Optical Fiber Cable Reel for Wave Soldering Fixation
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Solution Overview
Problem
The assembly of residential gateways with fiber optic communication interfaces faces issues such as reduced cable diameter and degradation during the winding and soldering processes, leading to potential damage and decreased communication performance.
Innovation Solution
A reel system for winding fiber optic cables, featuring a winding support, holding means to secure the cable, first fixing means for lateral positioning on an electrical card, and second fixing means for flat attachment, allowing for secure cable management and wave soldering without diameter reduction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the cable is pulled to secure it to the circuit board, then the cable is fixed in position, but the diameter of the coil is reduced causing cable damage and decreased communication performance
Solution Approach 1:
The patent introduces a reel as an intermediary device between the cable and the circuit board. The reel has a recess that receives the coiled cable and maintains its diameter, while fixing means secure the reel to the circuit board. This mediator prevents direct pulling of the cable that would reduce coil diameter, thus protecting communication performance while achieving secure fixation.
2Stability of the object's composition
If the cable remains on the circuit board during soldering, then cable positioning is maintained, but the cable is subjected to handling that degrades it
Solution Approach 1:
The patent segments the cable fixation system into two independent parts: the reel that holds the cable, and the fixing means that attaches to the circuit board. During soldering, only the reel is present on the circuit board while the cable remains wound on the reel, isolating the cable from harmful soldering heat and handling. The reel can be secured using the first fixing means for lateral positioning or second fixing means for flat positioning, maintaining cable stability without exposing it to degradation risks.
3Ease of manufacture
If the reel is positioned laterally on the electrical board, then wave soldering can be performed, but the reel must be securely fixed
Solution Approach 1:
The patent provides two modes of reel positioning that can be selected based on manufacturing requirements: lateral positioning using the first fixing means (protrusions engaging with recesses) for wave soldering access, and flat positioning using the second fixing means (screws or clips) for stable fixation. This dynamic positioning capability allows the system to adapt to different manufacturing stages, enabling wave soldering when needed while maintaining positioning precision through the appropriate fixing method.
Data Source
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AI summary
Reel for the purpose of winding a length of cable of optical fiber cable type, comprising: - a winding support (12) for winding the length of cable; retaining means suitable for retaining the length of cable wound around the winding support; - first attachment means for the purpose of attaching the reel to an edge of a circuit board (50) such that the reel is positioned laterally with respect to the circuit board; - second attachment means for the purpose of attaching the reel flat to a face of the circuit board. System comprising a circuit board and a reel. Method for assembling an electrical device.