WO2023020450A1 - Moteur à vibration linéaire - Google Patents

Moteur à vibration linéaire Download PDF

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Publication number
WO2023020450A1
WO2023020450A1 PCT/CN2022/112626 CN2022112626W WO2023020450A1 WO 2023020450 A1 WO2023020450 A1 WO 2023020450A1 CN 2022112626 W CN2022112626 W CN 2022112626W WO 2023020450 A1 WO2023020450 A1 WO 2023020450A1
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WO
WIPO (PCT)
Prior art keywords
magnetic
block
vibration motor
mass block
linear vibration
Prior art date
Application number
PCT/CN2022/112626
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English (en)
Chinese (zh)
Inventor
史德璋
张雨晴
高文花
Original Assignee
歌尔股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 歌尔股份有限公司 filed Critical 歌尔股份有限公司
Publication of WO2023020450A1 publication Critical patent/WO2023020450A1/fr

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

Definitions

  • the utility model relates to the technical field of linear vibration motors, in particular to a linear vibration motor.
  • the main purpose of the utility model is to provide a linear vibration motor, aiming to improve the stability of the vibrator assembly of the linear vibration motor during the vibration process, so as to ensure the reliability and service life of the linear vibration motor.
  • the linear vibration motor proposed by the utility model includes:
  • the casing has an accommodating cavity
  • a stator assembly includes an iron core and a coil wound around the iron core, the coil and the iron core are accommodated in the accommodation cavity and fixed to the housing;
  • a vibrator assembly the vibrator assembly is suspended in the accommodation cavity through an elastic member, the vibrator assembly is provided with a magnetic member, the magnetic member is accommodated in the accommodation cavity, and is arranged opposite to the coil, so as to Driven by the coil, the vibrator assembly is driven to vibrate;
  • a magnetically permeable block the magnetically permeable block is accommodated in the accommodating cavity, the magnetically permeable block is used for the magnetic cooperation of the magnetic parts, and the magnetically permeable block and the iron core are relatively arranged on the vibrator assembly sides.
  • the linear vibration motor further includes a support frame, which is detachably connected to the housing and located on the side of the magnetic member facing away from the iron core.
  • the magnetic block is connected with the supporting frame.
  • the side of the support frame away from the magnetic part is recessed to form a limiting groove, and the magnetic conductive block is embedded and fixed in the limiting groove.
  • slots are provided on opposite sides of the housing, the support frame includes a limiting portion and two mounting portions, and the limiting portion is formed on a side away from the magnetic member.
  • the limit slot There is the limit slot, the two installation parts are connected to the opposite sides of the limit part, and one of the installation parts is clamped in one of the card slots, so that the limit part is suspended on the The side of the magnetic part facing away from the iron core.
  • the vibrator assembly further includes a mass block and two damping blocks, the mass block is arranged in the accommodating cavity, and the magnetic member is connected with the mass block so that the magnetic The component drives the mass block to vibrate in the accommodating cavity;
  • the support frame and the two sides of the mass block in the vibration direction are respectively sandwiched to form a limiting space, and a damping block is arranged in a limit space to communicate with the support frame and the mass respectively.
  • Block elastic abutment is arranged in a limit space to communicate with the support frame and the mass respectively.
  • the mass block is provided with a penetrating installation cavity, and the magnetic member and the two damping blocks are embedded in the installation cavity;
  • Both ends of the support frame along the vibration direction have abutting surfaces, one of the damping blocks is supported between one of the abutting surfaces and the mass block on the cavity wall of the installation cavity, and the other damping block is It is supported between the other abutting surface and the cavity wall of the mass block in the installation cavity.
  • the vibrator assembly further includes a magnetically conductive plate, the magnetically conductive plate is connected to the surface of the mass block facing the support frame, and is recessed toward the installation cavity to form an abutment
  • the abutting portion is provided with a limiting through hole, and the abutting portion presses the magnetic part to be fixed in the installation cavity, and makes the two damping blocks be limited in the limiting through hole.
  • the elastic member is two elastic pieces, and the two elastic pieces are accommodated in the accommodating cavity, and are respectively supported on both sides of the mass block along the vibration direction and between the housing. between.
  • the elastic piece includes an elastic arm and two fixed ends connected to the elastic arm, one of the fixed ends is in contact with the mass block, and the other of the fixed ends is in contact with the shell.
  • the elastic arm is located in the vibration direction of the mass block, so as to buffer the vibration of the mass block in the vibration direction.
  • the two fixed ends are bent and connected to the elastic arm, and the two fixed ends are located on the same side of the mass block;
  • the elastic arm is integrated with the two fixed ends.
  • the magnetic part of the vibrator assembly vibrates under the drive of the electrified coil of the stator assembly, and the coil is wound around the iron core to reduce the magnetic field diffusion of the magnetic part. Leakage makes the effective magnetic lines passing through the coil denser, thereby improving the driving ability of the stator assembly to the vibrator assembly.
  • the adsorption force of the magnetic fit between the parts and the magnetic adsorption force of the iron core to the magnetic parts are balanced, so that the vibrator assembly can be stably maintained in a suspended state during the vibration process, and the vibrator assembly can be prevented from shaking towards the iron core during the vibration process.
  • the vibration stability of the vibrator assembly is improved, so that the linear vibration motor has higher vibration stability, and the reliability and service life of the linear vibration motor are improved.
  • Fig. 1 is the sectional structure schematic diagram of an embodiment of the linear vibrating motor of the present invention
  • Fig. 2 is a top view schematic diagram of the utility model linear vibration motor
  • Fig. 3 is a schematic diagram of the explosion structure of the linear vibration motor of the present invention.
  • Fig. 4 is a schematic diagram of the assembly structure of the support frame and the vibrator assembly of the linear vibration motor of the present invention
  • Fig. 5 is a structural schematic diagram of the support frame of the linear vibration motor of the present invention.
  • Fig. 6 is a structural schematic diagram of the magnetic guide plate of the linear vibration motor of the present invention.
  • Fig. 7 is a structural schematic diagram of the damping block of the linear vibration motor of the present invention.
  • Fig. 8 is a schematic structural view of the stator assembly of the linear vibration motor of the present invention.
  • FIG. 9 is a schematic structural view of the shrapnel of the linear vibration motor of the present invention.
  • connection and “fixation” should be understood in a broad sense, for example, “fixation” can be a fixed connection, a detachable connection, or an integration; It may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediary, and it may be an internal communication between two elements or an interaction relationship between two elements, unless otherwise clearly defined.
  • fixation can be a fixed connection, a detachable connection, or an integration; It may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediary, and it may be an internal communication between two elements or an interaction relationship between two elements, unless otherwise clearly defined.
  • linear vibration motor 100 proposed by the present utility model can be applied to electronic equipment (including consumer electronic products), which can be but not limited to mobile phones, notebook computers, tablet computers, personal digital assistants (Personal Digital Assistant) , PDA), e-book reader, MP3 (Moving Picture Experts Group Audio Layer III) player, MP4 (Moving Picture Experts Group Audio Layer IV) Players, wearable devices, navigators, handheld game consoles, etc.
  • electronic equipment including consumer electronic products
  • PDA Personal digital assistants
  • MP3 Moving Picture Experts Group Audio Layer III
  • MP4 Moving Picture Experts Group Audio Layer IV
  • linear vibration motor 100 The specific structure of the linear vibration motor 100 proposed by the present utility model will be described below in specific embodiments, and the linear vibration motor 100 is placed horizontally as an example to introduce:
  • the linear vibration motor 100 includes a housing 10, a stator assembly 20, a vibrator assembly 30 and a magnetic block 40
  • the housing 10 has a housing cavity 10a
  • the stator assembly 20 includes an iron core 22 and the coil 21 wound around the iron core 22, the coil 21 and the iron core 22 are accommodated in the accommodation cavity 10a, and fixed with the housing 10
  • the vibrator assembly 30 is suspended by an elastic member Placed in the accommodation chamber 10a, the vibrator assembly 30 is provided with a magnetic piece 31, the magnetic piece 31 is accommodated in the accommodation chamber 10a, and is arranged opposite to the coil 21, so that the coil 21 Driven to drive the vibrator assembly 30 to vibrate
  • the magnetic permeable block 40 is accommodated in the accommodating cavity 10a, the magnetic permeable block 40 is used for the magnetic cooperation of the magnetic member 31, and the magnetic permeable block 40 and the
  • the iron core 22 is oppositely disposed on two sides of the vibrator assembly 30 .
  • the vibration direction of the vibrator assembly 30 is defined as the horizontal left-right direction.
  • the magnetic part 31 includes two side magnets and a center magnet, the two side magnets are connected to the left and right sides of the center magnet, The magnetic poles on both sides are the same, and are opposite to the magnetic poles of the center magnet.
  • the two adjacent sides of the two coils 21 are opposite to the center magnet, and the two sides away from the two coils 21 are respectively magnetically opposite to the two sides.
  • a horizontal leftward (or rightward) force can be applied to the side magnets
  • a horizontal leftward (or rightward) force can be applied to the center magnet at the same time, thereby driving the magnetic member 31 to vibrate in the left-right direction.
  • the housing 10 includes an upper shell 11, a middle shell 12 and a bottom shell 13, the upper shell 11 and the bottom shell 13 are connected to the opposite sides of the middle shell 12 to enclose and form an accommodating cavity 10a, so as to facilitate the installation of various components.
  • this magnetic conduction block 40 can be made of metal material, in order to have magnetic cooperation with magnetic member 31, it can be understood that, when this coil 21 and iron core 22 are fixed on bottom shell 13, and this magnetic conduction block 40 is It can be directly fixed on the surface of the upper case 11 facing the bottom case 13 , or can be connected to the side of the vibrator assembly 30 close to the upper case 11 by other structures, which can be selected by those skilled in the art.
  • the stator assembly 20 also includes a circuit board 23, on which the lower end of the coil 21 is fixed, and the circuit board 23 is fixed on the bottom wall of the accommodating chamber 10a. That is to say, the coil 21 is fixed on the casing 10 through the circuit board 23 . In this way, the coil 21 can be fitted and fixed with the circuit board 23 in advance, and then assembled together with the circuit board 23 into the accommodating cavity 10 a to realize the fixing of the stator assembly 20 and the casing 10 . In this way, the assembly of the stator assembly 20 can be simplified. Moreover, since the coil 21 is fixed on the circuit board 23, the wiring between the coil 21 and the circuit board 23 is more convenient, which can avoid the appearance of long wiring in the accommodating cavity 10a, and avoid the assembly and operation of other internal structures.
  • the circuit board 23 may use a flexible circuit board 23 .
  • the fixing of the coil 21 and the circuit board 23 can be realized by, for example, bonding, welding and the like.
  • the fixing of the circuit board 23 and the housing 10 can be realized by, for example, bonding, welding and the like.
  • the magnetic part 31 of the vibrator assembly 30 vibrates under the drive of the coil 21 after the stator assembly 20 is energized, and the coil 21 is wound around the iron core 22 for setting, so as to Reduce the magnetic field diffusion and leakage of the magnetic part 31, so that the effective magnetic field lines passing through the coil 21 are denser, thereby improving the driving ability of the stator assembly 20 to the vibrator assembly 30, and at the same time, by arranging the magnetic permeable block 40 and the iron core 22 oppositely
  • the two sides of the vibrator assembly 30 are used to balance the adsorption force of the magnetic block 40 to the magnetic fit between the magnetic parts 31 and the magnetic adsorption force of the iron core 22 to the magnetic parts 31, so that the vibrator assembly 30 can be stably maintained in suspension during the vibration process
  • the vibrator assembly 30 In order to prevent the vibrator assembly 30 from shaking towards the direction of the iron core 22 during the vibration process, to improve the stability of the vibrator assembly 30 during vibration, thereby making the linear vibration motor 100 have higher vibration stability
  • the linear vibration motor 100 further includes a support frame 50, which is detachably connected to the housing 10 and located on the magnetic part 31 facing away from the iron core 22.
  • the magnetic permeable block 40 is connected with the supporting frame 50 .
  • the support frame 50 is detachably connected to the housing 10, so as to facilitate the early installation and subsequent maintenance of the support frame 50.
  • the support frame 50 is used to carry the magnetic block 40, so as to ensure that the magnetic block 40 is located in the accommodating cavity 10a, thereby ensuring the magnetic cooperation between the magnetic block 40 and the magnetic member 31, so as to further ensure the stability of the vibrator assembly 30 during vibration.
  • the side of the support frame 50 away from the magnetic member 31 is recessed to form a limiting groove 511 , and the magnetic conductive block 40 is embedded and fixed in the limiting groove 511 .
  • the limit groove 511 on the support frame 50, the positioning and installation of the magnetic permeable block 40 is facilitated.
  • the magnetic permeable block 40 can be fixed in the limiting groove 511 by welding, riveting, bonding, etc., so as to further improve the stability of the magnetic permeable block 40 after installation.
  • the support frame 50 includes a limiting portion 51 and two mounting portions 52 , and the limiting portion 51 is away from one side of the magnetic member 31 .
  • the limit groove 511 is formed on the side
  • the two mounting parts 52 are connected to the opposite sides of the limit part 51, and one of the mounting parts 52 is snapped into one of the locking grooves 121, so that the The limiting portion 51 is suspended on a side of the magnetic member 31 facing away from the iron core 22 .
  • the limiting portion 51 and the two mounting portions 52 can be integrally structured so as to ensure the overall structural strength of the support frame 50, and of course the limiting portion 51 and the two mounting portions 52 can also be fixed by clamping or the like.
  • the two mounting parts 52 can be respectively clamped to the slots 121 on opposite sides of the housing 10 by clamping, which is convenient for installation and disassembly, and improves assembly efficiency.
  • a side of the limiting portion 51 away from the magnetic member 31 is recessed to form a limiting groove 511 , so as to facilitate the installation of the magnetic block 40 .
  • the vibrator assembly 30 further includes a mass block 32 and two damping blocks 33, the mass block 32 is arranged in the accommodating cavity 10a, the magnetic member 31 and the mass block 32 connected so that the magnetic piece 31 drives the mass block 32 to vibrate in the accommodating cavity 10a; the support frame 50 and the both sides of the mass block 32 in the vibration direction are respectively sandwiched to form a limiting space
  • One said damping block 33 is arranged in one said limiting space, so as to elastically abut against said supporting frame 50 and said mass block 32 respectively.
  • the damping block 33 is squeezed with the support frame 50 during the vibration of the vibrator assembly 30, and directly reacts to the vibrator assembly 30, thereby improving the cushioning and support of the vibrator assembly 30, thereby making the linear vibration motor 100 have a higher Excellent vibration stability improves the reliability and service life of the linear vibration motor 100 .
  • the damping block 33 can be made of elastic materials such as foam and silica gel.
  • the mass block 32 is provided with a penetrating installation cavity 321, and the magnetic member 31 and the two damping blocks 33 are embedded in the installation cavity 321; the two sides of the support frame 50 along the vibration direction One end has an abutment surface 512, one of the damping blocks 33 is supported between one of the abutment surfaces 512 and the wall of the mass block 32 in the installation cavity 321, and the other of the damping blocks 33 is supported on the other An abutting surface 512 and the mass block 32 are between the cavity wall of the installation cavity 321 .
  • the magnetic piece 31 can pass through the opening of the installation cavity 321 and be fixed in the installation cavity 321 with clearance fit
  • the two damping blocks 33 can pass through the opening of the installation cavity 321 and be placed on the top of the magnetic piece 31, and the support frame 50 is fixed. behind the housing 10 and at least partially between the two damping blocks 33, so that a limiting space is formed between the support frame 50 and the cavity wall of the installation cavity 321 of the mass block 32, so that the magnetic member 31 and the mass block 32 are horizontal
  • the damping block 33 will be pressed toward the direction of the support frame 50 , so as to achieve the effect of improving the buffering effect on the vibrator assembly 30 .
  • the surface of the mass block 32 facing the stator assembly 20 may also be provided with a through hole communicating with the installation cavity 321 , so as to make the magnetic cooperation between the coil 21 and the magnetic member 31 more convenient and efficient.
  • the two abutting surfaces 512 of the support frame 50 can be set in a plane, which not only facilitates the die-casting of the support frame 50, but also helps to reduce the processing cost, and also facilitates the abutting and fixing of the damping block 33, so that the damping block 33 can be cushioned.
  • the stability in the process is stronger, thereby ensuring the stability of the vibrator assembly 30 when vibrating, and improving the reliability of the linear vibration motor 100 .
  • the vibrator assembly 30 also includes a magnetically conductive plate 60, the magnetically conductive plate 60 is connected to the surface of the mass block 32 facing the support frame 50, and is recessed toward the installation cavity 321 to form a resistance
  • the abutting portion 61 is provided with a limiting through hole 611, the abutting portion 61 presses the magnetic piece 31 and fixes it in the installation cavity 321, and makes the two damping blocks 33 limited in the Inside the limiting through hole 611.
  • the magnetic guide plate 60 can be attached to the surface of the mass block 32 facing the support frame 50, that is, attached to the surface of the mass block 32 with the installation cavity 321, and the magnetic guide plate 60 is also recessed towards the installation cavity 321.
  • the abutting portion 61 is formed, and the abutting portion 61 is used to abut against and press the magnetic component 31 to be fixed in the installation cavity 321 , so as to ensure the stability of the magnetic component 31 fixed in the installation cavity 321 .
  • the abutting portion 61 is provided with a limiting through hole 611, so that when the abutting portion 61 is inserted into the installation cavity 321, the two damping blocks 33 can partially pass through the limiting through hole 611 and be limited in the limiting through hole 611, thereby Further improve the limiting effect on the damping block 33 , improve the stability of the damping block 33 after installation, and further improve the reliability of the linear vibration motor 100 .
  • the damping block 33 includes the first positioning portion 331 connected to the second positioning portion 332 on opposite sides of the first positioning portion 331, so that the two second positioning portions 332 are embedded in the avoidance through hole to further
  • the stability of the damping block 33 after installation is improved, and the first positioning portion 331 can elastically abut against the inner wall of the mounting cavity 321 of the support frame 50 and the mass block 32 , thereby ensuring the effect of abutting and buffering the vibrator assembly 30 .
  • the elastic member is two elastic pieces 70, and the two elastic pieces 70 are accommodated in the accommodation cavity 10a, and are respectively supported on both sides of the mass block 32 along the vibration direction and on the between the housings 10. It can be understood that the two elastic pieces 70 can buffer and support the vibration of the mass block 32 in the left and right directions, thereby improving the stability of the vibrator assembly 30 during vibration and improving the vibration performance of the vibrator assembly 30 .
  • the elastic piece 70 includes an elastic arm 71 and two fixed ends 72 connected to the elastic arm 71, one of the fixed ends 72 is in contact with the mass block 32, and the other of the fixed ends 72 is in contact with the The casing 10 abuts, and the elastic arm 71 is located in the vibration direction of the mass block 32 to buffer the vibration of the mass block 32 in the vibration direction.
  • the connection between the elastic piece 70 and the housing 10 can be realized through the baffle 80
  • the connection between the elastic piece 70 and the mass block 32 can also be realized through the baffle 80 .
  • the connection between the baffle plate 80 and the elastic sheet 70 can be realized by, for example, gluing, welding and the like.
  • the elastic arm 71 can be arranged in a V shape or a U shape to reduce the displacement of the vibrator assembly 30 during vibration, thereby further improving the stability of the vibrator assembly 30 during vibration and improving the vibration performance of the vibrator assembly 30 .
  • the two fixed ends 72 are bent and connected to the elastic arm 71, and the two fixed ends 72 are located on the same side of the mass block 32; wherein, the two fixed ends 72 are bent and connected to the elastic arm 71 , and are located on the same side of the mass block 32, so that the two fixed ends 72 and the elastic arms 71 are respectively abutted against the two adjacent sides of the mass block 32, so as to further reduce stress concentration, improve reliability, and further improve the vibrator Vibration performance of assembly 30.
  • the elastic arm 71 is integrated with the two fixed ends 72 . It can be understood that the elastic arm 71 is integrated with the two fixed ends 72 , so as to ensure the overall structural strength of the elastic piece 70 , thereby ensuring the vibration performance of the vibrator assembly 30 .

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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

L'invention concerne un moteur à vibration linéaire (100), le moteur à vibration linéaire (100) comprenant un boîtier (10), un ensemble stator (20), un ensemble vibreur (30) et un bloc conducteur magnétique (40). Le boîtier (10) est pourvu d'une cavité de réception (10a) ; l'ensemble stator (20) comprend un noyau en fer (22) et une bobine (21) enroulée autour du noyau en fer (22), la bobine (21) et le noyau en fer (22) étant logés dans la cavité de réception (10a) et fixés au boîtier (10). L'ensemble vibreur (30) est suspendu dans la cavité de réception (10a) au moyen d'une pièce élastique. L'ensemble vibreur (30) est pourvu d'une pièce magnétique (31) et la pièce magnétique (31) est logée dans la cavité de réception (10a) et est disposée à l'opposé de la bobine (21) de manière à amener, par l'entraînement de la bobine (21), l'ensemble vibreur (30) à vibrer. Le bloc conducteur magnétique (40) est logé dans la cavité de réception (10a) et coopère magnétiquement avec la pièce magnétique (31), et le bloc conducteur magnétique (40) et le noyau en fer (22) sont disposés de manière opposée sur deux côtés de l'ensemble vibreur (30). Le bloc conducteur magnétique (40) et le noyau en fer (22) sont disposés de manière opposée sur deux côtés de l'ensemble vibreur (30) pour améliorer la stabilité de l'ensemble vibreur (30) du moteur à vibration linéaire (100) pendant la vibration, de manière à assurer la fiabilité et la durée de vie du moteur à vibration linéaire (100).
PCT/CN2022/112626 2021-08-16 2022-08-16 Moteur à vibration linéaire WO2023020450A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202121918903.XU CN215498695U (zh) 2021-08-16 2021-08-16 线性振动马达
CN202121918903.X 2021-08-16

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Publication Number Publication Date
WO2023020450A1 true WO2023020450A1 (fr) 2023-02-23

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN215498695U (zh) * 2021-08-16 2022-01-11 歌尔股份有限公司 线性振动马达
CN117639425A (zh) * 2022-08-26 2024-03-01 荣耀终端有限公司 一种振动马达及电子设备
CN218733801U (zh) * 2022-10-24 2023-03-24 深圳术叶创新科技有限公司 线性马达

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7960875B2 (en) * 2006-10-16 2011-06-14 Alps Electric Co., Ltd. Vibration generator
CN204947869U (zh) * 2015-09-29 2016-01-06 高宇 方形线性振动马达
CN105703596A (zh) * 2016-03-29 2016-06-22 金龙机电股份有限公司 一种线性电机
CN107107112A (zh) * 2015-01-16 2017-08-29 日本电产科宝株式会社 线性振动马达
CN207339617U (zh) * 2017-08-30 2018-05-08 瑞声科技（南京）有限公司 线性振动电机
CN212811536U (zh) * 2020-05-27 2021-03-26 瑞声科技(新加坡)有限公司 线性振动电机
CN215498695U (zh) * 2021-08-16 2022-01-11 歌尔股份有限公司 线性振动马达

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7960875B2 (en) * 2006-10-16 2011-06-14 Alps Electric Co., Ltd. Vibration generator
CN107107112A (zh) * 2015-01-16 2017-08-29 日本电产科宝株式会社 线性振动马达
CN204947869U (zh) * 2015-09-29 2016-01-06 高宇 方形线性振动马达
CN105703596A (zh) * 2016-03-29 2016-06-22 金龙机电股份有限公司 一种线性电机
CN207339617U (zh) * 2017-08-30 2018-05-08 瑞声科技（南京）有限公司 线性振动电机
CN212811536U (zh) * 2020-05-27 2021-03-26 瑞声科技(新加坡)有限公司 线性振动电机
CN215498695U (zh) * 2021-08-16 2022-01-11 歌尔股份有限公司 线性振动马达

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