105results about How to "Reduce the amount of frosting" patented technology

The invention belongs to the technical field of air conditioners, and particularly relates to an air conditioner defrosting control method. In order to obtain the time for the air conditioner to enter the defrosting mode more accurately, the air conditioner defrosting control method provided by the invention comprises the steps of measuring the temperature of an outdoor unit coil under the condition that the air conditioner is in the heating working condition; acquiring the temperature attenuation degree of the outdoor unit coil within the first preset time; and judging whether to enable the air conditioner to enter the defrosting mode according to the temperature attenuation degree of the outdoor unit coil. Since the temperature attenuation of the outdoor unit coil before and after frosting is obvious, the frosting quantity of the air conditioner outdoor unit can be represented accurately according to the temperature attenuation degree of the outdoor unit coil, and the accuracy of selecting the time for the air conditioner to enter the defrosting mode is improved, so that false defrosting, excessive defrosting and other phenomena are avoided effectively.

The invention provides an air cooling refrigerator and a dehumidifying method thereof. The air cooling refrigerator comprises a refrigerator body; a refrigeration chamber which is limited in the refrigerator body; an evaporator which cools flowing air; an air supply flue which is configured to supply the air cooled by the evaporator to the refrigeration chamber; an air return flue which is configured to convey the air from the refrigeration chamber to the evaporator for cooling; and at least one semiconductor refrigeration module which has a first temperature change end and a second temperature change end. The first temperature change end of each semiconductor refrigeration module is arranged in the air return flue; and each semiconductor refrigeration module is configured to allow the first temperature change end and the second temperature change end to serve as a refrigeration end for reducing temperature and a heating end for raising the temperature under control, so that the air entering the air return flue flows through the first temperature change end and the evaporator in sequence, and water therein is condensed at the first temperature change end. Before the air with higher humidity in the refrigeration chamber is returned to the evaporator, the water is condensed and removed at the first temperature change end, so that the frosting quantity of the evaporator is largely reduced.

The heat exchanger for heat pump disclosed in the present invention includes collecting pipes set in level direction, flat pipes vertically mounted among the collecting pipes and connected with the collecting pipes, and fins inserted among the collecting pipes in horizontal direction. The fins include multiple cell radiating ribs among the flat pipes. Each cell radiating rib includes several staggered and protruding arched bridge pieces, two guide pieces disposed on two sides of the arched bridge pieces and connected to the ends of the bridge pieces, water preventing wale disposed at the edge of the front end of the guide pieces, and a discharging mechanism disposed in front of the guide pieces for discharging the condensed water or defrosting water downward. The present invention can discharge the condensed water or defrosting water in time, thereby effectively avoid the condensed water or defrosting water blocking wind passage and reduces wind resistance. Because the condensed water or defrosting water is discharged in time, the frost amount is then reduced. Furthermore, the staggered and protruding arched bridge pieces on the surface of cell radiating piece can reduce wind resistance, disturb temperature border layer, reinforce the mixture of air flow and enhance the heat exchanging effect.

The invention relates to a freezer comprising a balance valve, a defrosting pipe and a frost collection box, wherein the balance valve and the defrosting pipe are arranged on the freezer, and the frost collection box is connected with the balance valve and the defrosting pipe. The balance valve is of a one-way valve type and is arranged on a freezer body, and the inside and the outside of the freezer can be communicated through the balance valve. The frost collection box is arranged in the freezer body of the freezer. A freezer body inside outlet of the balance valve faces towards the inside of a box body of the frost collection box. The defrosting pipe comprises a dehumidification pipe filled with desiccant. A waterproof gas-permeable film is arranged inside the defrosting pipe and located at the position, close to the inner side of the freezer body, of the defrosting pipe. The defrosting pipe is installed on the freezer body and connected with the frost collection box. A freezer body inside outlet of the defrosting pipe faces towards the inside of the frost collection box. According to the freezer, on the premise of balancing air pressure inside the freezer body and outside the freezer body, the frosting amount of an inner container of the freezer body is reduced, and therefore the cycle of removing frost is prolonged.

The invention provides a direct-cooling refrigerator which comprises a refrigerating liner, wherein the refrigerating liner comprises an open side corresponding to a door body, four side walls adjacent to the open side, and a rear wall opposite to the open side; a first evaporating pipe group for refrigerating the refrigerating liner is arranged on at least one wall surface of the side wall and the rear wall, and is connected with a compressor; and a frost inducing part is arranged between the compressor and the first evaporating pipe group, and comprises a second evaporating pipe; and a refrigerant is enabled to flow through the second evaporating pipe group from an outlet of the compressor firstly, and then to flow into the first evaporating pipe group, so that the direct-cooling refrigerator not only can achieve the purpose that frost formation amount in a refrigerating chamber decreases remarkably, but also can enable the frost formation part to be effectively controlled.

The invention discloses a frostless refrigerator capable of defrosting through coupling of ultrasonic waves and super-hydrophobic materials, and a control method of the frostless refrigerator. The frostless refrigerator comprises a master controller, an evaporation chamber, a refrigerating chamber, a cold storage chamber, a compressor, a drainage device, an environmental temperature sensor and a magnetic sensitive control air valve, wherein the master controller is separately connected with a ultrasonic wave oscillation system, the compressor, an electric heater, the magnetic sensitive control air valve, a fan, the environmental temperature sensor, a refrigerating chamber temperature sensor, an evaporator temperature sensor and a cold storage chamber temperature sensor, and the ultrasonic wave oscillation system and the electric heater are defrosting devices; the surface of an evaporator, the surface of a refrigerating chamber air channel, the surface of a refrigerating chamber air-return vent, the surface of a cold storage chamber air channel, and the surface of a cold storage chamber air-return channel are made from super-hydrophobic materials. According to the frostless refrigerator and the control method thereof disclosed by the invention, frosting surfaces are treated by using the super-hydrophobic materials, ultrasonic waves and electric heating are coupled, on-line defrosting is performed in a manner that the frostless refrigerator does not stop, the stable running environment of the refrigerator is guaranteed, and the service life of the refrigerator is prolonged.

The invention provides a refrigerator. The refrigerator comprises a storage room, an evaporator, an air inlet duct which introduces dry and cold air passing through the evaporator into the storage room, an air-return duct which introduces wet and hot air in the storage room into the evaporator, and a smell-removing and frost-reducing device used for removing abnormal taste in the refrigerator and reducing frost quantity. The smell-removing and frost-reducing device comprises a purification and moisture-absorption unit and an air-exhausting device which are arranged in the air-return duct, the purification and moisture-absorption unit can adsorb abnormal-taste molecules and water molecules, after being heated, the purification and moisture-absorption unit carries out oxidative decomposition to abnormal-taste molecules and desorbs water molecules, and the air-exhausting device can exhaust abnormal-taste molecules and water vapor out of the refrigerator. The refrigerator can thoroughly eliminate abnormal taste in the refrigerator, and frost reducing and energy saving can be achieved at the same time.

The invention relates to a waste heat utilizing method and a waste heat utilizing system for reducing the frosting degree of an evaporator of an air-source heat pump hot water unit in winter. In order to overcome the defects in energy dissipation and influence on the system stability, which are existed in the existing defrosting technology, the invention provides a technical proposal as follows: domestic hot water after use is pumped into a waste water heat exchanger and then undergoes heat exchange with medium water in the waste water heat exchanger; the medium water after the heat exchange is pumped into a phase-change heat storage device and then flows into an air heater arranged at the air inlet side of the evaporator of the air-source heat pump hot water unit; the medium water flowing out of the air heater then flows into an evaporator of a water source heat pump unit and then flows back into the waste water heat exchanger. By using the method of heating and warming up the air with the waste hot water, the method and the system improve the temperature of the air entering the evaporator, reduce the relative humidity of the air, greatly reduce the frosting possibility, not only save the energy consumed for defrosting, but also increase the heat supply of the unit and enhance the reliability and the stability of operation of the system.

The invention relates to a heat pump air conditioner capable of being defrosted intelligently and a computer-readable storage medium of the heat pump air conditioner. The medium is implemented by a computer program which is memorized on a memorizer and can run on a processor, and the implemention comprises the following steps that after the air conditioner is heated for a period of time, a compressor is controlled to convey a high-temperature and high-pressure refrigerant to an outdoor heat exchanger so as to carry out defrosting on the outdoor heat exchanger; if the duration for the defrosting process is shorter than preset duration, the frosting rate of the shell of an evaporator of the outdoor heat exchanger is judged to be lower than pre-estimated speed, then the timing for carrying out the next-time defrosting is postponed, and after enough frost is accumulated on the shell of the evaporator, the defrosting with the specified duration is carried out to enable the specified duration of the defrosting to be corresponding to the frosting amount to be minimized, so that the waste of heat energy is avoided; and if the duration of the defrosting process is longer than the preset duration, the frosting rate of the shell of the evaporator is judged to be higher than the pre-estimated speed, then the timing for carrying out the next-time defrosting is advanced to reduce the frosting amount on the shell of the evaporator, so that the phenomenon that the defrosting is incomplete in the next defrosting process is avoided.

The invention provides a refrigerator and a frostless refrigerating system thereof. The frostless refrigerating system includes an air duct panel which is arranged in the refrigerator and positioned in the front of a back side liner; an air duct is formed between the air duct panel and the back side liner; an evaporator is arranged in the air duct and can divide the air duct into a front air duct and a back air duct; the back air duct is provided with an air returning opening which communicates with a cavity of the liner, and the front air duct is provided with an air supplying opening which can supply air to the cavity of the liner; a fan can drive air flow to flow to the front air duct from the back air duct; a motor can drive the fan to rotate; and the motor is connected to the fan. According to the refrigerator and the frostless refrigerating system thereof, primary heat exchange is performed when air flow passes through the back part of the evaporator during air returning, secondary heat exchange is performed when the air flow passes through a back air duct of the fan and then passes through the front part of the evaporator during air supplying, and in this way, heat exchange is performed between the front part and the back part of the evaporator and the air flow, the heat exchange distance is prolonged, the heat exchange efficiency is improved, the frosting amount is reduced, power consumption of defrosting is decreased, extra power consumption of defrosting is not required, and energy consumption of the refrigerator is decreased.

The invention discloses a heat exchanger. The heat exchanger comprises a plurality of heat exchange cores arranged in the vertical direction, a first collecting main, a second collecting main and a communicating piece. A heat exchange pipe of the upper heat exchange core of every two adjacent heat exchange cores is communicated with a heat exchange pipe of the lower heat exchange core through the communicating piece. Every two adjacent heat exchange cores are located in the different planes. Due to the fact that every two adjacent heat exchange cores are located in the different planes, condensate water generated by every two adjacent heat exchange cores flows in the different planes, multiple different drainage paths are provided for drainage of condensate water, the drainage amount borne by each drainage path is greatly reduced, the drainage efficiency of the heat exchanger is improved, the frosting speed of the heat exchanger is effectively reduced under the outdoor low-temperature and high-humidity working condition, the frosting amount is reduced, the refrigeration and heat exchange capacity and the heat exchange performance of the heat exchanger are improved, and energy consumption is reduced.

The present invention relates to a refrigerator with prefrosting function. It includes a box body, said box body at least has a cooling chamber, and the interior of said box body is equipped with a cooling air-circulating channel for cooling chamber, and the evaporator of cooling air is placed in the circulating channel. In order to inhibit frost formation of evaporator a prefrosting component formed by using metal component is placed in said refrigerator, said prefrosting component is mounted in the front of evaporator in the cooling air circulating process. Said invention can reduce frost formation of evaporator, the cooling air anjd evaporator can be mutually fully contacted, so that it can raise heat exchange efficiency, and also can prolong the defrosting cycle of evaporator.

The invention discloses a high-temperature sterilization control method of an air conditioner, the air conditioner and a computer storage medium. The method comprises the following steps that when a high-temperature sterilization instruction is received, the air conditioner is controlled to execute a high-temperature sterilization operation corresponding to the high-temperature sterilization instruction, and a first target temperature of the air conditioner is monitored in real time, wherein the first target temperature comprises a first outdoor environment temperature, a first coil pipe temperature of an outdoor unit condenser coil pipe and an outdoor unit exhaust temperature; and if it is monitored that the first target temperature of the air conditioner reaches an air conditioner frosting temperature condition, operating parameters of the air conditioner are adjusted so as to reduce the frosting amount of an outdoor unit when the air conditioner conducts high-temperature sterilization operation, and when the first target temperature of the air conditioner reaches the air conditioner frosting temperature condition in the high-temperature sterilization execution process of the airconditioner, operating parameters of the air conditioner are adjusted, so that the frosting amount of the outdoor unit of the air conditioner during high-temperature sterilization operation is reduced, and the stability of the high-temperature sterilization operation is guaranteed.

The invention discloses a refrigerator and a control method thereof. The refrigerator includes a refrigerator body, a door body and a refrigerating system, wherein the refrigerating system includes a compressor, a condenser, a switch unit, a refrigerating throttler, a freezing throttler, a refrigerating evaporator, and first and second freezing evaporators, wherein the inlet of the refrigerating throttler is connected with the first outlet of the switch unit; the inlet of the freezing throttler is connected with the second outlet of the switch unit; the inlet of the refrigerating evaporator is connected with the outlet of the refrigerating throttler; the inlet of the first freezing evaporator is connected with the outlet of the refrigerating evaporator; the outlet of the first freezing evaporator is connected with the inlet of the compressor; the inlet of the second freezing evaporator is connected with the outlet of the freezing throttler, and the outlet of the second freezing evaporator is connected with the inlet of the compressor; and both the first and the second freezing evaporators are arranged outside the freezing chamber. According to the embodiment provided by the invention, the refrigerator has the advantages of high refrigerating efficiency, low energy consumption and less frosting amount.

The invention discloses an anti-condensation and anti-frosting refrigeration appliance. A liner wall or an evaporator of the refrigeration appliance is manufactured by the following steps of oxidizing a board, and fully impregnating and coating the board and a blown board in a solution; drying and placing the fully impregnated and coated board or blown board in a drying oven for heat curing; machining the heat-cured board to obtain the inner container wall of the refrigeration appliance by using machining equipment, and machining the heat-cured blown board to obtain the evaporator of the refrigeration appliance by using the machining equipment. The inner container wall or the evaporator, manufactured by the steps, of the refrigeration appliance has high hydrophobicity, the condensation of water vapor in an initial stage is inhibited, the positions of condensation nucleuses are transferred, the water vapor is difficult to condensate on the surface of the inner container wall or the evaporator, the heat exchange efficiency is improved, energy is saved, and the environment is protected.

The invention provides a ventilated frost reduction device, a door body and a freezer. The freezer comprises the door body. The ventilated frost reduction device comprises an embedded piece and a molecular sieve assembly. The embedded piece is arranged in the door body and has a first end and a second end; the first end and the second end are communicated; and when the door body is closed, the first end is communicated with the external environment, and the second end is communicated with the interior of the freezer. The molecular sieve assembly is detachably assembled in the embedded piece and used for ventilation and gas filtration. The door body is provided with the ventilated frost reduction device, and the freezer comprises the door body. The ventilated frost reduction device is easy to install in production, productivity can be improved, a filter substance and a drying agent can be replaced, and the excellent performance of the freezer can be kept all the time.

The embodiment of the invention provides a refrigerator and a defrosting method for a refrigerating chamber of the refrigerator and relates to the field of household appliances. The refrigerator and the defrosting method for the refrigerating chamber of the refrigerator can solve the problem that before a compressor restarts, formed frost cannot be completely molten. According to the specific technical scheme, the defrosting method comprises the steps that the temperature value TF in a freezing chamber and the temperature value Trf of the surface of an evaporator heat exchange plate are obtained; and after the compressor stops, when it is confirmed that TF is larger than T5, a compensating heater is switched on, and when it is confirmed that Trf is larger than T3, the compensating heater is switched off, wherein T5 is the temperature threshold, for controlling the heater to be switched on, of the freezing chamber, T3 is the temperature threshold, for controlling defrosting to be ended, of the surface of the evaporator heat exchange plate, T3 is larger than T4 and smaller than T1, T4 is the temperature threshold, for triggering the compressor to be switched off, of the refrigerating chamber, and T1 is the temperature threshold, for triggering the compressor to be switched on, of the refrigerating chamber. The defrosting method for the refrigerating chamber is used for manufacturing of the refrigerator.

The invention relates to the technical field of air conditioners, and discloses a frost inhibition and moisture absorption device for an air conditioner. The frost inhibition and moisture absorption device comprises a filter screen assembly and a regeneration device; the filter screen assembly comprises a filter screen and a moisture absorption material arranged on a filter screen; and the regeneration device is arranged corresponding to the moisture absorption material and is configured to regenerate the moisture absorption material. The moisture absorption material can absorb moisture in theair, so that the moisture in the air exchanging heat with an outdoor heat exchanger is reduced, frosting of the outdoor heat exchanger can be restrained, the frosting amount of low-temperature heating operation of the air conditioner is reduced, and long-time continuous heating operation of the air conditioner is achieved. The regeneration device is arranged, regeneration of the moisture absorption material is achieved, thus repeated utilization of the moisture absorption material is achieved, the moisture absorption material does not need to be replaced in the using process, and thus the frost inhibition and moisture absorption device reduces the product cost while avoiding frosting of the outdoor heat exchanger. The invention further discloses the air conditioner, a method for controlling the air conditioner and a device for controlling the air conditioner.

The invention relates to an air conditioner outdoor unit with a fresh air ventilating and heat recovery system. A fresh air ventilating fan (3), an exhaust fan (4), a heat exchange device (5), an electric heating device (6), an exhaust connecting opening (9), a condenser (11) and a compressor (13) are arranged in the outdoor unit; the inside of the outdoor unit is divided into an upper part and alower part by the exhaust connecting opening (9); a partition in the horizontal direction is arranged in the middle of the upper part of the outdoor unit; the heat exchange device (5) is arranged in the center of the partition and divides the partition into an upper layer and a lower layer; the exhaust fan (4) on the upper layer and the fresh air ventilating fan (3) on the lower layer are mountedon one side of the heat exchange device (5); the electric heating device (6) is arranged on the other side of the heat exchange device (5); and the condenser (11) is arranged on the lower part of theoutdoor unit. By the fresh air ventilating and heat recovery system, exhaust heat can be recycled effectively, and the effect of reducing energy consumption is achieved.

The embodiment of the invention discloses a defrosting method of an air conditioner and the air conditioner, and relates to the technical field of air conditioners. The defrosting method of the air conditioner solves the problem that indoor temperature decreases when an air conditioner is defrosted in winter, and the user experience is low. The specific scheme of the method comprises the followingsteps: acquiring first liquid pipe temperature of a first heat exchanger and second liquid pipe temperature of a second heat exchanger after heating time reaches set threshold; if the first liquid pipe temperature is less than first defrosting temperature threshold, and the second liquid pipe temperature is beyond or equal to the second defrosting temperature threshold, controlling the first heatexchanger to defrost; controlling a first fan to stop running; controlling the second heat exchanger to keep heating; and controlling a second fan to run. The method in the embodiment is applicable to defrosting process of the air conditioner.

The invention provides a refrigerator which comprises a refrigerator box, wherein a cooling chamber and a return air duct are arranged in the refrigerator box; a cooler is equipped in the cooling chamber; the cooling chamber is provided with a first return air inlet and a second return air inlet; the first return air inlet communicates to the upstream of the cooler in the flow direction of gas in the cooling chamber; the second return air inlet communicates to the downstream of the cooler in the flow direction of gas in the cooling chamber; the return air duct communicates to the first return air inlet and the second return air inlet; and the cooling chamber and the return air duct are arranged in the following manner: at least part of gas in the return air duct is allowed to enter the cooling chamber to flow through the cooler from the first return air inlet, is allowed to enter the cooling chamber to bypass the cooler from the second return air inlet, and is mixed with gas flowing through the cooler at the downstream of the cooler. As the special structure of the cooling chamber, part of gas for circulation is enabled not to be cooled by the cooler, at least part of moisture in a refrigeration chamber is prevented from frosting on the cooler while refrigeration is carried out, and frost quantity on the cooler is reduced.

The invention relates to a microchannel heat exchanger. The microchannel heat exchanger is characterized by comprising heat exchange pipes, the outer walls of the heat exchange pipes are provided withflow guide grooves, and the flow guide grooves can collect and guide liquid on the outer walls of the heat exchange pipes so that the accumulated amount of the amount on the outer walls of the heat exchange pipes can be decreased. Condensate water or defrosting water accumulated on the outer walls of the heat exchange pipes can be at least partially collected into the flow guide grooves through the flow guide grooves and discharged through the flow guide grooves, thus, the amount of the water accumulated on the outer walls of the heat exchange pipes can be decreased, the frosting amount of the outer walls of the heat exchange pipes can be decreased under the low-temperature working condition, and the heat exchange efficiency of the heat exchange pipes is improved.

The invention relates to an airflow dehumidification module applied to a refrigerating and freezing device and the refrigerating and freezing device. The refrigerating and freezing device is providedwith a storage chamber; the airflow dehumidification module comprises an air inlet pipe section, a cold transfer dehumidification pipe section and an air outlet pipe section which are sequentially communicated with each other; the air inlet pipe section is communicated with the external environment; the air outlet pipe section is communicated with the storage chamber; a fin assembly used for condensing and dehumidifying the airflow flowing from the external environment to the storage chamber is arranged in the cold transfer dehumidification pipe section, so that the airflow flowing to the storage chamber is dry airflow with extremely low humidity, the amount of the frost in the storage chamber is reduced, and the usage experience of a user is improved; the fin assembly is arranged and is used for enabling the amount of the frost in all the areas to be uniformly distributed; the airflow dehumidification module further comprises a heating device; the heating device is at least arranged on the outer wall of at least part of a pipe body of the cold transfer dehumidification pipe section and is used for accelerating thawing of the frost generated by the fin assembly; the heat generatedby the heating device on the outer wall of the at least part of the pipe body is uniformly distributed; and the frost thawing uniformity of the fin assembly is improved.

The invention discloses a heat exchanger used for a refrigerator and a manufacturing method of the heat exchanger. The heat exchanger used for the refrigerator comprises a heat exchange tube and a plurality of fins, wherein the fins are arranged on the heat exchange tube at intervals; each fin is provided with a mounting part and a plurality of fan-shaped blades; the fan-shaped blades are connected with the mounting part and are arranged at intervals along the circumferential direction of the mounting part; the mounting part is provided with an axial mounting hole; the heat exchange tube passes through the axial mounting hole and is matched inside the axial mounting hole so that the fins are arranged on the heat exchange tube. The heat exchanger used for the refrigerator according to the embodiment of the invention has the advantages of being high in heat exchange efficiency, small in frost quantity, easy to defrost, and the like.

The invention discloses a multistage finned tube capable of restraining frost formation and intensifying natural convection. The multistage finned tube comprises a central tube, a plurality of primary longitudinal fins which are distributed in a star manner and secondary fins connected with the primary longitudinal fins. The surfaces of the secondary fins are parallel to the axis of the central tube, and the outer space of the central tube is divided into a plurality of longitudinal parallel channels by the secondary fins. The finned tube can form a sealed air flow channel through the primary fins and the secondary fins. The secondary fins of the finned tube can prevent steam in air from being conveyed to the roots of the fins from the outer space of the finned tube, the steam can only enter from the top space of the finned tube, and the frost formation is restrained. The large specific surface area of the secondary fins enlarges the distribution area of frost, improves the frost distribution evenness, prevents frost from piling at the root of the central tube and the roots of the primary fins, enables the frost thickness on the surfaces of the fins to become thin, reduces the heat transfer resistance and quickens the defrosting speed. By means of the large specific surface area of the secondary fins, the heat exchange area on the air side is enlarged, and heat exchange is intensified.

The invention provides a refrigerator. The refrigerator comprises an inner container, an air supply fan, a storage container and an oxygen removal assembly; a storage chamber as well as an evaporator cavity and an air supply duct which are located on the back side of the storage chamber and used for containing an evaporator is formed in the inner container; the air supply fan is arranged in the air supply duct and is configured to promote formation of air flow circulating among the evaporator cavity, the air supply duct and the evaporator cavity; the storage container is arranged in the storage chamber; the oxygen removal assembly is arranged above the storage container and is provided with an electrolysis part which faces the outside of the storage container and is used for electrolyzing water vapor outside the storage container through electrochemical reaction and an oxygen consumption part which faces the inside of the storage container and is used for consuming oxygen through electrochemical reaction; and the air supply fan is further configured to continuously operate at the first preset rotating speed after a refrigeration system of the refrigerator completes refrigeration to supplement the storage chamber with the water vapor, so that enough water vapor can be provided for the oxygen removal assembly to serve as a reactant, and the electrolytic oxygen removal efficiency can be improved.

The invention relates to the technical field of refrigeration, and discloses a refrigerator and a refrigerating method thereof. The refrigerator comprises a box body, an interlayer and an evaporator,wherein a first chamber and a second chamber are constructed inside the box body correspondingly, the first chamber and the second chamber are arranged at intervals; the interlayer is arranged betweenthe first chamber and the second chamber, an air supply port and an air return port are constructed in the side wall of the interlayer correspondingly, wherein the interlayer and the first chamber form a refrigeration circulation loop through the air supply port and the air return port; the evaporator is arranged in the interlayer; and a part of cooling capacity released by the evaporator is transmitted to the first chamber through the air supply port to be used for refrigerating the first chamber, and the other part of the cooling capacity released by the evaporator is directly transferred to the second chamber through a heat exchange mode to be used for refrigerating the second chamber. The refrigerator has the advantages that the refrigeration efficiency is high, the occupied space issaved, and loss of the cooling capacity is reduced.

The invention relates to the technical field of air conditioners, and discloses an anti-frosting and humidifying device. The device comprises a filtering screen, a moisture absorbing material and a driving device, wherein the moisture absorbing material is arranged on the filtering screen, and the driving device is in drive connection with the filtering screen and is configured to drive the filtering screen to move between an anti-frosting position and a humidifying position. According to the device, air passes through an outdoor heat exchanger after being subjected to moisture absorbing by the moisture absorbing material on the filtering screen, and due to the fact that the moisture absorbing material can absorb moisture in the air, the moisture in the air exchanging heat with the outdoorheat exchanger is reduced, frosting of the outdoor heat exchanger can be restrained, the frosting amount of low-temperature heating operation of an air conditioner is reduced, the long-time continuous heating operation of the air conditioner is achieved, the defects that the air conditioner is reduced in heating capacity, increased in operation power and reduced in energy efficiency due to frosting are overcome, defrosting on the outdoor heat exchanger is not needed, and then the defect that the user experience is poor due to defrosting operation is overcome. The invention further discloses the air conditioner and an outdoor unit of the air conditioner.

The invention discloses a refrigerating box and a humidity control method for the refrigerating box. The refrigerating box comprises a box body, a humidity detection element arranged in the box body, a refrigeration circulation loop, a draught fan assembly, a first evaporator, a second evaporator, a first control valve assembly, a bypass defrosting channel, a second control valve assembly and a controller. The first evaporator and the second evaporator are connected in parallel. The first control valve assembly is connected to the refrigeration circulation loop and used for controlling the first evaporator and the second evaporator to operate alternately. The bypass defrosting channel is connected between a gas-liquid separator and the gas outlet side of a compressor and used for enabling a refrigerant flowing out of the gas outlet side of the compressor to flow through the first evaporator and the second evaporator or sequentially flow through the first evaporator and the second evaporator. The second control valve assembly is used for controlling the on-off of the bypass defrosting channel. The controller is in communication connection with the humidity detection element, the first control valve assembly and the second control valve assembly. According to the refrigerating box and the humidity control method for the refrigerating box, the problems that in the prior art, a temperature and humidity double-control refrigerating box is large in frosting amount, long in defrosting time, uneven in defrosting and low in defrosting efficiency are solved.

A refrigerator comprises a frost resisting apparatus (1) used for communicating the interior with the exterior of the refrigerator. The frost resisting apparatus (1) comprises a dehumidification tube (10), and a dehumidification agent is filled in the dehumidification tube (10). The refrigerator is further provided with a water-proof gas-permeable membrane, the water-proof gas-permeable membrane being close to an inner side of a refrigerator body. An external opening is disposed on a back of a refrigerator case (3) of the refrigerator, and an internal opening is disposed on a refrigerator opening (2) of the refrigerator. One of the dehumidification tube (10) is connected to the external opening, and the other end is connected to the internal opening. A refrigerator case connector (30) with an air hole is disposed on the external opening, and a refrigerator opening connector (20) with an air hole is disposed in the internal opening. The dehumidification tube (10) is connected to the refrigerator opening connector (20) through a soft pipe (40). The refrigerator can effectively reduce frosting quantity in the refrigerator body, extend the defrosting cycle for a user, and reduce energy consumption.