Liquid cooled motor

Abstract

The invention provides a liquid cooled motor. According to the liquid cooled motor, runners of a cooling device can be cleaned conveniently, and runner blockage cannot be easily caused. The liquid cooled motor comprises a motor casing (1), and a liquid cooled device (2) is mounted on the motor casing. The liquid cooled motor is characterized in that the liquid cooled device (2) is a cover body with an annular hole sleeved with the motor casing (1), groove type runners (3) are arranged in the annular hole wall of the cover body, a liquid inlet (8) and a liquid outlet (9) are communicated onto the runners (3), and a connector (4) for being connected with the motor casing (1) is arranged at one end of the cover body; a first sealing ring (6) is arranged at the junction of the connector (4) and the motor casing (1); the other end of the cover body is in sealing connection with the motor casing (1).

Description

technical field [0001] The invention relates to a liquid-cooled motor. Background technique [0002] In the prior art, in order to reduce the temperature rise of the motor and ensure the normal and stable operation of the motor, most motors are equipped with cooling devices, and the cooling devices are generally divided into two types: air cooling and liquid cooling. Air-cooled devices are not widely used due to their high noise and low cooling efficiency. Liquid cooling devices are widely used due to their quietness and high cooling efficiency. The liquid cooling devices used in the liquid-cooled motors in the prior art are all fixed on the casing of the motor by adopting a direct integrated structure. The two most commonly used installation methods are thermal sleeve and welding. The so-called thermal sleeve is to heat the cooling device to expand it and put it on the motor casing, and then let it cool to shrink it so that it can be fixed on the motor casing; welding is ...

AI Technical Summary

Problems solved by technology

The diameter of the flow channel is not very large due to space constraints. When the motor is used for a period of time, a thick scale will accumulate in the flow channel, which will block the flow channel and make it impossible to achieve circulating cooling; It will also prevent the cooling water from directly and fully contacting the motor casing, because the scale is attached to the surface of the motor casing, and it is easy to form a structure similar to the insulation layer, resulting in a decrease in the cooling efficiency of the liquid cooling device. The occurrence of the above two situations makes the user The flow channel in the water cooling device needs to be cleaned frequently, and the entire motor casing and water cooling device cannot be disassembled. If chemical methods are used to clean the scale, the motor casing and cooling device will be corroded, so often only the entire motor casing and water cooling device can be replaced

Similarly, if it is an oil cooling device, the cooling oil often contains various impurities, and the impurities in the oil will block the cooling flow channel during the use of the motor. At this time, the cooling device needs to be removed for cleaning. The oil cooling device cannot be disassembled, and the user can only replace the entire motor casing and oil cooling device

To sum up, the liquid-cooled motors in the prior art have the disadvantages that the flow channel of the cooling device is inconvenient to clean, and the flow channel is easily blocked.

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