High-low voltage switch cabinet with built-in pressure relief structure

Abstract

The utility model discloses a high-low voltage switch cabinet with a built-in pressure relief structure, and relates to the technical field of high-low voltage cabinets, in particular to a high-low voltage switch cabinet with a built-in pressure relief structure, which comprises a cabinet body, supporting legs arranged at the bottom of the cabinet body, electric fans arranged on two sides of the cabinet body, and dust covers arranged outside the electric fans. An air bellow is arranged on the inner side wall of the cabinet body, a dustproof net is arranged in the air bellow, a first telescopic rod is arranged at the front end of the dustproof net, a pressing switch is arranged at the bottom of the first telescopic rod, a first spring is arranged on the outer side of the pressing switch, and a pressing rod is arranged at the front end of the first spring. According to the high-low voltage switch cabinet with the built-in pressure relief structure, the air bag and the baffle plate are arranged, so that the high-low voltage switch cabinet with the built-in pressure relief structure has the effect of timely relieving pressure in the cabinet body, and the pressure in the cabinet body can be discharged through the electric fans on the two sides in the use process, so that the effect of protecting modules in the cabinet body is achieved; the purpose of releasing pressure in the cabinet body in time is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of high and low voltage cabinets, in particular to a high and low voltage switch cabinet with a built-in pressure relief structure. Background Art

[0002] The switch cabinet is an electrical equipment. The external line of the switch cabinet first enters the main control switch inside the cabinet, and then enters the sub-control switch. Each branch is set according to its needs. Such as instruments, automatic control, motor magnetic switches, various AC contactors, etc. Some also have high-voltage and low-voltage switch cabinets, with high-voltage busbars, such as power plants, etc. Some are also equipped with low-frequency load shedding to protect the main equipment. During the operation of the switch cabinet, if a short circuit fault occurs in the primary circuit, high-temperature and high-pressure gases will be instantly generated inside the cabinet. If these high-pressure gases are not discharged from the cabinet in time, it is easy to cause an explosion accident, which will damage the adjacent switch cabinets and even endanger personal safety in serious cases.

[0003] A high and low voltage switch cabinet with a built-in pressure relief structure is disclosed in the Chinese utility model patent application disclosure CN216289610U. Although the high and low voltage switch cabinet with a built-in pressure relief structure can simply complete the internal pressure relief, the high and low voltage switch cabinet with a built-in pressure relief structure does not release the internal pressure of the cabinet completely, and when leakage occurs inside the cabinet, it cannot be powered off in time for protection, thereby causing a series of accidents. A high and low voltage switch cabinet with a built-in pressure relief structure is now invented to solve the above problems. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a high and low voltage switch cabinet with a built-in pressure relief structure, which solves the problems raised in the above background technology.

[0006] (II) Technical solution

[0007] To achieve the above purpose, the utility model is implemented through the following technical solutions: a high and low voltage switch cabinet with a built-in pressure relief structure, including a cabinet body, a supporting foot is arranged at the bottom of the cabinet body, electric fans are arranged on both sides of the cabinet body, a dust cover is arranged on the outside of the electric fan, a bellows is arranged on the inner side wall of the cabinet body, a dust net is arranged inside the bellows, a first telescopic rod is arranged at the front end of the dust net, a push switch is arranged at the bottom of the first telescopic rod, a spring 1 is arranged on the outside of the push switch, a pressure rod is arranged at the front end of the spring 1, a baffle is arranged at the other end of the pressure rod, an active cavity is arranged at the center of the baffle plate, an air bag is arranged inside the active cavity, a wind net is arranged on the front surface of the bellows, and a wind net is arranged on the upper surface of the cabinet body. An insulating shell is provided on the surface, an insulating slide rod is provided inside the insulating shell, a spring 2 is provided outside the insulating slide rod, a metal wire column is provided above the spring 2, a second telescopic rod is provided at both ends of the metal wire column, a spring baffle is provided on the left side of the second telescopic rod, a pull rod is provided on the left side of the spring baffle, a spring 3 is provided inside the pull rod, a wire bump is provided above the insulating slide rod, two electromagnets are provided at the bottom of the insulating shell, an indicator light is provided outside the insulating shell, a lighting lamp is provided in front of the insulating shell, induction switches are provided on both sides of the lighting lamp, a double door is provided in the front of the cabinet, a handle is provided at the center of the double door, and a safety lock is provided on the right side of the double door.

[0008] Optionally, there are six electric fans, three in each group, symmetrically arranged on both sides of the cabinet, and the number and positions of the dustproof nets correspond to the number and positions of the electric fans.

[0009] Optionally, there are two bellows, and the bellows are symmetrically arranged on the inner walls on both sides of the cabinet with the central axis of the cabinet as the center of symmetry.

[0010] Optionally, the width and length of the baffle are the same as the length and width of the wind net, and the position of the baffle corresponds to the position of the wind net.

[0011] Optionally, wire 1 is provided at both ends of the wire protrusion, the right side of wire 1 is connected to the indicator light and various modules inside the cabinet, and the middle wire protrusion is connected to the live wire.

[0012] Optionally, two ends of the electromagnet are provided with a second conductor, the right side of the second conductor is connected to the indicator light, and the left side of the second conductor is connected to the metal conductor column.

[0013] Optionally, a limiting plate is provided at the front end of the pressure rod, a pressing block is provided at the front end of the limiting plate, and the edge position of the limiting plate corresponds to the position of the spring one.

[0014] Optionally, there are two safety locks, which are symmetrically arranged on the upper and lower sides of the bi-directional doors and close to the center of the bi-directional doors.

[0015] (III) Beneficial effects

[0016] The utility model provides a high and low voltage switch cabinet with a built-in pressure relief structure, which has the following beneficial effects:

[0017] 1. The high and low voltage switch cabinet with built-in pressure relief structure has the effect of timely relieving pressure inside the cabinet through the arrangement of the air bag, the baffle, the wind net, the electric fan and the first telescopic rod. Through the coordinated arrangement of the air bag, the baffle, the wind net, the electric fan and the first telescopic rod, the pressure inside the cabinet can be discharged through the electric fans on both sides during use, thereby playing a role in protecting the modules inside the cabinet and achieving the purpose of timely relieving pressure inside the cabinet.

[0018] 2. The high and low voltage switch cabinet with built-in pressure relief structure has the effect of leakage alarm and anti-electric shock through the setting of insulating slide rod, spring 2, spring baffle and electromagnet. Through the coordinated setting of insulating slide rod, spring 2, spring baffle and electromagnet, the box body can be insulated and alarm can be sounded when leakage occurs during use, thereby playing a role of preventing electric shock and achieving the purpose of leakage alarm and anti-electric shock. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 It is a structural schematic diagram of the utility model in a front view;

[0021] Figure 3 It is a schematic diagram of the structure of the utility model from the side;

[0022] Figure 4 It is a schematic diagram of the internal structure of the utility model;

[0023] Figure 5 for Figure 4 A schematic diagram of the enlarged structure at A in the middle;

[0024] Figure 6 for Figure 4 Schematic diagram of the enlarged structure at B.

[0025] In the figure: 1. cabinet; 2. supporting feet; 3. electric fan; 4. dust cover; 5. bellows; 6. dust net; 7. first telescopic rod; 8. push switch; 9. spring one; 10. pressure rod; 11. limit plate; 12. pressure block; 13. baffle; 14. movable cavity; 15. air bag; 16. wind net; 17. insulating shell; 18. insulating slide rod; 19. spring two; 20. metal wire column; 21. second telescopic rod; 22. spring baffle; 23. pull rod; 24. spring three; 25. wire bump; 26. electromagnet; 27. indicator light; 28. lighting lamp; 29. ​​induction switch; 30. double door; 31. handle; 32. safety lock; 33. wire one; 34. wire two. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0027] Example 1

[0028] A high and low voltage switch cabinet with a built-in pressure relief structure includes a cabinet 1, a supporting foot 2 is provided at the bottom of the cabinet 1, electric fans 3 are provided on both sides of the cabinet 1, dust covers 4 are provided on the outside of the electric fans 3, there are six electric fans 3, three of which are symmetrically arranged on both sides of the cabinet 1, and the number and position of dust screens 6 correspond to the number and position of the electric fans 3, a bellows 5 is provided on the inner side wall of the cabinet 1, there are two bellows 5, and the bellows 5 are symmetrically arranged on the inner walls of both sides of the cabinet 1 with the central axis of the cabinet 1 as the symmetry center, a dust screen 6 is provided inside the bellows 5, a first telescopic rod 7 is provided at the front end of the dust screen 6, and the first A push switch 8 is provided at the bottom of the telescopic rod 7, a spring 9 is provided on the outside of the push switch 8, a pressure rod 10 is provided at the front end of the spring 9, a limit plate 11 is provided at the front end of the pressure rod 10, a pressure block 12 is provided at the front end of the limit plate 11, and the edge position of the limit plate 11 corresponds to the position of the spring 9, a baffle 13 is provided at the other end of the pressure rod 10, an active cavity 14 is provided at the center of the baffle 13, an air bag 15 is provided inside the active cavity 14, and a wind net 16 is provided on the front surface of the bellows 5, the width and length of the baffle 13 are the same as the length and width of the wind net 16, and the position of the baffle 13 corresponds to the position of the wind net 16.

[0029] In order to achieve the effect of timely pressure relief inside the cabinet, as shown in the attached Figure 1-6As shown, the present application adopts the following structure, through the cooperation of the airbag 15, the baffle 13, the wind net 16, the electric fan 3 and the first telescopic rod 7, during the use, the cabinet 1 will generate high temperature during long-term use, so that the interior of the cabinet 1 is in a high-pressure state, when the interior of the cabinet 1 does not reach the temperature, the airbag 15 is in a relaxed state, at this time, the baffle 13 and the wind net 16 are fitted together through the spring 9 inside the first telescopic rod 7, and the interior of the cabinet 1 is formed into a closed state, when the temperature reaches a certain value, the airbag 15 begins to expand, and pushes the baffle 13 to the side away from the wind net 16, and the baffle 13 pushes the pressure rod 10 to move inward, through the limit The positioning plate 11 compresses the spring 19, and when the pressure block 12 is pressed to the push switch 8, the electric fan 3 starts to work, and the electric fans 3 on the left and right rotate in opposite directions. The electric fan 3 on the left allows external air to enter the interior of the bellows 5 through the dust cover 4, and then the external air passes through the dustproof net 6 for dust removal, and then enters the interior of the cabinet 1 from the wind net 16 through the gap between the baffle 13 and the bellows 5, cooling and relieving the pressure inside the cabinet 1, and then the exchanged gas is discharged from the bellows 5 on the right through the electric fan 3 on the right to the outside of the cabinet 1, ensuring that the temperature and pressure inside the cabinet 1 are constant, thereby achieving the effect of timely relieving the pressure inside the cabinet;

[0030] A high and low voltage switch cabinet with a built-in pressure relief structure, wherein an insulating shell 17 is arranged on the upper surface of the cabinet body 1, an insulating slide bar 18 is arranged inside the insulating shell 17, a spring 2 is arranged outside the insulating slide bar 18, a metal wire column 20 is arranged above the spring 2 19, a second telescopic rod 21 is arranged at both ends of the metal wire column 20, a spring baffle 22 is arranged on the left side of the second telescopic rod 21, a pull rod 23 is arranged on the left side of the spring baffle 22, a spring 3 24 is arranged inside the pull rod 23, a wire protrusion 25 is arranged above the insulating slide bar 18, two electromagnets 26 are arranged at the bottom of the insulating shell 17, an indicator light 27 is arranged outside the insulating shell 17, and two ends of the wire protrusion 25 are arranged There is a wire 1 33, the right side of the wire 1 33 is connected to the indicator light 27 and each module inside the cabinet 1, the middle wire protrusion 25 is connected to the live wire, wire 2 34 is provided at both ends of the electromagnet 26, the right side of the wire 2 34 is connected to the indicator light 27, and the left side of the wire 2 34 is connected to the metal wire column 20, a lighting lamp 28 is provided in front of the insulating shell 17, and induction switches 29 are provided on both sides of the lighting lamp 28, a double door 30 is provided in front of the cabinet 1, a handle 31 is provided at the center of the double door 30, and a safety lock 32 is provided on the right side of the double door 30. There are two safety locks 32, which are symmetrically arranged on the upper and lower sides of the double door 30 and close to the center of the double door 30.

[0031] In order to achieve the effect of leakage alarm and electric shock prevention, as shown in the attached Figure 4 , 5As shown, the present application adopts the following structure, through the cooperation of the insulating slide bar 18, the spring two 19, the spring baffle 22 and the electromagnet 26, during use, under normal circumstances, the spring two 19 matched with the insulating slide bar 18 will push the metal wire column 20 against the wire protrusion 25, and the wire one 33 is connected to the live wire. At this time, the indicator light 27 is always on. When leakage occurs, the metal wire column 20 will generate current, and the metal wire column 20 will be connected to the wire two 34. Current will pass through the wire two 34, so that the electromagnet 26 is energized, so that the electromagnet 26 generates magnetic force, and the metal wire column 20 is instantly adsorbed on the surface of the electromagnet 26. At this time, the spring baffle 22 is not blocked by the second telescopic rod 21, and the spring three 24 is restored. The metal wire column 20 is restored to normal state. At this time, the metal wire column 20 cannot be connected to the wire protrusion 25, the indicator light 27 is not on, and the entire switch cabinet is powered off. At this time, the maintenance personnel open the safety lock 32 to open the double door 30. When the repair work is completed, pull down the pull rod 23 on the spring baffle 22. At this time, the spring three 24 extends, and the metal wire column 20 is pressed against the wire protrusion 25. At this time, the wire protrusion 25 connected to the live wire begins to be able to transmit current to the indicator light 27, thereby making the indicator light 27 light up. During the normal maintenance of the switch cabinet, when the double door 30 is opened, the induction switch 29 at both ends of the lighting lamp 28 can turn on the lighting lamp 28, so as to inspect the inside of the cabinet 1, thereby achieving the effect of leakage alarm and anti-electric shock.

[0032] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A high and low voltage switch cabinet with a built-in pressure relief structure, comprising a cabinet body, characterized in that: The cabinet is provided with supporting feet at the bottom, electric fans are provided at both sides of the cabinet, a dust cover is provided outside the electric fan, a bellows is provided at the inner wall of the cabinet, a dust net is provided inside the bellows, a first telescopic rod is provided at the front end of the dust net, a push switch is provided at the bottom of the first telescopic rod, a spring 1 is provided at the outer side of the push switch, a pressure rod is provided at the front end of the spring 1, a baffle is provided at the other end of the pressure rod, an active cavity is provided at the center of the baffle, an air bag is provided inside the active cavity, a wind net is provided on the front surface of the bellows, an insulating shell is provided on the upper surface of the cabinet, an insulating sliding rod is provided inside the insulating shell, A second spring is arranged on the outside of the insulating sliding rod, a metal wire column is arranged above the second spring, a second telescopic rod is arranged at both ends of the metal wire column, a spring baffle is arranged on the left side of the second telescopic rod, a pull rod is arranged on the left side of the spring baffle, a spring three is arranged inside the pull rod, a wire bump is arranged above the insulating sliding rod, two electromagnets are arranged at the bottom of the insulating shell, an indicator light is arranged on the outside of the insulating shell, a lighting lamp is arranged in front of the insulating shell, induction switches are arranged on both sides of the lighting lamp, a double door is arranged in the front of the cabinet, a handle is arranged at the center of the double door, and a safety lock is arranged on the right side of the double door.

2. A high and low voltage switch cabinet with a built-in pressure relief structure according to claim 1, characterized in that: There are six electric fans, three in each group, symmetrically arranged on both sides of the cabinet, and the number and positions of the dustproof nets correspond to the number and positions of the electric fans.

3. A high and low voltage switch cabinet with a built-in pressure relief structure according to claim 1, characterized in that: There are two bellows, and the bellows are symmetrically arranged on the inner walls on both sides of the cabinet body with the central axis of the cabinet body as the symmetry center.

4. The high and low voltage switch cabinet with built-in pressure relief structure according to claim 1, characterized in that: The width and length of the baffle are the same as the length and width of the wind net, and the position of the baffle corresponds to the position of the wind net.

5. The high and low voltage switch cabinet with built-in pressure relief structure according to claim 1, characterized in that: The two ends of the wire protrusion are provided with wire one, the right side of the wire one is connected with the indicator light and each module inside the cabinet, and the middle wire protrusion is connected with the live wire.

6. The high and low voltage switch cabinet with built-in pressure relief structure according to claim 1, characterized in that: Two ends of the electromagnet are provided with a second conductor, the right side of the second conductor is connected to the indicator light, and the left side of the second conductor is connected to the metal conductor column.

7. The high and low voltage switch cabinet with built-in pressure relief structure according to claim 1, characterized in that: A limiting plate is arranged at the front end of the pressure rod, a pressing block is arranged at the front end of the limiting plate, and the edge position of the limiting plate corresponds to the position of the spring one.

8. The high and low voltage switch cabinet with built-in pressure relief structure according to claim 1, characterized in that: There are two safety locks, which are symmetrically arranged on the upper and lower sides of the double-leaf door and close to the center of the double-leaf door.

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