WO2019131180A1 - Oscillating motor - Google Patents

Oscillating motor Download PDF

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Publication number
WO2019131180A1
WO2019131180A1 PCT/JP2018/045912 JP2018045912W WO2019131180A1 WO 2019131180 A1 WO2019131180 A1 WO 2019131180A1 JP 2018045912 W JP2018045912 W JP 2018045912W WO 2019131180 A1 WO2019131180 A1 WO 2019131180A1
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WO
WIPO (PCT)
Prior art keywords
damper
vibration motor
coil
elastic member
substrate
Prior art date
Application number
PCT/JP2018/045912
Other languages
French (fr)
Japanese (ja)
Inventor
村田　充
然自 森
Original Assignee
日本電産セイミツ株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2017252083A external-priority patent/JP2019118228A/en
Priority claimed from JP2017252086A external-priority patent/JP2019118229A/en
Application filed by 日本電産セイミツ株式会社 filed Critical 日本電産セイミツ株式会社
Publication of WO2019131180A1 publication Critical patent/WO2019131180A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
    • B06B1/04—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with electromagnetism
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K33/00—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system
    • H02K33/02—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with armatures moved one way by energisation of a single coil system and returned by mechanical force, e.g. by springs

Definitions

  • the present invention relates to a vibration motor.
  • vibration motors There are two types of vibration motors: one that vibrates in the lateral direction and the other that vibrates in the vertical direction. A human being who is a user is more likely to feel vertical vibration than horizontal vibration.
  • An example of a conventional longitudinal vibration type linear vibration motor is disclosed in Patent Document 1.
  • the vibration motor of Patent Document 1 includes a fixing portion, a magnetic field portion, a substrate, a vibrating portion, and an elastic member.
  • the fixing portion has a case whose lower portion is opened and a bracket which seals the internal space of the case.
  • the magnetic field part has a magnet fixed on the bracket and a yoke plate fixed on the magnet.
  • the vibrating portion has a coil and a mass body.
  • the substrate is fixed to the lower surface of the coil.
  • the elastic member is disposed between the case and the vibrator.
  • the coil has an inner diameter greater than the outer diameter of the opposing magnet, and a portion of the magnet is insertable into the space formed by the coil.
  • the vibrating portion vibrates in the vertical direction by the interaction of the magnetic field generated in the coil and the magnetic field formed by the magnet.
  • the lead wire may come into contact with the elastic member at the time of a drop impact and the lead wire may be broken.
  • the present invention has an object to provide a vibration motor that can suppress breakage of a lead wire drawn from a coil at the time of drop impact.
  • An exemplary vibration motor of the present invention comprises a stationary part having a housing and a coil; A vibrator including a magnet and vertically and vibratably supported with respect to the stationary portion; An elastic member disposed between the housing and the lower surface of the vibrator; Equipped with The lead wire derived from the coil is covered by the elastic member from above, A damper is disposed on the lower surface of the vibrator.
  • Another exemplary vibration motor of the present invention comprises a stationary part having a housing, a coil and a substrate; A vibrator including a magnet and vertically and vibratably supported with respect to the stationary portion; An elastic member, Equipped with The coil, the substrate, the vibrator, and the elastic member are accommodated in the housing.
  • the elastic member is disposed between the housing and the lower surface of the vibrator.
  • the lead wire derived from the coil is electrically connected to the substrate and covered with the elastic member from above,
  • a damper is disposed on the substrate to cover the connecting portion of the conducting wire to the substrate from above.
  • the vibration motor of the present invention it is possible to suppress the disconnection of the lead wire derived from the coil at the time of drop impact.
  • FIG. 1 is a perspective view showing the appearance of a vibration motor according to an embodiment of the present invention.
  • 2 is a cross-sectional perspective view cut along the line AA of FIG. 1 in the first embodiment.
  • FIG. 3 is a cross-sectional view taken along a line AA of FIG. 1 in the first embodiment.
  • FIG. 4 is a partial cross-sectional perspective view of the vibration motor cut downward.
  • FIG. 5 is a perspective view of the coil fixing structure of the first embodiment.
  • FIG. 6A is a plan view showing one configuration example of the damper of the first embodiment.
  • FIG. 6B is a plan view showing a modification of the damper of the first embodiment.
  • FIG. 7 is a cross-sectional view of a vibration motor using a damper according to a modification of the first embodiment.
  • FIG. 8 is a cross-sectional perspective view cut along the line AA of FIG. 1 in the second embodiment.
  • FIG. 9 is a cross-sectional view taken along the line AA of FIG. 1 in the second embodiment.
  • FIG. 10 is a perspective view of the coil fixing structure of the second embodiment.
  • FIG. 11 is a perspective view showing a configuration in which a damper is disposed in the coil fixing structure of the second embodiment.
  • FIG. 12A is a plan view showing one configuration example of the damper of the second embodiment.
  • FIG. 12B is a plan view showing a first modified example of the damper of the second embodiment.
  • FIG. 13 is a perspective view showing a configuration in which a damper according to a second modification is arranged in the coil fixing structure of the second embodiment.
  • FIG. 14 is a perspective view showing a configuration in which a damper according to a third modification is arranged in the coil fixing structure of the second embodiment.
  • the direction in which the central axis J of the vibration motor extends is referred to as "vertical direction”.
  • the upper side in the drawing of FIG. 2 is the upper side in the vertical direction.
  • a radial direction centered on the central axis J is simply referred to as “radial direction”
  • a circumferential direction centered on the central axis J is simply referred to as “circumferential direction”.
  • the “vertical direction” described above does not indicate the positional relationship or direction when it is incorporated into an actual device.
  • Embodiment 1 First, a vibration motor according to a first embodiment of the present invention will be described.
  • FIG. 1 is a perspective view showing the appearance of a vibration motor 15 according to the present embodiment.
  • FIG. 2 is a cross-sectional perspective view taken along line AA in FIG.
  • FIG. 3 is a cross-sectional view taken along the line AA in FIG.
  • the vibration motor 15 roughly includes a stationary unit 10, a vibrating body 7, an elastic member 8, and a damper 9.
  • the stationary unit 10 includes a housing C ⁇ b> 1, an FPC (flexible printed circuit board) 3, a coil 4, a shaft 5, and a yoke portion 6.
  • the case C1 has a base plate 1 and a case 2.
  • the base plate 1 is a plate-like member made of, for example, a cold-rolled steel plate.
  • the base plate 1 spreads in a direction perpendicular to the central axis J.
  • the case 2 is a cylindrical cover member having a lid 21 at its upper end. That is, the case 2 has an opening 22 at the lower end.
  • Case 2 is made of, for example, a SUS material.
  • the base plate 1 has a substantially disk-shaped first base portion 11 and a substantially rectangular plate-shaped second base portion 12, and the first base portion 11 and the second base portion 12 are connected. It has composition.
  • the second base 12 is disposed outside the case 2.
  • the FPC 3, the coil 4, the shaft 5, the yoke portion 6, the vibrating body 7, the elastic member 8, and the damper 9 are accommodated in the housing C ⁇ b> 1.
  • the FPC 3 is a substrate having a wiring for supplying a current to the coil 4 and has a thickness in the vertical direction.
  • the FPC 3 has flexibility and is fixed on the base plate 1 by an adhesive or an adhesive sheet.
  • the FPC 3 has a substantially disk-shaped first substrate portion 31 and a substantially rectangular plate-shaped second substrate portion 32, and has a configuration in which the first substrate portion 31 and the second substrate portion 32 are connected.
  • the first substrate unit 31 is disposed on the first base unit 11.
  • the first substrate portion 31 has a first land portion L1 and a second land portion L2 (not shown in FIG. 2). Each of the first land portion L1 and the second land portion L2 extends in a circular arc in the circumferential direction on the radially outer side of the coil 4, and is exposed upward.
  • a first conductive wire 41 and a second conductive wire 42 (not shown in FIG. 2) derived from the coil 4 are electrically connected to each of the first land portion L1 and the second land portion L2 by soldering or the
  • the second substrate unit 32 is disposed on the second base unit 12.
  • the second substrate portion 32 has a first terminal portion T1 and a second terminal portion T2 exposed upward.
  • the first terminal portion T1 is connected to the first land portion L1
  • the second terminal portion T2 is connected to the second land portion L2 by wiring.
  • current can be supplied to the coil 4 by externally applying a voltage to the first terminal portion T1 and the second terminal portion T2.
  • FPC 3 A more detailed configuration of the FPC 3 will be described later. Also, instead of the FPC 3, it is possible to use a rigid substrate having no flexibility.
  • the shaft 5 has a column extending in the vertical direction as a whole, and has a base 51 and a protrusion 52.
  • the shaft 5 is made of, for example, cutting steel and has magnetism.
  • the base 51 has a cylindrical shape extending in the vertical direction.
  • the protrusion 52 has a cylindrical shape that protrudes downward from the base 51.
  • the diameter of the protrusion 52 is smaller than the diameter of the base 51.
  • the first base portion 11 has a fixing portion 111 which protrudes upward around the central axis J.
  • the fixing portion 111 penetrates the first substrate portion 31 of the FPC 3 in the vertical direction.
  • the fixing portion 111 has a through hole 111A penetrating in the vertical direction.
  • the shaft 5 is fixed to the fixing portion 111 by fitting the protrusion 52 into the through hole 111 ⁇ / b> A and placing the base portion 51 on the fixing portion 111. Fixing of the shaft 5 is performed by press-fitting or caulking at the place where the protrusion 52 is fitted.
  • the coil 4 is configured by winding a coil wire made of, for example, a fusion polyurethane copper wire along the up and down direction around the central axis J.
  • the lower portion of the coil 4 is fitted on the radially outer side of the fixing portion 111.
  • the lower end surface of the coil 4 is fixed to the first substrate portion 31 by an adhesive or an adhesive sheet.
  • the coil 4 is disposed radially outward of the shaft 5.
  • the yoke portion (back yoke) 6 is made of, for example, a cold-rolled steel plate and has magnetism.
  • the yoke portion 6 has a bottom portion 61 and a wall portion 62.
  • the bottom portion 61 has a substantially disc shape having a thickness in the vertical direction.
  • the wall 62 has a cylindrical shape projecting downward from the outer edge of the bottom 61. That is, the inner peripheral surface of the wall portion 62 is located radially outward of the outer peripheral surface of the coil 4 and radially opposed to the outer peripheral surface.
  • the lower surface of the bottom portion 61 is fixed to the upper end surface of the base portion 51 by adhesion or an adhesive sheet, whereby the yoke portion 6 is fixed to the shaft 5.
  • the vibrating body 7 has a magnet 71, a weight 72, and a pole piece 73.
  • the magnet 71 is made of, for example, a sintered neodymium magnet, and has a cylindrical shape having an annular shape in top view.
  • the weight 72 is made of, for example, a tungsten alloy, and has a substantially cylindrical shape having an annular shape in top view.
  • the magnet 71 is disposed radially inward of the weight 72.
  • the outer peripheral surface of the magnet 71 and the inner peripheral surface of the weight 72 are fixed by an adhesive or an adhesive sheet.
  • the pole piece 73 is made of, for example, a SUS material, and is an annular plate member having magnetism. The pole piece 73 is disposed below the magnet 71 and fixed to the lower surface of the magnet 71 by an adhesive or adhesive sheet.
  • the elastic member 8 is a leaf spring member made of, for example, a SUS material.
  • the elastic member 8 includes a first ring portion (first connection portion) 81, a second ring portion (second connection portion) 82 located below the first ring portion 81, a first ring portion 81, and a second ring portion 81. And three connection parts 83 for connecting the ring part 82.
  • connection portions 83 extending in the circumferential direction while facing radially outward Ru.
  • the elastic member 8 is disposed between the vibrating body 7 and the first base portion 11.
  • the coil 4 is disposed radially inward of the first ring portion 81.
  • the elastic member 8 is fixed to the base plate 1 by fixing the lower surface of the second ring portion 82 to the upper surface of the first base portion 11 by welding or fusion bonding.
  • the elastic member 8 is fixed to the vibrating body 7 by fixing the upper surface of the first ring portion 81 to the lower surface of the pole piece 73 by welding or fusion bonding.
  • the vibrating body 7 is supported by the elastic member 8 so as to be capable of vibrating in the vertical direction.
  • the inner circumferential surface of the magnet 71 is located radially outward of the outer circumferential surface of the yoke portion 6 and radially opposed to the outer circumferential surface.
  • the vibration motor 15 is a longitudinal vibration linear vibration motor.
  • the radial distance between the yoke portion 6 and the magnet 71 is shortened, and the short portion is elongated in the vertical direction.
  • the power of the vibration motor 15 can be increased.
  • it is not necessary to increase the thickness of the bottom portion 61 it is possible to suppress an increase in the size of the vibration motor 15 in the vertical direction.
  • it is not necessary to shorten the length of the coil 4 in the vertical direction it is possible to suppress the decrease in the number of turns and the decrease in the attraction force (reactance torque).
  • the yoke when the thickness of the yoke is large, the yoke can not be manufactured by inexpensive press processing, and cutting parts are used, which is expensive. On the other hand, since it is not necessary to enlarge thickness if it is yoke part 6 of this embodiment, cheap press processing can be used.
  • the damper 9 will be described in detail later.
  • FIG. 5 is a perspective view of the coil fixing structure 151 according to the present embodiment.
  • the coil fixing structure 151 has the FPC 3 and the coil 4 and is disposed on the base plate 1.
  • the base plate 1 has a first base portion 11, a second base portion 12, and a connection base portion 13.
  • the connection base portion 13 radially connects the first base portion 11 and the second base portion 12.
  • the FPC 3 includes a first substrate unit 31, a second substrate unit 32, and a connection substrate unit 33.
  • the connection substrate portion 33 has a band shape extending in the radial direction, and connects the first substrate portion 31 and the second substrate portion 32 in the radial direction.
  • the coil 4 is fixed on the first substrate unit 31.
  • the FPC 3 has a base film portion 3A, a conductor portion 3B, and an insulating portion 3C as a layered structure stacked in the vertical direction.
  • the base film portion 3A is made of, for example, polyimide, and has insulation and flexibility.
  • the conductor portion 3B is made of, for example, a copper foil, and is disposed on the base film portion 3A.
  • the conductor portion 3B has a first wiring portion 3B1 and a second wiring portion 3B2.
  • the first wiring portion 3B1 and the second wiring portion 3B2 are insulated.
  • the first wiring portion 3B1 has a first land portion L1, a first terminal portion T1, and a first connection wiring portion CN1.
  • the second wiring portion 3B2 has a second land portion L2, a second terminal portion T2, and a second connection wiring portion CN2.
  • the insulating portion 3C is a resist layer disposed on the conductor portion 3B and made of, for example, polyimide.
  • the first land portion L1 and the second land portion L2 are included in the first substrate portion 31. Since the insulating portion 3C is not disposed above the first land portion L1 and the second land portion L2, the first land portion L1 and the second land portion L2 are exposed upward to enable electrical connection with the outside. .
  • the insulating portion 3C is not disposed above the first terminal portion T1 and the second terminal portion T2, the first terminal portion T1 and the second terminal portion T2 are exposed upward, allowing electrical connection with the outside Do.
  • the first terminal portion T1 is connected to the first land portion L1 by the first connection wiring portion CN1.
  • the second terminal portion T2 is connected to the second land portion L2 by the second connection wiring portion CN2.
  • the insulating portion 3C is disposed above the first connection wiring portion CN1 and the second connection wiring portion CN2.
  • the end of the first conducting wire 41 derived from the coil 4 is electrically connected to the first land portion L1.
  • the end of the second conducting wire 42 derived from the coil 4 is electrically connected to the second land portion L2.
  • the second conducting wire 42 is a winding start wire of the coil 4
  • the first conducting wire 41 is a winding finish wire of the coil 4. Electrical connection to the lands of the first conducting wire 41 and the second conducting wire 42 is made by soldering or resistance welding.
  • the damper 9 is an annular sheet in top view as shown in a plan view in top view in FIG. 6A.
  • the damper 9 is made of, for example, foamed polyurethane or silicon.
  • the damper 9 is fixed to the lower surface of the weight 72.
  • the damper 9 is fixed to the weight 72 by, for example, an adhesive sheet.
  • the outer edge of the damper 9 coincides with the outer edge of the weight 72 in top view.
  • the damper 9 vertically opposes the second ring portion 82 of the elastic member 8. At the time of the normal operation in which the vibrating body 7 vibrates, the damper 9 does not contact the elastic member 8 and does not disturb the normal operation.
  • the vibration body 7 moves largely downward.
  • the first conductive wire 41 and the second conductive wire 42 drawn from the coil 4 are covered with the elastic member 8 at the upper side, and the first ring portion 81 of the elastic member 8 is located at the upper side. Therefore, when the vibrating body 7 moves largely, the first ring portion 81 may move downward and come in contact with the first conducting wire 41 and the second conducting wire 42.
  • the damper 9 moves downward and contacts the second ring portion 82 to absorb the impact, the first ring portion 81 contacts the first conductive wire 41 and the second conductive wire 42. Also, disconnection of the first conductive wire 41 and the second conductive wire 42 can be suppressed.
  • the damper 9 is in the form of a sheet, the normal operation of the vibrating body 7 is not impeded, and dimensional control in the height direction is facilitated. Further, since the damper 9 is annular, it contacts the second ring portion 82 over the entire circumference at the time of a drop impact. Thus, the support of the damper 9 suppresses the tilting of the vibrating body 7.
  • the damper 9 vertically opposes the second ring portion 82 positioned on the outermost peripheral side and the lowermost position in the elastic member 8, the damper 9 contacts the elastic member 8 at the time of normal operation and the normal operation is interrupted. Can be suppressed.
  • FIG. 6B is a top view in the top view which shows the modification of a structure of a damper.
  • the dampers 9A to 9C shown in FIG. 6B are separate members independent of each other, and are arc-shaped sheets. It is arranged at equal intervals in the circumferential direction.
  • the dampers 9A to 9C are fixed to the lower surface of the weight 72, and the outer peripheral side edge of each of the dampers 9A to 9C coincides with the outer edge of the weight 72 in top view.
  • the dampers 9A to 9C are in contact with the second ring portion 82 when the vibration motor 15 is dropped and the vibrator 7 is supported by the dampers 9A to 9C. Is suppressed.
  • the embodiment in which a plurality of dampers are arranged at equal intervals is not limited to FIG. 6B, and the arrangement form of the dampers changes depending on the number of dampers. Further, the damper 9 described above is more advantageous than the dampers 9A to 9C in the ease of fixing to the weight 72.
  • FIG. 7 is a cross-sectional view showing the configuration of the vibration motor 15 when a damper 90 according to another modification is used, and corresponds to FIG.
  • the damper 90 is an annular sheet, but has a configuration in which the thickness increases from the inner circumferential side to the outer circumferential side as a point different from the damper 9 described above.
  • the elastic member 8 approaches the damper 90 because it is positioned upward as it goes to the inner peripheral side, but the thickness of the damper 90 becomes thinner as it goes to the inner peripheral side, so the vertical direction between the damper 90 and the elastic member 8 It is possible to suppress the narrowing of the Therefore, the damper 90 is prevented from contacting the elastic member 8 during the normal operation, and the normal operation is not impeded.
  • the outer peripheral side of the thick damper 90 comes first in contact with the second ring portion 82 that has little influence on the disconnection of the first conducting wire 41 and the second conducting wire 42, so that disconnection can be suppressed. Further, in the case of the damper 90, it is possible to reduce the amount of used members rather than making the thickness constant in the radial direction.
  • the vibration motor 15 includes the stationary portion 10 having the housing C1 and the coil 4 and the magnet 71, and the vibration is supported so as to be vertically vibrated with respect to the stationary portion.
  • a body 7 and an elastic member 8 disposed between the housing and the lower surface of the vibrator.
  • the conducting wires 41 and 42 derived from the coil are covered with the elastic member from above, and the damper 9 and the like are disposed on the lower surface of the vibrating body.
  • the shock is absorbed by the damper when the vibrator moves downward at the time of a drop impact, so that even if the elastic member comes in contact with the lead of the coil, the breakage of the lead can be suppressed.
  • the damper 9 and the like are in the form of a sheet. Thereby, the normal operation of the vibrator is not disturbed while suppressing the disconnection of the lead wire. Also, dimensional control in the height direction is facilitated.
  • the said damper 9 grade
  • the plurality of dampers 9A to 9C are arranged at equal intervals in the circumferential direction. This suppresses the tilting of the vibrating body due to the support by the damper at the time of a drop impact.
  • the elastic member 8 is disposed at a first connection portion 81 connected to the lower surface of the vibrating body 7, a lower side than the first connection portion, and an outer peripheral side than the first connection portion.
  • a second connection portion 82 connected to the body C1, and the dampers 9, 90 and the like face the second connection portion in the vertical direction.
  • the damper does not interfere with the normal operation of the vibrator.
  • the thickness of the damper 90 increases as it goes from the inner circumferential side to the outer circumferential side.
  • the damper does not interfere with the normal operation of the vibrator.
  • the amount of member used of the damper can be reduced.
  • the damper is not limited to vertically opposed to the second connection portion of the elastic member, and vertically opposed to the first base portion of the base plate, and the second connection portion is radially inner than the opposed position. It may be located at In this case, at the time of a drop impact, the damper contacts the first base portion to absorb the impact, and the wire breakage can be suppressed.
  • Embodiment 2 a vibration motor of Embodiment 2 according to an embodiment of the present invention will be described.
  • the description of the present embodiment since there are parts common to the configuration of the first embodiment and the like, the description of these common parts is omitted, and parts different from the first embodiment will be mainly described.
  • the configuration of the tamper is different from that of the first embodiment.
  • FIG. 8 is a cross-sectional perspective view cut along line AA in FIG.
  • FIG. 9 is a cross-sectional view taken along the line AA in FIG.
  • a partial cross-sectional perspective view of the vibration motor 15 cut downward is the same as FIG. 4 of the first embodiment.
  • the present embodiment is different in that the damper 9 in the first embodiment is replaced by a damper 91 as shown in FIGS. 8 and 9. Moreover, in FIG. 8, since the 1st land part L1 is located under the damper 91 mentioned later, it is not illustrated. Since FIG. 8 and FIG. 9 of this embodiment are the same as FIG. 2 and FIG. 3 of Embodiment 1 except these points, the duplicate description is omitted.
  • FIG. 10 is a perspective view of the coil fixing structure 151 according to the present embodiment. 10 is different from the coil fixing structure shown in FIG. 5 of the first embodiment in that connecting portions 411 and 421 are shown, and the other points are common.
  • connection portion 411 in which the first conductive wire 41 is electrically connected to the first land portion L1 and a connection portion 421 in which the second conductive wire 42 is electrically connected to the second land portion L2 are formed.
  • FIG. 11 is a perspective view showing a state in which the damper 91 is disposed in the coil fixing structure 151. As shown in FIG. As shown in FIG. 11, the damper 91 is disposed on the first substrate portion 31 of the FPC 3.
  • FIG. 12A is a plan view of the damper 91 and the coil 4 in top view.
  • the damper 91 is a sheet that is annular in a top view, and is disposed at a position surrounding the coil 4.
  • the inner edge of the damper 91 has a gap with the outer edge of the coil 4.
  • the damper 91 is fixed on the first substrate portion 31 so as to cover the first land portion L1 and the second land portion L2 from above.
  • the damper 91 is fixed, for example, by an adhesive tape. In the state where the damper 91 is fixed on the first substrate portion 31, the damper 91 covers the connection portions 411 and 421 from above.
  • the vibrator 7 When the vibration motor 15 is dropped by mistake, the vibrator 7 largely moves downward.
  • the first ring portion 81 of the elastic member 8 covers the first conducting wire 41 and the second conducting wire 42 from above, the elastic member 8 approaches the first conducting wire 41 and the second conducting wire 42.
  • the damper 91 can protect the connection parts 411 and 421. Thereby, the conduction defect of a soldering part etc. can be suppressed.
  • the damper 91 is in the form of a sheet, dimensional control in the height direction is facilitated, and the elastic member 8 can be prevented from contacting the damper 91 during normal operation in which the vibrating body 7 vibrates. That is, the damper 91 does not disturb the normal operation.
  • the damper 91 has an annular shape, when the elastic member 8 contacts the damper 91 at the time of a drop impact, the elastic member 8 is supported by the damper 91 over the entire circumference, so that the vibrator 7 is prevented from tilting.
  • FIG. 12B is a plan view of the dampers 91A to 91C and the coil 4 according to the first modification viewed from above.
  • the dampers 91A to 91C are independent and separate sheet-like members, and are arranged at equal intervals in the circumferential direction so as to surround the periphery of the coil 4.
  • the damper 91 described above is more advantageous than the dampers 91A to 91C with regard to the ease of fixing to the first substrate portion 31.
  • positions several dampers at equal intervals is not limited to what is shown to FIG. 12B, An arrangement form changes with the number of objects of a damper.
  • FIG. 13 is a perspective view showing a configuration in which the damper 92 according to the second modification is disposed in the coil fixing structure 151. As shown in FIG. 13
  • the damper 92 is formed of an adhesive applied on the first substrate portion 31 so as to cover the connection portions 411 and 421 from above. That is, the damper 92 is composed only of the cured adhesive.
  • the adhesive has insulating properties.
  • the first ring portion 81 of the elastic member 8 contacts the damper 92 to absorb the impact, and the disconnection of the first conductive wire 41 and the second conductive wire 42 is suppressed.
  • the damper 92 can be configured by applying the adhesive, so that wire breakage can be suppressed in a simple manner and at low cost.
  • FIG. 14 is a perspective view showing a configuration in which the damper 93 according to the third modification is disposed in the coil fixing structure 151. As shown in FIG. 14
  • the damper 93 is composed of an adhesive 931 and a washer 932.
  • an adhesive 931 is applied onto the first substrate portion 31 so as to cover the connection portions 411 and 421 from above. Then, before the adhesive 931 is cured, the adhesive 931 is pressed from above by the washer 932.
  • the washer 932 is an annular thin plate member, and is disposed to surround the coil 4. The inner edge of the washer 932 has a gap with the outer edge of the coil 4.
  • the washer 932 is fixed to the first substrate portion 31, and the damper 93 is formed.
  • the first ring portion 81 of the elastic member 8 comes into contact with the washer 932 to absorb the impact, and the disconnection of the first conductive wire 41 and the second conductive wire 42 is suppressed.
  • the variation in the dimension in the height direction of the applied adhesive 931 can be absorbed by the pressing by the washer 932, management of the dimension in the height direction becomes easy. That is, the accuracy of the application process of the adhesive may be lower than that of the second modification described above.
  • the washer 932 is made of an insulating material, a short circuit between the first conducting wire 41 and the second conducting wire 42 can be suppressed.
  • the vibration motor 15 includes the stationary portion 10 having the housing C1, the coil 4, and the substrate 3, and the magnet 71, and can vibrate in the vertical direction with respect to the stationary portion.
  • a vibrator 7 to be supported and an elastic member 8 are provided.
  • the coil, the substrate, the vibrator, and the elastic member are accommodated in the housing.
  • the elastic member is disposed between the housing and the lower surface of the vibrator.
  • Conductors 41 and 42 derived from the coil are electrically connected to the substrate and covered with the elastic member from above.
  • a damper 91 or the like that covers the connection portions 411 and 421 of the conducting wire to the substrate from above is disposed.
  • the damper can protect the connecting portion of the conducting wire.
  • the damper 91 and the like are in the form of a sheet. This facilitates dimensional control in the height direction of the wire protection portion and does not disturb the normal operation of the vibrator.
  • the damper 92 is made of only an adhesive. Thereby, since a damper can be comprised by application of an adhesive agent, the disconnection of conducting wire can be suppressed simply and at low cost.
  • the damper 93 has an adhesive 931 covering the connection portion, and a washer 932 disposed on the upper side of the adhesive.
  • a damper is comprised by pressing down an adhesive agent by a washer. Therefore, the variation in the dimension in the height direction of the applied adhesive can be absorbed by the washer, and the dimension control in the height direction of the wire protection portion becomes easy. That is, the accuracy of the adhesive application process may be low.
  • the washer 932 is an insulating material. Thereby, the short circuit of the conducting wire can be suppressed.
  • the damper 91 and the like are annular. As a result, since the elastic member is supported by the damper over the entire circumference at the time of drop impact, tilting of the vibrating body is suppressed. In addition, when the damper is in the form of a sheet or the like, the damper can be easily fixed to the substrate.
  • the plurality of dampers 91A to 91C are arranged at equal intervals in the circumferential direction.
  • the elastic member is supported by the damper at the time of a drop impact, and tilting of the vibrating body is suppressed.
  • the inner diameter of the damper 91 or the washer 932 may be matched with the outer diameter of the coil 4. In this case, positioning at the time of assembly of the damper 91 or the washer 932 is facilitated.
  • the present invention can be used, for example, for a vibration motor provided in a smartphone, wearable device or the like.

Abstract

This oscillating motor comprises: a static portion having a housing and a coil; an oscillating element which includes a magnet and which is supported so as to be able to oscillate with respect to the stating portion in the vertical direction; and an elastic member positioned between the housing and the lower surface of the oscillating element. Wires led out from the coil are covered from above by the elastic member, and a damper is provided to the lower surface of the oscillating element.

Description

振動モータVibration motor
　本発明は、振動モータに関する。 The present invention relates to a vibration motor.
　従来、スマートフォン等の各種機器には、振動モータが備えられる。振動モータには、横方向に振動を行うタイプと、縦方向に振動を行うタイプが存在する。ユーザである人間は、横方向の振動よりも縦方向の振動を感じやすい。従来の縦方向振動型のリニア振動モータの一例は、特許文献１に開示される。 Conventionally, various devices such as smartphones are equipped with a vibration motor. There are two types of vibration motors: one that vibrates in the lateral direction and the other that vibrates in the vertical direction. A human being who is a user is more likely to feel vertical vibration than horizontal vibration. An example of a conventional longitudinal vibration type linear vibration motor is disclosed in Patent Document 1.
　特許文献１の振動モータは、固定部と、磁界部と、基板と、振動部と、弾性部材と、を備える。固定部は、下部が開放されたケースと、ケースの内部空間を密閉するブラケットと、を有する。磁界部は、ブラケット上に固定されるマグネットと、マグネット上に固定されるヨークプレートと、を有する。振動部は、コイルと、質量体と、を有する。基板は、コイルの下面に固定される。弾性部材は、ケースと振動部との間に配置される。コイルは、対向するマグネットの外径よりも大きい内径を有し、マグネットの一部はコイルによって形成される空間内に挿入可能である。 The vibration motor of Patent Document 1 includes a fixing portion, a magnetic field portion, a substrate, a vibrating portion, and an elastic member. The fixing portion has a case whose lower portion is opened and a bracket which seals the internal space of the case. The magnetic field part has a magnet fixed on the bracket and a yoke plate fixed on the magnet. The vibrating portion has a coil and a mass body. The substrate is fixed to the lower surface of the coil. The elastic member is disposed between the case and the vibrator. The coil has an inner diameter greater than the outer diameter of the opposing magnet, and a portion of the magnet is insertable into the space formed by the coil.
　基板を介してコイルに通電が行われると、コイルに発生する磁界と、マグネットにより形成される磁界の相互作用により、振動部は縦方向に振動を行う。 When the coil is energized through the substrate, the vibrating portion vibrates in the vertical direction by the interaction of the magnetic field generated in the coil and the magnetic field formed by the magnet.
特開２０１３－８５４３８号公報JP, 2013-85438, A
　上記特許文献１では、コイルから導出される導線は基板に接続されるが、基板と弾性部材とは質量体を縦方向に挟んだ位置に配置されるので、振動モータを誤って落下させたときの落下衝撃時に質量体が大きく移動した場合でも、導線と弾性部材とが接触して導線が断線する虞はほぼない。 In the above-mentioned patent document 1, although the lead wire derived from the coil is connected to the substrate, the substrate and the elastic member are disposed at the position sandwiching the mass in the longitudinal direction, so when the vibration motor is dropped accidentally Even when the mass body is moved significantly at the time of the drop impact, there is almost no risk that the lead wire contacts the elastic member and the lead wire is broken.
　しかしながら、縦方向リニア振動型モータの設計によっては、落下衝撃時に導線が弾性部材と接触して導線が断線する可能性もある。 However, depending on the design of the longitudinal linear vibration motor, the lead wire may come into contact with the elastic member at the time of a drop impact and the lead wire may be broken.
　上記状況に鑑み、本発明は、落下衝撃時にコイルから導出される導線が断線することを抑制できる振動モータを提供することを目的とする。 In view of the above situation, the present invention has an object to provide a vibration motor that can suppress breakage of a lead wire drawn from a coil at the time of drop impact.
　本発明の例示的な振動モータは、筐体と、コイルと、を有する静止部と、
　磁石を含み、前記静止部に対して上下方向に振動可能に支持される振動体と、
　前記筐体と前記振動体の下面との間に配置される弾性部材と、
　を備え、
　前記コイルから導出された導線は、上方から前記弾性部材に覆われ、
　前記振動体の下面にダンパーが配置される構成としている。 An exemplary vibration motor of the present invention comprises a stationary part having a housing and a coil;
A vibrator including a magnet and vertically and vibratably supported with respect to the stationary portion;
An elastic member disposed between the housing and the lower surface of the vibrator;
Equipped with
The lead wire derived from the coil is covered by the elastic member from above,
A damper is disposed on the lower surface of the vibrator.
　本発明の他の例示的な振動モータは、筐体と、コイルと、基板と、を有する静止部と、
　磁石を含み、前記静止部に対して上下方向に振動可能に支持される振動体と、
　弾性部材と、
　を備え、
　前記コイル、前記基板、前記振動体、および前記弾性部材は、前記筐体の内部に収容され、
　前記弾性部材は、前記筐体と前記振動体の下面との間に配置され、
　前記コイルから導出された導線は、前記基板に電気的接続され、上方から前記弾性部材に覆われ、
　前記基板上には、前記導線の前記基板への接続部分を上方から覆うダンパーが配置される構成としている。 Another exemplary vibration motor of the present invention comprises a stationary part having a housing, a coil and a substrate;
A vibrator including a magnet and vertically and vibratably supported with respect to the stationary portion;
An elastic member,
Equipped with
The coil, the substrate, the vibrator, and the elastic member are accommodated in the housing.
The elastic member is disposed between the housing and the lower surface of the vibrator.
The lead wire derived from the coil is electrically connected to the substrate and covered with the elastic member from above,
A damper is disposed on the substrate to cover the connecting portion of the conducting wire to the substrate from above.
　例示的な本発明の振動モータによれば、落下衝撃時にコイルから導出される導線が断線することを抑制できる。 According to the vibration motor of the present invention, it is possible to suppress the disconnection of the lead wire derived from the coil at the time of drop impact.
図１は、本発明の一実施形態に係る振動モータの外観を示す斜視図である。FIG. 1 is a perspective view showing the appearance of a vibration motor according to an embodiment of the present invention. 図２は、実施形態１において、図１のＡ－Ａ線で切断した断面斜視図である。2 is a cross-sectional perspective view cut along the line AA of FIG. 1 in the first embodiment. 図３は、実施形態１において、図１のＡ－Ａ線で切断した断面図である。FIG. 3 is a cross-sectional view taken along a line AA of FIG. 1 in the first embodiment. 図４は、振動モータを下方で切断した一部断面斜視図である。FIG. 4 is a partial cross-sectional perspective view of the vibration motor cut downward. 図５は、実施形態１のコイル固定構造の斜視図である。FIG. 5 is a perspective view of the coil fixing structure of the first embodiment. 図６Ａは、実施形態１のダンパーの一構成例を示す平面図である。FIG. 6A is a plan view showing one configuration example of the damper of the first embodiment. 図６Ｂは、実施形態１のダンパーの変形例を示す平面図である。FIG. 6B is a plan view showing a modification of the damper of the first embodiment. 図７は、実施形態１の変形例に係るダンパーを用いた振動モータの断面図である。FIG. 7 is a cross-sectional view of a vibration motor using a damper according to a modification of the first embodiment. 図８は、実施形態２において、図１のＡ－Ａ線で切断した断面斜視図である。8 is a cross-sectional perspective view cut along the line AA of FIG. 1 in the second embodiment. 図９は、実施形態２において、図１のＡ－Ａ線で切断した断面図である。FIG. 9 is a cross-sectional view taken along the line AA of FIG. 1 in the second embodiment. 図１０は、実施形態２のコイル固定構造の斜視図である。FIG. 10 is a perspective view of the coil fixing structure of the second embodiment. 図１１は、実施形態２のコイル固定構造にダンパーを配置した構成を示す斜視図である。FIG. 11 is a perspective view showing a configuration in which a damper is disposed in the coil fixing structure of the second embodiment. 図１２Ａは、実施形態２のダンパーの一構成例を示す平面図である。FIG. 12A is a plan view showing one configuration example of the damper of the second embodiment. 図１２Ｂは、実施形態２のダンパーの第１変形例を示す平面図である。FIG. 12B is a plan view showing a first modified example of the damper of the second embodiment. 図１３は、実施形態２のコイル固定構造に第２変形例に係るダンパーを配置した構成を示す斜視図である。FIG. 13 is a perspective view showing a configuration in which a damper according to a second modification is arranged in the coil fixing structure of the second embodiment. 図１４は、実施形態２のコイル固定構造に第３変形例に係るダンパーを配置した構成を示す斜視図である。FIG. 14 is a perspective view showing a configuration in which a damper according to a third modification is arranged in the coil fixing structure of the second embodiment.
　以下に本発明の例示的な実施形態について図面を参照して説明する。なお、振動モータの中心軸Ｊの延びる方向を「上下方向」とし、例えば図２の紙面上側が上下方向における上側となる。また、中心軸Ｊを中心とする径方向を単に「径方向」と呼び、中心軸Ｊを中心とする周方向を単に「周方向」と呼ぶ。なお、上記の「上下方向」は、実際の機器に組み込まれたときの位置関係や方向を示すものではない。 Exemplary embodiments of the present invention will be described below with reference to the drawings. The direction in which the central axis J of the vibration motor extends is referred to as "vertical direction". For example, the upper side in the drawing of FIG. 2 is the upper side in the vertical direction. Further, a radial direction centered on the central axis J is simply referred to as “radial direction”, and a circumferential direction centered on the central axis J is simply referred to as “circumferential direction”. The “vertical direction” described above does not indicate the positional relationship or direction when it is incorporated into an actual device.
＜１．実施形態１＞
　まず、本発明の一実施形態に係る、実施形態１の振動モータについて説明する。 <1. Embodiment 1>
First, a vibration motor according to a first embodiment of the present invention will be described.
＜１－１．実施形態１の振動モータの全体構成＞
　図１は、本実施形態の振動モータ１５の外観を示す斜視図である。図２は、図１においてＡ－Ａ線で切断した断面斜視図である。図３は、図１においてＡ－Ａ線で切断した断面図である。 <1-1. Overall Configuration of Vibration Motor of Embodiment 1>
FIG. 1 is a perspective view showing the appearance of a vibration motor 15 according to the present embodiment. FIG. 2 is a cross-sectional perspective view taken along line AA in FIG. FIG. 3 is a cross-sectional view taken along the line AA in FIG.
　振動モータ１５は、大きく分けて、静止部１０と、振動体７と、弾性部材８と、ダンパー９と、を備える。静止部１０は、筐体Ｃ１と、ＦＰＣ（フレキシブルプリント基板）３と、コイル４と、シャフト５と、ヨーク部６を有する。 The vibration motor 15 roughly includes a stationary unit 10, a vibrating body 7, an elastic member 8, and a damper 9. The stationary unit 10 includes a housing C <b> 1, an FPC (flexible printed circuit board) 3, a coil 4, a shaft 5, and a yoke portion 6.
　筐体Ｃ１は、ベースプレート１と、ケース２を有する。ベースプレート１は、例えば冷延鋼板で構成される板状部材である。ベースプレート１は、中心軸Ｊに対して垂直方向に拡がる。 The case C1 has a base plate 1 and a case 2. The base plate 1 is a plate-like member made of, for example, a cold-rolled steel plate. The base plate 1 spreads in a direction perpendicular to the central axis J.
　ケース２は、上端に蓋部２１を有する円筒形状のカバー部材である。すなわち、ケース２は、下端に開口部２２を有する。ケース２は、例えばＳＵＳ材により構成される。ベースプレート１は、略円板状の第１基台部１１と、略矩形板状の第２基台部１２を有し、第１基台部１１と第２基台部１２とが接続された構成を有する。第１基台部１１に開口部２２を嵌め込むことにより、ケース２は上方からベースプレート１に対して取り付けられ、ケース２はベースプレート１に対して溶接または融着、カシメ等により固定される。第２基台部１２は、ケース２の外部に配置される。筐体Ｃ１内部に、ＦＰＣ３、コイル４、シャフト５、ヨーク部６、振動体７、弾性部材８、およびダンパー９が収容される。 The case 2 is a cylindrical cover member having a lid 21 at its upper end. That is, the case 2 has an opening 22 at the lower end. Case 2 is made of, for example, a SUS material. The base plate 1 has a substantially disk-shaped first base portion 11 and a substantially rectangular plate-shaped second base portion 12, and the first base portion 11 and the second base portion 12 are connected. It has composition. By fitting the opening 22 into the first base 11, the case 2 is attached to the base plate 1 from above, and the case 2 is fixed to the base plate 1 by welding, fusion, caulking, or the like. The second base 12 is disposed outside the case 2. The FPC 3, the coil 4, the shaft 5, the yoke portion 6, the vibrating body 7, the elastic member 8, and the damper 9 are accommodated in the housing C <b> 1.
　ＦＰＣ３は、コイル４に電流を供給するための配線を有する基板であり、上下方向に厚みを有する。ＦＰＣ３は、柔軟性を有し、ベースプレート１上に接着または粘着シートにより固定される。ＦＰＣ３は、略円板状の第１基板部３１と、略矩形板状の第２基板部３２を有し、第１基板部３１と第２基板部３２とが接続される構成を有する。第１基板部３１は、第１基台部１１上に配置される。第１基板部３１は、第１ランド部Ｌ１および第２ランド部Ｌ２（図２では不図示）を有する。第１ランド部Ｌ１および第２ランド部Ｌ２はそれぞれ、コイル４の径方向外側において周方向に円弧状に延びて構成され、上方に露出する。第１ランド部Ｌ１および第２ランド部Ｌ２のそれぞれには、コイル４から導出される第１導線４１および第２導線４２（図２では不図示）が半田付け等により電気的に接続される。 The FPC 3 is a substrate having a wiring for supplying a current to the coil 4 and has a thickness in the vertical direction. The FPC 3 has flexibility and is fixed on the base plate 1 by an adhesive or an adhesive sheet. The FPC 3 has a substantially disk-shaped first substrate portion 31 and a substantially rectangular plate-shaped second substrate portion 32, and has a configuration in which the first substrate portion 31 and the second substrate portion 32 are connected. The first substrate unit 31 is disposed on the first base unit 11. The first substrate portion 31 has a first land portion L1 and a second land portion L2 (not shown in FIG. 2). Each of the first land portion L1 and the second land portion L2 extends in a circular arc in the circumferential direction on the radially outer side of the coil 4, and is exposed upward. A first conductive wire 41 and a second conductive wire 42 (not shown in FIG. 2) derived from the coil 4 are electrically connected to each of the first land portion L1 and the second land portion L2 by soldering or the like.
　第２基板部３２は、第２基台部１２上に配置される。第２基板部３２は、上方に露出する第１端子部Ｔ１および第２端子部Ｔ２を有する。第１端子部Ｔ１は第１ランド部Ｌ１に、第２端子部Ｔ２は第２ランド部Ｌ２にそれぞれ配線によって接続される。これにより、第１端子部Ｔ１および第２端子部Ｔ２に外部より電圧を印加することで、コイル４に電流を供給することができる。 The second substrate unit 32 is disposed on the second base unit 12. The second substrate portion 32 has a first terminal portion T1 and a second terminal portion T2 exposed upward. The first terminal portion T1 is connected to the first land portion L1, and the second terminal portion T2 is connected to the second land portion L2 by wiring. Thus, current can be supplied to the coil 4 by externally applying a voltage to the first terminal portion T1 and the second terminal portion T2.
　なお、ＦＰＣ３についてのより詳細な構成については、後述する。また、ＦＰＣ３の代わりに、柔軟性を有しないリジッド基板を用いることも可能である。 A more detailed configuration of the FPC 3 will be described later. Also, instead of the FPC 3, it is possible to use a rigid substrate having no flexibility.
　シャフト５は、全体として上下方向に延びる柱状を有し、基部５１と突出部５２を有する。シャフト５は、例えば切削鋼により構成され、磁性を有する。基部５１は、上下方向に延びる円柱状である。突出部５２は、基部５１より下方に突出する円柱状である。突出部５２の径は、基部５１の径よりも小さい。 The shaft 5 has a column extending in the vertical direction as a whole, and has a base 51 and a protrusion 52. The shaft 5 is made of, for example, cutting steel and has magnetism. The base 51 has a cylindrical shape extending in the vertical direction. The protrusion 52 has a cylindrical shape that protrudes downward from the base 51. The diameter of the protrusion 52 is smaller than the diameter of the base 51.
　第１基台部１１は、中心軸Ｊを中心として上方に突出する固定部１１１を有する。固定部１１１は、ＦＰＣ３の第１基板部３１を上下方向に貫通する。固定部１１１は、上下方向に貫通する貫通孔１１１Ａを有する。突出部５２を貫通孔１１１Ａに嵌め込んで基部５１を固定部１１１上に載置することで、シャフト５は固定部１１１に固定される。シャフト５の固定は、突出部５２を嵌め込む箇所における圧入またはカシメにより行われる。 The first base portion 11 has a fixing portion 111 which protrudes upward around the central axis J. The fixing portion 111 penetrates the first substrate portion 31 of the FPC 3 in the vertical direction. The fixing portion 111 has a through hole 111A penetrating in the vertical direction. The shaft 5 is fixed to the fixing portion 111 by fitting the protrusion 52 into the through hole 111 </ b> A and placing the base portion 51 on the fixing portion 111. Fixing of the shaft 5 is performed by press-fitting or caulking at the place where the protrusion 52 is fitted.
　コイル４は、例えば融着ポリウレタン銅線で構成されるコイル線を中心軸Ｊ周りに上下方向に沿って巻回すことで構成される。コイル４の下部は、固定部１１１の径方向外側に嵌め込まれる。コイル４の下端面は、第１基板部３１と接着または粘着シートにより固定される。コイル４は、シャフト５の径方向外側に配置される。 The coil 4 is configured by winding a coil wire made of, for example, a fusion polyurethane copper wire along the up and down direction around the central axis J. The lower portion of the coil 4 is fitted on the radially outer side of the fixing portion 111. The lower end surface of the coil 4 is fixed to the first substrate portion 31 by an adhesive or an adhesive sheet. The coil 4 is disposed radially outward of the shaft 5.
　ヨーク部（バックヨーク）６は、例えば冷延鋼板により構成され、磁性を有する。ヨーク部６は、底部６１と、壁部６２を有する。底部６１は、上下方向に厚みを有する略円板状である。 The yoke portion (back yoke) 6 is made of, for example, a cold-rolled steel plate and has magnetism. The yoke portion 6 has a bottom portion 61 and a wall portion 62. The bottom portion 61 has a substantially disc shape having a thickness in the vertical direction.
　壁部６２は、底部６１の外縁から下方へ突出する円筒状である。すなわち、壁部６２の内周面は、コイル４の外周面の径方向外側に位置し、当該外周面と径方向に対向する。底部６１の下面が基部５１の上端面に接着または粘着シートにより固定されることで、ヨーク部６はシャフト５に固定される。 The wall 62 has a cylindrical shape projecting downward from the outer edge of the bottom 61. That is, the inner peripheral surface of the wall portion 62 is located radially outward of the outer peripheral surface of the coil 4 and radially opposed to the outer peripheral surface. The lower surface of the bottom portion 61 is fixed to the upper end surface of the base portion 51 by adhesion or an adhesive sheet, whereby the yoke portion 6 is fixed to the shaft 5.
　振動体７は、磁石７１と、おもり７２と、ポールピース７３と、を有する。磁石７１は、例えば焼結ネオジム磁石から構成され、上面視で円環状を有する円筒形状である。おもり７２は、例えばタングステン合金により構成され、上面視で円環状を有する略円筒形状である。磁石７１は、おもり７２の径方向内側に配置される。磁石７１の外周面とおもり７２の内周面とは、接着または粘着シートにより固定される。ポールピース７３は、例えばＳＵＳ材により構成され、磁性を有する円環板状部材である。ポールピース７３は、磁石７１の下側に配置され、磁石７１の下面と接着または粘着シートにより固定される。 The vibrating body 7 has a magnet 71, a weight 72, and a pole piece 73. The magnet 71 is made of, for example, a sintered neodymium magnet, and has a cylindrical shape having an annular shape in top view. The weight 72 is made of, for example, a tungsten alloy, and has a substantially cylindrical shape having an annular shape in top view. The magnet 71 is disposed radially inward of the weight 72. The outer peripheral surface of the magnet 71 and the inner peripheral surface of the weight 72 are fixed by an adhesive or an adhesive sheet. The pole piece 73 is made of, for example, a SUS material, and is an annular plate member having magnetism. The pole piece 73 is disposed below the magnet 71 and fixed to the lower surface of the magnet 71 by an adhesive or adhesive sheet.
　弾性部材８は、例えばＳＵＳ材により構成される板バネ部材である。ここで、弾性部材８の構成を示すために、振動モータ１５を下方で切断した一部断面斜視図を図４に示す。弾性部材８は、第１リング部（第１接続部）８１と、第１リング部８１よりも下方に位置する第２リング部（第２接続部）８２と、第１リング部８１および第２リング部８２を接続する３つの接続部８３と、を有する。円環状の第１リング部８１の外縁において周方向に等間隔に３つ配置される箇所がそれぞれ、径方向外側に向かいつつ周方向に延びる接続部８３により第２リング部８２の内縁に接続される。このような構成により、弾性部材８は、上下方向に伸縮可能である。 The elastic member 8 is a leaf spring member made of, for example, a SUS material. Here, in order to show the structure of the elastic member 8, a partially sectioned perspective view in which the vibration motor 15 is cut below is shown in FIG. The elastic member 8 includes a first ring portion (first connection portion) 81, a second ring portion (second connection portion) 82 located below the first ring portion 81, a first ring portion 81, and a second ring portion 81. And three connection parts 83 for connecting the ring part 82. Three locations equally spaced in the circumferential direction at the outer edge of the annular first ring portion 81 are respectively connected to the inner edge of the second ring portion 82 by connection portions 83 extending in the circumferential direction while facing radially outward Ru. With such a configuration, the elastic member 8 can expand and contract in the vertical direction.
　弾性部材８は、振動体７と第１基台部１１との間に配置される。第１リング部８１の径方向内側にコイル４が配置される。第２リング部８２の下面が第１基台部１１の上面に溶接または融着により固定されることで、弾性部材８はベースプレート１に固定される。第１リング部８１の上面がポールピース７３の下面に溶接または融着により固定されることで、弾性部材８は振動体７に固定される。 The elastic member 8 is disposed between the vibrating body 7 and the first base portion 11. The coil 4 is disposed radially inward of the first ring portion 81. The elastic member 8 is fixed to the base plate 1 by fixing the lower surface of the second ring portion 82 to the upper surface of the first base portion 11 by welding or fusion bonding. The elastic member 8 is fixed to the vibrating body 7 by fixing the upper surface of the first ring portion 81 to the lower surface of the pole piece 73 by welding or fusion bonding.
　これにより、振動体７は、上下方向に振動可能に弾性部材８により支持される。磁石７１の内周面は、ヨーク部６の外周面より径方向外側に位置し、当該外周面と径方向に対向する。 Thus, the vibrating body 7 is supported by the elastic member 8 so as to be capable of vibrating in the vertical direction. The inner circumferential surface of the magnet 71 is located radially outward of the outer circumferential surface of the yoke portion 6 and radially opposed to the outer circumferential surface.
　コイル４に電流を供給することで、コイル４、シャフト５、およびヨーク部６から構成される磁路を通る磁束が発生する。発生した磁束と、磁石７１およびポールピース７３を磁路とする磁束との相互作用によって、振動体７は上下方向に振動する。従って、振動モータ１５は、縦方向振動型のリニア振動モータとなる。 By supplying a current to the coil 4, a magnetic flux passing through a magnetic path formed of the coil 4, the shaft 5, and the yoke portion 6 is generated. The vibrating body 7 vibrates in the vertical direction by the interaction of the generated magnetic flux and the magnetic flux which uses the magnet 71 and the pole piece 73 as a magnetic path. Therefore, the vibration motor 15 is a longitudinal vibration linear vibration motor.
　特に、ヨーク部６を先述した底部６１と壁部６２から構成されるようにしたことで、ヨーク部６と磁石７１との径方向距離を短くし、且つ、その短い部分を上下方向に長くすることができるので、振動モータ１５のパワーを高めることができる。その際に、底部６１の厚みを大きくする必要がないので、振動モータ１５の上下方向のサイズが大きくなるのを抑制できる。また、コイル４の上下方向の長さを短くする必要もないので、巻き数が低下して吸引力（リアクタンストルク）が低下することを抑制できる。 In particular, by forming the yoke portion 6 from the bottom portion 61 and the wall portion 62 described above, the radial distance between the yoke portion 6 and the magnet 71 is shortened, and the short portion is elongated in the vertical direction. The power of the vibration motor 15 can be increased. At that time, since it is not necessary to increase the thickness of the bottom portion 61, it is possible to suppress an increase in the size of the vibration motor 15 in the vertical direction. Moreover, since it is not necessary to shorten the length of the coil 4 in the vertical direction, it is possible to suppress the decrease in the number of turns and the decrease in the attraction force (reactance torque).
　また、ヨークの厚みが厚い場合、安価なプレス加工によってヨークを製造することができず、切削部品を使用することになるので高価となる。これに対し、本実施形態のヨーク部６であれば、厚みを大きくする必要がないので、安価なプレス加工を用いることができる。 In addition, when the thickness of the yoke is large, the yoke can not be manufactured by inexpensive press processing, and cutting parts are used, which is expensive. On the other hand, since it is not necessary to enlarge thickness if it is yoke part 6 of this embodiment, cheap press processing can be used.
　なお、ダンパー９については、後に詳述する。 The damper 9 will be described in detail later.
＜１－２．コイル固定構造の構成＞
　次に、振動モータ１５に備えられるコイル固定構造について説明する。図５は、本実施形態に係るコイル固定構造１５１の斜視図である。 <1-2. Configuration of coil fixing structure>
Next, the coil fixing structure provided in the vibration motor 15 will be described. FIG. 5 is a perspective view of the coil fixing structure 151 according to the present embodiment.
　コイル固定構造１５１は、ＦＰＣ３とコイル４を有し、ベースプレート１上に配置される。ベースプレート１は、第１基台部１１と、第２基台部１２と、接続台部１３を有する。接続台部１３は、第１基台部１１と第２基台部１２を径方向に接続する。 The coil fixing structure 151 has the FPC 3 and the coil 4 and is disposed on the base plate 1. The base plate 1 has a first base portion 11, a second base portion 12, and a connection base portion 13. The connection base portion 13 radially connects the first base portion 11 and the second base portion 12.
　ＦＰＣ３は、第１基板部３１と、第２基板部３２と、接続基板部３３を有する。接続基板部３３は、径方向に延びる帯状を有し、第１基板部３１と第２基板部３２を径方向に接続する。コイル４は、第１基板部３１上に固定される。 The FPC 3 includes a first substrate unit 31, a second substrate unit 32, and a connection substrate unit 33. The connection substrate portion 33 has a band shape extending in the radial direction, and connects the first substrate portion 31 and the second substrate portion 32 in the radial direction. The coil 4 is fixed on the first substrate unit 31.
　ＦＰＣ３は、上下方向に積層される層構造として、ベースフィルム部３Ａ、導体部３Ｂ、および絶縁部３Ｃを有する。ベースフィルム部３Ａは、例えばポリイミドにより構成され、絶縁性および柔軟性を有する。導体部３Ｂは、例えば銅箔により構成され、ベースフィルム部３Ａ上に配置される。 The FPC 3 has a base film portion 3A, a conductor portion 3B, and an insulating portion 3C as a layered structure stacked in the vertical direction. The base film portion 3A is made of, for example, polyimide, and has insulation and flexibility. The conductor portion 3B is made of, for example, a copper foil, and is disposed on the base film portion 3A.
　導体部３Ｂは、第１配線部３Ｂ１と、第２配線部３Ｂ２を有する。第１配線部３Ｂ１と第２配線部３Ｂ２とは、絶縁される。第１配線部３Ｂ１は、第１ランド部Ｌ１と、第１端子部Ｔ１と、第１接続配線部ＣＮ１を有する。第２配線部３Ｂ２は、第２ランド部Ｌ２と、第２端子部Ｔ２と、第２接続配線部ＣＮ２を有する。 The conductor portion 3B has a first wiring portion 3B1 and a second wiring portion 3B2. The first wiring portion 3B1 and the second wiring portion 3B2 are insulated. The first wiring portion 3B1 has a first land portion L1, a first terminal portion T1, and a first connection wiring portion CN1. The second wiring portion 3B2 has a second land portion L2, a second terminal portion T2, and a second connection wiring portion CN2.
　絶縁部３Ｃは、導体部３Ｂ上に配置され、例えばポリイミドで構成されるレジスト層である。第１ランド部Ｌ１および第２ランド部Ｌ２は、第１基板部３１に含まれる。第１ランド部Ｌ１および第２ランド部Ｌ２の上方に絶縁部３Ｃは配置されないため、第１ランド部Ｌ１および第２ランド部Ｌ２は、上方に露出し、外部との電気的接続を可能とする。 The insulating portion 3C is a resist layer disposed on the conductor portion 3B and made of, for example, polyimide. The first land portion L1 and the second land portion L2 are included in the first substrate portion 31. Since the insulating portion 3C is not disposed above the first land portion L1 and the second land portion L2, the first land portion L1 and the second land portion L2 are exposed upward to enable electrical connection with the outside. .
　第１端子部Ｔ１および第２端子部Ｔ２の上方には絶縁部３Ｃが配置されないため、第１端子部Ｔ１および第２端子部Ｔ２は、上方に露出し、外部との電気的接続を可能とする。第１端子部Ｔ１は、第１接続配線部ＣＮ１によって第１ランド部Ｌ１と接続される。第２端子部Ｔ２は、第２接続配線部ＣＮ２によって第２ランド部Ｌ２と接続される。第１接続配線部ＣＮ１および第２接続配線部ＣＮ２の上方には絶縁部３Ｃが配置される。 Since the insulating portion 3C is not disposed above the first terminal portion T1 and the second terminal portion T2, the first terminal portion T1 and the second terminal portion T2 are exposed upward, allowing electrical connection with the outside Do. The first terminal portion T1 is connected to the first land portion L1 by the first connection wiring portion CN1. The second terminal portion T2 is connected to the second land portion L2 by the second connection wiring portion CN2. The insulating portion 3C is disposed above the first connection wiring portion CN1 and the second connection wiring portion CN2.
　コイル４から導出される第１導線４１の端部は、第１ランド部Ｌ１に電気的に接続される。コイル４から導出される第２導線４２の端部は、第２ランド部Ｌ２に電気的に接続される。第２導線４２は、コイル４の巻始め線であり、第１導線４１は、コイル４の巻終わり線である。第１導線４１および第２導線４２の各ランド部への電気的接続は、半田付け、または抵抗溶接により行われる。 The end of the first conducting wire 41 derived from the coil 4 is electrically connected to the first land portion L1. The end of the second conducting wire 42 derived from the coil 4 is electrically connected to the second land portion L2. The second conducting wire 42 is a winding start wire of the coil 4, and the first conducting wire 41 is a winding finish wire of the coil 4. Electrical connection to the lands of the first conducting wire 41 and the second conducting wire 42 is made by soldering or resistance welding.
＜１－３．ダンパーの構成＞
　次に、ダンパー９について説明する。ダンパー９は、図６Ａに上面視での平面図を示すように、上面視で円環状のシートである。ダンパー９は、例えば、発泡ポリウレタンやシリコン等により形成される。 <1-3. Damper configuration>
Next, the damper 9 will be described. The damper 9 is an annular sheet in top view as shown in a plan view in top view in FIG. 6A. The damper 9 is made of, for example, foamed polyurethane or silicon.
　ダンパー９は、おもり７２の下面に固定される。ダンパー９は、例えば、粘着シートによって、おもり７２に固定される。ダンパー９の外縁は、上面視でおもり７２の外縁と一致する。ダンパー９は、弾性部材８の第２リング部８２と上下方向に対向する。振動体７が振動する通常動作時には、ダンパー９は弾性部材８と接触せず、通常動作を妨げない。 The damper 9 is fixed to the lower surface of the weight 72. The damper 9 is fixed to the weight 72 by, for example, an adhesive sheet. The outer edge of the damper 9 coincides with the outer edge of the weight 72 in top view. The damper 9 vertically opposes the second ring portion 82 of the elastic member 8. At the time of the normal operation in which the vibrating body 7 vibrates, the damper 9 does not contact the elastic member 8 and does not disturb the normal operation.
　振動モータ１５を誤って落下させた場合、振動体７が大きく下方へ移動する。ここで、コイル４から導出された第１導線４１および第２導線４２は、上方を弾性部材８に覆われ、上方に弾性部材８の第１リング部８１が位置する。従って、振動体７が大きく移動すると、第１リング部８１が下方へ移動して第１導線４１および第２導線４２に接触する可能性がある。 When the vibration motor 15 is dropped by mistake, the vibration body 7 moves largely downward. Here, the first conductive wire 41 and the second conductive wire 42 drawn from the coil 4 are covered with the elastic member 8 at the upper side, and the first ring portion 81 of the elastic member 8 is located at the upper side. Therefore, when the vibrating body 7 moves largely, the first ring portion 81 may move downward and come in contact with the first conducting wire 41 and the second conducting wire 42.
　しかしながら、このときに、ダンパー９が下方へ移動して、第２リング部８２に接触することで衝撃が吸収されるので、第１リング部８１が第１導線４１および第２導線４２に接触したとしても、第１導線４１および第２導線４２の断線を抑制することができる。 However, at this time, since the damper 9 moves downward and contacts the second ring portion 82 to absorb the impact, the first ring portion 81 contacts the first conductive wire 41 and the second conductive wire 42. Also, disconnection of the first conductive wire 41 and the second conductive wire 42 can be suppressed.
　ダンパー９は、シート状であるので、振動体７の通常動作を妨げないとともに、高さ方向の寸法管理が容易となる。また、ダンパー９は、円環状であるので、落下衝撃時に第２リング部８２に全周にわたって接触する。よって、ダンパー９による支持により、振動体７が傾くことが抑制される。 Since the damper 9 is in the form of a sheet, the normal operation of the vibrating body 7 is not impeded, and dimensional control in the height direction is facilitated. Further, since the damper 9 is annular, it contacts the second ring portion 82 over the entire circumference at the time of a drop impact. Thus, the support of the damper 9 suppresses the tilting of the vibrating body 7.
　また、ダンパー９は、弾性部材８において最も外周側且つ最も下方に位置する第２リング部８２と上下方向に対向するので、通常動作時にダンパー９が弾性部材８に接触して通常動作が妨げられることを抑制できる。 Further, since the damper 9 vertically opposes the second ring portion 82 positioned on the outermost peripheral side and the lowermost position in the elastic member 8, the damper 9 contacts the elastic member 8 at the time of normal operation and the normal operation is interrupted. Can be suppressed.
　また、図６Ｂは、ダンパーの構成の変形例を示す上面視での平面図である。図６Ｂに示すダンパー９Ａ～９Ｃは、それぞれ独立した別部材であり、円弧状のシートである。周方向に等間隔に配置される。ダンパー９Ａ～９Ｃは、おもり７２の下面に固定され、各々の外周側縁は上面視でおもり７２の外縁と一致する。 Moreover, FIG. 6B is a top view in the top view which shows the modification of a structure of a damper. The dampers 9A to 9C shown in FIG. 6B are separate members independent of each other, and are arc-shaped sheets. It is arranged at equal intervals in the circumferential direction. The dampers 9A to 9C are fixed to the lower surface of the weight 72, and the outer peripheral side edge of each of the dampers 9A to 9C coincides with the outer edge of the weight 72 in top view.
　このようなダンパー９Ａ～９Ｃによれば、振動モータ１５の落下衝撃時に、ダンパー９Ａ～９Ｃが第２リング部８２に接触することで、振動体７はダンパー９Ａ～９Ｃにより支持され、振動体７が傾くことが抑制される。 According to such dampers 9A to 9C, the dampers 9A to 9C are in contact with the second ring portion 82 when the vibration motor 15 is dropped and the vibrator 7 is supported by the dampers 9A to 9C. Is suppressed.
　なお、複数のダンパーを等間隔に配置する実施形態は図６Ｂに限定されることはなく、ダンパーの個数によってダンパーの配置形態は変化する。また、おもり７２への固定のし易さでは、ダンパー９Ａ～９Ｃよりも先述したダンパー９のほうが有利である。 The embodiment in which a plurality of dampers are arranged at equal intervals is not limited to FIG. 6B, and the arrangement form of the dampers changes depending on the number of dampers. Further, the damper 9 described above is more advantageous than the dampers 9A to 9C in the ease of fixing to the weight 72.
　また、図７は、別の変形例に係るダンパー９０を用いた場合の振動モータ１５の構成を示す断面図であり、図３に対応する図である。 FIG. 7 is a cross-sectional view showing the configuration of the vibration motor 15 when a damper 90 according to another modification is used, and corresponds to FIG.
　図７においては、ダンパー９０は、円環状のシートであるが、先述したダンパー９と異なる点として、内周側から外周側へ向かうほど厚みが増加する構成を有する。 In FIG. 7, the damper 90 is an annular sheet, but has a configuration in which the thickness increases from the inner circumferential side to the outer circumferential side as a point different from the damper 9 described above.
　弾性部材８は、内周側へ向かうほど上方へ位置するため、ダンパー９０に近づくが、ダンパー９０は内周側へ向かうほど厚みが薄くなるので、ダンパー９０と弾性部材８との間の上下方向の間隔が狭まることを抑制できる。従って、通常動作時にダンパー９０が弾性部材８に接触することが抑制され、通常動作を妨げない。 The elastic member 8 approaches the damper 90 because it is positioned upward as it goes to the inner peripheral side, but the thickness of the damper 90 becomes thinner as it goes to the inner peripheral side, so the vertical direction between the damper 90 and the elastic member 8 It is possible to suppress the narrowing of the Therefore, the damper 90 is prevented from contacting the elastic member 8 during the normal operation, and the normal operation is not impeded.
　また、落下衝撃時には、厚みの厚いダンパー９０の外周側が先に、第１導線４１および第２導線４２の断線に影響の少ない第２リング部８２に接触するので、断線を抑制できる。また、ダンパー９０であれば、厚みを径方向に一定とするより、部材使用量を減らすことができる。 Further, at the time of drop impact, the outer peripheral side of the thick damper 90 comes first in contact with the second ring portion 82 that has little influence on the disconnection of the first conducting wire 41 and the second conducting wire 42, so that disconnection can be suppressed. Further, in the case of the damper 90, it is possible to reduce the amount of used members rather than making the thickness constant in the radial direction.
＜１－４．本実施形態による作用効果＞
　このように本実施形態に係る振動モータ１５は、筐体Ｃ１と、コイル４と、を有する静止部１０と、磁石７１を含み、前記静止部に対して上下方向に振動可能に支持される振動体７と、前記筐体と前記振動体の下面との間に配置される弾性部材８と、を備える。前記コイルから導出された導線４１，４２は、上方から前記弾性部材に覆われ、前記振動体の下面にダンパー９等が配置される。 <1-4. Operation and effect according to the present embodiment>
As described above, the vibration motor 15 according to the present embodiment includes the stationary portion 10 having the housing C1 and the coil 4 and the magnet 71, and the vibration is supported so as to be vertically vibrated with respect to the stationary portion. A body 7 and an elastic member 8 disposed between the housing and the lower surface of the vibrator. The conducting wires 41 and 42 derived from the coil are covered with the elastic member from above, and the damper 9 and the like are disposed on the lower surface of the vibrating body.
　このような構成によれば、落下衝撃時に振動体が下側へ移動した場合に、ダンパーによって衝撃が吸収されるので、弾性部材がコイルの導線に接触したとしても、導線の断線を抑制することができる。 According to such a configuration, the shock is absorbed by the damper when the vibrator moves downward at the time of a drop impact, so that even if the elastic member comes in contact with the lead of the coil, the breakage of the lead can be suppressed. Can.
　また、前記ダンパー９等は、シート状である。これにより、導線の断線を抑制しつつ、振動体の通常動作を妨げない。また、高さ方向の寸法管理が容易となる。 The damper 9 and the like are in the form of a sheet. Thereby, the normal operation of the vibrator is not disturbed while suppressing the disconnection of the lead wire. Also, dimensional control in the height direction is facilitated.
　また、前記ダンパー９等は、環状である。これにより、落下衝撃時に振動体はダンパーによって全周にわたり支持されるので、振動体が傾くことが抑制される。また、ダンパーを振動体に固定することが容易となる。 Moreover, the said damper 9 grade | etc., Is cyclic | annular. Thus, since the vibrating body is supported by the damper over the entire circumference at the time of a drop impact, tilting of the vibrating body is suppressed. Moreover, it becomes easy to fix a damper to a vibrating body.
　また、複数の前記ダンパー９Ａ～９Ｃは、周方向に等間隔に配置される。これにより、落下衝撃時にダンパーによる支持により振動体が傾くことが抑制される。 Further, the plurality of dampers 9A to 9C are arranged at equal intervals in the circumferential direction. This suppresses the tilting of the vibrating body due to the support by the damper at the time of a drop impact.
　また、前記弾性部材８は、前記振動体７の下面に接続される第１接続部８１と、前記第１接続部より下側、且つ前記第１接続部より外周側に配置されて、前記筐体Ｃ１に接続される第２接続部８２と、を有し、前記ダンパー９，９０等は、前記第２接続部と上下方向に対向する。これにより、ダンパーは、振動体の通常動作を妨げない。 Further, the elastic member 8 is disposed at a first connection portion 81 connected to the lower surface of the vibrating body 7, a lower side than the first connection portion, and an outer peripheral side than the first connection portion. And a second connection portion 82 connected to the body C1, and the dampers 9, 90 and the like face the second connection portion in the vertical direction. Thus, the damper does not interfere with the normal operation of the vibrator.
　また、前記ダンパー９０は、内周側から外周側へ向かうほど厚みが増加する。これにより、ダンパーは、振動体の通常動作を妨げない。また、落下衝撃時にはダンパーの外周側が先に、断線に影響が少ない弾性部材の第２接続部に接触するので、断線を抑制できる。また、ダンパーの部材使用量を減らすことができる。 Further, the thickness of the damper 90 increases as it goes from the inner circumferential side to the outer circumferential side. Thus, the damper does not interfere with the normal operation of the vibrator. In addition, since the outer peripheral side of the damper first contacts the second connection portion of the elastic member which has little influence on disconnection at the time of drop impact, disconnection can be suppressed. In addition, the amount of member used of the damper can be reduced.
＜１－５．その他＞
　以上、本発明の実施形態１について説明したが、本発明の趣旨の範囲内であれば、実施形態は種々の変形が可能である。 <1-5. Other>
The first embodiment of the present invention has been described above, but various modifications can be made to the embodiment within the scope of the present invention.
　例えば、ダンパーは、弾性部材の第２接続部と上下方向に対向することに限らず、ベースプレートの第１基台部と上下方向に対向し、第２接続部は当該対向位置よりも径方向内側に配置してもよい。この場合、落下衝撃時には、ダンパーが第１基台部に接触することで衝撃を吸収し、導線の断線を抑制できる。 For example, the damper is not limited to vertically opposed to the second connection portion of the elastic member, and vertically opposed to the first base portion of the base plate, and the second connection portion is radially inner than the opposed position. It may be located at In this case, at the time of a drop impact, the damper contacts the first base portion to absorb the impact, and the wire breakage can be suppressed.
＜２．実施形態２＞
　次に、本発明の一実施形態に係る、実施形態２の振動モータについて説明する。本実施形態の説明では、実施形態１の構成等と共通の部分があるため、これらの共通部分については説明を省略し、実施形態１とは異なる部分を中心に説明する。本実施形態では特に、タンパーの構成が実施形態１とは異なっている。 <2. Embodiment 2>
Next, a vibration motor of Embodiment 2 according to an embodiment of the present invention will be described. In the description of the present embodiment, since there are parts common to the configuration of the first embodiment and the like, the description of these common parts is omitted, and parts different from the first embodiment will be mainly described. In the present embodiment, in particular, the configuration of the tamper is different from that of the first embodiment.
＜２－１．実施形態２の振動モータの全体構成＞
　本実施形態の振動モータ１５の外観は、実施形態１の図１と同様である。図８は、図１においてＡ－Ａ線で切断した断面斜視図である。図９は、図１においてＡ－Ａ線で切断した断面図である。本実施形態において、振動モータ１５を下方で切断した一部断面斜視図は、実施形態１の図４と共通である。 <2-1. Overall Configuration of Vibration Motor of Embodiment 2>
The appearance of the vibration motor 15 of the present embodiment is the same as that of FIG. 1 of the first embodiment. FIG. 8 is a cross-sectional perspective view cut along line AA in FIG. FIG. 9 is a cross-sectional view taken along the line AA in FIG. In the present embodiment, a partial cross-sectional perspective view of the vibration motor 15 cut downward is the same as FIG. 4 of the first embodiment.
　本実施形態では、図８及び図９に示されるように、実施形態１におけるダンパー９がダンパー９１に置き換えられている点で相違している。また、図８では、第１ランド部Ｌ１は、後述するダンパー９１の下側に位置するので、図示されない。これらの点以外は、本実施形態の図８及び図９は、実施形態１の図２及び図３と共通であるため、重複した説明を省略する。 The present embodiment is different in that the damper 9 in the first embodiment is replaced by a damper 91 as shown in FIGS. 8 and 9. Moreover, in FIG. 8, since the 1st land part L1 is located under the damper 91 mentioned later, it is not illustrated. Since FIG. 8 and FIG. 9 of this embodiment are the same as FIG. 2 and FIG. 3 of Embodiment 1 except these points, the duplicate description is omitted.
＜２－２．コイル固定構造の構成＞
　次に、振動モータ１５に備えられるコイル固定構造について説明する。図１０は、本実施形態に係るコイル固定構造１５１の斜視図である。図１０は、実施形態１の図５に示されたコイル固定構造と比較して、接続部分４１１及び４２１が示されている点で相違しており、これらの点以外は共通している。 <2-2. Configuration of coil fixing structure>
Next, the coil fixing structure provided in the vibration motor 15 will be described. FIG. 10 is a perspective view of the coil fixing structure 151 according to the present embodiment. 10 is different from the coil fixing structure shown in FIG. 5 of the first embodiment in that connecting portions 411 and 421 are shown, and the other points are common.
　本実施形態の構成では、第１導線４１が第１ランド部Ｌ１へ電気的接続される接続部分４１１、および第２導線４２が第２ランド部Ｌ２へ電気的接続される接続部分４２１が形成される。 In the configuration of the present embodiment, a connection portion 411 in which the first conductive wire 41 is electrically connected to the first land portion L1 and a connection portion 421 in which the second conductive wire 42 is electrically connected to the second land portion L2 are formed. Ru.
＜２－３．ダンパーの構成＞
　次に、ダンパー９１について説明する。図１１は、ダンパー９１をコイル固定構造１５１に配置した状態を示す斜視図である。図１１に示すように、ダンパー９１は、ＦＰＣ３の第１基板部３１上に配置される。 <2-3. Damper configuration>
Next, the damper 91 will be described. FIG. 11 is a perspective view showing a state in which the damper 91 is disposed in the coil fixing structure 151. As shown in FIG. As shown in FIG. 11, the damper 91 is disposed on the first substrate portion 31 of the FPC 3.
　図１２Ａは、ダンパー９１およびコイル４の上面視での平面図である。図１２Ａに示すように、ダンパー９１は、上面視で円環状をしたシートであり、コイル４の周囲を取り囲む位置に配置される。ダンパー９１の内縁は、コイル４の外縁との間に隙間を有する。 FIG. 12A is a plan view of the damper 91 and the coil 4 in top view. As shown in FIG. 12A, the damper 91 is a sheet that is annular in a top view, and is disposed at a position surrounding the coil 4. The inner edge of the damper 91 has a gap with the outer edge of the coil 4.
　ダンパー９１は、第１ランド部Ｌ１および第２ランド部Ｌ２を上方から覆うように、第１基板部３１上に固定される。ダンパー９１の固定は、例えば、粘着テープにより行う。ダンパー９１が第１基板部３１上に固定された状態で、ダンパー９１は接続部分４１１，４２１を上方から覆う。 The damper 91 is fixed on the first substrate portion 31 so as to cover the first land portion L1 and the second land portion L2 from above. The damper 91 is fixed, for example, by an adhesive tape. In the state where the damper 91 is fixed on the first substrate portion 31, the damper 91 covers the connection portions 411 and 421 from above.
　振動モータ１５を誤って落下させた場合、振動体７が下方に大きく移動する。ここで、第１導線４１および第２導線４２を上方から弾性部材８の第１リング部８１が覆うので、弾性部材８が第１導線４１および第２導線４２に近づく。しかしながら、弾性部材８の第１リング部８１がダンパー９１に接触することで衝撃が吸収され、第１導線４１および第２導線４２の断線は抑制される。また、ダンパー９１は、接続部分４１１，４２１の保護を行うことができる。これにより、半田付け部分等の導通不良を抑制できる。 When the vibration motor 15 is dropped by mistake, the vibrator 7 largely moves downward. Here, since the first ring portion 81 of the elastic member 8 covers the first conducting wire 41 and the second conducting wire 42 from above, the elastic member 8 approaches the first conducting wire 41 and the second conducting wire 42. However, when the first ring portion 81 of the elastic member 8 contacts the damper 91, the impact is absorbed, and the disconnection of the first conductive wire 41 and the second conductive wire 42 is suppressed. Moreover, the damper 91 can protect the connection parts 411 and 421. Thereby, the conduction defect of a soldering part etc. can be suppressed.
　また、ダンパー９１は、シート状であるので、高さ方向の寸法管理が容易となり、振動体７が振動する通常動作時に弾性部材８がダンパー９１に接触することを抑制できる。すなわち、ダンパー９１は、通常動作を妨げない。 Further, since the damper 91 is in the form of a sheet, dimensional control in the height direction is facilitated, and the elastic member 8 can be prevented from contacting the damper 91 during normal operation in which the vibrating body 7 vibrates. That is, the damper 91 does not disturb the normal operation.
　また、ダンパー９１は円環状であるため、落下衝撃時に弾性部材８がダンパー９１に接触すると、弾性部材８はダンパー９１によって全周にわたり支持されるので、振動体７が傾くことが抑制される。 In addition, since the damper 91 has an annular shape, when the elastic member 8 contacts the damper 91 at the time of a drop impact, the elastic member 8 is supported by the damper 91 over the entire circumference, so that the vibrator 7 is prevented from tilting.
＜２－４．ダンパーの第１変形例＞
　以下、ダンパーの変形例について説明する。図１２Ｂは、第１変形例に係るダンパー９１Ａ～９１Ｃおよびコイル４の上面視での平面図である。図１２Ｂに示すように、ダンパー９１Ａ～９１Ｃは、独立した別個のシート状部材であり、コイル４の周囲を取り囲むように周方向に等間隔に配置される。 <2-4. First Modification of Damper>
Hereinafter, modifications of the damper will be described. FIG. 12B is a plan view of the dampers 91A to 91C and the coil 4 according to the first modification viewed from above. As shown in FIG. 12B, the dampers 91A to 91C are independent and separate sheet-like members, and are arranged at equal intervals in the circumferential direction so as to surround the periphery of the coil 4.
　これにより、落下衝撃時に弾性部材８がダンパー９１Ａ～９１Ｃに接触すると、弾性部材８はダンパー９１Ａ～９１Ｃによって支持されるので、振動体７が傾くことが抑制される。 Thus, when the elastic member 8 comes in contact with the dampers 91A to 91C at the time of a drop impact, the elastic member 8 is supported by the dampers 91A to 91C, so that the vibrator 7 is prevented from being inclined.
　なお、第１基板部３１への固定のし易さについては、ダンパー９１Ａ～９１Ｃよりも先述したダンパー９１のほうが有利である。また、複数のダンパーを等間隔に配置する形態は、図１２Ｂに示すものに限定されず、ダンパーの個数によって配置形態は変化する。 The damper 91 described above is more advantageous than the dampers 91A to 91C with regard to the ease of fixing to the first substrate portion 31. Moreover, the form which arrange | positions several dampers at equal intervals is not limited to what is shown to FIG. 12B, An arrangement form changes with the number of objects of a damper.
＜２－５．ダンパーの第２変形例＞
　図１３は、第２変形例に係るダンパー９２をコイル固定構造１５１に配置した構成を示す斜視図である。 <2-5. Second Modified Example of Damper>
FIG. 13 is a perspective view showing a configuration in which the damper 92 according to the second modification is disposed in the coil fixing structure 151. As shown in FIG.
　ダンパー９２は、接続部分４１１，４２１を上方から覆うように第１基板部３１上に塗布される接着剤から形成される。すなわち、ダンパー９２は、硬化した接着剤からのみ構成される。接着剤は絶縁性を有する。 The damper 92 is formed of an adhesive applied on the first substrate portion 31 so as to cover the connection portions 411 and 421 from above. That is, the damper 92 is composed only of the cured adhesive. The adhesive has insulating properties.
　これにより、落下衝撃時には、弾性部材８の第１リング部８１がダンパー９２に接触することで衝撃が吸収され、第１導線４１および第２導線４２の断線が抑制される。 Thereby, at the time of a drop impact, the first ring portion 81 of the elastic member 8 contacts the damper 92 to absorb the impact, and the disconnection of the first conductive wire 41 and the second conductive wire 42 is suppressed.
　このように接着剤の塗布によりダンパー９２を構成できるので、簡易的および低コストに導線の断線を抑制できる。 As described above, the damper 92 can be configured by applying the adhesive, so that wire breakage can be suppressed in a simple manner and at low cost.
＜２－６．ダンパーの第３変形例＞
　図１４は、第３変形例に係るダンパー９３をコイル固定構造１５１に配置した構成を示す斜視図である。 <2-6. Third Modification of Damper>
FIG. 14 is a perspective view showing a configuration in which the damper 93 according to the third modification is disposed in the coil fixing structure 151. As shown in FIG.
　ダンパー９３は、接着剤９３１およびワッシャ９３２から構成される。まず、接着剤９３１が、接続部分４１１，４２１を上方から覆うように第１基板部３１上に塗布される。そして、接着剤９３１が硬化する前に、ワッシャ９３２により接着剤９３１を上方から押さえ込む。ワッシャ９３２は、円環状の薄板部材であり、コイル４の周囲を取り囲むように配置される。ワッシャ９３２の内縁は、コイル４の外縁との間に隙間を有する。 The damper 93 is composed of an adhesive 931 and a washer 932. First, an adhesive 931 is applied onto the first substrate portion 31 so as to cover the connection portions 411 and 421 from above. Then, before the adhesive 931 is cured, the adhesive 931 is pressed from above by the washer 932. The washer 932 is an annular thin plate member, and is disposed to surround the coil 4. The inner edge of the washer 932 has a gap with the outer edge of the coil 4.
　接着剤９３１が硬化することで、ワッシャ９３２は第１基板部３１に固定され、ダンパー９３が形成される。 By curing the adhesive 931, the washer 932 is fixed to the first substrate portion 31, and the damper 93 is formed.
　これにより、落下衝撃時には、弾性部材８の第１リング部８１がワッシャ９３２に接触することで衝撃が吸収され、第１導線４１および第２導線４２の断線が抑制される。また、塗布した接着剤９３１の高さ方向寸法のバラツキをワッシャ９３２による押さえ込みにより吸収できるので、高さ方向寸法の管理が容易となる。すなわち、先述した第２変形例よりも接着剤の塗布工程の精度が低くて済む。 Thereby, at the time of a drop impact, the first ring portion 81 of the elastic member 8 comes into contact with the washer 932 to absorb the impact, and the disconnection of the first conductive wire 41 and the second conductive wire 42 is suppressed. In addition, since the variation in the dimension in the height direction of the applied adhesive 931 can be absorbed by the pressing by the washer 932, management of the dimension in the height direction becomes easy. That is, the accuracy of the application process of the adhesive may be lower than that of the second modification described above.
　また、ワッシャ９３２は、絶縁材から構成されるので、第１導線４１と第２導線４２のショートを抑制できる。 Further, since the washer 932 is made of an insulating material, a short circuit between the first conducting wire 41 and the second conducting wire 42 can be suppressed.
＜２－７．本実施形態による作用効果＞
　このように本実施形態に係る振動モータ１５は、筐体Ｃ１と、コイル４と、基板３と、を有する静止部１０と、磁石７１を含み、前記静止部に対して上下方向に振動可能に支持される振動体７と、弾性部材８と、を備える。前記コイル、前記基板、前記振動体、および前記弾性部材は、前記筐体の内部に収容される。前記弾性部材は、前記筐体と前記振動体の下面との間に配置される。前記コイルから導出された導線４１，４２は、前記基板に電気的接続され、上方から前記弾性部材に覆われる。前記基板上には、前記導線の前記基板への接続部分４１１，４２１を上方から覆うダンパー９１等が配置される。 <2-7. Operation and effect according to the present embodiment>
As described above, the vibration motor 15 according to the present embodiment includes the stationary portion 10 having the housing C1, the coil 4, and the substrate 3, and the magnet 71, and can vibrate in the vertical direction with respect to the stationary portion. A vibrator 7 to be supported and an elastic member 8 are provided. The coil, the substrate, the vibrator, and the elastic member are accommodated in the housing. The elastic member is disposed between the housing and the lower surface of the vibrator. Conductors 41 and 42 derived from the coil are electrically connected to the substrate and covered with the elastic member from above. On the substrate, a damper 91 or the like that covers the connection portions 411 and 421 of the conducting wire to the substrate from above is disposed.
　このような構成によれば、落下衝撃時に振動体が下側へ移動した場合に、弾性部材がダンパーに接触することで衝撃が吸収されるので、導線の断線を抑制することができる。また、ダンパーによって、導線の接続部分の保護を行うことができる。 According to such a configuration, when the vibrating body moves downward at the time of a drop impact, the impact is absorbed by the elastic member coming into contact with the damper, so that the wire breakage can be suppressed. In addition, the damper can protect the connecting portion of the conducting wire.
　また、前記ダンパー９１等は、シート状である。これにより、導線保護部の高さ方向の寸法管理が容易となり、振動体の通常動作を妨げない。 The damper 91 and the like are in the form of a sheet. This facilitates dimensional control in the height direction of the wire protection portion and does not disturb the normal operation of the vibrator.
　また、前記ダンパー９２は、接着剤のみから構成される。これにより、接着剤の塗布によりダンパーを構成できるので、簡易的および低コストに導線の断線を抑制することができる。 The damper 92 is made of only an adhesive. Thereby, since a damper can be comprised by application of an adhesive agent, the disconnection of conducting wire can be suppressed simply and at low cost.
　また、前記ダンパー９３は、前記接続部分を覆う接着剤９３１と、前記接着剤の上側に配置されるワッシャ９３２と、を有する。これにより、接着剤を塗布後に、接着剤をワッシャにより押さえ込むことでダンパーが構成される。従って、塗布した接着剤の高さ方向寸法のバラツキをワッシャにより吸収でき、導線保護部の高さ方向の寸法管理が容易となる。すなわち、接着剤の塗布工程の精度が低くて済む。 Further, the damper 93 has an adhesive 931 covering the connection portion, and a washer 932 disposed on the upper side of the adhesive. Thereby, after apply | coating an adhesive agent, a damper is comprised by pressing down an adhesive agent by a washer. Therefore, the variation in the dimension in the height direction of the applied adhesive can be absorbed by the washer, and the dimension control in the height direction of the wire protection portion becomes easy. That is, the accuracy of the adhesive application process may be low.
　また、前記ワッシャ９３２は、絶縁材である。これにより、導線のショートを抑制することができる。 The washer 932 is an insulating material. Thereby, the short circuit of the conducting wire can be suppressed.
　また、前記ダンパー９１等は、環状である。これにより、落下衝撃時に弾性部材はダンパーによって全周にわたり支持されるので、振動体が傾くことが抑制される。また、ダンパーがシート状等である場合は、ダンパーを基板に固定することが容易となる。 The damper 91 and the like are annular. As a result, since the elastic member is supported by the damper over the entire circumference at the time of drop impact, tilting of the vibrating body is suppressed. In addition, when the damper is in the form of a sheet or the like, the damper can be easily fixed to the substrate.
　また、複数の前記ダンパー９１Ａ～９１Ｃは、周方向に等間隔に配置される。これにより、落下衝撃時に弾性部材がダンパーにより支持され、振動体が傾くことが抑制される。 Further, the plurality of dampers 91A to 91C are arranged at equal intervals in the circumferential direction. Thus, the elastic member is supported by the damper at the time of a drop impact, and tilting of the vibrating body is suppressed.
＜２－８．その他＞
　以上、本発明の実施形態２について説明したが、本発明の趣旨の範囲内であれば、実施形態は種々の変形が可能である。 <2-8. Other>
As mentioned above, although Embodiment 2 of this invention was demonstrated, within the range of the meaning of this invention, embodiment can be variously deformed.
　例えば、ダンパー９１またはワッシャ９３２の内径をコイル４の外径と一致させてもよい。この場合、ダンパー９１またはワッシャ９３２の組み付け時の位置決めが容易となる。 For example, the inner diameter of the damper 91 or the washer 932 may be matched with the outer diameter of the coil 4. In this case, positioning at the time of assembly of the damper 91 or the washer 932 is facilitated.
　本発明は、例えばスマートフォン、ウエアラブル機器などに備えられる振動モータに利用することができる。 The present invention can be used, for example, for a vibration motor provided in a smartphone, wearable device or the like.
　１・・・ベースプレート、１１・・・第１基台部、１１１・・・固定部、１２・・・第２基台部、１３・・・接続台部、２・・・ケース、２１・・・蓋部、２２・・・開口部、３・・・ＦＰＣ（フレキシブルプリント基板）、３１・・・第１基板部、３２・・・第２基板部、３３・・・接続基板部、３Ａ・・・ベースフィルム部、３Ｂ・・・導体部、３Ｃ・・・絶縁部、３Ｂ１・・・第１配線部、３Ｂ２・・・第２配線部、Ｌ１・・・第１ランド部、Ｌ２・・・第２ランド部、Ｔ１・・・第１端子部、Ｔ２・・・第２端子部、ＣＮ１・・・第１接続配線部、ＣＮ２・・・第２接続配線部、４・・・コイル、４１・・・第１導線、４２・・・第２導線、５・・・シャフト、５１・・・基部、５２・・・突出部、６・・・ヨーク部、６１・・・底部、６２・・・壁部、７・・・振動体、７１・・・磁石、７２・・・おもり、７３・・・ポールピース、８・・・弾性部材、８１・・・第１リング部、８２・・・第２リング部、８３・・・接続部、９，９Ａ～９Ｃ，９０，９１，９１Ａ～９１Ｃ，９２，９３・・・ダンパー、９３１・・・接着剤、９３２・・・ワッシャ、１０・・・静止部、１５・・・振動モータ、Ｃ１・・・筐体、Ｊ・・・中心軸 DESCRIPTION OF SYMBOLS 1 ... Base plate, 11 ... 1st base part, 111 ... Fixed part, 12 ... 2nd base part, 13 ... Connection stand part, 2 ... Case, 21 ... · Lid portion, 22 · · · Opening, 3 · · · FPC (flexible printed circuit board), 31 · · · first substrate portion, 32 · · · second substrate portion, 33 · · · connection substrate portion, 3A · · · · · Base film portion, 3B · · · conductor portion, 3C · · · insulating portion, 3B1 · · · first wiring portion, 3B2 · · · second wiring portion, L · · · · · 1 land portion, L · · · · · Second land portion, T1: first terminal portion, T2: second terminal portion, CN1: first connection wiring portion, CN2: second connection wiring portion, 4: coil, 41 ... 1st lead, 42 ... 2nd lead, 5 ... shaft, 51 ... base, 52 ... protrusion, 6 ... yoke, 61 ... Part, 62 ... Wall part, 7 ... Vibrator, 71 ... Magnet, 72 ... Weight, 73 ... Pole piece, 8 ... Elastic member, 81 ... First ring part , 82: second ring part, 83: connection part, 9, 9A to 9C, 90, 91, 91A to 91C, 92, 93: damper, 931: adhesive, 932: Washer, 10: stationary part, 15: vibration motor, C1: housing, J: central axis

Claims (13)

  1. 　筐体と、コイルと、を有する静止部と、
    　磁石を含み、前記静止部に対して上下方向に振動可能に支持される振動体と、
    　前記筐体と前記振動体の下面との間に配置される弾性部材と、
    　を備え、
    　前記コイルから導出された導線は、上方から前記弾性部材に覆われ、
    　前記振動体の下面にダンパーが配置される、
    　振動モータ。     A stationary part having a housing and a coil;
    A vibrator including a magnet and vertically and vibratably supported with respect to the stationary portion;
    An elastic member disposed between the housing and the lower surface of the vibrator;
    Equipped with
    The lead wire derived from the coil is covered by the elastic member from above,
    A damper is disposed on the lower surface of the vibrating body,
    Vibration motor.
  2. 　前記ダンパーは、シート状である、請求項１に記載の振動モータ。 The vibration motor according to claim 1, wherein the damper is in the form of a sheet.
  3. 　前記ダンパーは、環状である、請求項１に記載の振動モータ。 The vibration motor according to claim 1, wherein the damper is annular.
  4. 　複数の前記ダンパーは、周方向に等間隔に配置される、請求項１に記載の振動モータ。 The vibration motor according to claim 1, wherein the plurality of dampers are arranged at equal intervals in a circumferential direction.
  5. 　前記弾性部材は、
    　前記振動体の下面に接続される第１接続部と、
    　前記第１接続部より下側、且つ前記第１接続部より外周側に配置されて、前記筐体に接続される第２接続部と、
    　を有し、
    　前記ダンパーは、前記第２接続部と上下方向に対向する、請求項１から請求項４のいずれか１項に記載の振動モータ。     The elastic member is
    A first connection portion connected to the lower surface of the vibrator;
    A second connection portion disposed below the first connection portion and on an outer peripheral side of the first connection portion and connected to the housing;
    Have
    The vibration motor according to any one of claims 1 to 4, wherein the damper is vertically opposed to the second connection portion.
  6. 　前記ダンパーは、内周側から外周側へ向かうほど厚みが増加する、請求項５に記載の振動モータ。 The vibration motor according to claim 5, wherein the thickness of the damper increases from the inner circumferential side toward the outer circumferential side.
  7. 　筐体と、コイルと、基板と、を有する静止部と、
    　磁石を含み、前記静止部に対して上下方向に振動可能に支持される振動体と、
    　弾性部材と、
    　を備え、
    　前記コイル、前記基板、前記振動体、および前記弾性部材は、前記筐体の内部に収容され、
    　前記弾性部材は、前記筐体と前記振動体の下面との間に配置され、
    　前記コイルから導出された導線は、前記基板に電気的接続され、上方から前記弾性部材に覆われ、
    　前記基板上には、前記導線の前記基板への接続部分を上方から覆うダンパーが配置される、
    　振動モータ。     A stationary portion having a housing, a coil, and a substrate;
    A vibrator including a magnet and vertically and vibratably supported with respect to the stationary portion;
    An elastic member,
    Equipped with
    The coil, the substrate, the vibrator, and the elastic member are accommodated in the housing.
    The elastic member is disposed between the housing and the lower surface of the vibrator.
    The lead wire derived from the coil is electrically connected to the substrate and covered with the elastic member from above,
    A damper is disposed on the substrate to cover the connection portion of the conducting wire to the substrate from above.
    Vibration motor.
  8. 　前記ダンパーは、シート状である、請求項７に記載の振動モータ。 The vibration motor according to claim 7, wherein the damper is in the form of a sheet.
  9. 　前記ダンパーは、接着剤のみから構成される、請求項７に記載の振動モータ。 The vibration motor according to claim 7, wherein the damper comprises only an adhesive.
  10. 　前記ダンパーは、前記接続部分を覆う接着剤と、前記接着剤の上側に配置されるワッシャと、を有する、請求項７に記載の振動モータ。 The vibration motor according to claim 7, wherein the damper includes an adhesive covering the connecting portion, and a washer disposed on the upper side of the adhesive.
  11. 　前記ワッシャは、絶縁材である、請求項１０に記載の振動モータ。 The vibration motor according to claim 10, wherein the washer is an insulating material.
  12. 　前記ダンパーは、環状である、請求項７から請求項１１のいずれか１項に記載の振動モータ。 The vibration motor according to any one of claims 7 to 11, wherein the damper is annular.
  13. 　複数の前記ダンパーは、周方向に等間隔に配置される、請求項７から請求項１１のいずれか１項に記載の振動モータ。
          The vibration motor according to any one of claims 7 to 11, wherein the plurality of dampers are arranged at equal intervals in the circumferential direction.
PCT/JP2018/045912 2017-12-27 2018-12-13 Oscillating motor WO2019131180A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2017252083A JP2019118228A (en) 2017-12-27 2017-12-27 Vibration motor
JP2017252086A JP2019118229A (en) 2017-12-27 2017-12-27 Vibration motor
JP2017-252083 2017-12-27
JP2017-252086 2017-12-27

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130026860A1 (en) * 2011-07-29 2013-01-31 Samsung Electro-Mechanics Co., Ltd. Vibration-generating device
KR20150035896A (en) * 2015-03-02 2015-04-07 자화전자(주) Linear vibration generating device
CN105846638A (en) * 2016-05-25 2016-08-10 歌尔声学股份有限公司 Linear vibration motor
JP2017099153A (en) * 2015-11-25 2017-06-01 日本電産セイミツ株式会社 Vibration motor, silent notification device, and manufacturing method of vibration motor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130026860A1 (en) * 2011-07-29 2013-01-31 Samsung Electro-Mechanics Co., Ltd. Vibration-generating device
KR20150035896A (en) * 2015-03-02 2015-04-07 자화전자(주) Linear vibration generating device
JP2017099153A (en) * 2015-11-25 2017-06-01 日本電産セイミツ株式会社 Vibration motor, silent notification device, and manufacturing method of vibration motor
CN105846638A (en) * 2016-05-25 2016-08-10 歌尔声学股份有限公司 Linear vibration motor

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