A carbon brush transfer tray

Abstract

The application relates to a carbon brush transfer tray, belonging to the field of special equipment for transferring or fixing the position of combined molds, which comprises a tray body, a plurality of containing grooves for containing carbon brushes are uniformly arranged on the upper surface of the tray body, the containing grooves are arranged in a shape allowing the carbon brushes to be inserted in the containing grooves in a vertical posture; and at least one grounding terminal for grounding flow is arranged on the bottom of the tray body; wherein the tray body further comprises a conductive rubber layer for guiding the static electricity of the carbon brushes, the conductive rubber layer is arranged between the containing grooves and the grounding terminal, the conductive rubber layer extends into the groove space of each containing groove, and the grounding terminal is connected with the conductive rubber layer to form a conductive connection. The conductive rubber layer is designed, the conductive rubber layer adopts a flexible material such as carbon black filled silica gel, the conductive rubber layer realizes the combination of softness and conductivity, cannot cause grinding loss to the carbon brushes and can also guide the static electricity on the surface of the carbon brushes.

Description

Technical Field

[0001] This application belongs to the field of specialized equipment for handling or fixing the position of combined molds, and specifically relates to a carbon brush transfer tray. Background Technology

[0002] Electric brushes are sliding contact components in motors such as generators and electric motors that conduct current. They are usually made of graphite or carbon materials and are used to transfer electrical energy between rotating and stationary parts. Existing graphite carbon brushes or graphite-doped resin-based brushes are prone to accumulating static electricity. During daily maintenance and use, the accumulated static electricity on the brushes will attract particles from the air, affecting their service life. They also lack anti-static protection. Since the Mohs hardness of carbon brushes is generally lower than that of dust solid molecules, the dust adsorbed on the carbon brushes will affect the physical properties of the brushes themselves and affect their contact with the commutator / slip ring. With the increasing demands for equipment precision in modern society, improving the anti-static ability of brushes and enhancing surface cleanliness has become a new requirement in the industry and a corresponding new technical challenge.

[0003] Chinese patent CN 218828329 U discloses a protective device for the transfer of a conductive slip ring brush assembly. The technical solution comprises a bottom cover, a body, a rotating shaft, a spring, steel balls, and a pressure cap. The body has a brush bristle cavity on its side wall, and the bottom cover is threaded to the rear boss of the body. The rotating shaft is placed inside the brush bristle cavity, with its front end extending out of the body and having external threads that engage with the internal threads of the pressure cap for fixation. The spring is sleeved on the rotating shaft, with one end fixed to the rotating shaft wing plate and the other end abutting against the step of the rotating shaft hole. The pressure cap consists of a rotating handle and a front cover. The back of the front cover has four steel ball grooves that engage with the outwardly protruding steel balls arranged in a cross pattern on the body for positioning. The upper and lower parts of the body have brush slots, and the front cover has symmetrically slotted sections for the brush bristles to pass through.

[0004] The aforementioned prior art has the following drawbacks:

[0005] A protective device was constructed to house the brushes; essentially, it is a protective housing.

[0006] The brush is inserted into the corresponding slot and enclosed by the shell. However, there is a lack of effective means to conduct static electricity, making it impossible to apply a brush production process with full-process electrostatic protection. After production, the static electricity of the brush itself cannot be effectively conducted, which poses a risk of contaminating the brush surface during subsequent use.

[0007] 2. The protection device disclosed in the prior art can only protect a single brush, occupies a large space, and consumes a lot of manpower and resources during transportation.

[0008] As can be seen from the above disclosure, the existing technology lacks a solution that can provide effective protection while also taking into account the electrostatic discharge capability. There is a lack of effective technical solutions for electrostatic protection in the entire production process, especially in the transportation link. This may result in the brush having static electricity on its surface when it is taken out for assembly after being sold, which does not meet the factory and assembly standards. Utility Model Content

[0009] To address the issue of dust accumulation on the surface of carbon brushes, this application provides a carbon brush transfer tray that focuses on protecting the carbon brush structure and dissipating static electricity from the tray surface during the transfer process. By printing a conductive layer and using grounding posts to guide current outward, it can be connected to a grounding chain or a node on a tooling table specifically designed for static electricity discharge.

[0010] The carbon brush transfer tray provided in this application adopts the following technical solution:

[0011] A carbon brush transfer tray includes a tray body, with a plurality of receiving slots evenly distributed on the upper surface of the tray body for accommodating carbon brushes. The receiving slots are configured to allow the carbon brushes to be inserted vertically into the slots.

[0012] At least one grounding terminal is provided for grounding current conduction and extends through the bottom of the tray body.

[0013] The tray body also includes a conductive rubber layer for discharging static electricity from the carbon brush. The conductive rubber layer is located between the receiving groove and the grounding terminal. The conductive rubber layer extends into the space inside each receiving groove. The grounding terminal is connected to the conductive rubber layer to form a conductive connection.

[0014] Furthermore, the conductive rubber layer includes a conductive base plate portion formed at the bottom of the receiving groove and a conductive mesh portion for guiding flow. The conductive mesh portion is connected to each conductive base plate portion, and the conductive rubber layer is electrically connected to the grounding terminal.

[0015] Furthermore, the conductive mesh section includes multiple conductive trunks that extend in a straight line and are arranged in parallel. The conductive trunks are arranged alternately with each row of receiving slots. A conductive branch extends from each receiving slot. Each row of conductive branch is connected to the conductive trunk on the corresponding side. Both ends of the conductive trunk are connected to a grounding trunk, which is connected to the grounding terminal.

[0016] Furthermore, the conductive branch is corner-shaped, and the corner angle of the conductive branch is greater than 60 degrees.

[0017] Furthermore, the conductive base plate is also connected to a conductive side plate that extends vertically along the side wall of the receiving groove. The conductive side plate, the inner wall of the receiving groove, and the conductive base plate together form a space that just allows the carbon brush to be inserted.

[0018] Furthermore, the tray body includes an outer shell, a support portion is fitted in a cavity within the outer shell, the receiving groove is opened on the upper surface of the support portion, and the conductive rubber layer is located below the support portion and extends horizontally along the inner wall of the outer shell.

[0019] Furthermore, the grounding terminal is a metal terminal block, and there are four grounding terminals, which are respectively located near the top corner of the tray body. One end of the grounding terminal is connected to the conductive rubber layer, and the other end of the grounding terminal extends to the bottom of the tray body.

[0020] This application includes at least one of the following beneficial technical effects:

[0021] 1. The provided tray structure utilizes a conductive rubber layer for conductivity.

[0022] It can guide the flow directly outward from the receiving tank, so static electricity can be discharged when the carbon brush is placed in the tray and removed from the tray, while protecting the shape of the carbon brush and improving the static protection capability of the carbon brush.

[0023] 2. The conductive rubber layer is designed using a flexible material such as carbon black-filled silicone, which achieves both flexibility and conductivity, without causing wear and tear on the carbon brush, while also dissipating static electricity on the carbon brush surface.

[0024] 3. The design is multi-level. The support part is made of plastic with a receiving groove, and the outer shell is also made of plastic. The conductive rubber layer is printed on the bottom surface of the cavity of the outer shell, which can ensure good support performance. The conductive base plate is located in the receiving groove to realize electrostatic conduction. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of a carbon brush transfer tray containing carbon brushes.

[0026] Figure 2 This is a top view of the carbon brush transfer tray and its internal conductive mesh section.

[0027] Figure 3 This is a schematic diagram of the overall structure of the carbon brush transfer tray.

[0028] Figure 4 This is a schematic diagram of the connection structure between the conductive bottom plate and the conductive side plate and the conductive mesh inside the carbon brush transfer tray.

[0029] Figure 5 yes Figure 4 Enlarged view of point C in the middle.

[0030] Figure 6 This is a side view of the carbon brush transfer tray.

[0031] Figure 7 This is a top-down view of the overall structure of the carbon brush transfer tray.

[0032] Figure 8 This is a diagram showing the overall connection structure between the carbon brush and the conductive base plate, conductive side plate, and conductive mesh.

[0033] Figure 9 yes Figure 8 Enlarged view of point B.

[0034] Figure 10 This is an axial view showing the overall connection between the carbon brush and the conductive base plate, conductive side plate, and conductive mesh.

[0035] Figure 11 yes Figure 10 Enlarged view of point A in the middle.

[0036] Explanation of reference numerals in the attached drawings: 1. Carbon brush; 2. Groove; 3. Conductive base plate; 32. Conductive side plate; 4. Support; 41. Receiving groove; 5. Conductive rubber layer; 51. Conductive branch; 52. Conductive main circuit; 511. Corner; 512. Connection position; 53. Grounding main circuit; 7. Outer shell; 71. Edge groove; 8. Handle; 9. Grounding terminal. Detailed Implementation

[0037] The following is in conjunction with the appendix Figure 1-11 This application will be described in further detail.

[0038] Example 1

[0039] This application discloses a carbon brush transfer tray, as shown in the embodiments below. Figure 1-6 It includes the tray body, carbon brush 1, and conductive rubber layer 5;

[0040] The implementation principle of Example 1 is as follows:

[0041] A carbon brush transfer tray is provided, comprising a tray body, with a plurality of receiving grooves 41 evenly distributed on the upper surface of the tray body for accommodating carbon brushes. The receiving grooves 41 are configured to allow the carbon brushes to be inserted vertically into the receiving grooves. The shape of the receiving grooves 41 is preferably rectangular, but the receiving grooves 41 can also be columnar or triangular, but are preferably rectangular grooves that match the shape of the carbon brushes. A grounding terminal for grounding is connected to the bottom of the tray body. The grounding terminal is a metal column, and there is at least one. The grounding terminal protrudes from the bottom of the tray body, and the bottom end of the grounding terminal is threaded.

[0042] To facilitate current conduction, the tray body also includes a conductive rubber layer for discharging static electricity from the carbon brush. The tray body includes an outer shell and a support portion fitted into a groove 2 within the outer shell. The outer shell 7 can be made of plastic and has a basin-shaped structure with a groove 2 in the center. The support portion 4 is fitted into the groove 2. The support portion 4 is made of materials such as plastic. Figure 3 As shown, the plastic housing has a receiving groove 41. The receiving groove 41 is located on the support part 4 and has an opening at the top. Below the opening is a cylindrical body forming a rectangular slide. The carbon brush can slide down along the receiving groove 41. The support part can be fixedly fitted into the groove 2. The support part 4 can be fitted into the groove 2 in a form-fitting manner. The receiving groove 41 is opened on the upper surface of the support part. The edge of the support part 4 can be fixed in the receiving groove 41. The conductive bottom plate part 3 forms the bottom of the receiving groove 41. The conductive side plate part 32 will be attached to the inner wall of the receiving groove 41. The top of the conductive side plate part 32 will extend beyond the upper edge of the receiving groove 41.

[0043] The conductive rubber layer 5 is located between the receiving groove 41 and the grounding terminal 9. The conductive rubber layer 5 is formed on the bottom wall of the groove 2. The conductive rubber layer 5 can be directly printed or coated. The conductive rubber layer 5 extends into the groove space of each receiving groove 41. The grounding terminal 9 is connected to the conductive rubber layer 5 to form a conductive connection.

[0044] As a preferred option, please refer to the appendix. Figure 2 and attached Figure 4-5 As shown, the conductive rubber layer 5 has the following shape and structure: the conductive rubber layer 5 includes a conductive base plate portion 3 formed at the bottom of the receiving groove 41 and a conductive mesh portion for guiding current. The conductive mesh portion is a flexible interlayer in the shape of a mesh. The conductive mesh portion is connected to each conductive base plate portion 3. The conductive rubber layer 5 is electrically connected to the grounding terminal 9.

[0045] The main body of the tray is rectangular. The conductive grid part includes a conductive trunk 52 located on one side of each straight-lined receiving groove 41. The conductive trunk and each row of receiving grooves (41) are arranged alternately. That is, there must be a row of receiving grooves 41 between the conductive trunk 52 extending in a straight line along the length or width direction and the adjacent conductive trunk 52. A conductive branch 51 extends out from each receiving groove 41. Each row of conductive branch 51 is connected to the corresponding side of the conductive trunk 52. Each row of conductive branch 51 is connected to the same conductive trunk 52. The conductive branch 51 extends out from the receiving groove position parallel to the conductive trunk 52, forming a corner 511 that turns to the direction of the conductive trunk 52 and connects to the conductive trunk 52. The connection position 512 of the conductive branch 51 and the conductive trunk 52 is T-shaped and connected as one unit. The corner angle of the conductive branch 51 is greater than 60 degrees.

[0046] like Figure 6 As shown, grounding trunks 53 are provided on both sides perpendicular to the conductive trunk 52. Both ends of the conductive trunk 52 are connected to the grounding trunk 53, and the grounding trunk 53 is connected to the grounding terminal 9.

[0047] The conductive rubber layer 5 is made of carbon black-filled silicone material. That is, the conductive branch 51, the conductive trunk 52 and the grounding trunk 53 are all made of carbon black-filled silicone material. The blank areas of the conductive grid are filled with conventional silicone to keep the plane flat. The conductive rubber layer is located below the support and extends horizontally along the inner wall of the outer shell. The conductive rubber layer 5 is integrally formed to cover and connect to the bottom surface of the groove 2.

[0048] The implementation principle of Example 1 is as follows: when there is static electricity on the surface of the carbon brush, after the carbon brush is inserted into the receiving groove 41, the static electricity on its surface will be conducted to the grounding terminal 9 through the conductive branch, the conductive trunk 52 and the grounding trunk 53. The grounding terminal 9 is generally connected to the grounding interface reserved on the workstation for eliminating static electricity or directly connected to the grounding chain perpendicular to the ground to conduct the static electricity. The grounding interface is generally connected to the grounding pin buried below the ground.

[0049] Example 2

[0050] This application requests disclosure of a carbon brush transfer tray, as per the embodiments described herein. Figure 1-6 This includes the content of Embodiment 1, but differs from Embodiment 1 in that: the tray body includes an outer shell and a support portion fitted into a groove 2 within the outer shell; the outer shell 7 can be made of plastic and has a basin-shaped structure with a groove 2 in the center; the support portion 4 is made of silicone or a polymer material and fills the groove 2; the support portion 4 is made of silicone or a polymer material. Figure 3 As shown, the plastic shell has a groove, the support part can be solidified in the groove 2, the receiving groove 41 is opened at the upper surface of the support part, the conductive rubber layer 5 can be formed on the bottom of the groove 2, the conductive rubber layer 5 is printed into the groove 2 first, and then silicone or polymer material is injected and solidified. A mold is pre-embedded in the bottom of the groove so that the receiving groove 41 is formed on the support part.

[0051] Through the above structural design, the support part 4 has a fast forming speed, a simple overall mechanism, and a fast real-time speed. It can be quickly formed and prepared, and the overall structure is stable with good insulation effect.

[0052] Example 3,

[0053] This application requests disclosure of a carbon brush transfer tray, as per the embodiments described herein. Figure 1-11 It includes the content of Example 1, but differs from Example 1 in that:

[0054] To ensure good conductivity of the conductive base plate 3, the shape and position of the conductive base plate can be precisely formed at the bottom of the receiving groove 41. The conductive base plate 3 is also connected to a conductive side plate 32 that extends vertically along the side wall of the receiving groove 41. The conductive base plate and the conductive side plate 32 form an L-shape. The conductive side plate 32, the inner wall of the receiving groove 41, and the conductive base plate 3 form a space that just allows the carbon brush to be inserted. Both the conductive base plate 3 and the conductive side plate 32 are made of carbon black filled silicone, which has good conductivity and flexibility. Its essence is conductive colloid, so it can quickly conduct static electricity. In addition, it matches the shape of the carbon brush, and the overall shape fits tightly, with a dense structure and high efficiency.

[0055] like Figure 6 As shown, the tray body includes an outer shell 7, with a support part 4 installed in a cavity within the outer shell. A receiving groove 41 is formed on the upper surface of the support part 4. The conductive rubber layer 5 extends horizontally along the inner wall of the outer shell 7 below the support part 4. The support part 4 is used to provide storage space for carbon brushes by forming multiple receiving grooves 41. Guide grooves are formed on both sides of the outer shell to facilitate insertion and connection of the outer shell into the frame. The outer shells are vertically distributed parallel to each other within the frame. This arrangement saves floor space.

[0056] By modifying the shape and structure of the outer casing, the overall structure is made more streamlined. The carbon brushes are integrated and centrally stored inside the casing via a support unit 4. The carbon brushes conduct electricity outwards through the conductive rubber layer and the grounding terminal 9. The grounding terminal 9 can be directly connected to a grounding chain hanging to the ground, or it can be connected to an electrostatic discharge terminal already connected to a buried ground wire. Regardless of the method, static electricity can be released outwards through the grounding terminal 9. It should be noted that the grounding terminal 9 is a metal terminal. To ensure electrostatic discharge capability, four grounding terminals 9 are used, each located near the top corner of the tray body. One end of each grounding terminal 9 is connected to the conductive rubber layer 5, and the other end extends to the bottom of the tray body. During the casing molding process, the grounding terminals are pre-embedded in their corresponding positions to fix them to the casing.

Claims

1. A carbon brush transfer tray, characterized in that, The tray body includes a plurality of receiving grooves (41) evenly distributed on the upper surface of the tray body for accommodating carbon brushes (1), the receiving grooves (41) being configured to allow the carbon brushes (1) to be inserted vertically into the receiving grooves (41); as well as At least one grounding terminal (9) for grounding current conduction extends through the bottom of the tray body; The tray body also includes a conductive rubber layer (5) for discharging static electricity from the carbon brush. The conductive rubber layer (5) is located between the receiving groove (41) and the grounding terminal (9). The conductive rubber layer (5) extends into the groove space of each receiving groove (41). The grounding terminal (9) is connected to the conductive rubber layer (5) to form a conductive connection.

2. A carbon brush transfer tray according to claim 1, characterized in that, The conductive rubber layer (5) includes a conductive base plate portion (3) formed at the bottom of the receiving groove (41) and a conductive mesh portion for guiding current. The conductive mesh portion is connected to each conductive base plate portion (3), and the conductive rubber layer (5) is electrically connected to the grounding terminal (9).

3. A carbon brush transfer tray according to claim 2, characterized in that, The conductive mesh section includes multiple conductive trunks (52) that extend in a straight line and are arranged in parallel. The conductive trunks are arranged alternately with each row of receiving grooves (41). A conductive branch (51) extends out from each receiving groove (41). Each row of conductive branch (51) is connected to the conductive trunk (52) on the corresponding side. Both ends of the conductive trunk (52) are connected to the grounding trunk (53). The grounding trunk (53) is connected to the grounding terminal (9).

4. A carbon brush transfer tray according to claim 3, characterized in that, The conductive branch (51) is corner-shaped, and the corner angle of the conductive branch (51) is greater than 60°.

5. A carbon brush transfer tray according to claim 2, characterized in that, The conductive base plate (3) is also connected to a conductive side plate (32) that extends vertically along the side wall of the receiving groove (41). The conductive side plate (32), the inner wall of the receiving groove (41), and the conductive base plate (3) form a space that allows the carbon brush to be inserted.

6. A carbon brush transfer tray according to claim 1, characterized in that, The tray body includes an outer shell (7), a support part (4) is installed in the cavity inside the outer shell, the receiving groove (41) is opened on the upper surface of the support part (4), and the conductive rubber layer (5) is located below the support part (4) and extends horizontally along the inner wall of the outer shell (7).

7. A carbon brush transfer tray according to claim 1, characterized in that, The grounding terminal (9) is a metal terminal block. There are four grounding terminals (9) and they are respectively located near the top corner of the tray body. One end of the grounding terminal (9) is connected to the conductive rubber layer (5), and the other end of the grounding terminal (9) extends to the bottom of the tray body.

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