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公开(公告)号：EP3015808B1
公开(公告)日：2018-08-29
申请号：EP13888478.8
申请日：2013-06-28
CPC分类号： F28F17/00 , F28F1/126 , F28F17/005 , F28F2215/00
摘要： Provided is a heat exchanger that can, even when frosting occurs on an upwind side of the heat exchanger, exchange heat continuously on a downwind side of a fin by securing a ventilation path, and in addition, further improve drainage of the melt water. The heat exchanger (10) of the present invention includes a plurality of tubes (21) each having a refrigerant flowpath (21a) through which a refrigerant flows and a corrugated fin (22) including a plurality of heat transfer walls (23) that are arranged in a running direction of the tubes (21) and span from one to the other of adjacent tubes among the plurality of tubes (21), the fin being capable of exchanging heat with the tubes (21). Each of the heat transfer walls (23) includes a heat transfer piece (23R(L)) leading to a leading edge portion (23a) positioned on the upwind side of a passing airflow (A) and a leading edge portion (23b) indented toward the downwind side in the direction of the airflow A relative to the leading edge portion (23a). A first heat transfer piece is disposed on every other layer of the arrangement on both of a side closer to one tube (21) and a side closer to the other tube (21) of adjacent tubes among the plurality of tubes such that first heat transfer piece appears alternately on both sides.
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公开(公告)号：EP4365535A1
公开(公告)日：2024-05-08
申请号：EP22864582.6
申请日：2022-08-30
发明人： EGUCHI, Shunsaku , UEFUJI, Yoichi , ICHIKAWA, Gento , HIRASAWA, Masayoshi , SAITO, Katsuhiro , NAKAHARAI, Hiroyuki , TAKAHASHI, Yuta , KAMEI, Takafumi , KANEKO, Takeshi , TANIMOTO, Koichi
摘要： This heat exchanger comprises: a pair of plates that face each other; and an inner fin which is provided between the plates and in which a fluid circulates. The inner fin has a plurality of offset fins which are arranged side by side in the flowing direction of the fluid and are provided such that the positions thereof are mutually offset in the width direction orthogonal to the flowing direction. The offset fins include: plate joint parts which are joined to the plates and have steps formed in the flowing direction; fin parts provided along the opposing direction of the plates and connected to the plate joint parts; and reception slopes which are provided to the plate joint parts obliquely to the flowing direction and which receive the fluid from the steps.
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公开(公告)号：EP4353502A1
公开(公告)日：2024-04-17
申请号：EP22928832.9
申请日：2022-09-15
发明人： KOBAYASHI, Takayuki , UKAI, Tetsuzo , YAMAMOTO, Hiroyuki , SAITO, Katsuhiro , MORISHITA, Masatoshi , NOYAMA, Hideto
IPC分类号： B60H1/22
CPC分类号： B60H1/22
摘要： A vehicular refrigeration cycle unit is a vehicular refrigeration cycle unit installed between a vehicle exterior heat exchanger and a vehicle interior heat exchanger and exchanging heat between secondary refrigerants respectively flowing through the vehicle exterior heat exchanger and the vehicle interior heat exchanger, the vehicular refrigeration cycle unit including: a refrigeration cycle including a compressor, a condenser, an expansion valve, and an evaporator through which a primary refrigerant sequentially flows; an exterior flow passage through which the secondary refrigerant is circulated between the evaporator and the vehicle exterior heat exchanger; an interior flow passage through which the secondary refrigerant is circulated between the condenser and the vehicle interior heat exchanger; a pair of flow passage switching valves connecting the exterior flow passage and the interior flow passage to allow to switch the flow state of the second refrigerant between the exterior flow passage and the interior flow passage; a first bypass flow passage which is installed aside the exterior flow passage and with bypassing the evaporator; and a first flow rate adjustment unit adjusting a flow rate of the secondary refrigerant flowing into the evaporator.
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