Pressure Cooker Mode Indication via Crown Position Sensing
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Solution Overview
Problem
Existing domestic pressure cookers lack ergonomic and clear user interfaces, making it difficult for users to determine the instantaneous position of the pressure selection crown, which can lead to incorrect operation and potential safety risks, especially for uninformed users or those with visual deficiencies.
Innovation Solution
A domestic cooking appliance with a control member that is manually movable between distinct positions, each easily identifiable by icons, and an information device connected to emit signals characteristic of these positions, ensuring the user is informed of the selected mode through visual and/or auditory cues, preventing accidental pressure cooker operation without proper selection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If all pictograms are permanently displayed on the plate, then the user can see all possible positions, but the user cannot quickly determine the instantaneous position of the pressure selection crown
Solution Approach 1:
The invention extracts only the relevant information (current position indication) from the complete set of pictograms. Instead of displaying all positions simultaneously, the system selectively presents only the pictogram corresponding to the current crown position, eliminating visual clutter and enabling immediate position recognition.
Solution Approach 2:
The invention uses luminous or illuminated pictograms that can be activated or deactivated based on the current crown position. This dynamic visual indication method allows the relevant pictogram to stand out from others, enabling users to quickly identify the current position without being confused by other possible positions.
2Ease of operation
If a window system is used to display the current position pictogram, then the user can easily identify the selected mode, but the device complexity and manufacturing cost increase
Solution Approach 1:
The pressure selection crown serves multiple functions: it mechanically controls the pressure regulating valve and simultaneously drives the information display mechanism through the same rotational movement. This multi-functionality eliminates the need for separate detection mechanisms, reducing overall device complexity while maintaining clear position indication.
Solution Approach 2:
The invention replaces complex electronic or optical detection systems with a simple mechanical coupling between the crown and the display mechanism. The crown's rotational position directly controls which pictogram is displayed through mechanical linkages, providing a reliable and cost-effective solution without requiring sophisticated electronics.
3Ease of manufacture
If the mark and pictograms are produced by simple forming without additional coloring, then the manufacturing process is simple and durable, but the visual distinction between positions is difficult
Solution Approach 1:
The invention applies luminous or illuminated characteristics to the pictograms and marks, transforming them from passive visual elements to active, dynamically controllable indicators. This allows the relevant pictogram to be visually distinguished through light emission or illumination, solving the problem of poor visual contrast while maintaining simple material composition.
Solution Approach 2:
The invention transforms the static visual display into a dynamic system where the visibility and luminosity of pictograms change based on the crown position. This dynamic indication method provides clear visual feedback without requiring complex coloring processes, as the distinction is achieved through temporal and luminous variations rather than material complexity.
Data Source
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AI summary
The invention relates to a household cooking appliance including at least one first control member (9) movable between a plurality of positions and designed to enable a user to operate said device, as well as an information device (60) connected to said first control member (9) for transmitting a signal characteristic of at least one predetermined position of said first control member (9), characterised in that said information device (60) and said first control member (9) are connected, so as to transmit said signal, by means of at least one sensor (10, 11, 12) and at least one actuator (13) designed to remotely energise said sensor (10, 11, 12) when the first control member (9) is in said first predetermined position. The invention can be used for food cooking appliances.