JPS6139970Y2 - - Google Patents
Info
- Publication number
- JPS6139970Y2 JPS6139970Y2 JP1980033149U JP3314980U JPS6139970Y2 JP S6139970 Y2 JPS6139970 Y2 JP S6139970Y2 JP 1980033149 U JP1980033149 U JP 1980033149U JP 3314980 U JP3314980 U JP 3314980U JP S6139970 Y2 JPS6139970 Y2 JP S6139970Y2
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- magnetic material
- sensitive
- spin
- rearranged
- 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
- 239000000696 magnetic material Substances 0.000 claims description 18
- 235000014676 Phragmites communis Nutrition 0.000 claims description 7
- 230000004907 flux Effects 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims description 6
- 230000005415 magnetization Effects 0.000 claims description 6
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims description 5
- 229910052753 mercury Inorganic materials 0.000 claims description 5
- 230000008707 rearrangement Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910001120 nichrome Inorganic materials 0.000 description 1
- 230000004043 responsiveness Effects 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Description
【考案の詳細な説明】
本考案はフアン等により生ずる気流を検出する
気流検出器に関するものである。DETAILED DESCRIPTION OF THE PRESENT EMBODIMENT The present invention relates to an airflow detector for detecting airflow generated by a fan or the like.
本考案に係る気流検出器とは、例えば電子回路
等を令却するための気流が正常に流れているか否
かを検出するために使用するもので、ヒータ部分
と温度センサより構成される。 The airflow detector according to the present invention is used to detect whether or not airflow for cooling an electronic circuit or the like is flowing normally, and is composed of a heater part and a temperature sensor.
ヒータ部分は気流の流量とヒータ部の発熱量よ
り決定される温度を発生させるものである。 The heater section generates a temperature determined by the flow rate of the airflow and the amount of heat generated by the heater section.
温度センサはヒータ部分の温度を検出する。 The temperature sensor detects the temperature of the heater portion.
この様な気流検出器は、例えばフアンの近傍で
フアンにより起こされる気流の流れの中に配置
し、フアンが正常に動作している間は上記ヒータ
が該フアンのために令却され、温度が低い状態に
保たれる。 Such an airflow detector is placed, for example, in the vicinity of a fan and in the flow of airflow caused by the fan, and while the fan is operating normally, the heater is turned off for the fan and the temperature is reduced. kept low.
しかしながらフアンの動作に異状が生じ気流の
流れがなくなると、上記ヒータは令却されなくな
るため、高温になる。従つて、このヒータ部分の
温度を温度センサによつて検出すればフアンの動
作状態を検出出来る。 However, if an abnormality occurs in the operation of the fan and the airflow ceases, the heater is no longer turned on, resulting in a high temperature. Therefore, by detecting the temperature of this heater portion with a temperature sensor, the operating state of the fan can be detected.
この様な気流検出器は、従来はヒータ部品と温
度センサを別々に製造し、その後両者を近接して
取付け、固定していた。 In the past, such airflow detectors were manufactured by separately manufacturing the heater component and the temperature sensor, and then mounting and fixing the two in close proximity to each other.
しかしながら、この様な方法では、両者の距離
のばらつきにより気流の流れに対する検出特性に
ばらつきが生じるとともに、応答性が悪い欠点が
あつた。 However, such a method has the disadvantage that the detection characteristics for the airflow vary due to variations in the distance between the two, and the response is poor.
従つて本考案は上記欠点を解消した新規な気流
検出器を提供することを目的とするもので、この
目的は、フアン等により生ずる気流を検出する気
流検出器であつて、ヒータを温度検出用サーマル
リードスイツチまたはサーマルマーキユリースイ
ツチの感温部分である磁性材料に直接あるいは絶
縁膜を介して一体化する事により達成する事がで
きる。 Therefore, it is an object of the present invention to provide a new airflow detector that eliminates the above-mentioned drawbacks.The purpose of this invention is to provide an airflow detector that detects airflow generated by a fan, etc., and which uses a heater for temperature detection. This can be achieved by integrating directly or via an insulating film with the magnetic material that is the temperature sensitive part of a thermal reed switch or thermal marquee switch.
すなわち、本考案はヒータ部分と温度センサ部
分を一体化する事により、検出の応答性を向上さ
せるとともに、検出のばらつきを防止するように
したものである。 That is, the present invention improves the responsiveness of detection and prevents variations in detection by integrating the heater section and the temperature sensor section.
以下、本考案を図面により詳述する。 Hereinafter, the present invention will be explained in detail with reference to the drawings.
第１図及び第２図は、本考案の一実施例であ
る。 FIGS. 1 and 2 show an embodiment of the present invention.
図において、１はリードスイツチ、２はスピン
再配列型感温磁性材料、３は永久磁石、４は継
鉄、５はヒータをそれぞれ示す。 In the figure, 1 is a reed switch, 2 is a spin rearrangement type temperature-sensitive magnetic material, 3 is a permanent magnet, 4 is a yoke, and 5 is a heater.
１はリードスイツチ１（マーキユリースイツチ
等を含む）で磁界によりスイツチの開閉動作を行
う。本考案に係る温度感応部分は、第２図の様な
永久磁石３及び継鉄４及びスピン再配列型感温磁
性材料より構成されている。 1 is a reed switch 1 (including a Mercury switch, etc.), which opens and closes the switch using a magnetic field. The temperature sensitive part according to the present invention is composed of a permanent magnet 3, a yoke 4, and a spin rearrangement type temperature sensitive magnetic material as shown in FIG.
２はスピン再配列型感温磁性材料であり、温度
により矢印Ａ及びＢの方向に磁化容易軸が変化す
る。この温度感応部分の原理は、例えばある温度
以下ではスピン再配列型感温磁性材２は矢印Ｂの
方向が磁化容易軸であり、ある温度以上では矢印
Ａの方向が磁化容易軸とすると、矢印Ｂの方向に
磁化容易軸がある場合には、永久磁石３より発生
した磁束は継鉄４，４′を介してスピン再配列型
感温磁性体２通り閉磁気回路が構成されるため、
外界に対して磁束は漏洩しないが、磁化容易軸が
矢印Ａの方向になると閉磁気回路が磁性材２によ
り構成されないため、外部に磁束が漏洩する事と
なる。従つて、第１図に示す如くリードスイツチ
１をこの温度感応部分の近傍に配置すれば、温度
に対応したスイツチの開閉が得られる。 2 is a spin rearrangement type temperature-sensitive magnetic material, and the axis of easy magnetization changes in the directions of arrows A and B depending on the temperature. The principle of this temperature sensitive part is that, for example, below a certain temperature, the axis of easy magnetization of the spin-realigned temperature-sensitive magnetic material 2 is in the direction of arrow B, and above a certain temperature, the axis of easy magnetization is in the direction of arrow A. When the axis of easy magnetization is in the direction of B, the magnetic flux generated by the permanent magnet 3 passes through the yokes 4 and 4' to form a closed magnetic circuit with two spin-rearranged temperature-sensitive magnetic materials.
Although magnetic flux does not leak to the outside world, when the axis of easy magnetization is in the direction of arrow A, the closed magnetic circuit is not constituted by the magnetic material 2, so magnetic flux leaks to the outside. Therefore, if the reed switch 1 is placed near this temperature sensitive part as shown in FIG. 1, the switch can be opened and closed in accordance with the temperature.
次に気流に対応した温度を与えるためのヒータ
を、以下の如く設ける。 Next, a heater is provided as follows to provide a temperature corresponding to the air flow.
すなわち、第１図に示すようにスピン再配列感
温磁性材料２に絶縁材料であるSiO2を５μｍ蒸
着（又はスパツタ）し、その上に発熱体であるニ
クロムを500Å蒸着（又はスパツタ）し、それぞ
れ任意にAu電極を設け、抵抗値を200Ω程度に設
定したヒータ５を設ける。 That is, as shown in FIG. 1, 5 μm of SiO 2 as an insulating material is vapor-deposited (or sputtered) on the spin-rearranged temperature-sensitive magnetic material 2, and 500 Å of nichrome, which is a heating element, is vapor-deposited (or sputtered) thereon. A heater 5 with an Au electrode and a resistance value of about 200Ω is provided in each case.
この様にすれば温度感応部分とヒータ５を一体
化可能となる。 In this way, the temperature sensitive portion and the heater 5 can be integrated.
尚、ヒータ５はこの方法だけでなく厚膜抵抗を
焼付けてもよい。 Note that the heater 5 is not limited to this method, and a thick film resistor may be baked.
また、温度感応部分のスピン再配列型感温磁性
体２の代りにフエライト材料を使用してもよい。 Furthermore, a ferrite material may be used instead of the spin-rearranged temperature-sensitive magnetic material 2 in the temperature-sensitive portion.
さらにリードスイツチ１は、水銀を封入したマ
ーキユリースイツチでもよい。 Furthermore, the reed switch 1 may be a Mercury switch filled with mercury.
以上のように本考案は、スイツチの感温部分で
ある磁性材料にヒータを一体化しているため、検
出特性にばらつきを生じず、応答性も早いという
効果を有する。 As described above, the present invention has the advantage that since the heater is integrated into the magnetic material that is the temperature sensing part of the switch, there is no variation in detection characteristics and the response is quick.
第１図は、本考案の気流検出器の一実施例、第
２図は、本考案の気流検出器に係る温度感応部分
の一実施例をそれぞれ示す。
図において、１はリードスイツチ、（マーキユ
リースイツチ）、２はスピン再配列感温磁性材
料、３は永久磁石、４は継鉄、５はヒータをそれ
ぞれ示す。
FIG. 1 shows an embodiment of the air flow detector of the present invention, and FIG. 2 shows an embodiment of the temperature sensitive portion of the air flow detector of the present invention. In the figure, 1 is a reed switch (Mercury switch), 2 is a spin-rearranged temperature-sensitive magnetic material, 3 is a permanent magnet, 4 is a yoke, and 5 is a heater.
Claims (1)
またはサーマルマーキユリースイツチの感温部分
である磁性材料に直接あるいは絶縁膜を介して一
体化した磁束の変化により電気回路を開閉するフ
アン等により生ずる気流を検出する気流検出器に
おいて、 上記スイツチに近傍配置する上記感温部分が、
永久磁石と、温度により磁化容易軸が変化するス
ピン再配列型感温磁性材と、該永久磁石よりの磁
束を該スピン再配列型感温磁性材に導く継鉄と、 該スピン再配列型感温磁性材の永久磁石と対向
しない側の表面に設けられたヒータとよりなり、 所定の温度以上（もしくは所定の温度より低
温）では永久磁石より発生した磁束が継鉄を介
し、該スピン再配列型感温磁性材を通り閉磁回路
が構成され、所定の温度より低温（もしくは以
上）では該スピン再配列型感温磁性材により閉磁
回路が構成されず、磁束が外部に漏洩するように
したことを特徴とする気流検出器。[Scope of Claim for Utility Model Registration] A heater is integrated with a magnetic material that is the temperature-sensing part of a thermal reed switch for temperature detection or a thermal mercury switch, either directly or through an insulating film, and an electric circuit is opened and closed by changes in magnetic flux. In an airflow detector that detects airflow generated by a fan, etc., the temperature-sensitive part placed near the switch is
A permanent magnet, a spin-rearranged temperature-sensitive magnetic material whose easy axis of magnetization changes depending on temperature, a yoke that guides magnetic flux from the permanent magnet to the spin-rearranged temperature-sensitive magnetic material, and a spin-rearranged temperature-sensitive magnetic material. It consists of a heater installed on the surface of a warm magnetic material that does not face the permanent magnet, and when the temperature is above a predetermined temperature (or lower than a predetermined temperature), the magnetic flux generated by the permanent magnet passes through the yoke and rearranges the spins. A closed magnetic circuit is formed through the type temperature-sensitive magnetic material, and at temperatures lower than (or above) a predetermined temperature, the closed magnetic circuit is not formed by the spin-rearranged type temperature-sensitive magnetic material, and magnetic flux leaks to the outside. An airflow detector featuring:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1980033149U JPS6139970Y2 (en) | 1980-03-14 | 1980-03-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1980033149U JPS6139970Y2 (en) | 1980-03-14 | 1980-03-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56135164U JPS56135164U (en) | 1981-10-13 |
| JPS6139970Y2 true JPS6139970Y2 (en) | 1986-11-15 |
Family
ID=29628843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1980033149U Expired JPS6139970Y2 (en) | 1980-03-14 | 1980-03-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6139970Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003100370A1 (en) * | 2002-05-24 | 2003-12-04 | Bridgestone Corporation | Tire temperature sensor, tire heat deterioration detection sensor, and tire |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5316384Y2 (en) * | 1973-10-01 | 1978-04-28 |
-
1980
- 1980-03-14 JP JP1980033149U patent/JPS6139970Y2/ja not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003100370A1 (en) * | 2002-05-24 | 2003-12-04 | Bridgestone Corporation | Tire temperature sensor, tire heat deterioration detection sensor, and tire |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56135164U (en) | 1981-10-13 |
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