WO2019010680A1

WO2019010680A1 - Low-temperature non-burning smoking set

Info

Publication number: WO2019010680A1
Application number: PCT/CN2017/092827
Authority: WO
Inventors: 陈家太; 李洪强
Original assignee: 深圳市赛尔美电子科技有限公司
Priority date: 2017-07-13
Filing date: 2017-07-13
Publication date: 2019-01-17

Abstract

A low-temperature non-burning smoking set (10), comprising a nozzle assembly (100), a heating assembly (200), a sleeve (300) and a base (400). The nozzle assembly (100) is provided internally with a cigarette passage (110) and an air inlet passage (120), the cigarette passage (110) being in communication with the air inlet passage (120), the cigarette passage (110) being used for inserting a cigarette (20). The heating assembly (200) is fixedly connected to the nozzle assembly (100), and an air outlet passage (210) is provided in the heating assembly (200), the air outlet passage (210) being in communication with the cigarette passage (110). The sleeve (300) is sleeved on the heating assembly (200) and is fixedly connected to the nozzle assembly (100). An air inlet cavity (310) is formed between the sleeve (300) and the heating assembly (200), the air inlet cavity (310) being in communication with the air inlet passage (120) and the air outlet passage (210). The base (400) is fixedly connected to the sleeve (300) and the heating assembly (200), respectively, and the base (400) is used for sealing the air inlet cavity (310).

Description

Low temperature non-burning smoking set

Technical field

The invention relates to the technical field of smoking articles, in particular to a low temperature non-burning smoking article.

Background technique

The general low-temperature non-burning smoking article uses the heating non-combustion technology to directly heat the tobacco, and the tobacco does not burn to generate smoke during the heating process. By smoking at a low temperature, smoking can not only satisfy the satisfaction of smoking tobacco, but also reduce the generation of harmful substances during smoking.

The low temperature non-combustion smoking article is generally provided with an air inlet chamber for introducing air. During the smoking process, air flows into the low-temperature non-burning smoking article through the air inlet chamber, and after being heated, it flows into the tobacco and is then inhaled into the human body. Since the air inlet chamber is directly in contact with the ambient air, dust, water vapor, tar and water vapor mixture are easily deposited on the inner wall of the air inlet chamber, which is difficult to clean.

Summary of the invention

Based on this, it is necessary to provide a low temperature non-burning smoking article.

A low temperature non-burning smoking article for baking a cigarette, the low temperature non-burning smoking article comprising:

a nozzle assembly, the nozzle assembly is provided with a cigarette passage and an intake passage, the cigarette passage is in communication with the intake passage, the cigarette passage is for inserting the cigarette, and an inner diameter of the cigarette passage is The outer diameter of the cigarette is matched, and the extending direction of the air inlet passage is the same as the extending direction of the cigarette;

a heating assembly fixedly coupled to the nozzle assembly, the heating assembly having an air outlet passage therein, the outlet passage communicating with the cigarette passage, the cigarette being able to pass through the cigarette passage and inserted into the outlet passage When the cigarette is received in the cigarette passage, the outer wall of the cigarette can separate the inlet passage from the outlet passage;

a sleeve sleeved on the heating assembly and fixedly coupled to the nozzle assembly; the sleeve and The heating assembly is encircled as an intake chamber, and the intake chamber is respectively connected to the intake passage and the outlet passage; and

A base is fixedly coupled to the sleeve and the heating assembly, respectively, the base is for closing the air inlet chamber.

In the above low temperature non-burning smoking article, the cigarette can be inserted into the cigarette passage of the nozzle assembly of the low temperature non-burning smoking article, and baked in the outlet passage of the heating assembly. Since the inner diameter of the cigarette passage is adapted to the outer diameter of the cigarette, when the cigarette is contained in the cigarette passage, the outer wall of the cigarette can separate the inlet passage from the outlet passage, and the ambient air can enter from the top of the low-temperature non-burning smoking article. Through the intake passage, it then enters the intake chamber and is heated in the body of the smoking article to bake the cigarette. Since the heated air is circulated in the cigarette, the ambient air in the intake passage can be heated by the heat of the outer surface of the cigarette, so that the water vapor and volatile substances in the ambient air evaporate in time to prevent water vapor and volatile substances. It enters the intake chamber to effectively keep the intake chamber dry and clean.

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 perspective view of a low temperature non-combustion smoking article in an embodiment;

Figure 2 is a plan view of the low temperature non-combustion smoking article shown in Figure 1;

Figure 3 is a cross-sectional view of the low temperature non-combustion smoking article of Figure 2 taken along line A-A;

Figure 4 is a cross-sectional view of the low temperature non-combustion smoking article of Figure 3 with a cigarette;

Figure 5 is a cross-sectional view of the low temperature non-combustion smoking article shown in Figure 2 taken along line B-B

Figure 6 is an exploded view of the low temperature non-combustion smoking article shown in Figure 1;

Figure 7 is a perspective view of the nozzle member of the low temperature non-combustion smoking article shown in Figure 6;

Figure 8 is a perspective view of the connecting member of the low temperature non-combustion smoking article shown in Figure 6;

Figure 9 is a perspective view of the base of the low temperature non-combustion smoking article shown in Figure 6.

Detailed ways

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 shown 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 the understanding of the present disclosure will be more fully understood.

It should be noted that when an element is referred to as being "fixed" to another element, it can be directly on the other element or the element can be present. When an element is considered to be "connected" to another element, it can be directly connected to the other element or. The terms "vertical," "horizontal," "left," "right," and the like, as used herein, are for illustrative purposes only.

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.

Referring to Figures 1 and 2, in one embodiment, the low temperature non-combustion smoking article 10 includes a spout assembly 100, a heating assembly, a sleeve 300, and a base 400. Referring to FIG. 3 and FIG. 4, the nozzle assembly 100 is provided with a cigarette passage 110 and an intake passage 120. The cigarette passage 110 is in communication with the intake passage 120, and the cigarette passage 110 is used for inserting the cigarette 20, and the inner diameter of the cigarette passage 110 is The outer diameter of the cigarette 20 is adapted, and the direction in which the intake passage 120 extends is the same as the direction in which the cigarette 20 extends. The heating assembly 200 is fixedly coupled to the nozzle assembly 100. The heating assembly 200 defines an outlet passage 210. The outlet passage 210 communicates with the cigarette passage 110, and the cigarette 20 can pass through the cigarette passage 110 and be inserted into the outlet passage 210. When the cigarette 20 is received in the cigarette channel 110, the outer wall of the cigarette 20 can separate the inlet passage 120 from the outlet passage 210, that is, the ambient air flows in the intake passage 120 outside the cigarette 20 during smoking, the cigarette 20 The smoke mixture produced after baking flows inside the cigarette 20. The sleeve 300 is sleeved on the heating assembly 200 and is fixedly coupled to the nozzle assembly 100. Casing 300 and heating assembly 200 Enclosed as an intake chamber 310, the intake chamber 310 is in communication with the intake passage 120 and the outlet passage 210, respectively. The base 400 is fixedly coupled to the sleeve 300 and the heating assembly 200, respectively, and the base 400 is used to close the intake chamber 310 to enable air to flow in the low temperature non-combustion smoking article 10.

The low temperature non-combustion smoking article 10, the cigarette 20 can be inserted into the cigarette channel 110 of the nozzle assembly 100 of the low temperature non-burning smoking article 10, and baked in the outlet passage 210 of the heating assembly 200. Since the inner diameter of the cigarette passage 110 is adapted to the outer diameter of the cigarette 20, when the cigarette 20 is received in the cigarette passage 110, the outer wall of the cigarette 20 can separate the inlet passage 120 from the outlet passage 210, and the ambient air can be kept from low temperature. The top of the combustion smoking article 10 enters, flows through the intake passage 120, then enters the intake chamber 310, and is heated within the body of the smoking article to bake the cigarette 20. Since the heated air is circulated in the cigarette 20, the ambient air in the intake passage 120 can be heated by the heat of the outer surface of the cigarette 20, so that the water vapor and the volatile matter in the ambient air are evaporated in time to prevent the water vapor and the water vapor. The volatile matter enters the intake chamber 310, thereby effectively maintaining the drying and cleaning of the intake chamber 310.

5 and FIG. 6, in an embodiment, the heating assembly 200 includes a first heating cylinder 220 and a second heating cylinder 230, and both the first heating cylinder 220 and the second heating cylinder 230 extend along the extending direction of the sleeve 300. . One end of the first heating cylinder 220 is fixedly connected to the base 400, the other end of the first heating cylinder 220 is fixedly connected to one end of the second heating cylinder 230, and the other end of the second heating cylinder 230 is fixedly connected to the nozzle assembly 100. In an embodiment, the first heating cylinder 220 and the second heating cylinder 230 are fixedly connected by riveting, and the first heating cylinder 220 and the second heating cylinder 220 and the second heating cylinder 230 are connected to be stable, and the first heating cylinder 220 and the first The disassembly of the two heating cylinders 230. The outlet passage 210 is located in the second heating cylinder 230, the cigarette 20 can be inserted into the second heating cylinder 230, and the second heating cylinder 230 can heat the cigarette 20. The sleeve 300 is sleeved outside the first heating cylinder 220 and the second heating cylinder 230. The sleeve 300, the first heating cylinder 220 and the second heating cylinder 230 are collectively arranged as a substantially annular inlet chamber 310, and the ambient air can be The intake passage 120 flows into the intake chamber 310. The first heating cylinder 220 and the second heating cylinder 230 may generate heat after being energized, and thus the first heating cylinder 220 and the second heating cylinder 230 can heat the gas in the intake chamber 310. By bringing the air in the intake chamber 310 into direct contact with the heating assembly 200, the air flowing into the intake chamber 310 from the intake passage 120 can be further heated, thereby making it empty. The water vapor and volatile matter in the gas are further heated and evaporated to ensure drying and cleaning of the intake chamber 310.

In one embodiment, the first heating cylinder 220 is made of metal. When the first heating cylinder 220 is connected to the power source, it can generate heat and heat the air in the first heating cylinder 220. In another embodiment, the material of the first heating cylinder 220 is a heat generating ceramic, and the heat generating ceramic can generate heat after the power is turned on, and heat the air in the first heating cylinder 220. In an embodiment, the material of the second heating cylinder 230 may be metal or heat-generating ceramics, and the second heating cylinder 230 may generate heat after being powered on, and details are not described herein. The first heating cylinder 220 and the second heating cylinder 230 are different in that the first heating cylinder 220 directly heats the ambient air, and the second heating cylinder 230 is used to insert the cigarette 20 to heat the inflow into the cigarette 20. The air is further heated so that the cigarette 20 is baked in the second heating cylinder 230.

In an embodiment, the first heating cylinder 220 is provided with a heating chamber 221, and the heating chamber 221 is in communication with the outlet passage 210. A gas venting chamber 410 is disposed in the base 400. The gas venting chamber 410 communicates with the air inlet chamber 310 and the heating chamber 221, respectively. The gas in the air inlet chamber 310 can flow into the first heating tube 220 through the stagnation chamber 410. Specifically, in an embodiment, the first heating cylinder 220 is substantially cylindrical, and the bottom end of the first heating cylinder 220 near the base 400 is provided with a first air inlet slot 223, and the air holding chamber 410 passes through the first air inlet. The groove 223 is in communication with the heating chamber 221, and the gas in the intake chamber 310 can flow into the heating chamber 221 via the first intake groove 223. The function of the stagnation chamber 410 is that it can store a certain amount of air as a buffer zone for the airflow so that the airflow can slowly flow into the heating assembly 200. The stagnant air chamber 410 can also serve as a receiving cavity for the foreign matter. If some foreign matter enters the air intake chamber 310, the air is not evaporated in the air inlet chamber 310, and the foreign matter falls into the air holding chamber 410. Since the airflow in the air inlet chamber 310 needs to change direction in the air stagnation chamber 410 to flow into the heating chamber, and then into the air outlet passage 210, and the diameter of the air outlet passage 210 is smaller than the diameter of the air venting chamber 410, the airflow in the air outlet passage 210 is likely to occur. The flow rate is greater than the flow rate of the airflow in the intake chamber 310, that is, the negative pressure is easily generated in the air stagnation chamber 410, so that the foreign matter in the stagnation chamber 410 is easily floated by the airflow and enters the heating assembly 200. The temperature inside the heating assembly 200 is relatively high, and after the foreign matter enters the interior of the heating assembly 200, it is easily evaporated and enters the outlet passage 210, and finally adheres to the tobacco. Through the above process, water vapor or foreign matter is difficult to deposit inside the low temperature non-burning smoking article 10, so that the low temperature non-burning smoking article 10 can be effectively ensured. The internal cleaning can avoid frequent disassembly of the low temperature non-burning smoking article 10 to clean the interior of the low temperature non-burning smoking article 10, thereby saving the user's time.

It can be understood that, in order to enable the heating temperature of the first heating cylinder 220 and the second heating cylinder 230 to be controllable, a temperature sensor can be disposed on the wall of the first heating cylinder 220 and the second heating cylinder 230 to detect in real time. The temperature of a heating cylinder 220 or a second heating cylinder 230, and the heating current or heating time of the first heating cylinder 220 and the second heating cylinder 230 may be controlled in conjunction with a controller and a program to ensure the efficiency of the baking tobacco 20 and quality.

In an embodiment, the heating assembly 200 further includes a heating core 240 and a filter sheet 250. The filter sheet 250 is interposed between the first heating cylinder 220 and the second heating cylinder 230. The heating core 240 is housed in the heating chamber 221, and one end of the heating core 240 abuts against the first heating cylinder 220, and the other end of the heating core 240 abuts against the filter sheet 250. A spiral flow path 241 is defined in the outer surface of the heating core 240. The first heating cylinder 220 is provided with a second air inlet groove 225 extending through the inner and outer surfaces of the first heating tube 220. The air inlet chamber 310 passes through the second air inlet slot 225. In communication with the spiral flow path 241, the gas in the intake chamber 310 can flow into the heating chamber 221 through the second intake groove 225 and flow in the spiral flow path 241. A filter hole 251 is opened in the filter sheet 250, and the spiral flow path 241 communicates with the air outlet passage 210 through the filter hole 251. In one embodiment, the heating core 240 is substantially cylindrical, and the outer diameter of the heating core 240 is substantially equal to the inner diameter of the first heating cylinder 220. When the heating core 240 is assembled with the first heating cylinder 220, the gas flowing into the heating chamber 221 from the stagnant chamber 410 can be mixed with the gas flowing into the heating chamber 221 from the inlet chamber 310, and along the spiral flow path of the heating core 240. 241 rose.

In an embodiment, the second intake slot 225 has a smaller area, and the second intake slot 225 facilitates convective exchange of air in the intake chamber 310 with air in the heating chamber 221 to improve the intake chamber 310. Gas flow and rate of temperature increase. The rapid temperature rise of the gas in the inlet chamber 310 is advantageous for increasing the heating efficiency of the entire low temperature non-combustion smoking article 10 to the cigarette 20, that is, the air flowing into the heating chamber 221 in the inlet chamber 310 can be rapidly heated to a desired temperature, and then enters. The cigarette 20 is baked in the second heating cylinder 230.

In an embodiment, the heating core 240 is made of a heat generating ceramic, and the heating core 240 can generate heat when the power is turned on, so that the air around the heating core 240 can be heated to improve the effect of heating the air. rate. In other embodiments, the material of the heating core 240 may also be metal. The air entering from the air inlet chamber 310 by the heating core 240 made of a metal material slowly rises along the spiral flow path 241 in the spiral flow path 241, thereby slowing down. The flow rate of the gas stream is such that the gas stream can be in sufficient contact with the first heating cylinder 220 to allow the air to be sufficiently heated to the desired temperature. In one embodiment, the filter sheet 250 has a disk shape, and the filter holes 251 extend through the upper and lower surfaces of the filter sheet 250, and the number of the filter holes 251 is plural. By providing a plurality of filter holes 251, the air inlet is facilitated on the one hand. In the second heating cylinder 230, on the other hand, the filter sheet 250 prevents the particulate matter generated by the cigarette 20 during the baking process from falling into the second heating cylinder 230, causing clogging of the spiral flow passage 241.

Referring to FIG. 5, in an embodiment, an inner flow passage 243 is further disposed in the heating core 240. The inner flow passage 243 communicates with the stagnation chamber 410, and the inner flow passage 243 communicates with the outlet passage 210 through the filter hole 251. The gas in the stagnant gas chamber 410 may flow into the inner flow passage 243 from the bottom of the first heating cylinder 220, be heated in the inner flow passage 243, and then flow into the outlet passage 210 of the second heating cylinder 230 through the filter hole 251. In an embodiment, the cross-section of the inner flow passage 243 is substantially circular in shape, and the cross-sectional area of the inner flow passage 243 is abruptly reduced at the end of the heating core 240 near the filter sheet 250. In the embodiment shown in Fig. 5, one end of the heating core 240 near the filter sheet 250 is provided with a step portion, and the area of the cross section of the inner flow path 243 abruptly decreases within the step portion. The inner flow passage 243 functions to enable the air in the air stagnation chamber 410 to directly flow into the air outlet passage 210 via the heating core 240, but since the cross-sectional area of the inner flow passage 243 is suddenly reduced, the gas has a larger cross-sectional area. The flow velocity in the inner flow passage 243 of the small portion suddenly increases, thereby facilitating the formation of a negative pressure, so that gas or foreign matter in the stagnant gas chamber 410 is carried into the heating core 240 to utilize the heat in the heating core 240 to make the water vapor or The foreign matter is evaporated.

Referring also to Figures 7 and 8, in one embodiment, the spout assembly 100 includes a spout member 130 and a connector 140, the spout member 130 and the connector member 140 being fixedly coupled. The nozzle member 130 includes a first body 131 and a first convex ring 133. The first body 131 is fixedly connected to the first convex ring 133. The first convex ring 133 is provided with a first ventilation groove 121. A portion of the air passage 120, the first venting groove 121 extends in the same direction as the direction in which the cigarette 20 extends. In an embodiment, the first body 131 and the first convex ring 133 are integrally formed to facilitate the manufacturing of the nozzle member 130. In an embodiment, the first convex ring 133 is substantially annular, and the inner diameter of the first convex ring 133 is opposite to the outer diameter of the cigarette 20. adaptation. The first convex ring 133 has a first surface 134 that can abut the outer surface of the cigarette 20 when the cigarette 20 is inserted into the nozzle member 130.

The connecting member 140 includes a second body 141 and a second protruding ring 143. The second body 141 is fixedly coupled to the first body 131 and the second protruding ring 143, respectively. The second body 141 is fixed to the sleeve 300 and the second heating barrel 230, respectively. connection. In an embodiment, the second body 141 and the second convex ring 143 are integrally formed to facilitate the manufacturing of the connector 140. In an embodiment, the second convex ring 143 is substantially annular, and the inner diameter of the second convex ring 143 is adapted to the outer diameter of the cigarette 20. The second convex ring 143 has a second surface 144. The second surface 144 can abut the outer surface of the cigarette 20 when the cigarette 20 is inserted into the connector 140. The second body 141 is provided with a second ventilation groove 123. The second ventilation groove 123 is in communication with the first ventilation groove 121, and the second ventilation groove 123 is located between the first convex ring 133 and the second convex ring 143. The slot 123 is part of the intake passage 120. In an embodiment, the second ventilation groove 123 is annular, and the second ventilation groove 123 is located on the second body 141. The second convex ring 143 is provided with an air inlet hole 125 communicating with the second ventilation groove 123. The air inlet hole 125 is a part of the intake passage 120. The air inlet hole 125 is separated from the cigarette 20 by the second convex ring 143, that is, after the cigarette 20 is inserted into the connecting member 140, the hole wall of the air inlet hole 125 and the outer wall of the cigarette 20 are spaced apart, and the first convex ring 133 can The air intake hole 125 is blocked.

Specifically, in an embodiment, the orthographic projection of the groove wall of the first ventilation groove 121 along the extending direction of the cigarette 20 does not overlap with the cross section of the groove wall of the second ventilation groove 123, that is, when the line of sight of the person is square When the nozzle member 130 is at the top end, the air intake hole 125 cannot be seen. When the cigarette 20 is inserted into the connector 140, the air inlet hole 125 is not exposed. In one embodiment, one end of the second heating cylinder 230 abuts the second convex ring 143, the connecting member 140 is made of a material resistant to high temperature and heat insulation, and the connecting member 140 prevents the heat of the second heating cylinder 230 from being connected. The piece 140 absorbs the emission so as not to cause waste of energy. In an embodiment, the material of the connecting member 140 can also be PEEK (Polyetheretherketone). In one embodiment, the connector 140 is fixedly coupled to the sleeve 300 by riveting to facilitate the removal of the sleeve 300 and the connector 140 while ensuring that the sleeve 300 and the connector 140 are securely coupled.

In an embodiment, the connecting member 140 further includes a plurality of protrusions 145, the protrusions 145 and the second body The 141 is integrally formed to facilitate the manufacture of the connector 140. In an embodiment, the plurality of protrusions 145 are located below the second convex ring 143. After the second heating tube 230 abuts the second convex ring 143, the protrusion 145 is disposed outside the second heating tube 230. And can abut against the outer wall of the second heating cylinder 230 to restrict the movement of the second heating cylinder 230. Specifically, in an embodiment, the second heating cylinder 230 is riveted to the connecting member 140 by the protrusion 145 to achieve a fixed connection of the second heating barrel 230 to the connecting member 140. The riveting method can ensure the stable connection between the second heating cylinder 230 and the connecting member 140, and facilitate the disassembly of the second heating cylinder 230 and the connecting member 140. In an embodiment, the inner surface of the plurality of protrusions 145 facing the second heating cylinder 230 has a cylindrical shape, and the cylindrical surface is compatible with the outer surface of the second heating cylinder 230, and the second heating cylinder 230 and the connecting member After assembly 140, the plurality of projections 145 can ensure centering of the second heating cartridge 230 to prevent deflection of the position of the second heating cartridge 230 during assembly.

By providing the nozzle member 130 and the connecting member 140, the cigarette 20 can be inserted into the smoking body 300 through the nozzle member 130 and the connecting member 140, and baked in the smoking body 300. Since the inner diameter of the first convex ring 133 is adapted to the outer diameter of the cigarette 20, the inner diameter of the second convex ring 143 is adapted to the outer diameter of the cigarette 20, and after the cigarette 20 is inserted into the smoking body 300, the first surface 134 and the cigarette The outer surface of 20 abuts, the second surface 144 abuts the outer surface of the cigarette 20, and the opening of the first venting groove 121 and the second venting groove 123 facing the cigarette 20 can be blocked by the outer surface of the cigarette 20. The air inlet 125, which is separated by the second convex ring 143, isolates the passage through which the airflow enters from the air outlet passage 210. Since the first venting groove 121 and the second venting groove 123 are in communication, the second venting groove 123 and the air inlet hole 125 are in communication, and the extending direction of the first venting groove 121 is the same as the extending direction of the cigarette 20, the ambient air can be burned by the low temperature. The top of the smoking implement 10 enters, sequentially flows through the first venting groove 121, the second venting groove 123, and the intake hole 125, and then enters the intake cavity 310, and is heated in the smoking body 300 to bake the cigarette 20. Since the first convex ring 133 can block the air inlet hole 125 and the air inlet hole 125 is not exposed, dust or foreign matter can be prevented from falling into the air intake chamber 310. Since the heated air is circulated in the cigarette 20, the ambient air in the first venting groove 121 and the second venting groove 123 can be heated by the high temperature of the outer surface of the cigarette 20, so that the water vapor and the volatile matter in the ambient air are timely. Evaporation to prevent moisture and volatile substances from entering the intake chamber 310, thereby effectively maintaining Drying and cleaning of the air chamber 310.

In an embodiment, the nozzle member 130 further includes a third convex ring 135, and the third convex ring 135 is fixedly coupled to the first body 131. In an embodiment, the third convex ring 135 is integrally formed with the first body 131 to facilitate the manufacturing process of the nozzle member 130. The third convex ring 135 is substantially annular, and the third convex ring 135 has a third surface 136 having a shape that matches the shape of the cigarette 20. The third surface 136 can abut the outer surface of the cigarette 20 after the cigarette 20 is inserted into the nozzle member 130. A plurality of third ventilation grooves 137 are defined in the third convex ring 135. The plurality of third ventilation grooves 137 are spaced apart from the third convex ring 135, and the third ventilation groove 137 is in communication with the first ventilation groove 121. In an embodiment, the width of the third venting groove 137 is much smaller than the width of the first venting groove 121. In the embodiment shown in FIG. 7, the nozzle member 130 has a substantially circular tubular shape, and the ratio of the central angle of the groove bottom of the first venting groove 121 to the central angle of the groove bottom of the third venting groove 137 is 1.5:1 to 3.5: 1. The third venting groove 137 is evenly distributed along the circumferential direction of the inner wall of the nozzle member 130. By providing the third venting groove 137 and the first venting groove 121 whose central angle is within the above range, the resistance of the air circulation can be increased under the condition that the ambient air has a sufficient air intake area, so that the air can slowly flow into the air. Within the air chamber 310, it is advantageous to ensure that the air is heated in the smoking body body for a sufficient period of time to enhance the efficiency and quality of the heated cigarette 20.

Referring to FIG. 9 , in an embodiment, the base 400 includes a base 420 and a latching portion 430 . The base 410 is integrally formed with the engaging portion 420 to facilitate the manufacturing process of the base 400 . The engaging portion 420 is sleeved on the outer wall of the sleeve 300, and the sleeve 300 and the engaging portion 420 are fixedly connected by riveting, and the bottom end of the sleeve 300 abuts against the base 400. The riveting method can ensure the stability of the connection between the sleeve 300 and the base 400, and facilitate the disassembly of the sleeve 300 and the base 400. In one embodiment, one end of the first heating cylinder 220 abuts the base 410, and the base 400 is made of a high temperature resistant material, so that the heat of the first heating cylinder 220 can be prevented from being absorbed by the base 400, so as to avoid Waste of energy. In an embodiment, the base 400 is made of PEEK, which has high temperature resistance and heat insulation properties, and is favorable for processing and forming the base 400. In an embodiment, the base 400 further includes a fourth convex ring 440, and the fourth convex ring 440 is integrally formed with the base 410 to facilitate the manufacturing of the base 400. The fourth convex ring 440 can abut against the outer wall of the first heating cylinder 220 to restrict the movement of the first heating cylinder 220. Specifically, in an embodiment, the inner diameter of the fourth convex ring 440 can be combined with the first heating cylinder 220 The outer diameter is adapted such that the fourth convex ring 440 and the first heating cylinder 220 can be assembled to form a tight fit, so that the position of the first heating cylinder 220 during assembly can be prevented from being skewed. Further, in an embodiment, the inner surface of the fourth convex ring 440 is cylindrical, and the cylindrical surface is compatible with the outer surface of the first heating cylinder 220. After the first heating cylinder 220 is assembled with the base 400, the fourth The collar 440 can ensure centering of the first heating cylinder 220 to prevent deflection of the position of the first heating cylinder 220 during assembly. In an embodiment, the fourth convex ring 440 and the first heating cylinder 220 are rivet-fitted to ensure the stability of the connection between the base 400 and the first heating cylinder 220, and to facilitate the disassembly of the base 400 and the first heating cylinder 220. .

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

A low temperature non-burning smoking article for baking a cigarette, the low temperature non-burning smoking article comprising:

a nozzle assembly, the nozzle assembly is provided with a cigarette passage and an intake passage, the cigarette passage is in communication with the intake passage, the cigarette passage is for inserting the cigarette, and an inner diameter of the cigarette passage is The outer diameter of the cigarette is matched, and the extending direction of the air inlet passage is the same as the extending direction of the cigarette;

a heating assembly fixedly coupled to the nozzle assembly, the heating assembly having an air outlet passage therein, the outlet passage communicating with the cigarette passage, the cigarette being able to pass through the cigarette passage and inserted into the outlet passage When the cigarette is received in the cigarette passage, the outer wall of the cigarette can separate the inlet passage from the outlet passage;

a sleeve sleeved on the heating assembly and fixedly connected to the nozzle assembly; the sleeve and the heating assembly are enclosed as an intake chamber, and the inlet chamber and the intake passage respectively The outlet passage is connected; and

A base is fixedly coupled to the sleeve and the heating assembly, respectively, the base is for closing the air inlet chamber.
A low temperature non-combustion smoking article according to claim 1, wherein said heating assembly comprises a first heating cylinder and a second heating cylinder, said first heating cylinder and said second heating cylinder each being along said casing Extending the extension direction; one end of the first heating cylinder is fixedly connected to the base, the other end of the first heating cylinder is fixedly connected with one end of the second heating cylinder, and the other end of the second heating cylinder Fixedly connected to the nozzle assembly; the outlet passage is located in the second heating cylinder, the cigarette can be inserted into the second heating cylinder, and the second heating cylinder can heat the cigarette; a sleeve is sleeved outside the first heating cylinder and the second heating cylinder, and the sleeve, the first heating cylinder and the second heating cylinder are encircled as the inlet chamber, and the The first heating cylinder and the second heating cylinder are capable of heating the gas in the intake chamber.
The low-temperature non-combustion smoking article according to claim 2, wherein the first heating cylinder is provided with a heating chamber, and the heating chamber is in communication with the air outlet passage; The air chamber is in communication with the air inlet chamber and the heating chamber, respectively, and the air in the air inlet chamber The body can flow into the first heating cylinder through the air stagnation chamber.
The low temperature non-combustion smoking article according to claim 3, wherein the first heating cylinder is provided with a first air inlet slot, and the air venting chamber is connected to the heating chamber through the first air inlet slot. .
The low temperature non-combustion smoking article according to claim 4, wherein the heating assembly further comprises a heating core and a filter sheet, the filter sheet being interposed between the first heating cylinder and the second heating cylinder The heating core is received in the heating chamber, one end of the heating core abuts the first heating cylinder, and the other end of the heating core abuts the filter sheet; a spiral flow channel is opened on the surface, the first heating cylinder is provided with a second air inlet groove extending through the inner and outer surfaces of the first heating cylinder, and the air inlet chamber passes through the second air inlet slot and the The spiral flow path is connected to the filter; the filter plate is provided with a filter hole, and the spiral flow path communicates with the air outlet passage through the filter hole.
The low-temperature non-combustion smoking article according to claim 5, wherein the heating core is provided with an inner flow passage, the inner flow passage is in communication with the stagnant gas chamber, and the inner flow passage passes through the filtering The hole is in communication with the outlet passage.
The low temperature non-combustion smoking article according to claim 5, wherein the first heating cylinder is riveted and fixedly coupled to the second heating cylinder.
The low-temperature non-combustion smoking article according to claim 5, wherein the material of the first heating cylinder and the material of the second heating cylinder are both heat-generating ceramics.
The low-temperature non-combustion smoking article according to claim 5, wherein the heating core is made of a heat-generating ceramic.
The low-temperature non-combustion smoking article according to claim 5, wherein the filter sheet has a disk shape, and the number of the filter holes is plural.
The low temperature non-combustion smoking article of claim 2, wherein the nozzle assembly comprises:

The nozzle member includes a first body and a first convex ring, the first body and the first convex ring are fixedly connected, and the first convex ring is provided with a first ventilation groove, and the first ventilation groove is a portion of the intake passage, the first venting groove extending in the same direction as the extension of the cigarette; the first convex ring has a first surface, an inner diameter of the first convex ring and the cigarette The outer diameter is adapted, the The first surface is capable of abutting the outer surface of the cigarette; and

a connector comprising a second body and a second convex ring, the second body being fixedly coupled to the second convex ring and the first body, respectively, and the second body is respectively associated with the sleeve and the a second heating cylinder fixedly coupled; the second convex ring having a second surface, an inner diameter of the second convex ring matching an outer diameter of the cigarette, the second surface being capable of and an outer surface of the cigarette Abutting; the second body is provided with a second ventilation groove, the second ventilation groove is in communication with the first ventilation groove, and the second ventilation groove is located at the first convex ring and the second Between the convex rings, the second venting groove is a part of the air inlet passage; the second convex ring is provided with an air inlet hole, the air inlet hole and the second venting groove and the inlet respectively The air chamber is in communication, the air inlet is a part of the air inlet passage; the air inlet hole is separated from the cigarette by the second convex ring, and the first convex ring can be the air inlet hole Occlusion.
The low temperature non-combustion smoking article according to claim 11, wherein the first body is integrally formed with the first convex ring.
The low temperature non-combustion smoking article according to claim 11, wherein the second body is integrally formed with the second convex ring.
The low temperature non-combustion smoking article according to claim 11, wherein said sleeve is riveted and fixedly coupled to said connecting member.
The low temperature non-combustion smoking article according to claim 11, wherein said connecting member further comprises a plurality of protrusions, said protrusion being integrally formed with said second body, said protrusion being capable of said second The outer wall of the heating cylinder abuts to limit the movement of the second heating cylinder.
The low temperature non-combustion smoking article according to claim 11, wherein the nozzle member further comprises a third convex ring, the third convex ring is fixedly connected with the first body, and the third convex ring has a third surface, the shape of the third surface is adapted to the shape of the cigarette; the third convex ring is provided with a third ventilation groove, and the third ventilation groove is in communication with the first ventilation groove.
The low-temperature non-combustion smoking article according to claim 16, wherein the number of the third venting grooves is plural, and the plurality of the third venting grooves are spaced apart from each other on the third convex ring.
The low temperature non-combustion smoking article according to claim 2, wherein the base bag The seat body and the engaging portion are fixedly connected to the engaging portion, the engaging portion is sleeved on the sleeve, and the sleeve is fixedly connected with the engaging portion; The first heating cylinder is in fixed contact with the seat body.
The low-temperature non-combustion smoking article according to claim 18, wherein the seat body is integrally formed with the engaging portion, and the sleeve is caulked and fixedly coupled to the engaging portion.
The low temperature non-combustion smoking article according to claim 18, wherein the base further comprises a fourth convex ring, the fourth convex ring is integrally formed with the seat body, and the fourth convex ring and the first An outer wall of a heating cylinder abuts to limit movement of the first heating cylinder.