CN103720057A - Sectional heating control device for non-burning cigarettes - Google Patents

Abstract

The invention relates to a segmented heating control device for non-combustion smoke. The device includes a segmented heater and a control system. The segmented heater includes a plurality of hollow heating elements. Insulation and heat insulation gasket, a plurality of hollow heating elements and the above-mentioned insulation and heat insulation gasket form a cylindrical whole, and the hollow of the cylindrical whole forms a heating chamber for accommodating tobacco products. One end of the heating chamber is the cigarette inlet, and the other end is provided with an airflow channel The outside air is connected; the control system includes a controller and a power supply, the power supply is connected to the controller, the controller includes a CPU unit and a power regulator, the CPU unit is connected to the power regulator, the power regulator is connected to each hollow heating element, and the CPU unit controls multiple Hollow heating elements heat sequentially in the axial direction. The invention can dry-distill the aroma-causing components in the existing cigarette sticks by means of electric heating, thereby reducing the harm of the cigarettes to the human body.

Description

A segmented heating control device for non-combustion smoke

technical field

The invention relates to the technical field of new cigarettes, in particular to a segmented heating control device for non-combustion smoke.

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 meets consumer demand.

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 section, thereby producing flavored smoke, carbonaceous heat source and flavor The segments are housed in a non-combustible cylindrical hollow ceramic sleeve. Smoking articles produce substantially no spillage of smoke. The heat from the heat source is transferred by convection and radiation, and the patent uses carbon rods as the heat source.

Philip Morris Manufacturing Co. also applied for a smoking system for delivering tobacco aroma to smokers with at least one electric heater. Application number: 94102530.6 Application date: 1994-02-25 The cigarettes include: a A carrier tube having first and second ends spaced longitudinally from each other and having first and second surfaces, the first surface enclosing a cavity between the first and second ends, the second surface having a region for abutting against an electric heater; and a layer of tobacco flavor material disposed on the first surface of the carrier tube, which when heated produces a smoker's smoke in the cavity Tobacco aroma, wherein the carrier tube and the aroma substance layer allow lateral air flow into the chamber, the patent adopts electric heating.

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 integrated heating When smoking conventional cigarettes, the smoke is very weak at the beginning, then rises rapidly, and then the smoke volume decreases significantly as the number of puffs increases. 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 segmented heating control device for non-combustion smoke. It can effectively prevent the heat from being transferred to the unheated part or the previously heated part of the cigarette.

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

A segmented heating control device for non-combustion smoke, the device includes a segmented heater and a control system, the segmented heater includes a plurality of hollow heating elements, and a Insulation and heat insulation gasket, a plurality of hollow heating elements and the above-mentioned insulation and heat insulation gasket form a cylindrical whole, and the hollow of the cylindrical whole forms a heating chamber for accommodating tobacco products. One end of the heating chamber is the cigarette inlet, and the other end is provided with an airflow channel The outside air is connected; the control system includes a controller and a power supply, the power supply is connected to the controller, the controller includes a CPU unit and a power regulator, the CPU unit is connected to the power regulator, and the power regulator is connected to each hollow heating element , The CPU unit controls multiple hollow heating elements to heat up in axial order.

Preferably, there are 3 to 20 hollow heating elements.

Preferably, each of the hollow heating elements is provided with a temperature sensor, and the temperature sensor is connected to the controller by providing a conductive circuit. As another preference, the temperature sensor adopts an annular collar-type thermocouple.

Preferably, the controller further includes a temperature signal processor, which is connected to the temperature sensor and transmits the collected temperature signal to the CPU unit.

Preferably, a thermally conductive insulating layer is provided on the cavity wall of the heating cavity. The heat conduction insulating layer is provided to isolate the direct contact between the cigarette and the heater, and prevent the cigarette from contaminating the heater when it evaporates. As another preference, the heat-conducting isolation layer is a heat-conducting ceramic tube, a heat-conducting metal tube or a heat-conducting coating.

the

Preferably, the control system includes a human-computer interaction and sensing unit connected to the controller, the human-computer interaction and sensing unit includes an airflow sensor, a switch button and a display unit, the The airflow sensor is arranged on the inner wall of the airflow channel, and the airflow sensor, switch button and display unit are all connected to the CPU unit through the IO interface. As another preference, the display unit adopts a touch liquid crystal display.

Preferably, the power supply is a battery, the battery is connected with a battery power detection unit, and the battery power detection unit is connected to the CPU unit through an SPI interface.

Because the present invention adopts the above-mentioned technical scheme, the tobacco products are heated in the heating chamber, and the heating chamber adopts segmental heating of the tobacco products successively, so that the amount of smoke inhaled by the user is basically the same. In the present invention, an inner wall heat conduction mechanism and a controller for controlling the working temperature and working order 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 the existing cigarette sticks by means of electric heating instead of directly Burning cigarettes reduces the harm of cigarettes to the human body and ensures that consumers get the characteristic experience of tobacco. In addition, the present invention does not need to change the structure of the cigarette, and has good popularization value.

Description of drawings

Fig. 1 is a schematic diagram of the external structure of the segmented heat-not-burn smoking device of the present invention.

Fig. 2 is a sectional view along A-A of Fig. 1 .

Fig. 3 is a structural schematic diagram of the heating section of the present invention.

Fig. 4 is a schematic structural diagram of the control system of the present invention.

Detailed ways

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 and Figure 2, a segmented heating and non-combustion smoking device is composed of a control system, 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 control system includes a human-computer interaction and sensing unit, a controller 21 and a power supply, the power supply is a rechargeable battery, and the rechargeable battery is connected to the controller 21. As shown in Figure 2, the front end of the outer casing 11 is provided with a smoke inlet 20 for inserting tobacco products, 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 with the airflow channel 22. The air inlet 19 communicates with each other, and a ventilation section 5 is also provided between the control section 2 and the power supply section 3. A plurality of ventilation holes 51 are arranged on the side wall of the ventilation section 5, and the ventilation holes 51 are connected with the air flow. Channel 22 is connected.

As shown in Figure 3, the heating section 1 includes an outer casing 11, a heat insulating sleeve 12 and a segmented heater 13, the segmented heater 13 is arranged in the outer casing 11, and the insulating sleeve 12 is arranged in the section Between the type heater 13 and the outer casing 11; the heat insulation cover 12 is made of nano-airgel thermal insulation felt, and the outer casing 11 is made of polyether ether ketone resin. The segmented heater 13 includes 6 to 8 hollow heating elements 18, the hollow heating elements 18 are ceramic heaters or electric heaters, the inner wall of the ceramic heater or the electric heater is provided with a heat-conducting isolation coating, and the ceramic heater Or the working temperature of the electric heater is 200-500 degrees Celsius, and a first insulating and heat-insulating gasket 14 is arranged between the two hollow heating elements 18, and 6 to 8 hollow heating elements 18 are insulated from the first insulating and heat-insulating The gasket 14 forms a cylindrical whole, and the cylindrical whole is hollow to form a heating chamber 10 for accommodating tobacco products. The front end of the heating chamber 10 communicates with the smoke inlet 20, and the rear end of the heating chamber 10 communicates with the air inlet 19. . The inner end of the outer casing 11 is provided with a connecting terminal 4, the connecting terminal 4 closes the inner cavity of the outer casing 11, the air inlet 19 is arranged in the axial middle of the connecting terminal 4, and the section A second insulating and heat-insulating gasket 15 is arranged between the type heater 13 and the connection terminal 4 . The heat insulation cover 12 is wrapped in a barrel shape and arranged on the outside of the segmented heater 13 , and a third insulating gasket 16 is arranged between the outside of the heat insulation cover 12 and the segmented heater 13 .

As shown in FIG. 2 , the control section 2 is provided with an inner cavity, and the inner cavity is provided with the controller 21 . As shown in Figure 4, the controller 21 includes a CPU unit, a temperature signal processor and a power regulator, the CPU unit is connected to the power regulator through a PID interface, and the power regulator is connected to each hollow heating element 18 to control a plurality of hollow heating elements. Elements 18 are heated sequentially in the axial direction. As shown in Figure 3, the hollow heating elements 18 are respectively provided with annular collar-type thermocouples 17, and the annular collar-type thermocouples 17 are connected to the temperature signal processor, and the temperature signal processor communicates with the CPU unit through the SPI interface. connect. The human-computer interaction and sensing unit is connected to the controller 21, the human-computer interaction and sensing unit includes the airflow sensor 7, the switch button and the display unit, the airflow sensor 7 is arranged on the inner wall of the airflow channel 22, and the airflow Both the switch button of the sensor 7 and the display unit are connected with the CPU unit through the IO interface. The rechargeable battery is also connected with a battery power detection unit, and the battery power detection unit is connected to the CPU unit through the SPI interface.

When the present invention is used, put the shredded tobacco section of the cigarette 10 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 7 Sensing the airflow pressure generated by the human body when the cigarette filter is sucked, the segmented heater 13 is activated through the controller 21, and the heating sequence in the axial direction is adopted to heat the designated part of the cigarette to be smoked to 200-500 degrees Celsius. Under the action of the cigarette, 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. A segmented heating control device for non-combustion smoke, characterized in that: the device includes a segmented heater (13) and a control system, and the segmented heater (13) includes multiple hollow heaters The element (18) is provided with an insulating and heat-insulating gasket (14) between two hollow heating elements (18), and a plurality of hollow heating elements (18) and the above-mentioned insulating and heat-insulating gasket (14) form a cylindrical whole, The tubular overall hollow constitutes a heating chamber (10) for accommodating tobacco products. One end of the heating chamber (10) is the cigarette inlet, and the other end communicates with the outside air through an airflow channel (22); the control system includes a controller (21) and the power supply, the power supply is connected to the controller (21), the controller (21) includes a CPU unit and a power regulator, the CPU unit is connected to the power regulator, and the power regulator is connected to each hollow heating element (18) to control A plurality of hollow heating elements (18) are heated sequentially in the axial direction. 2. A segmented heating control device for non-combustion smoke according to claim 1, characterized in that there are 3 to 20 hollow heating elements (18). 3. A segmented heating control device for non-combustion smoke according to claim 1, characterized in that: the hollow heating elements (18) are respectively provided with temperature sensors, and the temperature sensors are connected by a conductive circuit and a controller (21) connected. 4. A segmented heating control device for non-combustion smoke according to claim 3, characterized in that the temperature sensor is an annular collar-type thermocouple (17). 5. A segmented heating control device for non-combustion smoke according to claim 3 or 4, characterized in that the controller (21) also includes a temperature signal processor connected to a temperature sensor, and The collected temperature signal is sent to the CPU unit. 6. The segmented heating control device for non-combustion smoke according to claim 1, characterized in that: a heat conducting isolation layer is provided on the wall of the heating chamber (10). 7. A segmented heating control device for non-combustion smoke according to claim 6, characterized in that the heat-conducting insulating layer is a heat-conducting ceramic tube, a heat-conducting metal tube or a heat-conducting coating. 8. A segmented heating control device for non-combustion smoke according to claim 1, characterized in that: the control system includes a human-computer interaction and sensing unit, and the human-computer interaction and sensing unit is connected to the The controller (21), the human-computer interaction and sensing unit includes an airflow sensor (7), a switch button and a display unit, the airflow sensor (7) is arranged on the inner wall of the airflow channel (22), and the airflow sensor (7) , the switch button and the display unit are all connected to the CPU unit through the IO interface. 9. A segmented heating control device for non-combustion smoke according to claim 8, characterized in that: said display unit adopts a touch liquid crystal display. 10. A segmented heating control device for non-combustion smoke according to claim 1, characterized in that: the power supply is a battery, the battery is connected with a battery power detection unit, and the battery power detection unit is connected through an SPI interface the CPU unit.

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