Magnetic Door Locking Control With Fewer Mechanical Parts
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Solution Overview
Problem
Conventional door latch mechanisms are complex, leading to prolonged manufacturing processes and increased costs due to the need for multiple parts in mechanical locking and unlocking operations.
Innovation Solution
A door locking control system utilizing a magnetic module coupled to a door frame and an armature on the door, where a magnetic force induced by a rotating magnetic body controls the locking and unlocking through a controller and detector system, simplifying the mechanism and reducing the number of parts required.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional mechanical latch mechanisms are used, then reliable door locking is achieved, but device complexity and manufacturing cost increase due to multiple mechanical parts
Solution Approach 1:
The patent replaces the conventional mechanical latch mechanism with an electromagnetic system consisting of a magnetic module and armature. The magnetic module generates magnetic force to attract and hold the armature, achieving door locking without complex mechanical components such as latches, bolts, and springs. This substitution maintains reliable door locking while significantly reducing device complexity.
Solution Approach 2:
The patent uses a rotatable magnetic body within the magnetic module that can change its magnetic polarity configuration. By rotating the magnetic body between first and second positions, the magnetic polarity is changed to either attract or repel the armature, enabling locking and unlocking operations. This parameter change approach simplifies the mechanism by using magnetic field manipulation instead of mechanical movement.
2Reliability
If conventional mechanical latch mechanisms are used, then door locking function is achieved, but manufacturing process time and cost increase
Solution Approach 1:
The electromagnetic locking system requires fewer parts and simpler assembly compared to mechanical latches. The magnetic module and armature can be manufactured using standard electromagnetic component fabrication processes, reducing manufacturing complexity and increasing production efficiency.
Solution Approach 2:
The magnetic module serves multiple functions: it provides both locking (attractive force) and unlocking (repulsive force) capabilities through a single device by simply rotating the magnetic body. This multi-functionality reduces the number of separate components needed, simplifying both manufacturing and assembly processes.
3Ease of operation
If magnetic module with rotatable magnetic body is used, then locking and unlocking control is simplified, but device structure becomes more complex
Solution Approach 1:
The patent combines the magnetic field generation and rotation control functions into a single integrated magnetic module. The rotatable magnetic body is directly coupled to the armature, merging the actuation mechanism with the magnetic field source. This integration simplifies the overall control structure despite the internal complexity of the magnetic module.
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
The system simplifies the manufacturing process and reduces costs by using magnetic forces to control locking and unlocking operations, eliminating the need for complex mechanical parts and allowing for easy current control to lock or unlock the door.
Implementation Method 1
a magnetic module provided on the door or the door frame to face the armature and operated to be fixedly brought into contact with or separated from the armature by a magnetic force induced from a change in a magnetic circuit occurring due to the rotation of a first magnetic body provided inside of the magnetic module
Implementation Method 2
The magnetic module may be further provided with a coil provided to be wound around the first contact portion and electrically connected to the controller, and the magnetic force of the coil may change in direction under the control of the controller to rotate the first magnetic body
Data Source
AI summary
A door locking control system includes an armature coupled to a door or a door frame around which the door is opened or closed, a magnetic module provided on the door or the door frame to face the armature and operated to be fixedly brought into contact with or separated from the armature by a magnetic force induced from a change in a magnetic circuit occurring due to the rotation of a first magnetic body provided inside of the magnetic module, a detector configured to detect an open state or a closed state of the door, and a controller electrically connected to the detector and configured to control the operation of the magnetic module according to the open state or the closed state of the door detected by the detector.