WO2020140553A1 - 线性振动电机 - Google Patents

线性振动电机 Download PDF

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Publication number
WO2020140553A1
WO2020140553A1 PCT/CN2019/111100 CN2019111100W WO2020140553A1 WO 2020140553 A1 WO2020140553 A1 WO 2020140553A1 CN 2019111100 W CN2019111100 W CN 2019111100W WO 2020140553 A1 WO2020140553 A1 WO 2020140553A1
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WO
WIPO (PCT)
Prior art keywords
fixed
magnetic steel
storage space
bracket
linear vibration
Prior art date
Application number
PCT/CN2019/111100
Other languages
English (en)
French (fr)
Inventor
凌芳华
陶锋
浦晓峰
Original Assignee
瑞声声学科技(深圳)有限公司
瑞声科技(新加坡)有限公司
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Publication date
Application filed by 瑞声声学科技(深圳)有限公司, 瑞声科技(新加坡)有限公司 filed Critical 瑞声声学科技(深圳)有限公司
Publication of WO2020140553A1 publication Critical patent/WO2020140553A1/zh

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K33/00—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
    • B06B1/04—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with electromagnetism
    • B06B1/045—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with electromagnetism using vibrating magnet, armature or coil system
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/34—Reciprocating, oscillating or vibrating parts of the magnetic circuit
    • 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
    • H02K33/16—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with polarised armatures moving in alternate directions by reversal or energisation of a single coil system
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
    • H02K41/02—Linear motors; Sectional motors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof

Definitions

  • the utility model relates to a vibration motor, in particular to a linear vibration motor used for portable consumer electronic products.
  • vibration motors for system feedback, such as mobile phone Call reminder, information reminder, navigation reminder, game machine vibration feedback, etc.
  • system feedback such as mobile phone Call reminder, information reminder, navigation reminder, game machine vibration feedback, etc.
  • a linear vibration motor in the related art includes a housing with a receiving space, a vibration unit placed in the receiving space, an elastic member that suspends the vibration unit in the receiving space, and is fixed to the housing And a coil assembly that drives the vibration unit to vibrate;
  • the vibration unit includes a bracket fixedly supported on the elastic member, masses respectively fixed on opposite sides of the bracket, and magnetic steel fixed on opposite sides of the bracket .
  • the purpose of the utility model is to provide a linear vibration motor with simple assembly and high assembly accuracy.
  • the present invention provides a linear vibration motor, which includes a housing with a first receiving space, a vibration unit placed in the first receiving space, and suspending the vibration unit in the An elastic member in the first receiving space and a coil assembly fixed to the housing and driving the vibration unit to vibrate, the vibration unit includes a bracket connected to the elastic member, and a mass and a magnet fixed to the bracket respectively Steel;
  • the bracket includes a top wall disposed perpendicular to the vibration direction of the vibration unit, a side wall bent and extending from the peripheral edge of the top wall, a through hole penetrating the top wall, and being bent by opposite sides of the through hole respectively Two partition walls extending folded;
  • the top wall and the side wall enclose a second storage space, and the two partition walls partition the second storage space into a main storage space opposite to the main storage space
  • Two auxiliary storage spaces on both sides, the main storage space and the through opening are arranged and communicated with each other;
  • the mass storage is fixed in the auxiliary storage space
  • the magnetic steel includes
  • the first magnetic steel includes two and is respectively attached and fixed to the two partition walls.
  • the bracket is rectangular, and the two partition walls are parallel to the short axis of the bracket.
  • the magnetic steel further includes two second magnetic steels accommodated in the main accommodating space, and the two second magnetic steels are respectively fixed on two opposite sides parallel to the long axis of the bracket wall.
  • the mass includes a mass body accommodated and fixed in the auxiliary storage space and a support wall bent from an end of the mass body away from the top wall and extending into the main storage space,
  • the first magnetic steel abuts and supports the support wall.
  • the housing includes a bottom plate and an upper cover provided on the bottom plate and surrounding the first receiving space; the elastic member is fixed inside the upper cover and suspends the vibration unit In the upper cover, the coil assembly is fixed to the bottom plate.
  • the coil assembly includes an iron core fixed to the bottom plate and a coil wound around the iron core.
  • the coil assembly extends into the main receiving space and is spaced from the magnetic steel.
  • the bracket is provided with the second storage space, and the two partition walls divide the second storage space into a main storage space and Two auxiliary storage spaces on opposite sides of the main storage space, the main storage space and the through opening are arranged and communicated with each other;
  • the mass block includes two and is respectively accommodated and fixed in the two auxiliary storage spaces,
  • the magnetic steel includes a first magnetic steel located in the main housing space, the first magnetic steel is attached to and fixed to the partition wall, and the coil assembly extends into the main housing space and is in contact with the magnetic Steel spacer.
  • the mass block is directly fixed and contained in the auxiliary storage space, which realizes accurate positioning of the mass block and the bracket, improves assembly accuracy, and saves the quality
  • the alignment work of the block and the bracket during assembly reduces the difficulty of assembly and makes the assembly simple.
  • Figure 1 is a perspective structural view of a linear vibration motor of the present invention
  • FIG. 2 is an exploded view of a part of the three-dimensional structure of the linear vibration motor of the present invention
  • Figure 3 is a cross-sectional view taken along line A-A in Figure 1;
  • the present invention provides a linear vibration motor 100 including a housing 1 having a first receiving space 10, a vibration unit 2, an elastic member 3 and a coil assembly 4.
  • the housing 1 includes a bottom plate 11 and an upper cover 12 that is disposed on the bottom plate 11 and surrounds the first receiving space 10 together.
  • the vibration unit 2 is placed in the first receiving space 10.
  • the vibration unit 2 is supported and suspended in the first receiving space 10 by the elastic member 3, and the coil assembly 4 is fixed to the housing 1 and drives the vibration unit 2 to vibrate.
  • the vibration unit 2 includes a bracket 21 fixedly supported by the elastic member 3, and a mass 22 and a magnetic steel 23 respectively fixed to the bracket 21.
  • the bracket 21 includes a top wall 211 disposed perpendicular to the vibration direction of the vibration unit 2, a side wall 212 bent and extending from the periphery of the top wall 211, a through hole 213 penetrating the top wall 211, and Two partition walls 214 that are respectively bent and extended on opposite sides of the through port 213; in this embodiment, the bracket 21 is rectangular as an example for development, and the two partition walls 214 are parallel to the short side of the bracket 21 axis.
  • the top wall 211 and the side wall 212 enclose a second storage space 20, and the two partition walls 214 divide the second storage space 20 into a main storage space 201 and two opposite sides of the main storage space 201
  • Two auxiliary storage spaces 202 on the side, the main storage space 201 and the through port 213 are arranged and communicate with each other;
  • the mass 21 includes two and is respectively accommodated and fixed in the two auxiliary storage spaces 202,
  • the magnetic steel 23 includes a first magnetic steel 231 located in the main accommodating space 201, the first magnetic steel 231 includes two and is respectively attached and fixed to the two partition walls 214, and the coil assembly 4 It extends into the main receiving space 201 and is spaced from the magnetic steel 23.
  • the position where the partition wall 214 is disposed is not limited to this, and it is also feasible that the partition wall 214 is disposed parallel to the long axis direction of the bracket 21.
  • the mass 22 is directly fixed and accommodated in the auxiliary storage space 202, which realizes accurate positioning of the mass 22 and the bracket 21, improves assembly accuracy, and saves
  • the alignment work when assembling the mass 22 and the bracket 21 reduces the difficulty of assembling and makes the assembling simple.
  • the mass 22 includes a mass body 221 accommodated and fixed in the sub-accommodating space 202 and a bend extending from an end of the mass body 221 away from the top wall 211 to the main housing In the support wall 222 in the space 201, the first magnetic steel 231 abuts and supports the support wall 222.
  • the support wall 222 directly fixes the first magnetic steel 231 in the assembly position, which realizes the precise positioning of the first magnetic steel 23 and the partition wall 214, and improves the assembly accuracy, and The alignment work between the first magnetic steel 231 and the partition wall 214 is omitted, which further reduces the assembly difficulty and further simplifies the assembly process; at the same time, the support wall 222 is the first magnetic steel 231 provides support, which makes the assembly of the first magnetic steel 231 and the bracket 21 more reliable, avoiding the phenomenon that the first magnetic steel 231 falls off during the vibration process, thereby making the linear vibration motor 100 vibrate High reliability.
  • the magnetic steel 23 in this embodiment further includes two second magnetic steels 232 accommodated in the main storage space 201, and two second magnetic steels 232 are respectively fixed to the two opposite side walls 212 parallel to the long axis of the bracket 21.
  • the arrangement of the second magnetic steel 232 enhances the strength of the magnetic field, so that the driving force generated between the coil assembly 4 and the magnetic steel 23 is stronger, thereby further improving the vibration performance of the linear vibration motor 100.
  • the elastic member 3 suspends the vibration unit 2 in the first receiving space 10. That is, one end of the elastic member 3 is fixed to the vibration unit 2 and one end is fixed to the housing 1, specifically, fixed in the upper cover 12 of the housing 1 and suspending the vibration unit 2 Inside the upper cover 12.
  • the coil assembly 4 is fixed to the housing 1 and drives the vibration unit 2 to vibrate; in this embodiment, the coil assembly 4 is fixed to the bottom plate 11.
  • the coil assembly 4 includes an iron core 41 fixed to the housing 1 and a coil 42 wound around the iron core 41.
  • the coil assembly 4 is specifically fixedly installed on the bottom plate 11, and is arranged at a distance from the two first magnets 23. After the coil 42 is energized, the iron core 41 forms a magnetic field and It interacts with the magnetic field of the first magnetic steel 23 to drive the vibrating unit 2 to reciprocate linearly, generating a vibration effect.
  • the bracket is provided with the second storage space, and the two partition walls divide the second storage space into a main storage space and Two auxiliary storage spaces on opposite sides of the main storage space, the main storage space and the through opening are arranged and communicated with each other;
  • the mass block includes two and is respectively accommodated and fixed in the two auxiliary storage spaces,
  • the magnetic steel includes a first magnetic steel located in the main housing space, the first magnetic steel is attached to and fixed to the partition wall, and the coil assembly extends into the main housing space and is in contact with the magnetic Steel spacer.
  • the mass block is directly fixed and contained in the auxiliary storage space, which realizes accurate positioning of the mass block and the bracket, improves assembly accuracy, and saves the quality
  • the alignment work of the block and the bracket during assembly reduces the difficulty of assembly and makes the assembly simple.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)

Abstract

一种线性振动电机（100），其包括具有第一收容空间（10）的壳体（1）、振动单元（2）、将振动单元（2）悬置于第一收容空间（10）内的弹性件（3）以及固定于壳体（1）的线圈组件（4），振动单元（2）包括与弹性件（3）连接的支架（21）、固定于支架（21）的质量块（22）以及磁钢（23）；支架（21）包括顶壁（211）、由顶壁（211）周缘弯折延伸的侧壁（212）、贯穿顶壁（211）的通口（213）以及由通口（213）弯折延伸的两个分隔壁（214）；顶壁（211）与侧壁（212）围成第二收容空间（20），两个分隔壁（214）将第二收容空间（20）分隔成主收容空间（201）和两个副收容空间（202），主收容空间（201）与通口（213）正对设置且连通；质量块（22）包括两个且分别收容固定于两个副收容空间（202）内，磁钢（23）包括位于主收容空间（201）内且固定于分隔壁（214）的第一磁钢（231），线圈组件（4）延伸至主收容空间（201）内且与磁钢（23）间隔。与相关技术相比，上述线性振动电机（100）装配简单且精度高。

Description

线性振动电机 技术领域
本实用新型涉及一种振动电机，尤其涉及一种用于便携式消费性电子产品的线性振动电机。
 背景技术
随着电子技术的发展，便携式消费性电子产品越来越受人们的追捧，如手机、掌上游戏机、导航装置或掌上多媒体娱乐设备等，一般都会用到振动电机来做***反馈，比如手机的来电提示、信息提示、导航提示、游戏机的振动反馈等。如此广泛的应用，就要求振动电机的性能高，稳定性好且使用寿命长。
相关技术中的线性振动电机，其包括具有收容空间的壳体、置于所述收容空间内的振动单元、将所述振动单元悬置于所述收容空间的弹性件以及固定于所述壳体并驱动所述振动单元振动的线圈组件；所述振动单元包括固定支撑于所述弹性件的支架、分别固定于所述支架相对两侧的质量块以及固定于所述支架相对两侧的磁钢。
 技术问题
然而，相关技术中，在装配所述磁钢的过程中，需要先对所述磁钢和所述支架进行对位工作，而对位工作容易产生对位的偏差，使得难以保证所述磁钢的所述支架之间的装配精度，而且使得装配难度高；另外，所述磁钢直接胶合于所述支架内侧，所述磁钢缺乏支撑，在振动过程中容易脱落，影响了所述线性振动电机振动的可靠性。
因此，实有必要提供一种新的线性振动电机来解决上述问题。
 技术解决方案
本实用新型的目的在于提供一种装配简单且装配精度高的线性振动电机。
为解决上述技术问题，本实用新型提供一种线性振动电机，其包括具有第一收容空间的壳体、置于所述第一收容空间内的振动单元、将所述振动单元悬置于所述第一收容空间的弹性件以及固定于所述壳体并驱动所述振动单元振动的线圈组件，所述振动单元包括与所述弹性件连接的支架以及分别固定于所述支架的质量块和磁钢；所述支架包括垂直所述振动单元振动方向设置的顶壁、由所述顶壁周缘弯折延伸的侧壁、贯穿所述顶壁的通口以及由所述通口相对两侧分别弯折延伸的两个分隔壁；所述顶壁与所述侧壁围成第二收容空间，两个所述分隔壁将所述第二收容空间分隔成主收容空间和位于所述主收容空间相对两侧的两个副收容空间，所述主收容空间与所述通口正对设置且连通；所述质量块收容固定于所述副收容空间内，所述磁钢包括位于所述主收容空间内的第一磁钢，所述第一磁钢贴设固定于所述分隔壁。
优选的，所述第一磁钢包括两个且分别贴设固定于两个所述分隔壁。
优选的，所述支架呈矩形，两个所述分隔壁平行于所述支架的短轴。
优选的，所述磁钢还包括收容于所述主收容空间内的两个第二磁钢，两个所述第二磁钢分别固定于平行于所述支架长轴的相对两个所述侧壁。
优选的，所述质量块包括收容固定于所述副收容空间内的质量块本体以及由所述质量块本体的远离所述顶壁的一端弯折延伸至所述主收容空间内的支撑壁，所述第一磁钢抵接支撑于所述支撑壁。
优选的，所述壳体包括底板以及盖设于所述底板并共同围成所述第一收容空间的上盖；所述弹性件固定于所述上盖内侧并将所述振动单元悬置于所述上盖内，所述线圈组件固定于所述底板。
优选的，所述线圈组件包括固定于所述底板的铁芯以及绕设于所述铁芯的线圈。
优选的，所述线圈组件延伸至所述主收容空间内且与所述磁钢间隔。
 有益效果
与相关技术相比，本实用新型提供的线性振动电机中，所述支架设置有所述第二收容空间，两个所述分隔壁将所述第二收容空间分隔成主收容空间和位于所述主收容空间相对两侧的两个副收容空间，所述主收容空间与所述通口正对设置且连通；所述质量块包括两个且分别收容固定于两个所述副收容空间内，所述磁钢包括位于所述主收容空间内的第一磁钢，所述第一磁钢贴设固定于所述分隔壁，所述线圈组件延伸至所述主收容空间内且与所述磁钢间隔。上述结构中，在装配时，所述质量块直接固定收容于所述副收容空间内，实现了所述质量块与所述支架的精确定位，提高了装配精度，而且省去了对所述质量块与所述支架装配时的对位工作，降低了装配难度，使得装配简单。
 附图说明
为了更清楚地说明本实用新型实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本实用新型的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其它的附图，其中：
图1为本实用新型线性振动电机的立体结构图；
图2为本实用新型线性振动电机的部分立体结构分解图；
图3为沿图1中A-A线的剖示图；
图4为本实用新型线性振动电机的部分结构装配图。
 本发明的实施方式
下面将结合本实用新型实施例中的附图，对本实用新型实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅是本实用新型的一部分实施例，而不是全部的实施例。基于本实用新型中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其它实施例，都属于本实用新型保护的范围。
请同时参阅图1~2所示，本实用新型提供了一种线性振动电机100，其包括具有第一收容空间10的壳体1、振动单元2、弹性件3以及线圈组件4。
所述壳体1包括底板11和盖设于所述底板11并共同围成所述第一收容空间10的上盖12。
请同时参阅图2~4所示，所述振动单元2置于所述第一收容空间10内。本实施方式中，所述振动单元2通过所述弹性件3支撑悬置于所述第一收容空间10内，所述线圈组件4固定于所述壳体1并驱动所述振动单元2振动。
具体的，所述振动单元2包括固定支撑于所述弹性件3的支架21以及分别固定于所述支架21的质量块22和磁钢23。
进一步的，所述支架21包括垂直所述振动单元2振动方向设置的顶壁211、由所述顶壁211周缘弯折延伸的侧壁212、贯穿所述顶壁211的通口213以及由所述通口213相对两侧分别弯折延伸的两个分隔壁214；本实施方式中，以所述支架21呈矩形为例展开说明，两个所述分隔壁214平行于所述支架21的短轴。
所述顶壁211与所述侧壁212围成第二收容空间20，两个所述分隔壁214将所述第二收容空间20分隔成主收容空间201和位于所述主收容空间201相对两侧的两个副收容空间202，所述主收容空间201与所述通口213正对设置且连通；所述质量块21包括两个且分别收容固定于两个所述副收容空间202内，所述磁钢23包括位于所述主收容空间201内的第一磁钢231，所述第一磁钢231包括两个且分别贴设固定于两个所述分隔壁214，所述线圈组件4延伸至所述主收容空间201内且与所述磁钢23间隔。
当然，所述分隔壁214设置的位置不限于此，所述分隔壁214平行于所述支架21的长轴方向设置也是可行的。
上述结构中，在装配时，所述质量块22直接固定收容于所述副收容空间202内，实现了所述质量块22与所述支架21的精确定位，提高了装配精度，而且省去了对所述质量块22与所述支架21装配时的对位工作，降低了装配难度，使得装配简单。
更进一步的，所述质量块22包括收容固定于所述副收容空间202内的质量块本体221以及由所述质量块本体221的远离所述顶壁211的一端弯折延伸至所述主收容空间201内的支撑壁222，所述第一磁钢231抵接支撑于所述支撑壁222。
在装配工过程中，所述支撑壁222直接将所述第一磁钢231固定在装配位置，实现了所述第一磁钢23与所述分隔壁214的精确定位，提高了装配精度，而且省去了对所述第一磁钢231与所述分隔壁214之间的对位工作，进一步降低了装配难度，进一步简化了装配流程；同时，所述支撑壁222为所述第一磁钢231提供支撑，使得所述第一磁钢231与所述支架21的装配更加可靠，避免了所述第一磁钢231在振动过程中发生脱落的现象，从而使得所述线性振动电机100的振动可靠性高。
为了提高所述振动单元2的振动性能，本实施方中的所述磁钢23还增设了收容于所述主收容空间201内的两个第二磁钢232，两个所述第二磁钢232分别固定于平行于所述支架21长轴的相对两个所述侧壁212。通过所述第二磁钢232的设置，增强了磁场强度，使得所述线圈组件4与所述磁钢23之间产生的驱动力更强，从而进一步提升所述线性振动电机100的振动性能。
请参阅图2及图3所示，所述弹性件3将所述振动单元2悬置于所述第一收容空间10内。即所述弹性件3一端固定于所述振动单元2，一端固定于所述壳体1，具体为固定于所述壳体1的所述上盖12内且将所述振动单元2悬置于所述上盖12内。
所述线圈组件4固定于所述壳体1并驱动所述振动单元2振动；本实施方式中，所述线圈组件4固定于所述底板11。
具体的，所述线圈组件4包括固定于所述壳体1的铁芯41和绕设于所述铁芯41的线圈42。
本实施方式中，所述线圈组件4具体固定安装于所述底板11，其与两个所述第一磁钢23正对间隔设置，所述线圈42通电后，所述铁芯41形成磁场并与所述第一磁钢23的磁场相互作用，从而驱动所述振动单元2往复直线运动，产生振动效果。
与相关技术相比，本实用新型提供的线性振动电机中，所述支架设置有所述第二收容空间，两个所述分隔壁将所述第二收容空间分隔成主收容空间和位于所述主收容空间相对两侧的两个副收容空间，所述主收容空间与所述通口正对设置且连通；所述质量块包括两个且分别收容固定于两个所述副收容空间内，所述磁钢包括位于所述主收容空间内的第一磁钢，所述第一磁钢贴设固定于所述分隔壁，所述线圈组件延伸至所述主收容空间内且与所述磁钢间隔。上述结构中，在装配时，所述质量块直接固定收容于所述副收容空间内，实现了所述质量块与所述支架的精确定位，提高了装配精度，而且省去了对所述质量块与所述支架装配时的对位工作，降低了装配难度，使得装配简单。
以上所述的仅是本实用新型的实施方式，在此应当指出，对于本领域的普通技术人员来说，在不脱离本实用新型创造构思的前提下，还可以做出改进，但这些均属于本实用新型的保护范围。

Claims (8)

  1. 一种线性振动电机，其包括具有第一收容空间的壳体、置于所述第一收容空间内的振动单元、将所述振动单元悬置于所述第一收容空间的弹性件以及固定于所述壳体并驱动所述振动单元振动的线圈组件，所述振动单元包括与所述弹性件连接的支架以及分别固定于所述支架的质量块和磁钢，其特征在于，所述支架包括垂直所述振动单元振动方向设置的顶壁、由所述顶壁周缘弯折延伸的侧壁、贯穿所述顶壁的通口以及由所述通口相对两侧分别弯折延伸的两个分隔壁；所述顶壁与所述侧壁围成第二收容空间，两个所述分隔壁将所述第二收容空间分隔成主收容空间和位于所述主收容空间相对两侧的两个副收容空间，所述主收容空间与所述通口正对设置且连通；所述质量块收容固定于所述副收容空间内，所述磁钢包括位于所述主收容空间内的第一磁钢，所述第一磁钢贴设固定于所述分隔壁。
  2. 根据权利要求1所述的线性振动电机，其特征在于，所述第一磁钢包括两个且分别贴设固定于两个所述分隔壁。
  3. 根据权利要求2所述的线性振动电机，其特征在于，所述支架呈矩形，两个所述分隔壁平行于所述支架的短轴。
  4. 根据权利要求3所述的线性振动电机，其特征在于，所述磁钢还包括收容于所述主收容空间内的两个第二磁钢，两个所述第二磁钢分别固定于平行于所述支架长轴的相对两个所述侧壁。
  5. 根据权利要求1所述的线性振动电机，其特征在于，所述质量块包括收容固定于所述副收容空间内的质量块本体以及由所述质量块本体的远离所述顶壁的一端弯折延伸至所述主收容空间内的支撑壁，所述第一磁钢抵接支撑于所述支撑壁。
  6. 根据权利要求1所述的线性振动电机，其特征在于，所述壳体包括底板以及盖设于所述底板并共同围成所述第一收容空间的上盖；所述弹性件固定于所述上盖内侧并将所述振动单元悬置于所述上盖内，所述线圈组件固定于所述底板。
  7. 根据权利要求6所述的线性振动电机，其特征在于，所述线圈组件包括固定于所述底板的铁芯以及绕设于所述铁芯的线圈。
  8. 根据权利要求1所述的线性振动电机，其特征在于，所述线圈组件延伸至所述主收容空间内且与所述磁钢间隔。
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