Air conditioning unit with air cooling and self-adapting constant temperature and humidity

Abstract

The present application relates to air conditioning equipment technical field, specifically to a kind of air-cooled self-adapting constant temperature and humidity air conditioning unit, including air duct component, drive component, defrosting component and heat insulation component;Air duct component is arranged two groups respectively in the front and back of evaporator;Drive component is connected with air duct component;Defrosting component is arranged above evaporator;Heat insulation component is connected with drive component;Through ultrasonic defrosting and reverse cycle defrosting combination, and evaporator is closed to form vertical air duct in defrosting process, frost layer and water vapor will be blown into water collecting tank by the wind of small fan and discharged, ensure that subsequent dehumidification time will not be extended and can be greatly shortened defrosting time, to reduce energy consumption, solve the dehumidification before low temperature and high humidity working condition need first defrosting, and defrosting will lead to humidity rebound to make dehumidification time extend, cause energy consumption to increase problem.

Description

A type of air-cooled adaptive constant temperature and humidity air conditioning unit Technical Field

[0001] This invention relates to the field of air conditioning equipment technology, specifically to an air-cooled adaptive constant temperature and humidity air conditioning unit. Background Technology

[0002] Air-cooled constant temperature and humidity air conditioning units are devices used to regulate and control ambient temperature and relative humidity. Their core functions include cooling, heating, humidification, and dehumidification. They collect data in real time through temperature and humidity sensors and compare it with set values ​​to automatically adjust the operating status of components such as compressors and humidifiers, thereby achieving the effect of controlling temperature and humidity.

[0003] Currently, places with strict temperature and humidity requirements are usually equipped with air-cooled constant temperature and humidity air conditioning units, such as precision electronic component testing rooms, biological culture laboratories, or food and drug warehouses. These units typically perform dehumidification and cooling simultaneously. When only dehumidification is needed, the temperature drops along with the humidity, requiring the electric heater to be restarted to raise the temperature, which increases energy consumption. Existing technology offers a solution to this problem, such as the constant temperature and humidity air conditioning unit and control method described in patent publication number CN103075768B. By setting up an auxiliary heat exchanger, when no temperature adjustment is required, some energy is recovered from the refrigerant flowing through the heat exchanger, and this recovered energy is used to heat the air, thereby improving energy efficiency.

[0004] While existing technologies have solved the problem of increased energy consumption due to temperature drops during dehumidification requiring reheating, the following issues remain: Dehumidification capacity decreases under low-temperature, high-humidity conditions. Because frost forms on the evaporator surface, periodic activation of the electric auxiliary heater is necessary for defrosting. During defrosting, the air conditioning unit needs to switch to reverse circulation to stop dehumidification. During defrosting, the frost on the evaporator fins melts into liquid water, and some of this water evaporates into the air due to the heat released by the high-temperature refrigerant. This causes a humidity rebound, requiring double the dehumidification compensation afterward, further increasing energy consumption.

[0005] In view of the above, in order to overcome the above technical problems, the present invention designs an air-cooled adaptive constant temperature and humidity air conditioning unit. Summary of the Invention

[0006] This invention provides an air-cooled adaptive constant temperature and humidity air conditioning unit, which solves the problem that defrosting is required before dehumidification under low temperature and high humidity conditions. Defrosting causes humidity rebound, prolonging dehumidification time and increasing energy consumption. By setting up an air duct component and a defrosting component, when the temperature is below a certain limit and the humidity is above a certain limit, the circuits of the air duct component, defrosting component, and heat insulation component are connected, and the exhaust fan circuit is disconnected. The heat insulation component opens, allowing the drive component to absorb some heat. At the same time, the air duct seals the area around the evaporator, using a combination of heating and ultrasonic waves for defrosting, shortening the defrosting time and inhibiting evaporation. During the defrosting process, a small fan quickly blows the frost layer into the water collection tank and carries away the water vapor, ensuring that the subsequent dehumidification time is not prolonged and significantly shortening the defrosting time, thereby reducing energy consumption.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A wind-cooled adaptive constant temperature and humidity air conditioning unit includes a casing, an evaporator, a condenser, an exhaust fan, and a compressor; it also includes an air duct assembly, a drive assembly, a defrosting assembly, and a heat insulation assembly; the air duct assembly is provided in two sets, respectively located on the front and rear sides of the evaporator; the drive assembly is connected to the air duct assembly, and during defrosting operation, the drive assembly drives both sets of air duct assemblies to rotate to a closed state; the defrosting assembly is located above the evaporator, and opens when the air duct assembly is in the closed state; the heat insulation assembly is connected to the drive assembly, and opens when the temperature is below a certain limit one, the humidity is above a certain limit two, and reverse circulation is performed.

[0009] Preferably, the air duct assembly includes an air duct slot, an air duct plate, a torsion spring, a small fan, and a water collection tank; the air duct slot is symmetrically opened on the left and right sides of the evaporator; the air duct plate is linearly arrayed and installed in the air duct slot; the torsion spring is connected to the air duct plate; the small fan is installed above the evaporator; and the water collection tank is located below the evaporator.

[0010] In the above solution, during the defrosting process using a reverse circulation system in conjunction with an ultrasonic defroster, the area around the evaporator can be sealed off, preventing the evaporated water vapor from leaving the space formed by the air duct plate. Furthermore, the downward airflow from the small fan can blow both water vapor and water into the water collection tank and discharge them, thus avoiding increased energy consumption due to prolonged dehumidification time.

[0011] Preferably, the small fan and the exhaust fan are connected by an interlock circuit, and the exhaust fan is automatically shut down when the small fan is started.

[0012] In the above scheme, the interlock circuit can automatically shut down the exhaust fan when the small fan is turned on, and automatically shut down the small fan when the exhaust fan is turned on. On the one hand, it can ensure that the airflow is downward during the defrosting stage and horizontal during the normal operation stage, and on the other hand, it can save some electricity.

[0013] Preferably, the upper and lower ends of the air duct plate are provided with sealing slopes, and the sealing slopes at the upper and lower ends are respectively opened on the inner and outer sides of the air duct plate.

[0014] In the above scheme, when two adjacent air duct plates rotate to the closed state, the sealing slope can prevent jamming and friction, and also ensure a better sealing effect, avoiding the decline in sealing effect caused by long-term friction.

[0015] Preferably, the drive assembly includes a heat drive tube, a push rod, a compression spring, a torsion rack, a torsion gear, and a connector; a heat pipe connects the evaporator and the compressor; the heat drive tube is connected to the heat pipe; the push rod is slidably installed inside the heat drive tube; the compression spring is connected between the heat drive tube and the push rod; the torsion rack is slidably installed inside the air duct groove; the torsion gear is connected to the air duct plate and meshes with the torsion rack; and the connector is connected to the torsion rack.

[0016] In the above scheme, the air duct plate is normally kept in the open state under the action of the torsion spring, so that the air can flow smoothly through the evaporator when the exhaust fan is working. When defrosting, the torsion rack drives the air duct plate to rotate through the torsion gear, thereby causing the air duct plate to enter the closed state.

[0017] Preferably, the defrosting assembly includes an ultrasonic defroster and a temperature sensor; the ultrasonic defroster is located on the upper part of the evaporator and is connected in series with a small fan circuit; the temperature sensor is located on the upper part of the evaporator.

[0018] In the above scheme, during reverse circulation, the high-temperature, high-pressure refrigerant will directly enter the evaporator. During the circulation process, some heat will be transferred to the thermally expanding material in the heat drive tube, ensuring that the evaporator temperature does not become too high, causing the frost layer to directly turn into water vapor. At this time, the ultrasonic defroster can completely remove the frost layer. Compared with high-temperature defrosting, it can avoid excessive water vapor. Compared with using ultrasonic defrosting alone, it can avoid the problem of incomplete defrosting and further improve defrosting efficiency, significantly shorten defrosting time, and thus reduce energy consumption.

[0019] Preferably, the thermal insulation component includes a thermal insulation solenoid valve and a humidity sensor; the thermal insulation solenoid valve is located at the connection between the heat drive tube and the heat pipe; the humidity sensor is connected to the outer casing and simultaneously opens the thermal insulation solenoid valve when the temperature sensor detects that the temperature is below a certain limit and the humidity sensor detects that the humidity is above a certain limit.

[0020] In the above scheme, the thermal insulation solenoid valve will only open when the temperature sensor detects that the temperature is below the first threshold for defrosting and the humidity sensor detects that the humidity is above the second threshold. When both conditions are met, the thermal insulation solenoid valve will open, allowing the thermally expanding material in the heat drive tube to absorb heat. During normal heating, the thermal insulation solenoid valve is closed, allowing all the heat from the high-temperature, high-pressure refrigerant to enter the evaporator for heating circulation, ensuring heating efficiency. At this time, the air duct will remain open to ensure normal heating operation. When dehumidification and heating are required simultaneously and the temperature sensor detects that the temperature is below the first threshold for defrosting, dehumidification will be performed first after defrosting, and then heating will begin (and after dehumidification, the humidity sensor's detection condition will not be met, so heating will not trigger the thermal insulation solenoid valve to open). Compared to heating first and then dehumidifying, this avoids the situation where direct heating leads to increased humidity and also avoids the need to restart heating after dehumidification.

[0021] Preferably, the connecting member includes a drive link and a rack link; the drive link is connected between the push rod and the front torsion rack; the front and rear torsion racks of the evaporator are arranged in a mirror image with respect to the evaporator; the rack link is connected between the front and rear torsion racks of the evaporator.

[0022] In the above solution, the connecting parts can simultaneously drive the air duct plates on the front and rear sides of the evaporator to open. Since the two torsion racks are arranged in a mirror image, when the two torsion racks move up and down synchronously, the air duct plates will rotate in opposite directions. At this time, when the air duct plates are open, the two sets of air duct plates can open at opposite angles. That is, the air through the air duct assembly will move downward and then upward or upward and then downward, which prolongs the contact time with the evaporator. This ensures that the working efficiency can be improved in cooling, heating and dehumidification, and the desired effect can be achieved faster, thereby shortening the working time and achieving the purpose of energy saving.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0024] 1. Compared to existing constant temperature and humidity air conditioning units, by setting up an air duct assembly, the air duct plate is closed during the defrosting process to form a vertical air duct, and a small fan is turned on. At this time, the frost layer and water vapor generated on the evaporator will enter the water collection tank under the downward airflow of the small fan, and be smoothly discharged from the air conditioning unit and discharged outdoors. This prevents humidity rebound during the subsequent dehumidification process, ensures dehumidification efficiency, and reduces energy consumption. When the small fan is on, the exhaust fan will be turned off through an interlock circuit to further save energy.

[0025] 2. This invention, by setting up a driving component, can absorb a portion of the heat from the high-temperature refrigerant during defrosting, and use this heat to automatically drive the air duct plate to close. Because a portion of the heat is absorbed, it ensures that the evaporator will not turn most of the frost layer into water vapor due to excessively high surface temperature. Furthermore, when combined with an ultrasonic defroster, the frost layer can be completely removed. Compared to high-temperature defrosting, it avoids the generation of excessive water vapor. Compared to using ultrasonic defrosting alone, it avoids the problem of incomplete defrosting and further improves defrosting efficiency. By significantly shortening the defrosting time, it achieves the goal of reducing energy consumption.

[0026] 3. The upper and lower ends of the duct plate of the present invention are provided with sealing slopes. When two adjacent duct plates are rotated to the closed state, the sealing slopes can prevent jamming and friction, and also ensure a better sealing effect. When the duct plates on the front and rear sides of the evaporator are opened, the angles of deflection are opposite. Under normal working conditions, the air passing through the evaporator will move downward and then upward or upward and then downward, which prolongs the contact time with the evaporator, thereby ensuring that the working efficiency can be improved in cooling, heating and dehumidification, and the desired effect can be achieved faster, thereby shortening the working time and achieving the purpose of energy saving. Attached Figure Description

[0027] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0028] Figure 1 is an overall structural diagram of the present invention;

[0029] Figure 2 is a diagram of the internal structure of the present invention;

[0030] Figure 3 is a schematic diagram of the structure behind the condenser after it has been removed.

[0031] Figure 4 is an enlarged view of the structure at point A in Figure 2;

[0032] Figure 5 is a schematic diagram of the air duct plate installation structure of the present invention;

[0033] Figure 6 is an enlarged view of the structure at point B in Figure 3;

[0034] Figure 7 is a cross-sectional view of the air duct assembly of the present invention;

[0035] Figure 8 is a diagram showing the installation location of the defrosting component of the present invention;

[0036] Figure 9 shows the air duct panel in the open state;

[0037] Figure 10 shows the closed state of the air duct plate;

[0038] In the diagram: 1. Outer shell; 2. Evaporator; 21. Heat pipe; 3. Condenser; 4. Exhaust fan; 5. Compressor; 6. Duct assembly; 61. Duct slot; 62. Duct plate; 621. Sealing bevel; 63. Torsion spring; 64. Small fan; 65. Water collection tank; 7. Drive assembly; 71. Heat drive tube; 72. Push rod; 73. Compression spring; 74. Torsion rack; 75. Torsion gear; 76. Connector; 761. Drive linkage; 762. Rack and pinion linkage; 8. Defrosting assembly; 81. Ultrasonic defroster; 82. Temperature sensor; 9. Insulation assembly; 91. Insulated solenoid valve; 92. Humidity sensor. Detailed Implementation

[0039] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0040] Please refer to Figures 1 to 10. This invention provides an air-cooled adaptive constant temperature and humidity air conditioning unit, the technical solution of which is as follows:

[0041] As a specific embodiment of the present invention, referring to Figures 1, 2, and 3, an air-cooled adaptive constant temperature and humidity air conditioning unit includes a housing 1, an evaporator 2, a condenser 3, an exhaust fan 4, and a compressor 5; it also includes an air duct assembly 6, a drive assembly 7, a defrost assembly 8, and a heat insulation assembly 9; the air duct assembly 6 is provided in two sets, respectively disposed on the front and rear sides of the evaporator 2; the drive assembly 7 is connected to the air duct assembly 6, and during defrosting operation, the drive assembly 7 drives the two sets of air duct assemblies 6 to rotate to a closed state; the defrost assembly 8 is disposed above the evaporator 2, and the defrost assembly 8 opens when the air duct assembly 6 is in the closed state; the heat insulation assembly 9 is connected to the drive assembly 7, and the heat insulation assembly 9 opens when the temperature is below a certain limit one, the humidity is above a certain limit two, and reverse circulation is performed.

[0042] As a specific embodiment of the present invention, referring to Figures 2, 5, and 7, the air duct assembly 6 includes an air duct groove 61, an air duct plate 62, a torsion spring 63, a small fan 64, and a water collection tank 65. The air duct groove 61 is symmetrically arranged on the left and right sides of the evaporator 2. The air duct plate 62 is linearly arrayed and installed in the air duct groove 61. The torsion spring 63 is connected to the air duct plate 62. The small fan 64 is installed above the evaporator 2. The water collection tank 65 is located below the evaporator 2 and is connected to the outside through a pipe. During the defrosting process in conjunction with the ultrasonic defroster 81 in reverse circulation, the area around the evaporator 2 can be sealed off, preventing the evaporated water vapor from leaving the space formed by the air duct plate 62. Furthermore, the downward airflow from the small fan 64 blows both water vapor and water into the water collection tank 65 and then discharges it, avoiding increased energy consumption due to prolonged dehumidification time. The small fan 64 and the exhaust fan 4 are connected by an interlocking circuit, and the exhaust fan 4 is automatically shut off when the small fan 64 starts. The interlock circuit enables the exhaust fan 4 to automatically shut down when the small fan 64 is turned on, and the small fan 64 to automatically shut down when the exhaust fan 4 is turned on. This ensures that the airflow is downward during the defrosting stage and horizontal during normal operation, while also saving some energy.

[0043] As a specific embodiment of the present invention, referring to Figures 7, 9, and 10, the upper and lower ends of the air duct plate 62 are provided with sealing inclined surfaces 621, which are respectively opened on the inner and outer sides of the air duct plate 62. When two adjacent air duct plates 62 are rotated to the closed state, the sealing inclined surfaces 621 can prevent jamming and friction, and also ensure a better sealing effect, avoiding the decrease in sealing effect caused by long-term friction.

[0044] As a specific embodiment of the present invention, referring to Figures 2, 4, and 5, the drive assembly 7 includes a heat drive tube 71, a push rod 72, a compression spring 73, a torsion rack 74, a torsion gear 75, and a connector 76; a heat pipe 21 is connected between the evaporator 2 and the compressor 5; the heat drive tube 71 is connected to the heat pipe 21; the push rod 72 is slidably installed inside the heat drive tube 71; the compression spring 73 is connected between the heat drive tube 71 and the push rod 72; the torsion rack 74 is slidably installed inside the air duct groove 61; the torsion gear 75 is connected to the air duct plate 62 and meshes with the torsion rack 74; the connector 76 is connected to the torsion rack 74. Under the action of torsion spring 63, the air duct plate 62 is normally kept in the open state, allowing air to flow smoothly through the evaporator 2 when the exhaust fan 4 is working. During defrosting, the torsion rack 74 drives the air duct plate 62 to rotate through the torsion gear 75, thereby causing the air duct plate 62 to enter the closed state. The small fan 64 can be triggered by the vertical movement of the torsion rack 74 and its motion until the air duct plate 62 is closed and remains stationary. When the air duct plate 62 is in the open state, the small fan 64 will turn off. The thermal expansion material in the heat drive tube 71 is made of a material with good thermal conductivity, which can be selected for its high thermal expansion properties during heating. The PNIPAM-based hydrogel, TPU microsphere composite material, or expanded graphite can expand more than 1.5 times at 70-80℃, ensuring that the air duct plate 62 can be kept closed after expansion and can be restored after cooling. For special scenarios, the materials mentioned above can be adapted (such as adding ZrO2 nanoparticles to the PNIPAM-based hydrogel to improve thermal stability). After defrosting is completed, the reverse circulation stops, the thermally expanded material dissipates heat quickly, and the compression spring 73 will recompress the thermally expanded material and drive the air duct plate 62 back to the open state through the torsion rack 74.

[0045] As a specific embodiment of the present invention, referring to Figures 7 and 8, the defrosting assembly 8 includes an ultrasonic defroster 81 and a temperature sensor 82; the ultrasonic defroster 81 is disposed on the upper part of the evaporator 2 and is connected in series with the small fan 64; the temperature sensor 82 is disposed on the upper part of the evaporator 2. During reverse circulation, the high-temperature and high-pressure refrigerant will directly enter the evaporator 2, and during the circulation process, some heat will be transferred to the thermally expanding material in the heat drive tube 71, ensuring that the temperature of the evaporator 2 does not become too high, causing the frost layer to directly turn into water vapor. At this time, the ultrasonic defroster 81 can completely remove the frost layer. Compared with high-temperature defrosting, it can avoid excessive water vapor. Compared with using ultrasonic defrosting alone, it can avoid the problem of incomplete defrosting and further improve defrosting efficiency, significantly shorten defrosting time, and thus reduce energy consumption.

[0046] As a specific embodiment of the present invention, referring to Figures 3 and 4, the heat insulation component 9 includes a heat insulation solenoid valve 91 and a humidity sensor 92; the heat insulation solenoid valve 91 is disposed at the connection position between the heat drive tube 71 and the heat pipe 21; the humidity sensor 92 is connected to the outer casing 1, and simultaneously opens the heat insulation solenoid valve 91 when the temperature sensor 82 detects that the temperature is lower than the first limit value (here set to -1°C, i.e., the temperature at which frost will occur) and the humidity sensor 92 detects that the humidity is higher than the second limit value (the humidity required for the scenario). There is also a thermally conductive sealing layer between the heat insulation solenoid valve 91 and the heat drive tube 71. When the heat insulation solenoid valve 91 is opened, the high-temperature and high-pressure refrigerant will not directly contact the thermally expanding material inside the heat drive tube 71, but will transfer heat to the thermally expanding material through the thermally conductive sealing layer, ensuring that the thermally expanding material is sealed inside the heat drive tube 71. The thermal insulation solenoid valve 91 will only open when both conditions are met: temperature sensor 82 detects a temperature below -2°C and humidity sensor 92 detects a humidity above a certain limit. When the thermal insulation solenoid valve 91 opens, the thermally expanding material in the heat drive tube 71 will absorb heat. During normal heating operation, the thermal insulation solenoid valve 91 is closed, allowing all the heat from the high-temperature, high-pressure refrigerant to enter the evaporator 2 for heating circulation, ensuring heating efficiency. At this time, the air duct plate 62 will remain open to ensure normal heating operation. When dehumidification and heating are required simultaneously, and temperature sensor 82 detects a temperature below the defrosting limit, dehumidification itself causes a temperature drop. Therefore, dehumidification will be performed first, followed by heating, after defrosting (and dehumidification will prevent the humidity sensor 92 from meeting its detection conditions). At this point, heating will not trigger the opening condition of the thermal insulation solenoid valve 91. Compared to heating first and then dehumidifying, this avoids the situation where direct heating leads to increased humidity and also avoids the need to reheat after dehumidification. The opening time of the thermal insulation solenoid valve 91 can be set to a fixed time (or closed after the ambient temperature of the evaporator 2 exceeds a fixed degree Celsius). After the thermal insulation solenoid valve 91 is closed, the evaporator 2 will defrost using residual heat in conjunction with the ultrasonic defroster 81. At this time, most of the frost layer has been removed, and the remaining water droplets will enter the water collection tank 65 and be discharged under the force of vibration and the airflow of the small fan 64, making the surface of the evaporator 2 drier, thus better helping subsequent dehumidification. During this process, the thermal insulation solenoid valve 91 is closed, the thermally expanded material dissipates heat rapidly, the compression spring 73 will recompress the thermally expanded material and drive the air duct plate 62 back to the open state through the torsion rack 74.

[0047] As a specific embodiment of the present invention, referring to Figures 4, 6 and 7, the connecting member 76 includes a drive link 761 and a rack link 762; the drive link 761 is connected between the push rod 72 and the front torsion rack 74; the front and rear torsion racks 74 of the evaporator 2 are arranged in a mirror image with respect to the evaporator 2; the rack link 762 is connected between the front and rear torsion racks 74 of the evaporator 2. The connector 76 can simultaneously drive the front and rear air duct plates 62 of the evaporator 2 to open synchronously. Since the two torsion racks 74 are arranged in a mirror image, when the two torsion racks 74 move up and down synchronously, the air duct plates 62 will rotate in opposite directions. At this time, when the air duct plates 62 are open, the two sets of air duct plates 62 can open at opposite angles. That is, the air through the air duct assembly 6 will move downward and then upward or upward and then downward, which prolongs the contact time with the evaporator 2. This ensures that the working efficiency can be improved in cooling, heating and dehumidification, and the desired effect can be achieved faster, thereby shortening the working time and achieving the purpose of energy saving.

[0048] Workflow: During defrosting, the heat-insulating solenoid valve 91 opens, allowing some of the heat from the high-temperature, high-pressure refrigerant in the reverse circulation to be transferred to the drive assembly 7. The drive assembly 7 absorbs heat and drives the air duct plate 62 to rotate to the closed state of the evaporator 2. At the same time, the small fan 64 and the ultrasonic defroster 81 are turned on, and the exhaust fan 4 is turned off. At this time, the ultrasonic defroster 81, in conjunction with the heat from the reverse circulation, will quickly remove the frost layer from the surface of the evaporator 2, while the small fan 64 will quickly blow the frost layer into the water collection tank 65 and simultaneously blow the evaporated water vapor into the water collection tank 65 and discharge it. This can significantly shorten the defrosting time and prevent humidity rebound.

[0049] Specifically, when the temperature sensor 82 detects a temperature below -1 degree Celsius and the humidity sensor 92 detects a humidity higher than the required level for the scene, the high-temperature, high-pressure refrigerant compressed by the compressor 5 will undergo reverse circulation. At this time, the heat-insulating solenoid valve 91 will open, and the high-temperature, high-pressure refrigerant will flow to the evaporator 2 through the heat pipe 21. During this process, some heat will be transferred to the thermally expanding material in the heat drive tube 71. The thermally expanding material absorbs heat and expands, driving the push rod 72 to move vertically. The push rod 72 drives the torsion rack 74 to move through the drive linkage 761. The torsion rack 74 drives the air duct plate 62 to rotate through the transmission effect between it and the torsion gear 75, rotating it to a state where the evaporator 2 is closed, forming a vertical air duct. The torsion rack 74, in this state, will drive the small fan 64. When the ultrasonic defroster 81 is turned on and the exhaust fan 4 is turned off, the downward airflow from the small fan 64 blows water vapor and water into the water collection tank 65 and discharges them, significantly shortening the defrosting time and preventing humidity rebound. After the defrosting time is reached, the thermal insulation solenoid valve 91 will close. After the thermal insulation solenoid valve 91 closes, the evaporator 2 will defrost using residual heat in conjunction with the ultrasonic defroster 81. At this time, most of the frost layer has been removed, and the remaining water droplets will enter the water collection tank 65 and be discharged under the vibration and airflow from the small fan 64, making the surface of the evaporator 2 drier, thus better helping subsequent dehumidification. During this process, the thermal insulation solenoid valve 91 is closed, and the thermally expanded material is rapidly dissipating heat. The compression spring 73 will recompress the thermally expanded material and drive the air duct plate 62 back to the open state through the torsion rack 74.

[0050] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as defined by the appended claims and their equivalents.

Claims

1. A wind-cooled adaptive constant temperature and humidity air conditioning unit, comprising an outer casing (1), an evaporator (2), a condenser (3), an exhaust fan (4), and a compressor (5); characterized in that: It also includes a duct assembly (6), a drive assembly (7), a defrost assembly (8), and a heat insulation assembly (9); the duct assembly (6) is provided in two sets and is respectively located on the front and rear sides of the evaporator (2); the drive assembly (7) is connected to the duct assembly (6), and during defrosting, the drive assembly (7) drives the two sets of duct assemblies (6) to rotate to a closed state; the defrost assembly (8) is located above the evaporator (2), and the defrost assembly (8) opens when the duct assembly (6) is in a closed state; the heat insulation assembly (9) is connected to the drive assembly (7), and the temperature is below a certain value. When the humidity exceeds the limit value and reverse circulation is in progress, the heat insulation component (9) opens; the air duct component (6) includes an air duct groove (61), an air duct plate (62), a torsion spring (63), a small fan (64), and a water collection tank (65); the air duct groove (61) is symmetrically arranged on the left and right sides of the evaporator (2); the air duct plate (62) is linearly arrayed and installed in the air duct groove (61); the torsion spring (63) is connected to the air duct plate (62); the small fan (64) is installed above the evaporator (2); the water collection tank (65) is located below the evaporator (2); the drive Component (7) includes a heat drive tube (71), a push rod (72), a compression spring (73), a torsion rack (74), a torsion gear (75), and a connector (76); a heat pipe (21) connects the evaporator (2) and the compressor (5); the heat drive tube (71) is connected to the heat pipe (21); the push rod (72) is slidably installed inside the heat drive tube (71); the compression spring (73) is connected between the heat drive tube (71) and the push rod (72); the torsion rack (74) is slidably installed inside the air duct groove (61); the torsion gear (75) and the connector (76) are connected. The air duct plate (62) is connected to and meshes with the torsion rack (74); the connector (76) is connected to the torsion rack (74); the connector (76) includes a drive link (761) and a rack link (762); the drive link (761) is connected between the push rod (72) and the front torsion rack (74); the front and rear torsion racks (74) of the evaporator (2) are arranged in a mirror image with respect to the evaporator (2); the rack link (762) is connected between the front and rear torsion racks (74) of the evaporator (2).

2. The air-cooled adaptive constant temperature and humidity air conditioning unit according to claim 1, characterized in that: The small fan (64) and the exhaust fan (4) are connected by an interlock circuit, and the exhaust fan (4) is automatically shut down when the small fan (64) is started.

3. The air-cooled adaptive constant temperature and humidity air conditioning unit according to claim 1, characterized in that: The air duct plate (62) is provided with sealing slopes (621) at the upper and lower ends, and the sealing slopes (621) at the upper and lower ends are respectively opened on the inner and outer sides of the air duct plate (62).

4. The air-cooled adaptive constant temperature and humidity air conditioning unit according to claim 2, characterized in that: The defrosting assembly (8) includes an ultrasonic defroster (81) and a temperature sensor (82); the ultrasonic defroster (81) is located on the upper part of the evaporator (2) and is connected in series with the circuit of the small fan (64); the temperature sensor (82) is located on the upper part of the evaporator (2).

5. The air-cooled adaptive constant temperature and humidity air conditioning unit according to claim 1, characterized in that: The heat insulation component (9) includes a heat insulation solenoid valve (91) and a humidity sensor (92); the heat insulation solenoid valve (91) is located at the connection between the heat drive tube (71) and the heat pipe (21); the humidity sensor (92) is connected to the outer casing (1) and simultaneously opens the heat insulation solenoid valve (91) when the temperature sensor (82) detects that the temperature is lower than a certain limit one and the humidity sensor (92) detects that the humidity is higher than a certain limit two.

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