Three-proofing wire holder of power cabinet

By designing a three-proof terminal block for the power cabinet, and utilizing the combination of the limiting part and the cover, the problems of exposed wiring and inconvenient maintenance of the terminal block are solved, achieving the effects of rapid installation and safety protection.

CN223986791UActive Publication Date: 2026-03-10中振建设有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-08
Publication Date
2026-03-10

AI Technical Summary

Technical Problem

The existing electrical cabinet terminal blocks have exposed wire connections, which poses a safety hazard. Furthermore, the installation and maintenance process requires workers to maintain specific postures, increasing maintenance costs.

Method used

A three-proof wiring terminal for power cabinets was designed. It uses wire slots and wiring blocks set on the base component. Through the cooperation of limiting parts, clamps and covers, it can realize the rapid installation and protection of the line and avoid tool operation.

Benefits of technology

It enables rapid installation and protection of lines, reduces the need for tool operation during maintenance, and improves safety and convenience.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a three-proofing wire holder of an electric power cabinet, and particularly relates to the technical field of wire holders, the three-proofing wire holder comprises a base member and a plurality of wire slot positions arranged on the base member in a linear array, wiring blocks are movably arranged in the wire slot positions, and limiting parts are arranged on the inner walls of the two opposite sides of the wire slot positions. Positioning grooves formed in the outer walls of the two opposite sides of the wiring block are matched with the limiting parts, and clamping plates are fixedly installed on the inner walls of the positioning grooves. According to the three-proofing wire holder of the power cabinet provided by the utility model, the wiring block is inserted into the wire slot position, the limiting part is positioned in the positioning groove, and then the wiring block continuously slides in the wire slot position, so that the bending part on the clamping plate is positioned below the limiting part after being separated from the limiting part and recovered from deformation, and at the moment, the wiring block is quickly locked in the wire slot position; according to the utility model, rapid installation of the circuit is realized, maintenance and installation by workers are facilitated, and the plurality of wiring blocks equipped with the circuit are sealed by plugging the sealing cover on the base member, so that protection is carried out.
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Description

Technical Field

[0001] This utility model relates to the field of terminal block technology, and more specifically to a three-proof terminal block for power cabinets. Background Technology

[0002] Terminal blocks play a crucial role in power cabinets, primarily serving to reliably connect cables and internal circuitry to ensure proper current transmission. They also effectively prevent short circuits and leakage, enhancing the safety of the power cabinet.

[0003] According to patent publication number CN217507666U, published on 2022-09-27, a terminal block with screw anti-loosening technology is disclosed. It includes a base with several wiring grooves. Each wiring groove contains a wiring piece and a three-piece screw. The wiring piece includes a top piece I, a front piece II, and a rear piece III. A protrusion is located at the center of the lower surface of piece I, and a through-hole is located from the center of the upper surface of piece I to the bottom of the protrusion. The wiring piece is inserted into the wiring groove from the bottom of the base. The bottom of the wiring groove has a limiting groove that matches piece II and piece III. Anti-loosening barbs are located on both sides of piece II, and a welding foot is located at the bottom of piece II. The flat washer of the three-piece screw is square. Several guide ribs matching the flat washer are located on the vertical edges of the wiring groove, and several anti-loosening ribs are located at the corners of the top opening of the wiring groove.

[0004] In existing technologies, including the aforementioned patents, several wiring slots on the base are used, along with screws, to securely fix the wiring connectors. This common method of mounting with screws on the base is not only simple but also allows workers to quickly inspect the wiring. However, with this method, the wiring connectors are mostly exposed, which is less safe. Furthermore, workers need to constantly use screwdrivers and other tools to tighten the screws inside the electrical cabinet during wiring. This process requires workers to maintain a specific posture, and if the parts used to connect the wiring connectors are damaged, the entire base needs to be disassembled and replaced, increasing maintenance costs. Utility Model Content

[0005] The purpose of this utility model is to provide a three-proof wiring socket for power cabinets to solve the above-mentioned technical problems.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a three-proof wiring socket for an electrical cabinet, comprising a base component and a plurality of wire slots arranged in a linear array thereon, wherein a wiring block is movably disposed within the wire slot, and a limiting part is provided on the inner walls of opposite sides of the wire slot, and the positioning grooves opened on the outer walls of opposite sides of the wiring block match the limiting part, a clamping plate is fixedly installed on the inner wall of the positioning groove, and a bent part that moves to the limiting part is provided on the clamping plate, and a cover covering the plurality of wiring blocks is movably disposed on the base component.

[0007] Preferably, the top of the wiring block is provided with wire channels, and the cover has a semi-circular opening corresponding to multiple wire channels.

[0008] Preferably, the top of the terminal block is provided with a mounting ring, and a conductive rod located inside the mounting ring is fixedly installed on the terminal block, with an elastic arc-shaped support at the top of the conductive rod.

[0009] Preferably, the bottom end of the conductive rod is fixedly installed on the elastic contact plate provided on the wiring block, and the base component is provided with a main circuit board that is movably connected to multiple elastic contact plates.

[0010] Preferably, the elastic contact plate is symmetrically fixedly mounted with arc-shaped plates.

[0011] Preferably, a pressure block is slidably disposed within the mounting ring, and the arc-shaped surface at the bottom of the pressure block and the elastic arc-shaped support flap are engaged in abutment.

[0012] Preferably, the top end of the mounting ring is threadedly fitted with a fixing block, and the fixing block is movably mounted on the pressure block.

[0013] Preferably, the card plate is a flexible plastic plate.

[0014] Preferably, the elastic contact plate is an elastic stainless steel plate.

[0015] Preferably, the cover is a rigid transparent plastic sheet.

[0016] In the above technical solution, the three-proof terminal block for power cabinet provided by this utility model has the following beneficial effects: the wiring is installed on the terminal block, and then the terminal block is inserted into the wire slot and the limiting part is located in the positioning slot. At this time, the limiting part is used to limit the terminal block to a certain extent. Then, the terminal block continues to slide in the wire slot so that the bent part on the card plate, after being disengaged from the limiting part and restoring its deformation, is located below the limiting part. At this time, the terminal block is quickly locked in the wire slot to realize the rapid installation of the wiring. At the same time, after the wiring is installed on the terminal block, it is inserted into the wire slot, which is convenient for workers to maintain and install. It is not necessary to maintain a fixed posture for installation. The cover is inserted into the base to enclose multiple terminal blocks with wiring, thereby providing protection. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 This is a schematic diagram of the overall structure of the base component provided in an embodiment of the present utility model;

[0019] Figure 2 A schematic diagram of the wiring block structure provided in an embodiment of this utility model;

[0020] Figure 3 A schematic diagram of the cross-sectional structure of the base component provided in an embodiment of this utility model;

[0021] Figure 4 This is a schematic cross-sectional view of the base component provided in an embodiment of the present utility model.

[0022] Figure 5 This is an enlarged structural diagram of point A provided in an embodiment of the present utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Base component; 2. Terminal block; 3. Clamping plate; 4. Fixing block; 5. Main circuit board; 6. Elastic contact plate; 7. Conductive rod; 8. Pressure block; 9. Cover; 11. Wire groove; 12. Limiting part; 21. Wire channel; 22. Mounting ring; 23. Through hole; 24. Positioning groove; 31. Bending part; 51. Mounting hole; 61. Arc plate; 71. Elastic arc-shaped support; 81. Arc surface; 91. Semi-circular opening. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0026] like Figure 1-5As shown, a three-proof wiring socket for an electrical cabinet includes a base 1 and a plurality of wire slots 11 arranged in a linear array on the base 1. A wiring block 2 is movably disposed in the wire slot 11. Limiting portions 12 are provided on the inner walls of opposite sides of the wire slot 11. The positioning grooves 24 opened on the outer walls of opposite sides of the wiring block 2 match the limiting portions 12. A retaining plate 3 is fixedly installed on the inner wall of the positioning groove 24. A bending portion 31 that moves to the limiting portion 12 is provided on the retaining plate 3. A cover 9 covering the plurality of wiring blocks 2 is movably disposed on the base 1. The wiring is installed on the terminal block 2, and then the terminal block 2 is inserted into the wire slot 11, with the limiting part 12 located in the positioning slot 24. At this time, the limiting part 12 is used to limit the terminal block 2. Then, the terminal block 2 continues to slide in the wire slot 11, so that the bent part 31 on the card plate 3, after being disengaged from the limiting part 12 and restoring its deformation, is located below the limiting part 12. At this time, the terminal block 2 is quickly locked in the wire slot 11 to realize the rapid installation of the wiring. At the same time, after the wiring is installed on the terminal block 2, it is inserted into the wire slot 11, which is convenient for workers to maintain and install. It is not necessary to maintain a fixed posture for installation. The cover 9 is inserted into the base piece 1 to seal the multiple terminal blocks 2 containing wiring, thereby protecting them.

[0027] As a further technical solution provided by this utility model, the top of the wiring block 2 is provided with a wire channel 21, and the cover 9 is provided with a semi-circular opening 91 corresponding to multiple wire channels 21.

[0028] Specifically, such as Figure 1 As shown, the wires are placed in the wire channel 21 to fit together. Then, when the connector 2 is snapped into the wire groove 11, the cover 9 is inserted into the base 1 to close the multiple connectors 2 containing wires. At this time, the semi-circular opening 91 on the cover 9 corresponds to the wire channel 21 so that the wires are also embedded in the semi-circular opening 91. The cover 9 is then used to squeeze and limit the wires in the wire channel 21 and to perform some sorting.

[0029] Furthermore, a mounting ring 22 is provided on the top of the terminal block 2, and a conductive rod 7 located inside the mounting ring 22 is fixedly installed on the terminal block 2. An elastic arc-shaped support 71 is provided at the top of the conductive rod 7.

[0030] Specifically, the mounting ring 22 has a through hole 23 corresponding to the cable channel 21. The cable is arranged in the cable channel 21 and passes through the through hole 23, so that the cable and the elastic arc-shaped support 71 on the conductive rod 7 come into contact to make circuit connection. The through hole 23 and the mounting ring 22 can facilitate the guidance and installation of the cable.

[0031] Furthermore, the bottom end of the conductive rod 7 is fixedly installed on the elastic contact plate 6 provided on the wiring block 2, and the base 1 is provided with a main circuit board 5 that is movably connected to multiple elastic contact plates 6.

[0032] Specifically, when the connector 2 is snapped into the wire slot 11, the elastic contact plate 6 on the connector 2 is attached to the main circuit board 5. The main circuit board 5 then contacts the elastic contact plates 6 on multiple connector 2 respectively, thereby realizing the circuit shunting and the rapid connection of the line. When the connector 2 is snapped into the wire slot 11, the elastic contact plate 6 and the main circuit board 5 are squeezed and deformed to make the elastic contact plate 6 stably contact the main circuit board 5.

[0033] Furthermore, an arc-shaped plate 61 is symmetrically fixedly installed on the elastic contact plate 6.

[0034] Specifically, through the arc-shaped plate 61 provided on the elastic contact plate 6, such as Figure 2 As shown, when the main circuit board 5 is inserted into the base component 1, the main circuit board 5 slides and presses against the arc-shaped plate 61, allowing the main circuit board 5 to be quickly detached from the base component 1 and make contact with the elastic contact plate 6 for electrical connection. This allows for quick replacement of the main circuit board 5 without disassembling the wiring block 2. The main circuit board 5 has mounting holes 51, allowing it to be quickly fixed to the base component 1 using bolts.

[0035] Furthermore, a pressure block 8 is slidably disposed inside the mounting ring 22, and the arc-shaped surface 81 and the elastic arc-shaped support 71 at the bottom of the pressure block 8 are in abutting cooperation.

[0036] Specifically, such as Figure 5 As shown, the line is placed on the conductive rod 7 by the elastic arc-shaped support 71. When the pressure block 8 moves down, the arc-shaped surface 81 at the bottom of the pressure block 8 squeezes the elastic arc-shaped support 71, and then the elastic arc-shaped support 71 closes and clamps the line, thereby achieving a certain clamping and fixing of the line for quick installation.

[0037] Furthermore, the top of the mounting ring 22 is threadedly fitted with a fixing block 4, and the fixing block 4 is movably mounted on the pressure block 8.

[0038] Specifically, by rotating the fixing block 4, the fixing block 4 moves downward and pushes the pressing block 8. Then, the arc-shaped surface 81 on the pressing block 8 presses the elastic arc-shaped support 71, and then the elastic arc-shaped support 71 closes and clamps the circuit. By rotating the fixing block 4, the circuit can be quickly fixed, and the circuit can be quickly disassembled and assembled without the use of tools. Combined with the quick disassembly and assembly of the connector block 2, the circuit can be replaced for easy maintenance.

[0039] Furthermore, the cardboard plate 3 is made of flexible plastic.

[0040] Furthermore, the elastic contact plate 6 is made of elastic stainless steel.

[0041] Furthermore, the cap 9 is made of rigid transparent plastic.

[0042] Working principle: The circuit is arranged within the cable channel 21 and passes through the through hole 23, thereby making contact between the circuit and the elastic arc-shaped support 71 on the conductive rod 7 to establish a circuit connection. Then, by rotating the fixing block 4, the fixing block 4 moves downward and pushes the pressure block 8. The arc-shaped surface 81 on the pressure block 8 then presses against the elastic arc-shaped support 71, causing the elastic arc-shaped support 71 to close and clamp the circuit. Rotating the fixing block 4 allows the circuit to be quickly fixed onto the terminal block 2. Then, the connector 2 is inserted into the wire slot 11, and the limiting part 12 is positioned in the positioning slot 24. At this time, the limiting part 12 is used to limit the connector 2. Then, the connector 2 continues to slide in the wire slot 11, so that the bent part 31 on the clamping plate 3, after disengaging from the limiting part 12 and restoring its deformation, is located below the limiting part 12. At this time, the connector 2 is quickly locked in the wire slot 11 to achieve rapid installation of the wire. At the same time, after the wire is installed on the connector 2, it is inserted into the wire slot 11, which is convenient for workers to maintain and install, without having to maintain a fixed posture for installation, and also facilitates the subsequent replacement of the connector 2 individually. The cover 9 is inserted into the base part 1 to seal the multiple connectors 2 containing wires, thereby providing protection.

[0043] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A three-proofing terminal block of a power cabinet, characterized by, The utility model provides a base piece (1) and the linear array arrangement of multiple line groove positions (11) are arranged on it, the line groove position (11) is movably provided with the terminal block (2), the opposite side inner wall of line groove position (11) is provided with the limiting portion (12), and the limiting portion (12) of the opposite side outer wall of terminal block (2) is provided with the positioning groove (24) and matches, the inner wall of positioning groove (24) is fixedly installed with the clamping plate (3), and the clamping plate (3) is provided with the bending portion (31) that is movable in limiting portion (12), the base piece (1) is movably provided with the cover (9) of covering multiple terminal blocks (2).

2. The three-proofing terminal block of the power cabinet according to claim 1, characterized in that, The top of the terminal block (2) is provided with a wire channel (21), and the cover (9) is provided with a semicircular opening (91) corresponding to the plurality of wire channels (21).

3. The three-proofing terminal block of the power cabinet according to claim 1, characterized in that, The top of the terminal block (2) is provided with a mounting ring (22), and the terminal block (2) is fixedly installed with a conductive rod (7) located in the mounting ring (22), and the top end of the conductive rod (7) is provided with an elastic arc-shaped supporting piece (71).

4. The three-proofing terminal block of the power cabinet according to claim 3, characterized in that, The bottom end of the conductive rod (7) is fixedly installed on the elastic touch plate (6) provided on the terminal block (2), and the base piece (1) is inserted and connected with the main electric plate (5) movably connected with the plurality of elastic touch plates (6).

5. The three-proofing terminal block of the power cabinet according to claim 4, characterized in that, The elastic touch plate (6) is symmetrically fixedly installed with an arc-shaped plate (61).

6. The three-proofing terminal block of the power cabinet according to claim 3, characterized in that, The mounting ring (22) is slidably provided with a pressing block (8), and the arc-shaped surface (81) provided on the bottom of the pressing block (8) is in abutting engagement with the elastic arc-shaped supporting piece (71).

7. The three-proofing terminal block of the power cabinet according to claim 6, characterized in that, The top end of the mounting ring (22) is threadedly rotatably provided with a fixed block (4), and the fixed block (4) is movably arranged on the pressing block (8).

8. The three-proofing terminal block of the power cabinet according to claim 1, characterized in that, The clamping plate (3) is an elastic plastic plate.

9. The three-proofing terminal block of the power cabinet according to claim 4, characterized in that, The elastic touch plate (6) is an elastic stainless steel plate.

10. The three-proofing terminal block of the power cabinet according to claim 1, characterized in that, The cover (9) is a hard transparent plastic plate.

Citation Information

Patent Citations

  • Wiring terminal of screw anti-falling technology

    CN217507666U