Air conditioning and sterilization system

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Solution Overview

Problem

Existing air conditioning and ventilation systems struggle to efficiently manage ventilation and sterilization in buildings, leading to issues such as contamination from external air and high installation and maintenance costs due to separate room-based equipment.

Innovation Solution

An integrated air conditioning and sterilization system with a centralized air conditioning room that includes ventilation and sterilization means, utilizing ultraviolet rays to sterilize air and generate ozone, and a control unit for gas concentration management, eliminating the need for separate room-based equipment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If separate air conditioners and sterilization devices are installed in each room, then sterilization of circulating air can be achieved, but installation cost and device complexity increase

Engineering Contradiction:
Improvesterilization effectivenessVSAvoidnumber of devices per room
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines air conditioning and sterilization functions into a single centralized system located in the air conditioning room. The sterilization device is integrated with the air conditioning equipment, eliminating the need for separate devices in each room while maintaining sterilization effectiveness through UV irradiation of air in the central air conditioning room before distribution to rooms.

Inventive Principle:
Principle #5Merging (Combining)

2Reliability

If ventilation is performed frequently to meet air quality standards, then air quality improves, but power consumption increases

Engineering Contradiction:
Improveair qualityVSAvoidpower consumption
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent employs gas sensors to detect air quality parameters (CO2 concentration, formaldehyde, TVOC) in real-time and provides feedback to the control unit. The control unit adjusts ventilation frequency and intensity based on actual air quality conditions, performing ventilation only when necessary to maintain air quality standards, thereby reducing unnecessary power consumption while ensuring air quality compliance.

Inventive Principle:
Principle #23Feedback

3Reliability

If external air is introduced for ventilation, then air quality in rooms improves, but contamination from external air may occur

Engineering Contradiction:
Improveair qualityVSAvoidexternal contamination
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent implements preliminary sterilization of external air through UV irradiation in the air conditioning room before the air is distributed to individual rooms. The sterilization device irradiates air with ultraviolet light (254nm wavelength) to kill bacteria and viruses, ensuring that external air introduced for ventilation is sterilized before entering the living spaces, thus preventing contamination while maintaining air quality.

Inventive Principle:
Principle #10Preliminary action

4Ease of manufacture

If sterilization is performed only in supply air, then installation cost is reduced, but bacteria and viruses brought into rooms cannot be sterilized

Engineering Contradiction:
Improveinstallation costVSAvoidsterilization coverage
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The patent designs the centralized air conditioning room to serve multiple functions: it acts as both a sterilization chamber and a distribution hub for all rooms. The sterilization device in the air conditioning room sterilizes air that is then distributed to multiple rooms through the air conditioning system, achieving comprehensive sterilization coverage for all rooms through a single installation point rather than requiring separate sterilization devices in each room.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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

Facilitates efficient ventilation and sterilization with reduced power consumption and installation costs, while ensuring air quality and safety by collectively managing air conditioning and sterilization processes.

Implementation Method 1

The sterilization means irradiates an air inside the air conditioning room with an ultraviolet ray having a wavelength of 254 nm as a dominant wavelength to sterilize the air

Methodology Applied
Scientific EffectUltraviolet irradiation: Radiation

Implementation Method 2

The blower supplies the sterilized air to each of the rooms and discharges the air from the exhaust port by making each of the rooms have a positive pressure and the air conditioning room have a negative pressure

Methodology Applied
Scientific EffectPressure difference: Pressure Gradient

Data Source

PatentUS20250207792A1Air conditioning and sterilization system
Publication Date: 2025.06.26 MATSUEI CONSTRUCTION INC
  • US20250207792A1 patent drawing
  • US20250207792A1 patent drawing

AI summary

In an air conditioning and sterilization system, air supply ports and exhaust ports are provided to rooms of a building, respectively, air supply pipes and exhaust pipes are connected to the air supply ports and the exhaust ports, an air conditioning room is between the air supply pipes and the exhaust pipes to adjust temperature and humidity of an air, and the air is circulated in each of the rooms. The air conditioning room includes ventilation means that introduces external air into the air conditioning room, sterilization means that irradiates the air inside the air conditioning room with an ultraviolet ray having a dominant wavelength of 254 nm to sterilize the air, and a blower that supplies the sterilized air to each of the rooms and discharges the air from the exhaust ports by making each room have a positive pressure and the air conditioning room have a negative pressure.