JPH02133575U

JPH02133575U -

Info

Publication number: JPH02133575U
Application number: JP3997589U
Authority: JP
Priority date: 1989-04-06
Filing date: 1989-04-06
Publication date: 1990-11-06

Description

[Brief explanation of the drawing]

第１図は本考案の第１の実施例に係る熱交換器
用放熱フインを模式的に示す平面図、第２図は本
考案の第２の実施例に係る熱交換器用放熱フイン
を模式的に示す平面図、第３図は熱交換器の放熱
フインのルーバ幅比（Ｌｂ／Ｌａ）と局部熱伝達
比（Ｈａ／Ｈｂ）との関係を示す図、第４図は熱
交換器用放熱フインの熱交換率及び風損と、ルー
バ幅比（Ｌｂ／Ｌａ）との関係の説明に供する図
、第５図は従来例に係る熱交換器を示す斜視図、
第６図は従来のコルゲートフインの一例を示す斜
視図、第７図は第６図のコルゲートフインの一面
を模式的に示す平面図、第８図は従来の熱交換器
の放熱フインのフインの奥行き方向の距離と温度
差との関係を示す図である。図中１はコルゲートフインの一面、５は通風方
向を示す矢印、１２ａ及び１２ｂはルーバ、１３
は入口側、１４は出口側、２２ａ及び２２ｂはル
ーバ、２３は入口側、２４は出口側、５０は熱交
換器、５１は伝熱管、５３は入口ヘツダ、５４は
出口ヘツダー、６０はコルゲートフイン、６１は
波形板面、６２はルーバ、６３は通風方向を示す
矢印である。 FIG. 1 is a plan view schematically showing a radiating fin for a heat exchanger according to a first embodiment of the present invention, and FIG. 2 is a schematic plan view of a radiating fin for a heat exchanger according to a second embodiment of the present invention. 3 is a diagram showing the relationship between the louver width ratio (Lb/La) and the local heat transfer ratio (Ha/Hb) of the heat radiation fins of the heat exchanger, and FIG. 4 is a diagram showing the relationship between the louver width ratio (Lb/La) of the heat radiation fins of the heat exchanger FIG. 5 is a perspective view showing a conventional heat exchanger;
Fig. 6 is a perspective view showing an example of a conventional corrugated fin, Fig. 7 is a plan view schematically showing one side of the corrugated fin in Fig. 6, and Fig. 8 is a fin of a heat radiation fin of a conventional heat exchanger. FIG. 3 is a diagram showing the relationship between distance in the depth direction and temperature difference. In the figure, 1 is one side of the corrugated fin, 5 is an arrow indicating the ventilation direction, 12a and 12b are louvers, 13
14 is the inlet side, 22a and 22b are the louvers, 23 is the inlet side, 24 is the outlet side, 50 is the heat exchanger, 51 is the heat exchanger tube, 53 is the inlet header, 54 is the outlet header, 60 is the corrugated fin , 61 is a corrugated plate surface, 62 is a louver, and 63 is an arrow indicating the ventilation direction.

Claims

[Claims for Utility Model Registration] Corrugated fins for heat radiation provided around refrigerant passages of a heat exchanger having a plurality of refrigerant passages, the corrugated fins being arranged in parallel in the ventilation direction by cutting and raising. the plurality of louvers are arranged such that the louver width in the ventilation direction becomes narrower from the entrance side to the exit side of the ventilation passage of the corrugated fin. Heat dissipation fin for exchanger.