Intelligent refrigerating unit

Abstract

The invention belongs to the technical field of refrigeration equipment, and particularly relates to an intelligent refrigerating unit which comprises a compressor assembly, a condenser assembly, a throttling assembly and an evaporator, and the compressor assembly enables refrigerants to circularly flow in the condenser assembly, the throttling assembly and the evaporator in the forward direction or the reverse direction. A control host is fixedly installed on the side wall of the compressor assembly, the outer side of the evaporator is sleeved with a mounting box, and a control panel is fixedly installed on the side wall of the mounting box. Moisture in air can be removed in advance so as to reduce the frosting amount of the evaporator, the defrosting period can be prolonged, temperature fluctuation and the influence on refrigeration efficiency can be avoided, energy consumption can be reduced, transposition regeneration of the silica gel desiccant and reverse circulation defrosting work of the evaporator can be automatically started according to air humidity, the desiccant can be regenerated through waste heat, energy is saved, and consumption is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of refrigeration equipment, and in particular relates to an intelligent refrigeration unit. Background Art

[0002] Refrigeration units are widely used in places where temperature control is required. Their function is to lower the target ambient temperature through heat transfer, creating suitable low-temperature conditions for various temperature-sensitive equipment, objects or spaces to ensure their normal operation, extend their service life or maintain stable quality. Refrigeration units are mainly composed of compressors, condensers, throttling structures and evaporators.

[0003] At present, when the refrigeration unit is working, since the evaporator needs to contact and exchange heat with the air inside the refrigeration space, the moisture in the air condenses when it is cold, resulting in frost on the surface of the evaporator. Frost will seriously affect the refrigeration efficiency of the evaporator to the refrigeration space. In order to quickly defrost, some refrigeration units will use structures such as four-way valves to reverse the circulation of refrigerant, so that the high-temperature refrigerant heats the heat exchange tubes of the evaporator to achieve the purpose of defrosting, such as an intelligent refrigeration unit disclosed in patent announcement number CN207778859U; The refrigeration unit can achieve reverse heating and defrosting of the evaporator through reverse circulation flow, but in this process, the evaporator will stop cooling the refrigerated space, and part of the heat generated by the reverse heating will be transferred to the refrigerated space. For spaces that require continuous refrigeration, if reverse cycle heating and defrosting are performed too frequently, the temperature of the refrigerated space will fluctuate greatly due to the cessation of refrigeration by the evaporator and the influence of heat, affecting the refrigeration effect. If the defrosting frequency is reduced, the frost condensed on the evaporator will reduce its refrigeration efficiency, thereby increasing unnecessary energy consumption. Summary of the invention

[0004] The purpose of the present invention is to provide an intelligent refrigeration unit in view of the above problems.

[0005] To achieve the above object, the present invention adopts the following technical solutions: an intelligent refrigeration unit, comprising a compressor assembly, a condenser assembly, a throttling assembly and an evaporator, wherein the compressor assembly causes the refrigerant to circulate forward or reversely in the condenser assembly, the throttling assembly and the evaporator, a control host is fixedly installed on the side wall of the compressor assembly, an installation box is sleeved on the outer side of the evaporator, and a control panel is fixedly installed on the side wall of the installation box, and further comprising: A thermal insulation dehumidification box is arranged on one side of the installation box, the interior of the thermal insulation dehumidification box is filled with two groups of silica gel desiccants, the thermal insulation dehumidification box is installed with a transposition drive mechanism, and the transposition drive mechanism drives the two groups of silica gel desiccants to move and transpose, the side wall of the thermal insulation dehumidification box is provided with two vents, and stainless steel filters are installed inside the two vents, and the two vents are respectively arranged on both sides of a group of silica gel desiccants on the same side; An air inlet unit is installed between the temperature-insulating dehumidification box and the installation box, and the air inlet unit is connected to the vent on the same side, and a trigger start component is installed inside the temperature-insulating dehumidification box and the air inlet unit; A regeneration unit, installed between the condenser assembly and the temperature-insulating dehumidification box, for regenerating the silica gel desiccant; The pressure reduction unit is installed on the top of the temperature-insulating dehumidification box and is used to assist the regeneration of the silica gel desiccant.

[0006] Preferably, the transposition drive mechanism includes three thermal insulation piston plates slidably arranged inside the thermal insulation dehumidification box, and a connecting column is fixedly provided between two adjacent thermal insulation piston plates, and two groups of silica gel desiccants are respectively arranged between two adjacent thermal insulation piston plates, and two electric push rods are fixedly plugged into the side wall of the thermal insulation dehumidification box, and the telescopic ends of the two electric push rods are fixedly connected to the side wall of the thermal insulation piston plate on the same side, and the two electric push rods are electrically connected to the control panel.

[0007] Preferably, the air inlet unit includes an air inlet pipe fixedly plugged into the side wall of the installation box, and a fan is installed inside the air inlet pipe. The air inlet pipe is connected to the interior of the thermal insulation dehumidification box through a vent on the same side, and an air outlet is opened on the side wall of the installation box.

[0008] Preferably, the trigger start component includes an air inlet humidity detector fixedly plugged into the wall of the air inlet duct, and the detection end of the air inlet humidity detector is arranged inside the air inlet duct, a U-shaped plate is fixedly installed on the side wall of the temperature-insulating dehumidification box away from the evaporator, and a driving motor is fixedly plugged into the side wall of the U-shaped plate, the output end of the driving motor is fixedly sleeved with a rotating block, and the side wall of the rotating block is integrally formed with a hemispherical protrusion, a pressure switch is fixedly installed on the inner wall of the U-shaped plate, when the hemispherical protrusion passes through the position of the pressure switch, the hemispherical protrusion will squeeze and close the moving contact of the pressure switch, the pressure switch is electrically connected to the counting module of the control board, and the control board controls the output power of the driving motor according to the strength of the electrical signal output by the air inlet humidity detector.

[0009] Preferably, the regeneration unit includes two air inlet insulation covers fixedly mounted on the outer wall of the insulation dehumidification box, and the two air inlet insulation covers are respectively arranged on both sides of the air inlet pipe, the side walls of the two air inlet insulation covers are fixedly plugged with insulation ventilation pipes, the air outlet side wall of the condenser assembly is fixedly mounted with an exhaust pipe, and an exhaust electric control valve is installed inside the exhaust pipe, the two insulation ventilation pipes are fixedly connected to the exhaust pipe, and the two insulation ventilation pipes are installed inside the normally closed solenoid valves, the side wall of the insulation dehumidification box away from the evaporator side has two air outlet insulation covers corresponding to the position of the air inlet insulation covers, and the end faces of the two air outlet insulation covers are fixedly plugged with outlet insulation pipes, the side wall of the insulation dehumidification box is located at the inner side of the two air inlet insulation covers and the inner side of the two air outlet insulation covers, and a plurality of ventilation holes are opened, and the exhaust electric control valve and the two normally closed solenoid valves are electrically connected to the control board.

[0010] Preferably, the pressure reduction unit includes a support frame fixedly installed on the top of the temperature-insulating dehumidification box, and a vacuum pump is fixedly connected to the end face of the support frame, a three-way pipe is installed at the air outlet end of the vacuum pump, and suction electric control valves are installed inside the two air inlet ends of the three-way pipe, the two air outlet insulation pipes are connected to the three-way pipe, and an air outlet mechanism is installed at the air outlet end of the vacuum pump.

[0011] Preferably, the air outlet mechanism includes a connecting pipe fixedly connected to the air outlet end of the vacuum pump, and the top of the connecting pipe is fixedly connected to a detection box, an air outlet humidity detector is fixedly plugged into the side wall of the detection box, and the detection end of the air outlet humidity detector is arranged inside the detection box, an exhaust pipe is fixedly plugged into the end face of the detection box, and the air outlet humidity detector is electrically connected to the control panel.

[0012] Preferably, a strip-shaped rotating plate is installed at the output end of the driving motor, and bristles are fixedly installed on the side wall of the strip-shaped rotating plate, and the bristles are in contact with the side wall of the stainless steel filter screen on the same side.

[0013] Compared with existing technologies, the advantages of an intelligent refrigeration unit are: 1. Through the cooperation of the compressor assembly, condenser assembly, throttling assembly, evaporator, mounting hole, control host and control panel, the space that needs to be refrigerated can be refrigerated, and through the cooperation of the temperature-insulating dehumidification box, silica gel desiccant, transposition drive mechanism, stainless steel filter and air inlet unit, the moisture in the air in the refrigeration space can be removed in advance at the air inlet end of the evaporator, thereby reducing the amount of frost on the evaporator surface, extending the frequency of defrosting the evaporator surface, preventing temperature fluctuations in the refrigeration space due to frequent defrosting, and preventing the evaporator from frosting too frequently to affect the refrigeration efficiency of the refrigeration space, thereby reducing unnecessary energy consumption.

[0014] 2. Through the trigger start component, the silica gel desiccant can be automatically started for regeneration based on the humidity of the air entering the evaporator, ensuring the continuous absorption of moisture in the air. The reverse cycle defrosting of the evaporator can also be automatically started based on the humidity of the air in contact with the evaporator.

[0015] 3. Through the cooperation of the regeneration unit and the pressure reduction unit, the heat emitted by the condenser assembly can be used to regenerate the silica gel desiccant, and the heat energy can be reused, which has a good energy-saving and consumption-reducing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of an intelligent refrigeration unit provided by the present invention; Figure 2 It is a schematic diagram of the internal structure of an installation box of an intelligent refrigeration unit provided by the present invention; Figure 3 It is a top view schematic diagram of the connection structure between the installation box and the condenser assembly of an intelligent refrigeration unit provided by the present invention; Figure 4 It is a three-dimensional structural schematic diagram of a temperature-insulating dehumidifying box of an intelligent refrigeration unit provided by the present invention; Figure 5 It is a schematic diagram of the top view of the interior of a temperature-insulating dehumidifying box of an intelligent refrigeration unit provided by the present invention; Figure 6 It is a schematic diagram of the three-dimensional connection structure of a temperature-insulating piston plate of an intelligent refrigeration unit provided by the present invention; Figure 7 The present invention provides an intelligent refrigeration unit Figure 5 A magnified view of the structure of part A; Figure 8 This is a schematic diagram of the internal top view structure of an exhaust duct of an intelligent refrigeration unit provided by the present invention; Fig. 9 It is a side structural schematic diagram of a pressure reduction unit of an intelligent refrigeration unit provided by the present invention.

[0017] In the figure: 1 compressor assembly, 2 condenser assembly, 3 throttling assembly, 4 evaporator, 5 control host, 6 installation box, 7 control board, 8 temperature insulation dehumidification box, 9 silica gel desiccant, 10 transposition drive mechanism, 101 temperature insulation piston plate, 102 connecting column, 103 electric push rod, 11 stainless steel filter, 12 air inlet unit, 121 air inlet pipe, 122 fan, 123 air outlet, 13 trigger start assembly, 131 air inlet humidity detector, 132 U-shaped plate, 133 drive motor, 134 rotating block, 135 hemisphere protrusion, 136 pressure switch, 14 regeneration unit, 141 air inlet insulation cover, 142 insulation ventilation pipe, 143 exhaust pipe, 144 exhaust electric control valve, 145 normally closed solenoid valve, 146 air outlet insulation cover, 147 air outlet insulation pipe, 148 vent, 15 pressure reduction unit, 151 support frame, 152 vacuum pump, 153 three-way pipe, 154 suction electric control valve, 16 air outlet mechanism, 161 connecting pipe, 162 detection box, 163 air outlet humidity detector, 164 tail pipe, 17 strip rotating plate, 18 brush. Implementation

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0019] like Figure 1-Figure 9 As shown, an intelligent refrigeration unit includes a compressor assembly 1, a condenser assembly 2, a throttling assembly 3 and an evaporator 4. The compressor assembly 1 allows the refrigerant to circulate forward or reversely in the condenser assembly 2, the throttling assembly 3 and the evaporator 4. A control host 5 is fixedly installed on the side wall of the compressor assembly 1. An installation box 6 is sleeved on the outside of the evaporator 4, and a control panel 7 is fixedly installed on the side wall of the installation box 6. The unit also includes: a temperature-insulating dehumidification box 8, which is arranged on one side of the installation box 6. The interior of the temperature-insulating dehumidification box 8 is filled with two groups of silica gel desiccants 9. The temperature-insulating dehumidification box 8 is equipped with a transposition drive mechanism. Structure 10, and the transposition driving mechanism 10 drives the two groups of silica gel desiccants 9 to move and transpose, the transposition driving mechanism 10 includes three thermal insulation piston plates 101 slidably arranged inside the thermal insulation dehumidification box 8, and a connecting column 102 is fixedly arranged between two adjacent thermal insulation piston plates 101, the two groups of silica gel desiccants 9 are respectively arranged between the two adjacent thermal insulation piston plates 101, the side wall of the thermal insulation dehumidification box 8 is fixedly plugged with two electric push rods 103, and the telescopic ends of the two electric push rods 103 are fixedly connected to the side wall of the thermal insulation piston plate 101 on the same side, and the two electric push rods 103 are electrically connected to the control board 7.

[0020] Two ventilation holes are provided on the side wall of the thermal insulation dehumidification box 8, and stainless steel filters 11 are installed inside the two ventilation holes. The two ventilation holes are respectively arranged on both sides of a group of silica gel desiccant 9 on the same side. The air inlet unit 12 is installed between the thermal insulation dehumidification box 8 and the installation box 6, and the air inlet unit 12 is connected to the ventilation holes on the same side. The air inlet unit 12 includes an air inlet pipe 121 fixedly plugged into the side wall of the installation box 6, and a fan 122 is installed inside the air inlet pipe 121. The air inlet pipe 121 is connected to the interior of the thermal insulation dehumidification box 8 through the ventilation holes on the same side, and an air outlet hole 123 is provided on the side wall of the installation box 6.

[0021] The interior of the dehumidification box 8 and the air inlet unit 12 are jointly equipped with a trigger start component 13, which includes an air inlet humidity detector 131 fixedly plugged into the wall of the air inlet pipe 121, and the detection end of the air inlet humidity detector 131 is arranged inside the air inlet pipe 121, and a U-shaped plate 132 is fixedly installed on the side wall of the dehumidification box 8 away from the evaporator 4, and a driving motor 133 is fixedly plugged into the side wall of the U-shaped plate 132, and a rotating block 134 is fixedly sleeved on the output end of the driving motor 133, and the rotating block 134 The side wall is integrally formed with a hemispherical protrusion 135, and the inner wall of the U-shaped plate 132 is fixedly installed with a pressure switch 136. When the hemispherical protrusion 135 passes the position of the pressure switch 136, the hemispherical protrusion 135 will squeeze and close the moving contact of the pressure switch 136. The pressure switch 136 is electrically connected to the counting module of the control board 7. The control board 7 controls the output power of the drive motor 133 according to the strength of the electrical signal output by the inlet air humidity detector 131. The inlet air humidity detector 131 can convert the humidity into an electrical signal and output it to the control board 7.

[0022] The regeneration unit 14 is installed between the condenser assembly 2 and the insulation dehumidification box 8, and is used to regenerate the silica gel desiccant 9. The regeneration unit 14 includes two air inlet insulation covers 141 fixedly installed on the outer wall of the insulation dehumidification box 8, and the two air inlet insulation covers 141 are respectively arranged on both sides of the air inlet pipe 121, and the side walls of the two air inlet insulation covers 141 are fixedly plugged with insulation ventilation pipes 142, and the side wall of the air outlet end of the condenser assembly 2 is fixedly installed with an exhaust pipe 143, and the exhaust pipe 143 is internally installed with an exhaust electric control valve 144, and the two insulation ventilation pipes 142 are fixedly connected to the exhaust pipe 143, and the two insulation ventilation pipes 142 are internally installed with a normally closed solenoid valve 145, and the insulation dehumidification box 8 is away from the evaporator 4. Two air outlet insulation covers 146 corresponding to the positions of the air inlet insulation covers 141 are fixedly installed on the side wall on one side, and the end faces of the two air outlet insulation covers 146 are fixedly plugged with air outlet insulation pipes 147. The side walls of the insulation dehumidification box 8 are located at the inner sides of the two air inlet insulation covers 141 and the inner sides of the two air outlet insulation covers 146, and multiple air vents 148 are provided. The exhaust electric control valve 144 and the two normally closed solenoid valves 145 are electrically connected to the control board 7. The exhaust electric control valve 144 includes a cover plate that matches the pipe mouth of the exhaust pipe 143. The exhaust pipe 143 is connected to the cover plate through an electromagnetic structure. After the electromagnetic structure is energized, the cover plate will move toward the exhaust pipe 143, thereby closing the pipe mouth of the exhaust pipe 143.

[0023] The pressure reduction unit 15 is installed on the top of the thermal insulation dehumidification box 8 to assist in the regeneration of the silica gel desiccant 9. The pressure reduction unit 15 includes a support frame 151 fixedly installed on the top of the thermal insulation dehumidification box 8, and a vacuum pump 152 is fixedly plugged into the end face of the support frame 151. A three-way pipe 153 is installed at the air outlet end of the vacuum pump 152. Both air inlet ends of the three-way pipe 153 are internally installed with a suction electric control valve 154. Two air outlet insulation pipes 147 are connected to the three-way pipe 153. An air outlet mechanism 16 is installed at the air outlet end of the vacuum pump 152. The suction electric control valve 154 is opened when powered on and closed when powered off. Insulation structures are arranged at positions such as the vacuum pump 152, the detection box 162, and the three-way pipe 153 to prevent heat exchange between hot air and the interior of the refrigeration space.

[0024] The air outlet mechanism 16 includes a connecting pipe 161 fixedly connected to the air outlet end of the vacuum pump 152, and the top of the connecting pipe 161 is fixedly connected to a detection box 162, an air outlet humidity detector 163 is fixedly plugged into the side wall of the detection box 162, and the detection end of the air outlet humidity detector 163 is arranged inside the detection box 162, and an exhaust pipe 164 is fixedly plugged into the end face of the detection box 162, and the air outlet humidity detector 163 is electrically connected to the control board 7. The air outlet humidity detector 163 will output an electrical signal to the control board 7 after detecting that the humidity is lower than a threshold value.

[0025] A strip rotating plate 17 is installed at the output end of the driving motor 133, and bristles 18 are fixedly installed on the side wall of the strip rotating plate 17. The bristles 18 are in contact with the side wall of the stainless steel filter 11 on the same side. The driving motor 133 can be used to drive the strip rotating plate 17 to drive the bristles 18 to rotate, thereby preventing dust and other impurities from adhering to and clogging the surface of the stainless steel filter 11.

[0026] The operating principle of the present invention is now described as follows: the evaporator 4 is installed in the space that needs to be refrigerated. During normal operation, the control host 5 is started, and the control host 5 controls the compressor assembly 1 to work. The compressor assembly 1 can compress the refrigerant into a high-temperature and high-pressure state, and then the high-temperature and high-pressure refrigerant is transported to the condenser assembly 2 through pipelines such as a four-way valve. The refrigerant is cooled and liquefied through heat exchange with the outdoor air by the condenser assembly 2, and then the pressure and temperature are reduced to a low-temperature and low-pressure liquid state through the throttling assembly 3, and finally enters the evaporator 4 to absorb the heat of the indoor air and vaporize, so that the surrounding air is cooled, so that the refrigeration space can be cooled, and the refrigerant after heat exchange flows back to the compressor assembly 1. Through the circulation of the refrigerant, the refrigeration space can be continuously cooled; Among them, after the control host 5 is started, the control host 5 will send a start command to the control board 7, and the control board 7 will start immediately. After the control board 7 is started, the fan 122 will be controlled to work. The fan 122 can send the air in the refrigeration space through the vent, the insulation dehumidification box 8 and the air inlet pipe 121 to the evaporator 4. The evaporator 4 exchanges heat with the air, and the cooled air flows back into the refrigeration space through the air outlet 123 on the side wall of the installation box 6. When the air inside the refrigeration space passes through the insulation dehumidification box 8, the moisture in the air will be adsorbed by the porous structure of the silica gel desiccant 9, thereby reducing the moisture in the air in contact with the evaporator 4, and then greatly delaying the amount of frost on the surface of the evaporator 4. When the air dehumidified by the silica gel desiccant 9 enters the air inlet pipe 121, the air inlet humidity detector 131 will detect the humidity in the incoming air. Initially, since the silica gel desiccant 9 absorbs less moisture, the silica gel desiccant 9 absorbs the moisture in the incoming air more fully. At this time, the humidity of the air entering the air inlet pipe 121 is relatively low. Therefore, the electrical signal strength output by the air inlet humidity detector 131 to the control board 7 is relatively low. As the micropores inside the silica gel desiccant 9 are filled with water, the absorption effect of the silica gel desiccant 9 on the moisture in the air gradually becomes worse. At this time, the humidity of the air entering the air inlet pipe 121 usually increases gradually. Therefore, the electrical signal strength output by the air inlet humidity detector 131 to the control board 7 gradually increases. After the control board 7 is started, the control board 7 will control the drive motor 133 to rotate synchronously, and the drive motor 133 will drive the hemispherical protrusion 1 through the rotating block 134. 35 rotates synchronously, and every time the hemispherical protrusion 135 rotates one circle, the hemispherical protrusion 135 squeezes the moving contact of the closed pressure switch 136 once, and after the pressure switch 136 is closed, the pressure switch 136 outputs an electrical signal to the counting module of the control board 7, and the count of the counting module of the control board 7 increases by "1" (for example, the count value of the counting module changes from 1 to 2), and the higher the humidity of the air entering the air inlet pipe 121, the worse the drying effect of the silica gel desiccant 9 on the incoming air, and the speed of the driving motor 133 increases synchronously at this time, and the counting speed of the counting module of the control board 7 increases, and when the count of the counting module of the control board 7 reaches the set value (the set value is set based on the selected silica gel desiccant 9 material and quantity), the counting module of the control board 7 will feedback an electrical signal to the control circuit of the control board 7, and the control board 7 will synchronously feedback an electrical signal to the control host 5; After the control board 7 receives the electric signal fed back by its own counting module, the control board 7 will control the two electric push rods 103 to perform a timed retraction operation, so that the three temperature-insulating piston plates 101 will translate synchronously. Therefore, the silica gel desiccant 9 between the two stainless steel filter screens 11 will translate synchronously at this time. At this time, the silica gel desiccant 9 that has just absorbed moisture will leave from between the two stainless steel filter screens 11, and the other group of silica gel desiccant 9 that has not absorbed moisture will move between the two stainless steel filter screens 11. Therefore, when the humidity of the air entering the air inlet pipe 121 is high, the silica gel desiccant 9 that has not absorbed moisture can be immediately switched to between the two stainless steel filter screens 11, ensuring the continuous dehumidification effect of the air entering the air inlet pipe 121; At the same time, after the control host 5 receives the electrical signal fed back by the control board 7, the control main board will control the normally closed solenoid valve 145 in the heat-insulating ventilation pipe 142 on the same side as the two electric push rods 103 to be energized and opened, and control the exhaust electric control valve 144 in the exhaust pipe 143 to be energized and closed. Therefore, at this time, the wind flow discharged from the air outlet end of the condenser assembly 2 will be discharged through the heat-insulating ventilation pipe 142 opened by the normally closed solenoid valve 145, and the exhausted wind flow passes through the heat-insulating ventilation pipe 142 into the corresponding air inlet insulation cover 141, and enters the heat-insulating dehumidification box 8 through the vent 148, and comes into contact with the silica gel desiccant 9 that has just been replaced. At the same time, the control board 7 will control the vacuum pump 152 to work, and control the corresponding suction electric control valve 154 in the three-way pipe 153 to be energized and opened. , the vacuum pump 152 can extract the hot air entering the insulation dehumidification box 8, and discharge the hot air to the outside through the connecting pipe 161, the detection box 162 and the tail pipe 164. After the vacuum pump 152 has been working for 2 minutes, the hot air flow discharged from the condenser assembly 2 can fully heat the replaced silica gel desiccant 9. At this time, the control host 5 controls the normally closed solenoid valve 145 inside the insulation ventilation pipe 142 to be powered off and closed, and at the same time controls the exhaust electric control valve 144 in the exhaust pipe 143 to be powered off and opened, and the control board 7 controls the vacuum pump 152 to continue working for 10 seconds. Since the normally closed solenoid valve 145 in the insulation ventilation pipe 142 has been powered off and closed, the air flow discharged from the condenser assembly 2 will not continue to enter. At this time, the vacuum pump 152 can The air pressure at the group of silica gel desiccant 9 is reduced. Under this low pressure state, the boiling point of water will be significantly reduced, and because the silica gel desiccant 9 has been heated, it is easier for water molecules to be freed from the microporous structure of the silica gel desiccant 9. After the vacuum pump 152 has been working for 10 seconds, the control board 7 controls the vacuum pump 152 to stop working and closes the corresponding suction electric control valve 154. Then, after an interval of 15 seconds, the control host 5 opens the normally closed solenoid valve 145 in the insulation ventilation pipe 142 again, and the control board 7 resumes the operation of the vacuum pump 152, and controls the suction electric control valve 154 on this side to open. At the same time, the control board 7 will control the air outlet humidity detector 163 to work, and the air outlet humidity detector 163 will detect the humidity in the exhaust airflow and discharge it. After the humidity in the outgoing airflow is lower than the threshold value (generally 30%), the outgoing air humidity detector 163 will output an electrical signal to the control board 7. Since the moisture absorbed in the silica gel desiccant 9 is released, the humidity in the outgoing airflow is too high. At this time, the outgoing air humidity detector 163 will not output an electrical signal to the control board 7. After the vacuum pump 152 resumes working for 2 minutes, the above steps will be repeated, that is, the normally closed solenoid valve 145 is controlled to be powered off, and the vacuum pump 152 continues to work for 10 seconds, so that the inside of the silica gel desiccant 9 continues to maintain a low pressure state, and then the above steps are repeated until the humidity in the airflow discharged by the vacuum pump 152 is lower than the threshold value. The outgoing air humidity detector 163 will output an electrical signal to the control board 7. At this time, it means that the group of silica gel desiccant 9 is fully dried and regenerated.The control board 7 controls the vacuum pump 152 to stop working, and controls the suction electric control valve 154 to be powered off and closed, while the control host 5 controls the normally closed solenoid valve 145 to be powered off and closed, and controls the exhaust electric control valve 144 to be powered off and opened, until the control board 7 receives the electrical signal fed back by its own counting module again, the control board 7 controls the electric push rod 103 to perform a timed extension operation, so that the fully dried silica gel desiccant 9 moves to between the two stainless steel filter screens 11, and then the control board 7 and the control host 5 repeat the above steps to continue to regenerate the silica gel desiccant 9. During this regeneration operation, the control host 5 and the control board 7 control the normally closed solenoid valve 145 away from the side of the electric push rod 103. The solenoid valve 145 and the sub-absorption electric control valve 154 work, and the normally closed solenoid valve 145 and the sub-absorption electric control valve 154 on the same side as the electric push rod 103 are controlled to work next time, and the cycle is alternating, so that the two groups of silica gel desiccant 9 can be regenerated alternately (wherein, when a group of silica gel desiccant 9 is still being regenerated, if the control board 7 receives the electrical signal fed back by its own counting module, the control board 7 ends the regeneration of the group of silica gel desiccant 9, and moves the group of silica gel desiccant 9 between the two stainless steel filter screens 11, so as to prevent the silica gel desiccant 9 that has absorbed too much water from being continuously located at the stainless steel filter screen 11, causing the evaporator 4 to be exposed to too much water); Among them, each time the control host 5 receives an electrical signal fed back by the control board 7, the counting module of the control host 5 will also count once. After the counting module of the control host 5 counts 20 times, the control host 5 starts a reverse cycle defrosting operation. At this time, the compressor component 1 reversely circulates the high-temperature refrigerant to the evaporator 4 through the four-way valve and other pipelines, and the temperature of each heat exchange tube of the evaporator 4 rises immediately, so that the frost condensed on the surface of the heat exchange tube of the evaporator 4 can be melted and removed, and the refrigerant passing through the evaporator 4 flows back to the compressor component 1 through the throttling component 3, the condenser component 2, etc. (a drainage pipeline is provided at the bottom of the installation box 6, and a control panel controlled by the control board 7 is provided in the pipeline). Valve, when reverse cycle defrosting is performed, the control panel 7 controls the valve to open to discharge the waste water generated during defrosting). The duration of a single reverse cycle is 5 minutes. After 5 minutes, the control host 5 controls the compressor assembly 1 to circulate the refrigerant forward to continue refrigerating the refrigeration space, ensuring that the evaporator 4 can be defrosted in time when the air humidity is high. Since the front end of the evaporator 4 is pre-dehumidified, the frequency of defrosting the evaporator 4 through the reverse cycle is greatly reduced, thereby reducing the frequent temperature fluctuations in the refrigeration space caused by the reverse cycle dehumidification, and avoiding the phenomenon of reduced refrigeration efficiency caused by excessive frost on the surface of the evaporator 4.

[0027] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An intelligent refrigeration unit, comprising a compressor assembly (1), a condenser assembly (2), a throttling assembly (3) and an evaporator (4), wherein the compressor assembly (1) causes a refrigerant to circulate in a forward or reverse direction in the condenser assembly (2), the throttling assembly (3) and the evaporator (4), a control host (5) is fixedly mounted on a side wall of the compressor assembly (1), an installation box (6) is sleeved on the outer side of the evaporator (4), and a control panel (7) is fixedly mounted on the side wall of the installation box (6), characterized in that: Also includes: A thermal insulation dehumidification box (8) is arranged on one side of the installation box (6), the interior of the thermal insulation dehumidification box (8) is filled with two groups of silica gel desiccants (9), the thermal insulation dehumidification box (8) is installed with a transposition drive mechanism (10), and the transposition drive mechanism (10) drives the two groups of silica gel desiccants (9) to move and transpose, the side wall of the thermal insulation dehumidification box (8) is provided with two ventilation holes, and the interiors of the two ventilation holes are both installed with stainless steel filters (11), and the two ventilation holes are respectively arranged on both sides of a group of silica gel desiccants (9) on the same side; air inlet The unit (12) is installed between the thermal insulation dehumidification box (8) and the installation box (6), and the air inlet unit (12) is connected to the ventilation port on the same side, and the interior of the thermal insulation dehumidification box (8) and the air inlet unit (12) are jointly installed with a trigger start component (13); the regeneration unit (14) is installed between the condenser component (2) and the thermal insulation dehumidification box (8) and is used to regenerate the silica gel desiccant (9); the pressure reduction unit (15) is installed on the top of the thermal insulation dehumidification box (8) and is used to assist the regeneration of the silica gel desiccant (9).

2. The intelligent refrigeration unit according to claim 1, characterized in that: The transposition drive mechanism (10) comprises three heat-insulating piston plates (101) slidably arranged inside the heat-insulating dehumidification box (8), and a connecting column (102) is fixedly arranged between two adjacent heat-insulating piston plates (101), and two groups of silica gel desiccants (9) are respectively arranged between two adjacent heat-insulating piston plates (101), and two electric push rods (103) are fixedly plugged into the side wall of the heat-insulating dehumidification box (8), and the telescopic ends of the two electric push rods (103) are fixedly connected to the side wall of the heat-insulating piston plate (101) on the same side, and the two electric push rods (103) are electrically connected to the control panel (7).

3. The intelligent refrigeration unit according to claim 1, characterized in that: The air inlet unit (12) comprises an air inlet pipe (121) fixedly plugged into a side wall of the installation box (6), and a fan (122) is installed inside the air inlet pipe (121); the air inlet pipe (121) is connected to the interior of the thermal insulation dehumidification box (8) through a ventilating opening on the same side, and an air outlet hole (123) is provided on the side wall of the installation box (6).

4. The intelligent refrigeration unit according to claim 3, characterized in that: The trigger start component (13) comprises an air intake humidity detector (131) fixedly plugged into the wall of the air intake pipe (121), and the detection end of the air intake humidity detector (131) is arranged inside the air intake pipe (121); a U-shaped plate (132) is fixedly mounted on the side wall of the temperature-insulating dehumidification box (8) away from the evaporator (4), and a driving motor (133) is fixedly plugged into the side wall of the U-shaped plate (132); a rotating block (134) is fixedly sleeved on the output end of the driving motor (133), and the rotating block (134) is The side wall is integrally formed with a hemispherical protrusion (135), and a pressure switch (136) is fixedly mounted on the inner side wall of the U-shaped plate (132). When the hemispherical protrusion (135) passes the position of the pressure switch (136), the hemispherical protrusion (135) squeezes and closes the moving contact of the pressure switch (136). The pressure switch (136) is electrically connected to a counting module of a control panel (7), and the control panel (7) controls the output power of the drive motor (133) according to the strength of the electrical signal output by the air intake humidity detector (131).

5. The intelligent refrigeration unit according to claim 3, characterized in that: The regeneration unit (14) comprises two air inlet insulation covers (141) fixedly mounted on the outer side wall of the insulation dehumidification box (8), and the two air inlet insulation covers (141) are respectively arranged on both sides of the air inlet pipe (121), and the side walls of the two air inlet insulation covers (141) are fixedly plugged with insulation ventilation pipes (142), the side wall of the air outlet end of the condenser assembly (2) is fixedly mounted with an exhaust pipe (143), and the exhaust pipe (143) is internally mounted with an exhaust electric control valve (144), the two insulation ventilation pipes (142) are fixedly connected to the exhaust pipe (143), and the interiors of the two insulation ventilation pipes (142) are A normally closed solenoid valve (145) is installed, and two air outlet insulation covers (146) corresponding to the positions of the air inlet insulation covers (141) are fixedly installed on the side wall of the insulation dehumidification box (8) away from the evaporator (4), and the end faces of the two air outlet insulation covers (146) are fixedly plugged with air outlet insulation pipes (147), and the side walls of the insulation dehumidification box (8) are located at the inner sides of the two air inlet insulation covers (141) and the inner sides of the two air outlet insulation covers (146) and are provided with a plurality of ventilation holes (148), and the exhaust electric control valve (144) and the two normally closed solenoid valves (145) are electrically connected to the control panel (7).

6. The intelligent refrigeration unit according to claim 5, characterized in that: The pressure reduction unit (15) includes a support frame (151) fixedly mounted on the top of the thermal insulation dehumidification box (8), and a vacuum pump (152) is fixedly plugged into the end surface of the support frame (151), a three-way pipe (153) is installed at the air outlet end of the vacuum pump (152), and two air inlet ends of the three-way pipe (153) are internally installed with a suction electric control valve (154), the two air outlet insulation pipes (147) are both connected to the three-way pipe (153), and an air outlet mechanism (16) is installed at the air outlet end of the vacuum pump (152).

7. The intelligent refrigeration unit according to claim 6, characterized in that: The air outlet mechanism (16) comprises a connecting pipe (161) fixedly connected to the air outlet end of the vacuum pump (152), and the top of the connecting pipe (161) is fixedly connected to a detection box (162), a side wall of the detection box (162) is fixedly plugged with an air outlet humidity detector (163), and a detection end of the air outlet humidity detector (163) is arranged inside the detection box (162), an end surface of the detection box (162) is fixedly plugged with an exhaust pipe (164), and the air outlet humidity detector (163) is electrically connected to the control panel (7).

8. The intelligent refrigeration unit according to claim 4, characterized in that: The output end of the driving motor (133) is mounted with a strip-shaped rotating plate (17), and the side wall of the strip-shaped rotating plate (17) is fixedly mounted with bristles (18), the bristles (18) being in contact with the side wall of the stainless steel filter screen (11) on the same side.

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