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1. 发明专利

GB2563776A Air conditioning device 未知
公开(公告)号：GB2563776A
公开(公告)日：2018-12-26
申请号：GB201814961
申请日：2016-05-16
申请人： MITSUBISHI ELECTRIC CORP
发明人： KAZUYA WATANABE , SHINICHI WAKAMOTO , NAOFUMI TAKENAKA , NAOMICHI TAMURA , TADASHI ARIYAMA
IPC分类号： F24F11/89 , F25B47/02 , F25B5/02
摘要： Provided is an air conditioning device comprising: a first defrost piping that branches, from a main circuit, a portion of a refrigerant discharged from a compressor and supplies the refrigerant to a parallel heat exchanger to be defrosted from among a plurality of parallel heat exchangers; a second defrost piping that returns, to the main circuit, the refrigerant that was supplied to the parallel heat exchanger to be defrosted via the first defrost piping; a first throttle device that is provided to the first defrost piping; a second throttle device that is provided to the second defrost piping and that adjusts the refrigerant pressure of the parallel heat exchanger to be defrosted; a third throttle device that is provided between a connection point between an outlet of the second defrost piping and the main circuit and an indoor heat exchanger functioning as an evaporator from among a plurality of indoor heat exchangers, and that adjusts the refrigerant pressure of the indoor heat exchanger functioning as an evaporator; and a control device. The control device separately controls the second throttle device and the third throttle device during a heating-centered defrost operation.

2. 发明专利

GB2563776C Air conditioning apparatus 未知
公开(公告)号：GB2563776C
公开(公告)日：2020-12-02
申请号：GB201814961
申请日：2016-05-16
申请人： MITSUBISHI ELECTRIC CORP
发明人： NAOMICHI TAMURA , TADASHI ARIYAMA , KAZUYA WATANABE , SHINICHI WAKAMOTO , NAOFUMI TAKENAKA
IPC分类号： F25B47/02 , F24F11/89 , F25B5/02
摘要： An air-conditioning apparatus includes: a first defrosting pipe branching from a main circuit to supply a portion of refrigerant discharged from a compressor to one of plural parallel heat exchangers to be defrosted; a second defrosting pipe which returns, to the main circuit, the refrigerant supplied through the first defrosting pipe to the one parallel heat exchanger; a first expansion device provided on the first defrosting pipe; a second expansion device provided on the second defrosting pipe to adjust a pressure of the refrigerant in the one parallel heat exchanger; and a third expansion device provided between a connection point between an outlet of the second defrosting pipe and the main circuit and one of plural indoor heat exchangers functioning as an evaporator, to adjust a pressure of the refrigerant in the one of the indoor heat exchangers; and a controller that controls the second and third expansion devices individually.

3. 发明专利

GB2555258B Air conditioning apparatus 未知
公开(公告)号：GB2555258B
公开(公告)日：2020-08-19
申请号：GB201718085
申请日：2015-05-28
申请人： MITSUBISHI ELECTRIC CORP
发明人： TADASHI ARIYAMA , NAOMICHI TAMURA , NAOFUMI TAKENAKA , KAZUYA WATANABE
IPC分类号： F24F11/42 , F24F11/83 , F24F11/84 , F24F11/89 , F25B13/00 , F25B47/02

4. 发明专利

GB2563776B Air conditioning apparatus 未知
公开(公告)号：GB2563776B
公开(公告)日：2020-11-04
申请号：GB201814961
申请日：2016-05-16
申请人： MITSUBISHI ELECTRIC CORP
发明人： KAZUYA WATANABE , SHINICHI WAKAMOTO , NAOFUMI TAKENAKA , NAOMICHI TAMURA , TADASHI ARIYAMA
IPC分类号： F25B47/02 , F24F11/89 , F25B5/02
摘要： An air-conditioning apparatus includes: a first defrosting pipe branching from a main circuit to supply a portion of refrigerant discharged from a compressor to one of plural parallel heat exchangers to be defrosted; a second defrosting pipe which returns, to the main circuit, the refrigerant supplied through the first defrosting pipe to the one parallel heat exchanger; a first expansion device provided on the first defrosting pipe; a second expansion device provided on the second defrosting pipe to adjust a pressure of the refrigerant in the one parallel heat exchanger; and a third expansion device provided between a connection point between an outlet of the second defrosting pipe and the main circuit and one of plural indoor heat exchangers functioning as an evaporator, to adjust a pressure of the refrigerant in the one of the indoor heat exchangers; and a controller that controls the second and third expansion devices individually.

5. 发明专利

GB2555258A Air conditioning device 未知
公开(公告)号：GB2555258A
公开(公告)日：2018-04-25
申请号：GB201718085
申请日：2015-05-28
申请人： MITSUBISHI ELECTRIC CORP
发明人： TADASHI ARIYAMA , NAOMICHI TAMURA , NAOFUMI TAKENAKA , KAZUYA WATANABE
IPC分类号： F24F11/42 , F24F11/89 , F25B47/02
摘要： In this air conditioning device, a heat source machine and an indoor machine including an indoor-side flow rate control device and an indoor-side heat exchanger are coupled to one another by means of refrigerant piping. The heat source machine is provided with: an outdoor-side heat exchanging unit including a plurality of outdoor-side heat exchangers coupled in parallel with one another to a compressor; first heat-source-side bypass piping one end of which is coupled to a discharge side of the compressor and the other end of which is coupled to each of the plurality of outdoor-side heat exchangers; a first pressure reducing device which is provided in the first heat-source-side bypass piping and which reduces the pressure of refrigerant discharged from the compressor; a bypass opening and closing unit which is provided in the first heat-source-side bypass piping and which either allows refrigerant discharged from the compressor to pass through to each of the outdoor-side heat exchangers, or shuts off the flow of refrigerant to each of the outdoor-side heat exchangers; second heat-source-side bypass piping which couples the plurality of outdoor-side heat exchangers to one another, and which causes refrigerant that has flowed out from one outdoor-side heat exchanger to flow into another outdoor-side heat exchanger; and a second pressure reducing device which is provided in the second heat-source-side bypass piping and which reduces the pressure of refrigerant passing through the second heat-source-side bypass piping.

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