WO2018076310A1 - Climatiseur sans givre - Google Patents

Climatiseur sans givre Download PDF

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Publication number
WO2018076310A1
WO2018076310A1 PCT/CN2016/103880 CN2016103880W WO2018076310A1 WO 2018076310 A1 WO2018076310 A1 WO 2018076310A1 CN 2016103880 W CN2016103880 W CN 2016103880W WO 2018076310 A1 WO2018076310 A1 WO 2018076310A1
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WO
WIPO (PCT)
Prior art keywords
air
compressor
frequency conversion
electric control
control module
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Application number
PCT/CN2016/103880
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English (en)
Chinese (zh)
Inventor
孙海潮
Original Assignee
孙海潮
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 孙海潮 filed Critical 孙海潮
Priority to PCT/CN2016/103880 priority Critical patent/WO2018076310A1/fr
Publication of WO2018076310A1 publication Critical patent/WO2018076310A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger

Definitions

  • the invention belongs to the technical field of air conditioning, and relates to only a refrigeration heat pump type frost-free air conditioner outdoor unit.
  • the existing refrigerating heat pump type air conditioner includes an indoor unit and an outdoor unit.
  • the indoor unit When cooling, the indoor unit is an evaporator, the indoor unit evaporates and absorbs heat, the outdoor unit is a condenser, and condenses and releases heat; when heating, the indoor unit is a condenser and condenses.
  • the outdoor unit Exothermic, the outdoor unit is an evaporator, and the heat is evaporated.
  • the condenser, the evaporator is collectively referred to as a heat exchanger.
  • the air conditioner outdoor unit usually divides the outdoor unit into two spaces by the middle partition plate, and a fan and a heat exchanger are arranged in a space on one side of the middle partition plate.
  • the invention is called a fan and a heat exchanger space, and the space is relatively large.
  • the inlet and outlet of the fan are open and open to the outside of the outdoor unit, and the compressor and the electronic control module are arranged in a space on the other side of the middle partition.
  • the invention is called a compressor and an electronic control module space, and the space is relatively small, and the compressor is relatively small.
  • the space around the electronic control module is enclosed by the middle partition and the outdoor casing, and is basically closed to the outside of the outdoor unit casing. If it is an inverter air conditioner, the electronic control module further includes a frequency conversion module.
  • the frequency conversion electronic control module is set in the frequency conversion electric control box.
  • the compressor and the variable frequency electronic control module when the air conditioner is running, the compressor and the variable frequency electronic control module must generate a large amount of heat, especially the heat generated by the frequency conversion module is larger, which is generated by the entire outdoor unit. If the temperature is the highest, the heat is the highest. If the heat is not dissipated in time, the inverter electronic control module will not work normally or even burn out. When the compressor temperature is too high, it will affect the performance and service life of the compressor. When the inverter module and compressor temperature are too high, The over-temperature protection device is triggered to force the air conditioner to stop running, which affects the use of the air conditioner. Therefore, the frequency conversion electronic control module and the compressor must be dissipated.
  • variable frequency electric control module adopts these two heat dissipation methods: 1. On the variable frequency electric control box with the variable frequency electronic control module, the air cooling radiator is disposed, and the radiator can be attached.
  • the middle partition is designed on the side of the fan and the heat exchanger, and the electric control box is placed on the middle partition. However, most of the electric control box is still located on the side of the compressor and the variable frequency electronic control module, and the radiator can also be attached to the middle partition. It is installed on the side of the compressor and the electronic control module.
  • the side of the radiator is placed on the side of the middle partition, it is the negative pressure difference formed by the operation of the fan, so that the outdoor air passes through the heat exchanger through the radiator or compressor and The air on the side of the electronic control module is cooled by the heat exchange of the radiator and then discharged by the fan to the outdoor unit.
  • the cooling circuit is used to cool the heat-dissipating electronic control module, and the compressor usually dissipates heat for natural heat dissipation and heat dissipation.
  • the heat radiated from the variable frequency electronic control module and the compressor is discharged to the outdoor unit, and the heat generated by the variable frequency electronic control module and the compressor is consumed by the electric energy, and this part of the energy is directly discharged. Outdoor machine, wasted energy.
  • the inverter electronic control module in the existing inverter air conditioner adopts air-cooling heat dissipation
  • the fan and heat exchanger parts are completely open to the outside of the outdoor unit, and the negative pressure region formed when the fan is running is large, and the air is blown into the entire heat exchanger.
  • the frequency conversion electronic control module is often poor in heat dissipation, it will easily cause the entire system to over-temperature protection and stop running when the high-temperature operation is performed for a long time.
  • the long-term operation of the frequency conversion electronic control module will shorten the service life under such working conditions, and even burn out, and the refrigerant Cooling frequency conversion electronic control module, the temperature difference between the refrigerant temperature and the variable frequency electronic control module is very large, and it is easy to form condensation on the surface of the frequency conversion electronic control module and the electronic control circuit board, thereby bringing the short circuit of the frequency conversion electronic control module circuit board.
  • Hidden dangers When the air conditioner heats up, condensation water will be generated on the surface of the evaporator tube. When the ambient air temperature is lower than 5-7 °C, the condensation water will condense into a thin frost. The lower the ambient temperature, the more serious the frosting will be, and even the thickness will be thick.
  • Thick frost, frost and frost will reduce and block the air passage between the fins, increase the air flow resistance, resulting in a sharp drop in evaporative heat transfer capacity, and even cause the air conditioner to stop working and can not heat, so the defrost device must be defrost .
  • the usual defrosting methods for air conditioners are four-way reversing valve defrost, hot gas bypass defrost, and electric heating components defrost. Four-way reversing valve defrosting needs to interrupt heating, hot gas bypass Defrost will reduce the heating to the room. When the outdoor temperature is low, it will lead to the compressor. It will reduce the performance of the compressor and even damage the compressor.
  • the defrosting effect of the electric heating components is good, and the first two interruptions will not occur. Heating or reducing the heating situation, but the electric components defrosting, the power consumption is large, the cost of defrosting is higher.
  • the defrosting is too late, the frost layer on the evaporator is too thick, the air passage between the fins is blocked, the air volume is reduced, the heating efficiency of the system is decreased, and the energy consumption is increased; Early, there is no frost or a small amount of frost on the evaporator, which will increase the frequency of defrost, and will also cause the system heating efficiency to decrease and increase energy consumption.
  • the object of the present invention is to provide a refrigerating heat pump type frost-free air conditioner outdoor unit. After the air conditioner is started, it is ensured that the air conditioner is not interrupted and the normal heating is not reduced, and the outdoor unit evaporator can be exempted without increasing the power consumption. Frosting becomes a frost-free air conditioner, and it is difficult to accurately control the problem of starting the defrosting time.
  • the outdoor unit evaporator can be supplied with air above the ambient temperature, thereby improving the evaporation efficiency of the evaporator, increasing the heat of the air conditioner, improving the energy efficiency of the air conditioner, and saving energy.
  • a frost-free air conditioner including an outdoor unit casing, an evaporator, a fan, a middle partition, a compressor and an inverter electronic control module space, a frequency conversion electric control box, a compressor
  • the utility model is characterized in that: an air inlet duct is arranged at the air outlet of the fan, and the air inlet duct passes through the middle partition to communicate with the compressor and the frequency conversion electric control module, and is arranged on the outdoor unit casing of the compressor and the frequency conversion electric control module space.
  • the collecting hood is arranged, and the collecting hood is connected with the heating air supply duct, and the fan outlet air enters the space of the compressor and the frequency conversion electric control module through the air inlet duct, flows through the compressor, and after the frequency conversion electric control box, enters the wind collecting hood
  • the heating air supply duct is delivered to the air inlet side of the evaporator.
  • a frost-free air conditioner including an outdoor unit casing, a condenser, a fan, a middle partition, a compressor and an inverter electronic control module space, and an inverter electric control box.
  • the compressor is characterized in that: an air inlet duct is arranged at the air outlet of the fan, and the air inlet duct passes through the middle partition to communicate with the compressor and the frequency conversion electronic control module, and is arranged between the compressor and the side panel of the outdoor unit casing
  • the cooling air outlet duct, the cooling air outlet air outlet passes through the outdoor unit casing and communicates with the external space of the outdoor unit, and the fan air enters the space of the compressor and the frequency conversion electric control module through the air inlet duct, flows through the compressor, and converts the frequency After the electric control box, enter the cooling air outlet duct to discharge the outdoor unit.
  • the invention provides an electric heating tube in the air collecting hood.
  • the chilling air duct and the air collecting hood of the invention are provided with a damper that can be opened and closed.
  • the cooling air duct damper When the air conditioner is heating, the cooling air duct damper is closed, the windshield damper is opened, the outdoor unit fan is started, and the air outside the sucked outdoor unit is exchanged by the evaporator to be cooled and then cooled to become cold air, and then discharged by the fan.
  • the air discharged by the fan has a strong wind pressure, some of the air passes through the air inlet duct set by the fan air outlet, and is collected into the space of the compressor and the frequency conversion electronic control module, flowing through the compressor, and the frequency conversion electric
  • the box When the box is controlled, the heat of the compressor casing is absorbed, and the heat on the frequency conversion electric control box becomes hot air.
  • the cooling air outlet damper is closed, and the air collecting hood becomes the space of the compressor and the variable frequency electronic control module.
  • the hot air is collected into the collecting hood and sent to the air inlet side of the evaporator through the heating air duct, and mixed with the air outside the fan and the evaporator space to form a mixed air, and the mixed air temperature is formed. It is higher than the air outside the space of the fan and heat exchanger, that is, the ambient air temperature.
  • the mixed air is sucked by the fan, flows through the evaporator tube and the heat exchange fins on the evaporator, and is discharged outside.
  • the air conditioner When the air conditioner is heating, condensation water will be generated on the surface of the evaporator tube. When the ambient air temperature is lower than 5-7 °C, the surface temperature of the evaporator tube sheet will be lower than 0 °C, and the condensation water will condense into a thin frost.
  • the air conditioner When the air conditioner is heated at an ambient air temperature of less than 5-7 ° C, the above-mentioned air mixture temperature mixed with the air outside the fan and the evaporator space is greater than 0 ° C, thereby eliminating frost formation on the outdoor unit evaporator. It is possible that the air conditioner has no frost and heat and becomes a frost-free air conditioner.
  • the evaporator is heated due to the temperature of the mixed air flowing above the ambient air temperature.
  • the evaporation energy also increases the heating of the room; when the ambient temperature of the colder climate makes the temperature of the mixed air lower than 0 °C, the temperature of the mixed air is always higher than the ambient temperature, and the surface of the evaporator plate of the outdoor unit Although it will freeze and freeze in an environment below 0 °C, the rate of condensation and icing will be greatly reduced, thereby reducing the opening frequency and defrost time of the auxiliary defroster, saving energy and saving energy.
  • the invention defrosting the surface of the evaporator tube piece by providing an electric heating tube in the collecting hood to increase the temperature of the air flowing through the collecting hood, and reducing the opening frequency and the defrosting time of the auxiliary defrosting device, Under the same working condition, the electric defrosting power consumption of the electric heating pipe of the invention is reduced, the defrosting time is short and the speed is fast, and the user's comfort during air conditioning heating is improved.
  • the air conditioner is heated at an ambient temperature of less than 5-7 ° C or higher than 5-7 ° C
  • the temperature of the mixed air flowing through the evaporator of the present invention is always higher than the temperature of the ambient air, so that the outdoor unit is evaporated. The efficiency is improved, the heating energy efficiency is improved, and the energy saving is saved.
  • the air outlet of the cooling air duct is opened, and the air damper of the air collecting hood is closed.
  • the air outside the outdoor unit is heated by the condenser and then turned into hot air, which is discharged by the fan to the outdoor unit.
  • the air temperature of the machine is increased to hot air as soon as possible, but the temperature of the hot air is only allowed to be at a temperature of 43 ° C under the maximum operating ambient temperature of the air conditioning condition, and the surface temperature of the compressor casing at this time will be Up to 100 °C, the temperature of the frequency conversion module in the frequency conversion electric control box will be close to the limit working temperature of the frequency conversion module of 75 °C.
  • the hot air temperature is still much lower than the temperature of the surface of the compressor casing and the frequency conversion electric control box, and is discharged by the fan.
  • a part of the hot air passes through the air inlet duct set by the fan air outlet, and is collected into the space of the compressor and the variable electrical control module.
  • the heat of the compressor casing and the frequency conversion electric control box are changed.
  • the cooling air duct becomes the only air outlet channel of the compressor and the variable frequency electric control module, and the hot air passes through.
  • the cold air duct flows out of the outdoor unit to achieve the purpose of cooling and cooling the compressor and the variable frequency electric control box.
  • the compressor and the variable frequency electric control box are cooled and cooled, so that the frequency conversion electronic control components on the compressor and the variable frequency electric control box are always Operating at a suitable temperature condition improves the performance and service life of compressors and variable frequency electronic components.
  • the air conditioner adopts a flammable refrigerant system such as R290, which is increasingly popular, when the refrigerant circuit in the space of the outdoor unit compressor and the variable frequency electronic control module leaks or is difficult to avoid, the micro leaks at various sealed joints are accumulated. After the concentration, the flammable refrigerant enters the frequency conversion electric control box, and there may be a crisis of ignition and ignition of the electronic components in the frequency conversion electric control box.
  • the air conditioner of the present invention discharges the fan regardless of heating or cooling operation. A part of the air will pass through the air inlet duct set by the fan air outlet, and will be collected into the space of the compressor and the frequency conversion electronic control module. After passing through the compressor and the frequency conversion electric control box, it will be discharged to the outdoor unit. If a refrigerant leak occurs, the leaked refrigerant will be discharged. It is discharged from the outdoor unit at any time, thus eliminating the possibility that the leakage of the outdoor unit of the flammable refrigerant system may cause an explosion.
  • the air inlet duct of the invention passes through the middle partition plate and communicates with the compressor and the frequency conversion electronic control module, and can also be designed to bypass the middle partition plate and communicate with the compressor and the frequency conversion electronic control module, and there is no substantial difference between the two.
  • the air hood is arranged on the outdoor unit casing of the compressor and the frequency conversion electronic control module space, and the wind hood can also be arranged in other parts of the space of the middle partition or the compressor and the frequency conversion electric control module, and the air can be passed through and collected.
  • the heat transfer air duct connected to the hood is transported to the air inlet side of the evaporator for the substantial purpose.
  • the above invention aims to reduce the temperature of the compressor and the variable frequency electric control box and eliminate the leakage of the outdoor unit of the flammable refrigerant system, which may cause an explosion hazard.
  • the object of the invention is to achieve the situation that the existing air conditioner does not need to increase energy consumption.
  • the air supply duct of the present invention has a rectangular tube with a rectangular shape at the middle and a semicircular shape at both ends, and the flat tube is disposed around the heat pipe of the evaporator.
  • the heat pipe of the evaporator is a set of parallel "C” type, flat tube Also set as a set of parallel "C” type, close to the heat sink arrangement on the evaporator heat pipe, the flat surface in the middle of the flat tube is parallel to the flow direction of the air entering the evaporator, and the flat tube and the heat pipe in the evaporator are Set at the same horizontal line, the short side of the rectangle in the middle of the oblate tube grows to the same diameter as the heat pipe of the evaporator, and the number of the oblate tubes is half of the number of heat pipes on the evaporator, and the heat pipes of the evaporator are arranged one at a time.
  • the wind pipe will not increase the inlet air resistance of the evaporator.
  • One end of the oblate pipe is connected to the collecting hood, and the other end is closed.
  • a flat or array of hot air ducts is uniformly arranged on the flat surface of the oblate pipe.
  • the tuyere has an unlimited number of tuy Guatemala.
  • the present invention proposes that the tuyere is circular, with a diameter of 3 mm, and a tuyere is opened every 20 mm.
  • the arrangement of the oblate tube will pass the mixed air led by the collecting hood through the oblate On the tube Shunting air uniformly throughout the outer surface of the evaporator inlet side tube sheet of the evaporator to ensure that the respective positions are obtained substantially uniform mixing of the air inlet.
  • a cooling air duct partition is arranged between the compressor and the side panel of the outdoor unit casing.
  • the upper and lower partitions of the partition are closed with the top cover and the bottom of the casing, and the side of the partition is connected with the casing of the outdoor unit, and the width extends over the frequency conversion electronic control.
  • the box has an air outlet on the outdoor unit casing between the cooling air duct partition and the side panel of the outdoor unit casing, so that a cooling air outlet partition is formed between the air duct partition and the side panel of the outdoor unit casing.
  • Cooling air duct During heating, the cooling air duct partitions direct the air flowing into the space of the compressor and the electronic control module to be directed into the collecting hood. When cooling, the cooling air duct partitions are collected into the compressor and the electronic control module. The air change of the space flows to the outdoor unit through the compressor to the frequency conversion electric control box, and turns back into the cooling air outlet duct.
  • the air collecting hood is disposed on the rear back panel of the outdoor unit casing far away from the air guiding duct, and the collecting hood air collecting opening is designed as large as possible, so that the flowing air is collected into the collecting hood without resistance, and the wind collecting body
  • the cover and the air supply duct can be made of aluminum alloy material with light weight, fast heat transfer and corrosion resistance.
  • the control of the opening and closing of the damper and the electric heating pipe on the cooling air outlet duct and the collecting hood is a well-known technique in the field of air conditioning design, and the present invention does not describe it.
  • the present invention has the following advantages and positive effects:
  • the present invention can make the air conditioner evaporator frost-free air-conditioner into a frost-free air conditioner at a lower ambient temperature; In the low case, the rate of freezing and freezing of the air conditioner evaporator is reduced, the opening frequency and the defrosting time of the auxiliary defrosting device are reduced, the energy efficiency of the air conditioning heating is improved, and the energy saving is saved.
  • the temperature of the mixed air flowing through the evaporator of the present invention is always higher than the temperature of the ambient air, so that the evaporation efficiency of the outdoor unit is improved, and the energy efficiency of the air conditioner is improved. Increased heating capacity.
  • the invention can heat and cool the frequency conversion electronic control components of the compressor and the electric control box without increasing the energy consumption, and improve the compressor and the frequency conversion electronic control component. Performance and service life.
  • the above-mentioned invention for the heat dissipation and cooling of the compressor and the variable frequency electric control box and the elimination of the leakage of the outdoor unit of the flammable refrigerant system may cause an explosion hazard.
  • the object of the invention is to realize the realization of the existing air conditioner without increasing the energy consumption. , with zero cost to achieve the purpose of the advantage.
  • 1 is a schematic view showing the structure of an outdoor unit of the present invention.
  • Figure 2 is a schematic view of the wind collecting hood and the air supply duct of the present invention.
  • Figure 1 in Figure 2 is a heating air duct
  • 2 is an electric heating tube
  • 3 is a windshield
  • 4 is an outdoor unit casing
  • 5 is a variable frequency electric control box
  • 6 is a compressor
  • 7 is Cooling air duct
  • 8 is the cooling air duct partition
  • 9 is the outdoor unit partition
  • 10 is the induced air duct
  • 11 is the fan
  • 12 evaporator 13 is the heating air duct outlet.
  • the air conditioner When the air conditioner is heating, the air conditioner is energized, the damper of the cooling air duct 7 is closed, the damper of the air collecting hood 3 is opened, the compressor 6 is started, and the refrigerant in the heating circuit enters the evaporator 12 in the outdoor unit 4, Under the action of the fan 11, the air is taken in.
  • the inhaled air passes through the evaporator 12, the heat is absorbed, the air is cooled, and the cooled air is discharged from the outdoor unit by the fan 11, and the cooling air discharged from the fan 11 has a strong air.
  • Wind pressure which is arranged at the air inlet duct 10 of the air outlet of the fan 11, can introduce part of the chilled air into the space of the compressor 6 and the frequency conversion electronic control module 5, and flows through the compressor 6 and the frequency conversion electric control box 5,
  • the compressor 6 and the variable frequency electric control box 5 exchange heat, and absorb the heat accumulated on the compressor 6 and the variable frequency electric control box 5 to become hot air which is heated, and the hot air which is heated is collected by the wind collecting cover 3 and then heated.
  • the air duct 1 is discharged to the air outlet 13 of the heating air duct, and the arrow on the air outlet 13 of the heating air duct represents the air outlet and the air outlet direction, and the heat of the air outlet 13 of the heating air duct is exhausted.
  • the air merges with the air taken in from the outside of the outdoor unit to become mixed air.
  • the temperature of the air will be higher than the temperature of the air taken in by the outside of the outdoor unit, that is, higher than the ambient temperature of the outdoor unit.
  • the mixed air is absorbed by the evaporator 12, and the mixed air is cooled and cooled.
  • the mixed air is discharged from the outdoor unit by the fan 11, and the air is circulated in this way.
  • the electric heating tube 2 is activated to increase the temperature of the air flowing through the collecting hood, thereby increasing the temperature of the mixed air to defrost the surface of the evaporator tube piece.
  • the air conditioner is energized, the cooling air outlet damper is opened, the collecting hood damper is closed, the compressor 6 is started, the evaporator 12 becomes a condenser, and the refrigerant in the refrigeration circuit enters the condenser 12 in the outdoor unit 4,
  • the air is taken in under the action of the fan 11, and the sucked air is absorbed by the condenser 12, and the air is heated to become hot air.
  • the temperature is increased to hot air, the temperature of the hot air is still lower than that of the compressor casing.
  • the hot air is discharged by the fan 11 to the outside of the outdoor unit, and is disposed at the air inlet duct 10 of the air outlet of the fan 11, and introduces part of the hot air into the space of the compressor 6 and the frequency conversion electronic control module 5, and flows.
  • the compressor 6 and the frequency conversion electric control box 5 pass through, heat exchange with the compressor 6 and the variable frequency electric control box 5 is performed, and the heat accumulated on the compressor 6 and the variable frequency electric control box 5 is exhausted through the cooling air duct 7 to be discharged outside. In this way, the purpose of cooling and cooling of the compressor 6 and the variable frequency electric control box 5 is achieved.
  • variable frequency electronic control module in the description of the embodiment is the variable frequency electric control box.

Abstract

L'invention concerne un climatiseur sans givre comprenant une enveloppe (4) d'unité extérieure, un évaporateur (12), un ventilateur (11), une plaque de séparation intermédiaire (9), un espace à compresseur et à module de commande électrique de conversion de fréquence, une boîte de commande électrique de conversion de fréquence (5) et un compresseur (6). Une voie d'air forcé (10) est disposée au niveau d'une sortie d'air du ventilateur (11). La voie d'air forcé (10) pénètre à travers la plaque de séparation intermédiaire (9) afin d'être en communication avec l'espace à compresseur et à module de commande électrique de conversion de fréquence. Une hotte de captage d'air (3) est disposée sur l'enveloppe (4) d'unité extérieure de l'espace à compresseur et à module de commande électrique de conversion de fréquence. La hotte de captage d'air (3) est reliée à un tuyau d'air d'alimentation en air de chauffage (1). L'air évacué par le ventilateur (11) entre dans l'espace à compresseur et à module de commande électrique de conversion de fréquence par l'intermédiaire de la voie d'air forcé (10), coule à travers le compresseur (6) et la boîte de commande électrique de conversion de fréquence (5), puis entre dans la hotte de captage d'air (3) et il est transporté vers un côté d'entrée d'air de l'évaporateur (12) à travers le tuyau d'air d'alimentation en air de chauffage (1), et coule vers l'extérieur. Le climatiseur présente les caractéristiques suivantes : un chauffage sans givre est mis en œuvre, une dissipation de la chaleur et une réduction de la température sont effectuées sur le compresseur et sur un module de commande électrique de conversion de fréquence, la capacité de chauffage par évaporation est importante, et l'efficacité énergétique est élevée.
PCT/CN2016/103880 2016-10-29 2016-10-29 Climatiseur sans givre WO2018076310A1 (fr)

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CN106594902A (zh) * 2015-10-14 2017-04-26 孙海潮 一种制冷热泵型无霜空调室外机
CN106594904A (zh) * 2015-10-14 2017-04-26 孙海潮 一种制冷热泵型无霜空调室外机

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030005720A1 (en) * 2001-07-07 2003-01-09 Lg Electronics Inc. Refrigerator incorporating condenser functioning as backcover
JP2004360957A (ja) * 2003-06-03 2004-12-24 Daikin Ind Ltd 空気調和機
CN101285605A (zh) * 2008-03-21 2008-10-15 闫成文 一种热泵式空调器的室外机
CN203744424U (zh) * 2014-03-28 2014-07-30 广东科龙空调器有限公司 变频空调器控制模块冷却装置及变频空调器
CN104197431A (zh) * 2014-08-29 2014-12-10 美的集团武汉制冷设备有限公司 空调的室外机
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CN106568134A (zh) * 2015-10-08 2017-04-19 孙海潮 一种制冷热泵型无霜空调室外机
CN106594903A (zh) * 2015-10-14 2017-04-26 孙海潮 一种制冷热泵型无霜空调室外机
CN106594902A (zh) * 2015-10-14 2017-04-26 孙海潮 一种制冷热泵型无霜空调室外机
CN106594904A (zh) * 2015-10-14 2017-04-26 孙海潮 一种制冷热泵型无霜空调室外机
CN105674432A (zh) * 2016-03-06 2016-06-15 孙海潮 一种空调室外机

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