Induction Heater for Electronic Cigarette Reducing Power Consumption

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Solution Overview

Problem

Cigarette-type electronic cigarette devices using ceramic heaters require high power consumption, leading to short battery usage time.

Innovation Solution

A heater for cigarette-type electronic cigarette devices that employs an induction heating method using a hollow metal tube heating member surrounded by a heat insulation member and a coil to generate a magnetic field, reducing power consumption by heating the cigarette through electromagnetic induction.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If ceramic heaters are used to heat cigarettes, then heating function is achieved, but power consumption is high

Engineering Contradiction:
Improveheating temperatureVSAvoidpower consumption
Core Design Contradiction:
TemperatureVSUse of energy by moving object

Solution Approach 1:

The patent replaces the conventional ceramic heating element with an electromagnetic induction heating system. The coil generates a magnetic field that induces eddy currents in the metal tube, converting electromagnetic energy directly into heat within the heating element itself, thereby reducing power consumption while maintaining effective cigarette heating temperature

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent changes the heating mechanism from resistive heating (ceramic) to electromagnetic induction heating (metal tube with coil). This parameter change in the heating method enables more efficient energy conversion and reduced power consumption while achieving the required heating temperature for cigarette combustion

Inventive Principle:
Principle #35Parameter changes

2Temperature

If high power is consumed to maintain heating temperature, then heating function is maintained, but battery usage time is short

Engineering Contradiction:
Improveheating temperatureVSAvoidbattery usage time
Core Design Contradiction:
TemperatureVSDuration of action of moving object

Solution Approach 1:

The electromagnetic induction heating system replaces the high-power ceramic heater, enabling more efficient energy utilization. The induction heating mechanism achieves the required heating temperature with lower power consumption, thereby extending battery usage time and duration of device operation

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The coil generates alternating magnetic fields through periodic electromagnetic induction, creating efficient cyclic heating action in the metal tube. This periodic action enables effective heat generation with reduced average power consumption, extending battery life

Inventive Principle:
Principle #19Periodic action

3Use of energy by moving object

If heat insulation is improved to reduce power loss, then heating efficiency is improved, but heat accumulation may cause overheating

Engineering Contradiction:
Improveheating efficiencyVSAvoidheat accumulation
Core Design Contradiction:
Use of energy by moving objectVSTemperature

Solution Approach 1:

The metal tube acts as an intermediary between the coil and the cigarette. It concentrates the electromagnetic energy into localized heat within its structure, then transfers this heat efficiently to the cigarette while the heat insulation layer prevents excessive heat accumulation and directs thermal energy where needed

Inventive Principle:
Principle #24Intermediary (Mediator)

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 induction heating method reduces power consumption, extending battery life and increasing usage time by efficiently heating the cigarette.

Implementation Method 1

a coil member that is wound multiple times around a circumference of the heat insulation member and that generates a magnetic field that causes the electromagnetic induction on a side of the heating member when power is applied

Methodology Applied
Scientific EffectElectromagnetic induction: Electromagnetic Induction

Implementation Method 2

heated through an eddy current induced by electromagnetic induction to heat the cigarette

Methodology Applied
Scientific EffectEddy current: Eddy Currents

Implementation Method 3

a heat insulation member that is disposed to surround a circumference of the heating member and blocks the heat generated by the heating member from moving outward

Methodology Applied
Scientific EffectThermal insulation: Thermal Insulation

Data Source

PatentEP3925461B1Heater for cigarette-type electronic cigarette device, and cigarette-type electronic cigarette device comprising same
Publication Date: 2024.10.09 AMOSENSE CO LTD
  • EP3925461B1 patent drawingFigure 1
  • EP3925461B1 patent drawingFigure 2
  • EP3925461B1 patent drawingFigure 3

AI summary

Provided is a heater for a cigarette-type electronic cigarette device. A heater for a cigarette-type electronic cigarette device, according to an exemplary embodiment of the present invention, is a heater for heating the circumference of a cigarette inserted therein by a predetermined length and comprises: a heating member which is disposed so as to surround the circumference of the cigarette when the cigarette is inserted, and which is heated by means of an eddy current induced by means of electromagnetic induction so as to heat the cigarette; an insulating member, disposed so as to surround the circumference of the heating member, for preventing heat generated in the heating member from moving to the outside; and a coil member which is wound, multiple times, around the circumference of the insulating member and which, when power is applied, generates a magnetic field that causes electromagnetic induction to the heating member.