Air purifier
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Solution Overview
Problem
Conventional air purifiers face challenges in balancing air purification efficiency with user comfort, as they often fail to consider the impact of purifying materials like ozone or ions on individuals in the room, leading to reduced efficiency and potential discomfort.
Innovation Solution
An air purifier with a casing, blower, decontamination unit, air ducts, wind direction adjustment mechanisms, and a control system that includes human detection and ozone generation, allowing for dynamic control of ozone generation and air direction to minimize exposure to purifying materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If purifying material is used to purify the inside of the apparatus and blowing operation is performed, then air purification efficiency is improved, but the purifying material remaining in blown air may negatively influence persons in the room
Solution Approach 1:
The patent implements dynamic control of the blowing operation by detecting human presence and adjusting the air flow accordingly. The control unit varies the blowing operation parameters based on detected human presence, allowing efficient purification when no humans are present while reducing purifying material exposure when humans are in the room.
Solution Approach 2:
The patent employs human detection means that provides feedback to the control unit about human presence in the room. This feedback mechanism enables the system to automatically adjust the blowing operation and purifying material generation to balance purification efficiency with human safety and comfort.
2Object-affected harmful factors
If too much consideration is given to the influence of purifying material on person, then user comfort is improved, but blowing operation and blowing area are excessively limited which reduces air purification efficiency
Solution Approach 1:
The system dynamically adjusts the blowing operation based on real-time human presence detection. When no humans are detected, the system performs aggressive blowing operations for maximum purification efficiency. When humans are detected, the system modulates the operation to reduce purifying material exposure while maintaining acceptable purification performance.
Solution Approach 2:
The patent implements alternating operations between purifying material generation and blowing operations. The control unit alternates these operations based on human presence detection, allowing the purifying material to be generated and distributed periodically rather than continuously, which reduces cumulative exposure to humans while maintaining purification effectiveness over time.
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
Enables efficient air purification while ensuring user comfort by adjusting ozone generation and air direction based on human presence, effectively balancing operation efficiency and safety.
Implementation Method 1
a purifying material generation means configured to generate a purifying material in the casing
Implementation Method 2
a blower for drawing air from the inlet into the casing and blowing the air out of the outlet
Data Source
AI summary
An air purifying operation is performed with a consideration for an influence of a purifying material on a person, and user's comfort and efficiency of the air purifying operation are both achieved. An air purifier includes a casing, an inlet, outlets, blowers, a decontamination unit, air ducts, movable louvers, a horizontal rotation mechanism, an ozone generation mechanism, human detection means, a control unit, or the like. The control unit detects whether or not there is a person in a room by the human detection means. Then, the control unit controls at least one of parameters including an ozone generation amount, a wind direction, an amount, and a speed of blown-out air based on the human detection result. Thus, if there is a person in the room, for example, a human avoiding operation, a human area operation, or the like can be performed. If there is no person, an indoor air purifying operation for uniformly purifying air throughout the room can be performed.