Introduction to the Principle of
NF DC brushless magnetic pumps, as the name suggests, use magnetic force to transfer kinetic energy in their structure, and they are driven by DC brushless motors, hence the general term: DC brushless magnetic pumps.
Our pumps consist of four main parts: the pump head, the magnetic actuator, the DC brushless motor, and the controller. The magnetic actuator consists of a stator and a magnetic rotor, separated by a thin wall, eliminating the need for traditional mechanical shaft seals and thus providing a completely sealed system.
The motor's torque is generated by energizing the coils on the silicon steel sheets (stator), creating a magnetic field that drives the permanent magnets (rotor). Magnetizing the magnets at n (n is an even number) levels creates a fully coupled magnetic system. When the magnetic poles generated by the stator coils and the magnets are opposite (i.e., the displacement angle between the two poles is 0), the magnetic energy of the system is at its lowest. When the poles rotate to the same poles (i.e., the displacement angle between the two poles is Φ = 2π/n), the magnetic energy of the system is at its maximum. After the external force is removed, the magnetic poles of the magnetic system repel each other, and the magnetic force will restore the magnet to its lowest magnetic energy state. This causes the magnet to move, driving the magnetic rotor to rotate.
The stator and rotor of the magnetically isolated pump are completely isolated, completely avoiding the liquid leakage problems present in traditional brushed DC water pumps. The IP67 waterproof rating design effectively improves the pump's service life and performance.
Electronic Pump Protection Functions
1. Stalled Rotor Protection;
2. Reverse Connection Protection;
3. Overvoltage/Undervoltage Protection;
4. Dry Run Protection;
5. Overcurrent Protection;
6. Phase Loss Protection, etc.
