EP 3764384 B1 20220831 - ELECTROMECHANICAL ACTUATOR WITH SELF-REGULATED CONTROL
Title (en)
ELECTROMECHANICAL ACTUATOR WITH SELF-REGULATED CONTROL
Title (de)
ELEKTROMECHANISCHES STELLGLIED MIT SELBSTREGULIERTER STEUERUNG
Title (fr)
ACTIONNEUR ELECTROMECANIQUE A COMMANDE AUTOREGULEE
Publication
Application
Priority
FR 1907594 A 20190708
Abstract (en)
[origin: CN112201538A] The invention relates to an electromechanical actuator comprising a control coil (5), a magnetic core (2) and a movable armature (3) which can be moved between an operating state and a rest state andwhich is returned to the rest state by means of an elastic return device (9). When the movable armature conducts a magnetic field generated by the powered coil, the movable armature is attracted by the magnetic core. Part of the leakage magnetic flux near the movable armature (3) passes through a Hall effect sensor (101) which drives a switch (102) connected in series with the control coil (5) soas to disconnect the power supply of the control coil (5) when the leakage magnetic flux exceeds a high threshold value and to supply power to the control coil (5) again when the leakage magnetic fluxis less than a low threshold value. Thus, the average value of the supply voltage of the control coil (5) is adjusted by preferably being exactly sufficient to maintain the electromechanical actuatorin the operating state.
IPC 8 full level
H01H 50/02 (2006.01); H01H 47/04 (2006.01); H01H 47/22 (2006.01)
CPC (source: CN EP)
H01H 47/001 (2013.01 - CN); H01H 47/002 (2013.01 - CN); H01H 47/02 (2013.01 - CN); H01H 47/04 (2013.01 - EP); H01H 47/22 (2013.01 - EP); H01H 47/32 (2013.01 - CN); H01H 50/021 (2013.01 - EP); H01H 2047/046 (2013.01 - EP)
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
DOCDB simple family (publication)
EP 3764384 A1 20210113; EP 3764384 B1 20220831; CN 112201538 A 20210108; CN 112201538 B 20231124; FR 3098637 A1 20210115; FR 3098637 B1 20211015
DOCDB simple family (application)
EP 20184103 A 20200704; CN 202010645308 A 20200707; FR 1907594 A 20190708