WO2018148904A1

WO2018148904A1 - Electronic cigarette device and puff count calculation method therefor

Info

Publication number: WO2018148904A1
Application number: PCT/CN2017/073786
Authority: WO
Inventors: 陈家太; 宋海龙
Original assignee: 深圳市赛尔美电子科技有限公司
Priority date: 2017-02-16
Filing date: 2017-02-16
Publication date: 2018-08-23

Abstract

Provided are an electronic cigarette device (100) and a puff count calculation method therefor. The electronic cigarette device (100) comprises a cylindrical heating member (110), a heating assembly (120), an air admission tube (130), a temperature sensing wire (140), and a circuit board (150). The temperature sensing wire (140) comprises a probe end (141) extending into an air-flow channel and positioned close to one end of the heating assembly (120) to detect a temperature of an air flow.

Description

Method for detecting the number of times of smoking in electronic smoking articles and electronic smoking articles

[Technical Field]

The invention relates to the technical field of smoking articles, in particular to a method for detecting the number of times of suction of an electronic smoking article and an electronic smoking article.

【Background technique】

The conventional method for detecting the number of puffs of an electronic smoking article is generally to provide a microphone at the inlet of the airflow of the smoking article, and the negative pressure generated during the suction is detected by the microphone to detect the number of puffs. However, when the microphone is used to detect the negative pressure generated during the suction, it is necessary to have sufficient air flow to pass through and generate a large negative pressure value, which is suitable for the electronic smoking device with a large airflow.

However, for electronic cigarettes for baking new tobacco, due to the structure of the new tobacco and airflow path, the air flow during suction is small, and it is generally difficult for the microphone to sense the negative pressure generated during suction, which is easy to cause pumping. The number of suctions is not accurate.

[Summary of the Invention]

Based on this, it is necessary to provide a method for detecting the number of puffs of an electronic smoking article and an electronic smoking article which can effectively improve the detection accuracy of the number of puffs.

An electronic smoking article comprising:

a heating cylinder, the heating cylinder has a receiving cavity;

a heating assembly, the heating assembly being received in the receiving cavity;

An intake duct, one end of the intake duct is sleeved at one end of the heating cylinder, and the intake duct communicates with the receiving cavity to form an air flow passage;

a temperature sensing line, one end of the temperature sensing line is a probe end, the probe end is disposed in the air flow channel, and is located near one end of the heating component, and the probe end is used to detect the airflow The temperature of the airflow within the channel; and

a circuit board electrically connected to the heating assembly, and the circuit board is electrically connected to the other end of the temperature sensing line.

A method for detecting the number of times of suction of an electronic smoking article, comprising:

Energizing the heating assembly, the heating assembly generates heat after being energized, and heat heats the air surrounding the heating assembly;

When the pumping is started, the temperature value detected by the probe end of the temperature sensing line is a first temperature value;

When the pumping is stopped, the temperature value detected by the probe end of the temperature sensing line is a second temperature value, and a temperature difference exists between the second temperature value and the first temperature value;

The circuit board receives a temperature difference generated between the first temperature value and the second temperature value detected by the temperature sensing line and converts it into an inductance signal, and obtains the number of times of suction by detecting the inductance signal.

An electronic smoking article comprising:

a heating cylinder having a receiving cavity for receiving a tobacco product;

An intake duct, one end of the intake duct is sleeved at one end of the heating cylinder, and the intake duct communicates with the receiving cavity to form an air flow passage, and a sidewall of the intake duct is opened hole;

a temperature sensing line, the temperature sensing line includes a probe end, the probe end extending into the air inlet duct through the through hole, and located near the heating tube;

a circuit board electrically connected to the heating cylinder, and the circuit board is electrically connected to the other end of the temperature sensing line.

A method for detecting the number of puffs of an electronic smoking article, comprising:

And energizing the heating cylinder, and directly heating the tobacco product contained in the receiving cavity to be electrically heated after being energized;

When the pumping is stopped, the temperature value detected by the probe end of the temperature sensing line is a second temperature value, and the second temperature value is lower than the first temperature value, so that the first temperature value and the second temperature are There is a temperature difference between the temperature values; and

In the above method for detecting an electronic smoking article and an electronic smoking article, the heating component generates heat after being energized, and the heat heats the air surrounding the heating component. Because the probe end of the temperature sensing line is disposed in the airflow channel and is located near one end of the heating component, heat generated by energization of the heating component is radiated to the probe end of the temperature sensing wire. When the suction is started, the temperature detected by the probe end is the first temperature value. At the time of suction, under the action of the suction force, a gas flow flowing in the direction of the suction force is formed in the housing chamber. When the suction is stopped, the temperature of the airflow detected by the probe end of the temperature sensing line changes, the temperature value detected by the probe end is the second temperature value, and there is a temperature difference between the second temperature value and the first temperature value. The circuit board receives the temperature difference and converts it into an inductance signal. By detecting the inductance signal, the number of times of suction is obtained. Therefore, it is not necessary to pass the induction negative pressure, and only the temperature change of the probe end of the temperature sensing line can be used to detect the temperature change, thereby obtaining the number of times of suction, thereby effectively improving the number of times of suction. The number of puffs is detected accurately.

[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.

1 is a schematic structural view of an electronic smoking article in a first embodiment;

Figure 2 is a cross-sectional view of the electronic smoking device of Figure 1;

3 is a schematic structural view of an electronic smoking article in a second embodiment;

Figure 4 is a cross-sectional view of the electronic smoking device shown in Figure 3;

FIG. 5 is a schematic structural view of an electronic smoking article in a third embodiment; FIG.

Figure 6 is a schematic structural view of the electronic smoking device shown in Figure 5;

7 is a schematic flow chart of a method for detecting the number of times of suction of an electronic smoking article in an embodiment;

Figure 8 is a cross-sectional view of the electronic smoking article in the fourth embodiment;

Figure 9 is a cross-sectional view of the electronic smoking article in the fifth embodiment;

FIG. 10 is a schematic flow chart of a method for detecting the number of times of suction of an electronic smoking article in another 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 FIGS. 1 and 2 , the electronic smoking device 100 of the first embodiment includes a heating cylinder 110 , a heating assembly 120 , an intake duct 130 , a temperature sensing line 140 , and a circuit board 150 . The heating cylinder 110 has a receiving cavity 110a, and the heating assembly 120 is received in the receiving cavity 110a.

Specifically, in the first embodiment, a filter 111 is further disposed in the heating cylinder 110. The filter 111 divides the heating cylinder 110 into an upper cavity and a lower cavity, and the upper cavity and the lower cavity communicate with each other. The heating assembly 120 is located within the lower chamber for holding the tobacco product. The screen 111 is mainly used to filter debris or the like generated by the tobacco product placed in the upper chamber to prevent debris from falling into the heating unit 120 below the screen 111.

Specifically, in the first embodiment, the heating assembly 120 includes a heat conducting rod 121 and a heating wire 122. The heating wire 122 is wound around the heat conducting rod 121, and both ends of the heating wire 122 are electrically connected to the circuit board 150, respectively. The heating cylinder 110 can be made of an insulating, heat-conductive material, in which case the heating cylinder 110 primarily conducts heat generated by the heating wire 122. For example, the heating cylinder 110 may be an easily thermally conductive metal, ceramic or other medium, and the heating cylinder 110 may also be an insulated aluminum material or the like. Circuit board 150 can be a PCBA board.

The material of the filter 111 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 122 can be quickly transmitted to the screen 111 through the heat conducting rod 121, and the screen 111 is in direct contact with the tobacco product, so that the screen 111 can heat the tobacco product. Improve heating efficiency.

A spiral groove 123 may be formed on the outer side wall of the heat conducting rod 121. The spiral groove 123 extends along the axial direction of the heat conducting rod 121, and the heating wire 122 is spirally wound around the heat conducting rod 121 along the spiral groove 123, and the heating wire 122, The outer side wall of the heat conducting rod 121, the side wall of the spiral groove 123 and the inner side wall of the heating cylinder 110 together form a flow guiding passage. The height of the side wall of the spiral groove 123 is larger than the diameter of the heating wire 122 to ensure the size of the flow guiding passage. Since the heating wire 122 is spirally wound around the outer side wall of the heat conducting rod 121 along the spiral groove 123, the air flow is not directly heated by the heating wire 122. The heat generated by the heating wire 122 can also heat the heat conducting rod 121, and the heat conducting rod 121 heats up. The airflow can also be heated later. The heater wire 122 is electrically connected to the circuit board via a wire 124.

One end of the intake duct 130 is sleeved at one end of the heating cylinder 110, and the intake duct 130 communicates with the receiving cavity 110a to form an air flow passage. When the pumping action occurs, the outside cold air can enter the intake duct 130 under the action of the suction force, and enter the receiving chamber 110a, and the airflow flows in the airflow passage.

The temperature sensing line 140 includes a probe end 141 disposed within the airflow passage and located adjacent the end of the heating assembly 120 for detecting the temperature of the airflow within the airflow passage. The circuit board 150 is electrically connected to the heating assembly 120, and the circuit board 150 is electrically connected to the other end of the temperature sensing line 140.

Specifically, in the first embodiment, the sidewall of the intake duct 130 is provided with a through hole 130a. The probe end 141 of the temperature sensing line 140 extends into the intake duct 130 through the through hole 130a and is located at the end of the heating assembly 120. At the office. Specifically, the temperature sensing line 140 can be an NTC or a thermocouple.

The intake duct 130 includes a first duct 131 and a second duct 132, and the first duct 131 and the second duct 132 are disposed at a predetermined angle. For example, the first duct 131 and the second duct 132 are disposed at an acute angle. Of course, in other embodiments, the first duct 131 may also be disposed perpendicular to the second duct 132. The first pipe 131 is sleeved at one end of the heating cylinder 110, and one end of the second pipe 132 is disposed at the other end of the first pipe 131 and communicates with the first pipe 131.

Specifically, the through hole 130a is opened on the sidewall of the first duct 131, and the probe end 141 of the temperature sensing line 140 protrudes into the first duct 131 through the through hole 130a. Therefore, the probe end 141 is closer to the heating assembly 120. When not pumping, the heating component 120 radiates more heat to the probe end 141, and the first temperature value detected by the probe end 141 is larger. After the probe end 141 of the temperature sensing wire 140 protrudes into the first pipe 131 through the through hole 130a, the through hole 130a is sealed with a sealant to prevent air leakage.

Of course, referring to FIG. 3 and FIG. 4 , in the second embodiment, the through hole 130 a is opened on the sidewall of the second pipe 132 , and the probe end 141 of the temperature sensing wire 140 extends into the second pipe 132 through the through hole 130 a . . Therefore, the distance of the probe end 141 from the heating assembly 120 is farther than in the first embodiment, and the first temperature value detected by the probe end 141 is smaller than in the first embodiment.

In the second embodiment, the heating unit 120 includes a heating rod 121' and a heat conducting wire 122'. The heating rod 121' is electrically connected to the circuit board 150 via a wire 124, and the heat conducting wire 122' is spirally wound around the heating rod 121'.

Specifically, in the first and second embodiments, the electronic smoking device 100 further includes an insulation seat 160, and the heat insulation seat 160 is sleeved on the other end of the heating cylinder 110.

After the two types of electronic smoking devices 100 are energized, the heating assembly 120 generates heat that heats the air surrounding the heating assembly 120. Because the probe end 141 of the temperature sensing line 140 extends into the air intake duct 130 and is located near the end of the heating assembly 120, heat generated by the energization of the heating assembly 120 is radiated to the probe end 141 of the temperature sensing line 140. When the suction is started, the temperature detected by the probe end 141 is the first temperature value.

When pumping, the suction force causes a flowing airflow to form in the airflow passage, and the outside cold air enters through the intake duct 130. When the pumping is stopped, the temperature of the airflow passing through the probe end 141 of the temperature sensing line 140 is lowered, the probe end 141 detects that the lowered temperature value is the second temperature value, and there is a temperature difference between the second temperature value and the first temperature value. The circuit board 150 receives the temperature difference and converts it into an inductance signal, and obtains the number of times of suction by detecting the inductance signal. Therefore, it is not necessary to induce the negative pressure, and only the temperature change of the probe end 141 of the temperature sensing line 140 can be used to obtain the number of times of suction. Therefore, the detection accuracy of the number of suctions can be effectively improved.

Referring to FIG. 5 and FIG. 6 , the electronic smoking device 100 of the third embodiment, in the third embodiment, the heating cylinder 110 includes a main body 111 and a heating sleeve 112 , and the air inlet duct 130 and the heating sleeve 112 are respectively sleeved on the main body. Both ends of 111. The through hole 130a is opened on the side wall of the heating sleeve 112, and the probe end 141 of the temperature sensing line 140 extends through the through hole 130a into the heating sleeve 112 and is located near the end of the heating assembly 120. That is, in the third embodiment, the probe end 141 of the temperature sensing line 140 is located at the upper end of the heating assembly 120.

Specifically, in the third embodiment, the electronic smoking device 100 further includes two screens 111. The two screens 111 are received in the heating cylinder 110. The two screens 111 are spaced apart and spaced apart, and the temperature sensing line 140 is The probe end 141 is located between the two screens 111 to prevent the probe end 141 from directly contacting the tobacco product and affecting the detection accuracy. Two screens 111 are located above the heating assembly 120, and the heating cylinder 110 is divided into an upper chamber and a lower chamber.

After the electronic smoking device 100 is energized, the heating assembly 120 generates heat that heats the air surrounding the heating assembly 120. Because the probe end 141 of the temperature sensing line 140 extends into the heating jacket 112 and is located near the end of the heating assembly 120, heat generated by the energization of the heating assembly 120 is radiated to the probe end 141 of the temperature sensing line 140. When the suction is started, the temperature detected by the probe end 141 is the first temperature value.

When pumping, the suction force causes a flowing airflow to form in the airflow passage, and the air heated by the heating assembly 120 flows upward. When the suction is stopped, the temperature of the airflow passing through the probe end 141 of the temperature sensing line 140 is increased, and the probe end 141 detects that the elevated temperature value is the second temperature value, and the second temperature value exists between the second temperature value and the first temperature value. The temperature difference, the circuit board 150 receives the temperature difference and converts it into an inductance signal, and obtains the number of times of suction by detecting the inductance signal, so that it is not necessary to pass the induction negative pressure, and only the temperature change of the probe end 141 of the temperature sensing line 140 can be used to obtain the suction. The number of times can therefore effectively improve the detection accuracy of the number of puffs.

Please refer to FIG. 7 , which is a method for detecting the number of times of smoking of the electronic smoking device 100 according to an embodiment, which includes the following steps:

In step S110, the heating component 120 is energized, and the heating component 120 generates electricity to generate heat, and the heat heats the air around the heating component 120. Because the probe end 141 of the temperature sensing line 140 extends into the airflow channel and is near the end of the heating assembly 120, the heat generated by the energization of the heating assembly 120 is radiated to the probe end 141 of the temperature sensing line 140, so the probe end 141 detects The temperature value is higher than when the power is not applied.

In step S120, when the suction is started, the temperature detected by the probe end 141 of the temperature sensing line 140 is the first temperature value. The heat generated by the heating assembly 120 after energization causes the temperature within the heating cylinder 110 to rise until the temperature reaches a level at which the tobacco product can be atomized to produce smoke. When not pumping, if it is not pumped, the temperature detected by the probe end of the temperature sensing line will rise to a stable temperature value. When sucking, the air in the receiving chamber forms a flowing air flow under the action of the suction force.

Step S130, when the pumping is stopped, the temperature value detected by the probe end 141 of the temperature sensing line 140 is a second temperature value, and there is a temperature difference between the second temperature value and the first temperature value. Specifically, in the first embodiment shown in FIG. 1 and FIG. 2 and the second embodiment shown in FIG. 3 and FIG. 4, the through hole 130a is opened on the side wall of the intake duct 130, and the probe of the temperature sensing line 140 is provided. The end 141 extends into the intake duct 130, i.e., the probe end 141 is located below the heating assembly 120. Therefore, when sucking, the cold air enters the intake duct 130 and then flows through the probe end 141, and the second temperature value detected by the probe end 141 is lower than the first temperature value. Specifically, in the third embodiment shown in FIG. 5 and FIG. 6 , the through hole 130 a is opened on the heating sleeve 112 , that is, the probe end 141 is located above the heating assembly 120 . Therefore, when pumping, the airflow heated by the heating assembly 120 flows through the probe end 141, and the second temperature value detected by the probe end 141 is higher than the first temperature value.

In step S140, the circuit board 150 receives the temperature difference generated between the first temperature value and the second temperature value detected by the temperature sensing line 140 and converts it into an inductance signal, and obtains the number of times of suction by detecting the inductance signal.

Referring to FIG. 8 , which is the electronic smoking device 200 of the fourth embodiment, the electronic smoking device 200 of the fourth embodiment is heated by conduction heating. Specifically, the electronic smoking device 200 includes a heating cylinder 210, an intake duct 220, a temperature sensing line 230, and a circuit board 240.

The heating cylinder 210 has a receiving cavity 210a for receiving tobacco products. The heating cylinder 210 generates heat after being energized, and the generated heat directly heats the tobacco product. For example, the heating cylinder 210 can be made of a material that is resistant to high temperatures and is easily thermally conductive. The heating cylinder 210 is electrically connected to the circuit board 240 through a wire 211.

One end of the intake duct 220 is sleeved at one end of the heating cylinder 210, and the intake duct 220 communicates with the receiving cavity 210a to form an air flow passage, and the side wall of the intake duct 220 is provided with a through hole 220a.

The temperature sensing line 230 includes a probe end 231 that extends into the intake duct 220 through the through hole 220a and is located adjacent to the heating cylinder 210. The circuit board 240 is electrically connected to the heating cylinder 210, and the circuit board 240 is electrically connected to the other end of the temperature sensing line 230.

Specifically, in the fourth embodiment, the intake duct 220 includes a first duct 221 and a second duct 222, and the first duct 221 and the second duct 222 are disposed at a predetermined angle. For example, the first duct 221 and the second duct 222 are disposed at an acute angle. Of course, in other embodiments, the first duct 221 may also be disposed perpendicular to the second duct 222. The first pipe 221 is sleeved at one end of the heating cylinder 210, and one end of the second pipe 222 is disposed at the other end of the first pipe 221 and communicates with the first pipe 221. The through hole 220a is opened on the sidewall of the first pipe 221, and the probe end 231 of the temperature sensing wire 230 protrudes into the first pipe 221 through the through hole 220a. Therefore, the probe end 231 of the temperature sensing line 230 is closer to the end of the heating cylinder 210, and the heat generated after the heating cylinder 210 is energized is radiated to the probe end 231.

Of course, referring to FIG. 9, in the electronic smoking device 200 in the fifth embodiment, the intake duct 220 includes a first duct 221 and a second duct 222, and the first duct 221 and the second duct 222 are disposed at a predetermined angle. For example, the first duct 221 and the second duct 222 are disposed at an acute angle. Of course, in other embodiments, the first duct 221 may also be disposed perpendicular to the second duct 222. The first pipe 221 is sleeved at one end of the heating cylinder 210, and one end of the second pipe 222 is disposed at the other end of the first pipe 221 and communicates with the first pipe 221. The through hole 220a is opened on the sidewall of the second pipe 222, and the probe end 231 of the temperature sensing wire 230 protrudes into the second pipe 222 through the through hole 220a. Therefore, the probe end 231 of the temperature sensing line 230 is farther from the end of the heating cylinder 210 than the fourth embodiment.

After the electronic smoking device 200 is energized, the heating cylinder 210 generates heat, and the heat is directly transmitted to the tobacco product. Since the probe end 231 of the temperature sensing line 230 extends into the intake duct 220 and is located near the end of the heating cylinder 210, heat generated by the energization of the heating cylinder 210 is radiated to the probe end 231 of the temperature sensing line 230. When the suction is started, the temperature detected by the probe end 231 is the first temperature value.

When pumping, the suction force causes a flowing airflow to form in the airflow passage, and the cold air enters from the intake duct 220. When the pumping is stopped, the temperature of the airflow passing through the probe end 231 of the temperature sensing line 230 is lowered, the probe end 231 detects that the lowered temperature value is the second temperature value, and there is a temperature difference between the second temperature value and the first temperature value. The circuit board 240 receives the temperature difference and converts it into an inductance signal, and obtains the number of times of suction by detecting the inductance signal. Therefore, it is not necessary to pass the induction negative pressure, and only the temperature change of the probe end 231 of the temperature sensing line 230 can be used to obtain the number of times of suction. Therefore, the detection accuracy of the number of suctions can be effectively improved.

Please refer to FIG. 10 , which is a method for detecting the number of puffs of the electronic smoking device 200 in another embodiment, including the following steps:

In step S210, the heating cylinder 210 is energized, and the heating cylinder 210 is energized to directly conduct the conductive heating of the tobacco product contained in the receiving cavity 210a. Since the tobacco product is directly contained in the accommodating chamber 210a, the heat generated after the heating cylinder 210 is energized can be directly conducted to the tobacco product for heating. Because the probe end 231 of the temperature sensing line 230 extends into the airflow channel and is adjacent to one end of the heating cylinder 210, the heat generated by the heating of the heating cylinder 210 is radiated to the probe end 231 of the temperature sensing line 230, so the probe end 231 detects The temperature value reached is higher than when the power is not applied.

In step S220, when the suction is started, the temperature detected by the probe end 231 of the temperature sensing line 230 is the first temperature value. The heat generated after the heating cylinder 210 is energized causes the temperature of the heating cylinder 210 to rise continuously until the temperature reaches a level at which the tobacco product can be atomized to generate smoke.

Step S230, when the pumping is stopped, the temperature value detected by the probe end 231 of the temperature sensing line 230 is a second temperature value, and the second temperature value is lower than the first temperature value, so that the first temperature value and the second temperature value are between There is a temperature difference. Specifically, in the two embodiments shown in FIG. 8 and FIG. 9 , the through hole 220 a is opened on the sidewall of the intake duct 220 , and the probe end 231 of the temperature sensing line 230 extends into the intake duct 220 , that is, the probe end 231 . Located below the heating cylinder 210. Therefore, when the cold air enters the intake duct 220 and then flows through the probe end 231 during suction, when the suction is stopped, the second temperature value detected by the probe end 231 is lower than the first temperature value.

Step S240, the circuit board 240 receives the temperature difference generated between the first temperature value and the second temperature value detected by the temperature sensing line 230 and converts it into an inductance signal, and obtains the number of times of suction by detecting the inductance signal.

Claims

An electronic smoking article comprising:

a heating cylinder having a receiving cavity;

a heating assembly, the heating assembly being received in the receiving cavity;

An intake duct, one end of the intake duct is sleeved at one end of the heating cylinder, and the intake duct communicates with the receiving cavity to form an air flow passage;

a temperature sensing line, the temperature sensing line includes a probe end, the probe end is disposed in the air flow channel, and is located near an end of the heating component, and the probe end is configured to detect an airflow in the airflow channel Temperature; and

a circuit board electrically connected to the heating assembly, and the circuit board is electrically connected to the other end of the temperature sensing line.
The electronic smoking article according to claim 1, wherein a through hole is defined in a sidewall of the intake duct, and a probe end of the temperature sensing line extends into the intake duct through the through hole. And located near the end of the heating assembly.
The electronic smoking article according to claim 2, wherein the intake duct comprises a first duct and a second duct, and the first duct and the second duct are disposed at a predetermined angle, the first duct One end of the second pipe is disposed at the other end of the first pipe and communicates with the first pipe, and the through hole is opened at the side of the first pipe On the wall, the probe end of the temperature sensing line extends into the first duct through the through hole.
The electronic smoking article according to claim 2, wherein the intake duct comprises a first duct and a second duct, and the first duct and the second duct are disposed at a predetermined angle, the first duct One end of the second pipe is disposed at the other end of the first pipe and communicates with the first pipe, and the through hole is opened at the side of the second pipe On the wall, the probe end of the temperature sensing line extends into the second duct through the through hole.
The electronic smoking article according to claim 1, wherein the heating cylinder comprises a main body and a heating jacket, and the air inlet duct and the heating jacket are respectively sleeved at two ends of the main body, and the heating sleeve is A through hole is defined in the sidewall, and the probe end of the temperature sensing line extends through the through hole into the heating jacket and is located near an end of the heating assembly.
The electronic smoking article according to claim 5, further comprising two screens, wherein the two screens are received in the heating cylinder, and the probe end of the temperature sensing line is located on the two screens between.
The electronic smoking article according to claim 1, wherein the heating assembly comprises a heat conducting rod and a heating wire, and the heating wire is wound around the heat conducting rod, and both ends of the heating wire and the circuit board are respectively Electrical connection.
The electronic smoking article according to claim 7, 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 heat conducting rod along the spiral groove.
The electronic smoking article according to claim 1, wherein the heating assembly comprises a heating rod and a heat conducting wire, the heating rod is electrically connected to the circuit board by a wire, and the heat conducting wire is spirally wound around the Heat the rod.
The electronic smoking article according to claim 1, further comprising an insulated seat, the insulated seat cover being disposed at the other end of the heating cylinder.
An electronic smoking article comprising:

a heating cylinder having a receiving cavity for receiving a tobacco product;

An intake duct, one end of the intake duct is sleeved at one end of the heating cylinder, and the intake duct communicates with the receiving cavity to form an air flow passage, and a sidewall of the intake duct is opened hole;

a temperature sensing line, the temperature sensing line includes a probe end, the probe end extending into the air inlet duct through the through hole, and located near the heating tube;

a circuit board electrically connected to the heating cylinder, and the circuit board is electrically connected to the other end of the temperature sensing line.
The electronic smoking article according to claim 11, wherein the intake duct comprises a first duct and a second duct, and the first duct and the second duct are disposed at a predetermined angle, the first duct One end of the second pipe is disposed at the other end of the first pipe and communicates with the first pipe, and the through hole is opened at the side of the first pipe On the wall, the probe end of the temperature sensing line extends into the first duct through the through hole.
The electronic smoking article according to claim 11, wherein the intake duct comprises a first duct and a second duct, and the first duct and the second duct are disposed at a predetermined angle, the first duct One end of the second pipe is disposed at the other end of the first pipe and communicates with the first pipe, and the through hole is opened at the side of the second pipe On the wall, the probe end of the temperature sensing line extends into the second duct through the through hole.
A method for detecting the number of puffs of an electronic smoking article according to claim 1, comprising:

Energizing the heating assembly, the heating assembly generates heat after being energized, and heat heats the air surrounding the heating assembly;

When the pumping is started, the temperature value detected by the probe end of the temperature sensing line is a first temperature value;

When the pumping is stopped, the temperature value detected by the probe end of the temperature sensing line is a second temperature value, and a temperature difference exists between the second temperature value and the first temperature value;

The circuit board receives a temperature difference generated between the first temperature value and the second temperature value detected by the temperature sensing line and converts it into an inductance signal, and obtains the number of times of suction by detecting the inductance signal.
The method of claim 14 wherein said first temperature value is lower than said second temperature value.
The method of claim 14 wherein said first temperature value is higher than said second temperature value.
A method for detecting the number of times of smoking of an electronic smoking article according to claim 11, comprising:

And energizing the heating cylinder, and directly heating the tobacco product contained in the receiving cavity to be electrically heated after being energized;

When the pumping is started, the temperature value detected by the probe end of the temperature sensing line is a first temperature value;

When the pumping is stopped, the temperature value detected by the probe end of the temperature sensing line is a second temperature value, and the second temperature value is lower than the first temperature value, so that the first temperature value and the second temperature are There is a temperature difference between the temperature values; and

The circuit board receives a temperature difference generated between the first temperature value and the second temperature value detected by the temperature sensing line and converts it into an inductance signal, and obtains the number of times of suction by detecting the inductance signal.