The invention provides a heat exchanger and a vehicle-mounted air conditioning system. The heat exchanger comprises a pitting corrosion resistant flat tube and fins, wherein the outer surface of the pitting corrosion resistant flat tube is not provided with a zinc sprayed layer; and the fins are welded with the pitting corrosion resistant flat tube. As the zinc sprayed layer is not arranged on thesurface of the pitting corrosion resistant flat tube, when the fins and the pitting corrosion resistant flat tube are welded, zinc does not permeate into welding flux at the welding positions of thefins and the pitting corrosion resistant flat tube; and after the fins and the pitting corrosion resistant flat tube are welded, the potential of the welding positions of the fins and the pitting corrosion resistant flat tube is not lower than that of the fins, the welding flux at the welding positions cannot be corroded in advance, that is, the fins and the pitting corrosion resistant flat tube cannot fall off at the welding positions, so that the potential of the fins can be effectively guaranteed to be always lower than that of the pitting corrosion resistant flat tube which is protected against corrosion through potential corrosion, and thus, the pitting corrosion resistant flat tube is high in corrosion resistance, is not prone to have corrosion damage, is prolonged in the service life, and reduces the cost.

    本申请提供了一种换热器和车载空调系统,包括耐点蚀扁管和翅片,耐点蚀扁管的外表面未设置喷锌层。翅片与耐点蚀扁管焊接。由于耐点蚀扁管的表面未设置喷锌层,在焊接翅片与耐点蚀扁管时,在翅片与耐点蚀扁管的焊接位置不会有锌渗透到焊料中,翅片与耐点蚀扁管焊接完成后,翅片与耐点蚀扁管焊接位置的电位不会低于翅片的电位,焊接位置的焊料不会提前被腐蚀,也即翅片不会与耐点蚀扁管在焊接位置处脱落,从而能够有效保证翅片的电位始终低于耐点蚀扁管的电位,从而通过电位腐蚀来保护耐点蚀扁管的腐蚀,耐点蚀扁管的耐腐蚀性能强,不易被腐蚀损坏,延长了耐点蚀扁管的使用寿命,降低了成本。


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    Title :

    Heat exchanger and vehicle-mounted air conditioning system


    Additional title:

    换热器和车载空调系统


    Contributors:
    ZHOU LINSEN (author) / JING XIAOPING (author) / ZHENG YONG (author) / SUN CHUNMEI (author)

    Publication date :

    2021-01-05


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    F25B Kältemaschinen, Kälteanlagen oder Kälteverfahren , REFRIGERATION MACHINES, PLANTS, OR SYSTEMS / B60H ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES , Anordnung oder Einbau der Heizung, Kühlung, Lüftung oder anderer Luftbehandlungsvorrichtungen für die Fahrzeugräume für Reisende oder Fracht / F28F Einzelheiten von Wärmetauschern oder Wärmeübertragungsvorrichtungen für allgemeine Verwendung , DETAILS OF HEAT-EXCHANGE OR HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION



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