Conducting ring, motor and automobile

Abstract

The utility model relates to the field of motor assembly, in particular to a conducting ring, a motor and an automobile. According to the conductive ring, at least one end wall of the fixed ring is stamped inwards to form a plurality of stamping parts, and the corresponding carbon brushes can be clamped through the stamping parts, so that fastener-free fixation of the carbon brushes is realized. Therefore, the assembling process of the conducting ring is simplified, the manufacturing cost is reduced, full-automatic manufacturing is facilitated, and the production efficiency is improved. And meanwhile, the carbon brush is fixed by the stamping part, so that the stability and the reliability of the carbon brush on the fixing ring are ensured, and good contact performance can be kept even if the carbon brush runs for a long time or is subjected to external force, thereby improving the mechanical strength and the conductive stability of the conductive ring.

Description

TECHNICAL FIELD

[0001] The utility model relates to motor assembly field, concretely is related to a kind of conducting ring, motor and automobile. BACKGROUND

[0002] In the field of power transmission and mechanical transmission, the conducting ring as a kind of key connecting component is widely used in various rotating equipment, such as motor, generator and automobile driving system, etc. The traditional conducting ring design usually adopts metal ring or metal brush to directly contact with the conducting rail. Although this design meets the conducting demand to some extent, the friction between metals will generate a lot of heat and wear when running for a long time or rotating at high speed, which leads to the decline of conducting performance and even affects the normal operation and service life of the equipment.

[0003] Especially in the automobile industry, with the popularity of electric vehicles and hybrid vehicles, higher requirements are put forward for the performance and reliability of driving motor. The traditional conducting ring design often appears to be inadequate when dealing with high speed, high load and complex working conditions.

[0004] In order to solve this problem, the prior art adopts carbon brush structure, specifically: fastening parts (such as screws, clamping springs, etc.) are used to fix the carbon brush on the fixed ring. However, this kind of structure design has the following problems: first, using fastening parts to fix the carbon brush not only increases the manufacturing cost, but also makes the assembly process complicated, reduces the production efficiency. Especially in large-scale production or automated manufacturing environment, the use of fastening parts increases the additional assembly steps and quality control points, which is not conducive to improving production efficiency and reducing cost; secondly, the fastening parts may loosen or be damaged when running for a long time or subjected to external forces such as vibration and impact, which leads to poor contact between the carbon brush and the fixed ring, and further affects the conducting performance. Especially in high-speed rotating motor or generator, this poor contact may cause serious electrical fault, and even cause equipment damage. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of conducting ring that can realize the fixation of no fastening part, which not only simplifies the assembly process of conducting ring, reduces manufacturing cost, but also is beneficial to realize full automation manufacturing, improves production efficiency.

[0006] In order to achieve the above purpose, the utility model provides the following technical scheme: a kind of conducting ring, including fixed ring and a plurality of carbon brushes arranged on the fixed ring, each carbon brush includes a bundle of conductive fibers and a clamping part for fixing one end of the bundle of conductive fibers, one end of the clamping part is assembled into the fixed ring, and a plurality of stamping parts are formed by stamping inward on at least one end wall of the fixed ring, and the clamping part of the corresponding carbon brush is clamped.

[0007] Further, each of the stamping parts is clamped on two sides of the corresponding clamping part.

[0008] Further, each of the stamping parts is clamped on a contact wall of the corresponding clamping part, and the contact wall is in contact with and parallel to the inner side of the end wall.

[0009] Further, the stamping part has a resisting surface for resisting the fixing ring, and the resisting surface is in a wave shape or a zigzag shape.

[0010] Further, the stamping part is formed by being concave downward from the end wall, and the periphery of the stamping part is continuously connected with the end part, or part of the stamping part is disconnected with the end part.

[0011] Further, the fixing ring is formed with a plurality of assembly grooves, and the plurality of carbon brushes are assembled in the corresponding assembly grooves, and the stamping part is at least partially located in the assembly groove.

[0012] Further, the thickness of the end wall of the fixing ring, in which the stamping part is formed, is 0.3-1mm.

[0013] Further, the cross section of the clamping part is in a regular polygon shape, and two oppositely arranged side walls in the clamping part are respectively in contact with and parallel to the inner side of two end walls of the fixing ring.

[0014] The utility model also provides a motor, including motor shaft and casing, be provided with above -mentioned conducting ring between motor shaft and casing.

[0015] The utility model also provides a car, including vehicle body and drive assembly installed in vehicle body, drive assembly includes above -mentioned motor.

[0016] The utility model discloses the beneficial effect lies in: the application is formed with a plurality of stamping parts on at least one end wall of the fixing ring by being inwardly stamped, and the corresponding carbon brush can be clamped by the stamping part, so that the fastener-free fixing of the carbon brush is realized.

[0017] The above description is only a summary of the technical scheme of the utility model, in order to more clearly understand the technical means of the utility model, and can be implemented according to the content of the specification, the following preferred embodiments of the utility model are described in detail with the help of the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 Structure diagram of the conductive ring shown in an embodiment of the present application;

[0019] Figure 2 Structure diagram of the fixed ring shown in an embodiment of the present application; Figure 1 Structure diagram of the fixed ring shown in an embodiment of the present application;

[0020] Figure 3 Structure diagram of the fixed ring shown in an embodiment of the present application; Figure 1 Structure diagram of the fixed ring shown in an embodiment of the present application;

[0021] Figure 4 Structure diagram of the conductive ring shown in another embodiment of the present application. DETAILED DESCRIPTION

[0022] The technical solutions of the present application will be described clearly and completely below with reference to the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application. In the description of the present application, it should be noted that the orientations or positional relationships indicated by the terms “center”, “upper”, “lower”, “left”, “right”, “vertical”, “horizontal”, “inner”, “outer” and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and thus cannot be understood as indicating or implying that the devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus cannot be understood as a limitation on the present application. In addition, the terms “first”, “second”, “third” are only for the purpose of description, and cannot be understood as indicating or implying relative importance. In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms “mounting”, “connection”, “connecting” should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integrally connected; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, and can be the communication between two elements. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances. In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0023] Embodiment 1

[0024] Please refer to Figures 1 to 3The conductive ring shown in an embodiment of the present application comprises a fixed ring 10 and a plurality of carbon brushes 20 arranged on the fixed ring 10. Each carbon brush 20 comprises a bundle of conductive fibers 21 and a clamping member 22 for clamping one end of the bundle of conductive fibers 21. The end of each carbon brush 20 where the clamping member 22 is arranged is fitted into the fixed ring 10, and at least one end wall 11 of the fixed ring 10 is inwardly punched to form a plurality of punched portions 12, which clamp the clamping member 22 of the corresponding carbon brush 20. In this embodiment, only one end wall 11 of the fixed ring 10 is inwardly punched to form the punched portions 12. In other embodiments, in order to improve the fixation of the fixed ring 10, both end walls 11 are inwardly punched to form the punched portions 12.

[0025] The conductive ring described above is fixed by inwardly punching at least one end wall 11 of the fixed ring 10 to form a plurality of punched portions 12, which clamp the corresponding carbon brush 20, thereby realizing the fastener-free fixation of the carbon brush 20. In this way, not only is the assembly process of the conductive ring simplified and the manufacturing cost reduced, but also the fully automated manufacturing is facilitated and the production efficiency is improved. At the same time, the fixation of the carbon brush 20 by the punched portions 12 ensures the stability and reliability of the carbon brush 20 on the fixed ring 10, and even when running for a long time or being subjected to external forces, the carbon brush 20 can still maintain good contact performance, thereby improving the mechanical strength and conductive stability of the conductive ring.

[0026] It should be noted that in this embodiment, the punched portions 12 are formed by downwardly recessing from the end wall 11, and the periphery of the punched portions 12 is continuously connected with the end wall 11, so that the structural stability of the punched portions 12 can be enhanced. In other embodiments, during punching, part of the punched portions 12 and the end wall 11 can be simultaneously disconnected, so that the punched portions 12 are more deeply recessed into the fixed ring 10, so that the punched portions 12 can more abut against the clamping member 22 and provide more fixation and support points.

[0027] In this embodiment, each punched portion 12 clamps both sides of the corresponding clamping member 22, specifically, each punched portion 12 has two sub-punched portions, which are respectively located on both sides of the clamping member 22. The punched portion 12 has an abutting surface for abutting against the side wall of the clamping member 22. The abutting surface is wavy or zigzag-shaped, so that a more secure clamping effect is provided by the wavy or zigzag shape, while reducing damage to the material of the clamping member 22.

[0028] In detail, in the embodiment, the cross section of the clamping member 22 is a regular hexagon, two opposite side walls of the clamping member 22 are in contact with and parallel to the inner side of the two end walls 11 of the fixing ring 10, the side walls of the clamping member 22 in contact with and parallel to the two end walls 11 can be referred to as contact walls, and the other side walls of the clamping member 22 are symmetrically arranged and form a certain angle with the end walls 11. The stamping part 12 abuts against two symmetric side walls. In other embodiments, the cross section of the clamping member 22 can also be other regular polygons, and the regular polygon structure is formed by stamping after the clamping member 22 wraps the conductive fiber bundle 21, thereby improving the stability of the clamping member 22 to the conductive fiber bundle 21 and preventing the conductive fibers in the conductive fiber bundle 21 from being pulled out. Alternatively, the cross section of the clamping member 22 can also be circular or elliptical. In actual production and manufacturing, a regular polygon is preferred, and a regular hexagon is the best, which increases the contact area between the carbon brush 20 and the clamping member 22 and helps to improve the stability of the carbon brush 20 in the clamping member 22.

[0029] In order to facilitate the positioning of the carbon brush 20 in the fixing ring 10, in an embodiment, a plurality of assembly grooves 13 are formed in the fixing ring 10, and the assembly grooves 13 pass through the inner side wall 14 and the outer side wall 15. A plurality of carbon brushes 20 are assembled in the corresponding assembly grooves 13, and the stamping part 12 is at least partially located in the assembly groove 13. The solid part 16 between the two adjacent assembly grooves 13 is a reinforcing part, thereby improving the strength of the conductive ring. Of course, in other embodiments, the fixing ring 10 can also not form the assembly groove 13, for example, the fixing ring 10 only includes two oppositely arranged end walls 11 and an outer side wall connecting the two end walls 11, and the end wall 11 and the outer side wall form a cavity for assembling the carbon brush 20, wherein the side opposite to the outer side wall is an opening for inserting the carbon brush 20 into the cavity. Alternatively, in another embodiment, an inner side wall is formed at the opening, and the assembly groove 13 is formed in the inner side wall. In some further embodiments, the assembly groove 13 passes through the outer side wall. Similarly, when the fixing ring 10 forms a cavity, in order to enhance the strength of the conductive ring, a reinforcing rib can be formed in the end wall 11 of the region where the stamping part 12 is not formed.

[0030] In automated production and manufacturing, in order to facilitate the implementation of forming the stamping part 12 on the end wall 11 while ensuring the strength of the conductive ring, in the embodiment, the thickness of the end wall 11 of the fixing ring 10 where the stamping part 12 is formed is 0.3-1 mm. By adopting this value, the thickness of the entire conductive ring can be reduced to 3 mm, which also helps to reduce the thickness of the entire conductive ring.

[0031] Embodiment 2

[0032] See Figure 4The structure of the conductive ring provided by another embodiment of the present application is substantially the same as that of the conductive ring provided by the embodiment 1, with the difference that the positions of the stamping parts 12 are different. Specifically, in the present embodiment, each stamping part 12 is clamped on the contact wall of the fixed ring 10, which is in contact with the inner side of the end wall 11 and is arranged in parallel. The stamping part 12 also has an abutting surface, which abuts against the contact wall of the fixed ring 10, and the abutting surface is in a wave shape or a zigzag shape. In order to improve the cavity, the stamping part 12 also has two sub-stamping parts, which are arranged in parallel, and of course, in other embodiments, the number of the sub-stamping parts can be more. In one of the embodiments, the stamping part 12 can be formed on only one end wall 11, or can be symmetrically formed on both end walls.

[0033] Embodiment 3

[0034] The motor provided by an embodiment of the present application comprises a motor shaft and a shell, and a conductive ring is arranged between the motor shaft and the shell. The motor shaft and the shell can adopt the existing structure, which will not be described here. The structure of the conductive ring can adopt the structure of the conductive ring described in the foregoing embodiment 1 or embodiment 2.

[0035] Embodiment 4

[0036] The automobile provided by an embodiment of the present application comprises a vehicle body, a moving assembly arranged below the vehicle body to realize the movement of the vehicle body, a driving assembly installed in the vehicle body, and a seat, a steering wheel and other structures arranged in the vehicle body. The vehicle body, the moving assembly, the seat and the like adopt the existing technology, and the driving assembly comprises the motor described in the foregoing embodiment 3.

[0037] The technical features of the above-described embodiments can be combined in any manner. In order to make the description simple, all possible combinations of the technical features in the above-described embodiments are not described, but as long as the combinations of the technical features do not exist, they should be considered as the scope of the present application.

[0038] The above-described embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as the limitation of the scope of the utility model patent. It should be pointed out that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the protection scope of the utility model patent should be subject to the appended claims.

Claims

1. An electrically conductive ring, characterized in that, The fixed ring and a plurality of carbon brushes arranged on the fixed ring, each of the carbon brushes comprising a bundle of conductive fibers and a clamping member for clamping one end of the bundle of conductive fibers, one end of the clamping member arranged in each of the carbon brushes is fitted into the fixed ring, at least one end wall of the fixed ring is inwardly punched to form a plurality of punched portions, the plurality of punched portions clamps the clamping member of the corresponding carbon brush.

2. The conductive ring of claim 1, wherein, Each of the punched portions clamps the clamping member on both sides of the corresponding carbon brush.

3. The conductive ring of claim 1, wherein, Each of the punched portions clamps the clamping member on the contact wall of the corresponding carbon brush, the contact wall is in contact with and arranged parallel to the inner side of the end wall.

4. The conductive ring of claim 2 or 3, wherein, The punched portion has a bearing surface against the fixed ring, the bearing surface is in a wave shape or a zigzag shape.

5. The conductive ring of any one of claims 2 to 3, wherein, The punched portion is concave downward from the end wall, the periphery of the punched portion is continuously connected with the end portion, or part of the punched portion is disconnected with the end portion.

6. The conductive ring of any one of claims 1 to 3, wherein, The fixed ring is formed with a plurality of fitting grooves, the plurality of carbon brushes are fitted into the corresponding fitting grooves, and the punched portion is at least partially located in the fitting groove.

7. The conductive ring of any one of claims 1 to 3, wherein, The thickness of the end wall of the fixed ring where the punched portion is formed is 0.3-1mm.

8. The conductive ring of any one of claims 1 to 3, wherein, The cross section of the clamping member is a regular polygon, two opposite side walls of the clamping member are respectively in contact with and arranged parallel to the inner side of the two end walls of the fixed ring.

9. An electric machine characterized by The electric machine shaft and the machine shell are arranged with the conductive ring as claimed in any one of claims 1 to 8.

10. An automobile characterized by comprising: The drive assembly comprises the electric machine as claimed in claim 9.

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