A permanent magnet DC motor
A permanent magnet DC, motor housing technology, applied in electric components, electrical components, electromechanical devices, etc., can solve the problems of inaccurate motor commutation, large rotor temperature rise, affecting motor performance, etc., and achieve high reliability. , the effect of stable work
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[0018] As shown in Figure 1, Figure 2, Figure 3, Figure 4: The permanent magnet DC motor of this embodiment includes: a stator 2 and a rotor 3 are arranged in the motor housing 1, a winding coil 4 is arranged on the stator core, and the rotor The rotating shaft 5 is provided with a magnetic core composed of disk-shaped steel sheets 6. A rotor magnet 7 is fixed on the periphery of the magnetic core. The motor is provided with a position sensing element including a sensor magnet 8 and three Hall elements 9. The sensor magnet 8 is arranged in the magnet seat 10, the magnet seat 10 is fixed on the motor shaft 5 extending out of the end cover 11, and the sensor magnet and three Hall elements are arranged on the end cover 11 and the dust cover 12. In the cavity.
[0019] The sensor magnet 8 is a magnetic ring formed by splicing multiple discrete magnetic poles.
[0020] The magnetic poles of the rotor magnetic tiles are assembled by at least two magnetic tiles 7 of the same polarity. Th...
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