Wireless Power Testing Device Thermal Emulation
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Solution Overview
Problem
Current wireless power transfer technologies face challenges in effectively measuring and managing thermal exposure in mobile devices, which can lead to component damage, prolonged charging times, and safety hazards due to excessive heat generation during wireless charging.
Innovation Solution
A testing device with a wireless power receiver coil and thermo-sensory means, including temperature sensors, is used to emulate the thermal exposure of a mobile device during wireless power transfer, providing measurement data to assess and evaluate thermal conditions, and optionally generating an alarm if temperature deviations exceed a threshold.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If wireless power transfer is implemented using magnetic induction between coils, then power transfer capability is improved, but thermal exposure and heat generation increase causing component damage and safety hazards
Solution Approach 1:
A testing device with a housing serving as a thermal intermediary is introduced between the wireless power transmitter and the mobile device. The housing contains temperature sensors that act as intermediaries to monitor thermal conditions, and the device emulates the thermal characteristics of actual mobile devices to assess heat exposure risks without directly exposing the mobile device to potentially harmful thermal conditions.
Solution Approach 2:
The testing device creates a thermal copy or emulation of a mobile device using a housing with specific thermal properties. This copy includes temperature sensors positioned to replicate the thermal monitoring function, allowing assessment of thermal exposure effects on mobile devices without directly testing the actual devices under hazardous conditions.
2Reliability
If thermal exposure testing is performed on mobile devices during wireless charging, then safety assessment is improved, but device complexity and testing setup requirements increase
Solution Approach 1:
The testing device is designed as a universal platform that can assess thermal exposure for different types of mobile devices through a standardized housing and sensor configuration. The device performs multiple functions including thermal monitoring, emulation of mobile device thermal characteristics, and safety assessment, reducing the need for multiple specialized testing setups.
Solution Approach 2:
The testing device is designed to be self-contained with integrated temperature sensors, housing with appropriate thermal properties, and monitoring capabilities that automatically assess thermal exposure without requiring complex external testing equipment or setups. The device independently performs safety assessments.
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 solution allows for accurate assessment and management of thermal exposure, preventing component damage and ensuring user safety by providing real-time thermal monitoring and alerting mechanisms, thus improving the reliability and safety of wireless charging systems.
Implementation Method 1
heat will be generated by magnetic induction in the secondary coil of the power receiver
Implementation Method 2
a first temperature sensor adapted to measure a temperature at a first position inside the housing, a second temperature sensor adapted to measure a temperature at a second position external to the housing
Data Source
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AI summary
A testing device (30) is provided for use with a wireless power transmitter device (20) having a wireless power transmitter coil (24). The testing device (30) has a housing (50), the housing having a bottom side (53) adapted for placement on a surface (25) of the wireless power transmitter device (20), and a top side (54) opposite to the bottom side (53). A wireless power receiver coil (34) is provided in the housing. The testing device (30) also has thermo sensory means (31) and an interface (33) to provide measurement data from the thermo sensory means (31). The thermo sensory means (31) includes at least a first temperature sensor (55) adapted to measure a temperature at a first position inside the housing (50), and a second temperature sensor (56) adapted to measure a temperature at a second position external to the housing (50).