CN108338415B - Peripheral heating smoking system - Google Patents
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- CN108338415B CN108338415B CN201710060846.8A CN201710060846A CN108338415B CN 108338415 B CN108338415 B CN 108338415B CN 201710060846 A CN201710060846 A CN 201710060846A CN 108338415 B CN108338415 B CN 108338415B
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Abstract
The invention discloses a peripheral heating smoking system, which comprises a heater, wherein the heater comprises: a heater housing, a heater cartridge located within the heater housing; wherein the heating cartridge comprises: the micro-heater is arranged on the cylinder base body; and the heating cylinder is an infrared heating cylinder. The peripheral heating smoking system disclosed by the invention has the advantages that the micro heater is arranged on the cylinder base body, the rapid heating characteristic of the micro heater is utilized, and the heating area is increased; and this cartridge heater is infrared cartridge heater, has realized utilizing micro heater and infrared heating mode to heat simultaneously, compares with prior art, has effectively improved heating efficiency, has shortened the latency of first mouth suction.
Description
Technical Field
The invention relates to the technical field of cigarettes, in particular to a peripheral heating smoking system.
Background
Although smoking is a health hazard, smokers still exist. Therefore, it is very important to develop a new tobacco product that can meet the needs of smokers and reduce the harmfulness, which is also a key research field in the tobacco industry at present.
Peripheral heating smoking systems, which heat a body of tobacco (e.g., a tobacco rod or cut tobacco) that produces less harmful gases at lower temperatures and thus generates an aerosol at lower temperatures for smoking by a smoker, are currently a focus of research in the tobacco industry.
Among the peripheral formula heating smoking system, adopt the heater to heat the cigarette body, generally adopt simple electric heating mode, heating efficiency is low, and heat loss is big, and the latency of the first mouth of consumer suction is longer, generally needs 15 to 30 seconds, and is longer even, can't accomplish instant use, is difficult to satisfy the higher demand that the consumer experienced to the suction.
In summary, a problem to be solved by those skilled in the art is how to rapidly heat the smoke body to improve the heating efficiency and shorten the waiting time of the first suction.
Disclosure of Invention
It is an object of the present invention to provide a peripheral heated smoking system to increase heating efficiency and reduce the latency of the first puff.
In order to achieve the above purpose, the invention provides the following technical scheme:
a peripheral heated smoking system comprising a heater, the heater comprising: a heater housing, a heater cartridge located within the heater housing; wherein the heating cartridge comprises: the micro-heater is arranged on the cylinder base body; and the heating cylinder is an infrared heating cylinder.
Preferably, the number of the micro heaters is at least two, and the micro heaters are connected in series or in parallel;
when the micro heaters are connected in series, the heaters realize simultaneous heating; when the micro heaters are connected in a parallel connection mode, the heaters realize sectional heating.
Preferably, the micro heater is one.
Preferably, the micro-heater comprises: the thin film resistor serves as a heat source, the dielectric film mechanically supports the thin film resistor, and the thin film protective layer covers the thin film resistor;
the thin film resistor is manufactured on the surface of the dielectric thin film by utilizing a photoetching process.
Preferably, the thin film resistor is formed of a loop formed of a conductive material.
Preferably, the thin film resistor is formed by connecting at least two loops formed by conductive materials in parallel.
Preferably, the dielectric film is made of one or a composite material of at least two of silicon, silicon oxide, silicon nitride and silicon carbide, the film protection layer is made of one or a composite material of at least two of silicon, silicon oxide, silicon nitride and silicon carbide, and the temperature resistance of the dielectric film and the film protection layer is not less than 600 ℃;
the thin film resistor is made of a polycrystalline silicon semiconductor, a silicon carbide semiconductor, a diffused silicon semiconductor, platinum, tungsten or nichrome, and the temperature resistance of the thin film resistor is not less than 650 ℃.
Preferably, the heating cartridge further comprises: the infrared material coating is sprayed or printed on the inner wall of the heat-conducting ceramic cylinder; wherein, the micro heater is embedded in the inner wall of the cylinder base body.
Preferably, the thickness of the heat conduction ceramic cylinder is 0.05-0.8 mm, and the thickness of the infrared material coating is 0.01-0.2 mm.
Preferably, the cross section of the heating cylinder is circular ring or regular polygon ring.
Preferably, the length ratio of the heating cylinder to the heater is 5-10: 10.
preferably, the thickness of the heating cylinder is 0.5-2 mm.
Preferably, the control module of the peripheral heating smoking system is connected with the heater through a connecting element, the connecting element is provided with an air inlet communicated with the heating cylinder, and an air flow regulating part is arranged at the air inlet; the air inlet is a damped air inlet, the damped air inlet comprising: and the air inlet through hole is arranged on the air inlet damping film of the air inlet through hole in a replaceable manner.
Preferably, the peripheral heated smoking system described above further comprises a control system comprising:
the first acquisition module is used for detecting the air inlet flow speed and the air inlet amount of the heater;
a first temperature sensor for detecting a first temperature of an intake air flow of the heater;
a second temperature sensor for detecting a second temperature in a heating cylinder of the heater;
the second obtaining module is used for obtaining the heat consumption according to the air intake amount, the first temperature and the second temperature;
a first control module for controlling heat output of the heater;
wherein the first control module comprises:
a first control unit for controlling the heat output of the heater to increase if the intake air flow rate is greater than a preset rate or the intake air amount is greater than a preset intake air amount; if the air flow speed of the inlet air is not changed in a preset time period, the air flow speed is used for controlling the heater to stop outputting heat;
a second control unit for controlling the heat output of the heater to be reduced if the second temperature is higher than a preset temperature;
the third control unit is used for controlling the heater to maintain the current heat output if the second temperature is within a set temperature range and the heat consumption is not greater than the preset consumption;
the maximum value of the set temperature range is less than or equal to the preset temperature.
Preferably, the control system further includes: the third acquisition module is used for acquiring the smoke release amount according to the smoke volume data in the heater;
the fourth acquisition module is used for acquiring the residual smoke amount of the smoke body according to the smoke release amount and the heat consumption amount;
and the second control module is used for controlling the heater to stop heating when the residual flue gas amount is less than a preset value.
Preferably, the control system further includes:
the smoking power switch is used for controlling the on-off of the heater and the power supply and the on-off of the controller and the power supply;
a mode switch for controlling a heating mode of the heater;
the power-on indicator light is used for displaying the working state of the power supply;
a heating indicator light for displaying a heating state of the heater;
the third control module is used for controlling the heating indicator lamp to continuously light up after the heater is heated to the preset temperature so as to prompt a user to suck;
the fourth control module is used for controlling the power-on indicator lamp to continuously light after the heater and the power supply are switched on and the controller and the power supply are switched on;
the fifth control module is used for controlling the heating indicator lamp to flicker after the mode switch is turned on;
and the sixth control module is used for controlling the power-on indicator lamp to flicker after the power supply is cut off.
Preferably, the first obtaining module includes:
a pressure sensor for detecting an air pressure of an intake air flow of the heater;
a first calculation unit configured to calculate an airflow velocity of the intake airflow based on a change in the air pressure within a preset time;
a second calculation unit for calculating an intake air amount of the heater based on the suction time, the airflow passage cross-sectional area, and the airflow speed.
According to the peripheral heating smoking system provided by the invention, the micro heater is arranged on the cylinder base body, the rapid heating characteristic of the micro heater is utilized, and the heating area is increased; and this cartridge heater is infrared cartridge heater, has realized utilizing micro heater and infrared heating mode to heat simultaneously, compares with prior art, has effectively improved heating efficiency, has shortened the latency of first mouth suction.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic diagram of a heated peripheral smoking system according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a heating cartridge in a peripheral heated smoking system according to an embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view of a cartridge in a peripherally heated smoking system in accordance with embodiments of the present invention;
figure 4 is a schematic diagram of a control system for a peripheral heated smoking system provided by an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
1-3, embodiments of the present invention provide a peripheral heated smoking system comprising: a heater 1, a controller 2, and a power supply 3 connected in sequence.
Wherein, the heater 1 is detachably connected with the controller 2, and the controller 2 is detachably connected with the power supply 3. Therefore, any part can be conveniently replaced when damaged.
The power supply 3 supplies power to the heater 1 and the controller 2, and the controller 2 controls the operation of the heater 1.
Preferably, the heater 1 is detachably connected with the controller 2 through a screw-thread fit, and the controller 2 is detachably connected with the power supply 3 through a screw-thread fit.
Of course, the heater 1, the controller 2 and the power source 3 may be detachably connected by other structures or connectors, and are not limited to the above embodiments.
The heater 1 described above includes: a heater case 12, a heater cartridge 11 positioned within the heater case 12; wherein, the heating cylinder 11 includes: the heater comprises a cylinder base 111 and micro heaters 112 arranged on the cylinder base 111, wherein the micro heaters 112 are uniformly distributed along the circumferential direction of the cylinder base 111.
According to the peripheral heating smoking system provided by the embodiment of the invention, the micro-heater 112 is arranged on the cylinder base body 111, the rapid heating characteristic of the micro-heater 112 is utilized, and the heating area is increased; and the heating cylinder 11 is an infrared heating cylinder, so that the micro-heater 112 and an infrared heating mode are utilized to heat simultaneously, compared with the prior art, the heating efficiency is effectively improved, and the waiting time of the first suction is shortened.
Preferably, the Micro-heater 112 is a MEMS (Micro-Electro-Mechanical System) Micro-heater.
One end of the heater housing 12 is provided with a placement inlet 14 for placement of a tobacco body (tobacco material), and the other end of the heater housing 12 is connected to the controller 2.
The heating cylinder 11 is cylindrical and is used for accommodating a tobacco body (tobacco material), and the cross section of the heating cylinder 11 may be circular or regular polygonal ring, etc. It is understood that the regular polygonal ring may be a regular quadrilateral ring, a regular pentagonal ring, etc. Preferably, the cross section of the heating cylinder 11 is a circular ring matched with the size of the smoke body, and the inner diameter of the heating cylinder 11 is 5-10 mm.
Preferably, the tobacco body comprises tobacco leaves derived from flue-cured tobacco, burley tobacco, aromatic tobacco, sun-cured red tobacco or sun-cured yellow tobacco, or tobacco fragments, or cut tobacco, or tobacco powder or tobacco sheets, or the like, or cigarettes with certain shapes and sizes made of the tobacco materials.
Preferably, the length ratio of the heating cylinder 11 to the heater 1 is 5-10: 10. for example, the length ratio of the cartridge heater 11 to the heater 1 is 5: 10, or the length ratio of the heating cylinder 11 to the heater 1 is 6: 10, or the length ratio of the heating cylinder 11 to the heater 1 is 8: 10, or the length ratio of the heating cylinder 11 to the heater 1 is 10: 10. further, the length ratio of the heating cylinder 11 to the heater 1 is 8: 10.
preferably, the thickness of the heating cylinder 11 is 0.5 to 2 mm. Furthermore, the thickness of the heating cylinder 11 is 0.6-1 mm.
The number of the micro-heaters 112 may be one or at least two. As shown in fig. 2, a plurality of micro-heaters 112 are disposed on the cartridge base 111, and the micro-heaters 112 are connected in series or in parallel, so as to implement a simultaneous heating or a stepwise programmed heating function.
Specifically, when the micro-heaters 112 are connected in series, the heater 1 realizes simultaneous heating; when the micro-heaters 112 are connected in parallel, the heater 1 realizes the sectional heating.
The micro-heaters 112 are distributed on the base 111 of the cartridge, and the base of the cartridge 11 may be made of mica, asbestos, marble, ceramic, high temperature glass, or high temperature resistant polymer material.
Preferably, the micro-heater 112 includes: the thin film resistor serves as a heat source, the dielectric film mechanically supports the thin film resistor, and the thin film protective layer covers the thin film resistor; the thin film resistor is manufactured on the surface of the dielectric thin film by utilizing a photoetching process.
The thin film resistor is composed of one loop formed by different patterns formed by conductive materials, or the thin film resistor is composed of two loops formed by different patterns formed by conductive materials in parallel, or the thin film resistor is composed of at least three loops formed by different patterns formed by conductive materials in parallel.
The conductive material of the thin film resistor may be one or more, each conductive material forms a pattern, and the patterns formed by any two conductive materials may be the same or different.
Preferably, the length of the micro-heater 112 is 0.5-10 mm, the width of the micro-heater 112 is 0.5-5 mm, and the thickness of the micro-heater 112 is 0.05-1.5 mm. Further, the length of the micro-heater 112 is 1-5 mm, the width of the micro-heater 112 is 0.5-2 mm, and the thickness of the micro-heater 112 is 0.05-0.5 mm.
Preferably, the thickness of the dielectric film is 0.1-1 mm, the thickness of the film resistor is 50-1000 nm, and the thickness of the film protective layer is 50-1000 nm.
Furthermore, the thickness of the dielectric film is 0.1-0.3 mm, and the thickness of the film resistor is 100-300 nm; the thickness of the thin film protective layer is 100 to 200 nm.
The dielectric film is made of one or a composite material consisting of at least two of silicon, silicon oxide, silicon nitride and silicon carbide, the film protective layer is made of one or a composite material consisting of at least two of silicon, silicon oxide, silicon nitride and silicon carbide, and the temperature resistance temperature of the dielectric film and the film protective layer is not less than 600 ℃;
the thin film resistor is made of a polycrystalline silicon semiconductor, a silicon carbide semiconductor or a diffused silicon semiconductor, or is made of platinum, tungsten and nichrome, and the temperature resistance of the thin film resistor is not less than 650 ℃.
Preferably, the thin film resistor has temperature resistance from 650 ℃ to 1000 ℃ according to different materials.
Preferably, the dielectric film and the film protective layer are made of silicon oxide; the material of the film resistor is metal platinum.
The method for manufacturing the micro-heater 112 is a standard photolithography process, and mainly includes the steps of photolithography, sputtering, etching, scribing, bonding, pressure welding, and the like.
Preferably, the heating cylinder 11 may also adopt one or more of far infrared heating and electric heating to perform auxiliary heating.
Preferably, the heating cartridge 11 has an infrared heating structure, and the heating cartridge 11 having the infrared heating structure may partially or entirely adopt the infrared heating structure.
The heating cylinder 11 with the infrared heating structure is a metal matrix infrared heater, a ceramic infrared heater, a silicon carbide infrared heater, a quartz glass infrared heater, a carbon fiber infrared heater, a high polymer material infrared heater or a semiconductor infrared heater.
The ceramic infrared heater can be divided into three types according to the radiation surface material: the first is to coat a high emissivity infrared material coating on a common ceramic or metal substrate; the second type is directly made of high emissivity ceramics, such as blackbody ceramic heaters and the like; the third type is a metal ceramic infrared heater made by mixing and sintering metal powder and ceramic powder.
Further, the infrared heating cylinder is a ceramic infrared heater, that is, the cylinder base 111 is a ceramic cylinder base, and part or all of the cylinder base 111 adopts an infrared heating structure and plays a heating role together with the micro-heater.
Preferably, the infrared heating structure is made of an electric heating element, a heat conductive ceramic and a far infrared ceramic glaze. The material of the electric heating element can be a metal electric heating material or a nonmetal electric heating material.
Further, the electric heating element is made of tungsten which is a metal exothermic material.
Preferably, the heating cartridge 11 having the infrared heating structure is that the infrared heating structure is provided in the heating cartridge 11 embedded with the micro-heater 112, and heat generated by the micro-heater 112 is used as a heat source of the infrared heating structure.
Further, the infrared heating structure is made of heat-conducting ceramic and far infrared ceramic glaze.
The infrared heating cartridge includes: a cylinder base 111, a micro-heater 112 embedded in the inner wall of the cylinder base 111, a heat-conducting ceramic cylinder 113 disposed in the cylinder base 111, and an infrared material coating 114 sprayed or printed on the inner wall of the heat-conducting ceramic cylinder 113, as shown in fig. 3.
In the infrared heating cylinder, when the micro-heater 112 operates, heat is transferred to the infrared material coating 114 through the heat-conducting ceramic cylinder 113, and the infrared material coating 114 rapidly radiates infrared rays for uniformly heating the tobacco material.
Further, the infrared heating structure is made of far infrared ceramics. The infrared heating cartridge includes: a cylinder base 111, a micro-heater 112 embedded in the inner wall of the cylinder base 111, and a heat-conducting ceramic cylinder 113 made of far infrared ceramic and disposed in the cylinder base 111.
Preferably, the thickness of the heat-conducting ceramic cylinder 113 is 0.05 to 0.8 mm. More preferably, the thickness of the heat-conducting ceramic cylinder 113 is 0.1 to 0.3 mm.
Preferably, the thickness of the infrared material coating 114 is 0.01 to 0.2 mm. More preferably, the thickness of the infrared material coating 114 is 0.01 to 0.1 mm.
Preferably, the infrared heating cylinder has an infrared wavelength of 0.5 to 25 μm. More preferably, the infrared heating cylinder has an infrared wavelength of 1 to 10 μm.
Preferably, the heating temperature of the heating cylinder 11 is 150 to 350 ℃. Further, the heating temperature of the heating cylinder 11 is 200 to 300 ℃.
Preferably, the cartridge heater 11 is fixed to the base 15. More preferably, the base 15 is provided with a vent hole.
Preferably, a thermal insulation layer is further provided between the heating cartridge 11 and the outer casing 13. The heat insulating layer realizes the effects of reducing the temperature of the shell and reducing heat loss by filling heat insulating materials or arranging a vacuum layer. The heat insulating material is a porous material or a layered material, and includes, but is not limited to, micro-nano heat insulating material, foamed plastic, aluminum silicate fiber, expanded perlite, superfine glass fiber cotton, asbestos, rock wool and the like.
Preferably, a pressure sensor 4 is also provided in the heater 1 for detecting changes in air pressure in the air flow path and transmitting signals of the changes in air pressure to the controller 2 for controlling the operation of the peripheral heating smoking system.
More preferably, the accuracy of the pressure sensor 4 is better than 0.02%.
Preferably, the heater 1 is further provided with a first temperature sensor for detecting a first temperature of the intake air flow of the heater 1 and a second temperature sensor for detecting a second temperature inside the cartridge heater 11 of the heater 1, the first temperature sensor and the second temperature sensor transmitting signals of temperature changes to the controller 2 for controlling the operation of the peripheral heating smoking system.
More preferably, the accuracy of both the first temperature sensor and the second temperature sensor is better than 1 ℃.
As illustrated in fig. 1, the controller 2 is constituted by a smoking power switch 23, a mode switch 24, a controller case 25, a control circuit board 26, an energization indicator lamp 27, and a heating indicator lamp 28. The positions of the smoking power switch 23 and the mode switch 24 may be interchanged. The smoking power switch 23 is provided with an energizing indicator lamp 27, and the mode switch is provided with a heating indicator lamp 28.
The heater 1 is connected to the controller 2 by means of a connecting element 21, which connecting element 21 is provided with an air inlet 22. The air inlet 22 communicates with the heater cartridge 11, and air enters the heater cartridge 11 of the heater 1 through the air inlet 22. The vent hole in the base 15 communicates with the air inlet 22.
Preferably, the intake port 22 is provided with an airflow adjustment member that can be used to manually adjust the amount of intake air. Further, the intake port 22 includes an intake through hole and an intake damping film replaceably provided to the intake through hole.
The heater 1 is also provided with a power interface, and the power interface is connected with the controller 2 and the power supply 3 and is used for supplying power to the heating cylinder 11.
The control circuit board 26 is connected with the smoking power switch 23 and the mode switch 24.
The power supply 3 includes: the power supply comprises a power supply shell 32, a power supply body 31 positioned in the power supply shell 32, and a connecting piece 33 for connecting the power supply 3 and the controller 2, wherein the connecting piece 33 can be detachably connected with the controller 2 through threaded fit.
A method of controlling the peripheral heated smoking system described above, the method comprising:
the cigarette heating modeling method comprises the following steps: the air inflow entering the heating cylinder 11 is calculated through real-time monitoring of the pressure sensor 4, the heat consumption in the heater 1 is obtained by combining parameters such as the air inflow temperature, the temperature of the heating cylinder 11, the air inflow and the like, and the controller 2 adjusts the working process of the heater 1 according to the heat consumption. The method can adjust the working process of the heater according to the air flow and temperature change, control the heat output, further ensure the stability of the cigarette temperature and improve the heating effect.
The power supply 3 is a built-in power supply, and the power supply 3 is connected to the control circuit 26.
In the embodiment of the invention, the heater 1, the controller 2 and the power supply 3 are all modularized and can be mutually connected into a whole through threads, and any part can be conveniently replaced when damaged.
The peripheral heated smoking system described above can be used to heat tobacco material or compositions containing tobacco material to release a suitable smoke or mist for smoking by a consumer to achieve a sensory experience similar to that of a conventional cigarette.
The efficiency of the heater 1 in raising the temperature directly determines the time for which the smoking system heats the tobacco material to a temperature at which flavour is sufficiently released. Above-mentioned peripheral formula heating smoking system has adopted micro-heater rapid heating technique, far infrared radiation heating technique to combine together, through peripheral formula rapid heating, has reduced preheating time by a wide margin, has reduced the system consumption, has improved heating efficiency, has improved the suction and has experienced. Above-mentioned peripheral formula heating smoking system adopts intelligent control algorithm to guarantee flue gas concentration and suitable temperature, combines the intake damping, has overcome the defect of second-hand cigarette of traditional smoking mode and current electron smoking system, has the characteristics that intensification efficiency is high, intelligent control.
The heater 1 adopted by the embodiment of the invention has the advantages of easy realization, small volume, low cost, firmness and durability.
In order to more specifically explain the present invention, the following three embodiments are given.
Example one
In the first embodiment, the peripheral heating smoking system is composed of three parts, namely a heater 1, a controller 2 and a power supply 3, as shown in an example of fig. 1, wherein the three parts are all in a modular design and are connected with each other through threads.
In the first embodiment, a heating cylinder 11 is disposed in the heater 1, and as shown in fig. 2, the cross section of the heating cylinder 11 is circular. The inner diameter of the heating cylinder 11 is 7.7mm, and the length of the heating cylinder 11 is 20 mm. The heating cylinder 11 is heated by 12 micro heaters 112 with the size of 5mm multiplied by 3mm, the micro heaters 112 use silicon materials as the materials of the dielectric film, and silicon dioxide as the materials of the film protective layer; selecting metal platinum as a material of the film resistor; the thickness of the thin film resistor is 300 nm; the micro-heaters 112 are connected in series or in parallel to achieve simultaneous heating or segmented program heating. The heating temperature of the heating cylinder 11 was 300 ℃.
An infrared heating ceramic cylinder 113 made of high-emissivity ceramic is arranged in a cylinder base body 111 of the heating cylinder 11, the thickness of the infrared heating ceramic cylinder 113 is 0.2mm, and when the micro-heater 112 works, heat is transferred to the infrared heating ceramic cylinder 113 to quickly radiate infrared rays for uniformly heating tobacco materials.
The heating cylinder 11 is used for containing smoke bodies, and a heat insulation layer made of aerogel micro-nano heat insulation materials is arranged between the heating cylinder 11 and the shell 13. The heater 1 is provided with an air inlet 22 and with an air flow adjustment ring; the intake port 22 is composed of an intake through hole and a replaceable intake damping film. The fixed base 13 is provided with a vent hole that communicates with the intake port 22. The heater 1 is also provided with a pressure sensor 4, a first temperature sensor and a second temperature sensor for detecting the air pressure and temperature change in the air flow path and transmitting corresponding signals to the controller 2 for controlling the operation of the peripheral heating smoking system.
The heater 1 is also internally provided with a heater power interface which is connected with the controller 2 and the power supply 3 and used for supplying power to the heating cylinder 11. The controller 2 is internally provided with a control circuit board 26, and a smoking power switch 23 button, a mode switch 24 button, an energizing indicator lamp 27 and a heating indicator lamp 28 which are connected with the control circuit board 26.
The power supply 3 is a built-in power supply, and the power supply 3 is connected to the control circuit board 26.
In the first embodiment, the smoking power button 23, the mode button 24, the full-color energization indicator lamp 27, and the full-color heating indicator lamp 28 are all provided on the controller case 25 of the controller 2.
In the first embodiment, 1 pack 18650 specification of rechargeable batteries is installed inside the power supply 3, the rated voltage of the rechargeable battery is 3.7V, the capacity of the rechargeable battery is 2500mAh, the bottom of the power supply 3 is provided with a main power switch button, the main power switch button is switched on when being pressed, and the power supply is switched off when being pressed again. In order to prevent the main power switch button from being pressed down by squeezing, the bottom of the power supply housing 32 of the power supply 3 is designed with a base which covers the main power switch button and has a receiving structure with a protruding periphery and a depressed middle. The receiving structure receives a main power switch button.
Example two
The peripheral heating smoking system of the embodiment consists of a heater 1, a controller 2 and a power supply 3, and as shown in an example in fig. 1, the three parts are all in modular design and are connected with each other through threads.
The heater 1 is provided with a heating cylinder 11, and as shown in fig. 2, the cross section of the heating cylinder 11 is circular. The inner diameter of the heating cylinder 11 was 7.7mm, and the length of the heating cylinder 11 was 15 mm. The cylinder base 111 is made of high temperature resistant glass, and 12 microheaters 112 of 4mm × 2mm are embedded in the inner wall of the heating cylinder 11. The micro-heater 112 uses a silicon material as a supporting layer and silicon dioxide as a thin film material of a protective layer; silicon carbide is selected as a material of the thin film resistor; the thickness of the thin film resistor is 200 nm; the micro-heaters 112 are connected in series or in parallel to achieve simultaneous heating or segmented program heating. The heating temperature of the heating cylinder 11 was 280 ℃.
As shown in fig. 3, a heat-conducting ceramic cylinder 113 is disposed in the cylinder base 111 of the heating cylinder 11, the thickness of the heat-conducting ceramic cylinder 113 is 0.2mm, a high-emissivity infrared material coating 114 is uniformly coated on the inner wall of the heat-conducting ceramic cylinder 113, the thickness of the infrared material coating 114 is 0.05mm, when the micro-heater 112 operates, heat is transferred to the infrared material coating 114 through the heat-conducting ceramic cylinder 113, and the infrared material coating 114 rapidly radiates infrared rays for uniformly heating the tobacco material.
The heating cylinder 11 contains cigarettes, and a heat insulation layer made of glass fiber cotton is arranged between the heating cylinder 11 and the shell 13. The heater 1 is provided with an air inlet 22 and with an air flow adjustment ring; the intake port 22 is composed of an intake through hole and a replaceable intake damping film. The fixed base 13 is provided with a vent hole that communicates with the intake port 22. The heater 1 is also provided with a pressure sensor 4, a first temperature sensor and a second temperature sensor for detecting the air pressure and temperature change in the air flow path and transmitting corresponding signals to the controller 2 for controlling the operation of the peripheral heating smoking system.
The heater 1 is also provided with a power interface connected with the controller 2 and the power supply 3 and used for supplying power to the heating cylinder 11. The controller 2 is internally provided with a control circuit board 26, and a smoking power switch 23 button, a mode switch 24 button, an energizing indicator lamp 27 and a heating indicator lamp 28 which are connected with the control circuit board 26.
The power supply 3 is a built-in power supply, and the end of the power supply 3 is connected with the control circuit board 26.
The smoking power button 23, the mode button 24, the full-color power-on indicator lamp 27, and the full-color heating indicator lamp 28 of the present embodiment are provided on the controller case 25 of the controller 2.
The power supply 3 is internally provided with 1 section of 18650 rechargeable batteries with rated voltage of 3.7V and capacity of 2500mAh, and a main power switch button is arranged at the bottom and is pressed to switch on the power supply and then to switch off the power supply. In order to prevent the main power switch button from being pressed down due to extrusion, the bottom of the outer shell of the power supply 3 is designed with a base which is covered outside the main power switch button, and the base is provided with a containing structure which is protruded at the periphery and is sunken in the middle. The receiving structure receives a main power switch button.
EXAMPLE III
The peripheral heating smoking system of the embodiment consists of a heater 1, a controller 2 and a power supply 3, and as shown in an example in fig. 1, the three parts are all in modular design and are connected with each other through threads.
A heating cylinder 11 is arranged in the heater 1, and as shown in fig. 2, the cross section of the heating cylinder 11 is circular. The inner diameter of the heating cylinder 11 was 7.7mm, and the length of the heating cylinder 11 was 20 mm. The heating cylinder 11 adopts a combination mode of micro-heater and far infrared heating, namely the heating cylinder 11 is formed by combining two semi-cylinders. One of the semi-cylinders adopts a far infrared heating mode, namely is made of metal heating materials of tungsten, heat-conducting ceramic and far infrared ceramic glaze; the other half cylinder adopts a micro-heater 112 mode, 8 micro-heaters 112 with the diameter of 3mm multiplied by 3mm are uniformly covered on the inner wall, the micro-heaters 112 use silicon materials as supporting layers, silicon dioxide as thin film materials of protective layers, metal tungsten is selected as thin film resistance materials, and the micro-heaters 112 are connected in series or in parallel, so that the functions of simultaneous heating or segmented program heating can be realized. The heating temperature of the heating cylinder 11 was 250 ℃.
The heating cylinder 11 is used for accommodating cigarettes, and a heat insulation layer made of aerogel micro-nano heat insulation materials is arranged between the heating cylinder 11 and the shell 13. The heater 1 is provided with an air inlet 22 and with a gas flow regulating ring; the intake port 22 is composed of an intake through hole and a replaceable intake damping film. The fixed base 13 is provided with a vent hole that communicates with the intake port 22. The heater 1 is also provided with a pressure sensor 4, a first temperature sensor and a second temperature sensor for detecting the air pressure and temperature change in the air flow path and transmitting corresponding signals to the controller 2 for controlling the operation of the peripheral heating smoking system.
The heater 1 is also provided with a power interface connected with the controller 2 and the power supply 3 and used for supplying power to the heating cylinder 11. The controller 2 is internally provided with a control circuit board 26, and a smoking power switch 23 button, a mode switch 24 button, an energizing indicator lamp 27 and a heating indicator lamp 28 which are connected with the control circuit board 26.
The power supply 3 is a built-in power supply, and the end of the power supply 3 is connected to the control circuit board 26.
The smoking power button 23, the mode button 24, the full-color power-on indicator lamp 27, and the full-color heating indicator lamp 28 are provided on the controller case 25 of the controller 2.
The power supply 3 is internally provided with 1 section of 18650 rechargeable batteries with rated voltage of 3.7V and capacity of 2500mAh, and a main power switch button is arranged at the bottom and is pressed to switch on the power supply and then to switch off the power supply. In order to prevent the main power switch button from being pressed down due to extrusion, the bottom of the outer shell of the power supply 3 is designed with a base which is covered outside the main power switch button, and the base is provided with a containing structure which is protruded at the periphery and is sunken in the middle. The receiving structure receives a main power switch button.
A control system for a peripheral heated smoking system, the control system for the peripheral heated smoking system comprising: the device comprises a first acquisition module, a first temperature sensor, a second acquisition module and a first control module.
The first acquiring module is used for detecting the speed and the air intake amount of the intake air flow of the heater 1, the first temperature sensor is used for detecting the first temperature of the intake air flow of the heater 1, and the second temperature sensor is used for detecting the second temperature in the heating cylinder 11 of the heater 1; the second obtaining module is used for obtaining the heat consumption according to the air intake quantity, the first temperature and the second temperature; the first control module is used to control the heat output of the heater 1.
Specifically, the heat consumption amount refers to the amount of heat required for the air having the intake air amount to rise from the first temperature to the second temperature. This calculation method is well known to those skilled in the art and will not be described herein.
The first control module includes: a first control unit, a second control unit, and a third control unit; wherein, if the intake air flow speed is greater than the preset speed or the intake air amount is greater than the preset intake air amount, the first control unit is used for controlling the heat output of the heater 1 to increase; if the flow speed of the inlet air is not changed within a preset time period, the first control unit is used for controlling the heater 1 to stop outputting heat; if the second temperature is higher than the preset temperature, the second control unit is used for controlling the heat output of the heater 1 to be reduced; if the second temperature is within the set temperature range and the heat consumption is not greater than the preset consumption, the third control unit is used for controlling the heater 1 to maintain the current heat output; the maximum value of the set temperature range is less than or equal to the preset temperature.
Specific values of the preset speed, the preset air intake amount, the set temperature range and the preset temperature are set according to actual needs, and the specific values are not limited in the embodiment of the invention.
Compared with the prior art that the heat output of the heater 1 is controlled according to the smoke body temperature, the control hysteresis is reduced, the control reliability is effectively improved, and the heating effect of the heater 1 is improved.
Preferably, the control system of the electrically heated smoking system further comprises: the system comprises a third acquisition module, a fourth acquisition module and a second control module; wherein the content of the first and second substances,
the third acquisition module is used for acquiring smoke release amount according to smoke body data in the heater 1, the fourth acquisition module is used for acquiring residual smoke amount of the smoke body according to the smoke release amount and heat consumption amount, and the second control module is used for controlling the heater 1 to stop heating when the residual smoke amount is smaller than a preset value.
Specifically, the smoke volume data includes: the weight of the body and/or the size of the body located within the heater 1. Taking a cigarette body as an example, the dimensions of the cigarette comprise: the diameter of the cigarette and the length of the cigarette. The preset value may be zero or a value greater than zero, and is designed according to needs in the actual application process, which is not limited in the embodiment of the present invention.
And establishing the association between the smoke volume data and the smoke release amount through an earlier stage experiment. The corresponding relation between the cigarette body data and the smoke release amount can be stored in advance, or the cigarette body data and the smoke release amount corresponding to the cigarette body data can be directly stored, and the data can be directly read.
The residual smoke amount refers to the heat which can be continuously consumed and the residual amount of the smoke which can release the smoke is obtained by calculating the heat consumption and judging the sufficient heating degree of the smoke. And judging whether the smoke body is heated fully and released completely according to the residual amount of the smoke, then stopping heating, and finishing smoking.
The acquisition of the intake air amount of the heater 1 may be obtained by detecting with a flow sensor, or may be obtained by other methods, and in order to improve the accuracy, the first acquisition module includes: a pressure sensor 4, a first calculation unit, and a second calculation unit; wherein the content of the first and second substances,
the pressure sensor 4 is used for detecting the air pressure of the intake air flow of the heater 1, and the first calculation unit is used for calculating the air flow speed of the intake air flow according to the change of the air pressure within a preset time; the second calculation unit is used to calculate the intake air amount of the heater 1 from the suction time, the airflow passage cross-sectional area, and the airflow speed.
It is understood that the pumping time may be calculated according to the air pressure change detected by the flow sensor, or may be set according to actual needs, which is not limited in the embodiment of the present invention.
The first temperature sensor and the pressure sensor 4 are both arranged at the air inlet of the heater 1, the second temperature sensor is arranged in the heating cylinder 11, the specific position is determined according to the actual situation, and the embodiment of the invention does not limit the specific position;
furthermore, the precision of the first temperature sensor and the precision of the second temperature sensor are both less than 1 ℃, and the precision of the pressure sensor 4 is better than 0.02%.
Preferably, the control system of the electrically heated smoking system further comprises:
the smoking power switch 23 is used for controlling the on-off of the heater 1 and the power supply and the on-off of the controller 2 and the power supply;
a mode switch 24 for controlling a heating mode of the heater 1;
a power-on indicator lamp 27 for displaying the operating state of the power supply;
a heating indicator lamp 28 for displaying a heating state of the heater 1;
the third control module is used for controlling the heating indicator lamp 28 to continuously light after the heater 1 is heated to the preset temperature so as to prompt a user to suck;
a fourth control module, which is used for controlling the power-on indicator lamp 27 to continuously light after the heater 1 and the power supply 3 are switched on and the controller 2 and the power supply 3 are switched on;
a fifth control module for controlling the heating indicator light 28 to flash after the mode switch 24 is turned on;
and the sixth control module is used for controlling the power-on indicator lamp 27 to flash after the power supply is cut off.
For convenience of arrangement and simplification of the structure, the first control module, the second control module, the third control module, the fourth control module, the fifth control module and the sixth control module are integrated on the control circuit board 26.
In order to improve the safety and reliability, the smoking power switch 23 is a button switch, and when the smoking power switch 23 is pressed for N times, the heater 1 and the power supply 3 are switched on, and the controller 2 and the power supply 3 are switched on; wherein N is more than or equal to 2.
Specifically, the control flow of the control system of the electrical heating smoking system is as follows:
1) the button 23 of the smoking power switch is pressed for 3 times, the control circuit board 26 is connected with the built-in power supply of the power supply 3, the power-on indicator lamp 27 is turned on, and the electric heating smoking system enters a selection state;
2) pressing the button of the mode switch 24, flashing the heating indicator light 28 (blue-green conversion), selecting a heating gear, and continuously lighting the heating indicator light 28 (not flashing any more) after heating to the set temperature to prompt a user to suck;
3) in the smoking process, the control system calculates the residual smoke amount and intelligently controls heat output according to the cigarette data through the detection data of the gas pressure sensor 4 and the temperature sensor 5 until the smoking of the cigarettes is finished;
4) when the smoking of the cigarette is finished, the power supply 3 is automatically cut off, and the power-on indicator lamp 27 flickers for indication.
The power supply is a rechargeable battery; the power is equipped with total switch button, and the power still includes: the base is connected with the outer shell of the power supply and is covered outside the main power supply switch button.
The power supply 3 is internally provided with 1 section of 18650 specification rechargeable batteries with rated voltage of 3.7V and capacity of 2500 mAh.
As shown in fig. 4, the control circuit board 26 may be a single chip microcomputer 10, the mode switch 24, the smoking power switch 23, the gas pressure sensor 4, the temperature sensor 5 (including a first temperature sensor and a second temperature sensor), and the battery capacity detection module 9 are all in signal connection with the single chip microcomputer 10, the single chip microcomputer 10 is in signal connection with the heater 1 through a power MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor)8, the heater 1 is in signal connection with the hysteresis comparator 7 through an operational amplifier 6, and the hysteresis comparator 7 is in signal connection with the single chip microcomputer 10.
The electric heating smoking system applied to the control system of the electric heating smoking system can be designed and selected according to actual needs, and the embodiment of the invention does not limit the application range of the control system and also does not limit the electric heating smoking system.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (12)
1. A peripheral heated smoking system comprising a heater, wherein,
the heater includes: a heater housing, a heater cartridge located within the heater housing; wherein the heating cartridge comprises: the micro-heater is arranged on the cylinder base body; the heating cylinder is an infrared heating cylinder;
the heating cartridge further comprises: the infrared material coating is sprayed or printed on the inner wall of the heat-conducting ceramic cylinder; wherein the micro heater is embedded in the inner wall of the cylinder base body;
utilizing heat generated by the micro-heater as a heat source of the infrared material coating;
peripheral heating is carried out simultaneously by utilizing the micro heater and an infrared heating mode;
the number of the micro heaters is at least two, the micro heaters are connected in a parallel connection mode, and the heaters realize segmented heating;
the peripheral heated smoking system further comprises a control system comprising:
the first acquisition module is used for detecting the air inlet flow speed and the air inlet amount of the heater;
a first temperature sensor for detecting a first temperature of an intake air flow of the heater;
a second temperature sensor for detecting a second temperature in a heating cylinder of the heater;
the second obtaining module is used for obtaining the heat consumption according to the air intake amount, the first temperature and the second temperature;
a first control module for controlling heat output of the heater;
wherein the first control module comprises:
a first control unit for controlling the heat output of the heater to increase if the intake airflow speed is greater than a preset speed or the intake air amount is greater than a preset intake air amount; if the airflow speed of the inlet air is not changed in a preset time period, the heater is controlled to stop outputting heat;
a second control unit for controlling the heat output of the heater to be reduced if the second temperature is higher than a preset temperature;
the third control unit is used for controlling the heater to maintain the current heat output if the second temperature is within a set temperature range and the heat consumption is not greater than the preset consumption;
the maximum value of the set temperature range is less than or equal to the preset temperature;
the control system further comprises:
the third acquisition module is used for acquiring the smoke release amount according to the smoke volume data in the heater;
the fourth acquisition module is used for acquiring the residual smoke amount of the smoke body according to the smoke release amount and the heat consumption amount;
and the second control module is used for controlling the heater to stop heating when the residual flue gas amount is less than a preset value.
2. The peripherally heated smoking system of claim 1, wherein the microheater comprises: the thin film resistor serves as a heat source, the dielectric film mechanically supports the thin film resistor, and the thin film protective layer covers the thin film resistor;
the thin film resistor is manufactured on the surface of the dielectric thin film by utilizing a photoetching process.
3. The peripherally heated smoking system of claim 2, wherein the thin-film resistor is formed as a loop of electrically conductive material.
4. The peripherally heated smoking system of claim 2, wherein the thin-film resistor is formed by connecting in parallel at least two loops of electrically conductive material.
5. Peripheral heated smoking system according to claim 2,
the dielectric film is made of one or a composite material consisting of at least two of silicon, silicon oxide, silicon nitride and silicon carbide, the film protection layer is made of one or a composite material consisting of at least two of silicon, silicon oxide, silicon nitride and silicon carbide, and the temperature resistance temperature of the dielectric film and the film protection layer is not less than 600 ℃;
the thin film resistor is made of a polycrystalline silicon semiconductor, a silicon carbide semiconductor, a diffused silicon semiconductor, platinum, tungsten or nichrome, and the temperature resistance of the thin film resistor is not less than 650 ℃.
6. The peripheral heating smoking system of claim 1, wherein the thermally conductive ceramic cylinder has a thickness of 0.05-0.8 mm and the infrared material coating has a thickness of 0.01-0.2 mm.
7. The peripherally heated smoking system of claim 1, wherein the cartridge heater is circular or regular polygonal in cross-section.
8. The peripherally heated smoking system of claim 1, wherein the length ratio of the cartridge heater to the heater is 5-10: 10.
9. the peripherally heated smoking system of claim 1, wherein the cartridge heater has a thickness of 0.5mm to 2 mm.
10. The peripheral heated smoking system of claim 1, wherein the control module of the peripheral heated smoking system is coupled to the heater via a coupling element, the coupling element having an air inlet in communication with the heater cartridge, the air inlet having an air flow regulator disposed therein; the air inlet is a damped air inlet, the damped air inlet comprising: and the air inlet through hole is arranged on the air inlet damping film of the air inlet through hole in a replaceable manner.
11. The peripherally heated smoking system of any one of claims 1-10, wherein the control system further comprises:
the smoking power switch is used for controlling the on-off of the heater and the power supply and the on-off of the controller and the power supply;
a mode switch for controlling a heating mode of the heater;
the power-on indicator light is used for displaying the working state of the power supply;
a heating indicator light for displaying a heating state of the heater;
the third control module is used for controlling the heating indicator lamp to continuously light up after the heater is heated to the preset temperature so as to prompt a user to suck;
the fourth control module is used for controlling the power-on indicator lamp to continuously light after the heater and the power supply are switched on and the controller and the power supply are switched on;
the fifth control module is used for controlling the heating indicator lamp to flicker after the mode switch is turned on;
and the sixth control module is used for controlling the power-on indicator lamp to flicker after the power supply is cut off.
12. The peripherally heated smoking system of claim 11, wherein the first capture module comprises:
a pressure sensor for detecting an air pressure of an intake air flow of the heater;
a first calculation unit configured to calculate an airflow velocity of the intake airflow based on a change in the air pressure within a preset time;
a second calculation unit for calculating an intake air amount of the heater based on the suction time, the airflow passage cross-sectional area, and the airflow speed.
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| CN201710060846.8A CN108338415B (en) | 2017-01-25 | 2017-01-25 | Peripheral heating smoking system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710060846.8A CN108338415B (en) | 2017-01-25 | 2017-01-25 | Peripheral heating smoking system |
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| CN108338415A CN108338415A (en) | 2018-07-31 |
| CN108338415B true CN108338415B (en) | 2022-05-31 |
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