| 摘要 |
PROBLEM TO BE SOLVED: To provide a heat exchanger advantageous in cost which achieves a curtailing of the number of components and working man-hours without using separate parts for mutually fixing heat exchangers arranged in two rows. SOLUTION: This heat exchanger 7 comprise a number of fins 8 which are laminated parallel at a specified interval having a plurality of through holes, a second side plate 9 and a first side plate 10 having a plurality of insertion holes sandwiching both sides of the laminated fins 8, a plurality of hair pin shaped heat exchanger tubes 11 to be inserted through the through holes and the insertion holes and a link tube 12 to link open ends of the heat exchanger tubes 11 sequentially and is erected in heat exchange chambers arranged in two rows. The length in the direction of bending of the heat exchanger 7 is made larger in an external heat exchanger than in an internal heat exchanger 7b, each one side of the external and internal heat exchangers is linked to each other by one first side plate 10 and the second side plate 9 is mounted on the other side of the external heat exchanger 7a. An L-shaped retaining piece 13 protruding out inward from the side in the longitudinal direction of the second side plate 9 is formed integrally. |
