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    • 2. 发明公开
    • HEAT EXCHANGER FIN
    • 热交换器FIN
    • EP2106520A1
    • 2009-10-07
    • EP07853381.7
    • 2007-12-14
    • Proliance International, Inc.
    • KOLB, John, A.
    • F28F3/02F28F1/32
    • F28D1/05383B21D13/04F28F1/128F28F2215/02
    • A serpentine fin for assembly between tubes in a heat exchanger core, and a method of making same from a metal strip. The strip edges preferably have a hem comprising a double thickness of the strip material extending inward from the edge. The metal strip has folds extending across the strip width such that the strip forms a serpentine shape, with the folds being adapted to contact the tubes in the heat exchanger core. Multiple rows of split louvers are disposed between adjacent folds. Each row of split louvers comprises louvers having openings extending in the direction of the strip length and formed in a pair of adjacent, spaced louver banks. Ribs are disposed parallel to the louver openings adjacent the strip edges and in at least one center portion of the strip between the strip edges, and extend across the pair of louver banks. Preferably, the strip has ribs formed both in the center portion and along the edges. After forming the rows of split louvers, pressure is applied to the strip to cause the flat strip to buckle along unformed portions, extending across the strip width between rows of split louvers, thereby forming folds in the strip resulting in the serpentine fin.
    • 一种用于组装在热交换器芯体中的管之间的蛇形翅片,以及由金属条制造翅片的方法。 条带边缘优选地具有折边,该折边包括从边缘向内延伸的条带材料的双倍厚度。 金属带具有横跨带宽度延伸的折痕,使得带形成蛇形形状,折痕适于接触热交换器芯中的管。 多排分裂百叶窗布置在相邻的褶皱之间。 每排拼合式百叶窗包括百叶窗,百叶窗具有在条带长度方向上延伸的开口并形成在一对相邻的隔开的格栅组中。 肋布置成平行于邻近条边的百叶窗开口并且位于条边缘之间的条的至少一个中心部分上,并延伸穿过一对百叶窗组。 优选地,条带具有在中心部分和沿着边缘形成的肋条。 在形成拼合式百叶窗排之后,对条带施加压力以使扁平条带沿着未成形部分弯曲,延伸穿过成排拼合式百叶窗之间的条带宽度,由此在条带中形成褶皱,从而形成蛇形翅片。