A waterproof sealed copper bar connector and wiring assembly

By integrally injection molding the copper busbar body and the plastic body, and setting waterproof sealing rings, sealing bushings, and waterproof adhesive, the problem that existing copper busbar connections cannot meet waterproof and dustproof sealing requirements is solved, achieving a highly efficient waterproof sealing effect.

CN115663520BActive Publication Date: 2026-01-23DONGGUAN XINWEIXING ELECTRONICS CO LTD
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Patent Information

Application Number
CN202211443600.6
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-11-18
Publication Date
2026-01-23
Estimated Expiration
2042-11-18

AI Technical Summary

Technical Problem

The existing connection between copper busbars and electrical components is only covered by an insulating protective sleeve, which cannot meet the requirements for waterproof and dustproof sealing at the connection, and its performance is insufficient, especially in harsh environments.

Method used

The copper busbar is integrally injection molded onto the plastic body, and a waterproof sealing ring, sealing bushing, and waterproof adhesive are set to form a triple sealing structure, including a copper core, a first connector, and a second connector. The plastic body is provided with sealing grooves and reinforcing ribs to enhance the sealing effect.

Benefits of technology

It achieves a highly efficient waterproof seal at the copper busbar connection, making it suitable for harsh environments and improving the reliability and durability of the connection.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application relates to the field of electronic connectors and provides a waterproof sealed copper bar connector and a wiring assembly, which comprises a copper bar body and an integrally injection-molded plastic body, the plastic body is provided with opposite first and second end faces, one end of the copper bar body penetrates through the first end face, the other end of the copper bar body penetrates through the second end face, the plastic body is provided with a plurality of connecting holes with sealing bushings, the first end face is provided with a waterproof sealing ring, the plastic body is integrally formed with a first plastic sleeve sleeved on one end of the copper bar body on the side of the first end face, waterproof glue is arranged between the first plastic sleeve and the copper bar body, and the plastic body is integrally formed with a second plastic sleeve sleeved on the other end of the copper bar body on the side of the second end face. The waterproof sealed copper bar connector and the wiring assembly have the advantages that the plastic body is integrally injection-molded, the waterproof and dustproof effects are good, and the sealing performance is good.
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Description

Technical Field

[0001] This invention relates to the field of terminal blocks, and provides a waterproof and sealed copper busbar connector and wiring assembly. Background Technology

[0002] Copper busbars are high-current conductive products suitable for electrical engineering applications such as high and low voltage electrical appliances, switch contacts, power distribution equipment, and busbar trunking. They are also widely used in ultra-high current electrolytic smelting projects such as metal smelting, electroplating, and chemical caustic soda production. In circuits, they serve to transmit current and connect electrical equipment. Many electrical components need to be connected through copper busbars to form an electrical connection. However, the existing connection points between copper busbars and electrical components are only covered by insulating protective sleeves, which only provide insulation protection and cannot meet the waterproof and dustproof sealing requirements of the connection points. Moreover, many large power components need to operate in harsh environments for a long time, requiring even higher waterproof performance. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a waterproof and sealed copper busbar connector. The copper busbar body is integrally injection molded into a plastic body and is provided with a waterproof sealing ring, a sealing bushing and waterproof adhesive. The structure is tight and effectively meets the waterproof and sealing requirements of the copper busbar.

[0004] The technical solution of the present invention is: a waterproof and sealed copper busbar connector and wiring assembly, comprising a copper busbar body and an integrally injection-molded plastic body. The plastic body has a first end face and a second end face opposite to each other. One end of the copper busbar body is a first end protruding from the first end face, and the other end of the copper busbar body is a second end protruding from the second end face. The plastic body is provided with a connecting hole penetrating the first end face and the second end face. A sealing bushing is provided in the connecting hole. A waterproof sealing ring is provided on the first end face. The copper busbar body includes multiple copper busbar assemblies. Each copper busbar assembly includes a copper core, a first connector, and a second connector. The copper core is L-shaped and includes a base plate and a side plate. The first connector is riveted to the base plate, and the second connector is riveted to the side plate. The plastic body has a first plastic sleeve integrally molded on the first end face side that fits onto the side plate. A waterproof adhesive is provided between the first plastic sleeve and the side plate. The plastic body has a second plastic sleeve integrally molded on the second end face side that fits onto the first connector.

[0005] Optionally, the copper core is made of copper, the first connector has mounting holes for connecting other components or equipment, the opening of the mounting holes is oriented relative to the second end face, the bottom plate has a bottom plate hole at the riveting joint with the first connector, the second connector is a nut, and the side plate has a side plate hole at the riveting joint with the second connector.

[0006] The mounting hole extends from the second end face toward the first end face, and the end of the mounting hole near the first end face is conical. The outer periphery of the first connector has a positioning ring that fits tightly against the base plate.

[0007] Optionally, the first end face is provided with a plurality of first grooves, the first grooves being adjacent to the first plastic sleeve.

[0008] Optionally, the connecting hole includes a first connecting hole located between adjacent first plastic sleeves, and the connecting hole also includes a second connecting hole near the left and right ends of the plastic body.

[0009] Optionally, the first end face is provided with a first sealing groove surrounding the periphery of each of the first plastic sleeves, and the first end face is also provided with a second sealing groove surrounding the periphery of the first connecting hole, the second connecting hole being located outside the first sealing groove;

[0010] The waterproof sealing ring includes a first sealing ring installed at the first sealing groove, and a second sealing ring installed at the second sealing groove. The first sealing ring has a groove at one end opposite to the first end face to provide deformation space for the first sealing ring, and the second sealing ring has a groove at one end opposite to the first end face to provide deformation space for the second sealing ring.

[0011] Optionally, the plastic body has a spacer baffle formed on the second end face of the left and right sides of the base plate, and a plurality of first reinforcing ribs are provided between the outer side of the baffle and the second end face; the plastic body has a spacer sleeve formed on the second end face of the second end face around the first connecting hole, and a plurality of second reinforcing ribs are provided between the outer side of the spacer sleeve and the second end face.

[0012] Optionally, the side plate has multiple material discharge grooves near the bottom plate.

[0013] Optionally, the first plastic sleeve has an injection groove at one end opposite to the first end face, and the bottom of the injection groove extends into an isolation layer that fits onto the side plate, with the waterproof adhesive located inside the injection groove.

[0014] The present invention also provides a wiring assembly, the wiring assembly including a mounting panel, connectors and cables, and the wiring assembly further having the above-mentioned waterproof and sealed copper busbar connector.

[0015] The present invention provides a waterproof and sealed copper busbar connector and wiring assembly. The copper busbar body is integrally injection molded into a plastic body and is provided with a waterproof sealing ring, a sealing bushing and a waterproof adhesive. The triple sealing setting has a tight structure and effectively meets the waterproof and sealing requirements of the copper busbar. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a front view of a waterproof and sealed copper busbar connector provided in an embodiment of the present invention;

[0018] Figure 2 This is a top view of a waterproof and sealed copper busbar connector provided in an embodiment of the present invention;

[0019] Figure 3 This is a three-dimensional schematic diagram of a waterproof and sealed copper busbar connector provided in an embodiment of the present invention;

[0020] Figure 4 This is a three-dimensional cross-sectional view of a waterproof and sealed copper busbar connector provided in an embodiment of the present invention;

[0021] Figure 5 This is an exploded perspective view of a waterproof and sealed copper busbar connector provided in an embodiment of the present invention;

[0022] Figure 6 This is an exploded perspective view of a waterproof and sealed copper busbar connector provided in an embodiment of the present invention from another direction;

[0023] Figure 7 This is a front view of a waterproof and sealed copper busbar connector provided in an embodiment of the present invention, installed in the mounting position;

[0024] Figure 8 This is a rear view of a waterproof and sealed copper busbar connector installed at a mounting position, according to an embodiment of the present invention.

[0025] Figure 9 This is a top view of a waterproof and sealed copper busbar connector installed at a mounting position, according to an embodiment of the present invention.

[0026] Figure 10 This is a side view of a waterproof and sealed copper busbar connector installed in the mounting position, according to an embodiment of the present invention. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0028] It should be noted that when a component is referred to as "fixed to" or "set on" another component, it can be directly on the other component or may have an intervening component present. When a component is referred to as "connected to" another component, it can be directly connected to the other component or may have an intervening component present.

[0029] Furthermore, in embodiments of this invention, terms such as "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer" are used to indicate orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, or in a conventional placement or usage state. These terms are merely for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the structures, features, devices, or elements referred to must have a specific orientation or positional relationship, nor that they must be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0030] The various specific technical features and embodiments described in the detailed embodiments can be combined in any suitable manner without contradiction. For example, different implementation methods can be formed by combining different specific technical features / embodiments. In order to avoid unnecessary repetition, the various possible combinations of the various specific technical features / embodiments in this invention will not be described separately.

[0031] like Figures 1 to 6As shown in the figure, an embodiment of the present invention provides a waterproof and sealed copper busbar connector, including a copper busbar body 1 and an integrally injection-molded plastic body 2. The plastic body 2 has a first end face 21 and a second end face 22 facing each other. One end of the copper busbar body 1 is a first end 11 that extends through the first end face 21, and the other end of the copper busbar body 1 is a second end 12 that extends through the second end face 22. The first end 11 can be a connection end for connecting to other devices or components. The plastic body 2 is provided with a connection hole 2 that passes through the first end face 21 and the second end face 22. 3. The connector installs the plastic body 2 onto the mounting surface through the connection hole 23. A sealing bushing 3 is provided in the connection hole 23 for waterproofing and dustproofing. A waterproof sealing ring 4 is provided on the first end face 21 to enhance the waterproof sealing performance of the copper busbar connector. The copper busbar body 1 includes multiple copper busbar assemblies 13. Each copper busbar assembly 13 includes a copper core 131, a first connector 132, and a second connector 133. The copper core 131 is L-shaped and includes a base plate 1311 and a side plate 1312. The base plate 1311 and the side plate 1312 can be perpendicular. The copper core 131 can be formed by pressing copper plates. The first connector 132 is riveted to the base plate 1311, and the second connector 133 is riveted to the side plate 1312. The plastic body 2 has a first plastic sleeve 24 integrally formed on the first end face 21 side, which is fitted onto the side plate 1312. The end of the side plate 1312 (i.e., the first end 11) extends out of the first plastic sleeve 24. The second connector 133 is riveted to the part of the side plate 1312 that extends out of the first plastic sleeve 24. A waterproof adhesive 5 is provided between the first plastic sleeve 24 and the side plate 1312. The waterproof adhesive 5 is ring-shaped around the side plate 1312 and connects to the end of the first plastic sleeve 24. The plastic body 2 includes a second plastic sleeve 25 that is fitted (covers) the first connector 132. The end face of the front end of the first connector 132 can be flush with the second end face 22. The copper busbar body 1 is fixed to the integrally formed plastic body 2. The copper busbar body 1 and the plastic body 2 can be formed by inlay injection molding. The copper busbar connector is provided with a waterproof sealing ring 4, a sealing bushing 3 and a waterproof adhesive 5, which are triple waterproof sealing measures. The structure is simple and effectively meets the waterproof sealing requirements of the copper busbar, with high waterproof reliability.

[0032] Specifically, the copper core 131 can be made of pure copper, which has good conductivity, corrosion resistance, and ductility, making it suitable for manufacturing conductive devices; such as Figures 3 to 6As shown, the first connector 132 has a mounting hole 1320 for connecting other components or equipment (cables). The opening of the mounting hole 1320 is oriented relative to the second end face 22. The base plate 1311 and the first connector 132 are riveted together with a base plate hole 13110. The first connector 132 is riveted to the base plate 1311 through the base plate hole 13110. The second connector 133 is a nut (machined nut). The side plate 1312 and the second connector 133 are riveted together with a side plate hole 13120. The side plate hole 13120 communicates with the nut hole on the second connector 133, which facilitates the connection of other components or equipment. The structure is simple, easy to install, and highly practical.

[0033] Specifically, such as Figure 4 and Figure 6 As shown, the mounting hole 1320 extends from the second end face 22 toward the first end face 21. The end of the mounting hole 1320 near the first end face 21 is conical. The mounting hole 1320 can be formed by using a pointed drill bit. The outer periphery of the first connector 132 has a positioning ring 1321 that is tightly attached to one side of the base plate 1311. The riveting end of the first connector 132 is riveted to the other side of the base plate 1311. The positioning ring 1321 and the riveting end can limit the axial position between the first connector 132 and the base plate 1311, making the first connector 132 less prone to loosening.

[0034] Specifically, such as Figure 1 and Figure 5 As shown, the first end face 21 has multiple first grooves 210, which are adjacent to the first plastic sleeve 24. The first grooves 210 are used to make the thickness of the plastic body 2 similar in all places, avoiding defects caused by excessive local thickness, ensuring the consistency of overall strength, and effectively shortening the cooling or curing time of the plastic body 2, thereby improving injection molding productivity. The copper busbar body 1 passes through the plastic body 2, with its first end 11 and second end 12 respectively located on both sides of the plastic body 2.

[0035] Specifically, such as Figure 1 As shown, the connection hole 23 includes a first connection hole 231 located between adjacent first plastic sleeves 24, and the connection hole 23 also includes a second connection hole 232 near the left and right ends of the plastic body 2. The first connection hole 231 and the second connection hole 232 can be evenly arranged on the plastic body 2 to ensure that the copper busbar connector is evenly stressed and the installation is stable during installation.

[0036] Specifically, such as Figure 5As shown, the first end face 21 has a first sealing groove 211 surrounding the periphery of each of the first plastic sleeves 24. One first sealing groove 211 surrounds the periphery of the three first plastic sleeves 24. The first end face 21 also has a second sealing groove 212 surrounding the periphery of the first connecting hole 231. One second sealing groove 212 surrounds the periphery of one first connecting hole 231. The second connecting hole 232 is located outside the first sealing groove 211. The arrangement of the first sealing groove 211 and the second sealing groove 212 enhances the sealing performance.

[0037] like Figure 4 and Figure 5 As shown, the waterproof sealing ring 4 includes a first sealing ring 41 installed in the first sealing groove 211, and a second sealing ring 42 installed in the second sealing groove 212. The first sealing ring 41 has a groove 410 at one end opposite to the first end face 21 to provide deformation space for the first sealing ring 41. The groove 410 can be arranged in a ring on the top surface of the first sealing ring 41. The bottom surface of the first sealing ring 41 is seated at the bottom of the first sealing groove 211, and the top surface of the first sealing ring 41 can protrude from the first sealing groove 211. The second sealing ring 42 has a groove 410 at one end opposite the first end face 21, providing deformation space for the second sealing ring 42. The first sealing ring 41 can protrude from the first sealing groove 211, and the second sealing ring 42 can protrude from the second sealing groove 212. The protruding sealing rings ensure the contact area between the sealing rings and the sealing grooves. Simultaneously, the groove 410 facilitates the installation of the waterproof sealing ring 4. During installation, the compression required for sealing is achieved through the space avoidance provided by the groove 410, allowing the waterproof sealing ring 4 to fit more tightly against the bottom of the sealing groove, preventing it from easily falling off. Furthermore, the annular groove 410 has raised ribs on both sides of the first sealing ring 41. When the first sealing ring 41 is pressed against the mounting surface, the raised ribs deform, creating a certain negative pressure within the groove 410, generating a vacuum adsorption effect, which helps improve the reliability of the seal. The cross-section of the raised ribs can be triangular.

[0038] Specifically, such as Figure 3The plastic body 2 has insulating spacer baffles 26 formed on the left and right sides of the base plate 1311 on the second end face 22. Multiple first reinforcing ribs 261 are provided between the outer side of the spacer baffles 26 and the second end face 22. The plastic body 2 has insulating spacer sleeves 27 formed around the first connecting hole 231 on the second end face 22. Multiple second reinforcing ribs 271 are provided between the outer side of the spacer sleeves 27 and the second end face 22. The spacer baffles 26 are arranged between each copper core 131 to isolate and shield the live parts of the base plate, thereby enhancing the safety of the copper busbar connector. The spacer sleeves 27 are mainly used to isolate the connectors installed at the first connecting hole 231, playing an effective positioning and protection role. The first reinforcing ribs 261 and the second reinforcing ribs 271 strengthen the overall structural strength.

[0039] Specifically, a rubber plug that matches the inner diameter of the spacer sleeve 27 can be inserted inside the spacer sleeve 27 to further seal the first connection hole 231 and improve the waterproof sealing performance of the copper busbar connector.

[0040] Specifically, such as Figure 5 As shown, the side plate 1312 has multiple material removal grooves 1313 near the bottom plate 1311, which increases the bonding force between the copper core 131 and the plastic body 2, making the plastic body 2, which is integrally injection molded on the outer periphery of the copper core 131, fit more tightly with the copper core 131 and is less likely to slip off.

[0041] Specifically, such as Figure 4 and Figure 5 As shown, the first plastic sleeve 24 has an injection groove 240 at one end opposite the first end face 21. An isolation layer 2401 extends from the bottom of the injection groove 240 and fits onto the side plate 1312. The waterproof adhesive 5 is located within the injection groove 240. The isolation layer 2401 increases the contact area between the plastic body 2 and the side plate 1312, and also increases the contact area between the waterproof adhesive 5 and the plastic body 2 and the side plate 1312, resulting in better adhesion. The isolation layer 2401 is an inner ring, and the side wall of the first plastic sleeve 24 is an outer ring. The injection groove 240 is located between the outer and inner rings. The top of the inner ring is lower than the top of the outer ring. The waterproof adhesive 5 fills the injection groove 240 and covers the top of the inner ring (isolation layer 2401) and connects with the side plate 1312, providing a good sealing effect and preventing overflow during application.

[0042] The present invention also provides a wiring assembly, such as Figures 7 to 10As shown, the wiring assembly includes a mounting panel 6, a connector 7, and a cable. The wiring assembly also features a waterproof and sealed copper busbar connector as described above. The connector 7 passes through the plastic body 2 to fix the copper busbar connector to the mounting panel 6. The first sealing ring 41 and the second sealing ring 42 abut against the mounting panel 6, providing a good sealing effect.

[0043] The present invention provides a waterproof and sealed copper busbar connector and wiring assembly. The copper busbar body 1 is integrally injection molded into the plastic body 2 and is provided with a waterproof sealing ring 4, a sealing bushing 3 and a waterproof adhesive 5. A rubber dust plug can also be inserted into the spacer sleeve 27. With multiple sealing settings, the structure is tight and the arrangement is neat, effectively meeting the waterproof and sealing requirements of the copper busbar.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions or improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A waterproof and sealed copper busbar connector, characterized in that, The device includes a copper busbar body and an integrally injection-molded plastic body. The plastic body has a first end face and a second end face. One end of the copper busbar body is a first end that protrudes through the first end face, and the other end of the copper busbar body is a second end that protrudes through the second end face. The plastic body is provided with a connecting hole that passes through the first end face and the second end face. A sealing bushing is provided in the connecting hole. A waterproof sealing ring is provided on the first end face. The copper busbar body includes multiple copper busbar assemblies. Each copper busbar assembly includes a copper core, a first connector, and a second connector. The copper core is L-shaped and includes a base plate and a side plate. The first connector is riveted to the base plate, and the second connector is riveted to the side plate. The plastic body has an integrally molded first plastic sleeve on the first end face side that fits onto the side plate. A waterproof adhesive is provided between the first plastic sleeve and the side plate. The plastic body has an integrally molded second plastic sleeve on the second end face side that fits onto the first connector. The first end face has a first sealing groove surrounding the periphery of each of the first plastic sleeves, and the first end face also has a second sealing groove surrounding the periphery of the connecting hole. The waterproof sealing ring includes a first sealing ring installed in the first sealing groove and a second sealing ring installed in the second sealing groove. The first sealing ring has a groove at one end opposite to the first end face to provide deformation space for the first sealing ring, and the second sealing ring has a groove at one end opposite to the first end face to provide deformation space for the second sealing ring. The first plastic sleeve has an injection groove at one end opposite to the first end face. The bottom of the injection groove extends into an isolation layer that fits onto the side plate, and the waterproof adhesive is located inside the injection groove.

2. The waterproof and sealed copper busbar connector as described in claim 1, characterized in that, The copper core is made of copper. The first connector has mounting holes for connecting other components or equipment. The opening of the mounting holes is set in a direction opposite to the second end face. The bottom plate has a bottom plate hole at the riveting point with the first connector. The second connector is a nut. The side plate has a side plate hole at the riveting point with the second connector.

3. A waterproof and sealed copper busbar connector as described in claim 2, characterized in that, The mounting hole extends from the second end face toward the first end face, and the end of the mounting hole near the first end face is conical. The outer periphery of the first connector has a positioning ring that fits tightly against the base plate.

4. A waterproof and sealed copper busbar connector as described in claim 1, characterized in that, The first end face has a plurality of first grooves, and the first grooves are adjacent to the first plastic sleeve.

5. A waterproof and sealed copper busbar connector as described in claim 1, characterized in that, The connecting hole includes a first connecting hole located between adjacent first plastic sleeves, and the connecting hole also includes a second connecting hole near the left and right ends of the plastic body.

6. A waterproof and sealed copper busbar connector as described in claim 5, characterized in that, The first end face is provided with a first sealing groove surrounding the periphery of each of the first plastic sleeves, and the first end face is also provided with a second sealing groove surrounding the periphery of the first connecting hole, the second connecting hole being located outside the first sealing groove.

7. A waterproof and sealed copper busbar connector as described in claim 1, characterized in that, The plastic body has spacer baffles formed on the left and right sides of the bottom plate on the second end face, and a plurality of first reinforcing ribs are provided between the outer side of the baffles and the second end face; the plastic body has spacer sleeves formed around the first connecting hole on the second end face, and a plurality of second reinforcing ribs are provided between the outer side of the spacer sleeves and the second end face.

8. A waterproof and sealed copper busbar connector as described in claim 1, characterized in that, The side plate has multiple material discharge grooves near the bottom plate.

9. A wiring assembly, comprising a mounting panel, connectors, and a cable, characterized in that, The wiring assembly includes a waterproof, sealed copper busbar connector as claimed in any one of claims 1 to 8.

Citation Information

Patent Citations

  • Sealing device for copper bar connector

    CN110048258A