Constant temperature type heat dissipation electrical control cabinet

Abstract

The utility model 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 sets of filter screen frames corresponding to the condenser in position are installed on the outer side of the cabinet body, and air filter assemblies are inserted into inner cavities of the filter screen frames. 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 circular flow and heat absorption cooling treatment conveniently, the drying effect is good, and the service life of the electrical control cabinet is prolonged. And air can be conveniently dried, and the using effect is effectively improved.

Description

Technical Field

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

[0002] Electrical control cabinets are made of steel and are used to protect components. They are generally made of hot-rolled and cold-rolled steel. Cold-rolled steel is softer than hot-rolled steel, making it more suitable for electrical cabinet construction. Electrical cabinets are widely used in the chemical industry, environmental protection, power systems, metallurgy, industry, nuclear power, fire safety monitoring, and transportation.

[0003] Defects and shortcomings of existing technology:

[0004] Traditional electrical control cabinets use air cooling and window opening for heat dissipation. However, when in a high-temperature environment, this heat dissipation method has poor heat dissipation efficiency when the air enters the electrical control cabinet, and insufficient heat dissipation can easily cause overheating inside the electrical control cabinet. At the same time, window cooling also brings in dust and rainwater, causing dust and water to collect inside the electrical control cabinet, which can easily cause short circuits on the pins of circuit boards and electronic components. To this end, we provide a constant temperature heat dissipation electrical control cabinet to solve this problem. Utility Model Content

[0005] The purpose of the utility model is to overcome the defects in the prior art and provide a constant temperature heat dissipation electrical control cabinet.

[0006] To achieve the above-mentioned object, the technical solution of the present utility model is to design a constant temperature heat dissipation electrical control cabinet, comprising a cabinet body, a condenser is mounted on the outside of the cabinet body, two sets of filter racks corresponding to the positions of the condensers are mounted on the outside of the cabinet body, an air filter assembly is plugged into the inner cavity of the filter rack, a thermostat and a humidity sensor are mounted on the top of the inner cavity of the cabinet body, an evaporator is mounted on the inner cavity of the cabinet body, and a drying mechanism corresponding to the position of the evaporator is mounted on the inner cavity of the cabinet body;

[0007] 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.

[0008] 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 ends of the condenser, and fans are installed at the upper end of one of the aluminum plate fins and the lower end of the other.

[0009] 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 threaded screw rod, the outer side of the positive and negative threaded screw rod is 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 frame, the inner cavity of the fixed frame is plugged into the 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.

[0010] 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 in sliding contact with the limiting grooves are provided on both sides of the fixing frame.

[0011] 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.

[0012] 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.

[0013] A further preferred technical solution is 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 the ceramic support bars are hyperbolic strip structures.

[0014] 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.

[0015] The advantages and beneficial effects of the present invention are as follows: 1. The air in the cabinet cavity 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 evaporation heat exchange tube, and the refrigerant releases heat after liquefaction. At the same time, the refrigerant liquid in the condenser enters the evaporation heat exchange tube due to the pressure drop, causing the refrigerant liquid to vaporize and absorb heat in the evaporation heat exchange tube, thereby causing the aluminum plate fins to absorb heat and cool the air entering between the partition and the aluminum plate fins, and then the cooled air is discharged through the exhaust port in the partition, so that the cabinet The air in the cabinet cavity is effectively circulated by the upper and lower fans, which effectively improves the heat absorption and cooling effect of the cabinet cavity air. A temperature threshold is set by the thermostat. When the air in the cabinet cavity is higher than the temperature threshold, the condenser and the fan are started to cool it down. When the temperature is lower than the 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 and affecting the electrical components installed in the cabinet. The air humidity in the cabinet cavity is effectively controlled by the drying mechanism to avoid affecting the service life of the electrical components.

[0016] 2. The designed filter cotton plate facilitates the effective filtration of the air entering the condenser air inlet, which effectively improves the dust protection effect of the condenser. The filter cotton plate is plugged into the filter frame, and the magnetic metal filter frame and the magnetic plate are magnetically attracted to each other, which facilitates the effective magnetic fixation and installation of the filter cotton plate. The magnetic plate and the filter cotton plate can be easily pulled by the handle, which effectively improves the convenience of disassembly and assembly of the filter cotton plate.

[0017] 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 heat preservation, and the ceramic support bar is arranged between the outer shell and the inner shell for support, thereby improving the stability of the electrical control cabinet structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of a constant temperature heat dissipation electrical control cabinet proposed by the utility model;

[0019] Figure 2 This is a schematic diagram of the three-dimensional side structure of a constant temperature heat dissipation electrical control cabinet proposed by the present invention;

[0020] Figure 3 This is a schematic diagram of the cross-sectional three-dimensional structure of a constant temperature heat dissipation electrical control cabinet proposed by the present invention;

[0021] Figure 4 The utility model proposed Figure 4 A schematic diagram of the enlarged structure of the device in part A;

[0022] 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 utility model;

[0023] Figure 6 This is a three-dimensional structural diagram of a drying mechanism of a constant temperature heat dissipation electrical control cabinet proposed by the present invention;

[0024] Figure 7 This is a schematic diagram of a cross-sectional three-dimensional structure of a partial drying mechanism of a constant temperature heat dissipation electrical control cabinet proposed by the present invention;

[0025] Figure 8 This is a bottom-up schematic diagram of the three-dimensional structure of a partial drying mechanism of a constant temperature heat dissipation electrical control cabinet proposed by the present invention;

[0026] Figure 9 This is a schematic diagram of the three-dimensional structure of an air filter assembly of a constant temperature heat dissipation electrical control cabinet proposed by the utility model.

[0027] In the figure: 1. cabinet body; 11. outer shell; 12. inner shell; 13. insulation asbestos board; 14. ceramic support bar; 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. forward and reverse screw rod; 734. threaded block; 735. fixing block; 736. fixing frame; 737. drying cotton board; 738. magnetic frame; 739. limit block; 7310. limit slot; 74. exhaust port; 75. mounting block; 76. filter cotton core board; 8. thermostat; 9. humidity sensor. DETAILED DESCRIPTION

[0028] The following embodiments are used to further describe the specific embodiments of the present invention in conjunction with the accompanying drawings and examples. The following embodiments are only used to more clearly illustrate the technical solutions of the present invention and are not intended to limit the scope of protection of the present invention.

[0029] Reference Figure 1-9 A constant temperature heat dissipation electrical control cabinet includes 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, the inner cavity of the filter rack 4 is plugged with an air filter assembly 5, the air filter assembly 5 includes 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, and 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.

[0030] The designed filter cotton plate 51 facilitates effective filtration of the air entering the air inlet of the condenser 3, thereby effectively improving 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 facilitates the effective magnetic fixation and installation of the filter cotton plate 51, and facilitates the pulling of the magnetic plate 52 and the filter cotton plate 51 by the handle 53, thereby effectively improving the convenience of disassembly and assembly of the filter cotton plate 51.

[0031] A thermostat 8 and a humidity sensor 9 are installed on 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. A fan 63 is installed at the upper end of one aluminum plate fin 61 and the lower end of the other aluminum plate fin 61.

[0032] 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 fan 63 from the air inlet 72 in the partition 71. 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 inside the condenser 3 enters the evaporation heat exchange tube 62, and due to the pressure drop, the refrigerant liquid vaporizes in the evaporation heat exchange tube 62 and absorbs heat, 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 and affecting the electrical components installed in the cabinet 1.

[0033] 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 other partition 71 are both provided with an air inlet 72. A drying component 73 is provided in the air inlet 72. The drying component 73 includes 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 the positive and negative screw rods 733. The outer side of the positive and negative screw rods 733 is connected to the positive and negative screw rods 733. 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 connected with the 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 slide in contact with the limiting grooves 7310 are set on both sides of the fixed frame 736.

[0034] When the condenser 3 and the fan 63 start working, 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 facilitates the effective dehumidification operation of the circulating air, effectively controls the humidity of the air in the inner cavity of the cabinet 1, and avoids 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 forward and reverse screw rods 733 to rotate, and the two threaded blocks 734 on the outside of the forward and reverse screw rods 733 move in the same direction on their outside, and the threaded block 734 drives the fixed block 735 to rotate. The fixed frame 736 and the drying cotton plate 737 move in the same direction, and then a fixed frame 736 and the drying cotton plate 737 in the inner cavity of the air inlet 72 are moved to the groove 731, while the other fixed frame 736 and the drying cotton plate 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 the external controller, so as to inform the staff to replace the drying cotton plate 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 plate 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, thereby facilitating the installation and replacement of the drying cotton plate 737 and facilitating use.

[0035] 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 side of the mounting block 75 is screwed to the filter cotton core plate 76. When the cooled air is discharged from the exhaust port 74, the air is effectively filtered and dust-removed 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.

[0036] 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.

[0037] By designing the outer shell 11 and the inner shell 12, and arranging the insulating asbestos board 13 between the outer shell 11 and the inner shell 12 for heat insulation, this electrical control cabinet has the characteristics of heat insulation and heat preservation, 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 electrical control cabinet structure.

[0038] Working principle: The utility model 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 fan 63 from the air inlet 72 in the partition 71. 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, causing the refrigerant liquid to evaporate. The heat is vaporized and absorbed in the heat exchange tube 62, 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 shut down and stop working, which is convenient for saving energy and preventing the temperature from being too low and affecting the electrical components installed in the cabinet 1. When the condenser 3 and the fan 63 start working, the evaporator 6 is prone to generate moisture when absorbing heat and cooling, which causes 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 affected, 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 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 block 734 drives the fixing frame 736 and the drying cotton board 737 toward through the fixing block 735. The hopper 730 is moved in the same direction, thereby moving a fixed frame 736 and the drying cotton plate 737 in the inner cavity of the air inlet 72 to the groove 731, and the other fixed frame 736 and the drying cotton plate 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 the external controller, so as to inform the staff to replace the drying cotton plate 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 plate 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.This makes it easier to install and replace the drying cotton plate 737 and easier to use. When the cooled air is discharged from the exhaust port 74, the air is effectively filtered and dusted by the filter cotton core plate 76, 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. The designed filter cotton plate 51 facilitates the effective filtration of the air entering the air inlet of the condenser 3, effectively improving the dust protection effect of the condenser 3. The filter cotton plate 51 is plugged into the filter rack 4, and the filter rack 4 made of magnetic metal material is magnetically attracted to the magnetic plate 52, which facilitates the effective magnetic attraction and fixed installation of the filter cotton plate 51. The magnetic plate 52 and the filter cotton plate 51 can be easily pulled by the handle 53, effectively improving the convenience of disassembly and assembly of the filter cotton plate 51.

[0039] 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 within 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 rod, the outer side of the positive and negative threaded screw rod is 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 frame, the inner cavity of the fixed frame is plugged into the 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 provided on both sides of the inner cavity of the air inlet, and limiting blocks that are slidably connected to the limiting grooves are provided on both sides of the fixing frame.

5. The 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 plates.

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. The inner shell is arranged inside the outer shell. Heat-insulating asbestos boards are inserted equidistantly between the outer shell and the inner shell.

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. The 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 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.

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