RFI suppression package for DC electric motors
AssigneeFasco DC Motors, Inc.
InventorsJohn Pajak, Christopher A. Hause, Lawrence J. Noren
Life of this patent
Estimating the term…
Abstract
A radio frequency interference suppression circuit assembly for an electric motor is provided in an easily assembled efficient package. The circuit assembly uses a case which houses a toroid inductor and feed-through capacitors which are electrically connected to the case and the toroid inductor to form a filter. Connector leads are provided to connect the package to a power input of an electric motor.
Claims6
A self-contained radio frequency interference suppression package for a direct current motor having a motor case, the package comprising:
- a container;
- a common-mode toroid inductor mounted within the container;
- at least one feed-through capacitor mounted within the container and connected to said common mode toroid inductor to form a radio frequency interference suppression circuit;
- and
- at least one electrical lead extending from the container for connecting said radio frequency interference suppression circuit to an input of the direct current motor.
A self-contained radio frequency interference suppression package for a direct current motor having a motor case, the suppression package comprising:
- an electrically conductive container attachable to the motor case;
- a common-mode toroid inductor enclosed within the container;
- at least one feed-through capacitor enclosed within the container and connected to the common-mode toroid inductor to form a radio frequency interference suppression circuit;
- and
- at least one electrical lead extending from the container for connecting the radio frequency interference suppression circuit to an input of the direct current motor.
Dependencies are inferred from the claim text.