Solenoid valve drive control device and solenoid valve comprising solenoid valve drive control device
US10711912B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 3, 2016 |
| Grant date | Jul 14, 2020 |
| Priority date | — |
| Expiry date | Aug 6, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F2007/1888
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
(Problem)The invention is to provide to a solenoid valve drive control device, in which though the magnetic path is normally composed (i.e. the plunger is attached to the attracting member), it is never determined by mistake as the dropout, and it is never entered into the reabsorption mode of the plunger.(Resolution Approach)The invention is a solenoid valve drive control device of the invention, in which by controlling of the zero cross timing generation device 72, after application of the electric current to the solenoid 66 is started at zero cross timing by the switching device 68, when the current value that flows to the solenoid 66 detected by the electric current sensing device 78 reaches the circuit protection electric current value Ic (αA), a stabilization mode that repeats the ON-OFF cycle plural times (four times of the total in the Embodiment of FIG. 4), in which application of the electric current to the solenoid 66 is interrupted by the switching means 84, is operated (see A5-A8 in FIG. 4).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.