Air conditioning system

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Solution Overview

Problem

Conventional air-conditioning systems can only control one environmental factor, leading to impaired comfort as multiple factors like air temperature and radiation temperature cannot be controlled within a comfort range simultaneously.

Innovation Solution

An air-conditioning system that includes an input unit for human body factors, a plurality of environmental factor variable devices, and a control unit to manage multiple environmental factors such as air temperature, floor temperature, humidity, and air purification, ensuring they are within a comfort range.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If only one environmental factor variable device is controlled, then the control system remains simple, but multiple environmental factors cannot be controlled within the comfort range simultaneously, resulting in impaired comfort

Engineering Contradiction:
ImprovecomfortVSAvoidcontrol system
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The control unit is designed to control multiple environmental factor variable devices (heating element, heat absorber, fan, dehumidifier, humidifier) simultaneously, enabling the system to manage multiple environmental factors (temperature, humidity, air velocity, radiation temperature) within the comfort range. This multi-functional control capability resolves the contradiction by allowing comprehensive comfort control without requiring separate independent control systems for each device.

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

Solution Approach 2:

The system divides the control of environmental factors into separate variable devices, each responsible for specific environmental parameters. The control unit independently controls each device (heating element for temperature, dehumidifier for humidity, fan for air velocity) based on detected environmental factors, enabling precise control of multiple factors simultaneously while maintaining manageable system complexity through modular device segmentation.

Inventive Principle:
Principle #1Segmentation

2Ease of operation

If multiple environmental factor variable devices are controlled, then multiple environmental factors can be controlled within the comfort range, but the control system becomes more complex

Engineering Contradiction:
ImprovecomfortVSAvoidcontrol system
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The system employs an environmental factor detection unit that continuously monitors temperature, humidity, air velocity, and radiation temperature. The control unit receives this feedback information and automatically adjusts the operating states of multiple variable devices to maintain environmental factors within the comfort range. This feedback mechanism simplifies the control process by enabling automatic regulation, reducing the perceived complexity for the user while achieving comprehensive comfort control.

Inventive Principle:
Principle #23Feedback

Data Source

PatentEP3163202B1Air conditioning system
Publication Date: 2021.01.20 MITSUBISHI ELECTRIC CORP
  • EP3163202B1 patent drawingFigure 1~3
  • EP3163202B1 patent drawingFigure 4~6
  • EP3163202B1 patent drawingFigure 7~9

AI summary

An air-conditioning system includes an input unit that receives at least information on a human body factor, which is an element for identifying a person, and an operation mode, a plurality of variable devices that changes at least one environmental factor, which is an element for identifying an environment, and a control unit that controls the plurality of variable devices based on the information received from the input unit and that causes a plurality of the environmental factors to be within a comfort range.