Oven Imaging Device Thermal Management for Multi-Angle Monitoring

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Solution Overview

Problem

Users of kitchen appliances like ovens often need to open the door to view contents from angles not visible through the transparent window, which can disrupt the cooking process by altering the oven's temperature and affecting cooking quality.

Innovation Solution

An oven with a camera mounted within the cooking cavity's walls, insulated and cooled by a thermal management system, allowing real-time monitoring of contents through a display without opening the door, and equipped with a heat sink and auxiliary fan for effective heat dissipation and vibration control.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of information

If a transparent window is provided on the oven door for viewing contents, then users can monitor cooking progress, but only one view angle is available and users must open the door to see other sides

Engineering Contradiction:
Improveviewing angleVSAvoiddoor opening frequency
Core Design Contradiction:
Loss of informationVSEase of operation

Solution Approach 1:

The patent transitions from a single 2D window view to a 360-degree omnidirectional viewing system using multiple image sensors positioned at different angles within the cooking cavity, enabling users to view contents from all directions without opening the door

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

2Loss of information

If the door is opened to view contents from different angles, then complete visual inspection is possible, but temperature drops and cooking quality is affected

Engineering Contradiction:
Improvevisual inspection completenessVSAvoidcooking cavity temperature
Core Design Contradiction:
Loss of informationVSTemperature

Solution Approach 1:

The patent uses image sensors to create visual copies of the contents from multiple angles, replacing the need for physical door opening and direct visual inspection, thereby maintaining temperature while providing complete visual information

Inventive Principle:
Principle #26Copying

3Loss of information

If an imaging device is mounted within the cooking cavity to enable multi-angle viewing, then complete visual monitoring is achieved, but the imaging device is exposed to high temperatures

Engineering Contradiction:
Improveviewing coverageVSAvoidthermal exposure
Core Design Contradiction:
Loss of informationVSObject-affected harmful factors

Solution Approach 1:

The patent divides the imaging system into multiple separate image sensors positioned at different locations and angles within the cooking cavity, with each sensor capturing a specific view angle, collectively providing complete 360-degree coverage while distributing thermal exposure across multiple components

Inventive Principle:
Principle #1Segmentation

4Loss of information

If multiple image sensors are positioned at different angles within the cooking cavity, then complete visual monitoring is enabled, but device complexity increases

Engineering Contradiction:
Improveviewing coverageVSAvoidimaging system complexity
Core Design Contradiction:
Loss of informationVSDevice complexity

Solution Approach 1:

The patent employs a universal imaging architecture where multiple image sensors follow the same design specifications and mounting patterns, allowing them to be controlled and processed through a single unified system interface, thereby managing complexity while achieving multi-angle coverage

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

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 users to monitor cooking progress without temperature fluctuations, ensuring consistent cooking quality and providing clear, unblurred images of contents from various angles without opening the oven door.

Implementation Method 1

insulation located in the channel

Methodology Applied
Scientific EffectThermal insulation: Thermal Insulation

Implementation Method 2

an imaging device mounted in the channel in thermal engagement with the insulation

Methodology Applied
Scientific EffectThermal conduction: Conduction (thermal)

Data Source

PatentEP3477209B1Oven having an imaging device
Publication Date: 2020.04.08 WHIRLPOOL CORP
  • EP3477209B1 patent drawingFigure 1
  • EP3477209B1 patent drawingFigure 2
  • EP3477209B1 patent drawingFigure 3

AI summary

An oven (10) can include an oven body (12, 112) having a peripheral wall (14, 114) at least partially defining a cooking cavity (32, 132) with a top wall (16, 116) comprising spaced interior panels (18, 118) and exterior panels (20, 120) defining a channel (22, 122) therebetween. Furthermore, the oven can include insulation (23) located in the channel (22, 122) and an imaging device (40, 140) with a field of view (42, 142) including at least a portion of the cooking cavity (32, 132).