Arc-Shaped Elastic Terminals for Testing Devices

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Solution Overview

Problem

Existing testing fixtures with spring probes and complex S-shaped elastic terminals face issues with increased resistance and electromagnetic interference, which hinder efficient electric signal transmission and fail to meet the requirements of advanced electrical signal communication technologies.

Innovation Solution

A testing device featuring arc-shaped elastic terminals clamped on elastic members with recessed terminal boards, providing a simple structure that minimizes contact impedance and interference, and includes a conductive coating for improved conductivity, with a resilient design that enhances the elastic life of the terminals.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Force

If a spring probe with internal mechanical structure is used, then elastic force is provided for contact, but multiple contact resistances are formed resulting in relatively large total resistance

Engineering Contradiction:

Improveelastic forceVSAvoidtotal resistance

Core Design Contradiction:

ForceVSReliability

Solution Approach 1:

The patent extracts and eliminates the spring contact member from the internal mechanical structure of the probe. By removing this component that causes multiple contact resistances, the invention achieves lower total resistance while maintaining elastic force through an alternative elastic terminal design with arc-shaped elastic deformation portion.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The invention replaces the traditional spring probe mechanical structure with a new elastic terminal design featuring an arc-shaped elastic deformation portion. This substitution eliminates the multi-point contact mechanism that generates resistance, providing both elastic force and electrical connectivity with reduced resistance.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Force

If a coil spring is used to provide elastic force, then elastic force is provided for the spring probe, but the coil structure forms impedance or interference to electric signal transmission

Engineering Contradiction:

Improveelastic forceVSAvoidelectromagnetic interference

Core Design Contradiction:

ForceVSObject-affected harmful factors

Solution Approach 1:

The patent removes the coil spring from the structure entirely. By extracting this component that generates electromagnetic interference, the invention eliminates the harmful effect on electric signal transmission while maintaining the necessary elastic force function through the arc-shaped elastic deformation portion.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The invention substitutes the coil spring mechanical system with a simplified elastic terminal structure featuring an arc-shaped elastic deformation portion. This replacement maintains the elastic force function while eliminating the coil structure that causes electromagnetic interference and impedance to electric signals.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Force

If a complex S-shaped elastic terminal is used, then elastic force is provided by laminated rotating structure, but various impedances or interferences occur in electrical performance

Engineering Contradiction:

Improveelastic forceVSAvoidelectrical impedance

Core Design Contradiction:

ForceVSObject-affected harmful factors

Solution Approach 1:

The patent extracts and eliminates the complex laminated rotating structure from the elastic terminal design. By removing this complicated structure that causes electrical impedance and interference, the invention achieves better electrical performance while maintaining elastic force through a simpler arc-shaped elastic deformation portion.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

Instead of using a complex S-shape with laminated rotating structure, the invention inverts the approach by采用ing a simpler arc-shaped elastic deformation portion. This inversion simplifies the structure, reduces electrical impedance, and eliminates interference while maintaining the elastic force function.

Inventive Principle:

Principle #13The other way round (Inversion)

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 reduces total resistance and electromagnetic interference, improves the resilience and reliability of the elastic terminals, and simplifies assembly by using clamping and embedding connections, ensuring effective and efficient electric signal transmission.

Implementation Method 1

By using the arc-shaped elastic terminal, the elastic recovery effect can be realized

Methodology Applied

Scientific EffectElastic recovery: Elastic Recovery

Data Source

PatentUS11567103B2Testing device

Publication Date: 2023.01.31 QUANWISE MICROELECTRONICS (ZHUHAI) CO LTD

AI summary

A testing device is disclosed including a plurality of elastic members, a plurality of elastic terminals, and a plurality of terminal boards. Each elastic member is provided with an arc-shaped elastic deformation portion, at least one elastic terminal is arranged as one set and is clamped on one elastic member with an inner arc of the elastic deformation portion. Each terminal board is provided with a recess for accommodating one of the elastic members, the recess is provided with at least one arc-shaped groove each matched with a respective elastic terminal, an outer arc of the elastic deformation portion is embedded in a respective arc-shaped groove, each arc-shaped groove has an upper end extending to an upper surface of the terminal board, and a lower end extending to a lower surface of the terminal board.