JP3250753B2 - Heat pump type air conditioner - Google Patents
Heat pump type air conditionerInfo
- Publication number
- JP3250753B2 JP3250753B2 JP31190792A JP31190792A JP3250753B2 JP 3250753 B2 JP3250753 B2 JP 3250753B2 JP 31190792 A JP31190792 A JP 31190792A JP 31190792 A JP31190792 A JP 31190792A JP 3250753 B2 JP3250753 B2 JP 3250753B2
- Authority
- JP
- Japan
- Prior art keywords
- cooling
- heating
- compressor
- heat exchanger
- dehumidifying
- 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.)
- Expired - Fee Related
Links
Landscapes
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は冷暖房兼除湿機能を備え
たヒートポンプ式空気調和機に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat pump type air conditioner having a cooling / heating / dehumidifying function.
【０００２】[0002]
【従来の技術】図２において、ａは圧縮機、ｂは室外熱
交換器、ｃは冷暖房用絞り装置であり、ｄ1 ，ｄ2 は一
対の室内熱交換器であって、並列接続された除湿用の絞
り装置ｅと通電閉型電磁電磁開閉弁ｖ1 を有して直列接
続されることにより除湿部ｆを構成する。圧縮機ａ−室
外熱交換器ｂ−冷暖房用絞り装置ｃ−除湿部ｆ−圧縮機
ａを連結する管路ｐは冷暖房用冷媒回路を構成し、圧縮
機ａの吐出側ｐ1 と吸入側ｐ2 に接続して冷媒の流れ方
向を逆転させる冷暖房切換弁ｇが介設される。2. Description of the Related Art In FIG. 2, a is a compressor, b is an outdoor heat exchanger, c is a throttle device for cooling and heating, and d 1 and d 2 are a pair of indoor heat exchangers which are connected in parallel. It has a throttle device e for dehumidification energized closed electromagnetic solenoid valve v 1 constituting the dehumidifying part f by being connected in series. Line p which connects the compressor a- outdoor heat exchanger b- Air throttle device c- dehumidifying unit f- compressor a constitutes a refrigerant circuit for cooling and heating, the discharge-side p 1 and the suction side p of the compressor a 2 , a cooling / heating switching valve g for reversing the flow direction of the refrigerant is interposed.
【０００３】圧縮機ａの吐出側から室外熱交換機ｂと冷
暖房用絞り装置ｅ間の管路ｐに対して管路ｐ′を設ける
ことにより除霜用バイパス回路が形成され、管路ｐ′に
は通電開型電磁弁ｖ2 が介設される。また、冷暖房用絞
り装置ｃに対して、除湿用バイパス管路ｐ″により直列
接続された通電開型電磁開閉弁ｖ3 と逆止弁ｈが並列接
続されている。A bypass line for defrosting is formed by providing a pipeline p 'from the discharge side of the compressor a to a pipeline p between the outdoor heat exchanger b and the cooling / heating expansion device e. is energized open solenoid valve v 2 is interposed. Also, for heating and cooling expansion device c, which are connected in series energized open solenoid on-off valve v 3 and a check valve h are connected in parallel by a bypass line p "for dehumidification.
【０００４】通常の冷暖房運転時においては、電磁開閉
弁ｖ1 ，ｖ2 ，ｖ3 に対する通電が断たれているので、
通電閉型電磁開閉弁ｖ1 のみが開いている。従って、冷
房運転時には圧縮機ａ−冷暖房切換弁ｇ−室外熱交換器
ｂ−冷暖房用絞り装置ｃ−室内熱交換器ｄ1 −通電閉型
電磁開閉弁ｖ1 −室内熱交換器ｄ2 −冷暖房切換弁ｇ−
圧縮機ａの経路で冷媒が流れ、暖房運転時には圧縮機ａ
−冷暖房切換弁ｇ−室内熱交換器ｄ2 −通電閉型電磁開
閉弁ｖ1 −室内熱交換器ｄ1 −冷暖房用絞り装置ｃ−室
外熱交換器ｂ−冷暖房切換弁ｇ−圧縮機ａの経路で冷媒
が流れる。[0004] During normal cooling and heating operation, the energization of the electromagnetic on-off valves v 1 , v 2 , v 3 is cut off.
Only energized closed electromagnetic on-off valve v 1 is open. Therefore, at the time of the cooling operation, the compressor a-the cooling / heating switching valve g-the outdoor heat exchanger b-the cooling / heating expansion device c-the indoor heat exchanger d 1 -the energized closed electromagnetic on / off valve v 1 -the indoor heat exchanger d 2 -the heating and cooling Switching valve g-
Refrigerant flows through the path of the compressor a, and during the heating operation, the compressor a
-Cooling and heating switching valve g-Indoor heat exchanger d 2 -Electrically closed electromagnetic on-off valve v 1 -Indoor heat exchanger d 1 -Cooling and heating throttle device c-Outdoor heat exchanger b-Cooling and heating switching valve g-Compressor a The refrigerant flows in the path.
【０００５】除湿時においては、通電閉型電磁開閉弁ｖ
1 と通電開型電磁開閉弁ｖ3 に通電しつつ冷房運転状態
とすることにより、冷媒は圧縮機ａ−冷暖房切換弁ｇ−
室外熱交換器ｂ−電磁開閉弁ｖ3 −逆止弁ｈ−室内熱交
換器ｄ1 −除湿用の絞り装置ｅ−室内熱交換器ｄ2 −冷
暖房切換弁ｇ−圧縮機ａの経路で流れる。At the time of dehumidification, the energized closed solenoid valve v
With cooling operation state while energized 1 energized open solenoid on-off valve v 3, the refrigerant compressor a- Air selector valve g-
Outdoor heat exchanger b- solenoid valve v 3 - check valve h- indoor heat exchanger d 1 - flows through a path of cooling and heating switching valve g- compressor a - throttling device e- indoor heat for dehumidifying exchanger d 2 .
【０００６】他方、除霜時においては、暖房運転状態
で、通電開型電磁弁ｖ2 に通電することにより、圧縮機
ａの吐出側の高熱冷媒の一部を室外熱交換機ｂに直接流
して除霜する。[0006] On the other hand, during defrosting, in the heating operation state, by energizing the energized open solenoid valve v 2, a portion of the discharge side of the high heat refrigerant compressor a flowing directly to the outdoor heat exchanger b Defrost.
【０００７】[0007]
【発明が解決しようとする課題】上記従来技術にあって
は、多数の電磁開閉弁ｖ1 ，ｖ2 ，ｖ3 が用いられると
共に、除霜用バイパス管路ｐ′と除湿用バイパス管路
ｐ″が別々に設けられていて、全体の構成が複雑となる
欠点がある。In the above prior art, a large number of solenoid on-off valves v 1 , v 2 , v 3 are used, and a defrosting bypass line p ′ and a dehumidifying bypass line p are used. Are provided separately, and there is a disadvantage that the entire configuration is complicated.
【０００８】本発明はかかる従来技術の欠点に着目し、
除霜用バイパス管路を除湿用として兼用すると共に、電
磁開閉弁を少なくして全体構成を簡略化することを意図
するものである。The present invention focuses on the drawbacks of the prior art,
The purpose of the present invention is to use the bypass line for defrosting also for dehumidification and to reduce the number of solenoid on-off valves to simplify the overall configuration.
【０００９】[0009]
【課題を解決するための手段】上記の目的を達成するた
め、本発明においては、圧縮機と、冷暖房用の室外熱交
換器と、並列に接続した除湿用絞り装置および電磁開閉
弁を介して直列に接続され少なくとも１つが冷暖房用の
室内熱交換器を兼ねた一対の除湿用熱交換器とからなる
除湿部と、該除湿部と該室外熱交換器との間に介在する
冷暖房用絞り装置と、圧縮機，室外熱交換器，冷暖房用
絞り装置，除湿部，圧縮機からなる冷暖房用冷媒回路に
おける冷媒の流れ方向を逆転させる冷暖房切換弁と、圧
縮機の吐出側から該冷暖房用絞り装置の両側の該冷暖房
用冷媒回路に対して電磁開閉弁と２個の逆止弁を介して
連通する除湿兼除霜用バイパス回路とから成ることを特
徴とする。In order to achieve the above object, in the present invention, a compressor, an outdoor heat exchanger for cooling and heating, and a dehumidifying throttle device and an electromagnetic on-off valve connected in parallel are provided. A dehumidifying unit comprising a pair of dehumidifying heat exchangers connected in series, at least one of which serves also as an indoor heat exchanger for cooling and heating, and a throttle device for cooling and heating interposed between the dehumidifying unit and the outdoor heat exchanger A cooling / heating switching valve for reversing the flow direction of the refrigerant in a cooling / heating refrigerant circuit including a compressor, an outdoor heat exchanger, a cooling / heating expansion device, a dehumidifying unit, and a compressor; and a cooling / heating expansion device from the discharge side of the compressor. And a bypass circuit for dehumidification and defrosting, which communicates with the cooling / heating refrigerant circuit on both sides of the device via an electromagnetic on-off valve and two check valves.
【００１０】[0010]
【作用】冷房運転状態において、除湿兼除霜用バイパス
回路の電磁開閉弁を開くと共に除湿部の電磁開閉弁を閉
じることにより冷媒はバイパス回路から除湿部の熱交換
器と除湿用絞り装置に流れる。In the cooling operation state, the refrigerant flows from the bypass circuit to the heat exchanger and the dehumidifying throttle device of the dehumidifying unit by opening the electromagnetic on / off valve of the dehumidifying / defrosting bypass circuit and closing the electromagnetic on / off valve of the dehumidifying unit. .
【００１１】暖房運転状態において、除湿兼除霜用バイ
パス回路の電磁開閉弁を開くことにより圧縮機の吐出側
の高熱冷媒が直接室外熱交換器に流れる。In the heating operation state, the high-temperature refrigerant on the discharge side of the compressor flows directly to the outdoor heat exchanger by opening the solenoid on-off valve of the bypass circuit for dehumidification and defrosting.
【００１２】[0012]
【実施例】図１において、Ａは圧縮機、Ｂは室外熱交換
器、Ｃは冷暖房用絞り装置、Ｄ1，Ｄ2 は一対の室内熱
交換器、Ｅは除湿用絞り装置、Ｖ1 は通電閉型電磁開閉
弁であり、並列接続された除湿用絞り装置Ｅと通電閉型
電磁弁Ｖ1 により一対の室内熱交換器Ｄ1 ，Ｄ2 が直列
接続されることにより除湿部Ｆを構成する。In FIG. 1, A is a compressor, B is an outdoor heat exchanger, C is a throttle device for cooling and heating, D 1 and D 2 are a pair of indoor heat exchangers, E is a throttle device for dehumidification, and V 1 is a throttle device for dehumidification. A dehumidifying section F is formed by connecting a pair of indoor heat exchangers D 1 and D 2 in series by a dehumidifying throttle device E and an energized closed solenoid valve V 1 connected in parallel. I do.
【００１３】圧縮機Ａ−室外熱交換器Ｂ−冷暖房用絞り
装置Ｃ−除湿部Ｆ−圧縮機Ａを連結する管路Ｐは冷暖房
用冷媒回路を構成し、圧縮機Ａの吐出側Ｐ1 と吸入側Ｐ
2 に接続して冷媒の流れ方向を逆転させる冷暖房切換弁
Ｇが介設される。圧縮機Ａの吐出側Ｐ1 から冷暖房用絞
り装置Ｅの両側の冷暖房用冷媒回路Ｐに対して管路Ｐ′
及び分岐回路Ｐ″を設けることにより除湿兼除霜用バイ
パス回路が形成され、管路Ｐ′には通電開型電磁開閉弁
Ｖ2 が設けられ、分岐回路Ｐ″には逆止弁Ｈ1 ，Ｈ2 が
設けられる。The pipeline P connecting the compressor A, the outdoor heat exchanger B, the cooling / heating expansion device C, the dehumidifying section F, and the compressor A constitutes a cooling / heating refrigerant circuit, and is connected to the discharge side P 1 of the compressor A. Suction side P
2 , a cooling / heating switching valve G for reversing the flow direction of the refrigerant is interposed. Conduit P against both sides of the heating and cooling refrigerant circuit P of air conditioning throttle device E from the discharge side P 1 of the compressor A '
And the branch circuit P ″, a bypass circuit for dehumidification and defrosting is formed. The conduit P ′ is provided with an energized open solenoid valve V 2 , and the branch circuit P ″ is provided with a check valve H 1 , H 2 is provided.
【００１４】上記構成において、冷房運転時と暖房運転
時には通電閉型電磁弁Ｖ1 と通電開型電磁開閉弁Ｖ2 に
対する通電が遮断されており、冷媒は従来例と同様に流
れる。冷房運転時において、電磁開閉弁Ｖ1 ，Ｖ2 に通
電すると、冷媒はバイパス回路の通電開型電磁弁Ｖ2 −
逆止弁Ｈ2 から冷暖房用冷媒回路の室内熱交換器Ｄ1−
除湿用絞り装置Ｅ−室内熱交換器Ｄ2 −冷暖房切換弁Ｇ
−圧縮機Ａに流れ、除湿部Ｆで除湿する。[0014] In the above structure, during heating operation and the cooling operation are de-energized for energizing closed electromagnetic valves V 1 and current open electromagnetic on-off valve V 2, the refrigerant flows similarly to the conventional example. In the cooling operation, when the solenoid valves V 1 and V 2 are energized, the refrigerant is supplied to the energized open solenoid valve V 2 − of the bypass circuit.
Indoor heat exchanger heating and cooling the refrigerant circuit from the check valve H 2 D 1 -
Diaphragm dehumidifier E- indoor heat exchanger D 2 - Air selector valve G
-Flow to compressor A and dehumidify in dehumidifier F.
【００１５】暖房運転時において、電磁開閉弁Ｖ2 に通
電すると、高圧冷媒はバイパス回路の通電開型電磁弁Ｖ
2 −逆止弁Ｈ1 から室外熱交換器Ｂに直接流れて除霜す
る。In the heating operation, when the solenoid on-off valve V 2 is energized, the high-pressure refrigerant is supplied to the energized open solenoid valve V in the bypass circuit.
2 - defrosting flows directly from the check valve H 1 to the outdoor heat exchanger B.
【００１６】[0016]
【発明の効果】本発明は上記した如くに圧縮機と、冷暖
房用の室外熱交換器と、並列に接続した除湿用絞り装置
および電磁開閉弁を介して直列に接続され少なくとも１
つが冷暖房用の室内熱交換器を兼ねた一対の除湿用熱交
換器とからなる除湿部と、該除湿部と該室外熱交換器と
の間に介在する冷暖房用絞り装置と、圧縮機，室外熱交
換器，冷暖房用絞り装置，除湿部，圧縮機からなる冷暖
房用冷媒回路における冷媒の流れ方向を逆転させる冷暖
房切換弁と、圧縮機の吐出側から該冷暖房用絞り装置の
両側の該冷暖房用冷媒回路に対して電磁開閉弁と２個の
逆止弁を介して連通する除湿兼除霜用バイパス回路とか
ら成ることを特徴とするものであるから、冷暖房用冷媒
回路に対するバイパス回路を除湿と除霜に兼用し得ると
共に使用する電磁開閉弁を少なくすることが可能とな
り、全体構成を簡略化することができる。As described above, the present invention relates to a compressor, an outdoor heat exchanger for cooling and heating, at least one compressor connected in series via a dehumidifying expansion device and a solenoid on-off valve connected in parallel.
A dehumidifying section comprising a pair of dehumidifying heat exchangers each serving also as an indoor heat exchanger for cooling and heating, a cooling / heating throttle device interposed between the dehumidifying section and the outdoor heat exchanger; A cooling / heating switching valve for reversing the flow direction of the refrigerant in a cooling / heating refrigerant circuit including a heat exchanger, a cooling / heating expansion device, a dehumidifying section, and a compressor; It is characterized by comprising a bypass circuit for dehumidifying and defrosting which communicates with the refrigerant circuit via an electromagnetic on-off valve and two check valves, so that a dehumidifying bypass circuit for the cooling / heating refrigerant circuit is provided. It is also possible to reduce the number of electromagnetic on-off valves that can be used for defrosting and to use, thus simplifying the overall configuration.
【図１】本発明にかかるヒートポンプ式空気調和機の冷
媒回路図である。FIG. 1 is a refrigerant circuit diagram of a heat pump type air conditioner according to the present invention.
【図２】従来例の冷媒回路図である。FIG. 2 is a refrigerant circuit diagram of a conventional example.
Ａ 圧縮機 Ｂ 室外熱交換器 Ｃ 冷暖房用絞り装置 Ｄ1 ，Ｄ2 室内熱交換器 Ｅ 除湿用絞り装置 Ｆ 除湿部 Ｇ 冷暖房切換弁 Ｈ1 ，Ｈ2 逆止弁 Ｐ 冷暖房用冷媒回路 Ｐ′ 除湿兼除霜用バイパス回路 Ｖ1 ，Ｖ2 電磁開閉弁Reference Signs List A compressor B outdoor heat exchanger C cooling and heating expansion device D 1 , D 2 indoor heat exchanger E dehumidification expansion device F dehumidifying unit G air conditioning switching valve H 1 , H 2 check valve P cooling and heating refrigerant circuit P ′ dehumidification and defrosting bypass circuit V 1, V 2 solenoid valves
Claims (1)
並列に接続した除湿用絞り装置および電磁開閉弁を介し
て直列に接続され少なくとも１つが冷暖房用の室内熱交
換器を兼ねた一対の除湿用熱交換器とからなる除湿部
と、該除湿部と該室外熱交換器との間に介在する冷暖房
用絞り装置と、圧縮機，室外熱交換器，冷暖房用絞り装
置，除湿部，圧縮機からなる冷暖房用冷媒回路における
冷媒の流れ方向を逆転させる冷暖房切換弁と、圧縮機の
吐出側から該冷暖房用絞り装置の両側の該冷暖房用冷媒
回路に対して電磁開閉弁と２個の逆止弁を介して連通す
る除湿兼除霜用バイパス回路とから成ることを特徴とす
るヒートポンプ式空気調和機。1. A compressor, an outdoor heat converter for cooling and heating,
A dehumidifying unit comprising a pair of dehumidifying heat exchangers connected in series via a dehumidifying throttle device and an electromagnetic on-off valve connected in parallel, at least one of which serves also as an indoor heat exchanger for cooling and heating; A cooling and heating throttle device interposed between the outdoor heat exchanger and a cooling and heating device for reversing a flow direction of a refrigerant in a cooling and heating refrigerant circuit including a compressor, an outdoor heat exchanger, a cooling and heating throttle device, a dehumidifying unit, and a compressor. A switching valve, and a dehumidifying and defrosting bypass circuit that communicates from the discharge side of the compressor to the cooling / heating refrigerant circuit on both sides of the cooling / heating expansion device via an electromagnetic on-off valve and two check valves. A heat pump type air conditioner characterized by comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31190792A JP3250753B2 (en) | 1992-11-20 | 1992-11-20 | Heat pump type air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31190792A JP3250753B2 (en) | 1992-11-20 | 1992-11-20 | Heat pump type air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06159839A JPH06159839A (en) | 1994-06-07 |
| JP3250753B2 true JP3250753B2 (en) | 2002-01-28 |
Family
ID=18022857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31190792A Expired - Fee Related JP3250753B2 (en) | 1992-11-20 | 1992-11-20 | Heat pump type air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3250753B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106482391B (en) * | 2016-11-02 | 2019-05-21 | 广东志高暖通设备股份有限公司 | A kind of air-conditioning equipment and its reducing pressure by regulating flow control device |
-
1992
- 1992-11-20 JP JP31190792A patent/JP3250753B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06159839A (en) | 1994-06-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2723953B2 (en) | Air conditioner | |
| JP2001317831A (en) | Air conditioner | |
| JP3250753B2 (en) | Heat pump type air conditioner | |
| JPH11237135A (en) | Air conditioner | |
| JP2525338B2 (en) | Defrost mechanism of heat pump type air conditioner | |
| JPH0891042A (en) | Heat pump type air-conditioning cooling and heating equipment | |
| JPH03217771A (en) | Air conditioner | |
| JP3290759B2 (en) | Air conditioner for electric vehicle | |
| JPH02223778A (en) | Defrosting device for air-conditioning machine | |
| JPH0732460U (en) | Air conditioner | |
| JPH06337186A (en) | Defrosting controller for air-conditioning machine | |
| JPH11211255A (en) | Air conditioning equipment | |
| JPH1137602A (en) | Air conditioner | |
| KR910021567A (en) | Air conditioner | |
| JPH05340625A (en) | Air conditioner | |
| JPH03263562A (en) | Cooling heating device with refrigerant heating means | |
| JPH025323Y2 (en) | ||
| JPH08320172A (en) | Air conditioner | |
| JPH0519723Y2 (en) | ||
| JP2000205684A (en) | Air conditioning equipment | |
| JPS5914678Y2 (en) | air conditioner | |
| JPH04158172A (en) | Air conditioner | |
| JPH09280687A (en) | Air-conditioning system | |
| JPS58124174A (en) | Refrigeration cycle of air conditioner | |
| JPH05113276A (en) | Air conditioner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20011016 |
|
| LAPS | Cancellation because of no payment of annual fees |