Control Panel Lever Coupling for Close Contact in Cooking Appliances
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Solution Overview
Problem
The existing control panels in cooking appliances are prone to malfunctions due to gaps forming between the panel and the body, allowing food materials to enter and cause malfunctions, which complicates maintenance and repair.
Innovation Solution
A coupling unit is introduced, comprising a first lever and a second lever that interlock to ensure the control panel comes into close contact with the body, using rotating shafts and driving force delivery parts to maintain adhesion and prevent exposure of the coupling portion, with a sealing member to eliminate gaps.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If the control panel is detachably provided at the body to facilitate maintenance and repair, then the ease of repair is improved, but a gap is formed between the control panel and the body allowing food material to enter and cause malfunction
Solution Approach 1:
The coupling unit is divided into multiple functional components: a first lever for receiving external force, a second lever for pressing the control panel, rotating shafts for motion conversion, and driving force delivery parts for transmitting force. This segmentation allows each component to perform its specific function while working together to achieve both detachability and sealing.
Solution Approach 2:
The coupling unit employs dynamic levers that can rotate and change position. The first lever rotates between a first position (spaced apart) and a second position (close contact), while the second lever dynamically presses the control panel toward the body during operation. This dynamic behavior enables the system to transition between detached and secured states.
2Ease of repair
If the control panel is detachably provided at the body to facilitate maintenance and repair, then the ease of repair is improved, but the adhesion of the control panel deteriorates
Solution Approach 1:
The coupling unit performs preliminary action by pressing the control panel toward the body through the second lever before normal operation begins. This preliminary pressing action ensures that the control panel is firmly adhered to the body, preventing gaps from forming during use while maintaining ease of detachment when needed.
Solution Approach 2:
The second lever acts as an intermediary between the first lever (which receives external force) and the control panel (which needs to be pressed). The second lever translates the motion of the first lever into a pressing force that enhances adhesion between the control panel and the body.
3Strength
If a coupling unit with levers and rotating shafts is introduced to ensure close contact, then the adhesion is improved, but the device complexity increases
Solution Approach 1:
The coupling unit merges multiple functions into a single integrated mechanism. The first lever, second lever, rotating shafts, and driving force delivery parts work together as one unified coupling system that simultaneously achieves close contact, prevents gaps, and maintains ease of operation, rather than using separate independent components for each function.
Solution Approach 2:
The coupling unit is designed as a multi-functional mechanism where the same set of components (levers, shafts, force delivery parts) performs multiple tasks: receiving external force, converting motion, pressing the control panel, and maintaining adhesion. This multi-functionality reduces the need for additional separate components.
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
This design enhances the adhesion of the control panel, improves its lifespan, and provides a sanitary cooking environment by preventing food from entering the gap and reducing the risk of malfunctions during cooking.
Implementation Method 1
a first lever rotatably provided at an inner side of the control panel and configured to receive an external force outside the control panel, and a second lever provided in between the control panel and the body to allow the control panel to come into close contact with the body while interlocked with an operation of the first lever
Implementation Method 2
the second lever may press the control panel toward the body while interlocked with the first lever
Data Source
AI summary
A cooking appliance including a body provided with a heating part, a control panel detachably provided at the body, and a coupling unit configured to allow the control panel to come into close contact with the body. The coupling unit includes a first lever rotatably provided at an inner side of the control panel and is configured to receive an external force outside the control panel. The coupling unit also includes a second lever provided in between the control panel and the body to allow the control panel to come into close contact with the body while interlocked with an operation of the first lever.