Circuit Board Assembly Layout for Protected Under-Connector Components
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Solution Overview
Problem
Electronic elements on printed circuit boards are prone to damage during production, assembly, and repair due to impact, leading to poor functionality and limited layout space in electronic devices.
Innovation Solution
A circuit board assembly with a backing plate featuring an accommodation portion for electronic elements, positioned under the board-to-board connector, which prevents impact damage and optimizes space usage, allowing for miniaturization and thinning of electronic devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If electronic elements are disposed on the surface of the printed circuit board surrounding the board-to-board connector, then filtering functions are achieved, but the electronic elements are easily damaged due to impact during production, assembly, and repair
Solution Approach 1:
The patent moves electronic elements from the traditional horizontal surface mounting to a vertical arrangement by accommodating them in recesses formed on the backing plate. This dimensional change relocates elements from the impact-prone surface area to a protected subspace, effectively shielding them from impact forces during handling and assembly operations.
Solution Approach 2:
The patent embeds electronic elements within recesses formed in the backing plate structure. This nesting approach places components inside the structural body rather than on its surface, providing inherent mechanical protection while maintaining compact integration with the overall assembly.
2Area of stationary object
If electronic elements are accommodated under the board-to-board connector using a backing plate with recesses, then impact damage is prevented and space is saved, but the structural complexity increases
Solution Approach 1:
The backing plate serves multiple functions simultaneously: it provides mechanical support for the board-to-board connector, creates protective recesses for electronic elements, and enables compact space utilization. This multi-functionality consolidates several components into one, reducing overall structural complexity despite the added protective features.
Solution Approach 2:
The patent combines the mounting structure, protective housing, and element accommodation features into a single integrated backing plate assembly. By merging these functions into one component rather than using separate parts, the overall device complexity is reduced while maintaining the protective and space-saving benefits.
Data Source
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AI summary
This application relates to the field of electronic component technologies, and in particular, to a circuit board assembly and an electronic device. The circuit board assembly includes a circuit board, a backing plate, an electronic element, and a board-to-board connector. The backing plate is fixedly connected to one side of the circuit board, the backing plate is provided with an accommodation portion, and the electronic element is accommodated in the accommodation portion and connected to the circuit board. The board-to-board connector is fixedly connected to one side that is of the backing plate and that is away from the circuit board. In the circuit board assembly and the electronic device provided in this application, the electronic element is accommodated in the accommodation portion, and the accommodation portion is provided on the backing plate, so that the electronic element is located in the space under the board-to-board connector. Therefore, not only damage caused by impact of the electronic element can be prevented, but also space of the circuit board assembly can be greatly saved, thereby facilitating miniaturization and thinning of the electronic device.