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    • 8. 发明授权
    • Passive cooling system for fuel cell stack
    • 燃料电池堆被动冷却系统
    • US08034501B2
    • 2011-10-11
    • US11740492
    • 2007-04-26
    • Seung-jae LeeDo-young SeungTae-won Song
    • Seung-jae LeeDo-young SeungTae-won Song
    • H01M8/04
    • H01M8/04074H01M8/04029
    • A passive cooling system for a fuel cell stack is provided. The passive cooling system includes a plurality of cooling plates, each installed between every few unit cells, each having flow channels for flowing a primary coolant on at least one surface, and each comprising an inlet hole through which the primary coolant enters and an outlet hole through which the primary coolant that has passed the flow channels leaves; and a heat exchanger installed on a primary coolant flow line connected from the outlet holes to the inlet holes of the cooling plates to change a vapor state primary coolant to a liquid state primary coolant by cooling the primary coolant, wherein a path through which the primary coolant passes is a closed circuit, and the flow of the primary coolant is achieved by natural convection caused by vaporization of the primary coolant.
    • 提供了用于燃料电池堆的被动冷却系统。 被动冷却系统包括多个冷却板,每个冷却板安装在每隔几个单元之间,每个冷却板具有用于使至少一个表面上的主冷却剂流动的流动通道,并且每个冷却板包括一个主冷却剂进入的入口孔和一个出口孔 已经通过流动通道的主要冷却剂穿过该叶片离开; 以及热交换器,其安装在从所述出口孔连接到所述冷却板的入口孔的主冷却剂流动管线上,以通过冷却所述主冷却剂来将蒸气状态的一次冷却剂改变为液体状态的一次冷却剂, 冷却剂通道是闭合回路,并且主冷却剂的流动通过由一次冷却剂的汽化引起的自然对流来实现。
    • 9. 发明授权
    • Heat exchanger for fuel cell
    • 燃料电池换热器
    • US08003271B2
    • 2011-08-23
    • US11515029
    • 2006-09-05
    • Tae-won SongSeung-jae Lee
    • Tae-won SongSeung-jae Lee
    • H01M8/04
    • F28D15/0266F28D7/024F28D15/06F28D2021/0043F28F2265/14H01M8/04029
    • A heat exchanger that can mechanically automatically control a level of cooling water according to heat generation of the fuel cell. The heat exchanger includes a housing having a cooling water inlet and an outlet connected to a fuel cell stack, a moving plate which moves reciprocally in the housing and discharges cooling water filled in the housing to the stack when it moves in a one direction and when it receives a steam pressure from the stack it moves in an opposite direction, and an elastic member that applies a force to the moving plate in the one direction. The heat exchanger can automatically maintain the level of cooling water despite a difference in heat generated between a full and a partial load operation of the fuel cell obviating complicated electronics such as a thermo-sensor, a valve, or a controller. Also, under a partial load, the exposure of flow channels to superheated steam is avoided, thereby extending the lifetime of the fuel cell.
    • 一种热交换器,其能够根据燃料电池的发热机械地自动控制冷却水的水平。 所述热交换器包括壳体,所述壳体具有冷却水入口和连接到燃料电池堆的出口;移动板,其在所述壳体中往复运动,并且当其沿一个方向移动时将填充在所述壳体中的冷却水排出到所述堆叠 它从相对方向移动的烟囱接收蒸汽压力,以及向一个方向向移动板施加力的弹性部件。 尽管在燃料电池的全部和部分负载操作之间产生的热量差别,热交换器可以自动保持冷却水平,从而消除诸如热传感器,阀门或控制器的复杂电子设备。 此外,在部分负荷下,避免了流动通道暴露于过热蒸汽,从而延长了燃料电池的寿命。