Constant temperature type heat dissipation electrical control cabinet

Abstract

The invention relates to the technical field of electrical control cabinets, in particular to a constant temperature type heat dissipation electrical control cabinet which comprises a cabinet body, a condenser is installed on the outer side of the cabinet body, two filter screen frames corresponding to the condenser in position are installed on the outer side of the cabinet body, and an air filter assembly is inserted into an inner cavity of each filter screen frame. A temperature controller and a humidity sensor are installed on the top of an inner cavity of the cabinet body, an evaporator is installed in the inner cavity of the cabinet body, a drying mechanism corresponding to the evaporator in position is installed in the inner cavity of the cabinet body, and the drying mechanism comprises two partition plates installed in the inner cavity of the cabinet body. Compared with the prior art, the electrical control cabinet has the advantages that the structural design is reasonable, air in the electrical control cabinet can be subjected to effective circulating flow and heat absorption cooling treatment conveniently, the air can be dried conveniently, the drying efficiency is improved, and the service life of the electrical control cabinet is prolonged. And the use effect is effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of electric control cabinets, and in particular to a constant temperature heat dissipation electric control cabinet. Background Art

[0002] The electrical control cabinet is a cabinet made of steel to protect the normal operation of components. The materials used to make electrical cabinets are generally divided into two types: hot-rolled steel plates and cold-rolled steel plates. Cold-rolled steel plates are softer than hot-rolled steel plates and are more suitable for the production of electrical cabinets. Electrical cabinets are widely used and are mainly used in the chemical industry, environmental protection industry, power system, metallurgical system, industry, nuclear power industry, fire safety monitoring, and transportation industry.

[0003] Defects and shortcomings of the existing technology: Traditional electrical control cabinets use air cooling and window opening to dissipate heat. However, when this heat dissipation method is in a high-temperature environment, the air entering the electrical control cabinet has poor heat dissipation efficiency, and insufficient heat dissipation can easily cause overheating inside the electrical control cabinet. Window heat dissipation also brings in dust and rainwater, causing dust and water to collect inside the electrical control cabinet, which can easily cause short circuits on circuit boards and pins of electronic components. For this reason, we provide a constant temperature heat dissipation electrical control cabinet to solve this problem. Summary of the invention

[0004] The purpose of the present invention is to overcome the defects in the prior art and provide a constant temperature heat dissipation electrical control cabinet.

[0005] To achieve the above-mentioned purpose, the technical solution of the present invention is to design a constant temperature heat dissipation electrical control cabinet, including a cabinet, a condenser is installed on the outside of the cabinet, two sets of filter racks corresponding to the positions of the condensers are installed on the outside of the cabinet, an air filter assembly is plugged into the inner cavity of the filter rack, a thermostat and a humidity sensor are installed on the top of the inner cavity of the cabinet, an evaporator is installed in the inner cavity of the cabinet, and a drying mechanism corresponding to the position of the evaporator is installed in the inner cavity of the cabinet; The drying mechanism includes two partitions installed in the inner cavity of the cabinet, an upper end of one partition and a lower end of the other partition are both provided with an air inlet, a lower end of one partition and an upper end of the other partition are both provided with an exhaust port, and a drying component is provided in each of the air inlets.

[0006] Furthermore, the evaporator includes two aluminum plate fins installed in the inner cavity of the cabinet, and evaporation heat exchange tubes are installed in the aluminum plate fins. The two ends of the evaporation heat exchange tubes are respectively connected to the liquid outlet and air inlet of the condenser, and fans are installed at the upper end of one of the aluminum plate fins and the lower end of one of the aluminum plate fins.

[0007] Furthermore, the drying component includes a groove connected to the air inlet, a servo motor is installed in the inner cavity of the groove, the output end of the servo motor is connected to the positive and negative screw rods, the outer sides of the positive and negative screw rods are screwed with two threaded blocks, the outer sides of the threaded blocks are connected to the fixed blocks, the lower ends of the fixed blocks are connected to the fixed frames, the inner cavity of the fixed frame is plugged with a drying cotton board, the outer side of the drying cotton board is installed with a magnetic frame, the fixed frame is made of magnetic metal material, and the fixed frame and the magnetic frame are magnetically attracted to each other.

[0008] A further preferred technical solution is that limiting grooves are provided on both sides of the inner cavity of the air inlet, and limiting blocks that are slidably connected with the limiting grooves are provided on both sides of the fixing frame.

[0009] A further preferred technical solution is that two mounting blocks are installed in the inner cavity of the exhaust port, and the outer sides of the mounting blocks are screwed to the filter cotton core plate.

[0010] A further preferred technical solution is that the cabinet comprises an outer shell and an inner shell, wherein the inner shell is arranged inside the outer shell, and an insulating asbestos board is equidistantly inserted between the outer shell and the inner shell.

[0011] A further preferred technical solution is that ceramic support bars are equidistantly installed between the outer shell and the inner shell, the ceramic support bars are located between the thermal insulation asbestos boards, and the ceramic support bars are hyperbolic strip structures.

[0012] A further preferred technical solution is that the air filter assembly includes a filter cotton plate inserted in the inner cavity of the filter frame, a magnetic plate is installed on the outside of the filter cotton plate, a handle is installed on the outside of the magnetic plate, the filter frame is made of magnetic metal material, and the magnetic plate and the filter frame are magnetically attracted to each other.

[0013] The advantages and beneficial effects of the present invention are as follows: 1. The air in the inner cavity of the cabinet is sucked into the space between the partition and the evaporator through the air inlet in the partition by the fan, and the condenser is started, and the compressor in the condenser liquefies the gas in the evaporative heat exchange tube, and the refrigerant releases heat after liquefaction, and at the same time, the refrigerant liquid in the condenser enters the evaporative heat exchange tube due to the pressure reduction, so that the refrigerant liquid vaporizes and absorbs heat in the evaporative heat exchange tube, and then the aluminum plate fin absorbs heat and cools the air entering between the partition and the aluminum plate fin, and then the cooled air is discharged through the exhaust port in the partition, so that the cabinet The air in the inner cavity is effectively circulated under the action of the upper and lower fans, which is convenient for effectively improving the effect of heat absorption and cooling of the air in the inner cavity of the cabinet. A temperature threshold is set by the thermostat. When the air in the inner cavity of the cabinet is higher than this temperature threshold, the condenser and the fan are started to cool down. When the temperature is lower than this temperature threshold, the condenser and the fan are automatically shut down to stop working, which is convenient for saving energy and preventing the temperature from being too low to affect the electrical components installed in the cabinet. The air humidity in the inner cavity of the cabinet is effectively controlled by the drying mechanism to avoid affecting the service life of the electrical components. 2. The designed filter cotton plate can effectively filter the air entering the air inlet of the condenser, which effectively improves the dust protection effect of the condenser. The filter cotton plate is plugged into the filter frame, and the filter frame made of magnetic metal material is magnetically attracted to the magnetic plate, which is convenient for effective magnetic fixation and installation of the filter cotton plate. It is also convenient to pull the magnetic plate and the filter cotton plate through the handle, which effectively improves the convenience of disassembly and assembly of the filter cotton plate. 3. The heat-insulating asbestos board is arranged between the outer shell and the inner shell for heat insulation, so that the electrical control cabinet has the characteristics of heat insulation, and the ceramic support bar is arranged between the outer shell and the inner shell for support, thereby improving the stability of the structure of the electrical control cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic diagram of the three-dimensional structure of a constant temperature heat dissipation electrical control cabinet proposed by the present invention; Figure 2 This is a three-dimensional side structural schematic diagram of a constant temperature heat dissipation electrical control cabinet proposed by the present invention; Figure 3 This is a schematic cross-sectional three-dimensional structural diagram of a constant temperature heat dissipation electrical control cabinet proposed by the present invention; Figure 4 The present invention proposes Figure 4 The enlarged structural diagram of the device in part A; Figure 5 This is a schematic diagram of the three-dimensional structure of an evaporator of a constant temperature heat dissipation electrical control cabinet proposed by the present invention; Figure 6A schematic diagram of the three-dimensional structure of a drying mechanism of a constant temperature heat dissipation electrical control cabinet proposed by the present invention; Figure 7 This is a cross-sectional three-dimensional structural schematic diagram of a partial drying mechanism of a constant temperature heat dissipation electrical control cabinet proposed by the present invention; Figure 8 This is a bottom-up three-dimensional structural schematic diagram of a partial drying mechanism of a constant temperature heat dissipation electrical control cabinet proposed by the present invention; Fig. 9 The present invention is a schematic diagram of the three-dimensional structure of an air filter assembly of a constant temperature heat dissipation electrical control cabinet.

[0015] In the figure: 1. cabinet; 11. outer shell; 12. inner shell; 13. insulation asbestos board; 14. ceramic support strip; 2. cabinet door; 3. condenser; 4. filter rack; 5. air filter assembly; 51. filter cotton board; 52. magnetic board; 53. handle; 6. evaporator; 61. aluminum plate fin; 62. evaporation heat exchange tube; 63. fan; 7. drying mechanism; 71. partition; 72. air inlet; 73. drying assembly; 731. groove; 732. servo motor; 733. positive and negative screw thread screw; 734. threaded block; 735. fixing block; 736. fixing frame; 737. drying cotton board; 738. magnetic frame; 739. limit block; 7310. limit groove; 74. exhaust port; 75. mounting block; 76. filter cotton core board; 8. thermostat; 9. humidity sensor. DETAILED DESCRIPTION

[0016] The specific implementation of the present invention is further described below in conjunction with the accompanying drawings and embodiments. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0017] Reference Figure 1-9 A constant temperature heat dissipation electrical control cabinet comprises a cabinet body 1, a condenser 3 is installed on the outside of the cabinet body 1, two sets of filter racks 4 corresponding to the positions of the condenser 3 are installed on the outside of the cabinet body 1, an air filter assembly 5 is plugged into the inner cavity of the filter rack 4, the air filter assembly 5 comprises a filter cotton plate 51 plugged into the inner cavity of the filter rack 4, a magnetic plate 52 is installed on the outside of the filter cotton plate 51, a handle 53 is installed on the outside of the magnetic plate 52, the filter rack 4 is made of magnetic metal material, and the magnetic plate 52 and the filter rack 4 are magnetically attracted to each other.

[0018] Through the designed filter cotton plate 51, it is convenient to effectively filter the air entering the air inlet of the condenser 3, which is convenient to effectively improve the dust protection effect of the condenser 3, and the filter cotton plate 51 is inserted into the filter frame 4, and the filter frame 4 made of magnetic metal material is magnetically attracted to the magnetic plate 52, which is convenient for effectively magnetically fixing and installing the filter cotton plate 51, and conveniently pulling the magnetic plate 52 and the filter cotton plate 51 through the handle 53, effectively improving the convenience of disassembly and assembly of the filter cotton plate 51.

[0019] A thermostat 8 and a humidity sensor 9 are installed at the top of the inner cavity of the cabinet 1, and an evaporator 6 is installed in the inner cavity of the cabinet 1. The evaporator 6 includes two aluminum plate fins 61 installed in the inner cavity of the cabinet 1. Evaporation heat exchange tubes 62 are installed in the aluminum plate fins 61. The two ends of the evaporation heat exchange tubes 62 are respectively connected to the liquid outlet and the air inlet of the condenser 3. Fans 63 are installed at the upper end of one aluminum plate fin 61 and the lower end of one aluminum plate fin 61.

[0020] The air in the inner cavity of the cabinet 1 is sucked into the space between the partition 71 and the evaporator 6 through the air inlet 72 in the partition 71 by the fan 63. By starting the condenser 3, the compressor inside the condenser 3 liquefies the gas inside the evaporation heat exchange tube 62. The refrigerant releases heat after liquefaction. At the same time, the refrigerant liquid inside the condenser 3 enters the evaporation heat exchange tube 62, and due to the pressure reduction, the refrigerant liquid vaporizes and absorbs heat in the evaporation heat exchange tube 62, thereby causing the aluminum plate fin 61 to absorb heat and cool the air entering between the partition 71 and the aluminum plate fin 61, and then the cooled air is vented. The air is discharged through the exhaust port 74 in the partition 71, so that the air in the inner cavity of the cabinet 1 can be effectively circulated under the action of the upper and lower fans 63, which is convenient for effectively improving the effect of absorbing heat and cooling the air in the inner cavity of the cabinet 1, and a temperature threshold is set by the thermostat 8. When the air in the inner cavity of the cabinet 1 is higher than this temperature threshold, the condenser 3 and the fan 63 are started to cool down. When the temperature is lower than this temperature threshold, the condenser 3 and the fan 63 are automatically turned off and stop working, which is convenient for saving energy and preventing the temperature from being too low to affect the electrical components installed in the cabinet 1.

[0021] The inner cavity of the cabinet 1 is installed with a drying mechanism 7 corresponding to the position of the evaporator 6. The drying mechanism 7 includes two partitions 71 installed in the inner cavity of the cabinet 1. The upper end of one partition 71 and the lower end of the partition 71 are both provided with air inlets 72. The air inlets 72 are both provided with drying components 73. The drying components 73 include a groove 731 connected to the air inlet 72. The inner cavity of the groove 731 is installed with a servo motor 732. The output end of the servo motor 732 is connected to a positive and negative screw thread screw 733. The outer side of the positive and negative screw thread screw 733 is Two threaded blocks 734 are screwed together, and the outer sides of the threaded blocks 734 are connected to the fixed blocks 735. The lower ends of the fixed blocks 735 are connected to the fixed frames 736. The inner cavity of the fixed frame 736 is plugged with a drying cotton plate 737. The outer side of the drying cotton plate 737 is installed with a magnetic frame 738. The fixed frame 736 is made of magnetic metal material. The fixed frame 736 and the magnetic frame 738 are magnetically attracted to each other. Limiting grooves 7310 are set on both sides of the inner cavity of the air inlet 72, and limiting blocks 739 that are slidably connected with the limiting grooves 7310 are set on both sides of the fixed frame 736.

[0022] When the condenser 3 and the fan 63 start to work, the evaporator 6 absorbs heat and cools down, which easily generates moisture, causing the air humidity in the inner cavity of the cabinet 1 to increase, thereby affecting the service life of the electrical components installed in the cabinet 1. The air entering between the partition 71 and the evaporator 6 for heat dissipation is effectively dried by the drying cotton plate 737, which is convenient for effective dehumidification of the circulating air, and effectively controls the humidity of the air in the inner cavity of the cabinet 1 to avoid affecting the service life of the electrical components. The humidity of the air in the cabinet 1 is detected in real time by the humidity sensor 9. When the humidity is higher than the set humidity threshold, the output end of the servo motor 732 drives the positive and negative screw rods 733 to rotate, and the two threaded blocks 734 on the outside of the positive and negative screw rods 733 move in the same direction on their outside, and the threaded blocks 734 drive the fixed blocks 735 to rotate. The fixed frame 736 and the drying cotton board 737 move in the same direction, and then a fixed frame 736 and the drying cotton board 737 in the inner cavity of the air inlet 72 are moved to the groove 731, and the other fixed frame 736 and the drying cotton board 737 in the inner cavity are moved to the inner cavity of the air inlet 72, so as to continue the work of drying the air. At the same time, this information is transmitted to the service terminal through an external controller, so as to inform the staff to replace the drying cotton board 737 in time. When the fixed frame 736 moves, the fixed frame 736 moves stably in the inner cavity of the limiting groove 7310 through the limiting block 739, which effectively improves the up and down movement stability of the fixed frame 736. The drying cotton board 737 is installed in the magnetic frame 738, and the magnetic frame 738 is convenient for magnetic fixation and disassembly with the fixed frame 736, so as to facilitate the installation and replacement of the drying cotton board 737 and facilitate use.

[0023] An exhaust port 74 is provided at the lower end of a partition 71 and the upper end of a partition 71. Two mounting blocks 75 are installed in the inner cavity of the exhaust port 74. The outer sides of the mounting blocks 75 are screwed to the filter cotton core plate 76. When the cooled air is discharged from the exhaust port 74, the air is effectively dust-filtered by the filter cotton core plate 76, thereby effectively improving the air quality in the inner cavity of the cabinet 1 and preventing the dust in the air from affecting the electrical components.

[0024] The cabinet 1 includes an outer shell 11 and an inner shell 12. The inner shell 12 is arranged inside the outer shell 11. Insulating asbestos boards 13 are equidistantly inserted between the outer shell 11 and the inner shell 12. Ceramic support bars 14 are equidistantly installed between the outer shell 11 and the inner shell 12. The ceramic support bars 14 are located between the insulating asbestos boards 13 and are hyperbolic strip structures.

[0025] By designing the outer shell 11 and the inner shell 12, and by arranging the heat insulating asbestos board 13 between the outer shell 11 and the inner shell 12 for heat insulation, the electrical control cabinet has the characteristics of heat insulation, and the ceramic support bar 14 is arranged between the outer shell 11 and the inner shell 12 for support, thereby improving the stability of the structure of the electrical control cabinet.

[0026] Working principle: The present invention is connected to the thermostat 8 and humidity sensor 9 through an external controller, and the thermostat 8 is controlled and connected with the condenser 3, the fan 63 and the servo motor 732. When in use, a temperature threshold is set by the thermostat 8. When the air in the inner cavity of the cabinet 1 is higher than the temperature threshold, the condenser 3 and the fan 63 are started to cool down. The air in the inner cavity of the cabinet 1 is sucked into the space between the partition 71 and the evaporator 6 through the air inlet 72 in the partition 71 by the fan 63. By starting the condenser 3, the compressor inside the condenser 3 liquefies the gas inside the evaporation heat exchange tube 62, and the refrigerant releases heat after liquefaction. At the same time, the refrigerant liquid in the condenser 3 enters the evaporation heat exchange tube 62, and the pressure is reduced, so that the refrigerant liquid evaporates and the refrigerant liquid is cooled. The heat pipe 62 vaporizes and absorbs heat, so that the aluminum plate fin 61 absorbs heat and cools the air entering between the partition 71 and the aluminum plate fin 61, and the cooled air is then discharged through the exhaust port 74 in the partition 71, so that the air in the inner cavity of the cabinet 1 can be effectively circulated under the action of the upper and lower fans 63, which is convenient for effectively improving the heat absorption and cooling effect of the air in the inner cavity of the cabinet 1. When the temperature is lower than this temperature threshold, the condenser 3 and the fan 63 are automatically turned off and stop working, which is convenient for saving energy and preventing the temperature from being too low to affect the electrical components installed in the cabinet 1. When the condenser 3 and the fan 63 start to work, the evaporator 6 absorbs heat and cools down, which is easy to generate moisture, causing the air humidity in the inner cavity of the cabinet 1 to increase, thereby affecting The service life of the electrical components installed in the cabinet 1 is extended, and the air entering between the partition 71 and the evaporator 6 for heat dissipation is effectively dried by the drying cotton board 737, which is convenient for the effective dehumidification operation of the circulating air, and the humidity of the air in the inner cavity of the cabinet 1 is effectively controlled to avoid affecting the service life of the electrical components. The humidity sensor 9 is used to detect the air humidity in the cabinet 1 in real time. When the humidity is higher than the set humidity threshold, the output end of the servo motor 732 drives the positive and negative screw thread screw 733 to rotate, and the two threaded blocks 734 on the outside of the positive and negative screw thread screw 733 move in the same direction on its outside, and the threaded block 734 drives the fixed frame 736 and the drying cotton board 737 toward through the fixed block 735. The fixed frame 736 and the drying cotton board 737 in the inner cavity of the air inlet 72 are moved in the same direction, thereby moving a fixed frame 736 and the drying cotton board 737 in the inner cavity thereof in the inner cavity to the groove 731, and the other fixed frame 736 and the drying cotton board 737 in the inner cavity thereof to the inner cavity of the air inlet 72, so as to continue to dry the air. At the same time, this information is transmitted to the service terminal through an external controller, so as to inform the staff to replace the drying cotton board 737 in time. When the fixed frame 736 moves, the fixed frame 736 moves stably in the inner cavity of the limiting groove 7310 through the limiting block 739, which effectively improves the stability of the up and down movement of the fixed frame 736. The drying cotton board 737 is installed in the magnetic frame 738, and the magnetic frame 738 is convenient for magnetic fixation and disassembly with the fixed frame 736.Therefore, it is convenient to install and replace the drying cotton board 737, and it is easy to use. When the cooled air is discharged from the exhaust port 74, the air is effectively filtered through the filter cotton core plate 76 to effectively improve the air quality of the inner cavity of the cabinet 1 and prevent the dust in the air from affecting the electrical components. The designed filter cotton board 51 is convenient to effectively filter the air entering the air inlet of the condenser 3, which is convenient to effectively improve the dust protection effect of the condenser 3. The filter cotton board 51 is plugged into the filter frame 4, and the filter frame 4 made of magnetic metal material is magnetically attracted to the magnetic plate 52, which is convenient for effectively magnetically fixing and installing the filter cotton board 51, and it is convenient to pull the magnetic plate 52 and the filter cotton board 51 through the handle 53, which effectively improves the convenience of disassembly and assembly of the filter cotton board 51.

[0027] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A constant temperature heat dissipation electrical control cabinet, comprising a cabinet body, characterized in that: A condenser is installed on the outside of the cabinet, two sets of filter racks corresponding to the positions of the condensers are installed on the outside of the cabinet, an air filter assembly is plugged into the inner cavity of the filter rack, a thermostat and a humidity sensor are installed on the top of the inner cavity of the cabinet, an evaporator is installed in the inner cavity of the cabinet, and a drying mechanism corresponding to the position of the evaporator is installed in the inner cavity of the cabinet; The drying mechanism includes two partitions installed in the inner cavity of the cabinet, an upper end of one partition and a lower end of the other partition are both provided with an air inlet, a lower end of one partition and an upper end of the other partition are both provided with an exhaust port, and a drying component is provided in each of the air inlets.

2. A constant temperature heat dissipation electrical control cabinet according to claim 1, characterized in that: The evaporator includes two aluminum plate fins installed in the inner cavity of the cabinet, and evaporation heat exchange tubes are installed in the aluminum plate fins. The two ends of the evaporation heat exchange tubes are respectively connected to the liquid outlet and air inlet of the condenser. Fans are installed at the upper end of one of the aluminum plate fins and the lower end of the other.

3. A constant temperature heat dissipation electrical control cabinet according to claim 1, characterized in that: The drying component includes a groove connected to the air inlet, a servo motor is installed in the inner cavity of the groove, the output end of the servo motor is connected to the positive and negative threaded screw rods, the outer sides of the positive and negative threaded screw rods are screwed with two threaded blocks, the outer sides of the threaded blocks are connected to fixed blocks, the lower ends of the fixed blocks are connected to fixed frames, the inner cavity of the fixed frame is plugged with a drying cotton board, the outer side of the drying cotton board is installed with a magnetic frame, the fixed frame is made of magnetic metal material, and the fixed frame and the magnetic frame are magnetically attracted to each other.

4. A constant temperature heat dissipation electrical control cabinet according to claim 3, characterized in that: Limiting grooves are arranged on both sides of the inner cavity of the air inlet, and limiting blocks slidably connected with the limiting grooves are arranged on both sides of the fixing frame.

5. A constant temperature heat dissipation electrical control cabinet according to claim 1, characterized in that: Two mounting blocks are installed in the inner cavity of the exhaust port, and the outer sides of the mounting blocks are screwed to the filter cotton core plate.

6. A constant temperature heat dissipation electrical control cabinet according to claim 1, characterized in that: The cabinet comprises an outer shell and an inner shell, wherein the inner shell is arranged inside the outer shell, and a heat-insulating asbestos board is inserted between the outer shell and the inner shell at equal distances.

7. A constant temperature heat dissipation electrical control cabinet according to claim 6, characterized in that: Ceramic support bars are installed equidistantly between the outer shell and the inner shell. The ceramic support bars are located between the thermal insulation asbestos boards and are hyperbolic strip structures.

8. A constant temperature heat dissipation electrical control cabinet according to claim 1, characterized in that: The air filter assembly includes a filter cotton plate inserted in the inner cavity of the filter frame, a magnetic plate is installed on the outer side of the filter cotton plate, a handle is installed on the outer side of the magnetic plate, the filter frame is made of magnetic metal material, and the magnetic plate and the filter frame are magnetically attracted to each other.

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