Carbon brush holder convenient to detect

Abstract

The utility model discloses a carbon brush holder convenient to detect, which comprises an annular plate provided with four carbon brush box mounting positions distributed at equal intervals in the circumferential direction, and is characterized in that a positive electrode connecting sheet and a negative electrode connecting sheet are embedded in the annular plate and are arranged in a matched manner to form a whole circle structure; the wiring ends of the positive electrode connecting sheet and the negative electrode connecting sheet are oppositely arranged, the annular plate is provided with an opening corresponding to the wiring end, and the inner ring of the lower surface of the annular plate is provided with a row of small detection holes I matched with the length of the corresponding negative electrode connecting sheet; the outer ring of the lower surface of the annular plate is provided with a row of second detection holes matched with the length of the corresponding positive electrode connecting piece. According to the utility model, the installation condition of the positive connecting sheet and the negative connecting sheet can be conveniently detected, thereby rapidly rejecting waste products.

Description

Technical Field

[0001] The utility model relates to an improved invention of a carbon brush holder, in particular to an improved invention of a carbon brush holder which is convenient for detection. Background Art

[0002] In the prior art, the carbon brush holder is formed by automated injection molding, and the positive electrode connecting piece and the negative electrode connecting piece are embedded in the injection molding process. However, when the positive electrode connecting piece and the negative electrode connecting piece are arranged, there is a certain probability that the front and back sides will be inverted. The carbon brush holder can also be injection molded after being inverted. The formed carbon brush holder enters the next step of automated assembly of a carbon brush box, an inductor, and a series of other steps. Therefore, the inverted positive electrode connecting piece and the negative electrode connecting piece are not easy to observe and detect, which increases the scrap rate. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a carbon brush holder which is easy to detect.

[0004] In order to solve the above technical problems, the utility model is implemented by adopting the following technical scheme: the carbon brush holder which is easy to detect comprises an annular plate, and the annular plate is provided with four carbon brush box mounting positions which are circumferentially evenly spaced, and is characterized in that: the annular plate is embedded with a positive electrode connecting piece and a negative electrode connecting piece, and the positive electrode connecting piece and the negative electrode connecting piece are arranged in a full circle structure, and are partially staggered inside and outside, and the wiring terminals of the positive electrode connecting piece and the negative electrode connecting piece are arranged facing each other, and an opening corresponding to the wiring terminal is provided on the annular plate, and a row of detection holes one matching the length of the corresponding negative electrode connecting piece is provided on the inner ring of the lower surface of the annular plate, and a row of detection holes two matching the length of the corresponding positive electrode connecting piece is provided on the outer ring of the lower surface of the annular plate.

[0005] Four arc-shaped guard plates are arranged on the outer edge of the annular plate, and the arc-shaped guard plates are arranged corresponding to the installation positions of the carbon brush boxes respectively.

[0006] The annular plate and the arc-shaped guard plate are integrally injection-molded.

[0007] The beneficial effect of the utility model is that the improved carbon brush holder is easy to detect. By arranging a row of detection holes 1 and 2 on the lower surface of the annular plate, the installation conditions of the positive electrode connecting piece and the negative electrode connecting piece can be clearly observed, thereby facilitating detection and eliminating waste products. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings.

[0009] Figure 1 It is a structural schematic diagram of the utility model.

[0010] Figure 2 It is a bottom view of the structure of the utility model.

[0011] Figure 3 This is the layout diagram of the positive and negative electrode connecting pieces of the utility model.

[0012] Figure 4 This is a reverse view of the positive and negative electrode connecting pieces of the utility model. DETAILED DESCRIPTION

[0013] The accompanying drawings show the structure of the utility model, and the following further describes its relevant details in conjunction with the accompanying drawings. Figure 1-4 The carbon brush holder for easy detection includes an annular plate 1, on which four carbon brush box mounting positions 2 are circumferentially evenly spaced, a positive electrode connecting piece 3 and a negative electrode connecting piece 4 are embedded in the annular plate 1, the positive electrode connecting piece 3 and the negative electrode connecting piece 4 are arranged in a full circle structure, and are partially staggered inside and outside, the connection terminals 5 of the positive electrode connecting piece 3 and the negative electrode connecting piece 4 are arranged facing each other, an opening 6 corresponding to the connection terminal 5 is provided on the annular plate 1, a row of detection holes 7 matching the length of the corresponding negative electrode connecting piece 4 is provided on the inner circle of the lower surface of the annular plate 1, and a row of detection holes 8 matching the length of the corresponding positive electrode connecting piece 3 is provided on the outer circle of the lower surface of the annular plate 1.

[0014] According to the detection principle of the present invention, when the positive connecting piece 3 and the negative connecting piece 4 are accurately installed, each detection hole 1 7 can observe the negative connecting piece 4, and each detection hole 2 8 can observe the positive connecting piece 3. However, when the positive connecting piece 3 and the negative connecting piece 4 are inverted, some detection holes 1 7 cannot observe the negative connecting piece 4, and some detection holes 2 8 cannot observe the positive connecting piece 3.

[0015] As a further improved specific implementation method, four arc-shaped guard plates 9 are provided on the outer edge of the annular plate 1, and the arc-shaped guard plates 9 are arranged corresponding to the carbon brush box installation positions 2 respectively. The arc-shaped guard plates 9 have a certain height and can form a barrier and support for the rear end of the carbon brush box. The corresponding rear end of the carbon brush box is no longer provided with a spring limiting structure, and is limited by the arc-shaped guard plates.

[0016] As a further improved specific implementation, the annular plate 1 and the arc-shaped guard plate 9 are integrally injection-molded to enhance structural stability.

[0017] In summary, the above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A carbon brush holder for easy detection, comprising an annular plate, on which are arranged four carbon brush box mounting positions which are equally spaced in the circumferential direction, characterized in that: The annular plate is embedded with a positive electrode connecting piece and a negative electrode connecting piece. The positive electrode connecting piece and the negative electrode connecting piece are arranged in a full circle structure, and are partially staggered inside and outside. The wiring terminals of the positive electrode connecting piece and the negative electrode connecting piece are arranged facing each other, and openings corresponding to the wiring terminals are provided on the annular plate. A row of detection holes one matching the length of the corresponding negative electrode connecting piece is provided on the inner circle of the lower surface of the annular plate, and a row of detection holes two matching the length of the corresponding positive electrode connecting piece is provided on the outer circle of the lower surface of the annular plate.

2. The carbon brush holder for easy detection as claimed in claim 1, characterized in that: Four arc-shaped guard plates are arranged on the outer edge of the annular plate, and the arc-shaped guard plates are arranged corresponding to the installation positions of the carbon brush boxes respectively.

3. The carbon brush holder for easy detection as claimed in claim 1 or 2, characterized in that: The annular plate and the arc-shaped guard plate are integrally injection-molded.

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