Electroacoustic Transducer Lead Wire Routing
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Solution Overview
Problem
Conventional electroacoustic transducing devices face issues with audio performance and bonding stability due to unsupported lead wires from the voice coil, which are not adequately subjected to a wire laying process, leading to vibration system interference and reduced reliability of the bonding between the voice coil and diaphragm.
Innovation Solution
The implementation of a wire laying process where lead wires drawn out from the voice coil are bent in air to form slack portions, guided through openings in the frame, allowing for proper connection to solder pad portions, enhancing the stability of the bonding and reducing vibration system interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the lead wire is drawn out from the voice coil at a position close to the diaphragm, then the bonding between voice coil and diaphragm becomes unstable, but drawing it out at a remote position causes the lead wire to be unsupported and exert influence on the vibration system
Solution Approach 1:
The patent introduces an intermediary structure (support member or guide structure) within the frame to support and guide the lead wire from the voice coil to the external terminal. This intermediary element prevents the lead wire from directly contacting or interfering with the vibration system while maintaining stable bonding at the voice coil-diaphragm interface. The support structure acts as a mediator that separates the electrical connection function from the mechanical vibration function.
Solution Approach 2:
The patent routes the lead wire through a different spatial dimension or path within the frame structure, guiding it along a predetermined trajectory that avoids the vibration system's operational space. By utilizing the three-dimensional space within the frame more effectively, the lead wire is directed through openings or channels that prevent interference with the diaphragm and voice coil assembly while maintaining external accessibility.
2Stability of the object's composition
If the lead wire is simply laid without support to avoid tensile stress, then a large influence is exerted on the vibration system, but proper wire laying process is needed to maintain audio performance
Solution Approach 1:
The patent employs support members, guide structures, or tensioning elements as intermediaries to maintain the lead wire in a stable, controlled position throughout the wire laying process. These intermediaries prevent the lead wire from sagging, twisting, or contacting the vibration system, thereby maintaining both mechanical stability and audio performance without requiring the lead wire to be simply laid without support.
3Ease of operation
If the voice coil axis is inclined with respect to the vibration direction, then the voice coil easily contacts with internal components, but proper alignment is needed for compact design
Solution Approach 1:
The patent introduces alignment guides, positioning structures, or support members within the frame that act as intermediaries to maintain proper alignment between the voice coil axis and the vibration direction. These structures ensure that the voice coil remains correctly positioned during assembly and operation, preventing contact with internal components while maintaining a compact design without requiring complex alignment procedures.
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
This configuration ensures that lead wires are adequately subjected to the wire laying process, maintaining audio performance and enhancing the reliability of the bonding between the voice coil and diaphragm, while preventing contact issues with internal components in compact designs.
Implementation Method 1
a voice coil in which a conductor wire is wound is placed in the magnetic gap
Implementation Method 2
the voice coil is placed in a magnetic gap
Data Source
Figure 1
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AI summary
According to the invention, in an electroacoustic transducing device comprising: a magnetic circuit 13 having a yoke 4, a magnet 11, and a pole piece 12; a vibration system 16 having a diaphragm 14 and a voice coil 15; and a frame 1 which holds the magnetic circuit 13 and the vibration system 16, the voice coil 15 being placed in a magnetic gap 30, lead wires 17, 18 of the voice coil 15 are drawn out from the voice coil 15 at positions which are remote from the diaphragm 14, and openings 7A, 7B for air forming for forming slack portions 31, 32 in the lead wires 17, 18 drawn out from the voice coil 15 are disposed in the frame 1. The lead wires 17, 18 are adequately subjected to the wire laying process, and the audio performance is prevented from being lowered.