Backlight Module Sliding Frame Assembly Mechanism
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Solution Overview
Problem
Conventional backlight modules face challenges in assembly and disassembly due to the need for significant force to engage protrusions in notches, which can lead to distortion or damage of the plastic frame, affecting mechanical stability and performance.
Innovation Solution
A holding frame with sliding structures, comprising a pair of sliding frames and a bezel, where the bottom plate is slidingly received in the sliding structures, allowing for easy assembly and disassembly without distortion, using sliding guides and screw holes for secure fixation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If protrusions are used to engage with notches for assembly, then the holding frame can be assembled, but considerable force is required which may cause distortion or damage to the plastic frame
Solution Approach 1:
The holding frame is divided into multiple components: a bottom plate, side walls with sliding guides, and protrusions. The side walls are separable from the bottom plate, allowing the protrusions to be engaged with notches in a controlled manner without requiring excessive force on the entire structure at once.
Solution Approach 2:
The sliding guides on the side walls act as intermediaries between the protrusions and the notches. These guides facilitate the engagement process by providing a guided path, reducing the direct force requirement and preventing distortion of the plastic frame during assembly.
2Ease of manufacture
If manual pressing is applied to engage protrusions in notches, then the assembly can be completed, but the process becomes awkward and difficult for disassembly
Solution Approach 1:
The holding frame transitions from a static interconnected structure to a dynamic assembly where side walls can slide along the bottom plate. The protrusions and notches are designed to engage and disengage smoothly along the sliding guides, making both assembly and disassembly operations straightforward without requiring excessive force or complex maneuvers.
3Productivity
If excessive force is applied during assembly, then the protrusions can be engaged in notches, but the plastic frame may be distorted or damaged
Solution Approach 1:
The sliding guides are designed beforehand to cushion and distribute the engagement forces between protrusions and notches. This pre-designed guidance mechanism prevents sudden spikes in force that could damage the plastic frame, while still allowing for relatively quick assembly operations.
Data Source
AI summary
An exemplary backlight module (1) includes a light guide plate (3) including two light incident surfaces (31), two light sources (4) provided adjacent to the light incident surfaces of the light guide plate, and a holding frame (5). The holding frame includes two sliding frames (52) and a bottom plate (51). Each sliding frame includes two side walls opposite to each other and a connecting wall perpendicularly connected with the side walls. The sliding frame defines a sliding structure. The bottom plate is slidingly received in the sliding structures of the sliding frames. The bottom plate and the sliding frame cooperatively form a space to accommodate the light guide plate and the light source therein.