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Motor machine shell water channel structure and motor

A water channel and casing technology, applied in the field of heat dissipation of new energy vehicle motors, can solve the problems of high outlet temperature, low inlet temperature rise, and low water pump efficiency, so as to improve convective heat transfer capacity, increase turbulent flow, and reduce temperature poor effect

Pending Publication Date: 2018-07-20
ZHONGSHAN POLYTECHNIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The pressure drop of the reentrant water channel is large, and the efficiency of the water pump is low
The spiral waterway is relatively smooth and the pressure drop is small, but its inlet and outlet are arranged at both ends of the motor, which has an obvious temperature gradient with a low temperature rise at the inlet and a rise in the outlet temperature, which is unfavorable for the uniform temperature control of the motor

Method used

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  • Motor machine shell water channel structure and motor
  • Motor machine shell water channel structure and motor
  • Motor machine shell water channel structure and motor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] On the one hand, if figure 1 As shown in -3, the water channel structure of the motor casing provided by this embodiment includes: an inner casing 100 and an outer casing 200; the outer casing 200 is installed outside the inner casing 100, and the inner casing 100 A cavity for cooling medium is formed between the casing 100 and the outer casing 200; the outer surface of the inner casing 100 is provided with a water channel 300, and the width of the water channel 300 from the water inlet 330 to the water outlet 340 is gradually Decrease to increase the convective heat transfer capacity of the cooling medium at the water outlet 340 to ensure the temperature uniformity of the motor.

[0039] to combine figure 1 As shown, when working, the waterway structure of the motor casing is mainly composed of two parts: the outer casing 200 and the inner casing 100. After the outer casing 200 and the inner casing 100 are assembled, the connection between the outer casing 200 and the...

Embodiment 2

[0055] On the basis of Embodiment 1, the motor provided in this embodiment includes the motor casing water passage structure, which has all the advantages of the above motor casing water passage structure, and will not be repeated here.

[0056] It should be pointed out that the motor also includes other structures, but all of them have been disclosed as prior art, and will not be repeated here.

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Abstract

The invention provides a motor machine shell water channel structure and a motor, and relates to the technical field of heat dissipation of a new energy automobile motor. The motor machine shell waterchannel structure comprises an inner machine shell and an outer machine shell; the outer machine shell is mounted on the exterior of the inner machine shell; a hollow cavity for allowing a cooling medium to pass through is formed between the inner machine shell and the outer machine shell; a water channel is formed in the outer surface of the inner machine shell; and the width of the water channel is gradually reduced from the water inlet to the water outlet so as to improve the convection and heat transfer capability of the cooling medium in the water outlet and ensure the thermal homogeneity of the motor, thereby solving the technical problem of disadvantage in uniform temperature control of the motor.

Description

technical field [0001] The invention relates to the technical field of heat dissipation of a motor of a new energy vehicle, in particular to a water channel structure of a motor casing and a motor. Background technique [0002] New energy motors have been vigorously developed because they can solve the two major problems of energy crisis and environmental pollution in today's society. As the main component of new energy motors, automotive motors are developing towards high power density and miniaturization. However, as the power density of the motor increases and the volume decreases, the heat load per unit volume of the motor becomes larger and larger, and excessive temperature rise seriously affects the performance and reliability of the motor. Therefore, the control of the temperature rise of the motor has become the key to the design of the motor. The forced water cooling heat dissipation system has become the main solution for the heat dissipation of automotive motors...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K5/20H02K9/19
CPCH02K5/20H02K9/19
Inventor 王升平何佳兵吴丹景玉军郭美华
Owner ZHONGSHAN POLYTECHNIC
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