Wireless Transmission Resonant Capacitor Spacing for Heat Management
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Solution Overview
Problem
Conventional wireless power supply systems face challenges in heat resistance performance, particularly when high power is applied to resonant capacitor groups, leading to inadequate thermal management.
Innovation Solution
A wireless transmission device is designed with a resonant power storage element module that includes a substrate with litz wire and stranded wire connections, where the distance between adjacent capacitor elements on the substrate is optimized to reduce heat accumulation, and a housing reinforcement pillar with high thermal conductivity is used to enhance heat dissipation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If high power is applied to the resonant capacitor group, then the power transmission capability is improved, but the heat resistance performance deteriorates
Solution Approach 1:
The patent applies local quality by creating asymmetric spacing between capacitor elements based on their connection to different wire types. Capacitor elements connected to the second electric wire (higher heat generation) are spaced farther apart than those connected to the first electric wire (lower heat generation). This localized differentiation in spacing addresses the thermal management needs of specific high-heat regions while maintaining overall compactness.
Solution Approach 2:
The patent changes the physical parameter of spacing distance between capacitor elements to manage heat distribution. By varying the spacing parameter selectively in different regions of the capacitor group, the design optimizes heat dissipation without compromising the overall power transmission capability or requiring fundamental changes to the resonant circuit operation.
2Volume of moving object
If capacitor elements are arranged closely together, then the device compactness is improved, but the heat accumulation increases
Solution Approach 1:
The patent implements local quality by applying different spacing strategies to different regions of the capacitor group. Rather than uniformly increasing spacing throughout the entire device (which would compromise compactness), the invention selectively increases spacing only in regions where heat generation is highest, thereby maintaining overall compactness while addressing localized heat accumulation problems.
Solution Approach 2:
The patent employs asymmetry by creating non-uniform spacing patterns among capacitor elements. The asymmetric arrangement, where certain elements are spaced farther apart based on their thermal characteristics, allows the design to optimize heat dissipation in critical areas while maintaining close spacing in lower-heat regions, thus balancing compactness and thermal management.
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 effectively suppresses heat accumulation and temperature rise in the resonant capacitor modules, thereby improving the heat resistance performance of the wireless transmission device.
Implementation Method 1
a coil configured to generate a magnetic field
Implementation Method 2
capable of accumulating electric power, and configured to constitute a resonance circuit corresponding to a power transmission frequency in cooperation with the coil
Implementation Method 3
a second electric wire that is larger in an amount of heat generation than that of the first electric wire at a time of energization
Data Source
AI summary
A wireless transmission device includes a coil that generates a magnetic field, and a resonant power storage element module electrically connected with the coil, capable of accumulating electric power, and constitutes a resonance circuit corresponding to a power transmission frequency in cooperation with the coil when transmitting the electric power via the coil. The resonant power storage element module includes a substrate with which a first electric wire and a second electric wire larger in an amount of heat generation than the first electric wire at the time of energization are connected, and a plurality of power storage elements mounted on the substrate. A distance between the power storage elements adjacent to each other on a side of a connection portion connected with the second electric wire in the substrate is larger than that on a side of a connection portion connected with the first electric wire in the substrate.