Title:
FLUID CONTROL VALVE
Document Type and Number:
Japanese Patent JP2019143649
Kind Code:
A
Abstract:
To provide a fluid control valve capable of detecting the location of a valve body by one two-pole detection type Hall IC.SOLUTION: A fluid control valve includes: a valve body 13 for opening/closing a flow passage; a magnet 23 fixed to the valve body 13 so that an S pole 24 and an N pole 25 become the movement direction of the valve body 13; a two-pole detection type Hall IC 30 of the S pole and the N pole on the lateral side in the movement direction of the magnet 23; and an actuator 2 for driving the valve body 13. The two-pole detection type Hall IC 30 in which magnetic sensing part is arranged in the direction for applying magnetic flux density toward the central axis of the magnet 23 detects that the magnetic flux density of the S pole 24 or the N pole 25 when the valve body 13 is closed is equal to or greater than operation magnetic flux density, and that the magnetic flux density of the opposite pole when the valve body 13 is opened is equal to or greater than the operation magnetic flux density. Thereby, the location of the valve body 13 can be determined and confirmed.SELECTED DRAWING: Figure 7
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Inventors:
TOMITA HIDEO
SUGIYAMA MASAKI
NAGANUMA NAOTO
KATASE HIROAKI
SUGIYAMA MASAKI
NAGANUMA NAOTO
KATASE HIROAKI
Application Number:
JP2018025604A
Publication Date:
August 29, 2019
Filing Date:
February 16, 2018
Export Citation:
Assignee:
PANASONIC IP MAN CORP
International Classes:
F16K37/00
Domestic Patent References:
| JP2002238288A | 2002-08-23 | |||
| JP2002106744A | 2002-04-10 | |||
| JPS63199079U | 1988-12-21 |
Attorney, Agent or Firm:
Kenji Kamada
Koichi Nomura
Koichi Nomura