WO2019029048A1 - Linear vibration motor - Google Patents

Linear vibration motor Download PDF

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Publication number
WO2019029048A1
WO2019029048A1 PCT/CN2017/112165 CN2017112165W WO2019029048A1 WO 2019029048 A1 WO2019029048 A1 WO 2019029048A1 CN 2017112165 W CN2017112165 W CN 2017112165W WO 2019029048 A1 WO2019029048 A1 WO 2019029048A1
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WIPO (PCT)
Prior art keywords
coil
magnet
linear vibration
vibration motor
assembly
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PCT/CN2017/112165
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French (fr)
Chinese (zh)
Inventor
张新众
毛东升
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歌尔股份有限公司
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Publication of WO2019029048A1 publication Critical patent/WO2019029048A1/en

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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
    • H02K33/02—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 invention belongs to the technical field of electronic products. More specifically, it relates to a linear vibration motor.
  • a miniature linear vibration motor is usually used for feedback of the system, such as clicking the vibration feedback of the touch screen.
  • a linear vibration motor is a component that converts electrical energy into mechanical vibration using the principle of electromagnetic force.
  • a conventional linear vibration motor is usually installed in a mobile communication terminal, a portable terminal or the like, which is usually installed at an edge portion of the device, and receives vibrations. The object produces vibration in a vertical direction.
  • Existing linear vibration motors typically include a housing having a receiving chamber in which is disposed a stator assembly, a vibrator assembly, and an elastomeric support configured to suspend the vibrator assembly within the receiving chamber.
  • the stator assembly may be a magnet or a coil fixedly coupled to the housing, and the corresponding vibration assembly may be a coil or magnet that is supported by the elastic support for up and down vibration.
  • the existing magnets as the stator assembly or the vibrator assembly are all cylindrical solid core structures, and the coil is surrounded by the periphery of the magnet. After the coil is energized, the coil is subjected to the ampere force to generate electromagnetic force and between the magnetic field generated by the magnet. The interaction, in turn, causes the vibrator assembly to move up and down, which in turn results in vibration of the entire linear vibration motor.
  • the existing linear vibration motor has the following drawbacks: 1.
  • the magnetic flux utilization efficiency of the magnet is low, which affects the overall tactile sensation.
  • the existing motor assembly process is complicated, especially when the coil and the mass are assembled as vibration components, the external positioning tool needs to be used to ensure coaxial assembly, the assembly steps are cumbersome, and it is difficult to control the assembly precision.
  • the existing linear vibration motor is only suitable for vibration experience under single frequency point, and does not meet the requirements of haptic feedback application for multi-frequency point vibration.
  • the technical problem to be solved by the present invention is to provide a linear vibration motor which can maximize the magnetic properties of the magnet, improve the utilization efficiency of the coil for the magnetic field lines of the magnet, improve the electromagnetic driving force of the motor, and the assembly process. Simple and accurate assembly, making the motor available Better vibration performance.
  • the present invention adopts the following technical solutions:
  • a linear vibration motor comprising:
  • stator assembly including a housing having a receiving cavity, a magnet disposed within the receiving cavity and coupled to the housing, the magnet including a hollow portion;
  • a vibrator assembly including a coil disposed on a magnetically permeable plate and a mass surrounding the periphery of the coil; the hollow portion extending in a vibration direction of the vibrator assembly, the coil accompanying the vibrator when the vibrator assembly vibrates The assembly vibrates and is inserted into the hollow portion of the magnet;
  • An elastic support member configured to suspend the vibrator assembly in a receiving cavity of the housing
  • the magnetic conductive plate further includes a convex portion formed by integrally bending the magnetic conductive plate body, and the convex portion is inserted into the coil.
  • the convex portion includes a side wall, a top wall at a top end of the side wall, and an opening at a bottom end of the convex portion; the side wall and the top wall collectively surrounding to form the The lumen of the raised portion.
  • the vibrator assembly further includes a yoke that is coupled to the upper surface of the top wall of the boss and extends above the coil.
  • the yoke includes a body portion disposed in a direction perpendicular to a vibration direction of the vibrator assembly, and an outer diameter of the body portion is larger than an inner diameter of the coil.
  • the yoke further includes a welding groove formed inwardly from the top surface of the top portion of the body portion corresponding to the top wall of the boss portion.
  • the yoke further includes an upper end portion extending outward from a top surface of the body portion in a vibration direction of the vibrator assembly.
  • the vibrator assembly further includes a center core inserted and coupled in the inner cavity of the boss.
  • a vibration space for vibrating the vibrator assembly is provided between the top upper surface of the yoke and the inner side surface of the top wall of the housing.
  • the coil and the mass are fixedly fixed on an upper surface of the magnetic conductive plate, and a gap for inserting a magnet is formed between the coil and the mass; the elastic support is fixedly fixed in the same Between the lower surface of the magnetically permeable plate and the inner side surface of the bottom wall of the housing, and configured to suspend the vibrator assembly within the receiving cavity of the housing.
  • the linear vibration motor further includes enabling the coil to be connected to an external device Electrically connecting the printed circuit board;
  • the printed circuit board includes: a fixing portion fixed to the magnetic conductive plate and electrically connected to the coil; and a connection outside the housing for electrically connecting with the external device And a flexible connecting portion that connects the fixing portion and the connecting portion into a unitary structure.
  • the linear vibration motor provided by the invention can maximize the magnetic property of the magnet by improving the structure of the magnet and the arrangement of the coil, and improve the utilization efficiency of the magnetic line of the magnet for the magnet, and improve the electromagnetic driving force and driving force of the motor.
  • the increase of the effective frequency of the motor increases the application of the dual-frequency or multi-frequency resonant frequency, satisfies the requirements of the vibration provided by the motor under the multi-frequency point, and improves the tactile experience of the motor.
  • the linear vibration motor structure provided by the invention reduces the difficulty of the motor manufacturing process and improves the overall assembly efficiency.
  • the coil and the mass block fixed on the magnetic conductive plate in the motor are used as the vibrator assembly of the motor. Since the magnetic conductive plate can be integrally formed by machining, the precision thereof is easy to control, and the structure of the convex portion of the magnetic conductive plate can be improved.
  • the overall assembly accuracy of the vibrator assembly simplifies the assembly process of the vibrator assembly, eliminating the need for external positioning tooling.
  • the central magnetic core with better magnetic permeability can be added to the inner cavity of the convex portion of the magnetic conductive plate according to the actual situation, which is more advantageous for further improving the utilization efficiency of the magnetic line of the magnet for the magnet.
  • the first housing and the second housing are both magnetically conductive, and the central magnetic core is made of a magnetic conductive material, and the magnetic lines of the magnet are closed while the centering action is performed, so that the magnet The magnetic effect is maximized, and the electromagnetic driving force of the motor is easily increased, thereby improving the tactile experience of the motor.
  • the linear vibration motor provided by the invention has a motor vibration balance position, and the vibrator assembly and the stator assembly are mutually attractive, which reduces the micro vibration of the motor without current or weak current, so that the motor can quickly return to a stationary state.
  • the linear vibration motor structure provided by the invention has large electromagnetic driving force and shortens the motor vibration rising time; the static balance magnetic force of the motor balance position is large, and the motor vibration falling time is shortened; the overall motor response speed is improved.
  • Fig. 1 is a cross-sectional view showing the structure of a linear vibration motor according to a first embodiment of the present invention.
  • FIG. 2 is a schematic view showing the arrangement of a vibrator assembly and a magnet in a linear vibration motor according to a first embodiment of the present invention.
  • FIG. 3 shows a vibrator assembly and a magnet in a linear vibration motor according to a second embodiment of the present invention.
  • FIG. 4 is a schematic view showing the arrangement of a vibrator assembly and a magnet in a linear vibration motor according to a third embodiment of the present invention.
  • Fig. 5 is a view showing the arrangement of a vibrator assembly and a magnet in a linear vibration motor according to a fourth embodiment of the present invention.
  • Fig. 6 is a view showing the arrangement of a vibrator assembly and a magnet in a linear vibration motor according to a fifth embodiment of the present invention.
  • Fig. 7 is a view showing the arrangement of a vibrator assembly and a magnet in a linear vibration motor according to a sixth embodiment of the present invention.
  • Fig. 8 is a view showing the arrangement of a vibrator assembly and a magnet in a linear vibration motor according to a seventh embodiment of the present invention.
  • Fig. 9 is a view showing the arrangement of a vibrator assembly and a magnet in a linear vibration motor according to an eighth embodiment of the present invention.
  • weights both of which refer to one of the components that cooperate with the magnet or coil to vibrate within the motor housing as a vibrator assembly.
  • present invention is mainly used for the improvement of the linear vibration motor used in the description, and may also be referred to as a Y-direction vibration motor.
  • a linear vibration motor will be specifically described as an example.
  • the invention provides a linear vibration motor with a novel structure.
  • the vibration motor improves the structure of the magnet and the arrangement of the coil, and effectively solves the problem that the magnetic line utilization efficiency of the current magnet is low, and the existing linear vibration motor is only applicable.
  • the vibration experience at a single frequency point does not satisfy the requirements for haptic feedback applications for multi-frequency point vibration.
  • the linear vibration motor junction provided by the present invention
  • the structure is also specially improved for the structure of the vibrator assembly in the motor, which reduces the difficulty of the motor manufacturing process and improves the overall assembly efficiency.
  • a linear vibration motor includes: a stator assembly, a vibrator assembly, and an elastic support member 5; wherein the stator assembly includes a housing 1 having a receiving cavity, A magnet 2 is housed in the chamber and fixed in combination with the housing 1, and the magnet 2 includes a hollow portion 21 that extends in the vibration direction of the vibrator assembly.
  • the housing 1 of the present invention includes a first housing 11 having an opening at the bottom, and a second housing 12 coupled to the opening; the first housing 11 and the second housing 12 A housing 1 having a receiving chamber is formed.
  • the magnet 2 in the present invention may be a segmented or continuous annular structure, which is not limited in the present invention.
  • the vibrator assembly includes a coil 3 disposed on the magnetic conductive plate 6 and a mass 4 disposed around the periphery of the coil 3 and coaxial with the coil.
  • the coil 3 vibrates and inserts with the vibrator assembly
  • the hollow portion 21 of the magnet 2; in the illustrated structure, the coil 3 and the mass 4 are fixedly coupled to the upper surface of the magnetic conductive plate 6, and a magnet 2 is formed between the coil 3 and the mass 4.
  • the inserted gap 7; and the magnetic conductive plate 6 of the present invention further includes a convex portion 61 which is integrally bent by the plate body of the magnetic conductive plate 6, and the convex portion 61 is inserted into the coil 3.
  • the convex portion 61 includes a side wall 611, a top wall 612 at the top end of the side wall 611, and an opening 613 at the bottom end of the convex portion 61; the side wall 611 and the top wall 612 are surrounded by The inner cavity 614 of the raised portion 61 is formed.
  • the vibrator assembly is mainly composed of a coil 3 and a mass 4 fixed on the magnetic conductive plate 6, and since the convex portion 61 of the magnetic conductive plate 6 can be integrally formed by bending of the magnetic conductive plate 6, the position thereof is located. The precision is easy to control, and the structure of the boss portion 61 on the magnetic conductive plate 6 of the present invention is utilized.
  • the coil 3 can be directly sleeved on the boss portion 61 and fixed between the two.
  • the fixing strength is high, and the overall coaxial assembly precision between the coil 3 and the magnetic conductive plate 6 in the vibrator assembly is improved, the subsequent assembly of the mass 4 is facilitated, the polarization of the vibrator assembly during the vibration process is avoided, and the vibrator is simplified.
  • the assembly process of the components eliminates the need for external positioning tools.
  • the convex portion 61 on the magnetic conductive plate 6 can also guide the magnetic lines of force of the magnet 2 having an annular structure to increase the magnetic field strength at the position where the coil 3 is located, and increase the electromagnetic driving force of the motor.
  • both the first housing 11 and the second housing 12 can be made of a material having magnetic permeability, so that the magnetic lines of force of the magnet can be closed, and the magnetic action of the magnet 2 can be maximized to enhance the motor. Electromagnetic driving force.
  • the housing 1 shown in FIG. 1 has a circular structure, and it is obvious that the housing may also be non-circular.
  • the structure of the cross section may be, for example, a rectangular parallelepiped shape, a rounded rectangular parallelepiped shape, or the like.
  • the linear vibration motor of the present embodiment further includes a circuit 3 for electrically connecting the coil 3 to an external device;
  • the printed circuit board 8 includes: a lower surface of the magnetic conductive plate 6 And a fixing portion 81 electrically connected to the coil 3; a connecting portion 82 located outside the casing 1 and fixedly coupled to the upper surface of the second casing 12 for electrically connecting with an external device;
  • the fixing portion 81 and the connecting portion 82 are connected to a flexible connecting portion 83 of a unitary structure.
  • the flexible connecting portion 83 is located below the elastic arm of the elastic support member 5. When the vibrator assembly is vibrated, when the elastic arm is pressed or deformed, the flexible connecting portion 83 moves up and down, thereby avoiding the flexible connecting portion 83 and the elastic portion.
  • the magnet 2 having an annular structure fixed in combination with the inner surface of the top wall of the first casing 11 is used as a stator assembly, and the coil 3 is inserted as a part of the vibrator assembly into the hollow portion 21 of the magnet 2 with the vibrator assembly.
  • the magnet 2 as a stator having a ring structure and its arrangement with the coil 3 as a vibrator are compared with the columnar solid core magnet used in the conventional vibration motor, due to the magnetic field lines of the existing cylindrical solid magnet.
  • the radiation is dispersed outward from the central axis, and the magnetic lines of the ring-shaped structural magnet of the present invention are concentrated on the central axis, so that the magnetic field strength of the coil disposed on the central axis of the magnet of the annular structure is higher than that of the magnetic field.
  • the coil of the periphery of the cylindrical solid core magnet; and the coil of the present invention is disposed in the inner space of the magnet having the annular structure, and the diameter of the coil can be made smaller, so the effective number of turns of the coil is significantly higher than that of the outer core of the cylindrical solid magnet. The number of effective turns of the large diameter coil.
  • the magnetic conductive plate 6 is disposed under the magnet 2, so that the stator assembly including the magnet 2 has a large attraction force to the vibrator assembly, and the attractive force can provide a certain component to the vibrator assembly after the motor is powered off.
  • the vibration resistance in simple terms, is equivalent to providing a brake to the vibrator assembly, which enables the vibrator assembly in the motor to quickly stop vibrating, ie "shortening the motor vibration drop time".
  • the utilization of the magnetic line of the magnet 2 is increased, so that the electromagnetic driving force of the motor is increased, thereby accelerating the starting process of the motor, that is, "shortening the motor vibration rise time" .
  • the linear vibration motor provided by the present invention has an advantage over the prior art in that when the motor is in the vibration balance position, the vibrator assembly and the stator assembly are mutually attractive, and the micro vibration of the motor without current or weak current can be reduced. Allows the motor to quickly return to a standstill.
  • the linear vibration motor structure provided by the invention has large electromagnetic driving force, can shorten the motor vibration rising time; and the motor static pressure is large in the equilibrium position, the motor vibration falling time can be further shortened, so the invention can improve the motor response as a whole. speed.
  • the linear vibration motor provided by the present invention can maximize the magnetic properties of the magnet, improve the utilization efficiency of the coil for the magnetic field lines of the magnet, improve the electromagnetic driving force of the motor, and increase the driving force to increase the effective bandwidth of the motor. It is convenient for dual-frequency or multi-frequency resonant frequency applications, and meets the requirements of the vibration of the motor under multi-frequency points, improves the tactile experience of the motor, and improves the overall performance of the linear vibration motor as a whole.
  • FIG. 3 is a schematic view showing the arrangement structure of the vibrator assembly and the magnet in the linear vibration motor according to the second embodiment of the present invention.
  • the vibrator assembly further includes a yoke 9 coupled to the upper surface of the top wall 612 of the boss 61 and extending above the coil 3, the yoke 9 including a body portion 91, The body portion 91 is disposed in a direction perpendicular to the vibration direction of the vibrator assembly, and the outer diameter of the body portion 91 is larger than the inner diameter of the coil 3; further, the top upper surface of the yoke 9 and the first housing 11 There is a vibration space between the inner side surfaces of the top wall for vibration of the vibrator assembly.
  • the yoke 9 can provide a guiding path and a direction for the magnetic field lines of the magnet, and can further increase the effect of the magnetic lines of the magnet 2 having the annular structure on the central axis.
  • the electromagnetic driving force of the motor is increased by increasing the strength of the magnetic field at the position where the coil 3 is located.
  • the circumferential outer edge of the yoke 9 may be located on the inner side, the outer side or the flush side of the circumferential outer edge of the coil 3.
  • the circumferential outer edge of the yoke 9 is located outside the circumferential outer edge of the coil 3, Make it as possible to guide the magnetic lines of force.
  • FIG. 4 with respect to the arrangement structure of the vibrator assembly and the magnet shown in FIG. 3, as a third embodiment of the further improvement, in order to facilitate the fixation of the upper surface of the top wall 612 of the convex portion 61 of the magnetic conductive plate 6 and the convex portion 61, And the fixing strength between the two is increased to improve the stability and reliability of the motor vibrator assembly.
  • the yoke 9 and the upper surface of the top wall 612 of the convex portion 61 of the magnetic conductive plate 6 may be connected by laser welding.
  • the yoke 9 further includes a splicing groove 92 formed inwardly from the top surface of the main portion 91 of the yoke 9 corresponding to the top wall 612 of the boss portion 61.
  • the arrangement of the welding groove 92 can reduce the portion of the yoke 9 corresponding to the top wall 612 of the boss 61. It is convenient for laser welding between the two.
  • the other advantages of the third embodiment are the same as those of the prior art provided by any of the above embodiments, and are not described herein again.
  • the yoke 9 further includes an upper surface along the top surface of the main body portion 91 along the vibrator
  • the upper end portion 93 of the component vibrating outwardly extends, and the body portion 91 and the upper end portion 93 are of unitary structure.
  • the upper end portion 93 can be used to provide a guiding path and a direction for the magnetic lines of force, so that the magnetic lines of force are concentrated at the coil to increase the strength of the magnetic field at the position where the coil is located.
  • the diameter of the upper end portion 93 may be selected according to actual needs within a range larger than, smaller than, or equal to the diameter of the convex portion 61.
  • the other advantages of the fourth embodiment are the same as those of the prior art provided by any of the above embodiments, and are not described herein again.
  • the configuration of the vibrator assembly and the magnet provided by the first embodiment shown in FIG. 1 and FIG. 2 is a fifth embodiment of the present invention.
  • the vibrator assembly further includes an insertion.
  • the central core 100 can be made of a material with better magnetic permeability, which can further increase the magnetic permeability effect inside the coil 3, improve the utilization efficiency of the coil 3 for the magnetic field lines of the magnet, and enhance the electromagnetic driving force of the motor to realize the invention of the present invention. purpose.
  • the vibrator assembly further includes an insertion and a combination.
  • the center core 100 is fixed in the inner cavity 614 of the boss 61.
  • the function and effect of the center core 100 are the same as those of the center core described in the fifth embodiment, and will not be described again.
  • the arrangement structure of the vibrator assembly and the magnet provided in the third embodiment shown in FIG. 4 is further improved as the seventh embodiment.
  • the vibrator assembly is further A central core 100 that is inserted and bonded in the inner cavity 614 of the boss 61 is included.
  • the arrangement structure of the vibrator assembly and the magnet provided in the fourth embodiment shown in FIG. 5 is further improved as the eighth embodiment.
  • the vibrator assembly is further A central core 100 that is inserted and bonded in the inner cavity 614 of the boss 61 is included.
  • center core 100 in the seventh embodiment and the eighth embodiment are the same as those of the center core 100 according to the fifth embodiment or the sixth embodiment, and will not be described again.
  • the linear vibration motor structure provided by the present invention can maximize the magnetic properties of the magnet, improve the utilization efficiency of the coil for the magnetic field lines of the magnet, and improve the electromagnetic driving force of the motor.
  • the present invention is particularly directed to the vibrator assembly of the motor. The structure has been improved, the difficulty of the motor manufacturing process is reduced, the overall assembly efficiency is improved, and the central magnetic core with better magnetic permeability can be added according to the actual situation, which is more conducive to further improving the utilization efficiency of the coil for the magnet magnetic line.

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

Abstract

A linear vibration motor, comprising: a stator assembly, the stator assembly comprising a housing (1) having an accommodation cavity, and a magnet (2) that is disposed in the accommodation cavity and that is fixedly combined with the housing (1), the magnet (2) comprising a hollow portion (21); a vibration assembly, the vibration assembly comprising a coil (3) provided on a magnetically-conductive plate (6), as well as a mass block (4) surrounding the periphery of the coil (3), wherein because the hollow portion (21) extends along the vibrating direction of the vibration assembly, when the vibration assembly vibrates, the coil (3) vibrates along with the vibration assembly and moves into the hollow portion (21) of the magnet (2); an elastic support member (5) configured to keep the vibration assembly suspended in the accommodation cavity of the housing (1); the magnetically-conductive plate (6) further comprises a raised portion (61) formed by an upward turn of the body of the magnetically-conductive plate (6), the raised portion (61) extending into the coil (3). The described linear vibration motor structure maximizes the utilization of the magnetism of the magnet, increases the efficiency of the coil in respect of the magnetic lines of force of the magnet, and increases the electromagnetic driving force of the motor. The simplicity and high degree of precision with which the motor may be assembled improves the vibration performance thereof.

Description

线性振动马达Linear vibration motor 技术领域Technical field
本发明属于电子产品技术领域。更具体地，涉及一种线性振动马达。The invention belongs to the technical field of electronic products. More specifically, it relates to a linear vibration motor.
背景技术Background technique
随着通信技术的发展，便携式电子设备，例如手机、平板电脑、智能穿戴设备、多媒体娱乐设备等已经成为人们的生活必须品。在这些电子设备中，通常使用微型的线性振动马达来做***的反馈，例如点击触摸屏的振动反馈等。With the development of communication technologies, portable electronic devices, such as mobile phones, tablet computers, smart wearable devices, multimedia entertainment devices, etc., have become a necessity for people. In these electronic devices, a miniature linear vibration motor is usually used for feedback of the system, such as clicking the vibration feedback of the touch screen.
线性振动马达是一种利用电磁力原理将电能转化为机械振动的部件，常规的线性振动马达通常安装在移动通信终端、便携式终端等内，其通常安装在设备的边缘部分，并且在与接收振动的对象相垂直的方向上产生振动。A linear vibration motor is a component that converts electrical energy into mechanical vibration using the principle of electromagnetic force. A conventional linear vibration motor is usually installed in a mobile communication terminal, a portable terminal or the like, which is usually installed at an edge portion of the device, and receives vibrations. The object produces vibration in a vertical direction.
现有线性振动马达通常包括具有容纳腔的壳体，容纳腔内设置有定子组件、振子组件以及配置为将振子组件悬置在容纳腔内的弹性支撑件。定子组件可为与壳体固定连接的磁体或者线圈，与之对应的振动组件可为通过弹性支撑件支撑进行上、下振动的线圈或者磁体。其中现有的作为定子组件或者振子组件的磁体均为柱状实芯结构，线圈围绕在磁体***，在线圈通电后，线圈便会受到安培力作用产生电磁力，并与磁体所产生的磁场之间相互作用，进而使得振子组件向上和向下运动，进而会获得整个线性振动马达发生振动的效果。Existing linear vibration motors typically include a housing having a receiving chamber in which is disposed a stator assembly, a vibrator assembly, and an elastomeric support configured to suspend the vibrator assembly within the receiving chamber. The stator assembly may be a magnet or a coil fixedly coupled to the housing, and the corresponding vibration assembly may be a coil or magnet that is supported by the elastic support for up and down vibration. The existing magnets as the stator assembly or the vibrator assembly are all cylindrical solid core structures, and the coil is surrounded by the periphery of the magnet. After the coil is energized, the coil is subjected to the ampere force to generate electromagnetic force and between the magnetic field generated by the magnet. The interaction, in turn, causes the vibrator assembly to move up and down, which in turn results in vibration of the entire linear vibration motor.
然而现有的线性振动马达存在以下缺陷，1、磁体的磁力线利用效率低下，影响整体触觉感受。2、现有马达装配过程复杂，特别是当线圈及质量块在作为振动组件装配时，二者之间需通过外部定位工装以保证同轴装配，装配步骤繁琐，且难以控制装配精准度。3、现有线性振动马达只适用于单频点下振动体验，不满足对于多频点振动的触觉反馈应用要求。However, the existing linear vibration motor has the following drawbacks: 1. The magnetic flux utilization efficiency of the magnet is low, which affects the overall tactile sensation. 2. The existing motor assembly process is complicated, especially when the coil and the mass are assembled as vibration components, the external positioning tool needs to be used to ensure coaxial assembly, the assembly steps are cumbersome, and it is difficult to control the assembly precision. 3. The existing linear vibration motor is only suitable for vibration experience under single frequency point, and does not meet the requirements of haptic feedback application for multi-frequency point vibration.
因此，需要提供一种新型的线性振动马达，以解决现有技术中存在的缺陷。Therefore, there is a need to provide a new type of linear vibration motor to solve the drawbacks of the prior art.
发明内容Summary of the invention
鉴于上述问题，本发明要解决的技术问题是提供一种线性振动马达，该振动马达结构可最大化利用磁体的磁性，提升线圈对于磁体磁力线的利用效率，提升马达的电磁驱动力，且装配过程简便，装配精度高，使得马达可获 得更好的振动性能。In view of the above problems, the technical problem to be solved by the present invention is to provide a linear vibration motor which can maximize the magnetic properties of the magnet, improve the utilization efficiency of the coil for the magnetic field lines of the magnet, improve the electromagnetic driving force of the motor, and the assembly process. Simple and accurate assembly, making the motor available Better vibration performance.
为解决上述技术问题，本发明采用下述技术方案：In order to solve the above technical problems, the present invention adopts the following technical solutions:
一种线性振动马达，所述马达包括：A linear vibration motor, the motor comprising:
定子组件，所述定子组件包括具有容纳腔的壳体，位于所述容纳腔内且与所述壳体结合固定的磁体，所述磁体包括中空部；a stator assembly, the stator assembly including a housing having a receiving cavity, a magnet disposed within the receiving cavity and coupled to the housing, the magnet including a hollow portion;
振子组件，所述振子组件包括设置在导磁板上的线圈和围绕在所述线圈***的质量块；所述中空部沿振子组件振动方向延伸，所述振子组件振动时，所述线圈随振子组件振动并***所述磁体的中空部；a vibrator assembly including a coil disposed on a magnetically permeable plate and a mass surrounding the periphery of the coil; the hollow portion extending in a vibration direction of the vibrator assembly, the coil accompanying the vibrator when the vibrator assembly vibrates The assembly vibrates and is inserted into the hollow portion of the magnet;
弹性支撑件，配置为将所述振子组件悬置在所述壳体的容纳腔内；An elastic support member configured to suspend the vibrator assembly in a receiving cavity of the housing;
所述导磁板还包括由所述导磁板板体一体弯折构成的凸起部，该凸起部***在所述线圈内。The magnetic conductive plate further includes a convex portion formed by integrally bending the magnetic conductive plate body, and the convex portion is inserted into the coil.
此外，优选地方案是，所述凸起部包括侧壁、位于所述侧壁顶端的顶壁，以及位于所述凸起部底端的开口；所述侧壁及顶壁共同围纳形成所述凸起部的内腔。Further, preferably, the convex portion includes a side wall, a top wall at a top end of the side wall, and an opening at a bottom end of the convex portion; the side wall and the top wall collectively surrounding to form the The lumen of the raised portion.
此外，优选地方案是，所述振子组件还包括结合固定在所述凸起部顶壁上表面的且延伸至所述线圈上方的导磁轭。Further, preferably, the vibrator assembly further includes a yoke that is coupled to the upper surface of the top wall of the boss and extends above the coil.
此外，优选地方案是，所述导磁轭包括本体部，所述本体部呈与所述振子组件振动方向相垂直的方向设置，且该本体部的外径大于所述线圈的内径。Further, preferably, the yoke includes a body portion disposed in a direction perpendicular to a vibration direction of the vibrator assembly, and an outer diameter of the body portion is larger than an inner diameter of the coil.
此外，优选地方案是，所述导磁轭还包括有与所述凸起部顶壁对应的由本体部顶部上表面向内凹陷形成的熔接槽。Further, preferably, the yoke further includes a welding groove formed inwardly from the top surface of the top portion of the body portion corresponding to the top wall of the boss portion.
此外，优选地方案是，所述导磁轭还包括由所述本体部顶部上表面沿振子组件振动方向向外延伸出的上端部。Further, preferably, the yoke further includes an upper end portion extending outward from a top surface of the body portion in a vibration direction of the vibrator assembly.
此外，优选地方案是，所述振子组件还包括***并结合固定在所述凸起部的内腔中的中心磁芯。Further, preferably, the vibrator assembly further includes a center core inserted and coupled in the inner cavity of the boss.
此外，优选地方案是，所述导磁轭的顶部上表面与壳体顶壁的内侧表面之间具有供振子组件振动的振动空间。Further, it is preferable that a vibration space for vibrating the vibrator assembly is provided between the top upper surface of the yoke and the inner side surface of the top wall of the housing.
此外，优选地方案是，所述线圈及质量块结合固定在所述导磁板的上表面，所述线圈与质量块之间形成有供磁体***的间隙；所述弹性支撑件结合固定在所述导磁板的下表面与壳体底壁的内侧表面之间，且配置为将所述振子组件悬置在所述壳体的容纳腔内。In addition, it is preferable that the coil and the mass are fixedly fixed on an upper surface of the magnetic conductive plate, and a gap for inserting a magnet is formed between the coil and the mass; the elastic support is fixedly fixed in the same Between the lower surface of the magnetically permeable plate and the inner side surface of the bottom wall of the housing, and configured to suspend the vibrator assembly within the receiving cavity of the housing.
此外，优选地方案是，所述线性振动马达还包括使线圈能够与外部设备 电性连接印刷电路板；所述印刷电路板包括：结合固定在所述导磁板上的且与线圈电性连接的固定部；位于所述壳体外的用于与外部设备电性连接的连接部；及将所述固定部与所述连接部连接成整体结构的柔性连接部。Further, preferably, the linear vibration motor further includes enabling the coil to be connected to an external device Electrically connecting the printed circuit board; the printed circuit board includes: a fixing portion fixed to the magnetic conductive plate and electrically connected to the coil; and a connection outside the housing for electrically connecting with the external device And a flexible connecting portion that connects the fixing portion and the connecting portion into a unitary structure.
本发明的有益效果如下：The beneficial effects of the present invention are as follows:
1、本发明所提供的线性振动马达，通过改进磁体结构及其与线圈的配置方式，可最大化利用磁体的磁性，提升线圈对于磁体磁力线的利用效率，提升了马达的电磁驱动力，驱动力的增大使得马达有效频宽增大，便于双频或多频谐振频率的应用，满足多频点下对马达所提供振感的要求，提高了马达的触觉体验。1. The linear vibration motor provided by the invention can maximize the magnetic property of the magnet by improving the structure of the magnet and the arrangement of the coil, and improve the utilization efficiency of the magnetic line of the magnet for the magnet, and improve the electromagnetic driving force and driving force of the motor. The increase of the effective frequency of the motor increases the application of the dual-frequency or multi-frequency resonant frequency, satisfies the requirements of the vibration provided by the motor under the multi-frequency point, and improves the tactile experience of the motor.
2、本发明所提供的线性振动马达结构，降低了马达制程工艺难度，提高了整体装配效率。特别是马达中固定在导磁板上的线圈及质量块作为马达的振子组件，由于导磁板可通过加工一体成型，其精度易于控制，进而利用该导磁板凸起部的结构设置可提高振子组件的整体装配精度，简化了振子组件的装配过程，省去了外部定位工装。并且导磁板凸起部的内腔中还可根据实际情况增设导磁性能更好的中心磁芯，更加利于进一步地提升线圈对于磁体磁力线的利用效率。2. The linear vibration motor structure provided by the invention reduces the difficulty of the motor manufacturing process and improves the overall assembly efficiency. In particular, the coil and the mass block fixed on the magnetic conductive plate in the motor are used as the vibrator assembly of the motor. Since the magnetic conductive plate can be integrally formed by machining, the precision thereof is easy to control, and the structure of the convex portion of the magnetic conductive plate can be improved. The overall assembly accuracy of the vibrator assembly simplifies the assembly process of the vibrator assembly, eliminating the need for external positioning tooling. Moreover, the central magnetic core with better magnetic permeability can be added to the inner cavity of the convex portion of the magnetic conductive plate according to the actual situation, which is more advantageous for further improving the utilization efficiency of the magnetic line of the magnet for the magnet.
3、本发明所提供的线性振动马达结构中，第一壳体、第二壳体均有导磁性，中心磁芯由导磁性材料构成，在起定心作用的同时闭合磁体的磁力线，使磁体的磁性作用最大化发挥，便于提升马达的电磁驱动力，从而提高马达的触觉体验。3. In the linear vibration motor structure provided by the present invention, the first housing and the second housing are both magnetically conductive, and the central magnetic core is made of a magnetic conductive material, and the magnetic lines of the magnet are closed while the centering action is performed, so that the magnet The magnetic effect is maximized, and the electromagnetic driving force of the motor is easily increased, thereby improving the tactile experience of the motor.
4、本发明所提供的线性振动马达，马达振动平衡位置，振子组件与定子组件相互吸引力较大，降低了马达无电流或弱电流状态下的微小振动，使马达可快速恢复到静止状态。4. The linear vibration motor provided by the invention has a motor vibration balance position, and the vibrator assembly and the stator assembly are mutually attractive, which reduces the micro vibration of the motor without current or weak current, so that the motor can quickly return to a stationary state.
5、本发明所提供的线性振动马达结构，电磁驱动力大，缩短马达振动上升时间；马达平衡位置静磁力大，缩短马达振动下降时间；整体提高了马达响应速度。5. The linear vibration motor structure provided by the invention has large electromagnetic driving force and shortens the motor vibration rising time; the static balance magnetic force of the motor balance position is large, and the motor vibration falling time is shortened; the overall motor response speed is improved.
附图说明DRAWINGS
下面结合附图对本发明的具体实施方式作进一步详细的说明。The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.
图1示出本发明第一实施方式所提供线性振动马达的结构剖视图。Fig. 1 is a cross-sectional view showing the structure of a linear vibration motor according to a first embodiment of the present invention.
图2示出本发明第一实施方式所提供线性振动马达中振子组件与磁体的配置结构示意图。2 is a schematic view showing the arrangement of a vibrator assembly and a magnet in a linear vibration motor according to a first embodiment of the present invention.
图3示出本发明第二实施方式所提供线性振动马达中振子组件与磁体的 配置结构示意图。3 shows a vibrator assembly and a magnet in a linear vibration motor according to a second embodiment of the present invention. Configuration structure diagram.
图4示出本发明第三实施方式所提供线性振动马达中振子组件与磁体的配置结构示意图。4 is a schematic view showing the arrangement of a vibrator assembly and a magnet in a linear vibration motor according to a third embodiment of the present invention.
图5示出本发明第四实施方式所提供线性振动马达中振子组件与磁体的配置结构示意图。Fig. 5 is a view showing the arrangement of a vibrator assembly and a magnet in a linear vibration motor according to a fourth embodiment of the present invention.
图6示出本发明第五实施方式所提供线性振动马达中振子组件与磁体的配置结构示意图。Fig. 6 is a view showing the arrangement of a vibrator assembly and a magnet in a linear vibration motor according to a fifth embodiment of the present invention.
图7示出本发明第六实施方式所提供线性振动马达中振子组件与磁体的配置结构示意图。Fig. 7 is a view showing the arrangement of a vibrator assembly and a magnet in a linear vibration motor according to a sixth embodiment of the present invention.
图8示出本发明第七实施方式所提供线性振动马达中振子组件与磁体的配置结构示意图。Fig. 8 is a view showing the arrangement of a vibrator assembly and a magnet in a linear vibration motor according to a seventh embodiment of the present invention.
图9示出本发明第八实施方式所提供线性振动马达中振子组件与磁体的配置结构示意图。Fig. 9 is a view showing the arrangement of a vibrator assembly and a magnet in a linear vibration motor according to an eighth embodiment of the present invention.
具体实施方式Detailed ways
在下述的描述中，出于说明的目的，为了提供对一个或者多个实施方式的全面理解，阐述了许多具体细节。然而，很明显，也可以在没有这些具体细节的情况下实现这些实施方式。在其它例子中，为了便于描述一个或者多个实施方式，公知的结构和设备以方框图的形式示出。In the following description, for the purposes of illustration However, it is apparent that these embodiments may be practiced without these specific details. In other instances, well known structures and devices are shown in block diagram form in order to facilitate describing one or more embodiments.
在下述具体实施方式的描述中所用到的“质量块”也可以称作“配重块”，均指与磁体或者线圈配合在马达壳体内作为振子组件发生振动的组件之一。另外，本发明主要用于描述中用到的线性振动马达的改进，也可以称作Y向振动马达。但是为了表述的方便，在以下的实施方式描述中，具体以线性振动马达为例进行说明。The "mass" used in the description of the following detailed description may also be referred to as "weights", both of which refer to one of the components that cooperate with the magnet or coil to vibrate within the motor housing as a vibrator assembly. Further, the present invention is mainly used for the improvement of the linear vibration motor used in the description, and may also be referred to as a Y-direction vibration motor. However, for convenience of description, in the following description of the embodiments, a linear vibration motor will be specifically described as an example.
为了更清楚地说明本发明，下面结合优选实施方式和附图对本发明做进一步的说明。但需要说明的是，为了便于理解，本发明中涉及的如“上表面”，“下表面”，“底部”，“顶部”等描述，仅是参照附图所提供样式的说明，其并非用于限制，本领域一般技术人员可以理解的是，当本发明中马达摆放位置发生变化时，文中所涉及的相应的描述及用词应当以其在马达中所起的实际作用为准。In order to explain the present invention more clearly, the present invention will be further described in conjunction with the preferred embodiments and the accompanying drawings. It should be noted that, for ease of understanding, the descriptions of the "upper surface", "lower surface", "bottom", "top" and the like referred to in the present invention are merely illustrative of the styles provided with reference to the drawings, which are not used. To the extent that it is understood by those skilled in the art, when the position of the motor is changed in the present invention, the corresponding description and terminology referred to herein should be based on its actual effect in the motor.
本发明提供了一种新型结构的线性振动马达，首先该振动马达对磁体结构及其与线圈的配置方式进行了改进，有效解决了目前磁体的磁力线利用效率低下，且现有线性振动马达只适用于单频点下振动体验，不满足对于多频点振动的触觉反馈应用要求的问题。其次，本发明所提供的线性振动马达结 构，还特别针对马达中振子组件的结构进行了改进，降低了马达制程工艺难度，提高了整体装配效率。The invention provides a linear vibration motor with a novel structure. Firstly, the vibration motor improves the structure of the magnet and the arrangement of the coil, and effectively solves the problem that the magnetic line utilization efficiency of the current magnet is low, and the existing linear vibration motor is only applicable. The vibration experience at a single frequency point does not satisfy the requirements for haptic feedback applications for multi-frequency point vibration. Secondly, the linear vibration motor junction provided by the present invention The structure is also specially improved for the structure of the vibrator assembly in the motor, which reduces the difficulty of the motor manufacturing process and improves the overall assembly efficiency.
具体的，参见图1、2所示，一种线性振动马达，所述马达包括：定子组件、振子组件以及弹性支撑件5；其中所述定子组件包括具有容纳腔的壳体1，位于所述容纳腔内且与所述壳体1结合固定的磁体2，所述磁体2包括中空部21，所述中空部21沿振子组件振动方向延伸。图示实施方式中，本发明所述壳体1包括底部具有开口的第一壳体11，以及结合固定在所述开口处的第二壳体12；第一壳体11与第二壳体12构成具有容纳腔的壳体1。另外本发明中所述磁体2可为分段的或者连续的环状结构，本发明对此并不加以限制。Specifically, referring to FIGS. 1 and 2, a linear vibration motor includes: a stator assembly, a vibrator assembly, and an elastic support member 5; wherein the stator assembly includes a housing 1 having a receiving cavity, A magnet 2 is housed in the chamber and fixed in combination with the housing 1, and the magnet 2 includes a hollow portion 21 that extends in the vibration direction of the vibrator assembly. In the illustrated embodiment, the housing 1 of the present invention includes a first housing 11 having an opening at the bottom, and a second housing 12 coupled to the opening; the first housing 11 and the second housing 12 A housing 1 having a receiving chamber is formed. In addition, the magnet 2 in the present invention may be a segmented or continuous annular structure, which is not limited in the present invention.
所述振子组件包括设置在导磁板6上的线圈3和围绕在所述线圈3***的且与线圈同轴设置质量块4，振子组件振动时，所述线圈3随振子组件振动并***所述磁体2的中空部21；在图示结构中，所述线圈3及质量块4结合固定在所述导磁板6的上表面上，且线圈3与质量块4之间形成有供磁体2***的间隙7；并且本发明中所述导磁板6还包括由所述导磁板6板体一体弯折构成的凸起部61，该凸起部61***在所述线圈3内。优选地，所述凸起部61包括侧壁611、位于所述侧壁611顶端的顶壁612，以及位于所述凸起部61底端的开口613；所述侧壁611及顶壁612共同围纳形成所述凸起部61的内腔614。本发明中，振子组件主要由固定在导磁板6上的线圈3及质量块4组成，由于导磁板6凸起部61可通过导磁板6的弯折一体加工成型，其所处位置的精度易于控制，进而利用本发明中导磁板6上的凸起部61的结构设置，在振子组件装配过程中线圈3可直接套设在凸起部61上并结合固定，二者之间固定强度高，且便于提高振子组件中线圈3与导磁板6之间的整体的同轴装配精度，方便了质量块4的后续装配，避免了振子组件在振动过程中出现偏振，简化了振子组件的装配过程，省去了外部定位工装。此外，导磁板6上的凸起部61也可对呈环状结构的磁体2的磁力线进行引导，以增加线圈3所处位置的磁场强度，增大马达的电磁驱动力。The vibrator assembly includes a coil 3 disposed on the magnetic conductive plate 6 and a mass 4 disposed around the periphery of the coil 3 and coaxial with the coil. When the vibrator assembly vibrates, the coil 3 vibrates and inserts with the vibrator assembly The hollow portion 21 of the magnet 2; in the illustrated structure, the coil 3 and the mass 4 are fixedly coupled to the upper surface of the magnetic conductive plate 6, and a magnet 2 is formed between the coil 3 and the mass 4. The inserted gap 7; and the magnetic conductive plate 6 of the present invention further includes a convex portion 61 which is integrally bent by the plate body of the magnetic conductive plate 6, and the convex portion 61 is inserted into the coil 3. Preferably, the convex portion 61 includes a side wall 611, a top wall 612 at the top end of the side wall 611, and an opening 613 at the bottom end of the convex portion 61; the side wall 611 and the top wall 612 are surrounded by The inner cavity 614 of the raised portion 61 is formed. In the present invention, the vibrator assembly is mainly composed of a coil 3 and a mass 4 fixed on the magnetic conductive plate 6, and since the convex portion 61 of the magnetic conductive plate 6 can be integrally formed by bending of the magnetic conductive plate 6, the position thereof is located. The precision is easy to control, and the structure of the boss portion 61 on the magnetic conductive plate 6 of the present invention is utilized. During the assembly of the vibrator assembly, the coil 3 can be directly sleeved on the boss portion 61 and fixed between the two. The fixing strength is high, and the overall coaxial assembly precision between the coil 3 and the magnetic conductive plate 6 in the vibrator assembly is improved, the subsequent assembly of the mass 4 is facilitated, the polarization of the vibrator assembly during the vibration process is avoided, and the vibrator is simplified. The assembly process of the components eliminates the need for external positioning tools. Further, the convex portion 61 on the magnetic conductive plate 6 can also guide the magnetic lines of force of the magnet 2 having an annular structure to increase the magnetic field strength at the position where the coil 3 is located, and increase the electromagnetic driving force of the motor.
与导磁板6对应的，本发明所述弹性支撑件5结合固定在所述导磁板6的下表面与第二壳体12的内侧表面之间，且配置为将所述振子组件悬置在所述壳体1的容纳腔内。需要说明的是，本发明中第一壳体11与第二壳体12均可由具有导磁性的材料制成，这样便于闭合磁体的磁力线，使磁体2的磁性作用最大化发挥，以提升马达的电磁驱动力。作为本发明一种具体的实施方式，如图1所示的壳体1结构呈圆型结构，显然所述壳体也可呈非圆形 截面的结构，例如可以是长方体型、圆角长方体型等。Corresponding to the magnetic conductive plate 6, the elastic support member 5 of the present invention is fixedly fixed between the lower surface of the magnetic conductive plate 6 and the inner side surface of the second casing 12, and is configured to suspend the vibrator assembly In the housing cavity of the housing 1. It should be noted that, in the present invention, both the first housing 11 and the second housing 12 can be made of a material having magnetic permeability, so that the magnetic lines of force of the magnet can be closed, and the magnetic action of the magnet 2 can be maximized to enhance the motor. Electromagnetic driving force. As a specific embodiment of the present invention, the housing 1 shown in FIG. 1 has a circular structure, and it is obvious that the housing may also be non-circular. The structure of the cross section may be, for example, a rectangular parallelepiped shape, a rounded rectangular parallelepiped shape, or the like.
进一步的，本实施方式中所述线性振动马达还包括使线圈3能够与外部设备电性连接印刷电路板8；所述印刷电路板8包括：结合固定在所述导磁板6的下表面，且与线圈3电性连接的固定部81；位于所述壳体1外，且与所述第二壳体12的上表面结合固定的用于与外部设备电性连接的连接部82；及将所述固定部81与所述连接部82连接成整体结构的柔性连接部83。其中所述柔性连接部83位于弹性支撑件5弹性臂的下方，当振子组件振动时，弹性臂受压或者受拉变形时，柔性连接部83随之上下运动，避免了柔性连接部83与弹性臂之间发生碰撞，影响振动马达振动性能的问题。且当弹性臂受压变形到极限位置时，可通过第二壳体上表面所设阻尼件的限位，以防止弹性臂挤压到柔性连接部，使柔性连接部损坏。本领域技术人员可以理解的是，马达中质量块和/或导磁板上应当设有连接线圈和印刷电路板的导线过孔，以实现线圈能够与外部设备电性连接，但对于过孔的具***置及结构形态，本发明在此不作限制。Further, the linear vibration motor of the present embodiment further includes a circuit 3 for electrically connecting the coil 3 to an external device; the printed circuit board 8 includes: a lower surface of the magnetic conductive plate 6 And a fixing portion 81 electrically connected to the coil 3; a connecting portion 82 located outside the casing 1 and fixedly coupled to the upper surface of the second casing 12 for electrically connecting with an external device; The fixing portion 81 and the connecting portion 82 are connected to a flexible connecting portion 83 of a unitary structure. The flexible connecting portion 83 is located below the elastic arm of the elastic support member 5. When the vibrator assembly is vibrated, when the elastic arm is pressed or deformed, the flexible connecting portion 83 moves up and down, thereby avoiding the flexible connecting portion 83 and the elastic portion. Collisions between the arms affect the vibration performance of the vibration motor. When the elastic arm is deformed to the extreme position by pressure, the limit of the damping member provided on the upper surface of the second casing can be prevented to prevent the elastic arm from being pressed to the flexible connecting portion to damage the flexible connecting portion. It will be understood by those skilled in the art that the mass and/or the magnetic conductive plate in the motor should be provided with wire vias connecting the coil and the printed circuit board to enable the coil to be electrically connected to the external device, but for the via hole. The specific position and structural form of the present invention are not limited herein.
本发明中与第一壳体11的顶壁内侧表面结合固定的呈环状结构的磁体2作为定子组件，线圈3作为振子组件的部分随振子组件振动***所述磁体2的中空部21，该种作为定子的呈环状结构的磁体2及其与作为振子的线圈3的配置方式，与现有的振动马达中所使用的柱状实芯结构磁体相比，由于现有柱状实芯磁体的磁力线是从中轴线向外辐射分散的，而本发明的呈环形结构磁体的磁力线是向中轴线上聚集的，因此设置在呈环形结构磁体中轴线上的线圈位置所处的磁场强度高于套设在柱状实芯磁体***的线圈处；并且本发明中线圈设置于呈环形结构磁体的内部空间，其直径尺寸可以做的比较小，故线圈有效圈数会显著高于设置于柱状实芯磁体***的大直径线圈的有效圈数。In the present invention, the magnet 2 having an annular structure fixed in combination with the inner surface of the top wall of the first casing 11 is used as a stator assembly, and the coil 3 is inserted as a part of the vibrator assembly into the hollow portion 21 of the magnet 2 with the vibrator assembly. The magnet 2 as a stator having a ring structure and its arrangement with the coil 3 as a vibrator are compared with the columnar solid core magnet used in the conventional vibration motor, due to the magnetic field lines of the existing cylindrical solid magnet. The radiation is dispersed outward from the central axis, and the magnetic lines of the ring-shaped structural magnet of the present invention are concentrated on the central axis, so that the magnetic field strength of the coil disposed on the central axis of the magnet of the annular structure is higher than that of the magnetic field. The coil of the periphery of the cylindrical solid core magnet; and the coil of the present invention is disposed in the inner space of the magnet having the annular structure, and the diameter of the coil can be made smaller, so the effective number of turns of the coil is significantly higher than that of the outer core of the cylindrical solid magnet. The number of effective turns of the large diameter coil.
另外，本发明中导磁板6设置在所述磁体2下方，故包含磁体2的定子组件对振子组件存在一个较大的吸引力，该吸引力在马达断电以后可为振子组件提供一定的振动阻力，简单来说就是相当于给振子组件提供了一个刹车，能够使马达中的振子组件快速停止振动，即“缩短马达振动下降时间”。进一步地，当线圈3内部包含中心磁芯100时，增大了磁体2磁力线的利用率，故增大了马达的电磁驱动力，从而加速了马达的启动过程，即“缩短马达振动上升时间”。本发明所提供的线性振动马达与现有马达相比优势在于，当马达处于振动平衡位置时，振子组件与定子组件相互吸引力较大，可降低马达无电流或弱电流状态下的微小振动，使马达可快速恢复到静止状态。且 本发明所提供的线性振动马达结构，电磁驱动力大，可缩短马达振动上升时间；并且由于马达处于平衡位置静磁力大，可进一步缩短马达振动下降时间，故本发明能够从整体上提高马达响应速度。综上，本发明所提供的线性振动马达，可最大化利用磁体的磁性，提升线圈对于磁体磁力线的利用效率，提升了马达的电磁驱动力，且驱动力的增大使得马达有效频宽增大，便于双频或多频谐振频率的应用，并满足多频点下对马达所提供振感的要求，提高了马达的触觉体验，并从整体上提高了线性振动马达综合性能。In addition, in the present invention, the magnetic conductive plate 6 is disposed under the magnet 2, so that the stator assembly including the magnet 2 has a large attraction force to the vibrator assembly, and the attractive force can provide a certain component to the vibrator assembly after the motor is powered off. The vibration resistance, in simple terms, is equivalent to providing a brake to the vibrator assembly, which enables the vibrator assembly in the motor to quickly stop vibrating, ie "shortening the motor vibration drop time". Further, when the inner core 100 is included in the coil 3, the utilization of the magnetic line of the magnet 2 is increased, so that the electromagnetic driving force of the motor is increased, thereby accelerating the starting process of the motor, that is, "shortening the motor vibration rise time" . The linear vibration motor provided by the present invention has an advantage over the prior art in that when the motor is in the vibration balance position, the vibrator assembly and the stator assembly are mutually attractive, and the micro vibration of the motor without current or weak current can be reduced. Allows the motor to quickly return to a standstill. And The linear vibration motor structure provided by the invention has large electromagnetic driving force, can shorten the motor vibration rising time; and the motor static pressure is large in the equilibrium position, the motor vibration falling time can be further shortened, so the invention can improve the motor response as a whole. speed. In summary, the linear vibration motor provided by the present invention can maximize the magnetic properties of the magnet, improve the utilization efficiency of the coil for the magnetic field lines of the magnet, improve the electromagnetic driving force of the motor, and increase the driving force to increase the effective bandwidth of the motor. It is convenient for dual-frequency or multi-frequency resonant frequency applications, and meets the requirements of the vibration of the motor under multi-frequency points, improves the tactile experience of the motor, and improves the overall performance of the linear vibration motor as a whole.
参照图3，针对振子组件与磁体的配置结构，图3示出本发明第二实施方式所提供线性振动马达中振子组件与磁体的配置结构示意图。其中，所述振子组件还包括结合固定在所述凸起部61顶壁612上表面的且延伸至所述线圈3上方的导磁轭9，所述导磁轭9包括本体部91，所述本体部91呈与所述振子组件振动方向相垂直的方向设置，且本体部91的外径大于所述线圈3的内径；进一步地，所述导磁轭9的顶部上表面与第一壳体11顶壁的内侧表面之间具有供振子组件振动的振动空间。与第一实施方式所提供振子组件结构类似，本实施方式中，导磁轭9可为磁体磁力线提供导向路径及方向，可进一步增加呈环状结构的磁体2的磁力线向中轴线聚集的效果，以增加线圈3所处位置的磁场强度，增大马达的电磁驱动力。进一步地，所述导磁轭9的周向外侧边缘可位于所述线圈3的周向外侧边缘的内侧、外侧或者齐平设置。在保证导磁轭9的周向外侧边缘与磁体2之间不发生干涉的情况下，优选地，所述导磁轭9的周向外侧边缘位于所述线圈3的周向外侧边缘的外侧，使其尽可能的为磁力线提供导向作用。Referring to FIG. 3, for the arrangement configuration of the vibrator assembly and the magnet, FIG. 3 is a schematic view showing the arrangement structure of the vibrator assembly and the magnet in the linear vibration motor according to the second embodiment of the present invention. Wherein, the vibrator assembly further includes a yoke 9 coupled to the upper surface of the top wall 612 of the boss 61 and extending above the coil 3, the yoke 9 including a body portion 91, The body portion 91 is disposed in a direction perpendicular to the vibration direction of the vibrator assembly, and the outer diameter of the body portion 91 is larger than the inner diameter of the coil 3; further, the top upper surface of the yoke 9 and the first housing 11 There is a vibration space between the inner side surfaces of the top wall for vibration of the vibrator assembly. Similar to the structure of the vibrator assembly provided in the first embodiment, in the present embodiment, the yoke 9 can provide a guiding path and a direction for the magnetic field lines of the magnet, and can further increase the effect of the magnetic lines of the magnet 2 having the annular structure on the central axis. The electromagnetic driving force of the motor is increased by increasing the strength of the magnetic field at the position where the coil 3 is located. Further, the circumferential outer edge of the yoke 9 may be located on the inner side, the outer side or the flush side of the circumferential outer edge of the coil 3. In the case where the interference between the circumferential outer edge of the yoke 9 and the magnet 2 is ensured, preferably, the circumferential outer edge of the yoke 9 is located outside the circumferential outer edge of the coil 3, Make it as possible to guide the magnetic lines of force.
另外，在保证导磁轭9与线圈3之间相对绝缘的条件下，为了方便导磁轭9与线圈3之间的同轴精确装配，及简化导磁轭9的装配固定难度，优选地，所述导磁轭9的下表面与线圈3的顶部上表面之间留有缝隙。该实施方式所具有的其它优势与第一实施方式所提供马达相对现有技术的优势相同，在此不再赘述。In addition, in order to ensure the coaxial and precise assembly between the yoke 9 and the coil 3 under the condition of ensuring relative insulation between the yoke 9 and the coil 3, and simplifying the assembly and fixing difficulty of the yoke 9, it is preferable that A gap is left between the lower surface of the yoke 9 and the top upper surface of the coil 3. The other advantages of this embodiment are the same as those of the prior art provided by the first embodiment, and are not described herein again.
参照图4，针对图3所示振子组件与磁体的配置结构，作为进一步改进的第三实施方式，为了便于导磁轭9与导磁板6凸起部61顶壁612上表面的结合固定，且增加二者之间的固定强度，提高马达振子组件的稳定性及可靠性，所述导磁轭9与导磁板6凸起部61顶壁612上表面之间可采用激光焊接的方式连接固定，优选地，所述导磁轭9还包括有与所述凸起部61顶壁612对应的由导磁轭9本体部91顶部上表面向内凹陷形成的熔接槽92。熔接槽92的设置可对导磁轭9上与凸起部61顶壁612对应的部位进行减薄， 方便二者之间的激光焊接。该第三实施方式所具有的其它优势与上述任一实施方式所提供马达相对现有技术的优势相同，在此不再赘述。Referring to FIG. 4, with respect to the arrangement structure of the vibrator assembly and the magnet shown in FIG. 3, as a third embodiment of the further improvement, in order to facilitate the fixation of the upper surface of the top wall 612 of the convex portion 61 of the magnetic conductive plate 6 and the convex portion 61, And the fixing strength between the two is increased to improve the stability and reliability of the motor vibrator assembly. The yoke 9 and the upper surface of the top wall 612 of the convex portion 61 of the magnetic conductive plate 6 may be connected by laser welding. Preferably, the yoke 9 further includes a splicing groove 92 formed inwardly from the top surface of the main portion 91 of the yoke 9 corresponding to the top wall 612 of the boss portion 61. The arrangement of the welding groove 92 can reduce the portion of the yoke 9 corresponding to the top wall 612 of the boss 61. It is convenient for laser welding between the two. The other advantages of the third embodiment are the same as those of the prior art provided by any of the above embodiments, and are not described herein again.
参照图5，针对图3所示振子组件与磁体的配置结构，作为进一步改进的第四实施方式，本实施方式中，所述导磁轭9还包括由所述本体部91顶部上表面沿振子组件振动方向向外延伸出的上端部93，所述本体部91和上端部93为一体结构。与第二实施方式所提供导磁轭结构类似，本实施方式中，上端部93可用于为磁力线提供导向路径及方向，便于磁力线在线圈处聚集，以提高线圈所处位置的磁场强度。其中根据导磁效果的不同，所述上端部93直径可在大于、小于或者等于所述凸起部61的直径的范围内根据实际的需要进行选择。该第四实施方式所具有的其它优势与上述任一实施方式所提供马达相对现有技术的优势相同，在此不再赘述。Referring to FIG. 5, with respect to the arrangement structure of the vibrator assembly and the magnet shown in FIG. 3, as a fourth embodiment of the further improvement, in the embodiment, the yoke 9 further includes an upper surface along the top surface of the main body portion 91 along the vibrator The upper end portion 93 of the component vibrating outwardly extends, and the body portion 91 and the upper end portion 93 are of unitary structure. Similar to the magnetic yoke structure provided by the second embodiment, in the present embodiment, the upper end portion 93 can be used to provide a guiding path and a direction for the magnetic lines of force, so that the magnetic lines of force are concentrated at the coil to increase the strength of the magnetic field at the position where the coil is located. The diameter of the upper end portion 93 may be selected according to actual needs within a range larger than, smaller than, or equal to the diameter of the convex portion 61. The other advantages of the fourth embodiment are the same as those of the prior art provided by any of the above embodiments, and are not described herein again.
参照图6，针对图1、2所示第一实施方式所提供的振子组件与磁体的配置结构，作为进一步改进的第五实施方式，本实施方式中，优选地，所述振子组件还包括***并结合固定在所述凸起部61的内腔614中的中心磁芯100。中心磁芯100可选用导磁性能更好材料制成，其可进一步增加线圈3内部的导磁效果，提升线圈3对于磁体磁力线的利用效率，提升马达的电磁驱动力，以实现本发明的发明目的。Referring to FIG. 6 , the configuration of the vibrator assembly and the magnet provided by the first embodiment shown in FIG. 1 and FIG. 2 is a fifth embodiment of the present invention. In the embodiment, preferably, the vibrator assembly further includes an insertion. And incorporating the center core 100 fixed in the inner cavity 614 of the boss 61. The central core 100 can be made of a material with better magnetic permeability, which can further increase the magnetic permeability effect inside the coil 3, improve the utilization efficiency of the coil 3 for the magnetic field lines of the magnet, and enhance the electromagnetic driving force of the motor to realize the invention of the present invention. purpose.
参照图7，针对图3所示第二实施方式所提供的振子组件与磁体的配置结构，作为进一步改进的第六实施方式，本实施方式中，优选地，所述振子组件还包括***并结合固定在所述凸起部61的内腔614中的中心磁芯100。所述中心磁芯100的作用及效果与上述第五实施方式所述的中心磁芯的作用及效果相同，在此不再赘述。Referring to FIG. 7 , for the arrangement structure of the vibrator assembly and the magnet provided in the second embodiment shown in FIG. 3 , as a sixth embodiment of the further improvement, in the embodiment, preferably, the vibrator assembly further includes an insertion and a combination. The center core 100 is fixed in the inner cavity 614 of the boss 61. The function and effect of the center core 100 are the same as those of the center core described in the fifth embodiment, and will not be described again.
此外，参照图8，针对图4所示第三实施方式所提供的振子组件与磁体的配置结构，作为进一步改进的第七实施方式，本实施方式中，也同样优选地，所述振子组件还包括***并结合固定在所述凸起部61的内腔614中的中心磁芯100。In addition, referring to FIG. 8, the arrangement structure of the vibrator assembly and the magnet provided in the third embodiment shown in FIG. 4 is further improved as the seventh embodiment. In this embodiment, it is also preferable that the vibrator assembly is further A central core 100 that is inserted and bonded in the inner cavity 614 of the boss 61 is included.
另外，参照图9，针对图5所示第四实施方式所提供的振子组件与磁体的配置结构，作为进一步改进的第八实施方式，本实施方式中，也同样优选地，所述振子组件还包括***并结合固定在所述凸起部61的内腔614中的中心磁芯100。In addition, referring to FIG. 9, the arrangement structure of the vibrator assembly and the magnet provided in the fourth embodiment shown in FIG. 5 is further improved as the eighth embodiment. In the present embodiment, it is also preferable that the vibrator assembly is further A central core 100 that is inserted and bonded in the inner cavity 614 of the boss 61 is included.
第七实施方式及第八实施方式中所述中心磁芯100的作用及效果与上述第五实施方式或第六实施方式所述的中心磁芯100的作用及效果相同，在此不再赘述。 The functions and effects of the center core 100 in the seventh embodiment and the eighth embodiment are the same as those of the center core 100 according to the fifth embodiment or the sixth embodiment, and will not be described again.
综上所述，本发明所提供的线性振动马达结构，可最大化利用磁体的磁性，提升线圈对于磁体磁力线的利用效率，提升马达的电磁驱动力，此外本发明还特别针对马达中振子组件的结构进行了改进，降低了马达制程工艺难度，提高了整体装配效率，还可根据实际情况增设导磁性能更好的中心磁芯，更加利于进一步提升线圈对于磁体磁力线的利用效率。In summary, the linear vibration motor structure provided by the present invention can maximize the magnetic properties of the magnet, improve the utilization efficiency of the coil for the magnetic field lines of the magnet, and improve the electromagnetic driving force of the motor. In addition, the present invention is particularly directed to the vibrator assembly of the motor. The structure has been improved, the difficulty of the motor manufacturing process is reduced, the overall assembly efficiency is improved, and the central magnetic core with better magnetic permeability can be added according to the actual situation, which is more conducive to further improving the utilization efficiency of the coil for the magnet magnetic line.
显然，本发明的上述实施例仅仅是为清楚地说明本发明所作的举例，而并非是对本发明的实施方式的限定，对于所属领域的普通技术人员来说，在上述说明的基础上还可以做出其它不同形式的变化或变动，这里无法对所有的实施方式予以穷举，凡是属于本发明的技术方案所引伸出的显而易见的变化或变动仍处于本发明的保护范围之列。 It is apparent that the above-described embodiments of the present invention are merely illustrative of the present invention and are not intended to limit the embodiments of the present invention, and those skilled in the art can also make the above description. It is to be understood that various changes and modifications may be made without departing from the spirit and scope of the invention.

Claims (10)

  1. 一种线性振动马达，其特征在于，所述马达包括：A linear vibration motor, characterized in that the motor comprises:
    定子组件，所述定子组件包括具有容纳腔的壳体，位于所述容纳腔内且与所述壳体结合固定的磁体，所述磁体包括中空部；a stator assembly, the stator assembly including a housing having a receiving cavity, a magnet disposed within the receiving cavity and coupled to the housing, the magnet including a hollow portion;
    振子组件，所述振子组件包括设置在导磁板上的线圈和围绕在所述线圈***的质量块；所述中空部沿振子组件振动方向延伸，所述振子组件振动时，所述线圈随振子组件振动并***所述磁体的中空部；a vibrator assembly including a coil disposed on a magnetically permeable plate and a mass surrounding the periphery of the coil; the hollow portion extending in a vibration direction of the vibrator assembly, the coil accompanying the vibrator when the vibrator assembly vibrates The assembly vibrates and is inserted into the hollow portion of the magnet;
    弹性支撑件，配置为将所述振子组件悬置在所述壳体的容纳腔内；An elastic support member configured to suspend the vibrator assembly in a receiving cavity of the housing;
    所述导磁板还包括由所述导磁板板体一体弯折构成的凸起部，该凸起部***在所述线圈内。The magnetic conductive plate further includes a convex portion formed by integrally bending the magnetic conductive plate body, and the convex portion is inserted into the coil.
  2. 根据权利要求1所述的线性振动马达，其特征在于，所述凸起部包括侧壁、位于所述侧壁顶端的顶壁，以及位于所述凸起部底端的开口；所述侧壁及顶壁共同围纳形成所述凸起部的内腔。A linear vibration motor according to claim 1, wherein said convex portion includes a side wall, a top wall at a top end of said side wall, and an opening at a bottom end of said convex portion; said side wall and The top wall collectively surrounds the inner cavity forming the raised portion.
  3. 根据权利要求2所述的线性振动马达，其特征在于，所述振子组件还包括结合固定在所述凸起部顶壁上表面的且延伸至所述线圈上方的导磁轭。A linear vibration motor according to claim 2, wherein said vibrator assembly further comprises a yoke conjugate fixed to an upper surface of said top wall of said boss and extending above said coil.
  4. 根据权利要求3所述的线性振动马达，其特征在于，所述导磁轭包括本体部，所述本体部呈与所述振子组件振动方向相垂直的方向设置，且该本体部的外径大于所述线圈的内径。The linear vibration motor according to claim 3, wherein the yoke includes a body portion, the body portion is disposed in a direction perpendicular to a vibration direction of the vibrator assembly, and an outer diameter of the body portion is larger than The inner diameter of the coil.
  5. 根据权利要求4所述的线性振动马达，其特征在于，所述导磁轭还包括有与所述凸起部顶壁对应的由本体部顶部上表面向内凹陷形成的熔接槽。The linear vibration motor according to claim 4, wherein the yoke further comprises a splicing groove formed inwardly from the top surface of the top portion of the body portion corresponding to the top wall of the boss portion.
  6. 根据权利要求4所述的线性振动马达，其特征在于，所述导磁轭还包括由所述本体部顶部上表面沿振子组件振动方向向外延伸出的上端部。The linear vibration motor according to claim 4, wherein said yoke further comprises an upper end portion extending outward from a top surface of said body portion in a vibration direction of said vibrator assembly.
  7. 根据权利要求2至6任意一项权利要求所述的线性振动马达，其特征在于，所述振子组件还包括***并结合固定在所述凸起部的内腔中的中心磁芯。A linear vibration motor according to any one of claims 2 to 6, wherein the vibrator assembly further includes a center core inserted and coupled in the inner cavity of the boss.
  8. 根据权利要求3所述的线性振动马达，其特征在于，所述导磁轭的顶部上表面与壳体顶壁的内侧表面之间具有供振子组件振动的振动空间。The linear vibration motor according to claim 3, wherein a vibration space for vibrating the vibrator assembly is provided between the top upper surface of the yoke and the inner side surface of the top wall of the casing.
  9. 根据权利要求1所述的线性振动马达，其特征在于，所述线圈及质量块结合固定在所述导磁板的上表面，所述线圈与质量块之间形成有供磁体***的间隙；所述弹性支撑件结合固定在所述导磁板的下表面与壳体底壁的 内侧表面之间，且配置为将所述振子组件悬置在所述壳体的容纳腔内。The linear vibration motor according to claim 1, wherein the coil and the mass are fixedly coupled to an upper surface of the magnetic conductive plate, and a gap for inserting a magnet is formed between the coil and the mass; The elastic support member is fixedly coupled to the lower surface of the magnetic conductive plate and the bottom wall of the housing Between the inner side surfaces and configured to suspend the vibrator assembly within the receiving cavity of the housing.
  10. 根据权利要求1所述的线性振动马达，其特征在于，所述线性振动马达还包括使线圈能够与外部设备电性连接印刷电路板；所述印刷电路板包括：结合固定在所述导磁板上的且与线圈电性连接的固定部；位于所述壳体外的用于与外部设备电性连接的连接部；及将所述固定部与所述连接部连接成整体结构的柔性连接部。 The linear vibration motor according to claim 1, wherein said linear vibration motor further comprises: enabling a coil to be electrically connected to an external device to a printed circuit board; said printed circuit board comprising: being bonded to said magnetic conductive plate a fixing portion electrically connected to the coil; a connecting portion outside the casing for electrically connecting to the external device; and a flexible connecting portion connecting the fixing portion and the connecting portion to an integral structure.
PCT/CN2017/112165 2017-08-11 2017-11-21 Linear vibration motor WO2019029048A1 (en)

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Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN207069866U (en) * 2017-08-11 2018-03-02 歌尔科技有限公司 Linear vibration motor
CN207069861U (en) * 2017-08-11 2018-03-02 歌尔科技有限公司 A kind of linear vibration motor
CN207069865U (en) * 2017-08-11 2018-03-02 歌尔科技有限公司 Linear vibration motor
CN107276361A (en) * 2017-08-11 2017-10-20 歌尔股份有限公司 A kind of linear vibration motor
CN107257190B (en) * 2017-08-11 2020-06-02 歌尔股份有限公司 Linear vibration motor
CN209057363U (en) * 2018-12-24 2019-07-02 歌尔科技有限公司 Screen vibration-sound generating device and electronic product
CN115002249B (en) * 2021-10-30 2023-03-28 荣耀终端有限公司 Vibrating motor and terminal equipment

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101882854A (en) * 2009-05-04 2010-11-10 三星电机株式会社 Linear vibrator
KR20120020485A (en) * 2010-08-30 2012-03-08 주식회사 대림음향 Linear type vibration motor and manufacturing method thereof
CN102832778A (en) * 2011-06-16 2012-12-19 磁化电子株式会社 Linear vibration generating apparatus
CN102916553A (en) * 2011-08-05 2013-02-06 三星电机株式会社 Linear vibration device
CN103997181A (en) * 2013-02-18 2014-08-20 日本电产科宝株式会社 Linear vibration actuator and mobile communication device and gaming device including the same
CN105471217A (en) * 2014-09-30 2016-04-06 三美电机株式会社 Linear actuator, electric brush, electric cutting machine and electric air pump
CN107257190A (en) * 2017-08-11 2017-10-17 歌尔股份有限公司 Linear vibration motor
CN207069864U (en) * 2017-08-11 2018-03-02 歌尔股份有限公司 Linear vibration motor

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100934584B1 (en) * 2009-06-16 2009-12-31 유성정밀 주식회사 Linear vibrator
KR101452737B1 (en) * 2012-11-07 2014-10-23 (주)파트론 Linear motor
CN103872875B (en) * 2012-12-12 2017-03-01 Mplus株式会社 Linear electric machine
KR101547572B1 (en) * 2013-11-07 2015-08-27 자화전자(주) Linear vibration generating device
CN203840178U (en) * 2014-03-06 2014-09-17 三星高新电机（天津）有限公司 Linear vibration motor employing foam for locating magnet
KR20170055797A (en) * 2015-11-12 2017-05-22 자화전자(주) Linear vibration generating device
CN205725403U (en) * 2016-04-28 2016-11-23 绵阳博凡科技有限公司 A kind of linear vibration electric motor
KR101695828B1 (en) * 2016-08-18 2017-01-13 자화전자(주) Apparatus for generating linear vibration with damper and damper
KR101964734B1 (en) * 2016-12-21 2019-04-02 자화전자(주) Spring and linear vibration motor therewith
CN207069868U (en) * 2017-08-11 2018-03-02 歌尔股份有限公司 Linear vibration motor

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101882854A (en) * 2009-05-04 2010-11-10 三星电机株式会社 Linear vibrator
KR20120020485A (en) * 2010-08-30 2012-03-08 주식회사 대림음향 Linear type vibration motor and manufacturing method thereof
CN102832778A (en) * 2011-06-16 2012-12-19 磁化电子株式会社 Linear vibration generating apparatus
CN102916553A (en) * 2011-08-05 2013-02-06 三星电机株式会社 Linear vibration device
CN103997181A (en) * 2013-02-18 2014-08-20 日本电产科宝株式会社 Linear vibration actuator and mobile communication device and gaming device including the same
CN105471217A (en) * 2014-09-30 2016-04-06 三美电机株式会社 Linear actuator, electric brush, electric cutting machine and electric air pump
CN107257190A (en) * 2017-08-11 2017-10-17 歌尔股份有限公司 Linear vibration motor
CN207069864U (en) * 2017-08-11 2018-03-02 歌尔股份有限公司 Linear vibration motor

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