INNER FIN AND HEAT EXCHANGER

• Main Authors: ONO SHINGO, SHIMAZU TOMOHIRO
• Format: Patent
• Language: English; Japanese
• Published: 09.07.2020
• Subjects: BASIC ELECTRIC ELEMENTS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS; PRINTED CIRCUITS; SEMICONDUCTOR DEVICES

To provide an inner fin capable of improving the cooling performance of a heat exchanger.SOLUTION: A fin main body 11 has an uneven shape in a sectional view perpendicular to the longitudinal direction of a flow channel tube 2, and forms a plurality of narrow channels 20 inside the flow channel tube 2. An offset portion 12 projects from the fin main body 11 in the width direction of the flow channel tube 2. An opening 13 is formed between the fin main body 11 and the offset portion 12, and connects one of the narrow channels 20 in the width direction of the flow channel tube 2 to the other narrow channel 20. A bent portion 14 is provided on at least one of side walls 11c and 12c of the fin main body 11 and the offset portion 12, and is bent in the width direction of the flow channel tube 2.SELECTED DRAWING: Figure 4 【課題】熱交換器の冷却性能を向上することが可能なインナーフィンを提供する。【解決手段】フィン本体部１１は、流路管２の長手方向に垂直な断面視が凹凸形状であり、流路管２の内側に複数の細流路２０を形成する。オフセット部１２は、流路管２の幅方向にフィン本体部１１から突出する。開口部１３は、フィン本体部１１とオフセット部１２との間に形成され、複数の細流路２０のうち流路管２の幅方向の一方の細流路２０と他方の細流路２０とを連通する。屈曲部１４は、フィン本体部１１およびオフセット部１２の少なくとも一方の側壁１１ｃ、１２ｃに設けられ、流路管２の幅方向に屈曲している。【選択図】図４