WO2022174415A1 - 雾化稳定的发热体、发热组件和雾化装置 - Google Patents

雾化稳定的发热体、发热组件和雾化装置 Download PDF

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Publication number
WO2022174415A1
WO2022174415A1 PCT/CN2021/077046 CN2021077046W WO2022174415A1 WO 2022174415 A1 WO2022174415 A1 WO 2022174415A1 CN 2021077046 W CN2021077046 W CN 2021077046W WO 2022174415 A1 WO2022174415 A1 WO 2022174415A1
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WO
WIPO (PCT)
Prior art keywords
heating
liquid
heating element
middle portion
radial direction
Prior art date
Application number
PCT/CN2021/077046
Other languages
English (en)
French (fr)
Inventor
汪小蝶
Original Assignee
深圳市华诚达发展有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 深圳市华诚达发展有限公司 filed Critical 深圳市华诚达发展有限公司
Priority to PCT/CN2021/077046 priority Critical patent/WO2022174415A1/zh
Priority to EP21926133.6A priority patent/EP4265132A4/en
Publication of WO2022174415A1 publication Critical patent/WO2022174415A1/zh

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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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C3/00—Non-adjustable metal resistors made of wire or ribbon, e.g. coiled, woven or formed as grids
    • H01C3/08—Dimension or characteristic of resistive element changing gradually or in discrete steps from one terminal to another
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C3/00—Non-adjustable metal resistors made of wire or ribbon, e.g. coiled, woven or formed as grids
    • H01C3/14—Non-adjustable metal resistors made of wire or ribbon, e.g. coiled, woven or formed as grids the resistive element being formed in two or more coils or loops continuously wound as a spiral, helical or toroidal winding
    • H01C3/20—Non-adjustable metal resistors made of wire or ribbon, e.g. coiled, woven or formed as grids the resistive element being formed in two or more coils or loops continuously wound as a spiral, helical or toroidal winding wound on cylindrical or prismatic base
    • 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—Heater elements characterised by the composition or nature of the materials or by the arrangement of the conductor
    • H05B3/16—Heater 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
    • 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
    • H05B3/40—Heating elements having the shape of rods or tubes
    • H05B3/42—Heating elements having the shape of rods or tubes non-flexible
    • H05B3/46—Heating elements having the shape of rods or tubes non-flexible heating conductor mounted on 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
    • A24F40/10—Devices using liquid inhalable precursors
    • 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
    • A24F40/70—Manufacture
    • 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
    • H05B2203/014—Heaters using resistive wires or cables not provided for in H05B3/54
    • 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
    • H05B2203/021—Heaters specially adapted for heating liquids

Definitions

  • the present invention relates to the technical field of heating elements, in particular to a heating element with stable atomization, a heating component and an atomizing device.
  • liquid-conducting cotton as the liquid-conducting member, such as liquid-conducting cotton rope, which generally uses a heating wire wrapped around the periphery of the liquid-conducting cotton rope. Since the thickness of the liquid-conducting cotton is the same, it is inserted into the inner hole of the heating element, and the liquid is conducted from both ends to the heating element through the liquid-conducting cotton rope. Evaporation.
  • the above structure will have problems: the liquid-conducting cotton is partially fried with oil or paste core, the atomization stability is not good, and harmful substances are generated, which affects the consumer experience.
  • the technical problem to be solved by the present invention is to provide a heating element, a heating component and an atomizing device with stable atomization in view of the above-mentioned defects in the related art.
  • the technical solution adopted by the present invention to solve the technical problem includes: providing a heating body, comprising a middle part and end parts respectively arranged at both ends of the middle part, the middle part is connected with the end parts, so as to The heating body generates heat when the end portions at both ends are energized, and the heating body is provided with an accommodating space penetrating the end portion and the middle portion;
  • a cross-sectional area of the receiving space at the middle portion is smaller than a cross-sectional area at the end portion.
  • a radial dimension of the accommodating space at the middle portion is smaller than a radial dimension at the end portion; in a second radial direction, the accommodating space is at the middle portion The radial dimension at the portion is smaller than the radial dimension at the end portion, the first radial direction being non-parallel to the second radial direction.
  • a radial dimension of the accommodating space at the middle portion is smaller than a radial dimension at the end portion; in a second radial direction, the accommodating space is at the middle portion The radial dimension at the portion is greater than or equal to the radial dimension at the end portion, the first radial direction being non-parallel to the second radial direction.
  • the cross-sectional area of the accommodating space gradually decreases from the end portion to the middle portion.
  • the cross-sectional area of the accommodating space decreases in steps from the end portion to the middle portion.
  • the heating element is in a spiral shape.
  • the heating body is formed by winding a heating wire.
  • the heating body is tubular, and a hollow structure penetrating into the accommodating space is provided on the middle portion.
  • the technical solution adopted by the present invention to solve the technical problem includes: providing a heating component including a liquid conducting element and the above-mentioned heating element, wherein the conducting liquid is arranged in the accommodating space and is in contact with the inner side of the heating element.
  • the technical solution adopted by the present invention to solve the technical problem includes: providing an atomization device, including a casing and the above-mentioned heating component, the casing is provided with a liquid channel and an air channel, and the liquid channel leads to the guide liquid, so that the liquid conducting liquid conducts the liquid to the heating element for heating and atomization.
  • the heating element, the heating assembly and the atomizing device can satisfy the liquid supply, and at the same time, the heating element and the liquid-conducting cotton can have better contact and better heating stability.
  • FIG. 1 is a perspective view of a heating element according to a first embodiment of the present invention.
  • FIG. 2 is a perspective view of the heating component according to the first embodiment of the present invention, including the liquid conducting liquid and the heating element of FIG. 1 .
  • FIG. 3 is an orthographic view of the heat generating assembly of FIG. 2 .
  • FIG. 4 is an exploded view of the heat generating assembly of FIG. 2 .
  • FIG. 5 is a cross-sectional view of the heat generating assembly of FIG. 2 .
  • FIG. 6 is a cross-sectional view of a heat generating component according to a second embodiment of the present invention, including a liquid conducting body and a heat generating body.
  • FIG. 7 is a cross-sectional view of a heating assembly according to a third embodiment of the present invention, including a liquid conducting body and a heating body, and the shaded portion represents the projection of the middle portion of the heating body.
  • FIG. 8 is a flowchart of the method of manufacturing the heat generating component of FIG. 7 , and the hatched portion represents the projection of the middle portion of the heat generating body.
  • Fig. 9 is a perspective view of a heating element according to a fourth embodiment of the present invention.
  • FIG. 10 is a perspective view of a heating element according to a fourth embodiment of the present invention, including the liquid conducting element and the heating element of FIG. 9 .
  • FIG. 11 is an exploded view of the heat generating assembly of FIG. 10 .
  • FIG. 12 is a flowchart of a method of manufacturing the heat generating element of FIG. 10 .
  • Fig. 13 is a perspective view of a heating element according to a fifth embodiment of the present invention.
  • FIG. 14 is a perspective view of a heating element according to a fifth embodiment of the present invention, including the liquid conducting element and the heating element shown in FIG. 13 .
  • FIG. 15 is an exploded view of the heat generating assembly of FIG. 14 .
  • FIG. 16 is a flowchart of a method of manufacturing the heat generating element of FIG. 14 .
  • FIG. 17 is a perspective view of a heat generating body according to a sixth embodiment of the present invention.
  • FIG. 18 is a perspective view of a heating element according to a sixth embodiment of the present invention, including the liquid conducting element and the heating element shown in FIG. 17 .
  • FIG. 19 is an exploded view of the heat generating assembly of FIG. 18 .
  • FIG. 20 is a cross-sectional view of the heat generating assembly of FIG. 18 .
  • FIG. 21 is a cross-sectional view of the heat generating assembly of FIG. 18 taken from another direction.
  • FIG. 22 is a cross-sectional view of the heat generating element of FIG. 18 taken in another direction.
  • FIG. 23 is a flowchart of a method of manufacturing the heat generating element of FIG. 18 .
  • Fig. 24 is an exploded view of an atomizing device according to an embodiment of the present invention.
  • Fig. 25 is a cross-sectional view of the atomizing device of Fig. 24 (arrows indicate the flow direction of the liquid).
  • Fig. 26 is another cross-sectional view of the atomizing device of Fig. 24 (the arrows indicate the flow direction of the atomizing gas).
  • the symbols in the figure represent: heating element 1, middle part 11, hollow structure 111, annular part 112, connecting part 113, end part 12, accommodation space 13, first radial direction 1a, second radial direction 1b, liquid conducting 2.
  • Shell 3 liquid storage tank 31, liquid channel 32, air channel 33, shaping tool 4. .
  • the thickness of the liquid-conducting cotton rope is also the same.
  • the inner wall of the heating body at both ends limits the gap of the liquid-conducting cotton, which causes the liquid supply of the heating body in the middle section to be slow, and due to the principle of heat conduction and heat radiation, the heating body temperature in the middle section is higher than that at both ends, so it is easy to cause the middle section. Insufficient liquid supply in the segment causes the atomization temperature to be too high, and the paste core produces harmful substances.
  • the liquid-conducting cotton rope When the liquid-conducting cotton rope is loose in the hole of the heating body, the liquid-conducting cotton is fluffy and has good liquid-conducting performance, which can meet the liquid supply in the middle section.
  • the liquid-conducting cotton since the liquid-conducting cotton is a soft material, its shape is irregular. Therefore, when the liquid-conducting cotton rope and the heating element are loosely matched, there will be some places where the heating element and the cotton rope cannot be contacted. In the process of use, there will be problems of frying oil and paste core, which will affect the consumer experience.
  • the present invention provides a heating element, a heating component and an atomizing device with stable atomization.
  • the heating element 1 in some embodiments of the present invention includes a middle portion 11 and end portions 12 respectively provided at both ends of the middle portion 11, and the middle portion 11 is connected with the end portions 12, so that the ends When the end portion 12 is energized, the heating element 1 generates heat due to the thermal effect of the resistance, and the heating element 1 is provided with an accommodating space 13 that penetrates the end portion 12 and the middle portion 11 for accommodating the liquid conductor 2;
  • the cross-sectional area of the accommodation space 13 at the middle portion 11 is smaller than that at the end portion 12 .
  • the accommodating space 13 of the heating element 1 has a large cross-sectional area at the end portion 12 and a small cross-sectional area at the middle portion 11 (in this way, the accommodating space 13 of the heating element 1 has a larger space at both ends and a smaller space in the middle), because Usually, the thickness of the liquid guide 2 is uniform, so that the liquid guide 2 is inserted into the accommodation space 13 of the heating element 1, and the heating element 1 and the liquid guide 2 are loosely matched at both ends, and the middle is tight, which can meet the requirements of the liquid supply. At the same time, the heating element 1 is in better contact with the liquid-conducting cotton, and the heating stability is good.
  • the heating element 1 can be applied to an atomizing device.
  • the radial dimension of the receiving space 13 at the middle portion 11 is smaller than the radial dimension at the end portion 12; In the two radial directions 1b, the radial dimension of the accommodating space 13 at the middle portion 11 may be smaller than that at the end portion 12, and the first radial direction 1a is not parallel to the second radial direction 1b.
  • the radial dimension of the accommodation space 13 at the middle portion 11 is smaller than the radial dimension at the end portion 12;
  • the radial dimension of the accommodating space 13 at the middle portion 11 may also be greater than or equal to the radial dimension at the end portion 12, and the first radial direction 1a is not parallel to the second radial direction 1b.
  • the cross-sectional area is the area of the cross-section perpendicular to the through direction of the accommodating space, and the radial direction is perpendicular to the through direction of the accommodating space.
  • the first radial direction 1a and the second radial direction 1b are perpendicular to the through direction of the accommodating space 13, and the first radial direction 1a is perpendicular to the second radial direction 1b.
  • Fig. 1-23 shows the different structures of the heating element 1, which can have a spiral structure (see Fig. 1-8) or a tubular structure (see Fig. 9-23).
  • the heating element 1 is in a spiral shape.
  • the heating element 1 may be formed by winding a heating wire.
  • the heating wire can be wound into a spiral shape with a small inner diameter in the middle part and large inner diameters at both ends, and then the conducting liquid 2 is passed through In the accommodating space 13 of the heating element 1 , a structure in which the heating element 1 is wound around the outside of the liquid conducting body 2 is formed.
  • the structure can be formed by using a normal columnar helical heating body by extruding and shaping the middle portion 11 of the heating body 1 by the shaping tool 4 , so as to achieve the heating body 1 and the conductor. Liquid 2 contacts good purpose. In this way, the implementation is simple and convenient, the size is controllable, and the mass production can be automated.
  • the heating body 1 is tubular, and the middle portion 11 is provided with a hollow structure 111 penetrating from the outside to the accommodating space 13 .
  • the middle portion 11 may include an annular portion 112 and a connecting portion 113 .
  • the annular portions 112 are arranged at intervals in the direction in which the accommodating space 13 passes through, and two adjacent annular portions 112 are connected by the connecting portion 113 .
  • two adjacent connecting portions 113 are staggered in the circumferential direction.
  • a tubular metal with a thin end portion 12 of a thin end portion 12 can also be obtained by drawing, and then a tubular metal having a hollow structure 111 can be obtained by etching, cutting, punching and other processes.
  • Heater 1 a tubular metal with a thin end portion 12 of a thin end portion 12 can also be obtained by drawing, and then a tubular metal having a hollow structure 111 can be obtained by etching, cutting, punching and other processes.
  • the heating element 1 is a tubular heating element.
  • the liquid guide 2 is inserted into the accommodating space 13 of the tubular heating element.
  • the heating part of the tubular heating body is pressed into racetrack, oval, square and other shapes. According to the circumstance of a certain perimeter, the area of the circle is the largest.
  • the middle part 11 of the heating area of the heating element 1 can be shaped into a racetrack, ellipse, square or other shape, so that the cross-sectional area of the inner diameter of the heating area in the middle of the heating element 1 is smaller than that of the end part.
  • the transition from the end portion 12 to the middle portion 11 is inclined, and the cross-sectional area of the accommodating space 13 can gradually decrease from the end portion 12 to the middle portion 11 . transition.
  • the cross-sectional area of the accommodating space 13 can also be reduced in steps from the end portion 12 to the middle portion 11 .
  • the heating assembly of the present invention includes the liquid conducting element 2 and the above-mentioned heating element 1 .
  • FIGS. 1-23 show the combined structure of the heating element 1 and the liquid conducting element according to the above-mentioned various embodiments.
  • the space 13 is in contact with the inner side of the heating element 1 .
  • the heating element When the heating element is used for atomization, the liquid conducting liquid 2 is in contact with the liquid, and the liquid is conducted to the heating element 1 for heating and atomization.
  • Liquid guide 2 can use liquid guide cotton, such as liquid guide cotton rope.
  • the heating element adopts the above-mentioned heating element 1.
  • the heating element 1 has a large cross-sectional area of the end portion 12 and a small cross-sectional area of the middle portion 11 (in this way, the space at both ends of the accommodation space 13 of the heating element 1 is large, and the middle space is small) , usually the thickness of the liquid guide 2 is uniform, so that the liquid guide 2 is placed in the accommodation space 13 of the heating element 1, the heating element 1 and the liquid guide 2 are loosely matched at both ends, and the middle is tight, which can meet the requirements of the liquid supply. At the same time, the contact between the heating element 1 and the liquid-conducting cotton is better, and the heating stability is good.
  • an atomizing device includes a housing 3 and the above-mentioned heating element.
  • a liquid storage bin 31 is arranged in the housing 3 , and a liquid channel 32 and an air channel are arranged on the housing 3 33.
  • the liquid channel 32 communicates with the liquid storage tank 31 and leads to the conducting liquid 2, so that the conducting liquid 2 conducts the liquid to the heating element 1 for heating and atomization.
  • the atomizing device adopts the above-mentioned heating components.
  • the heating element 1 has a large cross-sectional area of the end portion 12 and a small cross-sectional area of the middle portion 11 (in this way, the space at both ends of the accommodating space of the heating element is large, and the middle space is small), usually
  • the thickness of the conducting liquid 2 is uniform, so that the conducting liquid 2 is placed in the accommodating space 13 of the heating element 1, and the two ends generate heat.
  • the body 1 and the liquid guide 2 are loosely matched, and the middle is tight, so that the heating body 1 and the liquid guide cotton can be in better contact while satisfying the liquid supply, and the heating stability is good.
  • the atomizing device can be applied to electronic cigarettes.
  • the liquid storage tank 31 is used to store the liquid smoke. The liquid smoke is in contact with the liquid guide 2 through the liquid channel 32 , and is conducted to the heating element 1 through the liquid guide 2 for heating and atomization.

Abstract

本发明提供了一种雾化稳定的发热体、发热组件和雾化装置。发热体包括中部部分以及分别设在中部部分两端的端部部分，中部部分与端部部分相连，以在两端的端部部分通电时发热体发热，发热体中设有贯通端部部分和中部部分的容纳空间；容纳空间在中部部分处的截面积小于在端部部分处的截面积。发热组件包括导液体和上述的发热体。雾化装置包括壳体和上述的发热组件，壳体上设有液道和气道，液道通向导液体，以供导液体将液体传导到发热体加热雾化。该发热体、发热组件和雾化装置可以在满足供液的同时发热体和导液棉接触更好，加热稳定性好。

Description

雾化稳定的发热体、发热组件和雾化装置 技术领域
本发明涉及发热体技术领域，尤其是涉及一种雾化稳定的发热体、发热组件和雾化装置。
 背景技术
现在很多发热雾化组件采用导液棉做为导液件，例如导液棉绳，一般采用发热丝通过缠绕在导液棉绳的外围。由于导液棉的粗细是一致的，穿设在发热体的内孔中，液体通过导液棉绳从两端传导到发热体位置，发热体在导电后由于电阻的热效应产生热量，将液体雾化蒸发。
然而上述结构会出现问题：导液棉的局部发生炸油或糊芯，雾化稳定性不好，产生有害物质，影响消费者体验。
 技术问题
本发明要解决的技术问题在于，针对相关技术中的上述缺陷，提供一种雾化稳定的发热体、发热组件和雾化装置。
 技术解决方案
本发明解决其技术问题所采用的技术方案包括：提供一种发热体，包括中部部分以及分别设在所述中部部分两端的端部部分，所述中部部分与所述端部部分相连，以在两端的所述端部部分通电时所述发热体发热，所述发热体中设有贯通所述端部部分和所述中部部分的容纳空间；
所述容纳空间在所述中部部分处的截面积小于在所述端部部分处的截面积。
优选地，在第一径向上，所述容纳空间在所述中部部分处的径向尺寸小于在所述端部部分处的径向尺寸；在第二径向上，所述容纳空间在所述中部部分处的径向尺寸小于在所述端部部分处的径向尺寸，所述第一径向不平行于第二径向。
优选地，在第一径向上，所述容纳空间在所述中部部分处的径向尺寸小于在所述端部部分处的径向尺寸；在第二径向上，所述容纳空间在所述中部部分处的径向尺寸大于或等于在所述端部部分处的径向尺寸，所述第一径向不平行于所述第二径向。
优选地，所述容纳空间的截面积从所述端部部分向所述中部部分平缓变小过渡。
优选地，所述容纳空间的截面积从所述端部部分向所述中部部分呈阶梯式变小过渡。
优选地，所述发热体呈螺旋状。
优选地，所述发热体由发热丝绕卷而成。
优选地，所述发热体呈管状，所述中部部分上设有穿透到容纳空间的镂空结构。
本发明解决其技术问题所采用的技术方案包括：提供一种发热组件，包括导液体和上述的发热体，所述导液体设在所述容纳空间中，与所述发热体的内侧接触。
本发明解决其技术问题所采用的技术方案包括：提供一种雾化装置，包括壳体和上述的发热组件，所述壳体上设有液道和气道，所述液道通向所述导液体，以供所述导液体将液体传导到所述发热体加热雾化。
 有益效果
实施本发明的技术方案，至少具有以下的有益效果：该发热体、发热组件和雾化装置可以在满足供液的同时发热体和导液棉接触更好，加热稳定性好。
 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是本发明的第一种实施例的发热体的立体图。
图2是本发明的第一种实施例的发热组件的立体图，包括导液体和图1的发热体。
图3是图2的发热组件的正投影视图。
图4是图2的发热组件的爆炸图。
图5是图2的发热组件的剖视图。
图6是本发明的第二种实施例的发热组件的剖视图，包括导液体和发热体。
图7是本发明的第三种实施例的发热组件的剖视图，包括导液体和发热体，阴影部分表示发热体的中部部分的投影。
图8是图7的发热组件的制作方法的流程图，阴影部分表示发热体的中部部分的投影。
图9是本发明的第四种实施例的发热体的立体图。
图10是本发明的第四种实施例的发热组件的立体图，包括导液体和图9的发热体。
图11是图10的发热组件的爆炸图。
图12是图10的发热组件的制作方法的流程图。
图13是本发明的第五种实施例的发热体的立体图。
图14是本发明的第五种实施例的发热组件的立体图，包括导液体和图13的发热体。
图15是图14的发热组件的爆炸图。
图16是图14的发热组件的制作方法的流程图。
图17是本发明的第六种实施例的发热体的立体图。
图18是本发明的第六种实施例的发热组件的立体图，包括导液体和图17的发热体。
图19是图18的发热组件的爆炸图。
图20是图18的发热组件的剖视图。
图21是图18的发热组件的另一方向的剖视图。
图22是图18的发热组件的再一方向的剖视图。
图23是图18的发热组件的制作方法的流程图。
图24是本发明的一种实施例的雾化装置的爆炸图。
图25是图24的雾化装置的剖视图（箭头表示液体的流动方向）。
图26是图24的雾化装置的另一剖视图（箭头表示雾化气体的流动方向）。
图中的标号表示：发热体1，中部部分11，镂空结构111，环状部112，连接部113，端部部分12，容纳空间13，第一径向1a，第二径向1b，导液体2，壳体3，储液仓31，液道32，气道33，整形工具4。。
 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。需要理解的是，如果文中出现“前”、“后”、“上”、“下”、“左”、“右”、“纵”、“横”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“头”、“尾”等指示的方位或位置关系为基于附图所示的方位或位置关系、以特定的方位构造和操作，仅是为了便于描述本技术方案，而不是指示所指的装置或元件必须具有特定的方位，因此不能理解为对本发明的限制。还需要说明的是，除非另有明确的规定和限定，如果文中出现“安装”、“相连”、“连接”、“固定”、“设置”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。当一个元件被称为在另一元件“上”或“下”时，该元件能够“直接地”或“间接地”位于另一元件之上，或者也可能存在一个或更多个居间元件。如果文中出现术语“第一”、“第二”、“第三”等仅是为了便于描述本技术方案，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”等的特征可以明示或者隐含地包括一个或者更多个该特征。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。
以下描述中，为了说明而不是为了限定，提出了诸如特定系统结构、技术之类的具体细节，以便透彻理解本发明实施例。然而，本领域的技术人员应当清楚，在没有这些具体细节的其它实施例中也可以实现本发明。在其它情况中，省略对众所周知的系统、装置、电路以及方法的详细说明，以免不必要的细节妨碍本发明的描述。
经研究发现，导致背景技术中的问题的主要原因是：
1.当导液棉绳穿设在发热体内孔中，由于发热体的内径中间段和两端一样粗细，导液棉绳的粗细也是一致的，导液棉穿设在内孔中过紧时，两端的发热体内壁限制了导液棉的间隙，导致中间段发热体的供液变慢，而由于热传导和热辐射原理，中间段的发热体温度又较两端高，因此很容易造成中间段供液不足造成雾化温度过高产生糊芯产生有害物质。
2.当导液棉绳穿设在发热体内孔中偏松时，导液棉较为蓬松导液性能好，可以满足中间段的液体供应。但是由于导液棉这类导液体为软质材料，本身的外形并不规则，因此当导液棉绳和发热体配合较松时，会存在有局部位置发热体和棉绳接触不到，在使用过程中会产生炸油和糊芯的问题，影响消费者体验。
为了解决上述问题，本发明提供一种雾化稳定的发热体、发热组件和雾化装置。
参见图1-23，本发明的一些实施方式中的发热体1，包括中部部分11以及分别设在中部部分11两端的端部部分12，中部部分11与端部部分12相连，以在两端的端部部分12通电时发热体1因电阻的热效应而发热，发热体1中设有贯通端部部分12和中部部分11的用于容纳导液体2的容纳空间13；
容纳空间13在中部部分11处的截面积小于在端部部分12处的截面积。
发热体1的容纳空间13在端部部分12处的截面积大，在中部部分11处的截面积小(这样发热体1的容纳空间13的两端空间较大，中间空间较小），由于通常导液体2粗细是均匀的，这样将导液体2穿设在发热体1的容纳空间13中，两端位置发热体1和导液体2配合较松，中间较紧，可以在满足供液的同时发热体1和导液棉接触更好，加热稳定性好。该发热体1可应用于雾化装置中。
在一些实施例中，参见图1-5和9-16，在第一径向1a上，容纳空间13在中部部分11处的径向尺寸小于在端部部分12处的径向尺寸；在第二径向1b上，容纳空间13在中部部分11处的径向尺寸可以小于在端部部分12处的径向尺寸，第一径向1a不平行于第二径向1b。
在另一些实施例中，参见图7-8和17-23，在第一径向1a上，容纳空间13在中部部分11处的径向尺寸小于在端部部分12处的径向尺寸；在第二径向1b上，容纳空间13在中部部分11处的径向尺寸也可以大于或等于在端部部分12处的径向尺寸，第一径向1a不平行于第二径向1b。
其中，截面积为垂直于容纳空间的贯通方向的截面的面积，径向垂直于容纳空间的贯通方向。
优选地，第一径向1a和第二径向1b垂直于容纳空间13的贯通方向，第一径向1a垂直于第二径向1b。
图1-23展示了发热体1的不同结构，可以有螺旋结构（参见图1-8），也可以有管状结构（参见图9-23）。
参见图1-5，发热体1呈螺旋状。发热体1可以由发热丝绕卷而成。在一些实施例中，参见图1-5，发热体1采用丝状螺旋结构时，可以由发热丝卷绕成中间部分内径小而两端内径大的螺旋状，然后再将导液体2穿设在发热体1的容纳空间13中，形成发热体1缠绕在导液体2外侧的结构。
在另一些实施例中，参见图7-8，该结构可以采用正常的柱状的螺旋状加热体，通过整形工具4挤压整形发热体1的中部部分11的方式形成，达到发热体1和导液体2接触良好的目的。这样实施起来简单方便，尺寸可控，可大批量自动化生产。
参见图9-12，发热体1呈管状，中部部分11上设有从外侧穿透到容纳空间13的镂空结构111。中部部分11可以包括环状部112和连接部113，环状部112有至少两个，环状部112在容纳空间13贯通方向上间隔设置，相邻两个环状部112通过连接部113相连，相邻两个连接部113在周向上错开。
在一些实施例中，参见图12，也可以以拉伸的方式制得中部部分11细端部部分12粗的管状金属，再通过蚀刻、切割、冲压等等工艺制得具有镂空结构111的管状发热体1。
在另一些实施例中，参见图17-23，发热体1采用管状加热体，制作完成后，将导液体2穿设在管状加热体的容纳空间13中，然后通过整形治具，将圆形的管状加热体加热部分压制成跑道型、椭圆形、方形等形状。根据周长一定的情况，圆的面积最大，可以通过将发热体1发热区的中部部分11整形跑道型、椭圆形、方形等形状，这样发热体1中间发热区域内径的截面积小于端部部分12区域内径截面积，与导液体2组合时中部部分11的棉会较紧，端部部分12会比较松，可以达到端部部分12松进液快，中间紧接触良好的效果。
在上述实施例中，参见图1-5和13-16，端部部分12向中部部分11过渡的部分呈倾斜状，容纳空间13的截面积从端部部分12向中部部分11可以平缓变小过渡。
此外，在上述实施例中，参见图6和9-12，容纳空间13的截面积从端部部分12向中部部分11也可以呈阶梯式变小过渡。
本发明的发热组件，包括导液体2和上述的发热体1，图1-23展示了上述各种实施例的发热体1与导液体组合的结构，导液体2配合设在发热体1的容纳空间13中，与发热体1的内侧接触。
该发热组件在用于雾化时，导液体2与液体接触，将液体传导到发热体1加热雾化。
导液体2可使用导液棉，例如导液棉绳。该发热组件采用上述的发热体1，发热体1具端部部分12的截面积大，中部部分11截面积小(这样发热体1的容纳空间13的两端空间较大，中间空间较小），通常导液体2粗细是均匀的，这样将导液体2穿设在发热体1的容纳空间13中，两端位置发热体1和导液体2配合较松，中间较紧，可以在满足供液的同时发热体1和导液棉接触更好，加热稳定性好。
参见图24-26，本发明的一种实施方式的雾化装置，包括壳体3和上述的发热组件，壳体3中设有储液仓31，壳体3上设有液道32和气道33，液道32连通储液仓31并通向导液体2，以供导液体2将液体传导到发热体1加热雾化。该雾化装置采用上述的发热组件，发热体1具端部部分12的截面积大，中部部分11截面积小(这样发热体的容纳空间的两端空间较大，中间空间较小），通常导液体2粗细是均匀的，这样将导液体2穿设在发热体1的容纳空间13中，两端位置发热
体1和导液体2配合较松，中间较紧，可以在满足供液的同时发热体1和导液棉接触更好，加热稳定性好。该雾化装置可以应用于电子烟中，储液仓31用于装烟液，烟液经液道32与导液体2接触，经导液体2传导到发热体1加热雾化。
以上所述仅为本发明的优选实施例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改、组合和变化。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的权利要求范围之内。

Claims (10)

  1. 一种发热体（1），其特征在于，包括中部部分（11）以及分别设在所述中部部分（11）两端的端部部分（12），所述中部部分（11）与所述端部部分（12）相连，以在两端的所述端部部分（12）通电时所述发热体（1）发热，所述发热体（1）中设有贯通所述端部部分（12）和所述中部部分（11）的容纳空间（13）；
    所述容纳空间（13）在所述中部部分（11）处的截面积小于在所述端部部分（12）处的截面积。
  2. 根据权利要求1所述的发热体（1），其特征在于，在第一径向（1a）上，所述容纳空间（13）在所述中部部分（11）处的径向尺寸小于在所述端部部分（12）处的径向尺寸；
    在第二径向（1b）上，所述容纳空间（13）在所述中部部分（11）处的径向尺寸小于在所述端部部分（12）处的径向尺寸，所述第一径向（1a）不平行于第二径向（1b）。
  3. 根据权利要求1所述的发热体（1），其特征在于，在第一径向（1a）上，所述容纳空间（13）在所述中部部分（11）处的径向尺寸小于在所述端部部分（12）处的径向尺寸；
    在第二径向（1b）上，所述容纳空间（13）在所述中部部分（11）处的径向尺寸大于或等于在所述端部部分（12）处的径向尺寸，所述第一径向（1a）不平行于所述第二径向（1b）。
  4. 根据权利要求1所述的发热体（1），其特征在于，所述容纳空间（13）的截面积从所述端部部分（12）向所述中部部分（11）平缓变小过渡。
  5. 根据权利要求1所述的发热体（1），其特征在于，所述容纳空间（13）的截面积从所述端部部分（12）向所述中部部分（11）呈阶梯式变小过渡。
  6. 根据权利要求1-5任一项所述的发热体（1），其特征在于，所述发热体（1）呈螺旋状。
  7. 根据权利要求4所述的发热体（1），其特征在于，所述发热体（1）由发热丝绕卷而成。
  8. 根据权利要求1-5任一项所述的发热体（1），其特征在于，所述发热体（1）呈管状，所述中部部分（11）上设有穿透到容纳空间（13）的镂空结构（111）。
  9. 一种发热组件，包括导液体（2）和根据权利要求1-8任一项所述的发热体（1），所述导液体（2）设在所述容纳空间（13）中，与所述发热体（1）的内侧接触。
  10. 一种雾化装置，包括壳体（3）和根据权利要求9所述的发热组件，所述壳体（3）上设有液道（32）和气道（33），所述液道（32）通向所述导液体（2），以供所述导液体（2）将液体传导到所述发热体（1）加热雾化。
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