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    • 21. 发明专利
    • Tube for heat exchanger
    • 热交换器管
    • JP2012102948A
    • 2012-05-31
    • JP2010252807
    • 2010-11-11
    • Denso Corp株式会社デンソー
    • OHARA TAKAHIDEHAMADA HIROSHIYOSHIDA NORIOSAKAKIBARA TETSUYAMITSUKAWA KAZUHIROO TAKASHIGENTA HIROYUKISAITO MITSUKATSUNAKABO TADASHIMIYAZAKI NORIYUKIBABA NORIMASASHIMANUKI HIROYASU
    • F28F1/02B21D53/04F28D1/053F28F1/40
    • F28F3/086B21C37/14B21C37/151B23K1/0012F28D1/0391F28D1/05366F28D2021/0094F28F2275/04
    • PROBLEM TO BE SOLVED: To improve the brazability at a joint part, in a tube for heat exchangers.SOLUTION: A tubular member 20 that constitutes a tube for a heat exchanger comprises a pair of flat plate sections 21, 22 that are aligned in parallel so as to face one another in the minor-axis direction of the channel cross section, and a pair of curved sections 23, 24 that face one another in the major-axis direction of the channel cross section and connect the pair of flat plate sections 21, 22 to one another. One of the curved sections 23, 24 constitutes a joint part at which an outer wall portion 241, which extends from an end of the pair of flat plate sections 21, 22 and constitutes a part of the outer wall of the tubular member 20, and an inner wall portion 242, which extends from an end of the pair of flat plate sections 21, 22 and constitutes a part of the inner wall of the tubular member 20, overlap and are joined by brazing. Further, the inner wall portion 242 is joined in a manner such that the portion facing the outer wall portion 241 is closely adhered to the outer wall portion 241, and the leading end 244 facing the flat section 21 is spaced apart from the flat plate section 21.
    • 要解决的问题:为了提高热交换器用管中的接合部的钎焊性。 构成热交换器用管的管状部件20包括一对平行板部分21,22,它们在通道横截面的短轴方向上平行排列成彼此面对, 以及在通道横截面的长轴方向上彼此相对的一对弯曲部23,24,并且将一对平板部21,22彼此连接。 弯曲部分23,24中的一个构成接合部分,在该接合部分处,从一对平板部分21,22的端部延伸并构成管状部件20的外壁的一部分的外壁部分241, 从一对平板部21,22的端部延伸并构成管状部件20的内壁的一部分的内壁部242重叠并通过钎焊接合。 此外,内壁部242以与面对外壁部241的部分紧密贴合到外壁部241的方式接合,并且面向平坦部21的前端244与平板部分隔开 21.版权所有(C)2012,JPO&INPIT