Camera Module Insulating Spacer Prevents Short-Circuit
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Solution Overview
Problem
Conventional camera modules are prone to short-circuiting due to exposure to outside conductive materials, which can cause damage and abnormal function.
Innovation Solution
The camera module incorporates a conductive lower spring plate connected to a staircase-formed spacer, which prevents exposure to external conductive materials, thereby inhibiting short-circuiting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a metal shield can is provided to protect electronic elements from radio interference and outside shocks, then protection against harmful factors is improved, but the risk of short-circuit with outside conductive materials increases
Solution Approach 1:
The patent introduces an insulating structure (insulating layer or insulating housing portion) as an intermediary between the conductive lower spring plate and external conductive materials. This intermediary prevents direct contact and short-circuit while allowing the spring plate to maintain its electrical function for focusing the lens assembly.
Solution Approach 2:
The patent segments the protective function into separate components: the lower spring plate handles mechanical focusing, while the insulating structure handles electrical isolation. This segmentation allows each component to perform its specific function without interfering with others, preventing short-circuits while maintaining protection.
2Reliability
If the lower spring plate is made conductive to enable electrical connection with the PCB, then electrical connectivity is improved, but the susceptibility to short-circuit with outside conductive materials increases
Solution Approach 1:
The insulating structure serves as a mediator that allows the conductive lower spring plate to maintain its electrical connection with the PCB while preventing contact with external conductive materials. The insulating layer or insulating housing portion acts as a barrier that preserves electrical connectivity internally while blocking external interference.
Solution Approach 2:
The patent applies different electrical properties to different parts of the structure: the lower spring plate is conductive for electrical connection, while the insulating structure provides localized electrical isolation. This local differentiation of material properties allows the system to simultaneously achieve connectivity and protection.
3Adaptability or versatility
If conductive materials are used in the camera module structure to enable electrical connections, then electrical functionality is improved, but the generation of short-circuit with outside conductive materials increases
Solution Approach 1:
The insulating structure functions as a mediator that enables electrical functionality through the conductive lower spring plate while preventing the generation of harmful short-circuits with external conductive materials. The insulating layer or insulating housing portion creates a controlled electrical environment that allows functionality while blocking harmful interactions.
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 effectively prevents short-circuiting with outside conductive materials, reducing damage to the camera module and eliminating the need for additional protective components.
Implementation Method 1
a lower spring plate formed with a conductive material, and connected to the connection lead of the base for coupling with an upper surface of the plated portion
Implementation Method 2
a spacer arranged on an upper surface of the lower spring plate and forming a staircase structure by a rib wrapping a periphery of the lower spring plate to supportively apply a pressure to the lower spring plate
Implementation Method 3
an upper spring plate coupled to an upper surface of the lens actuator to supportively apply a pressure to the lens actuator
Data Source
AI summary
The present invention relates to a camera module, the module including: a PCB; an image sensor mounted on the PCB and formed with an image pickup device; a base mounted on the PCB and including a plated portion formed at a lower center with an opening mounted with an IR filter; a lower spring plate formed with a conductive material; a spacer arranged on an upper surface of the lower spring plate and forming a staircase structure by a rib wrapping a periphery of the lower spring plate to supportively apply a pressure to the lower spring plate; a lens actuator including a bobbin, and a yoke; an upper spring plate coupled to an upper surface of the lens actuator; and a cover attached to an upper surface of the upper spring plate.