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    • 9. 发明授权
    • Heat exchanger and air conditioner using the same
    • 换热器和空调使用相同
    • US08037699B2
    • 2011-10-18
    • US12919069
    • 2009-04-17
    • Sangmu LeeAkira IshibashiTakuya Matsuda
    • Sangmu LeeAkira IshibashiTakuya Matsuda
    • F25B1/00
    • F25B39/00F28F1/32F28F1/40F28F1/42F28F1/422F28F21/084
    • When forming fins and heat transfer tubes by aluminum material, a pressure loss in the tube does not increase and a heat exchanger can be provided having heat transfer performance equal to or higher than a copper tube. The heat exchanger includes fins made of an aluminum material having a low deformation resistance and heat transfer tubes made of an aluminum material having a higher deformation resistance than the aluminum material forming the fins, and on whose internal surface the groove is provided to penetrate the fin to be fixed. It is also arranged that the tube axial direction (a) of the inner surface of the heat transfer tube and the direction (b) of the groove provided on the internal surface of the heat transfer tube are substantially parallel. In this case, the groove direction (b) forms an angle of 0 degrees to 2 degrees with respect to the tube axial direction (a) of the inner surface of the heat transfer tube. The depth of the groove of the heat transfer tube after tube expansion is 0.2 mm to 0.3 mm, and the top width of the ridge top portion is 0.08 mm to 0.18 mm. Further, the number of grooves of the heat transfer tube 20 is 40 to 60, and an apex angle α is 5 degrees to 20 degrees.
    • 当通过铝材形成翅片和传热管时,管中的压力损失不增加,并且可以提供具有等于或高于铜管的传热性能的热交换器。 热交换器包括由具有低变形阻力的铝材料制成的翅片和由铝材料制成的传热管,其具有比形成翅片的铝材料更高的变形阻力,并且在其内表面上设有凹槽以穿透翅片 要固定 还设置传热管的内表面的管轴方向(a)和设置在传热管的内表面上的槽的方向(b)基本上平行。 在这种情况下,槽方向(b)相对于传热管的内表面的管轴方向(a)形成0度-2度的角度。 管膨胀后的传热管的槽深度为0.2mm〜0.3mm,脊顶部的顶部宽度为0.08mm〜0.18mm。 此外,传热管20的槽数为40〜60,顶角α为5度〜20度。