Air conditioner
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Solution Overview
Problem
Conventional air conditioners face challenges in efficiently controlling air flow and temperature distribution, leading to discomfort for users due to direct air discharge, increased noise, and slow cooling rates, especially when trying to cool or heat an indoor space at minimal fan speed.
Innovation Solution
The air conditioner features a housing with multiple blowing ports and doors that can be opened or closed, along with a guide blade to direct airflow, allowing for varied airflow direction, velocity, and temperature distribution without direct air discharge to the user, enabling comfortable indoor space cooling and heating.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the blowing fan rotational speed is increased to achieve fast air velocity, then cooling rate is improved, but noise increases
Solution Approach 1:
The blowing fan is divided into multiple independent blades that can rotate at different speeds. This allows the system to achieve fast air velocity through selective blade rotation while other blades remain stationary or rotate slower, significantly reducing noise generation during high-speed operation
Solution Approach 2:
The blowing fan implements dynamic speed control where different blades rotate at different speeds based on operational requirements. This dynamic adjustment enables the system to maintain effective cooling performance while optimizing noise levels by not all blades rotating at maximum speed simultaneously
2Productivity
If a large panel is used in radiant air conditioner to implement identical performance, then cooling performance is improved, but construction costs increase
Solution Approach 1:
The patent replaces the conventional large-panel radiant cooling system with a blowing fan-based forced convection system. This substitution achieves identical or superior cooling performance through mechanical air movement rather than relying on large thermal mass panels, thereby reducing construction costs and material requirements
Solution Approach 2:
The system uses pneumatic principles by employing a blowing fan to force air circulation through the indoor space. This approach achieves efficient heat transfer and cooling performance through controlled air flow dynamics rather than relying on large thermal storage panels, reducing overall system complexity and cost
3Productivity
If air is discharged directly to indoor space for fast cooling, then cooling rate is improved, but user comfort decreases due to cold air contact
Solution Approach 1:
Different blades of the blowing fan are assigned different rotational speeds to create varied air flow characteristics. Some blades generate high-velocity streams for rapid cooling in specific zones, while other blades produce gentler air movement in user areas, achieving both fast cooling and comfort through localized quality differentiation
Solution Approach 2:
The system dynamically adjusts the rotational speed of individual fan blades based on real-time environmental conditions and user proximity detection. This allows the air conditioner to optimize between fast cooling mode and comfort mode, varying the air discharge characteristics to match operational requirements and prevent user discomfort
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 configuration allows for customizable airflow and temperature distribution, improving user comfort by varying airflow velocity and direction, reducing noise, and enhancing cooling/heating efficiency without direct air discharge, thus providing effective indoor air conditioning.
Implementation Method 1
a blowing fan configured to suction air into the housing to flow the air to the first blowing port or the second blowing port
Implementation Method 2
an indoor unit and an outdoor unit are separately installed... a heat exchanger configured to exchange heat with air introduced into a panel
Data Source
AI summary
An air conditioner includes a heat exchanger configured to exchange heat with air introduced into a housing and a blowing fan configured to blow the air which is heat-exchanged with the heat exchanger to outside of the housing. The air conditioner may control a first and a second doors configured to open or close a first and second blowing ports provided in the housing and a guide blade configured to control paths in the housing, so that the air conditioner may blow the air of various flow.