WO2023131338A1 - 一种发热体 - Google Patents

一种发热体 Download PDF

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Publication number
WO2023131338A1
WO2023131338A1 PCT/CN2023/071541 CN2023071541W WO2023131338A1 WO 2023131338 A1 WO2023131338 A1 WO 2023131338A1 CN 2023071541 W CN2023071541 W CN 2023071541W WO 2023131338 A1 WO2023131338 A1 WO 2023131338A1
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WO
WIPO (PCT)
Prior art keywords
heating
heating element
sectional area
conductive
cross
Prior art date
Application number
PCT/CN2023/071541
Other languages
English (en)
French (fr)
Inventor
张海波
翟公高
邹志安
Original Assignee
深圳市卓力能技术有限公司
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
Priority claimed from CN202220053499.2U external-priority patent/CN217446670U/zh
Priority claimed from CN202210022774.9A external-priority patent/CN116439418A/zh
Application filed by 深圳市卓力能技术有限公司 filed Critical 深圳市卓力能技术有限公司
Publication of WO2023131338A1 publication Critical patent/WO2023131338A1/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
    • 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
    • A24F40/42—Cartridges or containers for 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
    • A24F40/40—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
    • A24F40/50—Control or monitoring

Definitions

  • the present application belongs to the technical field of electronic atomization, and in particular relates to a heating element.
  • the heating nets used in electronic atomizers are usually provided with conductive areas at both ends of the heating area in the middle, and the two conductive areas are electrically connected to the electrodes respectively. If it is too large, the heat generated in the heating area will be conducted to the conductive area too much, resulting in poor actual heating efficiency. Moreover, the existing heating nets are all manufactured individually one by one, and the production efficiency is low.
  • the purpose of the present application is to provide a heating element, aiming to solve the technical problem of poor heating efficiency in electronic atomizers at least to a certain extent.
  • the present application provides a heating body, the heating body is a flat sheet structure, including a heating part, a conductive part extending along the two ends of the heating part, and extending from the conductive part to a direction away from the heating part An extension part is formed, the cross-sectional area of the conductive part gradually increases from one end close to the heating part to one end close to the extension part, and the minimum cross-sectional area of the conductive part is larger than that of the extension part The cross-sectional area and the cross-sectional area of the heating section in the heating part.
  • the extension has a width greater than 0.15 mm and less than 3 mm.
  • At least one hollow hole is opened in a region of the conductive part close to the heat generating part.
  • the two conductive parts are located at both ends of the heating element along the transverse direction, and the heating parts are grid-shaped, stripe-shaped, S-shaped, zigzag-shaped, wave-shaped, zigzag-shaped, spiral-shaped, Either circular or rectangular.
  • At least one fixing portion is respectively connected to two sides of the heating portion in the longitudinal direction.
  • the heating part is a heating wire bent in an S shape or a continuous S shape, and includes a plurality of first heating sections, the first heating sections are arranged at intervals in the transverse direction, extend in the longitudinal direction, and are adjacent to each other. One ends of the two first heating sections are connected together through the second heating section, and the other ends are separated from each other, and the two free ends of the heating parts are respectively connected to the two conductive parts; the first heating section
  • the cross-sectional area is the same as that of the second heating section, and is smaller than the minimum cross-sectional area of the conductive part.
  • the heating part is a heating wire bent in an S shape or a continuous S shape, and includes a plurality of first heating sections, the first heating sections are arranged at intervals in the longitudinal direction, extend in the transverse direction, and are adjacent to each other. One ends of the two first heating sections are connected together through the second heating section, and the other ends are separated from each other, and the two free ends of the heating parts are respectively connected to the two conductive parts; the first heating section
  • the cross-sectional area is the same as that of the second heating section, and is smaller than the minimum cross-sectional area of the conductive part.
  • the heating part includes several rectangular heating wires, and several heating wires are arranged at intervals in the transverse direction, and are sequentially connected in series between the two conductive parts; each of the heating wires includes two The first heating section extending longitudinally and parallel to each other, the two ends of the two first heating sections are correspondingly connected by the second heating section; the cross-sectional area of the first heating section and the second heating section are the same , and smaller than the minimum cross-sectional area of the conductive part.
  • each of the second heating segments is connected with one of the fixing parts.
  • the fixing portion extends longitudinally.
  • a part of the fixing portion extends obliquely along one end close to the heating element, and another part of the fixing portion extends obliquely along the other end close to the heating element.
  • the second heating section is in the shape of an arc with a central part protruding outward.
  • a fixed portion is formed extending from the connection between the conductive portion and the first heating section.
  • the heating part includes several diamond-shaped heating wires, and several of the heating wires are serially connected in series between the two conductive parts along the transverse direction; the cross-sectional area of the heating wires is smaller than that of the conductive parts minimum cross-sectional area.
  • the short axis direction of several heating wires is arranged along the transverse direction
  • the long axis direction is arranged along the longitudinal direction
  • the two ends of the long axis direction of each heating wire are respectively connected to one of the fixing parts.
  • the extended parts at both ends of the heating element are connected to the frame area after the etching of the metal sheet, which can facilitate the realization of mass production; While the part has sufficient support strength, when the heating element is energized and heats up, the heat generated by the conductive part is small, and because the end connecting the conductive part and the heating part is a small end, the conduction of heat from the heating part to the direction of the conductive part is reduced , so that the generated heat is concentrated in the heating part area, so that the atomization effect is better, and the heat utilization efficiency is improved.
  • Fig. 1 is the structural representation of an embodiment of the heating element of the present application
  • Fig. 2 is a structural schematic diagram during mass production of the heating element shown in Fig. 1;
  • Fig. 3 is a schematic diagram of the actual assembly of the heating element shown in Fig. 1;
  • Fig. 4 is an alternative embodiment of the heating element shown in Fig. 1;
  • Fig. 5 is a schematic diagram of the actual assembly of the heating element shown in Fig. 4;
  • Fig. 6 is a schematic structural view of another embodiment of the heating element of the present application.
  • Fig. 7 is a schematic structural view of another embodiment of the heating element of the present application.
  • Fig. 8 is a schematic structural diagram of another embodiment of the heating element of the present application.
  • first and second are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as “first” and “second” may explicitly or implicitly include one or more of these features.
  • “plurality” means two or more, unless otherwise specifically defined.
  • the embodiment of the present application provides a heating element 100
  • the heating element 100 is a flat sheet structure, including the heating part 10, the conductive part 20 formed along the two ends of the heating part 10, and the conductive part 20 extends away from the heating part 10 to form an extension part 30, the cross-sectional area of the conductive part 20 gradually increases from one end close to the heating part 10 to one end close to the extension part 30, and the minimum cross-sectional area of the conductive part 20 is larger than The cross-sectional area of the extension part 30 and the cross-sectional area of the heating section in the heating part 10 . That is to say, the minimum width d2 of the conductive portion 20 is larger than the width d3 of the extension portion 30 and the width d1 of the heat generating section of the heat generating portion 10 .
  • the heating element 100 is assembled into the atomization assembly of the atomizer, attached or embedded on the atomization surface of the oil guide in the atomization assembly, and the conductive part 20 is electrically connected to the electrode of the atomizer. , so that the electrodes are electrically connected to the power supply and the control circuit, and the control circuit controls the power supply to supply power to the heating element 100, so that the heating part 10 of the heating element 100 heats and atomizes the atomized liquid absorbed in the oil guide, To produce an aerosol that can be inhaled by the user.
  • the heating element 100 is formed as a whole by etching a metal sheet, such as a nickel sheet, a nickel-chromium sheet, an iron-chromium-aluminum sheet, a stainless steel sheet, a metal titanium sheet or an alloy sheet and other conductive metal parts, and its material can be determined according to Depending on the actual situation, the thickness of the heating element 100 is 0.05-0.2 mm, for example, 0.1 mm.
  • a metal sheet such as a nickel sheet, a nickel-chromium sheet, an iron-chromium-aluminum sheet, a stainless steel sheet, a metal titanium sheet or an alloy sheet and other conductive metal parts, and its material can be determined according to Depending on the actual situation, the thickness of the heating element 100 is 0.05-0.2 mm, for example, 0.1 mm.
  • each heating element 100 formed in the molding area is connected to the frame area 102 through the extensions 30 at both ends, so that automation can be realized from the metal sheet Cutting off to obtain a plurality of heating elements 100 to realize mass production.
  • the frame area 102 is formed with rectangular or triangular connection points corresponding to the positions of the extension parts 30, the extension parts 30 are connected with the frame area 102 through the connection points, and the contact width between the extension parts 30 and the connection points is greater than 0.15mm and less than 3mm, for example, 2mm, thus reducing the cutting marks on the extension part 30, and the cutting marks are located on the extension part 30, so that the cutting marks avoid the area in contact with the electrode, ensuring the stable contact between the conductive part 20 and the electrode .
  • the heating element 100 of the present application defines the gradient structure of the cross-sectional area of the conductive part 20, while ensuring that the conductive part 20 has sufficient support strength for the heating part 10, so that when the heating element 100 is energized and generates heat, the conductive part 20 generates less heat, and Since the end of the conductive part 20 connected to the heating part 10 is a smaller end, the conduction of the heat of the heating part 10 to the direction of the conductive part 20 is reduced, and the generated heat is concentrated in the heating part 10 area, so that the atomization effect is better, And improved heat utilization efficiency.
  • the minimum cross-sectional area of the conductive part 20 is smaller than the cross-sectional area of the heating section in the heating part 10, the resistance at the small end of the conductive part 20 will be too large, and when the heating element 100 is energized and heated, the conduction The small end of the part 20 generates a lot of heat. Under the same power condition, the heating area becomes larger, and the heat generated by the heating element 100 is dispersed to the conductive part 20 and the extension part 30. The heat is not concentrated, resulting in low atomization effect and affecting The taste of the aerosol produced by atomization.
  • the conductive part 20 is rectangular, although the resistance of the conductive part 20 is low at this time, it cannot generate heat, but because its connection area with the heating part 10 is too large, The heat generated by the heating part 10 is transmitted to the conductive part 20, resulting in excessive heat loss, and there is also the problem of low atomization effect due to lack of heat concentration, which affects the taste of the aerosol produced by atomization.
  • the end of the conductive part 20 away from the heating part 10 is in the shape of an arc, thereby forming a circular contact area 21 that is adapted to the size of the contacted electrode, thus ensuring that the conductive part 20 is in contact with the electrode.
  • the conductive portion 20 may be provided with at least one hollow hole at a position outside the contact area 21 to further reduce heat conduction from the heat generating portion 10 to the conductive portion 20 .
  • the heating part 10 is respectively connected with at least one fixing part 13 on both sides in the longitudinal direction.
  • the heating element 100 of this application is assembled into the atomizer, the heating element 100 is clamped and fixed by the oil guide body and the support body 300 in the up and down direction to form a heating element.
  • the support body 300 is used to support the conductive part 20 and the fixing part 13, so that the heating part 10 is completely attached to the oil guide body Above, keep the heating part 10 flat and ensure that the heating part 10 is not separated from the oil guiding body.
  • the ends of the fixing parts 13 on both sides can protrude from the edge of the support body 300, and the protruding part is clamped and clamped to both sides of the support body 300 by bending the protruding part toward the direction of the support body 300, so as to support and better fix the heating element 100, so that the heat generating part 10 is not easily deformed and displaced.
  • this embodiment takes the positions of the two conductive parts 20 as an example to be located at both ends of the heating element 100 along the lateral direction.
  • the heating part 10 can be in various shapes with relatively uniform heat generation, such as a grid shape or a stripe shape. , S-shape, zigzag, wave, zigzag, spiral, circle or rectangle.
  • the heating part 10 of this embodiment is a heating wire 14 bent in an S shape or a continuous S shape, including a plurality of first heating sections 11, and a plurality of first heating sections 11 are arranged at intervals along the transverse direction, and basically Extending in the longitudinal direction, and one end of two adjacent first heating sections 11 is connected together by the second heating section 12, and the other ends are separated from each other, and the two free ends of the heating part 10 are respectively connected to the two conductive parts 20, namely The end of the outermost first heating segment 11 in the lateral direction away from the second heating segment 12 is connected to the conductive part 20 , and the first heating segment 11 and the conductive part 20 transition smoothly.
  • the cross-sectional area of the first heating section 11 and the second heating section 12 is the same, and a plurality of first heating sections 11 are arranged at intervals along the transverse direction, which is conducive to the uniform distribution of heat in the lateral direction, that is, the first heating section 11 and the second heating section
  • the width d1 of the segment 12 is smaller than the minimum width d2 of the conductive part 20, so that the conductive part 20 generates less heat when the heating element 100 is energized and heats up, and the heat generated when the heating element 100 generates heat is concentrated in the heating part 10 area.
  • the second heating section 12 is in the shape of an arc protruding in the middle along the longitudinal direction, so as to improve the uniform distribution of heat along the longitudinal direction when the heating part 10 generates heat; each second heating section 12 is connected with a fixed
  • the fixed part 13 extends longitudinally to improve the support strength of the heating part 10 .
  • the number of fixing parts 13 can also be selected according to the needs of the situation, for example, while ensuring the support strength of the heating part 10 , one fixing part 13 is provided at intervals of one second heating segment 12 .
  • FIG. 4 is an alternative embodiment of the heating element 100 shown in FIG. 1.
  • the fixing part 13 extends obliquely along one end close to the heating element 100
  • another part of the fixing part 13 extends obliquely along the other end close to the heating element 100 .
  • this embodiment is aimed at the atomizer without the structure of the support body 300, that is, the heating element 100 is directly installed on the top of the atomization base 200, since the two sides of the atomization chamber 201 need to penetrate to communicate with The air outlet pipe of the atomizer is connected, so the top surface of the atomization base 200 is divided into left and right support surfaces by the atomization chamber 201 .
  • the fixing part 13 located on the left half of the heating element 100 extends obliquely to the left, so as to be supported by the left support surface of the atomization base 200
  • the fixing part 13 located on the right half of the heating element 100 extends obliquely to the right, thereby being supported by the atomization base 200.
  • the right support surface of the atomizing base 200 is supported, so that the conductive part 20 and the fixed part 13 are supported by the top surface of the atomizing base 200, so that the heating part 10 is completely attached to the oil guide body, and the heating part 10 is kept flat , to ensure that the heat generating part 10 is not separated from the oil guiding body.
  • FIG. 6 is a schematic structural view of another embodiment of the heating element 100 of the present application.
  • the heating part 10 is S-shaped or continuous S A curved heating wire 14, including a number of first heating sections 11, the number of first heating sections 11 are arranged at intervals in the longitudinal direction, and basically extend in the transverse direction, and one end of two adjacent first heating sections 11 passes through the second heating section 12
  • the two free ends of the heating part 10 are respectively connected to the two conductive parts 20; that is, the first heating section 11 on the outermost longitudinal direction is far away from the end connected to the second heating section 12 and the conductive section 12.
  • the first heating section 11 and the conductive section 20 are connected smoothly.
  • the cross-sectional area of the first heating section 11 and the second heating section 12 is the same, and a plurality of first heating sections 11 are arranged at intervals along the longitudinal direction, which is conducive to the uniform distribution of heat in the longitudinal direction, that is, the first heating section 11 and the second heating section
  • the width d1 of the segment 12 is smaller than the minimum width d2 of the conductive part 20, so that the conductive part 20 generates less heat when the heating element 100 is energized and heats up, and the heat generated when the heating element 100 generates heat is concentrated in the heating part 10 area.
  • the second heating section 12 is in the shape of an arc protruding outward in the middle along the lateral direction, so as to improve the uniform distribution of heat along the lateral direction when the heating part 10 generates heat.
  • the fixing portion 13 connected to the second heating section 12 may extend longitudinally, or the fixing portion 13 on one side of the heating element 100 may extend obliquely toward the left, and the fixing portion 13 on the other side of the heating element 100 may Extends obliquely to the right.
  • a fixing part 13 is extended at the junction of the conductive part 20 and the first heating section 11 , and the fixing part 13 on the second heating section 12 can improve the support strength and stability of the heating part 10 .
  • FIG. 7 is a structural schematic diagram of another embodiment of the heating element 100 of the present application.
  • the heating part 10 in the heating element 100 of this embodiment includes several rectangular heating wires 14, and the plurality of heating wires 14 are arranged at intervals along the lateral direction. And sequentially connected in series between the two conductive parts 20; each heating wire 14 includes two first heating segments 11 extending longitudinally and parallel to each other, and the two ends of the first heating segments 11 respectively pass through the second heating segment 12 Corresponding connection;
  • the second heating section 12 is a straight section, and each second heating section 12 is connected with a fixing portion 13 extending longitudinally.
  • the cross-sectional area of the first heating section 11 and the second heating section 12 is the same, and a plurality of first heating sections 11 are arranged at intervals along the transverse direction, which is conducive to the uniform distribution of heat in the lateral direction, that is, the first heating section 11 and the second heating section
  • the width d1 of the segment 12 is smaller than the minimum width d2 of the conductive part 20, so that the conductive part 20 generates less heat when the heating element 100 is energized and heats up, and the heat generated when the heating element 100 generates heat is concentrated in the heating part 10 area.
  • two adjacent heating wires 14 are connected by a series part 15, and both ends of the series part 15 are respectively connected to the middle part of the first heating segment 11 on the corresponding side of the two adjacent heating wires 14, That is, the straight line where the series part 15 is located separates several heating wires 14 into two symmetrical parts up and down.
  • the smooth transition between the first heating section 11 and the second heating section 12 is conducive to the uniform distribution of heat, and avoids the accumulation and concentration of heat at sharp corners to cause frying oil.
  • FIG. 8 is a structural schematic diagram of another embodiment of the heating element 100 of the present application.
  • the heating part 10 of the heating element 100 of this embodiment includes several rhombus-shaped heating wires 14 , and the plurality of heating wires 14 are connected in series in two directions along the horizontal direction. Between the two conductive parts 20, the cross-sectional area of the heating wire 14 is smaller than the smallest cross-sectional area of the conductive part 20.
  • the heating wire 14 includes two first heating sections 11 parallel to each other and two second heating sections 12 parallel to each other, the two first heating sections 11 and the two second heating sections 12 together form a diamond-shaped heating wire14.
  • the cross-sectional area of the first heating section 11 and the second heating section 12 is the same, that is, the width of the first heating section 11 and the second heating section 12 is d1, which is smaller than the minimum width d2 of the conductive part 20, so that the heating element 100 is energized
  • the conductive part 20 generates less heat, so that the heat generated by the heating element 100 is concentrated in the area of the heating part 10 .
  • the short axis direction of several heating wires 14 is arranged along the horizontal direction, and the long axis direction is arranged along the longitudinal direction, and in this embodiment, several heating wires 14 are directly connected in series, and the connection points between any two adjacent heating wires 14 are located on the heating body 100 Along the longitudinal centerline, the upper and lower parts along the longitudinal direction have the same amount of heat when the heating wire 14 generates heat, which is conducive to the uniform distribution of heat.
  • several heating wires 14 may also be arranged at intervals and connected in series sequentially.
  • each heating wire 14 is connected with a fixing part 13 at both ends of the long axis direction, and the fixing part 13 extends in the longitudinal direction, that is to say, each fixing part 13 is connected to the first heating section 11 It forms a Y-shaped structure with the second heating section 12, thereby improving the supporting strength of the heating section 10.

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Abstract

一种发热体（100），发热体（100）为金属片通过蚀刻形成的平板片状结构，包括发热部（10）、沿发热部（10）两端延伸形成的导电部（20）、以及由导电部（20）向远离发热部（10）方向延伸形成的延伸部（30），导电部（20）的横截面积由靠近发热部（10）的一端向靠近延伸部（30）的一端逐渐增大延伸，且导电部（20）的最小横截面积大于延伸部（30）的横截面积以及发热部（10）中发热段的横截面积。通过限定导电部（20）横截面积的渐变结构，在保证导电部（20）对发热部（10）有足够支撑强度的同时，使得发热体（100）在通电发热时，导电部（20）发热量少，同时减少了发热部（10）的热量向导电部（20）方向的传导，使产生的热量集中于发热部（10）区域。

Description

一种发热体
本申请要求于2022年1月10日在国家知识产权局提交的、申请号为202210022774.9、发明名称为“一种发热体”的中国专利申请的优先权，以及要求于2022年1月10日在国家知识产权局提交的、申请号为202220053499.2、发明名称为“一种发热体”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请属于电子雾化技术领域，具体涉及一种发热体。
 背景技术
目前电子雾化器所采用的发热网，通常是在中部发热区域的两端设置导电区域，两个导电区域分别与电极电连接，由于现有发热网的发热区域和两端导电区域的连接面积过大，发热区域所产生的热量过多的向导电区域传导，导致实际发热效率较差。而且，现有的发热网都是单独一个一个制造，生产效率低。
技术问题
本申请的目的在于：提供一种发热体，旨在至少一定程度上解决电子雾化器中的发热效率较差的技术问题。
 技术解决方案
为解决上述技术问题，本申请采用的技术方案是：
本申请提供了一种发热体，所述发热体为平板片状结构，包括发热部、沿所述发热部两端延伸形成的导电部、以及由所述导电部向远离所述发热部方向延伸形成的延伸部，所述导电部的横截面积由靠近所述发热部的一端向靠近所述延伸部的一端逐渐增大延伸，且所述导电部的最小横截面积大于所述延伸部的横截面积以及所述发热部中发热段的横截面积。
在一个实施例中，所述延伸部的宽度大于0.15mm，且小于3mm。
在一个实施例中，所述导电部靠近所述发热部的区域还开设有至少一个镂空孔。
在一个实施例中，两个所述导电部位于所述发热体沿横向的两端，所述发热部为网格状、条纹状、S形、折线形、波浪形、锯齿形、螺旋形、圆形或矩形中任意一种。
在一个实施例中，所述发热部在位于纵向的两侧分别连接有至少一个固定部。
在一个实施例中，所述发热部为呈S形或连续S形弯曲的发热丝，包括若干第一发热段，所述若干第一发热段沿横向间隔设置，并沿纵向延伸，且相邻两个所述第一发热段的一端通过第二发热段连接在一起，另一端相互隔开，所述发热部的两个自由端分别连接于两个所述导电部；所述第一发热段和所述第二发热段的横截面积相同，并小于所述导电部的最小横截面积。
在一个实施例中，所述发热部为呈S形或连续S形弯曲的发热丝，包括若干第一发热段，所述若干第一发热段沿纵向间隔设置，并沿横向延伸，且相邻两个所述第一发热段的一端通过第二发热段连接在一起，另一端相互隔开，所述发热部的两个自由端分别连接于两个所述导电部；所述第一发热段和所述第二发热段的横截面积相同，并小于所述导电部的最小横截面积。
在一个实施例中，所述发热部包括若干矩形状的发热丝，若干所述发热丝沿横向间隔设置，并依次串联于两个所述导电部之间；每一所述发热丝包括两个沿纵向延伸并平行相对的第一发热段，两个所述第一发热段的两端分别通过第二发热段对应连接；所述第一发热段和所述第二发热段的横截面积相同，并小于所述导电部的最小横截面积。
在一个实施例中，每一所述第二发热段连接有一个所述固定部。
在一个实施例中，所述固定部沿纵向延伸。
在一个实施例中，其中一部分所述固定部沿靠近所述发热体的一端倾斜延伸，另一部分所述固定部沿靠近所述发热体的另一端倾斜延伸。
在一个实施例中，所述第二发热段为中部向外凸出的弧形状。
在一个实施例中，所述导电部与所述第一发热段的连接处还延伸形成有一个所述固定部。
在一个实施例中，所述发热部包括若干菱形状的发热丝，若干所述发热丝沿横向依次串联于两个所述导电部之间；所述发热丝的横截面积小于所述导电部的最小横截面积。
在一个实施例中，若干所述发热丝的短轴方向沿横向设置，长轴方向沿纵向设置，且每一所述发热丝的长轴方向两端分别连接一个所述固定部。
 有益效果
根据本申请的发热体，通过在发热体两端的延伸部来于金属片蚀刻后的边框区连接，可便于实现批量化生产；通过限定导电部横截面积的渐变结构，在保证导电部对发热部有足够支撑强度的同时，使得发热体在通电发热时，导电部发热量少，且由于导电部与发热部连接的一端为较小端，因此减少了发热部的热量向导电部方向的传导，使产生的热量集中于发热部区域，使雾化效果更好，并提高了热量利用效率。
 附图说明
为了更清楚地说明本申请实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本申请发热体一实施例的结构示意图；
图2为图1所示发热体的批量制造时的结构示意图；
图3为图1所示发热体的实际组装示意图；
图4为图1所示发热体的替换实施例；
图5为图4所示发热体的实际组装示意图；
图6为本申请发热体另一实施例的结构示意图；
图7为本申请发热体又一实施例的结构示意图；
图8为本申请发热体再一实施例的结构示意图。
 本发明的实施方式
下面详细描述本申请的实施例，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，旨在用于解释本申请，而不能理解为对本申请的限制，基于本申请中的实施例，本领域普通技术人员在没有作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。
在本申请的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“顺时针”、“逆时针”、“轴向”、“周向”、“径向”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，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。
此外，术语“第一”、“第二”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”的特征可以明示或者隐含地包括一个或者更多个该特征。在本申请的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。
请参阅图1所示，本申请实施例提供了一种发热体100，发热体100为平板片状结构，包括发热部10、沿发热部10两端延伸形成的导电部20、以及由导电部20向远离发热部10方向延伸形成的延伸部30，导电部20的横截面积由靠近发热部10的一端向靠近延伸部30的一端逐渐增大延伸，且导电部20的最小横截面积大于延伸部30的横截面积以及发热部10中发热段的横截面积。也就是说，导电部20的最小宽度d2大于延伸部30的宽度d3以及发热部10中发热段的宽度d1。
在实际应用时，发热体100组装到雾化器的雾化组件中，贴合或嵌设于雾化组件中导油体的雾化面上，导电部20与雾化器的电极接触电连接，从而通过电极与供电电源和控制电路电连接，由控制电路控制供电电源为发热体100进行供电，以使发热体100的发热部10对导油体中吸收的雾化液进行加热雾化，以产生可供使用者吸食的气溶胶。
本实施例发热体100是由金属片通过蚀刻方式形成的一个整体，例如采用镍片、镍铬片、铁铬铝片、不锈钢片、金属钛片或合金片等导电金属件，其材料可根据实际情况进行选择，发热体100的厚度为0.05-0.2mm，例如，为0.1mm。
结合图2所示，在实际制造时，选用一整块大尺寸的金属片，将金属片划分为蚀刻区101，由蚀刻区101围成并与发热体100相对应的成型区、围绕各成型区和蚀刻区101的边框区102，当将蚀刻区101去除后，成型区所形成的各发热体100分别通过其两端的延伸部30与边框区102连接在一起，如此可实现自动化从金属片上切割下来获得多个发热体100，实现批量化生产。
具体地，边框区102对应各延伸部30位置形成有矩形或三角形的连接点，延伸部30通过连接点与边框区102连接一起，且延伸部30与连接点之间的接触宽度为大于0.15mm且小于3mm，例如，为2mm，如此减少了延伸部30上的切割痕迹，并且切割痕迹位于延伸部30上，使切割痕迹避开了与电极接触的区域，保证了导电部20与电极稳定接触。
本申请发热体100通过限定导电部20横截面积的渐变结构，在保证导电部20对发热部10有足够支撑强度的同时，使得发热体100在通电发热时，导电部20发热量少，且由于导电部20与发热部10连接的一端为较小端，因此减少了发热部10的热量向导电部20方向的传导，使产生的热量集中于发热部10区域，使雾化效果更好，并提高了热量利用效率。
应当理解的是，若导电部20的最小横截面积小于发热部10中发热段的横截面积，则会造成导电部20较小端位置阻值过大，在发热体100通电发热时，导电部20较小端位置发热产生大量热量，在相同功率条件下，发热区域变大，发热体100所产生的热量分散到导电部20和延伸部30上，热量不集中造成雾化效果低，影响雾化所产生气溶胶的口感。
若导电部20靠近发热段的一端横截面积过大，例如导电部20为矩形状，虽然此时导电部20的阻值低，无法发热，但是由于其与发热部10的连接面积过大，造成发热部10所产生的热量传导到导电部20，导致热损耗过高，同样存在热量不集中造成雾化效果低问题，影响雾化所产生气溶胶的口感。
其中，为方便导电部20与电极的接触连接，导电部20远离发热部10的一端为圆弧状，从而形成与所接触电极大小适配的圆形接触区域21，如此保证了导电部20与电极接触面积以及发热体100的整体强度。导电部20于接触区域21之外的位置可开设有至少一个镂空孔，以进一步地减少发热部10向导电部20方向传导热量。
结合图3所示，为了给发热部10提供足够的支撑强度，本实施例中发热部10在位于纵向的两侧分别连接有至少一个固定部13。本申请发热体100在组装到雾化器中时，通过导油体与支撑体300上下方向夹持固定发热体100以形成发热组件，该发热组件安装在雾化底座200的顶端，支撑体300对应发热部10的位置开设有与雾化底座200顶端雾化腔201连通的通道，利用支撑体300来对导电部20和固定部13进行支撑，以使发热部10完全贴设于导油体上，保持发热部10平整，确保发热部10与导油体不分离。
两侧固定部13的末端可凸出支撑体300的边缘，通过将凸出部分向支撑体300方向弯折而夹持卡紧到支撑体300的两侧，以支撑和更好地固定发热体100，使发热部10不易变形和位移。
为便于说明，本实施例以两个导电部20所处位置为位于发热体100沿横向的两端进行举例说明，发热部10可以是各种发热较为均匀的形状，例如网格状、条纹状、S形、折线形、波浪形、锯齿形、螺旋形、圆形或矩形。
具体地，参照图1所示，本实施例发热部10为呈S形或连续S形弯曲的发热丝14，包括若干第一发热段11，若干第一发热段11沿横向间隔设置，并基本沿纵向延伸，且相邻两个第一发热段11的一端通过第二发热段12连接在一起，另一端相互隔开，发热部10的两个自由端分别连接于两个导电部20，即沿横向最外侧的第一发热段11远离与第二发热段12连接的末端与导电部20连接，第一发热段11与导电部20圆滑过渡。
第一发热段11和第二发热段12的横截面积相同，配合若干第一发热段11沿横向依次间隔分布，有利于热量在横向方向的均匀分布，即第一发热段11和第二发热段12的宽度d1小于导电部20的最小宽度d2，以使发热体100通电发热时导电部20发热量少，使发热体100发热时所产生的热量集中在发热部10区域。
在本实施例中，第二发热段12为中部沿纵向向外凸出的弧形状，以提高发热部10发热时的沿纵向方向的热量均匀分布；每一第二发热段12连接有一个固定部13，固定部13沿纵向延伸，以提高对发热部10的支撑强度。在其他实施例中，固定部13的数量也可根据情况需要进行选择，例如，在保证对发热部10支撑强度的同时，间隔一个第二发热段12设置一个固定部13。
图4为图1所示发热体100的替换实施例，本实施例发热体100与图1所示发热体100的主要区别在于：为了给发热部10提供足够的支撑强度，本实施例其中一部分固定部13沿靠近发热体100的一端倾斜延伸，另一部分固定部13沿靠近发热体100的另一端倾斜延伸。
结合图5所示，本实施例针对的是没有设置支撑体300结构的雾化器，即发热体100是直接安装在雾化底座200的顶端，由于雾化腔201的两侧需要贯穿以与雾化器的出气管连通，因此雾化底座200的顶面由雾化腔201分隔成左右两支撑面。具体的说，位于发热体100左半部分的固定部13向左边倾斜延伸，从而由雾化底座200的左支撑面支撑，位于发热体100右半边部分的固定部13向右倾斜延伸，从而由雾化底座200的右支撑面支撑，如此利用雾化底座200的顶面来对导电部20和固定部13进行支撑，以使发热部10完全贴设于导油体上，保持发热部10平整，以确保发热部10与导油体不分离。
请参阅图6所示，为本申请发热体100另一实施例的结构示意图，本实施例发热体100与图1所示发热体100的主要区别在于：发热部10为呈S形或连续S形弯曲的发热丝14，包括若干第一发热段11，若干第一发热段11沿纵向间隔设置，并基本沿横向延伸，且相邻两个第一发热段11的一端通过第二发热段12连接在一起，另一端相互隔开，发热部10的两个自由端分别连接于两个导电部20；即沿纵向最外侧的第一发热段11远离与第二发热段12连接的末端与导电部20连接，第一发热段11与导电部20圆滑过渡。
第一发热段11和第二发热段12的横截面积相同，配合若干第一发热段11沿纵向依次间隔分布，有利于热量在纵向方向的均匀分布，即第一发热段11和第二发热段12的宽度d1小于导电部20的最小宽度d2，以使发热体100通电发热时导电部20发热量少，使发热体100发热时所产生的热量集中在发热部10区域。
其中，第二发热段12为中部沿横向向外凸出的弧形状，以提高发热部10发热时的沿横向方向的热量均匀分布。
在本实施例中，第二发热段12上连接的固定部13可以沿纵向延伸，也可以是发热体100一侧的固定部13朝向左侧倾斜延伸，发热体100另一侧的固定部13朝向右侧倾斜延伸。
本实施例于导电部20与第一发热段11的连接处还延伸形成有一个固定部13，配合第二发热段12上的固定部13，可提高对发热部10的支撑强度和稳定性。
请参阅图7所示，为本申请发热体100又一实施例的结构示意图，本实施例发热体100中的发热部10包括若干矩形状的发热丝14，若干发热丝14沿横向间隔设置，并依次串联于两个导电部20之间；每一发热丝14包括两个沿纵向延伸并平行相对的第一发热段11，两个第一发热段11的两端分别通过第二发热段12对应连接；在本实施例中，第二发热段12为直线段，每个第二发热段12上连接有沿纵向延伸的固定部13。
第一发热段11和第二发热段12的横截面积相同，配合若干第一发热段11沿横向依次间隔分布，有利于热量在横向方向的均匀分布，即第一发热段11和第二发热段12的宽度d1小于导电部20的最小宽度d2，以使发热体100通电发热时导电部20发热量少，使发热体100发热时所产生的热量集中在发热部10区域。
需要说明的是，相邻两个发热丝14之间通过串联部15连接，且串联部15的两端分别连接于与相邻两个发热丝14中对应一侧第一发热段11的中部，即串联部15所在直线将若干发热丝14分隔成上下对称的两个部分，也就是说，每一发热丝14的上下两个部分是并联结构，若干发热丝14是串联结构。另外，第一发热段11和第二发热段12之间圆滑过渡，有利于热量均匀分布，避免了尖角部位热量堆叠集中而引起炸油发生。
请参阅图8所示，为本申请发热体100再一实施例的结构示意图，本实施例发热体100中发热部10包括若干菱形状的发热丝14，若干发热丝14沿横向依次串联于两个导电部20之间，发热丝14的横截面积小于导电部20的最小横截面积。
具体地，发热丝14包括两个相互平行的第一发热段11和两个相互平行的第二发热段12，两个第一发热段11和两个第二发热段12共同组成菱形状的发热丝14。第一发热段11和第二发热段12的横截面积相同，即第一发热段11和第二发热段12的宽度为d1，并小于导电部20的最小宽度d2，以使发热体100通电发热时导电部20发热量少，使发热体100发热时所产生的热量集中在发热部10区域。
若干发热丝14的短轴方向沿横向设置，长轴方向沿纵向设置，且本实施例中若干发热丝14直接串联连接，任意相邻两个发热丝14之间的连接点均位于发热体100沿纵向的中心线上，以使发热丝14发热时的沿纵向方向的上下两部分热量相同，有利于热量均匀分布。当然，在其他实施例中，若干发热丝14也可以间隔设置并依次串联连接。
在本实施例中，每一发热丝14的长轴方向两端分别连接有一个固定部13，固定部13沿纵向延伸，也就是说，每一个固定部13与所连接的第一发热段11和第二发热段12形成一个Y型结构，从而提高了对发热部10的支撑强度。
在上述实施例中，对各个实施例的描述都各有侧重，某个实施例中没有详述的部分，可以参见其它实施例的相关描述。
以上为对本申请所提供的技术方案的描述，对于本领域的技术人员，依据本申请实施例的思想，在具体实施方式及应用范围上均会有改变之处，综上，本说明书内容不应理解为对本申请的限制。

Claims (15)

  1. 一种发热体，其特征在于，所述发热体为金属片通过蚀刻形成的平板片状结构，包括发热部、沿所述发热部两端延伸形成的导电部、以及由所述导电部向远离所述发热部方向延伸形成的延伸部，所述导电部的横截面积由靠近所述发热部的一端向靠近所述延伸部的一端逐渐增大延伸，且所述导电部的最小横截面积大于所述延伸部的横截面积以及所述发热部中发热段的横截面积。
  2. 如权利要求1所述的发热体，其特征在于，所述延伸部的宽度大于0.15mm，且小于3mm。
  3. 如权利要求1所述的发热体，其特征在于，所述导电部靠近所述发热部的区域还开设有至少一个镂空孔。
  4. 如权利要求1所述的发热体，其特征在于，两个所述导电部位于所述发热体沿横向的两端，所述发热部为网格状、条纹状、S形、折线形、波浪形、锯齿形、螺旋形、圆形或矩形中任意一种。
  5. 如权利要求4所述的发热体，其特征在于，所述发热部在位于纵向的两侧分别连接有至少一个固定部。
  6. 如权利要求5所述的发热体，其特征在于，所述发热部为呈S形或连续S形弯曲的发热丝，包括若干第一发热段，所述若干第一发热段沿横向间隔设置，并沿纵向延伸，且相邻两个所述第一发热段的一端通过第二发热段连接在一起，另一端相互隔开，所述发热部的两个自由端分别连接于两个所述导电部；所述第一发热段和所述第二发热段的横截面积相同，并小于所述导电部的最小横截面积。
  7. 如权利要求5所述的发热体，其特征在于，所述发热部为呈S形或连续S形弯曲的发热丝，包括若干第一发热段，所述若干第一发热段沿纵向间隔设置，并沿横向延伸，且相邻两个所述第一发热段的一端通过第二发热段连接在一起，另一端相互隔开，所述发热部的两个自由端分别连接于两个所述导电部；所述第一发热段和所述第二发热段的横截面积相同，并小于所述导电部的最小横截面积。
  8. 如权利要求5所述的发热体，其特征在于，所述发热部包括若干矩形状的发热丝，若干所述发热丝沿横向间隔设置，并依次串联于两个所述导电部之间；每一所述发热丝包括两个沿纵向延伸并平行相对的第一发热段，两个所述第一发热段的两端分别通过第二发热段对应连接；所述第一发热段和所述第二发热段的横截面积相同，并小于所述导电部的最小横截面积。
  9. 如权利要求6至8任一项所述的发热体，其特征在于，每一所述第二发热段连接有一个所述固定部。
  10. 如权利要求9所述的发热体，其特征在于，所述固定部沿纵向延伸。
  11. 如权利要求9所述的发热体，其特征在于，其中一部分所述固定部沿靠近所述发热体的一端倾斜延伸，另一部分所述固定部沿靠近所述发热体的另一端倾斜延伸。
  12. 如权利要求9所述的发热体，其特征在于，所述第二发热段为中部向外凸出的弧形状。
  13. 如权利要求7所述的发热体，其特征在于，所述导电部与所述第一发热段的连接处还延伸形成有一个所述固定部。
  14. 如权利要求5所述的发热体，其特征在于，所述发热部包括若干菱形状的发热丝，若干所述发热丝沿横向依次串联于两个所述导电部之间；所述发热丝的横截面积小于所述导电部的最小横截面积。
  15. 如权利要求14所述的发热体，其特征在于，若干所述发热丝的短轴方向沿横向设置，长轴方向沿纵向设置，且每一所述发热丝的长轴方向两端分别连接一个所述固定部。
PCT/CN2023/071541 2022-01-10 2023-01-10 一种发热体 WO2023131338A1 (zh)

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