Touch Panel Vibration Structure With Split Inner and Outer Frames
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional touch pad modules face challenges in optimizing both vibration characteristics and support characteristics, as selecting a spring portion with a specific elastic modulus either enhances support but attenuates vibration or vice versa, making it difficult to achieve both simultaneously.
Innovation Solution
A vibration structure comprising a housing, a panel, an inner frame, an outer frame, and a vibration body, where the vibration body is attached to the panel or the inner frame, and the outer frame is connected to the housing, allowing for independent optimization of vibration and support characteristics through the design of the inner and outer frames and cushioning materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a spring portion having a large elastic modulus is selected, then the touch pad is firmly supported by the outer frame, but the vibration of the touch pad is greatly attenuated by the spring portion
Solution Approach 1:
The support structure is divided into two separate frames: an outer frame for support and an inner frame for vibration. The outer frame connects to the housing for firm support, while the inner frame holds the touch pad and vibrates independently. This segmentation allows the support and vibration functions to be optimized separately without interfering with each other.
Solution Approach 2:
The inner frame acts as an intermediary between the outer frame and the touch pad. It receives support forces from the outer frame while maintaining independent vibration capability. This intermediary structure enables the touch pad to be firmly supported through the outer frame while preserving vibration characteristics through the inner frame's independent motion.
2Reliability
If a spring portion having a small elastic modulus is selected, then damping of vibration of the touch pad in the spring portion is suppressed, but the support of the touch pad to the outer frame becomes fragile
Solution Approach 1:
By separating the support function (outer frame) from the vibration function (inner frame), the system can use a rigid outer frame for strong support while allowing the inner frame to have flexible, low-damping properties for optimal vibration. The segmentation eliminates the need for a compromise in material selection.
Solution Approach 2:
Different parts of the system have different mechanical properties optimized for their specific functions: the outer frame has high elastic modulus for strong support, while the inner frame has lower elastic modulus and damping characteristics optimized for vibration. Each local region has quality tailored to its function.
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
Enables easy realization of both optimized vibration and support characteristics of the panel, with the vibration body attached to the panel or inner frame, and the outer frame attached to the housing, allowing for enhanced vibration efficiency and robust support.
Implementation Method 1
a vibration body 5 that vibrates the panel 2
Implementation Method 2
The spring portion (7) connects the inner frame (3) and the outer frame (4)
Data Source
AI summary
A vibration structure that includes: a housing; a panel having a main surface; an inner frame physically connected to the panel and the housing, the inner frame including a first portion overlapping the housing as viewed in a normal direction of the main surface; an outer frame physically connected to the panel and the housing, the outer frame surrounding the inner frame as viewed in the normal direction, and the outer frame including a second portion overlapping the panel as viewed in the normal direction; and a vibration body that vibrates the panel, wherein (A) or (B): (A) the vibration body is attached to the panel or the inner frame; or (B) the vibration body is attached across the panel or the inner frame, and the housing or the outer frame.