Power-loss-uninterrupted automatic switching type power distribution cabinet

Abstract

The invention relates to the technical field of power distribution cabinets, and particularly discloses a power-loss-uninterrupted automatic switching type power distribution cabinet which comprises a mounting mechanism arranged at the top of the power distribution cabinet and a pressure relief mechanism arranged at the top of the power distribution cabinet through the mounting mechanism. The situation that the high-temperature and high-pressure gas cannot be released due to many transmission structures, the self weight of the transmission structures and the like in a traditional power distribution cabinet is avoided, the stability of releasing the high-temperature and high-pressure gas is improved, the baffle does not shield a channel where the high-temperature and high-pressure gas is exhausted upwards after being turned over, and the pressure relief efficiency is further improved. The pressure relief mechanism is convenient to mount and dismount through the mounting mechanism, so that the situation that the pressure relief mechanism cannot be dismounted or is difficult to dismount after the power distribution cabinet breaks down or burns due to the adoption of a traditional screw fixing mode is avoided, the pressure relief mechanism is conveniently recycled, and actual dismounting and use are facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of power distribution cabinets, in particular to a power distribution cabinet with uninterrupted automatic switching on and off during power failure. Background Art

[0002] The external wiring in a distribution cabinet first enters the main control switch inside the cabinet, then the sub-control switches. Each branch is configured as needed. These include instruments, automatic controls, motor magnetic switches, and various AC contactors. With the continuous development of industry, distribution cabinets are being updated at an increasingly rapid pace, and power-failure automatic re-start distribution cabinets are becoming increasingly popular. However, current power-failure automatic re-start distribution cabinets primarily utilize dual or multi-circuit power supply for the primary system, supplemented by a backup automatic re-start device for the secondary system. This is not ideal for applications such as petrochemicals and metallurgy, which require continuous power supply.

[0003] An arc-extinguishing distribution cabinet with publication number CN117239613B has the following problem raised in its background technology: existing pressure relief measures mostly release and relieve the high-temperature and high-pressure gas generated instantly by opening holes and slots on the cabinet body. However, the protection effect of simple holes and slots is general, and the high-temperature and high-pressure gas quickly discharged outward through the empty slots may still cause damage to the facilities or personnel around the distribution cabinet.

[0004] Based on the existing technology, the following problems exist:

[0005] When the existing standby automatic distribution cabinet is in use, the high-temperature and high-pressure gas generated instantaneously due to short circuits is not easy to be discharged quickly, or after one discharge, the standby automatic distribution cabinet will continue to produce high-temperature and high-pressure gas, and the high-temperature and high-pressure gas remaining in the standby automatic distribution cabinet will continue to accumulate, seriously affecting the safety of the standby automatic distribution cabinet. Referring to the above application documents, although it can release the instantaneous high-temperature and high-pressure gas, it has many structures, and the weight of the structure itself limits the speed of release of the high-temperature and high-pressure gas. After one release, due to its weight and other reasons, the high-temperature and high-pressure gas cannot be fully discharged, and the top plate after ejection is located at the top of the high-temperature and high-pressure gas flow channel, further affecting the release speed, and it can only release high-temperature and high-pressure gas instantaneously, but it is not easy to discharge the high-temperature and high-pressure gas remaining in the distribution cabinet. There are certain shortcomings. In order to solve the above problems, a power-off uninterrupted automatic distribution cabinet is proposed. Summary of the Invention

[0006] In order to overcome the shortcomings of the above-mentioned prior art, the present invention provides an uninterrupted self-closing distribution cabinet in the event of power failure, which facilitates the rapid discharge of high-temperature and high-pressure gas without obstructing the flow channel of the high-temperature and high-pressure gas, further affecting the release speed, and facilitates the discharge of high-temperature and high-pressure gas remaining in the distribution cabinet, facilitates actual pressure relief use, and improves the safety of the distribution cabinet.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a power failure uninterruptible automatic switching distribution cabinet, including a distribution cabinet, a mounting mechanism arranged on the top of the distribution cabinet, and a pressure relief mechanism arranged on the top of the distribution cabinet through the mounting mechanism, wherein the mounting mechanism includes:

[0008] The bottom frame is detachably mounted on the top of the power distribution cabinet. The outer wall of the bottom frame is sleeved with a top frame. Both sides of the outer wall of the top frame are provided with clamping components for clamping with the bottom frame. The outer wall of the bottom frame is provided with an abutment component for limiting the clamping component.

[0009] The pressure relief mechanism comprises:

[0010] The first frame is fixedly mounted on the upper end of the inner wall of the top frame and extends to the inner side of the bottom frame. The second frame is fixedly mounted on the inner wall of the first frame. The inner side of the second frame is provided with flip assemblies arranged at intervals. The flip assemblies include:

[0011] A fixed rod is arranged on the inner wall of the second frame. A sleeve is slidably provided on the side wall of the fixed rod so that the sleeve can rotate around the central axis of the fixed rod. A baffle is fixedly provided on the outer wall of the sleeve so that when pressurized gas appears in the distribution cabinet, the baffle is driven to flip by the pressure of the gas, thereby passively relieving the pressure in the distribution cabinet. A pressure relief component for actively relieving the pressure in the distribution cabinet is provided on the outside of the distribution cabinet.

[0012] Furthermore, the flip assembly further comprises:

[0013] A connecting cover is fixedly provided at both ends of the sleeve, with the end of the connecting cover away from the sleeve and both ends of the fixing rod extending into the first frame. A spring is provided on the inner side of the end of the connecting cover located in the first frame, and the ends of the spring are respectively fixedly connected to the inner wall of the connecting cover and the side wall of the fixing rod, so that the baffle has a tendency to flip downward;

[0014] The fixing members are fixedly arranged at both ends of the fixing rod, and the outer sides of the fixing members are fixedly connected to the first frame body to fix the fixing rod.

[0015] Furthermore, the flip assembly further comprises:

[0016] A fixed frame is fixed to the inner wall of the second frame body and sleeved on the outer wall of the sleeve, so that the sleeve rotates inside the fixed frame, thereby limiting the upward flipping position of the baffle through the top of the fixed frame;

[0017] A limit plate is fixed on the top of the fixed frame and extends to the bottom of the baffle to support the baffle from the bottom. The limit plate is symmetrically arranged around the center point of the fixed frame.

[0018] An annular slider is fixedly sleeved on both ends of the side walls of the fixed rod. Both ends of the inner wall of the sleeve are provided with annular grooves. The annular slider is placed in the annular groove to rotate the sleeve, thereby limiting the flipping of the sleeve and the baffle. An adsorption component is provided on the inner side of the baffle.

[0019] Furthermore, the adsorption component includes:

[0020] The bottom plate is fixedly arranged on a side of the fixed frame away from the sleeve and the inner wall of the second frame body, and a magnet strip is fixedly arranged on the top of the bottom plate;

[0021] The magnetic metal strip is fixed to the bottom of the baffle and is located on the side of the baffle away from the sleeve. The top of the base plate and the bottom of the baffle are both provided with mounting grooves for mounting the magnet strip and the magnetic metal strip, so that after the magnetic metal strip and the magnet strip are magnetically attracted, the bottom of the baffle fits with the top of the base plate.

[0022] Furthermore, the pressure relief assembly includes an ejection assembly arranged on the side wall of the bottom plate, and the ejection assembly includes:

[0023] The mounting plate is fixed to the side wall of the base plate, a shell is fixed to the bottom of the mounting plate, a through hole is opened on the top of the shell and extends to the top of the mounting plate, a cylinder is fixedly sleeved on the inner wall of the shell, and the inner wall diameter of the shell is larger than the outer wall diameter of the cylinder, a piston block is sleeved on the inner wall of the cylinder, and the side wall of the piston block is sealed to the inner wall of the cylinder.

[0024] Furthermore, the ejection assembly further includes:

[0025] The rod body is fixed on the top of the piston block and extends to the top of the cylinder body. A top plate is fixed on the top of the rod body, and the side wall of the top plate is sleeved on the inner side of the mounting plate. The side wall of the rod body is located between the piston block and the top inner wall of the cylinder body and is sleeved with a spring to make the piston block tend to move downward.

[0026] Furthermore, the ejection assembly further includes:

[0027] An air intake pipe is fixedly arranged at the bottom of the shell and extends into the cylinder body, and one end of the air intake pipe located in the cylinder body is located at the bottom of the piston block;

[0028] The air guide hole is opened on the side wall of the cylinder body, and the inner wall diameter of the air guide hole is smaller than the inner wall diameter of the intake pipe;

[0029] The ring body is fixedly sleeved on the inner wall of the mounting plate, and the inner wall of the ring body is fixedly connected to the outer wall of the cylinder body. An air guide groove is provided on the top of the ring body and at the top of the air guide hole.

[0030] Furthermore, the pressure relief assembly further comprises:

[0031] The suction fan is fixed on the outer wall of the distribution cabinet, and the air inlet end of the suction fan extends into the distribution cabinet. The exhaust end of the suction fan is fixed with an exhaust pipe. A diversion pipe is fixed on the top of the outer wall of the exhaust pipe through a multi-way pipe. The diversion pipe extends to the inner side of the second frame. The bottom of the air inlet pipe is fixedly connected to the top of the diversion pipe and is connected to each other. A first valve is provided on the outer wall of the diversion pipe, and a second valve is provided on the outer wall of the exhaust pipe and on the side of the diversion pipe away from the suction fan.

[0032] Furthermore, the clamping assembly includes:

[0033] A clamping claw is fixedly arranged on the outer wall of the top frame, and a first plane is arranged on the inner side of the bottom of the clamping claw;

[0034] The clamping groove is provided on the outer wall of the bottom frame and is adapted to the clamping claw. The top inner wall of the clamping groove is provided with a second plane. When the clamping claw is inserted into the clamping groove, the first plane and the second plane abut against each other.

[0035] The first arc surface is provided at the bottom of the clamping claw, and the second arc surface is provided on the outer side of the top of the bottom frame. The first arc surface and the second arc surface are in contact with each other so that the clamping claw moves smoothly downward along the outer wall of the bottom frame.

[0036] Furthermore, the abutment assembly includes:

[0037] The abutting claw is fixedly provided on the outer wall of the bottom frame and is symmetrically arranged about the center point of the bottom frame. The abutting claw and the clamping claw are both made of elastic metal material. The inner side of the abutting claw is provided with an abutting inclined surface. The abutting inclined surface cooperates with the first arc surface so that when the clamping claw moves downward, the clamping claw smoothly enters the inner side of the abutting claw.

[0038] The abutment groove is formed on the outer side wall of the clamping claw and is matched with the abutment claw.

[0039] The present invention provides a power distribution cabinet that is uninterrupted and self-restarting in case of power failure. Compared with the prior art, it has the following advantages:

[0040] Beneficial effects:

[0041] 1. The present invention uses a pressure relief mechanism to allow high-temperature and high-pressure gas to directly contact the baffle, and drives the baffle to rotate to release the high-temperature and high-pressure gas, thereby avoiding the inability of high-temperature and high-pressure gas to be released due to the large number of transmission structures and the weight of the transmission structure itself in traditional distribution cabinets, thereby improving the stability of high-temperature and high-pressure gas release. After the baffle is flipped, it does not block the upward discharge channel of the high-temperature and high-pressure gas, further improving the pressure relief efficiency. The installation mechanism facilitates the installation and disassembly of the pressure relief mechanism, thereby avoiding the situation where the pressure relief mechanism of the distribution cabinet cannot be disassembled or is difficult to disassemble after a failure or combustion due to the use of traditional screw fixing methods, so as to facilitate the recycling of the pressure relief mechanism, and is convenient for actual disassembly and use, and easy to operate.

[0042] 2. The present invention uses a spring to make the baffle have a tendency to rotate downward, and cooperates with the bottom plate to cover the top of the distribution cabinet when the high-temperature and high-pressure gas is not released, which is convenient for practical use. The rotation of the sleeve and the baffle is limited by the annular slider and the annular groove to improve the stability of the baffle rotation, and facilitate the magnetic limitation of the adsorption component, thereby improving the stability of the baffle covering the top of the distribution cabinet.

[0043] 3. The present invention drives the baffle to flip through the pressure relief component, thereby facilitating the upward flow and discharge of the high-temperature and high-pressure gas remaining in the distribution cabinet, reducing the damage caused to the distribution cabinet and its internal structure by the high-temperature and high-pressure gas remaining in the distribution cabinet, and reducing the accumulation of a large amount of residual high-temperature and high-pressure gas in the distribution cabinet due to insufficient pressure, causing combustion or even explosion in the distribution cabinet.

[0044] 4. The present invention facilitates the discharge of high-temperature and high-pressure gas discharged from the cylinder to the outside through the gas guide groove and the gas guide hole, thereby preventing a large amount of gas from being retained in the cylinder. The inner wall diameter of the gas guide hole is smaller than the inner wall diameter of the intake pipe, ensuring that the gas has pressure in the cylinder to lift the piston block, etc., thereby avoiding affecting the movement of the rod body. In addition, by cooperating with the first valve and the second valve to adjust the flow rate of the gas in the exhaust pipe and the diverter pipe, the displacement of the exhaust pipe and the degree of flipping of the baffle can be adjusted according to actual conditions, which is convenient for actual pressure relief.

[0045] 5. The present invention facilitates the clamping and fixing of the top frame and the bottom frame through the clamping assembly, thereby facilitating the disassembly and assembly of the pressure relief mechanism, and uses the abutment assembly to tighten and limit the clamping claws to prevent the clamping claws from being separated from the clamping grooves, further improving the stability of the installation, and does not use traditional bolts for fixing, thereby avoiding the situation where the pressure relief mechanism of the distribution cabinet cannot be disassembled or is difficult to disassemble after a failure or combustion, so as to facilitate the recycling of the pressure relief mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 This is a schematic diagram of the overall structure of the uninterrupted automatic switching power distribution cabinet applicable to power failure of the present invention;

[0047] Figure 2 This is a schematic diagram of the explosion structure of the power distribution cabinet, installation mechanism and pressure relief mechanism of the present invention;

[0048] Figure 3 It is a schematic structural diagram of the mounting mechanism and pressure relief mechanism of the present invention;

[0049] Figure 4 This is a schematic diagram of the explosion structure of the installation mechanism and the pressure relief mechanism of the present invention;

[0050] Figure 5 It is a schematic diagram of the exploded structure of the clamping assembly and the abutting assembly of the present invention;

[0051] Figure 6It is a schematic cross-sectional structural diagram of the top frame and the first frame body of the present invention;

[0052] Figure 7 This is a schematic diagram of the explosion structure of the pressure relief assembly and the second frame of the present invention;

[0053] Figure 8 This is a schematic cross-sectional structural diagram of a second frame of the present invention;

[0054] Figure 9 This is a schematic structural diagram of the second frame, shunt pipe, baffle and ejection assembly of the present invention;

[0055] Figure 10 This is a schematic diagram of the exploded structure of the flip assembly of the present invention;

[0056] Figure 11 It is a schematic cross-sectional view of the sleeve and the fixing frame of the present invention;

[0057] Figure 12 It is a schematic structural diagram of the adsorption component of the present invention;

[0058] Figure 13 It is a schematic structural diagram of the manifold and ejection assembly of the present invention;

[0059] Figure 14 Schematic diagram of the structure of the air guide holes and air guide grooves of the present invention;

[0060] Figure 15 This is a schematic diagram of the baffle flipping structure of the present invention;

[0061] Figure 16 This is a schematic diagram of the artificial zero-crossing fast module of the present invention.

[0062] Reference numerals in the above drawings: 1. power distribution cabinet; 2. mounting mechanism; 3. pressure relief mechanism; 4. manual zero-crossing fast module;

[0063] 21. Bottom frame; 22. Top frame; 23. Snap-fit assembly; 24. Abutment assembly;

[0064] 231, clamping claw; 232, first plane; 233, second arc surface; 234, clamping groove; 235, first arc surface; 236, second plane;

[0065] 241, abutting claw; 242, abutting groove; 243, abutting inclined surface;

[0066] 31. Flip assembly; 32. First frame; 33. Second frame; 34. Pressure relief assembly;

[0067] 310, adsorption assembly; 311, baffle; 312, connecting cover; 313, fixing piece; 314, fixing rod; 315, spring; 316, annular slider; 317, sleeve; 318, fixing frame; 319, limit plate;

[0068] 3101, magnetic metal strip; 3102, magnet strip; 3103, bottom plate;

[0069] 341. Suction fan; 342. Second valve; 343. Exhaust pipe; 344. First valve; 345. Diverter pipe; 346. Ejector assembly;

[0070] 3460, air guide groove; 3461, mounting plate; 3462, air guide hole; 3463, piston block; 3464, air intake pipe; 3465, housing; 3466, cylinder body; 3467, ring body; 3468, top plate; 3469, rod body. DETAILED DESCRIPTION

[0071] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0072] Example 1: Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 15 A power distribution cabinet with uninterrupted automatic switching in case of power failure, comprising a power distribution cabinet 1, a mounting mechanism 2 arranged on the top of the power distribution cabinet 1 and a pressure relief mechanism 3 arranged on the top of the power distribution cabinet 1 through the mounting mechanism 2;

[0073] See also Figure 4 and Figure 5 , the mounting mechanism 2 includes:

[0074] The bottom frame 21 is detachably mounted on the top of the power distribution cabinet 1. The outer wall of the bottom frame 21 is provided with a top frame 22. Both sides of the outer wall of the top frame 22 are provided with a clamping assembly 23 for clamping with the bottom frame 21. The outer wall of the bottom frame 21 is provided with an abutment assembly 24 for limiting the clamping assembly 23.

[0075] See also Figure 7 、 Figure 8 and Figure 9 , the pressure relief mechanism 3 includes:

[0076] The first frame 32 is fixed to the upper end of the inner wall of the top frame 22 and extends to the inner side of the bottom frame 21. The second frame 33 is fixed to the inner wall of the first frame 32. The flip components 31 are arranged at intervals on the inner side of the second frame 33.

[0077] See also Figure 10 and Figure 11 , the flip assembly 31 includes:

[0078] The fixed rod 314 is arranged on the inner wall of the second frame 33. The side wall of the fixed rod 314 is slidably provided with a sleeve 317 so that the sleeve 317 can rotate around the central axis of the fixed rod 314. The outer wall of the sleeve 317 is fixedly provided with a baffle 311. When pressurized gas appears in the distribution cabinet 1, the baffle 311 is driven to flip by the pressure of the gas, thereby passively relieving the pressure in the distribution cabinet 1. A pressure relief component 34 for actively relieving the pressure in the distribution cabinet 1 is provided on the outside of the distribution cabinet 1.

[0079] The flip assembly 31 further includes:

[0080] The connecting cover 312 is fixedly mounted at both ends of the sleeve 317. The end of the connecting cover 312 away from the sleeve 317 and both ends of the fixing rod 314 extend into the first frame 32. A spring 315 is disposed on the inner side of the end of the connecting cover 312 located within the first frame 32. The ends of the spring 315 are respectively fixedly connected to the inner wall of the connecting cover 312 and the side wall of the fixing rod 314, so that the baffle 311 has a tendency to flip downward.

[0081] The fixing members 313 are fixedly disposed at both ends of the fixing rod 314 , and the outer sides of the fixing members 313 are fixedly connected to the first frame 32 to fix the fixing rod 314 .

[0082] The flip assembly 31 further includes:

[0083] The fixing frame 318 is fixed to the inner wall of the second frame body 33 and sleeved on the outer wall of the sleeve 317, so that the sleeve 317 rotates inside the fixing frame 318, thereby limiting the upward flipping position of the baffle 311 through the top of the fixing frame 318;

[0084] The limiting plate 319 is fixed to the top of the fixing frame 318 and extends to the bottom of the baffle 311 to support the baffle 311 from the bottom. The limiting plate 319 is symmetrically arranged around the center point of the fixing frame 318;

[0085] The annular slider 316 is fixedly sleeved on both ends of the side walls of the fixed rod 314. Both ends of the inner wall of the sleeve 317 are provided with annular grooves. The annular slider 316 is placed in the annular groove to rotate the sleeve 317, thereby limiting the flipping of the sleeve 317 and the baffle 311. An adsorption component 310 is provided on the inner side of the baffle 311.

[0086] During specific implementation, when high-temperature and high-pressure gas appears in the power distribution cabinet 1, the gas is blown into the second frame 33 through the exhaust hole on the top of the power distribution cabinet 1, thereby driving the baffle 311 to overcome the elastic force of the spring 315 and rotate, so that the baffle 311 flips upward, thereby facilitating the rapid discharge of the high-temperature and high-pressure gas, thereby reducing damage to the power distribution cabinet 1. By providing a rotatable baffle 311, the high-temperature and high-pressure gas directly contacts the baffle 311 and drives the baffle 311 to rotate to release the high-temperature and high-pressure gas, thereby avoiding the traditional power distribution cabinet 1. Due to the large number of transmission structures and the weight of the transmission structure itself, the high-temperature and high-pressure gas cannot be released, thereby improving the stability of the release of the high-temperature and high-pressure gas. After the baffle 311 flips over, it does not block the discharge channel of the high-temperature and high-pressure gas, thereby improving the pressure relief efficiency.

[0087] By providing the spring 315, the baffle 311 always has a tendency to rotate downward, and cooperates with the bottom plate 3103 to shield the top of the power distribution cabinet 1 when the high-temperature and high-pressure gas is not released, which is convenient for actual use. The baffle 311 is supported from both sides of the bottom of the baffle 311 by the limiting plate 319 and the bottom plate 3103, thereby improving the stability of the baffle 311. The baffle 311 is limited from the top of the baffle 311 by the fixing frame 318, thereby preventing the baffle 311 from excessively turning over due to excessive instantaneous high-temperature and high-pressure gas pressure, thereby improving the stability of the baffle 311 in use.

[0088] The annular slider 316 and the annular groove limit the rotation of the sleeve 317 to improve the stability of the rotation of the sleeve 317, facilitate the magnetic limit of the adsorption component 310, and improve the stability of the baffle 311 in blocking the top of the distribution cabinet 1;

[0089] The inner wall of the first frame body 32 is provided with a groove for sleeve-mounting the connecting cover 312 , so that the connecting cover 312 can be rotated for use, and the fixing member 313 is fixedly connected to the inner wall of the groove so as to fix the fixing rod 314 .

[0090] See also Figure 12 , the adsorption component 310 includes:

[0091] The bottom plate 3103 is fixed to the side of the fixing frame 318 away from the sleeve 317 and the inner wall of the second frame body 33. The top of the bottom plate 3103 is fixed with a magnet bar 3102;

[0092] The magnetic metal strip 3101 is fixed to the bottom of the baffle 311 and is located on the side of the baffle 311 away from the sleeve 317. The top of the bottom plate 3103 and the bottom of the baffle 311 are both provided with mounting grooves for mounting the magnet strip 3102 and the magnetic metal strip 3101, so that after the magnetic metal strip 3101 and the magnet strip 3102 are magnetically attracted, the bottom of the baffle 311 fits with the top of the bottom plate 3103.

[0093] In a specific implementation, when the top of the bottom plate 3103 contacts the bottom of the baffle 311, under the limitation of the annular slider 316 and the annular slide groove, the magnet strip 3102 fits the magnetic metal strip 3101, thereby limiting the baffle 311, thereby further enhancing the stability of the baffle 311 in shielding the top of the distribution cabinet 1;

[0094] Since the flip components 31 are arranged at intervals, the bottom plate 3103 is set in the fixed frame 318 away from the sleeve 317 and the inner wall of the second frame body 33, so as to correspond to the position of the baffle 311, which is convenient for magnetic attraction limiting and supporting the baffle 311.

[0095] See also Figure 7 、 Figure 9 、 Figure 13 and Figure 14 The pressure relief assembly 34 includes an ejection assembly 346 disposed on the side wall of the bottom plate 3103. The ejection assembly 346 includes:

[0096] The mounting plate 3461 is fixed on the side wall of the base plate 3103. The bottom of the mounting plate 3461 is fixed with a shell 3465. The top of the shell 3465 is provided with a through hole extending to the top of the mounting plate 3461. The inner wall of the shell 3465 is fixedly sleeved with a cylinder body 3466, and the inner wall diameter of the shell 3465 is larger than the outer wall diameter of the cylinder body 3466. The inner wall of the cylinder body 3466 is sleeved with a piston block 3463, and the side wall of the piston block 3463 is sealed with the inner wall of the cylinder body 3466.

[0097] The rod body 3469 is fixed on the top of the piston block 3463 and extends to the top of the cylinder body 3466. The top of the rod body 3469 is fixed with a top plate 3468, and the side wall of the top plate 3468 is sleeved on the inner side of the mounting plate 3461. The side wall of the rod body 3469 is located between the piston block 3463 and the top inner wall of the cylinder body 3466, so that the piston block 3463 has a tendency to move downward.

[0098] The ejection assembly 346 also includes:

[0099] The air inlet pipe 3464 is fixed to the bottom of the housing 3465 and extends into the cylinder 3466. One end of the air inlet pipe 3464 located in the cylinder 3466 is located at the bottom of the piston block 3463.

[0100] The air guide hole 3462 is formed in the side wall of the cylinder body 3466 , and the inner wall diameter of the air guide hole 3462 is smaller than the inner wall diameter of the air inlet pipe 3464 ;

[0101] The ring body 3467 is fixedly mounted on the inner wall of the mounting plate 3461 , and the inner wall of the ring body 3467 is fixedly connected to the outer wall of the cylinder body 3466 . An air guide groove 3460 is provided at the top of the ring body 3467 and at the top of the air guide hole 3462 .

[0102] The pressure relief assembly 34 also includes:

[0103] The suction fan 341 is fixed on the outer wall of the distribution cabinet 1, and the air inlet end of the suction fan 341 extends into the distribution cabinet 1. The exhaust end of the suction fan 341 is fixed with an exhaust pipe 343. A diverter pipe 345 is fixed on the top of the outer wall of the exhaust pipe 343 through a multi-way pipe. The diverter pipe 345 extends to the inner side of the second frame 33. The bottom of the air inlet pipe 3464 is fixedly connected to the top of the diverter pipe 345 and is connected to each other. A first valve 344 is provided on the outer wall of the diverter pipe 345, and a second valve 342 is provided on the outer wall of the exhaust pipe 343 and on the side of the diverter pipe 345 away from the suction fan 341.

[0104] During specific implementation, after the instantaneous high-temperature and high-pressure gas in the distribution cabinet 1 is released, a large amount of high-temperature and high-pressure gas will still remain in the distribution cabinet 1. In order to reduce the damage caused by the gas to the distribution cabinet 1, the suction fan 341 is started, and the gas in the distribution cabinet 1 is discharged through the exhaust pipe 343 by the suction fan 341, thereby facilitating the release of the high-temperature and high-pressure gas remaining in the distribution cabinet 1. However, since there are many structures in the distribution cabinet 1, the flow of the gas is affected, and the high-temperature and high-pressure gas is affected by its properties and tends to flow upward, resulting in the suction fan 341 being unable to quickly discharge the high-temperature and high-pressure gas remaining in the distribution cabinet 1. When the exhaust fan 341 is exhausted, part of the gas discharged from the suction fan 341 is discharged into the air inlet pipe 3464 through the diverter pipe 345, and then discharged into the cylinder 3466 through the air inlet pipe 3464, thereby driving the piston block 3463 and the rod body 3469 to move upward, and driving the baffle 311 to flip through the top plate 3468, so as to facilitate the upward circulation and discharge of the high-temperature and high-pressure gas, thereby reducing the damage caused by the high-temperature and high-pressure gas remaining in the distribution cabinet 1 to the distribution cabinet 1 and its internal structure, and reducing the accumulation of a large amount of residual high-temperature and high-pressure gas in the distribution cabinet 1 due to insufficient pressure, which may cause combustion or even explosion in the distribution cabinet 1;

[0105] The gas entering the cylinder 3466 is easily discharged through the gas guide hole 3462, and the gas guide groove 3460 is provided to facilitate the discharge of the gas discharged through the gas guide hole 3462 to the outside, thereby preventing a large amount of gas from being retained in the cylinder 3466. The inner wall diameter of the gas guide hole 3462 is smaller than the inner wall diameter of the air inlet pipe 3464, ensuring that the gas has pressure in the cylinder 3466 to lift the piston block 3463, thereby preventing the movement of the rod body 3469 from being affected.

[0106] The top plate 3468 increases the contact area between the rod 3469 and the baffle 311, making it easier for the baffle 311 to flip over to a greater extent. The top plate 3468 also limits the rod 3469 to prevent it from entering the cylinder 3466, thereby improving the stability of use.

[0107] The first valve 344 and the second valve 342 cooperate to adjust the flow of gas in the exhaust pipe 343 and the diversion pipe 345, so as to adjust the displacement of the exhaust pipe 343 and the degree of flipping of the baffle 311 according to actual conditions, thereby facilitating actual pressure relief.

[0108] Example 2: Please refer to Figure 4 、 Figure 5 and Figure 6 The difference between this embodiment and the first embodiment is that the clamping assembly 23 includes:

[0109] The clamping claw 231 is fixedly mounted on the outer wall of the top frame 22 , and a first flat surface 232 is provided on the inner side of the bottom of the clamping claw 231 ;

[0110] The engaging groove 234 is formed on the outer wall of the bottom frame 21 and is adapted to the engaging claw 231. A second flat surface 236 is provided on the top inner wall of the engaging groove 234. When the engaging claw 231 is inserted into the engaging groove 234, the first flat surface 232 and the second flat surface 236 abut against each other.

[0111] The first curved surface 235 is formed at the bottom of the engaging claw 231 , and the second curved surface 233 is formed on the top outer side of the bottom frame 21 . The first curved surface 235 and the second curved surface 233 are in contact with each other, so that the engaging claw 231 can move smoothly downward along the outer wall of the bottom frame 21 .

[0112] During the specific implementation, the bottom frame 21 is fixed to the top of the power distribution cabinet 1 by bolts or the like, and the inner wall of the bottom frame 21 is located outside the exhaust hole at the top of the power distribution cabinet 1 to avoid affecting the outward flow of high-temperature and high-pressure gas in the power distribution cabinet 1. Then, the top frame 22 is sleeved from the top of the bottom frame 21 to the outside of the bottom frame 21. During this process, the first curved surface 235 and the second curved surface 233 contact and continuously squeeze the clamping claw 231. Since the clamping claw 231 is made of elastic metal material, the clamping claw 231 enters the clamping groove 234 along the outside of the bottom frame 21, thereby clamping and fixing the bottom frame 21 and the top frame 22. No traditional bolts are used for fixing, which facilitates disassembly.

[0113] By setting the first curved surface 235 and the second curved surface 233, it is convenient for the clamping claw 231 to move downward along the outer side of the bottom frame 21, so that the clamping claw 231 is conveniently inserted into the clamping groove 234. After the clamping claw 231 is inserted into the clamping groove 234 through the first plane 232 and the second plane 236, the second plane 236 resists the first plane 232, thereby avoiding the generation of high-temperature and high-pressure gas in the distribution cabinet 1, which affects the stability of the pressure relief mechanism 3 and the like.

[0114] The abutment assembly 24 comprises:

[0115] The abutting claw 241 is fixed to the outer wall of the bottom frame 21 and is symmetrically arranged about the center point of the bottom frame 21. The abutting claw 241 and the engaging claw 231 are both made of elastic metal. The inner side of the abutting claw 241 is provided with an abutting inclined surface 243. The abutting inclined surface 243 cooperates with the first curved surface 235 so that when the engaging claw 231 moves downward, the engaging claw 231 smoothly enters the inner side of the abutting claw 241.

[0116] The abutting groove 242 is formed on the outer wall of the engaging claw 231 and is adapted to fit the abutting claw 241 .

[0117] When the clamping claw 231 enters the clamping groove 234, the abutting claw 241 is embedded in the abutting groove 242, thereby abutting the clamping claw 231 from the outside of the clamping claw 231, preventing the clamping claw 231 from being separated from the clamping groove 234, thereby improving the stability of the connection. When the pressure relief mechanism 3 needs to be removed, the abutting claw 241 is flipped outward to separate the abutting claw 241 from the abutting groove 242. Then, the clamping claw 231 is flipped outward to separate the clamping claw 231 from the clamping groove 234, and the top frame 22 and the bottom frame 21 can be separated, thereby facilitating the disassembly of the pressure relief mechanism 3, etc., without the need for traditional bolts for disassembly, improving the stability of disassembly, facilitating multiple uses of the pressure relief mechanism 3, and facilitating recycling.

[0118] By making the first arc surface 235 cooperate with the abutting inclined surface 243, the engaging claw 231 moves downward along the inner side of the abutting claw 241, and the engaging claw 231 is tightened by the abutting inclined surface 243, so that the engaging claw 231 moves along the outer wall of the bottom frame 21, and the engaging claw 231 enters the engaging groove 234.

[0119] The abutting claw 241 and the clamping claw 231 are both made of elastic metal material, which is designed to allow the clamping claw 231 and the abutting claw 241 to recover after deformation, so as to fit the clamping groove 234 and the abutting groove 242 together, which is convenient for actual limiting use. The expansion and contraction characteristics of the elastic metal material are not included, which depends on the actual design and will not be elaborated here.

[0120] The suction fan 341 of the present invention is connected to an external power supply and a controller via a wire for practical control and use. The above are all prior arts and will not be elaborated here.

[0121] When the present invention is implemented:

[0122] S1: When pressurized gas is generated in the distribution cabinet 1, the pressurized gas drives the baffle 311 to flip, thereby discharging the pressurized gas in the distribution cabinet 1;

[0123] S2: After part of the pressurized gas is discharged, the gas pressure in the distribution cabinet 1 decreases, that is, the pressure in the distribution cabinet 1 is continuously relieved through the pressure relief component 34, thereby reducing the amount of high-temperature and high-pressure gas accumulated in the distribution cabinet 1 due to residual or subsequent continuous discharge, thereby reducing damage to the switch components and the like in the distribution cabinet 1;

[0124] S3: When the distribution cabinet 1 cannot be used due to pressurized gas or faults, the pressure relief mechanism 3 is separated from the distribution cabinet 1 by the installation mechanism 2, and the pressure relief mechanism 3 is installed on a new distribution cabinet 1 to facilitate the disassembly and assembly of the pressure relief mechanism 3. When the distribution cabinet 1 is damaged, the traditional bolt fixing method will cause it to get stuck, thereby reducing the inconvenience of disassembly caused by the traditional bolt fixing method;

[0125] like Figure 1 and Figure 16 As shown, a manual zero-crossing fast module 4 is provided in the distribution cabinet 1 and is connected in parallel at both ends of the fast circuit breaker. It is used to quickly complete the zero-crossing opening of the main power circuit breaker and the fast closing of the backup power circuit breaker when an external network failure occurs. This is the existing technology and will not be elaborated here.

[0126] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0127] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0128] While embodiments of the present invention have been shown and described, it will be appreciated 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 invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A power distribution cabinet with uninterrupted automatic switching in case of power failure, comprising a power distribution cabinet, characterized in that: It also includes a mounting mechanism arranged on the top of the power distribution cabinet and a pressure relief mechanism arranged on the top of the power distribution cabinet through the mounting mechanism. The mounting mechanism includes: The bottom frame is detachably mounted on the top of the power distribution cabinet. The outer wall of the bottom frame is sleeved with a top frame. Both sides of the outer wall of the top frame are provided with clamping components for clamping with the bottom frame. The outer wall of the bottom frame is provided with an abutment component for limiting the clamping component. The pressure relief mechanism comprises: The first frame is fixedly mounted on the upper end of the inner wall of the top frame and extends to the inner side of the bottom frame. The second frame is fixedly mounted on the inner wall of the first frame. The inner side of the second frame is provided with flip assemblies arranged at intervals. The flip assemblies include: A fixed rod is arranged on the inner wall of the second frame. A sleeve is slidably provided on the side wall of the fixed rod so that the sleeve can rotate around the central axis of the fixed rod. A baffle is fixedly provided on the outer wall of the sleeve so that when pressurized gas appears in the distribution cabinet, the baffle is driven to flip by the pressure of the gas, thereby passively relieving the pressure in the distribution cabinet. A pressure relief component for actively relieving the pressure in the distribution cabinet is provided on the outside of the distribution cabinet.

2. The uninterrupted automatic switching power distribution cabinet according to claim 1, characterized in that: The flip assembly further comprises: A connecting cover is fixedly provided at both ends of the sleeve, with the end of the connecting cover away from the sleeve and both ends of the fixing rod extending into the first frame. A spring is provided on the inner side of the end of the connecting cover located in the first frame, and the ends of the spring are respectively fixedly connected to the inner wall of the connecting cover and the side wall of the fixing rod, so that the baffle has a tendency to flip downward; The fixing members are fixedly arranged at both ends of the fixing rod, and the outer sides of the fixing members are fixedly connected to the first frame body to fix the fixing rod.

3. The uninterrupted automatic switching power distribution cabinet according to claim 2, characterized in that: The flip assembly further comprises: A fixed frame is fixed to the inner wall of the second frame body and sleeved on the outer wall of the sleeve, so that the sleeve rotates inside the fixed frame, thereby limiting the upward flipping position of the baffle through the top of the fixed frame; A limit plate is fixed on the top of the fixed frame and extends to the bottom of the baffle to support the baffle from the bottom. The limit plate is symmetrically arranged around the center point of the fixed frame. An annular slider is fixedly sleeved on both ends of the side walls of the fixed rod. Both ends of the inner wall of the sleeve are provided with annular grooves. The annular slider is placed in the annular groove to rotate the sleeve, thereby limiting the flipping of the sleeve and the baffle. An adsorption component is provided on the inner side of the baffle.

4. The uninterrupted automatic switching power distribution cabinet according to claim 3, characterized in that: The adsorption component includes: The bottom plate is fixedly arranged on a side of the fixed frame away from the sleeve and the inner wall of the second frame body, and a magnet strip is fixedly arranged on the top of the bottom plate; The magnetic metal strip is fixed to the bottom of the baffle and is located on the side of the baffle away from the sleeve. The top of the base plate and the bottom of the baffle are both provided with mounting grooves for mounting the magnet strip and the magnetic metal strip, so that after the magnetic metal strip and the magnet strip are magnetically attracted, the bottom of the baffle fits with the top of the base plate.

5. The uninterrupted automatic switching power distribution cabinet according to claim 4, characterized in that: The pressure relief assembly includes an ejection assembly arranged on the side wall of the bottom plate, and the ejection assembly includes: The mounting plate is fixed to the side wall of the base plate, a shell is fixed to the bottom of the mounting plate, a through hole is opened on the top of the shell and extends to the top of the mounting plate, a cylinder is fixedly sleeved on the inner wall of the shell, and the inner wall diameter of the shell is larger than the outer wall diameter of the cylinder, a piston block is sleeved on the inner wall of the cylinder, and the side wall of the piston block is sealed to the inner wall of the cylinder.

6. The uninterrupted automatic switching power distribution cabinet according to claim 5, characterized in that: The ejection assembly further comprises: The rod body is fixed on the top of the piston block and extends to the top of the cylinder body. A top plate is fixed on the top of the rod body, and the side wall of the top plate is sleeved on the inner side of the mounting plate. The side wall of the rod body is located between the piston block and the top inner wall of the cylinder body and is sleeved with a spring to make the piston block tend to move downward.

7. The uninterrupted automatic switching power distribution cabinet according to claim 6, characterized in that: The ejection assembly further comprises: An air intake pipe is fixedly arranged at the bottom of the shell and extends into the cylinder body, and one end of the air intake pipe located in the cylinder body is located at the bottom of the piston block; The air guide hole is opened on the side wall of the cylinder body, and the inner wall diameter of the air guide hole is smaller than the inner wall diameter of the intake pipe; The ring body is fixedly sleeved on the inner wall of the mounting plate, and the inner wall of the ring body is fixedly connected to the outer wall of the cylinder body. An air guide groove is provided on the top of the ring body and at the top of the air guide hole.

8. The uninterrupted automatic switching power distribution cabinet according to claim 7, characterized in that: The pressure relief assembly further comprises: The suction fan is fixed on the outer wall of the distribution cabinet, and the air inlet end of the suction fan extends into the distribution cabinet. The exhaust end of the suction fan is fixed with an exhaust pipe. A diversion pipe is fixed on the top of the outer wall of the exhaust pipe through a multi-way pipe. The diversion pipe extends to the inner side of the second frame. The bottom of the air inlet pipe is fixedly connected to the top of the diversion pipe and is connected to each other. A first valve is provided on the outer wall of the diversion pipe, and a second valve is provided on the outer wall of the exhaust pipe and on the side of the diversion pipe away from the suction fan.

9. The uninterrupted automatic switching power distribution cabinet according to claim 1, characterized in that: The clamping assembly comprises: A clamping claw is fixedly arranged on the outer wall of the top frame, and a first plane is arranged on the inner side of the bottom of the clamping claw; The clamping groove is provided on the outer wall of the bottom frame and is adapted to the clamping claw. The top inner wall of the clamping groove is provided with a second plane. When the clamping claw is inserted into the clamping groove, the first plane and the second plane abut against each other. The first arc surface is provided at the bottom of the clamping claw, and the second arc surface is provided on the outer side of the top of the bottom frame. The first arc surface and the second arc surface are in contact with each other so that the clamping claw moves smoothly downward along the outer wall of the bottom frame.

10. The uninterrupted automatic switching power distribution cabinet according to claim 9, characterized in that: The abutment assembly comprises: The abutting claw is fixed on the outer wall of the bottom frame and is symmetrically arranged around the center point of the bottom frame. Both the abutting claw and the clamping claw are made of elastic metal material. An abutting inclined surface is provided on the inner side of the abutting claw. The abutting inclined surface cooperates with the first arc surface so that when the clamping claw moves downward, the clamping claw smoothly enters the inner side of the abutting claw; the abutting groove is opened on the outer wall of the clamping claw and is adapted to the abutting claw.

Images