EP 3871238 A1 20210901 - BALLISTIC UNIPOLAR BISTABLE ACTUATOR
Title (en)
BALLISTIC UNIPOLAR BISTABLE ACTUATOR
Title (de)
BALLISTISCHER UNIPOLARER BISTABILER AKTUATOR
Title (fr)
ACTIONNEUR BISTABLE UNIPOLAIRE DE TYPE BALISTIQUE
Publication
Application
Priority
- FR 1859948 A 20181026
- FR 2019052441 W 20191016
Abstract (en)
[origin: WO2020084220A1] The invention relates to an actuator for controlling the movement of an element between two stable positions with pulsed electrical control without a change in polarity, having: • a ferromagnetic mobile mass (2), • at least one electrically controlled wire coil (6, 6a, 6b) that is fixed with respect to the mobile mass (2), • at least two ferromagnetic poles (15a, 15b) that are fixed with respect to said mobile mass (2) and on either side of said mobile mass (2). Said actuator comprises at least one permanent magnet (3a, 3b) that attracts said mobile mass (2) in order to achieve the two stable positions, said mobile mass (2) defining, with said ferromagnetic poles (15a, 15b), at least two variable air gaps (11a, 11b, 12a, 12b) during the movement of the mobile apparatus, the magnetic flux of said permanent magnet (3a, 3b) opposing the magnetic flux generated by said at least one coil (6, 6a, 6b) regardless of the position of the mobile mass (2).
IPC 8 full level
H01F 7/122 (2006.01); F16K 31/00 (2006.01); H01F 7/14 (2006.01); H01F 7/16 (2006.01); H01F 7/18 (2006.01); H01H 51/00 (2006.01)
CPC (source: EP KR US)
H01F 1/14 (2013.01 - KR US); H01F 7/122 (2013.01 - EP KR US); H01F 7/14 (2013.01 - EP US); H01F 7/1615 (2013.01 - EP KR US); H01F 7/18 (2013.01 - EP); H01F 7/1844 (2013.01 - EP KR); H01F 7/1872 (2013.01 - EP KR US); H01F 2007/1669 (2013.01 - EP KR US); H01F 2007/1692 (2013.01 - EP KR US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2020084220 A1 20200430; CN 112912974 A 20210604; EP 3871238 A1 20210901; FR 3087935 A1 20200501; FR 3087935 B1 20210514; JP 2022505489 A 20220114; KR 102685288 B1 20240716; KR 20210082220 A 20210702; US 11657943 B2 20230523; US 2022005639 A1 20220106
DOCDB simple family (application)
FR 2019052441 W 20191016; CN 201980069597 A 20191016; EP 19808628 A 20191016; FR 1859948 A 20181026; JP 2021521749 A 20191016; KR 20217015879 A 20191016; US 201917285054 A 20191016