Press-Fit Module With Rolling Cam Mechanism for Multi-Pin Testing
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Solution Overview
Problem
Traditional test sockets struggle to effectively manage the increased number of pins in high-power electronic modules, requiring excessive force for stable contact and testing, leading to instability and reduced accuracy.
Innovation Solution
A press-fit module with a rotating handle, cam follower, and cam pushing unit that converts sliding friction into rolling friction, using a cam follower and cam pushing unit to reduce torque requirements and enhance stability and accuracy through a mechanism that includes a rotating handle, carrier device, and pressing structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the number of test probes is increased to accommodate more pins in high-power electronic modules, then the testing capability is improved, but the required pressing force increases making the device difficult to operate
Solution Approach 1:
The patent changes the friction parameter from sliding friction to rolling friction by introducing rollers between the press-fit cover and the electronic module. This parameter change reduces the coefficient of friction significantly, allowing the device to accommodate more test probes (improving testing capability) while requiring less pressing force (improving ease of operation).
Solution Approach 2:
The patent replaces the traditional sliding friction-based pressing mechanism with a rolling friction-based mechanism using rollers. This mechanical substitution transforms the interaction between the press-fit cover and electronic module from sliding contact to rolling contact, reducing the force required to achieve stable contact across multiple test probes.
2Device complexity
If traditional sliding friction is used in the press-fit mechanism, then the structure is simple, but excessive force is required and stability is reduced
Solution Approach 1:
The patent changes the friction parameter from sliding friction to rolling friction by introducing rollers. This parameter change improves testing stability and reduces required force while adding only minimal structural complexity - the rollers are simple cylindrical elements that can be easily integrated into the existing press-fit mechanism.
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 significantly reduces the required torque, improves testing stability, and enhances accuracy by converting sliding friction to rolling friction, ensuring stable contact and uniform force application on electronic components.
Implementation Method 1
each roller of the cam follower rolls from the first flat structure of the corresponding guide structure to the second flat structure via the inclined structure, thereby pushing the cam pushing unit to move
Data Source
AI summary
The present disclosure provides a press-fit test device and a press-fit module. The press-fit test device is configured for testing the electrical performance and the electrical connection of an electronic device under test. The press-fit test device includes a base and a press-fit module. The press-fit module is disposed on the base. The electronic device is positioned between the press-fit module and the test module of the base. When the press-fit module presses against the electronic device, the electronic device establishes an electrical connection to the test module, thereby generating test signals and enabling the electrical performance and connection testing to be performed.