Knob assembly with a display device and appliance having the same
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Complex cooking appliances with multiple heat sources and timers often have a cluttered front surface due to numerous knobs and switches, making it difficult for users to intuitively recognize the function of each component, leading to decreased convenience and a compromised appearance.
Innovation Solution
A knob assembly with a rotating knob and independently rotating knob ring, featuring magnetic sensing technology using Hall sensors to detect position changes without contact, which simplifies the user interface by integrating heating power and timer controls into a unified, aesthetically pleasing design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple knobs and switches are installed on the front surface to control heating power and timer functions, then the appliance can perform multiple cooking functions, but the front surface becomes cluttered and appearance is compromised
Solution Approach 1:
The patent combines the heating power control knob and timer control knob into a single integrated knob assembly. The first knob controls heating power while the second knob (knob ring) controls timer functions, both sharing a common structure and mounting location. This merging reduces the number of separate components on the front surface while maintaining multiple cooking functions.
Solution Approach 2:
The integrated knob assembly serves multiple functions: the first knob provides heating power control, the second knob provides timer control, and together they enable both open-type and closed-type cooking operations. This multi-functional design eliminates the need for separate dedicated controls for each function.
2Ease of operation
If multiple separate knobs and manipulation switches are installed to control various functions, then each function can be precisely controlled, but the number of components and assembly processes increases
Solution Approach 1:
The patent merges multiple control functions into a single integrated knob assembly that includes a first knob for heating power control and a second knob (knob ring) for timer control. This integration reduces the number of separate components and simplifies assembly processes while maintaining precise control over each function through dedicated control elements within the unified structure.
3Adaptability or versatility
If numerous knobs and switches are installed on the front surface, then comprehensive control functions are available, but user intuition for recognizing each component's function decreases
Solution Approach 1:
The patent segments the control functions by providing distinct visual and tactile elements: a first knob for heating power control and a second knob (knob ring) for timer control. Each knob can be differentiated by position, shape, or labeling, allowing users to intuitively recognize which component controls which function while maintaining comprehensive control capabilities.
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
The solution reduces the number of components and assembly processes, enhances user convenience by clearly displaying heating power and timer settings, and improves the appliance's appearance by consolidating controls while maintaining precise operation.
Implementation Method 1
a first rotation sensing part configured to sense rotation of the adjusting shaft, and a first sensing target that is configured to rotate based on rotation of the adjusting shaft. A position of the first sensing target changes based on rotation of the first sensing target, and the first rotation sensing part is further configured to sense at least one of the position of the first sensing target or a change of the position of the first sensing target.
Data Source
AI summary
A knob assembly includes a knob located at a front panel of the knob assembly and configured to rotate about an axis, a knob ring that is located at the front panel, that surrounds the knob, and that rotates about the axis independently of rotation of the knob, an adjusting shaft that extends from the knob through the knob ring in a direction rearward of the front panel and that rotates based on rotation of the knob and causes operation of a device, a first rotation sensing part that senses rotation of the adjusting shaft, and a first sensing target that rotates based on rotation of the adjusting shaft. A position of the first sensing target changes based on rotation of the first sensing target, and the first rotation sensing part senses at least one of the position or a change of the position of the first sensing target.