Air filter and air purifier comprising same
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Solution Overview
Problem
Existing air filters suffer from reduced purification efficiency due to unfiltered air passing through empty spaces when rotated, leading to inconsistent performance.
Innovation Solution
The air filter design includes a first and second filter frame with offset chambers and overlapping empty spaces to minimize unfiltered air flow, maintaining consistent efficiency even when rotated.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the air filter is designed with overlapping empty spaces between front and rear frames, then purification efficiency is improved, but device complexity increases
Solution Approach 1:
The patent applies asymmetry by intentionally designing the front and rear filter frames with non-symmetric chamber arrangements. The front frame has chambers positioned differently than the rear frame, creating an asymmetric overlapping pattern where empty spaces align to block unfiltered air paths. This asymmetric design ensures that regardless of rotation, the overlapping empty spaces maintain their blocking function, resolving the contradiction between purification efficiency and structural simplicity.
Solution Approach 2:
The patent transitions from a single-plane filter design to a multi-dimensional overlapping structure. By stacking front and rear frames with offset chambers in the depth dimension, and positioning empty spaces to overlap when viewed from the front, the design creates a three-dimensional blocking network. This dimensional approach ensures that air cannot bypass filter material through simple rotation, improving purification efficiency while maintaining reasonable structural complexity.
2Reliability
If the air filter chambers are offset between front and rear frames, then consistent purification efficiency is maintained when rotated, but manufacturing precision requirements increase
Solution Approach 1:
The patent applies preliminary action by pre-positioning the chambers in offset patterns during the filter frame manufacturing process. The front and rear frames are manufactured with predetermined chamber locations that are intentionally offset from each other. This preliminary positioning ensures that when the frames are assembled and potentially rotated, the empty spaces will automatically align to block unfiltered air paths, maintaining consistent purification efficiency without requiring high-precision positioning during installation or use.
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 prevents deterioration in purification efficiency by minimizing unfiltered air flow and ensuring consistent performance regardless of orientation.
Implementation Method 1
an adsorption material is filled in air channels formed in each of a front frame and a rear frame, and air can be filtered by the adsorption material
Data Source
AI summary
An air filter comprises: a first filter frame in which a plurality of first chambers are formed; a second filter frame in which a plurality of second chambers are formed and which is arranged at the rear of the first filter frame; and a filter material which is accommodated in the plurality of first chambers and the plurality of second chambers to filter air, wherein the first filter frame and the second filter frame are arranged so that, when seen from the front, the center of each of the plurality of second chambers is out of line with the center of each of the plurality of first chambers, in the vertical direction.