Cooking Lid Venting Structure for Moisture-Safe Baking Modes
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Solution Overview
Problem
Pressure baking cookers with shared venting passages face issues where moisture from regular cooking modes can affect electrical components inside the lid, leading to potential damage and reduced reliability.
Innovation Solution
A cooking appliance design featuring a lid with a venting passage and a blocking member that adjusts to block unused venting holes, allowing for different cooking modes while preventing moisture from entering the lid, enhancing the reliability and longevity of electrical components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a shared venting passage with multiple through holes is used, then the cooking appliance can perform both baking mode and regular cooking mode, but moisture from regular cooking mode enters the lid through the venting passage and damages electrical components
Solution Approach 1:
The blocking member is designed to be movable within the venting passage, dynamically switching between blocking and unblocking positions. During regular cooking mode, the blocking member blocks the venting passage to prevent moisture from reaching electrical components. During baking mode, the blocking member moves to allow air circulation through the venting passage, thus resolving the contradiction between versatility and reliability
Solution Approach 2:
The venting passage is segmented into multiple through holes, and a blocking member is introduced to selectively control each segment. This segmentation allows the system to maintain multiple cooking modes while protecting electrical components by blocking only the necessary passages during specific modes, thus achieving both versatility and reliability
2Productivity
If the venting passage remains open during regular cooking mode, then moisture is vented effectively, but steam enters unused through holes and wets electrical components in the lid
Solution Approach 1:
The harmful factor (moisture/steam) is extracted from the system by introducing a blocking member that selectively closes the venting passage during regular cooking mode. This prevents steam from entering unused through holes and damaging electrical components, while still allowing effective venting when needed by controlling the blocking member's position
Solution Approach 2:
The blocking member acts as an intermediary element between the venting passage and the electrical components. It mediates the flow of moisture by blocking the passage during regular cooking mode, preventing direct contact between steam and electrical components, thus protecting them while maintaining venting functionality when required
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 effectively manages air intake and moisture, improving the reliability and service life of electrical components within the lid by allowing for versatile cooking modes without exposing them to harmful humidity or high temperatures.
Implementation Method 1
the blocking member sliding downwards to a bottom of the venting passage when the inner cap is detached
Data Source
AI summary
A cooking appliance comprises a lid (1), an appliance body and an inner cap (3), the lid (1) being arranged on the appliance body in a manner capable of opening and closing the appliance body, the appliance body comprising a heating structure, and the lid (1) comprising: a lid body (4); a baking assembly (5) arranged below the lid body (4), the lid body (4) being provided with a venting passage (6) through which the inside of the cooking appliance communicates with the exterior, the inner cap (3) being detachably mounted to the lid body (4) and located below the baking assembly (5), a lateral wall of the venting passage (6) being provided with a venting hole; a blocking member (27) slidably arranged in the venting passage (6), the blocking member (27) sliding downwards to a bottom of the venting passage (6) when the inner cap (3) is detached, and the blocking member (27) blocking the venting hole when the blocking member (27) is located at a top or a bottom of the venting passage (6). The cooking appliance solves the problem that electrical components inside the lid (1) of a cooking appliance in the prior art are susceptible to moisture.