LED Display Module Locking Mechanism for Secure Maintenance
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Solution Overview
Problem
Existing LED display devices face issues where the display module falls due to separation from the box body during maintenance, primarily due to the pushing force from the adapter plate exceeding the magnetic attraction force.
Innovation Solution
The LED display device incorporates a rectangle framework with a strip-like gap, an adapter plate assembly with a lock mechanism, and a display module mounted via a magnetic attraction structure. The lock mechanism includes a rotary shaft with first and second lock tongues that correspond to strip-shaped lock holes, allowing the adapter plate to fit the display module securely, preventing it from falling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the adapter plate is detachably arranged on the rear side of the box body to facilitate maintenance, then the ease of operation is improved, but the display module may fall due to separation from the box body when pushing force exceeds magnetic attraction force
Solution Approach 1:
The locking mechanism is segmented into multiple lock tongues (first lock tongue and second lock tongue) that can independently engage with corresponding lock holes. This segmentation allows the system to provide multiple locking points, distributing the securing force and preventing display module detachment while maintaining ease of maintenance access.
Solution Approach 2:
The lock tongues are preliminarily positioned to engage with the lock holes before the adapter plate is fully installed or during the maintenance process. This preliminary locking action prevents the display module from falling due to magnetic attraction force insufficiency, while still allowing maintenance personnel to access the rear side for adapter plate maintenance.
2Reliability
If a lock mechanism is added to prevent display module detachment, then the reliability is improved, but the device complexity increases
Solution Approach 1:
The lock mechanism is merged with the existing adapter plate assembly structure. The lock tongues are integrated into the adapter plate or fixed plate, and the lock holes are formed on the display module housing. This merging approach provides reliable locking functionality without adding separate, complex locking components, thus improving reliability while minimizing increases in device complexity.
Solution Approach 2:
The lock tongues act as intermediaries between the adapter plate assembly and the display module. These simple mechanical elements mediate the connection, providing reliable mechanical locking that supplements the magnetic attraction force without requiring complex locking mechanisms or additional actuation systems.
3Reliability
If the lock tongue engages with the lock hole to prevent falling, then the display module stability is improved, but the adapter plate maintenance difficulty increases
Solution Approach 1:
The lock mechanism is designed to be dynamic rather than fixed. The lock tongues can be disengaged from the lock holes during maintenance operations, allowing the adapter plate to be removed for maintenance. After maintenance, the lock tongues can re-engage with the lock holes to restore stability. This dynamic capability maintains both reliability during operation and ease of repair during maintenance.
Solution Approach 2:
The lock mechanism is designed to be self-engaging and self-disengaging through simple manual operation. During normal operation, the lock tongues automatically engage with the lock holes to prevent display module detachment. During maintenance, the lock tongues can be easily disengaged without requiring additional tools or complex procedures, allowing the adapter plate to be removed for maintenance and then reinstalled with automatic re-engagement of the locking mechanism.
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 effectively secures the display module on the rectangle framework, preventing it from falling during maintenance, and simplifies the maintenance process by reducing the need for multiple tools, resulting in a more secure and efficient LED display device.
Implementation Method 1
a display module, mounted on a front side of the rectangle framework through a magnetic attraction structure
Data Source
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AI summary
Provided is a Light Emitting Diode (LED) display device. The LED display device includes: a rectangle framework (10), including a frame (11), a first transverse beam (12) and a second transverse beam (13) arranged inside the (11) frame at intervals, an adapter plate assembly (20), including a fixed plate (21) mounted at a strip-like gap and an adapter plate (22) detachably arranged on a rear side of the fixed plate (22), the fixed plate (21) being provided with a lock (30), a display module (40), mounted on a front side of the rectangle framework (10) through a magnetic attraction structure, a rear side of the display module (40) being provided with a first strip-shaped lock hole (41), wherein, the lock (30) includes a rotary shaft (33) rotatably arranged on the fixed plate (21) and a first lock tongue (31) arranged on the rotary shaft (33), the first lock tongue (31) is able to go through the first strip-shaped lock hole (41) and has a first unlocking position corresponding to the first strip-shaped lock hole (41) and a first locking position that is staggered with the first strip-shaped lock hole (41), and the adapter plate (22) fits the display module (40) through a connector (50) in a plugging-in manner. The technical solution of the application effectively solves a problem that a display module in a related art falls due to separation from a box body.