Door Handle Spindle Magnet Actuation Detection
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Solution Overview
Problem
Electronic door locks lack effective mechanisms for detecting the actuation of door handles, which is crucial for security and access control applications, especially in monitoring and managing access rights.
Innovation Solution
A system comprising a door handle actuator, a spindle, a connecting element, and a magnet, where the magnet is positioned within or adjacent to the connecting element or spindle, allowing for detection of actuation through a sensor, enabling the monitoring of door handle movement and position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If electronic locks use push-buttons or keypads for authentication, then access control security is improved, but the ability to detect door handle actuation is lost
Solution Approach 1:
The patent replaces traditional mechanical detection methods with a magnetic field-based detection system. A magnet is attached to the door handle spindle, and a magnetic sensor (such as a Hall effect sensor) detects the magnet's position and movement. This substitution allows the electronic lock system to detect door handle actuation without relying on mechanical switches or contacts, thereby maintaining security while enabling actuation detection.
Solution Approach 2:
The patent introduces a magnet as an intermediary element attached to the door handle spindle. This magnet serves as a mediator between the mechanical movement of the door handle and the electronic sensor system. The magnetic field generated by the magnet allows non-contact detection of the spindle's position and movement, enabling the system to monitor door handle actuation while maintaining the integrity of the electronic authentication mechanism.
2Difficulty of detecting and measuring
If a magnet is added to the door handle spindle or connecting element, then actuation detection capability is improved, but device complexity increases
Solution Approach 1:
The patent designs the magnet to serve multiple functions: it acts as a detection target for the magnetic sensor, provides positional reference for the door handle spindle, and can potentially serve as a component in the connecting element or back plate assembly. By making the magnet multi-functional, the patent minimizes the increase in device complexity while maximizing the detection capability.
Solution Approach 2:
The patent integrates the magnet into existing door handle components such as the connecting element or back plate assembly. Rather than adding a completely separate detection system, the magnet is merged with components that already exist in the door handle mechanism. This integration approach reduces the overall complexity increase by reusing existing structural elements.
3Ease of manufacture
If the magnet is positioned within the connecting element, then manufacturing simplicity is improved, but detection precision may be reduced
Solution Approach 1:
The patent carefully selects and optimizes parameters such as the magnet's dimensions, magnetic strength, and positioning relative to the sensor. By adjusting these parameters, the system achieves adequate detection precision even when the magnet is positioned within the connecting element. The magnet's field strength and distance to the sensor are calibrated to ensure reliable detection while maintaining manufacturing simplicity.
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
This solution provides a reliable method for detecting door handle actuation, enhancing security and access control by allowing only authorized access and enabling the tracking of usage patterns, while being adaptable to existing door handle systems.
Implementation Method 1
a magnet, wherein the magnet is configured to move when the door handle is actuated
Data Source
Figure 1
Figure 2a~2c
Figure 3a~3c
AI summary
There is disclosed a spindle for a handle, for example a door handle, comprising a rod, and a magnet, wherein the magnet is positioned adjacent to, or within, the rod.