Floating Probe Device With Elastic Guide For Inclination Compensation
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Solution Overview
Problem
Conventional probe devices face issues with overcurrent phenomena due to point contact, terminal inclination during assembly, and lack of compensation for external forces applied to needles, leading to product defects and bending issues.
Innovation Solution
A probe device with a floating structure incorporating an elastic portion and guide portion that transmits external forces and provides a restoring force to compensate for inclination, featuring a guide member with a spherical shape and an accommodation space, and a spring member to restore the device to its original state when the force is removed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If point contact is used for electrical connection, then contact precision is improved, but overcurrent phenomenon and sparks occur causing product defects
Solution Approach 1:
The contact tip is designed with a specific geometric shape (spherical or conical) to concentrate the contact area at a precise point while maintaining controlled electrical current distribution. This local geometric optimization allows point contact precision while managing current density to prevent overcurrent phenomena and sparks.
2Object-affected harmful factors
If surface contact is used for electrical connection, then overcurrent phenomenon is prevented, but terminal assembly becomes inclined
Solution Approach 1:
The contact tip uses a precisely engineered spherical or conical geometry that provides a point contact interface. This localized contact geometry ensures accurate terminal positioning and assembly alignment while the contact surface area is optimized to distribute current evenly, preventing overcurrent phenomena.
3Device complexity
If needle is rigidly fixed without compensation, then structural simplicity is maintained, but needle bends under external force affecting terminal
Solution Approach 1:
The needle assembly incorporates a floating structure with elastic components that allow dynamic adjustment and compensation for external forces. The elastic portion enables the needle to return to its original position after deformation, maintaining contact precision while absorbing mechanical stresses without requiring complex rigid compensation mechanisms.
4Manufacturing precision
If floating structure with elastic portion is added to compensate for external force, then needle bending is prevented, but device complexity increases
Solution Approach 1:
The floating structure incorporates an elastic portion that provides dynamic compensation for external forces applied to the needle. This elastic component allows the needle to flex temporarily under load and automatically return to its original position, maintaining precise contact alignment without requiring complex mechanical compensation systems with multiple moving parts.
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 probe device effectively compensates for inclination caused by external forces and restores the device to its original state, preventing product defects and ensuring stable contact and assembly.
Implementation Method 1
an elastic portion (160) provided to transmit the external force applied to the needle to the guide portion (140)
Implementation Method 2
a spring member (440) provided in the plate unit (400) to provide a restoring force when the external force is removed
Data Source
Figure 1
Figure 2~3
Figure 4
AI summary
Disclosed is a probe device of a floating structure comprising a probe unit having a groove formed at one end thereof into which a needle for transmitting an electrical signal is inserted, and a guide portion formed at the other end thereof and a plate unit having an inner space which is inserted with the guide portion and formed to support a part of the guide portion, wherein the guide portion is spaced apart from the inner space at a predetermined interval by an external force applied to the needle.