Electric Range Air Guide Sealing to Prevent Heated Air Leakage

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing electric ranges face overheating issues due to leaked heated air from the air guide outlet, which can heat internal components and affect performance, necessitating effective suppression of air leakage to prevent component heating.

Innovation Solution

The electric range incorporates a sealing structure at the air guide and base bracket coupling, featuring an expansion protrusion and coupling projection to prevent air leakage, ensuring heated air is discharged efficiently and components remain cool.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If the air guide outlet is designed to discharge heated air, then the cooling effect on heat generating elements is improved, but heated air may leak into the electric range and heat internal components

Engineering Contradiction:

Improvetemperature of heat generating elementsVSAvoidheating of internal components by leaked air

Core Design Contradiction:

TemperatureVSObject-affected harmful factors

Solution Approach 1:

A sealing structure is introduced as an intermediary element between the air guide outlet and the electric range interior. This sealing structure includes a sealing member that fits into a sealing groove, creating a barrier that prevents heated air from leaking into the electric range while allowing the air guide to function properly for cooling heat generating elements

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The sealing structure utilizes a flexible sealing member that can deform to accommodate slight variations in assembly and maintain effective sealing. This flexible sealing element adapts to the sealing groove geometry and maintains contact to prevent air leakage throughout operation

Inventive Principle:

Principle #30Flexible shells and thin films

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 design effectively suppresses air leakage, preventing overheating of internal components and enhancing the electric range's operational reliability by ensuring smooth air discharge and maintaining component temperatures.

Implementation Method 1

an air blowing fan disposed adjacent to the heat sink to move air to cool the heat sink

Methodology Applied

Scientific EffectConvection: Convection

Implementation Method 2

a heat sink for cooling heat generating elements producing relatively large amounts of heat

Methodology Applied

Scientific EffectThermal conduction: Conduction (thermal)

Implementation Method 3

a sealing structure at the air guide and base bracket coupling, featuring an expansion protrusion and coupling projection to prevent air leakage

Methodology Applied

Scientific EffectPhysical containment: Physical Containment

Data Source

PatentUS20220381441A1Electric range

Publication Date: 2022.12.01 LG ELECTRONICS INC

AI summary

An electric range is provided that may include a case, a cover plate coupled to an upper side of the case, and on which an object to be heated is placed, an air blowing fan discharging air, and an air guide that communicates with the air blowing fan, and forms a flow path of air. The air guide comprises a first air guide that communicates with the air blowing fan and guides the air discharged from the air blow fan substantially horizontally, and an expansion protrusion that protrudes from the first air guide in a lengthwise direction of the air guide or in a direction perpendicular to the lengthwise direction of the air guide such that a cross section of the air guide expands.