Piezoelectric Driving Device Signal Transmission Layer Integration
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Solution Overview
Problem
Conventional piezoelectric driving devices with signal transmission layers located outside the pump body are prone to damage and have a large overall volume due to their multi-layer structure, which complicates protection and assembly.
Innovation Solution
The signal transmission layer is integrated between the vibration unit and the plane unit, forming a compact structure where the piezoelectric element, signal transmission layer, and plane unit are sequentially stacked, with the signal transmission layer being electrically connected to the electrodes of the piezoelectric element and housed within the device for enhanced protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the signal transmission layer is located outside the pump body, then the assembly is easier, but the signal transmission layer is more prone to damage and the overall volume is larger
Solution Approach 1:
The signal transmission layer is nested inside the pump body, specifically positioned between the vibration unit and the plane unit. This internal placement protects the signal transmission layer from external damage while maintaining electrical connectivity to the piezoelectric element, resolving the contradiction between ease of assembly and protection reliability.
2Ease of manufacture
If the signal transmission layer is located outside the pump body, then the assembly is easier, but the overall volume is larger
Solution Approach 1:
The signal transmission layer is merged with the internal structure of the pump body, integrating it between the vibration unit and plane unit. This eliminates the need for separate external layers, reducing overall device volume while maintaining assembly simplicity through the integrated design.
3Reliability
If the signal transmission layer is integrated inside the device, then the protection is better and volume is reduced, but the assembly becomes more complex
Solution Approach 1:
The signal transmission layer is positioned in a specific dimensional space between the vibration unit and plane unit, utilizing the vertical stacking arrangement. This spatial organization simplifies the assembly process by providing a clear assembly sequence while ensuring internal protection, thus reducing perceived complexity despite integrated placement.
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
This configuration reduces the overall thickness of the piezoelectric driving device, provides better protection for the signal transmission layer, simplifies assembly, and maintains efficient electrical connectivity, while minimizing the risk of damage to the signal transmission layer.
Implementation Method 1
can deform a piezoelectric vibrator only by an inverse piezoelectric effect of piezoelectric ceramics
Data Source
AI summary
A piezoelectric driving device includes a vibration unit, a piezoelectric element, a signal transmission layer, and a plane unit. The piezoelectric element includes a first electrode and a second electrode electrically isolated from each other. The signal transmission layer includes a first conductive zone and a second conductive zone. The first electrode of the piezoelectric element is electrically connected to the first conductive zone of the signal transmission layer, and the second electrode of the piezoelectric element is electrically connected to the second conductive zone of the signal transmission layer. The plane unit has at least one hole. The piezoelectric element, the signal transmission layer, and the plane unit are located at one side of the vibration unit and are sequentially stacked together.