Connecting sheet of carbon brush assembly

Abstract

The utility model discloses a connecting piece of a carbon brush assembly, which comprises an anode connecting piece and a cathode connecting piece which are respectively provided with a power supply wiring end, an inductor wiring end and a carbon brush wiring end, and is characterized in that the inductor wiring end is connected with an inductor wiring end by rivet welding; the inner side edges of the corresponding positive and negative electrode connecting sheets are provided with connecting parts which are integrally formed with the positive and negative electrode connecting sheets, the connecting parts are folded outwards to be located above the connecting sheets, and the inductance connecting wires extend into the positions between the connecting parts and the upper surfaces of the connecting sheets from the outer sides of the connecting sheets and are connected with the connecting sheets in a rivet welding manner. According to the utility model, the welding area of the connecting sheet and the inductance wiring is increased, and the welding effect is enhanced.

Description

Technical Field

[0001] This utility model relates to an improved invention of a carbon brush assembly, and more particularly to an improved invention of a connecting piece for a carbon brush assembly. Background Technology

[0002] The carbon brush assembly includes a carbon brush cover, a carbon brush holder, an inductor, carbon brushes, and a power cord assembly. The carbon brush holder includes a connecting piece and its outer injection-molded layer. The connecting piece is divided into a positive connecting piece and a negative connecting piece, which are spot-welded to the inductor, carbon brushes, and power cord respectively. Because the inductor wiring is relatively thick and stiff, spot welding is prone to poor soldering or detachment when the motor vibrates at high frequencies. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a connecting piece for a carbon brush assembly.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: the connecting piece of the carbon brush assembly includes positive and negative connecting pieces, and the positive and negative connecting pieces are respectively provided with power supply terminals, inductor terminals and carbon brush terminals. The characteristic is that the inductor terminals are connected to the inductor wires by riveting and welding. The inner edges of the corresponding positive and negative connecting pieces are provided with integrally formed connecting parts. The connecting parts are folded outward and located above the connecting pieces. The inductor wires extend from the outside of the connecting pieces into the connecting parts and the upper surface of the connecting pieces, and are riveted and welded to them.

[0005] The connection portion has an arc-shaped bend in the width direction that adapts to the profile of the inductor wiring.

[0006] A notch is provided on one side of the root of the connector.

[0007] The connecting piece and the connecting part are made of copper.

[0008] The power supply terminal is spot-welded to the power supply terminal, and the carbon brush terminal is spot-welded to the carbon brush terminal.

[0009] The beneficial effects of this utility model are that the connecting piece of the improved carbon brush assembly is connected to the inductor terminal by riveting, which increases the welding area between the connecting piece and the inductor terminal, and the connecting part can effectively wrap the inductor terminal, exerting a certain compressive force on the inductor terminal, thus enhancing the welding effect in both directions. Attached Figure Description

[0010] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0011] Figure 1 This is a schematic diagram of the structure of this utility model.

[0012] Figure 2 This is an outer view of the positive electrode connecting piece of this utility model.

[0013] Figure 3 This is a structural diagram of the carbon brush holder of this utility model. Detailed Implementation

[0014] The accompanying drawings illustrate the structure of this utility model, and further details will be described below with reference to the drawings. In this embodiment, see the attached drawings. Figure 1-3 The carbon brush assembly includes positive and negative connecting pieces 1 and 2. The positive and negative connecting pieces 1 and 2 are respectively provided with a power terminal 3, an inductor terminal 4, and a carbon brush terminal 5. The inductor terminal 4 is connected to the inductor wire by riveting. The inner edge of the corresponding positive and negative connecting pieces 1 and 2 is provided with an integrally formed connecting part 6. The connecting part 6 is folded outward and located above the connecting piece. The inductor wire extends from the outside of the connecting piece into the space between the connecting part 6 and the upper surface of the connecting piece, and is riveted to it. The riveting is performed by melting the inductor wire and the connecting part 6 together on the connecting piece through high temperature. The setting of the connecting part 6 increases the welding area between the inductor wire and the connecting piece, enhances the welding effect, and avoids the occurrence of poor soldering or desoldering.

[0015] As a further improved embodiment, the connecting part 6 has an arc-shaped bend in the width direction that adapts to the contour of the inductor wire, effectively wrapping the inductor wire, generating a certain squeezing force on the inductor wire, and enhancing the welding effect in both directions.

[0016] As a further improved embodiment, a notch 7 is provided on one side of the root of the connecting part 6 to facilitate the forming of the connecting part 6 in an arc-shaped bend.

[0017] As a further improved embodiment, the connecting piece and the connecting part 6 are made of copper, which has good electrical conductivity and is easy to connect by riveting and spot welding.

[0018] As a further improved implementation, the power supply terminal 3 is spot-welded to the power supply terminal, and the carbon brush terminal 5 is spot-welded to the carbon brush terminal.

[0019] In summary, the above are merely preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A connecting piece for a carbon brush assembly, comprising positive and negative connecting pieces, wherein the positive and negative connecting pieces are respectively provided with a power supply terminal, an inductor terminal, and a carbon brush terminal, characterized in that: The inductor terminals are connected to the inductor wires by riveting. The inner edges of the corresponding positive and negative connecting pieces are provided with integrally formed connecting parts. The connecting parts are folded outward and located above the connecting pieces. The inductor wires extend from the outside of the connecting pieces into the connecting parts and the upper surface of the connecting pieces, and are riveted to them.

2. The connecting piece of the carbon brush assembly as described in claim 1, characterized in that: The connection portion has an arc-shaped bend in the width direction that adapts to the profile of the inductor wiring.

3. The connecting piece of the carbon brush assembly as described in claim 2, characterized in that: A notch is provided on one side of the root of the connector.

4. The connecting piece of the carbon brush assembly as described in claim 1, characterized in that: The connecting piece and the connecting part are made of copper.

5. The connecting piece of the carbon brush assembly as described in claim 1, characterized in that: The power supply terminal is spot-welded to the power supply terminal, and the carbon brush terminal is spot-welded to the carbon brush terminal.

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