WO2018094641A1 - Heating and non-combusting smoking apparatus and heating component thereof - Google Patents

Abstract

A heating and non-combusting smoking apparatus (10) and a heating component (100) thereof. The heating component (100) comprises a pipe body (110), a heating rod (140), and a heating plate (130). A filter (120) is provided within the pipe body (110). The heating plate (130) comprises a first extremity (131) and a second extremity (132) arranged opposite the first extremity (131).

Description

Heating non-burning smoking articles and heating components thereof

[Technical Field]

The invention relates to the field of air heating technology, in particular to a heating non-burning smoking article and a heating assembly thereof.

【Background technique】

Tobacco harm is one of the most serious public health problems in the world today. Numerous scientific evidence suggests that smoking and secondhand smoke exposure (passive smoking) are a serious hazard to human health. According to statistics from the World Health Organization (WHO), the number of people dying from smoking in the world is as high as 6 million per year, that is, one person dies of smoking-related diseases every six seconds on average; half of smokers will die prematurely due to smoking. The number of non-smokers killed by second-hand smoke is about 600,000.

In view of the serious human dependence on tobacco products today and the double pressure of health and cancer and disease challenges; the tobacco market urgently needs a kind of smoke and smoke that can bring excitement and pleasure to smokers like traditional tobacco. Such products that are not harmed by health. The heating non-combustion technology directly heats the tobacco through the smoking article but does not burn to generate smoke, which can achieve the satisfaction of the cigarette, and can reduce the generation and inhalation of harmful substances in the combustion process, and is an innovative product most likely to have a subversive effect on the cigarette.

The smoking article used in the heating non-combustion technology generally comprises a heating component. The conventional heating component adopts direct conduction heating, and the heating component directly contacts and heats the tobacco product, and continuously heats the tobacco product to atomize to generate smoke, but this causes the tobacco product to be heated. The unevenness of the area tends to cause severe carbonization of the tobacco product adjacent to the heating assembly, while the tobacco product remote from the heating assembly is not heated and atomized.

[Summary of the Invention]

Based on this, it is necessary to provide a heating non-combustion smoking article and a heating assembly thereof which can provide a uniform heating effect.

A heating assembly includes: a tubular body having an air inlet at one end thereof, a filter mesh disposed in the tubular body, the filter meshing the tubular body into a first cavity and a second cavity a heating rod is received in the second cavity, a heating space is formed between the heating rod and the inner wall of the tube body, and a spiral or stepped flow guiding channel is formed in the heating space; The heating sheet includes a first end and a second end opposite to the first end, the second end is smaller in size than the first end, and the first end is connected to the filter screen The second end is received in the first cavity, and the heating piece is led out of the first cavity by a first wire.

A heating non-combustion smoking article comprising: a heating assembly as described above.

The heating non-burning smoking device and the heating assembly thereof, the heating piece is led out of the first cavity through the first wire, and the heating rod and the heating piece are controlled by independent circuits, and the heating rod and the heating piece simultaneously enter the heating working state after the starting, the heating piece The temperature rises firstly to reach the atomization temperature of the tobacco product, and the heating sheet is directly in contact with the tobacco product, so that the suctionable state can be reached in a short time, then the heating piece stops working, and the heating rod continues to heat, so that the tube enters the tube through the air inlet. The cold air in the body is fully heated after passing through the spiral or stepped flow guiding channel, and the formed hot air flows through the filter into the first cavity to continuously and uniformly radiate the tobacco product in the first cavity, so the heating effect is more Faster and better.

[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 view of a heating assembly in a first embodiment;

Figure 2 is a side view of the heating assembly of Figure 1;

Figure 3 is a side elevational view of the heating assembly of Figure 1;

Figure 4 is a cross-sectional view taken along line A-A of Figure 3;

Figure 5 is a cross-sectional view of another view of the heating assembly of Figure 1;

Figure 6 is a plan view of the heating assembly of Figure 1;

7 is a schematic structural view of a filter screen and a heating sheet in an embodiment;

Figure 8 is a plan view of the screen and the heater chip shown in Figure 7;

Figure 9 is a side view of the screen and heating sheet of Figure 7;

Figure 10 is a cross-sectional view of the heating assembly of the second embodiment;

Figure 11 is a cross-sectional view of the heating assembly of the third embodiment;

Figure 12 is a cross-sectional view of the heating assembly of the fourth embodiment;

Figure 13 is a cross-sectional view of the heating assembly of the fifth embodiment;

Fig. 14 is a cross-sectional view showing an intake pipe communicating pipe body in an embodiment.

 【detailed description】

The above described objects, features and advantages of the present invention will become more apparent from the aspects of the appended claims. Numerous specific details are set forth in the description below in order to provide a thorough understanding of the invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the invention, and thus the invention is not limited by the specific embodiments disclosed below.

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 the purpose of illustration and are not intended to be the only embodiment.

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 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.

Referring to FIG. 1, the heating non-combustion smoking article 10 in an embodiment directly heats the tobacco product 20 by heating without burning, but does not burn to generate smoke, which can achieve satisfaction of the cigarette or not. Burn cigarettes to avoid the generation and inhalation of harmful substances in the combustion process. The tobacco product 20 can be a tobacco sheet, a cigarette or shredded tobacco, and the like. Specifically, in the present embodiment, the heating non-combustion smoking article 10 includes a heating assembly 100 and a heat generating tube (not shown). The tobacco product 20 is inserted into the heating assembly 100 in the direction indicated by the arrow in FIG.

Referring to Figure 1, the heating assembly 100 is primarily used to heat the inhaled cold air to form a hot gas stream that radiantly heats the tobacco product 20 more uniformly and that effectively prevents the tobacco product 20 from approaching the portion of the heating assembly 100. Charging, and the heating away from the heating unit 100 is insufficient.

Referring to FIG. 2 to FIG. 6 together, the heating assembly 100 of the first embodiment includes a tube body 110, a screen 120, a heating sheet 130, a heating rod 140, and a heating wire 150. Specifically, in the present embodiment, both ends of the heating wire 150 are electrically connected to the power source or the battery 30, and the heating rod 140 is not directly connected to the power source or the battery 30 through the wires. That is, the heating rod 140 itself is not energized to generate heat, and heat is generated by the heating wire 150 and transmitted to the heating rod 140. Of course, in other embodiments, the heating rod 140 can also be directly connected to the power source or the battery through a wire.

One end of the pipe body 110 is provided with an air inlet 1231, and the suction force generated by the outside cold air by the suction action enters the pipe body 110 through the air inlet 1231. The other end of the pipe body 110 is further provided with an air outlet 1111. The cold air is heated to form a hot air flow, and the hot air flow enters the heat pipe through the air outlet 1111 to radiantly heat the tobacco product 20. Specifically, the flow direction of the air flow is indicated by an arrow in FIG.

Referring to FIG. 14 , specifically to the present embodiment, the heating assembly 100 further includes an intake duct 200 . The intake duct 200 includes an air inlet end 210 and an air outlet end 220. The side wall of the intake duct 200 is sealed, and the air outlet end 220 is in communication with the air inlet 1231. When the suction operation occurs, the cold air enters the intake duct 200 from the intake end 210, and is discharged from the outlet end 220, thereby entering the tubular body 110 through the intake port 1231. Because the side wall of the intake duct 200 is sealed, the cold air can only enter the pipe body 110 from the air outlet end 220 after entering the air inlet end 210, and no leakage or mixing of other gases during the air guiding process is beneficial to ensure the airflow. The source is clean and non-polluting.

The air inlet end 210 is provided with a unidirectional air flow sensor 230 for sensing the air flow when the suction action occurs to record the effective number of smoking ports. For example, the one-way airflow sensor 230 can be a single-point microphone.

The tube body 110 may be formed of an insulating, heat-conductive material, so that the tube body 110 itself does not generate heat, but conducts heat generated by the heating wire 150. For example, the tube body 110 may be an easily thermally conductive metal, ceramic or other medium, and the tube body 110 may also be an insulated aluminum material or the like.

Referring to FIG. 7 to FIG. 9 together, the screen 120 is disposed in the tube body 110. The screen 120 divides the tube body 110 into a first cavity 110a and a second cavity 110b that communicate with each other. The tobacco product 20 is housed within the first cavity 110a, the inner diameter of the first cavity 110a remaining the same as the diameter of the tobacco product 20 for insertion. The heating rod 140 and the heating wire 150 are housed in the second cavity 110b. The height of the first cavity 110a is two-thirds the effective length of the tobacco product 20.

The filter hole 121 is distributed on the filter screen 120, and the smoke residue of the tobacco product 20 can be effectively prevented from leaking into the second cavity 110b. A heating space is formed between the heating rod 140 and the inner wall of the pipe body 110, and a spiral or stepped flow guiding passage is formed in the heating space. A printed circuit 111 may also be disposed on the sidewall of the second cavity 110b, and the printed circuit 111 is led out through the circuit pin 112.

Specifically, in the present embodiment, the heating sheet 130 and the screen 120 are integrally molded. Therefore, the assembly process of the heating sheet 130 and the filter screen 120 is omitted, and the assembly is more convenient and quick. Moreover, the screen 120 is integrally formed with the tube body 110, thereby eliminating the assembly process of the screen 120 and the tube body 110, and the assembly is more convenient and quick. Of course, in other embodiments, the heating sheet 130 may also have a separate structure from the screen 120. The screen 120 can also be a separate structure from the tubular body 110.

The heater chip 130 includes a first end 131 and a second end 132 disposed opposite the first end 131. The second end 132 is smaller in size than the first end 131. The first end 131 is connected to the screen 120, and the second end 132 is received in the first cavity 110a. In particular, the second end 132 can be a tip for piercing into the tobacco product.

After the tobacco product 20 is loaded into the first cavity 110a of the tubular body 110, the second end 132 of the heater chip 130 is inserted into the tobacco product 20. Specifically, the heating sheet 130 is located at the center of the screen 120, so that it can be inserted into the center line of the tobacco product 20, preventing the heating sheet 130 from being unevenly heated and uneven on both sides.

Specifically, in the present embodiment, the first end 131 of the heating piece 130 extends through the screen 120 into the second cavity 110b. The first end 131 extending into the second cavity 110b is spaced apart from the heating rod 140 by a certain distance to prevent mutual heating between the heating sheet 130 and the heating rod 140. The first end 131 penetrating into the second cavity 110b can provide heat for the heating of the air within the second cavity 110b, further ensuring that the cold air is sufficiently heated. Of course, in other embodiments, the first end 131 may also be integrally formed on the screen 120 without penetrating the screen 120.

The heater chip 130 is led out of the first cavity 110a through the first wire 133, and the heater chip 130 and the heater wire 150 are controlled by mutually independent circuits. That is, the energization of the heater chip 130 and the energization of the heater wire 150 are independent of each other and do not affect each other. For example, a wire hole 134 may be formed in the sidewall of the tube body 110 to lead the first wire 133 out of the first cavity 110a and then sealed by a high temperature adhesive tape to prevent air leakage.

The heater chip 130 is printed with a heating circuit 135 on the side wall of the portion of the first cavity 110a for rapid heating. Of course, in other embodiments, the heating circuit of the heating sheet 130 may be omitted, and the heating sheet 130 is made of a material with better heating performance to achieve rapid heating.

The material of the heating sheet 130 may be ceramic, zirconia or metal or the like. The thickness of the heating sheet 130 ranges from 0.35 mm to 0.6 mm to ensure the strength of the heating sheet 130 itself, while at the same time facilitating penetration into the tobacco product 20.

The heater chip 130 is connected to the first wire 133 by a brazing process, such as a high temperature brazing process, to withstand the temperature of the high temperature gas stream. The temperature control method of the surface of the heater chip 130 is generally to measure the temperature of the surface of the heater chip 130 by the rate of change in resistance of the heating circuit 135 after heating.

Specifically, in the present embodiment, the heating rod 140 is housed in the tubular body 110. The heating rod 140 may be formed of an insulating, high temperature resistant, heat conductive material, so that the heating rod 140 itself is not energized to generate heat, but conducts heat generated by the heating wire 150. For example, the heating rod 140 can be ceramic, insulated metal, or the like. The heating rod 140 may have a cylindrical shape.

Specifically, in the present embodiment, the temperature sensor 160 may be disposed on the outer side wall of the tube body 110 to conveniently and quickly and accurately measure the temperature of the heating rod 140 after heating. For example, temperature sensor 160 can be a thermistor, such as an NTC thermistor. The temperature sensor 160 detects the temperature of the heating rod and feeds it back to the control system (such as the MCU). The control system continuously adjusts the supply current according to the program command, so that the temperature of the heating rod 140 is always within the controllable range.

Specifically, in the embodiment, the outer side wall of the heating rod 140 is provided with a spiral groove 141, and the heating wire 150 is spirally wound around the outer side wall of the heating rod 140 along the spiral groove 141, and the outer side wall of the heating wire 150 and the heating rod 140. The spiral groove 141 and the inner wall of the pipe body 110 collectively form a spiral flow guiding passage 11a. The height of the side wall of the spiral groove 141 is larger than the diameter of the heating wire 150 to ensure the size of the flow guiding passage 11a. Since the heating wire 150 is spirally wound around the outer side wall of the heating rod 140 along the spiral groove 141, the air flow can be directly heated not only by the heating wire 150, but also the heat generated by the heating wire 150 can heat the heating rod 140. The heating rod 140 is heated. The gas stream can also be heated after heating.

Specifically, in the embodiment, the heating rod 140 is provided with a through hole 142 extending along the axial direction of the heating rod 140 and penetrating through the two ends thereof. One end 151 of the heating wire 150 extends from one end of the tubular body 110 into the tubular body 110, and the other end 152 of the heating wire 150 is wound around the heating rod 140, and protrudes from the end of the tubular body 110 through the through hole 142. That is, one end 151 of the heating wire 150 and the other end 152 of the heating wire 150 protrude and protrude from the same end of the tube body 110, so that the heating rod 140 can be heated from the inside of the heating rod 140 when the heating wire 150 passes through the through hole 142. heating.

The heating wire 150 is wound around the outer side wall of the heating rod 140 to heat the outside of the heating rod 140. The heating wire 150 is inserted through the through hole 142 inside the heating rod 140 to heat the inside of the heating rod 140 to heat the rod. Simultaneous and uniform heating inside and outside of 140 facilitates the heating rate of the heating rod 140. Both ends of the heating wire 150 are led out of the tube body 110, and then electrically connected to the power source or the battery 30, and can generate heat after being energized.

A side hole 143 is defined in the side wall of the heating rod 140 near one end of the filter screen 120. The side hole 143 communicates with the through hole 142. After the heating wire 150 is wound around the outer side wall of the heating rod 140, the other end of the heating wire 150 is from the side. The hole 143 extends into the through hole 142.

The screen 120 can be made of a material that is thermally conductive, and the material of the screen 120 can also have an easy-to-clean property. For example, the material of the screen 120 may be metal, stainless steel, or the like.

Specifically, in the embodiment, one end of the second cavity 110 b is open, and one end of the heating rod 140 away from the filter screen 120 is provided with a resisting plate 144 , and the through hole 142 extends through the abutting plate 144 . The outer diameter of the abutting plate 144 is larger than the inner diameter of the tubular body 110, and the abutting plate 144 abuts against the end of the tubular body 110. The air inlet 1231 may be an opening formed at an edge of the resisting plate 144 or a hole formed between the edge of the resisting plate 144 and the through hole 142. The direction indicated by the arrow in Fig. 5 is the flow direction of the airflow.

The assembly steps of the heating assembly 100 shown in FIG. 5 are roughly as follows:

First, one end of the heating wire 150 is inserted into the air inlet 1231, and then the heating wire 150 is spirally wound in the spiral groove 141 of the outer side wall of the heating rod 140, and then the other end of the heating wire 150 is taken out through the through hole 142. The assembled heating wire 150 and heating rod 140 extend into the second cavity 110b until the abutting plate 144 abuts the end of the tubular body 110. The heating wire 150 forms a flow guiding passage 11a together with the outer side wall of the heating rod 140, the spiral groove 141, and the inner wall of the pipe body 110.

Referring to FIG. 10, the heating assembly 100 of the second embodiment is spirally wound on the outer sidewall of the heating rod 140 by the heating wire 150, so that the heating wire 150 and the outer wall of the heating rod and the inner wall of the tube 110 are formed together. A spiral flow guiding passage 11a. In the present embodiment, the spiral groove 141 on the outer side wall of the heating rod 140 is omitted, which is advantageous in simplifying the manufacturing process of the heating rod 140.

The assembly steps of the heating assembly 100 shown in FIG. 10 are roughly as follows:

First, one end of the heating wire 150 is inserted into the air inlet 1231, and then the heating wire 150 is spirally wound on the outer side wall of the heating rod 140, and then the other end of the heating wire 150 is taken out through the through hole 142. The assembled heating wire 150 and heating rod 140 extend into the second cavity 110b until the abutting plate 144 abuts the end of the tubular body 110. The heating wire 150 forms a flow guiding passage 11a together with the outer side wall of the heating rod 140 and the inner wall of the tube body 110.

The heating pipe is provided with a receiving hole for receiving the tobacco product 20. The inner diameter of the receiving aperture is approximately the same size as the tobacco product 20 such that the tobacco product 20 can be placed within the receiving aperture. The heating tube is connected to the tube body 110. For example, the heat pipe can be screwed to the pipe body 110. An internal thread may be disposed on the inner side wall of the first cavity 110a, and an external thread may be disposed on the outer side wall of the heat pipe, and the internal thread is screwed with the external thread.

The approximate working process of the above heating non-burning smoking article 10 is specifically as follows:

After the startup work, the heating sheet 130 and the heating wire 150 enter the heating working state at the same time, the heating sheet 130 heats up faster, first reaches the atomization temperature of the tobacco product 20, and the heating sheet 130 directly contacts the tobacco product 20, so that the heating sheet 130 can be in a short time. After the smokable state is reached, the heating sheet 130 stops working, the heating wire 150 continues to be heated, and the outside cold air enters the lower tube body 110 through the air inlet 1231. The cold air is along the outer side wall of the heating wire 150 and the heating rod 140. The inner wall of the pipe body 110 or the flow guiding passage 11a formed by the heating wire 150, the outer side wall of the heating rod 140, the spiral groove 141 and the inner wall of the pipe body 110 flows upward, and when the flow guiding passage 11a passes, the heating wire 150 faces the cold air. Heating, the heated hot gas stream passes through the screen 120 into the upper tube body 110 to effect aerosol distillation of the tobacco product 20 in the upper tube body 110 without heating.

The heating non-combustion smoking article 10 and the heating assembly 100 thereof, the spiral heating wire 150 and the outer side wall of the heating rod and the inner wall of the pipe body 110 form a flow guiding passage 11a, so that the flow guiding passage 11a is also spiral, and the cold air passes. After the intake port 1231 is sucked into the tubular body 110, it flows along the spiral flow guiding passage 11a, and the heating wire 150 is quickly heated to heat up, and the heating wire 150 heats the airflow in the flow guiding passage 11a. The heating rod 140 is heated to prolong the contact time and contact area of the cold air with the heating wire 150 and the heating rod 140, so that the inhaled cold air can be sufficiently heated to realize the smoke distillation under the condition that the heating does not burn, and the tobacco product is improved. 20 The utilization efficiency can reach more than 50%, and the heating effect is more uniform. Moreover, when there is no smoking action, there is no suction force to allow cold air to enter the heating assembly 100, so that there is no hot air flow to heat the tobacco product 20, which can effectively reduce the loss of the tobacco product 20, and is beneficial to the relative increase in the number of smoking mouths.

The heating piece 130 is led out of the first cavity 110a through the first wire 133. The heating bar 140 and the heating piece 130 are controlled by independent circuits. After the startup, the heating bar 140 and the heating piece 130 simultaneously enter the heating state, and the heating piece 130 is heated. The atomization temperature of the tobacco product 20 is first reached, and the heating sheet 130 is directly in contact with the tobacco product 20, so that the suctionable state can be reached in a short time, then the heating sheet 130 is stopped, and the heating rod 140 continues to be heated to pass through the intake air. The cold air entering the tube body 1101 is sufficiently heated after passing through the spiral or stepped flow guiding passage 11a, and the formed hot air flow enters the first cavity 110a through the filter screen 120, and the tobacco in the first cavity 110a The article 20 is subjected to continuous uniform radiant heating so that the heating effect is faster and better.

Referring to FIG. 11, in the heating assembly 100 of the third embodiment, the heating rod 140 is electrically connected to the power source or the battery 30 through the wire 500, and generates heat after being energized. For example, the heating rod 140 may be a ceramic rod containing a heating wire and a thermistor wire, and the thermistor wire and the heating wire are integrally formed with the ceramic rod. Of course, in other embodiments, the heating rod 140 may also be a metal material with better heating performance and the like.

In this embodiment, the heating wire 150 may be omitted, and a spiral flow guiding member 400 may be sleeved on the heating rod 140 so that the outer surface of the flow guiding member 400, the heating rod 140 and the inner wall of the tube body 110 are formed together. A spiral flow guiding passage 11a. After the cold air enters the pipe body 110 through the intake port 1231, it flows along the flow guiding passage 11a (as indicated by the direction of the arrow in Fig. 11). For example, the flow guide 400 can be a spring, which is small in size, large in number of turns, and fast in temperature rise. The spring can be made of a material that is resistant to high temperatures and is easily thermally conductive.

Referring to FIG. 12, in the heating assembly 100 of the fourth embodiment, the heating rod is electrically connected to the power source or the battery 30 through the wire 500, and generates heat after being energized. The outer side wall of the heating rod 140 is protruded in the radial direction thereof to form a convex ring 600. The number of the convex rings 600 is plural, and the plurality of convex rings 600 are spaced apart along the axial direction of the heating rod 140.

Specifically, in the embodiment shown in FIG. 6 , the convex ring 600 is provided with a notch 610 , and the notches 610 on the adjacent two convex rings 600 are located on different sides of the heating rod 140 . For example, the notches 610 on adjacent two raised rings 600 are located on opposite sides of the heating rod 140. Of course, in other embodiments, the notches on two adjacent convex rings may also be located on adjacent sides. The space between the respective convex rings 600 communicates through the notches 610 to form a stepped flow guiding passage 11a.

In addition, the convex ring 600 can also realize the communication between the adjacent two convex rings 600 by opening the openings. After the cold air enters the pipe body 110 through the air inlet 1231, the space surrounded by the two adjacent convex rings 600 from the lowermost portion gradually enters the adjacent two adjacent convex rings 600 through the gap or the opening. The space then enters the space enclosed by the upper two adjacent convex rings 600 and finally enters the first cavity 110a through the screen 120 to heat the tobacco product 20 to atomize to generate smoke (Fig. 12). The direction of the arrow is shown).

Referring to FIG. 13, in the heating assembly 100 of the fifth embodiment, the heating rod 140 is electrically connected to the power source or the battery 30 through the wire 500, and generates heat after being energized. A spiral guide groove 141 is directly formed on the outer side wall of the heating rod 140. After the cold air enters the pipe body 110 through the air inlet 1231, it flows along the path of the flow guiding groove 141, and the heating rod 140 heats the cold air. .

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 (19)

A heating assembly comprising: a tube body, one end of the tube body is provided with an air inlet, the tube body is provided with a filter screen, and the filter screen divides the tube body into a first cavity and a second cavity which are in communication with each other; a heating rod is received in the second cavity, a heating space is formed between the heating rod and an inner wall of the pipe body, and a spiral or stepped flow guiding channel is formed in the heating space; The heating sheet includes a first end and a second end opposite to the first end, the second end is smaller in size than the first end, and the first end is connected to the filter screen The second end is received in the first cavity, and the heating piece is led out of the first cavity by a first wire. The heating assembly of claim 1 wherein said heater chip is integrally formed with said screen. The heating assembly according to claim 1 or 2, wherein the screen is integrally formed with the tube body; or The screen and the tube body are in a separate structure. The heating assembly of claim 1 wherein the first end of the heater chip extends through the screen into the second cavity. The heating unit according to claim 1, wherein the heating sheet is mounted on a side wall of a portion of the first cavity to be printed with a heating circuit. The heating assembly of claim 1 wherein said heater chip has a thickness in the range of 0.35 mm to 0.6 mm; and/or The heating sheet is made of ceramic, zirconia or metal. The heating assembly of claim 1 wherein said heater chip is coupled to said first conductor by a brazing process. The heating assembly according to claim 1, further comprising a heating wire wound in a spiral shape on an outer side wall of said heating rod, said heating wire, an outer side wall of said heating rod, and said The inner walls of the tubular body together form a flow guiding channel. The heating assembly according to claim 8, wherein the outer side wall of the heating rod is provided with a spiral groove, and the heating wire is spirally wound around the outer side wall of the heating rod along the spiral groove. The heating wire, the outer side wall of the heating rod, the spiral groove and the inner wall of the tube body together form a flow guiding channel. The heating assembly according to claim 9, wherein both ends of said heating wire are electrically connected to a power source or a battery, respectively; or The heating rod is electrically connected to a power source or a battery through a wire. The heating assembly according to claim 10, wherein said heating rod is provided with a through hole extending in the axial direction of said heating rod and extending through both ends thereof, one end of said heating wire One end of the tubular body extends into the tubular body, and the other end of the heating wire protrudes from the end of the tubular body through the through hole. The heating assembly according to claim 11, wherein a side hole is formed in a side wall of one end of the heating rod, the side hole is in communication with the through hole, and the other end of the heating wire is The side holes extend into the through holes. The heating assembly according to claim 1, wherein a spiral guide groove is formed on an outer wall of the heating rod, and the heating rod is connected to a power source or a battery through a wire. The heating assembly according to claim 1, wherein the heating rod is connected to a power source or a battery through a wire, and the heating rod is sleeved with a spiral flow guiding member, the flow guiding member, the heating The outer sidewall of the rod and the inner wall of the tubular body together form a flow guiding channel. The heating assembly according to claim 1, wherein the heating rod is connected to a power source or a battery through a wire, and an outer side wall of the heating rod protrudes in a radial direction thereof to form a convex ring, and the number of the convex ring is a plurality of the plurality of the convex rings are spaced apart along the axial direction of the heating rod, the convex ring is provided with an opening or a notch, and the through holes or notches on the adjacent two of the protruding rings are located in the heating Different sides of the stick. The heating assembly according to claim 1, further comprising an intake duct, wherein the intake duct includes an air inlet end and an air outlet end, and a side wall of the air intake duct is sealed, and the air outlet end is The air inlets are in communication, and the air inlet end is provided with a unidirectional air flow sensor. The heating assembly of claim 1 wherein said tubular body is made of an insulating material and is made of a thermally conductive material, and said outer wall of said tubular body is provided with a temperature sensor. The heating assembly according to claim 1, wherein a sidewall of the tube body is provided with a wire hole, and the first wire leads through the wire hole to lead out the first cavity, and the wire hole passes through the glue The paper seal prevents air leaks. A heating non-burning smoking article, characterized in that it comprises: A heating assembly according to any one of claims 1 to 18.