Composite Fan Frame Protrusion Recess Assembly
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Solution Overview
Problem
Conventional composite fans require numerous screws for assembly, leading to increased production costs, assembly complexity, and reduced structural integrity due to thinner frames designed for screw insertion, making it difficult to use long screws for securing fans to a system.
Innovation Solution
A composite fan and frame design featuring protrusion and recess portions on opposing surfaces, allowing for easy assembly without additional screws, enhancing structural integrity and simplifying the assembly process by using a single long screw to secure frames to a system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple screws are used to assemble two fans into a composite fan, then the fans can be fastened together, but the production cost increases and the assembly process becomes complicated
Solution Approach 1:
The patent merges the fastening function into the frame structure itself by designing protrusion portions on one frame that fit into recess portions on the other frame. This integration eliminates the need for separate screw fasteners, reducing assembly complexity while maintaining reliable connection between the two fans in the composite fan assembly.
2Reliability
If multiple thin screws are used for assembly, then the fans can be connected, but the screws are easily lost and require tools for assembly
Solution Approach 1:
The fastening function is merged into the frame structure through protrusion and recess portions that interlock directly. This eliminates the need for separate thin screws that are prone to being lost and require tools, making the assembly process more convenient while maintaining reliable connection between fans.
3Ease of operation
If the frames are designed with holes for screw insertion, then screws can be inserted easily, but the frames become thinner and structurally weaker
Solution Approach 1:
The frame structure is designed with integrated protrusion and recess portions that provide fastening functionality without requiring holes. This maintains the structural integrity and thickness of the frames while enabling easy assembly through the interlocking geometric features.
4Productivity
If multiple fans are assembled using conventional screw methods, then sufficient airflow can be provided, but the assembly requires many screws passing through multiple holes
Solution Approach 1:
The patent simplifies the assembly process for multi-fan configurations by using frames with integrated protrusion and recess portions. This eliminates the need for multiple screws passing through multiple holes, reducing assembly complexity while maintaining the capability to provide sufficient airflow through proper fan arrangement.
Data Source
AI summary
A composite fan frame includes a first frame and a second frame. The first frame has a first surface formed with at least one first protrusion portion. The second frame has a second surface formed with at least one first recess portion. When the first surface touches the second surface, the first protrusion portion is inserted into the first recess portion along a predetermined sliding direction such that the first frame and the second frame are combined. Also, a composite fan having the composite fan frame is disclosed.