JPH05187735A - Heat pump - Google Patents
Heat pumpInfo
- Publication number
- JPH05187735A JPH05187735A JP18979392A JP18979392A JPH05187735A JP H05187735 A JPH05187735 A JP H05187735A JP 18979392 A JP18979392 A JP 18979392A JP 18979392 A JP18979392 A JP 18979392A JP H05187735 A JPH05187735 A JP H05187735A
- Authority
- JP
- Japan
- Prior art keywords
- heat
- compressor
- valve
- heat exchanger
- refrigerant
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
Landscapes
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、ヒートポンプに係り、
特に、運転時に余剰熱を蓄えるとともに蓄えた熱を暖房
立上げ時に吸放熱サイクルへ放出する蓄熱槽を備えたヒ
ートポンプの改良に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat pump,
In particular, it relates to an improvement of a heat pump provided with a heat storage tank that stores excess heat during operation and releases the stored heat to a heat absorption / radiation cycle when heating is started.
【０００２】[0002]
【従来の技術】周知のように、ヒートポンプは、圧縮
機，四方弁，室内の熱を吸放熱する室内熱交換器，膨張
弁，室外の熱を吸放熱する室外熱交換器で構成された閉
ループ内に冷媒を循環させる吸放熱サイクルで構成され
たもので、冷媒の通流経路を切換えるだけで冷房用にも
暖房用にも使用できることから家庭等で広く使用されて
いる。2. Description of the Related Art As is well known, a heat pump is a closed loop including a compressor, a four-way valve, an indoor heat exchanger that absorbs and radiates heat inside the room, an expansion valve, and an outdoor heat exchanger that absorbs and radiates heat outside the room. It is configured by an absorption and heat radiation cycle in which a refrigerant is circulated therein, and is widely used in homes and the like because it can be used for cooling and heating only by switching the flow path of the refrigerant.
【０００３】ところで、このようなヒートポンプを暖房
用として使用した場合、通常は、暖房運転立上げ時点か
ら温風が吹出すまでに相当の時間を必要とする。これ
は、暖房運転立上げ時点では圧縮機等が冷えていること
に起因する。居住者にとっては、暖房運転立上げ時点か
ら温風が吹出すことが望ましく、このような要望を満た
すために、通常は圧縮機のケースに電気ヒータを装着
し、暖房運転立上げと同時に電気ヒータを付勢すること
によって温風の吹出すまでの時間を短縮する方式が採用
されている。しかし、上記のように電気ヒータを装着す
る方式は、電気ヒータでの電力消費が伴うため、省エネ
ルギ化の点において好ましい方式とは言えない。By the way, when such a heat pump is used for heating, it usually takes a considerable amount of time from the start of heating operation until hot air is blown out. This is because the compressor and the like are cold at the time of starting the heating operation. For residents, it is desirable that hot air be blown from the start of heating operation, and in order to meet such demand, an electric heater is usually installed in the case of the compressor, and the electric heater is installed at the same time when the heating operation is started. The method of shortening the time until the hot air is blown out is adopted by energizing. However, the method of mounting the electric heater as described above is not a preferable method from the viewpoint of energy saving because the electric heater consumes power.
【０００４】そこで、このような不具合を解消するため
に、最近では暖房運転時の余剰熱を蓄熱槽に蓄えてお
き、翌日の運転開始時にその熱を放出させることによっ
て温風吹出しまでの時間の短縮化を図ろうとする提案が
なされている。Therefore, in order to solve such a problem, recently, surplus heat at the time of heating operation is stored in a heat storage tank, and the heat is discharged at the start of operation on the next day, whereby the time until hot air is blown out is increased. Proposals have been made to reduce the time.
【０００５】しかしながら、上記のように蓄熱槽を設け
る方式にあっても、暖房運転立上げ時に蓄熱槽に蓄えら
れている熱を時間遅れなく速やかに吸放熱サイクルに伝
えることが困難で、結局、暖房運転立上げ時点から実際
に温風が吹出すまでの時間がまだ長いと言う問題があっ
た。However, even in the system in which the heat storage tank is provided as described above, it is difficult to quickly transfer the heat stored in the heat storage tank to the heat absorption / radiation cycle without a time delay when the heating operation is started. There was a problem that the time from the start of heating operation to the actual blowing of warm air was still long.
【０００６】[0006]
【発明が解決しようとする課題】上述の如く、蓄熱槽を
設けた従来のヒートポンプにあっても、暖房運転立上げ
時点から実際に温風が吹出すまでの時間がまだ長いと言
う問題があった。そこで本発明は、上述した不具合を解
消でき、使い易さおよび快適さを一段と向上できるヒー
トポンプを提供することを目的としている。As described above, even the conventional heat pump provided with the heat storage tank has a problem that the time from the start of heating operation to the actual blowing of warm air is still long. It was Therefore, an object of the present invention is to provide a heat pump that can solve the above-mentioned problems and further improve ease of use and comfort.
【０００７】[0007]
【課題を解決するための手段】上記目的を達成するため
に、本発明に係るヒートポンプは、圧縮機，四方弁，室
内の熱を吸放熱する室内熱交換器，膨張弁，室外の熱を
吸放熱する室外熱交換器で構成された閉ループ内に冷媒
を循環させる吸放熱サイクルと、前記圧縮機に伝熱的に
連結して設けられ、上記圧縮機で発生した熱の一部を蓄
熱する蓄熱槽と、この蓄熱槽内に設けられた吸熱用熱交
換器と、暖房運転立上げ時に前記吸放熱サイクルから前
記吸熱用熱交換器への冷媒の流入を停止させ、前記圧縮
機の動作により上記吸熱用熱交換器内に残っている冷媒
を上記吸放熱サイクルに戻す手段とを備えている。To achieve the above object, a heat pump according to the present invention includes a compressor, a four-way valve, an indoor heat exchanger that absorbs and radiates indoor heat, an expansion valve, and outdoor heat. A heat absorption and heat dissipation cycle in which a refrigerant is circulated in a closed loop composed of an outdoor heat exchanger that radiates heat, and a heat storage that is provided so as to transfer heat to the compressor and stores part of the heat generated in the compressor. A tank, an endothermic heat exchanger provided in the heat storage tank, and stopping the inflow of refrigerant from the endothermic heat release cycle to the endothermic heat exchanger at the time of heating operation startup, and by the operation of the compressor, And a means for returning the refrigerant remaining in the heat absorbing heat exchanger to the heat absorbing and releasing cycle.
【０００８】[0008]
【作用】暖房運転立上げ時には、吸放熱サイクル側から
吸熱用熱交換器に向けての冷媒の流入はない。このた
め、吸熱用熱交換器内に残っている冷媒は蓄熱槽内の蓄
熱材から吸熱して高温高圧となる。すなわち、吸熱用熱
交換器内の冷媒は、あたかも閉じ込められた状態となる
ので、通流している場合に較べてはるかに高温に加熱さ
れる。この高温に加熱された冷媒が圧縮機の動作により
圧縮機に吸込まれる。したがって、圧縮機から高温の冷
媒が吐出されることになる。加えて、蓄熱槽内の蓄熱材
から圧縮機のケースを介して吐出冷媒に熱が伝えられ
る。このため、暖房運転立上げ時において、圧縮機から
高温の冷媒を吐出させることができ、結局、暖房運転立
上げ時点から実際に温風が吹出すまでの時間を十分短く
できる。When the heating operation is started up, there is no inflow of refrigerant from the heat absorption / radiation cycle side toward the heat absorption heat exchanger. Therefore, the refrigerant remaining in the heat absorbing heat exchanger absorbs heat from the heat storage material in the heat storage tank and becomes high temperature and high pressure. That is, since the refrigerant in the heat absorbing heat exchanger is in a trapped state, it is heated to a much higher temperature than when it is flowing. The refrigerant heated to this high temperature is sucked into the compressor by the operation of the compressor. Therefore, the high temperature refrigerant is discharged from the compressor. In addition, heat is transferred from the heat storage material in the heat storage tank to the discharged refrigerant through the case of the compressor. Therefore, when the heating operation is started up, the high-temperature refrigerant can be discharged from the compressor, and in the end, the time from when the heating operation is started up until the hot air is actually blown can be sufficiently shortened.
【０００９】[0009]
【実施例】以下、図面を参照しながら実施例を説明す
る。図１には本発明の一実施例に係るヒートポンブの概
略構成が示されている。Embodiments will be described below with reference to the drawings. FIG. 1 shows a schematic configuration of a heat pump according to an embodiment of the present invention.
【００１０】同図において、１は圧縮機を示し、２は室
内に配置され暖房運転時には凝縮器として、また冷房運
転時には蒸発器として使用される送風機付きの熱交換器
を示し、３は室外に配置され暖房運転時には蒸発器とし
て、また冷房運転時には凝縮器として使用される送風機
付きの熱交換器を示し、４は暖房および冷房運転を切換
えるための四方弁を示し、５は膨張弁を示している。In the figure, 1 is a compressor, 2 is a heat exchanger with a blower which is arranged indoors and is used as a condenser during heating operation and as an evaporator during cooling operation, and 3 is outside the room. A heat exchanger with a blower that is arranged and used as an evaporator during heating operation and as a condenser during cooling operation, 4 is a four-way valve for switching between heating and cooling operations, and 5 is an expansion valve. There is.
【００１１】圧縮機１は、図２に示すように、金属材等
で形成された蓄熱槽６内に収容されている。そして、蓄
熱槽６内には、たとえば圧縮機ケースの大部分が没する
レベルに潜熱蓄熱材７が収容されている。As shown in FIG. 2, the compressor 1 is housed in a heat storage tank 6 made of a metal material or the like. The latent heat storage material 7 is housed in the heat storage tank 6 at a level at which most of the compressor case is submerged.
【００１２】この潜熱蓄熱材７としては、相変化温度が
３０℃前後で、かつ安定した過冷却状態を保持するも
の、たとえば酢酸ナトリウム系の水和塩が用いられてい
る。すなわち、図３に示すように相変化温度Ｔｍ以上に
加熱された状態から冷却されると、Ｔｍでは凝固せずに
Ｔｍ以下の温度まで過冷却状態を安定に保持し、この状
態で刺激が与えられるとＴｍとなって凝固を開始するも
のが用いられている。As the latent heat storage material 7, a material having a phase change temperature of about 30 ° C. and maintaining a stable supercooled state, for example, a sodium acetate hydrate salt is used. That is, as shown in FIG. 3, when cooled from the state heated to the phase change temperature Tm or higher, Tm does not solidify, the supercooled state is stably maintained up to the temperature of Tm or lower, and stimulation is given in this state. The one that becomes Tm and starts coagulation when used is used.
【００１３】蓄熱槽６内で、潜熱蓄熱材７より上方位置
には、図２に示すように刺激付与機構８が配置されてい
る。この刺激付与機構８は、中央部が回動自在に支持さ
れ一端側に前記潜熱蓄熱材７中に先端部が侵入し得る針
Ｎを有するとともに他端側に鉄片Ｉを有したレバー９
と、このレバー９に対し前記針Ｐが潜熱蓄熱材７から遠
ざかる向きの力を常に付与するバネ１０と、鉄片Ｉに対
向する位置に配置され付勢されたとき上記鉄片Ｉを吸着
して前記針Ｎを潜熱蓄熱材７中に侵入させる電磁石１１
とで構成されている。Inside the heat storage tank 6, a stimulus applying mechanism 8 is arranged above the latent heat storage material 7 as shown in FIG. The stimulus applying mechanism 8 has a central portion rotatably supported, and a lever 9 having a needle N at one end side through which a tip portion can enter the latent heat storage material 7 and an iron piece I at the other end side.
And a spring 10 which constantly applies a force to the lever 9 in the direction of moving away from the latent heat storage material 7, and a lever 10 which is arranged at a position facing the iron piece I and adsorbs the iron piece I when being biased. Electromagnet 11 that causes the needle N to enter the latent heat storage material 7
It consists of and.
【００１４】また、蓄熱槽６内で潜熱蓄熱材７の収容空
間には吸熱用の熱交換器２０が配置されている。この熱
交換器２０の一端側は圧縮機１の吸い込み口とバルブ２
１の出口に接続されており、他端側はバルブ２２の出口
に接続されている。バルブ２１，２２の入口はそれぞれ
共通に四方弁４に接続されている。そして、圧縮機１，
四方弁４，刺激付与機構８，バルブ２１，２２は、運転
モードに応じて図示しない制御装置によって後述する関
係に制御される。次に、上記のように構成されたヒート
ポンプの動作を説明する。Further, a heat exchanger 20 for absorbing heat is arranged in the accommodation space of the latent heat storage material 7 in the heat storage tank 6. One end of the heat exchanger 20 has a suction port of the compressor 1 and a valve 2
1 is connected to the outlet and the other end is connected to the outlet of the valve 22. The inlets of the valves 21 and 22 are commonly connected to the four-way valve 4. And the compressor 1,
The four-way valve 4, the stimulus applying mechanism 8, and the valves 21 and 22 are controlled by a control device (not shown) in a relationship described later according to the operation mode. Next, the operation of the heat pump configured as described above will be described.
【００１５】まず、すでに暖房運転が行われているもの
とする。暖房運転時は、バルブ２１が開、バルブ２２が
閉に制御される。このとき冷媒は、圧縮機１〜四方弁４
〜熱交換器２〜膨張弁５〜熱交換器３〜四方弁４〜バル
ブ２１〜圧縮機１の経路で流れる。圧縮機１で圧縮され
た冷媒は高温に保たれているので、この高温の冷媒が通
流する熱交換器２から温風が吹き出ることになり、結
局、室内の暖房が行われることになる。このとき、蓄熱
槽６内の潜熱蓄熱材７は、圧縮機１のケースからの熱伝
導で相変化温度Ｔｍ以上に加熱され、液体の状態に保た
れている。First, it is assumed that the heating operation has already been performed. During the heating operation, the valve 21 is controlled to be opened and the valve 22 is controlled to be closed. At this time, the refrigerant is the compressor 1 to the four-way valve 4
-The heat exchanger 2-The expansion valve 5-The heat exchanger 3-The four-way valve 4-The valve 21-The path | route of the compressor 1 flows. Since the refrigerant compressed by the compressor 1 is kept at a high temperature, hot air is blown out from the heat exchanger 2 through which this high-temperature refrigerant flows, and eventually the room is heated. At this time, the latent heat storage material 7 in the heat storage tank 6 is heated to the phase change temperature Tm or higher by heat conduction from the case of the compressor 1 and is kept in a liquid state.
【００１６】上記のような暖房運転は、暖房を必要とし
なくなった時点でいつでも停止できるが、今、就眠に伴
って図４に示す時点ｔｏで停止させたものとする。この
ように停止すると、外気によって潜熱蓄熱材７が冷却さ
れ、その温度が徐々に低下する。この場合、潜熱蓄熱材
７として前述した特性のものが用いられているので、こ
の潜熱蓄熱材７は相変化温度Ｔｍ以下に冷却されても液
体状態を保持する。すなわち、過冷却状態を安定に保持
する。The heating operation as described above can be stopped at any time when heating is no longer required, but it is assumed that the heating operation is stopped at the time to shown in FIG. When stopped in this way, the latent heat storage material 7 is cooled by the outside air, and the temperature thereof gradually decreases. In this case, since the latent heat storage material 7 having the characteristics described above is used, the latent heat storage material 7 retains the liquid state even when cooled to the phase change temperature Tm or lower. That is, the supercooled state is stably maintained.
【００１７】しかして、翌朝、暖房運転を開始するため
に、図４に示す時点ｔ1 で制御装置に指令を与えると、
制御装置はバルブ２１を開に、バルブ２２を閉に制御
し、さらに圧縮機１を動作開始させると同時に電磁石１
１を短時間だけ付勢する。電磁石１１が付勢されると、
レバー９が回動して針Ｎが潜熱蓄熱材７中に侵入して潜
熱蓄熱材７に刺激を与える。このように刺激が与えられ
ると、潜熱蓄熱材７は、瞬時に相変化温度Ｔｍまで温度
上昇して凝固を開始し、今まで蓄えていた潜熱を放出す
る。However, if a command is given to the control device at the time t1 shown in FIG. 4 to start the heating operation the next morning,
The control device controls the valve 21 to open and the valve 22 to close, and further starts the operation of the compressor 1 and at the same time the electromagnet 1
Energize 1 for a short time. When the electromagnet 11 is energized,
The lever 9 rotates and the needle N enters the latent heat storage material 7 to give a stimulus to the latent heat storage material 7. When the stimulus is applied in this manner, the latent heat storage material 7 instantly rises in temperature to the phase change temperature Tm to start solidification, and releases the latent heat stored up to now.
【００１８】このとき、バルブ２２は閉じられているの
で、このバルブ２２を介して熱交換器２０に冷媒は流入
しない。このため、熱交換器２０内に残っている冷媒は
蓄熱槽６内の蓄熱材７から吸熱して高温高圧となる。す
なわち、熱交換器２０内の冷媒は、あたかも閉じ込めら
れた状態となっているので、通流している場合に較べて
はるかに高温に加熱される。この高温に加熱された冷媒
が圧縮機１の動作によりバルブ２１を通過した冷媒と一
緒に圧縮機１に吸込まれる。したがって、圧縮機１から
高温の冷媒が吐出される。加えて、蓄熱槽６内の蓄熱材
７から圧縮機１のケースを介して吐出冷媒に熱が伝えら
れる。このため、暖房運転立上げ時において、圧縮機１
から高温の冷媒を吐出させることができ、暖房運転立上
げ時点から極めて短時間に熱交換器２から温風を吹出さ
せることができる。At this time, since the valve 22 is closed, the refrigerant does not flow into the heat exchanger 20 via the valve 22. Therefore, the refrigerant remaining in the heat exchanger 20 absorbs heat from the heat storage material 7 in the heat storage tank 6 and becomes high temperature and high pressure. That is, since the refrigerant in the heat exchanger 20 is in a confined state, it is heated to a much higher temperature than in the case where it is flowing. The refrigerant heated to the high temperature is sucked into the compressor 1 together with the refrigerant having passed through the valve 21 by the operation of the compressor 1. Therefore, the high temperature refrigerant is discharged from the compressor 1. In addition, heat is transferred from the heat storage material 7 in the heat storage tank 6 to the discharged refrigerant via the case of the compressor 1. Therefore, when the heating operation is started up, the compressor 1
Therefore, a high-temperature refrigerant can be discharged from the heat exchanger 2, and hot air can be blown from the heat exchanger 2 in an extremely short time from the start of heating operation.
【００１９】また、暖房運転の途中で除霜を行うときに
は、バルブ２１が閉に、バルブ２２が開に制御され、同
時に刺激付与機構８が短時間だけ付勢され、さらに四方
弁４が切換えられて逆サイクルで運転される。When defrosting is performed during the heating operation, the valve 21 is controlled to be closed and the valve 22 is controlled to be open. At the same time, the stimulation applying mechanism 8 is energized for a short time, and the four-way valve 4 is switched. It is operated in reverse cycle.
【００２０】このように、暖房運転立上げ時には、熱交
換器２０内に残っていて高温に加熱された冷媒を圧縮機
１に吸込ませることができ、さらに蓄熱槽６内の蓄熱材
７から圧縮機１のケースを介して吐出冷媒に熱を伝える
ことができるので、暖房運転立上げ時点から短時間で熱
交換器２から温風を吹出させることができる。また、圧
縮機１を囲むように蓄熱槽６を設けているので、定常運
転時の熱リークを抑制することもでき、使い易さ、快適
性、経済性を向上させることができる。As described above, when the heating operation is started up, the refrigerant remaining in the heat exchanger 20 and heated to a high temperature can be sucked into the compressor 1, and further compressed from the heat storage material 7 in the heat storage tank 6. Since heat can be transferred to the discharged refrigerant via the case of the machine 1, warm air can be blown from the heat exchanger 2 in a short time from the start of heating operation. Further, since the heat storage tank 6 is provided so as to surround the compressor 1, it is possible to suppress heat leak during steady operation, and to improve ease of use, comfort, and economy.
【００２１】[0021]
【発明の効果】効率よく蓄熱できるとともに、暖房運転
立上げ時点から極めて短時間に温風を吹き出させること
ができる。As described above, the heat can be efficiently stored, and the warm air can be blown out in an extremely short time from the start of the heating operation.
【図１】本発明の一実施例に係るヒートポンプの系統図FIG. 1 is a system diagram of a heat pump according to an embodiment of the present invention.
【図２】同ヒートポンプに組込まれた蓄熱槽の部分を取
出して示す断面図FIG. 2 is a sectional view showing a portion of a heat storage tank incorporated in the heat pump, which is taken out and shown.
【図３】同蓄熱槽に収容されている潜熱蓄熱材の特性を
説明するための図、FIG. 3 is a diagram for explaining characteristics of a latent heat storage material housed in the heat storage tank,
【図４】同ヒートポンプの動作を説明するための図FIG. 4 is a diagram for explaining the operation of the heat pump.
１…圧縮機 ２，３…熱交換
器 ４…四方弁 ５…膨張弁 ６…蓄熱槽 ７…潜熱蓄熱材 ８…刺激付与機構 ２０…吸熱用の
熱交換器 ２１，２２…バルブDESCRIPTION OF SYMBOLS 1 ... Compressor 2, 3 ... Heat exchanger 4 ... Four-way valve 5 ... Expansion valve 6 ... Heat storage tank 7 ... Latent heat storage material 8 ... Stimulation mechanism 20 ... Endothermic heat exchanger 21, 22 ... Valve
Claims (1)
内熱交換器，膨張弁，室外の熱を吸放熱する室外熱交換
器で構成された閉ループ内に冷媒を循環させる吸放熱サ
イクルと、前記圧縮機に伝熱的に連結して設けられ、上
記圧縮機で発生した熱の一部を蓄熱する蓄熱槽と、この
蓄熱槽内に設けられた吸熱用熱交換器と、暖房運転立上
げ時に前記吸放熱サイクルから前記吸熱用熱交換器への
冷媒の流入を停止させ、前記圧縮機の動作により上記吸
熱用熱交換器内に残っている冷媒を上記吸放熱サイクル
に戻す手段とを具備してなることを特徴とするヒートポ
ンプ。1. A heat-absorbing and heat-dissipating device that circulates a refrigerant in a closed loop composed of a compressor, a four-way valve, an indoor heat exchanger that absorbs and dissipates heat inside the room, an expansion valve, and an outdoor heat exchanger that absorbs and dissipates heat outside the room. A cycle, a heat storage tank that is provided in a heat transfer manner with the compressor and stores a part of the heat generated in the compressor, a heat absorption heat exchanger provided in the heat storage tank, and heating. A means for stopping the flow of the refrigerant from the heat absorption / release cycle to the heat absorption heat exchanger at the start-up of operation, and returning the refrigerant remaining in the heat absorption heat exchanger to the heat absorption / release cycle by the operation of the compressor. A heat pump comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18979392A JPH0692851B2 (en) | 1992-07-17 | 1992-07-17 | heat pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18979392A JPH0692851B2 (en) | 1992-07-17 | 1992-07-17 | heat pump |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60159337A Division JPH0730968B2 (en) | 1985-07-19 | 1985-07-19 | Heat pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05187735A true JPH05187735A (en) | 1993-07-27 |
| JPH0692851B2 JPH0692851B2 (en) | 1994-11-16 |
Family
ID=16247306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18979392A Expired - Lifetime JPH0692851B2 (en) | 1992-07-17 | 1992-07-17 | heat pump |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0692851B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014102023A (en) * | 2012-11-19 | 2014-06-05 | Toshiba Corp | Air conditioner and air conditioning system |
| JP2014211250A (en) * | 2013-04-17 | 2014-11-13 | 株式会社東芝 | Refrigeration cycle device |
| JP2014211283A (en) * | 2013-04-19 | 2014-11-13 | 株式会社東芝 | Refrigeration cycle device |
| JP2016142417A (en) * | 2015-01-30 | 2016-08-08 | ジョンソンコントロールズ ヒタチ エア コンディショニング テクノロジー（ホンコン）リミテッド | Air conditioner |
-
1992
- 1992-07-17 JP JP18979392A patent/JPH0692851B2/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014102023A (en) * | 2012-11-19 | 2014-06-05 | Toshiba Corp | Air conditioner and air conditioning system |
| JP2014211250A (en) * | 2013-04-17 | 2014-11-13 | 株式会社東芝 | Refrigeration cycle device |
| JP2014211283A (en) * | 2013-04-19 | 2014-11-13 | 株式会社東芝 | Refrigeration cycle device |
| JP2016142417A (en) * | 2015-01-30 | 2016-08-08 | ジョンソンコントロールズ ヒタチ エア コンディショニング テクノロジー（ホンコン）リミテッド | Air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0692851B2 (en) | 1994-11-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4727726A (en) | Refrigeration cycle apparatus | |
| JPH05223410A (en) | Heat pump | |
| JPS6155018B2 (en) | ||
| JPH116665A (en) | Heat-storing-type air-conditioner | |
| JPH05187735A (en) | Heat pump | |
| JP2530094B2 (en) | Refrigeration cycle | |
| JP3809875B2 (en) | Air conditioner | |
| JPH0730968B2 (en) | Heat pump | |
| JP2504416B2 (en) | Refrigeration cycle | |
| JPH0428983B2 (en) | ||
| JPH033902Y2 (en) | ||
| JPS6030420B2 (en) | Heat pump floor heating system | |
| JPS63233264A (en) | Heat pump type air conditioner | |
| JPS6251370B2 (en) | ||
| JPH0510191Y2 (en) | ||
| JPS5810896Y2 (en) | heating device | |
| JPH0827092B2 (en) | Refrigeration cycle | |
| JPH0429345Y2 (en) | ||
| JPH086195Y2 (en) | Water heater | |
| JPH0953841A (en) | Heat pump type cooling-heating equipment | |
| JPH0221734Y2 (en) | ||
| JPH081340B2 (en) | Refrigeration cycle | |
| JPS63169450A (en) | Heat pump type air conditioner | |
| JPS60181553A (en) | Heat-pump hot-water supply air conditioner | |
| JPS63233265A (en) | Heat pump type air conditioner |