Press-Fit Probe and Wiring Board Connection for Fast Board Replacement
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Solution Overview
Problem
Conventional electrical connection apparatuses require time-consuming screwing processes for replacing circuit boards, hindering efficient replacement and maintenance.
Innovation Solution
The apparatus employs press-fit pins with elastically deforming heads to securely attach and detach circuit boards, allowing for easy replacement and integration of flexible wiring sheets with interchangeable internal circuits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If circuit boards are connected by screwing, then the connection is secure and reliable, but the replacement time is long and productivity is low
Solution Approach 1:
The patent replaces the traditional screwing mechanical system with a press-fit mechanical system. The press-fit pins with elastically deforming heads provide secure connection through elastic deformation and geometric interlocking, eliminating the need for threading operations while maintaining connection reliability.
Solution Approach 2:
The patent changes the mechanical parameters of the connection system by using press-fit pins with specific elastic deformation characteristics. The heads are designed to deform elastically under pressing force and then lock into recesses, providing a connection mechanism that is both rapid and reliable without requiring threaded engagement.
2Productivity
If press-fit pins with elastically deforming heads are used, then circuit board replacement is fast and easy, but the connection structure becomes more complex
Solution Approach 1:
The patent segments the connection system into distinct modular components: press-fit pins with elastically deforming heads, recesses in circuit boards, and recesses in the probe head. This segmentation allows for standardized, interchangeable parts that simplify the overall system while enabling rapid replacement through simple insertion and pressing actions.
3Measurement precision
If multiple circuit boards are superimposed to create electrical connection apparatus, then measurement functionality is improved, but the apparatus becomes difficult to maintain and replace
Solution Approach 1:
The patent introduces dynamic replaceability to the multi-layer circuit board system. The press-fit connection mechanism allows circuit boards to be dynamically inserted and removed without disassembling the entire apparatus, maintaining measurement functionality while significantly improving maintainability through tool-free replacement operations.
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
Facilitates rapid and secure attachment of circuit boards, enabling flexible and accurate electrical measurements with reduced mechanical stress and improved measurement accuracy.
Implementation Method 1
A press-fit pin having an elastically deforming head is embedded in the wiring sheet
Data Source
AI summary
An electrical connection apparatus includes: a probe head holding a probe; a wiring sheet including a first connection portion arranged on a first sheet surface facing the probe head and a second connection portion arranged on a second sheet surface; and a wiring board that is arranged facing the second sheet surface. A press-fit pin having an elastically deforming head is embedded in the wiring sheet, and the head is exposed from at least any of the first sheet surface and the second sheet surface. The head of the press-fit pin exposed from the first sheet surface is fitted into a recess formed in the probe head to fix the probe head to the wiring sheet. The head of the press-fit pin exposed from the second sheet surface is fitted into a recess formed in the wiring board to fix the wiring board to the wiring sheet.