JPH0645183Y2 - Heat exchanger fins - Google Patents
Heat exchanger finsInfo
- Publication number
- JPH0645183Y2 JPH0645183Y2 JP1988077782U JP7778288U JPH0645183Y2 JP H0645183 Y2 JPH0645183 Y2 JP H0645183Y2 JP 1988077782 U JP1988077782 U JP 1988077782U JP 7778288 U JP7778288 U JP 7778288U JP H0645183 Y2 JPH0645183 Y2 JP H0645183Y2
- Authority
- JP
- Japan
- Prior art keywords
- bending
- bent
- edge
- heat exchanger
- fin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Description
【考案の詳細な説明】 （産業上の利用分野） この考案に係る熱交換器用フィンは、ラジエータやヒー
タコア等として使用される熱交換器に組み込み、空気と
水等の流体との熱交換が効率良く行なわれる様にするも
のである。DETAILED DESCRIPTION OF THE INVENTION (Industrial application field) The heat exchanger fin according to the present invention is incorporated into a heat exchanger used as a radiator, a heater core, or the like to efficiently exchange heat between air and a fluid such as water. It should be done well.
（従来の技術） 自動車用エンジンの冷却水の放熱を行なったり、或は上
記冷却水を利用して自動車室内の暖房を行なう為、第５
図に示す様な熱交換器が広く使用されている。(Prior Art) In order to radiate the cooling water of the automobile engine or to heat the inside of the automobile by using the cooling water,
The heat exchanger as shown in the figure is widely used.
この熱交換器は、多数のフィン１、１と伝熱管２、２と
から成るコア部３の両端部にタンク４、５を設けたもの
で、放熱すべき冷却水等を一方のタンク４から他方のタ
ンク５に向けて、多数の伝熱管２、２内を流す事で、伝
熱管２、２内の冷却水等とコア部３を通過する空気との
間で熱交換を行なわせる。In this heat exchanger, tanks 4 and 5 are provided at both ends of a core portion 3 composed of a large number of fins 1 and 1 and heat transfer tubes 2 and 2. By flowing a large number of heat transfer tubes 2 and 2 toward the other tank 5, heat exchange is performed between the cooling water and the like in the heat transfer tubes 2 and 2 and the air passing through the core portion 3.
コア部３を構成するフィン１、１には、実開昭55−7318
4号公報等に開示されている様に、第６〜７図に示す様
な曲げ起こし片６、６を形成して、各フィン１、１と空
気との熱交換交換を向上させる事が行なわれている。For the fins 1 and 1 that compose the core portion 3, there is an actual exploitation 55-7318
As disclosed in Japanese Unexamined Patent Publication No. 4 etc., bending and raising pieces 6 and 6 as shown in FIGS. 6 to 7 are formed to improve heat exchange between the fins 1 and 1 and air. Has been.
即ち、第６〜７図に示す様な曲げ起こし片６、６を形成
したフィン１に、同図の左方向から空気を送り込んだ場
合、この空気は各曲げ起こし片６、６により流れを乱さ
れて、第７図に示す様に、各曲げ起こし片６の下流側で
渦を巻き、フィン１の表面に形成される伝熱性不良の境
界層を破壊して、空気とフィン１との熱交換が効率良く
行なわれる様にする。That is, when air is sent from the left direction in FIG. 6 to the fin 1 in which the bending and raising pieces 6 and 6 are formed as shown in FIGS. 6 to 7, the air is disturbed by the bending and raising pieces 6 and 6. Then, as shown in FIG. 7, a vortex is swirled on the downstream side of each bending and bending piece 6 to destroy the boundary layer having poor heat transfer property formed on the surface of the fin 1 and heat the air and the fin 1 to each other. Make sure that the replacement is done efficiently.
（考案が解決しようとする課題） ところが、上述の様な曲げ起こし片６、６を形成した従
来のフィン１の場合、次に述べる様な不都合を生じた。(Problems to be solved by the invention) However, in the case of the conventional fin 1 in which the bending and raising pieces 6 and 6 are formed as described above, the following inconveniences occur.
即ち、従来の曲げ起こし片６、６の場合、折り曲げ縁と
なる直線αが、第７図に示す様に、空気の流れ方向に対
して直角で、しかも曲げ起こし片６の端縁が風上側に向
いていた為、同図に示す様に、曲げ起こし片６の両側に
ほぼ同じ大きさの渦が形成され、両側の渦同士が互いに
干渉し合って、渦による境界層の破壊が必ずしも効率良
く行なわれなくなる。That is, in the case of the conventional bending and bending pieces 6 and 6, the straight line α which is the bending edge is perpendicular to the air flow direction as shown in FIG. 7, and the edge of the bending and bending piece 6 is on the windward side. As shown in the figure, vortices of almost the same size are formed on both sides of the bending and bending piece 6, and the vortices on both sides interfere with each other, and the destruction of the boundary layer by the vortices is not always efficient. It will not be done well.
本考案の熱交換器用フィンは、渦同士の干渉が起こり難
くする事で、上述の様な不都合を解消するものである。The heat exchanger fin of the present invention eliminates the inconveniences described above by making it difficult for interference between vortices to occur.
（問題を解決する為の手段） 本考案の熱交換器用フィンは、金属薄板の複数箇所に形
成された鉤形の切目の内側を、切目の端部同士を結ぶ直
線を折り曲げ縁とし、金属薄板の本体部分に対して105
〜165度折り曲げる事で、上記本体部分に対して15〜75
度傾斜した曲げ起こし片を形成し、この曲げ起こし片の
端縁を風下側に対向させると共に、上記折り曲げ縁とな
る直線を、空気の流れ方向に対して15〜45度傾斜させて
いる。(Means for Solving the Problem) The fin for heat exchanger of the present invention is a metal thin plate in which the inside of a hook-shaped cut formed at a plurality of positions of a thin metal plate is a straight line connecting the ends of the cut with a bending edge. 105 for the body of
By bending it up to 165 degrees,
A bent and bent piece is formed with a degree of inclination, the end edge of this bent and bent piece is made to face the leeward side, and the straight line serving as the bent edge is inclined by 15 to 45 degrees with respect to the air flow direction.
（作用） 上述の様に構成される本考案の熱交換器用フィンの場
合、曲げ起こし片の折り曲げ縁が空気の流れ方向に対し
て傾斜しており、しかも曲げ起こし片の端縁が風下側に
向いている為、空気は曲げ起こし片の風下側で渦を発生
し、上記折り曲げ縁に沿って流れる。(Operation) In the case of the heat exchanger fin of the present invention configured as described above, the bending edge of the bending and raising piece is inclined with respect to the air flow direction, and the edge of the bending and raising piece is on the leeward side. Since it is facing, the air generates a vortex on the leeward side of the bending and raising piece, and flows along the folding edge.
従って、空気の渦は曲げ起こし片の片側にのみ発生し、
従来の様に、両側で発生した渦同士が干渉し合う事も無
く、フィン表面の境界層の破壊が効率良く行なわれる。Therefore, the vortex of air is generated only on one side of the bending and raising piece,
Unlike the conventional case, vortices generated on both sides do not interfere with each other, and the boundary layer on the fin surface is efficiently destroyed.
（実施例） 次に、図示の実施例を説明しつつ、本考案を更に詳しく
説明する。(Embodiment) Next, the present invention will be described in more detail with reference to the illustrated embodiment.
第１〜２図は本考案の実施例を示しており、第１図はフ
ィンの一部を拡大して示す平面図、第２図は第１図のＡ
−Ａ断面図である。1 and 2 show an embodiment of the present invention. FIG. 1 is an enlarged plan view showing a part of a fin, and FIG. 2 is an A of FIG.
FIG.
本考案の熱交換器用フィンは、アルミニウム、或は真鍮
等の金属薄板の複数箇所にＬ字形の切目を形成し、各切
目の内側を、切目の端部同士を結ぶ直線を折り曲げ縁７
として、金属薄板の本体部分８に対して、105〜165度
（更に好ましくは120〜150度）の範囲で定められる角度
θ１だけ折り曲げる事で、上記本体部分８に対して、15
〜75度（更に好ましくは30〜60度）の範囲で定められる
角度θ２（＝180度〜θ１）だけ傾斜した曲げ起こし片
６を形成している。In the fin for heat exchanger of the present invention, L-shaped cuts are formed at a plurality of locations on a thin metal plate such as aluminum or brass, and a straight line connecting the ends of the cuts is bent at the inside of each cut 7
Is bent by an angle θ 1 defined in the range of 105 to 165 degrees (more preferably 120 to 150 degrees) with respect to the body portion 8 of the thin metal plate, and
The bent and bent piece 6 is formed by inclining at an angle θ 2 (= 180 ° to θ 1 ) defined in the range of up to 75 ° (more preferably 30 to 60 °).
上記折り曲げ縁７は曲げ起こし片６の風上側に位置し、
従ってこの曲げ起こし片６の端縁は、風下側（第１図の
下側）に対向している。The bending edge 7 is located on the windward side of the bending and raising piece 6,
Therefore, the edge of the bent and bent piece 6 faces the leeward side (lower side in FIG. 1).
又、上記折り曲げ縁７となる直線は、空気の流れ方向に
対し、15〜45度の範囲で定められ角度θ３だけ傾斜させ
ている。Further, the straight line serving as the bent edge 7 is set in the range of 15 to 45 degrees with respect to the air flow direction and is inclined by an angle θ 3 .
本考案の熱交換器用フィンは、上述の様な形状を有する
曲げ起こし片６を多数形成する事で構成されるが、この
様な熱交換器用フィンの場合、各曲げ起こし片６の折り
曲げ縁７が空気の流れ方向に対して角度θ３だけ傾斜し
ており、しかも各曲げ起こし片６の端縁が風下側に向い
ている為、各曲げ起こし片６に吹き付けた空気は、第２
図に矢印ａで示す様に、各曲げ起こし片６の風下側で渦
を巻き、この渦は、第１図に矢印ｂで示す様に、上記折
り曲げ縁７に沿って風下側に流れる。The heat exchanger fin of the present invention is constructed by forming a large number of bent and bent pieces 6 having the above-described shape. In the case of such a heat exchanger fin, the bent edge 7 of each bent and bent piece 6 is formed. Is inclined by an angle θ 3 with respect to the flow direction of the air, and the edge of each bent and bent piece 6 faces the leeward side, the air blown to each bent and bent piece 6 is
As shown by the arrow a in the figure, a vortex is swirled on the leeward side of each bending and bending piece 6, and this vortex flows along the fold edge 7 to the leeward side as shown by the arrow b in FIG.
従って、空気の渦は各曲げ起こし片６の片側にのみ発生
し、従来の様に、両側で発生した渦同士が干渉し合う事
も無く、フィン表面の境界層の破壊が効率良く行なわれ
る。Therefore, air vortices are generated only on one side of each bent and bent piece 6, and the vortices generated on both sides do not interfere with each other as in the conventional case, and the boundary layer on the fin surface is efficiently destroyed.
尚、フィンの本体部分８に多数形成する曲げ起こし片６
の配置を次の様に定めれば、各曲げ起こし片６で発生す
る渦同士の干渉をより確実に防止して、フィンを組み込
んだ熱交換器の性能を向上させる事が出来る。In addition, the bending and raising pieces 6 that are formed in large numbers in the body portion 8 of the fin
If the arrangement is defined as follows, it is possible to more reliably prevent the interference between the vortices generated in each bending and bending piece 6 and improve the performance of the heat exchanger incorporating the fins.
先ず、多数の曲げ起こし片６、６を、第３図に示す様
に、方形に配列した場合、各曲げ起こし片６、６の折り
曲げ縁７の長さをｌとすると、空気の流れ方向（第３図
の上下方向）に亘る曲げ起こし片６、６のピッチp1を、
上記折り曲げ縁７の長さｌの1.5〜３倍（p1＝（1.5〜
３）ｌ）とし、空気の流れと直角方向のピッチp2を、折
り曲げ縁７の長さｌの１〜1.5倍（p2＝（１〜1.5）ｌ）
とする。First, when a large number of bending and bending pieces 6, 6 are arranged in a rectangular shape as shown in FIG. 3, assuming that the length of the bending edge 7 of each bending and bending piece 6, 6 is l, the air flow direction ( The pitch p 1 of the bending and raising pieces 6 and 6 over the vertical direction of FIG.
1.5 to 3 times the length l of the bent edge 7 (p 1 = (1.5 to
3) l), and the pitch p 2 in the direction perpendicular to the air flow is 1 to 1.5 times the length 1 of the bent edge 7 (p 2 = (1 to 1.5) l)
And
又、多数の曲げ起こし片６、６を、第４図に示す様に、
千鳥配列しても良い。Also, as shown in FIG. 4, a large number of bending and bending pieces 6, 6 are
You may arrange in a staggered arrangement.
（考案の効果） 本考案の熱交換器用フィンは、以上に述べた通り構成さ
れ作用する為、フィンの表面に形成される伝熱性不良の
境界層の破壊を効率良く行なう事が出来、フィンを組み
込んだ熱交換器の性能向上を図る事が出来る。(Effect of the Invention) Since the fin for heat exchanger of the present invention is constructed and operates as described above, it is possible to efficiently destroy the boundary layer having poor heat transfer property formed on the surface of the fin, and The performance of the built-in heat exchanger can be improved.
第１〜２図は本考案の実施例を示しており、第１図はフ
ィンの一部を拡大して示す平面図、第２図は第１図のＡ
−Ａ断面図、第３〜４図は、本考案のフィンに形成する
曲げ起こし片の配列状態の２例を示す、それぞれ部分平
面図、第５図は本考案の対象となるフィンを組み込んだ
熱交換器の１例を示す正面図、第６図は従来のフィンに
形成された曲げ起こし片を示す断面図、第７図は同平面
図である。 1:フィン、2:伝熱管、3:コア部、４、5:タンク、6:曲げ
起こし片、7:折り曲げ縁、8:本体部分。1 and 2 show an embodiment of the present invention. FIG. 1 is an enlarged plan view showing a part of a fin, and FIG. 2 is an A of FIG.
-A sectional view, FIGS. 3 to 4 show two examples of arrangement of bent and bent pieces formed on the fin of the present invention. Partial plan views and FIG. 5 respectively incorporate the fins of the present invention. FIG. 6 is a front view showing an example of a heat exchanger, FIG. 6 is a cross-sectional view showing a bent and bent piece formed on a conventional fin, and FIG. 7 is a plan view of the same. 1: Fin, 2: Heat transfer tube, 3: Core part, 4, 5: Tank, 6: Bending and raising piece, 7: Bending edge, 8: Body part.
Claims (1)
目の内側を、切目の端部同士を結ぶ直線を折り曲げ縁と
し、金属薄板の本体部分に対して105〜165度折り曲げる
事で、上記本体部分に対して15〜75度傾斜した曲げ起こ
し片を形成し、この曲げ起こし片の端縁を風下側に対向
させると共に、上記折り曲げ縁となる直線を、空気の流
れ方向に対して15〜45度傾斜させた、熱交換器用フィ
ン。1. By bending the inside of a hook-shaped cut formed at a plurality of locations of a thin metal plate with a straight line connecting the ends of the cut as a fold edge, and bending it by 105 to 165 degrees with respect to the main body of the thin metal plate. , Forming a bent and raised piece that is inclined 15 to 75 degrees with respect to the main body portion, and the end edge of this bent and raised piece is opposed to the leeward side, and the straight line that becomes the bent edge is with respect to the air flow direction. Fins for heat exchangers that are inclined 15 to 45 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988077782U JPH0645183Y2 (en) | 1988-06-14 | 1988-06-14 | Heat exchanger fins |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988077782U JPH0645183Y2 (en) | 1988-06-14 | 1988-06-14 | Heat exchanger fins |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH027488U JPH027488U (en) | 1990-01-18 |
| JPH0645183Y2 true JPH0645183Y2 (en) | 1994-11-16 |
Family
ID=31302744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988077782U Expired - Lifetime JPH0645183Y2 (en) | 1988-06-14 | 1988-06-14 | Heat exchanger fins |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0645183Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5079131B1 (en) * | 2011-09-22 | 2012-11-21 | 株式会社柿生精密 | Fin member with auxiliary fin |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6239180U (en) * | 1985-08-26 | 1987-03-09 |
-
1988
- 1988-06-14 JP JP1988077782U patent/JPH0645183Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH027488U (en) | 1990-01-18 |
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