Waffle maker

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Solution Overview

Problem

Conventional electric waffle makers lack user control over cooking parameters, ease of cleaning, and versatility, leading to inconsistent cooking results and complex cleaning processes.

Innovation Solution

A waffle maker with a microprocessor-controlled system that includes a user interface with temperature and time adjustments, a large moat for batter overflow, and a tilt sensor for precise cooking, along with a design that facilitates easy cleaning and storage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If conventional electric waffle makers are used, then basic waffle cooking is achieved, but user control over cooking parameters is limited and cleaning is difficult

Engineering Contradiction:
Improveuser control over cooking parametersVSAvoiddevice structure
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The waffle maker incorporates adjustable cooking parameters including temperature control (multiple heat settings) and time control (adjustable cooking duration), allowing users to dynamically adapt the cooking process to different batter types and preferences. The device features a microprocessor-controlled system with sensors that monitor cooking conditions and allow real-time parameter adjustment.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The cooking chamber is divided into distinct functional zones with independent control. The housing is segmented into removable components (lid, base, moat sections) that can be separated for easy cleaning. The heating elements are positioned in specific zones to create different temperature gradients across the cooking surface.

Inventive Principle:
Principle #1Segmentation

2Ease of manufacture

If conventional waffle makers are used, then waffles can be cooked, but cleaning the device is complex and time-consuming

Engineering Contradiction:
Improveease of cleaningVSAvoidcleaning time
Core Design Contradiction:
Ease of manufactureVSLoss of time

Solution Approach 1:

The lid is designed to be completely removable from the base, allowing users to extract and clean separate components. The moat (batter containment channel) is designed as a removable or easily accessible component that can be taken out for thorough cleaning without disassembling the entire device.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The moat is designed with specific local characteristics including smooth surfaces and rounded corners that prevent batter adhesion. Non-stick coating is applied to specific areas where batter contact occurs most frequently, making those locations easier to clean while maintaining overall structural integrity.

Inventive Principle:
Principle #3Local quality

3Manufacturing precision

If precise cooking control is implemented, then consistent cooking results are achieved, but device complexity increases

Engineering Contradiction:
Improvecooking consistencyVSAvoidcontrol system complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The waffle maker incorporates temperature sensors and timing mechanisms that continuously monitor cooking conditions. The microprocessor receives feedback from these sensors and automatically adjusts heating elements and cooking duration to maintain optimal cooking parameters, ensuring consistent results across multiple batches.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The control system is designed to automatically perform measurements and adjustments without requiring manual intervention. The device self-regulates temperature and timing based on pre-programmed parameters and sensor feedback, eliminating the need for complex manual calibration while maintaining precision.

Inventive Principle:
Principle #25Self-service

4Reliability

If a large moat for batter overflow is added, then batter containment is improved, but device volume increases

Engineering Contradiction:
Improvebatter containmentVSAvoiddevice volume
Core Design Contradiction:
ReliabilityVSVolume of stationary object

Solution Approach 1:

The moat is designed as a nested structure that integrates within the existing housing contours. The batter containment channel follows the perimeter of the cooking chamber and nestles into the housing structure, utilizing available space efficiently without requiring significant additional volume.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The moat utilizes the vertical dimension by incorporating depth variations in the housing structure. Rather than expanding the device footprint horizontally, the batter containment channel uses vertical space through strategically placed ridges and channels that direct overflow into designated collection areas.

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

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 waffle maker provides users with precise control over cooking parameters, ensuring consistent results, ease of cleaning, and versatility in cooking different types of waffles, while the moat and ergonomic design enhance usability and maintenance.

Implementation Method 1

a cooking plate (110) having a heating element (201) associated therewith

Methodology Applied
Scientific EffectJoule heating: Joule Heating

Implementation Method 2

a tilt sensor (203) for detecting a tilt angle of the waffle maker

Methodology Applied
Scientific EffectTilt sensor detection: Accelerometer

Data Source

PatentEP2892404B1Waffle maker
Publication Date: 2021.03.31 BREVILLE HLDG PTY LTD
  • EP2892404B1 patent drawingFigure 1
  • EP2892404B1 patent drawingFigure 2
  • EP2892404B1 patent drawingFigure 3

AI summary

A food cooking appliance such as a waffle maker, pizza maker or toaster uses a combination of sensor inputs and optional user preferences to determine an optimal cooking time.