Dielectric Heating Waveguide Segmentation for Loading

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Solution Overview

Problem

Existing dielectric heating systems face challenges in efficiently loading and unloading heated objects while preventing high-frequency wave leakage, leading to temperature instability and increased processing time due to separate installation of molding and transport apparatus.

Innovation Solution

A dielectric heating system with a closed housing containing a high-frequency oscillator, conductive closing members, and a position holding member that allows for easy loading and unloading of objects within the housing, preventing wave leakage and enabling efficient transfer to processing machines.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If electrodes or waveguide are used for dielectric heating, then heating uniformity and speed are improved, but loading and unloading operations become complex requiring electrode lifting or waveguide detachment

Engineering Contradiction:

Improveheating uniformity and speedVSAvoidloading and unloading operation

Core Design Contradiction:

TemperatureVSEase of operation

Solution Approach 1:

The waveguide is segmented into a fixed housing and movable closing members. The closing members can slide independently to open/close openings, allowing loading/unloading without moving the entire waveguide structure. This segmentation resolves the contradiction by maintaining the integrity of the heating chamber while enabling easy material handling.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The closing members are designed with sliding capability to dynamically open and close the loading/unloading openings. This dynamic feature allows the system to transition between closed (heating) and open (loading/unloading) states, improving operational ease while maintaining heating effectiveness.

Inventive Principle:

Principle #15Dynamics

2Temperature

If electrodes or waveguide are used for dielectric heating, then heating performance is improved, but high frequency wave leakage becomes a risk during loading and unloading

Engineering Contradiction:

Improveheating performanceVSAvoidhigh frequency wave leakage

Core Design Contradiction:

TemperatureVSObject-affected harmful factors

Solution Approach 1:

The waveguide structure is divided into fixed housing and movable closing members. The closing members maintain electromagnetic shielding when closed while allowing opening for loading/unloading. This segmentation enables the system to prevent wave leakage during heating while facilitating safe material handling.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The conductive closing members act as intermediaries that maintain electromagnetic shielding between the high-frequency field inside the waveguide and the external environment. When closed, they prevent wave leakage; when opened, they allow safe loading/unloading operations.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Adaptability or versatility

If molding apparatus and transport apparatus are installed separately, then device functionality is improved, but processing time increases and temperature stability decreases

Engineering Contradiction:

Improvedevice functionalityVSAvoidprocessing time and temperature stability

Core Design Contradiction:

Adaptability or versatilityVSLoss of time

Solution Approach 1:

The waveguide housing is designed to serve dual functions: as a heating chamber during dielectric heating and as a transfer device for moving heated materials to molding apparatus. This merging eliminates the need for separate transport apparatus, reducing processing time and maintaining temperature stability while preserving both heating and molding functionalities.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The waveguide housing is designed to serve multiple functions: heating chamber during dielectric heating and transfer device for moving heated materials. This multi-functionality reduces processing time and maintains temperature stability while preserving both heating and molding capabilities.

Inventive Principle:

Principle #6Universality (Multi-functionality)

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

Ensures ease of loading and unloading, prevents high-frequency wave leakage, and allows for stable and efficient transfer of heated objects to processing machines, reducing temperature instability and processing time.

Implementation Method 1

heats a dielectric object to be heated in a closed space by dielectric heating

Methodology Applied

Scientific EffectDielectric heating: Dielectric Heating

Implementation Method 2

first and second conductive closing members which respectively close the loading opening and the unloading opening from the inner side of the housing

Methodology Applied

Scientific EffectElectromagnetic shielding: Faraday Cage

Data Source

PatentUS9351346B2Material heating and providing apparatus

Publication Date: 2016.05.24 DENSO CORP

AI summary

A dielectric heating system which is provided with a high frequency oscillator, a housing which forms part of a waveguide and is provided with a loading opening and unloading opening, first and second conductive closing members which respectively close the loading opening and the unloading opening from the inner side of the housing, and a first position holding member which holds the object to be heated inside the housing, which makes the first conductive closing member slide to open the loading opening and charges the object to be heated into the housing, and which makes the second conductive closing member slide to open the unloading opening and unload the object to outside the housing.