WO2016033734A1

WO2016033734A1 - Smoking implement

Info

Publication number: WO2016033734A1
Application number: PCT/CN2014/085744
Authority: WO
Inventors: 陈志平
Original assignee: 深圳麦克韦尔股份有限公司
Priority date: 2014-09-02
Filing date: 2014-09-02
Publication date: 2016-03-10

Abstract

Provided is a smoking implement, comprising a main body (10), an inhale part (20) and first cover body (30) oppositely arranged on the main body (10), a power supply (40) accommodated inside the main body (10), and a circuit board (50) and heating body (60) connected thereto, electrically connected to the power supply (40); the heating body (60) comprises an accommodating member (61), a heat-generating member (62), and an electrode (63); the accommodating member (61) is internally provided with an accommodating space (610), and has an outer surface (612) away from the accommodating space (610); the heat-generating member (62) is arranged on the outer surface of the accommodating member (61); the heat-generating member (62) comprises a heat-generating layer (621) and an insulating layer (622); the heat-generating layer (621) is formed on one side of the insulating layer (622); the range of resistance of the heat-generating layer (621) is 0.2 Ohm to 0.9 Ohm; the insulating layer (622) is wrapped around the outer surface (612) of the accommodating member (61), and the heat-generating layer (621) is fitted to the accommodating member (61); the electrode (63) is electrically connected to the heat-generating layer (621); the power supply (40) is a battery, and its ratio range is 15C to 30C.

Description

Smoking set

[Technical Field]

The present invention relates to an electronic device, and more particularly to a smoking article.

【Background technique】

With the deepening of smoking and health research, some scientific studies have shown that the most harmful substances in cigarettes are caused by the thermal cracking of tobacco when tobacco is burned. In order to solve the above problems, a group of companies such as Philip Morris Tobacco Co., Ltd. have developed electric heating smoking articles, which by means of heating tobacco, let the tobacco release components such as nicotine, and avoid harmful substances produced by tobacco burning. However, current electric heating smoking articles generally have a slow heating rate and a complicated heating structure.

[Summary of the Invention]

Based on this, it is necessary to provide a smoking device with a faster heating speed.

A smoking device includes a body, a suction portion disposed opposite to the body, a first cover body, a power source housed in the body, a circuit board electrically connected to the power source, and a heating body connected to the circuit board, the heating body including the receiving body The heat generating component and the electrode are provided with a receiving space inside and an outer surface facing away from the receiving space. The heat generating component is disposed on the outer surface of the receiving component, the heat generating component comprises a heat generating layer and an insulating layer, and the heat generating layer is formed on the insulating layer. On the side, the resistance layer has a resistance range of 0.2 ohm-0.9 ohm, the insulating layer is coated on the outer surface of the accommodating member, and the heat generating layer is attached to the accommodating member, and the electrode is electrically connected to the heat generating layer, and the power source is a battery, and the magnification range is 15C-30C.

In one of the embodiments, the heat generating layer is formed on the side of the insulating layer facing the accommodating member by a printing process.

In one embodiment, the smoking article further includes a controller housed in the body, and the controller is electrically connected to the power source and the circuit board for automatically adjusting the output power of the battery.

In one of the embodiments, the heat generating member is sintered to the outer surface of the accommodating member.

In one of the embodiments, the receiving member and the insulating layer are both made of ceramic.

In one embodiment, the smoking article further includes a second cover that is disposed on the suction portion, and the second cover is provided with a magnet and is detachably mounted on the suction portion by magnetic attraction.

In one embodiment, the body is provided with an air guiding tube, the air suction portion is provided with an air suction passage, and the receiving member further comprises a first end adjacent to the first cover body and a second end opposite to the first end, the first end The opening is arranged to face the first cover body, and the second end is provided with an air outlet hole communicating with the receiving space, and the air outlet hole and the air suction passage are communicated through the air guiding tube.

In one embodiment, the receiving member further has an inner surface facing the receiving space, and the first cover body is provided with a pressing protrusion facing the receiving space, the pressing protrusion blocking opening and forming with the inner surface of the receiving member There is a gap.

In one embodiment, the circuit board includes an electrode pair corresponding to the electrode of the heating body and a temperature sensor facing the heating body, the receiving member further includes a groove formed at the second end, and the temperature sensor is received in the groove for sensing Measure the temperature of the container.

In one embodiment, the smoking device further includes a controller housed in the body, the controller is electrically connected to the power source and the circuit board, and the body is further provided with a switch electrically connected to the controller, a temperature adjustment button and a display screen. The switch is used to control the start and stop of the smoking device, the temperature adjustment button is used to adjust the output power of the power source, and the display screen is used to display the temperature of the heating body and the power of the power source.

The above-mentioned smoking implement adopts a battery with a magnification range of 15C-30C as a power source, and controls the resistance range of the heat generating layer to 0.2 ohm-0.9 ohm, the heat conduction efficiency is high, and the heating stability of the smoking utensil can be ensured, and the battery is not easily heated by the circulation. damage.

[Description of the Drawings]

1 is an exploded perspective view of a smoking article of an embodiment;

Figure 2 is a cross-sectional view of an embodiment of the smoking article;

3 is a cross-sectional view of a heating body and a circuit board of an embodiment of the smoking article;

Figure 4 is a cross-sectional view of an embodiment of the heating body;

Figure 5 is an enlarged view of the portion A shown in Figure 4;

Figure 6 is an enlarged view of a portion B shown in Figure 2;

Figure 7 is a flow chart showing a method of manufacturing a heating body according to an embodiment;

Figure 8 is a flow chart showing the steps of fixing the heat generating component of the heating body to the accommodating member;

Figure 9 is a flow chart showing a method of sensing the temperature of an object to be heated in an inhaler according to an embodiment.

【detailed description】

As shown in FIG. 1 and FIG. 2 , the smoking device 100 of the embodiment includes a body 10 , an air suction portion 20 disposed at one end of the body 10 , a first cover 30 disposed at an end of the body 10 away from the air suction portion 20 , and a receiving body. The power source 40 in the body 10, the circuit board 50 electrically connected to the power source 40, and the heating body 60 connected to the circuit board 50. In the present embodiment, the smoking article 100 is a smokeless smoking article.

The body 10 is substantially cylindrical and has an air guiding tube 101 therein. One end of the body 10 is provided with a flap 11 and a screw 12 that fixes the flap 11 to the body 10, and the flap 11 is rotatable about the screw 12.

The main body 10 is also provided with a switch 13, a temperature adjustment button 14, and a display screen 15 at intervals. The switch 13 is used to control the activation and deactivation of the smoking device 100, the temperature adjustment button 14 is used to adjust the output power of the power source 40, and the display screen 15 is used to display the temperature of the heating body 60 and the amount of power of the power source 40.

The air suction portion 20 is disposed at an end of the body 10 away from the blocking piece 11 and has an air suction passage 201 communicating with the air guiding tube 101. In the present embodiment, the intake unit 20 is a cigarette holder. In one embodiment, the smoking article 100 further includes a second cover 70 that is disposed on the suction portion 20. The second cover 70 is provided with a magnet 71 and detachably fixed to the suction portion 20 by magnetic attraction to protect the suction portion 20. It can be understood that when the air suction portion 20 does not include the magnetic conductive material, the second cover 70 can be locked on the air suction portion 20 through the engaging structure.

The first cover 30 is disposed at one end of the body 10 away from the air suction portion 20 , and a pressing protrusion 31 is protruded from a side of the first cover 30 facing the air suction portion 20 .

The power source 40 is received in the middle of the body 10 for supplying power to the smoking device 100. In the present embodiment, the power source 40 is a high-rate battery capable of discharging a large current, and the magnification ranges from 15C to 30C. The air guiding tube 101 is located at one side of the power source 40.

The circuit board 50 is disposed at an end of the power source 40 adjacent to the first cover 30 and electrically connected to the power source 40. As shown in FIG. 3, the circuit board 50 has a plate shape, and a side facing away from the power source 40 is provided with spaced electrode pairs 51 and a temperature sensor 52. The temperature sensor 52 is located between the electrode pairs 51 and spaced apart from the electrode pair 51.

The heating body 60 is received in the body 10 and detachably inserted into the circuit board 50 to achieve electrical connection with the circuit board 50. The flap 11 of the body 10 secures the heating body 60 within the body 10 such that the heating body 60 abuts against the circuit board 50.

As shown in FIGS. 3-5, the heating body 60 includes a accommodating member 61, a heat generating member 62, and an electrode 63.

A receiving space 610 is formed in the accommodating member 61 for accommodating the object to be heated. In this embodiment, the accommodating member has a cylindrical shape, and the object to be heated is flue-cured tobacco leaves. The accommodating member 61 has an inner surface 611 surrounding the accommodating space 610 and an outer surface 612 facing away from the accommodating space 610. The accommodating space 610 is for accommodating the flue-cured tobacco leaves. The receiving member 61 includes a first end 613 and a second end 614 opposite the first end 613. The first end 613 is provided with an opening 630 that faces the first cover 30 and communicates with the receiving space 610. The pressing protrusion 31 of the first cover 30 is disposed on the opening 630 and is pressed against the tobacco in the receiving space 610. As shown in FIG. 6, a gap 615 is formed between the pressing projection 31 and the inner surface 611 of the accommodating member 61. The second end 614 closes the receiving space 610 and is provided with an air outlet 616, a recess 617 that is recessed toward the receiving space 610, and a pair of receiving slots 618. The air outlet 616 communicates with the accommodating space 610 and communicates with the air intake passage 201 through the air duct 101. The pair of receiving grooves 618 are spaced apart from each other and are recessed toward the receiving space 610 for receiving the electrode 63. The groove 617 is disposed between the two receiving grooves 618 for receiving the temperature sensor 52 to sense the temperature of the receiving member 61 through the temperature sensor 52. The air outlet 616 is located between a receiving groove 618 and a recess 617. The air outlet 616 is spaced apart from the groove 617 and the receiving groove 618.

The heat generating element 62 includes a heat generating layer 621 and an insulating layer 622 formed on one side of the insulating layer 622 by a printing process. The heat generating component 62 is wrapped around the outer surface 612 of the accommodating member 61, and the heat generating layer 621 is attached to the accommodating member 61. The shape of the heat generating layer 621 can be designed according to customer needs. In the present embodiment, the heat generating layer 621 is a heat conducting wire that reciprocates back. It can be understood that the shape of the heat generating layer 621 can be designed according to customer needs. For example, the heat generating layer 621 can also be a grid-shaped heat conducting wire.

In the present embodiment, the accommodating member 61 and the heat generating member 62 are sintered together to increase the contact area of the heat generating layer 621 with the accommodating member 61. The accommodating member 61 and the insulating layer 622 are each made of ceramic. Specifically, materials such as alumina, aluminum nitride, and silicon nitride may be used, and the heat generating layer 621 may be selected from a high melting point metal such as tungsten. The resistance of the heat generating layer 621 may be 0.2 ohms to 0.9 ohms. In order to increase the heating rate as much as possible, the side wall of the heating body 60 should be thin, and the side wall thickness may be from 0.6 mm to 1.5 mm, preferably from 0.8 mm to 1.0 mm.

The two electrodes 63 are respectively received in the two receiving grooves 618 and electrically connected to the heat generating layer 621 of the heat generating element 62. The electrode 63 is electrically connected to the electrode pair 51 on the circuit board 50.

In one embodiment, the heating body 60 further includes a conductive member 64 for conducting the electrode 63 and the heat generating layer 621. The conductive member 64 is in the form of a sheet, and is disposed on the second end 614 of the receiving member 61. One end is electrically connected to the heat generating layer 621, and the other end is bent and received in the receiving groove 618 and adhered to the electrode 63. It is electrically connected to the electrode 63. In other embodiments, the conductive member 64 may not be provided, but the end of the heat generating layer 621 may be bent, connected to the electrode 63 across the second end 614, or the trench may be opened at the second end 614. A conductive material is disposed in the trench to electrically connect the electrode 63 to the heat generating layer 621.

It can be understood that the smoking device 100 can further include a controller 80 that is received in the body 10 and electrically connected to the power source 40 and the circuit board 50. The controller 80 is electrically connected to the switch 13, the temperature adjustment button 14 and the display screen 15. To control the starting and closing of the smoking device 100, adjust the output power of the power source 40, and control the display screen 15 to display the temperature of the heating body 60 and the amount of power of the power source 40.

When the smoking tool 100 is in operation, the power source 40 outputs a voltage, and the electrode 63 of the heating body 60 is electrically connected to the electrode pair 51 on the circuit board 50, thereby generating a current in the heat generating layer 621 of the heat generating element 62 electrically connected to the electrode 63, thereby generating a current. Heat. The tobacco material is heated in the accommodating space 610 of the accommodating member 61 to generate smoke. When the user inhales at the inhalation portion 20, the airflow enters the receiving space 610 through the gap 615 between the pressing protrusion 31 and the inner surface 611 of the receiving member 61, and the flue gas is introduced into the air guiding passage 102 through the air outlet hole 616. Then, it enters the inhalation passage 201 through the air guiding passage 102, and finally enters the user's mouth.

Electronic flue-cured tobacco operating temperature range of 170 ° C -230 ° C. When the user adjusts the temperature, each time the temperature adjustment button 14 is pressed, the temperature rises or decreases by 1-2 °C. The power display is divided into 5 grids, and each grid represents 20% of the electricity. When the battery is as low as 20%, the smoking device 100 automatically alarms, such as the battery symbol flashes or the indicator light flashes. When heating, the indicator light glows red; when the temperature is stable, the indicator light glows green; when the user leaves, the smoking device 100 will enter the low power consumption mode, and the indicator light will be blue; after the user picks up the smoking device 100 again, the smoking device 100 Return to the working state, the indicator light shows the corresponding status. The duty cycle of the smoking article 100 is 10 minutes. After 10 minutes, the user still does not use, and the smoking device 100 will automatically shut down. When turned on, display 15 shows that the temperature is in low heat mode (default is 190 °C mode), blue light; when heated to medium heat mode (210 ° C), display 15 glows green; heated to high heat mode (230 ° C) When the display 15 glows red. When the smoking device 100 is fully charged, the indicator light flashes blue; when the battery is partially charged, the indicator light flashes green; when the battery is low, the indicator light flashes red; when charging, the indicator light glows red.

In the smoking article 100 of the present invention, since the heat generating layer 621 of the heating body 60 is attached to the accommodating member 61, and the accommodating member 61 and the heat generating member 62 are sintered together, the contact area is large, the heat transfer efficiency is high, and the effect of heating the tobacco material is obtained. it is good. The heat generating layer 621 is formed on the insulating layer 622 by a printing process, and the heat generating layer 621 is located between the insulating layer 622 and the receiving member 61, and is short-circuited, safe and reliable; and the receiving member 61 contacting the tobacco material is made of aluminum oxide and aluminum nitride. Environmentally friendly ceramic materials such as silicon nitride are harmless to the human body under high temperature heating.

In addition, since the smoking device 100 further includes the controller 80, it is only necessary to store the difference between the surface temperature of the heating body 60 and the internal temperature of the heating body 60 in the controller 80 (specifically, it can be measured through the production process), and The surface temperature of the heating body 60 sensed by the temperature sensor 52 on the accommodating member 61, and then the internal temperature of the heating body 60 is calculated, which is convenient to manufacture and low in cost. The temperature of the heating body 60 is sensed by the temperature sensor 52 and displayed on the display screen 15 to facilitate the user to adjust the temperature of the heating.

Through the above design, the technical solution can achieve the power of more than 200W when the temperature is rapidly started, reach the temperature requirement of tobacco baking within 8 seconds of starting, and the power consumption is small and the performance is excellent in the heat preservation stage. The following is reflected in several sets of experimental data.

experiment one:

The power supply is selected from different battery rates for sample comparison test. Each of the multiples takes 10, and the power is turned on for 30 seconds. The power is cycled for 10,000 cycles in a 30-second power-off mode to check the service life.

Condition: The power supply is two batteries, the voltage is 8.6V, and the resistance of the heating layer is 0.5 ohm.

Sample	Battery rate (C)	Results after the cycle test
1	14	The current is too small and the receiving parts cannot heat up quickly
2	15	No damage, the receiving parts can heat up quickly
3	16	No damage, the receiving parts can heat up quickly
4	17	No damage, the receiving parts can heat up quickly
5	18	No damage, the receiving parts can heat up quickly
6	19	No damage, the receiving parts can heat up quickly
7	20	No damage, the receiving parts can heat up quickly
8	twenty one	No damage, the receiving parts can heat up quickly
9	twenty two	No damage, the receiving parts can heat up quickly
10	twenty three	No damage, the receiving parts can heat up quickly
11	twenty four	No damage, the receiving parts can heat up quickly
12	25	No damage, the receiving parts can heat up quickly
13	26	No damage, the receiving parts can heat up quickly
14	27	No damage, the receiving parts can heat up quickly
15	28	No damage, the receiving parts can heat up quickly
16	29	No damage, the receiving parts can heat up quickly
17	30	No damage, the receiving parts can heat up quickly
18	31	The internal resistance of the battery has too much influence on the circuit, and 6 of them cannot work normally.

As can be seen from the above table, when the battery's magnification is lower than 15C, the need for rapid heating cannot be met, and when the battery rate is higher than 30C, the battery is damaged.

Experiment 2:

The heating body 60 is designed to be tested for different resistance values, each of which has 10 resistance values, is energized for 30 seconds, and is cycled for 10,000 cycles in a 30-second power-off mode to detect the service life.

Condition: The power supply uses two batteries and the voltage is 8.6V. Specifically, the battery can be a lithium battery, and the full-voltage voltage of each lithium battery is 4.1-4.3V. As the power is reduced, the voltage can be continuously reduced to 3.5V. Therefore, the voltage should actually be a range value during the experiment. , that is, 7-8.6V.

Sample	Battery rate ( C )	Heating wire resistance (ohm)	Results after the cycle test
1	20	0.1	6 batteries overcurrent damage
2	20	0.2	No damage
3	20	0.3	No damage
4	20	0.4	No damage
5	20	0.5	No damage
6	20	0.6	No damage
7	20	0.7	No damage
8	20	0.8	No damage
9	20	0.9	No damage
10	20	1.0	The current is too small and the receiving parts cannot heat up quickly
11	25	0.1	3 batteries overcurrent damage
12	25	0.2	No damage
13	25	0.3	No damage
14	25	0.4	No damage
15	25	0.5	No damage
16	25	0.6	No damage
17	25	0.7	No damage
18	25	0.8	No damage
19	25	0.9	No damage
20	25	1.0	The current is too small and the receiving parts cannot heat up quickly

As can be seen from the above table, the resistance value of the heat generating layer is designed to be 0.2 ohm-0.9 ohm, which can meet the power requirement for the rapid heating of the heating body, and does not require a too high power supply voltage. If the resistance is too small, the discharge current requirement of the battery is too high, and the requirements of the circuit control system for automatically adjusting the output power will also be increased; if the resistance is too large, the supply voltage will be required to be increased. In the field of electronic cigarettes, the product is small in size. The size of the power supply battery is also small, and it is difficult to use a high-power, high-voltage battery.

Experiment 3:

The heating body is designed to be tested for different resistance values. When the power supply uses two 4.3V batteries and the battery rate is 20, the temperature of the test heating body rises to the temperature of the tobacco baking (250 degrees). .

Sample	Heat resistance (ohms)	Time (seconds)
1	0.2	2
2	0.3	2
3	0.4	3
4	0.5	4
5	0.6	5
6	0.7	6
7	0.8	7
8	0.9	8

As can be seen from the above table, in the case where the battery ratio is 20, when the resistance of the heat generating layer is 0.2 ohm to 0.9 ohm, the temperature of the heating body can be rapidly increased in 2 seconds to 8 seconds.

In summary, the battery with a power range of 15C-30C is selected as the power source, and the resistance range of the heat generating layer is controlled to 0.2 ohm-0.9 ohm, which meets the requirements of rapidly heating the tobacco leaf, and can ensure the stability of the heating of the smoking device. Not easy to damage quickly due to cyclic heating.

7 is a flow chart of a method of manufacturing a heating body for a smoking article according to an embodiment, the method comprising the following steps:

S200, providing a receiving member and an insulating layer, the receiving member being formed by sintering and provided with a receiving space for accommodating the object to be heated and an outer surface facing away from the receiving space, and the insulating layer is formed by casting.

Specifically, the steps of providing the accommodating member include mixing and molding. The mixing process adopts an organic solvent system, and the receiving member is formed into a cylindrical shape after sintering; the step of providing the insulating layer includes mixing and casting, the mixing process of the insulating layer is the same as the mixing process of the receiving member, and the insulating layer is casted. Pre-formed, formed into a film, temporarily not sintered, the thickness of the casting can be adjusted according to actual needs. The forming of the accommodating member and the formation of the insulating layer may be performed simultaneously, or the accommodating member may be formed first to form an insulating layer. In this embodiment, the order of addition of the mixture is the additive, the main oxide and the corresponding colloid, and the mixing period is 3-4 days.

S400, printing a heat generating layer on the insulating layer to form a heat generating member. Specifically, the heat generating layer is formed on one side of the insulating layer by a printing process, and the heat generating layer has a line structure that reciprocates back. In other embodiments, the heat generating layer may also have a grid shape.

S600, the heat generating component is wound around the outer surface of the accommodating member, wherein the heat generating layer is attached to the accommodating member. Specifically, as shown in FIG. 8, the step includes:

S602, an adhesive is disposed on the heat generating layer. Specifically, the adhesive may be uniformly disposed on the heat generating layer by painting or spraying or sputtering.

S604, the heat generating layer is adhered to the outer surface of the accommodating member by an adhesive to fix the heat generating member to the accommodating member. In the present embodiment, the heat generating layer is disposed on the outer surface of the accommodating member so as to surround the accommodating member.

S606, removing the adhesive. In the present embodiment, the heating body can be heated at 300 degrees for 24 hours to evaporate the adhesive between the heat generating member and the accommodating member.

S608, sintering the heat generating component and the receiving member. In the present embodiment, the heating body can be placed in a mixed gas of nitrogen gas and hydrogen gas and calcined at a high temperature of 1,650 degrees for 27 hours.

S800, an electrode electrically connected to the heat generating layer is formed on the receiving member.

In an embodiment, before the step S800, the heating body manufacturing method further comprises the steps of:

S700, grinding the inner surface of the receiving member. In the present embodiment, the heating body can be calcined at a high temperature of 1400 ° C for 17 hours in a mixed gas of nitrogen and hydrogen to lower the thickness of the side wall of the heating body. In other embodiments, the glaze layer may also be formed on the inner surface after grinding, or the glaze layer may be directly formed on the inner surface without grinding.

Since the accommodating member needs to be combined with the heat generating member before sintering, the side wall of the accommodating member tends to be thick, otherwise the accommodating member is liable to be damaged when being combined with the heat generating member, and therefore, the thickness of the side wall of the accommodating member is generally difficult to control at 1.2. Below mm, the thickness of the sidewall of the entire heating body is difficult to control below 1.4 mm, resulting in a thick sidewall of the entire heating body. In the present embodiment, after the heat generating member and the accommodating member are sintered, the inner surface of the accommodating member is ground to thin the side wall of the accommodating member, so that the thickness of the side wall of the heating body can be reduced.

The accommodating member and the insulating layer are both made of ceramics. Specifically, materials such as alumina, aluminum nitride, and silicon nitride may be used, and the heat generating layer may be made of a high melting point metal such as tungsten. The thickness of the insulating layer, the shape of the heat generating pot, the shape of the heat generating layer, and the resistance of the heat generating layer can be adjusted according to actual needs in the design stage. The resistance of the heat generating layer is 0.2 ohms to 0.9 ohms. In order to increase the heating rate as much as possible, the side walls of the heating body should be thin, and the side wall thickness may be from 0.6 mm to 1.5 mm, preferably from 0.8 mm to 1.0 mm.

In the manufacturing method of the heating body of the present invention, the heat generating layer is formed by a printing process, and the shape and the resistance value can be arbitrarily adjusted, thereby minimizing the resistance value, increasing the heating rate without being easily blown, and ensuring a large contact area between the heat generating layer and the accommodating member. The heating layer is evenly distributed; the heat generating layer is located between the insulating layer and the accommodating member, and the short circuit is not generated, and is safe and reliable; the accommodating member contacting the tobacco material is made of an environmentally-friendly ceramic material such as alumina, aluminum nitride or silicon nitride, and is heated at a high temperature. It is harmless to the human body.

Figure 9 is a flow chart showing a method of sensing the temperature of an object to be heated in an inhaler according to an embodiment. The method includes the following steps:

S10, the controller acquires a relation W of the surface temperature T1 of the accommodating member and the internal temperature T2 of the accommodating member. Specifically, the relation W obtained by the experiment is previously stored in the controller of the inhaler. It can be understood that a memory electrically connected to the controller may be disposed in the inhaler, and the relationship W is stored in the memory, and the controller may acquire the relationship W from the memory by calling.

S20, the temperature sensor acquires the real-time surface temperature t1 of the accommodating member and transmits it to the controller. Specifically, the temperature sensor can be utilized to sense the real-time surface temperature t1 of the container and transmit the sensed real-time surface temperature t1 to the controller.

S30, the controller calculates the real-time internal temperature t2 of the accommodating member according to the real-time surface temperature t1 by using the relation W. The real-time internal temperature t2 is the temperature of the object to be heated.

At S40, the controller controls the display to display the real-time internal temperature t2.

In one embodiment, the inhaler further includes a switch, a temperature adjustment button, and a display screen. The controller is electrically connected to the switch, the temperature adjustment button and the display to control the start and stop of the inhaler, adjust the output power, and control the display to display the temperature of the object to be heated.

Since the inhaler further comprises a controller, only the difference between the surface temperature T1 of the accommodating member and the internal temperature T2 of the accommodating member (measured in the production process) can be stored in the controller, and can be disposed on the accommodating member. The temperature sensor senses the real-time surface temperature t1 of the container, and then calculates the internal temperature t2 of the container and displays it on the display screen, while the real-time internal temperature t2 is the temperature of the object to be heated. It is convenient for the user to regulate the heating temperature and change the taste.

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

Claims

A smoking device includes a body, a suction portion disposed opposite to the body, a first cover body, a power source received in the body, a circuit board electrically connected to the power source, and a circuit board connected to the circuit board The heating body is characterized in that the heating body includes a receiving member, a heat generating member and an electrode, and the receiving member is provided with a receiving space inside and has an outer surface facing away from the receiving space, and the heat generating member is disposed on the receiving member On the outer surface, the heat generating component includes a heat generating layer and an insulating layer, and the heat generating layer is formed on one side of the insulating layer, and the heat generating layer has a resistance value ranging from 0.2 ohm to 0.9 ohm, and the insulating layer includes Covering the outer surface of the accommodating member and the heat generating layer is attached to the accommodating member, the electrode is electrically connected to the heat generating layer, and the power source is a battery, and the magnification ranges from 15C to 30C.
The smoking article according to claim 1, wherein the heat generating layer is formed on a side of the insulating layer facing the accommodating member by a printing process.
The smoking article according to claim 2, wherein the smoking device further comprises a controller housed in the body, the controller being electrically connected to the power source and the circuit board for automatically adjusting the device The output power of the battery.
The smoking article according to claim 3, wherein the heat generating member is sintered on an outer surface of the accommodating member.
A smoking article according to claim 3, wherein said receiving member and said insulating layer are each made of ceramic.
The smoking article according to claim 3, wherein the smoking article further comprises a second cover body disposed on the air suction portion, the second cover body is provided with a magnet and is detachably mounted by magnetic attraction It is provided on the suction portion.
The smoking article according to claim 3, wherein the body is provided with an air guiding tube, the air suction portion is provided with an air suction passage, and the receiving member further comprises a first end adjacent to the first cover body And the second end opposite to the first end, the first end is provided with an opening, the opening is facing the first cover body, and the second end is provided with an air outlet communicating with the receiving space, The air vent is communicated with the air intake passage through the air duct.
The smoking article according to claim 7, wherein the accommodating member further has an inner surface facing the accommodating space, and the first cover body is provided with a pressing protrusion facing the accommodating space, the affixing A pressing protrusion blocks the opening and forms a gap with an inner surface of the receiving member.
The smoking article according to claim 7, wherein said circuit board comprises an electrode pair correspondingly connected to said electrode of said heating body and a temperature sensor spaced apart from said pair of electrodes, said housing further comprising a groove is formed in the second end, and the temperature sensor is received in the groove for sensing the temperature of the receiving member.
The smoking article according to claim 9, wherein the body is further provided with a switch electrically connected to the controller, a temperature adjustment button and a display screen, wherein the switch is used for controlling the start of the smoking device. And closing, the temperature adjustment button is used to adjust the output power of the power source, and the display screen is used to display the temperature of the heating body and the power of the power source.