Power Control Module Socket Segmentation for Contact Reliability
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Solution Overview
Problem
Power control modules in portable electronic devices often overheat or burn due to poor contact between the plug and socket, leading to safety and reliability issues.
Innovation Solution
A power control module with a socket having two negative terminals, a switch circuit, and an interface control circuit that determines the contact state by voltage level, enabling or disabling power supply to prevent overheating and burnout.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the power control module uses a single negative terminal in the socket, then the device complexity is reduced, but the reliability deteriorates due to poor contact causing overheat or burnout
Solution Approach 1:
The single negative terminal is segmented into two separate negative terminals (first negative terminal and second negative terminal) arranged in sequence. This segmentation allows the system to detect contact quality by comparing voltage levels at different positions, thereby improving reliability without significantly increasing overall complexity.
Solution Approach 2:
The interface control circuit acts as an intermediary that monitors the voltage level of the second negative terminal and controls the switch circuit accordingly. This intermediary component enables automatic detection and response to poor contact conditions, preventing overheating and burnout while maintaining system reliability.
2Object-affected harmful factors
If the power control module monitors contact state continuously, then the safety is improved, but the device complexity increases due to additional monitoring components
Solution Approach 1:
The system uses the existing electrical connection structure itself to monitor contact quality. The voltage level at the second negative terminal naturally indicates contact state, eliminating the need for separate sensing components. This self-service approach improves safety while minimizing additional complexity.
Solution Approach 2:
The second negative terminal serves dual functions: it provides the normal electrical connection for power return and simultaneously serves as a sensing point for contact quality detection. This multi-functionality allows safety monitoring without adding dedicated sensing components, thus improving safety without significantly increasing complexity.
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 module effectively prevents overheating and burnout by ensuring proper contact between the plug and socket, enhancing safety and reliability by enabling or disabling power supply based on contact state.
Implementation Method 1
The interface control circuit determines whether or not to generate a switching signal to the switch circuit according to a voltage level of the second negative terminal
Implementation Method 2
The switch circuit outputs the power voltage when receiving the switching signal
Data Source
AI summary
A power control module including a socket, a switch circuit and an interface control circuit is provided. A plug is adapted to be inserted into the socket, and the socket has a positive terminal, a first negative terminal and a second negative terminal. When the plug is inserted into the socket, a negative terminal of the plug sequentially contacts the first negative terminal and the second negative terminal. The switch circuit receives a power voltage through the positive terminal. The interface control circuit determines whether to generate a switching signal to the switch circuit according to a voltage level of the second negative terminal. When receiving the switching signal, the switch circuit outputs the power voltage.