A low-pressure casting method of an aluminum alloy motor casing with a built-in spiral coil water channel

A technology of spiral coil and low-pressure casting, which is applied in the field of new energy motor shell production, can solve the problems of spiral water-cooling cycle through holes, difficulty in cleaning residual sand, and easy fracture of spiral sand core, so as to save casting auxiliary process and auxiliary The time, production cycle and production efficiency are improved, and the processing technology is simple and reliable.
CN107498025BActive Publication Date: 2020-06-26福建巨能精密铸造科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
福建巨能精密铸造科技有限公司
Publication Date
2020-06-26

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Abstract

The invention discloses a low-pressure casting method of an aluminum alloy motor shell internally provided with a spiral coil pipe water way. A stainless steel or copper or aluminum spiral coil pipe water way is prefabricated, a water inlet and a water outlet are formed in the side faces of the spiral coil pipe water way, a boss for positioning is arranged on the water inlet and the water outlet, according to the structure of the spiral coil pipe water way, a motor shell low-pressure casting mold is prepared, the spiral coil pipe water way is positioned and assembled in the motor shell low-pressure casting mold, the assembled motor shell low-pressure casting mold is placed above a heat preservation furnace of a low-pressure casting machine to be subject to low-pressure casting forming, and through low-pressure casting, the prefabricated spiral coil pipe water way is casted in the aluminum alloy motor shell. The casting auxiliary process and the auxiliary time can be greatly saved, production efficiency is improved, after casting, no sand core in the motor shell needs to be cleaned, the casted aluminum alloy motor shell is few in defect, high in precision, and not prone to deformation, cracking and water leaking, the aluminum alloy motor shell is high in casting quality, and the production cost is low.
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Description

technical field

[0001] The invention relates to the technical field of new energy motor casing production, in particular to a low-pressure casting method for an aluminum alloy motor casing with a built-in spiral coil water channel. Background technique

[0002] New energy vehicles are electric vehicles powered by electric energy. The electric drive and control system is the core of the electric vehicle. The drive motor is an important part of the electric drive and control system. The drive motor generates a lot of heat during operation. In order to ensure that the electric vehicle can last For stable operation, it is necessary to cool the drive motor during operation. In order to ensure the cooling effect, it is best to design a motor casing with a water-cooled circulation channel inside. At present, it is usually installed in the motor casing with a better cooling effect. Spiral water cooling circulation channel.

[0003] Since the aluminum alloy motor casing is a thin-wa...

Claims

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