Inductive Charging Base Assembly With Press-Fit Electronics Cooling
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Solution Overview
Problem
Existing floor assemblies for inductive vehicle charging systems experience heat-related issues, leading to potential damage and reduced performance.
Innovation Solution
The floor assembly incorporates a mechanical biasing system using support columns with contours to press the electronic system against a base plate, enhancing heat transfer and cooling efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If the floor assembly operates at high power for inductive charging, then charging performance is improved, but heat generation increases causing thermal damage and reduced service life
Solution Approach 1:
The patent converts the harmful heat generated during inductive charging into a beneficial cooling mechanism by mechanically pressing the electronic system against the base plate through support columns with contours. This pressure ensures optimal thermal contact between the electronic system and the base plate, allowing efficient heat dissipation while maintaining high charging power operation
2Temperature
If the electronic system is mechanically pressed against the base plate to improve heat transfer, then cooling efficiency is improved, but manufacturing complexity increases
Solution Approach 1:
The support columns serve multiple functions: they provide mechanical support for the core arrangement, position the electronic system within the cavity, and through their contours, apply mechanical pressure to improve thermal contact. This multi-functionality achieves effective cooling without adding separate complex cooling mechanisms
Solution Approach 2:
The contours on the support columns automatically adjust to press the electronic system against the base plate, creating optimal thermal contact without requiring external adjustment mechanisms. The structure self-regulates the pressure to ensure efficient heat transfer while maintaining simplicity
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 allows for increased power operation and reduced risk of thermal damage, extending the service life and durability of the floor assembly.
Implementation Method 1
The electronic system is mechanically pressurized against the base plate in the spacing direction by means of at least one of the at least one contours. This results in a defined and simple positioning of the electronics relative to the base plate using existing means, so that the heat transfer between the electronic system and the base plate is increased
Implementation Method 2
The stationary assembly outside the vehicle contains a primary coil which interacts inductively with a secondary coil of the assembly in the vehicle in order to charge the vehicle
Implementation Method 3
The floor assembly also has a core arrangement comprising at least one core body for guiding the magnetic flux
Data Source
AI summary
A floor assembly for an inductive charging device is disclosed. The floor assembly includes a base plate and a coil spaced apart from each other in a spacing direction. A core arrangement having at least one core body for magnetic flux guidance is arranged between the base plate and the coil. A cavity is formed between the core arrangement and the base plate. At least one support column extends between at least one of the at least one core body and the base plate. An electronic system arranged in the cavity. The support column has a contour. The electronic system is mechanically pressurized against the base plate in the spacing direction via the contour.