Title:
WATER INLET SOLENOID VALVE CAPABLE OF IMPROVING ELECTROMAGNETIC ATTRACTION AND IMPLEMENTING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2021/057409
Kind Code:
A1
Abstract:
A water inlet solenoid valve capable of improving electromagnetic attraction and an implementing method therefor. The method comprises: obtaining a plastic encapsulated stator assembly by injecting plastic to a stator assembly (102); and assembling the plastic encapsulated stator assembly and a valve body assembly comprising a movable iron core (201) together to form the water inlet solenoid valve. The plastic encapsulated stator assembly comprises: an upper magnetic conductive inner sleeve (113) and a lower magnetic conductive inner sleeve (114) mounted in a central hole of a coil assembly (103); a water insulating sleeve (117) at the inner sides of the upper magnetic conductive inner sleeve (113) and the lower magnetic conductive inner sleeve (114); a magnetic yoke (111) located outside the coil assembly (103) and connecting the upper magnetic conductive inner sleeve (113) and the lower magnetic conductive inner sleeve (114); a magnetic conductive base (121) mounted at the inner side of the upper magnetic conductive inner sleeve (113); and a plastic encapsulating layer (116) cladding the coil assembly (103) and the magnetic yoke (111). By setting the upper end face of the movable iron core (201) at an initial position not lower than the upper edge of the lower magnetic conductive inner sleeve (114) and not higher than 1/4 of the height of a gap between the upper edge of the lower magnetic conductive inner sleeve (114) and the lower edge of the upper magnetic conductive inner sleeve (113), the electromagnetic attraction of the water inlet solenoid valve is improved.
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| WO/2018/185242 | ELECTROMAGNETIC VALVE DEVICE, USE THEREOF, AND VALVE SYSTEM |
Inventors:
WANG HONGBIAO (CN)
AO LIN (CN)
AO LIN (CN)
Application Number:
PCT/CN2020/112858
Publication Date:
April 01, 2021
Filing Date:
September 01, 2020
Export Citation:
Assignee:
JIANGMEN TIANDI ELECTRICAL APPLIANCE CO LTD (CN)
International Classes:
F16K31/06
Foreign References:
| CN107725786A | 2018-02-23 | |||
| CN201221615Y | 2009-04-15 | |||
| CN102913670A | 2013-02-06 | |||
| CN102537482A | 2012-07-04 | |||
| CN207921386U | 2018-09-28 | |||
| KR20190000119U | 2019-01-15 | |||
| KR20070051110A | 2007-05-17 | |||
| US20130075634A1 | 2013-03-28 |
Other References:
See also references of EP 4036445A4
Attorney, Agent or Firm:
BEIJING YUANBEN INTELLECTUAL PROPERTY LAW OFFICE (GENERAL PARTNERSHIP) (CN)
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