Cooking Appliance Linear Touch Controls for Power and Program Selection
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Solution Overview
Problem
Household cooking appliances lack enhanced user-friendliness and functionality in their control units, with existing interfaces often being complex and difficult to navigate, especially when setting parameters for heating zones.
Innovation Solution
A control unit with touch-sensitive switching elements arranged in a straight line, accompanied by visual indicators and a selection button, allowing users to easily assign power levels to heating zones and activate special cooking programs, with light elements providing feedback on actuation and functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a traditional user interface with multiple separate controls is used, then comprehensive functionality is achieved, but the interface becomes complex and difficult to navigate
Solution Approach 1:
The control element is designed as a universal interface that can perform multiple functions: it serves as both a continuous slider for power level adjustment and a discrete button array for activating special cooking programs. By integrating these functions into a single control structure with multiple switching elements, the interface achieves versatility without increasing complexity.
Solution Approach 2:
The control element dynamically changes its function based on activation state. When the selection button is activated, the switching elements transition from representing continuous power levels to representing discrete special cooking programs. This dynamic reconfiguration allows the same physical interface to adapt to different operational modes, resolving the contradiction between functionality and complexity.
2Adaptability or versatility
If multiple separate controls are provided for different functions, then comprehensive control is achieved, but ease of operation decreases due to navigation complexity
Solution Approach 1:
The patent merges the power level selection function and special program selection function into a single control element. The switching elements serve dual purposes: they represent power levels in normal mode and special programs when the selection button is activated. This consolidation reduces the number of separate controls users must navigate, significantly improving ease of operation while maintaining comprehensive control capability.
Solution Approach 2:
The selection button enables preliminary action by allowing users to pre-select a special cooking program before adjusting power levels. The control element is designed to accept program selection first, then power level adjustment, creating a logical sequence that simplifies the overall operation process and makes the interface more intuitive.
3Measurement precision
If discrete buttons are used for each function, then precise control is achieved, but the interface becomes cluttered and less user-friendly
Solution Approach 1:
The control element is segmented into multiple switching elements arranged in a structured pattern, where each segment represents a specific function. This segmentation allows precise control over individual functions (power levels or special programs) while maintaining a compact, organized layout that avoids clutter. The systematic arrangement of segments provides clarity and ease of use.
Solution Approach 2:
The patent transitions from a one-dimensional slider concept to a two-dimensional array of switching elements. This dimensional change allows the interface to encode multiple functions (power levels and special programs) within a compact grid structure, achieving precise control without requiring extensive horizontal or vertical space, thus avoiding a cluttered appearance.
Data Source
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AI summary
The present invention relates to a control unit for a household appliance, in particular for a cooking appliance (1). The control unit comprises at least one input/output device (UI) for the entry of control commands and for the visualisation of information, particularly status information, and at least one control element (S1, S2, S3, S4) comprising a plurality of touch-sensitive switching elements positioned in a straight-lined arrangement. At least a part of the input/output device (UI) is touch-sensitive and/or formed as a touch screen. The control element (S1, S2, S3, S4) is adapted to assign a power level to an electrical load depending on the activated switching element. At least one first special function, in particular a first special operating program, is assignable to at least a first one of the plurality of switching elements. The input/output device (UI) further comprises at least one selection button (13, 15), which is adapted to provide the selection of the at least one first special function. The invention also relates to a cooking appliance comprising said control unit and a method for controlling a household appliance.