Grounding structure of wiper motor brush carrier ring

Abstract

The utility model discloses a grounding structure of a wiper motor brush carrier ring, which comprises a speed reducer shell, a brush carrier ring component and a grounding piece, the grounding piece is downwards assembled on the brush carrier ring component, and a third bending structure of the grounding piece is opened through the side surface of the brush carrier ring component and is downwards mounted to be in contact with a matching surface of the brush carrier ring component. The inverted buckling structure of the grounding piece is propped open through the side face of the brush carrier ring component and then makes contact with the step face of the brush carrier ring component. The second bending structure of the grounding piece is in contact with a capacitor on the brush carrier ring component; the brush carrier ring part is installed in the speed reducer shell, the front end face of the brush carrier ring part makes contact with the installation side face of the speed reducer shell, the brush carrier ring part is guided to be installed, the arc structure at the front end of the grounding piece makes contact with the grounding face of the speed reducer shell, and the first bent structure of the grounding piece deforms and makes interference contact with the grounding face of the speed reducer shell. According to the utility model, through the structural design of the grounding sheet and the brush carrier ring, the assembly is simple and reliable, and the grounding sheet is prevented from overturning in the assembly process.

Description

TECHNICAL FIELD

[0001] The utility model belongs to motor technical field, and concretely relates to a ground structure of wiper motor brush holder ring. BACKGROUND

[0002] The existing wiper motor brush holder ring component assembly, the grounding sheet and the brush holder ring component are separate structures, the grounding sheet is buckled on the brush holder ring first, and the grounding sheet can be separated in the transportation process, the two parts are assembled in the reducer shell with interference, the grounding sheet can be turned over in the assembly process, which leads to assembly difficulty and poor grounding.

[0003] In order to improve the above problems, a new brush holder ring grounding structure is designed, which can effectively improve the above problems. SUMMARY

[0004] The utility model discloses a kind of ground structure of wiper motor brush holder ring, and the utility model is designed through grounding sheet and brush holder ring structure, can be realized simple and reliable assembly, avoid grounding sheet to appear turning over in the assembly process.

[0005] The technical scheme of the utility model is:

[0006] A kind of ground structure of wiper motor brush holder ring, including reducer shell C, brush holder ring component B and grounding sheet A, grounding sheet A is assembled to brush holder ring component B downwards, grounding sheet A section is inverted U type body, there are two first bending structures A4 connected respectively through two circular arc structures A5 on inverted U type body upper end rear side, the middle of inverted U type body upper end has two second bending structures A3, the bottom end of inverted U type body has inverted buckle structure A2 respectively on both sides, the lower end of inverted buckle structure A2 also has third bending structure A1;Third bending structure A1 of grounding sheet A is supported apart by brush holder ring component side surface B1, and the mating surface B3 of brush holder ring component B is contacted downwards, inverted buckle structure A2 of grounding sheet A is contacted with the step surface B2 of brush holder ring component B after being supported apart by brush holder ring component side surface B1;Second bending structure A3 of grounding sheet A is contacted with capacitor B4 on brush holder ring component B;Brush holder ring component B is assembled into reducer shell C, and the front end surface B5 of brush holder ring component B is contacted with the installation side surface C1 of reducer shell C, to guide brush holder ring component B to be assembled, and the circular arc structure A5 of the front end of grounding sheet A is contacted with the grounding surface C2 of reducer shell C in the process of being assembled, while the first bending structure A4 of grounding sheet A is deformed and contacted with the grounding surface C2 of reducer shell C with interference.

[0007] The utility model is designed through grounding sheet and brush holder ring structure, can be realized simple and reliable assembly, avoid grounding sheet to appear turning over in the assembly process. SHEET DESCRIPTION

[0008] Figure 1 It is the grounding sheet assembly schematic diagram,

[0009] Figure 2 is a schematic view of the grounding sheet (including a cross-sectional view),

[0010] Figure 3 is a schematic view of the brush holder ring component structure (including a cross-sectional view),

[0011] Figure 4 is a schematic view of the grounding structure of the reducer housing.

[0012] In the figure: A, grounding sheet, B, brush holder ring component, C, reducer housing;

[0013] A1, third bending structure, A2, reverse buckle structure, A3, second bending structure, A4, first bending structure, A5, circular arc structure;

[0014] B1, side surface, B2, step surface, B3, mating surface, B4, capacitor, B5, front end surface;

[0015] C1, mounting side surface, C2, grounding surface. DETAILED DESCRIPTION

[0016] The present scheme will be further described below in conjunction with the accompanying drawings. In the drawings, the same or similar parts are denoted by the same reference numerals.

[0017] As shown in the drawings, Figures 1-4 A rain wiper motor brush holder ring grounding structure, comprising a reducer housing C, a brush holder ring component B and a grounding sheet A, the grounding sheet A is assembled downward to the brush holder ring component B, the cross section of the grounding sheet A is in the shape of an inverted U-shaped body, the upper end of the inverted U-shaped body has two first bending structures A4 connected by two circular arc structures A5 respectively, the middle of the upper end of the inverted U-shaped body has two second bending structures A3, the two sides of the bottom end of the inverted U-shaped body have inwardly directed reverse buckle structures A2 respectively, and the lower end of the reverse buckle structure A2 has a third bending structure A1; wherein the bending structure A1 of the grounding sheet A is spread apart by the side surface B1 of the brush holder ring component, and contacts the mating surface B3 of the brush holder ring component B during the downward installation process, at this time the reverse buckle structure A2 of the grounding sheet A is in contact with the step surface B2 of the brush holder ring component after being spread apart by the side surface B1 of the brush holder ring component, thereby achieving the effect of preventing falling out, the bending structure A3 of the grounding sheet A is in contact with the capacitor B4 on the brush holder ring component B, thereby achieving the effect of connecting the circuit. The brush holder ring component B is installed into the reducer housing C, at this time the front end surface B5 of the brush holder ring component B is in contact with the side surface C1 of the reducer housing C, thereby guiding the installation of the brush holder ring component B, during the installation process the circular arc structure A5 at the front end of the grounding sheet A is in contact with the grounding surface C2 of the reducer housing C, at the same time the bending structure A4 of the grounding sheet A is deformed and in interference contact with the grounding surface C2 of the reducer housing C, thereby ensuring the grounding effect.

[0018] The above merely describes specific embodiments of the utility model, but the protection scope of the utility model is not limited to the wiper motor, and other direct current brush motors are also protected.

[0019] Any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the utility model, and the changes or replacements should be covered in the protection scope of the utility model, so the protection scope of the utility model should be subject to the protection scope of the claims.

Claims

1. A grounding structure for a wiper motor brush holder ring, characterized in that: The device includes a reducer housing (C), a brush holder ring assembly (B), and a grounding plate (A). The grounding plate (A) is mounted downwards onto the brush holder ring assembly (B). The grounding plate (A) has an inverted U-shaped cross-section. At the rear of the upper end of the inverted U-shape, there are two first bending structures (A4) connected by two arc structures (A5). At the middle of the upper end of the inverted U-shape, there are two second bending structures (A3). At the bottom of the inverted U-shape, on both sides, there are inwardly buckling structures (A2). The lower part of the buckling structure (A2)... The end also has a third bending structure (A1); the third bending structure (A1) of the grounding piece (A) is opened by the side (B1) of the brush holder ring component and installed downward to contact the mating surface (B3) of the brush holder ring component (B); the inverted structure (A2) of the grounding piece (A) is opened by the side (B1) of the brush holder ring component and contacts the stepped surface (B2) of the brush holder ring component (B); the second bending structure (A3) of the grounding piece (A) contacts the capacitor (B4) on the brush holder ring component (B).

2. The grounding structure of the wiper motor brush holder ring as described in claim 1, characterized in that: The brush holder ring component (B) is installed into the reducer housing (C). The front end face (B5) of the brush holder ring component (B) contacts the mounting side (C1) of the reducer housing (C), guiding the brush holder ring component (B) into place. The arc structure (A5) at the front end of the grounding plate (A) contacts the grounding surface (C2) of the reducer housing (C). The first bending structure (A4) of the grounding plate (A) deforms and makes interference contact with the grounding surface (C2) of the reducer housing (C).

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