Induction Heating Susceptor Plates for Baking Oven
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Solution Overview
Problem
Conventional baking ovens, whether gas-heated or electrically heated, have complex constructions and require significant infrastructure for heating, including combustion gases, pipelines, and electrical components, which complicate the baking process and increase energy consumption.
Innovation Solution
The introduction of a baking oven with susceptor plates that are inductively heated without contact, utilizing a broad magnetic field produced by elongated inductors arranged parallel to the circulation path, simplifying the oven construction and eliminating the need for combustion gases and electrical heating coils.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If gas-heated infrared radiators or gas flame burners are used to heat baking plates, then heating effectiveness is improved, but device complexity increases due to pipelines and combustion infrastructure
Solution Approach 1:
The patent replaces the mechanical combustion system (gas burners, pipelines, air inlet openings) with an electromagnetic induction heating system. The induction device generates a magnetic field that directly induces eddy currents in the susceptor plates, converting electromagnetic energy directly into heat without mechanical combustion components, thereby eliminating the complex gas supply infrastructure while maintaining effective heating.
Solution Approach 2:
The invention extracts and removes the complex combustion infrastructure (gas pipelines, burners, air inlet systems) from the baking oven, retaining only the essential heating function through induction heating. This extraction eliminates the harmful factors associated with combustion gases while preserving the thermal processing capability.
2Temperature
If electrical resistance heating coils are installed in baking plates with current collectors and busbars, then heating function is achieved, but device complexity increases
Solution Approach 1:
The patent replaces the electrical resistance heating system (heating coils, current collectors, busbars, spring mounting) with an electromagnetic induction system. The induction device creates a magnetic field that penetrates through the baking plates to induce eddy currents directly within the susceptor material, eliminating the need for embedded heating elements and complex electrical connections while achieving the same heating function.
Solution Approach 2:
The invention extracts the heating coils and electrical connection components from the baking plates, simplifying the plate structure. The susceptor plates become simpler components that only need to be electrically conductive, without embedded coils, current collectors, or spring mechanisms, thereby reducing device complexity while maintaining heating capability.
3Temperature
If gas burners are used for heating, then heating capability is improved, but energy consumption increases due to large air inlet openings for combustion air
Solution Approach 1:
The patent replaces the gas combustion system with an electromagnetic induction system that directly converts electrical energy into thermal energy within the susceptor plates. This eliminates the need for large volumes of combustion air and the associated energy losses from air heating and exhaust, significantly improving energy efficiency while maintaining effective heating capability.
4Area of stationary object
If multiple heating components are installed along the circulation path, then heating coverage is improved, but device complexity increases
Solution Approach 1:
The patent merges multiple discrete heating components into a single integrated induction device that spans the circulation path. The induction device generates a broad magnetic field that simultaneously heats multiple baking plates along the circulation path, consolidating what would have been multiple separate heating zones into one unified system, thereby maintaining heating coverage while reducing device complexity.
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 solution simplifies the baking oven design, reduces energy consumption, and enables efficient heating of multiple baking plates simultaneously, improving the production of various baked products without the complexities of traditional heating methods.
Implementation Method 1
at least one elongated inductor is provided, which is arranged parallel to the circulation path of the baking plates, extends along the circulation path over a plurality of baking plates and produces a large-area, broad magnetic field, which extends along the circulation path over a plurality of baking plates and simultaneously inductively heats a plurality of baking plates in the form of susceptor plates without any contact
Implementation Method 2
the baking plates are in the form of susceptor plates, which can be heated inductively without any contact
Data Source
AI summary
A baking oven for producing baked molded products. The baking oven has an input station, a baking area and an output station. In addition, the oven has baking plates, which are arranged along a circulation path passing through the baking area, and a conveying device for the baking plates. The baking plates are in the form of susceptor plates, which can be heated inductively without contact. An induction heating device is provided in the baking area. This device includes at least one elongated inductor, which is arranged parallel to the circulation path of the baking plates and extends along the circulation path over a plurality of susceptor plates. The elongated inductor produces a large-area, broad magnetic field, which simultaneously inductively heats a plurality of baking plates in the form of susceptor plates without any contact.