JPH01105129A - Temperature sensing operation body - Google Patents
Temperature sensing operation bodyInfo
- Publication number
- JPH01105129A JPH01105129A JP20684687A JP20684687A JPH01105129A JP H01105129 A JPH01105129 A JP H01105129A JP 20684687 A JP20684687 A JP 20684687A JP 20684687 A JP20684687 A JP 20684687A JP H01105129 A JPH01105129 A JP H01105129A
- Authority
- JP
- Japan
- Prior art keywords
- magnet
- temperature
- force
- magnetic
- spring
- 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.)
- Granted
Links
- 230000007423 decrease Effects 0.000 abstract description 7
- 230000002093 peripheral effect Effects 0.000 abstract description 4
- 229910000859 α-Fe Inorganic materials 0.000 abstract description 3
- 238000006073 displacement reaction Methods 0.000 description 12
- 238000004804 winding Methods 0.000 description 6
- 230000000704 physical effect Effects 0.000 description 2
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000006903 response to temperature Effects 0.000 description 1
- 229910001285 shape-memory alloy Inorganic materials 0.000 description 1
Landscapes
- Measuring Temperature Or Quantity Of Heat (AREA)
- Details Of Measuring And Other Instruments (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、温度に応じて作動端に変位を生じ、弁、スイ
ッチ等駆動源として用いられる感温作動体に関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a temperature-sensitive actuating body that causes displacement at its operating end in response to temperature and is used as a driving source for valves, switches, etc.
従来の技術と問題点
従来より感温作動体として、バイメタル、形状記憶合金
の変形を用いたもの、ワックス等の熱膨張を用いたもの
、あるいはサーミスタと増幅器、モータを組合せたもの
等檀々の形式のものが知られている。Conventional Technology and Problems Conventionally, various temperature-sensitive actuators have been used, such as those using bimetals, deformed shape memory alloys, thermal expansion of wax, etc., or combinations of thermistors, amplifiers, and motors. The format is known.
しかし精度、耐久性、信頼性等の点で十分満足しうるも
のは得られていない。すなわち、バイメタル等の機械的
変形を利用したものでは、機械的歪により精度、耐久性
が低下しやすく、またサーミスタ等の非機械的物性変化
を用いたものでは機械的変位を得るため複雑な構造を必
要とし信頼性低下を起す。However, nothing that is fully satisfactory in terms of accuracy, durability, reliability, etc. has yet to be obtained. In other words, products that utilize mechanical deformation such as bimetals tend to have reduced accuracy and durability due to mechanical distortion, and products that use non-mechanical changes in physical properties such as thermistors require complex structures to obtain mechanical displacement. is required, resulting in a decrease in reliability.
そこで本発明は、フェライト磁石等の永久磁石が温度変
化により磁力に変化を生じる性質があることに着目し、
この性質が非機械的物性変化であり、かつ容易に機械変
位に変換しうるものであることを利用し、高精度、高信
頼性を有する感温作動体を実現することを目的としてな
されたものである。Therefore, the present invention focuses on the fact that permanent magnets such as ferrite magnets have the property of causing changes in magnetic force due to temperature changes,
Utilizing the fact that this property is a non-mechanical change in physical property and can be easily converted into mechanical displacement, the purpose was to realize a temperature-sensitive actuating body with high precision and high reliability. It is.
問題点を解決するための手段
すなわち本発明は、固定磁石に、作動端と結合した可動
磁石を対向させ、この可動磁石に、前記固定磁石との間
の磁気吸引または反発力に抗する力を加えるバネを設け
、さらに前記固定磁石、可動磁石の少なくとも１を、温
度により磁力が変化する感温永久磁石より形成してなる
感温作動体である。A means for solving the problem, that is, the present invention, is to provide a fixed magnet with a movable magnet coupled to an operating end facing the fixed magnet, and apply a force to the movable magnet that resists the magnetic attraction or repulsion between the fixed magnet and the fixed magnet. The temperature-sensitive actuating body is provided with a spring for applying force, and at least one of the fixed magnet and the movable magnet is formed of a temperature-sensitive permanent magnet whose magnetic force changes depending on the temperature.
作用
この感温作動体では、固定磁石または可動磁石の磁力が
温度により変化し、可動磁石は、磁力とバネからの力の
双方を受けているため、この変化によって移動させられ
、作動端には温度に応じた変位が生じる。Action In this temperature-sensitive actuator, the magnetic force of the fixed magnet or the movable magnet changes depending on the temperature, and the movable magnet receives both the magnetic force and the force from the spring, so it is moved by this change, and the operating end Displacement occurs depending on temperature.
実施例
以下本発明を図示する実施例について具体的に説明する
。EXAMPLES Below, examples illustrating the present invention will be specifically described.
第１図、第２図は第１実施例の感温作動体１０を示す。FIGS. 1 and 2 show a temperature-sensitive operating body 10 according to a first embodiment.
この感温作動体１０において、１１は固定磁石でＩｌｌ
、フェライト磁石等の温度上昇に伴い磁力が低下する性
質の感温永久磁石よりなシ、円環状に形成され、その内
周面に、Ｎ磁極１２、Ｓ磁極１３が、それぞれ着磁され
ている。１４は可動磁石でらシ、前記固定磁石１１と同
様の感温永久磁石よりｈｈ、円板状く形成され、その外
周面に、Ｎ磁極１５、Ｓ磁極１６が、それぞれ着磁され
ている。１７は作動端であシ、可動磁石１４の中央に挿
通固定された回転軸よ）な９、固定磁石１１をおおうフ
レーム１８に軸支され、可動磁石１４を固定磁石１１内
に嵌合させ両磁石の磁極を対向させて、可動磁石１４と
ともに回動することができる。１９Ｆｉバネでｓｂ、フ
レーム１８と可動磁石１４との間に設けられ、可動磁石
１４ヲ、そのＮ磁オ血
極１５、Ｓ磁極１６が固定磁石０８ａ−ｉｉｉ１３、Ｎ
磁極１２と吸引した状態から引離して回動させる方向の
力を加える。In this temperature-sensitive actuating body 10, 11 is a fixed magnet.
, a temperature-sensitive permanent magnet whose magnetic force decreases as the temperature rises, such as a ferrite magnet, is formed in an annular shape, and an N magnetic pole 12 and an S magnetic pole 13 are respectively magnetized on its inner peripheral surface. . Reference numeral 14 is a movable magnet, which is made of a temperature-sensitive permanent magnet similar to the fixed magnet 11 and is formed into a disk shape, and an N magnetic pole 15 and an S magnetic pole 16 are respectively magnetized on the outer peripheral surface thereof. Reference numeral 17 denotes a rotating shaft that is inserted into the center of the movable magnet 14 and is fixed thereto.9 is pivotally supported by a frame 18 that covers the fixed magnet 11, and the movable magnet 14 is fitted into the fixed magnet 11 and both It can rotate together with the movable magnet 14 with the magnetic poles of the magnets facing each other. A 19Fi spring is provided between the frame 18 and the movable magnet 14, and the movable magnet 14, its N magnetic pole 15 and S magnetic pole 16 are fixed magnets 08a-iii13, N
A force is applied in a direction to separate the magnetic pole 12 from the attracted state and rotate it.
この感温作動体】０は以上の構成であ９１次のように作
動する。低温時には、固定磁石１１、可動磁石１４は磁
力が強いので、第２図Ａに示すようにバネ１９の力に抗
して、可動磁石１４はその磁極１５，１６１−固定磁石
の磁極１３．１２に重ねる位置にある。高温時には、固
定磁石１１．可動磁石１４の磁力が低下するので、第２
図Ｂに示すように、バネ１９の力によって、可動磁石は
その磁極１３゜１６が固定磁石の磁極１３．１２からず
れを生じた位置に回動し移動する。すなわち、温度に応
じて作動端は回転変位を生じる。This temperature-sensitive operating body 0 has the above configuration and operates as follows. At low temperatures, the fixed magnet 11 and the movable magnet 14 have strong magnetic forces, so the movable magnet 14 resists the force of the spring 19 as shown in FIG. It is located on top of the At high temperatures, the fixed magnet 11. Since the magnetic force of the movable magnet 14 decreases, the second
As shown in Figure B, the force of the spring 19 causes the movable magnet to rotate and move to a position in which its magnetic pole 13.16 is offset from the magnetic pole 13.12 of the fixed magnet. That is, the working end undergoes rotational displacement depending on the temperature.
第３図、第４図は第２実施例の感温作動体３０を示す。FIGS. 3 and 4 show a temperature-sensitive actuating body 30 of a second embodiment.
この感温作動体３０は前記感温作動体１０とほぼ同構成
であル、固定磁石のみを電磁石に置換したものである。This temperature-sensitive actuator 30 has almost the same configuration as the temperature-sensitive actuator 10, except that only the fixed magnet is replaced with an electromagnet.
この感温作動体３０において、３１社電磁石よりなる固
定磁石であり、巻線３２．３２を有し、Ｎａ極３３、Ｓ
磁極３４を有する。３５は前記と同様の感温永久磁石よ
りなる可動磁石でｈＤ％Ｎ磁極３６、Ｓ磁極３７を有す
る。３８は作動端、３９はフレーム。In this temperature-sensitive actuating body 30, it is a fixed magnet made of electromagnet made by 31 companies, has windings 32, 32, Na poles 33, S
It has a magnetic pole 34. 35 is a movable magnet made of a temperature-sensitive permanent magnet similar to the above, and has an hD%N magnetic pole 36 and an S magnetic pole 37. 38 is the operating end, and 39 is the frame.
４０はバネである。40 is a spring.
この感温作動体３０は以上の構成であるから、巻線３２
．３２に通電し、固定磁石３１を磁化すると。Since this temperature-sensitive actuating body 30 has the above configuration, the winding 32
．． 32 and magnetizes the fixed magnet 31.
前記感温作動体１０と同様の作動を生じる。さらにこの
感温作動体３０では、巻線３２．３２の電流を加減し、
固定磁石３１の磁力を変化させることにより、可動磁石
３５１作動端３８に回転変位を起すことができ、温度に
よる変位に、電流による変位を重畳させることができ、
より広い応用範囲に使用することができる。The same operation as that of the temperature-sensitive actuator 10 occurs. Furthermore, in this temperature-sensitive actuating body 30, the current in the windings 32 and 32 is adjusted,
By changing the magnetic force of the fixed magnet 31, rotational displacement can be caused in the operating end 38 of the movable magnet 351, and displacement due to current can be superimposed on displacement due to temperature.
It can be used for a wider range of applications.
第５図は第３実施例の感温作動体５０を示す。FIG. 5 shows a temperature-sensitive actuator 50 of a third embodiment.
この感温作動体５０は直線状の変位を生じるものであり
、磁気反発力の温度変化を利用したものである。This temperature-sensitive actuating body 50 causes linear displacement, and utilizes temperature changes in magnetic repulsion.
この感温作動体５０において、５１は固定磁石で６９、
前記と同様の感温永久磁石よりなす、略カップ状に形成
され、内周面の口部にＮ磁極５２、奥部にＳ磁極５３が
着磁されている。５４は可動磁石であり、前記と同様の
感温永久磁石よりなシ、略円柱状に形成されて固定磁石
５１内に嵌入され、局面の固定磁石５１０部位置にＮ磁
極５５、奥部位置にＳ磁極５６が着磁され、固定磁石５
１の磁極５２．５３と対向し反発力を生じるようにされ
ている６５７は作動端であり、可動磁石５４に先端に設
けられ、′固定磁石５１、可動磁石５４をおおうフレー
ム５８から突出している。５９社バネであシ、フレーム
５８と可動磁石５４との間に設けられ、可動磁石５４に
、固定磁石５１内に押込むような力を加える。In this temperature-sensitive actuating body 50, 51 is a fixed magnet 69,
It is formed into a substantially cup shape made of the same temperature-sensitive permanent magnet as described above, and has an N magnetic pole 52 magnetized at the mouth of the inner circumferential surface and an S magnetic pole 53 at the back. Reference numeral 54 denotes a movable magnet, which is not a temperature-sensitive permanent magnet similar to the above, but is formed into a substantially cylindrical shape and is fitted into the fixed magnet 51, with an N magnetic pole 55 at the position of the fixed magnet 510 on the curve, and an N magnetic pole 55 at the inner position. The S magnetic pole 56 is magnetized, and the fixed magnet 5
The operating end 657 faces the magnetic poles 52 and 53 of 1 and generates a repulsive force, and is provided at the tip of the movable magnet 54 and protrudes from the frame 58 that covers the fixed magnet 51 and the movable magnet 54. . A 59 spring is provided between the frame 58 and the movable magnet 54, and applies a force to the movable magnet 54 to push it into the fixed magnet 51.
この感温作動体５０は以上の構成であるから、次のよう
に作動する。低温時には、固定磁石５１、可動磁石５４
の磁力が強いので、可動磁石５４は磁気反発力により固
定磁石５１から押出され、作動端５７はフレーム５８か
ら大きく突出している。高温時には、固定磁石５１、可
動磁石５４の磁力が低下するので、バネ５９０力により
可動磁石５４は固定磁石５１内に押込まれ、作動端５７
はフレーＡ５８内に退入する。よって作動端５７は温度
によυ軸方向変位を生じる。Since this temperature-sensitive operating body 50 has the above configuration, it operates as follows. At low temperatures, the fixed magnet 51 and the movable magnet 54
Since the magnetic force is strong, the movable magnet 54 is pushed out from the fixed magnet 51 by magnetic repulsion, and the operating end 57 largely protrudes from the frame 58. At high temperatures, the magnetic force of the fixed magnet 51 and the movable magnet 54 decreases, so the movable magnet 54 is pushed into the fixed magnet 51 by the force of the spring 590, and the working end 57
moves into frame A58. Therefore, the operating end 57 is displaced in the υ-axis direction due to temperature.
第６図は第４実施例の感温作動体７０を示す。FIG. 6 shows a temperature-sensitive operating body 70 according to a fourth embodiment.
この感温作動体７０は、直線状の変位を生じるものであ
シ、電磁石を用い、磁気吸引力を利用したものである。The temperature-sensitive actuating body 70 generates linear displacement, uses an electromagnet, and utilizes magnetic attraction force.
この感温作動体７０において、７１は固定磁石であシ、
中空円筒状コアの外周に巻線７２ｔ−設けた電磁石より
なり、円周の一端にＮ磁極７３、他端にＳ磁極７４を生
じる。７５は可動磁石であシ、前記と同様の感温永久磁
石よルなシ、略円柱状に形成されて固定磁石７１内に嵌
入され、局面の一端にＮ磁極７６、他端にＳ磁極７７が
着磁され、固定磁石７１の磁極７４．７３と対向し、磁
気吸引力が働くように配置されている。７８は作動端で
あゃ、可動磁石７５先喘に設けられ、全体をおおうフレ
ーム７９から突出している。８０はバネであり、フレー
ム７９と可動磁石７５との間に設けられ、可動磁石７５
に、固定磁石７１から押出すような力を加える。In this temperature-sensitive actuating body 70, 71 is a fixed magnet;
It consists of an electromagnet with a winding 72t provided around the outer periphery of a hollow cylindrical core, with an N magnetic pole 73 at one end of the circumference and an S magnetic pole 74 at the other end. Reference numeral 75 is a movable magnet, which is similar to the temperature-sensitive permanent magnet described above, is formed into a substantially cylindrical shape and is fitted into the fixed magnet 71, and has an N magnetic pole 76 at one end of the curve and an S magnetic pole 77 at the other end. is magnetized and placed so as to face the magnetic poles 74 and 73 of the fixed magnet 71 so as to exert a magnetic attraction force. Reference numeral 78 is an operating end, which is provided at the front end of the movable magnet 75 and protrudes from a frame 79 that covers the entire structure. A spring 80 is provided between the frame 79 and the movable magnet 75.
A pushing force is applied from the fixed magnet 71 to .
この感温作動体７０は以上の構成であるから、巻線７２
に通電し固定磁石７１を磁化すると、次のように作動す
る。低温時には可動磁石７５は磁力が強いので固定磁石
７１内に吸引され、高温時には磁力が低下し、バネ８０
により固定磁石７１から押出され、このため作動端７８
は温度に応じてフレーム７９から突出退入し直線変位を
生じる。また巻線７２の電流を加減することによっても
可動磁石７５、作動端７８を移動させることができ、前
記第２実施例の感温作動体３０と同様、多様に応用する
ことができる。Since this temperature-sensitive actuating body 70 has the above configuration, the winding 72
When the fixed magnet 71 is magnetized by energizing it, it operates as follows. At low temperatures, the movable magnet 75 has a strong magnetic force and is attracted into the fixed magnet 71, and at high temperatures, the magnetic force decreases and the spring 80
The actuating end 78 is pushed out from the fixed magnet 71 by the
protrudes and retreats from the frame 79 depending on the temperature, causing linear displacement. Furthermore, the movable magnet 75 and the operating end 78 can be moved by adjusting the current in the winding 72, and as with the temperature-sensitive actuating body 30 of the second embodiment, various applications can be achieved.
発明の効果
本発明の感温作動体は、上述のように、感温永久磁石の
温度による磁力変化を直接作動端の機械的変位に変換す
る構造であるので、バイメタルのような機械的歪による
精度低下、耐久性減少を生じることがなく、かつ極めて
簡単な構造であるため高い信頼性金得ることができる。Effects of the Invention As mentioned above, the temperature-sensitive actuating body of the present invention has a structure that directly converts changes in magnetic force due to temperature of the temperature-sensitive permanent magnet into mechanical displacement of the actuating end, so it is not affected by mechanical strain such as bimetallic materials. There is no decrease in accuracy or durability, and the structure is extremely simple, so high reliability can be obtained.
第１図は本発明の第１実施例の正断゛面図、第２図は前
図のＩＩ −ＩＩ線断面図であって、Ａは低温時、Ｂは
高温時の状態を示す。第３図は第２実施例の正断面図、
第４図は前図のＩＶ−ｆｆ線断面図である。
第５図は第３実施例の正断面図、第６図は第４実施例の
正断面図である。
１０．３０，５０．７０・・・・・・感温作動体、 １
１，３１．５１．７１−・−・固定磁石、 １４．３５
，５４．７５・・・・・・可動磁石、 １７．３８゜５
７．７８・・・・・・作動端、 １９．４０．５９．８
０・・−・・バネ。
第１図
投
第２図
第３因
箆４図FIG. 1 is a front sectional view of the first embodiment of the present invention, and FIG. 2 is a sectional view taken along the line II--II of the previous figure, where A shows the state at a low temperature and B shows the state at a high temperature. FIG. 3 is a front sectional view of the second embodiment;
FIG. 4 is a sectional view taken along the line IV-ff in the previous figure. FIG. 5 is a front sectional view of the third embodiment, and FIG. 6 is a front sectional view of the fourth embodiment. 10.30, 50.70...Temperature-sensitive actuating body, 1
1,31.51.71--Fixed magnet, 14.35
,54.75...Movable magnet, 17.38°5
7.78... Working end, 19.40.59.8
0...--Spring. Figure 1 Figure 2 Figure 3 Figure 4
Claims (1)
、この可動磁石に、前記固定磁石との間の磁気吸引また
は反発力に抗する力を加えるバネを設け、さらに前記固
定磁石、可動磁石の少なくとも１を、温度により磁力が
変化する感温永久磁石より形成してなる感温作動体。1. A movable magnet coupled to an operating end is opposed to a fixed magnet, and a spring is provided to this movable magnet to apply a force to resist magnetic attraction or repulsion between the fixed magnet and the fixed magnet, and the movable magnet is A temperature-sensitive actuating body in which at least one of the magnets is a temperature-sensitive permanent magnet whose magnetic force changes depending on temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62206846A JP2582583B2 (en) | 1987-08-20 | 1987-08-20 | Temperature-sensitive actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62206846A JP2582583B2 (en) | 1987-08-20 | 1987-08-20 | Temperature-sensitive actuator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01105129A true JPH01105129A (en) | 1989-04-21 |
| JP2582583B2 JP2582583B2 (en) | 1997-02-19 |
Family
ID=16530026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62206846A Expired - Lifetime JP2582583B2 (en) | 1987-08-20 | 1987-08-20 | Temperature-sensitive actuator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2582583B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0760550A1 (en) * | 1995-08-28 | 1997-03-05 | Mikuni Corporation | Thermo-sensitive actuator and idle speed controller employing the same |
| EP0854561A2 (en) * | 1995-08-30 | 1998-07-22 | Mikuni Corporation | Thermo-sensitive actuator and idle speed controller employing the same |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4036432Y1 (en) * | 1964-12-21 | 1965-12-25 | ||
| JPS51140772A (en) * | 1975-05-30 | 1976-12-03 | Hitachi Ltd | Spring balancing thermal actuating device |
| JPS53120081A (en) * | 1977-03-30 | 1978-10-20 | Hitachi Metals Ltd | Thermosensing intermittent driving device |
-
1987
- 1987-08-20 JP JP62206846A patent/JP2582583B2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4036432Y1 (en) * | 1964-12-21 | 1965-12-25 | ||
| JPS51140772A (en) * | 1975-05-30 | 1976-12-03 | Hitachi Ltd | Spring balancing thermal actuating device |
| JPS53120081A (en) * | 1977-03-30 | 1978-10-20 | Hitachi Metals Ltd | Thermosensing intermittent driving device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0760550A1 (en) * | 1995-08-28 | 1997-03-05 | Mikuni Corporation | Thermo-sensitive actuator and idle speed controller employing the same |
| EP0854561A2 (en) * | 1995-08-30 | 1998-07-22 | Mikuni Corporation | Thermo-sensitive actuator and idle speed controller employing the same |
| EP0854561A3 (en) * | 1995-08-30 | 1998-07-29 | Mikuni Corporation | Thermo-sensitive actuator and idle speed controller employing the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2582583B2 (en) | 1997-02-19 |
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