Electrical Probe Stationary Cable Design

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Solution Overview

Problem

Existing large-current measuring instruments face issues with heat dissipation due to crowded wires, wire abrasion, and misplacement during maintenance, which can lead to instrument failure.

Innovation Solution

An electrical probe design featuring a stationary cable connected to a second electrical connection member, reducing wire movement and eliminating the need for disassembly, thereby minimizing heat generation and misconnection risks.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Power

If wires are used to connect the driving end and sensing end in probe sets, then electrical current can be transmitted, but heat dissipation problems occur due to large current flow through the wires

Engineering Contradiction:

Improvecurrent transmission capabilityVSAvoidheat dissipation

Core Design Contradiction:

PowerVSTemperature

Solution Approach 1:

The patent extracts the wire from the probe structure, eliminating it entirely. Instead of using wires to connect the driving end and sensing end, the invention uses a probe body with integrated contact points that directly contact the test object, removing the source of heat dissipation while maintaining electrical transmission capability

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent replaces the mechanical wire connection system with a direct mechanical contact system. The probe body itself serves as the electrical connection medium through its contact points, substituting the flexible wire mechanism with a rigid structured approach that eliminates resistive heating

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Reliability

If wires are moved with the probe head during sliding contact, then electrical connection is maintained, but abrasion and wear occur between the wire and neighboring internal components

Engineering Contradiction:

Improveelectrical connection continuityVSAvoidwire abrasion and wear

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent removes the wire from the probe structure entirely, eliminating the component that suffers from abrasion and wear. The electrical connection is achieved through the probe body's contact points which do not require flexible wiring that moves with the probe head

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent segments the electrical connection function from the mechanical movement function. The contact points are separated into distinct locations on the probe body, allowing electrical connection without requiring a continuous flexible wire that would be subject to wear during probe head movement

Inventive Principle:

Principle #1Segmentation

3Ease of repair

If wires are disassembled for service or maintenance, then access to internal components is gained, but positive/negative terminals may be mis-located causing instrument failure

Engineering Contradiction:

Improvemaintenance accessibilityVSAvoidterminal connection accuracy

Core Design Contradiction:

Ease of repairVSReliability

Solution Approach 1:

The patent extracts the wire and its associated connection terminals from the probe structure. This eliminates the components that require disassembly and reassembly during maintenance, removing the source of potential mislocation errors while maintaining access to internal components through the probe's modular design

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent inverts the traditional maintenance approach by making the probe body itself removable or modular rather than requiring wire disassembly. This allows maintenance personnel to access internal components by removing the probe body or specific modules without handling delicate wire connections, thereby preventing terminal mislocation

Inventive Principle:

Principle #13The other way round (Inversion)

4Productivity

If multiple probe sets are fixed onto a base plate, then simultaneous testing at multiple points is enabled, but the measuring instrument becomes crowded

Engineering Contradiction:

Improvesimultaneous testing capabilityVSAvoidinstrument crowding

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The patent applies dimensionality change by transitioning from a two-dimensional planar arrangement of multiple probe sets on a base plate to a three-dimensional configuration. The modular probe body design allows vertical stacking or angular arrangement of multiple probes, enabling simultaneous multi-point testing while reducing horizontal crowding on the base plate

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

Data Source

PatentUS10712366B2Electrical probe

Publication Date: 2020.07.14 CHROMA ATE INC

AI summary

An electrical probe includes a probe assembly and a second electrical connection member. The probe assembly includes a needle cylinder, a first electrical connection member, a probe head and a sub-probe. The first electrical connection member and the probe head locate to two opposite sides of the needle cylinder. The first electrical connection member and the probe head electrically connect the needle cylinder. The sub-probe penetrates the probe head, and plugs the needle cylinder to electrically connect a cable but being electrically isolated from the needle cylinder. The sub-probe is located on a side away from the first electrical connection member. When the probe head depresses the object, the needle cylinder drives the first cylinder to a contact position to allow the first electrical connection member to electrically contact the second electrical connection member, and thus the probe head connects the second electrical connection member via the needle cylinder.