WO2005004184A1 - 電磁開閉装置 - Google Patents
電磁開閉装置 Download PDFInfo
- Publication number
- WO2005004184A1 WO2005004184A1 PCT/JP2004/009343 JP2004009343W WO2005004184A1 WO 2005004184 A1 WO2005004184 A1 WO 2005004184A1 JP 2004009343 W JP2004009343 W JP 2004009343W WO 2005004184 A1 WO2005004184 A1 WO 2005004184A1
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- WO
- WIPO (PCT)
- Prior art keywords
- movable
- shaft
- axis
- contact
- 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
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/02—Bases; Casings; Covers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/02—Bases, casings, or covers
- H01H2009/0278—Casings containing special noise reduction means, e.g. elastic foam between inner and outer casing
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/02—Bases; Casings; Covers
- H01H50/04—Mounting complete relay or separate parts of relay on a base or inside a case
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/16—Magnetic circuit arrangements
- H01H50/18—Movable parts of magnetic circuits, e.g. armature
- H01H50/30—Mechanical arrangements for preventing or damping vibration or shock, e.g. by balancing of armature
Definitions
- the present invention relates to, for example, an electromagnetic opening / closing device used for opening / closing an electric circuit in a mobile object running on electric power.
- the electromagnetic switchgear includes a resin body 11, an electromagnet device 2, a pair of fixed terminals 3, a movable contact 4, a shaft 5, and the like.
- the body 11 is formed in a box shape divided into two, and houses the electromagnetic switchgear main body therein.
- the housing 11 has left and right (same as the left and right in the figure) mounting tables 13 for mounting an electromagnetic switchgear on an external mounting portion. Further, the housing 11 has a lead-out groove (not shown) for exposing the connection portion 31 of the fixed terminal 3 from the inside to the outside in order to connect the connection portion 31 to an external circuit.
- the electromagnet device 2 includes a solenoid coil, upper and lower (same as upper and lower in the figure) yokes, and a force such as a movable iron core.
- the solenoid coil 21 is configured by winding a conductor on a cylindrical bobbin 2 la having a flange at the top and bottom, and both ends of the conductor are led out of the housing 11 (not shown).
- a first yoke 23 is provided from the middle to the upper surface of the inner peripheral surface of the solenoid coil 21, and a second yoke 24 is provided from the lower to the lower surface and the outer peripheral surface of the inner surface of the solenoid coil 21.
- the second yoke 24 forms a magnetic path and forms a magnetic gap inside the solenoid coil with magnetic poles facing each other.
- the movable iron core 22 is provided with a part thereof interposed in the above-described magnetic gap and a remaining part accommodated in the inner cylindrical portion of the second yoke 24.
- the movable iron core 22 is urged by a return spring 22a in a direction to widen the magnetic gap (downward in the figure). Therefore, when the solenoid coil 21 is excited, the movable iron core 22 moves upward to fill the magnetic gap. Then, when the excitation is stopped, it is moved downward by the return panel 22a.
- the fixed terminal 3 is configured such that a rectangular rectangular conductive plate is bent twice in the same direction and both ends are directed in the same direction.
- the fixed terminal 3 includes a connection portion 31 outside the body 11 and a fixed contact 32 facing downward inside the body 11.
- the movable contact 4 is provided with movable contacts 41 at both ends of a rectangular long conductive plate having a central portion bent downward so as to face the fixed contact 32, respectively. It is held inside a holding portion 51 formed at the upper part of the frame. The movable contact 4 is pressed against the ceiling of the holding portion 51 by the contact pressure spring 41a inside the holding portion 51.
- the shaft 5 is arranged on the center axis of the electromagnet device 2 with the lower end of a connecting shaft extending downward from the holding portion 51 fixed to the movable iron core 22.
- the shaft 5 can move up and down within the electromagnet device 2 within a predetermined range.
- the lower limit of the movement is a position where the stepped portion of the enlarged diameter portion of the shaft 5 contacts the through hole on the central axis of the first yoke 23, and a buffer 53a is provided at the contact position.
- the upper movement limit is a position where the upper end of the movable iron core 22 contacts the lower end of the first yoke 23.
- a yoke 64 forming a magnetic path and a pair of permanent magnets 65 for generating a magnetic field are provided outside the body 11 and on the side where the fixed contact 32 and the movable contact 41 come into contact with and separate from each other.
- the permanent magnets 65 are arranged with their magnetic poles facing each other in order to quickly extinguish an arc generated when the fixed contact 32 and the movable contact 41 come into contact with and separate from each other by the magnetic field of the permanent magnets.
- an arc is extinguished by bringing an arc into contact with the resin of the casing 11, and in this case, the arc extinguishing space is made up of a resin member that generates the arc extinguishing gas. It is necessary to enclose it, and again, there is a limit to miniaturization. Also, when a magnetic switching device is used in an electric vehicle, unlike a gasoline engine that uses explosive combustion as a driving source, a motor that directly generates torque is used as the driving source. For this reason, it is desired to further reduce the operation noise of the electromagnetic switching device, etc., in order to keep the environment inside the vehicle suitable.
- the present invention relates to an electromagnetic switching device, wherein a solenoid coil wound around one axis and having a hollow portion in one axis is provided in the hollow portion so as to be movable along the one axis.
- An electromagnet device having a second yoke provided on the one side, and a pair of fixed terminals each having a connection portion with an external circuit at one end of the one axis and having a fixed contact at the other end of the one axis.
- a movable contact that has a pair of movable contacts at both ends thereof that come into contact with and separate from the fixed contact, a holding part that holds the movable contact, and a holding part that extends from the holding part to the other end of the one axis.
- ⁇ ⁇ ⁇ of the first yoke Comprises a shaft having a connecting shaft which is fixed a hole in passing Ri said movable iron core, and a surrounding member for accommodating the movable contact and the fixed contact.
- the pair of movable contacts are respectively moved with respect to the pair of fixed contacts via the shaft by moving the movable core along the one axis by the electromagnet device.
- the enclosing member is formed in a box shape having an opening at the other end of the one axis, and penetrates and holds each fixed contact point side of the pair of fixed terminals from the bottom of the enclosing member.
- the surrounding member and at least the first yoke are substantially denser.
- a closed space is formed, and the movable contact and the fixed contact are housed in the substantially closed space.
- a substantially sealed space is formed by the surrounding member and at least the first yoke, and the movable contact and the fixed contact are housed in the substantially sealed space.
- the electromagnetic switchgear can be downsized. That is, since metal has higher thermal conductivity than the molding material (resin), the performance of cooling the arc (absorbing energy) can be enhanced.
- the first yoke made of metal is used as a component of the substantially closed space, the arc extinguishing performance is enhanced, and the contact can be quickly interrupted.
- the members of the electromagnetic device can be shared, and the number of parts of the electromagnetic switching device can be reduced, thereby reducing the size and cost.
- the electric circuit side (primary side) that is opened and closed and the control side of the electromagnetic switchgear that prevent the arc from leaking out of this space do not damage the solenoid coil of the electromagnet device. (Secondary side) Insulation performance can be secured.
- the present invention in the above-described improved invention, further comprises a housing for housing the electromagnetic switching device main body with the connecting portion protruding to the outside, and a gap between the housing and the substantially closed space.
- a potting material is filled.
- the gap between the body and the substantially closed space is filled with the potting material. Therefore, by using a material having high thermal conductivity as the potting material, an arc generated between the contacts can be obtained.
- the components (the enclosing member and at least the first yoke) of the substantially closed space heated by the heat can be quickly cooled, and thus the arc energy can be rapidly absorbed to interrupt the arc.
- the potting material suppresses the propagation of vibration to the inner body of the electromagnetic switchgear body, so that a silent effect can be obtained.
- the use of a potting material allows the container to be composed of only one part, eliminating the need for a cover member, and thus reducing costs.
- the distance between the inner wall of the surrounding member and the movable contact is preferably narrow at a portion near the shaft and wide at a portion far from the shaft.
- the distance between the inner wall of the enclosing member and the movable contact is wider at a portion closer to the shaft and narrower at a portion farther from the shaft.
- the present invention is based on the improved invention described above, and further comprises a storage portion having a through hole at the other end of the shaft and fixed to the bottom of the enclosing member at the bottom.
- a flange that slides in the axial direction on the inner surface of the storage portion in the portion, a through hole is provided in the flange, and a valve that opens and closes the through hole is provided; and the through hole includes the flange.
- the storage portion is filled with gas, liquid, or particles that penetrate one end of the shaft, close the through hole, and resist the forward and backward movement of the shaft along the one axis.
- the mass body that vibrates along the one axis by being elastically deformed in order to suppress the movement of the moving part that moves as the movable iron core advances and retreats in the improved invention described above. is preferably provided in at least one moving part.
- the present invention in the above-described improved invention, preferably includes a step that is substantially fitted to the opposing surfaces of the first yoke and the movable iron core.
- the present invention is based on the improved invention described above, and further includes a housing for housing the electromagnetic switching device main body in a state where the connection portion is protruded to the outside.
- a mounting base having a through hole through which a fastening member to be attached to the part is inserted, wherein a nove made of a vibration-damping steel plate is inserted into the through hole, and the container is attached with the nove interposed therebetween. It is preferable that a fastening member be passed through the through hole of the base and the pipe and fastened and fixed to an external mounting portion.
- the present invention is based on the improved invention described above, and further includes a container for housing the electromagnetic switching device main body in a state where the connection portion is protruded to the outside.
- a mounting base having an insertion hole through which a fastening member to be attached to the base is inserted is provided.
- a soft annular member filled with a magnetic fluid, an MR fluid, or an ER fluid is provided.
- the vessel body is fastened and fixed to an external mounting portion by passing a fastening member through the insertion hole of the mounting base and the annular member with the annular member interposed therebetween.
- FIG. 1 is a cross-sectional view of the electromagnetic switching device according to Embodiment 1 of the present invention, taken along the left, right, top, and bottom planes.
- FIG. 2 is a top view of the same electromagnetic switching device without a potting process.
- FIG. 3 is a cross-sectional view taken along the line C-C in FIG. 2.
- FIG. 4 is a sectional view taken along line AA of FIG. 1.
- FIG. 5 is an exploded perspective view of the electromagnetic switching device.
- FIG. 6 is a perspective view of the same electromagnetic switching device without a potting process.
- FIG. 7 is a perspective view of the electromagnetic switching device.
- FIG. 8 is a sectional view taken along line DD of FIG. 1.
- FIG. 9 is a cross-sectional view of the electromagnetic switching device according to Embodiment 2 of the present invention, taken along the left, right, top, and bottom planes.
- FIG. 11 is a cross-sectional view of the vicinity of a storage section of an electromagnetic switching device according to Embodiment 3 of the present invention.
- FIG. 12 is a sectional view of the vicinity of a storage section of an electromagnetic switching device according to Embodiment 4 of the present invention.
- FIG. 13 is a cross-sectional view of an electromagnetic switching device according to Embodiment 5 of the present invention, taken along left, right, top, and bottom planes.
- FIG. 14 is a sectional view for explaining the operation of the first yoke and the movable core of the electromagnetic switching device.
- FIG. 15 is a diagram showing a change in magnetic force between a first yoke and a movable iron core of the electromagnetic switching device.
- FIG. 16 is a cross-sectional view of the vicinity of a storage section of an electromagnetic switching device according to Embodiment 6 of the present invention.
- FIG. 17 is an external view showing an attached state of an electromagnetic switching device according to Embodiment 7 of the present invention, and a portion thereof. It is sectional drawing.
- FIG. 18 is an external view and a partial cross-sectional view showing an attached state of an electromagnetic switching device according to Embodiment 8 of the present invention.
- FIG. 19 is a cross-sectional view of a conventional electromagnetic switching device.
- FIG. 20 is a sectional view taken along the line E_E in FIG. 19.
- FIG. 21 is a side view of the electromagnetic switching device.
- the electromagnetic switching device 1 includes an electromagnet device 2 having a movable iron core 22, a pair of fixed terminals 3 each having a fixed contact 32, and a movable contact 4 having a movable contact 41 at the left and right ends. , A shaft 5, and a surrounding member 6 for accommodating the movable contact 41 and the fixed contact 32.
- the pair of movable contacts 41 are respectively connected to the pair of fixed contacts 32 via the shaft 5.
- the fixed contacts 32 are electrically connected to each other and insulated from each other.
- the electromagnet device 2 includes a solenoid coil 21, first and second yokes 23 and 24 arranged vertically, a movable iron core 22, and the like.
- the solenoid coil 21 is configured by winding a conductive wire around a hollow bobbin 21 a having a flange at the top and bottom, and both ends of the conductive wire are led out of the housing 11.
- the first yoke 231S extends from the middle to the upper surface of the inner peripheral surface of the solenoid coil 21.
- a second yoke 24 is provided from the middle to the lower surface and part of the outer peripheral surface of the solenoid coil 21.
- the first yoke 23 and the second yoke 24 form a magnetic path, and also form a magnetic gap in the solenoid coil with the magnetic poles facing each other (the shapes of the first and second yokes 23, 24 are See Figure 5 and Figure 4).
- the movable iron core 22 is provided with a part thereof interposed in the above-described magnetic gap, and the remaining part is accommodated in the inner cylindrical portion of the second yoke 24 so as to be movable vertically.
- the movable core 22 is urged by the return panel 22a in a direction (downward) to widen the magnetic gap. Accordingly, when the solenoid coil 21 is excited, the movable iron core 22 moves upward to carry the magnetic gap, and when the excitation is stopped, it moves downward by the return panel 22a.
- the fixed terminal 3 is composed of a pair of conductors having a connection part 31 with an external circuit on the upper end and a fixed contact 32 on the lower end, and is provided on the upper part of the surrounding member 6 so as to be divided into right and left. .
- a thread groove is formed in the connection portion 31 so that the external terminal can be fixed using a nut.
- the movable contact 4 is configured such that a movable contact 41 is brought into contact with and separated from the left and right ends of a substantially rectangular and long conductive plate while facing the fixed contact 32, and a central portion thereof is connected to a shaft. 5 is held by a holding portion 51 formed at the upper part. That is, the movable contact 4 has its upper surface pressed by the flange portion of the holding portion 51 and its lower surface is urged upward by the contact pressure panels 41a and 41b.
- the shaft 5 is a rod-like body that can move up and down within a predetermined range along the central axis in the electromagnet device 2.
- a lower end of a connecting shaft 52 extending downward from a holding portion 51 at an upper end is fixed to the movable iron core 22, and is arranged on the central axis of the electromagnet device 2.
- the lower limit of the movement of the shaft 5 is such that the enlarged diameter portion formed by a stopper 53 formed, for example, of a C-ring is provided in the middle of the connecting shaft of the shaft 5 through a through hole on the center axis of the first yoke 23. This is a position where it collides with 23a, and a cushioning material 53a is provided at the collision position.
- the upper limit of the movement is a position where the upper end of the movable iron core 22 contacts the lower end of the first yoke 23.
- the container 11 is formed of a resin molded product having an opening at an upper side, and houses the electromagnetic opening / closing device main body through the opening.
- the housing 11 has left and right mounting bases 13 for mounting the electromagnetic switching device 1 to a mounting portion of another device when the electromagnetic switching device 1 is used.
- the housing 11 is fixed to an external mounting portion by bolts and nuts using the through holes 13a provided in the mounting base 13.
- the surrounding member 6 houses the movable contact 41 and the fixed contact 32.
- Enclosure member 6 opens downward It is formed into a box shape with a mouth 61, and is fixed from the outside to the inside of the insertion holes provided on the left and right of the bottom 62 (in the illustration, the box is in a state of being turned down and the bottom is on the top)
- the fixed contact 32 side of the terminal 3 is inserted and held.
- the container 6 is formed of, for example, an insulating material such as a molding resin or ceramic.
- a partition wall 62a for spatially separating the connection portions 31 of the left and right fixed terminals 3 from each other is provided.
- the surrounding member 6 has an outward flange around the opening 61, and as shown in Fig. 2 using mounting holes (see Fig. 5) provided at four corners of the flange.
- the first yoke 23 is fixed to the upper surface of the first yoke 23 by screws 63a.
- a substantially sealed space 63 is formed by the surrounding member 6 and the first yoke 23.
- the substantially enclosed space 63 there are a fixed contact 32 and a movable contact 41, and therefore a movable contact 4 holding the movable contact 41, a shaft 5 holding the movable contact 4 and moving it up and down, and its accompanying parts.
- Certain contact pressure panels 41a, 41b, etc. are stored.
- the fixed contact 32 and the movable contact 41 are brought into contact with and separated from each other, and an arc generated by the contact and separation is extinguished.
- a pair of permanent magnets 65 are provided on the outer periphery of the surrounding member 6 so as to sandwich the surrounding member 6 and held by a yoke 64 for forming a magnetic path.
- the permanent magnets 65 are arranged with their magnetic poles facing each other in order to quickly extinguish an arc generated when the fixed contact 32 and the movable contact 41 come into contact with and separate from each other by the magnetic field of the permanent magnet.
- Each of the components shown in FIG. 5 described above is assembled into a main body 10 of the electromagnetic switchgear by assembling them in a predetermined procedure, except for the body 11, as shown in FIG.
- the electromagnetic switching device body 10 is housed in a housing 11, and a gap 12 between the electromagnetic switching device body 10 and the housing 11 is filled with a potting material 12a as shown in FIG.
- the contact pressure spring 41a disposed above is a weak (small spring constant) coil spring
- the lower contact pressure spring 41c is a strong (large spring constant) coil spring.
- These two strong coil springs are separated by a stopper 41b having a protruding portion above and used in series vertically.
- the contact pressure spring 41a which is a weak coil spring, is compressed until the leading end of the stopper 41b contacts the lower surface of the movable contact 4, and after the leading end contacts the movable contact 4, Means that only the contact pressure panel 41c, which is a strong coil panel, is compressed.
- the electromagnetic opening and closing device 1 it is possible to suppress the occurrence of operation failure called “heteration” that occurs when the difference between the electromagnet attractive force and the panel load becomes small.
- the stopper 41b by using the stopper 41b, the strokes of the contact pressure springs 41a and 41c can be determined, and variation in panel load can be reduced.
- the potting material 12a fills the gap 12 between the case 11 and the electromagnetic switchgear main body, and thus the gap between the substantially closed space 63.
- the enclosing member 6 which is a component of the substantially closed space heated by the arc generated between the fixed contact 32 and the movable contact 41 and the first yoke are used. 23 can be cooled quickly. Accordingly, the arc can be extinguished by quickly absorbing the heat energy of the generated arc.
- the potting material 12a suppresses the propagation of vibration to the internal electromagnetic switching device main body body 11, so that a silent effect can be obtained.
- the use of the potting material 12a can reduce the cost by making the body 11 one piece and eliminating the need for a lid member.
- Embodiments 2 to 8 described below add a function of reducing the operation sound of the electromagnetic switch to the electromagnetic switch of the first embodiment.
- the electromagnetic switchgear 1 is provided with a storage portion 8 having a downwardly-facing through hole 81 at the center of the bottom 62 of the surrounding member 6, and closing the upper portion of the shaft 5 through the through hole 81.
- This is different from the electromagnetic switching device 1 of the first embodiment (for example, see FIG. 1).
- the storage section 8 is filled with gas, liquid, or particles that provide resistance to vertical movement when the tip of the shaft 5 moves up and down (moves forward and backward).
- Embodiment 2 of this configuration gas, liquid, or particle resistance acts on the movement of the shaft 5 to relieve the impact when the movable contact 41 comes into contact with or separates from the fixed contact 32.
- the operating sound of the electromagnetic switching device 1 can be reduced.
- the resistance of the gas, liquid, or particles does not work, so that the electromagnetic switchgear 1 has no resistance to excess force. There is no performance degradation (side effect) such as reduced vibration or increased drive voltage.
- the operating noise of the electromagnetic switching device 1 is reduced by moving the movable core 22 such as the shaft 5, the movable contact 4, and the movable core 22 itself (these are the moving parts).
- a movable part M that is, generally, it is sufficient to provide the movable section M with a buffer section for suppressing the movement.
- the storage section 8 for filling the above-mentioned fluid (gas, liquid) or fluid (particle) serving as resistance also realizes this buffer section. Therefore, such a buffer portion is not limited to the surrounding member 6 as described above, and may be provided at a portion that suppresses the movement of the movable iron core 22 below.
- the enclosing member 6 is provided with the storage portion 8.
- FIG. 11 shows the storage unit 8 of the electromagnetic switching device 1 according to the third embodiment.
- the electromagnetic switchgear according to the third embodiment has a flange 54 formed at the upper end of the shaft 5 to slide vertically on the inner surface of the housing 8, and a through hole 57 is formed in the flange 54 and the through hole 57 is formed in the flange 54.
- a valve 58 that opens and closes from the top of the shaft 54 is provided.
- the upper end of the shaft 5 including the flange 54 is passed through the through-hole 81 to close the through-hole 81, and the resistance to the forward and backward movement of the shaft 5 along the vertical axis is reduced.
- the storage portion 8 is filled with the following gas, liquid, or particles.
- Embodiment 7 of the above configuration when the shaft 5 moves upward, the moving speed of the movable contact 4 can be reduced by the resistance force of the gas, liquid, or particles in the storage section 8.
- the valve 58 opens, so that the moving speed of the movable contact 4 cannot be hindered.
- the movable contact 4 moves in the direction in which the movable contact 41 is separated from the fixed contact 32, if the moving speed is reduced, the performance as the electromagnetic switching device 1 is reduced.
- opening 58 to prevent the moving speed of the movable contact 4 from decelerating it is possible to reduce the operation sound without lowering the performance of the electromagnetic switching device 1.
- FIG. 12 shows the storage unit 8 of the electromagnetic switching device 1 according to the fourth embodiment.
- the electromagnetic switchgear 1 of the fourth embodiment is provided with an enclosure S3 in which a liquid is sealed at a location where at least one of the movable parts M of the movable iron core 22, the shaft 5 and the movable contact 4 collides.
- a donut-shaped enclosure S3 having a hole at the center is fixed to the through hole 81 of the storage unit 8, and the through hole 81 and the tip end portion on the upper end side of the shaft 5.
- Intervenes between A flange 54 is provided at the tip of the shaft 5 inside the storage portion 8, and a flange (enlarged portion) 55 is also provided outside the storage portion 8 of the shaft 5.
- Embodiment 8 of the above configuration when the shaft 5 moves up and down in the vertical direction, the enclosure S3 is pushed by the flanges 54 and 55 and moves into and out of the storage section 61.
- the generated shock can be mitigated by the viscosity of the liquid in the enclosure S3, and the operating noise can be reduced.
- FIGS. 13, 14, and 15 are cross-sectional views of the electromagnetic switchgear 1 according to the fifth embodiment, respectively.
- 7 shows a magnetic pole structure of the first yoke 23 and the movable iron core 22 of the closing device 1 facing each other, and a change in magnetic force between the magnetic poles.
- the electromagnetic switchgear 1 of the fifth embodiment has a step substantially fitted to the opposing surfaces of the first yoke 23 and the movable core 22, that is, a recess 23 c on the first yoke 23 side and a protrusion on the movable core 22 side. It has a part 22c.
- the side surface of the uneven portion is not limited to the vertical surface as shown in FIG. 14, but may be a tapered surface.
- the mutual distance X between the respective magnetic pole opposing surfaces is reduced from the state farther from the step shown in the left diagram of FIG. 14 to the height of the step shown in the right diagram of FIG.
- the magnetic flux F utilizes a decrease in magnetic attraction generated by the magnetic flux F diverging from the moving direction of the movable core 22 to the side.
- the X axis is the moving distance of the movable core 22 (the downward direction is positive in FIG. 13), and the vertical axis is the panel load Fs (panel biasing force) and the magnetic attraction force Fm.
- the panel load Fs urges the movable iron core 22 in the positive X direction
- the magnetic attraction Fm urges the negative X direction.
- the distance L1 is the distance between the contacts, and the distance L2 is the overstroke distance, that is, the distance over which the shaft 5 further rises after the contacts come into contact to apply the urging force of the contact pressure panels 41a and 41b between the contacts. It is. In the section XI-X2, only the return spring 22a contributes to the spring load Fs, and in the section X2-0, contributions of the contact pressure springs 41a and 41b in addition to the return spring 22a are added.
- FIG. 16 shows a part around the movable iron core 22 of the electromagnetic switching device 1 according to the sixth embodiment.
- the electromagnetic switching device 1 according to the nineteenth embodiment includes a mass body that vibrates along the moving direction of the movable portion M by elastically deforming at least one movable portion M of the movable core 22, the shaft 5, and the movable contact 4. (Weight) m is added.
- FIG. 16 shows a state in which a storage frame 294 having a built-in mass body m locked by a coil spring 295 is attached to a shaft 5 as a movable part M.
- the mass of the movable part M is M and the mass of the mass body m is m
- the mass of the mass body m is m
- the mass body m fixed to the movable portion M in a vibrable state continues to move with a kinetic energy of l / 2 'm'V'V after the collision.
- FIG. 17 shows a state in which the electromagnetic switchgear 1 of the seventh embodiment is mounted on an external mounting portion.
- the electromagnetic switching device 1 according to the seventh embodiment is mounted on a mounting portion 9 such as a mounting plate of an electric vehicle, for example, via a mounting base 13 having a through hole 13a formed in a housing 11.
- the body 11 is inserted into the insertion hole 13a with a pipe 14 made of a vibration-damping steel plate formed in a tubular shape and having an outward flange at one end, and the pipe 14 is interposed therebetween.
- the bolt B of the fastening member is inserted into the through-hole 13a of the thirteen, and the fastening member 9 is fastened and fixed to the mounting portion 9 using the nut N as another fastening member.
- the vibration transmitted from the electromagnetic switching device 1 to the mounting portion 9 can be reduced, the operating sound of the electromagnetic switching device 1 can be reduced.
- FIG. 18 shows a state in which the electromagnetic switchgear 1 of the eighth embodiment is mounted on an external mounting portion.
- the electromagnetic switchgear 1 of the eighth embodiment is mounted on a mounting portion 9 such as a mounting plate of an electric vehicle via a mounting base 13 having a through hole 13a formed in a housing 11. Attached.
- the magnetic fluid, MR fluid, or ER flow A flexible annular member 15 enclosing the body is provided, and the body 11 is formed by inserting a bolt B of a fastening member through the insertion hole 13a of the mounting base 13 and the annular member 15 with the annular member 15 interposed therebetween. It is fastened and fixed to the mounting portion 9 using a nut N, which is another connecting member.
- the annular member 15 When the enclosed fluid is a magnetic fluid or an MR fluid, the annular member 15 is hardened by the magnetic field when the electromagnet device 2 is energized, and becomes softer when the electromagnet device 2 is not energized than when the electromagnet device 2 is energized. . Also, when the enclosed fluid is an ER fluid, the ring member 15 is harder than the electromagnet device 2 when the electromagnetic stone device 2 is energized by applying a voltage force S to the ER fluid when the electromagnetic stone device 2 is energized, and the electromagnet device 2 is not energized. At times, when the ER fluid loses force and voltage, it becomes softer than when the electromagnet device 2 is energized.
- the operation noise can be reduced.
- the ring-shaped member 15 can be made harder when the electromagnet device 2 is energized, and the ring-shaped member 15 can be made softer when the electromagnet device 2 is not energized, which is suitable for an electric vehicle. That is, before the movable contact 41 comes into contact with the fixed contact 32, the electric vehicle is stopped, and since the ring-shaped member 15 is soft, when the movable contact 41 comes into contact with the fixed contact 32, the mounting portion of the electric vehicle is stopped. The propagation of vibration to 9 can be suppressed.
- the electromagnetic switchgear 1 can be tightly fixed to the mounting portion 9 to prevent resonance and the like.After the movable contact 41 is separated from the fixed contact 32, the ring-shaped member 15 is softened. However, propagation of vibration to the mounting portion 9 can be suppressed.
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Abstract
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Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/535,337 US7157996B2 (en) | 2003-07-02 | 2004-07-01 | Electromagnetic switching device |
| DE112004000087T DE112004000087T5 (de) | 2003-07-02 | 2004-07-01 | Elektromagnetische Schaltvorrichtung |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003-270346 | 2003-07-02 | ||
| JP2003270346A JP2005026182A (ja) | 2003-07-02 | 2003-07-02 | 電磁開閉装置 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2005004184A1 true WO2005004184A1 (ja) | 2005-01-13 |
Family
ID=33562611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2004/009343 Ceased WO2005004184A1 (ja) | 2003-07-02 | 2004-07-01 | 電磁開閉装置 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US7157996B2 (ja) |
| JP (1) | JP2005026182A (ja) |
| CN (1) | CN100345237C (ja) |
| DE (1) | DE112004000087T5 (ja) |
| WO (1) | WO2005004184A1 (ja) |
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| CN103999182A (zh) * | 2012-03-12 | 2014-08-20 | 富士电机机器制御株式会社 | 开关 |
| CN106847617A (zh) * | 2017-01-22 | 2017-06-13 | 苏州安来强电子科技有限公司 | 直流密封型接触器的封装结构 |
| CN113175555A (zh) * | 2021-05-21 | 2021-07-27 | 嘉兴市大宇机电有限公司 | 一种脉冲阀用电磁控制执行器 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100345237C (zh) | 2007-10-24 |
| US20060050466A1 (en) | 2006-03-09 |
| CN1701403A (zh) | 2005-11-23 |
| JP2005026182A (ja) | 2005-01-27 |
| US7157996B2 (en) | 2007-01-02 |
| DE112004000087T5 (de) | 2005-11-03 |
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