WO2022134238A1 - Vibration motor - Google Patents

Vibration motor Download PDF

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Publication number
WO2022134238A1
WO2022134238A1 PCT/CN2021/071358 CN2021071358W WO2022134238A1 WO 2022134238 A1 WO2022134238 A1 WO 2022134238A1 CN 2021071358 W CN2021071358 W CN 2021071358W WO 2022134238 A1 WO2022134238 A1 WO 2022134238A1
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WO
WIPO (PCT)
Prior art keywords
vibration motor
arm
along
magnetic
motor according
Prior art date
Application number
PCT/CN2021/071358
Other languages
French (fr)
Chinese (zh)
Inventor
马杰
毛路斌
崔志勇
刘柯佳
Original Assignee
瑞声声学科技(深圳)有限公司
瑞声光电科技(常州)有限公司
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Filing date
Publication date
Application filed by 瑞声声学科技(深圳)有限公司, 瑞声光电科技(常州)有限公司 filed Critical 瑞声声学科技(深圳)有限公司
Publication of WO2022134238A1 publication Critical patent/WO2022134238A1/en

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Classifications

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

Definitions

  • the present application relates to the technical field of electromagnetic motion, and in particular, to a vibration motor.
  • the existing dual-frequency vibration motors are driven separately in two vibration directions, and most of the coils are placed inside the space surrounded by the vibrator.
  • the purpose of the present application is to provide a vibration motor, which aims to solve the problems of complicated coil design and large overall size of the vibration motor caused by the coil being located inside the space enclosed by the vibrator in the existing vibration motor.
  • a vibration motor includes a housing with an accommodation space, a vibrator assembly suspended in the accommodation space by an elastic member, and two stator assemblies oppositely arranged along a first direction and fixedly connected to the casing, the The vibrator assembly can vibrate back and forth at least along the second direction and the third direction, the first direction is perpendicular to the plane where the second direction and the third direction are located, and the elastic member can provide restoring force for the vibrator assembly, so
  • the stator assembly includes a first magnetic conductive sheet fixed on the housing and a coil stacked on the first magnetic conductive sheet through a circuit board, the circuit board is used to supply power to the coil, and the vibrator assembly is connected to the coil. The coils are opposite and spaced apart.
  • the stator assembly further includes an iron core, and the coil is disposed around the iron core.
  • a through hole is provided on the circuit board, and the iron core is connected to the first magnetic conductive sheet through the through hole.
  • the circuit board includes a fixing section stacked on the first magnetic conductive sheet and a connecting section for connecting the two fixing sections, and the through hole is formed in the on the fixed segment.
  • the vibrator assembly includes two magnetic steels and a skeleton for connecting the two magnetic steels, and each of the magnetic steels is in a one-to-one correspondence with each of the coils and is arranged at intervals. .
  • the magnetic steel is magnetized along the first direction, and the magnetization interface of the magnetic steel is not 90° from the second direction and the third direction. angle.
  • the vibration motor further includes baffles located on both sides of the magnetic steel along the second direction and spaced from the magnetic steel.
  • the frame includes a connecting piece and clamping pieces disposed on opposite ends of the connecting piece along the first direction, the clamping pieces being used to hold the magnetic Steel clamps.
  • the clamping member includes a first connecting portion fixed on the connecting member and a plurality of bendings from a circumferential direction of the first connecting portion in a direction away from the connecting member Folding and extending and clamping the magnetic steel.
  • a second magnetic conductive sheet is further disposed between the magnetic steel and the first connecting portion, and the clamping portion can connect the second magnetic conductive sheet through the magnetic steel.
  • the magnetic sheet is abutted against the first connecting portion.
  • the elastic member includes a connecting arm connected with the connecting member, a fixing arm located on both sides of the connecting arm and connected with the housing, and connecting the connecting arm with the housing. the elastic arm connected to the fixed arm.
  • the connecting member includes a first side portion and a second side portion oppositely disposed along the third direction
  • the connecting arm includes a first side portion connected to the first side portion.
  • Two connecting portions and two extending portions extending from opposite sides of the second connecting portion along the second direction toward the second side portion, the second direction being perpendicular to the third direction.
  • the elastic arm includes a plurality of body parts arranged in sequence along the second direction, a first bending part for connecting the body parts end to end, and a first bending part for connecting the body parts end to end;
  • the end of the body part close to the extension part that is far away from the first bending part is connected with the second bending part of the extension part that is far away from the second connecting part;
  • One end of the body part away from the first bending part is connected with the third bending part of the fixing arm.
  • the body portion is provided with a through groove extending through the body portion along the second direction.
  • the fixing arm includes a third connecting portion connected with the third bending portion, and fixing portions on opposite ends of the third connecting portion along the first direction. part, the fixing part is connected with the casing, so that the third connecting part is opposite to the casing and arranged at intervals.
  • the two stator assemblies are respectively arranged on both sides of the vibrator assembly, so as to avoid the vibrator assembly being arranged around the sub-assemblies, reducing the complexity of arranging and designing coils on the vibration motor and reducing the size of the vibration motor.
  • the coil, the circuit board and the first magnetic conductive sheet are sequentially stacked and arranged on the casing, the assembly is simple, the assembly efficiency can be improved, and the manufacturing cost can be reduced.
  • Fig. 1 is the exploded structure schematic diagram of the vibration motor of the application
  • Fig. 2 is the axial view of the vibration motor of the application
  • Fig. 3 is the top view of the vibration motor shown in Fig. 2;
  • Fig. 4 is A-A sectional view in Fig. 2;
  • Fig. 5 is B-B in Fig. 2 sectional view
  • Fig. 6 is the axial view of the elastic member in the vibration motor shown in Fig. 1;
  • Fig. 7 is the front view of the elastic member shown in Fig. 6;
  • FIG. 8 is a front view of the magnetic steel in the vibration motor shown in FIG. 1 .
  • the vibration motor 10 includes a housing 100 , an elastic member 200 , a vibrator assembly 300 , two stator assemblies 400 and a circuit board 500 .
  • the casing 100 has a receiving space 101 .
  • the housing 100 includes an upper cover 110 and a lower cover 120 which are disposed opposite to each other.
  • the upper cover 110 includes a first body and first side walls located at both ends of the first body along the first direction.
  • the lower cover 120 includes a second body and second side walls located at both ends of the second body along the second direction.
  • the first side wall is bent and extended from the first body to be connected to the second body
  • the second side wall is bent and extended from the second body to be connected to the first body
  • the upper cover 110 and the lower cover 120 are surrounded to form a receiving space 101 .
  • the upper cover 110 and the lower cover 120 may be integrated by bonding or ultrasonic welding.
  • the vibrator assembly 300 is suspended in the receiving space 101 by the elastic member 200 , and the two stator assemblies 400 are oppositely disposed along the first direction and are fixedly connected to the housing 100 .
  • the vibrator assembly 300 can vibrate back and forth at least along the second direction and the third direction, the first direction is perpendicular to the plane of the second direction and the third direction, the elastic member 200 can provide restoring force for the vibrator assembly 300, and the stator assembly 400 comprises a The first magnetic conductive sheet 410 on the body 100 and the coil 420 stacked on the first magnetic conductive sheet 410 through the circuit board 500 are arranged.
  • the two stator assemblies 400 are respectively arranged on both sides of the vibrator assembly 300, so that the vibrator assembly 300 is prevented from being arranged around the subassemblies 400, the complexity of arranging and designing the coils 420 on the vibration motor 10 is reduced, and the vibration motor 10 can be reduced in size.
  • the coil 420, the circuit board 500 and the first magnetic conductive sheet 410 are stacked and arranged on the housing 100 in sequence, and the assembly is simple, which can improve the assembly efficiency and reduce the manufacturing cost.
  • the first direction is parallel to the direction indicated by the arrow X in FIG. 4
  • the second direction is parallel to the direction indicated by the arrow Y in FIGS. 5 and 8
  • the third direction is parallel to the direction in FIGS. 4 , 5 and 8 The direction indicated by arrow Z.
  • the stator assembly 400 further includes an iron core 430 , and the coil 420 is arranged around the iron core 430 .
  • the iron core 430 can be polarized to have a polarity after the coil 420 is energized, thereby improving the attractive force of the stator assembly 400 to the vibrator assembly 300 and improving the vibration intensity of the vibration motor 10 .
  • the iron core 430 is in the shape of a rounded cuboid, and the coil 420 is arranged on the iron core 430 in the shape of a racetrack ring. It can be understood that in other embodiments, the iron core 430 may also have other shapes such as cylindrical, square, and rhombus.
  • the circuit board 500 is provided with a through hole 501 , and the iron core 430 is connected to the first magnetic conductive sheet 410 through the through hole 501 .
  • the first magnetic conductive sheet 410 is used to prevent magnetic leakage on the side of the coil 420 away from the vibrator assembly 300 , and the iron core 430 can be connected to the housing 100 through the first magnetic conductive sheet 410 .
  • the iron core 430 can also serve as a positioning structure to facilitate the installation of the circuit board 500 and the coil 420 .
  • the circuit board 500 includes a fixing segment 510 stacked on the first magnetic conductive sheet 410 and a connecting segment 520 for connecting the two fixing segments 510 .
  • the through hole 501 is formed on the fixing segment 510 .
  • the coil 420 is stacked on the first magnetic conductive sheet 410 through the fixing section 510 .
  • the circuit board 500 is an FPC.
  • the two fixing sections 510 are disposed opposite to each other along the first direction and extend from the connecting section 520 along the third direction, are sleeved on the iron core 430 through the through hole 501 and inserted into the receiving space 101, so that the two coils 420 pass through the circuit board 500 in series.
  • the vibrator assembly 300 includes two magnetic steels 310 and a skeleton 320 for connecting the two magnetic steels 310 , and the magnetic steels 310 are in one-to-one correspondence
  • the coils 420 are opposed to each other and arranged at intervals.
  • the two magnetic steels 310 are connected together by the skeleton 320 , and each magnetic steel 310 interacts with the corresponding coil 420 and the iron core 430 to provide the vibration driving force of the vibrator assembly 300 .
  • the vibration effect of the vibrator assembly 300 can be improved by increasing the mass of the frame 320 . As shown in FIG.
  • the magnet steel 310 is magnetized along the first direction, that is, magnetized along the thickness direction of the magnet steel 310 .
  • the magnetization interface a of the magnetic steel 310 forms an included angle other than 90° with the second direction and the third direction.
  • the second direction is perpendicular to the third direction, and the vibrator assembly 300 has a first vibration mode along the second direction and a second vibration mode along the third direction. After the coil 420 is energized, a vibration driving force F perpendicular to the magnetization interface a is formed on the magnetic steel 310.
  • the driving frequency of the vibration driving force F is close to the first vibration mode or the second vibration mode
  • the corresponding first vibration The mode or the second vibration mode is excited, causing the vibrator assembly 300 to vibrate in the second direction or the third direction, thereby driving the vibrator assembly 300 to vibrate back and forth in the vibration direction in the receiving space 101 .
  • the vibration motor 10 further includes baffles 600 located on both sides of the magnetic steel 310 along the second direction and spaced from the magnetic steel 310 .
  • the blocking piece 600 can buffer the impact force of the vibrator assembly 300 on the casing 100 .
  • the skeleton 320 includes a connecting piece 321 and clamping pieces 322 disposed on opposite ends of the connecting piece 321 along the first direction.
  • the clamping member 322 can be better connected to the magnetic steel 310 to prevent the magnetic steel 310 from being displaced or falling off relative to the vibrator assembly 300 during the vibration process of the vibrator assembly 300 , resulting in reduced performance of the vibration motor 10 , and even causing the vibration motor 10 . cannot be used.
  • the clamping member 322 includes a first connecting portion 3221 fixed on the connecting member 321 and a plurality of clips that are bent and extended away from the connecting member 321 from the circumferential direction of the first connecting portion 3221 to clamp the magnetic steel 310 Holder 3222.
  • the connection stability of the magnetic steel 310 can be further improved.
  • the shape of the magnetic steel 310 is a rectangular parallelepiped.
  • the number of the clamping portions 3222 is set to four, and each clamping portion 3222 corresponds to each side surface of the magnetic steel 310 one-to-one. Clamp it.
  • the number of clamping portions 3222 may be set according to the specific shape of the magnetic steel 310 to better clamp the magnetic steel 310 . Even for some shapes, for example, the magnetic steel 310 in the shape of a cylinder or an elliptical column, an arc surface that fits with the outer surface of the magnetic steel 310 can be provided on the clamping portion 3222 to better clamp the magnetic steel 310 .
  • a second magnetic conductive sheet 330 is further arranged between the magnetic steel 310 and the first connecting portion 3221 , and the clamping portion 3222 can push the second magnetic conductive sheet 330 against the magnetic steel 310 through the magnetic steel 310 .
  • the magnetic steel 310 and the second magnetic conductive sheet 330 can be better clamped to prevent relative movement and falling off during the vibration process.
  • the second magnetic conductive sheet 330 is used to prevent magnetic leakage on the side of the magnetic steel 310 close to the first connecting portion 3221 .
  • the elastic member 200 includes a connecting arm 210 connected with the connecting member 321 , and is located on both sides of the connecting arm 210 and is connected to the housing.
  • the fixed arm 220 connected by 100 and the elastic arm 230 connecting the connecting arm 210 with the fixed arm 220.
  • the fixing arm 220 , the elastic arm 230 and the connecting arm 210 are disposed along the second direction, and are used to provide the vibrator assembly 300 with restoring force in the second direction and the second direction.
  • the elastic member 200 can also be in other shapes, as long as it can provide the restoring force of the vibrator assembly 300 in the second direction and the third direction.
  • the connecting member 321 includes a first side portion 3211 and a second side portion 3212 oppositely disposed along the third direction
  • the connecting arm 210 includes a second connecting portion 211 connected with the first side portion 3211 and a second connecting portion 211 from the second connecting portion 211 .
  • Two extending portions 212 extending toward the second side portion 3212 on opposite sides along the second direction. That is, the connecting arm 210 is U-shaped as a whole, and is connected by the connecting member 321 to suspend the vibrator assembly 300 in the receiving space 101 .
  • a gap is left between the extension portion 212 and the connecting member 321 to prevent the connecting member 321 from interfering with the expansion and contraction of the elastic member 200 during the vibration of the vibrator assembly 300 , thereby further improving the stability of vibration.
  • the elastic arm 230 includes a plurality of body parts 231 arranged in sequence along the second direction, a first bending part 232 for connecting the body parts 231 end to end, and a first bending part 232 for connecting the body parts 231 close to the extension part 212 away from One end of the first bent portion 232 is connected to the end of the extension portion 212 away from the second connecting portion 211 and the second bent portion 233 is used to connect the end of the body portion 231 close to the fixed arm 220 away from the first bent portion 232 to the fixed arm 220 is connected to the third bent portion 234 .
  • the vibration of the vibrator assembly 300 can change the included angles of the first bending portion 232, the second bending portion 233 and the third bending portion 234, while the After the first bending portion 232 , the second bending portion 233 and the third bending portion 234 are restored to their original states, they can provide restoring force of the vibrator assembly 300 , thereby improving the vibration performance of the vibrator assembly 300 .
  • the body portion 231 is provided with a through groove 2311 which penetrates through the body portion 231 along the second direction.
  • the amount of elastic deformation of the body portion 231 can be increased, and by changing the size and shape of the through groove 2311 and the shape of the body portion 231 , the amount of elastic deformation of the body portion 231 can be changed, so that the vibration of the vibrator assembly 300 can be adjusted.
  • the above-mentioned changes to the elastic deformation of the body portion 231 may be the same or different for different body portions 231.
  • the number of body portions 231 is two, and the shapes of the two body portions 231 are the same as The through holes 501 are all different in size.
  • the fixing arm 220 includes a third connecting portion 221 connected with the third bending portion 234 and a fixing portion 222 located on opposite ends of the third connecting portion 221 along the first direction, and the fixing portion 222 is connected with the housing 100 , So that the third connecting portion 221 is opposite to the housing 100 and arranged at intervals.
  • the fixing portion 222 is clamped to the casing 100 by the fixing member 700 .
  • the third connecting portion 221 and the housing 100 are arranged opposite to each other and spaced apart by the fixing portion 222 , which ensures that the third connecting portion 221 can have a certain amount of elastic deformation.
  • the elastic deformation amount of the third connection portion 221 can be adjusted to improve the vibration performance of the vibrator assembly 300 .

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

Abstract

The present application relates to the technical field of electromagnetic motion, and provides a vibration motor. According to the vibration motor, respectively providing two stator assemblies at the two sides of a vibrator assembly prevents the vibrator assembly from being arranged around the stator assembles, reduces the complexity of arranging and designing coils on the vibration motor, and can reduce the size of the vibration motor; moreover, the coils, a circuit board, and a first magnetic conduction sheet are sequentially stacked on a housing, and therefore, the present application is simple to assemble, and can improve the assembling efficiency and reduce the manufacturing cost.

Description

振动马达vibration motor 技术领域technical field
本申请涉及电磁运动技术领域，具体涉及一种振动马达。The present application relates to the technical field of electromagnetic motion, and in particular, to a vibration motor.
背景技术Background technique
现有双频振动马达，分别在两个振动方向上单独驱动，线圈大多数都是放置在振子所围空间的内部。The existing dual-frequency vibration motors are driven separately in two vibration directions, and most of the coils are placed inside the space surrounded by the vibrator.
技术问题technical problem
这样会增加在振动马达上布置和设计线圈的复杂性，使得整个双频振动马达结构复杂，并且由于振子环绕线圈设置造成现有双频振动马达的体型一般都比较大。This will increase the complexity of arranging and designing the coils on the vibration motor, making the structure of the entire dual-frequency vibration motor complex, and the size of the existing dual-frequency vibration motor is generally relatively large due to the arrangement of the vibrator around the coil.
技术解决方案technical solutions
本申请的目的在于提供一种振动马达，旨在解决现有振动马达中线圈位于振子所围空间的内部造成的线圈设计复杂且振动马达整体体型较大的问题。The purpose of the present application is to provide a vibration motor, which aims to solve the problems of complicated coil design and large overall size of the vibration motor caused by the coil being located inside the space enclosed by the vibrator in the existing vibration motor.
本申请的技术方案如下：The technical solution of this application is as follows:
一种振动马达，包括具有收容空间的壳体，通过弹性件悬置于所述收容空间内的振子组件以及沿第一方向相对设置且与所述壳体固定连接的两个定子组件，所述振子组件至少能够沿第二方向和第三方向往复振动，所述第一方向垂直所述第二方向和所述第三方向所在平面，所述弹性件能够为所述振子组件提供回复力，所述定子组件包括固设于壳体上的第一导磁片和通过线路板叠设于所述第一导磁片上的线圈，所述线路板用于向所述线圈供电，所述振子组件与所述线圈相对且间隔设置。A vibration motor includes a housing with an accommodation space, a vibrator assembly suspended in the accommodation space by an elastic member, and two stator assemblies oppositely arranged along a first direction and fixedly connected to the casing, the The vibrator assembly can vibrate back and forth at least along the second direction and the third direction, the first direction is perpendicular to the plane where the second direction and the third direction are located, and the elastic member can provide restoring force for the vibrator assembly, so The stator assembly includes a first magnetic conductive sheet fixed on the housing and a coil stacked on the first magnetic conductive sheet through a circuit board, the circuit board is used to supply power to the coil, and the vibrator assembly is connected to the coil. The coils are opposite and spaced apart.
在所述振动马达的一些实施例中，所述定子组件还包括铁芯，所述线圈环设于所述铁芯。In some embodiments of the vibration motor, the stator assembly further includes an iron core, and the coil is disposed around the iron core.
在所述振动马达的一些实施例中，所述线路板上设有通孔，所述铁芯经所述通孔与所述第一导磁片连接。In some embodiments of the vibration motor, a through hole is provided on the circuit board, and the iron core is connected to the first magnetic conductive sheet through the through hole.
在所述振动马达的一些实施例中，所述线路板包括叠设于所述第一导磁片上的固定段和用于将两个固定段连接的连接段，所述通孔形成于所述固定段上。In some embodiments of the vibration motor, the circuit board includes a fixing section stacked on the first magnetic conductive sheet and a connecting section for connecting the two fixing sections, and the through hole is formed in the on the fixed segment.
在所述振动马达的一些实施例中，所述振子组件包括两个磁钢和用于连接两个所述磁钢的骨架，各所述磁钢一一对应与各所述线圈相对且间隔设置。In some embodiments of the vibration motor, the vibrator assembly includes two magnetic steels and a skeleton for connecting the two magnetic steels, and each of the magnetic steels is in a one-to-one correspondence with each of the coils and is arranged at intervals. .
在所述振动马达的一些实施例中，所述磁钢沿所述第一方向充磁，且所述磁钢的充磁界面与所述第二方向和所述第三方向均呈非90°夹角。In some embodiments of the vibration motor, the magnetic steel is magnetized along the first direction, and the magnetization interface of the magnetic steel is not 90° from the second direction and the third direction. angle.
在所述振动马达的一些实施例中，所述振动马达还包括沿所述第二方向位于所述磁钢两侧且与所述磁钢间隔设置的挡片。In some embodiments of the vibration motor, the vibration motor further includes baffles located on both sides of the magnetic steel along the second direction and spaced from the magnetic steel.
在所述振动马达的一些实施例中，所述骨架包括连接件和设置在所述连接件沿所述第一方向相对两端上的夹持件，所述夹持件用于将所述磁钢夹持。In some embodiments of the vibration motor, the frame includes a connecting piece and clamping pieces disposed on opposite ends of the connecting piece along the first direction, the clamping pieces being used to hold the magnetic Steel clamps.
在所述振动马达的一些实施例中，所述夹持件包括固设于所述连接件的第一连接部以及多个自所述第一连接部的周向向远离所述连接件方向弯折延伸且将所述磁钢夹持的夹持部。In some embodiments of the vibration motor, the clamping member includes a first connecting portion fixed on the connecting member and a plurality of bendings from a circumferential direction of the first connecting portion in a direction away from the connecting member Folding and extending and clamping the magnetic steel.
在所述振动马达的一些实施例中，所述磁钢和所述第一连接部之间还设置有第二导磁片，所述夹持部能够通过所述磁钢将所述第二导磁片抵设于所述第一连接部。In some embodiments of the vibration motor, a second magnetic conductive sheet is further disposed between the magnetic steel and the first connecting portion, and the clamping portion can connect the second magnetic conductive sheet through the magnetic steel. The magnetic sheet is abutted against the first connecting portion.
在所述振动马达的一些实施例中，所述弹性件包括与所述连接件连接的连接臂、位于所述连接臂两侧且与所述壳体连接的固定臂和将所述连接臂与所述固定臂连接的弹力臂。In some embodiments of the vibration motor, the elastic member includes a connecting arm connected with the connecting member, a fixing arm located on both sides of the connecting arm and connected with the housing, and connecting the connecting arm with the housing. the elastic arm connected to the fixed arm.
在所述振动马达的一些实施例中，所述连接件包括沿所述第三方向相对设置的第一侧部和第二侧部，所述连接臂包括与所述第一侧部连接的第二连接部和自所述第二连接部沿所述第二方向相对的两侧向所述第二侧部方向延伸的两个延伸部，所述第二方向垂直于所述第三方向。In some embodiments of the vibration motor, the connecting member includes a first side portion and a second side portion oppositely disposed along the third direction, and the connecting arm includes a first side portion connected to the first side portion. Two connecting portions and two extending portions extending from opposite sides of the second connecting portion along the second direction toward the second side portion, the second direction being perpendicular to the third direction.
在所述振动马达的一些实施例中，所述弹力臂包括多个沿所述第二方向依次设置的本体部、用于将各所述本体部首尾相连的第一弯折部、用于将靠近所述延伸部的所述本体部的远离所述第一弯折部一端与所述延伸部远离所述第二连接部一端连接的第二弯折部以及用于将靠近所述固定臂的所述本体部的远离所述第一弯折部一端与所述固定臂连接的第三弯折部。In some embodiments of the vibration motor, the elastic arm includes a plurality of body parts arranged in sequence along the second direction, a first bending part for connecting the body parts end to end, and a first bending part for connecting the body parts end to end; The end of the body part close to the extension part that is far away from the first bending part is connected with the second bending part of the extension part that is far away from the second connecting part; One end of the body part away from the first bending part is connected with the third bending part of the fixing arm.
在所述振动马达的一些实施例中，所述本体部上设有沿所述第二方向贯穿所述本体部的通槽。In some embodiments of the vibration motor, the body portion is provided with a through groove extending through the body portion along the second direction.
在所述振动马达的一些实施例中，所述固定臂包括与所述第三弯折部连接的第三连接部以及位于所述第三连接部沿所述第一方向相对两端上的固定部，所述固定部与所述壳体连接，以使所述第三连接部与所述壳体相对且间隔设置。In some embodiments of the vibration motor, the fixing arm includes a third connecting portion connected with the third bending portion, and fixing portions on opposite ends of the third connecting portion along the first direction. part, the fixing part is connected with the casing, so that the third connecting part is opposite to the casing and arranged at intervals.
有益效果beneficial effect
本申请的有益效果在于：The beneficial effects of this application are:
上述方案的振动马达，采用将两个定子组件分别设置在振子组件的两侧，避免振子组件围设定子组件设置，降低了在振动马达上布置和设计线圈的复杂性并且能够缩小振动马达的体型；同时，线圈、线路板和第一导磁片依次叠设设置在壳体上，装配简单，能够提升装配效率，降低制造成本。In the vibration motor of the above solution, the two stator assemblies are respectively arranged on both sides of the vibrator assembly, so as to avoid the vibrator assembly being arranged around the sub-assemblies, reducing the complexity of arranging and designing coils on the vibration motor and reducing the size of the vibration motor. At the same time, the coil, the circuit board and the first magnetic conductive sheet are sequentially stacked and arranged on the casing, the assembly is simple, the assembly efficiency can be improved, and the manufacturing cost can be reduced.
附图说明Description of drawings
图1为本申请的振动马达的***结构示意图；Fig. 1 is the exploded structure schematic diagram of the vibration motor of the application;
图2为本申请的振动马达的轴视图；Fig. 2 is the axial view of the vibration motor of the application;
图3为图2所示振动马达的俯视图；Fig. 3 is the top view of the vibration motor shown in Fig. 2;
图4为图2中A-A向剖视图；Fig. 4 is A-A sectional view in Fig. 2;
图5为图2中B-B向剖视图；Fig. 5 is B-B in Fig. 2 sectional view;
图6为图1所示振动马达中弹性件的轴视图；Fig. 6 is the axial view of the elastic member in the vibration motor shown in Fig. 1;
图7为图6所示弹性件的主视图；Fig. 7 is the front view of the elastic member shown in Fig. 6;
图8为图1所示振动马达中磁钢的主视图。FIG. 8 is a front view of the magnetic steel in the vibration motor shown in FIG. 1 .
本发明的实施方式Embodiments of the present invention
下面结合附图和实施方式对本申请作进一步说明。The present application will be further described below with reference to the accompanying drawings and embodiments.
请一并结合图1至图8，现对本申请实施例提供的振动马达10进行说明。该振动马达10，包括壳体100、弹性件200、振子组件300、两个定子组件400和线路板500。该壳体100具有收容空间101。具体地，如图1至图5所示，壳体100包括相对设置的上盖110和下盖120。上盖110包括第一本体和位于第一本体沿第一方向两端的第一侧壁。下盖120包括第二本体和位于第二本体沿第二方向两端的第二侧壁。第一侧壁自第一本体弯折延伸与第二本体连接，第二侧壁自第二本体弯折延伸与第一本体连接，上盖110和下盖120围设形成收容空间101。上盖110与下盖120可通过粘结或超声波焊接等方式连为一体。Please refer to FIG. 1 to FIG. 8 together to describe the vibration motor 10 provided by the embodiment of the present application. The vibration motor 10 includes a housing 100 , an elastic member 200 , a vibrator assembly 300 , two stator assemblies 400 and a circuit board 500 . The casing 100 has a receiving space 101 . Specifically, as shown in FIG. 1 to FIG. 5 , the housing 100 includes an upper cover 110 and a lower cover 120 which are disposed opposite to each other. The upper cover 110 includes a first body and first side walls located at both ends of the first body along the first direction. The lower cover 120 includes a second body and second side walls located at both ends of the second body along the second direction. The first side wall is bent and extended from the first body to be connected to the second body, the second side wall is bent and extended from the second body to be connected to the first body, and the upper cover 110 and the lower cover 120 are surrounded to form a receiving space 101 . The upper cover 110 and the lower cover 120 may be integrated by bonding or ultrasonic welding.
请继续参阅图1、图4和图5，振子组件300通过弹性件200悬置于收容空间101内，两个定子组件400沿第一方向相对设置且与壳体100固定连接。振子组件300至少能够沿第二方向和第三方向往复振动，第一方向垂直第二方向和第三方向所在平面，弹性件200能够为振子组件300提供回复力，定子组件400包括固设于壳体100上的第一导磁片410和通过线路板500叠设于第一导磁片410上的线圈420，振子组件300与线圈420相对且间隔设置。如此将两个定子组件400分别设置在振子组件300的两侧，避免振子组件300围设定子组件400设置，降低了在振动马达10上布置和设计线圈420的复杂性并且能够缩小振动马达10的体型；同时，线圈420、线路板500和第一导磁片410依次叠设设置在壳体100上，装配简单，能够提升装配效率，降低制造成本。本实施例中，第一方向平行于图4中箭头X所指方向，第二方向平行于图5和图8中箭头Y所指方向，第三方向平行于图4、图5和图8中箭头Z所指方向。Please continue to refer to FIGS. 1 , 4 and 5 , the vibrator assembly 300 is suspended in the receiving space 101 by the elastic member 200 , and the two stator assemblies 400 are oppositely disposed along the first direction and are fixedly connected to the housing 100 . The vibrator assembly 300 can vibrate back and forth at least along the second direction and the third direction, the first direction is perpendicular to the plane of the second direction and the third direction, the elastic member 200 can provide restoring force for the vibrator assembly 300, and the stator assembly 400 comprises a The first magnetic conductive sheet 410 on the body 100 and the coil 420 stacked on the first magnetic conductive sheet 410 through the circuit board 500 are arranged. In this way, the two stator assemblies 400 are respectively arranged on both sides of the vibrator assembly 300, so that the vibrator assembly 300 is prevented from being arranged around the subassemblies 400, the complexity of arranging and designing the coils 420 on the vibration motor 10 is reduced, and the vibration motor 10 can be reduced in size. At the same time, the coil 420, the circuit board 500 and the first magnetic conductive sheet 410 are stacked and arranged on the housing 100 in sequence, and the assembly is simple, which can improve the assembly efficiency and reduce the manufacturing cost. In this embodiment, the first direction is parallel to the direction indicated by the arrow X in FIG. 4 , the second direction is parallel to the direction indicated by the arrow Y in FIGS. 5 and 8 , and the third direction is parallel to the direction in FIGS. 4 , 5 and 8 The direction indicated by arrow Z.
请一并结合图1和图4，在一个实施例中，定子组件400还包括铁芯430，线圈420环设于铁芯430。该铁芯430能够在线圈420通电后被极化而具有极性，从而提高了定子组件400对振子组件300的吸引力，提高振动马达10的振动强度。本实施例中，铁芯430呈圆角长方体状，线圈420呈跑道型环设于铁芯430。可以理解为在其他实施例中，铁芯430还可以为圆柱形、方形、菱形等其它形状。Please refer to FIG. 1 and FIG. 4 together. In one embodiment, the stator assembly 400 further includes an iron core 430 , and the coil 420 is arranged around the iron core 430 . The iron core 430 can be polarized to have a polarity after the coil 420 is energized, thereby improving the attractive force of the stator assembly 400 to the vibrator assembly 300 and improving the vibration intensity of the vibration motor 10 . In this embodiment, the iron core 430 is in the shape of a rounded cuboid, and the coil 420 is arranged on the iron core 430 in the shape of a racetrack ring. It can be understood that in other embodiments, the iron core 430 may also have other shapes such as cylindrical, square, and rhombus.
在一个实施例中，线路板500上设有通孔501，铁芯430经通孔501与第一导磁片410连接。第一导磁片410用于在线圈420远离振子组件300一侧防止磁外漏，铁芯430可通过第一导磁片410与壳体100连接。同时，铁芯430还能够作为定位结构方便线路板500和线圈420的安装。In one embodiment, the circuit board 500 is provided with a through hole 501 , and the iron core 430 is connected to the first magnetic conductive sheet 410 through the through hole 501 . The first magnetic conductive sheet 410 is used to prevent magnetic leakage on the side of the coil 420 away from the vibrator assembly 300 , and the iron core 430 can be connected to the housing 100 through the first magnetic conductive sheet 410 . Meanwhile, the iron core 430 can also serve as a positioning structure to facilitate the installation of the circuit board 500 and the coil 420 .
在一个实施例中，线路板500包括叠设于第一导磁片410上的固定段510和用于将两个固定段510连接的连接段520，通孔501形成于固定段510上。线圈420通过固定段510叠设于第一导磁片410。本实施例中，线路板500为FPC。两个固定段510沿第一方向相对设置且自连接段520沿第三方向延伸，通过通孔501套接在铁芯430上并插设于收容空间101，以使两个线圈420通过线路板500串联。In one embodiment, the circuit board 500 includes a fixing segment 510 stacked on the first magnetic conductive sheet 410 and a connecting segment 520 for connecting the two fixing segments 510 . The through hole 501 is formed on the fixing segment 510 . The coil 420 is stacked on the first magnetic conductive sheet 410 through the fixing section 510 . In this embodiment, the circuit board 500 is an FPC. The two fixing sections 510 are disposed opposite to each other along the first direction and extend from the connecting section 520 along the third direction, are sleeved on the iron core 430 through the through hole 501 and inserted into the receiving space 101, so that the two coils 420 pass through the circuit board 500 in series.
请继续参阅图1、图4、图5和图8，在一个实施例中，振子组件300包括两个磁钢310和用于连接两个磁钢310的骨架320，各磁钢310一一对应与各线圈420相对且间隔设置。两个磁钢310通过骨架320连为一体，各磁钢310与对应的线圈420和铁芯430相互作用提供振子组件300的振动驱动力。另外，可通过增加骨架320的质量，提高振子组件300的振动效果。如图8所示，进一步地，磁钢310沿第一方向充磁，即沿磁钢310的厚度方向充磁。且磁钢310的充磁界面a与第二方向和第三方向均呈非90°夹角。第二方向垂直于第三方向，振子组件300具有沿第二方向的第一振动模态和沿第三方向的第二振动模态。线圈420通电后，对磁钢310形成垂直于充磁界面a的振动驱动力F，当振动驱动力F的驱动频率与第一振动模态或者第二振动模态相近时，相应的第一振动模态或者第二振动模态被激发，引起振子组件300沿着第二方向或者第三方向振动，从而驱动振子组件300在收容空间101内沿振动方向往复振动。Please continue to refer to FIG. 1 , FIG. 4 , FIG. 5 and FIG. 8 , in one embodiment, the vibrator assembly 300 includes two magnetic steels 310 and a skeleton 320 for connecting the two magnetic steels 310 , and the magnetic steels 310 are in one-to-one correspondence The coils 420 are opposed to each other and arranged at intervals. The two magnetic steels 310 are connected together by the skeleton 320 , and each magnetic steel 310 interacts with the corresponding coil 420 and the iron core 430 to provide the vibration driving force of the vibrator assembly 300 . In addition, the vibration effect of the vibrator assembly 300 can be improved by increasing the mass of the frame 320 . As shown in FIG. 8 , further, the magnet steel 310 is magnetized along the first direction, that is, magnetized along the thickness direction of the magnet steel 310 . Moreover, the magnetization interface a of the magnetic steel 310 forms an included angle other than 90° with the second direction and the third direction. The second direction is perpendicular to the third direction, and the vibrator assembly 300 has a first vibration mode along the second direction and a second vibration mode along the third direction. After the coil 420 is energized, a vibration driving force F perpendicular to the magnetization interface a is formed on the magnetic steel 310. When the driving frequency of the vibration driving force F is close to the first vibration mode or the second vibration mode, the corresponding first vibration The mode or the second vibration mode is excited, causing the vibrator assembly 300 to vibrate in the second direction or the third direction, thereby driving the vibrator assembly 300 to vibrate back and forth in the vibration direction in the receiving space 101 .
如图1和图5所示，在一个实施例中，振动马达10还包括沿第二方向位于磁钢310两侧且与磁钢310间隔设置的挡片600。该挡片600能够缓冲振子组件300对壳体100的冲击力。As shown in FIG. 1 and FIG. 5 , in one embodiment, the vibration motor 10 further includes baffles 600 located on both sides of the magnetic steel 310 along the second direction and spaced from the magnetic steel 310 . The blocking piece 600 can buffer the impact force of the vibrator assembly 300 on the casing 100 .
请一并结合图1、图4和图5，在一个实施例中，骨架320包括连接件321和设置在连接件321沿第一方向相对两端上的夹持件322，夹持件322用于将磁钢310夹持。通过设置夹持件322能够更好的与磁钢310连接，避免振子组件300在振动过程中磁钢310发生相对振子组件300整体的位移或脱落，造成振动马达10性能降低，甚至造成振动马达10的无法使用。Please refer to FIG. 1 , FIG. 4 and FIG. 5 together. In one embodiment, the skeleton 320 includes a connecting piece 321 and clamping pieces 322 disposed on opposite ends of the connecting piece 321 along the first direction. To clamp the magnet 310. The clamping member 322 can be better connected to the magnetic steel 310 to prevent the magnetic steel 310 from being displaced or falling off relative to the vibrator assembly 300 during the vibration process of the vibrator assembly 300 , resulting in reduced performance of the vibration motor 10 , and even causing the vibration motor 10 . cannot be used.
进一步地，夹持件322包括固设于连接件321的第一连接部3221以及多个自第一连接部3221的周向向远离连接件321方向弯折延伸且将磁钢310夹持的夹持部3222。如此能够进一步提高磁钢310的连接稳定性。本实施例中，磁钢310的形状为长方体状，为了进一步提高对磁钢310的夹持，夹持部3222的数量设置为四个，各夹持部3222一一对应磁钢310的各侧面将其夹持。可以理解为在其他实施例中，可针对磁钢310的具体形状设置夹持部3222的数量，以更好的将磁钢310夹持。甚至对于一些形状，例如，呈圆柱状或椭圆柱状的磁钢310，可通过在夹持部3222上设置与磁钢310外表面贴合的弧面，以更好的将磁钢310的夹持。Further, the clamping member 322 includes a first connecting portion 3221 fixed on the connecting member 321 and a plurality of clips that are bent and extended away from the connecting member 321 from the circumferential direction of the first connecting portion 3221 to clamp the magnetic steel 310 Holder 3222. In this way, the connection stability of the magnetic steel 310 can be further improved. In this embodiment, the shape of the magnetic steel 310 is a rectangular parallelepiped. In order to further improve the clamping of the magnetic steel 310, the number of the clamping portions 3222 is set to four, and each clamping portion 3222 corresponds to each side surface of the magnetic steel 310 one-to-one. Clamp it. It can be understood that in other embodiments, the number of clamping portions 3222 may be set according to the specific shape of the magnetic steel 310 to better clamp the magnetic steel 310 . Even for some shapes, for example, the magnetic steel 310 in the shape of a cylinder or an elliptical column, an arc surface that fits with the outer surface of the magnetic steel 310 can be provided on the clamping portion 3222 to better clamp the magnetic steel 310 .
如图1和图4所示，进一步地，磁钢310和第一连接部3221之间还设置有第二导磁片330，夹持部3222能够通过磁钢310将第二导磁片330抵设于第一连接部3221。如此能够将磁钢310和第二导磁片330更好的夹持，防止振动过程中相对移动和脱落。同时，第二导磁片330用于在磁钢310靠近第一连接部3221一侧防止磁外漏。As shown in FIG. 1 and FIG. 4 , further, a second magnetic conductive sheet 330 is further arranged between the magnetic steel 310 and the first connecting portion 3221 , and the clamping portion 3222 can push the second magnetic conductive sheet 330 against the magnetic steel 310 through the magnetic steel 310 . Set on the first connecting portion 3221 . In this way, the magnetic steel 310 and the second magnetic conductive sheet 330 can be better clamped to prevent relative movement and falling off during the vibration process. At the same time, the second magnetic conductive sheet 330 is used to prevent magnetic leakage on the side of the magnetic steel 310 close to the first connecting portion 3221 .
请继续参阅图1、图4、图5、图6和图7，在上述实施例的基础上，弹性件200包括与连接件321连接的连接臂210、位于连接臂210两侧且与壳体100连接的固定臂220和将连接臂210与固定臂220连接的弹力臂230。本实施例中，固定臂220、弹力臂230和连接臂210沿第二方向设置，用于提供振子组件300在第二方向和第二方向上的回复力。可以理解为在其他实施例中，弹性件200还可以为其他形状，仅保证能够提供振子组件300在第二方向和第三方向上的回复力即可。Please continue to refer to FIG. 1 , FIG. 4 , FIG. 5 , FIG. 6 and FIG. 7 , on the basis of the above embodiment, the elastic member 200 includes a connecting arm 210 connected with the connecting member 321 , and is located on both sides of the connecting arm 210 and is connected to the housing. The fixed arm 220 connected by 100 and the elastic arm 230 connecting the connecting arm 210 with the fixed arm 220. In this embodiment, the fixing arm 220 , the elastic arm 230 and the connecting arm 210 are disposed along the second direction, and are used to provide the vibrator assembly 300 with restoring force in the second direction and the second direction. It can be understood that in other embodiments, the elastic member 200 can also be in other shapes, as long as it can provide the restoring force of the vibrator assembly 300 in the second direction and the third direction.
具体地，连接件321包括沿第三方向相对设置的第一侧部3211和第二侧部3212，连接臂210包括与第一侧部3211连接的第二连接部211和自第二连接部211沿第二方向相对的两侧向第二侧部3212方向延伸的两个延伸部212。即连接臂210整体呈U型，通过连接件321连接以将振子组件300悬置于收容空间101内。本实施例中，延伸部212与连接件321之间留有间隙，以防止振子组件300振动过程中连接件321对弹性件200的伸缩进行干涉，进一步提高振动的稳定性。Specifically, the connecting member 321 includes a first side portion 3211 and a second side portion 3212 oppositely disposed along the third direction, and the connecting arm 210 includes a second connecting portion 211 connected with the first side portion 3211 and a second connecting portion 211 from the second connecting portion 211 . Two extending portions 212 extending toward the second side portion 3212 on opposite sides along the second direction. That is, the connecting arm 210 is U-shaped as a whole, and is connected by the connecting member 321 to suspend the vibrator assembly 300 in the receiving space 101 . In this embodiment, a gap is left between the extension portion 212 and the connecting member 321 to prevent the connecting member 321 from interfering with the expansion and contraction of the elastic member 200 during the vibration of the vibrator assembly 300 , thereby further improving the stability of vibration.
进一步地，弹力臂230包括多个沿第二方向依次设置的本体部231、用于将各本体部231首尾相连的第一弯折部232、用于将靠近延伸部212的本体部231的远离第一弯折部232一端与延伸部212远离第二连接部211一端连接的第二弯折部233以及用于将靠近固定臂220的本体部231的远离第一弯折部232一端与固定臂220连接的第三弯折部234。如此使得固定臂220与连接臂210之间具有较大的变形区域，振子组件300振动能够改变第一弯折部232、第二弯折部233和第三弯折部234的夹角，而第一弯折部232、第二弯折部233和第三弯折部234恢复原状后能够提供振子组件300回复力，从而提高振子组件300的振动性能。本实施例中，本体部231上设有沿第二方向贯穿本体部231的通槽2311。如此能够提高本体部231的弹性变形量，而且通过改变通槽2311的尺寸和形状以及本体部231的形状能够改变本体部231的弹性变形量，从而能够对振子组件300的振动进行调整。另外，上述对本体部231弹性变形量的改变形式在不同本体部231上可以是一致的也可以不同，例如本实施例中，本体部231的数量为两个，两个本体部231的形状和通孔501尺寸均不同。Further, the elastic arm 230 includes a plurality of body parts 231 arranged in sequence along the second direction, a first bending part 232 for connecting the body parts 231 end to end, and a first bending part 232 for connecting the body parts 231 close to the extension part 212 away from One end of the first bent portion 232 is connected to the end of the extension portion 212 away from the second connecting portion 211 and the second bent portion 233 is used to connect the end of the body portion 231 close to the fixed arm 220 away from the first bent portion 232 to the fixed arm 220 is connected to the third bent portion 234 . In this way, there is a large deformation area between the fixed arm 220 and the connecting arm 210, and the vibration of the vibrator assembly 300 can change the included angles of the first bending portion 232, the second bending portion 233 and the third bending portion 234, while the After the first bending portion 232 , the second bending portion 233 and the third bending portion 234 are restored to their original states, they can provide restoring force of the vibrator assembly 300 , thereby improving the vibration performance of the vibrator assembly 300 . In this embodiment, the body portion 231 is provided with a through groove 2311 which penetrates through the body portion 231 along the second direction. In this way, the amount of elastic deformation of the body portion 231 can be increased, and by changing the size and shape of the through groove 2311 and the shape of the body portion 231 , the amount of elastic deformation of the body portion 231 can be changed, so that the vibration of the vibrator assembly 300 can be adjusted. In addition, the above-mentioned changes to the elastic deformation of the body portion 231 may be the same or different for different body portions 231. For example, in this embodiment, the number of body portions 231 is two, and the shapes of the two body portions 231 are the same as The through holes 501 are all different in size.
进一步地，固定臂220包括与第三弯折部234连接的第三连接部221以及位于第三连接部221沿第一方向相对两端上的固定部222，固定部222与壳体100连接，以使第三连接部221与壳体100相对且间隔设置。本实施例中，固定部222通过固定件700夹设于壳体100。通过固定部222将将第三连接部221与壳体100相对且间隔设置，保证了第三连接部221能够具有一定的弹性变形量，通过调整第三连接部221与壳体100之间的间距，能够调整第三连接部221的弹性变形量，以提高振子组件300的振动性能。Further, the fixing arm 220 includes a third connecting portion 221 connected with the third bending portion 234 and a fixing portion 222 located on opposite ends of the third connecting portion 221 along the first direction, and the fixing portion 222 is connected with the housing 100 , So that the third connecting portion 221 is opposite to the housing 100 and arranged at intervals. In this embodiment, the fixing portion 222 is clamped to the casing 100 by the fixing member 700 . The third connecting portion 221 and the housing 100 are arranged opposite to each other and spaced apart by the fixing portion 222 , which ensures that the third connecting portion 221 can have a certain amount of elastic deformation. By adjusting the distance between the third connecting portion 221 and the housing 100 , the elastic deformation amount of the third connection portion 221 can be adjusted to improve the vibration performance of the vibrator assembly 300 .
以上所述的仅是本申请的实施方式，在此应当指出，对于本领域的普通技术人员来说，在不脱离本申请创造构思的前提下，还可以做出改进，但这些均属于本申请的保护范围。The above are only the embodiments of the present application. It should be pointed out that for those of ordinary skill in the art, improvements can be made without departing from the creative concept of the present application, but these belong to the present application. scope of protection.

Claims (15)

  1. 一种振动马达，其特征在于，包括具有收容空间的壳体，通过弹性件悬置于所述收容空间内的振子组件以及沿第一方向相对设置且与所述壳体固定连接的两个定子组件，所述振子组件至少能够沿第二方向和第三方向往复振动，所述第一方向垂直所述第二方向和所述第三方向所在平面，所述弹性件能够为所述振子组件提供回复力，所述定子组件包括固设于壳体上的第一导磁片和通过线路板叠设于所述第一导磁片上的线圈，所述线路板用于向所述线圈供电，所述振子组件与所述线圈相对且间隔设置。A vibration motor is characterized in that it includes a housing with a housing space, a vibrator assembly suspended in the housing space by an elastic member, and two stators that are oppositely arranged along a first direction and are fixedly connected to the housing. The vibrator assembly can vibrate back and forth at least along the second direction and the third direction, the first direction is perpendicular to the plane where the second direction and the third direction are located, and the elastic member can provide the vibrator assembly restoring force, the stator assembly includes a first magnetic conductive sheet fixed on the housing and a coil stacked on the first magnetic conductive sheet through a circuit board, the circuit board is used to supply power to the coil, so The vibrator assembly is opposite to and spaced apart from the coil.
  2. 根据权利要求1所述的振动马达，其特征在于：所述定子组件还包括铁芯，所述线圈环设于所述铁芯。The vibration motor according to claim 1, wherein the stator assembly further comprises an iron core, and the coil is arranged around the iron core.
  3. 根据权利要求2所述的振动马达，其特征在于：所述线路板上设有通孔，所述铁芯经所述通孔与所述第一导磁片连接。The vibration motor of claim 2, wherein the circuit board is provided with a through hole, and the iron core is connected to the first magnetic conductive sheet through the through hole.
  4. 根据权利要求3所述的振动马达，其特征在于：所述线路板包括叠设于所述第一导磁片上的固定段和用于将两个固定段连接的连接段，所述通孔形成于所述固定段上。The vibration motor according to claim 3, wherein the circuit board comprises a fixed section stacked on the first magnetic conductive sheet and a connecting section for connecting the two fixed sections, the through hole is formed on the fixed section.
  5. 根据权利要求4所述的振动马达，其特征在于：所述振子组件包括两个磁钢和用于连接两个所述磁钢的骨架，各所述磁钢一一对应与各所述线圈相对且间隔设置。The vibration motor according to claim 4, wherein the vibrator assembly comprises two magnetic steels and a skeleton for connecting the two magnetic steels, and each of the magnetic steels is opposite to each of the coils in a one-to-one correspondence. and interval setting.
  6. 根据权利要求5所述的振动马达，其特征在于：所述磁钢沿所述第一方向充磁，且所述磁钢的充磁界面与所述第二方向和所述第三方向均呈非90°夹角。The vibration motor according to claim 5, wherein the magnetic steel is magnetized along the first direction, and the magnetization interface of the magnetic steel is in the direction of the second direction and the third direction. Angles other than 90°.
  7. 根据权利要求5所述的振动马达，其特征在于：所述振动马达还包括沿所述第二方向位于所述磁钢两侧且与所述磁钢间隔设置的挡片。The vibration motor according to claim 5, wherein the vibration motor further comprises baffles located on both sides of the magnetic steel along the second direction and spaced from the magnetic steel.
  8. 根据权利要求5所述的振动马达，其特征在于：所述骨架包括连接件和设置在所述连接件沿所述第一方向相对两端上的夹持件，所述夹持件用于将所述磁钢夹持。The vibration motor according to claim 5, wherein the frame comprises a connecting piece and clamping pieces disposed on opposite ends of the connecting piece along the first direction, and the clamping pieces are used to The magnet is clamped.
  9. 根据权利要求8所述的振动马达，其特征在于：所述夹持件包括固设于所述连接件的第一连接部以及多个自所述第一连接部的周向向远离所述连接件方向弯折延伸且将所述磁钢夹持的夹持部。The vibration motor according to claim 8, wherein the clamping member comprises a first connecting portion fixed on the connecting member and a plurality of connecting portions away from the first connecting portion in the circumferential direction of the connecting portion The clamping part is bent and extended in the direction of the piece and clamps the magnetic steel.
  10. 根据权利要求9所述的振动马达，其特征在于：所述磁钢和所述第一连接部之间还设置有第二导磁片，所述夹持部能够通过所述磁钢将所述第二导磁片抵设于所述第一连接部。The vibration motor according to claim 9, wherein a second magnetic conductive sheet is further arranged between the magnetic steel and the first connecting portion, and the clamping portion can connect the magnetic steel to the magnetic steel. The second magnetic conductive sheet is abutted against the first connecting portion.
  11. 根据权利要求8所述的振动马达，其特征在于：所述弹性件包括与所述连接件连接的连接臂、位于所述连接臂两侧且与所述壳体连接的固定臂和将所述连接臂与所述固定臂连接的弹力臂。The vibration motor according to claim 8, wherein the elastic member comprises a connecting arm connected with the connecting member, a fixing arm located on both sides of the connecting arm and connected with the housing, and a fixing arm connecting the The connecting arm is connected with the elastic arm of the fixed arm.
  12. 根据权利要求11所述的振动马达，其特征在于：所述连接件包括沿所述第三方向相对设置的第一侧部和第二侧部，所述连接臂包括与所述第一侧部连接的第二连接部和自所述第二连接部沿所述第二方向相对的两侧向所述第二侧部方向延伸的两个延伸部，所述第二方向垂直于所述第三方向。The vibration motor according to claim 11, wherein the connecting member includes a first side portion and a second side portion opposite to each other along the third direction, and the connecting arm includes a first side portion and a second side portion opposite to the first side portion. A connected second connecting portion and two extending portions extending from opposite sides of the second connecting portion toward the second side portion along the second direction, the second direction being perpendicular to the third direction.
  13. 根据权利要求12所述的振动马达，其特征在于：所述弹力臂包括多个沿所述第二方向依次设置的本体部、用于将各所述本体部首尾相连的第一弯折部、用于将靠近所述延伸部的所述本体部的远离所述第一弯折部一端与所述延伸部远离所述第二连接部一端连接的第二弯折部以及用于将靠近所述固定臂的所述本体部的远离所述第一弯折部一端与所述固定臂连接的第三弯折部。The vibration motor according to claim 12, wherein the elastic arm comprises a plurality of body parts arranged in sequence along the second direction, a first bending part for connecting the body parts end to end, A second bent portion for connecting an end of the body portion close to the extension portion away from the first bent portion with an end of the extension portion away from the second connecting portion and a second bent portion for connecting an end close to the extension portion One end of the body portion of the fixed arm away from the first bent portion is connected to a third bent portion of the fixed arm.
  14. 根据权利要求13所述的振动马达，其特征在于：所述本体部上设有沿所述第二方向贯穿所述本体部的通槽。The vibration motor of claim 13 , wherein the body portion is provided with a through groove penetrating the body portion along the second direction.
  15. 根据权利要求13所述的振动马达，其特征在于：所述固定臂包括与所述第三弯折部连接的第三连接部以及位于所述第三连接部沿所述第一方向相对两端上的固定部，所述固定部与所述壳体连接，以使所述第三连接部与所述壳体相对且间隔设置。The vibration motor of claim 13, wherein the fixed arm comprises a third connecting portion connected to the third bending portion and two opposite ends of the third connecting portion along the first direction. The fixing part is connected with the casing, so that the third connecting part is opposite to the casing and arranged at intervals.
PCT/CN2021/071358 2020-12-22 2021-01-13 Vibration motor WO2022134238A1 (en)

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CN113872410B (en) * 2021-10-18 2023-04-18 浙江省东阳市东磁诚基电子有限公司 Motor with wave-shaped elastic sheet structure and implementation method thereof

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN207354036U (en) * 2017-09-30 2018-05-11 重庆市灵龙电子有限公司 two-stage linear vibration motor can mover assembly
CN108855847A (en) * 2018-07-19 2018-11-23 池州市弘港科技电子有限公司 A kind of double frequency bi-directional mini linear vibrator
JP2019025390A (en) * 2017-07-26 2019-02-21 アルプス電気株式会社 Vibration generation device
CN110266171A (en) * 2019-05-24 2019-09-20 瑞声科技(新加坡)有限公司 Vibrating motor
CN110337778A (en) * 2017-03-02 2019-10-15 阿尔卑斯阿尔派株式会社 Vibration generating apparatus and electronic equipment
CN111404346A (en) * 2020-04-16 2020-07-10 浙江省东阳市东磁诚基电子有限公司 Moving-magnet type multidirectional vibration linear motor structure and implementation method thereof
JP2020157171A (en) * 2017-07-27 2020-10-01 アルプスアルパイン株式会社 Vibration generator

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110337778A (en) * 2017-03-02 2019-10-15 阿尔卑斯阿尔派株式会社 Vibration generating apparatus and electronic equipment
JP2019025390A (en) * 2017-07-26 2019-02-21 アルプス電気株式会社 Vibration generation device
JP2020157171A (en) * 2017-07-27 2020-10-01 アルプスアルパイン株式会社 Vibration generator
CN207354036U (en) * 2017-09-30 2018-05-11 重庆市灵龙电子有限公司 two-stage linear vibration motor can mover assembly
CN108855847A (en) * 2018-07-19 2018-11-23 池州市弘港科技电子有限公司 A kind of double frequency bi-directional mini linear vibrator
CN110266171A (en) * 2019-05-24 2019-09-20 瑞声科技(新加坡)有限公司 Vibrating motor
CN111404346A (en) * 2020-04-16 2020-07-10 浙江省东阳市东磁诚基电子有限公司 Moving-magnet type multidirectional vibration linear motor structure and implementation method thereof

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