WO2018094637A1 - Heating and non-combusting smoking apparatus and heating assembly thereof - Google Patents

Abstract

A heating and non-combusting smoking apparatus (10) and a heating assembly (100) thereof. The heating and non-combusting smoking apparatus (10) also comprises a heating pipe (200). The heating assembly (100) comprises a pipe body (110), a thermally-conductive rod (120), and a heating wire (130). The spiral heating wire (130), the outer wall of the thermally-conductive rod (120), and the inner wall of the pipe body (110) jointly form a flow-guiding channel (110a).

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 articles used in the heating non-combustion technology generally include a heating assembly for heating the inhaled cold air, which is the main energy for baking the tobacco product. However, conventional heating components do not sufficiently heat the inhaled cold air.

[Summary of the Invention]

Based on this, it is necessary to provide a heated non-burning smoking article and a heating assembly thereof which can sufficiently heat the inhaled cold air.

A heating assembly comprising:

a tube body, one end of the tube body is provided with an air inlet;

a heat conducting rod housed in the tube; and

The heating wire is spirally wound on the outer side wall of the heat conducting rod, and the heating wire and the outer side wall of the heat conducting rod together form a flow guiding channel.

A heating non-burning smoking article comprising:

a heating assembly as described above;

The heat pipe is provided with a receiving hole for receiving the tobacco product, and the heat pipe is connected to the pipe body.

The heating non-combustion smoking device and the heating assembly thereof, the spiral heating wire and the outer side wall of the heat conducting rod and the inner wall of the pipe body form a flow guiding channel, so the guiding channel is also spiral, and the cold air is sucked into the pipe through the air inlet After the body flows along the spiral flow guiding channel, the heating wire is used to quickly heat up the temperature, and the heating wire and the heat conducting rod are heated by the heating wire, and the heat conducting rod is heated and heated. Together, the cold air sucked through the air inlet is heated to extend the contact time and contact area of the cold air with the heating wire and the heat conducting rod, so that the inhaled cold air can be sufficiently heated.

[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 non-combustion smoking article in an embodiment;

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

Figure 3 is a cross-sectional view of the heating assembly in an embodiment;

Figure 4 is a cross-sectional view of the heating assembly in another embodiment;

Fig. 5 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.

Please refer to FIG. 1, which is a heating non-combustion smoking article 10 in an embodiment. The heating non-combustion smoking article 10 directly heats the tobacco product 20 by heating without burning, but does not burn to generate smoke, which can achieve satisfactory satisfaction of the cigarette, and can not burn the cigarette to avoid harmful substances in the burning process. Production and inhalation. 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.

Referring to FIG. 2 and FIG. 3 together, in one embodiment, the heating assembly 100 is mainly used for heating the sucked cold air. The heating assembly 100 includes a tubular body 110, a thermally conductive rod 120, a heating wire 130, and a screen 140.

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. 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. 5 , specifically to the embodiment, the heating assembly 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 130. 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.

The heat conductive rod 120 is housed in the tube body 110. The heat conducting rod 120 may be formed of an insulating, high temperature resistant, heat conductive material, so that the heat conducting rod 120 itself does not generate heat, but conducts heat generated by the heating wire 130. For example, the thermally conductive rod 120 can be ceramic, insulated metal, or the like. The thermally conductive rod 120 can be in the shape of a cylinder.

Specifically, in the present embodiment, the temperature sensor 150 may be disposed on the outer sidewall of the tube body 110 to conveniently and quickly and accurately measure the temperature of the thermally conductive rod 120 after heating. For example, temperature sensor 150 can be a thermistor, such as an NTC thermistor. The temperature sensor 150 detects the temperature of the heat conducting rod 120 and feeds it back to the control system (such as the MCU). The control system continuously adjusts the power supply current according to the program command, so that the temperature of the heat conducting rod 120 is always within the controllable range.

Specifically, in the embodiment, the outer side wall of the heat conducting rod 120 is provided with a spiral groove 121. The heating wire 130 is spirally wound around the outer side wall of the heat conducting rod 120 along the spiral groove 121, and the outer side wall of the heating wire 130 and the heat conducting rod 120. The spiral groove 121 and the inner wall of the pipe body 110 together form a flow guiding passage 110a. The height of the side wall of the spiral groove 121 is larger than the diameter of the heating wire 130 to ensure the size of the flow guiding passage 110a. Since the heating wire 130 is spirally wound around the outer side wall of the heat conducting rod 120 along the spiral groove 121, the air flow can be directly heated not only by the heating wire 130, but also the heat generated by the heating wire 130 can heat the heat conducting rod 120, and the heat conducting rod 120 is heated. The gas stream can also be heated after heating.

Specifically, in the embodiment, the heat conducting rod 120 is provided with a through hole 122 extending along the axial direction of the heat conducting rod 120 and penetrating through the two ends thereof. One end 131 of the heating wire 130 extends from one end of the tubular body 110 into the tubular body 110, and the other end 132 of the heating wire 130 protrudes from the end of the tubular body 110 through the through hole 122. That is, one end 131 of the heating wire 130 and the other end 132 of the heating wire 130 protrude and protrude from the same end of the tube body 110. Therefore, when the heating wire 130 passes through the through hole 122, the heat conducting rod 120 can be performed from the inside of the heat conducting rod 120. heating.

The portion of the heating wire 130 wound around the outer wall of the heat conducting rod 120 can heat the outer side of the heat conducting rod 120. The portion of the heating wire 130 penetrating the through hole 122 inside the heat conducting rod can heat the inner side of the heat conducting rod 120 to make the heat conducting rod 120 Simultaneous and uniform heating inside and outside is advantageous for accelerating the heating rate of the heat conducting rod 120.

Specifically, in the present embodiment, the abutting plate 123 may be disposed at the other end of the heat conducting rod 120, and the through hole 122 penetrates the resisting plate 123. One end of the inner side wall of the tubular body 110 extends inwardly along the radial direction thereof to form a resisting portion 113. The inner diameter of the resisting portion 113 is smaller than the outer diameter of the resisting plate 123, and the resisting portion 113 is for abutting against the resisting plate 123 to prevent the heat conducting rod. 120 falls from the tube body 110. The air inlet 1231 may be a hole opened in the middle of the resisting plate 123 or an opening opened in the edge of the resisting plate 123. The number of the air inlets 1231 may be two, and of course other numbers may be used.

Specifically, in the embodiment, the filter body 140 is further disposed in the tube body 110. The filter screen 140 divides the tube body 110 into an upper cavity 111a and a lower cavity 112a, and the upper cavity 111a and the lower cavity 112a. Connected to each other. The thermally conductive rod 120 is located within the lower chamber 112a for holding the tobacco product 20. The screen 140 is mainly used to filter debris generated by the tobacco product 20 placed in the upper cavity 111a, and the like, to prevent debris from falling into the heating wire 130 and the heat conducting rod 120 under the screen 140. The height of the upper cavity 111a is two-thirds of the effective length of the tobacco product 20.

Specifically, in the present embodiment, one end of the heat conducting rod 120 adjacent to the filter screen 140 is provided with an extension portion 124 that is in contact with the screen 140. For example, the extension 124 can fit snugly to the screen 140. A side hole 1241 communicating with the through hole 122 is defined in the side wall of the extension portion 124, and the other end of the heating wire 130 extends from the side hole 1241 into the through hole 122. Specifically, the extension portion 124 may be integrally formed with the heat conductive rod 120 or may be separate from the heat conductive rod 120. The material of the extension portion 124 is the same as that of the heat conductive rod 120.

The material of the filter screen 140 may be a material that is easy to conduct heat and is easy to clean, such as metal, stainless steel, and the like. The heat generated by the heating wire 130 can be quickly transferred to the screen 140 through the heat conducting rod 120, and the screen 140 is in direct contact with the tobacco product 20, so that the screen 140 can be used for tobacco products. 20 heating to improve heating efficiency.

Specifically, in the embodiment, the tubular body 110 includes an upper tubular body 111 and a lower tubular body 112. One end of the upper tubular body 111 is sleeved at one end of the lower tubular body 112, and the filter mesh 140 is located at the upper tubular body 111 and the lower tubular body 112. between. The upper chamber 111a is formed by the screen 140 and the upper tube 111, and the lower chamber 112a is formed by the screen 140 and the lower tube 112. The upper tubular body 111 can be screwed to the lower tubular body 112 in a threaded manner.

The upper tube body 111 is for holding the tobacco product 20, and the inner diameter of the upper tube body 111 corresponds to the diameter of the tobacco product 20. For example, the inner diameter of the upper tubular body 111 may be the same as the diameter of the tobacco product 20, or may be slightly larger than the diameter of the tobacco product 20 to ensure that the tobacco product 20 can be smoothly placed into the cavity while the outer side wall of the tobacco product 20 does not. It is too far from the inner side wall of the upper tube 111 to affect the heating effect. The height of the upper tubular body 111 is less than or equal to two-thirds of the effective length of the tobacco product 20. The effective length of the tobacco product 20 refers to the length of the portion of the tobacco product 20 from which the filter is removed.

Specifically, in the present embodiment, the lower tube body 112 is provided near the end portion of the upper tube body 111 with a boss portion 1121 extending outward in the radial direction. Therefore, the inner diameter of the end portion of the lower tubular body 112 adjacent to the upper tubular body 111 is larger than the inner diameter of the other end of the lower tubular body 112, so that the flow area of the airflow is enlarged, and the contact area of the hot airflow with the tobacco product 20 is enlarged, which is advantageous for sufficient The tobacco product 20 is heated. The upper tube body 111 is approximately the same size as the tobacco product 20 such that one end of the tobacco product 20 can be received within the upper tube body 111.

The assembly method of the above heating assembly 100 is roughly as follows:

First, one end 131 of the heating wire 130 is inserted into the air inlet 1231, and then the heating wire 130 is spirally wound in the spiral groove 121 of the outer wall of the heat conducting rod 120, and then the other end of the heating wire 120 is taken out through the through hole 122. . The assembled heating wire 130 and the heat conducting rod 120 protrude from the upper end of the lower tube body 112 into the lower tube body 112 until the abutting plate 123 abuts against the abutting portion 113; then the screen 140 is assembled to the upper portion of the upper tube body 111. The screen 140 is brought into contact with the extension 124 of the heat conducting rod, and finally the upper tube 111 is screwed to the upper portion of the lower tube 112, so that the screen 140 is in close contact with the extension 124.

Referring to FIG. 4 , in other embodiments, only the heating wire 130 may be disposed, and the heating wire 130 is spirally wound on the outer sidewall of the heat conducting rod 120 to make the heating wire 130 and the outer sidewall and the tube of the heat conducting rod 120 . The inner walls of the body 110 collectively form a flow guiding passage 110a. In the present embodiment, the spiral groove 121 on the outer side wall of the heat conductive rod 120 is omitted, which is advantageous for simplifying the manufacturing process of the heat conductive rod 120.

Specifically, in the embodiment shown in FIG. 4, the screen 140 is integrally formed with the tube body 110. The screen 140 divides the tubular body 110 into an upper cavity 111a and a lower cavity 112a, and the upper cavity 111a is also integrally formed with the lower cavity 112a. Therefore, the assembly step can be saved during assembly.

Specifically, in the embodiment shown in FIG. 4 , one end of the lower cavity 112 a is opened, and the other end of the heat conducting bar 120 is provided with a resisting plate 123 , and the through hole 122 penetrates the resisting plate 123 . The outer diameter of the abutting plate 123 is larger than the inner diameter of the tubular body 110, and the abutting plate 123 abuts against the end of the tubular body 110. The air inlet 1231 may be a hole opened in the middle of the resisting plate 123 or an opening opened in the edge of the resisting plate 123. The direction indicated by the arrow in Fig. 4 is the flow direction of the airflow.

The assembly steps of the heating assembly 100 shown in Figure 4 are generally as follows:

First, one end 131 of the heating wire 130 is inserted into the air inlet 1231, and then the heating wire 130 is spirally wound on the outer side wall of the heat conducting rod 120. The heating wire 130 is combined with the outer wall of the heat conducting rod 120 and the inner wall of the tube 110. The flow guiding channel 110a is formed, and then the other end 132 of the heating wire 130 is taken out through the through hole 122, and then the assembled heating wire 130 and the heat conducting rod 120 are inserted into the lower cavity 112a until the plate 123 and the tube body are resisted. The ends of 110 abut.

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. Referring to FIG. 3, an internal thread may be disposed on the inner side wall of the upper cavity 111a, 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 and non-burning smoking articles is as follows:

When the pumping action occurs, the outside cold air enters the lower tube body 112 through the air inlet 1231. The cold air is along the outer wall of the heating wire 130, the heat conducting rod 120, and the inner wall of the tube body 110 or by the heating wire 130 and the heat conducting rod. The flow guiding channel 110a formed by the outer wall of the 120, the spiral groove 121 and the inner wall of the pipe body 110 flows upward. When passing through the flow guiding channel 110a, the heating wire 130 heats the cold air, and the heated hot air flows through the filter into the upper pipe. In the body 111, the tobacco product 20 in the upper tube body 111 is subjected to a smoke distillation grill without heating.

The heating non-combustion smoking article 10 and the heating assembly 100 thereof, the spiral heating wire 130 and the outer side wall of the heat conducting rod 120 and the inner wall of the tube body 110 together form a flow guiding channel 110a, so that the guiding channel 110a is also spiral, cold air After being sucked into the tubular body 110 through the air inlet 1231, it flows along the spiral flow guiding passage 110a, and the heating wire 130 is quickly heated to heat up, and the airflow in the guiding passage 110a is heated by the heating wire 130. Heating with the heat conducting rod 120 extends the contact time and contact area of the cold air with the heating wire 130 and the heat conducting rod 120, so that the inhaled cold air can be sufficiently heated to realize the smoke distillation grilling without heating. The utilization efficiency of the tobacco product 20 can reach more than 50%, and the heating and grilling 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 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 (15)

A heating assembly comprising: a tube body, one end of the tube body is provided with an air inlet; a heat conducting rod housed in the tube; and The heating wire is spirally wound on the outer side wall of the heat conducting rod, and the heating wire forms a flow guiding channel together with the outer side wall of the heat conducting rod and the inner wall of the tube body. The heating assembly according to claim 1, wherein the outer side wall of the heat conducting rod is provided with a spiral groove, and the heating wire is spirally wound around the outer side wall of the heat conducting rod along the spiral groove. The heating wire, the outer side wall of the heat conducting rod, the spiral groove and the inner wall of the tube body together form a flow guiding channel. The heating assembly according to claim 1, wherein the heat conducting rod is provided with a through hole extending along an axial direction of the heat conducting rod and extending through the two ends thereof, and one end of the heating wire is 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 3, wherein the tube body is further provided with a filter screen, the filter screen separating the tube body into an upper cavity and a lower cavity, wherein the heat conducting bar is located In the lower chamber, the upper chamber is for holding tobacco products. A heating assembly according to claim 4, wherein said heat conducting rod is provided with an extension near one end of said screen, said extension being in contact with said screen, said side wall of said extension A side hole communicating with the through hole is opened, and the other end of the heating wire protrudes from the side hole into the through hole. The heating assembly of claim 1 wherein said tubular body comprises an upper tubular body and a lower tubular body, one end of said upper tubular body being sleeved at one end of said lower tubular body, said filter mesh being located at said Between the tubular body and the lower tubular body, the upper tubular body is for holding a tobacco product, and an inner diameter of the upper tubular body corresponds to a diameter of the tobacco product. The heating assembly of claim 6 wherein said upper tubular body has a height less than or equal to two-thirds of the effective length of said tobacco product. 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. 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 of claim 4 wherein said screen is integrally formed with said tubular body. The heating assembly according to claim 6, wherein said lower tubular body is provided with a boss portion extending radially outwardly from an end portion of said upper tubular body. The heating assembly according to claim 9, further comprising a controller, wherein the temperature sensor detects temperature information of the heat conducting rod and feeds back to the controller, and the controller according to the feedback temperature information Control the supply current. The heating assembly of claim 8 wherein said inlet end is provided with a unidirectional air flow sensor. The heating assembly of claim 13 wherein said one-way airflow sensor is a single-point microphone. A heating non-burning smoking article, characterized in that it comprises: A heating assembly according to any one of claims 1 to 14.