Electronic Device Conductive Shielding for Movable Parts and ESD Noise
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Solution Overview
Problem
The challenge of miniaturizing electronic devices while ensuring a movable space for components and protecting against electrostatic discharge (ESD) noise interference is not adequately addressed in existing technologies.
Innovation Solution
Incorporating a conductive bottom plate with a cutout for the movable portion and a shield member positioned between the conductive plate and the exterior, allowing the movable portion to intersect with a virtual plane, thereby reducing electromagnetic interference and ESD noise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the electronic unit is miniaturized to fit in a small space, then the device size is reduced, but the movable space for the movable portion is compromised and ESD noise protection is insufficient
Solution Approach 1:
The conductive plate is segmented into a first conductive part and a second conductive part by introducing a virtual plane, creating distinct functional regions. The first conductive part is positioned between the fixed portion and the second conductive part, while the third main surface of the second conductive part is positioned between the movable portion and the fourth main surface. This segmentation allows the movable portion to move with respect to the conductive plate while maintaining ESD noise protection through the shield member configuration.
Solution Approach 2:
A shield member is introduced as an intermediary element positioned between the conductive plate and the exterior of the electronic device. This shield member effectively shields against ESD noise while allowing the movable portion to intersect with the virtual plane and move freely within the constrained space, thus resolving the contradiction between miniaturization and noise protection.
2Ease of operation
If the movable portion is allowed to move freely to maintain functionality, then image stabilization is achieved, but ESD noise interference increases
Solution Approach 1:
The shield member serves as an intermediary that allows the movable portion to move freely for image stabilization while blocking ESD noise from reaching the movable portion. The shield member is positioned between the conductive plate and the exterior, creating a protective barrier that does not restrict the movement of the movable portion relative to the conductive plate.
Solution Approach 2:
The conductive plate is designed with different functional zones: the first conductive part interacts with the fixed portion, the second conductive part interacts with the movable portion, and the shield member provides localized protection against ESD noise. This local differentiation allows the movable portion to maintain its functionality while being protected from harmful noise interference.
3Ease of manufacture
If the conductive plate structure is simplified to reduce manufacturing complexity, then ease of manufacture is improved, but ESD noise shielding effectiveness is reduced
Solution Approach 1:
The conductive plate is divided into multiple parts (first conductive part and second conductive part) with distinct main surfaces positioned at specific locations. This segmentation, combined with the shield member, creates an effective ESD noise shielding structure that can be manufactured using standard processes while providing reliable protection.
Solution Approach 2:
The shield member acts as an intermediary element that enhances the ESD noise shielding effectiveness without requiring complex modifications to the conductive plate structure itself. This allows the overall structure to remain relatively simple for easy manufacturing while achieving reliable noise protection through the addition of the shield member.
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 enables miniaturization of electronic devices by securing a movable space while effectively shielding against ESD noise, maintaining image stability and functionality.
Implementation Method 1
a shield member positioned between the conductive plate and the exterior, allowing the movable portion to intersect with a virtual plane, thereby reducing electromagnetic interference and ESD noise
Data Source
AI summary
An electronic device includes an electronic unit including a fixed portion and a movable portion movable with respect to the fixed portion, a first conductive part having a first main surface and a second main surface provided on a side opposite to the first main surface, and a second conductive part having a third main surface and a fourth main surface provided on a side opposite to the third main surface. The first main surface is positioned between the fixed portion and the second main surface. The third main surface is positioned between the movable portion and the fourth main surface. The third main surface is positioned between the fourth main surface and a virtual plane extending along the first main surface. Part of the movable portion is capable of moving with respect to the first conductive part and the second conductive part and intersecting with the virtual plane.