Display Frame Elastic Pad Eliminates Snap-Fit Gaps
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Solution Overview
Problem
In liquid crystal displays, manufacturing errors can cause size deviations between the front frame and the back panel, leading to snap-fit gaps that result in loose connections, abnormal sounds, and poor performance, especially in automotive displays.
Innovation Solution
A display frame design that includes a front frame, a back panel, a middle frame, and an elastic pad. The elastic pad is placed between the middle frame and the front edge to increase support thickness, eliminate fit gaps, and ensure a tight engagement between the back panel and the front frame.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a buckle structure is used to connect the front frame and back panel, then assembly is simplified, but manufacturing errors cause snap-fit gaps that lead to loose connections and abnormal sounds
Solution Approach 1:
The elastic pad is introduced as an intermediary component between the front frame and back panel. It fills the snap-fit gaps caused by manufacturing errors and provides continuous contact support, preventing the loose connection and abnormal sounds while maintaining the simple buckle structure assembly method
Solution Approach 2:
The elastic pad changes the physical parameters of the connection interface by providing deformable support. It compensates for dimensional deviations through elastic deformation, transforming the rigid snap-fit connection into a flexible connection that maintains stability despite manufacturing variations
2Manufacturing precision
If the snap-fit gap between front frame and back panel is large, then assembly tolerance is accommodated, but collision between components causes abnormal sounds and poor performance
Solution Approach 1:
The elastic pad is pre-installed at the connection interface to provide cushioning before any collision can occur. It absorbs impact energy and prevents direct collision between the front frame and back panel, eliminating abnormal sounds while accommodating assembly tolerance variations
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 use of an elastic pad effectively eliminates snap-fit gaps, prevents abnormal sounds, and ensures stable operation by maintaining a tight connection between the back panel and the front frame, thereby improving the overall performance of the display.
Implementation Method 1
an elastic pad is provided between the middle frame and the front edge to increase the support thickness between the front edge and the bottom plate, eliminate the fit gap between the back panel and the front frame
Implementation Method 2
The elastic pad is used for supporting between the top surface of the side wall of the middle frame and the front edge, so that the first snap part and the second snap part are tightly engaged
Data Source
AI summary
A display frame includes a front frame, a back panel, a middle frame in the front frame, and an elastic pad between the top surface of a side wall of the middle frame facing the front edge and the front edge. The front frame includes a frame structure and a front edge located at one end of the frame structure and extending towards the center of the frame structure. Opposite side walls of the frame structure have a first snap part. The back plate includes a bottom plate and a side plate located on the side edge of the bottom plate and extending towards one side of the bottom plate. The inner surface of the bottom plate is opposite to the inner surface of the front edge. The side plate has a second snap part for fitting with the first snap part.