Removable Lid-Mounted Heating Device for Grilling and Easy Cleaning
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Solution Overview
Problem
Conventional electric cooking appliances lack the ability to grill food and have difficult-to-clean heating devices.
Innovation Solution
An electric cooking appliance with a removably mounted heating device on the lid, allowing for grilling and easy cleaning, and an optional heating element in the housing for conduction cooking, along with a control mechanism for selecting cooking modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a heating device is mounted on the inner surface of the lid to enable grilling, then grilling capability is improved, but cleaning difficulty increases
Solution Approach 1:
The heating device is segmented from the lid structure, allowing it to be removed independently for cleaning. The heating element and its support structure form a separable module that can be detached from the lid, enabling easy access to both the heating device and the lid surface for thorough cleaning.
Solution Approach 2:
The mounting arrangement transitions from a fixed state during operation to a removable state during cleaning. The heating device can be dynamically repositioned between mounted and detached states, allowing it to be securely fixed during grilling operations but easily removed for cleaning purposes.
2Adaptability or versatility
If a heating element is arranged in the housing to heat the cooking vessel, then conduction cooking capability is improved, but device complexity increases
Solution Approach 1:
The heating element in the housing serves multiple cooking functions. It can heat the cooking vessel for conduction cooking, and when combined with the removable heating device on the lid, enables both conduction and grilling capabilities within a single appliance, reducing the need for separate devices.
Solution Approach 2:
The patent combines two heating systems into one appliance: a fixed heating element in the housing for conduction cooking and a removable heating device on the lid for grilling. This merging of heating functions allows versatile cooking capabilities while sharing common structural and control elements.
3Stability of the object's composition
If the heating device is fixed to the lid, then structural stability is improved, but ease of cleaning deteriorates
Solution Approach 1:
The heating device is extracted from the permanent fixed structure, allowing it to be removed from the lid for cleaning. The mounting mechanism provides stable attachment during use but enables complete removal when cleaning is required, separating the operational stability requirement from the cleaning accessibility requirement.
Solution Approach 2:
The mounting system provides dynamic characteristics, being stable and secure during cooking operations but easily removable for cleaning. The connection mechanism allows the heating device to transition between a firmly mounted state that ensures stability and a detached state that enables cleaning access.
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
Enables quick grilling with minimal fat, easy cleaning of the heating device, and versatile cooking options including grilling, conduction, and pressure cooking.
Implementation Method 1
a heating element which is arranged in the housing and which is configured to heat the cooking vessel by conduction and convection
Implementation Method 2
a heating element which is arranged in the housing and which is configured to heat the cooking vessel by conduction and convection
Implementation Method 3
the heating element advantageously being formed by a resistive heating element
Implementation Method 4
a heating device which is mounted on an inner surface of the lid, the heating device comprising a heating member configured to be located opposite the food to be cooked and to heat said food to cook it
Data Source
AI summary
An electric cooking appliance includes a housing having a cooking vessel configured to receive food to be cooked; a lid pivotably mounted on the housing between an open position in which the lid frees access to the cooking vessel and a closed position in which the lid prevents access to the cooking vessel; and a heating device which is removably mounted on an inner surface of the lid, the heating device having a heating device configured to be located opposite the food to be cooked received in the cooking vessel and for heating said food to be cooked when the lid is in the closed position.