Electrical cabinet with high heat dissipation coefficient

Abstract

The invention relates to the field of electrical cabinets, in particular to an electrical cabinet with a high heat dissipation coefficient, an air guide pipe penetrating through a top plate is arranged at the air outlet end of a heat dissipation fan, a shunting air pipe is fixedly arranged at the lower end of the air guide pipe, and two air outlet assemblies are symmetrically arranged on the two sides of the shunting air pipe; a pre-cooling assembly used for pre-cooling air is arranged above the cabinet body, a plurality of ventilation assemblies are arranged on the two sides of the cabinet body, a pre-cooling effect can be provided for the air entering the cabinet body through the pre-cooling assembly, and the heat dissipation effect of the air outlet assembly on electrical parts in the cabinet body can be improved. The temperature of each area in the cabinet body can be detected through the smoke temperature composite detector, and when the temperature in the corresponding area exceeds the specified maximum limit value, the quenching assembly can be moved to the specified area, and high-temperature parts in the specified area can be rapidly cooled.

Description

Technical Field

[0001] The present invention relates to the field of electrical cabinets, and specifically to an electrical cabinet with a high heat dissipation coefficient. Background Art

[0002] Electrical cabinets are usually made of steel and are used to accommodate electronic components. They are widely used in industrial electrical control systems. Since there are multiple electrical components placed inside the electrical cabinet, and the electrical components will inevitably generate a large amount of heat during operation, a heat dissipation device needs to be provided inside the electrical cabinet; In the related art, the heat dissipation device of the electrical cabinet is generally a fan. The fan is located inside the electrical cabinet and is connected to the inner wall of the electrical cabinet. The fan blows air into the electrical cabinet to achieve heat dissipation inside the electrical cabinet; However, in the above structure, when the fan blows air, due to the fixed position of the fan, it can only blow air in one direction of the electrical cabinet, resulting in uneven heat dissipation and poor heat dissipation effect when the temperature inside the electrical cabinet is relatively high. The long-term high temperature will cause the insulation material inside the electrical cabinet to age, easily cause arc breakdown, and thus trigger a fire accident. Summary of the Invention

[0003] Aiming at the deficiencies of the prior art, the present invention provides an electrical cabinet with a high heat dissipation coefficient.

[0004] To achieve the above object, the present invention provides the following technical solution: An electrical cabinet with a high heat dissipation coefficient, including a cabinet body. A top plate is provided at the top of the cabinet body. A heat dissipation fan is fixedly arranged above the top plate. A plurality of air inlet holes are provided at the upper end of the cabinet body. An air guide pipe passing through the top plate is provided at the air outlet end of the heat dissipation fan. A flow dividing air pipe is fixedly arranged at the lower end of the air guide pipe. Two air outlet components are symmetrically arranged on both sides of the flow dividing air pipe. A pre-cooling component for pre-cooling the air is provided above the cabinet body. A plurality of ventilation components are provided on both sides of the cabinet body. A plurality of smoke and temperature composite detectors are provided on the inner wall of the cabinet body. A plurality of rapid cooling components electrically connected to the smoke and temperature composite detectors are provided inside the cabinet body. An alarm is provided on the cabinet body, and the alarm is electrically connected to the smoke and temperature composite detectors; The air outlet component includes an air outlet pipe, an empty slot, and a first driving block. The top end of the air outlet pipe is rotatably connected to both ends of the shunt air pipe, and the air outlet pipe is communicated with the shunt air pipe. A plurality of air outlet holes are provided on the air outlet pipe. A first driven block is provided at the top end of the air outlet pipe. The front end of the first driving block is located inside the empty slot, and the first driving block meshes with the first driven block. The rear end of the first driving block is rotatably provided with a fixing frame, and the fixing frame is fixed to the rear end of the cabinet body. A guiding groove is provided on one side of the first driving block. A first motor and a moving block are provided between the two first driving blocks. The first motor is fixed above the moving block. Guiding blocks capable of sliding inside the guiding groove are provided at both ends of the moving block. A sliding groove is provided in the middle part of the moving block. A rotating block is provided at the output end of the first motor, and a sliding block penetrating the sliding groove is provided at the lower end of the rotating block; The ventilation component includes ventilation holes, a frame, and a positioning seat. A plurality of the ventilation holes are respectively located on both sides of the cabinet body. The positioning seat is fixed on the outer wall of the cabinet body and is located outside the ventilation holes. The frame is fixed on the positioning seat, and a dust-proof plate is provided on the frame; The rapid cooling component includes a lifting plate, a second coolant storage tank, a driving screw rod, and a second motor. The top end of the driving screw rod penetrates the top plate, and the position of the driving screw rod is fixed. A limiting seat is provided at the lower end of the top plate. The top end of the driving screw rod penetrates the limiting seat and the top plate, and the driving screw rod is rotatably connected to the top plate. A second driven block is fixedly provided at the top end of the driving screw rod. The second motor is fixed on the upper end of the top plate. A second driving block is provided at the output end of the second motor, and the second driving block meshes with the second driven block. A moving seat penetrated by the driving screw rod is provided at the rear end of the lifting plate. The driving screw rod is in threaded connection with the moving seat, and the moving seat can move up and down on the inner wall of the cabinet body. The second coolant storage tank is fixed to the front end of the lifting plate. A second spray head is provided at the lower end of the second coolant storage tank, and a second valve is provided on the second spray head. The second motor and the second valve are respectively electrically connected to the smoke and temperature composite detector.

[0005] In order to provide a pre-cooling effect for the air before it enters the cabinet body, the improvement of the present invention is that the pre-cooling component includes a first coolant storage tank, a conical sleeve, a conical cylinder, and a circular frame. The circular frame is fixed on the periphery of the air inlet hole. The first coolant storage tank is fixed above the circular frame. The conical sleeve is fixed below the first coolant storage tank. A first spray head located inside the conical sleeve is provided at the lower end of the first coolant storage tank. A first valve is provided at the upper end of the first spray head. The conical cylinder is fixed below the conical sleeve through a support rod and is located above the circular frame. A protective shell is provided at the rear end of the cabinet body. The first motor and the moving block are both located inside the protective shell.

[0006] In order to facilitate the adjustment of the angle of the air outlet pipe, the improvement of the present invention is that sealing bearings are inlaid at both ends of the shunt air pipe, the top end of the air outlet pipe penetrates through the sealing bearings, a base fixed to the bottom of the cabinet is provided below the air outlet pipe, an adjustable bottom rod is threadedly connected inside the base, a bottom groove is provided inside the adjustable bottom rod, the lower end of the air outlet pipe is inserted into the inside of the bottom groove, and the bottom end of the air outlet pipe can rotate inside the bottom groove.

[0007] In order to facilitate the cleaning of the dust-proof plate, the improvement of the present invention is that a reinforcing frame is fixedly arranged inside the frame, the reinforcing frame is located inside the dust-proof plate, a cavity is provided in the middle part of the reinforcing frame, a cleaning rod is provided on the outer surface of the dust-proof plate, a positioning rod is provided on the inner surface of the dust-proof plate, a connecting shaft passing through the cavity is provided between the positioning rod and the cleaning rod, a clamping groove is provided in the middle part of the positioning rod, and a plurality of third motors are fixedly arranged on the inner wall of the cabinet, and a clamping block matched with the clamping groove is provided at the output end of the third motor.

[0008] Furthermore, the improvement of the present invention is that an elastic rod is fixedly arranged on one side of the frame, support plates are rotatably arranged at both ends of the elastic rod, the support plates are fixed on the outer wall of the cabinet, an elastic rod is fixedly arranged on one side of the positioning seat, and one end of the elastic rod contacts the side of the frame far from the elastic rod, and the elastic rod is used to limit the frame.

[0009] In order to improve the safety factor of the present structure during use, the improvement of the present invention is that a fire extinguishing component is further provided inside the cabinet, the fire extinguishing component includes a fire extinguishing agent storage tank, the fire extinguishing agent storage tank is fixed on the inner wall of the cabinet, a plurality of third nozzles are provided on the fire extinguishing agent storage tank, and a plurality of third valves electrically connected to the smoke and temperature composite detector are provided on the third nozzles.

[0010] Furthermore, the improvement of the present invention is that the first valve, the second valve and the third valve all adopt solenoid valves, and the first motor and the second motor both adopt servo motors.

[0011] Furthermore, the improvement of the present invention is that the first driven block, the second driving block and the second driving block are all circular, the first driving block is fan-shaped, the elastic rod is arc-shaped, and the moving seat is rectangular.

[0012] Furthermore, the improvement of the present invention is that the base, the protective shell, the smoke and temperature composite detector and the third motor are respectively fixed at designated positions on the cabinet by screws.

[0013] Furthermore, the improvement of the present invention is that a filter block is provided inside the air inlet hole, and the filter block is bonded inside the air inlet hole.

[0014] Compared with the prior art, the present invention provides an electrical cabinet with a high heat dissipation coefficient, having the following beneficial effects: Multi-angle wind coverage: The air outlet component drives the rotating block and slider mechanism through the first motor, driving the air outlet pipe to swing reciprocally within the range of 45° - 90°, and cooperating with the shunt air pipe to evenly direct the airflow of the cooling fan to each area of the cabinet body, breaking through the one-way heat dissipation limitation of traditional fixed fans, reducing the surface temperature difference of electrical parts to within 5°C, significantly improving the heat dissipation uniformity, and delaying the aging of insulating materials.

[0015] Pre-cooling efficiency enhancement design: The pre-cooling component is provided with a conical sleeve and a first coolant storage tank around the air inlet hole. By intermittently spraying liquid carbon dioxide (spraying for 5 seconds every 10 minutes), the inlet air temperature is reduced by 10 - 15°C using the principle of heat absorption during vaporization, providing a low-temperature pre-cooling airflow for the electrical parts inside the cabinet. Cooperating with the air outlet component, the average heat dissipation efficiency of the cabinet body is increased by more than 30%.

[0016] Precise regional temperature control: The smoke and temperature composite detector monitors the temperature of each area in real time (the threshold is set at 70°C). When an abnormally high temperature is detected, the emergency cooling component drives the screw through the servo motor and quickly locates to the high-temperature area at a speed of 5 cm / s (the response time of the upper area ≤ 3 seconds, the lower area ≤ 8 seconds). The coolant is sprayed through the liquid nitrogen nozzle at a pressure of 0.5 MPa, achieving a temperature drop of 20 - 30°C within 30 seconds in the local area, effectively curbing the safety hazards caused by sudden overheating of parts.

[0017] Fire warning and suppression: Integrated fire extinguishing component and smoke detection module (smoke threshold 0.15 OD / m). When the detected smoke concentration exceeds the standard and the temperature is abnormal, the third nozzle in the corresponding area is activated within 1 second, spraying liquid carbon dioxide at a pressure of 0.8 MPa, covering a radius of 1 m, and continuously extinguishing the fire until the smoke concentration < 0.05 OD / m or the temperature < 50°C, constructing an integrated safety protection system of "detection - warning - fire extinguishing", reducing the fire risk by more than 60%. Description of the Drawings

[0018] Figure 1 It is a three-dimensional structure schematic diagram of the upper right part of the cabinet body in the present invention when viewed from above; Figure 2 It is a three-dimensional structure schematic diagram of the upper left part of the cabinet body in the present invention when viewed from above; Figure 3 It is a three-dimensional structure schematic diagram of the bottom of the cabinet body in the present invention when viewed from below; Figure 4 For the present invention Figure 1 front view; Figure 5 For the present invention Figure 1Schematic diagram of the partially enlarged structure at location A; Figure 6 For the present invention Figure 1 Schematic diagram of the partially enlarged structure at location B; Figure 7 For the present invention Figure 1 Schematic diagram of the partially enlarged structure at location C; Figure 8 For the present invention Figure 2 Schematic diagram of the partially enlarged structure at location D; Figure 9 For the present invention Figure 3 Schematic diagram of the partially enlarged structure at location E; Figure 10 Schematic diagram of the structure of the rotating block in the present invention; Figure 11 Schematic diagram of the structure of the moving seat in the present invention; Figure 12 Schematic diagram of the assembly structure of the cleaning rod in the present invention; Figure 13 Schematic diagram of the assembly structure of the positioning rod in the present invention; Figure 14 Schematic diagram of the assembly structure of the strengthening frame in the present invention; Figure 15 Schematic diagram of the structure at the air inlet hole in the present invention; In the figure: 1, cabinet body; 2, top plate; 3, heat dissipation fan; 4, fire extinguishing agent storage tank; 5, air duct; 6, shunt air duct; 7, air outlet duct; 8, first driven block; 9, first driving block; 10, empty slot; 11, third spray head; 12, fixing frame; 13, moving block; 14, sliding slot; 15, guiding slot; 16, guiding block; 17, first motor; 18, rotating block; 19, adjustable bottom rod; 20, bottom slot; 21, base; 22, air inlet hole; 23, circular frame; 24, conical cylinder; 25, conical sleeve; 26, first coolant storage tank; 27, first valve; 28, protective shell; 29, air exchange hole; 30, smoke and temperature composite detector; 31, frame; 32, elastic rod; 33, positioning shaft; 34, strengthening frame; 35, cleaning rod; 36, positioning rod; 37, third motor; 38, clamping block; 39, dust-proof plate; 40, second motor; 41, second driving block; 42, second driven block; 43, driving screw; 44, lifting plate; 45, second coolant storage tank; 46, second spray head; 47, moving seat. Detailed implementation manners

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0020] Please refer to Figures 1 - 15 , an electrical cabinet with a high heat dissipation coefficient, including a cabinet body 1. A top plate 2 is provided at the top of the cabinet body 1. A heat dissipation fan 3 is fixedly arranged above the top plate 2. A plurality of air inlet holes 22 are provided at the upper end of the cabinet body 1. An air guide pipe 5 penetrating the top plate 2 is provided at the air outlet end of the heat dissipation fan 3. A flow dividing air pipe 6 is fixedly arranged at the lower end of the air guide pipe 5. Two air outlet assemblies are symmetrically arranged on both sides of the flow dividing air pipe 6. A pre-cooling assembly for pre-cooling air is provided above the cabinet body 1. A plurality of ventilation assemblies are provided on both sides of the cabinet body 1. A plurality of smoke and temperature composite detectors 30 are provided on the inner wall of the cabinet body 1. A plurality of rapid cooling assemblies electrically connected to the smoke and temperature composite detectors 30 are provided inside the cabinet body 1. An alarm is provided on the cabinet body 1, and the alarm is electrically connected to the smoke and temperature composite detectors 30; In this structure, the air outlet assembly can provide a wind heat dissipation effect for the electrical components in the cabinet body 1. The air in the cabinet body 1 can be ventilated through the ventilation assembly. The pre-cooling assembly can provide a pre-cooling effect for the air entering the cabinet body 1, which can improve the heat dissipation effect of the air outlet assembly on the electrical components in the cabinet body 1. The temperature of each area in the cabinet body 1 can be detected through the smoke and temperature composite detectors 30. When the temperature in the corresponding area exceeds the specified maximum value, the rapid cooling assembly will move to the specified area, and the high-temperature components in the specified area can be quickly cooled, which can reduce the safety hazards caused by the sudden high temperature of the components, and the safety factor is high; The air outlet component includes an air outlet pipe 7, an empty slot 10, and a first driving block 9. The top end of the air outlet pipe 7 is rotatably connected to both ends of the shunt air pipe 6, and the air outlet pipe 7 is communicated with the shunt air pipe 6. A plurality of air outlet holes are provided on the air outlet pipe 7. A first driven block 8 is provided at the top end of the air outlet pipe 7. The front end of the first driving block 9 is located inside the empty slot 10, and the first driving block 9 meshes with the first driven block 8. The rear end of the first driving block 9 is rotatably provided with a fixing frame 12, and the fixing frame 12 is fixed to the rear end of the cabinet body 1. A guiding groove 15 is provided on one side of the first driving block 9. A first motor 17 and a moving block 13 are provided between the two first driving blocks 9. The first motor 17 is fixed above the moving block 13. Guiding blocks 16 capable of sliding inside the guiding groove 15 are provided at both ends of the moving block 13. A sliding groove 14 is provided in the middle part of the moving block 13. A rotating block 18 is provided at the output end of the first motor 17, and a sliding block penetrating through the sliding groove 14 is provided at the lower end of the rotating block 18; After the cooling fan 3 is started, a plurality of air outlet holes on the air outlet pipe 7 can blow air on the parts inside the cabinet body 1. Here, there are no mandatory regulations on the length of the air outlet pipe 7 and the number of air outlet holes. During this process, when the first motor 17 is started, the rotating block 18 can drive the sliding block to rotate. At this time, the sliding block will reciprocally move inside the sliding groove 14, and then the moving block 13 can be reciprocally pushed forward, enabling the guiding blocks 16 to reciprocally move inside the guiding groove 15, and further enabling the two first driving blocks 9 to reciprocally rotate a short distance on the fixing frame 12. When the first driving block 9 is rotating, since the position of the air outlet pipe 7 is fixed, the first driving block 9 will drive the first driven block 8 to rotate through the meshing action, so that the first driven block 8 can drive the air outlet pipe 7 to rotate a certain angle at both ends of the shunt air pipe 6. The rotation angle can be set between 45 degrees and 90 degrees (the first motor 17 drives the rotating block 18 to rotate, and through the reciprocating sliding of the sliding block inside the sliding groove 14, the moving block 13 is driven to linearly move along the guiding groove 15, and then the first driving block 9 (sector gear) meshes with the first driven block 8 (circular gear) for transmission, realizing the reciprocating swing of the air outlet pipe 7 within the range of 45° - 90°, and the swing frequency is 2 times / minute), which can blow air in multiple directions of the cabinet body 1, enabling the electrical parts inside the cabinet body 1 to dissipate heat more evenly, with high heat dissipation effect, and cooperating with the smoke-temperature composite detector 30 and the rapid cooling component, it can prevent the insulation material inside the cabinet body 1 from aging, so that the electrical parts inside the cabinet body 1 will not cause arc breakdown; The ventilation component includes ventilation holes 29, a frame 31, and a positioning seat. A plurality of the ventilation holes 29 are respectively located on both sides of the cabinet body 1. The positioning seat is fixed on the outer wall of the cabinet body 1 and is located outside the ventilation holes 29. The frame 31 is fixed on the positioning seat, and a dust-proof plate 39 is provided on the frame 31; The ventilation holes 29 can improve the ventilation effect of the cabinet 1. When the wind force outside the cabinet 1 is strong, the dustproof plate 39 can prevent external impurities from blowing into the interior of the cabinet 1 through the ventilation holes 29, making the interior of the cabinet 1 tidier.

[0021] When the dustproof plate 39 is dirty, it needs to be cleaned. A reinforcing frame 34 is fixedly arranged inside the frame 31. The reinforcing frame 34 is located inside the dustproof plate 39. A cavity is arranged in the middle part of the reinforcing frame 34. A cleaning rod 35 is arranged outside the dustproof plate 39. A positioning rod 36 is arranged on the inner surface of the dustproof plate 39. A connecting shaft penetrating the cavity is arranged between the positioning rod 36 and the cleaning rod 35. A card slot is arranged in the middle part of the positioning rod 36. A plurality of third motors 37 are fixedly arranged on the inner wall of the cabinet 1. A card block 38 cooperating with the card slot is arranged at the output end of the third motor 37. When the third motor 37 is started, the card block 38 can drive the positioning rod 36 and the cleaning rod 35 to rotate, so that the bristles on the cleaning rod 35 can clean the surface of the dustproof plate 39. In this process, the dustproof plate 39 does not need to be disassembled, which can improve the cleaning efficiency of the dustproof plate 39.

[0022] Furthermore, an elastic rod 32 is fixedly provided on one side of the frame 31, and support plates are rotatably provided at both ends of the elastic rod 32, and the support plates are fixed on the outer wall of the cabinet 1. An elastic rod 32 is fixedly provided on one side of the positioning seat, and one end of the elastic rod 32 contacts the side of the frame 31 away from the elastic rod 32. The elastic rod 32 is used to limit the frame 31, and the elastic energy of the elastic rod 32 can limit the frame 31 on the positioning seat. The dustproof plate 39 can be bonded to the frame 31. When the dustproof plate 39 needs to be replaced, the third motor 37 is first disassembled to disengage the card block 38 from the card slot, and then the elastic rod 32 is moved to flip the frame 31 on the positioning seat. The structure is simple and the operation is convenient.

[0023] The quenching assembly includes a lifting plate 44, a second coolant storage tank 45, a driving screw 43, and a second motor 40. The top end of the driving screw 43 penetrates through the top plate 2, and the position of the driving screw 43 is fixed. A limit seat is provided at the lower end of the top plate 2. The top end of the driving screw 43 penetrates through the limit seat and the top plate 2, and the driving screw 43 is rotatably connected to the top plate 2. A second driven block 42 is fixedly provided at the top end of the driving screw 43. The second motor 40 is fixed to the upper end of the top plate 2, and a second driving block 41 is provided at the output end of the second motor 40. The second driving block 41 meshes with the second driven block 42. A moving seat 47 penetrated by the driving screw 43 is provided at the rear end of the lifting plate 44. The driving screw 43 is threadedly connected to the moving seat 47, and the moving seat 47 can move up and down on the inner wall of the cabinet body 1. The second coolant storage tank 45 is fixed to the front end of the lifting plate 44. A second spray head 46 is provided at the lower end of the second coolant storage tank 45. A second valve is provided on the second spray head 46. The second motor 40 and the second valve are respectively electrically connected to the flue gas temperature composite detector 30; In this structure, the number of smoke and temperature composite detectors 30 is not specified. When the smoke and temperature composite detectors 30 in a specified area detect an abnormal high temperature exceeding the rated value, they will transmit the danger information to the alarm on the cabinet body 1. The alarm will send an alarm message to the specified monitoring device, enabling the staff to promptly detect the situation on-site. Moreover, the second motor 40 and the second valve will be started successively. The second motor 40 can be started for a specified time. At this time, the second driving block 41 drives the second driven block 42 to rotate through meshing, and then the driving screw 43 can be rotated. Since the position of the driving screw 43 is fixed, through the action of the thread structure, the moving seat 47 can descend along the driving screw 43 to a specified position. Then the second valve is started. After the second valve is started, the liquid coolant in the second coolant storage tank 45 can be ejected. After the liquid coolant is ejected at the second nozzle 46, it will immediately vaporize, thereby absorbing a large amount of heat in the specified area, providing a rapid cooling effect to the specified area, and quickly dissipating the heat of the high-temperature electrical components. The heat dissipation speed is fast. When the smoke and temperature composite detector 30 detects that the temperature in the specified area has returned to the normal temperature, the second valve can be closed. At this time, the second motor 40 is started again for a specified time, and then the lifting plate 44 can be reset. It should be noted here that the control circuit between the smoke and temperature composite detector 30, the second valve, and the second motor 40 is similar to the circuit connection between the temperature control module and the air outlet component in the air conditioning system, and there is no need to describe its control circuit in detail here. The control parameters of the smoke and temperature composite detectors 30 in different areas for the second motor 40 are also different. For example, when the smoke and temperature composite detector 30 in the upper area of the cabinet body 1 controls the second motor 40, the starting time of the second motor 40 will be 3 - 5 seconds. When the smoke and temperature composite detector 30 in the lower area of the cabinet body 1 controls the second motor 40, the starting time of the second motor 40 will be 5 - 8 seconds. Thus, the lifting plate 44 can drive the second coolant storage tank 45 to move to the area corresponding to the smoke and temperature composite detector 30. The temperature threshold of the smoke and temperature composite detector 30 is set at 70°C (30°C higher than the normal operating temperature of the cabinet body 1). When the detected area temperature ≥ 70°C: In the upper area of the cabinet body 1 (0 - 50 cm below the top plate 2): The second motor 40 starts for 3 seconds, and the lifting plate 44 is driven to descend at a speed of 5 cm / s to the corresponding height; In the lower area of the cabinet body 1 (0 - 50 cm above the base 21): The second motor 40 starts for 8 seconds, and the descending speed is 5 cm / s; The second nozzle 46 sprays liquid nitrogen with a spraying pressure of 0.5 MPa and a single spraying duration of 10 seconds, which can reduce the temperature of the local area by 20 - 30°C within 30 seconds.

[0024] In order to provide a pre-cooling effect for the air before it enters the interior of the cabinet 1, the pre-cooling assembly includes a first coolant storage tank 26, a tapered sleeve 25, a tapered cylinder 24, and a circular frame 23. The circular frame 23 is fixed on the periphery of the air inlet hole 22. The first coolant storage tank 26 is fixed above the circular frame 23. The tapered sleeve 25 is fixed below the first coolant storage tank 26. A first spray head is provided at the lower end of the first coolant storage tank 26 and is located inside the tapered sleeve 25. A first valve 27 is provided at the upper end of the first spray head. The tapered cylinder 24 is fixed below the tapered sleeve 25 by a support rod and is located above the circular frame 23. A protective shell 28 is provided at the rear end of the cabinet 1. The first motor 17 and the moving block 13 are both located inside the protective shell 28; In this structure, through the provided circular frame 23, it is possible to prevent debris at the top of the cabinet 1 from flowing into the air inlet hole 22. Through the provided tapered cylinder 24, it is possible to prevent the coolant inside the first coolant storage tank 26 from directly spraying into the air inlet hole 22. During the startup process of the cooling fan 3, the first valve 27 will be intermittently opened, enabling the coolant in the first coolant storage tank 26 to be intermittently sprayed out at the first spray head. After the liquid coolant is sprayed out at the first spray head, it will immediately vaporize in the area inside the tapered sleeve 25, thereby being able to absorb a large amount of heat in the air near the specified air inlet hole 22. The first valve 27 adopts an intermittent opening mode, with an opening frequency of once every 10 minutes and a duration of 5 seconds each time, causing the coolant (liquid carbon dioxide) to be atomized and quickly vaporize inside the tapered sleeve 25, absorbing the heat of the air near the air inlet hole 22. The pre-cooled air enters the cabinet 1 through the air inlet hole 22, reducing the inlet air temperature of the cabinet 1 by 10 - 15 °C, which can further improve the heat dissipation effect of the air outlet assembly on the components inside the cabinet 1.

[0025] In this structure, both ends of the shunt air duct 6 are inlaid with sealed bearings. The top end of the air outlet duct 7 penetrates through the sealed bearings. Below the air outlet duct 7, there is a base 21 fixed to the bottom of the cabinet 1. Inside the base 21, an adjustable bottom rod 19 is threadedly connected. Inside the adjustable bottom rod 19, there is a bottom groove 20. The lower end of the air outlet duct 7 is inserted into the inside of the bottom groove 20, and the bottom end of the air outlet duct 7 can rotate inside the bottom groove 20. When assembling the air outlet duct 7, first insert the bottom end of the air outlet duct 7 into the bottom groove 20 and rotate the adjustable bottom rod 19, which can cause the adjustable bottom rod 19 to rise inside the base 21, and then the air outlet duct 7 can rise. After the air outlet duct 7 rises, the top end of the air outlet duct 7 will penetrate through the sealed bearings, thereby facilitating the assembly of the air outlet duct 7.

[0026] In this structure, a fire extinguishing component is further provided inside the cabinet body 1. The fire extinguishing component includes a fire extinguishing agent storage tank 4 which is fixed on the inner wall of the cabinet body 1. A plurality of third nozzles 11 are provided on the fire extinguishing agent storage tank 4, and a plurality of third valves electrically connected to the smoke and temperature composite detector 30 are provided on the third nozzles 11. The smoke and temperature composite detector 30 can detect both smoke and temperature. When the smoke detection module on the smoke and temperature composite detector 30 detects the generation of smoke in a specified area (the smoke detection threshold is set to 0.15 OD / m (light attenuation rate), when the detected smoke concentration ≥ 0.15 OD / m and the temperature ≥ 70 °C, the third valve (solenoid valve) in the corresponding area opens within 1 second, and the third nozzle 11 sprays the fire extinguishing agent (liquid carbon dioxide) at a pressure of 0.8 MPa, and the spraying coverage range is a 1 m radius area centered on the nozzle, and continues to spray until the smoke concentration < 0.05 OD / m or the temperature < 50 °C), it will cause the third valve to open through an electrical signal, enabling the third nozzle 11 in the smoke area to spray the fire extinguishing agent towards the smoke area, capable of extinguishing fire in a specified area inside the cabinet body 1, and further improving the safety factor of this structure during use. In this structure, the coolant in the first coolant storage tank 26 and the fire extinguishing agent in the fire extinguishing agent storage tank 4 can both be liquid carbon dioxide, and the coolant in the second coolant storage tank 45 can be liquid nitrogen.

[0027] Furthermore, the first valve 27, the second valve, and the third valve can all be solenoid valves. The solenoid valve can be connected to a computer to achieve automated control, improve production efficiency and quality. The solenoid valve itself has a simple structure, is easier to install and maintain than other types of actuators such as regulating valves, and has a fast response speed. The first motor 17 and the second motor 40 are both servo motors. The servo motor has high-precision closed-loop control and can achieve very precise positioning and motion control.

[0028] Furthermore, the first driven block 8, the second driving blocks 41, and the second driving block 41 are all circular, the first driving block 9 is fan-shaped, the elastic rod 32 is arc-shaped, and the moving seat 47 is rectangular.

[0029] Furthermore, the base 21, the protective shell 28, the smoke and temperature composite detector 30, and the third motor 37 are respectively fixed at specified positions on the cabinet body 1 by screws. The screw fixing method has the advantage of convenient assembly.

[0030] Furthermore, a filter block is provided inside the air inlet hole 22, and the filter block is bonded inside the air inlet hole 22. By providing the filter block, it is possible to prevent external impurities from floating inside the air inlet hole 22. The bonding method has the advantage of convenient assembly and enables the filter block to be easily assembled.

[0031] In the description herein, it should be noted that relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises", "comprising", or any other variation thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions, and variations can be made in these embodiments without departing from the principles and spirit of the invention, and the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An electrical cabinet with a high heat dissipation coefficient, comprising a cabinet body (1), characterized in that: A top plate (2) is provided at the top of the cabinet body (1). A heat dissipation fan (3) is fixedly arranged above the top plate (2). A plurality of air inlet holes (22) are provided at the upper end of the cabinet body (1). An air guide pipe (5) penetrating through the top plate (2) is provided at the air outlet end of the heat dissipation fan (3). A flow dividing air pipe (6) is fixedly arranged at the lower end of the air guide pipe (5). Two air outlet assemblies are symmetrically arranged on both sides of the flow dividing air pipe (6). A pre-cooling assembly for pre-cooling air is provided above the cabinet body (1). A plurality of air exchange assemblies are provided on both sides of the cabinet body (1). A plurality of smoke and temperature composite detectors (30) are provided on the inner wall of the cabinet body (1). A plurality of rapid cooling assemblies electrically connected to the smoke and temperature composite detectors (30) are provided inside the cabinet body (1). An alarm is provided on the cabinet body (1), and the alarm is electrically connected to the smoke and temperature composite detectors (30). The air outlet assembly includes an air outlet pipe (7), an empty slot (10), and a first driving block (9). The top end of the air outlet pipe (7) is rotatably connected to both ends of the flow dividing air pipe (6), and the air outlet pipe (7) is communicated with the flow dividing air pipe (6). A plurality of air outlet holes are provided on the air outlet pipe (7). A first driven block (8) is provided at the top end of the air outlet pipe (7). The front end of the first driving block (9) is located inside the empty slot (10), and the first driving block (9) is engaged with the first driven block (8). The rear end of the first driving block (9) is rotatably provided with a fixing frame (12), and the fixing frame (12) is fixed to the rear end of the cabinet body (1). A guiding slot (15) is provided on one side of the first driving block (9). A first motor (17) and a moving block (13) are provided between the two first driving blocks (9). The first motor (17) is fixed above the moving block (13). Guiding blocks (16) capable of sliding inside the guiding slot (15) are provided at both ends of the moving block (13). A sliding slot (14) is provided in the middle part of the moving block (13). A rotating block (18) is provided at the output end of the first motor (17), and a sliding block penetrating through the sliding slot (14) is provided at the lower end of the rotating block (18).

2. The electrical cabinet with a high heat dissipation coefficient according to claim 1, wherein: The air exchange assembly includes air exchange holes (29), a frame (31), and a positioning seat. A plurality of air exchange holes (29) are respectively located on both sides of the cabinet body (1). The positioning seat is fixed on the outer wall of the cabinet body (1) and is located outside the air exchange holes (29). The frame (31) is fixed to the positioning seat, and a dust-proof plate (39) is provided on the frame (31). The quenching assembly includes a lifting plate (44), a second coolant storage tank (45), a driving screw (43), and a second motor (40). The top end of the driving screw (43) penetrates through the top plate (2). The position of the driving screw (43) is fixed. A limit seat is provided at the lower end of the top plate (2). The top end of the driving screw (43) penetrates through the limit seat and the top plate (2). The driving screw (43) is rotatably connected to the top plate (2). A second driven block (42) is fixedly provided at the top end of the driving screw (43). The second motor (40) is fixed to the upper end of the top plate (2). A second driving block (41) is provided at the output end of the second motor (40). The second driving block (41) meshes with the second driven block (42). A moving seat (47) penetrated by the driving screw (43) is provided at the rear end of the lifting plate (44). The driving screw (43) is threadedly connected to the moving seat (47), and the moving seat (47) can move up and down on the inner wall of the cabinet body (1). The second coolant storage tank (45) is fixed to the front end of the lifting plate (44). A second spray head (46) is provided at the lower end of the second coolant storage tank (45). A second valve is provided on the second spray head (46). The second motor (40) and the second valve are respectively electrically connected to the flue gas temperature composite detector (30).

3. The electrical cabinet with high heat dissipation coefficient according to claim 2, characterized in that: The pre-cooling assembly includes a first coolant storage tank (26), a tapered sleeve (25), a tapered cylinder (24), and a circular frame (23). The circular frame (23) is fixed to the periphery of the air inlet hole (22). The first coolant storage tank (26) is fixed above the circular frame (23). The tapered sleeve (25) is fixed below the first coolant storage tank (26). A first spray head located inside the tapered sleeve (25) is provided at the lower end of the first coolant storage tank (26). A first valve (27) is provided at the upper end of the first spray head. The tapered cylinder (24) is fixed below the tapered sleeve (25) through a support rod, and the tapered cylinder (24) is located above the circular frame (23). A protective shell (28) is provided at the rear end of the cabinet body (1). The first motor (17) and the moving block (13) are both located inside the protective shell (28).

4. The electrical cabinet with a high heat dissipation coefficient according to claim 3, characterized in that: Sealing bearings are inlaid at both ends of the shunt air duct (6). The top end of the air outlet pipe (7) penetrates through the sealing bearings. A base (21) fixed to the bottom of the cabinet body (1) is provided below the air outlet pipe (7). An adjustable bottom rod (19) is threadedly connected inside the base (21). A bottom groove (20) is provided inside the adjustable bottom rod (19). The lower end of the air outlet pipe (7) is inserted into the inside of the bottom groove (20), and the bottom end of the air outlet pipe (7) can rotate inside the bottom groove (20).

5. The electrical cabinet with high heat dissipation coefficient according to claim 4, wherein: A reinforcing frame (34) is fixedly arranged inside the frame (31). The reinforcing frame (34) is located inside the dust-proof plate (39). A cavity is provided in the middle part of the reinforcing frame (34). A cleaning rod (35) is provided on the outer surface of the dust-proof plate (39). A positioning rod (36) is provided on the inner surface of the dust-proof plate (39). A connecting shaft passing through the cavity is provided between the positioning rod (36) and the cleaning rod (35). A clamping groove is provided in the middle part of the positioning rod (36). A plurality of third motors (37) are fixedly arranged on the inner wall of the cabinet body (1). A clamping block (38) matched with the clamping groove is provided at the output end of the third motor (37).

6. The electric cabinet with a high heat dissipation coefficient according to claim 5, characterized in that: An elastic rod (32) is fixedly arranged on one side of the frame (31). Support plates are rotatably arranged at both ends of the elastic rod (32). The support plates are fixed on the outer wall of the cabinet body (1). An elastic rod (32) is fixedly arranged on one side of the positioning seat. One end of the elastic rod (32) contacts the side of the frame (31) away from the elastic rod (32). The elastic rod (32) is used to limit the frame (31).

7. The electrical cabinet with a high heat dissipation coefficient according to claim 6, characterized in that: A fire extinguishing assembly is further provided inside the cabinet body (1). The fire extinguishing assembly includes a fire extinguishing agent storage tank (4). The fire extinguishing agent storage tank (4) is fixed on the inner wall of the cabinet body (1). A plurality of third nozzles (11) are provided on the fire extinguishing agent storage tank (4). A plurality of third valves electrically connected to the smoke and temperature composite detector (30) are provided on the third nozzles (11).

8. An electrical cabinet with a high heat dissipation coefficient according to claim 7, characterized in that: The first valve (27), the second valve, and the third valve all adopt solenoid valves. The first motor (17) and the second motor (40) both adopt servo motors.

9. The electrical cabinet with high heat dissipation coefficient according to claim 8, characterized in that: The first driven block (8), the second driving block (41), and the second driving block (41) are all circular. The first driving block (9) is fan-shaped. The elastic rod (32) is arc-shaped. The moving seat (47) is rectangular.

10. The electrical cabinet with high heat dissipation coefficient according to claim 9, characterized in that: The base (21), the protective shell (28), the smoke and temperature composite detector (30), and the third motor (37) are respectively fixed at designated positions on the cabinet body (1) by screws.

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