Speaker Frame Jig for Suspension Holder Alignment
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Solution Overview
Problem
Conventional speaker designs face misalignment issues during assembly due to the obstruction of the diaphragm, leading to degradation of acoustic characteristics, particularly in positional alignment of the voice coil and bobbin, resulting in compromised acoustic performance.
Innovation Solution
The speaker design incorporates a frame with openings for a jig to guide the suspension holder's inner rim to the correct position, ensuring accurate alignment and bonding, while using a silicone-base adhesive to secure the diaphragm and suspension holder, thereby maintaining phase equality and reducing resonance distortion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If the diaphragm is used to connect the bobbin to the suspension holder, then the weight of the suspension holder is reduced, but the alignment precision between the voice coil and diaphragm deteriorates due to obstruction during assembly
Solution Approach 1:
A jig is introduced as an intermediary tool during assembly to guide the suspension holder and ensure proper alignment between the voice coil and diaphragm. The jig compensates for the obstruction caused by the diaphragm, allowing precise positioning while maintaining the lightweight suspension holder structure connected to the diaphragm.
Solution Approach 2:
The jig is designed with guiding features that pre-position the suspension holder before the final bonding operation. This preliminary alignment action ensures that the voice coil and diaphragm are correctly positioned relative to each other before adhesive is applied, preventing misalignment issues.
2Stability of the object's composition
If the suspension holder is connected directly to the frame, then the structural stability is improved, but the weight of the suspension holder increases
Solution Approach 1:
The connection structure is segmented into two parts: the suspension holder connects to the diaphragm (providing lightweight support), while the diaphragm itself serves as the connection element to the frame. This segmentation allows the suspension holder to remain lightweight while the overall structure maintains stability through the distributed connection path.
3Weight of moving object
If the diaphragm obstructs the bonding area, then the lightweight structure is maintained, but the measurement and detection of bonding alignment becomes difficult
Solution Approach 1:
The jig acts as an intermediary that provides visual and physical references for bonding alignment. It includes guiding features and positioning elements that are visible and accessible during the bonding process, allowing workers to accurately detect and measure alignment even though the diaphragm obstructs direct view of the bonding area.
Data Source
AI summary
A frame is provided with an opening allowing insertion of a jig for setting an inner rim of a suspension holder to a proper position. The jig ensures positive alignment of the suspension holder when making connection to the frame. The jig also ensures reliable bonding of a diaphragm to the suspension holder with a bonding agent, since it steadily supports the suspension holder in position during the bonding process. The positioning of the bobbin and a voice coil is thus reliable when being assembled, thereby improving acoustic performance of a speaker.