Cooking Appliance Knob Bracket for Bias-Free Panel Alignment
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Solution Overview
Problem
The existing coupling structure of knob units to control panels in cooking appliances often results in assembly errors due to tolerances, leading to biased knob positions, which affects the appearance quality and operational functionality.
Innovation Solution
A cooking appliance design that incorporates a bracket system to fix the knob unit's position, including a knob coupling section and a valve coupling section, along with a flexible fixing member to prevent arbitrary direction bias and ensure proper alignment, thereby stabilizing the knob unit during assembly and use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a knob unit is directly coupled to a control panel without additional fixing structures, then the device complexity is reduced, but the knob unit becomes biased in an arbitrary direction due to tolerance accumulation, degrading appearance quality and operational reliability
Solution Approach 1:
A bracket is introduced as an intermediary component between the control panel and the knob unit. The bracket includes a control panel coupling section that attaches to the control panel and a knob coupling section that connects to the knob unit, serving as a mediator to absorb tolerance variations and prevent bias while maintaining a relatively simple overall structure
2Manufacturing precision
If a bracket coupling structure is added to fix the knob unit position, then the positioning stability and appearance quality are improved, but the device complexity increases due to additional components and assembly steps
Solution Approach 1:
The bracket acts as a positioning intermediary that incorporates tolerance compensation mechanisms. By distributing the coupling across two interfaces (control panel and knob unit) with potential clearance or elastic elements, the bracket achieves precise positioning without requiring extremely tight manufacturing tolerances on individual components
Solution Approach 2:
The coupling function is segmented into two separate coupling sections: a control panel coupling section and a knob coupling section. This segmentation allows each section to be optimized independently for its specific coupling requirements, improving overall positioning precision while keeping each individual coupling mechanism relatively simple
Data Source
AI summary
A cooking appliance having a coupling structure of components to a control panel. The cooking appliance includes a main body provided with a heating unit, a control panel on at least a portion of the main body, a coupled knob unit for controlling a condition of the heating unit, the knob unit coupled to the control panel, and a bracket coupled to the knob unit to fix a coupling position of the knob unit. Accordingly, during a manufacturing process or a use process, the knob unit can be prevented from being biased with respect to the control panel in an arbitrary one direction.