Electrical Heating Device with Multi-Zone Temperature Feedback Control
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Solution Overview
Problem
Existing electrical heating devices struggle to address temperature irregularities in materials that cannot be predicted beforehand, leading to potential overheating during supplemental heating without proper temperature detection and control.
Innovation Solution
An electrical heating device with temperature detection means and supplemental heating means, controlled by a control unit that adjusts heating based on real-time temperature data to ensure areas with lower temperatures are heated appropriately, preventing excessive heating by stopping the main electrical heating when the highest temperature area reaches a target temperature.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If supplemental heating is performed without temperature detection, then heating coverage is improved, but temperature control precision deteriorates causing excessive heating
Solution Approach 1:
The patent implements feedback control by detecting temperatures at multiple positions during electrical heating and using this information to control supplemental heating. Temperature detection means measures temperatures at plurality of positions, and control means adjusts supplemental heating based on detected temperatures to maintain temperature uniformity, preventing excessive heating while ensuring adequate heating coverage.
Solution Approach 2:
The patent performs preliminary temperature detection at multiple positions before and during the heating process. By detecting temperatures in advance and during heating, the system can predict which areas will have low temperatures and prepare supplemental heating in advance, rather than reacting after temperature irregularities have already occurred.
2Manufacturing precision
If electrical heating time is adjusted for predicted low temperature areas, then temperature uniformity is improved, but temperature irregularities in unpredictable areas cannot be corrected
Solution Approach 1:
The system continuously detects temperatures at multiple positions during heating and uses this real-time feedback to identify unpredictable low-temperature areas. The control means adjusts supplemental heating based on actual detected temperatures rather than relying solely on pre-programmed heating times, enabling correction of temperature irregularities in areas that cannot be predicted beforehand.
Solution Approach 2:
The patent transitions from static, pre-determined heating time adjustment to dynamic, real-time temperature-based control. The supplemental heating is actively adjusted during the heating process based on detected temperature distributions, allowing the system to adapt to actual temperature conditions and correct irregularities in unpredictable areas.
3Manufacturing precision
If temperature detection at multiple positions is implemented, then temperature control accuracy is improved, but device complexity increases
Solution Approach 1:
The patent divides the heating area into multiple detection positions and controls supplemental heating at each position independently based on local temperature conditions. By segmenting the heating area into discrete zones with dedicated temperature detection and control, the system achieves high temperature control accuracy while managing complexity through modular, position-specific control rather than requiring complex centralized control of the entire area.
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 solution effectively reduces temperature irregularities in materials by identifying and heating low-temperature areas, preventing overheating and improving yield by maintaining precise temperature control.
Implementation Method 1
electrical heating device that electrically heats a material to be heated by bringing a plurality of electrodes into contact with the material to be heated with a predetermined distance between the electrodes and supplying an electric current flowing between the electrodes
Implementation Method 2
supplemental heating means for heating each of the plurality of areas of the material to be heated
Data Source
AI summary
An electrical heating device electrically heats a material to be heated by supplying an electric current flowing between a plurality of electrodes. The electrical heating device includes a temperature detection device which detects temperature information of a plurality of areas of the material to be heated, a supplemental heating device which heats each of the plurality of areas of the material to be heated, and a controller for controlling heating of the material to be heated. During the electrical heating, the controller controls, based on the temperature of each of the plurality of areas of the material to be heated detected by the temperature detection device, the supplemental heating device so that the supplemental heating device heats at least one area or all of areas having a temperature lower than the temperature of an area having a highest temperature among the plurality of areas.