Cooking Cavity Rear Layout for Larger Oven Space and Component Cooling

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Solution Overview

Problem

Conventional cooking apparatuses have limited cooking cavity height and width due to the placement of components, and there is a need for efficient use of rear space to accommodate heating elements and cooling systems effectively.

Innovation Solution

The cooking apparatus utilizes a rack or plate instead of a turntable, allowing for increased height and width by placing components like a magnetron, high voltage transformer, and convection heater assembly at the rear, with a cooling fan positioned to create an effective cooling flow path, enhancing the use of rear space for expanded cavity dimensions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of stationary object

If components are placed at one side or upper side of the cooking cavity, then the cooking cavity height is maintained, but the cooking cavity width and rear space utilization are limited

Engineering Contradiction:
Improvecooking cavity areaVSAvoidcomponent arrangement complexity
Core Design Contradiction:
Area of stationary objectVSDevice complexity

Solution Approach 1:

The patent relocates components from traditional side/upper positions to the rear space of the cooking cavity, utilizing the depth dimension that was previously underutilized. This dimensional shift allows the cooking cavity width and height to be maximized while components are accommodated in the rear depth space, effectively resolving the spatial conflict between component placement and cooking cavity dimensions.

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

2Area of stationary object

If components are installed at the rear space, then the cooking cavity width and height are expanded, but the cooling of components becomes more difficult

Engineering Contradiction:
Improvecooking cavity areaVSAvoidcomponent temperature
Core Design Contradiction:
Area of stationary objectVSTemperature

Solution Approach 1:

The patent introduces a cooling fan as an intermediary device positioned in the rear space to actively manage heat dissipation. The cooling fan creates a forced convection current that draws air through the cooking cavity and across the components in the rear space, providing effective cooling without requiring additional space beyond the rear compartment. This mediator enables both expanded cooking cavity dimensions and adequate component cooling.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Productivity

If a turntable is used in the cooking cavity, then the cooking process is enhanced, but the cooking cavity height and width are restricted

Engineering Contradiction:
Improvecooking efficiencyVSAvoidcooking cavity area
Core Design Contradiction:
ProductivityVSArea of stationary object

Solution Approach 1:

The patent extracts the turntable mechanism from the cooking cavity and relocates it to the rear space among the other components. This extraction removes the spatial constraint that the turntable imposed on the cooking cavity dimensions, allowing the cavity width and height to be maximized. The turntable function is preserved in the rear space, maintaining cooking efficiency while eliminating the dimensional restriction.

Inventive Principle:
Principle #2Taking out (Extraction)

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 configuration allows for efficient use of rear space, effective cooling of components, and adjustment of cooking cavity dimensions, providing a larger cooking area while ensuring effective cooling and heating.

Implementation Method 1

a cooling fan positioned to create an effective cooling flow path

Methodology Applied
Scientific EffectForced Convection: Forced Convection

Implementation Method 2

a cooking apparatus that uses a magnetron

Methodology Applied
Scientific EffectMicrowave Radiation: Microwave Radiation

Implementation Method 3

convection heater assembly

Methodology Applied
Scientific EffectConvection: Convection

Data Source

PatentEP2237642B1Cooking apparatus
Publication Date: 2015.06.24 LG ELECTRONICS INC
  • EP2237642B1 patent drawingFigure 1
  • EP2237642B1 patent drawingFigure 2~3
  • EP2237642B1 patent drawingFigure 4

AI summary

The present invention relates to a cooking apparatus, comprising a cooking cavity (100), and a component room located at the rear side of the cooking cavity (100) provided with a plurality of components used for a cooking process in the cooking cavity, a rear frame (160) provided at the rear side of the cooking cavity (100), an external case (310) connected to the rear frame (160) so as to encompass the top and both sides of the cooking cavity (100), and a cover (410) connected to the rear frame (160) or the external case (310) to define the component room behind the cooking cavity (100).