Pizza Oven Magnetic Interface for Low-Cost Mode Switching

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Solution Overview

Problem

Existing pizza cooking appliances require complex and expensive circuitry or are not user-friendly when switching between different cooking modes.

Innovation Solution

A cooking appliance with a control hub and interface that allows users to switch between modes by manipulating dials and using a magnetic interface, where a sensor detects the magnetic field to change modes, eliminating the need for a separate switch and providing a user-friendly interface.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If complex circuitry is used to switch between cooking modes, then mode switching capability is improved, but device complexity and cost increase

Engineering Contradiction:
Improvecooking mode switching capabilityVSAvoidcircuitry complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent replaces complex electrical circuitry with a magnetic field-based detection system. A magnet attached to the rotating dial physically indicates the selected cooking mode by aligning with corresponding openings in the control panel, which are detected by optical sensors. This mechanical-magnetic system eliminates the need for complex electrical switching circuitry while maintaining multiple cooking mode functionality.

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

2Adaptability or versatility

If complex circuitry is used to switch between cooking modes, then mode switching capability is improved, but manufacturing cost increases

Engineering Contradiction:
Improvecooking mode switching capabilityVSAvoidmanufacturing cost
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The patent employs inexpensive components such as simple magnets, plastic rotating dials with cutouts, and basic optical sensors instead of expensive electronic switching circuitry. These low-cost components achieve the same functionality of multiple cooking mode selection, significantly reducing manufacturing costs while maintaining adaptability.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

3Ease of operation

If traditional switching mechanisms are used, then reliability is maintained, but ease of operation decreases

Engineering Contradiction:
Improveuser-friendliness of mode switchingVSAvoidswitching mechanism reliability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The rotating dial with magnet automatically indicates the selected cooking mode through its physical position and magnetic field orientation. The system self-regulates by using the dial's mechanical position to trigger the corresponding mode detection, eliminating the need for complex user interactions or unreliable mechanical switches while maintaining high reliability through simple, robust components.

Inventive Principle:
Principle #25Self-service

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, cost-effective, and user-friendly switching between cooking modes, allowing for precise control of heating profiles and cooking settings.

Implementation Method 1

the interface is magnetically attracted to the front face so as to be removably mounted thereon

Methodology Applied
Scientific EffectMagnetic attraction: Magnetism

Implementation Method 2

the sensor being configured to detect a magnetic field of the interface and to switch the controller from the first mode to the second mode upon the sensor detecting the magnetic field of the interface

Methodology Applied
Scientific EffectMagnetic field detection: Hall Effect

Data Source

PatentEP3914863B1Cooking appliance
Publication Date: 2024.03.20 BREVILLE HLDG PTY LTD
  • EP3914863B1 patent drawingFigure 1
  • EP3914863B1 patent drawingFigure 2
  • EP3914863B1 patent drawingFigure 3

AI summary

A cooking appliance (10) including: a body (12) with a front face; at least one projection (24, 26, 28) extending from the front face, and that is manipulated by a user to control the appliance (10); and an interface (30) releasably mounted on the front face adjacent the projection (24, 26, 28), the interface (30) being mountable in a first orientation or a second orientation, with the orientation to be selected by the user when mounting the interface (30) on the front face.