Magnetic Rotary Knob Lock for Fast LED Module Maintenance
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Solution Overview
Problem
The disassembly and installation of LED modules using screws are tedious, consuming significant labor and materials due to the complexity of the fixing method in the LED display industry.
Innovation Solution
A rotary knob lock with a magnetically attracted maintenance tool that simplifies the locking and unlocking process by using a lock body with a larger head part and a limit part, and a second magnet in the maintenance tool to generate torque for rotation, allowing easy fixing and disassembly of the LED display module.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If screws are used to fix the LED module on the cabinet, then the LED module can be securely fixed, but the disassembly and installation become tedious and consume significant labor and materials
Solution Approach 1:
The patent replaces the traditional mechanical screw-fixing system with a magnetic field-based locking system. The first magnet in the rotary knob lock and second magnet in the maintenance tool create magnetic attraction forces that secure the LED module without requiring screws, thereby maintaining fixing reliability while dramatically improving ease of operation for disassembly and installation
Solution Approach 2:
The patent introduces magnets as intermediary elements between the rotary knob lock and maintenance tool. These magnets serve as mediators that transmit holding forces through magnetic fields, enabling secure fixation without direct mechanical contact or screw threads, thus resolving the contradiction between secure fixing and easy disassembly
2Ease of operation
If magnets are used in the rotary knob lock and maintenance tool, then the locking and unlocking operation becomes easy, but the device complexity increases due to additional magnetic components
Solution Approach 1:
The patent designs the rotary knob lock to serve multiple functions: the first magnet provides both locking (through magnetic attraction) and unlocking (through rotational torque) capabilities. The single rotary knob mechanism integrates both locking and unlocking operations, reducing device complexity while maintaining ease of operation
Solution Approach 2:
The patent merges the locking and unlocking functions into a single rotary knob mechanism. The first magnet and rotary knob are combined into one integrated component, and the maintenance tool combines the second magnet with the operating handle, reducing the number of separate parts and simplifying the overall device structure
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 solution provides a simple and efficient method for locking and unlocking the LED display module, reducing labor and material consumption, making maintenance more convenient and time-efficient.
Implementation Method 1
The first magnet and the second magnet are attracted together for opposite poles, thus the body of the maintenance tool is aligned with the lock body of the rotary knob lock and magnetically attracted to each other
Data Source
AI summary
Disclosed are a rotary knob lock, a maintenance tool and an LED display. The rotary knob lock includes a lock body, the lock body includes a head part and a limit part, a diameter of the head part is larger than a diameter of the limit part, the head part is provided with a first magnet, the limit part is provided with a limit block; the maintenance tool includes a body, the body is provided with a second magnet inside, the second magnet and the first magnet of the rotary knob lock are magnetically attracted to each other; the LED display includes an LED display module and a cabinet, the LED display module is provided with a rotary knob lock, the cabinet is provided with an avoidance hole, when the LED display module is mounted on the cabinet, the first magnet and limit block are located on both sides.