A hybrid motor

Abstract

The application provides a hybrid motor, which comprises a shell with a containing space, a rotor assembly contained in the containing space, a stator assembly, a vibration assembly contained in the containing space and radially spaced from the outer circumferential side of the stator assembly, and a first elastic support and a second elastic support respectively fixed to the axial two ends of the vibration assembly, the vibration assembly interacts with the magnetic assembly to make the vibration assembly vibrate along the axis of the rotating shaft; the inner circumferential edges of the first elastic support and the second elastic support are respectively fixed to two support skeletons, and the outer circumferential edges of the first elastic support and the second elastic support are respectively fixed to the axial two ends of the vibration assembly, so as to elastically suspend the vibration assembly in the shell; the application can combine the low-frequency vibration of the rotor motor and the medium-high-frequency vibration of the linear motor, and realize a complex vibration experience scene.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of electric machines, and particularly relates to a hybrid motor. BACKGROUND

[0002] Portable electronic devices such as mobile phones, handheld game consoles, navigation devices and the like of the prior art are increasingly popular among people, and these products generally use a linear motor for system feedback, such as incoming call prompts, message prompts, navigation prompts, vibration feedback of game consoles and the like. The existing voice coil motor is mostly a cylindrical motor, which generally fixes the coil part as a stator, and the magnetic steel and counterweight as a rotor. When the coil is energized, an axial ampere force is generated under the action of the permanent magnetic field, so that the rotor reciprocates under the action of the periodic ampere force, and then the force is transmitted to the shell through the spring sheet, so that the desired vibration experience is obtained.

[0003] However, the traditional voice coil motor mostly belongs to a Z-axis linear motor, and thus has problems of insufficient low-frequency vibration, distortion of low frequency, and hard vibration experience; and cannot realize a complex vibration experience scene to give users a rich vibration experience with multiple combinations and multiple functions. SUMMARY

[0004] The application provides a hybrid motor, which can effectively fuse the low-frequency vibration of a rotor motor and the medium-high frequency vibration response of a linear motor, and realize a complex vibration experience scene.

[0005] To solve the above technical problems, the application provides a hybrid motor, which comprises:

[0006] a shell with a receiving space, a rotor assembly received in the receiving space, and a stator assembly; the rotor assembly comprises a rotating shaft, an eccentric wheel, a first winding unit and a commutating device, the eccentric wheel is fixed to one end of the rotating shaft, and the commutating device is fixed to the other end of the rotating shaft away from the eccentric wheel; the eccentric wheel is sequentially sleeved on the rotating shaft along the axial direction of the rotating shaft and rotates with the rotating shaft;

[0007] the stator assembly comprises a magnetic assembly arranged radially at the outer circumferential side of the rotor assembly, and two support skeletons arranged at the axial two ends of the magnetic assembly respectively, and the two support skeletons are fixed with the shell respectively;

[0008] the rotor assembly is rotationally connected to the shell and the two support skeletons, and the first winding unit is used for interacting with the magnetic assembly to make the rotor assembly rotate;

[0009] The hybrid motor further comprises a vibration assembly accommodated in the accommodation space and radially spaced from the outer circumferential side of the stator assembly, and a first elastic support and a second elastic support respectively fixed to the axial two ends of the vibration assembly, the vibration assembly interacts with the magnetic assembly to make the vibration assembly vibrate along the axis of the rotating shaft in the axial direction;

[0010] The inner circumferential edges of the first elastic support and the second elastic support are respectively fixed to the two support frames, and the outer circumferential edges of the first elastic support and the second elastic support are respectively fixed to the axial two ends of the vibration assembly, so as to elastically suspend the vibration assembly inside the shell.

[0011] As a further improvement of the present application, the magnetic assembly comprises at least one magnetic unit, and the magnetic unit comprises a first magnetic steel, and a first iron core and a second iron core coaxially arranged and respectively abutting against the axial two ends of the first magnetic steel.

[0012] As a further improvement of the present application, the inner side wall of the first iron core is uniformly and inwardly spaced to be provided with at least two first claw poles, the inner side wall of the second iron core is uniformly and inwardly spaced to be provided with at least two second claw poles, the number of the first claw poles and the second claw poles is the same, and the orthographic projections of all the first claw poles and all the second claw poles on a plane perpendicular to the rotating shaft are uniformly and spacedly arranged and do not overlap with each other.

[0013] As a further improvement of the present application, the first claw pole comprises a first claw pole body extending from the inner side wall of the first iron core towards the rotor assembly and a first claw pole extension extending from the first claw pole body towards the first magnetic steel, and the second claw pole comprises a second claw pole body extending from the inner side wall of the second iron core towards the rotor assembly and a second claw pole extension extending from the second claw pole body towards the first magnetic steel, and the thickness of the first claw pole extension and the second claw pole extension along the axis of the rotating shaft is less than the axial thickness of the first magnetic steel.

[0014] As a further improvement of the present application, the first magnetic steel is magnetized along the axis of the rotating shaft.

[0015] As a further improvement of the present application, the vibration assembly comprises a coil frame, and a first coil and a second coil circumferentially arranged on the outer side wall of the coil frame, the current directions of the first coil and the second coil are opposite, and the outer circumferential edges of the first elastic support and the second elastic support are respectively fixed to the axial two ends of the coil frame.

[0016] As a further improvement of the present application, the rotor assembly further comprises a rotor core sleeved and fixed to the rotating shaft, the rotor core comprising a plurality of winding teeth, and the first winding unit comprising a plurality of third coils wound on the plurality of winding teeth.

[0017] As a further improvement of the present application, the rotor core is a multi-layer core stack.

[0018] As a further improvement of the present application, the first winding unit is a hollow cup coil sleeved on the outer circumferential side of the rotating shaft.

[0019] As a further improvement of the present application, the commutating device comprises a first bracket sleeved on the rotating shaft, and a commutator arranged on the outer circumferential wall of the first bracket.

[0020] As a further improvement of the present application, the housing comprises a first housing with both ends open, a top cover and a bottom cover fixed to the opposite ends of the first housing; the first housing, the top cover and the bottom cover jointly enclose the accommodation space;

[0021] The housing further comprises a second housing with both ends open and covered on the end of the bottom cover close to the top cover, the second housing, the bottom cover, the stator assembly and the rotor assembly jointly enclosing a second accommodation space.

[0022] As a further improvement of the present application, the hybrid motor further comprises a first brush and a second brush accommodated in the second accommodation space and fixed at one end to the bottom cover and clamped at the other end to the outer lateral wall of the commutator, the included angle between the first brush and the second brush being 90 degrees.

[0023] As a further improvement of the present application, the two support skeletons comprise a first skeleton covered on the end of the first core away from the first magnetic steel, and a second skeleton covered on the end of the second core away from the first magnetic steel;

[0024] The first skeleton is provided with a first protruding portion extending in the direction away from the first magnetic steel, the second skeleton is provided with a second protruding portion extending in the direction away from the first magnetic steel, the top cover and the second housing are respectively provided with a first connecting portion and a second connecting portion at the positions corresponding to the first protruding portion and the second protruding portion, and the rotating shaft penetrates the first connecting portion, the first protruding portion, the second protruding portion and the second connecting portion in sequence.

[0025] As a further improvement of the present application, the first protruding portion is inserted into the first connecting portion after penetrating the inner circumferential edge of the first elastic bracket, and the second protruding portion is inserted into the second connecting portion after penetrating the inner circumferential edge of the second elastic bracket.

[0026] As a further improvement of the application, the rotating shaft and the first protruding part are clamped with a first bearing, the first bearing and the first winding unit are provided with a shaft sleeve, and the first bearing and the shaft sleeve are provided with a first gasket.

[0027] As a further improvement of the application, the rotating shaft and the second connecting part are clamped with a second bearing, and the second bearing and the commutator are provided with a second gasket.

[0028] As a further improvement of the application, the bottom cover is provided with a first boss and a second boss, and the first brush and the second brush are respectively fixed on the first boss and the second boss away from the commutator.

[0029] As a further improvement of the application, the first magnetic steel is a sintered neodymium iron boron magnetic steel.

[0030] As a further improvement of the application, the shell, the first iron core and the second iron core are all strong magnetic conductive materials.

[0031] As a further improvement of the application, the current input signals between the rotor assembly and the vibration assembly are independent of each other.

[0032] Compared with the prior art, the application forms a first main magnetic circuit of external axial vibration between the magnetic assembly and the vibration assembly, realizes the characteristics of high frequency response and strong vibration feeling of the hybrid motor through the first main magnetic circuit, forms a second main magnetic circuit of internal rotation between the rotor assembly and the magnetic assembly, and improves the low frequency vibration experience of the motor through the second main magnetic circuit. The magnetic assembly is shared by the rotor assembly and the vibration assembly as the same magnetic source, the magnetic circuits of external axial vibration and internal rotation are fused, the rotor assembly and the vibration assembly are independent of each other and do not interfere with each other, the hybrid motor provided by the application has excellent medium and high frequency performance of the linear motor and low frequency performance of the rotor motor under the limitation of the conventional device size, realizes the characteristics of fast medium and high frequency response and strong vibration feeling of the linear motor, and realizes excellent low frequency vibration experience of the rotor motor, so that the user can have rich vibration experience in multiple combinations, multiple ways and multiple functions. BRIEF DESCRIPTION OF DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor.

[0034] Figure 1 The structure schematic diagram of the hybrid motor provided by Embodiment One of the application.

[0035] Figure 2 The perspective assembly view of the shell in the hybrid motor according to Embodiment One of the present application.

[0036] Figure 3 The structure schematic view of the vibration assembly, the stator assembly and the rotor assembly in the hybrid motor according to Embodiment One of the present application.

[0037] Figure 4 The structure schematic view of the stator assembly and the rotor assembly in the hybrid motor according to Embodiment One of the present application.

[0038] Figure 5 The perspective assembly view of the vibration assembly in the hybrid motor according to Embodiment One of the present application.

[0039] Figure 6 The perspective assembly view of the stator assembly in the hybrid motor according to Embodiment One of the present application.

[0040] Figure 7 The perspective assembly view of the rotor assembly in the hybrid motor according to Embodiment One of the present application.

[0041] Figure 8 The structure schematic view of the first winding unit and the rotating shaft in the hybrid motor according to Embodiment One of the present application.

[0042] Figure 9 The structure schematic view of the commutating device and the rotating shaft in the hybrid motor according to Embodiment One of the present application.

[0043] Figure 10 The structure schematic view of the commutating device and the second shell in the hybrid motor according to Embodiment One of the present application.

[0044] Figure 11 The top view of the magnetic unit in the hybrid motor according to Embodiment One of the present application.

[0045] Figure 12 The realization principle view of the rotor assembly in the hybrid motor according to Embodiment One of the present application.

[0046] Figure 13 The three-phase voltage signal example view provided by the rotor assembly shown in Figure 12 The three-phase voltage signal example view provided by the rotor assembly shown in

[0047] Figure 14 The side view of the shell in the hybrid motor according to Embodiment One of the present application.

[0048] Figure 15 The cross-sectional view of the hybrid motor along A-A direction shown in Figure 14 The cross-sectional view of the hybrid motor along A-A direction shown in

[0049] Figure 16 The schematic diagram of the first main magnetic circuit M1 and the second main magnetic circuit M2 in the hybrid motor provided in Embodiment One of the present application.

[0050] Figure 17 The structural schematic diagram of the hollow cup coil in the hybrid motor provided in another embodiment of the present application.

[0051] Figure 18 The specific embodiment diagram of the rotor core in the hybrid motor provided in another embodiment of the present application.

[0052] Figure 19 The specific embodiment diagram of the magnetic assembly in the hybrid motor provided in another embodiment of the present application.

[0053] Legend of reference signs:

[0054] 10 - rotor assembly; 11 - rotating shaft; 111 - first bearing; 112 - shaft sleeve; 113 - first gasket; 114 - second bearing; 115 - second gasket; 12 - eccentric wheel; 13 - first winding unit; 131 - third coil; 132 - hollow cup coil; 14 - commutating device; 141 - first bracket; 142 - commutator; 143 - commutator segment; 15 - rotor core; 151 - winding tooth; 16 - first electric brush; 17 - second electric brush;

[0055] 20 - stator assembly; 21 - support framework; 22 - first framework; 221 - first protruding part; 23 - second framework; 231 - second protruding part; 24 - magnetic assembly; 25 - magnetic unit; 26 - first magnetic steel; 27 - first core; 270 - first claw pole; 271 - first claw pole body; 272 - first claw pole extension; 28 - second core; 280 - second claw pole; 281 - second claw pole body; 282 - second claw pole extension;

[0056] 30 - vibration assembly; 31 - coil framework; 311 - wire routing groove; 32 - first coil; 33 - second coil; 34 - first elastic bracket; 35 - second elastic bracket; 36 - hollowed-out groove;

[0057] 40 - housing; 401 - accommodation space; 402 - second accommodation space; 41 - first housing; 42 - top cover; 421 - first connecting part; 43 - bottom cover; 431 - first boss; 432 - second boss; 44 - second housing; 441 - second connecting part. DETAILED DESCRIPTION

[0058] In order to make the purpose, technical solutions and advantages of the present application more clear, the present application is further described in detail below with reference to the drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, and are not used to limit the present application.

[0059] In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly and specifically limited. All directional indications (such as upper, lower, left, right, front, rear, etc.) in the embodiments of the present application are only used to explain the relative position relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications will also change accordingly. In addition, the terms "comprise" and "have" and any variations thereof are intended to cover non-exclusive inclusion.

[0060] In order to make the description of the present disclosure more detailed and complete, the following describes the embodiments of the present application and specific examples; but this is not the only form of implementation or use of the specific embodiments of the present application. The embodiments include the features of the specific embodiments and the method steps and their order for constructing and operating the specific embodiments. However, other specific embodiments can also be used to achieve the same or equivalent functions and step sequences.

[0061] The voice coil motor in the related art is mostly a cylindrical motor. This type of motor usually fixes the coil part as a stator, and fixes the magnetic steel and the counterweight as a rotor. When the coil is energized, an axial ampere force is generated under the action of the permanent magnetic field, so that the rotor reciprocates under the action of the periodic ampere force, and then the force is transmitted to the shell through the spring piece, so as to obtain the desired vibration experience. However, this traditional voice coil motor belongs to a Z-axis linear motor, so there are problems of insufficient low-frequency vibration and easy distortion of low-frequency.

[0062] In view of this, please refer to Figures 1-19 The present application provides a hybrid motor which can effectively integrate the low-frequency vibration of the rotor motor and the medium-high frequency vibration response of the linear motor, and realize a complex vibration experience scene.

[0063] Specifically, please refer to Figure 1 The hybrid motor provided in Embodiment One of the present application includes a shell 40 having a receiving space 401, and a rotor assembly 10, a stator assembly 20 and a vibration assembly 30 received in the receiving space 401.

[0064] Please refer to Figure 7 The hybrid motor provided in Embodiment One of the present application includes a shell 40 having a receiving space 401, and a rotor assembly 10, a stator assembly 20 and a vibration assembly 30 received in the receiving space 401.

[0065] Please refer to Figure 4 , the structure schematic diagram of the stator assembly and the rotor assembly in the hybrid motor provided by the embodiment one of the present application, the stator assembly 20 provided by the present application includes the magnetic assembly 24 radially spaced on the outer peripheral side of the rotor assembly 10, and the two support skeletons 21 respectively arranged at the axial two ends of the magnetic assembly 24, and the two support skeletons 21 are respectively fixed with the shell 40.

[0066] In the embodiment one of the present application, the rotor assembly 10 is rotationally connected to the shell 40 and the two support skeletons 21, and the rotation of the rotor assembly 10 is realized through the interaction between the first winding unit 13 and the magnetic assembly 24.

[0067] Please refer to Figure 3 , the structure schematic diagram of the vibration assembly, the stator assembly and the rotor assembly in the hybrid motor provided by the embodiment one of the present application, the vibration assembly 30 is also accommodated in the accommodation space 401, the vibration assembly 30 is radially spaced on the outer peripheral side of the stator assembly 20, and the first elastic support 34 and the second elastic support 35 are respectively arranged at the axial two ends of the vibration assembly 30, and the vibration assembly 30 is vibrated along the axial direction of the rotation shaft 11 through the interaction between the vibration assembly 30 and the magnetic assembly 24.

[0068] Further, the inner edges of the first elastic support 34 and the second elastic support 35 are respectively fixed on the two support skeletons 21, and the outer edges of the first elastic support 34 and the second elastic support 35 are respectively fixed at the axial two ends of the vibration assembly 30, so as to elastically suspend the vibration assembly 30 inside the shell 40.

[0069] In this way, the first main magnetic circuit M1 of external axial vibration is formed between the magnetic assembly 24 and the vibration assembly 30, the characteristics of high frequency response and strong vibration feeling of the hybrid motor are realized through the first main magnetic circuit M1; the second main magnetic circuit M2 of internal rotation is formed between the rotor assembly 10 and the magnetic assembly 24, the low frequency vibration experience of the hybrid motor is realized through the second main magnetic circuit M2; the magnetic assembly 24 shared by the rotor assembly 10 and the vibration assembly 30 is arranged as the same magnetic source, the fusion of the magnetic circuits of external axial vibration and internal rotation is realized; and the rotor assembly 10 and the vibration assembly 30 are independent of each other and do not interfere with each other, so that the hybrid motor provided by the present application has the excellent medium and high frequency performance of the linear motor and the low frequency performance of the rotor motor under the limitation of the conventional device size, and provides the user with rich vibration experience in multiple combinations, multiple modes and multiple functions.

[0070] As an optional implementation, please refer to Figure 6As shown in the perspective assembly view of the stator assembly 20 in the hybrid motor of the embodiment one of the present application, the magnetic assembly 24 provided by the present application comprises at least one magnetic unit 25, which comprises the first magnetic steel 26, and the first and second iron cores 27 and 28 coaxially arranged and respectively abutting the axial two ends of the first magnetic steel 26.

[0071] Further, referring to Figure 11 As shown in the top view of the magnetic unit 25 in the hybrid motor of the embodiment one of the present application, the inner side wall of the first iron core 27 is uniformly and inwardly spaced to extend to provide at least two first claw poles 270, and the inner side wall of the second iron core 28 is uniformly and inwardly spaced to extend to provide at least two second claw poles 280. It can be observed that the number of the first claw poles 270 is the same as that of the second claw poles 280, and the orthogonal projection of all the first claw poles 270 and all the second claw poles 280 on the plane perpendicular to the rotation shaft 11 is uniformly and alternately arranged without overlapping.

[0072] It can be understood that the arrangement of the first claw poles 270 and the second claw poles 280 in the orthogonal projection on the plane perpendicular to the rotation shaft 11 can ensure the uniform distribution of the magnetic field in space and ensure the force balance of the rotor assembly 10 during rotation. If the first claw poles 270 and the second claw poles 280 partially overlap, it may cause the local magnetic flux to be too concentrated to cause magnetic short circuit and reduce the utilization rate of the magnetic field.

[0073] In an alternative embodiment one, referring to Figure 11 The above first claw pole 270 comprises the first claw pole body 271 extending from the inner side wall of the first iron core 27 to the direction of the rotor assembly 10, and the first claw pole extension 272 extending from the first claw pole body 271 to the direction of the first magnetic steel 26. Similarly, the second claw pole 280 comprises the second claw pole body 281 extending from the inner side wall of the second iron core 28 to the direction of the rotor assembly 10, and the second claw pole extension 272 extending from the second claw pole body 281 to the direction of the first magnetic steel 26.

[0074] In the embodiment one of the present application, the first claw pole body 271 and the second claw pole body 281 extend from the inner side wall of the first iron core 27 to the direction of the rotor assembly 10, so that the first claw pole body 271 and the second claw pole body 281 are relatively close to the first winding unit 13, thereby increasing the magnetic flux density and effectively improving the response speed of the rotor assembly 10.

[0075] Preferably, the thickness of the first claw pole extension 272 and the second claw pole extension 272 along the axial direction of the rotation shaft 11 is less than the axial thickness of the first magnetic steel 26, which simplifies the assembly steps of the magnetic unit 25 and improves the assembly efficiency of the hybrid motor.

[0076] Further, the first magnetic steel 26 is magnetized along the axial direction of the rotating shaft 11, and the first magnetic steel 26 magnetized in the axial direction cooperates with the first claw pole 270 and the second claw pole 280, so that the magnetic field is more concentrated on the first winding unit 13, thereby realizing stronger rotation performance in a limited space.

[0077] It can be understood that the polarities of the first claw pole 270 and the second claw pole 280 should be opposite. Please continue to refer to Figure 11 For example, when the polarities of the two first claw poles 270 are N poles, the polarities of the two second claw poles 280 should be S poles; when the polarities of the two first claw poles 270 are S poles, the polarities of the two second claw poles 280 should be N poles. At this time, taking the plane where the two first claw poles 270 are located as the first plane, and taking the plane where the two second claw poles 280 are located as the second plane, it should be ensured that the first plane is perpendicular to the second plane, that is, the angle between the first plane where the two first claw poles 270 are located and the second plane where the two second claw poles 280 are located is preferably 90 degrees.

[0078] In an optional embodiment I, please refer to Figure 5 For the perspective assembly view of the vibration assembly 30 provided in the hybrid motor of the embodiment I of the present application, the vibration assembly 30 provided in the present application includes the coil framework 31, and the first coil 32 and the second coil 33 arranged around the outer wall of the coil framework 31. The current directions of the first coil 32 and the second coil 33 are opposite, which can ensure that the directions of the Lorentz forces received by the first coil 32 and the second coil 33 in the same magnetic field are the same, so that the vibration assembly 30 as a whole can obtain stronger resultant Ampere force, and the outer edges of the first elastic support 34 and the second elastic support 35 are respectively fixed to the axial ends of the coil framework 31.

[0079] Please refer to Figure 14 and Figure 15 , Figure 14 For the side view of the shell 40 provided in the hybrid motor of the embodiment I of the present application, Figure 15 For Figure 14The cross-sectional view of the hybrid motor along the AA direction shows that under the excitation shown, the current directions of the first coil 32 and the second coil 33 are opposite. At this time, the direction of the resultant Ampere force F of the vibration component 30 is upward. When the first coil 32 and the second coil 33 are energized with reverse current (at this time, the current directions of the first coil 32 and the second coil 33 are still opposite), the direction of the resultant Ampere force F of the vibration component 30 will be downward. Therefore, when the first coil 32 and the second coil 33 are periodically energized, the vibration component 30 will be periodically subjected to upward and downward Ampere forces. This Ampere force, as an excitation source, will drive the vibration component 30, the first elastic support 34, the second elastic support 35, and the stator assembly 20 to vibrate in the axial direction, thereby improving its vibration performance while maintaining the miniaturization of the hybrid motor.

[0080] As an optional implementation method, please refer to Figure 8 This is a schematic diagram of the structure of the first winding unit and the shaft in the hybrid motor provided in Embodiment 1 of this application. The rotor assembly 10 provided in this application also includes a rotor core 15 fixedly sleeved on the shaft 11. The shaft 11 is used as the rotation center axis of the rotor core 15, and the fixed sleeved position can prevent the rotor core 15 from radial displacement or shaking when rotating at high speed, thus ensuring the smooth operation of the motor.

[0081] Furthermore, the rotor core 15 is provided with multiple winding teeth 151. At this time, the first winding unit 13 can be configured as multiple third coils 131 wound on multiple winding teeth 151. The winding teeth 151 provide physical support for the third coils 131 to prevent the third coils 131 from loosening during rotation.

[0082] Please refer to Figure 18 The figure shows a specific embodiment of the rotor core 15 in a hybrid motor provided in another embodiment of this application. The rotor core 15 can be set as a multi-layered core to reduce eddy current losses.

[0083] Please refer to Figure 17 This is a schematic diagram of the structure of the hollow cup coil 132 in a hybrid motor provided in another embodiment of this application. That is, the rotor core 15 can be omitted, and the first winding unit 13 can be directly set as a hollow cup coil 132. The hollow cup coil 132 is sleeved on the outer periphery of the rotating shaft 11. Since the hollow cup coil 132 is usually formed by directly winding the wire to form a cup-shaped structure, directly sleeved on the outer periphery of the rotating shaft 11 can eliminate the hysteresis and eddy current loss of the traditional iron core winding.

[0084] Furthermore, the hollow cup coil 132 typically does not contain an iron core and is relatively lightweight, thus enabling rapid start and stop, making it more suitable for scenarios requiring high-frequency start and stop.

[0085] Please refer to Figure 19 , the specific embodiment of the magnetic assembly 24 provided in another embodiment of the application, that is, the magnetic units 25 provided in the application can be used in a stacked manner, and specifically, any number of magnetic units 25 are coaxially stacked to form the magnetic assembly 24 based on the magnetic unit 25 including the first magnetic steel 26, the first iron core 27, and the second iron core 28, so as to achieve the desired vibration effect.

[0086] Please refer to Figure 9 , the structure diagram of the commutating device and the rotating shaft in the hybrid motor provided in the first embodiment of the application, the commutating device 14 provided in the application includes the first bracket 141 sleeved on the rotating shaft 11, and the commutator 142 arranged on the outer peripheral wall of the first bracket 141.

[0087] Preferably, the first bracket 141 and the commutator 142 are arranged on the rotating shaft 11 away from one end of the eccentric wheel 12, and the first brush 16 and the second brush 17 are arranged to clamp and electrically connect the commutator 142, and the mechanical commutation is realized through the first brush 16, the second brush 17, and the commutator 142, so as to drive the rotor assembly 10 to rotate relative to the stator assembly 20.

[0088] It can be understood that the commutator 142 is the core of mechanical commutation, and one end of the first brush 16 and the second brush 17 is connected to an external power supply, and the other end of the first brush 16 and the second brush 17 is kept in sliding contact with the rotating commutator 142, so that when the first brush 16 and the second brush 17 are connected to power supplies of different phases (or different polarities) respectively, the change of the current direction is realized through the alternating contact with different commutator segments 143 of the commutator 142.

[0089] Preferably, the included angle between the first brush 16 and the second brush 17 is 90 degrees.

[0090] Please continue to refer to Figure 8 , in this embodiment, the number of the third coils 131 is three and they are uniformly distributed at an interval of 120 degrees, and when the rotor assembly 10 rotates, the commutator 142 also rotates, at which time the first brush 16 and the second brush 17 alternately contact different-phase commutator segments 143 in the commutator 142, so that the external current is sequentially passed into the three third coils 131, thereby realizing the periodic switching of three-phase current, that is, three-phase mechanical commutation.

[0091] In one embodiment, the magnetizing direction is defined as the extension direction from the second core 28 to the first core 27. The first core 27 and the second core 28 are arranged above and below the first magnetic steel 26, respectively. The first claw pole 270 arranged on the first core 27 is staggered by 90 degrees with the second claw pole 280 arranged on the second core 28, so as to realize the alternating distribution of N-pole and S-pole.

[0092] Please refer to Figure 12 The working principle of the rotor assembly 10 provided in the hybrid motor of the embodiment one will be explained as follows.

[0093] For example, the first winding unit 13 is provided with three third coils 131, which are uniformly distributed by 120 degrees. The three-phase coils can be formed by using the delta connection method. The input signal of the three-phase coils is a direct current signal. The mechanical commutation is realized by the first brush 16, the second brush 17 and the commutator 142.

[0094] For the convenience of explanation, please refer to Figure 13 The three-phase voltage signal example diagram provided by the rotor assembly 10 is shown in Figure 12 The three phases of the three-phase coils, i.e. the three third coils 131, are named as A, B and C, respectively.

[0095] Specifically, please refer to the figure (a) in Figure 12 It can be observed that at 0~T / 6, the A phase is connected to the positive electricity, and the B phase and the C phase are connected to the negative electricity. The excitation mode of the first winding unit 13 and the magnetic assembly 24 is shown in the figure. At this time, the torque of the rotor assembly 10 is along the clockwise direction, and the rotor assembly 10 rotates relative to the stator assembly 20 in the clockwise direction.

[0096] Please refer to the figure (b) in Figure 12 It can be observed that at T / 6, the first commutation is performed. The A phase and the B phase are connected to the positive electricity, and the C phase is connected to the negative electricity. The excitation mode of the first winding unit 13 and the magnetic assembly 24 is shown in the figure. At this time, the torque of the rotor assembly 10 is still along the clockwise direction, and the rotor assembly 10 rotates relative to the stator assembly 20 in the clockwise direction.

[0097] Please refer to the figure (c) in Figure 12 It can be observed that at T / 3, the second commutation is performed. The B phase is connected to the positive electricity, and the A phase and the C phase are connected to the negative electricity. The excitation mode of the first winding unit 13 and the magnetic assembly 24 is shown in the figure. At this time, the torque of the rotor assembly 10 is still along the clockwise direction, and the rotor assembly 10 rotates relative to the stator assembly 20 in the clockwise direction.

[0098] Please refer to the figure (c) in Figure 12In the figure (d) of the drawing, it can be observed that at the time of T / 2, the third commutation is carried out, the B phase and the C phase are in positive electricity, the A phase is in negative electricity, the excitation mode of the first winding unit 13 and the magnetic assembly 24 is as shown in the figure, at this time, the torque of the rotor assembly 10 is still in the clockwise direction, and the rotor assembly 10 rotates relative to the stator assembly 20 in the clockwise direction.

[0099] Please refer to the figure (e) of the drawing, Figure 12 In the figure (e) of the drawing, it can be observed that at the time of 2T / 3, the fourth commutation is carried out, the C phase is in positive electricity, the A phase and the B phase are in negative electricity, the excitation mode of the first winding unit 13 and the magnetic assembly 24 is as shown in the figure, at this time, the torque of the rotor assembly 10 is still in the clockwise direction, and the rotor assembly 10 rotates relative to the stator assembly 20 in the clockwise direction.

[0100] Please refer to the figure (f) of the drawing, Figure 2 In the figure (f) of the drawing, it can be observed that at the time of 5T / 6, the fifth commutation is carried out, the A phase and the C phase are in positive electricity, the B phase is in negative electricity, the excitation mode of the first winding unit 13 and the magnetic assembly 24 is as shown in the figure, at this time, the torque of the rotor assembly 10 is still in the clockwise direction, and the rotor assembly 10 rotates relative to the stator assembly 20 in the clockwise direction.

[0101] In this way, the mechanical commutation of the three-phase coil is realized through the first brush 16, the second brush 17 and the commutator 142, so that the rotor assembly 10 rotates relative to the stator assembly 20 in the clockwise direction, thereby realizing the rotation of the rotor assembly 10 inside the shell 40.

[0102] The first winding unit 13 of the embodiment one is provided with three third coils 131, the first core 27 is provided with two first claw poles 270, and the second core 28 is provided with two second claw poles 280, at this time, the pole-slot ratio relationship is 4-pole 3-slot.

[0103] In other embodiments, the number of the third coils 131 in the first winding unit 13, the number of the first claw poles 270 and the number of the second claw poles 280 can be adaptively adjusted according to actual needs, for example, the pole-slot ratio relationships of 2-pole 3-slot and 4-pole 6-slot are both feasible.

[0104] It should be noted that when the number of the third coils 131, the first claw poles 270 and the second claw poles 280 is adaptively adjusted, the pole-slot relationship of the inter-phase magnetic circuit should satisfy Nr=m(nP±1 / 2)Nl=mP, and the pole-slot relationship of the inter-phase magnetic circuit should satisfy Nr=m[P(n±1 / 2)±1 / 2]Nl; wherein, Nr is the pole number, Nl is the slot number, P is the phase number, m and n are integers, and after satisfying the above relationship, different performance requirements can be realized according to different pole-slot ratios, which should be known by those skilled in the art.

[0105] Further, the mechanical commutation between the commutator 142, the first brush 16 and the second brush 17 can also be replaced by electronic commutation, such as replacing the brush type with the brushless type, thereby saving the space inside the housing 40. In addition, a position sensor can be added to the commutator 142, the first brush 16 or the second brush 17 according to actual needs, so as to monitor the current mechanical commutation state.

[0106] Preferably, a wire slot 311 is arranged on the side wall of the coil former 31, the first coil 32 and the second coil 33 are connected in series and supplied with alternating current, and the plurality of third coils 131 in the first winding unit 13 are supplied with direct current. In other words, the current input signals between the rotor assembly 10 and the vibration assembly 30 should be independent of each other, so as to ensure that the signal input between the rotational movement of the rotor assembly 10 and the axial movement of the vibration assembly 30 is independent of each other and does not interfere with each other.

[0107] Please refer to Figure 6 The housing 40 of the hybrid motor provided in Embodiment One of the present application is preferably arranged in a cylindrical structure. As can be observed, the housing 40 comprises a first housing 41 with two open ends, and a top cover 42 and a bottom cover 43 fixed to the opposite ends of the first housing 41 and the second housing 44. At this time, the first housing 41, the top cover 42 and the bottom cover 43 jointly form the required accommodation space 401.

[0108] Further, the housing 40 further comprises a second housing 44 with two open ends and arranged on the end of the bottom cover 43 close to the top cover 42. At this time, the second housing 44, the bottom cover 43, the stator assembly 20 and the rotor assembly 10 jointly form a second accommodation space 402.

[0109] On this basis, the first brush 16 and the second brush 17 are accommodated in the second accommodation space 402, one end of the first brush 16 and the second brush 17 is fixed to the bottom cover 43, and the other end of the first brush 16 and the second brush 17 is clamped to the outer side wall of the commutator 142.

[0110] Since the first brush 16, the second brush 17 and the commutator 142 are the core components for realizing mechanical commutation, they are easily affected by environmental interference or self-wear during use. Therefore, the first brush 16 and the second brush 17 are accommodated in the second accommodation space 402, so as to avoid the phenomenon of poor contact caused by impurities adhering to the first brush 16 and the second brush 17.

[0111] As an optional embodiment, please refer to Figure 3In the first embodiment, the two support skeletons 21 correspond to the first skeleton 22 covering the end of the first iron core 27 away from the first magnetic steel 26 and the second skeleton 23 covering the end of the second iron core 28 away from the first magnetic steel 26.

[0112] Specifically, the first skeleton 22 covers the end of the first iron core 27 away from the first magnetic steel 26, the first protruding part 221 is arranged in the direction away from the first magnetic steel 26, the first connecting part 421 is arranged at the position corresponding to the first protruding part 221 on the top cover 42, and the rotating shaft 11 passes through the first connecting part 421 and the first protruding part 221 in sequence.

[0113] Correspondingly, the second skeleton 23 covers the end of the second iron core 28 away from the first magnetic steel 26, the second protruding part 231 is arranged in the direction away from the first magnetic steel 26, the second connecting part 441 is arranged at the position corresponding to the second protruding part 231 on the second shell 44, and the rotating shaft 11 passes through the second protruding part 231 and the second connecting part 441 in sequence.

[0114] Further, the first connecting part 421 is arranged on the side of the top cover 42 close to the first protruding part 221, corresponding to the first protruding part 221, the second connecting part 441 is arranged at the position of the second shell 44 close to the second protruding part 231, corresponding to the second protruding part 231, and the rotating shaft 11 passes through the first connecting part 421 of the top cover 42, the first protruding part 221 of the first skeleton 22, the second protruding part 231 of the second skeleton 23, and the second connecting part 441 of the second shell 44 in sequence, so as to elastically suspend the vibration assembly 30 inside the shell 40.

[0115] Please continue to refer to Figure 7 It can be observed that the first protruding part 221 is inserted into the first connecting part 421 after passing through the inner edge of the first elastic support 34, the second protruding part 231 is inserted into the second connecting part 441 after passing through the inner edge of the second elastic support 35, the first protruding part 221 and the second protruding part 231 provide accurate installation reference for the first elastic support 34 and the second elastic support 35, ensuring the stability of the position in the axial and radial directions, and avoiding the position deviation caused by vibration or assembly error.

[0116] At the same time, the first elastic support 34 and the second elastic support 35 are tightly coupled with the top cover 42 and the bottom cover 43 through the insertion and cooperation between the first protruding part 221, the first connecting part 421, the second protruding part 231 and the second connecting part 441, so as to ensure that the axial force generated by the vibration assembly 30 is evenly dispersed to the shell 40 through the first elastic support 34 and the second elastic support 35, improving the stability and controllability of the mixed motor vibration feeling.

[0117] Exemplarily, the first elastic support 34 and the second elastic support 35 can be arranged in the form of an elastic sheet, and a plurality of annular hollow grooves 36 can be arranged on the elastic sheet. Since the elastic sheet itself has good elastic deformation capability, the arrangement of the hollow grooves 36 can further adjust the elastic capability of the elastic sheet. Meanwhile, the hollow grooves 36 can reduce the weight of the elastic sheet to some extent, and enhance the delicate degree of realizing the vibration feeling.

[0118] Further, in order to make the rotating action of the rotor assembly 10 more smooth, and to buffer the vibration of the stator assembly 20 and the vibration assembly 30 in the axial direction, the first bearing 111 is arranged between the rotating shaft 11 and the first protruding part 221, the shaft sleeve 112 is arranged between the first bearing 111 and the annular core, and the first gasket 113 is arranged between the first bearing 111 and the shaft sleeve 112.

[0119] Please continue to refer to Figure 10 The second bearing 114 is arranged between the rotating shaft 11 and the second connecting part 441, and the second gasket 115 is arranged between the second bearing 114 and the commutator 142. By arranging the first gasket 113 and the second gasket 115, the vibration assembly 30 and the stator assembly 20 are prevented from moving in the shell 40 with a large amplitude, and the smoothness of the rotation of the rotor assembly 10 is improved.

[0120] Preferably, please refer to Figure 16 For the structure diagram of the commutating device and the second shell in the hybrid motor provided in the first embodiment of the application, the first boss 431 and the second boss 432 are arranged on the bottom cover 43 close to one end of the commutator 142, and the first brush 16 and the second brush 17 are respectively fixed on the first boss 431 and the second boss 432 away from one end of the commutator 142.

[0121] In the first embodiment of the application, the shell 40, the first core 27 and the second core 28 can be arranged as a strong magnetic conductive material according to requirements.

[0122] Further, the first magnetic steel 26 can be arranged in the form of a sintered neodymium iron boron magnetic steel according to requirements. The above arrangement is feasible, and is not limited here.

[0123] Please refer to ​The schematic diagram of the first main magnetic circuit M1 and the second main magnetic circuit M2 in the hybrid motor provided in Embodiment One of the present application can be observed to form the first main magnetic circuit M1 between the first coil 32, the second coil 33, the first iron core 27 and the second iron core 28, which is an external axial vibration system magnetic circuit, and the first main magnetic circuit M1 realizes the characteristics of high frequency response and strong vibration feeling; the second main magnetic circuit M2 is formed between the first iron core 27, the second iron core 28, the rotor iron core 15 and the third coil 131, which is understood as an internal rotating system magnetic circuit, and the second main magnetic circuit M2 improves the low frequency vibration experience of the motor, and the magnetic assembly 24 is shared between the first main magnetic circuit M1 and the second main magnetic circuit M2, thereby realizing the magnetic circuit fusion of the external axial vibration system and the internal rotating system.

[0124] It can be understood that any combination of the technical features of the above embodiments can be made, and in order to make the description simple, all possible combinations of the technical features in the above embodiments are not described, however, as long as the combination of the technical features does not exist contradictory, it should be considered as the scope of the present application.

[0125] The above embodiments are merely exemplary embodiments adopted for illustrating the principles of the present application, however, the present application is not limited thereto. Various modifications and improvements can be made by those skilled in the art without departing from the spirit and essence of the present application, and these modifications and improvements are also considered as the protection scope of the present application.

Claims

1. A hybrid motor, comprising: a housing having a receiving space, a rotor assembly received in the receiving space, and a stator assembly; the rotor assembly comprising a rotating shaft, an eccentric wheel sequentially sleeved on the rotating shaft along an axial direction of the rotating shaft and rotating with the rotating shaft, a first winding unit, and a commutating device, the eccentric wheel being fixed to one end of the rotating shaft, and the commutating device being fixed to the other end of the rotating shaft away from the eccentric wheel; the stator assembly comprising a magnetic assembly radially spaced from an outer circumferential side of the rotor assembly, and two support skeletons respectively arranged at axial two ends of the magnetic assembly, the two support skeletons being respectively fixed to the housing; the rotor assembly being rotationally connected to the housing and the two support skeletons, and the first winding unit being configured to interact with the magnetic assembly to rotate the rotor assembly; characterized in that the hybrid motor further comprises a vibration assembly received in the receiving space and radially spaced from an outer circumferential side of the stator assembly, and a first elastic support and a second elastic support respectively fixed to axial two ends of the vibration assembly, the vibration assembly being configured to interact with the magnetic assembly to vibrate the vibration assembly along the axial direction of the rotating shaft; inner circumferential edges of the first elastic support and the second elastic support are respectively fixed to the two support skeletons, and outer circumferential edges of the first elastic support and the second elastic support are respectively fixed to the axial two ends of the vibration assembly, so as to elastically suspend the vibration assembly inside the housing; and the vibration assembly comprises a coil skeleton, and a first coil and a second coil arranged around an outer sidewall of the coil skeleton, the first coil and the second coil having opposite current directions, and outer circumferential edges of the first elastic support and the second elastic support being respectively fixed to axial two ends of the coil skeleton.

2. The hybrid motor of claim 1, wherein The magnetic assembly comprises at least one magnetic unit, the magnetic unit comprising a first magnetic steel, and a first iron core and a second iron core coaxially arranged and respectively abutting axial two ends of the first magnetic steel.

3. The hybrid motor of claim 2, wherein, An inner sidewall of the first iron core is uniformly and inwardly spaced to extend to provide at least two first claw poles, an inner sidewall of the second iron core is uniformly and inwardly spaced to extend to provide at least two second claw poles, the first claw poles and the second claw poles have the same number, and all the first claw poles and all the second claw poles are uniformly and inwardly spaced to project onto a plane perpendicular to the rotating shaft and do not overlap each other.

4. The hybrid motor of claim 3, wherein The first claw pole comprises a first claw pole body extending from the inner sidewall of the first iron core toward the rotor assembly, and a first claw pole extension extending from the first claw pole body toward the first magnetic steel, and the second claw pole comprises a second claw pole body extending from the inner sidewall of the second iron core toward the rotor assembly, and a second claw pole extension extending from the second claw pole body toward the first magnetic steel, a thickness of the first claw pole extension and the second claw pole extension along the axial direction of the rotating shaft is less than an axial thickness of the first magnetic steel.

5. The hybrid motor of claim 2, wherein, The first magnetic steel is magnetized along the axial direction of the rotating shaft.

6. The hybrid motor of claim 1, wherein The rotor assembly further comprises a rotor core sleeved and fixed to the rotating shaft, the rotor core comprising a plurality of winding teeth, and the first winding unit comprising a plurality of third coils wound on the winding teeth.

7. The hybrid motor of claim 6, wherein, The rotor core is a multi-layer core stack.

8. The hybrid motor of claim 1, wherein, The first winding unit is a hollow cup coil sleeved on the outer circumferential side of the rotating shaft.

9. The hybrid motor of claim 2, wherein, The commutating device comprises a first bracket sleeved on the rotating shaft and a commutator arranged on the outer circumferential wall of the first bracket.

10. The hybrid motor of claim 9, wherein, The shell comprises a first shell with both ends open, a top cover and a bottom cover fixed to opposite ends of the first shell; the first shell, the top cover and the bottom cover jointly enclose the accommodation space. The shell further comprises a second shell with both ends open and covered on one end of the bottom cover close to the top cover, and the second shell, the bottom cover, the stator assembly and the rotor assembly jointly enclose a second accommodation space.

11. The hybrid motor of claim 10, wherein, The hybrid motor further comprises a first brush and a second brush accommodated in the second accommodation space and fixed to one end of the bottom cover and clamped to the outer lateral wall of the commutator, and the included angle between the first brush and the second brush is 90 degrees.

12. The hybrid motor of claim 10, wherein, The two support skeletons comprise a first skeleton covered on one end of the first core away from the first magnetic steel and a second skeleton covered on one end of the second core away from the first magnetic steel; The first skeleton is provided with a first protruding portion in the direction away from the first magnetic steel, the second skeleton is provided with a second protruding portion in the direction away from the first magnetic steel, the top cover and the second shell are respectively provided with a first connecting portion and a second connecting portion at positions corresponding to the first protruding portion and the second protruding portion, and the rotating shaft penetrates the first connecting portion, the first protruding portion, the second protruding portion and the second connecting portion in sequence.

13. The hybrid motor of claim 12, wherein, The first protruding portion is inserted and arranged in the first connecting portion after penetrating the inner circumferential edge of the first elastic bracket, and the second protruding portion is inserted and arranged in the second connecting portion after penetrating the inner circumferential edge of the second elastic bracket.

14. The hybrid motor of claim 12, wherein, A first bearing is clamped between the rotating shaft and the first protruding portion, a shaft sleeve is arranged between the first bearing and the first winding unit, and a first gasket is arranged between the first bearing and the shaft sleeve.

15. The hybrid motor of claim 12, wherein, A second bearing is clamped between the rotating shaft and the second connecting portion, and a second gasket is arranged between the second bearing and the commutator.

16. The hybrid motor of claim 11, wherein, The bottom cover is provided with a first boss and a second boss, and one end of the first brush and the second brush away from the commutator is respectively fixed to the first boss and the second boss.

17. The hybrid motor of claim 2, wherein The first magnetic steel is a sintered neodymium iron boron magnetic steel.

18. The hybrid motor of claim 2, wherein, The shell, the first core and the second core are all strong magnetic conductive materials.

19. The hybrid motor of any one of claims 1-18, wherein, The current input signals between the rotor assembly and the vibration assembly are independent of each other.

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