Filtering and interference suppressing device for an electric motor
AssigneeValeo Systèmes d'Essuyage
InventorsFrançois DeDaran, Séverin Bruneau, Philippe Rouyer, Abdou Salembere
Life of this patent
Estimating the term…
Abstract
A device for filtering and interference suppression in an electric motor includes at least first powering brush for an armature commutator of the electric motor, a capacitor having one terminal electrically connected to a strip conductor electrically powering the first brush, and another terminal electrically connected to a ground strip conductor connected to the electric ground of the motor. The capacitor is of the filtering and interference suppression device is non-inductive.
Claims21
A filtering and interference suppression device for an electric motor comprising;
- a first powering brush for an armature commutator of the electric motor;
- a non-inductive capacitor, having a first terminal electrically connected to a strip conductor that electrically powers the first powering brush, and a second terminal electrically connected to a ground strip conductor, connected, in turn, to an electrical ground of the electric motor, wherein the non-inductive capacitor is directly attached to a circuit board including the strip conductors;
- and
- a choke connected in series on the ground strip between a ground terminal of the non-inductive capacitor and the first powering brush.
A filtering and interference suppression device for an electric motor, comprising:
- a first powering brush for an armature commutator of the electric motor,
- a non-inductive capacitor having a first terminal electrically connected to a strip conductor that electrically powers the first powering brush and a second terminal electrically connected to a ground strip conductor, the ground strip conductor connected to an electrical ground of the electric motor;
- and
- a thermal protector located on the ground strip conductor.
A filtering and interference suppression device for an electric motor, comprising:
- a first powering brush for an armature commutator of the electric motor;
- a non-inductive capacitor having a first terminal electrically connected to a strip conductor that electrically powers the first powering brush, and a second terminal electrically connected to a ground strip conductor, the ground strip conductor connected to an electrical ground of the electric motor;
- at least one other capacitor interposed between the ground strip and the power strip for the first powering brush;
- and
- at least one peak limiter connected in parallel with the non-inductive capacitor, between the ground strip conductor and the strip conductor.
Dependencies are inferred from the claim text.