Segmented Capacitive Coupling Device for Position Tolerance
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Solution Overview
Problem
Capacitive communication systems face inefficiencies due to incorrect positioning of coupling surfaces, leading to weakened energy and data transmission, and require costly precise positioning to compensate for suboptimal coupling, which increases production effort and costs.
Innovation Solution
A capacitive coupling device with a segmented coupling surface, allowing each segment to be selectively connected to different supply voltages or grounded, enabling precise mapping of coupling surface geometries and maximizing capacitance through a control circuit that adjusts segment connections for optimal energy transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If precise positioning of coupling surfaces is implemented, then energy transmission efficiency is improved, but manufacturing cost and production effort increase significantly
Solution Approach 1:
The coupling surface is divided into multiple independently controllable segments. Each segment can be selectively activated or deactivated based on the detected position of the coupling partner, allowing the system to adapt to positioning variations without requiring high manufacturing precision. This segmentation enables the system to maintain efficient energy transmission despite manufacturing tolerances.
Solution Approach 2:
The coupling surface configuration is made dynamic through switchable segments that can be reconfigured during operation. The system detects the position of the coupling partner and dynamically activates only the relevant segments, transforming a static, precision-dependent design into a dynamic, adaptive system that compensates for positioning variations.
2Loss of energy
If precise positioning of coupling surfaces is implemented, then energy transmission efficiency is improved, but device complexity increases
Solution Approach 1:
By segmenting the coupling surface into multiple independently controllable units, the system reduces the complexity of achieving precise positioning. Instead of requiring the entire coupling surface to be precisely positioned, only the active segments need to align, which is less demanding and easier to achieve in practice.
Solution Approach 2:
The system changes the operational parameters of the coupling surface by selectively activating specific segments based on detected position. This parameter change approach allows the system to maintain optimal energy transmission efficiency while accommodating variations in positioning, thereby reducing the complexity of precise positioning requirements.
3Reliability
If energy buffer is increased to compensate for weak coupling, then reliability is improved, but energy consumption increases
Solution Approach 1:
Instead of uniformly increasing energy buffer across the entire coupling surface, the system applies energy selectively to the locally relevant segments that are actually engaged with the coupling partner. This local quality approach ensures reliable coupling where needed while avoiding unnecessary energy consumption in inactive areas.
Solution Approach 2:
The system uses feedback from position detection to automatically configure which segments are active, enabling the coupling device to self-adjust its energy distribution. This self-service mechanism ensures that energy is consumed only where necessary to maintain reliable coupling, eliminating the need for excessive overall energy buffer.
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 enhances energy transmission efficiency and allows for manufacturing with higher positioning tolerances, reducing costs and improving performance in capacitive coupling systems, especially for mass-produced components like inhalation liquid containers or toner cartridges.
Implementation Method 1
In the case of communication systems which are based on a capacitive electromagnetic coupling
Implementation Method 2
the coupling surface segments connected to the first supply voltage form, with a first coupling surface area of the capacitive coupling means, a first capacitor, and the coupling surface segments connected to the second supply voltage form, with a second coupling surface area of the capacitive coupling means, a second capacitor
Data Source
AI summary
A capacitive coupling device for capacitive coupling to a capacitive coupling means which is arrangeable on the capacitive coupling device. The capacitive coupling device can have a first coupling surface, which has at least three coupling surface segments which are arranged separated from one another, a voltage supply configured to provide a first supply voltage and a second supply voltage which is different therefrom, and a control circuit, which is arranged to connect each of the coupling surface segments selectively to the first supply voltage or to the second supply voltage in an electrically conductive manner or to disconnect it from the control circuit in such a way that the coupling surface segments connected to the first supply voltage form, with a first coupling surface area of the capacitive coupling means, a first capacitor, and the coupling surface segments connected to the second supply voltage form, with a second coupling surface area of the capacitive coupling means, a second capacitor.