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1. WO2020065216 - ELECTROMAGNETIC FILTERING FOR A CIRCUIT FOR CONTROLLING AN ELECTRIC MOTOR

Publication Number WO/2020/065216
Publication Date 02.04.2020
International Application No. PCT/FR2019/052259
International Filing Date 25.09.2019
IPC
H02P 7/06 2006.01
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
PCONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
7Arrangements for regulating or controlling the speed or torque of electric DC motors
06for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current
CPC
H02P 7/06
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
PCONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
7Arrangements for regulating or controlling the speed or torque of electric DC motors
06for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current
Applicants
  • VALEO SYSTEMES THERMIQUES [FR]/[FR]
Inventors
  • LAAIOUNI, Iliass
  • LAPIERRE, William
Agents
  • TRAN, Chi-Hai
Priority Data
185876825.09.2018FR
Publication Language French (FR)
Filing Language French (FR)
Designated States
Title
(EN) ELECTROMAGNETIC FILTERING FOR A CIRCUIT FOR CONTROLLING AN ELECTRIC MOTOR
(FR) FILTRAGE ÉLECTROMAGNÉTIQUE D'UN CIRCUIT DE CONTRÔLE D'UN MOTEUR ÉLECTRIQUE
Abstract
(EN)
The invention relates to a motor-control circuit (1) comprising (i) a main branch (10) allowing an electric motor (12) to be controlled via a control switch (101), and (ii) a flyback branch (11) placed to bypass the electric motor (12) in order to protect the main branch of the motor-control circuit (1), said flyback branch (11) comprising a filtering device (111) comprising at least one filtering inductor (111A) for filtering the high frequencies of an electrical current flowing through said flyback branch (11). The invention also relates to an electric motor-vehicle fan comprising such a motor-control circuit (1).
(FR)
L'invention concerne un circuit (1) de contrôle moteur comprenant (i) une branche principale (10) permettant de piloter un moteur électrique (12) par l'intermédiaire d'un commutateur de contrôle (101), et (ii) une branche de roue libre (11) placée en dérivation du moteur électrique (12) afin de protéger la branche principale du circuit (1) de contrôle moteur, ladite branche de roue libre (11) comprenant un dispositif de filtrage (111) comprenant au moins une inductance de filtrage (111A) pour filtrer les hautes fréquences d'un courant électrique traversant ladite branche de roue libre (11). L'invention concerne aussi un groupe moto-ventilateur pour véhicule automobile comprenant un tel circuit (1) de contrôle moteur.
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