Pressure Sensor Terminal Contact Using an Elastic Conductive Member
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Solution Overview
Problem
Existing pressure sensors suffer from low contact force and high contact resistance, leading to unreliable electrical connections and reduced signal transmission performance.
Innovation Solution
Incorporation of an elastic conductive member, such as an elastic clip, to provide sufficient elastic electrical contact between the terminal and the circuit board, ensuring reliable electrical connection and improved signal transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a terminal is directly connected to a conductive hole or slot on the circuit board, then the device complexity is reduced, but the contact force is low and electrical contact reliability deteriorates
Solution Approach 1:
An elastic conductive member is introduced as an intermediary component between the terminal and the circuit board. This elastic conductive member includes a first contact portion that contacts the terminal and a second contact portion that contacts the conductive hole or slot, providing reliable electrical connection while maintaining structural simplicity
Solution Approach 2:
The elastic conductive member utilizes elastic deformation to generate contact force. By changing the physical state from rigid direct contact to elastic indirect contact, the system achieves both sufficient contact force and reliable electrical connection without significantly increasing structural complexity
2Ease of manufacture
If a terminal is directly connected to a conductive hole or slot on the circuit board, then the manufacturing process is simplified, but the contact resistance increases
Solution Approach 1:
The elastic conductive member serves as a mediator that ensures low contact resistance through its elastic contact mechanism. The first contact portion contacts the terminal and the second contact portion contacts the conductive hole or slot, creating multiple contact points that reduce overall contact resistance while maintaining manufacturing simplicity
Solution Approach 2:
The elastic conductive member dynamically adapts to contact conditions through elastic deformation. This dynamic characteristic allows the contact surfaces to self-adjust and maintain optimal contact pressure, ensuring low contact resistance without complicating the manufacturing process
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 elastic conductive member ensures reliable electrical contact and enhances signal transmission performance by providing sufficient contact force.
Implementation Method 1
an elastic conductive member arranged in the conductive hole; The elastic conductive member is in elastic electrical contact with the terminal
Data Source
AI summary
A pressure sensor includes a shell having an installation chamber and an inner cavity for accommodating a fluid, a pressure detection chip installed in the installation chamber of the shell for detecting a fluid pressure in the inner cavity, a circuit board installed in the installation chamber of the shell and electrically connected to the pressure detection chip, a cover installed in an opening of the installation chamber of the shell to seal the opening of the installation chamber, and a terminal passing through the cover and fixed to the cover. The circuit board has a conductive hole and the pressure sensor has an elastic conductive member arranged in the conductive hole. The elastic conductive member is in electrical contact with the terminal to electrically connect the terminal to the conductive hole.