Magnetic Inductor Coil Coupling for Thermal Expansion
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Solution Overview
Problem
Annular electromagnetic pumps equipped with magnetic inductors face challenges in mounting complexity and low resistance to thermal expansion due to existing coupling configurations, which limits their compatibility with high-power applications.
Innovation Solution
A magnetic inductor design featuring N pairs of elementary coils with the same winding direction, where connections between coils allow for phase alternation and thermal expansion tolerance, with conductors dimensioned to absorb expansion and improve mechanical strength, and a compact configuration using transverse and longitudinal grooves for conductor placement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional coupling configurations are used for elementary coils in magnetic inductors, then the mounting process becomes complex, but the resistance to thermal expansion remains low
Solution Approach 1:
The patent applies dynamics by making the conductor flexible rather than rigid, allowing it to dynamically adapt to thermal expansion of the elementary coils. The flexible conductor can bend and stretch to accommodate dimensional changes while maintaining electrical connectivity, thus providing both ease of mounting and resistance to thermal expansion effects.
Solution Approach 2:
The patent changes the physical parameter of the conductor from rigid to flexible, enabling it to absorb thermal expansion through elastic deformation. This parameter change allows the conductor to maintain electrical connection while accommodating dimensional changes in the elementary coils during thermal cycling.
2Device complexity
If conventional coupling configurations are used for elementary coils, then mounting is complicated, but mechanical strength is insufficient for high-power applications
Solution Approach 1:
The patent changes the mechanical parameter of the conductor from rigid to flexible, which paradoxically improves mechanical strength in the context of thermal cycling. The flexible conductor can absorb stress through elastic deformation rather than fracturing, providing superior mechanical strength for high-power applications where thermal expansion occurs.
Solution Approach 2:
The flexible conductor acts as a cushioning element that anticipates and absorbs thermal expansion stresses before they can cause damage to the rigid components. This beforehand cushioning protects the overall structure from thermal shock and repeated expansion-contraction cycles.
3Ease of manufacture
If conductors are placed inside the magnetic inductor body, then mounting is simplified, but space for conductor placement is limited
Solution Approach 1:
The patent applies nesting by placing the flexible conductor inside the magnetic inductor body, with the conductor nested within the hollow interior space. This allows the conductor to be positioned close to the elementary coils while maintaining electrical connectivity, simplifying mounting without requiring excessive external space.
Solution Approach 2:
The patent utilizes the internal three-dimensional space of the magnetic inductor body for conductor placement, transitioning from external to internal dimensionality. This allows efficient use of the available volume while maintaining electrical connections between elementary coils.
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 design enhances thermal expansion tolerance and mechanical strength, enabling the magnetic inductor to handle higher powers and simplifying the mounting process while maintaining compactness.
Implementation Method 1
the elementary coils are power supplied by a polyphase current... In order to generate a magnetic field sliding along the main axis
Data Source
AI summary
A magnetic inductor for an electromagnetic pump, the magnetic inductor being intended for being supplied with a polyphase current containing at least two phases, the magnetic inductor comprising a magnetic inductor body and for each of the phases of the polyphase current, N pairs of elementary coils with the same winding direction following one another. The connection between the elementary coils associated with the phase is as follows: for each from the first to the N-th pair, each of the first and second elementary coils has one of the ends thereof connected to the end of the same type as the elementary coil of the same type that directly follows same.