Air conditioning system and control unit

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Solution Overview

Problem

Conventional air conditioning systems experience discomfort due to temporary indoor temperature fluctuations when the amount of air supply from the air supply fan increases, whether in summer or winter.

Innovation Solution

An air conditioning system that includes an outdoor temperature acquisition unit, indoor temperature acquisition unit, and a control unit to determine and adjust the air conditioner's operating conditions based on external and internal temperature information when increasing air supply, thereby minimizing indoor temperature changes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the amount of air supply of the air supply fan is increased, then the air supply efficiency is improved, but the indoor temperature stability deteriorates

Engineering Contradiction:

Improveair supply efficiencyVSAvoidindoor temperature stability

Core Design Contradiction:

ProductivityVSStability of the object's composition

Solution Approach 1:

The control unit predicts the future indoor temperature based on the current outdoor temperature and the planned air supply amount before the air supply fan operates. This preliminary prediction allows the air conditioner to adjust its operation in advance to compensate for the expected temperature change, thereby maintaining indoor temperature stability while allowing increased air supply.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system dynamically adjusts the air conditioner's operating conditions based on the predicted indoor temperature. When the prediction indicates a significant temperature change due to increased air supply, the control unit automatically modifies the air conditioner's output to counteract this change, creating a dynamic response that maintains temperature stability during variable air supply operations.

Inventive Principle:

Principle #15Dynamics

2Productivity

If the amount of air supply of the air supply fan is increased, then the ventilation performance is improved, but the comfort level deteriorates due to temperature fluctuations

Engineering Contradiction:

Improveventilation performanceVSAvoidtemperature fluctuation discomfort

Core Design Contradiction:

ProductivityVSObject-affected harmful factors

Solution Approach 1:

The control unit performs preliminary prediction of indoor temperature changes before the air supply fan increases its operation. Based on this prediction, the air conditioner's operating conditions are adjusted in advance to prevent temperature fluctuations that would cause discomfort, allowing the system to maintain high ventilation performance without sacrificing comfort.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system uses outdoor temperature information as feedback to predict and control indoor temperature changes. By continuously monitoring outdoor conditions and using this information to adjust air conditioner operation in response to planned air supply changes, the system eliminates temperature fluctuations that would otherwise cause discomfort while maintaining effective ventilation.

Inventive Principle:

Principle #23Feedback

Data Source

PatentUS12379129B2Air conditioning system and control unit

Publication Date: 2025.08.05 PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD

AI summary

When an instruction to request increase in the amount of air supply of air supply fan (2) is generated, operating conditions of air conditioner (3) is determined based on outdoor temperature information acquired by outdoor temperature acquisition unit (24) and indoor temperature information acquired by indoor temperature acquisition unit (32). Then, air conditioner (3) is instructed on the determined operating conditions.