JP2003314936A - Cooling device - Google Patents
Cooling deviceInfo
- Publication number
- JP2003314936A JP2003314936A JP2002115863A JP2002115863A JP2003314936A JP 2003314936 A JP2003314936 A JP 2003314936A JP 2002115863 A JP2002115863 A JP 2002115863A JP 2002115863 A JP2002115863 A JP 2002115863A JP 2003314936 A JP2003314936 A JP 2003314936A
- Authority
- JP
- Japan
- Prior art keywords
- heat
- temperature
- heating element
- heat storage
- medium
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ディスクトップ型
パソコン等に代表されるＣＰＵ等の発熱体を備えた電子
機器において、特にＣＰＵ等の発熱体における局所的温
度上昇を抑制するための冷却装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic device including a heating element such as a CPU represented by a desktop type personal computer and the like, and particularly to a cooling device for suppressing a local temperature rise in the heating element such as the CPU. It is about.
【０００２】[0002]
【従来の技術】コンピュータを代表とする電子機器の冷
却装置については、近年、さまざまな取組みがなされて
おり、例えば、登実３０６３８３６号公報に示されてい
るような冷却装置の基本的な技術について以下に述べ
る。2. Description of the Related Art In recent years, various efforts have been made for cooling devices for electronic equipment represented by computers. For example, regarding the basic technology of cooling devices as disclosed in Noboru 3063836. It will be described below.
【０００３】上記従来の冷却装置は図５に示すように、
冷却管路１１、ポンプ１２、放熱片１３、及び放熱板１
４で構成され、冷却管路１１内部を冷却液が流動可能と
され、ポンプ１２が冷却管路１１間に連接されて冷却管
路１１内の冷却液を流動させて冷却液循環回路が形成さ
れている。As shown in FIG. 5, the conventional cooling device described above is
Cooling line 11, pump 12, heat dissipation piece 13, and heat dissipation plate 1
4, the cooling liquid is allowed to flow inside the cooling pipe 11, and the pump 12 is connected between the cooling pipes 11 to flow the cooling liquid in the cooling pipe 11 to form a cooling liquid circulation circuit. ing.
【０００４】そして、放熱片１３が放熱したい発熱体Ｃ
ＰＵ上に設置され、放熱片１３内部に管路が設けられて
冷却管路１１と連接し、放熱板１４がケース３０上、或
いはケース３０外に設置され、放熱板１４内部に管路が
設けられて冷却管路と連接されている。Then, the heat generating element C which the heat dissipating piece 13 wants to dissipate heat.
It is installed on PU, the pipe is provided inside the heat dissipation piece 13 and is connected to the cooling pipe 11, the heat dissipation plate 14 is installed on the case 30 or outside the case 30, and the pipe is provided inside the heat dissipation plate 14. And is connected to the cooling pipe.
【０００５】以上のように構成された冷却装置では、冷
却液の循環により熱がケース３０或いはケース３０外に
送られ、発熱体ＣＰＵの温度を下げられるという効果を
有している。The cooling device configured as described above has an effect that heat is sent to the case 30 or the outside of the case 30 by the circulation of the cooling liquid to lower the temperature of the heating element CPU.
【０００６】[0006]
【発明が解決しようとする課題】しかしながら上記従来
の冷却装置では、放熱用に使用している放熱板では自然
対流による放熱であるために放熱量に限界があること、
更に熱媒体の熱輸送に際して顕熱のみによるものである
ことより、近年の演算処理の高性能化等に伴う発熱体か
らの発熱量増大に対して、十分に発熱量を処理できず、
発熱体の温度上昇を抑制できないという問題があった。However, in the above-mentioned conventional cooling device, the heat dissipation plate used for heat dissipation has a limit in the amount of heat dissipation due to natural convection.
Furthermore, since the heat transfer of the heat medium is due only to sensible heat, it is not possible to sufficiently process the heat generation amount against the increase in heat generation amount from the heating element due to the high performance of the arithmetic processing in recent years.
There is a problem that the temperature rise of the heating element cannot be suppressed.
【０００７】そこで、本発明は従来の課題を解決するも
ので、熱媒体として潜熱蓄熱媒体を使用し、発熱体が所
定温度未満では潜熱蓄熱媒体に（顕熱量＋潜熱量）とし
て蓄熱し、発熱体が所定温度以上の場合に熱媒体搬送手
段、及び放熱用熱交換手段を随時、運転開始することに
より、発熱体の発熱処理を最小電力で対応し得る冷却装
置を提供することを目的とする。Therefore, the present invention solves the conventional problems by using a latent heat storage medium as a heat medium, and when the heating element is below a predetermined temperature, the latent heat storage medium stores heat as (sensible heat amount + latent heat amount) to generate heat. An object of the present invention is to provide a cooling device capable of coping with heat generation processing of a heat generating element with minimum power by starting operation of a heat medium conveying means and a heat radiating heat exchanging means at any time when a body is at a predetermined temperature or higher. .
【０００８】[0008]
【課題を解決するための手段】この目的を達成するた
め、請求項１に記載の発明は、潜熱蓄熱媒体を循環させ
る熱媒体循環手段と、集積回路部品からなる発熱体に対
して熱的に接触して、発熱体における発生熱を内部に存
在する潜熱蓄熱媒体へ熱移動させる吸熱用熱交換手段
と、吸熱用熱交換手段を介して発熱体より吸熱した潜熱
蓄熱媒体の熱を空気中へ熱移動させる放熱用熱交換手段
と、放熱用熱交換手段の近傍に設置した送風手段とが設
置され、熱媒体循環手段、吸熱用熱交換手段、及び放熱
用熱交換手段は順次連通されて閉回路を形成して内部を
潜熱蓄熱媒体が循環し、また、発熱体に対して熱的に接
触して発熱体の温度を検出する第１温度検出手段と、検
出した温度信号を処理する温度信号処理手段と、送風手
段の運転／停止を行う送風手段制御装置と、熱媒体搬送
手段の運転／停止を行う熱媒体搬送手段制御装置とから
なり、第１温度検出手段により検出した温度が第１所定
温度以上に達した時点で熱媒体循環手段、及び送風手段
の運転を開始する第１制御装置を備えたことを特徴とす
るものである。In order to achieve this object, the invention as set forth in claim 1 provides a heat medium circulating means for circulating a latent heat storage medium, and a heat generating element composed of integrated circuit parts thermally. The heat of the endothermic heat storage medium, which comes into contact with the heat generating element to transfer the heat generated in the heat generating element to the latent heat storage medium existing inside, and the heat of the latent heat storage medium absorbed by the heat generating element via the heat absorbing heat exchange means to the air. A heat radiating heat exchanging means for transferring heat and a blowing means installed near the heat radiating heat exchanging means are installed, and the heat medium circulating means, the heat absorbing heat exchanging means, and the heat radiating heat exchanging means are sequentially connected and closed. First temperature detecting means for forming a circuit, in which the latent heat storage medium circulates, and in thermal contact with the heating element to detect the temperature of the heating element; and temperature signal for processing the detected temperature signal. Operates / stops processing means and blower means The air medium control device and the heat medium transportation device control device that operates / stops the heat medium transportation device. When the temperature detected by the first temperature detection device reaches or exceeds the first predetermined temperature, the heat medium circulation device. , And a first control device for starting the operation of the blower means.
【０００９】これにより、発熱体の発熱は吸熱用熱交換
手段により潜熱蓄熱媒体へ吸熱され、冷却装置の内部全
体に充填されている潜熱蓄熱媒体温度がその融点以下の
場合、潜熱蓄熱媒体は固相の状態で温度上昇していき、
潜熱蓄熱媒体の融点に達すると、温度一定のまま固相か
ら液相へと相変化が生じて潜熱蓄熱媒体の保有量に応じ
た潜熱量が潜熱蓄熱媒体に蓄熱される。As a result, the heat of the heating element is absorbed by the latent heat storage medium by the heat exchange means for heat absorption, and when the temperature of the latent heat storage medium filled in the entire cooling device is below its melting point, the latent heat storage medium is solid. The temperature rises in the phase state,
When the melting point of the latent heat storage medium is reached, a phase change occurs from the solid phase to the liquid phase while the temperature is constant, and the latent heat amount corresponding to the amount of the latent heat storage medium is stored in the latent heat storage medium.
【００１０】即ち、発熱体の発熱量が潜熱蓄熱媒体の有
する最大蓄熱量以下の場合は、熱媒体循環手段、及び送
風手段を運転することなく、発熱体の発熱処理を行うこ
とができ、省エネルギー化に寄与できる。That is, when the calorific value of the heating element is equal to or less than the maximum heat storage amount of the latent heat storage medium, the heat generating process of the heating element can be performed without operating the heat medium circulating means and the blowing means, thus saving energy. Can contribute to
【００１１】そして、発熱体の発熱量が増加して潜熱蓄
熱媒体が完全に液相へと変化し、その後、液相の状態で
第１所定温度以上に達した時点で熱媒体循環手段、及び
送風手段の運転を開始することにより、潜熱蓄熱媒体が
放熱用熱交換手段へ搬送され、そこで放熱用熱交換手段
を介して強制対流熱伝達により潜熱蓄熱媒体から空気中
へ放熱される。その結果、発熱体からの発熱量増大に対
して、発熱体の温度上昇を抑制することができる。Then, the amount of heat generated by the heating element increases and the latent heat storage medium completely changes to the liquid phase. After that, when the temperature reaches the first predetermined temperature or higher in the state of the liquid phase, the heat medium circulating means, and By starting the operation of the air blowing means, the latent heat storage medium is conveyed to the heat radiating heat exchange means, where it is radiated into the air by forced convection heat transfer via the heat radiating heat exchange means. As a result, it is possible to suppress an increase in the temperature of the heating element with respect to an increase in the amount of heat generated by the heating element.
【００１２】また、請求項２に記載の発明は、請求項１
記載の発明に加えて、吸熱用熱交換手段の出口配管付近
に対して熱的に接触して吸熱用熱交換手段の温度を検出
する第２温度検出手段を設置し、第１制御装置に替わっ
て、第１温度検出手段による検出温度が第１所定温度以
上に達した時点で熱媒体搬送手段の運転を開始し、さら
に第２温度検出手段による検出温度が第２所定温度以上
に達した時点で送風手段の運転を開始する第２制御装置
を備えたことを特徴とするものである。The invention described in claim 2 is the same as claim 1.
In addition to the invention described above, a second temperature detecting means for detecting the temperature of the heat absorbing heat exchanging means by thermally contacting with the vicinity of the outlet pipe of the heat absorbing heat exchanging means is installed, and the second controller is replaced with the first controller. Then, when the temperature detected by the first temperature detecting means reaches the first predetermined temperature or higher, the operation of the heat medium carrying means is started, and when the temperature detected by the second temperature detecting means reaches the second predetermined temperature or higher. It is characterized by comprising a second control device for starting the operation of the blowing means.
【００１３】これにより、発熱体の発熱は吸熱用熱交換
手段により潜熱蓄熱媒体へ吸熱され、冷却装置の内部全
体に充填されている潜熱蓄熱媒体温度がその融点以下の
場合、潜熱蓄熱媒体は固相の状態で温度上昇していき、
やがて潜熱蓄熱媒体の融点に達すると、温度一定のまま
固相から液相へと相変化が生じて潜熱蓄熱媒体の保有量
に応じた潜熱量が潜熱蓄熱媒体に蓄熱される。As a result, the heat generated by the heating element is absorbed by the latent heat storage medium by the heat absorbing heat exchange means, and when the temperature of the latent heat storage medium filled in the entire cooling device is below its melting point, the latent heat storage medium is solid. The temperature rises in the phase state,
When the melting point of the latent heat storage medium is reached, a phase change occurs from the solid phase to the liquid phase with the temperature kept constant, and the latent heat storage medium stores a latent heat amount corresponding to the amount of the latent heat storage medium.
【００１４】即ち、発熱体の発熱量が潜熱蓄熱媒体の有
する最大蓄熱量以下の場合は、熱媒体循環手段、及び送
風手段を運転することなく、発熱体の発熱処理を行うこ
とができ、省エネルギー化に寄与できる。That is, when the calorific value of the heating element is equal to or less than the maximum heat storage amount of the latent heat storage medium, the heating process of the heating element can be performed without operating the heat medium circulating means and the blowing means, thus saving energy. Can contribute to
【００１５】そして、発熱体の発熱量が増加して潜熱蓄
熱媒体が完全に液相へと変化し、その後、液相の状態で
第１所定温度以上に達した時点で熱媒体循環手段の運転
を開始することにより、送風手段を運転することなく、
熱媒体循環手段のみにより冷却装置内部の全ての潜熱蓄
熱媒体がほぼ均一な温度分布となり、最小電力にて潜熱
蓄熱媒体の保有し得る熱容量を有効に利用することがで
きる。Then, the amount of heat generated by the heating element is increased, the latent heat storage medium is completely changed to the liquid phase, and thereafter, when the temperature reaches the first predetermined temperature or higher in the state of the liquid phase, the operation of the heat medium circulation means is started. By operating the air blower,
All the latent heat storage medium inside the cooling device has a substantially uniform temperature distribution only by the heat medium circulation means, and the heat capacity that the latent heat storage medium can hold can be effectively utilized with the minimum power.
【００１６】更に、発熱体の発熱量が増加して潜熱蓄熱
媒体の温度が第２所定温度以上に達した時点で送風手段
の運転を開始することにより、潜熱蓄熱媒体が放熱用熱
交換手段へ強制的に搬送され、そこで放熱用熱交換手段
を介して強制対流熱伝達により潜熱蓄熱媒体から空気中
へ放熱される。その結果、発熱体からの発熱量増大に対
して放熱量を増大させることにより、発熱体の温度上昇
を抑制することができる。Further, the operation of the blower means is started when the amount of heat generated by the heating element increases and the temperature of the latent heat storage medium reaches or exceeds the second predetermined temperature, whereby the latent heat storage medium is transferred to the heat radiating heat exchange means. It is forcibly conveyed and is radiated from the latent heat storage medium into the air by forced convection heat transfer through the heat radiating heat exchange means. As a result, it is possible to suppress the temperature rise of the heat generating element by increasing the heat radiation amount with respect to the heat generation amount of the heat generating element.
【００１７】以上より、発熱体からの発熱量増大に対し
て、発熱体の温度が比較的低い場合はできるだけ省電力
にて発熱処理を行い、発熱体の温度が比較的高い場合の
み、熱媒体循環手段、及び送風手段を運転することによ
り、発熱体の温度レベルに応じた省エネルギー運転、か
つ熱媒体循環手段、及び送風手段の長寿命化を実現でき
る。As described above, when the temperature of the heating element is relatively low against the increase in the amount of heat generated by the heating element, heat generation processing is performed with the least possible power consumption, and only when the temperature of the heating element is relatively high, the heating medium is heated. By operating the circulation means and the air blowing means, it is possible to realize energy-saving operation according to the temperature level of the heating element and to extend the life of the heat medium circulation means and the air blowing means.
【００１８】また、請求項３に記載の発明は、請求項１
または請求項２のいずれか一項に記載の発明における潜
熱蓄熱媒体として、水の中に、蓄熱材料であるアルカン
類材料を滴状に微細化して分散したマイクロエマルジョ
ン、または水と、蓄熱材料であるアルカン類材料をメラ
ミン樹脂等の非水溶性の高分子膜でカプセル化したマイ
クロカプセルとの混合溶液を用いることを特徴とするも
のである。The invention described in claim 3 is the same as claim 1.
Alternatively, as the latent heat storage medium in the invention according to any one of claims 2 to 3, a microemulsion in which an alkane material that is a heat storage material is atomized and dispersed in water, or water and a heat storage material are used. It is characterized by using a mixed solution of microcapsules obtained by encapsulating a certain alkane material with a water-insoluble polymer film such as melamine resin.
【００１９】これにより、潜熱蓄熱媒体として安定な特
性を有し、熱容量が増加するという利点を確保しなが
ら、かつ水成分も有していることより熱輸送性も確保で
き、その結果、熱媒体循環手段による搬送が可能とな
る。As a result, the latent heat storage medium has stable characteristics and the advantage that the heat capacity is increased, and at the same time, the heat transportability can be secured because it also has the water component. As a result, the heat medium is obtained. It becomes possible to carry by the circulation means.
【００２０】また、水成分を連続相とし、潜熱蓄熱材料
を分散相とすることにより、発熱体の温度が低く、潜熱
蓄熱媒体の温度が潜熱蓄熱材料の融点よりも低い場合に
おいても、潜熱蓄熱材料のみが固相となり、０℃以上で
ある限り、水成分が固相となることがない。By using the water component as the continuous phase and the latent heat storage material as the dispersed phase, even when the temperature of the heating element is low and the temperature of the latent heat storage medium is lower than the melting point of the latent heat storage material, the latent heat storage material is stored. Only the material becomes a solid phase, and as long as it is 0 ° C. or higher, the water component does not become a solid phase.
【００２１】従って、潜熱蓄熱媒体の温度が潜熱蓄熱材
料の融点よりも低い場合においても、潜熱蓄熱媒体とし
ての流動性は確保できるために、吸熱用熱交換手段、放
熱用熱交換手段、熱媒体搬送手段、及びそれぞれを連通
する配管内部において自然対流による熱移動が可能とな
る。Therefore, even when the temperature of the latent heat storage medium is lower than the melting point of the latent heat storage material, since the fluidity as the latent heat storage medium can be secured, the heat absorption heat exchange means, the heat radiation heat exchange means, and the heat medium. Heat can be transferred by natural convection inside the transfer means and inside the pipes that communicate with each other.
【００２２】また、請求項４に記載の発明は、請求項３
に記載の発明に加えて、上部に入口配管を設置し、底部
から内側上部へ所定長さの出口配管を突出させた、潜熱
蓄熱媒体を貯留する熱媒体貯留手段を、放熱用熱交換手
段と吸熱用熱交換手段とを連通する配管中に設置したこ
とを特徴とするものである。The invention according to claim 4 is the same as claim 3
In addition to the invention described in, the inlet pipe is installed in the upper part, the outlet pipe of a predetermined length is projected from the bottom to the upper inside, the heat medium storage means for storing the latent heat storage medium, and the heat exchange means for heat dissipation. It is characterized in that it is installed in a pipe communicating with the heat exchange means for heat absorption.
【００２３】これにより、潜熱蓄熱媒体の温度変化によ
る体積変化が生じた場合においても、熱媒体貯留手段の
保有する内容積により、潜熱蓄熱媒体の体積変化を吸収
することができる。As a result, even if the volume change of the latent heat storage medium due to the temperature change occurs, the volume change of the latent heat storage medium can be absorbed by the internal volume held by the heat medium storage means.
【００２４】また、潜熱蓄熱材料であるアルカン類材料
の密度は一般に水より小さいため、熱媒体貯留手段内部
において、アルカン類材料と水成分が分離した場合、熱
媒体貯留手段内の上部側に分布しやすくなるが、熱媒体
貯留手段の底部から内側上部へ所定長さの配管を突出さ
せることにより、水成分のみが流出することなく、潜熱
蓄熱材料であるアルカン類材料を含んだ潜熱蓄熱媒体と
して熱媒体循環手段へ流出させることが可能になる。Further, since the density of the alkane material which is the latent heat storage material is generally smaller than that of water, when the alkane material and the water component are separated inside the heat medium storage means, they are distributed on the upper side in the heat medium storage means. Although it is easier to do, by projecting a pipe of a predetermined length from the bottom of the heat medium storage means to the upper inside, as a latent heat storage medium containing an alkane material that is a latent heat storage material, only the water component does not flow out. It becomes possible to flow out to the heat medium circulation means.
【００２５】また、請求項５に記載の発明は、請求項４
記載の発明に加えて、潜熱蓄熱媒体を構成する潜熱蓄熱
材料の融点は第１所定温度より低く、かつ潜熱蓄熱材料
の融点と第１所定温度との差を略２０Ｋ以内としたこと
を特徴とするものである。The invention described in claim 5 is the same as claim 4
In addition to the invention described above, the melting point of the latent heat storage material that constitutes the latent heat storage medium is lower than the first predetermined temperature, and the difference between the melting point of the latent heat storage material and the first predetermined temperature is within about 20K. To do.
【００２６】これにより、発熱体の発熱量が増加した場
合において、潜熱蓄熱媒体の温度が潜熱蓄熱材料の融点
より低い時点で熱媒体循環手段を運転させることによ
り、潜熱蓄熱媒体の温度分布を均一にしておくことがで
きる。Thus, when the amount of heat generated by the heating element is increased, the heat medium circulating means is operated at a time when the temperature of the latent heat storage medium is lower than the melting point of the latent heat storage material, so that the temperature distribution of the latent heat storage medium is made uniform. You can keep it.
【００２７】一方、潜熱蓄熱媒体の温度が潜熱蓄熱材料
の融点より大幅に低い時点、例えば融点より略２０Ｋを
越える低い温度レベルでは発熱体にとって支障のない程
度であり、このような僅かな温度上昇においては発熱体
を冷却する必要はない。On the other hand, at the time when the temperature of the latent heat storage medium is significantly lower than the melting point of the latent heat storage material, for example, at a low temperature level of about 20 K or less than the melting point, there is no problem for the heating element and such a slight temperature rise. In, it is not necessary to cool the heating element.
【００２８】従って、潜熱蓄熱材料の融点が、熱媒体循
環手段を運転開始させる第１所定温度より低く、かつ第
１所定温度との差を略２０Ｋ以内とすることにより、発
熱体の発熱量が増加して冷却の必要性が発生した場合の
みにおいて、熱媒体循環手段を運転させることにより、
省エネルギー化、及び熱媒体循環手段の長寿命化を図り
ながら発熱体の冷却を行うことができる。Therefore, when the melting point of the latent heat storage material is lower than the first predetermined temperature at which the heat medium circulating means is started and the difference from the first predetermined temperature is within approximately 20K, the heat generation amount of the heating element is increased. Only by increasing the need for cooling, by operating the heat medium circulating means,
It is possible to cool the heating element while saving energy and prolonging the life of the heat medium circulating means.
【００２９】[0029]
【発明の実施の形態】以下、本発明による冷却装置の実
施の形態について図面を参照しながら説明する。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a cooling device according to the present invention will be described below with reference to the drawings.
【００３０】（実施の形態１）図１に本発明の実施の形
態１による冷却装置の要部概略図を示すが、従来例と同
一構成部分については同一符号を付して詳細な説明を省
略する。尚、図１中の黒矢印は潜熱蓄熱媒体流動方向を
示し、白抜き矢印は空気の流動方向を示す。(Embodiment 1) FIG. 1 shows a schematic view of a main part of a cooling device according to Embodiment 1 of the present invention. The same components as those of the conventional example are designated by the same reference numerals and detailed description thereof will be omitted. To do. The black arrow in FIG. 1 indicates the flow direction of the latent heat storage medium, and the white arrow indicates the flow direction of air.
【００３１】本実施の形態の冷却装置は図１に示すよう
に、熱媒体ポンプＰＭ、吸熱用熱交換器ＨＥＸ１、放熱
用熱交換器ＨＥＸ２、及び貯留容器ＴＫで構成され、順
次、接続配管ＴＢにより連通されて閉回路を形成し、接
続配管ＴＢ内部では潜熱蓄熱媒体としてマイクロエマル
ジョンＭＥを流動させて循環回路が形成されている。As shown in FIG. 1, the cooling device of the present embodiment comprises a heat medium pump PM, a heat absorbing heat exchanger HEX1, a heat radiating heat exchanger HEX2, and a storage container TK, which are sequentially connected to a connecting pipe TB. To form a closed circuit, and a microemulsion ME as a latent heat storage medium is caused to flow inside the connection pipe TB to form a circulation circuit.
【００３２】そして、吸熱用熱交換器ＨＥＸ１は、演算
処理素子等の発熱体ＣＰＵの上面に対して熱的に接触し
ており、発熱体ＣＰＵからの発生熱を潜熱蓄熱媒体であ
るマイクロエマルジョンＭＥへ熱移動させ、放熱用熱交
換器ＨＥＸ２は発熱体ＣＰＵより吸熱して循環するマイ
クロエマルジョンＭＥの保有熱を空気中へ熱移動させる
もので、放熱用熱交換器ＨＥＸ２近傍には空気Ａｉｒへ
の放熱を促進するための送風ファンＦＮが設置されてい
る。The heat absorbing heat exchanger HEX1 is in thermal contact with the upper surface of the heating element CPU such as an arithmetic processing element, and the heat generated from the heating element CPU is a microemulsion ME which is a latent heat storage medium. The heat radiating heat exchanger HEX2 absorbs heat from the heating element CPU and circulates the heat of the circulating microemulsion ME into the air. The heat radiating heat exchanger HEX2 transfers heat to the air near the heat radiating heat exchanger HEX2. A blower fan FN is installed to promote heat dissipation.
【００３３】また、貯留容器ＴＫは、放熱用熱交換器Ｈ
ＥＸ１と吸熱用熱交換器ＨＥＸ２とを連通する配管中に
設置され、貯留容器ＴＫの上部に放熱用熱交換器ＨＥＸ
１からの入口配管ＴＢ１を設置し、底部において内側上
部へ所定長さＬだけ出口配管ＴＢ２を突出させている。Further, the storage container TK is provided with a heat radiating heat exchanger H.
The heat exchanger HEX for heat radiation is installed in a pipe that communicates the EX1 and the heat exchanger HEX2 for heat absorption, and is installed in the upper part of the storage container TK.
The inlet pipe TB1 from No. 1 is installed, and the outlet pipe TB2 is protruded by a predetermined length L toward the inner upper part at the bottom.
【００３４】また、潜熱蓄熱媒体であるマイクロエマル
ジョンＭＥとしては、水の中に、蓄熱材料としてアルカ
ン類材料、例えばオクタコサン（Ｃ↓２↓８Ｈ↓５↓
８，融点；６１．５℃）を滴状に微細化して分散して作
成したものが使用可能である。As the microemulsion ME which is a latent heat storage medium, an alkane material such as octacosan (C ↓ 2 ↓ 8H ↓ 5 ↓) is used as a heat storage material in water.
(8, melting point; 61.5 ° C.) can be used by making it into fine droplets and dispersing.
【００３５】更に、発熱体ＣＰＵの温度を検出する第１
温度検出手段Ｔｈ１を発熱体ＣＰＵ側面に熱的に接触さ
せて設置され、第１温度検出手段Ｔｈ１より得られる温
度信号を処理する温度信号処理手段Ｔｈｃａｌと、送風
ファンＦＮの運転／停止を行う送風ファン制御装置ＦＮ
ｃｎｔと、熱媒体ポンプＰＭの運転／停止を行う熱媒体
ポンプ制御装置ＰＭｃｎｔとからなり、第１温度検出手
段Ｔｈ１による検出温度Ｔｃの大小に応じて送風ファン
ＦＮ、及び熱媒体ポンプＰＭ、各々の運転／停止を制御
する第１制御装置Ｃｎｔ１を備えている。Further, the first for detecting the temperature of the heating element CPU
The temperature detection means Th1 is installed so as to be in thermal contact with the side surface of the heating element CPU, and the temperature signal processing means Thcal for processing the temperature signal obtained from the first temperature detection means Th1 and the blower fan for operating / stopping the blower fan FN. Fan controller FN
cnt and a heat medium pump control device PMcnt for operating / stopping the heat medium pump PM. The blower fan FN and the heat medium pump PM are respectively arranged according to the detected temperature Tc by the first temperature detecting means Th1. A first control device Cnt1 for controlling start / stop is provided.
【００３６】そして、第１温度検出手段Ｔｈ１より発熱
体ＣＰＵの表面温度Ｔｃを検出し、潜熱蓄熱媒体マイク
ロエマルジョンＭＥの潜熱蓄熱材料であるオクタコサン
の融点Ｔｍが６１．５℃であることより、第１設定温度
Ｔｓ１＝８０℃とし、即ち潜熱蓄熱材料の融点Ｔｍは第
１設定温度Ｔｓ１より低く、かつ潜熱蓄熱材料の融点Ｔ
ｍと第１設定温度Ｔｓ１との差は２０Ｋ以内としてい
る。The surface temperature Tc of the heating element CPU is detected by the first temperature detecting means Th1, and the melting point Tm of octacosan, which is the latent heat storage material of the latent heat storage medium microemulsion ME, is 61.5 ° C. 1 set temperature Ts1 = 80 ° C., that is, the melting point Tm of the latent heat storage material is lower than the first set temperature Ts1 and the melting point T of the latent heat storage material
The difference between m and the first set temperature Ts1 is within 20K.
【００３７】以上のように構成された実施の形態１によ
る冷却装置の動作内容について図２に示すフローチャー
トを用いて説明する。The operation contents of the cooling device according to the first embodiment configured as described above will be described with reference to the flowchart shown in FIG.
【００３８】まず、ある電子機器において発熱体ＣＰＵ
の冷却装置が運転開始された後、ｓｔｅｐ１にて温度検
出時間間隔ＩＮＴがΔτ以上となるまで繰り返しにより
待機し、温度検出時間間隔ＩＮＴがΔτ以上になった時
点でｓｔｅｐ２において発熱体ＣＰＵの表面温度Ｔｃを
検出する。First, in a certain electronic device, a heating element CPU
After the cooling device is started up, it waits repeatedly until the temperature detection time interval INT becomes Δτ or more at step 1, and when the temperature detection time interval INT becomes Δτ or more, at step 2, the surface temperature of the heating element CPU Detect Tc.
【００３９】そして、ｓｔｅｐ３において発熱体ＣＰＵ
の表面温度Ｔｃと第１設定温度Ｔｓ１とを比較し、Ｔｃ
＜Ｔｓ１の場合はｓｔｅｐ４に移行して、熱媒体ポンプ
ＰＭ：停止（ＯＦＦ）、送風ファンＦＮ：停止（ＯＦ
Ｆ）としてｓｔｅｐ１へ戻り、逆にＴｃ≧Ｔｓ１の場合
はｓｔｅｐ５に移行する。Then, in step 3, the heating element CPU
Surface temperature Tc of the first and the first set temperature Ts1 are compared, and Tc
<If Ts1, shift to step 4, heat medium pump PM: stop (OFF), blower fan FN: stop (OF
As F), the process returns to step 1, and conversely, if Tc ≧ Ts1, the process proceeds to step 5.
【００４０】ｓｔｅｐ５において、発熱体ＣＰＵの表面
温度Ｔｃと上限温度Ｔｓ０（例えば、Ｔｓ０＝９０℃）
とを比較し、Ｔｃ＜Ｔｓ０の場合はｓｔｅｐ６に移行し
て、熱媒体ポンプＰＭ：運転（ＯＮ）、送風ファンＦ
Ｎ：運転（ＯＮ）としてｓｔｅｐ１へ戻り、逆にＴｃ≧
Ｔｓ０の場合は、運転継続は危険と判断し、ｓｔｅｐ７
に移行して発熱体ＣＰＵを保護するべく電子機器の運転
を停止する。In step 5, the surface temperature Tc of the heating element CPU and the upper limit temperature Ts0 (for example, Ts0 = 90 ° C.)
And when Tc <Ts0, the process proceeds to step 6, and the heat medium pump PM: operation (ON), blower fan F
N: Operation (ON) is returned to step 1, and conversely Tc ≧
In the case of Ts0, it is judged that it is dangerous to continue driving, and step7
Then, the operation of the electronic device is stopped to protect the heating element CPU.
【００４１】以上の制御において、まず、発熱体ＣＰＵ
による発熱の伴う電子機器等の冷却装置運転中におい
て、発熱体ＣＰＵの検出温度Ｔｃが第１設定温度Ｔｓ１
より低い場合は、冷却の必要がないと判断し、送風ファ
ンＦＮ、及び熱媒体ポンプＰＭを動作させない。In the above control, first, the heating element CPU
During the operation of the cooling device such as an electronic device that generates heat due to, the detected temperature Tc of the heating element CPU is the first set temperature Ts1.
If it is lower, it is determined that cooling is not necessary, and the blower fan FN and the heat medium pump PM are not operated.
【００４２】この時、発熱体ＣＰＵの発熱は吸熱用熱交
換器ＨＥＸ１により潜熱蓄熱媒体であるマイクロエマル
ジョンＭＥへ吸熱され、冷却装置の内部全体に充填され
ているマイクロエマルジョンＭＥの温度がその融点Ｔｍ
以下の場合、マイクロエマルジョンＭＥは固相の状態で
温度上昇していき、潜熱蓄熱材料の融点Ｔｍに達する
と、温度一定のまま固相から液相へと相変化が生じて潜
熱蓄熱材料の保有量に応じた潜熱量がマイクロエマルジ
ョンＭＥに蓄熱される。At this time, the heat generated by the heating element CPU is absorbed by the heat-absorbing heat exchanger HEX1 into the microemulsion ME which is a latent heat storage medium, and the temperature of the microemulsion ME filling the entire inside of the cooling device is its melting point Tm.
In the following cases, the temperature of the microemulsion ME rises in the solid phase state, and when the melting point Tm of the latent heat storage material is reached, a phase change occurs from the solid phase to the liquid phase while the temperature is constant, and the latent heat storage material is retained. A latent heat amount according to the amount is stored in the microemulsion ME.
【００４３】即ち、発熱体ＣＰＵの発熱量がマイクロエ
マルジョンＭＥの有する最大蓄熱量以下の場合は、熱媒
体ポンプＰＭ、及び送風ファンＦＮを運転することな
く、発熱体ＣＰＵの発熱処理を行うことができ、省エネ
ルギー化に寄与できる。That is, when the heat generation amount of the heating element CPU is less than the maximum heat storage amount of the microemulsion ME, the heat generation process of the heating element CPU can be performed without operating the heat medium pump PM and the blowing fan FN. It can contribute to energy saving.
【００４４】次に、発熱体ＣＰＵの発熱量が増加してマ
イクロエマルジョンＭＥの潜熱蓄熱材料が完全に液相へ
と変化し、その後、液相の状態で第１設定温度Ｔｓ１以
上に達した時点で熱媒体ポンプＰＭ、及び送風ファンＦ
Ｎの運転を開始する。Next, when the calorific value of the heating element CPU increases and the latent heat storage material of the microemulsion ME completely changes to the liquid phase, and thereafter, when the temperature reaches the first set temperature Ts1 or higher in the liquid phase state. The heat medium pump PM and the blower fan F
Start operation of N.
【００４５】これにより、マイクロエマルジョンＭＥが
吸熱熱交換器ＨＥＸ１と放熱用熱交換器ＨＥＸ２との間
を循環し、吸熱熱交換器ＨＥＸ１で吸熱した熱を放熱用
熱交換器ＨＥＸ２において管内／管外側強制対流熱伝達
によりマイクロエマルジョンＭＥから空気中へ放熱され
る。その結果、発熱体ＣＰＵからの発熱量増大に対し
て、発熱体ＣＰＵの温度上昇を抑制することができる。As a result, the microemulsion ME circulates between the heat-absorption heat exchanger HEX1 and the heat-dissipation heat exchanger HEX2, and the heat absorbed by the heat-absorption heat exchanger HEX1 is taken inside / outside the heat-dissipation heat exchanger HEX2. Heat is dissipated from the microemulsion ME into the air by forced convection heat transfer. As a result, it is possible to suppress an increase in the temperature of the heating element CPU with respect to an increase in the amount of heat generated by the heating element CPU.
【００４６】また、潜熱蓄熱媒体であるマイクロエマル
ジョンＭＥとしては、水の中に、蓄熱材料としてアルカ
ン類材料であるオクタコサンを滴状に微細化して分散し
て作成したものを使用することにより、熱媒体として安
定な特性を有し、熱容量が増加するという利点を確保し
ながら、かつ水成分も有していることより熱輸送性も確
保でき、その結果、熱媒体ポンプＰＭによる潜熱搬送が
可能となる。Further, as the microemulsion ME which is a latent heat storage medium, a microemulsion ME which is prepared by finely dispersing and dispersing octacosane which is an alkane-type material as a heat storage material in water is used. It has stable characteristics as a medium and secures the advantage that the heat capacity increases, and at the same time, it can secure heat transportability because it also has a water component. As a result, latent heat transfer by the heat medium pump PM is possible. Become.
【００４７】そして、水成分を連続相とし、潜熱蓄熱材
料を分散相とすることにより、発熱体ＣＰＵの温度が低
く、マイクロエマルジョンＭＥの温度が潜熱蓄熱材料の
融点Ｔｍよりも低い場合においても、潜熱蓄熱材料オク
タコサンのみが固相となり、０℃以上である限り、水成
分が固相となることがない。By using the water component as the continuous phase and the latent heat storage material as the dispersed phase, even when the temperature of the heating element CPU is low and the temperature of the microemulsion ME is lower than the melting point Tm of the latent heat storage material, Only the latent heat storage material octacosan becomes a solid phase, and the water component does not become a solid phase as long as it is 0 ° C. or higher.
【００４８】従って、潜熱蓄熱媒体マイクロエマルジョ
ンＭＥの温度が潜熱蓄熱材料の融点Ｔｍよりも低い場合
においても、マイクロエマルジョンＭＥとしての流動性
は確保できるために、吸熱用熱交換器ＨＥＸ１、放熱用
熱交換器ＨＥＸ２、熱媒体ポンプＰＭ、及びそれぞれを
連通する配管内部ＴＢにおいて自然対流による熱移動が
可能となる。Therefore, even when the temperature of the latent heat storage medium microemulsion ME is lower than the melting point Tm of the latent heat storage material, since the fluidity of the microemulsion ME can be secured, the heat exchanger for heat absorption HEX1 and the heat for heat radiation Heat transfer by natural convection becomes possible in the exchanger HEX2, the heat medium pump PM, and the pipe inside TB communicating with each other.
【００４９】更に、貯留容器ＴＫを設置することによ
り、潜熱蓄熱媒体マイクロエマルジョンＭＥの温度変化
による体積変化が生じた場合においても、貯留容器ＴＫ
の内容積により、潜熱蓄熱媒体マイクロエマルジョンＭ
Ｅの体積変化を吸収することができる。Furthermore, by installing the storage container TK, even when the volume of the latent heat storage medium microemulsion ME changes due to temperature change, the storage container TK
Depending on the inner volume of the latent heat storage medium microemulsion M
The volume change of E can be absorbed.
【００５０】かつ、潜熱蓄熱材料であるアルカン類材料
の密度は一般に水より小さいため、貯留容器ＴＫ内部に
おいて、アルカン類材料と水成分ＷＴが分離した場合、
貯留容器ＴＫ内の上部側にアルカン類材料が分布しやす
くなるが、貯留容器ＴＫの底部から内側上部へ所定長さ
Ｌの接続配管ＴＢ２を突出させることにより、水成分Ｗ
Ｔのみが流出することなく、潜熱蓄熱材料であるアルカ
ン類材料を均一に含んだマイクロエマルジョンＭＥとし
て熱媒体ポンプＰＭへ流出させることが可能になる。Since the density of the alkane material which is the latent heat storage material is generally smaller than that of water, when the alkane material and the water component WT are separated inside the storage container TK,
Although the alkane material is likely to be distributed on the upper side in the storage container TK, the water component W can be formed by projecting the connection pipe TB2 having a predetermined length L from the bottom of the storage container TK to the upper inside.
Only T does not flow out, and it becomes possible to flow out to the heat medium pump PM as a microemulsion ME uniformly containing the alkanes material which is a latent heat storage material.
【００５１】以上のように、実施の形態１の冷却装置
は、電子機器等の運転に際して、発熱体ＣＰＵの冷却に
必要なエネルギーを最小限に抑制しながら、発熱体ＣＰ
Ｕの温度上昇に対して冷却が必要な場合には潜熱蓄熱媒
体、及び空気Ａｉｒの強制対流により放熱され、かつ発
熱体ＣＰＵの温度上昇を抑制することができる。As described above, the cooling device according to the first embodiment suppresses the energy required for cooling the heating element CPU to a minimum when operating the electronic device or the like, while maintaining the heating element CP.
When cooling is required with respect to the temperature rise of U, heat is radiated by the latent heat storage medium and forced convection of the air Air, and the temperature rise of the heating element CPU can be suppressed.
【００５２】また、熱媒体としてマイクロエマルジョン
ＭＥを利用することより安定な特性を有し、熱容量が増
加するという利点を確保しながら、かつ水成分も有して
いることより流動性、及び熱輸送性も確保することが可
能となる。Further, the use of the microemulsion ME as the heat medium has more stable characteristics and secures the advantage that the heat capacity is increased, and since it also has the water component, it has fluidity and heat transport. It is also possible to secure the property.
【００５３】更に、貯留容器ＴＫを設置することによ
り、潜熱蓄熱媒体の温度変化による体積変化が生じた場
合においても、貯留容器ＴＫの内容積により、潜熱蓄熱
媒体の体積変化を吸収し、かつ水成分と潜熱蓄熱材料と
の混合比率が均一な状態で循環させることが可能にな
る。Further, by installing the storage container TK, even if the volume change due to the temperature change of the latent heat storage medium occurs, the internal volume of the storage container TK absorbs the volume change of the latent heat storage medium, and It is possible to circulate the components and the latent heat storage material with a uniform mixing ratio.
【００５４】（実施の形態２）次に、本発明の実施の形
態２について図面を参照しながら説明するが、実施の形
態１と同一構成部分については同一符号を付して詳細な
説明を省略する。(Second Embodiment) Next, a second embodiment of the present invention will be described with reference to the drawings. The same components as those of the first embodiment will be designated by the same reference numerals and detailed description thereof will be omitted. To do.
【００５５】図３は、本発明の実施の形態２による冷却
装置内部の要部概略図を示す。FIG. 3 is a schematic view of the essential parts inside a cooling device according to the second embodiment of the present invention.
【００５６】本発明の実施の形態２は、構成面では実施
の形態１で示した潜熱蓄熱媒体が水／オクタコサン系の
マイクロエマルジョンＭＥであるに替わって、水とアル
カン類材料をメラミン樹脂等の非水溶性の高分子膜でカ
プセル化したマイクロカプセルとの混合溶液ＭＣとす
る。In the second embodiment of the present invention, in terms of constitution, the latent heat storage medium shown in the first embodiment is replaced by a water / octacosane-based microemulsion ME, and water and alkane materials are replaced by melamine resin or the like. A mixed solution MC with microcapsules encapsulated with a water-insoluble polymer film is used.
【００５７】更に、本発明の実施の形態２は、実施の形
態１で示した構成に加えて、吸熱用熱交換器ＨＥＸ１の
出口配管付近に熱的に接触して吸熱用熱交換器ＨＥＸ１
の温度Ｔｐを検出する第２温度検出手段Ｔｈ２を吸熱用
熱交換器ＨＥＸ１の出口配管に設置し、かつ第１制御装
置Ｃｎｔ１に替わって、第１温度検出手段Ｔｈ１による
検出温度Ｔｃが第１設定温度Ｔｓ１以上に達した時点で
熱媒体ポンプＰＭの運転を開始し、さらに第２温度検出
手段Ｔｈ２による検出温度Ｔｐが第２設定温度Ｔｓ２以
上に達した時点で送風ファンＦＮの運転を開始するとい
う第２制御装置Ｃｎｔ２を備えている点が異なる。Further, in addition to the structure shown in the first embodiment, the second embodiment of the present invention is in thermal contact with the vicinity of the outlet pipe of the heat absorption heat exchanger HEX1 and the heat absorption heat exchanger HEX1.
The second temperature detecting means Th2 for detecting the temperature Tp of the first temperature detecting means Th1 is installed in the outlet pipe of the heat exchanger for heat absorption HEX1 and the temperature Tc detected by the first temperature detecting means Th1 is set to the first setting in place of the first control device Cnt1. The operation of the heat medium pump PM is started when the temperature reaches the temperature Ts1 or higher, and the operation of the blower fan FN is started when the temperature Tp detected by the second temperature detecting means Th2 reaches the second set temperature Ts2 or higher. The difference is that the second control device Cnt2 is provided.
【００５８】ここで、第１温度検出手段Ｔｈ１より発熱
体ＣＰＵの表面温度Ｔｃを検出し、潜熱蓄熱媒体である
水／マイクロカプセル混合溶液ＭＣの潜熱蓄熱材料であ
るオクタコサンの融点Ｔｍが６１．５℃であることよ
り、第１設定温度Ｔｓ１＝７０℃、第２設定温度Ｔｓ２
＝８０℃とし、即ち潜熱蓄熱材料の融点Ｔｍは第１設定
温度Ｔｓ１より低く、かつ潜熱蓄熱材料の融点Ｔｍと第
１設定温度Ｔｓ１との差は２０Ｋ以内としている。Here, the surface temperature Tc of the heating element CPU is detected by the first temperature detecting means Th1, and the melting point Tm of octacosan, which is the latent heat storage material of the water / microcapsule mixed solution MC which is the latent heat storage medium, is 61.5. Since it is ℃, the first set temperature Ts1 = 70 ℃, the second set temperature Ts2
= 80 ° C, that is, the melting point Tm of the latent heat storage material is lower than the first set temperature Ts1, and the difference between the melting point Tm of the latent heat storage material and the first set temperature Ts1 is within 20K.
【００５９】以上のように構成された実施の形態２によ
る冷却装置の動作内容について図４に示すフローチャー
トを用いて説明する。The operation contents of the cooling device according to the second embodiment configured as described above will be described with reference to the flowchart shown in FIG.
【００６０】まず、ある電子機器において発熱体ＣＰＵ
の冷却装置が運転開始された後、ｓｔｅｐ１１にて温度
検出時間間隔ＩＮＴがΔτ以上となるまで繰り返しによ
り待機し、温度検出時間間隔ＩＮＴがΔτ以上になった
時点でｓｔｅｐ１２において発熱体ＣＰＵの表面温度Ｔ
ｃ、及び吸熱用熱交換器ＨＥＸ１の温度Ｔｐを検出す
る。First, in a certain electronic device, a heating element CPU
After the cooling device is started up, it waits repeatedly until the temperature detection time interval INT becomes Δτ or more at step 11, and when the temperature detection time interval INT becomes Δτ or more, at step 12, the surface temperature of the heating element CPU T
c, and the temperature Tp of the heat exchanger for heat absorption HEX1 are detected.
【００６１】そして、ｓｔｅｐ１３において発熱体ＣＰ
Ｕの表面温度Ｔｃと第１設定温度Ｔｓ１（＝７０℃）と
を比較し、Ｔｃ＜Ｔｓ１の場合はｓｔｅｐ１４に移行し
て、熱媒体ポンプＰＭ：停止（ＯＦＦ）、送風ファンＦ
Ｎ：停止（ＯＦＦ）としてｓｔｅｐ１１へ戻り、逆にＴ
ｃ≧Ｔｓ１の場合はｓｔｅｐ１５に移行して、熱媒体ポ
ンプＰＭのみ：運転（ＯＮ）、送風ファンＦＮ：停止
（ＯＦＦ）のままとする。Then, in step 13, the heating element CP
The surface temperature Tc of U is compared with the first set temperature Ts1 (= 70 ° C.), and if Tc <Ts1, the process proceeds to step 14, and the heat medium pump PM: stop (OFF), blower fan F
N: Stop (OFF) and return to step 11, and conversely T
If c ≧ Ts1, the process proceeds to step 15, and only the heat medium pump PM is kept operating (ON) and the blower fan FN is kept stopped (OFF).
【００６２】次に、ｓｔｅｐ１６において吸熱用熱交換
器ＨＥＸ１の温度Ｔｐと第２設定温度Ｔｓ２（＝８０
℃）とを比較し、Ｔｐ＜Ｔｓ２の場合は動作としては現
状維持しながら、ｓｔｅｐ１１へ戻り、逆にＴｐ≧Ｔｓ
２の場合はｓｔｅｐ１７に移行して、熱媒体ポンプＰ
Ｍ：運転（ＯＮ）、送風ファンＦＮ：運転（ＯＮ）とす
る。Next, at step 16, the temperature Tp of the heat exchanger for heat absorption HEX1 and the second set temperature Ts2 (= 80).
C.), and if Tp <Ts2, the operation is maintained as it is, and the process returns to step 11, and conversely Tp ≧ Ts
In the case of 2, the process moves to step 17 and the heat medium pump P
M: operation (ON), blower fan FN: operation (ON).
【００６３】そして、ｓｔｅｐ１８において、発熱体Ｃ
ＰＵの表面温度Ｔｃと上限温度Ｔｓ０（例えば、Ｔｓ０
＝９０℃）とを比較し、Ｔｃ＜Ｔｓ０の場合は動作とし
ては現状維持しながら、ｓｔｅｐ１１へ戻り、逆にＴｃ
≧Ｔｓ０の場合は、運転継続は危険と判断し、ｓｔｅｐ
１９に移行して発熱体ＣＰＵを保護するべく電子機器の
運転を停止する。Then, in step 18, the heating element C
The surface temperature Tc of PU and the upper limit temperature Ts0 (for example, Ts0
= 90 ° C.), and when Tc <Ts0, the current operation is maintained and the process returns to step 11 and vice versa.
If ≧ Ts0, it is judged that continued operation is dangerous and step
In step 19, the operation of the electronic device is stopped to protect the heating element CPU.
【００６４】以上の制御において、まず、発熱体ＣＰＵ
による発熱の伴う電子機器等の冷却装置運転中におい
て、発熱体ＣＰＵの検出温度Ｔｃが第１設定温度Ｔｓ１
より低い場合は、冷却の必要がないと判断し、送風ファ
ンＦＮ、及び熱媒体ポンプＰＭを動作させることがな
い。In the above control, first, the heating element CPU
During the operation of the cooling device such as an electronic device that generates heat due to, the detected temperature Tc of the heating element CPU is the first set temperature Ts1.
If it is lower, it is determined that cooling is not necessary, and the blower fan FN and the heat medium pump PM are not operated.
【００６５】この時、発熱体ＣＰＵの発熱は吸熱用熱交
換器ＨＥＸ１により潜熱蓄熱媒体である水／マイクロカ
プセル混合溶液ＭＣへ吸熱され、冷却装置の内部全体に
充填されている水／マイクロカプセル混合溶液ＭＣの温
度が潜熱蓄熱材料の融点Ｔｍ以下の場合、水／マイクロ
カプセル混合溶液ＭＣは固相の状態で温度上昇してい
き、潜熱蓄熱材料の融点Ｔｍに達すると、温度一定のま
ま固相から液相へと相変化が生じて潜熱蓄熱材料の保有
量に応じた潜熱量が水／マイクロカプセル混合溶液ＭＣ
に蓄熱される。At this time, the heat generated by the heating element CPU is absorbed by the water / microcapsule mixed solution MC, which is a latent heat storage medium, by the heat exchanger for heat absorption HEX1, and the water / microcapsule mixed inside the cooling device is mixed. When the temperature of the solution MC is equal to or lower than the melting point Tm of the latent heat storage material, the temperature of the water / microcapsule mixed solution MC rises in the solid phase state, and when it reaches the melting point Tm of the latent heat storage material, the solid phase remains constant. A phase change occurs from the liquid phase to the liquid phase, and the amount of latent heat corresponding to the amount of latent heat storage material retained is
Is stored in.
【００６６】即ち、発熱体ＣＰＵの発熱量が水／マイク
ロカプセル混合溶液ＭＣの有する最大蓄熱量以下の場合
は、熱媒体ポンプＰＭ、及び送風ファンＦＮを運転する
ことなく、発熱体ＣＰＵの発熱処理を行うことができ、
省エネルギー化に寄与できる。That is, when the heat generation amount of the heating element CPU is less than the maximum heat storage amount of the water / microcapsule mixed solution MC, the heat generation process of the heating element CPU is performed without operating the heat medium pump PM and the blowing fan FN. Can be done
It can contribute to energy saving.
【００６７】次に、発熱体ＣＰＵの発熱量が増加して水
／マイクロカプセル混合溶液ＭＣの潜熱蓄熱材料が完全
に液相へと変化し、その後、液相の状態で第１設定温度
Ｔｓ１以上に達した時点で、まず熱媒体ポンプＰＭのみ
の運転を開始し、送風ファンＦＮは停止のままとする。Next, the calorific value of the heating element CPU increases and the latent heat storage material of the water / microcapsule mixed solution MC completely changes to the liquid phase, and thereafter, in the liquid phase state, the first set temperature Ts1 or more is exceeded. When the temperature reaches, the operation of only the heat medium pump PM is started and the blower fan FN is kept stopped.
【００６８】これにより、送風ファンＦＮを運転するこ
となく、熱媒体ポンプＰＭのみの運転により冷却装置内
部の全ての水／マイクロカプセル混合溶液ＭＣがほぼ均
一な温度分布となり、最小電力にて潜熱蓄熱媒体の保有
し得る熱容量を有効に利用することができる。As a result, all the water / microcapsule mixed solution MC in the cooling device has a substantially uniform temperature distribution by operating only the heat medium pump PM without operating the blower fan FN, and the latent heat storage is performed with the minimum power. The heat capacity of the medium can be effectively used.
【００６９】更に、発熱体ＣＰＵの発熱量が増加して吸
熱用熱交換器ＨＥＸ１の温度Ｔｐが第２設定温度Ｔｓ２
以上に達した時点で送風ファンＦＮの運転を開始するこ
とにより、水／マイクロカプセル混合溶液ＭＣが吸熱熱
交換器ＨＥＸ１と放熱用熱交換器ＨＥＸ２との間を循環
し、吸熱熱交換器ＨＥＸ１で吸熱した熱を放熱用熱交換
器ＨＥＸ２において管内／管外側強制対流熱伝達により
水／マイクロカプセル混合溶液ＭＣから空気中へ放熱さ
れる。その結果、発熱体ＣＰＵからの発熱量増大に対し
て放熱用熱交換器ＨＥＸ２からの放熱量を増大させるこ
とにより、発熱体ＣＰＵの温度上昇を抑制することがで
きる。Further, the amount of heat generated by the heating element CPU increases, and the temperature Tp of the heat exchanger for heat absorption HEX1 becomes the second set temperature Ts2.
By starting the operation of the blower fan FN when reaching the above, the water / microcapsule mixed solution MC circulates between the endothermic heat exchanger HEX1 and the heat radiating heat exchanger HEX2, and in the endothermic heat exchanger HEX1. The absorbed heat is radiated from the water / microcapsule mixed solution MC into the air in the heat radiating heat exchanger HEX2 by forced convection heat transfer inside / outside the tube. As a result, it is possible to suppress an increase in the temperature of the heating element CPU by increasing the amount of heat radiation from the heat radiation heat exchanger HEX2 with respect to the increase in the amount of heat generation from the heating element CPU.
【００７０】以上より、発熱体ＣＰＵからの発熱量増大
に対して、発熱体ＣＰＵの温度が比較的低い場合はでき
るだけ省電力にて発熱処理を行い、発熱体ＣＰＵの温度
が比較的高い場合のみ、熱媒体ポンプＰＭ、及び送風フ
ァンＦＮを運転することにより、発熱体ＣＰＵの温度レ
ベルに応じた省エネルギー運転、かつ熱媒体ポンプＰ
Ｍ、及び送風ファンＦＮの長寿命化を実現できる。As described above, when the temperature of the heating element CPU is relatively low against the increase in the amount of heat generated by the heating element CPU, the heat generation processing is performed with the lowest possible power consumption, and only when the temperature of the heating element CPU is relatively high. , The heat medium pump PM, and the blower fan FN are operated to save energy according to the temperature level of the heating element CPU, and the heat medium pump P
It is possible to extend the service life of M and the blower fan FN.
【００７１】また、潜熱蓄熱媒体である水／マイクロカ
プセル混合溶液ＭＣは、水と、蓄熱材料であるアルカン
類材料をメラミン樹脂等の非水溶性の高分子膜でカプセ
ル化したマイクロカプセルとの混合溶液であることによ
り、熱媒体として安定な特性を有し、熱容量が増加する
という利点を確保しながら、かつ水成分も有しているこ
とより熱輸送性も確保でき、その結果、熱媒体ポンプＰ
Ｍによる潜熱搬送が可能となる。The water / microcapsule mixed solution MC which is a latent heat storage medium is a mixture of water and microcapsules in which an alkane material which is a heat storage material is encapsulated by a water-insoluble polymer film such as melamine resin. Since it is a solution, it has stable characteristics as a heat medium, and while it has the advantages of increasing the heat capacity, it also has a water component, so it can also secure heat transport properties, and as a result, a heat medium pump. P
The latent heat transfer by M becomes possible.
【００７２】なお、水／マイクロカプセル混合溶液ＭＣ
の場合、潜熱蓄熱材料であるアルカン類材料が直接、水
と接触することがないため、実施の形態２で示したマイ
クロエマルジョンの場合と比較して圧力損失が低くなる
という利点がある。Water / microcapsule mixed solution MC
In this case, the alkane material that is the latent heat storage material does not come into direct contact with water, so that there is an advantage that the pressure loss becomes lower than in the case of the microemulsion described in the second embodiment.
【００７３】そして、水成分を連続相とし、潜熱蓄熱材
料を分散相とすることにより、発熱体ＣＰＵの温度が低
く、水／マイクロカプセル混合溶液ＭＣの温度が潜熱蓄
熱材料の融点Ｔｍよりも低い場合においても、潜熱蓄熱
材料オクタコサンのみが固相となり、０℃以上である限
り、水成分が固相となることがない。Since the water component is the continuous phase and the latent heat storage material is the dispersed phase, the temperature of the heating element CPU is low and the temperature of the water / microcapsule mixed solution MC is lower than the melting point Tm of the latent heat storage material. Also in this case, only the latent heat storage material octacosan becomes a solid phase, and the water component does not become a solid phase as long as it is 0 ° C. or higher.
【００７４】従って、潜熱蓄熱媒体である水／マイクロ
カプセル混合溶液ＭＣの温度が潜熱蓄熱材料の融点Ｔｍ
よりも低い場合においても、水／マイクロカプセル混合
溶液ＭＣとしての流動性は確保できるために、吸熱用熱
交換器ＨＥＸ１、放熱用熱交換器ＨＥＸ２、熱媒体ポン
プＰＭ、及びそれぞれを連通する配管内部ＴＢにおいて
自然対流による熱移動が可能となる。Therefore, the temperature of the water / microcapsule mixed solution MC as the latent heat storage medium is the melting point Tm of the latent heat storage material.
Since the fluidity of the water / microcapsule mixed solution MC can be secured even when the temperature is lower than the above, the heat absorbing heat exchanger HEX1, the heat radiating heat exchanger HEX2, the heat medium pump PM, and the inside of the pipes communicating with each other In TB, heat transfer by natural convection becomes possible.
【００７５】更に、貯留容器ＴＫを設置することによ
り、潜熱蓄熱媒体である水／マイクロカプセル混合溶液
ＭＣの温度変化による体積変化が生じた場合において
も、貯留容器ＴＫの内容積により、水／マイクロカプセ
ル混合溶液ＭＣの体積変化を吸収することができる。Further, by installing the storage container TK, even when the volume change of the water / microcapsule mixed solution MC, which is the latent heat storage medium, is caused by the temperature change, the water / micro volume is changed by the internal volume of the storage container TK. The volume change of the capsule mixed solution MC can be absorbed.
【００７６】かつ、潜熱蓄熱材料であるアルカン類材料
の密度は一般に水より小さいため、貯留容器ＴＫ内部に
おいて、アルカン類材料と水成分ＷＴが分離した場合、
貯留容器ＴＫ内の上部側にアルカン類材料が分布しやす
くなるが、貯留容器ＴＫの底部から内側上部へ所定長さ
Ｌの接続配管ＴＢ２を突出させることにより、水成分Ｗ
Ｔのみが流出することなく、潜熱蓄熱材料であるアルカ
ン類材料を均一に含んだ水／マイクロカプセル混合溶液
ＭＣとして熱媒体ポンプＰＭへ流出させることが可能に
なる。Since the density of the alkane material which is the latent heat storage material is generally smaller than that of water, when the alkane material and the water component WT are separated inside the storage container TK,
Although the alkane material is likely to be distributed on the upper side in the storage container TK, the water component W can be formed by projecting the connection pipe TB2 having a predetermined length L from the bottom of the storage container TK to the upper inside.
It is possible to cause only T to flow out to the heat medium pump PM as a water / microcapsule mixed solution MC uniformly containing an alkane material that is a latent heat storage material.
【００７７】以上のように、実施の形態２の冷却装置
は、電子機器等の運転に際して、発熱体ＣＰＵの冷却に
必要なエネルギーを最小限に抑制しながら、発熱体ＣＰ
Ｕの温度上昇に対して熱媒体ポンプＰＭ、及び送風ファ
ンＦＮを順次、運転開始することにより、発熱体ＣＰＵ
の冷却が必要な場合には、潜熱蓄熱媒体の強制循環、及
び空気Ａｉｒの強制対流により放熱量増大が図れ、発熱
体ＣＰＵの温度上昇を抑制することができる。As described above, the cooling device of the second embodiment suppresses the energy required to cool the heating element CPU to a minimum when operating the electronic equipment and the like, while maintaining the heating element CP.
When the heat medium pump PM and the blower fan FN are sequentially started in response to the temperature rise of U, the heating element CPU
When the cooling is required, the amount of heat radiation can be increased by the forced circulation of the latent heat storage medium and the forced convection of the air Air, and the temperature rise of the heating element CPU can be suppressed.
【００７８】また、熱媒体として水／マイクロカプセル
混合溶液ＭＣを利用することより熱容量が増加するとい
う利点を確保しながら、かつ水成分も有していることよ
り流動性、及び熱輸送性も確保することが可能となる。Further, while the advantage that the heat capacity is increased by using the water / microcapsule mixed solution MC as the heat medium is secured, the fluidity and the heat transportability are also secured by having the water component. It becomes possible to do.
【００７９】更に、貯留容器ＴＫを設置することによ
り、潜熱蓄熱媒体の温度変化による体積変化が生じた場
合においても、貯留容器ＴＫの内容積により、潜熱蓄熱
媒体の体積変化を吸収し、かつ水成分と潜熱蓄熱材料と
の混合比率が均一な状態で循環させることが可能にな
る。Furthermore, by installing the storage container TK, even when the volume change of the latent heat storage medium due to the temperature change occurs, the internal volume of the storage container TK absorbs the volume change of the latent heat storage medium, and It is possible to circulate the components and the latent heat storage material with a uniform mixing ratio.
【００８０】[0080]
【発明の効果】以上説明したように請求項１に記載の発
明は、潜熱蓄熱媒体を循環させる熱媒体循環手段と、発
熱体に対して熱的に接触して、発熱体の発生熱を潜熱蓄
熱媒体へ熱移動させる吸熱用熱交換手段と、吸熱用熱交
換手段を介して発熱体より吸熱した潜熱蓄熱媒体の熱を
空気中へ熱移動させる放熱用熱交換手段と、放熱用熱交
換手段の近傍に設置した送風手段とが設置され、熱媒体
循環手段、吸熱用熱交換手段、及び放熱用熱交換手段は
順次連通されて閉回路を形成して内部を潜熱蓄熱媒体が
循環し、また、発熱体の温度を検出する第１温度検出手
段と、検出した温度信号を処理する温度信号処理手段
と、送風手段の運転／停止を行う送風手段制御装置と、
熱媒体搬送手段の運転／停止を行う熱媒体搬送手段制御
装置と、第１温度検出手段により検出した温度が第１所
定温度以上に達した時点で熱媒体循環手段、及び送風手
段の運転を開始する第１制御装置より構成されているも
のである。As described above, according to the first aspect of the invention, the heat medium circulating means for circulating the latent heat storage medium and the heating element are brought into thermal contact with each other to generate the latent heat of the heat generated by the heating element. An endothermic heat exchange means for transferring heat to the heat storage medium, a heat dissipation heat exchange means for transferring heat of the latent heat storage medium absorbed from the heating element through the endothermic heat exchange means into the air, and a heat dissipation heat exchange means Is installed in the vicinity of the heat transfer means, the heat medium circulating means, the heat absorbing heat exchanging means, and the heat radiating heat exchanging means are sequentially connected to each other to form a closed circuit in which the latent heat storage medium circulates. A first temperature detecting means for detecting the temperature of the heating element, a temperature signal processing means for processing the detected temperature signal, and a blowing means control device for operating / stopping the blowing means,
The heat medium carrying means control device for operating / stopping the heat medium carrying means, and the operation of the heat medium circulating means and the air blowing means are started when the temperature detected by the first temperature detecting means reaches or exceeds the first predetermined temperature. It is composed of a first control device that does.
【００８１】これにより、発熱体の発熱量が潜熱蓄熱媒
体の有する最大蓄熱量以下の場合は、熱媒体循環手段、
及び送風手段を運転することなく、発熱体の発熱処理を
行うことができ、省エネルギー化に寄与できる。Accordingly, when the calorific value of the heating element is less than the maximum calorific value of the latent heat storage medium, the heat medium circulating means,
Also, the heat generation process of the heating element can be performed without operating the air blowing unit, which contributes to energy saving.
【００８２】そして、発熱体の発熱量が増加して潜熱蓄
熱媒体が完全に液相へと変化し、その後、液相の状態で
第１所定温度以上に達した時点で熱媒体循環手段、及び
送風手段の運転を開始することにより、潜熱蓄熱媒体が
放熱用熱交換手段へ搬送され、そこで放熱用熱交換手段
を介して強制対流熱伝達により潜熱蓄熱媒体から空気中
へ放熱される。その結果、発熱体からの発熱量増大に対
して、発熱体の温度上昇を抑制することができる。Then, the calorific value of the heating element increases and the latent heat storage medium completely changes to the liquid phase. After that, when the temperature reaches the first predetermined temperature or higher in the liquid phase state, the heat medium circulating means, and By starting the operation of the air blowing means, the latent heat storage medium is conveyed to the heat radiating heat exchange means, where it is radiated into the air by forced convection heat transfer via the heat radiating heat exchange means. As a result, it is possible to suppress an increase in the temperature of the heating element with respect to an increase in the amount of heat generated by the heating element.
【００８３】また、請求項２に記載の発明は、請求項１
記載の発明に加えて、吸熱用熱交換手段の出口配管付近
に対して熱的に接触して吸熱用熱交換手段の温度を検出
する第２温度検出手段を設置し、第１制御装置に替わっ
て、第１温度検出手段による検出温度が第１所定温度以
上に達した時点で熱媒体搬送手段の運転を開始し、さら
に第２温度検出手段による検出温度が第２所定温度以上
に達した時点で送風手段の運転を開始する第２制御装置
を備えたものである。The invention described in claim 2 is the same as claim 1
In addition to the invention described above, a second temperature detecting means for detecting the temperature of the heat absorbing heat exchanging means by thermally contacting with the vicinity of the outlet pipe of the heat absorbing heat exchanging means is installed, and the second controller is replaced with the first controller. Then, when the temperature detected by the first temperature detecting means reaches the first predetermined temperature or higher, the operation of the heat medium carrying means is started, and when the temperature detected by the second temperature detecting means reaches the second predetermined temperature or higher. The second control device for starting the operation of the blower means is provided.
【００８４】これにより、発熱体の発熱量が増加して潜
熱蓄熱媒体が完全に液相へと変化し、その後、液相の状
態で第１所定温度以上に達した時点で熱媒体循環手段の
運転を開始することにより、送風手段を運転することな
く、熱媒体循環手段のみにより冷却装置内部の全ての潜
熱蓄熱媒体がほぼ均一な温度分布となり、最小電力にて
潜熱蓄熱媒体の保有し得る熱容量を有効に利用すること
ができる。As a result, the calorific value of the heating element is increased, the latent heat storage medium is completely changed to the liquid phase, and thereafter, when the temperature exceeds the first predetermined temperature in the liquid state, the heat medium circulating means By starting the operation, all the latent heat storage medium inside the cooling device has a substantially uniform temperature distribution only by the heat medium circulation means without operating the blowing means, and the heat capacity that the latent heat storage medium can hold with the minimum power Can be used effectively.
【００８５】更に、発熱体の発熱量が増加して潜熱蓄熱
媒体の温度が第２所定温度以上に達した時点で送風手段
の運転を開始することにより、潜熱蓄熱媒体が放熱用熱
交換手段へ強制的に搬送され、そこで放熱用熱交換手段
を介して強制対流熱伝達により潜熱蓄熱媒体から空気中
へ放熱される。その結果、発熱体からの発熱量増大に対
して放熱量を増大させることにより、発熱体の温度上昇
を抑制することができる。Further, the operation of the blower means is started when the amount of heat generated by the heating element increases and the temperature of the latent heat storage medium reaches the second predetermined temperature or higher, whereby the latent heat storage medium is transferred to the heat radiating heat exchange means. It is forcibly conveyed and is radiated from the latent heat storage medium into the air by forced convection heat transfer through the heat radiating heat exchange means. As a result, it is possible to suppress the temperature rise of the heat generating element by increasing the heat radiation amount with respect to the heat generation amount of the heat generating element.
【００８６】以上より、発熱体からの発熱量増大に対し
て、発熱体の温度が比較的低い場合はできるだけ省電力
にて発熱処理を行い、発熱体の温度が比較的高い場合の
み、熱媒体循環手段、及び送風手段を運転することによ
り、発熱体の温度レベルに応じた省エネルギー運転、か
つ熱媒体循環手段、及び送風手段の長寿命化を実現でき
る。As described above, when the temperature of the heating element is relatively low, the heat generation process is performed with the lowest possible power consumption with respect to the increase in the amount of heat generated by the heating element, and only when the temperature of the heating element is relatively high, the heat medium is heated. By operating the circulation means and the air blowing means, it is possible to realize energy-saving operation according to the temperature level of the heating element and to extend the life of the heat medium circulation means and the air blowing means.
【００８７】また、請求項３に記載の発明は、請求項１
または請求項２のいずれか一項に記載の発明における潜
熱蓄熱媒体として、水の中に、蓄熱材料であるアルカン
類材料を滴状に微細化して分散したマイクロエマルジョ
ン、または水と、蓄熱材料であるアルカン類材料をメラ
ミン樹脂等の非水溶性の高分子膜でカプセル化したマイ
クロカプセルとの混合溶液を用ものである。The invention described in claim 3 is the same as claim 1
Alternatively, as the latent heat storage medium in the invention according to any one of claims 2 to 3, a microemulsion in which an alkane material that is a heat storage material is atomized and dispersed in water, or water and a heat storage material are used. It is for use as a mixed solution with a microcapsule obtained by encapsulating a certain alkane material with a water-insoluble polymer film such as melamine resin.
【００８８】これにより、潜熱蓄熱媒体として安定な特
性を有し、熱容量が増加するという利点を確保しなが
ら、かつ水成分も有していることより熱輸送性も確保で
き、その結果、熱媒体循環手段による搬送が可能とな
る。As a result, the latent heat storage medium has stable characteristics and the advantage that the heat capacity is increased, and at the same time, the heat transportability can be secured because the water component is also contained. As a result, the heat medium is obtained. It becomes possible to carry by the circulation means.
【００８９】また、潜熱蓄熱媒体の温度が潜熱蓄熱材料
の融点よりも低い場合においても、潜熱蓄熱媒体として
の流動性は確保できるために、吸熱用熱交換手段、放熱
用熱交換手段、熱媒体搬送手段、及びそれぞれを連通す
る配管内部において自然対流による熱移動が可能とな
る。Further, even when the temperature of the latent heat storage medium is lower than the melting point of the latent heat storage material, since the fluidity as the latent heat storage medium can be secured, the heat absorbing heat exchanging means, the heat radiating heat exchanging means, the heat medium Heat can be transferred by natural convection inside the transfer means and inside the pipes that communicate with each other.
【００９０】また、請求項４に記載の発明は、請求項３
に記載の発明に加えて、上部に入口配管を設置し、底部
から内側上部へ所定長さの出口配管を突出させた、潜熱
蓄熱媒体を貯留する熱媒体貯留手段を、放熱用熱交換手
段と吸熱用熱交換手段とを連通する配管中に設置するも
のである。The invention described in claim 4 is the same as claim 3
In addition to the invention described in, the inlet pipe is installed in the upper part, the outlet pipe of a predetermined length is projected from the bottom to the upper inside, the heat medium storage means for storing the latent heat storage medium, and the heat exchange means for heat dissipation. It is installed in a pipe communicating with the heat exchange means for heat absorption.
【００９１】これにより、潜熱蓄熱媒体の温度変化によ
る体積変化が生じた場合においても、熱媒体貯留手段の
保有する内容積により、潜熱蓄熱媒体の体積変化を吸収
することができる。As a result, even if the volume change of the latent heat storage medium due to the temperature change occurs, the volume change of the latent heat storage medium can be absorbed by the internal volume held by the heat medium storage means.
【００９２】また、潜熱蓄熱材料であるアルカン類材料
の密度は一般に水より小さいため、熱媒体貯留手段内部
において、アルカン類材料と水成分が分離した場合、熱
媒体貯留手段内の上部側に分布しやすくなるが、熱媒体
貯留手段の底部から内側上部へ所定長さの配管を突出さ
せることにより、水成分のみが流出することなく、潜熱
蓄熱材料であるアルカン類材料を含んだ潜熱蓄熱媒体と
して熱媒体循環手段へ流出させることが可能になる。Further, since the density of the alkane material which is the latent heat storage material is generally smaller than that of water, when the alkane material and the water component are separated inside the heat medium storage means, they are distributed to the upper side in the heat medium storage means. Although it is easier to do, by projecting a pipe of a predetermined length from the bottom of the heat medium storage means to the upper inside, as a latent heat storage medium containing an alkane material that is a latent heat storage material, only the water component does not flow out. It becomes possible to flow out to the heat medium circulation means.
【００９３】また、請求項５に記載の発明は、請求項４
に記載の発明に加えて、潜熱蓄熱媒体を構成する潜熱蓄
熱材料の融点は第１所定温度より低く、かつ潜熱蓄熱材
料の融点と第１所定温度との差を略２０Ｋ以内とするも
のである。The invention described in claim 5 is the same as that of claim 4
In addition to the invention described in, the melting point of the latent heat storage material that constitutes the latent heat storage medium is lower than the first predetermined temperature, and the difference between the melting point of the latent heat storage material and the first predetermined temperature is approximately 20K or less. .
【００９４】これにより、発熱体の発熱量が増加した場
合において、潜熱蓄熱媒体の温度が潜熱蓄熱材料の融点
より低い時点で熱媒体循環手段のみを運転させることに
より、潜熱蓄熱媒体の温度分布を均一にしておくことが
できる。Accordingly, when the amount of heat generated by the heating element is increased, the temperature distribution of the latent heat storage medium is changed by operating only the heat medium circulating means at the time when the temperature of the latent heat storage medium is lower than the melting point of the latent heat storage material. Can be kept uniform.
【００９５】一方、潜熱蓄熱媒体の温度が潜熱蓄熱材料
の融点より大幅に低い時点、例えば融点より略２０Ｋを
越える低い温度レベルでは発熱体にとって支障のない程
度であり、このような僅かな温度上昇においては発熱体
を冷却する必要はない。On the other hand, at the time when the temperature of the latent heat storage medium is significantly lower than the melting point of the latent heat storage material, for example, at a low temperature level exceeding about 20 K below the melting point, there is no problem for the heating element and such a slight temperature rise. In, it is not necessary to cool the heating element.
【００９６】従って、発熱体の発熱量が増加して冷却の
必要性が発生した場合のみにおいて、熱媒体循環手段を
運転させることにより、省エネルギー化、及び熱媒体循
環手段の長寿命化を図りながら発熱体の冷却を行うこと
ができる。Therefore, the heat medium circulating means is operated only when the heat generation amount of the heat generating element is increased and the necessity of cooling is generated, thereby saving energy and prolonging the life of the heat medium circulating means. The heating element can be cooled.
【図１】本発明による冷却装置の実施の形態１の要部概
略図FIG. 1 is a schematic view of a main part of a cooling device according to a first embodiment of the present invention.
【図２】同実施の形態の冷却装置における動作を示すフ
ローチャートFIG. 2 is a flowchart showing the operation of the cooling device of the same embodiment.
【図３】本発明による冷却装置の実施の形態２の要部概
略図FIG. 3 is a schematic view of essential parts of a cooling device according to a second embodiment of the present invention.
【図４】同実施の形態の冷却装置における動作を示すフ
ローチャートFIG. 4 is a flowchart showing the operation of the cooling device of the same embodiment.
【図５】従来技術の冷却装置の要部概略構成図FIG. 5 is a schematic configuration diagram of a main part of a conventional cooling device.
Ａｉｒ 空気 Ｃｎｔ１ 第１制御装置 Ｃｎｔ２ 第２制御装置 ＣＰＵ 発熱体 ＦＮ 送風ファン ＦＮｃｎｔ 送風ファン制御装置 ＨＥＸ１ 吸熱用熱交換器 ＨＥＸ２ 放熱用熱交換器 Ｌ 所定長さ ＭＣ 水／マイクロカプセル混合溶液 ＭＥ マイクロエマルジョン ＰＭ 熱媒体ポンプ ＰＭｃｎｔ 熱媒体ポンプ制御装置 ＴＢ 接続配管 ＴＢ１ 入口配管 ＴＢ２ 出口配管 Ｔｈ１ 第１温度検出手段 Ｔｈ２ 第２温度検出手段 Ｔｈｃａｌ 温度信号処理手段 ＴＫ 貯留容器 Ｔｓ１ 第１設定温度 Ｔｓ２ 第２設定温度 Air Air Cnt1 first control device Cnt2 second control device CPU heating element FN blower fan FNcnt Blower fan controller HEX1 Endothermic heat exchanger HEX2 heat dissipation heat exchanger L predetermined length MC water / microcapsule mixed solution ME Micro Emulsion PM heat medium pump PMcnt Heat medium pump controller TB connection piping TB1 inlet piping TB2 outlet piping Th1 first temperature detecting means Th2 second temperature detecting means Thcal temperature signal processing means TK storage container Ts1 first set temperature Ts2 second set temperature
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｈ０１Ｌ 23/473 Ｃ０９Ｋ 5/00 Ｌ Ｈ０５Ｋ 7/20 Ｇ０６Ｆ 1/00 ３６０Ａ ３６０Ｄ Ｆターム(参考） 3L044 AA01 AA04 BA06 CA14 DB02 DC03 DD02 EA04 FA02 FA03 FA04 HA01 HA03 HA04 JA01 KA03 KA04 KA05 5E322 DB06 DB12 FA01 FA03 5F036 AA01 BB35 BB56 BF03 ─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. 7 Identification code FI theme code (reference) H01L 23/473 C09K 5/00 L H05K 7/20 G06F 1/00 360A 360D F term (reference) 3L044 AA01 AA04 BA06 CA14 DB02 DC03 DD02 EA04 FA02 FA03 FA04 HA01 HA03 HA04 JA01 KA03 KA04 KA05 5E322 DB06 DB12 FA01 FA03 5F036 AA01 BB35 BB56 BF03
Claims (5)
段と、集積回路部品からなる発熱体に対して熱的に接触
して、前記発熱体における発生熱を内部に存在する前記
潜熱蓄熱媒体へ熱移動させる吸熱用熱交換手段と、前記
吸熱用熱交換手段を介して前記発熱体より吸熱した前記
潜熱蓄熱媒体の熱を空気中へ熱移動させる放熱用熱交換
手段と、前記放熱用熱交換手段の近傍に設置した送風手
段とが設置され、前記熱媒体循環手段、前記吸熱用熱交
換手段、及び前記放熱用熱交換手段は順次連通されて閉
回路を形成して内部を前記潜熱蓄熱媒体が循環し、ま
た、前記発熱体に対して熱的に接触して前記発熱体の温
度を検出する第１温度検出手段と、検出した温度信号を
処理する温度信号処理手段と、前記送風手段の運転／停
止を行う送風手段制御装置と、前記熱媒体搬送手段の運
転／停止を行う熱媒体搬送手段制御装置とからなり、前
記第１温度検出手段により検出した温度が第１所定温度
以上に達した時点で前記熱媒体循環手段、及び前記送風
手段の運転を開始する第１制御装置を備えたことを特徴
とする冷却装置。1. A heat medium circulating means for circulating a latent heat storage medium, and a heat generating element composed of an integrated circuit part are in thermal contact with each other to generate heat in the heat generating element to the latent heat storage medium existing therein. Endothermic heat exchange means for transferring heat, heat dissipation means for transferring heat of the latent heat storage medium absorbed from the heating element through the endothermic heat exchange means into the air, and the heat dissipation heat exchange An air blowing means installed near the means is installed, and the heat medium circulating means, the heat absorbing heat exchanging means, and the heat radiating heat exchanging means are sequentially communicated with each other to form a closed circuit and the inside thereof is the latent heat storage medium. Circulates, and is in thermal contact with the heating element to detect the temperature of the heating element, first temperature detecting means, temperature signal processing means for processing the detected temperature signal, and the blower means. Blower control to start / stop And a heat medium carrying means control device for operating / stopping the heat medium carrying means, wherein the heat medium circulating means is provided when the temperature detected by the first temperature detecting means reaches a first predetermined temperature or higher. And a first control device for starting the operation of the blower means.
段と、集積回路部品からなる発熱体に対して熱的に接触
して、前記発熱体における発生熱を内部に存在する前記
潜熱蓄熱媒体へ熱移動させる吸熱用熱交換手段と、前記
吸熱用熱交換手段を介して前記発熱体より吸熱した前記
潜熱蓄熱媒体の熱を空気中へ熱移動させる放熱用熱交換
手段と、前記放熱用熱交換手段の近傍に設置した送風手
段とが設置され、前記熱媒体循環手段、前記吸熱用熱交
換手段、及び前記放熱用熱交換手段は順次連通されて閉
回路を形成して内部を前記潜熱蓄熱媒体が循環し、ま
た、前記発熱体に対して熱的に接触して前記発熱体の温
度を検出する第１温度検出手段と、前記吸熱用熱交換手
段の出口配管付近に対して熱的に接触して前記吸熱用熱
交換手段の温度を検出する第２温度検出手段と、検出し
た温度信号を処理する温度信号処理手段と、前記送風手
段の運転／停止を行う送風手段制御装置と、前記熱媒体
搬送手段の運転／停止を行う熱媒体搬送手段制御装置と
からなり、前記第１温度検出手段による検出温度が第１
所定温度以上に達した時点で前記熱媒体搬送手段の運転
を開始し、さらに前記第２温度検出手段による検出温度
が第２所定温度以上に達した時点で前記送風手段の運転
を開始する第２制御装置を備えたことを特徴とする冷却
装置。2. A heat medium circulating means for circulating a latent heat storage medium, and a heat generating element composed of an integrated circuit part are in thermal contact with each other to generate heat in the heat generating element inside the latent heat storage medium. Endothermic heat exchange means for transferring heat, heat dissipation means for exchanging heat of the latent heat storage medium absorbed from the heating element through the endothermic heat exchange means into the air, and the heat dissipation heat exchange An air blowing means installed near the means is installed, and the heat medium circulating means, the heat absorbing heat exchanging means, and the heat radiating heat exchanging means are sequentially communicated with each other to form a closed circuit and the inside thereof is the latent heat storage medium. Circulates and is in thermal contact with the heating element and the first temperature detecting means for detecting the temperature of the heating element, and in the vicinity of the outlet pipe of the heat exchanging means for heat absorption. To detect the temperature of the endothermic heat exchange means Second temperature detecting means, temperature signal processing means for processing the detected temperature signal, air blowing means control device for operating / stopping the air blowing means, and heat medium transport for operating / stopping the heat medium transport means. Means control device, and the temperature detected by the first temperature detecting means is the first
A second operation of starting the operation of the heating medium transfer means when the temperature reaches a predetermined temperature or higher, and an operation of the blower means when the temperature detected by the second temperature detection means reaches a second predetermined temperature or higher. A cooling device comprising a control device.
熱材料であるアルカン類材料を滴状に微細化して分散し
たマイクロエマルジョン、または前記水と、前記蓄熱材
料である前記アルカン類材料をメラミン樹脂等の非水溶
性の高分子膜でカプセル化したマイクロカプセルとの混
合溶液を用いることを特徴とする請求項１または請求項
２のいずれか一項記載の冷却装置。3. As the latent heat storage medium, a microemulsion obtained by finely dispersing an alkane material that is a heat storage material in water in a droplet form, or the water and the alkane material that is the heat storage material. The cooling device according to claim 1 or 2, wherein a mixed solution with microcapsules encapsulated with a water-insoluble polymer film such as melamine resin is used.
上部へ所定長さの出口配管を突出させた、前記潜熱蓄熱
媒体を貯留する熱媒体貯留手段を、前記放熱用熱交換手
段と前記吸熱用熱交換手段とを連通する配管中に設置し
たことを特徴とする請求項３記載の冷却装置。4. A heat medium storage means for storing the latent heat storage medium, wherein an inlet pipe is installed at an upper portion, and an outlet pipe having a predetermined length is projected from a bottom portion to an inner upper portion. The cooling device according to claim 3, wherein the cooling device is installed in a pipe that communicates with the heat exchange means for heat absorption.
熱材料の融点は前記第１所定温度より低く、かつ前記潜
熱蓄熱材料の融点と前記第１所定温度との差を略２０Ｋ
以内としたことを特徴とする請求項３記載の冷却装置。5. The melting point of the latent heat storage material that constitutes the latent heat storage medium is lower than the first predetermined temperature, and the difference between the melting point of the latent heat storage material and the first predetermined temperature is approximately 20K.
The cooling device according to claim 3, wherein the cooling device is within the range.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002115863A JP2003314936A (en) | 2002-04-18 | 2002-04-18 | Cooling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002115863A JP2003314936A (en) | 2002-04-18 | 2002-04-18 | Cooling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003314936A true JP2003314936A (en) | 2003-11-06 |
Family
ID=29533810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002115863A Pending JP2003314936A (en) | 2002-04-18 | 2002-04-18 | Cooling device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2003314936A (en) |
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| JP2007533028A (en) * | 2004-04-12 | 2007-11-15 | エヌヴィディア コーポレイション | Expandable and shrinkable modular thermal solution |
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| JP2008060384A (en) * | 2006-08-31 | 2008-03-13 | Fujitsu Ltd | Cooling device, electronic equipment, and cooling medium |
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