Filter holder, filter assembly, and air purifier comprising same
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Solution Overview
Problem
Existing foldable filter holders for air purifiers have complex hinge structures, increasing manufacturing costs and reducing air purifier efficiency due to difficulties in maintaining the folded or unfolded state during transport and use.
Innovation Solution
A filter holder with a folding member that rotatably connects adjacent filter frames, featuring a flexible folding portion, edge portions, hooking portions, and auxiliary hooks to securely engage and maintain the filter frames in position, allowing easy mounting and preventing arbitrary folding or unfolding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a complicated hinge structure is used to enable folding of the filter frame, then the filter frame can be folded or unfolded as needed, but the manufacturing cost increases and it is inconvenient to mount the filter frame to the air purifier
Solution Approach 1:
The filter frame is divided into multiple detachable linkages that can be separated into first and second portions. These portions connect through simple engagement features rather than complex hinges, allowing the frame to be folded for transport yet simple enough for easy manufacturing and mounting.
2Volume of moving object
If the filter frame is made foldable to reduce transport volume, then the volume occupied during transport is reduced, but it becomes difficult to maintain the folded or unfolded state without a special device
Solution Approach 1:
The linkage incorporates self-latching features including protrusions and recesses that automatically engage to maintain the frame in either folded or unfolded states. The elastic member provides automatic locking without requiring external devices or complex mechanisms, allowing the frame to self-maintain its configuration state.
Solution Approach 2:
The elastic member is pre-loaded to provide a locking force that prevents the linkage from collapsing or unfolding unintentionally. This preliminary mechanical advantage ensures the frame remains stable in its intended configuration without requiring active control or additional stabilization devices.
3Stability of the object's composition
If a means for preventing free rotation of the filter frame is separately provided, then the filter frame can be prevented from arbitrary folding or unfolding, but the manufacturing cost increases and it is inconvenient to mount the filter frame to the air purifier
Solution Approach 1:
The anti-rotation and stabilization functions are merged into the linkage structure itself rather than being separate components. The protrusion-recess engagement features and elastic member are integrated into the linkage design, eliminating the need for separate prevention mechanisms and reducing overall device complexity while maintaining frame stability.
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 solution simplifies the structure, reduces manufacturing costs, and maintains the filter frame's engagement even during multiple rotations, enhancing air filtration efficiency and ease of transport while minimizing volume.
Implementation Method 1
a folding portion having a predetermined thickness and having flexibility to allow the folding portion to be folded by rotation of the adjacent filter frames with respect to each other
Implementation Method 2
the edge portions have a thickness greater than that of the folding portion when viewed in a cross-section of the folding member
Data Source
AI summary
A filter holder comprises: a plurality of filter frames disposed such that at least some thereof are adjacent to each other; and a folding member which supports filter frames, from among the plurality of filter frames, adjacent to each other so as to be rotatable with respect to each other. The folding member comprises: a folding part which has a predetermined thickness and is flexible so as to be foldable by means of rotation of the adjacent filter frames adjacent with respect to each other; and a plurality of edge parts which are connected to the respective sides of the folding part with the folding portion therebetween and rotate together with the adjacent filter frames, and wherein when viewed from a cross-section of the folding member, the edge parts may have a greater thickness than the folding part.