JPH0224003B2 - - Google Patents
Info
- Publication number
- JPH0224003B2 JPH0224003B2 JP59271240A JP27124084A JPH0224003B2 JP H0224003 B2 JPH0224003 B2 JP H0224003B2 JP 59271240 A JP59271240 A JP 59271240A JP 27124084 A JP27124084 A JP 27124084A JP H0224003 B2 JPH0224003 B2 JP H0224003B2
- Authority
- JP
- Japan
- Prior art keywords
- magnetic core
- coil
- shape
- temperature
- coil shape
- 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 - Lifetime
Links
- 229910001285 shape-memory alloy Inorganic materials 0.000 claims description 7
- 229910045601 alloy Inorganic materials 0.000 description 6
- 239000000956 alloy Substances 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 229910000734 martensite Inorganic materials 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- 229910000976 Electrical steel Inorganic materials 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910017518 Cu Zn Inorganic materials 0.000 description 1
- 229910017752 Cu-Zn Inorganic materials 0.000 description 1
- 229910017773 Cu-Zn-Al Inorganic materials 0.000 description 1
- 229910017767 Cu—Al Inorganic materials 0.000 description 1
- 229910017943 Cu—Zn Inorganic materials 0.000 description 1
- 229910004337 Ti-Ni Inorganic materials 0.000 description 1
- 229910011209 Ti—Ni Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- TVZPLCNGKSPOJA-UHFFFAOYSA-N copper zinc Chemical compound [Cu].[Zn] TVZPLCNGKSPOJA-UHFFFAOYSA-N 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- KHYBPSFKEHXSLX-UHFFFAOYSA-N iminotitanium Chemical compound [Ti]=N KHYBPSFKEHXSLX-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000006903 response to temperature Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/02—Casings
- H01F27/027—Casings specially adapted for combination of signal type inductors or transformers with electronic circuits, e.g. mounting on printed circuit boards
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F5/00—Coils
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Coils Or Transformers For Communication (AREA)
- Coils Of Transformers For General Uses (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、形状記憶合金を用いたコイルに関
するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a coil using a shape memory alloy.
最近、形状記憶合金（Shape Memory Alloy
以下SMAと云う）は、温度センサーと、そのセ
ンサーによつて自らアクチエーターとして動作す
る二つの機能を合わせ持つ合金であり、その利用
範囲も拡がつている。例えばS59.11.9朝日新聞
（朝刊）「くらしの科学」に種々の応用が紹介さ
れ、またKKアグネ「金属」1984年５月号Vol54，
No.5P2〜８にはエアコンの風向調節機構への実用
化について記載されている。
Recently, shape memory alloy (Shape Memory Alloy)
SMA (hereinafter referred to as SMA) is an alloy that has the dual functions of acting as a temperature sensor and acting as an actuator using the sensor, and its range of uses is expanding. For example, various applications were introduced in Asahi Shimbun (morning edition) ``Science of Life'' on November 9, 1984, and KK Agne ``Metal'' May 1984 issue Vol.
No. 5P2 to 8 describe the practical application to the wind direction adjustment mechanism of an air conditioner.
一般の金属では弾性限界を越えて変形すると、
塑性変形となり、永久に形状は元にもどらない。
しかし、SMAは塑性ひずみを加えても形状が回
復する。これは変形の可逆的なマルテンサイト変
態によつて行なわれ、高温で記憶した形状をマル
テンサイト変態を起こす温度以下の低温にして変
形する。これを逆に高温にして行くとマルテンサ
イト相から元の母相への逆変態が起こり、高温時
記憶した元の形状に変形する。 When ordinary metals deform beyond their elastic limit,
It becomes plastically deformed and never returns to its original shape.
However, SMA recovers its shape even when subjected to plastic strain. This is done by reversible martensitic transformation, and the shape memorized at a high temperature is deformed by lowering the temperature below the temperature at which martensitic transformation occurs. Conversely, when the temperature is increased, a reverse transformation occurs from the martensitic phase to the original matrix phase, and the material deforms to the original shape memorized at the high temperature.
この合金はTi−Ni系とCu系があり、Cu系には
Cu−Zn合金、Cu−Al合金、Cu−Zn−Al合金等
が用いられている。 This alloy has Ti-Ni type and Cu type, and Cu type has
Cu-Zn alloy, Cu-Al alloy, Cu-Zn-Al alloy, etc. are used.
変形を生じる温度は、合金の種類や加工、熱処
理等によつて異なり、所定の温度で変形を生じる
ようにし、種々の応用がなされている。 The temperature at which deformation occurs varies depending on the type of alloy, processing, heat treatment, etc., and various applications have been made to cause deformation at a predetermined temperature.
従来のSMAの利用はいずれも温度センサーと
その機械的動作を用いたものであり、電気回路の
素子として利用されている例はサーモスタツト
（これも機械的動作の利用であるが）に用いられ
る程度であつた。
All conventional uses of SMA are based on temperature sensors and their mechanical action, and an example of their use as an element in an electrical circuit is in thermostats (which also use mechanical action). It was moderately hot.
この発明は、SMAを電気回路素子である磁心
入りコイルに利用することを目的としている。 This invention aims to utilize SMA in a coil with a magnetic core, which is an electric circuit element.
この発明の磁心入りコイルは磁心とその周りに
コイル状に変形するSMA線を配設したものであ
る。
The coil with a magnetic core of the present invention has a magnetic core and an SMA wire that is deformed into a coil shape arranged around the magnetic core.
磁心の近傍に配設したSMA線がそのSMA線の
所定の変形温度に達すると磁心の周りにコイル状
に変形し磁心入りコイルを形成する。
When the SMA wire placed near the magnetic core reaches a predetermined deformation temperature, the SMA wire deforms into a coil shape around the magnetic core to form a core-containing coil.
以下、この発明の一実施例を図について説明す
る。第１図ａおよびｂにおいて、１はけい素鋼板
や軟鉄などで形成された磁心、２はSMA線であ
る。まず、第１図ｂの如くSMA線２にコイル形
状を高温で記憶させておき、低温で第１図ａの如
く直線状に変形しておく。ここで周囲温度または
SMA線２自身の温度が所定の変形温度以上にな
ると元のコイル形状に変形するが、このとき磁心
（珪素鋼板や軟鉄等）がコイル状のSMA線２の中
に位置するよう配設しておくと、第１図ｂのよう
に磁心入りコイルを形成し回路素子として種々の
電気回路に利用できる。この素子はAC，DCのい
ずれも利用でき、ACでは可変インピーダンス素
子として空心コイルよりもインピーダンスの大き
い回路素子となり、また高周波ではダストコアな
ども用いることもできる。DC，AC共マグネツト
として利用できる。
An embodiment of the present invention will be described below with reference to the drawings. In FIGS. 1a and 1b, 1 is a magnetic core made of silicon steel plate or soft iron, and 2 is an SMA wire. First, the coil shape is memorized in the SMA wire 2 at a high temperature as shown in FIG. 1b, and then deformed into a linear shape as shown in FIG. 1a at a low temperature. where the ambient temperature or
When the temperature of the SMA wire 2 itself exceeds a predetermined deformation temperature, it deforms to its original coil shape, but at this time, the magnetic core (silicon steel plate, soft iron, etc.) must be arranged so that it is located inside the coiled SMA wire 2. Then, as shown in FIG. 1b, a coil with a magnetic core is formed and can be used as a circuit element in various electric circuits. This element can be used for both AC and DC; for AC, it becomes a variable impedance element with higher impedance than an air-core coil, and for high frequencies, a dust core can also be used. Can be used as both DC and AC magnets.
第２図ａ，ｂは、この発明の他の実施例で、
SMA線２，３を配設し、第１図の場合と同様に
低温で第２図ａから高温で第２図ｂの如く変形
し、相互インダクタンス素子やマグネツトとして
用いることができる。 FIGS. 2a and 2b show other embodiments of the invention,
The SMA wires 2 and 3 are disposed, and as in the case of FIG. 1, the wires are deformed from a state shown in FIG. 2a at a low temperature to a state shown in FIG. 2b at a high temperature, and can be used as a mutual inductance element or a magnet.
また、SMA線の１と２の変形温度を異なるも
のにしておけば、二つの温度で回路常数を変化さ
せることができる。これらは３個以上のコイルで
形成するようにしてもよい。 Furthermore, by setting the deformation temperatures of SMA wires 1 and 2 to be different, it is possible to change the circuit constants at the two temperatures. These may be formed by three or more coils.
また、第２図ｂの片方、例えば２を普通の銅線
で巻いておき、３のみSMA線として変形させる
ようにしてもよい。 Alternatively, one of the wires in FIG. 2b, for example 2, may be wound with ordinary copper wire, and only 3 may be transformed into an SMA wire.
第３図は第１図の磁心入りコイルを用いた電気
回路の例で、４は普通の導線、５はキヤパシタ、
６は交流電源、１０は磁心入りコイルを形成する
部分である。第３図ａでは共振しないが、高温に
なり第３図ｂの回路になると、交流電源６の周波
数に共振するよう回路常数を決めておけば直列共
振を起こし、この信号を取り出して利用できる。 Figure 3 is an example of an electric circuit using the magnetic core coil shown in Figure 1, where 4 is an ordinary conductor, 5 is a capacitor,
6 is an AC power supply, and 10 is a part forming a coil with a magnetic core. There is no resonance in FIG. 3a, but when the temperature rises to the circuit shown in FIG. 3b, if the circuit constants are determined so that it resonates with the frequency of the AC power source 6, series resonance will occur, and this signal can be extracted and used.
第４図はDCマグネツトとして利用した例で、
第４図ａからｂになり、DCマグネツトとしての
機能を持つようにしたものである。 Figure 4 shows an example of using it as a DC magnet.
Figures 4a to 4b show that the magnet has the function of a DC magnet.
以上の実施例では高温になると、コイル状に変
形する例を示したが、逆に低温でコイル状、高温
で直線状になるSMA線を用いてもよい。また、
直線状まで変形させなくて、コイル状の粗い巻き
形状からコイル状の密の巻き形状に変化させるよ
うにしてもよい。 In the above embodiments, an example was shown in which the wire deforms into a coil shape when the temperature rises, but conversely, an SMA wire which becomes a coil shape at a low temperature and a straight shape at a high temperature may also be used. Also,
Instead of deforming to a linear shape, the shape may be changed from a coarsely wound coil shape to a densely wound coil shape.
以上のように、この発明によれば、コイル状に
変形する形状記憶合金を磁心と組合せ、温度変化
に対応して磁心入りコイルを形成するようにした
ので、これを電気回路素子として種々利用するこ
とができる。
As described above, according to the present invention, a shape memory alloy that deforms into a coil shape is combined with a magnetic core to form a coil containing a magnetic core in response to temperature changes, and this can be used in various ways as an electric circuit element. be able to.
第１図ａ，ｂはこの発明の一実施例の磁心入り
コイルの原理図、第２図ａ，ｂはこの発明の他の
実施例の磁心入りコイルの原理図、第３図ａ，ｂ
および第４図ａ，ｂは第１図の磁心入りコイルを
電気回路に用いた回路図である。
図において、１は磁心、２，３は形状記憶合金
線、５はキヤパシタ、６は交流電源である。な
お、図中、同一符号は同一、又は相当部分を示
す。
Figures 1a and b are principle diagrams of a coil with a magnetic core according to an embodiment of the present invention, Figures 2a and b are principle diagrams of a coil with a magnetic core according to another embodiment of the invention, and Figures 3a and b are
4a and 4b are circuit diagrams in which the magnetic core-containing coil of FIG. 1 is used in an electric circuit. In the figure, 1 is a magnetic core, 2 and 3 are shape memory alloy wires, 5 is a capacitor, and 6 is an AC power source. In addition, in the figures, the same reference numerals indicate the same or equivalent parts.
Claims (1)
でコイル状に変形する形状記憶合金線を配設し、
上記所定温度になると上記形状記憶合金線が上記
磁心の周りにコイル状に変形する磁心入りコイ
ル。 ２ コイル状の変形は、疎に巻いたコイル形状か
ら密に巻いたコイル形状、または密に巻いたコイ
ル形状から疎に巻いたコイル形状に変形するよう
にしたことを特徴とする特許請求の範囲第１項に
記載の磁心入りコイル。[Claims] 1. A magnetic core and a shape memory alloy wire that is deformed into a coil shape at a temperature above or below a predetermined temperature is arranged in the vicinity of the core,
A coil with a magnetic core in which the shape memory alloy wire deforms into a coil shape around the magnetic core when the predetermined temperature is reached. 2. Claims characterized in that the coil shape deforms from a loosely wound coil shape to a densely wound coil shape, or from a densely wound coil shape to a sparsely wound coil shape. The magnetic core-containing coil according to item 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59271240A JPS61147508A (en) | 1984-12-20 | 1984-12-20 | Core coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59271240A JPS61147508A (en) | 1984-12-20 | 1984-12-20 | Core coil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61147508A JPS61147508A (en) | 1986-07-05 |
| JPH0224003B2 true JPH0224003B2 (en) | 1990-05-28 |
Family
ID=17497304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59271240A Granted JPS61147508A (en) | 1984-12-20 | 1984-12-20 | Core coil |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61147508A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0310002U (en) * | 1989-06-20 | 1991-01-30 |
-
1984
- 1984-12-20 JP JP59271240A patent/JPS61147508A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0310002U (en) * | 1989-06-20 | 1991-01-30 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61147508A (en) | 1986-07-05 |
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