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US 12,334,856 B2Granted
Linear actuator and heating method
AssigneeEwellix AB
InventorsLarsson Reine, DagArne Rörvik
Life of this patent
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Abstract
A linear actuator and a method for heating a linear actuator. An electric motor is configured to generate rotational motion in a first operating mode of the linear actuator. A transmission mechanism is configured to convert the rotational motion generated by the electric motor into translational motion. The linear actuator is further configured to generate heat in a second operating mode.
Claims17
A linear actuator, comprising:
- an electric motor configured to generate rotational motion in a first operating mode of the linear actuator;
- a transmission mechanism configured to convert the rotational motion generated by the electric motor into translational motion;
- and
- wherein the linear actuator is configured to generate heat in a second operating mode without the electric motor generating the rotational motion, and to switch from the second operating mode to a first operating mode when a temperature of the linear actuator reaches or exceeds a second predetermined temperature threshold.
1 more element
A method for heating a linear actuator, the method which comprises:
- in a first operating mode of the linear actuator, generating a rotational motion by electric motor and transforming the rotational motion into a translational motion by way of a transmission mechanism;
- and
- in a second operating mode, controlling the linear actuator to generate heat without the electric motor generating a rotational motion;
- and
- switching from the second operating mode to a first operating mode when a temperature of the linear actuator reaches or exceeds a second predetermined temperature threshold.
2 more elements
Dependencies are inferred from the claim text.