Circuit Board Pressure Monitoring for Screw-Tightening Control
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Solution Overview
Problem
Current circuit board installations risk damage to wafers due to improper screw tightening, as the pound number is often unspecified, leading to potential deformation and system instability during operation.
Innovation Solution
A circuit board with a standby circuit incorporating a first pressure detection circuit and control circuit that monitors pressure at critical areas, outputting signals to manage power transmission and activate warning elements when pressure is outside a predetermined range, ensuring proper screw tightening and preventing damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the circuit board is locked by screws without specifying the pound number, then the installation process is simple and quick, but the circuit board may deform and wafers may be damaged due to improper tightening force
Solution Approach 1:
The patent applies preliminary action by pre-installing a pressure detection circuit on the circuit board before actual operation. This circuit proactively monitors the pressure at critical locations (such as screw fixation positions) and can detect potential deformation risks before they cause damage to wafers or system failure. The detection circuit is prepared in advance, enabling real-time monitoring without affecting the simplicity of the installation process.
Solution Approach 2:
The patent implements feedback by using the pressure detection circuit to continuously monitor the pressure state at critical locations on the circuit board. When the detected pressure exceeds a predetermined threshold or when deformation is detected, the system provides feedback through warning signals (such as LED indicators or alarm outputs) to alert operators. This feedback mechanism enables real-time adjustment of screw tightening force, preventing over-tightening damage while maintaining installation efficiency.
2Reliability
If inspection personnel manually check the circuit board after screw locking, then some problems may be detected, but human error may lead to missed detections and system risks
Solution Approach 1:
The patent applies self-service by enabling the circuit board to autonomously monitor its own pressure state through the integrated pressure detection circuit. The circuit automatically detects pressure changes at critical locations and generates warning signals without requiring manual inspection. This self-monitoring capability eliminates human error in detection while maintaining relatively simple system architecture, as the detection function is built into the board itself rather than requiring external complex monitoring equipment.
3Reliability
If pressure detection circuits are installed at all critical areas, then deformation risks are fully monitored, but the circuit board complexity and cost increase
Solution Approach 1:
The patent applies local quality by strategically placing pressure detection circuits only at critical locations on the circuit board, such as areas with screw fixations or components sensitive to pressure changes. Rather than uniformly distributing sensors across the entire board, the detection circuits are concentrated at specific high-risk zones where deformation is most likely to occur. This approach provides effective monitoring coverage at critical points while minimizing the overall number of sensors and reducing circuit board complexity and cost.
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 ensures safe operation by preventing deformation and protecting electronic components through controlled power management and warning mechanisms, reducing the risk of damage and malfunction.
Implementation Method 1
a first pressure detection circuit (31) located at an area (11) being monitored of the board body (10)
Data Source
AI summary
A monitoring method is adapted for a circuit board. The circuit board includes a board body, a main circuit, and a standby circuit. The main circuit is located on the board body. The standby circuit is located on the board body, and is electrically connected to the main circuit. The standby circuit includes a first pressure detection circuit and a control circuit. The first pressure detection circuit is located at an area being monitored of the board body, and the control circuit outputs a first signal or a second signal according to a first detection value and a first predetermined range of the first pressure detection circuit.