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An electromagnetic heating device for alloy phase change material smoke heat source

An electromagnetic heating device and alloy phase technology, applied in induction heating, coil devices, etc., can solve the problems of specific heat absorption, large latent heat of phase change, large heat loss of resistance, hidden danger of heat dissipation of the device, etc., to achieve high latent heat of phase change, heating High Efficiency, Reduced Power Loss and Heat Loss

Active Publication Date: 2022-05-13
UNIV OF SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, alloy phase change materials have large specific heat capacity and latent heat of phase change during the heating process. When using resistive heating, a large power and a long heating time are required, and at the same time, a large heat loss will be generated on the resistance. Leaving a hidden danger for the heat dissipation of the device

Method used

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  • An electromagnetic heating device for alloy phase change material smoke heat source
  • An electromagnetic heating device for alloy phase change material smoke heat source

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] like figure 1 As shown, the present invention is an electromagnetic heating device for alloy phase change material cigarette heat source, including a battery power supply 1, a control chip 2, an indicator light and a vibrator 3, a phase change heating core 4, an electromagnetic induction coil 5, and a heating chamber 7. Metal heat transfer wall 8, thermocouple 9 and device shell 10.

[0039] Inside the shell 10 of the electromagnetic heating device, a battery power supply 1, a control chip 2, an indicator, a vibrator 3, and a thermocouple 9 are sequentially arranged from left to right, and are connected through a power supply circuit and a control circuit. The thermocouple 9 is arranged on the downward extension of the metal heat transfer wall 8. The metal heat transfer wall 8 is a circular cylinder surrounding the heating section of the pod 6, and the phase change heating core 4, the heating chamber 7 and the electromagnetic induction coil are in sequence outward. 5. ...

Embodiment 2

[0051] The implementation mode of this embodiment is identical with the implementation mode of embodiment 1, just:

[0052] The phase change heating core 4 is filled with 7g of Sn-9Zn alloy;

[0053] The electromagnetic induction coil 5 is an electromagnetic induction coil with a twist distance of 3mm, a length of 50mm, a diameter of 25mm, an operating voltage of 12v, and an operating current of 5A;

[0054] The matching pod 6 is a pod with a diameter of 5mm and a length of 35mm;

[0055] The heating chamber 7 is a ceramic tube with an inner diameter of 9.8mm, a length of 40mm, and a wall thickness of 1mm;

[0056] The metal heating wall 8 is a brass tube with an inner diameter of 5mm, a length of 40mm, and a wall thickness of 1mm;

[0057] The heating power of the electromagnetic heating device for cigarettes in this embodiment is 60W, and the temperature it reaches during heating is 210°C, and the temperature is almost constant at about 185°C.

[0058] According to the me...

Embodiment 3

[0060] The implementation mode of this embodiment is identical with the implementation mode of embodiment 1, just:

[0061] The phase change heating core 4 is filled with 8g of Zn metal;

[0062] The electromagnetic induction coil 5 is an electromagnetic induction coil with a twist distance of 1.2mm, a length of 20mm, a diameter of 25mm, an operating voltage of 12v, and an operating current of 10A;

[0063] The matching pod 6 is a pod with a diameter of 8mm and a length of 20mm;

[0064] The heating chamber 7 is a ceramic tube with an inner diameter of 10mm, a length of 20mm, and a wall thickness of 1mm;

[0065] The metal heating wall 8 is a copper tube with an inner diameter of 8mm, a length of 20mm, and a wall thickness of 1mm;

[0066] The heating power of the electromagnetic heating device for cigarettes in this embodiment is 120W, and the temperature it reaches during heating is 425°C, and the temperature is relatively constant at about 418°C.

[0067] According to th...

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Abstract

The invention discloses an electromagnetic heating device used for a heat source of an alloy phase-change material for cigarettes. The electromagnetic induction heating device comprises a battery power source (1), a control chip (2), an indicator light and a vibrator (3), and a phase-change heating device. Core (4), electromagnetic induction coil (5), heating cavity (7), metal heat transfer wall (8), thermocouple (9) and device shell (10), the invention is used for the heat source of alloy phase change material cigarette The electromagnetic induction heating device combines the advantages of high energy conversion efficiency of electromagnetic induction heating, rapid heating and excellent physical temperature control of alloy phase change materials, and at the same time improves the smoking experience of heat-not-burn tobacco and the experience of using the heating device.

Description

technical field [0001] The invention belongs to the technical field of heat-not-burn tobacco heat sources, and provides an electromagnetic heating device for alloy phase-change material tobacco heat sources. Background technique [0002] The heat-not-burn tobacco heat source can heat the pod enough to emit tobacco-flavored aerosol without igniting the pod, and its sample can be smoked at a temperature of 90°C-200°C. This puts forward higher requirements on the performance of heat-not-burn tobacco heat sources, such as short preheating time, strong thermal conductivity, high effective heat storage, suitable heating temperature at 150-350°C, and continuous heat release time of more than 300s, etc. . [0003] Compared with the resistance heating method widely used at present, electromagnetic heating technology is a new heating method. Electromagnetic induction heating generates an alternating magnetic field through the components of the electronic circuit. When the magnetized...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05B6/36
CPCH05B6/36
Inventor 程旭东朱思宇张和平龚伦伦赵军超
Owner UNIV OF SCI & TECH OF CHINA
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