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39results about How to "Improve defrosting" patented technology
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Defrosting control method and system and air conditioner
ActiveCN106705303AGuaranteed timelinessGuaranteed validityMechanical apparatusSpace heating and ventilation safety systemsFour-way valveEngineering
The invention provides a defrosting control method and system and an air conditioner. The defrosting control method comprises the steps that the air conditioner detects system parameters under the heating mode; if the system parameters achieve the preset defrosting condition, a stop valve is controlled to be closed, and an electric heating part works; the work duration of the electric heating part is recorded, the temperature of a heat storage device is detected, the temperature T0 of the heat storage device after the first preset duration and the temperature Ti of the heat storage device after the second preset duration are recorded, if the temperature difference of the heat storage device is larger than the preset temperature difference, the electric heating part is controlled to stop working, the stop valve is started, a four-way valve is reversed to enable the air conditioner to carry out defrosting under the refrigeration mode, or, ending is carried out; according to the defrosting control method, the air conditioner performs defrosting under the heating mode, the good defrosting effect and the good heating effect are ensured, use comfort of a user is improved, when the temperature rise of the heat storage device is high, and the heat storage material is not sufficient, the four-way valve is reversed to enable the air conditioner to carry out defrosting under the refrigeration mode, the good defrosting effect is ensured, and the use satisfaction of the user is improved.
Owner:WUHAN REFRIGERATION EQUIP OF MIDEA GROUP +1
Defrosting heater, evaporator assembly of refrigerating equipment and refrigerator with same
ActiveCN101957117AIncrease temperatureIncrease contact areaEvaporators/condensersCompression machines using turbinesEngineeringRefrigerated temperature
The invention discloses a defrosting heater. The defrosting heater is suitable for being arranged at an evaporator of refrigerating equipment and between water collecting disks under the evaporator. The defrosting heater comprises a first heating pipe, a second heating pipe and a connecting pipe, wherein the first heating pipe is suitable for being close to the bottom surface of the evaporator and parallel to the bottom of the evaporator; both ends of the second heating pipe are respectively inclined to the middle along the direction from the bottom surface of the evaporator to drainage openings of the water collecting disks; and the connecting pipe is in a U shape and is used for connecting the first ends of the first heating pipe and the second heating pipe. The defrosting heater of the embodiment of the invention prevents the secondary freezing of defrosted residual ice at the water collecting disks and the drainage openings so as to solve the problem of drainage opening blockage or defrosting water overflow. The invention also discloses an evaporator assembly of refrigerating equipment with the defrosting heater and a refrigerator with same.
Owner:HEFEI MIDEA REFRIGERATOR CO LTD +1
Air-cooling refrigerator
ActiveCN102345954AImprove defrostingEasy to blowLighting and heating apparatusDomestic refrigeratorsCold airWater vapor
The invention discloses an air-cooling refrigerator which comprises a refrigerator body, a door body, an air passage, an evaporator, a water receiving disk, a fan, an air inlet pipe and an air return pipe, wherein the refrigerator body is provided with a refrigerating chamber and a freezing chamber adjacent to the refrigerating chamber; the air passage is formed in the rear wall of the refrigerating chamber; the evaporator is arranged in the air passage and is adjacent to the refrigerating chamber; the water receiving disk is arranged below the evaporator in the air passage and is used for receiving defrosted water flowing down from the evaporator; the fan is arranged in the air passage and is used for blowing and sending cold air towards the refrigerating chamber and the freezing chamber; water vapour obtained by evaporating the defrosted water is blown into the refrigerating chamber by the fan; a first end of the air inlet pipe is communicated with the air passage, and a second end of the air inlet pipe is communicated with the freezing chamber; and a first end of the air return pipe is communicated with the freezing chamber, and a second end of the air return pipe is communicated with the air passage. According to the air-cooling refrigerator disclosed by the embodiment of the invention, the relative humidity in the refrigerating chamber can be improved.
Owner:HEFEI MIDEA REFRIGERATOR CO LTD +1
Heat pump system
ActiveCN103743156AExtended run timeShorten defrosting timeMechanical apparatusHeat pumpsWork patternEngineering
The invention provides a heat pump system. The heat pump system comprises at least one reversing valve, a compressor, at least one indoor heat exchanger, at least one outdoor heat exchanger and at least one throttling device. The outdoor heat exchanger comprises at least two independent flow paths and has three alternative work patterns, wherein the at least two independent flow paths in the outdoor heat exchanger respectively run as an evaporator when the first work pattern is selected, at least one of the at least two independent flow paths in the outdoor heat exchanger is at least partly used for defrosting and the rest of the at least two independent flow paths respectively run as the evaporator when the second work pattern is selected, and the at least two independent flow paths in the outdoor heat exchanger respectively run as a condenser when the third work pattern is selected.
Owner:DANFOSS MICRO CHANNEL HEAT EXCHANGER JIAXING
Air conditioner and defrosting method thereof
ActiveCN104990321AImprove defrostingImprove defrosting speedMechanical apparatusCorrosion preventionFour-way valveRoom temperature
The invention relates to an air conditioner and a defrosting method thereof. The air conditioner comprises a compressor, an outdoor heat exchanger and an indoor heat exchanger, wherein the compressor, the outdoor heat exchanger and the indoor heat exchanger are communicated through a pipeline. The air conditioner further comprises a first four-way valve and a second four-way valve. The first four-way valve comprises a port a1, a port b1, a port c1 and a port d1. The second four-way valve comprises a port a2, a port b2, a port c2 and a port d2. An outlet of the compressor is communicated with the port a1 through a pipeline, and an inlet of the compressor is communicated with the port c1 through a pipeline. The two ends of the outdoor heat exchanger are communicated with the port b2 and the port d2 through pipelines respectively. The two ends of the indoor heat exchanger are comminuted with the port b1 and the port c2 through pipelines respectively. The port d1 and the port a2 are communicated through a pipeline. Through control over on-off of the two four-way valves, switching between a heating mode and a defrosting mode is achieved, so that the defrosting speed is increased, the defrosting effect is improved, and large fluctuation of the room temperature is avoided.
Owner:GD MIDEA AIR-CONDITIONING EQUIP CO LTD +1
Air conditioner, defrosting control method and defrosting control system
ActiveCN106705302AImprove timelinessGuaranteed validityMechanical apparatusSpace heating and ventilation safety systemsElectricityFour-way valve
The invention provides an air conditioner, a defrosting control method and a defrosting control system. The air conditioner comprises a compressor, an indoor heat exchanger, an outdoor heat exchanger, a four-way valve, a throttling device, a heat accumulating assembly and a stop valve, wherein the heat accumulating assembly is arranged between the four-way valve and the outdoor heat exchanger, comprises a heat accumulator, a water feeding device, an electric heating piece, a first temperature detecting device and a second temperature detecting device; and the stop valve is arranged between the four-way valve and the outdoor heat exchanger, and is connected in parallel with the heat accumulating assembly. According to the air conditioner disclosed by the invention, the heat accumulating assembly enables the air conditioner to perform defrosting under a heating mode, so that the favorable defrosting effect and the favorable heating effect are guaranteed, and the usage comfort of users is improved; when heat accumulating materials are short of water and the defrosting effect is poor, the water can be supplied by the water feeding device, and the four-way valve is switched, so that the air conditioner performs defrosting under a refrigeration mode, and the favorable defrosting effect is guaranteed; and after water supply is completed, the four-way valve is switched, so that the air conditioner performs defrosting under the heating mode, and the usage comfort of the users is improved.
Owner:WUHAN REFRIGERATION EQUIP OF MIDEA GROUP +1
Heat accumulation component and air conditioner
ActiveCN106546118AQuality improvementExtended service lifeHeat storage plantsAir conditioning systemsElectricityEngineering
The invention provides a heat accumulation component and an air conditioner. The heat accumulation component comprises a heat accumulator and at least one electric heating element, wherein the heat accumulator is provided with at least one fin and a cavity; the cavity is used for accommodating a heat accumulation material; the at least one electric heating element is arranged on the heat accumulator; the at least one fin is positioned at the periphery of the at least one electric heating element and is perpendicular to a cross section of the at least one electric heating element. According to the heat accumulation component provided by the invention, the condition that the heat accumulation material flows to be dispersed and further is liable to ice due to the parallelism of the fins and the cross sections of the electric heating elements is avoided; meanwhile, the phenomenon that a heat radiating effect is affected by fin deformation due to the fact that the heat accumulation material is iced and then expands is avoided, a refrigerant is effectively enabled to be uniform in heating and is subjected to sufficient heat exchange, further a good and stable defrosting effect and a heating effect are guaranteed, and the use experience of a user is improved; meanwhile, the service life of the fins is prolonged, the integral quality of the heat accumulation component is improved, and the use satisfaction degree of the user is improved.
Owner:WUHAN REFRIGERATION EQUIP OF MIDEA GROUP +1
Control method of air-cooled refrigerator and air-cooled refrigerator
ActiveCN111503994AAvoid spoilageEasy to defrostLighting and heating apparatusCooling fluid circulationIceboxProcess engineering
The invention discloses a control method of an air-cooled refrigerator and the air-cooled refrigerator. The control method comprises the following steps that whether the air-cooled refrigerator meetsa defrosting condition or not is judged in a refrigeration process of the air-cooled refrigerator; if the defrosting condition is met, a compressor of the air-cooled refrigerator is controlled to be shut down, meanwhile, a freezing fan of the air-cooled refrigerator is controlled to continue to operate, and whether the freezing fan meets the shutdown condition or not is judged in real time; and ifthe freezing fan meets the shutdown condition, the freezing fan is controlled to be shut down, the air-cooled refrigerator is controlled to enter a defrosting mode, and a defrosting device is startedfor defrosting. According to the control method of the air-cooled refrigerator, the shutdown of the freezing fan is controlled through judging the shutdown time of the freezing fan in real time, so that the air-cooled refrigerator makes full use of the residual cooling capacity of an evaporator, the situation of food deterioration caused by large temperature change of a freezing chamber due to defrosting is prevented, and it can also be ensured that the time needed for the air-cooled refrigerator to enter the refrigeration mode again and reach the freezing temperature is shortened.
Owner:HEFEI MIDEA REFRIGERATOR CO LTD +2
Defrosting device for window glass in cab of excavator
PendingCN108715159AReduce the difficulty of cleaningImprove defrostingCleaning apparatus for vehicle exteriorsSpray nozzleEngineering
The invention discloses a defrosting device for window glass in a cab of an excavator, and belongs to the technical field of excavator accessories. The device comprises a wiping block A and a wiping block B which are arranged oppositely, magnets of two circles are embedded into the opposite faces of the wiping block A and the wiping block B respectively, and the wiping block A and the wiping blockB are connected through magnet attraction. Flexible flannelette covers the face, opposite to the wiping block B, of the wiping block A, and a handholding part is arranged on the other face of the wiping block A; a heating device is arranged inside the wiping block B, a circle of flexible scraper plate and multiple scraping strips are arranged on the face, opposite to the wiping block A, of the wiping block B, and the scraping strips are arranged in the circle defined by the flexible scraping plate; a liquid storage bin is arranged on the other face of the wiping block B, and an ultrasonic spray nozzle is arranged at an outlet of the liquid storage bin. The defrosting device is simple and reasonable in structure, easy to produce and manufacture and easy and convenient to use, lowers the difficulty when frost on the window outer glass in the cab of the excavator is cleared, reduces defrosting work in a severe cold environment, and has broad market space.
Owner:句容靖昌生态农业有限公司
Air conditioner outdoor unit and air conditioner
InactiveCN106440099ASmooth drainageEasy to drainCondensate preventionLighting and heating apparatusEngineeringDefrosting
The invention relates to the technical field of air conditioners, in particular to an air conditioner outdoor unit. The air conditioner outdoor unit comprises a shell, wherein a fan cavity is formed in the shell; condensers are arranged in the fan cavity; and the fan cavity is divided into an upper cavity and a lower cavity from top to bottom by the condensers. According to the air conditioner outdoor unit provided by the invention, the condensers are arranged in the fan cavity and divide the fan cavity into the upper cavity and the lower cavity, then pipes of each condenser are slightly inclined relative to the horizontal plane or are parallel to the horizontal plane, in other words, at the moment, the pipes of each condenser are not vertical pipes in the vertical direction, influence of upper pipes to lower pipes is avoided in water draining and defrosting processes of each condenser, condensate water can directly flow down under the effect of gravity, so that a water draining mode is optimized, water draining is smooth, water draining and defrosting of the condensers are facilitated, frosting speed of the condensers is reduced effectively, and the heat exchange efficiency of the condensers is improved. The invention further provides an air conditioner.
Owner:GREE ELECTRIC APPLIANCES INC
Defrosting control method and device of air conditioning unit and air conditioning unit
ActiveCN113294890AImprove use comfort performanceImprove defrostingMechanical apparatusSpace heating and ventilation safety systemsControl engineeringProcess engineering
The invention provides a defrosting control method and device of an air conditioning unit and the air conditioning unit, and relates to the field of air conditioners. The defrosting control method comprises the following steps that a current moment is acquired; whether the current moment is within the night time period or not is judged; if yes, defrosting is conducted according to acquired on-off states of all indoor units; and if not, whether the current moment meets the preprocessing condition or not is judged, and if yes, preprocessing is carried out. According to the defrosting control method, different processing modes are adopted according to different current moments, and if the current moment meets the preprocessing condition, preprocessing is carried out so as to optimize the defrosting process in the night time period; and if the current moment is in the night time period, the working state of the air conditioning unit is refined, defrosting operation is adopted according to the on-off states of all the indoor units, so that the defrosting operation of the air conditioning unit in different working states is more targeted, therefore, refrigerant flowing noise during defrosting can be reduced, and the use comfort of a user can be improved.
Owner:NINGBO AUX ELECTRIC +1
Defrosting structure and air conditioner with defrosting structure
InactiveCN104061726AAccurate detectionImprove defrostingCorrosion preventionRefrigeration componentsEngineeringEvaporator
The invention provides a defrosting structure and an air conditioner with the defrosting structure. The defrosting structure comprises an evaporator, a plug board and a temperature sensing bag, wherein the evaporator is provided with a fin and an evaporator pipeline arranged on the first side of the fin; the plug board comprises a first connection end and a second connection end, the first connection end and the evaporator pipeline are fixed in a clamping connection mode, and the second connection end is arranged on the second side of the fin; the temperature sensing bag is matched with the second connection end in a clamping connection mode, the distance between the outer surface of the temperature sensing bag and the fin of the evaporator is H, and H is larger than 0 mm and smaller than or equal to 1.85 mm. According to the defrosting structure, the plug board is arranged, the distance H between the temperature sensing bag and the evaporator pipeline is adjusted so that H can be larger than 0 mm and smaller than or equal to 1.85 mm, the temperature sensing bag can accurately detect whether the evaporator is frosted, and the aim of defrosting is achieved conveniently.
Owner:GREE ELECTRIC APPLIANCES INC
Finned tube type evaporator
InactiveCN109506397AReduce the impactHigh strengthEvaporators/condensersHeat exhanger finsEngineeringTubes types
The invention discloses a finned tube type evaporator. The finned tube type evaporator comprises a tube body, a fine and side plates; the fin comprises a first fin and a second fin; the first fin andthe second fin are both inserted in the tube body; the side plates are mounted at two ends of the tube body; and inner ribs are uniformly arranged on the inner wall of the tube body. The device is small in size, and adopts an aluminum tube to replace a traditional copper tube to reduce the device cost and the device weight; the first fin and the second fin are arranged at the external of the tubebody of the device, and the inner ribs are arranged in the tube body, so that the heat dissipating area of the overall structure is increased, the defrosting is facilitated, the influence on air flowing by frosting is reduced, normal air flowing of the evaporator is guaranteed, the heat exchange efficiency is improved, and the energy consumption is reduced; and a connecting head matched with a connecting piece is arranged at the outer end of the first fin of the device, and the outer end of the second fin disconnected with other parts is arranged as a circle, so that a finned tube is not easyto scratch objects during mounting, the strength of fins is improved, and the service life is prolonged.
Owner:NINGBO DEYE TECHNOLOGY CO LTD
Air conditioner frost control method
ActiveCN110836461AFrosting evenlyImprove defrostingMechanical apparatusSpace heating and ventilation safety systemsAir velocityEngineering
The invention belongs to the technical field of air conditioners, and particularly relates to an air conditioner frosting control method. In order to ensure frosting uniformity of an air conditioner to improve the defrosting efficiency, a provided air conditioner defrosting control method is directed to an air conditioner provided with dual fans on an outdoor unit. The method includes the following steps that during heating operation of the air conditioner, the temperature of an outer coil is detected; in the case where the temperature of the outer coil is lower than a dew point temperature, the current of the upper fan and the current of the lower fan are detected every preset time; calculating is conducted according to a formula of delta I=|I upper-I lower|; if deltaI is greater than 0.01 A, and I upper> I lower, the rotation speed of the upper fan is increased by a first preset number of revolutions. Non-uniformity of temperature points of the outer coil of an outdoor heat exchanger is balanced by controlling magnitudes of wind speeds in different regions of the outer coil, and frosting uniformity is further rationally controlled, so that frosting of the outdoor unit is more uniform, and frosting uniformity is conducive to defrosting, that is, the defrosting efficiency is improved.
Owner:CHONGQING HAIER AIR CONDITIONER CO LTD +2
Air-cooled refrigerator control method and air-cooled refrigerator
ActiveCN111503994BImprove defrostingLighting and heating apparatusCooling fluid circulationIceboxRefrigeration temperature
Owner:HEFEI MIDEA REFRIGERATOR CO LTD +2
Air Conditioner Frosting Control Method
ActiveCN110836495BFrosting evenlyImprove defrostingMechanical apparatusSpace heating and ventilation safety systemsThermodynamicsEngineering
The invention belongs to the technical field of air conditioners, and in particular relates to a frosting control method for an air conditioner. In order to ensure the uniformity of frosting of the air conditioner and improve the defrosting efficiency, the air conditioner defrosting control method proposed in the present invention is aimed at the air conditioner with dual fans on the outdoor unit. The method includes: during the heating operation of the air conditioner, detecting The temperature of the upper part of the coil t 上 and the temperature t of the lower part of the outer coil 下 ; at t 上 ≤ dew point temperature and t 下 ≤ dew point temperature, detect the current I of the upper fan 上 and the current I of the lower fan 下 ; if I 上 >I 下 , then the speed of the fan under control increases the first preset number of revolutions; if I 上 <I 下 , then control the speed of the fan to increase the first preset number of revolutions; if I 上 = I 下 , then control the speed of the upper fan and the lower fan to be equal. The invention can reasonably control the uniformity of frosting, so that the frosting of the external machine is more uniform, and the uniformity of frosting is beneficial to defrosting, that is, the defrosting efficiency is improved.
Owner:QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD +1
Frosting control method of air conditioner
ActiveCN110836495AFrosting evenlyImprove defrosting efficiencyMechanical apparatusSpace heating and ventilation safety systemsEngineeringElectrical and Electronics engineering
The invention belongs to the technical field of air conditioners, and particularly relates to a frosting control method of an air conditioner. In order to guarantee frosting uniformity of the air conditioner to improve defrosting efficiency, the defrosting control method of the air conditioner is provided for the air conditioner provided with double fans on an outdoor unit. The method comprises steps as follows: detecting a temperature t(upper) of the upper part of an outer coil pipe and a temperature t(lower) of the lower part of the outer coil pipe in a heating operation process of the air conditioner; detecting current I(upper) of an upper fan and current I(lower) of a lower fan under the conditions that t(upper) is lower than or equal to a dew point temperature and t(lower) is lower than or equal to the dew point temperature; controlling the revolution speed of the lower fan to be increased by first preset number of revolution if I(upper) is larger than I(lower); controlling the revolution speed of the upper fan to be increased by first preset number of revolution if I(upper) is smaller than I(lower); and controlling revolution speeds of the upper fan and the lower fan to be equal if I(upper) is equal to I(lower). According to the method, frosting uniformity can be controlled reasonably, frosting of the outdoor unit is more uniform, defrosting is facilitated by the aid of uniform frosting, and the defrosting efficiency is improved.
Owner:QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD +1
Air-cooled frostless double-door refrigerator
PendingCN114484979AImprove defrostingEffective sweeping effectLighting and heating apparatusDomestic refrigeratorsPhysicsEngineering
The air-cooled frostless double-door refrigerator comprises an evaporator chamber, a press bin, a control device and a ventilation pipeline communicating the evaporator chamber with the press bin, a draught fan and a baffle used for opening or closing the ventilation pipeline are arranged in the ventilation pipeline, and the control device controls the draught fan to rotate in the first rotating direction; the air-cooled frostless double-door refrigerator is characterized in that an evaporator compartment is arranged in the compressor bin, an auxiliary device for assisting the surface of the evaporator in defrosting is arranged in the evaporator compartment, a communicating mechanism is connected between the evaporator compartment and the bottom of the compressor bin, and a balance mechanism for driving the communicating mechanism to be opened and closed is arranged between the communicating mechanism and the evaporator compartment. And the fan sucks hot air into the evaporator chamber, and meanwhile, the sweeping plate is driven to sweep frost on the surface of the evaporator and accelerate falling of frost, so that the defrosting effect on the surface of the evaporator is improved, and it is ensured that the evaporator is effectively defrosted within the first steering operation time.
Owner:NINGBO HANDIAN ELECTRIC APPLIANCE
Air Conditioner Frosting Control Method
ActiveCN110836461BFrosting evenlyImprove defrostingMechanical apparatusSpace heating and ventilation safety systemsAir velocityEngineering
Owner:CHONGQING HAIER AIR CONDITIONER CO LTD +2
Heat storage components and air conditioners
ActiveCN106546118BImprove defrostingFast defrostingHeat storage plantsAir conditioning systemsElectricityEngineering
Owner:WUHAN REFRIGERATION EQUIP OF MIDEA GROUP +1
Defrost control method, defrost control system and air conditioner
ActiveCN106705303BEfficient use ofAvoid wastingMechanical apparatusSpace heating and ventilation safety systemsFour-way valveEngineering
The invention provides a defrosting control method and system and an air conditioner. The defrosting control method comprises the steps that the air conditioner detects system parameters under the heating mode; if the system parameters achieve the preset defrosting condition, a stop valve is controlled to be closed, and an electric heating part works; the work duration of the electric heating part is recorded, the temperature of a heat storage device is detected, the temperature T0 of the heat storage device after the first preset duration and the temperature Ti of the heat storage device after the second preset duration are recorded, if the temperature difference of the heat storage device is larger than the preset temperature difference, the electric heating part is controlled to stop working, the stop valve is started, a four-way valve is reversed to enable the air conditioner to carry out defrosting under the refrigeration mode, or, ending is carried out; according to the defrosting control method, the air conditioner performs defrosting under the heating mode, the good defrosting effect and the good heating effect are ensured, use comfort of a user is improved, when the temperature rise of the heat storage device is high, and the heat storage material is not sufficient, the four-way valve is reversed to enable the air conditioner to carry out defrosting under the refrigeration mode, the good defrosting effect is ensured, and the use satisfaction of the user is improved.
Owner:WUHAN REFRIGERATION EQUIP OF MIDEA GROUP +1
Defrosting heater, evaporator assembly of refrigerating equipment and refrigerator with same
ActiveCN101957117BAvoid secondary freezingPrevent overflowEvaporators/condensersCompression machines using turbinesEngineeringRefrigerated temperature
The invention discloses a defrosting heater. The defrosting heater is suitable for being arranged at an evaporator of refrigerating equipment and between water collecting disks under the evaporator. The defrosting heater comprises a first heating pipe, a second heating pipe and a connecting pipe, wherein the first heating pipe is suitable for being close to the bottom surface of the evaporator and parallel to the bottom of the evaporator; both ends of the second heating pipe are respectively inclined to the middle along the direction from the bottom surface of the evaporator to drainage openings of the water collecting disks; and the connecting pipe is in a U shape and is used for connecting the first ends of the first heating pipe and the second heating pipe. The defrosting heater of theembodiment of the invention prevents the secondary freezing of defrosted residual ice at the water collecting disks and the drainage openings so as to solve the problem of drainage opening blockage or defrosting water overflow. The invention also discloses an evaporator assembly of refrigerating equipment with the defrosting heater and a refrigerator with same.
Owner:HEFEI MIDEA REFRIGERATOR CO LTD +1
Air Conditioner Frosting Control Method
ActiveCN110836462BFrosting evenlyImprove defrostingMechanical apparatusSpace heating and ventilation safety systemsAir velocityProcess engineering
Owner:QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD +1
Heat storage components and air conditioners
ActiveCN106595365BImprove defrostingFast defrostingHeat storage plantsAir conditioning systemsHeating effectEngineering
The invention provides a heat accumulation assembly and an air conditioner. The heat accumulation assembly comprises a heat accumulator, at least one heat exchange tube and at least one electric heating part, wherein the heat accumulator is provided with at least one fin and a cavity, and the cavity is used for containing heat accumulation materials; the heat exchange tubes are mounted on the heat accumulator and used for circulation of coolants; the electric heating parts are arranged on the heat accumulator; the fins are located on the peripheries of the electric heating parts and are parallel to the cross sectional surfaces of the electric heating parts. According to the heat accumulation assembly provided by the invention, the heat transfer area of the electric heating parts is effectively increased; by increasing the heat absorption area of the coolants circulating in the heat exchange tubes, the coolants can conduct heat exchange sufficiently and continuously so as to maintain a high temperature to facilitate fast, timely and complete defrosting of an outdoor heat exchanger, and then the good defrosting effect and the stable heating effect are guaranteed. The use comfortable degree of users is promoted. The electric heating parts can conduct heating uniformly, the requirements under different working conditions can be met, and the application range is wide.
Owner:WUHAN REFRIGERATION EQUIP OF MIDEA GROUP +1
Air conditioner and defrosting method thereof
ActiveCN104990321BIt has the function of throttling and reducing pressureDifferent wind effectsMechanical apparatusCorrosion preventionFour-way valveControl theory
The present invention relates to an air conditioner and its defrosting method. The air conditioner of the present invention includes a compressor, an outdoor heat exchanger and an indoor heat exchanger communicated through pipelines, and also includes a first four-way valve and a second four-way valve. The first four-way valve includes a1 port, b1 port, c1 port and d1 port, the second four-way valve includes a2 port, b2 port, c2 port and d2 port, the outlet of the compressor is connected with the a1 port through a pipeline, and the The inlet is connected to port c1 through pipes, the two ends of the outdoor heat exchanger are connected to port b2 and port d2 through pipes, the two ends of the indoor heat exchanger are connected to port b1 and port c2 through pipes, and the ports d1 and a2 are connected through pipes . The invention realizes the switching between the heating mode and the defrosting mode by controlling the power-on and power-off of the two four-way valves, thereby speeding up the defrosting speed, improving the defrosting effect, and avoiding large fluctuations in room temperature.
Owner:GD MIDEA AIR-CONDITIONING EQUIP CO LTD +1
Air conditioner frosting control method
ActiveCN110836462AFrosting evenlyImprove defrostingMechanical apparatusSpace heating and ventilation safety systemsAir velocityEngineering
The invention belongs to the technical field of air conditioners, and particularly relates to an air conditioner frosting control method. In order to ensure the frosting uniformity of the air conditioner and improve the defrosting efficiency, the air conditioner defrosting control method, for an air conditioner with double fans arranged on an outdoor unit, comprises the following steps of S110, during heating operation of the air conditioner, detecting current Ia of the upper fan and current Ib of the lower fan at preset time intervals, and S120, selectively adjusting the rotating speeds of the upper fan and / or the lower fan according to the attenuation speeds of Ia and Ib. The nonuniformity of temperature points of an outer coil of an outdoor heat exchanger is balanced by controlling theair speed in different areas of the outer coil, and further the frosting uniformity is reasonably controlled, so that the frosting of the outdoor unit is more uniform; and uniform frosting is beneficial to defrosting, that is, the defrosting efficiency is improved.
Owner:QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD +1
Air conditioner frosting control method
ActiveCN110836496AFrosting evenlyImprove defrosting efficiencyMechanical apparatusSpace heating and ventilation safety systemsPhysicsEngineering
The invention belongs to the technical field of air conditioners, and particularly relates to an air conditioner frosting control method. In order to ensure the uniformity of frosting of an air conditioner to improve the defrosting efficiency, an air conditioner defrosting control method is applied to an air conditioner provided with double fans on an outdoor unit. The air conditioner frosting control method comprises the following steps that the temperature t<upper> of the upper part of an outer coil pipe and the temperature t<lower> of the lower part of the outer coil pipe are detected in the heating operation process of the air conditioner; and under the condition that the t<upper> is greater than the dew point temperature and the t<lower> is greater than the dew point temperature, if the t<upper> is greater than the t<lower>, the rotational speed of the lower fan is increased by first preset number of revolutions, and the rotational speed of the upper fan is decreased by the firstpreset number of revolutions. According to the air conditioner frosting control method, the nonuniformity of temperature point of the outer coil pipe of an outdoor heat exchanger is balanced by controlling the wind speed size of different areas of the outer coil pipe, and then the uniformity of frosting is reasonably controlled, so that the frosting of the outdoor unit is more uniform, and uniformfrosting facilitates defrosting, namely, the defrosting efficiency is improved.
Owner:CHONGQING HAIER AIR CONDITIONER CO LTD +2
Refrigerator with frost removal reminding function
InactiveCN104422244AImprove the cooling effectSave electricityLighting and heating apparatusDefrostingRefrigerator carFrost
The invention relates to a household electronic product, in particular to a refrigerator with the frost removal reminding function. The refrigerator comprises a refrigerator body, rolling wheels arranged at the bottom of the refrigerator body and a gate arranged on the refrigerator body. The gate is provided with a timer in an embedded manner, and the timer is connected to the power supply circuit in the refrigerator body. The refrigerator is capable of performing regular music reminding according to the requirements of people, people removes frost after the music reminding regularly, the refrigerating effect of the refrigerator can be improved, power can be saved, lots of bacteria can be eliminated, human health is guaranteed, and the frost removal is facilitated through the arrangement of a water outlet.
Owner:XIAN KAIBEI NAITE INTELLIGENT ENG
Air Conditioner Frosting Control Method
ActiveCN110836496BFrosting evenlyImprove defrostingMechanical apparatusSpace heating and ventilation safety systemsEngineeringMechanical engineering
Owner:CHONGQING HAIER AIR CONDITIONER CO LTD +2
Air conditioner, defrost control method and defrost control system
ActiveCN106705302BEfficient use ofAvoid wastingMechanical apparatusSpace heating and ventilation safety systemsFour-way valveControl system
The invention provides an air conditioner, a defrosting control method and a defrosting control system. The air conditioner comprises a compressor, an indoor heat exchanger, an outdoor heat exchanger, a four-way valve, a throttling device, a heat accumulating assembly and a stop valve, wherein the heat accumulating assembly is arranged between the four-way valve and the outdoor heat exchanger, comprises a heat accumulator, a water feeding device, an electric heating piece, a first temperature detecting device and a second temperature detecting device; and the stop valve is arranged between the four-way valve and the outdoor heat exchanger, and is connected in parallel with the heat accumulating assembly. According to the air conditioner disclosed by the invention, the heat accumulating assembly enables the air conditioner to perform defrosting under a heating mode, so that the favorable defrosting effect and the favorable heating effect are guaranteed, and the usage comfort of users is improved; when heat accumulating materials are short of water and the defrosting effect is poor, the water can be supplied by the water feeding device, and the four-way valve is switched, so that the air conditioner performs defrosting under a refrigeration mode, and the favorable defrosting effect is guaranteed; and after water supply is completed, the four-way valve is switched, so that the air conditioner performs defrosting under the heating mode, and the usage comfort of the users is improved.
Owner:WUHAN REFRIGERATION EQUIP OF MIDEA GROUP +1
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