Magnetic Rotary Control Knob for Contaminant-Resistant Appliance Operation
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Solution Overview
Problem
Existing household appliance control devices, such as those for cooktops, are limited in functionality and user-friendliness, with traditional magnetic controls offering restricted operational capabilities and vulnerability to contaminants.
Innovation Solution
A control device with a detachable and rotatable operating element comprising a base and cap connected via a ball bearing, allowing precise positioning and movement, enhanced by a touch-sensitive panel and stainless steel construction for improved functionality, safety, and visual displays.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a traditional single-component control element is used, then the structure is simple, but the functionality and user-friendliness are limited
Solution Approach 1:
The control element is divided into two separate components: a control element base and a control element cap. The base remains attached to the operating surface while the cap can be detached and repositioned, allowing different operating modes (rotational control when attached, touch control when detached) and enhancing overall functionality without significantly complicating the structure.
2Adaptability or versatility
If the control element is completely detachable, then flexibility is improved, but positioning precision and reliability deteriorate
Solution Approach 1:
The control element cap is designed to be dynamically repositionable around the control element base, allowing the user to attach it at different angular positions. This dynamic positioning capability provides flexibility in operation while maintaining precise control when attached, and the magnetic connection ensures reliable holding at any position.
3Ease of operation
If the control element components are exposed, then accessibility is improved, but vulnerability to contaminants increases
Solution Approach 1:
The control element cap acts as a protective shell that covers the control element base and its connection interface. When attached, the cap creates a protective barrier against contaminants like dust and liquid while still allowing the user to grip and rotate the control element through the cap's outer surface, maintaining accessibility while providing protection.
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 enhances user-friendliness and functionality by enabling precise control settings, protecting against contaminants, and providing advanced safety features through magnetic holding, touch-sensitive controls, and visual feedback, while maintaining a compact and lightweight design.
Implementation Method 1
an operating element which can be held on an operating surface of the household appliance by means of magnetic force and can be moved relative to the operating surface and positioned detachably from there
Data Source
Figure 1~2
AI summary
The operating device (8) has an operating element (10) which is movably received in operating element receptacle (9) of a household appliance (1) by magnetic force. The operating element has an operating element base (11) and top covering operating element cap (12) which is connected to the operating element base and is rotatable relative to the operating element base.