CN116509060A - Heater and aerosol generating device - Google Patents

Abstract

The present application relates to a heater and aerosol-generating device, comprising: a tubular body made of a flexible insulating material, the tubular body having a first surface and a second surface, the first surface being disposed adjacent to the aerosol-generating article; at least one heating belt is disposed on the first surface for heating the aerosol-generating article; the electrode corresponding to the heating belt is arranged on the second surface, and the heating belt is electrically connected with the electrode corresponding to the heating belt. The heating strips are arranged on the first surface of the tubular body, and the electrodes electrically connected with each heating strip are arranged on the second surface of the tubular body, so that the circuit distribution structure can be simplified, the volume of the heater can be reduced, and the manufacturing process can be simplified.

Description

Heater and mist generating device

technical field

The embodiments of the present application relate to the technical field of aerosol generation, in particular to heaters and aerosol generating devices.

Background technique

Existing aerosol generating devices usually include a heating element. Some aerosol generating devices extend the heating element into the interior of the smokable product and generate heat inside the smokable product, thereby volatilizing the smokable product to generate an aerosol. Some aerosol generating devices insert the inhalable product into the interior of the tubular heating element, so that the tubular heating element heats the inhalable product from the circumferential direction of the inhalable product, and then volatilizes the inhalable product to generate an aerosol.

The smokable product is usually long, and the heating element usually makes the whole smokable product heat at the same time. When the suction is stopped, the heating body continues to heat the smokable product, resulting in a lot of waste of the smokable product.

Contents of the invention

The embodiment of the present application provides a heater and an aerosol generating device. By arranging a plurality of heating belts distributed along the axial direction and spaced apart from each other, the aerosol generating product can be controlled in sections, so that it can be effectively heated when the suction is stopped. Reduce waste of aerosol generating products.

A heater provided in an embodiment of the present application is used to make an aerosol-generating product generate an aerosol, including:

using a tubular body of flexible insulating material, the tubular body having a first surface and a second surface, the first surface being disposed adjacent the aerosol-generating article;

At least one heating strip is disposed on the first surface for heating the aerosol-generating article; a corresponding electrode of the heating strip is disposed on the second surface, and the heating strip is electrically connected to the corresponding electrode. connect.

An aerosol generating device provided in an embodiment of the present application includes the heater described above.

An aerosol generating system provided in an embodiment of the present application includes the aerosol generating device and an aerosol generating product; the aerosol generating device includes a receiving area for receiving at least one part of the aerosol generating product partial;

In the receiving zone, the aerosol-generating article is disposed on the periphery of the heater and is disposed proximate to the first surface; or

In the receiving zone, the aerosol-generating article is disposed inside the heater and proximate to the first surface.

For the above heater and aerosol generating device, the heating belt is arranged on the first surface of the tubular body, and the electrodes electrically connected with each heating belt are arranged on the second surface of the tubular body, which not only facilitates the realization of each heating belt. Independent electrical control, and can simplify the circuit distribution structure, reduce the volume of the heater, and simplify the manufacturing process.

Description of drawings

One or more embodiments are exemplified by the pictures in the corresponding drawings, and these exemplifications do not constitute a limitation to the embodiments. Elements with the same reference numerals in the drawings represent similar elements. Unless otherwise stated, the drawings in the drawings are not limited to scale.

Fig. 1 is a schematic diagram of an aerosol generating device provided by an embodiment of the present application;

Fig. 2 is a schematic diagram of a heater provided by an embodiment of the present application;

Fig. 3 is a schematic diagram of the first surface of the tubular body provided by an embodiment of the present application after deployment;

Fig. 4 is a schematic diagram of the second surface of the tubular body provided by an embodiment of the present application after deployment;

Fig. 5 is a schematic diagram of a tubular body provided by an embodiment of the present application;

Fig. 6 is a schematic diagram of the first surface of the expanded tubular body provided by another embodiment of the present application;

Fig. 7 is a schematic diagram of the second surface of the expanded tubular body provided by another embodiment of the present application;

Fig. 8 is a schematic diagram of a tubular body provided by another embodiment of the present application;

Fig. 9 is a schematic diagram of the expanded tubular body provided by another embodiment of the present application;

Fig. 10 is a schematic diagram of a tubular body provided by another embodiment of the present application;

Fig. 11 is a schematic diagram of the expanded tubular body provided by another embodiment of the present application;

Fig. 12 is a schematic diagram of a tubular body provided by another embodiment of the present application;

Fig. 13 is a schematic diagram of an aerosol generating device provided by another embodiment of the present application;

Fig. 14 is a schematic diagram of the expanded tubular body provided by another embodiment of the present application;

Fig. 15 is a schematic diagram of the expanded tubular body provided by another embodiment of the present application;

Fig. 16 is a top view of a tubular body provided by another embodiment of the present application;

Fig. 17 is a schematic diagram of the expanded tubular body provided by another embodiment of the present application;

Fig. 18 is a schematic diagram of the expanded tubular body provided by another embodiment of the present application;

Fig. 19 is a schematic diagram of the expanded tubular body provided by another embodiment of the present application;

In the picture:

1A, aerosol generating product; 1B receiving cavity; B1, insertion port; 1C, power supply component; C1, battery cell; C2, circuit board; 1D, bracket;

1. heater; 11. tubular body; 12. heating belt; 121. first end; 122. second end; 13. rod core; 131. guide part; 132. base; 14. first conduction hole ; 15, the second via hole; 16, the third via hole; 17, the fourth via hole;

21. First electrode; 22. Second electrode; 221. Head end; 222. End; 223. First part; 224. Second part; 31. First lead wire; 32. Second lead wire; 321. First part ; 322, Part Two.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

The terms "first", "second" and "third" in this application are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity or order of the indicated technical features. All directional indications (such as up, down, left, right, front, back...) in the embodiments of the present application are only used to explain the relative positional relationship between the various components in a certain posture (as shown in the drawings) Or sports conditions, etc., if the specific posture changes, the directional indication also changes accordingly. Furthermore, the terms "include" and "have", as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but optionally also includes unlisted steps or units, or optionally further includes For other steps or units inherent in these processes, methods, products or apparatuses.

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 present application. The occurrences of this 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 understood explicitly and implicitly by those skilled in the art that the embodiments described herein can be combined with other embodiments.

It should be noted that when an element is referred to as being “fixed” to another element, it can be directly on the other element or there can also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element, or one or more intervening elements may also be present therebetween. The terms "vertical," "horizontal," "left," "right," and similar expressions are used herein for purposes of illustration only and are not intended to represent the only embodiments.

An embodiment of the present application provides an aerosol generating device, which can be used to heat an aerosol generating product, so that the aerosol generating product can volatilize an aerosol for inhalation. The aerosol can include Chinese herbal medicine, nicotine or tobacco spices and other flavor compounds. In the embodiment shown in FIG. 1 , the aerosol-generating product 1A is a smoking product (such as cigarettes, cigars, etc.), but it is not limited thereto.

In the embodiment shown in Figure 1, the aerosol generating device includes a receiving cavity 1B for receiving an aerosol generating product 1A and a heater 1 for heating the aerosol generating product 1A, and also includes a power supply assembly 1C, a power supply assembly 1C is used to supply energy for the heater 1 to work.

1 and 2, the receiving chamber 1B has an insertion port B1 through which an aerosol generating article 1A such as a cigarette is removably received in the receiving chamber 1B; at least a part of the heater 1 is in the receiving chamber 1B along the length direction, and generate heat through electromagnetic induction under a changing magnetic field, or heat through resistance when energized, or radiate infrared rays to the aerosol-generating product 1A when excited, and then make the aerosol-generating product 1A, such as a cigarette, heated and make the gas At least one component of the sol-forming product 1A volatilizes to form an aerosol for inhalation; the power supply assembly 1C includes a battery cell C1 and a circuit board C2, the battery cell C1 is a rechargeable DC battery that can output DC current, and the circuit board C2 is electrically charged. Connect the rechargeable cell C1 to control the output of the current, voltage or electric power of the cell C1. In other embodiments, the battery cell C1 may also be a disposable battery, which is not rechargeable or does not need to be charged. In other implementations, the power supply component 1C can be a wired power supply, and the wired power supply is directly connected to the mains through a plug to supply power to the aerosol generating device.

In a preferred embodiment, the DC power supply voltage provided by the cell C1 is in the range of about 2.5V to about 9.0V, and the amperage of the DC current provided by the cell C1 is in the range of about 2.5A to about 20A.

Further in an optional implementation, the aerosol-generating product 1A preferably uses a tobacco-containing material that releases volatile compounds from the matrix when heated; or it can also be a non-tobacco material that is suitable for electric heating and smoking after heating. The aerosol-generating product 1A preferably adopts a solid substrate, which may include one or more of powders, granules, shredded strips, strips or flakes of one or more of vanilla leaves, tobacco leaves, homogenized tobacco, and expanded tobacco; Alternatively, the solid matrix may contain additional tobacco or non-tobacco volatile flavor compounds to be released when the matrix is heated. In some alternative implementations, the aerosol-generating article is prepared in the shape of a conventional cigarette or cigar.

In the embodiment shown in FIGS. 3-4 , the heater 1 includes a tubular body 11 and a heating belt 12 .

The tubular body 11 is made of insulating material (the insulating material that makes the tubular body 11 can be rigid or flexible), or its surface has an insulating layer, and the heating band 12 is arranged on the insulating layer and is insulated from the tubular body 11 connect. The heating belt 12 can transmit energy to the outside, including conducting heat, radiating heat and/or radiating infrared rays, as long as the energy it transmits can make the aerosol generating product 1A heat. And the heat conducted or radiated may come from the heat generated by the heating belt 12 through resistance heating, or from the heat generated by the heating belt 12 through the formation of eddy current and hysteresis in a changing magnetic field.

Please refer to Figures 17 and 18, there is only one heating belt 12, which occupies almost all of one of the surfaces of the tubular body 11 after deployment, and the electrodes are arranged on the other surface of the tubular body 11, and the electrodes can be opened on the wall of the tubular body 11. The first conduction hole 14 and the second conduction hole 15 are electrically connected to the heating belt 12, and the first conduction hole 14 and the second conduction hole 15 can be arranged at opposite ends of the tubular body 11 in the axial direction, as shown in FIG. 18; the electrodes can be electrically connected to the heating belt 12 through the third through hole 16 and the fourth through hole 17 provided on the wall of the tubular body 11, and the third through hole 16 and the fourth through hole 17 can be provided At opposite ends of the tubular body 11 in the axial direction, as shown in FIG. 17 .

Referring to Figures 3 and 5, there are multiple heating belts 12, and any two heating belts 12 are spaced apart from each other, and the spacing includes no direct contact with each other, or isolation, separation, and discreteness. In some embodiments, referring to FIG. 14 , each heating band 12 can be in the shape of strips or bands distributed along the axial direction, and a plurality of heating bands 12 are arranged along the circumference of the tubular body, roughly combined into a discontinuous ring. , in the embodiment shown in Figure 19, there are two heating belts 12, the common negative electrode 21 is arranged between the two heating belts 12, and is electrically connected with the two heating belts 12, as the common negative electrode of the two heating belts, for It is electrically connected with the first lead wire 31, and the two electrodes 22 are arranged at the opposite ends of the metal material, and are symmetrical to the common negative electrode 21. ) can be overlapped to form an electrode for electrical connection with the second lead 32. In the embodiment shown in FIG. In some other embodiments, as shown in FIGS. 3 and 5 , each heating band 12 is an annular shape distributed along the circumferential direction, and a plurality of heating bands 12 are arranged sequentially along the axial direction of the tubular body 11 to form the surface of the tubular body 11. A plurality of rings spaced apart from each other in the axial direction and isolated from each other.

In a preferred implementation, at least one heating belt 12 contains grade 430 stainless steel (SS430), or contains grade 420 stainless steel (SS420), or contains iron-nickel alloy materials (such as permalloy) and the like can be varied A magnetically sensitive material that generates heat in a magnetic field, so that the heating belt can generate heat in a changing magnetic field, and in the changing magnetic field, self-heating due to the generation of eddy currents and hysteresis, and conduct and/or radiate heat to the aerosol generating product 1A , to heat the aerosol-generating article 1A. Correspondingly, the aerosol generating device also includes a magnetic field generator, such as an induction coil, which is used to generate a changing magnetic field under an alternating current, and the circuit board C2 is connected to the electric core C1 and the induction coil, and the direct current output by the electric core C1 can be The flow is converted into alternating current, preferably the frequency of the alternating current is between 80KHz-400KHz; more specifically, the frequency may be in the range of about 200KHz-300KHz. In order to prevent the heating of the tubular body 11 in the changing magnetic field, the tubular body 11 can be made of non-metallic materials, or metals that cannot generate heat in the changing magnetic field such as aluminum, aluminum alloy, magnesium alloy, copper alloy, titanium alloy, zinc alloy And made of austenitic stainless steel. The heating belt 12 in this embodiment can be a metal ring or an alloy ring or a coating, and is arranged on the surface of the tubular body 11 by sheathing or depositing.

In a preferred implementation, at least one heating belt 12 has an infrared coating, which can be excited by the DC current provided by the cell C1 and then radiate infrared rays to heat at least a part of the aerosol generating product 1A. The infrared coating is preferably composed of oxides of at least one metal element such as Mg, Al, Ti, Zr, Mn, Fe, Co, Ni, Cu, Cr, etc. These metal oxides will radiate more than one when power is supplied and have a heating effect The far-infrared rays; the preparation method can be obtained by spraying the above metal oxides on the surface of the substrate 31 by plasma spraying and then curing. When the infrared coating emits infrared rays to the aerosol-generating product 1A, the aerosol-generating product 1A will generate heat, and when the heating temperature reaches a preset temperature, an aerosol can be generated. In a specific embodiment, the infrared coating is arranged on the casting sheet, and then made into a tubular shape together with the casting sheet to form a tubular body 11 with a heating belt 12, and the casting sheet is selected as the carrier or support of the infrared coating, The thickness of the tubular body 11 can be made smaller, thereby reducing heat loss and improving heating efficiency, compared with quartz tubes (whose wall thickness is about 0.8mm) and transparent ceramic tubes (whose minimum wall thickness is also greater than 0.4mm) As the carrier or support of the infrared coating, the cast sheet as the carrier or support of the infrared coating can make the thickness of the tubular body less than or equal to 0.4mm, and even the wall thickness of the tubular body can be less than 0.2mm, so that the heating The near direct contact of the strip 12 with the aerosol-generating article 1A helps to further increase the heating efficiency.

In the embodiment shown in Figures 3-5, the heating belt 12 is made of conductive materials, such as containing iron-chromium-aluminum alloys, nickel-chromium alloys, nickel-iron alloys, platinum, tungsten, silver and other resistive conductive materials, etc., and then For example, the heating belt 12 also includes a resistive metal foil or sheet with a thickness of 50 microns to 100 microns. And in some implementations, the heating belt 12 is combined with the tubular body 11 by winding or prefabricating. Each heating belt 12 is a non-closed ring, and one end of each heating belt 12 extending along the circumferential direction of the tubular body 11 is a first end 121 for electrically connecting with the first electrode 21, along the circumferential direction of the tubular body 11 The other end of the extension is the second end 122, which is used for electrical connection with the second electrode 22, and the circuit board C2 connects the first electrode 21 and the second electrode 22, thereby providing power to the heating belt 12 through the first electrode 21 and the second electrode 22 , thus causing the heating belt 12 to generate heat through resistance to deliver heat to the aerosol generating product 1A, or to excite the infrared coating on the heating belt 12 to emit infrared rays. The first electrode 21 and the second electrode 22 are arranged at the two ends of the ring of the heating belt 12, that is, the first end 121 and the second end 122, rather than being arranged at the two ends of the heating belt 12 in the axial direction (the heating belt 12 axis The two upward ends are respectively the third end and the fourth end), because the circumferential extension distance between the first end 121 and the second end 122 is greater than the axial extension distance between the third end and the fourth end, Therefore, the conduction path between the first electrode 21 and the second electrode 22 can be made the longest, which helps to increase the effective heating resistance of the heating belt 12 and improve the heating efficiency. The thickness of the heating belt 12 is lower than 0.05mm, preferably 0.005-0.02mm. In some embodiments, the mass fraction of silver in the heating belt 12 is greater than 60%. In a more preferred embodiment, the silver in the heating belt 12 The mass fraction is greater than 80%. In another embodiment, please refer to FIG. 15, the first electrode 21 is connected to the third end of the heating belt 12, the second electrode 22 is connected to the fourth end of the heating belt 12, the third end and the fourth end are At the opposite ends of the heating band 12 in the axial direction, the resistance of the current between the third end and the fourth end of the heating band 12 can be improved by improving the material of the heating band 12, such as reducing the percentage of silver in the first paste Content etc.

Please refer to Fig. 3, heating belt 12 is arranged on the first surface of tubular body 11, and electrode (comprising first electrode 21 and second electrode 22) is arranged on the second surface of tubular body 11, first surface and second surface It can be the inner surface and the outer surface of the tubular body 11. By setting in this way, it can be applied to the requirement of separate electric control and temperature control for each heating belt 12 when there are a large number of heating belts 12, and it is helpful In order to make the electrode circuit distribution simple.

Please refer to FIG. 4 , the first electrode 21 located on the second surface extends along the axial direction of the tubular body 11 and forms a strip shape, which can constitute a common negative electrode. The use of the common negative electrode can effectively reduce the number of pins and simplify the circuit structure. Each heating belt 12 is connected to a second electrode 22 separately, and the second electrode 22 can be used as a positive electrode, so that each heating belt 12 can be subjected to independent electrical control, for example, by making different heating belts 12 generate heat at different times, Or make different heating belts 12 have different heating power at the same time, or make some heating belts 12 have the same heating power at the same time. In order to reduce the path loss, the first electrode 21 and the second electrode 22 can be made of materials with high conductivity and low resistivity, such as gold, silver, copper and so on.

3 and 5, the first electrode 21 is connected with a first lead 31, and each second electrode 22 is connected with a second lead 32, the first lead 31 and the second lead 32 can be common leads, such as It is a copper wire, and the cross-section of the lead wire can be circular, square or rectangular, etc. The function of the lead wire is mainly to electrically connect the power supply component C and the electrodes, so that the power supply component C can supply energy for the heating belt 12 to the aerosol generating product. The quantity of the second lead wire 32 is consistent with the quantity of the heating belt 12, wherein, the quantity of the heating belt 12 can be 1-15; The resulting product 1A can be sucked by 10 mouths, and the number of heating belts 12 can be 10; when different mouths are sucked, different heating belts 12 play the main role of heating, or different time periods are played by different heating belts 12. The main heating effect, the remaining heating belts do not generate heat or only perform low-temperature heating, so as to preheat or keep warm the aerosol-generating product 1A, so that when the suction is stopped, the aerosol-generating product 1A can continue with only a local high temperature The aerosol is generated, and the remaining part does not generate aerosol, so that the waste rate of the aerosol generating product 1A can be reduced. In order to achieve energy saving, the base material of the tubular body 11 can be made of materials with large heat capacity such as ceramics, so when at least one heating belt 12 heats up through resistance, the tubular body 11 can absorb, transfer and store excess heat, and then It is possible to preheat other regions of the aerosol-generating product 1A (regions not corresponding to the heating belt 12), and when the heating belt 12 stops delivering energy and turns to other heating belts to generate heat, the aerosol-generating product can be quickly made The new heated zone on the 1A heats up to rapidly generate aerosols, improving the user's vaping experience while reducing energy consumption.

In the embodiment shown in Figures 3-5, the tubular body 11 is curled and formed by the cast sheet, and the heating belt 12, the first electrode 21 and the second electrode 22 can be arranged on the stream before the cast sheet is curled into the tubular body 11. extended wafer to simplify the process. Before the casting sheet is curled into a tubular body 11, the heating belt 12 can be a belt-like structure extending along the transverse direction of the casting sheet, including a straight belt-like structure, an undulating wave-shaped belt-like structure in the axial direction, and a serpentine belt-like structure in the transverse direction. A belt-shaped structure that is folded back, etc., is preferably a linear belt-shaped structure. After the casting sheet is curled into a tubular body 11 along its transverse direction, the heating belt 12 forms an open loop. The heating belt 12 on the tubular body 11 has a first end 121 and a second end 122 along the circumferential direction of the tubular body 11, the first end 121 and the second end 122 are free ends, and the first end 121 is used for connecting with the first electrode 21, and the second end 122 is used to electrically connect with the corresponding second electrode 22. Because the development distance between the first end 121 and the second end 122 is greater than the distance between the third end and the fourth end of the heating belt 12 in the axial direction, the first end 121 and the second end 122 are used as the electrodes Compared with the third end and the fourth end of the heating belt 12 in the axial direction as the end electrically connected to the electrode, the electrically connected end can have a larger resistance, which helps to improve the heating efficiency of each heating belt 12 .

Since the first surface and the second surface are arranged opposite to each other, they are the inner and outer surfaces of the tubular body 11, and the tubular body 11 is made of insulating material, in order to facilitate the electrical connection of the first electrode 21, the second electrode 22 and the heating belt 12 Holes can be opened on the tubular body 11 for the first electrode 21 and the second electrode 22 to pass through, and then to be electrically connected to the first end 121 and the second end 122 of the heating belt 12 .

3 and 5, the heater 1 has a first through hole 14 and a second through hole 15, the first through hole 14 runs through the first end 121 of the heating belt 12 and the tubular body 11, the second The material of an electrode 21 or the first electrode 21 passes through the first via hole 14 or fills the first via hole 14 and then is electrically connected with the first end 121; the second via hole 15 runs through the second end of the heating belt 12 The material of the end 122 and the tubular body 11 , the second electrode 22 or the second electrode 22 passes through the second via hole 15 or fills the second via hole 15 to be electrically connected to the second end 122 . In other embodiments, referring to FIGS. 6-8 , it is also possible that the first via hole 14 runs through the tubular body 11 and the first electrode 21 , and the first end 121 of the heating belt 12 is made of the material or the first end 121 passes through. The first via hole 14 or fill the first via hole 14 and be electrically connected with the first electrode 21; The second end 122 of the second via hole 15 passes through or fills the second via hole 15 to be electrically connected to the corresponding second electrode 22 .

Please refer to Fig. 3 and 7, the quantity of the first conduction hole 14 and the second conduction hole 15 is equal, and is consistent with the quantity of the heating band 12, and the first conduction hole 14 and the second conduction hole 15 are all compatible with heating. The belts 12 are provided in one-to-one correspondence. In one embodiment, as shown in Figures 3 and 7, there is only one first electrode 21, a plurality of first through holes 14 are distributed in a row along the axial direction of the tubular body 11, and a plurality of second through holes 15 are arranged along the tubular body 11. The axial distribution of the body 11 is another row, and the two rows can be parallel to each other. In another embodiment as shown in FIG. 11 , there are two first electrodes 21 that are independent of each other, distributed at opposite ends of the casting sheet, and arranged in an axial direction, and electrically connected to different radiation charges. The schematic diagram of the first surface of the expanded tubular body 11 involved in the embodiment may only have one more third via hole 16 than the schematic diagram of the first surface of the expanded tubular body 11 shown in FIG. 3 , so in combination with FIG. 3 , In the embodiment shown in FIG. 11, part of the first through holes 14 and part of the second through holes 15 are distributed in a row along the axial direction of the tubular body 11, and the rest of the first through holes 14 and the rest of the second through holes 15 They are distributed in another row along the axial direction of the tubular body 11 . In other embodiments, there may be three or more mutually independent first electrodes 21 , and the principle of distribution is similar to the embodiment shown in FIG. 11 , which will not be repeated here.

Referring to FIGS. 3-5 , the heater 1 also has a third via hole 16 and a fourth via hole 17 , the third via hole 13 is set apart from the heating belt 12 and runs through the tubular body 11 , and is covered by the first electrode 21 Or the material of the first electrode 21 passes through or fills, so that the first electrode 21 or the material of the first electrode 21 is exposed from the first surface through the third via hole 16, and the fourth via hole 17 is staggered from the heating zone 12 is set and runs through the tubular body 11, and is penetrated or filled by the second electrode 22 or the material made of the second electrode 22, so that the second electrode 22 or the material made of the second electrode 22 passes through the fourth via hole 17 from The first surface is revealed.

In the embodiment shown in Figures 3 and 4, the number of the fourth via holes 17 is consistent with the number of the heating belts 12, and is provided in one-to-one correspondence with the second electrodes 22, because there is only one first electrode 21, That is to say, there is one common negative pole, and only one third via hole 16 is provided corresponding to the first electrode 21. The third via hole 16 and a plurality of fourth via holes 17 can be distributed along the circumferential direction of the tubular body on the first electrode. on the same row on the surface. In the embodiment shown in FIG. 11 , since there are two first electrodes 21 , that is, there are two common negative electrodes, correspondingly, there are two third via holes 16 . It can be understood that the number of the third through holes 16 is the same as the number of the first electrodes 21 as the common negative electrode.

Referring to FIGS. 6-8 , the heater 1 does not have the third via hole 16 and the fourth via hole 17 mentioned above, and the opposite ends of each second electrode 22 are a head end 221 and an end 222 respectively, and the head end 221 is covered by The corresponding second conduction hole 15 penetrates through, so that under the action of the corresponding second conduction hole 15, it is electrically connected with the corresponding heating belt 12, and the end is intact, and can still be arranged on the tubular body 11 for connecting with the lead wire electrical connection. The number of places on the first electrode 21 that are penetrated by the first via holes 14 is consistent with the number of the heating strips 12 , and the places that are not penetrated on the first electrode 21 are used for electrical connection with another lead wire.

In a further embodiment, the first electrode 21 is electrically connected to the first lead 31, so as to be electrically connected to the circuit board C2 through the first lead 31, and the second electrode 22 is electrically connected to the second lead 32, so as to be electrically connected to the circuit board C2 through the second lead 32. Connect to board C2 so that it is controlled by board C2.

In the embodiment shown in Figures 3-5, the connections between the first lead wire 31 and the second lead wire 32 and the tubular body 11 are both arranged on the first surface, and the first lead wire 31 is connected to the third through hole 16. The first electrode 21 exposed on the first surface through the third via hole 16 is welded, and there are multiple second leads 32, which are set in one-to-one correspondence with the fourth via hole 17, and each second lead 32 is on the corresponding first electrode 21. The four through holes 17 are welded to the second electrode 22 exposed on the first surface through the fourth through holes 17 . Of course, it is not excluded that some or all of the fourth via holes 17 communicate with each other to form a common via hole with a larger area.

In the embodiment shown in Figures 6-8, the connections between the first lead wire 31 and the second lead wire 32 and the tubular body 11 are both arranged on the second surface, and the first lead wire 31 is directly welded to the first electrode 21, or Welded with the first end 121 of the heating tape 12 exposed on the first electrode 21 through the first via hole 14, the second lead wire 32 has a plurality of wires, which are set in one-to-one correspondence with the second electrode 22, and each second lead wire 32 welded at the end of the corresponding second electrode.

When preparing the heater, please refer to Figure 3-5, (1) Obtain the casting sheet. The casting sheet is made of ceramics, such as zirconia. The surface and the second surface have a larger plane area, and the casting sheet can have a thickness of about 0.2 to 1.0mm; (3) coating the first slurry on the first surface to form a strip of slurry strips spaced apart from each other, The slurry belt can be straight or wavy. The first slurry is a high-resistance slurry containing iron-chromium-aluminum alloy, nickel-chromium alloy, nickel-iron alloy, platinum, tungsten, silver and other metal elements. With high heating efficiency, the first slurry can be coated on the insulating layer by printing, and can also be placed on the first surface by chemical deposition, physical deposition, spraying, ion sputtering or ion implantation, etc., forming A heating tape capable of generating heat when energized, but not limited thereto; in some embodiments, the thickness of the slurry tape can be 50 microns to 100 microns, but not limited thereto, and in other embodiments, different The slurry belts can have different thicknesses, so that heating belts 12 of different thicknesses can be formed, or there are multiple sets of slurry belts, each set of slurry belts has at least one slurry belt, and different groups of slurry belts have different thicknesses ; In other embodiments, different slurry bands have different slurry components, thereby having different resistances; in some embodiments, the resistance of the heating band 12 formed by the slurry bands is about 0.5 to 1.5 Ω; in some embodiments, the first slurry is a mixed slurry of pure silver and silicon oxide; (4) opening holes on the cast sheet to form the first via hole 14, the second via hole 15, the third via hole Conducting hole 16 and the 4th conducting hole 17, the first conducting hole 14 runs through one end of the casting sheet and the slurry band, the second conducting hole 15 runs through the other end of the casting sheet and the slurry band, the third conducting hole Through hole 16 and the 4th via hole 17 avoid slurry belt to run through casting sheet; (5) coat second slurry on the second surface, the second slurry has lower resistivity, such as silver, thereby Form the first electrode 21 and a plurality of second electrodes 22 on the second surface, and the second paste can be arranged on the second surface by printing, or by chemical deposition, physical deposition, ion sputtering or ion implantation, etc. Set on the second surface, but not limited thereto; when setting the second slurry, the second slurry fills the first via hole 14, the second via hole 15, the third via hole 16 and the fourth via hole The through hole 17 ensures that the first electrode 21 and the second electrode 22 are electrically connected to the heating belt 12. Preferably, the third via hole 16 and the fourth via hole 17 are filled with the second slurry to facilitate connection with the first lead wire 31 And the second lead wire 32 welds and guarantees welding quality; In some embodiments, the thickness of the first electrode and the second electrode is greater than the thickness of the slurry band (heating belt 12), and the thickness of the first electrode and the second electrode can be greater than the thickness of the slurry The thickness of the material band (heating belt 12) is 3 microns to 25 microns, for example, 10 microns to 20 microns; in some embodiments, the second paste is a mixed paste of pure silver and silicon oxide, but the silver content The silver content of the first slurry is different; in some embodiments, after the first slurry and the second slurry are set, they can be aligned for high-temperature oxidation treatment, so that the first slurry and the second slurry can be The surface of the electrode formed by the slurry forms an insulating layer; (5) the casting sheet is curled into a tubular form tubular body 11, and the slurry band is curled thereupon to form a plurality of heating bands 12 distributed along the axial direction of the tubular body 11, each The heating bands 12 all extend along the circumferential direction of the tubular body 11, and when the heater 1 is a central heater for inserting into the interior of the aerosol generating product 1A, the first surface is set outward, constituting the outer surface of the tubular body 11 , so that the heating belt 12 faces and is closer to the aerosol generating product 1A, and when the heater 1 is a circumferential heater for being arranged around the periphery of the aerosol generating product 1A, the first surface is set inward, forming The inner surface of the tubular body 11, so that the heating belt 12 faces and is closer to the aerosol generating product 1A; (6) the first lead wire 31 is welded to the first electrode 21 exposed on the first surface through the third via hole 16, The second lead 32 is welded to each second electrode 22 exposed on the first surface through the fourth via hole 17; (7) surface treatment is carried out on the first surface, including surface insulation treatment, surface anti-sticking treatment and/or Or by performing surface smoothing and flattening treatment, etc., the heater may have an outer diameter of about 2-6 mm.

When preparing the heater shown in Figures 6-8, the differences from the above-mentioned preparation method are mainly reflected in: 1. No need to open the third via hole 16 and the fourth via hole 17 on the casting sheet; 2. 1. The first via hole 14 and the second via hole 14 penetrate the first electrode 21 and the second electrode 22 respectively, but do not penetrate the heating belt 12; 3. Firstly, the first electrode 21 and the second electrode 22 are arranged on the second surface , and then open the first through hole 14 and the second through hole 15, and then set the heating belt 12 on the first surface, so that the slurry or material of the heating belt 12 or the heating belt 12, etc., directly pass through the first The via holes 14 and the second via holes 15 are arranged on the corresponding electrodes, so that the heating belt 12 is electrically connected to the corresponding electrodes through the first via holes 14 and the second via holes 15 . In other embodiments, a preparation method is also provided, the heater prepared by this method is slightly different from the heater shown in Fig. 3-5 and Fig. The second via hole 15, the third via hole 16 and the fourth via hole 17, wherein the first via hole 14 and the second via hole 15 allow the heating tape 12 to pass through or be filled to be electrically connected to the electrodes , the third via hole 16 and the fourth via hole 17 are passed through or filled by the electrodes to be electrically connected with the first lead wire 31 and the second lead wire 32, so that the first lead wire 31 and the second lead wire 32 are connected to the tubular body 11 The electrical connection points are located on the first surface.

In other embodiments, the preparation of the heater 1 can also be: (1) obtaining a tubular insulating object as the tubular body 11, the tubular body 11 is a closed ring, and there is no obvious gap on its side wall; (2) Holes are opened on the side wall of the tubular body 11 for the pins of the heating band 12 or the pins of the electrodes to pass through; (3) the heating band 12 is made into a non-closed metal ring or a metal band or an alloy ring or an alloy band, Sleeved on the first surface of the tubular body 11 or wound on the first surface of the tubular body 11 and fixed, or high The resistance paste is arranged on the strip-shaped casting sheet by means of thick film printing, physical deposition, chemical deposition, spraying, ion sputtering or ion implantation, and then the casting sheet is wound on the first surface of the tubular body 11 and fix it; (4) make the electrode into metal wire or metal strip or alloy wire or alloy strip, and then make the electrode enter the inside of the tubular body 11, or pass metal paste with low resistivity such as gold, silver or copper through Thick-film printing, physical deposition, chemical deposition, spray coating, ion sputtering or ion implantation are arranged on the strip-shaped casting sheet, and then the casting sheet is entered into the inside of the tubular body 11 and fixed; (5) heating the belt The pins of 12 are electrically connected to the corresponding electrodes through the corresponding openings, or one end of the electrodes is electrically connected to the corresponding heating belt 12 through the corresponding openings, and the other end of the electrodes stretches out of the tubular body 11 to connect with the lead wires. electrical connection.

In other embodiments, the preparation of the heater 1 can also be: (1) obtaining a tubular insulating object as a tubular body, the tubular body is a closed ring, and there is no obvious gap on its side wall; (2) Holes are opened on the side wall of 11 for the pins of heating band 12 or the pins of electrodes to pass through; (3) heating band 12 is made into non-closed metal ring or metal band or alloy ring or alloy band, or High-resistance pastes containing iron-chromium-aluminum alloys, nickel-chromium alloys, nickel-iron alloys, platinum, tungsten, silver and other metal elements are placed on the On the strip-shaped casting sheet, one heating tape 12 can be prepared on one casting sheet, and a plurality of heating tapes 12 can be prepared on one casting sheet; (4) each heating tape 12 is electrically connected with the corresponding lead wire: (5) The heating belt 12 in the form of a non-closed metal ring or metal band or alloy ring or alloy band is sleeved on the first surface of the tubular body 11 or wound on the first surface of the tubular body 11 and fixed, and the corresponding The lead wire passes through the opening and enters the inside of the tubular body 11, and then the lead wire passes through the inside of the tubular body 11 to be electrically connected to the circuit board C2, or the heating tape 12 prepared on the casting sheet is wrapped around or sleeved on the tubular body On the first surface of the body 11, the corresponding leads pass through the openings and enter the interior of the tubular body 11, and then the leads pass through the interior of the tubular body 11 to electrically connect with the circuit board C2. In other implementations, the heating belt 12 can also be arranged directly on the first surface of the tubular body 11 by means of thick film printing, physical deposition, chemical deposition, spraying, ion sputtering or ion implantation.

In an optional embodiment, the tubular body 11 may have a multi-layer structure, including at least a first tubular body and a second tubular body located inside the first tubular body. A plurality of heating belts 12 distributed in the axial direction of the tubular body 11 has a plurality of second electrodes 22 connected one-to-one with the heating belts 12 on the other surface, and the other surface also has a first electrode 22 connecting all the heating belts 12 . An electrode 21, the difference between the second tubular body and the first tubular body may be mainly reflected in the size, so that the first tubular body can be sleeved on the outside of the second tubular body.

To prepare such a multi-layer tubular body, the cast sheet can be folded (including folded left and right or up and down, or partially folded along a certain direction), and then curled into a tubular shape, so that the tubular body 11 has at least two layers. It can be understood that if it is folded once, a two-layer tubular body 11 structure is formed, that is, the first tubular body and the second tubular body located inside the first tubular body are formed. If it is folded multiple times, more layers of tubular body will be formed. body. Of course, before the casting sheet is curled into a tube shape, the heating belt and the electrodes have been arranged on the casting sheet.

Alternatively, at least two casting sheets arranged with heating belts and electrodes are stacked on each other first, and then rolled together into a tube shape so that the tube-shaped body 11 has at least a two-layer structure.

Or, firstly make the first cast sheet that is arranged with heating belt and electrode roll into tubular shape (constitute the first layer of tube), then make another casting sheet that is arranged with heating belt and electrode along the side wall outer surface of first layer of tube It is curled into a tubular shape to form a second layer of tubes, thereby forming a double-layered tubular body, and by analogy, more layers of tubular body 11 can be formed.

In another optional embodiment, referring to Figs. 9 and 10, the tubular body 11 may have a multi-layer structure, and during manufacture, the heating belt 12, the first electrode 21, and the second electrode 22 are all arranged on the casting sheet. On the same surface, but one side of the heating belt 12 is only provided with the first electrode 21, and the other side is only provided with the second electrode 22, such as: the heating belt 12 and the first electrode 21 are arranged on the left part of the casting sheet, The second electrode 22 is provided on the right partial area of the same surface of the casting sheet. The first electrode 21 extends along the axial direction of the tubular body 11, and is electrically connected to the first ends 121 of all the heating belts 12, and the second end 122 of each heating belt 12 is electrically connected to the corresponding second electrode 22; then Starting from one end of the casting sheet, the casting sheet is rolled up like a scroll, so that the heating belt 12 and the second electrode 122 are arranged back to back. If the heater 1 is a central heater 1 for inserting into the inside of the aerosol generating product 1A, Then the casting sheet after curling makes the heating belt 12 face outwards and is located on the outer surface of the tubular body 11, and the outer surface forms the first surface of the tubular body 11, while the second electrode 22 faces inward and is located on the inner surface of the tubular body 11. , the inner surface forms the second surface of the tubular body 11. In the embodiment shown in FIG. 10, the first electrode 21 can also be arranged outward; Towards the heater 1, the cast sheet after crimping makes the heating belt 12 face inwards and is located on the inner surface of the tubular body 11, at this time, the inner surface forms the first surface of the tubular body 11, while the second electrode 22 faces outwards, Located on the outer surface of the tubular body 11 , this outer surface then forms the second surface of the tubular body 11 ; ie, the heating strip 12 is preferentially brought closer to the aerosol-generating article 1A than the second electrode 22 . Of course, it is not excluded that in other embodiments, the folded heating strip 12 and the second electrode 22 face each other, but it is still preferred that in the tubular body 11, the heating strip 12 is closer to the aerosol-generating article 1A than the second electrode 22 . In the embodiment shown in FIGS. 9 and 10 , of the two-layer tubular body 11 , only one layer is provided with the heating strip 12 , and the other layer is mainly provided with the second electrode 22 .

In another optional embodiment, referring to FIG. 11 , the tubular body 11 may have a multilayer structure, and during preparation, the heating belt 12, the first electrode 21, and the second electrode 22 are all arranged on the same surface of the casting sheet. , but the opposite sides of the heating belt 12 are provided with both the first electrode 21 and the second electrode 22, such as: the radiation belt is arranged in the middle area of the casting sheet, and a plurality of radiation belts located in the upper end area of the casting sheet The left end of the belt 12 is electrically connected to the second electrode 22, and the right end is electrically connected to the first electrode 11, or the right end is connected to each other and then electrically connected to the first electrode 21; It is electrically connected to the second electrode 22 , and the left end is electrically connected to the first electrode 11 , or the left end is connected to each other and then electrically connected to the first electrode 21 . Fold the left end area and the right end area of the casting sheet along the direction away from the radiation belt 12, make the left end and the right end of the casting sheet contact after folding or make the left end and the right end of the casting sheet approach each other after folding, and then curl The folded casting sheet is formed into a tubular shape to form a tubular body 11, and the surface of the heating belt 12 faces outward or inward, so that the heating belt 12 is closer to the aerosol generating product 1A than the electrode. In the embodiment shown in FIG. 11 , in the two-layer tubular body 11 , only one layer is provided with the heating belt 12 , and the other layer is mainly provided with the first electrode 21 and the second electrode 22 .

In some embodiments, the tubular body 11 can have multiple layers, and each layer of the tubular body 11 has a plurality of heating bands 12 distributed along the axial direction, and each heating band 12 can extend along the circumferential direction of the layer, adjacent to each other. The heating bands 12 on the two tubular bodies 11 are arranged in one-to-one correspondence, so that in the radial direction, the heating bands 12 at the same axial height overlap each other, thereby improving the heating efficiency of each heating zone (the area corresponding to the heating band 12 ). But it is not limited thereto. In other embodiments, the heating strips 12 on two adjacent layers of the tubular body 11 can be arranged in a misaligned position, not overlapping or superimposing at all, or only partially overlapping or superimposing.

In some embodiments, as shown in Figures 3, 5 and 6, 8, the spacing between any two adjacent heating belts 12 can be the same, that is, the heating belts 12 are uniformly arranged on the first surface along the axial direction of the tubular body 11. superior. In some embodiments, reference may be made to FIG. 12 , wherein the spacing between two adjacent heating belts 12 may be different from the spacing between other two adjacent heating belts 12, that is, the heating belts 12 are not aligned along the axial direction of the tubular body 11. Evenly on the first surface, there are many ways of uneven distribution, for example, the distance between two adjacent heating belts 12 becomes smaller along the axial direction, or the distance between two adjacent heating belts 12 increases along the axial direction. The larger the distance between them, or the smallest distance between the heating belts 12 in the middle area, etc., they will not be listed here. The uniformity and non-uniformity of the distribution of the heating belt 12 are all to meet various temperature control requirements in line with the aerosol generated by the aerosol-generating product and a certain suction experience of the user.

In some embodiments, as shown in Figures 3, 5 and 6, 8, between two adjacent heating belts 12, the axial distances between the two heating belts 12 are equal, that is, the two heating belts 12 are mutually Parallel, the parallel includes straight line parallel and arc parallel.

In some embodiments, the width of the heating belt 12 in the axial direction is greater than the distance between two adjacent heating belts 12, so as to ensure that the aerosol generating product 1A has a larger heating area, so that the aerosol generating product 1A can be fully heated. Utilize efficiently and reduce waste. Specifically, the width of the heating belt 12 in the axial direction is about 1-5 mm, for example 3 mm, and the distance between two adjacent heating belts 12 is 0.8-2.5 mm, for example 1.6 mm.

In some embodiments, the first lead wire 31 and the second lead wire 32 are ordinary copper wires, which are mainly used for conducting electricity. In some other embodiments, the first lead wire 31 and the second lead wire 32 are thermocouple wires, and each heating belt 12 is provided with a second electrode 22, and the second electrode 22 is directly electrically connected to a second lead wire 32. A lead wire 31 is electrically connected with each heating belt 12 through the first electrode 21, and the first lead wire 31 and the second lead wire 32 are made of different materials, for example, the first lead wire 31 and the second lead wire 2 adopt nickel, nickel-chromium alloy respectively , nickel-silicon alloy, nickel-chromium-copper, consonant bronze, iron-chromium alloy and other galvanic couple materials prepared by two different materials, so that each second lead 32, the corresponding heating belt 12 and the first lead 31 constitute a thermoelectric Even, it can be used to detect the temperature of the heating belt 12, and can measure the temperature of each heating belt 12 separately, so as to facilitate the temperature control of each heating belt 12.

4, 7 and 11, each second electrode 22 includes a first portion 223 and a second portion 224, the first portion 223 extends along the circumference of the tubular body 11, and is electrically connected to the second end 122 of the heating belt 12 , the second part 224 extends along the axial direction of the tubular body 11 and is electrically connected to the second lead wire 22 . In order to make full use of the space on the second surface, the first part 223 can be vertically connected to the second part 224 .

In order to improve the heat transfer efficiency between the heating belt 12 and the aerosol generating product 1A, the heating belt 12 can be made as close as possible to the aerosol generating product 1A, and the distance between the heating belt 12 and the aerosol generating product 1A can be shortened, such as making the first The surface is positioned towards the direction of the aerosol generating article 1A. Of course, for other purposes, the heating belt 12 may be relatively far away from the aerosol generating product 1A, such as setting the second surface toward the direction where the aerosol generating product 1A is located, while the first surface faces away from the aerosol generating product 1A. Orientation setting etc.

Specifically, in one embodiment, referring to FIG. 16 , the tubular body 11 has a receiving cavity inside, and the receiving cavity is located in the receiving cavity for containing at least a part of the aerosol generating product 1A, so that the tubular body 11 is used to generate air from the aerosol. The circumferential direction of the aerosol-generating article 1A transmits energy so that the aerosol-generating article 1A heats up from its circumferential direction inwardly. At this time, the first surface on which the heating belt is provided is the inner surface of the tubular body 11 .

In the embodiment shown in Figures 1-8, the tubular body 11 is used to insert into the interior of the aerosol generating product 1A, and is used to heat the aerosol generating product 1A from the inside to generate aerosol. At this time, the first surface on which the heating belt 12 is provided is the outer surface of the tubular body 11 .

Please refer to Fig. 13, the present application also provides an aerosol generating device, which has a very simple structure, including a heater 1 and a main body 1D, the heater 1 and the main body 1D are combined to form an aerosol generating device, and the heater 1 is fixed on the main body 1D, and extend out of the aerosol generating device in the axial direction, so that the heater is at least partially exposed outside the main body 1D and located in the environment.

Specifically, in one embodiment, referring to FIG. 13 , the heater 1 is used for inserting into the aerosol generating product 1A, and by inserting the heater 1 into the inside of the aerosol generating product 1A, the aerosol generating product 1A can be fixed in the air. On the aerosol generating device, the periphery of the aerosol generating product 1A is completely exposed because it is not surrounded by the aerosol generating device, that is, the surroundings of the receiving area for receiving the aerosol generating product are open. At this time, the first surface can be a tubular body 11 of the outer surface.

In another embodiment, the interior of the tubular body 11 has an accommodating chamber for accommodating at least a part of the aerosol generating product 1A. By inserting the aerosol generating product 1A into the accommodating chamber, the aerosol generating product 1A is fixed in the air. On the sol generating device, at this time, the first surface may be the inner surface of the tubular body 11, while the second surface is exposed in the air.

In another embodiment, the main body includes a bracket and a housing, and the housing is movably connected with the bracket between the first position and the second position, that is, when the bracket remains stationary, the housing can move relative to the bracket, such as the housing Sliding up and down on the surface of the bracket, etc.; or the bracket is movably connected to the housing between the first position and the second position, that is, when the housing remains stationary, the bracket can move relative to the housing, such as the bracket stretches in the housing, Or forward, backward, etc. The heater is secured to the frame, and the housing forms a fixedly bounded receiving area (e.g., a receiving cavity) around the heater when the housing or the frame is in the first position to house and confine at least a portion of the aerosol-generating article such that The aerosol-generating article can be fixed on the aerosol-generating device by being connected to the heater and the housing at the same time, and the existence of the housing can prevent the surface of the aerosol-generating article from being too hot. When the housing or support is in the second position, at least part of the heater protrudes out of the aerosol generating device, so that a part of the periphery of the area where the aerosol generating article is inserted by the heater can be exposed without being restricted by the housing, that is, the receiving area The peripheral area is not clearly defined. Alternatively, the casing has a first state and a second state due to relative movement with the support, wherein the first state is that the heater is accommodated inside the casing, and the second state is that the heater is exposed outside the casing.

When the heater 1 is used for inserting the aerosol-generating article 1A, it is advantageous for the heater 1 to be substantially in the shape of a pin or a needle for being inserted into the aerosol-generating article 1A. Meanwhile, the heater 1 may have a length of about 12-19 mm, and a diameter of 2.0-2.6 mm. In order to increase the hardness of the heater, please refer to Fig. 2, the heater also includes a rod core 13, the rod core 13 extends along the axial direction of the tubular body 11, is at least partly located inside the tubular body 11, and can support the tubular body from inside to outside along the radial direction. Body 11. Rod core 13 can be made of ceramics, thereby the cast sheet that makes tubular body 11 can be curled along the surface of rod core 13, is fixed on rod core 13 by sintering then, in order to reduce energy consumption, speed up heat dissipation simultaneously, rod core 13 can be hollow; of course it can be understood that the rod core 13 can also be made of metal material, and when combined with the tubular body 11, its surface is insulated, or the second surface of the tubular body 11 is insulated, so as to To prevent current flow between the electrode on the second surface and the metal rod core 13, the metal rod core 13 can be used to improve the release of one or some heating belts 12 by utilizing the higher thermal conductivity and lower heat capacity of the metal. The heating rate of the corresponding area on the rod core 13 and the energy consumption of reducing the temperature rise of the corresponding area of the rod core 13, so that the area corresponding to the certain or some heating belts 12 on the aerosol generating product 1A can quickly generate gas. At the same time, when the suction is stopped, or when the heating belt 12 stops sending energy, the metal rod core 13 can quickly cool the aerosol generating product 1A in the corresponding area due to its faster heat dissipation speed, so as to avoid continuing to generate gas. The sol causes waste. Of course, in order to ensure faster heating and cooling speeds, and to save energy, the metal rod core 13 can also be hollow.

Referring to FIG. 2 , the rod core 13 further includes a guiding portion 131 and a base 132 . The guide part 131 is arranged on the top of the heater 1 in the axial direction, and the guide part 131 is used to guide and facilitate the insertion of the heater 1 into the aerosol generating product 1A, so the guide part 131 is located outside the tubular body 11 and guides The radius of the connection surface between the portion 131 and the tubular body 11 is equal to the outer diameter of the tubular body 11 , so as to avoid the formation of steps between the guide portion 131 and the tubular body 11 . The guide part 133 may be in the shape of a pointed tip or a truncated cone, which is not specifically limited here. The base 132 is disposed on the bottom of the tubular body 11 in the axial direction, opposite to the guide portion 131 . The base 132 is used to fix the heater 1 in the aerosol generating device, and has the function of a flange. In some embodiments, there is a gap between the rod core 13 and the tubular body 11, and transverse, longitudinal or helical convex ribs can be set on the rod core, through which the convex rib radially abuts and supports the tubular body 11. The wall is used to increase the above-mentioned gap. By setting the gap, it is beneficial to reduce the overall weight of the heater 1, thereby reducing energy consumption, and at the same time accelerating heat dissipation and cooling of the heater 1.

In some embodiments, there is an air inlet hole on the base 132, and the air inlet hole communicates with the outside world and the inside of the tubular body 11, and cold air can enter the inside of the tubular body 11 through the air inlet hole, so as to cool the tubular body 11 from the inside. Air cooling is used to cool down the tubular body 11 when the suction is stopped or the heating belt 12 stops releasing energy, so that the aerosol generating product 1A stops producing aerosol quickly. Alternatively, there is a cold air inlet in the receiving cavity of the aerosol generating device for the cold air to enter, and to cool the tubular body 11 from the outside.

In the above-mentioned heater and aerosol generating device, the heating bands are arranged at intervals and distributed on the tubular body in the axial direction, so that the heating track is simpler and convenient to manufacture; at the same time, the heating band is arranged on the first On the surface, the electrodes electrically connected to each heating strip are arranged on the second surface of the tubular body, which not only facilitates the independent electrical control of each heating strip, but also simplifies the circuit distribution structure and reduces the volume of the heater.

It should be noted that the preferred embodiments of the application are given in the description of the application and its drawings, but they are not limited to the embodiments described in the description. Further, for those of ordinary skill in the art, they can Improvements or transformations are made according to the above description, and all these improvements and transformations shall fall within the scope of protection of the appended claims of this application.

Claims (20)

1. A heater for generating an aerosol from an aerosol generating product, comprising: using a tubular body of flexible insulating material, the tubular body having a first surface and a second surface, the first surface being disposed adjacent the aerosol-generating article; At least one heating strip is disposed on the first surface for heating the aerosol-generating article; a corresponding electrode of the heating strip is disposed on the second surface, and the heating strip is electrically connected to the corresponding electrode. connect. 2. The heater according to claim 1, wherein the first surface is provided with a plurality of heating bands, the plurality of heating bands are distributed along the axial direction of the tubular body at intervals, and at least one The heating band extends in a circumferential direction of the first surface. 3. The heater according to claim 2, wherein the electrodes comprise a first electrode and a plurality of second electrodes, the first electrode extends along the axial direction of the tubular body, and simultaneously communicates with a plurality of One end of the heating belt is electrically connected, and the plurality of second electrodes are respectively electrically connected to the other end of the corresponding heating belt. 4. The heater according to claim 2, wherein a plurality of heating bands are evenly distributed in the axial direction of the tubular body, or at least part of the plurality of heating bands are in the axial direction of the tubular body evenly distributed. 5. The heater according to claim 1, wherein the heating belt forms a non-closed annular structure, and its opposite ends extending along the circumferential direction of the tubular body are respectively a first end and a second end, The opposite ends extending axially along the tubular body are respectively the third end and the fourth end; The first end is electrically connected to the first electrode, and the second end is electrically connected to the second electrode; The distance between the first end and the second end is greater than the distance between the third end and the fourth end. 6. The heater according to claim 1, wherein the electrodes comprise a first electrode and a second electrode; the heater further comprises a first lead and a second lead; The heating belt has a first end and a second end oppositely arranged, the first end is electrically connected to the first electrode, and the first lead wire is electrically connected to the first electrode by welding, and the first end is electrically connected to the first electrode. The two ends are electrically connected to the second electrode, and the second lead is electrically connected to the second electrode by welding. 7. The heater according to claim 6, further comprising a first via hole and a second via hole on the heater; The first conduction hole is arranged at one end of the heating belt and runs through the tube wall of the tubular body, and the second conduction hole is set at the other end of the heating belt and runs through the tube wall of the tubular body. wall; The first electrode or one end of the heating tape passes through or fills the first via hole, so that the first electrode is electrically connected to one end of the heating tape; The second electrode or the other end of the heating strip passes through or fills the second via hole, so that the second electrode is electrically connected to the other end of the heating strip. 8. The heater according to claim 6, further comprising a third via hole and a fourth via hole on the heater; The third via hole is provided at one end of the first electrode and runs through the tube wall of the tubular body, and the fourth via hole is provided at one end of the second electrode and runs through the tubular body the pipe wall; The first electrode fills or passes through the third via hole, so that the first electrode and the first lead are electrically connected at the third via hole, and the second electrode fills or passes through the third via hole. The fourth via hole is such that the second electrode is electrically connected to the second lead at the fourth via hole. 9. The heater of claim 6, wherein the first lead wire and the second lead wire are thermocouple wires made of different materials. 10. The heater of claim 1, wherein a release coating is provided on the first surface. 11. The heater according to claim 1, characterized in that, the heater further comprises a rod core, the rod core is located inside the tubular body, and there is a gap between the rod core and the tubular body gap. 12. The heater according to claim 1, wherein the heating strip is disposed on the first surface by means of thick film printing, physical deposition, chemical deposition, spraying, ion sputtering or ion implantation; and /or the electrodes are disposed on the second surface by means of thick film printing, physical deposition, chemical deposition, spray coating, ion sputtering or ion implantation. 13. The heater according to claim 1, wherein the tubular body has a multilayer structure, the outermost surface of the multilayer structure is the first surface, or the outermost surface of the multilayer structure is The inner surface is the first surface. 14. The heater according to claim 1, wherein the tubular body is a ceramic casting sheet, and the same unfolded surface of the ceramic casting sheet is provided with the heating belt and the electrode, and after winding, Opposite said first surface and said second surface are formed. 15. The heater according to claim 1, wherein the tubular body is a cast ceramic sheet, and the heating belt and the electrodes are respectively arranged on two opposite surfaces of the cast ceramic sheet. 16. The heater according to claim 1, characterized in that, the wall thickness of the tubular body is not greater than 0.4 mm; or, the thickness of the electrodes is between 53-125 μm; or, each of the heating bands The resistance is between 0.5 and 1.5Ω. 17. An aerosol generating device, characterized by comprising the heater according to claims 1-16. 18. An aerosol generating system, characterized in that it comprises the aerosol generating device according to claim 17, further comprising an aerosol generating article; the aerosol generating device comprises a receiving area for receiving the aerosol generating device at least part of the article; In the receiving zone, the aerosol-generating article is disposed on the periphery of the heater and is disposed proximate to the first surface; or In the receiving zone, the aerosol-generating article is disposed inside the heater and proximate to the first surface. 19. The aerosol-generating system of claim 18, wherein the receiving area is located on top of the aerosol-generating device, and the receiving area includes only the aerosol-generating article and the heater . 20. The aerosol generating system according to claim 18, wherein the aerosol generating device comprises a housing and a bracket for fixing the heater; The housing and the bracket move relatively to have a first state and a second state; Wherein the first state is that the heater is accommodated inside the casing, and the second state is that the heater is exposed outside the casing.