HEAT COLLECTOR UTILIZING SOLAR HEAT

摘要

PURPOSE:To enable to effectively utilizing U-bend parts as some portion of a heat collecting part and consequently increase the amount of heat to absorb by a structure wherein the U-bend parts in a flow passage of a collector of the atmospheric heat and solar heat are thermally connected with the frames of the heat collector. CONSTITUTION:Each frame 21 of a heat collector 14 is opposite to each U-bend part 17b of a flow passage 17. Each connecting part 22 is provided integrally with the frame 21 consisting of protruded parts 22a protruding toward the U-bend part 17b and a recess 22b, in which the U-bend part 17b is housed. Because the U-bend parts 17b of the flow passage 17 are press-fitted to the recesses 22b of the respectively frames 21 so as to be thermally connected with the frames, the solar heat and atmospheric heat received by the frames 21 can be collected through the U-bend parts 17b.