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WO2019109883A1 - 一种加热不燃烧卷烟的分段加热装置 - Google Patents

一种加热不燃烧卷烟的分段加热装置 Download PDF

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Publication number
WO2019109883A1
WO2019109883A1 PCT/CN2018/118905 CN2018118905W WO2019109883A1 WO 2019109883 A1 WO2019109883 A1 WO 2019109883A1 CN 2018118905 W CN2018118905 W CN 2018118905W WO 2019109883 A1 WO2019109883 A1 WO 2019109883A1
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Prior art keywords
heating
heat
ring
microcontroller
segment
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English (en)
French (fr)
Inventor
郭洪礼
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Shenzhen Yukan Technology Co Ltd
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Shenzhen Yukan Technology Co Ltd
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    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
    • A24F40/46—Shape or structure of electric heating means
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/50—Control or monitoring
    • A24F40/51—Arrangement of sensors
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/20—Devices using solid inhalable precursors

Definitions

  • the present application relates to an electronic smoking device, and more particularly to a segmented heating device for heating non-burning cigarettes.
  • Tobacco smoke contains at least three chemicals: tar, nicotine, and carbon monoxide.
  • Tar is a mixture of several substances that condense into a sticky carcinogen in the lungs.
  • Nicotine has a boiling point of 247 ° C. Nicotine is an addictive drug that is absorbed by the lungs and acts primarily on the nervous system. Carbon monoxide is produced by incomplete combustion of cut tobacco, which can reduce the ability of red blood cells to transport oxygen to the whole body, which is extremely harmful to the human body.
  • the smoking process except for the outer part of the cigarette, it is basically burned under the condition of insufficient oxygen supply.
  • the carcinogens such as tobacco tar are mostly produced at 500-900 °C, and the smoke tar and carbon monoxide generated during smoking are accompanied by smoke. Flow into the respiratory tract of smokers, causing harm to smokers.
  • the invention of the application No. CN201611067068.7 discloses an electronic smoking device comprising a power source, a controller and a heater, the heater being cylindrical, including a heating chamber into which the cigarette is inserted, the heater comprising at least one heating unit, and the heating unit comprising The electronic switch and the annular electric heating element; the electric heating element is connected to the power source through an electronic switch, and the control end of the electronic switch is connected to the control signal output end of the controller.
  • the invention uses an electric heater to heat the tobacco of the cigarette, the smoker can only suck the nicotine generated by the heating of the tobacco, the electric heater does not produce an open flame, the heated tobacco does not produce the smoke tar and the carbon monoxide, and can reduce the smoking of the tobacco. The harm of the person.
  • the invention has the disadvantage that the tobacco of the cigarette is directly heated by the annular electric heating element, the tobacco is not heated uniformly, the tobacco has a local high temperature, and the local high temperature spontaneous combustion is easily caused when sucking; and the tobacco segment of the cigarette is heated,
  • the tobacco section that stops heating may be too low in temperature, and the smoke generated by the thermal cracking of the heating section may be excessively absorbed by the low-temperature heated tobacco to reduce the generated smoke.
  • the technical problem to be solved by the utility model is to provide a partial heating of the non-burning cigarette which does not cause local high temperature of the tobacco, and does not cause excessive burning of the tobacco due to local high temperature, and the tobacco is not absorbed by the heated tobacco. Device.
  • the technical solution adopted by the utility model is a segment heating device for heating non-burning cigarettes, comprising a heater and a control circuit, the heater comprises a plurality of heating units and a heat pipe, and the heating unit comprises a ring shape.
  • the heating element comprises a heating ring, and the heating element is sleeved on the outer circumference of the heating ring; the plurality of heating rings are tightly arranged outside the heat conducting tube and are arranged separately along the axial direction of the heat conducting tube.
  • the heating ring is a C-shaped elastic ring and includes an axial through groove.
  • the heater comprises a heating pipe
  • the heating pipe comprises a plurality of heating rings of the heating unit
  • the heating ring comprises a C-shaped insulating groove, and the adjacent heating rings pass between The beam is partially connected.
  • the heat pipe is a stainless steel pipe, and the heating pipe is an aluminum alloy pipe.
  • the heating unit comprises an electronic switch and a temperature sensor
  • the control circuit comprises a microcontroller
  • the electric heating element is connected to the power source through the electronic switch, and the control end of the electronic switch is connected to the control signal output end of the controller
  • the temperature sensor is arranged On the outside of the heating element, the signal output of the temperature sensor is connected to the microcontroller.
  • the temperature sensor is a thermistor
  • the first end of the thermistor is connected to the chip power supply through a current limiting resistor
  • the second end is grounded
  • the first end of the thermistor is also used as a temperature sensor.
  • the signal output is terminated to the microcontroller.
  • control circuit comprises an operating current sampling circuit
  • working current sampling circuit comprises a sampling resistor, a filter resistor and a filter capacitor
  • the first end of the electric heating element is connected to the positive pole of the power source through the electronic switch
  • the second end is passed through the sampling resistor Grounding
  • the current sampling end of the microcontroller is connected to the second end of the heating element through a filter resistor
  • the filter capacitor is connected between the current sampling end of the microcontroller and the ground.
  • the heating ring of the utility model can make the shredded tobacco heat evenly, and the shredded tobacco does not spontaneously ignite due to local high temperature.
  • the heat pipe is arranged between the heating ring and the shredded tobacco. When heating to the next section, the heated shredded tobacco in front can obtain a part of the heat conducted by the heat pipe, and the heat of the heating section is not caused by the temperature of the shredded tobacco being too low. The smoke is excessively absorbed by the low temperature heated tobacco.
  • Figure 1 is a front elevational view of a segmented heating apparatus for heating non-combustion cigarettes in accordance with an embodiment of the present invention.
  • FIG. 2 is a rear elevational view of a segmented heating apparatus for heating non-burning cigarettes in accordance with an embodiment of the present invention.
  • Fig. 3 is a cross-sectional view taken along line A in Fig. 1;
  • Figure 4 is a front elevational view of the heating tube of the embodiment of the present invention.
  • Figure 5 is a rear elevational view of the heating tube of the embodiment of the present invention.
  • Figure 6 is a left side elevational view of the heating tube of the embodiment of the present invention.
  • Figure 7 is a cross-sectional view taken along line C in Figure 4 .
  • Figure 8 is a schematic diagram of a control circuit of an embodiment of the present invention.
  • the structure and principle of the segment heating device for heating non-burning cigarettes according to the embodiment of the present invention are as shown in FIGS. 1 to 7, and include a heater and a control circuit.
  • the heater comprises a heat pipe of stainless steel 1, a heating pipe 4 of aluminum alloy and four heating units, and the heating unit comprises a ring-shaped electric heating element 2, an electronic switch and a thermistor 3.
  • the heating tube 4 of the aluminum alloy is tightly sheathed on the outside of the stainless steel heat pipe 1, and the heating pipe 4 has four heating rings 401 which are arranged apart along the axial direction of the heat pipe 1. There is a C-shaped heat insulating groove 402 between the heating rings 401, and the adjacent heating rings 401 are partially connected by the cross beam 403.
  • the heating ring 401 is a C-shaped elastic ring having an axial through groove 404 to increase the elasticity of the C-ring.
  • the heating ring 401 is a part of the heating unit, the electric heating element 2 is sleeved on the outer circumference of the heating ring 401, and the temperature sensor of the thermistor 3 as a heating unit is disposed outside the electric heating element 2.
  • the first end of the thermistor NTC is connected to the chip power supply Vcc through a current limiting resistor, and the second end is grounded.
  • the first end of the thermistor is also connected to the microcontroller as a signal output end of the temperature sensor.
  • the control circuit comprises a microcontroller and an operating current sampling circuit.
  • the heating element of each heating unit is connected to the power source through an electronic switch, and the control end of the electronic switch is connected to the control signal output end of the controller.
  • Each of the heating units operates in sequence along the axial direction of the heat pipe 1.
  • the microcontroller opens the electronic switch of the heating unit to heat the electric heating element 2, and the heat generated by the electric heating element 2 is transmitted to the stainless steel heat pipe 1 through the heating ring 401, and then the stainless steel heat pipe 1 does not heat.
  • the tobacco burning the cigarette is heated.
  • the microcontroller turns off the electronic switch of the heating unit, and the heating unit stops heating.
  • the microprocessor opens the electronic switch of the next heating unit in the axial direction, and the next heating unit starts to work until all the heating units have completely heated the tobacco that heats the non-burning cigarette.
  • the working current sampling circuit comprises a sampling resistor R10, a filter resistor 11 and a filter capacitor C7.
  • the first end of the electric heating element is connected to the positive pole of the power supply through the electronic switch, the second end is grounded through the sampling resistor R10, and the current sampling end of the microcontroller passes through the filter resistor 11
  • the second end of the heating element is connected, and the filter capacitor C7 is connected between the current sampling end of the microcontroller and the ground; the microprocessor controls the on/off of the electronic switch according to the sampling value of the working current to prevent the circuit from being overloaded.
  • the aluminum alloy heating ring of the above embodiment can make the shredded tobacco heat evenly, and the shredded tobacco does not spontaneously ignite due to local high temperature.
  • the stainless steel tube is arranged between the aluminum alloy tube and the shredded tobacco. When heating to the next stage, the shredded tobacco that stops heating in front can obtain a part of the heat conducted by the stainless steel heat-conducting tube, and the temperature of the shredded tobacco is not too low, resulting in thermal cracking of the heating section. The generated smoke is excessively absorbed by the low temperature heated tobacco.

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  • Control Of Resistance Heating (AREA)

Abstract

一种加热不燃烧卷烟的分段加热装置，包括加热器和控制电路，加热器包括复数个加热单元和导热管(1)，加热单元包括环形的电热元件(2)；加热单元包括加热环(401)，电热元件(2)套在加热环(401)的外周；复数个加热环(401)紧套在导热管(1)的外面，沿导热管(1)的轴向分开排列。加热环(401)可以使烟丝受热均匀，烟丝不会因出现局部高温而自燃。导热管(1)布置于加热环(401)与烟丝之间，当加热到下一段时，前面停止加热的烟丝，可以获得导热管(1)传导来的部分热量，不会因这部分烟丝温度过低，导致加热段热裂解产生的烟雾会被低温的加热过的烟丝过度吸收。

Description

一种加热不燃烧卷烟的分段加热装置
相关申请
本申请主张于2017年12月5日提交的、名称为“一种加热不燃烧卷烟的分段加热装置”的中国实用新型专利申请：201721666518.4的优先权。
技术领域
本申请涉及电子吸烟器，尤其涉及一种加热不燃烧卷烟的分段加热装置。
背景技术
烟草的烟雾中至少含有三种化学物质：焦油，尼古丁和一氧化碳，焦油是由好几种物质混合成的物质，在肺中会浓缩成一种粘性的致癌物质。尼古丁的沸点为247℃，尼古丁是一种会使人成瘾的药物，由肺部吸收，主要是对神经系统发生作用。一氧化碳为烟丝不完全燃烧产生，能减低红血球将氧输送到全身去能力，对人体有极大的伤害。
在吸烟过程中，除了纸烟的外层部分外，基本上都是供氧不足条件下燃烧的，烟焦油等致癌物多在500—900℃生成，吸烟过程中生成的烟焦油和一氧化碳，随烟流进入吸烟者的呼吸道，对吸烟者造成伤害。
申请号为CN201611067068.7的发明公开了一种电子吸烟器，包括电源、控制器和加热器，加热器为筒形，中间包括插入香烟的加热腔，加热器包括至少一个加热单元，加热单元包括电子开关和环形的电热元件；电热元件通过电子开关接电源，电子开关的控制端接控制器的控制信号输出端。本发明采用电加热器对香烟的烟草进行加热，吸烟者只能抽吸到烟草因加热产生的尼古丁，电加热器不产生明火，受热的烟草不会产生烟焦油和一氧化碳，可以降低烟草对吸烟者的危害。
该发明的缺点是，采用环形的电热元件对香烟的烟草直接进行加热，烟草受热不均匀，烟丝会出现局部高温，吸食时极易导致局部高温处自燃；另外对香烟的烟草分段进行加热，停止加热的烟草段可能因温度过低而导致加热段热裂解产生的烟雾会被低温的加热过的烟丝过度吸收，减少产出的烟雾。
发明内容
本实用新型要解决的技术问题是提供一种烟草不会出现局部高温，吸食时不会因局部高温而出现烟草自燃、烟雾不会被加热过的烟丝过度吸收的加热不燃烧卷烟的分段加热装置。
为了解决上述技术问题，本实用新型采用的技术方案是，一种加热不燃烧卷烟的分段加热装置，包括加热器和控制电路，加热器包括复数个加热单元和导热管，加热单元包括环形的电热元件；加热单元包括加热环，电热元件套在加热环的外周；复数个加热环紧套在导热管的外面，沿导热管的轴向分开排列。
以上所述的分段加热装置，加热环为C形弹性环，包括一条轴向通槽。
以上所述的分段加热装置，加热器包括加热管，所述的加热管包括复数个所述加热单元的加热环，加热环之间包括C形隔热槽，相邻加热环之间通过过梁局部连接。
以上所述的分段加热装置，导热管为不锈钢管，加热管为铝合金管。
以上所述的分段加热装置，加热单元包括电子开关和温度传感器，控制电路包括微控制器，电热元件通过电子开关接电源，电子开关的控制端接控制器的控制信号输出端；温度传感器布置在电热元件的外侧，温度传感器的信号输出端接微控制器。
以上所述的分段加热装置，所述的温度传感器为热敏电阻，热敏电阻的第一端通过限流电阻接芯片电源，第二端接地，热敏电阻的第一端还作为温度传感器的信号输出端接微控制器。
以上所述的分段加热装置，控制电路包括工作电流采样电路，工作电流采样电路包括采样电阻、滤波电阻和滤波电容，电热元件的第一端通过电子开关接电源正极，第二端通过采样电阻接地，微控制器的电流采样端通过滤波电阻接电热元件的第二端，滤波电容接在微控制器的电流采样端与地之间。
本实用新型的加热环可以使烟丝受热均匀，烟丝不会因出现局部高温而自燃。导热管布置加热环与烟丝之间，当加热到下一段时，前面停止加热的烟丝，可以获得导热管传导来的部分热量，不会因这部分烟丝温度过低，导致加热段热裂解产生的烟雾会被低温的加热过的烟丝过度吸收。
附图说明
下面结合附图和具体实施方式对本实用新型作进一步详细的说明。
图1是本实用新型实施例加热不燃烧卷烟的分段加热装置的主视图。
图2是本实用新型实施例加热不燃烧卷烟的分段加热装置的后视图。
图3是图1中的A向剖视图。
图4是本实用新型实施例加热管的主视图。
图5是本实用新型实施例加热管的后视图。
图6是本实用新型实施例加热管的左视图。
图7是图4中的C向剖视图。
图8是本实用新型实施例的控制电路原理图。
具体实施方式
本实用新型实施例加热不燃烧卷烟的分段加热装置的结构和原理如图1至图7所示，包括加热器和控制电路。
加热器包括不锈钢的导热管1、铝合金的加热管4和4个加热单元，加热单元包括环形的电热元件2、电子开关和热敏电阻3。
铝合金的加热管4紧套在不锈钢的导热管1的外面，加热管4有4个沿导热管1的轴向分开布置的加热环401。加热环401之间有一条C形的隔热槽402，相邻加热环401之间通过过梁403局部连接。
加热环401为C形弹性环，有一条轴向通槽404，以增加C形环的弹性。
加热环401作为加热单元的一部分，电热元件2套在加热环401的外周，热敏电阻3作为加热单元的温度传感器布置在电热元件2的外侧。热敏电阻NTC的第一端通过限流电阻接芯片电源Vcc，第二端接地，热敏电阻的第一端还作为温度传感器的信号输出端接微控制器。
控制电路包括微控制器和工作电流采样电路，每个加热单元的电热元件通过电子开关接电源，电子开关的控制端接控制器的控制信号输出端。
各加热单元沿导热管1轴向分时依次工作。加热单元工作时，微控制器打开该加热单元的电子开关给电热元件2通电发热，电热元件2产生的热量通过加热环401传导给不锈钢的导热管1，再由不锈钢的导热管1对加热不燃烧卷烟的烟草进行加温，的当该加热单元热敏电阻的温度达到设定的温度时，温度传感器输出的电压发生的变 化，微控制器关闭该加热单元的电子开关，该加热单元停止加热，同时微处理器打开沿轴向下一个加热单元的电子开关，下一个加热单元开始工作，直到全部加热单元对加热不燃烧卷烟的烟草全部加热完成。
工作电流采样电路包括采样电阻R10、滤波电阻11和滤波电容C7，电热元件的第一端通过电子开关接电源正极，第二端通过采样电阻R10接地，微控制器的电流采样端通过滤波电阻11接电热元件的第二端，滤波电容C7接在微控制器的电流采样端与地之间；微处理器根据工作电流的采样值控制电子开关的通断，防止电路过载。
本实用新型以上实施例的铝合金加热环可以使烟丝受热均匀，烟丝不会因出现局部高温而自燃。不锈钢管布置铝合金管与烟丝之间，当加热到下一段时，前面停止加热的烟丝，可以获得不锈钢导热管传导来的部分热量，不会因这部分烟丝温度过低，导致加热段热裂解产生的烟雾会被低温的加热过的烟丝过度吸收。
虽然上面结合本发明的优选实施例对本发明的原理进行了详细的描述，本领域技术人员应该理解，上述实施例仅仅是对本发明的示意性实现方式的解释，并非对本发明包含范围的限定。实施例中的细节并不构成对本发明范围的限制，在不背离本发明的精神和范围的情况下，任何基于本发明技术方案的等效变换、简单替换等显而易见的改变，均落在本发明保护范围之内。

Claims (7)

  1. 一种加热不燃烧卷烟的分段加热装置，包括加热器和控制电路，加热器包括复数个加热单元，加热单元包括环形的电热元件；其特征在于，加热器包括导热管，加热单元包括加热环，电热元件套在加热环的外周；复数个加热环紧套在导热管的外面，沿导热管的轴向分开排列。
  2. 根据权利要求1所述的分段加热装置，其特征在于，加热环为C形弹性环，包括一条轴向通槽。
  3. 根据权利要求2所述的分段加热装置，其特征在于，加热器包括加热管，所述的加热管包括复数个所述加热单元的加热环，加热环之间包括C形隔热槽，相邻加热环之间通过过梁局部连接。
  4. 根据权利要求2所述的分段加热装置，其特征在于，导热管为不锈钢管，加热管为铝合金管。
  5. 根据权利要求1所述的分段加热装置，其特征在于，加热单元包括电子开关和温度传感器，控制电路包括微控制器，电热元件通过电子开关接电源，电子开关的控制端接控制器的控制信号输出端；温度传感器布置在电热元件的外侧，温度传感器的信号输出端接微控制器。
  6. 根据权利要求5所述的分段加热装置，其特征在于，所述的温度传感器为热敏电阻，热敏电阻的第一端通过限流电阻接芯片电源，第二端接地，热敏电阻的第一端还作为温度传感器的信号输出端接微控制器。
  7. 根据权利要求5所述的分段加热装置，其特征在于，控制电路包括工作电流采样电路，工作电流采样电路包括采样电阻、滤波电阻和滤波电容，电热元件的第一端通过电子开关接电源正极，第二端通过采样电阻接地，微控制器的电流采样端通过滤波电阻接电热元件的第二端，滤波电容接在微控制器的电流采样端与地之间。
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