JPH062114U - Proximity switch for position and temperature detection - Google Patents
Proximity switch for position and temperature detectionInfo
- Publication number
- JPH062114U JPH062114U JP3782392U JP3782392U JPH062114U JP H062114 U JPH062114 U JP H062114U JP 3782392 U JP3782392 U JP 3782392U JP 3782392 U JP3782392 U JP 3782392U JP H062114 U JPH062114 U JP H062114U
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- permanent magnet
- reed switch
- switch
- sensitive magnetic
- 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.)
- Pending
Links
Landscapes
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Switches That Are Operated By Magnetic Or Electric Fields (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
(57)【要約】
【目的】 永久磁石の動作距離の変化に対する感温磁性
体の動作温度の変化が小さく、かつ、小型で安価な位置
および温度検出用近接スイッチを提供する。
【構成】 リードスイッチ１を感温磁性体２で囲み、永
久磁石３の着磁方向をリードスイッチ１の長軸と略平行
とし、かつ、永久磁石３の移動方向Ａをリードスイッチ
１の長軸に対し直角方向とする。
(57) [Summary] [Object] To provide a small-sized and inexpensive proximity switch for detecting position and temperature, in which a change in operating temperature of a temperature-sensitive magnetic material is small with respect to a change in operating distance of a permanent magnet. [Structure] The reed switch 1 is surrounded by a temperature-sensitive magnetic body 2, the magnetizing direction of the permanent magnet 3 is substantially parallel to the major axis of the reed switch 1, and the moving direction A of the permanent magnet 3 is the major axis of the reed switch 1. To the right angle to.
Description
【０００１】[0001]
本考案は、リードスイッチと組み合わされる感温磁性体および永久磁石で構成 される位置および温度検知用近接スイッチに関する。 The present invention relates to a position and temperature detection proximity switch composed of a temperature-sensitive magnetic material and a permanent magnet combined with a reed switch.
【０００２】[0002]
従来の位置および温度検出用近接スイッチでは、図６および図７に示すように 、永久磁石３の磁極面以外を感温磁性体２で囲み、リードスイッチ１の長軸と直 角方向に移動させることによって、感温磁性体２のキュリー温度前後の温度と位 置により、リードスイッチ１の接点を開閉させるように構成されている。 In the conventional position and temperature detecting proximity switch, as shown in FIGS. 6 and 7, the magnetic pole surface of the permanent magnet 3 other than the magnetic pole surface is surrounded by the temperature-sensitive magnetic body 2 and moved in a direction perpendicular to the major axis of the reed switch 1. As a result, the contact point of the reed switch 1 is opened and closed depending on the temperature and the position of the temperature-sensitive magnetic body 2 around the Curie temperature.
【０００３】 ここで、位置および温度検出用近接スイッチは、温度が高く、かつ、リードス イッチ１と永久磁石３とのギャップ（動作距離Ｂ）が小さい時のみ異常信号を発 生するセンサーをいう。Here, the position and temperature detecting proximity switch is a sensor that generates an abnormal signal only when the temperature is high and the gap (operating distance B) between the lead switch 1 and the permanent magnet 3 is small.
【０００４】 従って、一般に、リードスイッチ１と永久磁石３及び感温磁性体２の組み合わ せによる位置および温度検出用近接スイッチに求められる特性は、温度と位置の 両方が異常の時に、信号を発生することにある。Therefore, generally, the characteristics required for a position and temperature detection proximity switch by combining the reed switch 1, the permanent magnet 3 and the temperature sensitive magnetic body 2 are such that a signal is generated when both the temperature and the position are abnormal. To do.
【０００５】[0005]
ところで、従来の位置および温度検出用近接スイッチは、前述したように、永 久磁石３の磁極面以外が感温磁性体２で囲まれているため、リードスイッチ１の 接点を開閉させる永久磁石３の動作距離Ｂ（図５）の変化に対する、リードスイ ッチ１の接点を開閉させる感温磁性体２の動作温度の変化が大きい（図４）。 By the way, in the conventional position and temperature detecting proximity switch, as described above, the permanent magnet 3 for opening and closing the contact of the reed switch 1 is surrounded by the temperature sensitive magnetic body 2 except for the magnetic pole surface of the permanent magnet 3. The change in the operating temperature of the temperature-sensitive magnetic body 2 that opens and closes the contact of the reed switch 1 with respect to the change in the operating distance B (Fig. 5) is large (Fig. 4).
【０００６】 このため、従来の位置および温度検出用近接スイッチでは、感温磁性体２の動 作設定温度公差を狭めると、永久磁石３の移動可能範囲が非常に狭くなる欠点が あった。Therefore, in the conventional position and temperature detection proximity switch, there is a drawback in that the movable range of the permanent magnet 3 becomes extremely narrow when the operation set temperature tolerance of the temperature-sensitive magnetic body 2 is narrowed.
【０００７】 本考案の課題は、永久磁石の動作距離の変化に対する感温磁性体の動作温度の 変化が小さく、かつ、小型で安価な位置および温度検出用近接スイッチを提供す ることにある。An object of the present invention is to provide a small-sized and inexpensive position and temperature detection proximity switch, in which the change in the operating temperature of the temperature-sensitive magnetic body with respect to the change in the operating distance of the permanent magnet is small.
【０００８】[0008]
本考案は、上述の課題を解決するために、感温磁性体と永久磁石およびリード スイッチの組み合わせによる位置および温度検出用近接スイッチにおいて、上記 リードスイッチを上記感温磁性体で囲み、上記永久磁石の着磁方向を上記リード スイッチの長軸と略平行とし、且つ、永久磁石の移動方向を上記リードスイッチ の長軸に対し直角方向とした構成とする。 SUMMARY OF THE INVENTION In order to solve the above problems, the present invention provides a proximity switch for detecting a position and temperature by combining a temperature-sensitive magnetic body with a permanent magnet and a reed switch. The magnetizing direction is substantially parallel to the major axis of the reed switch, and the moving direction of the permanent magnet is perpendicular to the major axis of the reed switch.
【０００９】[0009]
本考案によれば、リードスイッチを囲むように上記感温磁性体が配置されてい るので、キュリー温度（動作温度）より低い場合における感温磁性体の透磁率が 大きくなり、リードスイッチへの漏水磁束が減少される。 According to the present invention, since the temperature-sensitive magnetic body is arranged so as to surround the reed switch, the magnetic permeability of the temperature-sensitive magnetic body increases when the temperature is lower than the Curie temperature (operating temperature), and water leakage to the reed switch occurs. The magnetic flux is reduced.
【００１０】[0010]
以下、本考案の実施例を図によって詳細に説明する。 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
【００１１】 本実施例における位置および温度検出用近接スイッチは、図１および図２に示 すように、感温磁性体２が、リードスイッチ１の周囲を囲むように配設されてい る。永久磁石３は、リードスイッチ１の長軸（図２において左右方向）に対して 、略平行に着磁されている。さらに、この永久磁石３の移動方向Ａは、リードス イッチ１の長軸に対して、直角方向に移動するように構成されている。As shown in FIGS. 1 and 2, in the proximity switch for detecting the position and temperature in the present embodiment, the temperature-sensitive magnetic body 2 is arranged so as to surround the reed switch 1. The permanent magnet 3 is magnetized substantially parallel to the major axis of the reed switch 1 (left-right direction in FIG. 2). Further, the moving direction A of the permanent magnet 3 is configured to move in a direction perpendicular to the long axis of the lead switch 1.
【００１２】 このリードスイッチ１の接点は、感温磁性体２のキュリー温度前後の温度と位 置により開閉される。The contacts of the reed switch 1 are opened and closed depending on the temperature and the position of the temperature-sensitive magnetic body 2 around the Curie temperature.
【００１３】 本考案による位置および温度検出用近接スイッチでは、キュリー温度（動作温 度）より低い場合、感温磁性体２の透磁率が大きくなるので、リードスイッチ１ への漏水磁束が少なくなる。従って、この位置および温度検出用近接スイッチは 、キュリー温度に達すると、感温磁性体２の透磁率が小さくなるので、リードス イッチ１への漏水磁束が多くなる。In the proximity switch for position and temperature detection according to the present invention, when the temperature is lower than the Curie temperature (operating temperature), the magnetic permeability of the temperature-sensitive magnetic body 2 is increased, so that the leakage magnetic flux to the reed switch 1 is reduced. Therefore, in this position and temperature detection proximity switch, when the Curie temperature is reached, the magnetic permeability of the temperature-sensitive magnetic body 2 becomes small, so that the leakage magnetic flux to the lead switch 1 increases.
【００１４】 図４は、本考案による位置および温度検出用近接スイッチ（図３）の動作距離 Ｂのデータ例と、従来の位置および温度検出用近接スイッチ（図５）の動作距離 Ｂのデータ例とを比較したグラフである。FIG. 4 is a data example of the operating distance B of the proximity switch for position and temperature detection (FIG. 3) and a data example of the operating distance B of the conventional proximity switch for position and temperature detection (FIG. 5) according to the present invention. It is the graph which compared with.
【００１５】 このグラフからも明らかなように、本考案による位置および温度検出用近接ス イッチでは、キュリー温度付近での感温磁性体２の透磁率が小さくなるので、リ ードスイッチ１の接点を開閉させる永久磁石３の動作距離Ｂの変化に対する、リ ードスイッチ１の接点を開閉させる感温磁性体２の動作温度の変化が、従来のそ れよりも小さくなる。As is clear from this graph, in the proximity switch for position and temperature detection according to the present invention, since the magnetic permeability of the temperature-sensitive magnetic body 2 near the Curie temperature becomes small, the contact of the lead switch 1 is opened and closed. The change in the operating temperature of the temperature-sensitive magnetic body 2 for opening and closing the contact of the lead switch 1 with respect to the change in the operating distance B of the permanent magnet 3 is smaller than that in the conventional case.
【００１６】 従って、本考案の位置および温度検出用近接スイッチでは、感温磁性体２の動 作設定温度公差を狭めても、永久磁石３の移動可能範囲を非常に大きくでき、図 ３に示すように、永久磁石３の動作距離Ｂを従来のそれよりも小さくできる。Therefore, with the proximity switch for position and temperature detection of the present invention, the movable range of the permanent magnet 3 can be made very large even if the operating set temperature tolerance of the temperature-sensitive magnetic body 2 is narrowed, as shown in FIG. Thus, the operating distance B of the permanent magnet 3 can be made smaller than that of the conventional one.
【００１７】[0017]
本考案によれば、リードスイッチの接点を開閉させる永久磁石の動作距離の変 化に対するリードスイッチの接点を開閉させる感温磁性体の動作温度の変化を小 さくできるので、リードスイッチの接点を開閉させる永久磁石の動作距離を小さ くできる。 According to the present invention, it is possible to reduce the change in the operating temperature of the temperature-sensitive magnetic body that opens and closes the contact of the reed switch with respect to the change in the operating distance of the permanent magnet that opens and closes the contact of the reed switch. The operating distance of the permanent magnet can be reduced.
【００１８】 また、本考案によれば、位置および温度検出用近接スイッチを小型に構成でき 、その取り付けスペースを少なくできるので、そのコストが安価となる。Further, according to the present invention, the position and temperature detecting proximity switch can be made compact and the mounting space can be reduced, so that the cost thereof can be reduced.
【図１】本考案の実施例の外観を示す斜視図である。FIG. 1 is a perspective view showing the appearance of an embodiment of the present invention.
【図２】本考案の実施例の概略断面図である。FIG. 2 is a schematic sectional view of an embodiment of the present invention.
【図３】本考案の実施例の動作を説明するための概略断
面図である。FIG. 3 is a schematic cross-sectional view for explaining the operation of the embodiment of the present invention.
【図４】本考案の実施例と従来例との動作距離のデータ
例を比較して示したグラフである。FIG. 4 is a graph showing a comparison of data examples of operating distance between the embodiment of the present invention and the conventional example.
【図５】従来例の動作を説明するための概略断面図であ
る。FIG. 5 is a schematic cross-sectional view for explaining the operation of the conventional example.
【図６】従来例の外観を示す斜視図である。FIG. 6 is a perspective view showing the appearance of a conventional example.
【図７】従来例の概略断面図である。FIG. 7 is a schematic cross-sectional view of a conventional example.
１ リードスイッチ ２ 感温磁性体 ３ 永久磁石 Ａ 移動方向 Ｂ 動作距離 1 Reed switch 2 Temperature-sensitive magnetic body 3 Permanent magnet A Moving direction B Operating distance
Claims (1)
チの組み合わせによる位置および温度検出用近接スイッ
チにおいて、上記リードスイッチを上記感温磁性体で囲
み、上記永久磁石の着磁方向を上記リードスイッチの長
軸と略平行とし、かつ、上記永久磁石の移動方向を上記
リードスイッチの長軸に対し直角方向としたことを特徴
とする位置および温度検出用近接スイッチ。1. A proximity switch for detecting a position and a temperature, which comprises a combination of a temperature-sensitive magnetic body, a permanent magnet and a reed switch, wherein the reed switch is surrounded by the temperature-sensitive magnetic body, and the magnetizing direction of the permanent magnet is the reed switch. Position and temperature detection proximity switch, wherein the permanent magnet is substantially parallel to the long axis of the reed switch and the moving direction of the permanent magnet is perpendicular to the long axis of the reed switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3782392U JPH062114U (en) | 1992-06-04 | 1992-06-04 | Proximity switch for position and temperature detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3782392U JPH062114U (en) | 1992-06-04 | 1992-06-04 | Proximity switch for position and temperature detection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH062114U true JPH062114U (en) | 1994-01-14 |
Family
ID=12508246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3782392U Pending JPH062114U (en) | 1992-06-04 | 1992-06-04 | Proximity switch for position and temperature detection |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH062114U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52107606A (en) * | 1976-03-06 | 1977-09-09 | Takuo Mochizuki | Simlified liquid pumping means |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0498134A (en) * | 1990-08-17 | 1992-03-30 | Nec Corp | Overheat monitoring sensor structure using thermosensitive magnetic material |
-
1992
- 1992-06-04 JP JP3782392U patent/JPH062114U/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0498134A (en) * | 1990-08-17 | 1992-03-30 | Nec Corp | Overheat monitoring sensor structure using thermosensitive magnetic material |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52107606A (en) * | 1976-03-06 | 1977-09-09 | Takuo Mochizuki | Simlified liquid pumping means |
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| Date | Code | Title | Description |
|---|---|---|---|
| A02 | Decision of refusal |
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