Display Knob Ring Assembly for Power and Timer Control
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Solution Overview
Problem
In composite cooking apparatuses, users face difficulty in distinguishing between knobs for adjusting power levels and timer times, leading to confusion and inconvenient operation, especially when separate displays are not necessary.
Innovation Solution
A knob assembly with a rotatable knob ring that supports the adjustment shaft, featuring a display to show power levels and timer times, where the knob ring can be independently manipulated to set timer times and display information, with color differentiation for easy recognition, and a returning type structure to maintain user convenience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If separate displays are provided for power level and timer time, then information display completeness is improved, but device complexity increases
Solution Approach 1:
The patent combines the power level display and timer time display into a single display unit located on the knob ring. This merging of display functions reduces the number of separate display components needed while maintaining complete information display, directly resolving the contradiction between information completeness and device complexity.
Solution Approach 2:
The knob ring serves multiple functions: it acts as a structural support for the adjustment shaft, provides a display surface for both power level and timer time information, and functions as an independent rotatable control for timer adjustment. This multi-functionality eliminates the need for separate displays and controls, reducing overall device complexity.
2Measurement precision
If separate controls are provided for power level and timer time, then control precision is improved, but ease of operation deteriorates
Solution Approach 1:
The control system is segmented into two independent control mechanisms: the knob handle for power level adjustment and the independently rotatable knob ring for timer time adjustment. This segmentation allows each control to be optimized for its specific function while maintaining ease of operation, as users can intuitively distinguish between the two controls based on their location and function.
Solution Approach 2:
Different parts of the knob assembly have different functions: the knob handle is optimized for power level control, while the knob ring is optimized for timer time control and information display. This local differentiation of quality and function makes it easy for users to understand and operate each control element appropriately.
3Adaptability or versatility
If multiple separate controls and displays are provided, then functionality is improved, but manufacturing cost increases
Solution Approach 1:
The patent merges multiple functions into the knob ring structure: support for the adjustment shaft, display surface for both power level and timer time, and independent rotatable control for timer adjustment. This consolidation reduces the number of separate components that need to be manufactured and assembled, thereby reducing manufacturing costs while maintaining full functionality.
Solution Approach 2:
The knob ring is designed as a universal component that performs multiple functions simultaneously, eliminating the need for separate displays and controls. This multi-functionality reduces the total component count and simplifies the manufacturing process while preserving all necessary controls and display capabilities.
Data Source
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AI summary
A knob assembly with a display that displays information such as power level and a timer time, and a cooking apparatus including a knob assembly are provided. The knob assembly includes a knob coupled to an adjustment shaft configured to adjust power level and a knob ring configured to surround a periphery of the knob, configured to be rotatable independent of the knob, wherein the knob is coupled to the adjustment shaft and the knob ring supports the adjustment shaft at two or more points thereof.