Novel high-voltage cabinet secondary chamber structure

Abstract

The utility model relates to a novel secondary chamber structure of a high-voltage cabinet, which effectively solves the problem that components in a secondary chamber in a narrow space are inconvenient to install and maintain. Comprising a high-voltage cabinet shell, a secondary chamber at the front end of the high-voltage cabinet shell, a cable chamber and a bus chamber which are arranged up and down at the rear end of the high-voltage cabinet shell, and a circuit breaker chamber below the secondary chamber, a tray is arranged in the secondary chamber, two supports which are arranged front and back are fixed on the tray, and each support comprises supporting legs at the two ends and a cross beam in the middle. A plurality of wiring terminals or air switches are fixed on the cross beam; according to the utility model, the structure is ingenious, the use is convenient, the tray is designed to be a detachable structure through the arrangement of the tray, the support, the fixing assembly and the like, subsequent maintenance and installation are facilitated, a worker can install a terminal or an air switch on the tray in advance, and then the tray is fixed inside a secondary chamber, compared with a conventional installation mode, the installation efficiency is greatly improved. The tray is detachable, so that workers can quickly mount the tray, and the working efficiency of the workers is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of switch cabinets, in particular to a novel secondary chamber structure of a high-voltage cabinet. Background Art

[0002] Switchgear is a common electrical device in the power industry. Its primary function is to open and close, control, and protect electrical equipment during power generation, transmission, distribution, and conversion. The secondary compartment of a switchgear, also known as the relay compartment, is a crucial component of the switchgear and houses various secondary instruments, switches, protective devices, control elements, and wire terminals.

[0003] Existing switchgear technology is becoming increasingly mature, but the following problems still exist:

[0004] 1. The secondary room requires a large number of components to be installed and wired, but the space in the secondary room is limited and the wiring is tight. In addition, the secondary room is located in the upper part of the cabinet, and workers need to stand at a certain height to wire. This makes the installation and wiring of components more difficult, which is very time-consuming and labor-intensive for workers in daily installation and maintenance.

[0005] 2. When using a detachable pallet, the pallet and the secondary chamber are generally connected by bolts. For a secondary chamber with a relatively small space, it is very inconvenient for workers to disassemble the pallet, and they often need to pass tools through various narrow areas to remove the bolts. Utility Model Content

[0006] In view of the above situation, in order to overcome the defects of the prior art, the purpose of the present utility model is to provide a new type of high-voltage cabinet secondary chamber structure, which effectively solves the problems mentioned in the background technology.

[0007] The technical solution is as follows: the utility model includes a high-voltage cabinet housing, a secondary chamber at the front end of the high-voltage cabinet housing, a cable chamber and a busbar chamber arranged vertically at the rear end of the high-voltage cabinet housing, and a circuit breaker chamber below the secondary chamber; a tray is provided inside the secondary chamber, two brackets arranged front to back are fixed on the tray, the bracket includes supporting legs at both ends and a crossbeam in the middle, a plurality of wiring terminals or air switches are fixed on the crossbeam, a junction box located on the back of the terminals or air switches is fixed on the crossbeam, mounting holes are provided at the four corners of the tray, a socket matching the mounting hole is provided on the top wall of the circuit breaker chamber, the diameter of the socket is larger than the diameter of the mounting hole, and a fixing component is provided in the mounting hole;

[0008] The fixing assembly includes a cylinder that slides up and down inside the mounting hole and the socket, and a plurality of circumferentially evenly distributed receiving grooves are opened on the outer wall of the cylinder, and a contact plate is rotatably connected to the inside of the receiving groove, and the inner side surface of the contact plate is connected to the receiving groove by a spring, and the contact end of the contact plate is against the top wall of the circuit breaker chamber. The top of the cylinder is coaxially fixed with a support plate, and the support plate is connected to the tray by a spring. A receiving cylinder that slides up and down is coaxially provided on the cylinder, and the sliding height of the receiving cylinder does not exceed the highest point of the contact plate. A limiting plate is coaxially provided above the support plate, and the limiting plate is connected to the support plate by a spring. The bottom of the limiting plate is coaxially fixed with a connecting rod, and the connecting rod passes through the interior of the cylinder and is fixedly connected to the bottom of the receiving cylinder. The top of the tray is rotatably connected to a limiting assembly located on one side of the limiting plate.

[0009] Preferably, a sliding hole is provided on the receiving groove, a limiting rod is slidably connected in the sliding hole, one end of the limiting rod is rotatably connected to the contact plate, and the other end of the limiting rod is fixed to a top plate located inside the cylinder.

[0010] Preferably, the four support plates are fixed with the same "H"-shaped connecting plate, the four limit plates are fixed with the same "H"-shaped movable plate, the middle part of the connecting plate is fixed with an elastic baffle, the middle part of the movable plate is fixed with a round rod, and the top of the elastic baffle is an arc surface or a slope.

[0011] Preferably, the inner angle between the support leg at the rear end and the crossbeam is 110 degrees, the inner angle between the support leg at the front end and the crossbeam is 150 degrees, and the height of the support leg at the rear end is higher than that of the support leg at the front end.

[0012] Preferably, a side pressure plate is fixed to one side of the top of the elastic baffle.

[0013] Preferably, the contact end of the contact plate is an arc surface or a spherical structure.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. The tray is designed to be detachable through the settings of tray, bracket and fixing components, which is convenient for subsequent maintenance and installation. Workers can install terminals or air switches on the tray in advance and then fix the tray inside the secondary chamber. Compared with the conventional installation method, the detachable tray enables workers to install quickly and improves their work efficiency.

[0016] 2. Through the settings of contact plate, storage slot and cylinder, workers only need to insert the cylinder into the installation hole and socket. At this time, the contact plate inside the storage slot is unfolded to one side, and the contact end of the contact plate directly contacts the top wall of the circuit breaker chamber, thereby realizing the rapid installation of the tray without the use of special tools. It is more convenient than bolts.

[0017] 3. Through the settings of the storage cylinder, limit plate and connecting rod, when the worker disassembles the pallet, he first disengages the L-shaped rod from the limit plate. The limit plate pops up upward under the action of the spring. At this time, the storage cylinder moves upward. During the movement of the storage cylinder, all the multiple contact plates on the cylinder are squeezed back into the inside of the storage slot. Finally, the pallet can be taken out to achieve the effect of quick disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional diagram of the present utility model.

[0019] Figure 2 It is a cross-sectional view of the present utility model.

[0020] Figure 3 This utility model Figure 2 A magnified schematic diagram of the structure at point A in the middle.

[0021] Figure 4 It is a structural schematic diagram of the tray and the bracket in the utility model.

[0022] Figure 5 It is a structural schematic diagram of the mounting hole in the utility model.

[0023] Figure 6 It is a structural diagram of the fixing component in the utility model.

[0024] Figure 7 It is a structural diagram of the cylinder in the utility model.

[0025] Figure 8 It is a cross-sectional view of the fixing component in the utility model.

[0026] Figure 9 It is a structural diagram of the elastic baffle in the utility model.

[0027] Explanation of the numbers in the schematic diagram:

[0028] 10. High-voltage cabinet shell; 11. Secondary chamber; 12. Cable chamber; 13. Busbar chamber; 14. Circuit breaker chamber; 20. Tray; 201. Mounting hole; 202. Jack; 21. Bracket; 211. Support leg; 212. Crossbeam; 22. Cylinder; 221. Storage slot; 23. Contact plate; 24. Support plate; 25. Storage cylinder; 26. Limit plate; 261. Connecting rod; 27. Limit rod; 271. Top plate; 28. Connecting plate; 281. Elastic baffle; 282. Side pressure plate; 29. ​​Movable plate; 291. Round rod; 30. Junction box. DETAILED DESCRIPTION

[0029] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0030] Depend on Figures 1 to 7 It includes a high-voltage cabinet housing 10, a secondary chamber 11 at the front end of the high-voltage cabinet housing 10, a cable chamber 12 and a busbar chamber 13 arranged up and down at the rear end of the high-voltage cabinet housing 10, and a circuit breaker chamber 14 below the secondary chamber 11. A tray 20 is provided inside the secondary chamber 11. A square hole is provided at the bottom of the tray 20 for fixing an aviation plug hose. One end of the aviation plug hose is connected to an aviation plug. The width of the square hole must ensure that the aviation plug can pass through. Two brackets 21 arranged front and back are fixed on the tray 20. The bracket 21 includes support legs 211 at both ends and a crossbeam 212 in the middle. A plurality of wiring terminals or air switches are fixed on the crossbeam 212. A junction box 30 located on the back of the terminal or air switch is fixed on the crossbeam 212 for storing the connecting wires of the terminal or air switch, so that the secondary The interior of the chamber 11 is more tidy, which is also beneficial to the daily maintenance of workers. The four corners of the tray 20 are provided with mounting holes 201, and the top wall of the circuit breaker chamber 14 is provided with sockets 202 that match the mounting holes 201. The diameter of the sockets 202 is larger than the diameter of the mounting holes 201. A fixing component is provided in the mounting hole 201, and the tray 20 is installed in the secondary chamber 11 through the fixing component. The tray 20 is designed to be detachable, which is convenient for subsequent maintenance and installation. Workers can pre-install terminals or air switches on the tray 20, pre-install a part of the connecting wires between the terminals, and finally fix the tray 20 in the secondary chamber 11. Compared with the conventional installation method, the detachable tray 20 realizes rapid installation by workers and improves the work efficiency of workers.

[0031] Considering that the method of mounting the tray 20 in the secondary chamber 11 by bolts is not only inconvenient to disassemble, but also requires workers to use special tools for disassembly, and it is extremely inconvenient to operate in the narrow space of the secondary chamber 11, the fixing assembly includes a cylinder 22 that slides up and down inside the mounting hole 201 and the socket 202, and a plurality of receiving grooves 221 evenly distributed around the circumference are opened on the outer wall of the cylinder 22, and a contact plate 23 is rotatably connected to the interior of the receiving groove 221, and the inner side surface of the contact plate 23 is connected to the receiving groove 221 by a spring. The contact end of the cylinder 22 is against the top wall of the circuit breaker chamber 14. A support plate 24 is coaxially fixed to the top of the cylinder 22. The support plate 24 is connected to the tray 20 by a spring. Through the contact plate 23, the receiving groove 221 and the cylinder 22, the worker only needs to insert the cylinder 22 into the mounting hole 201 and the socket 202. At this time, the contact plate 23 inside the receiving groove 221 is unfolded to one side, and the contact end of the contact plate 23 is directly against the top wall of the circuit breaker chamber 14, thereby realizing the rapid installation of the tray 20 without the use of special tools. It is easier to install than bolts. For convenience, a storage cylinder 25 that slides up and down is coaxially provided on the cylinder 22. The sliding height of the storage cylinder 25 does not exceed the highest point of the contact plate 23. A limit plate 26 is coaxially provided above the support plate 24. The limit plate 26 is connected to the support plate 24 through a spring. A connecting rod 261 is coaxially fixed to the bottom of the limit plate 26. The connecting rod 261 passes through the interior of the cylinder 22 and is fixedly connected to the bottom of the storage cylinder 25. The top of the tray 20 is rotatably connected to a limit assembly located on one side of the limit plate 26. The limit assembly The parts include an L-shaped rod that rotates on the top of the tray 20, and the L-shaped rod is against the top of the limit plate 26. Through the storage tube 25, the limit plate 26 and the connecting rod 261, when the worker disassembles the tray 20, he first disengages the L-shaped rod from the limit plate 26, and the limit plate 26 pops up upward under the action of the spring. At this time, the storage tube 25 moves upward. During the movement of the storage tube 25, the multiple contact plates 23 on the cylinder 22 are all squeezed back into the inside of the storage groove 221, and finally the tray 20 can be taken out, thereby achieving the effect of quick disassembly.

[0032] refer to Figure 8 As shown, further, considering that the contact plate 23 may have an excessively large rotation angle when contacting the top of the circuit breaker cabinet, causing the tray 20 to be too loose in the secondary chamber 11, a sliding hole is provided on the receiving groove 221, and a limit rod 27 is slidably connected in the sliding hole. One end of the limit rod 27 is rotatably connected to the contact plate 23, and the other end of the limit rod 27 is fixed with a top plate 271 located inside the cylinder 22. The deployment angle of the contact plate 23 is limited by the settings of the limit rod 27, the sliding hole and the top plate 271 to avoid the above situation.

[0033] refer to Figure 6 and Figure 9 As shown, considering that it is troublesome for workers to operate the fixed components individually, the four support plates 24 are fixed with the same "H"-shaped connecting plate 28, and the four limit plates 26 are fixed with the same "H"-shaped movable plate 29. The middle of the connecting plate 28 is fixed with an elastic baffle 281, and the middle of the movable plate 29 is fixed with a round rod 291. The top of the elastic baffle 281 is an arc surface or a slope. Through the settings of the connecting plate 28, the movable plate 29 and the elastic baffle 281, when installing the pallet 20, there is no need to limit the L-shaped rod and the limit plate 26 one by one. It is only necessary to clamp the round rod 291 under the elastic baffle 281. When disassembling, only one-handed operation is required to release the limit of the elastic baffle 281 and the round rod 291, thereby achieving a more convenient and quick effect, and greatly improving the work efficiency of the workers.

[0034] refer to Figure 3 As shown, in order to facilitate workers to connect the wiring terminals or air switches in the secondary chamber 11, the inner angle between the support leg 211 at the rear end and the beam 212 is 110 degrees, and the inner angle between the support leg 211 at the front end and the beam 212 is 150 degrees. The height of the support leg 211 at the rear end is higher than the support leg 211 at the front end.

[0035] refer to Figure 9 As shown, in order to facilitate workers to operate the elastic baffle 281, a side pressure plate 282 is fixed to one side of the top of the elastic baffle 281.

[0036] In order to ensure that the contact plate 23 can be recovered more smoothly into the receiving groove 221 and achieve better use effect, the contact end of the contact plate 23 is an arc surface or a spherical structure.

[0037] When using this utility model:

[0038] First, components such as the terminal blocks or air switches are pre-installed on the beam 212 , and then the tray 20 is fixed inside the secondary chamber 11 ;

[0039] Then, when fixing the tray 20, the four cylinders 22 are respectively inserted into the mounting holes 201 and the insertion holes 202, and the movable plate 29 is pressed downward at the same time, so that the distance between the movable plate 29 and the connecting plate 28 is reduced. When the movable plate 29 is fully pressed under the elastic baffle 281 and a limit is generated, the storage cylinder 25 is completely freed from the restriction on the contact plate 23, and the contact plate 23 is expanded outward and directly abuts against the top wall of the circuit breaker chamber 14, thereby achieving a quick installation effect;

[0040] Secondly, after the installation of the tray 20 is completed, the worker then performs the wiring work in the secondary chamber 11;

[0041] Finally, when the worker needs to remove the tray 20 for inspection, he only needs to push the elastic baffle 281 on one side, and the movable plate 29 will bounce upward under the action of the spring, thereby driving the storage tube 25 to move upward and completely squeeze the contact plate 23 into the inside of the storage groove 221. At this time, the tray 20 can be removed.

[0042] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A novel high-voltage cabinet secondary chamber structure, comprising a high-voltage cabinet housing (10), a secondary chamber (11) at the front end of the high-voltage cabinet housing (10), a cable chamber (12) and a busbar chamber (13) arranged vertically at the rear end of the high-voltage cabinet housing (10), and a circuit breaker chamber (14) below the secondary chamber (11), characterized in that: A tray (20) is provided inside the secondary chamber (11), two brackets (21) arranged in a front-to-rear arrangement are fixed on the tray (20), the bracket (21) comprises supporting legs (211) at both ends and a crossbeam (212) in the middle, a plurality of wiring terminals or air switches are fixed on the crossbeam (212), a junction box (30) located on the back of the wiring terminals or air switches is fixed on the crossbeam (212), mounting holes (201) are provided at four corners of the tray (20), a socket (202) matching the mounting hole (201) is provided on the top wall of the circuit breaker chamber (14), the diameter of the socket (202) is larger than the diameter of the mounting hole (201), and a fixing component is provided in the mounting hole (201); The fixing assembly includes a cylinder (22) that slides up and down inside the mounting hole (201) and the insertion hole (202); a plurality of circumferentially evenly distributed receiving grooves (221) are provided on the outer wall of the cylinder (22); a contact plate (23) is rotatably connected inside the receiving groove (221); the inner side surface of the contact plate (23) is connected to the receiving groove (221) via a spring; the contact end of the contact plate (23) abuts against the top wall of the circuit breaker chamber (14); a support plate (24) is coaxially fixed to the top of the cylinder (22); the support plate (24) is connected to the tray (20) via a spring; A storage cylinder (25) that slides up and down is coaxially arranged on the cylinder (22), and the sliding height of the storage cylinder (25) does not exceed the highest point of the contact plate (23). A limiting plate (26) is coaxially arranged above the support plate (24), and the limiting plate (26) is connected to the support plate (24) through a spring. A connecting rod (261) is coaxially fixed to the bottom of the limiting plate (26), and the connecting rod (261) passes through the interior of the cylinder (22) and is fixedly connected to the bottom of the storage cylinder (25). The top of the tray (20) is rotatably connected to a limiting component located on one side of the limiting plate (26).

2. A novel high-voltage cabinet secondary chamber structure according to claim 1, characterized in that: A sliding hole is provided on the receiving groove (221), and a limiting rod (27) is slidably connected in the sliding hole. One end of the limiting rod (27) is rotatably connected to the contact plate (23), and the other end of the limiting rod (27) is fixed to a top plate (271) located inside the cylinder (22).

3. A novel high-voltage cabinet secondary chamber structure according to claim 1, characterized in that: The four support plates (24) are fixed with a same "H"-shaped connecting plate (28), the four limiting plates (26) are fixed with a same "H"-shaped movable plate (29), the middle of the connecting plate (28) is fixed with an elastic baffle (281), the middle of the movable plate (29) is fixed with a round rod (291), and the top of the elastic baffle (281) is an arc surface or an inclined surface.

4. A novel high-voltage cabinet secondary chamber structure according to claim 1, characterized in that: The inner angle between the support leg (211) at the rear end and the crossbeam (212) is (110) degrees, the inner angle between the support leg (211) at the front end and the crossbeam (212) is (150) degrees, and the height of the support leg (211) at the rear end is higher than that of the support leg (211) at the front end.

5. A novel high-voltage cabinet secondary chamber structure according to claim 3, characterized in that: A side pressure plate (282) is fixed to one side of the top of the elastic baffle (281).

6. A novel high-voltage cabinet secondary chamber structure according to claim 1, characterized in that: The contact end of the contact plate (23) is an arc surface or a spherical structure.

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