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公开(公告)号：US12104833B2
公开(公告)日：2024-10-01
申请号：US17641654
申请日：2020-03-13
发明人： Xiangwei Qiu , Xiangyang Li , Hao Zhang , Kui Tao , Shunquan Li , Junjie Lei , Zhengxing Wang , Tiangui Zhu
CPC分类号： F25B47/025 , F24F1/08 , F24F1/14 , F24F1/26 , F25B13/00 , F25B2313/0233 , F25B2400/06 , F25B2400/13
摘要： An air conditioner includes first and second refrigerant circulation systems each including an indoor unit including an indoor heat exchanger and an indoor throttle device, an outdoor unit including a compressor and an outdoor heat exchanger, an exhaust pipe arranged at an exhaust port of the compressor, an intake pipe arranged at an intake port of the compressor, a liquid-side piping connecting the exhaust pipe, the outdoor heat exchanger, the indoor throttle device, and the indoor heat exchanger in sequence, and a gas-side piping connecting the indoor heat exchanger and the intake pipe. The air conditioner further includes a heat circulation device configured to convey heat energy or cold energy of at least one of the indoor heat exchanger of the first refrigerant circulation system or the indoor heat exchanger of the second refrigerant circulation system into a room.
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公开(公告)号：US11885512B2
公开(公告)日：2024-01-30
申请号：US17291612
申请日：2018-12-19
发明人： Ryota Akaiwa , Makoto Tanishima , Yoji Onaka , Takamasa Uemura
IPC分类号： F28F9/02 , F24F1/14 , F24F1/0068 , F25B39/04 , F28D1/053
CPC分类号： F24F1/14 , F24F1/0068 , F25B39/04 , F28D1/053 , F28F9/02
摘要： A heat exchanger has first and second heat exchange units disposed one above the other. In a case where the heat exchanger functions as a condenser, refrigerant flows through the second heat exchange unit after having flowed through the first heat exchange unit. An intermediate header unit through which the first heat exchange unit and the second heat exchange unit communicate with each other causes at least a portion of refrigerant having flowed through a first heat transfer pipe group on the windward side of the first heat exchange unit to flow to a fourth heat transfer pipe group. Further, the intermediate header unit causes at least a portion of refrigerant having flowed through a second heat transfer pipe group on the leeward side of the first heat exchange unit to flow into a third heat transfer pipe group or the fourth heat transfer pipe group.
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公开(公告)号：US11802708B2
公开(公告)日：2023-10-31
申请号：US17606937
申请日：2019-05-20
发明人： Atsushi Ishikawa
IPC分类号： F24F1/14 , F24F11/52 , F24F1/38 , F24F110/10
CPC分类号： F24F11/52 , F24F1/14 , F24F1/38 , F24F2110/10
摘要： An outdoor unit includes a heat exchanger, a fan having a motor having coils to blow air to the heat exchanger, a connection switching unit to switch a connection state of the coils between a first connection state and a second connection state in which a line voltage is lower than a line voltage in the first connection state, and a temperature sensor to detect a temperature. When the motor is not driven, the connection switching unit sets the connection state of the coils to the second connection state. When the motor rotates, the connection switching unit sets the connection state of the coils to the first connection state if a detected temperature by the temperature sensor is higher than or equal to a threshold, and the connection switching unit sets the connection state of the coils to the second connection state if the detected temperature is lower than the threshold.
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公开(公告)号：US11143420B2
公开(公告)日：2021-10-12
申请号：US16333338
申请日：2016-12-21
发明人： Hayato Horie , Mamoru Hamada
摘要： An air-conditioning apparatus includes a refrigerant circuit and a fluid circuit. The fluid circuit includes a first branch circuit that connects a branching portion at which a downstream portion of a second heat exchanger branches and a connecting portion farther downstream in a direction of fluid flow than the branching portion, and a second branch circuit that connects a branching portion at which a portion farther downstream than the connecting portion of the first branch circuit branches and a connecting portion farther downstream in the direction of fluid flow than the branching portion of the second branch circuit. The first branch circuit is provided with a third heat exchanger that exchanges heat between fluid flowing through the fluid circuit and outdoor air, and the second branch circuit is provided with a heat storage tank that stores fluid having exchanged heat with outdoor air in the third heat exchanger.
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公开(公告)号：US10731875B2
公开(公告)日：2020-08-04
申请号：US16080799
申请日：2016-05-12
发明人： Ryozo Onuki , Shinichi Uchino
摘要： An air-conditioning-apparatus outdoor unit includes a casing, an air-sending device chamber, a machine chamber, a partition, a heat exchanger cover, and an electric box including a bottom plate that defines a bottom surface of the electric box and that is joined to an upper end of the heat exchanger cover. The casing includes a shell panel having an outdoor-air inlet that is open. The heat exchanger cover is positioned to face the outdoor-air inlet, and defines, together with the partition and the shell panel, an air passage communicating with the outdoor-air inlet in the machine chamber. The bottom plate of the electric box has a bottom opening communicating with the air passage.
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公开(公告)号：US20200232709A1
公开(公告)日：2020-07-23
申请号：US16487865
申请日：2017-12-28
发明人： Ken SATOU , Masanori JINDOU , Yoshio ORITANI , Kouju YAMADA , Satoshi INOUE
摘要： A heat exchange unit including: a casing that includes a suction port on a side surface and a blow-out port on a top surface; a fan that faces the blow-out port in the casing and that feeds air into the casing through the suction port and discharges the air from the casing through the blow-out port; and a heat exchanger that is disposed below the fan in the casing and that causes a refrigerant to exchange heat with the air.
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公开(公告)号：US20200011618A1
公开(公告)日：2020-01-09
申请号：US16572774
申请日：2019-09-17
发明人： Nagatoshi OKI , Shuuhei TADA , Takeshi ENDO
摘要： Provided is an outdoor unit providing: a housing; multiple heat transfer pipes; multiple fins arranged in a heat transfer pipe direction and provided at the multiple heat transfer pipes; header pipe assemblies each connected to both ends of each heat transfer pipe; a support bracket provided between an outermost one of the fins in the heat transfer pipe direction and each header pipe assembly to block air passage in a space provided with no fins and fixed to the housing to support the heat transfer pipes and the fins; and a fixing member attached to the support bracket and serving as a fixing position for fixing the support bracket to the housing, wherein the fixing member has an insulating portion for insulating the support bracket and the housing from each other.
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公开(公告)号：US20190301752A1
公开(公告)日：2019-10-03
申请号：US16333338
申请日：2016-12-21
发明人： Hayato HORIE , Mamoru HAMADA
IPC分类号： F24F1/14 , F24F11/46 , F24F11/63 , F24F11/84 , F24F11/875
摘要： An air-conditioning apparatus includes a refrigerant circuit and a fluid circuit. The fluid circuit includes a first branch circuit that connects a branching portion at which a downstream portion of a second heat exchanger branches and a connecting portion farther downstream in a direction of fluid flow than the branching portion, and a second branch circuit that connects a branching portion at which a portion farther downstream than the connecting portion of the first branch circuit branches and a connecting portion farther downstream in the direction of fluid flow than the branching portion of the second branch circuit. The first branch circuit is provided with a third heat exchanger that exchanges heat between fluid flowing through the fluid circuit and outdoor air, and the second branch circuit is provided with a heat storage tank that stores fluid having exchanged heat with outdoor air in the third heat exchanger.
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公开(公告)号：US20190128542A1
公开(公告)日：2019-05-02
申请号：US16096363
申请日：2016-07-14
发明人： Kei FURUKUBO , Yuudai MORIKAWA , Misaki KODA , Yutaka AOYAMA
摘要： An air-conditioning-apparatus outdoor unit includes a casing, a heat exchanger disposed in upper part of an inner space of the casing, a bottom plate located at a bottom of the casing and having a drain hole through which drain water that is generated on the heat exchanger is discharged outside, a support disposed in the inner space of the casing and supporting the heat exchanger in the upper part of the inner space of the casing, and a drain structure disposed under the heat exchanger and guiding the drain water to the bottom plate.
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公开(公告)号：US20190024923A1
公开(公告)日：2019-01-24
申请号：US15755666
申请日：2015-11-12
发明人： Daisuke ITO
摘要： Provided is an air conditioner which can suppress refrigerant leakage in a room and has a high safety even when using a flammable refrigerant. The air conditioner includes an indoor apparatus placed in a room, and an outdoor apparatus placed in an outside of the room separated from the room by a wall. The indoor apparatus includes a first refrigerant pipe in which a flammable refrigerant flows. The outdoor apparatus includes a second refrigerant pipe which is connected to the first refrigerant pipe and in which the flammable refrigerant flows. The second refrigerant pipe has a portion smaller in thickness than a minimum-thickness portion of the first refrigerant pipe.
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