Electrical cabinet with arc extinguishing function

Abstract

The invention discloses an electrical cabinet with an arc extinguishing function. The electrical cabinet comprises a cabinet body, a quick-assembly arc extinguishing mechanism and a sealing mechanism, a mounting frame is arranged in the cabinet body, the front end of the mounting frame is connected with an arc extinguishing bin through uniformly distributed connecting mechanisms, uniformly distributed heat dissipation holes are formed in the upper end of the arc extinguishing bin, the connecting mechanisms comprise sliding grooves, locking blocks and notches, the sliding grooves are symmetrically formed in the front end of the mounting frame, the locking blocks are slidably connected in the sliding grooves, and the notches are formed in the front end of the mounting frame. Symmetrically distributed notches are formed in the rear ends of the arc extinguishing bins; the locking blocks are clamped with the transversely adjacent notches; and the quick-assembly arc-extinguishing mechanism comprises an isolation plate and an arc-extinguishing grid I. The electrical cabinet with the arc-extinguishing function can realize quick assembly and quick disassembly of the arc-extinguishing grid I and the arc-extinguishing grid II, can realize quick and stable connection between the arc-extinguishing bin and the mounting rack, can monitor the interior of the arc-extinguishing bin in real time, and facilitates timely and efficient arc-extinguishing operation.

Description

Technical Field

[0001] The invention relates to the technical field of electrical equipment, and in particular to an electrical cabinet with an arc extinguishing function. Background Art

[0002] Electrical cabinets with arc extinguishing function are an important part of the power system. They are mainly used to control and protect circuit equipment to ensure the safety and stability of power supply. The arc extinguishing function means that when a short circuit or arc fault occurs inside the electrical cabinet, the arc can be extinguished quickly and effectively to prevent the fault from expanding and protect the safety of equipment and personnel. Some existing electrical cabinets with arc extinguishing function use bolt connection to connect the mounting frame and the arc extinguishing chamber, some electrical cabinets with arc extinguishing function use the method of fixing the arc extinguishing grid in one position to extinguish the arc, and some electrical cabinets with arc extinguishing function use the method of pumping arc extinguishing gas into the whole cabinet to extinguish the arc; There are some problems with traditional electrical cabinets with arc extinguishing function. For example, the bolt connection method increases the complexity of the connection between the mounting frame and the arc extinguishing chamber, affecting the convenience of installation and disassembly of the arc extinguishing chamber. The fixed position of the arc extinguishing grid makes it inconvenient to replace the arc extinguishing grid. Arc extinguishing gas is pumped into the interior of the electrical cabinet as a whole, resulting in a waste of arc extinguishing gas and a certain delay in the arc extinguishing effect. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the existing defects and provide an electrical cabinet with arc extinguishing function, which can realize the quick installation and quick removal of arc extinguishing grid one and arc extinguishing grid two, and at the same time can realize the rapid and stable connection between the arc extinguishing bin and the mounting frame, and at the same time can perform real-time monitoring of the inside of the arc extinguishing bin, so as to facilitate the timely and efficient arc extinguishing work, and can effectively solve the problems in the background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions: an electrical cabinet with arc extinguishing function, comprising a cabinet body, a quick-install arc extinguishing mechanism and a closing mechanism; A mounting frame is arranged inside the cabinet, and the front end of the mounting frame is connected to the arc extinguishing bin through a uniformly distributed connecting mechanism, and the upper end of the arc extinguishing bin is provided with uniformly distributed heat dissipation holes, and the connecting mechanism includes a slide groove, a locking block and a notch, and the slide groove is symmetrically arranged at the front end of the mounting frame, and the inside of the slide groove is slidably connected with a locking block, and the rear end of the arc extinguishing bin is provided with symmetrically distributed notches, and the locking blocks are clamped with the laterally adjacent notches; The quick-install arc extinguishing mechanism comprises an isolation plate and an arc extinguishing grid 1, wherein the isolation plates are fixedly connected to the interior of the arc extinguishing bin, the interior of the isolation plates are provided with evenly distributed card slots, and the interior of the card slots are carded with an arc extinguishing grid 1; The closing mechanisms are all arranged at the front end of the arc extinguishing bin, which can realize the quick installation and quick removal of the arc extinguishing grid one and the arc extinguishing grid two, and can realize the fast and stable connection between the arc extinguishing bin and the mounting frame. At the same time, the interior of the arc extinguishing bin can be monitored in real time, which facilitates the timely and efficient arc extinguishing work.

[0005] Furthermore, the connection mechanism also includes a spring, which is evenly and fixedly connected between the slide groove and the laterally adjacent locking blocks to provide a driving force for the stable connection between the mounting bracket and the arc extinguishing chamber.

[0006] Furthermore, the front end of the mounting frame is provided with evenly distributed grooves, two laterally adjacent sliding grooves are connected to the same groove, the grooves are slidably connected to the lower ends of the longitudinally adjacent arc extinguishing bins, the front ends of the grooves are fixedly connected with clamping plates, the lower ends of the arc extinguishing bins are provided with bayonet ports, the clamping plates are clamped with the vertically adjacent bayonet ports, thereby further improving the firmness of the connection between the mounting frame and the arc extinguishing bin.

[0007] Furthermore, the quick-install arc extinguishing mechanism also includes a cavity, a rectangular opening and an arc extinguishing grid 2. The cavity is respectively arranged at the left and right ends of the arc extinguishing bin. The interior of the cavity is slidably connected with the arc extinguishing grid 2. The left and right ends of the cavity are provided with evenly distributed rectangular openings to expand the arc extinguishing coverage and improve the arc extinguishing efficiency.

[0008] Furthermore, the closing mechanism includes a closing cover, sliding ribs and a sliding groove, the sliding groove is symmetrically arranged at the front end of the arc extinguishing bin, the interior of the sliding groove is slidably connected with the sliding ribs, and the front ends of two laterally adjacent sliding ribs are fixedly connected to the rear end of the same closing cover to facilitate the closing of the arc extinguishing bin.

[0009] Furthermore, the closing mechanism also includes locking columns, which are symmetrically fixedly connected to the upper end of the closing cover. The upper end of the arc extinguishing chamber is provided with symmetrically distributed sockets, and the locking columns are plugged into the vertically adjacent sockets to improve the stability of the connection between the closing cover and the arc extinguishing chamber.

[0010] Furthermore, a controller is provided at the front end of the left side surface of the cabinet, and arc sensors are provided at the lower end of the arc extinguishing chamber. The arc sensors are electrically connected to the controller in both directions, and the input end of the controller is electrically connected to an external power supply to monitor the arc extinguishing information inside the arc extinguishing chamber.

[0011] Furthermore, an air supply pipe is provided at the front end of the closing cover, air pipes are provided at both ends of the cabinet, solenoid valves are provided inside the air supply pipes, the input ends of the solenoid valves are electrically connected to the output ends of the controller, three vertically adjacent air supply pipes are connected to the same air pipe, and an air storage tank is provided at the upper end of the cabinet, and two air pipes are connected to the air storage tanks to provide directionally supplied air to the arc extinguishing chamber.

[0012] Furthermore, the front end of the mounting frame is provided with evenly distributed contact switches, the contact switches are all located inside the arc extinguishing chambers adjacent to each other in the longitudinal direction, and the input ends of the contact switches are all electrically connected to the external power supply to protect the external circuit.

[0013] Furthermore, a mounting plate is fixedly connected to the interior of the cabinet, a front end of the mounting plate is connected to the mounting frame via evenly distributed bolts, and a symmetrically distributed cabinet door is hinged at the front end of the cabinet to facilitate equipment maintenance.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. Under the elastic force of the spring, the locking block and the arc extinguishing chamber are stably connected. At the same time, the stable connection between the clamping plate and the bayonet provides longitudinal limit for the arc extinguishing chamber, which ensures the firmness of the connection between the arc extinguishing chamber and the mounting frame while realizing the rapid and stable connection between the arc extinguishing chamber and the mounting frame.

[0015] 2. By sliding the arc extinguishing grid 1 into the corresponding slot and sliding the arc extinguishing grid 2 into the corresponding cavity, and closing the arc extinguishing chamber through a closing mechanism, the arc extinguishing unit can be quickly installed and removed, which greatly expands the coverage of the arc extinguishing unit and further improves the arc extinguishing efficiency of the arc extinguishing unit.

[0016] 3. The arc state inside the arc extinguishing chamber is monitored in real time through the arc sensor. The controller organizes the arc information. When an arc appears in the arc extinguishing chamber, the controller realizes the operation of the corresponding electromagnetic gas valve, thereby realizing the directional increase of sulfur hexafluoride gas, greatly saving sulfur hexafluoride gas, and improving arc extinguishing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a schematic diagram of the cross-sectional structure inside the present invention; Figure 3 It is a structural schematic diagram of the rear side of the present invention; Figure 4 This is an enlarged structural schematic diagram of location A of the present invention; Figure 5 It is a schematic diagram of the enlarged structure of point B of the present invention.

[0018] In the figure: 1 cabinet, 2 mounting plate, 3 mounting frame, 4 connecting mechanism, 41 slide groove, 42 locking block, 43 recess, 44 spring, 5 quick-install arc extinguishing mechanism, 51 cavity, 52 rectangular opening, 53 isolation plate, 54 arc extinguishing grid 1, 55 arc extinguishing grid 2, 6 closing mechanism, 61 closing cover, 62 locking column, 63 sliding rib, 64 slide groove, 7 arc extinguishing bin, 8 gas supply pipe, 9 electromagnetic gas valve, 10 gas pipe, 11 gas storage tank, 12 contact switch, 13 heat dissipation hole, 14 groove, 15 card plate, 16 bayonet, 17 arc sensor, 18 controller, 19 cabinet door. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] See also Figure 1-5 This embodiment provides an electrical cabinet with arc extinguishing function, including a cabinet body 1, a quick-install arc extinguishing mechanism 5 and a closing mechanism 6.

[0021] A mounting frame 3 is provided inside the cabinet 1, and evenly distributed contact switches 12 are provided at the front end of the mounting frame 3. The contact switches 12 are all located inside the arc-extinguishing bins 7 adjacent to each other in the longitudinal direction. The input ends of the contact switches 12 are all electrically connected to the external power supply. The front end of the mounting frame 3 is connected to the arc-extinguishing bin 7 through an evenly distributed connecting mechanism 4. The upper ends of the arc-extinguishing bins 7 are all provided with evenly distributed heat dissipation holes 13. The connecting mechanism 4 includes a slide groove 41, a locking block 42 and a recess 43. The slide groove 41 is symmetrically arranged at the front end of the mounting frame 3. The interior of the slide groove 41 is slidably connected with the locking block 42. The rear ends of the arc-extinguishing bins 7 are all provided with symmetrically distributed recesses 43. The locking blocks 42 are all clamped with the laterally adjacent recesses 43. The connecting mechanism 4 also includes a spring 44. The spring 44 is evenly and fixedly connected between the slide groove 41 and the laterally adjacent locking blocks 42. The front end of the mounting frame 3 is provided with There are evenly distributed grooves 14, two transversely adjacent slide grooves 41 are connected to the same groove 14, the grooves 14 are slidably connected to the lower ends of the longitudinally adjacent arc-extinguishing bins 7, the front ends of the grooves 14 are fixedly connected with card plates 15, the lower ends of the arc-extinguishing bins 7 are provided with card slots 16, the card plates 15 are carded with the vertically adjacent card slots 16, the rear ends of the arc-extinguishing bins 7 are slidably connected between the two transversely adjacent slide grooves 41, the rear end of the arc-extinguishing bin 7 first pushes the two transversely adjacent locking blocks 42 to move outward, thereby causing the springs 44 to be elastically compressed, when the arc-extinguishing bin 7 moves to the specified position, the elastic force of the springs 44 acts on the locking blocks 42, so that the locking blocks 42 are stably carded with the transversely adjacent recesses 43, and then the arc-extinguishing bin 7 is slid downward, so that the card slots 16 are stably carded with the vertically adjacent card plates 15, thereby achieving stable installation of the arc-extinguishing bin 7.

[0022] The quick-install arc-extinguishing mechanism 5 includes an isolation plate 53 and an arc-extinguishing grid 1 54. The isolation plates 53 are fixedly connected to the interior of the arc-extinguishing bin 7. The interior of the isolation plates 53 is provided with evenly distributed card slots. The interior of the card slots is carded with the arc-extinguishing grid 1 54. The quick-install arc-extinguishing mechanism 5 also includes a cavity 51, a rectangular opening 52 and an arc-extinguishing grid 2 55. The cavity 51 is respectively provided at the left and right ends of the arc-extinguishing bin 7. The interior of the cavity 51 is slidably connected with the arc-extinguishing grid 2 55. The left and right ends of the cavity 51 are provided with evenly distributed rectangular openings 52. The arc-extinguishing grid 1 54 is carded into the interior of the corresponding card slot in turn, and then the arc-extinguishing grid 2 55 is slidably connected into the interior of the corresponding cavity 51 in turn. When the contact switch 12 generates an arc during operation, the arc-extinguishing grid 1 54 and the arc-extinguishing grid 2 55 perform multi-directional arc extinguishing blocking on the arc inside the arc-extinguishing bin 7, so as to effectively prevent the arc from overflowing. The closing mechanism 6 is arranged at the front end of the arc extinguishing bin 7. The closing mechanism 6 includes a closing cover 61, a sliding rib 63 and a sliding groove 64. The sliding groove 64 is symmetrically arranged at the front end of the arc extinguishing bin 7. The inside of the sliding groove 64 is slidably connected with the sliding rib 63. The front ends of the two laterally adjacent sliding ribs 63 are fixedly connected to the rear end of the same closing cover 61. The closing mechanism 6 also includes a locking column 62. The locking column 62 is symmetrically fixedly connected to the upper end of the closing cover 61. The upper end of the arc extinguishing bin 7 is provided with symmetrically distributed sockets. The locking columns 62 are plugged into the vertically adjacent sockets to connect the closing cover 61 to the front end of the arc extinguishing bin 7 from top to bottom. The sliding ribs 63 slide inside the corresponding sliding grooves 64 to provide guidance for the movement of the closing cover 61 and realize the connection between the closing cover 61 and the arc extinguishing bin 7. When the locking columns 62 are plugged into the corresponding sockets, a stable connection between the closing cover 61 and the arc extinguishing bin 7 is realized.

[0023] A controller 18 is disposed at the front end of the left side surface of the cabinet 1 , and arc sensors 17 are disposed at the lower ends of the arc extinguishing chambers 7 . The arc sensors 17 are bidirectionally electrically connected to the controller 18 .

[0024] The front end of the closing cover 61 is provided with an air supply pipe 8, the left and right ends of the cabinet 1 are provided with an air pipe 10, and the interior of the air supply pipe 8 is provided with an electromagnetic air valve 9. The input end of the electromagnetic air valve 9 is electrically connected to the output end of the controller 18. The three vertically adjacent air supply pipes 8 are connected to the same air pipe 10. The upper end of the cabinet 1 is provided with a gas storage tank 11, and the two air pipes 10 are connected to the gas storage tank 11. The operation of the arc sensor 17 is realized by the controller 18. The arc sensor 17 monitors the arc state inside the corresponding arc extinguishing chamber 7 in real time, and sends the arc information to the signal receiving end of the controller 18 in real time. When the contact switch 12 generates an arc during operation, the controller 18 realizes the operation of the corresponding electromagnetic air valve 9 according to the received signal, and the sulfur hexafluoride gas inside the gas storage tank 11 enters the interior of the corresponding air supply pipe 8 through the air pipe 10 to eliminate the arc. A mounting plate 2 is fixedly connected inside the cabinet body 1 , and a front end of the mounting plate 2 is connected to a mounting frame 3 via evenly distributed bolts. A symmetrically distributed cabinet door 19 is hinged at the front end of the cabinet body 1 .

[0025] The working principle of an electrical cabinet with arc extinguishing function provided by the present invention is as follows: When working, the personnel first place the cabinet 1, the mounting plate 2 and other mechanisms stably in the horizontal working area. After the placement is stable, the personnel slide the rear end of the arc extinguishing bin 7 between the two laterally adjacent sliding grooves 41. The rear end of the arc extinguishing bin 7 first pushes the two laterally adjacent locking blocks 42 to move outward, thereby causing the springs 44 to be elastically compressed. When the arc extinguishing bin 7 moves to the specified position, the elastic force of the springs 44 acts on the locking blocks 42, so that the locking blocks 42 are stably engaged with the laterally adjacent recesses 43, and then the personnel slide the arc extinguishing bin 7 downward, so that the bayonet 16 is stably engaged with the vertically adjacent card plate 15, thereby achieving stable installation of the arc extinguishing bin 7, and then the personnel successively engage the arc extinguishing grid 1 54 into the corresponding card slots, and then successively engage the arc extinguishing grid 2 55 into the corresponding cavity 51, and then the personnel engage the closing cover 61 from top to bottom into the front end of the arc extinguishing bin 7, and the sliding ribs 63 are all in the corresponding sliding The internal sliding of the groove 64 provides guidance for the movement of the closing cover 61, and at the same time realizes the connection between the closing cover 61 and the arc extinguishing chamber 7. When the locking columns 62 are all plugged into the corresponding sockets, the stable connection between the closing cover 61 and the arc extinguishing chamber 7 is realized. The personnel realize the operation of the arc sensor 17 through the controller 18. The arc sensor 17 monitors the arc state inside the corresponding arc extinguishing chamber 7 in real time, and sends the arc information to the signal receiving end of the controller 18 in real time. When the contact switch 12 generates an arc during operation, the controller 18 realizes the operation of the corresponding electromagnetic valve 9 according to the signal transmitted by the arc sensor 17, and the sulfur hexafluoride gas inside the gas tank 11 enters the corresponding gas supply pipe 8 through the gas pipe 10 to eliminate the arc. At the same time, the arc extinguishing grid 1 54 and the arc extinguishing grid 2 55 perform multi-directional arc extinguishing blocking on the arc inside the arc extinguishing chamber 7, effectively avoiding arc overflow, and greatly improving the arc extinguishing effect of the arc extinguishing unit.

[0026] It is worth noting that the controller 18 disclosed in the above embodiments controls the operation of the electromagnetic valve 9 and the arc sensor 17 using methods commonly used in the prior art.

[0027] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An electrical cabinet with arc extinguishing function, characterized in that: It comprises a cabinet (1), a quick-install arc extinguishing mechanism (5) and a closing mechanism (6); A mounting frame (3) is arranged inside the cabinet (1); the front end of the mounting frame (3) is connected to an arc extinguishing bin (7) via a uniformly distributed connecting mechanism (4); the upper end of the arc extinguishing bin (7) is provided with uniformly distributed heat dissipation holes (13); the connecting mechanism (4) comprises a slide groove (41), a locking block (42) and a recess (43); the slide groove (41) is symmetrically arranged at the front end of the mounting frame (3); the interior of the slide groove (41) is slidably connected with the locking block (42); the rear end of the arc extinguishing bin (7) is provided with symmetrically distributed recesses (43); the locking blocks (42) are clamped with the recesses (43) adjacent to each other in the transverse direction; The quick-install arc extinguishing mechanism (5) comprises an isolation plate (53) and an arc extinguishing grid (54), wherein the isolation plates (53) are fixedly connected to the interior of the arc extinguishing chamber (7), the interior of the isolation plates (53) is provided with evenly distributed card slots, and the interior of the card slots is card-connected with the arc extinguishing grid (54); The closing mechanisms (6) are all arranged at the front end of the arc extinguishing chamber (7).

2. The electrical cabinet with arc extinguishing function according to claim 1, characterized in that: The connecting mechanism (4) further comprises a spring (44), wherein the spring (44) is evenly and fixedly connected between the sliding groove (41) and a laterally adjacent locking block (42).

3. The electrical cabinet with arc extinguishing function according to claim 1, characterized in that: The front end of the mounting frame (3) is provided with evenly distributed grooves (14), two horizontally adjacent sliding grooves (41) are connected to the same groove (14), the grooves (14) are slidably connected to the lower ends of the longitudinally adjacent arc extinguishing bins (7), the front ends of the grooves (14) are fixedly connected with clamping plates (15), the lower ends of the arc extinguishing bins (7) are provided with clamping ports (16), and the clamping plates (15) are clamped with the vertically adjacent clamping ports (16).

4. The electrical cabinet with arc extinguishing function according to claim 1, characterized in that: The quick-install arc extinguishing mechanism (5) further comprises a cavity (51), a rectangular opening (52) and a second arc extinguishing grid (55); the cavity (51) is respectively arranged at the left and right ends of the arc extinguishing bin (7); the inside of the cavity (51) is slidably connected with the second arc extinguishing grid (55); and the left and right ends of the cavity (51) are both provided with evenly distributed rectangular openings (52).

5. The electrical cabinet with arc extinguishing function according to claim 1, characterized in that: The closing mechanism (6) comprises a closing cover (61), a sliding rib (63) and a sliding groove (64); the sliding groove (64) is symmetrically arranged at the front end of the arc extinguishing chamber (7); the interior of the sliding groove (64) is slidably connected to the sliding rib (63); the front ends of two laterally adjacent sliding ribs (63) are fixedly connected to the rear end of the same closing cover (61).

6. The electrical cabinet with arc extinguishing function according to claim 5, characterized in that: The closing mechanism (6) further comprises locking columns (62), wherein the locking columns (62) are symmetrically fixedly connected to the upper end of the closing cover (61), and the upper ends of the arc extinguishing chambers (7) are provided with symmetrically distributed sockets, and the locking columns (62) are plugged into the vertically adjacent sockets.

7. The electrical cabinet with arc extinguishing function according to claim 5, characterized in that: A controller (18) is provided at the front end of the left side surface of the cabinet (1), and arc sensors (17) are provided at the lower ends of the arc extinguishing chambers (7). The arc sensors (17) are bidirectionally electrically connected to the controller (18), and an input end of the controller (18) is electrically connected to an external power supply.

8. The electrical cabinet with arc extinguishing function according to claim 7, characterized in that: The front end of the closing cover (61) is provided with an air supply pipe (8), the left and right ends of the cabinet (1) are provided with air pipes (10), the interior of the air supply pipe (8) is provided with an electromagnetic air valve (9), the input end of the electromagnetic air valve (9) is electrically connected to the output end of the controller (18), three vertically adjacent air supply pipes (8) are connected to the same air pipe (10), and the upper end of the cabinet (1) is provided with an air storage tank (11), and the two air pipes (10) are connected to the air storage tank (11).

9. The electrical cabinet with arc extinguishing function according to claim 1, characterized in that: The front end of the mounting frame (3) is provided with evenly distributed contact switches (12), the contact switches (12) are all located inside longitudinally adjacent arc extinguishing chambers (7), and the input ends of the contact switches (12) are all electrically connected to an external power supply.

10. The electrical cabinet with arc extinguishing function according to claim 1, characterized in that: A mounting plate (2) is fixedly connected to the interior of the cabinet body (1), the front end of the mounting plate (2) is connected to the mounting frame (3) via evenly distributed bolts, and the front end of the cabinet body (1) is hinged with symmetrically distributed cabinet doors (19).

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