Axial flux motor

Abstract

The utility model discloses an axial magnetic flux motor, comprising a motor housing; the transmission part comprises a stator, a rotor and a motor shaft which are installed in the motor shell, a liquid cooling channel is formed between the stator and the motor shell, and the two ends of the motor shaft extend to the outside from the two axial ends of the motor shell respectively; the cooling system is positioned outside the motor shell and is mounted at one end part of the motor shell; wherein the cooling system is in transmission connection with one end of the motor shaft, the end part of the motor shell is provided with a butt joint channel, and the cooling system is connected with the liquid cooling channel through the butt joint channel. By adopting the structure, the overall size of the motor can be effectively reduced, the installation is convenient, and the cooling system does not need to be externally connected to an external power source.

Description

TECHNICAL FIELD

[0001] The utility model relates to motor technical field, especially a kind of axial flux motor. BACKGROUND

[0002] During the operation of axial flux motor, heat will be generated inside the stator and transferred outward. When the motor's heat dissipation capacity is insufficient, the motor temperature will be too high, causing damage or burnout of the motor. In order to make the motor run safely and reliably, the motor needs to be designed with a cooling structure for heat dissipation.

[0003] The existing motor usually includes a motor shell and a transmission part installed in the motor shell. The transmission part includes a stator, a rotor and a motor shaft. One end of the motor shaft extends from the end of the motor shell to the outside to serve as a load end for interfacing with an external load. A closed liquid cooling channel is formed between the motor shell and the stator. A cooling system is provided outside the motor shell and is adapted to interface with the liquid cooling channel to circulate cooling liquid into the liquid cooling channel to absorb heat from the stator. However, the existing cooling system needs to be connected to the liquid cooling channel through external pipelines, and the cooling system needs to be electrically connected to an external power source, resulting in a large and space-consuming overall motor system structure.

[0004] Therefore, it is necessary to improve the prior art to overcome the defects in the prior art. INVENTION CONTENTS

[0005] The utility model aims at providing an axial flux motor with a cooling system. The motor has a compact overall structure, is easy to install, and the cooling system does not need to be connected to an external power source.

[0006] The utility model aims at providing an axial flux motor with a cooling system. The motor has a compact overall structure, is easy to install, and the cooling system does not need to be connected to an external power source.

[0007] The motor shell;

[0008] The transmission part includes a stator, a rotor and a motor shaft installed in the motor shell. A liquid cooling channel is formed between the stator and the motor shell. The two ends of the motor shaft extend from the two axial ends of the motor shell to the outside.

[0009] The cooling system is located outside the motor shell and is installed at one end of the motor shell.

[0010] The cooling system and one end of the motor shaft are drivingly connected. An interfacing channel is provided in the end of the motor shell. The cooling system is connected to the liquid cooling channel through the interfacing channel.

[0011] Further, the motor shell includes:

[0012] A stator housing for accommodating the stator, the stator housing and the stator forming the liquid cooling channel therebetween, the stator housing being provided with a stator liquid outlet and a stator liquid inlet communicating with the liquid cooling channel;

[0013] An end cover covering an axial end surface of the stator housing, the end cover and the stator housing forming a mounting cavity for mounting the rotor therebetween;

[0014] The cooling system is mounted on an outer end surface of the end cover away from the stator housing, and the docking channel is formed in the end cover and docks with the stator liquid outlet and the stator liquid inlet.

[0015] Further, the stator liquid outlet and the stator liquid inlet are recessed inward from the end surface of the stator housing, and the end cover is adapted to cover the stator liquid outlet and the stator liquid inlet.

[0016] Further, the cooling system comprises a pump body fixed to the end cover and in transmission connection with one end of the motor shaft, the docking channel comprises a first channel docking with the stator liquid outlet and a second channel docking with the stator liquid inlet, and the pump body is in communication between the first channel and the second channel.

[0017] Further, the pump body comprises:

[0018] A pump housing fixed to the end cover in a detachable manner, the pump housing having an open side;

[0019] An inner rotor mounted in the pump housing from the open side;

[0020] An outer rotor mounted in the pump housing from the open side and engaged with the periphery of the inner rotor;

[0021] The inner rotor is coaxially connected with the motor shaft, and the end cover is adapted to cover the open side and axially limit the inner rotor and the outer rotor.

[0022] Further, the end cover is recessed inward from the outer end surface to form a receiving groove, and the pump housing is received in the receiving groove.

[0023] Further, the cooling system further comprises a heat exchanger fixed to the end cover, the docking channel comprises a third channel, the pump body is in communication between the first channel and the third channel, and the heat exchanger is in communication between the second channel and the third channel.

[0024] Further, the first channel, the second channel and the third channel each comprise:

[0025] A channel body formed along the radial direction of the motor;

[0026] An inlet hole is connected to one end of the channel body and extends along the axial direction of the motor to the end face of the end cap;

[0027] An outlet hole is connected to the other end of the channel body and extends along the axial direction of the motor to the end face of the end cap;

[0028] The liquid inlet and the liquid outlet are adapted to be connected to the liquid cooling channel and / or the cooling system.

[0029] Furthermore, the liquid inlet of the first channel extends to the inner end face of the end cap and corresponds to the liquid outlet of the stator, and the liquid outlet of the first channel extends to the outer end face of the end cap and corresponds to the inlet of the pump body.

[0030] The inlet and outlet of the third channel both extend to the outer end face of the end cap, corresponding to the outlet of the pump body and the inlet of the heat exchanger, respectively.

[0031] The liquid inlet of the second channel extends to the outer end face of the end cap to correspond to the outlet of the heat exchanger, and the liquid outlet of the second channel extends to the inner end face of the end cap to correspond to the stator liquid inlet.

[0032] Furthermore, the projections of the first channel, the second channel, and the third channel along the motor axis do not overlap.

[0033] Compared with the prior art, the present invention has the following advantages: The present invention adopts the above-mentioned structure, in which a docking channel is directly formed at the end of the motor housing. The cooling system and the liquid cooling channel are connected through the docking channel, eliminating the need for external pipelines. This effectively reduces the overall size of the motor, making the motor structure more compact and reducing space occupation. Furthermore, the cooling system can be connected to the docking channel simultaneously with its installation at a preset position at the end of the motor housing, simplifying the installation process. In addition, both ends of the motor shaft extend to the outside, making one end the load end and the other end a drive connection to the cooling system. The cooling system does not need to be electrically connected to an external power source, further simplifying the motor structure and improving its installation adaptability. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the structure of the axial flux motor of this utility model.

[0035] Figure 2 yes Figure 1 A schematic diagram of the structure after removing the pump body.

[0036] Figure 3 This is a schematic diagram of the structure of the end cap of this utility model.

[0037] Figure 4 is a sectional view of the end cover. Figure 3

[0038] Figure 5 is a flow path diagram of the cooling liquid in the end cover in the utility model.

[0039] Figure 6 is a structural diagram of the pump body in the utility model.

[0040] Figure 7 is an exploded structural diagram of the pump body in the utility model.

[0041] Explanation of reference signs:

[0042] 100, motor shell; 110, stator housing; 120, end cover; 121, first channel; 122, second channel; 123, third channel; 124, channel main body; 125, liquid inlet hole; 126, liquid outlet hole; 127, plugging piece; 200, cooling system; 210, pump body; 211, pump shell; 2111, open side; 212, inner rotor; 213, outer rotor; 220, heat exchanger; 310, motor shaft. DETAILED DESCRIPTION

[0043] In order to make the above objectives, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the drawings. It can be understood that the specific embodiments described herein are only used to explain the present application, but not to limit the present application. In addition, it should be noted that, in order to facilitate the description, only the parts related to the present application are shown in the drawings, and not all the structures. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0044] The terms "comprising" and "having" and any variations thereof in the present application are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but optionally further comprises steps or units not listed, or optionally further comprises other steps or units inherent to these processes, methods, products or devices.

[0045] In this paper, the "embodiment" means that the specific features, structures or characteristics described in conjunction with the embodiment can be included in at least one embodiment of the present application. The phrase appears at various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment to other embodiments. Those skilled in the art explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0046] Please refer to​Figure 1 and Figure 2 As shown in the drawings, the axial flux motor corresponding to a preferred embodiment of the utility model, including motor shell 100, transmission part (not shown in the drawing) and cooling system 200.Transmission part includes the stator installed in motor shell 100, rotor and motor shaft 310, the stator and motor shell 100 between the liquid cooling channel (not shown in the drawing) is formed, motor shaft 310 coaxially passes in the stator and rotor, and the two ends of motor shaft 310 are respectively from the axial two end portions of motor shell 100 to the outside.Cooling system 200 is located outside motor shell 100, and is installed in one end portion of motor shell 100.The end portion of motor shell 100 is provided with a docking channel, and the cooling system 200 is connected with the liquid cooling channel through the docking channel.Cooling system 200 and one end of motor shaft 310 are drivingly connected, and the other end of motor shaft 310 is a load end to be connected with an external load, and when the motor drives the load to run, it can also drive the cooling system 200 to run.

[0047] The utility model adopts the above structure, and the end portion of motor shell 100 is directly provided with a docking channel, and the cooling system 200 and the liquid cooling channel are connected through the docking channel, without the need to set up external pipeline, which can effectively reduce the overall volume of the motor, the motor structure is more compact, reduces the occupied space, and when the cooling system 200 is installed in the preset position of the end portion of motor shell 100, the docking of the cooling system 200 and the docking channel can be realized, and the installation process of the cooling system 200 is simplified.In addition, the two ends of motor shaft 310 extend to the outside, so that one end is a load end, and the other end can be drivingly connected with the cooling system 200, and the cooling system 200 does not need to be electrically connected with an external power source, which further simplifies the motor structure and improves the installation adaptability of the motor.

[0048] Further, the motor shell 100 includes a stator housing 110 and an end cover 120.The stator is accommodated in the stator housing 110 to form a stator assembly with the stator housing 110, and the liquid cooling channel is formed between the stator housing 110 and the stator.A stator liquid outlet (not shown in the drawing) and a stator liquid inlet (not shown in the drawing) are provided on the stator housing 110 and connected with the liquid cooling channel, and the stator liquid outlet and the stator liquid inlet are connected with the docking channel to facilitate the circulation of the cooling liquid into the liquid cooling channel by the cooling system 200.The cooling liquid includes but is not limited to cooling oil, cooling water, etc.The stator assembly with the liquid cooling channel is the existing structure, and the utility model will not be described here.

[0049] The end cover 120 is arranged on the end surface of the stator housing 110, and the end surface of the stator housing 110 is adapted to be in contact with the inner end surface of the end cover 120, and the end cover 120 and the stator housing 110 are detachably fastened by the threaded fasteners. The end cover 120 and the stator housing 110 cooperatively form a closed mounting cavity, and the rotor is mounted in the mounting cavity. The mounting cavity and the liquid cooling passage are not in communication, so that the cooling liquid cannot flow into the mounting cavity and affect the rotor. The cooling system 200 is mounted on the outer end surface of the end cover 120, and the interface passage is arranged in the interior of the end cover 120. The inner end surface of the end cover 120 refers to the end surface of the end cover 120 facing the stator housing 110, and the outer end surface refers to the end surface of the end cover 120 facing away from the stator housing 110.

[0050] In an embodiment, the mounting cavity is recessed inwardly from the end surface of the stator housing 110, and the end cover 120 is adapted to cover the mounting cavity. Preferably, in this embodiment, the mounting cavity is recessed inwardly from the inner end surface of the end cover 120, and the end surface of the stator housing 110 is adapted to cover the mounting cavity, and the inner end surface of the end cover 120 is in contact with the edge of the end surface of the stator housing 110. During the installation of the motor, the rotor can be first mounted in the end cover 120 to form a rotor assembly with the end cover 120, and the rotor assembly and the stator assembly can be first assembled separately, and then the assembled rotor assembly and the stator assembly are reassembled, so that the installation of the motor is more convenient.

[0051] Preferably, the stator liquid outlet and the stator liquid inlet are both recessed inwardly from the end surface of the stator housing 110, and the inner end surface of the end cover 120 is adapted to cover the stator liquid outlet and the stator liquid inlet, so that the interface passage formed in the end cover 120 can be directly and tightly connected with the stator liquid outlet and the stator liquid inlet, which will be described in detail below. Due to the structure of the stator assembly, the stator liquid outlet and the stator liquid inlet are usually arranged at the position close to the edge of the end surface of the stator housing 110, so that even if the inner end surface of the end cover 120 is effectively in contact with the end surface of the stator housing 110 due to the formation of the mounting cavity in the end cover 120, it can still well cover the stator liquid outlet and the stator liquid inlet.

[0052] In an embodiment, the motor is a single-stator single-rotor axial flux motor, and at this time the number of end covers 120 can be one, which is mounted on one end surface of the stator housing 110, so that the motor forms a mounting cavity for mounting the rotor. In another embodiment, the motor can also be a single-stator double-rotor axial flux motor, and at this time the number of end covers 120 can be two, which are respectively mounted on different end surfaces of the stator housing 110, thereby forming two mounting cavities for accommodating different rotors, and the cooling system 200 is arranged on the end cover 120 away from the load end of the motor shaft 310.

[0053] Further, with reference to Figure 1 , Figures 3 to 5As shown, the cooling system 200 comprises a pump body 210 fixed to the end cover 120 and in driving connection with one end of the motor shaft 310, the interfacing channels comprise a first channel 121 interfacing with the stator outlet and a second channel 122 interfacing with the stator inlet, and the pump body 210 is in communication between the first channel 121 and the second channel 122. The pump body 210 can provide power to the cooling liquid to pump the cooling liquid with higher temperature after heat absorption out of the liquid cooling channel from the stator outlet and to pump the cooling liquid with lower temperature after heat dissipation back into the liquid cooling channel from the stator inlet.

[0054] In an embodiment, the cooling liquid can be naturally cooled in the first channel 121 and the second channel 122, however, the natural cooling efficiency is low and it is difficult to sufficiently cool the cooling liquid. As a preferred embodiment, the cooling system 200 further comprises a heat exchanger 220 fixed to the end cover 120, and correspondingly, the interfacing channels further comprise a third channel 123, and the pump body 210 is in communication between the first channel 121 and the third channel 123, and the heat exchanger 220 is in communication between the second channel 122 and the third channel 123.

[0055] Specifically, the pump body 210 and the heat exchanger 220 each have an inlet and an outlet, two ends of the first channel 121 are respectively connected with the stator outlet and the inlet of the pump body 210, two ends of the second channel 122 are respectively connected with the stator inlet and the outlet of the heat exchanger 220, and two ends of the third channel 123 are respectively connected with the outlet of the pump body 210 and the inlet of the heat exchanger 220. When the cooling system 200 is in operation, the motor shaft 310 drives the pump body 210 to rotate, and the cooling liquid in the liquid cooling channel flows into the pump body 210 through the stator outlet and the first channel 121 in sequence, the pump body 210 can pressurize the cooling liquid flowing into it and pump it into the third channel 123, and the cooling liquid flows into the heat exchanger 220 along the third channel 123, the heat exchanger 220 can heat exchange the cooling liquid, and the cooling liquid after heat exchange flows into the liquid cooling channel through the second channel 122 and the stator inlet in sequence.

[0056] Further, the end cover 120 has a certain thickness in the axial direction of the motor, so that the first channel 121, the second channel 122 and the third channel 123 are formed inside the end cover 120, and the projections of the first channel 121, the second channel 122 and the third channel 123 in the axial direction do not overlap each other, so that the first channel 121, the second channel 122 and the third channel 123 can be in the same plane while being limited by each other, which is beneficial to reduce the thickness of the end cover 120.

[0057] The first channel 121, the second channel 122 and the third channel 123 each comprise a channel body 124, a liquid inlet hole 125 connected to one end of the channel body 124 and a liquid outlet hole 126 connected to the other end of the channel body 124, the channel body 124 is opened along the radial direction of the motor, and the liquid inlet hole 125 and the liquid outlet hole 126 are opened along the axial direction of the motor, so as to facilitate the processing and forming of the channel. The channel body 124 is recessed inward from the side wall of the end cover 120, the liquid inlet hole 125 and the liquid outlet hole 126 are recessed inward from the end face of the end cover 120, and the recessed ends thereof are communicated with the channel body 124, so as to be connected with the liquid cooling channel and the cooling system 200.

[0058] Specifically, the liquid inlet hole 125 of the first channel 121 extends to the inner end face of the end cover 120 and corresponds to the stator liquid outlet, and when the inner end face of the end cover 120 is attached to the end face of the stator shell 110, the liquid inlet hole 125 can be tightly connected with the stator liquid outlet. The liquid outlet hole 126 of the first channel 121 extends to the outer end face of the end cover 120 and corresponds to the inlet of the pump body 210, so that the inlet of the pump body 210 mounted on the outer end face of the end cover 120 can be tightly connected with the liquid outlet hole 126.

[0059] The liquid inlet hole 125 and the liquid outlet hole 126 of the third channel 123 each extend to the outer end face of the end cover 120, so as to correspond to the outlet of the pump body 210 and the inlet of the heat exchanger 220 respectively, so that the outlet of the pump body 210 is tightly connected with the liquid inlet hole 125, and the inlet of the heat exchanger 220 is tightly connected with the liquid outlet hole 126.

[0060] The liquid inlet hole 125 of the second channel 122 extends to the outer end face of the end cover 120, so as to correspond to the outlet of the heat exchanger 220, so that the outlet of the heat exchanger 220 is tightly connected with the liquid inlet hole 125. The liquid outlet hole 126 of the second channel 122 extends to the inner end face of the end cover 120, so as to correspond to the stator liquid inlet, and when the inner end face of the end cover 120 is attached to the end face of the stator shell 110, the liquid outlet hole 126 can be tightly connected with the stator liquid inlet.

[0061] By adopting the first channel 121, the second channel 122 and the third channel 123 with the above structure, when the motor is installed, no additional external pipeline is required between the liquid cooling channel and the connecting channel, and between the connecting channel and the cooling system 200. Preferably, sealing members can be arranged between the cooling system 200 and the connecting channel, and between the liquid cooling channel and the connecting channel, so as to improve the sealing effect after connection.

[0062] In addition, the channel body 124 is formed by opening the side wall of the end cover 120, so that the channel body 124 forms an open end. Preferably, the open end of the channel body 124 is provided with a sealing member 127 to prevent leakage of the channel body 124. The sealing member 127 includes but is not limited to a sealing plug, a bolt, etc. to close the open end. Preferably, the open end can be connected with a pressure relief valve (not shown) as needed. Under normal circumstances, the pressure relief valve can block the open end. When the pressure applied by the pump body 210 exceeds the preset value, the pressure relief valve can relieve the pressure inside the channel, thereby protecting the cooling system 200.

[0063] Further, the pump body 210 and the heat exchanger 220 are fastened to the end cover 120 by screws, ensuring that the inlet and outlet of the pump body 210 and the heat exchanger 220 are tightly attached to the liquid inlet hole 125 and the liquid outlet hole 126. The heat exchanger 220 is a conventional heat exchange structure, which will not be described here. The pump body 210 can specifically adopt an inner-outer rotor type mechanical pump, which has a small structure and good transmission effect.

[0064] Referring to FIGS. 1, 2 and 3, Figure 6 and Figure 7 The pump body 210 includes a pump shell 211, an inner rotor 212 and an outer rotor 213. The pump shell 211 is detachably fixed to the end cover 120 and has an open side 2111. The inner rotor 212 and the outer rotor 213 are both installed in the pump shell 211 from the open side 2111, and the outer rotor 213 is engaged around the inner rotor 212. The inner rotor 212 is coaxially connected with the motor shaft 310 and cannot rotate relative to the motor shaft 310 in the axial direction, which can be achieved by setting a spline. The end cover 120 is suitable for covering the open side 2111 and axially limiting the inner rotor 212 and the outer rotor 213. By adopting the above structure, the pump body 210 does not need to be provided with an additional cover plate to close the pump shell 211. Instead, the end cover 120 cooperates with the pump shell 211 to form a closed cavity for accommodating the inner rotor 212 and the outer rotor 213, thereby effectively simplifying the structure of the pump shell 211 and making the connection between the pump body 210 and the end cover 120 more compact. A sealing ring can be arranged at the connection between the pump shell 211 and the end cover 120, thereby ensuring the sealing of the pump shell 211. The inlet and outlet of the pump body 210 can be formed in the end cover 120 to facilitate the butt joint with the butt joint channel.

[0065] Since the pump body 210 is relatively fragile, it protrudes relative to the end cover 120 after being installed on the end cover 120, and is easily damaged during the subsequent assembly of the motor. As a preferred embodiment, the end cover 120 is recessed inward from the outer end face to form a receiving groove (not shown). The inner profile of the receiving groove is matched with the outer profile of the pump shell 211, and the pump shell 211 is accommodated in the receiving groove, thereby avoiding the protrusion of the pump body 210 relative to the end cover 120, effectively protecting the pump body 210, and making the motor installation more adaptable.

[0066] The above merely describes the embodiments of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation, or direct or indirect application in other related technical fields, which is made according to the content of the present application and the accompanying drawings, is also included in the patent protection scope of the present application.

Claims

1. An axial flux motor, characterized in that, include: Motor housing (100); The transmission part includes a stator, a rotor and a motor shaft (310) installed in the motor housing (100). A liquid cooling channel is formed between the stator and the motor housing (100). The two ends of the motor shaft (310) extend from the two ends of the motor housing (100) in the axial direction to the outside. A cooling system (200) is located outside the motor housing (100) and is installed at one end of the motor housing (100); The cooling system (200) is connected to one end of the motor shaft (310) via a drive connection. The end of the motor housing (100) is provided with a docking channel, and the cooling system (200) is connected to the liquid cooling channel via the docking channel.

2. The axial flux motor as described in claim 1, characterized in that, The motor housing (100) includes: A stator housing (110) is used to house the stator. A liquid cooling channel is formed between the stator housing (110) and the stator. A stator liquid outlet and a stator liquid inlet communicating with the liquid cooling channel are provided on the stator housing (110). An end cover (120) is provided on the axial end face of the stator housing (110), and a mounting cavity for mounting the rotor is formed between the end cover (120) and the stator housing (110); The cooling system (200) is installed on the outer end face of the end cover (120) away from the stator housing (110), and the docking channel is opened inside the end cover (120) and docks with the stator liquid outlet and the stator liquid inlet.

3. The axial flux motor as described in claim 2, characterized in that, The stator outlet and the stator inlet are recessed inward from the end face of the stator housing (110), and the end cap (120) is adapted to cover the stator outlet and the stator inlet.

4. The axial flux motor as described in claim 2, characterized in that, The cooling system (200) includes a pump body (210) fixed to the end cover (120) and drivenly connected to one end of the motor shaft (310). The docking channel includes a first channel (121) docking with the stator outlet and a second channel (122) docking with the stator inlet. The pump body (210) is connected between the first channel (121) and the second channel (122).

5. The axial flux motor as described in claim 4, characterized in that, The pump body (210) includes: Pump housing (211), detachably fixed to the end cap (120), the pump housing (211) having an open side (2111); An inner rotor (212) is installed inside the pump casing (211) from the open side (2111); The outer rotor (213) is installed inside the pump casing (211) from the open side (2111) and meshes with the periphery of the inner rotor (212); The inner rotor (212) is coaxially connected to the motor shaft (310), and the end cover (120) is adapted to cover the open side (2111) and axially limit the inner rotor (212) and the outer rotor (213).

6. The axial flux motor as described in claim 5, characterized in that, The end cap (120) is recessed inward from the outer end to form a receiving groove, and the pump housing (211) is received in the receiving groove.

7. The axial flux motor as described in claim 4, characterized in that, The cooling system (200) also includes a heat exchanger (220) fixed to the end cap (120), the docking channel includes a third channel (123), the pump body (210) is connected between the first channel (121) and the third channel (123), and the heat exchanger (220) is connected between the second channel (122) and the third channel (123).

8. The axial flux motor as described in claim 7, characterized in that, The first channel (121), the second channel (122), and the third channel (123) each include: The main body of the channel (124) is formed along the radial direction of the motor; An inlet hole (125) is connected to one end of the channel body (124) and extends along the axial direction of the motor to the end face of the end cap (120); An outlet hole (126) is connected to the other end of the channel body (124) and extends along the axial direction of the motor to the end face of the end cap (120); The liquid inlet (125) and the liquid outlet (126) are adapted to be connected to the liquid cooling channel and / or the cooling system (200).

9. The axial flux motor as described in claim 8, characterized in that, The inlet hole (125) of the first channel (121) extends to the inner end face of the end cap (120) and corresponds to the stator outlet. The outlet hole (126) of the first channel (121) extends to the outer end face of the end cap (120) and corresponds to the inlet of the pump body (210). The inlet (125) and outlet (126) of the third channel (123) both extend to the outer end face of the end cap (120) to correspond to the outlet of the pump body (210) and the inlet of the heat exchanger (220), respectively. The liquid inlet (125) of the second channel (122) extends to the outer end face of the end cap (120) to correspond to the outlet of the heat exchanger (220), and the liquid outlet (126) of the second channel (122) extends to the inner end face of the end cap (120) to correspond to the stator liquid inlet.

10. The axial flux motor as described in claim 7, characterized in that, The projections of the first channel (121), the second channel (122), and the third channel (123) along the motor axis do not overlap.

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