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

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 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 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 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 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 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.