HEAT EXCHANGER AND REFRIGERATOR USING HEAT EXCHANGER FOR CONDENSER OR EVAPORATOR

• Main Authors: TAKAGISHI HIROFUMI, KAI HIROSHI, TAKANO HIROTSUGU, MORI MOTOHIKO, OSHIRO ATSUNARI, SAKAI TADASHI
• Format: Patent
• Language: English; Japanese
• Published: 08.12.2014
• Subjects: BLASTING; COMBINED HEATING AND REFRIGERATION SYSTEMS; DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OFGENERAL APPLICATION; HEAT EXCHANGE IN GENERAL; HEAT PUMP SYSTEMS; HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS,IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT; HEATING; LIGHTING; LIQUEFACTION SOLIDIFICATION OF GASES; MANUFACTURE OR STORAGE OF ICE; MECHANICAL ENGINEERING; REFRIGERATION MACHINES, PLANTS OR SYSTEMS; REFRIGERATION OR COOLING; WEAPONS

PROBLEM TO BE SOLVED: To provide a heat exchanger capable of reducing risks of leakage of refrigerant from a refrigerant pipe and ensuring low cost, and a refrigerator using the heat exchanger for a condenser or an evaporator.SOLUTION: A heat exchanger 10 comprises: a refrigerant pipe 11 formed such that one pipe member having an outer protection coating layer formed outside by performing a cladding treatment on a core material made of an aluminum alloy with an aluminum alloy having a potential baser than that of the aluminum alloy of the core material is curved in a meander fashion so that straight pipe portions 12 and U-shaped curved pipe portions 13 are alternately continuous, and in which a plurality of straight pipe portions 12 are arranged equidistantly in parallel on a plurality of flat surfaces P (P1 to P3) arranged in parallel including one flat surface P1; and a plurality of radiation fins 20 each having a long hole 21 into which the curved pipe portion 13 arranged on one side of the refrigerant pipe 11 is inserted, and formed of aluminum plate materials provided at predetermined intervals along a longitudinal direction of the straight pipe portions 12 and arranged in parallel. The straight pipes 12 adjacent each other are engaged with longitudinal both ends of the long holes 21. 【課題】冷媒管から冷媒が漏出するおそれの少ない安価な熱交換器及び該熱交換器を凝縮器または蒸発器に用いた冷凍装置を提供する。【解決手段】熱交換器１０は、アルミニウム合金からなる芯材にこれより電位が卑となるアルミニウム合金でクラッド処理を施して外側に保護被膜層を形成した１本の管部材を、直管部１２とＵ字形の曲管部１３とを交互に連続するように蛇行状に曲げて、一つの平面Ｐ１上に複数の直管部１２を等間隔かつ互いに平行に配置するとともに、一つの平面Ｐ１を含む互いに平行な複数の平面Ｐ（Ｐ１〜Ｐ３）上に複数の直管部１２を等間隔かつ互いに平行に配置するように形成した冷媒管１１と、冷媒管１１の片側に配置された曲管部１３側から挿通される長孔２１を有して、直管部１２の長手方向に沿って所定間隔を設けて互いに平行に配置したアルミニウム製の板材よりなる複数の放熱フィン２０とを備え、互いに隣り合う直管部１２，１２を長孔２１の長手方向の両端部に係合させた。【選択図】図１