Air Conditioning System Display for Rotation Operation Status Feedback

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Solution Overview

Problem

Users may misinterpret the intermittent deactivation of air conditioners during a rotation operation as an abnormal condition, leading to unnecessary worry and potential mismanagement of the air conditioning system.

Innovation Solution

The air conditioning system includes a display feature that indicates a rotation operation is in progress, distinguishing it from abnormal conditions, and activates backup units if necessary, ensuring continuous air conditioning capability and clear user feedback.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Duration of action of stationary object

If the rotation operation deactivates air conditioners sequentially to extend their life, then the service life of air conditioners is improved, but users may misinterpret the deactivation as an abnormal condition causing unnecessary worry

Engineering Contradiction:
Improveservice life of air conditionersVSAvoiduser understanding of system status
Core Design Contradiction:
Duration of action of stationary objectVSLoss of information

Solution Approach 1:

The system provides visual feedback through a display portion that shows a rotation sign when rotation operation is active. This feedback mechanism informs users that the air conditioner deactivation is intentional and part of the rotation operation, preventing misinterpretation as an abnormal condition while maintaining the extended service life benefit.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The rotation sign displayed on the display portion acts as an intermediary between the control portion and the user. It translates the internal rotation operation state into visible information that users can understand, bridging the gap between system operation and user perception.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Loss of information

If the system provides clear indication of rotation operation status, then user understanding is improved, but the device complexity increases due to additional display requirements

Engineering Contradiction:
Improveuser understanding of system statusVSAvoiddisplay system complexity
Core Design Contradiction:
Loss of informationVSDevice complexity

Solution Approach 1:

The display portion serves multiple functions: it displays the rotation sign to indicate rotation operation status, and it also displays abnormal condition signs when issues occur. This multi-functionality reduces the need for separate indicators, thereby limiting the increase in device complexity while maintaining clear user understanding.

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

3Reliability

If the display shows both rotation sign and abnormal condition sign simultaneously, then abnormal conditions are quickly recognized during rotation operation, but the display complexity increases

Engineering Contradiction:
Improveabnormal condition detection reliabilityVSAvoiddisplay system complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The display portion continuously provides useful information by showing both the rotation sign and abnormal condition sign simultaneously when both conditions exist. This continuous dual-display ensures that users can immediately recognize abnormal conditions during rotation operation without confusion, maintaining high reliability while using the existing display infrastructure.

Inventive Principle:
Principle #20Continuity of useful action

Data Source

PatentEP3064846B1Air-conditioning system
Publication Date: 2021.04.07 DAIKIN INDUSTRIES LTD
  • EP3064846B1 patent drawingFigure 1~2
  • EP3064846B1 patent drawingFigure 3
  • EP3064846B1 patent drawingFigure 4

AI summary

An air conditioning system (1) is provided with a display portion (21) which informs a user of operational states of air conditioners (10). The display portion (21) is configured to show, during a rotation operation, a rotation sign (S1) indicating that the rotation operation is being performed. This configuration allows for avoiding causing the user to worry about the air conditioner unnecessarily when the air conditioner is deactivated during the rotation operation.