WO2025002243A1 - 振动装置及电子设备 - Google Patents

振动装置及电子设备 Download PDF

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Publication number
WO2025002243A1
WO2025002243A1 PCT/CN2024/101945 CN2024101945W WO2025002243A1 WO 2025002243 A1 WO2025002243 A1 WO 2025002243A1 CN 2024101945 W CN2024101945 W CN 2024101945W WO 2025002243 A1 WO2025002243 A1 WO 2025002243A1
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WO
WIPO (PCT)
Prior art keywords
motor
eccentric wheel
motor group
vibration device
turntable
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2024/101945
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English (en)
French (fr)
Inventor
彭晓光
和宇庆朝邦
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Goertek Inc
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Goertek Inc
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Filing date
Publication date
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Publication of WO2025002243A1 publication Critical patent/WO2025002243A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/06—Means for converting reciprocating motion into rotary motion or vice versa
    • H02K7/061—Means for converting reciprocating motion into rotary motion or vice versa using rotary unbalanced masses
    • H02K7/063—Means for converting reciprocating motion into rotary motion or vice versa using rotary unbalanced masses integrally combined with motor parts, e.g. motors with eccentric rotors
    • 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
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/27—Rotor cores with permanent magnets
    • H02K1/2793—Rotors axially facing stators
    • H02K1/2795—Rotors axially facing stators the rotor consisting of two or more circumferentially positioned magnets
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/06—Means for converting reciprocating motion into rotary motion or vice versa
    • H02K7/065—Electromechanical oscillators; Vibrating magnetic drives
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/06—Means for converting reciprocating motion into rotary motion or vice versa
    • H02K7/075—Means for converting reciprocating motion into rotary motion or vice versa using crankshafts or eccentrics

Definitions

  • the present invention relates to the technical field of vibration devices, and in particular to a vibration device and an electronic device.
  • the main purpose of the present invention is to provide a vibration device and an electronic device, aiming to solve the technical problem that the motor in the prior art cannot provide anisotropic rotation.
  • the present invention provides a vibration device, including a first motor group and a second motor group, wherein the first motor group and the second motor group each include two turntable motors, and the four turntable motors are arranged in a horizontal direction, and each of the turntable motors includes:
  • a limiting member wherein the limiting member is used to abut against the eccentric wheel to limit the rotation angle of the eccentric wheel.
  • the eccentric wheel is a semicircular wheel.
  • the magnetic assembly includes a magnetic member and a mass member connected to the magnetic member, and the mass member is rotatably connected to the rotating shaft.
  • the mass member is a mass ring disposed around the periphery of the magnetic member, and the mass ring is rotatably connected to the rotating shaft.
  • the limiting member is an arc segment, the center of the limiting member, the center of the eccentric wheel, and the center of the rotating shaft are concentrically arranged, and the difference between the center angle of the eccentric wheel and the center angle of the limiting member is 90°.
  • the two limit members are centrally symmetrical about the midpoint of the center line connecting the two rotating shafts; in the second motor group, the two limit members are centrally symmetrical about the midpoint of the center line connecting the two rotating shafts.
  • the angular ranges of rotation and reverse rotation of the eccentric wheel are both 0° to 90°; in the first motor group, the two turntable motors have the same rotation direction, and the two turntable motors collide with the two corresponding limit members at the same time; in the second motor group, the two turntable motors have the same rotation direction, and the two turntable motors collide with the two corresponding limit members at the same time.
  • the two turntable motors of the first motor group are respectively a first motor and a second motor
  • the two turntable motors of the second motor group are respectively a third motor and a fourth motor
  • the first motor and the third motor are adjacently arranged
  • the second motor and the fourth motor are adjacently arranged; taking the perpendicular bisector of the line connecting the center of the rotating shaft of the first motor and the center of the rotating shaft of the third motor as the symmetry line, the limiting members of the first motor group and the limiting members of the second motor group are symmetrically arranged.
  • a buffer member is disposed on the surface of the limiting member.
  • the present invention further provides an electronic device, comprising a housing and the vibration device as described above and arranged in the housing.
  • the vibration device includes a first motor group and a second motor group, each of the first motor group and the second motor group includes two turntable motors, the four turntable motors are arranged in a horizontal direction, and each turntable motor includes a stator, an eccentric mover and a limiter: the stator includes a coil assembly; the eccentric mover includes a rotating shaft and an eccentric wheel, and the coil assembly is arranged at the top and/or bottom of the eccentric wheel; the eccentric wheel includes a magnetic assembly rotatably mounted on the rotating shaft; the limiter is used to abut against the eccentric wheel to limit the rotation angle of the eccentric wheel.
  • the coil assembly of the turntable motor is arranged at the top and/or bottom of the eccentric wheel.
  • the magnetic assembly of the eccentric wheel is first magnetized. Specifically, the magnetization direction can be perpendicular to the paper surface. Then, the coil assembly is energized. According to Ampere's law, the coil on the coil assembly will be subjected to torque. Since the coil is fixed, the coil will also give a reaction force to the magnetic assembly, thereby driving the eccentric wheel to rotate.
  • the center of rotation of the eccentric wheel is the axis of the rotating shaft.
  • the mass distribution of the eccentric wheel is not uniform, so the center of mass of the eccentric wheel is not at the same point as the center of rotation of the eccentric wheel, which can produce a vibration when rotating.
  • the invention is achieved by setting four horizontal
  • the four turntable motors are divided into two groups, each group includes two turntable motors.
  • the turntable motor includes an eccentric mover
  • the eccentric mover includes an eccentric wheel
  • the center of mass of the eccentric mover is not at the center of the rotating shaft.
  • the first motor group and the second motor group are controlled separately, which can produce asymmetric rotation, that is, anisotropic rotation.
  • the eccentric mover is an eccentric structure, it will have a sense of vibration when rotating. Compared with the prior art that requires an additional eccentric block to be added to the rotating shaft, the invention can produce a sense of vibration by improving the eccentric wheel structure, which is beneficial to increasing the motor speed and reducing energy consumption.
  • FIG1 is a schematic structural diagram of a vibration device according to an embodiment of the present invention.
  • FIG3 is a schematic diagram of the initial state structure of the vibration device according to an embodiment of the present invention (the coil assembly is hidden);
  • FIG4 is a schematic diagram of a first motor group of a vibration device according to an embodiment of the present invention rotating to brake;
  • FIG5 is a schematic diagram of the resultant force acting on the vibration device in the state of FIG4;
  • FIG6 is a schematic diagram of a first motor group of a vibration device according to an embodiment of the present invention rotating in the reverse direction to brake;
  • FIG7 is a schematic diagram of the resultant force acting on the vibration device in the state of FIG6;
  • FIG8 is a schematic diagram of a second motor group of a vibration device according to an embodiment of the present invention rotating to brake;
  • FIG9 is a schematic diagram of the resultant force acting on the vibration device in the state of FIG8 ;
  • FIG10 is a schematic diagram of a second motor group of a vibration device according to an embodiment of the present invention rotating in the reverse direction to brake;
  • FIG11 is a schematic diagram of the resultant force acting on the vibration device in the state of FIG10 ;
  • FIG. 12 is a schematic structural diagram of a position-limiting member according to an embodiment of the present invention.
  • vibration device 110, first motor group; 120, second motor group; 10, turntable motor; 101, first motor; 102, second motor; 103, third motor; 104, fourth motor; 1, eccentric mover; 11, eccentric wheel; 111, magnetic component; 1111, magnetic part; 1112, mass block; 12, turntable Shaft; 2. stator; 21. coil; 3. housing; 4. limiter; 41. first limit surface; 42. second limit surface; 43. arc segment.
  • a vibration device 100 comprising a first motor group 110 and a second motor group 120, wherein the first motor group 110 and the second motor group 120 each comprise two turntable motors 10, wherein the four turntable motors 10 are arranged in a horizontal direction, and each turntable motor 10 comprises a stator 2, an eccentric mover 1 and a limit member 4:
  • the stator 2 comprises a coil assembly;
  • the eccentric mover 1 comprises a rotating shaft 12 and an eccentric wheel 11, and the coil assembly is arranged at the top and/or bottom of the eccentric wheel 11;
  • the eccentric wheel 11 comprises a magnetic assembly 111 rotatably mounted on the rotating shaft 12;
  • the limit member 4 is used to abut against the eccentric wheel 11 to limit the rotation angle of the eccentric wheel 11.
  • the coil assembly of the turntable motor 10 is arranged at the top and/or bottom of the eccentric wheel 11.
  • the coil assembly is placed on the top of the eccentric wheel 11, can be set at the bottom of the eccentric wheel 11, or can be set at the top and bottom of the eccentric wheel 11.
  • the magnetic assembly 111 of the eccentric wheel 11 is magnetized. Specifically, the magnetization direction can be perpendicular to the paper surface, and then the coil assembly is energized. According to Ampere's law, the energized coil 21 on the coil assembly will be subjected to torque. Since the coil 21 is fixed, the coil 21 will also give a reaction force to the magnetic assembly 111, thereby driving the eccentric wheel 11 to rotate.
  • the center of rotation of the eccentric wheel 11 is the axis of the rotating shaft 12, and the mass distribution of the eccentric wheel 11 is not uniform. Therefore, the center of mass of the eccentric wheel 11 and its center of rotation are not at the same point, and a vibration can be generated during rotation.
  • This embodiment sets four turntable motors 10 in the horizontal direction.
  • the four turntable motors 10 are divided into two groups, each group includes two turntable motors 10. Since the turntable motor 10 includes an eccentric mover 1, and the eccentric mover 1 includes an eccentric wheel 11, the center of mass of the eccentric mover 1 is not at the center of the rotating shaft 12.
  • the first motor group 110 and the second motor group 120 are controlled separately, which can produce asymmetric rotation, that is, anisotropic rotation.
  • the eccentric mover 1 since the eccentric mover 1 is an eccentric structure, it will have a sense of vibration when rotating. Compared with the prior art that requires an additional eccentric block to be added to the rotating shaft 12, this embodiment can produce a sense of vibration by improving the structure of the eccentric wheel 11, which is beneficial to increasing the motor speed and reducing energy consumption.
  • the turntable motor 10 used in the present application is not provided with an iron core in structure compared to other motors, so there is no cogging torque.
  • the cogging torque will cause the motor to generate vibration and noise. If the cogging torque is too large, the motor may stop at a position where the cogging torque is too large and stop rotating.
  • the existence of cogging torque will also cause the motor to have speed fluctuations, so that the motor cannot run smoothly, affecting the performance of the motor.
  • the torque pulsation frequency is consistent with the mechanical resonance frequency of the stator or rotor, the vibration and noise generated by the cogging torque will be amplified.
  • the existence of cogging torque also affects the low-speed performance of the motor in the speed control system and the high-precision positioning in the position control system. Therefore, this embodiment adopts the turntable motor 10 to make the vibration device 100 run more smoothly and with less noise.
  • the eccentric wheel 11 is a semicircular wheel.
  • the shape of the eccentric wheel 11 can be various, and can be a semicircular wheel or a U-shaped wheel. Those skilled in the art can set it according to actual needs. Those skilled in the art can understand that when the maximum rotation angle of the eccentric wheel 11 is required to be 90°, it needs to be specifically set according to the shape of the limiter 4.
  • the magnetic assembly 111 includes a magnetic member 1111 and a mass member 1112 connected to the magnetic member 1111, and the mass member 1112 is rotatably connected to the rotating shaft 12.
  • the magnetic member 1111 is subjected to the Ampere force, generating a torque to rotate the eccentric wheel 11.
  • the magnetic member 1111 can be a permanent magnet
  • the mass member 1112 is generally made of a material with a relatively high density, such as lead or tungsten alloy.
  • the density of the mass member 1112 is much greater than that of the permanent magnet, and when the size is set, the mass of the mass member 1112 will also be set to be one degree larger than that of the permanent magnet. In some cases, the vibration sensation can be increased by setting the mass member 1112.
  • the mass member 1112 is a mass ring disposed around the periphery of the magnetic member 1111, and the mass ring is rotatably connected to the rotating shaft 12.
  • the mass member 1112 is designed to be disposed in a ring shape around the periphery of the magnetic member 1111, which can not only firmly fix the magnetic member 1111 and protect the magnetic member 1111 from being broken by collision, but also because the mass member 1112 has a large mass, the eccentric effect of being disposed on the periphery is more obvious, and the vibration generated is stronger.
  • the magnetic member 1111 can be semicircular
  • the mass ring is a semicircular ring disposed around the periphery of the magnetic member 1111.
  • the magnetic assembly 111 includes a magnetic member 1111, and the magnetic member 1111 is rotatably connected to the rotating shaft 12.
  • the mass member 1112 may not be provided, and the magnetic member 1111 may be directly rotatably installed on the rotating shaft 12.
  • the magnetic member 1111 is subjected to the Ampere force, generating a torque to rotate the eccentric wheel 11. At this time, the mass center of the magnetic member 1111 does not coincide with the center of the rotating shaft 12, and an eccentric effect can also be generated. At this time, the magnetic member 1111 may be a semicircle.
  • the angular range of rotation and reverse rotation of the eccentric wheel 11 is 0° to 90°;
  • the stopper 4 is a circular arc segment 43, the center of the stopper 4, the center of the eccentric wheel 11, and the center of the rotating shaft 12 are concentrically arranged, and the difference between the central angle of the eccentric wheel 11 and the central angle of the stopper 4 is 90°.
  • the stopper 4 can actually be a quarter of a circular arc segment 43, and the corresponding central angle is 90°.
  • the eccentric wheel 11 can be a semicircular wheel, and the corresponding central angle is 180°. Because the stopper 4 and the eccentric wheel 11 are concentrically arranged, the difference between the central angles of the two is 90°, thereby limiting the angular range of rotation and reverse rotation of the eccentric wheel 11 to 0° to 90°.
  • Each limiting member 4 includes a first limiting surface 41, a second limiting surface 42, and a first limiting surface 41. 42 and a guide surface, the first limiting surface 41 and the second limiting surface 42 of the limiting member 4 can respectively abut against the first abutting surface and the second abutting surface of the corresponding eccentric wheel 11 to limit the rotation angle of the eccentric wheel 11.
  • the centers of the four rotating shafts 12 are located at the four vertices of a square.
  • the four turntable motors 10 are respectively located at the four vertices of the square, that is, the turntable motors 10 are distributed in a 2*2 array.
  • Such a symmetrical design can effectively offset the unnecessary force components when the turntable motors 10 of the first motor group 110 and the second motor group 120 rotate.
  • the angle range of rotation and reverse rotation of the eccentric wheel 11 is 0° to 90°; in the first motor group 110, the two turntable motors 10 rotate in the same direction, and the two turntable motors 10 collide with the two corresponding stoppers 4 at the same time; in the second motor group 120, the two turntable motors 10 rotate in the same direction, and the two turntable motors 10 collide with the two corresponding stoppers 4 at the same time.
  • the angle range of rotation of the eccentric wheel 11 is 0° to 90°, and the eccentric wheel 11 collides with the stopper 4 every time it rotates 90°, and then rotates in the opposite direction.
  • the two stoppers 4 are centrally symmetrical about the midpoint of the center line connecting the two rotating shafts 12; in the second motor group 120, the two stoppers 4 are centrally symmetrical about the midpoint of the center line connecting the two rotating shafts 12 of the two turntable motors 10 of the second motor group 120.
  • the same rotation direction means that the two turntable motors 10 rotate clockwise or counterclockwise at the same time.
  • State 1 counterclockwise rotation state, the process of the first motor group 110 moving from the state shown in FIG. 3 to the state shown in FIG. 4, the state shown in FIG. 3 is regarded as the initial state of the vibration device 100, the first motor group 110 moves from the state shown in FIG. 3 to the state shown in FIG. 4, referring to FIG. 3, the two motors on the left of FIG. 3 are the first motor group 110, and the two motors on the right are the second motor group 120, and the first motor group 110 and the second motor group 120 can be controlled separately. Assuming that the position in FIG. 3 is the initial position, the two turntable motors 10 of the first motor group 110 are controlled to rotate counterclockwise at the same time, referring to FIG.
  • the two turntable motors 10 of the second motor group 120 are controlled to rotate clockwise at the same time, referring to FIG9, during the rotation process, the y-direction components generated during the rotation of the two turntable motors 10 cancel each other, leaving only the x-direction component, producing a feeling of clockwise rotation, until it moves to the position shown in FIG8; when the turntable motor 10 collides with the limiter 4, the centrifugal force disappears, leaving only the braking forces F3 and F4, producing a feeling of clockwise rotation.
  • the turntable motor 10 includes an eccentric mover 1
  • the eccentric mover 1 includes an eccentric wheel 11
  • the center of mass of the eccentric mover 1 is not at the center of the rotating shaft 12
  • the first motor group 110 and the second motor group 120 are controlled separately, and asymmetric rotation, that is, anisotropic rotation, can be generated.
  • the two turntable motors 10 of the first motor group 110 are respectively the first motor 101 and the second motor 102
  • the two turntable motors 10 of the second motor group 120 are respectively the third motor 103 and the fourth motor 104
  • the first motor 101 and the third motor 103 are arranged adjacent to each other
  • the second motor 102 and the fourth motor 104 are arranged adjacent to each other
  • the perpendicular midline of the line connecting the center of the rotating shaft 12 of the first motor 101 and the center of the rotating shaft 12 of the third motor 103 is taken as the symmetry line
  • the perpendicular midline of the line connecting the center of the rotating shaft 12 of the first motor 101 and the center of the rotating shaft of the third motor 103 is taken as the symmetry line
  • the limiting member 4 of the first motor 101 and the limiting member 4 of the second motor group 120 are symmetrically arranged. With such a design, the first motor 101 and the third motor 103 can be controlled to be driven in reverse at the same time, or the second motor
  • a buffer is provided on the surface of the stopper 4, and the buffer is a rubber layer or a foam layer.
  • the buffer is provided on the contact surface of the stopper 4 for contacting the eccentric wheel 11.
  • the stopper 4 can be made of metal material to improve strength and support, and the buffer is used to reduce noise and buffer impact force and prevent damage.
  • the buffer can be made of foam or rubber material.
  • the vibration device 100 further includes a housing 3, the turntable motor 10 is disposed in the housing 3, and the housing 3 is formed with a mounting hole for mounting the limit member 4.
  • the housing 3 may include an upper shell and a lower shell, the upper shell is formed with an upper through hole for mounting the limit member 4, and the lower shell is formed with a lower through hole for mounting the limit member 4.
  • the upper through hole and the lower through hole are arranged opposite to each other, and the limit member 4 can be mounted on the upper through hole and the lower through hole by a snap-on manner.
  • the coil assembly may include only the coil 21, and the coil 21 is fixed on the housing 3, or may include a coil frame and the coil 21 arranged on the coil frame, and the coil frame is installed on the housing 3 to provide support for the winding of the coil 21.
  • the present invention further provides an electronic device, the electronic device comprising a housing and the above-mentioned vibration device 100 disposed in the housing. Since the electronic device comprises all technical solutions of all embodiments of the above-mentioned vibration device 100, it has all the beneficial effects brought by all the above-mentioned technical solutions, which are not described one by one here.
  • the above-mentioned electronic device can be a mobile phone or a game controller, etc.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

本发明提供一种振动装置及电子设备，振动装置包括第一电机组和第二电机组，第一电机组和第二电机组均包括两个转盘电机，四个转盘电机沿水平方向设置，各转盘电机包括定子、偏心动子和限位件：定子包括线圈组件；偏心动子包括转轴和偏心轮，线圈组件设置于偏心轮顶部和/或底部；偏心轮包括转动安装于转轴的磁性组件；限位件用以限制偏心轮的转动角度。该振动装置通过设置四个水平方向的转盘电机，四个转盘电机分为两组，每一组包括两个转盘电机，第一电机组和第二电机组分别单独控制，可以产生非对称旋转，也即异向性旋转。

Description

振动装置及电子设备 技术领域
本发明涉及振动装置技术领域，尤其涉及一种振动装置及电子设备。
背景技术
振动电机广泛存在于各行各业，是一种把电能转换成机械能的一种装置，现有的振动电机大多为线性电机动子，在平衡位置附近往复运动时产生的旋转为对称性旋转，不能产生非对称性旋转(异向性旋转)。
鉴于此，有必要提供一种新的振动装置及电子设备，以解决或至少缓解上述技术缺陷。鉴于此，有必要提供一种新的振动装置及电子设备，以解决或至少缓解上述技术缺陷。
发明内容
本发明的主要目的是提供一种振动装置及电子设备，旨在解决现有技术中的电机无法提供异向性旋转的技术问题。
为实现上述目的，根据本发明的一个方面，本发明提供一种振动装置，包括第一电机组和第二电机组，所述第一电机组和所述第二电机组均包括两个转盘电机，四个所述转盘电机沿水平方向设置，各所述转盘电机包括：
定子，所述定子包括线圈组件；
偏心动子，所述偏心动子包括转轴和偏心轮，所述线圈组件设置于所述偏心轮顶部和/或底部；所述偏心轮包括转动安装于所述转轴的磁性组件；
限位件，所述限位件用于与所述偏心轮抵接以限制所述偏心轮的转动角度。
在一实施例中，所述偏心轮为半圆形轮。
在一实施例中，所述磁性组件包括磁性件和与所述磁性件连接的质量件，所述质量件与所述转轴转动连接。
在一实施例中，所述质量件为围设于所述磁性件外围的质量环，所述质量环与所述转轴转动连接。
在一实施例中，所述限位件为圆弧段，所述限位件的圆心、所述偏心轮的圆心、所述转轴的中心同心设置，所述偏心轮的圆心角与所述限位件的圆心角的差值为90°。
在一实施例中，所述第一电机组中，两个所述限位件关于两个所述转轴的中心连线的中点成中心对称；所述第二电机组中，两个所述限位件关于两个所述转轴的中心连线的中点成中心对称。
在一实施例中，所述偏心轮旋转及反向旋转的角度范围均为0°～90°；所述第一电机组中，两个所述转盘电机的旋转方向相同，且两个所述转盘电机与分别对应的两个所述限位件同时碰撞；所述第二电机组中，两个所述转盘电机的旋转方向相同，且两个所述转盘电机与分别对应的两个所述限位件同时碰撞。
在一实施例中，所述第一电机组的两个所述转盘电机分别为第一电机和第二电机，所述第二电机组的两个所述转盘电机分别为第三电机和第四电机，所述第一电机和所述第三电机相邻设置，所述第二电机和所述第四电机相邻设置；以所述第一电机的所述转轴的中心和所述第三电机的所述转轴的中心的连线的中垂线为对称线，所述第一电机组的所述限位件和所述第二电机组的所述限位件对称设置。
在一实施例中，所述限位件的表面设置有缓冲件。
根据本发明的另一方面，本发明还提供一种电子设备，所述电子设备包括外壳和设置于所述外壳内的如上述所述的振动装置。
上述方案中，振动装置包括第一电机组和第二电机组，第一电机组和第二电机组均包括两个转盘电机，四个转盘电机沿水平方向设置，各转盘电机包括定子、偏心动子和限位件：定子包括线圈组件；偏心动子包括转轴和偏心轮，线圈组件设置于偏心轮顶部和/或底部；偏心轮包括转动安装于转轴的磁性组件；限位件用于与偏心轮抵接以限制偏心轮的转动角度。转盘电机的线圈组件设置于偏心轮的顶部和/或底部，先给偏心轮的磁性组件充磁，具体地，充磁方向可以为垂直于纸面的方向，然后给线圈组件通电，根据安培定律，这样线圈组件上的线圈会受到扭矩，由于线圈是固定不动的，线圈同时会给磁性组件一个反作用力，从而驱动偏心轮转动，偏心轮转动的中心就是转轴的轴线，而偏心轮的质量分布不是均匀的，因此偏心轮的质心与其转动的中心不在同一点上，在转动时可以产生震感。该发明通过设置四个水平方 向的转盘电机，四个转盘电机分为两组，每一组包括两个转盘电机，由于转盘电机包括偏心动子，偏心动子包括偏心轮，偏心动子的质心并不在转轴的中心上，第一电机组和第二电机组分别单独控制，可以产生非对称旋转，也即异向性旋转。并且，由于偏心动子是偏心结构，因此在转动时会自带震感。相比于现有技术中要在转轴上额外增加偏心块而言，该发明通过偏心轮结构的改进即可产生震感，有利于电机转速的提高和减少能源消耗。
附图说明
为了更清楚地说明本发明实施方式或现有技术中的技术方案，下面将对实施方式或现有技术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发明的一些实施方式，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示出的结构获得其他的附图。
图1为本发明实施例振动装置的结构示意图；
图2为本发明实施例转盘电机的结构示意图；
图3为本发明实施例振动装置的初始状态结构示意图(隐藏线圈组件)；
图4为本发明实施例振动装置的第一电机组旋转到制动的一示意图；
图5为图4状态下振动装置所受的合力示意图；
图6为本发明实施例振动装置的第一电机组反向旋转到制动的一示意图；
图7为图6状态下振动装置所受的合力示意图；
图8为本发明实施例振动装置的第二电机组旋转到制动的一示意图；
图9为图8状态下振动装置所受的合力示意图；
图10为本发明实施例振动装置的第二电机组反向旋转到制动的一示意图；
图11为图10状态下振动装置所受的合力示意图；
图12为本发明实施例限位件的的结构示意图。
标号说明：
100、振动装置；110、第一电机组；120、第二电机组；10、转盘电机；101、第一电机；102、第二电机；103、第三电机；104、第四电机；1、偏心动子；11、偏心轮；111、磁性组件；1111、磁性件；1112、质量块；12、转 轴；2、定子；21、线圈；3、壳体；4、限位件；41、第一限位面；42、第二限位面；43、圆弧段。
本发明目的的实现、功能特点及优点将结合实施方式，参照附图做进一步说明。
具体实施方式
下面将结合本发明实施方式中的附图，对本发明实施方式中的技术方案进行清楚、完整地描述，显然，所描述的实施方式仅仅是本发明的一部分实施方式，而不是全部的实施方式。基于本发明中的实施方式，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施方式，都属于本发明保护的范围。
需要说明，本发明实施方式中所有方向性指示(诸如上、下……)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、运动情况等，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。
另外，在本发明中如涉及“第一”、“第二”等的描述仅用于描述目的，而不能理解为指示或暗示其相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。
并且，本发明各个实施方式之间的技术方案可以相互结合，但是必须是以本领域普通技术人员能够实现为基础，当技术方案的结合出现相互矛盾或无法实现时应当认为这种技术方案的结合不存在，也不在本发明要求的保护范围之内。
参照图1～图3，根据本发明的一个方面，本发明提供一种振动装置100，包括第一电机组110和第二电机组120，第一电机组110和第二电机组120均包括两个转盘电机10，四个转盘电机10沿水平方向设置，各转盘电机10包括定子2、偏心动子1和限位件4：定子2包括线圈组件；偏心动子1包括转轴12和偏心轮11，线圈组件设置于偏心轮11顶部和/或底部；偏心轮11包括转动安装于转轴12的磁性组件111；限位件4用于与偏心轮11抵接以限制偏心轮11的转动角度。
转盘电机10的线圈组件设置于偏心轮11的顶部和/或底部，线圈组件设 置于偏心轮11的顶部，可以设置于偏心轮11的底部，也可以在偏心轮11的顶部和底部都设置线圈组件。先给偏心轮11的磁性组件111充磁，具体地，充磁方向可以为垂直于纸面的方向，然后给线圈组件通电，根据安培定律，这样线圈组件上的通电的线圈21会受到扭矩，由于线圈21是固定不动的，线圈21同时会给磁性组件111一个反作用力，从而驱动偏心轮11转动，偏心轮11转动的中心就是转轴12的轴线，而偏心轮11的质量分布不是均匀的，因此偏心轮11的质心与其转动的中心不在同一点上，在转动时可以产生震感。该实施例通过设置四个水平方向的转盘电机10，四个转盘电机10分为两组，每一组包括两个转盘电机10，由于转盘电机10包括偏心动子1，偏心动子1包括偏心轮11，偏心动子1的质心并不在转轴12的中心上，第一电机组110和第二电机组120分别单独控制，可以产生非对称旋转，也即异向性旋转。并且，由于偏心动子1是偏心结构，因此在转动时会自带震感。相比于现有技术中要在转轴12上额外增加偏心块而言，该实施例通过偏心轮11结构的改进即可产生震感，有利于电机转速的提高和减少能源消耗。
此外，还需要说明的是，本申请中采用转盘电机10，相比于其他电机而言，转盘电机10在结构上没有设置铁芯，故没有齿槽转矩的存在。具体地，齿槽转矩会使电机产生振动和噪音，如果齿槽转矩过大时，电机还可能停在齿槽转矩过大的位置停止转动。齿槽转矩的存在还会使得电机会出现转速波动，使电机不能平稳运行，影响电机的性能。在变速驱动中，当转矩脉动频率与定子或转子的机械共振频率一致时，齿槽转矩产生的振动和噪声将被放大。齿槽转矩的存在同样影响了电机在速度控制系统中的低速性能和位置控制系统中的高精度定位。因此，该实施例采取转盘电机10使得振动装置100的运行更平稳、噪音更小。
参照图2，在一实施例中，偏心轮11为半圆形轮。偏心轮11的形状可以多样，可以是半圆形的轮，也可以是U型轮，本领域技术人员可以根据实际需要进行设置。本领域技术人员可以理解，当需要偏心轮11的最大旋转角度为90°时，需要根据限位件4的形状进行具体设定。
参照图2，在一实施例中，磁性组件111包括磁性件1111和与磁性件1111连接的质量件1112，质量件1112与转轴12转动连接。磁性件1111受到安培力，产生扭矩使得偏心轮11转动，磁性件1111可以是永磁铁，质量件1112一般采用密度较大的材料制成，如铅或者钨合金。质量件1112的密度比永磁铁的密度大的多，设置大小时也会将质量件1112的质量设置的比永磁铁大一 些，通过设置质量件1112可以增加震感。这里磁性件1111和质量件1112的连接方式可以多样。只要能够确保偏心轮11的质心与转轴12中心不重合即可。如可以将质量件1112嵌设于磁性件1111内，也可以质量件1112和磁性件1111绕转轴12的外周交替设置，还可以将质量件1112设置于磁性件1111的外周。质量件1112的数量也可以为多个，多个质量件1112可以间隔分布。该实施例通过设置质量件1112能够增加转盘电机10的震感。
参照图2，在一实施例中，质量件1112为围设于磁性件1111外围的质量环，质量环与转轴12转动连接。将质量件1112设计成环状围设于磁性件1111的外围，既可以牢固的固定磁性件1111和保护磁性件1111不受碰撞而破裂，还因为质量件1112的质量较大，设置于外围偏心效果更加明显，产生的震感更强。具体地，磁性件1111可以是半圆形，质量环是绕设磁性件1111外围的半圆形环。
在一实施例中，磁性组件111包括磁性件1111，磁性件1111与转轴12转动连接。当然，也可以不设置质量件1112，将磁性件1111直接转动安装于转轴12，磁性件1111受到安培力，产生扭矩使得偏心轮11转动，此时，磁性件1111的质心与转轴12的中心不重合，同样能够产生偏心效果。此时，磁性件1111可以是一个半圆形。
在一实施例中，偏心轮11旋转及反向旋转的角度范围均为0°～90°；限位件4为圆弧段43，限位件4的圆心、偏心轮11的圆心、转轴12的中心同心设置，偏心轮11的圆心角与限位件4的圆心角的差值为90°。设计差值为90°，即偏心轮11的圆心角-限位件4的圆心角＝90°，是通过限位件4限制偏心轮11旋转的转动角度的最大值为90°，具体地，限位件4实际可以是一个四分之一的圆弧段43，对应的圆心角为90°，偏心轮11可以是半圆形轮，对应的圆心角为180°，因为限位件4和偏心轮11同心设置，因此，两者的圆心角差值为90°，以此限定偏心轮11旋转及反向旋转的角度范围均为0°～90°。
参照图12，在一实施例中，限位件4包括第一限位面41和第二限位面42，偏心轮11包括第一抵接面和第二抵接面，第一限位面41用于与第一抵接面抵接，第二限位面42用于与第二抵接面抵接，第一限位面41与第二限位面42垂直设置。偏心轮11的数量和限位件4的数量均为四个，每一限位件4对应一偏心轮11设置，每一限位件4分别用于对对应的偏心轮11进行转动角度的限位。每一个限位件4包括一个第一限位面41、一个第二限位面 42和一个导向面，限位件4的第一限位面41和第二限位面42能够分别与对应的偏心轮11的第一抵接面和第二抵接面抵接，限制偏心轮11的旋转的转动角度。
在一实施例中，四个转轴12的中心位于正方形的四个顶点上。四个转盘电机10分别位于正方形的四个顶点上，即转盘电机10呈现出2*2的阵列分布。这样的对称设计，可以有效抵消第一电机组110和第二电机组120的转盘电机10转动时将不需要的力的分量相互抵消。
在一实施例中，偏心轮11旋转及反向旋转的角度范围均为0°～90°；第一电机组110中，两个转盘电机10的旋转方向相同，且两个转盘电机10与分别对应的两个限位件4同时碰撞；第二电机组120中，两个转盘电机10的旋转方向相同，且两个转盘电机10与分别对应的两个限位件4同时碰撞。偏心轮11旋转的角度范围为0°～90°，偏心轮11每旋转90°则与限位件4碰撞，并随后反方向转动。在一具体地实施例中，第一电机组110中，两个限位件4关于两个转轴12的中心连线的中点成中心对称；第二电机组120中，两个限位件4关于第二电机组120的两个转盘电机10的两个转轴12的中心连线的中点成中心对称。旋转方向相同指两个转盘电机10同时顺时针旋转或同时逆时针旋转。参照图3～图11，通过驱动不同的电机组进行不同旋转方向的运动，其中F1代表第一电机101产生的制动力，F2代表第二电机102产生的制动力，F3代表第三电机103产生的制动力，F4代表第四电机104产生的制动力，该振动装置100至少有四个运动状态：
状态一，逆时针旋转状态，第一电机组110由图3所示状态运动到图4所述状态的过程，将图3所示状态视为振动装置100的初始状态，第一电机组110由图3所述状态运动至图4所示状态，参照图3，图3左边两个电机为第一电机组110，右边两个电机为第二电机组120，第一电机组110和第二电机组120能够分别控制。假设图3中位置为初始位置，控制第一电机组110的两个转盘电机10同时逆时针旋转，参照图5，转动过程中，转盘电机10转动过程中产生的y向分力相互抵消，只留x向分量，产生逆时针旋转的感觉，直至运动到图4所示位置；转盘电机10与限位件4碰撞时，离心力消失，仅留下制动力F1和F2，产生逆时针旋转的感觉。
状态二，无旋转感状态，第一电机组110由图4所述状态运动至图6所示状态的过程，当第一电机组110的两个转盘电机10碰到限位件4后，驱动第一电机组110的两个转盘电机10反向旋转，即顺时针转动，此时，参照图 7，转动过程中，两个转盘电机10转动过程中产生的x向分力相互抵消，y向分力也相互抵消，无旋转及平动的感觉，直至运动到图6所示位置；转盘电机10与限位件4碰撞时，离心力消失，制动力F1和F2大小相等方向相反，相互抵消，无旋转及平动的感觉。
状态三，顺时针旋转状态，第二电机组120由图6所示状态运动到图8所述状态的过程，第二电机组120由图6所述状态运动至图8所示状态，图6左边两个电机为第一电机组110，右边两个电机为第二电机组120，第一电机组110和第二电机组120能够分别控制。假设图6中右边的第二电机组120的位置为初始位置，控制第二电机组120的两个转盘电机10同时顺时针旋转，参照图9，转动过程中，两个转盘电机10转动过程中产生的y向分力相互抵消，只留x向分量，产生顺时针旋转的感觉，直至运动到图8所示位置；转盘电机10与限位件4碰撞时，离心力消失，仅留下制动力F3和F4，产生顺时针旋转的感觉。
状态四，无旋转感状态，第一电机组110由图8所述状态运动至图10所示状态的过程，当第二电机组120的两个转盘电机10碰到限位件4后，驱动第二电机组120的两个转盘电机10反向旋转，即逆时针转动，参照图11，此时，两个转盘电机10转动过程中产生的x向分力相互抵消，y向分力也相互抵消，无旋转及平动的感觉；转盘电机10与限位件4碰撞时，离心力消失，制动力F3和F4大小相等方向相反，相互抵消，无旋转及平动的感觉。
总之，如果仅逆时针驱动左侧的第一电机组110的两个转盘电机10旋转，可产生逆时针旋转的感觉，反向驱动左侧的第一电机组110的两个转盘电机10则无旋转及平动感觉；只顺时针驱动右侧的第二电机组120的两个转盘电机10，可产生顺时针旋转的感觉，反向驱动右侧的第二电机组120的两个转盘电机10则无旋转及平动感觉。由于转盘电机10包括偏心动子1，偏心动子1包括偏心轮11，偏心动子1的质心并不在转轴12的中心上，第一电机组110和第二电机组120分别控制，可以产生非对称旋转，也即异向性旋转。
参照图1，在一实施例中，第一电机组110的两个转盘电机10分别为第一电机101和第二电机102，第二电机组120的两个转盘电机10分别为第三电机103和第四电机104，第一电机101和第三电机103相邻设置，第二电机102和第四电机104相邻设置；以第一电机101的转轴12的中心和第三电机103的转轴12的中心的连线的中垂线为对称线，以第一电机101的转轴的中心和第三电机103的转轴的中心的连线的中垂线为对称线，第一电机组110 的限位件4和第二电机组120的限位件4对称设置。如此设计，还可以控制同时反向驱动第一电机101和第三电机103，或者同时反向驱动第二电机102和第四电机104，能够产生非对称性振动。
在一实施例中，限位件4的表面设置有缓冲件，缓冲件为橡胶层或泡棉层。缓冲件设置于限位件4用于与偏心轮11抵接的抵接面上。限位件4可以由金属材料制成，起到提高强度和支撑作用，缓冲件用于减小杂音和起到缓冲撞击力、防止破坏的作用。具体地，缓冲件可以由泡棉或者橡胶材料制成。
在一实施例中，振动装置100还包括壳体3，转盘电机10设置于壳体3内，壳体3形成有安装限位件4的安装孔。壳体3可以包括上壳和下壳，上壳形成有安装限位件4的上通孔，下壳形成有安装限位件4的下通孔。上通孔和下通孔正对设置，可以通过卡接的方式将限位件4安装在上通孔和下通孔上。线圈组件可以仅包括线圈21，线圈21固定于壳体3上，也可以包括圈架和饶设在圈架上的线圈21，圈架安装于壳体3上为线圈21绕设提供支撑。
根据本发明的另一方面，本发明还提供一种电子设备，电子设备包括外壳和设置于外壳内的如上述的振动装置100。由于电子设备包括了上述的振动装置100所有实施例的全部技术方案，因此具有上述全部技术方案带来的所有有益效果，在此不在一一赘述。上述电子设备可以是手机或游戏手柄等。
最后应说明的是：以上各实施例仅用以说明本申请的技术方案，并非因此限制本发明的专利范围；尽管参照前述各实施例对本申请进行了详细的说明，本领域的普通技术人员应当理解：在本发明的技术构思下，其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；或直接/间接运用在其他相关的技术领域，而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例技术方案的范围，其均应涵盖在本申请的权利要求和说明书的范围当中。尤其是，只要不存在结构冲突，各个实施例中所提到的各项技术特征均可以任意方式组合起来。本申请并不局限于文中公开的特定实施例，而是包括落入权利要求的范围内的所有技术方案。

Claims (10)

  1. 一种振动装置，其特征在于，包括第一电机组和第二电机组，所述第一电机组和所述第二电机组均包括两个转盘电机，四个所述转盘电机沿水平方向设置，各所述转盘电机包括：
    定子，所述定子包括线圈组件；
    偏心动子，所述偏心动子包括转轴和偏心轮，所述线圈组件设置于所述偏心轮顶部和/或底部；所述偏心轮包括转动安装于所述转轴的磁性组件；
    限位件，所述限位件用于与所述偏心轮抵接以限制所述偏心轮的转动角度。
  2. 根据权利要求1所述的振动装置，其特征在于，所述偏心轮为半圆形轮。
  3. 根据权利要求1所述的振动装置，其特征在于，所述磁性组件包括磁性件和与所述磁性件连接的质量件，所述质量件与所述转轴转动连接。
  4. 根据权利要求3所述的振动装置，其特征在于，所述质量件为围设于所述磁性件外围的质量环，所述质量环与所述转轴转动连接。
  5. 根据权利要求1所述的振动装置，其特征在于，所述限位件为圆弧段，所述限位件的圆心、所述偏心轮的圆心、所述转轴的中心同心设置，所述偏心轮的圆心角与所述限位件的圆心角的差值为90°。
  6. 根据权利要求1所述的振动装置，其特征在于，所述第一电机组中，两个所述限位件关于两个所述转轴的中心连线的中点成中心对称；所述第二电机组中，两个所述限位件关于两个所述转轴的中心连线的中点成中心对称。
  7. 根据权利要求1～6中任一项所述的振动装置，其特征在于，所述偏心轮旋转及反向旋转的角度范围均为0°～90°；所述第一电机组中，两个所述转盘电机的旋转方向相同，且两个所述转盘电机与分别对应的两个所述限位件同时碰撞；所述第二电机组中，两个所述转盘电机的旋转方向相同，且两个所述转盘电机与分别对应的两个所述限位件同时碰撞。
  8. 根据权利要求1～6中任一项所述的振动装置，其特征在于，所述第一电机组的两个所述转盘电机分别为第一电机和第二电机，所述第二电机组的两个所述转盘电机分别为第三电机和第四电机，所述第一电机和所述第三电机相邻设置，所述第二电机和所述第四电机相邻设置；以所述第一电机的所述转轴的中心和所述第三电机的所述转轴的中心的连线的中垂线为对称线，所述第一电机组的所述限位件和所述第二电机组的所述限位件对称设置。
  9. 根据权利要求1～6中任一项所述的振动装置，其特征在于，所述限位件的表面设置有缓冲件。
  10. 一种电子设备，其特征在于，所述电子设备包括外壳和设置于所述外壳内的如权利要求1～9中任一项所述的振动装置。
PCT/CN2024/101945 2023-06-30 2024-06-27 振动装置及电子设备 Ceased WO2025002243A1 (zh)

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