The principle of DC brushless micro pump

DC brushless micro-pump is a device that uses the principle of electromagnetic induction to convert electrical energy into mechanical energy. Its main principles are as follows:

1. Motor part: DC brushless motor is composed of rotor and stator. The rotor is composed of permanent magnets and magnetic inductors, and the stator is composed of coils and magnets. When current passes through the stator coils, a rotating magnetic field is generated, which interacts with the permanent magnets on the rotor, causing the rotor to spin.

2. Pump part: Micro pumps usually adopt a centrifugal pump structure. The main parts of the pump include pump body, impeller, bearings and sealing rings. When the rotor starts to rotate, it drives the impeller to rotate together, and the impeller generates centrifugal force to suck the liquid from the inlet, and push the liquid to the outlet through the movement of the pump body and the impeller.

3. Control part: Brushless DC micro pumps usually need to be equipped with electronic controllers to control the operation of the motor. The controller can control the speed and direction of the motor to achieve the best performance under different working conditions.

To sum up, the DC brushless micro pump uses the principle of electromagnetic induction to convert electrical energy into mechanical energy, and through the action of the rotor and stator of the motor part, it drives the impeller of the pump part to rotate, thereby realizing the suction and push of liquid. The controller plays the role of adjusting the operation of the motor to meet the requirements under different working conditions.

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