Camera Driving Module Damping Material Dispensing
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Solution Overview
Problem
Conventional camera manufacturing processes result in excessive use of damping material due to its application before quality testing, leading to increased manufacturing costs and inefficient vibration reduction in camera systems.
Innovation Solution
A camera driving module design that includes a base, casing, lens unit, magnetic element, coil, and damper agent, where the damper agent is precisely dispensed between broadwise notch and protruding structures only after the camera passes a focusing capability test, using UV-curable materials to minimize waste and optimize damping material usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If damping material is dispensed on the camera before quality testing, then vibration reduction is provided, but excessive use of damping material occurs leading to increased manufacturing cost
Solution Approach 1:
The patent applies preliminary action by pre-positioning the lens unit on the casing with alignment notches before dispensing the damping material. This allows the damping material to be precisely applied only where needed at the interface between the lens unit and casing, rather than applying it broadly before assembly. The alignment notches guide the dispensing process to ensure material is placed only at necessary locations, reducing waste while maintaining vibration reduction effectiveness.
2Reliability
If damping material is dispensed on the camera before quality testing, then vibration reduction is provided, but manufacturing cost increases
Solution Approach 1:
The patent implements preliminary action by establishing precise alignment features (notches) on both the casing and lens unit before the damping material dispensing step. This pre-positioning ensures that when the damping material is applied, it is deposited only at the exact interface locations required for vibration reduction. Consequently, less material is wasted, and the manufacturing process becomes more efficient, reducing overall manufacturing costs while maintaining effective vibration reduction.
3Reliability
If damping material is dispensed uniformly across the camera, then vibration reduction is achieved, but material usage efficiency decreases
Solution Approach 1:
The patent applies local quality by using alignment notches to concentrate the damping material only at specific critical interfaces between the lens unit and casing, rather than distributing it uniformly across the entire camera assembly. The notches create localized zones where vibration damping is most needed, allowing the damping material to be applied precisely where it provides maximum benefit. This localized application reduces the total quantity of damping material required while maintaining effective vibration reduction performance.
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 approach reduces the consumption of damping material while ensuring effective vibration reduction, thereby lowering manufacturing costs and improving the efficiency of the camera's image capturing capabilities.
Implementation Method 1
The damper agent is configured to reduce the movement of the lens unit
Implementation Method 2
the damper agent is cured via UV irradiation
Data Source
AI summary
A camera driving module includes a base, a casing, a lens unit, a magnetic element, a coil, a spring and a damper agent. The base includes an opening. The casing is disposed on the base and includes a through hole and a broadwise notch structure. The broadwise notch structure is located nearby a periphery of the through hole. The lens unit is movably disposed on the casing and includes a protruding structure. The protruding structure is located at a periphery of the lens unit. The magnetic element is fixed to the casing and located at an inside the casing. The coil is fixed to the lens unit and located at an outside of the lens unit. The coil faces toward the magnetic element. The spring is disposed on the lens unit. The damper agent is disposed between the broadwise notch structure and the protruding structure.