Multi-slot anti-interference motor of automobile air window cleaning pump

Abstract

The invention discloses a multi-slot anti-interference motor for an automobile air window cleaning pump, and the motor comprises a rotor assembly which comprises a rotor iron core and a commutator matched with the rotor iron core; the number of grooves of the rotor core and the number of grooves of the commutator are the same even number and are larger than or equal to 10. According to the anti-interference motor of the multi-slot automobile air window cleaning pump, through the arrangement of the rotor iron core with the even number of slots and the commutator, the motor windings are distributed on the circumference of the air gap in a balanced mode, radial magnetic pulling force generated by the motor tends to be balanced, vibration and torque pulsation of the motor are reduced, and therefore the radiation level of the motor is further reduced. The number of the grooves of the commutator and the number of the grooves of the rotor core are increased to 10, so that the inter-sheet voltage between the commutator sheets can be reduced, the grade of sparks generated during commutation is reduced, and the electromagnetic radiation level of the motor is reduced. The invention has the characteristics of simple structure, low cost, benefit for batch production and strong anti-interference capability.

Description

technical field [0001] The invention relates to the technical field of an automobile windscreen cleaning pump motor, in particular to an anti-interference motor for a multi-slot automobile windscreen cleaning pump. Background technique [0002] With the rapid development of new energy vehicles, there are more and more sensors and electronic equipment inside the vehicle, and the requirements for EMC of the vehicle electronic equipment are becoming more and more important. Headlight cleaning motors, wiper motors, etc. all need to have a certain EMC anti-interference ability. Since the above types of motors are generally DC brushed motors, the motor speed is usually relatively high, and the electromagnetic radiation generated by these motors during operation cannot interfere For the work of other electronic equipment in automobiles, the current mainstream manufacturers of new energy vehicles require the EMC anti-interference ability to reach the fifth level of the national stan...

AI Technical Summary

Problems solved by technology

[0003] Some cleaning pump motors in the prior art have no EMC anti-interference circuit, and some have EMC anti-interference circuit, but the circuit is simple, and the anti-interference ability cannot reach the lowest level of the national standard, or the anti-interference ability can pass the low-level standard but the circuit The design is complex, the motor structure needs to be redesigned, the manufacturing difficulty and cost are high, and it is not convenient for mass production

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