Sliding Cooking Plate Structure for Oil-Free Flame Heating
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Solution Overview
Problem
Existing wireless cooking appliances with boiling oil are not suitable for use in public places due to safety concerns, as they pose a risk with the presence of hot oil.
Innovation Solution
A cordless cooking appliance with two cooking plates, a U-shaped frame, and a sliding upper plate that allows for flame heating, guiding hot air to the cooking plates, enabling safe cooking of dishes like sandwiches and panini, with non-stick coatings and pivoting parts for adaptability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If wireless cooking appliances use boiling oil for cooking, then cooking function is achieved, but safety risk increases making it unsuitable for public places
Solution Approach 1:
The patent extracts the harmful boiling oil from the cooking system and replaces it with solid cooking plates. The cooking function is maintained through direct contact with heated plates rather than immersion in boiling oil, eliminating the safety hazard while preserving the cooking capability.
Solution Approach 2:
The patent changes the physical state parameter of the cooking medium from liquid (boiling oil) to solid (cooking plates). This parameter change transforms the cooking method from oil-based heating to direct plate heating, reducing safety risks while maintaining cooking effectiveness.
2Productivity
If flame heating means are used for cooking plates, then cooking efficiency improves, but control difficulty increases
Solution Approach 1:
The patent introduces cooking plates as an intermediary between the flame heating source and the food. The plates absorb and distribute heat uniformly, mediating the intense flame heat into controlled surface heat, thereby maintaining cooking efficiency while improving controllability and safety.
Solution Approach 2:
The patent segments the heating system into distinct components: flame source, cooking plates, and food. This segmentation allows independent control and optimization of each component, with the plates serving as a controllable interface between the flame and food, balancing efficiency and ease of operation.
3Temperature
If upper cooking plate is positioned close to lower cooking plate, then cooking temperature increases, but access to food becomes difficult
Solution Approach 1:
The patent makes the upper cooking plate dynamically movable between a closed position (for optimal cooking temperature and contact) and an open position (for easy food access). This dynamic positioning allows the system to switch between cooking and serving modes, resolving the contradiction between temperature maintenance and accessibility.
Solution Approach 2:
The patent designs the upper plate to be movable, allowing users to open it before cooking to place food, close it during cooking to maintain temperature, and open it again for serving. This preliminary design of movable access resolves the contradiction by enabling sequential operations without compromising either temperature or accessibility.
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 design allows for safe and versatile cooking in public places by controlling the heating and air flow, ensuring effective temperature rise for various dishes while maintaining safety and ease of use.
Implementation Method 1
The lower cooking plate is held apart from the core (5) of the U to provide, between the lower cooking plate (3) and the core (5), a free space (6) inside which are adapted to be arranged means (20) for heating by flame of said lower cooking plate (3)
Implementation Method 2
each forming a wall deflector adapted to guide the hot air from the heating means in the direction of the upper cooking plate and/or of the cooking enclosure formed by the space between the lower and upper cooking plates
Data Source
AI summary
The invention relates to a cooking appliance (1) with a frame (4) supporting two cooking plates, respectively referred to as upper (2) and lower (3) plates, for cooking food, by sandwiching between said plates (2, 3). The frame (4) includes at least one generally U-shaped portion with the core (5) of the U of the frame (4) arranging with the lower cooking plate (3) a free space (6) inside of which means (20) for heating said plate (3) by a flame can be arranged, and the upper cooking plate (2) is mounted slidingly movable relative to the lower cooking plate (3) and is provided, along each of the side edges thereof facing an open surface of the U of the frame (4), with a raised edge (7) arranged opposite a so-called longitudinal edge (8) of the lower cooking plate (3) in the close position of said plates (2, 3).