Structure for manufacturing an induction coil, induction coil with such a structure and method of manufacturing such an induction coil

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Solution Overview

Problem

Existing induction coil manufacturing methods face challenges in easy storage, transport, and assembly, particularly due to the complexity and space requirements of spherical induction coils.

Innovation Solution

A structure comprising flat, flexible support arms with retaining brackets and slots allows for easy assembly and transportation of induction coils in a planar state, which can be bent into a spherical shape for use, enabling secure fastening and efficient winding of induction wire strands.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If induction coils are manufactured in spherical form, then the induction coil can be used for heating cooking vessels, but storage and transport become difficult and space-consuming

Engineering Contradiction:
Improveusability for heatingVSAvoidstorage and transport space
Core Design Contradiction:
Ease of operationVSVolume of moving object

Solution Approach 1:

The induction coil is divided into multiple flat support arms that can be separately folded and stored. Each support arm can be independently manipulated, allowing the entire structure to be collapsed into a compact form for transport while maintaining the spherical configuration for use.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The support arms are designed to be flexible and movable rather than rigidly fixed. This dynamic structure allows the induction coil to transition between a flat transport configuration and a spherical operational configuration, optimizing both storage efficiency and functional performance.

Inventive Principle:
Principle #15Dynamics

2Reliability

If induction coils are manufactured in spherical form, then the induction coil can function properly, but manufacturing complexity increases

Engineering Contradiction:
Improvefunctional performanceVSAvoidmanufacturing complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The support arms are pre-assembled in a flat configuration with connection points and retaining brackets already in place. This preliminary assembly simplifies the manufacturing process by avoiding the need to construct the spherical shape directly, while ensuring proper alignment and structural integrity for functional performance.

Inventive Principle:
Principle #10Preliminary action

3Strength

If retaining brackets are fixed rigidly to support arms, then the induction wire strand is securely held, but the structure becomes less flexible for assembly and transport

Engineering Contradiction:
Improvesecuring capabilityVSAvoidflexibility for assembly and transport
Core Design Contradiction:
StrengthVSAdaptability or versatility

Solution Approach 1:

The retaining brackets are designed with movable connections to the support arms, allowing them to adjust their position and orientation. This dynamic design enables the brackets to securely hold the induction wire strand in the operational configuration while allowing the support arms to be folded and manipulated during assembly and transport.

Inventive Principle:
Principle #15Dynamics

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 method simplifies the manufacturing and handling of induction coils by allowing for easy storage and transport in a flat state, reducing the complexity and space needed for spherical induction coils, while ensuring secure fastening and efficient heat distribution when mounted on a vessel.

Implementation Method 1

The support arms are flat and flexible such that they can be bent

Methodology Applied
Scientific EffectFlexibility: Elasticity

Data Source

PatentEP4492917A1Structure for manufacturing an induction coil, induction coil with such a structure and method of manufacturing such an induction coil
Publication Date: 2025.01.15 E G O ELEKTRO GERAETEBAU GMBH
  • EP4492917A1 patent drawingFigure 1~2
  • EP4492917A1 patent drawingFigure 3~4
  • EP4492917A1 patent drawingFigure 5~6

AI summary

A structure for manufacturing an induction coil comprises eight flat support arms being fixed to a central connecting part to which the support arms are fixed with an inner free end, their outer free ends being free. At least two elongate retaining brackets are provided on each support arm extending in their longitudinal direction. A plurality of retaining openings for the retaining brackets is provided on each support arm along its longitudinal direction. Each retaining bracket is fastened at its two ends with rivets in the retaining openings. One longitudinal slot is provided on each support arm along its longitudinal direction, wherein each retaining opening is connected to the corresponding longitudinal slot by means of a short connecting slot. The retaining brackets are held in a first fastening position as an assembly/transport position on the longitudinal slot, and can be retained in the retaining openings in a second fastening position as an end position, which end position is different from the first fastening position. This allows for a relative movement of the induction coil windings underneath the retaining brackets along the support arms.