Slow Cooker with Movable Heating Element for Searing and Slow Cooking

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Solution Overview

Problem

Conventional searing slow cookers require two distinct heating elements, which complicates the cooking process and increases complexity, whereas a simplified solution with a single heating element and improved user interface is needed to enhance performance and usability.

Innovation Solution

An electric slow cooker with a removable cooking vessel and a single heating plate that moves between searing and slow cooking positions, utilizing a motor or manual adjustment, and a cylindrical flow path for hot air circulation, allowing for efficient heat distribution and mode switching between searing and slow cooking.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If two distinct heating elements are used for searing and slow cooking, then both functions can be performed, but the device complexity increases

Engineering Contradiction:
Improvecooking function versatilityVSAvoidheating element quantity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The single heating element is designed to perform both searing and slow cooking functions by changing its position. In the upper position, it enables high-temperature searing, and in the lower position, it provides gentle slow cooking heat, making one component serve multiple purposes

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The heating element is made movable between two distinct positions (upper for searing, lower for slow cooking) rather than being fixed. This dynamic positioning allows the same heating element to deliver different cooking functions at different spatial locations, resolving the contradiction between versatility and complexity

Inventive Principle:
Principle #15Dynamics

2Device complexity

If a single heating element is used for both searing and slow cooking, then device complexity is reduced, but the ability to perform both functions effectively may be compromised

Engineering Contradiction:
Improveheating element quantityVSAvoidcooking function versatility
Core Design Contradiction:
Device complexityVSAdaptability or versatility

Solution Approach 1:

The solution adds the spatial dimension (vertical position) to differentiate cooking functions. Instead of using multiple heating elements in the same space, the single element moves between upper and lower positions, utilizing spatial separation to achieve functional differentiation while maintaining hardware simplicity

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Device complexity

If the heating plate is manually adjusted between positions, then device complexity is reduced, but ease of operation decreases

Engineering Contradiction:
Improveadjustment mechanism complexityVSAvoidheating plate adjustment
Core Design Contradiction:
Device complexityVSEase of operation

Solution Approach 1:

The manual mechanical adjustment system is replaced with an automated motor-driven system. The motor automatically positions the heating element between upper and lower positions based on cooking mode selection, eliminating the need for manual intervention and improving ease of operation while maintaining simple overall device architecture

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

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 simplifies the searing process, reduces complexity, and improves performance by using a single heating element for both functions, while maintaining efficient heat distribution and user control through intuitive interface options.

Implementation Method 1

a single heating element located below a removable cooking vessel

Methodology Applied
Scientific EffectThermal conduction: Conduction (thermal)

Implementation Method 2

the side walls of the cooking vessel and the interior side walls of the base that supports the cooking vessel define a generally cylindrical flow path or chamber for hot air

Methodology Applied
Scientific EffectConvection: Convection

Data Source

PatentEP3468427B1Slow cooker
Publication Date: 2024.05.01 BREVILLE HLDG PTY LTD
  • EP3468427B1 patent drawingFigure 1
  • EP3468427B1 patent drawingFigure 2
  • EP3468427B1 patent drawingFigure 3

AI summary

A slow cooking appliance device. The device including: a body having a base, the body receives within it a removable cooking vessel; a movable heating element supported by the base; and a lift mechanism within the base for raising and lowering the movable heating element, such that the heating element is movable between an upper position and a lowered position.