Primary and secondary fusion ring main unit with air pressure indication and trip protection functions

Abstract

The invention relates to the field of power distribution equipment, in particular to a primary and secondary fusion ring main unit with air pressure indication and trip 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, and a heat dissipation flow channel is formed in the box body. An air outlet hole is formed in the outer wall of the box body, the air outlet hole communicates with the heat dissipation flow channel, the first one-way valve is connected to the inner wall of the air outlet hole, an air inlet hole is formed in the inner wall of the mounting cavity, the air inlet hole communicates with the heat dissipation flow channel, and the second one-way valve is connected to the inner wall of the air inlet hole. Through the arrangement of the first one-way valve, the second one-way valve, the heat dissipation piston and the reciprocating lead screw, cooling of the electrical equipment is achieved, the electrical equipment is not prone to being damaged due to the fact that the electrical equipment runs in a high-temperature state for a long time, and therefore normal work of the electrical equipment in the primary and secondary fusion ring main unit is guaranteed.

Description

Technical Field

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

[0002] The primary and secondary integrated ring network box integrates the primary main 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 in the primary and secondary fusion ring network box to run in a high temperature state for a long time and be damaged, thus affecting the normal operation of the electrical equipment in 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 heat dissipation holes in a primary-secondary fused ring network box, the present application provides a primary-secondary fused ring network box with air pressure indication and tripping protection functions.

[0005] The present application provides a primary-secondary fusion ring network box with air pressure indication and trip protection functions, which adopts the following technical solution: The heat dissipation device is a heat dissipation device for dissipating the heat of the heat dissipation channel, and the heat dissipation device is connected to the heat dissipation channel by a threaded connection to the outer wall of the reciprocating screw rod. The heat dissipation piston is threadedly connected to the outer wall of the reciprocating screw rod, and the heat dissipation piston slides on the inner wall of the heat dissipation channel along the axis of the reciprocating screw rod. An air outlet is provided on the outer wall of the box body, and the air outlet is connected to the heat dissipation channel. The one-way valve one is connected to the inner wall of the air outlet hole, and the one-way valve one is used to discharge the air in the heat dissipation channel from the air outlet hole. An air inlet is provided on the inner wall of the installation cavity, and the air inlet is connected to the heat dissipation channel. The two-way valves are connected to the inner wall of the air inlet hole, and the two-way valves are used to supply the air in the installation cavity into the air inlet hole.

[0006] By adopting the above technical scheme, 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 on the inner wall of the heat dissipation channel along the axis of the reciprocating screw. 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 hole in turn and enter the heat dissipation channel, thereby accelerating the air flow in the installation cavity, allowing the air to exchange heat with the electrical equipment in the installation cavity, thereby cooling the electrical equipment, and preventing the electrical equipment from being damaged by operating 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 is close to the one-way valve 1, the air pressure in the heat dissipation channel is increased, 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, 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.

[0007] 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 body, and the air inlet end of the fan faces the installation cavity. The filter is installed on the outer wall of the box body, and the filter is used to discharge air in the installation cavity.

[0008] By adopting the above technical solution, the fan is installed on the outer wall of the box body. 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 performed 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.

[0009] 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 wheel, the transmission impeller is rotatably connected to the outer wall of the box body, the transmission impeller blades are facing the air inlet end of the fan, the transmission impeller axis and the reciprocating screw axis 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.

[0010] By adopting the above technical solution, when the fan is running, the fan drives the outside air into the installation cavity to impact the electrical equipment, 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, the synchronous belt is tensioned to connect the two synchronous wheels, and the reciprocating screw is driven 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 reflects the concept of energy saving.

[0011] 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 by the filter plate or the filter frame.

[0012] 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 the 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 fused ring network box with air pressure indication and tripping protection functions.

[0013] Optionally, the filter assembly also includes a support plate and an elastic member, the support plate is connected to the outer wall of the box body, one end of the elastic member in the elastic force direction is connected to the support plate surface, and one end of the elastic member in the elastic force 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 tends to cover the inner cavity of the filter frame.

[0014] 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.

[0015] 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, electromagnet 2 is connected to the board surface of the filter plate facing the support plate, 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 due to the pressure of impurities, contact switch 1 abuts against the filter plate and is turned on, and electromagnet 1 is energized and has magnetism, and electromagnet 1 and electromagnet 2 attract each other with opposite poles, driving the filter plate to slide toward the support plate, and the air outlet faces the surface of the filter plate.

[0016] By adopting the above technical scheme, the filter plate surface can filter impurities in the air, and at the same time, the impurities adhere to the filter plate surface, and the filter plate is affected by the pressure of the impurities to overcome the elastic force of the elastic member 1 and 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 that attract each other, and drive 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, the air discharged from the air outlet impacts the filter plate surface, drives the impurities away from the filter plate surface, and realizes directional cleaning of the filter plate surface.

[0017] Optionally, the filter plate includes a filter part one, a filter part two, a slide rail, a contact switch two and an elastic member 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 member two in the elastic force direction is connected to the surface of the filter part two, and the other end of the elastic member two in the elastic force direction is connected to the surface of the filter part one, the elastic member two has an elastic force to drive the filter part two to slide in a 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.

[0018] By adopting the above technical scheme, the filter part one shields the inner cavity of the filter frame, impurities adhere to the surface of the filter part one, and the filter part one slides in the direction close to the support plate due to the pressure of impurities, and the contact switch one abuts against the filter part one and is turned on, the electromagnet one has magnetism, the electromagnet one and the electromagnet two are attracted by opposite poles, and drive the filter part one to slide in the direction close to the support plate, the plate surface of the filter part one faces the air outlet, and the filter part two shields the inner cavity of the filter frame, the filter part two can filter the air entering the filter frame, impurities in the outside air adhere to the surface of the filter part two, and the filter part two overcomes the elastic force of the elastic part two under the pressure of impurities and slides in the direction close to the filter part one, the abutment effect of the filter part two on the contact switch two disappears, the contact switch two is disconnected, the electromagnet two is powered off and loses its magnetism, the attraction between the opposite poles of the electromagnet two and the electromagnet one disappears, and the elastic force of the elastic part one 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 to achieve directional sliding of the filter plate.

[0019] 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.

[0020] 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, the filter part 2 is driven to slide in the direction away from the filter frame, and the scraping end of the scraper scrapes away the impurities on the surface of the filter part 2, thereby realizing directional cleaning of the impurities on the surface of the filter part 2.

[0021] 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.

[0022] 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 towards the support plate, the scraping end of scraper 2 scrapes away impurities on the surface of the filter part 1, thereby achieving preliminary cleaning of impurities on the surface of the filter part 1.

[0023] Optionally, the electrical equipment is connected to a warning 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 is electrically connected to the controller. The gas pressure gauge is connected to the surface of the electrical equipment and can detect the air pressure in 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 powered and sound. The circuit breaker is connected to the surface of the electrical equipment and is electrically connected to the circuit breaker. When the numerical value detected by the gas pressure gauge is lower than the warning value, the contacts of the gas pressure gauge are closed and the circuit breaker trips.

[0024] By adopting the above technical solution, the gas pressure gauge can detect the air pressure in 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 in the electrical equipment continues to decrease and the value detected by the gas pressure gauge is lower than the warning value, the contacts of the gas pressure gauge close, driving the circuit breaker to trip, causing the electrical equipment to stop running, thereby achieving the purpose of protecting the electrical equipment.

[0025] In summary, the present application includes at least one of the following beneficial technical effects: The setting of one-way valve 1, one-way valve 2, heat dissipation piston and reciprocating screw rod can realize cooling of electrical equipment, so that the electrical equipment is not easily 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; The fan and filter are set up so that the air can fully contact with the electrical equipment and exchange heat, thus achieving cooling of the electrical equipment; 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

[0026] Figure 1 It is a schematic diagram of the overall structure in the embodiment of the present application.

[0027] Figure 2 It is a cross-sectional view in an embodiment of the present application, mainly showing the heat dissipation device.

[0028] Figure 3 It is a schematic diagram of the local structure in an embodiment of the present application, mainly showing the warning component.

[0029] Description of the accompanying drawings: 1. Box body; 11. Installation 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 rod; 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, slideway; 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

[0030] The following is combined with Figure 1-3 This application is described in further detail.

[0031] 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 sink 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 and the length direction of the box body 1 are parallel to each other. 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 sink 2 is installed on the box body 1. The heat sink 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 running in a high temperature state, thereby ensuring the normal operation of the electrical equipment 3 in the primary-secondary fusion ring network box.

[0032] 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 difficult for the electrical equipment 3 to be damaged by operating under negative pressure, thereby extending the service life of the primary and secondary fused ring network box with air pressure indication and tripping protection functions.

[0033] 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 provided in the box body 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 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 separates 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 application embodiment, there are two one-way valves 23, and the one-way valves 23 correspond to the heat dissipation sections 121 one by one. Two air outlet holes 13 are arranged on the side wall of the box body 1 at intervals, and 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 to the inner cavity of the heat dissipation section 121 one by one. The one-way valve 23 is installed on the inner wall of the air outlet hole 13, and 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, and 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 to the inner cavity of the heat dissipation section 121 one by one. The one-way valve 24 is installed on the inner wall of the air inlet hole 14, and the one-way valve 24 allows the air in the installation cavity 11 to enter the air inlet hole 14.

[0034] Reference Figure 2 When the reciprocating screw 22 rotates on the inner wall of the heat dissipation channel 12, the heat dissipation piston 21 is driven 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 in the direction close to 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 fully in 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 operating in a high temperature state 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.

[0035] 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 fully in 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 it is not easy for external insects to enter the installation cavity 11 through the filter 252, thereby ensuring the stability of the operation of the electrical equipment 3.

[0036] Reference Figure 2 The transmission assembly 26 can convert the wind force of the fan 251 into the power of 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 wheel 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 on 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 to connect the two synchronous wheels 262.

[0037] Reference Figure 2When the fan 251 is running, it drives the outside air into the installation cavity 11 to impact 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 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. There is no need for an external power device to drive the reciprocating screw 22 to rotate, which reduces energy loss and thus embodies the concept of energy saving.

[0038] Reference Figure 2 , the filter assembly 27 can filter the outside air driven by the fan 251, and the filter assembly 27 includes a filter frame 271, a filter plate 272, a support plate 273, an elastic member 274, an electromagnet 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, and the filter frame 271 is located between the two air outlets 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 rod 22. The filter plate 272 can shield the inner cavity of the filter frame 271. The outside air enters the air inlet end of the fan 251 after being filtered through the plate surface of the filter plate 272 or the frame surface of the filter frame 271, 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.

[0039] 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 the slide rails 2723 can be one or two. In the embodiment of the present application, the number of the 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 correspondence. The filter part 2722 is slidably connected to the end surfaces of the two slide rails 2723 that are directly 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 in one of them. The slide rail 2723 is away from the surface of the filter part 1 2721, and the elastic part 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 2722. The elastic part 2725 has the elastic force to drive the filter part 2722 to slide in the direction away from the filter part 1 2721, and the surface of the filter part 2722 tends to abut against the contact switch 2 2724.

[0040] 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 an elastic force to drive the filter part 2721 to slide in the direction close to the filter frame 271, and the filter part 2721 has a tendency to shield the inner cavity of the filter frame 271.

[0041] Reference Figure 2 , the electromagnet 1 275 is installed on the surface of the support plate 273 facing the filter part 1 2721, the contact switch 1 277 is installed on the inner wall of the slide groove 2711 close to the support plate 273, the contact switch 1 277 is electrically connected to the electromagnet 1 275, the electromagnet 2 276 is installed on the surface of the filter part 1 2721 facing the support plate 273, the electromagnet 2 276 is electrically connected to the contact switch 2 2724, the contact switch 2724 abuts against the surface of the filter part 2722 and is turned on, and the electromagnet 2 276 is energized and has magnetic force; when the outside air accumulates on the surface of the filter part 1 2721, the filter part 1 2721 is overcome by the pressure of the impurities by the elastic member 1 2 The filter unit 2721 slides toward the support plate 273 due to the elastic force 74, and 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 slide groove 2711 toward the support plate 273. The filter unit 2 2722 shields 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.

[0042] Reference Figure 2At the same time, when impurities in the air adhere to the surface of the filter part 2722, the filter part 2722 slides along the surface of the slide rail 2723 towards the filter part 1 2721 due to the pressure of the impurities, the abutment effect of the filter part 2722 on the contact switch 2724 disappears, the contact switch 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 towards the filter frame 271, the filter part 1 2721 shields the inner cavity of the filter frame 271, and the filter part 1 2721 contacts the contact switch 1 27 The abutment effect of 7 disappears, the contact switch is disconnected, the electromagnet 1 275 is powered off and loses its magnetic force; at the same time, the filter part 2722 is driven to slide in the direction away from the filter frame 271, and the air outlet 13 is directed toward the plate surface of the filter part 2722. The air discharged from the air outlet 13 impacts the surface of the filter part 2722, driving impurities away from the surface of the filter part 2722, thereby achieving directional cleaning of the surface of the filter part 2722. The elastic force of the elastic part 2725 drives the filter part 2722 to slide in the direction close to the contact switch 2724. The contact switch 2724 abuts against the filter part 2722 and is turned on, and the electromagnet 2 276 is energized and has magnetic force.

[0043] Reference Figure 2 A scraper 6 is welded and fixed on 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 27 is welded and fixed on the surface of the filter frame 271 facing the support plate 273, and the scraping end of the scraper 27 faces the slide groove 2711. The scraping end of the scraper 27 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 filtering the external air.

[0044] The implementation principle of the primary and secondary fusion ring network box with air pressure indication and tripping protection function 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 the direction close to 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 operating in a high temperature state 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.

[0045] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope 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 first check valve (23) and a second check 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) is threadedly connected to the outer wall of the reciprocating screw (22); and the heat dissipation piston (21) is moved along the reciprocating screw (22). The axis slides on the inner wall of the heat dissipation channel (12); an air outlet hole (13) is opened on the outer wall of the box body (1); the air outlet hole (13) is connected to the heat dissipation channel (12); the one-way valve (23) is connected to the inner wall of the air outlet hole (13); the one-way valve (23) allows air in the heat dissipation channel (12) to be discharged from the air outlet hole (13); an air inlet hole (14) is opened on the inner wall of the installation cavity (11); the air inlet hole (14) is connected to the heat dissipation channel (12); the one-way valve (24) is connected to the inner wall of the air inlet hole (14); the one-way valve (24) allows air in the installation cavity (11) to enter the air inlet hole (14).

2. The primary and secondary fusion ring network box with air pressure indication and trip protection function according to claim 1 is characterized in that: The heat dissipation device (2) further comprises an air supply component (25), wherein the air supply component (25) comprises a fan (251) and a filter (252), wherein the fan (251) is mounted on the outer wall of the housing (1), and the air inlet end of the fan (251) faces the installation cavity (11), and the filter (252) is mounted on the outer wall of the housing (1), and the filter (252) is used to discharge air in the installation cavity (11).

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

4. The primary and secondary fusion ring network box with air pressure indication and trip protection function according to claim 2 is characterized in that: The heat dissipation device (2) also includes a filter assembly (27), the filter assembly (27) including a filter frame (271) and a filter plate (272), the filter frame (271) being connected to the outer wall of the box body (1), the filter frame (271) surrounding the outer periphery of the fan (251), the surface of the filter frame (271) being provided with a slide groove (2711) for the filter plate (272) to slide, the filter plate (272) shielding the inner cavity of the filter frame (271), and the outside air enters the air inlet end of the fan (251) after being filtered by the filter plate (272) or the filter frame (271).

5. The primary and secondary fusion ring network box with air pressure indication and trip protection function according to claim 4 is characterized in that: The filter assembly (27) further comprises a support plate (273) and an elastic member 1 (274); the support plate (273) is connected to the outer wall of the box body (1); one end of the elastic member 1 (274) in the elastic force direction is connected to the surface of the support plate (273); one end of the elastic member 1 (274) in the elastic force direction is connected to the surface of the filter plate (272); the elastic member 1 (274) has an elastic force that drives the filter plate (272) to slide in a direction close to the filter frame (271), and the filter plate (272) has a tendency to cover the inner cavity of the filter frame (271).

6. The primary and secondary fusion ring network box with air pressure indication and trip protection function according to claim 5 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 comprises an electromagnet 1 (275), an electromagnet 2 (276) and a contact switch 1 (277). The electromagnet 1 (275) is connected to the plate surface of the support plate (273) facing the filter plate (272). The electromagnet 2 (276) is connected to the plate surface of the filter plate (272) facing the support plate (273). The contact switch 1 (277) is connected to the inner portion of the slide groove (2711) near the elastic member 1 (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).

7. The primary and secondary fused ring network box with air pressure indication and trip protection function according to claim 6 is characterized in that: The filter plate (272) comprises 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 to drive 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.

8. The primary and secondary fused ring network box with air pressure indication and trip protection function according to claim 7 is characterized in that: The surface of the filter frame (271) close to the contact switch 2 (2724) is connected to a scraper 1 (6), and the scraper 1 (6) can scrape off impurities on the surface of the filter part 2 (2722).

9. The primary and secondary fused ring network box with air pressure indication and trip protection function according to claim 7 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).

10. The primary and secondary fused ring network box with air pressure indication and trip protection function according to claim 1 is characterized in that: The electrical device (3) is connected to a warning component, the warning component comprising 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 powered 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.

Images