Inductive Power Transfer Pad Forced-Air Cooling
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Solution Overview
Problem
Inductive power transfer pads face challenges in effectively dissipating heat generated during energy transfer, which can lead to overheating and potential damage to electronic components.
Innovation Solution
The inductive power transfer pad is equipped with an airflow generating system that directs airflow into the surroundings to remove heated air, either from the interior or from the space between the pad and a secondary unit, using fans, pumps, or pressure-difference generating means to create airflow through ducts and channels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If heat dissipation is performed by heat conduction or heat radiation into the surroundings, then the structure remains simple, but the cooling effectiveness is insufficient and components may overheat
Solution Approach 1:
The patent applies pneumatic cooling by introducing an airflow generating system that creates forced convection currents through the inductive power transfer pad. Fans or blowers move air through ducts and channels to actively remove heat from electronic components and the air gap, transitioning from passive thermal radiation to active pneumatic cooling for improved heat dissipation effectiveness
2Temperature
If an airflow generating system is introduced to improve cooling, then heat dissipation effectiveness is improved, but the device complexity increases
Solution Approach 1:
The cooling system is segmented into distinct functional modules: airflow generation units (fans/blowers), ductwork, distribution channels, and outlet openings. This segmentation allows each component to be optimized independently and facilitates maintenance while achieving comprehensive cooling coverage across the inductive power transfer pad assembly
Solution Approach 2:
The airflow generating system serves multiple functions simultaneously: it cools electronic components within the pad, removes heat from the air gap between primary and secondary conductors, and provides forced convection to enhance overall thermal management. This multi-functionality justifies the added complexity by addressing multiple thermal challenges with a single integrated system
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 method effectively cools the inductive power transfer pad by removing accumulated heat, preventing component damage and ensuring efficient energy transfer.
Implementation Method 1
an airflow generating system configured to generate an airflow during an inductive power transfer, the airflow being directed into the surroundings of the inductive power transfer pad
Implementation Method 2
a conductor arrangement for generating or receiving an electromagnetic field during an inductive power transfer
Data Source
Figure 1~2
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AI summary
The invention relates to an inductive power transfer pad (10), comprising a conductor arrangement (36) for generating or receiving an electromagnetic field during an inductive power transfer and an airflow generating system (37) that is configured to generate an airflow (22) during an inductive power transfer, said airflow (22) being directed into the surroundings of the inductive power transfer pad (10). Further, the invention relates to an arrangement (11) for an inductive power transfer and a method for cooling an inductive power transfer pad (10).