CN216931916U - Aerosol generating device and system thereof - Google Patents

Abstract

An aerosol-generating device and system thereof for heating an aerosol-generating article to generate an aerosol, comprising a power supply and a heating assembly, the power supply being for supplying power to the heating assembly; the heating assembly comprises an electromagnetic induction emitter (200), a first and a second induction-heatable body, the first and second induction-heatable bodies being located inside the heated aerosol-generating article (600) when the heated aerosol-generating article (600) is in a normal use position; the electromagnetic induction transmitter (200) may generate an alternating electromagnetic field to inductively heat the first and second induction-heatable bodies, thereby heating the aerosol-generating article.

Description

Aerosol generating device and system thereof

Technical Field

The utility model relates to the field of novel tobacco, in particular to an aerosol generating device and a system thereof.

Background

Heated cigarettes are a type of new tobacco product and are an option for consumers to reduce the harm that traditional tobacco presents. Conventional tobacco rods are typically cigarettes in a random tobacco array. In the development of new tobacco, one development direction was to make improvements in Heatable (Heatable) directly on the traditional tobacco rod in order to maximize the retention of the flavor of the traditional tobacco. However, the technical problem is that the cigarettes in disorder are difficult to insert compared with the existing internal heating smoking set, and the external heating smoking set has the problem of insufficient heating.

The existing cigarette heating appliance mainly utilizes the principle of resistance heating, and the heating modes mainly comprise inner core heating, peripheral heating and internal and external mixed heating. The smoking set of inner core heating, owing to make cigarette be convenient for insert, generally use the heating member of pin type, the cross sectional area of its heating member needs lessly for cigarette is at the in-process of heating, and the cigarette medium that is close to the heating member is overheated, and the cigarette medium of keeping away from the heating member is difficult to by the heating, makes cigarette heating inhomogeneous.

Increasing the contact area between the heating body and the tobacco media optimizes the above problem, but increasing the contact area by directly changing the shape of the heating body makes it difficult to insert the tobacco rod. Meanwhile, the shape of the resistance-type heating body is changed, and each heating body is required to be communicated with a power supply system, so that any change of the heating body easily causes the internal wiring of the smoking set to be too complex, and the miniaturization and stable operation of the appliance are not facilitated.

Therefore, in order to increase the heated area of an aerosol-generating article for sufficient heating of the smoking medium without increasing the complexity and volume of the aerosol-generating device, there is a need to develop a new type of aerosol-generating device.

SUMMERY OF THE UTILITY MODEL

The present invention aims to increase the heated area of an aerosol-generating article to allow sufficient heating of the smoking medium without increasing the complexity and volume of the aerosol-generating device, and it is desirable to develop a new type of aerosol-generating device.

In order to solve the technical problems, the utility model adopts the following technical scheme:

an aerosol-generating device for heating an aerosol-generating article to generate an aerosol, comprising a power supply and a heating assembly, the power supply being for supplying power to the heating assembly; the heating assembly comprises an electromagnetic induction emitter and an inductor, the inductor comprises a first induction heating body and a second induction heating body, and when the heated aerosol generating product is located at a normal use position, the first induction heating body and the second induction heating body are located inside the heated aerosol generating product; the electromagnetic induction transmitter may generate an alternating electromagnetic field to inductively heat the first and second induction-heatable bodies, thereby heating the aerosol-generating article.

Further, the ratio of the spacing between the first and second induction-heatable bodies to the diameter of the aerosol-generating article is at least 1: 7.

further, the ratio of the radial length of the first and/or second induction-heatable body to the aerosol-generating article diameter is 1: 5-1: 2.

the first induction heating body, the second induction heating body and the third induction heating body are circumferentially and uniformly distributed; the diameter of an circumscribed circle formed by the first induction heating body, the second induction heating body and the third induction heating body and the diameter ratio of the aerosol generating product are 6: 7-9: 10; the ratio of the diameter of an inscribed circle formed by the first induction heating body, the second induction heating body and the third induction heating body to the diameter of the aerosol generating product is 1: 7-3: 7.

further, a fourth induction heating body is included, the fourth induction heating body being located at the center of the first, second and third induction heating bodies; the fourth induction heating body is a needle heater.

The first induction heating body, the second induction heating body, the third induction heating body and the fourth induction heating body are uniformly distributed in the circumferential direction; the diameter of the circumscribed circle formed by the first induction heating body, the second induction heating body, the third induction heating body and the fourth induction heating body and the diameter of the aerosol generating product are 6: 7-9: 10; the ratio of the diameter of an inscribed circle formed by the first induction heating body, the second induction heating body, the third induction heating body and the fourth induction heating body to the diameter of the aerosol generating product is 1: 7-3: 7.

further, the first induction heating body, the second induction heating body, the third induction heating body and the fourth induction heating body are sheet heaters; the first induction heating body and the third induction heating body are on the same plane; the second induction heating body and the fourth induction heating body are on the same plane or are perpendicular to each other.

Further, the top parts of the first induction heating body and the second induction heating body are provided with puncture tips, and the angle of the puncture tips is not more than 30 degrees.

The induction heating device further comprises an extractor, wherein the extractor comprises a through hole which is arranged at the bottom of the extractor and is matched with the induction heating body to pass through; the extractor and the aerosol generating device are provided with a matching limiting device in a matching mode, and the matching limiting device is used for limiting the installation direction of the extractor.

Further, the first induction heating body and the second induction heating body are integrally formed.

Further, the induction heating device further comprises a base used for fixing the first induction heating body and the second induction heating body, wherein the first induction heating body and the second induction heating body are connected through a base connecting portion, and the base connecting portion is arranged inside the base.

Furthermore, the base is provided with a limiting connection structure for ensuring that the first induction heating body and the second induction heating body are installed on the aerosol generating device according to one or more fixed directions.

Furthermore, a clamping groove is formed in the base and used for assembling the base connecting portion.

Further, the base comprises a first heating body support and a second heating body support, and the base connecting portion is fixed on the base through the cooperation of the first heating body support and the second heating body support.

Further, the heating device further comprises a temperature sensor, wherein the temperature sensor is arranged in a cavity formed by the first heating body support and the second heating body support and is in close contact with the base connecting part.

Further, a support is arranged between the temperature sensor and the base.

An aerosol-generating system comprising an aerosol-generating device according to any preceding claim and the aerosol-generating article for the aerosol-generating device, the aerosol-generating article comprising an aerosol-generating portion, the aerosol-generating portion being an out-of-order structure.

The utility model has the following technical effects:

(1) on the premise of not increasing the complexity and the volume of the heating smoking set, the heating area of the aerosol generating product is increased by designing the shape and the arrangement of the heating components for induction heating, so that the aerosol generating product is uniformly and fully heated;

(2) due to the electromagnetic heating mode and the structure of high contact area of the inductor, the heating temperature required by the aerosol generating device is lower than that of the traditional inner core resistance heating smoking set, so that the safety of the smoking set is improved, and the power consumption is reduced;

(3) the size, shape and arrangement of the heating assembly are more beneficial to the insertion of the disordered tobacco cigarette than the prior art;

(4) the relative positions of the electromagnetic induction transmitter, the inductor and the temperature sensor ensure the independence and the accuracy of the heating temperature monitoring;

(5) the first induction heating body, the second induction heating body and other induction heating bodies which may exist in the inductor are integrally formed and are connected with each other through the base connecting part, so that the areas surrounded by the plurality of heating bodies can be enough to form effective magnetic flux areas, and the intensity of induction potential can be greatly increased compared with the intensity of induction potential of the plurality of independent heating bodies;

(6) the structure of the integrated induction heating body is manufactured in a blanking and bending mode, so that the process complexity and the production cost are greatly reduced;

(7) the inductor is formed in a cold machining mode, so that the influence of high-temperature machining on the magnetic conductivity of materials such as stainless iron is avoided;

(8) the base and the support piece are matched to provide a firm, stable and simple fixing structure for the temperature sensor and the inductor;

in view of the above, the present invention provides an aerosol-generating device that is easy to operate, low cost, excellent in smoke generation and small in volume.

Drawings

The foregoing technical disclosure as well as the following detailed description of the present invention will be better understood when read in conjunction with the appended drawings. It is to be noted that the figures are only intended as examples of the claimed solution. In the drawings, like reference characters designate the same or similar elements.

FIG. 1 is a cross-sectional view of a heating assembly in an embodiment of the utility model;

fig. 2 is a schematic perspective view of an induction-heatable body according to an embodiment of the present invention;

FIG. 3-A is a schematic perspective view of an induction-heatable body (in an expanded state) according to an embodiment of the present invention;

FIG. 3-B is a perspective view of an induction-heatable body (in a folded state) according to an embodiment of the present invention;

FIG. 4 is a perspective view of a base in an embodiment of the present invention;

FIG. 5 is a schematic perspective view of a base and an induction-heatable body according to an embodiment of the present invention;

FIG. 6 is a cross-sectional view of a heating assembly in an embodiment of the present invention;

FIG. 7-A is a schematic view of an induction-heatable body and base in one embodiment of the present invention;

FIG. 7-B is a schematic view of an induction-heatable body and base in one embodiment of the present invention;

FIG. 7-C is a schematic view of an induction-heatable body and base in an embodiment of the present invention;

FIG. 7-D is a schematic view of an induction-heatable body and base in an embodiment of the present invention;

FIG. 8-A is a schematic top view of FIG. 7-A;

FIG. 8-B is a schematic top view of FIG. 7-B;

FIG. 8-C is a schematic top view of FIG. 7-C;

FIG. 8-D is a top schematic view of FIG. 7-D;

FIG. 9 is a schematic perspective view of an extractor in accordance with an embodiment of the present invention;

FIG. 10 is a perspective view of a smoking article body according to an embodiment of the utility model;

FIG. 11 is a cross-sectional view of a heated smoking article in accordance with an embodiment of the utility model;

FIG. 12 is a comparison of idle temperature curves for a heating smoking set and a commercial smoking set in accordance with an embodiment of the present invention.

Wherein the reference numerals are as follows:

100 heating smoking set

200 electromagnetic induction transmitter

201 coil support

300 inductor

301 first induction heating body

302 second induction heating body

303 third induction heating body

304 fourth induction heating body

305 piercing point

306 space apart

307 base connection part

400 base

401 card slot

402 spacing connection structure

403 first heating body support

404 second heater support

405 first high temperature resistant silica gel

406 second high temperature resistant silica gel

500 extractor

501 through hole

502 intake hole

503 cooperating with a limiting device

600 circle of circumscribed circle

700 temperature sensor

Detailed Description

The detailed features and advantages of the utility model are described in the following detailed description, which is sufficient to enable one skilled in the art to understand the technical content of the utility model and to implement the utility model, and the related objects and advantages of the utility model can be easily understood by one skilled in the art from the description, the claims and the accompanying drawings.

For ease of understanding, directional terms such as "upper", "lower", "top", "bottom", etc. as used in this specification are used with reference to the upright position of the aerosol-generating device.

An embodiment of the utility model proposes an aerosol-generating system, an aerosol-generating device and an aerosol-generating article for an aerosol-generating device. Preferably, the aerosol-generating article comprises an aerosol-generating portion, the aerosol-generating portion being of a disordered structure. An aerosol-generating device, such as a heated smoking article 100. The heated smoking article 100 provides a user with a smokable aerosol by electromagnetic induction heating of the aerosol generating article, which is an excellent form of non-contact heating, with the application of a specially shaped heating body having little effect on other structures. The closed/unsealed chamber in the heating smoking article for placing the aerosol-generating article is a heating chamber. The heating smoking article 100 includes a power source and a heating assembly.

All of the following examples are given only for the example of an aerosol-generating article having a diameter of 7.2mm to 7.8mm, and are not limited to this type or size of media, and all relevant values are hereinafter proportional to the diameter of the aerosol-generating article.

In one embodiment of the heating assembly of the present disclosure shown in fig. 1, the heating assembly is composed of an electromagnetic induction radiator 200, a first induction-heatable body 301, and a second induction-heatable body 302. Preferably, the heating assembly may further comprise a third induction-heatable body 303 and a fourth induction-heatable body 304. (hereinafter, the inductor 300 is referred to collectively as first induction-heatable body 301/second induction-heatable body 302/third induction-heatable body 303/fourth induction-heatable body 304, etc., and refers to any one of the induction-heatable bodies in the aerosol-generating device) the inductor 300 is disposed inside the electromagnetic induction transmitter 200. The electromagnetic induction transmitter 200 generates an alternating magnetic field through the circuit to induce the inductor 300 to generate heat. All the inductors 300 are integrally mounted on the base 400. The electromagnetic induction transmitter 200 may be held by a coil holder 201 disposed at the periphery of the heating chamber. Preferably, the electromagnetic induction transmitter 200 should cover the inductor 300. On the premise of not increasing the complexity and the volume of the heating smoking set, the shape and the arrangement design of parts in the heating assembly increase the heating area of the aerosol generating product, so that the aerosol generating product is uniformly and fully heated.

The heating assembly is provided with a temperature sensor 700 for monitoring the temperature of the heating assembly. The temperature sensor 600 may directly contact the heating assembly by means of bonding or welding. Preferably, the temperature sensor is disposed outside the electromagnetic induction range. Preferably, the electromagnetic induction transmitter 200 should cover the position where the temperature sensor 700 is disposed, so as to ensure that the temperature sensor is attached to the induction heating body to generate induced current in the magnetic field to generate heat autonomously, rather than allowing the temperature sensor to sense the temperature due to the heat conduction of metal, thereby ensuring the independence and accuracy of temperature measurement.

Fig. 2 shows an embodiment of an inductor 300. In this embodiment there are three inductors 300 arranged concentrically in a triangular pattern. A piercing tip 305 is provided on the top of each sensor 300, and the sensors 300 are inserted into the aerosol-generating article during use. Optionally, the angle of the piercing tip 305 is less than 30 °. All the inductors 300 are integrated by being mounted on the base 400. Optionally, the inductors 300 are connected by a base connection portion 307, and the base connection portion 307 is installed on the base 400. To ensure a smooth insertion of the aerosol-generating article, the sensor 300 is an elongate body having a uniform cross-section at various locations below the piercing tip 305.

Fig. 3-a illustrates one embodiment of an inductor 300. In this embodiment, inductor 300 comprises a first induction-heatable body 301, a second induction-heatable body 302 and a third induction-heatable body 303, which are uniformly axially distributed. The first induction heater 301, the second induction heater 302, and the third induction heater 303 are integrally connected by a base connection 307. Since the inductors are connected to each other by the base connecting portion 307, the regions surrounded by the plurality of heating bodies can be made effective magnetic flux regions, and the intensity of the induced potential can be greatly increased as compared with the case where the plurality of independent heating bodies are provided.

The manufacturing method of the embodiment comprises the following steps: step 1, cutting a plate raw material into a planar unfolded shape of an inductor 300 (as shown in fig. 3-B), preferably, selecting a sheet metal type induction heating body material to form a planar unfolded state of an induction heating body by wire cutting and the like; step 2, the first induction heating body 301, the second induction heating body 302 and the third induction heating body 303 are respectively processed to an assembly position, preferably, a stamping or bending mode can be used. The manufacturing method of the embodiment reduces the process complexity and the production cost. The inductor formed by the cold machining mode avoids the influence of high-temperature machining on the magnetic permeability of materials such as stainless iron and the like.

Fig. 4 illustrates one embodiment of a base 400. The base 400 is used to hold the inductor 300 and is connected to the heating smoking set 100. A clamping groove 401 is formed on the base 400 for mounting the inductor 300. The base 400 is mounted to the bottom of the heating cavity. Preferably, the base 400 may be provided with a limit connection structure 402 to ensure that the induction heating body is mounted on the heating smoking set 100 in a fixed direction/directions. Preferably, the base 400 is made of a high temperature resistant material, such as: (1) PEEK; (2) metals insensitive to magnetic induction, such as stainless steel, etc.; (3) high temperature ceramics such as zirconia, alumina, etc.

Fig. 5 and 6 illustrate one embodiment of a base 400 and an inductor 300. The base 400 comprises a first heater support 403, a second heater support 404. The first heater support 403 and the second heater support 404 cooperate to fix the base connection 307 to the base 404. Preferably, the first heating body support 403 and the second heating body support 404 can be connected by means of clamping, snapping, riveting or screwing, etc. Preferably, the temperature sensor 700 is arranged in the cavity formed by the first heater support 403 and the second heater support 404, in intimate contact with the inductor 300. A supporter may be disposed between the temperature sensor 700 and the base 400 or between the induction-heatable body and the base 400. The support member may be a high temperature resistant silicone. The supporting part has the functions of: 1. the elastic deformation of the high-temperature-resistant flexible material is utilized to form pressing force, so that the temperature sensor and the induction heating body are tightly attached, and the temperature sensor, the base and the induction heating body are stably assembled; 2. the high temperature of the induction heating body is buffered, and the service life of the smoking set is prolonged. In particular, in the present embodiment, the temperature sensor 700 is arranged between the inductor 300 and the second heater support 404. The first refractory silica gel 405 is disposed on the support of the inductor 300 and the first heater support 403, and the second refractory silica gel 406 is disposed between the temperature sensor 700 and the second heater support 404.

Preferably, the latching structure of the bracket 403 is latched with the latching structure of the bracket 404 through a gap between the induction heating bodies. The bracket 403 is provided with a first limiting structure, which limits the movement of the first high temperature resistant silicone rubber 405 and clamps the first high temperature resistant silicone rubber on the connecting portion 307 of the induction heating body. The sensor 700 is disposed between the bracket 404 and the connecting portion 307, and the sensor 700 is pressed against the base connecting portion 307 by the second high temperature resistant silicone 406. A through hole is provided in the bracket 404, and the lead of the temperature sensor 700 passes through the through hole.

Preferably, the layout of the inductor 300 may be a centrosymmetric array, an axisymmetric array, a triangular layout, or the like.

The range of arrangement of the sensor 300 does not exceed the range of the aerosol-generating article when fitted to the heating chamber. If the edge of the sensor 300 is too close to the edge of the aerosol-generating article, insertion of the aerosol-generating article is not facilitated. It is therefore preferred that each inductor 300 is spaced from the edge of the projected area of the aerosol-generating article when mounted in the heating chamber, i.e. the diameter of the circumscribed circle formed by all inductors 300 is less than the diameter of the aerosol-generating article. Preferably, the distance may be 1-2 mm.

A certain spacing 306 between the inductors 300 is required to facilitate insertion of the aerosol-generating article. The ratio of the spacing 306 between the first and second induction heating bodies 301, 302 to the diameter of the aerosol-generating article is at least 1: 7. preferably, each void 306 is greater than or equal to 1 mm. The greater the number of inductors 300, the smaller the spacing 306. Preferably, the number of inductors 300 is 3-6.

Preferably, the inductors 300 form an inscribed circle therebetween. When the inductors 300 are arranged in an axisymmetric manner, the inscribed circle takes the center of the base 400 as the center of the circle and the length of the inductor 300 with the center of the circle closest to the center of the circle as the radius. The size of the inscribed circle is positively correlated with the effect of smooth insertion of the cigarette into the heating smoking set. Preferably, the diameter of the inscribed circle is 1mm or more. Preferably, the ratio of the diameter of the inscribed circle to the diameter of the aerosol-generating article is 1: 7-3: 7.

the single inductor 300 may be a pin heater or a sheet heater, respectively. The width of each inductor 300 at its widest point is referred to as the radial length of the induction-heatable body. The ratio of the radial length of the first induction-heatable body 301 and/or the second induction-heatable body 302 to the aerosol-generating article diameter is 1: 5-1: 2. preferably, the radial length of the inductor 300 is 1.5-3 mm. More preferably, the radial length of the inductor 300 is 2 mm. The inductor 300 may be curved in a radial direction, such as an arc-shaped heating plate.

Fig. 7-a to 7-D and corresponding fig. 8-a to 8-D show four embodiments of the arrangement of the inductor 300.

As shown in fig. 7-a and 8-a, an embodiment of arrangement of inductors 300 is shown, which includes a first induction heating unit 301, a second induction heating unit 302, a third induction heating unit 303 and a fourth induction heating unit 304, wherein the inductors 300 are all sheet heaters and are circumferentially and uniformly distributed. The first induction-heatable body 301 and the third induction-heatable body 303 are on the same plane; second induction heater 302 and fourth induction heater 304 are perpendicular to each other. The diameter of the circumscribed circle formed by the first induction-heatable body 301, the second induction-heatable body 302, the third induction-heatable body 303, and the fourth induction-heatable body 40, and the aerosol-generating article diameter ratio are 6: 7-9: 10. the ratio of the spacing between the first induction-heatable body 301, the second induction-heatable body 302, the third induction-heatable body 303, and the fourth induction-heatable body 304 to the diameter of the aerosol article is at least 1: 7. the ratio of the inscribed circle formed by the first induction-heatable body 301, the second induction-heatable body 302, the third induction-heatable body 303, and the fourth induction-heatable body 304 to the diameter of the aerosol-generating article is at least 2: 7. the first and second induction heatable bodies are located within the heated aerosol-generating article when the heated aerosol-generating article is in a normal use position; the electromagnetic induction transmitter may generate an alternating electromagnetic field to cause the first and second induction-heatable bodies to inductively heat, thereby heating the aerosol-generating article.

As shown in fig. 7-B and 8-B, one embodiment of an arrangement of inductors 300 is shown, including a first induction-heatable body 301, a second induction-heatable body 302, a third induction-heatable body 303, and a fourth induction-heatable body 304. The first induction heating body 301, the second induction heating body 302, and the third induction heating body 303 are arc-shaped sheet heaters, and are circumferentially and uniformly distributed. Preferably, the arc structures of the first, second and third induction-heatable bodies are located on the same circumference. The fourth induction heater 304 is located centrally of the first, second and third induction heaters 301, 302 and 303. The fourth induction heating body is a needle heater. The ratio of the spacing between the first induction-heatable body 301, the second induction-heatable body 302, the third induction-heatable body 303, and the fourth induction-heatable body 304 to the diameter of the aerosol article is at least 1.5: 7.

as shown in fig. 7-C and 8-C, an embodiment of an arrangement of inductors 300 is shown, which includes a first induction heating unit 301, a second induction heating unit 302, a third induction heating unit 303 and a fourth induction heating unit 304, wherein the inductors 300 are all sheet heaters and are circumferentially and uniformly distributed. The first induction-heatable body 301 and the third induction-heatable body 303 are arranged on the same plane; second induction heater 302 and fourth induction heater 304 are arranged in parallel. The ratio of the spacing between the first induction heater 301, the second induction heater 302, the third induction heater 303, and the fourth induction heater 304 to the diameter of the aerosol article is 2: 7-2: 1. the ratio of the inscribed circle formed by the first induction-heatable body 301, the second induction-heatable body 302, the third induction-heatable body 303, and the fourth induction-heatable body 304 to the diameter of the aerosol-generating article is at least 2: 7.

as shown in fig. 7-D and 8-D, one embodiment of an arrangement of inductors 300 is shown, including a first induction-heatable body 301, a second induction-heatable body 302, and a third induction-heatable body 303. The first induction heating body 301, the second induction heating body 302, and the third induction heating body 303 are sheet heaters, and are circumferentially and uniformly distributed, that is, triangularly distributed. The ratio of the spacing between the first induction-heatable body 301, the second induction-heatable body 302, and the third induction-heatable body 303 to the diameter of the aerosol article is 1: 7-2: 1. the ratio of the inscribed circle formed by the first, second and third induction- heatable bodies 301, 302, 303 to the diameter of the aerosol-generating article is at least 1: 3. the diameter of the circumscribed circle 600 formed by the first induction heating body, the second induction heating body and the third induction heating body and the diameter ratio of the aerosol generating product are 6: 7-9: 10.

fig. 9 and 10 show an embodiment of a heating smoking article 1 comprising an extractor 500. As the total contact area of the aerosol-generating article with the heating component is increased, the likelihood of the aerosol-generating article sticking to the heating component is increased and, to ensure that the aerosol-generating article can be removed smoothly without sticking after heating, the aerosol-generating article needs to be extracted using the extractor 500. The bottom of the extractor is provided with a through hole 501 corresponding to the induction heating body for the induction heating body to pass through the extractor. Preferably, an air inlet hole 502 is formed at the bottom of the extractor. Preferably, the extractor comprises a plurality of air inlet holes, the air inlet holes being arranged circumferentially. Preferably, the extractor comprises a plurality of air inlets, the air inlets are circumferentially arranged, the number of the air inlets can be larger than or equal to that of the induction heating bodies, and at least one air inlet is arranged in at least one inscribed circle. Because the shape of induction-heatable body requires the extractor to be installed in a specific fitting manner, corresponding fitting limiting devices 503 should be provided on the extractor and the heating smoking set to ensure that the extractor is installed in the correct installation direction.

FIG. 11 is a schematic view of an embodiment of a heating smoking device according to the present disclosure. The heating smoking set also comprises a power supply connected with the electromagnetic induction transmitter, a temperature measuring circuit connected with the temperature sensor, a matching circuit system, a battery and a shell.

Fig. 12 shows a heating curve of a heating smoking set according to an embodiment of the present invention. The heating curve is recorded as the heating curve of the heating smoking set in the idle state.

The heating temperature of the preheating stage of the heating smoking set is about 330-350 ℃, the temperature of the second stage is about 300 ℃, and the long-term stable working temperature is about 275 ℃. The traditional smoking set heated by the inner core has stable working temperature of about 330 ℃.

Because of the temperature feedback circuit, the temperature of the constant temperature section in the no-load state and the loaded state is consistent, and the heating temperature of the heating body in the loaded state is also between 260 ℃ and 290 ℃, and the temperature can be changed according to different cigarette states and the required smoking effect.

The following is a comparison of the smoke release test using the temperature profile of the commercial appliance described above and the temperature profile of this example:

implement	Total particulate phase Release (mg/cig)	Nicotine (mg/cig)
			Conventional smoking set	36.34	0.9337
Smoking set	37.13	0.9158

Therefore, on the key parameters of the smoke, the effect equivalent to that of the conventional smoking set can be realized under the condition that the heating temperature is reduced by about 60 ℃, and a better release effect can be obtained under the condition of further optimizing the temperature curve.

The heating smoking set of the embodiment and the traditional inner core heating smoking set are used for sucking the same disorderly and non-burning cigarettes for carrying out a plurality of sensory tests, and the heating smoking set of the embodiment can achieve the same and above sensory evaluation at the low-temperature heating temperature compared with the traditional inner core heating smoking set.

This embodiment is compared in traditional inner core resistance heating type heating cigarette utensil, and the induction heating body temperature control who adopts is lower relatively, is favorable to promoting the utensil security and reduces the consumption.

The utility model discloses an aerosol generating device which is convenient to operate, low in cost, excellent in smoke generating effect and small in size.

The terms and expressions which have been employed are used as terms of description and not of limitation. The use of such terms and expressions is not intended to exclude any equivalents of the features shown and described (or portions thereof), and it is recognized that various modifications may be made within the scope of the claims. Other modifications, variations, and alternatives are also possible. Accordingly, the claims should be looked to in order to cover all such equivalents.

Also, it should be noted that, although the present invention has been described with reference to the present specific embodiments, it should be understood by those skilled in the art that the above embodiments are only for illustrating the present invention and that various equivalent changes or substitutions may be made without departing from the spirit of the present invention, and therefore, it is intended that all changes and modifications to the above embodiments within the spirit of the present invention shall fall within the scope of the appended claims.

Claims (18)

1. An aerosol-generating device for heating an aerosol-generating article to generate an aerosol, comprising a power source and a heating assembly,

the power supply is used for supplying power to the heating assembly;

the heating assembly comprises an electromagnetic induction emitter (200) and an inductor (300), the inductor (300) comprising a first induction-heatable body (301) and a second induction-heatable body (302), the first induction-heatable body (301) and the second induction-heatable body (302) being located inside the heated aerosol-generating article when the heated aerosol-generating article is in a normal use position;

the electromagnetic induction emitter (200) may generate an alternating electromagnetic field to inductively heat the first and second induction-heatable bodies (301, 302), thereby heating the aerosol-generating article.

2. An aerosol-generating device according to claim 1, wherein the ratio of the spacing (306) between the first and second induction-heatable bodies (301, 302) to the diameter of the aerosol-generating article is at least 1: 7.

3. an aerosol-generating device according to claim 1, wherein the ratio of the radial length of the first induction-heating body (301) and/or the second induction-heating body (302) to the aerosol-generating article diameter is 1: 5-1: 2.

4. an aerosol-generating device according to claim 1, further comprising a third induction-heatable body (303), the first induction-heatable body (301), the second induction-heatable body (302), and the third induction-heatable body (303) being uniformly distributed circumferentially;

the diameter of the circumscribed circle (600) formed by the first induction-heatable body (301), the second induction-heatable body (302) and the third induction-heatable body (303) to the aerosol-generating article diameter ratio is 6: 7-9: 10;

the ratio of the diameter of the inscribed circle formed by the first induction-heatable body (301), the second induction-heatable body (302), and the third induction-heatable body (303) to the diameter of the aerosol-generating article is 1: 7-3: 7.

5. an aerosol-generating device according to claim 4, further comprising a fourth induction-heatable body (304), the fourth induction-heatable body (304) being located centrally of the first induction-heatable body (301), the second induction-heatable body (302) and the third induction-heatable body (303);

the fourth induction heating body (304) is a needle heater.

6. An aerosol-generating device according to claim 1, further comprising a third induction-heatable body (303) and a fourth induction-heatable body (304), the first induction-heatable body (301), the second induction-heatable body (302), the third induction-heatable body (303) and the fourth induction-heatable body (304) being uniformly distributed circumferentially;

the diameter of the circumscribed circle (600) formed by the first induction-heatable body (301), the second induction-heatable body (302), the third induction-heatable body (303) and the fourth induction-heatable body (304) is 6: 7-9: 10;

the ratio of the diameter of the inscribed circle formed by the first induction-heatable body (301), the second induction-heatable body (302), the third induction-heatable body (303), and the fourth induction-heatable body (304) to the diameter of the aerosol-generating article is 1: 7-3: 7.

7. an aerosol-generating device according to claim 6, wherein the first, second, third and fourth induction heating bodies (301, 302, 303, 304) are sheet heaters;

the first induction-heatable body (301) and the third induction-heatable body (303) are on the same plane;

the second induction-heatable body (302) and the fourth induction-heatable body (304) are on the same plane or perpendicular to each other.

8. An aerosol-generating device according to claim 1, wherein the first induction heating body (301) and the second induction heating body (302) are provided with piercing tips on top, the piercing tips being at an angle not exceeding 30 °.

9. An aerosol-generating device according to claim 1, further comprising an extractor (500), the extractor (500) comprising a bottom provided with a through hole (501) for the passage of the induction heating body;

the extractor (500) and the aerosol generating device are provided with a matching limiting device (503) in a matching mode, and the matching limiting device is used for limiting the installation direction of the extractor (500).

10. An aerosol-generating device according to claim 1, wherein the first induction-heatable body (301) and the second induction-heatable body (302) are integrally formed.

11. An aerosol-generating device according to claim 1, further comprising a base (400) for securing the first induction-heatable body (301) and the second induction-heatable body (302), the first induction-heatable body (301) and the second induction-heatable body (302) being connected by a base connection (307) which is arranged inside the base (400).

12. An aerosol-generating device according to claim 11, wherein the base (400) is provided with a positive connection (402) for ensuring that the first and second induction-heatable bodies (301, 302) are mounted to the aerosol-generating device in a fixed orientation or orientations.

13. An aerosol-generating device according to claim 11, wherein the base (400) is provided with a catch (401) for fitting the base connection (307).

14. An aerosol-generating device according to claim 11, characterized in that the base (400) comprises a first heater support (403) and a second heater support (404), the first heater support (403) and the second heater support (404) cooperating to secure the base connection (307) to the base (400).

15. An aerosol-generating device according to claim 14, further comprising a temperature sensor (700), the temperature sensor (700) being arranged in a cavity formed by the first and second heater supports (403, 404) in close contact with the base connection (307).

16. An aerosol-generating device according to claim 15, wherein a support is provided between the temperature sensor (700) and the base (400).

17. An aerosol-generating device according to any one of claims 1 to 16, wherein the induction-heatable body of the inductor comprises at least one sheet-type induction-heatable body.

18. An aerosol-generating system comprising an aerosol-generating device according to any of claims 1 to 16 and the aerosol-generating article for the aerosol-generating device, the aerosol-generating article comprising an aerosol-generating portion, the aerosol-generating portion being a disordered structure.

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