Multi-mode vibration motor

Abstract

The utility model relates to a kind of multi-mode vibration motor, comprising: shell, its length extends along first direction;Output shaft, it is located in the shell along first direction;First motor assembly, it is connected with the output shaft, and is used to drive the reciprocating movement of the output shaft along the first direction;Second motor assembly, it is connected with the output shaft and / or first motor assembly, and is used to drive the circumferential reciprocating rotation of the output shaft along the first direction;When working, the output shaft can simultaneously circumferential reciprocating rotation along the first direction and reciprocating movement along first direction.The output shaft of the utility model can simultaneously circumferential reciprocating rotation along the first direction and reciprocating movement along first direction, to increase the diversity of the movement mode of motor, can further satisfy the demand of user.

Description

Technical Field

[0001] This utility model relates to the field of motors, and in particular to a multi-mode vibration motor. Background Technology

[0002] Miniature motors are widely used in various electric products, such as electric toothbrushes and electric toys. However, the output shaft of existing miniature motors cannot move both linearly and circumferentially at the same time, resulting in a relatively limited range of motion modes that cannot meet user needs.

[0003] The information disclosed in the background section of this utility model is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that such information constitutes prior art known to those skilled in the art. Utility Model Content

[0004] To address the problems existing in the prior art, this utility model provides a multi-mode vibration motor, whose output shaft can simultaneously reciprocate in a circumferential direction and reciprocate in a first direction, thereby increasing the diversity of the motor's motion modes and further meeting user needs.

[0005] This utility model provides a multi-mode vibration motor, comprising: a housing extending along a first direction; an output shaft disposed within the housing along the first direction; a first motor assembly connected to the output shaft and used to drive the output shaft to reciprocate along the first direction; and a second motor assembly connected to the output shaft and / or the first motor assembly and used to drive the output shaft to reciprocate circumferentially along the first direction. During operation, the output shaft can simultaneously reciprocate circumferentially along the first direction and reciprocate along the first direction.

[0006] Preferably, the multi-mode vibration motor further includes: a first bearing housing located within the housing and mounted to the first motor assembly, and having a first mounting cavity; and a first bearing mounted to the first mounting cavity, wherein a first end of the output shaft is mounted to the first bearing.

[0007] Preferably, the multi-mode vibration motor further includes: a second bearing housing mounted to the housing and having a second mounting cavity, located on the side of the second motor assembly away from the first motor assembly; and a second bearing mounted to the second mounting cavity; wherein the output shaft is mounted on the second bearing, and the position of the second bearing in contact with the output shaft is capable of elastic deformation.

[0008] Preferably, the inner surface of the second bearing has a plurality of elastic strips distributed circumferentially along the first side, with gaps between the elastic strips, so that the second bearing has elastic deformation capability.

[0009] Preferably, the multi-mode vibration motor further includes: a limiting ring, which is mounted to the housing and has a mounting hole, the mounting hole having a first limiting surface, the limiting ring being able to rotate only relative to the housing in a circumferential direction along a predetermined angle; the portion of the output shaft near the first motor assembly has a second limiting surface corresponding to the first limiting surface; the output shaft forms a limiting engagement with the limiting ring through the cooperation of the second limiting surface and the first limiting surface, so that the output shaft cannot rotate relative to the limiting ring in a circumferential direction along the first direction, and the output shaft can only rotate only relative to the housing around its own axis by a predetermined angle.

[0010] Preferably, the first motor assembly includes: a first stator assembly fixed inside the housing; two first spring plates disposed inside the housing and spaced apart along a first direction, located on both sides of the first stator assembly, the first spring plates being capable of elastic deformation along the first direction; and a first mover assembly, both ends of which are respectively connected to the first spring plates and correspond to the first stator assembly in a second direction; wherein the first bearing housing is connected to one of the two first spring plates.

[0011] Preferably, the first mover assembly includes: a first mover core, the two ends of which are respectively connected to the first spring; and a first magnet, which is disposed on the first mover core and faces the first stator assembly.

[0012] Preferably, the first mover core includes an integrally formed: a support portion, two connecting portions, and a positioning portion; the two connecting portions extend from the two ends of the support portion along a first direction in a direction away from each other and are inclined towards the first stator assembly; the positioning portions extend from their respective corresponding connecting portions along the first direction in a direction away from each other; wherein the inner end of the first spring has a positioning hole corresponding to the positioning portion, and the positioning portion of the first mover core is engaged with the positioning hole.

[0013] Preferably, the second motor assembly includes: a second stator assembly fixed within the housing; and a second mover assembly mounted on the output shaft and capable of driving the output shaft to rotate circumferentially about the axis of the output shaft in a first direction.

[0014] Preferably, the second mover assembly includes: a second mover core mounted to the middle of the output shaft; and a plurality of second magnets spaced apart along the circumferential direction on the second mover core and facing the second stator assembly.

[0015] The output shaft of the multi-mode vibration motor of this utility model embodiment can simultaneously reciprocate in the circumferential direction along the first direction and reciprocate in the first direction, so as to increase the diversity of the motor's motion modes and further meet the needs of users.

[0016] The device of this invention has other features and advantages that will be apparent from or will be set forth in detail in the accompanying drawings and subsequent embodiments incorporated herein, which together serve to explain the particular principles of this invention. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the multi-mode vibration motor according to an embodiment of the present invention;

[0018] Figure 2 for Figure 1 3D exploded view;

[0019] Figure 3A This is a schematic diagram of the shell structure;

[0020] Figure 3B This is a schematic diagram of the shell structure from another perspective;

[0021] Figure 4A This is a connection diagram of the first motor assembly;

[0022] Figure 4B This is a schematic diagram of the structure of the first stator core;

[0023] Figure 4C This is a schematic diagram of the structure of the first coil frame;

[0024] Figure 4D This is a schematic diagram of the structure of the first moving core;

[0025] Figure 4E This is a schematic diagram of the structure of the first fragment;

[0026] Figure 4F This is a schematic diagram of the structure of the first bearing housing;

[0027] Figure 4G This is a schematic diagram of the structure of the first bearing housing from another perspective;

[0028] Figure 5A A connection diagram of the second motor assembly.

[0029] Figure 5B for Figure 5A Front view;

[0030] Figure 5C for Figure 5A Side view;

[0031] Figure 5D for Figure 5A Cross-sectional view at point AA;

[0032] Figure 5E for Figure 5A Cross-sectional view at point BB;

[0033] Figure 5F for Figure 5C Cross-sectional view at point C;

[0034] Figure 6A This is a schematic diagram of the structure of the second stator core;

[0035] Figure 6B This is a schematic diagram of the structure of the second mover core;

[0036] Figure 7 This is a schematic diagram of the output shaft.

[0037] Figure 8 This is a schematic diagram of the limiting ring structure;

[0038] Figure 9A This is a schematic diagram of the structure of the second bearing housing;

[0039] Figure 9B This is a schematic diagram of the second bearing.

[0040] Figure 10 This is a schematic diagram of the second spring.

[0041] Explanation of reference numerals in the attached figures:

[0042] 1000, Housing; 1110, First Plate; 1120, Second Plate; 1001, First Slot; 1002, Second Slot; 1103, First Heat Dissipation Vent; 1104, Third Slot; 1105, Second Heat Dissipation Vent;

[0043] 2000, Output shaft; 2001, Second limiting surface;

[0044] 3000, First motor assembly;

[0045] 3100, First stator assembly; 3110, First stator core; 3111, First magnetic shoe part; 3112, Third protrusion; 3120, First coil; 3130, First coil frame; 3131, First coil frame body; 3132, Baffle;

[0046] 3200, First spring clip; 3201, Positioning hole; 3202, First protrusion; 3203, Second protrusion; 3210, Inner ring; 3220, Outer ring;

[0047] 3300, First mover assembly; 3310, First mover core; 3311, Supporting part; 3312, Connecting part; 3313, Positioning part; 3314, Matching plane; 3315, First mounting groove; 3316, Tip; 3317, Notch; 3320, First magnet;

[0048] 4000, Second motor assembly;

[0049] 4100, Second stator assembly; 4110, Second stator core; 4111, Second magnetic shoe section; 4120, Second coil; 4130, Second coil frame;

[0050] 4200, Second mover assembly; 4210, Second mover core; 4211, Second mounting slot; 4212, Mounting hole; 4213, Third limiting surface; 4220, Second magnet;

[0051] 5000, First bearing housing; 5001, First mounting cavity; 5002, First bearing; 5003, Second bearing; 5004, Opening; 5005, Second bearing housing; 5006, Second mounting cavity; 5007, Elastic strip;

[0052] 6000, second fragment;

[0053] 7000, counterweight;

[0054] 7100, Positioning part; 7101, Tip; 7102, Notch;

[0055] 7200, Counterweight body;

[0056] 8000, Limiting ring; 8001, Mounting hole; 8002, First limiting surface;

[0057] 9001, End plate.

[0058] It should be understood that the accompanying drawings are not necessarily drawn to scale, but rather present simplified representations of various features to illustrate the basic principles of this invention. The specific design features disclosed in this invention (including, for example, specific dimensions, orientations, positions, and shapes) will be determined in part by the specific application and environment in which they will be used.

[0059] Throughout these figures, the same reference numerals denote the same or equivalent parts of the present invention. Detailed Implementation

[0060] The present invention will now be described in detail with reference to various embodiments, examples of which are presented in the accompanying drawings and described below. Although the present invention will be described in conjunction with exemplary embodiments, it should be understood that this specification is not intended to limit the present invention to these exemplary embodiments. Rather, the present invention is intended to cover not only these exemplary embodiments, but also various alternatives, modifications, equivalents and other embodiments that may be included within the spirit of the present invention and the scope defined by the appended claims.

[0061] The following is combined Figures 1 to 10 The multi-mode vibration motor of this utility model will be described.

[0062] like Figure 1 and Figure 2 As shown, the multi-mode vibration motor of this utility model includes: a housing 1000, an output shaft 2000, a first motor assembly 3000, and a second motor assembly 4000.

[0063] The length of the housing 1000 extends along the first direction.

[0064] The output shaft 2000 is disposed in the housing 1000 along the first direction, and the second end of the output shaft 2000 extends out of the housing 1000.

[0065] The first motor assembly 3000 is connected to the output shaft 2000 and is used to drive the output shaft 2000 to reciprocate along a first direction.

[0066] The second motor assembly 4000 is connected to the output shaft 2000 and / or the first motor assembly 3000, and is used to drive the output shaft 2000 to reciprocate circumferentially in a first direction.

[0067] During operation, the output shaft 2000 can simultaneously rotate circumferentially along the first direction and move reciprocally along the first direction.

[0068] The output shaft 2000 of this utility model embodiment can simultaneously reciprocate in the circumferential direction along the first direction and reciprocate in the first direction, thereby increasing the diversity of the motor's motion modes and further meeting user needs. Of course, according to actual vibration requirements, through control, the output shaft 2000 can be made to reciprocate only in the first direction, reciprocate only in the circumferential direction along the first direction, or reciprocate in the circumferential direction and reciprocate in the first direction simultaneously; how the output shaft 2000 actually moves depends on the actual control, and the structure of this application enables the output shaft 2000 to achieve multiple motion modes.

[0069] In an exemplary implementation, such as Figure 1 , Figure 2 and Figure 5D As shown, the multi-mode vibration motor of this utility model further includes: a first bearing housing 5000 and a first bearing 5002.

[0070] The first bearing housing 5000 is located within the housing 1000 and is mounted to the first motor assembly 3000, and has a first mounting cavity 5001 (see mating details). Figure 4F Specifically, the first bearing housing 5000 is installed onto the first spring 3200 of the first motor assembly 3000, which will be described later.

[0071] The first bearing 5002 is installed in the front half of the first mounting cavity 5001, and the first end of the output shaft 2000 is installed in the first bearing 5002, so that the output shaft 2000 can rotate circumferentially in the first direction relative to the first bearing housing 5000 about the axis of the output shaft 2000 (see mating details). Figure 5D That is, it is able to rotate circumferentially in a first direction relative to the first motor assembly 3000 about the axis of the output shaft 2000.

[0072] Specifically, such as Figure 4G As shown, the first bearing housing 5000 has an opening 5004 for the positioning portion 3313 of the first mover assembly 3300 (described later) to pass through, so as to mount the first bearing housing 5000 onto the first spring piece 3200 of the first motor assembly 3000.

[0073] In other implementation schemes, the first bearing housing 5000 can also be mounted to the first spring 3200 of the first motor assembly 3000.

[0074] In an exemplary implementation, such as Figure 2 , Figure 5D , Figure 5E , Figure 9A and Figure 9B As shown, the multi-mode vibration motor of this utility model further includes: a second bearing housing 5005 and a second bearing 5003.

[0075] The second bearing housing 5005 is connected to the housing 1000 and has a second mounting cavity 5006, located on the side of the second motor assembly 4000 away from the first motor assembly 3000. The second bearing housing 5005 and the housing 1000 may be fixedly connected or integrally formed.

[0076] The second bearing 5003 is installed into the second mounting cavity 5006.

[0077] The output shaft 2000 is mounted on the second bearing 5003, and the second end of the output shaft 2000 passes through the second bearing 5003. The position of the second bearing 5003 in contact with the output shaft 2000 can generate elastic deformation to adapt to the reciprocating compound motion of the output shaft 2000 along the first direction and the circumferential direction.

[0078] Specifically, such as Figure 9B As shown, the inner surface of the second bearing 5003 has a plurality of elastic strips 5007 distributed circumferentially along the first direction, with gaps between the elastic strips 5007, so that the second bearing 5003 has elastic deformation capability, thereby adapting to the reciprocating compound motion mode of the output shaft 2000 along the first direction and the circumferential direction of the first direction. The second bearing 5003 may be a plastic bearing.

[0079] In an exemplary implementation, such as Figure 2 , Figure 5C , Figure 5D and Figure 5E As shown, the multi-mode vibration motor of this utility model further includes a limiting ring 8000, which is installed to the housing 1000 and has a mounting hole 8001 (see details below). Figure 8 The mounting hole 8001 has a first limiting surface 8002. The limiting ring 8000 can only rotate circumferentially relative to the housing 1000 along a first direction by a predetermined angle. For example, a hole that mates with the limiting ring 8000 can be provided on the housing 1000 to constrain the rotation range of the limiting ring 8000, so that the limiting ring 8000 can only rotate by a predetermined angle.

[0080] like Figure 7 As shown, the portion of the output shaft 2000 near the first motor assembly 3000 has a second limiting surface 2001 corresponding to the first limiting surface 8002. The second limiting surface 2001 fits into the first limiting surface 8002, thereby forming a limiting fit, so that the limiting ring 8000 and the output shaft 2000 can rotate synchronously, but cannot rotate relative to each other.

[0081] The output shaft 2000 can reciprocate relative to the limiting ring 8000 along the first direction, but cannot rotate circumferentially relative to the limiting ring 8000 along the first direction. This allows the limiting ring 8000 to restrict the rotation angle of the output shaft 2000 around its axis along the first direction, so that the output shaft 2000 can only rotate a predetermined angle relative to the housing 1000 around its own axis, but at the same time, it will not interfere with the reciprocating movement of the output shaft 2000 along the first direction.

[0082] In an exemplary implementation, such as Figure 2 and Figure 4AAs shown, the first motor assembly 3000 includes: a first stator assembly 3100, two first spring sheets 3200 and a first mover assembly 3300.

[0083] The first stator assembly 3100 is fixed inside the housing 1000.

[0084] Two first spring sheets 3200 are disposed inside the housing 1000 and are spaced apart along the first direction, and are located on both sides of the first stator assembly 3100. The first spring sheets 3200 are capable of elastic deformation along the first direction.

[0085] The two ends of the first moving part assembly 3300 are respectively connected to the first spring piece 3200 and correspond to the first stator assembly 3100 in the second direction.

[0086] The first bearing housing 5000 is connected to one of the two first spring pieces 3200. The first stator assembly 3100 and the first mover assembly 3300 can interact to drive the first spring piece 3200 to reciprocate along the first direction, thereby driving the output shaft 2000 to reciprocate along the first direction.

[0087] exist Figure 4A In this embodiment, the first bearing housing 5000 is connected to one of the two first springs 3200. However, in other embodiments, the first bearing housing 5000 may also be directly connected to the first mover assembly 3300 to be driven by the first mover assembly 3300 and thus reciprocate along the first direction (not shown in the figure).

[0088] In an exemplary implementation, such as Figure 4A As shown, the first stator assembly 3100 includes a first stator core 3110 and a first coil 3120.

[0089] The first stator core 3110 is fixed inside the housing 1000. The first stator core 3110 is provided with a first magnetic shoe portion 3111 facing the first rotor assembly 3300. The first magnetic shoe portion 3111 is perpendicular to the first direction (see reference). Figure 4A and Figure 4B ).

[0090] The first coil 3120 is fitted onto the first magnetic shoe 3111 (see details). Figure 4A ).

[0091] In an exemplary implementation, such as Figure 4A As shown, a first coil frame 3130 is also provided between the first coil 3120 and the first magnetic shoe portion 3111. The first coil frame 3130 is used to insulate and isolate the first coil 3120 and the first magnetic shoe portion 3111. In addition, the first coil frame 3130 can also prevent the first coil 3120 from becoming loose.

[0092] like Figure 4A and Figure 4C As shown, the first coil frame 3130 includes a cylindrical first coil frame body 3131 and baffles 3132 located at both ends of the first coil frame body 3131. The internal cavity of the first coil frame body 3131 passes through the baffles 3132. The first coil frame body 3131 is fitted onto the first magnetic boot portion 3111, and the baffles 3132 are approximately flush with the ends of the first magnetic boot portion 3111. The first coil 3120 is fitted onto the first coil frame body 3131 and is constrained by the baffles 3132.

[0093] In an exemplary implementation, such as Figure 1 and Figure 4A As shown, the plane of the first spring 3200 is perpendicular to the first direction and is spiral-shaped. A portion of the outer edge of the first spring 3200 is fixed to the housing 1000, and the inner end of the first spring 3200 is used to install to the output shaft 2000 and the first mover assembly 3300.

[0094] like Figure 4E As shown, the first spring 3200 is in the shape of a sheet, and the material used to make the first spring 3200 is not limited. As a preferred option, it can be made of metal.

[0095] like Figure 4E As shown, a hollow space is formed between the inner ring 3210 and the outer ring 3220 of the first spring piece 3200, thus giving it the ability to deform elastically.

[0096] In an exemplary implementation, such as Figure 4E As shown, the outer edge of the first spring 3200 has a first protrusion 3202 and a second protrusion 3203. The first protrusion 3202 extends along a second direction, and the second protrusion 3203 extends along a third direction. The second direction is perpendicular to the third direction and to the first direction.

[0097] like Figure 3A and Figure 3B As shown, the housing 1000 has a first slot 1001 and a second slot 1002. A first protrusion 3202 is engaged in the first slot 1001, and a second protrusion 3203 is engaged in the second slot 1002, so that a portion of the outer edge of the first spring 3200 is fixed to the housing 1000.

[0098] The first protrusion 3202 and the second protrusion 3203 extend in different directions, so that the first spring 3200 can be more stable by engaging it from different sides.

[0099] Since the first bearing 5002 is fixed to the first spring 3200, the first bearing 5002 and the first bearing seat 5000 can reciprocate along the first direction following the first spring 3200, thereby enabling the output shaft 2000 to reciprocate along the first direction following the first spring 3200.

[0100] In an exemplary implementation, such as Figure 2 and Figure 4A As shown, the first mover assembly 3300 includes: a first mover core 3310 and a first magnet 3320.

[0101] The two ends of the first moving core 3310 are respectively connected to the first spring 3200.

[0102] The first magnet 3320 is disposed on the first mover core 3310 and faces the first stator assembly 3100.

[0103] exist Figure 2 and Figure 4A In the implementation scheme, only one first magnet 3320 is provided. When the direction of the current flowing through the first coil 3120 changes, the first coil 3120 generates different virtual magnetic poles to interact with the first magnet 3320 and drive the first magnet 3320 to move, thereby driving the entire first mover assembly 3300 to reciprocate along the first direction.

[0104] In other implementations, the first magnet 3320 can also be configured as multiple. Multiple here includes two, three, or even more.

[0105] When multiple first magnets 3320 are provided, the multiple first magnets 3320 are spaced apart on the first mover core 3310 along the first direction and face the first stator assembly 3100.

[0106] The magnetic poles of two adjacent first magnets 3320 along the first direction are opposite to those of the first stator assembly 3100. When the direction of the current flowing through the first coil 3120 changes, the first coil 3120 can interact with different first magnets 3320 to drive the first magnets 3320 to move, thereby driving the entire first mover assembly 3300 to reciprocate along the first direction.

[0107] In an exemplary implementation, such as Figure 4A and Figure 4D As shown, the first moving core 3310 includes, integrally formed, a support portion 3311, two connecting portions 3312, and a positioning portion 3313.

[0108] The two connecting portions 3312 extend from the two ends of the support portion 3311 along the first direction away from each other and are inclined toward the first stator assembly 3100.

[0109] The positioning part 3313 extends from its respective corresponding connecting part 3312 along the first direction in a direction away from each other.

[0110] Among them, such as Figure 4E As shown, the inner end of the first spring piece 3200 has a positioning hole 3201 corresponding to the positioning part 3313, and the positioning part 3313 of the first moving core 3310 is engaged in the positioning hole 3201 (in conjunction with the above). Figure 4A ).

[0111] In an exemplary implementation, such as Figure 4D As shown, the positioning part 3313 is provided with relatively spaced tips 3316, and a notch 3317 that gradually narrows from the outside to the inside is formed between the two tips 3316. This facilitates the positioning part 3313 to be inserted into the positioning hole 3201 of the first spring piece 3200 and the opening 5004 of the first bearing seat 5000 (see fitting details). Figure 4A ).

[0112] In an exemplary implementation, such as Figure 4D As shown, the end of the connecting part 3312 away from the bearing part 3311 has a matching plane 3314 that fits with the first spring piece 3200, and the positioning part 3313 extends outward from the matching plane 3314 along the first direction.

[0113] In an exemplary implementation, such as Figure 4D As shown, the support portion 3311 has a first mounting groove 3315, the opening of which faces the first stator assembly 3100 and is used to mount the first magnet 3320.

[0114] In one possible implementation, the first mounting slots 3315 of the support portion 3311 are provided in multiple locations and distributed along a first direction. In this implementation, the magnetic poles of two adjacent first magnets 3320 facing the first stator assembly 3100 are opposite. When the direction of the current flowing through the first coil 3120 changes, the first coil 3120 can interact with different first magnets 3320 to drive the first magnets 3320 to move, thereby driving the entire first mover assembly 3300 to reciprocate.

[0115] The number of first mounting slots 3315 is related to the number of first magnets 3320. The shape of the first mounting slots 3315 matches the shape of the first magnets 3320.

[0116] In an exemplary implementation, such as Figure 2 As shown, the second motor assembly 4000 includes: a second stator assembly 4100 and a second mover assembly 4200.

[0117] The second stator assembly 4100 is fixed inside the housing 1000.

[0118] The second actuator assembly 4200 is mounted on the output shaft 2000.

[0119] The second stator assembly 4100 and the second mover assembly 4200 can interact to drive the second mover assembly 4200 to rotate circumferentially about the axis of the output shaft 2000 along the first direction, thereby driving the output shaft 2000 to rotate circumferentially about the axis of the output shaft 2000 along the first direction.

[0120] In an exemplary implementation, such as Figures 5A to 5F As shown, the second mover assembly 4200 includes a second mover core 4210 and a plurality of second magnets 4220.

[0121] The second mover core 4210 is installed in the middle of the output shaft 2000 (see details). Figure 5D and Figure 5E It can reciprocate along the first direction with the output shaft 2000, and make the output shaft 2000 rotate with the second mover core 4210.

[0122] Multiple second magnets 4220 are spaced apart along the circumferential direction on the second mover core 4210 and face the second stator assembly 4100.

[0123] Specifically, the outer peripheral surface of the second moving core 4210 has a plurality of second mounting grooves 4211 distributed along the circumferential direction (see also [reference]). Figure 5F and Figure 6B The opening of the second mounting groove 4211 is radially outward, and the cross-section of the second mounting groove 4211 is fan-shaped. The second mounting groove 4211 is used to mount the second magnet 4220.

[0124] The cross-section of the second magnet 4220 is fan-shaped.

[0125] The number of second mounting slots 4211 is related to the number of second magnets 4220. The shape of the second mounting slots 4211 matches the shape of the second magnets 4220.

[0126] like Figure 6B As shown, the interior of the second moving core 4210 has a mounting hole 4212, and the mounting hole 4212 has a third limiting surface 4213 corresponding to the second limiting surface 2001, so that the output shaft 2000 and the second moving core 4210 cannot rotate relative to each other. That is, when the second moving core 4210 rotates circumferentially in the first direction around the axis of the output shaft 2000, it will drive the output shaft 2000 to rotate circumferentially in the first direction around the axis of the output shaft 2000.

[0127] In an exemplary implementation, such as Figure 6A As shown, the second stator assembly 4100 includes: a second stator core 4110 and a second coil 4120.

[0128] The second stator core 4110 is fixed inside the housing 1000. The second stator core 4110 surrounds the second mover assembly 4200 and is provided with a second magnetic shoe portion 4111 facing the second mover core 4210.

[0129] The second coil 4120 is fitted onto the second magnetic shoe 4111 (see details). Figure 5D , Figure 5E , Figure 5F ).

[0130] The number of second magnetic shoe sections 4111 and second coils 4120 corresponds to the number of sections, and multiple sections can be provided. The magnetic poles of two adjacent second magnets 4220 facing the same second coil 4120 are opposite.

[0131] exist Figures 5D to 6A In the implementation scheme, there are two of each of the second magnetic shoe part 4111 and the second coil 4120.

[0132] When the direction of the electric charge flowing through the second coil 4120 changes, the second coil 4120 can interact with different second magnets 4220 to drive the second magnets 4220 to reciprocate around the axis of the output shaft 2000 in the first direction, thereby driving the second mover assembly 4200 to reciprocate around the axis of the output shaft 2000 in the first direction, and thus driving the output shaft 2000 to reciprocate around the axis of the output shaft 2000 in the first direction.

[0133] In an exemplary implementation, such as Figures 5D to 5F As shown, a second coil frame 4130 is also provided between the second coil 4120 and the second magnetic shoe portion 4111. The second coil frame 4130 is used to insulate and isolate the second coil 4120 and the second magnetic shoe portion 4111.

[0134] In an exemplary implementation, such as Figure 1 and Figure 2 As shown, the multi-mode vibration motor further includes: two second spring plates 6000 and a counterweight block 7000.

[0135] Two second springs 6000 are disposed inside the housing 1000 and are spaced apart along the first direction, and are located on the side of the first spring 3200 away from the output shaft 2000. The second springs 6000 are capable of elastic deformation along the first direction.

[0136] The counterweight 7000 is located between the two second springs 6000, and both ends of the counterweight 7000 are attached to the two second springs 6000.

[0137] The structure and installation method of the second spring 6000 are the same as those of the first spring 3200.

[0138] In an exemplary implementation, such as Figure 10 As shown, the plane of the second spring 6000 is perpendicular to the first direction and is spiral-shaped. A portion of the outer edge of the second spring 6000 is fixed to the housing 1000. The inner end of the second spring 6000 has a positioning hole 3201, which is used to install it to the counterweight 7000.

[0139] The second shrapnel 6000 is in the form of a sheet, and the material used to make the second shrapnel 6000 is not limited. As a preferred option, it can be made of metal.

[0140] like Figure 10 As shown, a hollow space is formed between the inner ring 3210 and the outer ring 3220 of the second spring 6000, thus giving it the ability to deform elastically.

[0141] In an exemplary implementation, such as Figure 10 As shown, the outer edge of the second spring 6000 has a first protrusion 3202 and a second protrusion 3203. The first protrusion 3202 extends along a second direction, and the second protrusion 3203 extends along a third direction. The second direction is perpendicular to the third direction and to the first direction, respectively.

[0142] The first protrusion 3202 of the second spring 6000 is engaged with the first slot 1001, and the second protrusion 3203 of the second spring 6000 is engaged with the second slot 1002, so that a portion of the outer edge of the second spring 6000 is fixed to the housing 1000.

[0143] The first protrusion 3202 and the second protrusion 3203 of the second spring 6000 extend in different directions. In this way, by engaging the second spring 6000 from different sides, the second spring 6000 can be made more stable.

[0144] In an exemplary embodiment, the counterweight 7000 includes a counterweight body 7200 and positioning portions 7100 at both ends of the counterweight body 7200. The positioning portions 7100 of the counterweight 7000 are engaged with the positioning holes 3201 of the second spring 6000.

[0145] The positioning part 7100 is provided with relatively spaced tips 7101, and a notch 7102 that gradually narrows from the outside to the inside is formed between the two tips 7101. This makes it easier for the positioning part 7100 to be inserted into the positioning hole 3201 of the second spring 6000.

[0146] To maximize heat dissipation and ensure the secure mounting of the first spring contact 3200 and the second spring contact 6000, the housing 1000 is open and includes a first plate 1110 and a second plate 1120 that are connected to each other and perpendicular to each other (see...). Figure 3A The vertical here includes 90° vertical and near 90° vertical.

[0147] The first plate 1110 and the second plate 1120 can be flat or non-flat, depending on the specific requirements. Preferably, they can be planar or near-planar.

[0148] As shown in 3A, the first plate 1110 has a first heat dissipation vent 1103 and third slots 1104 located on both sides of the first heat dissipation vent 1103. The first slot 1001 is disposed on the first plate 1110, and the second slot 1002 is disposed on the second plate 1120.

[0149] like Figure 4A and Figure 4B As shown, the first stator assembly 3100 has a third protrusion 3112, which is engaged with the third slot 1104. Specifically, the third protrusion 3112 is disposed on the first stator core 3110.

[0150] When the first stator core 3110 is mounted on the first plate 1110, the first heat dissipation port 1103 corresponds to the first stator core 3110, thereby facilitating heat dissipation.

[0151] For ease of installation, the second slot 1002 is located at the edge of the second plate 1120, thus making the second slot 1002 open (see also...). Figure 3B ).

[0152] In an exemplary implementation, such as Figure 3A and Figure 3B As shown, the first plate 1110 has a second heat dissipation vent 1105, and the second stator core 4110 is installed at the second heat dissipation vent 1105, which facilitates heat dissipation.

[0153] In an exemplary implementation, such as Figure 1 As shown in Figure 3, the housing 1000 has an end plate 9001 at one end in the first direction near the counterweight 7000.

[0154] Thus, the oscillating linear motor of this utility model is formed, and its working principle is as follows:

[0155] When the first coil 3120 is energized, a virtual magnetic pole is generated on the first magnetic shoe 3111. This virtual magnetic pole interacts with the first magnet 3320 in the first mover assembly 3300: like poles repel and unlike poles attract, thereby driving the first magnet 3320 to move along the first direction. When the current in the first coil 3120 changes alternately, the polarity of the virtual magnetic pole changes alternately, thereby driving the first magnet 3320 to move back and forth. In this way, the first mover assembly 3300 can be driven to move back and forth along the first direction, which in turn drives the first bearing seat 5000 and the first bearing 5002 to move back and forth along the first direction, thereby driving the output shaft 2000 to move back and forth along the first direction.

[0156] When the second coil 4120 is energized, a virtual magnetic pole is generated on the second magnetic shoe 4111. This virtual magnetic pole interacts with the second magnet 4220 in the second mover assembly 4200: like poles repel and unlike poles attract, thereby causing the second magnet 4220 and the output shaft 2000 to rotate circumferentially around the axis of the output shaft 2000 in the first direction. When the current in the second coil 4120 changes alternately, the polarity of the virtual magnetic pole changes alternately, thereby causing the second magnet 4220 and the output shaft 2000 to rotate circumferentially around the axis of the output shaft 2000 in the first direction.

[0157] The limiting ring 8000 can only rotate a predetermined angle circumferentially along the first direction. The output shaft 2000 can reciprocate relative to the limiting ring 8000 along the first direction, but cannot rotate relative to the limiting ring 8000 along the first direction. This ensures that the output shaft 2000 can only rotate a predetermined angle relative to the housing 1000 around its own axis, thereby preventing the output shaft 2000 from rotating 360° circumferentially around its own axis along the first direction.

[0158] The position where the second bearing 5003 contacts the output shaft 2000 can generate elastic deformation, so as not to interfere with the reciprocating motion of the output shaft 2000 in a compound mode along the first direction and the circumferential direction of the first direction.

[0159] Since the first mover assembly 3300 and the output shaft 2000 are mounted on the first spring 3200, the first spring 3200 can elastically deform along the first direction, enabling the first mover assembly 3300 and the output shaft 2000 to vibrate at high frequency in the first direction. Under the action of the first spring 3200, the first mover assembly 3300 and the output shaft 2000 can easily reverse direction, thereby improving the torque of the motor device. Furthermore, since the first mover assembly 3300 and the output shaft 2000 are mounted on the first spring 3200, they are less likely to generate noise during reciprocating movement, thus helping to reduce the noise of the motor device.

[0160] The second spring 6000 can generate elastic deformation along the first direction, and the counterweight 7000 is installed on the two second springs 6000, which can reduce the vibration amplitude of the housing 1000, thereby effectively slowing down the vibration of the housing 1000.

[0161] For ease of interpretation and precise definition of the appended claims, the terms “upper,” “lower,” “inner,” “outer,” “above,” “below,” “above,” “below,” “upward,” “downward,” “front,” “back,” “behind,” “inner side,” “outer side,” “inward,” “outer,” “internal,” “external,” “inner,” “external,” “forward,” and “backward” are used to describe the features of the exemplary embodiments with reference to the positions of these features shown in the accompanying drawings.

[0162] The foregoing description of specific exemplary embodiments of the present invention is for illustrative and descriptive purposes. It is not intended to be exhaustive, nor to limit the invention to the precise forms disclosed; obviously, many changes and variations are possible in accordance with the foregoing teachings. The exemplary embodiments were chosen and described to explain the specific principles of the invention and its practical application, thereby enabling others skilled in the art to implement and utilize various exemplary embodiments of the invention, as well as their different alternatives and modifications. The scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A multi-mode vibration motor, characterized in that, include: A housing whose length extends along a first direction; An output shaft is disposed in the housing along a first direction; The first motor assembly is connected to the output shaft via a first bearing housing and a first bearing disposed within the housing, and is used to drive the output shaft to reciprocate along the first direction; A second motor assembly is connected to the output shaft and / or the first motor assembly and is used to drive the output shaft to reciprocate circumferentially along the first direction. During operation, the output shaft can simultaneously reciprocate in the circumferential direction along the first direction and reciprocate in the first direction. The first bearing housing is disposed between the first motor assembly and the second motor assembly, and is installed to the first motor assembly; The first bearing housing has a first mounting cavity, the first bearing is mounted into the first mounting cavity, and the first end of the output shaft is mounted to the first bearing.

2. The multi-mode vibration motor as described in claim 1, characterized in that, It further includes: A second bearing housing, which is connected to the housing and has a second mounting cavity, is located on the side of the second motor assembly away from the first motor assembly; and The second bearing is installed into the second mounting cavity; The output shaft is mounted on the second bearing, and the position of the second bearing in contact with the output shaft is capable of elastic deformation.

3. The multi-mode vibration motor as described in claim 2, characterized in that, The inner surface of the second bearing has a plurality of elastic strips circumferentially distributed along a first direction, with gaps between the elastic strips, so that the second bearing has elastic deformation capability.

4. The multi-mode vibration motor as described in claim 1, characterized in that, It further includes: A limiting ring is mounted to the housing and has a mounting hole with a first limiting surface. The limiting ring can only rotate circumferentially relative to the housing along a first direction by a predetermined angle. The portion of the output shaft near the first motor assembly has a second limiting surface corresponding to the first limiting surface; The output shaft is limited by the cooperation of the second limiting surface and the first limiting surface, so that the output shaft cannot rotate circumferentially relative to the limiting ring along the first direction, and the output shaft can only rotate a predetermined angle relative to the housing around its own axis.

5. The multi-mode vibration motor as described in claim 1, characterized in that, The first motor assembly includes: The first stator assembly is fixed within the housing; Two first spring sheets are disposed within the housing and spaced apart along a first direction, located on opposite sides of the first stator assembly. The first spring sheets are capable of elastic deformation along the first direction. The first moving part assembly has its two ends connected to the first spring piece, and corresponds to the first stator assembly in the second direction; The first bearing housing is connected to one of the two first spring plates.

6. The multi-mode vibration motor as described in claim 5, characterized in that, The first moving part component includes: The first moving core has its two ends connected to the first spring piece; and A first magnet is disposed on the first mover core and faces the first stator assembly.

7. The multi-mode vibration motor as described in claim 6, characterized in that, The first moving core includes, integrally formed, a bearing portion, two connecting portions, and a positioning portion; The two connecting portions extend from the two ends of the support portion along the first direction in a direction away from each other and are inclined toward the first stator assembly; The positioning parts extend from their respective connecting parts along the first direction in a direction away from each other; The inner end of the first spring piece has a positioning hole corresponding to the positioning part, and the positioning part of the first moving core is engaged with the positioning hole.

8. The multi-mode vibration motor as described in claim 1, characterized in that, The second motor assembly includes: The second stator assembly, which is fixed within the housing; and The second actuator assembly is mounted on the output shaft and is capable of driving the output shaft to rotate circumferentially about the axis of the output shaft in a first direction.

9. The multi-mode vibration motor as described in claim 8, characterized in that, The second moving part includes: The second mover core is mounted to the middle of the output shaft; and Multiple second magnets are spaced apart along the circumferential direction on the second mover core and face the second stator assembly.

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