Wireless Tire Air Compressor Power Transfer by Inductive Coupling
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Solution Overview
Problem
Existing compressed-air providing systems for vehicle tires rely on wired connections to an energy source, which can be inconvenient and require physical cables, limiting flexibility and insulation options.
Innovation Solution
A wireless energy transmission system using inductive coupling based on electromagnetic fields is implemented to supply energy to the compressor's electric motor, eliminating the need for wired connections and allowing for insulated, cable-free operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If wired connections are used to supply energy to the electric motor, then reliable energy transmission is achieved, but flexibility and insulation options are limited
Solution Approach 1:
The patent replaces the mechanical wired connection system with an electromagnetic field-based wireless energy transmission system. The compressor unit communicates with the external energy supply source through electromagnetic fields rather than physical cable connections, eliminating mechanical constraints while maintaining reliable energy transfer.
Solution Approach 2:
The patent introduces electromagnetic fields as an intermediary medium to transfer energy between the compressor unit and the external power source. This intermediary enables energy transmission without direct physical contact, providing both flexibility and reliable energy supply simultaneously.
2Ease of operation
If cable connections are used for energy supply, then stable power transmission is achieved, but insulation and closed housing options are restricted
Solution Approach 1:
The patent substitutes the mechanical cable connection with wireless electromagnetic energy transmission. This allows the compressor unit to be fully enclosed in sealed housings with complete insulation, as no physical penetrations or cable access points are required, while maintaining stable power transmission through the electromagnetic field.
3Device complexity
If wired energy supply is used, then consistent power delivery is achieved, but device complexity increases due to connection requirements
Solution Approach 1:
The patent extracts and removes the cable connection subsystem from the compressor unit design. By eliminating the need for physical connectors, cables, and associated mounting structures, the device complexity is reduced while wireless electromagnetic transmission maintains consistent power delivery.
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
Enables convenient, insulated energy supply to the compressor, enhancing flexibility and efficiency with the ability to transmit power wirelessly over short distances, and potentially extending the range with resonant circuits.
Implementation Method 1
For the inductive transmission of energy, a magnetic alternating field is generated on the transmitter side
Implementation Method 2
An alternating voltage is induced in the receiver coil
Implementation Method 3
The resonance between the oscillating circuits leads to improved magnetic coupling between the transmitter coil and receiver coil at the transmission frequency
Data Source
AI summary
The invention relates to a compressed-air providing system (10), in particular for providing air for tires (14) of a motor vehicle, comprising a compressor (16) having an electric motor (18), in particular for driving a compressing unit of the compressor (16), the compressed-air providing system (10) having means (22) for connecting the compressed-air providing system (10), in particular the electric motor (18), to an energy supply source (24) for the purpose of supplying the electric motor (18) with electrical energy. According to the invention, the means (22) comprises means for wireless transmission of energy.