Induction Heating Device for Simultaneous Multi-Article Temperature Control
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Solution Overview
Problem
Existing induction heating technologies for metal articles, such as rolling element bearings and gears, often require multiple temperature probes and lack efficiency in heating multiple components simultaneously to different target temperatures, leading to inefficiencies in assembly and maintenance processes.
Innovation Solution
An induction heating device with a control box, magnetic core, and multiple temperature sensors that allows for simultaneous heating of multiple metal articles to different target temperatures using a single or multiple inductors, with a customizable heating cycle and alarm values to prevent overheating or underheating, and the option to position articles in contact for enhanced heat transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple temperature probes are used to monitor different metal articles, then temperature monitoring precision is improved, but device complexity increases
Solution Approach 1:
A single temperature probe is designed to monitor multiple metal articles simultaneously by detecting the temperature of the magnetic core, which in turn reflects the temperatures of all articles being heated. This universal monitoring approach eliminates the need for multiple dedicated temperature probes while maintaining measurement capability across all articles.
Solution Approach 2:
The magnetic core serves as an intermediary element that mediates between the heating inductor and the multiple metal articles. The temperature probe monitors the magnetic core's temperature, which acts as a proxy for the articles' temperatures, enabling indirect but effective temperature monitoring without direct contact with each article.
2Productivity
If multiple metal articles are heated simultaneously to different target temperatures, then productivity is improved, but control precision deteriorates
Solution Approach 1:
The heating system dynamically adjusts the heating parameters for different metal articles based on their individual target temperatures and current states. The control system can modify heating power, duration, and distribution in real-time to ensure each article reaches its specific target temperature, enabling simultaneous heating with differentiated control.
Solution Approach 2:
Different regions or zones of the heating system are assigned different heating characteristics to match the specific requirements of each metal article. The inductor can be configured to provide localized heating zones with different power levels, allowing each article to receive the appropriate heating intensity for its specific target temperature.
3Device complexity
If a single temperature probe monitors multiple articles, then device complexity is reduced, but measurement precision deteriorates
Solution Approach 1:
The magnetic core serves as an intermediary element that mediates between the heating inductor and the multiple metal articles. The temperature probe monitors the magnetic core's temperature, which acts as a proxy for the articles' temperatures, enabling indirect but effective temperature monitoring without direct contact with each article.
Solution Approach 2:
The magnetic core's temperature naturally reflects the thermal state of the metal articles being heated, as heat transfers from the inductor through the core to the articles. This self-indicating property allows the single temperature probe to effectively monitor the heating process without requiring direct measurement of each article.
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
Enables efficient and precise heating of multiple metal articles to desired temperatures, reducing downtime and assembly time while minimizing the number of temperature probes required, allowing for flexible temperature settings and adaptive heating cycles.
Implementation Method 1
an induction coil for heating a metal article such as a rolling element bearing, a ring or a gear, by inducing eddy currents in the metal article
Implementation Method 2
heating device (1) connected to a power supply (1) and comprising a magnetic core (8) provided with an inductor (9)
Data Source
AI summary
An induction heating device having a control box, a magnetic core provided with at least one inductor fed with a current by a power electronics that is controlled by a control circuit, the power electronics and the control circuit being disposed in the control box, a removeable closing yoke for completing the magnetic circuit of the magnetic core, and a plurality of temperature sensors. A plurality of metal articles are simultaneously heated so as to each reach a target temperature and according to a heating cycle during which the temperatures sensors monitor the temperatures of the plurality of the metal articles so that each metal article is connected to a temperature sensor that is not connected to any other metal article.