Liquid cooling motor shell and liquid cooling motor using the same

Abstract

The invention relates to a liquid cooling motor shell and a liquid cooling motor using the same. The shell comprises a shell body with a liquid inlet and a liquid outlet. The shell body comprises an inner layer and an outer layer. A separation plate is arranged between the inner layer and the outer layer. The separation plate separates an annular cavity between the inner layer and the outer layerso as to form continuous cooling liquid channels in the cavities on two sides of the separation plate. Flow dividing plates which extend along circumference direction of the shell body are arranged inthe cooling liquid channels along the axis of the shell body at intervals, so the cooling liquid channels are divided into parallel type flow dividing channels with more than two sub-flow dividing channels. Ends of the parallel type flow dividing channels communicate with the liquid inlet and other ends of the parallel type flow dividing channels communicate with the liquid outlet. Cooling liquidenters from the liquid inlet, and flows into each flow dividing channel so that the inner layer of the cooling liquid channels and the shell body is rapidly spread with cooling liquid, and heat exchange is performed. The temperature on the motor shell is distributed uniformly. The flow dividing channels are short and resistance to the cooling liquid is small.

Description

technical field [0001] The invention relates to the field of liquid-cooled motors, in particular to a liquid-cooled motor housing and a liquid-cooled motor using the liquid-cooled motor housing. Background technique [0002] Currently commonly used liquid-cooled motors generally adopt continuous annular cooling water channels or axial cooling water channels on the motor housing. The heat of the electronic winding is transferred to the motor housing through the stator core, and the heat on the motor housing is passed through The coolant in the cooling water channel in the motor casing is taken away to complete the cooling and cooling cycle of the heat of the motor winding. [0003] The structure of the continuous annular cooling water channel on the motor housing is as follows: figure 1 As shown, the motor casing includes a hollow casing body 1 and a continuous annular water channel 2 arranged axially on the casing body 1. The cooling water enters from the water inlet at one...

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Problems solved by technology

However, it is necessary to process the diversion groove on the end cover, and the joint between the end cover and the casing needs to be waterproof and sealed, and the processing requirements are high.

[0004] The above two structures are a continuous and complete water channel. With the flow of coolant, the longer the water channel, the greater the resistance of the water channel, and the greater the power required by the cooling water pump, resulting in waste of energy consumption and large water channel resistance. The flow rate of each water channel is low, the heat dissipation effect is poor, and the temperature distribution on the shell is uneven, so the temperature cannot be accurately detected

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