Rivet separation type conducting ring and motor

Abstract

The invention provides a rivet separation type conducting ring and a motor, and is applied to the technical field of conducting rings. A base and a cover plate are matched to clamp a conducting part; a first fixing hole is formed in the base, a second fixing hole is formed in the cover plate, the cylinder part penetrates through the first fixing hole and the second fixing hole, and the limiting part is located on the side, away from the cover plate, of the base or the side, away from the base, of the cover plate, so that the rivet is fixedly connected with the base and the cover plate through riveting deformation of the cylinder part. The cylinder part of the rivet penetrates through the first fixing hole of the base and the second fixing hole of the cover plate, the limiting part of the rivet abuts against the riveting tool, the rivet bears the axial force of the riveting shaft through the limiting part during riveting, the base and the rivet are not subjected to integrated die casting any more, then the riveting tool is not supported by the base, the probability of base deformation is reduced, and the riveting efficiency is improved. The size of the base is within a specified range, the problem of rivet cracking caused by integral pressure casting of the rivet and the base does not exist, and the reject ratio of the base when the base is installed into a machine shell is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of conductive rings, and in particular to a rivet-separated conductive ring and a motor. Background Art

[0002] During the use of the motor, a bearing protection device is usually used to protect the motor bearings. The bearing protection device can effectively control the shaft voltage and bearing current. The existing bearing protection solution is to establish a shaft voltage discharge channel outside the bearing to protect the bearing from electrical corrosion by reducing the voltage, thereby extending the service life of the bearing.

[0003] In the related technology, there is a protective conductive ring, which includes a base, a conductive part and a cover plate. The base is used to place the conductive part. The rivets are die-cast on the base as a whole. The cover plate is located above the base. The rivets pass through the cover plate, and the cover plate is connected to the base by riveting, so that the cover plate and the base cooperate to fix the conductive part. However, the rivets are die-cast on the base as a whole. The rivets will cause the base to be easily deformed during the riveting process, and then the size of the base will easily exceed the specified range, which will cause the base to be defective during installation.

[0004] Based on this, a new technical solution is needed. Summary of the invention

[0005] In view of this, the present application provides a rivet-separated conductive ring and a motor.

[0006] This application provides the following technical solutions:

[0007] A rivet-separated conductive ring according to the present application comprises a cover plate, a base, a conductive member and a rivet, wherein the base and the cover plate cooperate to clamp the conductive member;

[0008] The rivet includes a limiting portion and a column portion fixed on the limiting portion, a first fixing hole is provided on the base, a second fixing hole is provided on the cover plate, the column portion is inserted through the first fixing hole and the second fixing hole, and the limiting portion is located on a side of the base away from the cover plate or a side of the cover plate away from the base, so that the rivet is fixedly connected to the base and the cover plate through riveting and deformation of the column portion.

[0009] Preferably, the rivet is a nail-shaped object made of a material with high ductility.

[0010] Preferably, a first countersunk hole is formed at the opening of the second fixing hole away from the base, so that the end of the column part away from the limiting part is placed in the first countersunk hole after being deformed by riveting; and / or a second countersunk hole is formed at the opening of the first fixing hole away from the cover plate, so that the limiting part is placed in the second countersunk hole.

[0011] Preferably, the base includes an outer ring bracket and an annular holder, the outer ring bracket includes a placement ring plate and an outer ring plate; the annular holder is provided with a mounting hole for mounting the conductive member, and the mounting hole extends toward the inner side of the annular holder so that the conductive member protrudes from the inner side of the base;

[0012] The annular retainer is placed on the placement ring plate, the cover plate is located above the annular retainer, and the cover plate and the placement ring plate cooperate to clamp the conductive member so that the conductive member is press-fitted into the mounting hole;

[0013] The outer ring plate is fixed on the placement ring plate, and the outer ring plate is arranged around the outer side of the annular retainer, and an annular gap is formed between the outer ring plate and the outer side of the annular retainer.

[0014] Preferably, the outer ring plate is arranged at the edge position of the placement ring plate, and the outer ring bracket is a stamped plate.

[0015] Preferably, the limiting portion abuts against a side of the placement ring plate facing away from the cover plate, and the rivet and the outer ring bracket form a stamped pre-fixed part.

[0016] Preferably, the gap distance of the annular gap is 0.3-0.7 mm.

[0017] Preferably, the outer ring plate is configured as an elastic thin plate.

[0018] Preferably, a first positioning portion and a second positioning portion are provided on the side wall of the conductive member, and the mounting hole comprises a hole body portion and a positioning hole portion plugged and positioned with the first positioning portion, and the second positioning portion abuts against the inner side of the annular retaining frame.

[0019] Preferably, the diameter from the upper opening of the mounting hole to the lower opening of the mounting hole gradually decreases; and / or the diameter from the upper inner ring opening of the annular retaining frame to the lower inner ring opening of the annular retaining frame gradually increases.

[0020] A motor is also provided according to the present application, comprising a motor housing, a motor shaft and any of the above-mentioned rivet-separated conductive rings, wherein the base is installed in the motor housing so that the conductive member overlaps the motor shaft.

[0021] Compared with the prior art, the beneficial effects that can be achieved by at least one of the above technical solutions adopted in the present application include at least:

[0022] The cylindrical part of the rivet of the present application passes through the first fixing hole of the base and the second fixing hole of the cover plate, and the limiting part of the rivet abuts against the riveting tooling. When the rivet is riveted, the limiting part bears the axial riveting force. The base and the rivet are no longer integrally die-cast, and thus the base does not abut against the riveting tooling, reducing the probability of deformation of the base, keeping the size of the base within the specified range, and eliminating the problem of cracking of the rivet caused by the integral die-casting of the rivet and the base, reducing the defective rate when the base is installed into the casing. Brief Description of the Drawings

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0024] Figure 1 is a cross-sectional view of the conductive ring without the rivet in the present application;

[0025] Figure 2 is the first exploded view of the conductive ring without the rivet in the present application;

[0026] Figure 3 is the second exploded view of the conductive ring without the rivet in the present application;

[0027] Figure 4 is a schematic diagram of the rivet in the present application;

[0028] Figure 5 is the exploded view of the conductive ring in the present application;

[0029] Figure 6 is a schematic diagram of the annular gap highlighting the conductive ring in the present application;

[0030] Figure 7 is a partial schematic diagram of the conductive part before assembly highlighting in the present application;

[0031] Figure 8 is a partial schematic diagram of the conductive part after assembly highlighting in the present application;

[0032] Figure 9 is a partial exploded view highlighting the draft angles in the circumferential and radial directions of the conductive ring in the present application.

[0033] Reference Numerals: 1. Base; 101. Outer Ring Bracket; 1011. Placing Ring Plate; 1012. Outer Ring Plate; 102. Ring-shaped Retaining Frame; 2. Conductive Part; 3. Rivet; 301. Limiting Part; 302. Cylindrical Part; 4. Cover Plate; 5. First Fixing Hole; 6. Second Fixing Hole; 7. Installation Groove; 8. Annular Gap; 9. Positioning Hole Part; 10. Hole Body Part. Detailed implementation manners

[0034] The embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0035] The following uses specific specific examples to illustrate the implementation manners of the present application. Those skilled in the art can easily understand other advantages and effects of the present application from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The present application can also be implemented or applied through other different specific implementation manners. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that, without conflict, the following embodiments and the features in the embodiments can be combined with each other. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without making creative efforts belong to the scope of protection of the present application.

[0036] It should be noted that the following describes various aspects of the embodiments within the scope of the appended claims. It should be obvious that the aspects described herein can be embodied in a wide variety of forms, and any specific structure and / or function described herein is illustrative only. Based on the present application, those skilled in the art should understand that one aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspects described herein can be used to implement the device and / or practice the method. In addition, this device and / or practice this method can be implemented using other structures and / or functions in addition to one or more of the aspects described herein.

[0037] It should also be noted that the drawings provided in the following embodiments only illustrate the basic concept of the present application schematically. Only the components related to the present application are shown in the drawings, rather than being drawn according to the number, shape and size of the components in actual implementation. The type, quantity and proportion of each component in its actual implementation can be an arbitrary change, and the component layout type may also be more complex.

[0038] In addition, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, those skilled in the art will understand that the examples can be practiced without these specific details.

[0039] In view of this, through in-depth research and improvement exploration of the conductive ring, the applicant found that: the Chinese utility model patent document with the publication number CN217643069U discloses a fiber holder, a bearing electro-corrosion protection conductive ring and a motor. The fiber holder is installed through a bracket, and a cover plate is fixed on the outside, but its structure is relatively complex, the installation process is cumbersome, and the manufacturing cost is relatively high. Although the above technical solution can meet the requirements, there are still some problems. The prior art adopts a design of integrally die-casting the base and the rivet. The base can be equivalent to the bracket in the above patent document. It is found in the production process that the rivet is prone to cracking, and the riveting process will incidentally cause deformation of the outer diameter of the base. For example, the axial force of riveting causes pressure deformation of the base. Once the outer diameter is deformed, both the outer diameter size and the cylindricity may exceed the specified range, resulting in poor installation for the customer.

[0040] Based on this, the following will describe the technical solutions provided by the embodiments of the present application with reference to the accompanying drawings.

[0041] An embodiment of this specification proposes a conductive ring of a ring-shaped cage 102 type, as Figure 1 , Figure 2 and Figure 3 shown, including a base 1, a cover plate 4 and a conductive member 2. The base 1 includes an outer ring bracket 101 and a ring-shaped cage 102. The outer ring bracket 101 includes a placement ring plate 1011 and an outer ring plate 1012. The ring-shaped cage 102 is provided with an installation hole for installing the conductive member 2, and the installation hole extends and opens towards the inner side of the ring-shaped cage 102, so that the conductive member 2 protrudes from the inner side of the base 1; the ring-shaped cage 102 is placed on the placement ring plate 1011, the cover plate 4 is located above the ring-shaped cage 102, and the cover plate 4 and the placement ring plate 1011 cooperate to clamp the conductive member 2, so that the conductive member 2 is press-fitted into the installation hole with an interference fit; the outer ring plate 1012 is fixed on the placement ring plate 1011, and the outer ring plate 1012 is arranged around the outside of the ring-shaped cage 102, and an annular gap 8 is formed between the outer ring plate 1012 and the outside of the ring-shaped cage 102.

[0042] Among them, the base 1 is ring-shaped, and a gap is designed between the ring-shaped cage 102 and the outer ring bracket 101. During the riveting process, the ring-shaped cage 102 is deformed by force extrusion. Due to the existence of the gap, the radial deformation of the ring-shaped cage 102 will not be transmitted to the outer ring bracket 101, and the deformation of the outer diameter of the base 1 will not be caused, optimizing the performance of the finished product and improving the yield rate.

[0043] In one embodiment, as Figure 1 and Figure 6 shown, the gap distance of the annular gap is 0.3 - 0.7 mm. The gap distance of the annular gap is preferably 0.5 mm.

[0044] In one embodiment, as Figure 1 andFigure 2 As shown, the outer ring plate 1012 is arranged at the edge position where the ring plate 1011 is placed, and the outer ring bracket 101 is a stamped plate.

[0045] In one embodiment, if Figure 2 As shown, the outer ring plate 1012 is configured as an elastic thin plate.

[0046] In one embodiment, if Figure 2 As shown, the thickness of the outer ring plate 1012 is between 0.2 mm and 0.5 mm.

[0047] In one embodiment, if Figure 2 As shown, the annular retainer 102 is a die-casting part. The annular retainer 102 is produced by a die-casting process.

[0048] In one embodiment, if Figure 4 and Figure 5 As shown, the conductive ring also includes a rivet 3; the rivet 3 includes a limiting portion 301 and a column portion 302 fixed on the limiting portion 301, a first fixing hole 5 is opened on the base 1, a second fixing hole 6 is opened on the cover plate 4, the column portion 302 is inserted into the first fixing hole 5 and the second fixing hole 6, and the limiting portion 301 is located on the side of the base 1 away from the cover plate 4 or the side of the cover plate 4 away from the base 1, so that the rivet 3 is fixedly connected to the base 1 and the cover plate 4 through riveting and deformation of the column portion 302.

[0049] When the rivet 3 is riveted, the riveting tooling is supported by the limiting portion 301, and the base 1 is not supported by the tooling, which reduces the probability of deformation of the base 1. Before riveting, the column portion 302 can be adapted to be plugged in or basically adapted to be plugged in with the first fixing hole 5 and the second fixing hole 6, with a gap of about 0.1 mm. The rivet 3 and the conductive member 2 can both be produced by machine tool processing. The surface of the column portion 302 away from the limiting portion 301 is provided with an installation groove 7 for convenient riveting positioning. The first fixing hole 5 is passed through to place the ring plate 1011 and the annular retainer 102.

[0050] In the related art, the base 1 is used to place the conductive part 2, the rivet 3 is integrally die-cast on the base 1, the cover plate 4 is located above the base 1, the rivet 3 passes through the cover plate 4, and the cover plate 4 is riveted to the base 1 by the rivet 3, so that the cover plate 4 and the base 1 cooperate to fix the conductive part 2, but the rivet 3 is integrally die-cast on the base 1, and the rivet 3 will cause the base 1 to be easily deformed during the riveting process, and then the size of the base 1 is likely to exceed the specified range, which will cause the base 1 to be defective during installation.

[0051] The cylindrical portion 302 of the rivet 3 of the present application passes through the first fixing hole 5 of the base 1 and the second fixing hole 6 of the cover plate 4, and the limiting portion 301 of the rivet 3 abuts against the riveting tooling. When the rivet 3 is riveted, the limiting portion 301 bears the axial riveting force. The base 1 and the rivet 3 are no longer integrally die-cast, and thus do not abut against the riveting tooling through the base 1, reducing the probability of deformation of the base 1, keeping the size of the base 1 within the specified range, and there is also no problem of cracking of the rivet 3 caused by the integral die-casting of the rivet 3 and the base 1, reducing the defect rate when the base 1 is installed into the casing.

[0052] In one embodiment, as Figure 4 shown, the rivet 3 is a nail-shaped object made of a material with a high elongation rate. In the related art, both the base 1 and the rivet 3 are made of ADC12 die-cast aluminum. The base 1 of the present application can still be made of ADC12 die-cast aluminum. The material with a high elongation rate is preferably 6061-T6 or 5052-0 aluminum alloy, which improves the riveting quality while solving the problem of cracking of the rivet 3 and increasing the yield rate.

[0053] In one embodiment, as Figure 2 and Figure 4 shown, the limiting portion 301 abuts against the side of the placing ring plate 1011 away from the cover plate 4, and the rivet 3 and the outer ring bracket 101 form a stamping pre-fixed part. The rivet 3 and the outer ring bracket 101 are pre-fixedly connected by stamping. The outer ring bracket 101 adopts a stamping process and embeds the single rivet 3 into the outer piece to form a part, reducing the design difficulty of the automated production line.

[0054] In one embodiment, as Figure 2 and Figure 5 shown, a first countersunk hole is formed at the opening of the second fixing hole 6 away from the placing ring plate 1011, so that the end of the cylindrical portion 302 away from the limiting portion 301 is placed in the first countersunk hole after being deformed by riveting; and / or, a second countersunk hole is formed at the opening of the first fixing hole 5 away from the cover plate 4, so that the limiting portion 301 is placed in the second countersunk hole.

[0055] Among them, the cover plate 4, together with the placing ring plate 1011, clamps the annular cage 102 and the conductive member 2 up and down. The head of the rivet 3 after being riveted and blossomed is accommodated through the first countersunk hole reserved on the cover plate 4, so that it does not protrude from the end face of the finished product and affect the installation and use by the customer. The head of the rivet 3 is accommodated through the second countersunk hole reserved on the base 1, so that it does not protrude from the end face of the finished product and affect the installation and use by the customer.

[0056] In one embodiment, as Figure 2 and Figure 6As shown, the conductive member 2 is press-fitted into the corresponding installation hole with an interference fit; the side wall of the conductive member 2 is provided with a positioning structure, and the installation hole includes a hole body portion 10 and a positioning hole portion 9 that is inserted and positioned with the positioning structure. The positioning structure is a first positioning portion at the end of the conductive member 2 placed in the installation hole, and the hole body portion 10 communicates between the positioning hole portion 9 and the inner side of the annular cage 102; a second positioning portion is also provided on the conductive member 2, and the second positioning portion abuts against the inner side of the annular cage 102.

[0057] In one embodiment, as Figure 2 and Figure 6 shown, a plurality of installation holes are annularly distributed around the annular cage 102, and the first positioning portion is inserted into the positioning hole portion 9; the conductive member 2 between the first positioning portion and the second positioning portion is located in the hole body portion 10, and the exposed conductive member 2 is located inside the annular cage 102.

[0058] In the related art, the fixing degree of the conductive member 2 in the conductive ring is poor, and the uniformity is difficult to meet the requirements. In this application, the conductive member 2 is press-fitted into the installation hole with an interference fit, and is initially positioned by inserting the first positioning portion into the positioning hole portion 9, and then the second positioning portion abuts against the inner side of the annular cage 102 for secondary positioning, improving the fixing degree and uniformity of the conductive ring for the conductive member 2. The annular cage 102 fixes the fiber holder assembly through the reserved T-shaped groove, ensuring the interference fit between the T-shaped groove and the fiber holder assembly in the circumferential and radial directions.

[0059] In one embodiment, as Figure 2 shown, the first positioning portion and the second positioning portion are annularly arranged around the fiber holder. Among them, the first positioning portion and the second positioning portion are sandwiched between the placement ring plate 1011 and the cover plate 4.

[0060] In one embodiment, as Figure 2 shown, the conductive member 2 includes a fiber holder and conductive fibers fixed at one end in the fiber holder, and the other end of the conductive fibers protrudes beyond the inner edge of the base 1. The first positioning portion and the second positioning portion are provided at both ends of the fiber holder along the insertion direction of the fiber bundle.

[0061] Among them, the conductive fibers (fiber bundles) penetrate into the fiber holder and are riveted and fixed to form the conductive member 2 (fiber holder assembly).

[0062] In one embodiment, as Figure 7 、 Figure 8 and Figure 9 described, the diameter of the upper hole opening of the installation hole to the lower hole opening of the installation hole gradually decreases, so that the interference amount of the conductive member 2 gradually increases when it is press-fitted into the installation hole.

[0063] In one embodiment, as Figure 9As shown, the mounting holes are arranged to be relatively inclined in the circumferential direction and / or the radial direction of the base 1.

[0064] In one embodiment, as Figure 9 shown, the diameter of the upper inner ring opening of the annular cage 102 to the lower inner ring opening of the annular cage 102 gradually increases, so that the interference amount of the conductive member 2 further gradually increases when it is press-fitted into the mounting hole.

[0065] In one embodiment, as Figure 9 shown, the inner side of the annular cage 102 is arranged to be relatively inclined.

[0066] Due to the design of the draft angle in the T-shaped groove, a V-shaped cross-section will be formed. When the conductive member 2 is pressed into the T-shaped groove, the interference amount will increase more and more as it is pressed due to the draft angle, and finally the fiber holder is tightened in the circumferential direction. In the radial direction, also due to the design of the draft angle, during the pressing process of the conductive member 2, the interference amount will increase more and more as it is pressed due to the draft angle, and finally the fiber holder is tightened in the radial direction.

[0067] In one embodiment, as Figure 2 and Figure 5 shown, a plurality of rivets 3 and conductive members 2 are both arranged around the base 1; the rivets 3 are distributed at intervals among the plurality of conductive members 2. For example, there are 8 rivets 3, and the number of conductive members 2 spaced between the rivets 3 is, for example, 3.

[0068] In one embodiment, as Figure 2 shown, the cover plate 4 is annular, which is convenient for stamping the cover plate 4. The annular cage 102 of the present application meets all the requirements for product positioning, and the groove originally designed on the upper cover can be cancelled, reducing the processing difficulty of the upper cover. The upper cover can be changed to a stamping production process, reducing costs.

[0069] The embodiment of the present specification also discloses a motor, including a motor housing, a motor shaft, and the rivet-separable conductive ring according to any one of the above embodiments. The base 1 is installed in the motor housing so that the conductive member 2 overlaps the motor shaft.

[0070] The present application may be related to the fields of new energy vehicle drive systems, servo motor technologies, high-power white household appliances, generators, and large-scale special mechanical equipment. The present application is a conductive ring with a multi-piece annular cage 102 structure. The design of the rivet 3 is changed to a single standard rivet 3, and a material with a high elongation rate is used to improve the problem of cracking of the rivet 3 after press riveting. The base 1 of the present application is changed to a two-piece design, one is the outer ring bracket 101, and the other is the annular cage 102. There is a gap between the inner diameter of the outer ring bracket 101 and the annular cage 102. During riveting, due to the existence of the gap, the deformation of the annular cage 102 will not be transmitted to the outer ring bracket 101, improving the yield of the product.

[0071] This application can solve the problem that the rivet 3 and the base 1 are made of the same material in the existing solution, resulting in cracking of the rivet 3; it can solve the problem that the rivet 3 and the base 1 are integrated, resulting in the outer diameter deformation of the base 1 under stress. This application simplifies the design difficulty of the automated production line, improves the product performance and reduces the production cost by changing the production process of the base 1 and embedding the monomeric rivet 3 into the base 1. This application reduces the design difficulty and one-time investment of the automated production line, improves the technical difficulties of the existing solution, simplifies the design difficulty of each part, reduces the cost of each part of the product, and the stamping-type outer ring bracket 101 design reduces the installation difficulty and requirements of the client.

[0072] This application clamps the conductive part 2 between the placement ring plate 1011 and the cover plate 4 by using the mounting hole; installs the cover plate 4 on the annular cage 102, passes the rivet 3 through the cover plate 4, the annular cage 102, and the placement ring plate 1011, and fixes the above components together through the riveting process to form the final product. The finished product is installed and used by the interference fit between the outer circular surface of the conductive ring and the mounting hole of the customer (such as the mounting hole on the casing).

[0073] In this specification, the same or similar parts between each embodiment can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the embodiments described later, the description is relatively simple, and the relevant parts can refer to the partial description of the foregoing embodiments.

[0074] The above is only the specific implementation manner of this application, but the protection scope of this application is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by this application should be covered within the protection scope of this application. Therefore, the protection scope of this application should be subject to the protection scope of the claims.

Claims

1. A rivet-separable conductive ring, characterized in that, It comprises a cover plate, a base, a conductive member and a rivet, wherein the base and the cover plate cooperate to clamp the conductive member; The rivet includes a limiting portion and a column portion fixed on the limiting portion, a first fixing hole is provided on the base, a second fixing hole is provided on the cover plate, the column portion is inserted through the first fixing hole and the second fixing hole, and the limiting portion is located on a side of the base away from the cover plate or a side of the cover plate away from the base, so that the rivet is fixedly connected to the base and the cover plate through riveting and deformation of the column portion.

2. The rivet-separable conductive ring according to claim 1, wherein The rivet is a nail-shaped object made of a material with high ductility.

3. The split rivet type conductive ring according to claim 1, characterized in that, A first countersunk hole is formed at the opening of the second fixing hole away from the base, so that the end of the column part away from the limiting part is placed in the first countersunk hole after being deformed by riveting; and / or a second countersunk hole is formed at the opening of the first fixing hole away from the cover plate, so that the limiting part is placed in the second countersunk hole.

4. The split rivet type electrical slip ring according to claim 1, characterized in that, The base includes an outer ring bracket and an annular holder, the outer ring bracket includes a placement ring plate and an outer ring plate; the annular holder is provided with a mounting hole for mounting the conductive member, and the mounting hole extends toward the inner side of the annular holder so that the conductive member protrudes from the inner side of the base; The annular retainer is placed on the placement ring plate, the cover plate is located above the annular retainer, and the cover plate and the placement ring plate cooperate to clamp the conductive member so that the conductive member is press-fitted into the mounting hole; The outer ring plate is fixed on the placement ring plate, and the outer ring plate is arranged around the outer side of the annular retainer, and an annular gap is formed between the outer ring plate and the outer side of the annular retainer.

5. The rivet-separable conductive ring according to claim 4, wherein The outer ring plate is arranged at the edge position of the placement ring plate, and the outer ring bracket is a stamping plate.

6. The rivet-separable conductive ring according to claim 5, wherein The limiting portion abuts against a side of the placement ring plate away from the cover plate, and the rivet and the outer ring bracket form a stamping pre-fixed part.

7. The rivet-separable conductive ring according to claim 4, wherein, The gap distance of the annular gap is 0.3-0.7 mm.

8. The rivet-separable conductive ring according to claim 4, wherein, The outer ring plate is configured as an elastic thin plate.

9. The rivet-separable conductive ring according to claim 4, wherein A first positioning portion and a second positioning portion are provided on the side wall of the conductive member, and the mounting hole comprises a hole body portion and a positioning hole portion inserted and positioned with the first positioning portion, and the second positioning portion abuts against the inner side of the annular retainer.

10. The split rivet type electrical slip ring according to claim 9, characterized in that, The diameter from the upper opening of the mounting hole to the lower opening of the mounting hole gradually decreases; and / or the diameter from the upper inner ring opening of the annular retainer to the lower inner ring opening of the annular retainer gradually increases.

11. A motor, characterized in that, It comprises a motor housing, a motor shaft and a rivet-separated conductive ring as claimed in any one of claims 1 to 10, wherein the base is installed in the motor housing so that the conductive member overlaps the motor shaft.

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