JPH0293270A - Cooling mechanism by using heat pipe - Google Patents

Cooling mechanism by using heat pipe

Info

Publication number
JPH0293270A
JPH0293270A JP24532988A JP24532988A JPH0293270A JP H0293270 A JPH0293270 A JP H0293270A JP 24532988 A JP24532988 A JP 24532988A JP 24532988 A JP24532988 A JP 24532988A JP H0293270 A JPH0293270 A JP H0293270A
Authority
JP
Japan
Prior art keywords
cooling
cooling fins
distance
heat pipe
fins
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
Application number
JP24532988A
Other languages
Japanese (ja)
Inventor
Yasuyoshi Sugawara
菅原 耕悦
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NEC Corp filed Critical NEC Corp
Priority to JP24532988A priority Critical patent/JPH0293270A/en
Publication of JPH0293270A publication Critical patent/JPH0293270A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D15/00Heat-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
    • F28D15/02Heat-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
    • F28D15/0275Arrangements for coupling heat-pipes together or with other structures, e.g. with base blocks; Heat pipe cores

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)

Abstract

PURPOSE:To uniformize cooling efficiency without changing the length of a heater pipe and to reduce the size of a cooling device by a method wherein a heat pipe having a smaller number of cooling fins is disposed on the inflow side of cooling air, and as the distance between the wall surface of an air duct and the cooling fin is decreased, the distance between the cooling fins is decreased. CONSTITUTION:A plurality of cooling fins 3 are provided to the one end, and a plurality of heat pipes 2a, 2b, and 2c to each of which a heat generating body 1 is mounted and which have the same length are arranged to the other end such that the cooling parts thereof are arranged in series in an air duct 4 from the inflow side toward the outflow side of cooling air W. The heat pipe 2a having a smaller number of the cooling fins 3 is disposed on the inflow side of the cooling air, and the heat pipes 2b and 2c having the cooling fins 3 the number of which is increased with the decrease in a distance between the heat pipe and the outflow side of the cooling air are provided. Arrangement of the cooling fins 3 with which each of the heat pipes 2a, 2b, and 2c is provided is such that as the distance between the heat pipe and the wall surface of the air duct is decreased, the distance between the adjoining cooling fins is decreased, and the distance between the adjoining cooling fins is set to a high value at the central part of the air duct.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明はヒートパイプによる冷却機構に関する。[Detailed description of the invention] [Industrial application field] The present invention relates to a cooling mechanism using a heat pipe.

〔従来の技術〕[Conventional technology]

従来、第3図に示すように冷却部に複数個の冷却フィン
3,3・・・を有する同一長さの複数のヒートパイプ2
a、2b、2cを冷却部分を風洞4内に冷却風Wの流入
側から流出側に向かって直列に配置する場合、それぞれ
のヒートパイプ2a * 2b −2cが有する冷却フ
ィン3,3・・・の数は同数であり、しかも隣接する冷
却フィン3,3・・・の間隔も同じに設定されていた。
Conventionally, as shown in FIG. 3, a plurality of heat pipes 2 of the same length each have a plurality of cooling fins 3, 3, . . . in a cooling section.
When the cooling portions of the heat pipes 2a, 2b, and 2c are arranged in series from the inflow side to the outflow side of the cooling wind W in the wind tunnel 4, the cooling fins 3, 3, . . . The number of cooling fins 3, 3, . . . was the same, and the intervals between adjacent cooling fins 3, 3, . . .

また1は発熱体である。Further, 1 is a heating element.

〔発明が解決しようとする課題〕[Problem to be solved by the invention]

上述したように従来冷却部に複数個の冷却フィンを有す
る同一長さのヒートパイプを風洞内に冷却風の流入側か
ら流出側に向かって直列に配置する場合、第5図に示す
ように風洞内の風速は風洞内の中央部が最も大きく、風
洞の壁面に近くなるにしたがって少なくなるため、風洞
中央部に位置するヒートパイプの冷却部の冷却効率が最
も良く、風洞の壁面に近い部分に位置するヒートパイプ
の冷却部はど冷却効率が少なくなるので、冷却効率の均
一化ができないという欠点があった。
As described above, conventionally, when heat pipes of the same length each having a plurality of cooling fins are arranged in a wind tunnel in series from the inflow side to the outflow side of the cooling air in the cooling section, the wind tunnel as shown in FIG. The wind speed within the wind tunnel is highest at the center of the wind tunnel and decreases as it gets closer to the wall of the wind tunnel, so the cooling efficiency of the cooling part of the heat pipe located at the center of the wind tunnel is highest, and Since the cooling efficiency of the cooling portion of the heat pipe is reduced, there is a drawback that the cooling efficiency cannot be made uniform.

本発明の目的は前記課題を解決したヒートバイプによる
冷却機構を提供することにある。
An object of the present invention is to provide a cooling mechanism using a heat vip that solves the above problems.

〔発明の従来技術に対する相違点〕[Differences between the invention and the prior art]

上述した従来のヒートパイプによる冷却機構に対し、本
発明は冷却効率の均一化を図るという相違点を有する。
The present invention differs from the conventional cooling mechanism using a heat pipe described above in that it aims to equalize cooling efficiency.

〔課題を解決するための手段〕[Means to solve the problem]

上記目的を達成するため1本発明は一端に複数個の冷却
フィンを有し、他の一端に発熱体を装着した同一長さの
複数のヒートバイブを冷却部分を風洞内に、冷却風の流
入側から流出側に向かって直列に配置する冷却機構にお
いて、冷却フィン数が少ないヒートパイプを冷却風の流
入側に配し、冷却風の流出側に近くなるにしたがって冷
却フィン数が多いヒートパイプを配し、更に各々のヒー
トパイプが有している冷却フィンの配置は、風洞の壁面
に近くなるにしたがって隣接する冷却フィンの間隔を狭
くし、風洞の中央部では隣接する冷却フィンの間隔が広
く設定したものである。
In order to achieve the above object, the present invention has a plurality of heat vibrators of the same length each having a plurality of cooling fins at one end and a heating element attached to the other end, and the cooling portion is placed in a wind tunnel so that cooling air flows into the wind tunnel. In a cooling mechanism that is arranged in series from the side to the outflow side, heat pipes with fewer cooling fins are placed on the inlet side of the cooling air, and heat pipes with more cooling fins are placed closer to the outflow side of the cooling air. Furthermore, the arrangement of the cooling fins of each heat pipe is such that the distance between adjacent cooling fins becomes narrower as they get closer to the wall of the wind tunnel, and the distance between adjacent cooling fins becomes wider in the center of the wind tunnel. This is the setting.

〔実施例〕〔Example〕

次に本発明について図面を参照して説明する。 Next, the present invention will be explained with reference to the drawings.

第1図は本発明の一実施例を示す図である。FIG. 1 is a diagram showing an embodiment of the present invention.

図において、本発明は一端に複数個の冷却フィン3,3
・・・を有し、他の一端に発熱体1を装着した同一長さ
の複数のヒートパイプ2a、2b、2cの冷却部を風洞
4内に冷却風Wの流入側から流出側に向かって直列に配
置する場合、前記冷却フィン3の数が少ないヒートパイ
プ2aを冷却風の流入側に配し、冷却風の流出側に近く
なるにしたがって冷却フィン3の数が多いヒートパイプ
2b、 2cを配し、更に各々のヒートパイプ2a、2
b、2cが有する冷却フィン3の配置は、風洞の壁面に
近くなるにしたがって隣接する冷却フィンの間隔を狭く
し、風洞の中央部では隣接する冷却フィンの間隔を広く
設定したものである。
In the figure, the present invention includes a plurality of cooling fins 3, 3 at one end.
The cooling parts of a plurality of heat pipes 2a, 2b, 2c of the same length each having a heating element 1 attached to the other end are placed in the wind tunnel 4 from the inflow side of the cooling air W to the outflow side. When arranged in series, the heat pipes 2a having a smaller number of cooling fins 3 are arranged on the inflow side of the cooling air, and the heat pipes 2b and 2c having a larger number of cooling fins 3 are arranged closer to the outflow side of the cooling air. Furthermore, each heat pipe 2a, 2
The arrangement of the cooling fins 3 in FIGS. b and 2c is such that the distance between adjacent cooling fins becomes narrower closer to the wall of the wind tunnel, and the distance between adjacent cooling fins is set wider in the center of the wind tunnel.

第4図は第1図のようなヒートパイプを配した場合の冷
却効率ηと風速νとの関係を示すもので、風速が増加す
るにしたがって冷却効率が増加することを示している。
FIG. 4 shows the relationship between the cooling efficiency η and the wind speed ν when heat pipes as shown in FIG. 1 are arranged, and shows that the cooling efficiency increases as the wind speed increases.

第6図は第1図のようなヒートパイプの配置をした場合
の冷却効率ηと冷却フィン数n、tn21n3との関係
を示すもので、冷却フィン数が増加するにしたがって冷
却効率が増加することを示している。
Figure 6 shows the relationship between the cooling efficiency η and the number of cooling fins n, tn21n3 when the heat pipes are arranged as shown in Figure 1.As the number of cooling fins increases, the cooling efficiency increases. It shows.

尚1本発明は第2図に示すように、第1図に示す配列構
造の下にヒートパイプ2a、2b、2c、2d、2e、
2f、2g、2h、2i、2j、2kを上下に複数段重
ねて配置しても良い。
1. As shown in FIG. 2, the present invention has heat pipes 2a, 2b, 2c, 2d, 2e,
2f, 2g, 2h, 2i, 2j, and 2k may be stacked vertically in multiple stages.

〔発明の効果〕〔Effect of the invention〕

以上説明したように本発明はヒートパイプの長さを変え
ることなく、冷却効率を均一化でき、ヒートバイブ使用
の冷却装置の小形化を図ることができる効果を有する。
As explained above, the present invention has the effect that cooling efficiency can be made uniform without changing the length of the heat pipe, and that a cooling device using a heat vibrator can be made smaller.

【図面の簡単な説明】[Brief explanation of drawings]

第1図は本発明の一実施例を示す斜視図、第2図は第1
図のヒートパイプによる冷却機構を複数段重ねて配置し
た状態を示す斜視図、第3図は従来のヒートパイプによ
る冷却機構を示す斜視図。 第4図は冷却効率ηと風速νとの関係を示す図、第5図
は風洞内の風洞幅Tの各位置での風速賃の分布を示す図
、第6図は冷却効率ηと冷却フィン数との関係を示す図
である。 1・・・発熱体 3・・・冷却フィン W・・・冷却風 2a 、 2b 、 2c・・・ヒートパイプ4・・・
風洞
FIG. 1 is a perspective view showing one embodiment of the present invention, and FIG. 2 is a perspective view showing one embodiment of the present invention.
FIG. 3 is a perspective view showing a state in which the cooling mechanisms using heat pipes shown in the figure are arranged in multiple stages, and FIG. 3 is a perspective view showing a conventional cooling mechanism using heat pipes. Figure 4 is a diagram showing the relationship between cooling efficiency η and wind speed ν, Figure 5 is a diagram showing the distribution of wind speed at each position of the wind tunnel width T in the wind tunnel, and Figure 6 is a diagram showing the relationship between cooling efficiency η and cooling fins. It is a diagram showing the relationship with numbers. 1... Heating element 3... Cooling fin W... Cooling air 2a, 2b, 2c... Heat pipe 4...
wind tunnel

Claims (1)

【特許請求の範囲】[Claims] (1)一端に複数個の冷却フィンを有し、他の一端に発
熱体を装着した同一長さの複数のヒートパイプを冷却部
分を風洞内に、冷却風の流入側から流出側に向かって直
列に配置する冷却機構において、冷却フィン数が少ない
ヒートパイプを冷却風の流入側に配し、冷却風の流出側
に近くなるにしたがって冷却フィン数が多いヒートパイ
プを配し、更に各々のヒートパイプが有している冷却フ
ィンの配置は、風洞の壁面に近くなるにしたがって隣接
する冷却フィンの間隔を狭くし、風洞の中央部では隣接
する冷却フィンの間隔を広く設定したことを特徴とする
ヒートパイプによる冷却機構。
(1) Install multiple heat pipes of the same length, each having multiple cooling fins at one end and a heating element attached to the other end, with the cooling section placed in the wind tunnel, from the inflow side of the cooling air to the outflow side. In a cooling mechanism arranged in series, a heat pipe with a small number of cooling fins is arranged on the inflow side of the cooling air, a heat pipe with a large number of cooling fins is arranged as it approaches the outflow side of the cooling air, and The arrangement of the cooling fins of the pipe is characterized by narrowing the distance between adjacent cooling fins as they get closer to the wall of the wind tunnel, and widening the distance between adjacent cooling fins in the center of the wind tunnel. Cooling mechanism using heat pipes.
JP24532988A 1988-09-29 1988-09-29 Cooling mechanism by using heat pipe Pending JPH0293270A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP24532988A JPH0293270A (en) 1988-09-29 1988-09-29 Cooling mechanism by using heat pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP24532988A JPH0293270A (en) 1988-09-29 1988-09-29 Cooling mechanism by using heat pipe

Publications (1)

Publication Number Publication Date
JPH0293270A true JPH0293270A (en) 1990-04-04

Family

ID=17132043

Family Applications (1)

Application Number Title Priority Date Filing Date
JP24532988A Pending JPH0293270A (en) 1988-09-29 1988-09-29 Cooling mechanism by using heat pipe

Country Status (1)

Country Link
JP (1) JPH0293270A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5832989A (en) * 1996-03-14 1998-11-10 Denso Corporation Cooling apparatus using boiling and condensing refrigerant
US6076596A (en) * 1996-03-14 2000-06-20 Denso Corporation Cooling apparatus for high-temperature medium by boiling and condensing refrigerant
US6119767A (en) * 1996-01-29 2000-09-19 Denso Corporation Cooling apparatus using boiling and condensing refrigerant
US6357517B1 (en) 1994-07-04 2002-03-19 Denso Corporation Cooling apparatus boiling and condensing refrigerant
US6527045B1 (en) 1996-03-14 2003-03-04 Denso Corporation Cooling apparatus boiling and condensing refrigerant
US7721789B2 (en) 1997-10-20 2010-05-25 Fujitsu Limited Heat pipe type cooler

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6357517B1 (en) 1994-07-04 2002-03-19 Denso Corporation Cooling apparatus boiling and condensing refrigerant
US6119767A (en) * 1996-01-29 2000-09-19 Denso Corporation Cooling apparatus using boiling and condensing refrigerant
US6575230B1 (en) 1996-01-29 2003-06-10 Denso Corporation Cooling apparatus using boiling and condensing refrigerant
US5832989A (en) * 1996-03-14 1998-11-10 Denso Corporation Cooling apparatus using boiling and condensing refrigerant
US6076596A (en) * 1996-03-14 2000-06-20 Denso Corporation Cooling apparatus for high-temperature medium by boiling and condensing refrigerant
US6527045B1 (en) 1996-03-14 2003-03-04 Denso Corporation Cooling apparatus boiling and condensing refrigerant
US7004239B2 (en) 1996-03-14 2006-02-28 Denso Corporation Cooling apparatus boiling and condensing refrigerant
US7721789B2 (en) 1997-10-20 2010-05-25 Fujitsu Limited Heat pipe type cooler

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