Axial flux permanent magnet motor based on high-efficiency heat dissipation of vapor chamber

Abstract

The invention provides an axial magnetic flux permanent magnet motor based on efficient heat dissipation of a vapor chamber, and belongs to the technical field of axial magnetic flux permanent magnet motors. The permanent magnet motor comprises a machine shell, a stator assembly, a rotor assembly, a bearing assembly and heat conduction epoxy resin, and the stator assembly, the rotor assembly, the bearing assembly and the heat conduction epoxy resin are arranged in the machine shell; the rotor assembly is connected with the machine shell through the bearing assembly, the heat conduction epoxy resin is arranged between the inner side face of the machine shell and the stator assembly, and a vapor chamber is further arranged in the machine shell and located between the inner bottom face of the machine shell and the stator assembly. The axial magnetic flux permanent magnet motor is based on a vapor chamber high-efficiency cooling structure, an efficient heat transfer path from a stator winding coil with high heating capacity to a machine shell with high heat dissipation capacity is established, and most of heat is quickly transferred to the machine shell from the vapor chamber and heat-conducting epoxy resin; in addition, based on the flat rotor iron core of the axial flux permanent magnet motor, the heat dissipation effect of the rotor is enhanced by using a natural fan during rotation.

Description

Technical Field

[0001] The invention relates to the technical field of axial flux permanent magnet motors, and in particular to an axial flux permanent magnet motor with high-efficiency heat dissipation based on a heat spreader. Background Art

[0002] In the field of robotics, as the demand for space efficiency increases, flat-design motors such as axial flux permanent magnet motors have gradually become the focus. This type of motor has attracted widespread attention due to its compact structure and high efficiency, and is particularly suitable for applications with limited installation space. However, as motors develop towards high power density, high torque density and lightweight, how to effectively manage the heat generated by motor operation has become one of the key challenges to improve its performance, reliability and life. When the motor is working, the heating phenomenon caused by internal losses is inevitable, which not only affects the efficiency of the motor, but also causes problems such as material aging and insulation performance degradation, thereby shortening the service life of the motor. Therefore, the development of an efficient heat dissipation system is crucial to maintaining the stable operation of the motor and extending its service life. Traditional heat dissipation methods, such as adding heat sinks or using fans for forced ventilation, can alleviate the temperature rise problem to a certain extent, but for modern motors that pursue high performance, these methods may no longer be sufficient.

[0003] In recent years, researchers have begun to explore ways to establish additional heat dissipation paths between key heat-generating components of motors and cooling housings to enhance heat dissipation. For example, thermally conductive insulating materials such as thermally conductive resins, thermally conductive adhesives, and thermally conductive ceramics are used to fill the gaps between the motor end windings and the housing to construct additional heat conduction paths. This method can effectively transfer heat from the heat source to the cooling surface, but its effectiveness is limited by the type and content of the filler used and the thermal conductivity of the matrix material itself. For high-performance motors that need to withstand extreme working conditions, existing materials and technologies may not provide adequate heat dissipation support.

[0004] In view of this, future research should focus on developing more efficient heat dissipation solutions to meet the heat dissipation requirements of the motor in high-power, high-torque operating modes. Summary of the invention

[0005] The object of the present invention is to provide an axial flux permanent magnet motor with high-efficiency heat dissipation based on a heat spreader, so as to solve the problem of poor heat dissipation effect of the existing axial flux permanent magnet motor in the prior art.

[0006] In order to achieve the above-mentioned purpose, an axial flux permanent magnet motor with high-efficiency heat dissipation based on a heat spreader is provided, the permanent magnet motor comprising: a casing, and a stator assembly, a rotor assembly, a bearing assembly and a thermally conductive epoxy resin arranged inside the casing, the stator assembly being arranged on the inner bottom surface of the casing, the rotor assembly being connected to the casing through the bearing assembly, the thermally conductive epoxy resin being arranged between the inner side surface of the casing and the stator assembly, and a heat spreader being further arranged inside the casing, the heat spreader being located between the inner bottom surface of the casing and the stator assembly; The heat spreader is annular and has two layers, the upper layer of the heat spreader is the evaporation end, the lower layer of the heat spreader is the condensation end, the steam chamber formed by the connection between the evaporation end and the condensation end is used to store liquid working fluid, and a plurality of liquid wicks are arranged between the evaporation end and the condensation end, the plurality of liquid wicks are evenly distributed along the circumferential direction of the heat spreader, capillary microgrooves are arranged in the steam chamber, the capillary microgrooves are arranged as spider web bionic structures, the capillary microgrooves are distributed circumferentially along the condensation end, the capillary microgrooves diverge from the center to the edge of the evaporation end, and steam channels are formed between the plurality of liquid wicks.

[0007] Furthermore, the absorbent core is a porous structure, and the appearance of the absorbent core is honeycomb-shaped; the absorbent core is arranged at the connection of adjacent capillary microchannels.

[0008] Furthermore, a placement groove is opened on the inner bottom surface of the casing, and the placement groove is filled with interface thermal conductive material; the heat spreader is placed in the placement groove, and the evaporation end of the heat spreader is glued to the stator assembly, and the condensation end of the heat spreader is in contact with the interface thermal conductive material in the placement groove.

[0009] Furthermore, the stator assembly includes: a stator core and an armature winding. The stator core is annular. The stator core back yoke of the stator core is bonded to the inner bottom surface of the casing and the evaporation end of the heat spreader. The stator core has a plurality of stator slots evenly opened along its circumferential direction and the armature winding is embedded in the stator slots.

[0010] Furthermore, an end cover is provided on the casing, and the end cover is detachably connected to the casing via fixing screws.

[0011] Furthermore, the bearing assembly includes: a first bearing chamber, a first bearing, a second bearing chamber and a second bearing, the first bearing chamber is opened on the end cover; the first bearing is arranged in the first bearing chamber; the second bearing chamber is opened on the casing; and the second bearing is arranged in the second bearing chamber.

[0012] Furthermore, the rotor assembly includes: a rotating shaft, a rotor core and a permanent magnet; the rotating shaft is connected to the casing through a first bearing and a second bearing; the rotor core is fixedly connected to the rotating shaft; a plurality of permanent magnets are adhered to the rotor core, and the permanent magnets are located between the rotor core and the stator core, and there is an air gap between the stator core and the permanent magnets.

[0013] Furthermore, a plurality of ribs are arranged on one side of the rotor core where the permanent magnets are arranged.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The axial flux permanent magnet motor of the present invention is based on the high-efficiency cooling structure of the heat spreader, and establishes an efficient heat transfer path from the stator winding coil with strong heat generation capacity to the casing with strong heat dissipation capacity, and quickly transfers most of the heat from the heat spreader and the thermally conductive epoxy resin to the casing. In addition, based on the flat rotor of the axial flux permanent magnet motor, the natural fan during rotation is used to enhance the heat dissipation effect of the rotor. Compared with the traditional permanent magnet motor that transfers heat through natural heat dissipation, the heat conduction path inside the motor is greatly shortened, the conduction heat dissipation coefficient of the motor stator is increased, and the heat transfer efficiency of the motor stator core, winding coil and rotor assembly is improved. While increasing the service life of the motor, the motor can pass a larger current and thus generate a larger power. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 It is a schematic diagram of the overall structure of the axial flux permanent magnet motor; Figure 2 It is a schematic diagram of the overall structure of the axial flux permanent magnet motor; Figure 3 It is the overall cross-sectional view of the axial flux permanent magnet motor; Figure 4 This is an exploded diagram of the axial flux permanent magnet motor structure; Figure 5 This is a schematic diagram of the heat dissipation principle of the heat spreader; Figure 6 It is the axial section of the heat spreader; Figure 7 It is the radial section of the heat spreader; Figure 8 is a structural schematic diagram of a stator assembly; Fig. 9 Schematic diagram of the structure of the stator slot in the stator assembly Fig.10 is a schematic diagram of the structure of the rotor assembly; In the figure: 1. casing; 10. end cover; 11. placement slot; 2. rotor core; 20. permanent magnet; 21. rotating shaft; 22. first bearing; 23. second bearing; 3. stator core; 30. armature winding; 31. stator core back yoke; 32. stator slot; 4. heat spreader; 40. evaporation end; 41. condensation end; 42. steam chamber; 43. wick; 44. capillary microgrooves; 45. steam channel; 5. thermally conductive epoxy resin; 6. air gap. DETAILED DESCRIPTION

[0017] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only embodiments of a part of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention. Unless otherwise specified, the technical means used in the embodiments are conventional means well known to those skilled in the art.

[0018] like Figures 1 to 10 As shown, an embodiment of the present invention provides an axial flux permanent magnet motor with high-efficiency heat dissipation based on a heat spreader, the permanent magnet motor comprising: a casing 1 and a stator assembly, a rotor assembly, a bearing assembly and a thermally conductive epoxy resin 5 arranged inside the casing 1, the stator assembly is arranged on the inner bottom surface of the casing 1, the rotor assembly is connected to the casing 1 through the bearing assembly, the thermally conductive epoxy resin 5 is arranged between the inner side surface of the casing 1 and the stator assembly, and a heat spreader 4 is also arranged in the casing 1, and the heat spreader 4 is located between the inner bottom surface of the casing 1 and the stator assembly.

[0019] In this way, the stator assembly in the permanent magnet motor has a strong heat generating capacity, and a heat spreader 4 is arranged between the inner bottom surface of the casing 1 and the stator assembly, and the efficient two-dimensional planar thermal conductivity of the heat spreader 4 is used to dissipate the heat on the stator core back yoke 31 side of the stator assembly; a thermally conductive epoxy resin 5 is used for potting between the stator assembly and the inner side surface of the casing 1, and the thermally conductive epoxy resin 5 is embedded in the space between the stator assembly and the inner side surface cavity of the casing 1, so that heat can be conducted from the armature winding 30 to the casing 1 more quickly; and then a plurality of ribs are arranged on the side of the rotor core 2 facing the stator assembly, which disturbs the internal airflow when the motor rotates, strengthens the air circulation, and then dissipates the heat of the stator assembly. Therefore, the stator assembly with a strong heat generating capacity in the motor is dissipated in multiple aspects, thereby greatly improving the heat dissipation efficiency of the stator assembly, thereby improving the overall heat dissipation efficiency of the motor.

[0020] like Figures 5 to 7As shown, the heat spreader 4 is annular, and the heat spreader 4 has an upper and lower layer structure, the upper layer of the heat spreader 4 is the evaporation end 40, and the lower layer of the heat spreader 4 is the condensation end 41. The steam chamber 42 formed by the docking of the evaporation end 40 and the condensation end 41 is used to store liquid working fluid, and a plurality of liquid wicks 43 are arranged between the evaporation end 40 and the condensation end 41. The plurality of liquid wicks 43 are evenly distributed along the circumferential direction of the heat spreader 4, and capillary microgrooves 44 are arranged in the steam chamber 42. The capillary microgrooves 44 are arranged as spider web bionic structures, and the capillary microgrooves 44 are distributed circumferentially along the condensation end 41. The capillary microgrooves 44 diverge from the center of the evaporation end 40 to the edge, and a steam channel 45 is formed between the plurality of liquid wicks 43. The steam generated at the evaporation end 40 can diffuse to the condensation end 41 through the steam channel 45 for condensation.

[0021] Specifically, the heat spreader 4 is generally made of copper material, and the interior of the heat spreader 4 is in a closed low vacuum state. The steam chamber 42 is formed by the evaporation end 40 and the condensation end 41 being connected. The steam chamber 42 is filled with a suitable liquid working medium. This liquid working medium has a low boiling point and is easy to volatilize. When the stator core 3 generates heat, the heat is transferred to the evaporation end 40 of the heat spreader 4. In the low vacuum cavity, the liquid working medium boils and vaporizes. Under the action of the pressure difference, the gas flows to the condensation end 41. The gas condenses and releases heat when it is cold, and then the heat is dissipated from the condensation end 41 of the heat spreader 4, and the condensed liquid is discharged under the gravity and the liquid absorption core 4. 3, and then the refluxed liquid working medium continues to evaporate at the evaporation end 40. The evaporation process continuously takes away the heat on the stator core 3, and then diffuses to the condensation end 41 through the steam channel 45 to condense again. This is repeated, and the heat on the stator core 3 can be continuously transferred out, thereby realizing the heat dissipation of the stator component with strong heat generation capacity in the motor, and by setting a plurality of liquid absorption cores 43, the liquid working medium condensed at the condensation end 41 can be accelerated to flow back to the evaporation end 40, thereby accelerating the circulation process of the liquid working medium, thereby accelerating the heat dissipation of the stator core 3 by the heat spreader 4.

[0022] In general, the liquid working medium evaporates to the wick 43 of the condensation end 41. Since the wick 43 around the condensation end 41 gradually becomes hydrophobic toward the central condensation zone, the vapor of the wick 43 flows to the capillary channel 44 faster. Due to the gravity of the liquid working medium and the capillary suction of the wick 43, the vapor working medium is liquefied and flows to the evaporation end 40 through the wick 43. Since the wick 43 around the evaporation end 40 gradually becomes hydrophilic toward the boiling zone, the liquid working medium can flow to the boiling zone through the microchannel of the wick 43 faster, thereby shortening the reflux distance of the working medium in the wick 43, accelerating the reflux speed of the liquid working medium, and improving the heat dissipation efficiency.

[0023] like Figures 5 to 7As shown, the absorbent core 43 is a porous structure, and the appearance of the absorbent core 43 is honeycomb-shaped; the absorbent core 43 is disposed at the connection between adjacent capillary microchannels 44 .

[0024] like Figure 5 As shown, by utilizing the capillary force of the wick 43, a capillary microgroove 44 is provided on the condensation end 41, and the wick 43 is provided at the connection between adjacent capillary microgrooves 44, thereby accelerating the rapid return of the liquid working medium in the wick at the condensation end 41 to the evaporation end 40, thereby accelerating the heat dissipation process of the heat spreader 4, thereby improving the heat dissipation efficiency of the motor.

[0025] like Figure 3 As shown, a placement groove 11 is provided on the inner bottom surface of the housing 1, and the placement groove 11 is filled with an interface thermal conductive material; a heat spreader 4 is placed in the placement groove 11, and the evaporation end 40 of the heat spreader 4 is glued to the stator assembly, and the condensation end 41 of the heat spreader 4 is in contact with the interface thermal conductive material in the placement groove 11. In this way, the interface thermal conductive material is filled in the gap between the placement groove 11 and the heat spreader 4, so that the effective contact area between the heat spreader 4 and the housing 1 is increased and fixed, thereby improving the heat dissipation effect of the condensation end 41.

[0026] like Figures 8 to 9 As shown, the stator assembly includes: a stator core 3 and an armature winding 30. The stator core 3 is annular. The stator core back yoke 31 of the stator core 3 is bonded to the inner bottom surface of the casing 1 and the evaporation end 40 of the heat spreader 4, and the stator core 3 is evenly provided with a plurality of stator slots 32 along its circumferential direction. The armature winding 30 is embedded in the stator slots 32.

[0027] like Figure 8 and Fig. 9 As shown, the stator core 3 is designed to be annular to meet the compact and flat appearance requirements of the axial flux permanent magnet motor. The stator core back yoke 31 is bonded to the inner bottom surface of the casing 1 and the evaporation end 40, and directly contacts the evaporation end 40 of the heat spreader 4. This arrangement enables the stator core 3 to quickly transfer heat to the heat spreader 4, and quickly dissipate heat to the environment through the efficient two-dimensional thermal conductivity of the heat spreader 4. In addition, a plurality of stator slots 32 are radially arranged on the inner circumference of the stator core 3, and the armature winding 30 is arranged in the stator slot 32 as a double-layer winding distributed left and right, which not only increases the effective number of turns of the winding, but also optimizes the current path, reduces resistance loss, and improves the power output capacity and efficiency of the motor.

[0028] like Figure 3 As shown, the housing 1 is provided with an end cover 10, and the end cover 10 is detachably connected to the housing 1 by fixing screws. In this way, it is convenient to assemble and repair the components in the housing 1.

[0029] like Figure 3The bearing assembly includes: a first bearing chamber, a first bearing 22, a second bearing chamber and a second bearing 23. The first bearing chamber is opened on the end cover 10; the first bearing is arranged in the first bearing chamber; the second bearing chamber is opened on the housing 1; and the second bearing 23 is arranged in the second bearing chamber. In this way, two bearing chambers are provided to stably support the two bearings.

[0030] like Figure 3 He Ru Fig.10 As shown, the rotor assembly includes: a rotating shaft 21, a rotor core 2 and a permanent magnet 20, the rotating shaft 21 is connected to the housing 1 through a first bearing 22 and a second bearing 23; the rotor core 2 is fixedly connected to the rotating shaft 21; a plurality of permanent magnets 20 are adhered to the rotor core 2, and the permanent magnets 20 are located between the rotor core 2 and the stator core 3, and an air gap 6 is formed between the stator core 3 and the permanent magnets 20. In this way, the rotating shaft 21 is stably connected to the casing 1 and the end cover 10 through two bearings, so that stable rotation can be achieved. The rotor core 2 is set to a circular ring shape, so that it is fixedly sleeved on the rotating shaft 21, and a permanent magnet 20 is pasted on the side of the rotor core 2 close to the stator core 3. Then, when current passes through the armature winding 30 on the stator core 3, a rotating magnetic field is generated. This rotating magnetic field interacts with the permanent magnet 20 pasted on the rotor core 2. The permanent magnet 20 is driven by torque under the action of the rotating magnetic field, so that the rotor core 2 starts to rotate. The rotor core 2 is fixedly connected to the rotating shaft 21, so the rotation of the rotor core 2 will drive the rotating shaft 21 to rotate together. In addition, there is an air gap 6 between the stator core 3 and the permanent magnet 20. On the one hand, the magnetic field generated by the stator can interact with the permanent magnet 20 on the rotor, thereby driving the rotor to rotate. On the other hand, it provides a natural convection space inside the motor, which helps to dissipate heat and reduce the risk of performance degradation or damage caused by overheating.

[0031] Furthermore, a plurality of ribs are provided on one side of the rotor core 2 where the permanent magnets 20 are provided. In this way, the ribs on the surface of the rotor core 2 disturb the internal airflow when the motor rotates, thereby enhancing air cooling and heat dissipation.

[0032] Implementation process: When in use, the armature winding 30 is energized. When the current passes through the armature winding 30 on the stator core 3, a rotating magnetic field is generated. This rotating magnetic field interacts with the permanent magnet 20 attached to the rotor core 2. The permanent magnet 20 is driven by torque under the action of the rotating magnetic field, causing the rotor core 2 to start rotating. The rotor core 2 is fixedly sleeved on the shaft 21, so the rotation of the rotor core 2 will drive the shaft 21 to rotate together. When the armature winding 30 is energized, heat is generated. A heat spreader 4 is provided between the stator core back yoke 31 and the casing 1, and then the efficient two-dimensional planar thermal conductivity of the heat spreader 4 is used to set a heat exchange path between the stator core 3 and the external environment. The armature winding 30 is in direct contact with the stator core 3, and the heat generated by the armature winding 30 can be The heat is transferred to the stator core 3 through the contact part, and then transferred to the outside of the motor by the heat spreader 4 arranged on the stator core 3, thereby accelerating the heat dissipation of the armature winding 30. At the same time, the stator core 3 and the inner side cavity of the casing 1 are encapsulated with a thermally conductive epoxy resin 5 to shorten the heat transfer path and conduct the residual heat generated by the armature winding 30 through the casing 1. In addition, a plurality of ribs are arranged on one side of the permanent magnet 20 of the rotor core 2, so that the internal airflow is disturbed when the motor rotates, thereby enhancing the air cooling and heat dissipation. Therefore, the stator core 3 in the motor forms multiple heat dissipation pathways, thereby greatly improving the heat dissipation efficiency of the stator assembly, thereby improving the overall heat dissipation efficiency of the motor, so that the inside of the motor is always maintained in a relatively low temperature environment, thereby increasing the service life of the motor.

[0033] It should be noted that the specific models and specifications of the permanent magnet 20, the first bearing 22 and the second bearing 23 need to be selected and determined according to the actual specifications of the device, so they will not be described in detail.

[0034] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An axial flux permanent magnet motor with high-efficiency heat dissipation based on a heat spreader, the permanent magnet motor comprising: A casing (1) and a stator assembly, a rotor assembly, a bearing assembly and a heat-conducting epoxy resin (5) arranged inside the casing (1), wherein the stator assembly is arranged on the inner bottom surface of the casing (1), the rotor assembly is connected to the casing (1) via the bearing assembly, and the heat-conducting epoxy resin (5) is arranged between the inner side surface of the casing (1) and the stator assembly, and is characterized in that a heat spreader (4) is also arranged inside the casing (1), and the heat spreader (4) is located between the inner bottom surface of the casing (1) and the stator assembly; The soaking plate (4) is annular and has an upper and lower layer structure. The upper layer of the soaking plate (4) is an evaporation end (40), and the lower layer of the soaking plate (4) is a condensation end (41). A steam chamber (42) formed by the butt connection of the evaporation end (40) and the condensation end (41) is used to store liquid working fluid. A plurality of liquid wicks (43) are arranged between the evaporation end (40) and the condensation end (41). The plurality of liquid wicks (43) are evenly distributed along the circumferential direction of the soaking plate (4). Capillary microgrooves (44) are arranged in the steam chamber (42). The capillary microgrooves (44) are arranged in a spider web bionic structure. The capillary microgrooves (44) are distributed along the circumference of the condensation end (41). The capillary microgrooves (44) diverge from the center of the evaporation end (40) to the edge. A steam channel (45) is formed between the plurality of liquid wicks (43).

2. The axial flux permanent magnet motor with high-efficiency heat dissipation based on a vapor chamber according to claim 1, characterized in that: The liquid absorbent core (43) is a porous structure, and the appearance of the liquid absorbent core (43) is honeycomb-shaped; The liquid absorption core (43) is arranged at the connection between adjacent capillary microchannels (44).

3. The axial flux permanent magnet motor with high-efficiency heat dissipation based on a heat spreader according to claim 1, characterized in that: A placement groove (11) is provided on the inner bottom surface of the casing (1), and the placement groove (11) is filled with an interface thermal conductive material; a heat spreader (4) is placed in the placement groove (11), and an evaporation end (40) of the heat spreader (4) is glued to the stator assembly, and a condensation end (41) of the heat spreader (4) contacts the interface thermal conductive material in the placement groove (11).

4. The axial flux permanent magnet motor with high-efficiency heat dissipation based on a heat spreader according to claim 1, characterized in that: The stator assembly comprises: A stator core (3), wherein the stator core (3) is annular, a stator core back yoke (31) of the stator core (3) is bonded to the inner bottom surface of the casing (1) and the evaporation end (40) of the heat spreader (4), and the stator core (3) is evenly provided with a plurality of stator slots (32) along its circumferential direction; An armature winding (30) is embedded in a stator slot (32).

5. The axial flux permanent magnet motor with high-efficiency heat dissipation based on a vapor chamber according to claim 1, characterized in that: An end cover (10) is provided on the casing (1), and the end cover (10) is detachably connected to the casing (1) via fixing screws.

6. The axial flux permanent magnet motor with high-efficiency heat dissipation based on a vapor chamber according to claim 5, characterized in that: The bearing assembly comprises: A first bearing chamber, wherein the first bearing chamber is opened on the end cover (10); A first bearing (22), the first bearing being arranged in a first bearing chamber; a second bearing chamber, the second bearing chamber being disposed on the housing (1); A second bearing (23), wherein the second bearing (23) is arranged in the second bearing chamber.

7. The axial flux permanent magnet motor with high-efficiency heat dissipation based on a vapor chamber according to claim 5, characterized in that: The rotor assembly comprises: A rotating shaft (21), wherein the rotating shaft (21) is connected to the housing (1) via a first bearing (22) and a second bearing (23); A rotor core (2), wherein the rotor core (2) is fixedly connected to the rotating shaft (21); Permanent magnets (20), wherein a plurality of the permanent magnets (20) are adhered to the rotor core (2), and the permanent magnets (20) are located between the rotor core (2) and the stator core (3), and an air gap (6) is formed between the stator core (3) and the permanent magnets (20).

8. The axial flux permanent magnet motor with high-efficiency heat dissipation based on a vapor chamber according to claim 7, characterized in that: A plurality of ribs are arranged on one side of the rotor core (2) where the permanent magnet (20) is arranged.

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