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CN-224218194-U - Motor and vehicle

CN224218194UCN 224218194 UCN224218194 UCN 224218194UCN-224218194-U

Abstract

The application discloses a motor and a vehicle, wherein the motor comprises a shell and guide plates, the shell is provided with a cooling flow channel, a liquid inlet and a liquid outlet which are communicated with the cooling flow channel and are positioned at two axial ends of the shell, and the guide plates are arranged in the cooling flow channel, wherein the axial distance between adjacent guide plates adjacent to the liquid outlet is smaller than the axial distance between adjacent guide plates adjacent to the liquid inlet. Therefore, the cooling flow channel and the heat source are limited in the motor through the shell, cooling liquid is injected into the cooling flow channel, and the plurality of guide plates are arranged along the flowing direction of the cooling liquid, so that the flowing area closer to the liquid outlet area is smaller, and the flow speed of the cooling liquid is higher by changing the distance between the adjacent guide plates. Like this, can compensate the heat exchange efficiency between coolant liquid and the heat source that is close to the liquid outlet region for the cooling runner can carry out even heat dissipation to the motor, in order to prevent that the coolant liquid that is close to the liquid outlet region from being difficult to the phenomenon emergence of cooling down to the motor.

Inventors

  • ZHANG XINYUE
  • YOU TAO
  • LI LIANGHUI
  • SU WEI

Assignees

  • 北京新能源汽车股份有限公司

Dates

Publication Date
20260508
Application Date
20250325

Claims (10)

  1. 1. An electric machine, comprising: The shell (10) is provided with a cooling flow passage (a), and is communicated with the cooling flow passage (a), and a liquid inlet (11) and a liquid outlet (12) are arranged at two axial ends of the shell (10); A deflector (20), the deflector (20) being arranged in the cooling flow channel (a), wherein The axial distance between the adjacent guide plates (20) adjacent to the liquid outlet (12) is smaller than the axial distance between the adjacent guide plates (20) adjacent to the liquid inlet (11).
  2. 2. The electric machine according to claim 1, characterized in that the deflector (20) is configured as a spiral plate segment and in that a plurality of the spiral plate segments are connected in sequence.
  3. 3. The electric machine according to claim 1, wherein the housing (10) includes an inner housing (14) and an outer housing (13), the cooling flow passage (a) is defined between the inner housing (14) and the outer housing (13), and the baffle (20) is formed in the inner housing (14), and the liquid inlet (11) and the liquid outlet (12) are formed in the outer housing (13).
  4. 4. A motor according to claim 3, characterized in that a heat radiation protrusion (131) is provided on a side surface of the outer casing (13) facing the inner casing (14).
  5. 5. The motor according to claim 4, wherein the heat radiation protrusions (131) are plural, and the plural heat radiation protrusions (131) are arranged in an array on a side surface of the outer case (13) facing the inner case (14).
  6. 6. The motor according to claim 4, characterized in that the heat radiation protrusion (131) is constructed in a hollow structure, and the heat radiation protrusion (131) is filled with a phase change cooling medium.
  7. 7. The motor according to claim 6, characterized in that the heat radiation protrusion (131) is formed with an injection portion (1311), the injection portion (1311) being for injecting or extracting the phase change cooling medium.
  8. 8. The motor according to claim 7, wherein the heat radiation protrusion (131) is configured to have a circular shape at least in part of a cross-sectional profile, and an injection hole is opened in the circular portion, and the injection portion (1311) is configured to be a sealing rubber and to be blocked in the injection hole.
  9. 9. The electric machine according to claim 4, characterized in that the deflector (20) is radially spaced apart from the heat dissipating boss (131).
  10. 10. A vehicle, characterized in that an electric machine as claimed in any one of claims 1-9 is provided.

Description

Motor and vehicle Technical Field The application relates to the technical field of motors, in particular to a motor and a vehicle. Background In the related art, the motor generates heat in the working process, so that a cooling flow channel is required to be arranged around the motor to cool the motor, but the cooling effect generated by the cooling flow channel in the conventional motor is uneven, so that the heat dissipation and cooling of the cooling flow channel are poor. Disclosure of utility model The present application aims to solve at least one of the technical problems existing in the prior art. Therefore, an object of the present application is to provide an electric motor and a vehicle, in which the electric motor has a cooling flow path, and the cooling flow path can uniformly cool the electric motor to maintain a good cooling effect. In a first aspect, an embodiment of the application provides a motor, which comprises a shell and guide plates, wherein the shell is provided with a cooling flow channel, a liquid inlet and a liquid outlet, the liquid inlet and the liquid outlet are communicated with the cooling flow channel, and the guide plates are arranged in the cooling flow channel, and the axial distance between adjacent guide plates adjacent to the liquid outlet is smaller than the axial distance between adjacent guide plates adjacent to the liquid inlet. According to the motor provided by the embodiment of the application, the cooling flow channel and the heat source are limited in the motor through the shell, the cooling flow channel is filled with cooling liquid, and the plurality of guide plates are arranged along the flowing direction of the cooling liquid, so that the flowing area closer to the liquid outlet area is smaller and the flow speed of the cooling liquid is higher by changing the distance between the adjacent guide plates. Like this, can compensate the heat exchange efficiency between coolant liquid and the heat source that is close to the liquid outlet region for the cooling runner can carry out even heat dissipation to the motor, in order to prevent that the coolant liquid that is close to the liquid outlet region from being difficult to the phenomenon emergence of cooling down to the motor, and then has improved the cooling effect to the motor. According to some embodiments of the application, the baffle is configured as a spiral plate segment, and the plurality of spiral plate segments are connected in sequence. According to some embodiments of the application, the shell comprises an inner shell and an outer shell, a cooling flow channel is defined between the inner shell and the outer shell, the guide plate is formed on the inner shell, and the liquid inlet and the liquid outlet are formed on the outer shell. According to some embodiments of the application, the heat radiation protrusion is provided on a side surface of the outer shell facing the inner shell. According to some embodiments of the application, the plurality of heat dissipating protrusions are arranged in an array on a surface of the outer shell facing the inner shell. According to some embodiments of the application, the heat dissipating protrusion is configured as a hollow structure, and the heat dissipating protrusion is filled with a phase change cooling medium. According to some embodiments of the application, the heat radiation protrusion is formed with an injection part for injecting or extracting the phase change cooling medium. According to some embodiments of the present application, the heat dissipating protrusion is configured to have a circular shape at least in part of a cross-sectional profile, and the circular portion is provided with an injection hole, and the injection part is configured to be sealed with rubber and is blocked at the injection hole. According to some embodiments of the application, the baffle is radially spaced from the heat dissipating boss. In a second aspect, the present application proposes a vehicle provided with the motor in the above-described embodiment. Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application. Drawings The foregoing and/or additional aspects and advantages of the application will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which: fig. 1 is a schematic structural view of an electric motor according to an embodiment of the present application; Fig. 2 is a schematic cross-sectional structure of an electric motor according to an embodiment of the present application; FIG. 3 is a schematic view of an inner housing and baffle structure according to an embodiment of the present application; FIG. 4 is a schematic illustration of a housing structure according to an embodiment of the application; FIG.