JP2007127354A - Integrated air-conditioner - Google Patents

Integrated air-conditioner Download PDF

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JP2007127354A
JP2007127354A JP2005321235A JP2005321235A JP2007127354A JP 2007127354 A JP2007127354 A JP 2007127354A JP 2005321235 A JP2005321235 A JP 2005321235A JP 2005321235 A JP2005321235 A JP 2005321235A JP 2007127354 A JP2007127354 A JP 2007127354A
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outdoor
heat exchanger
indoor
refrigerant
air
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JP4749120B2 (en
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Tsukasa Takayama
司 高山
Koichi Yamaguchi
山口　　広一
Masaaki Sato
全秋 佐藤
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Toshiba Carrier Corp
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Toshiba Carrier Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide an integrated air-conditioner assuring a safe operation capable of lessening the leakage amount even in case the refrigerant leaks eventually. <P>SOLUTION: The air-conditioner works on a system comprising two refrigerating cycles having independent refrigerant passages, in which the two refrigerating cycles are stored in a casing and use commonly the same indoor blower, outdoor blower, indoor conduit, and outdoor conduit. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は一体型空気調和装置に係り、特に２個の独立した冷凍サイクルを備えた一体型空調装置に関する。   The present invention relates to an integrated air conditioner, and more particularly to an integrated air conditioner having two independent refrigeration cycles.

従来の室内機と室外機を一体にした一体型空調機は、圧縮機、室内熱交換器、室外熱交換器、膨張手段、四方弁と、これらを連結し、冷媒を循環させるための配管とから構成されてなる冷凍サイクルを室外に設置された１個の筐体に収容してなっている。さらに、室内から吸込んだ空調される空気を室内熱交換器で熱交換し、再び室内へ吹出して循環させる室内通風路と、室外の空気を吸込んで室外熱交換器で熱交換し、再び外気へ排出する室外通風路と、室内空気及び室外空気を搬送する送風機と、構成要素を制御する制御器とを筐体に収容し、室内通風路は建物の壁体を貫通する構造になっている。   A conventional integrated air conditioner in which an indoor unit and an outdoor unit are integrated is a compressor, an indoor heat exchanger, an outdoor heat exchanger, an expansion means, a four-way valve, and a pipe for connecting these and circulating a refrigerant. The refrigeration cycle constituted by is housed in a single casing installed outdoors. In addition, the air to be conditioned that has been sucked in from the room is heat-exchanged by the indoor heat exchanger, blown again into the room and circulated, and the outdoor air is sucked from the outdoor air and exchanged by the outdoor heat exchanger, and then returned to the outside air. The outdoor ventilation path to be discharged, the blower that conveys indoor air and outdoor air, and the controller that controls the components are accommodated in the housing, and the indoor ventilation path has a structure that penetrates the wall of the building.

一般に空気調和装置は１個の冷凍サイクルを備えており、冷凍サイクルの配管に冷媒の漏洩が発生した場合、冷凍サイクル内の冷媒が全て配管外の室外若しくは室内へ放出される。空気調和装置が大型のものとなれば、漏洩する冷媒量の量も多大となるため、冷媒が例えばＨＦＣ系であれば、地球温暖化に与える影響も大きく、室内へ漏洩した場合は酸欠等ユーザーの健康状態に対して重大な障害を与えるおそれもある。また、自然冷媒であるＣＯ２あるいはＣＯ２を主成分とした混合冷媒（ＣＯ２とＨＣの混合冷媒等）もＨＦＣ系冷媒等と同様に室内へ漏洩した場合は酸欠等ユーザーの健康状態に対して重大な障害を与えるおそれもある。さらに、冷媒が例えばプロパンの様な可燃性のものであれば、漏洩した冷媒が引火、爆発するおそれがある。特に室内へ漏洩した場合、通常は室内へ冷媒が滞留するため、爆発につながる可能性は大きい。 In general, an air conditioner includes one refrigeration cycle, and when a refrigerant leaks in the piping of the refrigeration cycle, all of the refrigerant in the refrigeration cycle is discharged outside or indoors outside the piping. If the air conditioner becomes large, the amount of refrigerant that leaks will also increase. Therefore, if the refrigerant is, for example, an HFC system, it will have a significant impact on global warming. There is also a risk of serious damage to the user's health. Furthermore, the health of the oxygen deficiency such as user if leaked into similarly to CO 2 or a mixed refrigerant composed mainly of CO 2 (CO 2 and HC mixed refrigerant, etc.) HFC refrigerant such as a natural refrigerant chamber There is also a risk of serious obstacles. Furthermore, if the refrigerant is flammable, such as propane, the leaked refrigerant may ignite or explode. In particular, when leaking into the room, the refrigerant usually stays in the room, so there is a high possibility of explosion.

また、一体型空気調和装置として特許文献１の空気調和装置が提案されている。
特開２００３−２１４６４８号公報 Moreover, the air conditioning apparatus of patent document 1 is proposed as an integrated air conditioning apparatus.
JP 2003-214648 A

本発明は上述した事情を考慮してなされたもので、冷媒が漏洩した場合でも、その漏洩量を少なくすることができて安全な一体型空気調和装置を提供することを目的とする。   The present invention has been made in consideration of the above-described circumstances, and an object of the present invention is to provide a safe integrated air conditioner that can reduce the amount of leakage even when refrigerant leaks.

上述した目的を達成するため、本発明に係る一体型空気調和装置は、圧縮機、室外熱交換器、膨張装置、室内熱交換器及びこれらを配管により連結して冷媒を循環させる冷凍サイクルと、室内空気を搬送する室内送風機と、室外空気を搬送する室外送風機と、前記冷凍サイクル、室内送風機および室外送風機を制御する制御装置とを収容しかつ、室内から吸込んだ空気を前記室内熱交換器で熱交換し、室内へ吹出して循環させる室内送風路と、室外の空気を吸込んで前記室外熱交換器で熱交換し、外気へ排出する室外送風路とが設けられ、屋外に設置された１個の筐体を備えた一体型空気調和装置において、前記冷凍サイクルが、冷媒流路の独立した複数の冷凍サイクルから構成されるとともに同一の室内送風機、室外送風機および室内通風路、室外通風路を共用することを特徴とする。   In order to achieve the above-described object, an integrated air conditioner according to the present invention includes a compressor, an outdoor heat exchanger, an expansion device, an indoor heat exchanger, and a refrigeration cycle in which these are connected by piping to circulate refrigerant, An indoor blower that conveys indoor air, an outdoor blower that conveys outdoor air, and a control device that controls the refrigeration cycle, the indoor blower, and the outdoor blower, and air sucked from the room is received by the indoor heat exchanger An indoor air passage that heat-exchanges and blows out and circulates, and an outdoor air passage that sucks outdoor air, exchanges heat with the outdoor heat exchanger, and discharges it to the outside air. In the integrated air conditioner having the housing, the refrigeration cycle is composed of a plurality of independent refrigeration cycles with independent refrigerant flow paths, and the same indoor fan, outdoor fan, and indoor ventilation , Characterized by sharing the outdoor air passage.

本発明に係る一体型空気調和装置によれば、冷媒が漏洩した場合でも、その漏洩量を少なくすることができて安全な一体型空気調和装置を提供することができる。   According to the integrated air conditioner according to the present invention, even when the refrigerant leaks, the amount of leakage can be reduced, and a safe integrated air conditioner can be provided.

以下、本発明に係る一体型空気調和装置の一実施形態について添付図面を参照して説明する。   Hereinafter, an integrated air conditioner according to an embodiment of the present invention will be described with reference to the accompanying drawings.

図１は本発明の一実施形態に係る一体型空気調和装置の設置状態を示す概念図であり、図２は本一体型空気調和装置に用いられる冷凍サイクル図である。   FIG. 1 is a conceptual diagram showing an installation state of an integrated air conditioner according to an embodiment of the present invention, and FIG. 2 is a refrigeration cycle diagram used in the integrated air conditioner.

図１及び図２に示すように、本発明に係る一体型空気調和装置１は、建物の壁体Ｗに近接して室外に設置され、空気吹出孔が設けられた前面板を除去して示すような１個の筐体２を備え、この筐体２には第１の冷凍サイクル３Ａ、第２の冷凍サイクル３Ｂが内装されている。   As shown in FIG.1 and FIG.2, the integrated air conditioning apparatus 1 which concerns on this invention is installed in the vicinity of the wall W of a building, and removes and shows the front plate in which the air blowing hole was provided. The housing 2 includes the first refrigeration cycle 3A and the second refrigeration cycle 3B.

第１の冷凍サイクル３Ａ及び第２の冷凍サイクル３Ｂは、各々圧縮機４Ａ、４Ｂ、四方弁５Ａ、５Ｂ、室外熱交換器６Ａ、６Ｂからなる室外熱交換器６、膨張装置７Ａ、７Ｂ、室内熱交換器８Ａ、８Ｂからなる室内熱交換器８を配管９Ａ、９Ｂにより順次接続して構成される。   The first refrigeration cycle 3A and the second refrigeration cycle 3B are respectively composed of compressors 4A and 4B, four-way valves 5A and 5B, outdoor heat exchangers 6A and 6B, outdoor heat exchangers 6 and expansion devices 7A and 7B, indoors The indoor heat exchanger 8 including the heat exchangers 8A and 8B is configured by sequentially connecting the pipes 9A and 9B.

筐体２は、断面コ字状の仕切部材１０により、室外熱交換器収容部１１、圧縮機収容部１２、室内熱交換器収容部１３に相互に通気性なく区画されている。   The housing 2 is partitioned into an outdoor heat exchanger accommodating portion 11, a compressor accommodating portion 12, and an indoor heat exchanger accommodating portion 13 without air permeability by a partition member 10 having a U-shaped cross section.

室外熱交換器収容部１１には、いずれも図示しない空気吸込孔、空気吹出孔が設けられ、さらに、室外熱交換器６Ａ、６Ｂと、この室外熱交換器６Ａ、６Ｂに対向して共用の室外用送風機１４が配置されている。ここで室外通風路Ｐｏは室外熱交換器６Ａ、６Ｂを通過する室外熱交換器収容部１１のいずれも図示しない空気吸込口、空気吹出口間に設けられる通気路１１ａで形成される。   The outdoor heat exchanger accommodating portion 11 is provided with an air suction hole and an air blowing hole (not shown), and is shared by the outdoor heat exchangers 6A and 6B and the outdoor heat exchangers 6A and 6B. An outdoor blower 14 is disposed. Here, the outdoor ventilation path Po is formed by an air passage 11a provided between an air inlet and an air outlet (not shown) in any of the outdoor heat exchanger accommodating portions 11 passing through the outdoor heat exchangers 6A and 6B.

図３に示すように、室外熱交換器６Ａ、６Ｂは、フィン付熱交換器を使用し、多数のＵ字に曲げた伝熱管６Ａ１、６Ｂ１が共に一定間隔に配置された多数のフィン６ａを嵌合、貫通し、リタンベンド６Ａ２、６Ｂ２でそれぞれ接続して構成されている。すなわち、室外熱交換器６Ａ、６Ｂは冷媒流路が独立して設けられた１個の熱交換器６からなっている。 As shown in FIG. 3, the outdoor heat exchangers 6A and 6B use finned heat exchangers, and a large number of fins in which heat transfer tubes 6A 1 and 6B 1 bent into a number of U shapes are arranged at regular intervals. 6a is fitted and penetrated, and connected by retanbends 6A 2 and 6B 2 respectively. That is, the outdoor heat exchangers 6A and 6B are composed of a single heat exchanger 6 in which refrigerant flow paths are provided independently.

また、室内熱交換器８Ａ、８Ｂも図３に示すような室外熱交換器６Ａ、６Ｂと同様の構造を有し、冷媒流路が独立して設けられた１個の熱交換器８からなっている。   Also, the indoor heat exchangers 8A and 8B have the same structure as the outdoor heat exchangers 6A and 6B as shown in FIG. 3, and are composed of a single heat exchanger 8 in which the refrigerant flow path is provided independently. ing.

本実施形態では、伝熱管はそれぞれ独立した冷媒流路で構成されているが、フィンを同一のもので共用することで、フィン枚数の削減およびコンパクト化が可能で、熱交換器が安価になり、その取付けも容易になる。   In this embodiment, the heat transfer tubes are configured by independent refrigerant channels, but by sharing the fins with the same one, the number of fins can be reduced and the size can be reduced, and the heat exchanger can be made inexpensive. The mounting is also easy.

なお、本実施形態では、２個の室内熱交換器及び２個の室外熱交換器が各々同一のフィンを用いる例で説明したが、室内熱交換器あるいは室外熱交換器の一方にのみ同一のフィンを用いる熱交換器を用いても、また、両方の熱交換器を各々別個のフィンを用いた熱交換器を使用してもよい。   In the present embodiment, two indoor heat exchangers and two outdoor heat exchangers have been described as examples using the same fins, but the same is applied to only one of the indoor heat exchanger or the outdoor heat exchanger. A heat exchanger using fins may be used, or both heat exchangers may each use a heat exchanger using separate fins.

また、圧縮機収容部１２には、アキュムレータ４Ａａ、４Ｂａを備えた圧縮機４Ａ、４Ｂ、制御器１５、室内熱交換器８のリタンベンド接続部８ａが収容されている。   The compressor accommodating portion 12 accommodates compressors 4A and 4B including accumulators 4Aa and 4Ba, a controller 15, and a retanbend connecting portion 8a of the indoor heat exchanger 8.

室内熱交換器収容部１３には、各々室内Ｒと連通し、建物の壁面を貫通あるいは壁体の外面に沿う吸込ダクト１６及び吹出ダクト１７が設けられ、さらに、室内熱交換器８と、この室内熱交換器８に対向して共用の室内用送風機１８が配置され、収容されている。   Each of the indoor heat exchanger accommodating portions 13 is provided with a suction duct 16 and a blow-out duct 17 that communicate with the room R and pass through the wall surface of the building or along the outer surface of the wall body. A common indoor blower 18 is arranged and accommodated facing the indoor heat exchanger 8.

従って、室内空気は吸込ダクト１６から室内送風機１８によって吸込まれ、室内熱交換器８Ａ、８Ｂでそれぞれ加熱または冷却され、吹出ダクト１７より吹出され、室内を空調し、再び室内通風路Ｐｉを循環する構造となる。ここで室内通風路Ｐｉは室内熱交換器８を通過する室内熱交換器収容部１３の通気路１３ａ、吸込ダクト１６及び吹出ダクト１７で形成される。   Accordingly, the indoor air is sucked from the suction duct 16 by the indoor blower 18, heated or cooled by the indoor heat exchangers 8A and 8B, blown from the blowout duct 17, air-conditioned in the room, and circulated through the indoor ventilation path Pi again. It becomes a structure. Here, the indoor ventilation path Pi is formed by the ventilation path 13 a of the indoor heat exchanger accommodating portion 13 that passes through the indoor heat exchanger 8, the suction duct 16, and the blowout duct 17.

一体型空気調和装置１は、室内通風路Ｐｉ、室外通風路Ｐｏ、室内送風機１８、室外送風機１４、制御器１５及び吸込ダクト１６、吹出ダクト１７５が、１個の冷凍サイクルを備えた通常の一体型空気調和装置と同様であり、改良点として、冷凍サイクルを２個使用する構造であり、本空気調和装置１の空調能力は、冷媒流路が独立した２個の冷凍サイクル３Ａ、３Ｂのそれぞれの能力の合計値となるようにする。   The integrated air conditioner 1 includes an indoor ventilation path Pi, an outdoor ventilation path Po, an indoor blower 18, an outdoor blower 14, a controller 15, a suction duct 16, and a blowout duct 175 each having a single refrigeration cycle. It is the same as the body type air conditioner, and has a structure that uses two refrigeration cycles as an improvement. The air conditioning capacity of the air conditioner 1 is that each of the two refrigeration cycles 3A and 3B with independent refrigerant flow paths. To be the total value of the ability.

さらに、冷媒には、可燃性冷媒もしくは可燃性冷媒を主成分とする冷媒を使用することも可能である。例えばプロパン等のＨＣ系冷媒は地球温暖化係数（６ＷＰ）が従来のＨＦＣ系冷媒のおよそ０．２％未満と低く、環境に低負荷である。しかし、このような冷媒は可燃性であるため、冷媒が漏洩した際に爆発を起こす可能性がある。特に室内へ漏洩した場合は通常は室内へ冷媒が滞留するため、室内での爆発につながる可能性は大きい。   Further, as the refrigerant, a flammable refrigerant or a refrigerant mainly composed of a flammable refrigerant can be used. For example, HC refrigerants such as propane have a low global warming potential (6WP) of less than about 0.2% of conventional HFC refrigerants, and have a low environmental load. However, since such a refrigerant is flammable, an explosion may occur when the refrigerant leaks. In particular, when leaking into the room, the refrigerant usually stays in the room, so there is a high possibility that it will cause an explosion in the room.

本一体型空気調和装置では、２個の独立した冷凍サイクルを備え、１個の冷凍サイクルの空調能力は空調装置全体のおよそ半分程度で済むことから、空気調和能力が大きくとも、１個の冷凍サイクルの充填冷媒量を大幅に低減することが可能である。従って、一方の冷凍サイクルで冷媒が漏洩しても、漏洩する冷媒量は冷媒充填量が多い大能力の１個の冷凍サイクルを備え同等の能力を有する空気調和装置の漏洩量と比較して少量で済み、たとえ室内に可燃性冷媒が漏洩しても室内に滞留せずに希釈され・引火・爆発しない程度までの漏洩量にとどめられる程度に低減することが可能である。   In this integrated air conditioner, two independent refrigeration cycles are provided, and the air conditioning capacity of one refrigeration cycle is about half that of the entire air conditioner. The amount of refrigerant charged in the cycle can be greatly reduced. Therefore, even if the refrigerant leaks in one refrigeration cycle, the amount of the leaked refrigerant is small compared to the leak amount of an air conditioner having a large capacity refrigeration cycle with a large amount of refrigerant filling and having the same capacity. Even if the flammable refrigerant leaks into the room, it is possible to reduce the amount of leakage until it is diluted without staying in the room so that it does not ignite or ignite.

上述のように、本実施形態の一体型空気調和装置によれば、冷媒が漏洩した場合でも、その漏洩量を少なくすることができて安全な一体型空気調和装置が実現される。   As described above, according to the integrated air conditioner of this embodiment, even when the refrigerant leaks, the amount of leakage can be reduced, and a safe integrated air conditioner is realized.

なお、上記実施の態様においては、冷凍サイクルを冷媒流路の独立した２個の冷凍サイクルで構成した例で説明したが、本発明はこれに限らず、３個以上の冷凍サイクルで構成しても良い。   In the above embodiment, the example in which the refrigeration cycle is configured by two refrigeration cycles with independent refrigerant flow paths has been described. However, the present invention is not limited to this and is configured by three or more refrigeration cycles. Also good.

本発明の一実施形態に係る一体型空気調和装置の設置状態を示す概念図。The conceptual diagram which shows the installation state of the integrated air conditioning apparatus which concerns on one Embodiment of this invention. 本発明の一実施形態に係る一体型空気調和装置に用いられる冷凍サイクル図。The refrigerating cycle figure used for the integrated air conditioning apparatus which concerns on one Embodiment of this invention. 本発明に係る一体型空気調和機に用いられる室内熱交換器の斜視図。The perspective view of the indoor heat exchanger used for the integrated air conditioner which concerns on this invention.

符号の説明Explanation of symbols

１…一体型空気調和装置、２…筐体、３Ａ…第１の冷凍サイクル、３Ｂ…第２の冷凍サイクル、圧４Ａ、４Ｂ…縮機、４Ａａ、４Ｂａ…アキュムレータ、６…室外熱交換器、６ａ…フィン、６Ａ、６Ｂ…室外熱交換器、６Ａ１、６Ｂ１…伝熱管、６Ａ２、６Ａ２…リタンペンド、７Ａ、７Ｂ…膨張装置、８…室内熱交換器、８Ａ、８Ｂ…室内熱交換器、９Ａ、９Ｂ…配管、１０…仕切部材、１１…室外熱交換器収容部、１２…圧縮機収容部、１３…室内熱交換器収容部、１４…室外用送風機、１６…吸込ダクト、１７…吹出ダクト、１８…室内用送風機、Ｐｉ…室内通風路、Ｐｏ…室外通風路。   DESCRIPTION OF SYMBOLS 1 ... Integrated air conditioner, 2 ... Housing | casing, 3A ... 1st freezing cycle, 3B ... 2nd freezing cycle, Pressure 4A, 4B ... Compactor, 4Aa, 4Ba ... Accumulator, 6 ... Outdoor heat exchanger, 6a ... Fins, 6A, 6B ... Outdoor heat exchangers, 6A1, 6B1 ... Heat transfer tubes, 6A2, 6A2 ... Ritanpend, 7A, 7B ... Expansion devices, 8 ... Indoor heat exchangers, 8A, 8B ... Indoor heat exchangers, 9A , 9B ... Pipe, 10 ... Partition member, 11 ... Outdoor heat exchanger housing, 12 ... Compressor housing, 13 ... Indoor heat exchanger housing, 14 ... Outdoor fan, 16 ... Suction duct, 17 ... Blowout duct , 18 ... indoor blower, Pi ... indoor ventilation path, Po ... outdoor ventilation path.

Claims (3)

圧縮機、室外熱交換器、膨張装置、室内熱交換器及びこれらを配管により連結して冷媒を循環させる冷凍サイクルと、室内空気を搬送する室内送風機と、室外空気を搬送する室外送風機と、前記冷凍サイクル、室内送風機および室外送風機を制御する制御装置とを収容しかつ、室内から吸込んだ空気を前記室内熱交換器で熱交換し、室内へ吹出して循環させる室内送風路と、室外の空気を吸込んで前記室外熱交換器で熱交換し、外気へ排出する室外送風路とが設けられ、屋外に設置された１個の筐体を備えた一体型空気調和装置において、前記冷凍サイクルが、冷媒流路の独立した複数の冷凍サイクルから構成されるとともに同一の室内送風機、室外送風機および室内通風路、室外通風路を共用することを特徴とする空気調和装置。 A compressor, an outdoor heat exchanger, an expansion device, an indoor heat exchanger, and a refrigeration cycle in which these are connected by piping to circulate the refrigerant, an indoor fan that conveys indoor air, an outdoor fan that conveys outdoor air, and A refrigeration cycle, an indoor blower, and a control device that controls the outdoor blower, and heat exchange of the air sucked from the room by the indoor heat exchanger, blown out into the room and circulated, and outdoor air In the integrated air conditioner provided with an outdoor air passage that is sucked in, exchanged heat with the outdoor heat exchanger, and discharged to the outside air, and provided with a single casing installed outdoors, the refrigeration cycle includes a refrigerant An air conditioner comprising a plurality of refrigeration cycles with independent flow paths and sharing the same indoor fan, outdoor fan, indoor ventilation path, and outdoor ventilation path. 前記冷凍サイクルの室内熱交換器、室外熱交換器にフィン付熱交換器を使用し、前記室内熱交換器および前記室外熱交換器の少なくとも一方の熱交換器はフィンを共用することを特徴とする請求項１に記載の空気調和装置。 A heat exchanger with fins is used for the indoor heat exchanger and the outdoor heat exchanger of the refrigeration cycle, and at least one of the indoor heat exchanger and the outdoor heat exchanger shares fins. The air conditioning apparatus according to claim 1. 前記冷媒に可燃性冷媒、あるいは可燃性冷媒を主成分とする冷媒を使用することを特徴とする請求項１または２に記載の空気調和装置。 The air conditioner according to claim 1 or 2, wherein a flammable refrigerant or a refrigerant mainly composed of a flammable refrigerant is used as the refrigerant.
JP2005321235A 2005-11-04 2005-11-04 Integrated air conditioner Expired - Fee Related JP4749120B2 (en)

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CN107726447A (en) * 2017-09-04 2018-02-23 珠海格力电器股份有限公司 A kind of air conditioner
WO2022135085A1 (en) * 2020-12-21 2022-06-30 广东美的制冷设备有限公司 Integrated air conditioner

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JPS6229851A (en) * 1985-07-30 1987-02-07 Toshiba Corp Air conditioner
JPH07332776A (en) * 1994-06-07 1995-12-22 Hitachi Ltd Air conditioner using different type refrigerant
JPH0914698A (en) * 1995-06-23 1997-01-17 Sharp Corp Outdoor machine of air conditioner
JP2001085883A (en) * 1999-09-17 2001-03-30 Fuji Electric Co Ltd Device for cooling electronics
JP2003214648A (en) * 2002-01-25 2003-07-30 Toshiba Kyaria Kk Air conditioner
JP2005141473A (en) * 2003-11-06 2005-06-02 Matsushita Electric Ind Co Ltd Vending machine

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JPS6229851A (en) * 1985-07-30 1987-02-07 Toshiba Corp Air conditioner
JPH07332776A (en) * 1994-06-07 1995-12-22 Hitachi Ltd Air conditioner using different type refrigerant
JPH0914698A (en) * 1995-06-23 1997-01-17 Sharp Corp Outdoor machine of air conditioner
JP2001085883A (en) * 1999-09-17 2001-03-30 Fuji Electric Co Ltd Device for cooling electronics
JP2003214648A (en) * 2002-01-25 2003-07-30 Toshiba Kyaria Kk Air conditioner
JP2005141473A (en) * 2003-11-06 2005-06-02 Matsushita Electric Ind Co Ltd Vending machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107726447A (en) * 2017-09-04 2018-02-23 珠海格力电器股份有限公司 A kind of air conditioner
CN107726447B (en) * 2017-09-04 2023-09-12 珠海格力电器股份有限公司 Air conditioner
WO2022135085A1 (en) * 2020-12-21 2022-06-30 广东美的制冷设备有限公司 Integrated air conditioner

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