Movable copper bar of power distribution cabinet

By introducing movable copper busbars and connecting mechanisms into the distribution cabinet, the safety hazards and maintenance inconvenience caused by fixed copper busbars are solved, improving flexibility and safety, and ensuring ease of operation and automatic power-off function.

CN223487649UActive Publication Date: 2025-10-28ZHUHAI HUAKONG ELECTRIC CO LTD
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Patent Information

Application Number
CN202422827302.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-20
Publication Date
2025-10-28
Estimated Expiration
2034-11-20

AI Technical Summary

Technical Problem

The fixed copper busbars in existing power distribution cabinets cause safety hazards, inconvenience in maintenance, and lack of flexibility.

Method used

A power distribution cabinet including movable copper busbars and a connecting mechanism was designed. Through the combination of slide rails, connecting rods and U-shaped contacts, the copper busbars can be moved flexibly and connected stably, ensuring safety and convenience.

Benefits of technology

It improves the flexibility and ease of operation of the distribution cabinet, reduces contact resistance, and provides automatic power-off safety protection.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of power equipment, in particular to a movable copper bar of a power distribution cabinet. Comprising a connecting mechanism and a movable copper bar, the connecting mechanism is installed in the power distribution cabinet, the movable copper bar is installed on the connecting mechanism, a sliding rail and a connecting rod are arranged on the connecting mechanism, and the connecting rod is connected with a cabinet door and the movable copper bar. The movable copper bar is provided with a contact end, and the contact end is of a double-concentric-square-shaped structure. According to the utility model, the door lock and the movable copper bar are connected together through the connecting rod, so that safe locking of the power distribution cabinet can be realized. When the cabinet door is opened, the copper bar is disconnected to realize power failure, and when the power distribution cabinet door is closed, the movable copper bar can be firmly locked at a specified position, so that potential safety hazards caused by accidents and during maintenance are avoided.
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Description

Technical Field

[0001] This utility model relates to the field of power equipment, specifically a movable copper busbar for a power distribution cabinet. Background Art

[0002] With increasing electricity demand and technological advancements, distribution cabinets may require regular upgrades and expansions. In some cases, fixed copper busbars can pose a safety hazard. For example, accidental opening of the cabinet door could lead to electric shock. Fixed copper busbars present significant drawbacks in terms of maintenance, flexibility, safety, and upgradeability / expansion capabilities for distribution cabinets. Therefore, these factors should be fully considered when designing distribution cabinets, and the appropriate copper busbar type and layout should be selected based on actual needs. Utility Model Content

[0003] The technical problem this solution aims to solve is: to design an innovative connection mechanism and copper busbar design, achieving a comprehensive improvement in the flexibility, ease of operation, and safety of the distribution cabinet. This design not only meets the high standards required by modern power systems for distribution cabinets.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a movable copper busbar for a power distribution cabinet, comprising a connecting mechanism and a copper busbar. The connecting mechanism is installed inside the power distribution cabinet. The copper busbar includes a movable copper busbar and a fixed copper busbar. The movable copper busbar is installed on the connecting mechanism, and a fixed frame is provided on the connecting mechanism. The movable copper busbar passes through the fixed frame. The movable copper busbar has a contact end and a transition end at both ends. The contact end has a double-loop structure design. The contact end is installed on a slide rail and moves along the slide rail. The contact end has a contact, which is a U-shaped contact. The U-shaped contact has a cut oblique groove at its corner. The contact has a contact box, which is installed on the fixed copper busbar. The contact section of the contact box is connected to the contact, and the contact section has a conical design.

[0005] The connecting mechanism is equipped with a slide rail and a connecting rod. The bottom of the slide rail has a groove and a mounting plate. The connecting rod passes through the groove and connects the cabinet door and the movable copper busbar. The connecting rod is a segmented design. The first end is connected to the bolt on the cabinet door, the middle end passes through the bottom of the slide rail and has a movable joint, and the last end is Y-shaped and connects to the adapter end of the movable copper busbar.

[0006] Furthermore, a push rod is provided below the head end, the front part of the push rod is a sliding groove, and there is a gear below the sliding groove. The movable joint can slide in the sliding groove. The end of the push rod also has a movable joint, which is fixedly installed on the mounting plate.

[0007] Furthermore, the adapter end is provided with bolts, and the connecting rod is connected to the bolts on the adapter end.

[0008] Furthermore, the angle of the beveled groove of the U-shaped contact is the same as the angle of the contact surface on the contact section of the contact box.

[0009] Furthermore, the fixed copper busbar is designed to be either vertical or horizontal, while the movable copper busbar is designed to be L-shaped.

[0010] Furthermore, when the fixed copper busbar is designed vertically, the contacts can be at the top or bottom of the contact end; when the fixed copper busbar is designed horizontally, the contacts can be at the left or right of the contact end.

[0011] The beneficial effects of this improved technical solution are as follows:

[0012] 1. Through the design of connecting rods and slide rails, the movable copper busbar can move as the cabinet door is opened and closed, increasing the flexibility and ease of operation of the distribution cabinet.

[0013] 2. The double-loop structure and contact box design at the contact end increase the contact area, improve conductivity, and reduce contact resistance.

[0014] 3. The design of the movable copper busbar makes maintenance and inspection more convenient, especially the automatic power cut-off when the cabinet door is accidentally opened, which provides overall safety for the power distribution cabinet. Attached Figure Description

[0015] Figure 1 This is an overall structural diagram of a movable copper busbar in a power distribution cabinet according to this utility model.

[0016] Figure 2 This utility model relates to a connecting rod and slide rail structure for a movable copper busbar in a power distribution cabinet.

[0017] Figure 3 This is a structural diagram of the contacts and contact box of a movable copper busbar in a power distribution cabinet according to this utility model. DETAILED DESCRIPTION

[0018] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings. The description of this module is only exemplary and explanatory, and should not be used to limit the scope of protection of this utility model in any way.

[0019] like Figure 1-3As shown, the technical solution describes a movable copper busbar for a distribution cabinet, including a cabinet body with a connecting mechanism 1 inside. The connecting mechanism 1 is installed inside the distribution cabinet and serves as a bridge for the movable copper busbar 2 to move within the cabinet. A fixed frame 11 is provided on the connecting mechanism 1 to stably support the movable copper busbar 2. The copper busbar section includes the movable copper busbar 2 and a fixed copper busbar 3. The movable copper busbar 2 can move flexibly via the connecting mechanism 1, while the fixed copper busbar 3 remains fixed, providing a stable connection point for the circuit. The fixed copper busbar 3 can be designed as vertical or horizontal according to actual needs. When the fixed copper busbar is designed vertically, the contacts 221 are located at the upper and lower ends of the contact end 22; while when the fixed copper busbar 3 is designed horizontally, the contacts 221 are located at the left and right ends of the contact end 22. This design allows the movable copper busbar 2 to flexibly adapt to different distribution cabinet layout requirements.

[0020] refer to Figure 1 The movable copper busbar 2 is L-shaped and passes through the fixed frame 11 of the connecting mechanism 1. Its two ends are respectively equipped with a contact end 22 and an adapter end 21. The contact end 22 adopts a double-loop structure design and moves along the slide rail. This unique design not only increases the contact area but also improves conductivity. The contact end 22 is equipped with a contact 221, and the contact 221 has a contact box 31. The adapter end 21 is equipped with bolts, and the Y-shaped design of the end of the connecting rod 10 is precisely for a tight connection with these bolts. This connection method is not only stable and reliable but also facilitates maintenance and inspection.

[0021] For reference Figure 2 The connecting rod 10 and slide rail 12 are shown in the diagram. The slide rail 12 has a groove 121 and a mounting plate 122 at its bottom. The connecting rod 10 passes through the groove 121. The connecting rod 10 adopts a segmented design. The first end 101 is tightly connected to the cabinet door with bolts. The middle end 102 cleverly passes through the groove 121 at the bottom of the slide rail. The middle end 102 has movable joints 102a and 102b. The last end 103 has a Y-shaped design and connects to the adapter end 21 of the movable copper busbar 2. This design allows the movable copper busbar 2 to move smoothly as the cabinet door is opened and closed. In particular, a push rod 104 is provided below the first end 101. The front part of the push rod 104 is a sliding groove, and a gear 100 is located below the sliding groove. The movable joint 102a can slide within the sliding groove. When the door is opened, the connecting rod of the first end 101 drives the push rod 104 to move in the opening direction. When the push rod 104 slides, the movable joints 102a and 102b drive the middle end 102 to move in the opposite direction to the push rod, thereby driving the movable copper busbar 2 to move as well. The same principle applies when the door is closed. This design of the connecting rod and the movable joint enables the movable copper busbar to move synchronously with the door. The end of the push rod 104 also has a movable joint 104a, which is fixedly mounted on the mounting plate 122.

[0022] For reference Figure 3The diagram shows the structural design of contact 221 and contact box 31. Contact box 31 is mounted on fixed copper busbar 3. Contact 221 on movable copper busbar 2 is a U-shaped contact. When movable copper busbar 2 is connected to fixed copper busbar 3, the U-shaped contact is inserted into contact box. A stationary contact bolt can be installed inside contact box 3. The stationary contact uses M10 (below 1600A) and M20 (1600A to 4000A) bolts. The U-shaped contact has a cut beveled groove at its corner. The angle of the bevel is the same as the angle of the contact surface of contact box 31. This design allows contact 221 to slide in and out smoothly when movable copper busbar 2 slides, while also ensuring good contact between movable and fixed copper busbars.

[0023] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Specific examples have been used in this document to illustrate the principles and implementation methods of this utility model. The above examples are merely to aid in understanding the method and core ideas of this utility model. The above descriptions are only preferred embodiments of this utility model. It should be pointed out that, due to the limitations of written expression, there are objectively infinite specific structures. For those skilled in the art, several improvements, modifications, or variations can be made without departing from the principles of this utility model, and the above technical features can be combined in an appropriate manner. These improvements, modifications, variations, or combinations, or the direct application of the concept and technical solution of this utility model to other situations without modification, should all be considered within the scope of protection of this utility model.

Claims

1. A movable copper busbar for a power distribution cabinet, characterized in that: The device includes a connecting mechanism and a copper busbar. The connecting mechanism is installed inside the distribution cabinet. The copper busbar includes a movable copper busbar and a fixed copper busbar. The movable copper busbar is installed on the connecting mechanism. The connecting mechanism is provided with a slide rail and a connecting rod. The connecting rod connects the cabinet door and the movable copper busbar. The movable copper busbar has a contact end and a transition end at both ends. The contact end has a contact, which is a U-shaped contact.

2. The movable copper busbar of the distribution cabinet according to claim 1, characterized in that: The connecting rod is a segmented design including a head end, a middle end, a tail end, and a movable joint. The head end is connected to the bolt on the cabinet door. The middle end passes through the bottom of the slide rail. The tail end is a Y-shaped design connected to the adapter end. A push rod is provided below the head end. The front part of the push rod is a sliding groove. There is a gear under the sliding groove. The movable joint can slide in the sliding groove.

3. The movable copper busbar of the distribution cabinet according to claim 1, characterized in that: The adapter end is provided with a bolt, and the connecting rod is connected to the bolt on the adapter end.

4. The movable copper busbar of the distribution cabinet according to claim 1, characterized in that: The slide rail has a groove and a mounting plate at its bottom. The connecting rod passes through the groove, and the mounting plate has a movable joint for fixed installation.

5. A movable copper busbar for a power distribution cabinet according to claim 1, characterized in that: The contact end is a double-loop design and is mounted on the slide rail, and the contact end moves along the slide rail.

6. A movable copper busbar for a power distribution cabinet according to claim 1, characterized in that: The fixed copper busbar has a contact box, and the contact section of the contact box is connected to the contact head. The contact section has a tapered design.

7. A movable copper busbar for a power distribution cabinet according to claim 1, characterized in that: The connecting mechanism is provided with a fixed frame, and the movable copper busbar passes through the fixed frame.