Noise-reducing wiper motor

Abstract

The invention relates to a noise-reducing wiper motor, comprising a motor housing, a magnetic shoe assembly, an armature component, a gear housing, a brush component and a gear component. The armaturecomponent comprises a rotor shaft lever, a winding, and a commutator. The gear component includes a gear, a circuit board, and a gear shaft lever. The gear component further includes an angle sensor.The angle sensor includes a multi-pole magnetic block and two Hall sensors. The magnetic field direction on the Hall sensor surfaces is in parallel with and the axial direction of the gear. An original automatic resetter contact is replaced by the angle sensor, thereby realizing the contactless and noiseless commutation of the wiper motor, and effectively extending the service life of the wiper motor. A carbon brush is inclined so as not be directly connected to a brush holder, so that the noise of the motor is greatly reduced, and the motor can operate stably and quietly. The jamming of thecarbon brush and the large noise are completely solved.

Description

technical field [0001] The invention relates to a wiper motor, in particular to a noise-reducing and sound-absorbing wiper motor. Background technique [0002] The car wiper is an indispensable accessory for the car, and the purpose of the wiper motor is to install and drive the car wiper. Most of the traditional car wiper motors use one-way motors, including shells, resetter slip rings, and automatic resetters. Contacts, drive shafts, bearings, coil formers, commutators, springs, carbon brushes, and carbon brush holders are not only difficult to assemble, easily damaged, and have a short service life, but also have high noise and vibration, and are difficult to start frequently and start and Disconnection will produce defects such as sparks. The direct consequence of these problems is that the contacts of the motor are easily burnt out, which in turn leads to damage to the motor, resulting in a short service life, and the high noise during operation will bring troubles to t...

AI Technical Summary

Problems solved by technology

[0002] The car wiper is an indispensable accessory for the car, and the purpose of the wiper motor is to install and drive the car wiper. Most of the traditional car wiper motors use one-way motors, including shells, resetter slip rings, and automatic resetters. Contacts, drive shafts, bearings, coil formers, commutators, springs, carbon brushes, and carbon brush holders are not only difficult to assemble, easily damaged, and have a short service life, but also have high noise and vibration, and are difficult to start frequently and start and Disconnection will produce defects such as sparks. The direct consequence of these problems is that the contacts of the motor are easily burnt out, which in turn leads to damage to the motor, resulting in a short service life, and the high noise during operation will bring troubles to the driver. come discomfort

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