HEAT EXCHANGER

• Main Authors: TSUBOE HIROAKI, OOKI NAGATOSHI, ENDO MICHIKO, SUZUKI NATSUKO
• Format: Patent
• Language: English; Japanese
• Published: 12.03.2015
• Subjects: BLASTING; 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; MECHANICAL ENGINEERING; WEAPONS

PROBLEM TO BE SOLVED: To provide a heat exchanger capable of lengthening heating operation time by lengthening one defrosting cycle period by delaying blocking between fins, while suppressing deterioration of heat transfer performance.SOLUTION: A heat exchanger includes: a plurality of fins (33, 34) laminated with a gap for air to pass; and heat transfer pipes (10) which are orthogonal to these fins (33, 34) and in which a working fluid (refrigerant) passes. The fins (33, 34) are arranged in a direction in which a lamination surface on the side which becomes an air introduction part of the gap is orthogonal to an air flow direction (13), and a plurality of stages of heat transfer pipe through holes (11) for passing the heat transfer pipes (10) are provided with the longitudinal direction of the fins (33, 34) being a stage direction. The fins (33, 34) have air passage holes (12). The air passage holes (12) are provided in the positions which do not correspond to the fins (33, 34) adjacent in the lamination direction, and they are provided on the further upstream side of the air flow direction (13) than the heat transfer pipe through holes (11). 【課題】熱伝達性能の低下を抑制しつつ、フィン間閉塞を遅らせて１除霜サイクル期間を長くして暖房運転時間を長くできる熱交換器を提供する。【解決手段】空気が通過する隙間を置いて複数積層されたフィン（３３、３４）と、これらフィン（３３、３４）と直交し、内部を作動流体（冷媒）が通過する伝熱管（１０）とを備え、フィン（３３、３４）は、隙間の空気導入部となる側の積層面が空気流れ方向（１３）に直交する向きに配置されるとともに、伝熱管（１０）を通すための伝熱管通し穴（１１）がフィン（３３、３４）の長手方向を段方向として複数段設けられた熱交換器において、フィン（３３、３４）は、空気を通す穴（１２）が設けられ、該空気を通す穴（１２）は、積層方向に隣り合うフィン（３３、３４）で対応しない位置に設けられ、かつ伝熱管通し穴（１１）よりも空気流れ方向（１３）の上流側に設けられる。【選択図】 図１