Shielding Case Frame With Precut Suction Structure
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Solution Overview
Problem
Existing shielding case frames with removable suction cups face inefficiencies in production, require high mold costs, and are prone to deformation due to complex designs and the need for specialized tools for removal.
Innovation Solution
A shielding case frame design featuring a cross-shaped suction structure with precut extension parts and a step-shaped precut part allows for rapid removal without specialized tools, improving production efficiency and structural strength.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a connecting strip structure is used for suction cup attachment, then the suction cup can be removed, but a shearing tool is needed for removal and production efficiency is low
Solution Approach 1:
The patent applies preliminary action by pre-cutting grooves in the connecting strip during the molding process. These grooves create predetermined fracture lines that allow the connecting strip to break easily when force is applied, eliminating the need for shearing tools during production and enabling rapid removal of suction cups.
2Ease of operation
If precutting treatment is conducted on molds at junctions, then suction cup removal is facilitated, but mold design and machining requirements are high and mold cost is high
Solution Approach 1:
The patent applies segmentation by dividing the connecting strip into distinct sections with different structural characteristics. The connecting strip includes a first section connected to the frame, a second section connected to the suction cup, and a fracture section between them. This segmentation allows the fracture section to be specifically designed with reduced strength for easy breaking, while other sections maintain full strength for structural integrity.
3Area of stationary object
If the frame size is large, then the shielding case can accommodate more components, but the frame is poor in strength and prone to deformation before SMT
Solution Approach 1:
The patent applies dynamics by creating a temporary but strong connection between the suction cup and the frame through the multi-section connecting strip structure. This dynamic connection provides enhanced support during the SMT process when the frame is most vulnerable to deformation, and can be easily removed afterward by breaking the fracture section without affecting the frame's structural integrity.
Data Source
AI summary
A shielding case frame has a frame main body and a suction structure. The suction structure is connected with the frame main body through at least one precut structure. The precut structure has extension parts arranged on the suction structure, a pressing part connected with the extension parts and a precut part. The pressing part is connected with the frame main body through the precut part. A bottom surface or/and a top surface of the precut part is provided with a precut groove.