Camera Module Conductive Member Lens Outer Frame Circuit Substrate
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional camera modules in mobile phones are bulky due to large and complex components like coils and magnets, which cause magnetic interference and heat dissipation issues, and the adjustable lens modules are also large in size, complicating manufacturing and assembly.
Innovation Solution
A camera module design that reduces component count by using an adjustable lens module with a piezoelectric member and a conductive auxiliary member to connect the lens directly to the circuit substrate, eliminating the need for a supporting bracket and simplifying the structure, while maintaining focus functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional voice coil motors are used for focusing, then the focusing function is achieved, but the components become large in size and complex in structure
Solution Approach 1:
The patent replaces the conventional voice coil motor (mechanical system with magnets and coils) with a piezoelectric member that uses piezoelectric effect to deform the lens directly. This substitution eliminates magnets, coils, and complex mechanical structures while achieving the same focusing function through electrical-to-mechanical conversion at the material level.
Solution Approach 2:
The patent changes the operational principle from electromagnetic actuation to piezoelectric deformation. The piezoelectric member changes its physical shape through voltage application, causing the lens to deform from a flat surface into a spherical curved surface, thereby achieving focus without the complex mechanical components of traditional motors.
2Reliability
If adjustable lens is packaged with supporting bracket and outer frame, then the lens is supported and electrically connected, but the size of top portion of lens module increases
Solution Approach 1:
The patent merges the supporting bracket, outer frame, and electrical connection functions into a single integrated lens outer frame. The lens outer frame directly supports the lens, provides structural containment, and incorporates conductive portions for electrical connection to the circuit substrate, eliminating the need for separate supporting brackets and reducing overall size.
Solution Approach 2:
The lens outer frame is designed to perform multiple functions simultaneously: it supports the lens mechanically, contains the adjustable lens module, and provides electrical connection pathways through its conductive portions. This multi-functionality reduces the number of separate components needed and minimizes the top portion size.
3Adaptability or versatility
If multiple motors are used in camera module, then focusing and other functions are achieved, but magnetic interference occurs
Solution Approach 1:
The patent replaces electromagnetic motors that generate magnetic fields with a piezoelectric member that uses electric field-induced deformation. This substitution eliminates the source of magnetic interference while maintaining the focusing capability through direct piezoelectric actuation of the lens.
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 design reduces the size of the camera module, simplifies the structure, improves reliability, and facilitates easier assembly by integrating the conductive circuit and auxiliary member, enhancing the compactness and functionality of the camera module.
Implementation Method 1
The gel deforms from a flat surface into a spherical curved surface because of the expansion and contraction the piezoelectric member, thus achieving the focus function
Implementation Method 2
The auxiliary member includes a conductive member. The conductive member is electrically connected to the first conductive portion, and the conductive member is electrically connected to the second conductive portion to electrically connect the lens frame and the circuit substrate
Data Source
AI summary
Provided are a camera module and terminal. The camera module comprises a circuit substrate, an adjustable lens module, a lens, and an auxiliary member. The lens is disposed on the circuit substrate, the adjustable lens module is disposed above the lens. The adjustable lens module comprises a lens outer frame and a lens body. The lens outer frame is fixed to the lens, the lens is disposed in the lens outer frame. A first conductive portion is formed on the lens outer frame, and a second conductive portion is formed on the circuit substrate. The auxiliary member comprises a conductive member. The conductive member is electrically connected to the first conductive portion, and the conductive member is electrically connected to the second conductive portion, so as to electrically connect to the lens outer frame and the circuit substrate.