Filter Frame Clamping Structure for Glue-Free Assembly
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Solution Overview
Problem
Conventional filter frames require gluing of filter material to frame bars, which leads to difficulties such as breakage, deformation, and glue overflow due to narrow gaps and extrusion during gluing.
Innovation Solution
A filter frame with a clamping structure featuring clamping members and covering plates to securely fix the filter material, eliminating the need for gluing, and reducing glue overflow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the filter material is placed close to the frame to reduce gap, then the adhesion strength is improved, but the gluing process becomes difficult and causes breakage, deformation, and glue overflow
Solution Approach 1:
The frame is divided into multiple segments including long frame bars, short frame bars, and multiple side walls that extend inward. This segmentation creates a structured framework that holds the filter material in place through geometric interlocking rather than relying solely on gluing, thereby reducing the gap while maintaining adhesion strength and easing the manufacturing process
Solution Approach 2:
The side walls extend from the inner looped side toward the center of the frame, adding a vertical dimension to the structure. This creates multiple levels of support that secure the filter material in three-dimensional space, allowing close placement to the frame without compromising gluing feasibility and reducing deformation risks
2Manufacturing precision
If the gluing nozzle is inserted into the narrow gap for smooth gluing, then the adhesion quality is improved, but the filter material and frame are subjected to extrusion causing breakage and deformation
Solution Approach 1:
The side walls are pre-configured to extend inward from the frame, creating preliminary support structures that hold the filter material in the correct position before gluing begins. This preliminary positioning eliminates the need to force the gluing nozzle into narrow gaps, maintaining adhesion quality while preventing extrusion-induced damage
Solution Approach 2:
The side walls act as intermediary structures between the frame and the filter material. These intermediate elements provide support and spacing that facilitate the gluing process, allowing the nozzle to apply adhesive evenly without direct contact that would cause extrusion and structural damage
3Adaptability or versatility
If the filter material is made softer for flexibility, then the adaptability is improved, but the stability during assembly deteriorates
Solution Approach 1:
The frame structure provides rigid local support through its multiple side walls and bar configuration, while the filter material maintains its soft, flexible properties. This local quality differentiation allows the material to be adaptable and flexible where needed while being stabilized by the rigid frame structure during assembly and operation
Data Source
AI summary
A filter frame with a clamping structure includes a frame and multiple side walls formed on the inner looped side. Each side wall is adjacent to the front side and the rear side respectively. There are two clamping members respectively placed on the inner looped sides of the left side and the right side of the frame. The clamping members are configured to clamp the filter material within the frame. Therefore, when the filter material is placed in the frame, the clamping members on both sides can extend into the space between the two closest pieces of the filter material on both sides, allowing the closest piece of the filter material to be clamped and tightly attached to the short frame bars.