A ceiling type air conditioner and controlling method thereof

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing ceiling type air conditioners take longer to reach a desired indoor air conditioning environment and provide uneven temperature and airflow distribution, especially in natural wind mode, leading to increased time to achieve a pleasant temperature and airflow similar to natural wind.

Innovation Solution

The method involves controlling discharge vanes on a ceiling type air conditioner to rotate through specific angle groups, guiding airflow closer to the ceiling or floor, creating a whirlwind effect that rapidly mixes indoor air and provides uniform temperature distribution, with the controller managing the rotation angles and cycles to simulate natural wind patterns.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the discharge vanes rotate through specific angle groups to create natural wind effect, then user comfort and pleasant feeling are improved, but the time required to reach desired indoor air conditioning environment is excessively increased

Engineering Contradiction:
Improveuser comfortVSAvoidtime to reach air conditioning environment
Core Design Contradiction:
Ease of operationVSLoss of time

Solution Approach 1:

The discharge vanes perform periodic rotation through four angle groups (first, second, third, fourth) in a cyclic manner. Each angle group corresponds to a specific rotation angle range, and the vanes sequentially move through these groups to create natural wind effect while maintaining efficient air conditioning performance.

Inventive Principle:
Principle #19Periodic action

Solution Approach 2:

The discharge vanes are designed to dynamically adjust their rotation angles by moving through different angle groups. This dynamic adjustment allows the system to switch between different airflow patterns, creating natural wind effect when needed while maintaining rapid cooling/heating capability during other phases.

Inventive Principle:
Principle #15Dynamics

2Ease of operation

If the discharge vanes are stopped or rotated at low speed periodically to simulate natural wind, then natural wind characteristics are achieved, but the time required to decrease or increase indoor temperature is remarkably increased

Engineering Contradiction:
Improvenatural wind characteristicsVSAvoidtemperature adjustment speed
Core Design Contradiction:
Ease of operationVSSpeed

Solution Approach 1:

The system implements periodic action by alternating between different vane rotation states. During certain periods, the vanes rotate through angle groups to create natural wind effect, while during other periods, they maintain positions that optimize temperature adjustment speed, thus balancing both requirements.

Inventive Principle:
Principle #19Periodic action

Solution Approach 2:

The discharge vanes dynamically change their rotation speed and position by transitioning through different angle groups. This allows the system to adapt between natural wind simulation mode (slower rotation) and rapid temperature adjustment mode (faster or stationary positioning), resolving the contradiction between the two opposing requirements.

Inventive Principle:
Principle #15Dynamics

3Ease of operation

If the discharge vanes rotate to provide airflow similar to natural wind, then pleasant feeling is improved, but the temperature distribution and airflow distribution in indoor space become uneven

Engineering Contradiction:
Improvepleasant feelingVSAvoidtemperature distribution uniformity
Core Design Contradiction:
Ease of operationVSStability of the object's composition

Solution Approach 1:

The rotation range of the discharge vanes is segmented into four distinct angle groups. Each angle group covers a specific rotation angle range and directs airflow to different areas of the indoor space. By sequentially activating different angle groups, the system ensures comprehensive and uniform air distribution while maintaining natural wind characteristics.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The discharge vanes periodically cycle through the four angle groups, ensuring that different regions of the indoor space receive airflow at different time intervals. This periodic distribution pattern prevents localized overheating or over-cooling and achieves uniform temperature distribution across the entire space while maintaining pleasant natural wind effect.

Inventive Principle:
Principle #19Periodic action

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 approach improves user comfort by rapidly forming airflow similar to natural wind, reducing the time to reach set temperatures, and minimizing vertical temperature differences, thus enhancing the pleasant feeling and uniformity of the indoor environment.

Implementation Method 1

creating a whirlwind effect that rapidly mixes indoor air and provides uniform temperature distribution

Methodology Applied
Scientific EffectWhirlwind effect: Vortex Ring

Data Source

PatentEP3575697B1A ceiling type air conditioner and controlling method thereof
Publication Date: 2023.07.26 LG ELECTRONICS INC
  • EP3575697B1 patent drawingFigure 1
  • EP3575697B1 patent drawingFigure 2
  • EP3575697B1 patent drawingFigure 3

AI summary

A method of controlling a ceiling type air conditioner including a panel located on a ceiling surface, outlets formed to correspond to four sides of the panel, and first to fourth discharge vanes for opening and closing the outlets, and each of the first to fourth discharge vanes including an upper discharge vane and a lower discharge vane located below the upper discharge vane and rotating along with the upper discharge vane includes performing first operation, performing second operation, performing third operation, and performing fourth operation in which the first discharge vane rotates in the second angle group, the second discharge vane rotates in the third angle group, the third discharge vane rotates in the fourth angle group and the fourth discharge vane rotates in the first angle group. The first to the fourth angle groups are set such that rotation angles of the discharge vanes have different ranges.