Direct current motor carbon brush convenient to replace

By designing a carbon brush structure of DC motor with card slot and copper card block connection, the problem of difficulty in replacing carbon brushes in the prior art is solved, and the effect of rapid tool-free replacement is achieved.

CN222531020UActive Publication Date: 2025-02-25NANJING IRON & STEEL CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202420281855.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-02-06
Publication Date
2025-02-25
Estimated Expiration
2034-02-06

AI Technical Summary

Technical Problem

When replacing existing DC motor carbon brushes, you need to use tools to remove the wires, which makes it difficult and labor-intensive to operate in a narrow space.

Method used

A structure including a DC motor carbon brush body and a conductor is designed. A card slot is provided on the top of the carbon brush body and a copper card block at the bottom of the wire. It is connected by inserting the copper card block into the card slot to realize tool-free replacement.

Benefits of technology

It realizes the rapid replacement of carbon brushes of DC motors. There is no need to use tools or disassemble wires. It only needs to slide out the copper block embedded in the brush body and replace the brush body separately, which significantly improves the speed and convenience of replacement.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure 00000000_0000_ABST
    Figure 00000000_0000_ABST
Patent Text Reader

Abstract

The utility model discloses a direct current motor carbon brush convenient to replace, which comprises a direct current motor carbon brush body and a lead, a clamping groove is arranged at the top of the direct current motor carbon brush body, a copper clamping block is arranged at the bottom of the lead, and the direct current motor carbon brush body and the lead are connected by inserting the copper clamping block into the clamping groove. According to the direct current motor carbon brush capable of being quickly replaced and the motor adopting the carbon brush, when the carbon brush is replaced, a tool does not need to be used, a carbon brush wire does not need to be disassembled, only the copper block embedded in the brush body needs to slide out, and the brush body is independently replaced, so that the carbon brush is quick and convenient.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model relates to the field of carbon brushes for direct current motors, in particular to a carbon brush for direct current motors which is easy to replace. Background Art

[0002] Motor carbon brushes are consumable parts. When replacing them, the screw that fixes the carbon brush wire needs to be disassembled and assembled. In some special locations such as the bottom of the motor, the space is small and the movement is restricted, so disassembling and assembling the carbon brushes is time-consuming and laborious.

[0003] Therefore, it is necessary to develop DC motor carbon brushes that are easy to replace. Utility Model Content

[0004] Purpose of the utility model: In view of the shortcomings and defects of the prior art, the utility model provides a DC motor carbon brush that is easy to replace and can quickly replace the DC motor carbon brush. When using the motor with the carbon brush, no tools are required to replace the carbon brush, and the carbon brush wire does not need to be removed. Only the copper block embedded in the brush body needs to be slid out and the brush body can be replaced alone, which is quick and convenient.

[0005] Technical solution: The utility model is a DC motor carbon brush that is easy to replace, characterized in that it includes a DC motor carbon brush body and a wire, a card slot is provided on the top of the DC motor carbon brush body, a copper card block is provided at the bottom of the wire, and the DC motor carbon brush body and the wire are connected by inserting the copper card block into the card slot.

[0006] Wherein, the copper card block is a convex-shaped card block.

[0007] Wherein, the card slot is a convex groove.

[0008] Wherein, the bottom of the wire is fixedly connected to the copper clamp block.

[0009] Wherein, the bottom of the wire is fixedly connected to the copper clamp block by screws.

[0010] Wherein, the bottom of the wire and the copper card block are an integrated structure.

[0011] Beneficial effects: Compared with the prior art, the utility model has the following significant advantages: The utility model provides a DC motor carbon brush that is easy to replace, and the DC motor carbon brush can be quickly replaced. For a motor using the carbon brush, no tools are required when replacing the carbon brush, and no carbon brush wire needs to be removed. Only the copper block embedded in the brush body needs to be slid out, and the brush body can be replaced alone, which is quick and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 It is a schematic diagram of the side structure of the utility model;

[0014] In the figure, 1 is the wire; 2 is the copper card block; 3 is the card slot; and 4 is the carbon brush body of the DC motor. DETAILED DESCRIPTION

[0015] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0016] The utility model discloses a DC motor carbon brush that is easy to replace, comprising a DC motor carbon brush body 4 and a conductor 1. A card slot 3 is provided on the top of the DC motor carbon brush body 4, and a copper card block 2 is provided on the bottom of the conductor 1. The DC motor carbon brush body 4 and the conductor 1 are connected by inserting the copper card block 2 into the card slot 3. The copper card block 2 is a convex card block. The card slot 3 is a convex groove. The bottom of the conductor 1 is fixedly connected to the copper card block 2. The bottom of the conductor 1 is fixedly connected to the copper card block 2 by screws. The bottom of the conductor 1 and the copper card block 2 are an integrated structure.

[0017] There is a convex groove 3 on the top of the DC motor carbon brush body 4, and a convex copper block 2 is connected to the bottom of the wire 1. The copper block 2 can be seamlessly embedded in the groove 3 and tightly connected. The usage is the same as that of ordinary carbon brushes. When replacing the carbon brush, you only need to slide the copper block 2 and replace the DC motor carbon brush body 4 alone.

[0018] The size of the convex groove 3 on the top of the DC motor carbon brush body 4 is consistent with the size of the copper block 2 at the bottom of the wire 1. The copper block 2 can be fitted into the groove 3. The specific size is determined by the size of the DC motor carbon brush body 4. The distance between the connection points of the wire 1 and the copper block 2 must be greater than the width of the retaining spring. The connection between the wire 1 and the copper block 2 can be fixed by screws or cast in one piece.

Claims

1. A DC motor carbon brush that is easy to replace, characterized in that: The invention comprises a DC motor carbon brush body (4) and a conductor (1); a card slot (3) is provided on the top of the DC motor carbon brush body (4); a copper card block (2) is provided on the bottom of the conductor (1); the DC motor carbon brush body (4) and the conductor (1) are connected by inserting the copper card block (2) into the card slot (3).

2. The DC motor carbon brush that is easy to replace according to claim 1 is characterized in that: The copper card block (2) is a convex card block.

3. The DC motor carbon brush that is easy to replace according to claim 2 is characterized in that: The clamping groove (3) is a convex groove.

4. The DC motor carbon brush that is easy to replace according to claim 1 is characterized in that: The bottom of the wire (1) is fixedly connected to the copper clamp block (2).

5. The DC motor carbon brush that is easy to replace according to claim 4 is characterized in that: The bottom of the wire (1) is fixedly connected to the copper clamp block (2) by means of screws.

6. The DC motor carbon brush that is easy to replace according to claim 4 is characterized in that: The bottom of the wire (1) and the copper clamp block (2) are an integrated structure.