A vehicle-mounted electronic device (100) provided with an electronic component (13) is provided with a latent heat storage material (22) that is in contact with the electronic component (13) directly or via a heat transfer member, and the phase transition temperature of the latent heat storage material (22) is between a temperature reached at night when the latent heat storage material is used and an operation upper limit temperature of the electronic component. In daytime, when the temperature of the in-vehicle electronic device (100) rises when the vehicle is irradiated with solar heat, and the temperature of the latent heat storage material (22) reaches the phase transition temperature, the thermal energy applied to the in-vehicle electronic device (100) is used as the energy for phase transition. As a result, it is possible to suppress the temperature of the electronic component (13) from being equal to or higher than the phase transition temperature. Since the phase transition temperature is lower than the operation upper limit temperature of the electronic component (13), the temperature of the electronic component (13) can be prevented from exceeding the operation upper limit temperature.

    具备电子部件(13)的车载用电子装置(100)具备直接或者经由传热部件与电子部件(13)接触的潜热蓄热材料(22),潜热蓄热材料(22)的相变温度处于在使用潜热蓄热材料的状况下在夜间达到的温度与电子部件的动作上限温度之间。若在白天,太阳热照射到车辆而车载用电子装置(100)的温度上升,潜热蓄热材料(22)的温度达到相变温度,则施加给车载用电子装置(100)的热能用作相变的能量。由此,能够抑制电子部件(13)的温度成为相变温度以上。由于相变温度是比电子部件(13)的动作上限温度低的温度,所以能够抑制电子部件(13)的温度超过动作上限温度。


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    Titel :

    Vehicle-mounted electronic device


    Weitere Titelangaben:

    车载用电子装置


    Beteiligte:
    KOIKE TORU (Autor:in) / MIKAMI SHIGENOBU (Autor:in)

    Erscheinungsdatum :

    2022-04-19


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / H01Q Antennen , ANTENNAS, i.e. RADIO AERIALS



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