Lightning protection device of power equipment

Abstract

The invention relates to the field of power distribution devices, in particular to a lightning protection device of power equipment, which comprises a box body, an induction assembly and a mounting plate, a movable groove is formed in the inner wall of the box body, the mounting plate is movably arranged in the movable groove, a side plate is arranged on the side wall of one side of the mounting plate, and a telescopic cylinder is mounted between the bottom of the side plate and the bottom wall of the box body. The sensing assembly comprises a sensing bin, a contact switch is arranged at the top of a cavity of the sensing bin, and a floating ball is placed in the cavity of the sensing bin; when the water surface rises and submerges the box body, the telescopic air cylinder is started through the induction assembly to drive the mounting plate to move upwards, the situation that electronic elements on the mounting plate are submerged by water and damaged due to short circuit is avoided, the situation that the electronic elements in the box body leak electricity after water enters the box body is avoided, and meanwhile the situation that people are injured due to electricity leakage of the electronic elements in the box body is avoided. After power failure, the electronic components and the switch are submerged by water, so that the condition of short circuit damage can be reduced, and the loss of equipment submerged by water is reduced.

Description

Technical Field

[0001] The present invention relates to the field of distribution devices, and specifically to a lightning protection device for power equipment. Background Art

[0002] The power equipment is specifically a distribution box used for power distribution near the water surface, and is used to supply power to street lights and water valves around lakes, parks, reservoirs, etc. Since most of the areas near the water surface are open areas, the distribution box needs to have lightning protection functions.

[0003] The existing distribution boxes used near the water surface are the same as those used in other places and only have the function of power distribution. When used near the water surface, it is necessary to consider the rising water level during the flood season, which may cause the distribution box to be flooded. Directly installing the distribution box on a high pole can avoid the possibility of the distribution box being flooded, but it makes it inconvenient to operate the distribution box usually. In addition, there are more mosquitoes and higher air humidity near the water surface. Mosquitoes are easily attracted by the light emitted by the electronic components in the distribution box. After entering the distribution box and contacting the switch, they die, resulting in short circuits in some circuits.

[0004] The above content is only used to assist in understanding the technical solution of the present invention, and does not represent an admission that the above content is the closest prior art. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a lightning protection device for power equipment that can avoid short circuits and damage to the circuits in the distribution box caused by waterlogging.

[0006] To achieve the above object, the technical solution of the present invention is realized as follows. It includes a box body, an induction component, and a mounting plate. An activity slot is opened on the inner wall of the box body. The mounting plate is movably arranged in the activity slot. A side plate is arranged on one side side wall of the mounting plate. A telescopic cylinder is installed between the bottom of the side plate and the bottom wall of the box body. The induction component includes an induction chamber. A contact switch is arranged at the top of the chamber of the induction chamber. A floating ball is placed in the chamber of the induction chamber.

[0007] Specifically, a signal transmitter is arranged on the telescopic cylinder. The signal transmitter is used to receive the signal of the contact switch and transmit the signal to the host and the operator while receiving the signal. The model of the signal transmitter is a wireless serial port transceiver module for remote data communication transmission RS232.

[0008] In specific implementation, when the water level rises and is about to flood the box body, the water first enters the induction chamber. Then, it pushes the floating ball in the induction chamber to move up and touch the top of the induction chamber, squeezing the contact switch to contract. Subsequently, the telescopic cylinder starts to work, driving the mounting plate to move up in the activity slot, thereby avoiding the electronic components and switches on the mounting plate from getting wet.

[0009] Further, a power switch and a number of power distribution switches are provided on the side wall of the mounting plate, and rubber columns are provided on the inner side wall of the box body, and the rubber columns are located above the power switch; with such a design, after the mounting plate is moved up to a certain height, the power switch is toggled by the rubber columns to cut off the power supply of the electronic components in the box body, preventing water from entering the box body and causing electric leakage of the electronic components in the box body. At the same time, it avoids the situation of electric shock caused by electric leakage of the electronic components in the box body. The electronic components and switches after power-off being flooded by water can reduce the occurrence of short-circuit damage, thereby reducing the losses after the equipment is flooded by water.

[0010] Further, a wire tensioning assembly is provided on the inner side wall of the box body. The wire tensioning assembly includes a mounting frame welded to the inner side wall of the box body. An activity plate is movably arranged in the mounting frame. A semi-circular plate is arranged on one side of the activity plate. A wire groove is formed on the arc surface of the semi-circular plate. A telescopic spring is installed between the mounting frame and the inner side wall of the box body; with such a design, the wire tensioning assembly straightens the wires reserved for the upward movement height of the mounting plate, preventing the wires reserved for not affecting the upward movement of the mounting plate from getting entangled. The wires are wound in the wire groove on the semi-circular plate. When the mounting plate moves upward, the wires drive the semi-circular plate to squeeze the telescopic spring, causing the semi-circular plate to move in the mounting frame. When the mounting plate moves downward, the wires in the wire groove become loose, and the telescopic spring pushes the semi-circular plate to move, so that the wires are always in a straightened state and will not get entangled.

[0011] Further, an inlet pipe is provided at the top of the semi-circular plate, and a wire outlet pipe is provided at the bottom of the box body. The tops of both the inlet pipe and the wire outlet pipe are outward-expanded arc-shaped openings; with such a design, the reserved wires are wound in the wire groove through the inlet pipe, and the wire outlet pipe is used for the external connection lines of the box body. The outward-expanded arc-shaped openings at the tops of the inlet pipe and the wire outlet pipe can make the installation of the lines more convenient, and at the same time protect the wires when the wires move, avoiding the situation of wire friction and breakage.

[0012] Further, the box body includes a top bin provided at the top. Reel drums are provided on both the inner wall of the top of the top bin and the inner wall of the bottom of the box body. A winding roller is arranged in the reel drum. A spiral spring is arranged on one side of the winding roller. A screen is wound on the winding roller. The other end of the screen is provided with a connection frame, and the screen is connected to the mounting plate through the connection frame; with such a design, the screen prevents mosquitoes from contacting the electronic components and switches in the box body, so that the situation of short circuits in some circuits caused by the death of mosquitoes after contacting the switches and electronic components will not occur. And through the use of the winding roller and the spiral spring in the reel drum, the screen does not affect the up and down movement of the mounting plate while not affecting the sealing.

[0013] Furthermore, a lightning protection component is provided at the top of the top bin. The lightning protection component includes a lightning rod which is arranged at the top of the top bin. The bottom of the lightning rod is connected with a grounding wire, and the grounding wire is installed on the box body through an insulating support frame. With such a design, the lightning rod attracts lightning strikes, and then the lightning strikes are conducted into the ground through the grounding wire. The lightning rod and the grounding wire are installed through the insulating support frame to prevent the lightning strikes from affecting the box body.

[0014] Furthermore, a box door is installed on one side of the box body, and a ventilation grille is arranged on the other side of the box body. With such a design, the heat dissipation and ventilation capacity of the box body are improved through the ventilation grille.

[0015] The beneficial effects of the present invention are as follows:

[0016] In the present invention, through the use of the induction component, the movable installation plate in the box body and the telescopic cylinder, when the water level rises and submerges the box body, after being sensed by the induction component, the telescopic cylinder is started to drive the installation plate to move upward, avoiding the situation that the electronic components on the installation plate are submerged by water and cause short - circuit damage.

[0017] In the present invention, through the use of the rubber column, when the installation plate moves upward, the power switch on the installation plate is toggled to cut off the power supply in the box body, preventing water from entering the box body and causing electric leakage of the electronic components in the box body. At the same time, it avoids the situation of electric shock caused by the electric leakage of the electronic components in the box body. The powered - off electronic components and switches being submerged by water can reduce the occurrence of short - circuit damage, thereby reducing the losses after the equipment is submerged by water.

[0018] In the present invention, through the use of the lightning protection component, it can effectively prevent the equipment from being damaged by short - circuit caused by lightning strikes.

[0019] In the present invention, through the use of the winding drum, and in cooperation with the ventilation grille being opened in the direction of the back of the installation plate, most of the light emitted by the electronic components on the installation plate is blocked, reducing the entry of mosquitoes into the box body. At the same time, the mosquito net in the winding drum blocks the mosquitoes, preventing the mosquitoes from entering the side of the installation plate where the electronic components are installed, so that the situation where the mosquitoes touch the switches and electronic components and die, resulting in short - circuits in some circuits, will not occur. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a front three - dimensional structural schematic diagram of the lightning protection device for power equipment provided by the present invention;

[0021] Figure 2 is a back three - dimensional structural schematic diagram of the lightning protection device for power equipment provided by the present invention;

[0022] Figure 3 is a front three - dimensional structural schematic diagram of the lightning protection device for power equipment provided by the present invention after removing the box door;

[0023] Figure 4 This is the reverse three-dimensional structure schematic diagram of the lightning protection device for power equipment after removing the cabinet door provided by the present invention;

[0024] Figure 5 This is the connection structure schematic diagram of the mounting plate, winding drum and telescopic cylinder provided by the present invention;

[0025] Figure 6 is Figure 1 the partial enlarged schematic diagram of part A provided;

[0026] Figure 7 is Figure 5 the partial enlarged schematic diagram of part B provided.

[0027] Explanation of reference numerals:

[0028] 1. Cabinet; 11. Cabinet door; 12. Top bin; 13. Ventilation grille; 14. Rubber column; 15. Activity slot; 2. Induction component; 21. Induction bin; 22. Contact switch; 23. Floating ball; 3. Lightning protection component; 31. Lightning rod; 32. Ground wire; 33. Insulating support frame; 4. Mounting plate; 41. Power switch; 42. Distribution switch; 43. Side plate; 5. Wire tensioning component; 51. Mounting frame; 52. Movable plate; 53. Semi-circular plate; 54. Wiring groove; 55. Inlet pipe; 56. Telescopic spring; 6. Winding drum; 61. Screen; 62. Connection frame; 63. Winding roller; 64. Helical spring; 7. Wiring pipe; 8. Telescopic cylinder; 9. Signal transmitter. Detailed implementation manners

[0029] Next, the present invention will be further described in detail with reference to the drawings and embodiments. Obviously, the described embodiments are only a part of the embodiments of the invention, rather than all the embodiments. Without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the invention without creative efforts shall fall within the protection scope of the invention.

[0030] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the invention, the directional indications are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0031] In addition, if the description of "first", "second", etc. is involved in the invention embodiment, the description of "first", "second", etc. is only for descriptive purposes and cannot be construed as indicating or implying its relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and / or" appearing throughout the text includes three parallel scenarios. Taking "A and / or B" as an example, it includes scenario A, or scenario B, or the scenario where both A and B are satisfied simultaneously. In addition, "a plurality of" means two or more. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the invention.

[0032] See Figures 1 to 7 :

[0033] A lightning protection device for an electrical equipment of the present invention includes a box body 1, an induction component 2, and a mounting plate 4. An activity groove 15 is formed on the inner wall of the box body 1. The mounting plate 4 is movably arranged in the activity groove 15. A side plate 43 is arranged on one side wall of the mounting plate 4. A telescopic cylinder 8 is installed between the bottom of the side plate 43 and the bottom wall of the box body 1. The induction component 2 includes an induction bin 21. A contact switch 22 is arranged at the top of the chamber of the induction bin 21. A floating ball 23 is placed in the chamber of the induction bin 21.

[0034] Specifically, a signal transmitter 9 is arranged on the telescopic cylinder 8. The signal transmitter 9 is used to receive the signal of the contact switch 22 and send the signal to the host and the operator while receiving the signal. The model of the signal transmitter 9 is a wireless serial port transceiver module for remote data communication transmission RS232.

[0035] In specific implementation, when the water level rises and is about to submerge the box body 1, the water first enters the induction bin 21, and then pushes the floating ball 23 in the induction bin 21 to move upward to the top of the induction bin 21, squeezing the contact switch 22 to contract. Subsequently, the telescopic cylinder 8 starts to work, driving the mounting plate 4 to move upward in the activity groove 15, so as to prevent the electronic components and switches on the mounting plate 4 from getting wet.

[0036] In the present invention, a power switch 41 and a plurality of power distribution switches 42 are arranged on the side wall of the mounting plate 4, and rubber columns 14 are arranged on the inner side wall of the box body 1, and the rubber columns 14 are located above the power switch 41. With such a design, after the mounting plate 4 is moved up to a certain height, the power switch 41 is toggled by the rubber columns 14 to cut off the power supply of the electronic components in the box body 1, avoiding the leakage of the electronic components in the box body 1 caused by water entering the box body 1. At the same time, it avoids the situation of electric shock caused by the leakage of the electronic components in the box body 1. The electronic components and switches after power-off being flooded by water can reduce the occurrence of short-circuit damage, thereby reducing the losses after the equipment is flooded by water.

[0037] In the present invention, a wire tensioning assembly 5 is arranged on the inner side wall of the box body 1. The wire tensioning assembly 5 includes a mounting frame 51 welded to the inner side wall of the box body 1. An activity plate 52 is movably arranged in the mounting frame 51. A semi-circular plate 53 is arranged on one side of the activity plate 52. A wire routing groove 54 is formed on the arc surface of the semi-circular plate 53. A telescopic spring 56 is installed between the mounting frame 51 and the inner side wall of the box body 1. With such a design, the wire tensioning assembly 5 straightens the wires reserved for the upward movement height of the mounting plate 4, avoiding the entanglement of the wires reserved for not affecting the upward movement of the mounting plate 4. The wires are wound in the wire routing groove 54 on the semi-circular plate 53. When the mounting plate 4 moves upward, the wires drive the semi-circular plate 53 to squeeze the telescopic spring 56, causing the semi-circular plate 53 to move in the mounting frame 51. When the mounting plate 4 moves downward, the wires in the wire routing groove 54 become loose, and the telescopic spring 56 pushes the semi-circular plate 53 to move, so that the wires are always in a straightened state and will not be entangled.

[0038] In the present invention, an inlet pipe 55 is arranged at the top of the semi-circular plate 53, and a wire outlet pipe 7 is arranged at the bottom of the box body 1. The tops of the inlet pipe 55 and the wire outlet pipe 7 are both outwardly expanding arc-shaped openings. With such a design, the reserved wires are wound in the wire routing groove 54 through the inlet pipe 55, and the wire outlet pipe 7 is used for the external connection lines of the box body 1. The outwardly expanding arc-shaped openings at the tops of the inlet pipe 55 and the wire outlet pipe 7 can make the installation of the lines more convenient. At the same time, it protects the wires when the wires move, avoiding the situation of wire friction and breakage.

[0039] In the present invention, the box body 1 includes a top bin 12 provided at the top. On the inner wall of the top of the top bin 12 and on the inner wall of the bottom of the box body 1, winding drums 6 are provided. A winding roller 63 is provided inside the winding drum 6. A spiral spring 64 is provided on one side of the winding roller 63. A screen 61 is wound around the winding roller 63. The other end of the screen 61 is provided with a connecting frame 62. The screen 61 is connected to the mounting plate 4 through the connecting frame 62. With this design, the screen 61 prevents mosquitoes and insects from coming into contact with the electronic components and switches inside the box body 1, so that the situation where the circuit is short-circuited due to the death of mosquitoes and insects after contacting the switches and electronic components will not occur. Moreover, by using the winding roller 63 and the spiral spring 64 inside the winding drum 6, the screen 61 can move up and down without affecting the sealing and without affecting the mounting plate 4.

[0040] In the present invention, a lightning protection component 3 is provided on the top of the top bin 12. The lightning protection component 3 includes a lightning rod 31. The lightning rod 31 is provided on the top of the top bin 12. The bottom of the lightning rod 31 is connected to a grounding wire 32. The grounding wire 32 is installed on the box body 1 through an insulating support frame 33. With this design, the lightning rod 31 attracts lightning strikes, and then the lightning strikes are conducted into the ground through the grounding wire 32. The lightning rod 31 and the grounding wire 32 are installed through the insulating support frame 33 to prevent the lightning strikes from affecting the box body 1.

[0041] In the present invention, a box door 11 is installed on one side of the box body 1, and a ventilation grille 13 is provided on the other side of the box body 1. With this design, the ventilation grille 13 improves the heat dissipation and ventilation capabilities of the box body 1.

[0042] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A lightning protection device for electric power equipment, characterized in that , comprising a box body (1), a sensing component (2), and a mounting plate (4); a movable groove (15) is provided on the inner wall of the box body (1); the mounting plate (4) is movably arranged in the movable groove (15); a side plate (43) is provided on one side wall of the mounting plate (4); a telescopic cylinder (8) is installed between the bottom of the side plate (43) and the bottom wall of the box body (1); the sensing component (2) comprises a sensing bin (21); a contact switch (22) is provided on the top of the chamber of the sensing bin (21); and a float (23) is placed in the chamber of the sensing bin (21).

2. The lightning protection device for electric power equipment according to claim 1, characterized in that: A power switch (41) and a plurality of power distribution switches (42) are arranged on the side wall of the mounting plate (4), a rubber column (14) is arranged on the inner side wall of the box body (1), and the rubber column (14) is located above the power switch (41).

3. The lightning protection device for electric power equipment according to claim 2, characterized in that: A wire-tensioning assembly (5) is arranged on the inner wall of the box body (1), and the wire-tensioning assembly (5) comprises a mounting frame (51) welded to the inner wall of the box body (1), a movable plate (52) is movably arranged in the mounting frame (51), a semicircular plate (53) is arranged on one side of the movable plate (52), a wire routing groove (54) is provided on the arc surface of the semicircular plate (53), and a telescopic spring (56) is installed between the mounting frame (51) and the inner wall of the box body (1).

4. The lightning protection device for electric power equipment according to claim 3, characterized in that: A wire inlet pipe (55) is arranged on the top of the semicircular plate (53), and a wire routing pipe (7) is arranged on the bottom of the box body (1); the tops of the wire inlet pipe (55) and the wire routing pipe (7) are both outwardly expanded arc-shaped openings.

5. The lightning protection device for electric power equipment according to claim 4, characterized in that: The box body (1) comprises a top bin (12) arranged at the top, a winding drum (6) is arranged on the inner wall of the top of the top bin (12) and the inner wall of the bottom of the box body (1), a winding roller (63) is arranged inside the winding drum (6), a spiral spring (64) is arranged on one side of the winding roller (63), a gauze (61) is wound around the winding roller (63), a connecting frame (62) is arranged at the other end of the gauze (61), and the gauze (61) is connected to the mounting plate (4) through the connecting frame (62).

6. The lightning protection device for electric power equipment according to claim 5, characterized in that: A lightning protection assembly (3) is arranged on the top of the top bin (12), and the lightning protection assembly (3) comprises a lightning rod (31). The lightning rod (31) is arranged on the top of the top bin (12), and a grounding wire (32) is connected to the bottom of the lightning rod (31). The grounding wire (32) is installed on the box body (1) through an insulating support frame (33).

7. The lightning protection device for electric power equipment according to claim 6, characterized in that: A box door (11) is installed on one side of the box body (1), and a ventilation grille (13) is provided on the other side of the box body (1).

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