JP2005116839A - Heat conductor, cooling device, electronic apparatus, and method for manufacturing heat conductor - Google Patents

Heat conductor, cooling device, electronic apparatus, and method for manufacturing heat conductor Download PDF

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JP2005116839A
JP2005116839A JP2003350088A JP2003350088A JP2005116839A JP 2005116839 A JP2005116839 A JP 2005116839A JP 2003350088 A JP2003350088 A JP 2003350088A JP 2003350088 A JP2003350088 A JP 2003350088A JP 2005116839 A JP2005116839 A JP 2005116839A
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heat
heat conductor
fiber
bodies
fibrous
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Toshio Hashimoto
寿雄 橋本
Ichiro Koyanagi
一郎 小柳
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Sony Corp
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Sony Corp
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/0001—Technical content checked by a classifier
    • H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00

Abstract

<P>PROBLEM TO BE SOLVED: To provide a heat conductor reduced at its size, weight and thickness and capable of efficiently discharging heat, a cooling device using the heat conductor, an electronic apparatus, and a method for manufacturing the heat conductor. <P>SOLUTION: Since fibers 2 for conducting heat in the vertical direction (Z direction) are arrayed in the horizontal direction (X direction), the heat conductor 10 can be formed like a three-dimensional shape. Since the fibers 2 and resin materials are used, the weight of the heat conductor 10 can be reduced as compared with a case using metals or the like and the fibers 2, and the resin materials are suited also to the miniaturization and thinning of the heat conductor 10. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は、電子部品等の発熱体から発せられる熱を伝導させる熱伝導体、この熱伝導体を用いた冷却装置、電子機器及び熱伝導体の製造方法に関する。   The present invention relates to a heat conductor that conducts heat generated from a heating element such as an electronic component, a cooling device using the heat conductor, an electronic device, and a method for manufacturing the heat conductor.

近年、ＣＰＵ（Central Processing Unit）やＭＰＵ（Micro Processing Unit）等の動作周波数の高クロック化やプロセスのナノミクロン化によって、その発熱量は増加しつつある。現在では、このような発熱体の放熱処理のために、例えば発熱体にヒートスプレッダーや放熱フィン等の熱伝導材料を接触させる方法が一般的となっている。このような放熱フィン等の熱伝導材料として、主に、熱伝導率がそれぞれ２２０[Ｗ／（ｍ・Ｋ）]、３６０[Ｗ／（ｍ・Ｋ）]であるアルミニウムや銅が用いられている。また、熱伝導材料として、高熱伝導性の粉末を電気絶縁性の膜で被覆したものがあり、例えば粉末として金属粉末や炭素粉末等を用いている（例えば、特許文献１参照。）。
特開平８−１８３８７５号公報（段落[０００４]、[０００５]） 2. Description of the Related Art In recent years, the amount of generated heat has been increasing due to the increase in operating frequency of CPUs (Central Processing Units), MPUs (Micro Processing Units), and the like, and the use of nano-micron processes. At present, a method of bringing a heat conductive material such as a heat spreader or a heat radiating fin into contact with the heat generating element is generally used for such a heat dissipating process of the heat generating element. As the heat conducting material such as the heat radiating fin, aluminum or copper having a thermal conductivity of 220 [W / (m · K)] or 360 [W / (m · K)] is mainly used. Yes. In addition, as a heat conductive material, there is a material in which a highly heat conductive powder is covered with an electrically insulating film, and for example, a metal powder, a carbon powder, or the like is used as the powder (see, for example, Patent Document 1).
JP-A-8-183875 (paragraphs [0004] and [0005])

しかしながら、発熱体の発熱量は増加の一途をたどっているため、金属製の放熱フィン等を用いたとしてもそれだけでは能力不足であり、さらに効率よく放熱する必要がある。より放熱効率を高めるために面積や体積を大きくすることが考えられるが、金属系の部材を用いると重量が重くなってしまうという問題がある。さらに、これらの熱伝導部材を成形機で成形する場合、オーバーフロー等によりゲート処理を行う必要があり、捨てる部分が多いことや、押出し材や切削部品を生成する際に出る削り粉等が環境に悪いという問題もある。   However, since the heat generation amount of the heating element is steadily increasing, even if a metal radiating fin or the like is used, it is insufficient in its capacity and it is necessary to radiate heat more efficiently. Although it is conceivable to increase the area and volume in order to further improve the heat dissipation efficiency, there is a problem that the weight becomes heavy if a metal member is used. Furthermore, when these heat conductive members are molded with a molding machine, it is necessary to perform gate treatment due to overflow, etc., and there are many parts to be discarded, and the shavings that are produced when producing extruded materials and cutting parts are in the environment. There is also the problem of being bad.

また、放熱部材の小型化、軽量化のために上記特許文献１に記載の技術のように熱伝導材料として粉末等を用いることも考えられる。しかしながら、単に樹脂製の放熱部材にその粉末を混合するという方法では、放熱効率を向上させることは難しい。   It is also conceivable to use powder or the like as the heat conducting material as in the technique described in Patent Document 1 in order to reduce the size and weight of the heat dissipation member. However, it is difficult to improve the heat dissipation efficiency by simply mixing the powder with a resin heat dissipation member.

以上のような事情に鑑み、本発明の目的は、小型化、軽量化または薄型化に優れ、効率よく放熱処理することができる熱伝導体、この熱伝導体を用いた冷却装置、電子機器及び熱伝導体の製造方法を提供することにある。   In view of the circumstances as described above, an object of the present invention is to provide a heat conductor that is excellent in miniaturization, weight reduction, or thickness reduction and that can efficiently dissipate heat, a cooling device that uses this heat conductor, an electronic device, and It is providing the manufacturing method of a heat conductor.

上記目的を達成するため、本発明に係る熱伝導体は、発熱体から発せられる熱を第１の方向に伝導させるように該第１の方向に連続して設けられた繊維材を有し、該第１の方向とは異なる第２の方向に配列された複数の繊維体と、配列された前記複数の繊維体を連結する樹脂材とを具備する。   In order to achieve the above object, a heat conductor according to the present invention has a fiber material continuously provided in the first direction so as to conduct heat generated from the heat generator in the first direction, A plurality of fibrous bodies arranged in a second direction different from the first direction; and a resin material that connects the plurality of arranged fibrous bodies.

本発明において、例えば繊維１本であってもその繊維の長手方向に沿ったものは「連続」の概念に含められ、繊維１本１本に縒りがかけられた繊維材も「連続」の概念に含められる。あるいは、繊維が織成されたものも「連続」の概念に含められる。これらのように繊維材が連続して一体的となったものを１つの繊維体とする。また、発熱体としては、例えばＩＣチップや抵抗等の電子部品、あるいは放熱フィン等が挙げられるが、これらに限られず発熱するものなら何でもよい。以下、同様である。   In the present invention, for example, even one fiber along the longitudinal direction of the fiber is included in the concept of “continuous”, and the fiber material in which each fiber is twisted is also considered as the concept of “continuous”. Included in Alternatively, woven fibers are also included in the concept of “continuous”. A single fiber body is formed by continuously integrating the fiber materials as described above. Examples of the heating element include an electronic component such as an IC chip and a resistor, a heat radiating fin, and the like. However, the heating element is not limited thereto, and any heating element may be used. The same applies hereinafter.

本発明では、繊維材や樹脂材を用いているため金属等に比べ軽量化することができ、しかも小型化、薄型化に適している。ここで、一般的に繊維材は２次元的に織成されているため、その２次元での平面内で熱伝導させることは可能であると考えられるが、３次元的に織成することは困難である。しかしながら本発明によれば、第１の方向に熱伝導させる繊維体を第２の方向で配列させているので、熱伝導体を３次元的な形状で形成することができ、熱伝導体全体で発熱体の熱を伝導させ、効率よく放熱処理することができる。すなわち、本発明は軽量化等を達成しつつ、効率よく熱を伝導させることができる。   In the present invention, since a fiber material or a resin material is used, the weight can be reduced as compared with metal or the like, and it is suitable for downsizing and thinning. Here, since the fiber material is generally woven two-dimensionally, it is considered possible to conduct heat in a two-dimensional plane, but woven three-dimensionally Have difficulty. However, according to the present invention, since the fiber bodies that conduct heat in the first direction are arranged in the second direction, the heat conductor can be formed in a three-dimensional shape, The heat of the heating element can be conducted to efficiently dissipate heat. That is, the present invention can efficiently conduct heat while achieving weight reduction and the like.

繊維材として、例えばカーボン繊維、カーボンナノチューブ等を用いることで高熱伝導性を確保することができる。   As the fiber material, for example, high thermal conductivity can be ensured by using carbon fiber, carbon nanotube, or the like.

本発明の一の形態によれば、前記樹脂材の中に含まれ、金属、カーボン材、またはグラファイト材をさらに具備する。これにより、さらに高い熱伝導性を確保することができる。特に配向性の強い単結晶構造を持つグラファイト材を用いることが好ましい。高熱伝導性を有するセラミック材も樹脂材の中に含まれていてもよい。金属としては、例えば銅、アルミ等が挙げられ、金属粉や金属フィラーであってもよい。   According to one form of this invention, it is contained in the said resin material and further comprises a metal, a carbon material, or a graphite material. Thereby, higher thermal conductivity can be ensured. In particular, it is preferable to use a graphite material having a highly oriented single crystal structure. A ceramic material having high thermal conductivity may also be included in the resin material. Examples of the metal include copper and aluminum, and may be metal powder or a metal filler.

本発明の一の形態によれば、前記繊維体は、それぞれ該繊維体の長手方向とほぼ直行する方向に熱を伝導させるように長尺の板状に形成され、かつ、当該板状の繊維体の表面に対してほぼ垂直方向に複数配列されている。これにより、熱伝導体を例えば板状に近い形状あるいは直方体形状に近い形状とすることができ、この場合、その熱伝導体の表面から裏面にかけて効率よく熱伝導させることができる。   According to an aspect of the present invention, each of the fibrous bodies is formed in a long plate shape so as to conduct heat in a direction substantially perpendicular to the longitudinal direction of the fibrous body, and the plate-like fibers. A plurality are arranged in a direction substantially perpendicular to the surface of the body. Thereby, a heat conductor can be made into the shape close | similar to plate shape or a rectangular parallelepiped shape, for example, and in this case, it can be made to thermally conduct efficiently from the surface to the back surface of the heat conductor.

本発明の一の形態によれば、前記繊維体は、それぞれ該繊維体の長手方向に熱を伝導させるように棒状に形成され、かつ、当該繊維体の長手方向にほぼ直行する方向に複数配列されている。樹脂材は、例えば複数の繊維体のそれぞれを被覆する被覆材であってもよい。繊維体の配列方向は２次元的であってもかまわない。このように２次元的に繊維体を配列させることにより、例えば熱伝導体を直方体に近い形状または板状に近い形状とすることができる。したがって、この場合、その熱伝導体の表面から裏面にかけて効率よく熱伝導させることができる。   According to an aspect of the present invention, each of the fibrous bodies is formed in a rod shape so as to conduct heat in the longitudinal direction of the fibrous bodies, and a plurality of the fibrous bodies are arranged in a direction substantially perpendicular to the longitudinal direction of the fibrous bodies. Has been. The resin material may be a covering material that covers each of the plurality of fibrous bodies, for example. The arrangement direction of the fiber bodies may be two-dimensional. By arranging the fiber bodies two-dimensionally in this way, for example, the heat conductor can be formed into a shape close to a rectangular parallelepiped or a shape close to a plate shape. Therefore, in this case, heat can be efficiently conducted from the front surface to the back surface of the heat conductor.

本発明の一の形態によれば、前記発熱体から発せられる熱を前記第２の方向を含む面内で伝導させる熱伝導板をさらに具備する。熱伝導板としては、例えば銅やアルミ等の金属板、金属箔、カーボン繊維やカーボンナノチューブをシート状にしたもの、または、グラファイトシート等が挙げられる。これにより、第１の方向に熱伝導させるだけでなく、例えば熱伝導板を所定の部位に配置すればその部位で第２の方向を含む面内で熱伝導させることができる。これによりさらに効率よく熱伝導させることができ、放熱効率を向上させることができる。   According to one form of this invention, it further comprises the heat conductive board which conducts the heat | fever emitted from the said heat generating body within the surface containing the said 2nd direction. Examples of the heat conductive plate include a metal plate such as copper and aluminum, a metal foil, a sheet made of carbon fiber or carbon nanotube, or a graphite sheet. As a result, not only heat conduction in the first direction but also, for example, if a heat conduction plate is arranged at a predetermined part, heat conduction can be carried out in a plane including the second direction at that part. As a result, the heat can be more efficiently conducted and the heat dissipation efficiency can be improved.

本発明の一の形態によれば、前記繊維体は、それぞれ該繊維体の長手方向に熱を伝導させるように棒状に形成され、前記樹脂材は、粘着性を有するシート状に形成され、かつ、配列された前記複数の繊維体を挟むように設けられている。本発明において、樹脂材が、例えば配列された複数の繊維体を挟むように積層して複数設けられていてもよい。この場合、例えば熱伝導体を直方体に近い形状または板状に近い形状とすることができ、その熱伝導体の一方の側面からこれに対向する側面に向かう方向で、すなわち繊維体の長手方向で効率よく熱伝導させることができる。あるいは、例えば１枚の樹脂材が、配列された複数の繊維体を挟むようにロール状に設けられていてもよい。   According to one aspect of the present invention, each of the fibrous bodies is formed in a rod shape so as to conduct heat in the longitudinal direction of the fibrous body, the resin material is formed in an adhesive sheet shape, and The plurality of arranged fibrous bodies are provided so as to sandwich the plurality of fibrous bodies. In the present invention, a plurality of resin materials may be provided by being laminated so as to sandwich a plurality of arranged fibrous bodies, for example. In this case, for example, the heat conductor can have a shape close to a rectangular parallelepiped or a plate shape, and in a direction from one side surface of the heat conductor to a side surface facing the heat conductor, that is, in the longitudinal direction of the fiber body It is possible to conduct heat efficiently. Alternatively, for example, one resin material may be provided in a roll shape so as to sandwich a plurality of arranged fiber bodies.

本発明の一の形態によれば、前記繊維体がそれぞれ配置される位置によって熱伝導率が異なるように構成されている。これにより、例えば熱伝導体のうち所望の部位のみを他の部位と比較して熱伝導率を高くしたり低くしたりすることができる。したがって、効率的に熱伝導することができ、熱伝導体の選択性を向上させることができる。   According to one form of this invention, it is comprised so that thermal conductivity may differ with the position where the said fiber body is each arrange | positioned. Accordingly, for example, only a desired portion of the thermal conductor can be increased or decreased as compared with other portions. Therefore, heat can be efficiently conducted and the selectivity of the heat conductor can be improved.

本発明の他の観点に係る熱伝導体は、発熱体から発せられる熱を第１の方向に伝導させるように該第１の方向に連続して設けられ、該第１の方向とは異なる第２の方向に配列されたシート状の熱伝導部材と、配列された前記複数の熱伝導体を連結する樹脂材とを具備する。   A heat conductor according to another aspect of the present invention is provided continuously in the first direction so as to conduct heat generated from the heating element in the first direction, and is different from the first direction. A sheet-like heat conducting member arranged in the direction of 2 and a resin material connecting the plurality of arranged heat conductors.

本発明では、シート状の熱伝導部材や樹脂材を用いているため、軽量化及び薄型化を達成しつつ、熱伝導体全体で発熱体の熱を伝導させ、効率よく放熱処理することができる。シート状の熱伝導部材として、例えば、繊維シートが挙げられる。繊維シートに用いられる繊維材として例えば上記のようなカーボン繊維、カーボンナノチューブ等が挙げられる。特に、グラファイトシートを用いれば、非常に高い熱伝導率を確保することができる。   In the present invention, since a sheet-like heat conductive member or a resin material is used, the heat of the heating element can be conducted through the entire heat conductor and efficiently radiated while achieving a reduction in weight and thickness. . An example of the sheet-like heat conductive member is a fiber sheet. Examples of the fiber material used for the fiber sheet include carbon fibers and carbon nanotubes as described above. In particular, if a graphite sheet is used, a very high thermal conductivity can be secured.

本発明の他の観点に係る熱伝導体は、複数設けられ、発熱体から発せられる熱を第１の方向に伝導させるように該第１の方向に連続して設けられた繊維材を有する板状の繊維体と、前記複数の繊維体を前記第１の方向とは異なる第２の方向に配列させて連結する樹脂材とを具備する。   A plurality of thermal conductors according to another aspect of the present invention are provided, and a plate having a fiber material provided continuously in the first direction so as to conduct heat generated from the heating element in the first direction. And a resin material that connects and connects the plurality of fiber bodies in a second direction different from the first direction.

本発明の他の観点に係る熱伝導体は、複数設けられ、発熱体から発せられる熱を長手方向に伝導させるように該長手方向に連続して設けられた繊維材を有する棒状の繊維体と、前記複数の繊維体を前記長手方向とは異なる方向に配列させて連結する樹脂材とを具備する。   A plurality of heat conductors according to another aspect of the present invention are provided, and a rod-like fiber body having a fiber material continuously provided in the longitudinal direction so as to conduct heat generated from the heating element in the longitudinal direction; And a resin material that connects the plurality of fibrous bodies in a direction different from the longitudinal direction.

本発明に係る冷却装置は、前記発熱体から発せられる熱を第１の方向に伝導させるように該第１の方向に連続して設けられた繊維材を有し、該第１の方向とは異なる第２の方向に配列された複数の繊維体と、配列された前記複数の繊維体を連結する樹脂材とを有する熱伝導体を備えた。   The cooling device according to the present invention has a fiber material continuously provided in the first direction so as to conduct heat generated from the heating element in the first direction. What is the first direction? A heat conductor having a plurality of fiber bodies arranged in different second directions and a resin material that connects the plurality of arranged fiber bodies is provided.

本発明において、冷却装置としては、例えば空冷式の冷却装置等が挙げられる。本発明によれば、冷却装置の小型化、軽量化または薄型化を図ることができ、また高効率で放熱処理を行うことができる冷却装置を提供することができる。   In the present invention, examples of the cooling device include an air cooling type cooling device. ADVANTAGE OF THE INVENTION According to this invention, the cooling device which can achieve size reduction, weight reduction, or thickness reduction of a cooling device, and can perform a thermal radiation process with high efficiency can be provided.

本発明に係る電子機器は、発熱体と、前記発熱体から発せられる熱を第１の方向に伝導させるように該第１の方向に連続して設けられた繊維材を有し、該第１の方向とは異なる第２の方向に配列された複数の繊維体と、配列された前記複数の繊維体を連結する樹脂材とを具備する。   An electronic apparatus according to the present invention includes a heating element and a fiber material continuously provided in the first direction so as to conduct heat generated from the heating element in the first direction. A plurality of fiber bodies arranged in a second direction different from the direction of the resin, and a resin material connecting the plurality of arranged fiber bodies.

本発明において、電子機器としては、例えばコンピュータ、ＰＤＡ（Personal Digital Assistance）、ファンによる冷却装置、その他電化製品等が挙げられる。本発明では、熱伝導体の薄型化、軽量化等を達成しつつ第１の方向に熱伝導させる繊維体を第２の方向で配列させているので、効率よく放熱処理することができる。その結果、電子機器の小型化、軽量化または薄型化を図ることができ、また高効率で放熱処理を行うことができる電子機器を提供することができる。   In the present invention, examples of the electronic device include a computer, a PDA (Personal Digital Assistance), a cooling device using a fan, and other electrical appliances. In the present invention, since the fiber bodies that conduct heat in the first direction are arranged in the second direction while achieving reduction in thickness and weight of the heat conductor, the heat dissipation treatment can be performed efficiently. As a result, the electronic device can be reduced in size, weight, or thickness, and an electronic device that can perform heat dissipation with high efficiency can be provided.

本発明に係る熱伝導体の製造方法は、発熱体から発せられる熱を第１の方向に伝導させるための繊維材を切断することで、該繊維材を複数の繊維体に分割する工程と、分割された前記複数の繊維体を前記第１の方向とは異なる第２の方向に配列させるために、当該複数の繊維体を樹脂材で連結させる工程とを具備する。   The manufacturing method of the heat conductor according to the present invention includes a step of cutting the fiber material for conducting heat generated from the heating element in the first direction, thereby dividing the fiber material into a plurality of fiber bodies, Connecting the plurality of fiber bodies with a resin material in order to arrange the plurality of divided fiber bodies in a second direction different from the first direction.

本発明では、上記のように、繊維材は３次元的に織成することは困難である。したがって、２次元的に織成された繊維材を例えばほぼ等間隔に分割し、それを第２の方向に配列させることにより、熱伝導体を３次元的な形状に形成することができる。その結果、熱伝導体全体で効率よく熱伝導させることができる。   In the present invention, as described above, it is difficult to weave the fiber material three-dimensionally. Therefore, the heat conductor can be formed into a three-dimensional shape by, for example, dividing the two-dimensionally woven fiber material into substantially equal intervals and arranging them in the second direction. As a result, it is possible to efficiently conduct heat throughout the heat conductor.

以上のように、本発明によれば、小型化または軽量化に優れ、効率よく放熱処理することができる。   As described above, according to the present invention, it is excellent in miniaturization or weight reduction, and heat dissipation can be performed efficiently.

以下、本発明の実施の形態を図面に基づき説明する。   Hereinafter, embodiments of the present invention will be described with reference to the drawings.

図１は、本発明の第１の実施の形態に係る熱伝導体を示す斜視図である。図２は図１におけるＡ−Ａ線断面図である。   FIG. 1 is a perspective view showing a heat conductor according to the first embodiment of the present invention. 2 is a cross-sectional view taken along line AA in FIG.

この熱伝導体１０は、複数の繊維体２を所定の方向に配列されて構成されている。図３は複数の繊維体２のうち１つを示す斜視図である。図４は繊維体２の拡大図であり、繊維体２は例えば繊維材３が織成されて構成されている。繊維材３の織成方法は問わない。また繊維材３は織成されていなくても一体的になっていればよい。このように繊維体２が構成されることによって、繊維体２は縦方向（Ｚ方向）に熱を伝導する。繊維体２は図１に示すように熱伝導の方向とは異なる方向（Ｘ方向）に複数配列させられ、例えば樹脂材として熱可塑性樹脂５で連結されている。熱可塑性樹脂５としては例えばポリイミド等を用いる。   The heat conductor 10 is configured by arranging a plurality of fiber bodies 2 in a predetermined direction. FIG. 3 is a perspective view showing one of the plurality of fiber bodies 2. FIG. 4 is an enlarged view of the fiber body 2, and the fiber body 2 is configured by, for example, a fiber material 3 being woven. The weaving method of the fiber material 3 is not ask | required. Moreover, the fiber material 3 should just be integrated even if it is not woven. By configuring the fibrous body 2 in this way, the fibrous body 2 conducts heat in the longitudinal direction (Z direction). As shown in FIG. 1, a plurality of the fibrous bodies 2 are arranged in a direction (X direction) different from the direction of heat conduction, and are connected by, for example, a thermoplastic resin 5 as a resin material. For example, polyimide or the like is used as the thermoplastic resin 5.

繊維材３として、例えばカーボン繊維、カーボンナノチューブ等を用いることで高熱伝導性を確保することができる。この場合、熱伝導率を６００〜８００[Ｗ／（ｍ・Ｋ）]とすることができ、銅の熱伝導率３００〜４００[Ｗ／（ｍ・Ｋ）]の約１．５〜２倍とすることができる。   By using, for example, carbon fibers, carbon nanotubes or the like as the fiber material 3, high thermal conductivity can be ensured. In this case, the thermal conductivity can be 600 to 800 [W / (m · K)], which is about 1.5 to 2 times the thermal conductivity of copper 300 to 400 [W / (m · K)]. It can be.

また、樹脂材５の中に、金属、カーボン材、またはグラファイト材、あるいは高熱伝導性のセラミック等を含めるようにしてもよい。これにより、さらに高い熱伝導性を確保することができる。特に配向性の強い単結晶構造を持つグラファイト材を用いることが好ましい。   Further, the resin material 5 may include a metal, a carbon material, a graphite material, a ceramic having a high thermal conductivity, or the like. Thereby, higher thermal conductivity can be ensured. In particular, it is preferable to use a graphite material having a highly oriented single crystal structure.

このように構成された熱伝導体１０の作用について説明する。熱伝導体１０の表面１０ａに例えば図示しない発熱体が接触させられた状態で、当該発熱体が熱を発すると、表面１０ａから裏面１０ｂにかけて、すなわちＺ方向に熱を伝導させる。例えば、図示しないが、裏面１０ｂにヒートシンク（例えば放熱フィン）が接していればそのヒートシンクに当該熱を伝導させることができる。   The operation of the heat conductor 10 configured as described above will be described. For example, when a heating element (not shown) is in contact with the surface 10a of the thermal conductor 10, the heating element conducts heat from the front surface 10a to the back surface 10b, that is, in the Z direction. For example, although not shown, if a heat sink (for example, a radiation fin) is in contact with the back surface 10b, the heat can be conducted to the heat sink.

本実施の形態では、繊維材３や樹脂材５を用いているため金属等に比べ軽量化することができ、しかも小型化、薄型化に適している。ここで、一般的に繊維材は２次元的に織成されているため、その２次元での平面内で熱伝導させることは可能であると考えられるが、３次元的に織成することは困難である。しかしながら本実施の形態によれば、図２中、縦方向に熱伝導させる繊維体２を横方向で配列させているので、熱伝導体１０を３次元的な形状で形成することができる。すなわち、熱伝導体１０を例えば板状に近い形状あるいは直方体形状に近い形状とすることができ、熱伝導体１０の表面から裏面にかけて全体的に効率よく熱伝導させることができる。   In the present embodiment, since the fiber material 3 and the resin material 5 are used, the weight can be reduced as compared with metal or the like, and it is suitable for downsizing and thinning. Here, since the fiber material is generally woven two-dimensionally, it is considered possible to conduct heat in a two-dimensional plane, but woven three-dimensionally Have difficulty. However, according to the present embodiment, since the fiber bodies 2 that conduct heat in the vertical direction are arranged in the horizontal direction in FIG. 2, the heat conductor 10 can be formed in a three-dimensional shape. That is, the heat conductor 10 can be formed into, for example, a shape close to a plate shape or a shape close to a rectangular parallelepiped shape, and heat can be efficiently conducted from the front surface to the back surface of the heat conductor 10 as a whole.

図５を参照してこのような熱伝導体１０の製造方法について説明する。図５（ａ）は繊維材の断面図であり、図５（ｂ）はその繊維材の平面図である。例えば平板状の繊維材１８をＣ−Ｃ線でほぼ等間隔に切断する。繊維材１８の厚さｔは０．１ｍｍ〜１０ｍｍ程度である。切断された短冊状の繊維体２を図５（ａ）に示すように配列させ、樹脂材でコーティングし加熱及び冷却することにより繊維体２同士を連結させて熱伝導体１０を作製することができる。また、繊維体２同士を樹脂を用いて加圧、溶着等して連結させてもよい。   With reference to FIG. 5, the manufacturing method of such a heat conductor 10 is demonstrated. FIG. 5A is a cross-sectional view of the fiber material, and FIG. 5B is a plan view of the fiber material. For example, the flat fiber material 18 is cut at substantially equal intervals along a CC line. The thickness t of the fiber material 18 is about 0.1 mm to 10 mm. The cut strip-like fiber bodies 2 are arranged as shown in FIG. 5A, coated with a resin material, heated and cooled to connect the fiber bodies 2 to produce the heat conductor 10. it can. Moreover, you may connect the fiber bodies 2 by pressurization, welding, etc. using resin.

なお、平板状の繊維材１８等は、例えばボードメーカーや繊維メーカー等から入手することができ、例えば繊維を所定の時間だけ蒸焼き等して作られる。   The flat fiber material 18 and the like can be obtained from, for example, a board maker or a fiber maker. For example, the flat fiber material 18 is made by steaming a fiber for a predetermined time.

図６は、本発明の第２の実施の形態に係る熱伝導体を示す斜視図である。熱伝導体２０は、上記熱伝導体１０の表面１０ａ及び裏面１０ｂ（図１参照）に熱伝導板２６及び２７が取り付けられたものである。熱伝導板２６は熱伝導体１０に対して例えば熱圧着や接着剤等により取り付けることができる。熱伝導板２６及び２７としては、例えばカーボン繊維、カーボンナノチューブ等の繊維材を用いてもよいし、グラファイトシートやプリプレグを用いてもよい。   FIG. 6 is a perspective view showing a heat conductor according to the second embodiment of the present invention. The heat conductor 20 is obtained by attaching heat conductive plates 26 and 27 to the front surface 10a and the back surface 10b (see FIG. 1) of the heat conductor 10. The heat conduction plate 26 can be attached to the heat conductor 10 by, for example, thermocompression bonding or an adhesive. As the heat conductive plates 26 and 27, for example, fiber materials such as carbon fibers and carbon nanotubes may be used, or graphite sheets and prepregs may be used.

例えば熱伝導板２６に図示しない発熱体が接触させらた状態で、当該発熱体が熱を発すると、熱伝導板２６がその熱を吸収し、繊維体２の配列方向を含む面内（Ｘ−Ｙ平面内）で熱を伝導し、拡散する。拡散した熱は繊維体２によって縦方向に一様に伝導し、熱伝導板２７に伝達される。熱伝導板２７は、熱伝導板２６と同様に繊維体２から熱を吸収し、繊維体２の配列方向を含む面内（Ｘ−Ｙ平面内）で熱を伝導し、拡散する。これにより、さらに効率よく熱伝導させることができ、放熱効率を向上させることができる。   For example, when a heating element (not shown) is in contact with the heat conducting plate 26 and the heating element emits heat, the heat conducting plate 26 absorbs the heat and includes the arrangement direction of the fiber bodies 2 (X Conducts and diffuses heat in the -Y plane). The diffused heat is uniformly conducted in the longitudinal direction by the fiber body 2 and transmitted to the heat conduction plate 27. The heat conduction plate 27 absorbs heat from the fiber body 2 in the same manner as the heat conduction plate 26, and conducts and diffuses heat within a plane (in the XY plane) including the arrangement direction of the fiber bodies 2. Thereby, heat conduction can be performed more efficiently, and heat dissipation efficiency can be improved.

図７は、上記熱伝導体２０の変形例を示した斜視図である。この例では、上記熱伝導体２０に設けられた熱伝導体１０の中にさらに熱伝導板２８が設けられている。この熱伝導板２８も上記熱伝導板２６、２７と同様の素材を用いればよい。このように、熱伝導板を所望の部位に配置すればその部位で水平面内で熱伝導させることができる。   FIG. 7 is a perspective view showing a modification of the thermal conductor 20. In this example, a heat conduction plate 28 is further provided in the heat conductor 10 provided in the heat conductor 20. The heat conductive plate 28 may be made of the same material as the heat conductive plates 26 and 27. Thus, if a heat conductive board is arrange | positioned in a desired site | part, it can carry out heat conduction in the horizontal surface in the site | part.

図示を省略するが、熱伝導板２６等の代わりに例えば金属性の熱伝導板を設けるようにしてもよい。この場合、金属製の熱伝導板としては、例えば銅やアルミ等の金属板、金属箔等を用いることができる。   Although illustration is omitted, for example, a metallic heat conduction plate may be provided instead of the heat conduction plate 26 or the like. In this case, as a metal heat conductive plate, for example, a metal plate such as copper or aluminum, a metal foil, or the like can be used.

図８は本発明の第３の実施の形態に係る熱伝導体の一部を示す斜視図であり、図９はその熱伝導体の全体を示す斜視図である。この熱伝導体４０は、例えば棒状の繊維体４２に熱可塑性樹脂４３で被覆した棒状部材４５を横方向（Ｘ−Ｙ方向）に多数配列させて構成されたものである。繊維体４２の繊維材としては、上記のようなカーボン繊維、カーボンナノチューブ等を用いることができる。このような熱伝導体４０の構成によっても縦方向、すなわちその熱伝導体４０の表面から裏面にかけて効率よく熱伝導させることができる。   FIG. 8 is a perspective view showing a part of a heat conductor according to the third embodiment of the present invention, and FIG. 9 is a perspective view showing the whole heat conductor. The heat conductor 40 is configured by, for example, arranging a large number of rod-like members 45 covered with a thermoplastic resin 43 on rod-like fiber bodies 42 in the lateral direction (XY direction). As the fiber material of the fiber body 42, the above-described carbon fiber, carbon nanotube, or the like can be used. Also with such a configuration of the heat conductor 40, heat can be efficiently conducted in the vertical direction, that is, from the front surface to the back surface of the heat conductor 40.

図１０を参照して熱伝導体４０の製造方法について説明する。図１０（ａ）に示すように、棒状の繊維体４２を用意する。このような棒状の繊維体４２は繊維メーカー等から入手することができる。図１０（ｂ）に示すように、繊維体４２を樹脂材４３で被覆する。そしてこれを図１０（ｃ）に示すようにＣ−Ｃ線でほぼ等間隔に切断することで複数の棒状部材４５が作製される。このようにして作製された棒状部材４５を図８及び図９に示すように配列させて例えば熱圧着または熱溶着等することで、樹脂４３同士が連結される。このようにして熱伝導体４０が作製される。   With reference to FIG. 10, the manufacturing method of the heat conductor 40 is demonstrated. As shown in FIG. 10A, a rod-like fiber body 42 is prepared. Such a rod-like fiber body 42 can be obtained from a fiber manufacturer or the like. As shown in FIG. 10B, the fiber body 42 is covered with a resin material 43. Then, as shown in FIG. 10 (c), a plurality of rod-like members 45 are produced by cutting at substantially equal intervals along the line CC. By arranging the rod-like members 45 thus produced as shown in FIGS. 8 and 9 and performing, for example, thermocompression bonding or heat welding, the resins 43 are connected to each other. In this way, the heat conductor 40 is produced.

図１１は本発明の第４の実施の形態に係る熱伝導体の一部を示す斜視図である。本実施の形態では、図８等で示した棒状部材４５と同じ構造を有する棒状部材５５を横方向に配列させ例えば樹脂製の粘着テープ５３で連結させている。棒状部材５５は粘着テープ５３に対して熱圧着等によって接着させればよい。これを、図１２に示すように積層させて、すなわち粘着テープで棒状部材５５を挟むようにして熱伝導体５０が作製される。また、粘着テープ５３には、例えばカーボン繊維、カーボンナノチューブ等の繊維材、カーボン粉末等が含まれていてもよい。   FIG. 11 is a perspective view showing a part of a heat conductor according to the fourth embodiment of the present invention. In the present embodiment, rod-like members 55 having the same structure as the rod-like member 45 shown in FIG. 8 and the like are arranged in the horizontal direction and connected by, for example, a resin adhesive tape 53. The rod-shaped member 55 may be bonded to the adhesive tape 53 by thermocompression bonding or the like. This is laminated as shown in FIG. 12, that is, the heat conductor 50 is produced by sandwiching the rod-shaped member 55 with an adhesive tape. The adhesive tape 53 may contain, for example, a fiber material such as carbon fiber or carbon nanotube, carbon powder, or the like.

このように構成された熱伝導体５０では、棒状部材５５によってその長手方向に熱を伝導させることができる。また、粘着テープ５３に上記のような高熱伝導材料が含まれていればさらに効率的に熱伝導させることができる。   In the heat conductor 50 configured as described above, heat can be conducted in the longitudinal direction by the rod-shaped member 55. In addition, if the adhesive tape 53 includes the high heat conductive material as described above, the heat can be more efficiently conducted.

また、粘着テープ５３上に棒状部材５５を配列させたものを図１３及び図１４に示すようにロール状に巻いて構成してもよい。このようにしても、棒状部材５５の長手方向に効率よく熱伝導させることができる。   Alternatively, a structure in which rod-like members 55 are arranged on the adhesive tape 53 may be wound into a roll shape as shown in FIGS. 13 and 14. Even in this case, heat can be efficiently conducted in the longitudinal direction of the rod-shaped member 55.

さらに、図１５に示すように上記熱伝導体５０を複数用意し、例えば高熱伝導性のシート６５を挟むようにして熱伝導体６０を構成することができる。シート６５としては、例えば金属箔、金属板、カーボン繊維やカーボンナノチューブ等の繊維材、あるいはプリプレグを用いることができる。また、このように構成された熱伝導体６０をさらに積層してもよい。   Further, as shown in FIG. 15, a plurality of the heat conductors 50 are prepared, and the heat conductor 60 can be configured so as to sandwich, for example, a sheet 65 having high heat conductivity. As the sheet 65, for example, a metal foil, a metal plate, a fiber material such as carbon fiber or carbon nanotube, or a prepreg can be used. Moreover, you may laminate | stack the heat conductor 60 comprised in this way further.

図１６は、上記第１〜第４の実施の形態に係る熱伝導体を用いた冷却装置の斜視図である。この冷却装置７０は、例えば表面７３ａに発熱体７８が接するヒートスプレッダー７３と、ヒートスプレッダー７３に接続された冷却ファン７５と、冷却ファン７５に接続された放熱フィン７４とで構成されている。冷却ファン７５は、ファン７１とこのファン７１を収容するファンケース７２と、図示しないモータとを有している。発熱体７８はヒートスプレッダー７３の裏面７３ｂに接するように設けられていてもよい。   FIG. 16 is a perspective view of a cooling device using the heat conductor according to the first to fourth embodiments. The cooling device 70 includes, for example, a heat spreader 73 in which a heating element 78 is in contact with the surface 73 a, a cooling fan 75 connected to the heat spreader 73, and a radiating fin 74 connected to the cooling fan 75. The cooling fan 75 includes a fan 71, a fan case 72 that accommodates the fan 71, and a motor (not shown). The heating element 78 may be provided in contact with the back surface 73 b of the heat spreader 73.

例えば、ヒートスプレッダー７３、ファンケース７２及び放熱フィン７４のうち少なくとも１つに熱伝導体１０，２０，３０，４０，５０，６０のいずれかを用いればよい。特に、ヒートスプレッダー７３には、熱伝導体５０（図１２参照）を用い、Ｘ方向に熱伝導させることが好ましい。   For example, any one of the heat conductors 10, 20, 30, 40, 50, 60 may be used for at least one of the heat spreader 73, the fan case 72, and the heat radiating fins 74. In particular, it is preferable to use the heat conductor 50 (see FIG. 12) for the heat spreader 73 to conduct heat in the X direction.

Ｘ方向に熱伝導させることで、ファンケース７２及びファンケース７２の内部の空間に熱が伝導される。このように伝導された熱は、放熱フィン７４に伝導される。一方、ファン７１の回転により、ケース７２の外部からケース７２の内部に空気が取り入れられるとともに、取り入れられた空気はケースの側面の開口部７２ａから放熱フィン７４に向けて排出される。これにより、ファンケース７２及びヒートスプレッダー７３が冷却されるとともに、放熱フィン７４が冷やされ放熱される。   By conducting heat in the X direction, heat is conducted to the fan case 72 and the space inside the fan case 72. The heat thus conducted is conducted to the radiation fins 74. On the other hand, the rotation of the fan 71 causes air to be taken into the case 72 from the outside of the case 72, and the taken-in air is discharged toward the radiation fins 74 from the openings 72 a on the side surface of the case. As a result, the fan case 72 and the heat spreader 73 are cooled, and the radiating fins 74 are cooled and radiated.

図１７は、上記第１〜第４の実施の形態に係る熱伝導体を用いた別の冷却装置を示す斜視図である。この冷却装置８０は、冷却ファンのファンモータ部８５と、このファンモータ部８５を収容するケース８６とを有している。例えばファンモータ部８５はファン８３及び図示しないモータを有し、ケース８６の開口した上部に載置されるようにして収容される。ケース８６は、側面部８６ａと底面部８６ｂとを有し、側面部８６ａの１つにはケース８６の内部から外部へ空気を排出するための切り欠き部８６ｃが形成されている。例えば、発熱体７８はケースの底面部８６ｂの裏側に接するように配置される。   FIG. 17 is a perspective view showing another cooling device using the heat conductor according to the first to fourth embodiments. The cooling device 80 includes a fan motor unit 85 of a cooling fan and a case 86 that accommodates the fan motor unit 85. For example, the fan motor unit 85 includes a fan 83 and a motor (not shown), and is accommodated so as to be placed on the opened upper portion of the case 86. The case 86 has a side surface portion 86a and a bottom surface portion 86b, and a notch portion 86c for discharging air from the inside of the case 86 to the outside is formed in one of the side surface portions 86a. For example, the heating element 78 is disposed so as to contact the back side of the bottom surface portion 86b of the case.

ケースの側面部８６ａ及び底面部８６ｂのうち少なくとも一方に熱伝導体１０，２０，３０，４０，５０，６０のいずれかを用いればよい。特に、底面部８６ｂには熱伝導体１０〜４０のいずれかを用い、側面部８６ａには熱伝導体１０〜６０のいずれかを用いればよい。これにより、底面部８６ｂの熱伝導体により発熱体７８から発せられる熱を縦方向（Ｚ方向）に高効率で伝導させ、その熱を側面部８６ａが効率的に吸収する。吸収した熱は、ファン８３の回転によりケース８６内に取り入れられる空気によって切り欠き部８６ｃから排出される。   Any one of the heat conductors 10, 20, 30, 40, 50, 60 may be used for at least one of the side surface portion 86a and the bottom surface portion 86b of the case. In particular, any one of the heat conductors 10 to 40 may be used for the bottom surface portion 86b, and any one of the heat conductors 10 to 60 may be used for the side surface portion 86a. Thereby, the heat generated from the heating element 78 is conducted with high efficiency in the vertical direction (Z direction) by the heat conductor of the bottom surface portion 86b, and the side surface portion 86a efficiently absorbs the heat. The absorbed heat is discharged from the notch 86c by the air taken into the case 86 by the rotation of the fan 83.

また、底面部８６ｂと側面部８６ａとで熱伝導率の異なる熱伝導体を用いてもよい。   Moreover, you may use the heat conductor from which heat conductivity differs in the bottom face part 86b and the side part 86a.

図１８は、上記第１〜第４の実施の形態に係る熱伝導体を用いたさらに別の冷却装置を示す斜視図である。この冷却装置９０は、発熱体７８が接するベース部９１に放熱フィン９２が多数取り付けられて構成されている。ベース部９１に例えば熱伝導体１０〜４０のいずれかを用いることで、発熱体７８から発せられる効率的に放熱処理することができる。また、放熱フィン９２にも同様に熱伝導体１０〜４０のいずれかを用いることができる。   FIG. 18 is a perspective view showing still another cooling device using the heat conductor according to the first to fourth embodiments. The cooling device 90 is configured by attaching a large number of radiating fins 92 to a base portion 91 with which a heating element 78 contacts. For example, by using any one of the heat conductors 10 to 40 for the base portion 91, it is possible to efficiently dissipate heat emitted from the heating element 78. Similarly, any of the heat conductors 10 to 40 can be used for the heat radiation fin 92.

以上説明したように、熱伝導体１０〜６０を適宜組み合わせて冷却装置の部材を構成することができる。これにより、軽量化等を達成しつつ効率よく冷却処理することができる。   As described above, the members of the cooling device can be configured by appropriately combining the heat conductors 10 to 60. Thereby, it is possible to efficiently perform the cooling process while achieving weight reduction and the like.

本発明は以上説明した実施の形態には限定されるものではなく、種々の変形が可能である。   The present invention is not limited to the embodiment described above, and various modifications are possible.

上記第１の実施の形態で説明した複数の繊維体２は、図５において製造方法でも説明したようにそれぞれ同じものを用いたが、例えば種類の異なる複数の繊維材から得られる繊維体をそれぞれ連結させて、１つの熱伝導体を構成するようにしてもよい。異なる種類とは、例えば図５において繊維材１８を作るときの蒸焼きの温度や時間等で繊維材１８の熱伝導率を異ならせることができる。あるいは、繊維自体異なる物質を用いてもよい。このようにすることにより、例えば熱伝導体のうち所望の部位のみを他の部位と比較して熱伝導率を高くしたり低くしたりすることができる。したがって、効率的に熱伝導することができ、熱伝導体の選択性を向上させることができる。   The plurality of fiber bodies 2 described in the first embodiment are the same as described in the manufacturing method in FIG. 5. For example, fiber bodies obtained from a plurality of different fiber materials are used. You may make it comprise and comprise one heat conductor. For example, the thermal conductivity of the fiber material 18 can be varied depending on the temperature and time of steaming when the fiber material 18 is made in FIG. Alternatively, a material different from the fiber itself may be used. By doing in this way, for example, only a desired part among heat conductors can be made high or low compared with other parts. Therefore, heat can be efficiently conducted and the selectivity of the heat conductor can be improved.

例えば、図５に示した例では、熱伝導板２６及び２７を両方設けるようにしたが、熱伝導板２６または２７のいずれか一方のみが設けられるようにしてもよい。また、熱伝導板２６と熱伝導板２７とを、熱伝導率の異なるものにしてもよい。   For example, in the example shown in FIG. 5, both the heat conductive plates 26 and 27 are provided, but only one of the heat conductive plates 26 or 27 may be provided. Further, the heat conducting plate 26 and the heat conducting plate 27 may have different thermal conductivities.

第１の実施の形態で説明した繊維体２の形状は短冊状としたが、例えば、櫛歯形状、楕円形状、その他多角形の形状としてもよい。また、熱伝導体１０は配列方向（Ｘ方向）を熱伝導の方向（Ｚ方向）とほぼ垂直としたが、これに限られず、様々な角度が考えられる。   The shape of the fibrous body 2 described in the first embodiment is a strip shape, but may be a comb shape, an elliptical shape, or other polygonal shapes, for example. Further, although the arrangement direction (X direction) of the heat conductor 10 is substantially perpendicular to the heat conduction direction (Z direction), the present invention is not limited to this, and various angles are conceivable.

本発明の第１の実施の形態に係る熱伝導体を示す斜視図である。It is a perspective view which shows the heat conductor which concerns on the 1st Embodiment of this invention. 図１におけるＡ−Ａ線断面図である。It is the sectional view on the AA line in FIG. 複数の繊維体のうち１つを示す斜視図である。It is a perspective view which shows one among several fiber bodies. 繊維体の拡大図である。It is an enlarged view of a fiber body. 図１に示す熱伝導体の製造方法を示す図である。It is a figure which shows the manufacturing method of the heat conductor shown in FIG. 本発明の第２の実施の形態に係る熱伝導体を示す斜視図である。It is a perspective view which shows the heat conductor which concerns on the 2nd Embodiment of this invention. 第２の実施の形態に係る熱伝導体の変形例を示した斜視図である。It is the perspective view which showed the modification of the heat conductor which concerns on 2nd Embodiment. 本発明の第３の実施の形態に係る熱伝導体の一部を示す斜視図である。It is a perspective view which shows a part of thermal conductor which concerns on the 3rd Embodiment of this invention. 図８に示す熱伝導体の全体を示す斜視図である。It is a perspective view which shows the whole heat conductor shown in FIG. 図８及び図９に示す熱伝導体の製造方法を示す図である。It is a figure which shows the manufacturing method of the heat conductor shown in FIG.8 and FIG.9. 本発明の第４の実施の形態に係る熱伝導体の一部を示す斜視図である。It is a perspective view which shows a part of heat conductor which concerns on the 4th Embodiment of this invention. その熱伝導体を積層させた熱伝導体を示す側面図である。It is a side view which shows the heat conductor which laminated | stacked the heat conductor. 粘着テープ上に棒状部材を配列させてロール状に巻いた熱伝導体を示す側面図である。It is a side view which shows the heat conductor which arranged the rod-shaped member on the adhesive tape, and was wound in roll shape. 図１３に示す熱伝導体の斜視図である。It is a perspective view of the heat conductor shown in FIG. 図１２に示す熱伝導体複数で高熱伝導性のシートを挟んで構成された熱伝導体を示す斜視図である。It is a perspective view which shows the heat conductor comprised on both sides of the sheet | seat of high heat conductivity with the heat conductor shown in FIG. 本発明の一実施の形態に係る冷却装置の斜視図である。It is a perspective view of the cooling device concerning one embodiment of the present invention. 別の形態に係る冷却装置を示す斜視図である。It is a perspective view which shows the cooling device which concerns on another form. さらに別の形態に係る冷却装置を示す斜視図である。It is a perspective view which shows the cooling device which concerns on another form.

符号の説明Explanation of symbols

２，４２…繊維体
３，１８…繊維材
５…樹脂材
１０，２０，３０，４０，５０，６０…熱伝導体
１０ａ…表面
１０ｂ…裏面
２６，２７，２８…熱伝導板
４５，５５…棒状部材
５３…粘着テープ
７０，８０，９０…冷却装置
７８…発熱体
DESCRIPTION OF SYMBOLS 2,42 ... Fiber body 3,18 ... Fiber material 5 ... Resin material 10, 20, 30, 40, 50, 60 ... Thermal conductor 10a ... Front surface 10b ... Back surface 26, 27, 28 ... Thermal conduction plate 45, 55 ... Rod-like member 53 ... Adhesive tape 70, 80, 90 ... Cooling device 78 ... Heating element

Claims (11)

発熱体から発せられる熱を第１の方向に伝導させるように該第１の方向に連続して設けられた繊維材を有し、該第１の方向とは異なる第２の方向に配列された複数の繊維体と、
配列された前記複数の繊維体を連結する樹脂材と
を具備することを特徴とする熱伝導体。 The fiber material continuously provided in the first direction so as to conduct heat generated from the heating element in the first direction, and arranged in a second direction different from the first direction A plurality of fibrous bodies;
A heat conductor comprising: a resin material that connects the plurality of arranged fibrous bodies. 請求項１に記載の熱伝導体であって、
前記樹脂材の中に含まれた金属、カーボン材、またはグラファイト材をさらに具備することを特徴とする熱伝導体。 The heat conductor according to claim 1,
The heat conductor further comprising a metal, a carbon material, or a graphite material contained in the resin material. 請求項１に記載の熱伝導体であって、
前記繊維体は、
それぞれ該繊維体の長手方向とほぼ直行する方向に熱を伝導させるように長尺の板状に形成され、かつ、当該板状の繊維体の表面に対してほぼ垂直方向に複数配列されていることを特徴とする熱伝導体。 The heat conductor according to claim 1,
The fibrous body is
Each is formed in a long plate shape so as to conduct heat in a direction substantially perpendicular to the longitudinal direction of the fibrous body, and a plurality of rows are arranged in a direction substantially perpendicular to the surface of the plate-like fibrous body. A heat conductor characterized by that. 請求項１に記載の熱伝導体であって、
前記繊維体は、
それぞれ該繊維体の長手方向に熱を伝導させるように棒状に形成され、かつ、当該繊維体の長手方向にほぼ直行する方向に複数配列されていることを特徴とする熱伝導体。 The heat conductor according to claim 1,
The fibrous body is
A heat conductor characterized by being formed in a rod shape so as to conduct heat in the longitudinal direction of the fibrous body and arranged in a direction substantially perpendicular to the longitudinal direction of the fibrous body. 請求項１に記載の熱伝導体であって、
前記発熱体から発せられる熱を前記第２の方向を含む面内で伝導させる熱伝導板をさらに具備することを特徴とする熱伝導体。 The heat conductor according to claim 1,
A heat conductor, further comprising a heat conductive plate that conducts heat generated from the heat generator in a plane including the second direction. 請求項１に記載の熱伝導体であって、
前記繊維体は、それぞれ該繊維体の長手方向に熱を伝導させるように棒状に形成され、
前記樹脂材は、粘着性を有するシート状に形成され、かつ、配列された前記複数の繊維体を挟むように設けられていることを特徴とする熱伝導体。 The heat conductor according to claim 1,
Each of the fibrous bodies is formed in a rod shape so as to conduct heat in the longitudinal direction of the fibrous bodies,
The heat conductor, wherein the resin material is formed in an adhesive sheet shape and is provided so as to sandwich the arrayed fibrous bodies. 請求項１に記載の熱伝導体であって、
前記繊維体がそれぞれ配置される位置によって熱伝導率が異なるように構成されていることを特徴とする熱伝導体。 The heat conductor according to claim 1,
A thermal conductor characterized in that the thermal conductivity is different depending on the position at which the fibrous bodies are arranged. 発熱体から発せられる熱を第１の方向に伝導させるように該第１の方向に連続して設けられ、該第１の方向とは異なる第２の方向に配列されたシート状の熱伝導部材と、
配列された前記複数の熱伝導体を連結する樹脂材と
を具備することを特徴とする熱伝導体。 A sheet-like heat conducting member provided continuously in the first direction so as to conduct heat generated from the heating element in the first direction and arranged in a second direction different from the first direction. When,
And a resin material connecting the plurality of arranged heat conductors. 前記発熱体から発せられる熱を第１の方向に伝導させるように該第１の方向に連続して設けられた繊維材を有し、該第１の方向とは異なる第２の方向に配列された複数の繊維体と、
配列された前記複数の繊維体を連結する樹脂材と
を有する熱伝導体を備えた冷却装置。 A fiber material provided continuously in the first direction so as to conduct heat generated from the heating element in the first direction, and arranged in a second direction different from the first direction; A plurality of fibrous bodies,
A cooling device comprising: a heat conductor having a resin material that connects the plurality of arranged fibrous bodies. 発熱体と、
前記発熱体から発せられる熱を第１の方向に伝導させるように該第１の方向に連続して設けられた繊維材を有し、該第１の方向とは異なる第２の方向に配列された複数の繊維体と、
配列された前記複数の繊維体を連結する樹脂材と
を具備することを特徴とする電子機器。 A heating element;
A fiber material provided continuously in the first direction so as to conduct heat generated from the heating element in the first direction, and arranged in a second direction different from the first direction; A plurality of fibrous bodies,
An electronic device comprising: a resin material that connects the plurality of arranged fibrous bodies. 発熱体から発せられる熱を第１の方向に伝導させるための繊維材を切断することで、該繊維材を複数の繊維体に分割する工程と、
分割された前記複数の繊維体を前記第１の方向とは異なる第２の方向に配列させるために、当該複数の繊維体を樹脂材で連結させる工程と
を具備することを特徴とする熱伝導体の製造方法。 A step of dividing the fiber material into a plurality of fiber bodies by cutting the fiber material for conducting heat generated from the heating element in the first direction;
Connecting the plurality of fiber bodies with a resin material in order to arrange the plurality of divided fiber bodies in a second direction different from the first direction. Body manufacturing method.
JP2003350088A 2003-10-08 2003-10-08 Heat conductor, cooling device, electronic apparatus, and method for manufacturing heat conductor Pending JP2005116839A (en)

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