JP2017194202A5 - - Google Patents
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- JP2017194202A5 JP2017194202A5 JP2016083665A JP2016083665A JP2017194202A5 JP 2017194202 A5 JP2017194202 A5 JP 2017194202A5 JP 2016083665 A JP2016083665 A JP 2016083665A JP 2016083665 A JP2016083665 A JP 2016083665A JP 2017194202 A5 JP2017194202 A5 JP 2017194202A5
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- 239000003507 refrigerant Substances 0.000 claims description 36
- 238000001816 cooling Methods 0.000 claims description 25
- 238000010438 heat treatment Methods 0.000 claims description 22
- 238000004378 air conditioning Methods 0.000 claims description 11
- 238000005057 refrigeration Methods 0.000 claims description 9
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 238000007664 blowing Methods 0.000 claims 2
- 239000007788 liquid Substances 0.000 claims 2
Description
本発明者らは前記課題を解決するべく鋭意検討を行った。その結果、以下の知見を見出した。即ち、本発明の要旨は、空調対象となる複数の室内機のうちの一部の室内機で冷房運転又は暖房運転のいずれか一方のモードで運転を行いつつ、当該一部の室内機以外の残りの室内機においては、前記一部の室内機での運転モードとは異なるモードとして暖房運転又は冷房運転を行う冷暖同時運転が可能な空気調和機において、前記複数の室内機のそれぞれに設置された、複数の室内熱交換器と、当該室内熱交換器に対して室内の空気を送風し、当該室内の空気と冷媒との間で熱交換を行う室内ファンと、前記室内熱交換器に対して配管により接続され、当該配管を通流して送られる冷媒を圧縮する圧縮機と、当該圧縮機からみて冷媒流れの上流側又は下流側に設けられ、前記配管を通流する冷媒を膨張させる第一膨張機構と、前記室内熱交換器、前記圧縮機及び前記第一膨張機構とともに冷凍サイクルを構成する室外熱交換器と、当該室外熱交換器に対して室外の空気を送風して、当該室外の空気と冷媒との間で熱交換を行う室外ファンと、前記冷凍サイクルにおいて前記室外熱交換器が凝縮器として機能するように流路を形成させる冷房主体運転と、前記冷凍サイクルにおいて前記室外熱交換器が蒸発器として機能するように流路を形成させる暖房主体運転と、を切り替える冷暖主体切り替え装置と、前記冷房主体運転のときには前記室外熱交換器において熱交換された後の冷媒、又は、前記暖房主体運転のときには前記室外熱交換器において熱交換される前の冷媒を膨張させる第二膨張機構と、前記室外熱交換器からの冷媒が直接、又は、前記一部の室内機の室内熱交換器で熱交換された後の冷媒が前記残りの室内機の室内熱交換器に供給されるように流路を切り替える流路切り替え機構と、前記流路切り替え機構によって流路が切り替えられ、前記一部の室内機の室内熱交換器で熱交換された後の冷媒が前記残りの室内機の室内熱交換器に供給されているときに、前記残りの室内機の室内熱交換器による空調能力に応じて、前記室外ファンの回転数を制御する演算制御装置と、を備え、前記演算制御装置は、前記室外ファンの回転数が予め定められた下限以下になった場合に、前記冷房主体運転のときには暖房運転となっている前記残りの室内機の室内熱交換器による空調能力に応じて前記第二膨張機構を制御し、前記暖房主体運転のときには冷房運転となっている前記残りの室内機の室内熱交換器による空調能力に応じて前記第二膨張機構を制御することで、前記室外熱交換器における冷媒循環量を調整する、ことを特徴とする、空気調和機に関する。
The present inventors have intensively studied to solve the above problems. As a result, the following findings were found. That is, the gist of the present invention is that a part of the indoor units to be air-conditioned is operated in one of the cooling operation mode or the heating operation mode while the other indoor units are operated. The remaining indoor units are installed in each of the plurality of indoor units in an air conditioner capable of simultaneous cooling and heating in which heating operation or cooling operation is performed as a mode different from the operation mode of the some indoor units. In addition, a plurality of indoor heat exchangers, an indoor fan that blows indoor air to the indoor heat exchanger and performs heat exchange between the indoor air and the refrigerant, and the indoor heat exchanger And a compressor that compresses the refrigerant that is sent through the pipe and is sent through the pipe, and a compressor that is provided upstream or downstream of the refrigerant flow as viewed from the compressor and that expands the refrigerant that flows through the pipe. One expansion mechanism and the indoor heat exchange The outdoor heat exchanger constituting the refrigeration cycle together with the compressor, the compressor and the first expansion mechanism, and the outdoor air is blown to the outdoor heat exchanger, and heat is generated between the outdoor air and the refrigerant. An outdoor fan that performs exchange, a cooling-main operation that forms a flow path so that the outdoor heat exchanger functions as a condenser in the refrigeration cycle, and an outdoor heat exchanger that functions as an evaporator in the refrigeration cycle A cooling / heating main switching device that switches between a heating-main operation for forming a flow path in the air-cooling system, a refrigerant after heat exchange in the outdoor heat exchanger during the cooling-main operation, or the outdoor heat during the heating-main operation. The second expansion mechanism for expanding the refrigerant before heat exchange in the exchanger and the refrigerant from the outdoor heat exchanger are directly or in the indoor heat exchanger of the some indoor units The flow path switching mechanism that switches the flow path so that the refrigerant after the replacement is supplied to the indoor heat exchangers of the remaining indoor units, and the flow path switching mechanism that switches the flow path, When the refrigerant after heat exchange in the indoor heat exchanger of the machine is supplied to the indoor heat exchanger of the remaining indoor unit, according to the air conditioning capacity of the indoor heat exchanger of the remaining indoor unit, An arithmetic and control unit that controls the rotational speed of the outdoor fan, and the arithmetic and control unit is configured to perform a heating operation during the cooling main operation when the rotational speed of the outdoor fan is equal to or lower than a predetermined lower limit. The second expansion mechanism is controlled according to the air conditioning capability of the remaining indoor unit by the indoor heat exchanger, and the indoor heat exchange of the remaining indoor unit that is in the cooling operation during the heating main operation Air conditioning capacity The refrigerant expansion amount in the outdoor heat exchanger is adjusted by controlling the second expansion mechanism in accordance with the air conditioner.
Claims (5)
前記複数の室内機のそれぞれに設置された、複数の室内熱交換器と、
当該室内熱交換器に対して室内の空気を送風し、当該室内の空気と冷媒との間で熱交換を行う室内ファンと、
前記室内熱交換器に対して配管により接続され、当該配管を通流して送られる冷媒を圧縮する圧縮機と、
当該圧縮機からみて冷媒流れの上流側又は下流側に設けられ、前記配管を通流する冷媒を膨張させる第一膨張機構と、
前記室内熱交換器、前記圧縮機及び前記第一膨張機構とともに冷凍サイクルを構成する室外熱交換器と、
当該室外熱交換器に対して室外の空気を送風して、当該室外の空気と冷媒との間で熱交換を行う室外ファンと、
前記冷凍サイクルにおいて前記室外熱交換器が凝縮器として機能するように流路を形成させる冷房主体運転と、前記冷凍サイクルにおいて前記室外熱交換器が蒸発器として機能するように流路を形成させる暖房主体運転と、を切り替える冷暖主体切り替え装置と、
前記冷房主体運転のときには前記室外熱交換器において熱交換された後の冷媒、又は、前記暖房主体運転のときには前記室外熱交換器において熱交換される前の冷媒を膨張させる第二膨張機構と、
前記室外熱交換器からの冷媒が直接、又は、前記一部の室内機の室内熱交換器で熱交換された後の冷媒が前記残りの室内機の室内熱交換器に供給されるように流路を切り替える流路切り替え機構と、
前記流路切り替え機構によって流路が切り替えられ、前記一部の室内機の室内熱交換器で熱交換された後の冷媒が前記残りの室内機の室内熱交換器に供給されているときに、前記残りの室内機の室内熱交換器による空調能力に応じて、前記室外ファンの回転数を制御する演算制御装置と、を備え、
前記演算制御装置は、前記室外ファンの回転数が予め定められた下限以下になった場合に、前記冷房主体運転のときには暖房運転となっている前記残りの室内機の室内熱交換器による空調能力に応じて前記第二膨張機構を制御し、前記暖房主体運転のときには冷房運転となっている前記残りの室内機の室内熱交換器による空調能力に応じて前記第二膨張機構を制御することで、前記室外熱交換器における冷媒循環量を調整することを特徴とする、空気調和機。 While operating in either one of the cooling operation mode or the heating operation mode in some of the indoor units to be air-conditioned, in the remaining indoor units other than the some indoor units, In an air conditioner capable of simultaneous heating and cooling that performs heating operation or cooling operation as a mode different from the operation mode in some indoor units,
A plurality of indoor heat exchangers installed in each of the plurality of indoor units;
An indoor fan for blowing indoor air to the indoor heat exchanger and exchanging heat between the indoor air and the refrigerant;
A compressor connected to the indoor heat exchanger by a pipe and compressing a refrigerant sent through the pipe;
A first expansion mechanism that is provided upstream or downstream of the refrigerant flow as viewed from the compressor and expands the refrigerant flowing through the pipe;
An outdoor heat exchanger constituting a refrigeration cycle together with the indoor heat exchanger, the compressor and the first expansion mechanism;
An outdoor fan that blows outdoor air to the outdoor heat exchanger and exchanges heat between the outdoor air and the refrigerant;
Cooling main operation for forming a flow path so that the outdoor heat exchanger functions as a condenser in the refrigeration cycle, and heating for forming a flow path so that the outdoor heat exchanger functions as an evaporator in the refrigeration cycle A cooling / heating main body switching device for switching between main body operation and
A second expansion mechanism that expands the refrigerant after heat exchange in the outdoor heat exchanger during the cooling main operation, or the refrigerant before heat exchange in the outdoor heat exchanger during the heating main operation;
The refrigerant from the outdoor heat exchanger flows directly or after the heat exchange in the indoor heat exchanger of the some indoor units is supplied to the indoor heat exchanger of the remaining indoor units. A flow path switching mechanism for switching the path;
When the flow path is switched by the flow path switching mechanism and the refrigerant after heat exchange is performed in the indoor heat exchanger of the some indoor units is supplied to the indoor heat exchanger of the remaining indoor units, An arithmetic and control unit that controls the rotational speed of the outdoor fan according to the air conditioning capability of the indoor heat exchanger of the remaining indoor units ,
When the rotational speed of the outdoor fan is equal to or lower than a predetermined lower limit, the arithmetic and control unit is configured to perform air conditioning by the indoor heat exchanger of the remaining indoor units that are in heating operation during the cooling main operation. And controlling the second expansion mechanism according to the air conditioning capability of the remaining indoor units in the cooling operation during the heating-main operation. The air conditioner is characterized by adjusting a refrigerant circulation amount in the outdoor heat exchanger .
前記複数の室内機のそれぞれに設置された、複数の室内熱交換器と、
当該室内熱交換器に対して室内の空気を送風し、当該室内の空気と冷媒との間で熱交換を行う室内ファンと、
前記室内熱交換器に対して配管により接続され、当該配管を通流して送られる冷媒を圧縮する圧縮機と、
当該圧縮機からみて冷媒流れの上流側又は下流側に設けられ、前記配管を通流する冷媒を膨張させる第一膨張機構と、
前記室内熱交換器、前記圧縮機及び前記第一膨張機構とともに冷凍サイクルを構成する室外熱交換器と、
当該室外熱交換器に対して室外の空気を送風して、当該室外の空気と冷媒との間で熱交換を行う室外ファンと、
前記冷凍サイクルにおいて前記室外熱交換器が凝縮器として機能するように流路を形成させる冷房主体運転と、前記冷凍サイクルにおいて前記室外熱交換器が蒸発器として機能するように流路を形成させる暖房主体運転と、を切り替える冷暖主体切り替え装置と、
前記冷房主体運転のときには前記室外熱交換器において熱交換された後の冷媒、又は、前記暖房主体運転のときには前記室外熱交換器において熱交換される前の冷媒を膨張させる第二膨張機構と、
前記室外熱交換器からの冷媒が直接、又は、前記一部の室内機の室内熱交換器で熱交換された後の冷媒が前記残りの室内機の室内熱交換器に供給されるように流路を切り替える流路切り替え機構と、
前記流路切り替え機構によって流路が切り替えられ、前記一部の室内機の室内熱交換器で熱交換された後の冷媒が前記残りの室内機の室内熱交換器に供給されているときに、前記残りの室内機の室内熱交換器による空調能力に応じて、前記室外ファンの回転数を制御する演算制御装置と、を備え、
前記演算制御装置は、前記室外ファンの回転数が予め定められた下限以下になったときに、前記第二膨張機構により、前記室外熱交換器における冷媒循環量を調整し、さらに、前記第二膨張機構による冷媒循環量が下限になったときに、前記冷房主体運転及び前記暖房主体運転のいずれか一方から他方に運転モードを切り替えることを特徴とする、空気調和機。 While operating in either one of the cooling operation mode or the heating operation mode in some of the indoor units to be air-conditioned, in the remaining indoor units other than the some indoor units, In an air conditioner capable of simultaneous heating and cooling that performs heating operation or cooling operation as a mode different from the operation mode in some indoor units,
A plurality of indoor heat exchangers installed in each of the plurality of indoor units;
An indoor fan for blowing indoor air to the indoor heat exchanger and exchanging heat between the indoor air and the refrigerant;
A compressor connected to the indoor heat exchanger by a pipe and compressing a refrigerant sent through the pipe;
A first expansion mechanism that is provided upstream or downstream of the refrigerant flow as viewed from the compressor and expands the refrigerant flowing through the pipe;
An outdoor heat exchanger constituting a refrigeration cycle together with the indoor heat exchanger, the compressor and the first expansion mechanism;
An outdoor fan that blows outdoor air to the outdoor heat exchanger and exchanges heat between the outdoor air and the refrigerant;
Cooling main operation for forming a flow path so that the outdoor heat exchanger functions as a condenser in the refrigeration cycle, and heating for forming a flow path so that the outdoor heat exchanger functions as an evaporator in the refrigeration cycle A cooling / heating main body switching device for switching between main body operation and
A second expansion mechanism that expands the refrigerant after heat exchange in the outdoor heat exchanger during the cooling main operation, or the refrigerant before heat exchange in the outdoor heat exchanger during the heating main operation;
The refrigerant from the outdoor heat exchanger flows directly or after the heat exchange in the indoor heat exchanger of the some indoor units is supplied to the indoor heat exchanger of the remaining indoor units. A flow path switching mechanism for switching the path;
When the flow path is switched by the flow path switching mechanism and the refrigerant after heat exchange is performed in the indoor heat exchanger of the some indoor units is supplied to the indoor heat exchanger of the remaining indoor units, An arithmetic and control unit that controls the rotational speed of the outdoor fan according to the air conditioning capability of the indoor heat exchanger of the remaining indoor units,
The arithmetic and control unit adjusts a refrigerant circulation amount in the outdoor heat exchanger by the second expansion mechanism when the rotational speed of the outdoor fan is equal to or lower than a predetermined lower limit . when the refrigerant circulating amount of the expansion mechanism becomes lower, and switches the other to the operation mode from one of the cooling dominant operation and the heating-main operation, air conditioner.
前記演算制御装置は、
当該室内機の能力が空調負荷に対し過多なときには、前記室外熱交換器における冷媒循環量が多くなるように前記第二膨張機構を制御し、
当該室内機の能力が空調負荷に対し不足するときには、前記室外熱交換器における冷媒循環量が少なくなるように前記第二膨張機構を制御することを特徴とする、請求項１又は２に記載の空気調和機。 In an indoor unit that performs heating or cooling in an operation mode different from the main body in either the cooling operation that is the main body in the cooling main operation or the heating operation that is the main body in the heating main operation,
The arithmetic and control unit is
When the capacity of the indoor unit is excessive with respect to the air conditioning load, the second expansion mechanism is controlled so that the refrigerant circulation amount in the outdoor heat exchanger increases.
3. The second expansion mechanism according to claim 1, wherein when the capacity of the indoor unit is insufficient with respect to an air conditioning load, the second expansion mechanism is controlled so that a refrigerant circulation amount in the outdoor heat exchanger is reduced. Air conditioner.
前記室内機の能力が空調負荷に対し過多なときには、前記室外熱交換器における放熱量が大きくなるように前記室外ファンの回転数を大きくし、
前記室内機の能力が空調負荷に対し不足するときには、前記室外熱交換器における放熱量が小さくなるように前記室外ファンの回転数を小さくすることを特徴とする、請求項４に記載の空気調和機。 The arithmetic and control unit is
When the capacity of the indoor unit is excessive with respect to the air conditioning load, the rotational speed of the outdoor fan is increased so that the heat radiation amount in the outdoor heat exchanger is increased,
When the capacity of the indoor unit is insufficient to air conditioning load, characterized in that to reduce the rotational speed of the outdoor fan as the heat radiation amount in the outdoor heat exchanger is reduced, the air conditioner according to claim 4 Machine.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016083665A JP6723640B2 (en) | 2016-04-19 | 2016-04-19 | Air conditioner |
| PCT/JP2017/007692 WO2017183308A1 (en) | 2016-04-19 | 2017-02-28 | Air conditioner |
| CN201780024214.4A CN109073264B (en) | 2016-04-19 | 2017-02-28 | Air conditioning apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016083665A JP6723640B2 (en) | 2016-04-19 | 2016-04-19 | Air conditioner |
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| Publication Number | Publication Date |
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| JP2017194202A JP2017194202A (en) | 2017-10-26 |
| JP2017194202A5 true JP2017194202A5 (en) | 2018-10-04 |
| JP6723640B2 JP6723640B2 (en) | 2020-07-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| JP2016083665A Active JP6723640B2 (en) | 2016-04-19 | 2016-04-19 | Air conditioner |
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| JP (1) | JP6723640B2 (en) |
| CN (1) | CN109073264B (en) |
| WO (1) | WO2017183308A1 (en) |
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| KR102266359B1 (en) * | 2020-01-16 | 2021-06-17 | 엘지전자 주식회사 | Control Method of the Air Conditioner System for Simultaneous Cooling and Heating and Air Conditioner System using the same |
| CN114211929B (en) * | 2021-11-25 | 2023-11-28 | 三一重机有限公司 | Air conditioner control method, air conditioner control system and working machine |
| EP4227605A1 (en) * | 2022-02-11 | 2023-08-16 | Daikin Europe N.V. | Refrigeration device |
| WO2024201778A1 (en) * | 2023-03-29 | 2024-10-03 | 三菱電機株式会社 | Air conditioning device |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2531256B2 (en) * | 1989-02-17 | 1996-09-04 | 三菱電機株式会社 | Air conditioner |
| JP2777176B2 (en) * | 1989-02-27 | 1998-07-16 | 株式会社東芝 | Air conditioner |
| JP2974179B2 (en) * | 1991-10-09 | 1999-11-08 | 松下冷機株式会社 | Multi-room air conditioner |
| JP3627101B2 (en) * | 2000-10-20 | 2005-03-09 | 株式会社日立製作所 | Air conditioner |
| JP4399667B2 (en) * | 2004-09-08 | 2010-01-20 | 日立アプライアンス株式会社 | Air conditioner |
| JP2006343052A (en) * | 2005-06-10 | 2006-12-21 | Hitachi Ltd | Simultaneous cooling and heating multi-air conditioner |
| CN102713461B (en) * | 2009-12-28 | 2015-06-10 | 大金工业株式会社 | Heat-pump system |
| WO2013093966A1 (en) * | 2011-12-21 | 2013-06-27 | 日立アプライアンス株式会社 | Air conditioner |
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- 2017-02-28 WO PCT/JP2017/007692 patent/WO2017183308A1/en active Application Filing
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