JPH0241352Y2 - - Google Patents
Info
- Publication number
- JPH0241352Y2 JPH0241352Y2 JP1985021793U JP2179385U JPH0241352Y2 JP H0241352 Y2 JPH0241352 Y2 JP H0241352Y2 JP 1985021793 U JP1985021793 U JP 1985021793U JP 2179385 U JP2179385 U JP 2179385U JP H0241352 Y2 JPH0241352 Y2 JP H0241352Y2
- Authority
- JP
- Japan
- Prior art keywords
- coil spring
- actuator
- fitted
- outer cylinder
- piston plate
- 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
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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/25—Greenhouse technology, e.g. cooling systems therefor
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/14—Measures for saving energy, e.g. in green houses
Landscapes
- Greenhouses (AREA)
Description
【考案の詳細な説明】
本考案は、形状記憶効果を有する合金即ち形状
記憶合金で製作したコイルスプリングを使用した
アクチユエータに関するものである。[Detailed Description of the Invention] The present invention relates to an actuator using a coil spring made of an alloy having a shape memory effect, that is, a shape memory alloy.
近年、設定した温度に加熱乃至冷却されると、
設定したときの温度に於ける形状に復元する所謂
形状記憶効果を有する合金が種々開発され、各種
産業分野で利用されている。その一例として形状
記憶合金で製作したコイルスプリングを温室の窓
に取付け、室外温度が設定温度以上になると窓を
開放して室内に外気を取り入れ、設定温度以下に
なると窓を閉鎖して室内の熱の放散を防ぐように
した温室の窓の自動開閉装置があるが、これは窓
開閉用のアクチユエータとして外気温度に即応す
るようにコイルスプリングを露出した状態のまま
使用するものであつたため、水蒸気、酸性雨水等
により酸化して腐食し易く、耐久使用性に劣ると
ともに、コイルスプリングが熱媒体と直接接触す
るため、作動するまでに猶予時間ぎほしいような
場合でも調節不能であり、窓開閉用以外の機器の
アクチユエータとしては実施困難であつた。 In recent years, when heated or cooled to a set temperature,
Various alloys having a so-called shape memory effect, which restores the shape at a set temperature, have been developed and are used in various industrial fields. For example, a coil spring made of shape memory alloy is attached to the window of a greenhouse. When the outdoor temperature exceeds a set temperature, the window is opened to let outside air into the room, and when the temperature falls below the set temperature, the window is closed and the indoor temperature is heated. There is an automatic greenhouse window opening/closing device designed to prevent the release of water vapor, but this device uses an exposed coil spring as the actuator for opening and closing the window so that it responds immediately to the outside temperature. It is easily oxidized and corroded by acidic rainwater, etc., and has poor durability.In addition, since the coil spring comes into direct contact with the heat medium, it cannot be adjusted even when a grace period is required before it activates, and it is not used for opening or closing windows. This was difficult to implement as an actuator for such equipment.
然るに、本考案は、上記コイルスプリングを二
重構造の容器内に嵌装し、熱媒体と直接接触する
ことがないようにしてコイルスプリングの腐食を
防止するとともに、制御並びに作動するまで猶予
時間の調節を容易ならしめたアクチユエータを提
供するもので、以下図示する実施例について本考
案に係るアクチユエータの具体的構成を説明す
る。 However, the present invention prevents corrosion of the coil spring by fitting the coil spring in a double-structured container so that it does not come into direct contact with the heat medium, and also reduces the grace period until control and activation. The purpose is to provide an actuator that is easy to adjust, and the specific structure of the actuator according to the present invention will be described below with reference to the illustrated embodiments.
即ち、外筒１内に間隙Ｓを設けて嵌装した内筒
２内に、設定した温度で復元伸長する形状記憶合
金で製作したコイルスプリング３を嵌装するとと
もに、同コイルスプリング３の復元力による付勢
されるロツド４1と一体のピストン板４を摺動自
在に嵌装し、前記外筒１には空気、液体等の熱媒
体の流入口１1と流出口１2を設けて成る構造を特
徴とするものである。 That is, a coil spring 3 made of a shape memory alloy that recovers and expands at a set temperature is fitted into an inner cylinder 2 fitted with a gap S in an outer cylinder 1, and the restoring force of the coil spring 3 is A piston plate 4 integral with a rod 4 1 which is biased by the piston plate 4 is slidably fitted, and the outer cylinder 1 is provided with an inlet 1 1 and an outlet 1 2 for a heat medium such as air or liquid. It is characterized by its structure.
尚、図中、５は内筒２の下部蓋体、６は同上部
蓋体で、ロツド４1が摺動できるように中央部に
ガイド孔６1が穿つてあり、内筒内に液体を充填
する場合は気密シールを施こしておく。７は現在
の形状記憶合金で製作したコイルスプリング３の
特性で収縮時には伸長時程の復元力がないため、
これを補償するために前記コイルスプリング３に
対向するように嵌装した通常のコイルスプリング
である。 In the figure, 5 is the lower lid of the inner cylinder 2, and 6 is the upper lid. A guide hole 61 is bored in the center so that the rod 41 can slide, and a guide hole 61 is bored in the center to allow liquid to enter the inner cylinder. When filling, apply an airtight seal. 7 is a characteristic of the current coil spring 3 made of shape memory alloy, as it does not have the same restoring force when contracted as when it is extended.
In order to compensate for this, a normal coil spring is fitted so as to face the coil spring 3.
尚、コイルスプリング３が収縮時にも充分な復
元力を有するものであれば、下端を蓋体５に、上
端をピストン板４にそれぞれ固着するだけでよく
補償用のコイルスプリングは不用である。 If the coil spring 3 has a sufficient restoring force even when contracted, it is sufficient to fix the lower end to the lid 5 and the upper end to the piston plate 4, and no compensating coil spring is required.
次に、本考案の上記構成に従い、図示する実施
例について本案アクチユエータの具体的用法並び
に作用、効果を説明する。 Next, in accordance with the above structure of the present invention, the specific usage, operation, and effects of the actuator of the present invention will be explained with respect to the illustrated embodiment.
即ち、第３図のフローチヤートは、圧縮機ａに
より断熱圧縮された冷媒が凝縮器ｂによつて放熱
液化され、膨張弁ｃを通り、蒸発器ｄで気化して
元の圧縮機ａに戻る所謂冷凍サイクルを表わすも
ので、この冷凍機を、例えば冷却空気のカーテン
で要冷蔵の食料品を保存展示する所謂冷蔵オープ
ンシヨーケースの冷却装置として使用した場合で
あつて、吹出空気の吹出量を最大、最小の二段階
に調節したい場合、空気の取入口側にダンパを設
け、このダンパの開閉角度を変えればよいのであ
るが、このダンパの駆動装置として本案アクチユ
エータを使用する場合について説明する。 That is, in the flowchart of FIG. 3, the refrigerant is adiabatically compressed by the compressor a, is liquefied with heat dissipation by the condenser b, passes through the expansion valve c, is vaporized by the evaporator d, and returns to the original compressor a. This represents a so-called refrigeration cycle, and when this refrigerator is used as a cooling device for a so-called refrigerated open show case in which foods that require refrigeration are stored and displayed using a curtain of cooling air, the amount of air blown is controlled. If you want to adjust in two stages, maximum and minimum, you can install a damper on the air intake side and change the opening/closing angle of this damper, but we will explain the case where the actuator of the present invention is used as a drive device for this damper.
即ち、Cu系の形状記憶合金から成る線材をコ
イル状に巻回してコイルスプリング３を製作し、
39℃±２℃のとき最大限に伸長し、30℃±１℃の
とき最小限に収縮するように温度設定を行う。こ
のコイルスプリング３を外筒２内に嵌装し、コイ
ルスプリング３が前記設定温度範囲になつたとき
伸長乃至収縮してピストン板４を摺動即ちロツド
４1を突出乃至後退させるようにするが、収縮時
には伸長時程の復元力を有さないため、これを補
償するためにピストン板４を挾んで通常のコイル
スプリング７をコイルスプリング３と対向させる
ように嵌装しておく。このコイルスプリング７の
復元力Ｐは次式によつて決定する。 That is, the coil spring 3 is manufactured by winding a wire made of a Cu-based shape memory alloy into a coil.
The temperature is set so that it will expand to the maximum at 39°C ± 2°C and contract to the minimum at 30°C ± 1°C. This coil spring 3 is fitted into the outer cylinder 2, and when the temperature reaches the set temperature range, the coil spring 3 expands or contracts to slide the piston plate 4, that is, to cause the rod 41 to protrude or retreat. When contracted, it does not have the same restoring force as when it is extended, so in order to compensate for this, a normal coil spring 7 is fitted so as to face the coil spring 3, sandwiching the piston plate 4. The restoring force P of this coil spring 7 is determined by the following equation.
即ち、コイルスプリング３の伸長時の復元力を
P1、収縮時の復元力をP2としたとき、P1−Ｐ＝
P2＋ＰつまりＰ＝1/2（P1−P2）が成立するよう
にしておけば、ロツド４1の突出時と後退時の出
力が等しくなる。 In other words, the restoring force when the coil spring 3 is expanded is
P 1 , when the restoring force during contraction is P 2 , P 1 −P=
If P 2 +P, that is, P=1/2 (P 1 -P 2 ) is established, the output when the rod 41 is extended and when it is retracted will be equal.
このようにして構成した本案アクチユエータを
前記冷凍サイクルの圧縮機ａと凝縮器ｂの回路中
に三方弁ｅと逆止弁ｆを介して挿入する。つまり
圧縮機ａで断熱圧縮された高温冷媒を三方弁ｅの
切換えによりアクチユエータの外筒１の流入口１
１に導き、流出口１2から凝縮器ｂへ流れるように
する。また、ロツド４1の先端には図示しないが
ラツクを取付け、ダンパの回転軸に取付けられた
ピニオンに噛合するようにしてロツドの直線運動
によりダンパが回転して開閉するように構成して
おく。 The actuator of the present invention thus constructed is inserted into the circuit of the compressor a and condenser b of the refrigeration cycle through the three-way valve e and the check valve f. In other words, the high-temperature refrigerant compressed adiabatically by the compressor a is transferred to the inlet 1 of the outer cylinder 1 of the actuator by switching the three-way valve e.
1 and flow from outlet 1 2 to condenser b. Further, a rack (not shown) is attached to the tip of the rod 41 , and is configured to mesh with a pinion attached to the rotary shaft of the damper so that the linear movement of the rod rotates the damper to open and close it.
而して、冷蔵オープンシヨーケースが最大風量
で運転中に最小風量に切換えたい場合、三方弁ｅ
をアクチユエータ側に切換え、高温冷媒を流入口
１1から外筒１と内筒２の間隙Ｓに導入してやる
とこの冷媒により内筒２が加熱され、内部のコイ
ルスプリング３も加熱される。コイルスプリング
３は加熱されない通常の状態では第１図のように
収縮しているが、上記加熱により前記設定温度の
39℃前後になると形状記憶効果による第２図のよ
うに伸長し、ピストン板４を補償用のコイルスプ
リング７の復元力に抗して押し上げ、ピストン板
４と一体のロツド４1を突出させる。このロツド
４1の突出によりダンパの回転軸が回転し、空気
の取入口を部分的に閉鎖するからオープンシヨー
ケースは最小風量の運転となる。この最小風量の
運転中に三方弁ｅを元の状態に切換えると、冷媒
は圧縮機ａから凝縮器ｂに直接流れるようになる
ので、アクチユエータの外筒１及び内筒２は外部
に熱を放散して冷却し始め、コイルスプリング３
が設定温度の31℃前後に冷却されると収縮し始
め、補償用のコイルスプリング７の復元力により
ピストン板４が下降し、ロツド４1が第１図のよ
うに後退してダンパは元の最大風量となるように
回転する。 Therefore, if you want to switch to the minimum air volume while the refrigerated open air case is operating at maximum air volume, use the three-way valve e.
When the refrigerant is switched to the actuator side and high-temperature refrigerant is introduced into the gap S between the outer cylinder 1 and the inner cylinder 2 from the inlet 11 , the inner cylinder 2 is heated by this refrigerant, and the coil spring 3 inside is also heated. The coil spring 3 is normally contracted as shown in Fig. 1 when it is not heated, but due to the above-mentioned heating, the coil spring 3 is reduced to the set temperature.
When the temperature reaches around 39° C., the piston plate 4 is expanded as shown in FIG. 2 due to the shape memory effect, and the piston plate 4 is pushed up against the restoring force of the compensation coil spring 7, causing the rod 41 integral with the piston plate 4 to protrude. The protrusion of the rod 41 rotates the rotary shaft of the damper and partially closes the air intake, so that the open show case operates with the minimum air volume. If the three-way valve e is switched to its original state during operation at this minimum air volume, the refrigerant will flow directly from the compressor a to the condenser b, so the outer cylinder 1 and inner cylinder 2 of the actuator will dissipate heat to the outside. and start cooling, coil spring 3
When the damper is cooled to the set temperature of around 31°C, it begins to contract, and the restoring force of the compensating coil spring 7 causes the piston plate 4 to descend, and the rod 41 retreats as shown in Figure 1, returning the damper to its original state. Rotate to achieve maximum airflow.
爾後、三方弁を切換える毎に上記作動を反覆す
るものである。 Thereafter, the above operation is repeated every time the three-way valve is switched.
以上述べた如く、本考案に係るアクチユエータ
によれば、形状記憶合金で製作したコイルスプリ
ングと外筒と内筒から成る二重構造の容器内に嵌
装し、熱媒体と直接接触しないようにしてあるか
ら、その熱媒体が腐食性を持つたものであつても
容器を耐腐食性材料で以て成形しておけば、内部
のコイルスプリングは何等影響を受けず長期に亘
つて使用でき、耐久使用性に優れるとともに、本
実施例として挙示した冷凍サイクルのような閉回
路であつてもの回路中に簡単に挿入することがで
きる等制御が簡単であり、内筒内に比熱の異なる
気体、液体等を選択して封入することによつてコ
イルスプリングへの熱の伝導時間を調節し、作動
するまでの猶予時間を調節することが可能であ
り、熱源さえあれば本案アクチユエータにより駆
動力を取り出すことができるので、本実施例で述
べたオープンシヨーケースのダンパの開閉用に限
らず、例えば、自動車の排気熱を利用してウイン
ドウを開閉するための駆動源に利用するようなこ
とも可能であり、省エネルギーに役立つものであ
る。 As described above, according to the actuator of the present invention, the actuator is fitted in a double-structured container consisting of a coil spring made of a shape memory alloy, an outer cylinder, and an inner cylinder, and is prevented from coming into direct contact with the heat medium. Therefore, even if the heat transfer medium is corrosive, if the container is made of corrosion-resistant material, the coil spring inside will not be affected in any way and can be used for a long time, ensuring durability. In addition to being easy to use, it is easy to control as it can be easily inserted into a closed circuit like the refrigeration cycle shown in this example, and gases with different specific heats, By selecting and enclosing liquid etc., it is possible to adjust the heat conduction time to the coil spring and the grace period until activation, and as long as a heat source is available, the actuator of this invention can extract the driving force. Therefore, it is possible to use not only the opening and closing of the damper of the open show case as described in this embodiment, but also the use as a driving source for opening and closing windows using exhaust heat of automobiles, for example. This is useful for energy conservation.
図面は本考案の実施態様を例示するもので、第
１図は本案アクチユエータの作動前の状態を表わ
す縦断側面図、第２図は同アクチユエータの作動
状態を表わす同縦断側面図、第３図は同アクチユ
エータを冷凍サイクル中に挿入した状態を表わす
フローチヤートである。
１……外筒、２……内筒、３……コイルスプリ
ング、４……ピストン板、４1……ロツド。
The drawings illustrate an embodiment of the present invention, and FIG. 1 is a vertical side view showing the actuator of the present invention in a state before operation, FIG. 2 is a vertical side view showing the actuator in an operating state, and FIG. This is a flowchart showing a state in which the actuator is inserted into a refrigeration cycle. 1... Outer cylinder, 2... Inner cylinder, 3... Coil spring, 4... Piston plate, 4 1 ... Rod.
Claims (1)
設定した温度で復元する形状記憶合金で製作した
コイルスプリング３を嵌装するとともに、同コイ
ルスプリング３の復元力により付勢されるロツド
４1と一体のピストン板４を摺動自在に嵌装し、
前記外筒１には熱媒体の流入口１1と、流出口１2
を設けて成るアクチユエータ。 In the inner cylinder 2 fitted with a gap in the outer cylinder 1,
A coil spring 3 made of a shape memory alloy that recovers at a set temperature is fitted, and a piston plate 4 integrated with a rod 41 , which is biased by the restoring force of the coil spring 3, is slidably fitted. ,
The outer cylinder 1 has an inlet 1 1 and an outlet 1 2 for the heat medium.
An actuator comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985021793U JPH0241352Y2 (en) | 1985-02-18 | 1985-02-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985021793U JPH0241352Y2 (en) | 1985-02-18 | 1985-02-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61137886U JPS61137886U (en) | 1986-08-27 |
| JPH0241352Y2 true JPH0241352Y2 (en) | 1990-11-02 |
Family
ID=30513512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985021793U Expired JPH0241352Y2 (en) | 1985-02-18 | 1985-02-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0241352Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2920476B1 (en) * | 2007-09-05 | 2018-04-27 | Safran Aircraft Engines | ACTUATING DEVICE, DISCHARGE SYSTEM WHERE IT IS EQUIPPED AND TURBOJET ENGINE COMPRISING THE SAME |
-
1985
- 1985-02-18 JP JP1985021793U patent/JPH0241352Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61137886U (en) | 1986-08-27 |
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