Dual-Powered Airflow Generator With Solar Auxiliary Motor

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Solution Overview

Problem

Existing air conditioning and heat pump systems rely solely on primary power sources when secondary sources like solar energy are unavailable, lacking efficient integration of multiple power sources without complex electronics.

Innovation Solution

A dual-powered airflow generator is developed, featuring a primary fan motor powered by a primary source and an auxiliary fan motor powered by a secondary source, such as solar or wind energy, mechanically coupled with an overrunning clutch and microcontroller to maintain consistent airflow.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Use of energy by moving object

If a single primary power source is used to operate the fan motor, then the system structure is simple, but the system cannot utilize secondary power sources like solar energy to reduce primary power consumption

Engineering Contradiction:
Improveprimary power consumptionVSAvoidsystem structure
Core Design Contradiction:
Use of energy by moving objectVSDevice complexity

Solution Approach 1:

The fan motor is divided into two independent motor units: a primary fan motor powered by commercial line voltage and an auxiliary fan motor powered by solar panels. Each motor can operate independently or simultaneously, allowing the system to segment power consumption across multiple sources and reduce reliance on the primary power source.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The airflow generator is designed with multi-functionality to accept multiple power sources. The system can operate using only the primary motor, only the auxiliary motor, or both motors simultaneously, making it adaptable to different operating conditions and power availability scenarios.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Reliability

If solar power is used to operate the fan motor, then primary power consumption is reduced, but the system cannot maintain consistent airflow when solar radiation is unavailable

Engineering Contradiction:
Improveairflow consistencyVSAvoidpower source availability
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The system is designed with both primary and auxiliary motors installed and configured before operation. The microcontroller is pre-programmed to monitor power availability and automatically switch between or combine motor operations, ensuring seamless transitions and consistent airflow regardless of solar radiation availability.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The microcontroller acts as an intermediary that monitors the operational status of both motors and the power availability. It automatically adjusts the operation of the primary and auxiliary motors to maintain consistent airflow, switching between power sources or combining their output based on real-time conditions.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Adaptability or versatility

If complex electronics are used to integrate multiple power sources, then power integration is achieved, but the device complexity increases

Engineering Contradiction:
Improvepower source integrationVSAvoidelectronic integration
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The microcontroller automatically monitors power availability and motor operational status, and autonomously determines the optimal operation mode without requiring complex external control electronics or manual intervention. The system self-regulates to maintain consistent airflow while utilizing available power sources efficiently.

Inventive Principle:
Principle #25Self-service

Data Source

PatentEP2151581B1Dual-powered airflow generator
Publication Date: 2017.10.04 LENNOX IND INC
  • EP2151581B1 patent drawingFigure 1~2
  • EP2151581B1 patent drawingFigure 3
  • EP2151581B1 patent drawingFigure 4A

AI summary

A dual-powered airflow generator (100) comprising: a primary fan motor (110) powered from a primary power source and an auxiliary fan motor (120) powered from a secondary power source. In one embodiment, the primary fan motor has a first drive shaft (113) wherein operation of the primary fan motor causes a desired airflow at a design power of the primary power source. In a preferred embodiment, the auxiliary fan motor (120) is powered from a secondary power source (150) and has a second drive shaft (123) mechanically coupled to the primary fan motor, wherein the auxiliary fan motor is configured to assist the primary fan motor in causing the desired airflow while the primary fan motor operates from the primary power source at a reduced power. In a preferred embodiment, the auxiliary fan motor is powered by a solar power generating device or other alternative energy source.