Electromagnetic Door Lock Multi-Surface LED Status Indication
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Solution Overview
Problem
Existing electromagnetic door locks have limited visibility of lock status due to small LED lights, making it difficult to determine the door's status from a distance, which compromises the effectiveness of warning and alarm functions.
Innovation Solution
The electromagnetic door lock features light emitting means on multiple external surfaces, including LED backlight modules, an inductive component for remote sensing of the lock's status, and an audio effect system to provide clear status indications such as flashing colors, text, or voice prompts for locked, unlocked, or alert conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a small LED light is used to indicate lock status, then the device complexity is reduced, but the visibility and remote detection capability deteriorate
Solution Approach 1:
The patent transitions from a single-point LED indicator to a multi-dimensional light emission system. Light emitting means are distributed across multiple external surfaces (front, rear, and side surfaces) of the lock body, creating a three-dimensional illumination pattern that enhances visibility from various distances and angles without increasing structural complexity significantly.
Solution Approach 2:
The lock status indication system is segmented into multiple independent light emitting units positioned on different surfaces of the lock body. This segmentation allows each surface to provide localized status information, improving overall visibility and remote detection capability while maintaining device simplicity through modular implementation.
2Loss of information
If light emitting means are added to multiple surfaces, then the visibility and alert function are improved, but the device complexity increases
Solution Approach 1:
The light emitting means serve multiple functions simultaneously: they indicate lock status (locked/unlocked), provide visual alerts (flashing patterns), and enable remote detection from various angles. This multi-functionality reduces the need for separate components for each function, thereby limiting the increase in device complexity while maximizing information visibility.
Solution Approach 2:
The patent combines multiple light emitting units into a unified status indication system where all surfaces work together to convey lock status information. This merging approach consolidates the control logic and power supply requirements, preventing exponential growth in device complexity despite the addition of multiple emission points.
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 visibility and functionality by allowing remote determination of the door's status and providing clear alerts, improving user awareness and integration with security systems.
Implementation Method 1
The light emitting means may include an LED
Implementation Method 2
The light emitting means may include a luminescent light emitter
Implementation Method 3
The lock may further include an inductive component which controls operation of the light emitting means in response to changes in magnetic field strength
Implementation Method 4
An electromagnetic lock system employing an electromagnetic lock which magnetically bonds with an armature plate
Data Source
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AI summary
An electromagnetic door lock is described which includes at least two external generally planar surfaces and light emitting means; the light emitting means indicates the status of the lock and is arranged to emit light from the at least two external surfaces.