WO2022062444A1 - 发热组件及气溶胶形成装置 - Google Patents

发热组件及气溶胶形成装置 Download PDF

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Publication number
WO2022062444A1
WO2022062444A1 PCT/CN2021/096133 CN2021096133W WO2022062444A1 WO 2022062444 A1 WO2022062444 A1 WO 2022062444A1 CN 2021096133 W CN2021096133 W CN 2021096133W WO 2022062444 A1 WO2022062444 A1 WO 2022062444A1
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WIPO (PCT)
Prior art keywords
electrode
heating
substrate
heating element
groove
Prior art date
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PCT/CN2021/096133
Other languages
English (en)
French (fr)
Inventor
西克宇
李亚飞
张立超
谷岩
于春生
郭辉
Original Assignee
深圳麦克韦尔科技有限公司
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Publication date
Application filed by 深圳麦克韦尔科技有限公司 filed Critical 深圳麦克韦尔科技有限公司
Priority to KR1020227044140A priority Critical patent/KR20230010751A/ko
Priority to JP2022577778A priority patent/JP7514961B2/ja
Priority to EP21870831.1A priority patent/EP4218447A4/en
Publication of WO2022062444A1 publication Critical patent/WO2022062444A1/zh

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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/02—Details
    • H05B3/04—Waterproof or air-tight seals for heaters
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
    • A24F40/46—Shape or structure of electric heating means
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/02—Details
    • H05B3/03—Electrodes
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/02—Details
    • H05B3/06—Heater elements structurally combined with coupling elements or holders
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/10—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor
    • H05B3/12—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material
    • H05B3/14—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material the material being non-metallic
    • H05B3/141—Conductive ceramics, e.g. metal oxides, metal carbides, barium titanate, ferrites, zirconia, vitrous compounds
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/10—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor
    • H05B3/16—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor the conductor being mounted on an insulating base
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/20—Devices using solid inhalable precursors
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/013—Heaters using resistive films or coatings
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/022—Heaters specially adapted for heating gaseous material

Definitions

  • the invention relates to the technical field of heat-not-burn smoking equipment, in particular to a heating component and an aerosol forming device.
  • heat-not-burn electronic cigarettes also known as heat-not-burn aerosol-forming devices .
  • tubular peripheral heating or central embedded heating
  • tubular peripheral heating means that the heating tube surrounds the aerosol-forming substrate (such as tobacco) to heat the aerosol-forming substrate.
  • center-embedded heating is to insert a heat generating element into the aerosol-forming substrate to heat the aerosol-forming substrate.
  • heating components are widely used because of their simple manufacture and convenient use.
  • the current heating components mainly use ceramics or metal treated with insulation as the substrate, and then print or coat the resistance heating circuit on the substrate, and fix the resistance heating circuit on the substrate after high temperature treatment.
  • the resistance heating circuit on the existing heating element is a thin film that is later printed or coated on the substrate, during the use process of inserting the heating element into the aerosol-forming substrate for many times, the resistance generates heat due to the bending deformation of the substrate.
  • the resistance heating circuit is only in contact with the aerosol-forming substrate on the side of the substrate where the resistance heating circuit is arranged, and does not form with the aerosol on the back of the substrate. Substrate contact, resulting in poor heating uniformity of the aerosol-forming substrate.
  • the present application provides a heating component and an aerosol forming device.
  • the heating component can solve the problem that when the resistance heating circuit on the existing heating component is heated at a high temperature, it is easy to fall off the substrate, and the stability is poor. The problem of poor uniformity of heating of the aerosol-forming substrate by the heating circuit.
  • a technical solution adopted in the present application is to provide a heating component, the heating component includes a substrate, at least one heating body, a first electrode and a second electrode; wherein the substrate is used for at least partially inserting the aerosol forming a matrix, and the substrate has a first end and a second end; at least one heating element is embedded in the substrate, and the heating element has a first connection end and a second connection end opposite to the first connection end; the first At least one of the electrode and the second electrode extends from the first end to the second end, and one of the first electrode and the second electrode is electrically connected to the first connection terminal, and the other electrode is electrically connected to the second connection terminal Electrical connection; wherein, at least one heating element is used for inserting into the aerosol-forming substrate and supplying electricity through the first electrode and the second electrode to generate heat.
  • an aerosol forming device the aerosol forming device includes a housing, a heating component and a power supply component arranged in the housing;
  • the component connection is used to supply power to the heating component, and the heating component is the heating component mentioned above.
  • the heating component is provided with a substrate and a heating body to heat the aerosol-forming substrate through the heating body; meanwhile, the heating body is embedded in the substrate, which can effectively improve the performance of the heating component.
  • the strength enables the heating element to be stressed through the substrate during the process of inserting the aerosol to form the matrix, effectively avoiding the problem of bending of the heating element due to stress; and compared with the existing silk screen printing or coating on the substrate.
  • the resistance heating circuit of the present application, the substrate and the heating element of the present application can be directly and independently inserted into the aerosol to form a matrix, and there is no problem that the heating element falls off from the substrate and causes failure during high temperature heating, which greatly improves the stability of the heating component.
  • the first electrode and the second electrode by arranging the first electrode and the second electrode, and making at least one electrode of the first electrode and the second electrode extend from the first end to the second end of the substrate, the first electrode and the second electrode One of the electrodes is electrically connected to the first connection end of the heating body, and the other electrode is electrically connected to the second connection end of the heating body, so that the heating body forms a current loop, which can not only avoid the short circuit problem, but also the process is relatively simple. , the strength of the heating element is higher.
  • FIG. 1a is a schematic structural diagram of a heating component provided by the first embodiment of the present application.
  • Fig. 1b is a schematic diagram of inserting a heating element into an aerosol-forming substrate according to an embodiment of the present application
  • FIG. 2 is a schematic diagram of product dimensions of the heating element shown in FIG. 1a according to an embodiment of the present application;
  • FIG. 3 is a schematic diagram of the product size of the heating element shown in FIG. 1a according to another embodiment of the present application;
  • Fig. 4a is a side view of the heating component provided by the first specific embodiment of the application.
  • Fig. 4b is a side view of the heating component provided by the second specific embodiment of the present application.
  • Fig. 4c is a side view of the heating component provided by the third specific embodiment of the present application.
  • FIG. 5 is a side view of a heating assembly provided by a fourth specific embodiment of the present application.
  • FIG. 6 is a side view of a heating component provided by an embodiment of the present application.
  • FIG. 7 is a schematic structural diagram of a heating assembly provided by a second embodiment of the present application.
  • FIG. 8a is a schematic structural diagram of a heating assembly provided by a third embodiment of the present application.
  • Fig. 8b is a side view of the heating component provided by the fifth specific embodiment of the present application.
  • FIG. 9 is a side view of a heating assembly provided by a sixth specific embodiment of the present application.
  • FIG. 10 is a schematic structural diagram of a heating assembly provided by a fourth embodiment of the present application.
  • FIG. 11 is a side view of a heating assembly provided by a seventh specific embodiment of the present application.
  • FIG. 12 is a schematic structural diagram of an aerosol forming apparatus according to an embodiment of the present application.
  • first”, “second” and “third” in this application are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature defined as “first”, “second”, “third” may expressly or implicitly include at least one of that feature.
  • "a plurality of” means at least two, such as two, three, etc., unless otherwise expressly and specifically defined. All directional indications (such as up, down, left, right, front, rear%) in the embodiments of the present application are only used to explain the relative positional relationship between components under a certain posture (as shown in the accompanying drawings).
  • FIG. 1a is a schematic structural diagram of a heating element provided by a first embodiment of the application
  • FIG. 1b is a schematic diagram of a heating element inserted into an aerosol-forming matrix provided by an embodiment of the application
  • FIG. 3 is a schematic diagram of the product size of the heating element shown in FIG. 1a provided by another embodiment of the application; in this embodiment, a heating element is provided.
  • the heating component 60 is specifically used to insert and heat the aerosol-forming substrate 67, for example, in a specific embodiment, the heating component 60 can be specifically used to insert tobacco to heat the tobacco, and the following embodiments are all based on this. It can be understood that, in this embodiment, the aerosol-forming substrate 67 can specifically be tobacco; wherein, the schematic diagram of inserting the heating element 60 into the aerosol-forming substrate 67 can be seen in FIG. 1b.
  • the heating element 60 includes a substrate 61, at least one heating element 62, and a first electrode 63a and a second electrode 63b.
  • the substrate 61 is used for at least partially inserting into the aerosol-forming substrate 67, and has a first end portion M and a second end portion N opposite to the first end portion M;
  • the tobacco is heated, and the heating element 62 is specifically embedded in the substrate 61, so that the strength of the heating element 60 can be effectively improved by using the substrate 61, so that the heating element 60 can be stressed by the substrate 61 during the process of inserting the tobacco, effectively avoiding heat generation.
  • the substrate 61 and the heating body 62 of the present application can be directly and independently inserted into the gas
  • the sol forms the matrix 67 , and there is no problem that the heating element 62 falls off from the substrate 61 to cause failure when the heating element 62 is heated at a high temperature, which greatly improves the reliability of the heating element 60 .
  • the substrate 61 is inserted into the aerosol-forming matrix 67 corresponding to the position of at least part of the heating element 62 .
  • the heating element 62 has a first connection end E and a second connection end F, and at least one of the first electrode 63a and the second electrode 63b extends from the first end M to the second end N, so that the first One of the electrodes 63a and the second electrode 63b is electrically connected to the first connection end E of the heating element 62, and the other electrode is electrically connected to the second connection end F of the heating element 62, so that the heating element 62 forms a current loop , compared with the method of silk-screening or coating on the substrate to form a resistance heating film layer in the prior art, the heating element 62 is embedded in the substrate 61 , on the one hand, the thickness of the heating element 62 can be increased, so that it does not follow the deformation of the substrate 61 . Deformation or damage, on the other hand, the two opposite surfaces of the substrate 61 are brought close to the heating body 62, so that the heat of the two surfaces is more uniform.
  • At least one of the first electrode 63a and the second electrode 63b extends from the first end M to a position close to the second end N.
  • the first electrode 63a and the second electrode 63b can also be located near the first end M, or in the middle of the substrate 61, depending on the location of the heating element 62 and the series/parallel connection. form, which is not limited in this embodiment.
  • the substrate 61 can be a rectangular substrate 61.
  • the second end N of the substrate 61 is inserted into the tobacco first. Therefore, in order to facilitate the insertion of the heating element 60 into the tobacco, the first part of the substrate 61
  • the two end portions N may be specifically set as pointed ends, that is, in a triangular structure, and the included angle ⁇ 1 formed by two adjacent sides of the pointed end may be specifically 45 degrees to 90 degrees, for example, 60 degrees.
  • the connection between the two edges of the tip and the sides of the substrate 61 forms an arc, and the radius R 1 corresponding to the arc may be 1-3 mm, specifically 1 mm.
  • the substrate 61 can be an insulating ceramic substrate, the thermal conductivity of the insulating ceramic substrate can be 4-18W/(mk), the bending strength can be above 600MPa, the thermal stability can exceed 450 degrees, and the fire resistance can be higher than 1450 degrees .
  • the substrate 61 can also be a metal substrate provided with an insulating coating, such as stainless steel, so as to improve the strength of the heating element 60 and prevent the heating element 60 from bending or breaking, and at the same time, the heat generated by the heating element 62 can be reduced. It diffuses to the tobacco in contact with the substrate 61, thereby improving the heating uniformity of the tobacco.
  • the material of the substrate 61 may be a zirconia material.
  • the zirconia substrate 61 can maintain heat and transfer heat generated by the heating element 62 to provide energy utilization of the heating element 60 .
  • the insulating ceramic substrate may also be ceramics such as ZTA material (toughened zirconia), MTA (mullite and alumina composite).
  • the heating element 62 can also be made of a metal alloy or a ceramic alloy made of an iron-silicon-aluminum alloy.
  • At least one accommodating groove 611 may be opened on the base plate 61 along its length direction, and the heating element 62 is specifically accommodated in the accommodating groove 611, so that the heating element 60 can be inserted into the tobacco during the process of inserting the tobacco.
  • the substrate 61 is subjected to force to avoid the problem of bending caused by the direct force of the heating element 62 .
  • the substrate 61 can be cut according to a preset size by a laser to form the accommodating groove 611, so as to ensure the dimensional accuracy of the accommodating groove 611, and the distances between the accommodating groove 611 and the two edges of the substrate 61 are the same, that is,
  • the accommodating groove 611 is centrally arranged along the width direction of the substrate 61 .
  • glass ceramic material can be coated on the inner side wall of the accommodating groove 611 to bond the substrate 61 and the heating body 62 together, and then the insulating ceramic, glass ceramic and electrodes are sintered together, Due to the high viscosity of the glass ceramics, the bonding force between the heating element 62 and the substrate 61 can be effectively improved, and the use stability can be enhanced;
  • the substrate 61 may be provided with three spaced accommodating grooves 611 along its length direction, and the spaced distance L34 may be 2-3 mm, for example, may be 2.90 mm; , the cross-section of the accommodating groove 611 may be strip-shaped and bent or curved, such as a V-shaped (see FIG. 2 ) or a straight-line structure (see FIG. 8a below); The heating element 62 therein or disposed therein is also bent or curved corresponding to the shape of the accommodating groove 611 . Specifically, when the accommodating groove 611 has a similar V-shaped structure, the heating element also has a similar V-shaped structure.
  • the heating body when the accommodating groove 611 is an in-line structure, the heating body is also in a in-line structure, that is, the shape of the heating body 62 matches the shape of the accommodating groove 611; in a specific embodiment, the V-shaped structure
  • the heating body 62 has a V-shaped bottom facing the first end M and the resistance at the bottom is relatively large, which conforms to the design that the heat of the heating body 62 diffuses from bottom to top, so that the overall temperature of the heating body 62 is relatively uniform.
  • the cross-sectional shape of the accommodating groove 611 is not limited, and can be designed according to the shape of the heating body 62 .
  • the size of the substrate 61 with the similar V-shaped accommodating groove 611 can be referred to FIG. 2 and FIG. 3 ; specifically, the length L31 of the substrate 61 can be 10-15 mm, for example, it can be 13.20 mm, the width W31 may be 4-6 mm, such as 5 mm; the length L35 of the V-shaped accommodating groove 611 opened in the substrate 61 may be 3-4 mm, such as 3.00 mm, corresponding to The effective length is 4.2 mm, the thickness may be 0.3-0.6 mm, for example, it may be 0.5 mm, and the corresponding radius R 2 of the arc formed in the middle of the edge of the inner ring may be 0.5-1 mm, for example, it may be 0.75 mm.
  • the radius R 3 of the arc formed in the middle of the edge can be 0.5-1 mm, such as 0.75 mm, the radius of the inner wall fillet R 4 can be 0.2-0.5 mm, such as 0.25 mm, and the outer fillet R 5
  • the radius can be 1-2 mm, such as 1 mm
  • the distance W32 from the bottom of the inner ring edge to the bottom of the outer ring edge can be 1-2 mm, such as 1.15 mm
  • the distance W33 from the top of the base plate 61 can be 0.5-1 mm, such as 0.82 mm
  • the distance L32 from the bottom of the inner ring edge to the top of the second end N of the base plate 61 can be 3-4 mm, such as 3.94 mm
  • the arc ⁇ 2 formed by the edge of the outer ring can be 45°-90°, for example, 90°; it should be noted that the above-mentioned inner concave portion of the
  • the substrate 61 has a first surface C and a second surface D disposed opposite to the first surface C
  • the accommodating groove 611 can be a through groove penetrating the first surface C and the second surface D
  • the heating body 62 can be specifically is accommodated in the through groove
  • the heating body 62 has a first heating surface and a second heating surface opposite to the first heating surface, and in a specific embodiment, is accommodated in the accommodating groove 611
  • the first heating surface and the second heating surface of the heating body 62 inside are flush with the first surface C and the second surface D of the substrate 61;
  • the heating element 62 in the accommodating groove 611 is exposed from one side of the first surface and one side of the second surface of the substrate 61 respectively, so that after the heating element 62 is inserted into the tobacco, both surfaces of the heating element 62 can be compatible with the tobacco Direct contact not only has high energy utilization rate, but also has relatively uniform heating, and the preset temperature field boundary is clear, especially low-voltage start-up is convenient for instant power control and design
  • the first heating surface and the second heating surface of the heating element 62 may also slightly protrude from the first surface C and the second surface of the substrate 61 according to the actual needs of the temperature field division during heating. D or slightly recessed in the first surface C and the second surface D respectively; in this way, when the first heating surface and the second heating surface of the heating element 62 protrude from the first surface C and the second surface D of the substrate 61, it can make the The higher temperature of the heating element 62 is concentrated on the first heating surface and the second heating surface of the heating element 62, and the tobacco contacting the first heating surface and the second heating surface is roasted at a higher temperature, so that the smoke is more intense.
  • the first heating surface and the second heating surface of the heating body 62 are slightly recessed (ie lower than) the first surface C and the second surface D of the substrate 61, due to the barrier effect of the substrate 61, the heat can be generated.
  • the first heating surface and the second heating surface of the body 62 are in loose contact with the tobacco, which can slightly reduce the curing temperature of the tobacco by the heating body 62, so as to meet the requirement of softer smoke.
  • the heating body 62 can be one or more; and in a specific embodiment, the heating body 62 can be a self-supporting structure, that is, the heating body 62 can exist independently without being attached to other carriers; Compared with the existing resistance heating circuit formed by printing or coating on the substrate, the heating element 62 of the support structure can effectively avoid the problem of the heating element 62 falling off from the substrate 61 when the heating element 62 is heated at a high temperature or the substrate 61 is deformed, which greatly improves the heat generation. reliability of the assembly 60; and since the heating element 62 is a self-supporting structure and can be exposed from one side of the first surface and one side of the second surface of the substrate 61 at the same time, the heat utilization rate and heating uniformity are effectively provided.
  • the shape of the heating body 62 is not limited, and can be designed as required.
  • the heating body 62 may be in a strip shape and extend along the width direction of the substrate 61 and be bent or curved.
  • a curved portion or a bent portion is formed in the middle of the strip-shaped heating element 62 , and the included angle of the curved portion or the curved portion can be greater than 45 degrees, for example, can be 90 degrees, 120 degrees or 145 degrees.
  • the material of the heating element 62 can be a conductive ceramic.
  • the heating element 62 made of the conductive ceramic material has a higher conductivity efficiency, and the temperature generated by the heating is relatively uniform.
  • the heating body 62 can be adjusted and designed at 3-4 watts, and the conductivity can reach 1* 10-4 ohms-1* 10-6 ohms, specifically 5* 10-5 ohms, suitable for low-voltage start-up, easy power instant control and Design, and the flexural strength of the conductive ceramics can be greater than 40MPa, and the fire resistance can be higher than 1200°C; at the same time, the heating element 62 made of the conductive ceramics has the characteristics of starting voltage in the whole process.
  • the material of the heating element 62 made of the conductive ceramic can choose the electromagnetic heating wavelength as the mid-infrared wavelength, which is conducive to atomizing the e-liquid and improving the taste; in addition, the crystal phase structure of the heating element 62 made of the conductive ceramic It is a high temperature stable oxide ceramic, because the oxide ceramic has good fatigue resistance, high strength and high density, which can effectively avoid the volatilization of harmful heavy metals and dust problems, and greatly improve the service life of the heating element 62.
  • the heating body 62 made of the whole ceramic piece can reduce the hot spot area of the highest temperature, eliminate the risk of fatigue cracking and fatigue resistance increase, and have good consistency; and because of the high strength and microcrystalline structure of the ceramic heating material
  • the resulting smoothness makes the surface of the heating element 62 easier to clean and not easy to adhere to; in addition, using the ceramic production process to make the heating element 62 made of ceramic material, the process is relatively simple and easy to control, the cost is low, and it is conducive to production. promotion and economic benefits.
  • the heating element 62 made of the conductive ceramics specifically includes main components and crystal components; wherein, the main components are used to conduct electricity and make the conductive ceramics form a certain resistance, which can specifically be manganese, strontium, lanthanum, tin, antimony, One or more of zinc, bismuth, silicon, and titanium; the crystal component, that is, the main material of the ceramic material, is mainly used to form the shape and structure of the conductive ceramic, which can specifically be lanthanum manganate, lanthanum strontium manganate, One or more of tin oxide, zinc oxide, antimony oxide, bismuth oxide, silicon oxide, and yttrium oxide.
  • the heating element 62 can also be made of a metal alloy or a ceramic alloy made of a mixture of iron-silicon-aluminum alloy and ceramics.
  • the above-mentioned conductive ceramics are materials with TCR characteristics, that is, the temperature has a corresponding relationship with the resistance value, so the temperature value can be obtained by detecting the resistance value during use to control the temperature of the heating element 62 .
  • the first electrode 63a and the second electrode 63b can be formed by coating; specifically, in one embodiment, the first electrode 63a and the second electrode 63b are both disposed on the substrate 61 and electrically connected to the heating element 62
  • the first electrode 63a is directly formed on the surface of the substrate 61, for example, formed on the first surface 63a or the second surface 63b of the substrate 61; in another specific embodiment, the substrate 61 is provided with Two oppositely arranged grooves, the first electrode 63a and the second electrode 63b are respectively formed in the two grooves, and are respectively electrically connected to the first connection end E and the second connection end F of the heating element 62 .
  • FIG. 4a is a side view of the heating component provided by the first specific embodiment of the present application; the first electrode 63a and the second electrode 63b respectively include a first part and a second part; The first part of at least one of the first electrode 63a and the second electrode 63b forms the surface of the substrate, and the second part forms the surface of the heating element 62; further, the substrate 61 is provided with a first groove at a position corresponding to the first part of the electrode , the first part of the electrode is arranged in the first groove; the heating body 62 is provided with a second groove at the position corresponding to the second part of the electrode, and the second part of the electrode is arranged in the second groove. And in a specific embodiment, the thickness of the first part of the electrode is the same as the depth of the first groove, and the thickness of the second part of the electrode is the same as the thickness of the second groove.
  • FIG. 4b is a side view of the heating component provided by the second specific embodiment of the application; specifically, the first electrode 63a and the second electrode 63b further include a third part, The third portion of at least one of the first electrode 63 a and the second electrode 63 b extends to the side surface of the heat generating body 62 abutting against the substrate 61 .
  • one of the first electrode 63a and the second electrode 63b is arranged on the substrate 61, and the other electrode is arranged on the heating body 62; and the electrode arranged on the heating body 62 can also be directly formed with the The surface of the heating body 62 is arranged in the groove of the heating body 62 and is electrically connected with the heating body 62 .
  • forming the first electrode 63a and the second electrode 63b on the substrate 61 and/or the heating body 62 by coating as described above can improve the relationship between the first electrode 63a and the second electrode 63b and the substrate 61 and/or the heating body 62.
  • the bonding force between the first electrodes 63a and the second electrodes 63b improves the connection stability between the electrode leads 66 connected to the first electrode 63a and the second electrode 63b and the heating body 62; it can be understood that the ceramic has a microporous structure, and the The structure can make the bonding force between the first electrode 63a and the second electrode 63b formed and the substrate 61 and/or the heating body 62 stronger even when the coating thickness is larger, thereby greatly improving the thickness of the first electrode 63a and the second electrode 63b.
  • the bonding force between the second electrode 63b and the substrate 61 and/or the heating element 62 can be selected from silver paste.
  • first electrode 63a and the second electrode 63b can also be formed by depositing a metal film, for example, depositing gold, platinum, copper and other metal materials higher than 1* 10-6 ohms; the length of the coating can be 5-8 mm, such as 6.5 mm, and the thickness of the silver electrode coating may be 0.05-0.1 mm, such as 0.06 mm.
  • the first electrode 63a and the second electrode 63b are both arranged on the substrate 61 as an example; specifically, the first electrode 63a and the second electrode 63b are arranged on the same surface of the substrate 61, for example, arranged on the substrate 61 On the first surface C or the second surface D; in other embodiments, the first electrode 63a and the second electrode 63b can also be respectively arranged on the two surfaces, for example, the first electrode 63a is arranged on the first surface C, The second electrode 63b is provided with the second surface D, which can be selected according to the actual lead space requirements.
  • the first electrode 63a and the second electrode 63b can also be provided on both surfaces of the substrate 61 at the same time, that is, the number of the first electrode 63a and the second electrode 63b is two; Make the conductive components of the conductive ceramics close to the two surfaces of the conductive ceramics can have a short current path, so that the temperature field on the two surfaces of the heating element 62 is more uniform; at the same time, it is not only convenient for welding, but also can increase the heat generation with the conductive ceramics as much as possible
  • the contact area of the heating body 62 is reduced to reduce the contact resistance, so that less heat is generated when the heating body 62 is energized, the temperature is reduced, and the two surfaces of the heating body 62 of the conductive ceramic are energized at the same time, and the two surfaces form the same potential. It is beneficial to make the electric field of the conductive components between the two surfaces uniform, and the heating effect is better.
  • each heating element 62 there are at least two heating elements 62, and the at least two heating elements 62 are arranged in parallel between the first electrode 63a and the second electrode 63b;
  • the size of each heating element 62 can be made smaller, so that the supporting boss 65 (see FIG. The heating body 62 and the substrate 61 have good bonding force; at the same time, this can make the volume of the whole heating body 62 smaller, thereby saving electric energy and being easy to process.
  • the first electrodes 63 a and the second electrodes 63 b are arranged in parallel and spaced apart and both extend from the first end M to the second end N of the substrate 61 , and the three heating elements 62 are parallel and spaced along the length direction of the substrate 61 .
  • each heating element 62 is electrically connected to the first electrode 63a, and the other end is electrically connected to the second electrode 63b.
  • parts of the first electrode 63a and the second electrode 63b can be coated on the surface of the end of the heating element 62 to realize the electrical connection between the heating element 62 and the first electrode 63a and the second electrode 63b.
  • FIG. 4c is a side view of the heating component provided by the third specific embodiment of the application
  • FIG. 5 is the heating component provided by the fourth specific embodiment of the application.
  • Side view a support boss 65 can also be provided on the inner wall surface of the accommodating groove 611 close to the second surface of the substrate 61, and the heating body 62 is specifically overlapped on the surface of the support boss 65 away from the second surface of the substrate 61; specifically
  • the thickness of the heating element 62 can be smaller than the thickness of the substrate 61, and one side surface of the heating element 62 is flush with the first surface C of the substrate 61, and the other side surface is lower than the second surface D,
  • the specific structure can be seen in FIG.
  • the thickness of the heating body 62 can also be the same as the thickness of the substrate 61, and the two opposite surfaces of the heating body 62 are flush with the first surface C and the second surface D of the substrate 61 respectively, and at the same time , the position corresponding to the heating body 62 and the support boss 65 is provided with a vacant part, so that the heating body 62 is overlapped on the supporting boss 65, thereby preventing the heating body 62 from falling from the accommodating groove 611 of the base plate 61,
  • the specific structure can be seen in Figure 5.
  • the number of heating elements 62 may be three, and the three heating elements 62 are arranged at intervals along the length direction of the substrate 61 , and the distance L34 may be 2-3 mm, for example, may be 2.90 mm. ; And the first connection end E and the second connection end F of the heating body 62 are oppositely arranged along the width direction of the substrate 61; Specifically, the three heating bodies 62 are specifically accommodated in the container of the substrate 61 shown in FIG. 2 or FIG. 3 .
  • the corresponding structure and size of the accommodating groove 611 are the same as those of the accommodating groove 611 shown in FIG. 2 and FIG. 3 .
  • the substrate 61 is inserted into the aerosol-forming matrix 67 at least at a position corresponding to the heating element 62 .
  • the first electrode 63a and the second electrode 63b are both disposed on the substrate 61, and both extend from the first end M of the substrate 61 to a position close to the second end N; specifically, The first electrode 63a and the second electrode 63b are located on opposite sides of the heating body 62, and the first connection end E and the second connection end F of each heating body 62 extend to both sides of the substrate 61 to be connected with the first electrodes 63a and 62, respectively.
  • the second electrodes 63b are connected to form a current loop, and the heating elements 62 are provided in parallel.
  • the thickness of the silver electrode coating may be 0.05-0.1 mm, for example, may be 0.06 mm.
  • FIG. 6 is a side view of a heating component provided by an embodiment of the application.
  • At least one surface of the substrate 61 is also coated with a protective layer 64, and the protective layer 64 covers the heating element 62 and the first electrode 63a and the second electrode 63b, so as to prevent the e-liquid formed when heating tobacco from damaging the first electrode 63a, the first electrode 63a and the second electrode 63b.
  • the two electrodes 63b and the heating element 62; further, the protective layer 64 can also cover the entire substrate 61, so that the entire heating element 60 has a smooth surface.
  • the protective layer 64 may specifically be a glass glaze layer.
  • the substrate 61 and the heating element 62 are arranged to heat the tobacco through the heating element 62; meanwhile, the heating element 62 is embedded in the substrate 61, which can effectively improve the strength of the heating element 60, so that the During the process of inserting the tobacco, the heating element 60 can be stressed through the substrate 61, which effectively avoids the problem of bending or breaking of the heating element 62 due to the stress; and compared with the existing screen printing or coating on the substrate resistance heating Circuit, the substrate 61 and the heating element 62 of the present application can be directly and independently inserted into the aerosol-forming matrix 67, and there is no problem that the heating element 62 falls off from the substrate 61 after high temperature heating or when the substrate 61 is deformed, resulting in failure.
  • the reliability of the heating element 60 is improved; in addition, by arranging the first electrode 63a and the second electrode 63b, and making at least one electrode of the first electrode 63a and the second electrode 63b from the first end M of the substrate 61 to the second The end N extends so that one of the first electrode 63a and the second electrode 63b is electrically connected to the first connection end E of the heating body 62, and the other electrode is electrically connected to the second connection end F of the heating body 62,
  • the heating body 62 forms a current loop; in addition, by providing the protective layer 64, the first electrode 63a, the second electrode 63b and the heating body 62 can be effectively prevented from being damaged by the e-liquid formed when heating tobacco.
  • FIG. 7 is a schematic structural diagram of a heating component provided by the second embodiment of the application; a heating component 60 is provided, which is different from the heating component 60 provided in the first embodiment above in that, Three heating elements 62 are connected in series to form a heating element, and only one of the first electrodes 63a and the second electrodes 63b extends from the first end M of the substrate 61 to the position near the second end N of the substrate 61 .
  • the first electrode 63a may extend from the first end portion M of the substrate 61 to a position close to the second end portion N of the substrate 61, and the second electrode 63b is disposed on the first end portion M of the substrate 61 ( 7), the following embodiment is taken as an example; of course, the second electrode 63b may also extend from the first end M of the substrate 61 to the position near the second end N of the substrate 61, and the first electrode 63a It is provided at the first end portion M of the substrate 61 .
  • the first connection end E is connected to form an integral bending heating element; one end of the heating element is connected to the first electrode 63a, and the other end is connected to the second electrode 63b to form a whole current loop.
  • the first electrode 63a and the second electrode 63b can also both extend to a position close to the second end N of the substrate 61, which is not limited in this embodiment, as long as one end of the heating element It suffices to connect to the first electrode 63a, and to connect the other end to the second electrode 63b.
  • the heating element 60 provided in this embodiment can not only effectively improve the strength of the heating element 60 , but also enable the heating element 60 to receive force through the substrate 61 during the process of inserting tobacco. , the problem of bending of the heating body 62 due to force is effectively avoided; at the same time, it is not necessary to extend the second electrode 63b to the position of the substrate 61 close to the second end N, the process is simpler, the cost is lower, and at least two Each heating element 62 is connected to form an integral heating element to be connected with the first electrode 63a and the second electrode 63b, which can avoid the problem of failure of some heating elements 62 due to poor contact with the first electrode 63a and/or the second electrode 63b.
  • FIG. 8a is a schematic structural diagram of a heating component provided by the third embodiment of the present application; what is different from the heating component 60 provided by the first and second embodiments above is a heating body 62 It extends along the longitudinal direction of the substrate 61 .
  • one of the first electrode 63 a and the second electrode 63 b is disposed on the substrate 61 and extends from the first end portion M to a position close to the second end portion N, and is connected to the second connection end of the heating element 62 F is electrically connected, and the other electrode is arranged at the first connection end E of the heating element 62 .
  • the heating element 62 extends from the first end portion M of the substrate 61 to a position close to the second end portion N, which may be in the shape of a long strip, and the heating element 62 is close to the first end portion.
  • the part M is formed as the first connection end E of the heating body 62
  • the part of the heating body 62 close to the second end N is formed as the second connection end F of the heating body 62 .
  • the first electrode 63 a extends from the first end M of the substrate 61 to the position of the second end N of the substrate 61 , so as to be in line with the first end of the heating element 62 .
  • FIG. 8b is a side view of the heating assembly provided by the fifth specific embodiment of the application; the position of the heating body 62 corresponding to the second electrode 63b is lower than the surface of the substrate 61 to form a groove, The second electrode 63b is specifically formed in the groove.
  • the first electrode 63a may specifically include a first electrode part 63a 1 and a second electrode part 63a 2 that are vertically disposed, wherein the first electrode part 63a 1 is disposed on the substrate 61
  • the side surface connected to the first surface C extends from the first end portion M of the substrate 61 to a position close to the second end portion N, and the second electrode portion 63a 2 and the first electrode portion 63a 1 are close to the second end portion
  • One end of the portion N is electrically connected, and is disposed on the first surface C of the substrate 61 near the second end portion N, so as to be electrically connected to the second connecting end F.
  • the heating element 62 includes a first heating area A and a second heating area B connected to the first heating area A, wherein the first heating area A is the main atomization area where tobacco is inserted for heating , the atomization temperature on it is concentrated at 280 ° C to 350 ° C, accounting for more than 75% of the area of the atomization area, the second heating area B is the main matching section of the heating body 62, and the temperature is below 150 ° C;
  • the second electrode 63b is specifically arranged in the second heating area B of the heating element 62 to reduce the atomization temperature of the heating element 62 made of ceramic; The ratio of the heating temperature of the two heating zones B is greater than 2.
  • the resistivity of the material of the part of the heating element 62 located in the second heating area B is smaller than the resistivity of the material of the part of the heating element 62 located in the first heating area A, so that the first heating element of the heating element 62 is heated.
  • the temperature of zone A is greater than the temperature of the second heating zone B; at the same time, by setting materials with different resistivities in different heating zones, the temperature of different heating zones can be regulated by the difference in resistivity; specifically, the heating element 62 is located in the first heating zone.
  • the part of the area A and the part of the heating element 62 located in the second heating area B have basically the same main components and are integrally formed, but the part of the heating element 62 located in the first heating area A and the part of the heating element 62 located in the second heating area B.
  • the proportion of the ceramic material in the parts is different or other components are different, so that the part of the heating element 62 located in the first heating area A and the part of the heating element 62 located in the second heating area B have different resistivities.
  • the first heating area A and the second heating area B use different conductive materials, such as aluminum film and gold film, and the scheme of splicing the two different conductive materials can effectively avoid the occurrence of the heating body 62 .
  • the problem that the conductors of the first heating area A and the second heating area B are broken.
  • FIG. 9 is a side view of the heating assembly provided by the sixth specific embodiment of the application; in order to ensure the bonding force between the heating body 62 and the substrate 61 , the If the accommodating groove 611 is dropped, a support boss 65 that is smaller than the thickness of the heating element 62 in the thickness direction of the heating element 62 can be provided on the inner side wall of the accommodating groove 611 close to the second surface D of the substrate 61 to support The specific structure of the heating body 62 can be seen in FIG. 9 .
  • the thickness H of the heating body 62 may be 0.4-0.5 mm, for example, 0.4 mm; the resistance may be 0.3-1 ohm, specifically 0.6 ohm, and the resistivity may be 1*10 -4 -3*10 -4 ohms, for example, it can be 2*10 -4 ohms; the power used can be 1 watt-3 watts, specifically 2.5 watts.
  • the aerosol forming matrix 67 is inserted into at least part or all of the first heating area A of the heating element 62 of the substrate 61 ; of course, in other embodiments, the substrate 61 corresponds to the heating element 62
  • the aerosol-forming substrate 67 may also be inserted into a part of the second heat generating region B.
  • the heating element 60 provided in this embodiment has the first electrode 63a extending to the position of the substrate 61 close to the second end N so as to be compatible with the second electrode 62 of the heating element 62 .
  • the connection end F is electrically connected; by directly setting the second electrode 63b on the first connection end E of the heating body 62, while ensuring the effective connection of the two, the first connection end E of the heating body 62 is connected to the second connection A current loop is formed between the terminals F; wherein, by arranging the first electrode portion 63a 1 of the second electrode 63b on one side of the substrate 61, while preventing the short circuit problem between the first electrode portion 63a 1 and the heating body 62, The utilization rate of the surface of the substrate 61 is effectively improved.
  • FIG. 10 is a schematic structural diagram of a heating component provided in a fourth embodiment of the present application; different from the third embodiment described above, the first electrode portion 63a 1 is entirely disposed on the substrate 61 The first surface C is electrically connected to the second electrode portion 63a 2 disposed on the substrate 61 near the second end portion N, so as to realize electrical connection with the second connection end F of the heating body 62; specifically, in this implementation In the example, the second electrode 63b is also disposed on the first connection end E of the heating element 62 .
  • the heating component 60 provided in this embodiment can not only ensure the first electrode 63a and the The second electrode 63b connects the heating element 62, and while ensuring that the first electrode part 63a1 and the heating element 62 do not have a short circuit problem, it can prevent the e-liquid formed when heating tobacco from penetrating into the first electrode part under the action of gravity 63a 1 and the side surface of the substrate 61, thereby affecting the bonding force of the two; and effectively ensure the bonding strength between the second electrode portion 63a 2 and the substrate 61; In addition, this can further reduce the volume of the heating element 60.
  • FIG. 11 is a side view of the heating component provided by the seventh specific embodiment of the application; in order to ensure the bonding force between the heating body 62 and the substrate 61 , the When the accommodating groove 611 of the base plate 61 falls, a support boss 65 can be provided on the inner wall surface of the accommodating groove 611 of the heating body 62 to support the heating body 62.
  • the boss 65 can be integrally formed with the base plate 61 to provide supporting strength.
  • FIG. 12 is a schematic structural diagram of an electronic atomization device provided by an embodiment of the application; in this embodiment, an aerosol forming device 600 is provided, and the aerosol forming device 600 includes a casing 601 and a set of The heat generating component 60 , the mounting base 70 and the power supply component 80 in the housing 601 .
  • the heating component 60 may specifically be the heating component 60 provided in any of the above-mentioned embodiments, and its specific structure and function can be found in the above-mentioned related text description, which will not be repeated here; and is fixedly installed on the inner wall surface of the housing 601 through the mounting seat 70; the power supply component 80 is connected to the heating component 60 for supplying power to the heating component 60; and in one embodiment, the power supply component 80 can specifically be a rechargeable lithium ion battery.
  • the specific structure of the heating component 60 mounted on the mounting seat 70 can be referred to the above-mentioned FIGS. 1a , 7 , and 8a ; specifically, referring to FIG. Insert into the mounting hole 72 of the mounting seat 70 to be fixed with the mounting seat 70 ; the part of the substrate 61 without the heating element 62 is inserted into the mounting hole 72 of the mounting seat 70 .
  • the second heating area B of the heating element 60 is inserted into the mounting hole 72 of the mounting seat 70 to be fixed with the mounting seat 70; and after the tobacco is inserted, the end of the tobacco The portion is in contact with the upper surface of the mounting seat 70 .
  • the side wall of the mounting hole 72 is provided with an escape groove, and the electrode lead 66 extends into the mounting seat 70 through the escape groove to connect with the first electrode 63a and the second electrode 63b.
  • the mounting body 71 is further provided with at least two clamping portions 73 , and the mounting seat 70 is specifically fixed to the housing 601 of the aerosol forming device 600 through the clamping portions 73 .
  • one side of the mounting body 71 may further be provided with an extension groove 74 communicating with the mounting hole 72 , and the extension groove 74 may be specifically provided on the side surface of the second end portion N away from the base plate 61 , and
  • the shape of the extension slot 74 is the same as that of the part of the heating element 60 for inserting into the mounting seat 70 .
  • the shape of the extension slot 74 is also a rectangle.
  • the extension groove 74 matches the size of the portion of the heating element 60 for inserting into the mounting seat 70 , so that the portion of the heating element 60 inserted into the mounting seat 70 is reinforced through the extending groove 74 to prevent it from breaking.
  • the mounting base 70 is provided with two extending grooves 74 , and the two extending grooves 74 are intersected and vertically arranged.
  • the material of the mounting seat 70 can be an organic or inorganic material with a melting point higher than 160 degrees, for example, can be PEEK material; High temperature resistant glue.
  • a heating element 60 is provided, and the heating element 60 is provided with a substrate 61 and a heating body 62 to heat the tobacco through the heating body 62; at the same time, the heating body 62 is embedded in the substrate 61. It can effectively improve the strength of the heating element 60, so that the heating element 60 can be stressed through the substrate 61 during the process of inserting the tobacco, which effectively avoids the problem of the heating body 62 being bent due to the force; There is a resistance heating circuit formed by silk screen printing or coating on the substrate.
  • the substrate 61 and the heating element 62 of the present application can be directly and independently inserted into the aerosol forming matrix 67, and the heating element 62 will not appear from the substrate 61 during high temperature heating.
  • the first end portion M extends toward the second end portion N, so that one of the first electrode 63a and the second electrode 63b is electrically connected to the first connection end E of a heating element 62, and the other electrode is electrically connected to the heating element 62
  • the second connection end F of the radiator is electrically connected, so that the heating element 62 forms a current loop, which can not only avoid the short circuit problem, but also the process is relatively simple, and the strength of the heating element 60 is high.

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Abstract

一种发热组件（60）及气溶胶形成装置（600）。发热组件（60）包括基板（61）、至少一发热体（62）、第一电极（63a）和第二电极（63b）；基板（61）用于至少部分***气溶胶形成基质（67）内，且基板（61）具有第一端部（M）和第二端部（N）；至少一发热体（62）嵌设于基板（61）内，且发热体（62）具有第一连接端（E）和与第一连接端（E）相对的第二连接端（F）；第一电极（63a）和第二电极（63b）中的至少一个电极从第一端部（M）向第二端部（N）延伸，且第一电极（63a）和第二电极（63b）的其中一个电极与第一连接端（E）电连接，另一个电极与第二连接端（F）电连接；至少一发热体（62）用于***气溶胶形成基质（67）内且通过第一电极（63a）与第二电极（63b）供电而发热。发热组件（60）能够避免出现经过高温发热时发热体（62）从基板（61）上脱落而导致失效的问题，大大提高了发热组件（60）的可靠性。

Description

发热组件及气溶胶形成装置 【技术领域】
本发明涉及加热不燃烧发烟设备技术领域，尤其涉及一种发热组件及气溶胶形成装置。
【背景技术】
电子烟作为香烟替代品，因其具有使用安全、方便、健康、环保等优点，而越来越受到人们的关注和青睐；比如，加热不燃烧电子烟，亦称为加热不燃烧气溶胶形成装置。
现有的加热不燃烧气溶胶形成装置，其加热方式通常为管式***加热或中心嵌入加热；管式***加热是指加热管围绕于气溶胶形成基质(例如烟草)外以对气溶胶形成基质进行加热，中心嵌入加热是将发热组件***气溶胶形成基质内以对气溶胶形成基质进行加热。其中，发热组件因其制造简单、使用方便等特点而被广泛应用。目前的发热组件主要采用陶瓷或经绝缘处理的金属作基底，然后在基底上印刷或镀膜电阻发热线路，并经高温处理后使电阻发热线路固定在基底上而形成。
然而，由于现有发热组件上的电阻发热线路是后期印刷或镀膜在基底上的一层薄膜，在多次将发热组件***气溶胶形成基质的使用过程中，因基底的弯曲形变，该电阻发热线路经过高温发热时，容易从基底上脱落，稳定性差，且在发热过程中，由于电阻发热线路仅与基底设置有电阻发热线路的一面的气溶胶形成基质接触而不与基底背面的气溶胶形成基质接触，从而导致对气溶胶形成基质的加热均匀性较差。
【发明内容】
本申请提供一种发热组件及气溶胶形成装置，该发热组件能够解决现有发热组件上的电阻发热线路经过高温发热时，容易从基底上脱落，稳定性较差，且在发热过程中，电阻发热线路对气溶胶形成基质的加热均匀性较差的问题。
为解决上述技术问题，本申请采用的一个技术方案是：提供一种发热组件，该发热组件包括基板、至少一发热体、第一电极和第二电极；其中，基板用于至少部分***气溶胶形成基质内，且基板具有第一端部和第二端部；至少一发热体嵌设于基板内，且发热体具有第一连接端和与第一连接端相对的第二连接端；第一电极和第二电极中的至少一个电极从第一端部向第二端部延伸，且第一电极和第二电极的其中一个电极与第一连接端电连接，另一个电极与第二连接端电连接；其中，至少一发热体用于***气溶胶形成基质内且通过第一电极与第二电极供电而发热。
为解决上述技术问题，本申请采用的另一个技术方案是：提供一种气溶胶形成装置，该气溶胶形成装置包括壳体和设置在壳体内的发热组件和电源组件；其中，电源组件与发热组件连接，用于向发热组件供电，发热组件为上述所涉及的发热组件。
本申请提供的发热组件及气溶胶形成装置，该发热组件通过设置基板和发热体，以通过发热体对气溶胶形成基质进行加热；同时将发热体嵌设于基板内，能够有效提高发热组件的强度，使得发热组件在***气溶胶形成基质的过程中，能够通过基板受力，有效避免了发热体因受力而导致弯折的问题；且相 比于现有丝印或镀膜在基底上而形成的电阻发热线路，本申请的基板和发热体能够直接、独立地***气溶胶形成基质，且不会出现经过高温发热时发热体从基板上脱落而导致失效的问题，大大提高了发热组件的稳定性；另外，通过设置第一电极和第二电极，并使第一电极与第二电极的至少一个电极从基板的第一端部向第二端部延伸，以使第一电极和第二电极中的其中一个电极与发热体的第一连接端电连接，另一个电极与发热体的第二连接端电连接，从而使得发热体形成电流回路，这样不仅能够避免发生短路问题，且工艺较为简单，发热组件的强度较高。
【附图说明】
图1a为本申请第一实施例提供的发热组件的结构示意图；
图1b为本申请一实施例提供的发热组件***气溶胶形成基质的示意图；
图2为本申请一实施例提供的图1a所示发热组件的产品尺寸示意图；
图3为本申请另一实施例提供的图1a所示发热组件的产品尺寸示意图；
图4a为本申请第一具体实施例提供的发热组件的侧视图；
图4b为本申请第二具体实施例提供的发热组件的侧视图；
图4c为本申请第三具体实施例提供的发热组件的侧视图；
图5为本申请第四具体实施例提供的发热组件的侧视图；
图6为本申请一实施例提供的发热组件的侧视图；
图7为本申请第二实施例提供的发热组件的结构示意图；
图8a为本申请第三实施例提供的发热组件的结构示意图；
图8b为本申请第五具体实施例提供的发热组件的侧视图；
图9为本申请第六具体实施例提供的发热组件的侧视图；
图10为本申请第四实施例提供的发热组件的结构示意图；
图11为本申请第七具体实施例提供的发热组件的侧视图；
图12为本申请一实施例提供的气溶胶形成装置的结构示意图。
【具体实施方式】
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅是本申请的一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
本申请中的术语“第一”、“第二”、“第三”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”、“第三”的特征可以明示或者隐含地包括至少一个该特征。本申请的描述中，“多个”的含义是至少两个，例如两个，三个等，除非另有明确具体的限定。本申请实施例中所有方向性指示(诸如上、下、左、右、前、后……)仅用于解释在某一特定姿态(如附图所示)下各部件之间的相对位置关系、运动情况等，如果该特定姿态发生改变时， 则该方向性指示也相应地随之改变。此外，术语“包括”和“具有”以及它们任何变形，意图在于覆盖不排他的包含。例如包含了一系列步骤或单元的过程、方法、***、产品或设备没有限定于已列出的步骤或单元，而是可选地还包括没有列出的步骤或单元，或可选地还包括对于这些过程、方法、产品或设备固有的其它步骤或单元。
在本文中提及“实施例”意味着，结合实施例描述的特定特征、结构或特性可以包含在本申请的至少一个实施例中。在说明书中的各个位置出现该短语并不一定均是指相同的实施例，也不是与其它实施例互斥的独立的或备选的实施例。本领域技术人员显式地和隐式地理解的是，本文所描述的实施例可以与其它实施例相结合。
下面结合附图和实施例对本申请进行详细的说明。
请参阅图1a至图3，其中，图1a为本申请第一实施例提供的发热组件的结构示意图；图1b为本申请一实施例提供的发热组件***气溶胶形成基质的示意图；图2为本申请一实施例提供的图1a所示发热组件的产品尺寸示意图；图3为本申请另一实施例提供的图1a所示发热组件的产品尺寸示意图；在本实施例中，提供一种发热组件60，该发热组件60具体用于***并加热气溶胶形成基质67，比如，在一具体实施例中，该发热组件60具体可用于***烟草以对烟草进行加热，以下实施例均以此为例；可以理解的是，在该实施例中，气溶胶形成基质67具体可为烟草；其中，发热组件60***气溶胶形成基质67的示意图可参见图1b。
具体的，参见图1a，该发热组件60包括基板61、至少一发热体62及第一电极63a和第二电极63b。其中，基板61用于至少部分***气溶胶形成基质67内，且具有第一端部M和与第一端部M相对的第二端部N；至少一发热体62用于在***烟草后对烟草进行加热，且发热体62具体嵌设在基板61内，以利用基板61有效提高发热组件60的强度，使得发热组件60在***烟草的过程中，能够通过基板61受力，有效避免了发热体62因受力而导致弯折或断裂的问题；同时，相比于现有丝印或镀膜在基底上而形成的电阻发热线路，本申请的基板61和发热体62能够直接、独立地***气溶胶形成基质67，且不会出现经过高温发热时发热体62从基板61上脱落而导致失效的问题，大大提高了发热组件60的可靠性。在具体实施例中，基板61对应至少部分发热体62的位置***气溶胶形成基质67内。
具体的，发热体62具有第一连接端E和第二连接端F，第一电极63a和第二电极63b中的至少一个电极从第一端部M向第二端部N延伸，以使第一电极63a和第二电极63b中的其中一个电极与发热体62的第一连接端E电连接，另一个电极与发热体62的第二连接端F电连接，从而使得发热体62形成电流回路，相比于现有技术中在基底上丝印或镀膜形成电阻发热膜层的方式，发热体62嵌于基板61内，一方面可增加发热体62厚度，使其不因基板61形变而随之变形或损坏，另一方面使基板61相对的两表面都靠近发热体62，使得两表面的热量更为均匀。
在一具体实施例中，第一电极63a和第二电极63b中的至少一个电极从第一端部M延伸至靠近第二端部N的位置。当然，在其它实施例中，第一电极63a和第二电极63b也可位于靠近第一端部M的位置，或者处于基板61的中间位置，具体可根据发热体62的设置位置及串联/并联形式进行设计，本实施例对此并不加以限制。
具体的，基板61具体可为一长方形基板61，当发热组件60***烟草的过程中，基板61的第二端部N先***烟草，因此，为方便发热组件60***烟草内，基板61的第二端部N具体可设置为尖端，即，呈三角形结构，且尖端的相邻两条边所形成的夹角α 1具体可呈45度-90度，例如60度。具体的，在该实施例中，尖端的两条边与基板61侧边的连接处呈一弧度，且该弧度所对应的半径R 1可为1-3毫米，具体可为1毫米。
具体的，基板61可为绝缘陶瓷基板，绝缘陶瓷基板的导热系数可为4-18W/(m.k)，抗弯强度可在600MPa以上，热稳定性可超过450度，耐火性能可高于1450度。当然，在其它实施例中，基板61还可以是设置有绝缘涂层的金属基板例如不锈钢，以在提高发热组件60强度，防止发热组件60弯曲或断裂的同时，能够使发热体62产生的热量扩散至与基板61接触的烟草上，进而提高烟草的受热均匀性。基板61的材质在一实施方式中可以是氧化锆材料，该氧化锆基板61能够对发热体62产生的热量进行保温与传热，以提供发热组件60的能量利用率。在其他实施方式中，绝陶瓷基板还可是ZTA材料(增韧氧化锆)、MTA(莫来石与氧化铝复合体)等陶瓷。在其他实施方式中，发热体62也可以金属合金制成或者铁硅铝合金制成的陶瓷合金。
在具体实施例中，同时参照图2，基板61沿其长度方向可开设有至少一容置槽611，发热体62具体容置在该容置槽611内，以在发热组件60***烟草的过程中，通过基板61受力，避免发热体62直接受力而导致弯折的问题发生。具体的，可通过激光按照预设尺寸对基板61进行切割以形成容置槽611，从而保证容置槽611的尺寸精度，且容置槽611距离基板61的两侧边缘的距离相同，即，容置槽611沿着基板61的宽度方向居中设置。在具体实施例中，可在制造时，在容置槽611的内侧壁上涂覆玻璃陶瓷材料以将基板61与发热体62粘结在一起，然后将绝缘陶瓷、玻璃陶瓷及电极共同烧结，由于玻璃陶瓷粘度较高，进而能够有效提高发热体62与基板61之间的结合力，并增强使用稳定性；具体的，涂覆厚度具体可为0.05-0.1毫米，比如可为0.05毫米。
具体的，参见图2，在一个实施例中，基板61沿其长度方向可开设有三个间隔设置的容置槽611，间隔距离L34具体可为2-3毫米，比如可为2.90毫米；具体的，容置槽611的横截面具体可为条形且呈弯折状或弯曲状，比如呈类似V字型(参见图2)或一字型结构(见下图8a)；具体的，形成于其中或设置于其中的发热体62对应于容置槽611的形状也呈弯折状或弯曲状，具体的，当容置槽611呈类似V字型结构时，发热体也呈类似V字型的结构，当容置槽611呈一字型结构时，发热体也呈一字型结构，即，发热体62的形状与容置槽611的形状匹配；在具体实施例中，该V字型的发热体62，其V型底部朝向于第一端部M且底部位置的电阻较大，符合发热体62自身热量从下往上扩散的设计，从而使得发热体62整体温度较为均匀。可以理解的是，容置槽611的横截面形状不限，可以根据发热体62形状进行设计。
在一具体实施例中，开设有类似V字型容置槽611的基板61的尺寸具体可参见图2和图3；具体的，基板61的长度L31具体可为10-15毫米，比如可为13.20毫米，宽度W31可为4-6毫米，比如可为5毫米；开设在该基板61内的V字型容置槽611的长度L35可为3-4毫米，比如可为3.00毫米，对应的有效长度为4.2毫米，厚度可为0.3-0.6毫米，比如可为0.5毫米，内圈边缘中部所形成的弧度其所 对应的半径R 2可为0.5-1毫米，比如可为0.75毫米，外圈边缘中部所形成的弧度其所对应的半径R 3可为0.5-1毫米，比如可为0.75毫米，内壁圆角R 4半径可为0.2-0.5毫米，比如可为0.25毫米，外侧圆角R 5半径可为1-2毫米，比如可为1毫米,内圈边缘的底部至外圈边缘的底部的距离W32可为1-2毫米，比如可为1.15毫米，内圈边缘的底部至内圈边缘的顶部的距离W33可为0.5-1毫米，比如可为0.82毫米，内圈边缘的底部至基板61的第二端部N的顶部的距离L32可为3-4毫米，比如可为3.94毫米，外圈边缘所形成的弧度α 2可为45°-90°，比如，90°；需要说明的是，上述将V字型容置槽611的内凹部定义为内圈边缘，外凸部定义为外圈边缘。
具体的，基板61具有第一表面C和与第一表面C相背设置的第二表面D，容置槽611具体可为贯穿第一表面C和第二表面D的通槽，发热体62具体容置在该通槽中，且在一实施例中，加热体62具有第一加热表面和与第一加热表面相对的第二加热表面，在具体实施例中，容置在该容置槽611内的发热体62的第一加热表面和第二加热表面与基板61的第一表面C和第二表面D平齐；其中，通过将容置槽611设置成通槽结构，能够使容置在该容置槽611内的发热体62分别从基板61的第一表面的一侧和第二表面的一侧露出，进而使该发热体62***烟草后发热体62的两个表面均可与烟草直接接触，不仅能量利用率高，且加热较为均匀，预设的温度场边界清楚，特别是低压启动便于功率即时控制和设计。可以理解，容置槽611也可以为盲槽或盲孔。
在其他实施方式中，可以根据对加热时温度场分部的实际需要，发热体62的第一加热表面和第二加热表面也可分别略微凸出于基板61的第一表面C及第二表面D或者分别略微凹陷于第一表面C和第二表面D；这样在发热体62的第一加热表面和第二加热表面凸出于基板61的第一表面C和第二表面D时，能够使发热体62较高的温度集中于发热体62的第一加热表面和第二加热表面并且以较高温度烘烤其第一加热表面和第二加热表面接触的烟草，从而使烟气满足较为强烈的需求；而在发热体62的第一加热表面和第二加热表面略微凹陷于(即低于)基板61的第一表面C和第二表面D时，由于基板61的阻隔效果，能够使发热体62的第一加热表面和第二加热表面与烟草接触较为松弛，可稍微降低发热体62对烟草的烘烤温度，从而满足烟气较为柔和的需求。
其中，发热体62具体可为一个或多个；且在一具体实施例中，该发热体62可为自支撑结构，即，该发热体62能够独立存在，无需依附其它载体而存在；该自支撑结构的发热体62相比于现有印刷或镀膜在基底上而形成的电阻发热线路，能够有效避免出现发热体62经过高温发热或基板61形变时从基板61脱落的问题，大大提高了发热组件60的可靠性；且由于该发热体62为自支撑结构，且可以同时从基板61的第一表面的一侧和第二表面的一侧露出，有效提供了热量利用率及加热均匀性。
具体的，发热体62的形状不限，可以根据需要设计。在一具体实施例中，发热体62可以为条状并沿着基板61的宽度方向延伸，且呈弯折状或弯曲状。在一具体实施例中，条状的发热体62中间形成弯曲部或弯折部，且弯曲部或弯折部的夹角可以大于45度，例如，可以为90度，120度或145度。
具体的，发热体62的材质具体可为导电陶瓷，相比于现有的金属材质，该导电陶瓷材质的发热体62导电效率较高，发热产生的温度较为均匀：且该导电陶瓷制成的发热体62可在3-4瓦调节和设计，导电率可达1*10 -4欧姆-1*10 -6欧姆，具体可为5*10 -5欧姆，适合于低压启动便于功率即时控制和设计， 且导电陶瓷抗弯强度可大于40MPa，耐火性能可高于1200℃；同时该导电陶瓷制成的发热体62具有全程启动电压的特性。
具体的，该导电陶瓷制成的发热体62，其材料可选电磁发热波长为中红外波长，有利于雾化烟油并提升口感；另外，该导电陶瓷制成的发热体62的晶相结构为高温稳定型的氧化物陶瓷，由于氧化物陶瓷耐疲劳性较好，强度较高，密度较大，从而能够有效避免出现有害重金属挥发及粉尘问题，大大提高了发热体62的使用寿命。
上述采用陶瓷整片制成发热体62，能够减少最高温度热点面积，消除了疲劳开裂和疲劳电阻增大的风险，具有较好的一致性；且由于该陶瓷发热材料的高强度及微晶结构所带来的光滑度，该发热体62表面较易清洁、不易粘附；另外，采用陶瓷生产工艺制作陶瓷材质的发热体62，工艺较为简单且方便控制，成本较低，有利于生产化的推广和经济效益的提高。
具体的，该导电陶瓷制成的发热体62具体包括主要成分及晶体成分；其中，主要成分用于导电并使导电陶瓷形成一定的电阻，其具体可为锰、锶、镧、锡、锑、锌、铋、硅、钛中的一种或多种；晶体成分，即，陶瓷材料的主料，主要用于形成导电陶瓷的形状及结构，其具体可为锰酸镧、锰酸锶镧、氧化锡、氧化锌、氧化锑、氧化铋、氧化硅、氧化钇中的一种或多种。在其他实施方式中，发热体62也可以金属合金制成或者铁硅铝合金与陶瓷混合制成的陶瓷合金。
具体的，上述导电陶瓷为具有TCR特性的材料，即，温度与阻值具有对应关系，因此在使用过程中可以通过检测阻值来获取温度值，以控制发热体62的温度。
其中，第一电极63a和第二电极63b可采用涂覆的方式形成；具体的，在一实施例中，第一电极63a和第二电极63b均设置在基板61上并与发热体62电连接；且在一具体实施例中，第一电极63a直接形成于基板61表面，比如，形成于基板61的第一表面63a或第二表面63b；在另一具体实施例中，基板61上开设有两个相对设置的凹槽，第一电极63a和第二电极63b分别形成于两个凹槽内，并分别与发热体62的第一连接端E和第二连接端F电连接。
在一具体实施例中，参见图4a，图4a为本申请第一具体实施例提供的发热组件的侧视图；第一电极63a和第二电极63b分别包括第一部分和第二部分；其中，第一电极63a和第二电极63b中的至少一个电极的第一部分形成与基板的表面，第二部分形成发热体62的表面；进一步地，基板61对应电极的第一部分的位置设置有第一凹槽，电极的第一部分设置于第一凹槽内；发热体62对应电极的第二部分的位置设置有第二凹槽，电极的第二部分设置于第二凹槽内。且在具体实施例中，电极的第一部分的厚度与第一凹槽的深度相同，电极的第二部分的厚度与第二凹槽的厚度相同。
进一步地，在一具体实施例中，参见图4b，图4b为本申请第二具体实施例提供的发热组件的侧视图；具体的，第一电极63a和第二电极63b还包括第三部分，第一电极63a和第二电极63b中的至少一个电极的第三部分延伸至发热体62的与基板61抵接的侧表面。
在另一实施例中，第一电极63a和第二电极63b中的一个电极设置在基板61上，另一个电极设置在发热体62上；且设置在发热体62上的电极也可直接形成与发热体62的表面或设置在发热体62的凹槽内并与发热体62电连接。具体的，上述通过涂覆的方式在基板61和/或发热体62上形成第一电极63a 和第二电极63b，能够提高第一电极63a和第二电极63b与基板61和/或发热体62之间的结合力，从而提高连接至第一电极63a和第二电极63b上的电极引线66与发热体62之间的连接稳定性；可以理解的是，陶瓷具有微孔结构，陶瓷的微孔结构能够使得在涂覆厚度较大的情况下仍然使形成的第一电极63a和第二电极63b与基板61和/或发热体62之间的结合力较强，从而大大提高第一电极63a和第二电极63b与基板61和/或发热体62之间的结合力。具体的，上述涂覆材料可选用银浆。可以理解的是，也可以通过沉积金属膜的方式形成第一电极63a和第二电极63b，例如沉积金、铂、铜等高于1*10 -6欧姆的金属材料；涂覆的长度可为5-8毫米，比如可为6.5毫米，银极涂覆的厚度可为0.05-0.1毫米，比如可为0.06毫米。
在本实施方式中，以第一电极63a和第二电极63b均设置在基板61上为例；具体的，第一电极63a和第二电极63b设置在基板61的同一表面，例如设置在基板61的第一表面C或第二表面D上；在其他实施方式中，第一电极63a和第二电极63b也可以分别设置在两个表面上，比如，第一电极63a设置在第一表面C，第二电极63b设置第二表面D，具体可根据实际引线空间的需求进行选择。当然，在其他实施方式中，还可同时在基板61的两个表面都设置第一电极63a和第二电极63b，也就是第一电极63a、第二电极63b的数量均为两个；这样能够使得导电陶瓷的导电成分靠近导电陶瓷的两个表面均可以具有较短的电流路径，使发热体62两表面的温度场更均匀；同时，不仅方便焊接，且能够尽可能增加与导电陶瓷的发热体62的接触面积以减小接触电阻，从而在发热体62通电时产生较小的热量，降低温度，并且在导电陶瓷的发热体62的两个表面同时通电，两个表面形成相同电势，有利于使两个表面之间的导电成分电场均匀，发热效果更好。
在一实施例中，发热体62至少为两个，至少两个发热体62并联设置在第一电极63a和第二电极63b之间；由于该实施例中的至少两个发热体62采用多根并联式，可以使每根发热体62的尺寸较小，从而在基板61的容置槽611内可以无需另设支撑凸台65(见下图4c)来支撑每个发热体62，也可使发热体62与基板61之间具有较好的结合力；同时，这样能够使得整个发热体62的体积较小，从而节省电能，易于加工。具体的，第一电极63a和第二电极63b平行间隔设置且均从基板61的第一端部M延伸至第二端部N，三个发热体62沿着基板61长度方向平行且间隔设置与第一电极63a和第二电极63b之间，且每个发热体62的一端与第一电极63a电连接，另一端与第二电极63b电连接。在一具体实施例中，第一电极63a和第二电极63b的部分可涂覆在发热体62端部的表面，以实现发热体62与第一电极63a和第二电极63b的电连接。
当然，在其它实施例中，参见图4c和图5，其中，图4c为本申请第三具体实施例提供的发热组件的侧视图；图5为本申请第四具体实施例提供的发热组件的侧视图；容置槽611的内壁面上靠近基板61第二表面的位置也可设置支撑凸台65，发热体62具体搭接在该支撑凸台65远离基板61的第二表面的表面；具体的，在该实施例中，发热体62的厚度可小于基板61的厚度，且发热体62的一侧表面与基板61的第一表面C平齐，另一侧表面低于第二表面D，具体结构可参见图4c；当然，发热体62的厚度也可与基板61的厚度相同，且发热体62的相对两个表面分别与基板61的第一表面C与第二表面D平齐，同时，发热体62与支撑凸台65对应的位置设置有让位部，以使发热体62搭接在该支撑凸台65上， 进而防止发热体62从基板61的容置槽611内掉落，具体结构可参见图5。
具体的，参见图1a至图3，发热体62具体可为三个，三个发热体62沿着基板61的长度方向间隔设置，间隔距离L34可为2-3毫米，比如具体可为2.90毫米；且发热体62的第一连接端E和第二连接端F沿着基板61的宽度方向相对设置；具体的，三个发热体62具体容置在图2或图3所示基板61的容置槽611内，其对应结构及尺寸与图2和图3所示容置槽611的尺寸相同，具体可参见上述文字记载。在本实施例中，基板61至少对应发热体62的位置***气溶胶形成基质67。
具体的，在该实施例中，第一电极63a和第二电极63b均设置在基板61上，且均从基板61的第一端部M延伸至靠近第二端部N的位置；具体的，第一电极63a和第二电极63b位于发热体62的相对两侧，每个发热体62的第一连接端E和第二连接端F向基板61的两侧延伸以分别与第一电极63a和第二电极63b连接，从而形成电流回路，同时使各个发热体62之间并联设置。具体的，银极涂覆的厚度可为0.05-0.1毫米，比如可为0.06毫米。
在具体实施例中，参见图6，图6为本申请一实施例提供的发热组件的侧视图。基板61的至少一表面上还涂覆有保护层64，该保护层64覆盖发热体62以及第一电极63a和第二电极63b，以防止加热烟草时形成的烟油损坏第一电极63a、第二电极63b以及发热体62；进一步，该保护层64也可以覆盖整个基板61，从而使得整个发热组件60具有光滑的表面。其中，保护层64具体可为玻璃釉层。
本实施例提供的发热组件60，通过设置基板61和发热体62，以通过发热体62对烟草进行加热；同时将发热体62嵌设于基板61内，能够有效提高发热组件60的强度，使得发热组件60在***烟草的过程中，能够通过基板61受力，有效避免了发热体62因受力而导致弯折或断裂的问题；且相比于现有丝印或镀膜在基底上的电阻发热线路，本申请的基板61和发热体62能够直接、独立地***气溶胶形成基质67，且不会出现经过高温发热或基板61形变时发热体62从基板61上脱落而导致失效的问题，大大提高了发热组件60的可靠性；另外，通过设置第一电极63a和第二电极63b，并使第一电极63a与第二电极63b的至少一个电极从基板61的第一端部M向第二端部N延伸，以使第一电极63a和第二电极63b中的其中一个电极与发热体62的第一连接端E电连接，另一个电极与发热体62的第二连接端F电连接，从而使得发热体62形成电流回路；另外，通过设置保护层64，能够有效防止加热烟草时形成的烟油损坏第一电极63a、第二电极63b以及发热体62。
在另一实施例中，参见图7，图7为本申请第二实施例提供的发热组件的结构示意图；提供一种发热组件60，与上述第一实施例提供的发热组件60不同的是，三个发热体62串联形成一发热元件，且第一电极63a和第二电极63b中只有一个电极从基板61的第一端部M延伸至基板61靠近第二端部N的位置。在一具体实施例中，第一电极63a可从基板61的第一端部M延伸至基板61靠近第二端部N的位置，而第二电极63b设置在基板61的第一端部M(参见图7)，以下实施例以此为例；当然，也可以是第二电极63b可从基板61的第一端部M延伸至基板61靠近第二端部N的位置，而第一电极63a设置在基板61的第一端部M。
具体的，参见图7，在该实施例中，发热体62具体可为三个，且每相邻两个发热体62中的一个发热体62的第二连接端F和另一个发热体62的第一连接端E连接，以形成一整体的弯折型发热元件；该 发热元件的一端与第一电极63a连接，另一端与第二电极63b连接，以形成一整个电流回路。当然，在其它具体实施例中，第一电极63a和第二电极63b也可均延伸至靠近基板61的第二端部N的位置，本实施例对此并不加以限制，只要发热元件的一端与第一电极63a连接，另一端与第二电极63b连接即可。
本实施例提供的发热组件60，与上述第一实施例提供的发热组件60相比，不仅能够有效提高发热组件60的强度，使得发热组件60在***烟草的过程中，能够通过基板61受力，有效避免了发热体62因受力而导致弯折的问题；同时，无需将第二电极63b延伸至基板61靠近第二端部N的位置，工艺更加简单，成本较低，且将至少两个发热体62连接成一整体的发热元件以与第一电极63a和第二电极63b连接，能够避免出现部分发热体62与第一电极63a和/或第二电极63b接触不良而失效的问题发生。
在另一实施例中，参见图8a，图8a为本申请第三实施例提供的发热组件的结构示意图；与上述第一实施例和第二实施例提供的发热组件60不同的是发热体62沿着基板61的长度方向延伸。具体地，第一电极63a和第二电极63b中的其中一个电极设置在基板61上并从第一端部M延伸至靠近第二端部N的位置，且与发热体62的第二连接端F电连接，另一个电极设置在发热体62的第一连接端E。
具体的，在该实施例中，发热体62从基板61的第一端部M延伸至靠近第二端部N的位置，其具体可呈一长条形，且发热体62靠近第一端部M的部分形成为发热体62的第一连接端E，发热体62靠近第二端部N的部分形成为发热体62的第二连接端F。在一具体实施例中，第一电极63a和第二电极63b中第一电极63a从基板61的第一端部M延伸至基板61的第二端部N的位置，以与发热体62的第二连接端F电连接，第二电极63b设置在发热体62的第一连接端E。在一具体实施例中，参见图8b，图8b为本申请第五具体实施例提供的发热组件的侧视图；发热体62对应第二电极63b的位置低于基板61的表面从而形成凹槽，第二电极63b具体形成与该凹槽内。
具体的，在一具体实施例中，参见图8a，第一电极63a具体可包括垂直设置的第一电极部63a 1和第二电极部63a 2，其中，第一电极部63a 1设置在基板61的与第一表面C相连的一侧表面，并从基板61的第一端部M延伸至靠近第二端部N的位置，第二电极部63a 2与第一电极部63a 1靠近第二端部N的一端电连接，并设置于基板61的第一表面C且靠近第二端部N的位置，以与第二连接端F电连接。
具体的，在该实施例中，发热体62包括第一发热区A和与第一发热区A连接的第二发热区B，其中，第一发热区A为***烟草进行加热的主要雾化区域，其上的雾化温度集中在280℃到350℃，占雾化区域面积的75％以上，第二发热区B是发热体62的主要配合段，温度在150℃以下；在一具体实施例中，第二电极63b具体设置在发热体62的第二发热区B，以降低陶瓷制成的发热体62的雾化温度；具体的，发热体62的第一发热区A的发热温度与第二发热区B的发热温度的比值大于2。
在一具体实施例中，发热体62位于第二发热区B的部分的材料的电阻率小于发热体62位于第一发热区A的部分的材料的电阻率，以使发热体62的第一发热区A的温度大于第二发热区B的温度；同时，通过在不同的发热区设置不同电阻率的材料，以通过电阻率差异调控不同发热区的温度；具体的，发热体62位于第一发热区A的部分与发热体62位于第二发热区B的部分的陶瓷材料主体成分基本相同且一体成型，但发热体62位于第一发热区A的部分与发热体62位于第二发热区B的部分的陶瓷材料的比例不同或其它组分不同，从而使得发热体62位于第一发热区A的部分与发热体62位于第二发热区B 的部分的电阻率不同。相比于现有技术中，第一发热区A与第二发热区B采用不同的导电材料，例如铝膜和金膜，将两种不同的导电材料拼接的方案，能够有效避免出现发热体62的第一发热区A与第二发热区B的导电体断裂的问题。
在该实施例中，参见图9，图9为本申请第六具体实施例提供的发热组件的侧视图；为了保证发热体62与基板61之间的结合力，防止发热体62从基板61的容置槽611内掉落，可在容置槽611的靠近基板61的第二表面D的内侧壁上设置有在发热体62厚度方向上比发热体62厚度小的支撑凸台65，以支撑发热体62，具体结构可参见图9。具体的，在一实施例中，发热体62的厚度H具体可为0.4-0.5毫米，比如可为0.4毫米；电阻具体可0.3-1欧姆，具体可为0.6欧姆，电阻率可为1*10 -4-3*10 -4欧姆，比如可为2*10 -4欧姆；使用功率可为1瓦-3瓦，具体可为2.5瓦。
具体的，在本实施例中，基板61的至少对应发热体62的第一发热区A的部分或全部位置***气溶胶形成基质67；当然，在其他实施例中，基板61对应发热体62的第二发热区B的部分位置也可***气溶胶形成基质67。
本实施例提供的发热组件60，与上述第二实施例提供的发热组件60相比，通过使第一电极63a延伸至基板61靠近第二端部N的位置，以与发热体62的第二连接端F电连接；通过将第二电极63b直接设置在发热体62的第一连接端E上，以在保证二者有效连接的同时，使发热体62的第一连接端E和第二连接端F之间形成电流回路；其中，通过将第二电极63b的第一电极部63a 1设置在基板61的一侧面，以在防止第一电极部63a 1与发热体62发生短路问题的同时，有效提高基板61表面的利用率。
在另一具体实施例中，参见图10，图10为本申请第四实施例提供的发热组件的结构示意图；与上述第三实施例不同的是，第一电极部63a 1整个设置在基板61的第一表面C，并与设置在基板61靠近第二端部N位置的第二电极部63a 2电连接，从而实现与发热体62的第二连接端F电连接；具体的，在该实施例中，第二电极63b同样设置在发热体62的第一连接端E。
本实施例提供的发热组件60，与上述第三实施例提供的发热组件60相比，通过将第一电极部63a 1设置在基板61的第一表面C，不仅能够能够保证第一电极63a和第二电极63b将发热体62连通，且在保证第一电极部63a 1与发热体62不会发生短路问题的同时，能够避免加热烟草时形成的烟油在重力作用下渗透至第一电极部63a 1与基板61侧面之间的缝隙，进而影响二者的结合力；且有效保证了第二电极部63a 2与基板61之间的结合强度；另外，这样能够进一步降低发热组件60的体积。
具体的，在该实施例中，参见图11，图11为本申请第七具体实施例提供的发热组件的侧视图；为了保证发热体62与基板61之间的结合力，防止发热体62从基板61的容置槽611内掉落，可在发热体62的容置槽611的内壁面设置支撑凸台65，以支撑发热体62，具体结构可参见图11；在具体实施例中，支撑凸台65可与基板61一体成型，以提供支撑强度。
请参阅图12，图12为本申请一实施例提供的电子雾化装置的结构示意图；在本实施例中，提供一种气溶胶形成装置600，该气溶胶形成装置600包括壳体601和设置在壳体601内的发热组件60、安装座70和电源组件80。
其中，发热组件60具体可为上述任一实施例提供的发热组件60，其具体结构与功能可参见上述相 关文字描述，在此不再赘述；具体的，发热组件60设置在安装座70上，并通过安装座70固定安装在壳体601的内壁面上；电源组件80与发热组件60连接，用于向发热组件60供电；且在一实施例中，电源组件80具体可为可充电的锂离子电池。
具体的，发热组件60安装在安装座70上的具体结构可参见上述图1a、图7、图8a；具体的，参见图1a，安装座70包括安装主体71和安装孔72，发热组件60具体***安装座70的安装孔72中以与安装座70固定；基板61没有设置发热体62的部分***安装座70的安装孔72中。
具体的，当发热组件60为图8a所示结构时，发热组件60的第二发热区B***安装座70的安装孔72内，以与安装座70固定；且在***烟草后，烟草的端部与安装座70的上表面抵接。具体的，安装孔72的侧壁上设置有避让槽，电极引线66具体通过该避让槽伸入安装座70内以与第一电极63a和第二电极63b连接。进一步地，参见图8a，安装主体71上还设置有至少两个卡接部73，安装座70具体通过卡接部73以与气溶胶形成装置600的壳体601固定。
进一步地，参见图8a，安装主体71的一侧还可设置有与安装孔72连通的延伸槽74，该延伸槽74具体可设置在背离基板61的第二端部N的一侧表面，且该延伸槽74与发热组件60用于***安装座70内的部分的形状一致，比如，若发热组件60用于***安装座70内的部分的形状为矩形，则延伸槽74的形状也为矩形，且延伸槽74与发热组件60用于***安装座70内的部分的大小匹配，以通过该延伸槽74对***安装座70的发热组件60的部分进行加固，防止其断裂。在一具体实施例中，安装座70上设置有两个延伸槽74，两个延伸槽74交叉垂直设置。
具体的，安装座70的材料可采用熔点高于160度以上的有机或无机材料，例如，可以是PEEK材料；安装座70具体可通过粘合剂粘结在发热组件60上，粘结剂可为耐高温的胶水。
本实施例提供的气溶胶形成装置600，通过设置发热组件60，该发热组件60通过设置基板61和发热体62，以通过发热体62对烟草进行加热；同时将发热体62嵌设于基板61内，能够有效提高发热组件60的强度，使得发热组件60在***烟草的过程中，能够通过基板61受力，有效避免了发热体62因受力而导致弯折的问题；且相比于现有丝印或镀膜在基底上而形成的电阻发热线路，本申请的基板61和发热体62能够直接、独立地***气溶胶形成基质67，且不会出现经过高温发热时发热体62从基板61上脱落而导致失效的问题，大大提高了发热组件60的可靠性；另外，通过设置第一电极63a和第二电极63b，并使第一电极63a与第二电极63b的至少一个电极从基板61的第一端部M向第二端部N延伸，以使第一电极63a和第二电极63b中的其中一个电极与一发热体62的第一连接端E电连接，另一个电极与发热体62的第二连接端F电连接，从而使得发热体62形成电流回路，这样不仅能够避免发生短路问题，且工艺较为简单，发热组件60的强度较高。
以上所述仅为本申请的实施方式，并非因此限制本申请的专利范围，凡是利用本申请说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本申请的专利保护范围内。

Claims (20)

  1. 一种发热组件，其中，包括：
    基板，用于至少部分***气溶胶形成基质内，且所述基板具有第一端部和第二端部；
    至少一发热体，嵌设于所述基板内，且所述发热体具有第一连接端和与所述第一连接端相对的第二连接端；
    第一电极和第二电极，所述第一电极和所述第二电极中的至少一个电极从所述第一端部向所述第二端部延伸，且所述第一电极和所述第二电极的其中一个电极与所述第一连接端电连接，另一个电极与所述第二连接端电连接；其中，所述至少一发热体用于***所述气溶胶形成基质内且通过所述第一电极与所述第二电极供电而发热。
  2. 根据权利要求1所述的发热组件，其中，所述第一电极和所述第二电极中的至少一个电极形成于所述基板的表面并与所述发热体电连接。
  3. 根据权利要求2所述的发热组件，其中，所述第一电极和所述第二电极分别包括第一部分和第二部分，其中，所述第一电极和所述第二电极中的至少一个电极的第一部分形成于所述基板的表面，第二部分形成于所述发热体的表面。
  4. 根据权利要求2所述的发热组件，其中，所述基板对应所述电极的第一部分的位置设置有第一凹槽，所述电极的第一部分设置于所述第一凹槽内；所述发热体对应所述电极的第二部分的位置设置有第二凹槽，所述电极的第二部分设置于所述第二凹槽内。
  5. 根据权利要求4所述的发热组件，其中，所述电极的第一部分的厚度与所述第一凹槽的深度相同；所述电极的第二部分的厚度与所述第二凹槽的深度相同。
  6. 根据权利要求3所述的发热组件，其中，所述第一电极和所述第二电极还包括第三部分，所述第一电极和所述第二电极中的至少一个电极的第三部分延伸至所述发热体的与所述基板抵接的侧表面。
  7. 根据权利要求1所述的发热组件，其中，所述第一电极和所述第二电极中的至少一个电极从所述第一端部延伸至靠近所述第二端部的位置。
  8. 根据权利要求7所述的发热组件，其中，所述基板为绝缘陶瓷且所述基板上设置有容置槽；所述发热体为导电陶瓷且内嵌于所述容置槽内。
  9. 根据权利要求8所述的发热组件，其中，所述容置槽为贯穿所述基板的通槽，从而使得所述发热体从所述基板相对的两个表面暴露。
  10. 根据权利要求7所述的发热组件，其中，所述第一电极和所述第二电极均从所述基板的第一端部延伸至靠近所述第二端部的位置；所述发热体至少为两个，所述至少两个发热体沿所述基板的长度方向间隔设置，且所述至少两个发热体并联设置在所述第一电极和所述第二电极之间。
  11. 根据权利要求10所述的发热组件，其中，所述发热体为条形且呈弯折状或弯曲状。
  12. 根据权利要求7所述的发热组件，其中，所述第一电极和所述第二电极中只有一个电极从所述基板的第一端部延伸至靠近所述第二端部的位置；所述发热体至少为两个，所述至少两个发热体串联设 置在所述第一电极和所述第二电极之间。
  13. 根据权利要求7所述的发热组件，其中，所述第一电极和所述第二电极中只有所述第一电极从所述基板的第一端部延伸至靠近所述第二端部的位置；所述发热体从所述基板的第一端部延伸至靠近所述第二端部的位置。
  14. 根据权利要求13所述的发热组件，其中，所述第一电极包括垂直设置的第一电极部和第二电极部；其中，所述第一电极部设置在所述基板的与第一表面相连的一侧表面，并从所述基板的第一端部延伸至靠近所述第二端部的位置；所述第二电极部与所述第一电极部靠近所述第二端部的一端电连接，并设置于所述基板的第一表面且靠近所述第二端部的位置，以与所述第二连接端电连接；所述第二电极设置于所述发热体的第一连接端且与所述第一连接端电连接。
  15. 根据权利要求14所述的发热组件，其中，所述第二电极全部设置在所述发热体上，且所述发热体对应所述第二电极的位置低于所述基板的表面从而形成凹槽，所述第二电极形成于所述凹槽内。
  16. 根据权利要求15所述的发热组件，其中，所述发热体包括第一发热区和与所述第一发热区连接的第二发热区，所述第一电极设置在所述发热体的第二发热区，所述第二电极部与位于所述发热体的第一发热区的所述第二连接端电连接；所述第一发热区的发热温度与所述第二发热区的发热温度的比值大于2。
  17. 根据权利要求1所述的发热组件，其中，还包括保护层，涂覆在所述基板表面并将所述发热体、所述第一电极和所述第二电极覆盖。
  18. 根据权利要求1所述的发热组件，其中，所述发热体包括主要成分及晶体成分；所述主要成分为锰、锶、镧、锡、锑、锌、铋、硅、钛中的一种或多种，所述晶体成分为锰酸镧、锰酸锶镧、氧化锡、氧化锌、氧化锑、氧化铋、氧化硅、氧化钇中的一种或多种。
  19. 根据权利要求1所述的发热组件，其中，所述发热体具有第一加热表面以及与所述第一加热表面相对的第二加热表面；所述第一加热表面与所述基板的第一表面平齐，或凹陷于或凸出于所述基板的第一表面；所述第二加热表面与所述基板的第二表面平齐，或凹陷于或凸出于所述基板的第二表面。
  20. 一种气溶胶形成装置，其中，包括：壳体和设置在所述壳体内的发热组件和电源组件；其中，所述电源组件与所述发热组件连接，用于向所述发热组件供电，所述发热组件为如权利要求1所述的发热组件。
PCT/CN2021/096133 2020-09-23 2021-05-26 发热组件及气溶胶形成装置 WO2022062444A1 (zh)

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