Optical Element Driving Apparatus Corner Wire Group Merging
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing optical element driving apparatuses for camera modules, such as those in smartphones, face issues with electrical connections due to wire members at the corners being connected to different leaf spring members, leading to potential short circuits and instability in electric contact.
Innovation Solution
The apparatus includes a configuration where a group of two or more wire members at each corner of the housing part are connected to a common leaf spring member, stabilizing the electric connection by reducing stress on individual wires and forming a single electrical path.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wire members at each corner are connected to different leaf spring members, then the housing part can be supported in a movable manner, but the electric connection becomes unstable and short circuits may occur
Solution Approach 1:
Multiple wire members that were previously connected to different leaf spring members are now merged and connected to a common leaf spring member. This consolidation creates a single electrical path, eliminating the risk of short circuits and stabilizing the electric connection between the housing part and the fixing part.
2Adaptability or versatility
If wire members are displaced at the corner, then the housing part can move in the optical axis orthogonal direction, but the risk of contact between wire members increases
Solution Approach 1:
A common leaf spring member is introduced as an intermediary component to connect multiple wire members. This mediator consolidates the electrical connections and provides a stable structural support, allowing the housing part to move in the optical axis orthogonal direction while preventing wire member displacement and potential short circuits.
3Strength
If two or more wire members are disposed at each corner, then the support structure is enhanced, but the electrical paths become different and short circuits may occur
Solution Approach 1:
Multiple wire members disposed at each corner are merged into a single electrical path by connecting them to a common leaf spring member. This maintains the structural strength provided by multiple wire members while ensuring electrical reliability by consolidating the electrical connection path.
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 configuration enhances the stability of electric connections, reducing the risk of short circuits and ensuring reliable operation of auto focus and optical image stabilization functions.
Implementation Method 1
a leaf spring member configured to support the movable part such that the movable part is movable in the optical axis direction with respect to the housing part
Implementation Method 2
a wire member configured to support the housing part such that the housing part is movable in an optical axis orthogonal direction with respect to the fixing part
Data Source
AI summary
An optical element driving apparatus includes: a movable part; a housing part configured to surround an outer periphery of the movable part and house the movable part, the housing part having a rectangular shape in plan view; a fixing part disposed on one side in an optical axis direction with respect to the movable part and the housing part; a leaf spring member configured to support the movable part such that the movable part is movable in the optical axis direction; and a wire member configured to support the housing part such that the housing part is movable in an optical axis orthogonal direction with respect to the fixing part. The wire member is configured such that a wire group including two or more wire members is disposed at each of four corners of the housing part and connected to a common leaf spring member.