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The main application functions of automotive electronic water pumps in new energy vehicles

As the name suggests, an electronic water pump is a pump with an electronically controlled drive unit. It mainly consists of three parts: overcurrent unit, motor unit and electronic control unit. With the help of the electronic control unit, the working state of the pump can be adjusted freely, such as: control the pump start/stop, flow control, pressure control, anti-dry running protection, self-maintenance and other functions, and can control the pump through external signals.

Electric water pump01
Electric water pump02

The new energy vehicle cooling water pump is a mechanical device used to accelerate the flow cycle of vehicle coolant.In order to ensure the normal use of electrical components of new energy vehicles, the inlet coolant temperature is not higher than 65°C, so the cooling circuit composed of PTC coolant heater,electric automotiver radiator, electronic water pump, motor controller, and drive motor series is a low-temperature cooling cycle (relative to the engine cooling circuit). The main function of the electric water pump is to meet the technical requirements for thermal management of the drive motor, electric components, etc. under any working conditions of the vehicle. In new energy vehicles, the need for electric water pumps varies depending on the components to be cooled. Generally, the power demand of electric water pumps for cooling drive motors and electrical components of passenger cars is usually below 150W, and electric water pumps driven by 12V DC motors can be used, and the water pumps can be in the form of canceling static and dynamic seals.

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radiator

New energy electric vehicle cooling cycle electronic pump Application: Widely used in the heating cycle and cooling cycle system of new energy passenger cars, new energy passenger cars, hybrid cars, trains and ships. Pure electric vehicle motor and control system cooling cycle, new energy vehicle battery cooling and heating cycle, heating air conditioning cycle. Centrifugal pump, magnetic drive (shielded pump structure), high-efficiency brushless motor, low power consumption, high efficiency and long service life. , has a wide operating temperature range, with pwm signal control speed regulation, constant flow control, anti-reverse connection protection, anti-dry running protection, overvoltage, overcurrent protection, overload, overtemperature protection.

Power supply mode: battery-powered water pump flow rate, the ambient temperature of the water pump: -40°C-120°C, during the installation process, try to avoid close to the three-way catalyst, exhaust pipe and engine to ensure that the ambient temperature meets the requirements. The water level of the water pump in the vehicle cooling system should be as low as possible to prolong the service life of the water pump. In the installation and layout of the water pump, the number of elbows in the waterway should be reduced as much as possible to reduce water resistance; the pipeline at the water inlet and outlet, if the actual situation permits, it is best to ensure that there are no elbows within 20cm. The water pump must pay attention to dust prevention during use. If the dust environment is harsh, the service life of the water pump will be shortened. Pay attention to the cleanliness of the water during use, so as not to cause the pump to be blocked and the impeller to be stuck, thereby reducing the service life of the pump.

EV HEATER

Post time: Mar-08-2023