Vibration device and electronic apparatus

Abstract

Provided in the present invention are a vibration device and an electronic apparatus. The vibration device comprises a first electric motor group and a second electric motor group, wherein each of the first electric motor group and the second electric motor group comprises two turntable electric motors; the four turntable electric motors are arranged in the horizontal direction, and each turntable electric motor comprises a stator, an eccentric rotor and a limiting member; each stator comprises a coil assembly; each eccentric rotor comprises a rotating shaft and an eccentric wheel; each coil assembly is arranged at the top and / or the bottom of the corresponding eccentric wheel; each eccentric wheel comprises a magnetic assembly, which is rotationally mounted on the corresponding rotating shaft; and each limiting member is used for limiting a rotation angle of the corresponding eccentric wheel. In the vibration device, the four turntable electric motors are arranged in the horizontal direction, and are divided into two groups, each group comprises two turntable electric motors, and the first electric motor group and the second electric motor group are separately controlled, so that asymmetric rotation, also known as anisotropic rotation, can be generated.

Description

Vibration devices and electronic equipment Technical Field

[0001] The present invention relates to the technical field of vibration devices, and in particular to a vibration device and electronic equipment. Background Art

[0002] Vibration motors are widely used in various industries. They are devices that convert electrical energy into mechanical energy. Most existing vibration motors are linear motor rotors. The rotation generated when they reciprocate near the equilibrium position is symmetrical rotation, and they cannot produce asymmetric rotation (anisotropic rotation).

[0003] In view of this, it is necessary to provide a new vibration device and electronic device to solve or at least alleviate the above technical defects. In view of this, it is necessary to provide a new vibration device and electronic device to solve or at least alleviate the above technical defects.

[0004] Summary of the Invention

[0005] The main purpose of the present invention is to provide a vibration device and an electronic device, aiming to solve the technical problem that motors in the prior art cannot provide anisotropic rotation.

[0006] To achieve the above object, according to one aspect of the present invention, a vibration device is provided, comprising a first motor group and a second motor group, wherein the first motor group and the second motor group each comprise two turntable motors, the four turntable motors being arranged in a horizontal direction, and each of the turntable motors comprising:

[0007] a stator, the stator comprising a coil assembly;

[0008] An eccentric mover, the eccentric mover comprising a rotating shaft and an eccentric wheel, the coil assembly being arranged on the top and / or bottom of the eccentric wheel; the eccentric wheel comprising a magnetic assembly rotatably mounted on the rotating shaft;

[0009] A limiting member is used to abut against the eccentric wheel to limit the rotation angle of the eccentric wheel.

[0010] In one embodiment, the eccentric wheel is a semicircular wheel.

[0011] In one embodiment, 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.

[0012] In one embodiment, 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.

[0013] In one embodiment, 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 central angle of the eccentric wheel and the central angle of the limiting member is 90°.

[0014] In one embodiment, in the first motor group, the two limiting members are centrally symmetrical about the midpoint of the line connecting the centers of the two rotating shafts; in the second motor group, the two limiting members are centrally symmetrical about the midpoint of the line connecting the centers of the two rotating shafts.

[0015] In one embodiment, the angular range of rotation and reverse rotation of the eccentric wheel is 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.

[0016] In one embodiment, 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, and the second motor and the fourth motor are adjacently arranged; with 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 parts of the first motor group and the limiting parts of the second motor group are symmetrically arranged.

[0017] In one embodiment, a buffer member is provided on the surface of the limiting member.

[0018] According to another aspect of the present invention, the present invention further provides an electronic device, comprising a housing and the vibration device as described above disposed in the housing.

[0019] In the above scheme, the vibration device includes a first motor group and a second motor group, the first motor group and the second motor group each include 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 mounted on the top and / or bottom of the eccentric wheel. The eccentric wheel's magnetic assembly is first magnetized, specifically in a direction perpendicular to the paper. Then, the coil assembly is energized. According to Ampere's law, the coils on the coil assembly are subjected to torque. Since the coils are stationary, they simultaneously exert a reaction force on the magnetic assembly, driving the eccentric wheel to rotate. The center of rotation of the eccentric wheel is the axis of the rotating shaft. However, the mass distribution of the eccentric wheel is uneven, so the center of mass of the eccentric wheel and its center of rotation are not aligned, producing a vibration during rotation. This invention employs four horizontal turntable motors, divided into two groups, each containing two turntable motors. Because the turntable motors include eccentric rotors, which include eccentric wheels, the center of mass of the eccentric rotors is not aligned with the center of the rotating shaft. Separately controlling the first and second motor groups produces asymmetric rotation, also known as anisotropic rotation. Furthermore, because the eccentric rotors are eccentric, they produce a vibration during rotation. Compared with the prior art which requires an additional eccentric block to be added to the rotating shaft, this invention can generate a vibration sensation by improving the eccentric wheel structure, which is beneficial to increasing the motor speed and reducing energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0021] FIG1 is a schematic structural diagram of a vibration device according to an embodiment of the present invention;

[0022] FIG2 is a schematic structural diagram of a turntable motor according to an embodiment of the present invention;

[0023] FIG3 is a schematic structural diagram of the initial state of the vibration device according to an embodiment of the present invention (the coil assembly is hidden);

[0024] FIG4 is a schematic diagram of a first motor group of a vibration device according to an embodiment of the present invention rotating to a stop;

[0025] FIG5 is a schematic diagram of the resultant force acting on the vibration device in the state of FIG4 ;

[0026] FIG6 is a schematic diagram of a first motor unit of a vibration device according to an embodiment of the present invention rotating in the reverse direction until braking;

[0027] FIG7 is a schematic diagram of the resultant force acting on the vibration device in the state of FIG6;

[0028] FIG8 is a schematic diagram of a second motor group of a vibration device according to an embodiment of the present invention rotating to a stop;

[0029] FIG9 is a schematic diagram of the resultant force acting on the vibration device in the state of FIG8 ;

[0030] 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;

[0031] FIG11 is a schematic diagram of the resultant force acting on the vibration device in the state of FIG10 ;

[0032] FIG12 is a schematic structural diagram of a position-limiting member according to an embodiment of the present invention.

[0033] Description of labels:

[0034] 100. 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 assembly; 1111. Magnetic member; 1112. Mass block; 12. Rotating shaft; 2. Stator; 21. Coil; 3. Housing; 4. Limiting member; 41. First limiting surface; 42. Second limiting surface; 43. Arc segment.

[0035] The realization of the objectives, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0037] It should be noted that all directional indications (such as up, down, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0038] In addition, the terms "first," "second," and so on, used in this disclosure are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include at least one of these features.

[0039] Moreover, the technical solutions between the various embodiments of the present invention may be combined with each other, but this must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0040] 1 to 3 , according to one aspect of the present invention, a vibration device 100 is provided, 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 , the four turntable motors 10 being arranged in a horizontal direction, and each turntable motor 10 comprising a stator 2, an eccentric mover 1 and a limiter 4 : the stator 2 comprises a coil assembly; the eccentric mover 1 comprises 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 comprises a magnetic assembly 111 rotatably mounted on the rotating shaft 12 ; the limiter 4 is used to abut against the eccentric wheel 11 to limit the rotation angle of the eccentric wheel 11 .

[0041] 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 bottom of the eccentric wheel 11. First, the magnetic assembly 111 of the eccentric wheel 11 is magnetized. Specifically, the magnetization direction can be perpendicular to the paper surface. 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 the magnetic assembly 111 a reaction 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, which can produce a vibration when rotating. This embodiment sets four horizontal turntable motors 10. 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 on 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. In addition, 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.

[0042] In addition, it should be noted that the turntable motor 10 used in the present application is not provided with an iron core in its structure compared to other motors, so there is no cogging torque. Specifically, the cogging torque will cause the motor to generate vibration and noise. If the cogging torque is too large, the motor may also stop at a position where the cogging torque is too large and stop rotating. The presence 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. In a variable speed drive, when 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 presence 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.

[0043] Referring to FIG2 , in one embodiment, the eccentric wheel 11 is a semicircular wheel. The shape of the eccentric wheel 11 can be varied, such as a semicircular wheel or a U-shaped wheel, and those skilled in the art can configure it according to actual needs. Those skilled in the art will understand that when the maximum rotation angle of the eccentric wheel 11 is required to be 90°, it is necessary to specifically configure it according to the shape of the stopper 4.

[0044] Referring to Figure 2, in one embodiment, the magnetic assembly 111 includes a magnetic part 1111 and a mass part 1112 connected to the magnetic part 1111, and the mass part 1112 is rotatably connected to the rotating shaft 12. The magnetic part 1111 is subjected to the Ampere force, generating a torque to rotate the eccentric wheel 11. The magnetic part 1111 can be a permanent magnet, and the mass part 1112 is generally made of a material with a higher density, such as lead or tungsten alloy. The density of the mass part 1112 is much greater than that of the permanent magnet. When setting the size, the mass of the mass part 1112 will also be set to be larger than that of the permanent magnet. By setting the mass part 1112, the sense of vibration can be increased. Here, the connection method between the magnetic part 1111 and the mass part 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, it will be sufficient. For example, the mass member 1112 can be embedded in the magnetic member 1111, or the mass member 1112 and the magnetic member 1111 can be alternately arranged around the outer circumference of the rotating shaft 12, or the mass member 1112 can be arranged on the outer circumference of the magnetic member 1111. There can also be multiple mass members 1112, and the multiple mass members 1112 can be distributed at intervals. This embodiment can enhance the vibration of the turntable motor 10 by providing the mass member 1112.

[0045] Referring to Figure 2, in one embodiment, 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. Designing the mass member 1112 to be annularly disposed around the periphery of the magnetic member 1111 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. Specifically, the magnetic member 1111 can be semicircular, and the mass ring is a semicircular ring disposed around the periphery of the magnetic member 1111.

[0046] In one embodiment, the magnetic assembly 111 includes a magnetic member 1111, which is rotatably connected to the rotating shaft 12. Of course, the mass member 1112 can be omitted, and the magnetic member 1111 can be directly rotatably mounted on the rotating shaft 12. The magnetic member 1111 is subjected to the Ampere force, generating a torque that causes the eccentric wheel 11 to rotate. In this case, the center of mass of the magnetic member 1111 does not coincide with the center of the rotating shaft 12, which can still produce an eccentric effect. In this case, the magnetic member 1111 can be semicircular.

[0047] In one embodiment, the angular range of rotation and reverse rotation of the eccentric 11 is 0° to 90°; the limiting member 4 is a circular arc segment 43, and the center of the limiting member 4, the center of the eccentric 11, and the center of the rotating shaft 12 are concentrically arranged. The difference between the central angle of the eccentric 11 and the central angle of the limiting member 4 is 90°. The design difference is 90°, that is, the central angle of the eccentric 11 minus the central angle of the limiting member 4 = 90°. The maximum rotation angle of the eccentric 11 limited by the limiting member 4 is 90°. Specifically, the limiting member 4 can actually be a quarter circular arc segment 43, corresponding to a central angle of 90°, and the eccentric 11 can be a semicircular wheel, corresponding to a central angle of 180°. Because the limiting member 4 and the eccentric 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 11 to 0° to 90°.

[0048] 12 , in one embodiment, the limiting member 4 includes a first limiting surface 41 and a second limiting surface 42, and the eccentric wheel 11 includes a first abutting surface and a second abutting surface. The first limiting surface 41 is used to abut against the first abutting surface, and the second limiting surface 42 is used to abut against the second abutting surface. The first limiting surface 41 and the second limiting surface 42 are arranged perpendicularly. There are four eccentric wheels 11 and four limiting members 4. Each limiting member 4 is provided for each eccentric wheel 11, and each limiting member 4 is used to limit the rotation angle of the corresponding eccentric wheel 11. Each limiting member 4 includes a first limiting surface 41, a second limiting surface 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.

[0049] In one embodiment, the centers of the four rotating shafts 12 are located at the four vertices of a square. The four turntable motors 10 are located at the four vertices of the square, forming a 2x2 array of turntable motors 10. This symmetrical design effectively offsets unwanted force components generated by the turntable motors 10 of the first motor group 110 and the second motor group 120 during rotation.

[0050] In one embodiment, the eccentric wheel 11 rotates and counter-rotates within an angle range of 0° to 90°. In the first motor assembly 110, the two turntable motors 10 rotate in the same direction and collide with the two corresponding stoppers 4 simultaneously. In the second motor assembly 120, the two turntable motors 10 rotate in the same direction and collide with the two corresponding stoppers 4 simultaneously. The eccentric wheel 11 rotates within an angle range of 0° to 90°, and the eccentric wheel 11 collides with the stopper 4 every 90° of rotation and then rotates in the opposite direction. In a specific embodiment, in the first motor assembly 110, the two stoppers 4 are symmetrical about the midpoint of the line connecting the centers of the two rotating shafts 12. In the second motor assembly 120, the two stoppers 4 are symmetrical about the midpoint of the line connecting the centers of the two rotating shafts 12 of the two turntable motors 10 of the second motor assembly 120. The same rotation direction means that the two turntable motors 10 rotate simultaneously clockwise or counterclockwise. 3 to 11 , by driving different motor groups to perform motion in different rotational directions, where F1 represents the braking force generated by the first motor 101 , F2 represents the braking force generated by the second motor 102 , F3 represents the braking force generated by the third motor 103 , and F4 represents the braking force generated by the fourth motor 104 , the vibration device 100 has at least four motion states:

[0051] State 1, counterclockwise rotation, is 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 considered 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. The first motor group 110 and the second motor group 120 can be controlled separately. Assuming the position shown in FIG. 3 is the initial position, the two turntable motors 10 of the first motor group 110 are controlled to rotate counterclockwise simultaneously. Referring to FIG. 5 , during the rotation, the y-direction force components generated by the turntable motors 10 cancel each other out, leaving only the x-direction force, producing a counterclockwise rotation sensation, until the position shown in FIG. 4 is reached. When the turntable motor 10 collides with the stopper 4, the centrifugal force disappears, leaving only the braking forces F1 and F2, producing a counterclockwise rotation sensation.

[0052] State two, a state with no sense of rotation, in which the first motor group 110 moves from the state described in FIG4 to the state shown in FIG6 . When the two turntable motors 10 of the first motor group 110 hit the limiter 4, the two turntable motors 10 of the first motor group 110 are driven to rotate in the opposite direction, that is, clockwise. At this time, referring to FIG7 , during the rotation process, the x-direction force components generated by the two turntable motors 10 cancel each other out, and the y-direction force components also cancel each other out, without the feeling of rotation or translation, until it moves to the position shown in FIG6 ; when the turntable motor 10 collides with the limiter 4, the centrifugal force disappears, and the braking forces F1 and F2 are equal in magnitude and opposite in direction, cancel each other out, and there is no feeling of rotation or translation.

[0053] State three, clockwise rotation state, the process of the second motor group 120 moving from the state shown in Figure 6 to the state shown in Figure 8, the second motor group 120 moving from the state shown in Figure 6 to the state shown in Figure 8, the two motors on the left of Figure 6 are the first motor group 110, and the two motors on the right are the second motor group 120, the first motor group 110 and the second motor group 120 can be controlled separately. Assuming that the position of the second motor group 120 on the right in Figure 6 is the initial position, the two turntable motors 10 of the second motor group 120 are controlled to rotate clockwise simultaneously. Referring to Figure 9, during the rotation process, the y-direction force components generated by the two turntable motors 10 during rotation cancel each other out, leaving only the x-direction component, producing a clockwise rotation feeling until it moves to the position shown in Figure 8; when the turntable motor 10 collides with the limit member 4, the centrifugal force disappears, leaving only the braking forces F3 and F4, producing a clockwise rotation feeling.

[0054] State four, the state with no sense of rotation, the process of the first motor group 110 moving from the state described in Figure 8 to the state shown in Figure 10, when the two turntable motors 10 of the second motor group 120 hit the limiter 4, the two turntable motors 10 of the second motor group 120 are driven to rotate in the opposite direction, that is, counterclockwise, referring to Figure 11, at this time, the x-direction force components generated during the rotation of the two turntable motors 10 cancel each other, and the y-direction force components also cancel each other, and there is no sense of rotation or translation; when the turntable motor 10 collides with the limiter 4, the centrifugal force disappears, and the braking forces F3 and F4 are equal in magnitude and opposite in direction, cancel each other out, and there is no sense of rotation or translation.

[0055] In summary, if only the two turntable motors 10 of the left first motor group 110 are driven counterclockwise, a counterclockwise rotation sensation is produced. However, if the two turntable motors 10 of the left first motor group 110 are driven in the reverse direction, no rotation or translational motion is felt. If only the two turntable motors 10 of the right second motor group 120 are driven clockwise, a clockwise rotation sensation is produced. However, if the two turntable motors 10 of the right second motor group 120 are driven in the reverse direction, no rotation or translational motion is felt. Because the turntable motor 10 includes an eccentric mover 1, which includes an eccentric wheel 11, and 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 can be controlled separately to produce asymmetric rotation, i.e., anisotropic rotation.

[0056] Referring to FIG1 , in one embodiment, the two turntable motors 10 of the first motor group 110 are respectively a first motor 101 and a second motor 102, and the two turntable motors 10 of the second motor group 120 are respectively a third motor 103 and a fourth motor 104. The first motor 101 and the third motor 103 are arranged adjacent to each other, and the second motor 102 and the fourth motor 104 are arranged adjacent to each other. The stopper 4 of the first motor group 110 and the stopper 4 of the second motor group 120 are symmetrically arranged with 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 as the line of symmetry, and the perpendicular midline of the line connecting the center of the rotating shaft of the first motor 101 and the center of the rotating shaft of the third motor 103 as the line of symmetry. With this design, it is also possible to control the simultaneous reverse driving of the first motor 101 and the third motor 103, or the simultaneous reverse driving of the second motor 102 and the fourth motor 104, to generate asymmetric vibration.

[0057] In one embodiment, a buffer is provided on the surface of the stopper 4. The buffer is a rubber or foam layer. The buffer is provided on the contact surface of the stopper 4 with the eccentric wheel 11. The stopper 4 can be made of a metal material to increase strength and provide support. The buffer is used to reduce noise and cushion impact forces to prevent damage. Specifically, the buffer can be made of foam or rubber.

[0058] In one embodiment, 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 each other, and the limit member 4 can be mounted 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 wound on the coil frame, and the coil frame is mounted on the housing 3 to provide support for the winding of the coil 21.

[0059] According to another aspect of the present invention, an electronic device is provided, comprising a housing and a vibration device 100 as described above, disposed within the housing. Because the electronic device incorporates all technical solutions of all embodiments of the vibration device 100 described above, it possesses all the beneficial effects of all of the aforementioned technical solutions, which are not detailed here. The electronic device may be a mobile phone, a game controller, or the like.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and do not limit the patent scope of the present invention. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that under the technical concept of the present invention, the technical solutions described in the aforementioned embodiments can still be modified, or some or all of the technical features therein can be replaced by equivalents; or directly / indirectly applied to other related technical fields, and these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and description of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in each embodiment can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A vibration device, characterized in that: The invention comprises a first motor group and a second motor group, wherein the first motor group and the second motor group each comprise two turntable motors, and the four turntable motors are arranged in a horizontal direction, and each of the turntable motors comprises: a stator, the stator comprising a coil assembly; An eccentric mover, the eccentric mover comprising a rotating shaft and an eccentric wheel, the coil assembly being arranged at the top and / or bottom of the eccentric wheel; the eccentric wheel comprising a magnetic assembly rotatably mounted on the rotating shaft; A limiting member, wherein the limiting member is used to abut against the eccentric wheel to limit the rotation angle of the eccentric wheel.

2. The vibration device according to claim 1, characterized in that The eccentric wheel is a semicircular wheel.

3. The vibration device according to claim 1, characterized in that 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.

4. The vibration device according to claim 3, characterized in that The mass member is a mass ring arranged around the periphery of the magnetic member, and the mass ring is rotatably connected to the rotating shaft.

5. The vibration device according to claim 1, characterized in that 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°.

6. The vibration device according to claim 1, characterized in that In the first motor group, 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.

7. The vibration device according to any one of claims 1 to 6, characterized in that: The angle 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.

8. The vibration device according to any one of claims 1 to 6, characterized in that: The two turntable motors of the first motor group are respectively the first motor and the second motor, the two turntable motors of the second motor group are respectively the third motor and the fourth motor, the first motor and the third motor are adjacently arranged, and 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.

9. The vibration device according to any one of claims 1 to 6, characterized in that: A buffer is arranged on the surface of the limiting member.

10. An electronic device, characterized in that: The electronic device includes a housing and a vibration device according to any one of claims 1 to 9 disposed in the housing.

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