JPH0439480U - - Google Patents
Info
- Publication number
- JPH0439480U JPH0439480U JP8177690U JP8177690U JPH0439480U JP H0439480 U JPH0439480 U JP H0439480U JP 8177690 U JP8177690 U JP 8177690U JP 8177690 U JP8177690 U JP 8177690U JP H0439480 U JPH0439480 U JP H0439480U
- Authority
- JP
- Japan
- Prior art keywords
- valve
- magnetic
- seats
- detection device
- closing detection
- 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
- 238000001514 detection method Methods 0.000 claims description 4
- 239000000696 magnetic material Substances 0.000 claims 2
Landscapes
- Indication Of The Valve Opening Or Closing Status (AREA)
Description
第１図は本考案の一実施例に係る弁の開閉検出
装置を示す概略縦断面図、第２図は第１図の磁気
センサの一例を示す平面図、第３図は磁気センサ
の他の例を示す概略斜視図、第４図は従来の弁の
開閉検出装置を示す縦断面図である。
符号の説明、２０……弁、２１……ケーシング
、２４……浮上台（第１弁座）、２５……マグネ
ツト弁座（第２弁座）、２６……流入孔、２８…
…流出孔、２９……マグネツト弁（弁体）、３０
……磁気センサ、３０Ａ……磁気抵抗素子、３０
Ｂ……ホール素子、３４……弁室、３５……壁。
FIG. 1 is a schematic vertical sectional view showing a valve opening/closing detection device according to an embodiment of the present invention, FIG. 2 is a plan view showing an example of the magnetic sensor shown in FIG. 1, and FIG. 3 is a plan view showing an example of the magnetic sensor shown in FIG. FIG. 4 is a schematic perspective view showing an example, and FIG. 4 is a longitudinal sectional view showing a conventional valve opening/closing detection device. Explanation of symbols, 20...Valve, 21...Casing, 24...Floating platform (first valve seat), 25...Magnetic valve seat (second valve seat), 26...Inflow hole, 28...
... Outlet hole, 29 ... Magnetic valve (valve body), 30
... Magnetic sensor, 30A ... Magnetoresistive element, 30
B...Hall element, 34...Valve chamber, 35...Wall.
Claims (1)
れる磁性体の第１、第２弁座と、 該第１、第２弁座間に往復移動可能に挿入され
、第１、第２弁座に選択的に磁気吸着されて流路
を開閉する磁性体の弁体と、を備えた弁の開閉検
出装置において、 前記弁体近傍に、弁体の移動に伴う磁界の変化
を電気信号に変換する磁気センサを設けて成るこ
とを特徴とする弁の開閉検出装置。[Claims for Utility Model Registration] An internally hollow casing made of a non-magnetic material, first and second valve seats made of a magnetic material disposed facing each other at a predetermined distance within the casing, and the first and second valves. A valve opening/closing detection device comprising: a magnetic valve body that is reciprocably inserted between seats and selectively magnetically attracted to first and second valve seats to open and close a flow path; 1. A valve opening/closing detection device, comprising: a magnetic sensor that converts a change in magnetic field caused by movement of a valve body into an electric signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8177690U JPH0439480U (en) | 1990-08-01 | 1990-08-01 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8177690U JPH0439480U (en) | 1990-08-01 | 1990-08-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0439480U true JPH0439480U (en) | 1992-04-03 |
Family
ID=31628013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8177690U Pending JPH0439480U (en) | 1990-08-01 | 1990-08-01 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0439480U (en) |
-
1990
- 1990-08-01 JP JP8177690U patent/JPH0439480U/ja active Pending
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