Modular high-low voltage power distribution cabinet

Abstract

The utility model discloses a modular high low voltage power distribution cabinet, its power distribution cabinet body base surface connects sealed door, and is equipped with initiative heat dissipation groove, incoming line hole and outgoing line hole in left and right sides, and the top has the auxiliary heat dissipation groove, and the inside sets up incoming line module, outgoing line module, measurement module through module installation frame, and each module adopts the installation of connecting structure, is convenient for adjustment and maintenance, and the incoming line and outgoing line module are equipped with lightning -resistant structure, can effectively introduce the lightning current into the earth, guarantees the safety, and initiative heat dissipation structure cooperation heat dissipation groove realizes efficient heat dissipation, and the dust screen on heat dissipation groove can prevent dust and also do not affect ventilation, and measurement module can real -time monitoring electric quantity and remote transmission data. The power distribution cabinet passes through the modular design, good heat dissipation and protection, reliable lightning protection and intelligent measurement, improves installation maintenance efficiency, operating stability and power management intelligent level.

Description

Technical Field

[0001] This utility model relates to the field of high and low voltage distribution cabinet technology, specifically a modular high and low voltage distribution cabinet. Background Technology

[0002] Currently, traditional high and low voltage distribution cabinets are typically modular, presenting numerous inconveniences in installation, maintenance, and expansion: 1. Their modular design necessitates disassembly and rewiring of the entire cabinet when electrical components are replaced or added. This process is not only time-consuming and labor-intensive but also causes prolonged power system outages, severely impacting maintenance efficiency and increasing costs. 2. They struggle to meet the diverse needs of different users. Different application scenarios, such as industrial production and commercial offices, have varying requirements for the number of outgoing circuits and the location of metering modules. Traditional distribution cabinets cannot flexibly adjust these requirements, leading to inefficient space utilization and limiting their application scope. 3. In terms of heat dissipation, the ventilation structure is poorly designed, lacking an effective combination of active and auxiliary heat dissipation mechanisms, easily resulting in excessively high internal temperatures, affecting the lifespan and performance of electrical components. Regarding protection, poor sealing performance allows dust and moisture to easily enter, accelerating component aging and malfunctions. 4. Simple lightning protection structures are ineffective against lightning strikes, easily causing equipment damage. Metering functions are limited, mostly local metering, unable to achieve remote real-time monitoring and management, failing to meet the needs of modern power management.

[0003] Therefore, a modular high and low voltage distribution cabinet needs to be designed to solve the problems mentioned above. Utility Model Content

[0004] The purpose of this utility model is to provide a modular high and low voltage distribution cabinet to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A modular high and low voltage distribution cabinet includes a cabinet body. A sealed door is hinged to the base of the cabinet body. Active heat dissipation slots are provided on the left and right sides of the cabinet body. Inlet and outlet ports are respectively provided on the lower left and right sides of the cabinet body. An auxiliary heat dissipation slot is provided on the top of the cabinet body. An inlet module is installed inside the cabinet body on one side of the inlet port, and an outlet module is installed inside the cabinet body on one side of the outlet port. Lightning protection structures are also provided on the inlet and outlet modules. Vertical module mounting frames are provided on the left, middle, and right sides of the cabinet body. Several oblong holes are provided on the module mounting frames. An active heat dissipation structure is also provided on one side of the active heat dissipation slots and mounted on the module mounting frames. The inlet and outlet modules are connected to the module mounting frames via a connecting structure. Metering modules are also fixedly installed between the module mounting frames inside the cabinet body.

[0007] As a preferred embodiment of this utility model, the lightning protection structure includes a conductive post connected to the incoming line module and the outgoing line module on one side, and a grounding plate extending through to the outside of the distribution cabinet on the other side of the conductive post, with the bottom of the grounding plate in contact with the ground.

[0008] As a preferred embodiment of this utility model, the conductive post is made of copper material with high conductivity and its surface is tin-plated to enhance its anti-oxidation and anti-corrosion properties and ensure long-term stable conductivity. The side of the grounding plate that contacts the ground has serrated protrusions to increase the contact area and friction with the ground. At the same time, a high-conductivity resistance-reducing agent can be filled under the grounding plate to reduce the grounding resistance and improve the lightning protection effect. The connection ends of the conductive post with the incoming and outgoing modules are fixedly connected by crimping, and conductive paste is applied to the connection to ensure a tight connection and low resistance, preventing excessive contact resistance during lightning current transmission.

[0009] As a preferred embodiment of this utility model, the active heat dissipation structure includes a fan mounting frame that is fixedly installed on the inner side of the power distribution cabinet by mounting screws and corresponds to the active heat dissipation slot. A rotatable cooling fan is provided inside the fan mounting frame, and the air outlet of the cooling fan is connected to the active heat dissipation slot.

[0010] As a preferred embodiment of this utility model, it also includes a heat-conducting block disposed on one side of the fan mounting frame and away from the active heat dissipation slot. The front and rear ends of the heat-conducting block are provided with studs, and the studs pass through the waist-shaped holes on the module mounting frame and are locked and fixed by fixing nuts.

[0011] As a preferred embodiment of this utility model, the active heat dissipation slot and the auxiliary heat dissipation slot are provided with dustproof nets. The dustproof nets adopt a detachable installation structure, which is convenient for regular cleaning. This can prevent external dust from entering the power distribution cabinet without affecting the heat dissipation and ventilation effect.

[0012] As a preferred embodiment of this utility model, the connection structure includes a U-shaped frame that is fixedly connected to the upper and lower ends of the inlet module and the outlet module by screws. The U-shaped frame is clamped against the module mounting frame and locked in place by mounting bolts passing through the waist-shaped holes.

[0013] As a preferred embodiment of this utility model, the metering module includes a meter body and a signal transmission unit. The meter body is used to monitor the power parameters of the incoming and outgoing lines in real time, and the signal transmission unit is used to transmit the metering data wirelessly or wiredly to an external monitoring terminal for remote monitoring and management.

[0014] As a preferred embodiment of this utility model, a sealing strip is provided between the sealing door and the power distribution cabinet. The sealing strip surrounds the edge of the sealing door, which can effectively prevent dust, moisture and other impurities from entering the interior of the power distribution cabinet and improve the protection level of the power distribution cabinet.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This utility model, through the design of a modular high and low voltage distribution cabinet, achieves the following effects: 1. The cabinet interior is divided into multiple functional modules such as incoming lines, outgoing lines, and metering, with each module connected to the cabinet via standardized interfaces. During installation, maintenance, and expansion, the corresponding module can be operated independently without interfering with the operation of other modules, significantly improving work efficiency and reducing power outage time and maintenance costs; 2. The module size and structural design fully consider space utilization, allowing users to freely combine and adjust module positions according to actual needs, meeting the personalized requirements of different scenarios for the internal layout of the distribution cabinet, and improving versatility and practicality; 3. Active heat dissipation slots, combined with active heat dissipation structures such as fan mounting frames and cooling fans, achieve active ventilation; top auxiliary heat dissipation slots enhance air convection. Meanwhile, the heat-conducting blocks inside the module can conduct heat, optimize the heat dissipation path, effectively reduce the internal temperature of the cabinet, ensure the stable operation of electrical components, and extend their service life; 4. The sealing strip between the sealed door and the cabinet, as well as the removable dustproof net on the heat dissipation groove, can effectively block dust, moisture and other impurities from entering, improve the protection level, and reduce component failures caused by environmental factors; 5. The lightning protection structure on the incoming and outgoing modules uses high-conductivity, tin-plated copper conductive pillars, with the connection ends crimped and coated with conductive paste. The grounding plate has serrated protrusions and can be filled with resistance-reducing agent, which can quickly and efficiently introduce lightning current into the ground, ensuring the safety of equipment and personnel; 6. The connection structure uses a U-shaped frame and mounting bolts to achieve a quick and stable connection between modules and module mounting frames, making installation and disassembly convenient and facilitating later adjustment and maintenance; 7. The metering module integrates the meter body and signal transmission unit, which can monitor power parameters in real time and transmit them to an external monitoring terminal wirelessly or via wired means to achieve remote monitoring and management, improving the intelligence and convenience of power management. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0018] Figure 2 This is a three-dimensional structural diagram of the internal structure of the power distribution cabinet of this utility model;

[0019] Figure 3 This is a three-dimensional structural diagram of the active heat dissipation structure and the power distribution cabinet after separation.

[0020] Figure 4 This is a three-dimensional structural diagram of the active heat dissipation structure of this utility model after disassembly;

[0021] Figure 5 This is a three-dimensional structural diagram of the connection between the incoming line module, the outgoing line module, and the module mounting frame of this utility model.

[0022] In the diagram: 1. Distribution cabinet; 2. Sealed door; 3. Active heat dissipation trough; 4. Inlet hole; 5. Outlet hole; 6. Auxiliary heat dissipation trough; 7. Inlet module; 8. Lightning protection structure; 81. Conductive post; 82. Grounding plate; 9. Module mounting frame; 91. Waist-shaped hole; 10. Active heat dissipation structure; 101. Fan mounting frame; 102. Mounting screw; 103. Cooling fan; 104. Heat-conducting block; 105. Stud; 106. Fixing nut; 11. Connection structure; 111. U-shaped frame; 13. Mounting bolt; 12. Metering module. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0024] To facilitate understanding of this utility model, a more comprehensive description will be given below with reference to the accompanying drawings. Several embodiments of this utility model are provided. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this utility model will be more thorough and complete.

[0025] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0027] For examples, please refer to Figure 1-5 This utility model provides a technical solution:

[0028] A modular high and low voltage distribution cabinet includes a cabinet body 1. A sealed door 2 is hinged to the base of the cabinet body 1. Active heat dissipation slots 3 are provided on the left and right sides of the cabinet body 1. Inlet holes 4 and outlet holes 5 are respectively provided on the lower left and right sides of the cabinet body 1. An auxiliary heat dissipation slot 6 is provided on the top of the cabinet body 1. An inlet module 7 is installed inside the cabinet body 1 on one side of the inlet hole 4, and an outlet module is installed inside the cabinet body 1 on one side of the outlet hole 5. External cables are connected to the inlet module 7 through the inlet hole 4 and to the outlet module through the outlet hole 5, completing the power input and output line connection. Lightning protection structures are also provided on the inlet module 7 and the outlet module. 8. Vertical module mounting frames 9 are provided on the left, middle and right sides of the inside of the power distribution cabinet 1. The module mounting frames 9 have several waist-shaped holes 91. The module mounting frames 9 are fixed in the left, middle and right positions inside the power distribution cabinet 1. Other modules are installed on the module mounting frames 9 through corresponding connection structures. The module positions can be adjusted by using the waist-shaped holes 91 according to actual needs. An active heat dissipation structure 10 is also provided on one side of the active heat dissipation slot 3 and installed on the module mounting frames 9. The incoming module 7 and the outgoing module are installed above the module mounting frames 9 through the connection structure 11. Metering modules 12 are also provided inside the power distribution cabinet 1 and fixedly installed between the module mounting frames 9.

[0029] Specifically, the lightning protection structure 8 includes a conductive post 81 connected on one side to the incoming module 7 and the outgoing module. An insulating protective sleeve is tightly fitted between the conductive post 81 and the hole on the distribution cabinet 1. The other side of the conductive post 81 extends through to the grounding plate 82 on the outside of the distribution cabinet 1, and the bottom of the grounding plate 82 is in contact with the ground. The conductive post 81 is made of copper material with high conductivity and its surface is tin-plated to enhance its anti-oxidation and anti-corrosion performance and ensure long-term stable conductivity. The side of the grounding plate 82 that contacts the ground is provided with serrated protrusions to increase the contact area and friction with the ground. The grounding plate 82 is filled with a high-conductivity resistance-reducing agent to lower the grounding resistance and improve lightning protection. The connection between the conductive post 81 and the incoming and outgoing modules is secured by crimping, with conductive paste applied to the connection points to ensure a tight connection and low resistance, preventing excessive contact resistance during lightning current transmission. During installation, one end of the conductive post 81 is crimped and fixed to the incoming and outgoing modules, and conductive paste is applied to ensure a tight connection. The other end of the conductive post 81 passes through the distribution cabinet 1 and connects to the grounding plate 82, ensuring good contact between the grounding plate 82 and the ground. During daily operation, the lightning protection structure 8 is always on standby. The high-conductivity, tin-plated copper conductive post 81 ensures long-term stable conductivity. The serrated protrusions on the grounding plate 82's contact surface and the resistance-reducing agent underneath effectively reduce grounding resistance. When struck by lightning, the lightning protection structure 8 can quickly divert the lightning current to the ground, protecting the incoming module 7, outgoing module, and other components in the distribution cabinet from damage by lightning, and ensuring the safe operation of the power system.

[0030] Specifically, the active cooling structure 10 includes a fan mounting frame 101 fixedly mounted to the inside of the power distribution cabinet 1 by mounting screws 102 and corresponding to the active cooling slot 3. A rotatable cooling fan 103 is installed inside the fan mounting frame 101, and the air outlet of the cooling fan 103 is connected to the active cooling slot 3. It also includes a heat-conducting block 104 located on one side of the fan mounting frame 101 and away from the active cooling slot 3. The front and rear ends of the heat-conducting block 104 are provided with studs 105, and the studs 105 pass through the waist-shaped holes 91 located on the module mounting frame 9 and are locked and fixed by fixing nuts 106. The fan mounting frame 101 is fixed to the inside of the power distribution cabinet 1 at the position corresponding to the active cooling slot 3 by mounting screws 102. The rotatable cooling fan 103 is installed inside the fan mounting frame 101 so that the air outlet of the cooling fan 103 is connected to the active cooling slot 3. The heat-conducting block 104 is passed through the waist-shaped hole 91 on the module mounting frame 9 via the stud 105 and locked in place with the fixing nut 106 on one side of the fan mounting frame 101 away from the active heat dissipation slot 3. During operation, the cooling fan 103 starts to dissipate heat from the distribution cabinet; the active heat dissipation structure 10 actively dissipates heat from the distribution cabinet, and the heat-conducting block 104 can conduct the heat generated by the module to the vicinity of the cooling fan 103, optimizing the heat dissipation path, effectively reducing the internal temperature of the distribution cabinet, and ensuring the stable operation of electrical components.

[0031] Dust filters are installed on the active heat dissipation trough 3 and the auxiliary heat dissipation trough 6. These filters are detachable for easy regular cleaning, preventing external dust from entering the distribution cabinet 1 without affecting ventilation. The active heat dissipation trough 3 and the auxiliary heat dissipation trough 6 maintain continuous ventilation. The dust filters are installed on the active heat dissipation trough 3 and the auxiliary heat dissipation trough 6, and are periodically removed for cleaning and reinstalled. The active heat dissipation trough 3, in conjunction with the active heat dissipation structure 10, achieves active exhaust, while the auxiliary heat dissipation trough 6 enhances air convection, jointly reducing the internal temperature of the cabinet. The detachable dust filters prevent external dust from entering the distribution cabinet 1 without affecting ventilation, ensuring stable operation of electrical components and extending their service life.

[0032] Specifically, the connection structure 11 includes a U-shaped frame 111 that is fixed to the upper and lower ends of the inlet module 7 and the outlet module by screws. The U-shaped frame 111 is clamped against the module mounting frame 9 and locked in place by mounting bolts 13 passing through the oblong holes 91. The U-shaped frame 111 is fixed to the upper and lower ends of the inlet module 7 and the outlet module by screws, then the U-shaped frame 111 is clamped against the module mounting frame 9, and finally locked in place by mounting bolts 13 passing through the oblong holes 91. This achieves a quick and stable connection between the inlet module 7, the outlet module and the module mounting frame 9, facilitating installation and disassembly, and making it easier to adjust and maintain the module later.

[0033] Specifically, the metering module 12 includes a meter body and a signal transmission unit. The meter body is used to monitor the power parameters of the incoming and outgoing lines in real time, and the signal transmission unit is used to transmit the metering data wirelessly or wiredly to an external monitoring terminal for remote monitoring and management. The metering module 12 is fixedly installed between the module mounting frames 9. The meter body monitors the power parameters of the incoming and outgoing lines in real time, and the signal transmission unit transmits the metering data wirelessly or wiredly to an external monitoring terminal. It can obtain the power parameters of the incoming and outgoing lines in real time and realize remote monitoring and management, improve the intelligence and convenience of power management, and facilitate power management personnel to keep abreast of power usage.

[0034] Specifically, a sealing strip is installed between the sealed door 2 and the distribution cabinet 1. The sealing strip surrounds the edge of the sealed door 2, which can effectively prevent dust, moisture and other impurities from entering the interior of the distribution cabinet 1, thereby improving the protection level of the distribution cabinet. The sealed door 2 is rotatably connected to the distribution cabinet 1 by a hinge, which can realize opening and closing operations. During daily maintenance or inspection, the sealed door 2 is opened; during normal operation, the sealed door 2 is closed. The sealing strip surrounding the edge of the sealed door 2 can effectively block dust, moisture and other impurities from entering the interior of the distribution cabinet 1, thereby improving the protection level of the distribution cabinet and creating a good operating environment for the internal electrical components.

[0035] The workflow of this utility model is as follows: When installing the modular high and low voltage distribution cabinet, firstly, the module mounting frame 9 is fixed inside the distribution cabinet 1 at the left, center, and right positions. Using the oblong holes 91 on the module mounting frame 9, the fan mounting frame 101 is fixed to the inner side of the distribution cabinet 1 at the position corresponding to the active heat dissipation slot 3 by mounting screws 102. A rotatable cooling fan 103 is installed inside the fan mounting frame 101, so that the air outlet of the cooling fan 103 is connected to the active heat dissipation slot 3. The heat-conducting block 104 is passed through the oblong holes 91 on the module mounting frame 9 by studs 105 and locked and fixed to the side of the fan mounting frame 101 away from the active heat dissipation slot 3 with fixing nuts 106. At the same time, detachable heat dissipation blocks are installed on the active heat dissipation slot 3 and the auxiliary heat dissipation slot 6. Dustproof netting is installed, and U-shaped frame 111 is fixed to the upper and lower ends of the inlet module 7 and outlet module with screws. Then, U-shaped frame 111 is clamped and pressed against the module mounting frame 9. Mounting bolts 13 are passed through the waist-shaped hole 91 for locking and fixing, thus completing the installation of inlet module 7 and outlet module. Then, one end of conductive post 81 is pressed and fixed to inlet module 7 and outlet module, and conductive paste is applied to ensure tight connection. The other end of conductive post 81 passes through the distribution cabinet 1 and connects to grounding plate 82. The grounding plate 82 has good contact with the ground below, thus completing the installation of lightning protection structure 8. Metering module 12 is fixedly installed between module mounting frames 9. Finally, sealing door 2 is installed on the base surface of distribution cabinet 1 through hinges, and sealing strips are installed on the edge of sealing door 2.

[0036] When using this modular high and low voltage distribution cabinet, external cables are connected to the incoming module 7 through the inlet hole 4 and to the outgoing module through the outlet hole 5 to complete power input and output. At this time, the lightning protection structure 8 is on standby to ensure line safety. The metering module 12 monitors the power parameters of the incoming and outgoing lines in real time. The signal transmission unit transmits the metering data to the external monitoring terminal wirelessly or via wire. The cooling fan 103 starts, and the active heat dissipation slot 3 works with the active heat dissipation structure 10 to achieve active ventilation. The auxiliary heat dissipation slot 6 enhances air convection, and together they reduce the internal temperature of the cabinet to ensure the stable operation of electrical components.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A modular high and low voltage distribution cabinet, comprising a cabinet body (1), characterized in that: The base of the power distribution cabinet (1) is connected to a sealed door (2) via a hinge. Active heat dissipation slots (3) are provided on the left and right sides of the power distribution cabinet (1). Inlet holes (4) and outlet holes (5) are respectively provided on the lower left and right sides of the power distribution cabinet (1). An auxiliary heat dissipation slot (6) is provided on the top of the power distribution cabinet (1). An inlet module (7) is installed inside the power distribution cabinet (1) on one side of the inlet hole (4), and an outlet module is installed inside the power distribution cabinet (1) on one side of the outlet hole (5). The inlet module (7) and outlet module are also respectively equipped with… The lightning protection structure (8) has vertical module mounting frames (9) corresponding to the left, middle and right sides of the power distribution cabinet (1). The module mounting frames (9) have several waist-shaped holes (91). The active heat dissipation slot (3) also has an active heat dissipation structure (10) installed on the module mounting frame (9). The incoming module (7) and the outgoing module are installed above the module mounting frame (9) through a connecting structure (11). The power distribution cabinet (1) also has metering modules (12) fixedly installed between the module mounting frames (9).

2. The modular high and low voltage distribution cabinet according to claim 1, characterized in that: The lightning protection structure (8) includes a conductive post (81) connected on one side to the incoming line module (7) and the outgoing line module, and the other side of the conductive post (81) extends through to the grounding plate (82) outside the distribution cabinet (1), and the grounding plate (82) is in contact with the ground below.

3. A modular high and low voltage distribution cabinet according to claim 2, characterized in that: The conductive post (81) is made of copper material with high conductivity and its surface is tin-plated to enhance its anti-oxidation and anti-corrosion properties and ensure long-term stable conductivity. The grounding plate (82) has a serrated protrusion on the side that contacts the ground to increase the contact area and friction with the ground. At the same time, the grounding plate (82) is filled with a resistance-reducing agent with conductive properties to reduce the grounding resistance and improve the lightning protection effect. The conductive post (81) is fixedly connected to the inlet module (7) and the outlet module by crimping and conductive paste is applied at the connection to ensure tight connection and low resistance, and to prevent excessive contact resistance during lightning current transmission.

4. A modular high and low voltage distribution cabinet according to claim 1, characterized in that: The active heat dissipation structure (10) includes a fan mounting frame (101) that is fixedly installed on the inner side of the power distribution cabinet (1) by mounting screws (102) and corresponds to the active heat dissipation slot (3). The fan mounting frame (101) is provided with a rotatable heat dissipation fan (103), and the air outlet of the heat dissipation fan (103) is connected to the active heat dissipation slot (3).

5. A modular high and low voltage distribution cabinet according to claim 4, characterized in that: It also includes a heat-conducting block (104) disposed on one side of the fan mounting frame (101) and away from the active heat dissipation slot (3). The front and rear ends of the heat-conducting block (104) are also provided with studs (105), and the studs (105) pass through the waist-shaped hole (91) on the module mounting frame (9) and are locked and fixed by a fixing nut (106).

6. A modular high and low voltage distribution cabinet according to claim 1, characterized in that: Dustproof nets are provided on the active heat dissipation slot (3) and the auxiliary heat dissipation slot (6). The dustproof nets adopt a detachable installation structure, which is convenient for regular cleaning. They can prevent external dust from entering the power distribution cabinet (1) without affecting the heat dissipation and ventilation effect.

7. A modular high and low voltage distribution cabinet according to claim 1, characterized in that: The connection structure (11) includes a U-shaped frame (111) that is fixedly connected to the upper and lower ends of the inlet module (7) and the outlet module by screws. The U-shaped frame (111) is clamped against the module mounting frame (9) and locked by mounting bolts (13) passing through the waist-shaped hole (91).

8. A modular high and low voltage distribution cabinet according to claim 1, characterized in that: The metering module (12) includes a meter body and a signal transmission unit. The meter body is used to monitor the power parameters of the incoming and outgoing lines in real time. The signal transmission unit is used to transmit the metering data wirelessly or wiredly to an external monitoring terminal for remote monitoring and management.

9. A modular high and low voltage distribution cabinet according to claim 1, characterized in that: A sealing strip is provided between the sealing door (2) and the power distribution cabinet (1). The sealing strip surrounds the edge of the sealing door (2), which can effectively prevent impurities from entering the interior of the power distribution cabinet (1) and improve the protection level of the power distribution cabinet.

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