A new lightning protection instrument power distribution box

Abstract

A novel surge protection instrument power distribution box includes a box body. A rain cover is fixed to the upper part of the box body via a support block. A mounting base is fixed inside the rain cover, and a lightning arrester is detachably installed on the mounting base. The lightning arrester is plugged into a grounding wire. The mounting base has mounting holes, and mounting blocks are fixed to the lower end of the corresponding lightning arrester at the front and rear. The lower part of the lightning arrester is plugged into the mounting holes and locked to the mounting blocks by a limiting component. A cooling water tank is provided inside the rear side panel of the box body, penetrating the side panel. The upper end of the cooling water tank is connected to a connecting pipe that extends into the rain cover. This novel surge protection instrument power distribution box provides rapid installation of lightning arresters and effective heat dissipation.

Description

Technical Field

[0001] This utility model relates to the field of distribution boxes, and in particular to a new type of lightning protection instrument power distribution box. Background Technology

[0002] Distribution boxes are electrical equipment characterized by their small size, easy installation, special technical performance, fixed location, unique configuration functions, lack of site restrictions, widespread application, stable and reliable operation, high space utilization, small footprint, and environmental benefits.

[0003] Existing surge protection instrument power distribution boxes protect the power box through lightning arresters installed on the top. Since the lightning arresters are exposed to the external environment for a long time, they are easily damaged by external factors, affecting the protection of the power box. The lightning arresters are mostly installed by bolt fixing or concrete fixing. Once the lightning arrester has a problem, it is relatively troublesome to replace, which wastes a lot of time and affects the protection of the power box. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a new type of lightning protection instrument power distribution box, which facilitates quick replacement of lightning arresters and has the advantages of effective heat dissipation and fire protection for the power box.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A novel lightning protection instrument power distribution box includes a box body, a rain cover box fixed to the upper end of the box body by a support block, a mounting base fixed inside the rain cover box, a lightning arrester detachably installed on the mounting base, and the lightning arrester being plugged into a grounding wire.

[0007] The mounting base has a mounting hole, and the lower end of the corresponding lightning arrester is fixed with a mounting block at the front and rear. The lower part of the lightning arrester is inserted into the mounting hole and locked to the mounting block by a limiting component.

[0008] A cooling water trough is provided inside the rear side panel of the enclosure. The cooling water trough penetrates the side panel of the enclosure, and the upper end of the cooling water trough is connected to a connecting pipe that extends into the rain cover box.

[0009] The mounting holes include an upper hole and a lower hole, which are interconnected. The upper hole is a circular hole with the same size as the lower end of the lightning arrester, and grooves matching the size of the mounting blocks are opened at the front and back of the circular hole. The lower hole is a circular hole with a diameter matching the distance between the outermost edges of the two mounting blocks. The height of the lower hole matches the thickness of the mounting blocks.

[0010] The limiting component includes a locking rod, which is slidably disposed in the limiting groove of the mounting base and its upper end extends freely out of the mounting base; the portion of the locking rod located in the limiting groove is equipped with a limiting plate, and a locking spring is sleeved on the locking rod above the limiting plate; the lower part of the locking rod is pressed by the locking spring and engaged with the locking hole of the mounting block.

[0011] The clamps are arranged in two sets, side by side, with the upper ends of the two clamps connected to the pull rings.

[0012] The left and right side panels of the enclosure have ventilation slots, and ventilation boxes are fixedly installed on the inner side walls of the ventilation slots. Electric fans are installed inside the ventilation boxes, with one fan blowing air and the other fan exhausting air.

[0013] An air guide box is fixedly installed on the outer wall of the ventilation slot on the box body. An air outlet is opened at the lower end of the air guide box, and a dustproof net can be detachably installed at the air outlet.

[0014] A support rod is slidably inserted into the upper plate of the air guide box. The upper end of the support rod is connected to the connecting plate outside the air guide box, and the lower end of the support rod is connected to the sealing plate inside the air guide box. An adsorption block is fixed to the upper end of the sealing plate. The adsorption block is magnetically attracted to or detached from the electromagnetic coil on the top surface inside the air guide box.

[0015] A return spring is fitted on the support rod, with its upper end connected to the connecting plate and its lower end connected to the outer end face of the air guide box.

[0016] This utility model provides a novel power distribution box for lightning protection instruments, which has the following technical advantages:

[0017] 1) The included mounting bracket allows for easy installation of the lightning arrester during plug-in connection, improving installation efficiency. Disassembly is simple and convenient, requiring only the reverse operation.

[0018] 2) By setting up a rain cover, rainwater can be prevented from entering the cabinet when it rains; at the same time, the rain cover can collect rainwater; when it is necessary to cool down the inside of the cabinet, the rainwater in the rain cover can enter the cooling water tank to cool the cabinet with water; at the same time, air cooling is carried out by the fans on both sides to improve the heat dissipation effect.

[0019] 3) By installing ventilation boxes and electromagnetic sealing plates, the sealing plates can block the air outlets in the event of a fire, preventing oxygen from entering and enabling fire extinguishing when there is insufficient oxygen inside; or in heavy rain, the sealing plates can block the air outlets to prevent rainwater from entering. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0021] Figure 1 This is a schematic diagram of the structure of this utility model (simplified mounting base).

[0022] Figure 2 for Figure 1 A longitudinal cross-sectional view.

[0023] Figure 3 This is a cross-sectional view (first state) of the mounting base in this utility model.

[0024] Figure 4 This is a cross-sectional view (second state) of the mounting base in this utility model.

[0025] Figure 5 This is a cross-sectional schematic diagram of the lower part of the lightning arrester inserted into the upper hole in this utility model.

[0026] Figure 6 This is a cross-sectional view of the lower part of the lightning arrester after it is inserted into the lower hole and rotated 90 degrees.

[0027] Figure 7 This is a schematic diagram of the cooling water tank in this utility model.

[0028] In the diagram: 1. Housing; 2. Air guide box; 3. Support block; 4. Rain cover box; 5. Solenoid valve; 6. Flash arrester; 7. Connecting plate; 8. Support rod; 9. Return spring; 10. Filter screen cover; 11. Ventilation box; 12. Electromagnetic coil; 13. Sealing plate; 14. Adsorption block; 15. Temperature sensor; 16. Mounting base; 17. Mounting groove; 17.1 upper hole; 17.2 lower hole; 18. Grounding wire; 19. Mounting block; 19.1 locking hole; 20. Pull ring; 21. Locking rod; 22. Locking spring; 23. Cooling water tank; 24. Connecting pipe. Detailed Implementation

[0029] like Figure 1 As shown, a novel surge protection instrument power distribution box includes a box body 1, which is square in shape. Support blocks 3 are fixedly installed on the upper end of the box body 1, supporting rain shelter boxes 4. Rain shelter boxes 4 are fixedly installed on the upper ends of the four support blocks 3. During rain, the rain shelter boxes 4 can block rainwater, preventing it from washing over the surface of the box body 1 and preventing rainwater from entering the box body 1 and damaging the internal electronic components.

[0030] like Figure 2 As shown, a mounting base 16 is installed in the middle of the rain cover box 4. A lightning arrester 6 is detachably installed in the middle of the mounting base 16. A copper terminal can be installed at one end of the corresponding grounding wire 18. After the lightning arrester 6 is installed inside the mounting base 16, the copper terminal of the grounding wire 18 can be inserted into the interior of the lightning arrester 6, making the lightning arrester 6 conductive with the copper terminal. This achieves electrical connection between the lightning arrester 6 and the grounding wire 18. Through the cooperation of the lightning arrester 6 and the grounding wire 18, lightning current can be conducted to the ground, protecting equipment from damage.

[0031] like Figures 3-6As shown, the mounting base 16 is cylindrical in shape, and has mounting holes 17 inside. The mounting holes 17 include an upper hole 17.1 and a lower hole 17.2, which are connected. The upper hole 17.1 is a circular hole, and its front and rear ends are connected to grooves. The lower part of the lightning arrester 6 is cylindrical, and mounting blocks 19 are fixed to the front and rear of the cylinder. Figure 5 As shown, the upper hole 17.1 is slightly larger than the lower part of the lightning arrester 6, which facilitates the passage of the lower end of the lightning arrester 6 and the mounting block 19. After passing through the upper hole 17.1, the lower end of the lightning arrester 6 and the mounting block 19 enter the lower hole 17.2. Figure 4 , Figure 6 As shown, the height of the lower hole 17.2 matches the thickness of the mounting block 19; the lower hole 17.2 is a circular hole, and the diameter of the circular hole 17.2 is slightly larger than the distance between the outermost edges of the two mounting blocks 19. In this way, after the two mounting blocks 19 enter the lower hole 17.2, the lightning arrester 6 can rotate circumferentially, but cannot move up and down or sway left and right.

[0032] In addition, a limit component is provided in the mounting base 16 to prevent the lightning arrester 6 from rotating, thereby further fixing the lightning arrester 6.

[0033] The limiting assembly includes a locking rod 21, which is slidably disposed within the limiting groove of the mounting base 16, with its upper end freely extending outside the mounting base 16. The lower part of the locking rod 21 has a limiting plate located within the limiting groove. A retaining spring 22 is also provided within the limiting groove, and the retaining spring 22 is fitted onto the locking rod 21 above the limiting plate, with its other end connected to the inner wall of the limiting groove. When the locking rod 21 is compressed by the retaining spring 22, its lower end inserts into the retaining hole 19.1 of the mounting block 19, achieving limiting and preventing the lightning arrester 6 from rotating. The final state is as follows. Figure 6 As shown.

[0034] The locking rods 21 are arranged in two sets, side to side. The upper ends of the two locking rods 21 are connected to the pull ring 20. The inner ring structure of the pull ring 20 is similar to that of the upper hole 17.1, which allows the mounting block 19 at the bottom of the lightning arrester 6 to pass through freely.

[0035] For quick installation of the lightning arrester 6: Pull the pull ring 20 upwards, then pass the lower mounting block 19 of the lightning arrester 6 through the upper hole 17.1, and rotate it 90 degrees to change the two mounting blocks 19 from a front-to-back position to a left-to-right position. Release the pull ring 20 to allow the locking rod 21 to engage in the locking hole 19.1, thus completing the installation of the lightning arrester 6. To disassemble, pull the pull ring 20 upwards, rotate it 90 degrees in the opposite direction, and then pull the lightning arrester 6 upwards.

[0036] like Figure 1As shown, the enclosure 1 consists of three side panels (rear, left, and right), a top panel, a bottom panel, and a hinged door at the front. Each side panel is made of a thermally conductive material, which can be an iron-copper alloy, to facilitate heat dissipation from the interior of the enclosure 1.

[0037] A temperature sensor 15 is installed at the upper part of the interior of the enclosure 1, and the temperature sensor 15 is electrically connected to the controller. The temperature sensor 15 can be a Risym DS18B20. The temperature sensor 15 allows for real-time monitoring of the temperature inside the enclosure 1.

[0038] like Figure 7 As shown, to improve heat dissipation, a cooling water tank 23 is provided inside the rear panel. A connecting pipe 24 is installed at the upper end of the cooling water tank 23, and the upper end of the connecting pipe 24 extends into the rain cover box 4. When rainwater falls into the rain cover box 4, the rainwater will remain inside the rain cover box 4. The rainwater can fall into the cooling water tank 23 through the connecting pipe 24. The rainwater moves along the cooling water tank 23, which can cool and dissipate heat from the box 1.

[0039] like Figure 1 , Figure 7 As shown, solenoid valves 5 are installed at the inlet and outlet of the connecting pipe 24, and are electrically connected to the controller. The solenoid valve 5 can be a Z101 model. When the temperature sensor 15 detects that the temperature inside the housing 1 has risen to a certain degree, the controller controls the solenoid valve 5 at the inlet to open and the solenoid valve 5 at the outlet to close, allowing rainwater to enter the cooling water tank 23 through the connecting pipe 24 to dissipate heat from the housing 1. After heat dissipation is complete, the solenoid valve 5 at the inlet is closed, the solenoid valve 5 at the outlet is opened to drain the water, and then the solenoid valve 5 at the outlet is closed again.

[0040] In addition, a filter screen 10 is installed on the rain cover box 4. The filter screen 10 is a cover with holes on the surface. The filter screen 10 is located above the connecting pipe 24. Under the action of the filter screen 10, impurities in the rainwater can be prevented from entering the interior of the cooling water tank 23, preventing the cooling water tank 23 from being blocked and ensuring the long-term use of the cooling water tank 23.

[0041] like Figure 2 As shown, ventilation slots are formed on the surfaces of the two opposite side panels. These slots consist of multiple rectangular openings, which facilitates airflow inside the enclosure 1. The ventilation slots on the two side panels are symmetrically distributed, which helps to accelerate airflow and facilitates heat dissipation for the electronic components inside the enclosure 1.

[0042] Ventilation boxes 11 are fixedly installed on the inner walls of the ventilation slots on both side panels, and electric fans are built into the ventilation boxes 11. The electric fan on one side blows air into the box 1, while the ventilation fan on the other side draws air out of the box 1, which can accelerate the air circulation inside the box 1 and enhance the heat dissipation effect.

[0043] Air guide boxes 2 are fixedly installed on both side panels outside the ventilation slots. Air outlets are located at the lower end of the air guide boxes 2, which face downwards to prevent water from entering and to protect the electronic components inside the enclosure 1. A dust filter is removably installed inside the lower end of the air guide boxes 2 to prevent dust from entering the enclosure 1 and damaging the electronic components.

[0044] like Figure 1-2 As shown, four support rods 8 slide through the upper plate of the air guide box 2. Connecting plates 7 are fixedly installed on the upper ends of the four support rods 8. A sealing plate 13 is installed inside the air guide box 2 at the lower end of the support rods 8. A return spring 9 is sleeved on the support rods 8 between the upper outer end of the air guide box 2 and the connecting plate 7. The upper end of the return spring 9 is connected to the connecting plate 7, and the lower end is connected to the outer end face of the air guide box 2.

[0045] An adsorption block 14 (iron) is provided on the upper end face of the sealing plate 13. An electromagnetic coil 12, which is magnetically connected to the adsorption block 14, is installed on the top surface of the air guide box 2. The electromagnetic coil 12 has the effect of generating magnetic force when energized and can be magnetically connected to the adsorption block 14 to limit the sealing plate 13.

[0046] The solenoid coil 12 can be of model ZYJ-240 / 1.2, and the solenoid coil 12 is electrically connected to the controller.

[0047] Under normal conditions, the electromagnet 12 is energized, causing the sealing plate 13 to adhere to the inner top surface of the air guide box 2, the connecting plate 7 to move upwards, and the return spring 9 to be in a stretched state. When the temperature sensor 15 senses that the internal temperature of the enclosure 1 has risen to a certain temperature, the ventilation box 11 stops operating, the electromagnet 12 is de-energized and loses its magnetism, the return spring 9 returns to its original position from the stretched state, and the connecting plate 7 and the sealing plate 13 move downwards under the action of gravity, causing the sealing plate 13 to block the air outlet, sealing the inside of the enclosure 1. In the event of a fire, this prevents oxygen from entering and automatically extinguishes the fire when there is insufficient oxygen inside.

Claims

1. A novel surge protection instrument power distribution box, characterized in that: Includes a housing (1), with a rain cover box (4) fixed to the upper end of the housing (1) via a support block (3), and a mounting base (16) fixed inside the rain cover box (4). A lightning arrester (6) is detachably installed on the mounting base (16), and the lightning arrester (6) is plugged into the grounding wire (18). The mounting base (16) has a mounting hole (17) inside, and the corresponding lightning arrester (6) has a mounting block (19) fixed at the front and rear of the lower end. The lower part of the lightning arrester (6) is inserted into the mounting hole (17) and locked to the mounting block (19) by a limiting component. A cooling water tank (23) is provided in the back side panel of the box (1). The cooling water tank (23) penetrates the side panel of the box (1). The upper end of the cooling water tank (23) is connected to the connecting pipe (24). The connecting pipe (24) extends into the rain cover box (4).

2. The novel lightning protection instrument power distribution box according to claim 1, characterized in that: The mounting hole (17) includes an upper hole (17.1) and a lower hole (17.2), which are interconnected. The upper hole (17.1) is a circular hole with the same size as the lower end of the lightning arrester (6), and the circular hole has grooves at the front and back that match the size of the mounting block (19). The lower hole (17.2) is a circular hole with a diameter that matches the distance between the outermost edges of the two mounting blocks (19). The height of the lower hole (17.2) matches the thickness of the mounting block (19).

3. The novel lightning protection instrument power distribution box according to claim 2, characterized in that: The limiting component includes a locking rod (21), which is slidably disposed in the limiting groove of the mounting base (16) and its upper end extends freely out of the mounting base (16); the part of the locking rod (21) located in the limiting groove is equipped with a limiting plate, and a locking spring (22) is sleeved on the locking rod (21) above the limiting plate. The lower part of the locking rod (21) is squeezed by the locking spring (22) and engaged with the locking hole (19.1) of the mounting block (19).

4. A novel lightning protection instrument power distribution box according to claim 3, characterized in that: The levers (21) are arranged in two sets on the left and right, and the upper ends of the two levers (21) are connected to the pull rings (20).

5. A novel lightning protection instrument power distribution box according to claim 1, characterized in that: Ventilation slots are provided on the left and right side panels of the box (1). A ventilation box (11) is fixedly installed on the inner side wall of the ventilation slot. An electric fan is installed inside the ventilation box (11). The electric fan on one side blows air, and the electric fan on the other side exhausts air.

6. A novel lightning protection instrument power distribution box according to claim 5, characterized in that: An air guide box (2) is fixedly installed on the outer wall of the ventilation slot on the box (1). An air outlet is opened at the lower end of the air guide box (2), and a dustproof net can be detachably installed at the air outlet.

7. A novel lightning protection instrument power distribution box according to claim 6, characterized in that: A support rod (8) is slidably inserted on the upper plate of the air guide box (2). The upper end of the support rod (8) is connected to the connecting plate (7) outside the air guide box (2), and the lower end of the support rod (8) is connected to the sealing plate (13) inside the air guide box (2). An adsorption block (14) is fixed on the upper end of the sealing plate (13). The adsorption block (14) is magnetically adsorbed and fixed or detached from the electromagnetic coil (12) on the top surface inside the air guide box (2).

8. A novel lightning protection instrument power distribution box according to claim 7, characterized in that: A reset spring (9) is fitted on the support rod (8). The upper end of the reset spring (9) is connected to the connecting plate (7), and the lower end is connected to the outer end face of the air guide box (2).

Images