Integrated electrode brush holder ring and sheath structure

Abstract

The utility model relates to the technical field of automobile motor accessories, and discloses an integrated electrode brush holder ring and sheath structure, which comprises a brush holder ring shell and a sheath shell, the brush holder ring shell and the sheath shell are integrally formed, and an internal circuit of the brush holder ring shell and an internal circuit of the sheath shell form an integrated structure. According to the utility model, the design is ingenious, and the brush holder ring shell and the sheath shell are injection-molded into the integrated structure, so that when the brush holder ring shell and the sheath shell are produced, the brush holder ring shell and the sheath shell which are in the integrated structure are directly injection-molded instead of being produced separately, thereby reducing the production time cost and improving the production efficiency. And meanwhile, the internal circuit of the brush carrier ring and the internal circuit of the sheath are communicated to form an integrated structure, so that the stability and the reliability of connection between the internal circuit of the brush carrier ring and the internal circuit of the sheath are ensured, and the performance of the motor is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of automotive motor parts, specifically to an integrated electrode brush holder ring and sheath structure. Background Technology

[0002] Existing motors all employ a brush holder ring structure, comprising a brush holder ring component, a spring component, and a baffle. The brush holder ring component is circular, while the brush holder ring component, spring component, and baffle are separate structures. The baffle's function is to mate with the bearing chamber of the motor housing to secure the ball bearing; the brush holder ring's function is to ensure the mating distance between the brush and the commutator and to assemble other components; the spring component's function is to collect the motor's "stop" (stop working) signal. This brush holder ring structure has the following drawbacks:

[0003] The traditional brush holder ring structure consists of separate components for the brush holder ring, spring, and baffle, making it complex and cumbersome to assemble. Furthermore, the circular shape of the brush holder ring makes assembly of the armature component difficult. To address these technical issues, Chinese patent document (CN107994718A) discloses a novel brush holder ring component structure for a rear wiper motor. The lower part of the brush holder ring body features a semi-circular opening structure corresponding to the baffle. The brush holder ring, the baffle in the rear wiper motor, and the spring are designed as a single unit. Additionally, the circuit connection between the brush holder ring component and the plug sheath utilizes a contact spring plate that engages with the plug plate.

[0004] Although the above technical solution integrates the baffle and spring components into a single brush holder ring assembly, and connects the brush holder ring assembly to the plug sheath via contact spring plates and plug plates, thus reducing the cumbersome assembly issues associated with separate structures, the following technical problems exist in actual use:

[0005] 1) Since the plug prongs of the plug sheath need to be inserted into the contact spring and the brush holder ring component, the contact spring needs to be customized during the production of the brush holder ring component in the above technical solution, which increases the cost of the production parts; at the same time, the contact spring also needs to be installed on the brush holder ring component, which increases the labor cost of installation.

[0006] 2) Since the plug prongs of the plug sleeve need to be inserted into the contact spring and brush holder ring components, the plug sleeve and brush holder ring components need to be produced separately during the production process, which increases the production time cost. At the same time, after the plug sleeve and brush holder ring components are produced separately, the plug prongs of the plug sleeve need to be manually inserted into the contact spring of the brush holder ring component, which increases the labor cost of production.

[0007] 3) In actual use, because the plug prongs of the plug sleeve need to be inserted into the contact spring plate and the brush holder ring component, the connection between the plug sleeve and the brush holder ring component is not stable, and the reliability of the connection between the two is poor, which affects the performance of the motor. Utility Model Content

[0008] The present invention aims to provide an integrated electrode brush holder ring and sheath structure, which can solve the above-mentioned technical problems of cost and reliability.

[0009] To achieve the above objectives, the present invention adopts the following technical solution:

[0010] 1) An integrated electrode brush holder ring and sheath structure, including a brush holder ring housing and a sheath housing, wherein the brush holder ring housing and the sheath housing are integrally formed, wherein the brush holder ring housing has a first brush, a second brush and a first spring piece, and wherein the sheath housing has a first insert, a second insert and a third insert that extend along the length direction of the brush holder ring housing and are bent downward.

[0011] The first insert extends towards the first spring at the end near the brush holder ring housing and is welded to the first spring to form a first circuit line. The second insert extends towards the inside of the brush holder ring housing and cooperates with the second brush to form a second circuit line. The third insert extends towards the inside of the brush holder ring housing and cooperates with the first brush to form a third circuit line. The internal circuit of the brush holder ring and the internal circuit of the sheath are connected through the first circuit line, the second circuit line and the third circuit line to form an integrated structure.

[0012] This utility model is ingeniously designed. By injection molding the brush holder ring housing and the protective housing into an integral structure, it is no longer necessary to produce the brush holder ring housing and the protective housing separately. Instead, they can be directly injection molded into an integral structure, thereby reducing production time and costs and improving production efficiency.

[0013] Furthermore, this utility model eliminates the contact spring sheet in the prior art and designs the plug piece in the plug sheath of the prior art into a first insert, a second insert, and a third insert extending toward the inside of the brush holder ring housing. Therefore, compared with the prior art, this design eliminates the need to produce the contact spring sheet and the plug piece separately, reducing the cost of producing parts and the labor cost of installing parts.

[0014] Meanwhile, the first, second, and third inserts of this invention extend along the length of the brush holder ring housing and are bent downwards to form an inverted L-shaped structure. This connects the first insert inside the sheath housing to the first circuit line inside the brush holder ring housing, the second insert inside the sheath housing to the second circuit line inside the brush holder ring housing, and the third insert inside the sheath housing to the third circuit line inside the brush holder ring housing. Therefore, the internal circuit of the brush holder ring and the internal circuit of the sheath are connected by the first, second, and third circuit lines to form an integrated structure, thereby ensuring the stability and reliability of the connection between the internal circuit of the brush holder ring and the internal circuit of the sheath, and thus improving the performance of the motor.

[0015] 2) According to the integrated electrode brush holder ring and sheath structure described in 1), wherein:

[0016] The brush holder ring housing and the sheath housing have a horizontally outwardly extending extension plate. The first spring clip is snapped into the extension plate. The end of the first spring clip facing the first insert has a first insertion hole. The end of the first insert facing the first spring clip has a protrusion that can be inserted into the first insertion hole, and the protrusion is fixed in the first insertion hole by welding.

[0017] The first circuit of this utility model consists of a first spring and a first insert, which replace the contact spring in the prior art, saving material costs. At the same time, the protruding head of the first insert is inserted into the first insertion hole of the first spring and the two are firmly connected by welding. This can ensure the stability and reliability of the first circuit between the internal circuit of the brush ring frame and the internal circuit of the sheath.

[0018] 3) According to the integrated electrode brush holder ring and sheath structure described in 2), wherein:

[0019] The extension plate is also fitted with a second spring piece parallel to the first spring piece. The end of the second spring piece near the first socket has a second socket. The end of the second spring piece facing the second spring piece has a connector that can be inserted into the second socket. The second socket also has an upper contact piece and a second wire welded to the connector. The upper contact piece is the upper contact end of the protector, and the second wire is the first terminal of the capacitor. The protector and the capacitor together form a second circuit line with the second brush.

[0020] The second circuit of this utility model includes a protector, a capacitor, and a second brush. When the second circuit between the internal circuit of the brush ring frame and the internal circuit of the sheath is integrated into a single structure, a point contact transmission method is adopted. The upper contact piece of the protector, the second wire of the capacitor, and the plug of the second plug are simultaneously locked in place by the second socket at the end of the second spring piece. This allows the upper contact piece, the second wire, and the plug to be attached to each other and welded together to form a single structure. This ensures the stability and reliability of the second circuit between the internal circuit of the brush ring frame and the internal circuit of the sheath. At the same time, it replaces the existing contact spring piece structure, saving material costs.

[0021] 4) According to the integrated electrode brush holder ring and sheath structure described in 3), wherein:

[0022] It also includes two contact wires, which are parallel to each other and synchronously snapped into the snap connector. The snap connector is located at the end of the third insert extending toward the first spring piece. The snap connector has snap holes that allow the ends of the two contact wires to be inserted, and the two contact wires are fixed in the snap holes by welding. One of the two contact wires is connected to a capacitor, and the other contact wire is connected to an inductor. The capacitor and inductor together form a third circuit line with the first brush.

[0023] The third circuit line of this utility model includes a capacitor, an inductor, and a first brush. When the third circuit line between the internal current of the brush ring frame and the internal circuit of the sheath is integrated into a single structure, a snap-fit ​​welding transmission method is adopted. The snap-fit ​​holes on the snap-fit ​​connector are used to snap-fit ​​and weld the two contact wires. At the same time, the two contact wires are designed to be parallel to each other and synchronously snapped into the snap-fit ​​connector and welded, so that the two contact wires form a circuit connection within the snap-fit ​​connector. This allows the capacitor and inductor connected by the two contact wires to form a circuit line with the third insert at this point, thereby ensuring the stability and reliability of the third circuit line between the internal circuit of the brush ring frame and the internal circuit of the sheath. At the same time, it replaces the structure of the contact spring sheet in the prior art, saving material costs.

[0024] 5) According to the integrated electrode brush holder ring and sheath structure described in 3), wherein:

[0025] The first and second springs are respectively provided with limiting holes. The upper side of the limiting hole is provided with a limiting card that is inclined. The limiting hole is for the bending block provided on the extension plate to pass through. The bending block is formed into a "7" shape. The top of the bending block abuts against the top of the limiting card.

[0026] In order to fix the first and second spring pieces on the extension plate, a limiting hole and a limiting card are used to allow the bending block on the extension plate to pass through the limiting hole. Then, the inner top of the bending block abuts against the top of the limiting card, thereby fixing the positions of the first and second spring pieces on the extension plate.

[0027] 6) According to the integrated electrode brush holder ring and sheath structure described in 5), wherein:

[0028] The second spring has an arc-shaped segment located between the limiting hole and the second insertion hole, and the arc-shaped segment covers the arc-shaped protruding surface of the extension plate.

[0029] To ensure that the second spring is firmly fixed on the extension plate, the second spring is designed to form an arc-shaped segment between the limiting hole and the second insertion hole, and the arc-shaped segment covers the arc-shaped protruding surface of the extension plate, so as to increase the contact area between the second spring and the extension plate, increase the friction, and thus firmly fix the second spring on the extension plate.

[0030] 7) According to the integrated electrode brush holder ring and sheath structure described in 3), wherein:

[0031] The lower contact end of the protector is a lower contact piece, on which a first wire is welded. The end of the first wire facing the second brush is connected to the second brush. A second limiting groove is provided at the bottom of the second brush, and the end of the second torsion spring is embedded in the second limiting groove. The second torsion spring is sleeved in the second torsion spring column inside the brush holder ring housing.

[0032] In the above technical solution, the protector, the second brush, the capacitor, and the second plug form the second circuit line. The upper contact of the protector is spot-welded to the plug of the second plug and the second wire, respectively. The first wire welded to the lower contact of the protector is connected to the second brush. In order to support and fix the second brush, a second limiting groove is provided at the bottom of the second brush for the end of the second torsion spring to be embedded. The second torsion spring is sleeved on the second torsion spring post. The torsion of the second torsion spring is used to firmly support the second brush and maintain the stability of the second brush.

[0033] 8) According to the integrated electrode brush holder ring and sheath structure described in 1), wherein:

[0034] The brush holder ring housing is provided with a first torsion spring post, and a first torsion spring is sleeved on the first torsion spring post. A first limiting groove is provided at the bottom of the first brush, and the end of the first torsion spring facing the first brush is embedded in the first limiting groove.

[0035] In order to support and fix the first brush, a first limiting groove is provided at the bottom of the first brush for the end of the first torsion spring to be embedded, and the first torsion spring is sleeved on the first torsion spring post. The first brush is stably supported by the torsion of the first torsion spring, thus maintaining the stability of the first brush.

[0036] 9) According to the integrated electrode brush holder ring and sheath structure described in 8), wherein:

[0037] The brush holder ring housing is further provided with an annular housing in the form of a semi-circular ring. The annular housing has a bottom hole for the first brush to pass through and a side hole for the second brush to pass through on its annular surface. The first torsion spring post and the second torsion spring post are both arranged inside the annular housing.

[0038] The annular housing with a semi-circular structure designed in this utility model is easy to assemble into a motor and is simple to operate. At the same time, the bottom hole and side hole of the annular housing are designed to cooperate with the first torsion spring column and the second torsion spring column respectively to achieve stable fixation of the first brush and the second brush and maintain the reliability of the assembly connection.

[0039] 10) According to the integrated electrode brush holder ring and sheath structure described in 1), wherein:

[0040] The sheath housing has a connecting groove, into which the first, second, and third inserts are arranged side-by-side. The connecting groove enables connection to external devices, allowing the first, second, and third inserts to be oriented for connection.

[0041] Compared with the prior art, this utility model also has the following technical effects:

[0042] 1. This utility model injection molds the brush holder ring housing and the protective sleeve housing into an integrated structure, which simplifies the production line. Only the integrated brush holder ring housing and the protective sleeve housing need to be injection molded, which improves production efficiency and reduces production time and costs.

[0043] 2. The contact spring sheet in the existing technology is replaced by the first insert, the second insert, and the third insert, which reduces the cost of raw materials, and at the same time reduces the cost of producing parts and the labor cost of installing parts.

[0044] 3. The internal circuit of the brush holder ring housing and the internal circuit of the sheath are connected to form an integrated structure, replacing the separate structure in the prior art. Therefore, the circuit connection of this utility model is more stable and reliable, thereby improving the performance of the motor. Attached Figure Description

[0045] Figure 1 This is a schematic diagram of the integrated electrode brush holder ring and sheath structure of this utility model from the front view.

[0046] Figure 2This is a bottom view schematic diagram of the integrated electrode brush holder ring and sheath structure of this utility model.

[0047] Figure 3 This is a front-view circuit connection diagram of the integrated electrode brush holder ring and sheath structure of this utility model;

[0048] Figure 4 This is a circuit connection diagram viewed from below in the integrated electrode brush holder ring and sheath structure of this utility model. Detailed Implementation

[0049] The following detailed description illustrates the specific implementation method:

[0050] The reference numerals in the accompanying drawings include: sheath housing 1, brush holder ring housing 2, extension plate 3, first spring piece 4, second spring piece 5, arc-shaped segment 6, bending block 7, protruding head 8, snap connector 9, contact wire 10, capacitor 11, inductor 12, first torsion spring post 13, first brush 14, ring housing 15, second torsion spring post 16, second torsion spring 17, second brush 18, connecting groove 19, limiting card 20, first insert 21, second insert 22, third insert 23, connector 24, protector 25, first torsion spring 26, first wire 27, upper contact piece 28, second wire 29, lower contact piece 30.

[0051] See the example. Figures 1 to 4 As shown, the integrated electrode brush holder ring and sheath structure in this embodiment includes a brush holder ring housing 2 and a sheath housing 1. The brush holder ring housing 2 and the sheath housing 1 are integrally injection molded. The brush holder ring housing 2 contains a first brush 14, a second brush 18, and a first spring 4. The sheath housing 1 contains a first insert 21, a second insert 22, and a third insert 23 extending downward along the length of the brush holder ring housing 2. The sheath housing 1 has a connecting groove 19, and the first insert 21, the second insert 22, and the third insert 23 are arranged side by side and extend into the connecting groove 19. The connecting groove 19 is used to connect with external devices, allowing the first insert 21, the second insert 22, and the third insert 23 to be oriented.

[0052] The brush holder ring housing 2 contains a first torsion spring post 13, on which a first torsion spring 26 is fitted. A first limiting groove is formed at the bottom of the first brush 14, and the end of the first torsion spring 26 facing the first brush 14 is embedded in the first limiting groove. To support and fix the first brush 14, the first limiting groove at the bottom of the first brush 14 is used for the end of the first torsion spring 26 to be embedded, and the first torsion spring 26 is fitted onto the first torsion spring post 13. The torsion force of the first torsion spring 26 thus firmly supports the first brush 14, maintaining its stability.

[0053] In addition, the brush holder ring housing 2 is also provided with an annular housing in the form of a semi-circular ring. The annular housing has a bottom hole for the first brush 14 to pass through and a side hole for the second brush 18 to pass through. The first torsion spring post 13 and the second torsion spring post 16 are both arranged in the annular housing.

[0054] The designed semi-circular ring structure of the annular housing facilitates assembly into the motor and is easy to operate. At the same time, the bottom hole and side hole of the annular housing are designed to cooperate with the first torsion spring post 13 and the second torsion spring post 16 respectively to achieve stable fixation of the first brush 14 and the second brush 18 and maintain the reliability of the assembly connection.

[0055] See Figure 3 and Figure 4 As shown, in this embodiment, the first insert 21 extends towards the first spring 4 from the end near the brush holder ring housing 2 and is welded to the first spring 4 to form a first circuit line. The second insert 22 extends towards the inside of the brush holder ring housing 2 and cooperates with the second brush 18 to form a second circuit line. The third insert 23 extends towards the inside of the brush holder ring housing 2 and cooperates with the first brush 14 to form a third circuit line. The internal circuit of the brush holder ring and the internal circuit of the sheath are connected through the first circuit line, the second circuit line and the third circuit line to form an integrated structure.

[0056] By injection molding the brush holder ring housing 2 and the sheath housing 1 into a single structure, it is no longer necessary to produce the brush holder ring housing 2 and the sheath housing 1 separately. Instead, they can be directly injection molded into a single structure, thereby reducing production time costs and improving production efficiency.

[0057] Furthermore, the contact spring sheet in the prior art is eliminated, and the plug pieces in the plug sheath of the prior art are designed as a first insert 21, a second insert 22, and a third insert 23 extending toward the brush holder ring housing 2. Therefore, compared with the prior art, this design eliminates the need to produce the contact spring sheet and the plug piece separately, reducing the cost of producing parts and the labor cost of installing parts.

[0058] Meanwhile, the designed first insert 21, second insert 22, and third insert 23 each extend along the length of the brush holder ring housing 2 and bend downwards to form an inverted L-shaped structure. This connects the first insert 21 inside the sheath housing 1 to the first circuit line inside the brush holder ring housing 2, the second insert 22 inside the sheath housing 1 to the second circuit line inside the brush holder ring housing 2, and the third insert 23 inside the sheath housing 1 to the third circuit line inside the brush holder ring housing 2. Therefore, the internal circuit of the brush holder ring and the internal circuit of the sheath are connected through the first, second, and third circuit lines to form an integrated structure, thereby ensuring the stability and reliability of the connection between the internal circuit of the brush holder ring and the internal circuit of the sheath, and thus improving the performance of the motor.

[0059] Specifically, see Figure 1 , Figure 3 and Figure 4 As shown, in this embodiment, there is an extension plate 3 extending horizontally outward between the brush holder ring housing 2 and the sheath housing 1. The first spring piece 4 is snapped into the extension plate 3. The end of the first spring piece 4 facing the first insert 21 is provided with a first insertion hole. The end of the first insert 21 facing the first spring piece 4 is provided with a protrusion 8 that can be inserted into the first insertion hole. The protrusion 8 is fixed in the first insertion hole by welding.

[0060] In this embodiment, the first circuit consists of a first spring plate 4 and a first insert plate 21, which replace the contact spring plate in the prior art, saving material costs. At the same time, the protrusion 8 of the first insert plate 21 is inserted into the first insertion hole of the first spring plate 4 and the two are firmly connected by welding. This ensures the stability and reliability of the first circuit between the internal circuit of the brush ring frame and the internal circuit of the sheath.

[0061] In addition, a second spring 5 parallel to the first spring 4 is snapped onto the extension plate 3. The end of the second spring 5 near the first socket is provided with a second socket. The end of the second insert 22 facing the second spring 5 is provided with a connector 24 that can be inserted into the second socket. The second socket also has an upper contact piece 28 and a second wire 29 welded to the connector 24. The upper contact piece 28 is the upper contact end of the protector 25, and the second wire 29 is the first terminal of the capacitor 11. The protector 25, the capacitor 11 and the second brush 18 together form a second circuit line.

[0062] When forming the second circuit between the internal circuit of the brush ring frame and the internal circuit of the sheath into an integrated structure, a point contact transmission method is adopted. The upper contact piece 28 of the protector 25, the second wire 29 of the capacitor 11, and the plug 24 of the second plug piece 22 are simultaneously locked in place by the second socket at the end of the second spring piece 5. This allows the upper contact piece 28, the second wire 29, and the plug 24 to be attached and welded together to form an integrated structure. This ensures the stability and reliability of the second circuit between the internal circuit of the brush ring frame and the internal circuit of the sheath. At the same time, it replaces the existing contact spring sheet structure, saving material costs.

[0063] Limiting holes are respectively provided on the first spring plate 4 and the second spring plate 5. A limiting card 20 is provided on the upper side of the limiting hole. The limiting hole allows the bending block 7 provided on the extension plate 3 to pass through. The bending block 7 forms a "7" shape. The top of the inner part of the bending block 7 abuts against the top of the limiting card 20.

[0064] In order to fix the first spring piece 4 and the second spring piece 5 on the extension plate 3, the limiting hole and the limiting card 20 are used to allow the bending block 7 on the extension plate 3 to pass through the limiting hole, and then the inner top of the bending block 7 abuts against the top of the limiting card 20 so that the positions of the first spring piece 4 and the second spring piece 5 are fixed on the extension plate 3, thereby fixing the positions of the first spring piece 4 and the second spring piece 5.

[0065] The second spring 5 has an arc-shaped segment 6, which is located between the limiting hole and the second insertion hole, and the arc-shaped segment 6 covers the arc-shaped protruding surface on the extension plate 3.

[0066] In order to ensure that the second spring piece 5 is firmly fixed on the extension plate 3, the second spring piece 5 is designed to form an arc-shaped segment 6 between the limiting hole and the second insertion hole, and the arc-shaped segment 6 covers the arc-shaped protruding surface of the extension plate 3, so as to increase the contact area between the second spring piece 5 and the extension plate 3, increase the friction, and thus firmly fix the second spring piece 5 on the extension plate 3.

[0067] The lower contact end of the protector 25 is a lower contact piece 30. A first wire 27 is welded on the lower contact piece 30. The end of the first wire 27 facing the second brush 18 is connected to the second brush 18. A second limiting groove is provided at the bottom of the second brush 18. The end of the second torsion spring 17 is embedded in the second limiting groove. The second torsion spring 17 is sleeved in the second torsion spring post 16 inside the brush holder ring housing 2.

[0068] In the above technical solution, the protector 25, the second brush 18, the capacitor 11, and the second plug 22 form a second circuit line. The upper contact 28 of the protector 25 is spot-welded to the plug 24 and the second wire 29 of the second plug 22, respectively. The first wire 27 welded to the lower contact 30 of the protector 25 is connected to the second brush 18. In order to support and fix the second brush 18, a second limiting groove is provided at the bottom of the second brush 18 for the end of the second torsion spring 17 to be embedded. The second torsion spring 17 is sleeved on the second torsion spring post 16. The torsion of the second torsion spring 17 is used to stably support the second brush 18 and maintain the stability of the second brush 18.

[0069] The third circuit also includes two contact wires 10, which are parallel to each other and synchronously snapped into the snap connector 9. The snap connector 9 is located at the end of the third insert 23 extending toward the first spring 4. The snap connector 9 has snap holes that allow the ends of the two contact wires 10 to be inserted, and the two contact wires 10 are fixed in the snap holes by welding. One of the two contact wires 10 is connected to the capacitor 11, and the other contact wire is connected to the inductor 12. The capacitor 11 and the inductor 12 together form the third circuit with the first brush 14.

[0070] The third circuit line in this embodiment includes a capacitor 11, an inductor 12, and a first brush 14. When the third circuit line between the internal current of the brush ring frame and the internal circuit of the sheath is integrated into a single structure, a snap-fit ​​welding transmission method is adopted. The two contact wires 10 are snap-fit ​​welded using the snap-fit ​​holes on the snap-fit ​​connector 9. At the same time, the two contact wires 10 are designed to be parallel to each other and synchronously snapped into the snap-fit ​​connector 9 and welded, so that the two contact wires 10 form a circuit connection within the snap-fit ​​connector 9. The capacitor 11 and the inductor 12 connected to the two contact wires 10 respectively form a circuit line with the third insert 23 at this point, thereby ensuring the stability and reliability of the third circuit line between the internal circuit of the brush ring frame and the internal circuit of the sheath. At the same time, it replaces the structure of the contact spring sheet in the prior art, saving material costs.

[0071] The above are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. An integrated electrode brush holder ring and shroud structure, characterized by, The brush holder ring shell and the sheath shell are integrally formed, and the internal circuit of the brush holder ring shell and the internal circuit of the sheath shell form an integrated structure. The brush holder ring shell has a first brush, a second brush and a first elastic sheet, and the sheath shell has a first insert sheet, a second insert sheet and a third insert sheet extending along the length direction of the brush holder ring shell and being bent downward; the first insert sheet extends toward the first elastic sheet near the end of the brush holder ring shell and is welded with the first elastic sheet to form a first circuit line; the second insert sheet extends into the brush holder ring shell and cooperates with the second brush to form a second circuit line; and the third insert sheet extends into the brush holder ring shell and cooperates with the first brush to form a third circuit line, so that the internal circuit of the brush holder ring and the internal circuit of the sheath are connected to form an integrated structure through the first circuit line, the second circuit line and the third circuit line.

2. The one-piece electrode brush holder ring and shroud structure of claim 1, wherein: The brush holder ring shell and the sheath shell have an extension plate extending horizontally and outward, and the first elastic sheet is clamped on the extension plate; a first insertion hole is formed in the end of the first elastic sheet facing the first insert sheet; and a protruding head capable of being inserted into the first insertion hole is arranged on the end of the first insert sheet facing the first elastic sheet, and the protruding head is fixed in the first insertion hole by welding.

3. The one-piece electrode brush holder ring and shroud structure of claim 2, wherein: A second elastic sheet parallel to the first elastic sheet is also clamped on the extension plate; a second insertion hole is formed in the end of the second elastic sheet near the first insertion hole; an insertion head capable of being inserted into the second insertion hole is arranged on the end of the second insert sheet facing the second elastic sheet; and an upper contact sheet and a second lead wire are welded with the insertion head in the second insertion hole; the upper contact sheet is an upper contact end of a protector; and the second lead wire is a first terminal of a capacitor, which cooperates with the second brush to form a second circuit line.

4. The one-piece electrode brush holder ring and shroud structure of claim 1, wherein: The second elastic sheet also has an arc-shaped segment, which is located between the limiting hole and the second insertion hole and covers an arc-shaped protruding surface on the extension plate.

5. The one-piece electrode brush holder ring and shroud structure of claim 3, wherein: The lower contact end of the protector is a lower contact sheet, a first lead wire is welded on the lower contact sheet, the end of the first lead wire facing the second brush is connected with the second brush, a second limiting groove is formed in the bottom of the second brush, the end of a second torsion spring is embedded in the second limiting groove, and the second torsion spring is sleeved on a second torsion spring column in the brush holder ring shell.

6. The one-piece electrode brush holder ring and shroud structure of claim 5, wherein: ​ 7. The one-piece electrode brush holder ring and shroud structure of claim 3, wherein: ​ 8. The one-piece electrode brush holder ring and shroud structure of claim 4, wherein: The brush holder ring shell is internally provided with a first torsion spring column, a first torsion spring is sleeved on the first torsion spring column, a first limiting slot is formed in the bottom of the first brush, and the end of the first torsion spring towards the first brush is embedded into the first limiting slot.

9. The integral electrode brush holder ring and shroud structure of claim 8, wherein: The brush holder ring shell is also internally provided with a ring shell in a semi-circular ring structure, a bottom hole for the first brush to pass through and a side hole for the second brush to pass through are formed on the annular surface of the ring shell, and the first torsion spring column and the second torsion spring column are both arranged in the ring shell.

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