JPH0638037B2 - heat pipe - Google Patents
heat pipeInfo
- Publication number
- JPH0638037B2 JPH0638037B2 JP59087857A JP8785784A JPH0638037B2 JP H0638037 B2 JPH0638037 B2 JP H0638037B2 JP 59087857 A JP59087857 A JP 59087857A JP 8785784 A JP8785784 A JP 8785784A JP H0638037 B2 JPH0638037 B2 JP H0638037B2
- Authority
- JP
- Japan
- Prior art keywords
- wick
- heat pipe
- heat
- magnetic
- iron
- 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.)
- Expired - Lifetime
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
- F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
- F28D15/06—Control arrangements therefor
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は熱の伝達を制御できるようなヒートパイプに関
するものである。TECHNICAL FIELD The present invention relates to a heat pipe capable of controlling heat transfer.
（従来の技術） ヒートパイプは一般に内面に金網状のウイツクを設け、
このウイツク中に作動流体が満たされた閉じた中空円管
等からなつており、その一端部は外部の熱源から加えら
れた熱によつて作動流体が蒸発する機構となつている蒸
発部と、この結果その部分の蒸気圧力が上がり、蒸気が
管内を移動する中間部である断熱部と蒸発の潜熱を吸熱
源に伝達して、凝縮する他端部である凝縮部よりなつて
いる。(Prior Art) A heat pipe is generally provided with a wire mesh-like wick on the inner surface,
The wick is made up of a closed hollow circular tube or the like filled with a working fluid, and one end of the wick is a vaporizing section that serves as a mechanism for the working fluid to be vaporized by heat applied from an external heat source, As a result, the steam pressure in that portion rises, and the steam is formed by the heat insulating portion, which is an intermediate portion where the steam moves in the pipe, and the condensing portion, which is the other end portion that transfers the latent heat of vaporization to the heat absorbing source and condenses.
ところで通常の型のヒートパイプに於ては、その作動温
度は熱源と吸熱源の状態によつて自動的に定まる。By the way, in a normal type heat pipe, its operating temperature is automatically determined by the states of the heat source and the heat absorbing source.
例えば、熱負荷が増加するとパイプの動作温度は上昇
し、温度勾配を逆にすると熱輸送の方向も逆になる。For example, increasing the heat load raises the operating temperature of the pipe, and reversing the temperature gradient reverses the direction of heat transport.
（解決しようとする問題点） しかし実際にヒートパイプを使用する場合、熱源温度が
ある値より高くなつたときは、熱流を遮断もしくは制限
する必要が生ずる場合がある。(Problems to be solved) However, when actually using the heat pipe, when the heat source temperature becomes higher than a certain value, it may be necessary to block or limit the heat flow.
（問題点を解決するための手段） 本発明は上記の如きヒートパイプにおいて、大部分を安
価なプラスチツクウイツクとなし、その一部にのみ磁性
金属からなるウイツクを用い、この磁性金属からなるウ
イツクを設けた部分のヒートパイプの外周に磁界発生手
段を設けて、これから発生する磁力の大きさにより磁性
金属からなるウイツクの空隙密度を密にしたり粗にした
りして作動流体の流量を制御するようにし、かつ２種の
ウイツクのうちの一方がプラスチツクウイツクであるこ
とにより銅と鉄の如く２種の金属ウイツクを併用した場
合および、鉄以外の金属パイプ例えば銅を使用した場合
に生じるイオン化傾向の差による電気化学的腐食の発生
を極度に小さくしたヒートパイプである。(Means for Solving Problems) In the heat pipe as described above, the present invention mainly uses an inexpensive plastic wick, and uses a wick made of a magnetic metal only in a part thereof, and a wick made of the magnetic metal. A magnetic field generating means is provided on the outer circumference of the heat pipe in which the magnetic fluid is generated, and the flow density of the working fluid is controlled by making the void density of the wick made of magnetic metal dense or rough. And when one of the two kinds of wicks is a plastic one, an ionization tendency occurs when two kinds of metal wicks such as copper and iron are used together and when a metal pipe other than iron, for example, copper is used. This is a heat pipe in which the occurrence of electrochemical corrosion due to the difference in is extremely reduced.
（実施例） 本発明の実施例を図によつて説明すると、ヒートパイプ
１の内面の大部分にはプラスチツクからなるウイツク２
が設けられ、中央辺にのみ鉄製の金網状のウイツク３が
設けられている。(Embodiment) An embodiment of the present invention will be described with reference to the drawings. Most of the inner surface of the heat pipe 1 is a wick 2 made of plastic.
And a wire mesh wick 3 made of iron is provided only on the central side.
４はこの鉄製の金網状のウイツク３に対応したヒートパ
イプの外表面上に設けられた多層巻の界磁巻線で、電流
を通すことによつて界磁束が生じ、磁力が発生し、これ
が鉄製の金網状ウイツク３に磁力によつて引張り力ない
し反撥力を及ぼしウイツクの密度を変化する。すなわ
ち、空隙密度を疎にしたり密にしたりする。５はヒート
パイプの蒸発部、６は断熱部、７は凝縮部であり、この
中には通常の作動流体であるアンモニア、水等が充填さ
れている。Reference numeral 4 denotes a multi-layered field winding provided on the outer surface of the heat pipe corresponding to the iron wire mesh-like wick 3. By passing an electric current, a field magnetic flux is generated and a magnetic force is generated. A magnetic force exerts a tensile force or a repulsive force on the iron wire mesh wick 3 to change the density of the wick. That is, the void density is made sparse or dense. Reference numeral 5 is an evaporating portion of the heat pipe, 6 is a heat insulating portion, and 7 is a condensing portion. A normal working fluid such as ammonia or water is filled therein.
（作用）（効果） 次に本発明のヒートパイプについてその作用を説明する
と、例えば界磁巻線４に1.5Ａ／mm2の電流密度の電流が
流れ、作動流体が移動して１００℃の熱伝達が行なわれ
ている場合、１００℃が過熱状態であり、８０℃の熱伝
達が所望の価であれば界磁電流密度を2.5Ａ／mm2として
界磁束を強めると磁性材のウイツクの密度が狭められて
作動流体の移動流量が減少するので所望の温度の熱伝達
ができる。(Operation) (Effect) Next, the operation of the heat pipe of the present invention will be described. For example, a current having a current density of 1.5 A / mm 2 flows through the field winding 4 and the working fluid moves to heat at 100 ° C. If the heat transfer is performed at 100 ° C and the heat transfer at 80 ° C is the desired value, the field current density is set to 2.5 A / mm 2 and the field flux is strengthened to increase the density of the wick of the magnetic material. Is narrowed and the moving flow rate of the working fluid is reduced, so that heat transfer at a desired temperature can be performed.
即ち本発明によれば電流による界磁制御によつて磁性材
のウイツクの密度を変化させて従って、空隙密度を疎に
したり密にすることを可能にし、毛細管圧力を調節し、
窮極的には熱伝導の制御を容易に行なうものである。That is, according to the present invention, it is possible to change the density of the wicks of the magnetic material by controlling the magnetic field by the current, thus making the void density sparse or dense, and adjusting the capillary pressure.
Ultimately, heat conduction is easily controlled.
なお、本発明で用いられるウイツクは鉄製の如く磁性材
のウイツク以外のものはプラスチツクウイツクであるの
で、例えば銅ウイツクと鉄ウイツクを併用したおよび、
鉄以外の金属パイプ例えば銅を使用した場合に生じるイ
オン化傾向の差による電気化学的腐食の発生を極度に小
さくし、長期にわたり信頼性のよいヒートパイプを提供
することができる。Since the wicks used in the present invention are plastic wicks other than the magnetic material wicks such as iron, a copper wick and an iron wick are used in combination, and
It is possible to extremely reduce the occurrence of electrochemical corrosion due to the difference in ionization tendency that occurs when a metal pipe other than iron, such as copper, is used, and to provide a reliable heat pipe for a long period of time.
なおヒートパイプの形状は中空円筒形、中空角柱形を問
わず、又、界磁巻線も通常使用されているものであれば
これに適用することができる。The shape of the heat pipe may be a hollow cylinder shape or a hollow prism shape, and the field winding may be applied as long as it is commonly used.
又界磁巻線の電流は直流がよく、この場合電流の方向が
切り代るようにしてもよく、又、鉄製ウイツクはあらか
じめ磁気を帯びさせておいてもよい。The current in the field winding is preferably direct current, and in this case, the direction of the current may be changed, and the iron wick may be magnetized in advance.
図は本発明のヒートパイプの一例を示す一部裁断の斜視
図である。 １……ヒートパイプ ２……プラスチツクからなるウイツク ３……鉄製のウイツク、４……界磁巻線 ５……蒸発部、６……断熱部 ７……凝縮部The figure is a partially cut perspective view showing an example of the heat pipe of the present invention. 1 ... Heat pipe 2 ... Plastic wick 3 ... Iron wick 4 ... Field winding 5 ... Evaporator, 6 ... Insulator 7 ... Condenser
───────────────────────────────────────────────────── フロントページの続き (72)発明者 望月 正孝 東京都江東区木場１丁目５番１号 藤倉電 線株式会社内 (72)発明者 益子 耕一 東京都江東区木場１丁目５番１号 藤倉電 線株式会社内 (72)発明者 高橋 一泰 東京都江東区木場１丁目５番１号 藤倉電 線株式会社内 (56)参考文献 特開 昭57−12939（ＪＰ，Ａ) 実開 昭54−22264（ＪＰ，Ｕ) ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Masataka Mochizuki 1-5-1, Kiba, Koto-ku, Tokyo Within Fujikura Electric Wire Co., Ltd. (72) Inventor Koichi Masuko 1-1-5, Kiba, Koto-ku, Tokyo Fujikura Electric Wire Co., Ltd. (72) Inventor Kazuyasu Takahashi 1-5-1, Kiba, Koto-ku, Tokyo Fujikura Electric Wire Co., Ltd. (56) Reference JP-A-57-12939 (JP, A) -22264 (JP, U)
Claims (1)
かつ同容器内に作動流体が封入され、その長手方向の一
端部を蒸発部とし、他端部を凝縮部とするヒートパイプ
において、前記ウイックはその大部分をプラスチック材
とし、その一部分を空隙密度を疎にしたり密にすること
が可能である磁性材とし、磁性材のウイックを用いた部
分の容器外表面に磁界発生手段が設けられていることを
特徴とするヒートパイプ。1. A wick is provided on the inner wall of a hollow rod-shaped container,
Moreover, in the heat pipe in which the working fluid is enclosed in the same container, one end in the longitudinal direction thereof is the evaporation part, and the other end is the condensing part, most of the wick is made of plastic material, and a part of it is the void density A heat pipe, characterized in that it is made of a magnetic material that can be sparsely or densely formed, and magnetic field generating means is provided on the outer surface of the container in the portion where the wick of the magnetic material is used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59087857A JPH0638037B2 (en) | 1984-05-02 | 1984-05-02 | heat pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59087857A JPH0638037B2 (en) | 1984-05-02 | 1984-05-02 | heat pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60232497A JPS60232497A (en) | 1985-11-19 |
| JPH0638037B2 true JPH0638037B2 (en) | 1994-05-18 |
Family
ID=13926552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59087857A Expired - Lifetime JPH0638037B2 (en) | 1984-05-02 | 1984-05-02 | heat pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0638037B2 (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6019437B2 (en) * | 1981-02-03 | 1985-05-16 | 株式会社フジクラ | heat pipe |
-
1984
- 1984-05-02 JP JP59087857A patent/JPH0638037B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60232497A (en) | 1985-11-19 |
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