Loudspeaker Lead Wire Arc Control via Angled Guides
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Solution Overview
Problem
The installation of lead wires in loudspeakers is challenging due to limited access within the speaker frame, making it difficult to accurately gauge and manage the length and arc of the wires, which can lead to stress on connections, undesirable noise, and potential contact with diaphragm or spider elements during operation.
Innovation Solution
The implementation of angled guides on both the voice coil and frame brackets to control the arc of lead wires, eliminating the need for flexible glue and allowing assembly outside the frame, ensuring precise control of lead wire length and arc to prevent stress and contact with other components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If lead wires are installed within the speaker frame using conventional methods, then assembly can be completed, but it is difficult to accurately gauge and manage the length and arc of the wires, leading to stress on connections and potential contact with diaphragm or spider elements
Solution Approach 1:
The patent introduces guide structures as intermediary elements that channel and direct the lead wires along predetermined paths. These guides act as mediators between the voice coil and the frame, ensuring the wires maintain proper arc and length without requiring manual measurement or adjustment by the installer.
Solution Approach 2:
The guide structures are pre-installed on the frame and voice coil before the lead wire installation process begins. This preliminary action establishes the correct geometric path for the wires in advance, eliminating the need for complex measurements and adjustments during the actual wire installation.
2Reliability
If lead wires are made longer to accommodate voice coil excursion, then stress on connections is reduced, but the wires may contact the diaphragm or spider during operation
Solution Approach 1:
The guide structures provide localized geometric constraints at specific positions along the lead wire path. By shaping the guides with appropriate angles and curves, the system maintains different qualities in different regions: sufficient wire length for stress relief in the connection areas, while maintaining proper clearance from diaphragm and spider in the movement zones.
Solution Approach 2:
The guides incorporate curved paths that direct the lead wires in smooth arcs away from the diaphragm and spider regions. This curvature ensures that even when the voice coil excursions fully, the wires follow a predetermined arc that maintains safe clearance from sensitive components while still accommodating the full range of motion.
3Object-affected harmful factors
If lead wires are made shorter to prevent contact with diaphragm or spider, then harmful contact is avoided, but stress on connections increases during voice coil excursion
Solution Approach 1:
The guide structures utilize three-dimensional spatial arrangement to resolve the conflict between wire length and clearance. By orienting the guides at specific angles and creating a three-dimensional path through the speaker assembly, the system achieves both sufficient wire length for stress relief and adequate clearance from diaphragm and spider through proper geometric configuration.
4Ease of manufacture
If assembly is performed within the speaker frame, then all components can be installed in one location, but access is limited making it difficult to work with lead wires
Solution Approach 1:
The installation process is segmented into distinct phases: first, the guide structures are pre-installed on the frame and voice coil components separately where adequate access is available; second, these pre-prepared components are then assembled together within the frame. This segmentation allows complex lead wire routing to be performed in accessible areas while maintaining integrated assembly.
Data Source
AI summary
This invention is directed to a loudspeaker having a lead wire management system including guides located at both the voice coil and the frame of the speaker. Each guide is angled allowing them to control the arc at which the lead wires extend between the voice coil and frame, and rounded edges of the guides relieve stress on the lead wire joint connections during motion of the voice coil.