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公开(公告)号：EP2339268B1
公开(公告)日：2018-08-08
申请号：EP10189829.4
申请日：2010-11-03
发明人： Kim, Rock Hee , Jang, Kyung Seog , Seo, Hyeong Joon , Oh, Jae Hyuk , Kim, Sung Tae , Lee, Wook Jin , Lim, Chang Soo
IPC分类号： F25B13/00
CPC分类号： F25B13/00 , F25B49/02 , F25B2313/003 , F25B2313/007 , F25B2313/0231 , F25B2313/0252 , F25B2313/0253 , F25B2313/02533 , F25B2313/02742 , F25B2600/2513 , Y02P80/152
摘要： Disclosed herein are a heat pump apparatus which includes a first heat exchanger unit (3) and a second heat exchanger unit (4) so as to supply hot water to simultaneously perform a heating operation and a hot water supply operation using two four-way valves (21,22), and an outdoor unit (2) thereof. The heat pump apparatus includes a compressor (10), four-way valves (21,22), an outdoor heat exchanger (23A,23B), a first expansion device (24), a receiver (25), second (27) and third (28) expansion devices, heat exchanger units (3,4), and an accumulator (26), which are sequentially connected in series by refrigerant pipes. The outdoor heat exchanger includes a first part (23A) and a second part (23B) divided from each other, the four-way valves include first (21) and second (22) four-way valves respectively connected to the first and second parts, and the heat exchanger units include a first heat exchanger unit (3) connected to the first four-way valve, and a second heat exchanger unit (4) connected to the second four-way valve.
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2.发明公开
公开(公告)号：EP3208547A4
公开(公告)日：2018-08-01
申请号：EP16799184
申请日：2016-04-27
发明人： YANG GUOZHONG , LI YUEMING
CPC分类号： F25B40/04 , F24F1/06 , F24F1/16 , F24F3/147 , F25B13/00 , F25B29/003 , F25B39/028 , F25B41/04 , F25B2313/0253
摘要： An outdoor unit (100) for a heat recovery VRF air conditioning system and a heat recovery VRF air conditioning system are provided. The outdoor unit (100) comprises: a compressor (2), having an exhaust port (a) and a gas return port (b); a reversing assembly (3), having a first valve port (c), a second valve port (d), a third valve port (e) and a fourth valve port (f); an outdoor heat exchanger (4), having a first end connected to the first valve port (f), and a second end connected to the second connector (12); a plurality of one-way valves, wherein each one-way valve has a circulation end and a stop end, and each one-way valve is opened only in one direction from the circulation end to the stop end; a throttling element (6); and a gas-liquid separator (9).
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公开(公告)号：EP3348937A1
公开(公告)日：2018-07-18
申请号：EP15903575.7
申请日：2015-09-09
发明人： TANAKA, Kosuke , MATSUDA, Takuya
CPC分类号： F25B47/022 , F16K11/00 , F25B1/00 , F25B13/00 , F25B30/02 , F25B41/00 , F25B41/04 , F25B47/02 , F25B2313/0211 , F25B2313/0251 , F25B2313/0253 , F25B2600/2507 , F25B2600/2511
摘要： Provided is an air-conditioning apparatus including a switching valve and a bypass circuit. The switching valve is provided between an expansion valve and an outdoor heat exchanger. The bypass circuit has a first end connected to a refrigerant pipe connecting a compressor and an indoor heat exchanger to each other, and a second end connected to the switching valve. During a heating operation, the air-conditioning apparatus causes a rotating member of the switching valve to rotate to sequentially connect, to the bypass circuit, flow passages of the outdoor heat exchanger connected in parallel, to thereby defrost the outdoor heat exchanger while performing the heating operation.
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公开(公告)号：EP2295896B1
公开(公告)日：2018-07-18
申请号：EP10008964.8
申请日：2010-08-27
发明人： Sekine, Takashi
IPC分类号： F25B13/00
CPC分类号： F25B13/00 , F25B41/046 , F25B2313/007 , F25B2313/0231 , F25B2313/0253 , F25B2313/02742 , F25B2400/075
摘要： A triple-pipeline type first outdoor unit 2 connected to three inter-unit pipelines 5 made up of a high-pressure gas pipe 7, a low-pressure gas pipe 6, and a fluid pipe 8 and a second outdoor unit 3 connected by two pipelines of a gas pipe 35 and a fluid pipe 36 are provided, in which a fluid pipe 36 of this second outdoor unit 3 is connected to the fluid pipe 8, while a gas pipe 35 of the second outdoor unit is selectively connected to the high-pressure gas pipe 7 or the low-pressure gas pipe 6 using a valve-element kit 50 having a four-way valve 51.
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公开(公告)号：EP3336449A1
公开(公告)日：2018-06-20
申请号：EP16835066.8
申请日：2016-08-04
发明人： NISHIYAMA, Takumi , TANAKA, Kosuke
CPC分类号： F24F11/89 , F25B1/00 , F25B6/02 , F25B13/00 , F25B2313/0233 , F25B2313/0253 , F25B2313/0314 , F25B2600/2513 , F25B2700/2104 , F25B2700/21163
摘要： A multiple-type air conditioner (100) is provided with a first indoor unit (110A) and a second indoor unit (110B). When the first indoor unit (110A) is stopped and the second indoor unit (110B) operates with a second indoor heat exchanger (111B) functioning as a condenser, the opening degree of a first indoor expansion valve (140A) is increased if the ratio of a difference between a temperature detected by a first heat exchanger intermediate temperature detector (112A) and a temperature detected by a first heat exchanger outlet temperature detector (113A) to a difference between the temperature detected by the first heat exchanger intermediate temperature detector (112A) and the air temperature is greater than a target value, and the opening degree of the first indoor expansion valve (140A) is reduced if the ratio is lower than the target value.
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公开(公告)号：EP3315877A4
公开(公告)日：2018-06-20
申请号：EP16857220
申请日：2016-09-21
发明人： KATO TAKAHIRO
CPC分类号： F25B13/00 , F24F11/89 , F25B1/00 , F25B49/02 , F25B2313/0253 , F25B2313/02741 , F25B2313/02792 , F25B2600/2507
摘要： An air conditioning system (1) includes a backup operation control unit (61A, 61B) configured to perform backup operation on an operational outdoor unit of a plurality of outdoor units (2A, 2B) when a compressor (10) of any of the plurality of outdoor units (2A, 2B) becomes non-operational; and the backup operation control unit (61A, 61B) is provided with a four-way selector valve synchronization control unit (62A, 62B) configured to operate a four-way selector valve (13) in backup operation to switch from a cooling cycle position to a heating cycle position, such that the four-way selector valve synchronization control unit (62A, 62B) operates the four-way selector valve (13) of the operational outdoor unit temporarily in a cooling cycle position so as to reduce a low pressure of the non-operational outdoor unit and to secure an operating pressure difference of the four-way selector valve (13) of the non-operational outdoor unit, and then operates the four-way selector valve (13) of the non-operational outdoor unit to switch to a heating cycle position, and subsequently operates the four-way selector valve (13) of the operational outdoor unit to switch to a heating cycle position, and synchronizes the four-way selector valves (13).
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公开(公告)号：EP3315877A1
公开(公告)日：2018-05-02
申请号：EP16857220.4
申请日：2016-09-21
发明人： KATO, Takahiro
CPC分类号： F25B13/00 , F24F11/89 , F25B1/00 , F25B49/02 , F25B2313/0253 , F25B2313/02741 , F25B2313/02792 , F25B2600/2507
摘要： An air conditioning system (1) includes a backup operation control unit (61A, 61B) configured to perform backup operation on an operational outdoor unit of a plurality of outdoor units (2A, 2B) when a compressor (10) of any of the plurality of outdoor units (2A, 2B) becomes non-operational; and the backup operation control unit (61A, 61B) is provided with a four-way selector valve synchronization control unit (62A, 62B) configured to operate a four-way selector valve (13) in backup operation to switch from a cooling cycle position to a heating cycle position, such that the four-way selector valve synchronization control unit (62A, 62B) operates the four-way selector valve (13) of the operational outdoor unit temporarily in a cooling cycle position so as to reduce a low pressure of the non-operational outdoor unit and to secure an operating pressure difference of the four-way selector valve (13) of the non-operational outdoor unit, and then operates the four-way selector valve (13) of the non-operational outdoor unit to switch to a heating cycle position, and subsequently operates the four-way selector valve (13) of the operational outdoor unit to switch to a heating cycle position, and synchronizes the four-way selector valves (13).
摘要翻译： 本发明提供一种空调系统（1），其包括：多台室外机组（2A，2B）的运转室外机，在多台室外机（2A，2B）中的任一台的压缩机（10）进行备用运转的备用运转控制部（61A，61B） 室外机组（2A，2B）不工作; 在所述备用运转控制部（61A，61B）上设置有四通切换阀同步控制部（62A，62B），该四通切换阀同步控制部（62A，62B）在备用运转时使四通切换阀（13） 到加热循环位置，使得四通选择阀同步控制单元（62A，62B）暂时将操作室外单元的四通换向阀（13）操作在冷却循环位置，以便减小低压 并且确保非操作室外单元的四通换向阀（13）的操作压力差，然后操作非操作室外单元的四通换向阀（13） 切换到制热循环位置后，使运转室外机的四通切换阀（13）切换到制热循环位置，使四通切换阀（13）同步。
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公开(公告)号：EP3115717A4
公开(公告)日：2018-02-28
申请号：EP15751768
申请日：2015-01-08
申请人： TOSHIBA CARRIER CORP
发明人： HATADA TAKAFUMI , MIURA KEN
CPC分类号： F25B49/02 , F24F11/36 , F24F11/83 , F25B13/00 , F25B2313/0233 , F25B2313/0253 , F25B2313/0314 , F25B2313/0315 , F25B2500/19 , F25B2500/222 , F25B2600/021 , F25B2600/2513 , F25B2700/1931 , F25B2700/1933 , F25B2700/2103 , F25B2700/21152 , Y02B30/741
摘要： According to one embodiment, a refrigeration cycle device includes a refrigeration cycle which returns a refrigerant discharged from a compressor to the compressor via a condenser, a plurality of expansion valves and a plurality of evaporators connected to the expansion valves, respectively. The refrigeration cycle device further includes a detector which predicts a first total degree of opening of the expansion valves at a first time point on the assumption that there is no refrigerant leakage in the refrigeration cycle, based on a change to a first state quantity of the refrigeration cycle at the first time point from a second state quantity of the refrigeration cycle at a second time point earlier than the first time point. The detector detects refrigerant leakage of the refrigeration cycle by comparing the first total degree of opening with a second total degree of opening which is an actual total degree of opening of the expansion valves at the first time point.
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公开(公告)号：EP3112781A4
公开(公告)日：2018-02-28
申请号：EP14884235
申请日：2014-09-05
CPC分类号： F25B47/022 , F25B13/00 , F25B2313/0233 , F25B2313/0251 , F25B2313/0253 , F25B2313/0315 , F25B2341/0661 , F25B2600/2513 , F28D1/0443
摘要： An outdoor unit (A), connected with indoor units (B) and (C) by pipes to constitute a refrigerant circuit, includes a compressor (1) configured to compress and discharge refrigerant; a plurality of parallel heat exchangers (50) configured to allow heat exchange between air and the refrigerant; a first defrosting pipe (15) serving as a flow path for branching a part of the refrigerant discharged by the compressor (1) and allowing the refrigerant to flow into the parallel heat exchanger (50) to be defrosted for defrosting; a first expansion device (10) configured to decompress the refrigerant passing through the first defrosting pipe (15); a second expansion device (7) configured to adjust the pressure of the refrigerant that passed through the parallel heat exchanger (50) to be defrosted; and a controller (30) configured to control the second expansion device (7) such that the pressure of the refrigerant that passed through the parallel heat exchanger (50) to be defrosted falls within a predetermined range, and perform defrosting completion determination based on the degree of subcooling of the refrigerant.
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公开(公告)号：EP3273188A1
公开(公告)日：2018-01-24
申请号：EP17181095.5
申请日：2017-07-13
CPC分类号： F25B49/02 , F25B13/00 , F25B2313/0233 , F25B2313/02521 , F25B2313/0253 , F25B2313/02742 , F25B2313/0314 , F25B2500/31 , F25B2600/0253 , F25B2600/2513 , F25B2700/1933 , F25B2700/2106 , Y02B30/741
摘要： The present invention provides a control device (30) which performs a control of recovering the refrigerant accumulated in an outdoor heat exchanger (12b) in which an operation is stopped.
A control device (30) includes a control switching program (32) which, in a refrigerant circuit including a compressor (10) configured to compress a refrigerant, a first outdoor heat exchanger (12a) configured to liquefy the refrigerant, a second outdoor heat exchanger (12b) during operation stop configured not to function as either a condenser or an evaporator, an expansion valve (23) configured to lower the pressure of the liquefied refrigerant, and an indoor heat exchanger (22) configured to evaporate the low-pressure refrigerant, when a valve opening degree of the expansion valve (23) becomes equal to or larger than a predetermined threshold value, determines that the refrigerant has accumulated in the second outdoor heat exchanger (12b), and switches from a normal operation to a refrigerant recovery operation; and a refrigerant recovery operation control program (34) which, when the control switching program (32) switches to the refrigerant recovery operation, increases a rotational speed of the compressor (10) and controls the pressure on a suction side of the compressor to be lower than the pressure of the second outdoor heat exchanger (12b).摘要翻译： 本发明提供一种控制装置（30），该控制装置（30）进行回收在停止运转的室外热交换器（12b）中积存的制冷剂的控制。 控制装置（30）包括控制切换程序（32），该控制切换程序在包括被构造为压缩制冷剂的压缩机（10）的制冷剂回路中，第一室外热交换器（12a）被构造成液化制冷剂，第二室外热量 其特征在于，在运转停止中，不具有作为冷凝器或蒸发器的功能的热交换器（12b），构成为降低液化制冷剂的压力的膨胀阀（23），以及构成为使低压 当膨胀阀23的阀开度成为规定的阈值以上时，判定为制冷剂积存在第二室外热交换器12b中，从通常运转切换为制冷剂 恢复操作; 和制冷剂再生运转控制程序（34），在控制切换程序（32）切换为制冷剂再生运转时，使压缩机（10）的转速上升，并将压缩机的吸入侧的压力控制为 比第二室外热交换器（12b）的压力低。
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