Pogo Pin Structure With Direction-Dependent Elastic Force
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Solution Overview
Problem
Conventional pogo pins apply uniform elastic force to both upper and lower connection portions, failing to account for varying contact object conditions, leading to inconsistent performance.
Innovation Solution
A pogo pin design with adjustable elastic force, featuring local fixing parts on the housing to allow differential force application to upper and lower connection parts, utilizing spring windings and housing configurations to customize elastic force distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If the spring provides uniform elastic force to both upper and lower connection parts, then the structure is simple and easy to manufacture, but the elastic force is insufficient when stroke direction differs or contact conditions vary
Solution Approach 1:
The housing includes a local fixing part that protrudes inward to press and fix a first position of the spring, creating different effective lengths and elastic forces for the upper and lower connection parts. This local modification allows the spring to provide customized elastic force distribution tailored to specific contact conditions, resolving the contradiction between uniform force simplicity and adaptive force requirements
2Reliability
If the spring enters the barrel interior to provide cushioning, then the object to be inspected is protected from damage, but the device size increases and miniaturization becomes difficult
Solution Approach 1:
The spring is nested within the housing in a compact configuration, with the local fixing part strategically positioned to maximize space utilization. The spring coils are arranged to fit efficiently within the limited interior space of the housing, providing necessary cushioning protection while maintaining a compact overall size that enables miniaturization
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
Enables tailored elastic force adjustment for improved contact reliability and performance consistency across different contact scenarios.
Implementation Method 1
a spring installed inside the housing to provide elastic force so that the plunger pin contacts the measurement object
Data Source
AI summary
A pogo pin whose elastic force can be adjusted according to a contacting direction is disclosed. According to an aspect of the present invention, provided is a pogo pin with adjustable elastic force, including: a housing; plunger pins mounted on ends of the housing to directly contact a measurement object; and a spring installed inside the housing to provide elastic force so that the plunger pin contacts the measurement object, wherein a local fixing part protruding inward is formed on one side of the housing so that a first position of the spring can be pressed and fixed.