Axial flux motor, system and vehicle

Abstract

The invention provides an axial magnetic flux motor, a system and a vehicle, and relates to the technical field of driving motors, the axial magnetic flux motor comprises a shell, and a stator assembly, a rotating shaft assembly and a clutch assembly which are arranged in the shell; the stator assembly is fixedly connected with the shell, a first mounting space is formed in the stator assembly, and the clutch assembly is arranged in the first mounting space; one end of the rotating shaft assembly is connected with the clutch assembly, and the other end of the rotating shaft assembly extends out of the shell from the first mounting space; the clutch assembly comprises a first clutch unit and a second clutch unit which are oppositely arranged. The rotating shaft assembly comprises a first rotating shaft and a second rotating shaft. According to the axis magnetic flux motor provided by the invention, single-side output, double-side series output or double-side decoupling output can be selected according to actual requirements, and multi-working-condition application requirements are met.

Description

Technical Field

[0001] The present application relates to the technical field of drive motors, and particularly to an axial flux motor, a system, and a vehicle. Background Art

[0002] As an indispensable power source in modern industry and daily life, drive motors play an important role in improving the operating efficiency and reliability of equipment. At present, most drive motors mainly output unidirectionally and can only meet the needs of driving a single load. However, this configuration has significant limitations in practical applications. For example, when the actual load is large, the motor is prone to overheating of the winding due to overload, and in severe cases, it may even be damaged or burned out; when the actual load is small, the operating efficiency of the motor is low, resulting in energy waste. In addition, the output mode of traditional motors is single and cannot achieve efficient matching in a multi-load environment.

[0003] Therefore, there is an urgent need for a new motor design scheme to improve the multi-scenario adaptation ability and application value of the motor. Summary of the Invention

[0004] In view of the above problems, embodiments of the present application provide an axial flux motor, a system, and a vehicle to overcome or at least partially solve the above problems.

[0005] In a first aspect of the present application, an axial flux motor is provided, including: a housing, and a stator assembly, a rotating shaft assembly, and a clutch assembly disposed inside the housing; The stator assembly is fixedly connected to the housing, a first installation space is provided on the stator assembly, and the clutch assembly is disposed in the first installation space; One end of the rotating shaft assembly is connected to the clutch assembly, and the other end of the rotating shaft assembly extends out of the housing from the first installation space; The clutch assembly includes a first clutch unit and a second clutch unit disposed opposite to each other, and the rotating shaft assembly includes a first rotating shaft and a second rotating shaft; When the first clutch unit is energized, the second clutch unit moves from a first position to a second position in a first direction relative to the first clutch unit; when the first clutch unit is de-energized, the second clutch unit moves from the second position to the first position in the first direction relative to the first clutch unit. In the first position, the first clutch unit is separated from the second clutch unit, and in the second position, the first clutch unit abuts against the second clutch unit. The first direction is the axial direction of the first rotating shaft or the second rotating shaft.

[0006] Optionally, the first clutch unit includes: a coil, a yoke, and a first plate body; The yoke is fixedly connected to the stator assembly, and the first plate body can rotate relative to the yoke; A second installation space and a third installation space are formed between the yoke and the first plate body. A bearing is arranged in the second installation space. The outer ring surface of the bearing abuts against the yoke, and the inner ring surface of the bearing abuts against the first plate body; The coil is arranged in the third installation space.

[0007] Optionally, the second clutch unit includes: an armature and a second plate body; The armature is fixedly connected to the second plate body; When the coil is energized, the first plate body generates an attractive force on the armature, so that the second clutch unit moves relative to the first clutch unit from the first position to the second position; When the coil is de-energized, the armature moves in a direction away from the first plate body, so that the second clutch unit moves relative to the first clutch unit from the second position to the first position.

[0008] Optionally, the stator assembly includes: a first connecting tooth portion, a second connecting tooth portion, a first winding, a second winding, and a stator core; The stator core is fixedly connected to the housing. The first connecting tooth portion and the second connecting tooth portion are respectively arranged on both sides of the stator core. The first winding is wound around the first connecting tooth portion, and the second winding is wound around the second connecting tooth portion.

[0009] Optionally, it further includes: a control assembly; The control assembly includes: a control unit, a first switch, and a second switch; The control unit is used to control the on-off of the first switch and the second switch; The first switch is respectively connected to the first winding and the second winding, and the second switch is connected to the coil; When the first switch is closed, the first winding and the second winding are connected in series; When the first switch is opened, the first winding and the second winding are connected in parallel.

[0010] Optionally, a first through hole is arranged on the stator core, and a second through hole is arranged on the housing. The first through hole and the second through hole are correspondingly arranged along the axial direction of the stator core; The wire of the coil passes through the first through hole and the second through hole and is connected to the second switch.

[0011] Optionally, it further includes: a rotor assembly; The rotor assembly includes: a first rotor and a second rotor. The first rotor and the second rotor are respectively rotatably arranged on both sides of the stator core. The first rotor corresponds to the first connecting tooth portion, and the second rotor corresponds to the second connecting tooth portion; A plurality of first permanent magnets are arranged on the first rotor, and a plurality of second permanent magnets are arranged on the second rotor; The first permanent magnets are annularly and spacedly distributed around the axis of the first rotor, and the second permanent magnets are annularly and spacedly distributed around the axis of the second rotor. The projection surface of the first permanent magnets on the stator core partially overlaps with the projection surface of the first winding on the stator core, and the projection surface of the second permanent magnets on the stator core partially overlaps with the projection surface of the second winding on the stator core.

[0012] Optionally, in the case of a unilateral light load, the second switch is turned off to move the second clutch unit from the second position to the first position relative to the first clutch unit, and the first switch is turned off to parallel the first winding and the second winding. The first winding is energized to drive the first rotating shaft to rotate or the second winding is energized to drive the second rotating shaft to rotate; In the case of a bilateral load, the second switch is turned off to move the second clutch unit from the second position to the first position relative to the first clutch unit, and the first switch is turned off to parallel the first winding and the second winding. The first winding is energized to drive the first rotating shaft to rotate, and the second winding is energized to drive the second rotating shaft to rotate.

[0013] Optionally, in the case of a unilateral medium load, the second switch is turned off to move the second clutch unit from the second position to the first position relative to the first clutch unit, and the first switch is closed to series-connect the first winding and the second winding. The first winding and the second winding are energized in series to drive the first rotating shaft and the second rotating shaft to rotate respectively; In the case of a unilateral heavy load, the second switch is closed to move the second clutch unit from the first position to the second position relative to the first clutch unit, and the first switch is closed to series-connect the first winding and the second winding. The first winding and the second winding are energized in series to jointly drive the first rotating shaft and the second rotating shaft to rotate.

[0014] In the second aspect of the present application, a motor system is provided. The system includes the axial flux motor as described in the first aspect of the present application, as well as an extended-range engine, a clutch, and a reducer; The axial flux motor is connected to the range extender engine through the clutch, and the axial flux motor is connected to the vehicle wheels through the reducer.

[0015] In a third aspect of the present application, a vehicle is provided, which includes the axial flux motor as described in the first aspect of the present application, and / or includes the motor system as described in the second aspect of the present application.

[0016] Advantages of the present application: The present application provides an axial flux motor, including: a housing, and a stator assembly, a rotating shaft assembly, and a clutch assembly disposed inside the housing; the stator assembly is fixedly connected to the housing, a first installation space is provided on the stator assembly, and the clutch assembly is disposed in the first installation space; one end of the rotating shaft assembly is connected to the clutch assembly, and the other end of the rotating shaft assembly extends out of the housing from the first installation space; the clutch assembly includes a first clutch unit and a second clutch unit arranged oppositely, and the rotating shaft assembly includes a first rotating shaft and a second rotating shaft; when the first clutch unit is energized, the second clutch unit moves from a first position to a second position in a first direction relative to the first clutch unit; when the first clutch unit is de-energized, the second clutch unit moves from the second position to the first position in the first direction relative to the first clutch unit. In the first position, the first clutch unit is separated from the second clutch unit, and in the second position, the first clutch unit abuts against the second clutch unit. The first direction is the axial direction of the first rotating shaft or the second rotating shaft.

[0017] The axial flux motor provided in the present application is provided with a first clutch unit and a second clutch unit, and by controlling the energized and de-energized states of the clutch unit, the flexible connection or separation of the first rotating shaft and the second rotating shaft is realized. Specifically, when the first clutch unit is energized, the second clutch unit moves axially relative to the first clutch unit to the engaged position to complete power coupling; when the first clutch unit is de-energized, the second clutch unit moves axially to the separated position to decouple the power, thereby realizing the power transmission between the first rotating shaft and the second rotating shaft. This enables the motor to select single-sided output, double-sided series output or double-sided decoupled output according to actual needs, meeting the application requirements of multiple working conditions. Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments of the present application will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0019] Figure 1 It is a schematic cross-sectional structure diagram of an axial-flux motor provided by an embodiment of the present application; Figure 2 It is a schematic internal structure diagram of an axial-flux motor provided by an embodiment of the present application; Figure 3 It is a schematic plan view of an axial-flux motor provided by an embodiment of the present application; Figure 4 It is a schematic cross-sectional view of an axial-flux motor provided by an embodiment of the present application; Figure 5 It is a schematic view of the whole axial-flux motor provided by an embodiment of the present application; Figure 6 It is a schematic diagram of a motor system provided by an embodiment of the present application.

[0020] Explanation of reference numerals: 10, housing; 20, stator assembly; 30, rotating shaft assembly; 40, clutch assembly; 50, control assembly; 60, rotor assembly; 201, first connecting tooth part; 202, second connecting tooth part; 203, first winding; 204, second winding; 205, stator core; 301, first rotating shaft; 302, second rotating shaft; 401, first clutch unit; 402, second clutch unit; 4011, coil; 4012, yoke; 4013, first plate body; 4021, armature; 4022, second plate body; 501, control unit; 502, first switch; 503, second switch; 601, first rotor; 602, second rotor; 6011, first permanent magnet; 6021, second permanent magnet. Detailed implementation manners

[0021] Hereinafter, exemplary embodiments of the present application will be described in more detail with reference to the accompanying drawings in the embodiments of the present application. Although the exemplary embodiments of the present application are shown in the drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided so that the present application can be more thoroughly understood and the scope of the present application can be completely conveyed to those skilled in the art.

[0022] Based on the above problems, in the first aspect of the embodiments of the present application, an axial-flux motor is provided, as Figure 1 shown, the axial-flux motor includes: a housing 10 and a stator assembly 20, a rotating shaft assembly 30, and a clutch assembly 40 disposed inside the housing 10; The stator assembly 20 is fixedly connected to the housing 10, a first installation space is provided on the stator assembly 20, and the clutch assembly 40 is disposed in the first installation space; One end of the rotating shaft assembly 30 is connected to the clutch assembly 40, and the other end of the rotating shaft assembly 30 extends out of the housing 10 from the first installation space. The clutch assembly 40 includes a first clutch unit 401 and a second clutch unit 402 which are oppositely arranged, and the rotating shaft assembly 30 includes a first rotating shaft 301 and a second rotating shaft 302. When the first clutch unit 401 is energized, the second clutch unit 402 moves from a first position to a second position in a first direction relative to the first clutch unit 401; when the first clutch unit 401 is de-energized, the second clutch unit 402 moves from the second position to the first position in the first direction relative to the first clutch unit 401. In the first position, the first clutch unit 401 is separated from the second clutch unit 402, and in the second position, the first clutch unit 401 abuts against the second clutch unit 402. The first direction is the axial direction of the first rotating shaft 301 or the second rotating shaft 302.

[0023] The axial flux motor provided in this application includes: a housing 10, a stator assembly 20, a rotating shaft assembly 30, and a clutch assembly 40 disposed inside the housing 10.

[0024] Among them, the housing 10 is an external protection component of the entire motor, used to accommodate and fix internal components. The stator assembly 20 is fixedly connected to the inside of the housing 10 and serves as the stationary part of the axial flux motor, playing a role in electromagnetic induction and supporting other components. A first installation space is designed on the stator assembly 20, and this first installation space is used to accommodate the clutch assembly 40, so that the clutch assembly 40 can be closely combined with other components to form a complete power transmission system.

[0025] The clutch assembly 40 is located in the first installation space of the stator assembly 20 and is composed of a first clutch unit 401 and a second clutch unit 402, which are oppositely arranged to achieve flexible power connection and separation functions. One end of the rotating shaft assembly 30 is connected to the clutch assembly 40, and the other end of the rotating shaft assembly 30 extends out of the housing 10 from the first installation space. The rotating shaft assembly 30 includes a first rotating shaft 301 and a second rotating shaft 302, which are respectively used to transmit power to the first wheel and the second wheel. Specifically, the first clutch unit 401 is connected to the first wheel through the first rotating shaft 301, and the second clutch unit 402 is connected to the second wheel through the second rotating shaft 302, ensuring that power can be effectively transmitted from the motor to the wheels to drive the vehicle to run.

[0026] During actual operation, when the first clutch unit 401 is powered on, the second clutch unit 402 will move from the first position to the second position relative to the first clutch unit 401 in the axial direction, i.e., the axial direction of the first rotating shaft 301 or the second rotating shaft 302. At this time, the first clutch unit 401 and the second clutch unit 402 are in contact with each other, forming a power coupling, thereby realizing the power connection between the two rotating shafts, outputting a larger torque, and meeting the requirements of heavy load working conditions.

[0027] Conversely, when the first clutch unit 401 is powered off, the second clutch unit 402 will move back from the second position to the first position relative to the first clutch unit 401 in the axial direction. At this time, the first clutch unit 401 and the second clutch unit 402 are separated, decoupling the first rotating shaft 301 and the second rotating shaft 302, so that the two rotating shafts can independently output power. This design allows for flexible adjustment of the power distribution method under different working conditions, such as single-sided light load output or bilateral independent output, to meet various application requirements.

[0028] The first direction is defined as the axial direction of the first rotating shaft 301 or the second rotating shaft 302. Through the above design, the engagement and separation of the clutch assembly 40 not only achieve the flexibility of power transmission, but also improve the adaptability and efficiency of the entire motor system, providing a reliable technical guarantee for multi-condition power output. The axial flux motor has a compact structure and diverse functions, and is suitable for various complex application scenarios including new energy vehicles.

[0029] In one embodiment, the first clutch unit 401 includes: a coil 4011, a yoke 4012, and a first plate body 4013; The yoke 4012 is fixedly connected to the stator assembly 20, and the first plate body 4013 can rotate relative to the yoke 4012; A second installation space and a third installation space are formed between the yoke 4012 and the first plate body 4013. A bearing is arranged in the second installation space. The outer ring surface of the bearing abuts against the yoke 4012, and the inner ring surface of the bearing abuts against the first plate body 4013; The coil 4011 is arranged in the third installation space.

[0030] Continuing to refer to Figure 1 As shown, the structural design of the first clutch unit 401 has high compactness and functionality, and mainly includes a coil 4011, a yoke 4012, and a first plate body 4013.

[0031] The yoke 4012 is fixedly connected to the stator assembly 20 and is the stationary part of the first clutch unit 401. The first plate body 4013 is designed as a structure that can rotate relative to the yoke 4012 and is used to achieve power transmission and clutch functions. Two installation spaces, namely the second installation space and the third installation space, are formed between the yoke 4012 and the first plate body 4013 for accommodating other key components.

[0032] A bearing is arranged in the second installation space, and this bearing is used to support and reduce the friction force during rotation. The outer ring surface of the bearing abuts against the yoke 4012 to ensure the stability of the bearing and the fixation of the yoke; the inner ring surface of the bearing abuts against the first plate body 4013 to ensure that the first plate body 4013 can rotate smoothly and maintain a reliable power transmission path.

[0033] A coil 4011 is arranged in the third installation space, and the coil is used to generate an electromagnetic field when energized.

[0034] In one embodiment, the second clutch unit 402 includes: an armature 4021 and a second plate body 4022; The armature 4021 is fixedly connected to the second plate body 4022; When the coil 4011 is energized, the first plate body 4013 generates an attraction force on the armature 4021, so that the second clutch unit 402 moves relative to the first clutch unit 401 from the first position to the second position; When the coil 4011 is de-energized, the armature 4021 moves in a direction away from the first plate body 4013, so that the second clutch unit 402 moves relative to the first clutch unit 401 from the second position to the first position.

[0035] In this embodiment, continue to refer to Figure 1 As shown, the design structure of the second clutch unit 402 includes an armature 4021 and a second plate body 4022, and the two jointly realize the dynamic response of the clutch function and the adjustment of power transmission through fixed connection.

[0036] The armature 4021, as a key component in the second clutch unit 402, is fixedly connected to the second plate body 4022 and moves together with the second plate body 4022 when the clutch unit works. When the coil 4011 is energized, the first plate body 4013 generates a magnetic field through electromagnetic action and attracts the armature 4021 to move in a direction close to the first plate body 4013. This attraction makes the second clutch unit 402 move from the first position to the second position, and the first plate body 4013 and the armature 4021 come into contact or closely abut, completing the coupling between the first clutch unit 401 and the second clutch unit 402, thereby realizing power transmission.

[0037] When the coil 4011 is powered off, due to the disappearance of the electromagnetic field, the armature 4021 moves away from the first plate body 4013 under the action of the restoring force, so that the second clutch unit 402 moves from the second position to the first position. In this position, the first plate body 4013 and the armature 4021 are separated, realizing the decoupling of the first clutch unit 401 and the second clutch unit 402, and enabling the power output to be independently distributed.

[0038] This design makes full use of the electromagnetic attraction generated by the coil 4011, and realizes the conversion of the second clutch unit 402 between the first position and the second position through the movement of the armature 4021. Through the combination and separation of the clutch units, this design can flexibly adjust the power transmission path, meet the precise control requirements of power output under multiple working conditions, and ensure the reliability and applicability of the entire system.

[0039] In one embodiment, the stator assembly 20 includes: a first connecting tooth portion 201, a second connecting tooth portion 202, a first winding 203, a second winding 204, and a stator core 205; The stator core 205 is fixedly connected to the housing 10. The first connecting tooth portion 201 and the second connecting tooth portion 202 are respectively arranged on both sides of the stator core 205. The first winding 203 is wound around the first connecting tooth portion 201, and the second winding 204 is wound around the second connecting tooth portion 202.

[0040] In this embodiment, referring to Figure 1 the cross-sectional structure diagram of the axial-flux motor shown and referring to Figure 2 the internal structure diagram of the axial-flux motor shown, the structural design of the stator assembly 20 includes a first connecting tooth portion 201, a second connecting tooth portion 202, a first winding 203, a second winding 204, and a stator core 205. Each component realizes the efficient operation of the motor through a reasonable layout and connection method.

[0041] The stator core 205 is fixedly connected inside the housing 10, providing a stable support structure. The first connecting tooth portion 201 and the second connecting tooth portion 202 are respectively arranged on both sides of the stator core 205, and are used to support and fix the arrangement of the windings.

[0042] The first connecting tooth portion 201 is located on one side of the stator core 205, and the first winding 203 is wound on its surface; the second connecting tooth portion 202 is located on the other side of the stator core 205, and the second winding 204 is wound on its surface. The first winding 203 and the second winding 204 form electromagnetic coils through wire winding methods, and are respectively responsible for generating magnetic fields to drive their corresponding rotor parts. In addition, as Figure 2 shown, the first connecting tooth portion 201 and the second connecting tooth portion 202 are respectively annularly spaced apart on both sides of the stator core 205.

[0043] This structural design makes the stator assembly 20 present a symmetric layout in the axial direction, which is beneficial to the stability and balance of the motor operation. At the same time, by arranging the first connecting tooth part 201 and the second connecting tooth part 202 separately for the first winding 203 and the second winding 204, the electromagnetic interference between different windings can be effectively reduced, and the electromagnetic efficiency and overall performance can be improved.

[0044] In one embodiment, the axial flux motor further includes: a control assembly 50; The control assembly 50 includes: a control unit 501, a first switch 502, and a second switch 503; The control unit 501 is used to control the on and off of the first switch 502 and the second switch 503; The first switch 502 is respectively connected to the first winding 203 and the second winding 204, and the second switch 503 is connected to the coil 4011; When the first switch 502 is closed, the first winding 203 is in series with the second winding 204; When the first switch 502 is open, the first winding 203 is in parallel with the second winding 204.

[0045] In this embodiment, referring to Figure 3 the planar schematic diagram of the axial flux motor shown, the axial flux motor further includes a control assembly 50, and the control assembly 50 includes a control unit 501, a first switch 502, and a second switch 503.

[0046] The control unit 501 is used to control the on and off states of the first switch 502 and the second switch 503. The first switch 502 is respectively connected to the first winding 203 and the second winding 204 and is used to switch the electrical connection mode between the two windings; the second switch 503 is connected to the coil 4011 and is used to control the energization state of the coil 4011, so as to realize the engagement and separation of the clutch unit.

[0047] When the first switch 502 is closed, the first winding 203 is in series with the second winding 204. This configuration is suitable for working conditions that require higher voltage drive, can effectively increase the output magnetic field strength, and thus drive scenarios with higher load requirements. When the first switch 502 is open, the first winding 203 is in parallel with the second winding 204, and this configuration is suitable for low-load scenarios.

[0048] The control state of the second switch 503 directly affects the operation of the coil 4011. When the second switch 503 is closed, the coil 4011 is energized, and the first plate body 4013 of the first clutch unit 401 is attracted to the armature 4021 of the second clutch unit 402, completing the combination of the clutch units, thereby enabling the two rotating shafts to achieve power coupling output. When the second switch 503 is opened, the coil 4011 is de-energized, the clutch units are separated, and the two rotating shafts are decoupled to achieve independent power output.

[0049] Among them, the first switch 502 includes switch S1, switch S2, and switch S3, where switch S1, S2, and S3 are closed synchronously and opened synchronously.

[0050] In one embodiment, a first through hole 2051 is provided on the stator core 205, and a second through hole 2052 is provided on the housing 10. The first through hole 2051 and the second through hole 2052 are correspondingly arranged along the axial direction of the stator core 205. The wire of the coil 4011 passes through the first through hole 2051 and the second through hole 2052 and is connected to the second switch 503.

[0051] Continue to refer to Figure 1 , a through hole structure is designed on the stator core 205 and the housing 10 respectively. Specifically, a first through hole 2051 is provided on the stator core 205, and a second through hole 2052 is provided on the housing 10. The two through holes are correspondingly arranged along the axial direction of the stator core 205 to form a through channel for the wire.

[0052] The wire of the coil 4011 passes through the first through hole 2051 and the second through hole 2052, as Figure 3 shown, extends to the control assembly 50 and is connected to the second switch 503. Through this design, the wire can be safely and stably led out from the coil 4011 and routed through the reserved paths of the stator core 205 and the housing 10, thereby achieving electrical connection with the control assembly 50 and avoiding problems such as interference and loss caused by wire exposure or external wiring.

[0053] In one embodiment, the axial flux motor provided in the present application further includes: a rotor assembly 60; The rotor assembly 60 includes: a first rotor 601 and a second rotor 602. The first rotor 601 and the second rotor 602 are respectively rotatably arranged on both sides of the stator core 205. The first rotor 601 corresponds to the first connection tooth portion 201, and the second rotor 602 corresponds to the second connection tooth portion 202. A plurality of first permanent magnets 6011 are provided on the first rotor 601, and a plurality of second permanent magnets 6021 are provided on the second rotor 602. The first permanent magnets 6011 are distributed at annular intervals around the axis of the first rotor 601, and the second permanent magnets 6021 are distributed at annular intervals around the axis of the second rotor 602. The projection plane of the first permanent magnets 6011 on the stator core 205 partially overlaps with the projection plane of the first winding 203 on the stator core 205, and the projection plane of the second permanent magnets 6021 on the stator core 205 partially overlaps with the projection plane of the second winding 204 on the stator core 205.

[0054] Continue to refer to Figure 2 and Figure 3 As shown in, the axial flux motor provided in this application further includes a rotor assembly 60, which is composed of a first rotor 601 and a second rotor 602. The first rotor 601 and the second rotor 602 are respectively rotatably arranged on both sides of the stator core 205, and are closely matched with the stator assembly 20 to achieve electromagnetic induction and power output.

[0055] The first rotor 601 corresponds to the first connecting tooth portion 201 on the stator core 205, and the second rotor 602 corresponds to the second connecting tooth portion 202 on the stator core 205. A plurality of first permanent magnets 6011 are arranged on the first rotor 601, and a plurality of second permanent magnets 6021 are arranged on the second rotor 602. The first permanent magnets 6011 are distributed at annular intervals around the axis of the first rotor 601, and the second permanent magnets 6021 are also distributed at annular intervals around the axis of the second rotor 602.

[0056] The first permanent magnets 6011 cooperate with the first winding 203 on the stator core 205, and the projection plane of the first permanent magnets 6011 on the stator core 205 partially overlaps with the projection plane of the first winding 203 on the stator core 205. Similarly, the second permanent magnets 6021 cooperate with the second winding 204 on the stator core 205, and the projection plane of the second permanent magnets 6021 on the stator core 205 partially overlaps with the projection plane of the second winding 204 on the stator core 205. This design of partial overlap of the projection planes enables the permanent magnets and the windings to make full use of the space for electromagnetic coupling, thereby improving the energy conversion efficiency and power output performance of the motor.

[0057] In one embodiment, in the case of a single-sided light load, the second switch 503 is turned off, so that the second clutch unit 402 moves from the second position to the first position relative to the first clutch unit 401, and the first switch 502 is turned off, so that the first winding 203 and the second winding 204 are connected in parallel, and the first winding 203 is energized to drive the first rotating shaft 301 to rotate or the second winding 204 is energized to drive the second rotating shaft 302 to rotate; In the case of bilateral loads, the second switch 503 is turned off, so that the second clutch unit 402 moves relative to the first clutch unit 401 from the second position to the first position, and the first switch 502 is turned off, so that the first winding 203 is connected in parallel with the second winding 204. The first winding 203 is energized to drive the rotation of the first rotating shaft 301, and the second winding 204 is energized to drive the rotation of the second rotating shaft 302.

[0058] Continue to refer to Figure 3 , under different load conditions, the axial flux motor realizes flexible power output control by controlling the first switch 502 and the second switch 503 in the control component 50. Specifically, it includes the following two working conditions: In this embodiment, under different load conditions, the axial flux motor realizes flexible power output control by controlling the first switch 502 and the second switch 503 in the control component 50. Specifically, it includes the following two working conditions: Single-sided light load condition: In the case of a single-sided light load, the axial flux motor only needs to drive one side of the rotating shaft to output power. At this time, the second switch 503 is turned off, so that the second clutch unit 402 moves relative to the first clutch unit 401 from the second position to the first position, the first clutch unit 401 is separated from the second clutch unit 402, and the first rotating shaft 301 is decoupled from the second rotating shaft 302.

[0059] At the same time, the first switch 502 is turned off, so that the first winding 203 is connected in parallel with the second winding 204. At this time, the first winding 203 is selectively energized to drive the rotation of the first rotating shaft 301, or the second winding 204 is energized to drive the rotation of the second rotating shaft 302, so as to meet the power requirements of the single-sided light load. Through this operation, only one side needs to output power, which not only effectively reduces energy consumption, but also reduces unnecessary mechanical losses and improves the operating efficiency of the motor.

[0060] Bilateral load condition: In the case of bilateral loads, the axial flux motor needs to drive the two rotating shafts to independently output power at the same time. At this time, the second switch 503 is also turned off, so that the second clutch unit 402 moves relative to the first clutch unit 401 from the second position to the first position, the first clutch unit 401 is separated from the second clutch unit 402, and the first rotating shaft 301 is decoupled from the second rotating shaft 302.

[0061] Meanwhile, the first switch 502 is turned off, causing the first winding 203 and the second winding 204 to be in parallel. In this state, the first winding 203 is energized to drive the first rotating shaft 301 to rotate, and the second winding 204 is energized to drive the second rotating shaft 302 to rotate. By independently energizing the two windings, the power output of the two rotating shafts is controlled respectively, thus meeting the requirements of bilateral loads. This design can not only achieve independent control of the two rotating shafts, but also allow the power output characteristics of the two loads to be adjusted according to actual needs, thereby improving the adaptability and flexibility of the motor.

[0062] In this embodiment, whether it is a single-sided light load condition or a bilateral load condition, the axial flux motor realizes the separation of the clutch unit by turning off the second switch 503, enabling the first rotating shaft 301 and the second rotating shaft 302 to output power independently. At the same time, by turning off the first switch 502, the windings are switched to the parallel state to adapt to the current requirements under different load conditions. This flexible control strategy not only meets the requirements of multi-condition operation, but also optimizes the energy utilization efficiency, providing an efficient and reliable solution for the practical application of the motor.

[0063] In one embodiment, in the case of a single-sided medium load, the second switch 503 is turned off, causing the second clutch unit 402 to move from the second position to the first position relative to the first clutch unit 401, and the first switch 502 is closed, causing the first winding 203 and the second winding 204 to be in series. The first winding 203 and the second winding 204 are energized in series to drive the first rotating shaft 301 and the second rotating shaft 302 to rotate respectively; In the case of a single-sided heavy load, the second switch 503 is closed, causing the second clutch unit 402 to move from the first position to the second position relative to the first clutch unit 401, and the first switch 502 is closed, causing the first winding 203 and the second winding 204 to be in series. The first winding 203 and the second winding 204 are energized in series to drive the first rotating shaft 301 and the second rotating shaft 302 to rotate together.

[0064] Continue to refer to Figure 3, in the case of a single-sided medium load, the axial flux motor needs to moderately increase the output power to meet the requirements of the medium load. At this time, the second switch 503 is disconnected, causing the second clutch unit 402 to move from the second position to the first position relative to the first clutch unit 401. The first clutch unit 401 is separated from the second clutch unit 402, and the first rotating shaft 301 and the second rotating shaft 302 are decoupled. The first switch 502 is closed to connect the first winding 203 and the second winding 204 in series. In this state, the series-connected windings are energized together. Since the magnetic field strength is positively correlated with the number of turns of the energized winding, the magnetic field strength of the two-side windings connected in series under the same current is greater than that of the single-side winding energized. At this time, the output torque is also greater. This series-energization mode enables the first winding 203 to drive the first rotating shaft 301 to rotate, and the second winding 204 to drive the second rotating shaft 302 to rotate. The two rotating shafts can respectively output appropriate power, but the rotating shafts are decoupled and only one side of the rotating shaft is connected to the load to output torque, which is equivalent to the magnetic fields generated by the two-side windings driving the load-side rotor to meet the requirements of the single-sided medium load.

[0065] In the case of a single-sided heavy load, the axial flux motor needs to concentrate and output greater power to drive the heavy load to operate. At this time, the second switch 503 is closed, causing the second clutch unit 402 to move from the first position to the second position relative to the first clutch unit 401. The first clutch unit 401 and the second clutch unit 402 attract and contact each other, and the first rotating shaft 301 and the second rotating shaft 302 are coupled. The first switch 502 is closed to connect the first winding 203 and the second winding 204 in series. At this time, the series-connected windings are energized together to generate a stronger electromagnetic force, and through the coupling of the clutch unit, the power of the two rotating shafts is integrated into one. The first rotating shaft 301 and the second rotating shaft 302 jointly output power, thereby meeting the high-torque requirements of the single-sided heavy load. This power integration mode significantly enhances the load-carrying capacity of the motor by integrating the outputs of the two rotating shafts, and is suitable for working scenarios with large loads and high intensities.

[0066] Under a single-sided medium load, the windings are connected in series and energized, the rotating shafts are decoupled, and the two rotating shafts are respectively driven to output appropriate power to meet the requirements of the medium load; Under a single-sided heavy load, the windings are connected in series and energized, and the rotating shafts are coupled through the clutch unit to jointly output greater power to drive the heavy load.

[0067] In this embodiment, by controlling the on-off states of the second switch 503 and the first switch 502, and adjusting the winding connection method, this design realizes precise adaptation to different load scenarios, effectively improving the operating efficiency and application range of the motor.

[0068] In one embodiment, as Figure 4As shown, the cross-sectional schematic diagram of the axial flux motor shows the specific structures of the first rotating shaft 301 and the second rotating shaft 302 and their connection modes with other components of the motor.

[0069] Spline designs are provided at the output ends of both the first rotating shaft 301 and the second rotating shaft 302. The existence of the splines can effectively achieve a reliable connection between the rotating shaft and the external load, while ensuring the stability and efficiency of power transmission. This design not only improves the torsional resistance of the rotating shaft but also enhances the adaptability of the motor under complex load conditions.

[0070] In addition, at least one bearing is provided on the output end of the second rotating shaft 302 near the housing. The function of this bearing is to provide necessary support for the second rotating shaft 302 and reduce the friction and vibration generated during the high-speed rotation of the rotating shaft, thereby improving the running smoothness of the rotating shaft and the overall reliability of the motor.

[0071] In one embodiment, as Figure 5 shown, is the overall schematic diagram of an axial flux motor proposed in this application.

[0072] The present application provides an axial flux motor, comprising: a housing, and a stator assembly, a rotating shaft assembly, and a clutch assembly disposed inside the housing; the stator assembly is fixedly connected to the housing, a first installation space is provided on the stator assembly, and the clutch assembly is disposed in the first installation space; the clutch assembly includes a first clutch unit and a second clutch unit arranged oppositely, and the rotating shaft assembly includes a first rotating shaft and a second rotating shaft; the first clutch unit is connected to a first wheel through the first rotating shaft, and the second clutch unit is connected to a second wheel through the second rotating shaft; when the first clutch unit is energized, the second clutch unit moves from a first position to a second position in a first direction relative to the first clutch unit; when the first clutch unit is de-energized, the second clutch unit moves from the second position to the first position in the first direction relative to the first clutch unit. In the first position, the first clutch unit is separated from the second clutch unit, and in the second position, the first clutch unit abuts against the second clutch unit. The first direction is the axial direction of the first rotating shaft or the second rotating shaft. The axial flux motor provided by the present application is provided with a first clutch unit and a second clutch unit, and by controlling the energized and de-energized states of the clutch unit, the flexible connection or separation of the first rotating shaft and the second rotating shaft is realized. Specifically, when the first clutch unit is energized, the second clutch unit moves in the axial direction relative to the first clutch unit to a combined position to complete power coupling; when the first clutch unit is de-energized, the second clutch unit moves in the axial direction to a separated position to decouple the power, thereby realizing the power transmission between the first rotating shaft and the second rotating shaft. This enables the motor to select single-sided output, double-sided series output or double-sided decoupled output according to actual needs, meeting the application requirements of multiple working conditions.

[0073] Based on the same inventive concept, in a second aspect of the present application, a motor system is provided, as Figure 2 shown, the system includes the axial flux motor as described in the first aspect of the present application, and a range extender engine, a clutch, and a reducer; the axial flux motor is connected to the range extender engine through the clutch, and the axial flux motor is connected to the wheels of the vehicle through the reducer.

[0074] The motor system provided by the present application integrates an axial flux motor, a range extender engine, a clutch, and a reducer, and realizes efficient power transmission and flexible operation modes through the coordinated work of each component.

[0075] Among them, the axial flux motor is connected to the range extender engine through a clutch. When the range extender mode needs to be enabled, the clutch engages, connecting the range extender engine to the axial flux motor, and the engine can supply energy to the motor or charge the battery; when the range extender mode is turned off, the clutch disengages, and the axial flux motor can operate independently, thus flexibly switching the working mode to meet the requirements of different scenarios.

[0076] The axial flux motor is connected to the vehicle wheels through a speed reducer. The speed reducer plays a role in adjusting the speed and torque, converting the high-speed and low-torque output of the axial flux motor into the low-speed and high-torque power output required by the wheels, thereby improving the driving performance and operating efficiency of the vehicle.

[0077] Based on the same inventive concept, in the third aspect of the present application, a vehicle is provided, which includes the axial flux motor as described in the first aspect of the present application, and / or includes the motor system as described in the second aspect of the present application.

[0078] Each embodiment in this specification focuses on the differences from other embodiments. For the same or similar parts among the embodiments, reference can be made to each other.

[0079] It should be noted that the embodiments in this specification are all described in a progressive manner. Each embodiment focuses on the differences from other embodiments. For the same or similar parts among the embodiments, reference can be made to each other.

[0080] It should also be noted that in this article, the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention. In addition, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations, nor can they be understood as indicating or implying relative importance. Moreover, the term "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or terminal device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or terminal device.

[0081] Although the preferred embodiments of the embodiments of the present application have been described, those skilled in the art can make additional changes and modifications to these embodiments once they learn the basic creative concepts. Therefore, the appended claims are intended to be construed to include the preferred embodiments as well as all changes and modifications that fall within the scope of the embodiments of the present application.

[0082] Finally, it should also be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or terminal device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or terminal device. Without further limitation, an element defined by the statement "comprising a..." does not exclude the presence of additional identical elements in the process, method, article or terminal device comprising the element.

[0083] The above provides a detailed introduction to an axial flux motor, a system, and a vehicle. Specific examples are used in this text to elaborate on the principles and implementation manners of the present application. The description of the above embodiments is only used to help understand the method and its core idea of the present application; at the same time, for those of ordinary skill in the art, according to the idea of the present application, there will be changes in the specific implementation manners and application scopes. In summary, the content of this specification should not be construed as a limitation to the present application.

Claims

1. An axial flux motor, characterized in that: include: A housing and a stator assembly, a rotating shaft assembly, and a clutch assembly disposed inside the housing; The stator assembly is fixedly connected to the housing, a first installation space is provided on the stator assembly, and the clutch assembly is provided in the first installation space; One end of the shaft assembly is connected to the clutch assembly, and the other end of the shaft assembly extends out of the housing from the first installation space; The clutch assembly includes a first clutch unit and a second clutch unit that are arranged opposite to each other, and the shaft assembly includes a first shaft and a second shaft; When the first clutch unit is powered on, the second clutch unit moves from the first position to the second position relative to the first clutch unit in the first direction; when the first clutch unit is powered off, the second clutch unit moves from the second position to the first position relative to the first clutch unit in the first direction, in the first position, the first clutch unit is separated from the second clutch unit, in the second position, the first clutch unit is abutted against the second clutch unit, and the first direction is the axial direction of the first rotating shaft or the second rotating shaft.

2. The axial flux motor according to claim 1, characterized in that: The first clutch unit includes: a coil, a yoke and a first plate; The yoke is fixedly connected to the stator assembly, and the first plate can rotate relative to the yoke; A second installation space and a third installation space are formed between the yoke and the first plate body, a bearing is arranged in the second installation space, an outer ring surface of the bearing abuts against the yoke, and an inner ring surface of the bearing abuts against the first plate body; The coil is arranged in the third installation space.

3. The axial flux motor according to claim 2, characterized in that: The second clutch unit includes: an armature and a second plate; The armature is fixedly connected to the second plate; When the coil is energized, the first plate generates an attractive force on the armature, so that the second clutch unit moves from the first position to the second position relative to the first clutch unit; When the coil is de-energized, the armature moves in a direction away from the first plate body, so that the second clutch unit moves from the second position to the first position relative to the first clutch unit.

4. The axial flux motor according to claim 2, characterized in that: The stator assembly comprises: a first connecting tooth portion, a second connecting tooth portion, a first winding, a second winding and a stator core; The stator core is fixedly connected to the housing, the first connecting tooth portion and the second connecting tooth portion are respectively arranged on both sides of the stator core, the first connecting tooth portion is wound on the first connecting tooth portion, and the second winding is wound on the second connecting tooth portion.

5. The axial flux motor according to claim 4, characterized in that: Also includes: Control components; The control component includes: a control unit, a first switch and a second switch; The control unit is used to control the on and off of the first switch and the second switch; The first switch is connected to the first winding and the second winding respectively, and the second switch is connected to the coil; When the first switch is closed, the first winding is connected in series with the second winding; When the first switch is turned off, the first winding is connected in parallel with the second winding.

6. The axial flux motor according to claim 5, characterized in that: The stator core is provided with a first through hole, and the housing is provided with a second through hole, and the first through hole and the second through hole are correspondingly arranged along the axial direction of the stator core; The conductive wire of the coil passes through the first through hole and the second through hole and is connected to the second switch.

7. The axial flux motor according to claim 4, characterized in that: Also includes: Rotor assembly; The rotor assembly comprises: a first rotor and a second rotor, wherein the first rotor and the second rotor are rotatably disposed on both sides of the stator core, respectively, the first rotor corresponds to the first connecting tooth portion, and the second rotor corresponds to the second connecting tooth portion; The first rotor is provided with a plurality of first permanent magnets, and the second rotor is provided with a plurality of second permanent magnets; The first permanent magnets are distributed in a circular pattern around the axis of the first rotor, and the second permanent magnets are distributed in a circular pattern around the axis of the second rotor. The projection surface of the first permanent magnet on the stator core partially overlaps with the projection surface of the first winding on the stator core, and the projection surface of the second permanent magnet on the stator core partially overlaps with the projection surface of the second winding on the stator core.

8. The axial flux motor according to claim 5, characterized in that: In the case of a single-side light load, the second switch is opened to move the second clutch unit from the second position to the first position relative to the first clutch unit, and the first switch is opened to connect the first winding in parallel with the second winding, and the first winding is energized to drive the first shaft to rotate or the second winding is energized to drive the second shaft to rotate; In the case of double-sided load, the second switch is disconnected so that the second clutch unit moves from the second position to the first position relative to the first clutch unit, and the first switch is disconnected so that the first winding is connected in parallel with the second winding, the first winding is energized to drive the first shaft to rotate, and the second winding is energized to drive the second shaft to rotate.

9. The axial flux motor according to claim 5, characterized in that: In the case of a single-side medium load, the second switch is opened to move the second clutch unit from the second position to the first position relative to the first clutch unit, and the first switch is closed to connect the first winding and the second winding in series, and the first winding and the second winding are energized in series to respectively drive the first shaft and the second shaft to rotate; In the case of a single-sided heavy load, the second switch is closed to move the second clutch unit from the first position to the second position relative to the first clutch unit, the first switch is closed to connect the first winding and the second winding in series, and the first winding and the second winding are energized in series to jointly drive the first rotating shaft and the second rotating shaft to rotate.

10. A motor system, characterized in that: The system comprises an axial flux motor as claimed in any one of claims 1 to 9, and a range extender engine, a clutch, and a reducer; The axial flux motor is connected to the range extender engine through the clutch, and the axial flux motor is connected to the wheels of the vehicle through the reducer.

11. A vehicle, characterized in that: The vehicle comprises an axial flux electric machine as claimed in any one of claims 1 to 9 and / or comprises an electric machine system as claimed in claim 10.

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