JPH0480563A - Air conditioner - Google Patents
Air conditionerInfo
- Publication number
- JPH0480563A JPH0480563A JP19249990A JP19249990A JPH0480563A JP H0480563 A JPH0480563 A JP H0480563A JP 19249990 A JP19249990 A JP 19249990A JP 19249990 A JP19249990 A JP 19249990A JP H0480563 A JPH0480563 A JP H0480563A
- Authority
- JP
- Japan
- Prior art keywords
- refrigerant
- way valve
- heat exchanger
- heating device
- 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.)
- Pending
Links
- 239000003507 refrigerant Substances 0.000 claims abstract description 118
- 238000010438 heat treatment Methods 0.000 claims abstract description 102
- 239000007788 liquid Substances 0.000 claims abstract description 13
- 239000003638 chemical reducing agent Substances 0.000 claims description 15
- 238000001816 cooling Methods 0.000 claims description 8
- 238000011084 recovery Methods 0.000 abstract description 20
- 238000000034 method Methods 0.000 abstract 1
- 235000013527 bean curd Nutrition 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000005057 refrigeration Methods 0.000 description 5
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
Landscapes
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、冷媒加熱装置を具備した空気調和機に関する
ものである６
従来の技術
従来の冷媒加熱装置を具備した空気調和機としてはたと
えば第３図に示すように構成されたものか知られている
。以下、図面に基づき説明すると圧縮Ｉｌｌ、四方弁２
、室内熱交換機３、減圧器４第１の逆止弁５、室外熱交
換器６、第２の逆止弁７を環状に連結し、室内熱交換器
３と減圧器４の間から圧縮ｌ！１１の吸入側へ二方弁８
を介して冷媒加熱装置９を接続している。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an air conditioner equipped with a refrigerant heating device. 6. Prior Art A conventional air conditioner equipped with a refrigerant heating device is shown in FIG. It is known that the structure shown in The following will explain based on the drawings: compression Ill, four-way valve 2.
, an indoor heat exchanger 3 , a pressure reducer 4 , a first check valve 5 , an outdoor heat exchanger 6 , and a second check valve 7 are connected in an annular manner, and compressed l is connected between the indoor heat exchanger 3 and the pressure reducer 4 . ! Two-way valve 8 to the suction side of 11
A refrigerant heating device 9 is connected via.
そこで冷房運転は、四方弁２を冷房側に切り替え二方弁
８を閉として圧縮ｔｌＡＩを運転する。したがって冷媒
は第３図の点線矢印のように流れ、室外熱交換器６で凝
縮し室内熱交換器３で蒸発して室内が冷却される。Therefore, in the cooling operation, the four-way valve 2 is switched to the cooling side, the two-way valve 8 is closed, and the compression tlAI is operated. Therefore, the refrigerant flows as indicated by the dotted arrow in FIG. 3, condenses in the outdoor heat exchanger 6, and evaporates in the indoor heat exchanger 3, thereby cooling the room.
次に暖房運転は、四方弁２を暖房側へ切り替え二方弁８
を開として圧ａ＠１．冷媒加熱装置９を運転する。した
かって冷奴は第３図の実線矢印のように流れ、冷媒加熱
装置９の熱交換器９ａで蒸発し室内熱交換器３で凝縮し
て室内が加温される。Next, for heating operation, switch the four-way valve 2 to the heating side and the two-way valve 8
When opening the pressure a@1. The refrigerant heating device 9 is operated. Therefore, the cold tofu flows as shown by the solid arrow in FIG. 3, evaporates in the heat exchanger 9a of the refrigerant heating device 9, and condenses in the indoor heat exchanger 3, thereby heating the room.
ここで暖房運転時は、安定した冷媒量で運転を行なうた
め室外熱交換器６に溜った冷媒を暖房サイクルへ回収す
る必要がある。この冷媒回収制御は暖房運転開始時に四
方弁２を暖房側に切り替え、二方弁８を閉として圧ａ１
！１を一定時間運転することで室外熱交換器６に溜った
冷奴を室内熱交換器３にポンプタウンして回収している
。しかる後二方弁８を開として冷媒回収運転を終了させ
、冷媒加熱装置９を運転して暖房運転を開始する。During heating operation, it is necessary to recover the refrigerant accumulated in the outdoor heat exchanger 6 to the heating cycle in order to operate with a stable amount of refrigerant. This refrigerant recovery control switches the four-way valve 2 to the heating side at the start of heating operation, closes the two-way valve 8, and presses the
! 1 is operated for a certain period of time, the cold tofu accumulated in the outdoor heat exchanger 6 is pumped to the indoor heat exchanger 3 and recovered. Thereafter, the two-way valve 8 is opened to end the refrigerant recovery operation, and the refrigerant heating device 9 is operated to start the heating operation.
発明が解決しようとする課題
ところが上記のような従来の冷媒加熱装置を具備した空
気調和機では、ポンプダウンで冷媒回収を行なっており
、冷媒回収運転中は冷媒が循環しないため冷媒を加熱す
ることができない、したがって冷媒回収運転中は冷媒を
加熱することができす、暖房運転の立ち上かり特性が悪
化してしまうという課題があった。Problems to be Solved by the Invention However, in air conditioners equipped with the conventional refrigerant heating device as described above, refrigerant is recovered by pumping down, and the refrigerant does not circulate during the refrigerant recovery operation, so it is difficult to heat the refrigerant. Therefore, the refrigerant cannot be heated during the refrigerant recovery operation, and the start-up characteristics of the heating operation deteriorate.
本発明はこのような課題を解決するもので、暖房の立ち
上がり特性を改善することを目的とするものである。The present invention solves these problems, and aims to improve the start-up characteristics of heating.
課題を解決するための手段
上記課題を解決するために本発明は、圧縮機、四方弁、
室内熱交換器、減圧器、室外熱交換器などを環状に連結
し、室内熱交換器と減圧器の間から圧縮機の吸入側へ第
１の二方弁を介して冷奴加熱装置を接続し、さらに減圧
器を側路するバイパス回路を第２の二方弁を介して設け
て、暖房運転開始時、四方弁を冷房側、第１の二方弁を
開、第２の二方弁を開として圧１ｒｕｉと冷媒加熱装置
を運転し、圧縮機の吐出ガスで室外熱交換器に溜った液
冷媒を押し出し室内熱交換器および冷媒加熱装置に回収
し、しかる後四方弁を暖房側、第２の二方弁を閉として
暖房運転を行なうようにしたものである。Means for Solving the Problems In order to solve the above problems, the present invention provides a compressor, a four-way valve,
An indoor heat exchanger, a pressure reducer, an outdoor heat exchanger, etc. are connected in a ring, and a cold tofu heating device is connected from between the indoor heat exchanger and the pressure reducer to the suction side of the compressor via the first two-way valve. Furthermore, a bypass circuit for bypassing the pressure reducer is provided via a second two-way valve, and when heating operation starts, the four-way valve is set to the cooling side, the first two-way valve is opened, and the second two-way valve is opened. The refrigerant heating device is operated with the pressure 1rui open, and the discharge gas of the compressor pushes out the liquid refrigerant accumulated in the outdoor heat exchanger and collected into the indoor heat exchanger and the refrigerant heating device.Then, the four-way valve is turned to the heating side, Heating operation is performed with the two-way valve No. 2 closed.
また本発明は、圧縮機、四方弁、室内熱交換器、減圧器
、室外熱交換器などを環状に連結し、室内熱交換器と減
圧器の間から圧縮機の吸入側へ冷媒加熱装置を接続し、
冷媒加熱装置と圧縮機の間に第１の二方弁を設け、さら
に冷媒加熱装置と第１の二方弁の間から逆止弁と室外熱
交換器の間に第２の二方弁を介してバイパス回路を設け
て、暖房運転開始時、四方弁を暖房側、第１の二方弁を
閉、第２の二方弁を開として圧縮機と冷媒加熱装置を運
転し、冷媒加熱装置で蒸発させたガス冷媒で室外熱交換
器に溜った液冷媒を押し出し室内熱交換器および冷媒加
熱装置に回収し、しがる後第１の二方弁を開、第２の二
方弁を閉として暖房運転を行なうようにしたものである
。In addition, the present invention connects a compressor, a four-way valve, an indoor heat exchanger, a pressure reducer, an outdoor heat exchanger, etc. in a ring, and connects a refrigerant heating device to the suction side of the compressor from between the indoor heat exchanger and the pressure reducer. connection,
A first two-way valve is provided between the refrigerant heating device and the compressor, and a second two-way valve is further provided between the refrigerant heating device and the first two-way valve and between the check valve and the outdoor heat exchanger. At the start of heating operation, the compressor and refrigerant heating device are operated with the four-way valve set to the heating side, the first two-way valve closed, and the second two-way valve opened, and the refrigerant heating device The liquid refrigerant accumulated in the outdoor heat exchanger is pushed out using the evaporated gas refrigerant and collected in the indoor heat exchanger and refrigerant heating device. The heating operation is performed when the heater is closed.
作用 上記の手段による作用は以下のとおりである。action The effects of the above means are as follows.
本発明は、暖房運転開始時、四方弁を冷房側、第１の二
方弁を開、第２図の二方弁を開として圧Ｗｉ機と冷奴加
熱装置を運転し、圧縮機の吐出ガスで室外熱交換器に溜
った液冷媒を押し出し室内熱交換器および冷奴加熱装置
に回収し、しがる後四方弁を暖房側、第２の二方弁を閉
として暖房運転を行なうことにより、冷媒回収運転中も
冷媒が圧縮機〜室外熱交換器〜冷媒加熱装置および室内
熱交換器〜圧縮機の経路で循環しているので、冷媒回収
運転中に冷奴加熱装置を運転して冷媒を加熱し、また室
内熱交換器を予熱することが可能となり、暖房の立ち上
がり特性を改善することができる。At the start of heating operation, the present invention operates the pressure Wi machine and the cold tofu heating device with the four-way valve on the cooling side, the first two-way valve opened, and the two-way valve shown in FIG. The liquid refrigerant accumulated in the outdoor heat exchanger is pushed out and collected in the indoor heat exchanger and the cold storage heating device, and then the four-way valve is set to the heating side and the second two-way valve is closed to perform heating operation. Even during refrigerant recovery operation, the refrigerant continues to circulate through the compressor - outdoor heat exchanger - refrigerant heating device and indoor heat exchanger - compressor, so the refrigerant heating device is operated to heat the refrigerant during refrigerant recovery operation. Furthermore, it becomes possible to preheat the indoor heat exchanger, and the start-up characteristics of heating can be improved.
また本発明は、暖房運転開始時、四方弁を暖房側、第１
の二方弁を閉、第２の二方弁を開として圧ｖａａと冷媒
加熱装置を運転し、冷媒加熱装置で蒸発させたガス冷媒
で室外熱交換器に溜った液冷媒を押し出し室内熱交換器
および冷媒加熱装置に回収し、しかる後第１の二方弁を
開、第２の二方弁を閉として暖房運転を行なうことによ
り、冷媒回収運転中も冷媒が圧縮機〜室内熱交換器〜冷
媒加熱装置〜室外熱交換器〜圧縮機の経路で循環してい
るので、冷媒回収運転中に冷媒加熱装置を運転して冷媒
を加熱し、また室内熱交換器を予熱することが可能とな
り、暖房の立ち上がり特性を改善することができる。Further, the present invention sets the four-way valve to the heating side and the first
Close the second two-way valve, open the second two-way valve, operate the refrigerant heating device under VAA, and use the gas refrigerant evaporated by the refrigerant heating device to push out the liquid refrigerant accumulated in the outdoor heat exchanger for indoor heat exchange. After that, the first two-way valve is opened and the second two-way valve is closed to perform heating operation, so that even during the refrigerant recovery operation, the refrigerant is kept between the compressor and the indoor heat exchanger. Since the refrigerant circulates through the path of ~refrigerant heating device~outdoor heat exchanger~compressor, it is possible to operate the refrigerant heating device during refrigerant recovery operation to heat the refrigerant and preheat the indoor heat exchanger. , the heating start-up characteristics can be improved.
実施例
以下、本発明の実施例について、図面に基づいて説明す
る。Embodiments Hereinafter, embodiments of the present invention will be described based on the drawings.
まず、本発明の第１の実施例について説明する。First, a first embodiment of the present invention will be described.
第１図は本実施例の冷凍サイクル図であり、前記従来例
と同一のものには同符号を付けて説明を省略するが、本
実施例では二方弁８とは別の二方弁１０を介して減圧器
４および第１の逆止弁５を側路するバイパス路を設けて
いる。FIG. 1 is a refrigeration cycle diagram of this embodiment. Components that are the same as those in the conventional example are given the same symbols and explanations are omitted. In this embodiment, a two-way valve 10 different from the two-way valve 8 is used. A bypass path is provided which bypasses the pressure reducer 4 and the first check valve 5 via the pressure reducer 4 and the first check valve 5.
そこで、暖房運転の指令が入ると、まず四方弁２を冷房
側に切り替え第１の二方弁８および第２の二方弁１０を
開として、圧ｍａｉｌおよび冷媒加熱装置９を運転して
冷媒回収運転を行なう。冷媒は第１図の実線矢印で示す
ように、圧ｍ１ｌｌから吐出され四方弁２を経て室外熱
交換器６に入り室外熱交換器６に溜った液冷媒を押し出
し、第２の二方弁１０、第１の二方弁８を経て冷媒加熱
装置９で加熱されて蒸発し圧縮機１に戻る。ここで冷媒
の一部は第２の二方弁１０を出た後室内熱交換器３に入
り四方弁２、第２の逆止弁７を経て冷媒加熱装置９から
出た冷媒と合流して圧ｍ１ｌｌに戻る。よって冷媒は冷
媒回収運転中に加熱され、また一部の冷媒で室内熱交換
器３も予熱されている。Therefore, when a heating operation command is received, the four-way valve 2 is switched to the cooling side, the first two-way valve 8 and the second two-way valve 10 are opened, and the pressure mail and refrigerant heating device 9 are operated to cool the refrigerant. Carry out recovery operation. As shown by the solid line arrow in FIG. , the refrigerant passes through the first two-way valve 8, is heated by the refrigerant heating device 9, evaporates, and returns to the compressor 1. After leaving the second two-way valve 10, a part of the refrigerant enters the indoor heat exchanger 3, passes through the four-way valve 2, the second check valve 7, and merges with the refrigerant coming out of the refrigerant heating device 9. Return to pressure m1ll. Therefore, the refrigerant is heated during the refrigerant recovery operation, and the indoor heat exchanger 3 is also preheated by some of the refrigerant.
したかって一定時間経過後、四方弁２を暖房側に切り替
え第２の二方弁１０を閉として冷媒回収運転を終了し暖
房運転を開始すれば、冷媒および室内熱交換器３は充分
高温になっており暖房の立ち上がり特性を改善すること
ができる。Therefore, after a certain period of time has elapsed, if the four-way valve 2 is switched to the heating side and the second two-way valve 10 is closed to end the refrigerant recovery operation and start the heating operation, the refrigerant and the indoor heat exchanger 3 will reach a sufficiently high temperature. This makes it possible to improve the startup characteristics of heating.
次に本発明の第２の実施例について説明する。Next, a second embodiment of the present invention will be described.
第２図は本実施例の冷凍サイクル図であり、前記従来例
と同一のものには同符号を付けて説明を省略するが、本
実施例では第１の二方弁８を冷媒加熱装！９と圧縮機１
の間に設け、冷媒加熱装置９と第１の二方弁８の間から
第１の逆止弁５と室外熱交換器６の間へ第２の二方弁１
０を介してバイパス路を設けている。FIG. 2 is a refrigeration cycle diagram of this embodiment, and the same parts as in the conventional example are given the same reference numerals and explanations are omitted. In this embodiment, the first two-way valve 8 is replaced with a refrigerant heating device. 9 and compressor 1
A second two-way valve 1 is provided between the refrigerant heating device 9 and the first two-way valve 8 and between the first check valve 5 and the outdoor heat exchanger 6.
A bypass path is provided through 0.
そこで、暖房運転の指令が入ると、まず四方弁２を暖房
側に切り替え第１の二方弁８を閉、第２の二方弁１０を
開として、圧ｆｉｌｌｌおよび冷媒加熱装置９を運転し
て冷媒回収運転を行なう。冷媒は第２図の実線矢印で示
すように、圧ｍａｉｌから吐出され四方弁２、室内熱交
換ｌ１１３を経て冷媒加熱装置９で加熱されて蒸発し、
第２の二方弁１０を経て室外熱交換機６に入り室外熱交
換１１６に溜った液冷媒を押し出し、四方弁２、第２の
逆止弁７を経て圧縮ａｌｌに戻る。よって冷媒は冷媒回
収運転中に加熱され、また室内熱交換器３も予熱されて
いる。Therefore, when a command for heating operation is received, first the four-way valve 2 is switched to the heating side, the first two-way valve 8 is closed, the second two-way valve 10 is opened, and the pressure fill and refrigerant heating device 9 are operated. Perform refrigerant recovery operation. As shown by the solid arrow in FIG. 2, the refrigerant is discharged from the pressure mail, passes through the four-way valve 2, the indoor heat exchanger 113, and is heated and evaporated in the refrigerant heating device 9.
The liquid refrigerant enters the outdoor heat exchanger 6 via the second two-way valve 10 and pushes out the liquid refrigerant accumulated in the outdoor heat exchanger 116, and returns to the compression all via the four-way valve 2 and the second check valve 7. Therefore, the refrigerant is heated during the refrigerant recovery operation, and the indoor heat exchanger 3 is also preheated.
したがって一定時間経過後、第１の二方弁８を閉、第２
の二方弁１０を閉として冷媒回収運転を終了し暖房運転
を開始すれば、冷媒および室内熱交換器３は充分高温に
なっており暖房の立ち上がり特性を改善することかでき
る。Therefore, after a certain period of time has passed, the first two-way valve 8 is closed and the second
When the two-way valve 10 is closed to end the refrigerant recovery operation and start the heating operation, the refrigerant and the indoor heat exchanger 3 are at a sufficiently high temperature, and the heating start-up characteristics can be improved.
発明の効果
以上のように本発明によれば、冷媒加熱装置を具備した
空気調和機において、暖房運転開始時、四方弁を冷房側
、第１の二方弁を開、第２の二方弁を開として圧＠ＩＩ
と冷媒加熱装置を運転し、圧縮機の吐出ガスで室外熱交
換器に溜った液冷媒を押し出し室内熱交換器および冷媒
加熱装置に回収し、しかる後四方弁を暖房側、第２の二
方弁を閉として暖房運転を行なうことにより、冷媒回収
運転中も冷媒が圧縮機〜室外熱交換器〜冷媒加熱装置お
よび室内熱交換器〜圧縮機の経路で循環しているので、
冷媒回収運転中に冷媒加熱装置を運転して冷媒を加熱し
、また室内熱交換器を予熱することか可能となり、暖房
の立ち上がり特性を改善することができる。Effects of the Invention As described above, according to the present invention, in an air conditioner equipped with a refrigerant heating device, when heating operation is started, the four-way valve is opened to the cooling side, the first two-way valve is opened, and the second two-way valve is opened. Open the pressure @II
The refrigerant heating device is operated, and the discharge gas of the compressor pushes out the liquid refrigerant accumulated in the outdoor heat exchanger and collected into the indoor heat exchanger and the refrigerant heating device, and then the four-way valve is switched to the heating side and the second two-way By performing heating operation with the valve closed, the refrigerant circulates through the compressor - outdoor heat exchanger - refrigerant heating device and indoor heat exchanger - compressor routes even during refrigerant recovery operation.
During the refrigerant recovery operation, it is possible to operate the refrigerant heating device to heat the refrigerant and preheat the indoor heat exchanger, thereby improving the heating start-up characteristics.
また本発明は、暖房運転開始時、四方弁を暖房側、第１
の二方弁を閉、第２の二方弁を開として圧縮機と冷媒加
熱装置を運転し、冷媒加熱装置で蒸発させたガス冷媒で
室外熱交換器に溜った液冷媒を押し出し室内熱交換器お
よび冷媒加熱装置に回収し、しかる後第１の二方弁を開
、第２の二方弁を閉として暖房運転を行なうことにより
、冷媒回収運転中も冷媒が圧縮機〜室内熱交換器〜冷媒
加熱装置〜室外熱交換器〜圧縮機の経路で循環している
ので、冷媒回収運転中に冷媒加熱装置を運転して冷奴を
加熱し、また室内熱交換器を予熱することが可能となり
、暖房の立ち上がり特性を改善することができる。Further, the present invention sets the four-way valve to the heating side and the first
Close the two-way valve, open the second two-way valve, operate the compressor and refrigerant heating device, and use the gas refrigerant evaporated by the refrigerant heating device to push out the liquid refrigerant accumulated in the outdoor heat exchanger and perform indoor heat exchange. After that, the first two-way valve is opened and the second two-way valve is closed to perform heating operation, so that even during the refrigerant recovery operation, the refrigerant is kept between the compressor and the indoor heat exchanger. Since the refrigerant circulates through the path of ~refrigerant heating device~outdoor heat exchanger~compressor, it is possible to operate the refrigerant heating device during refrigerant recovery operation to heat the chilled tofu and preheat the indoor heat exchanger. , the heating start-up characteristics can be improved.
第１図は本発明の第１実施例の冷凍サイクル図、第２図
は本発明の第２実施例の冷凍サイクル図、第３図は従来
例の冷凍サイクル図である。
１・・・圧縮機、２・・・四方弁、３・・・室内熱交換
器、４・・・減圧器、５・・・第１の逆止弁、６・・・
室外熱交換器、７・・・第２の逆止弁、８・・・第１の
二方弁、９・・・冷媒加熱装置、１０・・・第２の二方
弁。
代理人 森 本 義 私
印１図
１ρ
享２・二８ｉ
第２図
ｔρ−賽２司ス竹FIG. 1 is a refrigeration cycle diagram of a first embodiment of the present invention, FIG. 2 is a refrigeration cycle diagram of a second embodiment of the present invention, and FIG. 3 is a refrigeration cycle diagram of a conventional example. DESCRIPTION OF SYMBOLS 1... Compressor, 2... Four-way valve, 3... Indoor heat exchanger, 4... Pressure reducer, 5... First check valve, 6...
Outdoor heat exchanger, 7... Second check valve, 8... First two-way valve, 9... Refrigerant heating device, 10... Second two-way valve. Agent Yoshi Morimoto Private Seal 1 Figure 1 ρ Kyo 2/28i Figure 2 tρ - Die 2 Tsuji Sutake
Claims (1)
換器などを環状に連結し、前記室内熱交換器と前記減圧
器の間から前記圧縮機の吸入側へ第１の二方弁を介して
冷媒加熱装置を接続し、さらに前記減圧器を側路するバ
イパス回路を第２の二方弁を介して設けて、暖房運転開
始時、前記四方弁を冷房側、前記第１の二方弁を開、前
記第２の二方弁を開として前記圧縮機と前記冷媒加熱装
置を運転し、前記圧縮機の吐出ガスで前記室外熱交換器
に溜った液冷媒を押し出し前記室内熱交換器および前記
冷媒加熱装置に回収し、しかる後前記四方弁を暖房側、
前記第２の二方弁を閉として暖房運転を行なうようにし
た空気調和機。 ２、圧縮機、四方弁、室内熱交換器、減圧器、室外熱交
換器などを環状に連結し、前記室内熱交換器と前記減圧
器の間から前記圧縮機の吸入側へ冷媒加熱装置を接続し
、前記冷媒加熱装置と前記圧縮機の間に第１の二方弁を
設け、さらに前記冷媒加熱装置と前記第１の二方弁の間
から前記逆止弁と前記室外熱交換器の間に第２の二方弁
を介してバイパス回路を設けて、暖房運転開始時、前記
四方弁を暖房側、前記第１の二方弁を閉、前記第２の二
方弁を開として前記圧縮機と前記冷媒加熱装置を運転し
、前記冷媒加熱装置で蒸発させたガス冷媒で前記室外熱
交換器に溜った液冷媒を押し出し前記室内熱交換器およ
び前記冷媒加熱装置に回収し、しかる後前記第１の二方
弁を開、前記第２の二方弁を閉として暖房運転を行なう
ようにした空気調和機。[Claims] 1. A compressor, a four-way valve, an indoor heat exchanger, a pressure reducer, an outdoor heat exchanger, etc. are connected in a ring, and the intake of the compressor is connected between the indoor heat exchanger and the pressure reducer. A refrigerant heating device is connected to the side via a first two-way valve, and a bypass circuit bypassing the pressure reducer is provided via a second two-way valve. On the cooling side, the first two-way valve is opened and the second two-way valve is opened to operate the compressor and the refrigerant heating device, and the discharge gas of the compressor accumulates in the outdoor heat exchanger. The liquid refrigerant is pushed out and collected into the indoor heat exchanger and the refrigerant heating device, and then the four-way valve is turned to the heating side,
The air conditioner performs heating operation with the second two-way valve closed. 2. A compressor, a four-way valve, an indoor heat exchanger, a pressure reducer, an outdoor heat exchanger, etc. are connected in a ring, and a refrigerant heating device is connected from between the indoor heat exchanger and the pressure reducer to the suction side of the compressor. A first two-way valve is provided between the refrigerant heating device and the compressor, and the check valve and the outdoor heat exchanger are connected between the refrigerant heating device and the first two-way valve. A bypass circuit is provided in between through a second two-way valve, and when heating operation starts, the four-way valve is set to the heating side, the first two-way valve is closed, and the second two-way valve is opened. Operating the compressor and the refrigerant heating device, pushing out the liquid refrigerant accumulated in the outdoor heat exchanger with the gas refrigerant evaporated by the refrigerant heating device and collecting it in the indoor heat exchanger and the refrigerant heating device; An air conditioner configured to perform heating operation by opening the first two-way valve and closing the second two-way valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19249990A JPH0480563A (en) | 1990-07-19 | 1990-07-19 | Air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19249990A JPH0480563A (en) | 1990-07-19 | 1990-07-19 | Air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0480563A true JPH0480563A (en) | 1992-03-13 |
Family
ID=16292326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19249990A Pending JPH0480563A (en) | 1990-07-19 | 1990-07-19 | Air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0480563A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010234846A (en) * | 2009-03-30 | 2010-10-21 | Japan Climate Systems Corp | Air conditioner for vehicle |
| JP2010234845A (en) * | 2009-03-30 | 2010-10-21 | Japan Climate Systems Corp | Air conditioner for vehicle |
| JP2014177280A (en) * | 2014-07-03 | 2014-09-25 | Japan Climate Systems Corp | Air conditioner for vehicle |
-
1990
- 1990-07-19 JP JP19249990A patent/JPH0480563A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010234846A (en) * | 2009-03-30 | 2010-10-21 | Japan Climate Systems Corp | Air conditioner for vehicle |
| JP2010234845A (en) * | 2009-03-30 | 2010-10-21 | Japan Climate Systems Corp | Air conditioner for vehicle |
| JP2014177280A (en) * | 2014-07-03 | 2014-09-25 | Japan Climate Systems Corp | Air conditioner for vehicle |
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