JP2002062068A - Flat plate type heat pipe - Google Patents
Flat plate type heat pipeInfo
- Publication number
- JP2002062068A JP2002062068A JP2000250249A JP2000250249A JP2002062068A JP 2002062068 A JP2002062068 A JP 2002062068A JP 2000250249 A JP2000250249 A JP 2000250249A JP 2000250249 A JP2000250249 A JP 2000250249A JP 2002062068 A JP2002062068 A JP 2002062068A
- Authority
- JP
- Japan
- Prior art keywords
- heat pipe
- flat
- flat plate
- plate type
- container
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
- F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
- F28D15/04—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes with tubes having a capillary structure
- F28D15/046—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes with tubes having a capillary structure characterised by the material or the construction of the capillary structure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
- F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
- F28D15/0233—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes the conduits having a particular shape, e.g. non-circular cross-section, annular
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、作動流体の蒸発
潜熱として熱を輸送するヒートパイプに関し、特に平板
状密閉容器の内面に厚肉部が設けられている平板型ヒー
トパイプに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat pipe for transporting heat as latent heat of vaporization of a working fluid, and more particularly to a flat heat pipe having a thick wall provided on an inner surface of a flat airtight container.
【０００２】[0002]
【従来の技術】平板型ヒートパイプは、中空平板構造の
コンテナによって密閉された空間部を形成し、その空間
部に空気などの非凝縮性ガスを脱気した状態で凝縮性の
流体を作動流体として封入したものである。この種のヒ
ートパイプは、表面が平坦になるので、熱交換対象物と
の接触面積が広くなり、その結果、熱伝達性能あるいは
熱交換性能が向上し、また冷却のための手段として使用
する場合には、広い放熱面積を確保することができるな
どの利点がある。2. Description of the Related Art A flat heat pipe has a closed space formed by a container having a hollow flat plate structure, and a condensable fluid is supplied with a working fluid while a non-condensable gas such as air is degassed in the space. It is what was enclosed as. This type of heat pipe has a flat surface, so the contact area with the heat exchange object is widened, resulting in improved heat transfer performance or heat exchange performance, and when used as a cooling means. Has such an advantage that a wide heat radiation area can be secured.
【０００３】その反面、平板型ヒートパイプは、密閉空
間部に凝縮性の流体のみを封入した構成であるから、外
部から入熱のない非動作状態あるいは冷却状態では、作
動流体が凝縮するために、密閉空間部の内部が高真空状
態になる。また反対に外部から多量に入熱があると、作
動流体が蒸発してその容積を増大させるから、密閉空間
部の内部圧力が高くなる。そのため、平板型ヒートパイ
プにあっては、上面や下面の表面積が広い部分の剛性が
低いために、非動作時や製造時にこの上面部分や下面部
分が窪む変形が生じたり、あるいは反対に動作時に上面
部分や下面部分が膨らむなどの変形が生じることがあ
る。On the other hand, the flat heat pipe has a structure in which only a condensable fluid is sealed in a closed space. Therefore, in a non-operating state or a cooling state where there is no heat input from the outside, the working fluid is condensed. Then, the inside of the sealed space becomes a high vacuum state. Conversely, when a large amount of heat is input from the outside, the working fluid evaporates and its volume increases, so that the internal pressure of the closed space increases. Therefore, in the flat heat pipe, the rigidity of the upper surface and the lower surface where the surface area is large is low, so that the upper surface and the lower surface are deformed to be depressed at the time of non-operation or at the time of manufacturing, or to the contrary. At times, deformation such as swelling of the upper surface portion and the lower surface portion may occur.
【０００４】このような不都合を解消するために、特開
平１１−２８７５７８号公報に記載された発明では、上
端部が開口した薄い容器の内部に、複数の柱状部を一体
に立設するとともに、ウイックとして機能する多孔質膜
を、その容器の内部に溶射により形成し、さらにその容
器の開口部を密閉した後、内部の空気などの気体を真空
脱気するとともに、水などの凝縮性の流体を作動流体と
して封入した平板状のヒートパイプを提案している。In order to solve such inconvenience, in the invention described in Japanese Patent Application Laid-Open No. H11-287578, a plurality of columnar portions are integrally erected inside a thin container having an open upper end. A porous film that functions as a wick is formed by thermal spraying inside the container, and the opening of the container is then sealed. Has been proposed as a flat heat pipe in which is sealed as a working fluid.
【０００５】[0005]
【発明が解決しようとする課題】上記の公報に記載され
た平板状のヒートパイプでは、面積の広い下面部分と上
面部分とを、複数の柱状部が連結した構造となるので、
内圧が低下することによる下面部分あるいは上面部分の
窪み変形や、動作時に内圧が高くなることによる下面部
分あるいは上面部分の膨らみ変形を防止することができ
る。しかしながら、それらの柱状部に連結されている下
面部分と上面部分とは、薄い平板部で構成され、剛性が
低いために、ＣＰＵなどの電子素子を平板型ヒートパイ
プに搭載あるいは密着させる際の押圧力によって、これ
ら上面部分や下面部分の中央部が変形するおそれが多分
にあった。The plate-shaped heat pipe described in the above publication has a structure in which a plurality of columnar portions are connected to a lower surface portion and an upper surface portion having a large area.
It is possible to prevent dent deformation of the lower surface portion or the upper surface portion due to a decrease in internal pressure, and swelling deformation of the lower surface portion or the upper surface portion due to an increase in the internal pressure during operation. However, the lower surface portion and the upper surface portion connected to the columnar portions are composed of thin flat plate portions and have low rigidity, so that when the electronic elements such as the CPU are mounted on or closely attached to the flat plate heat pipe. There was a possibility that the center of the upper surface portion and the lower surface portion was deformed by the pressure.
【０００６】この発明は、上記の技術的課題に着目して
なされたものであり、全体としての剛性が高く、しかも
熱的特性に優れた平板型ヒートパイプを提供することを
目的とするものである。The present invention has been made in view of the above technical problems, and has as its object to provide a flat plate heat pipe having high rigidity as a whole and excellent thermal characteristics. is there.
【０００７】[0007]
【課題を解決するための手段およびその作用】上記の目
的を達成するために、この発明は、所定の形状のコンテ
ナ（密閉容器）を構成している平板部の中央部、かつ内
面側に凸となる厚肉部を形成したことを特徴とするもの
である。具体的には、請求項１に記載の発明は、平板状
の密閉容器の内部に実質的に凝縮性流体のみを封入した
平板型ヒートパイプであって、前記平板状密閉容器がそ
の厚さ方向で対向する一対の平板部を備えるとともに、
一方の平板部の内面中央部に、前記密閉容器の内側に向
かって凸となる所定の形状の厚肉部が設けられているこ
とを特徴とする平板型ヒートパイプである。SUMMARY OF THE INVENTION In order to achieve the above object, the present invention is directed to a central portion of a flat plate portion forming a container (sealed container) having a predetermined shape, and a convex portion formed on the inner surface side. Characterized in that a thick portion is formed. Specifically, the invention according to claim 1 is a flat plate heat pipe in which substantially only a condensable fluid is sealed in a flat closed container, wherein the flat closed container has a thickness direction. With a pair of flat plate portions facing each other,
A flat-plate type heat pipe characterized in that a thick-walled portion having a predetermined shape protruding toward the inside of the closed container is provided at the center of the inner surface of one of the flat plates.
【０００８】したがって、請求項１の発明では、平板型
密閉容器の内面の中央部に厚肉部が設けられることによ
り、曲げモーメントが大きくなる箇所の剛性が高くな
り、その結果、電子素子などを密着させるための押圧力
による容器の変形を防ぐことができる。また、電子素子
が接触している部分の熱容量が大きくなるので、急激な
発熱があっても、温度の急上昇を抑制することができ
る。さらに、厚肉部が平板型密閉容器の内面に設けられ
ているので、装置全体としてのコンパクト化に貢献する
ことができる。Therefore, according to the first aspect of the present invention, since the thick portion is provided at the center of the inner surface of the flat-type closed container, the rigidity of the portion where the bending moment becomes large is increased, and as a result, the electronic element and the like are reduced. It is possible to prevent deformation of the container due to the pressing force for bringing the container into close contact. In addition, since the heat capacity of the portion where the electronic element is in contact is increased, even if there is sudden heat generation, a rapid rise in temperature can be suppressed. Further, since the thick portion is provided on the inner surface of the flat closed container, it is possible to contribute to downsizing of the entire apparatus.
【０００９】また、請求項２の発明は、請求項１の構成
において、前記厚肉部と該厚肉部に対向する他方の平板
部の内面とを連結する支柱が設けられていることを特徴
とする平板型ヒートパイプである。According to a second aspect of the present invention, in the configuration of the first aspect, a column connecting the thick portion and the inner surface of the other flat plate portion opposed to the thick portion is provided. Is a flat heat pipe.
【００１０】したがって、請求項２の発明では、厚肉部
に加えて支柱が設けられているので、容器の変形をさら
に確実に防止することができる。Therefore, according to the second aspect of the present invention, since the column is provided in addition to the thick portion, the deformation of the container can be more reliably prevented.
【００１１】さらに、請求項３の発明は、請求項１もし
くは２の構成において、前記支柱の外周面にウィック材
が設けられていることを特徴とする平板型ヒートパイプ
である。Further, the invention according to claim 3 is the flat type heat pipe according to claim 1 or 2, wherein a wick material is provided on an outer peripheral surface of the column.
【００１２】したがって、請求項３の発明では、支柱の
外周面にウィック材を設けることによって、動作時にお
ける作動流体の還流性を向上させることができる。Therefore, according to the third aspect of the present invention, by providing the wick material on the outer peripheral surface of the column, the recirculation of the working fluid during operation can be improved.
【００１３】そして、請求項４の発明は、請求項１ない
し３の構成において、前記厚肉部と前記支柱とが同じ材
質からなることを特徴とする平板型ヒートパイプであ
る。According to a fourth aspect of the present invention, there is provided a flat plate heat pipe according to any one of the first to third aspects, wherein the thick portion and the support are made of the same material.
【００１４】したがって、請求項４の発明では、厚肉部
と支柱とが同じ材質で形成されることによって、コンテ
ナの製造作業性が良好になる。Therefore, according to the fourth aspect of the present invention, since the thick portion and the support are formed of the same material, the workability of manufacturing the container is improved.
【００１５】[0015]
【発明の実施の形態】つぎに、図面を参照してこの発明
の平板型ヒートパイプの一具体例を説明する。先ず、容
器（コンテナ）１の構造について説明すると、図１にお
いて、上蓋体２は、銅などの熱伝導性の良好な金属から
なる薄板であって、図に示す例では、長方形状に形成さ
れている。また、この上蓋体２の内面のほぼ中央箇所に
厚肉部３が設けられている。この厚肉部３は上蓋体２と
一体に形成されている。また、この厚肉部３の頂面部４
が平坦な矩形状を成している。さらに、この上蓋体２と
同じ材質の本体部５が設けられている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, a specific example of a flat heat pipe according to the present invention will be described with reference to the drawings. First, the structure of the container (container) 1 will be described. In FIG. 1, the upper lid 2 is a thin plate made of a metal having good thermal conductivity such as copper, and is formed in a rectangular shape in the example shown in the drawing. ing. A thick portion 3 is provided at a substantially central portion of the inner surface of the upper lid 2. The thick portion 3 is formed integrally with the upper lid 2. Also, the top surface portion 4 of the thick portion 3
Has a flat rectangular shape. Further, a main body 5 made of the same material as the upper lid 2 is provided.
【００１６】この本体部５は、上蓋体２の形状を合わせ
た矩形状の平板体からなる底壁部６と、その底壁部６の
四つの辺（縁部）からそれぞれ立ち上がる平板状の側壁
部７とによって構成されている凹断面形状の部材であ
る。各側壁部７は、高さが一定となっていて、底壁部６
の長さおよび幅のいずれよりも小さく設定されている。
すなわち、本体部５は、その深さ以上の開口幅を有して
いる。The main body 5 has a bottom wall 6 made of a rectangular flat plate having the shape of the upper lid 2 and flat side walls rising from four sides (edges) of the bottom wall 6. A member having a concave cross-sectional shape constituted by the portion 7. Each side wall 7 has a constant height, and the bottom wall 6
Is set smaller than both the length and width.
That is, the main body 5 has an opening width equal to or greater than its depth.
【００１７】また、底壁部６の内面における両側に支柱
８が設けられ、この支柱８は、一例として円柱状に伸び
たコラム状の構造であり、本体部５の内部の深さ（すな
わち、上蓋体２と底壁部６との間の高さ）と同じ設定さ
れている。また、支柱８の両方の先端面９は、平坦面に
形成されている。さらに、この支柱８は、本体部５と同
じ材質である。Further, columns 8 are provided on both sides of the inner surface of the bottom wall 6, and the columns 8 have, for example, a columnar structure extending in a columnar shape, and have a depth (ie, (The height between the upper lid 2 and the bottom wall 6). Further, both tip surfaces 9 of the columns 8 are formed as flat surfaces. Further, the support 8 is made of the same material as the main body 5.
【００１８】さらに、底壁部６の内面における中央部に
支柱１０が設けられ、この支柱１０は、厚肉部３と同じ
材質であり、一例として円柱状に伸びたコラム状の構造
である。支柱１０の高さが、厚肉部３と底壁部６の内面
との間の深さと同じ設定されている。また、支柱１０の
両方の先端面１１は、平坦面に形成されている。Further, a column 10 is provided at a central portion of the inner surface of the bottom wall portion 6, and the column 10 is made of the same material as the thick portion 3, and has a columnar structure extending as a column, for example. The height of the column 10 is set to be the same as the depth between the thick portion 3 and the inner surface of the bottom wall portion 6. Further, both tip surfaces 11 of the pillar 10 are formed as flat surfaces.
【００１９】支柱８，１０の外周面には、ウィック材と
する多孔質層が形成されている。この多孔質層が形成さ
れている支柱８，１０は、毛細管圧力を生じさせて後述
する作動流体の還流性を向上させるとともに、容器１の
非動作時あるいは動作時における容器の変形を防止する
ためのものである。A porous layer serving as a wick material is formed on the outer peripheral surfaces of the columns 8 and 10. The columns 8 and 10 on which the porous layer is formed generate capillary pressure to improve the recirculation of a working fluid, which will be described later, and to prevent deformation of the container 1 during non-operation or operation. belongs to.
【００２０】この発明に係る平板型ヒートパイプの容器
１は、上記の各部材を固着して一体化することにより構
成されている。すなわち、本体部５の底壁部６の内面に
支柱８，１０を固着する。これは、例えば、本体部５が
銅製であり、支柱８，１０が銅微粒子を焼結して構成さ
れている場合には、支柱８，１０を底壁部６の内面に載
せた状態で所定温度まで加熱することにより、両者を焼
結により固着して一体化することができる。あるいは、
ロウ付けや、溶着などで固着しても良い。The flat plate type heat pipe container 1 according to the present invention is constructed by fixing and integrating the above-mentioned members. That is, the columns 8 and 10 are fixed to the inner surface of the bottom wall 6 of the main body 5. For example, when the main body 5 is made of copper and the columns 8 and 10 are formed by sintering copper fine particles, a predetermined state is set with the columns 8 and 10 placed on the inner surface of the bottom wall 6. By heating to the temperature, both can be fixed by sintering and integrated. Or,
It may be fixed by brazing or welding.
【００２１】ついで、本体部５における開口部に上蓋体
２を載せる。支柱８の高さが本体部５の内部の深さ（す
なわち、上蓋体２と底壁部６の内面との間の高さ）と同
じ設定し、また支柱８の先端面９が平坦面であるので、
支柱８の先端面９が上蓋体２の内面に密着する。また、
支柱１０の高さが厚肉部３と底壁部６の内面との高さと
同じ設定し、また支柱１０の先端面１１が平坦面である
ので、支柱１０の先端面１１が上蓋体２に形成されてい
る厚肉部３の内面に密着する。そして、これら上蓋体２
と厚肉部３と本体部５と支柱８，１０とを、溶接やロウ
付け、接着剤などの適宜の手段で接合する。Next, the upper lid 2 is placed on the opening of the main body 5. The height of the support 8 is set to be the same as the depth inside the main body 5 (that is, the height between the upper lid 2 and the inner surface of the bottom wall 6), and the tip end surface 9 of the support 8 is a flat surface. Because there is
The front end surface 9 of the support 8 closely contacts the inner surface of the upper lid 2. Also,
Since the height of the support 10 is set to be the same as the height of the thick portion 3 and the inner surface of the bottom wall 6 and the front end 11 of the support 10 is flat, the front end 11 of the support 10 is It is in close contact with the inner surface of the formed thick portion 3. And these upper lids 2
The thick part 3, the main body part 5, and the columns 8, 10 are joined by appropriate means such as welding, brazing, or an adhesive.
【００２２】こうして構成した容器１の縦断側面図を図
２に示してある。そして、図示しないが、容器１の側面
を構成している側壁部７の所定箇所に内部に連通する細
径管（ノズル）が取り付けられている。このノズルが容
器１の内部をヒートパイプ化するために利用される。具
体的には、ノズルを介して容器１の内部から空気などの
非凝縮性ガスが排気され、かつ水などの凝縮性の作動流
体が封入される。その後、ノズルが閉じられる。このよ
うな非凝縮性ガスの排気と作動流体の封入とのための方
法として、例えば加熱追出法、真空ポンプ法、ガス液化
法などの従来知られた方法を採用することができる。こ
うして、平板型ヒートパイプが完成される。すなわち、
この平板型ヒートパイプは、非動作時および動作時にお
ける上蓋体２と底壁部６との接近し合う方向への変形を
阻止する支柱８，１０が取り付けられるとともに、電子
素子などを密着させるための押圧力による変形を防止す
る厚肉部３が取り付けられている。FIG. 2 shows a vertical sectional side view of the container 1 thus constructed. Although not shown, a small-diameter pipe (nozzle) communicating with the inside is attached to a predetermined portion of the side wall 7 constituting the side surface of the container 1. This nozzle is used to heat the inside of the container 1 into a heat pipe. Specifically, a non-condensable gas such as air is exhausted from the inside of the container 1 through a nozzle, and a condensable working fluid such as water is sealed. Thereafter, the nozzle is closed. As a method for exhausting the non-condensable gas and filling the working fluid, for example, a conventionally known method such as a heating purge method, a vacuum pump method, and a gas liquefaction method can be employed. Thus, a flat heat pipe is completed. That is,
The flat plate heat pipes are provided with columns 8 and 10 for preventing deformation of the upper lid 2 and the bottom wall portion 6 in the approaching direction during non-operation and during operation, and for tightly attaching electronic elements and the like. A thick portion 3 for preventing deformation due to the pressing force is attached.
【００２３】したがって、上述したこの発明に係る平板
型ヒートパイプでは、上蓋体２の外部を加熱部としてそ
の中央部、つまり、厚肉部３に当たる場所にＣＰＵ（図
示せず）などの発熱体を取り付け、かつ本体部５の底壁
部６を放熱部とすれば、作動流体がその発熱体の熱によ
って加熱されて蒸発し、その蒸気が放熱部としての本体
部５の底壁部６の内側に流動し、かつ底壁部６の外部に
放熱して凝縮する。すなわち作動流体が主にその潜熱と
して熱を輸送する。また凝縮して液化した作動流体は、
支柱８，１０の外周面に形成されている多孔質層によっ
て吸い上げられ、発熱部となっている上蓋体２側に還流
する。Therefore, in the above-mentioned flat plate type heat pipe according to the present invention, a heating element such as a CPU (not shown) is provided at the center of the upper lid 2 as a heating section, that is, at a location corresponding to the thick section 3. If the bottom wall 6 of the main body 5 is mounted as a heat dissipating part, the working fluid is heated by the heat of the heat generating body and evaporates, and the vapor flows inside the bottom wall 6 of the main body 5 as a heat dissipating part. And condenses by radiating heat to the outside of the bottom wall 6. That is, the working fluid transports heat mainly as its latent heat. The working fluid that has condensed and liquefied
The water is sucked up by the porous layer formed on the outer peripheral surfaces of the columns 8 and 10, and is returned to the upper lid 2 side which is a heat generating portion.
【００２４】このように、この発明に係る平板型ヒート
パイプによれば、動作中に作動流体の蒸気は、放熱部
（本例では底壁面）で冷却され、ウィック材を有する支
柱を介して発熱部（本例では上蓋体）に還流することが
できるので、作動流体の還流性が向上する。また、発熱
部に厚肉部が形成されているので、電子素子の急激な温
度上昇を防止することができる。As described above, according to the flat heat pipe according to the present invention, during operation, the working fluid vapor is cooled by the heat radiating portion (the bottom wall surface in this example), and generates heat through the support having the wick material. Since it is possible to recirculate to the part (in this example, the upper lid), the recirculation of the working fluid is improved. Further, since the thick portion is formed in the heat generating portion, it is possible to prevent a rapid rise in the temperature of the electronic element.
【００２５】なお、上記の具体例では、長方形状の平板
型ヒートパイプの例を示したが、この発明は、上記の具
体例に限定されないのであって、正方形状などの適宜の
形状の平板型ヒートパイプに適用することができる。ま
た、この発明では、厚肉部が上蓋体と一体に形成される
ことに限定することがなく、それぞれ加工して接合して
も良い。またその厚肉部の形状は、上記の具体例に限定
されないのであって、頂面部が平坦面であればよい。さ
らに、支柱の形状が円柱形状に限定されることなく、楕
円形状などのウィックとして機能するとともに、容器の
支えとなるものであればよい。なお、厚肉部と支柱との
材質は、金属、セラミックス、プラスチックなどの熱伝
導性があるものであればよい。In the above-described specific example, an example of a rectangular flat heat pipe is shown. However, the present invention is not limited to the above-described specific example, and the present invention is not limited to this. It can be applied to heat pipes. Further, in the present invention, the thick portion is not limited to being formed integrally with the upper lid, but may be processed and joined. Further, the shape of the thick portion is not limited to the above specific example, and it is sufficient if the top surface is a flat surface. Further, the shape of the column is not limited to the columnar shape, but may be any as long as it functions as a wick such as an elliptical shape and can support the container. The material of the thick portion and the support may be any material having thermal conductivity, such as metal, ceramics, and plastic.
【００２６】[0026]
【発明の効果】以上説明したように、請求項１の発明に
よれば、平板型密閉容器の内面の中央部に厚肉部が設け
られることにより、曲げモーメントが大きくなる箇所の
剛性が高くなり、その結果、電子素子などを密着させる
ための押圧力による変形を防ぐことができる。また、電
子素子が接触している部分の熱容量が大きくなるので、
急激な発熱があっても、温度の急上昇を抑制することが
できる。さらに、厚肉部が平板型密閉容器の内面に設け
られているので、装置全体としてのコンパクト化に貢献
することができる。As described above, according to the first aspect of the present invention, since the thick portion is provided at the central portion of the inner surface of the flat closed container, the rigidity at the portion where the bending moment becomes large is increased. As a result, it is possible to prevent deformation due to the pressing force for bringing the electronic element or the like into close contact. Also, since the heat capacity of the part where the electronic element is in contact with increases,
Even if there is sudden heat generation, it is possible to suppress a sharp rise in temperature. Further, since the thick portion is provided on the inner surface of the flat closed container, it is possible to contribute to downsizing of the entire apparatus.
【００２７】また、請求項２の発明によれば、請求項１
の発明による効果に加え、厚肉部に加えて支柱が設けら
れているので、容器の変形をさらに確実に防止すること
ができる。Further, according to the invention of claim 2, according to claim 1
In addition to the effect of the invention, the support is provided in addition to the thick portion, so that the deformation of the container can be more reliably prevented.
【００２８】さらに、請求項３の発明によれば、請求項
１および２の発明による効果に加え、支柱の外周面にウ
ィック材を設けることによって、動作時における作動流
体の還流性を向上させることができる。According to the third aspect of the present invention, in addition to the effects of the first and second aspects of the present invention, by providing a wick material on the outer peripheral surface of the column, the recirculation of the working fluid during operation is improved. Can be.
【００２９】そして、請求項４の発明によれば、請求項
１ないし３の発明による効果に加え、厚肉部と支柱とが
同じ材質で形成されることによって、コンテナの製造作
業性が良好になる。According to the fourth aspect of the invention, in addition to the effects of the first to third aspects, since the thick portion and the support are formed of the same material, the workability of manufacturing the container is improved. Become.
【図１】 この発明に係る平板型ヒートパイプの一例に
おける容器を分解して示す斜視図である。FIG. 1 is an exploded perspective view showing a container in an example of a flat heat pipe according to the present invention.
【図２】 この発明に係る平板型ヒートパイプの一例を
示す縦断側面図である。FIG. 2 is a longitudinal sectional side view showing an example of a flat plate heat pipe according to the present invention.
１…容器、 ２…上蓋体、 ３…厚肉部、 ５…本体
部、 ６…底壁部、 １０…支柱。DESCRIPTION OF SYMBOLS 1 ... Container, 2 ... Top lid, 3 ... Thick part, 5 ... Body part, 6 ... Bottom wall part, 10 ... Support.
フロントページの続き (72)発明者 斎藤 祐士 東京都江東区木場一丁目５番１号 株式会 社フジクラ内 (72)発明者 タン ニューエン 東京都江東区木場一丁目５番１号 株式会 社フジクラ内Continued on the front page (72) Inventor Yuji Saito 1-5-1, Kiba, Koto-ku, Tokyo Inside Fujikura Co., Ltd. (72) Inventor Tan Nuen 1-5-1, Kiba, Koto-ku, Tokyo Inside Fujikura Co., Ltd.
Claims (4)
性流体のみを封入した平板型ヒートパイプにおいて、 前記平板状密閉容器がその厚さ方向で対向する一対の平
板部を備えるとともに、一方の平板部の内面中央部に、
前記密閉容器の内側に向けて凸となる所定の形状の厚肉
部が設けられていることを特徴とする平板型ヒートパイ
プ。1. A flat heat pipe in which substantially only a condensable fluid is sealed inside a flat airtight container, wherein the flat airtight container includes a pair of flat plates facing each other in a thickness direction thereof. At the center of the inner surface of one flat part,
A flat heat pipe, wherein a thick wall portion having a predetermined shape protruding toward the inside of the closed container is provided.
平板部の内面とを連結する支柱が設けられていることを
特徴とする請求項１に記載の平板型ヒートパイプ。2. The flat plate heat pipe according to claim 1, further comprising a column connecting the thick portion and an inner surface of the other flat portion facing the thick portion.
れていることを特徴とする請求項１もしくは２に記載の
平板型ヒートパイプ。3. The flat heat pipe according to claim 1, wherein a wick material is provided on an outer peripheral surface of the column.
なることを特徴とする請求項１ないし３のいずれかに記
載の平板型ヒートパイプ。4. The flat heat pipe according to claim 1, wherein the thick portion and the support are made of the same material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000250249A JP2002062068A (en) | 2000-08-21 | 2000-08-21 | Flat plate type heat pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000250249A JP2002062068A (en) | 2000-08-21 | 2000-08-21 | Flat plate type heat pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002062068A true JP2002062068A (en) | 2002-02-28 |
Family
ID=18739857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000250249A Pending JP2002062068A (en) | 2000-08-21 | 2000-08-21 | Flat plate type heat pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002062068A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130168054A1 (en) * | 2012-01-04 | 2013-07-04 | Asia Vital Components Co., Ltd. | Heat pipe and method for manufacturing the same |
| US9417015B2 (en) | 2012-02-22 | 2016-08-16 | Thermal Corp. | Heat exchanger backing plate and method of assembling same |
| CN112218481A (en) * | 2019-07-10 | 2021-01-12 | 汎海科技股份有限公司 | Heat dissipation plate, manufacturing method thereof and electronic device with heat dissipation plate |
-
2000
- 2000-08-21 JP JP2000250249A patent/JP2002062068A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130168054A1 (en) * | 2012-01-04 | 2013-07-04 | Asia Vital Components Co., Ltd. | Heat pipe and method for manufacturing the same |
| US9417015B2 (en) | 2012-02-22 | 2016-08-16 | Thermal Corp. | Heat exchanger backing plate and method of assembling same |
| CN112218481A (en) * | 2019-07-10 | 2021-01-12 | 汎海科技股份有限公司 | Heat dissipation plate, manufacturing method thereof and electronic device with heat dissipation plate |
| US11617283B2 (en) * | 2019-07-10 | 2023-03-28 | Therlect Co., Ltd. | Heat dissipating plate, manufacturing method therefor and electronic device having the same |
| CN112218481B (en) * | 2019-07-10 | 2023-07-14 | 汎海科技股份有限公司 | Radiating plate, manufacturing method thereof and electronic device with radiating plate |
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