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    Heat pump system for vehicle
    1.
    发明授权
    Heat pump system for vehicle 有权

    公开(公告)号：US11034207B2

    公开(公告)日：2021-06-15

    申请号：US14907928

    申请日：2015-03-19

    Applicant: HANON SYSTEMS

    Inventor： Young Ho Choi ,  Sung Ho Kang ,  Hak Kyu Kim ,  Seung Ho Lee ,  Jae Min Lee ,  Jung Jae Lee

    IPC: B60H1/00 ,  F25B5/02 ,  F25B5/04 ,  F25B25/00

    Abstract: A heat pump system including a compressor mounted on a refrigerant circulation line for compressing and discharging refrigerant. An internal heat exchanger is mounted inside an air-conditioning case. An evaporator is mounted inside the air-conditioning case. An external heat exchanger is mounted outside the air-conditioning case. A first expansion means is mounted on the refrigerant circulation line between the internal heat exchanger and the external heat exchanger to selectively expand refrigerant discharged from the internal heat exchanger. A second expansion means is mounted on the refrigerant circulation line of an inlet side of the evaporator to expand the refrigerant supplied to the evaporator. A coolant circulation line is configured to circulate coolant toward electronic units of the vehicle. A refrigerant-coolant heat exchanger is configured to exchange heat between the refrigerant flowing the refrigerant circulation line and the coolant circulating through the coolant circulation line.

    Vehicular heat management system
    3.
    发明授权
    Vehicular heat management system 有权

    公开(公告)号：US10946721B2

    公开(公告)日：2021-03-16

    申请号：US16536959

    申请日：2019-08-09

    Applicant: Hanon Systems

    Inventor： Jae Min Lee ,  Young Chul Kim ,  In Hyeok Kim ,  Seo Jun Yoon ,  Kyeong Cheol Lee ,  Seung Ho Lee ,  Sung Ho Kang ,  Jung Jae Lee

    IPC: B60H1/00 ,  B60H1/03 ,  B60H1/06 ,  B60H1/14

    Abstract: Vehicular heat management system includes a refrigerant circulation line including a compressor, a high pressure side indoor heat exchanger, a heat pump mode expansion valve, an outdoor heat exchanger, an air conditioning mode expansion valve, low pressure side indoor heat exchanger and a refrigerant-cooling water heat exchanger; an air conditioning mode branch line branched from the refrigerant circulation line and configured to, in an air conditioning mode, form a cooling loop by circulating a refrigerant through the compressor, the high pressure side indoor heat exchanger, the outdoor heat exchanger, the air conditioning mode expansion valve and low pressure side indoor heat exchanger. Heat pump mode branch line branched from the refrigerant circulation line is configured, in heat pump mode to form a heating loop by circulating the refrigerant through the compressor, the high pressure side indoor heat exchanger, the heat pump mode expansion valve and the refrigerant-cooling water heat exchanger.

    Vehicular heat pump system
    4.
    发明授权
    Vehicular heat pump system 有权

    公开(公告)号：US10752092B2

    公开(公告)日：2020-08-25

    申请号：US15558210

    申请日：2016-03-15

    Applicant: HANON SYSTEMS

    Inventor： Young Ho Choi ,  Chan Joo Maeng ,  Seung Ho Lee ,  Jung Jae Lee ,  Hak Kyu Kim ,  Sung Ho Kang ,  Jae Min Lee

    IPC: B60H1/32 ,  B60H1/00 ,  B60H1/22 ,  B60H1/14 ,  F25B40/00 ,  F25B41/04 ,  F25B5/04 ,  F25B47/02

    Abstract: The present invention relates to a vehicular heat pump system and, more specifically, to a vehicular heat pump system having a chiller for heat exchanging cooling water circulating through vehicle electrical equipment (200), a refrigerant discharged from an outdoor heat exchanger so as to flow through a first bypass line (R1), and a refrigerant discharged from an indoor heat exchanger, thereby: in the air conditioner mode, increasing sub-cool while the refrigerant discharged from the indoor heat exchanger is first cooled at the chiller and then is second cooled at the outdoor heat exchanger such that the flow rate of refrigerants increases and cooling performance is improved; in the heat pump mode, allowing the refrigerant discharged from the indoor heat exchanger to ensure sub-cool in the chiller so as to increase the flow rate of refrigerants, and allowing the refrigerant discharged from the outdoor heat exchanger to receive an additional heating source from the chiller so as to improve heating performance; and, even in the defrost mode carried out because of frost on the outdoor heat exchanger, ensuring an additional heating source in the chiller so as to minimize a change in indoor discharge temperature because of a lack of heating sources.

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