Automobile electronic water pump with side-mounted controller and attached with cooling flow channel and automobile

Abstract

The invention relates to an automobile electronic water pump with a side-mounted controller and attached with a cooling flow channel and an automobile. The water pump comprises a pump shell, a motor,an impeller and a controller, wherein the pump shell is formed with a pump cavity, the motor is connected with the pump shell through a pump shaft and is arranged in the pump cavity, the impeller is connected with the pump shaft, and the controller is connected with the motor and arranged outside the pump shell; and the water pump further comprises a heat dissipation cover plate and a notch, wherein the heat dissipation cover plate is arranged near the controller and used for dissipating heat, the notch is arranged near the impeller, a cooling cavity for allowing cooling liquid to circulate isarranged in one side of the heat dissipation cover plate, a first flow channel is formed between the cooling cavity and a pump cavity close to one side of the impeller, a second flow channel is formed between the cooling cavity and the notch, and the cooling liquid flows into the cooling cavity from the pump cavity through the first flow channel, and then flows into the pump cavity from the cooling cavity through the second flow channel so as to cool the controller. The water pump has the advantages of being simple in structure, convenient in operation, and capable of reducing the heat quantity of the controller and avoiding the clamping stagnation.

Description

technical field [0001] The invention relates to an automobile electronic water pump with a controller installed on the side and with a cooling channel and the automobile, belonging to the technical field of water pump design. Background technique [0002] With the increasingly stringent emission requirements of fuel vehicles and the development of new energy vehicles, the water pumps used to provide fluid power for the cooling circuits of key parts such as engines and batteries will increasingly use electronic water pumps. The PCB control module that comes with the electronic water pump will generate a certain amount of heat. If the heat cannot be dissipated properly, the excessive heat on the PCB will directly cause the pump to fail. At present, the wet rotor electronic water pump is mainly used in the market. In this structure, the PCB control device is arranged at the other end away from the hydraulic part of the pump, and the fluid flows through the length of the motor t...

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Problems solved by technology

Due to the small flow gap, the actual flow rate is limited, and the shear friction loss is relatively large. When the medium inevitably contains impurities, it is easy to get stuck, and a large load is generated in an instant to cause the controller to overheat and burn out; and the wet rotor The overall efficiency of the water pump is low, the heat is large, and the energy efficiency is uneconomical

In addition, such a structure results in a relatively long overall length of the electronic water pump. In some engine compartments with limited axial distance, such a design cannot be placed

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