WO2025002234A1 - 振动装置及电子设备 - Google Patents

振动装置及电子设备 Download PDF

Info

Publication number
WO2025002234A1
WO2025002234A1 PCT/CN2024/101924 CN2024101924W WO2025002234A1 WO 2025002234 A1 WO2025002234 A1 WO 2025002234A1 CN 2024101924 W CN2024101924 W CN 2024101924W WO 2025002234 A1 WO2025002234 A1 WO 2025002234A1
Authority
WO
WIPO (PCT)
Prior art keywords
eccentric wheel
vibration
vibration device
eccentric
center
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/CN2024/101924
Other languages
English (en)
French (fr)
Inventor
和宇庆朝邦
彭晓光
丁海阳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Goertek Inc
Original Assignee
Goertek Inc
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 Goertek Inc filed Critical Goertek Inc
Publication of WO2025002234A1 publication Critical patent/WO2025002234A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • H02K33/18—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with coil systems moving upon intermittent or reversed energisation thereof by interaction with a fixed field system, e.g. permanent magnets
    • 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.
  • 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 vibration device 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 vibration device, comprising two vibration motors stacked in a vertical direction, each of the vibration motors comprising:
  • stator comprising a coil assembly, the coil assembly forming a cavity
  • An eccentric mover comprising a rotating shaft and an eccentric wheel sleeved on the rotating shaft, the eccentric wheel comprising a magnetic component, and the eccentric wheel is disposed in the cavity and can rotate in the cavity;
  • a limiting member wherein the limiting member is used to limit the rotation angle of the eccentric wheel.
  • the eccentric wheel is formed with a notch, and the limiting member is arranged at the notch.
  • the limiting member is an arc segment
  • the notch is a fan-shaped notch
  • the center of the limiting member, the center of the fan-shaped notch, and the center of the rotating shaft are concentrically arranged, and the difference between the first center angle corresponding to the fan-shaped notch and the second center angle corresponding to the limiting member is 90°.
  • the eccentric wheel rotates at an angle ranging from 0° to 90°; the two vibration motors rotate in opposite directions, and the two vibration motors collide with the two corresponding limit members simultaneously.
  • the center points of the two stoppers and the rotating shaft are projected vertically to the same
  • the line connecting the midpoint and the center point of the line connecting the two limiting members is defined as a symmetry line, and the two limiting members are mirror-imaged relative to the symmetry line.
  • the magnetic assembly includes a magnetic conductive member, a permanent magnet and a mass block, the magnetic conductive member is sleeved on the rotating shaft, and the permanent magnet and the mass block are arranged on the outer periphery of the magnetic conductive member.
  • the permanent magnet includes two sub-magnets, the two sub-magnets are evenly spaced along the outer circumference of the magnetic conductive member, the two sub-magnets are formed with two mounting grooves, the number of the mass block is one, and the mass block is arranged in one of the mounting grooves.
  • the limiting member includes a limiting block and a buffer member, and the buffer member is arranged on a contact surface of the limiting block for contacting with the eccentric wheel.
  • the stator further includes a magnetic conductive ring, and the coil assembly is disposed in the magnetic conductive ring.
  • 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 two vibration motors stacked in the vertical direction, each vibration motor includes a coil assembly, and the coil assembly forms a cavity;
  • the eccentric mover includes a rotating shaft and an eccentric wheel mounted on the rotating shaft, the eccentric wheel includes a magnetic assembly, and the eccentric wheel is arranged in the cavity and can rotate in the cavity;
  • the limiter is used to limit the rotation angle of the eccentric wheel.
  • the invention sets two vibration motors in the horizontal direction, the vibration motor includes an eccentric mover, the eccentric mover includes an eccentric wheel, and the eccentric wheel includes a magnetic assembly.
  • FIG1 is a schematic structural diagram of a vibration device according to an embodiment of the present invention.
  • FIG2 is a schematic structural diagram of a vibration device according to an embodiment of the present invention, in which two vertically stacked vibration motors are horizontally displayed;
  • FIG3 is a schematic structural diagram of a vibration motor according to an embodiment of the present invention.
  • FIG4 is a schematic diagram of the rotation of the vibration device according to an embodiment of the present invention.
  • FIG5 is a schematic diagram of the force of the vibration device in the state of FIG4;
  • FIG6 is a schematic diagram of braking of a vibration device according to an embodiment of the present invention.
  • FIG7 is a schematic diagram of the force of the vibration device in the state of FIG6;
  • FIG8 is a schematic diagram of a reverse rotation of a vibration device according to an embodiment of the present invention.
  • FIG9 is a schematic diagram of the force of the vibration device in the state of FIG8;
  • FIG10 is a schematic diagram of reverse braking of a vibration device according to an embodiment of the present invention.
  • FIG11 is a schematic diagram of the force of the vibration device in the state of FIG10;
  • FIG. 12 is a waveform diagram of an input voltage signal and an acceleration signal when the vibration device according to an embodiment of the present invention rotates;
  • FIG13 is a schematic diagram of an exploded structure of a vibration motor according to an embodiment of the present invention.
  • FIG. 14 is a schematic structural diagram of a stator and an eccentric mover of a vibration motor according to an embodiment of the present invention
  • FIG. 15 is a schematic structural diagram of a magnetic conductive ring and an eccentric mover of a vibration motor according to an embodiment of the present invention
  • 16 is a schematic structural diagram of an eccentric mover of a vibration motor according to an embodiment of the present invention.
  • FIG 17 is another structural schematic diagram of the stator and the eccentric mover of the vibration motor according to an embodiment of the present invention.
  • FIG. 18 is a schematic cross-sectional view of the vibration motor according to an embodiment of the present invention.
  • Vibration device 100. Vibration device; 10. Vibration motor; 1. Eccentric mover; 11. Eccentric wheel; 112. Magnetic assembly; 1121. Permanent magnet; 11211. Sub-magnet; 1122. Mass block; 1123. Magnetic member; 113. Notch; 12. Rotating shaft; 2. Stator; 21. Coil; 22. Magnetic ring; 3. Upper shell; 31. Upper through hole; 4. Lower shell; 41. Lower through hole; 5. Limiting member.
  • the vertically stacked vibration motors 10 are shown to be arranged in a horizontal direction, and the left side of FIG. 2 shows the upper vibration motor 10 of the two stacked vibration motors 10, and the right side of FIG. 2 shows the lower vibration motor 10 of the two stacked vibration motors 10.
  • the present invention provides a vibration device 100, including a vertically stacked vibration motor 10.
  • each vibration motor 10 includes a stator 2, an eccentric mover 1 and a limiter 5, the stator 2 includes a coil 21 assembly, the coil 21 assembly forms a cavity; the eccentric mover 1 includes a rotating shaft 12 and an eccentric wheel 11, the eccentric wheel 11 is formed with a notch 113, the eccentric wheel 11 includes an eccentric wheel 11 which is sleeved on the rotating shaft 12, the eccentric wheel 11 includes a magnetic assembly 112, the eccentric wheel 11 is arranged in the cavity and can rotate in the cavity; the limiter 5 is used to limit the rotation angle of the eccentric wheel 11.
  • the vibration motor 10 first magnetizes the magnetic component 112.
  • the eccentric wheel includes the magnetic component 112.
  • the coil 21 applies a torque to the eccentric wheel 11, drives the eccentric wheel 11 and then rotates the eccentric mover 1.
  • the eccentric mover 1 includes a rotating shaft 12 and an eccentric wheel 11 mounted on the rotating shaft 12.
  • the eccentric wheel 11 includes the magnetic component 112. After the coil 21 is energized, the eccentric wheel 11 is subjected to the torque and rotates.
  • the eccentric mover 1 can be in various forms: for example, the eccentric wheel 11 is a circular disk with uniform mass, but the central axis of the rotating shaft 12 is offset from the center of the eccentric wheel 11; or the rotation center of the eccentric wheel 11 is the axis of the rotating shaft 12, but the eccentric wheel 11 is not a circular disk with uniform mass distribution, such as an elliptical disk. In short, the center of mass and the center of rotation of the eccentric wheel 11 are not at the same point.
  • two vibration motors 10 are stacked in a vertical direction.
  • the vibration motor 10 includes an eccentric mover 1.
  • the eccentric mover 1 includes an eccentric wheel 11.
  • the center of mass is not at the center of the rotating shaft 12, and the accelerations generated by the two eccentric movers 1 during the rotation process and when they stop by hitting the limiter 5 are asymmetrically distributed, resulting in an asymmetrical vibration when the vibration device 100 is working.
  • 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 generate 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 eccentric wheel 11 is formed with a notch 113, and a limiting member 5 is provided at the notch.
  • the notch 113 can be a fan-shaped notch.
  • the stator 2 includes a magnetic ring 22, and the coil assembly is disposed in the magnetic ring 22.
  • the magnetic ring 22 is also called a magnetic yoke, which is a yoke iron made of stacked silicon steel sheets, and is evenly and symmetrically distributed around the coil assembly to restrict leakage magnetic flux from spreading outward.
  • the angular range of rotation of the eccentric wheel 11 is 0° to 90°; the rotation directions of the two vibration motors 10 are opposite, and the two vibration motors 10 collide with the two corresponding limit members 5 at the same time.
  • the angular range of rotation of the eccentric wheel 11 is 0° to 90°, and the eccentric wheel 11 collides with the limit member 5 every time it rotates 90°, and then rotates in the opposite direction.
  • the structures of the two vibration motors 10 are the same, the rotation speed and torque are equal, but the rotation directions are opposite.
  • the opposite rotation directions of the two vibration motors 10 refer to: one vibration motor 10 rotates clockwise and the other vibration motor 10 rotates counterclockwise, and the two vibration motors 10 will not rotate clockwise or counterclockwise at the same time, and the collision of the two vibration motors 10 with the corresponding limit members 5 occurs at the same time.
  • the braking forces of the movers of the two vibration motors 10 cancel each other out, and the centrifugal force disappears.
  • the projections of the two limit members 5 are mirrored relative to the symmetry line. Referring to FIG. 4 and FIG. 5 , by limiting the relative positions of the two limiting members 5 in this way, the two eccentric movers 1 can collide with the corresponding limiting members 5 at the same time.
  • the stopper 5 is an arc segment
  • the notch 113 is a fan-shaped notch 113
  • the center of the stopper 5, the center of the fan-shaped notch 113, and the center of the rotating shaft 12 are concentrically arranged, and the difference between the first center angle corresponding to the fan-shaped notch 113 and the second center angle corresponding to the stopper 5 is 90°.
  • the stopper 5 is an arc segment, the center of the circle corresponding to the arc, the center of the circle corresponding to the fan-shaped notch 113 and the center of the rotating shaft 12 coincide, the first center angle corresponding to the fan-shaped notch 113 is shown as a in Fig. 3, the second center angle corresponding to the stopper 5 is shown as b in Fig. 3, and the difference between a-b is 90°, so that the eccentric wheel 11 can only rotate within the range of 0° to 90°.
  • the vibration device 100 includes two vibration motors 10 stacked in a vertical direction, each vibration motor 10 includes a stator 2, an eccentric mover 1 and a stopper 5, the stator 2 includes a magnetic ring 22 and a coil 21 assembly installed in the magnetic ring 22, and the coil 21 assembly forms a cavity;
  • the eccentric mover 1 includes a rotating shaft 12 and an eccentric wheel 11, the eccentric wheel 11 is formed with a notch 113, the eccentric wheel 11 includes a magnetic member 1123 mounted on the rotating shaft 12 and a magnetic assembly 112 connected to the magnetic member 1123, the eccentric wheel 11 is arranged in the cavity and can rotate in the cavity, and the eccentric wheel 11 rotates
  • the angle range is 0° ⁇ 90°, the two vibration motors 10 rotate in opposite directions, the eccentric wheel 11 includes a permanent magnet 1121 and a mass block 1122;
  • the limiter 5 is arranged at the notch 113 to limit the rotation angle of the eccentric wheel 11, and the center points of the two limiters 5 and the rotating shaft 12 are projected onto the same projection plane along the vertical
  • the magnetic conductive part 1123 and the magnetic component 112 in the figure are symmetrically distributed relative to the center of the rotating shaft 12, and the mass block 1122 is generally larger in mass, so it is considered that the center of mass is on the mass block 1122, and the force is analyzed.
  • the force point is a point on the mass block 1122.
  • the left vibration motor 10 in Figure 4 represents the upper vibration motor 10 of the stacked arrangement rotating counterclockwise
  • the right vibration motor 10 represents the lower vibration motor 10 of the stacked arrangement rotating clockwise
  • Figure 5 shows a schematic diagram of the resultant force received by the vibration device 100 during the rotation process; after the rotation starts, the x components of the torque and centrifugal force received by the two stators 2 are equal in magnitude and opposite in direction and cancel each other out, leaving only the y component of the centrifugal force.
  • the thick curved arrow in Figure 5 shows the direction of the torque received by the stator 2, according to the law of action and reaction. The direction of the torque received by the stator 2 is opposite to that of the mover 1. Since the stator 2 is fixed to the housing, it can also be the torque received by the housing.
  • Figure 8 is a schematic diagram showing the reverse rotation of the eccentric wheel 11 after braking, wherein the vibration motor 10 on the left rotates clockwise and the vibration motor 10 on the right rotates counterclockwise
  • Figure 9 is a schematic diagram showing the resultant force received by the reverse rotating vibration device 100, at which point the x components of the torque and centrifugal force received by the two stators 2 are equal in magnitude and opposite in direction and cancel each other out, leaving the y component;
  • the thick curved arrow in Figure 9 indicates the direction of the torque received by the stator 2, according to the law of action and reaction.
  • the direction of the torque received by the stator 2 is opposite to that of the mover 1. Since the stator 2 is fixed to the housing, it can also be the torque received by the housing.
  • FIG10 shows that the eccentric wheel 11 rotates 90° in the reverse direction after braking and then returns to the initial position, and collides with the limit member 5 when braking occurs.
  • FIG11 shows a schematic diagram of the resultant force exerted on the vibration device 100 when braking occurs during reverse rotation. At this time, the braking forces of the movers of the two vibration motors 10 cancel each other out, and the centrifugal force disappears.
  • the vibration generated during the rotation and braking process is an asymmetric vibration.
  • Curve A in Figure 12 represents the electrical signal input by the motor
  • curve B in Figure 12 represents the acceleration signal collected by the acceleration sensor for the vibration device 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 value of the electrical signal input by the motor is basically the same, but the acceleration value of the vibration device 100 is different, and the waveform of the acceleration signal is asymmetric. Therefore, it can be said that the vibration device 100 produces asymmetric vibration.
  • the magnetic assembly 112 may only include a magnetic member 1123 and a permanent magnet 1121, wherein the magnetic member 1123 is mounted on the rotating shaft 12, and the permanent magnets 1121 are unevenly distributed along the periphery of the magnetic member 1123.
  • the periphery of the magnetic member 1123 refers to a whole circumference around the magnetic member 1123, and the uneven distribution of the permanent magnets 1121 on the periphery of the magnetic member 1123 includes two meanings: first, the number of permanent magnets 1121 is one, and one permanent magnet 1121 is not a complete circle, so the mass distribution of the eccentric wheel 11 is uneven, and the rotation center of the eccentric wheel 11 does not coincide with the center of mass of the eccentric wheel 11.
  • the permanent magnet 1121 includes a plurality of sub-magnets 11211, which are arranged at intervals on the periphery of the magnetic member 1123, and the plurality of sub-magnets 11211 are unevenly distributed along the periphery of the magnetic member 1123.
  • the sub-magnets 11211 have the same size and mass, if the sub-magnets 11211 are evenly spaced along the periphery of the magnetic conductive member 1123, the rotation center of the eccentric wheel 11 will coincide with the mass center of the eccentric wheel 11, and a good vibration effect cannot be generated. Therefore, multiple sub-magnets 11211 are unevenly distributed along the periphery of the magnetic conductive member 1123.
  • the magnetic conductive member 1123 can be formed by stacking iron sheets or silicon steel sheets, which can play a connecting and magnetic conductive role.
  • the coil 21 assembly can include a frame and a coil 21 wound on the frame, the frame is installed on the magnetic conductive ring 22 to provide support for the winding of the coil 21, and the frame forms a cavity for the eccentric wheel 11 to rotate.
  • the frame is installed on the magnetic conductive ring 22 to provide support for the winding of the coil 21, and the frame forms a cavity for the eccentric wheel 11 to rotate.
  • the number of coil 21 assemblies can be two, and the two coil 21 assemblies are arranged at intervals, and the rotating shaft 12 passes through the gap between the two coils 21 and can rotate freely.
  • the magnetic assembly 112 may include a magnetic conductive member 1123, a permanent magnet 1121 and a mass block 1122, the magnetic conductive member 1123 is mounted on the rotating shaft 12, and the permanent magnet 1121 and the mass block 1122 are arranged on the periphery of the magnetic conductive member 1123.
  • the mass block 1122 is generally made of a material with a relatively high density, such as lead or tungsten alloy. The density of the mass block 1122 is much greater than that of the permanent magnet 1121, and when the size is set, the mass of the mass block 1122 will also be set larger than that of the permanent magnet 1121. By setting the mass block 1122, the sense of vibration can be increased.
  • the permanent magnet 1121 includes a plurality of sub-magnets 11211, which are evenly spaced along the periphery of the magnetic conductive member 1123, and a mounting groove capable of accommodating the mass block 1122 is formed between two adjacent sub-magnets 11211.
  • the number of mounting grooves is multiple, and the mass block 1122 is disposed between the plurality of mounting grooves.
  • the multiple sub-magnets 11211 are evenly distributed here in order to make the torque in all directions of the eccentric wheel 11 uniform.
  • Installation slots are formed between adjacent sub-magnets 11211.
  • the number of installation slots is the same as the number of sub-magnets 11211.
  • the number of mass blocks 1122 may be one or more. At most one mass block 1122 is set in each installation slot.
  • the mass blocks 1122 are unevenly distributed in multiple installation slots, because if they are evenly distributed, the center of mass of the eccentric wheel 11 will be at its own rotation center, and a good vibration effect cannot be produced.
  • the number of sub-magnets 11211 is two
  • the number of mass blocks 1122 is one
  • the mass block 1122 is arranged in two sub-magnets 11211 to form two mounting grooves
  • the mass block 1122 is arranged in one of the mounting grooves formed by the two sub-magnets 11211.
  • the two sub-magnets 11211 are spaced apart to form two mounting grooves
  • the number of mass blocks 1122 is one
  • the mass block 1122 is only installed in one of the mounting grooves, thereby making the mass distribution of the eccentric wheel 11 uneven
  • the center of mass of the eccentric wheel 11 does not coincide with the rotation center of the eccentric wheel 11, forming an eccentric structure, which can produce a sense of vibration.
  • This embodiment achieves an ideal sense of vibration with a minimum number of sub-magnets 11211 and mass blocks 1122, and is simple to manufacture and easy to install. It should be noted here that one of the two mounting grooves where the mass block 1122 is not provided is the notch 113 of the eccentric wheel 11 mentioned above. In a specific embodiment, two sides of the mass block 1122 are respectively in contact with the two sub-magnets 11211 , and the connection strength between the mass block 1122 and the two sub-magnets 11211 is higher.
  • the vibration device 100 further includes a limiter 5, which is disposed at the notch 113 to limit the rotation angle of the eccentric wheel 11.
  • the limiter 5 allows the vibration device 100 to swing only within a limited angle, thus becoming a swing motor.
  • the number of the limiter 5 can be one or two, and the two limiters 5 can be disposed at intervals to limit the eccentric wheel 11 from both sides of the notch 113.
  • the limiter 5 includes a limit block and a buffer, and the buffer is arranged on the abutting surface of the limit block for abutting the eccentric wheel 11.
  • the limit block can be made of metal material to improve strength and support, and the buffer is used to reduce noise and buffer impact force.
  • the buffer is a rubber layer or a foam layer.
  • the buffer can be made of foam or rubber material.
  • FIG. 13 shows a schematic diagram of each vibration motor 10 including an upper shell 3 and a lower shell 4.
  • the vibration motor 10 further includes an upper shell 3 and a lower shell 4, the upper shell 3 covers the top surface of the magnetic conductive ring 22, the lower shell 4 covers the bottom surface of the magnetic conductive ring 22, the upper shell 3 is formed with an upper through hole 31 for installing the stopper 5, and the lower shell 4 is formed with a lower through hole 41 for installing the stopper 5.
  • the upper through hole 31 and the lower through hole 41 are arranged opposite to each other, and the stopper 5 can be installed on the upper through hole 31 and the lower through hole 41 by means of a snap connection.
  • the stopper 5 can also be installed on the magnetic conductive ring 22.
  • the four vibration motors 10 can also be arranged together in the accommodation cavity formed by the upper shell 3 body and the lower shell 4 body through an upper shell 3 body and a lower shell 4 body.
  • the vibration device 100 includes a stator 2 and an eccentric mover 1, the stator 2 includes a magnetic ring 22 and two coils 21 arranged in the magnetic ring 22, the eccentric mover 1 includes a rotating shaft 12 and an eccentric wheel 11, the eccentric wheel 11 includes a magnetic member 1123 and a permanent magnet 1121 sleeved on the rotating shaft 12, the permanent magnet 1121 includes two sub-magnets 11211 uniformly and symmetrically arranged on the outer periphery of the magnetic member 1123, a mass block 1122 is arranged in one of the mounting grooves formed by the two sub-permanent magnets 1121, and the other mounting groove forms a notch 113 of the eccentric wheel 11.
  • the two sub-magnets 11211 can be magnetized.
  • the magnetization direction of the two sub-magnets 11211 is consistent.
  • horizontal left magnetization is adopted.
  • the coil 21 is energized in the direction shown in Figure 18, where "*" indicates that the current direction is perpendicular to the paper surface and inward, and ".” indicates that the current direction is perpendicular to the paper surface and outward.
  • the eccentric mover 1 can generate a clockwise torque, that is, the eccentric mover 1 will rotate clockwise.
  • the vibration device 100 can rotate continuously around the axis; the device can be used to convert electrical energy into rotational mechanical energy.
  • the structure is simple. Since the eccentric mover 1 is an eccentric structure, it has a sense of vibration when rotating.
  • 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.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)

Abstract

本发明提供一种振动装置及电子设备，振动装置包括竖直方向层叠设置的两个振动电机，各振动电机包括定子、偏心动子和限位件，定子包括线圈组件，线圈组件形成有空腔；偏心动子包括转轴和套装于转轴的偏心轮，偏心轮包括磁性组件，偏心轮设置于空腔内且能够在空腔内转动；限位件用以限制偏心轮的转动角度。该振动装置通过设置两个水平方向的振动电机，振动电机包括偏心动子，偏心动子包括偏心轮，偏心轮包括磁性组件，两个偏心动子在旋转过程中及碰到限位件制动时产生的加速度成非对称分布，产生的效果就是振动装置工作时产生了非对称性振动。

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，本发明提供一种振动装置，包括沿竖直方向层叠设置的两个振动电机，各所述振动电机包括：
定子，所述定子包括线圈组件，所述线圈组件形成有空腔；
偏心动子，所述偏心动子包括转轴和套装于所述转轴的偏心轮，所述偏心轮包括磁性组件，所述偏心轮设置于所述空腔内且能够在所述空腔内转动；
限位件，所述限位件用以限制所述偏心轮的转动角度。
在一实施例中，所述偏心轮形成有缺口，所述限位件设置于所述缺口处。
在一实施例中，所述限位件为圆弧段，所述缺口为扇形缺口，所述限位件的圆心、所述扇形缺口的圆心、所述转轴的中心同心设置，所述扇形缺口对应的第一圆心角与所述限位件对应的第二圆心角的差值为90°。
在一实施例中，所述偏心轮旋转的角度范围为0°～90°；两个所述振动电机的旋转方向相反，且两个所述振动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，将两个限位件和所述转轴的中心点沿竖直方向投影到同 一投影面上；在投影面上，定义两个所述限位件连线的中点与中心点之间的连线为对称线，两个所述限位件相对于所述对称线成镜像设置。
在一实施例中，所述磁性组件包括导磁件、永磁铁和质量块，所述导磁件套装于所述转轴上，所述永磁铁和所述质量块设置于所述导磁件的外周。
在一实施例中，永磁铁包括两块子磁铁，两块所述子磁铁沿所述导磁件的外周间隔均匀分布，两块所述子磁铁形成有两个安装槽，所述质量块的数量为一块，所述质量块设置于其中一个所述安装槽中。
在一实施例中，所述限位件包括限位块和缓冲件，所述缓冲件设置于所述限位块用于与所述偏心轮抵接的抵接面上。
在一实施例中，所述定子还包括导磁环，所述线圈组件设置于所述导磁环内。
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，振动装置包括沿竖直方向层叠设置的两个振动电机，各振动电机包括线圈组件，线圈组件形成有空腔；偏心动子包括转轴和套装于转轴的偏心轮，偏心轮包括磁性组件，偏心轮设置于空腔内且能够在空腔内转动；限位件用以限制偏心轮的转动角度。该发明通过设置两个水平方向的振动电机，振动电机包括偏心动子，偏心动子包括偏心轮，偏心轮包括磁性组件，两个偏心动子在旋转过程中及碰到限位件制动时产生的加速度成非对称分布，产生的效果就是振动装置工作时产生了非对称性振动。
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为本发明实施例振动装置的结构示意图；
图2为本发明实施例振动装置的将两个竖直层叠设置的振动电机水平展示的结构示意图；
图3为本发明实施例振动电机的结构示意图；
图4为本发明实施例振动装置旋转的一示意图；
图5为图4状态下振动装置的受力示意图；
图6为本发明实施例振动装置制动的一示意图；
图7为图6状态下振动装置的受力示意图；
图8为本发明实施例振动装置反向旋转的一示意图；
图9为图8状态下振动装置的受力示意图；
图10为本发明实施例振动装置反向制动的一示意图；
图11为图10状态下振动装置的受力示意图；
图12为本发明实施例振动装置旋转时输入电压信号和加速度信号的波形图；
图13为本发明实施例振动电机的爆炸结构示意图；
图14为本发明实施例振动电机的定子和偏心动子的一结构示意图；
图15为本发明实施例振动电机的导磁环和偏心动子的结构示意图；
图16为本发明实施例振动电机的偏心动子的结构示意图；
图17为本发明实施例振动电机的定子和偏心动子的另一结构示意图；
图18为本发明实施例振动电机的剖面结构示意图。
标号说明：
100、振动装置；10、振动电机；1、偏心动子；11、偏心轮；112、磁性组件；1121、永磁铁；11211、子磁铁；1122、质量块；1123、导磁件；113、缺口；12、转轴；2、定子；21、线圈；22、导磁环；3、上壳；31、上通孔；4、下壳；41、下通孔；5、限位件。
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2以及图13～图15，需要说明的是，为方便说明振动电机10的旋转动作及进行力的说明，将竖直叠放的振动电机10表示展示成水平方向设置，图2中左侧表示叠放的两个振动电机10中上面的一个振动电机10，图2中右侧表示叠放的两个振动电机10中下面的一个振动电机10，根据本发明的一个方面，本发明提供一种振动装置100，包括沿竖直方向层叠设置的两个振动电机10，各振动电机10包括定子2、偏心动子1和限位件5，定子2包括线圈21组件，线圈21组件形成有空腔；偏心动子1包括转轴12和偏心轮11，偏心轮11形成有缺口113，偏心轮11包括转轴12套装于转轴12的偏心轮11，偏心轮11包括磁性组件112，偏心轮11设置于空腔内且能够在空腔内转动；限位件5用以限制偏心轮11的转动角度。
振动电机10是先给磁性组件112充磁，偏心轮包括磁性组件112，线圈21会给偏心轮11施加一个扭矩，驱动偏心轮11进而使得偏心动子1转动。偏心动子1包括转轴12和套装于转轴12的偏心轮11，偏心轮11包括磁性组件112，线圈21通电后偏心轮11会受到扭矩而转动。偏心动子1的形式可以有多种：如偏心轮11是质量均匀的圆盘，但转轴12的中心轴线与偏心轮11的中心偏离设置；或者偏心轮11的转动中心就是转轴12的轴线，但偏心轮11不是质量分布均匀的圆盘，如为椭圆形盘，总之偏心轮11的质心与转动中心并不在同一点上。该实施例通过设置沿竖直方向层叠设置的两个振动电机10，振动电机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，两个偏心动子1在旋转过程中及碰到限位件5停止时产生的加速度成非对称分布，产生的效果就是振动装置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。
参照图2和图3，在一实施例中，偏心轮11形成有缺口113，在缺口处设置有限位件5。具体地，缺口113可以是一个扇形缺口，通过在偏心轮11上设置一缺口113，获得非规则结构的偏心轮11，使得偏心轮11的质心与其旋转中心不重合，在转动时可以产生震感。并且还能够减少偏心轮11的质量，有利于进一步提高电机100的转速和减少能耗。同时，缺口113的两侧边碰到限位件5后就停止转动，以此限定偏心轮11的转动角度。
参照图2，在一实施例中，定子2包括导磁环22，线圈组件设置于导磁环22内。导磁环22又称为磁轭，是由硅钢片垒叠制成的轭铁，它均匀对称地分面在线圈组件的四周，用于约束漏磁向外扩散。
在一实施例中，偏心轮11旋转的角度范围为0°～90°；两个振动电机10的旋转方向相反，且两个振动电机10与分别对应的两个限位件5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5碰撞，并随后反方向转动。两个振动电机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，两个振动电机10的旋转方向相反指的是：一个振动电机10为顺时针转动而另一个振动电机10为逆时针转动，不会出现两个振动电机10同时为顺时针转动或同时为逆时针转动，并且两个振动电机10与对应的限位件5碰撞发生在同一时间。参照图6和图7，两振动电机10动子的制动力相互抵消，离心力消失。
参照图1和图2，在一实施例中，将两个限位件5和所述转轴12的中心点沿竖直方向投影到同一投影面上；在投影面上，定义两个所述限位件5连线的中点与中心点之间的连线为对称线，两个所述限位件5相对于所述对称线成镜像设置。因为两个振动电机10沿竖直方向叠设，因此两个的中心点是重合的，也就是偏心轮11的旋转中心，在投影面上，两个中心点重合有一个中心投影，两个限位件5有两个投影，可以选取两个投影的中心点，将中心点与中心投影连接形成一个对称线，两个限位件5的投影相对对称线呈镜像 设置。参照图4和图5，通过这样限定两个限位件5的相对位置，是为了使得两个偏心动子1能够同时与各自对应的限位件5碰撞。
参照图3，在一实施例中，限位件5为圆弧段，缺口113为扇形缺口113，限位件5的圆心、扇形缺口113的圆心、转轴12的中心同心设置，扇形缺口113对应的第一圆心角与限位件5对应的第二圆心角的差值为90°。限位件5是一段圆弧段，圆弧对应的圆的圆心，扇形缺口113对应的圆的圆心和转轴12的中心重合，扇形缺口113对应的第一圆心角为图3中a所示，限位件5对应的第二圆心角如图3中b所示，a-b差值为90°，使得偏心轮11只能在0°～90°的范围内转动。
为清楚地描述本发明的实现方式，先结合附图对本发明的技术方案和有益效果说明如下:
振动装置100包括竖直方向层叠设置的两个振动电机10，各振动电机10包括定子2、偏心动子1和限位件5，定子2包括导磁环22和安装于导磁环22内的线圈21组件，线圈21组件形成有空腔；偏心动子1包括转轴12和偏心轮11，偏心轮11形成有缺口113，偏心轮11包括套装于转轴12的导磁件1123和与导磁件1123连接的磁性组件112，偏心轮11设置于空腔内且能够在空腔内转动，偏心轮11旋转的角度范围为0°～90°，两个振动电机10的旋转方向相反，偏心轮11包括永磁铁1121和质量块1122；限位件5设置于缺口113处以限制偏心轮11的转动角度，将两个限位件5和所述转轴12的中心点沿竖直方向投影到同一投影面上；在投影面上，定义两个所述限位件5的中点与中心点之间的连线为对称线，两个所述限位件5相对于所述对称线成镜像设置，且两个振动电机10与分别对应的两个限位件5同时碰撞。
参照图4～图11，需要说明的是，为方便说明振动电机10的旋转动作及进行受力的说明，将竖直叠放的两个振动电机10表示展示成水平方向设置，图4、图6、图8、图10中左侧表示叠放的两个振动电机10中上面的一个振动电机10，图4、图6、图8、图10中右侧表示叠放的两个振动电机10中下面的一个振动电机10。其中，F1表示离心力，F2表示制动力，F合表示振动装置100所受的合力，旋转箭头方向表示振动电机10的旋转方向。需要说明的是，图示中导磁件1123和磁性组件112均相对转轴12中心成对称分布，且质量块1122一般质量较大，故认为质心在质量块1122上，分析受力时受 力点选取的质量块1122上的点。具体地：
参照图4和图5，图4中左边振动电机10表示的是层叠设置的上面的一个振动电机10逆时针转动，右边振动电机10表示的是层叠设置的下面的一个的振动电机10顺时针转动，图5表示转动过程中振动装置100所受的合力示意图；开始旋转后，两个定子2所受扭矩及离心力的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。需要说明的是，图5中粗弯箭头所示为定子2所受扭矩的方向，根据作用力与反作用力定律。定子2所受扭矩方向与动子1的方向相反。由于定子2是固定在壳体上，也可以是壳体所受的扭矩。
参照图6和图7，图6表示偏心轮11转动90°后发生制动与限位件5碰撞，图7表示碰撞发生时振动装置100所受的合力示意图，此时两振动电机10动子的离心力消失，两振动电机10动子的制动力F2方向相同，合力F合为-y方向。
参照图8和图9，图8表示偏心轮11制动后反向旋转的示意图，其中，左边的振动电机10顺时针转动，右边的振动电机10逆时针转动，图9表示反向旋转振动装置100所受的合力示意图，此时两个定子2所受扭矩及及离心力的x分量大小相等方向相反相互抵消，留下y分量；需要说明的是，图9中粗弯箭头所示为定子2所受扭矩的方向，根据作用力与反作用力定律。定子2所受扭矩方向与动子1的方向相反。由于定子2是固定在壳体上，也可以是壳体所受的扭矩。
参照图10和图11，图10表示偏心轮11制动后反向旋转90°后回到初始位置，发生制动与限位件5碰撞，图11表示反向旋转发生制动时振动装置100所受的合力示意图，此时两振动电机10动子的制动力相互抵消，离心力消失。
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12，图12中A曲线表示的是电机输入的电信号，图12中B曲线表示的是通过加速度传感器对振动装置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，但是振动装置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，振动装置100产生了非对称性振动。
在一实施例中，磁性组件112可以仅包括导磁件1123和永磁铁1121，导磁件1123套装于转轴12上，永磁铁1121沿导磁件1123的外周非均匀分布。导磁件1123的外周指的是围绕导磁件1123的一整个圆周，永磁铁1121在导磁件1123的外周非均匀分布包括两个含义：第一，永磁铁1121的数量为一块，一块永磁铁1121并不是一个完成的圆，因此使得偏心轮11的质量分布不均匀，偏心轮11的转动中心与偏心轮11的质心不重合。第二，永磁铁1121包括多块子磁铁11211，多块子磁铁11211间隔设置于导磁件1123外周，多块子磁铁11211沿导磁件1123的外周非均匀分布。当子磁铁11211大小质量相同时，如果子磁铁11211沿导磁件1123的外周间隔均匀分布，那么偏心轮11的转动中心会与偏心轮11的质心重合，无法产生效果较好的震感。因此，要将多块子磁铁11211沿导磁件1123的外周非均匀分布。
当然，在另一实施例中，各块子磁铁11211铁的质量和大小也可以不相同。此时，即使各块子磁铁11211间隔均匀分布，也会造成偏心轮11的转动中心与偏心轮11的质心不重合，偏心动子1转动时同样会产生震感。
需要说明的是，导磁件1123可以由铁片或硅钢片叠设形成，可以起到连接和导磁作用。线圈21组件可以包括圈架和饶设在圈架上的线圈21，圈架安装于导磁环22上为线圈21绕设提供支撑，圈架形成有供偏心轮11转动的空腔。当然，也可以仅不设置圈架，采用漆包线在模具上绕成线圈21，再用高温胶进行定型形成线圈21，线圈21内形成有供偏心轮11转动的空腔。线圈21组件的数量可以为两个，两个线圈21组件间隔设置，转轴12穿过两个线圈21之间的间隙并可以自由转动。
参照图16，在一实施例中，磁性组件112可以包括导磁件1123、永磁铁1121和质量块1122，导磁件1123套装于转轴12上，永磁铁1121和质量块1122设置于导磁件1123外周的。质量块1122一般采用密度较大的材料制成，如铅或者钨合金。质量块1122的密度比永磁铁1121的密度大的多，设置大小时也会将质量块1122的质量设置的比永磁铁1121大一些，通过设置质量块1122可以增加震感。
在一实施例中，永磁铁1121包括多块子磁铁11211，多块子磁铁11211沿导磁件1123的外周间隔均匀分布，相邻两块子磁铁11211之间形成有能够容纳质量块1122的安装槽，安装槽的数量为多个，质量块1122在多个安装 槽内非均匀分布。这里将多块子磁铁11211间隔均匀分布是为了使得偏心轮11各个方向受到扭矩均匀，在相邻的子磁铁11211之间形成安装槽，安装槽的数量与子磁铁11211的数量相同，质量块1122的数量可能是一块，也可能是多块，每一安装槽中最多设置一块质量块1122，质量块1122在多个安装槽中非均匀分布，因为如果均匀分布会导致偏心轮11质心在自身转动中心上，无法产生效果较好的震感。
参照图14-图16，在一实施例中，子磁铁11211的数量为两块，质量块1122的数量为一块，质量块1122设置于两块子磁铁11211形成有两个安装槽，质量块1122设置于两块子磁铁11211形成的其中一个安装槽中。两块子磁铁11211间隔分布形成有两个安装槽，质量块1122的数量为一块，质量块1122仅安装在其中一个安装槽中，由此使得偏心轮11的质量分布不均匀，偏心轮11的质心与偏心轮11的转动中心不重合，构成偏心结构，能够产生震感。该实施例以最小数量的子磁铁11211和质量块1122数量达到理想的震感效果，制作简单，安装方便。这里需要说明的是，两个安装槽中未设置质量块1122的一个安装槽也就是上述的偏心轮11的缺口113。在一具体地实施例中，质量块1122的两侧分别与两块子磁铁11211抵接，将质量块1122与两块子磁铁11211抵接连接强度更高。
参照图17，在一实施例中，振动装置100还包括限位件5，限位件5设置于缺口113处以限制偏心轮11的转动角度。限位件5使得振动装置100只能在限定的角度内摆动，成为摆动电机。限位件5的数量可以为一个，也可以为两个，两个限位件5时可以间隔设置，以分别从缺口113的两侧边对偏心轮11进行限位。
在一实施例中，限位件5包括限位块和缓冲件，缓冲件设置于限位块用于与偏心轮11抵接的抵接面上。限位块可以由金属材料制成，起到提高强度和支撑作用，缓冲件用于减小噪音和起到缓冲撞击力的作用。具体地，缓冲件为橡胶层或泡棉层。缓冲件可以由泡棉或者橡胶材料制成。
参照图13，图13表示的是每一振动电机10均包括上壳3和下壳4的示意图。在一实施例中，振动电机10还包括上壳3和下壳4，上壳3盖合于导磁环22的顶面，下壳4盖合于导磁环22的底面，上壳3形成有安装限位件5的上通孔31，下壳4形成有安装限位件5的下通孔41。上通孔31和下通孔 41正对设置，可以通过卡接的方式将限位件5安装在上通孔31和下通孔41上。当然，在其它实施例中，还可以将限位件5安装在导磁环22上。当然，还可以通过一个上壳3体和一个下壳4体将四个振动电机10一同设置于上壳3体和下壳4体形成的容纳腔内。
需要说明的是，振动电机10的转动原理属现有技术，但为清楚的说明本申请的实现方式，现采用一具体实施例将振动装置100的原理说明如下。如图18所示，振动装置100包括定子2和偏心动子1，定子2包括导磁环22和设置于导磁环22内的两个线圈21，偏心动子1包括转轴12和偏心轮11，偏心轮11包括套装于转轴12的导磁件1123和永磁铁1121，永磁铁1121包括均匀对称设置于导磁件1123外周的两块子磁铁11211，一块质量块1122设置于两个子永磁铁1121形成的其中一个安装槽中，另一个安装槽形成偏心轮11的缺口113。首先，可以给两块子磁铁11211充磁，两块子磁铁11211的充磁方向一致，如图18中箭头所示采用水平向左充磁，给线圈21的通电如图18中方向所示，其中“*”表示电流方向垂直纸面向内，“.”表示电流方向垂直纸面向外，根据安培定律，偏心动子1可产生顺时针方向的扭矩，即动偏心动子1会顺时针方向旋转，通过控制线圈21中电流的方向可使振动装置100绕轴持续旋转；利用该装置可将电能转换为旋转的机械能，结构简单，由于偏心动子1为偏心结构，旋转时自带震感。
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，包括沿竖直方向层叠设置的两个振动电机，各所述振动电机包括：
    定子，所述定子包括线圈组件，所述线圈组件形成有空腔；
    偏心动子，所述偏心动子包括转轴和套装于所述转轴的偏心轮，所述偏心轮包括磁性组件，所述偏心轮设置于所述空腔内且能够在所述空腔内转动；
    限位件，所述限位件用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，所述偏心轮形成有缺口，所述限位件设置于所述缺口处。
  3. 根据权利要求2所述的振动装置，其特征在于，所述限位件为圆弧段，所述缺口为扇形缺口，所述限位件的圆心、所述扇形缺口的圆心、所述转轴的中心同心设置，所述扇形缺口对应的第一圆心角与所述限位件对应的第二圆心角的差值为90°。
  4. 根据权利要求1所述的振动装置，其特征在于，所述偏心轮旋转的角度范围为0°～90°；两个所述振动电机的旋转方向相反，且两个所述振动电机与分别对应的两个所述限位件同时碰撞。
  5. 根据权利要求4所述的振动装置，其特征在于，将两个限位件和所述转轴的中心点沿竖直方向投影到同一投影面上；在投影面上，定义两个所述限位件连线的中点与中心点之间的连线为对称线，两个所述限位件相对于所述对称线成镜像设置。
  6. 根据权利要求1～5中任一项所述的振动装置，其特征在于，所述磁性组件包括导磁件、永磁铁和质量块，所述导磁件套装于所述转轴上，所述永 磁铁和所述质量块设置于所述导磁件的外周。
  7. 根据权利要求6所述的振动装置，其特征在于，所述永磁铁包括两块子磁铁，两块所述子磁铁沿所述导磁件的外周间隔均匀分布，两块所述子磁铁形成有两个安装槽，所述质量块的数量为一块，所述质量块设置于其中一个所述安装槽中。
  8. 根据权利要求1～5中任一项所述的振动装置，其特征在于，所述限位件包括限位块和缓冲件，所述缓冲件设置于所述限位块用于与所述偏心轮抵接的抵接面上。
  9. 根据权利要求1～5中任一项所述的振动装置，其特征在于，所述定子还包括导磁环，所述线圈组件设置于所述导磁环内。
  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/CN2024/101924 2023-06-30 2024-06-27 振动装置及电子设备 Ceased WO2025002234A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202310800795.3 2023-06-30
CN202310800795.3A CN116865519A (zh) 2023-06-30 2023-06-30 振动装置及电子设备

Publications (1)

Publication Number Publication Date
WO2025002234A1 true WO2025002234A1 (zh) 2025-01-02

Family

ID=88218364

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2024/101924 Ceased WO2025002234A1 (zh) 2023-06-30 2024-06-27 振动装置及电子设备

Country Status (2)

Country Link
CN (1) CN116865519A (zh)
WO (1) WO2025002234A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116865519A (zh) * 2023-06-30 2023-10-10 歌尔股份有限公司 振动装置及电子设备

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002254029A (ja) * 2001-01-31 2002-09-10 Sunonwealth Electric Machine Industry Co Ltd Ｄｃブラシレス振動モータ
JP2003236468A (ja) * 2002-02-15 2003-08-26 Fujikura Ltd 振動発生方法及びその装置
JP2003245607A (ja) * 2002-02-22 2003-09-02 Minebea Co Ltd 振動発生器
US20060281550A1 (en) * 2000-09-28 2006-12-14 Immersion Corporation Directional inertial tactile feedback using rotating masses
CN116827072A (zh) * 2023-06-30 2023-09-29 歌尔股份有限公司 振动装置及电子设备
CN116865519A (zh) * 2023-06-30 2023-10-10 歌尔股份有限公司 振动装置及电子设备

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060281550A1 (en) * 2000-09-28 2006-12-14 Immersion Corporation Directional inertial tactile feedback using rotating masses
JP2002254029A (ja) * 2001-01-31 2002-09-10 Sunonwealth Electric Machine Industry Co Ltd Ｄｃブラシレス振動モータ
JP2003236468A (ja) * 2002-02-15 2003-08-26 Fujikura Ltd 振動発生方法及びその装置
JP2003245607A (ja) * 2002-02-22 2003-09-02 Minebea Co Ltd 振動発生器
CN116827072A (zh) * 2023-06-30 2023-09-29 歌尔股份有限公司 振动装置及电子设备
CN116865519A (zh) * 2023-06-30 2023-10-10 歌尔股份有限公司 振动装置及电子设备

Also Published As

Publication number Publication date
CN116865519A (zh) 2023-10-10

Similar Documents

Publication Publication Date Title
WO2025002217A1 (zh) 振动装置及电子设备
WO2025002227A1 (zh) 振动电机组件及电子设备
WO2025002210A1 (zh) 振动电机组件及电子设备
CN100553073C (zh) 旋转电机
JP3722822B1 (ja) 永久磁石回転モータ
JP2008211934A (ja) 回転電機の回転子及び回転電機
WO2025002234A1 (zh) 振动装置及电子设备
JP2014093858A (ja) 回転電機のロータ
JP2002354766A (ja) 永久磁石電動機
JPH11252840A (ja) 回転電機の回転子
WO2025002245A1 (zh) 电机及电子设备
CN112436616B (zh) 一种轴向磁通五自由度磁悬浮电机
WO2025002243A1 (zh) 振动装置及电子设备
JPS61185062A (ja) うず電流遅延装置の改良
WO2025002239A1 (zh) 转盘电机组件及电子设备
JP2008301666A (ja) アキシャルモータ
WO2025066673A1 (zh) 电机组件及电子设备
JPH1127917A (ja) モータ構造
JP2005130692A (ja) アキシャル型永久磁石モータ
JP2012120358A (ja) コアレス電気機械装置
JPWO2017006522A1 (ja) 発電機
TWI674733B (zh) 軸向間隙型旋轉電機
JP3749340B2 (ja) Ｐｍ型ステッピングモータ
JP4345528B2 (ja) 電動機の回転子およびこれに用いられるエンドプレート
JPH07194080A (ja) モータ

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 24830867

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE