Cooking Hob Extraction Control for Adaptive Fan Speed
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Solution Overview
Problem
Existing combination appliances with integrated cooking hobs and suction hoods lack user-friendly control over extraction device parameters, such as fan speed and suction capacity, which can lead to inefficient cooking experiences.
Innovation Solution
A combination appliance with a cooking hob and integrated extraction device featuring a control module that adjusts fan operation parameters based on cooking hob settings and sensor data, allowing for customizable fan control through a user interface, including voice commands, and an illumination system indicating fan operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the extraction device is integrated into the cooking hob with fixed control, then the device complexity is reduced and manufacturing is easier, but the ease of operation deteriorates because users cannot adjust extraction parameters to match cooking conditions
Solution Approach 1:
The extraction device transitions from a static, fixed-control system to a dynamic, adjustable system. The control module allows users to modify extraction parameters (fan speed, suction capacity) in real-time based on cooking conditions, making the device adaptive rather than fixed. This resolves the contradiction by enabling operational flexibility without permanently increasing structural complexity.
Solution Approach 2:
The invention changes the operational parameters of the extraction device (fan speed, power level, suction capacity) from fixed to variable. The control module enables users to adjust these parameters according to different cooking scenarios, transforming the extraction device into a configurable system that adapts to varying cooking requirements while maintaining a relatively simple overall structure.
2Productivity
If the extraction device operates at high power to ensure effective smoke removal, then the productivity of smoke extraction is improved, but the use of energy increases and cooking experience deteriorates due to excessive noise and air flow
Solution Approach 1:
The extraction device uses dynamic power adjustment rather than continuous high-power operation. The control module enables the fan to operate at variable speeds, allowing high extraction power only when needed (during intensive cooking) and reducing power during lighter cooking tasks. This resolves the contradiction by making productivity adjustable rather than fixed at maximum levels.
Solution Approach 2:
The extraction device employs periodic or intermittent high-power operation rather than continuous maximum power. The control module allows users to activate high extraction power only during specific cooking phases when smoke generation is intense, and reduce power during quieter cooking periods, optimizing the balance between extraction effectiveness and energy consumption.
3Productivity
If the extraction device operates at high power to ensure effective smoke removal, then the productivity of smoke extraction is improved, but the object-affected harmful factors increase due to excessive noise and strong air flow affecting the cooking environment
Solution Approach 1:
The extraction device uses dynamic power adjustment to match extraction intensity with actual cooking needs. The control module enables the fan to operate at high power only when smoke generation is intense, and reduces power during lighter cooking tasks, thereby minimizing noise and strong air flow effects on the cooking environment while maintaining effective smoke removal when needed.
4Productivity
If multiple fans are used to increase extraction capacity, then the productivity of smoke extraction is improved, but the device complexity increases and control becomes more difficult
Solution Approach 1:
The control module serves multiple functions: it controls fan speed, monitors cooking conditions via sensors, adjusts extraction power levels, and provides user interface management. This multi-functional control system manages multiple fans through a single integrated unit, resolving the contradiction by consolidating control complexity into one universal control mechanism rather than separate controls for each fan.
Solution Approach 2:
The system uses sensor feedback to automatically adjust the operation of multiple fans. Sensors detect cooking conditions (smoke levels, heat intensity) and provide feedback to the control module, which then adjusts fan speeds and power distribution accordingly. This feedback mechanism simplifies control of multiple fans by making the system self-regulating rather than requiring manual control of each individual fan.
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
Enhances user convenience by dynamically controlling extraction device parameters to match cooking conditions, improving cooking performance and user experience through intelligent control and feedback mechanisms.
Implementation Method 1
at least one fan for sucking the air above the cooking hob through the recess of the support surface
Data Source
Figure 1~3
Figure 4~5
Figure 6~7
AI summary
A combination appliance (1) comprising a cooking hob (2), which comprises at least one support surface (4) and at least one therein formed recess (11), and at least one extraction device (3), which is arranged below the support surface (4) of the cooking hob (2) and comprises at least one fan (15) for sucking air from the space above the cooking hob (2) through the recess (11) of the support surface (4), and at least one lid (20) for the recess (11) , wherein:at least one control module (28), comprising at least one extraction control (18) that controls at least one operation parameter of the extraction device (3) ,at least one hob control (6) that controls at least one operation parameter of the cooking hob (2), and at least one interface unit (29) that is at least connected to the extraction control (18) and to the hob control (6), and wherein the interface unit (29) is capable of sending signals to the extraction control (18),wherein the extraction control (18) is controlling the extraction device (3) in response to the signals received from the interface unit (29).