EP 2807733 A1 20141203 - BAND ATTENUATION/ELIMINATION FILTER FOR THE ELECTROMAGNETIC EMISSIONS OF A DC MOTOR WITH BRUSHES
Title (en)
BAND ATTENUATION/ELIMINATION FILTER FOR THE ELECTROMAGNETIC EMISSIONS OF A DC MOTOR WITH BRUSHES
Title (de)
BANDDÄMPFUNGS-/ELIMINATIONSFILTER FÜR DIE ELEKTROMAGNETISCHEN EMISSIONEN EINES GLEICHSTROMMOTORS MIT BÜRSTEN
Title (fr)
FILTRE ATTÉNUATEUR/ÉLIMINATEUR DE BANDE DES INDUCTIONS ÉLECTROMAGNÉTIQUES POUR MOTEUR À COURANT CONTINU À BALAIS
Publication
Application
Priority
- FR 1250664 A 20120124
- EP 2013051369 W 20130124
Abstract (en)
[origin: WO2013110724A1] The invention relates to a band attenuation/elimination filter for the electromagnetic emissions of a DC motor with brushes, comprising at least a first capacitive electrical impedance element (C1) and a second capacitive electrical impedance element (C2, C3), which elements are integrated into a coil electromagnetic compatibility (EMC) filter formed by at least a first reactive impedance element (L1) inserted between the positive motor power supply terminal and the positive terminal of the battery (+Bat) and a second reactive impedance element (L2) inserted between the negative motor power supply terminal and the earth of the vehicle (-Bat). According to the invention, the first capacitive electrical impedance element (C1) is connected in parallel between the positive terminal and the negative motor power supply terminal, and the second capacitive electrical impedance element (C2, C3) has a lower capacitance than that of the first capacitive impedance element (C1) and is connected in parallel between the positive terminal of the battery (+Bat) and the earth terminal of the motor (-Bat). The invention is suitable for equipment for windscreen wiper motors for any type of motor vehicle.
IPC 8 full level
H02K 11/02 (2006.01)
CPC (source: EP US)
H02K 11/02 (2013.01 - EP); H02K 11/026 (2013.01 - EP US); H02K 11/028 (2013.01 - EP); H01F 17/04 (2013.01 - EP); H01F 27/255 (2013.01 - EP); H03H 7/427 (2013.01 - EP)
Citation (search report)
See references of WO 2013110724A1
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)
FR 2986121 A1 20130726; FR 2986121 B1 20150410; CN 104170221 A 20141126; CN 104170222 A 20141126; EP 2807733 A1 20141203; EP 2807734 A1 20141203; EP 2807734 B1 20180509; JP 2015508252 A 20150316; JP 2015512179 A 20150423; JP 6234940 B2 20171122; MX 2014008925 A 20141014; MX 2014008926 A 20141024; MX 340213 B 20160630; WO 2013110724 A1 20130801; WO 2013110726 A1 20130801
DOCDB simple family (application)
FR 1250664 A 20120124; CN 201380014815 A 20130124; CN 201380014830 A 20130124; EP 13700942 A 20130124; EP 13701619 A 20130124; EP 2013051369 W 20130124; EP 2013051372 W 20130124; JP 2014553722 A 20130124; JP 2014553723 A 20130124; MX 2014008925 A 20130124; MX 2014008926 A 20130124