| 摘要 |
PROBLEM TO BE SOLVED: To provide a heat exchanger for air-conditioning easy to produce with uniform air circulation through each part of cores. SOLUTION: An external force is applied in the thickness direction of a core to plastically deform the core, each of flat tubes 3 is deformed into an inner face in parallel with the flat face of the flat tubes 3 with each of the flat tubes 3 kept flat. Thus, the whole cross section is bent C-shaped to form a bent core 6. The bent cores 6 are positioned in the outward direction of the radius of a cross flow fan 2 and each part of the inner rim surfaces of the bent cores 6 is positioned at a same distance with the outer peripheral surface of the cross flow fan 2. |
