Air purification device
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Solution Overview
Problem
Conventional air purification devices and smoke-proof filtering masks serve different purposes, making it difficult to find a universally applicable filter material that can handle both dust removal and smoke filtration, which is essential for both indoor air purification and emergency smoke protection.
Innovation Solution
An air purification device with a detachable filtering mask system that includes a first and second filtration member, allowing for two configuration modes: one for indoor air purification and another for smoke protection, where the filtration members can be moved into fluid communication to provide effective filtration in smoky environments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single filter material is used for both air purification and smoke filtration, then device complexity is reduced, but filtration effectiveness for both purposes cannot be achieved
Solution Approach 1:
The filter assembly is segmented into multiple independent filter materials (first filter material for dust removal, second filter material for smoke filtration) arranged in series. Each filter material is positioned at a different location within the air passage, allowing them to function independently for their respective purposes while maintaining overall system effectiveness.
Solution Approach 2:
The air purification device achieves multi-functionality by integrating both dust removal and smoke filtration capabilities into a single device. The device can operate in different modes: normal air purification using the first filter material, and smoke protection mode where both filter materials work together, making it universally applicable for both indoor air quality and emergency smoke protection.
2Reliability
If different filter materials are used for dust removal and smoke filtration, then filtration effectiveness is improved, but device complexity increases
Solution Approach 1:
Multiple filter materials with different functions are merged into a single integrated filter assembly. The first filter material and second filter material are arranged in sequence within the same air passage, allowing them to work together in a unified structure rather than as separate devices.
Solution Approach 2:
The filter assembly采用嵌套结构，将第二过滤材料设置在第一过滤材料的下游位置，形成层层嵌套的过滤系统。这种嵌套设计使得不同功能的过滤材料能够在有限的空间内协同工作，既实现了多重过滤功能，又避免了设备结构的过度复杂化。
3Reliability
If air purification device is used for smoke protection, then personal protection is improved, but the device cannot be worn for portability
Solution Approach 1:
The filter assembly is designed as a detachable component that can be extracted from the air purification device body. This allows the filter assembly to be separately used as a portable filtering mask when needed, while the main device body retains its air purification function. The extraction mechanism enables flexible deployment of the filter assembly for different usage scenarios.
4Reliability
If the device is designed for fixed position ventilation, then air purification performance is improved, but it cannot be used for mobile smoke protection
Solution Approach 1:
The device incorporates dynamic configurability through the detachable filter assembly and adjustable air passage structure. The air passage can be configured in different states (open or closed) depending on the usage scenario. When the air passage is closed, the device functions as a portable filtering mask for smoke protection; when open, it operates as a fixed air purifier, providing adaptability across different usage scenarios.
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
The device integrates the functionality of a filtering mask into an air purification system, enabling effective air filtration both indoors and in smoky conditions, enhancing safety by providing a dual-purpose solution for ventilation and personal protection.
Implementation Method 1
a fan disposed in the casing
Implementation Method 2
the filtering mask has a first filtration member and a second filtration member
Data Source
AI summary
An air purification device includes a casing with an air inlet portion, an air outlet portion, and an air-guiding portion coupled in fluid communication between the air inlet portion and the air outlet portion; at least one filtering mask detachably disposed in a space defined by the casing, wherein the filtering mask has a first filtration member and a second filtration member movably combined; wherein in a first configuration mode, the air inlet portion, the first filtration member, and the air-guiding portion are in a first fluid-communication state, and the second filtration member is in a fluid-closed state; in a second configuration mode, the first filtration member and the casing are in a mutually separated state, and the first filtration member and the second filtration member are in a second fluid-communication state; and a fan disposed inside the casing.