Ball-Guided Camera Lens Module for Rattle and Impact Damping
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Solution Overview
Problem
The manufacturing process for cameras in portable electronic devices is complicated and costly due to the need for sophisticated assembly of dampers to reduce rattling sounds caused by lens barrel collisions with the housing, which increases manufacturing time and costs.
Innovation Solution
A camera module design that includes first and second dampers coupled to the lens modules at their ends, with guide grooves and magnetic members to stabilize movement and alleviate impacts, eliminating the need for damper installation on the housing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a damper is disposed in the housing to reduce rattling sounds, then noise reduction is improved, but manufacturing complexity and cost increase
Solution Approach 1:
A ball member is introduced as an intermediary element between the lens barrel and housing. This ball member acts as a mediator that absorbs impact energy and reduces rattling sounds without requiring complex damper assembly processes. The ball member simplifies the overall structure by replacing the need for separate dampers mounted on the housing.
Solution Approach 2:
The ball member is strategically positioned at specific locations where the lens barrel interacts with the housing. By placing the ball member only at these critical impact points rather than throughout the entire housing, the solution achieves effective noise reduction while maintaining manufacturing simplicity.
2Object-affected harmful factors
If a damper is disposed in the housing to reduce rattling sounds, then noise reduction is improved, but manufacturing time and cost increase
Solution Approach 1:
The ball member serves as a simple intermediary component that can be easily integrated into the lens assembly during standard manufacturing processes. Unlike complex dampers requiring specialized mounting procedures, the ball member can be installed using conventional assembly techniques, thereby maintaining high manufacturing efficiency while achieving the desired noise reduction.
3Ease of operation
If the lens barrel moves and collides with the housing, then lens movement function is achieved, but collision noise is generated
Solution Approach 1:
The ball member is positioned in advance between the lens barrel and housing to provide cushioning before collision occurs. This pre-positioned cushioning element absorbs impact energy during lens movement, preventing direct contact between the lens barrel and housing, thereby eliminating collision noise while maintaining full lens movement functionality.
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 effectively reduces rattling sounds and simplifies the manufacturing process by integrating dampers directly with the lens modules, improving efficiency and reducing assembly complexity.
Implementation Method 1
a ball member disposed between the first lens module and the housing
Implementation Method 2
configured to alleviate impacts between the housing and the first lens module
Implementation Method 3
a magnet disposed on the bracket
Implementation Method 4
The housing and the first lens module may include a guide groove configured to accommodate at least a portion of the ball member
Data Source
AI summary
A camera module includes: a housing; a first lens module movably disposed in the housing in an optical axis direction; a folded module including a reflective member configured to change a direction of light incident into the housing toward the first lens module; and a first damper coupled to the first lens module, and configured to alleviate impacts between the housing and the first lens module.