Electromechanical Locking Device: Movable Extension for Tamper Protection
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Solution Overview
Problem
Existing electromechanical locking devices are vulnerable to manipulation and require conventional elongated keys inserted deeply, compromising security.
Innovation Solution
Incorporation of a movable extension element that mimics the function of a key, remaining within the locking device when removed, and an electromechanical actuator to control the locking mechanism, allowing for electronic authorization and enhanced tamper protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional key is used to operate the locking device, then the locking device can be operated, but the key must be inserted deep into the rotor and is elongated, compromising security against manipulation
Solution Approach 1:
The extension element serves as an intermediary component between the key and the internal locking mechanism. It transmits the operational force from the key while remaining outside the rotor, thereby protecting the sensitive internal components from direct key access and manipulation attempts.
Solution Approach 2:
The locking device is segmented into distinct functional components: the extension element that interfaces with the key, the rotor containing the locking mechanism, and the stator providing structural support. This segmentation allows the extension element to be positioned externally while still transmitting force to the internal mechanism.
2Reliability
If the extension element remains in the locking device when the key is removed, then internal components are better protected against tampering, but the device complexity increases
Solution Approach 1:
The extension element is merged with the rotor assembly, forming an integrated unit that moves together during operation. This combination simplifies the overall structure by eliminating the need for separate mounting mechanisms while still providing the benefit of extended key operation distance.
Solution Approach 2:
The extension element is designed to automatically return to its initial position when the key is removed, utilizing the elastic properties of the rotor or spring mechanisms. This self-returning capability eliminates the need for additional actuators or complex control systems to reset the extension element.
3Reliability
If electronic authorization is implemented, then security is enhanced, but the device complexity increases due to additional electronic components
Solution Approach 1:
The rotor serves multiple functions: it contains the locking mechanism, transmits rotational force, and houses the electronic authorization components. This multi-functionality reduces the need for separate dedicated components for each function, thereby limiting the increase in overall device complexity.
Solution Approach 2:
The traditional mechanical key-coding system is replaced with an electronic authorization system that uses electronic keys and sensors. This substitution eliminates the need for complex mechanical coding mechanisms while providing enhanced security through electronic verification.
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 protecting internal components from tampering and enabling the use of shorter electronic keys, ensuring only authorized users can unlock the device.
Implementation Method 1
a spring element (80), in particular a torsion spring, which interacts with the blocking element (51) in such a way that upon a movement of the blocking element (51) from the starting position to the release position
Data Source
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Figure 4
AI summary
The invention relates to an electromechanical locking device (1) for a closure element, comprising a stator (10) and a rotor (30), said rotor (30) being mounted in the stator (10). According to the invention, the locking device (1) comprises an extension element (40), wherein the extension element (40) can be moved between an insert position and a withdrawal position in the axial direction, in particular in a linear manner. The invention additionally relates to a closing device (100) comprising such a locking device (1).