Iron core assembly of motor, motor and vehicle

Abstract

The utility model discloses an iron core assembly of a motor, a motor and a vehicle, the iron core assembly of the motor comprises an iron core, the iron core is provided with an iron core groove and a first liquid cooling channel, the first liquid cooling channel and the iron core groove extend in the axial direction of the iron core, and the iron core groove and the first liquid cooling channel are arranged at intervals in the circumferential direction; part of the end ring is arranged at the two ends of the iron core, the other part of the end ring is arranged in the iron core groove, the part of the end ring communicates with the first liquid cooling channel, and a second liquid cooling channel is formed in the other part of the end ring, so that the iron core can be directly cooled through the first liquid cooling channel; and the second liquid cooling channel of the end ring can be used for directly cooling the winding in the iron core groove, so that the cooling effect is better.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to an iron core assembly of a motor, a motor and a vehicle. Background Art

[0002] In the development process of automotive motors in recent years, higher power density is increasingly required, which requires the motor operating temperature to be maintained in a relatively low temperature range. Therefore, the cooling of the motor becomes particularly important.

[0003] In the related art, one structure adopted for heat dissipation of an oil-cooled motor is that the cooling oil circuit is designed on the outer circumferential surface of the iron core, and the cooling medium is sprayed from the oil port onto the outer circumferential surface of the stator iron core and the winding end. The winding in the slot is far from the outer circumferential surface of the iron core, and the thermal conductivity of the iron core directly affects the cooling effect of the winding in the slot. Another structure is that the cooling oil circuit is designed at the position between the iron core slots, and the cooling medium enters from the oil port and is guided to the oil channel inside the iron core.

[0004] However, the winding in the iron core slot is one of the main heat sources of the motor. The existing structures all adopt an indirect cooling method, and the cooling oil circuit is far from the winding in the iron core slot, so direct cooling of the winding in the iron core slot cannot be achieved, and the cooling effect is poor. Summary of the Utility Model

[0005] The utility model aims to at least solve one of the technical problems existing in the prior art. For this purpose, the utility model provides an iron core assembly of a motor, which can not only directly cool the iron core through the first liquid cooling channel, but also directly cool the winding in the iron core slot by using the second liquid cooling channel of the end ring, and the cooling effect is better.

[0006] The utility model further provides a motor.

[0007] The utility model also provides a vehicle.

[0008] The iron core assembly of the motor according to the first aspect embodiment of the utility model includes: an iron core, on which an iron core slot and a first liquid cooling channel are arranged. The first liquid cooling channel and the iron core slot extend in the axial direction of the iron core, and the iron core slot and the first liquid cooling channel are circumferentially spaced apart; an end ring, a part of which is arranged at both ends of the iron core and another part is arranged in the iron core slot. The part of the end ring is communicated with the first liquid cooling channel, and a second liquid cooling channel is formed in the other part of the end ring.

[0009] According to the embodiment of the utility model, the iron core assembly of the motor can not only directly cool the iron core through the first liquid cooling channel, but also directly cool the winding in the iron core slot by using the second liquid cooling channel of the end ring, and the cooling effect is better.

[0010] According to some embodiments of the present utility model, the end ring includes: two end portions and a plug-in groove portion. The two end portions are disposed at both ends of the plug-in groove portion. One of the end portions is in contact with the iron core and forms a liquid inlet channel communicating with the first liquid cooling channel, and the other end portion is in contact with the iron core and forms a liquid outlet channel communicating with the first liquid cooling channel. The second liquid cooling channel is formed in the plug-in groove portion.

[0011] According to some embodiments of the present utility model, at least two liquid inlet holes are provided on the end portion. At least one liquid inlet hole is disposed on one side in the axial direction of the end portion, and at least another liquid inlet hole is disposed on the outer side in the radial direction of the end portion. At least two liquid inlet holes are all communicated with the liquid inlet channel.

[0012] According to some embodiments of the present utility model, at least two liquid outlet holes are provided on the end portion. At least one liquid outlet hole is disposed on one side in the axial direction of the end portion, and at least another liquid outlet hole is disposed on the outer side in the radial direction of the end portion. At least two liquid outlet holes are all communicated with the liquid outlet channel.

[0013] According to some embodiments of the present utility model, the iron core assembly of the motor further includes: a first liquid storage box and a second liquid storage box. The first liquid storage box and the second liquid storage box are respectively disposed at both axial ends of the iron core. The liquid inlet ends of the first liquid cooling channel and the second liquid cooling channel are communicated with the first liquid storage box, and the liquid outlet ends of the first liquid cooling channel and the second liquid cooling channel are communicated with the second liquid storage box.

[0014] According to some embodiments of the present utility model, a liquid inlet cavity is formed between the first liquid storage box and the iron core. The liquid inlet cavity is communicated with the liquid inlet ends of the first liquid cooling channel and the second liquid cooling channel. A liquid inlet is provided on the first liquid storage box and is communicated with the liquid inlet cavity; and, a liquid outlet cavity is formed between the second liquid storage box and the iron core. The liquid outlet cavity is communicated with the liquid outlet ends of the first liquid cooling channel and the second liquid cooling channel.

[0015] According to some embodiments of the present utility model, the iron core assembly of the motor further includes: a winding. A part of the winding penetrates through the second liquid cooling channel and the other part is respectively disposed in the liquid inlet cavity and the liquid outlet cavity.

[0016] According to some embodiments of the present utility model, there are a plurality of iron core slots and a plurality of first liquid cooling channels. The plurality of iron core slots and the plurality of first liquid cooling channels are arranged at intervals one by one; and, the plug-in groove portion includes a plurality of rectangular grooves. The plurality of rectangular grooves are respectively plugged in the plurality of iron core slots, and a second liquid cooling channel is formed in each rectangular groove.

[0017] The motor according to the second aspect embodiment of the present utility model includes: a housing; a rotor disposed within the housing; and a core assembly of the motor, the core assembly of the motor being disposed within the housing, and the rotor rotating within the core assembly of the motor.

[0018] The vehicle according to the third aspect embodiment of the present utility model includes the motor described above.

[0019] Compared with the traditional technology, in this embodiment, by providing an end ring, the second liquid cooling channel of the end ring is used to directly cool the windings in the core slots, and by providing a first liquid storage box and a second liquid storage box, direct cooling of both ends of the windings can be achieved. Then, by utilizing the first liquid cooling channel of the core itself, cooling of the core can be satisfied simultaneously. By providing a plurality of liquid inlet holes at the end and a rectangular groove with a closed perimeter, the cooling medium can be accurately introduced into the winding wire slots and the core interior for cooling, and the cooling efficiency is better.

[0020] The additional aspects and advantages of the present utility model will be partially given in the following description, partially become apparent from the following description, or be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and / or additional aspects and advantages of the present utility model will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, wherein:

[0022] Figure 1 is a schematic structural view of the cooperation between the core and the end ring according to the embodiment of the present utility model Figure 1 ;

[0023] Figure 2 is a schematic structural view of the cooperation between the core and the end ring according to the embodiment of the present utility model Figure 2 ;

[0024] Figure 3 is a schematic structural view of the cooperation between the core and the end ring according to the embodiment of the present utility model Figure 3 ;

[0025] Figure 4 is a schematic structural view of the end ring according to the embodiment of the present utility model;

[0026] Figure 5 is a schematic structural view of the core according to the embodiment of the present utility model;

[0027] Figure 6 is a schematic structural view of the cooperation between the core, the end ring and the windings according to the embodiment of the present utility model;

[0028] Figure 7 is a cross-section of the core assembly according to the embodiment of the present utility model Figure 1 ;

[0029] Figure 8 is a cross-section of the iron core assembly according to an embodiment of the present utility model Figure 2 ;

[0030] Figure 9 is a cross-section of the iron core assembly according to an embodiment of the present utility model Figure 3 ;

[0031] Figure 10 is a partial schematic view of the iron core assembly according to an embodiment of the present utility model Figure 1 ;

[0032] Figure 11 is a partial schematic view of the iron core assembly according to an embodiment of the present utility model Figure 2 .

[0033] Reference numerals:

[0034] 10, iron core; 11, iron core groove; 12, first liquid cooling channel;

[0035] 20, end ring; 21, second liquid cooling channel; 22, end part; 221, first liquid inlet hole; 222, second liquid inlet hole; 223, first liquid outlet hole; 224, second liquid outlet hole; 23, plug-in groove part;

[0036] 30, first liquid storage box; 31, liquid inlet cavity; 32, liquid inlet;

[0037] 40, second liquid storage box; 41, liquid outlet cavity;

[0038] 50, winding. Detailed implementation manners

[0039] The embodiments of the present utility model will be described in detail below. The embodiments described with reference to the drawings are exemplary. The embodiments of the present utility model will be described in detail below.

[0040] Reference will be made below to Figures 1 - 11 describe the iron core assembly of the motor according to an embodiment of the present utility model, and further, the present utility model also proposes a motor, and still further, the present utility model also proposes a vehicle.

[0041] Referring to Figures 1 - 11 as shown, the iron core assembly of the motor according to an embodiment of the present utility model includes: an iron core 10 and an end ring 20.

[0042] The iron core 10 is provided with an iron core groove 11 and a first liquid cooling channel 12. The first liquid cooling channel 12 and the iron core groove 11 extend in the axial direction of the iron core 10, and the iron core groove 11 and the first liquid cooling channel 12 are arranged at intervals in the circumferential direction. Among them, the first liquid cooling channel 12 is formed by the weight-reducing holes on each punching sheet of the iron core 10 communicating with each other. The first liquid cooling channel 12 extends in the axial direction of the iron core 10 and penetrates the iron core 10, and can supply a cooling medium to pass through. The cooling medium accurately flows into the first liquid cooling channel 12 and cools inside the iron core 10, which can ensure the cooling effect of the iron core 10.

[0043] Part of the end ring 20 is arranged at both ends of the iron core 10 and the other part is arranged in the iron core groove 11. The part of the end ring 20 communicates with the first liquid cooling channel 12, and a second liquid cooling channel 21 is formed in the other part of the end ring 20. In this way, the cooling medium can enter the first liquid cooling channel 12 from both ends of the end ring 20 to realize the cooling of the iron core 10. The other part of the end ring 20 is arranged in the iron core groove 11, and windings 50 need to be arranged in the iron core groove 11, but the windings 50 and the iron core groove 11 cannot be in direct contact. In the traditional technology, insulating paper is arranged in the iron core groove 11 to realize the insulation between the iron core groove 11 and the windings 50. In this embodiment, the end ring 20 used is an insulator, and the second liquid cooling channel 21 formed in the other part of the end ring 20 allows the cooling medium to enter, realizing the direct cooling of the windings 50 in the iron core groove 11, and the cooling effect is better.

[0044] Among them, the end ring 20 can be integrally injection-molded using a high-temperature resistant resin material.

[0045] Moreover, the iron core groove 11 and the first liquid cooling channel 12 are arranged at intervals in the circumferential direction, and the second liquid cooling channel 21 is arranged in the iron core groove 11, that is, the first liquid cooling channel 12 and the second liquid cooling channel 21 are arranged at intervals, and the cooling medium is more evenly distributed in the iron core 10, preventing local overheating.

[0046] Thus, not only can the iron core 10 be directly cooled through the first liquid cooling channel 12, but also the windings 50 in the iron core groove 11 can be directly cooled by using the second liquid cooling channel 21 of the end ring 20, and the cooling effect is better.

[0047] Refer to Figure 4 and Figures 9 - 11As shown, the end ring 20 includes: two end portions 22 and an insertion slot portion 23. The two end portions 22 are disposed at both ends of the insertion slot portion 23. One of the end portions 22 is in contact with the iron core 10 and forms a liquid inlet channel communicating with the first liquid cooling channel 12, and the other end portion 22 is in contact with the iron core 10 and forms a liquid outlet channel communicating with the first liquid cooling channel 12. Specifically, the two end portions 22 are respectively located at the left and right ends of the insertion portion. The left end portion 22 is in contact with the iron core 10 and forms a liquid inlet channel communicating with the first liquid cooling channel 12. The cooling medium can enter the first liquid cooling channel 12 from the liquid inlet channel. The right end portion 22 is in contact with the iron core 10 and forms a liquid outlet channel communicating with the first liquid cooling channel 12. After the cooling medium enters the first liquid cooling channel 12 from the liquid inlet channel, it can flow out from the liquid outlet channel. During the process of flowing inside the first liquid cooling channel 12, the cooling medium can cool the iron core 10 from inside the iron core 10, ensuring the cooling effect of the iron core 10.

[0048] A second liquid cooling channel 21 is formed inside the insertion slot portion 23. The insertion slot portion 23 and the two end portions 22 can be injection molded, which can play an insulating role. Through the second liquid cooling channel 21 inside the insertion slot portion 23, direct cooling of the winding 50 can be achieved, and the cooling effect is better.

[0049] Refer to Figures 1 - 4 As shown, at least two liquid inlet holes are provided on the end portion 22. At least one liquid inlet hole is provided on one side in the axial direction of the end portion 22, and at least another liquid inlet hole is provided outside in the radial direction of the end portion 22. At least two liquid inlet holes are all communicated with the liquid inlet channel. Specifically, in this embodiment, two liquid inlet holes are provided, namely a first liquid inlet hole 221 and a second liquid inlet hole 222. The first liquid inlet hole 221 is provided on the left side in the axial direction of the end portion 22, and the second liquid inlet hole 222 is provided outside in the radial direction of the end portion 22. The first liquid inlet hole 221 and the second liquid inlet hole 222 are communicated with each other. The cooling medium can enter the liquid inlet channel from the first liquid inlet hole 221 and the second liquid inlet hole 222, and then enter the first liquid cooling channel 12 from the liquid inlet channel to achieve cooling of the iron core 10. By providing two liquid inlet holes with different directions, the pressure and rate of the cooling medium entering the liquid inlet holes can be made more uniform, reducing the fluid resistance in the local area, improving the flow efficiency of the cooling medium, and further improving the cooling efficiency of the iron core 10, preventing the iron core 10 from overheating and affecting the performance, and also improving the reliability of the system. When one of the liquid inlet holes is blocked, the other liquid inlet hole can still operate.

[0050] Refer to Figures 1 - 4As shown, at least two liquid outlet holes are provided on the end portion 22. At least one liquid outlet hole is provided on one side in the axial direction of the end portion 22, and at least another liquid outlet hole is provided on the outer side in the radial direction of the end portion 22. The at least two liquid outlet holes are all communicated with the liquid outlet channel. Specifically, in this embodiment, two liquid outlet holes are provided, namely a first liquid outlet hole 223 and a second liquid outlet hole 224. The first liquid outlet hole 223 is provided on the right side in the axial direction of the end portion 22, and the second liquid outlet hole 224 is provided on the outer side in the radial direction of the end portion 22. The first liquid outlet hole 223 and the second liquid outlet hole 224 are communicated with each other. The cooling medium flows into the liquid inlet channel from the liquid inlet hole, then enters the first liquid cooling channel 12 to cool the iron core 10, then flows out from the first liquid cooling channel 12 into the liquid outlet channel, and finally flows out from the first liquid outlet hole 223 and the second liquid outlet hole 224. Similarly, by providing two liquid outlet holes with different directions, the pressure and rate of the cooling medium flowing out of the liquid outlet holes can be made more uniform, the fluid resistance in the local area can be reduced, the flow efficiency of the cooling medium can be improved, and further the cooling efficiency of the iron core 10 can be improved, preventing the iron core 10 from overheating and affecting the performance, and the reliability of the system can also be improved. When one of the liquid outlet holes is blocked, the other liquid outlet hole can still operate.

[0051] Referring to Figures 7 - 11 As shown, the iron core assembly of the motor further includes: a first liquid storage box 30 and a second liquid storage box 40. The first liquid storage box 30 and the second liquid storage box 40 are respectively provided at the two axial ends of the iron core 10. The liquid inlet ends of the first liquid cooling channel 12 and the second liquid cooling channel 21 are communicated with the first liquid storage box 30, and the liquid outlet ends of the first liquid cooling channel 12 and the second liquid cooling channel 21 are communicated with the second liquid storage box 40. Specifically, the first liquid storage box 30 is provided on the left side in the axial direction of the iron core 10. The first liquid storage box 30 can store the cooling medium, and the cooling medium in the first liquid storage box 30 can enter the first liquid cooling channel 12 and the second liquid cooling channel 21 to realize the cooling of the iron core 10 and the winding 50. The second liquid storage box 40 is provided on the right side in the axial direction of the iron core 10. After the cooling medium cools the iron core 10 and the winding 50, it flows into the second liquid storage box 40.

[0052] Wherein, the left side of the first liquid storage box 30 is a closed end, and the right side is an open end. The open end is in close contact with the end face of the iron core 10 to prevent the cooling medium from leaking. The right side of the second liquid storage box 40 is a closed end, and the left side is an open end. There is a gap between the open end and the end face of the iron core 10 to allow the cooling medium to flow out and ensure the normal circulation of the cooling medium.

[0053] Furthermore, the first liquid storage box 30 can be a plug-in end liquid storage box, and the second liquid storage box 40 can be a welding end liquid storage box.

[0054] Referring to Figures 7 - 11As shown, an inlet liquid cavity 31 is formed between the first liquid storage box 30 and the iron core 10. The inlet liquid cavity 31 is communicated with the inlet ends of the first liquid cooling channel 12 and the second liquid cooling channel 21. An inlet liquid port 32 communicated with the inlet liquid cavity 31 is arranged on the first liquid storage box 30. That is to say, the cooling medium enters from the inlet liquid port 32 of the first liquid storage box 30. The open end of the first liquid storage box 30 is tightly abutted against the end face of the iron core 10 to form the inlet liquid cavity 31, which can store the cooling medium. The cooling medium in the inlet liquid cavity 31 can enter the first liquid cooling channel 12 and the second liquid cooling channel 21 to realize the cooling of the iron core 10 and the winding 50.

[0055] Moreover, an outlet liquid cavity 41 is formed between the second liquid storage box 40 and the iron core 10. The outlet liquid cavity 41 is communicated with the outlet ends of the first liquid cooling channel 12 and the second liquid cooling channel 21. That is, the cooling medium of the first liquid cooling channel 12 and the second liquid cooling channel 21 can flow into the outlet liquid cavity 41. The outlet liquid cavity 41 can discharge the collected cooling medium from the gap between the open end and the end face of the iron core 10 to ensure the normal circulation of the cooling medium.

[0056] Refer to Figures 6 - 11 As shown, the iron core assembly of the motor further includes: a winding 50. A part of the winding 50 penetrates through the second liquid cooling channel 21 and the other part is respectively arranged in the inlet liquid cavity 31 and the outlet liquid cavity 41. Specifically, a part of the winding 50 is arranged in the insertion part of the end ring 20. A part of the winding 50 penetrates through the second liquid cooling channel 21. When the cooling medium flows into the second liquid cooling channel 21, it can flow through the gap between the insertion part and the winding 50, and can directly cool the winding 50, with a better cooling effect. The other part of the winding 50 is respectively arranged in the inlet liquid cavity 31 and the outlet liquid cavity 41. There is also cooling medium flowing in the inlet liquid cavity 31 and the outlet liquid cavity 41, which can directly cool the end part 22 of the winding 50, with a better cooling effect.

[0057] Refer to Figures 4 - 5 As shown, there are multiple iron core slots 11 and multiple first liquid cooling channels 12. The multiple iron core slots 11 and the multiple first liquid cooling channels 12 are arranged at intervals one by one. The multiple iron core slots 11 and the multiple first liquid cooling channels 12 can ensure that there is enough cooling medium flowing into the interior of the iron core 10, improving the cooling efficiency and cooling effect of the iron core 10. Moreover, the multiple iron core slots 11 and the multiple first liquid cooling channels 12 are evenly arranged at circumferential intervals on the iron core 10, improving the uniformity of the iron core 10 cooling and avoiding the problem of local overheating.

[0058] Moreover, the plug-in groove portion 23 includes a plurality of rectangular grooves which are respectively plugged into a plurality of iron core grooves 11. A second liquid cooling channel 21 is formed in each rectangular groove, and the winding 50 is plugged into the plurality of rectangular grooves. The cooling medium flows into the rectangular grooves to directly cool the winding 50. Among them, the four sides of the rectangular groove are closed, and openings are provided only at both ends of the iron core 10 in the left-right direction. In this way, the cooling medium entering the rectangular groove can accurately cool the winding 50 without leaking from other places, improving the reliability of the system.

[0059] In summary, referring to Figures 7 - 11 , the cooling medium enters the liquid inlet cavity 31 from the liquid inlet 32 of the first liquid storage box 30. A part of the cooling medium in the liquid inlet cavity 31 enters the first liquid cooling channel 12 through the first liquid inlet hole 221 and the second liquid inlet hole 222 at the end 22 of the end ring 20 to cool the iron core 10 inside the iron core 10. Subsequently, the cooling medium flows into the liquid outlet cavity 41 of the second liquid storage box 40 from the first liquid outlet hole 223 and the second liquid outlet hole 224, and flows out from the gap between the open end of the second liquid storage box 40 and the end face of the iron core 10. Another part of the cooling medium enters the plurality of rectangular grooves in the plug-in portion of the end ring 20, that is, the second liquid cooling channel 21, to cool the winding 50. The cooled cooling medium flows into the liquid outlet cavity 41 of the second liquid storage box 40 and flows out from the gap between the open end of the second liquid storage box 40 and the end face of the iron core 10.

[0060] The motor according to the second aspect embodiment of the present invention includes: a housing, a rotor and an iron core assembly of the motor. The rotor is arranged inside the housing, and the iron core assembly of the motor is arranged inside the housing, and the rotor rotates inside the iron core assembly of the motor. The motor of this embodiment has a relatively high cooling efficiency, and the working temperature can be maintained in a relatively low temperature range.

[0061] Among them, the motor can be a motor using oil cooling and flat wires.

[0062] The vehicle according to the third aspect embodiment of the present invention includes a motor.

[0063] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by 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. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0064] In the description of this specification, the description referring to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. means 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 utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example.

[0065] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model, and the scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A core assembly of a motor, characterized in that: include: An iron core (10), wherein the iron core (10) is provided with an iron core slot (11) and a first liquid cooling channel (12), the first liquid cooling channel (12) and the iron core slot (11) extending in the axial direction of the iron core (10), and the iron core slot (11) and the first liquid cooling channel (12) are arranged at intervals in the circumferential direction; An end ring (20), wherein a portion of the end ring (20) is arranged at both ends of the iron core (10) and another portion is arranged in the iron core slot (11), a portion of the end ring (20) is connected to the first liquid cooling channel (12), and a second liquid cooling channel (21) is formed in the other portion of the end ring (20).

2. The core assembly of the motor according to claim 1, characterized in that: The end ring (20) comprises: two end portions (22) and a plug-in slot portion (23), wherein the two end portions (22) are arranged at both ends of the plug-in slot portion (23), wherein one of the end portions (22) is in contact with the iron core (10) and forms a liquid inlet channel connected to the first liquid cooling channel (12), and the other end portion (22) is in contact with the iron core (10) and forms a liquid outlet channel connected to the first liquid cooling channel (12), and the second liquid cooling channel (21) is formed in the plug-in slot portion (23).

3. The core assembly of the motor according to claim 2, characterized in that: At least two liquid inlet holes are provided on the end portion (22), at least one of the liquid inlet holes is provided on one side of the end portion (22) in the axial direction, and at least another of the liquid inlet holes is provided on the outside of the end portion (22) in the radial direction, and at least two of the liquid inlet holes are connected to the liquid inlet channel.

4. The core assembly of the motor according to claim 2, characterized in that: At least two liquid outlet holes are provided on the end portion (22), at least one of the liquid outlet holes is provided on one side of the end portion (22) in the axial direction, at least another of the liquid outlet holes is provided on the outside of the end portion (22) in the radial direction, and at least two of the liquid outlet holes are connected to the liquid outlet channel.

5. The core assembly of the motor according to claim 1, characterized in that: Also includes: A first liquid storage box (30) and a second liquid storage box (40), wherein the first liquid storage box (30) and the second liquid storage box (40) are respectively arranged at two axial ends of the iron core (10), the liquid inlet ends of the first liquid cooling channel (12) and the second liquid cooling channel (21) are connected to the first liquid storage box (30), and the liquid outlet ends of the first liquid cooling channel (12) and the second liquid cooling channel (21) are connected to the second liquid storage box (40).

6. The core assembly of the motor according to claim 5, characterized in that: A liquid inlet cavity (31) is formed between the first liquid storage box (30) and the iron core (10), the liquid inlet cavity (31) is in communication with the first liquid cooling channel (12) and the liquid inlet ends of the second liquid cooling channel (21), and the first liquid storage box (30) is provided with a liquid inlet port (32) in communication with the liquid inlet cavity (31); and, A liquid outlet cavity (41) is formed between the second liquid storage box (40) and the iron core (10), and the liquid outlet cavity (41) is in communication with the first liquid cooling channel (12) and the liquid outlet ends of the second liquid cooling channel (21).

7. The core assembly of the motor according to claim 6, characterized in that: Also includes: A winding (50), wherein a portion of the winding (50) passes through the second liquid cooling channel (21) and another portion is respectively arranged in the liquid inlet cavity (31) and the liquid outlet cavity (41).

8. The core assembly of the motor according to claim 2, characterized in that: The iron core slots (11) and the first liquid cooling channels (12) are both multiple, and the multiple iron core slots (11) and the multiple first liquid cooling channels (12) are arranged one by one at intervals; and, The insertion slot portion (23) comprises a plurality of rectangular slots, the plurality of rectangular slots being respectively inserted into a plurality of the iron core slots (11), and a second liquid cooling channel (21) is formed in each of the rectangular slots.

9. A motor, characterized in that: include: shell; a rotor, the rotor being disposed in the housing; The core assembly of the motor according to any one of claims 1 to 8, wherein the core assembly of the motor is arranged in the housing, and the rotor rotates in the core assembly of the motor.

10. A vehicle, characterized in that: include: The motor as claimed in claim 9.

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