Electronic Component Vibration Resistance via Rigid Frame
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Solution Overview
Problem
Existing vibration prevention structures for electronic components in electronic devices are inadequate in withstanding external vibrations and impacts, particularly in vehicle-mounted devices near engines, leading to potential damage of connecting parts and the components themselves.
Innovation Solution
An electronic device design featuring a rigid frame member surrounding the electronic component and a connecting member that links the component to the rigid member on the opposite side of the mounting member, constraining the component and absorbing stress from external forces, thereby reducing oscillation and enhancing vibration and impact resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the electronic component is mounted on the printed circuit board with the center of gravity separated from the board, then the component can be electrically connected and functionally operational, but the component is susceptible to oscillation and damage under external vibration and impact
Solution Approach 1:
A vibration prevention member is provided beforehand between the electronic component and the printed circuit board to cushion against upcoming vibrations and impacts. This member absorbs external shocks before they reach the soldered connecting parts, preventing damage while maintaining the component's functional mounting configuration with separated center of gravity
Solution Approach 2:
The vibration prevention member acts as an intermediary element between the electronic component and the printed circuit board. It mediates the transmission of external forces, reducing the stress transferred to the connecting parts while allowing the component to remain mounted with its center of gravity separated from the board for electrical connection
2Reliability
If a vibration prevention structure is added to protect the electronic component, then the component's reliability under vibration is improved, but the device complexity increases
Solution Approach 1:
The vibration prevention member is designed as a flexible, thin component that can be easily integrated between the electronic component and the printed circuit board. This flexible structure provides vibration protection without adding significant structural complexity, maintaining simplicity while improving reliability under impact and vibration conditions
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
The solution effectively suppresses oscillation and absorbs stress, preventing damage to the electronic component and its connecting parts, thereby improving vibration and impact resistance, and allowing for closer component placement on the circuit board, reducing mounting space and enhancing design flexibility.
Implementation Method 1
a vibration prevention member between the electronic component and the printed circuit board, the center of gravity of the electronic component is at a position separated from the printed circuit board
Data Source
AI summary
An electronic device includes: an electronic component; and a mounting member on which the electronic component is mounted. A center of gravity of the electronic component is at a position separated from the mounting member. The electronic device further includes: a rigid member having a frame shape, which is fixed to the mounting member and surrounds the electronic component in a direction perpendicular to a direction from the center of gravity of the electronic component to the mounting member; and a connecting member which connects the electronic component to the rigid member on a side opposite to the mounting member with respect to the electronic component.