Tobacco Roaster Induction Heating With Over-Temperature Protection
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Solution Overview
Problem
Conventional tobacco roasters lack an over-temperature protection function, posing safety risks and potentially damaging the equipment.
Innovation Solution
Incorporation of an electromagnetic induction roasting module with a temperature sensor that triggers an over-temperature protection circuit to regulate power when the preset temperature is reached, along with a ceramic seat and thermal insulation to enhance safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional heating methods (heating wire, heating net, heating pipe) are used, then the roasting function is achieved, but there is no over-temperature protection function leading to safety risks
Solution Approach 1:
The patent replaces conventional mechanical heating systems (heating wire, heating net, heating pipe) with an electromagnetic induction heating system. This substitution enables integrated temperature control through the induction coil's electromagnetic field, which naturally limits maximum temperature and provides inherent safety without requiring complex additional protection mechanisms
Solution Approach 2:
The patent incorporates a temperature sensor that detects the temperature of the cup and provides feedback to the control system. When the temperature reaches a preset threshold, the system automatically adjusts the power output of the induction coil, creating a closed-loop feedback control system that prevents over-temperature conditions
2Temperature
If electromagnetic induction heating is used, then temperature control is improved, but the cup material must withstand high temperatures
Solution Approach 1:
The patent employs a composite cup structure made of high-temperature resistant nylon material that can withstand the thermal environment of electromagnetic induction heating. This composite material approach allows the cup to maintain structural integrity while being heated by the induction coil, solving the contradiction between temperature control capability and material strength requirements
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 provides effective temperature control and safety protection, preventing overheating and enhancing the durability and reliability of the roaster.
Implementation Method 1
the magnetic induction coil is in a power-on state, the metal insert produces heat to heat a tobacco material in the cup
Implementation Method 2
the metal insert produces heat to heat a tobacco material in the cup to produce smoke
Implementation Method 3
the temperature sensor transmits a temperature signal to an over-temperature protection circuit
Implementation Method 4
a strip of thermal insulation cotton wrapped around the magnetic induction coil
Data Source
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AI summary
A tobacco roaster includes an electromagnetic induction roasting module. The electromagnetic induction roasting module comprises a cup, a metal insert, and a magnetic induction coil. The metal insert is disposed in the cup. In a power-on state of the magnetic induction coil, the metal insert produces heat to heat a tobacco material in the cup to produce smoke.