Power distribution cabinet for power distribution network

Abstract

The utility model discloses a power distribution cabinet for a power distribution network, which comprises a cabinet body, the bottom end of the side wall of the cabinet body is provided with an air inlet, the top end of the side wall of the cabinet body is provided with an air outlet, the air inlet and the air outlet are respectively provided with a dustproof net, and hot air rises to form natural convection, so that the heat dissipation effect is improved; a heat exchange net plate is arranged in the cabinet body and located above the air inlet, a semiconductor chilling plate attached to the heat exchange net plate is arranged on the side wall of the cabinet body, a heat exchange assembly is arranged on the outer side of the semiconductor chilling plate, a plurality of flow guide shafts are arranged below the heat exchange net plate, and a flow guide plate is arranged on each flow guide shaft. According to the utility model, the ventilation and heat dissipation effects in the cabinet body can be improved, and the installation flexibility and convenience of electrical elements can be improved.

Description

Technical Field

[0001] This utility model relates to the field of power distribution cabinet technology, and more specifically, to a power distribution cabinet for power distribution networks. Background Technology

[0002] A power distribution cabinet is a specialized device used for distributing, controlling, protecting, and monitoring electrical energy. It is widely used in medium- and low-voltage power distribution networks. Its core functions include receiving and distributing electrical energy, providing short-circuit and overload protection, and load management to ensure the safe, stable, and efficient operation of the power system. Distribution cabinets typically consist of circuit breakers, disconnect switches, fuses, measuring instruments, protective devices, and busbars. Structurally, they are available in fixed and drawer-type configurations, and can be integrated with intelligent modules (such as remote monitoring and automatic fault diagnosis) as needed.

[0003] Distribution cabinets contain a variety of electrical components, which generate a lot of heat during operation. The main heat dissipation method of existing distribution cabinets is to install airflow-driven structures such as exhaust fans and cooling fans inside the cabinet to enhance heat dissipation. However, they cannot actively cool or heat the airflow inside the cabinet, making them unsuitable for operation in hot or cold conditions. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the problems existing in the prior art, this utility model provides a power distribution cabinet for power distribution networks, thereby solving the technical problem mentioned in the background art that the power distribution cabinet for power distribution networks is not convenient for actively cooling or heating the airflow inside.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A power distribution cabinet for power distribution network includes a cabinet body. An air inlet is provided at the bottom of the side wall of the cabinet body, and an air outlet is provided at the top of the side wall. Dustproof nets are provided at both the air inlet and the air outlet. Natural convection is formed by the rising of hot air to improve the heat dissipation effect.

[0009] This utility model provides a heat exchange mesh plate inside the cabinet and above the air inlet. A semiconductor refrigeration chip is attached to the heat exchange mesh plate on the side wall of the cabinet. A heat exchange component is provided on the outside of the semiconductor refrigeration chip. Here, the semiconductor refrigeration chip can be used in conjunction with control elements such as a temperature controller. The relevant circuit structure is existing known technology and will not be described in detail in this utility model.

[0010] This utility model has multiple guide shafts arranged below the heat exchange mesh plate, each guide shaft is provided with a guide plate, a synchronous drive structure is provided between the multiple guide shafts, an activated carbon fiber mesh is provided below the guide plate, and an exhaust fan is provided at the air outlet.

[0011] The present invention is further configured such that mounting vertical plates are provided on both sides of the interior of the cabinet, a first adjustment structure is provided between the mounting vertical plates and the inner wall of the cabinet, a mounting horizontal plate is provided between the two sets of mounting vertical plates, and a second adjustment structure is provided between the two ends of the mounting horizontal plate and the corresponding mounting vertical plate. Through the cooperation of the mounting horizontal plate and the mounting vertical plate, the electrical components in the power distribution network distribution cabinet can be installed and fixed inside the cabinet. The mounting horizontal plate is used to install the relevant electrical components, and the installation of the relevant electrical components on the mounting horizontal plate is a known prior art, which will not be described in detail in this invention.

[0012] The present invention is further configured such that the first adjustment structure includes a mounting slide bar, the mounting slide bar is disposed on the inner side of the cabinet, and mounting sliders are provided at the top and bottom of the mounting vertical plate. The mounting sliders are provided with mounting grooves that cooperate with the mounting slide bar. A first locking member is threaded on the mounting sliders. The inner end of the first locking member extends into the mounting groove and presses against the mounting slide bar. By adjusting the position of the mounting slider on the mounting slide bar, when the mounting vertical plate is adjusted to a suitable position, the first locking member is tightened, so that the inner end of the first locking member presses against the surface of the mounting slide bar. This allows for quick locking and fixing of the mounting slider on the mounting slide bar, thereby realizing the adjustment and locking of the mounting vertical plate inside the cabinet.

[0013] The present invention is further configured such that the second adjusting structure includes a second locking member, the second locking member being threaded at both ends of the mounting horizontal plate, and having a locking block rotatably disposed at its inner end. A locking groove is provided on the mounting vertical plate, through which the locking block can pass, and the length of the locking block is greater than the width of the locking groove. In use, the tail end of the second locking member, carrying the locking block, is passed through the locking groove. Then, the second locking member is tightened, causing it to move the locking block back and press it firmly onto the mounting vertical plate, thereby achieving the locking and fixing of the mounting vertical plate onto the mounting horizontal plate. During this process, initially, the locking block can rotate with the second locking member; when the locking block presses against... When the frictional force on the mounting plate exceeds the rotational driving force of the second locking member, the locking block stops rotating, allowing the second locking member to continue to be tightened, thus increasing the locking force. Here, the second locking member and the locking block can be connected by a limiting groove and a shaft structure. A damping washer can also be used, positioned between the shaft and the groove wall. This is existing known technology and will not be elaborated upon here. Using the above-described mounting structure for the horizontal and vertical mounting plates reduces the use of bolts in existing technologies. Furthermore, it eliminates the need to completely remove the first and second locking members, preventing the loss of these locking components.

[0014] The present invention is further configured such that the synchronous drive structure includes a drive motor, the drive motor is connected to one of the guide shafts, and a synchronous belt drive structure is provided between two adjacent guide shafts. When the drive motor is started, the guide shaft can be controlled to rotate by the cooperation of the drive motor and the synchronous belt drive structure, so that the airflow entering the cabinet through the air inlet can flow upward more evenly, thereby improving the ventilation and heat dissipation effect inside the cabinet.

[0015] The present invention is further configured such that mounting plates are provided at both ends of the guide shaft, and the mounting plates are connected to the guide shaft via bearings. The cabinet has an installation port, and the mounting plates are sealed and installed at the installation port. By installing the mounting plates at the installation port, the guide shaft can be detachably installed on the cabinet, thereby facilitating the disassembly and maintenance of the guide shaft, guide plates, and other related components within the cabinet. The sealing between the mounting plates and the installation port can be achieved through sealing gaskets, etc. One of the mounting plates is larger than the other, which facilitates installation from one end to the other. The larger mounting plate is selectively locked and fixed to the cabinet via bolts, etc.

[0016] The present invention is further configured such that the heat exchange component includes a heat exchange plate, the heat exchange plate is attached to the semiconductor refrigeration chip, and the surface of the heat exchange plate is provided with heat exchange fins, so that heat can be exchanged at its outer end during the operation of the semiconductor refrigeration chip, thereby improving the operating effect of the semiconductor refrigeration chip.

[0017] The present invention is further configured such that a heat-conducting mounting bracket is provided at the inner end of the semiconductor cooling chip, and an installation groove is provided on the heat-conducting mounting bracket. The heat exchange mesh plate is fitted and slidably disposed in the installation groove. This facilitates the detachable connection between the heat exchange mesh plate and the semiconductor cooling chip, thereby facilitating the disassembly of the heat exchange mesh plate inside the cabinet. The heat-conducting mounting bracket is made of materials with good thermal conductivity, such as aluminum, copper, or thermally conductive ceramics, which can be selected according to insulation requirements, or other composite materials available on the market.

[0018] (III) Beneficial Effects

[0019] Compared with the prior art, this utility model provides a power distribution cabinet for power distribution networks, which has the following beneficial effects:

[0020] 1. This utility model includes a cabinet. An air inlet is located at the bottom of the side wall of the cabinet, and an air outlet is located at the top of the side wall. Dustproof nets are installed at both the air inlet and outlet, and an exhaust fan is installed at the outlet. A heat exchange mesh plate is installed inside the cabinet, above the air inlet. A semiconductor cooling chip is attached to the heat exchange mesh plate on the side wall of the cabinet, and a heat exchange component is installed outside the semiconductor cooling chip. By combining the semiconductor cooling chip and the heat exchange mesh plate, the direction of the current can be adjusted during operation, allowing the heat exchange mesh plate to flexibly switch between heating and cooling properties. This allows for heating the airflow when it is necessary to insulate the electrical components inside the cabinet during cold winters, while simultaneously drying the airflow through heating, thus improving the moisture-proof effect inside the cabinet. Conversely, it allows for cooling the airflow when it is necessary to cool the inside of the cabinet during hot summers, improving the heat dissipation and cooling effect of the electrical components during operation.

[0021] 2. This utility model has multiple guide shafts below the heat exchange mesh plate, each with a guide plate. A synchronous drive structure is provided between the multiple guide shafts. During ventilation inside the distribution cabinet, the drive motor is started. Through the cooperation of the drive motor and the synchronous belt transmission structure, the guide shafts can be controlled to rotate, guiding the airflow. This allows the airflow entering the cabinet through the air inlet to flow upward more evenly, thereby improving the ventilation and heat dissipation effect inside the cabinet. Here, the drive motor can control the guide shafts to rotate back and forth, improving the guiding effect.

[0022] 3. This utility model has an activated carbon fiber mesh installed below the baffle plate. The activated carbon fiber mesh can be used as an innovative auxiliary means to absorb moisture, purify the air and inhibit corrosive gases, thereby further improving the moisture-proof effect of the electrical components inside the cabinet. Attached Figure Description

[0023] Figure 1This is a cross-sectional view of the overall structure of a power distribution cabinet for power distribution networks according to this utility model;

[0024] Figure 2 This is an exploded cross-sectional view of the overall structure of this utility model;

[0025] Figure 3 This is a schematic diagram of the connection structure between the heat exchange mesh plate, the semiconductor refrigeration chip, the heat exchange plate and the heat exchange fins in this utility model.

[0026] Figure 4 This is a schematic diagram of the installation structure of the vertical plate and the horizontal plate in this utility model;

[0027] Figure 5 This is a schematic diagram of the connection structure between the mounting plate and the locking block in this utility model;

[0028] Figure 6 This is a cross-sectional view of the mounting plate, the guide shaft, and the mounting structure between the guide plate in this utility model.

[0029] In the diagram: 1. Cabinet; 2. Air inlet; 3. Air outlet; 4. Dustproof mesh; 5. Heat exchange mesh plate; 6. Semiconductor cooling chip; 7. Guide shaft; 8. Guide plate; 9. Activated carbon fiber mesh; 10. Exhaust fan; 11. Mounting vertical plate; 12. Mounting horizontal plate; 13. Mounting slide bar; 14. Mounting slider; 15. Mounting slide groove; 16. First locking element; 17. Second locking element; 18. Locking block; 19. Locking groove; 20. Drive motor; 21. Synchronous belt drive structure; 22. Mounting plate; 23. Mounting port; 24. Heat exchange plate; 25. Heat exchange fins; 26. Heat-conducting mounting bracket; 27. Mounting groove. Detailed Implementation

[0030] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0031] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0032] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0033] Please see Figures 1-6A power distribution cabinet for power distribution networks includes a cabinet body 1. An air inlet 2 is located at the bottom of the side wall of the cabinet body 1, and an air outlet 3 is located at the top of the side wall. Dustproof nets 4 are installed at both the air inlet 2 and the air outlet 3. Natural convection is formed by the rising of hot air to improve heat dissipation. A heat exchange mesh plate 5 is installed inside the cabinet body 1 and above the air inlet 2. A semiconductor cooling chip 6 is attached to the heat exchange mesh plate 5 on the side wall of the cabinet body 1. A heat exchange component is installed on the outside of the semiconductor cooling chip 6. Multiple guide shafts 7 are located below the heat exchange mesh plate 5. Each guide shaft 7 is equipped with a guide plate 8. A synchronous drive structure is provided between the multiple guide shafts 7. An activated carbon fiber mesh 9 is installed below the guide plate 8. An exhaust fan 10 is installed at the air outlet 3.

[0034] Please see Figures 1-6 As one embodiment of the cabinet 1: Vertical mounting plates 11 are provided on both sides of the interior of the cabinet 1. A first adjustment structure is provided between the vertical mounting plates 11 and the inner wall of the cabinet 1. A horizontal mounting plate 12 is provided between the two sets of vertical mounting plates 11. A second adjustment structure is provided between the two ends of the horizontal mounting plate 12 and the corresponding vertical mounting plate 11. Through the cooperation of the horizontal mounting plate 12 and the vertical mounting plate 11, the electrical components in the power distribution network distribution cabinet can be installed and fixed inside the cabinet 1. The horizontal mounting plate 12 is used to install the relevant electrical components, and the installation of the relevant electrical components on the horizontal mounting plate 12 is a known prior art, which will not be elaborated upon in this utility model.

[0035] The first adjustment structure includes a mounting slide 13, which is located inside the cabinet 1. Mounting sliders 14 are provided at the top and bottom of the mounting vertical plate 11. Mounting sliders 14 have mounting grooves 15 that cooperate with the mounting slide 13. A first locking member 16 is threaded onto the mounting slider 14, with its inner end extending into the mounting groove 15 and pressing against the mounting slide 13. Adjusting the position of the mounting slider 14 on the mounting slide 13 allows the mounting vertical plate 11 to be adjusted to a suitable position. Tightening the first locking member 16 causes its inner end to press against the surface of the mounting slide 13, thus enabling the mounting slider 14 to be quickly locked and fixed on the mounting slide 13. This achieves both adjustment and locking of the mounting vertical plate 11 inside the cabinet 1.

[0036] Furthermore, the second adjustment structure includes a second locking member 17, which is threaded at both ends of the mounting horizontal plate 12, and has a locking block 18 rotatably mounted on its inner end. A locking groove 19 is provided on the mounting vertical plate 11, through which the locking block 18 can pass. The length of the locking block 18 is greater than the width of the locking groove 19. In use, the tail end of the second locking member 17, carrying the locking block 18, is passed through the locking groove 19. Then, the second locking member 17 is tightened, causing it to move the locking block 18 back and press it firmly onto the mounting vertical plate 11, thus achieving the locking and fixing of the mounting vertical plate 11 onto the mounting horizontal plate 12. Initially, the locking block 18 can rotate with the second locking member 17. When the locking block 18 abuts against… When the friction force on the mounting vertical plate 11 exceeds the rotational driving force of the second locking member 17, the locking block 18 stops rotating, allowing the second locking member 17 to continue to be tightened, thus increasing the locking force. Here, the second locking member 17 and the locking block 18 can be achieved by using a limiting groove and shaft structure. At the same time, a damping washer can be used, so that the damping washer is located between the shaft and the groove wall. This is a known prior art, and this utility model will not elaborate on it. By adopting the above-mentioned mounting structure of the mounting horizontal plate 12 and the mounting vertical plate 11, the use of bolt structures in the prior art can be reduced. At the same time, it is not necessary to completely tighten and disassemble the first locking member 16 and the second locking member 17, thus avoiding the loss of the first locking member 16, the second locking member 17 and other related locking components.

[0037] Please see Figures 1-6 As one implementation of the synchronous drive structure: the synchronous drive structure includes a drive motor 20, which is connected to one of the guide shafts 7. A synchronous belt drive structure 21 is provided between two adjacent guide shafts 7. When the drive motor 20 is started, the guide shafts 7 can be controlled to rotate through the cooperation of the drive motor 20 and the synchronous belt drive structure 21, so that the airflow entering the cabinet 1 through the air inlet 2 can flow upward more evenly, thereby improving the ventilation and heat dissipation effect inside the cabinet 1.

[0038] Please see Figures 1-6 As one implementation of the guide shaft 7: mounting plates 22 are provided at both ends of the guide shaft 7. The mounting plates 22 are connected to the guide shaft 7 through bearings. The cabinet 1 has an installation port 23. The mounting plates 22 are sealed and installed at the installation port 23. By installing the mounting plates 22 at the installation port 23, the guide shaft 7 can be detachably installed on the cabinet 1, which facilitates the disassembly and maintenance of the guide shaft 7, guide plate 8 and other related components in the cabinet 1. The seal between the mounting plate 22 and the installation port 23 can be achieved by sealing gaskets, etc. One mounting plate 22 is larger than the other mounting plate 22, which facilitates installation from one end to the other. The larger mounting plate 22 is locked and fixed to the cabinet 1 by bolts, etc.

[0039] Please see Figures 1-6 As one implementation of the heat exchange component: the heat exchange component includes a heat exchange plate 24, which is attached to the thermoelectric cooler 6, and the surface of the heat exchange plate 24 is provided with heat exchange fins 25. During the operation of the thermoelectric cooler 6, heat can be exchanged at its outer end, thereby improving the operating effect of the thermoelectric cooler 6.

[0040] Please see Figures 1-6 As one implementation of the semiconductor cooling chip 6: a heat-conducting mounting bracket 26 is provided at the inner end of the semiconductor cooling chip 6, and a mounting groove 27 is provided on the heat-conducting mounting bracket 26. The heat exchange mesh plate 5 is fitted and slidably disposed in the mounting groove 27. This facilitates the detachable connection between the heat exchange mesh plate 5 and the semiconductor cooling chip 6, thereby facilitating the disassembly of the heat exchange mesh plate 5 inside the cabinet 1. The heat-conducting mounting bracket 26 is made of materials with good thermal conductivity, such as aluminum, copper, or thermally conductive ceramics. It can be selected according to insulation requirements, or other composite materials available on the market. The heat exchange plate 24 and heat exchange fins 25 are the same.

[0041] In summary:

[0042] This utility model includes a cabinet 1. An air inlet 2 is provided at the bottom of the side wall of the cabinet 1, and an air outlet 3 is provided at the top of the side wall. Dustproof nets 4 are provided at both the air inlet 2 and the air outlet 3, and an exhaust fan 10 is provided at the air outlet 3. A heat exchange mesh plate 5 is provided inside the cabinet 1 and above the air inlet 2. A semiconductor cooling chip 6 is attached to the side wall of the cabinet 1 and a heat exchange component is provided on the outside of the semiconductor cooling chip 6. In this way, by using the semiconductor cooling chip 6 and the heat exchange mesh plate 5 together, the direction of the current can be adjusted during operation, so that the heat exchange mesh plate 5 can flexibly switch between heating and cooling properties. Thus, when it is necessary to keep the electrical components inside the cabinet 1 warm in cold winter, the airflow can be heated. At the same time, the internal airflow can be dried by heating, improving the moisture-proof effect inside the cabinet 1. And when it is necessary to cool the inside of the cabinet 1 in hot summer, the airflow can be cooled, improving the heat dissipation and cooling effect of the electrical components during operation.

[0043] This utility model has multiple guide shafts 7 arranged below the heat exchange mesh plate 5, and each guide shaft 7 is equipped with a guide plate 8. A synchronous drive structure is arranged between the multiple guide shafts 7. During the ventilation process inside the cabinet 1 of the power distribution cabinet, the drive motor 20 is started. Through the cooperation of the drive motor 20 and the synchronous belt drive structure 21, the guide shafts 7 can be controlled to drive the guide plates 8 to rotate, thereby guiding the airflow. This allows the airflow entering the cabinet 1 through the air inlet 2 to flow upward more evenly, thereby improving the ventilation and heat dissipation effect inside the cabinet 1. Here, the drive motor 20 can control the guide shafts 7 to drive the guide plates 8 to rotate back and forth, thereby improving the guiding effect.

[0044] The present invention provides an activated carbon fiber mesh 9 below the air guide plate 8. The activated carbon fiber mesh 9 can be used as an innovative auxiliary means to absorb moisture, purify the air and inhibit corrosive gases, thereby further improving the moisture-proof effect of the electrical components inside the cabinet 1.

[0045] In this utility model, the cabinet body 1 may have cabinet doors and other related structures, which are existing known technologies and will not be described in detail here.

[0046] In all the solutions mentioned above, the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although the embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

[0047] In all the solutions mentioned above, those involving the operation of electrical components, unless otherwise specified, are controlled by a controller. Since the devices matched with the controllers are common devices, their control principles and circuit connections are existing, well-known, and mature technologies, and their specific circuit structures will not be described in detail here.

[0048] Of all the solutions mentioned above, those involving motors can be combined with reducers if necessary. The connection structure and working principle between the motor and the reducer are existing known technologies, and this utility model will not elaborate on them.

[0049] Of all the solutions mentioned above, those involving the connection between solar panels and batteries can be equipped with essential accessories such as inverters, battery charging controllers, cables, fuses, and brackets. Their control principles and circuit connections are all existing, well-known, and mature technologies, and their specific circuit structures will not be elaborated here.

Claims

1. A power distribution cabinet for power distribution networks, comprising a cabinet body (1), characterized in that: The cabinet (1) has an air inlet (2) at the bottom of its side wall and an air outlet (3) at the top of its side wall. Dustproof nets (4) are provided at both the air inlet (2) and the air outlet (3). A heat exchange mesh plate (5) is provided inside the cabinet (1) and above the air inlet (2). A semiconductor cooling chip (6) is attached to the heat exchange mesh plate (5) on the side wall of the cabinet (1). A heat exchange component is provided on the outside of the semiconductor cooling chip (6). Multiple guide shafts (7) are provided below the heat exchange mesh plate (5). Each guide shaft (7) is provided with a guide plate (8). A synchronous drive structure is provided between the multiple guide shafts (7). An activated carbon fiber mesh (9) is provided below the guide plate (8). An exhaust fan (10) is provided at the air outlet (3).

2. The power distribution cabinet for power distribution network according to claim 1, characterized in that: The cabinet (1) has mounting vertical plates (11) on both sides inside. A first adjustment structure is provided between the mounting vertical plates (11) and the inner wall of the cabinet (1). A mounting horizontal plate (12) is provided between the two sets of mounting vertical plates (11). A second adjustment structure is provided between the two ends of the mounting horizontal plate (12) and the corresponding mounting vertical plate (11).

3. The power distribution cabinet for power distribution network according to claim 2, characterized in that: The first adjustment structure includes a mounting slide (13), which is located on the inner side of the cabinet (1). The top and bottom of the mounting vertical plate (11) are provided with mounting sliders (14). The mounting sliders (14) are provided with mounting grooves (15) that cooperate with the mounting slides (13). The mounting sliders (14) are provided with a first locking member (16) threaded on them. The inner end of the first locking member (16) extends into the mounting groove (15) and presses against the mounting slide (13).

4. The power distribution cabinet for power distribution network according to claim 3, characterized in that: The second adjustment structure includes a second locking member (17), which is threaded at both ends of the mounting horizontal plate (12) and has a locking block (18) rotatably provided at its inner end. The mounting vertical plate (11) has a locking groove (19) and the locking block (18) can pass through the locking groove (19). The length of the locking block (18) is greater than the width of the locking groove (19).

5. A power distribution cabinet for power distribution networks according to claim 1, characterized in that: The synchronous drive structure includes a drive motor (20), which is connected to one of the guide shafts (7) for transmission, and a synchronous belt drive structure (21) is provided between two adjacent guide shafts (7).

6. The power distribution cabinet for power distribution network according to claim 5, characterized in that: The guide shaft (7) is provided with mounting plates (22) at both ends. The mounting plates (22) are connected to the guide shaft (7) by bearings. The cabinet (1) is provided with an installation port (23). The mounting plates (22) are sealed and installed at the installation port (23).

7. The power distribution cabinet for power distribution network according to claim 1, characterized in that: The heat exchange assembly includes a heat exchange plate (24), which is attached to a semiconductor cooling chip (6), and the surface of the heat exchange plate (24) is provided with heat exchange fins (25).

8. The power distribution cabinet for power distribution network according to claim 1, characterized in that: The inner end of the semiconductor cooling chip (6) is provided with a heat-conducting mounting bracket (26), and the heat-conducting mounting bracket (26) is provided with a mounting groove (27). The heat exchange mesh plate (5) is fitted and slidably disposed in the mounting groove (27).

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