Cooking Appliance Heating Coils with Insulating Intermediate Element
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Solution Overview
Problem
Existing cooking appliances lack flexibility and efficiency in heating, with existing heating coil designs not effectively addressing issues of heat resistance, insulation, and cost-effectiveness.
Innovation Solution
A cooking appliance with at least two heating coils and an intermediate element, featuring a connecting recess for direct or indirect connection, designed to ensure insulation and efficient heat transfer, using flat inductors with closely arranged windings and a compact, space-saving configuration, and made from materials like mica for enhanced heat resistance and flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If heating coils are arranged close together to save space, then area utilization is improved, but insulation between coils deteriorates
Solution Approach 1:
An intermediate element is introduced between the heating coils to serve as a mediator. This element provides both mechanical support and electrical insulation, allowing coils to be arranged close together while maintaining proper insulation. The intermediate element acts as a bridge that enables close spacing without compromising safety or performance.
Solution Approach 2:
The intermediate element is made from composite materials that combine electrical insulation properties with mechanical strength and heat resistance. This allows the component to simultaneously provide insulation between coils while withstanding the thermal and mechanical demands of the heating element assembly.
2Productivity
If flat inductors with closely arranged windings are used, then heating efficiency is improved, but manufacturing complexity increases
Solution Approach 1:
The heating system is segmented into modular components: flat inductors with closely arranged windings are manufactured as separate units, then assembled onto the intermediate element. This segmentation allows for specialized manufacturing of high-efficiency flat inductors using automated winding processes, while the intermediate element provides a standardized mounting platform, overall reducing assembly complexity.
Solution Approach 2:
The design utilizes parameter changes in the winding configuration of flat inductors, where the number of turns, wire diameter, and spacing are optimized to achieve high heating efficiency. These parameter optimizations are achieved through standardized manufacturing processes that can be scaled, balancing complexity with performance.
3Volume of moving object
If intermediate element is made thin for compact design, then space saving is improved, but mechanical strength deteriorates
Solution Approach 1:
The intermediate element employs composite materials that deliver high mechanical strength-to-thickness ratios. These materials maintain structural integrity and support for heating coils while keeping the element thin for compact appliance design. The composite structure provides both the necessary strength and electrical insulation properties.
Solution Approach 2:
The intermediate element features local quality variations, with reinforced areas positioned specifically under heating coil mounting points to provide enhanced mechanical strength where needed. The bulk of the element remains thin for space saving, while localized reinforcements ensure structural adequacy.
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 solution provides improved heating efficiency, heat resistance, and cost-effectiveness by ensuring efficient insulation and flexible coil arrangement, enhancing the overall performance and longevity of the cooking appliance.
Implementation Method 1
The invention is based on a cooking appliance device, in particular an oven device and advantageously an induction oven device, with at least two heating coils, in particular a first heating coil and a second heating coil
Implementation Method 2
The heating coil is advantageously designed as an induction heating element
Implementation Method 3
The intermediate element is designed as an insulating element and consists at least partially, preferably at least to a large extent, and particularly preferably completely of an electrically insulating material
Data Source
AI summary
The invention proceeds from a cooking appliance apparatus comprising at least two heating coils (22a; 22b; 22c; 24a; 24b; 24c; 26b; 26c; 28b; 28c) and comprising at least one intermediate element (30a; 30b; 30c, 32c, 34c) which is arranged at least partially between the heating coils (22a; 22b; 22c; 24a; 24b; 24c; 26b; 26c; 28b; 28c). In order to provide a cooking appliance apparatus of the generic type with improved properties in respect of flexibility, it is proposed that the intermediate element (30a; 30b; 30c, 32c, 34c) has at least one connecting recess (36a; 36b; 36c; 38b; 38c, 40c) which is provided for connecting the heating coils (22a; 22b; 22c; 24a; 24b; 24c; 26b; 26c; 28b; 28c).