Loudspeaker Insert-Molded Housing for Signal Stability
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Solution Overview
Problem
Existing loudspeakers face issues with breakage and drop-off of transmission members due to applied forces, and rolling phenomena during signal transmission, particularly in compact designs.
Innovation Solution
A loudspeaker design integrating a magnetic circuit with a resin housing and transmission members, featuring externally and internally exposed portions, and a damper system with connection members to stabilize the voice coil body, suppressing rolling and enhancing structural integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If transmission members are arranged on the lateral side of the magnetic circuit, then signal transmission to the voice coil body is enabled, but the transmission members are susceptible to breakage and drop-off due to applied forces
Solution Approach 1:
The transmission members are integrated with the housing through insert molding, merging previously separate components into a unified structure. This combination allows the housing to provide mechanical support and protection to the transmission members, preventing breakage and drop-off while maintaining signal transmission functionality.
Solution Approach 2:
The housing is formed as a composite structure integrating resin material with conductive transmission members through insert molding. This composite construction combines the mechanical properties of the resin housing with the electrical conductivity of the transmission members, creating a robust assembly that resists external forces while enabling signal transmission.
2Volume of moving object
If the loudspeaker is designed in a compact form, then space efficiency is improved, but rolling phenomena occur during signal transmission
Solution Approach 1:
The transmission members are arranged asymmetrically on the lateral side of the magnetic circuit rather than symmetrically around it. This asymmetric arrangement, combined with their fixed integration into the housing, prevents rolling phenomena by establishing a stable positional relationship that resists rotational forces in the compact loudspeaker design.
Solution Approach 2:
The transmission members are pre-fixed to the housing through insert molding before final assembly. This preliminary fixation ensures that the transmission members maintain their correct positional relationship with the magnetic circuit and voice coil body, preventing rolling phenomena during operation in the compact design.
3Ease of manufacture
If multiple components are assembled separately, then manufacturing flexibility is maintained, but assembly complexity and time increase
Solution Approach 1:
The housing and transmission members are merged into a single integrated component through insert molding. This allows the transmission members to be embedded within the housing during a single molding process, eliminating separate assembly steps and significantly improving production efficiency while maintaining manufacturing flexibility for the overall loudspeaker assembly.
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
The design prevents breakage and drop-off of transmission members, stabilizes signal transmission, and simplifies assembly by integrating components through insert molding, ensuring robustness and precision in compact loudspeakers.
Implementation Method 1
a magnetic circuit including a magnetic gap; a voice coil body arranged inserted in the magnetic gap
Implementation Method 2
a housing made of a resin and integrated with the magnetic circuit and the transmission members
Data Source
AI summary
A loudspeaker including a magnetic circuit including a magnetic gap, a voice coil body inserted in the magnetic gap, a diaphragm attached to the voice coil body, transmission members arranged on a lateral side of the extend magnetic circuit along the magnetic circuit with a predetermined gap to transmit an electric signal to be input to the voice coil body, and a housing made of a resin and integrated with the magnetic circuit and the transmission members. The transmission members include externally exposed portions and internally exposed portions.