WO2022062022A1 - 振动电机 - Google Patents

振动电机 Download PDF

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Publication number
WO2022062022A1
WO2022062022A1 PCT/CN2020/123501 CN2020123501W WO2022062022A1 WO 2022062022 A1 WO2022062022 A1 WO 2022062022A1 CN 2020123501 W CN2020123501 W CN 2020123501W WO 2022062022 A1 WO2022062022 A1 WO 2022062022A1
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WO
WIPO (PCT)
Prior art keywords
coil
circuit assembly
magnetic steel
opposite
magnetic circuit
Prior art date
Application number
PCT/CN2020/123501
Other languages
English (en)
French (fr)
Inventor
崔志勇
毛路斌
王尧
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
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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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 WO2022062022A1 publication Critical patent/WO2022062022A1/zh

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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K3/00Details of windings
    • H02K3/04Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
    • H02K3/28Layout of windings or of connections between windings
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K33/00Motors with reciprocating, oscillating or vibrating magnet, armature or coil system
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K33/00Motors with reciprocating, oscillating or vibrating magnet, armature or coil system
    • H02K33/18Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with coil systems moving upon intermittent or reversed energisation thereof by interaction with a fixed field system, e.g. permanent magnets

Definitions

  • the present application relates to the field of motors, and in particular, to a vibration motor.
  • vibration motors for system feedback.
  • Such a wide range of applications requires high performance and long service life of the vibration motor.
  • the vibration motor in the related art When the vibration motor in the related art generates an oblique driving force, the magnetic field is usually set obliquely or the coil is set obliquely, but the oblique driving force generated by the above two methods is easily coupled in two directions. , and the generated oblique driving force is small, which affects the performance of the vibration motor.
  • the purpose of this application is to provide a vibration motor with better performance.
  • a vibration motor comprising a housing with a housing space, a vibrator and a stator housed in the housing space, and an elastic support member for suspending and supporting the vibrator in the housing space, the vibrator and One of the stators includes a coil assembly, the vibrator and the other of the stators include a magnetic circuit assembly, the magnetic circuit assembly extends in the axial direction, and the elastic support is located on the vibrator in the axial direction. the opposite ends of ;
  • the coil assembly includes a first coil and a second coil acting on the magnetic circuit assembly, the first coils are located on opposite sides of the magnetic circuit assembly with respect to a first direction perpendicular to the axial direction, the The second coils are located on opposite sides of the magnetic circuit assembly with respect to a second direction perpendicular to the axial direction, the first direction and the second direction are not parallel to each other; a single first coil is located along the second direction. Two sides in one direction are respectively disposed opposite to the magnetic circuit assembly and the polarities of the corresponding magnetic poles are opposite; the two sides of the single second coil along the second direction are respectively disposed opposite to the magnetic circuit assembly and corresponding to the magnetic poles opposite polarity.
  • the first direction is perpendicular to the second direction.
  • the magnetic circuit assembly includes a first magnetic steel and a second magnetic steel arranged in sequence along the first direction, and the magnetization of the first magnetic steel and the second magnetic steel In the opposite direction.
  • both the first magnetic steel and the second magnetic steel are magnetized along the second direction.
  • the first magnetic steel includes a first upper magnetic steel and a first lower magnetic steel stacked along the second direction
  • the second magnetic steel includes a first magnetic steel stacked along the second direction
  • the second upper magnetic steel and the second lower magnetic steel are provided, the first upper magnetic steel is directly opposite to the second upper magnetic steel, the first lower magnetic steel is directly opposite to the second lower magnetic steel,
  • the magnetization direction of the first upper magnet is opposite to the magnetization direction of the second lower magnet, the magnetization direction of the first lower magnet and the second upper magnet is opposite, and the first lower magnet is opposite to the magnetization direction of the second upper magnet.
  • the magnetization direction of the upper magnet steel is arranged at an included angle with the magnetization direction of the second upper magnet steel.
  • the first coil and the second coil are arranged in parallel or in series.
  • the stator is fixed to the housing, the stator includes the coil assembly, and the vibrator includes the magnetic circuit assembly.
  • the vibrator further includes two counterweight blocks abutting on opposite sides of the magnetic circuit assembly, respectively.
  • the elastic support includes a first fixing arm fixed to the counterweight, a second fixing arm fixed to the housing, and connecting the first fixing arm and the first fixing arm Two fixed arms and elastic arms arranged around the counterweight.
  • the housing includes an upper cover plate and a lower cover plate that are relatively parallel and spaced apart, and a front side plate that is relatively parallel and spaced apart and used to connect the upper cover plate and the lower cover plate and the rear side panel and the left side panel and the right side panel which are relatively parallel and spaced apart and are used to connect the upper cover panel and the lower cover panel, the upper cover panel, the lower cover panel and the front side panel , the rear side plate, the left side plate and the right side plate are enclosed to form the receiving space, and the coil assembly is fixed on the upper cover plate and/or the lower cover plate and/or the the front side panel and/or the rear side panel.
  • the beneficial effect of the present application is that: through the interaction between the coil assembly and the magnetic circuit assembly, the coil assembly or the magnetic circuit assembly is driven to vibrate, thereby realizing the vibration of the vibration motor.
  • the second coils are located on opposite sides of the magnetic circuit assembly with respect to the second direction perpendicular to the axial direction, and the first direction and the second direction are not parallel to each other; furthermore, between the first coil and the magnetic circuit assembly
  • the direction of the generated driving force is different from the direction of the driving force generated between the second coil and the magnetic circuit assembly, and there is no coupling between the driving forces in the two directions.
  • the driving force between the coil assembly and the magnetic circuit assembly can be increased, thereby improving the performance of the vibration motor.
  • FIG. 1 is a schematic diagram of the overall structure of a vibration motor according to an embodiment of the application.
  • Fig. 2 is the exploded schematic diagram of the vibration motor in Fig. 1;
  • Fig. 3 is the partial structure schematic diagram in Fig. 1;
  • Fig. 4 is the sectional view along A-A of Fig. 1;
  • FIG. 5 is a schematic diagram of the overall structure of a vibration motor according to another embodiment of the application.
  • FIG. 6 is a cross-sectional view taken along the line B-B of FIG. 5 .
  • 100 shell; 101, storage space; 110, upper cover plate; 120, lower cover plate; 130, front side plate; 140, rear side plate; 150, left side plate; 160, right side plate; 200, vibrator; 210, magnetic circuit assembly; 211, first magnet; 212, first upper magnet; 213, first lower magnet; 214, second magnet; 215, second upper magnet; 216, second lower magnet steel; 220, counterweight; 221, connecting part; 222, fixing part; 300, stator; 310, coil assembly; 311, first coil; 312, second coil; 400, elastic support; 410, first fixing arm; 420, the second fixed arm; 430, the elastic arm; 440, the welding piece.
  • an embodiment of the present application provides a vibration motor.
  • the vibration motor in this embodiment includes a housing 100 having an accommodation space 101 , a vibrator 200 and a stator 300 accommodated in the accommodation space 101 , One of the vibrator 200 and the stator 300 includes a coil assembly 310 , and the other of the vibrator 200 and the stator 300 includes a magnetic circuit assembly 210 .
  • the interaction between the stator 300 and the vibrator 200 drives the vibrator 200 to vibrate.
  • the stator 300 is fixed to the casing 100 , and the stator 300 includes a coil assembly 310 , the coil assembly 310 is fixed on the casing 100 , and the vibrator 200 includes a magnetic circuit assembly 210 .
  • the housing 100 includes an upper cover 110 and a lower cover 120 that are relatively parallel and spaced apart, and are parallel and spaced to connect the upper cover 110 and the lower cover 120
  • the front side panel 130 and the rear side panel 140 and the left side panel 150 and the right side panel 160 which are relatively parallel and spaced apart and used to connect the upper cover panel 110 and the lower cover panel 120, the upper cover panel 110, the lower cover panel 120, the front The side plate 130 , the rear side plate 140 , the left side plate 150 and the right side plate 160 enclose the receiving space 101 .
  • the coil assembly 310 includes a first coil 311 and a second coil 312 that interact with the magnetic circuit assembly 210 , and the first coil 311 is located on the magnetic circuit assembly 210 about perpendicular to On the opposite sides of the first direction D1 in the axial direction, the second coil 312 is located on the opposite sides of the magnetic circuit assembly 210 with respect to the second direction D2 perpendicular to the axial direction thereof.
  • the first direction D1 and the second direction D2 are not parallel to each other.
  • the two sides of the single first coil 311 along the first direction D1 are respectively arranged opposite to the magnetic circuit assembly 210 and the polarity of the corresponding magnetic pole is opposite; the two sides of the single second coil 312 along the second direction D2 are respectively It is opposite to the magnetic circuit assembly 210 and the polarity of the corresponding magnetic pole is opposite.
  • the first coils 311 are located on opposite sides of the magnetic circuit assembly 210 with respect to the first direction D1 perpendicular to the axial direction
  • the second coils 312 are located on opposite sides of the magnetic circuit assembly 210 with respect to the second direction D2 perpendicular to the axial direction
  • the first direction D1 and the second direction D2 are not parallel to each other; furthermore, the direction of the driving force generated between the first coil 311 and the magnetic circuit assembly 210 and the direction of the driving force generated between the second coil 312 and the magnetic circuit assembly 210
  • the driving force between the coil assembly 310 and the magnetic circuit assembly 210 can be increased, thereby improving the Vibration motor performance.
  • the first direction D1 is perpendicular to the second direction D2 .
  • the driving force can be generated in two directions perpendicular to each other, and the driving forces in the two directions can act together to form an oblique driving force, and the driving forces in the two directions will not be coupled and do not affect each other. , so that the performance of the vibration motor is better.
  • the two first coils 311 are respectively disposed on the upper cover plate 110 and the lower cover plate 120, and the two second coils 312 are respectively disposed on the front side plate 130 and the rear side plate 140, and then
  • the coil assembly 310 can be conveniently and stably fixed on the housing 100 .
  • the first coil 311 and the second coil 312 are arranged in parallel or in series.
  • the first coil 311 and the second coil 312 can be connected in series or in parallel, preferably the first coil 311 and the second coil 312 are arranged in parallel.
  • the first coil 311 and the second coil 312 can be independently controlled and have multiple operation modes, which can make the user experience better.
  • the magnetic circuit assembly 210 includes a first magnetic steel 211 and a second magnetic steel 214 arranged in sequence along the first direction D1 . Magnetic directions are opposite.
  • both the first magnetic steel 211 and the second magnetic steel 214 are magnetized along the second direction D2.
  • the magnetic circuit assembly 210 can form three magnetic field loops, and the three magnetic field loops can also vertically pass through the first coil 311 and the second coil 312 , thereby generating driving forces in two different directions.
  • the magnetic circuit assembly 210 includes a first magnetic steel 211 and a second magnetic steel 214 arranged in sequence along the first direction D1 , and the first magnetic steel 211 includes a stack of magnetic steels 211 along the second direction D2
  • the second upper magnet 215 the first lower magnet 213 is opposite to the second lower magnet 216
  • the magnetization direction of the first upper magnet 212 is opposite to the magnetization direction of the second lower magnet 216
  • the magnetization directions of the lower magnet 213 and the second upper magnet 215 are opposite, and the magnetization direction of the first upper magnet 212 and the second upper magnet 215 are arranged at an angle.
  • the magnetization direction of the first upper magnet steel 212 and the magnetization direction of the second upper magnet steel 215 are arranged at an angle of 45 degrees.
  • the magnetic field of the magnetic circuit assembly 210 can pass through the first coil 311 and the second coil 312 more vertically at the same time, so that the magnetic circuit assembly 210 in this embodiment can significantly improve the distribution of the magnetic field, so that the magnetic field can be better vertical through the coil.
  • the magnetic circuit assembly 210 can form 4 magnetic field loops, and the 4 magnetic field loops can pass through the first coil 311 and the second coil 312 vertically well, so as to improve the utilization rate of the magnetic field, thereby improving the The driving force of the vibration motor.
  • the vibrator 200 further includes two counterweight blocks 220 abutting on opposite sides of the magnetic circuit assembly 210 respectively. Specifically, the two weights 220 abut on the two sides of the magnetic circuit assembly 210 facing the left side plate 150 and the right side plate 160 respectively, so as to avoid affecting the assembly of the coil assembly 310 .
  • the vibration motor further includes an elastic support member 400 which is accommodated in the housing 100 and supports the vibrator 200 in a suspended manner.
  • the elastic support member 400 includes a first fixing arm 410 fixed to the counterweight 220 , a second fixing arm 420 fixed to the housing 100 , and connecting the first fixing arm 410 and the second fixing arm 420 And the elastic arm 430 disposed around the counterweight 220 is arranged.
  • the weight block 220 includes a connecting portion 221 for connecting the magnetic circuit assembly 210 and a fixing portion 222 for fixing the first fixing arm 410 .
  • the elastic arm 430 is disposed around the fixing portion 222 .
  • first fixing arm 410 and the fixing portion 222 are welded together by the solder tab 440
  • second fixing arm 420 and the housing 100 are welded together by the solder tab 440 .
  • each counterweight 220 there are four elastic support members 400 , and two elastic support members 400 are fixed on each counterweight 220 .

Abstract

一种振动电机,包括具有收容空间(101)的壳体(100)以及收容于收容空间(101)内的振子(200)和定子(300)以及将振子(200)悬置支撑于收容空间(101)内的弹性支撑件(400),振子(200)和定子(300)的其中一方包括线圈组件(310),振子(200)和定子(300)的其中另一方包括磁路组件(210),磁路组件(210)沿轴向延伸,弹性支撑件(400)位于振子(200)沿轴向的相对两端;线圈组件(310)包括与磁路组件(210)作用的第一线圈(311)和第二线圈(312),第一线圈(311)位于磁路组件(210)关于垂直于轴向的第一方向的相对两侧,第二线圈(312)位于磁路组件(210)关于垂直于轴向的第二方向的相对两侧,第一方向与第二方向互不平行;单个第一线圈(311)沿第一方向的两侧分别与磁路组件(210)相对设置且对应磁极的极性相反;单个第二线圈(312)沿第二方向的两侧分别与磁路组件(210)相对设置且对应磁极的极性相反。

Description

振动电机 技术领域
本申请涉及电机领域,尤其涉及一种振动电机。
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,这些电子产品一般都会用到振动电机来做系统反馈,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,使用寿命长。
技术问题
相关技术中的振动电机在产生斜向驱动力时,通常是通过将磁场倾斜设置或是将线圈倾斜设置,但是通过上述两种方式容易导致产生的斜向的驱动力在两个方向上存在耦合,且产生的斜向驱动力较小,影响振动电机的性能。
因此,有必要提供一种新型的振动电机来解决上述问题。
技术解决方案
本申请的目的在于提供一种性能更佳的振动电机。
本申请的技术方案如下:一种振动电机,包括具有收容空间的壳体以及收容于所述收容空间内的振子和定子以及将振子悬置支撑于收容空间内的弹性支撑件,所述振子和所述定子的其中一方包括线圈组件,所述振子和所述定子的其中另一方包括磁路组件,所述磁路组件沿轴向延伸,所述弹性支撑件位于所述振子沿所述轴向的相对两端;
所述线圈组件包括与所述磁路组件作用的第一线圈和第二线圈,所述第一线圈位于所述磁路组件关于垂直于所述轴向的第一方向的相对两侧,所述第二线圈位于所述磁路组件关于垂直于所述轴向的第二方向的相对两侧,所述第一方向与所述第二方向互不平行;单个所述第一线圈沿所述第一方向的两侧分别与所述磁路组件相对设置且对应磁极的极性相反;单个所述第二线圈沿所述第二方向的两侧分别与所述磁路组件相对设置且对应磁极的极性相反。
作为本申请的一个实施例,所述第一方向与所述第二方向垂直。
作为本申请的一个实施例,所述磁路组件包括沿所述第一方向依次排布的第一磁钢与第二磁钢,所述第一磁钢与所述第二磁钢的充磁方向相反。
作为本申请的一个实施例,所述第一磁钢与所述第二磁钢均沿所述第二方向充磁。
作为本申请的一个实施例,所述第一磁钢包括沿所述第二方向叠设的第一上磁钢与第一下磁钢,所述第二磁钢包括沿所述第二方向叠设的第二上磁钢与第二下磁钢,所述第一上磁钢与所述第二上磁钢正对,所述第一下磁钢与所述第二下磁钢正对,所述第一上磁钢的充磁方向和所述第二下磁钢的充磁方向相反,所述第一下磁钢和所述第二上磁钢的充磁方向相反,所述第一上磁钢的充磁方向与所述第二上磁钢的充磁方向呈夹角设置。
作为本申请的一个实施例,所述第一线圈和所述第二线圈并联或串联设置。
作为本申请的一个实施例,所述定子固定于所述壳体,且所述定子包括所述线圈组件,所述振子包括所述磁路组件。
作为本申请的一个实施例,所述振子还包括分别抵接在所述磁路组件相对两侧的两个配重块。
作为本申请的一个实施例,所述弹性支撑件包括固定于所述配重块的第一固定臂、固定于所述壳体的第二固定臂以及连接所述第一固定臂与所述第二固定臂且环绕所述配重块设置的弹力臂。
作为本申请的一个实施例,所述壳体包括相对平行且间隔设置的上盖板和下盖板、相对平行且间隔设置并用于连接所述上盖板和所述下盖板的前侧板和后侧板以及相对平行且间隔设置并用于连接所述上盖板和所述下盖板的左侧板和右侧板,所述上盖板、所述下盖板、所述前侧板、所述后侧板、所述左侧板以及所述右侧板围合形成所述收容空间,所述线圈组件固定于所述上盖板和/或所述下盖板上和/或所述前侧板和/或所述后侧板。
有益效果
本申请的有益效果在于:通过线圈组件与磁路组件的相互作用,驱动线圈组件或磁路组件振动,进而实现振动电机的振动,由于第一线圈位于磁路组件关于垂直于轴向的第一方向的相对两侧,第二线圈位于磁路组件关于垂直于轴向的第二方向的相对两侧,且第一方向与第二方向互不平行;进而,第一线圈与磁路组件之间产生的驱动力的方向和第二线圈与磁路组件之间产生的驱动力的方向不同,而且两个方向上的驱动力不存在耦合,另外,通过第一线圈和第二线圈的同时作用,能够增大线圈组件和磁路组件之间的驱动力,进而提高了振动电机的性能。
附图说明
图1为本申请一实施例的振动电机的整体结构示意图;
图2为图1中的振动电机的分解示意图;
图3为图1中的部分结构示意图;
图4为图1沿A-A处的剖视图;
图5为本申请另一实施例的振动电机的整体结构示意图;
图6为图5沿B-B处的剖视图。
100、壳体;101、收容空间;110、上盖板;120、下盖板;130、前侧板;140、后侧板;150、左侧板;160、右侧板;200、振子;210、磁路组件;211、第一磁钢;212、第一上磁钢;213、第一下磁钢;214、第二磁钢;215、第二上磁钢;216、第二下磁钢;220、配重块;221、连接部;222、固定部;300、定子;310、线圈组件;311、第一线圈;312、第二线圈;400、弹性支撑件;410、第一固定臂;420、第二固定臂;430、弹力臂;440、焊片。
本发明的实施方式
为进一步说明各实施例,本申请提供有附图。这些附图为本申请揭露内容的一部分,其主要用以说明实施例,并可配合说明书的相关描述来解释实施例的运作原理。配合参考这些内容,本领域普通技术人员应能理解其他可能的实施方式以及本申请的优点。图中的组件并未按比例绘制,而类似的组件符号通常用来表示类似的组件。
下面结合附图和实施方式对本申请作进一步说明。
请参照图1-图6,本申请一实施例提供了一种振动电机,本实施例中的振动电机包括具有收容空间101的壳体100以及收容于收容空间101内的振子200和定子300,振子200和定子300的其中一方包括线圈组件310,振子200和定子300的其中另一方包括磁路组件210,通过定子300与振子200之间的相互作用,驱动振子200振动。
优选地,定子300固定于壳体100,且定子300包括线圈组件310,线圈组件310固定于壳体100上,振子200包括磁路组件210。
请参照图1以及图2,在一实施例中,壳体100包括相对平行且间隔设置的上盖板110和下盖板120、平行且间隔设置并用于连接上盖板110和下盖板120的前侧板130和后侧板140以及相对平行且间隔设置并用于连接上盖板110和下盖板120的左侧板150和右侧板160,上盖板110、下盖板120、前侧板130、后侧板140、左侧板150以及右侧板160围合形成收容空间101。
请参照图2-图4以及图6,在一实施例中,线圈组件310包括与磁路组件210作用的第一线圈311和第二线圈312,第一线圈311位于磁路组件210关于垂直于其轴向的第一方向D1的相对两侧,第二线圈312位于磁路组件210关于垂直于其轴向的第二方向D2的相对两侧,第一方向D1与第二方向D2互不平行;单个所述第一线圈311沿所述第一方向D1的两侧分别与所述磁路组件210相对设置且对应磁极的极性相反;单个第二线圈312沿第二方向D2的两侧分别与磁路组件210相对设置且对应磁极的极性相反。由于第一线圈311位于磁路组件210关于垂直于轴向的第一方向D1的相对两侧,第二线圈312位于磁路组件210关于垂直于轴向的第二方向D2的相对两侧,且第一方向D1与第二方向D2互不平行;进而,第一线圈311与磁路组件210之间产生的驱动力的方向和第二线圈312与磁路组件210之间产生的驱动力的方向不同,而且两个方向上的驱动力不存在耦合,另外,通过第一线圈311和第二线圈312的同时作用,能够增大线圈组件310和磁路组件210之间的驱动力,进而提高了振动电机的性能。
请参照图3、图4以及图6,在一实施例中,第一方向D1与第二方向D2垂直。进而可以在相互垂直的两个方向上产生驱动力,在两个方向上的驱动力共同作用,可合并形成斜向驱动力,且两个方向上的驱动力之间不会耦合,互不影响,使振动电机的性能更佳。
请参照图4以及图6,具体地,两个第一线圈311分设在上盖板110和下盖板120上,两个第二线圈312分设在前侧板130和后侧板140上,进而能够将线圈组件310方便稳定地固定在壳体100上。
在一实施例中,第一线圈311和第二线圈312并联或串联设置。本实施例中,第一线圈311和第二线圈312串联和并联均可,优选为第一线圈311和第二线圈312并联设置。当第一线圈311和第二线圈312并联设置时,第一线圈311和第二线圈312能够独立控制,具有多种作业模式,能够使用户体验更佳。
请参照图6,在一实施例中,磁路组件210包括沿第一方向D1依次排布的第一磁钢211与第二磁钢214,第一磁钢211与第二磁钢214的充磁方向相反。
优选地,第一磁钢211与第二磁钢214均沿所述第二方向D2充磁。
请参照图6,本实施例中,磁路组件210能够形成3个磁场回路,3个磁场回路也能够垂直穿过第一线圈311和第二线圈312,进而产生两个不同方向的驱动力。
请参照图4,在另一实施例中,磁路组件210包括沿第一方向D1依次排布的第一磁钢211与第二磁钢214,第一磁钢211包括沿第二方向D2叠设的第一上磁钢212与第一下磁钢213,第二磁钢214包括沿第二方向D2叠设的第二上磁钢215与第二下磁钢216,第一上磁钢212与第二上磁钢215正对,第一下磁钢213与第二下磁钢216正对,第一上磁钢212的充磁方向和第二下磁钢216的充磁方向相反,第一下磁钢213和第二上磁钢215的充磁方向相反,第一上磁钢212的充磁方向与第二上磁钢215的充磁方向呈夹角设置。
优选地,第一上磁钢212的充磁方向与第二上磁钢215的充磁方向呈45度角设置。进而,磁路组件210的磁场能够同时更好的垂直穿过第一线圈311和第二线圈312,进而使本实施例中的磁路组件210能够明显的改善磁场的分布,使磁场能够更好的垂直穿过线圈。
请参照图4,本实施例中,磁路组件210能够形成4个磁场回路,4个磁场回路能够很好的垂直穿过第一线圈311和第二线圈312,提高磁场的利用率,进而提高振动电机的驱动力。
请参照图2,在一实施例中,振子200还包括分别抵接在磁路组件210相对两侧的两个配重块220。具体地,两个配重块220分别抵接在磁路组件210朝向左侧板150和右侧板160的两个侧面上,以避免影响线圈组件310的装配。
请参照图2,在一实施例中,振动电机还包括收容于壳体100内且悬置支撑振子200的弹性支撑件400。
请参照图2,具体地,弹性支撑件400包括固定于配重块220的第一固定臂410、固定于壳体100的第二固定臂420以及连接第一固定臂410与第二固定臂420且环绕配重块220设置的弹力臂430。
请参照图2以及图3,具体地,配重块220包括用于连接磁路组件210的连接部221以及用于固定第一固定臂410的固定部222,弹力臂430环绕固定部222设置。
具体地,第一固定臂410与固定部222通过焊片440焊接在一起,第二固定臂420与壳体100通过焊片440焊接在一起。
请参照图2,优选地,弹性支撑件400具有四个,每一配重块220上固设有两个弹性支撑件400。
以上的仅是本申请的实施方式,在此应当指出,对于本领域的普通技术人员来说,在不脱离本申请创造构思的前提下,还可以做出改进,但这些均属于本申请的保护范围。

Claims (10)

  1. 一种振动电机,其特征在于,包括具有收容空间的壳体以及收容于所述收容空间内的振子和定子以及将振子悬置支撑于收容空间内的弹性支撑件,所述振子和所述定子的其中一方包括线圈组件,所述振子和所述定子的其中另一方包括磁路组件,所述磁路组件沿轴向延伸,所述弹性支撑件位于所述振子沿所述轴向的相对两端;
    所述线圈组件包括与所述磁路组件作用的第一线圈和第二线圈,所述第一线圈位于所述磁路组件关于垂直于所述轴向的第一方向的相对两侧,所述第二线圈位于所述磁路组件关于垂直于所述轴向的第二方向的相对两侧,所述第一方向与所述第二方向互不平行;单个所述第一线圈沿所述第一方向的两侧分别与所述磁路组件相对设置且对应磁极的极性相反;单个所述第二线圈沿所述第二方向的两侧分别与所述磁路组件相对设置且对应磁极的极性相反。
  2. 根据权利要求1所述的振动电机,其特征在于:所述第一方向与所述第二方向垂直。
  3. 根据权利要求2所述的振动电机,其特征在于:所述磁路组件包括沿所述第一方向依次排布的第一磁钢与第二磁钢,所述第一磁钢与所述第二磁钢的充磁方向相反。
  4. 根据权利要求3所述的振动电机,其特征在于:所述第一磁钢与所述第二磁钢均沿所述第二方向充磁。
  5. 根据权利要求3所述的振动电机,其特征在于:所述第一磁钢包括沿所述第二方向叠设的第一上磁钢与第一下磁钢,所述第二磁钢包括沿所述第二方向叠设的第二上磁钢与第二下磁钢,所述第一上磁钢与所述第二上磁钢正对,所述第一下磁钢与所述第二下磁钢正对,所述第一上磁钢的充磁方向和所述第二下磁钢的充磁方向相反,所述第一下磁钢和所述第二上磁钢的充磁方向相反,所述第一上磁钢的充磁方向与所述第二上磁钢的充磁方向呈夹角设置。
  6. 根据权利要求1所述的振动电机,其特征在于:所述第一线圈和所述第二线圈并联或串联设置。
  7. 根据权利要求1-6中任一项所述的振动电机,其特征在于:所述定子固定于所述壳体,且所述定子包括所述线圈组件,所述振子包括所述磁路组件。
  8. 根据权利要求1所述的振动电机,其特征在于:所述振子还包括分别抵接在所述磁路组件相对两侧的两个配重块。
  9. 根据权利要求8所述的振动电机,其特征在于:所述弹性支撑件包括固定于所述配重块的第一固定臂、固定于所述壳体的第二固定臂以及连接所述第一固定臂与所述第二固定臂且环绕所述配重块设置的弹力臂。
  10. 根据权利要求7所述的振动电机,其特征在于:所述壳体包括相对平行且间隔设置的上盖板和下盖板、相对平行且间隔设置并用于连接所述上盖板和所述下盖板的前侧板和后侧板以及相对平行且间隔设置并用于连接所述上盖板和所述下盖板的左侧板和右侧板,所述上盖板、所述下盖板、所述前侧板、所述后侧板、所述左侧板以及所述右侧板围合形成所述收容空间,所述线圈组件固定于所述上盖板和/或所述下盖板上和/或所述前侧板和/或所述后侧板。
PCT/CN2020/123501 2020-09-28 2020-10-26 振动电机 WO2022062022A1 (zh)

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