Heat accumulator oven
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Solution Overview
Problem
Existing heat storage cookers rely on electrical connections for operation, limiting their functionality and autonomy, especially in non-electrical heating scenarios.
Innovation Solution
A heat storage cooker with a thermal generator that converts thermal energy from a heat source into electrical energy, allowing for autonomous operation and additional comfort features like electronic control and energy storage, independent of an electrical connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a thermal generator is integrated into the heat storage cooker to generate electrical energy from thermal energy, then autonomy and functionality are improved, but device complexity increases
Solution Approach 1:
The patent combines the thermal generator directly with the heat storage cooker structure, merging the electrical energy generation function into the existing thermal system. The thermal generator is positioned to utilize the temperature difference between the heat source and ambient environment, integrating power generation without requiring separate autonomous systems.
Solution Approach 2:
The heat storage cooker is designed to serve multiple functions: traditional cooking/heating, electrical energy generation through the thermal generator, and charging energy storage devices. This multi-functionality allows the single device to provide both thermal and electrical services, improving autonomy while sharing common structural components.
2Ease of operation
If electrical functional units are added to provide comfort functions, then ease of operation is improved, but energy consumption increases
Solution Approach 1:
The system generates its own electrical energy through the thermal generator powered by the heat source, eliminating the need for external electrical connections. The energy produced by the thermal generator is used to power the electronic control unit, display, and other electrical functional units, creating a self-sufficient system where the cooker serves its own energy needs.
Solution Approach 2:
The system utilizes the temperature difference parameter between the heat source and ambient environment as the driving force for electrical energy generation. By changing from a passive thermal system to an active thermoelectric generation system, the cooker converts waste heat into useful electrical energy, offsetting the energy consumption of added electrical functions.
3Productivity
If an energy store is integrated to store generated electrical energy, then productivity is improved, but device complexity increases
Solution Approach 1:
The energy storage device is integrated within the heat storage cooker structure, with the thermal generator, energy store, and control units nested within the existing housing. This nested arrangement allows multiple functional components to occupy space efficiently within the cooker's overall structure, adding functionality while minimizing external dimensional increases.
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
Enables the generation of electrical energy for operating comfort functions and energy storage, even in non-electrical heating systems, enhancing autonomy and efficiency by utilizing thermal energy conversion and storage.
Implementation Method 1
a thermal generator (24) which is heated by the heat source (22) or into which thermal energy is introduced on the hot side, from which the thermal energy is taken or derived on the cold side and with which electrical energy is generated from it in a manner known per se
Data Source
Figure 1~2
AI summary
A heat storage cooker has at least one heat source and a thermal generator with a hot side and a cold side for generating electrical energy during operation of the heat source to supply an electrical functional unit, in particular an electronic controller, of the heat storage cooker with electrical energy. The hot side is provided close to the heat source with good thermal coupling to it, and the cold side is routed to the environment, to an oven muffle or to a hotplate of the heat storage cooker. In this way, an electronic control system can also be operated in the case of a heat storage stove without an electrical connection.