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WO2012042675A1 - Dispositif à haut-parleur - Google Patents

Dispositif à haut-parleur Download PDF

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Publication number
WO2012042675A1
WO2012042675A1 PCT/JP2010/067289 JP2010067289W WO2012042675A1 WO 2012042675 A1 WO2012042675 A1 WO 2012042675A1 JP 2010067289 W JP2010067289 W JP 2010067289W WO 2012042675 A1 WO2012042675 A1 WO 2012042675A1
Authority
WO
WIPO (PCT)
Prior art keywords
diaphragm
speaker
voice coil
vibration direction
frame
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/JP2010/067289
Other languages
English (en)
Japanese (ja)
Inventor
健一 大嶋
道郎 松田
高橋　敏晴
拓栄 長澤
実 堀米
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.)
Tohoku Pioneer Corp
Pioneer Corp
Original Assignee
Tohoku Pioneer Corp
Pioneer Corp
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
Application filed by Tohoku Pioneer Corp, Pioneer Corp filed Critical Tohoku Pioneer Corp
Priority to PCT/JP2010/067289 priority Critical patent/WO2012042675A1/fr
Publication of WO2012042675A1 publication Critical patent/WO2012042675A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers
    • H04R9/063—Loudspeakers using a plurality of acoustic drivers

Definitions

  • the present invention relates to a speaker device.
  • Patent Document 1 a yoke, a magnet, a plate, and a frame constituting a magnetic circuit are stacked, and then an epoxy or acrylic resin is formed in a gap formed between the yoke, the magnet, the plate, the lower end of the frame, and a plunge.
  • a speaker unit is described in which each member is fixed to each other by injecting a system adhesive and fixing the yoke, magnet and plate and the peripheral surface of the frame to the inner surface of the flange at the lower end of the frame. .
  • Conventional speaker devices are generally manufactured by joining a plurality of constituent members with an adhesive. For this reason, the hardening time of an adhesive agent may be needed for every joining process of each part. Further, when the constituent members are joined to each other with an adhesive, the adhesive has viscosity until the adhesive is completely cured, and thus the positional relationship between the constituent members joined to each other may be shifted. In order to avoid this, it is necessary to accurately fix the positions of the components to be joined to each other until the adhesive is completely cured, which may lead to complicated processes.
  • the thin speaker device can reduce the installation space of the speaker device in the electronic device, in the vehicle interior, in the house, etc.
  • the electronic device equipped with the speaker device can be thinned and the living space in the room where the speaker device is installed. It is effective in securing.
  • a thinner speaker device is required when the speaker device is installed in a flat panel display that has been spread in recent years, or when the speaker device is attached to a wall surface of a vehicle interior where the living space is limited.
  • a vibrating voice coil and a diaphragm are arranged continuously in the thickness direction of the speaker device. For this reason, there are cases where it is difficult to achieve both reproduction of sound with a large volume by vibrating a voice coil or a diaphragm with a relatively large amplitude (high volume) and thinning of the speaker device.
  • the vibration direction of the voice coil is set to a direction different from the vibration direction of the diaphragm, and the voice coil and the diaphragm are connected via a vibration direction converter having high vibration transmission efficiency. It is possible to achieve both weight reduction and thinning.
  • the vibration direction of the voice coil and the vibration direction of the diaphragm are different, so that vibration along the vibration direction of the voice coil and vibration along the vibration direction of the diaphragm are two.
  • Various types of vibrations are mixed in the speaker device.
  • the fixing force at the joining portion of the plurality of constituent members may be relatively small with respect to the vibration direction of the voice coil.
  • the fixing force at the joint location may be relatively small with respect to the vibration direction of the voice coil even though it is relatively large with respect to the vibration direction of the diaphragm.
  • a relatively large fixing force is required for the joint portion with respect to an external force (shearing force) such as vibration accompanying vibration of the voice coil. If peeling or the like occurs at the joint location, a plurality of constituent members will be displaced along the vibration direction of the voice coil. In addition, a plurality of structural members may collide and generate abnormal noise.
  • the present invention is an example of a problem to deal with such a problem. Eliminating the productivity reduction of the speaker device due to the curing time of the adhesive, eliminating the troublesomeness of fixing the positions of a plurality of components until the adhesive is completely cured in the manufacturing process of the speaker device, It is an object of the present invention that the joint location has a relatively large fixing force against an external force (shearing force) such as vibration accompanying the vibration of the voice coil.
  • the speaker device has at least the following configuration.
  • a driving member that vibrates in a direction different from the vibration of the diaphragm by an audio signal comprising: a diaphragm; a stationary part that supports the diaphragm so as to freely vibrate; and a driving part that applies vibration to the diaphragm.
  • a vibration direction converter that changes the direction of the vibration of the drive member in a direction intersecting the vibration direction of the drive member to vibrate the diaphragm, the diaphragm, the stationary part, and the drive part
  • one of the speaker components includes a protruding portion
  • the other speaker component Comprises a hole into which the protruding portion is inserted, and the protruding portion protrudes along a direction intersecting the vibration direction of the drive member.
  • the top perspective view of the speaker device concerning the embodiment of the present invention is shown.
  • the top perspective view of the speaker device concerning the embodiment of the present invention is shown.
  • it is an explanatory view showing the internal structure of the speaker device (a state in which each part is arranged on the frame and a part of the upper diaphragm frame and a magnetic circuit are removed).
  • FIG. 1 is an explanatory diagram (sectional view) showing the overall configuration of a speaker device according to an embodiment of the present invention.
  • the speaker device 1 includes a stationary part 10, a driving part 20, and a diaphragm 30.
  • the stationary part 10 is a part that is relatively stationary with respect to the vibration of the driving part 20 and the diaphragm 30 and that is a part that supports the diaphragm 30 in a freely oscillating manner.
  • the stationary portion is not intended to be completely stationary.
  • the stationary portion only needs to be stationary to the extent that the diaphragm 30 can be supported, and vibration generated when the speaker device 1 is driven propagates.
  • the vibration may propagate to the entire stationary part.
  • the stationary portion 10 corresponds to a frame, a part of a magnetic circuit, a mounting location where the speaker device 1 is mounted, and the like which will be described later.
  • the drive unit 20 is a part of the speaker device 1 that generates a driving force that vibrates the diaphragm 30.
  • the diaphragm 30 is a part of the speaker device 1 that oscillates by the driving force of the driving unit 20 to emit sound.
  • the stationary part 10 includes a frame (drive part frame) 11 and a diaphragm frame 13.
  • the frame 11 supports the drive unit 20 and is joined to a diaphragm frame 13 that supports the diaphragm 30 in a freely vibrating manner.
  • the drive unit 20 includes a drive member 20A that vibrates in a direction different from the vibration of the vibration plate 30 by an audio signal, and a vibration direction conversion unit 40 that changes the vibration of the drive member 20A to vibrate the vibration plate 30.
  • the driving member 20A can be constituted by a voice coil 21.
  • the voice coil 21 has rigidity along the vibration direction (X-axis direction in the drawing).
  • the voice coil 21 itself has rigidity, or the driving member 20A can be configured by fixing the voice coil 21 to the voice coil support portion 22 having rigidity in the X-axis direction in the drawing.
  • the drive member 20A is not limited to the voice coil 21, and may be a piezoelectric element, a magnetostrictive element, or a shape memory metal (artificial muscle). All the contents described in PCT / JP2009 / 063527 filed internationally on July 29, 2009 are incorporated in this application.
  • the drive member 20A is disposed in the magnetic gap 23G of the magnetic circuit 23, and is supported so as to vibrate along the X-axis direction in the figure.
  • the magnetic circuit 23 includes a yoke 23A, a magnet 23B, and a plate 23C, and is supported by the frame 11.
  • the magnetic circuit 23 includes a yoke 23A having a flat plate portion 23A-1 and a magnet 23B. Both end portions (Y-axis direction) of the flat plate-like portion 23A-1 of the yoke 23A are connected to the frame 11.
  • the magnetic circuit 23 includes a plurality of magnetic gaps 23G arranged side by side along the vibration direction of the voice coil 21, and a plurality of magnetic pole members 23H constituting the magnetic gap 23G.
  • the yoke 23A has a plurality of flat plate portions 23A-1 arranged side by side along the vibration direction of the voice coil 21. Of the plurality of flat plate portions 23A-1, one flat plate portion 23A-1 supports the magnet 23B as the magnetic pole member 23H, and the other flat plate portion 23A-1 is provided at substantially the same height as the magnet 23B.
  • the magnetic pole member 23H is configured.
  • the planar shape of one flat plate portion 23A-1 is a U-shape.
  • One flat plate portion 23A-1 intersects the arm portion 23A-2 and the arm portion 23A-2 along the vibration direction of the voice coil 21 and connects the pair of arm portions 23A-2. Is provided.
  • the arm portion 23A-2 is supported by the frame 11.
  • one flat plate portion 23A-1 supports the magnetic pole member 23H provided on the vibration direction changing portion 40 side with respect to the frame 11.
  • one flat plate-like portion 23A-1 can stably maintain a predetermined interval (magnetic gap) provided between the voice coil 21 and the magnetic pole member 23H.
  • magnets 23 ⁇ / b> B are arranged on both sides of the voice coil 21.
  • the present invention is not limited to this, and one of the pair of magnets 23B may be the plate 23C. In this case, the magnet 23B and the plate 23C constitute the magnetic pole member 23H.
  • the vibration direction converter 40 is provided between the first diaphragm 30-1 and the second diaphragm 30-2 facing each other among the plurality of diaphragms 30.
  • the vibration direction conversion unit 40 connects the first diaphragm 30-1 and the second diaphragm 30-2 and interlocks them so as to be close to or away from each other.
  • a part of the vibration direction changing unit 40 arranged in the vicinity of the stationary unit 10 is supported by the stationary unit 10 so as to be able to vibrate.
  • a part of the vibration direction conversion unit 40 disposed in the vicinity of the drive unit 20 is supported by the drive unit 20 so as to freely vibrate.
  • the vibration direction conversion unit 40 includes a link portion 41 that connects the drive member 20A (the voice coil 21 or the voice coil support portion 22) and the vibration plate 30, and a joint portion 42.
  • the link portion 41 includes a diaphragm connecting portion 44 that is connected to the diaphragm 30.
  • the link portion 41 includes a voice coil connection portion 43 connected to the drive member 20A (voice coil 21 or voice coil support portion 22) and a frame connection portion 45 connected to the stationary portion 10 (frame 11). ing.
  • One link portion 41 is connected to a part of the speaker device 1 via a joint portion 42.
  • the joint part 42 is a part of the vibration direction conversion part 40 that supports or connects the link part 41 to a part of the speaker device 1 so that the angle can be changed.
  • the vibration direction conversion unit 40 as the link portion 41, a first link portion 41-1 disposed between the voice coil 21 and the diaphragm 30, and a second link for converting the angle of the first link portion 41-1.
  • Link portion 41-2 The second link portion 41-2 is arranged in a direction that intersects the vibration direction of the diaphragm 30, the vibration direction of the voice coil 21, and the arrangement direction of the first link portion 41-1.
  • the second link portion 41-2 is connected to the intermediate portion of the first link portion 41-1 via the joint portion. Specifically, the second link portion 41-2 is connected to the central portion of the first link portion 41-1 via the joint portion.
  • the diaphragm 30 is supported by the stationary part 10 (the diaphragm frame 13) via the edge 31.
  • the diaphragm 30 includes a first diaphragm 30-1 and a second diaphragm 30-2.
  • the first diaphragm 30-1 is attached to the diaphragm frame 13 via the first edge 31-1.
  • the second diaphragm 30-2 is supported by the diaphragm frame 13 through the second edge 31-2.
  • the first diaphragm 30-1 and the second diaphragm 30-2 are arranged facing each other.
  • the first diaphragm 30-1 and the second diaphragm 30-2 are arranged substantially symmetrically with each other in the same form.
  • the vibration direction converter 40 is provided between the first diaphragm 30-1 and the second diaphragm 30-2 facing each other.
  • the vibration direction conversion unit 40 connects the first diaphragm 30-1 and the second diaphragm 30-2 and interlocks them so as to be close to or away from each other. Further, the vibration direction converter 40 moves the first diaphragm 31-1 and the second diaphragm 31-2 in a direction (Z-axis direction shown) different from the vibration direction (X-axis direction shown) of the voice coil 21. Vibrate.
  • the voice coil connecting portion 43 in the vibration direction changing portion 40 is connected to one end portion of the first link portion 41-1 via the joint portion 42.
  • the connecting portion for diaphragm 44 is connected to the other end portion of the first link portion 41-1 via the joint portion.
  • One end of the second link portion 41-2 is connected to an intermediate portion of the first link portion 41-1 via the joint portion.
  • the other end of the second link portion 41-2 is connected to the frame connection portion 45 via the joint portion.
  • the joint portion 42 provided between the first link portion 41-1 and the voice coil connecting portion 43 is defined as a first joint portion 42-1, and the second link portion 41 and the stationary portion connecting portion 45 are connected to each other.
  • the joint portion 42 provided therebetween is referred to as a second joint portion 42-2.
  • the positions of the first joint part 42-1 and the second joint part 42-2 are substantially the same in the vibration direction (Z-axis direction) of the diaphragm 30.
  • the link portion 41 of the vibration direction conversion unit 40 is substantially vertically symmetrical, and the voice coil 21 or the voice coil support unit 22 is sandwiched between the pair of voice coil connection portions 43 and 43. It is connected.
  • the vibration direction converter 40 includes link portions 41A and 41B that are arranged substantially in parallel.
  • the link part 41A and the link part 41B constitute a parallel link. According to this, when the pair of voice coil connecting portions 43 and 43 vibrate along the X-axis direction due to the vibration of the voice coil 21, the link portion 41A and the link portion 41B change their angles while maintaining a substantially parallel state. .
  • the vibration of the pair of voice coil connecting portions 43 and 43 is converted into the vibration of the pair of diaphragm connecting portions 44 and 44.
  • the pair of voice coil connecting portions 43 and 43 vibrate in opposite directions along the X-axis direction.
  • the pair of diaphragm connecting portions 44 and 44 vibrate in the opposite directions along the Z-axis direction.
  • the speaker device 1 includes a pair of vibration direction converters 40 that are connected to the voice coil 21 so that the angle can be changed.
  • a pair of diaphragms 30 (first diaphragm 30-1 and second diaphragm 30-2) are arranged on both sides of the voice coil 21 in the Z-axis direction with the voice coil 21 as a boundary.
  • the pair of vibration direction converters 40 transmits the vibration of the voice coil 21 to the pair of diaphragms 30 (the first diaphragm 30-1 and the second diaphragm 30-2).
  • FIG. 2 is an explanatory view showing a connection structure of each component of the speaker device 1.
  • Each of the stationary unit 10, the driving unit 20, and the diaphragm 30 is configured by one or a plurality of speaker components 1A.
  • the speaker component 1 ⁇ / b> A is a member that constitutes part or all of the stationary part 10, the drive part 20, and the diaphragm 30.
  • the stationary part 10 includes a frame 11, a diaphragm frame 13, and the like.
  • the drive unit 20 is a component of a voice coil 21, a voice coil support unit 22, a magnetic circuit 23 (the magnetic circuit 23 can also be a stationary unit 10), and the like.
  • the first diaphragm 30-1, the second diaphragm 30-2, the first edge 31-1, the second edge 31-2, and the like constitute the speaker component 1A.
  • the speaker component 1A is divided into two types, the voice coil 21, the voice coil support portion 22, the diaphragm 30 (the first diaphragm 30-1 and the second diaphragm 30-2), and the edge 31 (the first)
  • each part of the vibration direction changing portion 40, etc. are vibration system members 1A-1, and the frame 11, the diaphragm frame 13, the magnetic circuit 23, etc. are stationary. This is the system member 1A-2.
  • the plurality of speaker constituent members 1A may be arranged so as to overlap each other at a predetermined interval in a direction intersecting the vibration direction of the drive member 20A.
  • the speaker device 1 is configured by fixing or joining the above-described speaker components 1A (1A1, 1A2) to each other, and for one speaker fixed to each other.
  • the constituent member 1A1 includes a protruding portion 1B, and the other speaker constituent member 1A2 fixed to each other includes a hole portion 1C into which the protruding portion 1B is inserted.
  • the protruding portion 1B protrudes along a direction that intersects the vibration direction (X-axis direction in the drawing) of the drive member 20A (voice coil 21 or voice coil support portion 22).
  • the protruding portion 1B protrudes along the direction intersecting the vibration direction of the driving member 20A, the protruding portion 1B receives the vibration of the driving member 20A and the vibration of the driving member 20A is detected. It is possible to suppress adverse effects on the fixed state of the speaker structural members 1A1 and 1A2. Further, the gap between the inner diameter of the hole 1C and the outer diameter of the protruding portion 1B may be substantially eliminated. By substantially eliminating this gap, the positional relationship between the speaker components 1A1 and 1A2 is determined with relatively high accuracy. Further, the protruding portion 1B can prevent the positional relationship between the speaker structural members 1A1 and 1A2 from being shifted due to the vibration of the driving member 20A.
  • the protruding portion 1B may have rigidity (bending rigidity) with respect to the vibration direction of the drive member 20A. Since the protruding portion 1B has rigidity, it is possible to prevent the positional relationship between the speaker structural members 1A1 and 1A2 from deviating.
  • the projecting portion 1B and the hole 1C are arranged at a connecting portion 1F to which a plurality of vibration system members 1A-1 are connected, a connecting portion 1F to which a plurality of stationary system members 1A-2 are connected, or a vibration system member 1A. -1 and the stationary member 1A-2 are connecting portions 1F.
  • One speaker component 1A1 includes a fixed surface 1D (1D1) on which the protruding portion 1B is provided.
  • the other speaker component 1A2 includes a fixed surface 1D (1D2) provided with a hole 1C.
  • the fixed surfaces 1D1 and 1D2 of one speaker component 1A1 and the other speaker component 1A2 extend along the vibration direction (X-axis direction in the drawing) of the drive member 20A.
  • the speaker component 1A2 has a protruding portion 1B of the speaker component 1A1.
  • one speaker component 1A1 includes a plurality of protrusions 1B
  • the other speaker component 1A2 includes a plurality of holes 1C.
  • At least one of the shape portions 1B protrudes along the vibration direction (X-axis direction in the drawing) of the drive member 20A in a direction intersecting with the vibration direction (Z-axis direction in the drawing) of the diaphragm 30. According to this, since the protruding portion 1B protrudes along the direction intersecting the vibration direction of the diaphragm 30, the protruding portion 1B receives the vibration of the diaphragm 30, and the vibration of the diaphragm 30 is detected by the speaker.
  • the other speaker component 1A2 includes a wall portion 1E disposed adjacent to the one speaker component 1A1.
  • the projecting portion 1B and the wall portion 1E are arranged side by side along the vibration direction (X-axis direction in the drawing) of the drive member 20A.
  • the wall 1E is provided to restrict the position of the one speaker component 1A1.
  • the wall portion 1E is configured so that the speaker component member 1A1 has one speaker member relative to the other speaker component member 1A2.
  • the position can be regulated.
  • one speaker component 1A1 may include a protruding portion 1B and a wall 1E. In this case, the wall 1E can regulate the position of the other speaker component 1A2 with respect to the one speaker component 1A1.
  • the protruding portion 1B and the hole 1C are portions of the vibration system member 1A-1 (the voice coil 21, the voice coil support portion 22, the diaphragm 30, the edge 31, the vibration direction changing portion 40, etc.) that vibrate substantially. You may arrange
  • the part that vibrates substantially includes a part of the vibration system member 1A-1, a part of the stationary system member 1A-2 that supports the vibration system member 1A-1, and a vibration of the vibration system member 1A-1 directly.
  • a part of the stationary system member 1A-2 to be propagated is exemplified.
  • the protruding portion 1B is formed on the fixed surface 1D of the strut portion a disposed in the hole 1C and the one speaker component 1A including the protruding portion 1B.
  • positioned facing is provided.
  • the flange portion b extends from the inside to the outside of the hole 1C.
  • the outer diameter of the flange part b is larger than the outer diameter of the hole 1C in the vicinity of the flange part b.
  • the fixed surface 1D2 of the other speaker component 1A2 is disposed between the fixed surface 1D1 of the one speaker component 1A1 and the flange portion b.
  • the fixed surfaces 1D1 and 1D2 constitute surfaces along the vibration direction of the voice coil 21.
  • the fixing surface 1D1 of one speaker component 1A1 that is in contact with each other and the fixing surface 1D2 of the other speaker component 1A2 may be substantially flat. According to this, the flange part b is maintaining the contact state of fixed surface 1D1, 1D2.
  • the speaker components 1A1 and 1A2 fixed to each other can maintain the fixed state in the vibration direction of the drive member 20A and the vibration direction of the diaphragm 30 in a state where the fixing surfaces 1D1 and 1D2 are in contact with each other.
  • the speaker component members 1A1 and 1A2 can be maintained in a good fixed state in the vibration direction of the diaphragm 30 without rattling.
  • the fixed surfaces 1D1 and 1D2 have surfaces along the vibration direction of the voice coil 21. For this reason, in the vibration direction of the voice coil 21, one speaker component 1A1 having the fixed surface 1D1 and the other speaker component 1A2 having the fixed surface 1D2 can be arranged substantially in parallel. If necessary, a resin member, an elastic member, a buffer member, an adhesive, or the like can be disposed between the fixing surfaces 1D1 and 1D2.
  • the hole 1 ⁇ / b> C has a cylindrical shape along the support column a.
  • the present invention is not limited to this, and the hole 1C may include an inclined portion 1C-1 as shown in FIG.
  • the joint surface between the flange portion b and the hole portion 1C can be made relatively large, and the fixing force can be improved.
  • insertion of the protruding portion 1B into the hole 1C can be facilitated.
  • each speaker component 1A is configured to be relatively thin in order to make the speaker device 1 thinner. That is, the thickness of the speaker component 1 ⁇ / b> A in the vibration direction of the diaphragm 30 is smaller than the length of the voice coil 21 in the vibration direction. The thickness of the speaker component 1 ⁇ / b> A in the vibration direction of the diaphragm 30 is smaller than the length in the direction intersecting the vibration direction of the diaphragm 30 and the vibration direction of the voice coil 21. For this reason, the relatively thin speaker component 1A may be deformed, for example, the cross-sectional shape changes to a curved shape. In addition, a relatively thin speaker component may be slightly curved depending on manufacturing conditions.
  • each speaker component 1 ⁇ / b> A is configured to be stacked along the vibration direction of the diaphragm 30. For this reason, when the curved speaker component 1A is used, it may be difficult to satisfactorily connect to another speaker component. When a curved speaker component and another speaker component are connected, the fixing force may be reduced. In the vibration direction of the diaphragm 30, there may be a case where another speaker component cannot be disposed at a desired position.
  • the speaker component 1A can be fixed to another speaker component while maintaining the shape substantially parallel to the other speaker components.
  • the protruding portion 1B and the hole portion 1C it is possible to improve the fixing force of the speaker structural members that are connected to each other.
  • the protruding portions 1B and the holes 1C the relative positional relationship of the speaker structural members in the vibration direction of the diaphragm 30 can be set to a desired positional relationship.
  • the fixing surface 1D around the protruding portion 1B or the hole 1C the connecting portions of the speaker structural members 1A that are connected to each other can be fixed while being maintained in a substantially parallel shape.
  • the protruding portion 1B and the hole portion 1C By using the protruding portion 1B and the hole portion 1C, the plurality of speaker components 1A are accurately fixed at desired positions in the vibration direction of the diaphragm 30.
  • Protrusion-like part 1B is provided with rigidity, and it can control that position shift occurs in the vibration direction of voice coil 21.
  • the fixed surface 1D provided around the protrusion 1B and the hole 1C includes a surface along the vibration direction of the voice coil 21.
  • the fixed surface 1D may include a flat surface.
  • a yoke 23A and a diaphragm frame 13 are arranged on the frame 12 along the vibration direction of the voice coil 21 and fixed.
  • the yoke 23A defines the width of the magnetic gap 23G in the vibration direction of the diaphragm 30.
  • the diaphragm frame defines the position of the diaphragm 30 in the vibration direction of the diaphragm 30.
  • the voice coil 23 is disposed in the defined magnetic gap 23G.
  • the voice coil 23 is connected to the diaphragm 30 via the vibration direction converter 40.
  • the yoke 23A and the diaphragm frame 13 are set to desired positions in the vibration direction of the voice coil 21 and the vibration direction of the diaphragm 30, at least of the voice coil 21 and the diaphragm 30.
  • One side can be prevented from being disposed in an inclined state with respect to the vibration direction of the voice coil 21.
  • One speaker component 1A1 provided with the protruding portion 1B is made of, for example, a resin member.
  • the resin member include thermoplastic resins that melt when heated by heating means such as light irradiation (infrared rays or the like) and a soldering iron, and hot-melt materials such as solder.
  • the flange part b is continuously provided at the end part of the column part a that supports the flange part b.
  • the flange portion b can be formed by, for example, press-contacting the support column portion a with a heating and pressing member.
  • the end portion of the column portion a is thermally melted in a state where the protruding portion 1B is inserted into the hole portion 1C to form the flange portion b. Is done.
  • the flange part b may be formed by pressing the end part of the support
  • the protruding portion 1B from which the support column a before protruding is shown as “1B (a)”, and the protrusion having the flange portion b obtained by heating and melting the end of the support column a.
  • the shaped portion 1B is indicated as “1B (b)”.
  • the flange part b formed by the heating and pressure welding member provided with the mold may be in contact with the upper surface of the speaker component 1A facing the flange part b. Further, the surface shape of the upper surface of the speaker component 1A may be transferred to the lower surface of the flange portion b. By transferring the surface shape of the speaker component 1A to the lower surface of the flange portion b, it is possible to suppress positional deviation of the speaker components 1A1 and 1A2 fixed to each other in the vibration direction of the drive member 20A. In addition, it is possible to suppress the occurrence of rattling between the speaker components 1A1 and 1A2.
  • the external heating means is a method of heating by heat conduction (transfer of heat) from a heat source outside the member to be heated.
  • the internal heating means is a method for heating the heated member itself. Moreover, since the temperature inside a to-be-heated member is raised, the temperature rise of the member which does not want to heat can be suppressed. For this reason, it can suppress that a deformation
  • the speaker device 1 may be configured by stacking the thinned speaker structural members 1 ⁇ / b> A along the vibration direction of the diaphragm 30. In this case, it is necessary to arrange the plurality of speaker components 1A with high accuracy in the vibration direction of the diaphragm 30. At this time, if one speaker component is deformed by heating during welding, a relative positional relationship between the plurality of speaker components 1A is adversely affected. Specifically, the deformed diaphragm 30 (vibration system member) may not be able to vibrate along a desired vibration direction. The deformed voice coil 21 (vibration system member) may come into contact with a yoke, which will be described later, and abnormal noise may be generated.
  • the external heating means include hot air welding, hot plate welding, impulse welding, and iron welding.
  • Specific examples of the internal heating means include ultrasonic welding using a high frequency dielectric heating method, and photo welding using a condensed infrared ray or laser beam.
  • the light welding can substantially heat only a part of the heated member to be heated. For this reason, it can suppress that a deformation
  • the surface of the speaker component 1A facing the flange portion b may be subjected to a surface treatment. By performing the surface treatment or the like, it is possible to improve the adhesion between the flange portion b and the speaker component 1A. If necessary, at the same time as forming the flange portion b, the flange portion b and the speaker component 1A may be integrated. A gap may be formed between the speaker structural members 1A1 and 1A2 fixed to each other to such an extent that no rattling occurs.
  • FIG. 4 is a view as seen from a direction different from FIG. 3).
  • the diaphragm frame 13 that supports the diaphragm 30 directly or via another member (edge 31) is disposed on the frame (drive part frame) 11 that supports the drive unit 20.
  • the illustrated speaker device 1 includes a pair of diaphragms 30 on both sides (on the paper surface, up and down) with respect to the frame 11.
  • the frame 11 is disposed between a pair of diaphragm frames 13.
  • the diaphragm frame 13 has a positioning convex portion 13 b
  • the frame 11 has a positioning concave portion 11 a
  • the frame 11 is disposed between the pair of diaphragm frames 13.
  • the positioning convex portion 13b and the positioning concave portion 11a are fitted.
  • the frame 11 is provided with the protruding portion 1B, and the diaphragm frame 13 is provided with the hole portion 1C.
  • the frame 11 is provided with the hole portion 1C, and the diaphragm frame 13 is protruded.
  • the plurality of protruding portions 1 ⁇ / b> B and the holes 1 ⁇ / b> C are provided side by side along the vibration direction (X-axis direction in the drawing) of the voice coil 21. Further, each protruding portion 1B protrudes in a direction (Z-axis direction in the drawing) intersecting the vibration direction of the voice coil 21.
  • a flat plate-like diaphragm 30 having a rectangular shape in plan view is supported on the diaphragm frame 13 via an edge 31 so as to freely vibrate.
  • the diaphragm 30 is provided with a hole 1C, and the protruding portion 1B protruding from the diaphragm connecting portion 44 of the vibration direction changing section 40 is inserted into the hole 1C.
  • the edge 31 includes a reinforcing portion 31a having a rib-shaped cross section at a corner portion thereof.
  • the diaphragm 30 may include the protruding portion 1B, and the diaphragm connecting portion 44 may include the hole 1C.
  • both end portions of the flat plate portion 23A-1 of the yoke 23A are connected to the frame 11.
  • the protruding portion 1B Of the both ends of the flat plate-like portion 23A-1 and the frame 11, one is provided with the protruding portion 1B, and the other is provided with the hole portion 1C.
  • holes 1C are provided at both ends of the flat portion 23A-1 in the Y-axis direction.
  • the protruding portion 1B protruding from the frame 11 is inserted into the hole 1C.
  • the present invention is not limited to the illustrated example, and the protrusions 1B may be provided at both ends of the flat portion 23A-1 in the Y-axis direction, and the hole 1C may be provided in the frame 11.
  • the speaker device 1 includes a holding unit 24 that supports the voice coil 21 or the voice coil support unit 22 so as to vibrate freely in one axis direction.
  • the holding part 24 is disposed in a magnetic gap 23G formed between the pair of yokes 23A.
  • the holding part 24 is arranged outside the voice coil 21 or the voice coil support part 22 and is fixed to the frame 11 (stationary part).
  • One of the holding portion 24 and the frame 11 includes a single hole portion 1 ⁇ / b> C or a plurality of hole portions 1 ⁇ / b> C arranged side by side with respect to the vibration direction of the voice coil 21.
  • the other of the holding portion 24 and the frame 11 includes a plurality of protruding portions 1 ⁇ / b> B arranged in the hole 1 ⁇ / b> C of the holding portion 24.
  • the holding part 24 includes a single protrusion 1B or a plurality of protrusions 1B
  • the frame 11 includes a single hole 1C or a plurality of holes 1C. Also good.
  • the frame 11 includes a diaphragm frame 13, a magnetic circuit 23 (yoke 23A), and a wall portion (convex portion) 1E that regulates the position of the holding portion 24.
  • both end portions of the yoke 23A are disposed between two wall portions 1E (1E1, 1E2) arranged in the X-axis direction.
  • the protruding portion 1B of the frame 11 and the wall portion 1E (1E1, 1E2) inserted into the hole 1C of the yoke 23A are arranged along the vibration direction (X-axis direction in the drawing) of the voice coil 21. Further, as shown in FIG.
  • each wall part 1E is arrange
  • the wall 1E (1E1) is adjacent to the outer peripheral portion 13a of the diaphragm frame 13.
  • the wall portion 1E (1E1) is arranged side by side along the vibration direction of the voice coil 21 with respect to the protruding portion 1B, and regulates the position of the diaphragm frame 13.
  • the frame 11 includes a region in which the diaphragm frame 13 is disposed and a region in which the yoke 23A included in the magnetic circuit 23 is disposed.
  • the wall portion 1E defines an area in which the diaphragm frame 13 and the yoke 23A are disposed in the plane area of the frame 11.
  • the wall 1E defines a region where the plurality of speaker components 1A are arranged.
  • a plurality of speaker components can be arranged in a state of being close to each other. Thereby, in the vibration direction of the voice coil 21, the frame 11 can be reinforced and the rigidity of the speaker device can be improved.
  • the rigidity (bending rigidity) may be relatively small.
  • the speaker components 1A can be arranged in a state of being close to each other. Therefore, the adjacent speaker component 1A can be reinforced and the rigidity of the speaker device can be improved.
  • FIG. 5 is an explanatory view showing a state before the diaphragm frame 13 is attached to the frame 11.
  • the frame 11 includes a plurality of protruding portions 1B.
  • the protruding portion 1B (1B1) is inserted into a hole 1C (1C1) provided in the diaphragm frame 13.
  • the protruding portion 1B (1B2) is inserted into the hole 1C provided in the yoke 23A of the magnetic circuit 23.
  • the protruding portion 1B (1B3) is inserted into the hole 1C provided in the holding portion 24.
  • the protruding portion 1B (1B4) is inserted into the hole 1C of the frame connecting portion 45 of the vibration direction changing portion 40.
  • the protruding portion 1B (1B4) is provided on the fixed surface 1D of the link portion supporting portion 12 in the frame 11.
  • the frame 11 includes a link portion support portion 12 that supports the second link portion 41-2.
  • the link portion support portion 12 protrudes from the frame 11 toward the voice coil 21.
  • a plurality of protruding portions 1B (1B1, 1B2, 1B3) are arranged on a part of the frame 11 along the vibration direction of the voice coil 21.
  • the plurality of protruding portions 1 ⁇ / b> B in the Y-axis direction are formed with an outer diameter substantially the same as the width of the frame 11. For this reason, the outer diameter of the protruding portion 1B is relatively large and has rigidity.
  • the protruding portion 1B includes the column portion b. You may make the outer diameter of the support
  • the diaphragm frame 13 includes an outer peripheral portion 13a that supports the diaphragm 30, and an opening 13c in which a part of the diaphragm 30 is disposed.
  • a diaphragm 30 is attached to the outer peripheral portion 13 a of the diaphragm frame 13 via an edge 31.
  • Each protruding portion 1B is provided on a fixed surface 1D (1D1), and a fixed surface 1D (1D2) is provided around the hole 1C.
  • the following are shown as the protruding portions 1B and the holes 1C arranged in the vicinity of the portion that substantially vibrates as described above, but are not limited thereto.
  • Protruding portions 1B1 provided at four corners of the diaphragm frame 13 and holes 1C1 corresponding to the protruding portions 1B1 are disposed in the vicinity of the edge 31 that substantially vibrates.
  • the edge 31 vibrates so as to follow the diaphragm 30.
  • the vibration of the voice coil 21 is propagated to the diaphragm 30 via the vibration direction converter 40. For this reason, vibration along the vibration direction of the voice coil 21 is propagated to the edge 31.
  • the diaphragm 30 that vibrates substantially includes a hole 1C.
  • the vibration direction converter 40 that vibrates substantially includes a diaphragm connecting portion 44 that connects to the diaphragm 30.
  • the diaphragm connecting portion 44 includes a protruding portion 1B. Therefore, the protrusion 1B and the hole 1C are provided in the vicinity of the vibration plate that substantially vibrates and the vibration direction conversion portion.
  • the holding unit 24 includes a voice coil support unit 24-1 that supports the voice coil 21.
  • the voice coil support portion 24-1 vibrates along the vibration direction of the voice coil 21.
  • Protruding portions 1B3 and hole portions 1C corresponding to the protruding portions 1B3 are provided in the vicinity of the voice coil support portion 24-1 that vibrates substantially and on both ends of the holding portion 24. .
  • a portion of the yoke 23A facing the voice coil 21 vibrates by receiving a reaction force in the vibration direction of the voice coil 21 due to a reaction of an electromagnetic force (Lorentz force) acting on the voice coil 21.
  • the direction of this reaction force is opposite to the direction in which the voice coil 21 vibrates.
  • Protruding portions 1B2 and hole portions 1C corresponding to the protruding portions 1B2 are provided in the vicinity of a part of the yoke 23A that substantially vibrates and in the vicinity of both ends of the yoke 23A.
  • the vibration direction conversion unit 40 transmits the vibration of the voice coil 21 to the diaphragm 30. Further, the first link portion 41-1 and the second link portion 41-2 of the vibration direction conversion unit 40 vibrate in the vibration direction of the voice coil 21.
  • Voice coil connecting portions 46 and 47 are connected to the first link portion 41-1. Protrusions 1B and holes 1C are provided in the vicinity of the first link portion 41-1 that substantially vibrates. These protruding portions 1B and holes 1C are provided with voice coil connecting portions 46 and 47, respectively. Further, the voice coil coupling portions 46 and 47 that substantially vibrate include a protruding portion 1B and a hole portion 1C.
  • a frame connecting portion 45 is connected to the second link portion 41-2.
  • a protruding portion 1B and a hole portion 1C are provided in the vicinity of the second link portion 41-2 that substantially vibrates.
  • the projecting portion 1B and the hole portion 1C are provided in the frame connecting portion 45 or the link portion supporting portion 12.
  • the frame connection portion 45 that vibrates substantially includes a protruding portion 1B and a hole portion 1C.
  • the voice coil 21 and the voice coil support portion 22 that vibrate substantially may include the protruding portion 1B and / or the hole portion 1C.
  • the protruding portion 1B and / or the hole 1C provided in the vicinity of the portion that substantially vibrates may be provided in the frame 12 or the diaphragm frame 13 as a stationary portion.
  • the frame 12 includes a plurality of protruding portions 1B provided in the vicinity of a portion that substantially vibrates.
  • the hole portion 1C corresponding to the plurality of protruding portions 1B is provided in the link portion 41 of the diaphragm frame 13, the holding portion 24, the yoke 23A, and the vibration direction changing portion 40.
  • an external force (shearing force) is applied along the vibration direction of the voice coil 21 to the connecting portions of the speaker projections 1A1 and 1A2 that are fixed to each other in the vicinity of the portion that substantially vibrates.
  • the protruding portion 1B it is possible to maintain the fixing force with the speaker structural members 1A1 and 1A2 fixed to each other.
  • some of the speaker components An external force along the vibration direction of the voice coil 21 acts.
  • the vibration of the voice coil 21 propagates through the holding portion 24 via a voice coil support portion 24-1 that supports the voice coil 21 described later. For this reason, an external force along the vibration direction of the voice coil 21 acts on the speaker component 1 ⁇ / b> A in the vicinity of the holding portion 24.
  • the reaction force of the electromagnetic force (Lorentz force) acting on the voice coil 21 acts on the yoke 23A. Therefore, an external force along the vibration direction of the voice coil 21 acts on the speaker component 1A in the vicinity of the yoke 23A.
  • the vibration of the voice coil 21 propagates through the link portion 41 to the voice coil connecting portions 46 and 47, the frame connecting portion 45, and the link portion supporting portion 12. Therefore, an external force along the vibration direction of the voice coil 21 acts on the voice coil connection portions 46 and 47, the frame connection portion 45, and the link portion support portion 12.
  • FIG. 6 is an explanatory diagram showing an internal structure of the speaker device 1 (a state in which each part is arranged on the frame 11 and a part of the upper diaphragm frame 13 and the magnetic circuit 23 are removed).
  • the voice coil 21 or the voice coil support portion 22 has a flat plate shape, and is supported by the holding portion 24 so as to freely vibrate.
  • the voice coil connecting portion 43 of the vibration direction conversion section 40 is connected to one end of the voice coil 21 or the voice coil support section 22 on the vibration direction conversion section 40 side.
  • the frame connecting portion 45 of the vibration direction changing unit 40 is connected to the frame 11.
  • the diaphragm 30 is coupled to the diaphragm coupling portion 44 of the vibration direction converter 40.
  • a lead wire 21-1 that is electrically connected to the outside is attached to the other end portion of the voice coil 21 or the voice coil support portion 22 on the holding portion 24 side.
  • the second link portion 41-2 includes a frame connection portion 45 that is connected to the link portion support portion 12 of the frame 11.
  • One of the link portion support portion 12 and the frame connection portion 45 includes a protruding portion 1B, and the other includes a hole portion 1C.
  • the link portion support portion 12 may include the hole portion 1C
  • the frame connection portion 45 may include the protruding portion 1B.
  • a plurality of protrusions 1 ⁇ / b> B and a plurality of holes 1 ⁇ / b> C are arranged side by side along a direction intersecting the vibration direction of the voice coil 21. For this reason, the voice coil 21 and the vibration direction converter 40 can vibrate substantially integrally.
  • the vibration direction converter 40 can efficiently transmit the vibration of the voice coil 21 to the diaphragm 30.
  • the link portion 41 includes a reinforcing portion 49 described later.
  • the link portion 41 is driven by a driving force in the vibration direction of the voice coil 21.
  • the link portion 41 is curved, and the vibration of the voice coil 21 may not be transmitted efficiently.
  • rigidity can be provided. Therefore, the vibration direction conversion unit 40 including the link portion 41 can efficiently transmit the vibration of the voice coil 21 to the diaphragm 30.
  • the link portion support portion 12 and the frame connection portion 45 of the vibration direction conversion portion 40 include a fixed surface 1D that is in contact with each other.
  • the fixing surface 1D included in the frame 11 and the second link portion 41-2 includes a protruding portion 1B and a hole 1C.
  • the frame 11 includes a wall portion 1E (1E4; see FIG. 5) adjacent to the frame connection portion 45 along the vibration direction of the voice coil 21.
  • the wall 1E (1E4) regulates the position of the second link portion 41-2.
  • FIG. 7 and 8 are explanatory views showing the connection between the vibration direction converter 40 and the voice coil 21.
  • FIG. The vibration direction converter 40 includes a voice coil connecting portion 43 as the link portion 41.
  • the voice coil connecting portion 43 is connected to the voice coil 21 or the voice coil support portion 22.
  • One of the voice coil 21 or the voice coil support portion 22 and the voice coil connecting portion 43 includes the protruding portion 1B, and the other includes the hole portion 1C.
  • the voice coil 21 or the voice coil support portion 22 may include the protruding portion 1B
  • the voice coil connecting portion 43 may include the hole portion 1C.
  • the vibration direction conversion unit 40 is configured by a sheet-like material, and the vibration direction conversion unit 40 is configured by folding one sheet-like material at an intermediate portion (a central portion in the illustrated example).
  • This sheet-like object includes a first connecting portion 46 disposed on one end side and a second connecting portion 47 disposed on the other end side. Further, a pair of link portions 41 and a third connection portion 48 for connecting the pair of link portions 41 are provided between the first connection portion 46 and the second connection portion 47.
  • the first connecting portion 46 and the second connecting portion 47 are connected to each other to form a voice coil connecting portion 43.
  • the third connecting portion 48 constitutes a diaphragm connecting portion 44.
  • the first connecting portion 46 and the second connecting portion 47 that are connected to each other one includes a protruding portion 1B, and the other includes a hole portion 1C into which the protruding portion 1B is inserted.
  • the joint part 42 is provided between the link part 41 and the first connecting part 46, the second connecting part 47, and the third connecting part 48.
  • Each link portion 41 includes a reinforcing portion 49. By providing the reinforcing portion 49 in the link portion 41, rigidity in the vibration direction of the voice coil 21 can be provided.
  • the upper vibration direction conversion unit 40 disposed on the upper side of the voice coil 21 is connected to the upper surface of the voice coil 21 or the voice coil support unit 22.
  • a lower vibration direction conversion unit 40 disposed below the voice coil 21 is connected to the lower surface of the voice coil 21 or the voice coil support unit 22.
  • the voice coil 21 or the voice coil support portion 22 includes a plurality of holes 1C.
  • a protruding portion 1B protruding from the voice coil connecting portion 43 of the upper vibration direction changing portion 40 is inserted into a part of the plurality of holes 1C. Further, the protruding portion 1B protruding from the voice coil connecting portion 43 of the lower vibration direction changing portion 40 is inserted into the remaining hole portion 1C.
  • the voice coil connecting portion 43 as the speaker component 1A is provided with a hole 1C together with the protruding portion 1B. Further, the protruding portion 1B of the upper vibration direction changing portion 40 passes through the hole 1C of the voice coil 21 or the voice coil support portion 22 and is connected to the voice coil connecting portion 43 of the lower vibration direction changing portion 40. Is inserted into the hole 1C. The protruding portion 1B of the lower vibration direction changing portion 40 penetrates the hole 1C of the voice coil 21 or the voice coil support portion 22 and the hole portion of the voice coil connecting portion 43 of the upper vibration direction changing portion 40. 1C is inserted.
  • the connecting portion where the upper and lower vibration direction converting portions 40 and the voice coil connecting portion 43 are connected includes a plurality of protruding portions 1B arranged side by side along the vibration direction of the voice coil 21.
  • a plurality of protruding portions 1 ⁇ / b> B are arranged side by side in a direction that intersects the vibration direction of the voice coil 21.
  • the voice coil 21 or the voice coil support portion 22 and the pair of vibration direction conversion portions 40 are displaced from each other in the vibration direction of the voice coil 21 or the direction intersecting the vibration direction of the voice coil 21. Can be maintained in a stable state.
  • the upper and lower vibration direction converters 40 and 40 include an upper frame connecting portion 45 provided at the end of the second link portion 41-2 via a joint portion 42, and a lower frame connecting portion 45. Is provided. These frame connecting portions 45 are joined together. Each frame connecting portion 45 includes a protruding portion 1B and a hole 1C. When the upper frame connecting portion 45 and the lower frame connecting portion 45 are joined, the protruding portion 1B of the upper frame connecting portion 45 is inserted into the hole of the lower frame connecting portion 45. . At this time, the connection portions of the upper and lower frame connection portions 45, 45 include a plurality of protruding portions 1 ⁇ / b> B in a direction intersecting the vibration direction of the voice coil 21. For this reason, it fixes to the support part for link parts favorably.
  • a connecting portion 50 is provided between the voice coil connecting portion 43 of the vibration direction changing portion 40 and the voice coil 21 or the voice coil supporting portion 22.
  • the connecting portion 50 can be used as a spacer that adjusts the relative positional relationship between the vibration direction changing portion 40 and the voice coil 21 in the vibration direction of the diaphragm 30.
  • the connecting portion 50 provided between the one speaker component 1A1 and the other speaker component 1A1 suppresses the generation of abnormal noise due to the contact between the two speaker components 1A1 and 1A2 fixed to each other. It can also be used as a buffer material.
  • FIG. 9 and 10 are explanatory views showing the connection between the vibration direction converter 40 and the diaphragm 30.
  • FIG. One of the diaphragm 30 and the diaphragm connecting portion 44 includes the protruding portion 1B, and the other includes the hole 1C.
  • the diaphragm 30 that is supported by the diaphragm frame 13 through the edge 31 so as to freely vibrate is provided with the hole 1C, and the diaphragm connecting portion 44 of the vibration direction changing section 40 is inserted into the hole 1C.
  • the protruding portion 1B is provided.
  • the diaphragm 30 includes a flat plate portion 30-1.
  • the flat plate portion 30-1 includes a hole 1C.
  • the protruding portion 1B of the diaphragm connecting portion 44 is inserted into the hole 1C of the flat plate portion 30-1, and the diaphragm connecting portion 44 and the flat plate portion 30-1 are connected. Further, the flat plate portion 30-1 and the diaphragm connecting portion 44 include a fixed surface 1D on the facing side.
  • FIG. 11 shows a configuration example of the vibration direction converter 40.
  • a vibration regulating member 60 is provided on the voice coil connecting portion 43 and in the vicinity of the joint portion 42.
  • the vibration regulating member 60 has a protruding shape from the voice coil connecting portion 43 toward the diaphragm 30. Further, the vibration regulating member 60 is disposed so as to face the link portion 41 connected to the voice coil connecting portion 43 through the joint portion 42.
  • the vibration regulating member 60 generates a sound by contacting a part of the link portion 41.
  • the amplitude of the voice coil 21 is excessively increased, the amplitude of the link portion 41 is excessively increased. At this time, a part of the link portion 41 moves toward the vibration regulating member 60.
  • the vibration regulating member 60 has a function of generating a sound by contact with a part of the link portion 41 and notifying the user of the over-amplitude when the amplitude of the link portion 41 becomes excessively large. .
  • the user can use the vibration regulating member 60 as long as no contact sound is generated. Moreover, it can suppress that the vibration direction conversion part 40 is damaged by the overamplitude of the voice coil 21.
  • the vibration direction conversion unit 40 includes a contact avoiding unit 61 disposed in the vicinity of the joint unit 42, a first connecting unit (link portion 41), and a second connecting unit (link portion 41) having the contact avoiding unit 61.
  • the first connecting portion 46 and the second connecting portion 47 constitute a voice coil connecting portion 43.
  • the first connecting portion 46 is connected to the link portion 41 ⁇ / b> A via the joint portion 42.
  • the second connecting portion is connected to the link portion 41B via the joint portion.
  • the 2nd connection part is provided with the contact avoidance part 61 on the surface in the side which faces a 1st connection part.
  • the contact avoiding portion is disposed in the vicinity of the joint portion 42 that connects the first connecting portion 46 and the link portion 41A.
  • the contact avoiding portion 61 also functions as a joining member accommodating portion (constraining portion) that accommodates and restrains the first connecting portion 46 and the second connecting portion 47 by accommodating the joining member.
  • the contact avoiding portion 61 is formed in a concave shape along the joint portion 42, for example, a concave portion, a notch portion, a groove portion, or the like.
  • the contact avoiding portion 61 forms a predetermined space between the joint portion 42 and the surface of the second connecting portion 47 disposed in the vicinity of the joint portion 42. Further, the contact avoiding portion 61 prevents the adhesive member interposed between the first connecting portion 46 and the second connecting portion 47 from being involved in the joint portion 42.
  • the joining member include an adhesive, a double-sided tape, and an adhesive member.
  • FIG. 12 is an explanatory diagram showing another configuration example of the speaker device (the same parts as those described above are denoted by the same reference numerals, and the duplicate description is omitted).
  • This speaker device 1 uses an annular voice coil 21 or voice coil support portion 22 as a drive member 20A.
  • a voice coil 21 is wound around an annular voice coil support portion 22.
  • the annular voice coil 21 may have rigidity in the vibration direction (X-axis direction) of the voice coil 21.
  • the annular voice coil 21 is disposed in the magnetic gap 23 ⁇ / b> G of the magnetic circuit 23.
  • the annular voice coil 21 is supported by a holding member (not shown) such as a damper so as to freely vibrate.
  • the magnetic circuit 23 includes a yoke 23A, a magnet 23B, and a plate 23C, and the yoke 23A includes an outer peripheral cylindrical portion 23A1, a bottom surface portion 23A2, and a column portion 23A3.
  • the magnet 23B is magnetically joined to the column portion 23A3, and a magnetic gap 23G is formed between the outer peripheral surface of the plate 23C and the outer peripheral cylindrical portion 23A1 of the yoke 23A.
  • the yoke 23A and the column portion 23A3 may be configured as separate members or may be configured integrally.
  • the column portion 23A3 may be a magnet, or the magnet 23B and the column portion 23A3 may be integrated.
  • the yoke 23A, the magnet 23B, and the plate 23C as components constituting the magnetic circuit 23 are made of a magnetic material.
  • the magnet 23B may be a rare earth magnet or a ferrite magnet, and a known magnetic material can be used. In the illustrated example, a single magnet is shown, but a plurality of magnets may be used in consideration of magnetic efficiency and the like. When using a plurality of magnets, a rare earth magnet and a ferrite magnet may be used in combination.
  • the illustrated example is a so-called inner magnet type magnetic circuit, but an outer magnet type magnetic circuit, a magnetic circuit using both an inner magnet type and an outer magnet type magnetic circuit, and a repulsive type magnetic circuit using a plurality of magnets.
  • the form of the magnetic circuit is not particularly limited to this.
  • the magnetic circuit 23 is supported by the drive support unit 16 and is held between the upper and lower diaphragm frames 13 and 13.
  • the vibration direction conversion unit 40 is connected to the voice coil 21 via a rigid connection unit 50.
  • the voice coil connecting portion 43 of the vibration direction converting portion 40 is connected to the voice coil 21 or the voice coil supporting portion 22 that supports the voice coil 21 via the connecting portion 50.
  • the connecting part 50 includes a rigid mounting surface part 51, a first cylindrical connecting part 52, and a second cylindrical connecting part 53.
  • the rigid attachment surface portion 51 has an attachment surface 51 a along the direction intersecting the vibration direction of the voice coil 21.
  • the first cylindrical connecting portion 52 is connected to the voice coil connecting portion 43. Specifically, the inner peripheral surface of the first cylindrical connecting portion 52 is in contact with the outer peripheral surface of the voice coil connecting portion 43. As a result, the first tubular connecting portion 52 arranges the voice coil connecting portion 43 at a predetermined position with respect to the voice coil 21.
  • the second cylindrical connecting portion 53 is connected to the voice coil 21. Specifically, the outer peripheral surface of the second cylindrical connecting portion 53 is in contact with the inner peripheral surface of the voice coil support portion 22. As a result, the second cylindrical connecting portion 53 places the voice coil support portion 22 at a specified position with respect to the voice coil connecting portion 43.
  • the vibration direction converter 40 is provided with a curved portion 41S at the end of the second link portion 41-2 on the first link portion 41-1 side.
  • a curved portion 41S By providing the curved portion 41S, it is possible to avoid problems caused by the contact between the first link portion 41-1 and the second link portion 41-2.
  • the frame 11 and the diaphragm frame 13 are connected. Further, the diaphragm 30 and the diaphragm connecting portion 44 are connected. Further, the link portion support portion 12 of the frame 11 and the frame connection portion 45 of the vibration direction conversion portion 40 are connected.
  • One of the diaphragm 30 and the diaphragm connecting portion 44 is provided with a protruding portion 1B, and the other is provided with a hole 1C. Further, one of the frame 11 and the diaphragm frame 13 is provided with a protruding portion 1B, and the other is provided with a hole 1C.
  • one of the link portion support portion 12 of the frame 11 and the frame connection portion 45 of the vibration direction changing portion 40 is provided with a protruding portion 1B, and the other is provided with a hole portion 1C.
  • a plurality of these protruding portions 1B and holes 1C may be provided.
  • the plurality of protruding portions 1 ⁇ / b> B and the plurality of holes 1 ⁇ / b> C may be arranged side by side in the direction of vibration of the voice coil 21 or the direction intersecting with the direction of vibration of the voice coil 21.
  • FIG. 13 is an explanatory diagram showing another configuration example of the speaker device (the same parts as those described above are denoted by the same reference numerals, and the duplicate description is omitted).
  • the diaphragm 30 is arranged in a state where the first diaphragm 30-1 and the second diaphragm 30-2 face each other as in the above-described example.
  • Each diaphragm 30 includes a flat plate portion 30A and an annular portion 30B surrounding the flat plate portion 30A.
  • the annular portion 30B has a top portion 32 protruding along the vibration direction (Z-axis direction) of the diaphragm 30.
  • rigidity is provided in a direction intersecting the vibration direction (X-axis direction) of the voice coil 21.
  • the top portion 32 provided in the annular portion 30B includes a first top portion 32-1 and a second top portion 32-2.
  • the first top portion 32-1 has a shape protruding toward the vibration direction changing portion 40 side.
  • the second top portion 32-2 is disposed between the first top portion 32-1 and the flat plate-shaped portion 31A, and has a shape protruding in the acoustic radiation direction.
  • the link portion 41 of the vibration direction conversion unit 40 is configured to be substantially bilaterally symmetric and vertically symmetric.
  • a parallel link is formed by the link portion 41A and the link portion 41B.
  • the link portion 41A or the link portion 41B arranged substantially symmetrically in the left-right direction and in the vertical direction is arranged in a pantograph shape. According to this, when the pair of voice coil connecting portions 43 and 43 vibrate in the opposite directions along the X-axis direction due to the pair of voice coils 21 and 21 vibrating synchronously, the link portion 41A and the link portion 41B. Changes the angle while maintaining a substantially parallel state.
  • the stationary portion 10 includes a first outer peripheral frame portion 13-1 that supports the first diaphragm 30-1 and a second outer peripheral frame portion 13-2 that supports the second diaphragm 30-2.
  • the frame 11 includes the working frame 13 and the inner support portion 14 that supports the vibration direction changing portion 40.
  • the inner support portion 14 protrudes from the frame 11 toward the vibration direction conversion portion 40 and has rigidity with respect to the vibration direction of the diaphragm 30.
  • the inner support portion 14 protrudes from two portions of the frame 11 arranged to face each other, and serves as a bridge portion 15 that bridges between the two portions.
  • a frame connecting portion 45 of the vibration direction changing portion 40 is attached to the inner support portion 14.
  • a drive unit support unit 16 that supports the magnetic circuit 30 is sandwiched between the first outer peripheral frame unit 13-1 and the second outer peripheral frame unit 13-2 of the diaphragm frame 13.
  • the speaker device 1 shown in FIG. 13 includes a connecting portion between the driving portion support member 16 and the diaphragm frame 13, a connecting portion between the diaphragm 30 and the diaphragm connecting portion 44, a frame connecting portion 45 and the inner support portion 14.
  • the projecting portion 1B and the hole portion 1C are provided in the (bridge portion 15) or the like.
  • the holding part 24 shown in FIG. 14 shows a modification when the protruding part 1B and the hole part 1C are applied to the holding part 24.
  • a part of the illustrated holding unit 24 shows the back surface of the holding unit shown in FIG. 6.
  • the holding portion 24 includes a protruding portion 1B of two different portions, and the other portion includes a concave portion 1F (hole portion 1C).
  • the protruding portion 1 ⁇ / b> F extends in a direction that intersects the vibration direction of the voice coil 21.
  • One part of the holding part 24 supports the voice coil 21 so that it can vibrate.
  • the recess 1F includes a wall 1F-1 and a support surface 1F-2.
  • the wall portion 1F-1 and the support surface portion 1F-2 of the recess 1F constitute a space for accommodating the protruding portion 1B.
  • the end of the protruding portion 1B is melted to form the flange portion b.
  • the concave portion 1F has a shape corresponding to the flange portion formed in the protruding portion 1B.
  • the concave portion 1F includes a wall portion 1F-1 facing the outer peripheral portion of the support column portion a.
  • the gap between the wall portions 1F-1 is smaller than the gap in the vicinity of the end of the protrusion 1B.
  • the flange part provided in the protruding part 1B is fixed to the other part of the holding part 24 having the recess 1F. Therefore, even if the voice coil 21 vibrates, one part of the holding part 24 is stably fixed to the other part of the holding part 24. In addition, the occurrence of positional deviation is suppressed.
  • the recess 1F may be the hole 1C.
  • the fixing surface 1D is provided on one part and the other part of the holding part 24.
  • the protruding portion 1B and the concave portion 1F are provided in the vicinity of one corner portion of the holding portion 24. However, the present invention is not limited to this and may be provided in the vicinity of four corner portions.
  • the speaker device 1 fixes the speaker components 1A (1A1, 1A2) to each other by the protruding portion 1B and the hole portion 1C, the productivity of the speaker device is reduced due to the curing time of the adhesive. Can be resolved. Further, in the manufacturing process of the speaker device, it is possible to eliminate the troublesomeness caused by fixing the positions of the constituent members until the adhesive is completely cured. Further, in the speaker device including the vibration direction converter 40 capable of achieving both high volume and thinning, the speaker device is firmly fixed against an external force (shearing force) caused by vibration of the driving member 20A (voice coil 21). Therefore, it is possible to prevent a problem that the structural members 1A (1A1, 1A2) for speakers collide with each other and generate abnormal noise due to the fixed position being shifted.
  • the speaker-constituting members 1A (1A1, 1A2) are fixed to each other by the fixed surfaces 1D (1D1, 1D2). It is often formed along the vibration direction.
  • the vibration of the drive member 20A acts as a shearing force on the fixed surface 1D (1D1, 1D2). Therefore, a protrusion 1B protruding in a direction intersecting the vibration direction of the drive member 20A is provided on the fixed surface 1D1, and this is inserted into the hole 1C of the fixed surface 1D2.
  • the protruding portion 1B becomes a resistance against the shearing force generated by the vibration of the driving member 20A, and the fixed state can be firmly maintained.
  • the flange portion b at the end portion of the protruding portion 1B, the positional deviation in the protruding direction of the protruding portion 1B of the speaker structural members 1A1 and 1A2 to which the flange portion b is fixed is suppressed.
  • the strut portion a of the protruding portion 1B serves as a resistance with respect to the vibration direction of the driving member 20A.
  • the flange portion b of the protruding portion 1B becomes a resistance against the vibration of the diaphragm 30 that vibrates in a direction different from the vibration direction of the drive member 20A. For this reason, in the speaker device 1 that transmits the vibration of the drive member 20A to the diaphragm 30 via the vibration direction converter 40, the speaker components 1A1 and 1A2 can be firmly fixed to each other.
  • a plurality of protruding portions 1B are arranged side by side along the vibration direction of the drive member 20A. For this reason, the shearing force accompanying the vibration of the drive member 20A is reduced by the plurality of protruding portions 1B. Moreover, the fixed state of the speaker structural members 1A1 and 1A2 fixed to each other is firmly maintained by the plurality of protruding portions 1B. Moreover, the durability of the speaker device 1 can be improved.
  • FIG. 15 is an explanatory diagram showing an application example of the speaker device according to the embodiment of the present invention. Since the electronic device 2 such as the flat panel display shown in FIG. 5A can reduce the thickness space necessary for installing the speaker device 1, the entire electronic device can be thinned. In addition, sufficient audio output can be obtained even in a thin electronic device.
  • the speaker device may be attached to the back side of the flat panel display.
  • FIG. 2B shows an automobile 3 provided with the speaker device according to the embodiment of the present invention.
  • the space in the vehicle can be expanded by making the speaker device 1 thinner.
  • the speaker device 1 according to the embodiment of the present invention is installed in the door panel, the protrusion of the door panel is eliminated and the operation space for the driver can be expanded.
  • sufficient sound output can be obtained, music and radio broadcasting can be enjoyed comfortably in the car even during high-speed driving with a lot of noise.
  • a hotel inn or training that can accommodate a large number of people, such as a house (building) intended for the residence of people, a meeting, a lecture, a party, etc.
  • the speaker device 1 When the speaker device 1 is installed in a facility or the like (building), the thickness space necessary for the installation of the speaker device 1 can be reduced, so that unnecessary space can be deleted and the space can be used effectively.
  • there are examples of providing rooms with audio / video equipment while living rooms without audio / video equipment are provided. In some cases, etc. are used as theater rooms.
  • the speaker device 1 Even in such a case, by using the speaker device 1, it is possible to easily convert a living room or the like into a theater room and to effectively use the space in the living room.
  • the speaker device 1 may be arranged at, for example, a ceiling or a wall in a living room.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)

Abstract

L'invention concerne un dispositif à haut-parleur (1) comprenant un diaphragme (30), une partie fixe (10) destinée à supporter le diaphragme (30) de manière à ce que ce dernier puisse être mis en vibration, et une unité d'attaque (20) destinée à appliquer des vibrations au diaphragme (30). L'unité d'attaque (20) est munie d'un élément d'attaque (20A) qui vibre sous l'effet d'un signal audio dans une direction différente de la vibration du diaphragme (30) et d'une unité de conversion de direction des vibrations (40) qui convertit les vibrations de l'élément d'attaque (20A) de sorte qu'elles soient orientées dans une direction formant une intersection avec la direction de vibration de l'élément d'attaque (20A) afin de faire vibrer le diaphragme (30). Le diaphragme (30), la partie fixe (10) et l'unité d'attaque (20) sont chacun configurés par un élément constitutif d'une pluralité d'éléments constitutifs utilisant le haut-parleur (1A) ((1A1) et (1A2)). Parmi la pluralité d'éléments constitutifs utilisant le haut-parleur (1A) ((1A1) et (1A2)) qui sont fixés les uns aux autres, l'un des éléments constitutifs utilisant le haut-parleur (1A1) est muni d'une partie faisant saillie (1B), et l'autre élément constitutif utilisant le haut-parleur (1A2) est muni d'une partie comportant un trou (1C) dans lequel est insérée la partie faisant saillie (1B), la partie faisant saillie (1B) faisant saillie dans une direction formant une intersection avec la direction de vibration de l'élément d'attaque (20A).
PCT/JP2010/067289 2010-10-01 2010-10-01 Dispositif à haut-parleur Ceased WO2012042675A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2010/067289 WO2012042675A1 (fr) 2010-10-01 2010-10-01 Dispositif à haut-parleur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2010/067289 WO2012042675A1 (fr) 2010-10-01 2010-10-01 Dispositif à haut-parleur

Publications (1)

Publication Number Publication Date
WO2012042675A1 true WO2012042675A1 (fr) 2012-04-05

Family

ID=45892178

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2010/067289 Ceased WO2012042675A1 (fr) 2010-10-01 2010-10-01 Dispositif à haut-parleur

Country Status (1)

Country Link
WO (1) WO2012042675A1 (fr)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61184395U (fr) * 1985-05-10 1986-11-17
JPH05267485A (ja) * 1992-03-24 1993-10-15 Toshiba Corp 半導体装置の防塵用ハウジング
JPH08156101A (ja) * 1994-12-12 1996-06-18 Rohm Co Ltd 回路基板に対する合成樹脂製部品の取付け装置
WO2003027777A1 (fr) * 2001-09-21 2003-04-03 Citizen Watch Co., Ltd. Boîtier de montre et procédé de fabrication
JP2005286489A (ja) * 2004-03-29 2005-10-13 Minebea Co Ltd スピーカおよびその製造法
JP2010009660A (ja) * 2008-06-25 2010-01-14 Hitachi Maxell Ltd 板ばね及び磁気テープカートリッジ
JP2010144908A (ja) * 2008-12-22 2010-07-01 Bridgestone Corp クリップ、衝撃吸収材、衝撃吸収材成形用金型及び衝撃吸収材取付構造
WO2010097974A1 (fr) * 2009-02-26 2010-09-02 パイオニア株式会社 Bobine acoustique pour un dispositif de haut-parleur, et dispositif de haut-parleur
WO2010097950A1 (fr) * 2009-02-27 2010-09-02 パイオニア株式会社 Section de conversion de direction de vibrations pour dispositif haut-parleur et dispositif haut-parleur

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61184395U (fr) * 1985-05-10 1986-11-17
JPH05267485A (ja) * 1992-03-24 1993-10-15 Toshiba Corp 半導体装置の防塵用ハウジング
JPH08156101A (ja) * 1994-12-12 1996-06-18 Rohm Co Ltd 回路基板に対する合成樹脂製部品の取付け装置
WO2003027777A1 (fr) * 2001-09-21 2003-04-03 Citizen Watch Co., Ltd. Boîtier de montre et procédé de fabrication
JP2005286489A (ja) * 2004-03-29 2005-10-13 Minebea Co Ltd スピーカおよびその製造法
JP2010009660A (ja) * 2008-06-25 2010-01-14 Hitachi Maxell Ltd 板ばね及び磁気テープカートリッジ
JP2010144908A (ja) * 2008-12-22 2010-07-01 Bridgestone Corp クリップ、衝撃吸収材、衝撃吸収材成形用金型及び衝撃吸収材取付構造
WO2010097974A1 (fr) * 2009-02-26 2010-09-02 パイオニア株式会社 Bobine acoustique pour un dispositif de haut-parleur, et dispositif de haut-parleur
WO2010097950A1 (fr) * 2009-02-27 2010-09-02 パイオニア株式会社 Section de conversion de direction de vibrations pour dispositif haut-parleur et dispositif haut-parleur

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