Novel grounding carbon brush structure of new energy automobile

Abstract

The utility model relates to the technical field of grounding carbon brushes, in particular to a novel grounding carbon brush structure of a new energy automobile. Comprising a brush holder body, a carbon brush body is embedded in one end of the brush holder body, a brush holder shell is arranged at the other end of the brush holder body, a conductive part is arranged at one end of the brush holder shell, a fixing nut is arranged at one end of the brush holder body in an attached mode, and a connecting spring is arranged in the brush holder body. The brush holder comprises a brush holder main body, a shell main body is arranged on one side of the brush holder main body, a mounting limiting hole is formed in the shell main body, a slip ring assembly is arranged on one side of the shell main body, one end of the slip ring assembly is connected with a rotor, a chip groove is formed in the carbon brush body, and a connecting wire is arranged in the brush holder main body. According to the embodiment of the invention, the installation depth can be adjusted when the brush carrier main body and the shell main body are assembled, and meanwhile, the effect of preventing falling is achieved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of grounding carbon brush, especially relates to a novel new energy automobile grounding carbon brush structure. BACKGROUND

[0002] Currents are easily induced on rotating or moving parts of machine equipment, and the currents can damage the rotating or moving parts of the machine equipment, in order to reduce the induced currents, a carbon brush assembly is usually used to ground to guide the currents into the earth. The existing carbon brush assembly is widely applied to, for example, new energy automobile drive motor shaft grounding, automobile gearbox shaft grounding, diesel generator or engine shaft / flywheel grounding, machine equipment rotating or moving part grounding, motor shaft grounding, etc., and is also widely applied to brush commutator motor brush box and automobile generator support.

[0003] Through retrieval, in the prior art, Chinese patent publication No. CN221126481U, authorized on June 11, 2024, discloses a grounding carbon brush assembly, which comprises a carbon brush box and a carbon brush. The carbon brush has a contact surface for contacting with machine equipment. A circumferential edge of the contact surface is provided with at least one notch. The notch extends from the contact surface to a direction away from the contact surface to form a chip removal groove. A working opening is formed in the carbon brush box. The carbon brush is arranged inside the carbon brush box. The contact surface can be exposed from the working opening. An elastic assembly is further arranged inside the carbon brush box. The elastic assembly can be stretched and contracted in a direction perpendicular to a plane where the working opening is located. One end of the elastic assembly is fixedly connected with one end of the carbon brush away from the contact surface. The other end of the elastic assembly can abut against the carbon brush box. An electrically conductive part is arranged on the carbon brush box. The carbon brush is connected with the electrically conductive part through a wire.

[0004] However, the device still has the following defects: although the above-mentioned embodiment can discharge non-conductive chips, break the oil film, and make the contact resistance between the carbon brush and the equipment more stable. However, the installation of the grounding carbon brush assembly and the machine shell is not convenient, and the disassembly or installation still has limitations. UTILITY MODEL CONTENTS

[0005] In view of the above problems, the utility model provides a novel new energy automobile grounding carbon brush structure, which comprises a brush holder main body. One end of the brush holder main body is embedded with a carbon brush body. The other end of the brush holder main body is provided with a brush holder shell. One end of the brush holder shell is provided with an electrically conductive part. One end of the brush holder main body is provided with a fixed nut. The inside of the brush holder main body is provided with a connecting spring.

[0006] One side of the brush holder main body is provided with a machine shell main body. The inside of the machine shell main body is provided with a mounting limiting hole. One side of the machine shell main body is provided with a slip ring assembly. One end of the slip ring assembly is connected with a rotor. The inside of the carbon brush body is provided with a chip removal groove. The chip removal groove is located at one end of the carbon brush body and away from one end of the brush whip. The inside of the brush holder main body is provided with a connecting wire.

[0007] Further, the carbon brush body and the brush holder body are both rectangular in cross section, one end of the carbon brush body is movably connected to one end of the brush holder body, and the central axis of the carbon brush body coincides with the central axis of the brush holder body.

[0008] Further, the brush holder shell is circular in cross section, and the central axis of the brush holder shell coincides with the central axis of the brush holder body.

[0009] Further, the surface of the conductive component is provided with a connecting copper head located at the center of the surface of the conductive component, one end of the connecting wire is connected to the carbon brush body, and the other end of the connecting wire is connected to the connecting copper head.

[0010] Further, the fixing nut is movably sleeved on the surface of the brush holder shell, one end of the brush holder body is provided with a first rubber ring, one end of the brush holder body is provided with a second rubber ring, the surface of the brush holder shell is provided with a mounting thread, and the first rubber ring and the second rubber ring are respectively located on the two sides of the fixing nut.

[0011] Further, the inside of the brush holder body is provided with a brush whip located at the center of the inside of the brush holder body, one end of the brush whip is connected to one end of the carbon brush body, and the other end of the brush whip is connected to the conductive component.

[0012] Further, the connecting spring is attached to the inner wall of the brush holder body, one end of the connecting spring extends into the inside of the brush holder shell, a limiting clamping groove is formed at the center of the surface of the machine shell body, the limiting clamping groove is movably connected to the fixing nut, and the mounting limiting hole is connected to the limiting clamping groove.

[0013] Further, the slip ring assembly is sleeved on the surface of the brush holder body, and the slip ring assembly is detachably connected to the mounting limiting hole, and the chip removal groove is located at the center of the inside of the carbon brush body.

[0014] The beneficial effects of the present application are as follows:

[0015] 1. One end of the brush holder body is movably connected to the fixing nut, the first rubber ring and the second rubber ring are respectively located on the two sides of the fixing nut, a limiting clamping groove is formed at the center of the surface of the machine shell body, and the limiting clamping groove is movably connected to the fixing nut, so that the depth of the brush holder body and the machine shell body during assembly can be adjusted, and the effect of preventing falling off is achieved.

[0016] 2. MG89 material with a high copper content is selected. On the basis of meeting the current requirements, the wear of the carbon brush body is controlled by the brush holder main body material of H62, which improves the conductivity and facilitates processing. The surface of the brush holder shell is provided with a mounting thread, and the mounting part is connected to the casing body through the mounting thread. It is easy to install and replace while fitting tightly. At the same time, the matching part of the brush holder body and the carbon brush body adopts a rectangular shell structure, and a step is formed at the connection with the brush holder shell, which plays a role in the use of the carbon brush body and the connecting spring. It has a limiting effect during installation, which improves the convenience of installation or disassembly while achieving the effect of improving the practicality of the equipment.

[0017] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be achieved and obtained by the structures indicated in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 Shows a structural schematic diagram according to an embodiment of the present utility model;

[0020] Figure 2 Shows a schematic cross-sectional view of a brush holder body according to an embodiment of the present utility model;

[0021] Figure 3 Shows a schematic structural diagram of a slip ring assembly according to an embodiment of the present utility model;

[0022] Figure 4 A schematic cross-sectional view of a carbon brush body according to an embodiment of the present utility model is shown.

[0023] In the figure: 1. Brush holder body; 2. Carbon brush body; 3. Brush holder shell; 4. Conductive component; 5. Connecting copper head; 6. Fixing nut; 7. First rubber ring; 8. Second rubber ring; 9. Mounting thread; 10. Brush whip; 11. Connecting spring; 12. Housing body; 13. Slip ring assembly; 14. Limiting slot; 15. Mounting limiting hole; 16. Rotor; 17. Chip removal groove; 18. Connecting wire. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme of the embodiments of the utility model will be clearly and completely explained in combination with the drawings in the embodiments of the utility model, obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0025] The utility model embodiments provide a novel new energy automobile grounding carbon brush structure, including brush holder main part 1, for example, as Figures 1-4 Indicated.

[0026] One end of the brush holder main part 1 is embedded with carbon brush body 2, the cross section of carbon brush body 2 and brush holder main part 1 are all rectangular structure, one end of carbon brush body 2 is movably attached with one end of brush holder main part 1, and the central axis of carbon brush body 2 coincides with the central axis of brush holder main part 1, the other end of brush holder main part 1 is equipped with brush holder shell 3, the section of brush holder shell 3 is circular structure, and the central axis of brush holder shell 3 coincides with the central axis of brush holder main part 1;

[0027] One end of the brush holder shell 3 is equipped with the conductive component 4, the surface of the conductive component 4 is equipped with the connecting copper head 5, the connecting copper head 5 is located at the surface center of the conductive component 4, one end of the brush holder main part 1 is equipped with the fixed nut 6, the fixed nut 6 movably sleeve connects on the surface of the brush holder shell 3, one end of the brush holder main part 1 is equipped with the first rubber ring 7, one end of the brush holder main part 1 is equipped with the second rubber ring 8, the surface of the brush holder shell 3 is equipped with the mounting thread 9;

[0028] The first rubber ring 7 and the second rubber ring 8 are respectively located at the two sides of the fixed nut 6, the inside of the brush holder main part 1 is equipped with the brush whip 10, the brush whip 10 is located at the inside center of the brush holder main part 1, and one end of the brush whip 10 is connected with one end of the carbon brush body 2, the other end of the brush whip 10 is connected with the conductive component 4, the inside of the brush holder main part 1 is equipped with the connecting spring 11, the connecting spring 11 is attached with the inner wall of the brush holder main part 1;

[0029] One end of the connecting spring 11 extends to the inside of the brush holder shell 3, one side of the brush holder main part 1 is equipped with the machine shell main part 12, the surface center of the machine shell main part 12 is equipped with the limit clamping groove 14, the limit clamping groove 14 is movably clamped with the fixed nut 6, the inside of the machine shell main part 12 is equipped with the installation limit hole 15, the installation limit hole 15 is connected with the limit clamping groove 14, one side of the machine shell main part 12 is equipped with the slip ring assembly 13;

[0030] The slip ring assembly 13 is sleeved on the surface of the brush holder body 1, and the slip ring assembly 13 is detachably connected to the installation limit hole 15. One end of the slip ring assembly 13 is connected to the rotor 16. A chip groove 17 is provided inside the carbon brush body 2. The chip groove 17 is located at the center of the carbon brush body 2, and the chip groove 17 is located at the end of the carbon brush body 2 and away from one end of the brush whip 10. A connecting wire 18 is provided inside the brush holder body 1.

[0031] The connecting wire 18 is embedded in the brush whip 10 , one end of the connecting wire 18 is connected to the carbon brush body 2 , and the other end of the connecting wire 18 is connected to the connecting copper head 5 .

[0032] Specifically, the brush holder body 1 is made of H62 material, which improves the conductive performance and facilitates processing. The surface of the brush holder housing 3 is provided with a mounting thread 9, and the mounting thread 9 and the housing body 12 are connected by a threaded connection, which is easy to install and replace while fitting tightly. At the same time, the matching part of the brush holder body 1 and the carbon brush body 2 adopts a rectangular shell structure, and a step is formed at the connection with the brush holder housing 3, which plays a role in limiting the use of the carbon brush body 2 and the connecting spring 11 (SUS304) during installation.

[0033] A fixing nut 6 is fitted onto one end of the brush holder body 1, the first rubber ring 7 and the second rubber ring 8 are respectively located on both sides of the fixing nut 6, a limiting slot 14 is provided at the center of the surface of the casing body 12, and the limiting slot 14 is movably engaged with the fixing nut 6, so that the installation depth of the brush holder body 1 and the casing body 12 can be adjusted during assembly, thereby achieving the effect of preventing falling off.

[0034] The working principle of the new grounding carbon brush structure for new energy vehicles proposed in the embodiment of the present utility model is as follows:

[0035] The MG89 material with a high copper content is selected. On the basis of meeting the current requirements, the wear of the carbon brush body 2 is controlled by the brush holder body 1 made of H62, which improves the conductive performance and is easy to process. The surface of the brush holder housing 3 is provided with a mounting thread 9, and the mounting part is connected to the housing body 12 through the mounting thread 9. It is easy to install and replace while fitting tightly. At the same time, the matching part of the brush holder body 1 and the carbon brush body 2 adopts a rectangular shell structure, and a step is formed at the connection with the brush holder housing 3, which plays a role in limiting the use of the carbon brush body 2 and the connecting spring 11 (SUS304) during installation.

[0036] The fixed nut 6 is attached to one end of the brush holder body 1, the first rubber ring 7 and the second rubber ring 8 are respectively located on the two sides of the fixed nut 6, the limiting clamping groove 14 is arranged on the surface center of the shell body 12, and the limiting clamping groove 14 and the fixed nut 6 are movably connected, so that the assembly depth of the brush holder body 1 and the shell body 12 can be adjusted, and the falling-off prevention effect is achieved.

[0037] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features can be replaced equivalently, and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the utility model.

Claims

1. A new type of grounding carbon brush structure for new energy vehicles, comprising a brush holder body (1), characterized in that: A carbon brush body (2) is embedded in one end of the brush holder body (1), a brush holder housing (3) is provided at the other end of the brush holder body (1), a conductive component (4) is provided at one end of the brush holder housing (3), a fixing nut (6) is fitted on one end of the brush holder body (1), and a connecting spring (11) is provided inside the brush holder body (1); A housing body (12) is provided on one side of the brush holder body (1), a mounting limit hole (15) is provided inside the housing body (12), a slip ring assembly (13) is provided on one side of the housing body (12), one end of the slip ring assembly (13) is connected to a rotor (16), a chip removal groove (17) is provided inside the carbon brush body (2), and the chip removal groove (17) is located at the end of the carbon brush body (2) and away from one end of the brush whip (10), and a connecting wire (18) is provided inside the brush holder body (1).

2. The new grounding carbon brush structure for new energy vehicles according to claim 1 is characterized in that: The cross-sections of the carbon brush body (2) and the brush holder body (1) are both rectangular structures; one end of the carbon brush body (2) is movably connected to one end of the brush holder body (1); and the central axis of the carbon brush body (2) coincides with the central axis of the brush holder body (1).

3. The new grounding carbon brush structure for new energy vehicles according to claim 2 is characterized in that: The cross-section of the brush holder housing (3) is a circular structure, and the central axis of the brush holder housing (3) coincides with the central axis of the brush holder body (1).

4. The new grounding carbon brush structure for new energy vehicles according to claim 1 is characterized in that: A connecting copper head (5) is provided on the surface of the conductive component (4), and the connecting copper head (5) is located at the center of the surface of the conductive component (4). One end of the connecting wire (18) is connected to the carbon brush body (2), and the other end of the connecting wire (18) is connected to the connecting copper head (5).

5. The new grounding carbon brush structure for new energy vehicles according to claim 2 is characterized in that: The fixing nut (6) is movably sleeved on the surface of the brush holder housing (3); a first rubber ring (7) is provided at one end of the brush holder body (1); a second rubber ring (8) is provided at one end of the brush holder body (1); a mounting thread (9) is provided on the surface of the brush holder housing (3); the first rubber ring (7) and the second rubber ring (8) are respectively located on both sides of the fixing nut (6).

6. The new grounding carbon brush structure for new energy vehicles according to claim 1 is characterized in that: A brush whip (10) is provided inside the brush holder body (1), and the brush whip (10) is located at the center of the brush holder body (1). One end of the brush whip (10) is connected to one end of the carbon brush body (2), and the other end of the brush whip (10) is connected to the conductive component (4).

7. The new grounding carbon brush structure for new energy vehicles according to claim 6 is characterized in that: The connecting spring (11) is fitted with the inner wall of the brush holder body (1), one end of the connecting spring (11) extends to the inside of the brush holder housing (3), a limiting slot (14) is provided at the center of the surface of the housing body (12), the limiting slot (14) is movably engaged with the fixing nut (6), and the installation limiting hole (15) is connected to the limiting slot (14).

8. The new grounding carbon brush structure for new energy vehicles according to claim 2 is characterized in that: The slip ring assembly (13) is sleeved on the surface of the brush holder body (1), and the slip ring assembly (13) is detachably connected to the installation limit hole (15), and the chip removal groove (17) is located at the inner center of the carbon brush body (2).

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