Connector Ferrite Core Housing With Protrusions for Stable Retention
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Solution Overview
Problem
The existing connector configurations, such as those described in Japanese Patent Laid-open Publication No. 2005-044643, face issues where the ferrite core can easily come out rearward before the cap is engaged and may rattle even after engagement.
Innovation Solution
The proposed connector design includes a ferrite core and a housing with a receiving portion, where at least one of the inner peripheral surface of the receiving portion or the outer peripheral surface of the ferrite core features a protrusion that contacts the other surface to securely hold the ferrite core in place.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the ferrite core is placed in the through hole without a holding structure, then the assembly process is simple, but the ferrite core can easily come out rearward before cap engagement
Solution Approach 1:
The housing includes protrusions that preliminarily hold the ferrite core in position before the cap is engaged. The protrusions extend into the through hole to contact the ferrite core, preventing rearward movement during assembly and operation, while maintaining simple assembly procedure
2Device complexity
If the ferrite core is held only by cap engagement, then the structure is simple, but the ferrite core may rattle even after cap engagement
Solution Approach 1:
The holding function is segmented between two components: the protrusions on the housing provide preliminary holding and positioning, while the cap provides final securing. This segmentation allows the ferrite core to be stably held without excessive structural complexity
Data Source
AI summary
The present invention aims to stably arrange a ferrite core in a housing. A connector 10 includes a ferrite core 12, and a housing 11 including a receiving portion 20 that receives the ferrite core 12. At least one of an inner peripheral surface 23 of the receiving portion 20 and an outer peripheral surface 12A of the ferrite core 12 includes a protrusion (first protrusion 21, for example) that is in contact with the other peripheral surface so as to hold the ferrite core 12 within the receiving portion 20.