WO2021168895A1 - 旋转振动电机 - Google Patents

旋转振动电机 Download PDF

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Publication number
WO2021168895A1
WO2021168895A1 PCT/CN2020/078126 CN2020078126W WO2021168895A1 WO 2021168895 A1 WO2021168895 A1 WO 2021168895A1 CN 2020078126 W CN2020078126 W CN 2020078126W WO 2021168895 A1 WO2021168895 A1 WO 2021168895A1
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WO
WIPO (PCT)
Prior art keywords
eccentric
vibration motor
rotary vibration
elastic
housing
Prior art date
Application number
PCT/CN2020/078126
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English (en)
French (fr)
Inventor
毛路斌
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.)
Filing date
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 WO2021168895A1 publication Critical patent/WO2021168895A1/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
    • 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

  • This application relates to the technical field of motors, and in particular to a rotary vibration motor.
  • the vibrator performs linear vibration under the action of driving force, the vibration form is single, and the vibration effect needs to be improved. Therefore, it is necessary to provide a new vibration motor to solve the above technical problems.
  • the purpose of this application is to provide a rotary vibration motor, which solves the technical problems in the prior art that the vibration form is single and the vibration effect needs to be improved.
  • a rotary vibration motor the rotary vibration motor includes a housing with a housing space, at least one drive assembly and a vibration assembly arranged in the housing space, the drive assembly includes a coil and a magnet The coil and the magnet are at least partially arranged opposite to each other to generate a driving force, the vibration assembly includes two vibrator parts and a spring member that supports and suspends the two vibrator parts in the accommodating space, and the vibration The component rotates under the action of the driving component.
  • the two vibrator parts include an arc-shaped eccentric part far away from the rotation center.
  • the two eccentric parts are arranged symmetrically with respect to the rotation center.
  • the inner concave surfaces of the eccentric parts are arranged oppositely.
  • the coil is fixed to the housing, and the magnet is fixed to the vibrator part.
  • the coil is fixed to the vibrator part, and the magnet is fixed to the housing.
  • the first elastic portion of the portion includes a connecting portion extending from the fixed portion to the eccentric portion, and a connecting portion that is formed by bending an end of the connecting portion close to the eccentric portion toward the eccentric portion An abutting portion that abuts the eccentric portion.
  • At least one of the vibrator parts further includes a fan-shaped part connected with the eccentric part, the arc end of the fan-shaped part is connected with the top or bottom of the eccentric part, and the center of the fan-shaped part is formed with It is sleeved on the annular part of the fixed shaft.
  • the two vibrator parts both include the fan-shaped part, and the arc end of the fan-shaped part of one of the vibrator parts is connected to the top of the eccentric part, and the arc of the fan-shaped part of the other vibrator part is connected to the top of the eccentric part. The end is connected with the bottom of the eccentric part.
  • the spring member is directly fixed to the housing.
  • the spring member includes two mutually cooperating elastic parts, the elastic part is formed by continuously bending an elastic part, and the elastic part includes a second second part connected in sequence for clamping one of the eccentric parts.
  • the fourth elastic portion includes a fourth connecting portion extending from the third elastic portion to the eccentric portion, and a fourth connecting portion that is formed by bending an end of the fourth connecting portion close to the eccentric portion toward the eccentric portion and the eccentric portion.
  • the magnet is provided on the top end of the eccentric part, and the coil is provided on the inner surface of the housing.
  • the outer convex surface of the eccentric part is formed with a hollow part, and the magnet is provided in the hollow part.
  • the outer convex surface of the eccentric part is formed with a hollow part, the coil is arranged in the hollow part, and the magnet is arranged on the inner surface of the housing.
  • the coil includes two coils, and the two coils are respectively arranged opposite to the two magnets.
  • the housing includes a main body portion having a receiving space and a cover portion matched with the main body portion, the coil includes one, and the coil is provided on the inner surface of the cover portion.
  • the two vibrator parts have the same shape.
  • the rotary vibration motor of the present application includes a housing, a drive assembly, and a vibration assembly.
  • the vibration assembly includes two vibrator parts and a spring member connecting the two vibrator parts.
  • the two eccentric portions are arranged symmetrically with respect to the center of rotation, and the inner concave surfaces of the two eccentric portions are arranged opposite to each other.
  • the two eccentric portions are rotationally vibrated,
  • the two eccentric parts can vibrate separately or in the same direction at the same time. There are various vibration modes.
  • FIG. 1 is a perspective view of a rotary vibration motor according to Embodiment 1 of the application;
  • FIG. 2 is a perspective view of the rotary vibration motor of Embodiment 1 of the application with the cover removed;
  • FIG. 3 is a perspective view of the rotary vibration motor according to Embodiment 1 of the application with the cover removed from another perspective;
  • FIG. 5 is an exploded view of the structure of the rotary vibration motor according to Embodiment 1 of the application;
  • Fig. 6 is a perspective view of the rotary vibration motor of the second embodiment of the application with the cover removed;
  • FIG. 7 is a perspective view of internal components of the middle housing of the rotary vibration motor according to Embodiment 2 of the application; FIG.
  • FIG. 8 is a perspective view of the internal components of the housing in the rotary vibration motor of the preferred embodiment of Embodiment 2 of the application; FIG.
  • FIG. 9 is an exploded view of the structure of the rotary vibration motor according to Embodiment 2 of the application.
  • FIG. 10 is a perspective view of the rotary vibration motor of Embodiment 3 of the application with the cover removed;
  • FIG. 11 is a schematic diagram of the cooperation between the vibrator part and the spring part of the rotary vibration motor according to the third embodiment of the application;
  • Figure 13 is a B-B cross-sectional view of the rotary vibration motor according to Embodiment 3 of the application;
  • FIG. 14 is a partial perspective view of the rotary vibration motor of Embodiment 3 of the application.
  • FIG. 15 is a perspective view of the rotary vibration motor according to Embodiment 4 of the application with the cover removed;
  • FIG. 16 is a partially exploded schematic diagram of the rotary vibration motor according to Embodiment 5 of the application.
  • FIG. 17 is a partially exploded schematic diagram of the rotary vibration motor according to Embodiment 6 of the application.
  • Embodiment 1 of the present application provides a rotary vibration motor 100. Please refer to FIG. 1 to FIG. 5.
  • the rotary vibration motor 100 includes a housing 10 having a housing space 103 and a drive assembly 20 arranged in the housing space 103. And a vibrating assembly.
  • the driving assembly 20 includes two coils 201 and magnets 202 respectively corresponding to the two coils 201.
  • the coils 201 and the magnet 202 are at least partially opposed to each other to generate driving force.
  • the vibrating assembly includes two vibrator parts 30 and two A vibrator portion 30 is supported and suspended in the spring member 40 of the receiving space 103, wherein the housing 10 includes a main body 101 having a receiving space 103 and a cover 102 that cooperates with the main body 101, and the main body 101 includes a bottom surface 1011 And the side surface 1012 arranged around the bottom surface 1011; the drive assembly composed of the coil 201 and the magnet 202 is used to drive the vibrating assembly to rotate and vibrate.
  • the vibrator part 30 includes an eccentric part 301 arranged in an arc shape. Suspended in the accommodating space 103 of the housing 10, the eccentric portion 301 includes an inner concave surface 3011 and an outer convex surface 3012 that are opposed to each other.
  • the side surface 1012 of the main body portion 101 of the body 10 is provided. Specifically, the two eccentric portions 301 are arranged symmetrically with respect to the rotation center 30c to achieve rotation vibration.
  • a fixed shaft 50 is provided at the rotation center 10c, that is, the two eccentric parts 301 are arranged symmetrically with respect to the fixed shaft 50, and one end of the fixed shaft 50 is fixed to the main body 101 of the housing 10.
  • the bottom surface 1011 is provided with a through hole 1013 that is matched with the fixed shaft 50.
  • the other end of the fixed shaft 50 is fixed to the cover 102 of the housing 10, and the cover 102 of the housing 10 is provided with a fixed shaft
  • the spring member 40 includes a fixed portion 401 sleeved on the fixed shaft 50 and a first elastic portion 402 for clamping the eccentric portion 301.
  • the first elastic portion 402 is provided with two, two first elastic portions 402 are respectively provided corresponding to the two eccentric portions 301, the first elastic portion 402 includes a connecting portion 4021 extending from the fixed portion 401 to the eccentric portion 301 and from the An end of the connecting portion 4021 close to the eccentric portion 301 is bent toward the eccentric portion 301 to form an abutting portion 4022 that abuts the eccentric portion 301.
  • the outer convex surface 3012 of the eccentric part 301 is formed with a hollow part 3013, the magnet 202 is arranged in the hollow part 3013, two coils 201 are provided, and the two coils 201 are respectively opposed to the two magnets 202
  • the coil 201 is arranged on the side surface 1012 of the casing 10.
  • the coil 201 generates a magnetic field after being energized, and interacts with the magnet 202 to generate a driving force.
  • the driving force drives the eccentric part 301 of the vibrating unit 30 to rotate and vibrate.
  • the vibration direction of the two eccentric parts 301 can be simultaneously leftward (Figure 3 shows the direction S1 and direction S2), the direction of the acceleration of the two superimposed is to the left; the vibration direction of the two eccentric parts 301 can be simultaneously to the right (direction S3 and direction S4 shown in Figure 3), the acceleration of the two superimposed The direction is to the right.
  • the two eccentric parts 301 can also vibrate separately.
  • the eccentric part 301 located above in FIG. 3 vibrates along the direction S1, or the eccentric part 301 located above vibrates in the direction S3 in FIG.
  • the lower eccentric portion 301 vibrates in the direction S2, and the lower eccentric portion 301 in FIG. 3 vibrates in the direction S4.
  • the stiffness of the first elastic portion 402 of the clamping eccentric portion 301 can be adjusted.
  • the stiffness of the first elastic portion 402 clamping the eccentric portion 301 above is K1
  • the stiffness of the first elastic part 402 holding the lower eccentric part 301 is K2, which realizes that the resonant frequencies of the two eccentric parts 301 are different, thereby realizing double f0 vibration.
  • Embodiment 2 of the present application provides a rotary vibration motor 200. Please refer to FIG. 6 to FIG. 9.
  • the difference between the rotary vibration motor 200 and the rotary vibration motor 100 in Embodiment 1 is that the vibrator part 30 also includes a fan-shaped part 302.
  • the other parts are the same as the embodiment 1.
  • the two vibrator portions 30 also include a fan-shaped portion 302 connected to the eccentric portion 301, and the arc end of the fan-shaped portion 302 of one of the vibrator portions 30 is connected to the top of the eccentric portion 301 (close to the cover portion). One end) is connected, the arc end of the sector 302 of the other vibrator part 30 is connected to the bottom of the eccentric part 301 (the end far from the cover), and the center of the sector 302 is formed with a sleeve covering the fixing The ring portion 3021 of the shaft 50.
  • the ring portions 3021 of the two fan-shaped portions 302 are respectively located at the upper and lower ends of the fixed portion 401.
  • FIG. 8 In the rotary vibration motor 200 of this embodiment, four first elastic parts 402 are provided, and every two first elastic parts 402 correspond to one eccentric part 301. It is provided that the two first elastic parts 402 clamp the two sides of the eccentric part 301 respectively.
  • Embodiment 3 of the present application provides a rotary vibration motor 300. Please refer to FIG. 10 to FIG. 14. As shown in FIG. 10 to FIG. 14, two magnets 202 corresponding to the coil 201. The coil 201 and the magnet 202 are at least partially opposed to each other to generate driving force.
  • the vibration assembly includes two vibrator parts 30 and the two vibrator parts 30 are supported and suspended in the accommodation space
  • the main body 101 includes a bottom surface 1011 and a side surface 1012 arranged around the bottom surface 1011; a coil 201 and a magnet
  • the drive assembly composed of 202 is used to drive the vibrating assembly to rotate and vibrate.
  • the vibrator portion 30 includes an eccentric portion 301 arranged in an arc shape.
  • the eccentric portion 301 is suspended in the housing space 103 of the housing 10, and
  • the portion 301 includes an inner concave surface 3011 and an outer convex surface 3012 that are arranged oppositely.
  • the inner concave surfaces 3011 of the two eccentric portions 301 are arranged opposite to each other.
  • the two eccentric parts 301 are arranged symmetrically with respect to the rotation center 30c to achieve rotational vibration.
  • the spring member 60 includes two mutually matched elastic portions 60a, the elastic portion 60a is formed by continuously bending an elastic member, the two elastic portions 60a are symmetrically arranged, and the elastic portion 60a includes sequentially connected elastic portions 60a.
  • the elastic portion 603, the second elastic portion 601 includes a second connecting portion 6011 extending from the third elastic portion 602 to the eccentric portion 301 and an end from the second connecting portion 6011 close to the eccentric portion 301
  • the second abutting portion 6012 formed by bending toward the eccentric portion 301 and abutting on the eccentric portion 301, the fourth elastic portion 603 includes a portion extending from the third elastic portion 602 to the eccentric portion 301
  • the two second elastic parts 601 are clamped on both sides of one eccentric part 301 respectively, the two fourth elastic parts 603 are clamped on both sides of the other eccentric part 301 respectively, and the two second elastic parts 302 are respectively clamped on both sides of the other eccentric part 301. Abutting against the side surface 1012 of the main body portion 101 of the casing 10, the two eccentric portions 301 are suspended in the housing space 103 of the casing 10.
  • Embodiment 4 of the present application provides a rotary vibration motor 400. Please refer to FIG. 15.
  • the difference between the rotary vibration motor 400 and the rotary vibration motor 100 in the first embodiment is that the coil 201 is provided in the hollow part.
  • the magnet 202 is arranged on the side surface 1012 of the housing 10, and the other parts are the same as the preferred embodiment of the second embodiment.
  • Embodiment 5 of the present application provides a rotary vibration motor 500.
  • the rotary vibration motor 500 includes a housing 10 with a receiving space 103, a drive assembly, and a vibration assembly.
  • the drive assembly includes two coils 201 and
  • the magnet 202 is arranged corresponding to the two coils 201.
  • the coil 201 and the magnet 202 are at least partially arranged opposite to each other to generate driving force.
  • the vibration assembly includes two vibrator parts 30 and the two vibrator parts 30 are supported and suspended in the receiving space 103
  • the structure of the housing 10 the structure and arrangement of the two coils 201 and the two vibrator parts 30 are the same as those of the first embodiment, and the structure and arrangement of the spring 60
  • the manner is the same as that of Example 3.
  • Embodiment 6 of the present application provides a rotary vibration motor 600. Please refer to FIG. 17. As shown in FIG. 17, the difference between the rotary vibration motor 200 and the rotary vibration motor 100 in Embodiment 1 is that one of the vibrator parts 30 further includes a fan-shaped part 302. The other vibrator part 30 does not include a fan-shaped part, and the other parts are the same as those in the first embodiment. For the same parts as in the first embodiment, please refer to the content recorded in the first embodiment, which will not be repeated in this embodiment.
  • the structure and arrangement of the fan-shaped portion 302 are the same as those in the second embodiment. For details, refer to the description of the second embodiment.
  • one of the vibrator parts 30 includes an eccentric part 301 and a fan-shaped part 302, and the other vibrator part 30 only includes an eccentric part 301.
  • the masses of the two vibrator parts are different.
  • the resonant frequencies of the two vibrator parts are different, thereby realizing double f0 vibration.

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

Abstract

本申请涉及电机技术领域，具体涉及一种旋转振动电机。本申请的旋转振动电机包括壳体、驱动组件和振动组件，振动组件包括两个振子部以及连接所述两个振子部的弹簧件，所述振子部包括远离旋转中心的呈弧形设置的偏心部，两个所述偏心部相对于所述旋转中心呈中心对称布置，两个所述偏心部的内凹面相对设置，通过上述方式，两个偏心部进行旋转振动，两个偏心部可以分别单独振动，也可以同时同向振动，振动方式多样，并且，两个偏心部同时同向振动时，有利于增加振动效果，增加加速度。

Description

旋转振动电机 技术领域
本申请涉及电机技术领域，具体涉及一种旋转振动电机。
 背景技术
现有技术的线性振动电机中，振子在驱动力作用下进行线性振动，振动形式单一，振动效果有待提高。因此，有必要提供一种新的振动电机，解决上述技术问题。
 技术问题
本申请的目的在于提供一种旋转振动电机，解决现有技术中振动形式单一以及振动效果有待提高的技术问题。
 技术解决方案
本申请的技术方案如下：一种旋转振动电机，所述旋转振动电机包括具有收容空间的壳体、设于所述收容空间内的至少一个驱动组件和振动组件，所述驱动组件包括线圈和磁体，所述线圈和所述磁体至少部分相对设置以产生驱动力，所述振动组件包括两个振子部和将两个所述振子部支撑并悬置于所述收容空间的弹簧件，所述振动组件在所述驱动组件的作用下做旋转运动，两个所述振子部包括远离旋转中心的呈弧形设置的偏心部，两个所述偏心部相对于所述旋转中心呈中心对称布置，两个所述偏心部的内凹面相对设置。
优选地，所述线圈固定于所述壳体，所述磁体固定于所述振子部。
优选地，所述线圈固定于所述振子部，所述磁体固定于所述壳体。
优选地，还包括设于所述旋转中心的固定轴，所述固定轴设于所述壳体上，所述弹簧件包括套设于所述固定轴的固定部以及用于夹持所述偏心部的第一弹性部，所述第一弹性部包括从所述固定部向所述偏心部延伸的连接部以及从所述连接部靠近所述偏心部的一端向所述偏心部弯折形成的与所述偏心部抵接的抵接部。
优选地，其中至少一个所述振子部还包括与所述偏心部连接的扇形部，所述扇形部的圆弧端与所述偏心部的顶部或底部连接，所述扇形部的圆心处形成有套设于所述固定轴的环形部。
优选地，两个所述振子部均包括所述扇形部，其中一个所述振子部的扇形部的圆弧端与所述偏心部的顶部连接，另一个所述振子部的扇形部的圆弧端与所述偏心部的底部连接。
优选地，所述弹簧件直接固定于所述壳体。
优选地，所述弹簧件包括两个相互配合的弹性部，所述弹性部由一弹性件连续弯折形成，所述弹性部包括依次连接的用于夹持其中一个所述偏心部的第二弹性部、与所述壳体的侧壁抵接的第三弹性部以及用于夹持另一个所述偏心部的第四弹性部，所述第二弹性部包括从所述第三弹性部向所述偏心部延伸的第二连接部以及从所述第二连接部靠近所述偏心部的一端向所述偏心部弯折形成的与所述偏心部抵接的第二抵接部，所述第四弹性部包括从所述第三弹性部向所述偏心部延伸的第四连接部以及从所述第四连接部靠近所述偏心部的一端向所述偏心部弯折形成的与所述偏心部抵接的第四抵接部。
优选地，所述磁体设于所述偏心部的顶端，所述线圈设于所述壳体的内表面。
优选地，所述偏心部的外凸面形成有挖空部，所述磁体设于所述挖空部内。
优选地，所述偏心部的外凸面形成有挖空部，所述线圈设于所述挖空部内，所述磁体设于所述壳体内表面上。
优选地，所述线圈包括两个，两个所述线圈分别与两个所述磁体相对设置。
优选地，所述壳体包括具有收容空间的主体部以及与所述主体部配合的盖部，所述线圈包括一个，所述线圈设于所述盖部的内表面。
优选地，两个所述振子部形状相同。
 有益效果
本申请的有益效果在于：本申请的旋转振动电机包括壳体、驱动组件和振动组件，振动组件包括两个振子部以及连接所述两个振子部的弹簧件，所述振子部包括远离旋转中心的呈弧形设置的偏心部，两个所述偏心部相对于所述旋转中心呈中心对称布置，两个所述偏心部的内凹面相对设置，通过上述方式，两个偏心部进行旋转振动，两个偏心部可以分别单独振动，也可以同时同向振动，振动方式多样，并且，两个偏心部同时同向振动时，有利于增加振动效果，增加加速度。
 附图说明
图1为本申请实施例1的旋转振动电机的立体透视图；
图2为本申请实施例1的旋转振动电机的去除盖部的立体图；
图3为本申请实施例1的旋转振动电机的去除盖部的另一视角的立体图；
图4为本申请实施例1的旋转振动电机的A-A向剖视图；
图5为本申请实施例1的旋转振动电机的结构分解图；
图6为本申请实施例2的旋转振动电机的去除盖部的立体图；
图7为本申请实施例2的旋转振动电机的中壳体内部元件的立体图；
图8为本申请实施例2的优选实施方式的旋转振动电机中壳体内部元件的立体图；
图9为本申请实施例2的旋转振动电机的结构分解图；
图10为本申请实施例3的旋转振动电机的去除盖部的立体图；
图11为本申请实施例3的旋转振动电机中振子部与弹簧部配合示意图；
图12为本申请实施例3的旋转振动电机的结构分解图；
图13为本申请实施例3的旋转振动电机的B-B向剖视图；
图14为本申请实施例3的旋转振动电机中的部分立体图；
图15为本申请实施例4的旋转振动电机的去除盖部的立体图；
图16为本申请实施例5的旋转振动电机的部分分解示意图；
图17为本申请实施例6的旋转振动电机的部分分解示意图。
 本发明的实施方式
下面结合附图和实施方式对本申请作进一步说明。
需要说明的是，本申请的说明书和权利要求书及上述附图中的术语“第一”、“第二”和“第三”等是用于区别不同对象，而非用于描述特定顺序。此外，术语“包括”以及它们任何变形，意图在于覆盖不排他的包含。例如包含了一系列步骤或单元的过程、方法、系统、产品或设备没有限定于已列出的步骤或单元，而是可选地还包括没有列出的步骤或单元，或可选地还包括对于这些过程、方法、产品或设备固有的其它步骤或单元。
本申请实施例中所有方向性指示(诸如上、下、左、右、前、后、内、外、顶部、底部……)仅用于解释在某一特定姿态(如附图所示)下各部件之间的相对位置关系等，如果该特定姿态发生改变时，则该方向性指示也相应地随之改变。当元件被称为“固定于”或“设置于”另一个元件上时，该元件可以直接在另一个元件上或者可能同时存在居中元件。当一个元件被称为“连接”另一个元件，它可以是直接连接另一个元件或者可能同时存在居中元件。
实施例1
本申请实施例1提供了一种旋转振动电机100，请参阅图1至图5所示，所述旋转振动电机100包括具有收容空间103的壳体10、设于收容空间103内的驱动组件20和振动组件，驱动组件20包括两个线圈201以及分别与两个线圈201对应设置的磁体202，线圈201和磁体202至少部分相对设置以产生驱动力，振动组件包括两个振子部30以及将两个振子部30支撑并悬置于所述收容空间103的弹簧件40，其中，壳体10包括具有收容空间103的主体部101以及与主体部101配合的盖部102，主体部101包括底面1011和围绕底面1011设置的侧面1012；线圈201和磁体202组成的驱动组件用于驱动振动组件进行旋转振动，在本实施例中，振子部30包括一个呈弧形设置的偏心部301，偏心部301悬设于壳体10的收容空间103内，偏心部301包括相对设置的内凹面3011和外凸面3012，两个偏心部301的内凹面3011相对设置，两个偏心部301的外凸面3012朝向壳体10的主体部101的侧面1012设置，具体地，两个偏心部301相对于旋转中心30c呈中心对称布置，实现旋转振动。
在本实施例中，在旋转中心10c处设有固定轴50，也就是说，两个偏心部301相对于固定轴50呈中心对称布置，固定轴50的一端固定于壳体10的主体部101的底面1011上，底面1011上设有与固定轴50配合的通孔1013，固定轴50的另一端固定于壳体10的盖体102上，壳体10的盖体102上设有与固定轴50的另一端相配合的通孔1021，弹簧件40包括套设于固定轴50的固定部401以及用于夹持偏心部301的第一弹性部402，在本实施例中，第一弹性部402设置有两个，两个第一弹性部402分别与两个偏心部301对应设置，第一弹性部402包括从所述固定部401向所述偏心部301延伸的连接部4021以及从所述连接部4021靠近所述偏心部301的一端向所述偏心部301弯折形成的与所述偏心部301抵接的抵接部4022。
偏心部301的外凸面3012形成有挖空部3013，所述磁体202设于所述挖空部3013内，线圈201设置有两个，两个所述线圈201分别与两个所述磁体202相对设置，所述线圈201设于所述壳体10的侧面1012上。
请参阅图3所示，线圈201通电后产生磁场，与磁体202相互作用产生驱动力，驱动力驱动振动单元30的偏心部301旋转振动，两个偏心部301的振动方向可以同时向左（图3所示方向S1和方向S2），二者叠加的加速度的方向向左；两个偏心部301的振动方向可以同时向右（图3所示方向S3和方向S4），二者叠加的加速度的方向向右。当然，两个偏心部301也可以单独振动，例如，图3中位于上方的偏心部301沿着方向S1振动、或图3中位于上方的偏心部301沿着方向S3振动、或图3中位于下方的偏心部301沿着方向S2振动、图3中位于下方的偏心部301沿着方向S4振动。
在本实施例中，可通过调整夹持偏心部301的第一弹性部402刚度，例如，如图3所示，夹持位于上方的偏心部301的第一弹性部402的刚度为K1，夹持位于下方的偏心部301的第一弹性部402的刚度为K2，实现两个偏心部301的谐振频率不同，进而实现双f0振动。
实施例2
本申请实施例2提供了一种旋转振动电机200，请参阅图6至图9所示，旋转振动电机200与实施例1中的旋转振动电机100的区别在于，振子部30还包括扇形部302，其他部分均与实施例1相同，与实施例1相同的部分请参阅实施例1记载的内容，本实施例中不再进行一一赘述。
具体地，两个振子部30还包括与所述偏心部301连接的扇形部302，其中一个振子部30的所述扇形部302的圆弧端与所述偏心部301的顶部（靠近盖部的一端）连接，另一个振子部30的扇形部302的圆弧端与所述偏心部301的底部（远离盖部的一端）连接，所述扇形部302的圆心处形成有套设于所述固定轴50的环形部3021。
两个扇形部302的环形部3021分别位于固定部401的上下两端。
在一个可选的实施方式中，请参阅图8所示，本实施例的旋转振动电机200中，第一弹性部402设置有四个，每两个第一弹性部402与一个偏心部301对应设置，两个第一弹性部402分别将偏心部301的两侧夹持。
实施例3
本申请实施例3提供了一种旋转振动电机300，请参阅图10至图14所示，旋转振动电机300包括具有收容空间103的壳体10、驱动组件和振动组件，驱动组件包括一个线圈201以及与线圈201对应设置的两个磁体202，线圈201和磁体202至少部分相对设置以产生驱动力，振动组件包括两个振子部30以及将两个振子部30支撑并悬置于所述收容空间103的弹簧件60，其中，壳体10包括具有收容空间103的主体部101以及与主体部101配合的盖部102，主体部101包括底面1011和围绕底面1011设置的侧面1012；线圈201和磁体202组成的驱动组件用于驱动振动组件进行旋转振动，在本实施例中，振子部30包括一个呈弧形设置的偏心部301，偏心部301悬设于壳体10的收容空间103内，偏心部301包括相对设置的内凹面3011和外凸面3012，两个偏心部301的内凹面3011相对设置，两个偏心部301的外凸面3012朝向壳体10的主体部101的侧面1012设置，具体地，两个偏心部301相对于旋转中心30c呈中心对称布置，实现旋转振动。
在本实施例中，弹簧件60包括两个相互配合的弹性部60a，所述弹性部60a由一弹性件连续弯折形成，两个弹性部60a对称设置，所述弹性部60a包括依次连接的用于夹持其中一个所述偏心部301的第二弹性部601、与所述壳体10的侧面1012抵接的第三弹性部602以及用于夹持另一个所述偏心部301的第四弹性部603，所述第二弹性部601包括从所述第三弹性部602向所述偏心部301延伸的第二连接部6011以及从所述第二连接部6011靠近所述偏心部301的一端向所述偏心部301弯折形成的与所述偏心部301抵接的第二抵接部6012，所述第四弹性部603包括从所述第三弹性部602向所述偏心部301延伸的第四连接部6031以及从所述第四连接部6031靠近所述偏心部301的一端向所述偏心部301弯折形成的与所述偏心部301抵接的第四抵接部6032。通过两个第二弹性部601分别夹持于其中一个偏心部301的两侧，两个第四弹性部603分别夹持于另一个偏心部301的两侧，以及两个第二弹性部302分别抵接于壳体10的主体部101的侧面1012，将两个偏心部301悬空架设在壳体10的收容空间103内。
本实施例与实施例1和实施例2的区别还在于，磁体202设于所述偏心部301的顶端（靠近盖部的一端），所述线圈201设于所述壳体10的盖体102上。
实施例4
本申请实施例4提供了一种旋转振动电机400，请参阅图15所示，旋转振动电机400与实施例1中的旋转振动电机100的区别在于，所述线圈201设于所述挖空部3013内，所述磁体202设于所述壳体10的侧面1012上，其他部分均与实施例2的优选实施方式相同。
实施例5
本申请实施例5提供了一种旋转振动电机500，请参阅图16所示，旋转振动电机500包括具有收容空间103的壳体10、驱动组件和振动组件，驱动组件包括两个线圈201以及分别与两个线圈201对应设置的磁体202，线圈201和磁体202至少部分相对设置以产生驱动力，振动组件包括两个振子部30以及将两个振子部30支撑并悬置于所述收容空间103的弹簧件60，本实施例的旋转振动电机400中，壳体10的结构、两个线圈201以及两个振子部30的结构和设置方式均与实施例1相同，弹簧件60的结构与设置方式与实施例3相同，具体分别参见实施例1和实施例3的记载。
实施例6
本申请实施例6提供了一种旋转振动电机600，请参阅图17所示，旋转振动电机200与实施例1中的旋转振动电机100的区别在于，其中一个振子部30还包括扇形部302，另一个振子部30不包括扇形部，其他部分均与实施例1相同，与实施例1相同的部分请参阅实施例1记载的内容，本实施例中不再进行一一赘述。
扇形部302的结构和设置方式与实施例2相同，具体参见实施例2的记载。
在本实施例中，其中一个振子部30包括偏心部301和扇形部302，另一个振子部30只包括偏心部301，两个振子部的质量不同，通过调整两个振子部的质量大小，实现两个振子部的谐振频率不同，进而实现双f0振动。
以上所述的仅是本申请的实施方式，在此应当指出，对于本领域的普通技术人员来说，在不脱离本申请创造构思的前提下，还可以做出改进，但这些均属于本申请的保护范围。 

Claims (14)

1、一种旋转振动电机，其特征在于，所述旋转振动电机包括具有收容空间的壳体、设于所述收容空间内的至少一个驱动组件和振动组件，所述驱动组件包括线圈和磁体，所述线圈和所述磁体至少部分相对设置以产生驱动力，所述振动组件包括两个振子部和将两个所述振子部支撑并悬置于所述收容空间的弹簧件，所述振动组件在所述驱动组件的作用下做旋转运动，两个所述振子部包括远离旋转中心的呈弧形设置的偏心部，两个所述偏心部相对于所述旋转中心呈中心对称布置，两个所述偏心部的内凹面相对设置。
2、根据权利要求1所述的旋转振动电机，其特征在于：所述线圈固定于所述壳体，所述磁体固定于所述振子部。
3、根据权利要求1所述的旋转振动电机，其特征在于：所述线圈固定于所述振子部，所述磁体固定于所述壳体。
4、根据权利要求2或3所述的旋转振动电机，其特征在于：还包括设于所述旋转中心的固定轴，所述固定轴设于所述壳体上，所述弹簧件包括套设于所述固定轴的固定部以及用于夹持所述偏心部的第一弹性部，所述第一弹性部包括从所述固定部向所述偏心部延伸的连接部以及从所述连接部靠近所述偏心部的一端向所述偏心部弯折形成的与所述偏心部抵接的抵接部。
5、根据权利要求2或3所述的旋转振动电机，其特征在于：其中至少一个所述振子部还包括与所述偏心部连接的扇形部，所述扇形部的圆弧端与所述偏心部的顶部或底部连接，所述扇形部的圆心处形成有套设于所述固定轴的环形部。
6、根据权利要求5所述的旋转振动电机，其特征在于：两个所述振子部均包括所述扇形部，其中一个所述振子部的扇形部的圆弧端与所述偏心部的顶部连接，另一个所述振子部的扇形部的圆弧端与所述偏心部的底部连接。
7、根据权利要求2或3所述的旋转振动电机，其特征在于：所述弹簧件直接固定于所述壳体。
8、根据权利要求7所述的旋转振动电机，其特征在于：所述弹簧件包括两个相互配合的弹性部，所述弹性部由一弹性件连续弯折形成，所述弹性部包括依次连接的用于夹持其中一个所述偏心部的第二弹性部、与所述壳体的侧壁抵接的第三弹性部以及用于夹持另一个所述偏心部的第四弹性部，所述第二弹性部包括从所述第三弹性部向所述偏心部延伸的第二连接部以及从所述第二连接部靠近所述偏心部的一端向所述偏心部弯折形成的与所述偏心部抵接的第二抵接部，所述第四弹性部包括从所述第三弹性部向所述偏心部延伸的第四连接部以及从所述第四连接部靠近所述偏心部的一端向所述偏心部弯折形成的与所述偏心部抵接的第四抵接部。
9、根据权利要求2所述的旋转振动电机，其特征在于：所述磁体设于所述偏心部的顶端，所述线圈设于所述壳体的内表面。
10、根据权利要求2所述的旋转振动电机，其特征在于：所述偏心部的外凸面形成有挖空部，所述磁体设于所述挖空部内。
11、根据权利要求3所述的旋转振动电机，其特征在于：所述偏心部的外凸面形成有挖空部，所述线圈设于所述挖空部内，所述磁体设于所述壳体内表面上。
12、根据权利要求10所述的旋转振动电机，其特征在于：所述线圈包括两个，两个所述线圈分别与两个所述磁体相对设置。
13、根据权利要求10所述的旋转振动电机，其特征在于：所述壳体包括具有收容空间的主体部以及与所述主体部配合的盖部，所述线圈包括一个，所述线圈设于所述盖部的内表面。
14、根据权利要求1所述的旋转振动电机，其特征在于：两个所述振子部形状相同。
PCT/CN2020/078126 2020-02-28 2020-03-06 旋转振动电机 WO2021168895A1 (zh)

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JPH05305270A (ja) * 1992-04-27 1993-11-19 Namiki Precision Jewel Co Ltd 振動アクチュエータ
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