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公开(公告)号：US20170326947A1
公开(公告)日：2017-11-16
申请号：US15531663
申请日：2015-12-08
Applicant: DENSO CORPORATION
Inventor： Kota SAKAMOTO , Shin NISHIDA , Michio NISHIKAWA
CPC classification number: B60H1/00921 , B60H1/00342 , B60H1/12 , B60H2001/00957 , F25B6/04 , F25B40/00 , F28D7/106 , F28D9/00 , F28D2021/0068 , F28F2210/06 , Y02T10/88
Abstract: A refrigeration cycle device has a compressor, a radiator, an auxiliary heat exchanger, a decompressor, an evaporator, and an interior heat exchanger. The auxiliary heat exchanger performs a heat exchange between refrigerant and air and causes the refrigerant to radiate heat. The evaporator performs a heat exchange between air and refrigerant after being decompressed in the decompressor before the air is heated in the auxiliary heat exchanger. The interior heat exchanger has a first heat exchanging portion and a second heat exchanging portion and performs a heat exchange between refrigerant flowing in the first heat exchanging portion and refrigerant flowing in the second heat exchanging portion. The first heat exchanging portion is disposed in a refrigerant path between the radiator and the decompressor and is connected to the auxiliary heat exchanger in series. The second heat exchanging portion is disposed in a refrigerant path between the evaporator and the compressor.
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公开(公告)号：US20160297283A1
公开(公告)日：2016-10-13
申请号：US15038484
申请日：2014-10-30
Applicant: DENSO CORPORATION
Inventor： Kota SAKAMOTO , Satoshi ITOH
Abstract: A heater core for exchanging heat between a coolant and ventilation air to be blown into a vehicle interior is disposed in a high-pressure side heat-medium circulation circuit that allows for circulation of the coolant heated by a heat pump cycle. A radiator for exchanging heat between at least a part of the coolant flowing out of the heater core and a low-pressure refrigerant in the heat pump cycle is disposed in a low-pressure side heat-medium circulation circuit coupled to the high-pressure side heat-medium circulation circuit. Thus, excessive heat included in the coolant flowing out of the heater core and which is not used to heat the ventilation air can suppress frost formation on an exterior heat exchanger and can also defrost the exterior heat exchanger.
Abstract translation: 用于在冷却剂和被吹送到车辆内部的通风空气之间进行热交换的加热器芯设置在允许通过热泵循环加热的冷却剂的循环的高压侧热介质循环回路中。 在从加热器芯流出的至少一部分冷却剂与热泵循环中的低压制冷剂之间进行热交换的散热器设置在与高压侧连接的低压侧热介质循环回路中 热介质循环回路。 因此，流出加热器芯的冷却剂中所含的过多的热量不能用于加热通风空气，可以抑制外部热交换器的结霜，并且还可以对外部热交换器进行除霜。
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公开(公告)号：US20180319244A1
公开(公告)日：2018-11-08
申请号：US15772267
申请日：2016-10-28
Applicant: DENSO CORPORATION
Inventor： Atsushi YAMADA , Shin NISHIDA , Kota SAKAMOTO
CPC classification number: B60H1/005 , B60H1/00321 , B60H1/00778 , B60H1/00807 , B60H1/00878 , B60H1/00964 , B60H1/04 , B60H1/3208 , B60H1/3211 , B60H1/322 , B60H1/323 , B60H2001/00957 , B60H2001/3255 , B60H2001/327 , B60H2001/3288 , B60H2001/3291 , Y02E60/145
Abstract: A vehicle air conditioner includes a refrigeration cycle unit, a heater core, a cool air bypass passage, an air volume ratio regulator, and an auxiliary heat exchanger. The heater core is disposed in a heating passage located downstream of an evaporator with respect to an airflow. The auxiliary heat exchanger is provided in the refrigeration cycle unit. The evaporator includes a cold energy storage configured to store cold energy. The cold energy storage stores cold energy when the compressor is in operation, and dissipate cold energy while the compressor stops. The auxiliary heat exchanger is located downstream of the evaporator and upstream of the heater core with respect to the airflow. The auxiliary heat exchanger is configured to change enthalpy of refrigerant by heat exchange between the refrigerant and air having been cooled by the evaporator and to be heated by the heater core.
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公开(公告)号：US20170297407A1
公开(公告)日：2017-10-19
申请号：US15467624
申请日：2017-03-23
Applicant: DENSO International America, Inc. , DENSO CORPORATION
Inventor： Zhiwei SHAN , Kota SAKAMOTO
CPC classification number: B60H1/00278 , B60H1/00385 , B60H1/3205 , B60H2001/00307 , B60H2001/3285
Abstract: A system for cooling a battery. The system has a cabin cooling refrigerant pathway including an orifice tube through which refrigerant flows to an evaporator. A battery cooling refrigerant pathway includes a thermal expansion valve (TXV) through which refrigerant flows to a chiller. An accumulator is in receipt of refrigerant from both the cabin cooling refrigerant pathway and the battery cooling refrigerant pathway. A battery coolant loop includes a coolant pathway for directing coolant from the chiller to the battery to cool the battery. The coolant is cooled by the chiller.
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