Fan Impeller Hub Securing Sections for Magnetic Member Assembly
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Solution Overview
Problem
Conventional DC brushless fan manufacturing processes are complicated and time-consuming due to the precise positioning and spacing requirements of tile-shaped permanent magnetic irons within the hub, leading to increased working time and defective products.
Innovation Solution
A fan impeller structure with a hub featuring recesses and securing sections allows for the quick assembly and securement of magnetic members via injection molding, simplifying the manufacturing process and reducing assembly time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If tile-shaped permanent magnetic irons are assembled with the hub using multiple securing members or tools for precise positioning, then the positioning precision of magnetic irons is improved, but the device complexity and manufacturing process complexity increase
Solution Approach 1:
The securing members are integrated into the hub as a unified structure rather than separate components. The hub includes securing grooves and positioning structures that are molded as part of the hub itself, eliminating the need for separate securing members and simplifying the manufacturing process while maintaining precise positioning of magnetic irons.
Solution Approach 2:
The hub is pre-formed with integrated securing structures (securing grooves and positioning features) during the molding process. This preliminary preparation of positioning structures eliminates the need for complex assembly operations and additional securing members during subsequent manufacturing steps.
2Manufacturing precision
If tile-shaped permanent magnetic irons are assembled with the hub using multiple securing members or tools, then the positioning precision of magnetic irons is improved, but the working time increases
Solution Approach 1:
The securing members are integrated into the hub as a unified structure rather than separate components. The hub includes securing grooves and positioning structures that are molded as part of the hub itself, eliminating the need for separate securing members and simplifying the manufacturing process while maintaining precise positioning of magnetic irons.
Solution Approach 2:
The hub is pre-formed with integrated securing structures (securing grooves and positioning features) during the molding process. This preliminary preparation of positioning structures eliminates the need for complex assembly operations and additional securing members during subsequent manufacturing steps.
3Manufacturing precision
If tile-shaped permanent magnetic irons are assembled with the hub using multiple securing members or tools, then the positioning precision of magnetic irons is improved, but the ratio of defective products increases
Solution Approach 1:
The securing members are integrated into the hub as a unified structure rather than separate components. The hub includes securing grooves and positioning structures that are molded as part of the hub itself, eliminating the need for separate securing members and simplifying the manufacturing process while maintaining precise positioning of magnetic irons.
Solution Approach 2:
The hub is pre-formed with integrated securing structures (securing grooves and positioning features) during the molding process. This preliminary preparation of positioning structures eliminates the need for complex assembly operations and additional securing members during subsequent manufacturing steps.
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 manufacturing process, reduces working time, and increases the production of high-quality fan impellers with improved heat dissipation capabilities.
Implementation Method 1
placing the hub into a mold with at least one mold cavity, by means of injection molding, a plastic material being filled through two through holes formed on opposite sides of each recess into the hub to form multiple securing sections on inner circumference of the hub
Data Source
AI summary
A fan impeller structure and a manufacturing method thereof. The fan impeller structure includes a hub and multiple securing sections. The hub has a top section, an annular section and multiple recesses. The annular section axially extends from a circumference of the top section. The annular section and the top section together define a receiving space. The recesses are formed at a junction between the top section and the annular section. The securing sections are disposed in the receiving space and formed oppositely between the recesses. The manufacturing method of the fan impeller structure enables the manufacturing process to be simplified. Moreover, by using the securing sections, magnetic members can be quickly connected with and secured to inner circumference of the hub to save working time.