JP2003075088A - Structure of cooling fin - Google Patents
Structure of cooling finInfo
- Publication number
- JP2003075088A JP2003075088A JP2001258178A JP2001258178A JP2003075088A JP 2003075088 A JP2003075088 A JP 2003075088A JP 2001258178 A JP2001258178 A JP 2001258178A JP 2001258178 A JP2001258178 A JP 2001258178A JP 2003075088 A JP2003075088 A JP 2003075088A
- Authority
- JP
- Japan
- Prior art keywords
- fitting
- heat
- heating element
- fins
- fin structure
- 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.)
- Granted
Links
Landscapes
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、発熱体を放熱用フィン
にて冷却する冷却フィン構造に関し、詳しくは発熱体と
複数の放熱用フィンとの接合構造に特徴のある冷却フィ
ン構造に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooling fin structure for cooling a heating element with a radiation fin, and more particularly to a cooling fin structure characterized by a joint structure between the heating element and a plurality of radiation fins. is there.
【０００２】[0002]
【従来の技術】図９〜図１０は、特開昭６２−８６８４
２号公報および特開平９−１１３０５８号公報に示され
た冷却フィン構造の概略断面図であって、１は発熱体、
２は放熱用フィン、４は発熱体１の表面に設けられた切
り溝、３はろう材である。上記の冷却フィン構造は、発
熱体１の表面に多数の切り溝４を設け、各切り溝４に放
熱用フィン２の一端を挿入し、ついで発熱体１と放熱用
フィン２とをろう材３にて上記両者１、２を接合するこ
とにより製作される。2. Description of the Related Art FIGS.
2 is a schematic cross-sectional view of the cooling fin structure disclosed in JP-A-9-113058 and JP-A-9-113058, in which 1 is a heating element,
Reference numeral 2 is a heat radiating fin, 4 is a cut groove provided on the surface of the heating element 1, and 3 is a brazing material. In the above cooling fin structure, a large number of cut grooves 4 are provided on the surface of the heat generating element 1, one end of the heat radiation fin 2 is inserted into each of the cut grooves 4, and then the heat generating element 1 and the heat radiation fin 2 are joined together by the brazing material 3 It is manufactured by joining the above 1 and 2 together.
【０００３】なお上記の従来技術では、図９に示すよう
に放熱用フィン２は発熱体１の表面に対して垂直などの
一定の角度で立てられることが要求されるところ、実際
には図１０に示すよう、一部の放熱用フィン２が異常な
傾きをした状態で接合されることがしばしばある。かか
る一部の放熱用フィン２の異常な傾きは、一般的に切り
溝４を形成する際の溝幅や溝深さを一定にすることが困
難なために生じ、一部の切り溝には、放熱用フィン２と
発熱体１との間に遊び空隙が残存して放熱用フィン２が
傾くことになる。かかる放熱用フィンの傾きは、その放
熱性能を低下させる問題がある。In the above-mentioned prior art, as shown in FIG. 9, the heat radiation fins 2 are required to be erected at a constant angle such as perpendicular to the surface of the heating element 1, but in reality, as shown in FIG. As shown in (4), some of the heat radiation fins 2 are often joined in an abnormally inclined state. The abnormal inclination of some of the heat radiation fins 2 generally occurs because it is difficult to make the groove width and the groove depth constant when the kerfs 4 are formed. The play gap is left between the heat radiation fin 2 and the heat generating element 1, and the heat radiation fin 2 is inclined. The inclination of the heat radiation fins causes a problem of reducing the heat radiation performance.
【０００４】なお発熱体の表面に放熱用フィンを一定の
角度で立てることについては、従来から種々の方法が提
案されている。例えば特開２０００−３４９２１２号公
報には、放熱用フィンとして機能する複数枚の薄板を並
列させた状態として底材となる平板上に予めろう付けし
たユニットを先ず作成し、これを発熱体の表面に設置す
る方法が開示されている。特開２０００−１９５９９７
号公報には、放熱用フィンとして機能する広面積の薄板
を波板状に加工してコルゲートフィンを得、このコルゲ
ートフィンを放熱プレートに取り付けたユニットを上記
と同様にして発熱体の表面に設置する方法が開示されて
いる。Various methods have heretofore been proposed for erecting the radiation fins on the surface of the heating element at a constant angle. For example, in Japanese Unexamined Patent Publication No. 2000-349212, a unit in which a plurality of thin plates functioning as heat radiation fins are arranged in parallel and brazed on a flat plate serving as a bottom material in advance is first prepared, and the unit is formed on the surface of a heating element. A method of installing the device is disclosed. Japanese Patent Laid-Open No. 2000-195997
In the publication, a corrugated fin is obtained by processing a wide area thin plate functioning as a heat dissipation fin into a corrugated plate shape, and a unit in which this corrugated fin is attached to a heat dissipation plate is installed on the surface of a heating element in the same manner as above. A method of doing so is disclosed.
【０００５】ところで、放熱を要する発熱体の構造やサ
イズは千差万別である。上記のユニットでは、その放熱
用フィンは一定の角度で立てられる長所はあるものの、
全体形状の自由度が低いのでが千差万別の発熱体には適
用し難い欠点がある。これに対して前記特開昭６２−８
６８４２号公報などに開示された方法は前記の問題点を
孕んではいるものの、発熱体と放熱用フィンに嵌合用の
凹凸を形成し得る限り、制限なく適用できる大きな長所
がある。By the way, the structures and sizes of the heat generating elements that require heat radiation vary widely. In the above unit, although the heat radiation fin has the advantage that it can stand at a certain angle,
Since the degree of freedom of the overall shape is low, it has a drawback that it is difficult to apply it to the heating elements of various variations. On the other hand, the above-mentioned JP-A-62-8
Although the method disclosed in Japanese Patent No. 6842 has the above-mentioned problems, it has a great advantage that it can be applied without limitation as long as the fitting unevenness can be formed on the heat generating element and the heat radiation fin.
【０００６】[0006]
【発明が解決しようとする課題】本発明は、従来技術に
おける上記の事情に鑑みて、発熱体の表面に放熱用フィ
ンを直接接合する技術の改良に関し、放熱用フィンが発
熱体の表面に所定の角度で立てられた冷却フィン構造を
提供することを課題とするものである。SUMMARY OF THE INVENTION In view of the above-mentioned circumstances in the prior art, the present invention relates to an improvement in the technique of directly joining the heat radiation fin to the surface of the heat generating element, and the heat radiation fin is provided on the surface of the heat generating element. It is an object to provide a cooling fin structure which is stood at an angle of.
【０００７】[0007]
【課題を解決するための手段】本発明の冷却フィン構造
は、（１）発熱体に複数の放熱用フィンが取付けられた
冷却フィン構造において、上記各放熱用フィンが上記発
熱体に対して所定の角度で且つ実質的に遊びなく嵌合さ
れるように、上記各放熱用フィンと上記発熱体のいずれ
か一方は嵌合用凸部を、他方は上記嵌合用凸部が嵌合さ
れる嵌合用凹部を有するものである。The cooling fin structure according to the present invention is (1) a cooling fin structure in which a plurality of heat dissipating fins are attached to a heat generating element, wherein each of the heat dissipating fins is predetermined with respect to the heat generating element. One of the heat dissipating fins and the heating element has a fitting projection, and the other has a fitting projection to which the fitting projection is fitted so as to be fitted at substantially no play. It has a recess.
【０００８】（２）上記（１）において、上記発熱体と
上記各放熱用フィンとは、上記嵌合用凸部と嵌合用凹部
との嵌合部および／または上記嵌合部の近傍において金
属的に接合されたものである。(2) In the above (1), the heating element and each of the heat radiation fins are metallic in the fitting portion between the fitting convex portion and the fitting concave portion and / or in the vicinity of the fitting portion. Is joined to.
【０００９】（３）上記（１）または（２）において、
上記嵌合用凸部は上記各放熱用フィンの一端に設けら
れ、上記嵌合用凹部は、上記発熱体に設けられたもので
ある。(3) In the above (1) or (2),
The fitting convex portion is provided on one end of each of the heat radiation fins, and the fitting concave portion is provided on the heating element.
【００１０】本発明の冷却フィン構造は、また（４）発
熱体に複数の放熱用フィンが取付けられた冷却フィン構
造において、上記各放熱用フィンは、上記発熱体と上記
各放熱用フィンに設けられた嵌合用凹部に挿着された嵌
合用部材により上記発熱体に対して所定の角度で且つ実
質的に遊びなく取付けられたものである。The cooling fin structure of the present invention is also (4) a cooling fin structure in which a plurality of heat dissipating fins are attached to a heat generating element, wherein each of the heat dissipating fins is provided on the heat generating element and each of the heat dissipating fins. The fitting member inserted into the fitting recess is attached to the heating element at a predetermined angle and substantially without play.
【００１１】（５）上記（４）において、上記発熱体と
上記各放熱用フィンとは上記取付状態において金属的に
接合されたものである。(5) In the above (4), the heating element and each of the heat dissipating fins are metallically joined in the mounted state.
【００１２】（６）上記（１）〜（５）のいずれか一項
において、上記複数の放熱用フィンのうちの少なくとも
一部の放熱用フィンは、隣接する放熱用フィンと連結部
を介して一体的に連結されたものである。(6) In any one of the above items (1) to (5), at least a part of the heat radiation fins of the plurality of heat radiation fins is connected to an adjacent heat radiation fin via a connecting portion. They are integrally connected.
【００１３】（７）上記（１）〜（５）のいずれか一項
において、上記発熱体の少なくとも表面層と上記各放熱
用フィンの少なくとも表面層は互いに同種材料により形
成されており、上記両表面層はろう付けされたものであ
る。(7) In any one of the above items (1) to (5), at least the surface layer of the heating element and at least the surface layer of each of the heat radiation fins are made of the same material. The surface layer is brazed.
【００１４】（８）上記（１）〜（５）のいずれか一項
において、上記発熱体の少なくとも表面層と上記各放熱
用フィンの少なくとも表面層は互に異種材料により形成
されており、上記両表面部はろう付けされたものであ
る。(8) In any one of the above items (1) to (5), at least the surface layer of the heating element and at least the surface layer of each of the heat radiation fins are made of different materials. Both surface parts are brazed.
【００１５】（９）上記（１）〜（５）のいずれか一項
において、上記各放熱用フィンは、上記発熱体と金属的
に接合される部分がろう材またはろう材としての性質を
有する材料により形成されたものである。(9) In any one of the above items (1) to (5), each of the heat radiation fins has a property as a brazing material or a brazing material at a portion which is metallically joined to the heating element. It is formed of a material.
【００１６】[0016]
【発明の実施の形態】以下において、前記図９〜図１０
に示された部位と同じ部位については同一符号を付して
部位の内容説明を省略することがある。BEST MODE FOR CARRYING OUT THE INVENTION In the following, referring to FIGS.
Parts that are the same as the parts shown in FIG.
【００１７】実施の形態１．図１は、本発明の冷却放熱
用フィン構造における実施の形態１の一部断面図を含む
部分斜視図であって、１は発熱体、１１は発熱体１の表
面に設けられた条状の嵌合用凹部、２は放熱用フィン、
２１は放熱用フィン２の肩面、２２は肩面２１から突出
した条状の嵌合用凸部である。嵌合用凸部２２は、両肩
面２１、２１から垂直に突出し、且つ上記条状の長手方
向に直行する方向の断面が長方形を呈する。また嵌合用
凹部１1は、嵌合用凸部２２が直接、あるいは後記する
薄いろう材のシート片やペーストが介在した状態で実質
的にぐらつきなしに嵌合するように、長方形の断面を有
する。かかる嵌合は、嵌合用凹部１1と嵌合用凸部２２
の各断面の形状とサイズとがほぼ同じであり、且つ嵌合
用凸部２２の両肩面２１、２１が発熱体１の表面に当接
して放熱用フィン２のぐらつきを防止することに基づ
く。Embodiment 1. FIG. 1 is a partial perspective view including a partial cross-sectional view of the first embodiment of the cooling and heat radiating fin structure of the present invention, in which 1 is a heating element and 11 is a strip-shaped member provided on the surface of the heating element 1. Fitting recess, 2 is a heat dissipation fin,
Reference numeral 21 denotes a shoulder surface of the heat dissipation fin 2, and 22 denotes a strip-shaped fitting projection protruding from the shoulder surface 21. The fitting convex portion 22 projects vertically from both shoulder surfaces 21, 21 and has a rectangular cross section in a direction orthogonal to the longitudinal direction of the above-mentioned strip. Further, the fitting concave portion 11 has a rectangular cross section so that the fitting convex portion 22 fits directly or without substantial wobbling in a state where a sheet piece or paste of a thin brazing material described later is interposed. Such fitting is performed by fitting the fitting recess 11 and the fitting projection 22.
The shape and size of each cross section are substantially the same, and both shoulder surfaces 21 and 21 of the fitting convex portion 22 abut on the surface of the heating element 1 to prevent the radiation fin 2 from wobbling.
【００１８】一般的に、嵌合用凹部１1と嵌合用凸部２
２の形状や嵌合精度は、発熱体１と放熱用フィン２の材
質やサイズに応じて適宜最適化が可能となる。かくして
嵌合用凹部１1と嵌合用凸部２２とは、発熱体１の表面
の法線方向に延在するように設定統一することにより、
多数の放熱用フィン２（図１ではその１枚のみ図示）を
互いに平行に且つかつ発熱体１の表面に対して垂直に立
てることができる。Generally, the fitting concave portion 11 and the fitting convex portion 2
The shape and fitting accuracy of 2 can be optimized as appropriate depending on the material and size of the heating element 1 and the heat radiation fin 2. Thus, the fitting concave portion 11 and the fitting convex portion 22 are set and unified so as to extend in the normal direction of the surface of the heating element 1,
A large number of heat radiation fins 2 (only one of which is shown in FIG. 1) can be erected parallel to each other and perpendicular to the surface of the heating element 1.
【００１９】発熱体１と放熱用フィン２とは、溶接、ろ
う付け、あるいはその他の方法にて金属的に接合されこ
とにより一層高機械強度で接合される。ろう付けの場
合、例えば嵌合用凸部２２をシート状あるいはペースト
状のろう材（図示せず）と一緒に嵌合用凹部１1内に挿
入嵌合し、適当な加熱方法により必要個所を加熱すれば
よい。The heat generating element 1 and the heat radiating fin 2 are metallically joined by welding, brazing, or any other method, so that they are joined with higher mechanical strength. In the case of brazing, for example, the fitting convex portion 22 may be inserted and fitted into the fitting concave portion 11 together with a sheet-shaped or paste-shaped brazing material (not shown), and a necessary portion may be heated by an appropriate heating method. Good.
【００２０】実施の形態２．図２は、本発明の冷却フィ
ン構造における実施の形態２の一部断面図を含む部分斜
視図であって、２３は放熱用フィン２の肩面２１に設け
られた条状の嵌合用凹部、５は断面長方形の棒状体から
なる嵌合用部材である。上記冷却フィン構造の製作に際
しては、例えば先ず発熱体１の表面の嵌合用凹部１１に
嵌合用部材５の下半部を挿入嵌合し、つぎに嵌合用凹部
１１から飛び出した嵌合用部材５の上半部を放熱用フィ
ン２の嵌合用凹部２３に挿入嵌合する。かくして図２に
示す状態に至る。Embodiment 2. FIG. 2 is a partial perspective view including a partial cross-sectional view of the second embodiment of the cooling fin structure of the present invention, in which 23 is a line-shaped fitting recess provided on the shoulder surface 21 of the heat dissipation fin 2, Reference numeral 5 is a fitting member made of a rod-shaped body having a rectangular cross section. In manufacturing the cooling fin structure, for example, the lower half of the fitting member 5 is first inserted into the fitting recess 11 on the surface of the heating element 1 and then the fitting member 5 protruding from the fitting recess 11 is inserted. The upper half portion is inserted and fitted into the fitting recess 23 of the heat dissipation fin 2. Thus, the state shown in FIG. 2 is reached.
【００２１】発熱体１、嵌合用部材５、および放熱用フ
ィン２の金属的接合は、前記実施の形態１の場合と同様
に行ってよく、ろう付けの場合、例えば嵌合用部材５と
してその全体をシート状あるいはペースト状のろう材
（図示せず）で包んだものを用いることにより必要接合
間にろう材を供給することができる。The metallic joining of the heating element 1, the fitting member 5, and the heat radiation fin 2 may be performed in the same manner as in the first embodiment, and in the case of brazing, for example, the fitting member 5 as a whole is used. It is possible to supply the brazing filler metal during necessary joining by using a sheet-shaped or paste-shaped brazing filler metal (not shown) wrapped around.
【００２２】しかして嵌合用部材５は、発熱体１と放熱
用フィン２とが対向し、且つ両嵌合用凹部１１、２３に
嵌合した状態にあって、放熱用フィン２が発熱体１に対
して所定の角度（図２では９０°）で且つ実質的に遊び
なく取付けられる機能を奏する。嵌合用部材５は、上記
の機能を奏する限り、その長さ、断面形状および断面サ
イズなどは任意であってよいが、発熱体１と嵌合用部材
５との間および放熱用フィン２と嵌合用部材５との間
に、放熱用フィン２による放熱性能を低減するような空
隙が生じない形状およびサイズを有するものが好まし
い。両嵌合用凹部１１、２３および嵌合用部材５の形状
や嵌合精度は、一般的に発熱体１、放熱用フィン２、嵌
合用部材５の材質やサイズに応じて適宜最適化が可能と
なる。In the fitting member 5, however, the heat radiating fin 2 is attached to the heat generating element 1 when the heat generating element 1 and the heat radiating fin 2 face each other and are fitted in both fitting recesses 11 and 23. On the other hand, it has a function of being attached at a predetermined angle (90 ° in FIG. 2) and substantially without play. The fitting member 5 may have any length, cross-sectional shape, cross-sectional size, and the like as long as the fitting member 5 has the above-described function, but the fitting member 5 is fitted between the heating element 1 and the fitting member 5 and the heat radiation fin 2 for fitting. It is preferable to have a shape and size that do not form a gap between the member 5 and the member 5 that reduces the heat dissipation performance of the heat dissipation fins 2. Generally, the shapes and fitting accuracy of the fitting recesses 11 and 23 and the fitting member 5 can be appropriately optimized according to the material and size of the heating element 1, the heat radiation fin 2, and the fitting member 5. .
【００２３】実施の形態３．図３は、本発明の冷却フィ
ン構造における実施の形態３の一部断面図を含む部分斜
視図であって、３はろう材である。実施の形態３は、発
熱体１の少なくとも表面層と放熱用フィン２とが互いに
同種材料、例えば銅で形成されており、且つろう付けに
より固定されている構造を有する。Embodiment 3. FIG. 3 is a partial perspective view including a partial cross-sectional view of the third embodiment of the cooling fin structure of the present invention, and 3 is a brazing material. The third embodiment has a structure in which at least the surface layer of the heating element 1 and the heat radiation fins 2 are made of the same material, for example, copper, and are fixed by brazing.
【００２４】実施の形態３においては、前記実施の形態
１で説明した嵌合構造を対象とし、発熱体１の嵌合用凹
部１１を覆うようにシート状あるいはペースト状のろう
材３を置き、その状態で放熱用フィン２の嵌合用凸部２
２を嵌合させ、ついで両者をろう付けする。発熱体１と
放熱用フィン２とが同種材料から形成されているので、
高温時の熱膨張によるひずみや応力の発生が抑制でき
る。また、接合にろう付けを用いることで勘合部にろう
材３がなじみ、勘合部での空隙などによる冷却性能低下
の問題を抑制できる。In the third embodiment, the fitting structure described in the first embodiment is targeted, and the sheet-shaped or paste-shaped brazing material 3 is placed so as to cover the fitting recess 11 of the heating element 1, and The convex portion 2 for fitting the heat radiation fin 2 in the state
2 are fitted together, and then both are brazed. Since the heating element 1 and the radiation fin 2 are made of the same material,
Generation of strain and stress due to thermal expansion at high temperatures can be suppressed. Further, by using brazing for joining, it is possible to suppress the problem that the brazing material 3 fits in the fitting portion and the cooling performance is deteriorated due to a gap in the fitting portion.
【００２５】実施の形態４．実施の形態４は、実施の形
態３とは発熱体１（図３参照、以下同じ）の少なくとも
表面層と放熱用フィン２が互いに異種材料から形成され
ている点において異なり、その他の構成は同じである。
例えば、発熱体１の表面層、あるいは全体は、銅にて、
一方、放熱用フィン２の全体はアルミニウムにて、それ
ぞれ形成される。Fourth Embodiment The fourth embodiment is different from the third embodiment in that at least the surface layer of the heating element 1 (see FIG. 3, hereinafter the same) and the heat radiation fins 2 are made of different materials, and other configurations are the same. Is.
For example, the surface layer of the heating element 1 or the whole is made of copper,
On the other hand, the heat radiation fins 2 are entirely made of aluminum.
【００２６】上記の通り異種材料にて形成する場合、本
発明の冷却フィン構造の使用目的に応じて冷却性能をよ
り向上できる材料、重量を軽減できる材料、あるいは構
造強度が増す材料など、の選択が可能となり、冷却性能
の維持向上が図れる効果がある。In the case where the cooling fin structure of the present invention is formed as described above, a material that can further improve the cooling performance, a material that can reduce the weight, or a material that increases the structural strength can be selected according to the purpose of use of the cooling fin structure of the present invention. It is possible to maintain and improve the cooling performance.
【００２７】実施の形態５．図４は、本発明の冷却フィ
ン構造における実施の形態５の一部断面図を含む部分斜
視図であって、放熱用フィン２は、放熱作用の主要部を
なす上部分２４と下部分２５とから構成されており、下
部分２５は嵌合用凸部２２を有する。また放熱用フィン
２は、その上下間で形成材料が異なるクラッドからなっ
ており、上部分２４は、発熱体１の少なくとも表面層と
同材料あるいは異種材料からなり、下部分２５は、嵌合
用凸部２２を含めてろう材３と同じまたは同種のろう付
け機能を有する材料からなっている。Embodiment 5. FIG. 4 is a partial perspective view including a partial cross-sectional view of the fifth embodiment of the cooling fin structure of the present invention, in which the heat radiation fin 2 includes an upper portion 24 and a lower portion 25 which are the main portions of the heat radiation action. The lower portion 25 has the fitting projection 22. The heat dissipating fin 2 is made of a clad whose upper and lower parts are made of different materials, the upper part 24 is made of the same material as or a different material from at least the surface layer of the heating element 1, and the lower part 25 is a fitting protrusion. The material including the portion 22 has the same or similar brazing function as the brazing material 3.
【００２８】上部分２４を発熱体１の少なくとも表面層
と同材料とする場合には、実施の形態３の場合と、一
方、上部分２４を発熱体１の少なくとも表面層と異種材
料とする場合には、実施の形態４の場合と、それぞれ同
様の効果が得られる。また下部分２５をろう付け機能を
有する材料とすることで、当該部の組立時にろう材部品
が不要となり部品点数の削減が図れ、さらに勘合部での
ろう材のなじみが良好となって勘合部でのろう付け性が
向上し、空隙など発生が抑制される。When the upper portion 24 is made of the same material as at least the surface layer of the heating element 1, the case of the third embodiment is used, while when the upper portion 24 is made of a different material from at least the surface layer of the heating element 1. The same effect as in the case of the fourth embodiment can be obtained. Further, by using the material having the brazing function for the lower portion 25, the brazing material parts are not required at the time of assembling the relevant part, the number of parts can be reduced, and the fitting of the brazing material in the fitting part becomes good, and the fitting part The brazing property in the is improved, and the generation of voids is suppressed.
【００２９】実施の形態６．図５は、本発明の冷却放熱
用フィン構造における実施の形態６の一部断面図を含む
部分斜視図である。実施の形態６では、発熱体１の少な
くとも表面層と放熱用フィン２とが互いに同種材料、例
えば銅で形成されており、また発熱体１、嵌合用部材
５、および放熱用フィン２は、前記実施の形態２の場合
と同様にろう付けされている。しかして実施の形態６で
は、前記実施の形態２、３の両効果が得られる。Sixth Embodiment FIG. 5 is a partial perspective view including a partial cross-sectional view of a sixth embodiment of the cooling and radiating fin structure of the present invention. In the sixth embodiment, at least the surface layer of the heat generating element 1 and the heat radiating fins 2 are made of the same material, for example, copper, and the heat generating element 1, the fitting member 5, and the heat radiating fins 2 are the same as those described above. Brazing is performed as in the case of the second embodiment. Therefore, in the sixth embodiment, both effects of the second and third embodiments can be obtained.
【００３０】実施の形態７．実施の形態７は、実施の形
態６とは発熱体１（図５参照、以下同じ）の少なくとも
表面層と放熱用フィン２とは、互いに異種材料から形成
されている点において異なり、その他の構成は同じであ
る。例えば、発熱体１の表面層あるいは全体は銅にて、
一方、放熱用フィン２の全体はアルミニウムにて、それ
ぞれ形成される。上記の通り異種材料にて形成する場
合、本発明の冷却フィン構造の使用目的に応じて冷却性
能をより向上できる材料、重量を軽減できる材料、ある
いは構造強度が増す材料などの選択が可能となり、冷却
性能の維持向上が図れる効果がある。しかして実施の形
態７では、前記実施の形態２、４の両効果が得られる。Embodiment 7. The seventh embodiment differs from the sixth embodiment in that at least the surface layer of the heating element 1 (see FIG. 5, the same applies hereinafter) and the fins 2 for heat dissipation are made of different materials from each other. Are the same. For example, the surface layer of the heating element 1 or the whole is made of copper,
On the other hand, the heat radiation fins 2 are entirely made of aluminum. When formed of different materials as described above, it becomes possible to select a material that can further improve the cooling performance, a material that can reduce the weight, or a material that increases the structural strength according to the purpose of use of the cooling fin structure of the present invention. This has the effect of maintaining and improving the cooling performance. Therefore, in the seventh embodiment, both effects of the second and fourth embodiments can be obtained.
【００３１】実施の形態８．図６は、本発明の冷却放熱
用フィン構造における実施の形態８の一部断面図を含む
部分斜視図であって、実施の形態８は、前記実施の形態
２（図２参照）および前記実施の形態５（図４参照）の
混合構造であるので、実施の形態２、５の両効果が得ら
れる。さらに発熱体１と放熱用フィン２との各材料を実
施の形態６の場合と同様に同種材料とすると、実施の形
態６と同様の効果も得られ、一方、実施の形態７の場合
と同様に異種材料とすると、実施の形態７と同様の効果
も得られる。Embodiment 8. FIG. 6 is a partial perspective view including a partial cross-sectional view of an eighth embodiment of the cooling heat radiation fin structure of the present invention. The eighth embodiment includes the second embodiment (see FIG. 2) and the second embodiment. Since the mixed structure of the fifth embodiment (see FIG. 4) is obtained, both effects of the second and fifth embodiments can be obtained. Further, if the materials of the heating element 1 and the heat radiation fin 2 are made of the same kind of material as in the case of the sixth embodiment, the same effect as that of the sixth embodiment can be obtained, while the same as in the case of the seventh embodiment. If different materials are used, the same effect as in the seventh embodiment can be obtained.
【００３２】実施の形態９
図７は、本発明の冷却フィン構造における実施の形態９
の部分断面図である。図７において、１１は発熱体１の
嵌合用凹部１１、２は放熱用フィン、２２は放熱用フィ
ン２の嵌合用凸部、２３は放熱用フィン２の嵌合用凹
部、２６は前記連結部、５は嵌合用部材である。Ninth Embodiment FIG. 7 shows a ninth embodiment of the cooling fin structure of the present invention.
FIG. In FIG. 7, 11 is a fitting recess 11 of the heating element 1, 2 is a radiating fin, 22 is a fitting protrusion of the radiating fin 2, 23 is a fitting recess of the radiating fin 2, 26 is the connecting portion, Reference numeral 5 is a fitting member.
【００３３】放熱用フィン２は、図示する通りコルゲー
ト状を呈しており、構造的には多数の放熱用フィン２が
隣接間で連結部２６により一体的に連結された構造を有
し、コルゲートの連続するＵ字体の底部において図示す
る通り、交互に嵌合用凸部２２と嵌合用凹部２３とを有
する。一方、発熱体１は、上記嵌合用凸部２２と嵌合用
凹部２３とに対向する個所に、それぞれ広幅の嵌合用凹
部１１と狭幅の嵌合用凹部１１とを有する。嵌合用凸部
２２と広幅の嵌合用凹部１１とは直接嵌合しており、嵌
合用凹部２３と狭幅の嵌合用凹部１１とは、嵌合用部材
５を介して嵌合している。発熱体１と放熱用フィン２と
は、互いに同種材料にて形成されており、実施の形態９
は、前記実施の形態３、６と同様の効果を有する。The heat radiation fin 2 has a corrugated shape as shown in the figure, and has a structure in which a large number of heat radiation fins 2 are integrally connected by adjacent connecting portions 26. As shown in the figure at the bottom of the continuous U-shaped body, the fitting convex portions 22 and the fitting concave portions 23 are alternately provided. On the other hand, the heating element 1 has a wide fitting concave portion 11 and a narrow fitting concave portion 11, respectively, at portions facing the fitting convex portion 22 and the fitting concave portion 23. The fitting protrusion 22 and the wide fitting recess 11 are directly fitted together, and the fitting recess 23 and the narrow fitting recess 11 are fitted together via the fitting member 5. The heating element 1 and the heat radiation fin 2 are formed of the same material as each other, and the ninth embodiment
Has the same effect as in the third and sixth embodiments.
【００３４】実施の形態１０．実施の形態１０は、実施
の形態９とは発熱体１（図７参照、以下同じ）の少なく
とも表面層と放熱用フィン２とは、互いに異種材料から
形成されている点において異なり、その他の構成は同じ
である。よって実施の形態１０は、前記実施の形態４、
７と同様の効果を有する。Embodiment 10. The tenth embodiment is different from the ninth embodiment in that at least the surface layer of the heating element 1 (see FIG. 7, the same applies hereinafter) and the fins 2 for heat dissipation are made of different materials from each other. Are the same. Therefore, the tenth embodiment corresponds to the fourth embodiment,
It has the same effect as 7.
【００３５】実施の形態１１．図８は、本発明の冷却フ
ィン構造における実施の形態１１の部分断面図であっ
て、放熱用フィン２は、互いに異種材料にて形成された
外層２７と内層２８の二層構造を有する点において前記
実施の形態９、１０と異なっており、その他の構成は同
じである。内層２８の形成材料をろう材３と同じまたは
同種のろう付け機能を有する材料とすることにより、実
施の形態１１は、前記実施の形態５、８と同様の効果を
有する。Eleventh Embodiment FIG. 8 is a partial cross-sectional view of the eleventh embodiment of the cooling fin structure of the present invention, in which the heat dissipation fin 2 has a two-layer structure of an outer layer 27 and an inner layer 28 made of different materials. The present embodiment is different from the ninth and tenth embodiments, and the other structure is the same. The eleventh embodiment has the same effects as those of the fifth and eighth embodiments by using a material having the same or similar brazing function as that of the brazing material 3 for the inner layer 28.
【００３６】本発明は、前記実施の形態１〜１１に限定
されるものではなく、種々の変形形態を包含する。例え
ば、発熱体に対する放熱用フィンの取り付け角度は任意
であってよく、また多数の放熱用フィンのうちの隣接す
るフィン同士は、互いの設置間隔や平行度などで所望の
関係をもって取り付けられる限り、前記した嵌合用凸
部、嵌合用凹部、および嵌合用部材の形状並びにそれら
間の嵌合状態についても特に制限はない。The present invention is not limited to the first to eleventh embodiments described above, but includes various modifications. For example, the mounting angle of the heat dissipation fins with respect to the heating element may be arbitrary, and the adjacent fins of the plurality of heat dissipation fins may be mounted in a desired relationship by mutual installation intervals, parallelism, etc. There are no particular restrictions on the shapes of the fitting projection, the fitting recess, and the fitting member, and the fitting state between them.
【００３７】[0037]
【発明の効果】本発明の冷却フィン構造は、以上説明し
た通り、（１）発熱体に複数の放熱用フィンが取付けら
れた冷却フィン構造において、上記各放熱用フィンが上
記発熱体に対して所定の角度で且つ実質的に遊びなく嵌
合されるように、上記各放熱用フィンと上記発熱体のい
ずれか一方は嵌合用凸部を、他方は上記嵌合用凸部が嵌
合される嵌合用凹部を有するものであるので、種々の表
面形状を有する発熱体に対して複数の放熱用フィンを所
定の角度で安定的に取り付けることができ、このために
放熱用フィンの放熱性能が向上する。As described above, the cooling fin structure of the present invention is (1) a cooling fin structure in which a plurality of heat radiation fins are attached to a heating element, and each of the heat radiation fins is connected to the heating element. One of the heat dissipating fins and the heating element is fitted with a fitting projection, and the other is fitted with the fitting projection so that they are fitted at a predetermined angle and substantially without play. Since it has a fitting recess, it is possible to stably attach a plurality of heat dissipating fins to a heating element having various surface shapes at a predetermined angle, which improves the heat dissipating performance of the heat dissipating fins. .
【００３８】また（２）上記（１）において、上記発熱
体と上記各放熱用フィンとは、上記嵌合用凸部と嵌合用
凹部との嵌合部および／または上記嵌合部の近傍におい
て金属的に接合されたものであると、上記両者間の熱伝
導性や機械的接合強度が向上する。(2) In the above (1), the heating element and the heat dissipating fins are made of metal in the fitting portion between the fitting convex portion and the fitting concave portion and / or in the vicinity of the fitting portion. When they are mechanically bonded, the thermal conductivity and mechanical bonding strength between the two are improved.
【００３９】また（３）上記（１）または（２）におい
て、上記嵌合用凸部は上記各放熱用フィンの一端に設け
られ、上記嵌合用凹部は、上記発熱体に設けられたもの
であると、概して嵌合用凸部は発熱体によりも放熱用フ
ィンの一端に設け易いので、本発明の効果が一層顕著と
なる。(3) In the above (1) or (2), the fitting protrusion is provided at one end of each of the heat radiation fins, and the fitting recess is provided in the heating element. In general, since the fitting convex portion is more easily provided at one end of the heat radiation fin than the heating element, the effect of the present invention becomes more remarkable.
【００４０】本発明の冷却フィン構造は、また（４）発
熱体に複数の放熱用フィンが取付けられた冷却フィン構
造において、上記各放熱用フィンは、上記発熱体と上記
各放熱用フィンに設けられた嵌合用凹部に挿着された嵌
合用部材により上記発熱体に対して所定の角度で且つ実
質的に遊びなく取付けられたものであるので、前記
（１）の発明と同様に、種々の表面形状を有する発熱体
に対して複数の放熱用フィンを所定の角度で安定的に取
り付けることができ、このために放熱用フィンの放熱性
能が向上する。The cooling fin structure of the present invention is also (4) a cooling fin structure in which a plurality of heat dissipating fins are attached to a heat generating element, wherein each of the heat dissipating fins is provided on the heat generating element and each of the heat dissipating fins. Since it is attached to the heat generating element at a predetermined angle and with substantially no play by the fitting member inserted into the fitting recess formed therein, various kinds of members can be used as in the invention of (1). It is possible to stably attach a plurality of heat radiation fins to the heating element having a surface shape at a predetermined angle, which improves the heat radiation performance of the heat radiation fins.
【００４１】また（５）上記（４）において、上記発熱
体と上記各放熱用フィンとは上記取付状態において金属
的に接合されたものであると、上記両者間の熱伝導性や
機械的接合強度が向上する。(5) In the above (4), if the heat generating element and each of the heat dissipating fins are metallically joined in the mounted state, the thermal conductivity and mechanical joining between the both are performed. Strength is improved.
【００４２】また（６）上記（１）〜（５）のいずれか
一項において、上記複数の放熱用フィンのうちの少なく
とも一部の放熱用フィンは、隣接する放熱用フィンと連
結部を介して一体的に連結されたものであると、例えば
コルゲート構造のような放熱用フィンについても本発明
の前記した諸効果を得ることができる。(6) In any one of the above items (1) to (5), at least a part of the heat radiation fins among the plurality of heat radiation fins is connected to an adjacent heat radiation fin through a connecting portion. If they are integrally connected with each other, the above-described effects of the present invention can be obtained even for a heat dissipation fin such as a corrugated structure.
【００４３】また（７）上記（１）〜（５）のいずれか
一項において、上記発熱体の少なくとも表面層と上記各
放熱用フィンの少なくとも表面層は互いに同種材料によ
り形成されており、上記両表面層はろう付けされたもの
であると、高温時の熱膨張によるひずみや応力の発生が
抑制できる。(7) In any one of the above items (1) to (5), at least the surface layer of the heating element and at least the surface layer of each of the heat radiation fins are formed of the same material. If both surface layers are brazed, generation of strain and stress due to thermal expansion at high temperature can be suppressed.
【００４４】また（８）上記（１）〜（５）のいずれか
一項において、上記発熱体の少なくとも表面層と上記各
放熱用フィンの少なくとも表面層は互に異種材料により
形成されており、上記両表面部はろう付けされたもので
あると、本発明の冷却フィン構造の使用目的に応じて冷
却性能をより向上できる材料、重量を軽減できる材料、
あるいは構造強度が増す材料などの選択が可能となり、
冷却性能の維持向上が図れる効果がある。(8) In any one of the above items (1) to (5), at least the surface layer of the heating element and at least the surface layer of each of the heat radiation fins are made of different materials. If both of the surface portions are brazed, a material that can further improve the cooling performance depending on the purpose of use of the cooling fin structure of the present invention, a material that can reduce the weight,
Alternatively, it becomes possible to select materials that increase structural strength,
This has the effect of maintaining and improving the cooling performance.
【００４５】また（９）上記（１）〜（５）のいずれか
一項において、上記各放熱用フィンは、上記発熱体と金
属的に接合される部分がろう材またはろう材としての性
質を有する材料により形成されたものであると、本発明
の冷却フィン構造の組立時にろう材部品が不要となり部
品点数の削減が図れ、さらに嵌合部でのろう材のなじみ
が良好となって嵌合部でのろう付け性が向上し、空隙な
ど発生が抑制される効果がある。(9) In any one of the above items (1) to (5), each of the heat radiation fins has a property as a brazing material or a brazing material in a portion that is metallically joined to the heating element. When the cooling fin structure of the present invention is assembled, a brazing filler metal component is not required when the cooling fin structure of the present invention is assembled, and the number of components can be reduced. It has the effect of improving the brazing property in the part and suppressing the generation of voids.
【図１】 本発明の実施の形態１の一部断面図を含む部
分斜視図。FIG. 1 is a partial perspective view including a partial cross-sectional view of a first embodiment of the present invention.
【図２】 本発明の実施の形態２の一部断面図を含む部
分斜視図。FIG. 2 is a partial perspective view including a partial cross-sectional view of a second embodiment of the present invention.
【図３】 本発明の実施の形態３および実施の形態４の
一部断面図を含む部分斜視図。FIG. 3 is a partial perspective view including partial cross-sectional views of a third embodiment and a fourth embodiment of the present invention.
【図４】 本発明の実施の形態５の一部断面図を含む部
分斜視図。FIG. 4 is a partial perspective view including a partial cross-sectional view of a fifth embodiment of the present invention.
【図５】 本発明の実施の形態６および実施の形態７の
一部断面図を含む部分斜視図。FIG. 5 is a partial perspective view including a partial cross-sectional view of a sixth embodiment and a seventh embodiment of the present invention.
【図６】 本発明の実施の形態８の一部断面図を含む部
分斜視図。FIG. 6 is a partial perspective view including a partial sectional view of an eighth embodiment of the present invention.
【図７】 本発明の実施の形態９および実施の形態１０
の部分断面図。FIG. 7 is a ninth embodiment and a tenth embodiment of the present invention.
FIG.
【図８】 本発明の実施の形態１１の部分断面図。FIG. 8 is a partial sectional view of an eleventh embodiment of the present invention.
【図９】 従来の冷却フィン構造の概略断面図。FIG. 9 is a schematic sectional view of a conventional cooling fin structure.
【図１０】 従来の冷却フィン構造の概略断面図。FIG. 10 is a schematic sectional view of a conventional cooling fin structure.
１ 発熱体、１１ 嵌合用凹部、２ 放熱用フィン、２
１ 肩面、２２ 嵌合用凸部、２３ 嵌合用凹部、３
ろう材、５ 嵌合用部材。DESCRIPTION OF SYMBOLS 1 heating element, 11 recess for fitting, 2 fin for heat dissipation, 2
1 shoulder surface, 22 convex for fitting, 23 concave for fitting, 3
Brazing material, 5 fitting member.
Claims (9)
られた冷却フィン構造において、上記各放熱用フィンが
上記発熱体に対して所定の角度で且つ実質的に遊びなく
嵌合されるように、上記各放熱用フィンと上記発熱体の
いずれか一方は嵌合用凸部を、他方は上記嵌合用凸部が
嵌合される嵌合用凹部を有することを特徴とする冷却フ
ィン構造。1. A cooling fin structure in which a plurality of heat radiation fins are attached to a heat generating element, so that each of the heat radiation fins is fitted to the heat generating element at a predetermined angle and substantially without play. A cooling fin structure, wherein one of the heat radiation fins and the heating element has a fitting projection, and the other has a fitting recess into which the fitting projection is fitted.
上記嵌合用凸部と嵌合用凹部との嵌合部および／または
上記嵌合部の近傍において金属的に接合されたことを特
徴とする請求項1記載の冷却フィン構造。2. The heating element and the heat radiation fins,
2. The cooling fin structure according to claim 1, wherein the fitting convex portion and the fitting concave portion are metallically joined to each other and / or in the vicinity of the fitting portion.
の一端に設けられ、上記嵌合用凹部は、上記発熱体に設
けられたことを特徴とする請求項１または請求項２記載
の冷却フィン構造。3. The fitting convex portion is provided at one end of each of the heat radiation fins, and the fitting concave portion is provided at the heating element. Cooling fin structure.
れた冷却フィン構造において、上記各放熱用フィンは、
上記発熱体と上記各放熱用フィンに設けられた嵌合用凹
部に挿着された嵌合用部材により上記発熱体に対して所
定の角度で且つ実質的に遊びなく取付けられたことを特
徴とする冷却フィン構造。4. A cooling fin structure in which a plurality of heat dissipating fins are attached to a heating element, wherein each of the heat dissipating fins is
Cooling characterized in that the heating element and the heat-dissipating fins are fitted to the heat-dissipating fins at a predetermined angle and with substantially no play by a fitting member inserted into fitting recesses provided in the heat-dissipating fins. Fin structure.
記取付状態において金属的に接合されたことを特徴とす
る請求項４記載の冷却フィン構造。5. The cooling fin structure according to claim 4, wherein the heating element and each of the radiation fins are metallically joined in the mounted state.
とも一部の放熱用フィンは、隣接する放熱用フィンと連
結部を介して一体的に連結されたことを特徴とする請求
項1〜請求項５のいずれか一項記載の冷却フィン構造。6. The heat dissipation fins of at least a part of the plurality of heat dissipation fins are integrally connected to an adjacent heat dissipation fin via a connecting portion. Item 6. The cooling fin structure according to any one of items 5.
放熱用フィンの少なくとも表面層は互いに同種材料によ
り形成されており、上記両表面層はろう付けされたこと
を特徴とする請求項1〜請求項５のいずれか一項記載の
冷却フィン構造。7. The at least surface layer of the heating element and at least the surface layer of each of the heat dissipation fins are formed of the same kind of material, and the both surface layers are brazed. The cooling fin structure according to claim 5.
各放熱用フィンの少なくとも表面層は互に異種材料によ
り形成されており、上記両表面部はろう付けされたこと
を特徴とする請求項1〜請求項５のいずれか一項記載の
冷却フィン構造。8. The at least surface layer of the heating element and at least the surface layer of each of the heat radiation fins are made of mutually different materials, and the both surface portions are brazed. ~ The cooling fin structure according to claim 5.
属的に接合される部分がろう材またはろう材としての性
質を有する材料により形成されたことを特徴とする請求
項1〜請求項５のいずれか一項記載の冷却フィン構造。9. The heat dissipating fins, wherein a portion that is metallically joined to the heating element is formed of a brazing material or a material having a property as a brazing material. The cooling fin structure according to claim 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001258178A JP3732130B2 (en) | 2001-08-28 | 2001-08-28 | Cooling fin structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001258178A JP3732130B2 (en) | 2001-08-28 | 2001-08-28 | Cooling fin structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003075088A true JP2003075088A (en) | 2003-03-12 |
| JP3732130B2 JP3732130B2 (en) | 2006-01-05 |
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ID=19085745
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001258178A Expired - Lifetime JP3732130B2 (en) | 2001-08-28 | 2001-08-28 | Cooling fin structure |
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| Country | Link |
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| JP2013523458A (en) * | 2010-04-12 | 2013-06-17 | フェスタルピネ シュタール ゲーエムベーハー | Apparatus and method for adhesive bonding |
| WO2014125566A1 (en) * | 2013-02-12 | 2014-08-21 | 三菱電機株式会社 | Plate-type heat exchanger and refrigeration cycle device |
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2001
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| JP2013523458A (en) * | 2010-04-12 | 2013-06-17 | フェスタルピネ シュタール ゲーエムベーハー | Apparatus and method for adhesive bonding |
| WO2011148505A1 (en) * | 2010-05-28 | 2011-12-01 | トヨタ自動車株式会社 | Heat exchanger and method for manufacturing same |
| JPWO2011148505A1 (en) * | 2010-05-28 | 2013-07-25 | トヨタ自動車株式会社 | Heat exchanger and manufacturing method thereof |
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| WO2014125566A1 (en) * | 2013-02-12 | 2014-08-21 | 三菱電機株式会社 | Plate-type heat exchanger and refrigeration cycle device |
| JPWO2014125566A1 (en) * | 2013-02-12 | 2017-02-02 | 三菱電機株式会社 | Plate heat exchanger and refrigeration cycle apparatus |
| CN112247500A (en) * | 2020-10-10 | 2021-01-22 | 芜湖天锐捷精密电子设备有限公司 | Welding method of processing die for electronic equipment |
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