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US 12,592,616 B1Granted
Servo actuator with electromagnetic interference shielding
AssigneeAnduril Industries, Inc.
InventorsRichard Anger, Jason Flahie, Riley Evers, Michael Auda, Mehran Ahmadi, Hamza Abdul-Ghani, Derek Goss, Timothy Medina, Serge Ossipian, Richard David Young
Life of this patent
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Abstract
A servo actuator comprising an EMI seal positioned between the output shaft and the housing. The EMI seal forms a ring around the output shaft and comprises a plurality of finger springs intermittently positioned around the ring. The finger springs are formed from an electrically conductive material such as beryllium copper.
Claims19
A servo actuator comprising:
- a housing having a plurality of exterior surfaces defining a cavity, one of the plurality of exterior surfaces defining an opening, the opening having an interior surface extending into the cavity of the housing in a direction orthogonal to the one of the plurality of exterior surfaces;
- a motor mounted within the cavity of the housing, the motor having a drive shaft;
- a geartrain operatively coupled to the drive shaft, the geartrain having an output shaft positioned in the opening of the housing;
- a sensor configured to monitor a position of the output shaft;
- one or more control boards electrically connected to the motor and the sensor;
- and
- a sealing ring positioned between the output shaft and the interior surface of the opening, wherein the sealing ring comprises an electrically conductive material and is configured and positioned to fill a gap between the output shaft and the interior surface of the opening, and wherein the sealing ring is configured to provide shielding from electromagnetic interference.
4 more elements
A servo actuator comprising:
- a housing having a plurality of exterior surfaces defining a first cavity and a second cavity, at least one of the plurality of exterior surfaces defining an opening, the opening having an interior surface extending into the first cavity of the housing in a direction orthogonal to the one of the plurality of exterior surfaces;
- a motor mounted within the first cavity of the housing, the motor having a drive shaft;
- a strain wave drive mounted within the first cavity of the housing and operatively coupled to the drive shaft at an anterior end, the strain wave drive having an output shaft positioned within the opening of the housing;
- a sensor mounted within the first cavity of the housing and configured to monitor an angular position of the output shaft;
- a servo driver controller board mounted within the second cavity of the housing and electrically connected to the motor and the sensor;
- a servo driver power board mounted in parallel relative to the servo driver controller board within the second cavity of the housing and electrically connected to the servo driver controller board;
- and
- a sealing ring positioned between the output shaft and the interior surface of the opening;
- wherein the sealing ring is formed of an electrically conductive material;
- and
- wherein the sealing ring is configured to provide shielding from electromagnetic interference.
8 more elements
A servo actuator comprising:
- a housing having a plurality of exterior surfaces defining a cavity, at least one of the plurality of exterior surfaces defining an opening;
- a motor mounted within the cavity of the housing, the motor having a drive shaft;
- an output shaft operatively coupled to the drive shaft and positioned within the opening of the housing;
- and
- a sealing ring positioned between the output shaft and an interior surface of the opening;
- wherein the housing and the sealing ring are formed of an electrically conductive material;
- and
- wherein the sealing ring is configured to provide shielding from electromagnetic interference.
5 more elements
Dependencies are inferred from the claim text.