JP2015204143A

JP2015204143A - Floodlight

Info

Publication number: JP2015204143A
Application number: JP2014081646A
Authority: JP
Inventors: 涼溶田; Ryo Uneda; 秀二岡崎; Hideji Okazaki
Original assignee: Sodick Co Ltd
Current assignee: Sodick Co Ltd
Priority date: 2014-04-11
Filing date: 2014-04-11
Publication date: 2015-11-16
Anticipated expiration: 2034-04-11
Also published as: JP5933621B2

Abstract

PROBLEM TO BE SOLVED: To achieve a floodlight comprising a heat sink with a radiating fin that is made of carbon fiber, in which the heat transfer efficiency of the radiating fin is improved and quick and favorable heat radiation can be performed.SOLUTION: A floodlight 100 comprises a heat sink that has a radiating fin with a fiber layer 2 composed of carbon fiber, and a pair of reinforcement layers 3 obtained by reinforcing carbon fiber with resin, the reinforcement layers sandwiching the fiber layer between them, and a substrate connected to the radiating fin.

Description

本発明は、炭素繊維を素材として用いた放熱フィンを有するヒートシンクを備えた投光器に関するものである。 The present invention relates to a projector provided with a heat sink having a radiation fin using carbon fiber as a material.

従来から、好適な放熱性を実現するために、熱伝導性の高い金属からなる放熱フィンを備えたヒートシンクが用いられている。しかしながら、放熱効果をより高くするために放熱フィンの枚数を増やし、面積を大きくすると、たとえアルミニウムのような軽金属であっても許容できる質量を超えてしまう。近年では、様々な素材の発展に伴って、例えば、特許文献１に示されるように、軽量化を図るために放熱フィンを炭素繊維強化樹脂(ＣＦＲＰ:Carbon Fiber Reinforced Plastic）により構成したヒートシンクが提案されている。 2. Description of the Related Art Conventionally, a heat sink provided with heat radiation fins made of a metal having high thermal conductivity has been used in order to achieve suitable heat radiation. However, if the number of radiating fins is increased and the area is increased in order to further increase the radiating effect, even if it is a light metal such as aluminum, the allowable mass is exceeded. In recent years, with the development of various materials, for example, as disclosed in Patent Document 1, a heat sink in which heat radiation fins are made of carbon fiber reinforced resin (CFRP) has been proposed in order to reduce weight. Has been.

特開２００１−２１７３５９号公報JP 2001-217359 A

例えば、発光ダイオード（LED，Light Emitting Diode）を光源とする投光器の場合、光源が高温になると、発光効率を維持し、半導体を長寿命化させるために好ましくない。屋外に設置される投光器に動力源を有する冷却装置を設けることが難しいため、光源の光量をより大きくするためには、ヒートシンクの放熱効果をより向上させることが重要である。ヒートシンク本体の大きさには限界があるので、特に高い出力を有する投光器に適用されるヒートシンクにおいては、放熱性能を高めるために、投光器の発熱部分から離れる方向に放熱フィン内の熱伝達の速度を大きくすることが望まれている。しかしながら、特許文献１に示されるヒートシンクは、放熱フィンの全体が炭素繊維強化樹脂で構成されているため、放熱フィンの炭素繊維の間に充填された樹脂による熱伝導率低下の影響が大きく、放熱フィン内の熱伝達の速度が抑制されたものとなっている。 For example, in the case of a projector using a light emitting diode (LED) as a light source, when the light source becomes high temperature, it is not preferable for maintaining the light emission efficiency and extending the life of the semiconductor. Since it is difficult to provide a cooling device having a power source in a projector installed outdoors, it is important to further improve the heat dissipation effect of the heat sink in order to increase the light amount of the light source. Since there is a limit to the size of the heat sink body, especially in heat sinks applied to projectors with high output, in order to improve heat dissipation performance, the speed of heat transfer in the radiation fins in the direction away from the heat generating part of the projector is increased. It is desired to make it larger. However, in the heat sink shown in Patent Document 1, since the entire radiation fin is made of carbon fiber reinforced resin, the effect of a decrease in thermal conductivity due to the resin filled between the carbon fibers of the radiation fin is large. The speed of heat transfer in the fin is suppressed.

本発明の目的は、上記事情に鑑み、炭素繊維性の放熱フィンの熱伝達効率を向上させて、迅速且つ良好に放熱可能な放熱フィンを有するヒートシンクを備えた投光器を実現することにある。 In view of the above circumstances, an object of the present invention is to improve a heat transfer efficiency of a carbon fiber radiating fin, and to realize a projector including a heat sink having a radiating fin capable of radiating heat quickly and satisfactorily.

上記の課題を解決するために、本発明に係る投光器は、炭素繊維からなる繊維層と、炭素繊維を樹脂で補強した補強層であって、前記繊維層を挟んで設けられた一対の補強層とを有する放熱フィンと、該放熱フィンに接続される基体とを有するヒートシンクを備えたことを特徴とするものである。 In order to solve the above problems, a projector according to the present invention includes a fiber layer made of carbon fiber, and a reinforcing layer in which carbon fiber is reinforced with a resin, and a pair of reinforcing layers provided with the fiber layer interposed therebetween. And a heat sink having a base connected to the heat radiating fin.

上記「炭素繊維を樹脂で補強した」とは、複数の炭素繊維間に樹脂を含浸させて強化したことを意味し、例えば、いわゆる炭素繊維強化樹脂、あるいは、炭素繊維強化樹脂となる前の炭素繊維に樹脂を含浸させた成型用中間材料であるプリプレグが炭素繊維を樹脂で補強したものに相当する。また、上記「補強層」は、実質的に複数の炭素繊維間に樹脂を含浸させて強化したとみなせるものであれば、炭素繊維と樹脂のみからなるものだけでなく、実質的に炭素繊維と樹脂による放熱性能と軽量化と形状維持の効果を維持できる範囲で、別の材料が含まれているものも含む。 The above-mentioned “reinforced carbon fiber with resin” means that a plurality of carbon fibers are impregnated with resin and strengthened, for example, carbon before becoming a so-called carbon fiber reinforced resin or carbon fiber reinforced resin. The prepreg, which is an intermediate material for molding in which fibers are impregnated with a resin, corresponds to a carbon fiber reinforced with a resin. In addition, the “reinforcing layer” is not limited to the carbon fiber and the resin alone, as long as it can be regarded as being substantially impregnated with a resin between a plurality of carbon fibers. It includes those containing other materials as long as the heat dissipation performance, weight reduction, and shape maintenance effects of the resin can be maintained.

なお、上記「繊維層」は、実質的に炭素繊維のみからなるものであるとみなせるものであれば、炭素繊維のみからなるものだけでなく、実質的に炭素繊維による放熱性能と軽量化の効果を維持できる範囲で、別の材料が含まれているものも含む。 In addition, as long as the “fiber layer” can be regarded as consisting essentially of carbon fibers, not only those consisting of carbon fibers but also the heat radiation performance and weight reduction effect due to carbon fibers. As long as the above can be maintained, it also includes those containing other materials.

また、上記放熱フィンは「炭素繊維からなる繊維層と、炭素繊維を樹脂で補強した補強層であって、前記繊維層を挟んで設けられた一対の補強層」を有するものであれば、すなわち、繊維層を補強層でサンドイッチした構造を有するものであれば、さらなる層を備えてもよい。例えば、補強層、繊維層、補強層を順に積層した３層構成であってもよく、補強層、繊維層、補強層、繊維層、補強層の順に積層された５層構成としてもよく、さらに繊維層と補強層を交互に任意の回数積層したものとしてよい。また、例えば、補強層、繊維層、補強層を順に積層した３層に加えて、さらなる保護層など任意の層を設けてもよい。 In addition, if the heat dissipation fin has “a fiber layer made of carbon fiber and a reinforcing layer in which carbon fiber is reinforced with a resin and is provided with a pair of reinforcing layers sandwiching the fiber layer”, As long as it has a structure in which a fiber layer is sandwiched between reinforcing layers, an additional layer may be provided. For example, a three-layer configuration in which a reinforcing layer, a fiber layer, and a reinforcing layer are sequentially stacked may be used, or a five-layer configuration in which a reinforcing layer, a fiber layer, a reinforcing layer, a fiber layer, and a reinforcing layer are stacked in this order may be used. The fiber layer and the reinforcing layer may be alternately laminated any number of times. Further, for example, in addition to the three layers in which the reinforcing layer, the fiber layer, and the reinforcing layer are sequentially laminated, an arbitrary layer such as a further protective layer may be provided.

上記「接続される」とは、ヒートシンクの基体から放熱フィンに熱を伝えることができるように固定されることを意味する。なお、放熱フィンは、ヒートシンクの基体から放熱フィンに熱を伝えることができるように接続されるものであれば、いかなる方法でヒートシンクの基体に接続されていてもよいが、放熱効率を高めるために、基体の熱を伝える部分が放熱フィンに直接接触していることが好ましい。また、例えば、放熱フィンを、炭素繊維よりも高い熱伝導率を有する素材から構成される間接部材に当接させ、間接部材を任意の方法で基体に固定することにより、間接部材を介して放熱フィンと基体とを熱交換可能に固定してもよい。 The term “connected” means that the heat sink is fixed so that heat can be transferred from the base of the heat sink to the radiating fin. The heat radiation fin may be connected to the heat sink base by any method as long as it can be connected to the heat sink from the heat sink base. In addition, it is preferable that the portion of the substrate that conducts heat is in direct contact with the radiation fin. Further, for example, the heat dissipating fins are brought into contact with an indirect member made of a material having a higher thermal conductivity than the carbon fiber, and the indirect member is fixed to the base body by an arbitrary method, whereby heat is dissipated through the indirect member. You may fix a fin and a base | substrate so that heat exchange is possible.

また、上記投光器において、前記繊維層は、該繊維層における前記炭素繊維の伸びる方向が前記基体から離れる方向に平行になるように構成されていることが好ましい。 In the above projector, the fiber layer is preferably configured so that a direction in which the carbon fiber extends in the fiber layer is parallel to a direction away from the base.

また、前記ヒートシンクは、前記基体上に並列配置された略四角柱部材である複数の挟持部材と、前記挟持部材の間に前記放熱フィンの基端部を挿入した状態で、前記複数の挟持部材を互いに密着させる方向に前記複数の挟持部材に圧力を加えることにより、前記放熱フィンを挟持する押圧手段をさらに備えていることが好ましい。 The heat sink includes a plurality of sandwiching members that are substantially quadrangular prism members arranged in parallel on the base, and the plurality of sandwiching members in a state in which a base end portion of the radiating fin is inserted between the sandwiching members. It is preferable to further comprise a pressing means for clamping the heat radiating fins by applying pressure to the plurality of clamping members in a direction in which they are closely attached to each other.

また、前記ヒートシンクは、前記密着させる方向に直交する方向において、前記複数の挟持部材の両端部を前記基体に押し付けて保持する押付保持手段をさらに備えていることが好ましい。 Moreover, it is preferable that the said heat sink is further provided with the pressing holding means which presses and hold | maintains the both ends of the said several clamping member to the said base | substrate in the direction orthogonal to the said direction to contact | adhere.

本発明の投光器によれば、炭素繊維からなる繊維層と、炭素繊維を樹脂で補強した補強層であって、前記繊維層を挟んで設けられた一対の補強層とを有する放熱フィンと、該放熱フィンに接続される基体とを有するヒートシンクを備えたことにより、放熱フィンの外形を保持しつつ、放熱フィン内に高い熱伝導率を有する繊維層による放熱経路を確保することができる。このため、基体からの熱を基体から離れる方向に迅速且つ良好に伝えることができ、放熱フィンの熱伝導効率を向上させて良好な放熱性能を実現することができる。 According to the floodlight of the present invention, the heat dissipating fin having a fiber layer made of carbon fiber and a reinforcing layer obtained by reinforcing the carbon fiber with a resin, and a pair of reinforcing layers provided with the fiber layer interposed therebetween, By providing the heat sink having the base connected to the heat radiating fin, it is possible to secure a heat radiating path by the fiber layer having high thermal conductivity in the heat radiating fin while maintaining the outer shape of the heat radiating fin. For this reason, the heat from the base can be transmitted quickly and satisfactorily in the direction away from the base, and the heat conduction efficiency of the heat radiating fins can be improved to achieve good heat dissipation performance.

本発明の一実施形態に係る投光器の概略構成を示す斜視図。The perspective view which shows schematic structure of the projector which concerns on one Embodiment of this invention. 図１の投光器を構成するヒートシンクの概略構成を示す斜視図。The perspective view which shows schematic structure of the heat sink which comprises the light projector of FIG. 図２のヒートシンクの構成を模式的に示す概略図。Schematic which shows the structure of the heat sink of FIG. 2 typically. 図２のヒートシンクを構成する放熱フィンの構成を模式的に示す図。The figure which shows typically the structure of the radiation fin which comprises the heat sink of FIG. 図２に示す投光器のＡ−Ａ断面図。AA sectional drawing of the light projector shown in FIG. 図２に示す投光器のＢ−Ｂ断面図。BB sectional drawing of the light projector shown in FIG.

以下、本発明に係るヒートシンクを備えた投光器の実施形態について図面を用いて詳細に説明する。図１は、本発明の一実施形態に係る投光器１００の概略構成を示す斜視図であり、図２は、図１の投光器１００を構成するヒートシンク１０の概略構成を示す斜視図であり、図３は、図２に示すヒートシンク１０の構成を模式的に示す概略図であり、図４は、図２のヒートシンク１０を構成する放熱フィン１の構成を模式的に示す図であり、図５は、図２に示すヒートシンク１０のＡ−Ａ断面図であり、図６は、図２に示すヒートシンク１０のＢ−Ｂ断面図である。なお、図３は、説明のため、図２とは角度を異ならせ、図２における一部の部品を省略してヒートシンク１０を示している。 Hereinafter, embodiments of a projector provided with a heat sink according to the present invention will be described in detail with reference to the drawings. 1 is a perspective view showing a schematic configuration of a projector 100 according to an embodiment of the present invention, and FIG. 2 is a perspective view showing a schematic configuration of a heat sink 10 constituting the projector 100 of FIG. FIG. 4 is a schematic diagram schematically showing the configuration of the heat sink 10 shown in FIG. 2, FIG. 4 is a diagram schematically showing the configuration of the radiating fins 1 constituting the heat sink 10 of FIG. 2, and FIG. 2 is a cross-sectional view taken along line AA of the heat sink 10 shown in FIG. 2, and FIG. 6 is a cross-sectional view taken along line BB of the heat sink 10 shown in FIG. 3 shows the heat sink 10 with an angle different from that of FIG. 2 and omits some of the components in FIG.

投光器１００は、発熱源となる光源としての複数の発光ダイオード素子が配設されている図示しない基板と、基板を包囲するように取り付けられたリフレクタ３２と、基板の全面が密接するように設けられる基体１１を有するヒートシンク１０と、ヒートシンク１０の両側面に設けられる不図示の回転軸を介してヒートシンク１０を回転可能に支持する本体支持部３４と、ヒートシンク１０を本体支持部３４に対して所望の姿勢で保持するための姿勢ネジ３５とを備える。なお、本体支持部３４には、本体支持部３４に対する投光器本体の角度を示す角度標識板が備えられている。投光器１００を手動で回転させながら所望の照射方向に合わせて適する姿勢に位置決めした後で姿勢ネジ３５を締め付けることにより、ヒートシンク１０の回動が制限されて投光器１００の姿勢が保持される。 The projector 100 is provided such that a substrate (not shown) on which a plurality of light emitting diode elements as light sources serving as heat sources are disposed, a reflector 32 attached so as to surround the substrate, and the entire surface of the substrate are in close contact with each other. A heat sink 10 having a base 11, a main body support portion 34 that rotatably supports the heat sink 10 via rotating shafts (not shown) provided on both side surfaces of the heat sink 10, and a desired heat sink 10 with respect to the main body support portion 34. A posture screw 35 for holding in a posture. The main body support portion 34 is provided with an angle indicator plate that indicates the angle of the projector main body with respect to the main body support portion 34. By rotating the projector 100 manually and positioning it in a suitable posture in accordance with a desired irradiation direction, the posture screw 35 is tightened, whereby the rotation of the heat sink 10 is restricted and the posture of the projector 100 is maintained.

図２、３、５および６に示すように、投光器１００のヒートシンク１０は、基板からの熱を受け取るために不図示の基板に接続された基体１１と、基体１１に接続され、Ｚ軸方向に並列配置された複数の放熱フィン１と、基体１１からＹ軸方向に立設され全体として断面略扇形状の４本の支柱１６と、４本の支柱１６の先端部に固定され、複数の放熱フィン１をＹ軸方向に保護する蓋板２２と、基体１１のＺ軸方向の一端部に固定された第１固定部材１４と、および基体１１のＺ軸方向の他端部に固定された第２固定部材１５と、第１固定部材１４と第２固定部材１５にそれぞれ固定されてＹ軸方向に立設した一対の保護板２２Ａ、２２Ｂと、一対の保護板２２Ａ、２２Ｂに架け渡されるように固定され、複数の放熱フィン１をＺ軸方向に貫通する２本の補強材１８を備える。一対の保護板２２Ａ、２２Ｂは、Ｚ軸方向の外力に対して放熱フィン１を保護するものであり、複数の放熱フィン１を挟んで各放熱フィン１に平行に設けられている。また、一対の保護板２２Ａ、２２Ｂは、ヒートシンク１０の軽量化と放熱性能の向上のために、それぞれ炭素繊維強化樹脂によって構成されている。また、蓋板２２には、放熱フィン１と外気との熱交換を高めるように不図示の複数の開放孔が設けられている。 As shown in FIGS. 2, 3, 5 and 6, the heat sink 10 of the projector 100 includes a base 11 connected to a substrate (not shown) for receiving heat from the substrate, and a base 11 connected to the base 11 in the Z-axis direction. A plurality of heat dissipating fins 1 arranged in parallel, four struts 16 erected from the base 11 in the Y-axis direction and having a generally sectional fan shape as a whole, and fixed to the tips of the four struts 16, a plurality of heat dissipations A cover plate 22 that protects the fin 1 in the Y-axis direction, a first fixing member 14 that is fixed to one end of the base 11 in the Z-axis direction, and a first that is fixed to the other end of the base 11 in the Z-axis direction. 2 fixed members 15, a pair of protective plates 22A and 22B fixed to the first fixing member 14 and the second fixing member 15 and standing in the Y-axis direction, and a pair of protective plates 22A and 22B. Fixed to the surface and penetrates the plurality of radiating fins 1 in the Z-axis direction. It comprises two reinforcement 18. The pair of protection plates 22 A and 22 B protects the radiation fins 1 against external forces in the Z-axis direction, and are provided in parallel to the radiation fins 1 with the plurality of radiation fins 1 interposed therebetween. Further, the pair of protective plates 22A and 22B are each made of carbon fiber reinforced resin in order to reduce the weight of the heat sink 10 and improve the heat dissipation performance. The lid plate 22 is provided with a plurality of open holes (not shown) so as to enhance heat exchange between the heat radiation fins 1 and the outside air.

また、ヒートシンク１０は、放熱フィン１を基体１１に接続するための好ましい構成として、基体１１上に並列配置された略四角柱部材である複数の挟持部材１２と、複数の挟持部材１２を挟んで対向する位置に設けられた第１固定部材１４および第２固定部材１５と、第１固定部材１４の挿入孔１４Ａに挿入されて複数の挟持部材１２を密着させる方向（図中Ｚ方向）に向かって複数の挟持部材１２を締め付ける押圧ネジ１３と、挟持部材１２のＸ軸方向における両端部にそれぞれ設けられ、複数の挟持部材１２を基体１１に押し付けて保持するための一対の押付部材１９と、押付部材１９を基体１１に固定するための位置決めネジ２０を備える。本実施形態における第１固定部材１４と第２固定部材１５と押圧ネジ１３とは、挟持部材１２の間に放熱フィン１の基端部を挿入した状態で、複数の挟持部材１２を互いに密着させる方向に複数の挟持部材１２に圧力を加えることにより、放熱フィン１を挟持する押圧手段に相当する。また、押付部材１９と位置決めネジ２０とは、複数の挟持部材１２の上記密着させる方向に直交する方向における両端部を基体１１に押し付けて保持する押付保持手段に相当する。なお、図３において、ヒートシンク１０の支柱１６と保護板２２Ａ、２２Ｂと蓋板２２と補強材１８は省略されている。 In addition, the heat sink 10 has a plurality of sandwiching members 12 that are substantially quadrangular prism members arranged in parallel on the base 11 and the plurality of sandwiching members 12 as a preferable configuration for connecting the radiation fins 1 to the base 11. The first fixing member 14 and the second fixing member 15 provided at the opposed positions and the direction in which the plurality of holding members 12 are brought into close contact with each other and inserted into the insertion hole 14A of the first fixing member 14 (Z direction in the figure). And a pair of pressing members 19 that are respectively provided at both ends in the X-axis direction of the clamping member 12 for pressing and holding the plurality of clamping members 12 against the base body 11; A positioning screw 20 for fixing the pressing member 19 to the base 11 is provided. In the present embodiment, the first fixing member 14, the second fixing member 15, and the pressing screw 13 bring the plurality of sandwiching members 12 into close contact with each other in a state where the proximal end portion of the radiating fin 1 is inserted between the sandwiching members 12. By applying pressure to the plurality of clamping members 12 in the direction, it corresponds to a pressing means for clamping the radiating fins 1. Further, the pressing member 19 and the positioning screw 20 correspond to pressing holding means that presses and holds both ends of the plurality of clamping members 12 in a direction orthogonal to the direction in which the holding members 12 are in close contact with each other. In FIG. 3, the column 16, the protection plates 22 A and 22 B, the cover plate 22, and the reinforcing material 18 of the heat sink 10 are omitted.

図４に示すように、本実施形態に係る放熱フィン１は、炭素繊維からなる繊維層２と、炭素繊維を樹脂で補強した補強層３であって、繊維層２を挟んで設けられた一対の補強層３とを有する。 As shown in FIG. 4, the heat radiating fin 1 according to the present embodiment includes a fiber layer 2 made of carbon fiber and a reinforcing layer 3 in which the carbon fiber is reinforced with a resin, and a pair provided with the fiber layer 2 interposed therebetween. And a reinforcing layer 3.

繊維層２は、炭素繊維から構成される層である。繊維層２は、実質的に炭素繊維素材のみからなるものであるとみなせるものであればよく、炭素繊維のみからなるものだけでなく、実質的に炭素繊維による放熱性能と軽量化の効果を維持できる範囲で、別の材料が含まれているものも含む。繊維層２は、基端部において基体１１に接続され、基体１１から離れる方向に向かって伸びる形状である。このため、放熱フィン１が繊維層２を備えることにより、放熱フィン１中に繊維層２による良好な放熱経路を確保することができ、基体１１から離れる方向に迅速かつ効率よく熱を伝えることができる。 The fiber layer 2 is a layer composed of carbon fibers. The fiber layer 2 may be any material that can be regarded as being substantially made of only carbon fiber material, and is not only made of only carbon fiber, but substantially maintains the heat dissipation performance and weight reduction effect of carbon fiber. To the extent possible, includes materials that contain other materials. The fiber layer 2 has a shape that is connected to the base 11 at the base end and extends in a direction away from the base 11. For this reason, by providing the heat dissipation fin 1 with the fiber layer 2, a good heat dissipation path by the fiber layer 2 can be secured in the heat dissipation fin 1, and heat can be transferred quickly and efficiently in the direction away from the base 11. it can.

繊維層２は、良好な熱伝導性能を有する炭素繊維であればいかなる素材から構成してもよく、例えば特許文献１に示されるようなピッチを原料とするピッチ系炭素繊維から構成されてもよく、ポリアクリロニトリル（ＰＡＮ）を原料とするＰＡＮ系炭素繊維から構成されてもよい。本実施形態においては、繊維層２はピッチ系炭素繊維からなる。 The fiber layer 2 may be made of any material as long as it is a carbon fiber having good heat conduction performance. For example, the fiber layer 2 may be made of a pitch-based carbon fiber using a pitch as a raw material as shown in Patent Document 1. , And PAN-based carbon fiber made from polyacrylonitrile (PAN). In the present embodiment, the fiber layer 2 is made of pitch-based carbon fiber.

また、繊維層２に含まれる炭素繊維の伸びる方向は、基体１１から離れる方向である図３に示すＹ軸方向に略平行に構成されている。このように、繊維層２に含まれる繊維の方向が基体１１から離れる方向に平行になるように放熱フィンを構成した場合には、基体１１から離れる方向と繊維層２の炭素繊維の伸びる方向が一致しているため、繊維層２の炭素繊維の伸びる方向である基体１１から離れる方向により迅速に熱を伝達することができる。また、ヒートシンクの冷却対象物の種類や使用目的に応じて、繊維層２を複数の方向に熱を伝達しやすくしたい場合には、炭素繊維の方向を、熱を伝達したい各方向に向かうように任意に組み合わせて繊維層２を形成してもよい。 Further, the extending direction of the carbon fibers contained in the fiber layer 2 is configured substantially parallel to the Y-axis direction shown in FIG. Thus, when the radiation fin is configured so that the direction of the fibers contained in the fiber layer 2 is parallel to the direction away from the base 11, the direction away from the base 11 and the direction in which the carbon fibers of the fiber layer 2 extend extend. Since they coincide with each other, heat can be quickly transferred in a direction away from the base body 11, which is the direction in which the carbon fibers of the fiber layer 2 extend. Also, depending on the type of heat sink cooling object and the purpose of use, when it is desired to transfer heat to the fiber layer 2 in a plurality of directions, the direction of the carbon fiber is directed to each direction in which heat is to be transferred. You may form the fiber layer 2 combining arbitrarily.

また、高い放熱性能を得るために、繊維層２の厚さを大きくすることが好ましい。また、放熱フィン１の形状の保持、軽量化、低コスト化のためには、繊維層２の厚さを小さくすることが好ましい。ここでは、繊維層２を約０．２ｍｍとしている。例えば、繊維層２を約０．０５ｍｍ以上の厚さとすることができる。このように、所望の放熱性能を維持可能な範囲で繊維層２の厚さを小さくすることにより、高い放熱性能を実現しつつ、放熱フィン１の省スペース化、軽量化、低コスト化を図ることができる。 In order to obtain high heat dissipation performance, it is preferable to increase the thickness of the fiber layer 2. In addition, it is preferable to reduce the thickness of the fiber layer 2 in order to maintain the shape of the radiating fin 1, reduce the weight, and reduce the cost. Here, the fiber layer 2 is about 0.2 mm. For example, the fiber layer 2 can have a thickness of about 0.05 mm or more. As described above, by reducing the thickness of the fiber layer 2 within a range in which desired heat dissipation performance can be maintained, high heat dissipation performance is achieved, and space saving, weight reduction, and cost reduction of the heat dissipation fin 1 are achieved. be able to.

補強層３は、炭素繊維と樹脂から構成される層であって、複数の炭素繊維間に樹脂を含浸させて強化したものである。補強層３は、複数の炭素繊維間に樹脂を含浸させて強化されたものであればよく、例えば、いわゆる炭素繊維強化樹脂、あるいは、炭素繊維強化樹脂となる前の炭素繊維に樹脂を含浸させた成型用中間材料であるプリプレグとすることができる。また、補強層３は、実質的に複数の炭素繊維間に樹脂を含浸させて強化したとみなせるものであれば、炭素繊維と樹脂のみからなるものだけでなく、実質的に炭素繊維に樹脂による放熱性能と軽量化と形状維持の効果を維持できる範囲で、別の材料が含まれているものも含む。 The reinforcing layer 3 is a layer composed of carbon fibers and a resin, and is reinforced by impregnating a resin between a plurality of carbon fibers. The reinforcing layer 3 only needs to be reinforced by impregnating a resin between a plurality of carbon fibers. For example, a so-called carbon fiber reinforced resin or a carbon fiber before becoming a carbon fiber reinforced resin is impregnated with a resin. A prepreg that is an intermediate material for molding can be obtained. Moreover, if the reinforcement layer 3 can be regarded as having been substantially impregnated by impregnating a resin between a plurality of carbon fibers, it is not only composed of carbon fibers and resin, but substantially carbon fibers are made of resin. Including the range in which other materials are included as long as the heat dissipation performance, weight reduction, and shape maintenance can be maintained.

また、本実施形態における放熱フィン１において、一対の補強層３が繊維層２を挟んで設けられている。このため、高い熱伝導率を有する繊維層２を好適に保持しつつ、放熱フィン１の外形を保持して、放熱フィン１の強度の確保と放熱フィン１内の熱伝達の速度の向上の両方を実現することができる。また、補強層３を炭素繊維強化樹脂とした場合には、放熱フィン１をより強固に保持することができる。また、補強層３をプリプレグとした場合には、補強層３を炭素繊維強化樹脂とした場合よりも補強層３の熱伝導率を高くすることができ、好適な放熱性能を実現することができる。 Moreover, in the radiation fin 1 in this embodiment, a pair of reinforcement layer 3 is provided on both sides of the fiber layer 2. For this reason, while suitably holding the fiber layer 2 having high thermal conductivity, the outer shape of the radiating fin 1 is maintained, and both the securing of the strength of the radiating fin 1 and the improvement of the heat transfer speed in the radiating fin 1 are achieved. Can be realized. Further, when the reinforcing layer 3 is made of a carbon fiber reinforced resin, the radiating fins 1 can be held more firmly. Further, when the reinforcing layer 3 is a prepreg, the thermal conductivity of the reinforcing layer 3 can be made higher than when the reinforcing layer 3 is a carbon fiber reinforced resin, and a suitable heat dissipation performance can be realized. .

また、補強層３に含まれる炭素繊維は、ピッチ系炭素繊維から構成されてもよく、ＰＡＮ系炭素繊維から構成されてもよい。また、放熱フィン１を構成する複数の補強層３は、ピッチ系の炭素繊維からなる層とＰＡＮ系の炭素繊維からなる層を組み合わせて構成されたものであってもよい。 Moreover, the carbon fiber contained in the reinforcement layer 3 may be comprised from a pitch-type carbon fiber, and may be comprised from a PAN-type carbon fiber. The plurality of reinforcing layers 3 constituting the radiating fin 1 may be configured by combining a layer made of pitch-based carbon fibers and a layer made of PAN-based carbon fibers.

本実施形態においては、一対の補強層３はピッチ系炭素繊維からなり、補強層３の炭素繊維の伸びる方向は、基体１１から離れる方向である図３に示すＹ軸方向に略平行に構成されている。補強層３は、炭素繊維間に充填された樹脂の影響を受けて、繊維層２よりも放熱性能はやや劣るものの、補強層３に内包される炭素繊維による放熱性能を有するものである。このため、補強層３に含まれる炭素繊維によって、熱を伝達したい方向である基体１１から離れる方向に向かってより迅速に熱を伝達してより放熱性能を高めることができる。また、ヒートシンクの冷却対象物の種類や使用目的に応じて、補強層３を複数の方向に熱を伝達しやすくしたい場合には、炭素繊維の方向を、熱を伝達したい各方向に向かうように任意に組み合わせて補強層３を形成してもよい。 In the present embodiment, the pair of reinforcing layers 3 are made of pitch-based carbon fibers, and the carbon fiber extending directions of the reinforcing layers 3 are configured to be substantially parallel to the Y-axis direction shown in FIG. ing. The reinforcing layer 3 is influenced by the resin filled between the carbon fibers and has a heat dissipation performance due to the carbon fibers included in the reinforcement layer 3, although the heat dissipation performance is slightly inferior to that of the fiber layer 2. For this reason, with the carbon fiber contained in the reinforcing layer 3, heat can be transmitted more quickly in the direction away from the base body 11, which is the direction in which heat is to be transmitted, and the heat dissipation performance can be further enhanced. In addition, depending on the type of cooling object of the heat sink and the purpose of use, when it is desired to transmit heat to the reinforcing layer 3 in a plurality of directions, the direction of the carbon fiber is directed to each direction in which heat is to be transmitted. You may form the reinforcement layer 3 combining arbitrarily.

また、ここでは、補強層３と繊維層２の全ての層の厚みをそれぞれ約０．２ｍｍとしている。放熱性能を高めるためには、放熱フィン１の外形を保持できる範囲内で補強層３に対してできるだけ繊維層２の割合を大きくすることが好ましい。このように、補強層３を、放熱フィン１の外形を保持できる範囲内でできるだけ小さな厚みとなるように構成することにより、高い放熱性能を実現するとともに、放熱フィン１の外形を好適に保持することができる。また、好適に放熱フィン１の軽量化を図ることができる。 Here, the thicknesses of all layers of the reinforcing layer 3 and the fiber layer 2 are each set to about 0.2 mm. In order to improve the heat dissipation performance, it is preferable to increase the ratio of the fiber layer 2 to the reinforcing layer 3 as much as possible within a range in which the outer shape of the heat dissipation fin 1 can be maintained. As described above, the reinforcing layer 3 is configured to have a thickness as small as possible within a range in which the outer shape of the radiating fin 1 can be held, thereby realizing high heat radiating performance and preferably holding the outer shape of the radiating fin 1. be able to. Moreover, weight reduction of the radiation fin 1 can be achieved suitably.

なお、補強層３の樹脂の割合は、放熱フィン１の外形を保持できる範囲内でできるだけ小さいほうが好ましい。このことにより、放熱フィン１のさらなる軽量化とより高い放熱性能を実現することができる。例えば、補強層３の炭素繊維と樹脂の比率を８：２〜７：３とすることができる。 In addition, the ratio of the resin of the reinforcing layer 3 is preferably as small as possible within a range in which the outer shape of the radiating fin 1 can be maintained. Thereby, further weight reduction and higher heat dissipation performance of the radiation fin 1 can be realized. For example, the ratio of the carbon fiber and the resin of the reinforcing layer 3 can be 8: 2 to 7: 3.

また、放熱フィン１は、上記繊維層２を補強層３でサンドイッチした構造を有するものであれば、さらなる層を備えてもよく、繊維層２を補強層３でサンドイッチした構造を複数備えてもよい。例えば、図１に係るヒートシンク１０は、図４に示す３層構成の放熱フィン１に代えて、補強層３、繊維層２、補強層３、繊維層２、補強層３の順に５層構成とした放熱フィン１を備えるようにしてもよい。また、例えば、補強層、繊維層以外にさらなる保護層など任意の層を任意の厚みで任意の数設けてもよい。また、本実施形態のように、放熱フィン１を０．４ｍｍ−１ｍｍの厚さの薄板形状とした場合には、ヒートシンク１０内に放熱フィン１を互いに適切に離間しつつ多数配置することができ、ヒートシンク１０の放熱性能をより高めることができる。 Further, if the heat dissipating fin 1 has a structure in which the fiber layer 2 is sandwiched between the reinforcing layers 3, the heat dissipating fin 1 may include a further layer, or may include a plurality of structures in which the fiber layer 2 is sandwiched between the reinforcing layers 3. Good. For example, the heat sink 10 according to FIG. 1 has a five-layer configuration in the order of a reinforcing layer 3, a fiber layer 2, a reinforcing layer 3, a fiber layer 2, and a reinforcing layer 3, instead of the three-layer heat dissipating fin 1 shown in FIG. The radiating fin 1 may be provided. Further, for example, an arbitrary number of arbitrary layers such as a protective layer other than the reinforcing layer and the fiber layer may be provided with an arbitrary thickness. Further, when the radiating fins 1 have a thin plate shape with a thickness of 0.4 mm to 1 mm as in this embodiment, a large number of radiating fins 1 can be arranged in the heat sink 10 while being appropriately separated from each other. The heat dissipation performance of the heat sink 10 can be further enhanced.

また、繊維層２と補強層３を任意の枚数分重ねて放熱フィン１を形成する場合に、発熱体の接続される部分がいつも固定されている場合など、熱を伝えたい方向が既知である場合には、各繊維層２と補強層３の炭素繊維の方向を、熱を伝えたい方向に一致させることが好ましい。一方、発熱体の接続される部分が変動する場合など、熱を伝えたい方向が複数存在する場合には、各層の炭素繊維の伸びる方向を異ならせてもよい。 In addition, when the heat radiation fin 1 is formed by stacking an arbitrary number of fiber layers 2 and reinforcing layers 3, the direction in which heat is to be transmitted is known, such as when the portion to which the heating element is connected is always fixed. In this case, it is preferable that the directions of the carbon fibers of each fiber layer 2 and the reinforcing layer 3 coincide with the direction in which heat is to be transmitted. On the other hand, when there are a plurality of directions in which heat is to be transmitted, such as when the portion to which the heating element is connected fluctuates, the directions in which the carbon fibers in each layer extend may be different.

本実施形態における放熱フィン１の製造方法を説明する。まず、Ｘ軸方向の長さ２５５ｍｍ、Ｙ軸方向の長さ１５５ｍｍ、Ｚ軸方向の長さ（厚み）０．２ｍｍの矩形の１枚のピッチ系炭素繊維シートと、同形状のピッチ系炭素繊維シートに樹脂を含浸した２枚のプリプレグシートとを用意し、プリプレグシート、ピッチ系炭素繊維シート、プリプレグシートの順番に重ねて配置する。なお、炭素繊維シートとプリプレグシートは、各シートを構成する炭素繊維の方向が同一方向となるように重ねられて配置されている。そして、６０分間１３０°Ｃに加熱しつつプレスする（２００ｔ）。その後、１０℃の水で約３０分間冷却することにより、放熱フィン１が製造される。上記のように、放熱フィンを製造した場合には、簡易な工程で低コストに放熱フィン１を形成できる。 The manufacturing method of the radiation fin 1 in this embodiment is demonstrated. First, one rectangular pitch-based carbon fiber sheet having a length of 255 mm in the X-axis direction, a length of 155 mm in the Y-axis direction, and a length (thickness) of 0.2 mm in the Z-axis direction, and a pitch-based carbon fiber having the same shape Two sheets of a prepreg sheet impregnated with resin are prepared, and the prepreg sheet, the pitch-based carbon fiber sheet, and the prepreg sheet are stacked in this order. Note that the carbon fiber sheet and the prepreg sheet are arranged so that the directions of the carbon fibers constituting each sheet are the same. Then, pressing is performed while heating to 130 ° C. for 60 minutes (200 t). Then, the radiation fin 1 is manufactured by cooling for about 30 minutes with 10 degreeC water. As described above, when the radiating fin is manufactured, the radiating fin 1 can be formed at a low cost by a simple process.

なお、放熱フィン１は、繊維層２を一対の補強層３でサンドイッチした構造を備えた放熱フィン１を得られるものであれば、任意の製造方法を適用可能である。例えば、プリプレグシート、炭素繊維シート、プレプリグシートの順に重ねて配置した３枚のシートを、オートクレーブ成形により加熱してプレプリグシートを硬化させて炭素繊維強化樹脂とすることにより、放熱フィンを製造してもよい。また、放熱フィン１の補強層３をプリプレグシートによって構成してもよい。この場合には、例えば、プリプレグシート、炭素繊維シート、プリプレグシートを、この順に重ねて配置し、繊維層２と補強層３との間を所望の熱伝導率を備えた熱伝導性樹脂などで接着することにより放熱フィン１を製造することができる。 In addition, as long as the radiation fin 1 can obtain the radiation fin 1 provided with the structure which sandwiched the fiber layer 2 with the pair of reinforcement layers 3, arbitrary manufacturing methods are applicable. For example, heat radiation fins are manufactured by heating three sheets of prepreg sheets, carbon fiber sheets, and prepreg sheets that are stacked in this order to cure the prepreg sheets by carbonization to form carbon fiber reinforced resin. May be. Moreover, you may comprise the reinforcement layer 3 of the radiation fin 1 with a prepreg sheet. In this case, for example, a prepreg sheet, a carbon fiber sheet, and a prepreg sheet are arranged in this order, and a thermal conductive resin having a desired thermal conductivity is provided between the fiber layer 2 and the reinforcing layer 3. The radiation fin 1 can be manufactured by bonding.

以下に、放熱フィン１を基体１１に接続するための好ましい構成について以下に説明する。 Below, the preferable structure for connecting the thermal radiation fin 1 to the base | substrate 11 is demonstrated below.

図３，５などに示すように、ヒートシンク１０は、基体１１の各部材に熱伝導可能に接続するための接続面上に、Ｚ方向に並列配置された略四角柱形状の複数の挟持部材１２と、基体１１上のＺ軸方向の一端部に固定された略四角柱形状の第１固定部材１４と、基体１１上のＺ軸方向の他端部に固定され、第１固定部材１４と略平行に延びる略四角柱形状の第２固定部材１５とを備える。第１固定部材１４と第２固定部材１５はＺ軸方向に複数の挟持部材１２を挟んで対向する位置に設けられている。第１固定部材１４にはＺ軸方向に貫通する２つの挿通孔１４Ｃが設けられている。隣接する挟持部材１２の間に各放熱フィン１の所定の幅の基端部をそれぞれ挿入した状態で、押圧ネジ１３を２つの挿通孔１４Ｃにそれぞれ挿入して締め付けると、押圧ネジ１３のネジ先が挟持部材１２（図５右端の挟持部材１２）の側面に図５におけるＺ軸方向の負の向きに押しつけられる。これによって、複数の挟持部材１２が互いに密着する向きに（図５におけるＺ軸方向の負の向きに）押圧されて、複数の挟持部材１２の間隔が狭められることにより放熱フィン１の基端部を挟持する。 As shown in FIGS. 3 and 5, the heat sink 10 has a plurality of substantially quadrangular prism-shaped sandwiching members 12 arranged in parallel in the Z direction on a connection surface for connecting to each member of the base body 11 so as to allow heat conduction. A first fixing member 14 having a substantially quadrangular prism shape fixed to one end portion in the Z-axis direction on the base body 11 and a first fixing member 14 fixed to the other end portion in the Z-axis direction on the base body 11. And a second fixing member 15 having a substantially quadrangular prism shape extending in parallel. The 1st fixing member 14 and the 2nd fixing member 15 are provided in the position which opposes on both sides of the several clamping member 12 in the Z-axis direction. The first fixing member 14 is provided with two insertion holes 14C penetrating in the Z-axis direction. When the pressing screws 13 are inserted into the two insertion holes 14C and tightened with the base ends of the respective radiating fins 1 inserted between the adjacent clamping members 12, the screw tips of the pressing screws 13 are inserted. Is pressed against the side surface of the clamping member 12 (the clamping member 12 at the right end in FIG. 5) in the negative direction in the Z-axis direction in FIG. Accordingly, the plurality of clamping members 12 are pressed in a direction in close contact with each other (in the negative direction in the Z-axis direction in FIG. 5), and the interval between the plurality of clamping members 12 is narrowed, whereby the base end portion of the radiating fin 1. Pinch.

本実施形態によれば、基体１１上に略四角柱部材である複数の挟持部材１２を並列配置し、挟持部材１２の間に放熱フィン１の基端部を挿入した状態で、複数の挟持部材１２を互いに密着させる方向に複数の挟持部材１２に圧力を加える押圧手段を備えたことにより、簡易な構成により、放熱フィン１をしっかりと当接させて挟持することができる。また、挟持部材１２を放熱フィン１の所定の幅の基端部に押し当てて挟持することにより、挟持部材１２と放熱フィン１とが当接する面積を確保して、放熱フィン１の厚みを小さくした場合でも好適に放熱フィン１を保持することができる。また、基体１１に平坦な接続面を設けて、平坦な面に略四角柱部材である複数の挟持部材１２を並列配置し、挟持部材１２の間に放熱フィン１を挟持しているため、基体１１から略垂直方向に延びるように放熱フィン１を固定して、基体１１から離れる方向に好適に熱伝導効率を高めることができる。 According to the present embodiment, a plurality of sandwiching members 12 are arranged in parallel on the base 11 and the base end portion of the radiating fin 1 is inserted between the sandwiching members 12. Since the pressing means for applying pressure to the plurality of holding members 12 in the direction in which the 12 is brought into close contact with each other, the radiation fins 1 can be held firmly and held with a simple configuration. Further, by pressing and holding the clamping member 12 against the base end portion of the radiating fin 1 having a predetermined width, an area where the clamping member 12 and the radiating fin 1 are in contact with each other is secured, and the thickness of the radiating fin 1 is reduced. Even in this case, the heat radiation fin 1 can be suitably held. Further, since the base 11 is provided with a flat connection surface, a plurality of sandwiching members 12 that are substantially quadrangular prism members are arranged in parallel on the flat surface, and the radiating fins 1 are sandwiched between the sandwiching members 12. The heat dissipating fins 1 are fixed so as to extend in a substantially vertical direction from 11, so that the heat conduction efficiency can be suitably increased in the direction away from the base 11.

また、挟持部材１２は高い熱伝導率を有するアルミニウム素材から構成されている。このように、高い熱伝導率を有する素材で構成される挟持部材１２を基体１１に固定し、挟持部材１２を密着させて放熱フィン１をすることにより、挟持部材１２を介して基体１１から放熱フィン１に好適に熱を伝えることができ、ヒートシンク１０の放熱性能をより高めることができる。 The clamping member 12 is made of an aluminum material having a high thermal conductivity. In this way, the holding member 12 made of a material having a high thermal conductivity is fixed to the base 11, and the heat dissipation fins 1 are brought into close contact with the holding member 12, thereby radiating heat from the base 11 through the holding member 12. Heat can be suitably transmitted to the fin 1, and the heat dissipation performance of the heat sink 10 can be further enhanced.

また、さらに放熱性能を高めるために、放熱フィン１の基端部において補強層３の樹脂を部分的に除去して補強層３の炭素繊維を露出させることが好ましい。この場合には、挟持部材１２に補強層３の炭素繊維を直接当接させることができるため、補強層３の炭素繊維の伸びる方向に効率良く熱を伝えることができ、さらに放熱効果を向上させることができる。 In order to further improve the heat dissipation performance, it is preferable to partially remove the resin of the reinforcing layer 3 at the base end portion of the heat dissipating fin 1 to expose the carbon fibers of the reinforcing layer 3. In this case, since the carbon fibers of the reinforcing layer 3 can be brought into direct contact with the sandwiching member 12, heat can be efficiently transmitted in the direction in which the carbon fibers of the reinforcing layer 3 extend, and the heat dissipation effect is further improved. be able to.

押圧手段は、基体１１上に略四角柱部材である複数の挟持部材１２を並列配置し、挟持部材１２の間に放熱フィン１の基端部を挿入した状態で、複数の挟持部材１２を互いに密着させる方向に複数の挟持部材１２に圧力を加えることができるものであれば、任意の構成としてよい。また、本実施形態では、複数の挟持部材を密着させる方向に複数の挟持部材１２を片側から押圧する構成としたが、複数の挟持部材を密着させる方向に複数の挟持部材を両側から押圧する構成としてもよい。また、本実施形態は、第１固定部材１４と第２固定部材１５のそれぞれを２つの角柱形状の部材からなるものとしたが、例えば、１つの角柱形状の部材からなるものとしてもよい。 The pressing means includes a plurality of sandwiching members 12 that are substantially quadrangular prism members arranged in parallel on the base 11, and the plurality of sandwiching members 12 are connected to each other in a state in which the base end portion of the radiating fin 1 is inserted between the sandwiching members 12. Any structure may be used as long as pressure can be applied to the plurality of sandwiching members 12 in the direction of close contact. In the present embodiment, the plurality of clamping members 12 are pressed from one side in the direction in which the plurality of clamping members are in close contact, but the plurality of clamping members are pressed in both directions in the direction in which the plurality of clamping members are in close contact. It is good. In the present embodiment, each of the first fixing member 14 and the second fixing member 15 is made of two prismatic members, but may be made of, for example, one prismatic member.

なお、本実施例においては、第１固定部材１４は２つの四角柱形状の第１部材１４Ａ、第２部材１４Ｂから構成され、第１部材１４Ａ、第２部材１４Ｂの間に保護板２２Ａの基端部を挿入して挟持した状態で第１部材１４Ａに第２部材１４Ｂをネジ止めして固定している。また、第２固定部材１５は２つの角柱形状の第１部材１５Ａ、第２部材１５Ｂから構成され、第１部材１５Ａ、第２部材１５Ｂの間に保護板２２Ｂの基端部を挿入して挟持した状態で、第１部材１５Ａに第２部材１５Ｂをネジ止めして固定している。なお、上記実施形態に限定されず、第１固定部材１４と第２固定部材１５に保護板２２Ａ、２２Ｂを保持する機能を備えないものとして構成してもよく、保護板２２Ａ、２２Ｂを省略してもよい。 In the present embodiment, the first fixing member 14 is constituted by two quadrangular prism-shaped first members 14A and second members 14B, and the base of the protective plate 22A is interposed between the first members 14A and the second members 14B. The second member 14B is screwed and fixed to the first member 14A with the end portion inserted and clamped. The second fixing member 15 includes two prismatic first member 15A and second member 15B, and the base end portion of the protective plate 22B is inserted and sandwiched between the first member 15A and the second member 15B. In this state, the second member 15B is screwed and fixed to the first member 15A. In addition, it is not limited to the said embodiment, You may comprise as what does not have the function to hold | maintain protection board 22A, 22B in the 1st fixing member 14 and the 2nd fixing member 15, and omits protection board 22A, 22B. May be.

また、図３、６などに示すように、ヒートシンク１０は、さらに、押付部材１９が、基体１１のＸ軸方向（複数の挟持部材１２が互いに密着する方向に直交する方向）の両端部にそれぞれ配置されている。押付部材１９は、断面Ｌ字型形状の長手部材であり、基体１１に固定される基部１９Ａと、基部１９Ａから略垂直方向に延び、複数の挟持部材１２の端部を基体１１側（図６におけるＹ軸方向負の向き）に押し付けて固定する押圧部１９Ｂからなる。基部１９Ａには、位置決め孔１９Ｃが設けられている。図３、図６に示すように、押圧部１９Ｂを基体１１上に並列配置された複数の挟持部材１２のＸ軸方向の一方の端部に当接させるとともに、基部１９Ａを基体１１のＸ軸方向の側壁に当接する位置に配置し、位置決めネジ２０を基部１９Ａの位置決め孔１９Ｃに挿通して、基体１１のＸ軸方向の側壁に設けられた不図示のネジ穴に螺合することにより、押付部材１９が基体１１に固定される。 Moreover, as shown in FIGS. 3 and 6, the heat sink 10 further includes pressing members 19 at both ends of the base 11 in the X-axis direction (a direction orthogonal to the direction in which the plurality of holding members 12 are in close contact with each other). Has been placed. The pressing member 19 is an elongate member having an L-shaped cross section, and extends in a substantially vertical direction from a base portion 19A fixed to the base body 11 and the base portion 19A, and the ends of the plurality of clamping members 12 are on the base body 11 side (FIG. 6). In the negative direction in the Y-axis direction). A positioning hole 19C is provided in the base 19A. As shown in FIGS. 3 and 6, the pressing portion 19 B is brought into contact with one end portion in the X-axis direction of the plurality of sandwiching members 12 arranged in parallel on the base body 11, and the base portion 19 A is set to the X-axis of the base body 11. By placing the positioning screw 20 through the positioning hole 19C of the base portion 19A and screwing it into a screw hole (not shown) provided in the X-axis direction side wall of the base 11, The pressing member 19 is fixed to the base body 11.

また、本実施形態において、位置決めネジ２０を固定位置まで締め付けると、押圧部１９Ｂが複数の挟持部材１２の端部を基体１１に押し付けた状態（図６におけるＹ軸方向負の向き押しつけた状態）に相対的に位置決めされるように、位置決め孔１９Ｃが設けられている。このため、位置決めネジ２０を固定位置まで締め付けることにより、押圧部１９Ｂにより複数の挟持部材１２を基体１１に好適に密着させて押圧保持することができる。また、本実施形態において、押付部材１９を位置決め固定するためのネジとして、皿ネジを用いている。このように、ネジ頭部分にネジ頭側に向かう程径が大きくなる略円錐台形状を有する位置決めネジ２０を用いて基部１９Ａと基体１１を固定することにより、位置決めネジ２０を締め付けるほど位置決め孔１９Ｃと位置決めネジ２０の円錐台部分との間隙が小さくなり、押圧部１９Ｂにより複数の挟持部材１２を基体１１により好適に密着させて押圧保持することができる。 Further, in this embodiment, when the positioning screw 20 is tightened to the fixed position, the pressing portion 19B presses the end portions of the plurality of holding members 12 against the base body 11 (a state where the Y-axis direction negative direction in FIG. 6 is pressed). A positioning hole 19 C is provided so as to be relatively positioned with respect to each other. For this reason, by tightening the positioning screw 20 to the fixed position, the plurality of holding members 12 can be suitably brought into close contact with the base 11 and held by the pressing portion 19B. In the present embodiment, a countersunk screw is used as a screw for positioning and fixing the pressing member 19. In this way, by fixing the base portion 19A and the base body 11 using the positioning screw 20 having a substantially truncated cone shape whose diameter increases toward the screw head side toward the screw head portion, the positioning hole 19C increases as the positioning screw 20 is tightened. And a gap between the positioning screw 20 and the truncated cone portion can be reduced, and the plurality of holding members 12 can be suitably brought into close contact with the base 11 by the pressing portion 19B and can be pressed and held.

なお、上記実施形態に拘わらず、押付保持手段を複数の挟持部材１２の両端部を基体１１に押し付けて保持することができる任意の構成としてよい。例えば、皿ネジの替わりに、他のネジを用いてもよい。また、例えば、基部１９Ａや押圧部１９Ｂは、挟持部材１２を基体１１に固定できる構成であれば、任意の形状としてよく、複数の部品により構成してもしてよい。 Regardless of the embodiment described above, the pressing and holding means may have any configuration that can hold both ends of the plurality of holding members 12 against the base body 11. For example, other screws may be used instead of the countersunk screws. Further, for example, the base portion 19A and the pressing portion 19B may have any shape as long as the holding member 12 can be fixed to the base body 11, and may be configured by a plurality of parts.

また、本実施形態において、放熱フィン１は隣接する挟持部材１２に挟持された状態で、放熱フィン１の基端部側の端面と、挟持部材１２が基体１１に接する面とが、挟持部材１２を基体１１に押圧する方向であるＹ軸方向に略同一の位置に配置されている。このため、挟持部材１２を基体１１に押圧して固定することにより、挟持部材１２に挟持された放熱フィン１の繊維層２の端面を基体１１に好適に密着させて、基体１１から繊維層２に好適に熱を伝えることができ、放熱効果をより高めることができる。なお、放熱フィン１は、ヒートシンク１０の基体１１から放熱フィン１の繊維層２に熱を伝えることができるように固定されるものであれば、他の方法で固定されてよい。 Further, in the present embodiment, the radiating fin 1 is sandwiched between the adjacent clamping members 12, and the end surface on the proximal end side of the radiating fin 1 and the surface where the clamping member 12 is in contact with the base body 11 are the clamping member 12. Are arranged at substantially the same position in the Y-axis direction, which is the direction in which the substrate 11 is pressed. For this reason, by pressing and fixing the clamping member 12 to the base body 11, the end surface of the fiber layer 2 of the radiating fin 1 clamped by the clamping member 12 is preferably brought into close contact with the base body 11, and the base layer 11 to the fiber layer 2. Therefore, heat can be suitably transmitted, and the heat dissipation effect can be further enhanced. The heat radiating fin 1 may be fixed by other methods as long as it is fixed so that heat can be transmitted from the base 11 of the heat sink 10 to the fiber layer 2 of the heat radiating fin 1.

以上に示すように、本実施形態に係る投光器１００は、炭素繊維からなる繊維層２と、炭素繊維を樹脂で補強した補強層３であって、繊維層２を挟んで設けられた一対の補強層３とを有する放熱フィン１と、放熱フィン１に接続される基体１１とを有するヒートシンク１０を備えたことにより、放熱フィンの外形を保持しつつ、放熱フィン内に高い熱伝導率を有する繊維層による放熱経路を確保することができる。このため、基体からの熱を基体から離れる方向に迅速且つ良好に伝えることができ、熱伝達効率を向上させて放熱フィン全体に迅速かつ良好に熱を行き渡らせて良好な放熱性能を実現することができる。また、金属等で放熱フィン１を構成する場合よりも、放熱フィン１を軽量化することができる。 As described above, the projector 100 according to the present embodiment includes the fiber layer 2 made of carbon fiber and the reinforcement layer 3 in which the carbon fiber is reinforced with a resin, and a pair of reinforcements provided with the fiber layer 2 interposed therebetween. By providing the heat sink 10 having the heat radiation fin 1 having the layer 3 and the base body 11 connected to the heat radiation fin 1, a fiber having high thermal conductivity in the heat radiation fin while maintaining the outer shape of the heat radiation fin. A heat radiation path by the layer can be secured. For this reason, heat from the base body can be transferred quickly and satisfactorily in the direction away from the base body, and heat transfer efficiency can be improved so that heat can be quickly and satisfactorily distributed throughout the heat dissipation fins to achieve good heat dissipation performance. Can do. Moreover, the heat radiation fin 1 can be reduced in weight compared with the case where the heat radiation fin 1 is comprised with a metal etc.

本実施形態では、図１に示すヒートシンク１０の例では、第１固定部材１４、第２固定部材１５、支柱１６など、放熱フィン１と保護板２２Ａ、２２Ｂ以外の構成のほぼ全てをアルミニウムで構成している。ヒートシンク１０を構成する各部材を上記のように軽量で熱伝導率の高い素材で構成することにより、好適に放熱性能を高めつつ、軽量化を図ることができる。このため、放熱対象の投光器１００の全体で２０ｋｇ程度の質量となるところ、本実施形態の構成にすることより、半分以下程度の質量に軽量化が見込まれる。 In the present embodiment, in the example of the heat sink 10 shown in FIG. 1, almost all of the configuration other than the heat radiation fin 1 and the protection plates 22A and 22B, such as the first fixing member 14, the second fixing member 15, and the support column 16, are made of aluminum. doing. By configuring each member constituting the heat sink 10 with a material that is lightweight and has high thermal conductivity as described above, it is possible to reduce the weight while suitably improving the heat dissipation performance. For this reason, when the mass of the projector 100 to be radiated is about 20 kg as a whole, the configuration of the present embodiment is expected to reduce the weight to about half or less.

なお、上記実施形態に限定されず、放熱フィン１の間隔、枚数、大きさなどを任意の構成としてよい。また、ヒートシンク１０全体としてその機能を発揮のできるものであれば、基体１１を、放熱フィン１に接続可能な任意の形状に構成することができ、熱伝導性の高い素材であれば、任意の素材で構成できる。また、同様に、ヒートシンク１０全体としてその機能を発揮できるものであれば、一部の部品を省略してもよく、新たな構成を追加してもよく、任意の構成することができる。 In addition, it is not limited to the said embodiment, The space | interval, the number of sheets, size, etc. of the radiation fin 1 are good as arbitrary structures. Moreover, if the heat sink 10 can exhibit its function as a whole, the base 11 can be configured in an arbitrary shape that can be connected to the radiating fins 1, and any material can be used as long as it has a high thermal conductivity. Can be composed of materials. Similarly, as long as the function of the heat sink 10 can be exhibited as a whole, some components may be omitted, a new configuration may be added, and an arbitrary configuration can be provided.

また、本実施形態に限定されず、様々なサイズの様々な種類の照明手段が搭載された投光器に、本実施形態の投光器を適用することができ、放熱対象の照明手段とヒートシンクを熱交換可能な任意の方法によって接続することができる。特に、発光ダイオードを用いた照明手段が搭載された投光器に、本実施形態の投光器を適用した場合には、軽量化、放熱性能の向上を好適に実現でき、投光器の高寿命化を図ることができる。 Further, the present invention is not limited to this embodiment, and the projector of this embodiment can be applied to a projector equipped with various types of illumination means of various sizes, and heat exchange can be performed between the illumination means to be radiated and the heat sink. It can be connected by any method. In particular, when the projector of this embodiment is applied to a projector equipped with lighting means using light emitting diodes, it is possible to suitably realize weight reduction and improvement of heat dissipation performance, and to increase the lifetime of the projector. it can.

以上説明した本発明は、この発明の精神および必須の特徴的事項から逸脱することなく他のいろいろな形態で実施することができる。したがって、本明細書に記載した実施例は例示的なものであり、これに限定して解釈されるべきものではない。 The present invention described above can be implemented in various other forms without departing from the spirit and essential features of the present invention. Accordingly, the examples described herein are illustrative and should not be construed as limiting.

１フィン
２繊維層
３補強層
１０ヒートシンク
１１基体
１２挟持部材
１３押圧ネジ
１４第１固定部材
１５第２固定部材
１９押付部材
２０位置決めネジ
１００投光器 DESCRIPTION OF SYMBOLS 1 Fin 2 Fiber layer 3 Reinforcement layer 10 Heat sink 11 Base body 12 Holding member 13 Press screw 14 First fixing member 15 Second fixing member 19 Pressing member 20 Positioning screw 100 Projector

Claims

炭素繊維からなる繊維層と、炭素繊維を樹脂で補強した補強層であって、前記繊維層を挟んで設けられた一対の補強層とを備えた放熱フィンと、
該放熱フィンに接続される基体とを有するヒートシンクを備えたことを特徴とする投光器。 A radiating fin comprising a fiber layer made of carbon fiber and a reinforcing layer obtained by reinforcing carbon fiber with a resin, and a pair of reinforcing layers provided across the fiber layer;
A projector having a heat sink having a base connected to the heat radiation fin.

前記繊維層は、該繊維層における前記炭素繊維の伸びる方向が前記基体から離れる方向に平行になるように構成されていることを特徴とする請求項１記載の投光器。 2. The projector according to claim 1, wherein the fiber layer is configured such that a direction in which the carbon fiber extends in the fiber layer is parallel to a direction away from the base.

前記ヒートシンクが、前記基体上に並列配置された略四角柱部材である複数の挟持部材と、前記挟持部材の間に前記放熱フィンの基端部を挿入した状態で、前記複数の挟持部材を互いに密着させる方向に前記複数の挟持部材に圧力を加えることにより、前記放熱フィンを挟持する押圧手段をさらに備えたことを特徴とする請求項１または２記載の投光器。 In the state where the heat sink is inserted in parallel with the base member of the radiating fin between the plurality of sandwiching members that are substantially quadrangular prism members arranged in parallel on the base, the plurality of sandwiching members 3. The projector according to claim 1, further comprising a pressing unit that clamps the heat dissipating fins by applying pressure to the plurality of clamping members in a close-contact direction. 4.

前記ヒートシンクが、前記密着させる方向に直交する方向において、前記複数の挟持部材の両端部を前記基体に押し付けて保持する押付保持手段をさらに備えたことを特徴とする請求項３記載の投光器。 The projector according to claim 3, further comprising pressing and holding means for pressing and holding both ends of the plurality of clamping members against the base in a direction orthogonal to the direction in which the heat sink is in close contact.