Automobile electronic water pump

Electronic water pump is a pump with an electronic control drive unit. It is mainly composed of three parts: overcurrent unit, motor unit and electronic control unit. With the help of the electronic control unit, the working status of the pump can be adjusted freely, for example: control the start/stop of the pump, flow control, pressure control, anti-dry running protection, self-maintenance and other functions, and can control the pump through external signals.

The magnet and impeller of the brushless DC centrifugal water pump are integrally formed to form the magnetic rotor of the motor. There is a shaft sleeve directly injection molded in the middle of the rotor. The shaft sleeve is a high-performance abrasive graphite fixed in the rotor body, and the motor stator and circuit board pump body are filled with epoxy resin. There is a cavity between the stator and the rotor. The pump body cavity is connected with the rotor cavity of the motor. The rotor cavity of the motor is completely isolated from the motor stator and motor controls. The rotating shaft is made of high-smooth, high-strength zirconia. The shaft connects the motor and the pump body into one, without the need for a conventional mechanical shaft seal, so it is completely sealed and leak-proof.

The electronic water pump is a device that uses an electric motor to circulate water or other fluids. This type of pump is commonly used in automotive engines to circulate coolant, but it can also be used in other applications where fluid needs to be moved. Electronic water pumps are commonly used in new energy vehicles, such as hybrid and electric vehicles, due to their efficiency and controllability. Some of the applications of electronic water pumps in new energy vehicles include:

1.      Cooling of the battery pack: Electronic water pumps are used to circulate coolant through the battery pack to maintain optimal temperature and prevent overheating, which can damage the battery cells and reduce their lifespan.

2.      Cooling of the power electronics: In electric vehicles, electronic water pumps are used to circulate coolant through the power electronics, including the motor controller and inverter, to prevent overheating and ensure optimal performance.

3.      Engine cooling: In hybrid vehicles, electronic water pumps are used to circulate coolant through the engine to maintain optimal temperature and improve efficiency. The electronic control of the water pump allows for precise control of the coolant flow, optimizing engine cooling performance.

4.      HVAC system: Electronic water pumps can also be used in the heating, ventilation, and air conditioning (HVAC) system of new energy vehicles to circulate coolant and provide temperature control for the cabin.

Electronic water pumps offer several advantages over traditional mechanical water pumps. Some of these advantages include:

1.      Improved Efficiency: Electronic water pumps are more efficient than mechanical water pumps as they can be controlled to only operate when needed. This reduces energy consumption, which can lead to improved fuel economy and reduced emissions.

2.      Better Control: Electronic water pumps can be precisely controlled to maintain optimal coolant flow and temperature, improving engine performance and reliability.

3.      Reduced Weight: Electronic water pumps are generally lighter and more compact than mechanical water pumps, which can help to reduce the overall weight of the vehicle.

4.      Increased Reliability: Electronic water pumps have fewer moving parts than mechanical water pumps, reducing the risk of failure and improving overall reliability.

5.      Quieter Operation: Electronic water pumps are typically quieter than mechanical water pumps, which can improve the overall driving experience.

6.      Flexibility: Electronic water pumps can be used in a wide range of applications, including hybrid and electric vehicles, where they play a key role in managing the thermal management system.

Overall, electronic water pumps are a popular choice for modern engines, particularly those with hybrid or electric powertrains, where efficiency and weight savings are critical. And electronic water pumps are a key component in the thermal management system of new energy vehicles, helping to improve efficiency, extend battery life, and optimize performance.