Voice Coil Motor Base Assembly With Trench-Flexure Gap Control
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Solution Overview
Problem
The existing voice coil motor designs suffer from poor precision due to an obvious gap between the lower elastic piece and the connecting area, which affects the motor's stability and performance.
Innovation Solution
Incorporating a first trench in the lower elastic piece reduces its area and rigidity, allowing the connecting piece to press against it more effectively, thereby minimizing the gap between the lower elastic piece and the connecting area, enhancing the motor's precision.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the terminal protrudes obviously from the elastic piece connecting area to ensure welding stability, then the welding stability is improved, but a gap is formed between the lower elastic piece and the elastic piece connecting area, reducing manufacturing precision
Solution Approach 1:
The patent changes the physical parameters of the lower elastic piece by adding a first trench, which modifies its rigidity and deformation characteristics. This allows the piece to deform and fill the gap created by the protruding terminal, thereby maintaining both welding stability and manufacturing precision.
Solution Approach 2:
The patent segments the lower elastic piece by introducing a first trench, which divides the continuous structure into regions with different rigidity. This segmentation enables selective deformation in specific areas to eliminate gaps while maintaining structural integrity for welding.
2Strength
If the lower elastic piece has high hardness to ensure structural strength, then the strength is improved, but the gap in the riveted area is difficult to eliminate, reducing manufacturing precision
Solution Approach 1:
The patent applies local quality by creating a first trench in specific locations of the lower elastic piece. This trench introduces localized flexibility in areas needing gap elimination while preserving the overall high hardness and strength of the elastic piece for structural support.
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 reduced gap and improved stability of the lower elastic piece enhance the precision and performance of the voice coil motor by allowing more stable attachment and reduced vibration.
Implementation Method 1
Incorporating a first trench in the lower elastic piece reduces its area and rigidity, allowing the connecting piece to press against it more effectively, thereby minimizing the gap between the lower elastic piece and the connecting area
Data Source
AI summary
The present disclosure provides a base assembly of voice coil motor and a voice coil motor. The base assembly includes a base body having an elastic piece connecting area with a protrusion; a lower elastic piece disposed on the elastic piece connecting area with a first connecting hole, a second connecting hole, and a first trench, the protrusion is exposed from the first connecting hole, and the first trench is disposed between the first connecting hole and the second connecting hole; a connecting piece; and a terminal having a conductive part and a terminal connecting part, wherein the conductive part is disposed in the base body, the terminal connecting part passes through the elastic piece connecting area and protrudes from the elastic piece connecting area, and a part of the terminal connecting part is exposed from the second connecting hole to be fixedly connected to the lower elastic piece.