Axial motor, heat dissipation system and flight device

Abstract

The utility model discloses an axial motor, a heat dissipation system and a flight device, the axial motor is applied to the heat dissipation system and the flight device, the axial motor comprises a stator assembly, the stator assembly comprises a support main body and a separator plate assembly, and the support main body is provided with a shaft hole and an annular groove communicated with the shaft hole; the partition plate assembly is located in the shaft hole, and at least part of the partition plate assembly is embedded in the annular groove; the space defined by the partition plate assembly and the inner wall of the annular groove forms a liquid flowing channel, and at least part of the liquid flowing channel extends in the radial direction of the annular groove. The cooling liquid is circularly injected into the liquid flowing channel, so that redundant heat generated by the operation of the stator assembly can be effectively taken away, the temperature of the stator assembly is reduced, the heat loss of each operation part of the axial motor is reduced, and the service life of the axial motor is further prolonged.

Description

Technical Field

[0001] This utility model relates to the field of axial motor technology, and in particular to an axial motor, a heat dissipation system, and a flight device. Background Technology

[0002] Since axial motors generate a lot of heat during operation, if heat dissipation is not smooth, the excess heat can cause thermal damage to the axial motor, resulting in reduced operating efficiency, deterioration of insulation performance, and even failure and shutdown. Therefore, a structure with good heat dissipation is needed to ensure that the axial motor can dissipate heat smoothly during operation. Utility Model Content

[0003] In view of the above, based on the aforementioned technical problems, this application provides an axial motor, a heat dissipation system, and a flight device, wherein the axial motor is applied to the heat dissipation system or the flight device.

[0004] The first aspect of this application provides an axial motor, which includes a stator assembly. The stator assembly includes a support body and a partition assembly. The support body has a shaft hole and an annular groove communicating with the shaft hole. The partition assembly is located in the shaft hole, and at least a portion of the partition assembly is embedded in the annular groove. The space enclosed by the partition assembly and the inner wall of the annular groove forms a liquid flow channel, and at least a portion of the liquid flow channel extends in the radial direction of the annular groove.

[0005] In the axial motor of this application, the stator assembly generates a significant amount of redundant heat due to the energization of the coils. Therefore, the stator assembly is the primary source of redundant heat in the axial motor. This application addresses this by providing an annular groove on the inner side of the support body and correspondingly installing a baffle assembly to constrain the flow path of the refrigerant together with the annular groove. This further constrains the flow path of the refrigerant, allowing it to better absorb the redundant heat generated by the stator assembly. As the refrigerant circulates, it effectively carries away the redundant heat generated by the stator assembly, thereby reducing the temperature of the stator assembly, reducing heat loss in the various working components of the axial motor, and ultimately extending the service life of the axial motor.

[0006] The second aspect of this application provides a heat dissipation system, wherein the heat dissipation system in the second aspect includes the axial motor mentioned in the first aspect of this application.

[0007] A third aspect of this application provides a flight device, wherein the flight device in the third aspect includes the axial motor mentioned in the first aspect of this application.

[0008] Since the heat dissipation system mentioned in the second aspect of this application and the flight device mentioned in the third aspect both include the axial motor in the first aspect of this application, all the beneficial effects of the second and third aspects of this application, including the first aspect of this application, will not be repeated here. Attached Figure Description

[0009] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0010] Figure 1 This is a simplified structural diagram of the flight device in one embodiment of this application;

[0011] Figure 2 for Figure 1 A simplified diagram of the structural components of a heat dissipation system;

[0012] Figure 3 for Figure 2 A structural diagram of an axial motor;

[0013] Figure 4 for Figure 3 Exploded view of the structure shown;

[0014] Figure 5 for Figure 4 Structural diagram of the main supporting structure;

[0015] Figure 6 for Figure 5 A bottom view of the structure shown;

[0016] Figure 7 for Figure 6 Cross-sectional view at section AA;

[0017] Figure 8 for Figure 3 Structural diagram of the partition assembly;

[0018] Figure 9 for Figure 8 Structural diagram of the second sub-partition;

[0019] Figure 10 for Figure 8 Structural diagram of the third sub-partition;

[0020] Figure 11 for Figure 8 Exploded view of the structure shown;

[0021] Figure 12 A structural diagram showing the connection between the main body and the partition assembly;

[0022] Figure 13 for Figure 12 A bottom view of the structure shown;

[0023] Figure 14 for Figure 13 Cross-sectional view at section BB;

[0024] Figure 15 for Figure 13 Cross-sectional view at the C-section;

[0025] Figure 16 for Figure 4 Structural diagram of the rotor assembly;

[0026] Figure 17 for Figure 16 Top view of the structure shown;

[0027] Figure 18 for Figure 17 Cross-sectional view at section DD.

[0028] Explanation of icon numbers:

[0029] 1000-Flight device, 2000-Cooling system, 1-Axial motor, 10-Stator assembly, 11-Support body, 110-Shaft hole, 111-Annular groove, 112-Liquid inlet, 113-Liquid outlet, 114-Positioning groove, 115-Pole shoe, 116-Coil mounting groove, 12-Baffle assembly, 120-Shaft cylinder, 121-Baffle unit, 1210-Notch, 1211-First sub-baffle, 121 2-Second sub-partition, 1213-Third sub-partition, 1214-Partition body, 1215-Extension, 1216-Avoidance recess, 13-Liquid flow channel, 14-Sealing ring, 15-Coil, 20-Rotor assembly, 21-Installation cavity, 22-Ventilation hole, 23-Rotor top plate, 24-Rotor side plate, 25-Rotor bottom plate, 30-Motor shaft, 40-Bearing assembly, 2-Refrigerant pump set, 3-Heat dissipation assembly. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are merely some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this application.

[0031] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this application pertains. The terms “an,” “a,” or “the,” as used herein, do not indicate a limitation of quantity, but are merely used to indicate the presence of at least one. Terms such as “comprising” or “including” mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as “connected” or “linked” are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

[0032] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0033] The following will refer to the appendices in the embodiments of this application. Figure 1 -Appendix Figure 18 The technical solutions in the embodiments of this application, as well as some of the prior art embodiments related to this application, are clearly and completely described.

[0034] Please refer to this first. Figure 1 This application provides a flight device 1000, which includes an axial motor 1 for providing the kinetic energy required by the flight device 1000.

[0035] Please refer to this again. Figure 2 This application also provides a heat dissipation system 2000, which includes an axial motor 1. That is, the heat dissipation system 2000 is designed to dissipate the redundant heat generated by the axial motor 1 during operation, so as to reduce the heat loss of the internal structure of the axial motor 1 and extend the service life of the axial motor 1 to a certain extent.

[0036] Furthermore, the heat dissipation system 2000 also includes a refrigerant pump group 2 and a heat dissipation component 3. The refrigerant system is used to remove the redundant heat generated by the axial motor 1 during operation to the outside of the axial motor 1, so as to reduce the heat loss of the internal structure of the axial motor 1 and thus extend the service life of the axial motor 1.

[0037] The heat dissipation system 2000 can coexist in the aforementioned flight device 1000. That is, the flight device 1000 also has a heat dissipation system 2000, and the heat dissipation target of the heat dissipation system 2000 is the axial motor 1 in the flight device 1000.

[0038] Please continue to refer to this. Figures 3 to 18 This application also provides an axial motor 1, which can be applied to the aforementioned flight device 1000 and the aforementioned heat dissipation system 2000 to cooperate in the cooling operation of the axial motor 1.

[0039] The axial motor 1 includes a stator assembly 10, which includes a support body 11 and a partition assembly 12. The support body 11 has a shaft hole 110 and an annular groove 111 that communicates with the shaft hole 110. The refrigerant required for heat dissipation of the axial motor 1 can flow through the annular groove 111.

[0040] The baffle assembly 12 is located inside the shaft hole 110, and at least a portion of the baffle assembly 12 is embedded in the annular groove 111. The space enclosed by the baffle assembly 12 and the inner wall of the annular groove 111 forms a liquid flow channel 13, and at least a portion of the liquid flow channel 13 extends in the radial direction of the annular groove 111. The liquid flow channel 13 is the flow path of the refrigerant in the stator assembly 10.

[0041] Specifically, the baffle assembly 12 can jointly limit and constrain the liquid flow channel 13 with the annular groove 111. At least part of the structure of the baffle assembly 12 located inside the annular groove 111 can further constrain the flow path of the refrigerant, so that the refrigerant flows according to the flow channel shape of the liquid flow channel 13. At least part of the structure of the baffle assembly 12 located inside the annular groove 111 can also hinder the flow of the refrigerant to a certain extent, so that the refrigerant can be decelerated after entering the annular groove 111. Thus, at the same position in the liquid flow channel 13, the refrigerant and the support body 11 have more contact time, and the refrigerant can contact the support body 11 more fully, and absorb more redundant heat generated by the stator assembly 10 during operation.

[0042] It is necessary to understand that, such as Figures 4 to 6 As shown, the support body 11 also includes multiple pole shoes 115 and coil mounting slots 116 formed between adjacent pole shoes 115. The stator assembly 10 also includes a coil 15, which includes a core and windings wound around the core. When the axial motor 1 operates, current flows through the windings to generate an electromagnetic field in the stator assembly 10, thereby driving the rotor assembly 20 to rotate. In the stator assembly 10, a bearing assembly 40 is provided in the shaft hole 110. The motor shaft 30 is rotatably connected to the bearing assembly 40 to provide steering support during the operation of the axial motor 1. The motor shaft 30 is connected to the rotor assembly 20. When the axial motor 1 operates, the rotor assembly 20 rotates, and the motor shaft 30 rotates accordingly. Thus, the output shaft connected to the motor shaft 30 rotates with the rotation of the motor shaft 30.

[0043] As can be seen from the above, in the axial motor 1 of this application, the stator assembly 10 generates a lot of redundant heat due to the energization of the coil 15. Therefore, the stator assembly 10 is the main source of redundant heat in the axial motor 1. The redundant heat generated by the coil 15 is transferred to the support body 11 connected to the coil 15. Therefore, this application sets an annular groove 111 inside the support body 11 and correspondingly sets a baffle assembly 12 to constrain the flow path of the refrigerant 13 together with the annular groove 111, thereby further constraining the flow path of the refrigerant. This allows the refrigerant to better absorb the redundant heat generated by the operation of the stator assembly 10. With the circulation of the refrigerant, the refrigerant can effectively carry away the redundant heat generated by the operation of the stator assembly 10, thereby reducing the temperature of the stator assembly 10, reducing the heat loss of the working parts of the axial motor 1, and thus extending the service life of the axial motor 1.

[0044] Moreover, since the annular groove 111 is formed on the support body 11 of the stator assembly 10, the refrigerant can come into direct contact with the support assembly, and the support body 11 can introduce refrigerant to cool it without connecting to an external structure. Thus, the structural space of the support body 11 is effectively utilized. While reducing the material consumption of the support body 11, the overall space ratio of the stator assembly 10 and the heat dissipation structure can also be reduced, thereby effectively reducing the volume of the stator assembly 10. Correspondingly, the total volume of the axial motor 1 can be reduced to a certain extent.

[0045] It should be noted that, in order to maintain the neatness and readability of the drawings, only one pole shoe 115 and one coil mounting slot 116 are shown as examples in multiple drawings. Other similar and identical structures in the drawings are pole shoe 115 and coil mounting slot 116.

[0046] Please refer to Figures 8 to 11 In some embodiments, the partition assembly 12 includes a shaft cylinder 120 and a plurality of partition units 121 disposed at intervals around the shaft cylinder 120. The shaft cylinder 120 is disposed in a shaft hole 110, and the partition units 121 are disposed in an annular groove 111. The partition units 121 have notches 1210, and the distance between the notches 1210 of at least two adjacent partition units 121 and the shaft cylinder 120 is different.

[0047] The partition unit 121 can isolate the annular groove 111 within the annular groove 111. Simultaneously, the space between two adjacent partition units 121 can be connected through a notch 1210 on the partition unit 121 to form a fluid flow channel 13. The shaft cylinder 120 is used to seal the opening of the annular groove 111, so that the fluid flow channel 13 and the shaft hole 110 are separated on opposite sides of the shaft cylinder 120. When refrigerant flows into the annular groove 111, the refrigerant moves along the flow direction of the fluid flow channel 13 to absorb redundant heat generated during the operation of the stator assembly 10.

[0048] Because the distance between the notch 1210 of the adjacent partition unit 121 and the shaft cylinder 120 is different, the flow channel 13 of the liquid flow channel is curved. Compared with the refrigerant moving directly along the groove direction of the annular groove 111, the structural design in the above embodiment can increase the length of the refrigerant movement path, thereby increasing the contact time between the refrigerant and the stator body, so that the refrigerant can more fully absorb the redundant heat generated by the operation of the stator assembly 10. In this way, the refrigerant can better cool the stator assembly 10, thereby improving the cooling and heat dissipation effect of the refrigerant on the stator assembly 10.

[0049] For reference Figure 8 Furthermore, multiple baffle units 121 are equidistantly distributed along the circumference of the shaft cylinder 120. Thus, due to the equidistant distribution of the baffle units 121, the distance between any two adjacent baffle units 121 is the same. Therefore, when the refrigerant enters the annular groove 111 and flows along the liquid flow channel 13, without considering external force interference, the residence time of the refrigerant at any position in the annular groove 111 is the same. Thus, along the circumferential direction of the support body 11, the refrigerant has the same absorption effect on the redundant heat at each position of the stator body, effectively alleviating the uneven heat dissipation at different positions of the stator assembly 10 caused by uneven refrigerant flow rate.

[0050] Moreover, in the above embodiments, since multiple partition units 121 are equidistantly distributed along the circumference of the shaft cylinder 120, the installation of the partition assembly 12 can be quickly completed by equidistant positioning when the workers assemble the partition assembly 12.

[0051] For reference Figure 8 and Figure 11 Optionally, the partition unit 121 includes an adjacent first sub-partition 1211 and a second sub-partition 1212. The notch 1210 of the first sub-partition 1211 is located near the shaft cylinder 120, and the notch 1210 of the second sub-partition 1212 is located near the bottom wall of the annular groove 111. The bottom wall of the groove is spaced apart from the shaft cylinder 120 along the radial direction of the support body 11, and the groove wall of the annular groove 111 is far away from the shaft hole 110 relative to the shaft cylinder 120. Thus, the first sub-partition 1211, the second sub-partition 1212 and the shaft cylinder 120 together with the groove body of the annular groove 111 form a curved liquid flow channel 13 to improve the cooling and heat dissipation effect of the refrigerant on the stator assembly 10.

[0052] In some embodiments, the first sub-partition 1211 and the second sub-partition 1212 have the same size specifications. That is, the first sub-partition 1211 and the second sub-partition 1212 are no different except for the placement method and the position (i.e. the orientation of the notch 1210). Thus, when installing, the workers only need to pay attention to the type of partition unit 121, without having to distinguish between the first sub-partition 1211 and the second sub-partition 1212, and only need to pay attention to the installation orientation of the notch 1210, which effectively improves the installation efficiency of the workers.

[0053] Please refer to this as well. Figures 12 to 15 Furthermore, the supporting body 11 is provided with a liquid inlet 112 and a liquid outlet 113, both of which are connected to the liquid flow channel 13. The refrigerant flows into the liquid flow channel 13 from the liquid inlet 112 and flows out of the liquid flow channel 13 from the liquid outlet 113.

[0054] in, Figure 9 An exemplary structure of a second sub-partition 1212 is shown. However, the fundamental technical difference between the first sub-partition 1211 and the second sub-partition 1212 lies in the orientation of the notch 1210. Therefore, the structure of the first sub-partition 1211 can be referenced. Figure 9 The structure of the second sub-partition 1212 shown.

[0055] Combined with references Figure 8 and Figure 10 The partition unit 121 also includes a third sub-partition 1213. When the third sub-partition 1213 is located in the liquid flow channel 13, it blocks the liquid flow channel 13. Along the extending direction of the liquid flow channel 13, the inlet 112 and the outlet 113 are located on opposite sides of the third sub-partition 1213. Thus, the third sub-partition 1213 can block the inlet 112 and the outlet 113, meaning that the inlet 112 and the outlet 113 cannot be connected through the liquid flow channel 13. When the refrigerant flows along the liquid flow channel 13... The refrigerant that absorbs excess heat flows out through the outlet 113, while the refrigerant at low temperature flows into the liquid passage 13 through the inlet 112. Due to the isolation effect of the third sub-baffle 1213, the refrigerant that absorbs excess heat and the refrigerant at low temperature do not flow together. That is, the refrigerant will not flow back from the inlet 112 in one flow cycle of the liquid passage 13. The multiple flow cycles of the refrigerant are independent of each other and do not interfere with each other. In this way, the cooling and heat dissipation effect of the refrigerant on the stator assembly 10 is improved, and the performance damage of the refrigerant pump group 2 to the refrigerant backflow is avoided.

[0056] The structure of the third sub-partition 1213 can be referenced. Figure 10 The partition structure shown.

[0057] Please refer to this again. Figure 9and Figure 10 Optionally, the partition unit 121 includes a partition body 1214 and at least one extension 1215. The extension 1215 is connected to at least one side of the partition body 1214 along the axial direction of the support body 11 and extends along the radial direction of the support body 11. When the partition unit 121 is located in the liquid flow channel 13, the extension 1215 is connected to the sidewall of the annular groove 111, wherein the sidewall of the groove extends along the radial direction of the support body 11.

[0058] Along the groove direction of the annular groove 111, the interaction force between the refrigerant and the baffle unit 121 is perpendicular (which can be understood as vertical or nearly vertical) to the baffle unit 121. Therefore, in order to prevent the baffle unit 121 from shifting during the refrigerant flow and affecting the subsequent cooling effect of the refrigerant, the baffle unit 121 is provided with an extension portion 1215. The extension portion 1215 can increase the contact area between the baffle unit 121 and the groove wall of the annular groove 111, thereby increasing the friction between the baffle unit 121 and the groove wall of the annular groove 111, so that the baffle unit 121 can be more stably located in the annular groove 111. That is, the extension portion 1215 can improve the resistance of the baffle unit 121 to the impact of the refrigerant flow, so that it is more stable and securely located in the annular groove 111.

[0059] Meanwhile, the extension portion 1215 can also increase the contact area between the partition unit 121 and the wall of the annular groove 111. Therefore, when the partition unit 121 is installed in the annular groove 111, along the outer periphery of the supporting body 11, the extension portion 1215 can effectively alleviate the shaking of the partition unit 121 relative to the annular groove 111 due to the supporting and limiting effect of the extension portion 1215. This allows the partition unit 121 to be installed in the annular groove 111 more ideally and stably, without the partition unit 121 being tilted relative to the wall of the annular groove 111 after installation. In this way, when the refrigerant flows along the liquid flow channel 13, the partition unit 121 will not be knocked over by the refrigerant due to the installation effect, thus affecting the cooling and heat dissipation effect of the refrigerant in the subsequent process.

[0060] Please continue to refer to this. Figure 9 and Figure 10Furthermore, the partition body 1214 and / or extension 1215 are provided with a clearance recess 1216. The clearance recess 1216 extends along the rotation axis of the axial motor 1. Without affecting the connection effect between the partition body 1214 and / or extension 1215 and the wall of the annular groove 111, the clearance recess 1216 reduces the contact area between the partition body 1214 and / or extension 1215 and the wall of the annular groove 111 when the partition unit 121 is installed in the annular groove 111. This reduces the friction between the partition unit 121 and the wall of the annular groove 111, reduces the resistance when the partition unit 121 is installed in the annular groove 111, and makes it easier to install the annular groove 111.

[0061] Please refer to this as well. Figure 11 , Figures 13 to 15 Furthermore, the axial motor 1 also includes a sealing ring 14, which seals the connecting shaft cylinder 120 and the support body 11. This further seals the annular groove 111, preventing the refrigerant from leaking out of the gap between the shaft cylinder 120 and the support body 11 when it flows along the liquid flow channel 13 in the annular groove 111, so as not to interfere with the normal operation of other components located in the shaft hole 110.

[0062] like Figure 11 As shown, the shaft cylinder 120 is provided with a positioning groove 114, and the sealing ring 14 is installed in the positioning groove 114. This improves the stability of the sealing ring 14 when it is connected to the shaft cylinder 120, so that the sealing ring 14 can be positioned in the positioning groove 114 of the shaft cylinder 120, ensuring that the sealing ring 14 will not be misaligned during installation. That is, it ensures the sealing effect of the sealing ring 14 in sealing the connection between the shaft cylinder 120 and the support body 11.

[0063] Please refer to this as well. Figure 1 , Figure 4 , Figures 16 to 18 In some embodiments, the axial motor 1 further includes a rotor assembly 20 having a mounting cavity 21 and a plurality of ventilation holes 22. The mounting cavity 21 is connected to the external space of the rotor assembly 20 through the ventilation holes 22 to enable heat exchange with the external space of the rotor assembly 20. The stator assembly 10 is located in the mounting cavity 21 and is exposed to the external space of the rotor assembly 20 through the ventilation holes 22.

[0064] It should be understood that when the stator assembly 10 is installed in the inner cavity 21, since there is a heat-conducting medium (such as air, bearing assembly 40, motor shaft, etc.) between the stator assembly 10 and the rotor assembly 20, the redundant heat generated by the stator assembly 10 during operation can directly (through solid heat conduction) or indirectly (through thermal radiation, such as air heat conduction) affect the rotor assembly 20, thereby causing the rotor assembly 20 to also heat up. Since the rotor assembly 20 is in a rotating state when the axial motor 1 is operating, its surface temperature can be dissipated into the external air through rotation. Therefore, the characteristic of the rotor assembly 20 rotating during operation can be further utilized by setting multiple ventilation holes 22 on the rotor assembly 20. When the rotor assembly 20 rotates, the air enters and exits the inner cavity 21 along the ventilation holes 22 under the driving action of the rotor assembly 20, so as to carry the redundant heat in the inner cavity 21 (the redundant heat generated by the operation of the stator assembly 10) out of the inner cavity 21 to the external space of the rotor assembly 20, thereby further realizing the cooling operation of the stator assembly 10.

[0065] Since the attached figures include multiple ventilation holes 22, in order to keep the figures neat, only ventilation holes 22 are marked as examples in multiple figures. Similar hole-like structures in the figures can be considered as ventilation holes 22.

[0066] Optionally, you may refer to Figure 16 and Figure 17 The rotor assembly 20 includes a rotor top plate 23, a rotor bottom plate 25, and a rotor side plate 24. The rotor top plate 23, rotor bottom plate 25, and rotor side plate 24 together constrain to form an installation cavity 21. The rotor side plate 24 and / or at least two of the rotor top plate 23, rotor bottom plate 25, and rotor side plate 24 are provided with a plurality of ventilation holes 22 so that when the rotor assembly 20 rotates, external air can flow along the plurality of ventilation holes 22 to form a plurality of flow paths.

[0067] It should be noted that, for the sake of simplicity, the foregoing method embodiments are all described as a series of actions. However, those skilled in the art should understand that this application is not limited to the described order of actions, as some steps may be performed in other orders or simultaneously according to this application. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions and modules involved are not necessarily essential to this application.

[0068] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0069] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit it. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. An axial electric machine, characterized in that, The axial motor comprises: a stator assembly comprising a support body and a partition assembly, the support body having a shaft hole and an annular groove communicating with the shaft hole; the partition assembly is located in the shaft hole, at least part of the partition assembly is embedded in the annular groove; the space surrounded by the partition assembly and the inner wall of the annular groove forms a through liquid flow channel, at least part of the through liquid flow channel extends along the radial direction of the annular groove.

2. The axial motor of claim 1, wherein, The partition assembly comprises a shaft cylinder and a plurality of spaced partition units arranged on the periphery of the shaft cylinder, the shaft cylinder is arranged in the shaft hole, the partition units are arranged in the annular groove, the partition units have notches, and the distance between the notches of at least two adjacent partition units and the shaft cylinder is different.

3. The axial motor of claim 2, wherein, A plurality of partition units are equidistantly distributed along the periphery of the shaft cylinder.

4. The axial motor of claim 2, wherein, The partition unit comprises adjacent first and second sub-partition plates, the notch of the first sub-partition plate is located close to the shaft cylinder, and the notch of the second sub-partition plate is located close to the groove bottom wall of the annular groove, wherein, along the radial direction of the support body, the groove bottom wall is spaced from the shaft cylinder, and the groove wall of the annular groove is away from the shaft hole relative to the shaft cylinder.

5. The axial motor of claim 4, wherein, The support body is provided with a liquid inlet and a liquid outlet, and the liquid inlet and the liquid outlet communicate with the through liquid flow channel; The partition unit further comprises a third sub-partition plate, when the third sub-partition plate is located in the through liquid flow channel, the third sub-partition plate blocks the through liquid flow channel, and the liquid inlet and the liquid outlet are located on opposite sides of the third sub-partition plate along the extension direction of the through liquid flow channel.

6. The axial motor of claim 2, wherein, The partition unit comprises a partition body and at least one extension part, along the axial direction of the support body, the extension part is connected to at least one side of the partition body and extends along the radial direction of the support body, when the partition unit is located in the through liquid flow channel, the extension part connects the groove side wall of the annular groove, wherein the groove side wall extends along the radial direction of the support body.

7. The axial motor of claim 6, wherein, The partition body and / or the extension part is provided with a recess, the recess extends along the rotation axis of the axial motor.

8. The axial motor of claim 7, wherein, The axial motor further comprises a sealing ring, the sealing ring sealingly connects the shaft cylinder and the support body.

9. An axial motor according to any one of claims 1-8, characterized in that The axial motor further comprises a rotor assembly, the rotor assembly has a mounting cavity and is provided with a plurality of ventilation holes, the mounting cavity communicates with the external space of the rotor assembly through the ventilation holes; the stator assembly is located in the mounting cavity and is exposed to the external space of the rotor assembly through the ventilation holes.

10. A heat dissipation system characterized by, The heat dissipation system comprises the axial motor according to any one of claims 1-9.

11. A flying device, characterized by The flight device comprises the axial motor according to any one of claims 1-9.

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