Oven Door Panel Structure for Covered Interior Corners

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Solution Overview

Problem

Conventional oven doors with metal front panels have exposed edges at interior corners, which can be hazardous and detract from the aesthetic appearance, as caps are often used for safety but compromise design.

Innovation Solution

The door design features a door panel with bent portions that contact the door frame, covering exposed edges with a top panel and side panels, and optionally using ribs for additional support, ensuring that only certain corners are exposed and reducing sharpness.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If caps are provided at interior corners to cover exposed edges, then user safety is improved, but aesthetic appearance deteriorates

Engineering Contradiction:

Improveexposed sharp edgesVSAvoidaesthetic appearance

Core Design Contradiction:

Object-affected harmful factorsVSShape

Solution Approach 1:

The patent merges the protective cap function directly into the door panel structure by forming integrated bent portions that extend from the front panel to contact the door frame. This eliminates the need for separate caps while maintaining safety coverage over exposed edges, thus resolving the contradiction between safety improvement and aesthetic deterioration.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The door panel is segmented into multiple functional portions: a front panel, a top panel bent from the upper end of the front panel, and side panels bent from lateral sides. Each portion serves specific protective and aesthetic functions, allowing the structure to cover exposed edges while maintaining a clean, integrated appearance without traditional caps.

Inventive Principle:

Principle #1Segmentation

2Strength

If multiple sections meet at interior corners to define corners, then structural integrity is improved, but exposed edges increase

Engineering Contradiction:

Improvestructural integrityVSAvoidexposed edges

Core Design Contradiction:

StrengthVSObject-affected harmful factors

Solution Approach 1:

The patent extends the protection from a two-dimensional front panel into the third dimension by forming bent portions that wrap around and contact the door frame. This dimensional extension allows the structure to maintain corner integrity while covering the previously exposed edges that created safety hazards.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

Data Source

PatentUS9151505B2Door for oven and an oven

Publication Date: 2015.10.06 LG ELECTRONICS INC

AI summary

A door for an oven and the oven are provided. The door includes a door frame and a door panel where the door panel is coupled to the door frame. The door panel includes a front panel, a top panel bent from an upper end of the front panel to form a topside of the door, the top panel having a first bent portion spaced from the front panel to contact a top side of the door frame, and a pair of side panels, each side panel being bent from a lateral side of the front panel to form lateral sides of the door, and each side panel having a second bent portion spaced from the front panel to contact sides of the door frame.