Permanent magnet synchronous draining pump and a water tank water cooling system

Abstract

The invention discloses a water tank water cooling system for a permanent magnet synchronous draining pump, which comprises a closed water tank, wherein the closed water tank is a tank body designed according to the outer profile of the stator iron core of a permanent magnet synchronous water pump and has an accommodating cavity capable of accommodating the stator iron core; and a heat-conductingwall is formed on the stator iron core contacting part of the accommodating cavity, and the heat-conducting wall is made of metal material with high heat conductivity. The invention also discloses the permanent magnet synchronous water pump using the water tank water cooling system. In the invention, by arranging the independent water tank water cooling system in a pump body, the cooling liquid in a water cooling system and fluid pumped by the water pump are independent of each other, so that the impurities and scale in the pumped fluid are prevented from polluting the pump body and outside water of the machine. The box body is independently designed, can be detached and separated from the pump body, is convenient to clean and maintain, and can be matched with the water pump of the same model.

Description

technical field [0001] The invention relates to the technical field of permanent magnet synchronous drainage pumps. Background technique [0002] The water pump generates a lot of heat when it is working, so it needs to be dissipated to cool down. The cooling method of the existing permanent magnet synchronous water pump is carried out through the natural radiation and heat dissipation of the stator core of the motor, and the heat dissipation effect is limited. There is also a way to dissipate the heat of the iron core through the self-contained water tank integrated on the pump body to achieve the purpose of cooling, such as Figure 1a and Figure 1b shown. However, because this method uses the water pumped by the working water pump to cool down the iron core, it is affected by the impurities in the pumped water, so that the pump body itself forms a water tank with more impurities and scale, and the pump body forms the water in the water tank itself. Long-term storage an...

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Problems solved by technology

[0006] The cooling water in the above patents all comes from the water inlet of the water pump, and the pumped working fluid itself is used to cool the water pump motor. Therefore, there are many impurities and scale remaining in the cooling system and even the pump body, which pollutes the water quality of the external machine. The problem

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