Electric vehicle battery water pump, the circular motion of the motor makes the diaphragm in the pump move reciprocally through the mechanical device to compress and stretch the air in the pump chamber (fixed volume); Under the action of one-way valve, a positive pressure is formed at the outlet (the actual output pressure is related to the power received by the pump outlet and the characteristics of the pump); A vacuum is formed at the water outlet, resulting in a pressure difference with the external atmospheric pressure.
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