Extractor Hood Filter Element with Wireless Power and Data Transfer
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Solution Overview
Problem
Existing extractor hoods face a trade-off between maximizing filter surface area and incorporating additional functions like illumination and sensor usage, as lighting screens reduce the available filter area.
Innovation Solution
Integration of components for additional functions, such as lighting and sensors, within a detachable filter element using an inductive transmission device that transfers energy and data wirelessly, eliminating the need for mechanical contacts and allowing for a larger filter surface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If lighting panels are integrated into the extractor hood to provide illumination, then the additional function of illumination is achieved, but the filter surface area is reduced
Solution Approach 1:
The patent extracts the lighting function from the fixed hood structure and relocates it to the removable filter element. This allows the lighting panel to be integrated with the filter element rather than occupying space in the fixed housing, thereby maintaining maximum filter surface area while providing illumination functionality.
Solution Approach 2:
The lighting panel is nested within the filter element structure. The light sources and control electronics are integrated into the filter element itself, allowing the filter element to serve dual purposes: filtration and illumination, without requiring additional space in the hood housing.
2Adaptability or versatility
If electrical components are integrated into the filter element to enable additional functions, then functionality is enhanced, but mechanical contacts increase complexity and maintenance needs
Solution Approach 1:
The patent replaces mechanical contact systems (plug connectors, sliding contacts) with wireless power and data transmission technology. The filter element communicates with the hood control unit via wireless signals, eliminating the need for physical electrical connections and reducing mechanical complexity while enabling multiple functions.
Solution Approach 2:
The patent introduces wireless electromagnetic fields as an intermediary medium to transfer power and data between the hood and the removable filter element. This intermediary approach eliminates direct mechanical contact while enabling functional integration.
3Ease of repair
If the filter element is made detachable for easy cleaning and replacement, then ease of maintenance is improved, but electrical connection reliability may deteriorate
Solution Approach 1:
By replacing mechanical electrical contacts with wireless power and data transmission, the patent eliminates the reliability issues associated with removable mechanical connectors. The wireless connection maintains reliable communication and power supply without requiring physical contact, thus preserving connection reliability while maintaining ease of filter element replacement.
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 enhances the filter surface area while enabling the extractor hood to perform multiple functions safely and efficiently, with improved user safety and reduced maintenance needs, as the filter element can be easily replaced and cleaned.
Implementation Method 1
the cooker hood has an inductive transmission device and the filter element has at least one electrical load, a primary coil of the transmission device is arranged on the housing of the cooker hood and a secondary coil on the filter element
Data Source
Figure 1
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Figure 3
AI summary
The present invention relates to a cooker hood comprising a housing (11) and at least one filter element (13) detachably attached to the housing (11). The cooker hood (1) is characterized in that the cooker hood (1) has an inductive transmission device (14) and the filter element (13) has at least one electrical load, a primary coil (141) of the transmission device (14) is arranged on the housing (11) of the cooker hood (1) and a secondary coil (143) is arranged on the filter element (13), and the secondary coil (143) is connected to the at least one electrical load.