CN213908506U - Heating element and aerosol forming device - Google Patents

Heating element and aerosol forming device Download PDF

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Publication number
CN213908506U
CN213908506U CN202022115930.5U CN202022115930U CN213908506U CN 213908506 U CN213908506 U CN 213908506U CN 202022115930 U CN202022115930 U CN 202022115930U CN 213908506 U CN213908506 U CN 213908506U
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heating
extension
heat generating
heat
heating element
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CN202022115930.5U
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王守平
张幸福
刘娟
张琳
方日明
周晓勇
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Shenzhen Smoore Technology Ltd
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Shenzhen Smoore Technology Ltd
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Abstract

The application provides a heating element and aerosol-forming device. The heating assembly comprises a heating body, the heating body is used for inserting and heating aerosol forming substrates, the heating body comprises first extending parts and second extending parts, the first extending parts are arranged at intervals, the second extending parts are connected with one ends of the first extending parts, and the first extending parts and the second extending parts are used for being at least partially inserted into the aerosol forming substrates and generating heat to heat the aerosol forming substrates when the heating body is electrified. The heating element in the heating component can be directly inserted into the aerosol forming substrate, so that the stability is good; and the uniformity of heating of the aerosol-forming substrate is greatly improved.

Description

Heating element and aerosol forming device
Technical Field
The utility model relates to a heating incombustible equipment technical field of being fuming especially relates to a heating element and aerosol forming device.
Background
Electronic cigarettes are used as cigarette substitutes, and are more and more concerned and favored by people due to the advantages of safe, convenient, healthy, environment-friendly and the like; for example, the electronic cigarette is not heated to burn, which is also called a heating non-combustion aerosol forming apparatus.
The heating mode of the existing heating non-combustible aerosol forming device is generally tubular peripheral heating or central embedded heating; tubular peripheral heating means that a heating tube is wrapped around the outside of an aerosol-forming substrate (e.g. tobacco) to heat the aerosol-forming substrate, and central insert heating is the insertion of a heating tube into an aerosol-forming substrate to heat the aerosol-forming substrate. Among them, the heating element is widely used because of its characteristics such as simple manufacture and convenient use. The existing heating component is mainly formed by adopting ceramic or metal subjected to insulation treatment as a substrate, then printing or coating a resistance heating circuit on the substrate, and fixing the resistance heating circuit on the substrate after high-temperature treatment.
However, since the resistive heating line on the conventional heating element is a thin film that is post-printed or plated on the base, the resistive heating line is easily detached from the base due to the bent shape of the substrate when the heating element is inserted into the aerosol-forming substrate several times, resulting in poor stability, and the resistive heating line is in contact with only the aerosol-forming substrate on the side of the base where the resistive heating line is provided, but not with the aerosol-forming substrate on the back of the base, resulting in poor uniformity of heating the aerosol-forming substrate during heating.
SUMMERY OF THE UTILITY MODEL
The application provides a heating element and aerosol forming device, this heating element can solve the resistance heating circuit on the current heating element and when high temperature generates heat, drops from the basement easily, poor stability, and at the in-process that generates heat, the relatively poor problem of heating homogeneity of resistance heating circuit to aerosol formation matrix.
In order to solve the technical problem, the application adopts a technical scheme that: there is provided a heating element comprising a heating element for inserting and heating an aerosol-forming substrate, the heating element comprising first extensions arranged at intervals and a second extension connected to one end of the first extensions, the first and second extensions both being for at least partially inserting the aerosol-forming substrate and generating heat when energized to heat the aerosol-forming substrate.
Wherein the first and second extensions are for insertion into the aerosol-forming substrate with both opposing surfaces in contact with the aerosol-forming substrate.
The first extension part and the second extension part are arranged in parallel at intervals, the heating connection further comprises a third extension part which is used for being completely inserted and heating the aerosol forming substrate, and one ends, close to the first extension part and the second extension part, of the first extension part and the second extension part are connected through the third extension part.
The heating assembly further comprises two electrodes, wherein one electrode is arranged at one end, far away from the third extending portion, of the first extending portion, and the other electrode is arranged at one end, far away from the third extending portion, of the second extending portion.
Wherein, the heating body is a heating plate made of conductive ceramics, and the distance between the first extension part and the second extension part on the heating plate is 0.25-0.35 mm.
The heating body is a heating rod made of conductive ceramics, and the distance between the first extension part and the second extension part on the heating rod is 0-1 mm.
Wherein a support ceramic is arranged between the first extension part and the second extension part, and the support ceramic is bonded with the first extension part and the second extension part through glass ceramic.
Wherein, the heating element comprises a main component and a crystal component; the main component is one or more of manganese, strontium, lanthanum, tin, antimony, zinc, bismuth, silicon and titanium, and the crystal component is one or more of lanthanum manganate, lanthanum strontium manganate, tin oxide, zinc oxide, antimony oxide, bismuth oxide, silicon oxide and yttrium oxide.
Wherein, the heating component also comprises a fixed jacket which is sleeved outside the heating body.
Wherein, the material of fixed overcoat is the metal, and is provided with insulating medium layer between fixed overcoat and the heat-generating body.
The first extension part and the second extension part are provided with a first clamping structure on part of the surface for inserting into the mounting seat, or the fixing outer sleeve is provided with a first clamping structure on part of the surface for inserting into the mounting seat.
The heating component also comprises a protective layer which is coated on the surface of the heating element and covers the two electrodes.
Wherein, the protective layer is a glass glaze layer.
The first surface of the first extension part and the second surface opposite to the first surface are both provided with electrodes, and the first surface of the second extension part and the second surface opposite to the first surface are both provided with electrodes.
The first extension part is provided with a first inner surface and a first outer surface, the second extension part is provided with a second inner surface and a second outer surface, the electrode on the first extension part extends from the first outer surface to the first inner surface, and the electrode on the second extension part extends from the second outer surface to the second inner surface.
The heating body comprises a first heating area and a second heating area connected with the first heating area, the ratio of the heating temperature of the first heating area to the heating temperature of the second heating area of the heating body is more than 2, and the two electrodes are arranged in the second heating area of the heating body.
The width or/and thickness of the part of the first extension part and the second extension part, which are positioned in the second heat generation area, is the same as the width or/and thickness of the part of the first extension part and the second extension part, which are positioned in the first heat generation area.
The width or/and thickness of the part of the first extension part and the second extension part, which are positioned in the second heat-generating area, is larger than the width or/and thickness of the part of the first extension part and the second extension part, which are positioned in the first heat-generating area, so that the temperature of the first heat-generating area of the heat-generating body is higher than the temperature of the second heat-generating area of the heat-generating body.
The heating body is integrally formed, and the parts of the first extension part and the second extension part, which are positioned in the second heating area, and the parts of the first extension part and the second extension part, which are positioned in the first heating area, adopt materials with different resistivities, so that the temperature of the first heating area of the heating body is higher than that of the second heating area of the heating body.
In order to solve the above technical problem, another technical solution adopted by the present application is: an aerosol-forming device is provided comprising a housing and a heat generating component and a power supply component disposed within the housing; the power supply assembly is connected with the heating assembly and used for supplying power to the heating assembly, and the heating assembly is the heating assembly.
The heating assembly comprises a heating body used for inserting and heating aerosol forming substrates, the heating body comprises first extension parts arranged at intervals and second extension parts connected with one ends of the first extension parts, and the first extension parts and the second extension parts are used for at least partially inserting the aerosol forming substrates and generating heat to heat the aerosol forming substrates when being electrified; and because the heating element is directly inserted into and heats the aerosol-forming substrate, the heating uniformity of the aerosol-forming substrate is greatly improved.
Drawings
Fig. 1a is a schematic structural diagram of a heat generating component according to a first embodiment of the present application;
fig. 1b is a schematic structural diagram of a heat generating component according to a second embodiment of the present application;
figure 1c is a schematic illustration of a heat generating component inserted into an aerosol-forming substrate according to an embodiment of the present application;
FIG. 2 is a disassembled schematic view of the structure shown in FIG. 1 b;
fig. 3a is a schematic structural diagram of a heat generating component according to a third embodiment of the present application;
figure 3b is a schematic view of a heat generating component according to another embodiment of the present application inserted into an aerosol-forming substrate;
FIG. 4 is a disassembled schematic view of the structure shown in FIG. 3 a;
FIG. 5 is a schematic plan view of a heat generating component according to an embodiment of the present application;
FIG. 6 is a schematic plan view of a heat-generating component according to another embodiment of the present application;
FIG. 7 is a schematic plan view of a heat-generating component according to yet another embodiment of the present application;
fig. 8 is a schematic size diagram of a heat plate according to an embodiment of the present disclosure;
FIG. 9 is a schematic size diagram of a heating rod according to an embodiment of the present application;
FIG. 10a is a schematic view showing a structure in which electrodes are provided on two opposite surfaces of a heat generating body according to an embodiment of the present application;
fig. 10b is a schematic structural diagram of a heating rod according to an embodiment of the present application;
FIG. 10c is a view of a heating element according to an embodiment of the present application in the direction E;
FIG. 11 is a side view of a heat generating component provided in accordance with an embodiment of the present application;
fig. 12 is a schematic position diagram of a first heat-generating region and a second heat-generating region on a heat-generating plate according to an embodiment of the present application;
fig. 13 is a schematic position diagram of a first heat-generating region and a second heat-generating region on a heat-generating rod according to an embodiment of the present application;
FIG. 14 is a schematic structural view of a heating element according to an embodiment of the present application after being assembled with a mounting base;
FIG. 15 is a schematic view of a fastening sleeve according to an embodiment of the present application;
FIG. 16 is a schematic view of a fastening sleeve according to another embodiment of the present application;
FIG. 17 is a schematic view of a heating assembly including a stationary outer sleeve according to an embodiment of the present application;
FIG. 18 is a schematic view of the structure of FIG. 17 prior to assembly;
FIG. 19 is a schematic view of a heating assembly including a stationary outer sleeve according to another embodiment of the present application;
FIG. 20 is a schematic view of the structure of FIG. 19 prior to assembly;
FIG. 21 is a schematic structural diagram of a mounting base according to an embodiment of the present disclosure;
fig. 22 is a schematic structural diagram of the mounting base and the heat generating plate provided in the embodiment of the present application after being assembled;
fig. 23 is a schematic structural view of the mounting base and the heating rod provided in the embodiment of the present application after being assembled;
fig. 24 is a schematic structural view of a mounting base provided in another embodiment of the present application after being assembled with a heating rod;
FIG. 25 is a front view of a mounting base and a heat generating component of an embodiment of the present application after assembly;
fig. 26 is a schematic structural diagram of an aerosol-forming device according to an embodiment of the present application.
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, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within 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 implying any indication of the number of technical features indicated. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of the feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless explicitly specifically limited otherwise. All directional indications (such as up, down, left, right, front, and rear … …) in the embodiments of the present application are only used to explain the relative positional relationship between the components, the movement, and the like in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indication 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 can be combined with other embodiments.
The present application will be described in detail with reference to the accompanying drawings and examples.
Referring to fig. 1a to 4, in which, fig. 1a is a schematic structural diagram of a heating element according to a first embodiment of the present application; fig. 1b is a schematic structural diagram of a heat generating component according to a second embodiment of the present application; figure 1c is a schematic illustration of a heat generating component inserted into an aerosol-forming substrate according to an embodiment of the present application; FIG. 2 is a disassembled schematic view of the structure shown in FIG. 1 b; fig. 3a is a schematic structural diagram of a heat generating component according to a third embodiment of the present application; figure 3b is a schematic view of a heat generating component according to another embodiment of the present application inserted into an aerosol-forming substrate; fig. 4 is a disassembled schematic view of the structure shown in fig. 3 a. In the present embodiment, a heat generating component 10 is provided, the heat generating component 10 being particularly for inserting and heating an aerosol-forming substrate 102; for example, in one embodiment, the heating element 10 is particularly adapted for inserting tobacco for heating, as exemplified in the following embodiments; it will be appreciated that in this embodiment, the aerosol-forming substrate 102 may specifically be tobacco.
Specifically, the heating element 10 includes a heating element 11; in one embodiment, the heating element 11 may be a self-supporting structure, that is, the heating element 11 can exist independently without being attached to other carriers; compared with the existing heating component formed by printing or coating a resistance heating element on a substrate, the heating element 11 with the self-supporting structure can be directly and independently inserted into the aerosol forming substrate 102, the problem that the heating element falls off from a ceramic substrate or a metal substrate during high-temperature heating is avoided, and the stability of the heating component 10 is greatly improved; and because this heat-generating body 11 is self-supporting structure, need not to cooperate the base plate, two relative surfaces of heat-generating body 11 all can with tobacco direct contact, not only energy utilization is high, and the heating to tobacco is comparatively even, and the temperature field border of predetermineeing is clear, especially low pressure starts power instant control and design of being convenient for.
Wherein, the material of heat-generating body 11 specifically can be conductive ceramic, compares in current metal material, and this ceramic material's heat-generating body 11 conduction efficiency is higher, and the temperature that the heating produced is comparatively even: the ceramic heating body 11 can be adjusted and designed at 3-4W, and the electric conductivity can reach 1 x 10-4Ohm-1 x 10-6Ohm, bending strength is more than 40MPa, and fire resistance is higher than 1200 ℃; meanwhile, the ceramic heating element 11 has the characteristic of full-stroke starting voltage.
Specifically, the electromagnetic heating wavelength of the material of the ceramic heating element 11 is the mid-infrared wavelength, which is beneficial to atomizing the tobacco tar and improving the taste; in addition, the crystal phase structure of the ceramic heating element 11 is high-temperature stable oxide ceramic, and the oxide ceramic has good fatigue resistance, high strength and high density, so that the problems of volatilization and dust of harmful heavy metals can be effectively avoided, and the service life of the heating element 11 is greatly prolonged.
It can be understood that, the ceramic integral heating element 11 is adopted, the area of the highest temperature hot spot can be reduced, the risks of fatigue cracking and fatigue resistance increase are eliminated, and the consistency is better; and because of the high strength of the ceramic heating material and the smoothness brought by the microcrystalline structure, the surface of the heating body 11 is easy to clean and not easy to adhere; in addition, the ceramic heating element 11 is manufactured by adopting a ceramic production process, the ceramic production process mainly comprises the working procedures of raw material mixing, forming, sintering and cutting, the process is simple and convenient to control, the cost is low, and the popularization of production and the improvement of economic benefits are facilitated.
Specifically, the conductive ceramic heating element 11 specifically includes a main component and a crystal component; wherein, the main component is used for conducting electricity and making the heating element 11 of the conductive ceramics form a certain resistance; it can be one or more of manganese, strontium, lanthanum, tin, antimony, zinc, bismuth, silicon and titanium; the crystal component, i.e., the main material of the ceramic material, may be specifically one or more of lanthanum manganate, lanthanum strontium manganate, tin oxide, zinc oxide, antimony oxide, bismuth oxide, silicon oxide, and yttrium oxide. In other embodiments, the heating element 11 may be made of a metal alloy or a ceramic alloy made of an iron-silicon-aluminum alloy.
In particular, referring to fig. 1a, in an embodiment the heat generating component 10 in particular comprises a first extension 111 and a second extension 112 connected to the first extension 111, and in a particular embodiment both the first extension 111 and the second extension 112 are for at least partial insertion into the aerosol-forming substrate 102 and for generating heat when energized to heat the aerosol-forming substrate 102; it can be understood that the first extension part 111 and the second extension part 112 can be independently and directly inserted into the aerosol-forming substrate 102, while the existing heating element printed on a ceramic substrate by silk screen or plating can be inserted into the aerosol-forming substrate 102 by means of the ceramic substrate, which cannot be directly inserted into the aerosol-forming device, and the first extension part 111 and the second extension part 112 provided by the present application cannot fall off from the ceramic substrate to cause failure when heated at high temperature, which greatly improves the stability of the heating assembly 10.
In particular, the first and second extensions 111, 112 are in contact with the aerosol-forming substrate 102 on opposite surfaces of the portion for insertion of the aerosol-forming substrate 102; it will be appreciated that since the heat generating body 11 of the present application is directly inserted into the aerosol-forming substrate 102 without the aid of a base plate, at least two opposing surfaces of the first and second extensions 111, 112 of the heat generating body 11 may be in direct contact with the aerosol-forming substrate 102, thereby greatly improving the heat utilization and heating efficiency.
In another embodiment, referring to fig. 1b and 3a, the heat generating assembly 10 further comprises a third extension 113 for fully inserting and heating the aerosol-forming substrate 102; specifically, in this embodiment, the first extension portion 111 and the second extension portion 112 are arranged in parallel and spaced, and one end of the first extension portion 111 close to the second extension portion 112 is connected through the third extension portion 113; wherein the end of the first extension 111 and the second extension 112 that is proximal to each other is specifically the end that is first contacted and inserted into the aerosol-forming substrate 102; it is understood that the first extension 111, the second extension 112 and the third extension 113 are formed in a substantially U-shaped configuration; in a specific embodiment, the first extension portion 111, the second extension portion 112, and the third extension portion 113 are made of conductive ceramic and are integrally formed and sintered; specifically, the heat-generating body substrate may be cut by laser cutting to form the cutting groove 114, thereby obtaining the heat-generating body 11 having the first extending portion 111, the second extending portion 112, and the third extending portion 113. It is to be understood that the heating element 11 may be directly formed by sintering.
Specifically, the shapes of the first extension portion 111, the second extension portion 112, and the third extension portion 113 are not limited, and may be designed according to actual needs. Specifically, the first extension portion 111 and the second extension portion 112 are elongated, and the third extension portion 113 gradually decreases in width from the end close to the first extension portion 111 to the end far from the first extension portion 111, so as to form a tip, so that the heating element 11 can be conveniently inserted into the tobacco. In the present embodiment, the first extension portion 111 and the second extension portion 112 are rectangular parallelepiped, and the third extension portion 113 is substantially V-shaped. In other embodiments, the third extending portion 113 may also be U-shaped or isosceles trapezoid, or another shape with a width gradually decreasing from an end close to the first extending portion 111 and the second extending portion 112 to a direction away from the first extending portion 111 and the second extending portion 112. In the present embodiment, the cutting groove 114 is a rectangle with a uniform width or a convex guiding arc is formed at one end of the rectangle near the third extending portion 113; specifically, the slot 114 is an axisymmetric structure, the longitudinal direction of the slot is parallel to the direction of the central axis, the first extension 111 and the second extension 112 are arranged in parallel at intervals, the longitudinal direction of the first extension 111 and the second extension 112 is parallel to the direction of the central axis of the slot 114, and the width direction of the first extension 111, the second extension 112 and the third extension 113 is perpendicular to the direction of the central axis of the slot 114. The heating element 11 has a structure symmetrical with respect to the central axis of the slot 114, that is, the first extension 111, the second extension 112 and the third extension 113 are all symmetrical with respect to the central axis of the slot 114, so that the temperatures of the corresponding positions in the width direction of the first extension 111, the second extension 112 and the third extension 113 on both sides of the slot 114 are consistent, and the taste of the smoke is better.
In other embodiments, referring to fig. 5, fig. 6 is a schematic plan view of a heat generating component according to an embodiment of the present application; the first extension portion 111 and the second extension portion 112 are also arranged in parallel, but the width of the slot 114 may be a centrosymmetric structure gradually decreasing from one end far away from the third extension portion 113 to one end near the third extension portion 113, and the outer sides of the first extension portion 111 and the second extension portion 112 are parallel and the width gradually increases from one end far away from the third extension portion 113 to one end of the third extension portion 113. This slightly increases the resistance at the end away from the third extension 113, so as to balance the resistance between the third extension 113 and the resistor (the third extension 113 has a larger resistance), and thus the overall heat generation is more uniform.
In other embodiments, referring to fig. 6, fig. 6 is a schematic plan view of a heat-generating component provided in accordance with another embodiment of the present application; the cutting groove 114 may be a central symmetrical structure gradually increasing from one end far away from the third extending portion 113 to one end of the third extending portion 113, the outer sides of the corresponding first extending portion 111 and second extending portion 112 are parallel, and the widths of the first extending portion 111 and second extending portion 112 gradually decrease from one end far away from the third extending portion 113 to one end of the third extending portion 113, so that the resistance near the upper end of the heating element 11 is relatively large, and the design requirement of the heating mode that the high temperature of the heating element 11 is relatively concentrated at the middle and upper sections is satisfied.
In other embodiments, referring to fig. 7, fig. 7 is a schematic plan view of a heat-generating component according to yet another embodiment of the present application; the first extension portion 111 and the second extension portion 112 are rectangular, but are not parallel to each other, but are disposed at an angle, for example, an angle of 3-10 degrees, in this case, the width of the cutting groove 114 may be a central symmetry structure gradually decreasing from an end far from the third extension portion 113 to an end of the third extension portion 113.
In a specific embodiment, referring to fig. 8, fig. 8 is a schematic size diagram of a heat plate provided in an embodiment of the present application; the heat-generating body 11 may have a plate shape as shown in fig. 8, and may be a heat-generating plate made of conductive ceramics, in this embodiment, the distance between the first extending portion 111 and the second extending portion 112 is less than one tenth of the width of the entire heat-generating body 11, and the distance L1 between the first extending portion 111 and the second extending portion 112 may be 0.25-0.35 mm, so as to avoid the short circuit problem while effectively ensuring the strength of the heat-generating body 11.
Specifically, the specific resistance of the ceramic used for the heat generating plate may be 5 × 10-5Ohm, the design power can be 2 watts, and the resistance can be 0.71 ohm; specifically, the heating plate may be a single series type (with a slot 114 in the middle), that is, the first extension 111, the third extension 113, and the second extension 112 are connected in series in sequence, and the plate thickness H1 may be 0.5 mm, and the total length L2 may be 18 mm; the length L3 of the first extension 111 and the second extension 112 may be 16 mm, and it is understood that the single effective length of the heat-generating body 11 may be 32.0 mm; the length of the third extension part 113 of the heating element 11 may be 2 mm; specifically, the width W1 of the heat generating plate may be 4.0 mm; specifically, the error range of each size of the heating plate is not more than 0.05 mm. Both opposite surfaces of the plate-shaped heat-generating body 11 may be used to contact and heat the aerosol-forming substrate 102.
In another embodiment, referring to fig. 4 and 9, fig. 9 is a schematic size diagram of a heating rod provided in an embodiment of the present application; the heat generating body 11 may also have a rod shape, which may be a heat generating rod made of conductive ceramics, and in this embodiment, the distance L4 between the first extending portion 111 and the second extending portion 112 is less than one third of the diameter phi of the entire heat generating rod, and the distance L4 may be more than 0 and less than 1 mm, preferably, L4 may be 0.3 or 0.4 mm; specifically, in this embodiment, the support ceramic 14 is further disposed between the first extension portion 111 and the second extension portion 112 to enhance the strength of the heating element 11, so that the heating element 11 can be inserted into the tobacco more smoothly in the process of inserting the heating element 11 into the tobacco, and the probability of bending problem of the heating element 11 caused by stress is effectively reduced. Specifically, the support ceramic 14 may be bonded to the first and second extension portions 111 and 112 through the glass ceramic 15 to improve a bonding force therebetween. In the present embodiment, the support ceramic 14 may be made of a ceramic material such as zirconia, zirconia toughened alumina, or the like.
Specifically, the ceramic material used for the heating rod may have a resistivity of 3 × 10-5Ohm, design power may be 3-4W, e.g., 3.3 watts in particular, and resistance may be 0.3-1 ohm, e.g., 0.5 ohm; specifically, the heating rod may be a single serial connection type, that is, the first extension portion 111, the third extension portion 113, and the second extension portion 112 are sequentially connected in series, and the diameter Φ thereof may be 2 to 5 mm, specifically 3 mm, and the length L5 may be 18 to 22 mm, specifically 19.7 mm; the length L6 of the first extension part 111 and the second extension part 112 may be 12 to 18 mm, specifically 16 mm, and it is understood that the single effective length of the heating element 11 may be 30 to 35 mm, specifically 32.0 mm; the length of the third extension 113 may be 2-5 mm, specifically 3.7 mm; specifically, the length L7 of the support ceramic 14 disposed between the first extension portion 111 and the second extension portion 112 may be 12 to 18 mm, specifically 17 mm, the width W2 may be the same as the diameter Φ of the heat generating rod, specifically 2 to 5 mm, specifically 3 mm, the thickness H2 may be slightly smaller than the distance between the first extension portion 111 and the second extension portion 112, specifically, the thickness H2 may be 0.8 to 1.2 mm, for example, 0.9 mm, so as to facilitate the disposing of the glass ceramic 15.
In a specific embodiment, referring to fig. 1b to 4, the heating assembly 10 further includes two electrodes 12, one electrode 12 of the two electrodes 12 is disposed on the first extension 111, and the other electrode 12 is disposed on the second extension 112; in a specific use process, the two electrodes 12 are electrically connected with the power supply component through electrode leads respectively, so that the heating body 11 is electrically connected with the power supply component. Specifically, referring to fig. 1b and fig. 2, the two electrodes 12 are respectively disposed on the same side of the first extension portion 111 and the end of the second extension portion 112 far from the third extension portion 113. Two electrodes 12 coat the surface formation of conductive ceramic lower extreme for conductive silver thick liquid, concretely, two electrodes 12 are roughly half cylinder and extend to grooving 114 respectively at its both ends of the cross section of heat-generating body 11, so increase as far as possible with conductive ceramic's area of contact in order to reduce contact resistance, and have bigger area and make things convenient for the welding electrode lead wire, for the very little heating circuit of size that prior art silk screen printing or coating film formed, electrode 12 is big with the contact resistance who heats the circuit, the heat-generating body 11 of this application can greatly increased with electrode 12's area of contact, thereby reduce contact resistance, make the stability of heat-generating body 11 use better.
In a specific embodiment, referring to fig. 10a, fig. 10a is a schematic structural view of electrodes provided on two opposite surfaces of a heating body according to an embodiment of the present application; when the heat generating body 11 is a heat generating plate, the electrodes 12 may be provided on the two opposite surfaces of the first extending portion 111 and the second extending portion 112, that is, one electrode 12 may be provided on both the first surface C of the end portion of the first extending portion 111 and the second surface D provided opposite to the first surface C, and the other electrode 12 may be provided on both the first surface C of the end portion of the second extending portion 112 and the second surface D provided opposite to the first surface C, and when connecting the two electrode leads, one of the Y-shaped electrode leads may be connected to the two electrodes 12 on the two surfaces on the first extending portion 111, and the other Y-shaped electrode lead may be connected to the electrode 12 on the second extending portion 112; when the heating element 11 is a heating rod, refer to fig. 10b, and fig. 10b is a schematic structural diagram of the heating rod provided in an embodiment of the present application; the two electrodes 12 can extend to the inner wall surfaces corresponding to the cutting grooves 114 respectively; specifically, the first extension 111 of the heat generating rod has a first inner surface 111a and a first outer surface 111b, the second extension 112 has a second inner surface 112a and a second outer surface 112b, the electrode 12 on the first extension 111 extends from the first outer surface 111a to the first inner surface 111b, and the electrode 12 on the second extension 112 extends from the second outer surface 112a to the second inner surface 112 b. By providing the electrodes 12 on both surfaces of the heating body 11, not only welding is facilitated, but also resistance is small, heat generated when power is turned on is small, and damage can be effectively prevented. And electrify at the same time at two surfaces of the conductive ceramic, form the same electric potential, help to make the electric field of conductive component between two surfaces uniform, the heating effect is better.
In the present embodiment, the notch 114 penetrates the first surface C and the second surface D. Further, referring to fig. 10c, fig. 10c is a view of a heating element according to an embodiment of the present application; in the thickness direction of the heating element 11, the edges of the first extending portion 111, the second extending portion 112 and the third extending portion 113 form a guiding surface 118 from the surface parallel to the middle of the first surface C and the second surface D to the first surface C and the second surface D, and the guiding surface 118 may be a guiding inclined surface (see fig. 10C) or an arc shape, so that the heating element 11 is not only convenient to insert into tobacco, but also can reduce resistance, thereby better protecting the heating element 11.
In a specific embodiment, the electrodes 12 may be formed at both end portions of the first and second extension parts 111 and 112 in a coating manner to improve the coupling force between the electrodes 12 and the heating body 11, thereby improving the connection stability between the electrode lead connected to the electrodes 12 and the heating body 11; it can be understood that the ceramic has a microporous structure, and the microporous structure of the ceramic can make the bonding force between the formed electrode 12 and the heating body 11 stronger even if the coating thickness is larger, thereby greatly improving the bonding force between the electrode 12 and the heating body 11. Specifically, the coating material may be silver paste. It will be appreciated that the electrode 12 may also be formed by depositing a metal film, for example gold, platinum, copper or the like in a quantity greater than 1 x 10-6An ohmic metallic material.
In a specific embodiment, referring to fig. 11, fig. 11 is a side view of a heat generating component provided in an embodiment of the present application; the surface of the heating element 11 can be coated with a protective layer 115, and the protective layer 115 covers the two electrodes 12 to prevent tobacco tar formed when the tobacco is heated from damaging or polluting the electrodes 12 and the heating element 11; specifically, the protective layer 115 may be a glass glaze layer.
Specifically, referring to fig. 12 and 13, fig. 12 is a schematic position diagram of a first heat-generating region and a second heat-generating region on a heat-generating body according to an embodiment of the present application; fig. 13 is a schematic position diagram of a first heat-generating region and a second heat-generating region on a heat-generating rod according to an embodiment of the present application; the heating body 11 comprises a first heating area A and a second heating area B connected with the first heating area A, wherein the first heating area A is a main atomization area inserted into tobacco for heating, the atomization temperature on the first heating area A is concentrated at 280-350 ℃ and occupies more than 75% of the area of the atomization area, and the second heating area B is a main matching section of the heating body 11 and has the temperature below 150 ℃; in one embodiment, the length of the first heat-generating region a of the heat-generating rod may be 14.5 mm, and the length of the second heat-generating region B may be 5.2 mm.
In a particular embodiment, only a majority of the first and second heat generating zones a, B of the first and second extensions 111, 112 are inserted into the aerosol-forming substrate 102, while a minority of the first and second heat generating zones a, B stay outside the aerosol-forming substrate 102; or the first heat generating zone a is fully inserted into the aerosol-forming substrate 102 and the second heat generating zone B remains outside the aerosol-forming substrate 102; or the first heat generating zone a is fully inserted into the aerosol-forming substrate 102 and a small portion of the second heat generating zone B is also inserted into the aerosol-forming substrate 102, only a large portion of the second heat generating zone B remaining outside the aerosol-forming substrate 102.
In the embodiment, two electrodes 12 are specifically disposed in the second heat generation area B of the heat generation body 11 to lower the atomization temperature of the ceramic heat generation body 11 located in the second heat generation area B. In this embodiment, the ratio of the heat generation temperature of the first heat generation area a to the heat generation temperature of the second heat generation area B of the heat generation body 11 is greater than 2.
In a specific embodiment, the resistivity of the material of the part of the heating element 11 positioned in the second heating area B is smaller than that of the material of the part of the heating element 11 positioned in the first heating area a, so that the temperature of the first heating area a of the heating element 11 is higher than that of the second heating area B; meanwhile, materials with different resistivities are arranged in different heating areas, so that the temperatures of the different heating areas are regulated and controlled through resistivity differences; specifically, the main body components of the ceramic materials of the part of the heating element 11 located in the first heating area a and the part of the heating element 11 located in the second heating area B are substantially the same and are integrally molded, but the proportion of the ceramic materials of the part of the heating element 11 located in the first heating area a and the part of the heating element 11 located in the second heating area B is different or other components are different, so that the resistivity of the part of the heating element 11 located in the first heating area a is different from that of the part of the heating element 11 located in the second heating area B. Compared with the prior art, the scheme that the first heating area A and the second heating area B are made of different conductive materials, such as an aluminum film and a gold film, and the two different conductive materials are spliced can effectively avoid the problem that the conductors of the first heating area A and the second heating area B of the heating body 11 are broken.
In another specific embodiment, referring to fig. 12, the width or/and thickness of the portion of the heat generating body 11 where the first and second extensions 111 and 112 are located in the second heat generating region B is larger than the width or/and thickness of the portion of the heat generating body 11 where the first and second extensions 111 and 112 are located in the first heat generating region a, so that the temperature of the first heat generating region a of the heat generating body 11 is higher than the temperature of the second heat generating region B; in this embodiment, the widened portion of the second heat generating region B of the heat generating body 11 is caught in the mounting seat 20 to limit the mounting seat 20 by the widened portion of the heat generating body 11, thereby preventing the mounting seat 20 from being displaced relative to the heat generating body 11 during the insertion and extraction process and affecting the connection stability between the electrode lead and the electrode 12.
Of course, in other embodiments, referring to fig. 14, fig. 14 is a schematic structural view of a heating body provided in an embodiment of the present application after being assembled with a mounting base; the temperature of the first heating area A of the heating body 11 can be made to be higher than that of the second heating area B by controlling the material; for example, the lower half portion of the heating element 11 is added with a conductive component, so that the lower half portion has smaller resistance and lower temperature during heating, and therefore, in this embodiment, the width or/and thickness of the portion of the first extension portion 111 and the second extension portion 112 located in the second heating area B can be the same as the width or/and thickness of the portion of the first extension portion 111 and the second extension portion 112 located in the first heating area a, thereby facilitating processing and avoiding the problem of tobacco or tobacco tar sticking by the widened portion.
In a specific use process, the heating component 10 is inserted into tobacco, and the heating component 10 starts to work after being electrified, so that the tobacco is heated and smoke is generated.
In the heating element 10 provided in this embodiment, the heating element 10 includes the heating element 11, the heating element 11 includes the first extending portion 111 disposed at an interval and the second extending portion 112 disposed at an interval with the first extending portion 111, and the first extending portion 111 and the second extending portion 112 are both used for at least partially inserting the aerosol-forming substrate 102 and generating heat when energized to heat the aerosol-forming substrate 102, compared with the existing heating element with a silk-screen or a film-coated substrate, the heating element 11 of the present application can be directly and independently inserted into the aerosol-forming substrate 102, and the problem of failure caused by falling off from the ceramic substrate when heated at a high temperature does not occur, so that the stability of the heating element 10 is greatly improved; meanwhile, because the heating element 11 is a self-supporting structure, a substrate does not need to be matched, and two opposite surfaces of the heating element 11 can be in direct contact with the aerosol-forming substrate 102, the heating uniformity of the heating component 10 on the aerosol-forming substrate 102 is effectively improved.
In an embodiment, refer to fig. 15 to 20, wherein fig. 15 is a schematic structural view of a fixing sheath provided in an embodiment of the present application; FIG. 16 is a schematic view of a fastening sleeve according to another embodiment of the present application; FIG. 17 is a schematic view of a heating assembly including a stationary outer sleeve according to an embodiment of the present application; FIG. 18 is a schematic view of the structure of FIG. 17 prior to assembly; FIG. 19 is a schematic view of a heating assembly including a stationary outer sleeve according to another embodiment of the present application; fig. 20 is a schematic view of the structure of fig. 19 prior to assembly.
That is, the heating element 10 further includes a fixing sleeve 13, and the fixing sleeve 13 is sleeved on the outer side of the heating element 11 to enhance the fatigue resistance of the heating element 11, so as to increase the service life of the heating element 10. Specifically, the material of the fixing sheath 13 may be metal, such as steel; the wall thickness of the fixing sleeve 13 may be 0.1-0.5 mm.
Specifically, when the heating element 11 is a heating plate, the specific structure of the fixing sheath 13 can be seen in fig. 15, the structure of the product after the fixing sheath 13 is sheathed with the plate-shaped heating element 11 can be seen in fig. 17, and the disassembled schematic view thereof can be seen in fig. 18. Specifically, the fixing cover 13 is also plate-shaped, and has an open end and a closed end. The closed end of the fixing sheath 13 forms a tip, opposite sidewalls of the open end have notches 131, and two electrodes 12 may be respectively disposed on side surfaces of the first and second extensions 111 and 112 away from the incision groove 114 and exposed through the notches 131 so as to be connected to the electrode leads 23.
When the heating element 11 is a heating rod, the specific structure of the fixing sheath 13 can be seen in FIG. 16, and the structure of the product after the fixing sheath 13 and the rod-shaped heating element 11 are sheathed can be seen in FIG. 19, and the disassembled schematic view thereof can be seen in FIG. 20. Specifically, the fixing sleeve 13 is also rod-shaped, and has an open end and a closed end. The closed end of the fixing sheath 13 forms a tip, opposite sidewalls of the open end have notches 131, and two electrodes 12 may be respectively disposed on side surfaces of the first and second extensions 111 and 112 away from the incision groove 114 and exposed through the notches 131 so as to be connected to the electrode leads 23.
Specifically, referring to fig. 20, an insulating medium layer 24 is disposed between the heating element 11 and the fixing sheath 13 to enhance the bonding force between the fixing sheath 13 and the heating element 11 and avoid short circuit; specifically, the insulating medium layer 24 may be selectively coated on the outer surface of the heating element 11 or the inner surface of the fixing sheath 13 according to the process, and the coating thickness may be specifically 0.05 to 0.1 mm. In one embodiment, the insulating medium layer 24 is coated on the surface of the heating element 11 and exposes the slit 114 and the electrode 12.
Specifically, the length of the fixing sheath 13 is the same as or smaller than the length of the heating element 11. It will be appreciated that, since the fixing sleeve 13 has a pointed end, the third extension 113 may also have no pointed end, facilitating the machining. In other embodiments, the longitudinal length of the fixing sheath 13 is smaller than the length of the heating element 11, that is, the portion having the electrode 12 is not covered by the fixing sheath 13, so that both surfaces of the heating element 11 can be directly fixed to the mounting seat 20, and the portions of the first extension 111 and the second extension 112 inserted into the tobacco are reinforced, and are not deformed or broken.
Referring to fig. 21 to 24, fig. 21 is a schematic structural diagram of a mounting base according to an embodiment of the present application; fig. 22 is a schematic structural diagram of the mounting base and the heat generating plate provided in the embodiment of the present application after being assembled; fig. 23 is a schematic structural view of the mounting base and the heating rod provided in the embodiment of the present application after being assembled; fig. 24 is a schematic structural view of a mounting base provided in another embodiment of the present application after being assembled with a heating rod; that is, in the specific embodiment, the heat generating component 10 is disposed on the mounting base 20 to form a heat generating mechanism during use, and the mounting base 20 is fixedly fastened to the heat generating component 10 to mount the heat generating component 10 in the main body of the aerosol-forming device through the mounting base 20. Specifically, when the heating element 11 is a heating plate, the structure of the product after the assembly of the mounting seat 20 and the heating element 11 can be seen in fig. 22, and when the heating element 11 is a heating rod and the fixing sheath 13 is not sheathed outside the heating element 11, the structure of the product after the assembly of the heating element 11 of the mounting seat 20 can be seen in fig. 23; when the fixing cover 13 is provided outside the heating element 11, the mounting seat 20 can be selectively mounted on the heating element 11 or the fixing cover 13 according to the actual situation. For example, when the length of the fixing sheath 13 is the same as the length of the heating element 11, the mounting seat 20 may be fitted over the fixing sheath 13, and specifically, referring to fig. 24, when the length of the fixing sheath 13 is smaller than the length of the heating element 11, the end of the heating element 11 coated with the electrode 12 is exposed outside the fixing sheath 13, the mounting seat 20 is fixed at the end of the heating element 11 exposed outside the fixing sheath 13, that is, at the second heating region B of the heating element 11, and the mounting seat 20 abuts against the end of the fixing sheath 13 close to the mounting seat 20. Preferably, when the end of the heating body 11 coated with the electrode 12 is exposed outside the fixing sheath 13, the mount 20 is fixed to the open end of the fixing sheath 13, that is, the open end of the fixing sheath 13 is inserted into the mount 20, and the end of the heating body 11 coated with the electrode 12 passes through the mount 20.
Specifically, the material of the mounting seat 20 may be an organic or inorganic material having a melting point higher than 160 degrees, for example, PEEK material; the mounting base 20 may be bonded to the heat generating component 10 by an adhesive, which may be a high temperature resistant glue.
In one embodiment, referring to fig. 21 and 22, the mounting base 20 includes a mounting main body 21, a through hole 22 is provided on the mounting main body 21, and the heating body 11 is specifically inserted into the through hole 22 to be mounted with the mounting base 20; in the specific embodiment, the part corresponding to the second heat generating area B of the heat generating body 11 is inserted into the through hole 22; specifically, an avoiding groove 211 is provided on a side wall of the through hole 22, and the electrode lead 23 specifically extends into the mounting base 20 through the avoiding groove 211 to be connected to the electrode 12 on the heating element 11. Further, the mounting body 21 is further provided with at least two clamping portions 24, and the mounting base 20 is specifically fixed with the housing of the aerosol-forming device through the clamping portions 24.
In a specific embodiment, referring to fig. 25, fig. 25 is a front view of a mounting base and a heat generating component provided in an embodiment of the present application after assembly; when the heating assembly 10 is fixed to the mounting base 20 through the heating element 11 (see fig. 25), a first fastening structure 116 is provided on a part of the surface of the heating element 11, where the first extension 111 and the second extension 112 are used to be inserted into the mounting base 20, a second fastening structure 117 is provided at a position corresponding to the first fastening structure 116 in the through hole 22 of the mounting base 20, and the mounting base 20 and the heating element 11 are fixed by the fastening of the first fastening structure 116 and the second fastening structure 117, so as to improve the connection stability of the two; when the fixing outer sleeve 13 of the heat generating component 10 is fixed to the mounting base 20, the first fastening structure 116 may be disposed on a portion of the surface of the fixing outer sleeve 13 for inserting into the mounting base 20, so as to cooperate with the second fastening structure 117 in the mounting base 20 to realize the fixing therebetween. The first fastening structure 116 may be a plurality of protrusions (or recesses), and the second fastening structure 117 may be a recess (or protrusion) matching with the first fastening structure 116.
The heating component 10 provided in this embodiment can directly adopt a self-supporting ceramic heating plate (or heating rod) as the heating form, and the heating elements 11 can be arranged in a single series connection form according to the arrangement position of the electrodes 12 and the resistance value requirement; meanwhile, the heating body 11 is made of ceramic materials, and compared with a heating body structure formed by coating metal heating materials on the existing ceramic substrate, the heating body structure can contact tobacco on two sides and heat the tobacco simultaneously, and heating is more uniform and stable.
Referring to fig. 26, fig. 26 is a schematic structural diagram of an aerosol-forming device according to an embodiment of the present disclosure; in the present embodiment, an aerosol-forming device 100 is provided, the aerosol-forming device 100 comprising a housing 101 and a heat generating component 10, a mounting 20 and a power supply component 30 arranged within the housing 101.
The heating assembly 10 is arranged on the mounting seat 20 and is fixedly mounted on the inner wall surface of the casing 101 through the mounting seat 20; specifically, the specific structures and functions of the heating element 10 and the mounting base 20 can be referred to the description of the relevant embodiments in the heating element 10 provided in the above embodiments, and are not described herein again; the power supply module 30 is connected to the heating module 10 and supplies power to the heating module 10; and in one embodiment the power supply assembly 30 may be embodied as a rechargeable lithium ion battery.
The aerosol-forming device 100 provided in this embodiment is provided with the heating element 10 to heat and atomize the tobacco after the tobacco is inserted; compared with the heating element printed on a ceramic substrate in the prior art, the heating element 11 can be directly and independently inserted into the aerosol-forming substrate 102, the problem of failure caused by falling off from the ceramic substrate during high-temperature heating is avoided, and the stability of the heating element 10 is greatly improved; meanwhile, the heating element 11 is of a self-supporting structure, and a substrate does not need to be matched, so that the surface of the whole heating element 11 is in direct contact with the aerosol-forming substrate 102, and the heating uniformity of the heating component 10 is effectively improved.
The above embodiments are merely examples and are not intended to limit the scope of the present disclosure, and all modifications, equivalents, and flow charts using the contents of the specification and drawings of the present disclosure or those directly or indirectly applied to other related technical fields are intended to be included in the scope of the present disclosure.

Claims (19)

1. A heating element, characterized in that, includes the heat-generating body, the heat-generating body is used for inserting and heating aerosol-forming substrate, just the heat-generating body includes the first extension that the interval set up and the second extension that links to each other with the one end of first extension, first extension reaches the second extension all is used for at least part to insert aerosol-forming substrate and when the circular telegram produce heat in order to heat aerosol-forming substrate.
2. A heat generating component according to claim 1, wherein the first and second extensions are for insertion into the portion of the aerosol-forming substrate with both of their opposing surfaces in contact with the aerosol-forming substrate.
3. A heat generating assembly according to claim 1, wherein the first and second extensions are juxtaposed in spaced apart relation, the heat generating connection further comprising a third extension for fully inserting and heating the aerosol-forming substrate, the first and second extensions being connected at their proximal ends by the third extension.
4. The heat generating assembly of claim 3 further comprising two electrodes, one electrode disposed at an end of the first extension portion distal from the third extension portion and the other electrode disposed at an end of the second extension portion distal from the third extension portion.
5. The heat generating component as claimed in claim 4, wherein the heat generating body is a heating plate made of conductive ceramics, and a distance between the first extension part and the second extension part on the heating plate is 0.25-0.35 mm.
6. The heating element according to claim 4, wherein the heating element is a heating rod made of conductive ceramics, and the distance between the first extension part and the second extension part on the heating rod is 0-1 mm.
7. The heat generating component of claim 6 wherein a support ceramic is disposed between the first and second extensions and bonded to the first and second extensions by a glass ceramic.
8. The heating element as claimed in claim 1, further comprising a fixing sheath disposed around the heating element.
9. The heating assembly as claimed in claim 8, wherein the fixing sheath is made of metal, and an insulating medium layer is disposed between the fixing sheath and the heating element.
10. The heat generating component of claim 8, wherein a portion of the surface of the first extension portion and the second extension portion for insertion into the mounting base has a first fastening structure, or a portion of the surface of the fixing cover for insertion into the mounting base has a first fastening structure.
11. The heat generating component of claim 4, further comprising a protective layer coated on the surface of the heat generating body and covering the two electrodes.
12. The heating element of claim 11 wherein said protective layer is a glass glaze layer.
13. The heat generating assembly of claim 5 wherein a first surface of the first extension and a second surface opposite the first surface are each provided with the electrode, and a first surface of the second extension and a second surface opposite the first surface are each provided with the electrode.
14. The heat-generating assembly of claim 6 wherein the first extension has a first inner surface and a first outer surface, the second extension has a second inner surface and a second outer surface, the electrode on the first extension extends from the first outer surface to the first inner surface, and the electrode on the second extension extends from the second outer surface to the second inner surface.
15. The heating assembly as claimed in claim 4, wherein the heating body comprises a first heating region and a second heating region connected with the first heating region, the ratio of the heating temperature of the first heating region to the heating temperature of the second heating region of the heating body is greater than 2, and the two electrodes are disposed in the second heating region of the heating body.
16. The heat generating component of claim 15, wherein a width or/and a thickness of a portion of the first extension and the second extension located in the second heat generating region is the same as a width or/and a thickness of a portion of the first extension and the second extension located in the first heat generating region.
17. The heat generating component according to claim 15, wherein a width or/and a thickness of a portion of the first extending portion and the second extending portion located in the second heat generating region is larger than a width or/and a thickness of a portion of the first extending portion and the second extending portion located in the first heat generating region, so that a temperature of the first heat generating region of the heat generating body is higher than a temperature of the second heat generating region of the heat generating body.
18. The heat generating component of claim 15, wherein the heat generating body is integrally formed, and a portion of the first extension portion and the second extension portion located in the second heat generating region and a portion of the first extension portion and the second extension portion located in the first heat generating region are made of materials with different resistivities, so that the temperature of the first heat generating region of the heat generating body is higher than that of the second heat generating region of the heat generating body.
19. An aerosol-forming device, comprising: the heating module and the power supply module are arranged in the shell; wherein the power supply component is connected to the heat generating component for supplying power to the heat generating component, and the heat generating component is the heat generating component according to any one of claims 1 to 18.
CN202022115930.5U 2020-09-23 2020-09-23 Heating element and aerosol forming device Active CN213908506U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114176263A (en) * 2021-11-09 2022-03-15 深圳麦克韦尔科技有限公司 Heating assembly, preparation method of heating assembly and electronic atomization device
WO2023179109A1 (en) * 2022-03-21 2023-09-28 深圳麦克韦尔科技有限公司 Aerosol generation apparatus and heater therefor, and material for preparing heater

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114176263A (en) * 2021-11-09 2022-03-15 深圳麦克韦尔科技有限公司 Heating assembly, preparation method of heating assembly and electronic atomization device
WO2023179109A1 (en) * 2022-03-21 2023-09-28 深圳麦克韦尔科技有限公司 Aerosol generation apparatus and heater therefor, and material for preparing heater

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