Magnetic Fastening for LED Module Assembly
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Solution Overview
Problem
Existing LED display devices face challenges in easy transferability and installation, particularly for large indoor or outdoor displays, as they require efficient and quick assembly and disassembly methods without compromising the integrity of the modules.
Innovation Solution
The proposed LED display device employs a magnetic fastening system where first fastening members on the LED module are magnetized to either the N- or S-pole, interacting with corresponding second fastening members on the front bracket, allowing for easy attachment and detachment using attractive or repulsive forces, facilitated by a guide member and shock-absorbing components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional mechanical fastening methods are used for LED modules, then assembly strength is sufficient, but assembly time increases and ease of operation deteriorates
Solution Approach 1:
The patent replaces traditional mechanical fastening systems (screws, clips, or other physical fasteners) with a magnetic fastening system. The magnetic fastening members generate magnetic attraction forces to hold LED modules in place, eliminating the need for complex mechanical assembly operations. This substitution dramatically reduces assembly time and improves ease of operation while maintaining sufficient assembly strength through controlled magnetic forces.
Solution Approach 2:
The patent utilizes changes in magnetic field parameters (strength, polarity, distribution) to control the fastening and release of LED modules. By adjusting magnetic field parameters through the magnetic fastening members, the system can quickly transition between assembled and disassembled states without mechanical intervention, resolving the contradiction between assembly strength and assembly time.
2Ease of operation
If magnetic fastening members are added to LED modules, then ease of operation improves, but device complexity increases
Solution Approach 1:
The patent divides the magnetic fastening system into separate, modular magnetic fastening members that can be independently positioned on the LED module and front bracket. This segmentation allows the magnetic components to be added as discrete elements rather than integrating complexity into the entire structure, thereby improving ease of operation while minimizing increases in overall device complexity.
Solution Approach 2:
The magnetic fastening members serve multiple functions: they provide fastening force, enable easy assembly and disassembly, and can be positioned at multiple locations simultaneously. This multi-functionality reduces the need for separate components for different purposes, thereby improving ease of operation without proportionally increasing device complexity.
3Reliability
If multiple first fastening members are used on LED module, then reliability of attachment improves, but manufacturing cost increases
Solution Approach 1:
The patent positions multiple first magnetic fastening members at different locations on the LED module to distribute the attachment load and improve reliability. By segmenting the magnetic fastening function across multiple discrete members rather than relying on a single complex fastening mechanism, the system achieves higher attachment reliability while keeping individual components simple and cost-effective to manufacture.
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 magnetic assembly structure enhances the ease of assembly and disassembly, improves after-service quality, reduces assembly time, and ensures secure attachment and detachment of LED modules, making it suitable for large-scale and flexible display setups.
Implementation Method 1
a first fastening member located on a rear face of the LED module and magnetized to one of N- or S-poles by external magnetic force
Implementation Method 2
a second fastening member combined by magnetic force at a location corresponding to the first fastening member
Implementation Method 3
The second fastening member includes a first magnet configured to be linearly moved according to a polarity of the first fastening member
Data Source
Figure 1
Figure 2a
Figure 2b
AI summary
A display device includes a LED module including: a circuit board; a plurality of LEDs mounted on the circuit board; and at least one first fastening member provided on a first face of the circuit board, the at least one first fastening member being magnetized to one of a N-pole and a S-pole; and a bracket configured to accommodate the LED module therein and comprising at least one second fastening member, the at least one first fastening member and the at least one second fastening member being fastened by magnetic force. The second fastening member includes a first magnet configured to move linearly based on a polarity of the at least one first fastening member.