Air conditioner and operation method thereof

Solution Overview

Problem

Existing air conditioners face challenges in maintaining target indoor temperatures due to air convection between indoor and adjacent spaces, leading to inefficient operation and increased power consumption.

Innovation Solution

The air conditioner incorporates an indoor temperature sensor to detect changes in indoor temperature, allowing the controller to determine if the space is communicating with another space. Based on these changes, the air conditioner can switch to power-saving operation or normal operation, and adjust the discharge port settings to optimize airflow and energy usage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the air conditioner continues to operate to bring the indoor temperature to the target value when the indoor space communicates with another space, then the indoor temperature control is maintained, but unnecessary power is consumed

Engineering Contradiction:
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The air conditioner uses an indoor temperature sensor to continuously monitor temperature changes and provides feedback to the control unit. When the temperature change exceeds a predetermined threshold, the system determines that space communication exists and automatically adjusts operation mode to power-saving mode, resolving the contradiction between maintaining temperature control and reducing power consumption

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system dynamically adjusts its operation mode based on real-time temperature monitoring. It transitions between normal operation and power-saving operation depending on whether space communication is detected, allowing the system to adapt its behavior to current conditions rather than operating statically

Inventive Principle:
Principle #15Dynamics

2Use of energy by moving object

If the air conditioner operates in power-saving mode when indoor space communicates with another space, then power consumption is reduced, but the indoor temperature may not reach the target value

Engineering Contradiction:
Core Design Contradiction:
Use of energy by moving objectVSReliability

Solution Approach 1:

The continuous temperature monitoring and feedback mechanism ensures that when space communication is detected, the system switches to power-saving mode appropriately. The feedback loop allows the system to recognize when to reduce operation and when to resume normal operation based on temperature changes

Inventive Principle:
Principle #23Feedback

3Speed

If the air conditioner discharges air directly into the indoor space, then the cooling or heating effect is immediate, but the air does not flow uniformly throughout the space

Engineering Contradiction:
Core Design Contradiction:
SpeedVSStability of the object's composition

Solution Approach 1:

The discharge port is configured to direct air flow along the ceiling surface rather than directly into the room space. This changes the dimension of air flow from vertical downward to horizontal along the ceiling, allowing the air to spread uniformly across the space before descending, thus achieving both speed and uniformity

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

This solution enables the air conditioner to uniformly cool or heat the indoor space, reduce unnecessary power consumption when communication with adjacent spaces occurs, and maintain requested operations when communication is blocked.

Implementation Method 1

an indoor temperature sensor configured to detect an indoor temperature in an indoor space in which the indoor unit is disposed

Methodology Applied
Scientific EffectTemperature detection:

Implementation Method 2

an indoor unit, which includes a heat exchanger and is installed in an indoor space

Methodology Applied
Scientific EffectHeat exchange: Heat Exchanger

Implementation Method 3

As the refrigerant expands and is vaporized in the heat exchanger of the indoor unit, ambient temperature is lowered

Methodology Applied
Scientific EffectRefrigerant evaporation and condensation: Phase Change

Implementation Method 4

as a fan of the indoor unit operates, cold air is discharged to the indoor space

Methodology Applied
Scientific EffectForced convection: Forced Convection

Data Source

PatentEP4563905A1Air conditioner and operation method thereof
Publication Date: 2025.06.04
  • EP4563905A1 patent drawingFigure 1
  • EP4563905A1 patent drawingFigure 2
  • EP4563905A1 patent drawingFigure 3

AI summary

Disclosed are an air conditioner and an operation method thereof. The air conditioner includes an indoor unit, an indoor temperature sensor configured to detect an indoor temperature in an indoor space in which the indoor unit is disposed, and a controller configured to monitor the indoor temperature using the indoor temperature sensor. If the indoor temperature changes by a first reference temperature or more, the controller commences power-saving operation, and if the indoor temperature changes by a second reference temperature or more while the power-saving operation is performed, the controller stops the power-saving operation.