The invention provides a liquid cooling heat dissipation device of a power device and a vehicle-mounted charger, the liquid cooling heat dissipation device comprises a circuit board, the power device and a heat dissipation assembly which are stacked in sequence, one side of the power device is connected with the circuit board through pins on the power device, and the other side of the power device is installed on the heat dissipation surface of the heat dissipation assembly; the power device is directly installed on the heat dissipation surface of the heat dissipation assembly, compared with the prior art, middle heat transfer layers such as an aluminum substrate and the like are reduced, contact thermal resistance is reduced, and therefore heat dissipation performance is improved, meanwhile, the aluminum substrate is not used, extra pressing strips do not need to be used for pressing the aluminum substrate, the installation complexity is reduced, and the heat dissipation efficiency is improved. And the installation space required by the power device can be reduced.

    本发明提供了一种功率器件的液冷散热装置及车载充电机,其中液冷散热装置包括依次层叠设置的电路板、功率器件以及散热组件,功率器件一侧通过其上的引脚与电路板连接,功率器件另一侧安装在散热组件的散热面上;本发明采用将功率器件直接安装在散热组件的散热面上,与现有技术相比,本发明减少了铝基板等中间传热层级,降低接触热阻,从而提高散热性能,同时由于不使用铝基板,而无需使用额外的压条压紧铝基板,不仅降低了安装的复杂程度,还能减少功率器件所需的安装空间。


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    Title :

    Liquid cooling heat dissipation device of power device and vehicle-mounted charger


    Additional title:

    功率器件的液冷散热装置及车载充电机


    Contributors:
    LIU JUN (author) / LIU GUILI (author) / XU JINZHU (author) / HU CHAO (author)

    Publication date :

    2024-06-14


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    H05K PRINTED CIRCUITS , Gedruckte Schaltungen / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen



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