Grid-connected control power distribution cabinet

Abstract

The invention discloses a grid-connected control power distribution cabinet, and relates to the technical field of power distribution cabinets. The opening and closing door is arranged at the front end of the cabinet body, a door lock is arranged on one side of the surface of the opening and closing door, a connecting rod is arranged on one side of the cabinet body, a rotating shaft is arranged in the middle of the connecting rod, the connecting rod is fixed to one side of the cabinet body through the rotating shaft, and the connecting rod swings through the rotating shaft; a clamping rod is arranged on the side, close to the direction of the connecting rod, of the opening and closing door, a limiting ring is arranged at the front end of the clamping rod, the insulating glove is fixed to the outer side of the rear end of the connecting rod through a clamping plate structure, the connecting rod is lifted upwards under the action of gravity, the opening and closing door is fixed through clamping of a clamping groove and the clamping rod, and the insulating glove is fixed. The opening and closing door cannot be opened under the action of the connecting rod, and the connecting rod can be turned over downwards under the action of gravity and separated from the clamping rod only when a worker takes down the insulating glove from the connecting rod, so that the opening and closing door is opened.

Description

Technical Field

[0001] The invention relates to the technical field of power distribution cabinets, and in particular to a power distribution cabinet capable of grid-connected control. Background Art

[0002] Grid-connected control refers to connecting the power distribution cabinet to the power grid system to achieve the transmission and distribution of electric energy. During the grid-connected process, it is necessary to ensure the safe, stable and efficient operation of the power distribution cabinet and the power grid system. Since it connects the generator system and the power grid system and is equipped with a complete grid-connected protection device, it plays the role of generator grid-connected, so it is called a "grid-connected cabinet". This type of power distribution cabinet not only has ordinary power distribution functions, but also has the ability of grid-connected control, which can achieve precise control and regulation of the power system.

[0003] When inspecting and repairing existing distribution cabinets, workers need to wear insulating gloves to reduce the risk of electric shock, which may also cause damage to equipment and power system interruption. However, workers often forget to bring insulating gloves when inspecting and repairing. If they go back to get the gloves, it will waste time, and there will be certain risks if they operate directly without gloves. Therefore, we propose a distribution cabinet that can be connected to the grid to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to provide a distribution cabinet that can be connected to the grid and controlled, so as to solve the problem mentioned in the above background technology that workers often forget to bring insulating gloves when performing maintenance. If they go back to get the gloves, it will waste time, and there will be certain risks if they operate directly without gloves.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a power distribution cabinet capable of grid-connected control, comprising a cabinet body;

[0006] Also includes:

[0007] An opening and closing door is arranged at the front end of a cabinet, a door lock is arranged on one side of the surface of the opening and closing door, a connecting rod is arranged on one side of the cabinet, a rotating shaft is arranged in the middle of the connecting rod, the connecting rod is fixed to one side of the cabinet through the rotating shaft, and the connecting rod swings through the rotating shaft, a clamping rod is arranged on the side of the opening and closing door close to the connecting rod, a limiting ring is arranged at the front end of the clamping rod, a clamping groove is integrally formed at one end of the connecting rod close to the clamping rod, the clamping groove is located on one side of the rotating shaft, and a movable clamping connection is performed between the clamping groove and the clamping rod;

[0008] The first splint is arranged on the outer surface of the connecting rod, and the first splint is located on the other side of the rotating shaft. The front end surface of the first splint is provided with a second splint. The first splint and the second splint are connected by a connecting piece, and the second splint swings at the front end of the first splint through the connecting piece. An insulating glove is clamped between the first splint and the second splint.

[0009] Preferably, clamping pieces are symmetrically arranged on both sides of the bottom of the second clamping plate, and magnetic sheets are symmetrically arranged on both sides of the bottom of the first clamping plate, and the magnetic sheets are magnetically connected to the clamping pieces.

[0010] Preferably, a limit block is provided on one side of the cabinet body close to the connecting rod, two limit blocks are symmetrically provided and located above the connecting rod, and the two limit blocks are symmetrically and tiltedly provided.

[0011] Preferably, a mounting seat is provided on one side of the cabinet body close to the connecting rod, and the mounting seat is located above the connecting rod, a protective cover is installed between the mounting seats, and the connecting rod, the first clamping plate and the second clamping plate are all located on the inner side of the protective cover, a through groove is provided on one side of the protective cover, and the connecting rod extends from the through groove.

[0012] Preferably, a cooling fan is provided at the upper end of the cabinet, and cooling grooves are symmetrically provided on both sides of the surface of the cabinet.

[0013] Preferably, a notch is provided on one side of the opening and closing door, a mounting block is provided at the rear end of the locking rod, and the mounting block is fixed inside the notch by bolt connection, a first contact sensor is provided on a side of the mounting block close to the cabinet, and a second contact sensor is provided on the lower surface of the locking rod.

[0014] Preferably, a buzzer is arranged on the outer side of the limiting ring, and the first contact sensor and the output end of the first contact sensor are electrically connected to the input end of the buzzer.

[0015] Preferably, a grid-connected control module is provided inside the cabinet, and the grid-connected control module is connected to the current transformer and the voltage transformer respectively, the output end of the grid-connected control module is connected to a switch control system, the output end of the switch control system is connected to a contactor, and the output end of the switch control system is connected to a circuit breaker.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. A connecting rod is arranged on one side of the cabinet, and the connecting rod swings on one side of the cabinet through a rotating shaft. A locking groove is arranged at the front end of the connecting rod and is locked with the locking rod on one side of the opening and closing door. A clamping plate structure is arranged on the outer side of the rear end of the connecting rod, so that the insulating gloves can be fixed to the outer side of the rear end of the connecting rod through the clamping plate structure, so that the connecting rod is lifted upward under the action of gravity, and the opening and closing door is fixed by the locking of the locking groove and the locking rod. The opening and closing door cannot be opened under the action of the connecting rod. Only when the staff removes the insulating gloves from the connecting rod can the connecting rod flip downward under the action of gravity and disengage from the locking rod, thereby opening the opening and closing door. This method can prevent the staff from forgetting to bring the insulating gloves, and reminds the staff that the insulating gloves are left on the outside of the cabinet for use by failing to open the opening and closing door.

[0018] 2. The locking rod is processed and installed on one side of the mounting block, and the mounting block is fixed in the notch on one side of the opening and closing door. Contact sensors are provided on the inner side of the mounting block and the bottom of the locking rod. After the inspection is completed, the opening and closing door is closed. At this time, the first contact sensor is in contact with one side of the cabinet, which will make the buzzer sound to remind the staff to return the gloves. The staff is required to put the insulating gloves back in place, and under the action of gravity, the front end of the connecting rod is lifted and engaged with the locking rod. At this time, the second contact sensor detects contact with the connecting rod and controls the buzzer to stop sounding, thereby preventing the staff from not following the regulations or forgetting to put the insulating gloves back in place, making it convenient for other staff to come for inspection next time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the connecting rod structure of the present invention;

[0021] Figure 3 It is a side view of the overall structure of the present invention;

[0022] Figure 4 It is a schematic diagram of the mounting block and the opening and closing door of the present invention;

[0023] Figure 5 This is a diagram of the grid-connected control system of the present invention;

[0024] In the figure: 1. cabinet; 2. opening and closing door; 3. cooling fan; 4. heat dissipation slot; 5. door lock; 6. connecting rod; 7. limit block; 8. protective cover; 9. mounting seat; 10. rotating shaft; 11. snap-fit ​​slot; 12. notch; 13. limit ring; 14. buzzer; 15. snap-fit ​​rod; 16. mounting block; 17. first contact sensor; 18. second contact sensor; 19. second clamping plate; 20. clamping piece; 21. magnetic sheet; 22. connecting piece; 23. through slot; 24. insulating gloves; 25. switch control system; 26. grid-connected control module; 27. voltage transformer; 28. current transformer; 29. ​​contactor; 30. circuit breaker; 31. first clamping plate. DETAILED DESCRIPTION

[0025] 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 the embodiments.

[0026] See also Figure 1-5 , an embodiment provided by the present invention: a power distribution cabinet capable of grid-connected control, comprising a cabinet body 1;

[0027] Also includes:

[0028] An opening and closing door 2 is arranged at the front end of a cabinet 1, a door lock 5 is arranged on one side of the surface of the opening and closing door 2, a connecting rod 6 is arranged on one side of the cabinet 1, a rotating shaft 10 is arranged in the middle of the connecting rod 6, the connecting rod 6 is fixed to one side of the cabinet 1 through the rotating shaft 10, and the connecting rod 6 swings through the rotating shaft 10, a clamping rod 15 is arranged on the side of the opening and closing door 2 close to the connecting rod 6, a limiting ring 13 is arranged at the front end of the clamping rod 15, and a clamping groove 11 is integrally formed at one end of the connecting rod 6 close to the clamping rod 15, the clamping groove 11 is located on one side of the rotating shaft 10, and the clamping groove 11 and the clamping rod 15 are movably clamped and connected;

[0029] The first clamping plate 31 is arranged on the outer surface of the connecting rod 6, and the first clamping plate 31 is located on the other side of the rotating shaft 10. The front end surface of the first clamping plate 31 is provided with the second clamping plate 19. The first clamping plate 31 and the second clamping plate 19 are connected by a connecting piece 22, and the second clamping plate 19 swings at the front end of the first clamping plate 31 through the connecting piece 22. An insulating glove 24 is clamped between the first clamping plate 31 and the second clamping plate 19. A grid-connected control module 26 is arranged inside the cabinet 1. The grid-connected control module 26 is connected to the current transformer 28 and the voltage transformer 27 respectively. The output end of the grid-connected control module 26 is connected to the switch control system 25, and the output end of the switch control system 25 is connected to the contactor 29, and the output end of the switch control system 25 is connected to the circuit breaker 30.

[0030] The grid-connection control module 26 is responsible for monitoring the grid status, controlling the grid-connection process, and protecting the power system. Through the grid-connection control module 26, the seamless connection and stable operation of the distribution cabinet and the grid system can be achieved. The various electrical parameters of the grid are measured and monitored through the voltage transformer 27 and the current transformer 28. These parameters are processed and analyzed by the control system to provide decision support for the operation of the power system.

[0031] See also Figure 2 The second clamping plate 19 is symmetrically provided with clamping pieces 20 on both sides of the bottom, and the first clamping plate 31 is symmetrically provided with magnetic sheets 21 on both sides of the bottom, and the magnetic sheets 21 are magnetically connected to the clamping pieces 20, so that the two sets of clamping plates are attached together through the magnetic connection to fix the gloves.

[0032] See also Figure 1 A limit block 7 is provided on one side of the cabinet 1 close to the connecting rod 6. Two limit blocks 7 are symmetrically provided and located above the connecting rod 6. The two limit blocks 7 are symmetrically inclined. The swing range of the connecting rod 6 is limited by the two inclined limit blocks 7.

[0033] See also Figure 1 A mounting seat 9 is provided on one side of the cabinet 1 close to the connecting rod 6, and the mounting seat 9 is located above the connecting rod 6. A protective cover 8 is installed between the mounting seats 9, and the connecting rod 6, the first clamping plate 31 and the second clamping plate 19 are all located on the inner side of the protective cover 8. A through groove 23 is provided on one side of the protective cover 8, and the connecting rod 6 extends from the through groove 23. The provision of the protective cover 8 can reduce dust adhesion on the gloves.

[0034] See also Figure 1 A cooling fan 3 is arranged at the upper end of the cabinet 1 , and cooling slots 4 are symmetrically arranged on both sides of the surface of the cabinet 1 for dissipating heat inside the cabinet 1 .

[0035] See also Figure 4 A notch 12 is provided on one side of the opening and closing door 2, a mounting block 16 is provided at the rear end of the locking rod 15, and the mounting block 16 is fixed inside the notch 12 by bolt connection, a first contact sensor 17 is provided on a side of the mounting block 16 close to the cabinet 1, and a second contact sensor 18 is provided on the lower surface of the locking rod 15, and the mounting block 16 can be installed inside the notch 12.

[0036] See also Figure 4 A buzzer 14 is provided on the outer side of the limiting ring 13, and the first contact sensor 17 and the output end of the first contact sensor 17 are electrically connected to the input end of the buzzer 14, and the buzzer 14 is used to remind the staff to return the gloves.

[0037] Working principle: When the staff opens the opening and closing door 2, the opening and closing door 2 cannot be opened due to the limit between the connecting rod 6 and the clamping rod 15. The protective cover 8 must be opened outward first, and then the insulating gloves 24 clamped between the first clamping plate 31 and the second clamping plate 19 are taken out, and the second clamping plate 19 is turned upward to disengage and take off the insulating gloves 24. Since the connecting rod 6 generates a lever principle through the rotating shaft 10, when the insulating gloves 24 are taken off, the gravity of the front end of the connecting rod 6 is greater than the gravity of the rear end. At this time, the front end of the connecting rod 6 is turned downward to disengage the clamping groove 11 from between the clamping rods 15, and the opening and closing door 2 can be easily opened without being constrained by the clamping rods 15. The first contact sensor 17 is in contact with one side of the cabinet 1, and the buzzer 14 makes a sound. The staff needs to put the insulating gloves 24 back and clamp them between the first clamping plate 31 and the second clamping plate 19. Under the action of gravity, the front end of the connecting rod 6 is lifted, and the engaging groove 11 is engaged with the engaging rod 15. At this time, the second contact sensor 18 detects contact with the connecting rod 6 and controls the buzzer 14 to stop making a sound, thereby preventing the staff from not following the regulations or forgetting to put the insulating gloves 24 back in place, making it convenient for other staff to come over for inspection next time.

[0038] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A power distribution cabinet capable of grid-connected control, comprising a cabinet body (1); Features: Also includes: An opening and closing door (2) is arranged at the front end of a cabinet (1); a door lock (5) is arranged on one side of the surface of the opening and closing door (2); a connecting rod (6) is arranged on one side of the cabinet (1); a rotating shaft (10) is arranged in the middle of the connecting rod (6); the connecting rod (6) is fixed to one side of the cabinet (1) through the rotating shaft (10); and the connecting rod (6) swings through the rotating shaft (10); a locking rod (15) is arranged on the side of the opening and closing door (2) close to the connecting rod (6); a limiting ring (13) is arranged at the front end of the locking rod (15); a locking groove (11) is integrally formed at one end of the connecting rod (6) close to the locking rod (15); the locking groove (11) is located on one side of the rotating shaft (10); and the locking groove (11) and the locking rod (15) are movably locked and connected; A first clamping plate (31) is arranged on the outer surface of the connecting rod (6), and the first clamping plate (31) is located on the other side of the rotating shaft (10); a second clamping plate (19) is arranged on the front end surface of the first clamping plate (31); the first clamping plate (31) and the second clamping plate (19) are connected by a connecting piece (22), and the second clamping plate (19) swings at the front end of the first clamping plate (31) through the connecting piece (22); an insulating glove (24) is clamped between the first clamping plate (31) and the second clamping plate (19).

2. A power distribution cabinet capable of grid-connected control according to claim 1, characterized in that: Clamps (20) are symmetrically arranged on both sides of the bottom of the second clamping plate (19), and magnetic sheets (21) are symmetrically arranged on both sides of the bottom of the first clamping plate (31), and the magnetic sheets (21) and the clamps (20) are magnetically connected.

3. A power distribution cabinet capable of grid-connected control according to claim 1, characterized in that: A limit block (7) is arranged on one side of the cabinet (1) close to the connecting rod (6), two limit blocks (7) are symmetrically arranged and located above the connecting rod (6), and the two limit blocks (7) are symmetrically arranged and tilted.

4. A power distribution cabinet capable of grid-connected control according to claim 1, characterized in that: A mounting seat (9) is provided on one side of the cabinet (1) close to the connecting rod (6), and the mounting seat (9) is located above the connecting rod (6); a protective cover (8) is installed between the mounting seats (9), and the connecting rod (6), the first clamping plate (31) and the second clamping plate (19) are all located on the inner side of the protective cover (8); a through groove (23) is provided on one side of the protective cover (8), and the connecting rod (6) extends from the through groove (23).

5. A grid-connectable power distribution cabinet according to claim 1, characterized in that: A heat dissipation fan (3) is provided at the upper end of the cabinet (1), and heat dissipation grooves (4) are symmetrically provided on both sides of the surface of the cabinet (1).

6. A power distribution cabinet capable of grid-connected control according to claim 1, characterized in that: A notch (12) is provided on one side of the opening and closing door (2); a mounting block (16) is provided at the rear end of the locking rod (15), and the mounting block (16) is fixed inside the notch (12) by bolt connection; a first contact sensor (17) is provided on a side of the mounting block (16) close to the cabinet (1); and a second contact sensor (18) is provided on the lower surface of the locking rod (15).

7. A grid-connectable power distribution cabinet according to claim 1, characterized in that: A buzzer (14) is arranged on the outer side of the limiting ring (13), and the first contact sensor (17) and the output end of the first contact sensor (17) are electrically connected to the input end of the buzzer (14).

8. The power distribution cabinet capable of grid-connected control according to claim 1, characterized in that: A grid-connected control module (26) is arranged inside the cabinet (1), and the grid-connected control module (26) is connected to a current transformer (28) and a voltage transformer (27) respectively; an output end of the grid-connected control module (26) is connected to a switch control system (25); an output end of the switch control system (25) is connected to a contactor (29); and an output end of the switch control system (25) is connected to a circuit breaker (30).

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