Low-voltage cabinet with safety protection function

Abstract

The invention relates to the technical field of low-voltage cabinets, and discloses a low-voltage cabinet with a safety protection function, which comprises a low-voltage cabinet body and an air inlet frame, and is characterized in that the air inlet frame is arranged on one side of the low-voltage cabinet body; the filtering mechanism is arranged on one side of the air inlet frame, and the filtering mechanism filters inlet air through a moving plate and a filtering plate in the filtering mechanism; the filter mechanism is arranged, a moving plate capable of moving up and down in a first sliding groove in a cleaning frame and a second sliding groove in a driving frame is arranged in the filter mechanism, two filter plates are mounted on the moving plate, and when the moving plate moves, the positions of the two filter plates can be adjusted; one filter plate is mounted at the clamping frame on the air inlet frame, the other filter plate enters the cleaning frame at the upper end or the lower end, and the filter plates are cleaned regularly, so that the filter plates mounted on the clamping frame are kept in a relatively clean state, the air inlet state of the air inlet frame is ensured, and the safety performance in the low-voltage cabinet body is improved.

Description

Technical Field

[0001] The invention relates to the technical field of low-voltage cabinets, and in particular to a low-voltage cabinet with a safety protection function. Background Art

[0002] Low-voltage cabinet, also known as low-voltage distribution cabinet or low-voltage switch cabinet, refers to a complete set of electrical equipment with AC and DC voltage below 1000V, which can be used to distribute low-voltage electrical energy, control and protect low-voltage circuits, and ensure the safety and reliability of electrical systems.

[0003] Nowadays, when dissipating heat inside a low-voltage cabinet, the natural wind outside the cabinet can be used to exchange heat with the cabinet shell, or the electrical cabinet with a heat dissipation window can use the natural wind outside the cabinet and the air convection inside the cabinet to exchange heat, and the natural wind convection can be used to achieve heat exchange of equipment inside the cabinet. When the cabinet is intake, a filter plate can be used to filter the dust in the air. As more and more dust adheres to the filter plate, the air intake volume will be affected, causing the heat dissipation inside the cabinet to deteriorate and affecting the safety performance inside the cabinet. Summary of the invention

[0004] The purpose of the present invention is to provide a low-voltage cabinet with a safety protection function to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: A low-voltage cabinet with a safety protection function comprises a low-voltage cabinet body and an air inlet frame, wherein the air inlet frame is arranged on one side of the low-voltage cabinet body; A filter mechanism, the filter mechanism is arranged on one side of the air inlet frame, and the filter mechanism filters the incoming air through a movable plate and a filter plate therein; A cleaning mechanism, the cleaning mechanism is arranged on one side of the air inlet frame, and the cleaning mechanism cleans the filter plate through the air blowing frame and the water inlet frame therein; A protection mechanism; the protection mechanism is arranged inside the air inlet frame, and the protection mechanism stores heptafluoropropane through a gas tank therein; The filter mechanism comprises a movable plate, a mounting frame, a first gear, a second gear, a transmission disc, a transmission belt, a third gear, a movable groove, a movable frame, a sealing plate and a filter plate, the mounting frame is fixedly mounted at two ends of the movable plate, the first gear, the second gear and the third gear are rotatably mounted on one side of the inner wall of the mounting frame, the first gear is located above the second gear and the third gear, and the second gear and the third gear are both located at the bottom inside the mounting frame, the first gear is meshed with the third gear, the transmission disc is fixedly mounted on the outer wall of the mounting shaft at one end of the first gear and the second gear, the transmission belt is mounted on the mounting shaft at one end of the first gear and the second gear, the movable groove is opened on both sides of the movable plate, and the corresponding mounting frame is respectively connected with the inside of the movable groove on both sides of the movable plate, the movable frame is slidably mounted on the groove wall of the movable groove, the sealing plate is fixedly mounted on one side of the movable frame, two connecting grooves are opened on one side of the movable plate, and the filter plate is fixedly mounted on the groove wall of the connecting groove.

[0006] Optionally, the movable groove and the movable frame are rectangles with two opposite sides connected to each other, a plurality of movable holes are opened on one side of the movable frame, a plurality of movable columns are fixedly installed on one side of the movable groove wall, the movable columns are slidably installed on the inner walls of the corresponding movable holes on the corresponding movable frame, straight tooth plates are fixedly installed at both ends of the movable frame, the third gear and the second gear are meshed with the corresponding straight tooth plates on the corresponding movable frame, a first motor is fixedly installed on the inner wall of the mounting frame, and the first gear is fixedly installed on the output end of the first motor.

[0007] Optionally, guide rail grooves are provided on both sides of the movable plate, and a rack plate is fixedly mounted on one side of the movable plate.

[0008] Optionally, a driving frame is fixedly installed on one side of the air inlet frame, a driving motor is fixedly installed on one side of the inner wall of the driving frame, a driving gear is fixedly installed on the output end of the driving motor, a second sliding groove is opened at one end of the air inlet frame, one side of the driving gear extends into the inside of the second sliding groove, a plurality of sliding rails are fixedly installed on both sides of the groove wall of the second sliding groove, the movable plate is slidably installed on the corresponding sliding rails through the guide grooves on both sides thereof, the driving gear is meshed with the rack plate on one side of the movable plate, and a through air inlet opening is opened on one side of the driving frame.

[0009] Optionally, the cleaning mechanism includes two cleaning frames, several cylinders, a fixed groove, a first sliding groove, several connecting grooves, a blowing frame, a water inlet frame and a sealing groove, the two cleaning frames are fixedly installed at both ends of the driving frame, and the cleaning frame is fixedly installed on one side of the air inlet frame, the fixed groove and the first sliding groove are opened inside the cleaning frame, several connecting grooves are arranged between the fixed groove and the first sliding groove, the fixed groove and the first sliding groove are connected through the connecting groove, the blowing frame and the water inlet frame are slidably installed on the corresponding connecting groove walls, several cylinders are fixedly installed on one side of the fixed groove walls, the blowing frame and the water inlet frame are fixedly installed on the corresponding cylinder output ends, the sealing groove is opened on one side of the blowing frame and the water inlet frame, and the sealing groove is engaged with the corresponding sealing plate on the movable plate.

[0010] Optionally, a plurality of blowing ports are fixedly mounted on one side of the blowing frame, and a blowing pipe is fixedly mounted on one side of the blowing frame, and the blowing ports and the blowing pipe are both connected to the interior of the blowing frame.

[0011] Optionally, a mounting tube is fixedly installed on the inner wall of the water inlet frame, and a plurality of nozzles are threadedly installed on the outer wall of the mounting tube through a threaded interface, one end of the nozzle nozzle nozzle extends to the outside of one side of the water inlet frame, a water inlet pipe is fixedly installed on one side of the water inlet frame, one end of the water inlet pipe is connected to the mounting tube, and the other end of the water inlet pipe extends to the outside of the cleaning frame, and a drain pipe is fixedly installed on one side of the water inlet frame, and the other end of the drain pipe extends to the outside of the cleaning frame.

[0012] Optionally, an air outlet frame is fixedly installed on one side of the water inlet frame, a heat pump is fixedly installed on the bottom end of the inner wall of the air outlet frame, and the other end of the blowing pipe is connected to one end of the air outlet of the heat pump.

[0013] Optionally, the protective mechanism includes a snap-fit ​​frame, a fan, an air inlet frame, a gas tank and a connecting pipe, a slot is provided at the end of the air inlet frame that contacts the driving frame, the snap-fit ​​frame is fixedly mounted on the slot wall, the fan and the gas tank are fixedly mounted on the bottom end of the inner wall of the air inlet frame, one side of the air inlet frame is connected to the interior of the low-voltage cabinet body, the air inlet frame is fixedly mounted on the side of the inner wall of the air inlet frame adjacent to the low-voltage cabinet body, a solenoid valve is fixedly mounted on one end of the gas tank outlet, the connecting pipe is fixedly mounted on one end of the solenoid valve, and the other end of the connecting pipe is fixedly mounted on one end of the fan air inlet, one end of the snap-fit ​​frame is connected to one end of the fan air inlet through a pipe, and the air inlet frame is connected to one end of the fan air outlet through a pipe.

[0014] Optionally, one side of the locking frame is locked with the corresponding sealing plate, and a plurality of air outlets are provided on a side of the air inlet frame adjacent to the low-voltage cabinet body.

[0015] The present invention has at least the following beneficial effects: (1) This solution is provided with a filtering mechanism, wherein a movable plate is provided which can move up and down in a first sliding groove on a cleaning frame and a second sliding groove on a driving frame. Two filter plates are installed on the movable plate. When the movable plate moves, the positions of the two filter plates can be adjusted so that one of the filter plates is installed at a snap-fit ​​frame on the air inlet frame, and the other filter plate enters the cleaning frame at the upper end or the lower end. The filter plates are cleaned regularly so that the filter plates installed on the snap-fit ​​frame are kept in a relatively clean state, thereby ensuring the air inlet state of the air inlet frame and improving the safety performance inside the low-voltage cabinet. (2) In this solution, the filter plate to be cleaned is moved to the corresponding cleaning frame, and the air blowing frame and the water inlet frame extend out and are respectively located on both sides of the movable plate. The corresponding sealing plates on the movable plate extend out from both sides and are engaged in the sealing grooves on the air blowing frame and the water inlet frame to form a sealed cleaning chamber. After cleaning by spraying water with a nozzle and then drying by blowing hot air, the filter plate is more convenient to clean; (3) This solution sets up a drainage pipe, one end of which is connected to a pump body, so that the sewage after cleaning can be pumped out and discharged through the drainage pipe; (4) In this solution, when the temperature inside the low-pressure cabinet is seriously abnormal or a fire occurs, the solenoid valve is activated, and the heptafluoropropane in the gas tank is sprayed out and transported to the inside of the low-pressure cabinet through the fan. The heptafluoropropane is quickly converted into gas to cool the inside of the low-pressure cabinet, which can effectively protect the inside of the low-pressure cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 This is the installation diagram of the water inlet frame of the blowing frame shell of the present invention; Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle; Figure 4 It is a cross-sectional view of the present invention; Figure 5 Mobile board diagram for the present invention; Figure 6 This is an installation diagram of the first gear, the second gear and the third gear of the present invention; Figure 7 This is a water inlet block diagram of the present invention; Figure 8 It is the blowing frame diagram of the present invention; Fig. 9 This is the internal installation diagram of the air inlet frame of the present invention.

[0017] In the accompanying drawings, the components represented by the reference numerals are listed as follows: 1. Low-voltage cabinet body; 2. Air inlet frame; 201. Clamping frame; 202. Fan; 203. Air inlet frame; 204. Gas tank; 205. Connecting pipe; 3. Driving frame; 301. Driving gear; 302. Slide rail; 4. Moving plate; 401. Mounting frame; 402. First gear; 403. Second gear; 404. Transmission plate; 405. Transmission belt; 406. Third gear; 407. First motor; 408. Moving slot; 409. Moving column ; 410, movable frame; 411, sealing plate; 412, filter plate; 413, rack plate; 5, cleaning frame; 501, cylinder; 502, fixed groove; 503, first sliding groove; 504, connecting groove; 505, blowing frame; 506, blowing port; 507, blowing pipe; 508, water inlet frame; 509, mounting pipe; 510, water inlet pipe; 511, nozzle; 512, drain pipe; 513, sealing groove; 6, air outlet frame; 601, heat pump. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] See also Figure 1-Figure 9The present invention provides a low-voltage cabinet with a safety protection function, comprising a low-voltage cabinet body 1 and an air inlet frame 2, wherein the air inlet frame 2 is arranged on one side of the low-voltage cabinet body 1; a filtering mechanism, wherein the filtering mechanism is arranged on one side of the air inlet frame 2, and the filtering mechanism filters the incoming air through a movable plate 4 and a filter plate 412 therein; a cleaning mechanism, wherein the cleaning mechanism is arranged on one side of the air inlet frame 2, and the cleaning mechanism cleans the filter plate 412 through a blowing frame 505 and a water inlet frame 508 therein; a protective mechanism; the protective mechanism is arranged inside the air inlet frame 2, and the protective mechanism stores heptafluoropropane through a gas tank 204 therein; the filtering mechanism comprises a movable plate 4 , mounting frame 401, first gear 402, second gear 403, transmission plate 404, transmission belt 405, third gear 406, moving groove 408, moving frame 410, sealing plate 411 and filter plate 412, mounting frame 401 is fixedly mounted on both ends of moving plate 4, first gear 402, second gear 403 and third gear 406 are rotatably mounted on one side of the inner wall of mounting frame 401, first gear 402 is located above second gear 403 and third gear 406, and second gear 403 and third gear 406 are both located at the bottom of mounting frame 401, first gear 402 and third gear 406 are fixedly mounted on both ends of moving plate 412 ... 6 are meshed, the transmission disc 404 is fixedly mounted on the outer wall of the mounting shaft at one end of the first gear 402 and the second gear 403, the transmission belt 405 is mounted on the mounting shaft at one end of the first gear 402 and the second gear 403, the moving groove 408 is opened on both sides of the moving plate 4, the corresponding mounting frame 401 is respectively connected with the inside of the moving groove 408 on both sides of the moving plate 4, the moving frame 410 is slidably mounted on the groove wall of the moving groove 408, the sealing plate 411 is fixedly mounted on one side of the moving frame 410, two connecting grooves are opened on one side of the moving plate 4, the filter plate 412 is fixedly mounted on the groove wall of the connecting groove, and a filtering mechanism is set, wherein a filter plate 412 is fixedly mounted on the wall of the connecting groove. A movable plate 4 is provided which can move up and down in the first sliding groove 503 on the cleaning frame 5 and the second sliding groove on the driving frame 3. Two filter plates 412 are installed on the movable plate 4. When the movable plate 4 moves, the positions of the two filter plates 412 can be adjusted so that one of the filter plates 412 is installed at the snap-fit ​​frame 201 on the air inlet frame 2, and the other filter plate 412 enters the cleaning frame 5 at the upper end or the lower end. The filter plate 412 is cleaned regularly so that the filter plate 412 installed on the snap-fit ​​frame 201 is kept in a relatively clean state, thereby ensuring the air intake state of the air inlet frame 2 and improving the safety performance inside the low-voltage cabinet body 1.

[0020] In this example, the first sliding grooves 503 on the cleaning frame 5 at the upper and lower ends and the second sliding grooves on the driving frame 3 are vertically connected to form a complete cavity.

[0021] In some embodiments, see Figure 1 , Figure 2 , Figure 5 , Figure 6The moving groove 408 and the moving frame 410 are two rectangles with two opposite sides connected. A plurality of moving holes are opened on one side of the moving frame 410. A plurality of moving columns 409 are fixedly installed on one side of the groove wall of the moving groove 408. The moving columns 409 are slidably installed on the inner walls of the corresponding moving holes on the corresponding moving frame 410. Straight tooth plates are fixedly installed at both ends of the moving frame 410. The third gear 406 and the second gear 403 are meshed with the corresponding straight tooth plates on the corresponding moving frame 410. The inner wall of the mounting frame 401 is fixedly installed with a first motor 407. A gear 402 is fixedly installed at the output end of the first motor 407, guide rail grooves are opened on both sides of the movable plate 4, a rack plate 413 is fixedly installed on one side of the movable plate 4, a driving frame 3 is fixedly installed on one side of the air inlet frame 2, a driving motor is fixedly installed on one side of the inner wall of the driving frame 3, a driving gear 301 is fixedly installed on the output end of the driving motor, a second sliding groove is opened at one end of the air inlet frame 2, one side of the driving gear 301 extends to the inside of the second sliding groove, a plurality of slide rails 302 are fixedly installed on both sides of the second sliding groove wall, and the movable plate 4 passes through the two sides thereof. The guide groove on the side is slidably installed on the corresponding slide rail 302, the driving gear 301 is meshed with the rack plate 413 on one side of the moving plate 4, and a penetrating air inlet opening is opened on one side of the driving frame 3; the first motor 407 is started to drive the first gear 402 to rotate, and the first gear 402 drives the third gear 406 to rotate, and when the first gear 402 rotates, it drives the second gear 403 to rotate through the transmission belt 405 and the second gear 403, so that the second gear 403 and the third gear 406 rotate in opposite directions. The second gear 403 and the third gear 406 mesh with the spur plates on the corresponding movable frames 410, so that the movable frames 410 on both sides of the movable plate 4 move synchronously in opposite directions. The movable frames 410 drive the sealing plates 411 to move, so that the sealing plates 411 are engaged in the engaging frame 201 or the corresponding sealing grooves 513. The first motor 407 is started to drive the movable frames 410 to move through the transmission at both ends of the movable frames 410. The movable frames 410 are limited by setting the movable columns 409, so that the movement of the movable frames 410 is more stable.

[0022] In this example, a slide rail 302 is provided for mounting the movable plate 4 , and the movable plate 4 is limited so that the movable plate 4 can move up and down along the slide rail 302 .

[0023] In this example, the driving motor is started to drive the driving gear 301 to rotate, and the driving gear 301 is meshed with the rack plate 413 on one side of the moving plate 4 to drive the moving plate 4 to move up and down.

[0024] In some embodiments, see Figure 2 , Figure 7 , Figure 8The cleaning mechanism includes two cleaning frames 5, a plurality of cylinders 501, a fixed groove 502, a first sliding groove 503, a plurality of connecting grooves 504, a blowing frame 505, a water inlet frame 508 and a sealing groove 513. The two cleaning frames 5 are fixedly installed at both ends of the driving frame 3, and the cleaning frame 5 is fixedly installed on one side of the air inlet frame 2. The fixed groove 502 and the first sliding groove 503 are opened inside the cleaning frame 5. A plurality of connecting grooves 504 are arranged between the fixed groove 502 and the first sliding groove 503. The fixed groove 502 and the first sliding groove 503 are connected through the connecting groove 504. The blowing frame 505 and the water inlet frame 508 are slidably installed on the groove wall of the corresponding connecting groove 504. A plurality of cylinders 501 are fixedly installed on one side of the groove wall of the fixed groove 502. The frame 505 and the water inlet frame 508 are fixedly installed on the output end of the corresponding cylinder 501, and the sealing groove 513 is opened on one side of the blowing frame 505 and the water inlet frame 508, and the sealing groove 513 is engaged with the corresponding sealing plate 411 on the movable plate 4; the cylinder 501 is started to drive the blowing frame 505 and the water inlet frame 508 to move, and the filter plate 412 to be cleaned moves to the corresponding cleaning frame 5, and the blowing frame 505 and the water inlet frame 508 extend out and are respectively located on both sides of the movable plate 4, and the corresponding sealing plates 411 on the movable plate 4 extend out from both sides and are engaged in the sealing grooves 513 on the blowing frame 505 and the water inlet frame 508, forming a sealed cleaning cavity, which is cleaned by spraying water with the nozzle 511 and then dried by blowing hot air, so that it is more convenient to clean the filter plate 412.

[0025] In some embodiments, see Figure 4 A plurality of blowing ports 506 are fixedly installed on one side of the blowing frame 505, a blowing pipe 507 is fixedly installed on one side of the blowing frame 505, the blowing ports 506 and the blowing pipe 507 are both connected to the inside of the blowing frame 505, a mounting pipe 509 is fixedly installed on the inner wall of the water inlet frame 508, a plurality of nozzles 511 are threadedly installed on the outer wall of the mounting pipe 509 through a threaded interface, one end of the nozzle 511 extends to the outside of one side of the water inlet frame 508, a water inlet pipe 510 is fixedly installed on one side of the water inlet frame 508, one end of the water inlet pipe 510 is connected to the mounting pipe 509, and the other end of the water inlet pipe 510 extends to the outside of the cleaning frame 5, a drain pipe 512 is fixedly installed on one side of the water inlet frame 508, and a drain pipe 512 is fixedly installed on one side of the water inlet frame 508. The other end of the water pipe 512 extends to the outside of the cleaning frame 5, and an air outlet frame 6 is fixedly installed on one side of the water inlet frame 508. A heat pump 601 is fixedly installed on the bottom end of the inner wall of the air outlet frame 6, and the other end of the blowing pipe 507 is connected to one end of the air outlet of the heat pump 601; the heat pump 601 is a heat pump 601 in the prior art, and hot air is blown out by the heat pump 601, and then transported to the blowing frame 505 through the blowing pipe 507 and blown out from the blowing port 506 to dry the filter plate 412. One end of the water inlet pipe 510 is connected to the water pump, and the water pump is connected to the water tank through a pipeline to provide a water source for cleaning. One end of the drain pipe 512 is connected to the pump body, which is convenient for the sewage after cleaning to be pumped out and discharged through the drain pipe 512.

[0026] For further information, please refer again to Fig. 9 The protective mechanism includes a snap-fit ​​frame 201, a fan 202, an air inlet frame 203, a gas tank 204 and a connecting pipe 205. A slot is provided at one end of the air inlet frame 2 that contacts the driving frame 3. The snap-fit ​​frame 201 is fixedly installed on the slot wall. The fan 202 and the gas tank 204 are fixedly installed on the bottom end of the inner wall of the air inlet frame 2. One side of the air inlet frame 2 is connected to the inside of the low-voltage cabinet body 1. The air inlet frame 203 is fixedly installed on the side of the inner wall of the air inlet frame 2 adjacent to the low-voltage cabinet body 1. A solenoid valve is fixedly installed at one end of the outlet of the gas tank 204. The connecting pipe 205 is fixedly installed at one end of the solenoid valve. The other end of the connecting pipe 205 is fixedly installed at one end of the air inlet of the fan 202. One end of the snap-fit ​​frame 201 is connected to one end of the air inlet of the fan 202 through a pipeline. The air inlet frame 203 is connected to one end of the air outlet of the fan 202 through a pipeline. The snap-fit ​​frame 201 is connected to one end of the air inlet of the fan 202 through a pipeline. The side is engaged with the corresponding sealing plate 411, and a plurality of air outlets are provided on the side of the air inlet frame 203 adjacent to the low-pressure cabinet body 1; the engaging frame 201 is used to connect the filter plate 412 and the air inlet of the air inlet frame 2; the fan 202 is provided to supply air to the interior of the low-pressure cabinet body 1, and a plurality of evenly arranged rectangular frames are provided on the upper end of the air inlet frame 203, which are used to evenly supply air to the interior of the low-pressure cabinet body 1. There is heptafluoropropane inside the gas tank 204, and the heptafluoropropane is stored in the gas tank 204 in a liquid state. When the temperature inside the low-pressure cabinet body 1 is seriously abnormal or a fire occurs, the solenoid valve is started, and the heptafluoropropane in the gas tank 204 is sprayed out and transported to the interior of the low-pressure cabinet body 1 through the fan 202. The heptafluoropropane is quickly converted into gas to cool the interior of the low-pressure cabinet body 1, which can well protect the interior of the low-pressure cabinet.

[0027] In this example, temperature sensors are arranged at multiple points inside the low-voltage cabinet body 1 to monitor the temperature inside the low-voltage cabinet body 1 .

[0028] In this example, the first motor 407 and the driving motor may be servo motors.

[0029] In this example, a solenoid valve can also be provided at the pipe connecting the snap-fit ​​frame 201 and the fan 202. When a fire occurs inside the low-voltage cabinet 1, the solenoid valve at the pipe connecting the snap-fit ​​frame 201 and the fan 202 can be closed to reduce the entry of oxygen.

[0030] In specific application, the filtering mechanism includes a movable plate 4, a mounting frame 401, a gear set (a first gear 402, a second gear 403, and a third gear 406), a transmission assembly (a transmission disc 404, a transmission belt 405), a movable groove 408, a movable frame 410, a sealing plate 411, and a filter plate 412. The first motor 407 drives the first gear 402 to rotate, and the transmission belt 405 drives the second gear 403 to rotate, so that the second gear 403 and the third gear 406 rotate in the opposite direction, thereby driving the movable frames 410 on both sides to move in the opposite direction synchronously. This not only realizes the position adjustment of the filter plate 412, but also ensures that the sealing plate 411 can be accurately engaged in the engaging frame 201 or the sealing groove 513 to form an effective sealing environment.

[0031] The cleaning mechanism is composed of two cleaning frames 5, several cylinders 501, a fixed slot 502, a first sliding slot 503, a connecting slot 504, a blowing frame 505, a water inlet frame 508, a sealing slot 513, etc. When the filter plate 412 needs to be cleaned, the cylinder 501 pushes the blowing frame 505 and the water inlet frame 508 to the corresponding position to form a closed cleaning chamber. Then, the nozzle 511 starts to spray water to clean the filter plate 412, and then the heat pump 601 starts and delivers hot air to the blowing port 506 through the blowing pipe 507 to dry the filter plate 412, completing the entire cleaning process.

[0032] The protective mechanism is composed of: a snap-fit ​​frame 201, a fan 202, an air inlet frame 203, a gas tank 204 storing HFC-227ea and a connecting pipe 205. Once the temperature sensor in the low-pressure cabinet detects abnormally high temperature or fire, the solenoid valve opens to allow the HFC-227ea gas in the gas tank 204 to be released and sent into the low-pressure cabinet through the fan 202, which plays a role in cooling and extinguishing the fire. In addition, in an emergency, the solenoid valve between the snap-fit ​​frame 201 and the fan 202 can also be closed to reduce the oxygen supply and suppress the spread of the fire.

[0033] Under normal circumstances, the filtering mechanism works continuously to ensure good air quality entering the low-pressure cabinet; at the same time, the protection mechanism is on standby, ready to respond to possible dangerous situations at any time. According to the preset time interval or actual needs, the cleaning mechanism is started to clean the filter plate 412 to maintain its efficient working performance. When the monitoring system detects a potential threat, the protection mechanism is immediately activated to use HFC-227ea to quickly reduce the temperature and extinguish the flame to protect the equipment from damage.

[0034] Working principle: when cleaning the filter plate 412, the filter plate 412 to be cleaned is moved to the corresponding cleaning frame 5, the blowing frame 505 and the water inlet frame 508 are extended and located on both sides of the movable plate 4, respectively, the first motor 407 is started to drive the first gear 402 to rotate, the first gear 402 drives the third gear 406 to rotate, and when the first gear 402 rotates, the second gear 403 is driven to rotate through the transmission belt 405 and the second gear 403, so that the movable frames 410 on both sides of the movable plate 4 move synchronously in the opposite direction, the movable frame 410 drives the sealing plate 411 to move, so that the sealing plate 411 is engaged in the engaging frame 201 or the corresponding sealing groove 513, and forms a sealed cleaning chamber with the blowing frame 505 and the water inlet frame 508, and is cleaned by spraying water through the nozzle 511 and then dried by blowing hot air.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0036] Although 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A low-voltage cabinet with safety protection function, characterized in that: include: A low-voltage cabinet body (1) and an air inlet frame (2), wherein the air inlet frame (2) is arranged on one side of the low-voltage cabinet body (1); A filtering mechanism, the filtering mechanism being arranged on one side of the air inlet frame (2), the filtering mechanism filtering the incoming air through the movable plate (4) and the filter plate (412) therein; A cleaning mechanism, the cleaning mechanism being arranged on one side of the air inlet frame (2), the cleaning mechanism cleaning the filter plate (412) through the air blowing frame (505) and the water inlet frame (508) therein; A protection mechanism; the protection mechanism is arranged inside the air inlet frame (2), and the protection mechanism stores heptafluoropropane through a gas tank (204) therein; The filtering mechanism comprises a movable plate (4), a mounting frame (401), a first gear (402), a second gear (403), a transmission disc (404), a transmission belt (405), a third gear (406), a movable groove (408), a movable frame (410), a sealing plate (411) and a filter plate (412); the mounting frame (401) is fixedly mounted on both ends of the movable plate (4); the first gear (402), the second gear (403) and the third gear (406) are rotatably mounted on one side of the inner wall of the mounting frame (401); the first gear (402) is located above the second gear (403) and the third gear (406); and the second gear (403) and the third gear (406) are both located at the bottom of the mounting frame (401); and the first gear (402) is located above the second gear (403) and the third gear (406). 02) is meshed with the third gear (406), the transmission plate (404) is fixedly mounted on the outer wall of the mounting shaft at one end of the first gear (402) and the second gear (403), the transmission belt (405) is mounted on the mounting shaft at one end of the first gear (402) and the second gear (403), the movable groove (408) is opened on both sides of the movable plate (4), and the corresponding mounting frame (401) is respectively connected with the inside of the movable groove (408) on both sides of the movable plate (4), the movable frame (410) is slidably mounted on the groove wall of the movable groove (408), the sealing plate (411) is fixedly mounted on one side of the movable frame (410), two connecting grooves are opened on one side of the movable plate (4), and the filter plate (412) is fixedly mounted on the groove wall of the connecting groove.

2. A low-voltage cabinet with safety protection function according to claim 1, characterized in that: The moving groove (408) and the moving frame (410) are two rectangles with two opposite sides connected. A plurality of moving holes are opened on one side of the moving frame (410). A plurality of moving columns (409) are fixedly installed on one side of the groove wall of the moving groove (408). The moving columns (409) are slidably installed on the inner walls of the corresponding moving holes on the corresponding moving frame (410). Straight tooth plates are fixedly installed at both ends of the moving frame (410). The third gear (406) and the second gear (403) are meshed with the corresponding straight tooth plates on the corresponding moving frame (410). A first motor (407) is fixedly installed on the inner wall of the installation frame (401), and the first gear (402) is fixedly installed on the output end of the first motor (407).

3. The low-voltage cabinet with safety protection function according to claim 1 is characterized in that: Guide rail grooves are provided on both sides of the movable plate (4), and a rack plate (413) is fixedly mounted on one side of the movable plate (4).

4. The low-voltage cabinet with safety protection function according to claim 3 is characterized in that: A driving frame (3) is fixedly mounted on one side of the air inlet frame (2), a driving motor is fixedly mounted on one side of the inner wall of the driving frame (3), a driving gear (301) is fixedly mounted on the output end of the driving motor, a second sliding groove is opened at one end of the air inlet frame (2), one side of the driving gear (301) extends into the interior of the second sliding groove, a plurality of sliding rails (302) are fixedly mounted on both sides of the groove wall of the second sliding groove, the movable plate (4) is slidably mounted on the corresponding sliding rails (302) through the guide grooves on both sides thereof, the driving gear (301) is meshed with a rack plate (413) on one side of the movable plate (4), and a through air inlet opening is opened on one side of the driving frame (3).

5. The low-voltage cabinet with safety protection function according to claim 4 is characterized in that: The cleaning mechanism comprises two cleaning frames (5), a plurality of cylinders (501), a fixed groove (502), a first sliding groove (503), a plurality of connecting grooves (504), an air blowing frame (505), a water inlet frame (508) and a sealing groove (513), wherein the two cleaning frames (5) are fixedly mounted at both ends of the driving frame (3), and the cleaning frame (5) is fixedly mounted on one side of the air inlet frame (2), the fixed groove (502) and the first sliding groove (503) are provided inside the cleaning frames (5), the plurality of connecting grooves (504) are provided between the fixed groove (502) and the first sliding groove (503), and the fixed The fixed groove (502) and the first sliding groove (503) are connected via the connecting groove (504); the blowing frame (505) and the water inlet frame (508) are slidably mounted on the groove wall corresponding to the connecting groove (504); a plurality of cylinders (501) are fixedly mounted on one side of the groove wall of the fixed groove (502); the blowing frame (505) and the water inlet frame (508) are fixedly mounted on the output ends of the corresponding cylinders (501); the sealing groove (513) is provided on one side of the blowing frame (505) and the water inlet frame (508); and the sealing groove (513) is engaged with the corresponding sealing plate (411) on the movable plate (4).

6. A low voltage cabinet with safety protection function according to claim 5, characterized in that: A plurality of blowing ports (506) are fixedly mounted on one side of the blowing frame (505), and a blowing pipe (507) is fixedly mounted on one side of the blowing frame (505); the blowing ports (506) and the blowing pipe (507) are both connected to the interior of the blowing frame (505).

7. The low-voltage cabinet with safety protection function according to claim 6 is characterized in that: A mounting pipe (509) is fixedly mounted on the inner wall of the water inlet frame (508); a plurality of nozzles (511) are threadedly mounted on the outer wall of the mounting pipe (509) via a threaded interface; one end of a nozzle of the nozzle (511) extends to the outside of one side of the water inlet frame (508); a water inlet pipe (510) is fixedly mounted on one side of the water inlet frame (508); one end of the water inlet pipe (510) is connected to the mounting pipe (509); the other end of the water inlet pipe (510) extends to the outside of the cleaning frame (5); a drainage pipe (512) is fixedly mounted on one side of the water inlet frame (508); the other end of the drainage pipe (512) extends to the outside of the cleaning frame (5).

8. The low-voltage cabinet with safety protection function according to claim 7 is characterized in that: An air outlet frame (6) is fixedly mounted on one side of the water inlet frame (508), a heat pump (601) is fixedly mounted on the bottom end of the inner wall of the air outlet frame (6), and the other end of the air blowing pipe (507) is connected to one end of the air outlet of the heat pump (601).

9. The low-voltage cabinet with safety protection function according to claim 4 is characterized in that: The protective mechanism comprises a snap-fit ​​frame (201), a fan (202), an air inlet frame (203), a gas tank (204) and a connecting pipe (205); an end of the air inlet frame (2) in contact with the driving frame (3) is provided with a notch; the snap-fit ​​frame (201) is fixedly mounted on the notch wall; the fan (202) and the gas tank (204) are fixedly mounted on the bottom end of the inner wall of the air inlet frame (2); one side of the air inlet frame (2) is connected to the inside of the low-voltage cabinet body (1); the air inlet frame (203) is fixedly mounted on the inner wall of the low-voltage cabinet body (1); Installed on a side of the inner wall of the air inlet frame (2) adjacent to the low-voltage cabinet body (1), a solenoid valve is fixedly installed at one end of the outlet of the gas tank (204), the connecting pipe (205) is fixedly installed at one end of the solenoid valve, the other end of the connecting pipe (205) is fixedly installed at one end of the air inlet of the fan (202), one end of the locking frame (201) is connected to one end of the air inlet of the fan (202) through a pipeline, and the air inlet frame (203) is connected to one end of the air outlet of the fan (202) through a pipeline.

10. The low-voltage cabinet with safety protection function according to claim 9, characterized in that: One side of the locking frame (201) is locked with the corresponding sealing plate (411), and a plurality of air outlets are provided on a side of the air inlet frame (203) adjacent to the low-voltage cabinet body (1).

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