Thin Gas Transport Contact Frame With Strip-Bent Conductive Pin
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing thin gas transportation devices face issues with high electrical resistance and rapid abrasion due to high impedance conductive frames and point contact connections, which decrease transmission efficiency and lifespan.
Innovation Solution
A thin gas transportation device design featuring a conductive frame with an elastic conductive pin that forms a strip-shaped bent portion for increased contact area with the actuating element, reducing electrical impedance and preventing abrasion, and omitting soldering to prevent electric arcs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If a conventional conductive frame with point contact connections is used, then the device structure is simple, but the electrical impedance is high and transmission efficiency decreases
Solution Approach 1:
The conductive pin contact surface changes from point contact to line contact by extending the contact area along the actuator vibration direction, reducing electrical impedance from high to low while maintaining structural simplicity
Solution Approach 2:
The contact area parameter is changed from point contact (zero area) to line contact (extended area), which reduces electrical impedance and improves transmission efficiency without significantly increasing device complexity
2Duration of action of moving object
If point contact connections are used between conductive contacts and actuator, then the device structure is simple, but abrasion is severe and lifespan decreases
Solution Approach 1:
The contact geometry transitions from point contact to line contact by extending the conductive pin contact surface, distributing mechanical stress over a larger area and reducing abrasion rate, thereby extending device lifespan
Solution Approach 2:
The conductive pin is pre-bent to form a contact surface that proactively accommodates actuator vibration, preventing direct point impact and reducing mechanical wear before abrasion occurs
3Reliability
If four conductive contacts are used to connect to the actuator, then the electrical connection is established, but resistance differences cause interference during vibration
Solution Approach 1:
Multiple separate conductive contacts (four contacts) are merged into a single conductive pin with an extended contact surface, eliminating resistance differences between multiple contacts and preventing electrical interference during vibration
Solution Approach 2:
The electrical connection is homogenized by using a single conductive pin contact surface instead of multiple contacts with different resistances, ensuring uniform current distribution and eliminating interference during actuator vibration
4Reliability
If soldering is used to connect conductive contacts, then the electrical connection is established, but electrical arcs occur and accelerate abrasion
Solution Approach 1:
The soldering process (thermal/mechanical connection method) is replaced by direct mechanical contact through the conductive pin, eliminating the soldering process that generates electrical arcs and associated harmful effects
Solution Approach 2:
The potential harm of electrical arcs during soldering is eliminated by replacing the soldering process with direct mechanical contact, converting a harmful process into a beneficial direct connection that prevents arc generation
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 solution enhances conductivity, reduces abrasion, and prolongs the device's lifespan by increasing the contact area between the conductive pin and the actuating element, improving transmission efficiency and reliability.
Implementation Method 1
one end of the elastic conductive pin is connected to an inner edge portion of the conductive outer frame, and the other end of the elastic conductive pin extends obliquely toward the actuating element and forms a bent portion
Implementation Method 2
The existing gas transportation device applies a high-frequency driving voltage to an actuator inside the thin gas transportation device, and transports the gas by the rapid vibration of the actuator owing to the piezoelectric effect
Data Source
AI summary
A thin gas transportation device includes an inlet plate, a resonance sheet, an actuating element, a first insulation frame attached to the actuating element, a conductive frame, and a second insulation frame attached to the conductive frame. The conductive frame has a conductive outer frame attached to the first insulation frame, an elastic conductive pin, and a conductive piece connected to an outer edge portion of the conductive outer frame. One end of the elastic conductive pin is connected to an inner edge portion of the conductive outer frame, and the other end of the elastic conductive pin extends obliquely toward the actuating element and forms a bent portion. The bent portion presses against the actuating element and is electrically connected to the actuating element, and the bent portion is strip-shaped.