Cooking vessel comprising a sensor support

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Solution Overview

Problem

Existing cooking vessels with integrated sensors face operational issues due to manufacturing tolerances, leading to stress on the sensor and conducting elements, which can impair their functionality and lead to damage or breakage.

Innovation Solution

Incorporating a support with a programmed deformation area, such as an S-shaped design, to accommodate position tolerances between the sensor and handle-mounting means, allowing for mobility and reducing harmful stresses on sensitive components, while using austenitic non-ferromagnetic stainless steel for the support to withstand high temperatures and avoid induction heating interference.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If the sensor and handle-mounting means are rigidly connected through the support, then the mounting structure provides stability and strength, but manufacturing tolerances cause stress accumulation that impairs sensor operation and can damage components

Engineering Contradiction:
Improvemounting structure strengthVSAvoidsensor operation reliability
Core Design Contradiction:
StrengthVSReliability

Solution Approach 1:

The support structure's rigidity parameter is changed by introducing a programmed deformation area with different mechanical properties. This area allows controlled deformation to accommodate position tolerances while maintaining overall structural strength, preventing stress accumulation that would impair sensor operation.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The support structure transitions from a completely rigid design to a dynamic design with a programmed deformation area that can adapt its shape. This dynamic area absorbs dimensional variations from manufacturing tolerances through elastic deformation, maintaining reliable sensor operation while preserving mounting structure strength.

Inventive Principle:
Principle #15Dynamics

2Stability of the object's composition

If the support is made rigid to ensure structural stability, then the mounting means remain stable, but expansion differentials generate additional stresses that can break the support or damage conducting elements

Engineering Contradiction:
Improvemounting means stabilityVSAvoidstress from expansion differentials
Core Design Contradiction:
Stability of the object's compositionVSObject-affected harmful factors

Solution Approach 1:

The support structure's rigidity parameter is changed by introducing a programmed deformation area with different mechanical properties. This area allows controlled deformation to accommodate position tolerances while maintaining overall structural strength, preventing stress accumulation that would impair sensor operation.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The support structure transitions from a completely rigid design to a dynamic design with a programmed deformation area that can adapt its shape. This dynamic area absorbs dimensional variations from manufacturing tolerances through elastic deformation, maintaining reliable sensor operation while preserving mounting structure strength.

Inventive Principle:
Principle #15Dynamics

3Manufacturing precision

If the sensor housing is tightly fitted to ensure precise sensor positioning, then the sensor remains securely mounted, but combined with handle mounting tolerances this creates stress concentrations that impair sensor functionality

Engineering Contradiction:
Improvesensor positioning precisionVSAvoidsensor functionality
Core Design Contradiction:
Manufacturing precisionVSReliability

Solution Approach 1:

The programmed deformation area acts as a pre-designed cushioning element that anticipates and absorbs the cumulative effect of manufacturing tolerances. By incorporating this compliant area beforehand, the structure prevents stress concentrations from developing at the sensor housing interface, maintaining both precise positioning and sensor functionality.

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

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 ensures reliable, repeatable, and long-lasting operation of the sensor, maintaining the cooking vessel's functionalities while being simple in design and economical, with the S-shaped support providing necessary mobility and the metal material ensuring durability and compatibility with induction heating.

Implementation Method 1

at least one programmed deformation area to allow mobility in at least one direction between the retaining part for the sensor and the conducting element and the handle

Methodology Applied
Scientific EffectElastic deformation: Elasticity

Implementation Method 2

using austenitic non-ferromagnetic stainless steel for the support to withstand high temperatures and avoid induction heating interference

Methodology Applied
Scientific EffectThermal resistance: Thermal Insulation

Implementation Method 3

austenitic non-ferromagnetic stainless steel for the support to withstand high temperatures and avoid induction heating interference

Methodology Applied
Scientific EffectNon-ferromagnetic property: Diamagnetism

Data Source

PatentUS10455982B2Cooking vessel comprising a sensor support
Publication Date: 2019.10.29 SEB SA
  • US10455982B2 patent drawing
  • US10455982B2 patent drawing
  • US10455982B2 patent drawing

AI summary

Provided is a cooking vessel (1) including a body (2) equipped with a bottom (3) and a lateral wall (4), a handle (20) mounted to the body (2) by mounting means (6, 22), and a sensor (30) disposed in a receiving housing (11) near the bottom (3) and equipped with at least one electrically insulated conducting element (31, 32), said sensor (30) and said conducting element (31, 32) being mounted to a support (40) which extends from the bottom (3) along the lateral wall (4) and which is mounted to the handle (20). The support (40) includes a retaining part (42) for the sensor and the conducting element and at least one programmed deformation area (50, 55a, 55b) to allow mobility between the retaining part (42) for the sensor and the conducting element and the handle (20) in at least one direction.