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Motor and electric vehicle

A technology of cooling channel and axial width, applied in electric vehicles, motors, electric components, etc., can solve problems such as power loss, motor efficiency drop, motor local overheating, etc., to reduce power loss, eliminate local overheating, and improve work. The effect of efficiency

Active Publication Date: 2017-09-05
SCHAEFFLER TECH AG & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The problem solved by the invention is that the existing motor has the problem of local overheating, which causes power loss and reduces the working efficiency of the motor

Method used

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  • Motor and electric vehicle
  • Motor and electric vehicle
  • Motor and electric vehicle

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Experimental program
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Embodiment Construction

[0022] Aiming at the problems existing in the prior art, the inventor found through research that the inlet and outlet of the cooling channel are located on both sides of the partition, which forms a dead water zone near the partition between the inlet and the outlet.

[0023] During the coolant circulation process, due to the partition, the low-temperature coolant flowing from the input port will flow towards the output port, and only a small amount of low-temperature coolant will flow to the cooling channel area between the partition and the input port, so that The coolant in the area of ​​the cooling channel between the partition and the inlet is in a stagnant state for a long time.

[0024] Correspondingly, the low-temperature coolant from the input port flows into the high-temperature coolant after flowing through the cooling channel, and the high-temperature coolant directly flows into the output port and is output, while only a small amount of high-temperature coolant fl...

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PUM

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Abstract

A motor and an electric vehicle are provided. The motor comprises a casing and a cooling channel in the casing. The cooling channel surrounds the central axis of the casing, and is internally provided with a partition. The partition divides the cooling channel into two sub channels along the axis. The partition is provided with a connecting channel for communicating the two sub channels. The two sub channels are respectively provided with an inlet and an outlet, and the inlet and the outlet are spaced apart from the connecting channel along the circumference. According to the technical scheme, as a first sub channel and a second sub channel of the cooling channel are connected by the connecting channel, the coolant in the first sub channel, the second sub channel and the connecting channel flows constantly, and no dead water zone is formed. The coolant in the whole cooling channel flows constantly, and the forming probability of dead water zones is reduced. Local overheating of the motor is eliminated. Power consumption is reduced. The work efficiency of the motor is improved.

Description

technical field [0001] The invention relates to a motor and an electric vehicle. Background technique [0002] Electric vehicles are powered by on-board power supplies, and use electric motors to convert electrical energy into mechanical energy to drive wheels. An existing electric motor for an electric vehicle includes a housing, in which an annular cooling passage is provided around the central axis of the housing, and a coolant can circulate in the cooling passage, and the coolant can absorb the energy of the motor during the circulation process. The generated heat realizes the purpose of cooling the motor. [0003] A partition member is provided in the cooling passage to partition the cooling passage along the circumferential direction. The cooling channel has an input port and an output port, and the input port and the output port are both close to the partition and respectively located on two sides of the partition along the circumferential direction. The low-temper...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K5/20
CPCH02K5/20Y02T10/64
Inventor 饶玲军陈苏涛
Owner SCHAEFFLER TECH AG & CO KG
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