Camera Structure With Conductive Adhesive for ESD Grounding
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Solution Overview
Problem
Electrostatic discharge (ESD) phenomena can damage electronic components due to accumulated electric charges, leading to improper functioning or performance deterioration of electronic devices, necessitating a path for ESD to flow to the ground.
Innovation Solution
A conductive adhesive member electrically connects a metal camera housing to a ground portion of a printed circuit board, providing a discharge path for ESD through the camera bracket and housing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a metal camera housing is used, then aesthetic appearance and structural strength are improved, but electrostatic discharge damage risk increases due to charge accumulation
Solution Approach 1:
A conductive adhesive member is introduced as an intermediary component between the metal camera housing and the ground portion. This adhesive member provides a controlled conductive path that allows ESD to safely discharge to ground while maintaining the structural integrity of the metal housing. The conductive adhesive thus mediates between the harmful ESD effect and the need for strong metal construction.
2Reliability
If a conductive path to ground is added, then ESD protection is improved, but device complexity increases
Solution Approach 1:
The conductive adhesive member combines multiple functions into a single component: it provides structural bonding between the camera housing and the bracket while simultaneously establishing the ESD discharge path to ground. This merging of mechanical fastening and electrical grounding functions into one element avoids adding separate complex grounding structures.
Solution Approach 2:
The conductive adhesive member serves multiple purposes: it acts as a structural adhesive for mechanical bonding, provides electrical conductivity for ESD protection, and creates physical contact between components. This multi-functionality reduces the need for additional dedicated ESD protection components, thereby limiting complexity increase.
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
Effectively discharges accumulated charges to the ground, protecting the electronic device from ESD-related damage and ensuring proper functionality and performance.
Implementation Method 1
a conductive adhesive member positioned on the camera bracket and connected to the at least one ground portion of the printed circuit board, the conductive adhesive member comprising a conductive material
Data Source
AI summary
An electronic device includes a printed circuit board with at least one ground portion, a camera electrically connected to the printed circuit board, and a camera bracket positioned in a first direction with respect to the camera. The camera bracket has a first opening corresponding to a lens of the camera. A conductive adhesive member with conductive material is positioned on the camera bracket and connected to the ground portion. A metal camera housing forms a first exterior portion of the device with a second opening corresponding to the first opening, positioned in the first direction with respect to the camera bracket and contacting the conductive adhesive member. A cover member forms a second exterior portion of the device with a third opening positioned in the first direction with respect to the camera housing, where at least a portion of the camera housing is exposed through the third opening.