SAFETY SWITCH FOR AN ELEVATOR
DE602020062020T2Active Publication Date: 2025-11-12OTIS ELEVATOR CO
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Patent Information
- Application Number
- DE602020062020
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2020-07-16
- Publication Date
- 2025-11-12
- Estimated Expiration
- 2040-07-16
AI Technical Summary
Technical Problem
Conventional elevator systems face challenges in testing the operation of safety actuators, such as relays and transistors, which either introduce noise during stationary tests or require elevator motion interruption for functional verification.
Method used
An elevator safety circuit using transistors, particularly MOSFETs, is designed to perform a partial stroke test while the elevator is in motion, ensuring the safety circuit's functionality without interrupting operation.
Benefits of technology
The solution allows for reliable testing of safety actuators without noise interference and operational disruption, enhancing safety and user experience by ensuring the brake system operates correctly without full application.
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