Integrated Reel Device with Built-in Circuit Testing

Solution Overview

Problem

Conventional reel devices for storing wire lack integrated measuring capabilities, requiring separate extension cords for testing distant circuits, which increases size and weight, and existing measuring models only perform single functions.

Innovation Solution

A rollable storage device with a built-in measuring model that includes a casing, pivoting covers, and terminals for connecting to circuits, featuring circuits for current, voltage, resistance, and frequency testing, along with a display panel to present results, eliminating the need for external extension cords.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a separate extension cord and measuring model are used to test distant circuits, then the measurement capability is improved, but the device size and weight increase

Engineering Contradiction:

Improvemeasurement capabilityVSAvoiddevice weight

Core Design Contradiction:

ReliabilityVSWeight of stationary object

Solution Approach 1:

The patent combines the extension cord function and measuring model into a single integrated reel device. The measuring model is directly mounted on the reel device, allowing both wire extension and circuit measurement to be performed by one unified tool rather than requiring separate extension cord and measuring model devices.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The reel device is designed to perform multiple functions: it serves as both an extension cord for reaching distant circuits and as a measuring model for detecting circuit parameters. This multi-functional design eliminates the need for separate tools and reduces overall equipment weight.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Reliability

If a separate extension cord and measuring model are used to test distant circuits, then the measurement capability is improved, but the device complexity increases

Engineering Contradiction:

Improvemeasurement capabilityVSAvoiddevice complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines the extension cord function and measuring model into a single integrated reel device. The measuring model is directly mounted on the reel device, allowing both wire extension and circuit measurement to be performed by one unified tool rather than requiring separate extension cord and measuring model devices.

Inventive Principle:

Principle #5Merging (Combining)

3Device complexity

If a single-function measuring model is used, then the device simplicity is maintained, but the detection function is limited

Engineering Contradiction:

Improvedevice simplicityVSAvoiddetection function

Core Design Contradiction:

Device complexityVSAdaptability or versatility

Solution Approach 1:

The reel device is designed to perform multiple functions: it serves as both an extension cord for reaching distant circuits and as a measuring model for detecting circuit parameters. This multi-functional design eliminates the need for separate tools and reduces overall equipment weight.

Inventive Principle:

Principle #6Universality (Multi-functionality)

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 device provides a portable solution for multiple detection functions, reducing user burden by integrating measurement and display capabilities within a compact reel device, allowing for efficient testing of external circuits and power sources without additional equipment.