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WO2013032204A2 - Linear oscillator - Google Patents

Linear oscillator Download PDF

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Publication number
WO2013032204A2
WO2013032204A2 PCT/KR2012/006838 KR2012006838W WO2013032204A2 WO 2013032204 A2 WO2013032204 A2 WO 2013032204A2 KR 2012006838 W KR2012006838 W KR 2012006838W WO 2013032204 A2 WO2013032204 A2 WO 2013032204A2
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WO
WIPO (PCT)
Prior art keywords
power supply
coil
supply unit
bracket
fixed
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2012/006838
Other languages
French (fr)
Korean (ko)
Other versions
WO2013032204A3 (en
Inventor
이인호
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from KR1020110086129A external-priority patent/KR20130022997A/en
Priority claimed from KR1020110117484A external-priority patent/KR101141726B1/en
Application filed by Individual filed Critical Individual
Publication of WO2013032204A2 publication Critical patent/WO2013032204A2/en
Publication of WO2013032204A3 publication Critical patent/WO2013032204A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K33/00—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system
    • H02K33/18—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with coil systems moving upon intermittent or reversed energisation thereof by interaction with a fixed field system, e.g. permanent magnets

Definitions

  • the present invention relates to a linear vibrator, and more particularly, to a linear vibrator mounted on a personal portable terminal, a game machine, a remote control, and the like.
  • This incoming call function has been implemented in many ways, such as melody and bell, and the vibration method of shaking the device. Among them, the vibration method is mainly used to prevent melody or bell from harming others.
  • the vibration method is generally implemented by driving a small vibrator and transmitting the driving force to the case of the device.
  • the conventional linear vibrator includes a case having a predetermined space therein and a magnetic circuit part for generating a magnetic field of a constant intensity.
  • the magnetic circuit unit includes a magnet yoke disposed in the inner space of the case and a permanent magnet mounted inside the magnet yoke. At the bottom of the case, a spring member fixed to the magnetic circuit part is mounted.
  • the mass body is integrally mounted to the magnetic circuit portion and together with the magnetic circuit portion constitutes the movement portion.
  • the coil When the permanent magnet is moved in the conventional linear vibrator, the coil is mounted on the bottom of the case (or bracket), so that the power supply unit can be relatively stably fixed.
  • the coil when the coil is moving it is very difficult to secure the power supply.
  • An object of the present invention is to provide a linear oscillator to stably fix the power supply to the bracket while absorbing the vibration generated in the movement of the coil to solve the above problems.
  • Another object of the present invention is to provide a linear vibrator which is small in size and has a long vibration life.
  • the present invention for achieving the above object is a linear vibrator, a case having a space therein, a bracket disposed facing the case, a permanent magnet fixed to the case or bracket, and around the permanent magnet
  • a coil disposed, a coil support member fixed to the coil, one end fixed to the coil support member, the other end fixed to the bracket, and a power supply unit providing external power to the coil, and one end to the case or bracket
  • It is fixed and the other end is fixed to the coil support member and comprises an elastic member for supporting the movement of the coil support member, the electromagnetic force generated between the coil and the permanent magnet when an external power is applied through the power supply and
  • the coil supporting member linearly moves in the inner space of the case by the elasticity of the elastic member,
  • a bracket and the power supply unit may be that which is fixed by the engagement of the projection and groove.
  • the present invention provides a linear oscillator, a case having a space therein, a bracket disposed facing the case, a permanent magnet fixed to the case or bracket, and a coil disposed around the permanent magnet, A coil support member fixed to the coil, one end of which is fixed to the coil support member, the other end of which is fixed to the bracket, and a power supply for supplying external power to the coil, one end of which is fixed to the case or the bracket, and the coil support
  • the other end is fixed to the member and includes an elastic member for supporting the movement of the coil support member, when the external power is applied through the power supply to the electromagnetic force generated between the coil and the permanent magnet and the elasticity of the elastic member By the linear movement of the coil support member, the power supply having a protrusion or groove on the side And in other characteristics.
  • the present invention provides a linear oscillator, a case having a space therein, a bracket disposed facing the case, a permanent magnet fixed to the case or bracket, and a coil disposed around the permanent magnet, A coil support member fixed to the coil, one end of which is fixed to the coil support member, the other end of which is fixed to the bracket, and a power supply for supplying external power to the coil, one end of which is fixed to the case or the bracket, and the coil support
  • the other end is fixed to the member and includes an elastic member for supporting the movement of the coil support member, when the external power is applied through the power supply to the electromagnetic force generated between the coil and the permanent magnet and the elasticity of the elastic member
  • the coil support member is linearly moved, and the power supply unit has a bent portion at a side in some region. It is another feature.
  • the present invention even if the coil moves, it is possible to implement a linear vibrator in which the power supply is stably fixed to the bracket. In addition, it is possible to ensure the maximum weight and moving distance of the mass body to implement a linear oscillator that realizes high vibration even in a small size. In addition, while improving the vibration performance of the linear vibrator, it is possible to realize a slimmer and longer life of the linear vibrator.
  • FIG. 1 is a cross-sectional view of a linear vibrator according to an embodiment of the present invention.
  • FIG. 2 is a cross-sectional view of the fixing part of the power supply unit according to an embodiment of the present invention.
  • FIG 3 is a plan view of a bracket according to an embodiment of the present invention.
  • FIG. 4 is a plan view of a power supply unit according to an embodiment of the present invention.
  • FIG. 5 is a plan view of a bracket according to another embodiment of the present invention.
  • FIG. 6 is a plan view of a power supply unit according to another embodiment of the present invention.
  • FIG. 7 is a plan view of a power supply unit according to another embodiment of the present invention.
  • FIG. 8 is a plan view of a power supply unit according to another embodiment of the present invention.
  • FIG. 9 is a plan view of a power supply unit according to another embodiment of the present invention.
  • FIG. 10 is an exploded perspective view of a linear vibrator according to another embodiment of the present invention.
  • FIG. 11 is a cross-sectional view of the linear vibrator shown in FIG. 10.
  • FIG. 12 is a structural diagram of a power supply unit of FIG. 10.
  • FIGS. 13 to 16 are structural diagrams of a power supply unit according to still another embodiment of the present invention.
  • FIG. 17 is an exploded perspective view of a linear vibrator according to another embodiment of the present invention.
  • FIG. 18 is a cross-sectional view of the linear vibrator of FIG. 17.
  • 19 and 20 are structural diagrams of a power supply unit according to still another embodiment of the present invention.
  • 21 is an assembly view of the power supply unit and the mass according to another embodiment of the present invention.
  • 22 is an assembly view of the power supply unit and the mass according to another embodiment of the present invention.
  • FIG. 23 is an assembly view of a linear vibrator according to another embodiment of the present invention.
  • FIG. 24 is a layout view of a board of a power supply unit according to an exemplary embodiment of the present invention.
  • 25 is an angle of the "U" shaped bend according to an embodiment of the present invention.
  • Figure 1 is a cross-sectional view of a linear oscillator according to an embodiment of the present invention.
  • the linear vibrator 100 includes a case 102 having a predetermined space therein, a bracket 104 facing the case 102, and a permanent magnet 106 disposed on the bracket 104.
  • the magnet yoke 108 disposed on one side of the permanent magnet 106 has a coil 110 that generates an electric field when the power is applied around the permanent magnet 106.
  • the coil support member (or mass) 112 is directly fixed to the outer side of the coil 110, and the spring support 114 is attached to one side of the coil support member 112. Therefore, the magnetic flux generated by the permanent magnet 106 crosses the coil 110 disposed adjacent to the magnet yoke 108 and passes through the coil support member 112 or the air fixed to the outside of the coil 110. And flows back to the permanent magnet 106.
  • the power supply unit 116 for applying power to the coil 110 is disposed to be fixed to the coil support member 112.
  • the power supply unit 116 mainly uses a flexible circuit board.
  • One side of the spring member (or elastic member) 120 is fixed to the case 102 and the other side of the spring member 114 or the coil support member 112 is fixed.
  • the coil support member 112, the coil 110, the spring support 114, and the like that vibrate up and down using the elasticity of the spring member 120 constitute a motion part.
  • the power supply 116 is disposed on the bracket 104.
  • the coil 110 is moved by an electromagnetic force generated between the coil 110 and the permanent magnet 106 according to an input signal input through the power supply unit 116 from the outside.
  • the power supply unit 116 is formed of a flexible circuit board, one side of the power supply unit 116 is fixed to the coil support member 112, and the other side surface is fixed to the bracket 104. That is, one side of the power supply unit 116 is fixed to the moving parts, the other side is fixed to the non-moving parts. Therefore, the power supply 116 should be stably connected to the coil support member 112 and the bracket 104 without being affected by the movement of the coil 110 in the structure in which the coil 110 and the coil support member 112 move. . Otherwise, the power supply unit 116 may be cut off, or the movement of the coil support member 112 may be affected and the characteristics may be weakened.
  • Magnetic fluid may be used between the permanent magnet 106 and the coil 110. Magnetic fluid (not shown) improves the efficiency of the magnetic circuit and frictionally acts on the coil when the moving part stops during the reciprocating motion to shorten the stopping time, thereby obtaining high responsiveness.
  • an adjustment hole 124 is provided in a part of the case 102.
  • the spring member 120 and the power supply unit 116 during the reciprocating movement of the movement unit may be provided with a protrusion and a groove on a portion of the coil support member 112 so that the noise does not occur smoothly.
  • the weight of the moving part should be increased as much as possible or the moving distance should be as large as possible.
  • the damper 126 may be disposed between the moving part and the case 102 or between the moving part and the bracket 104.
  • a magnetic member (not shown) of a ferromagnetic material such as iron, nickel, and chromium may be thinly disposed on the surface of the coil support member 112. For example, by arranging the magnetic member thinly using a technique such as plating or painting, the magnetic efficiency can be increased without reducing the weight of the coil support member 112.
  • FIG. 2 is a cross-sectional view of the fixing part 200 of the power supply unit 116 according to an embodiment of the present invention. As shown in FIG. 2, the bracket protrusion 202 is placed on the bracket 104 and the power supply groove 204 is fitted to the power supply unit 116 to fit each other, thereby achieving easy and stable structure.
  • FIG. 3 is a structural diagram of a bracket according to an embodiment of the present invention.
  • the bracket groove 302 may be provided in a part of the bracket 104, and the power supply unit 116 may be attached to the bracket 104 by injecting bond or lead using the groove.
  • FIG. 4 is a structural diagram of a power supply unit 116 according to an embodiment of the present invention.
  • nickel, zinc, tin, copper, or the like may be plated on a portion of the surface of the power supply 116 to improve adhesion when injecting bond or lead through the bracket groove 302.
  • bond or lead can easily flow between the bracket 104 and the power supply 116 to increase the fixing force.
  • Bracket protrusion 502 is placed on a part of the bracket 104 and the power supply groove 602 is fitted to the power supply unit 116 to fit together so that the power supply unit 116 and the bracket 104 can be stably fixed.
  • the surface of the bracket 104 is advantageously plated with nickel, zinc, tin, copper or the like to improve workability with respect to soldering or bonding and have a strong adhesive force.
  • a portion of the bracket 104 may be formed using a forging or a press to form grooves and protrusions or to install holes.
  • the liquid lead is injected into the bracket groove 302 and then hot air or By heating with a soldering iron, the power supply unit 116 and the bracket 104 can be fixed simply.
  • the camera module in the mobile phone also moves the lens by the electromagnetic force between the permanent magnet and the coil for autofocusing.
  • a stable power supply unit may be configured similarly to the above-described embodiment.
  • the power supply unit 700 arranged in the power connection direction 702 has a protrusion 704 and a groove 706 in a direction perpendicular to the power connection direction 702 to provide the power supply unit 700.
  • the length can be made larger.
  • the power supply unit 700 pulls or pushes the moving part.
  • the exercise unit may not be able to exercise smoothly. As the force is applied to the power supply 700, the power supply 700 is easily broken and broken.
  • the protrusion 704 or the groove 706 formed in the power supply unit 700 may be formed in a “” shape, and the protrusion 704
  • the length of the power connection direction 702 may be larger or smaller than the length of the power connection direction 702 of the groove 706.
  • FIG. 8 is a plan view of a power supply unit according to another embodiment of the present invention.
  • a portion of the power supply 800 may be provided with a hole 804 in the power connection direction 802 so that the power supply 800 may be more flexible in the power connection direction 802.
  • the power supply unit 800 is perpendicular to the side surface of the power supply unit 800 using the holes 804, the protrusions 806, and the grooves 808. A portion of the) is easily deformed so that less force is applied to the connecting terminals 810 and 812.
  • the material of the power supply unit 800 is ductile and elastic.
  • FIG. 9 is a plan view of a power supply unit according to another embodiment of the present invention.
  • both sides of the power supply unit 900 may be used, and both sides of the power supply unit 900 may be energized through the power supply holes 902 to reduce the width of the power supply unit 900. As the width decreases, the mass (or coil support member) 112 or bracket 104 facing the power supply unit 900 is less affected.
  • the moving part may dig an escape groove in the mass body 112 to prevent noise from being generated by contacting the power supply 900 during operation. If the escape groove is large or wide, the weight of the mass body 112 is reduced to reduce vibration. In addition, when forging the bracket 104 in order to reduce the contact with the power supply unit 900, the larger the forging surface is easy to deform and the productivity is lowered.
  • FIG. 10 is a schematic exploded perspective view of a linear vibrator according to still another embodiment of the present invention
  • FIG. 11 is a cross-sectional view of the linear vibrator of FIG. 10.
  • the linear vibrator 1000 supplies a casing 1001 to form an exterior and a part accommodating space, a vibration generator 1003 for generating vibration in the casing 1001, and a driving power supply for the vibration generator 1003. And a power supply unit 1302.
  • the casing 1001 includes a casing main body 1002 having an open inner space at one side and a bracket 1004 blocking the open portion of the casing main body 1002.
  • the casing body 1002 may have a cylindrical shape, and an open portion may be formed at the lower side.
  • the space formed inside the casing body 1002 is used as a receiving space for the components constituting the vibration generating unit 1003.
  • a plurality of through holes 1030 may be formed in the upper portion of the casing body 1002 for coating magnetic fluid or laser welding of parts, which will be described later.
  • a damper 1018 for preventing component damage and noise caused by contact with the vibration unit 1100 of the vibration generating unit 1003 to be described later is coupled to the inner central region of the casing body 1002.
  • the damper 1018 may be coupled to a mass 1012 to be described later.
  • the bracket 1004 may be formed in a disc shape that blocks the open portion of the casing body 1002, and at one side thereof, a terminal coupling piece 1038 coupled to expose the power supply unit 1302 to the outside protrudes outwardly. It is.
  • a damper 1018 for preventing component damage and noise caused by contact with the vibration unit 1100 of the vibration generating unit 1003, which will be described later, is also provided on the upper center region of the bracket 1004 facing the inner side of the casing body 1002. Are combined. This damper 1018 may be coupled to a mass 1012 to be successively.
  • the vibration generating unit 1003 elastically vibrates the vibration unit 1100 and the vibration unit 1100 linearly reciprocating by the electromagnetic force of the permanent magnet 1006 to generate a magnetic force, the permanent magnet 1006 by the power supply It has an elastic member 1020 to support it.
  • the permanent magnet 1006 has a smaller outer diameter than the flow opening 1022 formed in the coil 1010 of the vibration unit 1100 to be described later and is fixed on the bracket 1004 to perform the reciprocating motion of the vibration unit 1100 by electromagnetic force. Induce. At this time, it is preferable that the yoke 1008 is coupled to the permanent magnet 1006 so that the magnetic flux is smoothly formed.
  • the gap between the flow opening 1022 and the permanent magnet 1006 of the coil 1010 to fill the gap of the vibration unit 1100 At the same time to prevent the vibration, it is possible to induce a smooth reciprocating movement of the vibration unit 1100 to increase the efficiency of the magnetic force.
  • a magnetic fluid may be applied through the through hole 1030 formed in the casing body 1002.
  • the permanent magnet 1006 may be fixedly coupled to the bracket 1004 by forming a separate permanent magnet coupling portion (not shown) on the bracket 1004, and fixedly coupled to the bracket 1004 by a bonding method. Can be.
  • the permanent magnet 1006 may be provided on the inner upper surface of the casing body 1002 instead of the bracket 1004, and may be provided on both sides of the bracket 1004 and the casing body 1002.
  • a damper 1018 coupled to the bracket 1004 may be located in the peripheral region of the permanent magnet 1006, a damper 1018 coupled to the bracket 1004 may be located.
  • the vibration unit 1100 may include a coil 1010 generating an electric field by power supply, and a mass 1012 coupled to the coil 1010 and giving a weight for vibration generation.
  • the coil 1010 is electrically connected to the coil connecting portion 1303 of the flexible circuit board, which will be described later, and has a structure in which a flow opening 1022 in which the permanent magnet 1006 is relatively flowed is formed at the center thereof.
  • the flow opening 1022 has a larger inner diameter than the outer diameter of the permanent magnet 1006, and maintains a non-contact state with respect to the circumference of the permanent magnet 1006 during the reciprocating motion of the vibration unit 1100.
  • the lead wire (not shown) of the coil 1010 is connected to the coil connection portion 1303 of the flexible circuit board coupled to the terminal coupling portion 1040 of the mass body 1012 to be described later.
  • the mass 1012 has a smaller volume than the inner space of the casing 1001 and is coupled around the coil 1010.
  • one of the methods for increasing the vibration force in the linear vibrator may be to increase the weight of the mass 1012 or the reciprocating speed.
  • the mass 1012 may be selected from tungsten having a relatively heavy specific gravity in the same volume. It can be provided with a material fee.
  • a structure capable of coupling an auxiliary mass (not shown) capable of adding or subtracting mass to or from the mass 1012, or various types of masses to add or subtract the mass of the mass 1012 within a predetermined mass 1012. Protruding structures (not shown) or recessed structures (not shown) may be formed.
  • a magnetic thin film may be formed on the surface of the mass body 1012 by using a ferromagnetic material such as iron, nickel, and chromium in order to maximize magnetic efficiency.
  • the magnetic thin film may be formed on the surface of the mass 1012 by a method such as plating or painting.
  • the upper surface of the mass body 1012 is coupled to the elastic member support holder 1014, one side of which is connected to the elastic member 1020, the lower surface of the terminal coupling portion 1040 to which the coil connecting portion 1303 is coupled to be formed. Can be.
  • Both sides of the elastic member 1020 are coupled to the elastic member support holder 1014 coupled to the inner upper surface of the casing body 1002 and the mass body 1012, respectively, to impart elastic force to the mass body 1012.
  • the elastic member 1020 may be provided with an elastic body of various forms such as a coil spring or a leaf spring.
  • the vibration generator 1003 When the vibration generator 1003 is supplied to the coil 1010 through the power supply 1302, the vibration generator 1003 is burnt to the elastic member 1020 by the electromagnetic force generated between the coil 1010 and the permanent magnet 1006.
  • the sexually supported vibration unit 1100 reciprocates at a constant resonance frequency to generate vibration.
  • the permanent magnet 1006 is relatively non-contact reciprocating movement relative to the flow opening 1022 of the coil 1010.
  • the power supply unit 1302 is provided at a position corresponding to a partial region of the circumference of the permanent magnet 1006 and at a position corresponding to an outer region of the flow opening 1022 of the coil 1010. And external power supply.
  • the power supply unit 1302 includes a coil connection unit 1303 connected to the coil 1010, a power connection unit 1304 connected to an external power source, and a main circuit connecting the coil connection unit 1303 and the power connection unit 1304 to each other.
  • the substrate 1306 may have a structure integrally formed.
  • the coil connection unit 1303 may be electrically connected to a lead wire (not shown) extending from the coil 1010 while being coupled to the terminal coupling unit 1040 of the mass body 1012.
  • the coil connecting portion 1303 may be provided as a coil connecting terminal.
  • the power supply connection unit 1304 is connected to an external power source in a state of being coupled to the terminal coupling piece 1038 of the bracket 1004.
  • the power connection 1304 may be provided as a power connection terminal.
  • the power supply connection unit 1304 may have a casing fixing structure (not shown) for firm fixing to the terminal coupling piece 1038 of the casing 1001 or the bracket 1004.
  • the casing fixing structure (not shown) may be a fixing protrusion and a fixing hole formed at the terminal coupling piece 1038 and the power connection 1304 of the casing 1001 or the bracket 1004 and coupled to each other.
  • the power supply unit 1302 may omit the structures of the coil connection unit 1303 and the power connection unit 1304 and may be formed of only the structure of the main circuit board 1306. In this case, both ends of the power supply unit 1302 may be directly connected to the coil 1010 and an external power source.
  • the power supply unit 1302 has a structure in which the bent portions 1308a to 1308d are formed in a plurality of longitudinal regions while the main circuit board 1306 has a curved partial arc shape.
  • the bent portion 1308 may have an S-shape that is bent in an alternating partial arc shape toward both sides in the width direction of the main circuit board 1306.
  • the curved portion 1308 may be bent in a partial arc shape only to one side in the width direction of the main circuit board 1306.
  • the bent portion 1308 may have a shape of a child alternately curved toward both sides of the main circuit board 1306 in the width direction.
  • the bent part 1308 may be bent in various polygonal shapes.
  • the bent part 1308 may be bent in a polygonal shape only to one side in the width direction of the main circuit board 1306.
  • the power supply unit 1302 having such a structure has a buffering action in which the plurality of bends 1308 are elastically contracted and expanded during vertical reciprocation of the mass 1012. This buffering action is due to the flexibility of the flexible circuit board constituting the power supply 1302.
  • the structure of the main circuit board 1306 may also sufficiently correspond to the reciprocating movement width of the vibration unit 1100 while minimizing a space occupied by the power supply unit 1302 in the narrow part accommodating space inside the casing 1001. To ensure length and cushioning. As a result, disconnection of the power supply unit 1302 can be prevented and the life of the linear vibrator 1000 can be extended.
  • the power supply unit 1302 is moved around the partial region of the permanent magnet 1006 and the coil 1010. Since it can be disposed at a position corresponding to the area outside the opening 1022, the interference of the power supply unit 1302 with respect to the vibration unit 1100 and the permanent magnet 1006 can be sufficiently avoided. As a result, the reciprocating movement width of the vibration unit 1100 can be secured to the maximum in the vertical direction inside the casing 1001.
  • the width of the reciprocating motion of the vibration unit 1100 can be extended to the extent that the free end of the permanent magnet 1006 (the upper end of the permanent magnet on the drawing) passes through the flow opening 1022 of the coil 1010. Therefore, while reducing the thickness of the linear vibrator 1000, it is possible to ensure a sufficient vibration force.
  • the thickness or width of some sections of the main circuit board may be different from the other sections.
  • FIG. 17 is a schematic exploded perspective view of a linear vibrator according to still another embodiment of the present invention
  • FIG. 18 is a cross-sectional view of the linear vibrator of FIG. 17.
  • the power supply unit 1016 may have a partial arc shape that is bent as a whole by the structure of the main circuit board 1200 when viewed in a plan view, and a bent portion is formed in at least a partial region in the longitudinal direction of the main circuit board 1200. It may have various forms in the range.
  • the power supply unit 1016 may have a U-shape while the main circuit board 1200 has a curved partial arc shape. That is, one bent portion 1204 may be formed in a U-shape in the middle portion of the main circuit board 1200 in the longitudinal direction. In this case, the coil connecting unit 1208 and the power connecting unit 1210 may be formed at both adjacent ends of the main circuit board 1200.
  • the U-shaped main circuit board 1200 has a structure having a first conducting portion 1202 and a second conducting portion 1206 curved in parallel to both sides of the bent portion 1204 and vertically reciprocating the mass body 1012. As shown in FIGS. 19 and 20, the first conducting unit 1202 and the second conducting unit 1206 may be buffered to each other in a vertical direction with respect to the bent portion 1204. This buffering action is due to the flexibility of the flexible circuit board constituting the power supply 1016. As such, the structure of the main circuit board 1200 can sufficiently cope with the reciprocating movement width of the vibration unit 1100 while minimizing the space occupied by the power supply unit 1016 in the narrow part accommodating space inside the casing 1001. Ensure length and cushioning. As a result, disconnection of the power supply unit 1016 can be prevented and the life of the linear vibrator 1000 can be extended.
  • the structure of the main circuit board 1200 allows the power supply unit 1016 to be disposed at a position corresponding to a partial area around the periphery of the permanent magnet 1006 and an area outside the flow opening 1022 of the coil 1010.
  • the interference of the power supply unit 1016 with respect to the vibration unit 1100 and the permanent magnet 1006 can be sufficiently avoided.
  • the reciprocating movement width of the vibration unit 1100 can be secured to the maximum in the vertical direction inside the casing 1001. That is, the width of the reciprocating motion of the vibration unit 1100 can be extended to the extent that the free end of the permanent magnet 1006 (the upper end of the permanent magnet on the drawing) passes through the flow opening 1022 of the coil 1010. Therefore, while reducing the thickness of the linear vibrator 1000, it is possible to ensure a sufficient vibration force.
  • the power supply unit 1016 has a first conducting unit 1202 therein, and passes from the coil connecting unit 1208 to the first conducting unit 1202 through the “U” -shaped bend 1204 to the second conducting unit 1206. ).
  • the second energizing unit 1206 is connected to the power connection unit 1210 is connected to an external power source.
  • the power supply unit 1016 is usually formed of a flexible circuit board so as to withstand vibration and shock well by using elastic force. In addition, by lengthening the coil connecting portion 1208 and the power connecting portion 1210 to minimize the space occupied by the power supply unit 1016 in a given space to cushion the external vibration or shock. As a result, even if the mass 1012 moves up and down for a long time in a narrow space, the power supply 1016 may be implemented without damaging the power supply 1016.
  • the copper foil pattern is comprised on both sides. In this embodiment, both surfaces may be energized through the conduction hole 1212.
  • FIG. 21 is an assembly view of the power supply unit and the mass according to another embodiment of the present invention.
  • a part of the coil connection unit 1708 is fixed to the power supply unit fixing unit 1704 of the mass 1706.
  • the power supply 1702 is circular, it is necessary to eliminate the mass 1706 of a considerable amount of space and make the power supply fixing part 1704.
  • part of the mass 1706 must be removed in the 360 degree space and the power supply fixing part 1704 should be installed.
  • FIG. 21B illustrates a case where the space of the mass body 1706 is eliminated 360 degrees. However, as shown in (a) of FIG.
  • the portion marked with "B” does not need the power supply fixing part 1704, so that the weight of the mass 1706 is increased by using the mass 1706 as it is without making a groove.
  • the vibration force In particular, in the case of a small vibrator, the effect of increasing the vibration force is large.
  • FIG. 22 is an assembly view of the power supply unit and the mass according to another embodiment of the present invention.
  • the damper 1018 is disposed between the mass 1012 and the case 1002 or between the mass 1012 and the bracket 1004 and requires space due to the thickness of the damper 1018. There is a limit in reducing the thickness of the vibrator.
  • FIG. 22 by removing a part of the mass 1802 in a 360 degree space and installing a power supply fixing part 1804, a power supply 1806 is disposed in a part and a damper 1808 is attached to the remaining space.
  • the space between the mass 1802 and the case or the mass 1802 and the bracket generated by the damper can be used to the maximum. That is, space efficiency can be maximized.
  • FIG. 23 is an assembly view of a linear vibrator according to another embodiment of the present invention.
  • FIG. 23A is a sectional view
  • FIG. 23B is a plan view
  • FIG. 23C is an enlarged sectional view of a power supply fixing part.
  • a part of the power supply unit 1902 is attached to the coil 1901, and another part of the power supply unit 1902 does not cover the outer circumferential surface of the permanent magnet 1904, but partially covers the bottom surface of the permanent magnet 1904. It is placed facing each other.
  • the weight of the mass 1906 may be maximized by removing the power supply unit fixing part from the mass 1906 in order to give a high vibration force.
  • the height of the permanent magnet 1904 is reduced, or between the mass body 1906 and the case 1908, or The movement distance between the mass 1906 and the bracket 1910 may be limited.
  • FIG. 24 is a layout view of a board of a power supply unit.
  • FIG. 24A illustrates a case in which the power supply unit has a circular shape and an inner hole
  • FIG. 24B illustrates a case in which the power supply unit has a “U” shaped bend 1202 as in the above embodiment.
  • Figure 24 when the power supply is mass-produced with a flexible circuit board, it can be seen that the power supply having a "U" shaped bent portion 1202 has a high production yield in a given area, which is economically much more advantageous.
  • the angle “a” at which the first conducting portion 2104 and the second conducting portion 2106 meet at the “U” -shaped bend portion 2102 is preferably 90 degrees or less at most. If the angle of "a" exceeds 90 degrees, this may cause quality problems, cost competitiveness problems due to reduced material costs, and mass reduction problems.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)

Abstract

According to the present invention, a linear oscillator comprises: a case having a space therein; a bracket arranged opposite the case; a permanent magnet fixed to the case or to the bracket; a coil arranged around the permanent magnet; a coil supporting member fixed to the coil; a power supply unit having one end fixed to the coil supporting member and another end fixed to the bracket, for supplying external electrical power to the coil; and a resilient member having one end fixed to the case or the bracket and another end fixed to the coil supporting member, for supporting the movement of the coil supporting member. When external electrical power is applied through the power supply unit, the coil supporting member is linearly moved in the space inside the case by means of an electromagnetic force generated between the coil and the permanent magnet and by means of the resilience of the resilient member. The bracket and the power supply unit are fixed by means of a coupling between a projection and a recess.

Description

선형 진동자 Linear oscillator

본 발명은 선형 진동자에 관한 것으로, 보다 상세하게는 개인 휴대 단말기, 게임기, 리모콘 등에 장착되는 선형 진동자에 관한 것이다.The present invention relates to a linear vibrator, and more particularly, to a linear vibrator mounted on a personal portable terminal, a game machine, a remote control, and the like.

통신기기에 필요한 기능 중의 하나가 착신기능이다. 이러한 착신기능은 멜로디나 벨과 같은 발성방식과 기기를 떨게 하는 진동방식으로 많이 구현되고 있다. 이 중에서 진동방식은 멜로디나 벨이 타인에게 피해를 주지 않기 위해 주로 사용된다. 진동방식은 소형의 진동자를 구동시키고 그 구동력이 기기의 케이스로 전달되도록 하여 구현하는 것이 일반적이다. One of the functions required for communication equipment is called. This incoming call function has been implemented in many ways, such as melody and bell, and the vibration method of shaking the device. Among them, the vibration method is mainly used to prevent melody or bell from harming others. The vibration method is generally implemented by driving a small vibrator and transmitting the driving force to the case of the device.

종래의 선형 진동자는 내부에 소정의 공간을 가지는 케이스와, 일정 세기의 자기장을 만드는 자기회로부를 구비한다. 자기회로부는 케이스의 내부 공간에 배치된 자석요크와, 자석요크의 내측에 장착된 영구자석을 구비한다. 케이스의 하단에는 자기회로부에 고정된 스프링 부재가 장착된다. 질량체가 자기회로부에 일체로 장착되고 자기회로부와 함께 운동부를 구성한다. The conventional linear vibrator includes a case having a predetermined space therein and a magnetic circuit part for generating a magnetic field of a constant intensity. The magnetic circuit unit includes a magnet yoke disposed in the inner space of the case and a permanent magnet mounted inside the magnet yoke. At the bottom of the case, a spring member fixed to the magnetic circuit part is mounted. The mass body is integrally mounted to the magnetic circuit portion and together with the magnetic circuit portion constitutes the movement portion.

종래의 선형 진동자에서 영구자석이 움직이는 경우에는 코일이 케이스 하단(또는 브라켓)에 장착되므로 전원공급부를 비교적으로 안정적으로 고정시킬 수 있다. 그러나 코일이 움직이는 경우에는 전원공급부를 안정적으로 고정하기가 매우 어렵다. 전원공급부로서 연성회로기판을 사용하는 경우에도 코일의 운동에서 발생되는 진동을 흡수하면서 전원공급부를 브라켓에 안정적으로 고정하는 것은 어렵다. When the permanent magnet is moved in the conventional linear vibrator, the coil is mounted on the bottom of the case (or bracket), so that the power supply unit can be relatively stably fixed. However, when the coil is moving it is very difficult to secure the power supply. Even when a flexible circuit board is used as the power supply, it is difficult to stably fix the power supply to the bracket while absorbing vibration generated from the movement of the coil.

본 발명은 전술한 문제점을 해결하기 위하여 안출된 것으로 코일의 운동에서 발생되는 진동을 흡수하면서 전원공급부를 브라켓에 안정적으로 고정하는 선형 진동자를 제공하는 것을 일 목적으로 한다.An object of the present invention is to provide a linear oscillator to stably fix the power supply to the bracket while absorbing the vibration generated in the movement of the coil to solve the above problems.

또한 본 발명은 소형으로 높은 진동량을 갖으면서도 수명이 긴 선형 진동자를 제공하는 것을 다른 목적으로 한다. Another object of the present invention is to provide a linear vibrator which is small in size and has a long vibration life.

전술한 목적을 달성하기 위한 본 발명은 선형 진동자에 있어서, 내부에 공간을 가지는 케이스와, 상기 케이스와 마주보고 배치된 브라켓과, 상기 케이스 또는 브라켓에 고정된 영구자석과, 상기 영구자석의 주위에 배치되는 코일과, 상기 코일에 고정되는 코일지지부재와, 상기 코일지지부재에 일단이 고정되고 상기 브라켓에 다른 일단이 고정되며 외부 전원을 상기 코일에 제공하는 전원공급부와, 상기 케이스 또는 브라켓에 일단이 고정되고 상기 코일지지부재에 타단이 고정되며 상기 코일지지부재의 운동을 지지하는 탄성 부재를 포함하며, 상기 전원공급부를 통해 외부 전원이 인가될 때 상기 코일과 상기 영구자석 사이에 발생하는 전자기력과 상기 탄성 부재의 탄성에 의해 상기 코일지지부재가 상기 케이스의 내부 공간에서 선형 운동하고, 상기 브라켓과 상기 전원공급부는 돌기 및 홈의 결합에 의해 고정되는 것을 일 특징으로 한다. The present invention for achieving the above object is a linear vibrator, a case having a space therein, a bracket disposed facing the case, a permanent magnet fixed to the case or bracket, and around the permanent magnet A coil disposed, a coil support member fixed to the coil, one end fixed to the coil support member, the other end fixed to the bracket, and a power supply unit providing external power to the coil, and one end to the case or bracket It is fixed and the other end is fixed to the coil support member and comprises an elastic member for supporting the movement of the coil support member, the electromagnetic force generated between the coil and the permanent magnet when an external power is applied through the power supply and The coil supporting member linearly moves in the inner space of the case by the elasticity of the elastic member, A bracket and the power supply unit may be that which is fixed by the engagement of the projection and groove.

또한 본 발명은 선형 진동자에 있어서, 내부에 공간을 가지는 케이스와, 상기 케이스와 마주보고 배치된 브라켓과, 상기 케이스 또는 브라켓에 고정된 영구자석과, 상기 영구자석의 주위에 배치되는 코일과, 상기 코일에 고정되는 코일지지부재와, 상기 코일지지부재에 일단이 고정되고 상기 브라켓에 다른 일단이 고정되며 외부 전원을 상기 코일에 제공하는 전원공급부와, 상기 케이스 또는 브라켓에 일단이 고정되고 상기 코일지지부재에 타단이 고정되며 상기 코일지지부재의 운동을 지지하는 탄성 부재를 포함하며, 상기 전원공급부를 통해 외부 전원이 인가될 때 상기 코일과 상기 영구자석 사이에 발생하는 전자기력과 상기 탄성 부재의 탄성에 의해 상기 코일지지부재가 선형 운동하고, 상기 전원공급부는 측면에 돌기 또는 홈을 구비하는 것을 다른 특징으로 한다. In another aspect, the present invention provides a linear oscillator, a case having a space therein, a bracket disposed facing the case, a permanent magnet fixed to the case or bracket, and a coil disposed around the permanent magnet, A coil support member fixed to the coil, one end of which is fixed to the coil support member, the other end of which is fixed to the bracket, and a power supply for supplying external power to the coil, one end of which is fixed to the case or the bracket, and the coil support The other end is fixed to the member and includes an elastic member for supporting the movement of the coil support member, when the external power is applied through the power supply to the electromagnetic force generated between the coil and the permanent magnet and the elasticity of the elastic member By the linear movement of the coil support member, the power supply having a protrusion or groove on the side And in other characteristics.

또한 본 발명은 선형 진동자에 있어서, 내부에 공간을 가지는 케이스와, 상기 케이스와 마주보고 배치된 브라켓과, 상기 케이스 또는 브라켓에 고정된 영구자석과, 상기 영구자석의 주위에 배치되는 코일과, 상기 코일에 고정되는 코일지지부재와, 상기 코일지지부재에 일단이 고정되고 상기 브라켓에 다른 일단이 고정되며 외부 전원을 상기 코일에 제공하는 전원공급부와, 상기 케이스 또는 브라켓에 일단이 고정되고 상기 코일지지부재에 타단이 고정되며 상기 코일지지부재의 운동을 지지하는 탄성 부재를 포함하며, 상기 전원공급부를 통해 외부 전원이 인가될 때 상기 코일과 상기 영구자석 사이에 발생하는 전자기력과 상기 탄성 부재의 탄성에 의해 상기 코일지지부재가 선형 운동하고, 상기 전원공급부는 일부 영역에서 측면에 굴곡부를 구비하는 것을 또 다른 특징으로 한다. In another aspect, the present invention provides a linear oscillator, a case having a space therein, a bracket disposed facing the case, a permanent magnet fixed to the case or bracket, and a coil disposed around the permanent magnet, A coil support member fixed to the coil, one end of which is fixed to the coil support member, the other end of which is fixed to the bracket, and a power supply for supplying external power to the coil, one end of which is fixed to the case or the bracket, and the coil support The other end is fixed to the member and includes an elastic member for supporting the movement of the coil support member, when the external power is applied through the power supply to the electromagnetic force generated between the coil and the permanent magnet and the elasticity of the elastic member The coil support member is linearly moved, and the power supply unit has a bent portion at a side in some region. It is another feature.

본 발명에 따르면, 코일이 움직이더라도 전원공급부가 브라켓에 안정적으로 고정되는 선형 진동자를 구현할 수 있다. 또한 질량체의 무게와 이동거리를 최대로 확보할 수 있어 소형으로도 높은 진동을 실현하는 선형 진동자를 구현할 수 있다. 또한 선형 진동자의 진동 성능을 향상시킴과 동시에, 선형 진동자의 슬림화 및 고수명을 구현할 수 있다. According to the present invention, even if the coil moves, it is possible to implement a linear vibrator in which the power supply is stably fixed to the bracket. In addition, it is possible to ensure the maximum weight and moving distance of the mass body to implement a linear oscillator that realizes high vibration even in a small size. In addition, while improving the vibration performance of the linear vibrator, it is possible to realize a slimmer and longer life of the linear vibrator.

도 1은 본 발명의 일 실시예에 따른 선형 진동자의 단면도이다. 1 is a cross-sectional view of a linear vibrator according to an embodiment of the present invention.

도 2는 본 발명의 일 실시예에 따른 전원공급부의 고정부의 단면도이다. 2 is a cross-sectional view of the fixing part of the power supply unit according to an embodiment of the present invention.

도 3은 본 발명의 일 실시예에 따른 브라켓의 평면도이다. 3 is a plan view of a bracket according to an embodiment of the present invention.

도 4는 본 발명의 일 실시예에 따른 전원공급부의 평면도이다. 4 is a plan view of a power supply unit according to an embodiment of the present invention.

도 5는 본 발명의 다른 실시예에 따른 브라켓의 평면도이다. 5 is a plan view of a bracket according to another embodiment of the present invention.

도 6은 본 발명의 다른 실시예에 따른 전원공급부의 평면도이다. 6 is a plan view of a power supply unit according to another embodiment of the present invention.

도 7은 본 발명의 또 다른 실시예에 따른 전원공급부의 평면도이다. 7 is a plan view of a power supply unit according to another embodiment of the present invention.

도 8은 본 발명의 또 다른 실시예에 따른 전원공급부의 평면도이다. 8 is a plan view of a power supply unit according to another embodiment of the present invention.

도 9는 본 발명의 또 다른 실시예에 따른 전원공급부의 평면도이다.9 is a plan view of a power supply unit according to another embodiment of the present invention.

도 10은 본 발명의 또 다른 실시예에 따른 선형 진동자의 분해 사시도이다. 10 is an exploded perspective view of a linear vibrator according to another embodiment of the present invention.

도 11은 도 10에 도시된 선형 진동자의 단면도이다. FIG. 11 is a cross-sectional view of the linear vibrator shown in FIG. 10.

도 12는 도 10의 전원공급부의 구조도이다. 12 is a structural diagram of a power supply unit of FIG. 10.

도 13 내지 도 16는 본 발명의 또 다른 실시예에 따른 전원공급부의 구조도이다.13 to 16 are structural diagrams of a power supply unit according to still another embodiment of the present invention.

도 17는 본 발명의 또 다른 실시예에 따른 선형 진동자의 분해 사시도이다.17 is an exploded perspective view of a linear vibrator according to another embodiment of the present invention.

도 18은 도 17의 선형 진동자의 단면도이다. 18 is a cross-sectional view of the linear vibrator of FIG. 17.

도 19 및 도 20은 본 발명의 또 다른 실시에에 따른 전원공급부의 구조도이다.19 and 20 are structural diagrams of a power supply unit according to still another embodiment of the present invention.

도 21은 본 발명의 또 다른 실시예에 따른 전원공급부와 질량체의 조립도이다.21 is an assembly view of the power supply unit and the mass according to another embodiment of the present invention.

도 22은 본 발명의 또 다른 실시예에 따른 전원공급부와 질량체의 조립도이다. 22 is an assembly view of the power supply unit and the mass according to another embodiment of the present invention.

도 23는 본 발명의 또 다른 실시예에 따른 선형 진동자의 조립도이다. 23 is an assembly view of a linear vibrator according to another embodiment of the present invention.

도 24은 본 발명의 일 실시예에 따른 전원공급부의 기판 배치도이다. 24 is a layout view of a board of a power supply unit according to an exemplary embodiment of the present invention.

도 25은 본 발명의 일 실시예에 따른 "U"자 형상 굴곡부의 각도이다. 25 is an angle of the "U" shaped bend according to an embodiment of the present invention.

이하, 첨부된 도면을 참조하여 본 발명의 실시예를 상세히 설명한다. 먼저 도 1은 본 발명의 일 실시예에 따른 선형 진동자의 단면도이다. 도 1을 참조하면, 선형 진동자(100)는 내부에 소정의 공간을 가지는 케이스(102), 케이스(102)와 마주보고 결합된 브라켓(104), 브라켓(104) 위에 배치된 영구자석(106), 영구자석(106)의 일 측면에 배치되는 자석요크(108), 영구자석(106) 주위에 전원 인가시 전기장을 발생시키는 코일(110)을 구비한다. 코일(110)의 외측에 코일지지부재(또는 질량체)(112)가 직접적으로 고정되어 있고, 코일지지부재(112)의 일 측면에 스프링 지지대(114)가 부착된다. 따라서 영구자석(106)에서 발생된 자속은 자석요크(108)를 지나 인접하여 배치된 코일(110)을 쇄교하고, 코일(110)의 외측에 고정되어 있는 코일지지부재(112)나 공기를 경유하여 다시 영구자석(106)으로 흐른다. Hereinafter, with reference to the accompanying drawings will be described an embodiment of the present invention; First, Figure 1 is a cross-sectional view of a linear oscillator according to an embodiment of the present invention. Referring to FIG. 1, the linear vibrator 100 includes a case 102 having a predetermined space therein, a bracket 104 facing the case 102, and a permanent magnet 106 disposed on the bracket 104. The magnet yoke 108 disposed on one side of the permanent magnet 106 has a coil 110 that generates an electric field when the power is applied around the permanent magnet 106. The coil support member (or mass) 112 is directly fixed to the outer side of the coil 110, and the spring support 114 is attached to one side of the coil support member 112. Therefore, the magnetic flux generated by the permanent magnet 106 crosses the coil 110 disposed adjacent to the magnet yoke 108 and passes through the coil support member 112 or the air fixed to the outside of the coil 110. And flows back to the permanent magnet 106.

코일(110)에 전원을 인가하는 전원공급부(116)는 코일지지부재(112)에 일부분이 고정되도록 배치된다. 전원공급부(116)로는 주로 연성회로기판을 많이 사용한다.The power supply unit 116 for applying power to the coil 110 is disposed to be fixed to the coil support member 112. The power supply unit 116 mainly uses a flexible circuit board.

스프링 부재(또는 탄성 부재)(120)는 케이스(102)에 일 측면이 고정되고, 스프링 지지대(114) 또는 코일지지부재(112)에 다른 일 측면이 고정된다. 스프링 부재(120)의 탄성을 이용하여 상하 진동하는 코일지지부재(112), 코일(110), 스프링 지지대(114) 등은 운동부를 구성한다. One side of the spring member (or elastic member) 120 is fixed to the case 102 and the other side of the spring member 114 or the coil support member 112 is fixed. The coil support member 112, the coil 110, the spring support 114, and the like that vibrate up and down using the elasticity of the spring member 120 constitute a motion part.

전원공급부(116)는 브라켓(104) 위에 배치된다. 외부로부터 전원공급부(116)를 통해 들어온 입력신호에 따라 코일(110)과 영구자석(106) 사이에 발생하는 전자기력에 의해 코일(110)이 움직인다. 전원공급부(116)가 연성회로기판으로 형성된 구조에서는 전원공급부(116)의 일 측면이 코일지지부재(112)에 고정되어 있고, 다른 일측면이 브라켓(104)에 고정되어 있다. 즉, 전원공급부(116)의 일측면은 움직이는 부품에 고정되고, 다른 일측면은 움직이지 않는 부품에 고정되어 있다. 따라서 코일(110)과 코일지지부재(112)가 움직이는 구조에서 코일(110)의 움직임에 영향을 받지 않고 전원공급부(116)가 코일지지부재(112)와 브라켓(104)에 안정적으로 연결되어야 한다. 그렇지 않으면 전원공급부(116)가 끊어지거나, 코일지지부재(112)의 움직임이 영향을 받아서 특성이 약화될 수 있다.The power supply 116 is disposed on the bracket 104. The coil 110 is moved by an electromagnetic force generated between the coil 110 and the permanent magnet 106 according to an input signal input through the power supply unit 116 from the outside. In the structure in which the power supply unit 116 is formed of a flexible circuit board, one side of the power supply unit 116 is fixed to the coil support member 112, and the other side surface is fixed to the bracket 104. That is, one side of the power supply unit 116 is fixed to the moving parts, the other side is fixed to the non-moving parts. Therefore, the power supply 116 should be stably connected to the coil support member 112 and the bracket 104 without being affected by the movement of the coil 110 in the structure in which the coil 110 and the coil support member 112 move. . Otherwise, the power supply unit 116 may be cut off, or the movement of the coil support member 112 may be affected and the characteristics may be weakened.

영구자석(106)과 코일(110) 사이에 자성유체(도시되지 않음)를 사용할 수 있다. 자성유체(도시되지 않음)는 자기회로의 효율을 높이고, 운동부가 왕복 운동을 하다가 정지할 때 코일에 마찰 작용을 하여 정지 시간을 단축시켜서 높은 응답성을 얻도록 해준다. 자성유체의 투입량을 용이하게 조정하기 위하여 케이스(102) 일부에 조정구멍(124)을 설치한다. 또한 운동부가 왕복 운동하는 동안에 스프링 부재(120)와 전원공급부(116)가 원활하게 동작하고 소음이 발생하지 않도록 코일지지부재(112)의 일부에 돌기와 홈을 둘 수 있다.Magnetic fluid (not shown) may be used between the permanent magnet 106 and the coil 110. Magnetic fluid (not shown) improves the efficiency of the magnetic circuit and frictionally acts on the coil when the moving part stops during the reciprocating motion to shorten the stopping time, thereby obtaining high responsiveness. In order to easily adjust the input amount of the magnetic fluid, an adjustment hole 124 is provided in a part of the case 102. In addition, the spring member 120 and the power supply unit 116 during the reciprocating movement of the movement unit may be provided with a protrusion and a groove on a portion of the coil support member 112 so that the noise does not occur smoothly.

일반적으로 선형 진동자에서 운동부의 속도 또는 동작 주파수는 제품의 용도에 따라 거의 일정하게 사용하므로, 진동량을 키우기 위해서는 운동부의 중량을 최대한 늘이든지 이동거리를 최대한 크게 해야 한다. 운동부의 이동거리를 크게 하면 운동부의 일부가 케이스(102) 또는 브라켓(104)을 쳐서 소음이 발생할 수 있다. 이런 소음을 줄이기 위해 댐퍼(126)를 운동부와 케이스(102)의 사이 또는 운동부와 브라켓(104)의 사이에 배치할 수 있다. In general, since the speed or operating frequency of the moving part in the linear vibrator is almost constant according to the purpose of the product, in order to increase the amount of vibration, the weight of the moving part should be increased as much as possible or the moving distance should be as large as possible. When the moving distance of the moving part is increased, a part of the moving part may hit the case 102 or the bracket 104 and generate noise. To reduce this noise, the damper 126 may be disposed between the moving part and the case 102 or between the moving part and the bracket 104.

본 실시예에서는 영구자석(106)과 인접하여 코일(110)을 배치하고, 코일(110) 일측면에 질량체인 코일지지부재(112)를 배치함으로써, 한정된 높이와 직경을 가진 좁은 공간 내에서 코일지지부재(112)의 무게를 최대한 높일 수 있어서 높은 진동력을 가진 선형 진동자를 구현할 수 있다. 또한 자기회로의 효율을 극대화하기 위해 코일지지부재(112)의 표면에 철, 니켈, 크롬 등의 강자성체의 자성부재(도시되지 않음)를 얇게 배치할 수 있다. 예를 들어, 도금이나 도장 등의 기술을 사용하여 얇게 자성부재를 배치함으로써 코일지지부재(112)의 무게를 줄이지 않고 자기효율을 올릴 수 있다.In this embodiment, by arranging the coil 110 adjacent to the permanent magnet 106, and by placing the coil support member 112, which is a mass chain on one side of the coil 110, the coil in a narrow space having a limited height and diameter Since the weight of the support member 112 can be increased to the maximum, a linear vibrator having a high vibration force can be realized. Further, in order to maximize the efficiency of the magnetic circuit, a magnetic member (not shown) of a ferromagnetic material such as iron, nickel, and chromium may be thinly disposed on the surface of the coil support member 112. For example, by arranging the magnetic member thinly using a technique such as plating or painting, the magnetic efficiency can be increased without reducing the weight of the coil support member 112.

도 2는 본 발명의 일 실시예에 따른 전원공급부(116)의 고정부(200)의 단면도이다. 도 2에 도시된 바와 같이, 브라켓(104)에 브라켓 돌기(202)를 두고 전원공급부(116)에 전원공급부 홈(204)을 두어 서로 끼워 맞춤으로써 고정이 쉽고 안정된 구조를 구현할 수 있다. 2 is a cross-sectional view of the fixing part 200 of the power supply unit 116 according to an embodiment of the present invention. As shown in FIG. 2, the bracket protrusion 202 is placed on the bracket 104 and the power supply groove 204 is fitted to the power supply unit 116 to fit each other, thereby achieving easy and stable structure.

도 3은 본 발명의 일 실시예에 따른 브라켓의 구조도이다. 도 3에 도시된 바와 같이 브라켓(104) 일부에 브라켓 홈(302)을 두고, 이 홈을 이용하여 본드나 납을 주입하여 전원공급부(116)를 브라켓(104)에 접착시킬 수 있다. 3 is a structural diagram of a bracket according to an embodiment of the present invention. As shown in FIG. 3, the bracket groove 302 may be provided in a part of the bracket 104, and the power supply unit 116 may be attached to the bracket 104 by injecting bond or lead using the groove.

도 4는 본 발명의 일 실시예에 따른 전원공급부(116)의 구조도이다. 도 3에 도시된 구조에서 브라켓 홈(302)을 통해 본드나 납을 주입할 때 접착성을 향상시키기 위해 전원공급부(116)의 표면 일부에 니켈, 아연, 주석, 동 등을 도금할 수 있다. 특히 도금 패턴(402)을 두어, 도금이 있고 없음에 따라 생기는 얇은 두께 차이를 이용하여 본드나 납이 브라켓(104)과 전원공급부(116) 사이로 쉽게 흘러들어가도록 하여 고정하는 힘을 증대시킬 수 있다.4 is a structural diagram of a power supply unit 116 according to an embodiment of the present invention. In the structure shown in FIG. 3, nickel, zinc, tin, copper, or the like may be plated on a portion of the surface of the power supply 116 to improve adhesion when injecting bond or lead through the bracket groove 302. In particular, by placing a plating pattern 402, by using a thin thickness difference caused by the presence or absence of plating, bond or lead can easily flow between the bracket 104 and the power supply 116 to increase the fixing force. .

도 5는 본 발명의 다른 실시예에 따른 브라켓의 구조도이고, 도 6은 전원공급부의 구조도이다. 브라켓(104)의 일부에 브라켓 돌기(502)를 두고 전원공급부(116)에 전원공급부 홈(602)을 두어 서로 끼워 맞춤을 하여 전원공급부(116)와 브라켓(104)이 안정적으로 고정되도록 할 수 있다. 특히 브라켓(104)의 표면에는 납땜이나 본드 등에 대해 작업성을 높이고 강한 접착력을 갖도록 니켈, 아연, 주석, 동 등으로 도금하는 것이 유리하다. 브라켓(104)의 일부에 단조나 프레스를 이용하여 홈과 돌기를 형성하거나 구멍을 설치할 수 있다. 그리고 납땜을 통해서 고정하는 경우에 전원공급부(116)의 도금 패턴(402)과 브라켓(104)의 표면이 니켈이나 주석으로 도금되어 있는 때에는 액상의 납을 브라켓 홈(302)에 주입한 후 열풍이나 인두기로 가열함으로써 전원공급부(116)와 브라켓(104)을 간단히 고정할 수 있다.5 is a structural diagram of a bracket according to another embodiment of the present invention, Figure 6 is a structural diagram of the power supply. The bracket protrusion 502 is placed on a part of the bracket 104 and the power supply groove 602 is fitted to the power supply unit 116 to fit together so that the power supply unit 116 and the bracket 104 can be stably fixed. have. In particular, the surface of the bracket 104 is advantageously plated with nickel, zinc, tin, copper or the like to improve workability with respect to soldering or bonding and have a strong adhesive force. A portion of the bracket 104 may be formed using a forging or a press to form grooves and protrusions or to install holes. When the surface of the plating pattern 402 and the bracket 104 of the power supply unit 116 and the surface of the bracket 104 are plated with nickel or tin, the liquid lead is injected into the bracket groove 302 and then hot air or By heating with a soldering iron, the power supply unit 116 and the bracket 104 can be fixed simply.

모바일 폰에 들어가는 카메라 모듈에서도 자동 초점 조정을 위해 영구자석과 코일 사이의 전자기력에 의해 렌즈를 움직인다. 이 때에도 코일이 움직이는 구조에서는 연성회로기판을 이용하여 코일에 전원을 공급하는 경우 전술한 실시예와 유사하게 안정적인 전원공급부를 구성할 수 있다.The camera module in the mobile phone also moves the lens by the electromagnetic force between the permanent magnet and the coil for autofocusing. In this case, in the structure in which the coil moves, when the power is supplied to the coil using the flexible circuit board, a stable power supply unit may be configured similarly to the above-described embodiment.

도 7은 본 발명의 또 다른 실시예에 따른 전원공급부의 평면도이다. 도 7에 도시된 바와 같이, 전원 연결 방향(702)으로 배치된 전원공급부(700)는 전원 연결 방향(702)과 직각 방향으로 돌기(704)와 홈(706)을 두어 전원공급부(700)의 길이를 크게 할 수 있다. 전원공급부(700)의 연결단자(708)와 연결단자(710) 사이의 거리가 짧을수록 좁은 공간에서 직선으로 연결하여 사용하는 경우에는 전원공급부(700)가 운동부를 잡아당기거나 밀어내는 힘이 발생하여 운동부가 원활한 운동을 하지 못할 수 있다. 그리고 전원공급부(700)에 힘이 가해질수록 전원공급부(700)가 쉽게 파괴되어 끊어진다. 7 is a plan view of a power supply unit according to another embodiment of the present invention. As shown in FIG. 7, the power supply unit 700 arranged in the power connection direction 702 has a protrusion 704 and a groove 706 in a direction perpendicular to the power connection direction 702 to provide the power supply unit 700. The length can be made larger. When the distance between the connection terminal 708 and the connection terminal 710 of the power supply unit 700 is shorter and is used in a straight line in a narrow space, the power supply unit 700 pulls or pushes the moving part. The exercise unit may not be able to exercise smoothly. As the force is applied to the power supply 700, the power supply 700 is easily broken and broken.

본 실시예는 운동부가 움직이면서 전원공급부(700)에 전원 연결 방향(702)으로 힘이 걸리더라도 전원공급부(700)에 설치된 돌기(704)와 홈(706)을 이용하여 전원공급부(700)의 비틀림 현상, 홈(706)이 벌어지는 특성, 연성회로기판의 탄성 등을 이용함으로써 전원공급부(700)에 걸리는 힘을 흡수하여 전원공급부(700)가 파괴되는 것을 막아준다. 즉, 전원공급부(700)의 일부분이 쉽게 변형되도록 하여 연결단자(708, 710)에 걸리는 힘이 적어지게 된다. 도 7의 (a), (b), (c)에 도시된 바와 같이 전원공급부(700)에 형성된 돌기(704) 또는 홈(706)은 "" 형상으로 형성할 수 있으며, 돌기(704)의 전원 연결 방향(702)의 길이가 홈(706)의 전원 연결 방향(702)의 길이보다 크거나 작을 수 있다. 전원공급부(700)의 일측면에 돌기(704)가 형성되면 돌기(704)와 대향하는 측면에 홈(706)이 형성되는 것이 전체적인 전원공급부(700)의 폭을 줄이는데 유용하다. 폭을 줄이면 원가 경쟁력 및 탄성력이 좋아진다.In this embodiment, even if the moving part is moved to the power supply 700 in the direction of power connection 702, the twist of the power supply unit 700 using the projection 704 and the groove 706 installed in the power supply unit 700 By using the phenomenon, the characteristics of the groove 706, the elasticity of the flexible circuit board, and the like, the force applied to the power supply 700 is absorbed to prevent the power supply 700 from being destroyed. That is, a portion of the power supply 700 is easily deformed so that the force applied to the connection terminals 708 and 710 is reduced. As shown in (a), (b), and (c) of FIG. 7, the protrusion 704 or the groove 706 formed in the power supply unit 700 may be formed in a “” shape, and the protrusion 704 The length of the power connection direction 702 may be larger or smaller than the length of the power connection direction 702 of the groove 706. When the protrusion 704 is formed on one side of the power supply 700, it is useful to reduce the width of the overall power supply 700 when the groove 706 is formed on the side facing the protrusion 704. Reducing the width improves cost competitiveness and elasticity.

도 8은 본 발명의 또 다른 실시예에 따른 전원공급부의 평면도이다. 본 실시예의 경우에는 전원공급부(800)의 일부에 전원 연결 방향(802)으로 구멍(804)을 두어 전원공급부(800)가 전원 연결 방향(802)으로 좀 더 유연하게 탄성을 발휘할 수 있다. 이는 전원공급부(800)의 전원 연결 방향(802)으로 힘이 작용할 때 구멍(804)과 돌기(806)와 홈(808)을 이용하여 전원공급부(800)의 측면에 직각 방향으로 전원공급부(800)의 일부분이 쉽게 변형되도록 하여 연결단자(810, 812)에 힘이 적게 걸리도록 한다. 전원공급부(800)의 재질은 연성이면서 탄성이 클수록 바람직하다.8 is a plan view of a power supply unit according to another embodiment of the present invention. In the present embodiment, a portion of the power supply 800 may be provided with a hole 804 in the power connection direction 802 so that the power supply 800 may be more flexible in the power connection direction 802. When the force acts in the power connection direction 802 of the power supply unit 800, the power supply unit 800 is perpendicular to the side surface of the power supply unit 800 using the holes 804, the protrusions 806, and the grooves 808. A portion of the) is easily deformed so that less force is applied to the connecting terminals 810 and 812. The material of the power supply unit 800 is ductile and elastic.

도 9는 본 발명의 또 다른 실시예에 따른 전원공급부의 평면도이다. 본 실시예는 전원공급부(900)의 양면을 이용하고, 양면이 통전 구멍(902)을 통해 통전하게 함으로써 전원공급부(900)의 폭을 줄일 수 있다. 폭이 줄어들수록 전원공급부(900)와 마주보는 질량체(또는 코일지지부재)(112) 또는 브라켓(104)에 영향을 적게 준다. 9 is a plan view of a power supply unit according to another embodiment of the present invention. In this embodiment, both sides of the power supply unit 900 may be used, and both sides of the power supply unit 900 may be energized through the power supply holes 902 to reduce the width of the power supply unit 900. As the width decreases, the mass (or coil support member) 112 or bracket 104 facing the power supply unit 900 is less affected.

운동부가 동작 중에 전원공급부(900)와 접촉하여 소음이 발생하는 것을 막기 위해 질량체(112)에 도피 홈을 팔 수 있다. 도피 홈이 크거나 넓으면 질량체(112)의 무게가 줄어들어 진동이 저하된다. 또한 전원공급부(900)와의 접촉을 줄이기 위하여 브라켓(104)에 단조를 두는 경우 단조 면이 클수록 변형되기 쉽고 생산성이 저하된다.The moving part may dig an escape groove in the mass body 112 to prevent noise from being generated by contacting the power supply 900 during operation. If the escape groove is large or wide, the weight of the mass body 112 is reduced to reduce vibration. In addition, when forging the bracket 104 in order to reduce the contact with the power supply unit 900, the larger the forging surface is easy to deform and the productivity is lowered.

도 10은 본 발명의 또 다른 실시예에 따른 선형 진동자의 개략적인 분해 사시도이고, 도 11은 도 10의 선형 진동자의 단면도이다. 선형 진동자(1000)는 외관 및 부품 수용공간을 형성하는 케이싱(1001)과, 케이싱(1001) 내에서 진동을 발생시키는 진동발생부(1003)와, 진동발생부(1003)의 구동 전원을 공급하는 전원공급부(1302)을 포함한다. 케이싱(1001)은 일측 개방된 내부 공간을 갖는 케이싱본체(1002)와 케이싱본체(1002)의 개방 부분을 차단하는 브라켓(1004)이 상호 결합되어 구성된다. 10 is a schematic exploded perspective view of a linear vibrator according to still another embodiment of the present invention, and FIG. 11 is a cross-sectional view of the linear vibrator of FIG. 10. The linear vibrator 1000 supplies a casing 1001 to form an exterior and a part accommodating space, a vibration generator 1003 for generating vibration in the casing 1001, and a driving power supply for the vibration generator 1003. And a power supply unit 1302. The casing 1001 includes a casing main body 1002 having an open inner space at one side and a bracket 1004 blocking the open portion of the casing main body 1002.

케이싱본체(1002)는 원통 형상일 수 있으며, 개방 부분은 하측에 형성될 수 있다. 케이싱본체(1002)의 내부에 형성된 공간은 진동발생부(1003)를 구성하는 부품들의 수용공간으로 사용된다. 그리고 케이싱본체(1002)의 상부에는 후술할 자성유체의 도포나 부품의 레이저 용접을 위한 복수의 관통홀(1030)이 형성될 수 있다. 또한, 케이싱본체(1002)의 내측 중앙 영역에는 후술할 진동발생부(1003)의 진동유닛(1100)과의 접촉에 의한 부품손상 및 소음을 방지하기 위한 댐퍼(1018)가 결합되어 있다. 이 댐퍼(1018)는 후술할 질량체(1012)에 결합될 수도 있다. The casing body 1002 may have a cylindrical shape, and an open portion may be formed at the lower side. The space formed inside the casing body 1002 is used as a receiving space for the components constituting the vibration generating unit 1003. In addition, a plurality of through holes 1030 may be formed in the upper portion of the casing body 1002 for coating magnetic fluid or laser welding of parts, which will be described later. In addition, a damper 1018 for preventing component damage and noise caused by contact with the vibration unit 1100 of the vibration generating unit 1003 to be described later is coupled to the inner central region of the casing body 1002. The damper 1018 may be coupled to a mass 1012 to be described later.

브라켓(1004)은 케이싱본체(1002)의 개방 부분을 차단하는 원판 형상으로 형성될 수 있으며, 그 일 측에는 후술할 전원공급부(1302)가 외부로 노출되도록 결합되는 단자결합편(1038)이 외향 돌출되어 있다. 그리고 케이싱본체(1002) 내측을 향하는 브라켓(1004)의 상면 중앙 영역에도 후술할 진동발생부(1003)의 진동유닛(1100)과의 접촉에 의한 부품손상 및 소음을 방지하기 위한 댐퍼(1018)가 결합되어 있다. 이 댐퍼(1018)는 후수할 질량체(1012)에 결합될 수도 있다. The bracket 1004 may be formed in a disc shape that blocks the open portion of the casing body 1002, and at one side thereof, a terminal coupling piece 1038 coupled to expose the power supply unit 1302 to the outside protrudes outwardly. It is. In addition, a damper 1018 for preventing component damage and noise caused by contact with the vibration unit 1100 of the vibration generating unit 1003, which will be described later, is also provided on the upper center region of the bracket 1004 facing the inner side of the casing body 1002. Are combined. This damper 1018 may be coupled to a mass 1012 to be successively.

진동발생부(1003)는 자기력을 발생시키는 영구자석(1006)와, 전원공급에 의한 영구자석(1006)와의 전자기력에 의해 선형 왕복 운동하는 진동유닛(1100)과, 진동유닛(1100)을 탄성적으로 지지하는 탄성부재(1020)를 가지고 있다. The vibration generating unit 1003 elastically vibrates the vibration unit 1100 and the vibration unit 1100 linearly reciprocating by the electromagnetic force of the permanent magnet 1006 to generate a magnetic force, the permanent magnet 1006 by the power supply It has an elastic member 1020 to support it.

영구자석(1006)은 후술할 진동유닛(1100)의 코일(1010)에 형성된 유동개구(1022)보다 작은 외경을 가지고 브라켓(1004) 상에 고정되어 전자기력에 의한 진동유닛(1100)의 왕복 운동을 유도한다. 이때, 영구자석(1006) 상에는 자속이 원활하게 형성되도록 요크(1008)가 결합되는 것이 바람직하다.The permanent magnet 1006 has a smaller outer diameter than the flow opening 1022 formed in the coil 1010 of the vibration unit 1100 to be described later and is fixed on the bracket 1004 to perform the reciprocating motion of the vibration unit 1100 by electromagnetic force. Induce. At this time, it is preferable that the yoke 1008 is coupled to the permanent magnet 1006 so that the magnetic flux is smoothly formed.

그리고 영구자석(1006) 및 요크(1008)에 자성유체(도시되지 않음)를 도포함으로써, 코일(1010)의 유동개구(1022)와 영구자석(1006) 간의 유격을 매워 진동유닛(1100)의 이상 진동을 방지함과 동시에, 진동유닛(1100)의 원활한 왕복 이동을 유도하여 자기력의 효율을 높일 수 있다. 또한, 영구자석(1006) 및 요크(1008)에 자성유체를 도포함으로써, 진동유닛(1100)의 왕복 운동이 정지될 때, 코일(1010)과의 마찰 작용에 의한 정지 시간을 단축시켜서 선형 진동자(1000)의 빠른 응답성을 도모할 수 있다. 이러한 자성유체는 전술한 바와 같이, 케이싱본체(1002)에 형성된 관통홀(1030)을 통해 도포될 수 있다. And by applying a magnetic fluid (not shown) to the permanent magnet 1006 and the yoke 1008, the gap between the flow opening 1022 and the permanent magnet 1006 of the coil 1010 to fill the gap of the vibration unit 1100 At the same time to prevent the vibration, it is possible to induce a smooth reciprocating movement of the vibration unit 1100 to increase the efficiency of the magnetic force. In addition, by applying a magnetic fluid to the permanent magnet 1006 and the yoke 1008, when the reciprocating motion of the vibration unit 1100 is stopped, the stop time by friction action with the coil 1010 is shortened to reduce the linear vibrator ( Fast response of 1000) can be achieved. As described above, the magnetic fluid may be applied through the through hole 1030 formed in the casing body 1002.

여기서, 영구자석(1006)은 브라켓(1004)에 별도의 영구자석 결합부(미도시)를 형성하여 브라켓(1004)에 고정 결합될 수도 있으며, 본딩 등의 방법으로 브라켓(1004) 상에 고정 결합될 수 있다. 또한, 영구자석(1006)은 경우에 따라 브라켓(1004)이 아닌 케이싱본체(1002)의 내측 상부면에 마련될 수도 있으며, 브라켓(1004)과 케이싱본체(1002) 양측에 모두 마련될 수 있다. 영구자석(1006)의 둘레 영역에는 전술한 브라켓(1004)에 결합된 댐퍼(1018)가 위치할 수 있다. Here, the permanent magnet 1006 may be fixedly coupled to the bracket 1004 by forming a separate permanent magnet coupling portion (not shown) on the bracket 1004, and fixedly coupled to the bracket 1004 by a bonding method. Can be. In addition, the permanent magnet 1006 may be provided on the inner upper surface of the casing body 1002 instead of the bracket 1004, and may be provided on both sides of the bracket 1004 and the casing body 1002. In the peripheral region of the permanent magnet 1006, a damper 1018 coupled to the bracket 1004 may be located.

진동유닛(1100)은 전원 공급에 의해 전기장을 발생시키는 코일(1010)과, 코일(1010)에 결합되어 진동 발생을 위한 중량을 부여하는 질량체(1012)로 구성될 수 있다. 코일(1010)은 후술할 연성회로기판의 코일접속부(1303)와 전기적으로 연결되며, 그 중앙부에 영구자석(1006)이 상대적으로 유동하는 유동개구(1022)가 형성되어 있는 구조를 가지고 있다. 유동개구(1022)는 영구자석(1006)의 외경에 비해 큰 내경을 갖는 것으로서, 진동유닛(1100)의 왕복 운동시 영구자석(1006)의 둘레에 대해 비접촉 상태를 유지한다. 이 코일(1010)의 리드선(미도시)은 후술할 질량체(1012)의 단자결합부(1040)에 결합되는 연성회로기판의 코일접속부(1303)에 연결된다.The vibration unit 1100 may include a coil 1010 generating an electric field by power supply, and a mass 1012 coupled to the coil 1010 and giving a weight for vibration generation. The coil 1010 is electrically connected to the coil connecting portion 1303 of the flexible circuit board, which will be described later, and has a structure in which a flow opening 1022 in which the permanent magnet 1006 is relatively flowed is formed at the center thereof. The flow opening 1022 has a larger inner diameter than the outer diameter of the permanent magnet 1006, and maintains a non-contact state with respect to the circumference of the permanent magnet 1006 during the reciprocating motion of the vibration unit 1100. The lead wire (not shown) of the coil 1010 is connected to the coil connection portion 1303 of the flexible circuit board coupled to the terminal coupling portion 1040 of the mass body 1012 to be described later.

질량체(1012)는 케이싱(1001)의 내부 공간에 비해 작은 부피를 가지고 코일(1010)의 둘레에 결합되어 있다. 일반적으로 선형 진동자에서 진동력을 증가시키기 위한 방법 중 질량체(1012)의 중량이나 왕복 운동 속도를 증가시키는 것을 선택할 수 있는데, 이를 위해서, 질량체(1012)는 동일 체적 내에서 비교적 무거운 비중을 갖는 텅스텐 등의 재료료 마련될 수 있다. 또한, 질량체(1012)에 질량을 가감할 수 있는 보조 질량체(미도시)를 결합할 수 있는 구조나, 질량체(1012)의 질량을 정해진 질량체(1012)의 크기 내에서 가감할 수 있도록 다양한 형태의 돌출구조(미도시) 또는 함몰구조(미도시)를 형성할 수도 있다. The mass 1012 has a smaller volume than the inner space of the casing 1001 and is coupled around the coil 1010. In general, one of the methods for increasing the vibration force in the linear vibrator may be to increase the weight of the mass 1012 or the reciprocating speed. For this purpose, the mass 1012 may be selected from tungsten having a relatively heavy specific gravity in the same volume. It can be provided with a material fee. In addition, a structure capable of coupling an auxiliary mass (not shown) capable of adding or subtracting mass to or from the mass 1012, or various types of masses to add or subtract the mass of the mass 1012 within a predetermined mass 1012. Protruding structures (not shown) or recessed structures (not shown) may be formed.

그리고 질량체(1012)의 표면에는 자기효율을 극대화하기 위해서 철, 니켈, 크롬 등의 강자성체 재질로 자성박막(미도시)을 형성할 수 있다. 이 자성박막(미도시)은 도금 또는 도장 등의 방법으로 질량체(1012)의 표면에 형성될 수 있다. 또한, 질량체(1012)의 상면에는 탄성부재(1020)의 일측이 연결되는 탄성부재 지지홀더(1014)가 결합되어 있고, 하면에는 코일접속부(1303)가 결합되는 단자결합부(1040)가 형성될 수 있다.In addition, a magnetic thin film (not shown) may be formed on the surface of the mass body 1012 by using a ferromagnetic material such as iron, nickel, and chromium in order to maximize magnetic efficiency. The magnetic thin film (not shown) may be formed on the surface of the mass 1012 by a method such as plating or painting. In addition, the upper surface of the mass body 1012 is coupled to the elastic member support holder 1014, one side of which is connected to the elastic member 1020, the lower surface of the terminal coupling portion 1040 to which the coil connecting portion 1303 is coupled to be formed. Can be.

탄성부재(1020)는 상하 양측이 각각 케이싱본체(1002)의 내측 상부면과 질량체(1012)에 결합된 탄성부재 지지홀더(1014)에 결합되어 질량체(1012)에 탄성력을 부여한다. 이 탄성부재(1020)는 코일스프링이나 판스프링 등 다양한 형태의 탄성체로 마련될 수 있다. Both sides of the elastic member 1020 are coupled to the elastic member support holder 1014 coupled to the inner upper surface of the casing body 1002 and the mass body 1012, respectively, to impart elastic force to the mass body 1012. The elastic member 1020 may be provided with an elastic body of various forms such as a coil spring or a leaf spring.

이와 같은 진동발생부(1003)는 외부 전원이 전원공급부(1302)을 통해 코일(1010)로 공급되면, 코일(1010)과 영구자석(1006) 간에 발생하는 전자기력에 의해 탄성부재(1020)에 탄성적으로 지지된 진동유닛(1100)이 일정한 공진주파수로 왕복 운동함으로써 진동을 발생시킨다. 이때, 영구자석(1006)은 코일(1010)의 유동개구(1022)에 대해 상대적으로 비접촉 왕복 이동한다. When the vibration generator 1003 is supplied to the coil 1010 through the power supply 1302, the vibration generator 1003 is burnt to the elastic member 1020 by the electromagnetic force generated between the coil 1010 and the permanent magnet 1006. The sexually supported vibration unit 1100 reciprocates at a constant resonance frequency to generate vibration. At this time, the permanent magnet 1006 is relatively non-contact reciprocating movement relative to the flow opening 1022 of the coil 1010.

전원공급부(1302)는 도 12에 도시된 바와 같이, 영구자석(1006)의 둘레 일부 영역에 대응하는 위치와 코일(1010)의 유동개구(1022) 외측 영역에 대응하는 위치에 마련되어 코일(1010)과 외부 전원을 연결한다. 이를 위해서 전원공급부(1302)는 코일(1010)과 연결되는 코일접속부(1303)와, 외부 전원과 연결되는 전원접속부(1304)와, 코일접속부(1303)와 전원접속부(1304)를 연결하는 주회로기판(1306)이 일체로 형성된 구조를 가질 수 있다.As shown in FIG. 12, the power supply unit 1302 is provided at a position corresponding to a partial region of the circumference of the permanent magnet 1006 and at a position corresponding to an outer region of the flow opening 1022 of the coil 1010. And external power supply. To this end, the power supply unit 1302 includes a coil connection unit 1303 connected to the coil 1010, a power connection unit 1304 connected to an external power source, and a main circuit connecting the coil connection unit 1303 and the power connection unit 1304 to each other. The substrate 1306 may have a structure integrally formed.

코일접속부(1303)는 전술한 바와 같이, 질량체(1012)의 단자결합부(1040)에 결합된 상태에서 코일(1010)로부터 연장된 리드선(미도시)과 전기적으로 연결될 수 있다. 이 코일접속부(1303)는 코일접속단자로 마련될 수 있다. As described above, the coil connection unit 1303 may be electrically connected to a lead wire (not shown) extending from the coil 1010 while being coupled to the terminal coupling unit 1040 of the mass body 1012. The coil connecting portion 1303 may be provided as a coil connecting terminal.

전원접속부(1304)는 전술한 바와 같이, 브라켓(1004)의 단자결합편(1038)에 결합된 상태에서 외부 전원과 연결된다. 이 전원접속부(1304)는 전원접속단자로 마련될 수 있다. 또한, 전원접속부(1304)는 케이싱(1001) 또는 브라켓(1004)의 단자결합편(1038)에 대한 견고한 고정을 위해 케이싱 고정구조(미도시)를 가질 수 있다. 케이싱 고정구조(미도시)는 케이싱(1001) 또는 브라켓(1004)의 단자결합편(1038)과 전원접속부(1304)에 형성되어 상호 결합되는 고정 돌기와 고정 홀일 수 있다. As described above, the power supply connection unit 1304 is connected to an external power source in a state of being coupled to the terminal coupling piece 1038 of the bracket 1004. The power connection 1304 may be provided as a power connection terminal. In addition, the power supply connection unit 1304 may have a casing fixing structure (not shown) for firm fixing to the terminal coupling piece 1038 of the casing 1001 or the bracket 1004. The casing fixing structure (not shown) may be a fixing protrusion and a fixing hole formed at the terminal coupling piece 1038 and the power connection 1304 of the casing 1001 or the bracket 1004 and coupled to each other.

전원공급부(1302)는 코일접속부(1303)와 전원접속부(1304)의 구조를 생략하고 주회로기판(1306)의 구조만으로 이루어질 수 있음은 물론이다. 이때, 전원공급부(1302)의 양단부가 직접 코일(1010)과 외부 전원에 연결될 수 있다. The power supply unit 1302 may omit the structures of the coil connection unit 1303 and the power connection unit 1304 and may be formed of only the structure of the main circuit board 1306. In this case, both ends of the power supply unit 1302 may be directly connected to the coil 1010 and an external power source.

전원공급부(1302)은 도 13 내지 도 16에 도시된 바와 같이, 주회로기판(1306)이 만곡된 부분원호 형상을 가지면서 길이방향의 복수 영역에 굴곡부(1308a 내지 1308d)가 형성되어 있는 구조를 가질 수 있다. 이때 굴곡부(1308)는 주회로기판(1306)의 폭 방향 양 측을 향해 교호적인 부분 원호형상으로 굴곡된 S자 형태일 수 있다. 또한 굴곡부(1308)는 도시하지 않았지만 주회로기판(1306)의 폭 방향 일측으로만 부분 원호형상으로 굴곡된 형태일 수도 있다. 또한 굴곡부(1308)는 주회로기판(1306)의 폭 방향 양 측을 향해 교호적으로 굴곡된 자 형태일 수 있다. 이때, 굴곡부(1308)는 다양한 다각형상으로 굴곡된 형태일 수 있으며, 도시하지 않았지만 굴곡부(1308)가 주회로기판(1306)의 폭 방향 일측으로만 다각형상으로 굴곡된 형태일 수도 있다. As shown in FIGS. 13 to 16, the power supply unit 1302 has a structure in which the bent portions 1308a to 1308d are formed in a plurality of longitudinal regions while the main circuit board 1306 has a curved partial arc shape. Can have At this time, the bent portion 1308 may have an S-shape that is bent in an alternating partial arc shape toward both sides in the width direction of the main circuit board 1306. In addition, although not shown, the curved portion 1308 may be bent in a partial arc shape only to one side in the width direction of the main circuit board 1306. In addition, the bent portion 1308 may have a shape of a child alternately curved toward both sides of the main circuit board 1306 in the width direction. In this case, the bent part 1308 may be bent in various polygonal shapes. Although not shown, the bent part 1308 may be bent in a polygonal shape only to one side in the width direction of the main circuit board 1306.

이러한 구조의 전원공급부(1302)은 도 12에 가상선으로 도시된 바와 같이, 질량체(1012)의 상하 왕복 운동시 복수의 굴곡부(1308)가 탄성적으로 수축 및 팽창되는 완충작용이 이루어진다. 이러한 완충 작용은 전원공급부(1302)를 구성하는 연성회로기판의 연성 성질에 기인한다. As shown in the phantom line in FIG. 12, the power supply unit 1302 having such a structure has a buffering action in which the plurality of bends 1308 are elastically contracted and expanded during vertical reciprocation of the mass 1012. This buffering action is due to the flexibility of the flexible circuit board constituting the power supply 1302.

이와 같은, 주회로기판(1306)의 구조 역시, 케이싱(1001) 내부의 협소한 부품 수용 공간 내에서 전원공급부(1302)가 차지하는 공간을 최소화하면서 진동유닛(1100)의 왕복 운동 폭에 충분히 대응할 수 있는 길이와 완충작용을 확보할 수 있도록 한다. 이에 의해, 전원공급부(1302)의 단선을 방지하고 선형 진동자(1000)의 수명을 연장할 수 있다.As such, the structure of the main circuit board 1306 may also sufficiently correspond to the reciprocating movement width of the vibration unit 1100 while minimizing a space occupied by the power supply unit 1302 in the narrow part accommodating space inside the casing 1001. To ensure length and cushioning. As a result, disconnection of the power supply unit 1302 can be prevented and the life of the linear vibrator 1000 can be extended.

또한, 만곡된 부분 원호 형상을 가지면서 복수의 굴곡부(1308)를 갖는 주회로기판(1306)의 구조에 의해 전원공급부(1302)를 영구자석(1006)의 둘레 일부 영역 및 코일(1010)의 유동개구(1022) 외측 영역에 대응하는 위치에 배치할 수 있으므로, 진동유닛(1100)과 영구자석(1006)에 대한 전원공급부(1302)의 간섭을 충분히 회피할 수 있다. 이에 의해, 진동유닛(1100)의 왕복 운동 폭을 케이싱(1001) 내부 상하 방향으로 최대한 확보할 수 있다. 즉, 영구자석(1006)의 자유단부(도면상의 영구자석 상단부)가 코일(1010)의 유동개구(1022)를 관통하는 범위까지 진동유닛(1100)의 왕복 운동 폭이 확대될 수 있는 것이다. 따라서, 선형 진동자(1000)의 두께를 슬림화하면서 충분한 진동력을 확보할 수 있다.In addition, by the structure of the main circuit board 1306 having a curved partial arc shape and having a plurality of bends 1308, the power supply unit 1302 is moved around the partial region of the permanent magnet 1006 and the coil 1010. Since it can be disposed at a position corresponding to the area outside the opening 1022, the interference of the power supply unit 1302 with respect to the vibration unit 1100 and the permanent magnet 1006 can be sufficiently avoided. As a result, the reciprocating movement width of the vibration unit 1100 can be secured to the maximum in the vertical direction inside the casing 1001. That is, the width of the reciprocating motion of the vibration unit 1100 can be extended to the extent that the free end of the permanent magnet 1006 (the upper end of the permanent magnet on the drawing) passes through the flow opening 1022 of the coil 1010. Therefore, while reducing the thickness of the linear vibrator 1000, it is possible to ensure a sufficient vibration force.

한편, 전술한 다양한 형태의 연성회로기판은 도시하지 않았지만, 주회로기판의 일부 구간의 두께 또는 폭이 타 구간과 상이할 수 있다. 이는 운동체의 왕복 운동시 주회로기판에 전달되는 힘을 분산시키기 위한 구조로서, 코일접속부(1303)에 인접한 영역이나 전원접속부(1304)에 인접한 영역 또는 굴곡부(1308)에 인접한 영역의 두께 또는 폭이 타구간보다 크게 형성될 수도 있다. On the other hand, although the above-described various types of flexible printed circuit boards are not shown, the thickness or width of some sections of the main circuit board may be different from the other sections. This is a structure for distributing the force transmitted to the main circuit board during the reciprocating motion of the moving object, the thickness or width of the region adjacent to the coil connection portion 1303, the region adjacent to the power connection portion 1304, or the region adjacent to the bent portion 1308 It may be formed larger than the other section.

도 17은 본 발명의 또 다른 실시예에 따른 선형 진동자의 개략적인 분해 사시도이고, 도 18은 도 17의 선형 진동자의 단면도이다. 전원공급부(1016)는 평면에서 보았을 때, 주회로기판(1200)의 구조에 의해서 전체적으로 만곡된 부분 원호형상을 가질 수 있는데, 주회로기판(1200)의 길이방향으로 적어도 일부 영역에 굴곡부가 형성되어 있는 범위에서 다양한 형태를 가질 수 있다.17 is a schematic exploded perspective view of a linear vibrator according to still another embodiment of the present invention, and FIG. 18 is a cross-sectional view of the linear vibrator of FIG. 17. The power supply unit 1016 may have a partial arc shape that is bent as a whole by the structure of the main circuit board 1200 when viewed in a plan view, and a bent portion is formed in at least a partial region in the longitudinal direction of the main circuit board 1200. It may have various forms in the range.

먼저, 도 19 및 도 20에 도시된 바와 같이, 전원공급부(1016)은 주회로기판(1200)이 만곡된 부분 원호 형상을 가지면서 U자 형상을 가질 수 있다. 즉, 주회로기판(1200)의 길이방향의 중간 부분에 하나의 굴곡부(1204)가 U자로 형성된 구조일 수 있다. 이때, 주회로기판(1200)의 인접한 양 단부에 코일접속부(1208)와 전원접속부(1210)가 형성될 수 있다. First, as illustrated in FIGS. 19 and 20, the power supply unit 1016 may have a U-shape while the main circuit board 1200 has a curved partial arc shape. That is, one bent portion 1204 may be formed in a U-shape in the middle portion of the main circuit board 1200 in the longitudinal direction. In this case, the coil connecting unit 1208 and the power connecting unit 1210 may be formed at both adjacent ends of the main circuit board 1200.

이러한 U자 형상의 주회로기판(1200)은 굴곡부(1204) 양측에 상호 평행하게 만곡된 제1통전부(1202)와 제2통전부(1206)를 갖는 구조로서, 질량체(1012)의 상하 왕복 운동시 도 19 및 도 20에 도시된 바와 같이, 제1 통전부(1202)와 제2 통전부(1206)가 굴곡부(1204)를 기준으로 상하 방향으로 상호 접근 및 이격되는 완충작용이 이루어진다. 이러한 완충 작용은 전원공급부(1016)를 구성하는 연성회로기판의 연성 성질에 기인한다. 이와 같은, 주회로기판(1200)의 구조는 케이싱(1001) 내부의 협소한 부품 수용 공간 내에서 전원공급부(1016)이 차지하는 공간을 최소화하면서 진동유닛(1100)의 왕복 운동 폭에 충분히 대응할 수 있는 길이와 완충작용을 확보할 수 있도록 한다. 이에 의해, 전원공급부(1016)의 단선을 방지하고 선형 진동자(1000)의 수명을 연장할 수 있다. The U-shaped main circuit board 1200 has a structure having a first conducting portion 1202 and a second conducting portion 1206 curved in parallel to both sides of the bent portion 1204 and vertically reciprocating the mass body 1012. As shown in FIGS. 19 and 20, the first conducting unit 1202 and the second conducting unit 1206 may be buffered to each other in a vertical direction with respect to the bent portion 1204. This buffering action is due to the flexibility of the flexible circuit board constituting the power supply 1016. As such, the structure of the main circuit board 1200 can sufficiently cope with the reciprocating movement width of the vibration unit 1100 while minimizing the space occupied by the power supply unit 1016 in the narrow part accommodating space inside the casing 1001. Ensure length and cushioning. As a result, disconnection of the power supply unit 1016 can be prevented and the life of the linear vibrator 1000 can be extended.

또한, 주회로기판(1200)의 구조에 의해 전원공급부(1016)를 영구자석(1006)의 둘레 일부 영역 및 코일(1010)의 유동개구(1022) 외측 영역에 대응하는 위치에 배치할 수 있으므로, 진동유닛(1100)과 영구자석(1006)에 대한 전원공급부(1016)의 간섭을 충분히 회피할 수 있다. 이에 의해, 진동유닛(1100)의 왕복 운동 폭을 케이싱(1001) 내부 상하 방향으로 최대한 확보할 수 있다. 즉, 영구자석(1006)의 자유단부(도면상의 영구자석 상단부)가 코일(1010)의 유동개구(1022)를 관통하는 범위까지 진동유닛(1100)의 왕복 운동 폭이 확대될 수 있는 것이다. 따라서, 선형 진동자(1000)의 두께를 슬림화하면서 충분한 진동력을 확보할 수 있다. In addition, the structure of the main circuit board 1200 allows the power supply unit 1016 to be disposed at a position corresponding to a partial area around the periphery of the permanent magnet 1006 and an area outside the flow opening 1022 of the coil 1010. The interference of the power supply unit 1016 with respect to the vibration unit 1100 and the permanent magnet 1006 can be sufficiently avoided. As a result, the reciprocating movement width of the vibration unit 1100 can be secured to the maximum in the vertical direction inside the casing 1001. That is, the width of the reciprocating motion of the vibration unit 1100 can be extended to the extent that the free end of the permanent magnet 1006 (the upper end of the permanent magnet on the drawing) passes through the flow opening 1022 of the coil 1010. Therefore, while reducing the thickness of the linear vibrator 1000, it is possible to ensure a sufficient vibration force.

도 19 및 도 20는 도 17에 도시된 실시예의 전원공급부(1016)의 평면도이다. 전원공급부(1016)는 내측에 제1 통전부(1202)를 두고, 코일접속부(1208)에서 제1 통전부(1202)를 거쳐 "U"자 형상 굴곡부(1204)을 지나 제2 통전부(1206)와 연결된다. 제2 통전부(1206)는 전원접속부(1210)에 연결되어 외부 전원에 연결된다. 전원공급부(1016)는 통상 연성회로기판으로 형성함으로써 탄성력을 이용하여 진동과 충격에 잘 견디도록 한다. 또한 코일접속부(1208)와 전원접속부(1210) 사이를 길게 하여 외부 진동이나 충격을 완충하면서도 주어진 공간 내에서 전원공급부(1016)가 차지하는 공간을 최소화한다. 이로써 좁은 공간 내에서 질량체(1012)가 상하로 오랜 시간 동안 움직이더라도 전원공급부(1016)에 손상이 가지 않고 안정된 품질의 전원공급부(1016)를 구현할 수 있다. 19 and 20 are plan views of the power supply 1016 of the embodiment shown in FIG. The power supply unit 1016 has a first conducting unit 1202 therein, and passes from the coil connecting unit 1208 to the first conducting unit 1202 through the “U” -shaped bend 1204 to the second conducting unit 1206. ). The second energizing unit 1206 is connected to the power connection unit 1210 is connected to an external power source. The power supply unit 1016 is usually formed of a flexible circuit board so as to withstand vibration and shock well by using elastic force. In addition, by lengthening the coil connecting portion 1208 and the power connecting portion 1210 to minimize the space occupied by the power supply unit 1016 in a given space to cushion the external vibration or shock. As a result, even if the mass 1012 moves up and down for a long time in a narrow space, the power supply 1016 may be implemented without damaging the power supply 1016.

도 19 및 도 20에 도시된 실시예에서는 전원공급부(1016)의 연성을 좋게 하기 위해 제1 통전부(1202)와 제2 통전부(1206)의 폭을 줄이고, 폭을 줄이는 대신 전원이 연결되는 동박 패턴을 양면으로 구성한다. 본 실시예에서 양면은 통전 구멍(1212)을 통해 통전될 수 있다.19 and 20 reduce the width of the first conducting unit 1202 and the second conducting unit 1206 in order to improve the ductility of the power supply unit 1016, the power is connected instead of reducing the width The copper foil pattern is comprised on both sides. In this embodiment, both surfaces may be energized through the conduction hole 1212.

도 21은 본 발명의 또 다른 실시예에 따른 전원공급부와 질량체의 조립도이다. 도 21에 도시된 바와 같이 전원공급부(1702)는 통상 질량체(1706)의 전원공급부 고정부(1704)에 코일접속부(1708)의 일부가 고정된다. 만일 전원공급부(1702)가 원형으로 되어 있으면 상당히 많은 공간의 질량체(1706)를 없애고 전원공급부 고정부(1704)를 만들어야 한다. 예를 들어, 360도 공간에 질량체(1706)의 일부를 없애고 전원공급부 고정부(1704)를 설치하여야 한다. 도 21의 (b)는 질량체(1706) 공간을 360도를 없애는 경우를 도시하고 있다. 그러나 도 21의 (a)에 도시된 바와 같이 "B"로 표기된 부분에는 전원공급부 고정부(1704)가 필요하지 않아 질량체(1706)에 홈을 내지 않고 그대로 사용하므로써 질량체(1706)의 무게를 증가시켜 진동력을 크게 할 수 있다. 특히 소형 진동자의 경우에는 이에 따른 진동력 커짐의 효과가 크다.21 is an assembly view of the power supply unit and the mass according to another embodiment of the present invention. As shown in FIG. 21, in the power supply unit 1702, a part of the coil connection unit 1708 is fixed to the power supply unit fixing unit 1704 of the mass 1706. If the power supply 1702 is circular, it is necessary to eliminate the mass 1706 of a considerable amount of space and make the power supply fixing part 1704. For example, part of the mass 1706 must be removed in the 360 degree space and the power supply fixing part 1704 should be installed. FIG. 21B illustrates a case where the space of the mass body 1706 is eliminated 360 degrees. However, as shown in (a) of FIG. 21, the portion marked with "B" does not need the power supply fixing part 1704, so that the weight of the mass 1706 is increased by using the mass 1706 as it is without making a groove. To increase the vibration force. In particular, in the case of a small vibrator, the effect of increasing the vibration force is large.

도 22은 본 발명의 또 다른 실시예에 따른 전원공급부와 질량체의 조립도이다. 도 18에 도시된 바와 같이, 댐퍼(1018)는 질량체(1012)와 케이스(1002)의 사이 또는 질량체(1012)와 브라켓(1004)의 사이에 배치되며 댐퍼(1018)의 두께로 인해 공간을 필요로 함으로써 진동자의 두께를 줄이는데 한계가 있다. 그러나 도 22에 도시된 바와 같이 360도 공간에 질량체(1802)의 일부를 없애고 전원공급부 고정부(1804)를 설치하되 일부에는 전원공급부(1806)를 배치하고 나머지 공간에는 댐퍼(1808)를 부착함으로써 댐퍼로 인해 생기는 질량체(1802)와 케이스 사이 또는 질량체(1802)와 브라켓 사이의 공간을 최대한으로 사용할 수 있다. 즉, 공간 효율을 극대화할 수 있다.22 is an assembly view of the power supply unit and the mass according to another embodiment of the present invention. As shown in FIG. 18, the damper 1018 is disposed between the mass 1012 and the case 1002 or between the mass 1012 and the bracket 1004 and requires space due to the thickness of the damper 1018. There is a limit in reducing the thickness of the vibrator. However, as shown in FIG. 22, by removing a part of the mass 1802 in a 360 degree space and installing a power supply fixing part 1804, a power supply 1806 is disposed in a part and a damper 1808 is attached to the remaining space. The space between the mass 1802 and the case or the mass 1802 and the bracket generated by the damper can be used to the maximum. That is, space efficiency can be maximized.

도 23는 본 발명의 또 다른 실시예에 따른 선형 진동자의 조립도이다. 도 23(a)는 단면도이고, 도 23(b)는 평면도이며, 도 23(c)는 전원공급부 고정부의 확대 단면도이다. 본 실시예에서는 전원공급부(1902)의 일부가 코일(1903)에 부착되어 있고, 전원공급부(1902)의 다른 일부가 영구자석(1904)의 외주면을 감싸지 않고 영구자석(1904)의 바닥면을 일부 마주보고 배치된 경우이다. 진동자의 직경이나 높이가 한정되어 있는 경우 높은 진동력을 내기 위해서는 본 실시예와 같이 질량체(1906)에서 전원공급부 고정부를 없앰으로써 질량체(1906)의 무게를 극대화 할 수 있다. 다만 이 때에는 낙하나 충격 등에 의해 영구자석(1904)와 전원공급부(1902)가 충돌하여 불량이 발생하는 것을 막기 위해 영구자석(1904)의 높이를 작게 하거나 질량체(1906)와 케이스(1908) 사이 또는 질량체(1906)와 브라켓(1910) 사이의 이동거리를 제한하여 배치할 수 있다.23 is an assembly view of a linear vibrator according to another embodiment of the present invention. FIG. 23A is a sectional view, FIG. 23B is a plan view, and FIG. 23C is an enlarged sectional view of a power supply fixing part. In this embodiment, a part of the power supply unit 1902 is attached to the coil 1901, and another part of the power supply unit 1902 does not cover the outer circumferential surface of the permanent magnet 1904, but partially covers the bottom surface of the permanent magnet 1904. It is placed facing each other. When the diameter or height of the vibrator is limited, the weight of the mass 1906 may be maximized by removing the power supply unit fixing part from the mass 1906 in order to give a high vibration force. In this case, in order to prevent the permanent magnet 1904 and the power supply unit 1902 from colliding due to falling or impact, the height of the permanent magnet 1904 is reduced, or between the mass body 1906 and the case 1908, or The movement distance between the mass 1906 and the bracket 1910 may be limited.

도 24은 전원공급부의 기판 배치도이다. 도 24의 (a)는 전원공급부가 원형이면서 내부 구멍이 있는 경우이고, 도 24의 (b)는 위 실시예와 같이 전원공급부가 "U"자 형상 굴곡부(1202)를 가진 경우이다. 도 24으로부터 알 수 있는 바와 같이, 전원공급부를 연성회로기판으로 양산하는 경우 "U"자 형상 굴곡부(1202)를 가진 전원공급부가 주어진 면적에서 생산 수율이 높아 경제적으로 훨씬 유리함을 알 수 있다. 24 is a layout view of a board of a power supply unit. FIG. 24A illustrates a case in which the power supply unit has a circular shape and an inner hole, and FIG. 24B illustrates a case in which the power supply unit has a “U” shaped bend 1202 as in the above embodiment. As can be seen from Figure 24, when the power supply is mass-produced with a flexible circuit board, it can be seen that the power supply having a "U" shaped bent portion 1202 has a high production yield in a given area, which is economically much more advantageous.

도 25은 본 발명의 일 실시예에 따른 "U"자 형상 굴곡부의 각도이다. 도 25에 도시된 바와 같이 "U"자 형상 굴곡부(2102)에서 제1 통전부(2104)와 제2 통전부(2106)가 만나는 각도 "a"는 최대 90도 이하가 바람직하다. "a"의 각도가 90도를 넘는 경우는 이 때는 품질 문제, 재료비 감소로 인한 원가 경쟁력 문제, 질량 감소 문제 등이 생길 수 있어서 효과가 감소한다.25 is an angle of the "U" shaped bend according to an embodiment of the present invention. As shown in FIG. 25, the angle “a” at which the first conducting portion 2104 and the second conducting portion 2106 meet at the “U” -shaped bend portion 2102 is preferably 90 degrees or less at most. If the angle of "a" exceeds 90 degrees, this may cause quality problems, cost competitiveness problems due to reduced material costs, and mass reduction problems.

Claims (19)

선형 진동자에 있어서,In the linear vibrator, 내부에 공간을 가지는 케이스와,Case with space inside, 상기 케이스와 마주보고 배치된 브라켓과,A bracket disposed facing the case, 상기 케이스 또는 브라켓에 고정된 영구자석과,A permanent magnet fixed to the case or bracket, 상기 영구자석의 주위에 배치되는 코일과,A coil disposed around the permanent magnet, 상기 코일에 고정되는 코일지지부재와,A coil support member fixed to the coil; 상기 코일지지부재에 일단이 고정되고 상기 브라켓에 다른 일단이 고정되며 외부 전원을 상기 코일에 제공하는 전원공급부와,A power supply unit having one end fixed to the coil support member and the other end fixed to the bracket, and providing external power to the coil; 상기 케이스 또는 브라켓에 일단이 고정되고 상기 코일지지부재에 타단이 고정되며 상기 코일지지부재의 운동을 지지하는 탄성 부재를 포함하며,One end is fixed to the case or bracket and the other end is fixed to the coil support member and includes an elastic member for supporting the movement of the coil support member, 상기 전원공급부를 통해 외부 전원이 인가될 때 상기 코일과 상기 영구자석 사이에 발생하는 전자기력과 상기 탄성 부재의 탄성에 의해 상기 코일지지부재가 상기 케이스의 내부 공간에서 선형 운동하고,When the external power is applied through the power supply unit, the coil support member linearly moves in the inner space of the case by the elastic force of the elastic member and the electromagnetic force generated between the coil and the permanent magnet, 상기 브라켓과 상기 전원공급부는 돌기 및 홈의 결합에 의해 고정되는 것을 특징으로 하는 선형 진동자. The bracket and the power supply unit linear oscillator, characterized in that fixed by the combination of the projection and the groove. 제 1 항에 있어서,The method of claim 1, 상기 전원공급부의 표면은 니켈, 아연, 주석, 동 중에서 적어도 하나로 도금되는 것을 특징으로 하는 선형 진동자. Linear oscillator, characterized in that the surface of the power supply is plated with at least one of nickel, zinc, tin, copper. 제 2 항에 있어서,The method of claim 2, 상기 전원공급부 표면의 도금은 본드나 납이 잘 스며들 수 있도록 도금 패턴을 구비하는 것을 특징으로 하는 선형 진동자. The plating of the surface of the power supply unit is characterized in that the linear vibrator having a plating pattern so that the bond or lead is well penetrated. 제 1 항에 있어서,The method of claim 1, 상기 브라켓의 표면은 니켈, 아연, 주석, 동 중 적어도 하나로 도금되는 것을 특징으로 하는 선형 진동자. The surface of the bracket is a linear vibrator, characterized in that plated with at least one of nickel, zinc, tin, copper. 제 1 항에 있어서,The method of claim 1, 상기 브라켓은 홈을 구비하며, The bracket has a groove, 상기 브라켓은 상기 브라켓 홈을 통해 주입된 본드 또는 납을 통해 상기 전원공급부와 고정되는 것을 특징으로 하는 선형 진동자. The bracket is a linear vibrator, characterized in that fixed to the power supply through a bond or lead injected through the bracket groove. 선형 진동자에 있어서,In the linear vibrator, 내부에 공간을 가지는 케이스와,Case with space inside, 상기 케이스와 마주보고 배치된 브라켓과,A bracket disposed facing the case, 상기 케이스 또는 브라켓에 고정된 영구자석과,A permanent magnet fixed to the case or bracket, 상기 영구자석의 주위에 배치되는 코일과,A coil disposed around the permanent magnet, 상기 코일에 고정되는 코일지지부재와,A coil support member fixed to the coil; 상기 코일지지부재에 일단이 고정되고 상기 브라켓에 다른 일단이 고정되며 외부 전원을 상기 코일에 제공하는 전원공급부와,A power supply unit having one end fixed to the coil support member and the other end fixed to the bracket, and providing external power to the coil; 상기 케이스 또는 브라켓에 일단이 고정되고 상기 코일지지부재에 타단이 고정되며 상기 코일지지부재의 운동을 지지하는 탄성 부재를 포함하며,One end is fixed to the case or bracket and the other end is fixed to the coil support member and includes an elastic member for supporting the movement of the coil support member, 상기 전원공급부를 통해 외부 전원이 인가될 때 상기 코일과 상기 영구자석 사이에 발생하는 전자기력과 상기 탄성 부재의 탄성에 의해 상기 코일지지부재가 선형 운동하고,When the external power is applied through the power supply unit, the coil support member linearly moves by the elastic force of the elastic member and the electromagnetic force generated between the coil and the permanent magnet, 상기 전원공급부는 측면에 돌기 또는 홈을 구비하는 것을 특징으로 하는 선형 진동자.The power supply unit linear oscillator, characterized in that provided with a protrusion or groove on the side. 제 6 항에 있어서,The method of claim 6, 상기 전원공급부의 일 측면에는 돌기가 형성되고 다른 측면에는 상기 돌기와 대향하는 홈이 형성되는 것을 특징으로 하는 선형 진동자.A protrusion is formed on one side of the power supply unit and a groove is formed on the other side facing the protrusion. 제 6 항에 있어서,The method of claim 6, 상기 전원공급부는 내측에 전원 공급 방향과 동일한 방향의 구멍을 구비하는 것을 특징으로 하는 선형 진동자.And the power supply unit has a hole in the same direction as the power supply direction. 선형 진동자에 있어서,In the linear vibrator, 내부에 공간을 가지는 케이스와,Case with space inside, 상기 케이스와 마주보고 배치된 브라켓과,A bracket disposed facing the case, 상기 케이스 또는 브라켓에 고정된 영구자석과,A permanent magnet fixed to the case or bracket, 상기 영구자석의 주위에 배치되는 코일과,A coil disposed around the permanent magnet, 상기 코일에 고정되는 코일지지부재와,A coil support member fixed to the coil; 상기 코일지지부재에 일단이 고정되고 상기 브라켓에 다른 일단이 고정되며 외부 전원을 상기 코일에 제공하는 전원공급부와,A power supply unit having one end fixed to the coil support member and the other end fixed to the bracket, and providing external power to the coil; 상기 케이스 또는 브라켓에 일단이 고정되고 상기 코일지지부재에 타단이 고정되며 상기 코일지지부재의 운동을 지지하는 탄성 부재를 포함하며,One end is fixed to the case or bracket and the other end is fixed to the coil support member and includes an elastic member for supporting the movement of the coil support member, 상기 전원공급부를 통해 외부 전원이 인가될 때 상기 코일과 상기 영구자석 사이에 발생하는 전자기력과 상기 탄성 부재의 탄성에 의해 상기 코일지지부재가 선형 운동하고,When the external power is applied through the power supply unit, the coil support member linearly moves due to the electromagnetic force generated between the coil and the permanent magnet and the elasticity of the elastic member. 상기 전원공급부는 일부 영역에서 측면에 굴곡부를 구비하는 것을 특징으로 하는 선형 진동자. The power supply unit linear oscillator, characterized in that the bent portion on the side in some areas. 제 9 항에 있어서,The method of claim 9, 상기 전원공급부는 제1 통전부와 제2 통전부로 구성되며, 상기 제1 통전부와 제2 통전부는 "U"자 형상 굴곡부에 의해 연결되는 것을 특징으로 하는 선형 진동자. The power supply unit comprises a first conducting unit and a second conducting unit, the first conducting unit and the second conducting unit is a linear vibrator, characterized in that connected by the "U" shaped bend. 제 10 항에 있어서,The method of claim 10, 상기 전원공급부의 제1 통전부 또는 제2 통전부는 적어도 일부가 상기 영구자석과 대향하여 배치되는 것을 특징으로 하는 선형 진동자.And at least a part of the first conducting unit or the second conducting unit of the power supply unit is disposed to face the permanent magnet. 제 9 항에 있어서,The method of claim 9, 상기 전원공급부는 연성회로기판으로 형성된 것을 특징으로 하는 선형 진동자.The power supply unit linear oscillator, characterized in that formed of a flexible circuit board. 제 12 항에 있어서,The method of claim 12, 상기 전원공급부는 양면 패턴을 사용하는 기판으로 형성된 것을 특징으로 하는 선형 진동자.The power supply unit linear oscillator, characterized in that formed with a substrate using a double-sided pattern. 제 9 항에 있어서, The method of claim 9, 상기 전원공급부는 상기 코일과 연결되는 코일접속부와, 상기 외부 전원과 연결되는 전원공급부와, 상기 코일접속부와 상기 전원공급부를 연결하며 적어도 일부 영역에서 측면에 굴곡부가 형성된 주회로기판을 구비하는 것을 특징으로 하는 선형 진동자. The power supply unit includes a coil connection unit connected to the coil, a power supply unit connected to the external power source, and a main circuit board connecting the coil connection unit and the power supply unit and having a bent portion on at least part of the region. Linear oscillator made with. 제 14 항에 있어서, The method of claim 14, 상기 주회로기판은 만곡된 U자 형상을 갖는 것을 특징으로 하는 선형 진동자. The main circuit board is a linear vibrator, characterized in that having a curved U-shape. 제 14 항에 있어서, The method of claim 14, 상기 주회로기판은 만곡된 형상을 가지며, 복수의 굴곡부를 구비하는 것을 특징으로 하는 선형 진동자. The main circuit board has a curved shape and has a plurality of bent portions. 제 16 항에 있어서, The method of claim 16, 상기 굴곡부는 다각 형상 또는 부분 원호 형상으로 굴곡되는 것을 특징으로 하는 선형 진동자. And said bent portion is bent in a polygonal shape or a partial arc shape. 제 14 항에 있어서, The method of claim 14, 상기 주회로기판은 일부 구간에서 두께가 상이한 것을 특징으로 하는 선형 진동자. The main circuit board is a linear vibrator, characterized in that the thickness is different in some section. 제 14 항에 있어서, The method of claim 14, 상기 주회로기판은 일부 구간에서 폭이 상이한 것을 특징으로 하는 선형 진동자. The main circuit board is a linear vibrator, characterized in that the width is different in some section.
PCT/KR2012/006838 2011-08-27 2012-08-27 Linear oscillator Ceased WO2013032204A2 (en)

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Application Number Priority Date Filing Date Title
KR10-2011-0086129 2011-08-27
KR1020110086129A KR20130022997A (en) 2011-08-27 2011-08-27 Input board mounting structure
KR20110089314 2011-09-03
KR10-2011-0089314 2011-09-03
KR10-2011-0108392 2011-10-21
KR20110108392 2011-10-21
KR10-2011-0117485 2011-11-11
KR10-2011-0117484 2011-11-11
KR20110117485 2011-11-11
KR1020110117484A KR101141726B1 (en) 2011-09-03 2011-11-11 Fpcb for linear vibrator and linear vibrator having the same

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CN111934514A (en) * 2019-09-18 2020-11-13 威海永柏微电机有限公司 Vertical vibrator using upper and lower permanent magnets and magnetic force generation method

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JP4152663B2 (en) * 2002-04-24 2008-09-17 多摩川精機株式会社 Connection board
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KR101238543B1 (en) * 2010-01-06 2013-02-28 엘지이노텍 주식회사 Linear vibrator
KR101046044B1 (en) * 2010-10-04 2011-07-01 삼성전기주식회사 Linear oscillator
KR101046003B1 (en) * 2010-11-17 2011-07-04 삼성전기주식회사 Linear oscillator

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111934514A (en) * 2019-09-18 2020-11-13 威海永柏微电机有限公司 Vertical vibrator using upper and lower permanent magnets and magnetic force generation method

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