Charging Interface Housing for Automatic Power-On Detection
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Solution Overview
Problem
Current charging control circuits for mobile power supplies have poor reliability due to their complexity, which is attributed to the use of integrated circuits or discrete detection circuits.
Innovation Solution
A charging control circuit with a communications interface housing, a communications interface, and a control sub-circuit, where the interface housing includes a first and second conductive part separated by an insulating part, allowing the control sub-circuit to detect a voltage change and initiate power supply to provide a charging voltage when the first voltage transitions to a second voltage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an integrated circuit IC or detection circuit built by discrete devices is used to implement automatic charging control, then the charging control function can be achieved, but the device complexity increases and reliability deteriorates
Solution Approach 1:
The patent merges the housing structure with the detection circuit by integrating conductive parts directly into the housing. The housing itself becomes part of the detection circuit, eliminating the need for separate detection components and reducing overall circuit complexity while maintaining reliability.
Solution Approach 2:
The housing serves multiple functions: it provides mechanical protection, establishes electrical connections through conductive parts, and acts as part of the detection circuit. This multi-functionality reduces the number of separate components needed, simplifying the overall circuit design.
2Ease of operation
If a manual charging control circuit with a switch is used, then power output can be manually controlled, but the device complexity increases
Solution Approach 1:
The switch is integrated into the housing structure as a conductive part, merging the mechanical operation component with the electrical connection component. This eliminates separate control elements and simplifies the overall circuit while maintaining manual control functionality.
3Extent of automation
If an automatic charging control circuit is used to detect load and enable power output, then charging can be automatically initiated, but the device complexity increases
Solution Approach 1:
The detection circuit is merged with the housing structure by making the housing itself conductive and part of the detection path. When a device is connected, the housing's conductive parts detect the voltage change directly, eliminating the need for separate detection circuits and reducing complexity.
Solution Approach 2:
The housing structure performs the detection function itself through its conductive parts, rather than requiring an external detection circuit. The housing's own structure is utilized to detect voltage changes, making the system self-sufficient and simpler.
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
This design simplifies the charging control circuit, reduces required components, and enhances reliability by automatically controlling power supply based on voltage changes, ensuring safe and efficient charging.
Implementation Method 1
configured to control, when it is detected that a voltage of the first conductive part changes from the first voltage to the second voltage, starting of a power supply apparatus
Data Source
AI summary
A charging control circuit includes: a communications interface housing, a communications interface, and a control sub-circuit the communications interface housing includes a first conductive part, a second conductive part, and an insulating part, and the insulating part is disposed between the first conductive part and the second conductive part; the first conductive part is connected to a first voltage terminal; the second conductive part is connected to a second voltage terminal; a first voltage accessed at the first voltage terminal is greater than a second voltage accessed at the second voltage terminal; and when it is detected that a voltage of the first conductive part changes from the first voltage to the second voltage, starting of a power supply apparatus electrically connected to the communications interface, so that the power supply apparatus provides a charging voltage to the communications interface.