Front wiper motor

Abstract

The invention discloses a front wiper motor. The front wiper motor comprises a motor housing (1), an armature (2), a brush holder ring (3), a decelerator housing (4), a worm gear part (5) and a gland part (7). The front wiper motor is characterized in that the brush holder ring (3) is further electrically connected with an integrated block (6), and the integrated block (6) is connected with an external plug; the brush holder ring (3) is provided with a through groove (8); the decelerator housing (4) is provided with two U-shaped grooves (9); and after the brush holder ring (3) is connected with the decelerator housing (4), the through groove (8) are aligned with the U-shaped grooves (9), the three grooves are identical in width, and the width of the grooves is larger than the diameter of a worm shaft (11) of the armature (2) by 1-3mm. The front wiper motor is redesigned in the aspects of: motor assembling convenience, motor sealing performance, gland plug sheets and blocks and the like, the manufacturing cost of the motor is lowered, and the assembling time is saved.

Description

technical field [0001] The invention relates to a wiper motor of a vehicle wiper device. The motor is used to drive a wiper mechanism, and then drive a wiper arm assembly to clean the windshield of an automobile. Background technique [0002] The external structure of the wiper motor is composed of a motor housing, a reducer housing, and a gland part. The armature drives the worm gear to rotate inside, and the worm gear shaft drives the external mechanism to reciprocate, and then drives the wiper arm assembly to wipe the glass. Clean the windshield. [0003] In terms of motor assembly, in the past wiper motors, after the brush holder ring is riveted or screwed to the reducer housing, the armature is inserted from the bottom hole of the reducer housing, and the three carbon brushes of the brush holder ring are stretched during insertion. The process requires complex auxiliary tooling, and the assembly is cumbersome. [0004] On the gland, the original plug piece is directly...

AI Technical Summary

Problems solved by technology

[0003] In terms of motor assembly, in the past wiper motors, after the brush holder ring is riveted or screwed to the reducer housing, the armature is inserted from the bottom hole of the reducer housing, and the three carbon brushes of the brush holder ring are stretched during insertion. The process requires complex auxiliary tooling and cumbersome assembly

[0004] On the gland, the original plug piece is directly injected on the metal gland, which is only used for the electrical connection between the motor brush holder ring and the plug, and the seal between the metal gland and the plastic part is poor

[0005] In terms of the sealing performance of the motor casing, the reducer casing and the motor casing are connected by screws, and there is a sealing ring inside for sealing. The motor casing at the connection is rounded, and the rounded corners are naturally formed by stamping. control, so the sealing effect is not stable

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