CN103750566B - A kind of non-burning smoking apparatus based on electromagnetic wave heating - Google Patents

Abstract

The invention relates to a non-combustion smoking device based on electromagnetic wave heating. The smoking device includes a heating section, a control section and a power supply; The smoke inlet, the rear end of the outer casing is connected with an air inlet, the heater is set in the outer casing, the heater adopts an electromagnetic wave heating element, the electromagnetic wave heating element includes a coil and a heating inner sleeve, and the coil and the heating inner sleeve are matched to achieve heating. The heat insulation sleeve is arranged between the coil and the heating inner sleeve, and the two ends of the electromagnetic wave heating element are respectively provided with insulating heat insulation gaskets. The heating inner sleeve is hollow to form a heating chamber for accommodating tobacco products. The front end of the heating chamber is connected to the smoke inlet. The rear end of the heating chamber is connected with the air inlet; the control section is provided with an inner cavity, and the inner cavity is provided with a controller, and the controller is connected with the power supply. The invention has the characteristics of high thermal efficiency, constant temperature heating, high temperature control precision and good stability.

Description

A non-combustion smoking device based on electromagnetic wave heating

technical field

The invention relates to the technical field of novel cigarettes, in particular to a non-combustion smoking device based on electromagnetic wave heating.

Background technique

As the mainstream product form of tobacco consumption, traditional cigarettes have a history of more than 100 years. With the change of people's lifestyle and consumption concept, the rapid progress of science and technology and the continuous acceleration of commodity upgrading, the needs and concerns of tobacco consumers are constantly changing. At the same time, affected by factors such as tobacco control and public opinion, traditional cigarettes The development of cigarettes is restricted, and the emergence of new cigarettes has become inevitable.

Studies have shown that cigarette smoke produced by burning cigarettes is extremely harmful to non-smoking people, and fires caused by smoking are difficult to eliminate. Nicotine and most tobacco aroma components can be transferred to the smoke at 200-500 degrees Celsius. The combustion temperature of conventional cigarettes is above 800 degrees Celsius. If the heating temperature of cigarettes is lowered to below 500 degrees Celsius, various harmful components of smoke can be greatly reduced. , while the aroma components are relatively less affected. Therefore, it is very meaningful to study a heat-not-burn cigarette smoking device that avoids shredded tobacco burning and satisfies the needs of consumers.

At present, the low-temperature cigarettes appearing on the market deliver nicotine and aroma to the human body by means of heat-not-burn tobacco, which are filled with tobacco substances. Low-temperature cigarette products have changed the way traditional cigarettes burn with visible smoke, adopting the "heat-not-burn" method. Relevant studies have shown that at a lower temperature below 500°C, only heating but not burning tobacco, nicotine and some tobacco flavor components can be transferred to the smoke. Compared with traditional cigarettes, low-temperature cigarettes can significantly reduce the release of tar and harmful components as a whole. At the same time, there is basically no sidestream smoke, and the harm to others and the environment is very small.

At present, the low-temperature cigarettes that have been marketed or are being developed in the world mainly include: electric heating low-temperature cigarettes, fuel-heating low-temperature cigarettes and chemical heating low-temperature cigarettes. Electrically heated low-temperature cigarettes use electricity as a heat source to heat tobacco substances to produce nicotine smoke. The fuel heats the low-temperature cigarette, that is, the external fuel block is used as the heat source, and the tobacco substance is heated to produce nicotine smoke. Chemically heating low-temperature cigarettes, that is, using a chemical reactor as a heat source for heating.

Philip Morris Production Company applied for a cigarette product (application number: 89104827.8 application date: 1989-07-21), in which the heat generated by the combustion of a carbonaceous heat source is transferred to the flavor segment, thereby producing flavored smoke. The carbonaceous heat source and spice segments are housed in a non-combustible cylindrical hollow ceramic sleeve. Smoking articles produce substantially no spillage of smoke. The heat emitted by the heat source is transferred through convection and radiation. This patent uses carbon rods as the heating source. This heating method is disposable and cannot be reused.

Philip Morris Production Company also applied for a cigarette with at least one electric heater smoking system for delivering tobacco aroma to smokers (application number: 94102530.6 filing date: 1994-02-25). The cigarette includes : a carrier tube having first and second ends longitudinally spaced apart from each other and having first and second surfaces, the first surface enclosing a cavity between the first and second ends, the second The surface has an area for abutting against an electric heater; and a layer of tobacco substance layer, which is arranged on the first surface of the carrier tube and produces a smoke delivery in the cavity when heated. Tobacco aroma of the former, wherein the carrier tube and the layer of tobacco aroma material allow lateral air flow into the chamber, the patent adopts the method of electric heating, for the method of electric heating

In addition, for the above-mentioned low-temperature cigarettes, when smoking, the total particulate matter is low during the initial smoking period, but it tends to gradually increase until the end, giving consumers a sense of gradually increasing smoke intensity; the heating chamber adopts an integrated When smoking conventional cigarettes in the traditional heating mode, the smoke is very weak at first, then rises rapidly, and then the smoke volume decreases significantly with the increase of the number of puffs. This is mainly because it uses the first few puffs to reach the optimum temperature, so that the tobacco product produces a high concentration of aerosol, but as the puff progresses, the aerosol is exhausted. Compared with conventional cigarettes, the amount of smoke released is uncontrollable, and the sensory differences between different puff numbers are relatively large, and the sensory characteristics tend to weaken in the later period of smoking. In addition, prematurely heating the unheated part of the cigarette will cause part of the smoke or cause the part of the cigarette to be thermally degraded by heating and change its quality; reheating the previously heated part will cause unpleasant odor or harmful components.

Contents of the invention

In order to solve the above-mentioned technical problems, the object of the present invention is to provide a non-combustion smoking device based on electromagnetic wave heating. High, constant temperature heating, high temperature control accuracy, good stability, and long service life.

In order to achieve the above object, the present invention adopts the following technical solutions:

A non-combustion smoking device based on electromagnetic wave heating, the smoking device includes a heating section, a control section and a power supply, the heating section and the control section are connected as one; the heating section includes an outer casing, a heat insulating sleeve and a heater, and the front end of the outer casing There is a smoke inlet for inserting tobacco products, and the rear end of the outer casing is connected with an air inlet, and the heater is arranged in the outer casing, and the heater adopts an electromagnetic wave heating element, and the electromagnetic wave heating element includes a coil and a heating inner The heating sleeve, the coil and the heating inner sleeve are matched to realize heating. The heat insulation sleeve is arranged between the coil and the heating inner sleeve, and insulating and heat insulating gaskets are respectively arranged at both ends of the electromagnetic wave heating element, and the heating inner sleeve is hollow to form a The heating chamber for tobacco products is placed, the front end of the heating chamber communicates with the smoke inlet, and the rear end of the heating chamber communicates with the air inlet; the control section is provided with an inner cavity, and the inner cavity A controller is provided, the controller is connected to a power source, and the controller is connected to a conductive circuit connected to the heater.

As a further improvement, the heater adopts a segmented structure, the heater adopts a segmented structure, the electromagnetic wave heating element is divided into multiple sections, and insulating and heat-insulating gaskets are arranged between the multi-section electromagnetic wave heating elements, and the controllers are respectively set A conductive circuit is connected to each segment of the electromagnetic wave heating element. The above-mentioned structure provides segmented sequential heating of cigarettes, the amount of smoke between different puffs is basically the same, and at the same time, it can effectively prevent heat from being transferred to unheated parts or previously heated parts of the cigarette.

Preferably, each row of electromagnetic wave heating elements is divided into 3-20 sections.

As a further preference, the controller is provided with a logic control circuit to control the electromagnetic wave heating elements of each section to heat sequentially in the axial direction or combine 2~3 sections of electromagnetic wave heating elements to heat.

As a further improvement, each section of the electromagnetic wave heating element is respectively provided with a temperature sensor, and the temperature sensor is connected to the controller through a conductive circuit. Preferably, the temperature sensor adopts an annular collar type thermocouple. The present invention can feed back the real-time temperature of each segment of the electromagnetic wave heating element by setting the temperature sensor, and provides data support for the controller to control the real-time temperature of each segment of the electromagnetic wave heating element.

As a further improvement, the power supply is a power supply battery, and a control switch is connected to the power supply battery, and the control switch is used to control the power supply of the entire device for the user to turn on the device. The power supply battery is arranged in the inner cavity of the control section, or the rear end of the control section is connected with a power supply section, and the power supply battery is arranged in the power supply section.

As a further improvement, an air flow channel is provided in the control section, and the air flow channel communicates with the air intake hole, and a vent hole is provided on the side wall of the control section, and the air flow channel communicates with the air vent hole.

As another preference, an airflow sensor is arranged in the airflow channel, and the airflow sensor is connected to the controller through a conductive circuit. Airflow sensor When the human body is inhaling through the cigarette filter, the airflow flows into the heating chamber through the airflow channel. The airflow sensor device senses the airflow pressure generated by the human body when the cigarette filter is inhaled, and activates the heater through the controller.

As a further improvement, the inner end of the outer shell is provided with a connecting terminal, the connecting end closes the inner cavity of the outer shell, the central part of the connecting end is provided with the air inlet hole, and the heater is connected to the The above-mentioned insulating and heat-insulating gaskets are arranged between the ends. On the one hand, the facilities for connecting the ends ensure the heat insulation between the heater in the heating section and the outside world, and also provide help for the connection between the heating section and the control section. As a preference, the connecting terminal is provided with a plurality of jacks, the control section is provided with a plurality of plugs, the jacks and the plugs are made of conductive material, the plugs are electrically connected to the controller, and the jacks are respectively connected to the electromagnetic wave heating element. electrical connection. The use of conductive material jacks and plugs provides the best way to electrically connect the heating segment and the control segment.

As a further improvement, the heat insulation cover is made of nano-airgel heat insulation felt, and the outer shell is made of polyetheretherketone resin. Nano-airgel thermal insulation blanket is used, the operating temperature is -50～650℃, and the thermal conductivity is 0.021～0.035W/(m K) from 200～500℃, which ensures effective thermal insulation and prevents the heat loss of the heater . The polyether ether ketone resin shell is used, and the continuous use temperature is 260°C, which has good heat resistance and flame retardancy.

As a further improvement, the inner wall of the heating inner sleeve is provided with a thermally conductive coating. Setting the heat-conducting coating can isolate the direct contact between the cigarette and the heater, preventing the cigarette from contaminating the heater when it evaporates.

The invention adopts the electromagnetic wave heating method and provides a new rapid heating method of the non-combustion smoking device, which has the characteristics of high thermal efficiency, constant temperature heating, high temperature control precision, good stability and long service life. In the present invention, an inner wall heat conduction mechanism and a controller for controlling the working temperature and working sequence of the above heat conduction mechanism are arranged in the smoking set shell, so that the present invention can dry out the aroma components in cigarettes by means of electromagnetic wave heating instead of directly burning cigarettes, reducing the The harm of cigarettes to the human body is clearly understood, and consumers are guaranteed to obtain the characteristic experience of tobacco.

Further, the present invention adopts segmented successive heating of cigarettes, the amount of smoke between different puffs is basically the same, and at the same time, it can effectively prevent heat from being transferred to unheated parts or previously heated parts of cigarettes. The present invention can provide the number of puffs close to that of conventional cigarettes, and also allows smokers to suspend and resume use at any time.

Description of drawings

Fig. 1 is a structural schematic diagram of the present invention.

Fig. 2 is a structural schematic diagram of the heating section of the present invention.

detailed description

The specific implementation manner of the present invention will be described in detail below in conjunction with the accompanying drawings.

As shown in Figure 1, a non-combustion smoking device based on electromagnetic wave heating is composed of a heating section 1, a control section 2 and a power supply section 3, and the heating section 1, control section 2 and power supply section 3 are sequentially connected into one body. The front end of the outer casing 11 is provided with a smoke inlet 20 for inserting tobacco products, and the rear end of the outer casing is connected with an air inlet 19, and an airflow channel 22 is arranged in the control section 2, and the airflow channel 22 is connected to the air inlet hole. 19 communicates with each other, and a vent hole 23 is provided on the side wall of the control section 2, and the air flow channel 22 communicates with the vent hole 23.

As shown in Figure 2, the heating section 1 includes an outer casing 11, a heat insulating jacket 12 and a heater 13, the heater 13 is arranged in the outer casing 11, and the heat insulating jacket 12 is arranged between the heater 13 and the outer casing 11 Between; the heat insulation cover 12 adopts nano-airgel heat insulation blanket, the service temperature is -50～650 ℃, and the thermal conductivity is 0.021～0.035W/(m·K) from 200～500 ℃, which ensures effective Thermal insulation to prevent heat loss from the heater. The outer casing 11 is made of polyetheretherketone resin, which can be used continuously at a temperature of 260° C. and has good heat resistance and flame retardancy. The heater 13 adopts a segmented electromagnetic wave heating element 18, and the working temperature is 200-500 degrees Celsius. The electromagnetic wave heating element 18 is divided into 4~6 sections, and insulating and heat-insulating gaskets 14 are arranged between the multi-section electromagnetic wave heating elements 18 , and the controller 21 is respectively provided with a conductive circuit connected to each section of the electromagnetic wave heating element 18 . Each segment of the electromagnetic wave heating element 18 includes a coil 16 and a heating inner sleeve 15, and the coil 16 and the heating inner sleeve 15 are matched to realize heating. Both ends of the heating element 18 are respectively provided with insulating and heat-insulating gaskets 14. The heating inner sleeve 15 is hollow to form a heating cavity 10 for accommodating tobacco products, and a heat-conducting coating is provided on the inner wall of the heating inner sleeve 15. The front end of the heating cavity 10 is in contact with the heating chamber 10. The smoke inlet 20 mentioned above is connected, and the rear end is connected with the air inlet 19.

The control section 2 as shown in Figure 1 is provided with an inner cavity, and the inner cavity is provided with a controller 21, the controller 21 is provided with a conductive circuit connected to each section of electromagnetic wave heating element 18, and the controller 21 is provided with a logic control circuit The electromagnetic wave heating elements 18 of each section are controlled to be heated sequentially in the axial direction. The connecting terminal 4 is provided with a plurality of jacks, the control section 2 is provided with a plurality of plugs 16, the jacks and the plugs 16 are all made of conductive material, the plugs 16 are electrically connected with the controller 21, and the jacks are respectively connected with each The segment electromagnetic wave heating elements 18 are electrically connected. Each segment of the electromagnetic wave heating element 18 is respectively provided with an annular collar-type thermocouple 17 , and the annular collar-type thermocouple 17 is connected to the controller 21 through a conductive circuit. And an airflow sensor 7 is arranged in the airflow channel 22 of the control section 2, and the airflow sensor 7 is connected with the controller 21 through a conductive circuit.

As shown in Figure 1, the power supply section 3 inner chamber is provided with a power supply battery 5, the power supply battery 5 is a detachable/rechargeable battery with a voltage of 6-12 volts, and the power supply battery 5 is connected to the controller 21 through a conductive circuit . In addition, the whole device is also provided with a control switch 6, which is connected to the controller 21 through a conductive circuit, and the control switch 6 is used to control the power supply of the whole device for the user to turn on the device.

When the present invention is used, put the shredded tobacco section of the cigarette 8 into the cavity to be heated 10, turn on the control switch 6, and when the human body sucks through the cigarette filter, the airflow flows into the heating cavity 10 through the air inlet 19, and the airflow sensor The device 7 senses the airflow pressure generated by the human body when the cigarette filter is sucked, and starts the heater 13 through the controller 21. The logic circuit adopts an axial sequential heating sequence to heat the designated part of the cigarette to be smoked to 200-500 degrees Celsius. Under the action of the airflow, the unique aroma components in the cigarette product flow through the cigarette filter with the airflow and enter the oral cavity, thus ensuring that consumers can obtain the characteristic experience of tobacco.

Claims (10)

1. based on a non-burning smoking apparatus for electromagnetic wave heating, this smoking apparatus comprises bringing-up section (1), control section (2) and power supply, and bringing-up section (1) and control section (2) link into an integrated entity, it is characterized in that: bringing-up section (1) comprises shell body (11), collet (12) and heater (13), the front end of shell body (11) be provided with insert for tobacco product enter mouth (20), the rear end of shell body (11) is connected with air admission hole (19), air admission hole (19) is connected with the external world, described heater (13) is arranged in shell body (11), described heater (13) adopts electromagnetic wave heating element (18), electromagnetic wave heating element (18) comprises coil (16) and heating inner sleeve (15), coil (16) and heating inner sleeve (15) match and realize heating, described collet (12) is arranged between coil (16) and heating inner sleeve (15), and be respectively arranged with insulated heat packing ring (14) at the two ends of electromagnetic wave heating element (18), heating inner sleeve (15) hollow forms the heating chamber (10) of accommodating tobacco product, the front end of heating chamber (10) is connected with the described mouth (20) that enters, the rear end of heating chamber (10) is connected with described air admission hole (19), described control section (2) is provided with inner chamber body, and inner chamber body is provided with controller (21), and controller (21) is connected with power supply, and controller (21) is connected with conducting channel and is connected to heater (13), described heater (13) adopts segmentation structure, electromagnetic wave heating element (18) is divided into 3 ~ 20 sections, between multistage electromagnetic wave heating element (18), be provided with insulated heat packing ring (14), described controller (21) arranges conducting channel respectively and is connected to each section of electromagnetic wave heating element (18), the inner end of shell body (11) arranges connection end (4), the inner chamber of connection end (4) closure body (11), connection end (4) axially middle part is provided with described air admission hole (19), is provided with described insulated heat packing ring (14) between described heater (13) and connection end (4).

2. a kind of non-burning smoking apparatus based on electromagnetic wave heating according to claim 1, is characterized in that: controller (21) arranges logic control circuit and controls each section of electromagnetic wave heating element (18) according to axial order heating or combination 2 ~ 3 sections of electromagnetic wave heating element (18) heating.

3. a kind of non-burning smoking apparatus based on electromagnetic wave heating according to claim 1, is characterized in that each section of electromagnetic wave heating element (18) is respectively arranged with temperature sensor, and temperature sensor is connected with controller (21) by arranging conducting channel.

4. a kind of non-burning smoking apparatus based on electromagnetic wave heating according to claim 3, is characterized in that: temperature sensor adopts the collar-type thermocouple (17) of annular.

5. a kind of non-burning smoking apparatus based on electromagnetic wave heating according to claim 1, it is characterized in that: described power supply is supplying cell (5), supplying cell (5) is connected with gauge tap (6), described supplying cell (5) is arranged on the inner chamber body of control section (2), or the rear end of control section (2) is also connected with power section (3), described supplying cell (5) is arranged on power section (3).

6. a kind of non-burning smoking apparatus based on electromagnetic wave heating according to claim 1, it is characterized in that: in control section (2), be provided with gas channel (22), gas channel (22) is connected with described air admission hole (19), and the sidewall of control section (2) is provided with air-vent (23), gas channel (22) is connected with air-vent (23).

7. a kind of non-burning smoking apparatus based on electromagnetic wave heating according to claim 1, it is characterized in that: in gas channel (22), be provided with pneumatic sensor (7), pneumatic sensor (7) is connected with controller (21) by conducting channel.

8. a kind of non-burning smoking apparatus based on electromagnetic wave heating according to claim 1, it is characterized in that: (4) are provided with multiple jack to connection end, control section (2) is provided with multiple plug, jack and plug all adopt conductive material, plug and controller (21) are electrically connected, and jack is electrically connected with electromagnetic wave heating element (18) respectively.

9. a kind of non-burning smoking apparatus based on electromagnetic wave heating according to claim 1, is characterized in that: collet (12) adopts nanoporous aerogel heat insulation felt, and shell body (11) adopts polyether-ether-ketone resin.

10. a kind of non-burning smoking apparatus based on electromagnetic wave heating according to claim 1, is characterized in that: the inwall of heating inner sleeve (15) is provided with heat conduction plated film.