JPH03288552A - Heat flow switch and thermostat bath using same - Google Patents
Heat flow switch and thermostat bath using sameInfo
- Publication number
- JPH03288552A JPH03288552A JP2091240A JP9124090A JPH03288552A JP H03288552 A JPH03288552 A JP H03288552A JP 2091240 A JP2091240 A JP 2091240A JP 9124090 A JP9124090 A JP 9124090A JP H03288552 A JPH03288552 A JP H03288552A
- Authority
- JP
- Japan
- Prior art keywords
- block
- gap
- blocks
- peltier element
- fluid
- 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
- 239000012530 fluid Substances 0.000 claims abstract description 11
- 238000010438 heat treatment Methods 0.000 claims abstract description 5
- 230000017525 heat dissipation Effects 0.000 claims 1
- 229920002545 silicone oil Polymers 0.000 abstract description 9
- 238000007599 discharging Methods 0.000 abstract description 4
- 238000005338 heat storage Methods 0.000 description 11
- 238000001816 cooling Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000002470 thermal conductor Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Devices For Use In Laboratory Experiments (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は熱の授受を行なおうとする２つのブロックの間
に熱伝導のよい流体を介在させて両ブロック間に熱の伝
達をなし、該流体を排出する事により熱伝達の遮断をな
すいわゆる熱流スイッチに係る。[Detailed Description of the Invention] [Industrial Application Field] The present invention involves interposing a fluid with good thermal conductivity between two blocks that are intended to exchange heat, thereby transferring heat between the two blocks. This invention relates to a so-called heat flow switch that blocks heat transfer by discharging the fluid.
［従来の型の説明］
従来離間している２つのブロックの間に熱の伝達を行わ
せようとする場合、ブロックζ密着せしめ、熱伝導によ
り高温ブロックから低温ブロックへと熱の伝達を達成し
、又この熱伝達を遮断するには両ブロックを物理的に離
間させる事により達成していた。[Explanation of conventional type] When trying to transfer heat between two blocks that are conventionally separated, the blocks ζ are brought into close contact and heat transfer is achieved from the high temperature block to the low temperature block by heat conduction. Also, this heat transfer was achieved by physically separating both blocks.
然し、この従来の熱伝達及び遮断機構に於いては、両ブ
ロックの熱伝達をなす両面は伝達をよくするため協精度
よく平坦に加工せ′ねばならず、且つ両ブロックの密着
移動には回転を伴う移動機構を必要とし、特にブＣ］−
／りの重量が大きい場合には移動機構の構造及び費用が
膨大になる欠点があった。However, in this conventional heat transfer and cutoff mechanism, both surfaces of both blocks that perform heat transfer must be machined to be flat with high precision in order to improve heat transfer, and rotation is required to move both blocks in close contact. It requires a moving mechanism with
If the weight of the moving mechanism is large, the structure and cost of the moving mechanism become enormous.
［発明により解決しようとする課題］
そこで本発明に於いては、熱の授受を行う２つの面が僅
かにｆｉ間するように両ブロックを固定し、これら２つ
面間の間隙に熱伝導の良好な流体を介在せしめて熱伝達
をなし、この流体を排除することにより熱伝達を遮断せ
しめ、これにより上記の従来の欠点を解決しようとする
ものである。[Problems to be solved by the invention] Therefore, in the present invention, both blocks are fixed so that the two surfaces that transfer heat are slightly spaced apart from each other by a distance fi, and the gap between these two surfaces is provided with heat conduction. The present invention attempts to solve the above-mentioned drawbacks of the prior art by interposing a good fluid to effect heat transfer and by excluding this fluid to interrupt the heat transfer.
［課題を解決する手段］
本発明によれば、加熱側ブロックと受熱側ブロックとの
間隙を液密機構にし、この液密間隙部に熱伝導率のよい
流体を充填したり、排出したりするポンプを連結する。[Means for Solving the Problems] According to the present invention, the gap between the heating side block and the heat receiving side block is made into a liquid-tight mechanism, and a fluid with good thermal conductivity is filled into and discharged from this liquid-tight gap. Connect the pump.
実際には、両ブロックの対向面を同形状・寸法にして、
両ブロックを僅かな間隙をもって固定し、この間隙を覆
うように１本の弾性バンドで両ブロックを共に巻き液密
機構にする０次に弾性バンドにあけた孔よりチューブを
挿し込み、このチューブの外端をシリンジに接続する。In reality, the opposing surfaces of both blocks are made to have the same shape and dimensions,
Fix both blocks with a small gap between them, wrap both blocks together with an elastic band to cover this gap, and create a liquid-tight mechanism.Next, insert a tube through the hole drilled in the elastic band, and Connect the outer end to the syringe.
シリンジ内にはシリコンオイルのような熱伝導率の高く
、高温でもガス発生のない液体を入れる。Fill the syringe with a liquid such as silicone oil that has high thermal conductivity and does not generate gas even at high temperatures.
［実施例］
本発明による熱流スイッチをペルチェ素子を利用した恒
温槽の加熱冷却機構に適用した例を斜視図で示す。[Example] A perspective view shows an example in which the heat flow switch according to the present invention is applied to a heating and cooling mechanism of a constant temperature bath using a Peltier element.
恒温化されるべき試料はガラスチューブｌ内に入ってい
る液体状のものである。The sample to be kept at constant temperature is a liquid contained in a glass tube l.
２はガラスチューブ１を多数、上面に穿った多数の孔に
嵌入し、熱接授よく保持する熱良導体の保持ブロックで
、下面から蓄熱ブロック５よりの熱を接授する。Reference numeral 2 denotes a holding block made of a good thermal conductor, which holds a large number of glass tubes 1 by fitting them into a large number of holes bored in the upper surface and retaining them with good thermal welding, and heat from the heat storage block 5 is welded from the lower surface.
このチューブ保持ブロック２の下面は蓄熱ブロック５の
上面と約５■程度離して固定する。The lower surface of the tube holding block 2 is fixed at a distance of about 5 cm from the upper surface of the heat storage block 5.
蓄熱ブロック５は銅、アルミニウム等の材質よりなる可
及的熱容量の大きいブロックである。The heat storage block 5 is made of a material such as copper or aluminum and has a large possible heat capacity.
この下面はペルチェ素子４とよく密着させて該ペルチェ
素子４との熱接授をよくしである。This lower surface is brought into close contact with the Peltier element 4 to facilitate thermal bonding with the Peltier element 4.
該ペルチェ素子４の下面にはフィン付放熱器３が取り付
けてあり、蓄熱ブロック５と放熱器３との間にペルチェ
素子４が介在してこれら３つの部材は密着し積層されて
１体に構成せられる。A radiator 3 with fins is attached to the lower surface of the Peltier element 4, and the Peltier element 4 is interposed between the heat storage block 5 and the radiator 3, and these three members are laminated in close contact to form one body. be given
試料チューブ保持ブロック２の下縁と蓄熱ブロック５の
上縁との間にまたがり弾性バンド６を密着して巻き付け
、この弾性バンドに孔を開けここにシリンジ７を接続す
る。An elastic band 6 is tightly wound between the lower edge of the sample tube holding block 2 and the upper edge of the heat storage block 5, and a hole is made in this elastic band to connect a syringe 7 thereto.
弾性バンド６により密閉された上下２つのブロック間の
空隙にはシリコンオイル８を充填する。空隙内へのシリ
コンオイル８の充填、排出にはシリンジ７を操作（ポン
プ操作）することで達成される。The gap between the two upper and lower blocks sealed by the elastic band 6 is filled with silicone oil 8. Filling and discharging the silicone oil 8 into the cavity is achieved by operating the syringe 7 (pumping).
尚保持ブロック２の厚み方向の孔９はエア抜き孔である
。Note that the hole 9 in the thickness direction of the holding block 2 is an air vent hole.
この様にして保持ブロック２と蓄熱ブロック５とはシリ
コンオイルの充填により熱伝達がなされて同じ温度に維
持せられ、排出により熱絶縁が得られる。In this way, the holding block 2 and the heat storage block 5 are maintained at the same temperature through heat transfer due to the filling of the silicone oil, and thermal insulation is obtained by draining the silicone oil.
試料を８０℃以上に恒温加熱する場合は公知の様に電気
ヒータ（図示せず）のみにより試料ブロックを加熱する
が、ここで特に便利なことは本実施例の場合は保持ブロ
ック２と蓄熱ブロック５とはシリコンオイル排出により
熱絶縁されるので保持ブロックの高温が、８０℃以上で
破壊されると云うペルチェ素子４へは伝わらないように
出来ることである。When heating a sample at a constant temperature of 80°C or higher, the sample block is heated only by an electric heater (not shown) as is well known, but what is especially convenient here is that in the case of this example, the holding block 2 and the heat storage block are used. 5 is that the high temperature of the holding block can be prevented from being transmitted to the Peltier element 4, which is said to be destroyed at 80° C. or higher, since it is thermally insulated by discharging silicone oil.
冷却時はシリンジ７によりシリコンオイルを空隙より排
出しておいて蓄熱ブロック５の温度を予め設定温度より
更に下げておき、保持ブロック２の蓄熱ブロックへの密
着頭初は急温度勾配を辿り其の後は設定温度に向かって
制御するようにして急速冷却がなし得る。During cooling, silicone oil is discharged from the gap using the syringe 7, and the temperature of the heat storage block 5 is lowered further than the set temperature in advance. After that, rapid cooling can be achieved by controlling the temperature toward the set temperature.
［効果］
本発明によれば、蓄熱ブロック５と保持ブロック２との
ような２つのブロック間の授受を両ブロックの移動、密
着手段によらず僅かな量の流体の移動のみによって達成
し得るので、可動部を実質上必要とせず、両ブロックの
面の精密仕上げも必要なく、且つブロックりの面域全体
にわたり熱伝達が均一である。[Effects] According to the present invention, transfer between two blocks such as the heat storage block 5 and the holding block 2 can be achieved by only moving a small amount of fluid, regardless of the movement or contact means of both blocks. , substantially no moving parts are required, no precision finishing of the surfaces of both blocks is required, and heat transfer is uniform over the entire surface area of the blocks.
特に本発明を本実施例の様な恒温槽に適用した場合には
重量のある蓄熱ブロックと放熱器とを上下する機構も不
要であるし、高温に弱いペルチェ素子を熱絶縁しておい
て高温が取り扱えるという利便もあり、その工業的債値
が大きい。In particular, when the present invention is applied to a constant temperature oven like the one in this embodiment, there is no need for a mechanism to move the heavy heat storage block and heat radiator up and down, and the Peltier element, which is sensitive to high temperatures, can be thermally insulated. There is also the convenience of being able to handle industrial debt, and its industrial bond value is high.
図はペルチェ素子を用いた恒温槽に本発明を適用した場
合の斜視図である。
試料チューブ
試料チューブ保持ブロック
ペルチェ素子放熱器
ペルチェ素子
蓄熱ブロック
弾性バンド
シリンジ
シリコンオイル
エア抜き孔The figure is a perspective view when the present invention is applied to a constant temperature bath using a Peltier element. Sample tube Sample tube holding block Peltier element heat sink Peltier element heat storage block Elastic band Syringe Silicone oil Air vent hole
Claims (2)
、この液密間隙に熱伝導の良い流体を充填したり除去し
たりするポンプを連結した事を特徴とする熱流スイッチ
。(1) A heat flow switch characterized in that a gap between a heating block and a heat receiving block is made liquid-tight, and a pump is connected to the liquid-tight gap to fill or remove a fluid with good heat conduction.
槽に於いて、ペルチエ素子を放熱ブロックと１体化した
ペルチェ素子ブロックと 電気ヒータを組込んだ試料を保持する保持 ブロックとを離間配置し、この間隙を液密にし、この液
密間隙に熱伝導の良い流体を充填したり除去したりする
ポンプを連結した事を特徴とする恒温槽。(2) In a constant temperature bath that cools and heats samples using a Peltier element, the Peltier element block that integrates the Peltier element with a heat dissipation block and the holding block that holds the sample that incorporates an electric heater are spaced apart. A constant temperature bath is characterized in that this gap is made liquid-tight and a pump is connected to the liquid-tight gap to fill or remove a fluid with good thermal conductivity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2091240A JPH03288552A (en) | 1990-04-05 | 1990-04-05 | Heat flow switch and thermostat bath using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2091240A JPH03288552A (en) | 1990-04-05 | 1990-04-05 | Heat flow switch and thermostat bath using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03288552A true JPH03288552A (en) | 1991-12-18 |
Family
ID=14020899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2091240A Pending JPH03288552A (en) | 1990-04-05 | 1990-04-05 | Heat flow switch and thermostat bath using same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03288552A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120171678A1 (en) * | 2006-05-17 | 2012-07-05 | California Institute Of Technology | Apparatus for thermal cycling |
-
1990
- 1990-04-05 JP JP2091240A patent/JPH03288552A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120171678A1 (en) * | 2006-05-17 | 2012-07-05 | California Institute Of Technology | Apparatus for thermal cycling |
| US9316586B2 (en) * | 2006-05-17 | 2016-04-19 | California Institute Of Technology | Apparatus for thermal cycling |
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