Turntable motor assembly and electronic equipment

Abstract

This disclosure provides a turntable motor assembly and electronic equipment. The turntable motor assembly includes a position limiting member and two horizontally arranged turntable motors. Each turntable motor includes a stator and an eccentric movable. The stator includes a coil assembly, and the eccentric movable includes a rotating shaft and an eccentric wheel, with the coil assembly provided 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 position limiting member is used to contact the two eccentric wheels and limit the rotation angle of each eccentric wheel. The turntable motor assembly can generate vibration by improving the structure of the eccentric wheel, which is effective in increasing the rotational speed of the motor and reducing energy consumption. At the same time, by arranging the two turntable motors horizontally, asymmetric vibration can be generated during operation.

Description

Technical Field

[0001] The present disclosure relates to the technical field of turntable motor assemblies, and particularly to turntable motor assemblies and electronic devices.

Background Art

[0002] Vibration motors are widely used in various fields and are devices that convert electrical energy into mechanical energy. Many conventional vibration motors are linear motor rotors, and the vibrations generated when reciprocating near the equilibrium position are symmetrically distributed and cannot generate asymmetric vibrations (anisotropic vibrations).

[0003] Therefore, there is a need to provide a new turntable motor assembly and an electronic device to solve or at least mitigate the above technical defects.

Summary of the Invention

Problems to be Solved by the Invention

[0004] The main object of the present disclosure is to provide a turntable motor assembly and an electronic device that aim to solve the technical problem that motors in the prior art cannot provide anisotropic vibrations.

[0005] To achieve the above object, according to one aspect of the present disclosure, the present disclosure provides a turntable motor assembly including a position limiting member and two horizontally arranged turntable motors. Each of the turntable motors includes a stator and an eccentric rotor. The stator includes a coil assembly, and the eccentric rotor includes a rotating shaft and an eccentric wheel. The coil assembly is provided at the top and / or bottom of the eccentric wheel. The eccentric wheel includes a magnetic assembly rotatably attached to the rotating shaft. The position limiting member is used to abut against the two eccentric wheels to limit the rotation angle of each eccentric wheel. <000​In one embodiment, the rotational and reverse rotational angles of the eccentric wheel are both 0° to 90°, the rotational directions of the two turntable motors are opposite, and the two turntable motors collide with the position limiting member simultaneously.

[0007] In one embodiment, the position limiting member includes a first position limiting surface and two second position limiting surfaces, and each of the eccentric rings includes a first contact surface and a second contact surface, the first contact surface being used to contact the first position limiting surface and the second contact surface being used to contact the second position limiting surfaces.

[0008] In one embodiment, the position limiting member further includes two guide surfaces, the two second position limiting surfaces being connected to the first position limiting surface via the two guide surfaces, the two second position limiting surfaces being mirror images of each other with respect to the line of symmetry, the two guide surfaces being mirror images of each other with respect to the line of symmetry, and both second position limiting surfaces being perpendicular to the first position limiting surface.

[0009] In one embodiment, the eccentric ring is semicircular or U-shaped.

[0010] In one embodiment, the magnetic assembly includes a magnetic member and a mass member connected to the magnetic member, the mass member being rotatably connected to the rotation axis.

[0011] In one embodiment, the mass member is a mass ring surrounded by the outer circumference of the magnetic member, and the mass ring is rotatably connected to the rotation shaft.

[0012] In one embodiment, the magnetic assembly includes a magnetic member rotatably connected to the rotating shaft.

[0013] In one embodiment, a cushioning member is provided on the surface of the position limiting member.

[0014] In another aspect of the present disclosure, the present disclosure further provides electronic equipment including a housing and the above-mentioned turntable motor assembly provided within the housing.

[0015] In the above solution, the turntable motor assembly includes a position limiting member and two horizontally arranged turntable motors. Each turntable motor includes a stator and an eccentric movable element. The stator includes a coil assembly, and the eccentric movable element includes a rotating shaft and an eccentric wheel, with the coil assembly located 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 position limiting member is used to contact the two eccentric wheels and limit the rotation angle of each eccentric wheel. In this invention, two horizontal turntable motors are arranged, each turntable motor includes an eccentric movable element, each eccentric movable element includes an eccentric wheel, and the center of mass of the eccentric wheel is not at the center of the rotating shaft. The acceleration generated when the two eccentric wheels collide with the position limiting member and stop during rotation is asymmetrically distributed, resulting in asymmetric vibration when the turntable motor assembly is operating. Thus, because the eccentric movable element has an eccentric structure, it generates a vibration sensation during rotation. Compared to conventional technologies that require the addition of eccentric blocks to the rotating shaft, this turntable motor assembly can generate vibration through an improved eccentric wheel structure, which is effective in increasing the motor's rotational speed and reducing energy consumption. At the same time, by arranging the two turntable motors horizontally, asymmetric vibration can be generated during operation.

[0016] To more clearly illustrate embodiments of this disclosure or technical solutions in the prior art, the following drawings are briefly presented as necessary for describing embodiments or the prior art. Clearly, the drawings described below represent only a few embodiments of this disclosure, and those skilled in the art can obtain other drawings based on the structures shown in these drawings without any creative effort. [Brief explanation of the drawing]

[0017] [Figure 1]FIG. 1 is a schematic diagram showing the structure of a turntable motor assembly according to an embodiment of the present disclosure. [Figure 2] FIG. 2 is a schematic diagram showing the structure of a turntable motor assembly according to an embodiment of the present disclosure (the coil assembly is hidden). [Figure 3] FIG. 3 is a schematic diagram showing the structure of a turntable motor according to an embodiment of the present disclosure. [Figure 4] FIG. 4 is a schematic diagram showing the structure of a position limiting member according to an embodiment of the present disclosure. [Figure 5] FIG. 5 is a schematic diagram showing the rotation of a turntable motor assembly according to an embodiment of the present disclosure. [Figure 6] FIG. 6 is a schematic diagram showing the resultant force received by the turntable motor assembly in the state of FIG. 5. [Figure 7] FIG. 7 is a schematic diagram showing the braking of a turntable motor assembly according to an embodiment of the present disclosure. [Figure 8] FIG. 8 is a schematic diagram showing the resultant force received by the turntable motor assembly in the state of FIG. 7. [Figure 9] FIG. 9 is a schematic diagram showing the reverse rotation of a turntable motor assembly according to an embodiment of the present disclosure. [Figure 10] FIG. 10 is a schematic diagram showing the resultant force received by the turntable motor assembly in the state of FIG. 9. [Figure 11] FIG. 11 is a schematic diagram showing the reverse braking of a turntable motor assembly according to an embodiment of the present disclosure. [Figure 12] FIG. 12 is a schematic diagram showing the resultant force received by the turntable motor assembly in the state of FIG. 11. [Figure 13] FIG. 13 is a waveform diagram of an input voltage signal and an acceleration signal during the rotation of a turntable motor assembly according to an embodiment of the present disclosure.

DETAILED DESCRIPTION OF THE INVENTION

[0018] The realization of the objectives, functional features, and advantages of the present disclosure will be further described in conjunction with the embodiments while referring to the accompanying drawings.

[0019] The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments of the present disclosure, all other embodiments obtained by those skilled in the art without creative efforts are included within the protection scope of the present disclosure.

[0020] Note that all direction indications (such as up, down, etc.) in the embodiments of the present disclosure are only used to explain the relative positional relationship and movement status between components in a specific posture (as shown in the figure). When the specific posture changes, the direction indications change accordingly.

[0021] Also, the descriptions such as "first", "second", etc. in the present disclosure are for the purpose of explanation only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of technical features. Therefore, the features defined as "first" and "second" may implicitly include at least one of such features.

[0022] Furthermore, the technical solutions between the embodiments of the present disclosure can be combined with each other, but it is necessary to assume that those skilled in the art can implement them. When the combination of technical solutions is contradictory or cannot be realized, such a combination of technical solutions does not exist and should be regarded as outside the protection scope required by the present disclosure.

[0023] Referring to Figures 1 to 4, according to one aspect of the present disclosure, the present disclosure provides a turntable motor assembly 100 including a position limiting member 4 and two horizontally arranged turntable motors 10. Each turntable motor 10 includes a stator 2 and an eccentric movable element 1, the stator 2 including a coil assembly, the eccentric movable element 1 including a rotating shaft 12 and an eccentric wheel 11, the coil assembly being provided on the top and / or bottom of the eccentric wheel 11, the eccentric wheel 11 including a magnetic assembly 111 rotatably mounted on the rotating shaft 12, and the position limiting member 4 being used to contact the two eccentric wheels 11 and limit the rotation angle of each eccentric wheel 11.

[0024] The coil assembly of the turntable motor 10 is positioned at the top and / or bottom of the eccentric wheel 11. The coil assembly may be positioned at the top of the eccentric wheel 11, 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 may be perpendicular to the plane of the paper. Next, current is supplied to the coil assembly. According to Ampère's law, the coil 21 in the coil assembly receives torque, and since the coil 21 is fixed, the coil 21 also gives a reaction torque to the magnetic assembly 111, causing the eccentric wheel 11 to rotate. The rotation center of the eccentric wheel 11 is the axis of the rotation shaft 12, and since the mass distribution of the eccentric wheel 11 is not uniform, the mass center and the rotation center of the eccentric wheel 11 are not the same point, and vibration occurs during rotation. In this embodiment, two horizontal turntable motors are provided, and the turntable motor 10 includes an eccentric movable element 1, which includes an eccentric wheel 11. The center of mass of the eccentric wheel 11 is not the center of the rotation axis 12, and the acceleration generated when the two eccentric wheels 11 collide with the position limiting member 4 and stop during rotation is distributed asymmetrically, resulting in asymmetric vibration when the turntable motor assembly 100 is operating. Thus, because the eccentric movable element 1 has an eccentric structure, it generates a vibration sensation during rotation. Compared to the conventional technology which requires the addition of an eccentric block to the rotation axis 12, this embodiment can generate a vibration sensation by improving the structure of the eccentric wheel 11, which is effective in improving the rotation speed of the motor and reducing energy consumption. At the same time, asymmetric vibration can be generated during operation by arranging the two turntable motors 10 horizontally.

[0025] Furthermore, the turntable motor 10 used in this invention does not have an iron core in its structure compared to other motors, and therefore does not generate cogging torque. Specifically, cogging torque can cause motor vibration and noise. Also, if the cogging torque is too large, the motor may stop rotating at a position where the cogging torque is too large. When cogging torque is present, the rotational speed of the motor fluctuates, the motor does not operate smoothly, and the motor's performance is affected. In a variable speed drive, if the torque ripple frequency matches the mechanical resonance frequency of the stator or rotor, the vibration and noise generated by the cogging torque are amplified. The presence of cogging torque also affects the low-speed performance of the motor in a speed control system and the high-precision positioning in a position control system. Therefore, in this embodiment, by employing the turntable motor 10, the operation of the turntable motor assembly 100 becomes smoother and noise is reduced.

[0026] In one embodiment, the rotational and counter-rotational angular ranges of the eccentric wheel 11 are both 0° to 90°, the rotational directions of the two turntable motors 10 are opposite, and the two turntable motors 10 collide with the position limiting member 4 simultaneously. The maximum rotational angle of the eccentric wheel 11 is 90°, and after rotating 90° and colliding with the position limiting member 4 and stopping, it can rotate another 90° in the opposite direction and collide with the position limiting member 4 again and stop. The structure of the two turntable motors 10 is the same, and the rotational speed and torque are equal, but the rotational directions are opposite. The fact that the two turntable motors 10 rotate in opposite directions means that one turntable motor 10 rotates clockwise and the other turntable motor 10 rotates counterclockwise, and the two turntable motors 10 do not rotate clockwise or counterclockwise simultaneously. Referring to Figures 8 and 12, the two turntable motors 10 collide with the corresponding position limiting member 4 simultaneously, and the collision force is generated simultaneously. During a collision, the centrifugal force disappears, leaving only the component in the y-direction.

[0027] Referring to Figures 4, 7, and 11, in one embodiment, the position limiting member 4 includes a first position limiting surface 41 and two second position limiting surfaces 42, and each of the eccentric wheels 11 includes a first contact surface 13 for contacting the first position limiting surface 41 and a second contact surface 14 for contacting the second position limiting surface 42. Here, there is only one position limiting member 4, there is one first position limiting surface 41, and there are two second position limiting surfaces 42 and two guide surfaces 43, the first position limiting surface 41 contacts the two first contact surfaces 13 simultaneously to limit the rotation angle of the eccentric wheel 11, and the two second position limiting surfaces 42 contact the second contact surfaces 14 of the two eccentric wheels 11 respectively to limit the rotation angle of the eccentric wheel 11, that is, the first position limiting surface 41 and the second position limiting surfaces 42 are used to limit the rotation angle and reverse rotation angle of the eccentric wheel 11, respectively. The center of the rotation axis 12 is also the rotation center of the eccentric wheel 11. The centers of the two rotation axes 12 are connected to form a line segment, which is the line connecting the centers of the rotation axes 12. Referring to Figure 1, the perpendicular line passing through the midpoint of this line segment, i.e., the perpendicular bisector, is the line of symmetry. In Figure 1, the dashed line H represents the line of symmetry. The two second position limiting surfaces 42 are mirror images of each other with respect to the line of symmetry, and the two guide surfaces 43 are also mirror images of each other with respect to the line of symmetry, thus exhibiting mirror symmetry. This design employs exactly the same structure and not only ensures that the two eccentric wheels 11 collide with the position limiting member 4 simultaneously, but also ensures that if the two eccentric wheels 11 rotate and collide with the position limiting member 4 simultaneously, the centrifugal force is eliminated at the time of collision, leaving only the component in the y direction.

[0028] As shown in Figures 1 to 4, in one embodiment, the position limiting member 4 further includes two guide surfaces 43, and the two second position limiting surfaces 42 are connected to the first position limiting surface 41 via the two guide surfaces 43, and both second position limiting surfaces 42 are positioned perpendicular to the first position limiting surface 41. The perpendicular bisector of the line connecting the centers of the two rotation axes 12 is the line of symmetry, and the two second position limiting surfaces 42 are positioned mirror images of each other with respect to the line of symmetry, and the two guide surfaces 43 are also positioned mirror images of each other with respect to the line of symmetry. The eccentric wheel 11 may be a semicircle with a central angle of 180°. The second position limiting surfaces 42 are positioned perpendicular to the first position limiting surface 41 at an angle of 90°, thereby limiting both the rotation angle and the counter-rotation angle of the eccentric wheel 11 to 0° to 90°, and enabling the generation of asymmetric vibration.

[0029] In one embodiment, there are two position limiting members 4, each positioned to correspond to one of the two eccentric wheels 11, and each position limiting member 4 contacts the corresponding eccentric wheel 11 to limit the rotation angle of the eccentric wheel 11. There may be two position limiting members 4, each positioned to correspond to an eccentric wheel 11 and limiting the rotation angle of the corresponding eccentric wheel 11. The eccentric wheels 11 collide with or contact the corresponding position limiting member 4. Compared to a design with only one position limiting member 4, the movements of the two eccentric wheels 11 do not affect each other, and even if the two eccentric wheels 11 collide with one position limiting member 4 at the same time, the vibration generated by one eccentric wheel 11 does not affect the other eccentric wheel 11.

[0030] In one embodiment, each position limiting member 4 includes a first position limiting surface 41, a second position limiting surface 42, and a guide surface 43 connecting the first position limiting surface 41 and the second position limiting surface 42, and each eccentric wheel 11 includes a first contact surface 13 and a second contact surface 14. The first contact surface 13 is used to contact the first position limiting surface 41, and the second contact surface 14 is used to contact the second position limiting surface 42. The first position limiting surface 41 and the second position limiting surface 42 are arranged perpendicularly, and the perpendicular bisector of the line connecting the centers of the two rotation axes 12 is the line of symmetry, with the two position limiting members 4 being arranged as mirror images with respect to the line of symmetry. Here, there are two position limiting members 4, and each position limiting member 4 includes one first position limiting surface 41, one second position limiting surface 42, and one guide surface 43. The first position limiting surface 41 and the second position limiting surface 42 of one position limiting member 4 contact the first contact surface 13 and the second contact surface 14 of one eccentric wheel 11, respectively, thereby limiting the rotation angle of one eccentric wheel 11. The first position limiting surface 41 and the second position limiting surface 42 of the other position limiting member 4 contact the first contact surface 13 and the second contact surface 14 of the other eccentric wheel 11, respectively, thereby limiting the rotation angle and reverse rotation angle of the other eccentric wheel 11. The center of the rotation axis 12 is also the rotation center of the eccentric wheel 11. The centers of the two rotation axes 12 are connected to form a line segment that connects the centers of the rotation axes 12. A perpendicular line passing through the midpoint of this line segment, i.e., the perpendicular bisector, is defined as the line of symmetry, and the two position limiting members 4 are arranged in a mirror image with respect to this line of symmetry. This design ensures that the two eccentric wheels 11 collide with the position limiting member 4 simultaneously, and that when the two eccentric wheels 11 collide with the position limiting member 4 simultaneously, the centrifugal force is eliminated during the collision, leaving only the component in the y-direction.

[0031] In one embodiment, the eccentric wheel is semicircular or U-shaped. The shape of the eccentric wheel 11 can vary and may be semicircular or U-shaped. Those skilled in the art can set it according to their actual needs. Those skilled in the art will understand that if the maximum rotation angle of the eccentric wheel 11 needs to be 90°, it needs to be set specifically according to the shape of the position limiting member 4.

[0032] Referring to Figure 3, in one embodiment, the magnetic assembly 111 includes a magnetic member 1111 and a mass member 1112 connected to the magnetic member 1111, the mass member 1112 being rotatably connected to the rotation axis 12. The magnetic member 1111 receives an ampere force and generates torque that rotates the eccentric wheel 11. The magnetic member 1111 may be a permanent magnet, and the mass member 1112 is generally made from a relatively high-density material such as lead or tungsten alloy. The density of the mass member 1112 is much greater than the density of the permanent magnet. When setting the size, it is necessary to set the mass of the mass member 1112 to be greater than the mass of the permanent magnet. Installing the mass member 1112 can enhance the vibration sensation. The method of connecting the magnetic member 1111 and the mass member 1112 can take various forms. It is sufficient to ensure that the center of mass of the eccentric wheel 11 does not coincide with the center of rotation axis 12. For example, the mass member 1112 may be fitted inside the magnetic member 1111, or the mass member 1112 and magnetic member 1111 may be arranged alternately around the outer circumference of the rotating shaft 12, or the mass member 1112 may be arranged around the outer circumference of the magnetic member 1111. There may also be multiple mass members 1112, and the multiple mass members 1112 may be arranged with intervals between them. In this embodiment, by providing the mass member 1112, the vibration sensation of the turntable motor 10 can be increased.

[0033] Referring to Figure 3, in one embodiment, the mass member 1112 is a mass ring surrounded on the outer circumference of the magnetic member 1111, and the mass ring is rotatably connected to the rotation shaft 12. The mass member 1112 is designed to surround the outer circumference of the magnetic member 1111 in a ring shape, which not only firmly fixes the magnetic member 1111 and protects it from damage due to collision, but also, because the mass of the mass member 1112 is large, placing it on the outer circumference makes the eccentric effect more pronounced, and the resulting vibration sensation becomes stronger. Specifically, the magnetic member 1111 may be semicircular, and the mass ring is a semicircular ring surrounded on the outer circumference of the magnetic member 1111.

[0034] In one embodiment, the magnetic assembly 111 includes a magnetic member 1111 that is rotatably connected to the rotating shaft 12. Of course, a mass member 1112 is not required, and the magnetic member 1111 may be directly and rotatably mounted to the rotating shaft 12. The magnetic member 1111 receives an ampere force and generates a torque that rotates the eccentric wheel 11. At this time, since the center of mass of the magnetic member 1111 does not coincide with the center of the rotating shaft 12, an eccentric effect is obtained. In this case, the magnetic member 1111 may be semicircular in shape.

[0035] In one embodiment, a cushioning member is provided on the surface of the position limiting member 4, and this cushioning member is a rubber layer or a foamed material layer. The cushioning member is provided on the contact surface of the position limiting member 4 that contacts the eccentric wheel 11. The position limiting member 4 is made of a metal material to improve strength and support capacity, and the cushioning member is used to reduce noise, cushion impact forces, and prevent damage. Specifically, the cushioning member may be made of foamed material or rubber material.

[0036] In one embodiment, the turntable motor assembly 100 further includes a shell 3, the turntable motor 10 is housed within the shell 3, and the shell 3 has mounting holes for attaching a position limiting member 4. The shell 3 may include an upper shell and a lower shell, the upper shell having an upper through-hole for attaching the position limiting member 4, and the lower shell having a lower through-hole for attaching the position limiting member 4. The upper and lower through-holes are arranged opposite each other, and the position limiting member 4 may be attached to the upper and lower through-holes by an engagement mechanism. The coil assembly may include only a coil 21 fixed to the shell 3, or it may include a coil frame and a coil 21 wound around the coil frame, the coil frame being attached to the shell 3 to support the winding of the coil 21.

[0037] To clearly explain how this disclosure is implemented, the technical solutions and beneficial effects of this disclosure are described below in conjunction with the attached drawings.

[0038] In one specific embodiment, the turntable motor assembly 100 includes two horizontally arranged turntable motors 10, each turntable motor 10 includes a position limiting member 4 and an eccentric movable element 1, the stator 2 includes a coil assembly, the coil assembly includes a coil 21, the eccentric movable element 1 includes a rotating shaft 12 and an eccentric wheel 11, the coil assembly is provided on the top and / or bottom of the eccentric wheel 11. The eccentric wheel 11 includes a magnetic assembly 111 rotatably mounted on the rotating shaft 12, the magnetic assembly 111 includes a magnetic member 1111 and a mass member 1112 surrounded on the outer circumference of the magnetic member 1111, the mass member 1112 is a mass ring surrounded on the outer circumference of the magnetic member 1111, and the position limiting member 4 abuts against the two eccentric wheels 11 to limit the rotation angle of each eccentric wheel 11.

[0039] Referring to Figures 5 to 12, F1 represents centrifugal force, F2 represents braking force, and F = 1 indicates the resultant force on the turntable motor assembly 100. The direction of the rotating thick arrows in Figures 6 and 10 indicates the torque force exerted by the eccentric movable element 1 on the shell of the turntable motor assembly 100. Since the mass member 1112 generally has a large mass, its center of mass is considered to be located on the mass member 1112, and a point on the mass member 1112 is selected as the point of force application when analyzing the force. Specifically, Referring to Figures 5 and 6, the turntable motor 10 on the left in Figure 5 rotates counterclockwise, and the turntable motor 10 on the right rotates clockwise. Figure 6 shows a schematic diagram of the resultant force acting on the turntable motor assembly 100 during the rotation process. After rotation begins, the torque and the x-components of the centrifugal force of the two eccentric movable elements 1 are equal in magnitude and opposite in direction, canceling each other out, leaving only the y-component of centrifugal force.

[0040] Referring to Figures 7 and 8, Figure 7 shows that the eccentric wheel 1111 rotates 90° and brakes, colliding with the position limiting member 4, and Figure 8 shows a schematic diagram of the resultant force received by the turntable motor assembly 100 when the collision occurs. During the collision, the centrifugal force disappears, and a braking force is generated in the -y direction.

[0041] Referring to Figures 9 and 10, Figure 9 shows a schematic diagram of the reverse rotation of the eccentric wheels 1111 after braking, where the left turntable motor 10 rotates clockwise and the right turntable motor 10 rotates counterclockwise. Figure 10 shows a schematic diagram of the resultant force acting on the reverse-rotating turntable motor assembly 100, where the x components of the torque and centrifugal force of the two eccentric movable elements 1 cancel each other out, leaving only the y component.

[0042] Referring to Figures 11 and 12, Figure 11 shows that the eccentric wheel 1111 rotates 90° in the opposite direction after braking, then returns to its initial position, brakes, and collides with the position limiting member 4. Figure 12 shows a schematic diagram of the resultant force received by the turntable motor assembly 100 when braking occurs during reverse rotation. At the time of collision, the centrifugal force is eliminated, and the braking forces of the movable elements of the two turntable motors 10 cancel each other out.

[0043] Because the eccentric movable element 1 is eccentric, the vibrations generated during rotation and braking are asymmetric vibrations. Specifically, please refer to Figure 13. Curve A in Figure 13 represents the electrical signal input by the motor, and curve B in Figure 13 represents the acceleration signal of the turntable motor assembly 100 collected by the acceleration sensor. The horizontal axis represents time, the left vertical axis represents the input voltage, and the right vertical axis represents 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 waveforms of the acceleration signals show an asymmetric distribution. Therefore, it can be seen that the turntable motor assembly 100 is generating asymmetric vibrations.

[0044] In another aspect of this disclosure, the disclosure further provides an electronic device comprising a housing and the turntable motor assembly 100 described above, disposed within the housing. Since the electronic device incorporates all of the technical solutions of all the embodiments of the turntable motor assembly 100 described above, it has all the beneficial effects brought about by all of the technical solutions described above, which will not be described individually here. The electronic device may be a mobile phone or a joystick, etc.

[0045] Finally, the above embodiments are used solely to illustrate the technical solutions of the present application and are not intended to limit the scope of the patent of this disclosure. Although the present application has been described in detail with reference to the above embodiments, those skilled in the art will understand that, based on the technical idea of ​​the present disclosure, the technical solutions described in each embodiment are still modifiable, or some or all of the technical features can be replaced with equivalents, or applied directly or indirectly to other related technical fields, and that such modifications or substitutions do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of each embodiment of the present application, and that all of these should be included within the scope of the claims and specification of the present application. In particular, the various technical features described in each embodiment can be combined in any way, provided that there is no structural inconsistency. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions included in the claims. [Explanation of Symbols]

[0046] 100, turntable motor assembly, 10, turntable motor, 1, eccentric movable element, 11, eccentric wheel, 111, magnetic assembly, 1111, magnetic member, 1112, mass member, 12, rotating shaft, 13, first contact surface, 14, second contact surface, 2, stator, 21, coil, 3, shell, 4, position limiting member, 41, first position limiting surface, 42, second position limiting surface, 43, guide surface.

Claims

1. A turntable motor assembly comprising a position limiting member and two horizontally arranged turntable motors, each turntable motor comprising a stator and an eccentric movable, the stator comprising a coil assembly, the eccentric movable comprising a rotating shaft and an eccentric wheel, the coil assembly provided on the top and / or bottom of the eccentric wheel, the eccentric wheel comprising a magnetic assembly rotatably mounted on the rotating shaft, and the position limiting member being used to contact the two eccentric wheels and limit the rotation angle of each eccentric wheel.

2. The turntable motor assembly according to claim 1, characterized in that the rotational and reverse rotational angle ranges of the eccentric wheel are both 0° to 90°, the rotational directions of the two turntable motors are opposite, and the two turntable motors collide with the position limiting member simultaneously.

3. The turntable motor assembly according to claim 1, characterized in that the position limiting member includes a first position limiting surface and two second position limiting surfaces, each of the eccentric wheels includes a first contact surface and a second contact surface, the first contact surface is used to contact the first position limiting surface, and the second contact surface is used to contact the second position limiting surfaces.

4. The turntable motor assembly according to claim 3, wherein the position limiting member further includes two guide surfaces, the two second position limiting surfaces being connected to the first position limiting surface via the two guide surfaces, the two second position limiting surfaces being mirror images of each other with respect to the line of symmetry, the two guide surfaces being mirror images of each other with respect to the line of symmetry, and both second position limiting surfaces being perpendicular to the first position limiting surface.

5. The turntable motor assembly according to any one of claims 1 to 4, characterized in that the eccentric wheel is semicircular or U-shaped.

6. The turntable motor assembly according to any one of claims 1 to 4, wherein 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 rotation shaft.

7. The turntable motor assembly according to claim 6, characterized in that the mass member is a mass ring surrounded on the outer circumference of the magnetic member, and the mass ring is rotatably connected to the rotating shaft.

8. The turntable motor assembly according to any one of claims 1 to 4, characterized in that the magnetic assembly includes a magnetic member rotatably connected to the rotating shaft.

9. The turntable motor assembly according to any one of claims 1 to 4, characterized in that a buffer member is provided on the surface of the position limiting member.

10. An electronic device comprising a housing and a turntable motor assembly according to any one of claims 1 to 9 provided within the housing.

Images