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Heating device using LC oscillating circuit

A technology of heating device and oscillating circuit, applied in the direction of induction heating, application, induction current source, etc., can solve the problems of large heating of circuit switching elements, large power loss, uncontrollable heating temperature, etc.

Inactive Publication Date: 2019-08-09
CHINA TOBACCO ANHUI IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the devices that use electromagnetic induction heating to heat HNB cigarettes still have the problems of uncontrollable heating temperature, large power loss, and excessive heat generation of circuit switching elements.

Method used

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  • Heating device using LC oscillating circuit
  • Heating device using LC oscillating circuit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] Embodiment 1: The present invention uses the heating device of LC oscillation circuit

[0064] The implementation mode of this embodiment is as follows:

[0065] The circuit diagram of the heating device using the LC oscillating circuit is shown in the attached figure 1 .

[0066] The heating device is composed of a DC power supply 1, a boost circuit 2, a diode switch 3, a control circuit 4, an LC oscillation circuit 5 and an electromagnetic induction heating element 9;

[0067] in:

[0068] The DC power supply 1 is a DC battery with a voltage of 3.0V and a battery capacity of 6500mA, which is sold by Dongguan Liliang Electronics Co., Ltd. under the trade name polymer lithium-ion battery;

[0069] The boost circuit 2 is a DC boost circuit that boosts the voltage of the DC power supply 1 from 3.0V to 26.0V. It is a DC-DC adjustable voltage power supply sold under the product name LM2596S-ADJ by Dongxing Microelectronics Business Department, Futian District, Shenzhen. ...

Embodiment 2

[0075] Embodiment 2: The present invention uses the heating device of LC oscillation circuit

[0076] The implementation of this embodiment is the same as that of Example 1, except that the DC power supply 1 is a DC battery with a voltage of 3.7V and a battery capacity of 10000mA; the booster circuit 2 boosts the voltage of the DC power supply 1 from 3.7V to 36.0V DC boost circuit;

[0077] The LC oscillating circuit 5 is composed of 4 transistor switches 6, 2 capacitors 7 and 2 inductors 8 connected in the same way to form 2 parallel LC oscillating circuits 5; wherein, the transistor switch 6 is made by Shanghai Mingjing Electronic Technology Co., Ltd. Transistor switch products sold under the trade name Infineon FF450R12KT4 IGBT components; Capacitor 7 is a chip capacitor of CL10B304KB8NNNC type 300μF chip capacitor of Shenzhen Kaidak Electronics Co., Ltd.; 100μH 50-turn inductor coil sold by Electronic Technology Co., Ltd. as a single-layer self-adhesive coil in the produc...

Embodiment 3

[0081] Embodiment 3: The present invention uses the heating device of LC oscillation circuit

[0082] The implementation of this embodiment is the same as that of Example 1, except that the DC power supply 1 is a DC battery with a voltage of 1.5V and a battery capacity of 500mA; the booster circuit 2 boosts the voltage of the DC power supply 1 from 1.5V to 6.0V DC boost circuit;

[0083] The LC oscillating circuit 5 is composed of 8 transistor switches 6, 3 capacitors 7 and 3 inductors 8 connected in the same way to form 3 parallel LC oscillating circuits 5; wherein, the transistor switch 6 is made by Shanghai Mingjing Electronic Technology Co., Ltd. The product name is Infineon FF450R12KT4 type IGBT components and the transistor switch products are sold; capacitor 7 is NPO CL21C221JBANNNC type 600μF chip capacitor of Shenzhen Yaoxin Huake Electronics Co., Ltd.; inductor 8 is manufactured by Dongguan Tongfuning Electronic Technology Co., Ltd. The 10-turn inductance coil with ...

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Abstract

The invention relates to a heating device using an LC oscillating circuit. The heating device is composed of a DC power supply (1), a booster circuit (2), a diode switch (3), a control circuit (4), anLC oscillating circuit (5) and an electromagnetic induction heating element (9). The heating device of the invention realizes spontaneous oscillation, the current oscillation frequency is more stable, the energy loss is reduced, the equipment efficiency is higher, the heating state control is more flexible, and the device stability is good. The device of the invention meets the requirement of complicated working curve design for heating without burning cigarette.

Description

[0001] 【Technical field】 [0002] The invention belongs to the technical field of tobacco production. More specifically, the present invention relates to a heating device using an LC oscillating circuit. [0003] 【Background technique】 [0004] Research on the heating method of heat-not-burn tobacco products is a hot spot and key issue in the research of heat-not-burn cigarettes. At present, devices that use electromagnetic induction heating to heat HNB cigarettes still have the problems of uncontrollable heating temperature, relatively large power loss, and relatively large heating of circuit switching elements. In the electromagnetic induction heating device, the resonant circuit is the key to realize the regular oscillation of the circuit, and then realize the alternating magnetic field through the inductance. Compared with the hard switch, the LC oscillation circuit has the characteristics of high working efficiency and stable operation. [0005] The purpose of the prese...

Claims

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Application Information

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IPC IPC(8): A24F47/00H05B6/04
CPCA24F47/008H05B6/04
Inventor 徐迎波葛少林陈开波佘世科王健朱栋梁张亚平张超
Owner CHINA TOBACCO ANHUI IND CO LTD
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