Electronic safety actuator and method of condition or state detection
AssigneeOtis Elevator Company
InventorJavier Munoz Sotoca
Life of this patent
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Abstract
An electronic safety actuator (1) for an elevator safety brake, includes a first solenoid (2), a magnet (3), movable by the first solenoid (2) between a first position proximate to the first solenoid (2) and a second position distal from the first solenoid (2) a second solenoid (6) and a detector (8). The detector (8) is arranged to apply an electrical signal to one of the first solenoid (2) and the second solenoid (6), and to detect an electrical signal induced in the other of the first solenoid (2) and the second solenoid (6) as a result of the applied electrical signal. There is also provided a method of detecting a condition or state of the first solenoid (2) or the magnet (3).
Claims15
An electronic safety actuator (1) for an elevator safety brake, comprising:
- a first solenoid (2);
- a magnet (3), movable by the first solenoid (2) between a first position proximate to the first solenoid (2) and a second position distal from the first solenoid (2);
- a second solenoid (6);
- and
- a detector (8) arranged to apply an electrical signal to one of the first solenoid (2) and the second solenoid (6), and to detect an electrical signal induced in the other of the first solenoid (2) and the second solenoid (6) as a result of the applied electrical signal.
A method of detecting a condition or state of a first solenoid (2) or a magnet (3) of an electronic safety actuator (1) for an elevator safety brake, the magnet (3) being movable by the first solenoid (2) between a first position proximate to the first solenoid (2) and a second position distal from the first solenoid (2), comprising:
- applying an electrical signal to the first solenoid (2) or a second solenoid (6);
- detecting an electrical signal induced in the other of the first solenoid (2) and the second solenoid (6) as a result of the applied electrical signal;
- and
- determining the condition or state based on the detected electrical signal.
Dependencies are inferred from the claim text.