Camera Module Contact Structure for ESD Without Extra PCB Space
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Solution Overview
Problem
The existing contact member structure for camera modules in electronic devices limits mounting space and may not maintain an appropriate contact point, posing challenges for electrostatic discharge (ESD) protection.
Innovation Solution
A fixing member, such as a fastening structure, is used to secure the camera assembly and printed circuit board, with a conductive member between the camera deco and the fixing member to form a discharge path, eliminating the need for additional mounting space on the printed circuit board.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a contact member is disposed on the printed circuit board overlapping the camera deco, then ESD protection is improved, but mounting space is reduced and contact reliability is compromised
Solution Approach 1:
The contact member is merged with the fixing member (screw assembly) that secures the camera module to the housing. This integration eliminates the need for a separate contact member on the PCB, thereby preserving mounting space while maintaining ESD protection functionality through the conductive path provided by the fixing member
Solution Approach 2:
The fixing member serves dual functions: mechanically securing the camera module assembly and providing an electrical conductive path for ESD protection. This multi-functionality resolves the contradiction by eliminating the need for separate components, thus preserving mounting space while ensuring reliability
2Reliability
If a contact member is disposed on the printed circuit board overlapping the camera deco, then ESD protection is improved, but contact reliability is worsened due to difficulty in maintaining appropriate contact point
Solution Approach 1:
By merging the contact function with the fixing member, the contact point is precisely positioned at the interface between the camera module assembly and housing. This eliminates the need for separate contact member placement on the PCB, thereby improving manufacturing precision and contact reliability
Solution Approach 2:
The fixing member automatically provides both mechanical fixation and electrical contact functions during the assembly process. The contact point is self-established through the tightening action of the screw, eliminating the need for precise pre-positioning of separate contact members and improving manufacturing precision
3Reliability
If additional contact members are added for ESD protection, then ESD protection is improved, but device complexity and material usage increase
Solution Approach 1:
The contact member is merged with the existing fixing member structure, eliminating the need for additional separate components. This integration reduces device complexity and material usage while maintaining ESD protection functionality through the conductive path of the combined structure
Solution Approach 2:
The fixing member is designed to perform multiple functions simultaneously: mechanical fixation and electrical conduction for ESD protection. This multi-functionality reduces the total component count and structural complexity while ensuring reliable ESD protection without additional materials
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 solution improves ESD by securing a mounting space and providing a fixed contact structure, reducing material and size requirements while maintaining effective ESD protection without additional thickness.
Implementation Method 1
a conductive member at least partially disposed between the camera deco and the fixing member to electrically connect the camera deco and the fixing member
Implementation Method 2
conductive member... to electrically connect the camera deco and the fixing member
Data Source
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AI summary
An electronic device is provided according to various embodiments of the present disclosure. The electronic device includes a housing including a rear plate having an opening and a support bracket at least partially disposed along an edge of the rear plate; a camera decoration disposed in the opening to be exposed to the outside, covering a camera assembly and connected to rear plate; a printed circuit board disposed in the housing; a rear structure supporting the camera assembly and the printed circuit board; a fixing member coupled to the rear structure and fixing the camera assembly and/or the printed circuit board to the support bracket; and a conductive member at least partially disposed between the camera decoration and the fixing member to electrically connect the camera decoration and the fixing member to each other.