Electromechanical Locking Device Spring-Back Anti-Manipulation
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Solution Overview
Problem
Existing electromechanical locking devices are vulnerable to manipulation, as the rotation of a locking disc without proper authorization can release the locking mechanism, allowing unauthorized access.
Innovation Solution
Incorporating a spring element that interacts with the blocking element to prevent unauthorized movement by exerting varying forces, ensuring the blocking element returns to its starting position upon mechanical manipulation, and utilizing an electromechanical actuator to control the blocking element's movement between starting and release positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a spring element is added to push the blocking element back to the starting position, then protection against manipulation is improved, but device complexity increases
Solution Approach 1:
The spring element automatically pushes the blocking element back to the starting position after it has been displaced by mechanical manipulation, without requiring external intervention or continuous actuator control. This self-correcting mechanism enhances reliability while adding minimal complexity compared to continuous electronic control systems.
Solution Approach 2:
The spring element is pre-loaded to exert a restoring force that counteracts mechanical manipulation attempts. By having the spring already in place and loaded, it immediately counteracts any unauthorized displacement of the blocking element, preventing manipulation before it can succeed.
2Measurement precision
If the blocking element requires continuous actuator control to maintain position, then positioning accuracy is improved, but energy consumption increases
Solution Approach 1:
The actuator operates periodically rather than continuously - it activates to move the blocking element to the release position when authorization is provided, and the spring element handles the return to the starting position. This periodic operation significantly reduces energy consumption while maintaining positioning accuracy through the combined action of the actuator and spring.
Solution Approach 2:
The spring element provides automatic positioning feedback by pushing the blocking element back to the starting position without requiring continuous actuator intervention. This self-positioning capability eliminates the need for continuous energy-consuming control while maintaining precise positioning through the mechanical spring mechanism.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enhances security by preventing unauthorized access through mechanical manipulation, allowing for a secure locking mechanism that maintains the blocking element in its intended position without continuous actuator control.
Implementation Method 1
a spring element (80), wherein the spring element interacts with the blocking element (51) in such a way that when the blocking element (51) moves from the starting position into the release position, the spring element (80) is at least temporarily tensioned in such a way that the spring element (80) pushes the blocking element (51) back in the direction of the starting position
Data Source
AI summary
An electromechanical locking device for a closure element includes a stator, with a rotor, a locking element and a blocking element, wherein the rotor is mounted in the stator, wherein the locking element is movable between two positions, wherein a starting position and a release position can be assumed by the blocking element. In the starting position, the blocking element prevents a movement of the locking element into the second position and in the release position the blocking element enables a movement of the locking element into the second position. The locking device includes a spring element, wherein the spring element interacts with the blocking element such that when the blocking element moves from the starting position into the release position, the spring element is at least temporarily tensioned in such a way that the spring element pushes the blocking element back in the direction of the starting position.