Axial flux motor, compressor, thermal management system and vehicle

Abstract

The invention relates to an axial magnetic flux motor, a compressor, a heat management system and a vehicle, the axial magnetic flux motor comprises a motor main body, the motor main body comprises a rotating shaft, at least one rotor, at least one stator and a heat exchange medium channel, the at least one rotor and the at least one stator are arranged in the axial direction of the rotating shaft, and the rotating shaft is connected with the at least one rotor; the heat exchange medium channel is located outside the stator and the rotor, and the stator and / or the rotor can be cooled when the heat exchange medium flows in the heat exchange medium channel. According to the axial magnetic flux motor, the through-flow area of the heat exchange medium channel is allowed to be increased, so that the flow of the heat exchange medium flowing through the heat exchange medium channel can be increased, the heat of the stator and the rotor can be taken away more quickly by using the heat exchange medium with larger flow, and the cooling effect on the stator and / or the rotor can be improved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of motors, and in particular, to an axial flux motor, a compressor, a thermal management system, and a vehicle. Background Art

[0002] The axial flux motor has a relatively high power density, so it will generate a large amount of heat during operation. If the temperature of the axial flux motor is too high, it will affect its performance, reduce the motor efficiency and service life, and may even damage the components of the motor. Therefore, in order to ensure the performance and safe operation of the axial flux motor, effective cooling of the axial flux motor is required. However, the cooling effect during the operation of the axial flux motor in the related art is not ideal. Summary of the Invention

[0003] The purpose of the present disclosure is to provide an axial flux motor, a compressor, a thermal management system, and a vehicle to at least partially solve the technical problems existing in the related art.

[0004] To achieve the above purpose, according to the first aspect of the present disclosure, an axial flux motor is provided, including a motor main body, the motor main body including a rotating shaft, at least one rotor, at least one stator, and a heat exchange medium channel; At least one of the at least one rotor and the at least one stator is arranged along the axial direction of the rotating shaft, and the rotating shaft is connected to at least one of the at least one rotor; The heat exchange medium channel is located outside the stator and the rotor, and can cool the stator and / or the rotor during the process of the heat exchange medium flowing in the heat exchange medium channel.

[0005] Optionally, the motor main body has opposite first and second ends in the axial direction of the rotating shaft, wherein, the inlet of the heat exchange medium channel is located at the first end and / or the outlet of the heat exchange medium channel is located at the second end.

[0006] Optionally, there are a plurality of the heat exchange medium channels, and the plurality of heat exchange medium channels are arranged at intervals along the circumferential direction of the rotating shaft.

[0007] Optionally, the motor main body further includes a housing, the housing including a housing main body, the stator and the rotor being located inside the housing main body, and the heat exchange medium channel including a first channel, the first channel being located between the outer circumferential surface of the stator and / or the outer circumferential surface of the rotor and the inner circumferential surface of the housing main body.

[0008] Optionally, the first channel extends along the axial direction of the rotating shaft.

[0009] Optionally, the housing further includes a plurality of first bosses disposed on the inner circumferential surface of the housing main body, the plurality of first bosses being spaced apart along the circumferential direction of the rotating shaft, and the outer circumferential surface of the stator abuts against the first bosses; Wherein, a first channel with an opening facing the stator and / or the rotor is formed between two adjacent first bosses.

[0010] Optionally, the axial flux motor further includes a first bearing, and the housing further includes a bearing mounting portion connected to one end of the housing main body, and the first bearing is mounted in the bearing mounting portion and sleeved on the rotating shaft.

[0011] Optionally, the axial flux motor further includes a bearing bracket, the bearing bracket is mounted in the bearing mounting portion, and the outer ring of the first bearing is connected to the bearing bracket; The heat exchange medium channel further includes a second channel communicating with the first channel, and the second channel is disposed on the bearing bracket.

[0012] Optionally, a third channel is provided inside the bearing mounting portion, and the third channel communicates with the first channel.

[0013] Optionally, the bearing mounting portion includes an annular main body and a plurality of second bosses disposed on the inner circumferential surface of the annular main body, the plurality of second bosses being spaced apart along the circumferential direction of the rotating shaft, and a third channel is formed between two adjacent second bosses; Wherein, the outer ring of the first bearing abuts against the second boss; or, the axial flux motor further includes a bearing bracket, the outer ring of the first bearing is connected to the bearing bracket, and the outer circumferential surface of the bearing bracket abuts against the second boss.

[0014] Optionally, the rotor includes a rotor disc and permanent magnets disposed on the rotor disc; Wherein, a first groove is provided on the outer circumferential surface of the rotor disc, and the first groove can allow the heat exchange medium to pass through; and / or, a first through hole is provided on the rotor disc, and the first through hole can allow the heat exchange medium to pass through.

[0015] Optionally, the stator includes a stator disc, an iron core disposed on the stator disc, and a coil wound around the iron core; Wherein, a second groove is provided on the outer circumferential surface of the stator disc, and the second groove can allow the heat exchange medium to pass through; and / or, a second through hole is provided on the stator disc, and the second through hole can allow the heat exchange medium to pass through.

[0016] Optionally, there are a plurality of iron cores, and the coil is wound around each iron core, and a second through hole is provided between two adjacent iron cores.

[0017] Optionally, there are multiple rotors, and the multiple rotors include a first rotor, a second rotor, and a third rotor, and the first rotor, the second rotor, and the third rotor are all connected to the rotating shaft; There are multiple stators, and the multiple stators include a first stator and a second stator; The first rotor, the second rotor, and the third rotor are arranged at intervals along the axial direction of the rotating shaft, the first stator is located between the first rotor and the second rotor, and the second stator is located between the second rotor and the third rotor.

[0018] Optionally, the axial flux motor further includes a motor controller connected to the motor body, and the motor controller and the motor body are arranged along the axial direction of the rotating shaft.

[0019] Optionally, the motor controller has a heat exchange medium interface and a heat exchange medium chamber, the heat exchange medium interface is communicated with the heat exchange medium chamber, one end of the heat exchange medium chamber close to the motor body is an open end, the inlet of the heat exchange medium channel is located on one side of the motor body close to the motor controller, and the inlet of the heat exchange medium channel is communicated with the open end.

[0020] Optionally, the motor controller includes a first circuit board and a second circuit board, and the first circuit board and the second circuit board are arranged along the axial direction of the rotating shaft.

[0021] Optionally, the first circuit board is a control circuit board; and / or, the second circuit board is a drive circuit board.

[0022] According to a second aspect of the present disclosure, a compressor is provided, including a compression mechanism and the above-mentioned axial flux motor, and the rotating shaft is connected to the compression mechanism.

[0023] Optionally, the inside of the compression mechanism has a compression chamber, and the compression chamber is communicated with the heat exchange medium channel.

[0024] Optionally, the compression mechanism and the axial flux motor are arranged along the axial direction of the rotating shaft, a flow port is arranged on one side of the compression mechanism close to the axial flux motor, the outlet of the heat exchange medium channel is located on one side of the axial flux motor close to the compression mechanism, and the suction end of the compression chamber is communicated with the outlet of the heat exchange medium channel through the flow port.

[0025] Optionally, the compression mechanism includes a moving scroll plate and a stationary scroll plate arranged oppositely, the moving scroll plate has a first tooth part, the stationary scroll plate has a second tooth part, and the first tooth part and the second tooth part cooperate to define a compression chamber; The rotating shaft includes a main body section and an output section. The main body section is connected to the rotor. The central axis of the output section has a spacing from the central axis of the main body section in the radial direction of the rotating shaft. The output section is connected to the moving scroll plate.

[0026] Optionally, the moving scroll plate includes a wear-resistant plate and a moving member. The moving member includes the first tooth portion. The output section is connected to the moving member so that the moving member can move relative to the wear-resistant plate.

[0027] Optionally, the stationary scroll plate includes a plate body. The second tooth portion is provided on the plate body. The wear-resistant plate is connected to the plate body. One side of the first tooth portion abuts against the wear-resistant plate, the other side of the first tooth portion abuts against the plate body, and the side of the second tooth portion away from the plate body abuts against the wear-resistant plate.

[0028] Optionally, the thickness of the wear-resistant plate is 2 mm to 5 mm. <>

[0029] Optionally, a limit pin is provided on one of the wear-resistant plate and the moving member, and a limit hole is provided on the other of the wear-resistant plate and the moving member. The limit pin is inserted into the limit hole, and the diameter of the limit hole is larger than the diameter of the limit pin.

[0030] Optionally, the wear-resistant plate is located between the axial flux motor and the moving member. The stationary scroll plate is located on the side of the wear-resistant plate away from the axial flux motor. The output section rotatably passes through the wear-resistant plate and is connected to the moving member; A flow-through port is provided on the wear-resistant plate. The outlet of the heat exchange medium channel is located on the side of the axial flux motor close to the wear-resistant plate. The suction end of the compression chamber is communicated with the outlet of the heat exchange medium channel via the flow-through port. An exhaust hole communicated with the compression chamber is provided on the stationary scroll plate.

[0031] Optionally, there are a plurality of the first tooth portions and a plurality of the second tooth portions. Each of the first tooth portions cooperates with its corresponding second tooth portion to define the compression chamber, and the plurality of compression chambers are not communicated with each other.

[0032] Optionally, the plurality of first tooth portions are arranged at intervals in the circumferential direction of the moving scroll plate. The first end of each first tooth portion is close to the center of the moving scroll plate, and the second end of each first tooth portion is close to the edge of the moving scroll plate. From the first end of the first tooth portion to the second end of the first tooth portion, the first tooth portion extends in an involute shape; A plurality of the second tooth portions are arranged at intervals in the circumferential direction of the stationary scroll plate. The first end of each second tooth portion is close to the center of the stationary scroll plate, and the second end of each second tooth portion is close to the edge of the stationary scroll plate. From the first end of the second tooth portion to the second end of the second tooth portion, the second tooth portion extends in an involute shape.

[0033] According to the third aspect of the present disclosure, there is provided a thermal management system including the compressor described above.

[0034] According to the fourth aspect of the present disclosure, there is provided a vehicle including the axial flux motor described above; or, including the compressor described above; or, including the thermal management system described above.

[0035] Through the above technical solution, since the heat exchange medium channel is arranged outside the stator and / or the rotor, it is possible to make the flow area of the heat exchange medium channel not limited by the thickness or structural strength of the stator and / or the rotor, allowing the flow area of the heat exchange medium channel to increase, which is beneficial to increasing the flow rate of the heat exchange medium flowing through the heat exchange medium channel. By using a larger flow rate of the heat exchange medium to flow through the stator and / or the rotor, the heat of the stator and / or the rotor can be taken away faster, which is further beneficial to improving the cooling effect on the stator and / or the rotor.

[0036] Other features and advantages of the present disclosure will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The drawings are used to provide a further understanding of the present disclosure, and constitute a part of the specification. They are used together with the following specific implementation to explain the present disclosure, but do not constitute a limitation to the present disclosure. In the drawings: Figure 1 is a perspective structural view of a compressor provided by an embodiment of the present disclosure; Figure 2 is a cross-sectional view of a compressor provided by an embodiment of the present disclosure; Figure 3 is an exploded view of an axial flux motor provided by an embodiment of the present disclosure; Figure 4 is an exploded view of the motor body of an axial flux motor provided by an embodiment of the present disclosure; Figure 5 is an exploded view of the compression mechanism of a compressor provided by an embodiment of the present disclosure; Figure 6 is a perspective view of a stationary scroll plate of a compressor provided by an embodiment of the present disclosure; Figure 7 is a cross-sectional view of the compression mechanism of a compressor provided by an embodiment of the present disclosure; Figure 8 It is a cross-sectional view when the first tooth part and the second tooth part of the compression mechanism provided by an embodiment of the present disclosure are in a mating state.

[0038] Description of the reference numerals 1000 - Compressor; 100 - Axial flux motor; 10 - Motor main body; 11 - First end; 12 - Second end; 13 - Housing; 131 - Housing main body; 1311 - First boss; 132 - Bearing mounting part; 1321 - Ring-shaped main body; 1322 - Second boss; 20 - Rotating shaft; 21 - Main body section; 22 - Output section; 30 - Rotor; 31 - Rotor disk; 311 - First groove; 312 - First through hole; 32 - Permanent magnet; 33 - First rotor; 34 - Second rotor; 35 - Third rotor; 40 - Stator; 41 - Stator disk; 412 - Second through hole; 42 - Iron core; 43 - Coil; 44 - First stator; 45 - Second stator; 50 - Heat exchange medium channel; 51 - First channel; 52 - Second channel; 53 - Third channel; 54 - Inlet of the heat exchange medium channel; 55 - Outlet of the heat exchange medium channel; 61 - First bearing; 62 - Second bearing; 70 - Motor controller; 71 - Heat exchange medium interface; 72 - Heat exchange medium chamber; 721 - Open end; 80 - Bearing bracket; 200 - Compression mechanism; 201 - Compression chamber; 2011 - Suction end of the compression chamber; 202 - Flow port; 300 - Moving scroll disk; 301 - Moving part; 3011 - First tooth part; 302 - Wear-resistant disk; 400 - Stationary scroll disk; 401 - Disk body; 402 - Second tooth part; 403 - Exhaust hole; 501 - Limit pin; 502 - Limit hole; 601 - Exhaust valve plate; 602 - Valve plate limiter; 700 - End cover; 701 - Exhaust channel; 702 - Communication hole. Specific embodiments

[0039] The following further details the specific embodiments of the present disclosure with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only for the purpose of illustrating and explaining the present disclosure, and are not intended to limit the present disclosure.

[0040] In the present disclosure, unless otherwise stated, the orientation terms such as "upper, lower, top, bottom" are generally defined based on the upper, lower, top, and bottom of the axial flux motor in the normal use state, which is only for the convenience of describing the present disclosure and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, as well as a specific orientation structure and operation. Therefore, it should not be construed as a limitation to the present disclosure. "Inner and outer" refer to the inside and outside of the corresponding component contour. In addition, the terms "first", "second", etc. used are for differentiating one element from another, and do not have sequentiality and importance.

[0041] It should also be noted that, in the description of this disclosure, unless otherwise expressly specified or limited, the terms "disposed," "connected," "connected," and "installed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections, and may be directly connected or indirectly connected through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in this disclosure based on specific circumstances.

[0042] In the related art, a cooling channel is usually provided inside the stator and / or rotor of an axial flux motor. The cooling channel extends radially along the stator and / or rotor. The flow area of the cooling channel is not only restricted by the thickness of the stator and / or rotor and cannot be set larger, but also restricted by the structural strength of the stator and / or rotor and cannot be set larger (because the structural strength of the stator and / or rotor will decrease with the increase of the flow area of the cooling channel inside it), resulting in limited flow of the cooling medium in the cooling channel, and further resulting in unsatisfactory cooling effect on the stator and / or rotor.

[0043] In view of this, if Figures 1 to 8 As shown, according to the first aspect of the present disclosure, an axial flux motor 100 is provided, including a motor body 10, the motor body 10 including a rotating shaft 20, at least one rotor 30, at least one stator 40 and a heat exchange medium channel 50, at least one rotor 30 and at least one stator 40 are arranged along the axial direction of the rotating shaft 20, the rotating shaft 20 is connected to the at least one rotor 30, the heat exchange medium channel 50 is located outside the stator 40 and the rotor 30, and can enable the heat exchange medium to cool the stator 40 and / or the rotor 30 during the flow of the heat exchange medium in the heat exchange medium channel 50.

[0044] Through the above technical solution, since the heat exchange medium channel 50 is arranged outside the stator 40 and the rotor 30, the flow area of the heat exchange medium channel 50 will not be limited by the thickness or structural strength of the stator 40 and / or the rotor 30, allowing the flow area of the heat exchange medium channel 50 to be increased, which is conducive to increasing the flow rate of the heat exchange medium flowing through the heat exchange medium channel 50. By using a larger flow rate of heat exchange medium to flow through the stator 40 and / or the rotor 30, the heat of the stator 40 and / or the rotor 30 can be taken away more quickly, which is conducive to improving the cooling effect of the stator 40 and / or the rotor 30.

[0045] In addition, allowing the flow area of the heat exchange medium passage 50 to increase is also beneficial to reducing the flow resistance of the heat exchange medium in the heat exchange medium passage 50. Thus, on the one hand, it is beneficial to reduce the noise, vibration, and acoustic roughness generated when the heat exchange medium flows in the heat exchange medium passage 50, and further beneficial to improving the NVH (Noise, Vibration, Harshness) performance of the axial flux motor 100. On the other hand, it is beneficial to reduce the load of the device driving the heat exchange medium.

[0046] The above-mentioned heat exchange medium passage 50 being disposed outside the stator 40 and the rotor 30 may refer to being located outside the radial sides of the stator 40 and the rotor 30, that is, the heat exchange medium passage 50 is located outside the stator 40 and the rotor 30 in the radial direction of the stator 40 and the rotor 30. The at least one rotor 30 and the at least one stator 40 being arranged along the axial direction of the rotating shaft 20 may be, for example, the at least one rotor 30 and the at least one stator 40 being arranged face to face along the axial direction of the rotating shaft 20.

[0047] It should be noted that the above-mentioned heat exchange medium may be liquid or gaseous, and the present disclosure does not limit this. As long as the heat exchange medium can exchange heat with the stator 40 and / or the rotor 30. As an implementation manner of the present disclosure, the heat exchange medium may be a refrigerant. For example, the heat exchange medium may be R134 refrigerant.

[0048] In addition, the heat exchange between the above-mentioned heat exchange medium and the stator 40 and / or the rotor 30 during the flow of the heat exchange medium in the heat exchange medium passage 50 may be direct heat exchange or indirect heat exchange. For example, the heat exchange medium directly flows through the stator 40 and / or the rotor 30 and is in direct contact with the stator 40 and / or the rotor 30. Or, the heat exchange medium may not be in direct contact with the stator 40 and / or the rotor 30, but exchanges heat through an intermediate structure. The present disclosure does not limit this.

[0049] The present disclosure does not limit the positions of the inlet 54 of the heat exchange medium passage 50 and the outlet 55 of the heat exchange medium passage 50. As an implementation manner, as Figure 2 and Figure 3 shown, the motor body 10 has opposite first end 11 and second end 12 in the axial direction of the rotating shaft 20. Among them, the inlet 54 of the heat exchange medium passage 50 is located at the first end 11 and / or the outlet 55 of the heat exchange medium passage 50 is located at the second end 12.

[0050] The inlet 54 of the heat exchange medium passage 50 is located at the first end 11, which can facilitate the connection of the inlet 54 of the heat exchange medium passage 50 with a component that supplies the heat exchange medium near the first end 11 (such as the heat exchange medium chamber 72 of the motor controller 70 mentioned below). The outlet 55 of the heat exchange medium passage 50 is located at the second end 12, which can facilitate the heat exchange medium to flow out of the motor body 10 from the second end 12, or facilitate the connection of the outlet 55 of the heat exchange medium passage 50 with a component near the second end 12 (such as the compression chamber 201 of the compression mechanism 200 mentioned below).

[0051] Moreover, since at least one rotor 30 and at least one stator 40 of the axial flux motor 100 are arranged along the axial direction of the rotating shaft 20, and the inlet 54 and the outlet 55 of the heat exchange medium passage 50 are respectively located at the first end 11 and the second end 12 which are axially opposite to each other along the rotating shaft 20 of the motor body 10, it is beneficial for the heat exchange medium passage 50 to exchange heat with each stator 40 and / or each rotor 30, thus being beneficial to ensuring the cooling effect on each stator 40 and / or each rotor 30.

[0052] In addition, in the embodiment where the outlet 55 of the heat exchange medium passage 50 mentioned below is connected to the compression chamber 201 of the compression mechanism 200, the outlet 55 of the heat exchange medium passage 50 is located at the second end 12, which is beneficial to shortening the distance between the heat exchange medium passage 50 and the compression chamber 201, thus being beneficial to reducing the resistance of the heat exchange medium flowing from the heat exchange medium passage 50 into the compression chamber 201.

[0053] Especially in the embodiment where the compression mechanism 200 includes a moving scroll disk 300 and a stationary scroll disk 4Q0 arranged oppositely, since the suction end of the compression chamber 201 is close to the outer peripheral side of the moving scroll disk 300 and the stationary scroll disk 400, and the heat exchange medium passage 50 is located on the outer peripheral side of the stator 40 and / or the rotor 30, therefore, the outlet 55 of the heat exchange medium passage 50 is located at the second end 12, which can make the suction end of the compression chamber zoi approximately correspond to the heat exchange medium passage 50, thus being beneficial to reducing the resistance of the heat exchange medium flowing from the outlet 55 of the heat exchange medium passage 50 into the suction end of the compression chamber 201.

[0054] The present disclosure does not limit the number of the heat exchange medium passages 50. The heat exchange medium passage 50 can be one or multiple. As Figure 3 shown, in an embodiment provided by the present disclosure, the heat exchange medium passage 50 can be multiple, and the multiple heat exchange medium passages 50 are arranged at intervals along the circumferential direction of the rotating shaft 20. With such an arrangement, it is beneficial to increase the contact area between the heat exchange medium flowing through the heat exchange medium passage 50 and the stator 40 and / or the rotor 30, thus being beneficial to enhancing the cooling effect on the stator 40 and / or the rotor 30.

[0055] In addition, the present disclosure does not limit the specific shape of the heat exchange medium channel 50. For example, the heat exchange medium channel 50 may extend along the axial direction of the rotating shaft 20, may extend along the circumferential direction of the rotating shaft 20, or may extend in a spiral shape around the circumferential direction of the rotating shaft 20. That is to say, the heat exchange medium channel 50 may be a straight channel, a curved channel, or a bent channel.

[0056] In addition, the heat exchange medium channel 50 may be formed on the housing 13 of the motor main body 10 or may be located inside the housing 13 of the motor main body 10, and the present disclosure does not limit this. As an implementation manner, as Figure 3 shown, the motor main body 10 further includes a housing 13. The housing 13 includes a housing main body 131. The stator 40 and the rotor 30 are located inside the housing main body 131. The heat exchange medium channel 50 includes a first channel 51. The first channel 51 is located between the outer peripheral surface of the stator 40 and / or the outer peripheral surface of the rotor 30 and the inner peripheral surface of the housing main body 131.

[0057] The first channel 51 is located between the outer peripheral surface of the stator 40 and / or and the inner peripheral surface of the housing main body 131, so that the heat exchange medium can exchange heat with the outer peripheral surface of the stator 40 and / or the rotor 30, and is beneficial to avoiding the housing main body 131 blocking between the stator 40 and the rotor 30 and affecting the magnetic force conduction between the stator 40 and the rotor 30.

[0058] The present disclosure does not limit the shape of the first channel 51. As an implementation manner, as Figure 3 shown, the first channel 51 may extend along the axial direction of the rotating shaft 20. With such a setting, it is beneficial to shorten the path of the first channel 51, reduce the flow resistance of the first channel 51, and thus is beneficial to reducing the power loss and the noise generated when the heat exchange medium flows through the first channel 51.

[0059] As another implementation manner, the first channel 51 may extend in a spiral shape around the rotating shaft 20.

[0060] Optionally, as Figure 3 shown, the housing 13 further includes a plurality of first bosses 1311 provided on the inner peripheral surface of the housing main body 131. The plurality of first bosses 1311 are arranged at intervals along the circumferential direction of the rotating shaft 20. The outer peripheral surface of the stator 40 abuts against the first bosses 1311. Among them, an opening between two adjacent first bosses 1311 forms the first channel 51 facing the stator 40 and / or the rotor 30.

[0061] By abutting the outer peripheral surface of the stator 40 against the first bosses 1311, it is convenient to fix the stator 40 to the housing main body 131 (such as welding, interference fit, fastening connection, etc.). And, the plurality of first bosses 1311 are arranged at intervals along the circumferential direction of the rotating shaft 20. On the one hand, it is beneficial to reduce the weight of the housing 13, and on the other hand, it can define the first channel 51.

[0062] In addition, a first channel 51 with an opening facing the stator 40 and / or the rotor 30 is formed between two adjacent first bosses 1311. This not only facilitates the heat exchange medium in the first channel 51 to contact and exchange heat with the outer peripheral surface of the stator 40 and / or the rotor 30, but also facilitates the heat exchange medium in the first channel 51 to flow to the shaft side of the stator 40 and / or the rotor 30, and facilitates the heat exchange medium located on the shaft side of the stator 40 and / or the rotor 30 to flow into the first channel 51, thereby facilitating the heat exchange medium to exchange heat with the shaft side of the stator 40 and / or the rotor 30, and further being beneficial to improving the cooling effect on the stator 40 and / or the rotor 30.

[0063] It can be understood that there may be a gap between the outer peripheral surface of the rotor 30 and the first boss 1311, so that the rotation of the rotor 30 is not affected.

[0064] The present disclosure does not limit the structure of the first boss 1311. As an implementation manner, as Figure 3 shown, each first boss 1311 may extend along the axial direction of the rotating shaft 20, so as to facilitate a plurality of first bosses 1311 to jointly define a plurality of first channels 51 extending along the axial direction of the rotating shaft 20.

[0065] As another implementation manner, each first boss 1311 may also extend along the circumferential direction of the rotating shaft 20.

[0066] Optionally, as Figure 2 and Figure 3 shown, the axial flux motor 100 further includes a first bearing 61. The housing 13 further includes a bearing mounting portion 132 connected to one end of the housing main body 131. The first bearing 61 is installed in the bearing mounting portion 132 and sleeved on the rotating shaft 20. Under the action of the first bearing 61, the support of the rotating shaft 20 in the housing 13 can be realized, and the rotating shaft 20 can rotate relative to the housing 13 with a lower resistance.

[0067] Optionally, as Figure 2 shown, the axial flux motor 100 may further include a second bearing 62. The second bearing 62 is installed in the motor controller 70 mentioned below and sleeved on the rotating shaft 20, and the rotating shaft 20 is better supported by the first bearing 61 and the second bearing 62.

[0068] The rotating shaft 20 mentioned below includes a main body section 21 and an output section 22. In an embodiment where the central axis of the output section 22 has a spacing from the central axis of the main body section 21 in the radial direction of the rotating shaft 20, the first bearing 61 and the second bearing 62 can be respectively sleeved on both axial ends of the main body section 21 to reduce the vibration and wobbling during the rotation of the rotating shaft 20. Especially in an embodiment where the output section 22 is connected to the moving scroll disk 300, it is beneficial to improve the stability of the movement of the moving scroll disk 300.

[0069] Optionally, as Figure 2 and Figure 3 shown, the axial flux motor 100 further includes a bearing bracket 80. The bearing bracket 80 is installed in the bearing mounting portion 132. The outer ring of the first bearing 61 is connected to the bearing bracket 80. The heat exchange medium channel 50 further includes a second channel 52 communicating with the first channel 51. The second channel 52 is provided on the bearing bracket 80.

[0070] Since the second channel 52 communicates with the first channel 51, the first channel 51 can communicate with the outside of the motor main body 10 through the second channel 52, so that the heat exchange medium in the first channel 51 can flow from one side to the other side of the first bearing 61 / bearing bracket 80 through the second channel 52, avoiding the first bearing 61 / bearing bracket 80 blocking the first channel 51 and affecting the inflow or outflow of the heat exchange medium from the motor main body 10.

[0071] Optionally, the outlet 55 of the heat exchange medium channel 50 can include the end of the second channel 52 far from the first channel 51, and the inlet 54 of the heat exchange medium channel 50 can include the end of the first channel 51 far from the second channel 52.

[0072] The present disclosure does not limit the extension path of the second channel 52. For example, the second channel 52 can extend in a spiral shape. In an embodiment of the present disclosure, as Figure 3 shown, the second channel 52 can extend along the axial direction of the rotating shaft 20.

[0073] Optionally, as Figure 3 shown, a third channel 53 is provided inside the bearing mounting portion 132. The third channel 53 communicates with the first channel 51.

[0074] Since the third channel 53 communicates with the first channel 51, the first channel 51 can communicate with the outside of the motor main body 10 through the third channel 53, so that the heat exchange medium in the first channel 51 can flow from one side to the other side of the first bearing 61 through the third channel 53, avoiding the first bearing 61 blocking the first channel 51 and affecting the inflow or outflow of the heat exchange medium from the motor main body 10.

[0075] Optionally, the outlet 55 of the heat exchange medium passage 50 may include an end of the third passage 53 remote from the first passage 51.

[0076] The present disclosure does not limit the extending path of the third passage 53. For example, the third passage 53 may extend in a spiral shape. In one embodiment of the present disclosure, as Figure 3 shown, the third passage 53 may extend along the axial direction of the rotating shaft 20.

[0077] The present disclosure does not limit how the third passage 53 is specifically formed. As an embodiment, as Figure 3 shown, the bearing mounting portion 132 includes an annular body 1321 and a plurality of second bosses 1322 provided on the inner circumferential surface of the annular body 1321. The plurality of second bosses 1322 are arranged at intervals along the circumferential direction of the rotating shaft 20. A third passage 53 is formed between two adjacent second bosses 1322. Wherein, the outer ring of the first bearing 61 abuts against the second boss 1322, or, the axial flux motor 100 further includes a bearing bracket 80. The outer ring of the first bearing 61 is connected to the bearing bracket 80, and the outer circumferential surface of the bearing bracket 80 abuts against the second boss 1322.

[0078] The outer ring of the first bearing 61 abutting against the second boss 1322 can facilitate the installation of the first bearing 61 in the housing 13; or, the outer ring of the first bearing 61 being connected to the bearing bracket 80 facilitates the installation of the bearing bracket 80 in the housing 13. Moreover, the plurality of second bosses 1322 are arranged at intervals along the circumferential direction of the rotating shaft 20. On the one hand, it is beneficial to reduce the weight of the housing 13, and on the other hand, the third passage 53 can be defined.

[0079] Optionally, the plurality of second bosses 1322 may extend along the axial direction of the rotating shaft 20 to facilitate the construction of a third passage 53 extending along the axial direction of the rotating shaft 20. The second bosses 1322 may also extend in a direction inclined to the axial direction of the rotating shaft 20. The present disclosure does not limit this.

[0080] Optionally, as Figure 4 shown, the rotor 30 may include a rotor disc 31 and permanent magnets 32 provided on the rotor disc 31. A first groove 311 may be provided on the outer circumferential surface of the rotor disc 31, and the first groove 311 can allow the heat exchange medium to pass through, and / or, a first through hole 312 may be provided on the rotor disc 31, and the first through hole 312 can allow the heat exchange medium to pass through.

[0081] On the one hand, the first groove 311 can reduce the weight of the rotor disc 31, which is beneficial to the weight reduction of the rotor 30 and the axial flux motor 100. On the other hand, the first groove 311 can allow the heat exchange medium to pass through. Therefore, the first groove 311 can not only increase the heat exchange area between the rotor disc 31 and the heat exchange medium, but also be conducive to increasing the flow rate of the heat exchange medium flowing through the rotor 30, thereby being beneficial to improving the cooling effect on the rotor 30.

[0082] The first through hole 312 can reduce the weight of the rotor disc 31, which is beneficial to the weight reduction of the rotor 30 and the axial flux motor 100. Moreover, the first through hole 312 can allow the heat exchange medium to pass through. Therefore, the first through hole 312 can not only increase the heat exchange area between the rotor disc 31 and the heat exchange medium, but also be conducive to increasing the flow rate of the heat exchange medium flowing through the rotor 30, thereby being beneficial to improving the cooling effect on the rotor 30.

[0083] Moreover, in the embodiment as Figure 2 shown, the interior of the compression mechanism 200 has a compression chamber 201. The outlet 55 of the heat exchange medium passage 50 is in communication with the compression chamber 201 of the compression mechanism 200. The setting of the first groove 311 and / or the first through hole 312 is also conducive to increasing the flow rate of the heat exchange medium flowing into the compression chamber 201 and is beneficial to reducing the flow resistance of the heat exchange medium, thereby being beneficial to improving the performance of the compressor 1000.

[0084] Here, the heat exchange medium passing through the first groove 311 and / or the first through hole 312 can flow out from the opening of the first channel 51 towards the rotor 30 and / or the stator 40, and / or can flow into the interior of the housing 13 from the heat exchange medium chamber 72 of the motor controller 70 mentioned below.

[0085] Optionally, as Figure 4 shown, the stator 40 may include a stator disc 41, an iron core 42 provided on the stator disc 41, and a coil 43 wound around the iron core 42. Among them, a second groove (not shown) is provided on the outer peripheral surface of the stator disc 41, and the second groove can allow the heat exchange medium to pass through, and / or a second through hole 412 is provided on the stator disc 41, and the second through hole 412 can allow the heat exchange medium to pass through.

[0086] The second groove can reduce the weight of the stator disc 41, which is beneficial to the weight reduction of the stator 40 and the axial flux motor 100. Moreover, the second groove can allow the heat exchange medium to pass through. Therefore, the second groove can not only increase the heat exchange area between the stator disc 41 and the heat exchange medium, but also be conducive to increasing the flow rate of the heat exchange medium flowing through the rotor 30, thereby being beneficial to improving the cooling effect on the stator 40.

[0087] The second through-hole 412 can reduce the weight of the stator disk 41, which is beneficial to the weight reduction of the stator 40 and the axial flux motor 100. Moreover, the second through-hole 412 can allow the heat exchange medium to pass through. Therefore, the second through-hole 412 can not only increase the heat exchange area between the stator disk 41 and the heat exchange medium, but also be beneficial to increasing the flow rate through the rotor 30, thus being beneficial to improving the cooling effect on the stator 40.

[0088] Moreover, in the embodiment as Figure 2 shown, the inside of the compression mechanism 200 has a compression chamber 201. The outlet 55 of the heat exchange medium passage 50 is communicated with the compression chamber 201 of the compression mechanism 200. Arranging the second groove and / or the second through-hole 412 is also beneficial to increasing the flow rate of the heat exchange medium flowing into the compression chamber 201 and reducing the flow resistance of the heat exchange medium, thus being beneficial to improving the performance of the compressor 1000.

[0089] Here, the heat exchange medium passing through the second groove and / or the second through-hole 412 can flow out from the opening of the first passage 51 toward the rotor 30 and / or the stator 40, and / or flow into the inside of the housing 13 from the heat exchange medium chamber 72 of the motor controller 70 mentioned below.

[0090] Optionally, as Figure 4 shown, there can be multiple iron cores 42. Each iron core 42 is wound with a coil 43, and a second through-hole 412 is arranged between two adjacent iron cores 42. Since the second through-hole 412 is located between two adjacent iron cores 42, when the heat exchange medium flows through the second through-hole 412, it can contact and exchange heat with the iron core 42 near the second through-hole 412 and the coil 43 on the iron core 42. That is to say, the second through-hole 412 can play a role in guiding the flow path of the heat exchange medium, making the flow path of at least part of the heat exchange medium closer to the coil 43 and the iron core 42, thus being beneficial to improving the cooling effect on the coil 43 and the iron core 42.

[0091] The present disclosure does not limit the number of the rotor 30 and the stator 40. As a first embodiment, there is one rotor 30 and one stator 40, and the stator 40 and the rotor 30 are arranged at intervals along the axial direction of the rotating shaft 20.

[0092] As a second embodiment of the present disclosure, there are two rotors 30 and one stator 40, and the stator 40 is arranged at intervals along the axial direction of the rotating shaft 20 between the two rotors 30.

[0093] As a third embodiment of the present disclosure, there is one rotor 30 and two stators 40, and the rotor 30 is arranged at intervals along the axial direction of the rotating shaft 20 between the two stators 40.

[0094] As a fourth embodiment of the present disclosure, as Figure 3 andFigure 4 As shown, there are multiple rotors 30, and the multiple rotors 30 include a first rotor 33, a second rotor 34, and a third rotor 35. The first rotor 33, the second rotor 34, and the third rotor 35 are all connected to the rotating shaft 20. There are multiple stators 40, and the multiple stators 40 include a first stator 44 and a second stator 45. The first rotor 33, the second rotor 34, and the third rotor 35 are arranged at intervals along the axial direction of the rotating shaft 20. The first stator 44 is located between the first rotor 33 and the second rotor 34, and the second stator 45 is located between the second rotor 34 and the third rotor 35.

[0095] Compared with the above first, second, and third embodiments, the axial flux motor 100 of the fourth embodiment can allow both the multiple stators 40 and the multiple rotors 30 to have smaller radial dimensions under the condition of having the same torque and power. Thus, without increasing the radial dimension of the housing 13 along the rotating shaft 20, or even reducing the radial dimension of the housing 13 along the rotating shaft 20, it is allowed to arrange a heat exchange medium channel 50 outside the stator 40 and the rotor 30, which is beneficial to reducing the weight and space of the housing 13, and further beneficial to the lightweight and miniaturization of the axial flux motor 100.

[0096] Optionally, the outer diameter of the housing 13 corresponding to the rotor 30 and the stator 40 (i.e., the outer diameter of the housing main body 131) can be set to 85 mm to 100 mm.

[0097] Moreover, for the stator 40 and the rotor 30 with smaller radial dimensions, it is also allowed to set a larger flow-through area for the heat exchange medium channel 50 on the outer peripheral side of the stator 40 and the rotor 30. Thus, on the one hand, it is beneficial to improve the cooling effect on the stator 40 and the rotor 30, and on the other hand, it is beneficial to reduce the flow resistance of the heat exchange medium and allow the heat exchange medium to flow at a lower flow rate, which is beneficial to reducing the vibration and noise generated during the flow of the heat exchange medium.

[0098] In addition, in the embodiment as Figure 2 shown, the heat exchange medium channel 50 is communicated with the compression chamber 201 of the compression mechanism 200. Setting a larger flow-through area for the heat exchange medium channel 50 on the outer peripheral side of the stator 40 and the rotor 30 can also reduce the resistance of the heat exchange medium flowing into the compression chamber 201, which is also beneficial to improving the performance of the compressor 1000 at high speeds. For example, it is allowed to increase the rotation speed of the rotating shaft 20 to more than 10,000 rpm, and the compression mechanism 200 still maintains normal operation.

[0099] Optionally, the number of iron cores 42 on the multiple stators 40 can be set to be the same, and the number of permanent magnets 32 on the multiple rotors 30 can be set to be the same. In this way, it is beneficial to improve the synchronism and force balance of the multiple rotors 30.

[0100] The present disclosure does not limit the number of iron cores 42 on each stator 40, nor does it limit the number of permanent magnets 32 on each rotor 30, as long as the stability and torque requirements of the axial flux motor 100 can be met. For example, the number of iron cores 42 on each stator 40 can be 12 on average and the number of permanent magnets 32 on each rotor 30 can be 8 on average, the number of iron cores 42 on each stator 40 can be 9 on average and the number of permanent magnets 32 on each rotor 30 can be 6 on average, the number of iron cores 42 on each stator 40 can be 24 on average and the number of permanent magnets 32 on each rotor 30 can be 8 on average.

[0101] Optionally, as Figure 1 and Figure 2 shown, the axial flux motor 100 further includes a motor controller 70 connected to the motor body 10. The motor controller 70 and the motor body en 10 can be arranged axially along the rotating shaft 20. The motor controller 70 can control the stator 40, so as to control the power output by the rotating shaft 20. For example, the current passing through the windings of the stator 40 can be controlled, so that the rotating shaft 20 rotates at a suitable speed and torque.

[0102] Moreover, the motor controller 70 and the motor body 10 are arranged axially along the rotating shaft 20, which is beneficial to saving the radial dimension of the axial flux motor 100 along the rotating shaft 20.

[0103] The present disclosure does not limit the structure of the motor controller 70. As an implementation manner, as Figure 2 and Figure 3 shown, the motor controller 70 has a heat exchange medium interface 71 and a heat exchange medium chamber 72. The heat exchange medium interface 71 is communicated with the heat exchange medium chamber 72. One end of the heat exchange medium chamber 72 close to the motor body 10 is an open end 721. The inlet 54 of the heat exchange medium channel 50 is located on the side of the motor body 10 close to the motor controller 70, and the inlet 54 of the heat exchange medium channel 50 is communicated with the open end 721.

[0104] With such an arrangement, the heat exchange medium can flow into the heat exchange medium chamber 72 through the heat exchange medium interface 71, and the heat exchange medium in the heat exchange medium chamber 72 can flow into the heat exchange medium channel 50 (such as the first channel 51) through the open end 721 of the heat exchange medium chamber 72.

[0105] It can be understood that the heat exchange medium can flow into the interior of the housing main body 131 through the open end 721 of the heat exchange medium chamber 72, and contact and exchange heat with the axial sides of the rotor 30 and the stator 40.

[0106] As an implementation, the motor controller 70 may be provided with a mounting portion, and the second bearing 62 may be mounted on the mounting portion, which is beneficial for the second bearing 62 to be closer to the end of the rotor 30, so as to provide better support and vibration damping for the rotor 30.

[0107] Optionally, the mounting portion and the second bearing 62 may both be located in the heat exchange medium chamber 72. With such a setting, the heat exchange medium chamber 72 can accommodate a part of the rotating shaft 20, which is beneficial for reducing the axial dimension of the axial flux motor 100 along the axial direction of the rotating shaft 20.

[0108] Optionally, the motor controller 70 includes a first circuit board (not shown) and a second circuit board (not shown), and the first circuit board and the second circuit board are arranged along the axial direction of the rotating shaft 20. With such a setting, it is beneficial for reducing the radial dimension of the first circuit board and the second circuit board along the radial direction of the rotating shaft 20, thereby being beneficial for reducing the radial dimension of the motor controller 70 along the radial direction of the rotating shaft 20. Especially in the implementation where the housing 13 has a relatively small radial dimension, it is beneficial for the radial dimension of the motor controller 70 along the radial direction of the rotating shaft 20 to match the radial dimension of the motor housing 13 along the radial direction of the rotating shaft 20, so as to be beneficial for reducing the radial dimension of the axial flux motor 100 along the radial direction of the rotating shaft 20.

[0109] The present disclosure does not limit the specific types of the first circuit board and the second circuit board. As an implementation, the first circuit board may be a control circuit board, and / or the second circuit board may be a drive circuit board.

[0110] As an implementation, the vehicle may include a battery pack, a small battery, and an IGBT (drive module). The drive circuit board may be electrically connected to the small battery and the IGBT, the control circuit board may be electrically connected to the battery pack and the IGBT, the IGBT may be electrically connected to the coil 43 of the stator 40, the battery pack supplies a voltage of 300V - 1000V to the IGBT through the drive circuit board, and the small battery supplies a voltage of 12V - 52V to the IGBT through the control circuit board to control the voltage output by the IGBT to the winding, so as to control the magnetic force by changing the winding voltage, and further control the rotation speed of the rotor 30.

[0111] According to the second aspect of the present disclosure, a compressor 1000 is provided, which includes a compression mechanism 200 and the above-mentioned axial flux motor 100, and the rotating shaft 20 is connected to the compression mechanism 200.

[0112] Optionally, as Figure 2 、 Figure 7 and Figure 8 shown, the inside of the compression mechanism 200 has a compression chamber 201, and the compression chamber 201 is communicated with the heat exchange medium channel 50.

[0113] With such a setting, the axial flux motor 100 can not only drive the compression mechanism 200 of the compressor 1000, but also use the working medium of the compressor 1000 as the heat exchange medium of the stator 40 and / or the rotor 30. Thus, the heat exchange medium channel 50 can not only cool the stator 40 and / or the rotor 30 with the heat exchange medium, but also convey the heat exchange medium to the compression chamber 201 of the compressor 1000, so that the heat exchange medium is compressed in the compression chamber 201, thereby eliminating the need to provide a separate pipeline for conveying the heat exchange medium to the compression chamber 201.

[0114] In addition, when the compressor 1000 of the present disclosure is applied to a thermal management system, the heat exchange medium can be a refrigerant. After cooling the stator 40 and the rotor 30, the temperature of the refrigerant will rise accordingly, which is beneficial to increasing the suction temperature and suction pressure of the compression chamber 201 of the compressor 1000.

[0115] The present disclosure does not limit the arrangement of the compression mechanism 200 and the axial flux motor 100. As an implementation manner, as Figure 1 and Figure 2 shown, the compression mechanism 200 and the axial flux motor 100 are arranged axially along the rotation axis 20. A flow port 202 is provided on one side of the compression mechanism 200 close to the axial flux motor 100. The outlet 55 of the heat exchange medium channel 50 is located on one side of the axial flux motor 100 close to the compression mechanism 200. The suction end 2011 of the compression chamber 201 is communicated with the outlet 55 of the heat exchange medium channel 50 via the flow port 202.

[0116] The axial arrangement of the compression mechanism 200 and the axial flux motor 100 along the rotation axis 20 is beneficial to reducing the radial dimension of the axial flux motor 100 along the rotation axis 20. Moreover, the setting of the flow port 202 enables the heat exchange medium to flow into the compression chamber 201 from the heat exchange medium channel 50 along the axial direction of the rotation axis 20, which is beneficial to reducing the resistance suffered by the heat exchange medium due to the change of the flow direction, thereby being beneficial to the load of the axial flux motor 100 and improving the performance of the compressor 1000.

[0117] The present disclosure does not limit the structure of the compression mechanism 200. As an implementation manner, as Figures 5 to 8As shown, the compression mechanism 200 may include a movable scroll disk 300 and a stationary scroll disk 400 that are oppositely arranged. The movable scroll disk 300 has a first tooth portion 3011, and the stationary scroll disk 400 has a second tooth portion 402. The first tooth portion 3011 cooperates with the second tooth portion 402 to define a compression chamber 201. That is to say, the compression mechanism 200 may be a scroll compression mechanism. The rotating shaft 20 includes a main body section 21 and an output section 22. The main body section 21 is connected to the rotor 30. The central axis of the output section 22 has a spacing from the central axis of the main body section 21 in the radial direction of the rotating shaft 20. The output section 22 is connected to the movable scroll disk 300.

[0118] Since the central axis of the output section 22 has a spacing from the central axis of the main body section 21 in the radial direction of the rotating shaft 20, that is, the central axis of the output section 22 is not coaxial with the central axis of the rotating shaft 20. Therefore, as the main body section 21 rotates, the output section 22 can rotate around the central axis of the main body section 21, thereby driving the first tooth portion 3011 of the movable scroll disk 300 to translate and rotate relative to the second tooth portion 402 of the stationary scroll disk 400. As the first tooth portion 3011 translates and rotates, the volume of the compression chamber 201 formed by the first tooth portion 3011 and the second tooth portion 402 continuously changes, causing the heat exchange medium to be compressed.

[0119] As other embodiments of the present disclosure, the compression mechanism 200 may also be a piston compression mechanism 200.

[0120] The present disclosure does not limit the structure of the movable scroll disk 300. As an embodiment, as Figure 5 and Figure 7 shown, the movable scroll disk 300 includes a wear-resistant disk 302 and a moving member 301. The moving member 301 includes a first tooth portion 3011. The output section 22 is connected to the moving member 301 so that the moving member 301 can move relative to the wear-resistant disk 302.

[0121] Since the moving member 301 includes a first tooth portion 3011 and the output section 22 is connected to the moving member 301 so that the moving member 301 can move relative to the wear-resistant disk 302, the rotating shaft 20 does not need to drive the entire structure of the movable scroll disk 300 (such as the wear-resistant disk 302 and the moving member 301), but only needs to drive a part of the structure of the movable scroll disk 300 (i.e., the moving member 301) to achieve the movement of the first tooth portion 3011. This is beneficial to reducing the mass of the moving components of the movable scroll disk 300. On the one hand, it is beneficial to reducing the load of the axial flux motor 100, and on the other hand, it is beneficial to improving the NVH performance of the compressor 1000.

[0122] Optionally, as Figure 6As shown in the figure, the stationary scroll disk 400 includes a disk body 401. A second tooth portion 402 is provided on the disk body 401. The wear-resistant disk 302 is connected to the disk body 401. One side of the first tooth portion 3011 (i.e., the side of the first tooth portion 3011 away from the disk body 401 along the axial direction of the rotating shaft 20) abuts against the wear-resistant disk 302, and the other side of the first tooth portion 3011 (i.e., the side of the first tooth portion 3011 close to the disk body 401 along the axial direction of the rotating shaft 20) abuts against the disk body 401. The side of the second tooth portion 402 away from the disk body 401 (i.e., the side of the second tooth portion 402 close to the disk body 401 along the axial direction of the rotating shaft 20) abuts against the wear-resistant disk 302.

[0123] With such a setting, the compression chamber 201 can be jointly defined by the first tooth portion 3011, the second tooth portion 402, the disk body 401, and the wear-resistant disk 302. Among them, through the abutment of the first tooth portion 3011 with the wear-resistant disk 302 and the disk body 401, and the abutment of the second tooth portion 402 with the wear-resistant disk 302, the sealing of both sides of the compression chamber 201 along the axial direction of the rotating shaft 20 can be achieved.

[0124] In the present disclosure, the wear-resistant disk 302 can be set to any suitable size according to requirements. As an implementation manner, the thickness of the wear-resistant disk 302 can be 2 mm to 5 mm. When the thickness of the wear-resistant disk 302 satisfies 2 mm to 5 mm, the wear-resistant disk 302 can have sufficient rigidity, which is conducive to the deformation of the wear-resistant disk 302 under the reaction force of the heat exchange medium in the compression chamber 201, and further conducive to ensuring the sealing performance of the compression chamber 201.

[0125] It can be understood that the thickness of the wear-resistant disk 302 is the dimension of the wear-resistant disk 302 along the axial direction of the rotating shaft 20.

[0126] Optionally, as Figure 5 and Figure 7 shown in the figure, a limit pin 501 is provided on one of the wear-resistant disk 302 and the moving part 301, and a limit hole 502 is provided on the other of the wear-resistant disk 302 and the moving part 301. The limit pin 501 is inserted into the limit hole 502, and the diameter of the limit hole 502 is larger than the diameter of the limit pin 501.

[0127] Since the limit hole 502 can limit the movement of the limit pin within a certain range, the limit hole 502 and the limit pin can limit the movement range of the moving part 301 relative to the wear-resistant disk 302, which is conducive to ensuring that the moving part 301 and its first tooth portion 3011 translate and rotate relative to the stationary scroll disk 400 along a preset trajectory, and is conducive to avoiding the wear between the first tooth portion 3011 and the second tooth portion 402, and further conducive to improving the reliability of the compression mechanism 200.

[0128] The present disclosure does not limit the number of the limit pins 501 and the limit holes 502. For example, the number of the limit pins 501 and the limit holes 502 can be 5 to 9. With such a setting, it is beneficial to ensure the limiting effect on the moving part 301 and prevent the structure from being too complex.

[0129] As an implementation manner, as Figure 5 shown, the wear-resistant disk 302 is located between the axial-flux motor 100 and the moving part 301, the stationary scroll disk 400 is located on the side of the wear-resistant disk 302 away from the axial-flux motor 100, the output section 22 rotatably passes through the wear-resistant disk 302 and is connected to the moving part 301. A flow-through port 202 is provided on the wear-resistant disk 302, and the outlet 55 of the heat exchange medium channel 50 is located on the side of the axial-flux motor 100 close to the wear-resistant disk 302. The suction end 2011 of the compression chamber 201 is communicated with the outlet 55 of the heat exchange medium channel 50 via the flow-through port 202, and an exhaust hole 403 communicated with the compression chamber 201 is provided on the stationary scroll disk 400.

[0130] With such a setting, the heat exchange medium can pass through the wear-resistant disk 302 through the flow-through port 202, and then enter the compression chamber 201 from the suction end 2011 of the compression chamber 201. As the moving part 301 moves and rotates, the heat exchange medium is compressed as the volume of the compression chamber 201 changes, and finally exits the compression chamber 201 from the exhaust hole 403.

[0131] Here, as Figure 6 shown, the exhaust hole 403 can be provided on the disk body 401 of the stationary scroll disk 400.

[0132] As other implementation manners of the present disclosure, the stationary scroll disk 400 can be located between the axial-flux motor 100 and the moving part 301, and the wear-resistant disk 302 can be located on the side of the stationary scroll disk 400 away from the axial-flux motor 100. The output section 22 rotatably passes through the stationary scroll disk 400 and is connected to the moving part 301.

[0133] Optionally, an exhaust valve plate 601 can be provided on the side of the exhaust hole 403 of the stationary scroll disk 400 away from the wear-resistant disk 302. The exhaust valve plate 601 can function as a one-way valve, so that the heat exchange medium in the compression chamber 201 can only flow unidirectionally out of the compression chamber 201 through the exhaust hole 403.

[0134] Optionally, a valve plate limiter 602 can also be provided on the stationary scroll disk 400. The valve plate limiter 602 can limit the elastic deformation degree of the exhaust valve plate 601 when it is pushed open by the heat exchange medium, which is beneficial to prevent the exhaust valve plate 601 from being deformed excessively and failing.

[0135] In the present disclosure, the number of the first tooth portions 3011 and the second tooth portions 402 can be set to any number according to requirements, which can be set to one or multiple. The present disclosure does not limit this. As an implementation manner, for example, Figures 5 to 8 as shown, the number of the first tooth portions 3011 can be multiple, and the number of the second tooth portions 402 can be multiple. Each first tooth portion 3011 cooperates with its corresponding second tooth portion 402 to define a compression chamber 201, and the multiple compression chambers 201 are not communicated with each other.

[0136] When the compression chamber 201 compresses gas, it will also be subjected to the reaction force of the gas, thereby causing the vibration of the moving scroll disk 300. And multiple non-communicating compression chambers 201 can be formed by the multiple first tooth portions 3011 and the multiple second tooth portions 402. By simultaneously compressing gas in the multiple non-communicating compression chambers 201, the reaction force received by the moving scroll disk 300 can be distributed to different compression chambers 201, which is beneficial to reducing the reaction force received by a single compression chamber 201, and further beneficial to reducing the vibration and noise of the moving scroll disk 300 caused by the compression of the gas, improving the stability of the compression mechanism 200 during operation, and improving the NVH performance of the compressor 1000.

[0137] The present disclosure does not limit the number of the first tooth portions 3011 and the second tooth portions 402. As an implementation manner, the number of the first tooth portions 3011 and the second tooth portions 402 can both be 2 to 10. Such a setting is beneficial to improving the stability of the compression mechanism 200 during operation and preventing the structures of the moving scroll disk 300 and the stationary scroll disk 400 from being too complex.

[0138] The present disclosure does not limit the specific structures of the first tooth portions 3011 and the second tooth portions 402. As an implementation manner, for example, Figures 5 to 8 as shown, the multiple first tooth portions 3011 are arranged at intervals along the circumferential direction of the moving scroll disk 300. The first end 11 of each first tooth portion 3011 is close to the center of the moving scroll disk 300, and the second end 12 of each first tooth portion 3011 is close to the edge of the moving scroll disk 300. From the first end 11 to the second end 12 of the first tooth portion 3011, the first tooth portion 3011 extends in an involute shape. The multiple second tooth portions 402 are arranged at intervals along the circumferential direction of the stationary scroll disk 400. The first end 11 of each second tooth portion 402 is close to the center of the stationary scroll disk 400, and the second end 12 of each second tooth portion 402 is close to the edge of the stationary scroll disk 400. From the first end 11 to the second end 12 of the second tooth portion 402, the second tooth portion 402 extends in an involute shape.

[0139] With such a setting, a plurality of first tooth portions 3011 and a plurality of second tooth portions 402 can jointly define a plurality of crescent-shaped compression chambers 201, so that during the translational rotation of the first tooth portions 3011 relative to the second tooth portions 402, compression of the heat exchange medium can be achieved.

[0140] Here, optionally, as Figure 5 and Figure 7 shown, the flow-through port 202 can be arranged at a position close to the outer peripheral side of the wear-resistant disc 302. On the one hand, it is beneficial for the position of the flow-through port 202 to correspond to the outlet 55 of the heat exchange medium channel 50, thereby facilitating the shortening of the flow path of the heat exchange medium. On the other hand, it is beneficial for the position of the flow-through port 202 to be close to the second end 12 of the first tooth portion 3011 and the second end 12 of the second tooth portion 402, that is, it is beneficial for the position of the flow-through port 202 to be close to the suction end 2011 of the compression chamber 201, thereby facilitating the improvement of the compression effect of the compression mechanism 200 on the heat exchange medium.

[0141] Optionally, as Figure 5 and Figure 6 shown, a plurality of exhaust holes 403 are provided on the stationary scroll plate 400, and exhaust holes 403 are provided between any adjacent first tooth portions 3011 and second tooth portions 402. Since the compression processes of the compression chambers 201 between the plurality of first tooth portions 3011 and the second tooth portions 402 are different during the translational rotation of the moving scroll plate 300, exhaust holes 403 are provided between any adjacent first tooth portions 3011 and second tooth portions 402, so that the plurality of compression chambers 201 can exhaust gas through the exhaust holes 403 closest to them respectively, thereby facilitating the improvement of the exhaust continuity of the compressor 1000.

[0142] Optionally, the compressor 1000 may further include an end cover 700. The end cover 700, the outer peripheral wall of the stationary scroll plate 400, the wear-resistant disc 302, the housing, and the motor controller 70 can be sequentially connected along the axial direction of the rotating shaft 20 to form a closed internal chamber, which is beneficial for improving the sealing performance of the compressor 1000 as a whole to the heat exchange medium.

[0143] Optionally, an exhaust passage 701 extending in the vertical direction (such as the height direction of the vehicle) can be provided on the end cover 700. The upper end of the exhaust passage 701 is connected to an external gas pipeline or gas-using equipment. A communication hole 702 is also provided on the end cover 700. One end of the communication hole 702 is communicated with the exhaust hole 403 of the stationary scroll plate 400, and the other end of the communication hole 702 is tangentially communicated with the inner wall of the exhaust passage 701.

[0144] The heat exchange medium discharged from the exhaust hole 403 can sequentially flow into an external gas-using device or gas pipeline through the communication hole 702 and the exhaust passage 701. Among them, when the heat exchange medium is in the communication hole 702 and the exhaust passage 701, it will spiral upward along the inner wall of the exhaust passage 701, so that the lubricating oil with a large mass mixed in the heat exchange medium is cyclone-separated, and the separated lubricating oil can flow downward under the action of gravity and be collected.

[0145] According to the third aspect of the present disclosure, a thermal management system is provided, including the compressor 1000 described above.

[0146] According to the fourth aspect of the present disclosure, a vehicle is provided, including the axial flux motor 100 described above, or including the compressor 1000 described above, or including the thermal management system described above.

[0147] The preferred embodiments of the present disclosure have been described in detail above in conjunction with the accompanying drawings. However, the present disclosure is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0148] In addition, it should be noted that, among the various specific technical features described in the above specific embodiments, without conflict, they can be combined in any appropriate manner. To avoid unnecessary repetition, the present disclosure will not separately describe various possible combination methods.

[0149] In addition, any combination can be made between various different embodiments of the present disclosure, as long as it does not violate the idea of the present disclosure, and it should also be regarded as the content disclosed by the present disclosure.

Claims

1. An axial flux motor, characterized in that, It includes a motor body, and the motor body includes a rotating shaft, at least one rotor, at least one stator, and a heat exchange medium channel; At least one of the rotors and at least one of the stators are arranged along the axial direction of the rotating shaft, and the rotating shaft is connected to at least one of the rotors; The heat exchange medium channel is located outside the stator and the rotor, and can cool the stator and / or the rotor during the flow of the heat exchange medium in the heat exchange medium channel.

2. The axial flux motor according to claim 1, characterized in that, The motor body has opposite first and second ends in the axial direction of the rotating shaft, wherein, the inlet of the heat exchange medium channel is located at the first end and / or the outlet of the heat exchange medium channel is located at the second end.

3. The axial flux motor according to claim 1, characterized in that, There are multiple heat exchange medium channels, and the multiple heat exchange medium channels are arranged at intervals along the circumferential direction of the rotating shaft.

4. The axial flux motor according to claim 1, characterized in that, The motor body further includes a housing, the housing includes a housing main body, the stator and the rotor are located inside the housing main body, and the heat exchange medium channel includes a first channel, and the first channel is located between the outer peripheral surface of the stator and / or the outer peripheral surface of the rotor and the inner peripheral surface of the housing main body.

5. The axial flux motor according to claim 4, characterized in that, The first channel extends along the axial direction of the rotating shaft.

6. The axial flux motor according to claim 4, characterized in that, The housing further includes a plurality of first bosses provided on the inner peripheral surface of the housing main body, the plurality of first bosses are arranged at intervals along the circumferential direction of the rotating shaft, and the outer peripheral surface of the stator abuts against the first bosses; wherein, an opening facing the stator and / or the rotor is formed between two adjacent first bosses to form the first channel.

7. The axial flux motor according to claim 4, characterized in that, The axial flux motor further includes a first bearing, the housing further includes a bearing mounting portion connected to one end of the housing main body, and the first bearing is mounted in the bearing mounting portion and sleeved on the rotating shaft.

8. The axial flux motor according to claim 7, wherein The axial flux motor further includes a bearing bracket, the bearing bracket is mounted in the bearing mounting portion, and the outer ring of the first bearing is connected to the bearing bracket; The heat exchange medium channel further includes a second channel communicated with the first channel, and the second channel is provided on the bearing bracket.

9. The axial flux motor according to claim 7, wherein A third channel is provided inside the bearing mounting portion, and the third channel is communicated with the first channel.

10. The axial flux motor according to claim 9, wherein, The bearing mounting portion includes an annular main body and a plurality of second bosses provided on the inner peripheral surface of the annular main body, the plurality of second bosses are arranged at intervals along the circumferential direction of the rotating shaft, and an opening between two adjacent second bosses forms the third channel; wherein, the outer ring of the first bearing abuts against the second boss; or, the axial flux motor further includes a bearing bracket, the outer ring of the first bearing is connected to the bearing bracket, and the outer peripheral surface of the bearing bracket abuts against the second boss.

11. The axial flux motor according to any one of claims 1 to 10, characterized in that, The rotor includes a rotor disc and permanent magnets provided on the rotor disc; wherein, a first groove is provided on the outer peripheral surface of the rotor disc, and the first groove can allow the heat exchange medium to pass through; and / or, a first through hole is provided on the rotor disc, and the first through hole can allow the heat exchange medium to pass through.

12. The axial flux motor according to any one of claims 1-10, characterized in that, The stator includes a stator disc, a core provided on the stator disc, and a coil wound around the core; Wherein, a second groove is provided on the outer peripheral surface of the stator disk, and the second groove can allow a heat exchange medium to pass through; and / or, a second through hole is provided on the stator disk, and the second through hole can allow the heat exchange medium to pass through.

13. The axial flux motor according to claim 12, characterized in that, There are multiple iron cores, and each iron core is wound with the coil. A second through hole is provided between two adjacent iron cores.

14. The axial flux motor according to any one of claims 1-10, characterized in that, There are multiple rotors, and the multiple rotors include a first rotor, a second rotor, and a third rotor. The first rotor, the second rotor, and the third rotor are all connected to the rotating shaft. There are multiple stators, and the multiple stators include a first stator and a second stator. The first rotor, the second rotor, and the third rotor are arranged at intervals along the axial direction of the rotating shaft. The first stator is located between the first rotor and the second rotor, and the second stator is located between the second rotor and the third rotor.

15. The axial flux motor according to any one of claims 1-10, characterized in that, The axial flux motor further includes a motor controller connected to the motor body, and the motor controller and the motor body are arranged along the axial direction of the rotating shaft.

16. The axial flux motor according to claim 15, characterized in that, The motor controller has a heat exchange medium interface and a heat exchange medium chamber. The heat exchange medium interface is communicated with the heat exchange medium chamber. One end of the heat exchange medium chamber close to the motor body is an open end. The inlet of the heat exchange medium channel is located on the side of the motor body close to the motor controller, and the inlet of the heat exchange medium channel is communicated with the open end.

17. The axial flux motor according to claim 15, wherein, The motor controller includes a first circuit board and a second circuit board, and the first circuit board and the second circuit board are arranged along the axial direction of the rotating shaft.

18. The axial flux motor according to claim 17, characterized in that, The first circuit board is a control circuit board; and / or, the second circuit board is a drive circuit board.

19. A compressor, characterized in that, It includes a compression mechanism and the axial flux motor according to any one of claims 1-18, and the rotating shaft is connected to the compression mechanism.

20. The compressor according to claim 19, characterized in that, The inside of the compression mechanism has a compression chamber, and the compression chamber is communicated with the heat exchange medium channel.

21. The compressor according to claim 20, wherein, The compression mechanism and the axial flux motor are arranged along the axial direction of the rotating shaft. A through-flow port is provided on the side of the compression mechanism close to the axial flux motor. The outlet of the heat exchange medium channel is located on the side of the axial flux motor close to the compression mechanism. The suction end of the compression chamber is communicated with the outlet of the heat exchange medium channel through the through-flow port.

22. The compressor according to claim 19, wherein, The compression mechanism includes a moving scroll disk and a stationary scroll disk arranged oppositely. The moving scroll disk has a first tooth portion, and the stationary scroll disk has a second tooth portion. The first tooth portion and the second tooth portion cooperate to define the compression chamber. The rotating shaft includes a main body section and an output section. The main body section is connected to the rotor. The central axis of the output section has a spacing from the central axis of the main body section in the radial direction of the rotating shaft, and the output section is connected to the moving scroll disk.

23. The compressor according to claim 22, wherein, The moving scroll disk includes a wear-resistant disk and a moving member. The moving member includes the first tooth portion, and the output section is connected to the moving member so that the moving member can move relative to the wear-resistant disk.

24. The compressor according to claim 23, characterized in that, The stationary scroll disk includes a disk body, the second tooth portion is provided on the disk body, the wear-resistant disk is connected to the disk body, one side of the first tooth portion abuts against the wear-resistant disk, the other side of the first tooth portion abuts against the disk body, and the side of the second tooth portion away from the disk body abuts against the wear-resistant disk.

25. The compressor according to claim 24, characterized in that, The thickness of the wear-resistant disk is 2 mm to 5 mm.

26. The compressor according to claim 23, characterized in that, A limit pin is provided on one of the wear-resistant disk and the moving part, a limit hole is provided on the other of the wear-resistant disk and the moving part, the limit pin is inserted into the limit hole, and the diameter of the limit hole is greater than the diameter of the limit pin.

27. The compressor according to claim 23, characterized in that, The wear-resistant disk is located between the axial flux motor and the moving part, the stationary scroll disk is located on the side of the wear-resistant disk away from the axial flux motor, and the output section rotatably passes through the wear-resistant disk and is connected to the moving part; The wear-resistant disk is provided with a flow-through port, the outlet of the heat exchange medium channel is located on the side of the axial flux motor close to the wear-resistant disk, the suction end of the compression chamber is communicated with the outlet of the heat exchange medium channel via the flow-through port, and the stationary scroll disk is provided with an exhaust hole communicated with the compression chamber.

28. The compressor according to any one of claims 22-27, characterized in that, The first tooth portions are multiple, the second tooth portions are multiple, each first tooth portion cooperates with its corresponding second tooth portion to define the compression chamber, and the multiple compression chambers are not communicated with each other.

29. The compressor according to claim 28, wherein The multiple first tooth portions are arranged at intervals along the circumferential direction of the moving scroll disk. The first end of each first tooth portion is close to the center of the moving scroll disk, and the second end of each first tooth portion is close to the edge of the moving scroll disk. From the first end of the first tooth portion to the second end of the first tooth portion, the first tooth portion extends in an involute shape; The multiple second tooth portions are arranged at intervals along the circumferential direction of the stationary scroll disk. The first end of each second tooth portion is close to the center of the stationary scroll disk, and the second end of each second tooth portion is close to the edge of the stationary scroll disk. From the first end of the second tooth portion to the second end of the second tooth portion, the second tooth portion extends in an involute shape.

30. A thermal management system, characterized in that, Comprising the compressor according to any one of claims 19-29.

31. A vehicle, characterized in that, Comprising the axial flux motor according to any one of claims 1-18; or, Comprising the compressor according to any one of claims 19-29; or, Comprising the thermal management system according to claim 3??

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