WO2018218397A1 - Smoking system and smoking apparatus thereof - Google Patents

Abstract

Provided is a smoking apparatus (100) comprising a housing (120) and a heating pan (140); the housing (120) is provided with an accommodating chamber and an air inlet (122) in communication with said accommodating chamber. The heating pan (140) is arranged inside the accommodating chamber. The heating pan (140) comprises a plurality of heating elements (142) connected in sequence; each heating element (142) is provided with a heating chamber (142a); the heating chambers (142a) of the plurality of heating elements (142) form an accommodating chamber (144) used for accommodating a smoking product (200). The two ends of the accommodating chamber (144) are each provided with an insert hole (146) used for inserting the smoking product (200), and an air inlet hole (148) in communication with the air inlet (122). The temperatures of the plurality of heating elements (142) are independently controlled, and the heating elements (142) heat the smoking product (200) in the direction from the insert hole (146) to the air inlet hole (148).

Description

Smoking system and smoking device

[Technical Field]

The invention relates to the technical field of smoking articles, in particular to a smoking system and a smoking device thereof.

【Background technique】

Traditional cigarettes have been in the mainstream of tobacco consumption for more than 100 years. With the changes in people's lifestyles and consumption concepts, the rapid advancement of science and technology, and the accelerating speed of commodity upgrading, the needs and concerns of tobacco consumers are constantly changing. At the same time, they are influenced by factors such as tobacco control and public opinion. Traditional cigarettes The development of the new type of cigarette has become inevitable.

Electric heating low temperature cigarettes are low temperature cigarettes that use electricity as a heat source to heat tobacco material and produce nicotine smoke. Conventional electrically heated cryogenic cigarettes have a lower total particulate phase during initial aspiration, but tend to increase gradually until eventually, giving the consumer a feeling of increasing smoke intensity. When the heating chamber is sucked by the integrated heating method, the flue gas starts to be extremely weak, and then rises rapidly, and then the amount of flue gas decreases significantly as the number of suction ports increases. This is mainly because it uses the first few suctions to reach the optimum temperature, so that the tobacco product produces a high concentration of aerosol, but as the suction progresses, the aerosol is depleted. Compared with conventional cigarettes, the amount of smoke released is uncontrollable, and the sensory difference between the different suction ports is large. At the late stage of smoking, the sensory characteristics tend to decrease.

[Summary of the Invention]

Based on this, it is necessary to provide a smoking system and a smoking device in which the amount of smoke released during the suction process is relatively uniform.

A smoking device for heating a smoking article, the smoking device comprising: a housing having a receiving cavity and an air inlet communicating with the receiving cavity; and a heating pot disposed in the receiving cavity The heating pot includes a plurality of heating elements connected in series, each heating element is provided with a heating chamber, and the heating chambers of the plurality of heating elements form a receiving cavity for accommodating the smoking article; Two ends of the accommodating cavity are respectively provided with an insertion port for inserting the smoking article and an air inlet hole communicating with the air inlet; a plurality of the heating elements independently control temperature, and from the insertion port to the inlet The direction of the vents sequentially heats the smoking article.

A smoking system comprising a smoking article and the smoking device; the smoking article comprising a tobacco rod and a cigarette holder, one end of the tobacco rod being connected to the mouthpiece; the tobacco rod being inserted into the receiving cavity The tobacco rod includes a plurality of tobacco segments connected in series, and the plurality of tobacco segments are in one-to-one correspondence with the plurality of heating elements.

Details of one or more embodiments of the invention are set forth in the accompanying drawings and description below. Other features, objects, and advantages of the invention will be apparent from the description and appended claims.

[Description of the 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 embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only It is a certain embodiment of the present invention, and those skilled in the art can obtain drawings of other embodiments according to the drawings without any creative work.

Figure 1 is a schematic illustration of a smoking system in an embodiment;

Figure 2 is a schematic view of a smoking device in the smoking system of Figure 1;

Figure 3 is a schematic illustration of a smoking system in another embodiment;

Figure 4 is a schematic view of a smoking article in the smoking system of Figure 3;

Figure 5 is a schematic illustration of a smoking article of another embodiment of the smoking system of Figure 3;

Figure 6 is a schematic illustration of the container and phase change material in the smoking system of Figure 3.

 【detailed description】

In order to facilitate the understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Preferred embodiments of the invention are given in the drawings. However, the invention may be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and comprehensive.

All technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, unless otherwise defined. The terminology used in the description of the present invention is for the purpose of describing particular embodiments and is not intended to limit the invention. The term "and/or" used herein includes any and all combinations of one or more of the associated listed items.

As shown in FIG. 1, the smoking system 10 of an embodiment includes a smoking device 100 and a smoking article 200 for heating the smoking article 200. The smoking device 100 heats the smoking article 200 within a certain temperature range, and controls the smoking article 200. Burning, nicotine and some tobacco aroma components can be transferred to the smoke for smoking, which can greatly reduce the release of tar and harmful components.

Referring to FIG. 2, the smoking device 100 includes a housing 120 and a heating pot 140. The housing 120 is provided with an accommodating cavity and an air inlet 122 communicating with the accommodating cavity. The heating pot 140 is disposed in the housing chamber. The heating pot 140 includes a plurality of heating elements 142 that are sequentially connected. In one embodiment, the heating elements 142 may be ceramic structures provided with heating circuits, and the number of heating elements 142 may be 2-15. Each heating element 142 is provided with a heating chamber 142a, and the heating chamber 142a of the plurality of heating elements 142 forms a receiving cavity 144 for accommodating the smoking article 200. The two ends of the accommodating cavity 144 are respectively provided with an insertion port 146 for inserting the smoking article 200 and an air inlet hole 148 for communicating with the air inlet 122. The plurality of heating elements 142 independently control the temperature and sequentially heat the smoking article 200 from the insertion port 146 to the direction of the air intake holes 148.

Since the plurality of heating elements 142 of the heating pot 140 independently control the temperature and sequentially heat from the insertion port 146 to the air inlet holes 148, the smoking article 200 can be sequentially heated from the end of the mouthpiece 240 toward the direction away from the mouthpiece 240. The high-concentration aerosol generated during the whole heating is avoided, and the amount of smoke released during the suction process is relatively uniform, thereby balancing the sensory difference between the different suction ports and improving the consistency of the smoke mouth.

In addition, if the heating order of the smoking article 140 to the smoking article 200 is reversed from that of the present embodiment, i.e., sequentially from one end of the smoking article 200 toward the mouthpiece 240, the airflow through the heated tobacco segment 242 has a higher temperature. , which will heat the tobacco section 242 flowing behind, so that some of the flue gas components in the unheated tobacco section 242 are sublimated or the pyrolysis component having a lower decomposition temperature is released, so that the tobacco section is heated in advance and then heated. The portion of the flue gas component of 242 results in inconsistent flue gas mouthfeel when the final different tobacco segments 242 are heated. At the same time, premature heating of the unheated portion of the cigarette can result in partial smoke or thermal degradation of the portion of the cigarette due to heat, changing its own quality. Reheating a previously heated area can result in an unpleasant odor or harmful component. In this embodiment, the heated airflow does not flow through the unheated tobacco section 242 in a manner from the end of the mouthpiece 240 to the direction away from the mouthpiece 240, thereby avoiding the inconsistency and unpleasantness of the smoke. Odor or harmful ingredients.

In one embodiment, the smoking device 100 generally also includes a power supply assembly 160 that powers the heating pot 140. The power supply assembly 160 can be coupled to the housing 120 outside of the housing 120. In other embodiments, the power supply assembly 160 can also be located. The inside of the housing 120. Or the smoking device 100 itself does not have the power supply assembly 160, and the smoking device 100 is detachably connected to the external power supply assembly 160 to supply power to the heating pot 140.

In order to more accurately control and monitor the temperature of the heating pot 140, in one embodiment, the heating pot 140 further includes a plurality of temperature sensors 152, each of which is provided with at least one temperature sensor 152. In one embodiment, the heating pot 140 further includes a thermal insulation gasket 154 between the adjacent heating elements 142 to avoid heat conduction between the heating elements 142.

In an embodiment, the smoking device 100 can further include a controller disposed within the housing chamber for controlling independent powering of the plurality of heating elements 142. The temperature sensor 152 can be in communication with the controller, and the controller can power the heating element 142 based on the temperature control tested by the temperature sensor 152 to more accurately adjust the temperature of the heating element 142.

The heating temperature of the heating element 142 is generally 200 ° C to 500 ° C, and the nicotine and most tobacco aroma components can be transferred to the flue gas at 200-500 ° C. If the temperature is too high, the harmful gas or the smoking article 200 is easily generated. Further, in an embodiment, the heating element 142 has a heating temperature of 200 ° C to 350 ° C. The lower temperature control, on the one hand, is conducive to safe control and avoids burns. On the other hand, nicotine and tobacco aroma components can be released at a relatively smooth speed, and the taste of the food is better.

In one of the embodiments, a preheating passage 156 is formed between the inner wall of the housing 120 and the outer wall of the heating pot 140. One end of the preheating passage 156 communicates with the intake port 122, and the other end communicates with the intake port 148. Referring to the arrow in FIG. 1, when smoking the smoking article 200, the external air enters the preheating passage 156 from the air inlet 122, is preheated by the outer wall of the heating pot 140, and then enters the accommodating chamber 144 through the air inlet hole 148. Enter the smoking article 200. The preheating passage 156 is designed to reduce the temperature of the outer wall of the heating pot 140, thereby reducing the temperature of the housing 120 and preventing hot hands. On the other hand, the heat of the heating pot 140 can be utilized efficiently to avoid energy waste.

In one embodiment, the housing 120 is tubular in shape, the heating element 142 can also be in a circular tubular shape, the smoking article 200 can be more evenly heated, and the air inlet 122 and the insertion opening 146 are both located at one end opening of the housing 120. Further, in the embodiment in which the smoking device 100 is provided with the power supply assembly 160, the power supply assembly 160 can be located at the other end of the housing 120, and the overall structure is arranged more rationally, which is convenient for holding and using.

In the embodiment shown in FIG. 1, the smoking article 200 may be a commercially available cigarette, while referring to FIG. 3 and FIG. 4, in another embodiment, the smoking article 200 includes a tobacco rod 220 and a mouthpiece 240, the tobacco rod 220 One end is connected to the mouthpiece 240. The tobacco rod 220 is inserted into the accommodating cavity 144. The tobacco rod 220 includes a plurality of tobacco segments 242 connected in series, and the plurality of tobacco segments 242 are in one-to-one correspondence with the plurality of heating elements 142. The tobacco segment 242 corresponds to the heating element 142. The plurality of tobacco segments 242 cooperate with a plurality of independently controlled temperature heating elements 142 to facilitate control of the temperature of the different tobacco segments 242. The composition of each tobacco segment 242 can also be adjusted as needed to provide a better mouthfeel.

In one embodiment, the tobacco segment 242 includes a tobacco material 244 and a phase change material 246 disposed in the tobacco material 244. Since the phase change material 246 absorbs a large amount of heat or releases a large amount of heat during the phase change process, it can delay the temperature rise and fall, and can prevent the temperature from rising or falling too fast, thereby enabling better control of the smoking article 200. temperature.

In one embodiment, the smoking article 200 further includes a thermal barrier layer 260 between the adjacent two tobacco segments 242, and an insulation between each two adjacent tobacco segments 242. Layer 260 prevents heat transfer between the tobacco segments 242 from affecting each other. Further, in an embodiment, the heat insulating layer 260 may also be located between the mouthpiece 240 and the tobacco segment 242 connected to the mouthpiece 240 to prevent heat from being conducted to the mouthpiece 240. Referring to FIG. 4, in another embodiment, the adjacent tobacco segments 242 can be directly connected without the heat insulation layer 260, and the consistency of the smoke mouth feeling can be improved and the temperature rise or the excessive decrease can be avoided. .

In order to prevent the phase change material 246 from being drawn into the mouth after melting, while referring to FIG. 5, in one embodiment, the smoking article 200 may further include a receptacle 280 for receiving the phase change material 246, the phase change material 246 being located within the receptacle 280 Further, the container 280 is a heat conductive material having a melting point generally higher than or equal to 500 ° C. The melting point of the container 280 needs to be higher than the heating temperature of the heating element 142. In an embodiment, the material of the container 280 is aluminum foil. The container 280 has good thermal conductivity to facilitate uniformization of heat within the tobacco section 242. The shape of the receptacle 280 can be similar to a capsule, and the phase change material 246 is wrapped within the receptacle 280. In one embodiment, the number of containers 280 is plural, and a plurality of containers 280 are evenly distributed in the tobacco 244 of each tobacco segment 242 to facilitate uniformization of heat within the tobacco segment 242.

The phase change material 246 may be in the form of particles or filaments or the like. In one embodiment, the phase change material 246 has a solid-liquid phase change temperature of 200 ° C to 500 ° C. When the heating element 142 heats the phase change material 246 to a solid-liquid phase change temperature, the phase change material 246 melts, and the phase change material 246 absorbs a large amount of heat during the phase change process, thereby preventing the temperature from rising too fast. When the temperature of the phase change material 246 is lower than the solid-liquid phase change temperature, the phase change material 246 solidifies, and the phase change material 246 emits a large amount of heat during the phase change process, thereby preventing the temperature from being lowered too fast. In an embodiment, the phase change temperature of the phase change material 246 can also be selected between 240 ° C and 350 ° C. For example, phase change material 246 may be, for example, sodium nitrate NaNO _3.

In one embodiment, the composition of the tobacco 244 in the plurality of tobacco segments 242 is different. The composition of each tobacco segment 242 can be adjusted as needed to provide a better mouthfeel. For example, different tobacco segments 242 use different types of tobacco 244 to change the flavor and flavor during the smoking process, enriching the smoking experience. In one embodiment, the proportion of tobacco components contained in the tobacco material 244 of the plurality of tobacco segments 242 that are capable of producing a lower decomposition temperature component is gradually reduced from an end adjacent the mouthpiece 240 toward the mouthpiece 240. . Since the smoke generated by the tobacco section 242 away from the mouthpiece 240 flows through the tobacco section 242 near the mouthpiece 240, the tobacco section 242 near the mouthpiece 240 has already released the smoke, but after the subsequent entry of a certain amount of heat. There is still a small amount of low-temperature decomposition flue gas released. Therefore, the proportion of the components is gradually decreased from the end closer to the mouthpiece 240 toward the mouthpiece 240, which is more conducive to improving the consistency of the mouthfeel of the smoke.

The technical features of the above-described embodiments may be arbitrarily combined. For the sake of brevity of description, all possible combinations of the technical features in the above embodiments are not described. However, as long as there is no contradiction between the combinations of these technical features, All should be considered as the scope of this manual.

The above-described embodiments are merely illustrative of several embodiments of the present invention, and the description thereof is more specific and detailed, but is not to be construed as limiting the scope of the invention. It should be noted that a number of variations and modifications may be made by those skilled in the art without departing from the spirit and scope of the invention. Therefore, the scope of the invention should be determined by the appended claims.

Claims (13)

A smoking device for heating a smoking article, the smoking device comprising: a housing having a receiving cavity and an air inlet communicating with the receiving cavity; a heating pot disposed in the accommodating chamber; the heating pot comprising a plurality of heating elements connected in series, each heating element having a heating chamber, the heating chambers of the plurality of heating elements being formed to accommodate the a receiving cavity of the smoking article; the two ends of the receiving cavity are respectively provided with an insertion opening for inserting the smoking article and an air inlet opening communicating with the air inlet; the plurality of heating elements independently control the temperature, and The smoking article is sequentially heated from the insertion port to the direction of the intake hole. The smoking device of claim 1 wherein said heating pan further comprises a plurality of temperature sensors, each of said heating elements being provided with at least one temperature sensor. The smoking device of claim 1 wherein said heating pan further comprises an insulating gasket positioned between adjacent ones of said heating elements. The smoking device according to claim 1, wherein the heating element has a heating temperature of 200 ° C to 500 ° C. The smoking device according to claim 4, wherein the heating element has a heating temperature of 200 ° C to 350 ° C. The smoking device according to claim 1, wherein a preheating passage is formed between an inner wall of the casing and an outer wall of the heating pot, and one end of the preheating passage communicates with the air inlet, and One end communicates with the air inlet hole. The smoking device according to claim 6, wherein said housing has a circular tubular shape, and said air inlet and said insertion opening are both located at one end opening of said housing. The smoking device of claim 7 further comprising a power supply assembly, said power supply assembly being located at the other end of said housing, said power supply assembly for powering said heating pot. The smoking device of claim 1 further comprising a controller disposed within said housing chamber, said controller for controlling independent powering of said plurality of said heating elements. A smoking device according to claim 1 wherein said heating element is in the form of a circular tube. A smoking device according to claim 1 wherein said heating element is a ceramic structure provided with a heating circuit. The smoking device according to claim 1, wherein the number of the heating elements is 2-15. A smoking system that includes: a smoking article comprising a tobacco rod and a mouthpiece, one end of the tobacco rod being coupled to the mouthpiece; the tobacco rod comprising a plurality of tobacco segments connected in series; The smoking device according to any one of claims 1 to 12, wherein the tobacco rod is inserted into the accommodating chamber, and the plurality of tobacco segments are in one-to-one correspondence with the plurality of heating elements.