Piezoelectric Button Assembly with Arc-Shaped Elements
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Solution Overview
Problem
Existing technologies lack a feasible technical solution for a piezoelectric button assembly, which is necessary for high-performance electronic devices.
Innovation Solution
A piezoelectric button assembly is developed, comprising a support frame with a receiving space, a piezoelectric module secured within, a flexible printed circuit, a button covering the receiving space, an adapter seat between the button and the piezoelectric module, and elastic members between the button and the support frame. The piezoelectric module includes a ceramic plate and arc-shaped or bowl-shaped piezoelectric elements positioned on opposite sides of the ceramic plate.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a piezoelectric button structure is implemented, then button control sensitivity is improved, but there is no feasible technical solution in practice
Solution Approach 1:
The piezoelectric button is divided into multiple functional modules: piezoelectric ceramic plate, first piezoelectric element, second piezoelectric element, adapter seat, and support frame. Each module performs a specific function and can be manufactured and assembled independently, making the complex piezoelectric button feasible for practical production while maintaining high sensitivity.
2Ease of operation
If piezoelectric elements are positioned on opposite sides of the ceramic plate, then tactile feedback is achieved, but structural complexity increases
Solution Approach 1:
The first piezoelectric element, second piezoelectric element, and piezoelectric ceramic plate are integrated into a unified piezoelectric module structure. The adapter seat and support frame further combine multiple functions (mechanical support, electrical connection, positioning) into single components, reducing overall structural complexity while enabling tactile feedback through the opposing piezoelectric elements.
3Ease of operation
If elastic members are added between button and support frame, then button control functionality is improved, but device complexity increases
Solution Approach 1:
Elastic members are introduced as intermediary components between the button and support frame, serving as mediators that provide both mechanical support and tactile feedback. These elastic members simplify the overall structure by combining support and feedback functions in a single component rather than requiring separate mechanisms.
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 piezoelectric button assembly provides a feasible solution for high-performance electronic devices, enabling sensitive button control and achieving tactile feedback through defined positional and connection relationships of its components.
Implementation Method 1
The piezoelectric effect refers to an effect that when a medium is subjected to a mechanical pressure, deformations, such as compression or elongation are generated, which cause the surface of the medium to become charged. A piezoelectric button or key refers to a button or key structure which implements button or key control by means of the piezoelectric effect
Implementation Method 2
At least one elastic member secured between the button and the support frame
Data Source
AI summary
A piezoelectric button assembly includes a support frame having a receiving space therein, a piezoelectric module received and secured into the receiving space, a flexible printed circuit passing through the support frame and extending into the receiving space, a button covered on the support frame and totally covering the receiving space, an adapter seat secured between the button and the piezoelectric module, and an elastic member secured between the button and the support frame; wherein the piezoelectric module comprises a flat piezoelectric ceramic plate and a first piezoelectric element and a second piezoelectric element that are both in an arc shape or a bowl shape. In the piezoelectric button assembly according to the present disclosure, a technical solution of a feasible piezoelectric button assembly is developed.