Immersed cooling motor and vehicle

Abstract

The invention relates to an immersed cooling motor and a vehicle, in one aspect, the immersed cooling motor comprises a rotor assembly, a stator assembly and a shell, and the stator assembly comprises a stator iron core; a stator winding; and the end part of the cooling liquid isolation piece is in sealed connection with the shell, and a main body of the cooling liquid isolation piece is embedded between the stator iron core and the rotor assembly and is used for accommodating cooling liquid and the stator winding. According to the immersed cooling motor provided by the invention, the stator winding, the stator iron core and the rotor assembly are isolated through the cooling liquid isolation piece, so that the cooling effect is ensured, the cooling liquid is prevented from leaking into the rotor assembly, the rotor assembly is prevented from generating oil stirring loss, and the efficiency of the immersed cooling motor is improved.

Description

Technical Field

[0001] The present application relates to the technical field of motors, and particularly to an immersion-cooled motor and a vehicle. Background Art

[0002] An immersion-cooled motor is a motor in which the stator in the motor is immersed in a coolant for cooling, and the coolant's efficient heat transfer characteristics are used to absorb and dissipate the heat generated during the operation of the motor.

[0003] In related technologies, multiple cooling pipelines are arranged near the stator winding as a coolant isolation device, and the cooling pipelines are sealed through a transition fit form or a sealing structure such as a sealing ring.

[0004] However, in the immersion-cooled motor in related technologies, the isolation performance of the coolant isolation device is poor, and the coolant is likely to leak to the rotor assembly, resulting in stirring oil loss in the rotor assembly and low efficiency of the immersion-cooled motor. Summary of the Invention

[0005] Based on this, it is necessary to provide an immersion-cooled motor and a vehicle with good coolant isolation performance and high operating efficiency in view of the problems in related technologies.

[0006] In a first aspect, the present application provides an immersion-cooled motor, including: a rotor assembly, a stator assembly, and a housing. The stator assembly includes:

[0007] A stator core;

[0008] A stator winding;

[0009] A coolant isolation member, the end of the coolant isolation member is sealingly connected to the housing, and the main body of the coolant isolation member is embedded between the stator core and the rotor assembly and is used to accommodate the coolant and the stator winding.

[0010] In one embodiment, the coolant isolation member in the provided immersion-cooled motor includes:

[0011] An insulating ring, sleeved outside the rotor assembly and sealingly connected to the housing;

[0012] An isolation cavity, one side of the isolation cavity is connected to the insulating ring, and the cavity of the isolation cavity is embedded in a groove inside the stator core and is used to accommodate the coolant and the stator winding.

[0013] In one embodiment, the isolation cavity in the provided immersion-cooled motor penetrates axially along the insulating ring.

[0014] In one embodiment, symmetric protrusions are provided on the inner surface of the isolation cavity in the provided immersion-cooled motor.

[0015] In one embodiment, a hollowed-out portion is provided in the insulating ring of the immersion-cooled motor between two adjacent isolation chambers.

[0016] In one embodiment, the housing of the immersion-cooled motor provided includes:

[0017] An outer shell, disposed outside the stator assembly and connected to the rotor assembly;

[0018] End caps, respectively connected to one side of the housing, the stator assembly, and the rotor assembly.

[0019] In one embodiment, the outer shell of the immersion-cooled motor provided includes:

[0020] A liquid inlet hole, opened on one side of the outer shell close to the end cap;

[0021] A liquid outlet hole, opened on one side of the outer shell away from the end cap.

[0022] In one embodiment, a thrust surface is provided on the inner side of the outer shell of the immersion-cooled motor for limiting the stator assembly.

[0023] In one embodiment, the immersion-cooled motor provided further includes: a first seal, disposed between the end cap and the coolant isolation member; a second seal, disposed between the outer shell and the coolant isolation member.

[0024] In a second aspect, the present application provides a vehicle including the immersion-cooled motor as described in the first aspect above.

[0025] For the above-mentioned immersion-cooled motor and vehicle, the immersion-cooled motor provided in one aspect includes: a rotor assembly, a stator assembly, and a housing. The stator assembly includes: a stator core; a stator winding; a coolant isolation member. The end of the coolant isolation member is hermetically connected to the housing. The main body of the coolant isolation member is embedded between the stator core and the rotor assembly and is used for accommodating the coolant and the stator winding. In this embodiment, while immersing the stator winding in the coolant, the stator winding, the stator core, and the rotor assembly are separated by the coolant isolation member, ensuring the cooling effect while preventing the coolant from leaking into the rotor assembly and preventing the rotor assembly from generating oil churning losses, thereby improving the efficiency of the immersion-cooled motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application or in the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0027] Figure 1 Structural schematic diagram of an immersion-cooled motor in an embodiment of the present application;

[0028] Figure 2 Structural schematic diagram of a stator assembly in an embodiment of the present application;

[0029] Figure 3 Structural schematic diagram of a coolant separator in an embodiment of the present application;

[0030] Figure 4 Partial structural schematic diagram of a stator assembly in an embodiment of the present application;

[0031] Figure 5 Structural schematic diagram of a housing in an embodiment of the present application;

[0032] Figure 6 Structural schematic diagram of an end cover in an embodiment of the present application;

[0033] Figure 7 Cross-sectional view of an end cover in an embodiment of the present application;

[0034] Figure 8 Cross-sectional view of an immersion-cooled motor in an embodiment of the present application;

[0035] Figure 9 is Figure 8 Partial enlarged view of the area corresponding to label Ⅰ in;

[0036] Figure 10 is Figure 8 Partial enlarged view of the area corresponding to label Ⅱ in;

[0037] Figure 11 Cross-sectional structural schematic diagram of an immersion-cooled motor in an embodiment of the present application;

[0038] Explanation of the reference numerals in the drawings:

[0039] 1. Rotor assembly; 2. Stator assembly; 21. Stator core; 211. Slot opening; 22. Stator winding; 23. Coolant separator; 231. Insulating ring; 232. Isolation cavity; 233. Protrusion; 234. Wide channel; 235. Narrow channel; 3. Housing; 31. Outer housing; 311. Thrust surface; 312. Liquid inlet hole; 313. Liquid outlet hole; 314. First bearing chamber; 32. End cover; 321. Cover plate; 322. Central disk; 3221. Second bearing chamber; 4. First seal; 5. Second seal. Detailed implementation manners

[0040] To make the above objects, features, and advantages of the present application more apparent and understandable, the following provides a detailed description of the specific embodiments of the present application with reference to the accompanying drawings. Many specific details are set forth in the following description to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0041] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application.

[0042] In addition, the terms "first" and "second" are used only for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0043] In the present application, unless otherwise clearly specified and limited, the terms "mounted", "connected", "coupled", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0044] In the present application, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over", and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "below", "beneath", and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0045] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are only for illustrative purposes and do not represent the only implementation.

[0046] The following will further elaborate on the embodiments of the present application in conjunction with the attached Figures 1-11 drawings.

[0047] In a first aspect, an embodiment of the present application provides an immersion-cooled motor. Figure 1 FIG. shows a schematic structural diagram of the immersion-cooled motor in an embodiment of the present application. Referring to Figure 1 , the immersion-cooled motor provided in an embodiment of the present application includes: a rotor assembly 1, a stator assembly 2 and a housing 3. The stator assembly 2 includes: a stator core 21; a stator winding 22 and a coolant separator 23. The end of the coolant separator 23 is hermetically connected to the housing 3. The main body of the coolant separator 23 is embedded between the stator core 21 and the rotor assembly 1 and is used to accommodate the coolant and the stator winding 22. Among them, the stator assembly 2 is used to generate a rotating magnetic field. The stator winding 22 can be a concentrated winding or a distributed winding; the rotor assembly 1 includes a rotating shaft, a rotor core and a rotor winding. The rotor assembly 1 generates an induced current based on electromagnetic induction, generates an electromagnetic torque and then rotates. The coolant is a liquid with good thermal conductivity, insulation and chemical stability, and can include mineral oil, synthetic oil, ester liquid or fluorinated liquid.

[0048] Figure 2 FIG. shows a schematic structural diagram of the stator assembly 2 provided in an embodiment of the present application. Referring to Figure 2 , a plurality of grooves are uniformly arranged inside the stator core 21. During the assembly process of the stator assembly 2, the stator winding 22 is inserted into the coolant separator 23, and then the two ends of the stator winding 22 are twisted and welded. The main body of the coolant separator 23 is embedded in the grooves inside the stator core 21. The outside of the coolant separator 23 is the stator core 21. The cavity in the coolant separator 23 is used to accommodate the coolant and the stator winding 22. The inside of the coolant separator 23 is the rotor assembly 1.

[0049] The immersion-cooled motor provided in the above embodiments includes: a rotor assembly 1, a stator assembly 2, and a housing 3. The stator assembly 2 includes: a stator core 21; a stator winding 22; a coolant isolation member 23. The end of the coolant isolation member 23 is sealingly connected to the housing 3. The main body of the coolant isolation member 23 is embedded between the stator core 21 and the rotor assembly 1 and is used to accommodate the coolant and the stator winding 22. In this embodiment, while the stator winding 22 is immersed in the coolant, the stator winding 22, the stator core, and the rotor assembly 1 are separated by the coolant isolation member 23, ensuring the cooling effect while preventing the coolant from leaking into the rotor assembly 1 and preventing the rotor assembly 1 from generating oil churning losses, thereby improving the efficiency of the immersion-cooled motor.

[0050] Figure 3 The structural schematic diagram of the coolant isolation member 23 provided in an embodiment of the present application is shown. Refer to Figures 1 to 3 In an embodiment of the present application, the coolant isolation member 23 in the immersion-cooled motor includes: an insulating ring 231, sleeved outside the rotor assembly 1 and sealingly connected to the housing 3; an isolation cavity 232, one side of the isolation cavity 232 is connected to the insulating ring 231, and the cavity of the isolation cavity 232 is embedded in a groove inside the stator core 21 and is used to accommodate the coolant and the stator winding 22.

[0051] Among them, the coolant isolation member 23 includes a plurality of isolation cavities 232, and the plurality of isolation cavities 232 are uniformly arranged circumferentially outside the insulating ring 231. In a possible implementation manner, for each isolation cavity 232, the isolation cavity 232 penetrates along the axial direction of the insulating ring 231. Among them, the axial direction of the insulating ring 231 is Figure 3 the direction pointed by the mark A in Figure 3 As shown, the isolation cavity 232 may be a cuboid structure. In the perspective of Figure 3 , the top surface and the bottom surface of the isolation cavity 232 penetrate, and the other four sides enclose to form a cavity, and the side close to the rotor assembly 1 is connected to the outer surface of the insulating ring 231.

[0052] In a possible implementation manner, symmetric protrusions 233 are provided on the inner surface of the isolation cavity 232. Among them, the protrusions 233 are provided on the inner surface along the circumferential direction of the insulating ring 231. The protrusions 233 divide the isolation cavity 232 into a plurality of wide channels 234. Between adjacent two wide channels 234, that is, between each pair of protrusions 233, a narrow channel 235 is formed, and a group of stator windings 22 pass through each wide channel 234.

[0053] Figure 4 The partial structural schematic diagram of the stator assembly 2 in an embodiment of the present application is shown. Refer to Figure 3 and Figure 4, during the cooling process of the motor, the coolant flows into the isolation chamber 232, submerging the stator winding 22 in the coolant. The heat generated during the operation of the motor is absorbed through the heat transfer characteristics of the coolant. The coolant after absorbing heat converges in the narrow channel 235 and flows out of the isolation chamber 232. In Figure 4 's perspective, corresponding protrusions 233 are provided on the inner surfaces of the left and right sides of the isolation chamber 232. Optionally, two pairs of protrusions 233 are provided on the inner surface of the isolation chamber 232. These two pairs of protrusions 233 divide the isolation chamber 232 into three wide channels 234 and two narrow channels 235. In this embodiment, by symmetrically arranging the protrusions 233 on the inner surface of the isolation chamber 232, the stator windings 22 are separated, enabling the coolant to come into contact with the stator windings 22 more evenly, thereby improving the cooling effect. Moreover, the narrow channels 235 formed between the stator windings 22 are used as coolant passages, which can smoothly discharge the coolant after absorbing heat from the isolation chamber 232, avoiding local overheating and further improving the cooling efficiency.

[0054] In a possible embodiment, the insulating ring 231 is provided with a hollowed-out portion between two adjacent isolation chambers 232. In the axial direction of the insulating ring 231, the length of the insulating ring 231 is greater than the length of the isolation chamber 232. In Figure 3 's perspective, the part of the insulating ring 231 that extends beyond the isolation chamber 232 at the top forms a first insulating portion, and the part that extends beyond the isolation chamber 232 at the bottom forms a second insulating portion. The first insulating portion and the second insulating portion are complete ring-shaped structures. The top of each isolation chamber 232 near the rotor assembly 1 is connected to the bottom of the first insulating portion, and the bottom of each isolation chamber 232 near the rotor assembly 1 is connected to the top of the second insulating portion. The part of the insulating ring 231 between the isolation chambers 232 is hollowed out to avoid adverse electromagnetic coupling between various structures and reduce eddy current losses in the motor; and it can reduce the weight of the coolant separator 23, contributing to the overall lightweight of the motor.

[0055] Continue to refer to Figure 4, a notch 211 is provided at one end of the groove inside the stator core 21 close to the rotor assembly 1. The width of the notch 211 is smaller than the width of the groove. In a possible implementation manner, the radius of the insulating ring 231 matches the radius of the inscribed circle of each groove notch 211. In this way, the insulating ring 231 is clamped with each groove notch 211, and the isolation cavity 232 provided on the outer side of the insulating ring 231 is clamped with the groove. During the cooling process of the motor, the coolant flows into each isolation cavity 232 from the outer side of the first insulating portion of the insulating ring 231 and then flows out from the outer side of the second insulating portion, which can effectively prevent the coolant from entering the notch 211 and the rotor assembly 1, thereby ensuring the isolation performance of the coolant isolation member 23 in the immersed cooling motor. Optionally, the insulating ring 231 also isolates the stator core 21 from the stator winding 22, playing a role of insulation protection and being able to replace the insulating paper in the stator assembly 2.

[0056] In a possible implementation manner, the coolant isolation member 23 is injection-molded with the stator core 21 as the skeleton through an injection molding process. The material of the coolant isolation member 23 may include polyamide, polybutylene terephthalate, polypropylene, or a mixture of multiple polymers.

[0057] Figure 5 The structural schematic diagram of the housing 31 provided in an embodiment of the present application is shown; Figure 6 The structural schematic diagram of the end cover 32 provided in an embodiment of the present application is shown; Figure 7 The sectional view of the end cover 32 in an embodiment of the present application is shown. Refer to Figures 5 to 7 , the housing 3 of the immersed cooling motor provided in an embodiment of the present application includes: a housing 31, which is disposed outside the stator assembly 2 and is connected to the rotor assembly 1; an end cover 32, which is respectively connected to one side of the housing 3, the stator assembly 2, and the rotor assembly 1. Among them, the housing 31 is approximately a cylinder with an opening on one side, and the opening side is detachably connected to the end cover 32. In a possible implementation manner, an interference fit is provided between the stator assembly 2 and the housing 31, and the stator assembly 2 is inserted into the housing 31 through a certain pressure to form a firm mechanical connection between the stator assembly 2 and the housing 31, so that there is no relative sliding or loosening between the stator assembly 2 and the housing 31, enabling the overall immersed cooling motor to withstand greater mechanical loads and vibrations, which helps to improve the rigidity and stability of the overall structure.

[0058] In a possible implementation manner, refer to Figure 5, a thrust surface 311 is provided inside the housing 31 for limiting the stator assembly 2. Among them, the thrust surface 311 is used to limit the stator assembly 2 axially, and limit the axial displacement of the stator assembly 2 during the operation of the motor, ensuring that the components of the stator assembly 2 are accurately and stably positioned in the housing 31, avoiding wear caused by the force-induced offset of the components, thereby ensuring the mechanical stability and operation accuracy of the stator assembly 2. Optionally, the contact surface between the thrust surface 311 and the stator assembly 2 is covered with wear-resistant material or coating.

[0059] Refer to Figure 5 , in a possible implementation manner, the housing 31 includes: a liquid inlet hole 312, which is opened on one side of the housing 31 close to the end cover 32; a liquid outlet hole 313, which is opened on one side of the housing 31 far from the end cover 32. Among them, both the liquid inlet hole 312 and the liquid outlet hole 313 are provided on the outer peripheral wall of the housing 31. After the stator assembly 2 is assembled, the liquid inlet hole 312 of the housing 31 is provided at the top of the first end of the stator winding 22 and is communicated with the first end of the stator winding 22; the liquid outlet hole 313 is provided at the top of the second end of the stator winding 22 and is communicated with the second end of the stator winding 22. In this way, the coolant flows into the first end of the stator winding 22 from the liquid inlet hole 312, passes through the isolation cavity 232 in the coolant isolation member 23, and flows out from the liquid outlet hole 313.

[0060] In a possible implementation manner, the housing 31 further includes: a first bearing chamber 314 for accommodating the first end of the bearing of the rotor assembly 1. Refer to Figure 6 and Figure 7 , the end cover 32 includes a cover plate 321 and a central disk 322. The cover plate 321 is detachably connected to the opening side of the housing 31; the central disk 322 includes a second bearing chamber 3221, and the second bearing chamber 3221 is disposed opposite to the first bearing chamber 314 for accommodating the second end of the bearing of the rotor assembly 1. Optionally, the end cover 32 and the opening side of the housing 31 can be connected by bolts.

[0061] Figure 8 shows a sectional view of the immersion-cooled motor provided in an embodiment of the present application; Figure 9 is Figure 8 a partial enlarged view of the area corresponding to the mark Ⅰ in Figure 10 is Figure 8 a partial enlarged view of the area corresponding to the mark Ⅱ in Figures 5 to 10, the immersion-cooled motor provided in an embodiment of the present application further includes: a first seal 4 disposed between the end cover 32 and the coolant isolation member 23; a second seal 5 disposed between the housing 31 and the coolant isolation member 23. Among them, the first seal 4 is disposed on the shoulder protruding from the edge of the central disc 322 of the end cover 32, and a first installation groove is provided on the shoulder, and the first seal 4 is installed in the first installation groove. The second seal 5 is disposed on the shoulder protruding from the outside of the first bearing chamber 314 of the housing 31, and a second installation groove is provided on the shoulder, and the second seal 5 is installed in the second installation groove. Optionally, the first seal 4 and the second seal 5 can be rubber O-rings or polymer gasket seals.

[0062] In this embodiment, by providing a seal between the coolant isolation member 23 and the housing 3, it is possible to ensure that the rotor assembly 1, the stator winding 22, and the stator core 21 are isolated from each other, preventing the coolant submerging the stator winding 22 from seeping into the rotor assembly 1 area or the air gap area between the stator assembly 2 and the rotor assembly 1, which may affect the normal operation of the rotor assembly 1, thereby improving the coolant isolation performance and operating efficiency of the immersion-cooled motor.

[0063] The immersion-cooled motor provided in an embodiment of the present application includes: a rotor assembly 1, a stator assembly 2, and a housing 3. The stator assembly 2 includes: a stator core 21; a stator winding 22; a coolant isolation member 23, the end of the coolant isolation member 23 is sealingly connected to the housing 3, and the main body of the coolant isolation member 23 is embedded between the stator core 21 and the rotor assembly 1 and is used to accommodate the coolant and the stator winding 22.

[0064] Among them, the coolant isolation member 23 includes: an insulating ring 231 sleeved outside the rotor assembly 1 and sealingly connected to the housing 3, and a hollow portion is provided on the insulating ring 231 between two adjacent isolation cavities 232; an isolation cavity 232, one side of the isolation cavity 232 is connected to the insulating ring 231, the cavity of the isolation cavity 232 is embedded in the groove inside the stator core 21 and is used to accommodate the coolant and the stator winding 22, the isolation cavity 232 penetrates along the axial direction of the insulating ring 231, and symmetric protrusions 233 are provided on the inner surface of the isolation cavity 232.

[0065] Among them, the housing 3 includes: a housing 31 disposed outside the stator assembly 2 and connected to the rotor assembly 1. The housing 31 includes: a liquid inlet hole 312 opened on one side of the housing 31 close to the end cover 32; a liquid outlet hole 313 opened on one side of the housing 31 away from the end cover 32; a thrust surface 311 for limiting the stator assembly 2. An end cover 32 is respectively connected to one side of the housing 3, the stator assembly 2, and the rotor assembly 1. A first seal 4 is disposed between the end cover 32 and the coolant isolation member 23; a second seal 5 is disposed between the housing 31 and the coolant isolation member 23.

[0066] Figure 11 The cross-sectional structural schematic diagram of the immersion-cooled motor provided in an embodiment of the present application is shown. Among them, the flow direction of the coolant is as indicated by the black arrow in the figure. The coolant flows into the first end of the stator winding 22 from the liquid inlet hole 312, passes through the isolation cavity 232 in the coolant isolator 23, and flows out from the liquid outlet hole 313.

[0067] In a second aspect, an embodiment of the present application provides a vehicle, including the immersion-cooled motor as described in the first aspect above. Specifically, the immersion-cooled motor in the provided vehicle includes: a rotor assembly 1, a stator assembly 2, and a housing 3. The stator assembly 2 includes: a stator core 21; a stator winding 22; a coolant isolator 23. The end of the coolant isolator 23 is sealingly connected to the housing 3. The main body of the coolant isolator 23 is embedded between the stator core 21 and the rotor assembly 1 and is used to accommodate the coolant and the stator winding 22.

[0068] In the description of this specification, the descriptions referring to terms such as "some embodiments", "other embodiments", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example.

[0069] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0070] The above embodiments only express several implementation manners of the present application. The descriptions are relatively specific and detailed, but should not be construed as a limitation on the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several deformations and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. An immersion cooling motor, characterized in that: The immersion cooling motor comprises: a rotor assembly, a stator assembly and a housing, wherein the stator assembly comprises: stator core; Stator winding; A coolant isolator, the end of which is sealed and connected to the housing, the main body of which is embedded between the stator core and the rotor assembly and is used to contain coolant and the stator winding.

2. The immersion cooling motor according to claim 1, characterized in that: The coolant isolator comprises: An insulating ring, sleeved on the outer side of the rotor assembly and sealed with the housing; An isolation cavity, one side of which is connected to the insulating ring, a cavity body of the isolation cavity is embedded in a groove on the inner side of the stator core, and is used to contain a coolant and the stator winding.

3. The immersion cooling motor according to claim 2, characterized in that: The isolation cavity penetrates along the axial direction of the insulation ring.

4. The immersion cooling motor according to claim 3, characterized in that: The inner surface of the isolation cavity is provided with symmetrical protrusions.

5. The immersion cooling motor according to claim 2, characterized in that: The insulating ring is provided with a hollow portion between two adjacent isolation cavities.

6. The immersion cooling motor according to claim 1, characterized in that: The housing comprises: A housing, disposed outside the stator assembly and connected to the rotor assembly; The end cover is connected to one side of the housing, the stator assembly and the rotor assembly respectively.

7. The immersion cooling motor according to claim 6, characterized in that: The housing comprises: A liquid inlet hole is provided on a side of the housing close to the end cover; The liquid outlet is arranged on a side of the shell away from the end cover.

8. The immersion cooling motor according to claim 7, characterized in that: A thrust surface is provided on the inner side of the shell for limiting the position of the stator assembly.

9. The immersion cooling motor according to claim 6, characterized in that: The immersion cooling motor further includes: a first sealing member disposed between the end cover and the coolant isolating member; and a second sealing member disposed between the housing and the coolant isolating member.

10. A vehicle, characterized in that: The invention comprises an immersion-cooled motor as claimed in any one of claims 1 to 9.

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