CN113729298A

CN113729298A - Aerosol generating product and aerosol generating device

Info

Publication number: CN113729298A
Application number: CN202111032241.0A
Authority: CN
Inventors: 廖振龙; 牛彦明
Original assignee: Shenzhen Woody Vapes Technology Co Ltd
Current assignee: Shenzhen Woody Vapes Technology Co Ltd
Priority date: 2021-09-03
Filing date: 2021-09-03
Publication date: 2021-12-03
Also published as: WO2023029611A1

Abstract

The embodiment of the application belongs to the technical field of aerosol generating products, and relates to an aerosol generating product and an aerosol generating device. The aerosol generation product comprises a heating part and an aerosol generation substrate, wherein the heating part is provided with a gas heating channel, a gas inlet and an exhaust hole, the gas heating channel is positioned in an inner cavity of the heating part, the gas heating channel is communicated with the gas inlet and the exhaust hole, the aerosol generation substrate is contacted with the outer side of the heating part and positioned on a gas outlet end of a pore passage of the exhaust hole, and air can enter the aerosol generation substrate through the exhaust hole after entering the gas heating channel. This application heats the back through the piece that generates heat to the air, discharges the hot-air again to aerosol generation substrate to carry out the air-flowing type heating of hot-air and the double mode heating of the piece direct contact heating that generates heat to aerosol generation substrate, make each partial region homoenergetic of aerosol generation substrate heated the carbonization, ensure that aerosol generation substrate can be by the abundant heating.

Description

Aerosol generating product and aerosol generating device

Technical Field

The present application relates to the field of aerosol-generating articles, and more particularly, to an aerosol-generating article and an aerosol-generating device.

Background

An aerosol-generating article is a product that is heated to cause an aerosol-generating substrate to generate an aerosol that is discharged for consumption by a user.

In the prior art, two heating methods are generally adopted, one is to adopt a resistance heating member capable of independently heating to contact and heat with an aerosol generating substrate, and the other is to contact and heat the aerosol generating substrate under the action of a magnetic induction coil through an electromagnetic heating member. However, these two heating methods are limited by the area of the heat generating material and the contact area between the heat generating material and the aerosol-generating substrate, and therefore the aerosol-generating substrate cannot be sufficiently heated, and particularly, a portion away from the heat generating material cannot sufficiently absorb heat to generate aerosol, which results in a problem that the aerosol-generating substrate in this portion is insufficiently carbonized.

Disclosure of Invention

The technical problem to be solved by embodiments of the present application is that aerosol-generating substrates in aerosol articles of the prior art cannot be heated sufficiently.

In order to solve the above technical problem, an embodiment of the present application provides an aerosol-generating article, which adopts the following technical solutions:

this aerosol generates goods, generates the substrate including generating heat piece and aerosol, the piece that generates heat is equipped with gas heating channel, air inlet and exhaust hole, gas heating channel is located the inner chamber of the piece that generates heat, gas heating channel with the air inlet exhaust hole intercommunication, aerosol generate the substrate with the outside contact of the piece that generates heat, and be located the pore in exhaust hole is given vent to anger and is served, makes the air get into can the warp behind the gas heating channel the exhaust hole enters into inside the aerosol generates the substrate.

Further, the heating element includes a heating tube, the inner cavity of the heating tube is the gas heating channel, the heating tube is far away from one end of the gas inlet is arranged in a sealing way, the exhaust hole is formed in the side wall of the heating tube, and the aerosol generation substrate is arranged on the outer side of the heating tube and is in contact with the heating tube.

Furthermore, the heating element further comprises a preheating pipe, the preheating pipe is connected in an inner cavity of the heating pipe, the gas heating channel comprises a first channel and a second channel, the first channel is located in the inner cavity of the preheating pipe, the second channel is located in a spacing area between the outer side wall of the preheating pipe and the inner wall of the heating pipe, the gas inlet is formed in the end portion of the preheating pipe, the heating pipe and one end, far away from the gas inlet, of the preheating pipe are both arranged in a sealing mode, the side wall of the preheating pipe is provided with a ventilation structure, and the first channel and the second channel are communicated through the ventilation structure.

Further, the aerosol-generating article further comprises a breathable adsorption member connected to the heat generating member and located at a bottom of the heat generating member.

Further, the aerosol-generating article further comprises a filter attached to the aerosol-generating substrate, the filter being located downstream of the aerosol-generating substrate.

Further, the aerosol-generating article further comprises an aerosol-cooling element connected at both ends to the aerosol-generating substrate and the filter, respectively, the aerosol-cooling element being located downstream of the aerosol-generating substrate and upstream of the filter.

Further, an end of the aerosol-generating substrate adjacent to the air inlet is in a sealed arrangement.

Further, the heating element and the aerosol generating substrate are coaxially arranged.

Further, the exhaust holes are one or more of a combination of circular holes, elliptical holes, triangular holes, polygonal holes and special-shaped holes.

Further, the exhaust holes are arranged on the heating element along a first direction, the size of the apertures of the exhaust holes arranged along the first direction is different, and the first direction is parallel to the flowing direction of air in the gas heating channel.

Furthermore, the diameter of the opening of the air inlet end of the pore channel of the exhaust hole is smaller than that of the opening of the air outlet end of the pore channel of the exhaust hole.

Further, the pore canal of the exhaust hole is obliquely arranged, the pore canal of the exhaust hole is inclined to the second direction, and the second direction is the direction in which gas is discharged outwards from the inside of the aerosol generation substrate.

In order to solve the above technical problem, an embodiment of the present application further provides an aerosol generating device, which adopts the following technical scheme:

the aerosol generating device comprises a housing, an induction coil, a power supply, a control circuit board and an aerosol generating article according to any one of the preceding aspects;

the induction coil, the power supply and the control circuit board are all arranged in the shell, the part of the aerosol generating product with the heating element can be plugged in the shell, the power supply is connected with the control circuit board, and the control circuit board is connected with the induction coil;

wherein, when the aerosol-generating product is inserted into the shell, the induction coil surrounds and is arranged outside the heating element of the aerosol-generating product, the heating element comprises a heating tube, and the heating tube is made of metal material.

Further, the aerosol generating device further comprises a bracket, the bracket is mounted inside the housing, the bracket is provided with a slot, the shape of the slot is matched with the shape of the aerosol generating product, and the bracket is used for bearing the aerosol generating product.

Further, the aerosol generating device further comprises a magnetic isolation plate, the magnetic isolation plate is connected with the shell, and the magnetic isolation plate is arranged between the induction coil and the shell.

Compared with the prior art, the embodiment of the application mainly has the following beneficial effects:

this application has the piece that generates heat of gas heating channel and air inlet, exhaust hole through the setting, makes the piece that generates heat carry out solid contact heating to aerosol formation substrate, can be through the heating back to the air, again with the inside of hot-air discharge to aerosol formation substrate. The aerosol generating product has the advantages that the heating mode of the heating part for heating the aerosol generating base material in a solid direct contact mode and the airflow mode of the hot air for heating the aerosol generating base material can be simultaneously carried out in the aerosol generating product, so that the aerosol generating base material area which is not in direct contact with the heating part can be uniformly heated under the action of hot air flow, and the heating of the aerosol generating base material can be more sufficient and uniform.

Drawings

In order to illustrate the solution of the present application more clearly, the drawings that are needed in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and that other drawings can be obtained by those skilled in the art without inventive effort.

Figure 1 is a cross-sectional view of a first embodiment of an aerosol-generating article according to the present invention, in which the arrows indicate the direction of air flow;

FIG. 2 is a perspective view of a heat-generating tube of the aerosol-generating article of FIG. 1, illustrating a first embodiment of the heat-generating tube, with arrows indicating the direction of air flow;

FIG. 3 is a perspective view of a heating tube according to a second embodiment of the present invention;

FIG. 4 is a perspective view of a heat generating tube according to a third embodiment of the present invention;

figure 5 is a cross-sectional view of a second embodiment of an aerosol-generating article according to the present invention, in which the direction of flow of air is indicated by the arrows;

fig. 6 is a cross-sectional view of an aerosol generating device according to an embodiment of the present invention, in which arrows indicate the flow direction of air.

Reference numerals:

100. an aerosol-generating article; 110. a heat generating tube; 111. a gas heating channel; 1111. a first channel; 1112. a second channel; 112. an air inlet; 113. an exhaust hole; 120. an aerosol-generating substrate; 130. a preheating pipe; 131. a breathable structure; 140. a breathable absorbent member; 150. a filter tip; 160. an aerosol-cooling element; 170. a first seal member; 180. a second seal member; 190. a tubular member;

200. a housing; 300. an induction coil; 400. a bracket; 500. a magnetic shield plate; 600. a battery; 700. a control circuit board; 800. a charging circuit board; 900. an intake passage.

Detailed Description

Unless defined otherwise, 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 application belongs; the terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "including" and "having," and any variations thereof, in the description and claims of this application and the description of the above figures are intended to cover non-exclusive inclusions. The terms "first," "second," and the like in the description and claims of this application or in the above-described drawings are used for distinguishing between different objects and not for describing a particular order.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

Embodiments of the present application provide an aerosol-generating article 100, see fig. 1 to 5, wherein fig. 1 shows a first embodiment of an aerosol-generating article according to the present invention; FIG. 2 is a first embodiment of a heat generating tube according to the present invention; FIG. 3 is a second embodiment of the heat generating tube provided by the present invention; FIG. 4 is a third embodiment of the heat generating tube according to the present invention; figure 5 is a second embodiment of an aerosol-generating article provided by the present invention; figure 6 is an embodiment of an aerosol generating device provided by the present invention.

The aerosol generating product 100 comprises a heat generating component and an aerosol generating substrate 120, wherein the heat generating component is provided with a gas heating channel 111, a gas inlet 112 and a vent hole 113, the gas heating channel 111 is positioned in an inner cavity of the heat generating component, the gas heating channel 111 is communicated with the gas inlet 112 and the vent hole 113, the aerosol generating substrate 120 is contacted with the outer side of the heat generating component and is positioned on a duct gas outlet end of the vent hole 113, so that air can enter the aerosol substrate through the vent hole 113 after entering the gas heating channel 111.

It will be appreciated that the aerosol-generating article 100 operates as follows:

after being sucked into the aerosol-generating product 100, air enters the gas heating channel 111 through the air inlet 112 of the heat generating member, the heat generating member generates heat, on one hand, the aerosol-generating substrate 120 which is in direct contact with the heat generating member is heated, on the other hand, the air which enters the gas heating channel 111 is heated, the heated air enters the aerosol-generating substrate 120 through the exhaust hole 113, and the hot air can heat the aerosol-generating substrate 120, so that two heating modes, namely solid direct contact heating of the heat generating member to the aerosol-generating substrate and airflow heating of the hot air to the aerosol-generating substrate, are simultaneously performed in the aerosol-generating product 100. With the help of the strong flow diffusion property of the gas, the hot air can fully permeate the aerosol-generating substrate 120 after entering the interior of the aerosol-generating substrate 120 to expand the heating range of the aerosol-generating substrate 120, thereby avoiding the problems of insufficient and uneven heating caused by uneven heating of the aerosol-generating substrate 120.

In summary, the aerosol-generating article 100 has at least the following technical effects compared to the prior art:

this application is through setting up the piece that generates heat that has gas heating channel 111 and air inlet 112, exhaust hole 113, makes the piece that generates heat carry out solid contact heating to aerosol generation substrate 120 simultaneously, can be through the heating back to the air, again with the inside of hot-air discharge to aerosol generation substrate 120. The aerosol-generating article can be heated in two heating modes, namely, the solid direct contact heating of the heating element on the aerosol-generating substrate 120 and the airflow heating of the hot air on the aerosol-generating substrate 120, so that the aerosol-generating substrate area which is not in direct contact with the heating element can be uniformly heated under the action of hot airflow, and the aerosol-generating substrate 120 can be heated more fully and uniformly.

Referring to fig. 1 to 2, fig. 1 to 2 show a first embodiment of the present invention. In this embodiment, the heating element includes a heating tube 110, an inner cavity of the heating tube 110 is a gas heating channel 111, an end of the heating tube 110 away from the gas inlet 112 is disposed in a sealing manner, the gas outlet 113 is disposed on a side wall of the heating tube 110, and the aerosol generating substrate 120 is outside the heating tube 110 and contacts with the heating tube 110.

It should be noted that the aerosol-generating article 100 provided in the present embodiment has a cylindrical outer shape. In combination with the shape of the aerosol-generating article 100, the heat-generating tube 110 of the cylindrical structure is adopted in the embodiment, so that the heat-generating tube 110 can have a larger contact area with the aerosol-generating substrate while occupying a smaller space, and the gas heating channel 111 is arranged along the inner cavity of the heat-generating tube 110, so that the gas heating channel 111 can have a longer channel path in a limited space, thereby ensuring that air can be sufficiently heated in the gas heating channel 111. The cylindrical heating tube 110 can uniformly heat the tube wall under the surrounding of the annular magnetic induction coil, and can have a larger contact area with the aerosol generating substrate 120, so that the aerosol generation rate is improved.

The end of the heating tube 110 far away from the air inlet 112 is arranged in a sealing manner, so that the air is prevented from flowing along the length direction of the air heating channel 111, the end of the sealed air heating channel 111 is used for changing the original flowing direction of the air, the hot air can only be discharged from the air outlet 113, and the hot air can enter the aerosol generating substrate 120.

In this embodiment, the end of the gas heating channel 111 is provided with a first sealing member 170, the heating tube 110 is provided with two end openings, the first end opening of the heating tube 110 is the gas inlet 112, and the first sealing member 170 is disposed at the second end opening of the heating tube 110 and is attached to the heating tube 110 to block one end opening of the heating tube 110.

In other embodiments, the first sealing member 170 may be omitted by providing the integrally formed heat generating tube 110 having one end opened and the other end sealed.

In other embodiments, the heating element can be designed into heating structures with other shapes according to different product requirements.

In this embodiment, the tube body of the heating tube 110 is made of a metal material. The heating tube 110 is made of a metal material, so that when the heating member is located in an electromagnetic induction area of the induction coil, the heating tube 110 can receive power transmitted by the induction coil and generate heat under the action of electromagnetic induction to heat the aerosol generating substrate 120 and air.

In other embodiments, in order to adapt to heating methods of different products, the heating tube 110 may also be a tube made of ceramic or other materials with high thermal conductivity and a heating wire attached to the inner wall of the tube or embedded inside the tube. After the electric heating wire is electrified, the ceramic tube body is heated by the electric heating wire, so that the self-heating of the heating tube 110 is realized.

In this embodiment, the aerosol-generating article 100 further comprises a breathable absorbent member 140, and the breathable absorbent member 140 is connected to the heat generating member and is located at the bottom of the heat generating member. The air-permeable adsorption member 140 has high air permeability, and the air-permeable adsorption member 140 is located upstream of the heat generating member, so that air can be filtered by the air-permeable adsorption member 140 before entering the heat generating member. The air-permeable adsorption member 140 is arranged at the bottom of the heating member, and can adsorb tar and carbide flowing out of the heating member, thereby reducing the overflow of residues formed after the aerosol generating substrate is heated.

In this embodiment, the air-permeable adsorbing member 140 is made of cotton fiber. Of course, in other embodiments, the air-permeable absorbent member 140 may be made of other materials with high air permeability, high heat resistance and absorbent capacity.

In this embodiment, the aerosol-generating article 100 further comprises a filter 150, the filter 150 being located downstream of the aerosol-generating substrate 120. Note that downstream of the aerosol-generating substrate 120 refers to a downstream section in the discharge direction of the aerosol. Specifically, the aerosol formed by heating the aerosol-generating substrate is discharged from the region of the aerosol-generating substrate and then enters the region of the filter 150, and the aerosol passes through the filter 150 and is discharged to the outside for the user to inhale.

In this embodiment, the filter 150 is formed of cellulose acetate.

In this embodiment, the aerosol-generating article 100 further comprises an aerosol-cooling element 160, the aerosol-cooling element 160 being connected at both ends to the aerosol-generating substrate 120, respectively the filter 150, the aerosol-cooling element 160 being located downstream of the aerosol-generating substrate 120 and upstream of the filter 150.

The aerosol-cooling element 160 is located downstream of the aerosol-generating substrate 120 and upstream of the filter 150, and means that the aerosol is discharged from the region where the aerosol-generating substrate 120 is located, and then the aerosol is discharged after passing through the aerosol-cooling element 160 and the filter 150 in this order.

In this embodiment, the aerosol-cooling element 160 is attached to the top of the aerosol-generating substrate 120 and to the bottom of the filter 150. The aerosol-cooling element 160 is formed from a pleated, gathered polymeric sheet. The aerosol-cooling element 160 comprises a plurality of longitudinally extending channels and a plurality of apertures in cross-section, the apertures communicating with the channels. The aerosol-cooling element 160 functions to reduce the temperature of the aerosol by dissipating heat from the aerosol passing through the aerosol-cooling element 160 through a heated phase change.

In some embodiments, the aerosol-cooling element 160 may be selected from a sheet material consisting of a metal foil, a polymer sheet, and a substantially non-porous paper or paperboard. The aerosol-cooling element 160 may also comprise a sheet material selected from any one of polyethylene, polypropylene, polyvinyl chloride, polyethylene terephthalate, polylactic acid, cellulose acetate, and aluminum foil.

In this embodiment, the end of the aerosol-generating substrate 120 adjacent the air inlet 112 is in a sealed arrangement. Specifically, the one end that aerosol generation substrate 120 is close to air inlet 112 is connected with second sealing member 180, second sealing member 180 encircles the periphery that sets up at air inlet 112, in order to block that the tip that outside air from aerosol generation substrate 120 enters into aerosol generation substrate 120, guarantee that the air can follow air inlet 112 earlier and get into gas heating channel 111, again from getting into aerosol generation substrate 120 in gas heating channel 111, avoid the air to get into aerosol generation substrate 120 first and form the aerosol after, the aerosol again enters into gas heating channel 111 and heats and lead to the bitter problem of aerosol, the taste of aerosol has been guaranteed.

In this embodiment, the heat generating member is disposed coaxially with the aerosol-generating substrate 120. The heating member coaxially arranged with the aerosol generating substrate 120 makes the heating member centrally arranged in the aerosol generating substrate 120, and ensures that the aerosol generating substrate 120 is uniformly heated.

In this embodiment, the aerosol-generating article 100 further comprises a tubular member 190, the heat generating component and the aerosol-generating substrate 120 are both disposed inside the tubular member 190, and the aerosol-generating substrate 120 is located between the heat generating component and the tubular member 190 and in contact with the heat generating component.

Further, the air-permeable adsorbent 140 is disposed inside the tubular member 190 and upstream of the aerosol-generating substrate 120. The aerosol-cooling element 160 and the filter 150 are both disposed inside the tubular member 190 and in turn downstream of the aerosol-generating substrate 120. The first seal is disposed inside the tubular member 190 and is sandwiched between the aerosol-generating substrate 120 and the air-permeable adsorbent 140. The tubular member 190 is used to wrap the heat generating component, the aerosol-generating substrate 120, the air-permeable adsorbent component 140, the aerosol-cooling element 160 and the filter 150, and the heat generating component, the aerosol-generating substrate 120, the air-permeable adsorbent component 140, the aerosol-cooling element 160 and the filter 150 are assembled into a rod-shaped aerosol-generating article 100.

In some embodiments, the tubular member 190 may be made of paper or other insulating, magnetically non-conductive, high temperature resistant material.

In this embodiment, referring to fig. 2, the exhaust holes 113 are circular holes. In other embodiments, the exhaust holes 113 may also be one or more of circular holes, elliptical holes (as shown in fig. 3), triangular holes, polygonal holes, and irregular holes (as shown in fig. 4). It should be noted that a plurality of exhaust holes 113 are formed on the side wall of the heat-generating tube 110 to ensure that the hot air can be discharged to the aerosol-generating substrate 120 in time, wherein the plurality of exhaust holes 113 may be unified into one of a circular hole, an elliptical hole, a triangular hole, a polygonal hole and an opposite-type hole, or exhaust holes 113 of different shapes may be combined on one heat-generating tube 110. The above-mentioned shape of the gas discharge hole 113 specifically refers to the channel cross-sectional shape of the gas discharge hole 113.

In this embodiment, the exhaust holes 113 are arranged on the heat generating member along a first direction, and the sizes of the apertures of the exhaust holes 113 arranged along the first direction are different, and the first direction is parallel to the flowing direction of the air in the air heating passage 111. In this embodiment, the gas flows in the gas heating passage 111 in a longitudinal direction, so the gas discharge holes 113 are arranged in the longitudinal direction on the heat generating member. By setting the vent holes 113 to have different sizes in the longitudinal direction, the exhaust rate of the heating element at different positions in the longitudinal direction can be achieved, thereby ensuring that the gas can be exhausted from different positions in the longitudinal direction into the aerosol-generating substrate 120. For example, the hole diameter of the exhaust hole 113 may gradually increase from bottom to top, that is, the hole diameter of the exhaust hole 113 located at the upstream section of the heat generating member is smaller than the hole diameter of the exhaust hole 113 located at the downstream section of the heat generating member. After the air enters the gas heating channel 111 of the heating element, a part of the air is discharged from the exhaust hole 113 at the upstream section of the heating element, and the other part of the air continuously flows along the gas heating channel 111 because the air is not discharged in time, flows to the downstream section of the heating element, and is discharged from the exhaust hole 113 at the downstream section of the heating element.

In the present embodiment, the air discharge holes 113 are unevenly arranged in the longitudinal direction. Specifically, the number of the exhaust holes 113 near the bottom of the heat generating member may be greater than the number of the exhaust holes 113 far from the bottom of the heat generating member, so that more hot air can enter the bottom area of the aerosol generating substrate from the area near the bottom of the heat generating member.

In this embodiment, the opening diameter of the inlet end of the duct of the exhaust hole 113 is smaller than the opening diameter of the outlet end of the duct of the exhaust hole 113. In this embodiment, the diameter of the vent 113 may increase gradually along the direction of flow of the gas in the vent 113, forming a trumpet-shaped vent, so that heated air can more conveniently enter the aerosol-generating substrate from the gas heating channel 111.

In other embodiments, the diameter of the opening of the inlet end of the cell of the vent 113 is greater than the diameter of the opening of the outlet end of the cell of the vent 113. Specifically, the diameter of the hole of the exhaust hole 113 may also be gradually reduced along the flowing direction of the gas in the exhaust hole 113, so as to form a reverse trumpet-shaped hole. The inverted flared channels allow heated air to be collected as the diameter of the opening decreases after the heated air enters from the inlet end of the exhaust port 113, and to be more concentrated as the heated air exits from the outlet end of the exhaust port 113, thereby allowing the heated air to more easily enter the aerosol substrate.

In this embodiment, the hole of the exhaust hole 113 is disposed obliquely, the hole of the exhaust hole 113 is inclined toward the second direction, and the second direction is a direction in which the gas is discharged from the inside of the aerosol-generating substrate 120 to the outside. It should be noted that, in this embodiment, the direction in which the gas is discharged from the inside of the aerosol-generating substrate 120 to the outside is the direction from the bottom to the top, and the duct of the exhaust hole 113 is inclined (i.e., disposed obliquely upward) to the direction in which the gas is discharged from the inside of the aerosol-generating substrate 120 to the outside, that is, the position of the opening of the duct inlet end of the exhaust hole 113 in the longitudinal direction is lower than the opening of the duct outlet end of the exhaust hole 113, so that when the hot air flows through the exhaust hole 113, the hot air can have an upward flow direction, and the air flow is smoother.

Referring to fig. 5, fig. 5 shows a second embodiment of the present invention. The present embodiment is different from the first embodiment in that the heat generating member of the present embodiment further includes a preheating pipe 130. The preheating pipe 130 is connected in the inner cavity of the heating pipe 110, the gas heating channel 111 comprises a first channel 1111 and a second channel 1112, the first channel 1111 is located in the inner cavity of the preheating pipe 130, the second channel 1112 is located in the interval area between the outer side wall of the preheating pipe 130 and the inner wall of the heating pipe 110, the gas inlet 112 is arranged at the end of the preheating pipe 130, the heating pipe 110 and one end of the preheating pipe 130 far away from the gas inlet 112 are both arranged in a sealing way, and the first channel 1111 is communicated with the second channel 1112.

In this embodiment, after entering the first channel 1111 in the preheating pipe 130, the air flows along the longitudinal direction of the preheating pipe 130, since the end of the preheating pipe 130 away from the air inlet 112 is sealed, the air can completely enter the second channel 1112, and simultaneously, under the blockage of the end of the heating pipe 110, the air enters the second channel, flows in the opposite direction along the heating pipe 110, and is discharged from the air outlet 130 on the heating pipe 110 to the aerosol-generating substrate 120. It should be noted that, when the air flows in the second channel 1112, the flow direction of the air is opposite to the flow direction of the air in the first channel 1111, so that the movement path of the air in the heat generating pipe 110 is the sum of the path of the air in the first channel 1111 and the path of the air in the second channel, thereby increasing the heating path of the air in the inner cavity of the heat generating pipe 110.

In the embodiment, the preheating pipe 130 is added in the inner cavity of the heating pipe 110, so that the heating stroke of the air in the inner cavity of the heating pipe 110 is increased, and the heating stroke of the air is increased. The sequential entry of air into the first and second channels for heating increases the length of heating time at the same flow rate as compared to a single heating channel, and the air can be heated as close to the desired temperature as possible, thereby allowing sufficient heat to soak and heat the aerosol-generating substrate 120. Through the heating stroke of increase air, even user's strength suction, when producing bigger air velocity, the air that gets into in the heating channel also can be preheated to anticipated temperature, from this, can effectively reduce the fluctuation of air preheating temperature, preheating temperature is more stable, can not produce great fluctuation because of user's suction dynamics.

In this embodiment, the ends of the second channels 1112 are all sealingly disposed. In the present application, the path end in the direction of air flow in the second channel is referred to as the end of the second channel 1112. In this embodiment, the end of the second channel 1112 is the end of the heat-generating tube 110 close to the air inlet 112. In this embodiment, in order to prevent the hot air from leaking out of the end of the heating tube 110 close to the air inlet 112, the end surface of the heating tube 110 close to the air inlet is lower than the bottom surface of the aerosol-generating substrate, and the end of the heating tube 110 close to the air inlet 112 is hermetically disposed.

In other embodiments, when the end surface of the heat generating tube 110 near the air inlet end is flush with the bottom surface of the aerosol-generating substrate 120, or when the end surface of the heat generating tube 110 near the air inlet end is higher than the bottom surface of the aerosol-generating substrate 120, the end of the heat generating tube 110 near the air inlet 112 may be disposed in a sealed manner, or may be disposed in communication with the aerosol-generating substrate 130, that is, the end of the second channel may be disposed in a sealed manner, or may be disposed in communication with the aerosol-generating substrate 130.

In this embodiment, a first sealing member 170 is disposed at an end of the heat generating pipe 110 away from the air inlet 112, and a second sealing member 180 is disposed at an end of the second passage. A second seal 180 is also attached to an end of the aerosol-generating substrate 120 proximate the air inlet 112, the second seal 180 being able to seal both the end of the aerosol-generating substrate 120 and the end of the second channel 1112.

In this embodiment, the preheating pipe 130 may be made of metal, ceramic, glass, or other materials with high temperature resistance and high thermal conductivity.

In this embodiment, a ventilation structure is disposed at an end of the preheating pipe 130 away from the air inlet, and the first channel is communicated with the second channel through the ventilation structure. In particular, the ventilation structure 131 may be a slot or a through hole.

It should be noted that other technical features of this embodiment are the same as those of the first embodiment, and are not described herein again.

Based on the aerosol-generating article 100 described above, embodiments of the present application also provide an aerosol-generating device, which, referring to fig. 6, includes a housing 200, an induction coil 300, a power supply 600, a control circuit board 700, and the aerosol-generating article 100 described in any of the above aspects. Induction coil 300, power 600 and control circuit board 700 are all installed the inside of casing 200, and power 600 is connected with control circuit board 700, and control circuit board 700 is connected with induction coil 300 for providing alternating current for induction coil 300, but aerosol-generating article 100 has the part of the piece that generates heat and plug in the inside of casing 200. Wherein the induction coil 300 is disposed around the outside of the heat generating member of the aerosol-generating article 100 when the aerosol-generating article is inserted into the housing 200, the heat generating member includes a heat generating tube 110, and the heat generating tube 110 is made of a metal material.

It will be appreciated that the aerosol generating device operates as follows:

after the induction coil 300 is powered on, the heating element inserted into the housing 200 receives the power transmitted by the induction coil and generates electromagnetic induction, so as to start heating, and after the heating tube 110 heats, the aerosol generating substrate 120 is heated in a gas and fixed dual mode, so that the aerosol generating substrate 120 is heated to generate aerosol, and the aerosol is discharged outwards and is supplied to a user for sucking.

Compared with the prior art, the aerosol generating device at least has the following technical effects:

the aerosol generating device carries out electromagnetic heating to the heating tube 110 through the induction coil 300, and the heating tube 110 can carry out dual-mode heating to the aerosol generating substrate 120, so that the aerosol generating substrate 120 can be fully heated, the problem that the carbonization of the aerosol generating substrate is insufficient is avoided, more aerosols can be generated, the atomization amount is increased, and the smoking taste is improved.

In this embodiment, the aerosol-generating device further comprises a carrier 400, the carrier 400 being mounted inside the housing 200, the carrier 400 being provided with a slot shaped to fit the shape of the aerosol-generating article 100, the carrier 400 being adapted to carry the aerosol-generating article 100 inserted inside the housing 200. An air inlet passage 900 may be provided between the carrier 400 and the housing 200, an air inlet through-hole being provided in the bottom of the carrier 400, the air inlet passage 900 being in communication with the slot via the air inlet through-hole, such that air can pass through the air inlet passage 900 and the air inlet through-hole in sequence to reach the air inlet of the aerosol-generating article 100. In particular, air enters the interior of the device from the air inlet passage 900 between the carrier 400 and the housing 200, then from the air inlet passage 900 into the air inlet through-holes, and finally from the air inlet through-holes into the gas heating passage of the aerosol-generating article 100 located in the socket.

It will be appreciated that in order to improve the overall protection of the aerosol generating device against water, dust, etc., the air inlet passage may not be provided between the holder 400 and the housing 200, but a gap may be formed between the slot of the holder 400 and the aerosol generating article 100, and the air inlet passage may be formed through the gap between the slot of the holder 400 and the aerosol generating article 100, so that air may enter the air heating passage of the aerosol generating article 100 from the outside.

In this embodiment, the aerosol generating device further includes a magnetic isolation plate 500, the magnetic isolation plate 500 is connected to the housing 200, and the magnetic isolation plate 500 is disposed between the induction coil 300 and the housing 200. The magnetic isolation plate 500 is used for isolating the induction coil 300 from the outside, and preventing the induction coil 300 from generating magnetic adsorption force on external articles when in work; the magnetic shield 500 may also be used to prevent the induction coil 300 from being affected by external objects, so that the magnetic field generated by the induction coil 300 can be more concentrated inside the aerosol generating device.

In this embodiment, the aerosol generating device further includes a charging circuit board 800, the power supply 600 is a rechargeable battery, the charging circuit board 800 is installed inside the housing, and the charging circuit board 800 is electrically connected to the power supply 600.

It is to be understood that the above-described embodiments are merely illustrative of some, but not restrictive, of the broad invention, and that the appended drawings illustrate preferred embodiments of the invention and do not limit the scope of the invention. This application is capable of embodiments in many different forms and is provided for the purpose of enabling a thorough understanding of the disclosure of the application. Although the present application has been described in detail with reference to the foregoing embodiments, it will be apparent to one skilled in the art that the present application may be practiced without modification or with equivalents of some of the features described in the foregoing embodiments. All equivalent structures made by using the contents of the specification and the drawings of the present application are directly or indirectly applied to other related technical fields and are within the protection scope of the present application.

Claims

1. The utility model provides an aerosol generates goods which characterized in that, includes and generates the piece and aerosol generates the substrate, generate heat the piece and be equipped with gas heating channel, air inlet and exhaust hole, gas heating channel is located generate heat the inner chamber of piece, gas heating channel with the air inlet exhaust hole intercommunication, aerosol generates the substrate with the outside contact of generating heat the piece, and is located the pore in exhaust hole is given vent to anger and is served, makes the air admission can pass through behind the gas heating channel inside the exhaust hole enters into aerosol generates the substrate.

2. An aerosol-generating article according to claim 1, wherein the heat generating component comprises a heat generating tube, the inner cavity of the heat generating tube is the gas heating channel, the end of the heat generating tube remote from the gas inlet is a sealing arrangement, the vent is provided in a side wall of the heat generating tube, and the aerosol-generating substrate is outside the heat generating tube and in contact with the heat generating tube.

3. An aerosol-generating article according to claim 2, wherein the heat generating component further comprises a pre-heater tube connected in the inner cavity of the heat generating tube, the gas heating channel comprises a first channel and a second channel, the first channel is located in the inner cavity of the pre-heater tube, the second channel is located in a spaced region between an outer side wall of the pre-heater tube and an inner wall of the heat generating tube, the gas inlet is disposed at an end portion of the pre-heater tube, the heat generating tube and an end of the pre-heater tube remote from the gas inlet are both disposed in a sealed manner, a side wall of the pre-heater tube is provided with a gas permeable structure, and the first channel and the second channel are communicated through the gas permeable structure.

4. An aerosol-generating article according to claim 1, further comprising an air-permeable adsorbent member connected to the heat generating member and located at a bottom of the heat generating member.

5. An aerosol-generating article according to any of claims 1 to 4, further comprising a filter attached to the aerosol-generating substrate, the filter being located downstream of the aerosol-generating substrate.

6. An aerosol-generating article according to claim 5, further comprising an aerosol-cooling element connected at both ends to the aerosol-generating substrate and the filter, respectively, the aerosol-cooling element being located downstream of the aerosol-generating substrate and upstream of the filter.

7. An aerosol-generating article according to any of claims 1 to 4, wherein the end of the aerosol-generating substrate adjacent the air inlet is sealingly disposed.

8. An aerosol-generating article according to any of claims 1 to 4, wherein the heat generating member is disposed coaxially with the aerosol-generating substrate.

9. An aerosol-generating article according to any of claims 1 to 4, wherein the vent holes are one or more combinations of circular holes, elliptical holes, triangular holes, polygonal holes and profiled holes.

10. An aerosol-generating article according to any one of claims 1 to 4, wherein the vent holes are arranged in a first direction on the heat generating member, the vent holes arranged in the first direction having different aperture sizes, the first direction being parallel to the direction of flow of air in the gas heating channel.

11. An aerosol-generating article according to any of claims 1 to 4, wherein the vent has a smaller diameter at the inlet end of the cell than at the outlet end of the cell.

12. An aerosol-generating article according to any of claims 1 to 4, wherein the channels of the vent are obliquely arranged, the channels of the vent being inclined to a second direction, the second direction being the direction in which gas is expelled outwardly from the interior of the aerosol-generating substrate.

13. An aerosol generating device comprising a housing, an induction coil, a power supply, a control circuit board and an aerosol-generating article according to any of claims 1 to 12;

14. An aerosol generating device according to claim 13, further comprising a carrier mounted inside the housing, the carrier being provided with a slot shaped to fit the shape of the aerosol generating article, the carrier being adapted to carry the aerosol generating article.

15. An aerosol generating device according to claim 13, further comprising a magnetic shield connected to the housing, the magnetic shield being disposed between the induction coil and the housing.