Air conditioner, control method therefor and computer readable storage medium

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Solution Overview

Problem

Air conditioners experience poor refrigeration when the air out-flowing volume is small, leading to water condensation and a slowed decrease in indoor temperature due to the high operating frequency of the compressor.

Innovation Solution

The method involves detecting indoor humidity in real time and adjusting the compressor's operating frequency based on the humidity levels, determining the space's state as open or closed, and mapping the frequency to the duration or humidity change rate to prevent condensation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Speed

If the operating frequency of the AC compressor is high to rapidly decrease indoor temperature, then the refrigeration speed is improved, but water condensation occurs outside the air conditioner when air out-flowing volume is small

Engineering Contradiction:
Improverefrigeration speedVSAvoidwater condensation
Core Design Contradiction:
SpeedVSObject-affected harmful factors

Solution Approach 1:

The patent applies dynamics by making the compressor operating frequency adjustable based on air out-flowing volume conditions. When air out-flowing volume is small, the system dynamically reduces the operating frequency to prevent condensation, while allowing high frequency operation when air volume is sufficient, thus adapting the refrigeration speed to actual conditions.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent changes the operating frequency parameter of the compressor based on detected air out-flowing volume. By adjusting this key parameter, the system prevents condensation (by reducing frequency when air volume is low) while maintaining efficient refrigeration (by allowing high frequency when air volume is sufficient).

Inventive Principle:
Principle #35Parameter changes

2Use of energy by moving object

If the air out-flowing volume is small to save energy or reduce noise, then energy consumption is reduced, but the refrigeration effect becomes undeveloped due to water condensation

Engineering Contradiction:
Improveenergy consumptionVSAvoidrefrigeration effect
Core Design Contradiction:
Use of energy by moving objectVSReliability

Solution Approach 1:

The patent implements feedback control by detecting air out-flowing volume and using this information to adjust compressor operating frequency. This closed-loop control ensures that refrigeration effectiveness is maintained by preventing condensation, while still allowing energy-saving low-volume operation when conditions permit.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system dynamically adjusts compressor frequency based on real-time air out-flowing volume detection, allowing the refrigeration system to adapt its performance and energy consumption to actual cooling needs and air flow conditions.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentEP3604948B1Air conditioner, control method therefor and computer readable storage medium
Publication Date: 2023.01.25 GD MIDEA AIR CONDITIONING EQUIP CO LTD
  • EP3604948B1 patent drawingFigure 1
  • EP3604948B1 patent drawingFigure 2
  • EP3604948B1 patent drawingFigure 3

AI summary

Disclosed is a method for controlling an air conditioner, which includes the following operations: detecting an indoor humidity in real time or regularly of a space where the air conditioner is located, in response to a determination that the air conditioner is in a refrigeration mode and an air out-flowing volume of the air conditioner is less than a preset air out-flowing volume;adjusting an operating frequency of a compressor of the air conditioner according to the indoor humidity, in which the indoor humidity is proportional to the operating frequency. The present disclosure further proposes an air conditioner and a computer readable storage medium, and ensures the refrigeration effect of the air conditioner when the air output is relatively small.