A dustproof protective box for electrical equipment with high efficiency heat dissipation

Abstract

The invention discloses an electrical equipment dustproof protection box with high efficiency in heat dissipation, belonging to the technical field of electrical equipment. An electrical equipment dustproof protection box with high efficiency in heat dissipation comprises a base and a cabinet fixedly mounted on its surface. In the electrical equipment dustproof protection box with high efficiency in heat dissipation, wind enters the interior of the heat dissipation device through a plurality of air outlets, air supply pipes, air inlet pipes and air inlet holes. When two heat dissipation devices near the bottom of the fixed frame supply air, wind enters the interior of the heat dissipation device through a plurality of air outlets, cold air pipes, cold air holes, through holes, air inlet pipes and air inlet holes. Two air regulating plates rotate in opposite directions to reduce the exhaust area of ​​the heat dissipation device, improve the heat dissipation effect on the electrical equipment parts, and ensure the normal operation of the electrical equipment parts. In winter, the two heat dissipation devices near the bottom of the fixed frame blow hot air to the electrical equipment parts at the bottom to avoid the problem of frosting of the electrical equipment parts at the bottom of the protection box, further ensuring the stable operation of the electrical equipment parts.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical equipment, and more particularly to a dustproof protective box for electrical equipment with high-efficiency heat dissipation. Background Art

[0002] Electrical equipment is an important component of the power system and power consumption system. It is used for the production, transmission, distribution, use and manufacturing of electric energy. It converts mechanical energy into electrical energy through generators, transmits electrical energy from power plants to various regions through transformers and transmission lines, and distributes electrical energy to end users through distribution equipment.

[0003] Chinese patent application number CN202111526837.6 discloses an electrical equipment protection box with efficient heat dissipation, including: a protective box body, a heat dissipation and dustproof mechanism, which is provided with two groups, each group of heat dissipation and dustproof mechanism is symmetrically arranged in the protective box body, and is used to protect the heat dissipation and dustproof inside the box body, wherein each group of heat dissipation and dustproof mechanism includes multiple heat dissipation holes, two cooling fans, a driving component, a dustproof frame, a dustproof net and a cleaning plate.

[0004] The electrical equipment protection box with efficient heat dissipation can speed up the heat dissipation of electrical equipment, avoid poor heat dissipation effect of electrical equipment, facilitate staff to inspect and repair electrical equipment, and avoid troublesome inspection and repair of electrical equipment. However, the existing electrical equipment protection box usually adopts a simple ventilation design to reduce the internal temperature, but this design often relies on multiple ventilation fans to achieve air circulation. However, the multi-fan system not only increases energy consumption, but also has unsatisfactory effects in actual applications. Since the wind blown by the fan is diffused, the blowing area of ​​the air outlet cannot be changed, resulting in low heat dissipation efficiency. In addition, in winter, the bottom of the electrical equipment protection box where it contacts the ground is prone to frost due to temperature difference, further affecting the normal operation of the equipment. Summary of the invention

[0005] The purpose of the present invention is to provide a dustproof protective box for electrical equipment with high efficiency in heat dissipation, so as to solve the problems raised in the above background technology: In order to achieve the above object, the present invention provides the following technical solutions: 14. The heat dissipation device as claimed in claim 13, wherein the heat dissipation device is an air conditioning device and a heat dissipation device is provided on the cooling unit. The heat dissipation device is an air conditioning device and a heat dissipation device is provided on the cooling unit. The heat dissipation device is an air conditioning device and a heat dissipation device is provided on the cooling unit. The heat dissipation device is an air conditioning device and a heat dissipation device is provided on the cooling unit.

[0006] By adopting the above technical scheme, wind enters the heat dissipation device through multiple air outlets, air supply pipes, air inlet pipes and air inlet holes. When supplying air to the two heat dissipation devices near the bottom of the fixed frame, wind enters the heat dissipation device through multiple air outlets, cold air pipes, cold air holes, through holes, air inlet pipes and air inlet holes. Then the telescopic device extends and moves the lifting plate upward. At this time, the gear plate moves with the first gear and the second gear to rotate in opposite directions, so that the rotation of the rotating shaft rotates with the air regulating plate. The two air regulating plates rotate in opposite directions to reduce the exhaust area of ​​the heat dissipation device, and then convect with the outside air through multiple heat dissipation holes, thereby improving the heat dissipation effect of electrical equipment and ensuring the normal operation of electrical equipment. In winter, the problem of frosting of electrical equipment at the bottom of the protection box is avoided, further ensuring the stable operation of the electrical equipment.

[0007] Preferably, first rotating shafts are provided at both ends of the rotating shaft, and the rotating shaft is rotatably connected to the rotating groove via the first rotating shafts.

[0008] Preferably, a fan bracket is fixedly installed on the inner wall of the cabinet, a fan device is fixedly installed on the surface of the fan bracket, an air collecting plate connected to the fan device is fixedly installed on the surface of the fan device, and the surface of the air collecting plate is provided with air outlets with the same number as the air inlet pipe, the air inlet pipe is connected with the air outlet through the air supply pipe, and two heat dissipation devices near the bottom of the fixed frame are connected with the air collecting plate through the air inlet pipe, through holes, cold air holes, cold air pipe and air outlet, and one end of the cold air pipe is connected with the air outlet.

[0009] By adopting the above technical solution, the two heat dissipation devices at the bottom of the fixing frame can dissipate heat for the electrical equipment at the bottom, and in winter, the electrical equipment at the bottom of the protection box can be prevented from frosting.

[0010] Preferably, the surface of the cold-heat converter is provided with grooves for the movement of the cold air pipe and the hot air pipe, a mounting plate is provided between the cold-heat converter and the two heat sinks, and the cold-heat converter is fixedly connected to the heat sink via the mounting plate.

[0011] Preferably, a through-type guide rod is slidably connected to the inner bottom surface of the cold-heat converter, one end of the guide rod is fixedly connected to the conversion frame, the other end of the guide rod is fixedly mounted with a movable seat, and the surface of the guide rod is sleeved with a spring for its reset.

[0012] By adopting the above technical solution, the guide rod is used to guide the movement of the conversion frame.

[0013] Preferably, one end of the spring is fixedly connected to the bottom surface of the cold-heat converter, and the other end of the spring is fixedly connected to the surface of the movable seat, and the movable seat is elastically connected to the cold-heat converter via the spring.

[0014] By adopting the above technical solution, the spring is used to reset the movement of the moving seat.

[0015] Preferably, the surface of the fixed frame is rotatably connected to a second rotating shaft, a cam for squeezing the movable seat is fixedly mounted on one end surface of the second rotating shaft, a motor is fixedly mounted on the surface of the fixed frame, and an output end of the motor is fixedly connected to the second rotating shaft.

[0016] By adopting the above technical solution, the rotation of the cam causes the conversion frame to move, thereby realizing the exchange of cold air and hot air of the cold-heat converter.

[0017] Preferably, one ends of the two first rotating shafts extend to the outside of the heat dissipation device, and a first gear and a second gear are fixedly installed on one end surface of the two first rotating shafts, respectively, a lifting plate which vertically reciprocates up and down is provided between the first gear and the second gear, and toothed plates meshing with the first gear and the second gear are fixedly installed on both side surfaces of the lifting plate, a telescope is fixedly installed on the surface of the cabinet, and the telescopic end of the telescope is fixedly connected to the lifting plate, and a plurality of heat dissipation holes are provided on both side surfaces of the cabinet.

[0018] By adopting the above technical solution, the telescopic device is extended to move upward with the lifting plate. At this time, the gear plate moves and causes the first gear and the second gear to rotate toward each other, so that the rotation of the rotating shaft causes the air regulating plate to rotate. The two air regulating plates rotate toward each other, which reduces the exhaust area of ​​the heat dissipation device, and then convects with the outside air through multiple heat dissipation holes, thereby improving the cooling of electrical equipment.

[0019] Preferably, a heater is fixedly mounted on the bottom surface of the cabinet, a wind collecting bin connected to the heater is fixedly mounted on the top surface of the heater, a plurality of exhaust ports connected to the hot air duct are provided on the top surface of the wind collecting bin, a plurality of through connecting holes are provided on the surface of the base, a heat dissipation groove connected to the connecting holes is provided on the side surface of the base, a fan body for blowing air thereto is fixedly mounted on the bottom surface of the heater, and the heater is connected to the heat dissipation groove by matching the fan body with the connecting hole, the fan body is inside the connecting hole, and two switch doors are provided on the surface of the cabinet.

[0020] By adopting the above technical solution, wind enters the two heat dissipation devices near the bottom of the fixed frame through the hot air pipe, hot air holes, through holes, air inlet pipes and air inlet holes, and then blows hot air to the electrical equipment parts at the bottom, thereby avoiding the problem of frosting of the electrical equipment parts at the bottom of the protective box.

[0021] Preferably, a detachable dustproof net is provided on the back of the cabinet, the dustproof net corresponds to the position of the fan device, and the dustproof net is used to protect the fan device from dust.

[0022] By adopting the above technical solution, a removable dust net is provided on the back of the cabinet. When there is a lot of dust on the surface of the dust net, the dust net can be removed for cleaning to ensure the amount of outside wind entering the cabinet, thereby ensuring the heat dissipation effect on the electrical equipment and further ensuring the normal operation of the electrical equipment.

[0023] Compared with the prior art, the present invention has the following beneficial effects: 1) When the dustproof protective box for electrical equipment with high efficiency in heat dissipation is in use, wind enters the heat dissipation device through multiple air outlets, air supply pipes, air inlet pipes and air inlet holes. When air is supplied to two heat dissipation devices near the bottom of the fixing frame, wind enters the heat dissipation device through multiple air outlets, cold air pipes, cold air holes, through holes, air inlet pipes and air inlet holes. Then the telescopic device extends and moves the lifting plate upward. At this time, the gear plate moves and drives the first gear and the second gear to rotate in opposite directions, so that the rotation axis rotates and drives the air regulating plate to rotate. The two air regulating plates rotate in opposite directions, so that the exhaust area of ​​the heat dissipation device is reduced, and then convection with the outside air is carried out through multiple heat dissipation holes, which can improve the heat dissipation effect of the electrical equipment and ensure the normal operation of the electrical equipment.

[0024] 2) When the dustproof protective box for electrical equipment with high-efficiency heat dissipation is in use, the fan body works to blow air into the heater, the air is heated by the heater, gathered through the air gathering bin, and discharged from the exhaust port. At this time, the motor rotates and drives the cam to rotate and squeeze the movable seat, and the movable seat moves upward and drives the guide rod upward, thereby causing the conversion frame to move upward inside the hot and cold converter, so that the hot air hole is connected with the through hole, and then the air passes through the hot air pipe, hot air hole, through hole, air intake pipe and air intake hole into the two heat dissipation devices near the bottom of the fixed frame, and then blows hot air to the electrical equipment parts at the bottom, so as to avoid the problem of frosting of the electrical equipment parts at the bottom of the protective box, and further ensure the stable operation of the electrical equipment parts.

[0025] 3) When this dustproof protection box for electrical equipment with high efficiency in heat dissipation is in use, a detachable dust net is provided on the back of the cabinet. When there is a lot of dust on the surface of the dust net, the dust net can be removed for cleaning to ensure the amount of outside wind that can enter the cabinet, thereby ensuring the heat dissipation effect on the electrical equipment and thus ensuring the normal operation of the electrical equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the installation position structure of the dustproof net of the present invention; Figure 3 It is a schematic diagram of the internal structure of the cabinet of the present invention; Figure 4 It is a schematic diagram of the distribution and installation structure of the electrical equipment and the heat dissipation device of the present invention; Figure 5 It is a schematic diagram of the structure of the cold-heat converter of the present invention; Figure 6 It is a schematic diagram of the structure of the heat dissipation device of the present invention; Figure 7 It is a schematic diagram of the internal structure of the heat dissipation device of the present invention; Figure 8 It is a schematic diagram of the installation position structure of the conversion frame of the present invention; Fig. 9 It is a schematic diagram of the separation of the cold and hot converter and the conversion frame of the present invention; Fig.10 It is a schematic diagram of the installation position of the fan device and the air collecting plate of the present invention; Fig.11 This is a schematic diagram of the installation position of the heater of the present invention.

[0027] Explanation of the numbers in the figure: 1. base; 2. cabinet; 3. fixing frame; 4. electrical equipment; 5. heat dissipation device; 6. rotating slot; 7. first rotating shaft; 8. rotating shaft; 9. air regulating plate; 10. air inlet; 11. air inlet pipe; 12. cold and hot converter; 13. through hole; 14. conversion frame; 15. cold air hole; 16. hot air hole; 17. cold air pipe; 18. hot air pipe; 19. fan bracket; 20. fan device; 21. air collecting disk; 22. air outlet 1. opening; 23. slot; 24. mounting plate; 25. guide rod; 26. moving seat; 27. spring; 28. second rotating shaft; 29. ​​cam; 30. motor; 31. first gear; 32. second gear; 33. lifting plate; 34. tooth plate; 35. telescope; 36. heat dissipation hole; 37. heater; 38. wind collecting chamber; 39. exhaust port; 40. connecting hole; 41. fan body; 42. heat dissipation slot; 43. dust screen; 44. door opening and closing. DETAILED DESCRIPTION

[0028] Example 1: Please refer to Figure 1 - Fig.11A dustproof protection box for electrical equipment with high efficiency in heat dissipation comprises a base 1 and a cabinet 2 fixedly mounted on the surface thereof, the cabinet 2 is used to protect the electrical equipment parts 4 inside to prevent the electrical equipment parts 4 from being damaged by external forces, a fixing frame 3 is fixedly mounted on the inner bottom surface of the cabinet 2, a plurality of electrical equipment parts 4 and heat dissipation devices 5 are fixedly mounted on the two side surfaces of the fixing frame 3, and the heat dissipation devices 5 and the electrical equipment parts 4 are arranged alternately and spaced up and down, the heat dissipation devices 5 are heat dissipation devices 5 with adjustable blowing area, the corresponding inner walls of the heat dissipation devices 5 are all provided with rotating grooves 6, the inner rotatable connection of the rotating grooves 6 is provided with a rotating shaft 8, the surfaces of the two rotating shafts 8 are both fixedly provided with air regulating plates 9, the inner wall of the heat dissipation device 5 is provided with a plurality of through-type inlets The heat dissipation device 5 has a plurality of air inlet pipes 11 connected to the air inlet holes 10 fixedly mounted on the surface thereof. A heat converter 12 is fixedly mounted on the surfaces of the two heat dissipation devices 5 near the bottom of the fixing frame 3. In winter, the heat converter 12 realizes the exchange of cold air and hot air. A through hole 13 connected to the air inlet pipe 11 is provided on the surface of the heat converter 12. A conversion frame 14 matching the heat converter 12 is slidably connected inside the heat converter 12. A plurality of cold air holes 15 and hot air holes 16 are respectively provided on the surface of the conversion frame 14. A cold air pipe 17 and a hot air pipe 18 connected to the cold air holes 15 and the hot air holes 16 are fixedly mounted on the surface of the conversion frame 14. The wind passes through a plurality of air outlets 22, air supply pipes, air inlet pipes 11 and The air inlet 10 enters the heat sink 5, and when air is supplied to the two heat sinks 5 near the bottom of the fixing frame 3, the air enters the heat sink 5 through the multiple air outlets 22, the cold air pipe 17, the cold air hole 15, the through hole 13, the air inlet pipe 11 and the air inlet 10, and then the telescopic device 35 extends and moves upward with the lifting plate 33. At this time, the gear plate 34 moves and drives the first gear 31 and the second gear 32 to rotate in opposite directions, so that the rotating shaft 8 rotates and drives the air regulating plate 9 to rotate. The two air regulating plates 9 rotate in opposite directions, so that the exhaust area of ​​the heat sink 5 is reduced, and then the air is convected with the outside air through the multiple heat dissipation holes 36, which can improve the heat dissipation effect of the electrical equipment 4 and ensure the normal operation of the electrical equipment 4; the fan body 41 works to increase Air is blown in the heater 37, and the air is heated by the heater 37, gathered by the air gathering bin 38, and discharged from the exhaust port 39. At this time, the motor 30 rotates and drives the cam 29 to rotate and squeeze the movable seat 26, and the movable seat 26 moves upward and drives the guide rod 25 to move upward, thereby making the conversion frame 14 move upward inside the cold and hot converter 12, so that the hot air hole 16 is connected with the through hole 13, and then the wind passes through the hot air pipe 18, the hot air hole 16, the through hole 13, the air inlet pipe 11 and the air inlet hole 10 into the two heat dissipation devices 5 near the bottom of the fixed frame 3, and then blows hot air to the electrical equipment parts 4 at the bottom, so as to avoid the problem of frosting of the electrical equipment parts 4 at the bottom of the protection box, and further ensure the stable operation of the electrical equipment parts 4.

[0029] First rotating shafts 7 are provided at both ends of the rotating shaft 8 , and the rotating shaft 8 is rotatably connected to the rotating groove 6 via the first rotating shafts 7 .

[0030] A fan bracket 19 is fixedly installed on the inner wall of the cabinet 2, and a fan device 20 is fixedly installed on the surface of the fan bracket 19. An air collecting plate 21 connected to the fan device 20 is fixedly installed on the surface of the fan device 20. The surface of the air collecting plate 21 is provided with air outlets 22 the same number as the air inlet pipe 11. The air inlet pipe 11 is connected with the air outlet 22 through the air supply pipe. The two heat dissipation devices 5 near the bottom of the fixed frame 3 are connected with the air collecting plate 21 through the air inlet pipe 11, the through hole 13, the cold air hole 15, the cold air pipe 17 and the air outlet 22. One end of the cold air pipe 17 is connected with the air outlet 22. The two heat dissipation devices 5 at the bottom of the fixed frame 3 can not only dissipate the heat for the electrical equipment parts 4 at the bottom, but also avoid the problem of frost on the electrical equipment parts 4 at the bottom of the protection box in winter.

[0031] The surface of the heat-cold converter 12 is provided with slots 23 for the movement of the cold air pipe 17 and the hot air pipe 18 . A mounting plate 24 is provided between the heat-cold converter 12 and the two heat sinks 5 . The heat-cold converter 12 is fixedly connected to the heat sink 5 via the mounting plate 24 .

[0032] A through-type guide rod 25 is slidably connected to the bottom surface of the cold-heat converter 12. One end of the guide rod 25 is fixedly connected to the conversion frame 14. A moving seat 26 is fixedly installed on the other end of the guide rod 25. A spring 27 for its reset is sleeved on the surface of the guide rod 25. The guide rod 25 is used to guide the movement of the conversion frame 14.

[0033] One end of the spring 27 is fixedly connected to the bottom surface of the heat-cold converter 12 , and the other end of the spring 27 is fixedly connected to the surface of the movable seat 26 . The movable seat 26 is elastically connected to the heat-cold converter 12 via the spring 27 , and the spring 27 is used to reset the movable seat 26 .

[0034] The surface of the fixed frame 3 is rotatably connected to the second rotating shaft 28, and a cam 29 for squeezing the movable seat 26 is fixedly installed on the surface of one end of the second rotating shaft 28. A motor 30 is fixedly installed on the surface of the fixed frame 3. The motor 30 is a conventional electric motor in the prior art. The output end of the motor 30 is fixedly connected to the second rotating shaft 28. The rotation of the cam 29 causes the conversion frame 14 to move, thereby realizing the cold air and hot air exchange of the cold and hot converter 12.

[0035] One end of the two first rotating shafts 7 extends to the outside of the heat dissipation device 5, and the first gear 31 and the second gear 32 are fixedly installed on the one end surface of the two first rotating shafts 7 respectively, and a lifting plate 33 that can reciprocate vertically up and down is arranged between the first gear 31 and the second gear 32, and toothed plates 34 that mesh with the first gear 31 and the second gear 32 are fixedly installed on the two side surfaces of the lifting plate 33, and a telescope 35 is fixedly installed on the surface of the cabinet 2. The telescope 35 is a conventional electric control push rod in the prior art, and the telescopic end of the telescope 35 is fixedly connected to the lifting plate 33. A plurality of heat dissipation holes 36 are opened on the two side surfaces of the cabinet 2. The telescope 35 is extended to move upward with the lifting plate 33. At this time, the toothed plate 34 moves with the first gear 31 and the second gear 32 to rotate in opposite directions, so that the rotation of the rotating shaft 8 rotates with the air regulating plate 9. The two air regulating plates 9 rotate in opposite directions, which reduces the exhaust area of ​​the heat dissipation device 5, and then convects with the outside air through the plurality of heat dissipation holes 36, thereby improving the cooling of the electrical equipment 4.

[0036] A heater 37 is fixedly installed on the bottom surface of the cabinet 2. The heater 37 is a conventional gas heating device in the prior art. A wind collecting bin 38 connected to the heater 37 is fixedly installed on the top surface of the heater 37. A plurality of exhaust ports 39 connected to the hot air pipe 18 are provided on the top surface of the wind collecting bin 38. A plurality of through connecting holes 40 are provided on the surface of the base 1. A heat dissipation groove 42 connected to the connecting hole 40 is provided on the side surface of the base 1. A fan body 41 for blowing air to the heater 37 is fixedly installed on the bottom surface of the heater 37. The heater 37 is connected to the heat dissipation groove 42 by matching the connecting hole 40 through the fan body 41. The fan body 41 is inside the connecting hole 40. Two switch doors 44 are provided on the surface of the cabinet 2. The wind enters the two heat dissipation devices 5 near the bottom of the fixed frame 3 through the hot air pipe 18, the hot air hole 16, the through hole 13, the air inlet pipe 11 and the air inlet hole 10, and then blows hot air to the electrical equipment parts 4 at the bottom to avoid the problem of frosting of the electrical equipment parts 4 at the bottom of the protection box.

[0037] The use steps of the present invention are as follows: when the dustproof protective box for electrical equipment with high efficiency heat dissipation is in use, when the electrical equipment part 4 needs to be cooled, when the fan device 20 is working, the wind will gather inside the wind collecting plate 21, and then the wind will enter the heat dissipation device 5 through multiple air outlets 22, air supply pipes, air inlet pipes 11 and air inlet holes 10. When the wind is supplied to the two heat dissipation devices 5 near the bottom of the fixing frame 3, the wind will enter the heat dissipation device 5 through multiple air outlets 22, cold air pipes 17, cold air holes 15, through holes 13, air inlet pipes 11 and air inlet holes 10, and then the telescopic device 35 extends to move upward with the lifting plate 33, and at this time the tooth plate 3 4 movement drives the first gear 31 and the second gear 32 to rotate in the opposite direction, so that the rotating shaft 8 rotates and drives the air regulating plate 9 to rotate. The two air regulating plates 9 rotate in the opposite direction to reduce the exhaust area of ​​the heat dissipation device 5, and then convect with the outside air through multiple heat dissipation holes 36, which can improve the heat dissipation effect of the electrical equipment 4. In winter, in order to avoid the problem of frost easily forming on the bottom of the protection box and the contact part with the ground, the fan body 41 works to blow air into the heater 37. The air is heated by the heater 37, concentrated by the air collecting bin 38, and discharged from the exhaust port 39. At this time, the motor 30 rotates and drives the cam 29 to rotate and squeeze the moving seat 26. , the movable seat 26 moves upward with the guide rod 25, so that the conversion frame 14 moves upward inside the cold and hot converter 12, so that the hot air hole 16 is connected with the through hole 13, and then the wind passes through the hot air pipe 18, the hot air hole 16, the through hole 13, the air inlet pipe 11 and the air inlet hole 10 into the two heat dissipation devices 5 near the bottom of the fixed frame 3, and then blows hot air to the electrical equipment parts 4 at the bottom to avoid the problem of easy frost on the electrical equipment parts 4 at the bottom of the protection box. In this solution, the wind enters the heat dissipation device 5 through multiple air outlets 22, air supply pipes, air inlet pipes 11 and air inlet holes 10, and blows hot air to the electrical equipment parts 4 at the bottom. When the two heat sinks 5 at the bottom supply air, the air enters the heat sink 5 through the multiple air outlets 22, the cold air pipe 17, the cold air hole 15, the through hole 13, the air inlet pipe 11 and the air inlet hole 10, and then the telescopic device 35 extends to move the lifting plate 33 upward, at which time the gear plate 34 moves to rotate the first gear 31 and the second gear 32 in opposite directions, so that the rotating shaft 8 rotates to rotate the air regulating plate 9, and the two air regulating plates 9 rotate in opposite directions to reduce the exhaust area of ​​the heat sink 5, and then convect with the outside air through the multiple heat dissipation holes 36, which can improve the heat dissipation effect of the electrical equipment 4 and ensure the normal operation of the electrical equipment 4;The fan body 41 works to blow air into the heater 37. The air is heated by the heater 37, concentrated by the air collecting bin 38, and discharged from the air outlet 39. At this time, the motor 30 rotates to drive the cam 29 to rotate and squeeze the movable seat 26. The movable seat 26 moves upward and drives the guide rod 25 upward, thereby causing the conversion frame 14 to move upward inside the cold and hot converter 12, so that the hot air hole 16 is connected with the through hole 13. Then, the air passes through the hot air pipe 18, the hot air hole 16, the through hole 13, the air inlet pipe 11 and the air inlet 10 into the two heat dissipation devices 5 near the bottom of the fixing frame 3, and then blows hot air to the electrical equipment 4 at the bottom, thereby avoiding the problem of easy frost on the electrical equipment 4 at the bottom of the protection box, and further ensuring the stable operation of the electrical equipment 4. ;

[0038] Example 2: Please refer to Figure 1 - Fig.11 , combined with the basis of Example 1, the difference is that a detachable dustproof net 43 is provided on the back of the cabinet 2, the dustproof net 43 corresponds to the position of the fan device 20, and the dustproof net 43 is used to prevent dust from entering the fan device 20. The fan device 20 is a conventional air supply device in the prior art. When the fan device 20 is working, the external wind enters the interior of the cabinet 2 through the dustproof net 43. Due to the presence of floating dust in the external environment, it will stay on the surface of the dustproof net 43 for a long time, which will affect the passage of external wind, thereby reducing the entry of wind and affecting the heat dissipation effect of the electrical equipment 4. A detachable dustproof net 43 is provided on the back of the cabinet 2. When there is a lot of dust on the surface of the dustproof net 43, the dustproof net 43 can be removed for cleaning to ensure the passage of external wind into the cabinet 2, ensure the heat dissipation effect of the electrical equipment 4, and thus ensure the normal operation of the electrical equipment 4.

[0039] The steps of using the present invention are as follows: when the dustproof protective box for electrical equipment with high efficiency in heat dissipation is in use, when the fan device 20 is working, the external wind enters the interior of the cabinet 2 through the dustproof net 43. Due to the presence of floating dust in the external environment, it will stay on the surface of the dustproof net 43 for a long time, which will affect the amount of external wind passing through, thereby reducing the amount of wind entering and affecting the heat dissipation effect of the electrical equipment 4. A detachable dustproof net 43 is provided on the back of the cabinet 2. When there is a lot of dust on the surface of the dustproof net 43, the dustproof net 43 can be removed for cleaning to ensure the amount of external wind entering the cabinet 2, ensure the heat dissipation effect on the electrical equipment 4, and thus ensure the normal operation of the electrical equipment 4.

[0040] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An electrical equipment dust protection box with high heat dissipation efficiency, comprising a base (1) and a cabinet (2) fixedly mounted on the surface of the base, characterized in that: A fixing frame (3) is fixedly mounted on the inner bottom surface of the cabinet (2); a plurality of electrical equipment components (4) and a heat dissipation device (5) are fixedly mounted on the two side surfaces of the fixing frame (3); the heat dissipation device (5) and the electrical equipment components (4) are arranged in an interlaced manner up and down; corresponding inner walls of the heat dissipation device (5) are provided with rotation grooves (6); a rotating shaft (8) is rotatably connected inside the rotation groove (6); air regulating plates (9) are fixedly mounted on the surfaces of the two rotating shafts (8); a plurality of through-type air inlet holes (10) are provided on the inner wall of the heat dissipation device (5); a plurality of air inlet holes (10) are fixedly mounted on the surface of the heat dissipation device (5) and are connected to the air inlet holes (11). A heat exchanger (12) is fixedly mounted on the surfaces of the two heat dissipation devices (5) near the bottom of the fixing frame (3); a through hole (13) connected to the air intake pipe (11) is provided on the surface of the heat exchanger (12); a conversion frame (14) matching the heat exchanger (12) is slidably connected inside the heat exchanger (12); a plurality of cold air holes (15) and hot air holes (16) are respectively provided on the surface of the conversion frame (14); and cold air pipes (17) and hot air pipes (18) connected to the cold air holes (15) and the hot air holes (16) are respectively fixedly mounted on the surface of the conversion frame (14).

2. The dustproof protective box for electrical equipment with high heat dissipation according to claim 1, characterized in that: First rotating shafts (7) are provided at both ends of the rotating shaft (8), and the rotating shaft (8) is rotatably connected to the rotating groove (6) via the first rotating shaft (7).

3. The dustproof protective box for electrical equipment with high heat dissipation according to claim 1, characterized in that: A fan bracket (19) is fixedly mounted on the inner wall of the cabinet (2), a fan device (20) is fixedly mounted on the surface of the fan bracket (19), an air collecting plate (21) connected thereto is fixedly mounted on the surface of the fan device (20), the surface of the air collecting plate (21) is provided with air outlets (22) the same number as the air inlet pipe (11), the air inlet pipe (11) is connected to the air outlets (22) via an air supply pipe, two heat dissipation devices (5) near the bottom of the fixed frame (3) are connected to the air collecting plate (21) via the air inlet pipe (11), the through hole (13), the cold air hole (15), the cold air pipe (17) and the air outlet (22), and one end of the cold air pipe (17) is connected to the air outlet (22).

4. The dustproof protective box for electrical equipment with high heat dissipation according to claim 1, characterized in that: The surface of the cold-heat converter (12) is provided with a slot (23) for the movement of the cold air pipe (17) and the hot air pipe (18), a mounting plate (24) is provided between the cold-heat converter (12) and the two heat sinks (5), and the cold-heat converter (12) is fixedly connected to the heat sink (5) via the mounting plate (24).

5. The dustproof protective box for electrical equipment with high heat dissipation according to claim 1, characterized in that: A through-type guide rod (25) is slidably connected to the inner bottom surface of the cold-heat converter (12); one end of the guide rod (25) is fixedly connected to the conversion frame (14); a moving seat (26) is fixedly mounted on the other end of the guide rod (25); and a spring (27) for resetting the guide rod (25) is sleeved on the surface of the guide rod (25).

6. The dustproof protective box for electrical equipment with high heat dissipation according to claim 5, characterized in that: One end of the spring (27) is fixedly connected to the bottom surface of the cold-heat converter (12), and the other end of the spring (27) is fixedly connected to the surface of the movable seat (26); the movable seat (26) is elastically connected to the cold-heat converter (12) via the spring (27).

7. The dustproof protective box for electrical equipment with high heat dissipation according to claim 6, characterized in that: A second rotating shaft (28) is rotatably connected to the surface of the fixed frame (3); a cam (29) for pressing the movable seat (26) is fixedly mounted on the surface of one end of the second rotating shaft (28); a motor (30) is fixedly mounted on the surface of the fixed frame (3); and an output end of the motor (30) is fixedly connected to the second rotating shaft (28).

8. The dustproof protective box for electrical equipment with high heat dissipation according to claim 2, characterized in that: One end of the two first rotating shafts (7) extends to the outside of the heat dissipation device (5), and a first gear (31) and a second gear (32) are fixedly mounted on one end surface of the two first rotating shafts (7), respectively; a lifting plate (33) that reciprocates vertically up and down is provided between the first gear (31) and the second gear (32), and tooth plates (34) that mesh with the first gear (31) and the second gear (32) are fixedly mounted on both side surfaces of the lifting plate (33); a telescoping device (35) is fixedly mounted on the surface of the cabinet (2), and the telescopic end of the telescoping device (35) is fixedly connected to the lifting plate (33), and a plurality of heat dissipation holes (36) are provided on both side surfaces of the cabinet (2).

9. The dustproof protective box for electrical equipment with high heat dissipation according to claim 1, characterized in that: A heater (37) is fixedly mounted on the bottom surface of the cabinet (2); a wind collecting bin (38) connected to the heater (37) is fixedly mounted on the top surface of the heater (37); a plurality of exhaust ports (39) connected to the hot air pipe (18) are provided on the top surface of the wind collecting bin (38); a plurality of through connection holes (40) are provided on the surface of the base (1); a heat dissipation groove (42) connected to the connection hole (40) is provided on the side surface of the base (1); a fan body (41) for blowing air thereon is fixedly mounted on the bottom surface of the heater (37); the heater (37) is connected to the heat dissipation groove (42) by matching the fan body (41) with the connection hole (40); the fan body (41) is inside the connection hole (40); and two switch doors (44) are provided on the surface of the cabinet (2).

10. The dustproof protective box for electrical equipment with high heat dissipation efficiency according to claim 3, characterized in that: A detachable dustproof net (43) is provided on the back of the cabinet (2); the dustproof net (43) corresponds to the position of the fan device (20), and the dustproof net (43) is used to protect the fan device (20) from dust.

Images