| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a heat exchanger capable of preventing a resin structure from bursting due to freezing of water. <P>SOLUTION: A heat exchanger 1A includes a resin structure 2 forming a water flow path 3, and a refrigerant pipe 4. The water flow path 3 includes a plurality of U-shaped parts 31 constituted to become gradually small from an outer peripheral side to a center side of the resin structure 2, and connection parts 32 connecting ends of adjacent U-shaped parts 31 to each other so as to make the plurality of U-shaped parts 31 continuous. An end of an outermost U-shaped part 31 positioned on an outermost peripheral side among the plurality of U-shaped parts 31 connects to a water intake 3a, and an end of an innermost U-shaped part 31 positioned on an innermost side among the plurality of U-shaped parts 31 connects to a water outlet 3b. The innermost U-shaped part 31 is provided with pressure relieving means of absorbing a rise in pressure in the innermost U-shaped part 31. <P>COPYRIGHT: (C)2013,JPO&INPIT |
