Wirelessly powered elevator electronic safety device

• US 10,252,884 B2
• Filed: 04/05/2016
• Issued: 04/09/2019
• Est. Priority Date: 04/05/2016
• Status: Active Grant

• Current Assignee: Otis Elevator Company (Otis Worldwide Corp.)
• Original Assignee: Otis Elevator Company (Otis Worldwide Corp.)
• Inventors: Hu, Guohong
• Primary Examiner(s): Salata, Anthony
• Application Number:
  US15/091,246
• Publication Number:
  US 20170283215A1
• Time in Patent Office: 1,099 Days
• Field of Search: 187247, 187277, 187288, 187289, 187290, 187293, 187391, 187393
• CPC Class Codes: B66B 5/04 for detecting excessive speed
• CPC Class Codes: B66B 5/22 by means of linearly-movable wedges B66B5/24 takes precedence
• CPC Class Codes: B66B 7/00 Other common features of elevators

Abstract

An elevator system including a hoistway, an elevator component disposed in the hoistway, and a power assembly disposed in the hoistway, the power assembly including a first power component disposed in the hoistway, the first power component including a first power connection, and a second power component operably coupled to the elevator component; wherein the first power component is configured to provide wireless power to the second power component.

Claims

1. An elevator system comprising:

a hoistway;

an elevator component disposed in the hoistway; and

a power assembly disposed in the hoistway, the power assembly comprising;

a first power component disposed in the hoistway, the first power component comprising a first power connection; and

a second power component operably coupled to the elevator component;

wherein the first power component is configured to provide wireless power to the second power component;

a guide rail disposed in the hoistway, the guide rail configured to engage the elevator component and direct the course of travel of the elevator component; and

a safety device operably coupled to the elevator component, the safety device configured to engage the guide rail to stop the elevator component;

wherein the second power component is operably coupled to the safety device.

2. The elevator system of claim 1, wherein the second power component is configured to connect to the first power component via a direct connection or an indirect connection.

3. The elevator system of claim 1, wherein the first power component is operably coupled to a power source.

4. The elevator system of claim 1, wherein the second power component comprises:

a second power connection;

a first power storage device operably coupled to a second power connector;

a safety actuation controller comprising a communication module, the safety actuation controller operably coupled to the first power storage device.

5. The elevator system of claim 1, wherein the first power component is operably coupled to the guide rail.

6. The elevator system of claim 1, wherein the elevator component comprises at least one of an elevator car and a counterweight.

7. The elevator system of claim 6, further comprising an elevator drive configured to impart movement to the elevator car.

8. The elevator system of claim 4, wherein the communication module is configured to wirelessly exchange safety signals with the elevator controller.

9. The elevator system of claim 4 wherein the second power component further comprises:

an electromagnetic component operably connected to the second power component, wherein the electromagnetic component is configured generate an actuation of the safety device.

10. The elevator system of claim 9, further comprising:

a magnetic brake disposed adjacent to the electromagnetic component, the magnetic brake configured to move between an engaging position and a non-engaging position based in part on a hold force.

11. The elevator system of claim 9, wherein the safety actuation controller comprises a communication module, wherein the communication module is configured to wirelessly communicate safety signals.

12. The elevator system of claim 9, wherein the first power component includes a first power connector and the second power component includes a second power connector configured to engage the first power connector.