A maintenance-friendly layered power switchgear busbar connection device

By using a layered design and a combination structure of damper clamping plates, the problem of inconvenient disassembly of the busbar connection device in the power switchgear is solved, improving maintenance efficiency and reducing the risk of short-circuit faults.

CN224288969UActive Publication Date: 2026-05-26CHINA CONSTR FIRST BUILDING (GRP) CORP LTD +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA CONSTR FIRST BUILDING (GRP) CORP LTD
Filing Date
2025-07-15
Publication Date
2026-05-26

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Abstract

This utility model relates to the technical field of busbar connection devices for switchgear, and discloses a layered power switchgear busbar connection device that is easy to maintain. It includes two first support tubes, each with a connection mechanism and an installation mechanism installed inside. The connection mechanism uses a first damper and a first clamping plate to install multiple busbars. The detachable first and second support tubes facilitate subsequent maintenance of the busbar connections, solving the problem of cumbersome disassembly and assembly due to the numerous fastening screws in traditional busbar trunking, thus improving the maintenance efficiency of electrical switchgear. The installation mechanism uses a second damper and a first elastic element to clamp and install the busbars. The internal first damper and multiple first clamping plates provide a secure clamping mechanism, reducing the electrodynamic impact during short-circuit faults and preventing secondary accidents caused by busbar displacement or poor contact.
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Description

Technical Field

[0001] This utility model relates to the technical field of busbar connection devices for switchgear, specifically a layered power switchgear busbar connection device that is easy to maintain. Background Technology

[0002] A switchgear is an electrical device. External lines first enter the main control switch inside the cabinet, then the branch control switches. Each branch circuit is configured according to its needs. A busbar refers to a shared path on which multiple devices are connected in parallel branches. In a computer system, it refers to a shared high-speed path on which multiple computers are connected in parallel, allowing for arbitrary data transmission between these computers, but only one device can send data at a time.

[0003] Chinese patent disclosure CN211208903U discloses a switchgear top tube busbar connection device, including an outgoing sleeve, an outgoing terminal block, an insulated busbar, and an insulated sleeve assembly. One end of the outgoing sleeve is fixed to the top of the switchgear, and the other end is connected to the outgoing terminal block. One end of the insulated busbar is provided with a connecting component, which is detachably connected to the outgoing terminal block. The insulated sleeve assembly is fitted onto the connection point between the insulated busbar and the outgoing terminal block, covering the connecting component and the outgoing terminal block. This invention utilizes the connecting component to adjust the installation height of the insulated busbar, ensuring a safe distance. Furthermore, the insulated sleeve assembly provides insulation for the connecting component and the outgoing terminal block, ensuring electrical safety.

[0004] However, it still has the following drawbacks: the connection device cannot be quickly installed or disassembled, making subsequent maintenance at the connection point inconvenient. Therefore, we propose a maintenance-friendly, layered busbar connection device for power switchgear to solve this problem. Utility Model Content

[0005] The purpose of this utility model is to provide a layered power switchgear busbar connection device that is easy to maintain, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a layered power switchgear busbar connection device that is easy to maintain, comprising two first support tubes, wherein a connection mechanism and an installation mechanism are installed inside the two first support tubes;

[0007] The connecting mechanism includes a support component and a connecting component, with the support component located on the side of the connecting component;

[0008] The support assembly includes several first dampers, the sides of which are fixedly connected to the inner walls of two first support tubes respectively, the sides of which are fixedly mounted with first clamping plates, the sides of which are slidably connected to the inner walls of two first support tubes respectively, the sides of which are fixedly mounted with first support rings respectively, and the sides of which are mounted with second support tubes respectively.

[0009] The connecting assembly includes two first mounting plates, the inner walls of the two first mounting plates are fixedly connected to the outer surfaces of the two first support tubes respectively, and second mounting plates are fixedly mounted on the sides of the two first mounting plates respectively. The outer surfaces of the two first support rings are threadedly connected to the sides of the two second mounting plates respectively.

[0010] A further improvement is that the installation mechanism includes a plurality of second dampers, the inner walls of the two second support tubes are respectively fixed to the sides of the plurality of second dampers, a first elastic element is fixedly installed on the sides of the plurality of second dampers, and a plurality of first through slots are respectively opened through the sides of the two first elastic elements.

[0011] A further improvement is that a third support ring is fixedly installed on the side of the second support tube on the left, a fourth support ring is fixedly installed on the side of the second support tube on the right, and a third mounting plate is fixedly installed on the side of the second support tube on the left.

[0012] A further improvement is that a fourth mounting plate is fixedly installed on the side of the second support tube on the left side, and a first threaded groove is opened through the side of the second support tube on the right side. The inner wall of the first threaded groove is threadedly connected to the outer surface of the fourth mounting plate.

[0013] A further improvement is that a threaded post is fixedly installed on the side of the third support ring, and the outer surface of the threaded post is threadedly connected to the side of the fourth support ring.

[0014] A further improvement is that a number of fixing blocks are fixedly installed on the outer surfaces of the third and fourth support rings, and the sides of the fixing blocks are respectively fixed by bolts.

[0015] Compared with the prior art, the beneficial effects of this utility model are: the easy-to-maintain layered power switch cabinet busbar connection device, by setting a connection mechanism, by setting a first damper and a first clamping plate to install multiple busbars, and by setting a detachable first support pipe and a second support pipe, facilitates subsequent maintenance operations at the busbar connection points, solves the problem of cumbersome disassembly and assembly caused by the large number of fastening screws in traditional busbar trunking, and thus improves the maintenance efficiency of electrical switch cabinets;

[0016] By setting up an installation mechanism, the busbar is clamped and installed by setting up a second damper and a first elastic element. The first damper and multiple first clamping plates are installed inside for fixed installation. The stable clamping can reduce the electrodynamic impact during short circuit faults and avoid secondary accidents caused by busbar displacement or poor contact. Attached Figure Description

[0017] Figure 1 This is a top sectional view of the structure of this utility model;

[0018] Figure 2 This is a front view of the structure of this utility model;

[0019] Figure 3 This is a partially exploded view of the structure of this utility model;

[0020] Figure 4 This is a front sectional view of the structure of this utility model;

[0021] Figure 5 This is a partial front sectional view of the structure of this utility model.

[0022] In the figure: 1. First support tube; 2. Connecting mechanism; 201. First damper; 202. First clamping plate; 203. First support ring; 204. Second support tube; 205. First mounting plate; 206. Second mounting plate; 3. Mounting mechanism; 301. Second damper; 302. First elastic element; 303. Third support ring; 304. Fourth support ring; 305. Third mounting plate; 306. Fourth mounting plate; 307. Fixing block. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figures 1-5 This utility model provides a technical solution: a layered power switchgear busbar connection device that is easy to maintain, including two first support pipes 1, and a connection mechanism 2 and an installation mechanism 3 are installed inside the two first support pipes 1;

[0025] The connecting mechanism 2 includes a support component and a connecting component, with the support component located on the side of the connecting component;

[0026] The support assembly includes a plurality of first dampers 201, the sides of which are fixedly connected to the inner walls of two first support tubes 1 respectively, a first clamping plate 202 is fixedly installed on the sides of the plurality of first dampers 201 respectively, the sides of the plurality of first clamping plates 202 are slidably connected to the inner walls of two first support tubes 1 respectively, a first support ring 203 is fixedly installed on the sides of two first support tubes 1 respectively, and a second support tube 204 is installed on the sides of two first support rings 203 respectively;

[0027] The connecting assembly includes two first mounting plates 205, the inner walls of which are fixedly connected to the outer surfaces of two first support pipes 1 respectively, and second mounting plates 206 are fixedly installed on the sides of the two first mounting plates 205 respectively. The outer surfaces of two first support rings 203 are threadedly connected to the sides of the two second mounting plates 206 respectively. By setting two second mounting plates 206, the first support pipes 1 and the second support pipes 204 are installed, thereby adjusting the connecting device according to the different widths and lengths of the busbar.

[0028] The mounting mechanism 3 includes several second dampers 301. The inner walls of two second support tubes 204 are respectively fixed to the sides of several second dampers 301. First elastic elements 302 are fixedly installed on the sides of several second dampers 301. Several first through slots are respectively opened on the sides of two first elastic elements 302. By setting the first elastic elements 302, multiple busbars with different diameters and thicknesses can be fixedly installed.

[0029] A third support ring 303 is fixedly installed on the side of the second support tube 204 on the left side, a fourth support ring 304 is fixedly installed on the side of the second support tube 204 on the right side, and a third mounting plate 305 is fixedly installed on the side of the second support tube 204 on the left side.

[0030] A fourth mounting plate 306 is fixedly installed on the side of the second support pipe 204 on the left side, and a first threaded groove is opened through the side of the second support pipe 204 on the right side. The inner wall of the first threaded groove is threadedly connected to the outer surface of the fourth mounting plate 306. By setting the fourth mounting plate 306, the two second support pipes 204 are connected to each other, thereby effectively connecting and installing the busbar.

[0031] A threaded post is fixedly installed on the side of the third support ring 303, and the outer surface of the threaded post is threadedly connected to the side of the fourth support ring 304.

[0032] Several fixing blocks 307 are fixedly installed on the outer surface of the third support ring 303 and the outer surface of the fourth support ring 304. The sides of the fixing blocks 307 are fixedly installed by bolts.

[0033] In use, by setting the connecting mechanism 2, the first support pipe 1 and the second support pipe 204 on both sides are connected and installed, thereby threading the first mounting plate 205 and the second mounting plate 206. At the same time, the two second support pipes 204 installed inside are connected, so that the third support ring 303 and the fourth support ring 304 are threaded. Then, the fixing blocks 307 on both sides are bolted and installed, and the busbar passes through the inside of the first support pipe 1, so that the first damper 201 and the first clamping plate 202 fix the two ends of the busbar. At the same time, it passes through the inside of the first elastic member 302, so that the first elastic member 302 moves and the second damper 301 buffers the operation, thereby connecting the busbar of the power switch cabinet.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A layered power switchgear busbar connection device for ease of maintenance, comprising two first support tubes (1), characterised in that: The two first support tubes (1) are equipped with a connecting mechanism (2) and an installation mechanism (3); The connecting mechanism (2) includes a support component and a connecting component, with the support component located on the side of the connecting component; The support assembly includes a plurality of first dampers (201), the sides of which are fixedly connected to the inner walls of two first support tubes (1), the sides of which are fixedly mounted with first clamping plates (202), the sides of which are slidably connected to the inner walls of two first support tubes (1), the sides of which are fixedly mounted with first support rings (203), and the sides of which are fixedly mounted with second support tubes (204); The connecting assembly includes two first mounting plates (205), the inner walls of the two first mounting plates (205) are fixedly connected to the outer surfaces of the two first support tubes (1), and the sides of the two first mounting plates (205) are fixedly mounted with second mounting plates (206), and the outer surfaces of the two first support rings (203) are threadedly connected to the sides of the two second mounting plates (206).

2. The easy-to-maintain layered power switchgear busbar connection device according to claim 1, characterized in that: The installation mechanism (3) includes several second dampers (301), the inner walls of the two second support tubes (204) are respectively fixed to the sides of several second dampers (301), and first elastic members (302) are fixedly installed on the sides of several second dampers (301). Several first through slots are respectively opened on the sides of the two first elastic members (302).

3. The easy-to-maintain layered power switchgear busbar connection device according to claim 2, characterized in that: A third support ring (303) is fixedly installed on the side of the second support tube (204) on the left side, a fourth support ring (304) is fixedly installed on the side of the second support tube (204) on the right side, and a third mounting plate (305) is fixedly installed on the side of the second support tube (204) on the left side.

4. The easy-to-maintain layered power switchgear busbar connection device according to claim 3, characterized in that: A fourth mounting plate (306) is fixedly installed on the side of the second support tube (204) located on the left side, and a first threaded groove is opened through the side of the second support tube (204) located on the right side. The inner wall of the first threaded groove is threadedly connected to the outer surface of the fourth mounting plate (306).

5. A maintenance-friendly layered power switchgear busbar connection device according to claim 4, characterized in that: A threaded post is fixedly installed on the side of the third support ring (303), and the outer surface of the threaded post is threadedly connected to the side of the fourth support ring (304).

6. The easy-to-maintain layered power switchgear busbar connection device according to claim 5, characterized in that: A plurality of fixing blocks (307) are fixedly installed on the outer surface of the third support ring (303) and the outer surface of the fourth support ring (304), and the sides of the plurality of fixing blocks (307) are respectively fixedly installed by bolts.