JP2008215702A - Loop-type heat pipe - Google Patents

Loop-type heat pipe Download PDF

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JP2008215702A
JP2008215702A JP2007053060A JP2007053060A JP2008215702A JP 2008215702 A JP2008215702 A JP 2008215702A JP 2007053060 A JP2007053060 A JP 2007053060A JP 2007053060 A JP2007053060 A JP 2007053060A JP 2008215702 A JP2008215702 A JP 2008215702A
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evaporator
pipe
condenser
reservoir
loop
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Satoru Sadahiro
哲 貞廣
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Fujikura Ltd
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Fujikura Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a loop-type heat pipe which exerts prescribed functions without degrading its performance even when an evaporator is vertically disposed or disposed on a bent portion. <P>SOLUTION: In this loop-type heat pipe comprising: the evaporator 103 for evaporating operating fluid; a condenser 107 for liquefying the evaporated gas; a vapor pipe 105 connected from the evaporator 103 to the condenser 107; a fluid return pipe 109 connected from the condenser 107 to the evaporator 103; and a reservoir portion 111 for reserving the operating fluid to be supplied to the evaporator 103 before the evaporator 103, the evaporator 103 comprises: a groove pipe 117 opened at its one end side and closed at the other end side by being communicated with the vapor pipe 105; a wick 119 inserted into the groove pipe 117; and a bayonet pipe 113 for supplying the operating fluid to the inside of the wick 119 and the reservoir portion 111, and at least a part of an inner wall surface of the reservoir portion 111 is provided with a water absorbing member 120 absorbing the operating fluid. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、ループヒートパイプ(LHP)およびキャピラリーポンプループ(CPL:Capillary Pumped Loop)等のループ型ヒートパイプに関する。   The present invention relates to a loop heat pipe such as a loop heat pipe (LHP) and a capillary pump loop (CPL).

ループ型ヒートパイプの種類として、ループヒートパイプ(LHP)やキャピラリーポンプループ(CPL)等が知られている。   Known types of loop heat pipes include a loop heat pipe (LHP) and a capillary pump loop (CPL).

例えば、LHP101は、図3に示されているように、水、アルコール、アンモニア等の作動液を蒸発させて気化する際の潜熱を利用して冷却する蒸発器103と、この蒸発器103で気化された気体を放熱して液化する凝縮器(Condenser)107と、蒸発器103で気化された気体を凝縮器107まで送る蒸気管(Vapor Line)105と、凝縮器107で液化された作動液を蒸発器103まで送る液戻り管(Liquid Line)109と、液戻り管109を介して蒸発器103まで供給される作動液を蒸発器103の手前で保留するリザーバ部111〔アキュームレータ、CC(Compensation Chamber)など〕とを備えている。図3のシステムでは、液戻り管109の先端に、作動液を蒸発器103の内部に送り込むためのバイオネット管113が設けられている。また、蒸発器103とリザーバ部111は一体的に構成されている。   For example, as shown in FIG. 3, the LHP 101 is composed of an evaporator 103 that cools by using latent heat when evaporating and evaporating a working fluid such as water, alcohol, and ammonia, and the evaporator 103 vaporizes the LHP 101. The condenser 107 that dissipates the liquefied gas to liquefy it, the vapor pipe 105 that sends the gas vaporized by the evaporator 103 to the condenser 107, and the working fluid liquefied by the condenser 107 A liquid return pipe (Liquid Line) 109 to be sent to the evaporator 103, and a reservoir unit 111 [accumulator, CC (Compensation Chamber) for holding hydraulic fluid supplied to the evaporator 103 via the liquid return pipe 109 in front of the evaporator 103 ) Etc.]. In the system of FIG. 3, a bayonet tube 113 for feeding the working fluid into the evaporator 103 is provided at the tip of the liquid return tube 109. Further, the evaporator 103 and the reservoir unit 111 are integrally formed.

また、蒸発器103とリザーバ部111との間には、蒸発器103で気化された気体がリザーバ部111に逆戻りしないようにするための作動液逆流防止用のOリング115が装着されている。なお、LHP101の内部に投入される作動液としては、水、アルコール、アンモニア等がある。   In addition, an O-ring 115 for preventing backflow of hydraulic fluid is installed between the evaporator 103 and the reservoir unit 111 to prevent the gas evaporated by the evaporator 103 from returning to the reservoir unit 111. Note that the hydraulic fluid introduced into the LHP 101 includes water, alcohol, ammonia, and the like.

このような構成のLHP101では、蒸発器103が、周囲で発生した熱により加熱されると、作動液が蒸発器103内で気化し、このときの潜熱で周囲の温度を冷却する。蒸発器103内で生じた蒸気は蒸気管105を経て凝縮器107へ移動し、凝縮器107で放熱されることにより、蒸気が液体に戻される。この液体は液戻り管109を経て再びリザーバ部111と蒸発器103へ移動することになり、上記の作用を繰り返す。   In the LHP 101 having such a configuration, when the evaporator 103 is heated by the heat generated in the surroundings, the working fluid is vaporized in the evaporator 103, and the ambient temperature is cooled by the latent heat at this time. Vapor generated in the evaporator 103 moves to the condenser 107 through the vapor pipe 105 and is radiated by the condenser 107, whereby the vapor is returned to the liquid. This liquid moves again to the reservoir 111 and the evaporator 103 via the liquid return pipe 109, and repeats the above operation.

凝縮器107は、蒸気管105と液戻り管109が連通する管路107Aの外周に多数枚のフィン107Bを並列して設けた構成となっている。   The condenser 107 has a configuration in which a large number of fins 107B are provided in parallel on the outer periphery of a conduit 107A through which the steam pipe 105 and the liquid return pipe 109 communicate.

また、蒸発器103は、基本的には、例えば特許文献1の中で示されている原理と同様の構造を持ち、一端側を開口し且つ他端側を蒸気管105に連通して閉塞する円筒形状のグルーブ管117と、このグルーブ管117の円筒形状の内部に接触して挿入される円筒形状をなすと共にこの円筒形状の内部に作動液を供給するウィック119とを備えている。   Further, the evaporator 103 basically has a structure similar to the principle shown in, for example, Patent Document 1, and is open at one end side and is closed by communicating with the steam pipe 105 at the other end side. A cylindrical groove tube 117 and a wick 119 that forms a cylindrical shape that is inserted in contact with the cylindrical shape of the groove tube 117 and supplies hydraulic fluid to the cylindrical shape are provided.

なお、グルーブ管117の内周面には、グルーブ管117の長手方向に垂直な断面において円周方向に交互に凹凸形状をなし且つ前記長手方向に延伸されたグルーブ部121が備えられている。一方、ウィック119の外周面は、グルーブ管117のグルーブ部121の凸部の内周面に接触する構成であり、グルーブ部121の凹部が蒸気流路123となっている。   In addition, on the inner peripheral surface of the groove tube 117, a groove portion 121 is provided which has an uneven shape alternately in the circumferential direction in the cross section perpendicular to the longitudinal direction of the groove tube 117 and extends in the longitudinal direction. On the other hand, the outer peripheral surface of the wick 119 is configured to come into contact with the inner peripheral surface of the convex portion of the groove portion 121 of the groove tube 117, and the concave portion of the groove portion 121 serves as a steam flow path 123.

また、ウィック119の円筒形状の内部は、上述したリザーバ部111に連通し且つ前端が閉塞した液貯留室125として構成されている。また、液戻り管109に連通するバイオネット管113は、リザーバ部111の内部を経て、液貯留室125の前端部の少し手前まで挿入されている。これにより、液戻り管109から戻ってきた作動液は、バイオネット管113の前端から液貯留室125に供給され、バイオネット管113の前端から180°反転して液貯留室125とバイオネット管113の間を通過して、液貯留室125内に充満する状態となり、リザーバ部111に保留される。   In addition, the cylindrical interior of the wick 119 is configured as a liquid storage chamber 125 that communicates with the above-described reservoir unit 111 and whose front end is closed. Further, the bayonet tube 113 communicating with the liquid return tube 109 is inserted through the inside of the reservoir unit 111 to a little before the front end portion of the liquid storage chamber 125. As a result, the hydraulic fluid returned from the liquid return pipe 109 is supplied to the liquid storage chamber 125 from the front end of the bayonet pipe 113, and is inverted 180 ° from the front end of the bayonet pipe 113 so that the liquid storage chamber 125 and the bayonet pipe 113, the liquid storage chamber 125 is filled, and is held in the reservoir 111.

したがって、グルーブ管117が蒸発器103の周囲の熱で加熱されると、グルーブ管117の熱がグルーブ部121の凸部の内周面との接触部分からウィック119に熱伝導し、ウィック119が加熱され、その結果、液貯留室125からウィック119の内部に浸透した作動液が加熱されて気体になり、グルーブ管117のグルーブ部121、すなわち蒸気流路123を経て前述したように蒸気管105へ移動することになる。   Therefore, when the groove tube 117 is heated by the heat around the evaporator 103, the heat of the groove tube 117 is conducted from the contact portion with the inner peripheral surface of the convex portion of the groove portion 121 to the wick 119, and the wick 119 is As a result, the hydraulic fluid that has penetrated into the wick 119 from the liquid storage chamber 125 is heated to become a gas, and passes through the groove portion 121 of the groove tube 117, that is, the steam channel 123, as described above. Will be moved to.

なお、ウィック119には、例えば多孔質性の焼結金属体、金属繊維、ガラス繊維、ポリエチレン等の高分子体などが使用されている。   For the wick 119, for example, a porous sintered metal body, a metal fiber, a glass fiber, a polymer body such as polyethylene, or the like is used.

しかしながら、上述のように、蒸発器103にリザーバ部111を一体に形成したループ型ヒートパイプでは、図4に示すように蒸発器103を垂直に設置した場合、あるいは、図5に示すように曲がり部に蒸発器103を設置した場合に、蒸発器103が上側に位置し、リザーバ部111が下側に位置することになるため、リザーバ部111の上半部の内壁面111aが液渇き状態となりやすい。そのため、リザーバ部111が蒸発器103からの熱の影響を受けて温度上昇し、その結果、ヒートパイプの性能低下を招いたり、最悪の場合は動作停止につながるおそれがある。
特開2004−53062号公報
However, as described above, in the loop type heat pipe in which the reservoir unit 111 is integrally formed with the evaporator 103, when the evaporator 103 is installed vertically as shown in FIG. 4, or as shown in FIG. When the evaporator 103 is installed in the part, the evaporator 103 is located on the upper side and the reservoir part 111 is located on the lower side, so that the inner wall surface 111a of the upper half part of the reservoir part 111 is in a liquid-depleted state. Cheap. For this reason, the temperature of the reservoir unit 111 rises due to the influence of heat from the evaporator 103. As a result, the performance of the heat pipe may be reduced, or in the worst case, the operation may be stopped.
JP 2004-53062 A

本発明は、上記事情を考慮し、蒸発器を垂直に設置する場合や曲がり部に設置する場合でも、性能を落とさずに、所定の機能を発揮できるようにしたループ型ヒートパイプを提供することを目的とする。   In view of the above circumstances, the present invention provides a loop heat pipe that can exhibit a predetermined function without degrading performance even when the evaporator is installed vertically or in a bent portion. With the goal.

本願発明の一態様によれば、作動液を蒸発させて気化する際の潜熱を利用して冷却する蒸発器と、蒸発器で気化された気体を放熱して液化する凝縮器と、蒸発器と凝縮器を接続し、蒸発器で気化された気体を凝縮器まで送る蒸気管と、凝縮器と蒸発器を接続し、凝縮器で液化された作動液を蒸発器まで送る液戻り管と、蒸発器の端部に設けられ、凝縮器で液化されて液戻り管を経て蒸発器に供給される作動液を蒸発器の手前で保留するリザーバ部とを備えるループ型ヒートパイプにおいて、蒸発器は、一端側を開口し且つ他端側を蒸気管に連通して閉塞するグルーブ管と、グルーブ管の内部に挿入されたウィックと、ウィックの内部及びリザーバ部に作動液を供給するバイオネット管とを備え、リザーバ部の内壁面の少なくとも一部には、作動液を吸水する吸水性部材が配置されているループ型ヒートパイプであることを要旨とする。   According to one aspect of the present invention, an evaporator that cools by using latent heat when the working fluid is evaporated and vaporized, a condenser that dissipates and liquefies the gas vaporized by the evaporator, and an evaporator. A vapor pipe that connects the condenser and sends the gas vaporized by the evaporator to the condenser, a liquid return pipe that connects the condenser and the evaporator and sends the working liquid liquefied by the condenser to the evaporator, and evaporation In a loop heat pipe provided at the end of the evaporator, and having a reservoir section that holds the working liquid liquefied by the condenser and supplied to the evaporator via the liquid return pipe before the evaporator, the evaporator is A groove tube that opens at one end and is closed by communicating with the steam tube at the other end; a wick inserted into the groove tube; and a bayonet tube that supplies a working fluid to the inside of the wick and the reservoir. At least part of the inner wall surface of the reservoir. And summarized in that the water-absorbing member to absorb water liquid is loop heat pipe is disposed.

本発明によれば、蒸発器を垂直に設置する場合や曲がり部に設置する場合でも、性能を落とさずに、所定の機能を発揮できるようにしたループ型ヒートパイプを提供することができる。   ADVANTAGE OF THE INVENTION According to this invention, even when installing an evaporator vertically or when installing in a bending part, the loop type heat pipe which enabled it to exhibit a predetermined function can be provided, without reducing performance.

以下に図面を参照して、本発明の実施の形態を説明する。以下の図面の記載において、同一又は類似の部分には同一又は類似の符号で表している。但し、図面は模式的なものであり、厚みと平面寸法との関係、各層の厚みの比率等は現実のものとは異なる。したがって、具体的な厚みや寸法は以下の説明を照らし合わせて判断するべきものである。また、図面相互間においても互いの寸法の関係や比率が異なる部分が含まれていることは勿論である。   Embodiments of the present invention will be described below with reference to the drawings. In the following description of the drawings, the same or similar parts are denoted by the same or similar reference numerals. However, the drawings are schematic, and the relationship between the thickness and the planar dimensions, the ratio of the thickness of each layer, and the like are different from the actual ones. Therefore, specific thicknesses and dimensions should be determined in light of the following description. Moreover, it is a matter of course that portions having different dimensional relationships and ratios are included between the drawings.

(第1の実施の形態)
図1は、本発明の第1の実施の形態に係るループ型ヒートパイプの要部概略構成を示している。第1の実施の形態に係るループ型ヒートパイプの全体的な構成は、図3に示したものとほぼ同様であるので、全体の構成については、図3を用いて簡単に説明する。
(First embodiment)
FIG. 1 shows a schematic configuration of a main part of a loop heat pipe according to a first embodiment of the present invention. Since the overall configuration of the loop heat pipe according to the first embodiment is substantially the same as that shown in FIG. 3, the overall configuration will be briefly described with reference to FIG.

第1の実施の形態に係るループ型ヒートパイプは、作動液を蒸発させて気化する際の潜熱を利用して冷却する蒸発器103と、蒸発器103で気化された気体を放熱して液化する凝縮器107と、蒸発器103と凝縮器107を接続し、蒸発器103で気化された気体を凝縮器107まで送る蒸気管105と、凝縮器107と蒸発器103を接続し、凝縮器107で液化された作動液を蒸発器103まで送る液戻り管109と、蒸発器103の端部に設けられ、凝縮器107で液化されて液戻り管109を経て蒸発器103に供給される作動液を蒸発器103の手前で保留するリザーバ部111とを備える。蒸発器103は、一端側を開口し且つ他端側を蒸気管105に連通して閉塞するグルーブ管117と、グルーブ管117の内部に挿入されたウィック119と、ウィック119の内部及びリザーバ部111に作動液を供給するバイオネット管113とを備える。   The loop heat pipe according to the first embodiment liquefies the evaporator 103 that cools by using latent heat when the working liquid is evaporated and vaporizes, and releases the gas vaporized by the evaporator 103 to liquefy. The condenser 107, the evaporator 103 and the condenser 107 are connected, the vapor pipe 105 for sending the gas vaporized by the evaporator 103 to the condenser 107, the condenser 107 and the evaporator 103 are connected, and the condenser 107 A liquid return pipe 109 that sends the liquefied hydraulic fluid to the evaporator 103, and a hydraulic fluid that is provided at the end of the evaporator 103, is liquefied by the condenser 107, and is supplied to the evaporator 103 via the liquid return pipe 109. And a reservoir unit 111 that is reserved in front of the evaporator 103. The evaporator 103 includes a groove tube 117 that opens at one end and is closed by communicating with the steam tube 105 at the other end, a wick 119 inserted into the groove tube 117, the inside of the wick 119, and the reservoir unit 111. And a bayonet tube 113 for supplying a working fluid to the tube.

そして、このループ型ヒートパイプでは、特徴的な点として、図1に示すように、水渇き状態になりやすいリザーバ部111の内壁面111aの少なくとも一部には、作動液を吸水する吸水性部材120を備えている。吸水性部材120は、水、アルコール、アンモニア等の液体(作動液)を給水することができるウィック119と同じ部材が用いられる。そして、吸水性部材120は、リザーバ部111の内壁面111aと接触していることで、リザーバ内作動液を内壁面111aにつなぐ役割を果たしている。   In this loop heat pipe, as a characteristic point, as shown in FIG. 1, a water absorbing member that absorbs hydraulic fluid is provided on at least a part of the inner wall surface 111a of the reservoir portion 111 that is likely to be drought. 120. As the water absorbing member 120, the same member as the wick 119 that can supply liquid (working fluid) such as water, alcohol, ammonia, or the like is used. The water absorbing member 120 is in contact with the inner wall surface 111a of the reservoir portion 111, thereby playing a role of connecting the working fluid in the reservoir to the inner wall surface 111a.

この第1の実施の形態に係るループ型ヒートパイプの場合は、ウィック119の一部がリザーバ部111内に延長されて、吸水性部材120として利用されている。なお、ウィック119の材質としては、多孔質性の焼結金属体、金属繊維、ガラス繊維、ポリエチレン等の高分子体などが利用可能である。   In the case of the loop heat pipe according to the first embodiment, a part of the wick 119 is extended into the reservoir unit 111 and used as the water absorbing member 120. As a material of the wick 119, a porous sintered metal body, a metal fiber, a glass fiber, a polymer body such as polyethylene, or the like can be used.

第1の実施の形態に係るループ型ヒートパイプによれば、吸水性部材120がリザーバ部111の内壁面111aに接するように設けられているので、蒸発器103が垂直に設置されていても、リザーバ部111の内壁面111aを常に作動液で濡れた状態に保つことが可能なので、液渇き状態になることを防止することができる。したがって、蒸発器103からの熱の影響でリザーバ部111が加熱されるのを防ぐことができ、リザーバ部111が加熱されることによる性能低下や最悪の場合の動作停止を未然に回避することができる。   According to the loop heat pipe according to the first embodiment, since the water absorbing member 120 is provided so as to contact the inner wall surface 111a of the reservoir unit 111, even if the evaporator 103 is installed vertically, Since the inner wall surface 111a of the reservoir 111 can be kept wet with the working fluid at all times, it is possible to prevent the liquid from being depleted. Therefore, it is possible to prevent the reservoir unit 111 from being heated due to the influence of heat from the evaporator 103, and to avoid the performance degradation and the worst case operation stop due to the reservoir unit 111 being heated. it can.

また、第1の実施の形態に係るループ型ヒートパイプのように、グルーブ管117内に挿入したウィック119の一部をリザーバ部111内に延長して吸水性部材120として利用している場合、ウィック119の形状の変更のみで、部品点数を増やすことなく、上述の効果を奏することができる
(第2の実施の形態)
図2は、本発明の第2の実施形態のループ型ヒートパイプの要部概略構成を示している。このループ型ヒートパイプの蒸発器103は、曲がり部に設けられているので、リザーバ部111の形状が若干複雑になっている。
Further, as in the case of the loop heat pipe according to the first embodiment, when a part of the wick 119 inserted into the groove tube 117 is extended into the reservoir portion 111 and used as the water absorbing member 120, By only changing the shape of the wick 119, the above-described effects can be achieved without increasing the number of parts (second embodiment).
FIG. 2 shows a schematic configuration of a main part of a loop heat pipe according to the second embodiment of the present invention. Since the evaporator 103 of this loop heat pipe is provided at the bent portion, the shape of the reservoir portion 111 is slightly complicated.

このループ型ヒートパイプの特徴的な点は、湾曲したリザーバ部111の内部に、水渇き状態になりやすい内壁面111aに接するように吸水性部材122が設けられていることである。この場合の吸水性部材122は、ウィック119とは別部材として設けられている。具体的には、ノニオン/スルホン酸系樹脂、アクリル酸系樹脂、及びアクリル酸塩系樹脂等の高吸水性樹脂を用いることができる。   A characteristic point of this loop type heat pipe is that a water absorbing member 122 is provided inside the curved reservoir portion 111 so as to be in contact with the inner wall surface 111a that is prone to drought. In this case, the water absorbing member 122 is provided as a separate member from the wick 119. Specifically, a highly water-absorbing resin such as a nonion / sulfonic acid resin, an acrylic acid resin, and an acrylate resin can be used.

第2の実施の形態に係るループ型ヒートパイプによれば、吸水性部材122がリザーバ部111の内壁面111aに接するように設けられているので、蒸発器103が曲がり部に設置されていても、リザーバ部111の内壁面111aを常に作動液で濡れた状態に保つことが可能なので、液渇き状態になることを防止することができる。したがって、蒸発器103からの熱の影響でリザーバ部111が加熱されるのを防ぐことができ、リザーバ部111が加熱されることによる性能低下や最悪の場合の動作停止を未然に回避することができる。   According to the loop heat pipe according to the second embodiment, since the water absorbing member 122 is provided so as to be in contact with the inner wall surface 111a of the reservoir unit 111, even if the evaporator 103 is installed at the bent part. Since the inner wall surface 111a of the reservoir 111 can be kept wet with the working fluid at all times, it is possible to prevent the liquid from being depleted. Therefore, it is possible to prevent the reservoir unit 111 from being heated due to the influence of heat from the evaporator 103, and to avoid the performance degradation and the worst case operation stop due to the reservoir unit 111 being heated. it can.

また、第2の実施の形態に係るループ型ヒートパイプによれば、リザーバ部111内に配置した吸水性部材122がウィック119とは別体に形成されているので、特に曲がり部に蒸発器103を設置する場合の設計の自由度を増すことができる。つまり、曲がり部に蒸発器103を設置する場合、リザーバ部111の形状が複雑になりがちであるが、その場合でも、設計の自由度を確保しながら、リザーバ部111が加熱されることによる性能低下や最悪の場合の動作停止を未然に回避する効果を奏することができる。   Further, according to the loop heat pipe according to the second embodiment, the water absorbing member 122 disposed in the reservoir unit 111 is formed separately from the wick 119, and thus the evaporator 103 is particularly formed in the bent portion. The degree of freedom of design when installing the can be increased. That is, when the evaporator 103 is installed at the bent portion, the shape of the reservoir portion 111 tends to be complicated, but even in that case, the performance by heating the reservoir portion 111 while ensuring the degree of freedom of design. The effect of avoiding the lowering or the operation stop in the worst case can be obtained.

本発明の第1の実施の形態に係るループ型ヒートパイプの要部概略構成を示す断面図である。It is sectional drawing which shows the principal part schematic structure of the loop type heat pipe which concerns on the 1st Embodiment of this invention. 本発明の第2の実施の形態に係るループ型ヒートパイプの要部概略構成を示す断面図である。It is sectional drawing which shows the principal part schematic structure of the loop type heat pipe which concerns on the 2nd Embodiment of this invention. ループ型ヒートパイプの全体構成を示す図である。It is a figure which shows the whole structure of a loop type heat pipe. 蒸発器が垂直に設置されている場合の従来の問題点の説明に用いる要部断面図である。It is principal part sectional drawing used for description of the conventional problem in case an evaporator is installed vertically. 蒸発器が曲がり部に設置されている場合の従来の問題点の説明に用いる要部断面図である。It is principal part sectional drawing used for description of the conventional problem in case an evaporator is installed in the bending part.

符号の説明Explanation of symbols

101…ループ型ヒートパイプ
103…蒸発器
105…蒸気管
107…凝縮器
107A…管路
107B…フィン
109…液戻り管
111…リザーバ部
111a…内壁面
113…バイオネット管
115…Oリング
117,121…グルーブ管
119…ウィック
120,122…吸水性部材
123…蒸気流路
125…液貯留室
DESCRIPTION OF SYMBOLS 101 ... Loop type heat pipe 103 ... Evaporator 105 ... Steam pipe 107 ... Condenser 107A ... Pipe line 107B ... Fin 109 ... Liquid return pipe 111 ... Reservoir part 111a ... Inner wall surface 113 ... Bionet pipe 115 ... O-ring 117, 121 ... Groove tube 119 ... Wick 120, 122 ... Water absorbing member 123 ... Steam flow path 125 ... Liquid storage chamber

Claims (3)

作動液を蒸発させて気化する際の潜熱を利用して冷却する蒸発器と、
前記蒸発器で気化された気体を放熱して液化する凝縮器と、
前記蒸発器と前記凝縮器を接続し、前記蒸発器で気化された気体を前記凝縮器まで送る蒸気管と、
前記凝縮器と前記蒸発器を接続し、前記凝縮器で液化された作動液を前記蒸発器まで送る液戻り管と、
前記蒸発器の端部に設けられ、前記凝縮器で液化されて前記液戻り管を経て前記蒸発器に供給される作動液を前記蒸発器の手前で保留するリザーバ部
とを備えるループ型ヒートパイプにおいて、
前記蒸発器は、一端側を開口し且つ他端側を前記蒸気管に連通して閉塞するグルーブ管と、前記グルーブ管の内部に挿入されたウィックと、前記ウィックの内部及び前記リザーバ部に作動液を供給するバイオネット管とを備え、
前記リザーバ部の内壁面の少なくとも一部には、作動液を吸水する吸水性部材が配置されていることを特徴とするループ型ヒートパイプ。
An evaporator that cools using the latent heat generated when the hydraulic fluid is evaporated and vaporized;
A condenser that radiates and liquefies the gas vaporized in the evaporator;
A steam pipe connecting the evaporator and the condenser, and sending the gas vaporized in the evaporator to the condenser;
A liquid return pipe that connects the condenser and the evaporator, and sends the working liquid liquefied by the condenser to the evaporator;
A loop heat pipe provided at an end of the evaporator, and a reservoir section that holds the working liquid liquefied by the condenser and supplied to the evaporator through the liquid return pipe before the evaporator In
The evaporator operates in a groove tube that opens at one end side and closes the other end side in communication with the steam tube, a wick inserted into the groove tube, the inside of the wick, and the reservoir unit. A bayonet tube for supplying liquid,
A loop type heat pipe, wherein a water absorbing member that absorbs hydraulic fluid is disposed on at least a part of an inner wall surface of the reservoir portion.
前記ウィックの一部が前記リザーバ部内に延長されて前記吸水性部材として利用されていることを特徴とする請求項1に記載のループ型ヒートパイプ。   The loop heat pipe according to claim 1, wherein a part of the wick is extended into the reservoir portion and used as the water absorbing member. 前記吸水性部材は、前記ウィックとは別体の部材として設けられていることを特徴とする請求項1に記載のループ型ヒートパイプ。   The loop-type heat pipe according to claim 1, wherein the water absorbing member is provided as a separate member from the wick.
JP2007053060A 2007-03-02 2007-03-02 Loop-type heat pipe Pending JP2008215702A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011085372A (en) * 2009-10-19 2011-04-28 Fujitsu Ltd Loop-type heat pipe and electronic apparatus equipped with the same
JP2011094822A (en) * 2009-10-27 2011-05-12 Fujitsu Ltd Loop-type heat pipe and electronic device including the same
JP2014052109A (en) * 2012-09-06 2014-03-20 Hosei Nagano Heat exchanger and electronic equipment
CN105352349A (en) * 2015-11-27 2016-02-24 华中科技大学 Secondary core evaporator and application thereof
JP2017503330A (en) * 2014-01-15 2017-01-26 コルネリア ナイドル−シュティプラー Passive temperature control of rechargeable batteries

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS535454A (en) * 1976-07-05 1978-01-19 Toshiba Corp Heat pipe
JPH10246583A (en) * 1997-03-07 1998-09-14 Mitsubishi Electric Corp Evaporator and loop type heat pipe employing it
JP2006308163A (en) * 2005-04-27 2006-11-09 Fujikura Ltd Cooling device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS535454A (en) * 1976-07-05 1978-01-19 Toshiba Corp Heat pipe
JPH10246583A (en) * 1997-03-07 1998-09-14 Mitsubishi Electric Corp Evaporator and loop type heat pipe employing it
JP2006308163A (en) * 2005-04-27 2006-11-09 Fujikura Ltd Cooling device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011085372A (en) * 2009-10-19 2011-04-28 Fujitsu Ltd Loop-type heat pipe and electronic apparatus equipped with the same
JP2011094822A (en) * 2009-10-27 2011-05-12 Fujitsu Ltd Loop-type heat pipe and electronic device including the same
JP2014052109A (en) * 2012-09-06 2014-03-20 Hosei Nagano Heat exchanger and electronic equipment
JP2017503330A (en) * 2014-01-15 2017-01-26 コルネリア ナイドル−シュティプラー Passive temperature control of rechargeable batteries
CN105352349A (en) * 2015-11-27 2016-02-24 华中科技大学 Secondary core evaporator and application thereof

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