JPH0250929U - - Google Patents
Info
- Publication number
- JPH0250929U JPH0250929U JP12861888U JP12861888U JPH0250929U JP H0250929 U JPH0250929 U JP H0250929U JP 12861888 U JP12861888 U JP 12861888U JP 12861888 U JP12861888 U JP 12861888U JP H0250929 U JPH0250929 U JP H0250929U
- Authority
- JP
- Japan
- Prior art keywords
- reed switch
- magnetic force
- magnet
- polarity
- turns
- 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
- 235000014676 Phragmites communis Nutrition 0.000 claims description 14
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Mechanical Operated Clutches (AREA)
- Switches That Are Operated By Magnetic Or Electric Fields (AREA)
Description
第１図は本発明によるノーマルオープン型の磁
気近接スイツチを示す構成図、第２図は第１図に
おける駆動磁石の磁力線の流れを示す図、第３図
はオン巾域の違いを示すグラフ、第４図はノーマ
ルクローズ型の磁気近接スイツチを示す構成図、
第５図は第４図における駆動磁石の磁力線の流れ
を示す図、第６図はオフ巾域の違いを示すグラフ
である。
符合の説明、１：リードスイツチ、２：バイア
ス磁石、３：駆動磁石。
FIG. 1 is a configuration diagram showing a normally open type magnetic proximity switch according to the present invention, FIG. 2 is a diagram showing the flow of magnetic lines of force of the driving magnet in FIG. 1, and FIG. 3 is a graph showing differences in on-width range. Figure 4 is a configuration diagram showing a normally closed type magnetic proximity switch.
FIG. 5 is a diagram showing the flow of the magnetic force lines of the drive magnet in FIG. 4, and FIG. 6 is a graph showing the difference in the off-width region. Explanation of codes: 1: Reed switch, 2: Bias magnet, 3: Drive magnet.
Claims (1)
に平行で両極が対向する位置に設置され、該リー
ドスイツチ１がオンする磁力より小さく、該リー
ドスイツチ１がオフする磁力より大きい磁力を該
リードスイツチ１に印加するバイアス磁石２と、 該バイアス磁石２の極性と同方向あるいは逆方
向の両方向に転換配置可能に設けられる共に、移
動して前記リードスイツチ１に接近する駆動磁石
３とから成り、 該駆動磁石３の前記リードスイツチ１に印加す
る磁力〔Ｂ１〕と、前記バイアス磁石２の前記リ
ードスイツチ１に印加する磁力〔Ｂ２〕と、前記
リードスイツチ１がオンする磁力〔Ｂ３〕とオフ
する磁力〔Ｂ４〕との関係を、該駆動磁石３の極
性を前記バイアス磁石２の極性と同方向に配置し
前記リードスイツチ１に接近した状態において｜
Ｂ１｜＞｜Ｂ３−Ｂ２｜とすると共に、該駆動磁
石３の極性を前記バイアス磁石２の極性と逆方向
に配置し前記リードスイツチ１に接近した状態に
おいて｜Ｂ１｜＞｜Ｂ２−Ｂ４｜として成る磁気
近接スイツチ。[Scope of claim for utility model registration] A reed switch 1, and a reed switch 1 near the reed switch 1.
a bias magnet 2 which is installed in a position parallel to the reed switch 1 with its poles facing each other and applies a magnetic force to the reed switch 1 that is smaller than the magnetic force that turns the reed switch 1 on and larger than the magnetic force that turns the reed switch 1 off; the reed switch 1, and a drive magnet 3 that is movable to approach the reed switch 1; The relationship between [B1], the magnetic force [B2] of the bias magnet 2 applied to the reed switch 1, the magnetic force [B3] that turns the reed switch 1 on, and the magnetic force [B4] that turns it off, is expressed by the drive magnet 3. When the polarity of the bias magnet 2 is arranged in the same direction as the polarity of the bias magnet 2 and the magnet is close to the reed switch 1, |
B1|>|B3-B2|, and with the polarity of the drive magnet 3 arranged in the opposite direction to the polarity of the bias magnet 2 and close to the reed switch 1, |B1|>|B2-B4| Consisting of a magnetic proximity switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12861888U JPH0250929U (en) | 1988-09-30 | 1988-09-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12861888U JPH0250929U (en) | 1988-09-30 | 1988-09-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0250929U true JPH0250929U (en) | 1990-04-10 |
Family
ID=31382126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12861888U Pending JPH0250929U (en) | 1988-09-30 | 1988-09-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0250929U (en) |
-
1988
- 1988-09-30 JP JP12861888U patent/JPH0250929U/ja active Pending
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