Secondary fuse ring box with air pressure indication and tripping protection function

Abstract

The application relates to the field of power distribution equipment, in particular to a primary and secondary fusion ring network box with air pressure indication and tripping protection functions, which comprises a box body, a heat dissipation device and electrical equipment, the box body is provided with a mounting cavity, the heat dissipation device comprises a heat dissipation piston, a reciprocating screw rod, a one-way valve I and a one-way valve II, a heat dissipation flow channel is arranged in the box body, the reciprocating screw rod is rotationally connected to the inner wall of the heat dissipation flow channel, the heat dissipation piston is screwedly connected to the outer wall of the reciprocating screw rod, the outer wall of the box body is provided with an air outlet hole, the air outlet hole is communicated with the heat dissipation flow channel, the one-way valve I is connected to the inner wall of the air outlet hole, the inner wall of the mounting cavity is provided with an air inlet hole, the air inlet hole is communicated with the heat dissipation flow channel, and the one-way valve II is connected to the inner wall of the air inlet hole. In the application, the one-way valve I, the one-way valve II, the heat dissipation piston and the reciprocating screw rod are arranged, the cooling of the electrical equipment is realized, the electrical equipment is not prone to damage caused by long-time operation in a high-temperature state, and the normal work of the electrical equipment in the primary and secondary fusion ring network box is ensured.

Description

Technical Field

[0001] The present application relates to the field of electric power distribution equipment, and in particular to a primary-secondary fusion ring network box with air pressure indication and trip protection functions. Background Art

[0002] The primary and secondary integrated ring network box integrates primary equipment, high-precision sensors and secondary terminal equipment to form an integrated device to realize multiple functions such as power distribution, protection, control and measurement of the power system.

[0003] The electrical equipment inside the primary and secondary fusion ring network box will convert part of the electrical energy into heat energy during operation, and the heat dissipation efficiency of the heat dissipation holes on the primary and secondary fusion ring network box is low, causing the electrical equipment inside the primary and secondary fusion ring network box to operate in a high temperature state for a long time and be damaged, thereby affecting the normal operation of the electrical equipment inside the primary and secondary fusion ring network box. Summary of the Invention

[0004] In order to improve the problem of low heat dissipation efficiency of the heat dissipation holes in the primary and secondary fused ring network box, the present application provides a primary and secondary fused ring network box with air pressure indication and tripping protection functions.

[0005] This application provides a primary-secondary integrated ring network box with air pressure indication and trip protection functions, which adopts the following technical solutions:

[0006] The heat dissipation device is a heat dissipation device, a heat dissipation device being installed in an off-load direction, and a heat dissipation valve being installed in an off-load direction.

[0007] By adopting the above technical solution, the heat dissipation channel surrounds the installation cavity. When the electrical equipment in the installation cavity generates heat energy during operation, the reciprocating screw is driven to rotate, driving the heat dissipation piston to slide along the axis of the reciprocating screw on the inner wall of the heat dissipation channel. When the heat dissipation piston is away from the one-way valve 1, the air pressure in the heat dissipation channel is reduced, driving the air in the installation cavity to pass through the one-way valve 2 and the air inlet in turn and enter the heat dissipation channel, thereby accelerating the air flow in the installation cavity, causing the air to exchange heat with the electrical equipment in the installation cavity, thereby achieving cooling of the electrical equipment, making it less likely that the electrical equipment will be damaged by running at high temperature for a long time, thereby ensuring the normal operation of the electrical equipment in the primary and secondary fusion ring network box; when the heat dissipation piston approaches the one-way valve 1, the air pressure in the heat dissipation channel increases, and the air in the heat dissipation channel passes through the one-way valve 1 and the air outlet in turn and is discharged to the outside world, thereby achieving the discharge of the air in the heat dissipation channel, ensuring the air flow in the installation cavity, thereby improving the service life of the primary and secondary fusion ring network box with air pressure indication and tripping protection functions.

[0008] Optionally, the heat dissipation device also includes an air supply component, which includes a fan and a filter. The fan is installed on the outer wall of the box, and the air inlet end of the fan faces the installation cavity. The filter is installed on the outer wall of the box, and the filter is used to discharge the air in the installation cavity.

[0009] By adopting the above technical solution, the fan is installed on the outer wall of the box, and the fan drives the outside air into the installation cavity to impact the electrical equipment. The air and the electrical equipment are fully in contact and heat exchange is carried out to achieve cooling of the electrical equipment; at the same time, the air in the installation cavity is discharged through the filter, so that the air pressure in the installation cavity is not easy to be too high, thereby ensuring the stability of the operation of the electrical equipment in the installation cavity.

[0010] Optionally, the heat dissipation device also includes a transmission assembly, which includes a transmission impeller, two synchronous wheels and a synchronous belt used in conjunction with the synchronous wheels. The transmission impeller is rotatably connected to the outer wall of the box body, and the transmission impeller blades face the air inlet end of the fan. The axis of the transmission impeller and the axis of the reciprocating screw are parallel to each other. One of the synchronous wheels is coaxially connected to the transmission impeller shaft, and the other synchronous wheel is coaxially connected to the end of the reciprocating screw, and the synchronous belt is tensioned to connect the two synchronous wheels.

[0011] By adopting the above technical solution, when the fan is running, the fan drives outside air into the installation cavity to impact the electrical equipment, and the transmission impeller blades face the air inlet end of the fan. The air impacts the transmission impeller blades to drive the transmission impeller to rotate, and the synchronous belt is tightened to connect the two synchronous wheels, driving the reciprocating screw to rotate on the inner wall of the heat dissipation channel. There is no need for an external power device to drive the reciprocating screw to rotate, which reduces energy loss and thus embodies the concept of energy saving.

[0012] Optionally, the heat dissipation device also includes a filter assembly, which includes a filter frame and a filter plate. The filter frame is connected to the outer wall of the box body, and the filter frame surrounds the outer periphery of the fan. A groove for the filter plate to slide is provided on the surface of the filter frame. The filter plate shields the inner cavity of the filter frame. The outside air enters the air inlet end of the fan after being filtered through the filter plate or the filter frame.

[0013] By adopting the above technical solution, the inner cavity of the filter frame surrounds the outer periphery of the fan, and the filter plate shields the inner cavity of the filter frame. When the fan is running, the outside air is driven to pass through the filter plate or filter frame and then enter the air inlet end of the fan, thereby filtering the outside air and making it difficult for the air to carry impurities and interfere with the operation of the electrical equipment in the installation cavity, thereby ensuring the stability of the operation of the primary and secondary integrated ring network box with air pressure indication and tripping protection functions.

[0014] Optionally, the filter assembly further includes a support plate and an elastic member, the support plate being connected to the outer wall of the box body, one end of the elastic member in the elastic direction being connected to the support plate surface, and one end of the elastic member in the elastic direction being connected to the filter plate surface, the elastic member having elastic force driving the filter plate to slide toward the direction close to the filter frame, and the filter plate tends to shield the inner cavity of the filter frame.

[0015] By adopting the above technical solution, one end of the elastic member in the elastic direction is connected to the support plate surface, and the other end of the elastic member in the elastic direction is connected to the filter plate surface. The elastic member has elastic force to drive the filter plate to slide toward the direction close to the filter frame, and the filter plate shields the inner cavity of the filter frame, so that the filter plate is not easily offset on the inner wall of the slide groove, thereby improving the stability of the filter plate shielding the inner cavity of the filter frame.

[0016] Optionally, the air outlet is located between the filter frame and the support plate, and the filter assembly also includes electromagnet 1, electromagnet 2 and contact switch 1, wherein electromagnet 1 is connected to the board surface of the support plate facing the filter plate, and electromagnet 2 is connected to the board surface of the filter plate facing the support plate, and contact switch 1 is connected to the inner wall of the slide groove close to elastic member 1, and contact switch 1 is electrically connected to electromagnet 1; when the filter plate slides toward the support plate under the pressure of impurities, contact switch 1 abuts the filter plate and is turned on, and electromagnet 1 is energized and has magnetism, and electromagnet 1 and electromagnet 2 have opposite poles that attract each other, driving the filter plate to slide toward the support plate, and the air outlet faces the board surface of the filter plate.

[0017] By adopting the above technical solution, the filter plate surface can filter impurities in the air, and at the same time, the impurities adhere to the filter plate surface. The filter plate is affected by the pressure of the impurities and overcomes the elastic force of the elastic member 1 to slide toward the direction close to the support plate. The contact switch 1 abuts against the filter plate surface and is turned on. The electromagnet 1 is energized and has magnetism. The electromagnet 1 and the electromagnet have opposite poles and attract each other, driving the filter plate to slide toward the direction close to the support plate, and the air outlet faces the filter plate surface. The air in the heat dissipation flow channel passes through the one-way valve 1 and the air outlet in turn and is discharged to the outside world. The air discharged from the air outlet impacts the filter plate surface, driving the impurities away from the filter plate surface, thereby realizing directional cleaning of the filter plate surface.

[0018] Optionally, the filter plate includes a filter part one, a filter part two, a slide rail, a contact switch two and an elastic part two, the slide rail is connected to the surface of the filter part one, the filter part two is slidably connected to the surface of the slide rail, the filter part one shields the inner cavity of the filter frame, the contact switch two is connected to the surface of the slide rail away from the filter part one, the contact switch two is electrically connected to the electromagnet two, one end of the elastic part two in the elastic force direction is connected to the surface of the filter part two, and the other end of the elastic part two in the elastic force direction is connected to the surface of the filter part one, the elastic part two has an elastic force to drive the filter part two to slide in the direction away from the filter part one, the contact switch two abuts against the filter part two and is turned on, and the electromagnet two is energized and has a magnetic tendency.

[0019] The elastic force of the elastic member drives the filter part one to slide in the direction away from the support plate, and the filter part one shields the inner cavity of the filter frame, thereby realizing directional sliding of the filter plate.

[0020] Optionally, a scraper 1 is connected to the surface of the filter frame close to the contact switch 2, and the scraper 1 can scrape off impurities on the surface of the filter part 2.

[0021] By adopting the above technical solution, when the elastic force of the elastic member drives the filter part 1 to slide in the direction away from the support plate, it drives the filter part 2 to slide in the direction away from the filter frame, and the scraping end of the scraper 1 scrapes away the impurities on the surface of the filter part 2, thereby realizing directional cleaning of impurities on the surface of the filter part 2.

[0022] Optionally, a second scraper is connected to the plate surface of the filter frame facing the support plate, and the second scraper can scrape off impurities on the surface of the first filter part.

[0023] By adopting the above technical solution, when the opposite poles of electromagnet 1 and electromagnet 2 attract each other and drive the filter part 1 to slide toward the support plate, the scraping end of scraper 2 scrapes off the impurities on the surface of the filter part 1, thereby achieving preliminary cleaning of the impurities on the surface of the filter part 1.

[0024] Optionally, the electrical equipment is connected to an alarm component, which includes a gas pressure gauge, a buzzer, a controller and a circuit breaker. The buzzer is connected to the surface of the electrical equipment, and the buzzer is electrically connected to the controller. The gas pressure gauge is connected to the surface of the electrical equipment. The gas pressure gauge can detect the air pressure inside the electrical equipment. The controller is electrically connected to the gas pressure gauge. The gas pressure gauge sends a numerical value to the controller, and the controller compares the numerical value with a preset value. When the numerical value is lower than the preset value, the controller controls the buzzer to be energized and sound. The circuit breaker is connected to the surface of the electrical equipment, and the gas pressure gauge is electrically connected to the circuit breaker. When the numerical value detected by the gas pressure gauge is lower than the warning value, the gas pressure gauge contacts are closed and the circuit breaker trips.

[0025] By adopting the above technical solution, the gas pressure gauge can detect the air pressure inside the electrical equipment and send the value to the controller. The controller compares the value with the preset value. When the value is lower than the preset value, the controller controls the buzzer to be energized and sound, thereby alerting the user to promptly inspect the electrical equipment. When the air pressure inside the electrical equipment continues to decrease and the value detected by the gas pressure gauge is lower than the warning value, the gas pressure gauge contacts close, driving the circuit breaker to trip, causing the electrical equipment to stop running, thereby achieving the purpose of protecting the electrical equipment.

[0026] In summary, this application includes at least one of the following beneficial technical effects:

[0027] The setting of one-way valve 1, one-way valve 2, heat dissipation piston and reciprocating screw rod can realize cooling of electrical equipment, making it less likely for electrical equipment to be damaged by running at high temperature for a long time, thereby ensuring the normal operation of electrical equipment in the primary and secondary fusion ring network box;

[0028] The setting of fans and filters ensures that air and electrical equipment are in full contact and undergo heat exchange, thus achieving cooling of the electrical equipment;

[0029] The arrangement of the transmission impeller, synchronous wheel and synchronous belt eliminates the need for an external power device to drive the reciprocating screw to rotate, thereby reducing energy loss and embodying the concept of energy saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1It is a schematic diagram of the overall structure in the embodiment of the present application.

[0031] Figure 2 It is a cross-sectional view in an embodiment of the present application, mainly showing the heat dissipation device.

[0032] Figure 3 It is a partial structural diagram of an embodiment of the present application, mainly showing the warning component.

[0033] Explanation of the accompanying symbols: 1. Box body; 11. Mounting cavity; 12. Heat dissipation channel; 121. Heat dissipation section; 13. Air outlet; 14. Air inlet; 2. Heat dissipation device; 21. Heat dissipation piston; 22. Reciprocating screw; 23. One-way valve 1; 24. One-way valve 2; 25. Air supply assembly; 251. Fan; 252. Filter; 26. Transmission assembly; 261. Transmission impeller; 262. Synchronous wheel; 263. Synchronous belt; 27. Filter assembly; 271. Filter frame ;2711. Slide;272. Filter plate;2721. Filter part one;2722. Filter part two;2723. Slide rail;2724. Contact switch two;2725. Elastic part two;273. Support plate;274. Elastic part one;275. Electromagnet one;276. Electromagnet two;277. Contact switch one;3. Electrical equipment;4. Box door;51. Gas pressure gauge;52. Buzzer;53. Circuit breaker;6. Scraper one;7. Scraper two. DETAILED DESCRIPTION

[0034] The following is combined with Figures 1-3 This application is described in further detail.

[0035] The embodiment of the present application discloses a primary and secondary fusion ring network box with air pressure indication and trip protection functions. Figure 1 and Figure 2 The primary-secondary fusion ring network box with air pressure indication and tripping protection function includes a box body 1, a heat dissipation device 2 and multiple electrical equipment 3. The box body 1 has an installation cavity 11 for installing multiple electrical equipment 3. The arrangement direction of the electrical equipment 3 is parallel to the length direction of the box body 1. The box body 1 is rotatably connected to a box door 4 that closes the installation cavity 11. The rotation axis of the box door 4 and the height direction of the box body 1 are parallel to each other. The heat dissipation device 2 is installed on the box body 1. The heat dissipation device 2 can cool down the multiple electrical equipment 3 in the installation cavity 11, so that the electrical equipment 3 is not easily damaged by operation in a high temperature state, thereby ensuring the normal operation of the electrical equipment 3 in the primary-secondary fusion ring network box.

[0036] Reference Figure 3, the electrical equipment 3 is equipped with an alarm component, which can monitor the air pressure in the electrical equipment 3 in real time; the alarm component includes a gas pressure gauge 51, a buzzer 52, a controller and a circuit breaker 53, the buzzer 52 is installed on the surface of the electrical equipment 3, the buzzer 52 is electrically connected to the controller, the gas pressure gauge 51 is installed on the surface of the electrical equipment 3, the gas pressure gauge 51 can detect the air pressure in the electrical equipment 3, the controller is electrically connected to the gas pressure gauge 51, the gas pressure gauge 51 sends the value to the controller, the controller compares the value with the preset value, and when the value is lower than the preset value, the controller The controller drives the buzzer 52 to be energized and emit a sound, thereby alerting the user to promptly inspect the electrical equipment 3; the circuit breaker 53 is installed on the surface of the electrical equipment 3, and the gas pressure gauge 51 is electrically connected to the circuit breaker 53. When the air pressure in the electrical equipment 3 continues to decrease, the value detected by the gas pressure gauge 51 is lower than the warning value, the contacts of the gas pressure gauge 51 are closed, and the circuit breaker 53 trips and cuts off the power, thereby protecting the electrical equipment 3 and making it less likely for the electrical equipment 3 to be damaged due to operation under negative pressure, thereby extending the service life of the primary and secondary integrated ring network box with air pressure indication and tripping protection functions.

[0037] Reference Figure 2 , the heat dissipation device 2 includes a heat dissipation piston 21, a reciprocating screw 22, a one-way valve 1 23, a one-way valve 24, an air supply component 25, a transmission component 26 and a filter component 27. A heat dissipation channel 12 is opened in the box body 1, and the heat dissipation channel 12 surrounds the installation cavity 11. The reciprocating screw 22 is rotatably connected to the inner wall of the heat dissipation channel 12. The axis of the reciprocating screw 22 and the height direction of the box body 1 are parallel to each other. The material of the heat dissipation piston 21 can be rubber or silicone. In the embodiment of the present application, the material of the heat dissipation piston 21 is rubber, which has a certain deformation ability. The heat dissipation piston 21 is threadedly connected to the outer wall of the reciprocating screw 22. The heat dissipation piston 21 slides on the inner wall of the heat dissipation channel 12 along the axis of the reciprocating screw 22. The heat dissipation piston 21 divides the heat dissipation channel 12 into two heat dissipation sections 121. The number of the one-way valve 1 23 can be one or two. In the embodiment of the application, there are two one-way valves 23, and the one-way valves 23 correspond one-to-one to the heat dissipation sections 121. Two air outlet holes 13 are arranged on the side wall of the box body 1 at intervals. The axes of the air outlet holes 13 are parallel to the length direction of the box body 1. The air outlet holes 13 pass through the outer wall of the box body 1 along their own axes and are connected one-to-one to the inner cavity of the heat dissipation section 121. The one-way valve 23 is installed on the inner wall of the air outlet hole 13. The one-way valve 23 allows the air in the heat dissipation section 121 to be discharged from the air outlet hole 13. Two air inlet holes 14 are arranged on the inner wall of the installation cavity 11 at intervals. The axes of the air inlet holes 14 and the axes of the air outlet holes 13 are parallel to each other. The air inlet holes 14 pass through the inner wall of the installation cavity 11 along their own axes and are connected one-to-one to the inner cavity of the heat dissipation section 121. The one-way valve 24 is installed on the inner wall of the air inlet hole 14. The one-way valve 24 allows the air in the installation cavity 11 to enter the air inlet hole 14.

[0038] ReferenceFigure 2 When the reciprocating screw 22 rotates on the inner wall of the heat dissipation channel 12, it drives the heat dissipation piston 21 to slide on the inner wall of the heat dissipation channel 12 along the axis of the reciprocating screw 22. When the heat dissipation piston 21 slides toward one of the heat dissipation sections 121, the air pressure in the heat dissipation section 121 increases, driving the air in the heat dissipation section 121 to pass through the one-way valve 23 and the air outlet 13 in turn and be discharged to the outside; at the same time, the air pressure in the other heat dissipation section 121 decreases, driving the air in the installation cavity 11 to pass through the one-way valve 24 and the air inlet 14 in turn and enter the heat dissipation section 121, so that the air in the installation cavity 11 is in full contact with the electrical equipment 3 and heat exchange is carried out, thereby cooling the electrical equipment 3 and preventing the electrical equipment 3 from being damaged by running at high temperature for a long time, thereby ensuring the normal operation of the electrical equipment 3 in the primary and secondary fusion ring network box with air pressure indication and tripping protection functions.

[0039] Reference Figure 2 The air supply component 25 can drive external air to impact the electrical equipment 3 in the installation cavity 11. The air supply component 25 includes a fan 251 and a filter 252. The fan 251 is fixed to the side wall of the box body 1 by bolts. The fan 251 is located between the two air outlet holes. The air outlet end of the fan 251 faces the installation cavity 11. The fan 251 drives external air into the installation cavity 11 to impact the electrical equipment 3. The electrical equipment 3 is in full contact with the air and performs heat exchange, further improving the cooling efficiency of the electrical equipment 3; the side wall of the box body 1 is provided with an installation groove for installing the filter 252. The installation groove is located between the two air inlet holes 14. The installation groove penetrates the outer wall of the box body 1 along its own depth and is connected to the installation cavity 11. The air in the installation cavity 11 is filtered by the filter 252 and then discharged, so that the air pressure in the installation cavity 11 is not easy to exceed the standard atmospheric pressure, and external insects are not easy to enter the installation cavity 11 through the filter 252, thereby ensuring the stability of the operation of the electrical equipment 3.

[0040] Reference Figure 2 The transmission assembly 26 can convert the wind force of the fan 251 into power for the reciprocating screw 22. The transmission assembly 26 includes a transmission impeller 261, two synchronous wheels 262 and a synchronous belt 263 used in conjunction with the synchronous wheels 262. The transmission impeller 261 is rotatably connected to the side wall of the box body 1. The axis of the transmission impeller 261 and the axis of the reciprocating screw 22 are parallel to each other. The blades of the transmission impeller 261 face the air inlet end of the fan 251. One of the synchronous wheels 262 is coaxially fixed to the rotating shaft of the transmission impeller 261, and the other synchronous wheel 262 is coaxially fixed to the end of the reciprocating screw 22. The synchronous belt 263 is tensioned and connected to the two synchronous wheels 262.

[0041] Reference Figure 2When the fan 251 is running, it drives the outside air into the installation cavity 11 and impacts the electrical equipment 3. At the same time, the outside air impacts the blades of the transmission impeller 261 and drives the transmission impeller 261 to rotate around its own axis. The synchronous belt 263 is tightened to connect the two synchronous wheels 262, driving the reciprocating screw 22 to rotate around its own axis on the inner wall of the heat dissipation channel 12. No external power device is required to drive the reciprocating screw 22 to rotate, reducing energy loss, thereby embodying the concept of energy saving.

[0042] Reference Figure 2 271 , the filter assembly 27 can filter the outside air driven by the fan 251. The filter assembly 27 includes a filter frame 271, a filter plate 272, a support plate 273, an elastic member 274, an electromagnet 1 275, an electromagnet 276 and a contact switch 277. The filter frame 271 is fixed to the side wall of the box body 1 by welding. The filter frame 271 is located between the two air outlet holes 13, and the inner cavity of the filter frame 271 surrounds the outer peripheral surface of the fan 251. The surface of the filter frame 271 away from the box body 1 is provided with a slide groove 2711 for the filter plate 272 to slide. The sliding direction of the filter plate 272 is parallel to the axis of the reciprocating screw 22. The filter plate 272 can shield the inner cavity of the filter frame 271. The outside air passes through the plate surface of the filter plate 272 or the frame surface of the filter frame 271 and then enters the air inlet end of the fan 251 after being filtered, so that the outside air is not easy to carry impurities into the installation cavity 11, thereby ensuring the stability of the operation of the electrical equipment 3 in the installation cavity 11.

[0043] Reference Figure 2 The filter plate 272 includes a filter part 1 2721, a filter part 2722, a slide rail 2723, a contact switch 2724 and an elastic member 2725. The number of slide rails 2723 can be one or two. In the embodiment of the present application, the number of slide rails 2723 is two. The two slide rails 2723 are welded and fixed at both ends of the filter part 1 2721 in a one-to-one manner. The filter part 2722 is slidably connected to the end faces of the two slide rails 2723 that are opposite to each other. The sliding direction of the filter part 2722 is parallel to the axis of the reciprocating screw rod 22. The contact switch 2724 is installed on one of them. The sliding rail 2723 is away from the surface of the filter part 1 2721, and the elastic part 2 2725 can be a compression spring or a tension spring. In the embodiment of the present application, the elastic part 2725 is a compression spring with a certain deformation ability. One end of the elastic part 2725 in the elastic direction is fixed on the surface of the filter part 1 2721, and the other end of the elastic part 2725 in the elastic direction is fixed on the surface of the filter part 2 2722. The elastic part 2 2725 has the elastic force to drive the filter part 2 2722 to slide in the direction away from the filter part 1 2721, and the surface of the filter part 2 2722 tends to abut against the contact switch 2 2724.

[0044] Reference Figure 2The end of the support plate 273 is welded and fixed to the side wall of the box body 1, and the support plate 273 is located on the side of one of the air outlet holes 13 away from the filter frame 271. The elastic member 274 can be a compression spring or a tension spring. In the embodiment of the present application, the elastic member 274 is a compression spring with a certain deformation ability. One end of the elastic member 274 in the elastic direction is fixed to the board surface of the support plate 273, and the other end of the elastic member 274 in the elastic direction is fixed to the surface of the filter part 2721. The elastic member 274 has the elastic force to drive the filter part 2721 to slide toward the direction close to the filter frame 271, and the filter part 2721 tends to cover the inner cavity of the filter frame 271.

[0045] Reference Figure 2 , electromagnet 1 275 is mounted on the surface of the support plate 273 facing the filter part 1 2721, contact switch 1 277 is mounted on the inner wall of the slide groove 2711 close to the support plate 273, contact switch 1 277 is electrically connected to electromagnet 1 275, electromagnet 2 276 is mounted on the surface of the filter part 1 2721 facing the support plate 273, electromagnet 2 276 is electrically connected to contact switch 2 2724, contact switch 2 2724 abuts against the surface of the filter part 2 2722 and is turned on, electromagnet 2 276 is energized and has magnetic force; when outside air accumulates on the surface of the filter part 1 2721, the filter part 1 2721 is subjected to the pressure of impurities to overcome the elastic member 1 2 The filter unit 1 2721 is moved along the inner wall of the chute 2711 and moves toward the support plate 273 due to the elastic force of 74. The contact switch 1 277 abuts against the surface of the filter unit 1 2721 and is turned on. The electromagnet 1 275 is energized and has magnetic force. The electromagnet 1 275 and the electromagnet 2 276 attract each other with opposite poles, driving the filter unit 1 2721 to slide along the inner wall of the chute 2711 toward the support plate 273. The filter unit 2 2722 covers the inner cavity of the filter frame 271. At the same time, the air outlet 13 faces the plate surface of the filter unit 1 2721. The air discharged from the air outlet 13 impacts the plate surface of the filter unit 1 2721, driving impurities away from the plate surface of the filter unit 1 2721, thereby realizing directional cleaning of the plate surface of the filter unit 1 2721.

[0046] Reference Figure 2At the same time, when impurities in the air adhere to the surface of the filter part 2 2722, the filter part 2722 slides along the surface of the slide rail 2723 toward the filter part 1 2721 due to the pressure of the impurities, the abutment effect of the filter part 2722 on the contact switch 2 2724 disappears, the contact switch 2 2724 is disconnected, the electromagnet 2 276 is powered off and loses its magnetic force, the attraction between the opposite poles of the electromagnet 1 275 and the electromagnet 2 276 disappears, and the elastic force of the elastic member 1 274 drives the filter part 1 2721 to slide toward the filter frame 271, and the filter part 1 2721 shields the inner cavity of the filter frame 271. The filter part 1 2721 contacts the contact switch 1 27 The abutment effect of 7 disappears, the contact switch is disconnected, and the electromagnet 1 275 is powered off and loses its magnetic force; at the same time, it drives the filter part 2 2722 to slide in the direction away from the filter frame 271, and the air outlet 13 faces the plate surface of the filter part 2 2722. The air discharged from the air outlet 13 impacts the surface of the filter part 2 2722, driving impurities away from the surface of the filter part 2 2722, thereby achieving directional cleaning of the surface of the filter part 2 2722. The elastic force of the elastic part 2 2725 drives the filter part 2 2722 to slide in the direction close to the contact switch 2 2724. The contact switch 2 2724 abuts against the filter part 2 2722 and is turned on, and the electromagnet 2 276 is energized and has magnetic force.

[0047] Reference Figure 2 A scraper 6 is welded and fixed to the surface of the filter frame 271 near the contact switch 2724, and the scraping end of the scraper 6 faces the slide groove 2711. The scraping end of the scraper 6 can scrape off impurities on the surface of the filter part 2722, thereby achieving preliminary cleaning of the surface of the filter part 2722; a scraper 2 7 is welded and fixed to the surface of the filter frame 271 facing the support plate 273, and the scraping end of the scraper 2 7 faces the slide groove 2711. The scraping end of the scraper 2 7 can scrape off impurities on the surface of the filter part 1 2721, thereby achieving preliminary cleaning of the surface of the filter part 1 2721, thereby improving the stability of filtration of external air.

[0048] The implementation principle of the primary and secondary fusion ring network box with air pressure indication and tripping protection functions in the embodiment of the present application is as follows: the fan 251 is running, driving the outside air into the installation cavity 11 to impact the electrical equipment 3, and at the same time the outside air impacts the blades of the transmission impeller 261 and drives the transmission impeller 261 to rotate around its own axis, the synchronous belt 263 is tensioned to connect the two synchronous wheels 262, driving the reciprocating screw 22 to rotate around its own axis on the inner wall of the heat dissipation channel 12, and driving the heat dissipation piston 21 to slide on the inner wall of the heat dissipation channel 12 along the axis of the reciprocating screw 22. When the heat dissipation piston 21 slides toward one of the heat dissipation sections 121, the heat dissipation The air pressure in the hot section 121 increases, driving the air in the heat dissipation section 121 to pass through the one-way valve 23 and the air outlet 13 in turn and be discharged to the outside; at the same time, the air pressure in the other heat dissipation section 121 decreases, driving the air in the installation cavity 11 to pass through the one-way valve 24 and the air inlet 14 in turn and enter the heat dissipation section 121, so that the air in the installation cavity 11 is in full contact with the electrical equipment 3 and heat exchange is carried out, thereby cooling the electrical equipment 3 and preventing the electrical equipment 3 from being damaged by running at high temperature for a long time, thereby ensuring the normal operation of the electrical equipment 3 in the primary and secondary fusion ring network box with air pressure indication and tripping protection functions.

[0049] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. The primary and secondary fusion ring network box with air pressure indication and trip protection function is characterized by: The invention comprises a housing (1), a heat dissipation device (2) and an electrical device (3); the housing (1) has an installation cavity (11) for installing the electrical device (3); the heat dissipation device (2) comprises a heat dissipation piston (21), a reciprocating screw (22), a one-way valve (23) and a one-way valve (24); a heat dissipation channel (12) is provided in the housing (1); the heat dissipation channel (12) surrounds the installation cavity (11); the reciprocating screw (22) is rotatably connected to the inner wall of the heat dissipation channel (12); the heat dissipation piston (21) is threadedly connected to the outer wall of the reciprocating screw (22); the heat dissipation piston (21) slides on the inner wall of the heat dissipation channel (12) along the axis of the reciprocating screw (22); the outer wall of the housing (1) An air outlet (13) is provided on the wall, the air outlet (13) is connected to the heat dissipation channel (12), the one-way valve (23) is connected to the inner wall of the air outlet (13), the one-way valve (23) allows the air in the heat dissipation channel (12) to be discharged from the air outlet (13), an air inlet (14) is provided on the inner wall of the installation cavity (11), the air inlet (14) is connected to the heat dissipation channel (12), the one-way valve (24) is connected to the inner wall of the air inlet (14), the one-way valve (24) allows the air in the installation cavity (11) to enter the air inlet (14); the heat dissipation device (2) also includes an air supply component (25), the air supply component (25) includes a fan (251) and a filter (252 ), the fan (251) is installed on the outer wall of the box (1), the air inlet end of the fan (251) faces the installation cavity (11), the filter (252) is installed on the outer wall of the box (1), and the filter (252) is used to discharge the air in the installation cavity (11); the heat dissipation device (2) also includes a filter assembly (27), the filter assembly (27) includes a filter frame (271) and a filter plate (272), the filter frame (271) is connected to the outer wall of the box (1), the filter frame (271) surrounds the outer periphery of the fan (251), the surface of the filter frame (271) is provided with a slide groove (2711) for the filter plate (272) to slide, and the filter plate (272) shields the filter frame ( 271) inner cavity, outside air is filtered through the filter plate (272) or the filter frame (271) and then enters the air inlet end of the fan (251); the filter assembly (27) also includes a support plate (273) and an elastic member (274), the support plate (273) is connected to the outer wall of the box body (1), one end of the elastic member (274) in the elastic direction is connected to the board surface of the support plate (273), and one end of the elastic member (274) in the elastic direction is connected to the board surface of the filter plate (272), the elastic member (274) has elastic force to drive the filter plate (272) to slide in the direction close to the filter frame (271), and the filter plate (272) has a tendency to shield the inner cavity of the filter frame (271).

2. The primary and secondary fused ring network box with air pressure indication and trip protection functions according to claim 1 is characterized in that: The heat dissipation device (2) further comprises a transmission assembly (26), the transmission assembly (26) comprising a transmission impeller (261), two synchronous wheels (262) and a synchronous belt (263) used in conjunction with the synchronous wheels (262), the transmission impeller (261) being rotatably connected to the outer wall of the box body (1), the blades of the transmission impeller (261) facing the air inlet end of the fan (251), the axis of the transmission impeller (261) and the axis of the reciprocating screw (22) being parallel to each other, one of the synchronous wheels (262) being coaxially connected to the rotating shaft of the transmission impeller (261), the other synchronous wheel (262) being coaxially connected to the end of the reciprocating screw (22), and the synchronous belt (263) being tensioned to connect the two synchronous wheels (262).

3. The primary and secondary fused ring network box with air pressure indication and trip protection functions according to claim 1 is characterized in that: The air outlet (13) is located between the filter frame (271) and the support plate (273). The filter assembly (27) further includes an electromagnet (275), an electromagnet (276) and a contact switch (277). The electromagnet (275) is connected to the surface of the support plate (273) facing the filter plate (272). The electromagnet (276) is connected to the surface of the filter plate (272) facing the support plate (273). The contact switch (277) is connected to the inner portion of the slide groove (2711) near the elastic member (274). The contact switch 1 (277) is electrically connected to the electromagnet 1 (275); when the filter plate (272) slides toward the support plate (273) due to the pressure of impurities, the contact switch 1 (277) abuts against the filter plate (272) and is turned on, the electromagnet 1 (275) is energized and has magnetism, and the electromagnet 1 (275) and the electromagnet 2 (276) attract each other with opposite poles, driving the filter plate (272) to slide toward the support plate (273), and the air outlet (13) faces the plate surface of the filter plate (272).

4. The primary and secondary fused ring network box with air pressure indication and trip protection functions according to claim 3 is characterized by: The filter plate (272) includes a filter part 1 (2721), a filter part 2 (2722), a slide rail (2723), a contact switch 2 (2724) and an elastic member 2 (2725), wherein the slide rail (2723) is connected to the surface of the filter part 1 (2721), the filter part 2 (2722) is slidably connected to the surface of the slide rail (2723), the filter part 1 (2721) shields the inner cavity of the filter frame (271), the contact switch 2 (2724) is connected to the surface of the slide rail (2723) away from the filter part 1 (2721), and the contact switch The second (2724) is electrically connected to the second electromagnet (276), one end of the second elastic member (2725) in the elastic direction is connected to the surface of the second filter part (2722), and the other end of the second elastic member (2725) in the elastic direction is connected to the surface of the first filter part (2721). The second elastic member (2725) has an elastic force that drives the second filter part (2722) to slide in a direction away from the first filter part (2721), the second contact switch (2724) abuts against the second filter part (2722) and is turned on, and the second electromagnet (276) is energized and has a magnetic tendency.

5. The primary and secondary fused ring network box with air pressure indication and trip protection functions according to claim 4 is characterized in that: The surface of the filter frame (271) close to the second contact switch (2724) is connected to a scraper (6), and the scraper (6) can scrape off impurities on the surface of the second filter part (2722).

6. The primary and secondary fused ring network box with air pressure indication and trip protection functions according to claim 4 is characterized in that: The plate surface of the filter frame (271) facing the support plate (273) is connected to a second scraper (7), and the second scraper (7) can scrape off impurities on the surface of the first filter part (2721).

7. The primary and secondary fused ring network box with air pressure indication and trip protection functions according to claim 1 is characterized in that: The electrical device (3) is connected to a warning component, which includes a gas pressure gauge (51), a buzzer (52), a controller and a circuit breaker (53). The buzzer (52) is connected to the surface of the electrical device (3). The buzzer (52) is electrically connected to the controller. The gas pressure gauge (51) is connected to the surface of the electrical device (3). The gas pressure gauge (51) can detect the gas pressure in the electrical device (3). The controller is electrically connected to the gas pressure gauge (51). The gas pressure gauge (51) sends a value to the controller. The controller compares the value with a preset value. When the value is lower than the preset value, the controller controls the buzzer (52) to be energized and sound. The circuit breaker (53) is connected to the surface of the electrical device (3). The gas pressure gauge (51) is electrically connected to the circuit breaker (53). When the value detected by the gas pressure gauge (51) is lower than the warning value, the contacts of the gas pressure gauge (51) are closed and the circuit breaker (53) is tripped.

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