Industrial cooking appliance
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Solution Overview
Problem
Commercial cooking appliances require extensive manual effort and resources for cleaning, including chemical agents and high water usage, and existing automated systems are cumbersome, prone to wear, and inefficient in reaching all areas of the cooking chamber.
Innovation Solution
A commercial cooking appliance with a high-pressure cleaning device integrated into the lid, featuring a rotatable cleaning head and pressure hose system that supplies water under high pressure directly to the cooking chamber, eliminating the need for chemical agents and reducing manual effort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If a lance with cleaning head is attached to the rear wall of the cooking pot, then the cleaning device can supply high-pressure water to the cooking chamber, but the lance must be removed and stored during cooking, requiring additional installation space and obstructing the user
Solution Approach 1:
The cleaning head is mounted on the pivotable lid instead of a fixed lance, allowing it to dynamically enter or exit the cooking chamber as the lid opens or closes. This eliminates the need for manual removal and storage of the cleaning device during cooking operations.
Solution Approach 2:
The lid serves dual functions: it acts as both the closure for the cooking chamber during cooking and as the mounting structure for the cleaning head. This integration eliminates the need for separate storage space for the cleaning device.
2Manufacturing precision
If the lance is relatively long to position the cleaning head centrally in the cooking chamber, then effective cleaning coverage is improved, but wear and tear occurs at the coupling due to high forces from high pressure
Solution Approach 1:
The cleaning head is directly mounted on the lid structure, extracting it from the lance-based system. This eliminates the coupling connection point that was susceptible to wear from high-pressure forces, while maintaining central positioning for effective cleaning coverage.
3Device complexity
If the lance is attached to the rear wall, then the cleaning device can be integrated into the cooking appliance, but the coupling creates an additional connection point that requires proper sealing and is susceptible to wear
Solution Approach 1:
The cleaning head is mounted on the lid rather than being connected via a lance with coupling. This eliminates the additional connection point that required sealing, simplifying both manufacturing and maintenance while maintaining full integration of the cleaning function.
4Manufacturing precision
If manual cleaning is performed with chemical detergent and brushes, then thorough cleaning can be achieved, but large quantities of water and cleaning agent are consumed and significant time and effort are required
Solution Approach 1:
Manual mechanical cleaning with brushes and chemical detergents is replaced by an automated high-pressure water jet system. This substitution achieves thorough cleaning while significantly reducing water consumption and eliminating the need for chemical agents.
Solution Approach 2:
The cleaning system operates autonomously with the high-pressure water jet automatically removing food residues from the cooking chamber walls, eliminating the need for manual intervention while maintaining cleaning effectiveness.
5Extent of automation
If cleaning systems include spray nozzles with circulating cleaning fluid and filtering assemblies, then partial automation is achieved, but the design becomes more complex and expensive and does not eliminate manual cleaning
Solution Approach 1:
The cleaning system extracts only the essential high-pressure water jet function, eliminating unnecessary components such as circulating pumps, filtering assemblies, and reservoirs. This simplification achieves effective automation while reducing system complexity and cost.
Solution Approach 2:
The cleaning function is segmented into its core essential element (high-pressure water jet) rather than implementing a complete circulating system. This focused approach achieves sufficient automation without the complexity of fluid circulation and filtration systems.
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 system provides thorough, automated cleaning with reduced water consumption and effort, minimizing wear on components and ensuring all areas of the cooking chamber are effectively cleaned without the need for manual intervention or complex assembly.
Implementation Method 1
designed as a high-pressure device and is configured to supply a cleaning fluid, in particular water, into the cooking chamber under high pressure
Implementation Method 2
The cleaning head with at least one outlet opening for the cleaning fluid is rotatably mounted on the lid about a first axis of rotation by means of a bearing arrangement
Implementation Method 3
The lid is pivotally mounted on the housing by means of a swivel joint about a pivot axis in order to open and close the cooking chamber
Data Source
Figure 1~2
Figure 3~4
Figure 5a~5b
AI summary
A cooking appliance (2) according to the invention comprises a housing (8) with a cooking chamber (4), a lid (6) for closing the cooking chamber (4), and a high-pressure cleaning device (16) for cleaning the cooking chamber (4). The cleaning device (16) comprises a cleaning head (18) which is rotatably mounted on the lid (6) by means of a bearing arrangement (26). The cooking appliance (2) comprises a pressure hose (32) which is connected to the bearing arrangement (26), and a hose passage (34) between the lid (6) and the housing (8), wherein the pressure hose (32) extends in the lid (6) from the bearing arrangement (26) to the hose passage (34) and through the hose passage (34) into the housing (8).