Coil Unit Connection Structure for Integrated Power Wiring
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Solution Overview
Problem
Existing coil unit connection structures face challenges in wiring power cables due to varying lengths of coil units, making it difficult to integrate power cable connections into one side in the arrangement direction.
Innovation Solution
The coil unit connection structure electrically connects multiple coils and return wires, allowing for integration of power cable connections on one side by using detachable relays and terminals with low resistance connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If power cables are connected to both ends of coil units in arrangement direction, then electrical connection is achieved, but wiring complexity increases and cable length must vary with number of coil units
Solution Approach 1:
The patent merges the connection points of multiple coil units to a single location on one side. Specifically, the power cable L connects to one end of each coil unit through terminal units, and the power cable N connects to the other end through a common terminal unit, integrating all connections into one side rather than requiring connections at both ends of each coil unit.
Solution Approach 2:
The terminal units serve multiple functions: they provide electrical connection points for power cables, support for coil units, and integration points for return wires. The common terminal unit at one end handles connections for multiple coil units simultaneously, making the structure universal and adaptable to different numbers of coil units without changing cable lengths.
2Reliability
If coil units have different lengths based on number of units, then power transfer capability is maintained, but power cable length must be changed
Solution Approach 1:
The patent introduces a movable carriage that can position the secondary coil to face any of the plurality of primary coil units arranged in the moving direction. This dynamic positioning capability allows the system to maintain power transfer reliability regardless of the number or length of coil units, while the power cables maintain fixed lengths connected to terminal units on one side.
3Reliability
If power cables are connected at both ends, then complete electrical circuit is formed, but integration of connections into one side becomes difficult
Solution Approach 1:
The patent introduces terminal units as intermediary components between the power cables and the coil units. These terminal units are mounted on a carriage and provide standardized connection points. The power cables L and N connect to these terminal units, which then connect to the coil units, allowing all connections to be integrated on one side while maintaining complete electrical circuits through the return wires that connect adjacent coil units.
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 solution simplifies the wiring of power cables by integrating connections on one side, reducing power loss and enabling easy removal of individual coil units while maintaining stable coil support.
Implementation Method 1
When an alternating current is passed through the primary coil, a magnetic field is created around the primary coil, and an induced electromotive force occurs in the secondary coil due to the magnetic flux passing through the secondary coil.
Data Source
AI summary
A coil unit connection structure is provided which can integrate locations connected to a power cable into one side in an arrangement direction of a plurality of coil units. In a coil unit connection structure that electrically connects a plurality of coil units, each of the coil units includes a coil and a return wire. A plurality of the coils of the plurality of coil units is electrically connected to each other. A plurality of the return wires of the plurality of coil units is electrically connected to each other. A terminal unit is provided which includes a connecting wire that electrically connects the coil and the return wire of the coil unit at the terminal end.