JPS6152563A - Heat pump type air conditioner - Google Patents
Heat pump type air conditionerInfo
- Publication number
- JPS6152563A JPS6152563A JP17321184A JP17321184A JPS6152563A JP S6152563 A JPS6152563 A JP S6152563A JP 17321184 A JP17321184 A JP 17321184A JP 17321184 A JP17321184 A JP 17321184A JP S6152563 A JPS6152563 A JP S6152563A
- Authority
- JP
- Japan
- Prior art keywords
- valve
- heat exchanger
- bypass circuit
- pressure reducing
- compressor
- 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
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明はヒートポンプ式空調機に係り、特に暖房運転に
おいて室外熱交換器に付着した霜の除霜に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a heat pump type air conditioner, and particularly to defrosting of frost adhering to an outdoor heat exchanger during heating operation.
ヒートポンプ式仝調機においては、暖房時に室外空気が
低温高湿度になると室外熱交換器に絹が付くため、これ
を適宜取り除く必要がある。一般に霜を取り除く運転、
つまり除霜運転は、ヒートポンプサイクルを冷房モード
に切換えて行う。この除λ゛６運転では、室内熱交換器
が蒸発器として作用するため、室内に冷風が吹き出すと
いう問題がある。In a heat pump type air conditioner, when the outdoor air becomes low temperature and high humidity during heating, silk sticks to the outdoor heat exchanger, so it is necessary to remove it as appropriate. Generally defrosting operation,
In other words, defrosting operation is performed by switching the heat pump cycle to cooling mode. In this λ゛6 operation, the indoor heat exchanger acts as an evaporator, so there is a problem that cold air is blown into the room.
除霜時における冷風の吹き出しを防止するため、従来は
ホットガスを利用した除霜方式、また蓄熱を利用した除
霜方式を採用している。In order to prevent cold air from blowing out during defrosting, defrosting methods that use hot gas or heat storage have conventionally been used.
第４図は前者の除霜方式を採用したヒートポンプ式仝調
機のサイクル系統図を示し、また第５図１−１：後者の
除霜方式を採用したヒートポンプ式仝調機のサイクル系
統図を示している。Figure 4 shows a cycle system diagram of a heat pump type conditioner that uses the former defrosting method, and Figure 5 1-1 shows a cycle system diagram of a heat pump type conditioner that uses the latter defrosting method. It shows.
第４図のヒートポンプ式生調機は、圧縮機１、室内熱交
換器２、室外熱交換器３、四方弁４、減圧装置５により
ヒートポンプサイクルを構成すると共に、室外熱交換器
３と減圧装置５との間に開閉弁６を設け、その開閉弁６
と室外熱交換器３との間と圧縮機１の吐出側とを連絡し
、かつホットガス開閉弁８を介在するホットガスバイパ
ス回路７を設けた構成となっている。The heat pump type raw conditioner shown in Fig. 4 constitutes a heat pump cycle with a compressor 1, an indoor heat exchanger 2, an outdoor heat exchanger 3, a four-way valve 4, and a pressure reducing device 5, and an outdoor heat exchanger 3 and a pressure reducing device. An on-off valve 6 is provided between the on-off valve 6 and the on-off valve 6.
A hot gas bypass circuit 7 is provided which connects the outdoor heat exchanger 3 and the discharge side of the compressor 1, and has a hot gas on-off valve 8 interposed therebetween.
そして、ｔｉ ｔｓ運転時には、圧縮・鯰１エリ吐出さ
れる冷媒を、四方弁４〜室内熱交塵器２〜減ＩＥ装置丘
５〜開閉弁６〜案外熱交換器３〜四方弁４〜王縮機ｌの
順に循環させる。また、暖房運転において室外熱交換器
３にＮ霜が生じ、除霜が必μとなった場合には、ホット
ガス開閉弁８を開き、開閉弁６を閉じて、圧縮＠１の吐
出ガス冷媒を、ホットガスバイパス回路７〜富外熱交換
器８〜四方弁４〜王縮（幾１の順に循環させて、高湛冷
媒の熱によって室外熱交換器８の除霜を行う。During tits operation, the refrigerant compressed and discharged from the four-way valve 4 to the indoor heat exchanger 2 to the reduction IE device 5 to the on-off valve 6 to the unexpected heat exchanger 3 to the four-way valve 4 to the Circulate in order of compressor l. In addition, when N frost occurs in the outdoor heat exchanger 3 during heating operation and defrosting becomes necessary, the hot gas on-off valve 8 is opened, the on-off valve 6 is closed, and the compressed @1 discharged gas refrigerant is is circulated in the following order: hot gas bypass circuit 7 - outdoor heat exchanger 8 - four-way valve 4 - O-condenser (1), and the outdoor heat exchanger 8 is defrosted by the heat of the Takatan refrigerant.
しかし、前述の空調機においては、除霜時に開閉弁６が
閉じていて、冷媒か室内熱交換器２にたまってしまうの
で、除霜サイクル内を循環する冷媒量が不足する。その
結果、圧縮機入力が小さくなり、除霜に必要な熱量を確
保するためには、かなり長い時間除霜運転を行わなけれ
ばならない。However, in the above-mentioned air conditioner, the on-off valve 6 is closed during defrosting, and some refrigerant accumulates in the indoor heat exchanger 2, resulting in an insufficient amount of refrigerant circulating within the defrosting cycle. As a result, the compressor input becomes small, and in order to secure the amount of heat necessary for defrosting, defrosting operation must be performed for a considerably long time.
また、除重運転時には室内熱交換器２が蒸発器として作
用することはないので、室内への冷風の吹き出しを防止
できるが、室内の暖房機能も失なってしまう。Furthermore, since the indoor heat exchanger 2 does not function as an evaporator during the weight removal operation, it is possible to prevent cold air from being blown into the room, but the indoor heating function is also lost.
一方、第５図のヒートポンプ式仝調機は、圧縮機１、室
内熱交換器２、室外熱交換器３、四方弁５、減圧装置５
によりヒートポンプサイクルを構成すると共に、室外熱
交換器３と減圧装置５との間に開閉弁６を設け、その開
閉弁６と室外熱交換器３との間と圧縮機１の吸入側とを
連絡し、かつ液冷媒開閉弁１０および減圧装置１１を介
在するバイパス回路９を設け、該バイパス回路９に、暖
房時゛における高圧回路の冷媒の熱を蓄熱する蓄熱槽１
２を具えた構成となっている。On the other hand, the heat pump type regulator shown in FIG.
In addition to configuring a heat pump cycle, an on-off valve 6 is provided between the outdoor heat exchanger 3 and the pressure reducing device 5, and the on-off valve 6 and the outdoor heat exchanger 3 are connected to the suction side of the compressor 1. A bypass circuit 9 is provided with a liquid refrigerant on-off valve 10 and a pressure reducing device 11 interposed therebetween, and a heat storage tank 1 is provided in the bypass circuit 9 to store heat of the refrigerant in the high-pressure circuit during heating.
It is configured with 2.
そして、暖房運転時には、圧縮機１より吐出される冷媒
を、四方弁４〜蓄熱槽１２〜室内熱交換器２〜減圧装置
５〜囲閉弁６〜室外熱交換器３〜四方弁４〜（圧縮機１
の順に循環させて、暖房を行うと同時に、蓄熱槽１２で
蓄熱する。浣だ、除霜運転では、開閉弁６を閉じ、液冷
媒開閉弁１０を開くと共に、四方弁４を冷房モード位置
に切換えて、ＥＥａ機１の吐出ガス冷媒を、四方弁４〜
室外熱交換器３〜液冷媒開閉弁１０〜減圧装置１１〜蓄
熱槽１２〜四方弁４〜ＥＥ縮様１の順に循環させる。即
ち、暖房中に蓄熱した熱を熱源として室りを熱交換器３
の除霜を行うものである。During heating operation, the refrigerant discharged from the compressor 1 is transferred from the four-way valve 4 to the heat storage tank 12 to the indoor heat exchanger 2 to the pressure reducing device 5 to the enclosure valve 6 to the outdoor heat exchanger 3 to the four-way valve 4 to ( Compressor 1
The heat is stored in the heat storage tank 12 at the same time as heating is performed by circulating the heat in this order. In defrosting operation, the on-off valve 6 is closed, the liquid refrigerant on-off valve 10 is opened, and the four-way valve 4 is switched to the cooling mode position, and the discharged gas refrigerant of the EEa machine 1 is transferred to the four-way valves 4 to 4.
It is circulated in the order of outdoor heat exchanger 3 - liquid refrigerant on/off valve 10 - pressure reducing device 11 - heat storage tank 12 - four-way valve 4 - EE compression type 1. In other words, the heat accumulated during heating is used as a heat source to transform the room into a heat exchanger 3.
It defrosts the air.
しかし、前述の空調機においては、除Ｊｌｊに必要な熱
量を確保できて除屈時間をある程度短縮できるが、第４
図のものと同様に室内の暖房機能を失なってしまう。However, in the above-mentioned air conditioner, the amount of heat required for Jlj can be secured and the deflexion time can be shortened to some extent;
As in the picture, the indoor heating function is lost.
本発明の目的は、従来技術の問題点を解消し、除霜時間
の短縮を可能とし、しかも除霜運転中も暖房を行えるヒ
ートポンプ式空調機を提供することにある。SUMMARY OF THE INVENTION An object of the present invention is to provide a heat pump air conditioner that solves the problems of the prior art, allows shortening of defrosting time, and can perform heating even during defrosting operation.
本発明は、ヒートポンプサイクルにおける室外熱交換器
と減圧装置との間に開閉弁を設け、案外熱交換器と前記
開閉弁との間と圧縮機の吐出部とを連絡し、かつ途中に
ホットガス開閉弁を介在する第１バイパス回路を設け、
暖房時における室内熱交換器の出口側と圧縮様の吸入部
とを連絡し、かつ途中に液冷媒開閉弁を介在する第２バ
イパス回路を設け、案外熱交換器の除矛″ｄ時に、前記
と一トポンプサイクルを暖房そ一部にすると共に、前記
開閉弁を閉、かつ前記ホットガス開閉弁および液冷媒開
閉弁を開とし、圧縮機の吐出ガスの大部分を前記第１バ
イパス回路を通して室外熱交換器に送シ込み、かつ吐出
ガスの一部を室内熱交換器に送シ込み、該室内熱交換器
で凝縮した液冷媒が減圧状態で前記第２バイパス回路を
流通するように構成したことを特徴とする。The present invention provides an on-off valve between an outdoor heat exchanger and a pressure reducing device in a heat pump cycle, connects the heat exchanger and the on-off valve with the discharge part of the compressor, and provides hot gas in the middle. A first bypass circuit including an on-off valve is provided,
A second bypass circuit is provided that connects the outlet side of the indoor heat exchanger and the compression-like suction part during heating, and has a liquid refrigerant on/off valve interposed in the middle, so that when the unexpected heat exchanger is removed, the above-mentioned The first pump cycle is set to the heating section, the on-off valve is closed, the hot gas on-off valve and the liquid refrigerant on-off valve are opened, and most of the gas discharged from the compressor is passed through the first bypass circuit to the outside. A part of the discharged gas is sent to an indoor heat exchanger, and the liquid refrigerant condensed in the indoor heat exchanger is configured to flow through the second bypass circuit in a reduced pressure state. It is characterized by
以下、本発明の一実施例を第１図により説明する。第１
図は本発明によるヒートポンプ式窒調機のサイクル系統
図を示している。このヒートポンプ式仝調機は、圧縮機
１１、室内熱交換器１２、室外熱交換器１３、四方弁１
４、減圧装置１５丘を図示のように配管接続してヒート
ポンプサイクルを構成していると共に、室外熱交換器１
３と減圧装置１５との間に開閉弁１６を設けている。ま
た開閉弁１６と室外熱交換器１３との間と田ｔａ機１１
の吐出部とを、ホットガス開閉弁１８を介設する第１バ
イパス回路１７で連絡し、かつ室内熱交換器１２と減圧
装置１５との間と圧縮機１１の吸入部とを、液冷媒開閉
弁２０および減圧装置２１を介設する第２バイパス回路
１９で連絡している。An embodiment of the present invention will be described below with reference to FIG. 1st
The figure shows a cycle system diagram of the heat pump nitrogen conditioner according to the present invention. This heat pump type regulator includes a compressor 11, an indoor heat exchanger 12, an outdoor heat exchanger 13, and a four-way valve 1.
4. The pressure reducing device 15 is connected to piping as shown in the figure to constitute a heat pump cycle, and the outdoor heat exchanger 1
An on-off valve 16 is provided between the pressure reducing device 15 and the pressure reducing device 15 . Also, between the on-off valve 16 and the outdoor heat exchanger 13 and the
A first bypass circuit 17 in which a hot gas on-off valve 18 is interposed is connected to the discharge part of A second bypass circuit 19 in which a valve 20 and a pressure reducing device 21 are interposed is connected.
前記開閉弁１６は、冷房、暖房運転時には閉じ、除霜運
転時に閉じるよう制御される。The on-off valve 16 is controlled to be closed during cooling or heating operation, and closed during defrosting operation.
前記のホットガス開閉弁１８および液冷媒開閉弁２０は
、冷房、暖房運転時には閉じ、除霜運転時に開くよう制
御される。The hot gas on-off valve 18 and the liquid refrigerant on-off valve 20 are controlled to close during cooling and heating operations and to open during defrosting operations.
次に本発明の作用について説明する。暖房運転により室
外熱交換器１８に着霜が生じて、除１■が心壁になった
場合には、ヒートポンプサイクルを暖房モードの状態の
ま＼、開閉弁１６を閉じ、ホットガス開閉弁１８および
液冷媒開閉弁２０を開く。これにより、圧縮機１１より
吐出される大部分のガス冷媒（ホットガス）は、第１バ
イパス回路１７〜室外熱交換器１８〜四方弁１４〜ＥＥ
Ｉａ機１１の順に循環すると共に、一部のガス冷媒は、
四方弁１４〜室内熱交換器１２〜第２バイパス回路１９
〜ＥＥ縮機１１の順に循環する。この除霜において、室
内熱交換器１２で凝縮液化し、第２バイパス回路１９０
減圧装置２１で減圧されて圧縮機１１に吸入される冷媒
は、該圧縮機１１から吸熱して蒸気冷媒となり、除霜サ
イクル中の冷媒量が増加するので、圧力を高くすること
ができる。Next, the operation of the present invention will be explained. If frost forms on the outdoor heat exchanger 18 due to heating operation and the outer heat exchanger 18 becomes the core wall, the heat pump cycle is left in the heating mode, the on-off valve 16 is closed, and the hot gas on-off valve 18 is closed. and open the liquid refrigerant on/off valve 20. As a result, most of the gas refrigerant (hot gas) discharged from the compressor 11 is transferred from the first bypass circuit 17 to the outdoor heat exchanger 18 to the four-way valve 14 to EE.
While circulating in the order of Ia machine 11, some gas refrigerant is
Four-way valve 14 - indoor heat exchanger 12 - second bypass circuit 19
-EE compressor 11 is circulated in this order. In this defrosting, the indoor heat exchanger 12 condenses and liquefies the second bypass circuit 190.
The refrigerant whose pressure is reduced by the pressure reducing device 21 and sucked into the compressor 11 absorbs heat from the compressor 11 and becomes vapor refrigerant, and the amount of refrigerant during the defrosting cycle increases, so that the pressure can be increased.
従って、圧縮機１１の人力ｆ？ｃ増加させることができ
、除霜に必黴な熱量を確保できて、除霜時間を短縮する
ことができる。Therefore, the human power f of the compressor 11? c can be increased, the amount of heat required for defrosting can be secured, and the defrosting time can be shortened.
また、室内熱交換器１２にもホットガスが供給されるの
で、暖房を行うことができる。Moreover, since hot gas is also supplied to the indoor heat exchanger 12, heating can be performed.
尚、本実施例において、前記液冷媒開閉弁２０は、除霜
中のサイクル圧力、例えば圧縮機吸入圧力を検出し、そ
の圧力が設定圧力以下のとき開くようにしてもよく、ま
たタイマにより開時間を制御するようにしてもよい。In this embodiment, the liquid refrigerant on-off valve 20 may be configured to detect cycle pressure during defrosting, for example, compressor suction pressure, and open when the detected pressure is below a set pressure, or may be opened by a timer. The time may also be controlled.
第２図は本発明の他の実施例を示し、第１図と異なるの
は、第２バイパス回路１９の人口１ｊｌ１１を開閉弁１
６と減圧装置１５との間に接続し、かつ第２バイパス回
路１９１’Ｃおける液冷媒開閉弁２０の下流側に、暖房
時の高圧回路の冷媒の熱を蓄熱す・る蓄熱槽２２を具え
た点にある。FIG. 2 shows another embodiment of the present invention, and the difference from FIG. 1 is that the opening/closing valve 1 of the second bypass circuit 19 is
6 and the pressure reducing device 15, and on the downstream side of the liquid refrigerant on-off valve 20 in the second bypass circuit 191'C, a heat storage tank 22 is provided for storing heat of the refrigerant in the high-pressure circuit during heating. The point is that
次に本実施例の作用を説明する。暖房運転時には、圧縮
機１１より吐出される冷媒を、四方弁１４〜蓄熱槽２２
〜室内熱交換器１２〜減王装置１５〜開閉弁１６〜室外
熱交換器１３〜四方弁１４〜王縮機１１の順匡循環させ
て、室内の暖房を行うと共に、蓄熱槽２２Ｙｃ蓄、積す
る。Next, the operation of this embodiment will be explained. During heating operation, the refrigerant discharged from the compressor 11 is transferred from the four-way valve 14 to the heat storage tank 22.
- Indoor heat exchanger 12 - King reduction device 15 - Opening/closing valve 16 - Outdoor heat exchanger 13 - Four-way valve 14 - Compressor 11 are circulated in order to heat the room, as well as to store and accumulate heat in the heat storage tank 22Yc. do.
−力、除ｎ時Ｖ′ｃは、ヒートポンプサイクルを暖房モ
ードとし、開閉弁１６を閉じ、かつホットガス開閉弁１
８および液冷媒開閉弁１９を開く。これにより、玉網＠
１１より吐出される冷媒の一部が、第１バイパス回路１
７へ室外熱交換器１３〜四方弁１４〜圧縮機１１の順に
循環して、室外熱交換器１８の除霜を行う。また残りの
冷媒が、四方弁１４〜蓄熱槽２２〜室内熱交換器１２〜
減圧装置１５〜第２バイパス回路１９〜蓄熱槽２２〜圧
縮機１１の順に循環し、蓄熱槽２２を熱源として暖房を
行う。従って、本実施例においても、除霜を行うと同時
に暖房も行える。爵に室内熱交換器１２の送風量を小さ
くすることにより、該家内熱交換器１２の吹き出し温度
を上昇きせることかでき、快適性が向上する。- V'c when the power is removed is set to heating mode, the on-off valve 16 is closed, and the hot gas on-off valve 1 is set to V'c.
8 and liquid refrigerant on/off valve 19 are opened. As a result, Tamami @
A part of the refrigerant discharged from the first bypass circuit 1
7, the outdoor heat exchanger 13, the four-way valve 14, and the compressor 11 are circulated in this order, and the outdoor heat exchanger 18 is defrosted. In addition, the remaining refrigerant flows from the four-way valve 14 to the heat storage tank 22 to the indoor heat exchanger 12.
It circulates in the order of the pressure reducing device 15 - the second bypass circuit 19 - the heat storage tank 22 - the compressor 11, and performs heating using the heat storage tank 22 as a heat source. Therefore, in this embodiment as well, heating can be performed at the same time as defrosting. By significantly reducing the amount of air blown from the indoor heat exchanger 12, the temperature of the air blown from the indoor heat exchanger 12 can be increased, improving comfort.
同、前記蓄熱槽２２の蓄熱材としては、水など顕熱を利
用するものでも、塩化カルシウム六水塩など潜熱を利用
するものでもよい。Similarly, the heat storage material of the heat storage tank 22 may be one that utilizes sensible heat, such as water, or one that utilizes latent heat, such as calcium chloride hexahydrate.
第８図も本発明の他の実施例を示し、蓄熱槽２２内に小
容量の゛磁気ヒータ２３を設け、暖房運転中に前記電気
ヒータ２８に通電して蓄熱しておき、除霜運転時に第２
図と同様に冷媒を循環させ、一部の冷媒によって蓄熱を
熱源とする暖房を行うようにしたものである。FIG. 8 also shows another embodiment of the present invention, in which a small-capacity magnetic heater 23 is provided in the heat storage tank 22, the electric heater 28 is energized during heating operation to store heat, and during defrosting operation Second
As shown in the figure, the refrigerant is circulated, and some of the refrigerant is used to perform heating using stored heat as the heat source.
本実施例においても、第２図と同様な効果を達成できる
。In this embodiment as well, effects similar to those shown in FIG. 2 can be achieved.
以上説明したように、本発明によれば、除霜時間を短縮
でき、しかも除霜中に暖房を行える効果がある。As explained above, according to the present invention, there is an effect that the defrosting time can be shortened and heating can be performed during defrosting.
第１図は本発明のヒートポンプ式空調機の一実施例を示
すサイクル系統図、第２図および第３図は本発明の他の
実施例を示すサイクル系統図、第４図および第５図は従
来のサイクル系統図である１１・・・圧縮機 １２・・
・室内熱交換器 １３・・・室外熱交換器 １４・・・
四方弁 １５・・・減圧装置 １６・・・開閉弁 １７
・・・第１バイパス回路 １８・・・ホットガス開閉弁
１９・・・第２バイパス回路 ２０・・・液冷媒開閉
弁 ２１・・・減圧装置 ２２・−・蓄熱槽２３・・パ
亀気ヒータ
代理へ が埋土 尚 倫 舅 大
享１図
￥２ｎ
第４（！ｌFIG. 1 is a cycle system diagram showing one embodiment of the heat pump type air conditioner of the present invention, FIGS. 2 and 3 are cycle system diagrams showing other embodiments of the present invention, and FIGS. 4 and 5 are Conventional cycle system diagram 11... Compressor 12...
・Indoor heat exchanger 13...Outdoor heat exchanger 14...
Four-way valve 15...pressure reducing device 16...on/off valve 17
...First bypass circuit 18...Hot gas on-off valve 19...Second bypass circuit 20...Liquid refrigerant on-off valve 21...Pressure reducing device 22...Thermal storage tank 23...Pink heater To the substitute, the earth was buried Naotomo Daikyo 1 drawing ¥2n No. 4 (!l
Claims (1)
圧装置などによりヒートポンプサイクルを構成すると共
に、室外熱交換器と減圧装置との間に開閉弁を設け、室
外熱交換器と前記開閉弁との間と圧縮機の吐出部とを連
絡し、かつ途中にホットガス開閉弁を介在する第１バイ
パス回路を設け、暖房時における室内熱交換器の出口側
と圧縮機の吸入部とを連絡し、かつ途中に液冷媒開閉弁
を介在する第２バイパス回路を設け、室外熱交換器の除
霜時に、前記ヒートポンプサイクルを暖房モードにする
と共に、前記開閉弁を閉、かつ前記ホットガス開閉弁お
よび液冷媒開閉弁を開とし、圧縮機の吐出ガスの大部分
を前記第１バイパス回路を通して室外熱交換器に送り込
み、かつ吐出ガスの一部を室内熱交換器に送り込み、該
室内熱交換器で凝縮した液冷媒が減圧状態で前記第２バ
イパス回路を流通するように構成したことを特徴とする
ヒートポンプ式空調機。 ２、前記第２バイパス回路は、その入口側が室内熱交換
器と減圧装置との間に接続され、かつ液冷媒開閉弁の出
口側に減圧手段を具えていることを特徴とする特許請求
の範囲第１項記載のヒートポンプ式空調機。 ３、前記第２バイパス回路は、その入口側が減圧装置と
開閉弁との間に接続され、かつ液冷媒開閉弁の出口側に
、暖房時における高圧回路の冷媒の熱を蓄熱する蓄熱槽
を具えていることを特徴とする特許請求の範囲第１項記
載のヒートポンプ式空調機。 ４、前記第２バイパス回路は、その入口側が減圧装置と
開閉弁との間に接続され、かつ液冷媒開閉弁の出口側に
、電気ヒータの熱を蓄熱する蓄熱槽を具えていることを
特徴とする特許請求の範囲第１項記載のヒートポンプ式
空調機。[Claims] 1. A heat pump cycle is configured by a compressor, a four-way valve, an indoor heat exchanger, an outdoor heat exchanger, a pressure reducing device, etc., and an on-off valve is provided between the outdoor heat exchanger and the pressure reducing device. , a first bypass circuit is provided that connects the outdoor heat exchanger and the on-off valve with the discharge part of the compressor, and has a hot gas on-off valve interposed therebetween, and the outlet side of the indoor heat exchanger during heating. A second bypass circuit is provided which connects the intake part of the compressor and the liquid refrigerant on-off valve in the middle, and when defrosting the outdoor heat exchanger, the heat pump cycle is set to heating mode, and the on-off valve is closed, and the hot gas on-off valve and the liquid refrigerant on-off valve are opened, most of the discharge gas of the compressor is sent to the outdoor heat exchanger through the first bypass circuit, and a part of the discharge gas is transferred to the indoor heat exchanger. 1. A heat pump type air conditioner, characterized in that the liquid refrigerant that is fed into the indoor heat exchanger and condensed in the indoor heat exchanger flows through the second bypass circuit in a reduced pressure state. 2. The second bypass circuit is characterized in that its inlet side is connected between the indoor heat exchanger and the pressure reducing device, and the second bypass circuit is provided with a pressure reducing means on the outlet side of the liquid refrigerant on/off valve. The heat pump air conditioner according to item 1. 3. The second bypass circuit has an inlet side connected between the pressure reducing device and the on-off valve, and a heat storage tank on the outlet side of the liquid refrigerant on-off valve that stores heat of the refrigerant in the high-pressure circuit during heating. A heat pump type air conditioner according to claim 1, characterized in that: 4. The second bypass circuit is characterized in that its inlet side is connected between the pressure reducing device and the on-off valve, and the second bypass circuit is provided with a heat storage tank on the outlet side of the liquid refrigerant on-off valve for storing heat from the electric heater. A heat pump air conditioner according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17321184A JPS6152563A (en) | 1984-08-22 | 1984-08-22 | Heat pump type air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17321184A JPS6152563A (en) | 1984-08-22 | 1984-08-22 | Heat pump type air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6152563A true JPS6152563A (en) | 1986-03-15 |
| JPH0512628B2 JPH0512628B2 (en) | 1993-02-18 |
Family
ID=15956177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17321184A Granted JPS6152563A (en) | 1984-08-22 | 1984-08-22 | Heat pump type air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6152563A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6233266A (en) * | 1985-08-07 | 1987-02-13 | 松下電器産業株式会社 | Heat pump type air conditioner |
| US5388420A (en) * | 1993-02-22 | 1995-02-14 | Mitsubishi Denki Kabushiki Kaisha | Heat storage type air conditioner, and defrosting method |
| JP2006132797A (en) * | 2004-11-02 | 2006-05-25 | Matsushita Electric Ind Co Ltd | Air conditioner |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5243472U (en) * | 1975-09-23 | 1977-03-28 | ||
| JPS5618865U (en) * | 1979-07-19 | 1981-02-19 | ||
| JPS58124174A (en) * | 1982-01-20 | 1983-07-23 | 松下電器産業株式会社 | Refrigeration cycle of air conditioner |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5618865B2 (en) * | 1973-02-13 | 1981-05-01 |
-
1984
- 1984-08-22 JP JP17321184A patent/JPS6152563A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5243472U (en) * | 1975-09-23 | 1977-03-28 | ||
| JPS5618865U (en) * | 1979-07-19 | 1981-02-19 | ||
| JPS58124174A (en) * | 1982-01-20 | 1983-07-23 | 松下電器産業株式会社 | Refrigeration cycle of air conditioner |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6233266A (en) * | 1985-08-07 | 1987-02-13 | 松下電器産業株式会社 | Heat pump type air conditioner |
| US5388420A (en) * | 1993-02-22 | 1995-02-14 | Mitsubishi Denki Kabushiki Kaisha | Heat storage type air conditioner, and defrosting method |
| JP2006132797A (en) * | 2004-11-02 | 2006-05-25 | Matsushita Electric Ind Co Ltd | Air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0512628B2 (en) | 1993-02-18 |
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