HEAT EXCHANGER AND AIR CONDITIONING DEVICE INCLUDING HEAT EXCHANGER

• Main Authors: SATO KANA, HAYAKAWA MITSUSADA
• Format: Patent
• Language: English; Japanese
• Published: 23.04.2015
• Subjects: BLASTING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OFGENERAL APPLICATION; HEAT EXCHANGE IN GENERAL; HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS,IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT; HEATING; LIGHTING; MACHINE TOOLS; MECHANICAL ENGINEERING; METAL-WORKING NOT OTHERWISE PROVIDED FOR; PERFORMING OPERATIONS; SOLDERING OR UNSOLDERING; TRANSPORTING; WEAPONS; WELDING; WORKING BY LASER BEAM

PROBLEM TO BE SOLVED: To provide a heat exchanger in which aluminum heat transfer pipes and refrigerant pipes can be simply connected and that has excellent corrosion resistance.SOLUTION: A heat exchanger comprises: fins 12 stacked at regular intervals; and heat transfer pipes 14 and 15 that penetrate through the respective stacked fins 12 and are fixed and in which aluminum refrigerant pipes 19 are connected to both end parts 14a and 14b. The heat transfer pipes 14 and 15 and the refrigerant pipes 19 are connected by a low melting point brazing material 17 mixed with noncorrosive flux, and surfaces of the low melting point brazing material 17 in contact with air are covered by coating members 18. 【課題】アルミニウム製の伝熱管および冷媒配管を簡易的に接合することが可能で、かつ耐腐食性に優れた熱交換器を提供する。【解決手段】一定の間隔で積層されたフィン１２と、積層された各フィン１２を貫通して固定され、両端部１４ａ、１４ｂにアルミニウム製の冷媒配管１９が接合されるアルミニウム製の伝熱管１４、１５とを備え、伝熱管１４、１５と冷媒配管１９とを、非腐食性フラックスが混合された低融点ろう材１７で接合し、低融点ろう材１７の大気と接触する表面を被膜部材１８で覆っている。【選択図】図２