JPS6313491Y2 - - Google Patents
Info
- Publication number
- JPS6313491Y2 JPS6313491Y2 JP14590482U JP14590482U JPS6313491Y2 JP S6313491 Y2 JPS6313491 Y2 JP S6313491Y2 JP 14590482 U JP14590482 U JP 14590482U JP 14590482 U JP14590482 U JP 14590482U JP S6313491 Y2 JPS6313491 Y2 JP S6313491Y2
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- wire
- reed switch
- sensitive magnetic
- magnets
- 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
- 230000005291 magnetic effect Effects 0.000 claims description 20
- 235000014676 Phragmites communis Nutrition 0.000 claims description 14
- 238000007664 blowing Methods 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 230000005415 magnetization Effects 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 description 8
- 230000004907 flux Effects 0.000 description 5
- 239000000696 magnetic material Substances 0.000 description 3
- 230000005298 paramagnetic effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 229920003055 poly(ester-imide) Polymers 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000004043 responsiveness Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Description
【考案の詳細な説明】
本考案はリードスイツチと環状永久磁石と感温
磁性金属製線材とを用いた送風検知装置に関す
る。[Detailed Description of the Invention] The present invention relates to an air blow detection device using a reed switch, an annular permanent magnet, and a temperature-sensitive magnetic metal wire.
従来のこの種送風検知装置の一例を第１図を参
照して説明する。 An example of a conventional air blow detection device of this type will be explained with reference to FIG.
所定のキユリー点を有する状感温磁性体１の
凹部に棒状永久磁石２を内設し、永久磁石２側に
リードスイツチ３を添設して常開型（平常時接点
が開離している）温度スイツチを構成している。
この温度スイツチと抵抗発熱体４とを、リードス
イツチ３とは反対側の感温磁性体１との間に僅か
な間隙をもたせた状態にて基板（図示せず）に取
り付けて成る。 A rod-shaped permanent magnet 2 is installed inside the recess of a temperature-sensitive magnetic material 1 having a predetermined Kyuri point, and a reed switch 3 is attached to the permanent magnet 2 side to create a normally open type (contacts are open under normal conditions). It constitutes a temperature switch.
This temperature switch and the resistance heating element 4 are attached to a substrate (not shown) with a slight gap between them and the temperature-sensitive magnetic body 1 on the opposite side from the reed switch 3.
この装置は、送風のある時発熱体４からの熱は
ほとんど放散されて感温磁性体１に伝達されず、
したがつて平常時の温度スイツチと同様に接点が
開離状態にある。送風が無くなると、発熱体４か
らの熱が間隙を介し感温磁性体１に伝達されて感
温磁性体１の温度がそのキユリー点に達すること
となる。これによつて感温磁性体１が常磁性とな
るので磁石２からの磁束の大部分がリードスイツ
チ３側に流れて接点が閉成する。このリードスイ
ツチの接点の閉成で送風の停止あるいは低下を検
出することができる。 In this device, when air is blown, most of the heat from the heating element 4 is dissipated and is not transferred to the temperature-sensitive magnetic body 1.
Therefore, the contacts are in an open state, similar to a normal temperature switch. When the air is no longer blown, the heat from the heating element 4 is transferred to the temperature-sensitive magnetic body 1 through the gap, and the temperature of the temperature-sensitive magnetic body 1 reaches its Curie point. As a result, the temperature-sensitive magnetic body 1 becomes paramagnetic, so that most of the magnetic flux from the magnet 2 flows toward the reed switch 3, closing the contact. By closing the contact of this reed switch, it is possible to detect the stop or decrease of the air blowing.
この構成では、温度スイツチと発熱体４とを並
設するため寸法が大きいだけでなく、発熱体４を
必ず下側か横側にし、しかもこの配列を送風に対
して垂直になるよう方向性を考慮して設置する必
要がある。また熱伝達が間隙を介して行われるた
め応答性が悪いなどの欠点がある。 In this configuration, not only is the size large because the temperature switch and the heating element 4 are arranged side by side, but the heating element 4 is always on the bottom or side, and the orientation is such that the arrangement is perpendicular to the air blowing. It is necessary to take this into account when installing. Furthermore, since heat transfer is performed through gaps, there are drawbacks such as poor response.
したがつて、本考案の目的は、このような従来
の欠点を除去して、小型で送風に対する方向性の
制約の無い、しかも応答性の良好な送風検知装置
を提供することにある。 Therefore, an object of the present invention is to eliminate such conventional drawbacks and provide a small-sized air blowing detection device that has no restrictions on the directionality of air blowing and has good responsiveness.
本考案は感温磁性金属製線材を折り曲げ加工し
てリードスイツチの外周の両側に嵌着した２個の
環状永久磁石の外周に架設し、該線材に絶縁を施
して通電可能にして該線材を感温磁性体と発熱体
とに兼用するようにしたことを特徴とする。 In this invention, a temperature-sensitive magnetic metal wire is bent and installed around the outer periphery of two annular permanent magnets fitted on both sides of the outer periphery of a reed switch, and the wire is insulated so that it can be energized. It is characterized in that it can be used both as a temperature-sensitive magnetic material and as a heating element.
第２図は本考案の一実施例の斜視図である。 FIG. 2 is a perspective view of an embodiment of the present invention.
リードスイツチ３の外周の両側に、一定間隔を
おいて軸方向に磁化した２個の環状永久磁石５，
６を磁化方向を同方向に向けて装着している。７
は所要のキユリー点をもつ感温磁性金属よりな
り、且つ表面にポリエステルイミドなどの耐熱性
の絶縁被膜を施した線材である。所要の断面積と
長さをもつ線材７を磁石５，６の外側磁極面間と
ほぼ同じ長さ寸法にて蛇行させしかも円筒状に折
り曲げ成形して、この成形体を磁石５，６の外周
に巻きつけるように架設している。 On both sides of the outer periphery of the reed switch 3, two annular permanent magnets 5 magnetized in the axial direction are spaced at a constant interval.
6 are attached with their magnetization directions facing in the same direction. 7
is a wire rod made of a temperature-sensitive magnetic metal having the required Kyrie point and coated with a heat-resistant insulating coating such as polyesterimide on its surface. A wire rod 7 having a required cross-sectional area and length is meandered with approximately the same length as between the outer magnetic pole surfaces of the magnets 5 and 6, and then bent and formed into a cylindrical shape, and this formed body is formed around the outer circumference of the magnets 5 and 6. It is constructed so that it can be wrapped around.
次に動作を説明する。 Next, the operation will be explained.
線材７は、例えば磁石５，６の外径が６mmの場
合、直径0.6mm、長さ約300mmで発熱容量は数Ｗで
ある。線材７の端末を入力端子として電源を印加
すると線材７は発熱する。送風（例えば風速
2m／sec）がある場合、発熱量の多くが線材７の
表面から奪い去られ、線材７自体の温度はそのキ
ユリー点未満に保たれる。このため線材７は強磁
性であり、磁石５，６の外周にほぼ均等にかけわ
たされているので、磁石５，６の対向磁極間の磁
束の一部分が線材７を通り、残りがリードスイツ
チの接点部を通る。一方、磁石５，６の外側磁極
からの磁束は、リードスイツチ３のリードを通
り、結局リードスイツチ３の接点部ではこれら磁
束が互いに打ち消し合い接点は開離状態にある。 For example, when the outer diameter of the magnets 5 and 6 is 6 mm, the wire 7 has a diameter of 0.6 mm, a length of about 300 mm, and a heat generating capacity of several watts. When power is applied using the terminal of the wire 7 as an input terminal, the wire 7 generates heat. Air blowing (e.g. wind speed
2 m/sec), much of the calorific value is taken away from the surface of the wire 7, and the temperature of the wire 7 itself is kept below its Curie point. For this reason, the wire 7 is ferromagnetic and is spread almost evenly around the outer periphery of the magnets 5 and 6, so a portion of the magnetic flux between the opposing magnetic poles of the magnets 5 and 6 passes through the wire 7, and the rest passes through the contact of the reed switch. go through the department. On the other hand, the magnetic fluxes from the outer magnetic poles of the magnets 5 and 6 pass through the leads of the reed switch 3, and eventually these magnetic fluxes cancel each other out at the contact portions of the reed switch 3, so that the contacts are in an open state.
送風がないか、風速が低下（例えば1m／sec）
すると、線材７の発熱量の少ししか周囲に放散さ
れないので、線材７自体の温度が上昇する。その
温度がキユリー点に達すると、線材７は常磁性と
なるので、磁石５，６の対向磁極からの漏れ磁束
がリードスイツチ３の接点部において支配的とな
り接点が閉成する。 There is no air blowing or the wind speed is low (e.g. 1m/sec)
Then, since only a small amount of the heat generated by the wire 7 is dissipated to the surroundings, the temperature of the wire 7 itself increases. When the temperature reaches the Curie point, the wire 7 becomes paramagnetic, so that leakage magnetic flux from the opposing magnetic poles of the magnets 5 and 6 becomes dominant at the contact portion of the reed switch 3, closing the contact.
このことにより、例えばリードスイツチ３のリ
ード端子を電源を介してランプに接続することに
より、風量の低下を検知することができる。 With this, for example, by connecting the lead terminal of the reed switch 3 to a lamp via a power source, it is possible to detect a decrease in the air volume.
本考案の送風検知装置は、感温磁性線材が発熱
体を兼ねており、このため熱伝達の遅れがなく、
線材が磁石の外周に線材同士を密着せずに架設さ
れているので放熱面積が大きく、送風の僅かな変
化に対しても敏感に応答でき、また小型で消費電
力が少なくてすみ、送風に対する設置方向に制約
がないなどの多くの利点を有している。 In the air blow detection device of the present invention, the temperature-sensitive magnetic wire also serves as a heating element, so there is no delay in heat transfer.
Since the wires are installed around the outer circumference of the magnet without touching each other, the heat dissipation area is large and the wires can respond sensitively to even the slightest change in the airflow.It is also compact and consumes less power, making it easy to install against airflow. It has many advantages such as no restrictions on direction.
第１図は従来の送風検知装置の構成図、第２図
は本考案による一実施例の斜視図である。
図中、１：感温磁性体、２，５，６：永久磁
石、３：リードスイツチ、４：抵抗発熱体、７：
感温磁性金属線材。
FIG. 1 is a block diagram of a conventional airflow detection device, and FIG. 2 is a perspective view of an embodiment of the present invention. In the figure, 1: temperature-sensitive magnetic material, 2, 5, 6: permanent magnet, 3: reed switch, 4: resistance heating element, 7:
Temperature-sensitive magnetic metal wire.
Claims (1)
軸方向に磁化した２個の環状永久磁石を磁化方向
を同じにして嵌着し、感温磁性金属よりなり且つ
絶縁被膜を施した線材を上記２個の磁石間に架設
しうる長さ寸法に折り曲げ成形し、該成形体を上
記磁石の外周に取り付けると共に上記線材に通電
発熱させるようにした送風検知装置。 Two annular permanent magnets magnetized in the axial direction are fitted onto the outer periphery of the reed switch on both sides in the axial direction, and the magnetization directions are the same, and a wire made of a temperature-sensitive magnetic metal and coated with an insulating coating is attached to the two A blowing air detection device that is bent and formed to a length that can be installed between magnets, the formed body is attached to the outer periphery of the magnet, and the wire is energized to generate heat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14590482U JPS5949967U (en) | 1982-09-27 | 1982-09-27 | Air blow detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14590482U JPS5949967U (en) | 1982-09-27 | 1982-09-27 | Air blow detection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5949967U JPS5949967U (en) | 1984-04-03 |
| JPS6313491Y2 true JPS6313491Y2 (en) | 1988-04-16 |
Family
ID=30324932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14590482U Granted JPS5949967U (en) | 1982-09-27 | 1982-09-27 | Air blow detection device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5949967U (en) |
-
1982
- 1982-09-27 JP JP14590482U patent/JPS5949967U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5949967U (en) | 1984-04-03 |
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