A modular device for medium-voltage circuit breaker compartment

Abstract

This utility model relates to the field of power equipment technology, specifically a modular device for a medium-voltage circuit breaker compartment. It includes an outer frame, with lifting rings fixedly connected to the surface of the outer frame. A middle partition is movably connected to the surface of the outer frame, and an upper valve is movably connected to the surface of the middle partition. A lower valve is movably connected below the upper valve, and slots are provided on both sides of the lower valve. A valve pushing mechanism is movably connected to the surface of the outer frame, a connecting rod is fixedly connected to the surface of the outer frame, and a grounding switch interlock is movably connected to the surface of the outer frame. A grounding switch operating shaft is also provided on the surface of the outer frame. This utility model, through overall modification, makes the equipment narrower than a standard medium-voltage switchgear. On-site upgrades do not change the original cabinet width, and it can achieve two sets of outgoing lines on the same cabinet (upper and lower). It features powerful standard modular functionality. The outer frame and middle partition are riveted with steel plates, resulting in a robust structure. The lifting rings facilitate installation and transportation.

Description

Technical Field

[0001] This utility model relates to the field of power equipment technology, specifically a modular device for a medium-voltage circuit breaker compartment. Background Technology

[0002] The modular unit for medium-voltage circuit breakers is a device with a modular design, designed to improve the flexibility, ease of maintenance, and cost-effectiveness of medium-voltage switchgear. Through its modular design, high performance, intelligence, and strong adaptability, it enhances the flexibility, ease of maintenance, and reliability of the equipment, meeting the needs of different industries and scenarios.

[0003] The modular functional unit of the medium-voltage circuit breaker compartment has the advantages of compact structure, independent function, good rigidity, good interchangeability, light weight, and convenient installation, maintenance and repair. The existing medium-voltage cabinet is limited in width, and the original cabinet width needs to be changed when upgrading and transforming it on site, and the installation is inconvenient. Utility Model Content

[0004] The purpose of this utility model is to provide a modular device for medium-voltage circuit breaker compartments to solve the problems mentioned in the background art, such as the limited width of existing medium-voltage switchgear, the need to change the original switchgear width during on-site upgrades and renovations, and the inconvenience of installation.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a modular device for a medium-voltage circuit breaker compartment, comprising an outer frame, a lifting ring fixedly connected to the surface of the outer frame, a middle partition movably connected to the surface of the outer frame, an upper valve movably connected to the surface of the middle partition, a lower valve movably connected below the upper valve, slots on both sides of the lower valve, a valve pushing mechanism movably connected to the surface of the outer frame, a connecting rod fixedly connected to the surface of the outer frame, a grounding switch interlock movably connected to the surface of the outer frame, and a grounding switch operating shaft provided on the surface of the outer frame.

[0006] Preferably, the upper valve is movably connected to the outer frame via a middle partition, and the upper valve is movably connected to the lower valve via a middle partition.

[0007] Preferably, there are two sets of slots, and each set has four slots. Slots are provided on both sides of the upper door, and the upper door is movably connected to the slots and connecting rods.

[0008] Preferably, the valve pushing mechanism and the connecting rod are movably connected, the upper valve is movably connected to the valve pushing mechanism via the connecting rod, and the valve pushing mechanism is movably connected to the lower valve via the connecting rod.

[0009] Preferably, a grounding switch is movably connected to the lower end of the partition plate, a lower contact box is movably connected to the surface of the partition plate, an upper contact box is movably connected to the upper end of the partition plate, and a circuit breaker is movably connected to the surface of the outer frame.

[0010] Preferably, the grounding switch is movably connected to the outer frame via a middle partition, the lower contact box is movably connected below the upper contact box, and the lower contact box is movably connected to the upper contact box via the middle partition.

[0011] Preferably, the circuit breaker is movably connected via an outer frame and a central partition, and the circuit breaker is movably connected via an outer frame and a grounding switch.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model modifies the overall design, making the equipment narrower than the standard medium-voltage switchgear. The original cabinet width is not changed during on-site upgrades and modifications. It can also achieve two sets of outgoing lines on the same cabinet, one above the other. The standard modular design is powerful. The outer frame and the middle partition are riveted with steel plates, resulting in a strong structure. The lifting rings facilitate installation and transportation.

[0014] 2. This utility model adjusts the positions of the upper and lower valves through a valve pushing mechanism. The circuit breaker has a built-in connecting copper busbar. The grounding switch is connected to the grounding switch operating shaft through a bevel gear. When the circuit breaker is pushed to the working position, it is interlocked with the grounding switch through the grounding switch interlock. That is, the grounding switch cannot be closed when the circuit breaker is in the working position. The grounding switch can only be closed when the circuit breaker is moved to the isolation and disconnect position. Attached Figure Description

[0015] Figure 1 This is a three-dimensional front view of the structure of this utility model;

[0016] Figure 2 This is a side-view perspective view of the structure of this utility model;

[0017] Figure 3 This utility model Figure 1 A three-dimensional structural diagram of the upper and middle trapdoor;

[0018] Figure 4 This utility model Figure 2 A three-dimensional structural diagram of the grounding switch;

[0019] Figure 5 This utility model Figure 1 A three-dimensional schematic diagram of the structure of the operating shaft of the grounding switch.

[0020] In the diagram: 1. Outer frame; 11. Lifting ring; 2. Middle partition; 3. Upper valve; 31. Lower valve; 32. Slot; 4. Valve pushing mechanism; 41. Connecting rod; 5. Grounding switch interlock; 6. Grounding switch operating shaft; 7. Grounding switch; 8. Lower contact box; 9. Upper contact box; 10. Circuit breaker. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0022] Please see Figure 1-5 One embodiment provided by this utility model:

[0023] A modular device for a medium-voltage circuit breaker compartment includes an outer frame 1. Lifting rings 11 are fixedly connected to the surface of the outer frame 1. A middle partition 2 is movably connected to the surface of the outer frame 1. An upper valve 3 is movably connected to the surface of the middle partition 2. A lower valve 31 is movably connected below the upper valve 3. Slots 32 are provided on both sides of the lower valve 31. A valve pushing mechanism 4 is movably connected to the surface of the outer frame 1. A connecting rod 41 is fixedly connected to the surface of the outer frame 1. A grounding switch interlock 5 is movably connected to the surface of the outer frame 1. A grounding switch operating shaft 6 is provided on the surface of the outer frame 1. The outer frame 1 and the middle partition 2 are riveted together with steel plates, resulting in a robust structure. Lifting rings 11 are installed on both sides of the outer frame 1 for convenient equipment installation and handling.

[0024] Furthermore, the upper valve 3 is movably connected to the outer frame 1 via the middle partition 2, and the upper valve 3 is movably connected to the lower valve 31 via the middle partition 2. The upper valve 3 and the lower valve 31 are movably connected to the upper and lower sides of the surface of the middle partition 2, and the positions of the upper valve 3 and the lower valve 31 are adjusted by the valve pushing mechanism 4.

[0025] Furthermore, there are two sets of slots 32, and each set of slots 32 has four slots. Slots 32 are provided on both sides of the upper valve 3. The upper valve 3 is movably connected to the connecting rod 41 through the slots 32. The upper valve 3 and the lower valve 31 are sleeved on the surface of the connecting rod 41 through the slots 32. The connecting rod 41 is distributed on both sides of the upper valve 3, making the movement of the upper valve 3 and the lower valve 31 more stable.

[0026] Furthermore, the valve pushing mechanism 4 and the connecting rod 41 are movably connected. The upper valve 3 is movably connected to the valve pushing mechanism 4 via the connecting rod 41, and the valve pushing mechanism 4 is movably connected to the lower valve 31 via the connecting rod 41. When the circuit breaker 10 is pushed to the working position, the upper valve 3 and the lower valve 31 are opened by the valve pushing mechanism 4, thereby realizing the connection between the circuit breaker 10 and the middle partition 2.

[0027] Furthermore, a grounding switch 7 is movably connected to the lower end of the partition 2, a lower contact box 8 is movably connected to the surface of the partition 2, an upper contact box 9 is movably connected to the upper end of the partition 2, and a circuit breaker 10 is movably connected to the surface of the outer frame 1. The lower contact box 8 and the upper contact box 9 have built-in copper busbars, and the lower contact box 8 and the upper contact box 9 undertake the functions of indoor electrical connection and insulation isolation of the circuit breaker.

[0028] Furthermore, the grounding switch 7 is movably connected to the outer frame 1 via the middle partition 2, and the lower contact box 8 is movably connected below the upper contact box 9. The lower contact box 8 is movably connected to the upper contact box 9 via the middle partition 2. The grounding switch 7 is connected to the grounding switch operating shaft 6 via the outer frame 1. The grounding switch 7 is connected to the grounding switch operating shaft 6 via a bevel gear. When the circuit breaker 10 is pushed to the working position, it is interlocked with the grounding switch 7 via the grounding switch interlock 5, that is, the grounding switch cannot be closed when the circuit breaker 10 is in the working position.

[0029] Furthermore, the circuit breaker 10 is movably connected to the outer frame 1 and the middle partition 2, and the circuit breaker 10 is movably connected to the grounding switch 7 through the outer frame 1. The circuit breaker 10 connects and disconnects the circuit through the grounding switch 7, and the circuit is controlled by the connection between the grounding switch 7 and the grounding switch interlock 5.

[0030] Working principle: When using the device, the equipment is moved by the lifting ring 11. When the circuit breaker 10 is pushed to the working position, the upper valve 3 and the lower valve 31 are opened by the valve pushing mechanism 4. The valve pushing mechanism 4 adjusts the position of the upper valve 3 and the lower valve 31 through the connecting rod 41. It is interlocked with the grounding switch 7 through the grounding switch interlock 5. That is, the grounding switch cannot be closed when the circuit breaker 10 is in the working position. The grounding switch can only be closed when the circuit breaker 10 is moved to the isolation disconnect position. This equipment is narrower than the standard medium voltage cabinet. The width of the original cabinet is not changed when it is upgraded and modified on site. It can realize the installation mode of two sets of outgoing lines on the same cabinet. The standard modular function is powerful.

[0031] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A modular device for a medium-voltage circuit breaker compartment, comprising an outer frame (1), characterized in that: A lifting ring (11) is fixedly connected to the surface of the outer frame (1). A middle partition (2) is movably connected to the surface of the outer frame (1). An upper valve (3) is movably connected to the surface of the middle partition (2). A lower valve (31) is movably connected below the upper valve (3). Slots (32) are provided on both sides of the lower valve (31). A valve pushing mechanism (4) is movably connected to the surface of the outer frame (1). A connecting rod (41) is fixedly connected to the surface of the outer frame (1). A grounding switch interlock (5) is movably connected to the surface of the outer frame (1). A grounding switch operating shaft (6) is provided on the surface of the outer frame (1).

2. The modular device for a medium-voltage circuit breaker compartment according to claim 1, characterized in that: The upper door (3) is movably connected to the outer frame (1) via the middle partition (2), and the upper door (3) is movably connected to the lower door (31) via the middle partition (2).

3. The modular device for a medium-voltage circuit breaker compartment according to claim 1, characterized in that: There are two sets of slots (32), and each set of slots (32) has four slots. Slots (32) are provided on both sides of the upper valve (3). The upper valve (3) is movably connected to the connecting rod (41) through the slots (32).

4. A modular device for a medium-voltage circuit breaker compartment according to claim 1, characterized in that: The valve pushing mechanism (4) and the connecting rod (41) are movably connected. The upper valve (3) is movably connected to the valve pushing mechanism (4) via the connecting rod (41). The valve pushing mechanism (4) is movably connected to the lower valve (31) via the connecting rod (41).

5. A modular device for a medium-voltage circuit breaker compartment according to claim 1, characterized in that: The lower end of the partition plate (2) is movably connected to a grounding switch (7), the surface of the partition plate (2) is movably connected to a lower contact box (8), the upper end of the partition plate (2) is movably connected to an upper contact box (9), and the surface of the outer frame (1) is movably connected to a circuit breaker (10).

6. A modular device for a medium-voltage circuit breaker compartment according to claim 5, characterized in that: The grounding switch (7) is movably connected to the outer frame (1) through the middle partition (2), and the lower contact box (8) is movably connected below the upper contact box (9). The lower contact box (8) is movably connected to the upper contact box (9) through the middle partition (2).

7. A modular device for a medium-voltage circuit breaker compartment according to claim 5, characterized in that: The circuit breaker (10) is movably connected through the outer frame (1) and the middle partition (2), and the circuit breaker (10) is movably connected through the outer frame (1) and the grounding switch (7).

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