Electronic water pump

Abstract

The invention provides an electronic water pump. The electronic water pump comprises a motor shell, a stator winding, an isolation sleeve, an impeller rotor assembly and a pump cover; the outer side of the motor shell is connected with a driving plate assembly; the stator winding is arranged on the inner side of the motor shell in a sleeving manner, is electrically connected with the driving plateassembly, and can generate a rotating magnetic field under the control of the driving plate assembly; the isolation sleeve is arranged on the inner side of the stator winding in a sleeving manner, moreover, an annular cavity is formed inside the isolation sleeve, the front end of the isolation sleeve is an opened end, moreover, the rear end of the isolation sleeve is a closed end, and a mandrel is axially installed in the center of the isolation sleeve; the impeller rotor assembly is arranged in the annular cavity, is rotatably arranged outside the mandrel in a sleeving manner and comprises an impeller and a rotor which is connected with the impeller and opposite to the stator winding, and the rotor drives the impeller to rotate under the action of the rotating magnetic field; and the pump cover is hermetically connected to the opened end of the isolation sleeve, and is in butt joint with the isolation sleeve to form a pump cavity for containing the impeller, and a water inlet and a water outlet which communicate with the pump cavity correspondingly are formed in the pump cover. According to the electronic water pump, the axial size is small, the structure is simple and compact, and the heat dissipation performance is good.

Description

technical field [0001] The invention relates to the field of water pumps, in particular to an electronic water pump with a compact structure. Background technique [0002] Electronic water pumps are widely used in automobile heat dissipation circulation systems to provide circulation power for heat dissipation medium in the heat dissipation circulation system. After the car is started, a large number of heat dissipation components such as the engine and electronic control components will generate a large amount of heat, and the generated heat must be discharged in time through the heat dissipation circulation system, so that a large number of heat dissipation components such as the engine and electronic control components can operate within a certain temperature range. The electronic water pump is the power source for the circulation of the heat transfer medium in the heat dissipation system. [0003] The first type of water pump in the prior art uses a brushed motor as the...

AI Technical Summary

Problems solved by technology

The disadvantages are that the axial size is large, the axial space occupied is large, and the structure is complex

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