Operating device with a portable operating element having a rotation detection part movably arranged on an operating part
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Solution Overview
Problem
Existing cooking appliance control systems lack user-friendly and precise actuation options, with limited flexibility in setting operating conditions, and often require complex handling procedures.
Innovation Solution
A portable control element with a separate base unit and control panel that can be rotated and tilted, featuring a rotation detection part for precise positional detection, allowing for capacitive interaction with a detection unit to set operating conditions, and a resilient mounting system for automatic reset, enabling intuitive and precise actuation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a portable operating element with separate control part and base unit is used, then ease of operation is improved, but device complexity increases
Solution Approach 1:
The operating element is divided into a control part and a base unit that can be separated. The control part contains the operating element itself, while the base unit houses the detection unit. This segmentation allows the control part to be portable and easy to handle, while the detection functionality remains integrated in the appliance, thus improving ease of operation without excessively increasing overall device complexity.
Solution Approach 2:
A rotation detection part is introduced as an intermediary component that protrudes from the control part and interacts with the detection unit in the base unit. This intermediary enables precise detection of rotational position and tilt state through capacitive interaction, allowing complex detection functions to be achieved through a relatively simple mechanical-capacitive interface rather than complex internal sensors.
2Measurement precision
If rotation detection part protruding downwards is implemented, then measurement precision is improved, but ease of operation deteriorates
Solution Approach 1:
The rotation detection part is designed to be movable relative to the control part in the direction of the rotation axis. It can protrude downwards when the control part is in its basic position to enable precise capacitive detection, and it can be pressed upwards into the control part when tilting occurs. This dynamic adjustment allows the detection part to adapt its position based on the operational state, maintaining measurement precision while preventing interference with tilting operations.
Solution Approach 2:
The rotation detection part is positioned to protrude downwards in advance when the control part is in the basic position, enabling precise rotational detection before any tilting action occurs. This preliminary positioning ensures that the capacitive detection is already optimized for accurate measurement, while the design anticipates potential tilting by allowing the detection part to be pressed upward, thus preventing detection interference.
3Measurement precision
If multiple separate components are used for rotation and tilt detection, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The rotation detection part serves multiple functions: it enables detection of rotational position when protruding downwards, and it also enables detection of tilt state when pressed upwards into the control part. This multi-functional design allows a single component to perform what would otherwise require separate detection mechanisms, improving measurement precision while limiting the increase in device complexity to a manageable level.
Solution Approach 2:
The functions of rotation detection and tilt detection are merged into a single integrated system. The rotation detection part works in conjunction with the detection unit to provide both rotational position information and tilt state information through capacitive interaction. This merging of detection functions into a unified mechanism achieves high measurement precision without requiring entirely separate detection subsystems for each function.
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 experience with flexible and precise actuation options, allowing safe and accurate setting of operating conditions, while maintaining a compact design.
Implementation Method 1
a rotational position of the operating part relative to the operating element holder can be detected through interaction of the rotation detection part with a detection unit of the operating device
Implementation Method 2
the rotation detection part is designed, relative to a detection underside of the operating part when the operating element is placed on the operating element holder, in interaction with a detection unit of the operating device, additionally to detect a tilted position of the operating element
Data Source
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AI summary
The invention relates to a portable operating element (9) for an operating device (7) for a cooking appliance (1), which is designed to be non-destructively put on and taken off an operating element receptacle (8) of the operating device (7), and when put on, can be actuated to adjust operating conditions of the cooking appliance (1), wherein the operating element (9) has a base unit (15) and has an operating part (10) which is separate from the base unit (15) and which, when connected to the base unit (15), is put onto the base unit (15) and is an outer part of the operating element (9), and which is rotatable about an axis of rotation (A) of the operating element (9) in order to adjust at least one operating condition, wherein the operating element (9) has a rotation detection part (12) which is separate from the operating part (10) and from the base unit (15) and with which, when the operating element (9) is put on the operating element receptacle (8), a rotational position at least of the operating part (10) relative to the operating element receptacle (8) can be sensed in cooperation with a sensing unit (35) of the operating device (7), wherein the rotation detection part (12) is arranged to overhang downward with respect to a detection underside (13) of the operating part (10) which, when the operating element (9) is put on the operating element receptacle (8), is designed to sense a tilted position of the operating element (9) relative to the operating element receptacle (8) in cooperation with a sensing unit (35) of the operating device (9), and the rotation detection part (12), viewed in the direction of the axis of rotation (A), is mounted in the operating element (9) so as to be movable relative to the operating part (10). The invention also relates to an operating device (7).