CN218073474U - Heating module and aerosol generating device - Google Patents

Abstract

The application relates to a heating module and an aerosol-generating device, comprising a tubular substrate, wherein a containing cavity is formed in the tubular substrate and is used for containing an aerosol-generating product; a heater disposed on the inner side of the tubular substrate for heating the aerosol-generating article to produce an aerosol; the first tab is connected with the near end of the tubular matrix and is arranged by being turned and bent outwards relative to the tubular matrix; a plurality of electrodes, one end of which is arranged on the inner side surface of the tubular matrix and is electrically connected with the heater, wherein the other end of at least one electrode is arranged on the first tab; and a first electrical connector electrically connected to the electrode disposed on the first tab.

Description

Heating module and aerosol generating device

Technical Field

The embodiment of the application relates to the technical field of aerosol generation, in particular to a heating module and an aerosol generating device.

Background

Existing aerosol-generating devices typically comprise a heater by which the aerosol-generating article is heated to generate the aerosol. In existing heaters, the heating layer is usually arranged on the outer side surface of the tubular base body, and an electrical connector is conveniently arranged, so that an electrical connection is established between the heating layer and the electrical connector. However, the tubular substrate has a thickness, which is located between the heating layer and the aerosol-generating article, which not only consumes heat or energy released by the heating layer, thereby increasing energy consumption, but also delays the transfer of heat to the aerosol-generating article.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a heating module and aerial fog generating device, arrange the heater at the medial surface of tubulose base member, and be provided with on the near-end of tubulose base member for the outside first utmost point ear of upset bending of tubulose base member, the heater electrode of being connected with the heater, extend to on the lateral surface of first utmost point ear from tubulose base member medial surface, thereby the heater can set up with its electrode homonymy, and make things convenient for the welding or the equipment of electrode connecting piece through the setting of first utmost point ear, and do not influence aerosol and generate the near-end of goods from the tubulose base member and pack into and hold the chamber.

The embodiment of the application provides a heating module, includes:

a tubular substrate having a receiving cavity formed therein for receiving an aerosol-generating article, the tubular substrate comprising a proximal end and a distal end, the aerosol-generating article entering the receiving cavity from the proximal end;

a heater disposed on an inner side of the tubular substrate for heating the aerosol-generating article to produce an aerosol;

the first tab is connected with the near end of the tubular base body and is arranged in a mode of being turned and bent outwards relative to the tubular base body;

a plurality of electrodes, one end of which is arranged on the inner side surface of the tubular base body and is electrically connected with the heater, wherein the other end of at least one electrode is arranged on the first electrode lug in an extending way;

a first electrical connector electrically connected with the electrode disposed on the first tab.

The embodiment of the application provides an aerial fog generating device, include heating module.

Above heating module and aerosol generating device, the inside chamber of holding of tubular base member is used for holding aerosol generating product, the heater is arranged on the medial surface of tubular base member, wherein tubular base member is provided with first utmost point ear, the part of at least an electrode of being connected with the heater electricity is arranged on first utmost point ear, first utmost point ear and the electrode on it outwards overturns the bending, thereby electrode extending to on the medial surface of first utmost point ear outwards sets up, so when the electrode that turns up is connected with first electric connector electricity, first electric connector can be set up in the periphery of tubular base member, so do not influence pack aerosol generating product into from the near-end of tubular base member and hold the chamber, make the heater can heat aerosol generating product more directly, thereby help the heater to heat aerosol generating product more fast, and save the power consumption.

And part of the electrode is arranged on the inner side surface of the tubular base body and partially extends to the inner side surface of the first lug, so that the process of arranging the heater and the electrode on the tubular base body can be simplified.

Drawings

One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the figures in which like reference numerals refer to similar elements and which are not to scale unless otherwise specified.

Figure 1 is a schematic view of an aerosol-generating device provided by an embodiment of the present application;

FIG. 2 is a schematic view of a heating module according to an embodiment of the present application;

FIG. 3 is a schematic view of a heating module according to another embodiment of the present application;

FIG. 4 is an expanded schematic view of a heater provided in accordance with an embodiment of the present application;

FIG. 5 is an expanded view of a heater provided in accordance with an embodiment of the present application;

FIG. 6 is a schematic view of a heater having two first tabs deployed according to an embodiment of the present application;

FIG. 7 is an expanded view of a heater provided in accordance with an embodiment of the present application;

FIG. 8 is an expanded view of a heater provided in accordance with an embodiment of the present application;

FIG. 9 is a schematic diagram of an expanded view of a heater provided in accordance with an embodiment of the present application;

in the figure:

1. an aerosol-generating article;

2. a heating module; 21. a tubular base; 211. an accommodating chamber; 212. a metal member; 213. an insulating layer; 22. a heater; 23. an electrode; 231. a first electrode; 232. a second electrode; 241. A first electrical connection; 242. a second electrical connection; 27. a first tab; 28. a second tab;

3. a power supply component; 31. an electric core; 32. and a controller.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.

The terms "first", "second" and "third" in this application are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to imply a number or order of indicated features. In the embodiment of the present application, all the directional indicators (such as up, down, left, right, front, and rear … …) are used only to explain the relative positional relationship or movement of the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.

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 may be combined with other embodiments.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

An embodiment of the present application provides an aerosol-generating device for heating an aerosol-generating article to volatilize an aerosol from the aerosol-generating article for consumption, the aerosol may comprise herbal medicine, nicotine or flavourant such as tobacco flavourant.

In the embodiment shown in figure 1, the aerosol-generating device comprises a receiving chamber for receiving an aerosol-generating article 1 and a heating module 2 for heating the aerosol-generating article, and further comprises a power supply assembly 3, the power supply assembly 3 being for supplying power for operation of the heating module 2.

Referring to figure 1, the aerosol-generating device has an insertion opening through which an aerosol-generating article 1, such as a cigarette, is removably received within a receiving chamber; at least one part of the heating module 2 extends longitudinally in the receiving cavity, and generates heat through electromagnetic induction under a changing magnetic field, or generates heat through the heat effect of a resistor when electrified, or radiates infrared rays to the aerosol generating product when excited, so that the aerosol generating product 1 such as a cigarette is heated, at least one component of the aerosol generating product 1 is volatilized, and aerosol for suction is formed; the power supply module 3 includes a battery core 31, and the battery core 31 is a rechargeable dc battery core and can output dc current. In other embodiments, the battery core 31 may also be a disposable battery, which is not rechargeable or needs not to be charged. In other embodiments, the power supply 3 may be a wired power supply which is plugged directly into the mains to power the aerosol generating device.

In an alternative embodiment, the battery cell 31 may provide a dc supply voltage in a range from about 2.5V to about 9.0V, and the battery cell 31 may provide a dc current with an amperage in a range from about 2.5A to about 20A.

The power of the power supply assembly 3 may be supplied to the heating module 2 as a pulsed signal, and the amount of power delivered to the heating module 2 may be adjusted by varying the duty cycle or pulse width or pulse amplitude of the power signal.

In addition, the power supply module 3 further includes a controller 32, and the controller 32 is electrically connected to the electric core 31 and the heating module 2, and is used for controlling the electric core 31 to output the current, voltage or electric power of the heating module 2.

The aerosol generating device comprises a user interface (e.g. a graphical display or a combination of LED indicator lights, etc.) that inserts the detector and communicates information about the aerosol generating device to a user.

The insertion detector may detect the presence and characteristics of the aerosol-generating article in proximity to the heating module 2 in the heat transfer path and signal the presence of the aerosol-generating article 1 to the controller 32. It will be appreciated that the provision of an insertion detector is optional and not necessary.

The controller 32 controls the user interface to display system information such as cell 31 power, temperature, status of the aerosol-generating article 1, number of puffs, other information, or a combination thereof.

The controller 32 may comprise a programmable microprocessor. In another embodiment, the controller 32 may comprise a special-purpose electronic chip, such as a Field Programmable Gate Array (FPGA) or an Application Specific Integrated Circuit (ASIC). In general, any device capable of providing a signal capable of controlling the heating module 2 may be used with the embodiments discussed herein. In one embodiment, the controller 32 is configured to detect a rate of temperature change of the actual temperature of the heating module 2 relative to a target temperature to detect a temperature indicative of a user puff event.

The controller 32 may include a storage component, which may include a memory and/or a buffer. The storage assembly may be configured to record changes in the detected airflow or user puff. The storage component may record a count of puffs by the user or the time of each puff. The storage assembly may also be configured to record the temperature of the heating module 2 and the power supplied during each puff. The recorded data may be displayed on the user interface under the call of the controller 32 or output via another output interface, and when the recorded number of puffs reaches the preset total number of puffs for the aerosol-generating article 1, the controller 32 may reset, or the controller 32 may clear the recorded number of puffs, or the controller 32 may control the aerosol-generating device to shut down, or the controller 32 may control the power supply 3 to stop supplying power to the heater, or the controller 32 may prompt the user that the aerosol-generating article 1 has reached a puff limit by sound, light, vibration, or the like.

User suction may be useful for subsequent research and device maintenance and design. The user's suction port number data may be transmitted to an external memory or processing device by any suitable data output means. For example, the aerosol generating device may comprise a radio, bluetooth, or Universal Serial Bus (USB) slot connected to the controller 32 or memory. Alternatively, the aerosol generating device may be configured to transmit data from the memory to an external memory in the cell 31 charging device whenever the aerosol generating device is recharged via an appropriate data connection.

Further in alternative embodiments, the aerosol-generating article 1 may employ a tobacco-containing material that releases volatile compounds from the smokable article when heated; or it may be a non-tobacco material that is suitable for electrically heated smoking after heating. The aerosol-generating article 1 may employ a solid substrate comprising one or more of a powder, granules, shredded strips, strips or flakes of one or more of vanilla leaf, tobacco leaf, homogenised tobacco, expanded tobacco; alternatively, the aerosol-generating article 1 may contain additional tobacco or non-tobacco volatile flavour compounds to be released when the aerosol-generating article 1 is heated. In some alternative embodiments, the aerosol-generating article 1 is produced to have the shape of a conventional cigarette or cigar.

Further in alternative embodiments, the aerosol-generating article 1 may be contained in a smoking article. During operation, the smoking article containing the aerosol-generating article 1 may be fully contained within the aerosol-generating device. In this case, the user may draw on the mouthpiece of the aerosol generating device. The mouthpiece may be any part of the aerosol-generating device that is placed in the mouth of a user so as to inhale directly the aerosol generated by the aerosol-generating article 1 or aerosol-generating device. The aerosol is delivered into the mouth of the user via the mouthpiece. Alternatively, during operation, the smoking article comprising the aerosol-generating article 1 may be partially contained in an aerosol-generating device. In this case, the user may draw directly on the mouthpiece of the smoking article.

In one embodiment, referring to fig. 1-3, the heating module 2 includes a tubular substrate 21, a heater 22 and a plurality of electrodes 23.

The tubular substrate 21 is internally formed with a receiving cavity 211 for receiving the aerosol-generating article 1, a heater 22 is arranged on a side of the tubular substrate 21 for heating the aerosol-generating article 1 to produce an aerosol, at least part of the electrodes 23 are arranged on the tubular substrate 21, the heater 22 is electrically connected to the electrodes 23, of the plurality of electrodes 23, part of the electrodes 23 being positive electrodes and part of the electrodes 23 being negative electrodes. In some embodiments, the heating module 2 further includes a plurality of electrical connectors, one end of each electrical connector is electrically connected to the electrode 23, the other end of each electrical connector is electrically connected to the power module 3, and the positive electrode and the negative electrode respectively draw electricity from the power module 3 through different electrical connectors, so that the power module 3 provides electric power for heating the heater 22. In one embodiment, the electrical connection is a wire; in another embodiment, the electrical connection member is a conductive sheet, a conductive rod, or the like having a certain hardness or elasticity.

In an embodiment, referring to fig. 2, the base of the tubular base 21 is made of a metal piece 212, with an insulating layer 213 on the side of the metal piece 212.

The metal member 212 is made of metal, thereby having a small specific heat capacity and a large heat transfer efficiency according to the formula of energy consumption: q = CM Δ T, Q is the amount of absorbed heat, C is the specific heat capacity, M is the mass, Δ T is the amount of temperature increase. Using metal as the base of the tubular base body 21, at the same mass M and at the same elevated temperature, allows to significantly reduce the energy consumption of the heating module 2.

In one embodiment, the thickness of the metal member 212 may be 0.03-0.2mm, and further, the thickness of the metal member 212 may be between 0.04-0.1mm, or between 0.05-0.08mm, etc., so that the metal member 212 has a very thin thickness, and thus, has a very small mass, and thus, the energy consumption of the tubular substrate 21 itself can be further reduced, and energy saving can be achieved.

The metal part 212 has an insulating layer 213 on the inner side surface, both the heater 22 and the electrode 23 are disposed on the insulating layer 213, and the insulating layer 213 is used to connect the metal part 212 with the heater 22 and the electrode 23 in an insulating manner.

The insulating layer 213 may be a metal oxide insulating layer, which may be formed by surface oxidation of the metal 212. For example, the metal member 212 is made of FeCrAl alloy, and then the metal member 212 is placed in an air environment and subjected to surface treatment by high-temperature oxidation, so that an aluminum oxide film is formed on the surface of the metal member 212, and the surface of the metal member 212 is insulated. Specifically, the metal member 212 made of FeCrAl alloy may be treated at a high temperature of 1050-1100 ℃ for 0.5-8 hours, preferably 1-3 hours, in an air environment to form the insulating layer 213.

The insulating layer 213 may be formed by applying an insulating paint, such as glass glaze, to the surface of the metal pipe 212.

In an embodiment, the insulating layer 213 is arranged on the inner side of the metal piece 212, such that both parts of the electrode 23 and the heater 22 are arranged on the inner side of the tubular substrate 21, enabling the heater 22 to be closer to the aerosol-generating article 1 located in the receiving cavity 211, i.e. the spacing between the heater 22 and the aerosol-generating article 1 is very small, helping to provide an efficient heating of the aerosol-generating article 1 by the heater 22.

In a particular embodiment, where the aerosol-generating article 1 is a cigarette having a diameter of 5.4mm, the heater 22 disposed on the inside of the tubular substrate 21 may have an internal diameter of 5.93mm; in another embodiment where the aerosol-generating article 1 is a cigarette having a diameter of 6.6mm, the heater 22 arranged on the inside of the tubular substrate 21 may have an internal diameter of 7.1mm.

In one embodiment, the heater 22 is a resistance heating coil or a resistance heating net or a resistance heating circuit embedded on the inner side of the tubular substrate 21, and the heater 22 may be made of a resistive conductive material such as fe-cr-al, nicr, ni-fe, pt, w, ag, conductive ceramic, or a conductive material containing at least one of the foregoing materials, so that when conducting electricity, heat is generated by the thermal effect of resistance to heat the aerosol-generating article 1, thereby volatilizing at least one component in the aerosol-generating article 1 to form aerosol.

In one embodiment, the heater 22 is a resistive film formed on the inner surface of the insulating layer 213 by a process such as thick film printing, spraying, vapor deposition, ion implantation, ion sputtering, and the like, using a resistive conductive material such as fe-cr-al alloy, nicr alloy, ni-fe alloy, platinum, tungsten, silver, conductive ceramic, and the like.

In one embodiment, the resistive film may be between 5-20 μm thick; in one embodiment, the resistive film has a resistance value between 0.5 Ω and 3 Ω; in one embodiment, the temperature coefficient of resistance of the resistive film is greater than 1600 ppm/deg.C.

In one embodiment, the heater 22 is an infrared heating film, and the infrared heating film receives electric power to generate heat, so as to generate infrared rays with certain wavelength, for example: 8-15 μm far infrared ray. When the wavelength of the infrared light matches the absorption wavelength of the aerosol-generating article 1, the energy of the infrared light is readily absorbed by the aerosol-generating article 1. In the embodiment of the present application, the wavelength of the infrared ray is not limited, and may be an infrared ray of 0.75 to 1000 μm, and optionally a far infrared ray of 1.5 to 400 μm.

The infrared heating film is coated on the outer surface of the substrate after being fully and uniformly stirred by far infrared electric heating ink, ceramic powder and inorganic adhesive, and then is dried and cured for a certain time, wherein the thickness of the infrared heating film is 30-50 mu m; certainly, the infrared heating film can also be coated on the outer surface of the substrate after being mixed and stirred by tin tetrachloride, tin oxide, antimony trichloride, titanium tetrachloride and anhydrous copper sulfate according to a certain proportion; or one of a silicon carbide ceramic layer, a carbon fiber composite layer, a zirconium-titanium oxide ceramic layer, a zirconium-titanium nitride ceramic layer, a zirconium-titanium boride ceramic layer, a zirconium-titanium carbide ceramic layer, an iron-based oxide ceramic layer, an iron-based nitride ceramic layer, an iron-based boride ceramic layer, an iron-based carbide ceramic layer, a rare earth oxide ceramic layer, a rare earth nitride ceramic layer, a rare earth boride ceramic layer, a rare earth carbide ceramic layer, a nickel-cobalt oxide ceramic layer, a nickel-cobalt nitride ceramic layer, a nickel-cobalt boride ceramic layer, a nickel-cobalt carbide ceramic layer or a high-silicon molecular sieve ceramic layer; the infrared heating film can also be the existing coating of other materials.

When the heater 22 is a resistive film or an infrared heating film, the electrode 23 is an electrode film, the thickness of the electrode film may be 5 to 20 μm, and/or the resistance of the electrode 23 is less than 0.1 Ω. The electrode 23 may comprise a silver-containing material and thus have a relatively low electrical resistance, and the electrode 23 may likewise be formed at least partially on the surface of the heater 22 using thick film printing, spraying, vapor deposition, ion implantation, ion sputtering, or the like.

In one embodiment, both the heater 22 and the electrode 23 are disposed on the insulating layer, and a portion of the electrode 23 overlaps the heater 22. In one embodiment, the heater 22 is disposed on an insulating layer and the electrode 23 is disposed on a surface of the heater 22, the electrode 23 completely coinciding with the heater 22. In one embodiment, the electrode 23 is disposed on an insulating layer, the heater 22 covers the electrode 23 and is disposed on the insulating layer, and the heater 22 is a structure that completely covers the electrode 23 such that a portion of the electrode 23 is exposed.

In one embodiment, the electrode 23 is a metal strip, a portion of which is disposed inside the tubular substrate 21, electrically connected to the heater 22, a portion of which extends outside the tubular substrate 21, and then turned over.

In an embodiment, the heater 22 may be a flexible heating film such as a PFC flexible heating film, a graphene flexible heating film, etc., and may be held on the inner side surface of the tubular substrate 21 by adhesion, sintering, etc.

Since part of the electrode 23 and the heater 22 are arranged on the inside of the tubular substrate 21, the tubular substrate 21 having a proximal end and a distal end, the interior of the tubular substrate 21 being adapted to receive the aerosol-generating article 1, the spacing between the electrode 23 and the heater 22 inside the tubular substrate 21 and the aerosol-generating article 1 is very small after the aerosol-generating article 1 has been loaded into the receiving cavity 211 from the proximal end of the tubular substrate 21.

In order for the aerosol-generating article 1 to enter the receiving cavity 211 through the proximal end of the tubular substrate 21, and in order for the electrical connection to not interfere with the entry of the aerosol-generating article 1 into the receiving cavity 211, referring to fig. 3, a first tab 27 is attached to the proximal end of the tubular substrate 21, and a portion of the electrode 23 (first electrode 231 shown in fig. 4-9) is disposed on the inner side of the tubular substrate 21 for electrical connection with the heater 22 also disposed on the inner side of the tubular substrate 21, and at least a portion of the electrode 23 is disposed on the first tab 27, and the first tab 27 is turned outwardly relative to the tubular substrate 21 such that at least a portion of the electrode 23 on the first tab 27 is not only outside the tubular substrate 21, but also is disposed outwardly. The electrical connections comprise a first electrical connection 241 and a second electrical connection 242, the first electrical connection 241 being electrically connected with the outwardly disposed first electrode 231, and therefore the first electrical connection 241 being located entirely outside the tubular substrate 21 without interfering with the insertion of the aerosol-generating article 1 into the receiving cavity 211 from the proximal end of the tubular substrate 21.

At least one of the electrodes 23 (e.g. the second electrode 232 shown in fig. 4-9) is disposed at least partially inside the distal end of the tubular substrate 21 for electrical connection with the second electrical connection member 242. In one embodiment, after the tubular substrate 21 has a large axial length resulting in the aerosol-generating article 1 being loaded into the receiving cavity 211, the bottom of the aerosol-generating article 1 does not reach the distal end of the tubular substrate 21 such that at least a portion of the second electrode 232 is exposed to the receiving cavity 211 without being obscured by the aerosol-generating article 1, at which time the second electrical connection member 242 is electrically connected directly to the second electrode 232 located inside the distal end and such that the second electrical connection member 242 is not sandwiched between the second electrode 232 and the aerosol-generating article 1 such that the second electrical connection member 242 does not squeeze or obstruct the aerosol-generating article 1 and does not increase the spacing between the aerosol-generating article 1 and the heater 22.

In another embodiment, where the length of the tubular substrate 21 is compatible with the length of the aerosol-generating article 1, the base of the aerosol-generating article 1 occupies at least part of the distal end of the tubular substrate 21 after insertion of the aerosol-generating article 1 into the receiving cavity, resulting in inconvenience of electrically connecting the second electrical connector 242 to the second electrode 232 located inside the distal end of the tubular substrate 21. To overcome this problem, referring to fig. 2, a second tab 28 is connected to the distal end of the tubular substrate 21, part of the second electrode 232 is arranged on the inner side of the tubular substrate 21 to be electrically connected to the heater 22, part of the second electrode 232 is arranged on the inner side of the second tab 28, the second tab 28 can carry the second electrode 232 thereon to be folded outwardly so that part of the second electrode 232 is disposed outwardly, and then the second electrical connector 242 is electrically connected to the outwardly disposed second electrode 232, although in other embodiments the second tab 28 can remain axially extended along the tubular substrate 21 without being folded over so that the aerosol-generating article 1 is not hindered from entering the receiving cavity 211 and the spacing between the aerosol-generating article 1 and the heater 22 is not increased when the second electrical connector 242 is electrically connected to the second electrode 232 on the inner side of the second tab 28 due to the second electrode 232 extending outside the tubular substrate 21.

In one embodiment, the first tab 27, the second tab 28 and the tubular substrate 21 are integrally formed; or the first tab 27, the second tab 28 and the tubular base body 21 are made of the same metal piece, i.e. the base of the first tab 27, the second tab 28 is also a metal piece, the inner side of which has an insulation layer 213, on which insulation layer 213 the first electrode 231 is arranged, since the first tab 27 and the second tab 28 are made of metal, the first tab 27 and the second tab 28 can be folded over, so that the first tab 27 and the second tab 28 can be turned outwards.

In an embodiment, the first tab 27, the second tab 28 and the tubular substrate 21 may be made of the same tubular body. Specifically, the tubular body may be made of metal or other bendable material, the proximal end of the tubular body is cut or cut to form at least one notch, the remaining portion, which corresponds to the circumferential direction of the notch and is not cut or cut, forms a primary shape of the first tab 27, and then the primary shape of the first tab 27 is bent in an outward turning manner, so as to form a final shape of the first tab 27. The remaining portion, which corresponds axially to the notch and is not cut or cut, remains tubular and constitutes the tubular base body 21. The heater and the electrodes can be arranged on the inner side surface of the tubular body before the tubular body is cut or cut; alternatively, the heater 22 and the electrode 23 may be cut or cut into a tubular body, and then arranged on the inner side of the tubular body, and finally, the primary-shaped first tab 27 is turned outward such that at least a portion of the electrode 23 on the first tab 27 is disposed outward.

In one embodiment, the first tab 27, the second tab 28 and the tubular substrate 21 may be made from the same flexible sheet material (e.g., sheet metal). Specifically, (1) the heater 22 and the electrode 23 may be first disposed on the inner side of the flexible sheet, and then the flexible sheet may be cut or cut such that the proximal and/or distal ends of the flexible sheet have protruding ears, resulting in the flexible sheet being formed into a shape substantially as shown in fig. 4-9; alternatively, the flexible sheet material may be cut or cut to provide the proximal and/or distal ends with protruding ears, the flexible sheet material formed into a shape generally as shown in FIGS. 4-9, and then the heater 22 and electrodes 23 disposed on the inner side of the flexible sheet material; (2) Turning and bending the ears outwards to form a first tab 27 and a second tab 28, and then curling the flexible sheet inwards to form the flexible sheet into a partial tubular shape to form the shape shown in 2; alternatively, the flexible sheet material is rolled inwards to form a partial tubular shape, and then the shape is formed as shown in fig. 2, and then the ears are turned outwards to form the first tab 27 and the second tab 28, so as to form the shape shown in fig. 3; (3) The first electrical connector 241 is electrically connected to the first tab 27 and the second electrical connector 242 is electrically connected to the second tab 28 by welding or the like.

In one embodiment, the first tab 27 is integrally formed with the tubular substrate 21; in one embodiment, the second tab 28 is integrally formed with the tubular base 21.

In one embodiment, referring to fig. 2, the cross-sectional profile of the tubular base 21 is circular, so that the first tab 27 integrally formed with the tubular base 21 has a certain radian in the circumferential direction, and the smaller the circumferential width of the first tab 27, the more easily the first tab is turned and bent, and in a specific embodiment, at least in order to facilitate the turning and bending of the first tab 27, the radian of the first tab may be not greater than pi/4. The second tab 28 may also have a radian less than or equal to pi/4 if it is also required to be bent upside down.

In an embodiment, referring to fig. 6 and 8, the first tabs 27 have at least two, and two adjacent first tabs 27 may be spaced apart from each other, neither close to, nor disconnected from each other, so that the first electrical connection members 241 electrically connected to the first tabs 27 may be distributed.

When two adjacent first tabs 27 can be arranged at a distance from each other: (1) In an embodiment, referring to fig. 6 and 8, two first electrodes 231 are electrically connected to the same heater 22 at the same time, and constitute a positive electrode and a negative electrode of the heater 22, and the heater 22 is divided into a left part and a right part by the two first electrodes in the circumferential direction, that is, the heater 22 is disposed on both left and right sides of any one first electrode 231 of the two first electrodes 231, the left part and the right part have the same working voltage due to the same positive electrode and negative electrode, and current flows in the circumferential direction in the left part and the right part, so when the left part and the right part can have the same circumferential length, the left part and the right part can have the same working resistance, and thus have the same heating efficiency. Of course, the left and right portions may have different circumferential lengths, and it is understood that the greater the length of the heater 22 between the two first electrodes 231 in the current flowing direction, such as the left or right portion, the greater the operating resistance of that portion.

In other embodiments, the first tabs 27 have at least two, two of the first tabs are respectively disposed at two opposite ends of the heater 22 after being circumferentially expanded, the current flows along the circumferential direction of the heater 22, so that when the heater 22 is disposed inside the tubular substrate 21 to form a tubular shape, the two first electrodes 231 corresponding to the two first tabs 27 are close to each other, and the heater 22 electrically connected to the two first electrodes 231 is disposed only on one side of the two first electrodes 231, so that the heater 22 between the two first electrodes 231 has a larger circumferential length and thus a larger working resistance, and thus has a higher heating efficiency.

In an embodiment, the heating module 2 further comprises a fixing member, or the aerosol-generating device further comprises a fixing member, for holding the first tab 27 stationary relative to the tubular substrate 21, preventing it from moving under the influence of the first electrical connector 241 or under shaking, thereby helping to prevent the first tab 27 from bending back and forth and breaking.

In one embodiment, as can be seen in fig. 3, the first tab 27 may be angularly open relative to the outer side of the tubular substrate 21 such that the first tab 27 does not abut the outer side of the tubular substrate 21. In other embodiments, the first tab 27 can be attached to the outer side of the tubular base body 21.

Fixing the first tab and the tubular substrate to enable the first tab to be connected

In one embodiment, as shown in fig. 4 and 5, there is one and only one heater 22 disposed on the inside of the tubular substrate 21, thereby providing a first tab 27, a positive electrode and a negative electrode, and a second tab 28. The positive electrode is for electrical connection with the positive output of the power supply component 3 by an electrical connection member, and the negative electrode is for electrical connection with the negative output of the power supply component 3 by another electrical connection member.

In the embodiment shown in fig. 4, a positive electrode and a negative electrode both extend along the circumferential direction of the tubular base 21, and a part of one electrode 23 is located at the proximal end of the tubular base 21, the rest is located on the first tab 27, a part of the other electrode 23 is located at the distal end of the tubular base 21, and the rest is located on the second tab 28 (of course, the other electrode is located entirely on the inner side of the tubular base 21 when the second tab 28 is not present), i.e., a positive electrode and a negative electrode are arranged up and down in the axial direction of the tubular base 21 and are electrically connected to the same heater 22, so that when the heater 22 is electrically heated, the current flows along the axial direction of the tubular base 21.

In the embodiment shown in fig. 5, one electrode 23 extends upward along the axial direction of the tubular base 21 and passes through the proximal end of the tubular base 21 to the first tab 27, and the other electrode 23 extends downward along the axial direction of the tubular base 21 and passes through the distal end of the tubular base 21 to the second tab 28 (of course, all of the electrodes are located on the inner side surface of the tubular base 21 when the second tab 28 is not present), that is, a positive electrode and a negative electrode are arranged left and right along the circumferential direction of the tubular base 21 and are electrically connected to the same heater 22, so that when the heater 22 is heated by electricity, the current flows along the circumferential direction of the tubular base 21.

In an embodiment, as shown in fig. 6-9, the heater 22 arranged on the inside of the tubular substrate 21 has a plurality of heaters 22 arranged at different locations on the inside of the tubular substrate 21, so that the aerosol-generating article 1 can be heated in sections or zones to meet different heating requirements.

In the embodiment shown in fig. 6, a positive electrode and a negative electrode are individually connected to each heater 22, and each heater 22 is individually powered by the positive electrode and the negative electrode electrically connected thereto, so that a plurality of heaters 22 are electrically connected to the power supply module 3 in parallel with each other. The plurality of heaters 22 may thus also be individually controlled by the power supply assembly 3 such that the plurality of heaters 22 may be supplied with different operating voltages or voltage pulses simultaneously, thereby effecting segmented or zoned heating of the aerosol-generating article 1.

In the embodiment shown in fig. 6, the heater 22 has a plurality of heaters, at least two of which are arranged up and down along the axial direction of the tubular substrate 21, and of the two heaters 22 arranged up and down along the axial direction, the heater 22 positioned above may electrically connect two first electrodes 231, one of the first electrodes 231 being a positive electrode for electrical connection with the positive output electrode of the power supply module 3 through a first electrical connection member 25, and the other first electrode 231 being a negative electrode for electrical connection with the negative output electrode of the power supply module 3 through another first electrical connection member 25; correspondingly, the lower heater 22 may be electrically connected to two second electrodes 232, wherein one second electrode 232 is a positive electrode for electrical connection with the positive output of the power module 3 via the second electrical connection 26, and the other second electrode 232 is a negative electrode for electrical connection with the negative output of the power module 3 via the other second electrical connection 26.

In the embodiment shown in fig. 7, in order to reduce the number of electrical connections, when there are a plurality of heaters 22, the second electrode 232 is electrically connected to one ends of the plurality of heaters 22 at the same time, thereby constituting a common electrode of the plurality of heaters 22, and the other ends of the plurality of heaters 22 are individually electrically connected to another electrode, which may be partially extended to the first electrode 231 of the first tab 27, or another second electrode 232. If the common electrode is a common negative electrode for electrically connecting with the negative output electrode of the power supply module 3, the other electrode is a positive electrode for electrically connecting with the positive output electrode of the power supply module 3, so that the plurality of heaters 22 are electrically connected with the power supply module 3 in parallel, and the power supply module 3 can individually control the operating voltages or voltage pulses applied to different heaters 22, thereby enabling different heaters 22 to have different heating efficiencies; similarly, if the common electrode is a common positive electrode for electrically connecting with the positive output electrode of the power supply module 3, the other electrode is a negative electrode for electrically connecting with the negative output electrode of the power supply module 3, so that the plurality of heaters 22 are electrically connected with the power supply module 3 in parallel, and each heater 22 obtains the same operating voltage or voltage pulse from the power supply module 3, and if different heaters 22 have different operating resistances, different heaters 22 may have different heating powers at the same operating voltage or voltage pulse.

In the embodiment shown in fig. 8, in order to reduce the number of electrical connections, when there are a plurality of heaters 22, the first electrode 231 is electrically connected to one end of the plurality of heaters 22 at the same time, thereby constituting a common electrode of the plurality of heaters 22, and the other end of the plurality of heaters 22 is individually electrically connected to another electrode, which may be another first electrode 231 partially extending to the first tab 27, or a second electrode 232. Similarly, the common electrode may be a common positive electrode, or may be a common negative electrode.

In the embodiment shown in fig. 9, in order to reduce the number of electrical connections, when there are multiple heaters 22, the first electrode 231 is electrically connected to one end of the multiple heaters 22 at the same time, thereby forming a first common electrode of the multiple heaters 22, and the second electrode 232 is electrically connected to the other end of the multiple heaters 22 at the same time, thereby forming a second common electrode of the multiple heaters 22, thereby enabling different heaters 22 to have the same operating voltage or voltage pulse, and if different heaters 22 have different operating resistances, then different heaters 22 have different heating powers at the same operating voltage, so that the heating module 2 can provide different heating powers to different positions of the aerosol-generating article 1, for example: the heating module 2 has a relatively high heating power at the distal region so that the aerosol-generating article 1 can be sufficiently baked to produce an aerosol; the proximal region of the heating module 2 has a lower heating power so that it can keep the proximal region of the aerosol-generating article 1 warm and pre-heat, thereby preventing the aerosol from cooling and condensing in the aerosol-generating article 1.

In one embodiment, the number of the first electrodes 231 corresponds to the number of the first tabs 27, and the first electrodes 231 are disposed one-to-one with the first tabs 27.

In one embodiment, the electrical connections are thermocouple wires, and the two electrical connections that electrically connect the same heater 22 are made of different materials, such as: the electric connector electrically connected with the anode electrode and the electric connector electrically connected with the cathode electrode are respectively prepared by two different materials in galvanic couple materials such as nickel, nickel-chromium alloy, nickel-silicon alloy, nickel-chromium-copper, constantan, iron-chromium alloy and the like. After the two electric connectors made of different materials are electrically connected with the heater 22, a thermocouple for detecting the temperature of the heater 22 can be formed.

In the heating module and the aerosol generating device, the accommodating cavity in the tubular base body is used for accommodating an aerosol generating product, the heater is arranged on the inner side surface of the tubular base body, the first tab is arranged on the tubular base body, part of at least one electrode electrically connected with the heater is arranged on the first tab, the first tab and the electrode on the first tab are turned outwards and bent, so that the electrode extending to the inner side surface of the first tab is arranged outwards, when the electrode turned outwards is electrically connected with the first electric connecting piece, the first electric connecting piece can be arranged on the periphery of the tubular base body, the aerosol generating product is not affected to be put into the accommodating cavity from the near end of the tubular base body, the aerosol generating product can be heated by the heater more directly, the heater is helped to heat the aerosol generating product more quickly, and the power consumption is saved.

And part of the electrode is arranged on the inner side surface of the tubular base body and partially extends to the inner side surface of the first lug, so that the process of arranging the heater and the electrode on the tubular base body can be simplified.

It should be noted that the description and drawings of the present application illustrate preferred embodiments of the present application, but are not limited to the embodiments described in the present application, and further, those skilled in the art can make modifications or changes according to the above description, and all such modifications and changes should fall within the scope of the claims appended to the present application.

Claims (18)

1. A heating module, comprising:

a tubular substrate having a receiving cavity formed therein for receiving an aerosol-generating article, the tubular substrate comprising a proximal end and a distal end, the aerosol-generating article entering the receiving cavity from the proximal end;

a heater disposed on an inner side of the tubular substrate for heating the aerosol-generating article to produce an aerosol;

the first tab is connected with the near end of the tubular base body and is arranged in a mode of being turned and bent outwards relative to the tubular base body;

a plurality of electrodes, one end of which is arranged on the inner side surface of the tubular base body and is electrically connected with the heater, wherein the other end of at least one electrode is arranged on the first electrode lug;

a first electrical connection electrically connected to the electrode disposed on the first tab.

2. The heating module of claim 1, further comprising: a second tab and a second electrical connector;

the second tab is connected with the distal end of the tubular substrate;

wherein the other end of at least one of the electrodes is arranged on the second tab;

the second electrical connection is electrically connected with the electrode arranged on the second pole ear.

3. The heating module of claim 2 wherein said tubular base and said first tab are integrally formed; or

The tubular base body and the second pole lug are integrally formed; or

The tubular base body, the first tab and the second tab are integrally formed.

4. The heating module of claim 3, wherein said tubular base, said first tab and said second tab are metal pieces having an insulating layer on an inside surface thereof;

both the heater and the electrode are disposed on the insulating layer; or

The heater is disposed on the insulating layer, and the electrode is disposed on a surface of the heater;

the electrode is disposed on the insulating layer, and the heater is disposed on a part of the electrode and on a surface of the insulating layer.

5. The heating module of claim 4, wherein the metal member has a thickness of 0.03-0.2mm, or 0.04-0.1mm, or 0.05-0.08mm.

6. The heating module of claim 4, wherein said insulating layer is a metal oxide insulating layer.

7. The heating module of claim 1, wherein said heater is a resistive film;

the thickness of the resistive film is between 5 and 20 mu m; and/or

The resistance value of the resistance film is between 0.5 and 3 omega; and/or

The resistance temperature coefficient of the resistance film is larger than 1600 ppm/DEG C.

8. The heating module of claim 1, wherein the electrode is an electrode film having a thickness of 5-20 μm; and/or

The resistance of the electrode is less than 0.1 omega.

9. The heating module of claim 1, wherein the heater is an infrared heating film; or alternatively

The heater is a resistance film; or alternatively

The heater is a flexible heating film.

10. The heating module of claim 1, wherein the plurality of electrodes comprises a positive electrode and a negative electrode;

the positive electrode and the negative electrode are arranged at two ends of the tubular base body in the axial direction, the heater is arranged between the positive electrode and the negative electrode, and the current of the heater flows along the axial direction of the tubular base body; or alternatively

The positive electrode and the negative electrode extend along the axial direction of the tubular matrix and are arranged along the circumferential direction of the tubular matrix, the heater is arranged between the positive electrode and the negative electrode, and the current of the heater flows along the circumferential direction of the tubular matrix.

11. The heating module according to claim 1, wherein the plurality of electrodes include a common positive electrode and a common negative electrode, each extending in the axial direction of the tubular substrate and arranged in the circumferential direction of the tubular substrate, and two of the heaters are disposed between the common positive electrode and the common negative electrode, and the current of the two heaters flows in the circumferential direction of the tubular substrate at the same time.

12. The heating module of claim 1, wherein the plurality of electrodes comprises a plurality of positive electrodes and at least one common negative electrode; or a plurality of negative electrodes and at least one common positive electrode; or a plurality of positive electrodes and a plurality of negative electrodes;

a plurality of independently controlled heaters are formed between the plurality of electrodes.

13. The heating module of claim 12 wherein a plurality of said heaters are arranged along the axial direction of said tubular substrate.

14. The heating module according to claim 1, wherein the tubular base body and the first tab are formed by cutting or cutting a same tubular body and then partially bending the same tubular body outwards; or

The tubular matrix and the first tab are made of the same flexible sheet material which is cut or cut, then is partially turned and bent outwards and is partially curled inwards.

15. The heating module of claim 1, wherein said electrodes have two;

the heaters are arranged on two opposite sides of each electrode; or

Each of the electrodes is disposed with the heater only on a single side.

16. The heating module of claim 1, wherein said first tab has at least two;

gaps are formed between every two adjacent first electrode lugs so as to be mutually spaced, and the heaters are arranged on two opposite sides of two electrodes electrically connected with the two first electrode lugs; or

Wherein two of the first tabs are disposed on opposite sides of the heater after the planar deployment.

17. An aerosol-generating device comprising a heating module according to any one of claims 1 to 16.

18. The aerosol-generating device of claim 17, wherein the aerosol-generating device or the heating module further comprises a securing member coupled to the first tab to hold the first tab stationary relative to the tubular substrate.

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