Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
60results about How to "Reduce frosting time" patented technology
Efficacy Topic
Property
Owner
Technical Advancement
Application Domain
Technology Topic
Technology Field Word
Patent Country/Region
Patent Type
Patent Status
Application Year
Inventor
Control system and control method for air-conditioning heating and frosting
ActiveCN105222285AReduce defrosting actionGuaranteed to be uncomfortableMechanical apparatusSpace heating and ventilation safety systemsElectricityControl system
The invention provides a control system for air-conditioning heating and frosting. The control system comprises an air-conditioning system, wherein the air-conditioning system comprises an outdoor unit heat exchanger (3), an electronic expansion valve (8), a compressor (1) and an outdoor motor (4), and further comprises an outer ring temperature detecting element (6) and an outer tube temperature detecting element arranged on the outdoor unit heat exchanger (3) as well as a controller electrically connected with the elements, wherein the controller (7) outputs a control signal to one or more of the electronic expansion valve (8), the compressor (1) and the outdoor motor (4). According to the control system provided by the invention, frostless control can be carried out on a frosting process of an outdoor unit, so that indoor heating comfort is improved; a frosting period is prolonged, so that defrosting action in a using process of a user is reduced; the process is simple and the cost is reduced; and active defrosting is carried out to overcome the defects of passive defrosting. The invention further relates to a control method for carrying out frosting control by utilizing the system.
Owner:GREE ELECTRIC APPLIANCES INC
Control method for relieving frosting of outdoor condenser of air conditioner
ActiveCN101975440AImprove comfortExtended service lifeSpace heating and ventilation safety systemsSpace heating and ventilation control systemsFrostEngineering
The invention relates to an air conditioning control technology and discloses a control method for relieving frosting of an outdoor condenser of an air conditioner, which solves the problem that the comfort of the air conditioner is influenced by a frost treating mode of the outdoor condenser in the prior art. The technical scheme has the main points of: detecting the temperature T1 of a coil pipe of an indoor evaporator; judging whether the T1 is greater than or equal to N, wherein the N is greater than or equal to 31 DEG C and is less than or equal to 50 DEG C; if so, continuously detecting the temperature T2 of the coil pipe of the outdoor condenser; otherwise, defrosting the outdoor condenser; and when the T2 is less than or equal to 0 DEG C and retains a certain time, regulating the rotating speeds of motors of indoor and outdoor fans, and delaying the frosting treatment of the outdoor condenser, Through the treatment, after retaining indoor normal heating effect, the frosting time is delayed. The invention is suitable for delaying the frost control of outdoor condensers of all air conditioners.
Owner:四川长虹空调有限公司
Running control method and device, air conditioner and computer readable storage medium
ActiveCN108204657AIncrease effective runtimeReduces frequent frost defrost problemsMechanical apparatusSpace heating and ventilation safety systemsEngineeringRunning time
The invention provides a running control method and device, an air conditioner and a computer readable storage medium. The running control method comprises the steps that when it is detected that running is conducted in a heating mode, the heat exchanger assigned position temperature and the compressor running frequency in a heating period are recorded in real time; the time duration that the heatexchanger assigned position temperature, recorded in real time, in the heating period is reduced to the preset temperature value from the highest temperature value is determined; and according to thetime duration and the preset time duration relation, whether the compressor running frequency is controlled to be corrected or not is determined. By means of the technical scheme, the frosting time is effectively delayed, the effective running time duration in the heating mode is increased, and the problem of frequent air conditioner frosting and defrosting is solved; and accordingly, the indoorenvironment temperature fluctuation caused by defrosting is reduced, the service life of the air conditioner is prolonged, and the user experience is better improved.
Owner:GD MIDEA AIR-CONDITIONING EQUIP CO LTD
Air-cooling heat pump using excess heat of compressor for frost prevention
InactiveCN101699196AImprove performanceImprove winter coefficient of performanceCompressorHeat pumpsEngineeringExhaust pipe
The invention discloses an air-cooling heat pump using the excess heat of a compressor for frost prevention, comprising a refrigeration agent loop, a flat panel loop heat pipe and an outdoor unit fan; wherein the refrigeration agent loop is formed by the compressor, an outdoor heat exchanger, a throttling device and an indoor heat exchanger; an exhaust pipe of the compressor is connected with an inlet of the indoor heat exchanger, and an outlet of the indoor heat exchanger is connected with an inlet of the throttling device; an outlet of the throttling device is connected with an inlet of the outdoor heat exchanger, and an outlet of the outdoor heat exchanger is connected with an air suction pipe of the compressor; the flat panel loop heat pipe is formed by a metal evaporation cavity, a condensation part, a vapor phase metal pipeline, a liquid phase metal pipeline and a metal heat dissipation fin; when in heating operation in the winter, the air-cooling heat pump clings to the metal evaporation cavity on the top of the compressor to be heated under the condition of needing no extra power, a working medium inside the cavity is evaporated and vaporized, and the heat is brought to the condensation part and used for heating the air at the inlet of the outdoor heat exchanger, so that frost formation can be prevented.
Owner:SOUTH CHINA UNIV OF TECH
Evaporator
ActiveCN102353184AIncreased torsional stiffnessImprove fitEvaporators/condensersWindow shutterWater flow
The invention discloses a lever linkage shutter evaporator, comprising an evaporator composed of an evaporating pipe, a fin arranged on the evaporating pipe, and a feed pipe and an air return pipe connected with the evaporating pipe, wherein a water collecting groove, a drainage outlet and a support leg are arranged below the evaporator, a defrosting water pipe, a top cap plate are arranged abovethe evaporator, wind shields are arranged at two sides of the evaporator, shutters as well as linkage rods, pull rods and levers which are used for pushing and pulling the opening and closing actionsof the shutters are arranged on the wind shields, and a fixed baffle board is arranged above the shutters; the blades of the shutters are welded by a metal sheet strip with a Z-shaped section and a metal sheet strip with an L-shaped section, and are formed by extending thin-wall hollow square pipes at two wings, and teflon end plates are arranged between the blades and the wind shields. The evaporator provided by the invention has the main advantages that the blades of the shutters are strong in torsional rigidity, easy to laminate, and not frozen, an automatic water-washed frost program of the evaporator can orderly operate, the defrosting water flow is large, the defrosting time is shortened, and the operating efficiency and refrigerating capacity of the evaporator are improved.
Owner:SIFANG TECH GRP CO LTD
Control method for relieving frosting of outdoor condenser of air conditioner
ActiveCN101975440BImprove comfortExtended service lifeSpace heating and ventilation safety systemsSpace heating and ventilation control systemsFrostEngineering
The invention relates to an air conditioning control technology and discloses a control method for relieving frosting of an outdoor condenser of an air conditioner, which solves the problem that the comfort of the air conditioner is influenced by a frost treating mode of the outdoor condenser in the prior art. The technical scheme has the main points of: detecting the temperature T1 of a coil pipe of an indoor evaporator; judging whether the T1 is greater than or equal to N, wherein the N is greater than or equal to 31 DEG C and is less than or equal to 50 DEG C; if so, continuously detectingthe temperature T2 of the coil pipe of the outdoor condenser; otherwise, defrosting the outdoor condenser; and when the T2 is less than or equal to 0 DEG C and retains a certain time, regulating the rotating speeds of motors of indoor and outdoor fans, and delaying the frosting treatment of the outdoor condenser, Through the treatment, after retaining indoor normal heating effect, the frosting time is delayed. The invention is suitable for delaying the frost control of outdoor condensers of all air conditioners.
Owner:四川长虹空调有限公司
Air conditioner system with frosting delay function and control method thereof
ActiveCN110440478AReduce frosting timeIncrease temperatureMechanical apparatusSpace heating and ventilation safety systemsCircular loopRefrigerant
The invention discloses an air conditioner system with the frosting delay function and a control method thereof. The outer pipe wall of a heat exchange pipeline located on the lowest portion in an outdoor heat exchanger is subjected to temperature detection to judge the frosting condition of the outdoor heat exchanger, through increasing the opening degree of an enthalpy increasing expansion valve, the flow of liquid-state refrigerants on a refrigerant circular loop can be reduced, an outlet of the outdoor heat exchanger after the refrigerant flow is reduced easily achieves overheat state, thesurface temperature of the outdoor heat exchanger can be improved, the frosting time of the outdoor heat exchanger is effectively delayed, through control over the opening of a flow electromagnetic valve, the refrigerant flow in the heat exchange pipeline on the lowest portion in the outdoor heat exchanger can be increased, the overheat degree of the refrigerant in the heat exchange pipeline canbe increased, the frosting time of the outdoor heat exchanger can be effectively delayed, the heating time of the air conditioner system is effectively prolonged, the heating capacity and the heatingeffect are improved, and the use experience of a user is greatly improved.
Owner:GUANGDONG CHIGO HEATING & VENTILATION EQUIP CO LTD
Frost preventing and removing system and frost preventing and removing method of heat pipe type air conditioner
ActiveCN102901156BIncrease temperatureIncreasing the thicknessCorrosion preventionRefrigeration componentsProcess engineeringExhaust pipe
The invention relates to a frost preventing and removing system and a frost preventing and removing method of a heat pipe type air conditioner. A compressor waste heat recovery channel is separated from an outdoor machine through a partition plate; a compressor and an exhaust pipeline are positioned in the compressor waste heat recovery channel; the compressor waste heat recovery channel is internally provided with a waste heat recovery fan and a horizontal heat pipe; and the horizontal heat pipe is parallel to the heat transfer pipe of an outdoor heat exchanger and closely coupled with the heat transfer pipe of the outdoor heat exchanger through a heat exchange fin. According to the frost preventing and removing method which is disclosed by the invention, heat pipe technology compressor waste heat recovery based frost removal and hot gas bypass based frost removal are effectively combined. The frost preventing and removing system disclosed by the invention can realize a winter heating frost preventing mode, a winter heating periodical double-effect frost removing mode and a winter heating optimizing operation mode when operated for winter heating, has dual functions, namely frost prevention and removal, and the outstanding advantages of prolonging the frosting time, shortening the frost removing time, realizing the continuous heat supply of an indoor machine, and the like, and can be used for reducing the condensing temperature by realizing the double-effect cooling of the outdoor heat exchanger by adopting a heat pipe technology when operating for summer cooling, thereby reducing the power consumption of the compressor and enhancing the work property of a machine set.
Owner:SHANGHAI MARINE EQUIP RES INST
Direct-cooling micro-frost technology adopted refrigerator
ActiveCN104019601AImprove cooling efficiencyDelay frequency of defrostingLighting and heating apparatusDefrostingEngineeringWater vapor condensation
The invention relates to a direct-cooling micro-frost technology adopted refrigerator which comprises a freezing door, a freezing chamber inner container, a refrigerator body and a compressor. A water vapor condensation and separation board made of glass or metal materials is arranged between the freezing door and a freezing chamber of the refrigerator body. The water vapor condensation and separation board and the refrigerator body are fixed to a sunken table of the freezing chamber inner container through separation board shafts on lateral plastic pieces. The water vapor condensation and separation board is connected with the refrigerator body in a manually-opened-and-closed mode. A separation board sealing sleeve is installed on the periphery of the water vapor condensation and separation board and erected on the sunken table of the freezing chamber inner container. An opening of the freezing chamber inner container is right opposite to the water vapor condensation and separation board. The area of the water vapor condensation and separation board is larger than the area of the opening of the freezing chamber inner container. The refrigerator has the advantages that after the direct-cooling micro-frost technology is adopted for the direct-cooling refrigerator, the frosting time of an evaporator of the refrigerator can be shortened, the thickness of a condensed frost layer can be reduced, the refrigerating efficiency of the refrigerator can be improved, energy consumption can be reduced, and meanwhile the defrosting frequency of the refrigerator can be reduced.
Owner:HANGZHOU HUARI HOUSEHOLD APPLIANCE CO LTD
Self-cleaning control method for air conditioner
InactiveCN110762809AIncrease frosting speedReduce self-cleaning timeMechanical apparatusSpace heating and ventilation safety systemsElectronic expansion valveElectromagnetic valve
The invention belongs to the technical field of air conditioners, and provides a self-cleaning control method for an air conditioner. The method aims to solve the problem that the normal experience ofthe user is influenced due to long self-cleaning time caused by the fact that an existing self-cleaning control mode of the air conditioner is generally slow in frosting speed. The air conditioner comprises a refrigerant circulation system and a solution circulation system composed of an indoor solution film, an outdoor solution film, a liquid pump and a liquid storage box. The self-cleaning control method comprises the following steps that under a heating working condition, a compressor undergoes frequency reduction, a four-way valve is reversed, the opening degree of an electronic expansionvalve is reduced and the rotating speed of the liquid pump is improved, so that an indoor heat exchanger frosted; after the indoor heat exchanger is frosted, the electronic expansion valve is shut off first, and then an electromagnetic valve at the low pressure side of the compressor is shut off after preset time; and the indoor heat exchanger is heated, so that the indoor heat exchanger is subjected to defrosting cleaning. According to the self-cleaning control method for the air conditioner, the self-cleaning efficiency of the indoor heat exchanger can be improved, and the user experience is improved.
Owner:QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD
Evaporator
ActiveCN102353184BIncreased torsional stiffnessImprove fitEvaporators/condensersWindow shutterWater flow
The invention discloses a lever linkage shutter evaporator, comprising an evaporator composed of an evaporating pipe, a fin arranged on the evaporating pipe, and a feed pipe and an air return pipe connected with the evaporating pipe, wherein a water collecting groove, a drainage outlet and a support leg are arranged below the evaporator, a defrosting water pipe, a top cap plate are arranged abovethe evaporator, wind shields are arranged at two sides of the evaporator, shutters as well as linkage rods, pull rods and levers which are used for pushing and pulling the opening and closing actionsof the shutters are arranged on the wind shields, and a fixed baffle board is arranged above the shutters; the blades of the shutters are welded by a metal sheet strip with a Z-shaped section and a metal sheet strip with an L-shaped section, and are formed by extending thin-wall hollow square pipes at two wings, and teflon end plates are arranged between the blades and the wind shields. The evaporator provided by the invention has the main advantages that the blades of the shutters are strong in torsional rigidity, easy to laminate, and not frozen, an automatic water-washed frost program of the evaporator can orderly operate, the defrosting water flow is large, the defrosting time is shortened, and the operating efficiency and refrigerating capacity of the evaporator are improved.
Owner:SIFANG TECH GRP CO LTD
Self-cleaning control method for air conditioner
PendingCN110762722AReduce openingReduce speedMechanical apparatusSpace heating and ventilation safety systemsControl mannerRefrigeration
The invention belongs to the technical field of air conditioners, and aims to solve the problem that the self-cleaning control mode of an existing air conditioner is generally relatively slow in frosting speed, so that the whole self-cleaning time is long, and the normal experience of a user is influenced. The invention provides a self-cleaning control method for an air conditioner. The air conditioner comprises a refrigerant circulation system and a solution circulation system, wherein the self-cleaning control method comprises the following steps that the frequency of a compressor is reducedunder the refrigeration working condition, a four-way valve is subjected to reversing, the frequency of the compressor is raised, the opening degree of an electronic expansion valve is reduced, the rotating speed of an outdoor fan of the air conditioner is reduced, the rotating speed of a liquid pump is improved, the voltage of an indoor solution film and the voltage of an outdoor solution film are increased, and an outdoor heat exchanger is frosted; after the outdoor heat exchanger is frosted, the electronic expansion valve is turned off, an electromagnetic valve at the low pressure side ofthe compressor is turned off after the preset time, and the outdoor heat exchanger is heated, so that the outdoor heat exchanger is subjected to defrosting cleaning. According to the self-cleaning control method, the self-cleaning efficiency of the outdoor heat exchanger can be improved, and the experience of a user is improved.
Owner:QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD
Self-cleaning control method for air conditioner
PendingCN110762762AIncrease frosting speedReduce frosting timeMechanical apparatusSpace heating and ventilation safety systemsRefrigerationElectronic expansion valve
The invention belongs to the technical field of air conditioners, and aims to solve the problem that the self-cleaning control mode of an existing air conditioner is generally slow in frosting speed,so that the whole self-cleaning time is long, and the normal experience of a user is influenced. In order to solve the problem, the invention provides a self-cleaning control method for an air conditioner. The air conditioner comprises a refrigerant circulation system and a solution circulation system composed of an indoor solution film, an outdoor solution film, a liquid pump and a liquid storagetank; the self-cleaning control method comprises the steps that under the refrigeration working condition, frequency ascending is carried out on a compressor, an indoor fan of the air conditioner isclosed, and the rotating speed of the liquid pump is increased, so that an indoor heat exchanger is frosted; after the indoor heat exchanger is frosted, an electronic expansion valve is closed firstly, and then an electromagnetic valve at the low pressure side of the compressor is closed after a preset time; and the indoor heat exchanger is heated, so that the indoor heat exchanger is subjected todefrosting cleaning. According to the self-cleaning control method for the air conditioner, the self-cleaning efficiency of the indoor heat exchanger can be improved, and the user experience can be improved.
Owner:QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD
Self-cleaning control method for air conditioner
PendingCN110762699AFrosting fastReduce frosting timeMechanical apparatusSpace heating and ventilation safety systemsControl mannerEngineering
The invention discloses a self-cleaning control method for an air conditioner, and belongs to the technical field of air conditioners. The self-cleaning control method for the air conditioner aims tosolve the problem that a self-cleaning control mode of an existing air conditioner is generally slow in frosting speed, so that the whole self-cleaning time is caused to be long, and the normal experience of a user is influenced. The self-cleaning control method for the air conditioner is provided, the air conditioner comprises a refrigerant circulation system and a solution circulation system, the self-cleaning control method comprises the following steps that a compressor is enabled to reduce frequency under a heating working condition, a four-way valve is reversed, the opening degree of anelectronic expansion valve is reduced, an indoor unit of the air conditioner is closed and the voltage of an indoor solution film and the voltage of an outdoor solution film are raised, and thereby anindoor heat exchanger is frosted; after the indoor heat exchanger is frosted, the electronic expansion valve is closed firstly, and an electromagnetic valve at the low pressure side of the compressoris closed after a preset time; and the indoor heat exchanger is heated, so that the indoor heat exchanger is subjected to defrosting cleaning. The self-cleaning control method for the air conditionercan improve the self-cleaning efficiency of the indoor heat exchanger, and the user experience is improved.
Owner:QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD
Self-cleaning control method for air conditioner
InactiveCN110762706AFrosting fastReduce frosting timeMechanical apparatusSpace heating and ventilation safety systemsLiquid storage tankEngineering
The invention belongs to the technical field of air conditioners, aims to solve the problem that by means of a self-cleaning control mode of an existing air conditioner, the frosting speed is generally slow, so that the whole self-cleaning time is long, and the normal experience of a user is influenced, and provides a self-cleaning control method for an air conditioner. The air conditioner comprises a refrigerant circulation system and a solution circulation system which is composed of an indoor solution membrane, an outdoor solution membrane, a liquid pump and a liquid storage tank. The self-cleaning control method comprises the steps that frequency reducing is carried out on a compressor under the heating working condition, reversing is carried out on a four-way valve, frequency raisingis carried out on the compressor, and the voltage of the indoor solution membrane and the voltage of the outdoor solution membrane are raised, so that an indoor heat exchanger is frosted; after the indoor heat exchanger is frosted, an electronic expansion valve is closed, and then an electromagnetic valve at the low pressure side of the compressor is closed after reset time; and the indoor heat exchanger is heated, so that the indoor heat exchanger is subjected to defrosting cleaning. According to the method, the self-cleaning efficiency of the indoor heat exchanger can be improved, and the user experience is improved.
Owner:QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD
Self-cleaning control method for air conditioner
PendingCN110762761AIncrease frosting speedReduce frosting timeMechanical apparatusSpace heating and ventilation safety systemsPhysicsCold medium
The invention belongs to the technical field of air conditioners, and aims to solve the problem that the self-cleaning control mode of an existing air conditioner is generally slow in frosting speed,so that the whole self-cleaning time is long, and the normal experience of a user is influenced. In order to solve the problem, the invention provides a self-cleaning control method for an air conditioner. The air conditioner comprises a refrigerant circulation system and a solution circulation system composed of an indoor solution film, an outdoor solution film, a liquid pump and a liquid storagetank; the self-cleaning control method comprises the following steps that under the heating working condition, frequency reducing is carried out on a compressor, a four-way valve is reversed, frequency ascending is carried out on the compressor, an indoor fan of the air conditioner is closed, and the rotating speed of the liquid pump is improved, so that an indoor heat exchanger is frosted; afterthe indoor heat exchanger is frosted, an electronic expansion valve is closed firstly, and then an electromagnetic valve at the low pressure side of the compressor is closed after a preset time; andthe indoor heat exchanger is heated, so that the indoor heat exchanger is subjected to defrosting cleaning. According to the self-cleaning control method for the air conditioner, the self-cleaning efficiency of the indoor heat exchanger can be improved, and the user experience can be improved.
Owner:QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD
Self-cleaning control method for air conditioner
ActiveCN110762701BReduce speedReduce openingMechanical apparatusSpace heating and ventilation safety systemsFour-way valveSolenoid valve
The invention belongs to the technical field of air conditioners and aims to solve the problem that the self-cleaning control mode of the existing air conditioners generally has a slow frosting speed, which leads to a long time for the entire self-cleaning and affects the normal experience of users. For this reason, the present invention provides a kind of self-cleaning control method that is used for air conditioner, and air conditioner comprises refrigerant circulation system and the solution circulation system that is made of indoor solution film, outdoor solution film, liquid pump and storage tank, self-cleaning control The method includes: reducing the frequency of the compressor and reversing the direction of the four-way valve under cooling conditions; reducing the opening of the electronic expansion valve, reducing the speed of the outdoor fan of the air conditioner and increasing the speed of the liquid pump, so that the outdoor heat exchanger Frosting; after the outdoor heat exchanger is frosted, first close the electronic expansion valve, and then close the solenoid valve on the low-pressure side of the compressor after a preset time; heat the outdoor heat exchanger to defrost and clean the outdoor heat exchanger . The invention can improve the self-cleaning efficiency of the outdoor heat exchanger and improve user experience.
Owner:QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD +1
Self-cleaning control method for air conditioner
ActiveCN110762701AIncrease frosting speedReduce self-cleaning timeMechanical apparatusSpace heating and ventilation safety systemsFour-way valveSolenoid valve
The invention belongs to the technical field of air conditioners, aims to solve the problems that by means of a self-cleaning control mode of an existing air conditioner generally, the frosting speedis generally slow, so that the whole self-cleaning time is long, and the normal experience of a user is influenced, and provides a self-cleaning control method for an air conditioner. The air conditioner comprises a refrigerant circulation system and a solution circulation system which is composed of an indoor liquid film, an outdoor liquid film, a liquid pump and a liquid storage box. The self-cleaning control method comprises the steps that under a refrigeration working condition, frequency reducing is carried out on a compressor, and reversing is carried out on a four-way valve; the openingdegree of an electronic expansion valve is reduced, the rotating speed of an outdoor fan of the air conditioner is reduced, and the rotating speed of the liquid pump is improved, so that an outdoor heat exchanger is frosted; after the outdoor heat exchanger is frosted, the electronic expansion valve is closed, and then a solenoid valve at the low-pressure side of the compressor is closed after preset time; and the outdoor heat exchanger is heated, so that the outdoor heat exchanger is defrosted and cleaned. The method can improve the self-cleaning efficiency of the outdoor heat exchanger andimprove the user experience.
Owner:QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD +1
Control method for air conditioner, and air conditioner
ActiveCN111609518AReduce the number of times you enter defrost modeReduce the number of commutationsMechanical apparatusSpace heating and ventilation safety systemsEngineeringRefrigerant
The invention belongs to the technical field of air conditioners, and particularly provides a control method for an air conditioner, and the air conditioner. The air conditioner comprises an indoor unit and an outdoor unit, and a refrigerant heating component is arranged on a heat exchanger of the outdoor unit; the control method comprises the steps of acquiring the coil temperature of the heat exchanger and comparing the coil temperature with frosting warning temperature; operating the refrigerant heating component if the coil temperature of the heat exchanger is lower than the frosting warning temperature; comparing the coil temperature of the heat exchanger with the frosting risk temperature after the refrigerant heating component runs for a set time; judging whether the heat exchangermeets the defrosting conditions if the coil temperature of the heat exchanger is lower than the frosting risk temperature; and enabling the air conditioner to enter the defrosting mode selectively according to the judgment results. Through such arrangement, the number that the air conditioners enters the defrosting mode can be reduced, and the number that the air conditioner stops running in the heating mode; the influence on indoor temperature is reduced, and the reversing number of a four-way valve can be further reduced; and the service life of the four-way valve is prolonged.
Owner:QINGDAO HAIER AIR CONDITIONING ELECTRONICS CO LTD +1
A kind of refrigerator adopting direct cooling and micro-frost technology
ActiveCN104019601BImprove cooling efficiencyDelay frequency of defrostingLighting and heating apparatusDefrostingFrostEngineering
The invention relates to a direct-cooling micro-frost technology adopted refrigerator which comprises a freezing door, a freezing chamber inner container, a refrigerator body and a compressor. A water vapor condensation and separation board made of glass or metal materials is arranged between the freezing door and a freezing chamber of the refrigerator body. The water vapor condensation and separation board and the refrigerator body are fixed to a sunken table of the freezing chamber inner container through separation board shafts on lateral plastic pieces. The water vapor condensation and separation board is connected with the refrigerator body in a manually-opened-and-closed mode. A separation board sealing sleeve is installed on the periphery of the water vapor condensation and separation board and erected on the sunken table of the freezing chamber inner container. An opening of the freezing chamber inner container is right opposite to the water vapor condensation and separation board. The area of the water vapor condensation and separation board is larger than the area of the opening of the freezing chamber inner container. The refrigerator has the advantages that after the direct-cooling micro-frost technology is adopted for the direct-cooling refrigerator, the frosting time of an evaporator of the refrigerator can be shortened, the thickness of a condensed frost layer can be reduced, the refrigerating efficiency of the refrigerator can be improved, energy consumption can be reduced, and meanwhile the defrosting frequency of the refrigerator can be reduced.
Owner:HANGZHOU HUARI HOUSEHOLD APPLIANCE CO LTD
Air conditioner and self-cleaning control method and control device thereof
ActiveCN110848921AImprove self-cleaning effectReduce frosting timeMechanical apparatusLighting and heating apparatusSystem pressureEngineering
The invention provides an air conditioner and a self-cleaning control method and control device thereof. The method comprises the following steps: after the air conditioner enters a self-cleaning mode, determining the current self-cleaning stage of the air conditioner, wherein the self-cleaning stage of the air conditioner comprises an icing and frosting stage; when the air conditioner is in the icing and frosting stage, controlling the air conditioner to keep refrigerating operating, wherein a first fan is controlled to stop operating and a second fan is controlled to operate, and then the first fan is controlled to operate and the second fan is controlled to stop operating. Therefore, the problem of excessive system pressure caused by shutting down both the first fan and the second fan in the icing and frosting stage can be effectively avoided; and meanwhile, the frosting time of the lower part of an indoor heat exchanger can also be shortened.
Owner:GD MIDEA AIR-CONDITIONING EQUIP CO LTD
Self-cleaning control method for air conditioner
ActiveCN110762711AIncrease frosting speedReduce frosting timeMechanical apparatusSpace heating and ventilation safety systemsSolenoid valveControl manner
The invention belongs to the technical field of air conditioners, and provides a self-cleaning control method for an air conditioner to solve the problems that a self-cleaning control mode of an existing air conditioner is generally low in frosting speed, and consequently the whole self-cleaning time is long, and the normal experience of a user is influenced. The air conditioner comprises a refrigerant circulating system and a solution circulating system which is composed of an indoor solution film, an outdoor solution film, a liquid pump and a liquid storage tank. The self-cleaning control method comprises the steps: under the working condition of refrigeration, the frequency of a compressor is increased, the opening degree of an electronic expansion valve is decreased, the rotating speedof the liquid pump is increased, and thus an indoor heat exchanger is frosted; after the indoor heat exchanger is frosted, the electronic expansion valve is closed firstly, and then a solenoid valveon the low-voltage side of the compressor is closed after the preset time; and the indoor heat exchanger is heated, and thus the outdoor heat exchanger is subjected to frosting cleaning. The self-cleaning efficiency of the indoor heat exchanger can be improved, and the user experience is improved.
Owner:QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD +1
A kind of heat exchanger surface coating and heat exchanger surface treatment method
InactiveCN103697751BImprove drainage and defrost performanceImprove hydrophobicitySynthetic resin layered productsCoatingsCoated surfaceSand blasting
The invention discloses a surface coating for a heat exchanger. The coating comprises a priming paint layer and a Teflon layer from inside to outside, wherein the priming paint layer is 7-9 mum in thickness; the Teflon layer is 20-30mum in thickness. Moreover, the invention further discloses a surface treatment method for the heat exchanger. The method comprises the following steps: drying and degreasing the surface of the heat exchanger, removing oil impurities on the surface, and removing a surface paint layer or oxide impurities by performing sand blasting or rinsing; spraying a priming paint layer or a Teflon layer, and soaking a layer of grease outside a Teflon coating, wherein an aluminum base surface is tightly bonded with the Teflon layer through the priming paint layer, and Teflon has hydrophobic and oleophylic characteristics, so that a selected oil layer can be adsorbed onto the surface tightly. The coating surface has the characteristics of mist resistance and frosting delay of a hydrophobic surface as well as the characteristic of easiness in defrosting and draining of an oil layer.Owner:SHANGHAI JIAOTONG UNIV +1
Self-cleaning control method for air conditioner
PendingCN110762695AReduce openingFrosting fastMechanical apparatusSpace heating and ventilation safety systemsSolenoid valveLiquid storage tank
The invention belongs to the technical field of air conditioners, and provides a self-cleaning control method for an air conditioner. The problem that the normal experience of users is affected due tothe longer whole self-cleaning time because a self-cleaning control mode of an existing air conditioner generally has a slow frosting speed is solved. The air conditioner includes a refrigerant circulation system and a solution circulation system which is composed of an indoor solution film, an outdoor solution film, a liquid pump and a liquid storage tank. The self-cleaning control method includes the steps that under a refrigeration condition, the frequency of a compressor is raised, the opening of an electronic expansion valve is reduced, an indoor fan of the air conditioner is closed, voltages of the indoor solution film and the outdoor solution film are enabled to rise, so that an indoor heat exchanger frosts; after the indoor heat exchanger frosts, the electronic expansion valve isclosed, and then a solenoid valve on the low-voltage side of the compressor is closed after the preset time; and the indoor heat exchanger is heated to enable the indoor heat exchanger to defrost andclean. According to the self-cleaning control method, the self-cleaning efficiency of the indoor heat exchanger can be improved, and the user experience can be enhanced.
Owner:QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD
Self-cleaning control method for air conditioner
InactiveCN110762885AIncrease frosting speedReduce self-cleaning timeMechanical apparatusCorrosion preventionLiquid storage tankEngineering
The invention belongs to the technical field of air conditioners, aims to solve the problem that the normal user experience is affected by the whole longer self-cleaning time due to the fact that thefrosting speed is generally slow in a self-cleaning control mode of an existing air conditioner, and provides a self-cleaning control method for an air conditioner. The air conditioner comprises a refrigerant circulatory system and a solution circulatory system, wherein the solution circulatory system is composed of an indoor solution film, an outdoor solution film, a liquid pump and a liquid storage tank. The self-cleaning control method comprises the steps that under a heating working condition, the rotating speed of an outdoor draught fan of the air conditioner is reduced and the rotating speed of the liquid pump is increased, so that an outdoor heat exchanger frosts; after the outdoor heat exchanger frosts, firstly an electronic expansion valve is closed, and an electromagnetic valve on the low-voltage side of a compressor is closed after preset time; and the outdoor heat exchanger is heated, so that the outdoor heat exchanger defrosts and is cleaned. The self-cleaning control method for the air conditioner can improve the self-cleaning efficiency of the outdoor heat exchanger, and improve the user experience.
Owner:QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD
Self-cleaning control method for air conditioner
InactiveCN110762717AIncrease frosting speedReduce frosting timeMechanical apparatusSpace heating and ventilation safety systemsFour-way valveControl manner
The invention belongs to the technical field of air conditioners, aims to solve the problems that by means of a self-cleaning control mode of an existing air conditioner, the frosting speed is generally slow, so that the whole self-cleaning time is long, and the normal experience of a user is influenced, and provides a self-cleaning control method for an air conditioner. The air conditioner comprises a refrigerant circulation system and a solution circulation system composed of an indoor liquid film, an outdoor liquid film, a liquid pump and a liquid storage box. The self-cleaning control method comprises the steps that under a heating working condition, frequency reducing is carried out on a compressor, and reversing is carried out on a four-way valve; frequency increasing is carried outon the compressor, the opening degree of an electronic expansion valve is reduced, and the rotating speed of the liquid pump is improved, so that an indoor heat exchanger is defrosted; after the indoor heat exchanger is frosted, the electronic expansion valve is closed, and then an electromagnetic valve on the low-pressure side of the compressor is closed after preset time; and the indoor heat exchanger is heated so as to perform defrosting and cleaning on the indoor heat exchanger. The method can improve the self-cleaning efficiency of the indoor heat exchanger and improve the user experience.
Owner:QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD
Self-cleaning control method for air conditioner
InactiveCN110762710AReduce openingFrosting fastMechanical apparatusSpace heating and ventilation safety systemsControl mannerLiquid storage tank
The invention belongs to the technical field of air conditioners, and provides a self-cleaning control method for an air conditioner. The method aims to solve the problem that an existing self-cleaning control mode of the air conditioner is generally slow in frosting speed, so that whole self-cleaning time is long, and the normal experience of a user is influenced. The air conditioner comprises arefrigerant circulation system and a solution circulation system composed of an indoor solution film, an outdoor solution film, a liquid pump and a liquid storage tank, and the self-cleaning control method comprises the following steps that frequency of a compressor is lowered, and a four-way valve is reversed under the refrigeration working condition; the frequency of the compressor is raised, anopening degree of an electronic expansion valve is reduced, and a rotating speed of the liquid pump is improved, so that an outdoor heat exchanger is enabled to be frosted; after the outdoor heat exchanger is frosted, the electronic expansion valve is first closed, and an electromagnetic valve at the low pressure side of the compressor is closed after the preset time; and the outdoor heat exchanger is heated, so that the outdoor heat exchanger is subjected to defrosting cleaning. According to the method, the self-cleaning efficiency of the outdoor heat exchanger can be improved, and the userexperience is improved.
Owner:QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD
Self-cleaning control method for air conditioner
ActiveCN110762727AIncrease frosting speedReduce frosting timeMechanical apparatusSpace heating and ventilation safety systemsSolenoid valveLiquid storage tank
The invention belongs to the technical field of air conditioners, aims to solve the problem that the self-cleaning control method of an existing air conditioner generally has a low frosting speed, consequently, the whole self-cleaning time is long, and the normal experience of a user is affected, and, to this end, provides a self-cleaning control method for an air conditioner. The air conditionerincludes a refrigerant circulation system and a solution circulation system composed of an indoor solution film, an outdoor solution film, a liquid pump, and a liquid storage tank, the self-cleaning control method includes the steps that under a heating condition, the frequency of a compressor is increased, the opening degree of an electronic expansion valve is decreased, the rotation speed of theliquid pump is increased, and thus an outdoor heat exchanger frosts; after frosting of the outdoor heat exchanger, the electronic expansion valve is closed, and then a solenoid valve on the low-pressure side of the compressor is closed after a preset time; and the outdoor heat exchanger is heated to defrost and clean the outdoor heat exchanger. According to the self-cleaning control method for anair conditioner, the self-cleaning efficiency of the outdoor heat exchanger can be improved, and the user experience is improved.
Owner:QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD +1
Self-cleaning control method for air conditioner
InactiveCN110762709AReduce speedFrosting fastMechanical apparatusSpace heating and ventilation safety systemsProcess engineeringRefrigeration
The invention belongs to the technical field of air conditioners, and aims to solve the problem that the self-cleaning control mode of an existing air conditioner is generally slow in frosting speed,so that the whole self-cleaning time is long, and the normal experience of a user is influenced; In order to solve the problem, the invention provides a self-cleaning control method for an air conditioner. The air conditioner comprises a refrigerant circulation system and a solution circulation system; the self-cleaning control method comprises the following steps that under the refrigeration working condition, frequency reducing is carried out on a compressor, and a four-way valve is reversed; the rotating speed of an outdoor fan of the air conditioner is reduced, and the voltage of an indoorsolution film and the voltage of an outdoor solution film are risen, so that an outdoor heat exchanger is frosted; after the outdoor heat exchanger is frosted, an electronic expansion valve is closedfirstly, and then an electromagnetic valve at the low pressure side of a compressor is closed after a preset time; and the outdoor heat exchanger is heated, so that the outdoor heat exchanger is subjected to defrosting cleaning. According to the self-cleaning control method for the air conditioner, the self-cleaning efficiency of the outdoor heat exchanger can be improved, and the user experiencecan be improved.
Owner:QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD
Self-cleaning control method for air conditioner
ActiveCN110762763AFrosting fastReduce frosting timeMechanical apparatusSpace heating and ventilation safety systemsProcess engineeringElectronic expansion valve
The invention belongs to the technical field of air conditioners and aims to solve the problems that the whole self-cleaning time is longer and normal experience of a user is affected due to generallylower frosting speed of an existing self-cleaning control mode of the air conditioner. Therefore, the invention provides a self-cleaning control method for the air conditioner. The air conditioner comprises a refrigerant circulation system and a solution circulation system consisting of an indoor solution film, an outdoor solution film, a liquid pump and a liquid storage box; and the self-cleaning control method comprises the steps as follows: under the heating work condition, frequency of a compressor is increased, rotating speed of an outdoor fan of the air conditioner is reduced, and voltage of the indoor solution film and voltage of the outdoor solution film are increased, so that an outdoor heat exchanger is enabled to be frosted; after the outdoor heat exchanger is frosted, firstly,an electronic expansion valve is closed, and an electromagnetic valve on the low-pressure side of the compressor is closed after preset time; and the outdoor heat exchanger is heated, so that the outdoor heat exchanger is subjected to defrosting cleaning. According to the method, the self-cleaning efficiency of the outdoor heat exchanger can be increased, and the user experience is improved.
Owner:QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD +1
Who we serve
- R&D Engineer
- R&D Manager
- IP Professional
Why Eureka
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Social media
Try Eureka
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap