Mainspring Power Generator With Sequential Unwinding for Fluid Supply

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Solution Overview

Problem

Existing electric fluid supply devices are expensive, difficult to deploy in non-equipped sites, and cannot operate during power outages, hindering microfluidic applications like blood testing and environmental monitoring.

Innovation Solution

A power generator utilizing mainspring modules with sequential unwinding and a holder module to control power supply, providing continuous power through elastic energy storage and sequential spring unwinding.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If electric fluid supply devices are used, then fluid injection can be performed automatically, but the device becomes expensive and difficult to deploy in remote locations

Engineering Contradiction:
Improveautomatic fluid injectionVSAvoidnumber of electric components
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent replaces electric components with a mechanical power generation system consisting of mainsprings, gear mechanisms, and ratchet structures. The mainspring module stores mechanical energy that drives the fluid injection process through purely mechanical means, eliminating the need for electric motors, power supplies, and control circuits while maintaining automated operation capability

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The mainspring is pre-wound to store energy before the fluid injection process begins. This preliminary action of winding the spring allows the device to operate autonomously without requiring external power during operation, reducing the need for complex electric components and enabling deployment in remote locations

Inventive Principle:
Principle #10Preliminary action

2Productivity

If electric fluid supply devices operate automatically according to power supply, then continuous operation is possible, but the device cannot operate during power outages

Engineering Contradiction:
Improvecontinuous operation capabilityVSAvoidoperation during power outage
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The mainspring is pre-wound to store mechanical energy before the fluid injection process begins. This preliminary action of winding the spring allows the device to operate autonomously without requiring external power during operation, ensuring continuous operation and reliability during power outages

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The mechanical power generation system is self-contained and does not require external power sources. The mainspring module generates its own power through mechanical winding and storage, making the device self-sufficient and reliable during power outages without needing grid electricity

Inventive Principle:
Principle #25Self-service

3Duration of action of moving object

If multiple mainspring modules are used to extend power duration, then continuous power supply is achieved, but the device complexity increases

Engineering Contradiction:
Improvepower supply durationVSAvoidnumber of mainspring modules
Core Design Contradiction:
Duration of action of moving objectVSDevice complexity

Solution Approach 1:

The power generation system is divided into multiple independent mainspring modules, each capable of storing and releasing energy separately. This segmentation allows the duration of operation to be extended by adding modules while maintaining modularity and relatively simple individual component design

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Multiple mainspring modules are combined in parallel to extend the overall power supply duration. The modules work together through a shared transmission mechanism, achieving extended operation time while distributing the complexity across multiple simple, identical units rather than one complex system

Inventive Principle:
Principle #5Merging (Combining)

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 power generator ensures continuous power supply for a certain period without external power, enabling reliable operation of fluid supply devices in remote or power-outage scenarios.

Implementation Method 1

a first spring that provides a rotational force as it is wound and unwound by rotation

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentUS12624679B2Power generator and fluid supply device having the same
Publication Date: 2026.05.12 PUKYONG NAT UNIV IND ACADEMIC COOPERATION FOUND
  • US12624679B2 patent drawing
  • US12624679B2 patent drawing
  • US12624679B2 patent drawing

AI summary

A power generator is provided including a first outer case in which an internal space is formed; a first mainspring module having a first spring providing rotational force as it is wound and unwound; a first inner case which covers the first mainspring module and rotates about a rotation axis according to the rotational force provided by the first spring; a second outer case in which an internal space is formed and disposed on the first outer case; a second mainspring module having a second spring providing rotational force as it is wound and unwound; a second inner case which covers the second mainspring module and rotates about the rotation axis according to the rotational force provided by the second spring; and a first holder module coupled to the first outer case to limit the unwinding of the first spring until the unwinding of the second spring is completed.