Multifunctional switchboard for power transmission and distribution line

Abstract

The utility model relates to the technical field of switchboards, and discloses a multifunctional switchboard for a power transmission and distribution line, which comprises a protection box, a switchboard is fixedly connected in the protection box, a plurality of wire inlet holes are arranged in the protection box, and a multifunctional mechanism is fixedly connected outside the switchboard. The interior of the protection box is fixedly connected with a heat dissipation mechanism, the multifunctional mechanism comprises a plurality of leakage protectors, the top of the reinforcing seat is fixedly connected with a protection assembly used for providing protection, the front side of the exterior of the distribution board is fixedly connected with an ampere meter, and the front side of the distribution board is fixedly connected with a fuse. According to the utility model, the contactor, the ampere meter and the relay I cooperate with each other to realize multiple functions to protect the switchboard, effectively extinguish arcs and protect the switchboard, so that the safety, reliability and stability of an electrical system can be improved, electric arcs and heat can be quickly dissipated, equipment in the switchboard can be effectively protected, and equipment damage and potential safety hazards caused by the electric arcs can be prevented.

Description

Technical Field

[0001] This utility model relates to the field of distribution panel technology, and in particular to a multifunctional distribution panel for power transmission and distribution lines. Background Technology

[0002] In modern power systems, the safe and stable operation of transmission and distribution lines is crucial to ensuring power supply. The distribution panels used in transmission and distribution lines are usually called distribution boxes or distribution panels. Distribution panels are an important part of the power system and are mainly used to receive, distribute and protect power.

[0003] A power distribution panel for transmission and distribution lines mainly consists of a distribution panel, a residual current device (RCD), a solid-state relay, and a support plate. The distribution panel, as the core of the entire system, is used to receive and distribute electrical energy to different electrical devices. The RCD detects leakage in the line, preventing electric shock accidents and ensuring electrical safety. The solid-state relay uses electronic control to precisely switch the current, providing overload protection and control. The support plate provides a stable mounting base.

[0004] In existing technologies, some power distribution line switchboards often lack multi-functional protection mechanisms when encountering abnormal situations such as overvoltage and surge current, leading to equipment damage and power system failures, which in turn affects the safe operation of the entire power grid. This results in the inability to absorb internal heat, causing equipment damage and safety hazards, affecting the stability of the entire equipment, increasing maintenance costs, causing power supply instability, and even causing economic losses. More seriously, it affects the operational safety of the entire power grid. Therefore, a multi-functional switchboard for power transmission and distribution lines is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a multi-functional distribution panel for power transmission and distribution lines, aiming to improve the problem that existing technologies cannot achieve multiple functions to protect the distribution panel.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A multi-functional distribution panel for power transmission and distribution lines includes a protection box, a distribution panel fixedly connected inside the protection box, multiple inlet holes opened inside the protection box, multiple relays fixedly connected outside the distribution panel, two support plates fixedly connected outside the distribution panel, a multi-functional mechanism fixedly connected outside the distribution panel, and a heat dissipation mechanism fixedly connected inside the protection box.

[0008] The multifunctional mechanism includes multiple residual current devices (RCDs), the rear sides of which are fixedly connected to the front of the distribution panel. Two contactors are fixedly connected to the front of the distribution panel, and multiple solid-state relays are fixedly connected to the front of the distribution panel. A reinforcing base is fixedly connected to the bottom of the inner side of the protection box, and a protection component for providing protection is fixedly connected to the top of the reinforcing base. An ammeter is fixedly connected to the front of the distribution panel, and a fuse is fixedly connected to the front of the distribution panel.

[0009] As a further description of the above technical solution:

[0010] The protective assembly includes two support bases, the bottoms of which are fixedly connected to the top of the reinforcement base. One of the support bases is rotatably connected to a contact. An arc-extinguishing cover is fixedly connected to the top of the reinforcement base. Multiple arc-extinguishing grid plates are fixedly connected to the inside of the arc-extinguishing cover. A limit ring is rotatably connected to the outside of one of the support bases.

[0011] As a further description of the above technical solution:

[0012] The outer side of the contact is slidably connected to the interior of one of the other support bases, and the outer side of the contact is slidably connected to the interior of the plurality of arc-extinguishing grids.

[0013] As a further description of the above technical solution:

[0014] A frequency converter is fixedly connected to the front of the distribution panel, and the fuse is fixedly connected to the outside of the frequency converter.

[0015] As a further description of the above technical solution:

[0016] The heat dissipation mechanism includes two cooling fans, which are externally fixedly connected to one side of the inside of the protective box. Multiple heat dissipation columns are fixedly connected inside the protective box. Multiple filter plates are fixedly connected to the cooling fans and the heat dissipation columns. A heat dissipation block is fixedly connected to the rear side of the protective box.

[0017] As a further description of the above technical solution:

[0018] Multiple filter plates are externally fixedly connected to the inside of the protective box, and a cabinet door is rotatably connected to the outside of the protective box. A display screen is fixedly connected to the outside of the cabinet door.

[0019] As a further description of the above technical solution:

[0020] The top of the protective box is fixedly connected to a sunshade and rainproof cover, and the outer rear side of the heat sink is fixedly connected to the inner rear side of the protective box.

[0021] As a further description of the above technical solution:

[0022] The bottom of the fuse is slidably connected to the top of the ammeter, and the outer inner side of the reinforcing base is fixedly connected to the outer front side of the distribution panel.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, the contactor, ammeter, and relay work together to generate an electric arc when the contacts break. Under the contraction force of the magnetic force, the electric arc is pulled into the arc-extinguishing grid of the arc-extinguishing hood. Since there are gaps between each steel plate, the electric arc is divided into multiple short arcs after entering. At the same time, the grid dissipates heat, thus achieving multiple functions to protect the distribution panel, effectively extinguishing the arc and protecting it. This can improve the safety, reliability, and stability of the electrical system. The electric arc also dissipates heat quickly, effectively protecting the equipment in the distribution panel and preventing equipment damage and safety hazards caused by the electric arc.

[0025] 2. In this utility model, the heat dissipation fan and heat dissipation column heat dissipation block structure work together to dissipate the heat inside the distribution panel and maintain the internal temperature balance. At the same time, the sunshade and rain cover on the top is waterproof, effectively reducing the internal temperature of the distribution panel, ensuring the stability of equipment operation, and preventing external weather from having an adverse effect on the equipment, thereby improving the overall reliability and service life of the equipment. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of a multi-functional distribution panel for power transmission and distribution lines proposed in this utility model;

[0027] Figure 2 This is a schematic diagram of the structure of a fuse for a multi-functional distribution panel for power transmission and distribution lines proposed in this utility model;

[0028] Figure 3 This is a schematic diagram of the heat dissipation column of a multi-functional distribution panel for power transmission and distribution lines proposed in this utility model;

[0029] Figure 4 This is a schematic diagram of the display screen of a multi-functional distribution panel for power transmission and distribution lines proposed in this utility model;

[0030] Figure 5 for Figure 2 Enlarged view of point A in the middle.

[0031] Legend:

[0032] 1. Protection box; 2. Distribution panel; 3. Relay 1; 4. Support plate; 5. Residual current device (RCD); 6. Contactor; 7. Ammeter; 8. Fuse; 9. Inlet hole; 10. Solid state relay 2; 11. Cabinet door; 12. Frequency converter; 13. Arc extinguishing hood; 14. Contact; 15. Limit ring; 16. Support base; 17. Arc extinguishing grid; 18. Sunshade and rain cover; 19. Heat dissipation column; 20. Filter plate; 21. Display screen; 22. Heat sink; 23. Cooling fan; 24. Reinforcing base. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Reference Figure 2 , Figure 3 , Figure 5 This utility model provides an embodiment of a multi-functional distribution panel for power transmission and distribution lines, including a protective box 1. The protective box 1 is the outer shell of the distribution panel 2, and its main function is to protect the internal electrical components from the influence of the external environment, such as dust, water droplets, and external impacts. At the same time, the protective box 1 provides a neat arrangement space to ensure that all components can be firmly and safely fixed and work normally. The distribution panel 2 is fixedly connected inside the protective box 1. The material of the protective box 1 is usually selected to be a material with high temperature resistance, corrosion resistance, and high strength, such as metal. The box body is equipped with a heat dissipation structure and multiple mounting bases. To ensure the stable installation of all electrical components and protection devices, the protection box 1 has multiple inlet holes 9 inside. The distribution panel 2 is externally fixedly connected to multiple relays 3. The relays 3 are electromagnetic relays, and their internal coils are wound with high-purity copper wire, which has high conductivity and anti-aging performance. They can quickly close and open the contacts under the action of control signals to realize the automatic switching and control of the circuit. The distribution panel 2 is the core of the entire system and is responsible for distributing power from the main power supply to various branch lines. The distribution panel 2 also undertakes important functions such as overload protection, short circuit protection, and leakage protection.

[0035] The distribution panel 2 has two externally fixed support plates 4, which serve as structural supports and help distribute the load of the components on the panel, preventing loosening and damage due to long-term use. The support plates 4 also have multiple holes for easy installation and access of electrical wires. The distribution panel 2 also has a multi-functional mechanism, including multiple residual current devices (RCDs) 5. The rear of each RCD 5 is fixedly connected to the front of the distribution panel 2. The RCDs 5 detect current leakage and, upon detection, immediately cut off the circuit to prevent electrical fires and electric shocks. The front of the distribution panel 2 also has two contactors 6, which control the flow of current, primarily for larger loads and the opening and closing of control circuits. The contactor 6 is generally composed of an electromagnet and multiple contacts. It completes the switching operation through electromagnetic action. Multiple solid-state relays 10 are fixedly connected to the front of the distribution panel 2. The internal components include drive circuits, optocoupler isolation modules, etc. The input control signal drives the power semiconductor device to turn on and off after passing through the optocoupler isolation, thereby realizing the on and off control of the circuit. It is suitable for electronic circuits, automatic control systems and other occasions with high response speed requirements.

[0036] A reinforcing base 24 is fixedly connected to the bottom of the inner side of the protective box 1. A protective component for providing protection is fixedly connected to the top of the reinforcing base 24. The protective component includes two support bases 16, which provide stable support for the contact 14 and isolate the electrical connection part from the reinforcing base 24 to prevent leakage risk. The bottom of the two support bases 16 is fixedly connected to the top of the reinforcing base 24. The contact 14 is rotatably connected inside one of the support bases 16. The contact 14 ensures flexible rotation. Its opening and closing action is driven by a cooperating electromagnetic mechanism to realize reliable circuit switching. An arc extinguishing cover 13 is fixedly connected to the top of the reinforcing base 24. Multiple arc extinguishing grids 17 are fixedly connected inside the arc extinguishing cover 13 to facilitate the guidance of arc movement. When an electric arc is generated at the moment the circuit is broken, the arc extinguishing cover 13 can confine the arc to the internal space to prevent the arc from spreading outward and causing an electrical accident. Under the action of electromagnetic force, it is pulled into the arc extinguishing grid 17. The grid divides the arc into multiple short arcs. By utilizing the near-cathode effect of the short arcs, the arc is quickly cooled and extinguished, improving the arc extinguishing efficiency and protecting the contact 14 and surrounding electrical components from arc erosion.

[0037] One of the support bases 16 is externally rotatably connected to a limit ring 15. When the contact 14 opens and closes, the limit ring 15 limits the contact 14. An ammeter 7 is fixedly connected to the front of the distribution panel 2. A fuse 8 is fixedly connected to the front of the distribution panel 2. The fuse 8 is a protective device used to prevent the harm of overcurrent. When the current exceeds the safety limit, the metal wire in the fuse 8 will melt due to overheating. A heat dissipation mechanism is fixedly connected inside the automatic circuit disconnection protection box 1. The outer side of the contact 14 is slidably connected to the inside of another support base 16. The outer side of the contact 14 is slidably connected to the inside of multiple arc-extinguishing grid plates 17. A frequency converter 12 is fixedly connected to the front of the distribution panel 2. The inner side of the fuse 8 is fixedly connected to the outside of the frequency converter 12.

[0038] Reference Figure 1 , Figure 4 The heat dissipation mechanism includes two cooling fans 23, with filter plates 20 installed on the outside of the fans to prevent foreign objects from entering and damaging them. The mesh size of the filter plates 20 ensures ventilation while preventing accidental contact with fingers. The two cooling fans 23 are externally fixedly connected to one side of the interior of the protective box 1. Multiple heat dissipation columns 19 are fixedly connected inside the protective box 1. By increasing the contact area, heat is dissipated through airflow. Multiple filter plates 20 are fixedly connected to the outside of the cooling fans 23 and heat dissipation columns 19 to remove dust and debris from the air, preventing these impurities from entering the heat dissipation device and affecting its performance. A heat dissipation block 22 is fixedly connected to the rear side of the protective box 1 to increase the contact area with the air and accelerate heat dissipation. It fits tightly against the rear interior of the protective box 1, quickly dissipating the heat conducted from inside the box into the surrounding air. Multiple filter plates 20 are externally fixedly connected to the interior of the protective box 1. A cabinet door 11 is rotatably connected to the outside of the protective box 1.

[0039] A display screen 21 is fixedly connected to the outside of the cabinet door 11. This display screen 21 is an LCD touch screen that can display various operating parameters of the distribution panel 2 in real time, such as voltage, current, and power factor. This allows operators to monitor the operating status of the power system at any time and perform some simple parameter settings and fault queries through touch operation. The display screen 21 is fixedly connected to the outside of the cabinet door 11. A sunshade and rain cover 18 is fixedly connected to the top of the protection box 1, which can effectively block direct sunlight and reduce the internal temperature rise of the protection box 1 due to prolonged exposure to the sun. At the same time, it can prevent rainwater from accumulating on the top of the box in rainy weather and avoid rainwater from seeping into the box and causing short circuits and other faults. The heat sink 22 is fixedly connected to the rear of the inside of the protection box 1. The bottom of the fuse 8 is slidably connected to the top of the ammeter 7, which can accurately measure the current in the line and display it on the ammeter 7 in real time, allowing operators to intuitively understand the power load. The reinforcing base 24 is fixedly connected to the front of the distribution panel 2.

[0040] Working principle: First, power enters the distribution panel 2 from the main power supply through multiple inlet holes 9 of the protection box 1. As the core of the system, the distribution panel 2 is responsible for distributing power to various branch lines and implementing functions such as overload protection, short circuit protection, and leakage protection. The distribution panel 2 is externally connected to multiple relays 3. Through electromagnetic action, the relays 3 can quickly switch the circuit on and off to ensure stable current control. At the same time, multiple leakage protectors 5 monitor the current status in real time. Contactors 6 are used to control the current on and off of larger loads to ensure the safe operation of the equipment. The distribution panel 2 is equipped with multiple solid-state relays 10, which can quickly respond to control signals and realize the control of the circuit.

[0041] The ammeter 7 displays the current parameters in the line in real time, which is convenient for operators to monitor the operating status of the power system. During the operation of the system, an electric arc will be generated when the contact 14 breaks. Under the action of the contraction force of the magnetic lines, the electric arc will be pulled into the arc-extinguishing grid 17 of the arc-extinguishing shroud 13. Since there are gaps between each steel plate, the electric arc will be divided into multiple short arcs after entering. At the same time, the grid will dissipate heat. Meanwhile, the limit ring 15 limits the movement from the outside, thus realizing multiple functions to protect the distribution panel 2. A fuse 8 is connected to the front of the distribution panel 2 to prevent the harm of overcurrent. Once the current exceeds the safety limit, the metal wire in the fuse 8 will automatically disconnect the circuit. A frequency converter 12 is also fixedly connected to the outside of the distribution panel 2.

[0042] Secondly, the heat dissipation mechanism actively removes the heat generated inside through two cooling fans 23 and multiple cooling columns 19 and heat dissipation blocks 22. The filter plate 20 outside the cooling fans 23 prevents foreign objects from entering and ensures the stability of the heat dissipation effect. In addition, it further optimizes the efficiency of power use. Under the protection of the sunshade and rain cover 18 of the protection box 1, the entire system avoids the influence of the external environment and ensures the safe and stable operation of the internal components. The multi-functional distribution panel 2 can realize efficient and safe power distribution and management.

[0043] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multifunctional distribution panel for power transmission and distribution lines, comprising a protection box (1), characterized in that: The protection box (1) is fixedly connected to a distribution panel (2). The protection box (1) has multiple inlet holes (9) inside. The distribution panel (2) is fixedly connected to multiple relays (3) outside. The distribution panel (2) is fixedly connected to two support plates (4) outside. The distribution panel (2) is fixedly connected to a multi-functional mechanism outside. The protection box (1) is fixedly connected to a heat dissipation mechanism inside. The multifunctional mechanism includes multiple leakage current protectors (5), the rear side of which is fixedly connected to the front side of the distribution panel (2), two contactors (6) are fixedly connected to the front side of the distribution panel (2), multiple solid-state relays (10) are fixedly connected to the front side of the distribution panel (2), a reinforcing base (24) is fixedly connected to the bottom side of the inside of the protection box (1), a protection component for providing protection is fixedly connected to the top of the reinforcing base (24), an ammeter (7) is fixedly connected to the front side of the distribution panel (2), and a fuse (8) is fixedly connected to the front side of the distribution panel (2).

2. A multi-functional switchboard for power transmission and distribution lines as claimed in claim 1, wherein: The protective assembly includes two support bases (16), the bottoms of which are fixedly connected to the top of the reinforcing base (24). A contact (14) is rotatably connected inside one of the support bases (16), and an arc-extinguishing cover (13) is fixedly connected to the top of the reinforcing base (24). Multiple arc-extinguishing grids (17) are fixedly connected inside the arc-extinguishing cover (13), and a limit ring (15) is rotatably connected to the outside of one of the support bases (16).

3. A multi-functional switchboard for power transmission and distribution lines as claimed in claim 2 wherein: The outer side of the contact (14) is slidably connected to the interior of one of the other support bases (16), and the outer side of the contact (14) is slidably connected to the interior of a plurality of arc-extinguishing grids (17).

4. A multi-functional switchboard for power transmission and distribution lines as claimed in claim 2 wherein: A frequency converter (12) is fixedly connected to the front of the distribution panel (2), and the fuse (8) is fixedly connected to the outside of the frequency converter (12).

5. The multi-functional distribution panel for power transmission and distribution lines as claimed in claim 1 wherein: The heat dissipation mechanism includes two heat dissipation fans (23), which are externally fixedly connected to one side of the inside of the protective box (1). Multiple heat dissipation columns (19) are fixedly connected inside the protective box (1). Multiple filter plates (20) are fixedly connected to the outside of the heat dissipation fans (23) and the heat dissipation columns (19). A heat dissipation block (22) is fixedly connected to the rear side of the protective box (1).

6. A multi-functional distribution panel for power transmission and distribution lines as claimed in claim 5 wherein: Multiple filter plates (20) are externally fixedly connected to the inside of the protective box (1), and a cabinet door (11) is rotatably connected to the outside of the protective box (1). A display screen (21) is fixedly connected to the outside of the cabinet door (11).

7. A multi-functional distribution panel for power transmission and distribution lines as claimed in claim 5 wherein: The top of the protective box (1) is fixedly connected to a sunshade and rain cover (18), and the outer rear side of the heat sink (22) is fixedly connected to the inner rear side of the protective box (1).

8. A multi-functional distribution panel for power transmission and distribution lines as claimed in claim 1, wherein: The bottom of the fuse (8) is slidably connected to the top of the ammeter (7), and the outer inner side of the reinforcing base (24) is fixedly connected to the outer front side of the distribution panel (2).

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