JPH0339621A - Connection structure of cooler - Google Patents
Connection structure of coolerInfo
- Publication number
- JPH0339621A JPH0339621A JP1175013A JP17501389A JPH0339621A JP H0339621 A JPH0339621 A JP H0339621A JP 1175013 A JP1175013 A JP 1175013A JP 17501389 A JP17501389 A JP 17501389A JP H0339621 A JPH0339621 A JP H0339621A
- Authority
- JP
- Japan
- Prior art keywords
- cooling end
- cooler
- cooling
- fitting member
- heat
- 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
- 238000001816 cooling Methods 0.000 claims abstract description 60
- 229910001285 shape-memory alloy Inorganic materials 0.000 claims abstract description 9
- 238000005452 bending Methods 0.000 claims description 2
- 230000008878 coupling Effects 0.000 abstract description 8
- 238000010168 coupling process Methods 0.000 abstract description 8
- 238000005859 coupling reaction Methods 0.000 abstract description 8
- 229910000990 Ni alloy Inorganic materials 0.000 abstract 1
- 229910001069 Ti alloy Inorganic materials 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 12
- 239000001307 helium Substances 0.000 description 7
- 229910052734 helium Inorganic materials 0.000 description 7
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 7
- 238000009434 installation Methods 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000011295 pitch Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 239000011889 copper foil Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
Landscapes
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
- Radiation Pyrometers (AREA)
- Light Receiving Elements (AREA)
Abstract
Description
【発明の詳細な説明】
〔概 要〕
光電変換装置の冷却器の接続構造に関し、光電変換素子
を冷却する熱伝達部材の下部に設けた熱伝導性結合部と
冷却器の冷却端とが熱抵抗を低減させた状態で確実に結
合されるのを目的とし、
熱伝導性弾性結合部の下部に、下部が開放で該開放端部
に所定のピッチで切り込みを設け、該切り込みを設けた
部分が所定の温度以上で内側に所定の角度で折れ曲がる
形状を記憶させた形状記憶合金より成る嵌合部材を設け
、該嵌合部材の内部に冷却器の冷却端を嵌合させて該冷
却端と熱伝導性弾性結合部とを結合したことで構成する
。[Detailed Description of the Invention] [Summary] Regarding the connection structure of a cooler of a photoelectric conversion device, a thermally conductive joint provided at the lower part of a heat transfer member that cools a photoelectric conversion element and a cooling end of the cooler are connected to each other. In order to ensure a secure connection with reduced resistance, the lower part of the thermally conductive elastic joint part is open and cuts are made at a predetermined pitch at the open end. A fitting member made of a shape memory alloy that memorizes a shape that bends inward at a predetermined angle at a predetermined temperature or higher is provided, and the cooling end of the cooler is fitted into the fitting member to connect with the cooling end. It is constructed by combining a thermally conductive elastic joint part.
本発明は赤外線検知器のヘリウム循環式冷却器に係り、
特に冷却器の冷却端と被冷却物を冷却する熱伝達部材と
の接続構造に関する。The present invention relates to a helium circulation type cooler for an infrared detector,
In particular, the present invention relates to a connection structure between a cooling end of a cooler and a heat transfer member that cools an object to be cooled.
赤外線検知素子や赤外線レーザ素子のような光電変換装
置は、該装置の背景輻射光による雑音の発生を無くし、
Ｓ／Ｎ比を向上させるために通常液体窒素温度程度に冷
却して動作させている。Photoelectric conversion devices such as infrared detection elements and infrared laser elements eliminate noise caused by background radiation of the device,
In order to improve the S/N ratio, it is normally operated while being cooled to about the temperature of liquid nitrogen.
第７図はヘリウム循環式冷却器の模式図で、図示するよ
うに冷却器本体ｌと、内部が真空の冷却容器２とはフラ
ンジ３を用いて気密に結合され、この冷却器本体ｌより
は上方に向かって内部にヘリウムガスが充填された冷却
管４が設置され、この冷却管４の内部には冷却器によっ
て上下に動作するピストン５が設置され、このピストン
の上下運動によって冷却管４の内部のヘリウムガスを断
熱膨張させ、この断熱膨張によって冷却管４の上部の冷
却端６を冷却し、この冷却端６にて該冷却端上に設置さ
れた熱伝導性弾性結合部７を介して熱伝達部材８上に設
置された赤外線検知素子のような被冷却物９を冷却して
いる。FIG. 7 is a schematic diagram of a helium circulation type cooler. As shown in the figure, the cooler body l and the cooling container 2, which has a vacuum inside, are airtightly connected using a flange 3. A cooling pipe 4 filled with helium gas is installed upward, and a piston 5 that moves up and down by a cooler is installed inside this cooling pipe 4. The up and down movement of this piston causes the cooling pipe 4 to move upward. The internal helium gas is adiabatically expanded, and this adiabatic expansion cools the upper cooling end 6 of the cooling pipe 4. An object to be cooled 9 such as an infrared detection element installed on the heat transfer member 8 is cooled.
この従来のヘリウム循環式冷却器を更に詳細に説明する
と、第６図に示すように上記熱伝達部材８は、バネ材１
２を用いて前記冷却端６上に押圧され、前記冷却端６上
に設置された熱伝導性の良い銅箔１１にて熱伝達部材８
を冷却し、この冷却によって該熱伝達部材８上の検知素
子のような被冷却物を冷却する方法を採っていた。To explain this conventional helium circulation type cooler in more detail, as shown in FIG.
The heat transfer member 8 is made of a copper foil 11 with good thermal conductivity, which is pressed onto the cooling end 6 using a copper foil 11 and placed on the cooling end 6.
A method has been adopted in which a cooling object such as a sensing element on the heat transfer member 8 is cooled by this cooling.
〔発明が解決しようとする課題〕
然し、熱伝達部材８と冷却端６の間の熱抵抗は、冷却端
６への熱伝達部材８の押しつける力に依存し、熱抵抗を
低減させるためには、前記したバネ材の圧力を増加させ
て熱伝達部材８を冷却端６に強く押しつけねば放らない
。このようにすると、冷却端６は肉厚が厚くて外径が大
であるが、冷却端の根元６Ａの冷却管は外部からの熱の
流入を防ぐために肉厚の薄い冷却管を用いているので、
上記のようにバネ材の圧力を増加させて熱伝達部材の冷
却端に対する押圧力を大にして熱抵抗を低減させようと
すると冷却管が破損する問題がある。[Problem to be Solved by the Invention] However, the thermal resistance between the heat transfer member 8 and the cooling end 6 depends on the force with which the heat transfer member 8 is pressed against the cooling end 6, and in order to reduce the thermal resistance, , the heat transfer member 8 must be strongly pressed against the cooling end 6 by increasing the pressure of the spring material described above to prevent it from being released. In this way, the cooling end 6 has a thick wall and a large outer diameter, but the cooling pipe at the root 6A of the cooling end is a thin cooling pipe in order to prevent heat from flowing in from the outside. So,
If an attempt is made to reduce the thermal resistance by increasing the pressure of the spring material to increase the pressing force against the cooling end of the heat transfer member as described above, there is a problem that the cooling pipe may be damaged.
本発明は上記した問題点を解決し、冷却管に加わる力が
小さくて済み、上記熱伝達部材と冷却端の間の熱抵抗を
小さくした状態で結合できる冷却器の接続構造の提供を
目的とする。The present invention solves the above-mentioned problems, and aims to provide a connection structure for a cooler that requires less force to be applied to the cooling pipe and that can connect the heat transfer member and the cooling end with reduced thermal resistance. do.
上記目的を遠戚するための本発明の冷却器の接続構造は
第１図の原理図に示すように熱伝導性弾性結合部７の下
部に、下部が開放で該開放端部２１に所定のピッチで切
り込みを設け、該切り込みを設けた部分が所定の温度以
上で内側に所定の角度で折れ曲がる形状を記憶させた形
状記憶合金より成る筒状の嵌合部材２３を設け、該嵌合
部材２３の内部に冷却器の冷却端６を嵌合させて該冷却
端６と熱伝導性弾性結合部７とを結合したことで構成す
る。The connection structure of the cooler of the present invention, which is related to the above object, is as shown in the principle diagram of FIG. A cylindrical fitting member 23 is provided, which is made of a shape memory alloy in which cuts are formed at pitches, and the part where the cuts are provided memorizes a shape that bends inward at a predetermined angle at a predetermined temperature or higher. The cooling end 6 of the cooler is fitted into the inside of the cooling end 6, and the cooling end 6 and the thermally conductive elastic coupling portion 7 are connected.
本発明に於いては、第１図の原理図および第４図の嵌合
部材の取りつけ図に於けるように、冷却端６と熱伝導性
弾性結合部７とを嵌合させる円筒状の嵌合部材２３の下
部を開放にして、所定の寸法で切り込み２２を設けてい
る。この円筒状の嵌合部材２３を形状記憶合金で形成す
ることで、臨界温度以下の温度では冷却端６が挿入でき
るように下方に向かって真っ直ぐに、或いは外側を向い
て開くような構造を採っており、臨界温度以上では第３
図の嵌合部材の結合時の説明図に示すように、内部の方
向に９０度以上の角度で折れ曲がる構造を熱処理によっ
て形状記憶合金に記憶させている。この記憶した形状に
基づいて臨界温度以上の温度に於いては、内側に９０度
以上折れ曲がる形状に回復し、冷却端６を上側と下側よ
り挟み込む構造に成る。In the present invention, as shown in the principle diagram in FIG. 1 and the fitting member installation diagram in FIG. The lower part of the mating member 23 is open, and a notch 22 is provided with a predetermined dimension. By forming this cylindrical fitting member 23 from a shape memory alloy, it has a structure that opens straight downward or outward so that the cooling end 6 can be inserted at temperatures below the critical temperature. Above the critical temperature, the third
As shown in the explanatory diagram when the fitting members are connected in the figure, the structure of bending inward at an angle of 90 degrees or more is memorized in the shape memory alloy by heat treatment. Based on this memorized shape, when the temperature is higher than the critical temperature, the shape is restored to be bent inward by 90 degrees or more, forming a structure in which the cooling end 6 is sandwiched between the upper and lower sides.
従って冷却端６を嵌合部材２３に挿入し、臨界温度以上
に嵌合部材２３を加熱すると、円筒状の嵌合部材２３の
先端部が、記憶させた形状である内側に９０度折れ曲が
った元の形状に復帰し、冷却端６を上下より強く締めつ
けるように成り、回復した形状は、その後の冷却によっ
ても変化することは無い。これによって嵌合部材２３と
冷却端６上面の接触圧力が大となり、嵌合部材と冷却端
との熱抵抗が低減する。Therefore, when the cooling end 6 is inserted into the fitting member 23 and the fitting member 23 is heated above the critical temperature, the tip of the cylindrical fitting member 23 bends 90 degrees inward, which is the memorized shape. The shape is restored, and the cooling end 6 is tightened more strongly than above and below, and the restored shape does not change even with subsequent cooling. This increases the contact pressure between the fitting member 23 and the upper surface of the cooling end 6, and reduces the thermal resistance between the fitting member and the cooling end.
以下、図面を用いて本発明の一実施例につき詳細に説明
する。Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings.
第２図は本発明の嵌合部材に嵌合させる冷却端の説明図
で、該冷却端は熱伝導の良好な金属パイプで形成され、
該冷却端の上部６Ａは肉厚が厚く形成されてその断面積
を大きくして形成され、その冷却端の根元６Ｂは上部よ
り断面積を小さくし、かつ肉厚を薄＜シて形成されてい
る。FIG. 2 is an explanatory diagram of a cooling end to be fitted into the fitting member of the present invention, the cooling end being formed of a metal pipe with good heat conduction,
The upper part 6A of the cooling end is formed with a thick wall and a large cross-sectional area, and the root 6B of the cooling end is formed with a smaller cross-sectional area and a thinner wall than the upper part. There is.
第３図は上記熱伝導性弾性結合部の下部に設置され、前
記した冷却端６に嵌合する嵌合部材の結合時の説明図、
第４図は変形させた該嵌合部材の取りつけ図、第５図は
臨界温度以上にして形状回復させた嵌合部材の結合時の
取りつけ図である。FIG. 3 is an explanatory diagram of a fitting member installed at the lower part of the thermally conductive elastic coupling portion and fitting into the cooling end 6 when coupled;
FIG. 4 is an installation view of the deformed fitting member, and FIG. 5 is an installation view of the fitting member, which has been heated to a temperature higher than the critical temperature and has recovered its shape, when it is connected.
第４図に示すように、本発明の嵌合部材２３は熱伝達台
の下部に設置された熱伝導性弾性結合部７に上面が結合
され、下部が開放で該開放端部に所定のピッチで外側に
向かって開く状態で、切り込み２２が設けられたニッケ
ル（Ｎｉ）−チタン（Ｔｉ）合金等より戊る形状記憶合
金製の円筒状部材で、この切り込みを設けられた部分は
、臨界温度以上の温度で第３図に示すように内部の方向
に向かって直角以上の角度で折れ曲がる形状を熱処理に
よって予め記憶させておく。As shown in FIG. 4, the fitting member 23 of the present invention has an upper surface connected to a thermally conductive elastic coupling part 7 installed at the lower part of the heat transfer table, an open lower part, and a predetermined pitch between the open ends. It is a cylindrical member made of a shape memory alloy made of a nickel (Ni)-titanium (Ti) alloy, etc., with a notch 22 provided in the state of opening outward at the point where the notch is provided. At the above temperature, as shown in FIG. 3, a shape that is bent toward the inside at an angle greater than or equal to a right angle is memorized in advance by heat treatment.
この嵌合部材２３の内部に冷却端６を挿入した後、この
嵌合部材２３をオープン等を用いて臨界温度以上に加熱
することによって、形状記憶合金で形成された嵌合部材
の切れ込みを設けた開放端部が記憶させた形状に従って
第３図、および第５図に示すように内部の方向に直角以
上の角度で折れ曲がり、該嵌合部材２３が冷却端６を上
下の方向より確実に掴むようになる。そのため、従来の
ように冷却端の上部側よりのみ押圧することなく、冷却
端に均一な力が掛かって冷却端と熱伝導性弾性部材とが
結合されるようになるため、冷却端を構成する金属パイ
プが破損することがなくなり、熱抵抗を低減させた状態
で被冷却物が効率良く冷却される。After inserting the cooling end 6 into the interior of the fitting member 23, the fitting member 23 is heated to a critical temperature or higher using an opener or the like, thereby forming a notch in the fitting member made of a shape memory alloy. According to the memorized shape, the open end portion is bent inward at an angle greater than right angles as shown in FIGS. 3 and 5, and the fitting member 23 securely grips the cooling end 6 from above and below. It becomes like this. Therefore, instead of pressing only from the upper side of the cooling end as in the past, a uniform force is applied to the cooling end and the cooling end and the thermally conductive elastic member are connected, thereby forming the cooling end. The metal pipe will not be damaged, and the object to be cooled will be efficiently cooled with reduced thermal resistance.
以上の説明から明らかなように本発明によれば、ヘリウ
ム循環式冷却器の冷却端と、赤外線検知素子のような被
冷却物を冷却する熱伝達部材より延びる熱伝導性弾性結
合部との間の熱抵抗が低減されるので、被冷却物を速や
かに効率良く冷却できる効果がある。As is clear from the above description, according to the present invention, between the cooling end of the helium circulation type cooler and the thermally conductive elastic coupling portion extending from the heat transfer member that cools the object to be cooled, such as an infrared sensing element. Since the thermal resistance of the cooling device is reduced, the object to be cooled can be cooled quickly and efficiently.
第１図は本発明の冷却器の接続構造の原理図、第２図は
冷却端の構造を示す説明図、
第３図は本発明の冷却器の嵌合部材の結合時の説明図、
第４図は本発明の冷却器の嵌合部材の取り付は図、
第５図は本発明の冷却器の嵌合部材の結合時の取り付は
図、
第６図は従来の冷却器の接続構造の説明図、第７図はヘ
リウム循環式冷却器の模式図である。
図において、
６は冷却端、６Ａは冷却端上部、６Ｂは冷却端の根元、
７は熱伝導性弾性結合部、８は熱伝達部材、９は被冷却
物、２１は開放端部、２２は切り込み、２３は嵌合部材
を示す。
第
図
ンを去ｐ１埼う＾精造ｅ ＴｒＴｊｔ 日肩図第２図
第
３
図
第
図
第
図
室ｌε二季ミ１１ン＜３丑Ｐ」宕ζイ々ｊ署ミ」ｉｊ竺
Ｉ青遣ｄワ１１Ｑジ日すｉｌｌ≧１第６図
ヘリウｌρ宵環ｔ（ン＞’ｆｙ３誤１０手臭＜ｉり第７
図Fig. 1 is a principle diagram of the connection structure of the cooler of the present invention, Fig. 2 is an explanatory diagram showing the structure of the cooling end, Fig. 3 is an explanatory diagram of the coupling of the fitting member of the cooler of the present invention, Figure 4 shows the installation of the fitting member of the cooler of the present invention, Figure 5 shows the attachment of the fitting member of the cooler of the invention when coupled, and Figure 6 shows the connection of the conventional cooler. An explanatory diagram of the structure, FIG. 7 is a schematic diagram of a helium circulation type cooler. In the figure, 6 is the cooling end, 6A is the upper part of the cooling end, 6B is the root of the cooling end,
7 is a thermally conductive elastic joint, 8 is a heat transfer member, 9 is an object to be cooled, 21 is an open end, 22 is a notch, and 23 is a fitting member. Leaving Fig. N p1 Sai U ^ Seizo e TrTjt Sun Shoulder Map Fig. 2 Fig. 3 dwa 11Q Jisill≧1Fig.
figure
Claims (1)
放端部（２１）に所定のピッチで切り込みを（２２）を
設け、該切り込みを設けた部分が所定の温度以上で内側
に所定の角度で折れ曲がる形状を記憶させた形状記憶合
金より成る筒状の嵌合部材（２３）を設け、該嵌合部材
の内部に冷却器の冷却端（６）を嵌合させて該冷却端（
６）と熱伝導性弾性結合部（７）とを結合したことを特
徴とする冷却器の接続構造。Cuts (22) are provided at a predetermined pitch in the open end (21) at the lower part of the thermally conductive elastic joint (7), and the part where the cuts are provided is heated to the inside at a predetermined temperature or higher. A cylindrical fitting member (23) made of a shape memory alloy that memorizes the shape of bending at a predetermined angle is provided, and the cooling end (6) of the cooler is fitted into the fitting member to perform the cooling. end(
6) and a thermally conductive elastic joint portion (7) are combined.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1175013A JPH0339621A (en) | 1989-07-05 | 1989-07-05 | Connection structure of cooler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1175013A JPH0339621A (en) | 1989-07-05 | 1989-07-05 | Connection structure of cooler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0339621A true JPH0339621A (en) | 1991-02-20 |
Family
ID=15988691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1175013A Pending JPH0339621A (en) | 1989-07-05 | 1989-07-05 | Connection structure of cooler |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0339621A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7484436B2 (en) | 2004-04-15 | 2009-02-03 | Harmonic Drive Systems, Inc. | Wave gear device |
-
1989
- 1989-07-05 JP JP1175013A patent/JPH0339621A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7484436B2 (en) | 2004-04-15 | 2009-02-03 | Harmonic Drive Systems, Inc. | Wave gear device |
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