Circuit Board Mounting Support With Damping Device
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Solution Overview
Problem
Conventional circuit board mounting supports cause flexure or warping of circuit boards due to vibrations, leading to solder cracking and potential damage, especially when multiple layers are configured.
Innovation Solution
A circuit board mounting support system featuring a bearing member with a groove and engaging portion, along with damping devices to absorb vibrations, ensuring the circuit board remains stable and preventing flexure, and allowing for multi-layer designs without disrupting the circuit layout.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple circuit boards are configured in upper and lower layers to meet high performance requirements, then the electronic circuit integration capability is improved, but the circuit boards become susceptible to flexure and warping due to vibration, leading to solder cracking
Solution Approach 1:
The mounting support structure is divided into multiple independent legs distributed at different locations (peripheral area and inner area) of the circuit board. Each leg independently supports specific components, allowing the structure to isolate and manage vibrations locally rather than transmitting them across the entire board, thus preventing flexure while supporting multiple circuit boards
Solution Approach 2:
Different legs are positioned at different locations with different functions: peripheral legs (first legs) support the circuit board edges and provide overall structural stability, while inner legs (second legs) positioned near electronic components provide localized support. This localized support strategy ensures that vibration-induced stress is distributed and managed at specific points, preventing solder cracking while maintaining the ability to mount multiple circuit boards
2Adaptability or versatility
If legs are mounted in the peripheral area of the circuit board to avoid breaking the center layout, then the circuit board layout flexibility is improved, but the support structure becomes insufficient to prevent flexure under vibration
Solution Approach 1:
The support legs are segmented into two functional groups: first legs positioned in the peripheral area for maintaining layout flexibility, and second legs positioned in the inner area for providing vibration resistance. This segmentation allows each group to perform its specialized function without compromising the other
Solution Approach 2:
The mounting support combines both peripheral mounting (for layout flexibility) and inner area mounting (for vibration resistance) into a unified structure. By merging these two approaches, the system achieves both layout adaptability and mechanical strength, preventing circuit board flexure while maintaining design flexibility
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 buffers mechanical vibrations, reducing the risk of solder cracking and enhancing the service life of the circuit board while maintaining the flexibility for multi-layer designs.
Implementation Method 1
a damping device connected to the bearing member and located in the corresponding area and elastically abutting against a bottom of the fixing member
Data Source
AI summary
A circuit board mounting support for supporting a first electronic circuit integration includes a bearing member. The first electronic circuit integration includes a circuit board, an electronic component engaged with a first surface of the circuit board, and multiple legs for engaging with the bearing member. The circuit board has a mounting area for mounting the electronic component and a second surface opposite to the first surface. The bearing member includes a groove and an engaging portion connected to a peripheral edge of the groove. A corresponding area is defined on the bearing member and corresponds to the mounting area of the circuit board. When the bearing member is engaged with the circuit board, an opening of the groove and the engaging portion face the second surface. A junction that each of the legs is engaged with the bearing member is located out of the corresponding area.