WO2020248230A1 - 电子雾化装置及其雾化器和发热组件 - Google Patents

电子雾化装置及其雾化器和发热组件 Download PDF

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Publication number
WO2020248230A1
WO2020248230A1 PCT/CN2019/091277 CN2019091277W WO2020248230A1 WO 2020248230 A1 WO2020248230 A1 WO 2020248230A1 CN 2019091277 W CN2019091277 W CN 2019091277W WO 2020248230 A1 WO2020248230 A1 WO 2020248230A1
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WO
WIPO (PCT)
Prior art keywords
straight section
heating
section
area
atomization
Prior art date
Application number
PCT/CN2019/091277
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English (en)
French (fr)
Inventor
雷桂林
Original Assignee
深圳麦克韦尔股份有限公司
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Publication date
Application filed by 深圳麦克韦尔股份有限公司 filed Critical 深圳麦克韦尔股份有限公司
Priority to EP19932401.3A priority Critical patent/EP3984389A4/en
Priority to PCT/CN2019/091277 priority patent/WO2020248230A1/zh
Publication of WO2020248230A1 publication Critical patent/WO2020248230A1/zh
Priority to US17/555,480 priority patent/US20220110370A1/en

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Classifications

    • 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
    • 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
    • A24F40/48—Fluid transfer means, e.g. pumps
    • 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
    • A24F40/50—Control or monitoring
    • A24F40/57—Temperature control
    • 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
    • A24F40/10—Devices using liquid inhalable precursors

Definitions

  • the invention relates to the field of smokers' products, and more specifically, to an electronic atomization device, an atomizer and a heating component thereof.
  • Electronic cigarettes are also known as virtual cigarettes and electronic atomization devices. As an alternative to cigarettes, electronic cigarettes are mostly used to quit smoking. Electronic cigarettes have a similar appearance and taste to cigarettes, but generally do not contain other harmful ingredients such as tar and suspended particles in cigarettes.
  • the electronic cigarette is mainly composed of an atomizer and a power supply device.
  • the atomizer generally includes a heating component that heats the atomized smoke liquid after being energized.
  • the heating component generally includes a porous structure for liquid guiding and a heating element matched with the porous structure.
  • the oil supply area of the existing heating components is usually larger than the atomization area. Under the condition of unobstructed ventilation, liquid leakage is likely to occur, that is, the leakage of smoke liquid, resulting in waste of smoke liquid, poor user experience, and even smoke liquid pollution Electronic components, leading to the failure of electronic components.
  • the technical problem to be solved by the present invention is to provide an improved electronic atomization device and its atomizer and heating components in view of the above-mentioned defects of the prior art to solve the problem of liquid leakage.
  • the technical solution adopted by the present invention to solve its technical problem is to construct a heating component for use in an atomizer, including a porous body for absorbing the liquid medium and for heating the liquid medium absorbed into the porous body
  • An atomized heating element the porous body includes a first surface and a second surface that are opposed to each other, the first surface being an atomizing surface for installing the heating element;
  • the second surface is recessed inwardly to form a liquid guiding hole for accommodating the liquid guiding element, the liquid guiding hole has a bottom surface, and the bottom surface of the liquid guiding hole is the core atomization in the projection area of the atomizing surface Area, the core atomization area is a concentrated distribution area of the heating element;
  • the first average temperature of the core atomization area is higher than the second average temperature of the entire atomization surface.
  • the temperature difference between the first average temperature and the second average temperature is configured to enable part of the liquid medium at the periphery of the core atomization area to flow to the core atomization area.
  • the first average temperature is 120-200°C, and the first average temperature is higher than the second average temperature by more than 20°C.
  • the width of the heating element along the extension direction is the same, and the core atomization area is located at the center of the atomization surface.
  • the atomization mask has a first width L1
  • the core atomization area has a second width L2 along the extending direction of the first width L1
  • the second width L2 is the 30%-85% of the first width L1.
  • the second width L2 is 63%-70% of the first width L1.
  • 40-90% of the heating element is distributed in the core atomization area.
  • the porous body includes a stepped first base and a second base, the cross-sectional area of the first base is larger than the cross-sectional area of the second base, and the first base is far away from the A side surface of the second substrate forms the atomizing surface.
  • the heating component further includes a first electrode and a second electrode respectively connected to two ends of the heating body, and the first electrode and the second electrode are arranged diagonally on the atomizing surface.
  • the shape of the heating element is configured such that the area required to be heated per unit length of the heating element in the core atomization area is comparable in size.
  • the heating element is symmetrically arranged with respect to the center point of the atomization surface, and the heating element includes a first straight section, a second straight section, and a combination of the first straight section and The connecting section of the second straight section in series, and the first straight section is parallel to the second straight section;
  • the connecting section includes a first circular arc section connected with the first straight section, a second circular arc section connected with the second straight section, and a connection between the first circular arc section and the first circular arc section.
  • the first oblique straight section with two circular arc sections connected in series, the first circular arc section and the second circular arc section are located on the same circumference, and the first circular arc section and the second circular arc section are close to or located at all The edge of the core fogging area.
  • the heating element is symmetrically arranged with respect to the center point of the atomization surface, and the heating element includes a first straight section, a second straight section, and a combination of the first straight section and The connecting section of the second straight section in series, and the first straight section is parallel to the second straight section;
  • the connecting section includes at least one third straight section and at least one first curved section connected in series with the at least one third straight section, the third straight section being perpendicular to the first straight section.
  • the heating element is symmetrically arranged with respect to the center point of the atomization surface, and the heating element includes a first straight section, a second straight section, and a combination of the first straight section and The connecting section of the second straight section in series, and the first straight section is parallel to the second straight section;
  • the connecting section includes at least one second oblique straight section, at least one third oblique straight section, and at least one fourth straight section connecting the at least one second oblique straight section and the at least one third oblique straight section in series.
  • Section, the fourth straight section is parallel to the first straight section, the second oblique straight section and the third oblique straight section are staggered, and the second oblique straight section and the third oblique straight section The angle between the section and the fourth straight section is equal.
  • the present invention also provides a heating component for an atomizer, comprising a porous body for absorbing a liquid medium and a heating body for heating and atomizing the liquid medium absorbed into the porous body, the porous body Comprising a first surface and a second surface which are oppositely arranged, the first surface being an atomizing surface for installing the heating element;
  • the second surface is recessed inwardly to form a liquid guiding hole for accommodating the liquid guiding element, the liquid guiding hole has a bottom surface, and the bottom surface of the liquid guiding hole is the core atomization in the projection area of the atomizing surface Area, the core atomization area is a concentrated distribution area of the heating element.
  • the width of the heating element along the extension direction is the same, and the core atomization area is located at the center of the atomization surface.
  • the atomization mask has a first width L1
  • the core atomization area has a second width L2 along the extending direction of the first width L1
  • the second width L2 is the 30%-85% of the first width L1.
  • 40-90% of the heating element is distributed in the core atomization area.
  • the present invention also provides an atomizer, including the heating component as described in any one of the above, a liquid storage cavity for storing a liquid medium, and a liquid guiding element connecting the liquid storage cavity and the heating component.
  • the liquid guiding element is made of a porous material, and the liquid guiding element includes at least one honeycomb hole arranged in a honeycomb shape.
  • the present invention also provides an electronic atomization device, including a power supply device and the atomizer according to any one of the above, and the power supply device is electrically connected to the atomizer.
  • the implementation of the present invention has at least the following beneficial effects: when the heating component of the present invention is heated, the liquid medium volatilizes faster due to the higher temperature in the core atomization area, so that the liquid medium outside the core atomization area can flow to the core The atomization area gathers towards the core atomization area, so that liquid leakage can be avoided, and the user will not inhale droplets when inhaling the mist, which improves the user experience.
  • FIG. 1 is a schematic diagram of a three-dimensional structure of a heating component in some embodiments of the prior art
  • Fig. 2 is a schematic diagram of a three-dimensional structure of a heating component in some embodiments of the present invention.
  • Fig. 3 is a schematic view of another perspective three-dimensional structure of the heating element in some embodiments of the present invention.
  • Figure 4 is a top view of a heating element in some embodiments of the present invention.
  • Fig. 5 is a temperature field distribution diagram of the heating component shown in Fig. 4;
  • Fig. 6 is a schematic structural diagram of a first alternative solution of the heating element of the heating assembly shown in Fig. 4;
  • Figure 7 is a temperature field distribution diagram of the heating component shown in Figure 6;
  • Fig. 8 is a schematic structural diagram of a second alternative solution of the heating element of the heating assembly shown in Fig. 4;
  • Fig. 9 is a temperature field distribution diagram of the heating component shown in Fig. 8.
  • Fig. 10 is a schematic structural diagram of a third alternative solution of the heating element of the heating assembly shown in Fig. 4;
  • FIG 11 is a stress comparison diagram of the heating components shown in Figure 1, Figure 4, and Figure 10;
  • Figure 12 is a stress comparison diagram of the heating components shown in Figure 1, Figure 4, and Figure 10;
  • Figure 13 is a schematic diagram of the structure of an electronic cigarette in some embodiments of the present invention.
  • FIG. 14 is a schematic cross-sectional structure diagram of the heating component, the liquid guiding element, and the liquid storage tank in some embodiments of the present invention.
  • Fig. 15 is a schematic diagram of the structure of the heating component and the liquid guiding element in some embodiments of the present invention.
  • FIG. 2-4 show the heating component 10 in some embodiments of the present invention.
  • the heating component 10 can be used in an atomizer to heat and atomize liquid media such as smoke liquid and medicinal liquid.
  • the porous body 11 of the medium and the heating element 12a for heating and atomizing the liquid medium adsorbed in the porous body 11.
  • the porous body 11 includes a first surface and a second surface 1121 opposite to each other. Wherein, the first surface is the atomization surface 1111 for installing the heating element 12a, and the second surface 1121 is recessed inward to form a liquid guiding hole 1122 for accommodating the liquid guiding element 20 (see FIG. 15).
  • the shape of the liquid guiding hole 1122 is not limited to a round hole, and may be other shapes such as a square hole or a rectangular hole.
  • the porous body 11 may include a stepped first base 111 and a second base 112 in some embodiments, and the cross-sectional area of the first base 111 is larger than the cross-sectional area of the second base 112, so that the first base 111 and A positioning step is formed between the second base bodies 112 to facilitate the installation and positioning of the heating component 10.
  • a side surface of the first substrate 111 away from the second substrate 112 forms an atomization surface 1111, so that the area of the atomization surface 1111 can be increased while the heating component 10 occupies the same space.
  • the first base body 111 and the second base body 112 are both substantially rectangular parallelepiped in this embodiment, and the atomizing surface 1111 is formed on the rectangular surface of the first base body 111. Further, the length of the first base 111 may be greater than the length of the second base 112, and the width of the first base 111 may be equivalent to the width of the second base 112. In other embodiments, the cross-sections of the first base 111 and the second base 112 may also be circular, elliptical, diamond, square, or other shapes.
  • the liquid guiding hole 1122 has a bottom surface 1123, and the projection area of the bottom surface 1123 of the liquid guiding hole 1122 on the atomizing surface 1111 is the core atomizing area A, which is the concentrated distribution area of the heating element 12a.
  • the first average temperature of the core atomization area A is higher than the second average temperature of the entire atomization surface 1111.
  • the atomization surface 1111 may generally include a core atomization area A and an edge atomization area B located outside the core atomization area A, and the core atomization area A may generally be located at the center of the atomization surface 1111.
  • the liquid guide element guides the liquid medium in the liquid storage chamber of the atomizer to the porous body 11, with the bottom surface 1123 of the liquid guide hole 1122 as the center, and the liquid spreads outward, and the atomization surface 1111 corresponds to the bottom surface 1123 to form a core atomization area A , And the liquid expands outward to form an edge atomization area B.
  • the heating component 10 is heated, because the temperature of the core atomization area A is higher, the liquid medium volatilizes faster.
  • part of the liquid medium in the edge atomization area B will also flow to the core atomization area.
  • the temperature difference between the first average temperature and the second average temperature may be configured to enable part of the liquid medium in the edge atomization area B to flow to the core atomization area A.
  • the first average temperature may be 120-200°C, and the first average temperature may be higher than the second average temperature by more than 20°C.
  • the width of the heating element 12a along the extension direction is uniform, and the distribution density of the heating element 12a in the core atomization area A is greater than the distribution density of the edge atomization area B outside the core atomization area A.
  • the distribution density may be the ratio of the area occupied by the heating element 12a in the core atomization area A (or edge atomization area B) and the area of the core atomization area A (or edge atomization area B) ratio.
  • the atomization surface 1111 has a first width L1
  • the core atomization area A has a second width L2 along the extending direction of the first width L1.
  • the second width L2 may be 30%-85% of the first width L1.
  • the second width L2 is about 2/3 of the first width L1, and usually it can be selected between 63% and 70%.
  • a first electrode 141 and a second electrode 142 may be respectively provided at both ends of the heating element 12a for electrically connecting with the positive and negative electrodes of the battery device.
  • the edge atomization area B is located in the space defined by the first electrode 141 and the second electrode 142.
  • the heating component 10 may adopt a side air intake or bottom air intake.
  • the first electrode 141 and the second electrode 142 can be respectively arranged on the opposite corners of the atomizing surface 1111 to optimize the smoke delivery effect when the side air enters and effectively prevent the first electrode 141.
  • the second electrode 142 obstructs the airflow to prevent smoke from staying in the atomization cavity and improve the efficiency of smoke flow.
  • the heating element 12a can be a heating film or a heating wire, and its material can be metal. Both ends of the heating body 12a may be provided with pads 13 for mounting the first electrode 141 and the second electrode 142, respectively.
  • the heating element 12a is a heating film, which can be printed on the atomizing surface 1111 of the porous body 11 using electronic paste.
  • the heating body 12a can be integrally formed with the porous body 11 by sintering.
  • the heating film may include a first covering film and a second covering film sequentially formed on the atomizing surface 1111. Both the first cover film and the second cover film may be porous films.
  • the material of the first covering film can be titanium, zirconium, titanium aluminum alloy, titanium zirconium alloy, titanium molybdenum alloy, titanium-niobium alloy, iron aluminum alloy or tantalum aluminum alloy, etc.
  • the material of the second covering film can be platinum, palladium, palladium Copper alloy, gold-silver-platinum alloy, gold-silver alloy, palladium-silver alloy or gold-platinum alloy, etc.
  • the first covering film is a titanium-zirconium alloy film
  • the second covering film is a gold-silver alloy film.
  • the porous body 11 can be made of hard capillary structures such as porous ceramics, porous glass ceramics, and porous glass.
  • the porous body 11 is made of porous ceramic.
  • Porous ceramics are resistant to high temperatures, have stable chemical properties, and will not chemically react with smoke liquid.
  • Porous ceramics are insulators and will not be electrically connected to the heating element 12a provided on them to cause short circuit problems, which is convenient for manufacturing and low cost.
  • the pore size of the micropores on the porous ceramic may range from 1 ⁇ m to 100 ⁇ m.
  • the average pore diameter of the porous ceramic may be 10-35 ⁇ m.
  • the average pore diameter of the porous ceramic is 20-25 ⁇ m.
  • the volume of micropores with a pore diameter of 5 ⁇ m to 30 ⁇ m on the porous ceramic accounts for more than 60% of the volume of all micropores on the porous ceramic.
  • the volume of micropores with a pore diameter of 10-15 ⁇ m in porous ceramics accounts for more than 20% of the volume of all micropores on porous ceramics, and the volume of micropores with a pore diameter of 30-50 ⁇ m in porous ceramics accounts for the volume of all micropores on porous ceramics.
  • 30% the volume of micropores with a pore diameter of 5 ⁇ m to 30 ⁇ m on the porous ceramic.
  • the porosity of the porous ceramic can be 30% to 70%, and the porosity refers to the ratio of the total volume of the micro voids in the porous medium to the total volume of the porous medium.
  • the porosity can be adjusted according to the composition of the smoke liquid. For example, if the smoke liquid has a large viscosity, the porosity can be higher to ensure the liquid guiding effect.
  • the porosity of the porous ceramic is 50-60%.
  • the heating element 12a may be symmetrically arranged with respect to the center point of the atomizing surface 1111.
  • the atomization surface 1111 is approximately rectangular, and the core atomization area A is circular.
  • the heating element 12a may include a first straight section 121a, a second straight section 122a, and a connecting section connecting the first straight section 121a and the second straight section 122a in series.
  • the first straight section 121a is parallel to the second straight section 122a and can be arranged along the longitudinal direction of the atomizing surface 1111.
  • the connecting section may include a first circular arc section 123a connected with the first straight section 121a, a second circular arc section 125a connected with the second straight section 122a, and a connection between the first circular arc section 123a and the second circular arc
  • the first oblique straight section 124a is connected in series with the section 125a.
  • the first arc segment 123a and the second arc segment 125a are located on the same circumference, and the first arc segment 123a and the second arc segment 125a can be close to or located at the edge of the core atomization area A.
  • the two ends of the first oblique straight section 124a and the first circular arc section 123a and the second circular arc section 125a may be connected by a straight line or an arc.
  • FIG. 6 shows the heating element 12b in some embodiments of the present invention as an alternative to the heating element 12a of the heating assembly 10 described above.
  • the heating element 12b may include a first straight section 121b, a second straight section 122b, and a connecting section connecting the first straight section 121b and the second straight section 122b in series.
  • the first straight section 121b and the second straight section 122b are connected in series.
  • the straight sections 122b are parallel and can be arranged along the longitudinal direction of the atomizing surface 1111.
  • the connecting section may include at least one third straight section 123b and at least one first curved section 124b connected in series with the at least one third straight section 123b, and the third straight section 123b may be perpendicular to the first straight section 121b.
  • Most of the connecting section can be arranged in the core atomization area A, and the distance of the connecting section along the length direction or the width direction of the atomization surface 1111 may be the same or roughly the same as the diameter of the core atomization area A.
  • FIG. 8 shows the heating element 12c in some embodiments of the present invention as an alternative to the heating element 12a of the heating assembly 10 described above.
  • the heating element 12c may include a first straight section 121c, a second straight section 122c, and a connecting section connecting the first straight section 121c and the second straight section 122c in series.
  • the first straight section 121c and the second straight section 122c are connected in series.
  • the straight sections 122c are parallel and can be arranged along the longitudinal direction of the atomizing surface 1111.
  • the connecting section may include at least one second oblique straight section 123c, at least one third oblique straight section 125c, and at least one fourth straight section connecting at least one second oblique straight section 123c and at least one third oblique straight section 125c in series.
  • the fourth straight section 124c may be parallel to the first straight section 121c, the second oblique straight section 123c and the third oblique straight section 125c are alternately arranged, and the second oblique straight section 123c, the third oblique straight section 125c and the first oblique straight section 125c are arranged alternately.
  • the included angles between the four straight sections 124c are equal, and the second oblique straight section 123c and the third oblique straight section 125c located at the outermost periphery of the connecting section are respectively connected to the two pads 13.
  • Most of the connecting section can be arranged in the core atomization area A, and the distance of the connecting section along the length direction or the width direction of the atomization surface 1111 may be the same or roughly the same as the diameter of the core atomization area A.
  • the connecting section includes two second oblique straight sections 123c, two third oblique straight sections 125c, and the two second oblique straight sections 123c and two third oblique straight sections 125c in series.
  • FIG. 10 shows the heating element 12d in some embodiments of the present invention as an alternative to the heating element 12a of the heating assembly 10 described above.
  • the heating element 12d may include a first straight section 121d, a second straight section 122d, and a connecting section connecting the first straight section 121d and the second straight section 122d in series.
  • the first straight section 121d and the second straight section 122d are connected in series.
  • the straight sections 122d are parallel and can be arranged along the longitudinal direction of the atomizing surface 1111.
  • the connecting section may include a second curved section 123d connected to the first straight section 121d, a third curved section 125d connected to the second straight section 122d, and a series connection between the second curved section 123d and the third curved section 125d.
  • the fifth straight section 124d, and the fifth straight section 124d is parallel to the first straight section 121d.
  • the first straight section 121d, the second curved section 123d, the fifth straight section 124d, the third curved section 125d, and the second straight section 122d are connected in series to form a substantially S-shaped structure.
  • Figures 5, 7, and 9 show the temperature field distribution diagrams of the atomizing surface 1111 of the heating element shown in Figures 4, 6, and 8 after heating for 3 seconds.
  • the first average temperature of the heating element in the core atomization area A is between 120-200°C
  • the edge atomization area B is below 120°C.
  • the temperature of the heating element in the dry firing state can be effectively reduced, thereby reducing the thermal stress between the heating element and the porous body, and further reducing the deformation of the heating element and the porous body.
  • the shape of the heating element can be configured so that the area required to be heated per unit length of the heating element in the core atomization area A is basically the same, to avoid the local temperature of the porous body being too high, and to reduce the thermal stress between the heating element and the porous body , Reduce the deformation of the heating element and porous body.
  • Figures 11 and 12 respectively show the stress comparison diagram and the displacement (deformation) comparison diagram of the heating components shown in Figure 1, Figure 4, and Figure 10.
  • 1 shows a heating element 10e in some embodiments of the prior art.
  • the shape of the heating element 12e of the heating element 10e is similar to the shape of the heating element 12d shown in FIG.
  • the overall length of the heating component shown in Figure 1 is 9.05mm and the width is 4.05mm;
  • the overall length of the heating component shown in Figure 4 is 8mm and the width is 4mm;
  • the overall length of the heating component shown in Figure 10 is 10mm, the width is 6mm.
  • the heat-generating component shown in Figure 1 has the highest stress and deformation, and the heat-generating component shown in Figure 4 has the lowest stress and deformation.
  • Figures 13-15 show an electronic atomization device in some embodiments of the present invention.
  • the electronic atomization device can be used as an electronic cigarette, or as a medical atomizer.
  • the electronic atomization device may include an atomizer 1 and a battery device 2, and the battery device 2 is electrically connected to the atomizer 1.
  • the atomizer 1 and the battery device 2 may be detachably connected together by magnetic attraction or screw connection.
  • the atomizer 1 may include a liquid storage cavity 31 for accommodating a liquid medium, a heating component 10, and a liquid guiding element 20 connecting the liquid storage cavity 31 and the heating component 10.
  • the battery device 2 supplies power to the heating element of the heating assembly 10 in the atomizer 1, and the heating element heats up the liquid medium and atomizes it for the user to inhale. Understandably, any of the heating elements mentioned above can be applied to the electronic atomization device.
  • the atomizer 1 may further include a liquid storage tank 30 for containing a liquid medium.
  • the inner cavity of the liquid storage tank 30 forms a liquid storage cavity 31.
  • the length and shape of the liquid guiding element 20 can be adjusted according to actual needs.
  • One end of the liquid guiding element 20 can extend into the liquid storage tank 30, and the other end abuts against the bottom surface of the liquid guiding hole 1122 to guide the liquid medium in the liquid storage tank 30 into the porous body 11, and the liquid medium is guided
  • the bottom surface of the liquid hole 1122 spreads outward from the center.
  • the liquid guiding element 20 may be made of a porous material, and it may include at least one honeycomb hole 21 arranged in a honeycomb shape. By controlling the size and number of the honeycomb holes 21, the liquid guiding amount of the liquid guiding element 20 can be strictly controlled. Generally, the size and number of the honeycomb holes 21 can be adjusted according to the viscosity of the liquid medium, so that the liquid guiding amount of the liquid guiding element 20 matches the atomizing amount of the heating element.

Abstract

一种电子雾化装置及其雾化器（1）和发热组件（10），发热组件（10）包括多孔体（11）以及发热体（12a，12b，12c，12d，12e），多孔体（11）包括相对设置的第一面（1111）和第二面（1121），第一面（1111）为用于安装发热体（12a，12b，12c，12d，12e）的雾化面（1111）；第二面（1121）向内凹陷形成一用于容置导液元件（20）的导液孔（1122），导液孔（1122）具有一底面（1123），导液孔（1122）的底面（1123）在雾化面（1111）的投影区为核心雾化区域（A），核心雾化区域（A）为发热体（12a，12b，12c，12d，12e）的集中分布区；正常工作时，在发热体（12a，12b，12c，12d，12e）加热预设时间后，核心雾化区域（A）的第一平均温度高于整个雾化面（1111）的第二平均温度。发热组件（10）在加热的时候，由于核心雾化区域（A）的温度较高，液态介质挥发的较快，从而可使核心雾化区域（A）外的液态介质流向核心雾化区域（A），向核心雾化区域（A）聚集，从而可避免漏液。

Description

电子雾化装置及其雾化器和发热组件 技术领域
本发明涉及吸烟者用品领域，更具体地说，涉及一种电子雾化装置及其雾化器和发热组件。
 背景技术
电子烟又名虚拟香烟、电子雾化装置。电子烟作为替代香烟用品，多用于戒烟。电子烟具有与香烟相似的外观和味道，但一般不含香烟中的焦油、悬浮微粒等其他有害成分。
电子烟主要由雾化器和电源装置构成，雾化器一般包括通电后加热雾化烟液的发热组件，发热组件一般包括一个用于导液的多孔结构及与该多孔结构配合的发热体。现有的发热组件，其供油面积通常都大于雾化面积，在换气通畅的情况下，容易发生漏液，即烟液泄露，导致烟液浪费，用户体验差，甚至会出现烟液污染电子元器件，从而导致电子元器件失灵的情况。
 技术问题
本发明要解决的技术问题在于，针对现有技术的上述缺陷，提供一种改进的电子雾化装置及其雾化器和发热组件，解决漏液的问题。
 技术解决方案
本发明解决其技术问题所采用的技术方案是：构造一种发热组件，用于雾化器，包括用于吸取液态介质的多孔体以及用于对吸附到所述多孔体中的液态介质进行加热雾化的发热体，所述多孔体包括相对设置的第一面和第二面，所述第一面为用于安装所述发热体的雾化面；
所述第二面向内凹陷形成一用于容置导液元件的导液孔，所述导液孔具有一底面，所述导液孔的底面在所述雾化面的投影区为核心雾化区域，所述核心雾化区域为所述发热体的集中分布区；
正常工作时，在所述发热体加热预设时间后，所述核心雾化区域的第一平均温度高于整个所述雾化面的第二平均温度。
在一些实施例中，所述第一平均温度与所述第二平均温度的温度差被配置成能够使所述核心雾化区域外围的部分液态介质流向所述核心雾化区域。
在一些实施例中，所述第一平均温度为120-200℃，所述第一平均温度高于所述第二平均温度20℃以上。
在一些实施例中，所述发热体沿延伸方向的宽度一致，所述核心雾化区域位于所述雾化面的中心位置。
在一些实施例中，所述雾化面具有一第一宽度L1，所述核心雾化区域沿所述第一宽度L1的延伸方向具有一第二宽度L2，所述第二宽度L2为所述第一宽度L1的30%-85%。
在一些实施例中，所述第二宽度L2为所述第一宽度L1的63%-70%。
在一些实施例中，所述发热体的40-90%分布在所述核心雾化区域内。
在一些实施例中，所述多孔体包括呈阶梯型的第一基体和第二基体，所述第一基体的横截面积大于所述第二基体的横截面积，所述第一基体远离所述第二基体的一侧面形成所述雾化面。
在一些实施例中，所述发热组件还包括分别连接在所述发热体两端的第一电极和第二电极，所述第一电极、第二电极呈对角设置在所述雾化面上。
在一些实施例中，所述发热体的形状被配置成使得所述核心雾化区域中单位长度发热体所需要加热的区域大小相当。
在一些实施例中，所述发热体相对于所述雾化面的中心点对称设置，所述发热体包括第一平直段、第二平直段、以及将所述第一平直段和所述第二平直段串联的连接段，所述第一平直段与所述第二平直段平行；
所述连接段包括与所述第一平直段连接的第一圆弧段、与所述第二平直段连接的第二圆弧段、以及将所述第一圆弧段和所述第二圆弧段串联的第一斜直段，所述第一圆弧段与所述第二圆弧段位于同一圆周上，且所述第一圆弧段、第二圆弧段接近或位于所述核心雾化区域的边缘。
在一些实施例中，所述发热体相对于所述雾化面的中心点对称设置，所述发热体包括第一平直段、第二平直段、以及将所述第一平直段和所述第二平直段串联的连接段，所述第一平直段与所述第二平直段平行；
所述连接段包括至少一个第三平直段以及与该至少一个第三平直段串联的至少一个第一弯曲段，所述第三平直段垂直于所述第一平直段。
在一些实施例中，所述发热体相对于所述雾化面的中心点对称设置，所述发热体包括第一平直段、第二平直段、以及将所述第一平直段和所述第二平直段串联的连接段，所述第一平直段与所述第二平直段平行；
所述连接段包括至少一个第二斜直段、至少一个第三斜直段、以及将所述至少一个第二斜直段和所述至少一个第三斜直段串联的至少一个第四平直段，所述第四平直段与所述第一平直段平行，所述第二斜直段和所述第三斜直段交错设置，且所述第二斜直段、第三斜直段与所述第四平直段之间的夹角相等。
本发明还提供一种发热组件，用于雾化器，包括用于吸取液态介质的多孔体以及用于对吸附到所述多孔体中的液态介质进行加热雾化的发热体，所述多孔体包括相对设置的第一面和第二面，所述第一面为用于安装所述发热体的雾化面；
所述第二面向内凹陷形成一用于容置导液元件的导液孔，所述导液孔具有一底面，所述导液孔的底面在所述雾化面的投影区为核心雾化区域，所述核心雾化区域为所述发热体的集中分布区。
在一些实施例中，所述发热体沿延伸方向的宽度一致，所述核心雾化区域位于所述雾化面的中心位置。
在一些实施例中，所述雾化面具有一第一宽度L1，所述核心雾化区域沿所述第一宽度L1的延伸方向具有一第二宽度L2，所述第二宽度L2为所述第一宽度L1的30%-85%。
在一些实施例中，所述发热体的40-90%分布在所述核心雾化区域内。
本发明还提供一种雾化器，包括如上述任一项所述的发热组件、用于存储液态介质的储液腔、以及连接所述储液腔和所述发热组件的导液元件。
在一些实施例中，所述导液元件采用多孔材料制成，所述导液元件包括至少一个呈蜂窝状设置的蜂窝孔。
本发明还提供一种电子雾化装置，包括电源装置、以及如上述任一项所述的雾化器，所述电源装置与所述雾化器电性连接。
 有益效果
实施本发明至少具有以下有益效果：本发明中的发热组件在加热的时候，由于核心雾化区域的温度较高，液态介质挥发的较快，从而可使核心雾化区域外的液态介质流向核心雾化区域，向核心雾化区域聚集，从而可避免漏液的情况，用户吸雾的时候不会吸入液滴，提升了用户体验。
 附图说明
下面将结合附图及实施例对本发明作进一步说明，附图中：
图1是现有技术一些实施例中发热组件的立体结构示意图；
图2是本发明一些实施例中发热组件的立体结构示意图；
图3是本发明一些实施例中发热组件另一角度的立体结构示意图；
图4是本发明一些实施例中发热组件的俯视图；
图5是图4所示发热组件的温度场分布图；
图6是图4所示发热组件的发热体的第一个替代方案的结构示意图；
图7是图6所示发热组件的温度场分布图；
图8是图4所示发热组件的发热体的第二个替代方案的结构示意图；
图9是图8所示发热组件的温度场分布图；
图10是图4所示发热组件的发热体的第三个替代方案的结构示意图；
图11是图1、图4、图10所示发热组件的应力对比图；
图12是图1、图4、图10所示发热组件的应力对比图；
图13是本发明一些实施例中电子烟的结构示意图；
图14是本发明一些实施例中发热组件、导液元件、储液罐的剖视结构示意图；
图15是本发明一些实施例中发热组件、导液元件的结构示意图。
 本发明的实施方式
为了对本发明的技术特征、目的和效果有更加清楚的理解，现对照附图详细说明本发明的具体实施方式。
图2-4所示为本发明一些实施例中的发热组件10，该发热组件10可应用于雾化器中对烟液、药液等液态介质进行加热雾化，其可包括用于吸取液态介质的多孔体11以及用于对吸附到多孔体11中的液态介质进行加热雾化的发热体12a。该多孔体11包括相对设置的第一面和第二面1121。其中，该第一面为用于安装发热体12a的雾化面1111，第二面1121向内凹陷形成一用于容置导液元件20（参见图15）的导液孔1122。该导液孔1122的形状不限于圆孔，也可以是方孔、长方形孔等其他形状。
多孔体11在一些实施例中可包括呈阶梯型的第一基体111和第二基体112，且第一基体111的横截面积大于第二基体112的横截面积，以使第一基体111与第二基体112之间形成有定位的台阶，方便发热组件10的安装定位。优选地，第一基体111远离第二基体112的一侧面形成雾化面1111，从而可使得发热组件10占据空间不变的情况下，增加雾化面1111的面积。
第一基体111、第二基体112在本实施例中均大致呈长方体状，雾化面1111形成在第一基体111的长方形表面上。进一步地，第一基体111的长度可大于第二基体112的长度，第一基体111的宽度可与第二基体112的宽度相当。在其他实施例中，第一基体111、第二基体112的截面也可以为圆形、椭圆形、菱形、方形等其他形状。
导液孔1122具有一底面1123，导液孔1122的底面1123在雾化面1111的投影区为核心雾化区域A，该核心雾化区域A为发热体12a的集中分布区。正常工作时，在发热体12a加热预设时间后，核心雾化区域A的第一平均温度高于整个雾化面1111的第二平均温度。
雾化面1111通常可包括核心雾化区域A以及位于核心雾化区域A外的边缘雾化区域B，核心雾化区域A通常可位于雾化面1111的中心位置。导液元件将雾化器储液腔中的液态介质导到多孔体11，以导液孔1122的底面1123为中心，液体向外扩散，雾化面1111对应底面1123形成一个核心雾化区域A，而液体外扩形成边缘雾化区域B。发热组件10在加热的时候，因为核心雾化区域A的温度较高，液态介质挥发的较快，除了导液元件的液态介质，边缘雾化区域B的部分液态介质也会流向核心雾化区域A，向核心雾化区域A聚集，因此边缘雾化区域B会限定在一定范围内，从而可避免漏液的情况，用户吸雾的时候不会吸入液滴，提升了用户体验。
在一些实施例中，第一平均温度与第二平均温度的温度差可被配置成能够使边缘雾化区域B的部分液态介质流向核心雾化区域A。优选地，第一平均温度可以为120-200℃，第一平均温度可高于第二平均温度20℃以上。
通常，发热体12a沿延伸方向的宽度一致，发热体12a在核心雾化区域A中的分布密度大于在核心雾化区域A外的边缘雾化区域B的分布密度。该分布密度在一些实施例中可以为，发热体12a在核心雾化区域A（或边缘雾化区域B）所占的面积与该核心雾化区域A（或边缘雾化区域B）的面积的比值。
通常，发热体12a的40-90%分布在核心雾化区域A内。雾化面1111具有一第一宽度L1，核心雾化区域A沿第一宽度L1的延伸方向具有一第二宽度L2，第二宽度L2可以为第一宽度L1的30%-85%。优选地，第二宽度L2为第一宽度L1的2/3左右，通常其可以在63%-70%之间进行选择。
发热体12a的两端可分别设置有第一电极141、第二电极142，用于分别与电池装置的正负极电性连接。通常，边缘雾化区域B位于第一电极141、第二电极142所界定的空间内。
发热组件10可采取侧边进气或底部进气等进气方式。当发热组件10为侧边进气时，第一电极141、第二电极142可分别设置在雾化面1111的对角上，以优化侧边进气时烟雾的输送效果，有效防止第一电极141、第二电极142对气流的阻碍，避免烟雾滞留在雾化腔内，提高烟雾流动效率。
发热体12a可以为发热膜或发热丝，其材质可以为金属。发热体12a的两端分别可设置有用于安装第一电极141、第二电极142的焊盘13。优选地，发热体12a为发热膜，其可采用电子浆料印刷在多孔体11的雾化面1111上。当多孔体11为烧结式结构时，发热体12a可通过烧结的方式与多孔体11一体成型。
在一些实施例中，该发热膜可包括依次形成在雾化面1111上的第一覆盖膜和第二覆盖膜。第一覆盖膜、第二覆盖膜均可以为多孔膜。第一覆盖膜的材质可以为钛、锆、钛铝合金、钛锆合金、钛钼合金、钛铌合金、铁铝合金或钽铝合金等，第二覆盖膜的材质可以为铂、钯、钯铜合金、金银铂合金、金银合金、钯银合金或金铂合金等。优选地，第一覆盖膜为钛锆合金膜，第二覆盖膜为金银合金膜。
多孔体11可由多孔陶瓷、多孔玻璃陶瓷、多孔玻璃等硬质毛细结构制成。优选地，多孔体11由多孔陶瓷制成。多孔陶瓷耐高温，化学性质稳定，不会与烟液发生化学反应，且多孔陶瓷为绝缘体，不会与其上设置的发热体12a电连接而发生短路等问题，方便制造、成本低。
在一些实施例中，多孔陶瓷上的微孔的孔径范围可为1μm至100μm。多孔陶瓷的平均孔径可为10-35μm。优选地，多孔陶瓷的平均孔径为20-25μm。
优选地，多孔陶瓷上的孔径为5μm至30μm的微孔的体积，占多孔陶瓷上的所有微孔体积的60%以上。多孔陶瓷中孔径为10-15μm的微孔的体积占多孔陶瓷上的所有微孔体积的20%以上，多孔陶瓷中孔径为30-50μm的微孔的体积占多孔陶瓷上的所有微孔体积的30%左右。
多孔陶瓷的孔隙率可为30%至70%，孔隙率是指多孔介质内的微小空隙的总体积与该多孔介质的总体积的比值。孔隙率的大小可以根据烟液的成分来调整，例如烟液的粘稠度大的，孔隙率则可以高一些，以保证导液效果。优选地，多孔陶瓷的孔隙率为50-60%。
发热体12a可相对于雾化面1111的中心点对称设置。在本实施例中，雾化面1111大致呈长方形，核心雾化区域A呈圆形。
发热体12a可包括第一平直段121a、第二平直段122a、以及将第一平直段121a和第二平直段122a串联的连接段。第一平直段121a与第二平直段122a平行，并可沿雾化面1111的纵长方向设置。
该连接段可包括与第一平直段121a连接的第一圆弧段123a、与第二平直段122a连接的第二圆弧段125a、以及将第一圆弧段123a和第二圆弧段125a串联的第一斜直段124a。第一圆弧段123a与第二圆弧段125a位于同一圆周上，且第一圆弧段123a、第二圆弧段125a可接近或位于核心雾化区域A的边缘。第一斜直段124a的两端与第一圆弧段123a、第二圆弧段125a之间可通过直线连接或弧线连接。
图6示出了本发明一些实施例中的发热体12b，作为上述发热组件10的发热体12a的一个替代方案。该发热体12b可包括第一平直段121b、第二平直段122b、以及将第一平直段121b和第二平直段122b串联的连接段，第一平直段121b与第二平直段122b平行，并可沿雾化面1111的纵长方向设置。
该连接段可包括至少一个第三平直段123b以及与该至少一个第三平直段123b串联的至少一个第一弯曲段124b，第三平直段123b可垂直于第一平直段121b。该连接段的绝大部分可设置在核心雾化区域A中，该连接段沿雾化面1111的长度方向或宽度方向的距离可与核心雾化区域A的直径相当或大致相当。
图8示出了本发明一些实施例中的发热体12c，作为上述发热组件10的发热体12a的一个替代方案。该发热体12c可包括第一平直段121c、第二平直段122c、以及将第一平直段121c和第二平直段122c串联的连接段，第一平直段121c与第二平直段122c平行，并可沿雾化面1111的纵长方向设置。
该连接段可包括至少一个第二斜直段123c、至少一个第三斜直段125c、以及将至少一个第二斜直段123c和至少一个第三斜直段125c串联的至少一个第四平直段124c。第四平直段124c可与第一平直段121c平行，第二斜直段123c和第三斜直段125c交错设置，且第二斜直段123c、第三斜直段125c与所述第四平直段124c之间的夹角相等，位于该连接段最外围的第二斜直段123c、第三斜直段125c分别与两个焊盘13连接。该连接段的绝大部分可设置在核心雾化区域A中，该连接段沿雾化面1111的长度方向或宽度方向的距离可与核心雾化区域A的直径相当或大致相当。
在本实施例中，该连接段包括两个第二斜直段123c、两个第三斜直段125c、以及将该两个第二斜直段123c和两个第三斜直段125c串联的三个第四平直段124c。
图10示出了本发明一些实施例中的发热体12d，作为上述发热组件10的发热体12a的一个替代方案。该发热体12d可包括第一平直段121d、第二平直段122d、以及将第一平直段121d和第二平直段122d串联的连接段，第一平直段121d与第二平直段122d平行，并可沿雾化面1111的纵长方向设置。
该连接段可包括与第一平直段121d连接的第二弯曲段123d、与第二平直段122d 连接的第三弯曲段125d、以及将第二弯曲段123d与第三弯曲段125d串联的第五平直段124d，且第五平直段124d与第一平直段121d平行。第一平直段121d、第二弯曲段123d、第五平直段124d、第三弯曲段125d、第二平直段122d 依次串联形成大致呈S型结构。
图5、7、9所示分别为图4、6、8所示的发热体加热3s后雾化面1111的温度场分布图。根据模拟实验表明，该发热体在核心雾化区域A的第一平均温度在120-200℃之间，边缘雾化区域B的在120℃以下。用户抽烟的时候，由于核心雾化区域A的温度足够高，烟液挥发的很快，从而使边缘雾化区域B的烟液向核心雾化区域A聚集，从而可避免漏液的发生，用户吸雾的时候不会吸入液滴，提升了用户体验。
进一步地，还可通过改变发热体的形状及长度，从而有效的降低干烧状态下发热体的温度，进而降低发热体与多孔体之间的热应力，进一步减少发热体和多孔体的变形量。通常，发热体的形状可配置成使得核心雾化区域A中单位长度发热体所需要加热的区域大小基本一致，避免多孔体的局部温度过高，来降低发热体与多孔体之间的热应力，减少发热体和多孔体的变形量。
图11、图12分别示出了图1、图4、图10所示发热组件的应力对比图和位移量（变形量）对比图。其中，图1为现有技术一些实施例中的发热组件10e，该发热组件10e的发热体12e的形状与图10所示的发热体12d的形状类似。在该模拟实验中，图1所示发热组件的整体长度为9.05mm，宽度为4.05mm；图4所示发热组件的整体长度为8mm，宽度为4mm；图10所示发热组件的整体长度为10mm，宽度为6mm。结合图11-12可知，图1所示发热组件的应力和变形量最高，图4所示发热组件的应力和变形量最低。在模拟实验中，通过采用本发明中图6、图8所示的发热组件的发热体，也可以达到类似于图4所示发热体的应力和变形量的效果，实现发热组件较低的应力和变形量。
图13-15示出了本发明一些实施例中的电子雾化装置，该电子雾化装置可作为电子烟使用，也可作为医疗雾化器等使用。
该电子雾化装置可包括雾化器1和电池装置2，电池装置2与雾化器1电性连接。雾化器1和电池装置2在一些实施例中可以以磁吸、螺接等可拆卸的方式连接在一起。
雾化器1可包括用于收容液态介质的储液腔31、发热组件10、以及连接储液腔31和发热组件10的导液元件20。雾化器1和电池装置2组装后，电池装置2为雾化器1中的发热组件10的发热体供电，发热体发热后对液态介质加热雾化，供用户吸食。可以理解地，上述的任意一种发热体均可以适用于该电子雾化装置。
雾化器1在一些实施例中还可包括用于收容液态介质的储液罐30。储液罐30的内腔形成储液腔31。导液元件20的长度和形状可按实际需要做调整。导液元件20的一端可伸入到储液罐30中，另一端与导液孔1122的底面抵接，以将储液罐30中的液态介质导到多孔体11中，液态介质再以导液孔1122的底面为中心向外扩散。
导液元件20可采用多孔材料制成，其可包括至少一个呈蜂窝状设置的蜂窝孔21。通过控制蜂窝孔21的尺寸和数量，可以严格控制导液元件20的导液量。通常，可根据液态介质的粘性来调整蜂窝孔21的尺寸和数量，从而使得导液元件20的导液量与发热体的雾化量匹配。
可以理解地，上述各技术特征可以任意组合使用而不受限制。
以上实施例仅表达了本发明的优选实施方式，其描述较为具体和详细，但并不能因此而理解为对本发明专利范围的限制；应当指出的是，对于本领域的普通技术人员来说，在不脱离本发明构思的前提下，可以对上述技术特点进行自由组合，还可以做出若干变形和改进，这些都属于本发明的保护范围；因此，凡跟本发明权利要求范围所做的等同变换与修饰，均应属于本发明权利要求的涵盖范围。

Claims (20)

  1. 一种发热组件（10），用于雾化器，其特征在于，包括用于吸取液态介质的多孔体（11）以及用于对吸附到所述多孔体（11）中的液态介质进行加热雾化的发热体（12a，12b，12c，12d），所述多孔体（11）包括相对设置的第一面和第二面（1121），所述第一面为用于安装所述发热体（12a，12b，12c，12d）的雾化面（1111）；
    所述第二面（1121）向内凹陷形成一用于容置导液元件的导液孔（1122），所述导液孔（1122）具有一底面（1123），所述导液孔（1122）的底面（1123）在所述雾化面（1111）的投影区为核心雾化区域（A），所述核心雾化区域（A）为所述发热体（12a，12b，12c，12d）的集中分布区；
    正常工作时，在所述发热体（12a，12b，12c，12d）加热预设时间后，所述核心雾化区域（A）的第一平均温度高于整个所述雾化面（1111）的第二平均温度。
  2. 根据权利要求1所述的发热组件（10），其特征在于，所述第一平均温度与所述第二平均温度的温度差被配置成能够使所述核心雾化区域（A）外围的部分液态介质流向所述核心雾化区域（A）。
  3. 根据权利要求1所述的发热组件（10），其特征在于，所述第一平均温度为120-200℃，所述第一平均温度高于所述第二平均温度20℃以上。
  4. 根据权利要求1-3任一项所述的发热组件（10），其特征在于，所述发热体（12a，12b，12c，12d）沿延伸方向的宽度一致，所述核心雾化区域（A）位于所述雾化面（1111）的中心位置。
  5. 根据权利要求4所述的发热组件（10），其特征在于，所述雾化面（1111）具有一第一宽度L1，所述核心雾化区域（A）沿所述第一宽度L1的延伸方向具有一第二宽度L2，所述第二宽度L2为所述第一宽度L1的30%-85%。
  6. 根据权利要求5所述的发热组件（10），其特征在于，所述第二宽度L2为所述第一宽度L1的63%-70%。
  7. 根据权利要求4所述的发热组件（10），其特征在于，所述发热体（12a，12b，12c，12d）的40-90%分布在所述核心雾化区域（A）内。
  8. 根据权利要求1所述的发热组件（10），其特征在于，所述多孔体（11）包括呈阶梯型的第一基体（111）和第二基体（112），所述第一基体（111）的横截面积大于所述第二基体（112）的横截面积，所述第一基体（111）远离所述第二基体（112）的一侧面形成所述雾化面（1111）。
  9. 根据权利要求1所述的发热组件（10），其特征在于，还包括分别连接在所述发热体（12a，12b，12c，12d）两端的第一电极（141）和第二电极（142），所述第一电极（141）、第二电极（142）呈对角设置在所述雾化面（1111）上。
  10. 根据权利要求1所述的发热组件（10），其特征在于，所述发热体（12a，12b，12c，12d）的形状被配置成使得所述核心雾化区域（A）中单位长度发热体（12a，12b，12c，12d）所需要加热的区域大小相当。
  11. 根据权利要求1所述的发热组件（10），其特征在于，所述发热体（12a）相对于所述雾化面（1111）的中心点对称设置，所述发热体（12a）包括第一平直段（121a）、第二平直段（122a）、以及将所述第一平直段（121a）和所述第二平直段（122a）串联的连接段，所述第一平直段（121a）与所述第二平直段（122a）平行；
    所述连接段包括与所述第一平直段（121a）连接的第一圆弧段（123a）、与所述第二平直段（122a）连接的第二圆弧段（125a）、以及将所述第一圆弧段（123a）和所述第二圆弧段（125a）串联的第一斜直段（124a），所述第一圆弧段（123a）与所述第二圆弧段（125a）位于同一圆周上，且所述第一圆弧段（123a）、第二圆弧段（125a）接近或位于所述核心雾化区域（A）的边缘。
  12. 根据权利要求1所述的发热组件（10），其特征在于，所述发热体（12b）相对于所述雾化面（1111）的中心点对称设置，所述发热体（12b）包括第一平直段（121b）、第二平直段（122b）、以及将所述第一平直段（121b）和所述第二平直段（122b）串联的连接段，所述第一平直段（121b）与所述第二平直段（122b）平行；
    所述连接段包括至少一个第三平直段（123b）以及与该至少一个第三平直段（123b）串联的至少一个第一弯曲段（124b），所述第三平直段（123b）垂直于所述第一平直段（121b）。
  13. 根据权利要求1所述的发热组件（10），其特征在于，所述发热体（12c）相对于所述雾化面（1111）的中心点对称设置，所述发热体（12c）包括第一平直段（121c）、第二平直段（122c）、以及将所述第一平直段（121c）和所述第二平直段（122c）串联的连接段，所述第一平直段（121c）与所述第二平直段（122c）平行；
    所述连接段包括至少一个第二斜直段（123c）、至少一个第三斜直段（125c）、以及将所述至少一个第二斜直段（123c）和所述至少一个第三斜直段（125c）串联的至少一个第四平直段（124c），所述第四平直段（124c）与所述第一平直段（121c）平行，所述第二斜直段（123c）和所述第三斜直段（125c）交错设置，且所述第二斜直段（123c）、第三斜直段（125c）与所述第四平直段（124c）之间的夹角相等。
  14. 一种发热组件（10），用于雾化器，其特征在于，包括用于吸取液态介质的多孔体（11）以及用于对吸附到所述多孔体（11）中的液态介质进行加热雾化的发热体（12a，12b，12c，12d），所述多孔体（11）包括相对设置的第一面和第二面（1121），所述第一面为用于安装所述发热体（12a，12b，12c，12d）的雾化面（1111）；
    所述第二面（1121）向内凹陷形成一用于容置导液元件的导液孔（1122），所述导液孔（1122）具有一底面（1123），所述导液孔（1122）的底面（1123）在所述雾化面（1111）的投影区为核心雾化区域（A），所述核心雾化区域（A）为所述发热体（12a，12b，12c，12d）的集中分布区。
  15. 根据权利要求14所述的发热组件（10），其特征在于，所述发热体（12a，12b，12c，12d）沿延伸方向的宽度一致，所述核心雾化区域（A）位于所述雾化面（1111）的中心位置。
  16. 根据权利要求15所述的发热组件（10），其特征在于，所述雾化面（1111）具有一第一宽度L1，所述核心雾化区域（A）沿所述第一宽度L1的延伸方向具有一第二宽度L2，所述第二宽度L2为所述第一宽度L1的30%-85%。
  17. 根据权利要求15所述的发热组件（10），其特征在于，所述发热体（12a，12b，12c，12d）的40-90%分布在所述核心雾化区域（A）内。
  18. 一种雾化器（1），其特征在于，包括如权利要求1-17任一项所述的发热组件（10）、用于存储液态介质的储液腔（31）、以及连接所述储液腔（31）和所述发热组件（10）的导液元件（20）。
  19. 根据权利要求18所述的雾化器（1），其特征在于，所述导液元件（20）采用多孔材料制成，所述导液元件（20）包括至少一个呈蜂窝状设置的蜂窝孔（21）。
  20. 一种电子雾化装置，其特征在于，包括电源装置（2）、以及如权利要求18-19任一项所述的雾化器（1），所述电源装置（2）与所述雾化器（1）电性连接。
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