Thermal insulation structure for heating device

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Solution Overview

Problem

Conventional heating devices face challenges in effectively reducing heat dissipation due to heat conduction, convection, and radiation, leading to potential burns from exterior surfaces.

Innovation Solution

A multi-layered thermal insulation structure comprising a heat conduction layer, a heat storage layer, and a reflection layer is applied to the exterior of the heating device chamber, where the heat conduction layer absorbs heat from the chamber and stores it in the heat storage layer, and the reflection layer reflects radiation heat back to maintain temperature and reduce dissipation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If a housing is disposed outside of the chamber with a gap to isolate heat conduction, then the temperature on the exterior surface is lowered, but heat dissipation through convection and radiation cannot be effectively eliminated

Engineering Contradiction:

Improveexterior surface temperatureVSAvoidheat dissipation

Core Design Contradiction:

TemperatureVSLoss of energy

Solution Approach 1:

The thermal insulation structure is divided into multiple functional layers: a heat conduction layer (first layer) that conducts heat from the chamber, a heat storage layer (second layer) that absorbs and stores heat, and a reflection layer (third layer) that reflects radiation heat back. This segmentation allows each layer to address specific heat transfer mechanisms, effectively reducing overall heat dissipation while maintaining exterior surface temperature control.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent employs a composite thermal insulation structure combining materials with different thermal properties. The heat conduction layer uses materials with higher thermal conductivity to draw heat away, the heat storage layer uses materials with high specific heat capacity to absorb and retain heat, and the reflection layer uses materials with high reflectivity to bounce back radiation. This composite approach addresses multiple heat transfer modes simultaneously.

Inventive Principle:

Principle #40Composite materials

2Object-affected harmful factors

If conventional insulation methods are used to reduce heat conduction, then exterior surface temperature is reduced, but heat dissipation through convection and radiation persists

Engineering Contradiction:

Improveburn riskVSAvoidheat dissipation

Core Design Contradiction:

Object-affected harmful factorsVSLoss of energy

Solution Approach 1:

The patent converts the harmful effect of heat radiation by introducing a reflection layer that redirects radiation heat back toward the chamber and heat storage layer. Instead of allowing heat to dissipate harmfully to the exterior, the reflection layer turns the radiation back into a beneficial heat retention mechanism, simultaneously reducing burn risk and energy loss.

Inventive Principle:

Principle #22Blessing in disguise (Convert harm into benefit)

Solution Approach 2:

The patent changes the thermal parameters of the insulation system by selecting materials with specific thermal conductivity, heat capacity, and reflectivity values for each layer. The heat conduction layer has higher thermal conductivity to draw heat away, the heat storage layer has high heat capacity to absorb and retain heat, and the reflection layer has high reflectivity to bounce back radiation. This parameter optimization effectively addresses both burn prevention and heat retention.

Inventive Principle:

Principle #35Parameter changes

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

The solution significantly reduces heat dissipation from the heating device by absorbing and storing heat, reflecting radiation, and blocking convection, thereby maintaining the chamber's temperature and preventing burns.

Implementation Method 1

the heat conduction layer is adapted to conduct heat from the chamber to the heat storage layer

Methodology Applied

Scientific EffectHeat conduction: Conduction (thermal)

Implementation Method 2

the heat conduction from the chamber could be absorbed by the heat conduction layer and stored into the heat storage layer to maintain the temperature of the chamber

Methodology Applied

Scientific EffectHeat storage: Thermal Energy Storage

Implementation Method 3

the reflection layer could reflect radiation heat back to the heat storage layer and the chamber so as to reduce heat dissipation

Methodology Applied

Scientific EffectHeat radiation reflection: Reflection

Data Source

PatentUS10578362B2Thermal insulation structure for heating device

Publication Date: 2020.03.03 TEN WING SCIENTFIC CO LTD

AI summary

A thermal insulation structure is disposed at an exterior of a chamber of a heating device. The thermal insulation structure includes a heat conduction layer, a heat storage layer and a reflection layer. The heat conduction layer is adapted to conduct heat from the chamber to the heat storage layer. The heat storage layer is adapted to store heat. The reflection layer is adapted to reflect radiation heat back to the chamber, whereby a temperature of the chamber could be kept at a constant so as to reduce heat dissipation of the chamber.