Power distribution cabinet with built-in protective safety inner door

Abstract

The utility model belongs to the technical field of power distribution cabinets, particularly relates to a power distribution cabinet with a built-in protective safety inner door, and aims to solve the problems that after a cabinet door of the power distribution cabinet is opened, internal elements and circuits of the power distribution cabinet are directly exposed, operators are easy to accidentally contact with live parts, and electric shock and fire risks are increased. A cabinet door is rotatably mounted at a cabinet opening of the cabinet body, the cabinet door is locked with the cabinet body through a door lock, a mounting frame is fixedly arranged on the inner wall of the cabinet body, and a plurality of rows of wiring terminals and a main circuit breaker are mounted on the mounting frame. According to the utility model, the internal electric elements and circuits are directly exposed, the risks of electric shock and fire are greatly reduced, and the inner protective door is made of corrosion-resistant light aluminum materials and is covered with an epoxy resin insulating coating, so that the durability and the corrosion resistance of the protective door are improved, and the insulating property of the protective door is further enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of distribution cabinets, in particular to a distribution cabinet with a built-in protective safety inner door. Background Technique

[0002] A distribution cabinet (also known as a distribution panel, distribution box or switch cabinet) is a key component in an electrical system for distributing, controlling and protecting electricity. They are usually installed in buildings, factories, commercial facilities and other places where power supply is required. The main functions of a distribution cabinet include distributing the main power supply (usually from a transformer or generator) to different circuits and loads, and preventing circuit overload, short circuit and ground fault through circuit breakers, fuses and other protection devices.

[0003] After retrieval, a distribution cabinet with a safety protection structure disclosed in the patent with the publication number of CN220086648U relates to the technical field of distribution cabinets. After the cabinet door of this distribution cabinet is opened, its internal components and circuits are directly exposed, which easily causes operators to accidentally touch live parts, thus increasing the risks of electric shock and fire.

[0004] In view of the above problems, the utility model document proposes a distribution cabinet with a built-in protective safety inner door. Content of the Utility Model

[0005] The utility model provides a distribution cabinet with a built-in protective safety inner door, which solves the defect that in the prior art, after the cabinet door of the distribution cabinet is opened, its internal components and circuits are directly exposed, which easily causes operators to accidentally touch live parts, thus increasing the risks of electric shock and fire.

[0006] The utility model provides the following technical solutions:

[0007] A distribution cabinet with a built-in protective safety inner door, comprising:

[0008] A cabinet body, on which a cabinet door is rotatably installed at the cabinet opening, the cabinet door is locked with the cabinet body through a door lock, an installation rack is fixedly arranged on the inner wall of the cabinet body, and multiple rows of terminal blocks and a main circuit breaker are installed on the installation rack;

[0009] An inner protection component, arranged inside the cabinet body, for preventing its internal components and circuits from being directly exposed after the cabinet door is opened, thereby reducing the risks of electric shock and fire;

[0010] A heat dissipation component, arranged inside the cabinet body, for improving the air circulation inside the cabinet body.

[0011] In a possible design, the inner protection component includes an inner protection door rotatably installed on the inner wall of the cabinet body, a through hole for a corresponding component control switch to pass through is arranged on the inner protection door, and a handle for facilitating the opening and closing of the inner protection door is arranged on the surface of the inner protection door.

[0012] In a possible design, the heat dissipation component includes four ventilation openings symmetrically arranged on both sides of the cabinet body. Heat dissipation fans are embedded in the ventilation openings, and the wind directions of the four heat dissipation fans are the same.

[0013] In a possible design, the inner protection door is made of corrosion-resistant lightweight aluminum.

[0014] In a possible design, the surface of the inner protection door is covered with an epoxy resin insulating coating for improving the use safety.

[0015] In a possible design, a manual control button for manually cutting off the power supply is arranged on the mounting rack.

[0016] It should be understood that the above general description and the following detailed description are only exemplary and cannot limit the present utility model.

[0017] The working principle and the usage process of this technical solution are as follows:

[0018] When in use, when the power distribution cabinet is in the closed state, the cabinet door is tightly locked with the cabinet body through the door lock, and the inner protection door is also in the closed state, protecting the internal electrical components and circuits from being directly exposed. At this time, the heat dissipation fan may be in the standby or low-speed operation state to maintain the basic air circulation inside the cabinet body. When it is necessary to maintain or check the inside of the power distribution cabinet, the operator uses a key or other unlocking methods to open the door lock, and then turns the cabinet door to open it. At this time, the inner protection door still remains in the closed state, continuing to provide additional safety protection. The through holes on the inner protection door allow the operator to access the components or switches that need to be operated, while maintaining the safety isolation of other areas;

[0019] The operator holds the handle on the inner protection door and easily turns the inner protection door to open it. In the state where the inner protection door is open, the operator can safely access electrical components such as terminal blocks and main circuit breakers for necessary maintenance, inspection or adjustment. If it is necessary to cut off the power supply emergently, the manual control button on the mounting rack can be pressed. After the maintenance or inspection is completed, the operator turns the inner protection door again to close it, ensuring that the internal components and circuits are protected again. Finally, the operator closes and relocks the cabinet door, and the power distribution cabinet returns to the initial safe state.

[0020] The present utility model has the following beneficial effects:

[0021] The utility model effectively avoids the direct exposure of internal electrical components and circuits after the cabinet door is opened through the built-in inner protection door, greatly reducing the risks of electric shock and fire, improving the safety of operators. Moreover, the inner protection door is made of corrosion-resistant lightweight aluminum and covered with an epoxy resin insulating coating, which not only improves the durability and corrosion resistance of the protection door but also further enhances its insulation performance, ensuring electrical safety.

[0022] In the utility model, the heat dissipation component effectively improves the air circulation inside the cabinet body through four symmetrically arranged ventilation openings and the embedded heat dissipation fans, reduces the working temperature of the electrical components, and extends the service life of the equipment. Description of the Drawings

[0023] Figure 1 It is a three-dimensional structural schematic diagram of a power distribution cabinet with a built-in protective safety inner door provided by an embodiment of the utility model;

[0024] Figure 2 It is a structural schematic diagram of another perspective of a power distribution cabinet with a built-in protective safety inner door provided by an embodiment of the utility model;

[0025] Figure 3 It is a structural schematic diagram of the cabinet door and the inner protection door opening of a power distribution cabinet with a built-in protective safety inner door provided by an embodiment of the utility model;

[0026] Figure 4 It is a structural schematic diagram of the inside of the cabinet body of a power distribution cabinet with a built-in protective safety inner door provided by an embodiment of the utility model.

[0027] Reference numerals: 1, cabinet body; 2, cabinet door; 3, door lock; 4, mounting rack; 5, terminal block; 6, main circuit breaker; 7, manual control button; 8, inner protection door; 9, handle; 10, through hole; 11, ventilation opening; 12, heat dissipation fan. Detailed Embodiment

[0028] Next, the technical solutions in the embodiments of the utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the protection scope of the utility model.

[0029] In the description of the present utility model, it should be understood that terms such as "opening", "upper", "middle", "length", "inner", etc. indicating orientation or positional relationships are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0030] To keep the following description of the embodiments of the present utility model clear and concise, detailed descriptions of known functions and known components are omitted.

[0031] Embodiment 1

[0032] Please refer to Figures 1-4 , a power distribution cabinet with an internal protective safety inner door, which is applied in the field of power distribution cabinets and includes:

[0033] Cabinet body 1, which is made of strong and durable metal materials to ensure its structural strength and protection performance. At the cabinet opening of the cabinet body 1, a cabinet door 2 is installed through a rotating device such as a hinge. The cabinet door 2 is tightly locked with the cabinet body 1 through a door lock 3 to prevent unauthorized personnel from opening it at will;

[0034] On the inner wall of the cabinet body 1, a mounting rack 4 is fixedly arranged. The mounting rack 4 is used to support and fix the electrical components inside the power distribution cabinet. On the mounting rack 4, multiple rows of terminal blocks 5 and a main circuit breaker 6 are installed. These components together constitute the core electrical system of the power distribution cabinet and ensure the safe operation of the electrical system through the zero and ground buses. Among them, the 4 circuits formed by the terminal blocks 5 are 400A, 400A, 250A, 250A (leakage parameter: 150mA × 0.1s) respectively. To facilitate quickly cutting off the power supply in case of emergency, a manual control button 7 is also arranged on the mounting rack 4, and the operator can quickly cut off the power supply of the entire power distribution cabinet by pressing this button;

[0035] To improve the safety of the power distribution cabinet, an internal protection component is arranged inside the cabinet body 1. The internal protection component mainly includes an internal protection door 8 rotatably installed on the inner wall of the cabinet body 1. The internal protection door 8 is made of corrosion-resistant lightweight aluminum, which not only ensures sufficient strength and durability but also reduces the overall weight for easy operation. On the internal protection door 8, multiple through holes 10 are arranged. The positions and sizes of these through holes 10 are carefully designed to ensure that key components inside the power distribution cabinet such as control switches can pass through, while not affecting the protection effect of the internal protection door 8. In addition, a handle 9 is arranged on the surface of the internal protection door 8 to facilitate the operator to open and close the internal protection door 8;

[0036] In order to further improve the safety of use of the distribution cabinet, a layer of epoxy resin insulation coating is covered on the surface of the inner protection door 8. This coating has good insulation performance and can effectively prevent current from being conducted to the operator through the inner protection door 8, thus greatly reducing the electric shock risk.

[0037] Embodiment 2

[0038] Improved on the basis of Embodiment 1:

[0039] Please refer to Figures 3-4 , in terms of heat dissipation, four ventilation openings 11 are symmetrically arranged on both sides of the cabinet body 1. A heat dissipation fan 12 is embedded and installed in each ventilation opening 11. The wind directions of these four heat dissipation fans 12 are the same. By starting them simultaneously, effective air convection can be formed to accelerate the air circulation inside the cabinet body 1, thereby effectively reducing the working temperature of the components inside the distribution cabinet and improving the heat dissipation performance of the distribution cabinet.

[0040] However, as is well known to those skilled in the art, the working principles and wiring methods of the main circuit breaker 6 and the heat dissipation fan 12 are common knowledge. They both belong to conventional means or well-known common sense and will not be elaborated here. Those skilled in the art can make any selection according to their needs or convenience.

[0041] The above is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model can easily think of changes or substitutions, which should all be covered within the protection scope of the present utility model; without conflict, the embodiments of the present utility model and the features in the embodiments can be combined with each other. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims

1. A power distribution cabinet with a built-in protective safety inner door, characterized in that: include: A cabinet body (1), a cabinet door (2) being rotatably mounted at a cabinet opening of the cabinet body (1), the cabinet door (2) being locked to the cabinet body (1) via a door lock (3), a mounting frame (4) being fixedly mounted on an inner wall of the cabinet body (1), and a plurality of rows of wiring terminals (5) and a main circuit breaker (6) being mounted on the mounting frame (4); An internal protection component is arranged in the cabinet body (1) and is used to prevent the internal components and circuits thereof from being directly exposed after the cabinet door (2) is opened, thereby reducing the risk of electric shock and fire; The heat dissipation component is arranged in the cabinet (1) and is used to improve the air circulation inside the cabinet (1).

2. A power distribution cabinet with a built-in protective safety inner door according to claim 1, characterized in that: The inner protection assembly comprises an inner protection door (8) rotatably mounted on the inner wall of the cabinet (1), the inner protection door (8) being provided with a through hole (10) for a corresponding component operating switch to pass through, and a handle (9) for facilitating opening and closing of the inner protection door (8) being provided on the surface of the inner protection door (8).

3. A power distribution cabinet with a built-in protective safety inner door according to claim 1, characterized in that: The heat dissipation component comprises four ventilation openings (11) symmetrically arranged on both sides of the cabinet (1), and a heat dissipation fan (12) is embedded and installed in the ventilation opening (11), and the wind directions of the four heat dissipation fans (12) are consistent.

4. A power distribution cabinet with a built-in protective safety inner door according to claim 2, characterized in that: The inner protective door (8) is made of corrosion-resistant lightweight aluminum.

5. A power distribution cabinet with a built-in protective safety inner door according to claim 2, characterized in that: The surface of the inner protective door (8) is covered with an epoxy resin insulating coating for improving safety in use.

6. A power distribution cabinet with a built-in protective safety inner door according to claim 1, characterized in that: The mounting frame (4) is provided with a manual control button (7) for manually cutting off the power supply.

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