Bobbin With Through Hole Eliminates Gear For Filter Winding
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Solution Overview
Problem
Existing filter components with gears for winding wire around a bobbin require additional space, leading to increased size and inefficiency.
Innovation Solution
A filter component design that allows wire winding without a gear by using a bobbin with a through hole formed by assembling two members, where the core's extension parts prevent rotation around the bobbin's axis, enabling easy wire winding and miniaturization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a gear is used for winding wire around the bobbin, then the wire winding function is achieved, but the filter component size increases due to the extra region needed for accommodating the gear
Solution Approach 1:
The patent removes the gear component entirely from the system. Instead of using a gear mechanism for wire winding, the invention uses a simplified bobbin structure with a through hole that allows the wire to be wound directly without requiring any gear-based transmission mechanism, thereby eliminating the extra region needed for gear accommodation
Solution Approach 2:
Rather than using a gear to drive the winding process, the invention inverts the approach by allowing the wire to be wound directly through the through hole of the bobbin. The core's extension parts prevent rotation around the bobbin's axis, ensuring proper winding without requiring a gear mechanism to control the motion
2Reliability
If a gear is used for winding wire, then the winding mechanism is robust, but the device complexity increases due to additional components
Solution Approach 1:
The gear component is completely extracted from the system. The patent achieves reliable wire winding without any gear mechanism by using the bobbin's through hole in combination with the core's extension parts that prevent unwanted rotation, thereby reducing device complexity while maintaining functional reliability
Solution Approach 2:
The bobbin structure itself provides the winding function through its through hole, and the core's extension parts automatically prevent rotation around the bobbin's axis. This self-service mechanism eliminates the need for external gear components to control the winding process, simplifying the overall device structure
Data Source
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AI summary
A filter component (100) includes a bobbin (10) comprising a first member (10a) connected to a second member (10b) so that a through hole (11) is formed in a center of the bobbin (10). The through hole (11) extends in a first direction. The filter component includes a core (30) having a quadrangular frame shape. The core is configured with first, second, third and fourth extension bars (31, 32, 33, 34). The first and second extension bars (31, 32) extend in parallel in the first direction. The third and fourth extension bars (33,34) extend in parallel in a second direction, perpendicular to the first direction. A winding (40) is wound around the bobbin (10). The first and second members (10a,10b) of the bobbin have respective recesses (11a,11b), that configure the through hole (11) and the first extension bar (31) is disposed in the through hole (11). A rotation prevention member (19) formed on the outside surface of the bobbin (10), prevents rotation of the core (30) around the first extension bar (31).