Magnetic Induction Heating Coil Layout for Uniform Composite Heating
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Solution Overview
Problem
Existing heating devices cause uneven heating of composite materials, leading to imperfect molding.
Innovation Solution
A magnetic field heating coil with a first coil part and symmetrically tilted second and third coil parts, arranged to uniformly heat the composite material by inductive heating.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a coil conductor is placed substantially concentrically on a heating surface of the coil support member, then the heating device structure is simple, but the composite material is heated unevenly
Solution Approach 1:
The coil conductor is divided into multiple independent coil parts (first coil part, second coil parts, third coil parts) with different orientations and positions. Each coil part generates a magnetic field component that contributes to uniform heating, resolving the contradiction by transforming a single complex arrangement into multiple simpler segmented components.
Solution Approach 2:
Different coil parts are positioned and oriented to address specific heating requirements in different regions of the composite material. The first coil part extends in the width direction, second coil parts are tilted to address depth direction heating, and third coil parts extend in the depth direction, creating locally optimized heating zones that collectively achieve uniform heating.
2Device complexity
If the coil conductor is placed concentrically, then the device structure is simple, but the molding quality deteriorates due to uneven heating
Solution Approach 1:
The coil support member is designed with multiple support portions (first, second, and third support portions) that independently hold different coil parts. This segmentation allows each coil part to be optimally positioned for its specific heating function while maintaining overall structural simplicity through modular support design.
Solution Approach 2:
The second coil parts are tilted at a predetermined angle relative to the width direction, breaking the symmetric concentric arrangement. This asymmetric positioning of specific coil parts creates non-uniform magnetic field distribution that compensates for heating deficiencies in specific regions, thereby improving overall heating uniformity and molding quality.
3Device complexity
If a single coil conductor is used, then the device is simple, but the heating coverage and uniformity are insufficient
Solution Approach 1:
The heating coil configuration transitions from a two-dimensional concentric arrangement to a three-dimensional multi-directional structure. Coil parts extend in different directions (width direction, depth direction, and tilted orientations) to cover and heat the composite material uniformly across multiple spatial dimensions, significantly expanding effective heating coverage.
Solution Approach 2:
Multiple coil parts with different orientations and positions are merged into a single integrated heating system. The magnetic fields generated by each coil part combine synergistically to provide comprehensive and uniform heating coverage across the entire composite material surface, achieving greater effective area than any single coil could provide alone.
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
Ensures uniform heating of the composite material, improving the molding process by reducing temperature unevenness.
Implementation Method 1
a magnetic field heating coil 22 that inductively heats a composite material 20 by a magnetic field
Implementation Method 2
a magnetic field heating coil 22 that inductively heats a composite material 20 by a magnetic field
Data Source
AI summary
A heating device includes a magnetic field heating coil that inductively heats a composite material by a magnetic field. The composite material has a length in a depth direction and a length in a width direction orthogonal to the depth direction. The magnetic field heating coil has a first coil part provided along the width direction, and a pair of second coil parts provided on both sides of the first coil part in the width direction so as to be continuous with the first coil part, the second coil parts being tilted a predetermined angle θ to one side in the depth direction with respect to the width direction. The first coil part and the second coil parts are symmetric with respect to a line segment drawn in the depth direction at a center of the first coil part in the width direction.