发明申请
- 专利标题: Flat tube for heat exchanger
- 专利标题(中): 换热器平管
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申请号: US10565913申请日: 2004-07-02
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公开(公告)号: US20060180299A1公开(公告)日: 2006-08-17
- 发明人: Takazi Igami
- 申请人: Takazi Igami
- 申请人地址: JP Shibuya-ku 151-0053
- 专利权人: T. Tad Co., Ltd.
- 当前专利权人: T. Tad Co., Ltd.
- 当前专利权人地址: JP Shibuya-ku 151-0053
- 优先权: JP2003-280425 20030725
- 国际申请: PCT/JP04/09794 WO 20040702
- 主分类号: F28F1/40
- IPC分类号: F28F1/40
摘要:
A flat tube having a nearly B-like shape or the like in cross section, which has one or more partitions therein, and is coated with a brazing metal on the outer surface thereof, is provided. In the top portion of the turned-up portion constituting the partition, there are formed many slits, in order to provide the conditions that satisfy both of the brazing performance and an increase of working accuracy of the flat tube, which slits allow the brazing metal to enter up to the top portion of the turned-up portion, wherein the length “c” of the slit is 2 mm to 15 mm; the distance “e” between the edges of the neighboring slits is 3 mm to 10 mm; and “e/c” is 0.6 or more.