Air Purifier Sensor Air Passage for Quiet Accurate Sensing
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Solution Overview
Problem
Conventional air treatment systems face challenges in maximizing efficiency while minimizing noise and size, and there is a need for improved air filtration systems that effectively address airborne pollutants and odors.
Innovation Solution
The air treatment system incorporates a sensor air passage that utilizes a low pressure region created by the blower to draw air through a sensor, a filter with a filter media and frame that can be easily attached, and a remote control for operation, along with a blower and housing that includes a gasket for sealing, and a screen with angled strands to optimize air flow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the blower draws air through the filter element in a conventional air treatment system, then air filtration is achieved, but the system generates noise and occupies space that consumers wish to minimize
Solution Approach 1:
The patent extracts the sensor from the main air treatment housing and positions it in a separate location. The sensor air passage is configured to draw air samples from the environment without requiring the sensor to be housed within the noisy blower assembly, thereby reducing noise exposure to the sensor while maintaining filtration effectiveness
Solution Approach 2:
The patent introduces an intermediary air passage system that allows the sensor to sample air indirectly through a dedicated sensor air passage rather than being directly exposed to the high-velocity air flow and noise from the blower. This intermediary pathway protects the sensor from harmful noise while still enabling effective air quality monitoring
2Measurement precision
If the sensor is positioned to directly sample air from the environment, then sensing accuracy is improved, but the sensor is exposed to high velocity air flow and noise from the blower
Solution Approach 1:
The sensor is extracted from the direct high-velocity air flow path of the blower and positioned in a separate sensor air passage. This allows the sensor to sample air at lower velocities while maintaining accurate contamination detection capability
Solution Approach 2:
The patent creates a localized low-velocity air sampling region through the sensor air passage, distinct from the high-velocity main air flow path. This local quality differentiation allows the sensor to operate in a favorable environment with reduced air flow velocity while still accurately detecting air contamination
3Reliability
If the filter element is permanently integrated into the housing, then system reliability is improved, but filter replacement and maintenance become difficult
Solution Approach 1:
The patent segments the filter element from the housing by providing a removable filter access opening. This allows the filter element to be independently removed and replaced without disassembling the entire housing, maintaining system reliability while significantly improving ease of filter maintenance
Solution Approach 2:
The patent introduces dynamic accessibility to the filter element through a removable cover or access opening. The filter transitions from a static permanently integrated component to a dynamically accessible component that can be easily removed and replaced by the user without compromising system integrity
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 enhances the efficiency and effectiveness of air filtration, reduces noise, and minimizes size, while ensuring effective removal of pollutants and odors, and allows for remote operation and easy filter replacement.
Implementation Method 1
The air forced out of the blower outlet creates a low pressure region proximate to the sensor outlet to draw ambient air through the sensor flow passage
Implementation Method 2
a sensor for sensing contamination of ambient air
Implementation Method 3
particulate filters are available to remove particulate matter from air. A conventional particulate filter includes a substance, such as fiberglass or electret-type media, that traps particulate matter as air is passed therethrough
Implementation Method 4
odor filters are available to remove odors from the air. A conventional odor filter includes activated carbon, or activated charcoal, which removes pollutants from the air primarily by adsorption
Data Source
AI summary
An air treatment system includes features for maximizing efficiency and effectiveness. In one embodiment, a sensor air passage utilizes a low pressure region created by the blower to draw air through the passage. In another embodiment, a filter frame includes a plurality of connectors formed integrally with the filter frame. In another embodiment, a screen is positioned adjacent to the blower intake. The screen includes a plurality of angled strands oriented in a particular direction. In another embodiment, a remote control holder is formed integrally with the housing. In another embodiment, a gasket is positioned between the blower and the housing, forming a seal between the blower and the housing.