Module combined type high-voltage cabinet with high protection function

Abstract

The utility model relates to the technical field of high-voltage cabinets, in particular to a module combined type high-voltage cabinet with a high protection function, which comprises a cabinet body, a cavity with an opening at the front end is arranged in the cabinet body, a guide groove is arranged at the top end of the cabinet body, and a guide support block longitudinally opposite to the guide groove is arranged at the bottom of the cabinet body. Mounting plates are arranged at the four corners in the cavity, a protection plate is slidably mounted between every two adjacent mounting plates, one end of each protection plate is connected with the inner wall of the cavity in a sealed mode, and an inner cavity is formed in each protection plate and filled with a heat insulation medium; according to the utility model, the protective plates are arranged on the peripheral side walls of the cavity of the cabinet body, the protective plates are provided with the inner cavities, and the closed spaces capable of being filled with the heat insulation media are formed between the inner cavities and the side walls of the cavity, so that the protective plates can have heat insulation and protection effects; the heat of a single cabinet body is effectively prevented from interfering with adjacent cabinet bodies, and electrical equipment is protected from being influenced by high temperature.

Description

A modular high-voltage switchgear with high protection function Technical Field

[0001] This utility model relates to the field of high voltage switchgear technology, and in particular to a modular high voltage switchgear with high protection function. Background Technology

[0002] Modular high-voltage switchgear is widely used in modern power systems. By combining and installing multiple high-voltage switchgear modules, it can meet the needs of centralized large-scale power control and distribution, and has the advantages of high flexibility and strong scalability.

[0003] Currently, when multiple modular high-voltage switchgear units are used together, the protective isolation between the individual units is poor, especially the thermal insulation performance. This makes it easy for the heat generated by the electrical equipment inside a single unit to be conducted to adjacent units, causing the internal temperature of adjacent units to rise. This can affect the normal operation and service life of the electrical equipment, and in severe cases, may even lead to equipment failure and safety accidents. Summary of the Invention

[0004] The purpose of this invention is to provide a modular high-voltage switchgear with high protection function to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A modular high-voltage switchgear with high protection function includes a cabinet body. The cabinet body has a chamber with an opening at the front end. The top of the cabinet body has a guide groove, and the bottom of the cabinet body has a guide support block that is longitudinally opposite to the guide groove. The four corners of the chamber body have mounting plates. A protective plate is slidably installed between two adjacent mounting plates. One end of the protective plate is sealed to the inner wall of the chamber body. The protective plate has an inner cavity filled with a heat insulation medium.

[0007] Preferably, the rear end of the cabinet is provided with a fixing plate, and the fixing plate is provided with multiple cable inlet holes, which are connected to the cavity.

[0008] Preferably, the rear end of the cabinet is provided with a rear cabinet door located below the fixed plate. One side of the rear cabinet door is movably hinged to one side of the cabinet. A cooling fan is installed on the rear cabinet door, and a grid is provided between the rear cabinet door and the cooling fan, penetrating the rear cabinet door.

[0009] Preferably, the front of the cabinet is provided with a front cabinet door, one side of which is hinged to one side of the front side wall of the cabinet, and the front cabinet door is provided with an observation window.

[0010] Preferably, one end of the mounting plate is fixedly connected to the included angle formed between two adjacent inner walls of the chamber, and the other end of the mounting plate extends from one inner wall toward the opening end parallel to two adjacent side walls of the chamber. A fixing groove is formed between the opposing fixing strips between two adjacent mounting plates, and the protective plate is slidably connected to the fixing groove.

[0011] Preferably, the protective plate has an inner cavity with one open end, and the open end of the protective plate has an outer frame that is slidably connected to the fixing groove around the inner cavity.

[0012] Preferably, a sealing strip is fixedly installed on the end of the outer frame that connects to the inner wall of the cavity.

[0013] Preferably, the bottom wall of the inner cavity of the protective plate and the outer wall of the protective plate opposite to the inner cavity are provided with a plurality of expansion grooves that are concave along the end face.

[0014] Preferably, the protective plate has a filling port on the front side of the cabinet, one end of the filling port is connected to the inner cavity, and the other end is connected to an end cap by a thread.

[0015] Compared with the prior art, this utility model provides a modular high-voltage switchgear with high protection function, which has the following beneficial effects:

[0016] 1. This utility model provides a protective plate on the four side walls of the cabinet cavity. The protective plate has an inner cavity, and a closed space that can be filled with heat insulation medium is formed between the inner cavity and the side wall of the cavity. This allows the protective plate to have a heat insulation and protection function. In the layout of multiple cabinets, it effectively prevents the heat of a single cabinet from interfering with the heat of adjacent cabinets and protects electrical equipment from high temperature.

[0017] 2. This utility model features an installation plate that is slidably connected to the protective plate, making the installation and disassembly of the protective plate more convenient and improving the ease of equipment maintenance. The protective plate is provided with an expansion groove to prevent excessive deformation of the protective plate after being heated, which would cause the heat insulation and protection effect to fail. The protective plate is also provided with a filling port that communicates with the inner cavity, making it convenient to fill with heat insulation medium and ensuring the heat insulation and protection performance of the protective plate. Attached Figure Description

[0018] Figure 1 is a three-dimensional structural schematic diagram of this utility model;

[0019] Figure 2 is a three-dimensional structural schematic diagram (second view) of this utility model;

[0020] Figure 3 is a three-dimensional schematic diagram of the cabinet structure of this utility model;

[0021] Figure 4 is a three-dimensional schematic diagram of the cabinet structure of this utility model (second perspective).

[0022] Figure 5 is a front view structural diagram of the cabinet of this utility model;

[0023] Figure 6 is a three-dimensional schematic diagram of the protective plate structure of this utility model;

[0024] Figure 7 is a three-dimensional schematic diagram (second perspective) of the protective plate structure of this utility model.

[0025] In the diagram: 1. Cabinet body; 11. Chamber; 2. Rear cabinet door; 21. Cooling fan; 22. Grille; 3. Protective plate; 31. Inner cavity; 32. Sealing strip; 33. Expansion groove; 34. Filling port; 4. Mounting plate; 41. Clip strip; 42. Fixing groove; 5. Front cabinet door; 51. Observation window; 6. Guide support block; 7. Guide groove; 8. Fixing plate; 81. Cable inlet hole. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0027] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] Example: Referring to Figures 1-7, a modular high-voltage switchgear with high protection function includes a cabinet 1. The cabinet 1 has a chamber 11 with an opening at the front end. The top of the cabinet 1 has a guide groove 7, and the bottom of the cabinet 1 has a guide support block 6 that is longitudinally opposite to the guide groove 7. The four corners of the chamber 11 have mounting plates 4. A protective plate 3 is slidably installed between two adjacent mounting plates 4. One end of the protective plate 3 is sealed to the inner wall of the chamber 11. The protective plate 3 has an inner cavity 31 filled with a heat insulation medium. In use, the protective plate 3 is sealed to the inner wall of the cabinet 1, and the heat insulation medium filled in the inner cavity 31 of the protective plate 3 forms a chamber 11 with heat insulation protection function inside the high-voltage switchgear. Thus, when multiple cabinets 1 are combined, the heat generated inside any one cabinet 1 during operation will not interfere with the other cabinets 1 combined with it, thereby independently protecting the electrical equipment inside any cabinet 1 from the influence of external high temperature.

[0029] Furthermore, a fixing plate 8 is provided at the rear end of the cabinet 1. The fixing plate 8 is provided with multiple inlet holes 81, which are connected to the chamber 11. In use, it provides a channel for the entry and exit of electrical lines, making it convenient for external lines to be connected to the equipment inside the high-voltage cabinet.

[0030] Furthermore, a rear cabinet door 2 is provided at the rear end of the cabinet 1 below the fixed plate 8. One side of the rear cabinet door 2 is hinged to one side of the cabinet 1. A cooling fan 21 is installed on the rear cabinet door 2. A grid 22 is provided between the rear cabinet door 2 and the cooling fan 21, which passes through the rear cabinet door 2. When in use, the cooling fan 21 runs, and external air can pass through the grid 22 and enter the chamber 11 of the cabinet 1 to dissipate heat from the equipment installed in the chamber 11 of the cabinet 1, ensuring the normal operation of the equipment.

[0031] Furthermore, the front of the cabinet 1 is provided with a front cabinet door 5, one side of which is hinged to the front side wall of the cabinet 1. The front cabinet door 5 is provided with an observation window 51, which allows personnel to directly observe the operating status of the equipment inside the high voltage cabinet from the outside.

[0032] Furthermore, one end of the mounting plate 4 is fixedly connected to the included angle formed between two adjacent inner walls of the chamber 11, and the other end of the mounting plate 4 extends from one inner wall end toward the opening end parallel to two adjacent side walls of the chamber 11. A retaining strip 41 is provided, and a fixing groove 42 is formed between the corresponding retaining strips 41 between two adjacent mounting plates 4. The protective plate 3 is slidably connected to the fixing groove 42. In use, the protective plate 3 can be slidably installed or removed along the direction of the retaining strip 41 of the mounting plate 4, realizing the mating connection between the protective plate 3 and the mounting plate 4, facilitating the assembly and disassembly of the protective plate 3, and ensuring that the protective plate 3 can be stably positioned in the corresponding position after installation, thus ensuring the integrity of the internal protective structure of the high-voltage cabinet.

[0033] Furthermore, the protective plate 3 has an inner cavity 31 with one open end for filling with heat insulation medium. The open end of the protective plate 3 is surrounded by an outer frame that is slidably connected to the fixing groove 42. The outer frame is slidably connected to the fixing groove 42 to facilitate the disassembly or assembly of the protective plate 3.

[0034] Furthermore, a sealing strip 32 is fixedly installed on one end of the outer frame that connects to the inner wall of the chamber 11. In use, the sealing strip 32 is preferably made of elastic rubber material, so that one end of the sealing strip 32 is in close contact with the side wall of the chamber 11, thereby forming a seal between the protective plate 3 and the inner wall of the chamber 11, preventing the leakage of the heat insulation medium and the resulting decrease in the heat insulation capacity of the protective plate 3. The other end has an outward elastic force on the outer frame, so that the outer frame is subjected to elastic force when connected to the snap-fit ​​strip 41, thereby increasing the friction between the outer frame and the snap-fit ​​strip 41 and preventing the protective plate 3 from slipping off.

[0035] Furthermore, the bottom wall of the inner cavity 31 of the protective plate 3 and the outer wall of the protective plate 3 relative to the inner cavity 31 are provided with several expansion grooves 33 that are concave along the end face. When the protective plate 3 is affected by factors such as temperature changes and expands or contracts during use, the expansion grooves 33 can provide deformation space to prevent the protective plate 3 from being damaged due to excessive stress.

[0036] Furthermore, the protective plate 3 is provided with a filling port 34 on the front side of the cabinet 1. One end of the filling port 34 is connected to the inner cavity 31, and the other end is connected to an end cap by a thread. When in use, heat insulation medium can be filled into the inner cavity 31 of the protective plate 3 to ensure that the protective plate 3 has good heat insulation and protection performance. The end cap is connected to the filling port 34 by a thread, which facilitates the filling operation and ensures that the filling port 34 has good sealing performance when not in use.

[0037] Working principle: Multiple cabinets 1 are stacked and arranged in the electrical control room according to requirements. The cabinets 1 are precisely connected by adjacent guide grooves 7 and guide support blocks 6. Each cabinet 1 has a protective plate 3 inside. The protective plate 3 slides into the fixing groove 42 along the snap-fit ​​strip 41 of the mounting plate 4, ensuring that the sealing strip 32 is tightly attached to the side wall of the chamber 11. This forms a closed space between the inner cavity 31 of the protective plate 3 and the side wall of the cabinet 1, which is used to fill the heat insulation medium. The heat insulation medium is filled into the inner cavity 31 of the protective plate 3 through the filling port 34. The heat insulation medium is preferably a gel-like material with high specific heat capacity, poor fluidity, and stable state. The filling port 34 is sealed and not prone to leakage. After filling, the end cap is tightened to ensure that the filling port 34 is sealed. The electrical circuit is connected to the cabinet through the inlet hole 81 of the fixed plate 8 and connected to the corresponding electrical equipment. During operation, the heat insulation medium in the protective plate 3 effectively blocks the heat generated by the equipment in the cabinet from being conducted to the adjacent cabinet 1, so that each cabinet 1 forms an independent heat insulation space to avoid mutual interference, thereby ensuring the normal operation of the equipment in each cabinet 1. Each cabinet 1 is equipped with a cooling fan 21 on the rear cabinet door 2, which automatically starts and stops according to the temperature in the corresponding cabinet 1 chamber 11. When the temperature rises, the cooling fan 21 introduces cold air from outside into the cabinet to dissipate heat from the electrical equipment.

[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A modular high-voltage switchgear with high protection function, comprising a cabinet (1), characterized in that, The cabinet (1) has a cavity (11) with an opening at the front end. The top of the cabinet (1) has a guide groove (7). The bottom of the cabinet (1) has a guide support block (6) that is longitudinally opposite to the guide groove (7). The four corners of the cavity (11) have mounting plates (4). A protective plate (3) is slidably installed between two adjacent mounting plates (4). One end of the protective plate (3) is sealed to the inner wall of the cavity (11). The protective plate (3) has an inner cavity (31) inside. The inner cavity (31) is filled with a heat insulation medium.

2. A modular high-voltage switchgear with high protection function according to claim 1, characterized in that, The cabinet (1) has a fixing plate (8) at the rear end, and the fixing plate (8) has multiple inlet holes (81) that are connected to the chamber (11).

3. A modular high-voltage switchgear with high protection function according to claim 2, characterized in that, The rear end of the cabinet (1) is provided with a rear cabinet door (2) located below the fixed plate (8). One side of the rear cabinet door (2) is movably hinged to one side of the cabinet (1). A cooling fan (21) is installed on the rear cabinet door (2). A grid (22) is provided between the rear cabinet door (2) and the cooling fan (21) and passes through the rear cabinet door (2).

4. A modular high-voltage switchgear with high protection function according to claim 3, characterized in that, The cabinet (1) has a front door (5) at the front end. One side of the front door (5) is hinged to the front side wall of the cabinet (1). The front door (5) has an observation window (51).

5. A modular high-voltage switchgear with high protection function according to claim 1, characterized in that, One end of the mounting plate (4) is fixedly connected to the included angle formed between the two adjacent inner walls of the chamber (11). The other end of the mounting plate (4) extends from one end of the inner wall toward the opening end parallel to the two adjacent side walls of the chamber (11). A fixing groove (42) is formed between the opposing fixing grooves (41) between two adjacent mounting plates (4). The protective plate (3) is slidably connected to the fixing groove (42).

6. A modular high-voltage switchgear with high protection function according to claim 5, characterized in that, The protective plate (3) has an inner cavity (31) with one end open, and the open end of the protective plate (3) is surrounded by an outer frame that is slidably connected to the fixing groove (42).

7. A modular high-voltage switchgear with high protection function according to claim 6, characterized in that, A sealing strip (32) is fixedly installed on one end of the outer frame that connects to the inner wall of the chamber (11).

8. A modular high-voltage switchgear with high protection function according to claim 7, characterized in that, The bottom wall of the inner cavity (31) of the protective plate (3) and the outer wall of the protective plate (3) relative to the inner cavity (31) are provided with several expansion grooves (33) that are concave along the end face.

9. A modular high-voltage switchgear with high protection function according to claim 8, characterized in that, The protective plate (3) is provided with a filling port (34) on one side of the front end of the cabinet (1). One end of the filling port (34) is connected to the inner cavity (31), and the other end is connected to an end cap by a thread.

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