Linear Motor Coil Pair Layout With Continuous Conductor Wiring
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Solution Overview
Problem
Existing winding arrangements face challenges in achieving a thin thickness dimension with high copper density while minimizing wiring errors and short circuits, due to complex coil arrangements and high costs associated with electrical connections.
Innovation Solution
The winding arrangement configures at least one coil pair as a single conductor coil pair, where the first and second coils are connected electroconductively in the coil-pair eye region, forming a continuous electrical conductor, reducing the number of connecting sections and facilitating easier assembly and reducing the risk of short circuits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If coils of different layers are arranged offset relative to each other along the sequence axis to achieve high copper density, then the copper fraction increases, but the wiring complexity and risk of incorrect connections increase significantly
Solution Approach 1:
The patent merges the first and second coils into a single continuous conductor that forms both coils in sequence, eliminating the need for separate wiring connections between layers. This single-conductor approach maintains high copper density through the offset arrangement while drastically reducing wiring complexity and connection points.
Solution Approach 2:
The single continuous conductor is segmented into distinct coil sections (first coil and second coil) that are arranged in specific spatial relationships, allowing each section to be optimized for its function while maintaining overall simplicity through the continuous conductor design.
2Reliability
If multiple intercrossing conductor sections are used to connect coils in different layers, then electrical connectivity is achieved, but the risk of short circuits increases
Solution Approach 1:
By combining all conductor sections into a single continuous conductor, the patent eliminates multiple intercrossing conductors that could potentially short circuit. The single conductor path is inherently more reliable as it removes the complexity of multiple isolation points and crossing locations where short circuits could occur.
3Quantity of substance
If coils are arranged in multiple layers with complex offset patterns, then copper density increases, but the thickness dimension increases
Solution Approach 1:
The patent utilizes the offset arrangement along the sequence axis (one dimension) to achieve high copper density without increasing thickness (another dimension). The single continuous conductor winds through multiple layers in an offset pattern that maximizes copper utilization while maintaining a compact thickness profile.
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 configuration allows for a more compact and reliable winding arrangement with reduced error potential in wiring, enabling the generation of a homogeneous magnetic field while maintaining efficient thermal management and mechanical stability.
Implementation Method 1
winding arrangement for generating a temporally and spatially varying magnetic field in the spatial neighborhood of the winding arrangement
Implementation Method 2
heat arising in the coil pair due to the Ohmic resistance can be transferred by conduction to the cooler housing and from there transported away by convection through the cooling fluid
Implementation Method 3
heat arising in the coil pair due to the Ohmic resistance can be transferred by conduction to the cooler housing
Data Source
AI summary
A conductive winding arrangement for generating a varying magnetic field in the neighborhood of the winding arrangement, comprising a plurality of coil pairs arranged one after another along a sequence axis with a virtual coil pair winding axis oriented transversely to the sequence axis, of which each coil pair exhibits a first coil and a second coil, each with a coil winding axis parallel or collinear respectively to the coil pair winding axis, where the first and the second coil are arranged axially adjacent to each other relative to the coil pair winding axis in such a way that turns of the first and of the second coil are axially adjacent to each other and that eye regions of the first coil and of the second coil are axially adjacent to each other while forming a common coil-pair eye region, where the coil pair winding axis penetrates through the coil-pair eye region; at least one coil pair being configured as a single conductor coil pair, in which the first and the second coil each exhibit a connecting section located radially outside relative to the coil pair winding axis for connecting to a phase of a power supply or to a further coil and in the coil-pair eye region they are connected to each other electroconductively.