Thin-Film Power Supply Assembly for IoT Sensors
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Solution Overview
Problem
Conventional sensors require a power supply system that is bulky and inconvenient, necessitating a miniaturized, thin-film design with long-term durability and reliability, especially for Internet of Things applications where sensors need to be compact and efficient.
Innovation Solution
A power supply assembly comprising a photoelectric converting element, a storage capacitor, an energy storage battery, and an energy management module that controls the charging and discharging of these components to ensure stable power supply, utilizing a thin-film structure and multiple switching units to optimize energy distribution between the elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If conventional power supply systems are used for sensors, then the sensors can operate reliably, but the sensors become bulky and inconvenient
Solution Approach 1:
The patent combines multiple power supply components (photoelectric converting element, storage capacitor, energy storage battery) into an integrated power supply assembly that works synergistically. The photoelectric converting element charges the storage capacitor during the day, which then charges the energy storage battery when needed, creating a compact yet reliable power system that eliminates the bulk of conventional separate power supplies.
Solution Approach 2:
The storage capacitor serves as a preliminary energy buffer that accumulates charge from the photoelectric converting element during active periods and rapidly discharges to charge the energy storage battery when the photoelectric element is inactive. This preliminary action ensures continuous power supply without requiring a bulky conventional power system.
2Volume of moving object
If the sensor is miniaturized for Internet of Things applications, then the sensor becomes compact and convenient, but the power supply system becomes insufficient
Solution Approach 1:
The power supply assembly uses a nested structure where the storage capacitor is positioned between the photoelectric converting element and the energy storage battery. The storage capacitor acts as an intermediate buffer layer, nesting the charging function within the larger battery storage function, enabling compact miniaturization while maintaining extended power duration through the cascaded energy transfer mechanism.
Solution Approach 2:
The system ensures continuous useful action by maintaining the storage capacitor charged during photoelectric activity and using it to continuously charge the energy storage battery during inactivity periods. This continuous energy transfer ensures the sensor has adequate power duration even in miniaturized form, eliminating the need for larger conventional power supplies.
3Ease of manufacture
If a simple power supply structure is used, then the manufacturing is easier, but the power supply stability when photoelectric element is inactive is insufficient
Solution Approach 1:
The power supply assembly is segmented into distinct functional modules: photoelectric converting element, storage capacitor, energy storage battery, and switching circuitry. Each component has a specific function and can be manufactured independently using standard thin-film processes, maintaining ease of manufacture. The segmentation also allows the system to maintain stability during inactivity by isolating and activating only the necessary components through the switching unit.
Solution Approach 2:
The storage capacitor serves as an intermediary component that mediates between the photoelectric converting element and the energy storage battery. During inactivity periods, it acts as a buffer that maintains voltage stability while transferring energy to the battery, ensuring power supply stability without requiring complex manufacturing. The switching unit further mediates by controlling when each component is active, simplifying the overall system control.
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 provides a lightweight, compact power supply that maintains stable operation even when the photoelectric converting element is inactive, ensuring long-term power to sensors and meeting the requirements of miniaturization and reliability for Internet of Things devices.
Implementation Method 1
a photoelectric converting element, a storage capacitor, an energy storage battery and an energy management module. The energy management module is configured to control the photoelectric converting element to charge the storage capacitor and the energy storage battery
Data Source
AI summary
A power supply assembly and an electronic device are disclosed. The power supply assembly includes a photoelectric converting element, a storage capacitor, an energy storage battery and an energy management module. The energy management module is configured to control the photoelectric converting element to charge the storage capacitor and the energy storage battery and control the storage capacitor to charge the energy storage battery. The power supply assembly can provide power stably in a longer term.