Board-To-Board Connector Bracket Assembly With Shared Slot Fastening
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Solution Overview
Problem
The increasing number of board-to-board connectors in electronic devices, fastened with screws, leads to numerous screw holes affecting trace layout and insecure connections, particularly for important chips on the mainboard.
Innovation Solution
A circuit board assembly using brackets and a fixing member with a slot and tongue insert to fasten board-to-board connectors, reducing the need for screw connections and enhancing connection firmness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If board-to-board connectors are fastened with screws, then connection reliability is improved, but the number of screw holes increases affecting trace layout
Solution Approach 1:
The patent merges multiple bracket fastening functions into a single integrated fixing member. The fixing member simultaneously fastens both the first bracket and the second bracket to the circuit board through one slot, eliminating the need for separate screw connections for each bracket. This reduces the number of screw holes from multiple individual holes to just one shared slot, thereby improving trace layout while maintaining connection reliability.
Solution Approach 2:
The fixing member acts as an intermediary element that connects both brackets to the circuit board through a single slot. Instead of directly screwing each bracket to the board (which would require multiple holes), the fixing member mediates the connection by providing a shared mounting interface. The tongue inserts of both brackets engage with this single fixing member, reducing the overall number of screw holes needed in the circuit board.
2Strength
If multiple screw connection structures are used, then connection firmness is improved, but circuit board utilization is reduced
Solution Approach 1:
The patent combines multiple fastening functions into a single fixing member that secures both brackets simultaneously. Instead of using separate screw connections for each bracket (which would consume multiple areas of the circuit board), the shared fixing member consolidates these fastening functions into one location. This preserves connection firmness through the slot-and-tongue mechanism while freeing up circuit board area for other purposes.
3Reliability
If brackets are fastened individually with screws, then fastening reliability is improved, but manufacturing complexity increases
Solution Approach 1:
The patent merges the fastening operations for both brackets into a single manufacturing step. The fixing member is designed with a single slot that accommodates tongue inserts from both the first and second brackets, allowing both brackets to be fastened simultaneously to the circuit board. This reduces manufacturing complexity by eliminating the need for separate fastening operations while maintaining reliable connections through the shared fixing mechanism.
Data Source
AI summary
A circuit board assembly and an electronic device. The circuit board assembly includes: a circuit board to which a first board-to-board connector and a second board-to-board connector are mounted; a first bracket, where the first bracket is mounted on the circuit board, the first bracket is located on a side of the first board-to-board connector away from the circuit board; a second bracket, where the second bracket is mounted on the circuit board, and the second bracket is located on a side of the second board-to-board connector away from the circuit board, and the second bracket is disposed neighboring to the first bracket and the second bracket is provided with a tongue insert; and a fixing member, where the fixing member is connected to the circuit board and the fixing member is provided with a slot.