Automobile starter electric brush

Abstract

The utility model relates to the technical field of electric brushes, in particular to an automobile starter electric brush, which comprises a bottom plate, a brush carrier, an electric brush main body and a wire braid, the brush carrier is arranged on the surface of the bottom plate, the electric brush main body is inserted in the brush carrier, and the end part of the electric brush main body is connected with the wire braid; the automobile starter electric brush has the beneficial effects that when the automobile starter electric brush and the butt joint block move, the elastic column and the clamping block can be driven to move, when one end of the butt joint block is inserted into the electric brush body through the mounting groove, the clamping block can generate extrusion deformation, and at the moment, the baffle can be pushed to penetrate through the brush frame and is located on the outer side surface of the connecting plate; the pressing plate can be fixed to the top of the brush carrier through the screws, at the moment, the baffle can extrude the elastic columns and the springs so as to extrude and limit the electric brush body, the placing stability of the electric brush body can be improved through the elastic columns and the springs, and when the starter vibrates, the electric brush body is not prone to loosening; and tight contact between the brush main body and the armature is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of electric brushes, in particular to an electric brush for an automobile starter. Background Art

[0002] The automobile starter brush is an important component in the automobile starter. It plays the role of transmitting current. The brush is used in conjunction with the commutator to transmit the current from the external power supply to the inside of the starter, thereby driving the starter's rotor to rotate. The quality and performance of the brush directly affects the working efficiency and life of the starter.

[0003] In the prior art, the brush has good conductivity. The brush is usually installed inside the brush holder and fixed by a leaf spring. Since the brush is affected by the vibration of the starter, the leaf spring is easily loosened under long-term vibration and impact, making the contact between the brush and the rotor unstable, affecting the normal use of the starter. Utility Model Content

[0004] The utility model aims to provide a car starter brush to solve the problem that the brush is easy to loosen in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an automobile starter brush, the automobile starter brush comprising: a base plate, a brush holder, a brush body and a wire braid, the brush holder is installed on the surface of the base plate, the brush body is plugged into the inside of the brush holder, the end of the brush body is connected to the wire braid, an installation groove is opened inside the brush body, a docking block is plugged into the inside of the installation groove, a card block is bonded to the outside of the docking block, an elastic column is connected to the inside of the docking block, the end of the elastic column is connected to a connecting plate, and a spring is connected between the connecting plate and the docking block.

[0006] Preferably, a baffle is provided on the outer side of the connecting plate, a pressing plate is connected to the top of the baffle, and the pressing plate is fixed to the surface of the brush holder by screws.

[0007] Preferably, the clamping block is made of rubber material, and a clamping structure is formed between the clamping block and the brush body. Preferably, a rubber block is bonded to the outer side of the brush holder near the wire braid, and a limiting groove is provided inside the rubber block.

[0008] Preferably, a protective block is installed on the inner side of the brush holder close to the wire braid, and a connecting block is connected to the back of the protective block.

[0009] Preferably, the top and the bottom of the connecting block are both connected with fixing rods, and a clamping structure is formed between the fixing rods and the rubber block via a limiting groove.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] The automobile starter brush proposed by the utility model can drive the elastic column and the clamping block to move when the docking block moves. When one end of the docking block is plugged into the inside of the brush body through the installation groove, the clamping block will be extruded and deformed. When the connecting plate is extruded, the elastic column and the spring can be compressed. At this time, the baffle can be pushed to pass through the brush holder so that the baffle is located on the outer surface of the connecting plate. The pressing plate can be fixed to the top of the brush holder by screws. At this time, the baffle will squeeze the elastic column and the spring, thereby squeezing and limiting the brush body. The elastic column and the spring can improve the stability of the placement of the brush body, so that when the starter vibrates, the brush body is not easy to loosen, thereby ensuring close contact between the brush body and the armature. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0013] Figure 2 It is a schematic diagram of the cutaway structure of the brush holder of the utility model from the left side;

[0014] Figure 3 It is a left-side structural schematic diagram of the brush holder of the utility model;

[0015] Figure 4 This is a schematic diagram of the top view of the rubber block of the utility model;

[0016] Figure 5 It is a three-dimensional structural schematic diagram of the protective block of the utility model.

[0017] In the figure: 1. bottom plate; 2. brush holder; 3. brush body; 4. wire braid; 5. mounting slot; 6. docking block;

[0018] 7. Block; 8. Elastic column; 9. Connecting plate; 10. Spring; 11. Baffle; 12. Pressure plate; 13. Rubber block; 14. Limiting groove; 15. Protective block; 16. Connecting block; 17. Fixing rod. DETAILED DESCRIPTION

[0019] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of the utility model. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Embodiment 1

[0021] See also Figure 1-Figure 5 The utility model provides a technical solution: a car starter brush, the car starter brush comprises: a bottom plate 1, a brush holder 2, a brush body 3 and a wire braid 4, the brush holder 2 is installed on the surface of the bottom plate 1, the brush holder 2 is plugged into the inside of the brush holder 2, the end of the brush body 3 is connected to the wire braid 4, the brush body 3 is provided with a mounting groove 5, the mounting groove 5 is plugged into the inside of the docking block 6, the outside of the docking block 6 is bonded with a clamping block 7, the inside of the docking block 6 is connected with an elastic column 8, the end of the elastic column 8 is connected to a connecting plate 9, a spring 10 is connected between the connecting plate 9 and the docking block 6, a baffle 11 is arranged on the outside of the connecting plate 9, a pressure plate 12 is connected to the top of the baffle 11, and the pressure plate 12 is fixed to the surface of the brush holder 2 by screws, the clamping block 7 is made of rubber material, and a clamping structure is formed between the clamping block 7 and the brush body 3.

[0022] Embodiment 2

[0023] On the basis of the first embodiment, the traditional leaf spring is easy to relax, making the brush body 3 easy to loosen. For this reason, the docking block 6 can be pushed. When the docking block 6 moves, the elastic column 8 and the clamping block 7 can be driven to move. When one end of the docking block 6 is inserted into the brush body 3 through the mounting groove 5, the clamping block 7 will be extruded and deformed. When the docking block 6 is completely docked with the brush body 3, the clamping block 7 can be reset in shape, so that the docking block 6 is installed on the brush body 3. At this time, the connecting plate 9 can be pressed in the direction of the docking block 6. When the connecting plate 9 is squeezed, the elastic column 8 and the spring 10 can be pressed. Compression, at this time, the baffle 11 can be pushed to penetrate the brush holder 2, so that the baffle 11 is located on the outer surface of the connecting plate 9, and the elastic column 8 and the spring 10 are in a compressed state. At the same time, the pressure plate 12 can be moved to the top surface of the brush holder 2, and the pressure plate 12 can be fixed to the top of the brush holder 2 by screws. At this time, the baffle 11 will squeeze the elastic column 8 and the spring 10, thereby squeezing and limiting the brush body 3. The elastic column 8 and the spring 10 can improve the stability of the placement of the brush body 3, so that when the starter vibrates, the brush body 3 is not easy to loosen, ensuring the close contact between the brush body 3 and the armature.

[0024] A rubber block 13 is bonded to the outer side of the brush holder 2 near the wire braid 4, and a limiting groove 14 is provided inside the rubber block 13. A protective block 15 is installed on the inner side of the brush holder 2 near the wire braid 4. A connecting block 16 is connected to the back of the protective block 15. The top and bottom of the connecting block 16 are both connected to a fixing rod 17. The fixing rod 17 and the rubber block 13 form a snap-fit ​​structure through the limiting groove 14, and the inner wall of the protective block 15 is arc-shaped.

[0025] Embodiment 3

[0026] On the basis of the second embodiment, the wire braid 4 is prone to wear and tear with the brush holder 2. For this purpose, the protective block 15 can be pushed. When the protective block 15 moves, it can drive the connecting block 16 and the fixing rod 17 to move. When the back of the protective block 15 moves to the inner groove of the brush holder 2, the connecting block 16 can move between the two groups of rubber blocks 13. At this time, the fixing rod 17 can be engaged with the inside of the rubber block 13 through the limiting groove 14, so that the protective block 15 is installed on the brush holder 2. The protective block 15 can prevent the wire braid 4 from directly contacting the inner wall of the brush holder 2 during the bending process, so that the wire braid 4 is not easily worn during use.

[0027] During actual use, when the docking block 6 moves, it can drive the elastic column 8 and the clamping block 7 to move. When one end of the docking block 6 is inserted into the brush body 3 through the installation groove 5, the clamping block 7 will produce extrusion deformation. When the docking block 6 is completely docked with the brush body 3, the clamping block 7 can reset its shape, thereby installing the docking block 6 on the brush body 3. When the back of the protective block 15 moves to the internal groove of the brush holder 2, the connecting block 16 can move between the two groups of rubber blocks 13. At this time, the fixing rod 17 can be engaged with the inside of the rubber block 13 through the limiting groove 14, thereby installing the protective block 15 on the brush holder 2. The protective block 15 can prevent the wire braid 4 from directly contacting the inner wall of the brush holder 2 during the bending process, so that the wire braid 4 is not easily worn during use.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automobile starter brush, characterized in that: The automobile starter brush comprises: a base plate (1), a brush holder (2), a brush body (3) and a wire braid (4); the brush holder (2) is mounted on the surface of the base plate (1); the brush body (3) is plugged into the inside of the brush holder (2); the end of the brush body (3) is connected to the wire braid (4); a mounting groove (5) is provided inside the brush body (3); a docking block (6) is plugged into the inside of the mounting groove (5); a clamping block (7) is bonded to the outside of the docking block (6); an elastic column (8) is connected to the inside of the docking block (6); the end of the elastic column (8) is connected to a connecting plate (9); a spring (10) is connected between the connecting plate (9) and the docking block (6).

2. The automobile starter brush according to claim 1, characterized in that: A baffle (11) is arranged on the outer side of the connecting plate (9), a pressing plate (12) is connected to the top of the baffle (11), and the pressing plate (12) is fixed to the surface of the brush holder (2) by means of screws.

3. The automobile starter brush according to claim 1, characterized in that: The clamping block (7) is made of rubber material, and a clamping structure is formed between the clamping block (7) and the brush body (3).

4. The automobile starter brush according to claim 1, characterized in that: A rubber block (13) is bonded to the outer side of the brush holder (2) close to the wire braid (4), and a limiting groove (14) is provided through the interior of the rubber block (13).

5. The automobile starter brush according to claim 1, characterized in that: A protective block (15) is installed on the inner side of the brush holder (2) close to the wire braid (4), and a connecting block (16) is connected to the back of the protective block (15).

6. The automobile starter brush according to claim 5, characterized in that: The top and bottom of the connection block (16) are both connected to a fixing rod (17), and a clamping structure is formed between the fixing rod (17) and the rubber block (13) via a limiting groove (14).

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