Heating Cooker Transformer Layout for Reduced Rear Depth

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Solution Overview

Problem

Existing heating cookers face challenges in further shortening the depth dimension of the back portion of the main body due to interference between the partition wall and electric components, making it difficult to optimize space utilization.

Innovation Solution

The arrangement of electric components, such as the high-voltage transformer, is optimized by incorporating a projecting portion that extends beyond the end of the heating and cooking chamber, allowing for a closer alignment with the housing, thereby reducing the overall depth of the heating cooker.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Length of stationary object

If the depth dimension of the back portion is shortened by combining arrangement position and orientation of electric components, then the overall depth of the heating cooker is reduced, but the partition wall may interfere with the electric components

Engineering Contradiction:
Improvedepth dimension of back portionVSAvoidarrangement of electric components
Core Design Contradiction:
Length of stationary objectVSEase of operation

Solution Approach 1:

The electric component is designed with a projecting portion that extends in the depth direction beyond the end of the heating and cooking chamber. This dimensional arrangement allows the main body of the electric component to be positioned in the width direction between the vertical outer wall and the vertical wall, while the projecting portion accommodates the space constraint, effectively resolving the interference issue between the partition wall and electric components.

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

2Length of stationary object

If the depth dimension of the back portion is further shortened, then the heating cooker becomes more compact, but it becomes difficult to arrange electric components without interference from the partition wall

Engineering Contradiction:
Improvedepth dimension of back portionVSAvoidarrangement of electric components
Core Design Contradiction:
Length of stationary objectVSDevice complexity

Solution Approach 1:

The electric component is segmented into a main body portion and a projecting portion. The main body portion is arranged in the width direction between the vertical outer wall and the vertical wall, while the projecting portion extends in the depth direction beyond the end of the heating and cooking chamber. This segmentation allows the electric component to fit within the constrained depth dimension while avoiding interference with the partition wall.

Inventive Principle:
Principle #1Segmentation

3Length of stationary object

If the electric component is positioned closer to the housing, then the overall depth is reduced, but the partition wall interferes with the electric component

Engineering Contradiction:
Improvedistance between rear wall and housingVSAvoidpositioning of electric component
Core Design Contradiction:
Length of stationary objectVSEase of operation

Solution Approach 1:

The electric component utilizes both the width direction (for the main body portion between the vertical outer wall and vertical wall) and the depth direction (for the projecting portion extending beyond the heating and cooking chamber end) to achieve compact positioning without interference from the partition wall.

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

Data Source

PatentEP4651626A1Heating cooker
Publication Date: 2025.11.19 SHARP KK
  • EP4651626A1 patent drawingFigure 1
  • EP4651626A1 patent drawingFigure 2
  • EP4651626A1 patent drawingFigure 3

AI summary

A heating and cooking chamber, a housing, and a high-voltage transformer are provided. The heating and cooking chamber heats an object to be heated. The housing accommodates the heating and cooking chamber. The high-voltage transformer is arranged between the heating and cooking chamber and the housing. The heating and cooking chamber has a rear wall intersecting a horizontal direction. The housing has a vertical outer wall facing the rear wall. The high-voltage transformer includes a main body portion and a projecting portion. The main body portion is arranged between a rear outer wall and the rear wall. The projecting portion projects from the main body portion in a second direction from the rear outer wall toward the rear wall. At least a part of the projecting portion is located further in the second direction than an end portion in a direction opposite to the second direction of the heating and cooking chamber.