WO2025002239A1 - 转盘电机组件及电子设备 - Google Patents

转盘电机组件及电子设备 Download PDF

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Publication number
WO2025002239A1
WO2025002239A1 PCT/CN2024/101936 CN2024101936W WO2025002239A1 WO 2025002239 A1 WO2025002239 A1 WO 2025002239A1 CN 2024101936 W CN2024101936 W CN 2024101936W WO 2025002239 A1 WO2025002239 A1 WO 2025002239A1
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WO
WIPO (PCT)
Prior art keywords
eccentric
limiting
motor assembly
eccentric wheel
turntable motor
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/CN2024/101936
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English (en)
French (fr)
Inventor
彭晓光
和宇庆朝邦
丁海阳
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Goertek Inc
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Goertek Inc
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Filing date
Publication date
Application filed by Goertek Inc filed Critical Goertek Inc
Publication of WO2025002239A1 publication Critical patent/WO2025002239A1/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 turntable motor components, and in particular to a turntable motor component and electronic equipment.
  • Vibration motors are widely used in all walks of life. They are devices that convert electrical energy into mechanical energy. Most existing vibration motors are linear motor rotors. When they reciprocate near the equilibrium position, the vibration they produce is symmetrically distributed and cannot produce asymmetric vibrations (anisotropic vibrations).
  • the main purpose of the present invention is to provide a turntable motor assembly and an electronic device, aiming to solve the technical problem that the motor in the prior art cannot provide anisotropic vibration.
  • the present invention provides a turntable motor assembly, including a limit member and two horizontally arranged turntable motors, each of the turntable motors including a stator and an eccentric mover, the stator including a coil assembly, the eccentric mover including a rotating shaft and an eccentric wheel, 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, and the limit member is used to abut against the two eccentric wheels to limit the rotation angle of each eccentric wheel.
  • the angular ranges of rotation and reverse rotation of the eccentric wheel are both 0° to 90°; the rotation directions of the two turntable motors are opposite, and the two turntable motors collide with the limiter at the same time.
  • the limiting member includes a first limiting surface and two second limiting surfaces
  • each of the eccentric wheels includes a first abutting surface and a second abutting surface
  • the first abutting surface is used to abut against the first limiting surface
  • the second abutting surface is used to abut against the second limiting surface
  • the position-limiting member further comprises two guide surfaces, the two second position-limiting surfaces being The two second limiting surfaces are respectively connected to the first limiting surface through the two guide surfaces, with the perpendicular bisector of the center line connecting the two rotating shafts as the symmetry line, the two second limiting surfaces are mirror-set relative to the symmetry line, the two guide surfaces are mirror-set relative to the symmetry line, and the two second limiting surfaces are both perpendicular to the first limiting surface.
  • the eccentric wheel is a semicircular wheel or a U-shaped 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 magnetic assembly includes a magnetic member, and the magnetic member is rotatably connected to the rotating shaft.
  • 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 above-mentioned turntable motor assembly disposed in the housing.
  • the turntable motor assembly includes a limiter and two horizontally arranged turntable motors, each turntable motor includes a stator and an eccentric mover, 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, and the limiter is used to abut against the two eccentric wheels to limit the rotation angle of each eccentric wheel.
  • the invention sets two horizontal turntable motors, the turntable motor includes an eccentric mover, and the eccentric mover includes an eccentric wheel. The center of mass of the eccentric wheel is not at the center of the rotating shaft.
  • the acceleration generated by the two eccentric wheels during the rotation process and when they hit the limiter to stop is asymmetrically distributed, and the effect produced is that the turntable motor assembly generates asymmetric vibration when working.
  • the eccentric mover since the eccentric mover is an eccentric structure, it will have a sense of vibration when rotating. Compared with the prior art which requires an additional eccentric block to be added to the rotating shaft, this 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. At the same time, by setting up two horizontally placed turntable motors, asymmetric vibration can be generated during operation.
  • FIG1 is a schematic structural diagram of a turntable motor assembly according to an embodiment of the present invention.
  • FIG2 is a schematic structural diagram of a turntable motor assembly according to an embodiment of the present invention (with the coil assembly hidden);
  • FIG3 is a schematic structural diagram of a turntable motor according to an embodiment of the present invention.
  • FIG4 is a schematic structural diagram of a position-limiting member according to an embodiment of the present invention.
  • FIG5 is a schematic diagram of the rotation of the turntable motor assembly according to an embodiment of the present invention.
  • FIG6 is a schematic diagram of the resultant force on the turntable motor assembly in the state of FIG5 ;
  • FIG7 is a schematic diagram of braking of a turntable motor assembly according to an embodiment of the present invention.
  • FIG8 is a schematic diagram of the resultant force on the turntable motor assembly in the state of FIG7;
  • FIG9 is a schematic diagram of a turntable motor assembly rotating in reverse according to an embodiment of the present invention.
  • FIG10 is a schematic diagram of the resultant force on the turntable motor assembly in the state of FIG9 ;
  • FIG11 is a schematic diagram of reverse braking of a turntable motor assembly according to an embodiment of the present invention.
  • FIG12 is a schematic diagram of the resultant force on the turntable motor assembly in the state of FIG11;
  • FIG. 13 is a waveform diagram of an input voltage signal and an acceleration signal when the turntable motor assembly rotates according to an embodiment of the present invention.
  • Turntable motor assembly 10. Turntable motor; 1. Eccentric mover; 11. Eccentric wheel; 111. Magnetic assembly; 1111. Magnetic member; 1112. Mass member; 12. Rotating shaft; 13. First abutting surface; 14. Second abutting surface; 2. Stator; 21. Coil; 3. Housing; 4. Limiting member; 41. First limiting surface; 42. Second limiting surface; 43. Guide surface.
  • a turntable motor assembly 100 comprising a limit member 4 and two horizontally arranged turntable motors 10, each turntable motor 10 comprising a stator 2 and an eccentric mover 1, the stator 2 comprising a coil assembly, the eccentric mover 1 comprising a rotating shaft 12 and an eccentric wheel 11, the coil assembly being arranged at the top and/or bottom of the eccentric wheel 11; the eccentric wheel 11 comprising a magnetic assembly 111 rotatably mounted on the rotating shaft 12, the limit member 4 being used to abut against the two eccentric wheels 11 to limit the rotation angle of each 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 arranged at the top of the eccentric wheel 11, and can be arranged at the bottom of the eccentric wheel 11, or at both the top and the bottom of the eccentric wheel 11.
  • the magnetic assembly 111 of the eccentric wheel 11 is first magnetized. Specifically, the magnetization direction can be a direction perpendicular to the paper surface. Then, the coil assembly is energized. According to Ampere's law, the coil 21 on the coil assembly will be subjected to torque. Since the coil 21 is fixed, the coil 21 will also give the magnetic assembly 111 a reaction torque force, 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 two horizontal turntable motors 10, the turntable motors 10 include an eccentric mover 1, the eccentric mover 1 includes an eccentric wheel 11, the center of mass of the eccentric wheel 11 is not at the center of the rotating shaft 12, and the accelerations generated by the two eccentric wheels 11 during the rotation process and when they hit the limiter 4 and stop are asymmetrically distributed, resulting in an asymmetrical vibration of the turntable motor assembly 100 during operation.
  • the eccentric mover 1 is an eccentric structure, so it will have a vibration when rotating.
  • this embodiment can generate a vibration by improving the structure of the eccentric wheel 11, which is beneficial to increasing the motor speed and reducing energy consumption.
  • asymmetric vibration can be generated during operation.
  • 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 rotating at a position where the cogging torque is too large.
  • the existence of cogging torque will also cause the motor to experience 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 turntable motor assembly 100 run more smoothly and with less noise.
  • the angular range of rotation and reverse rotation of the eccentric wheel 11 is 0° to 90°; the rotation directions of the two turntable motors 10 are opposite, and the two turntable motors 10 collide with the stopper 4 at the same time.
  • the maximum rotation angle of the eccentric wheel 11 referred to here is 90°. After the rotation of 90° collides with the stopper 4 and stops, it can be reversely rotated 90° and collide with the stopper 4 again to stop.
  • the two turntable motors 10 have the same structure, equal rotation speed and torque, but opposite rotation directions.
  • the opposite rotation directions of the two turntable motors 10 refer to: one turntable motor 10 rotates clockwise and the other turntable motor 10 rotates counterclockwise, and there will be no situation where the two turntable motors 10 rotate clockwise or counterclockwise at the same time, referring to Figures 8 and 12, and the collision of the two turntable motors 10 with the corresponding stopper 4 occurs at the same time, and the collision force is generated at the same time. During the collision, the centrifugal force disappears, leaving only the component in the y direction.
  • the limiting member 4 includes a first limiting surface 41 and two second limiting surfaces 42
  • each eccentric wheel 11 includes a first abutting surface 13 and a second abutting surface 14.
  • the first abutting surface 13 is used to abut against the first limiting surface 41
  • the second abutting surface 14 is used to abut against the second limiting surface 42.
  • the number of the first limiting surface 41 is one
  • the number of the second limiting surface 42 and the guide surface 43 are both two
  • the first limiting surface 41 can abut against the two first abutting surfaces 13 at the same time to limit the rotation angle of the eccentric wheel 11
  • the two second limiting surfaces 42 respectively abut against the second abutting surfaces 14 of the two eccentric wheels 11 to limit the rotation angle of the eccentric wheel 11, that is, the first limiting surface
  • the surface 41 and the second limiting surface 42 can be used to limit the rotation and reverse rotation angles of the eccentric wheel 11, respectively.
  • the center of the rotating shaft 12 is also the rotation center of the eccentric wheel 11.
  • the centers of the two rotating shafts 12 are connected to form a line segment, which is the center line of the rotating shaft 12.
  • the perpendicular bisector of this line segment i.e., the perpendicular bisector, is the symmetry line.
  • the dotted line H in FIG1 represents the symmetry line.
  • the two second limiting surfaces 42 are mirror-imaged relative to the symmetry line, and the two guide surfaces 43 are mirror-imaged relative to the symmetry line, which are also mirror-imaged symmetrically arranged.
  • This design adopts a completely identical structure, which can ensure that the two eccentric wheels 11 collide with the limiting member 4 at the same time, and also ensure that when the two eccentric wheels 11 are rotating and collide with the limiting member 4 at the same time, the centrifugal force disappears during the collision, leaving only the component in the y direction.
  • the limiter 4 further includes two guide surfaces 43, and the two second limit surfaces 42 are respectively connected to the first limit surface 41 through the two guide surfaces 43; the two second limit surfaces 42 are both arranged perpendicular to the first limit surface 41.
  • the two second limit surfaces 42 With the perpendicular bisector of the center line of the two rotating shafts 12 as the symmetry line, the two second limit surfaces 42 are arranged in mirror image with respect to the symmetry line, and the two guide surfaces 43 are arranged in mirror image with respect to the symmetry line.
  • the eccentric wheel 11 can be a semicircular wheel, the center angle of the semicircular wheel is 180°, and the second limit surface 42 is arranged perpendicular to the first limit surface 41 at 90°, so that the rotation and reverse rotation angle range of the eccentric wheel 11 can be limited to 0° to 90°, and asymmetric vibration can be generated.
  • each limit member 4 there are two limit members 4, and the two limit members 4 are respectively arranged corresponding to the two eccentric wheels 11, and each limit member 4 is used to abut against the corresponding eccentric wheel 11 to limit the rotation angle of the eccentric wheel 11.
  • the movements of the two eccentric wheels 11 do not affect each other, and when the two eccentric wheels 11 collide with one limit member 4 at the same time, the vibration generated by one eccentric wheel 11 will not affect the other eccentric wheel 11.
  • each limiting member 4 includes a first limiting surface 41, a second limiting surface 42, and a guide surface 43 connecting the first limiting surface 41 and the second limiting surface 42.
  • Each eccentric wheel 11 includes a first abutting surface 13 and a second abutting surface 14. The first abutting surface 13 is used to abut against the first limiting surface 41, and the second abutting surface 14 is used to abut against the second limiting surface 42.
  • the first limiting surface 41 and the second limiting surface 42 are vertically arranged, and the perpendicular bisector of the center line connecting the two rotating shafts 12 is used as the symmetry line.
  • the two limiting members 4 are mirror-imaged relative to the symmetry line.
  • each limiting member 4 includes a first limiting surface 41, a second limiting surface 42, and a guide surface 43.
  • the first limiting surface 41 and the second limiting surface 42 of a limiting member 4 can respectively abut against the first abutting surface 13 and the second abutting surface 42 of an eccentric wheel 11.
  • the two abutting surfaces 14 abut against each other to limit the rotation angle of one eccentric wheel 11.
  • the first limiting surface 41 and the second limiting surface 42 of the other limiting member 4 can respectively abut against the first abutting surface 13 and the second abutting surface 14 of the other eccentric wheel 11 to limit the rotation angle of the other eccentric wheel 11 and the reverse rotation angle.
  • the center of the rotating shaft 12 is also the rotation center of the eccentric wheel 11.
  • the centers of the two rotating shafts 12 are connected to form a line segment, which is the center line of the rotating shafts 12.
  • the perpendicular bisector of the line segment is used as the symmetry line.
  • the two limiting members 4 are mirrored relative to the symmetry line. This design can ensure that the two eccentric wheels 11 collide with the limiting members 4 at the same time, and also ensure that when the two eccentric wheels 11 hit the limiting members 4 at the same time, the centrifugal force disappears during the collision, leaving only the component in the y direction.
  • the eccentric wheel 11 is a semicircular wheel or a U-shaped 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, and the mass member 1112 is generally made of a material with a higher density, such as lead or tungsten alloy. The density of the mass member 1112 is much greater than that of the permanent magnet.
  • the mass of the mass member 1112 will also be set larger than that of the permanent magnet. By setting the mass member 1112, the sense of vibration can be increased.
  • connection method between the magnetic member 1111 and the mass member 1112 can be various. As long as it can be ensured that the center of mass of the eccentric wheel 11 does not coincide with the center of the rotating shaft 12.
  • the mass member 1112 may be embedded in the magnetic member 1111, or the mass member 1112 and the magnetic member 1111 may be alternately arranged around the outer periphery of the rotating shaft 12, or the mass member 1112 may be arranged on the outer periphery of the magnetic member 1111.
  • the number of mass members 1112 may also be multiple, and the multiple mass members 1112 may be distributed at intervals. This embodiment can increase the vibration of the turntable motor 10 by arranging 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 and the rotating shaft 12 Rotational connection.
  • the mass member 1112 may not be provided, and the magnetic member 1111 may be directly rotatably mounted 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 the eccentric effect can also be generated. At this time, the magnetic member 1111 may be a semicircle.
  • 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 turntable motor assembly 100 also includes a housing 3, the turntable motor 10 is arranged 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 installed on the upper through hole and the lower through hole by snapping.
  • the coil assembly may include only the coil 21, and the coil 21 is fixed on the housing 3, or it 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 turntable motor assembly 100 includes two horizontally arranged turntable motors 10, each turntable motor 10 includes a limit member 4 and two horizontally arranged turntable motors 10, each turntable motor 10 includes a stator 2 and an eccentric mover 1, the stator 2 includes a coil assembly, the coil assembly includes a coil 21, the eccentric mover 1 includes 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 includes a magnetic component 111 rotatably mounted on the rotating shaft 12, the magnetic component 111 includes a magnetic part 1111 and a mass part 1112 arranged on the periphery of the magnetic part 1111, the mass part 1112 is a mass ring arranged around the periphery of the magnetic part 1111, and the limit member 4 is used to abut against the two eccentric wheels 11 to limit the rotation angle of each eccentric wheel 11.
  • F1 represents centrifugal force
  • F2 represents braking force
  • Ftotal represents the resultant force on the turntable motor assembly 100
  • the direction of the rotating thick arrows in Figures 6 and 10 represents the torque force of the eccentric mover 1 on the housing of the turntable motor assembly 100.
  • the mass member 1112 is generally large in mass, so it is considered that the center of mass is on the mass member 1112, and the points on the mass member 1112 selected for force analysis are as follows:
  • FIG6 is a schematic diagram showing the resultant force on the turntable motor assembly 100 during the rotation process; after the rotation starts, the x components of the torque and centrifugal force of the two eccentric movers 1 are equal in magnitude and opposite in direction to cancel each other out, leaving only the y component of the centrifugal force.
  • FIG7 shows that the eccentric wheel 1111 brakes and collides with the limit member 45 after rotating 90 degrees
  • FIG8 shows a schematic diagram of the resultant force on the turntable motor assembly 100 when the collision occurs.
  • the centrifugal force disappears during the collision, and a braking force in the -y direction is generated.
  • FIG. 9 is a schematic diagram showing the reverse rotation of the eccentric wheel 1111 after braking, wherein the turntable motor 10 on the left rotates clockwise and the turntable motor 10 on the right rotates counterclockwise
  • FIG. 10 is a schematic diagram showing the resultant force on the reverse rotating turntable motor assembly 100 , where the x components of the torque and the centrifugal force of the two eccentric movers 1 cancel each other, leaving the y component;
  • Figure 11 shows that the eccentric wheel 1111 rotates 90° in the reverse direction after braking and then returns to the initial position, and collides with the limit member 45 during braking.
  • Figure 12 is a schematic diagram of the resultant force applied to the turntable motor assembly 100 during reverse rotation and braking. At this time, during the collision, the centrifugal force disappears, and the braking forces of the two turntable motors 10 rotors cancel each other out.
  • the vibration generated during the rotation and braking process is an asymmetric vibration.
  • Curve A in Figure 13 represents the electrical signal input by the motor
  • curve B in Figure 13 represents the acceleration signal collected by the acceleration sensor for the turntable motor assembly 100.
  • the horizontal axis represents time
  • the vertical axis on the left represents the input voltage
  • the vertical axis on the right represents the acceleration.
  • the absolute values of the electrical signals input by the motor are basically the same, but the acceleration values of the turntable motor assembly 100 are different, and the waveform of the acceleration signal presents an asymmetric distribution. Therefore, the turntable motor assembly 100 generates asymmetric vibrations.
  • the present invention further provides an electronic device, the electronic device comprising a housing and the above-mentioned turntable motor assembly 100 disposed in the housing. Since the electronic device includes all technical solutions of all embodiments of the above-mentioned turntable motor assembly 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)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

本发明提供一种转盘电机组件及电子设备，转盘电机组件包括限位件和两个水平设置的转盘电机，各转盘电机包括定子和偏心动子，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的顶部和/或底部；偏心轮包括转动安装于转轴的磁性组件，限位件用于与两个偏心轮抵接以限制各偏心轮的转动角度。该转盘电机组件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，同时通过设置两个水平放置的转盘电机，工作过程中能产生非对称性振动。

Description

转盘电机组件及电子设备 技术领域
本发明涉及转盘电机组件技术领域，尤其涉及一种转盘电机组件及电子设备。
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震感为对称性分布，不能产生非对称性振动(异向性振动)。
鉴于此，有必要提供一种新的转盘电机组件及电子设备，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转盘电机组件及电子设备，旨在解决现有技术中的电机无法提供异向性振动的技术问题。
为实现上述目的，根据本发明的一个方面，本发明提供一种转盘电机组件，包括限位件和两个水平设置的转盘电机，各所述转盘电机包括定子和偏心动子，所述定子包括线圈组件，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的顶部和/或底部；所述偏心轮包括转动安装于所述转轴的磁性组件，所述限位件用于与两个所述偏心轮抵接以限制各所述偏心轮的转动角度。
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°；两个所述转盘电机的旋转方向相反，且两个所述转盘电机与所述限位件同时碰撞。
在一实施例中，所述限位件包括第一限位面和两个第二限位面，各所述偏心轮包括第一抵接面和第二抵接面，所述第一抵接面用于与所述第一限位面抵接，所述第二抵接面用于与所述第二限位面抵接。
在一实施例中，所述限位件还包括两个导向面，两个所述第二限位面分 别通过两个所述导向面与所述第一限位面连接，以两个所述转轴的中心连线的中垂线为对称线，两个所述第二限位面相对于所述对称线成镜像设置，两个所述导向面相对于所述对称线成镜像设置，两个所述第二限位面均与所述第一限位面垂直设置。
在一实施例中，所述偏心轮为半圆形轮或U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，所述磁性组件包括磁性件，所述磁性件与所述转轴转动连接。
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转盘电机组件。
上述方案中，转盘电机组件包括限位件和两个水平设置的转盘电机，各转盘电机包括定子和偏心动子，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的顶部和/或底部；偏心轮包括转动安装于转轴的磁性组件，限位件用于与两个偏心轮抵接以限制各偏心轮的转动角度。该发明通过设置两个水平方向的转盘电机，转盘电机包括偏心动子，偏心动子包括偏心轮，偏心轮的质心并不在转轴的中心上，两个偏心轮在旋转过程中及碰到限位件停止时产生的加速度成非对称分布，产生的效果就是转盘电机组件工作时产生了非对称性振动。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，同时通过设置两个水平放置的转盘电机，工作过程中能产生非对称性振动。
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为本发明实施例转盘电机组件的结构示意图；
图2为本发明实施例转盘电机组件的结构示意图(隐藏线圈组件)；
图3为本发明实施例转盘电机的结构示意图；
图4为本发明实施例限位件的结构示意图；
图5为本发明实施例转盘电机组件旋转的一示意图；
图6为图5状态下转盘电机组件所受的合力示意图；
图7为本发明实施例转盘电机组件制动的一示意图；
图8为图7状态下转盘电机组件所受的合力示意图；
图9为本发明实施例转盘电机组件反向旋转的一示意图；
图10为图9状态下转盘电机组件所受的合力示意图；
图11为本发明实施例转盘电机组件反向制动的一示意图；
图12为图11状态下转盘电机组件所受的合力示意图；
图13为本发明实施例转盘电机组件旋转时输入电压信号和加速度信号的波形图。
标号说明：
100、转盘电机组件；10、转盘电机；1、偏心动子；11、偏心轮；111、磁性组件；1111、磁性件；1112、质量件；12、转轴；13、第一抵接面；14、第二抵接面；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、导向面。
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4，根据本发明的一个方面，本发明提供一种转盘电机组件100，包括限位件4和两个水平设置的转盘电机10，各转盘电机10包括定子2和偏心动子1，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的顶部和/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用于与两个偏心轮11抵接以限制各偏心轮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111一个反作用的扭矩力，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。该实施例通过设置两个水平方向的转盘电机10，转盘电机10包括偏心动子1，偏心动子1包括偏心轮11，偏心轮11的质心并不在转轴12的中心上，两个偏心轮11在旋转过程中及碰到限位件4停止时产生的加速度成非对称分布，产生的效果就是转盘电机组件100工作时产生了非对称性振动。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，同时通过设置两个水平放置的转盘电机10，工作过程中能产生非对称性振动。
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使得转盘电机组件100的运行更平稳、噪音更小。
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°；两个转盘电机10的旋转方向相反，且两个转盘电机10与限位件4同时碰撞。这里指的偏心轮11的最大旋转角度为90°，在旋转90°会与限位件4碰撞停止后，可以反向旋转90°再次与限位件4碰撞停止。两个转盘电机10的结构是相同的，旋转速度和扭矩大小相等，但旋转方向相反，两个转盘电机10的旋转方向相反指的是：一个转盘电机10为顺时针转动而另一个转盘电机10为逆时针转动，不会出现两个转盘电机10同时为顺时针转动或同时为逆时针转动的情况，参照图8和图12，并且两个转盘电机10与对应的限位件4碰撞发生在同一时间，碰撞力产生的时间同时，碰撞时，离心力消失，仅留下y方向的分量。
参照图4、图7和图11，在一实施例中，限位件4包括第一限位面41和两个第二限位面42，各偏心轮11包括第一抵接面13和第二抵接面14，第一抵接面13用于与第一限位面41抵接，第二抵接面14用于与第二限位面42抵接。这里指的是限位件4为一个的情况，第一限位面41的数量为一个，第二限位面42和导向面43的数量均为两个，第一限位面41能够同时与两个第一抵接面13抵接，限制偏心轮11的旋转角度，两个第二限位面42分别与两个偏心轮11的第二抵接面14抵接以限制偏心轮11的旋转角度，即第一限位 面41和第二限位面42能够分别用于限制偏心轮11旋转和反向旋转的角度。转轴12的中心也就是偏心轮11的旋转中心，将两个转轴12的中心连接起来形成一个线段，就是转轴12的中心连线，参照图1，这个线段的中垂线即垂直平分线就是对称线，图1中用点划线H表示对称线，两个第二限位面42相对于对称线成镜像设置，两个导向面43相对于对称线成镜像设置，也是镜像对称设置，这样设计采用完全相同的结构，既能保证两个偏心轮11同时与限位件4发生碰撞，也是为了确保当两个偏心轮11旋转过程中及同时碰到限位件4时，碰撞时，离心力消失，仅留下y方向的分量。
参照图1～图4，在一实施例中，限位件4还包括两个两个导向面43，两个第二限位面42分别通过两个导向面43与第一限位面41连接；两个第二限位面42均与第一限位面41垂直设置。以两个转轴12的中心连线的中垂线为对称线，两个第二限位面42相对于对称线成镜像设置，两个导向面43相对于对称线成镜像设置。偏心轮11可以是半圆形轮，半圆形轮的圆心角为180°，第二限位面42与第一限位面41垂直设置成90°，这样可以限制偏心轮11旋转和反向旋转的角度范围均为0°～90°，能够产生非对称性振动。
在一实施例中，限位件4的数量为两块，两块限位件4与两个偏心轮11分别对应设置，各限位件4用于与对应的偏心轮11抵接以限制偏心轮11的转动角度。限位件4的数量也可以为两块，每一块限位件4对应一偏心轮11设置以用于限制对应偏心轮11的转动角度，偏心轮11与各自对应的限位件4碰撞或抵接。这样设计相对于仅涉及一个限位件4而言，两个偏心轮11的运动互不影响，不会因为当两个偏心轮11同时碰撞一个限位件4时，一个偏心轮11产生的振动对另一个偏心轮11造成影响。
在一实施例中，各限位件4包括第一限位面41、第二限位面42以及连接第一限位面41和第二限位面42的导向面43，各偏心轮11包括第一抵接面13和第二抵接面14，第一抵接面13用于与第一限位面41抵接，第二抵接面14用于与第二限位面42抵接，第一限位面41与第二限位面42垂直设置，以两个转轴12的中心连线的中垂线为对称线，两块限位件4相对于对称线呈镜像设置。这里指的是限位件4数量为两个的情况，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43，一个限位件4的第一限位面41和第二限位面42能够分别与一个偏心轮11的第一抵接面13和第 二抵接面14抵接，限制一个偏心轮11的旋转的转动角度，另一个限位件4的第一限位面41和第二限位面42能够分别与另一个偏心轮11的第一抵接面13和第二抵接面14抵接，限制另一个偏心轮11的旋转和反向旋转的转动角度。转轴12的中心也就是偏心轮11的旋转中心，将两个转轴12的中心连接起来形成一个线段，就是转轴12的中心连线，将这个线段的中垂线即垂直平分线作为对称线，两个限位件4相对于对称线成镜像设置，这样设计既能保证两个偏心轮11同时与限位件4发生碰撞，也是为了确保当两个偏心轮11同时碰到限位件4时，碰撞时，离心力消失，仅留下y方向的分量。
在一实施例中，偏心轮11为半圆形轮或U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3，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3，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，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，转盘电机组件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。
为清楚地描述本发明的实现方式，现结合附图对本发明的技术方案和有益效果说明如下:
在一具体地实施例中，转盘电机组件100包括两个水平设置的转盘电机10，各转盘电机10包括限位件4和两个水平设置的转盘电机10，各转盘电机10包括定子2和偏心动子1，定子2包括线圈组件，线圈组件包括线圈21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的顶部和/或底部；偏心轮11包括转动安装于转轴12的磁性组件111，磁性组件111包括磁性件1111和设置于磁性件1111外围的质量件1112，质量件1112为围设于磁性件1111外围的质量环，限位件4用于与两个偏心轮11抵接以限制各偏心轮11的转动角度。
参照图5～图12，其中，F1表示离心力，F2表示制动力，F合表示转盘电机组件100所受的合力，图6和图10中旋转粗箭头方向表示偏心动子1对转盘电机组件100的壳体的扭矩力。需要说明的是，质量件1112一般质量较大，故认为质心在质量件1112上，分析受力时受力点选取的质量件1112上的点。具体地：
参照图5和图6，图5中左边的转盘电机10逆时针转动，右边的转盘电 机10顺时针转动，图6表示转动过程中转盘电机组件100所受的合力示意图；开始旋转后，两个偏心动子1扭矩及离心力的x分量大小相等方向相反相互抵消，仅留下离心力的y分量。
参照图7和图8，图7表示偏心轮1111转动90°后发生制动与限位件45碰撞，图8表示碰撞发生时转盘电机组件100所受的合力示意图，碰撞时离心力消失，分别产生-y方向的制动力。
参照图9和图10，图9表示偏心轮1111制动后反向旋转的示意图，其中，左边的转盘电机10顺时针转动，右边的转盘电机10逆时针转动，图10表示反向旋转转盘电机组件100所受的合力示意图，此时两个偏心动子1扭矩及离心力的x分量相消，留下y分量；
参照图11和图12，图11表示偏心轮1111制动后反向旋转90°后回到初始位置，发生制动与限位件45碰撞，图12表示反向旋转发生制动时转盘电机组件100所受的合力示意图，此时碰撞时，离心力消失，两转盘电机10动子的制动力相互抵消。
由于是偏心动子1，因此在旋转及制动过程中产生的振动为非对称性振动。具体可参照图13，图13中A曲线表示的是电机输入的电信号，图13中B曲线表示的是通过加速度传感器对转盘电机组件100采集的加速度信号，横坐标表示时间，左边纵坐标表示输入电压大小，右边纵坐标表示加速度大小。可以看到，电机输入的电信号的绝对值基本相同，但是转盘电机组件100的加速度值却不同，加速度信号的波形是呈现非对称分布，因此说，转盘电机组件100产生了非对称性振动。
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转盘电机组件100。由于电子设备包括了上述的转盘电机组件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. 一种转盘电机组件，其特征在于，包括限位件和两个水平设置的转盘电机，各所述转盘电机包括定子和偏心动子，所述定子包括线圈组件，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的顶部和/或底部；所述偏心轮包括转动安装于所述转轴的磁性组件，所述限位件用于与两个所述偏心轮抵接以限制各所述偏心轮的转动角度。
  2. 根据权利要求1所述的转盘电机组件，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°；两个所述转盘电机的旋转方向相反，且两个所述转盘电机与所述限位件同时碰撞。
  3. 根据权利要求1所述的转盘电机组件，其特征在于，所述限位件包括第一限位面和两个第二限位面，各所述偏心轮包括第一抵接面和第二抵接面，所述第一抵接面用于与所述第一限位面抵接，所述第二抵接面用于与所述第二限位面抵接。
  4. 根据权利要求3所述的转盘电机组件，其特征在于，所述限位件还包括两个导向面，两个所述第二限位面分别通过两个所述导向面与所述第一限位面连接；以两个所述转轴的中心连线的中垂线为对称线，两个所述第二限位面相对于所述对称线成镜像设置，两个所述导向面相对于所述对称线成镜像设置，两个所述第二限位面均与所述第一限位面垂直设置。
  5. 根据权利要求1～4中任一项所述的转盘电机组件，其特征在于，所述偏心轮为半圆形轮或U形轮。
  6. 根据权利要求1～4中任一项所述的转盘电机组件，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。
  7. 根据权利要求6所述的转盘电机组件，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。
  8. 根据权利要求1～4中任一项所述的转盘电机组件，其特征在于，所述磁性组件包括磁性件，所述磁性件与所述转轴转动连接。
  9. 根据权利要求1～4中任一项所述的转盘电机组件，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中任一项所述的转盘电机组件。
PCT/CN2024/101936 2023-06-30 2024-06-27 转盘电机组件及电子设备 Ceased WO2025002239A1 (zh)

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