WO2020244682A1 - Heating element and atomization device - Google Patents

Heating element and atomization device Download PDF

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Publication number
WO2020244682A1
WO2020244682A1 PCT/CN2020/103387 CN2020103387W WO2020244682A1 WO 2020244682 A1 WO2020244682 A1 WO 2020244682A1 CN 2020103387 W CN2020103387 W CN 2020103387W WO 2020244682 A1 WO2020244682 A1 WO 2020244682A1
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Prior art keywords
layer
heating element
conductive
substrate
resistance
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PCT/CN2020/103387
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French (fr)
Chinese (zh)
Inventor
丁毅
黎进良
杜昊
陈湖
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深圳市卓力能电子有限公司
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Publication of WO2020244682A1 publication Critical patent/WO2020244682A1/en

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    • 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

Definitions

  • the invention belongs to the technical field of atomization equipment, and specifically relates to a heating element and an atomization device with the heating element.
  • the working principle of the most commonly used atomization device in the prior art is realized by means of electric heating.
  • the atomization device used in the field of electronic cigarettes heats the e-liquid for users to inhale.
  • the traditional heating element in order to be able to be used on an atomization device, generally adopts an electric heating alloy wire with a diameter of ⁇ 0.1mm- ⁇ 0.3mm to be wound into a spring structure.
  • the Chinese invention patent with publication number CN108887759A discloses an electronic cigarette heating element and a preparation method thereof.
  • the heating element has low strength and is easily deformed during transportation, installation and use, which affects the performance of the atomization device and causes poor product stability.
  • the materials used for heating in heating elements are generally electric heating alloys, which mainly include three series of alloys: Fe-Cr-Al alloy, Ni-Cr alloy and stainless steel. These three series of alloys have higher electrical resistance than other alloys.
  • a planar structure heating element appears.
  • the heating part of this heating element is a woven metal mesh and a chemically etched metal mesh, but there are both woven metal mesh and chemically etched metal mesh.
  • Temperature control using the TCR (temperature coefficient of resistance) curve of electric heating alloy materials is the most ideal temperature control method for heating element temperature control of atomization equipment.
  • the TCR value of Fe-Cr-Al alloy and Ni-Cr alloy is only 80-150ppm , It is difficult to read the value of resistance change with temperature.
  • the TCR value of stainless steel series is 800-1200ppm. Although the value of resistance change with temperature can be read, it requires high software algorithms, and the temperature control accuracy is often greater than 5 %, can not meet the demand for precise temperature control.
  • the heating element of the prior art cannot meet the requirements of the existing atomization equipment in terms of structure or performance.
  • the purpose of the present invention is to provide a heating element and an atomizing device with the heating element, which overcomes the structural and use performance of the heating element used in the above-mentioned prior art atomizing device that is not well adapted to fog The use requirements of chemical equipment.
  • a heating element includes a base body, the base body is provided with a through hole penetrating the base body, and the base body is also provided with a resistance layer avoiding the through hole, the resistance layer is insulated from the base body; Element, the conductive element is connected to the resistance layer.
  • the substrate is insulated from the resistive layer.
  • the electrical energy is introduced into the resistive layer through the conductive element, and the resistive layer converts the electrical energy into heat, thereby heating and atomizing the oil in contact with the substrate.
  • the resistive layer avoids The through hole is therefore beneficial to release the atomized aerosol or the non-atomized oil from the through hole, and facilitates the discharge of the aerosol from the air passage.
  • the heating element has the resistance layer on the substrate, the resistance of the heating element is not affected by the material characteristics of the substrate itself.
  • the thickness of the substrate can be appropriately increased, and the substrate can be made of a wider range of materials Compared with the conventional spring-shaped heating element, the heating element is not prone to deformation during assembly and use.
  • the substrate is an insulating substrate.
  • the substrate is made of insulating materials such as ceramic materials.
  • the substrate is a conductive substrate
  • the surface of the conductive substrate is provided with a dielectric layer that avoids the through holes
  • the dielectric layer is provided with the resistance layer and the conductive element.
  • the conductive substrate is made of conductive materials such as metal.
  • the conductive element is a conductive layer, the conductive layer is connected to the resistance layer, and at least a part of the conductive layer is a surface area of the heating element.
  • the conductive layer is arranged on the dielectric layer and is connected to the resistance layer.
  • the conductive layer is integrally sintered with the dielectric layer, the resistance layer, and the substrate, and the conductive layer serves as the gap between the positive and negative electrodes of the atomization device and the resistance layer.
  • the bridge is connected to conduct electricity and transfer electrical energy to the resistive layer.
  • the conductive layer is connected to the electrode of the atomization device, which reduces the contact resistance compared to the case where the thick film resistor is connected to the electrode.
  • the resistive layer at least partially covers the conductive layer or the conductive layer at least partially covers the resistive layer.
  • the resistance layer and the conductive layer are sintered to form a conductive lead.
  • the resistive layer is formed by sintering after printing a specific designed circuit using resistive paste.
  • the desired resistivity is obtained by adjusting the proportion of the slurry components, which solves the problem that the resistivity range of the traditional resistance alloy wire and strip is too narrow. Since the resistance layer formed by the resistance paste has a higher temperature coefficient of resistance than stainless steel, the TCR curve can be used for temperature control, which is beneficial to obtain higher accuracy.
  • the resistance layer is an alloy material, including at least one of Ag-Pd alloy, Ag, Au, SnO, RuO2, MoO3, W, C, Mo-Mn alloy, Ni-Cr alloy, Fe-Cr-Al alloy.
  • the thickness of the resistance layer is 1-200 ⁇ m, and the resistance value is 0.1 ⁇ -10 ⁇ .
  • the thickness of the dielectric layer is 5 ⁇ m-500 ⁇ m.
  • the through hole is located in the middle of the resistance layer and/or at the boundary of the resistance layer, and the aerosol formed by the oil on the substrate escapes from the through hole into the airway, which is beneficial to the rapid discharge of the aerosol .
  • the composition of the conductive layer includes at least one of Ag, Au, Cu, and Ni.
  • the outer sides of the resistance layer and the conductive layer are at least partially covered with a protective layer, the protective layer avoids the through holes, and the protective layer prevents oil from penetrating into the resistance layer and the conductive layer.
  • the material of the dielectric layer includes at least one of glass-ceramic, amorphous glass, crystalline glass or ceramic glass composite material. More preferably, the expansion coefficient of the material of the medium layer is close to the expansion coefficient of the substrate or the expansion coefficients of the two match, so as to ensure that no cracking occurs during thermal expansion and contraction.
  • the resistance layer is arranged in a manner of half surrounding the through holes.
  • An atomization device includes the heating element described above, and further includes an oil guide element.
  • One side of the base body is provided with a resistance layer, and the other side is connected with the oil guide element.
  • the through hole penetrates the one side of the base body and all of the base body. State the other side.
  • the oil guiding element absorbs oil, and the oil is brought into contact with the substrate by means of the oil guiding element.
  • the atomization device further includes an electrode, the electrode is arranged below the base, and the thimble of the electrode is connected to the conductive element.
  • Figure 1 For example 1 Schematic diagram of the heating element structure in the provided heating element
  • Figure 2 For example 2 Schematic diagram of the sectional structure of the atomization equipment provided.
  • the heating element 1 shows a heating element 1, the heating element 1 includes a base 10, this embodiment is preferably a sheet-like base, the base 10 is also provided with a resistance layer 30 that avoids the through hole 11,
  • the resistive layer 30 is insulated from the substrate 10; it also includes a conductive element connected to the resistive layer 30.
  • the conductive element is two elements connected to two ends of the resistive layer 30, respectively.
  • the substrate 10 is a conductive substrate, the surface of the conductive substrate is provided with a dielectric layer 20 that avoids the through holes 11, the dielectric layer 20 is provided with the resistive layer 30 and the conductive element, the dielectric layer 20 Insulate the resistive layer 30 and the conductive element from the conductive substrate.
  • the dielectric layer 20 can be completely covered on the conductive substrate avoiding the through holes 11, or it can be covered where the resistive layer 30 and the conductive element are provided, as long as the resistive layer 30,
  • the conductive element may be insulated from the conductive substrate, and the conductive substrate is preferably a stainless steel metal sheet.
  • the base 10 may also be an insulating base, and the insulating base is provided with a resistance layer 30 and a conductive element 31, and there is no need to provide an insulating dielectric layer on the insulating base.
  • the conductive element is the conductive layer 31, the conductive layer 31 is connected to the resistance layer 30, and the conductive layer 31 is two separate conductive layers connected to both ends of the resistance layer 30, for example, the conductive layer 31 and the resistance layer 30
  • the two ends are sintered together to form two conductive leads; and at least part of the conductive layer 31 is provided on the surface area of the heating element 1.
  • each section of the conductive layer 31 may be entirely provided on the surface of the substrate 10 according to actual conditions. It is also possible that one part is arranged on the surface of the base 10 and the other part protrudes out of the base 10.
  • the base 10 is a stainless steel metal sheet with a thickness of 0.25 mm.
  • the dielectric layer 20 is a glass-ceramic layer, which is printed on the substrate 10 by screen printing technology, and is integrated with the substrate 10 after drying and sintering.
  • the thickness of the dielectric layer 20 after sintering is 30 ⁇ m.
  • the conductive layer 31, the dielectric layer 20, the resistance layer 30, and the base 10 are integrally sintered and molded.
  • the conductive layer 31 is connected to the electrode 40.
  • the conductive layer 31 can be made of common metal or alloy paste.
  • the conductive layer 31 is a silver film, which reduces the contact resistance compared to the case where the thick film resistor is directly connected to the electrode.
  • the resistive layer 30 is formed on the dielectric layer 20 by sintering after printing a specific designed circuit using resistive paste.
  • the desired resistivity is obtained by adjusting the proportion of the slurry components, which solves the problem that the resistivity range of the traditional resistance alloy wire and strip is too narrow. Since the resistance layer 30 formed by the resistance paste has a higher temperature coefficient of resistance than stainless steel, the TCR curve can be used for temperature control, which is beneficial to obtain higher accuracy.
  • the raw material of the resistance paste includes Ag-Pd, which is printed according to the designed circuit shape shown in FIG. 2, and is dried and sintered after printing to be integrated with the dielectric layer 20.
  • the thickness of the resistance layer 30 is 25 ⁇ m, the resistance value is 1.2 ⁇ , the tested resistivity is 2.6 ⁇ ⁇ m, and the temperature coefficient of resistance is 2200 ppm. Both the resistivity and the temperature coefficient of resistance of the resistive layer 30 are improved compared with the traditional electric heating alloy.
  • the through hole 11 is located at the middle of the resistance layer 30 and the boundary of the resistance layer 30, and the aerosol formed by heating and atomizing the oil on the substrate 10 escapes from the through hole 11.
  • the aerosol formed by heating and atomizing the oil on the substrate 10 escapes from the through hole 11.
  • the surface of the substrate 10 with the resistance layer is the heating surface .
  • the resistance layer 30 and the conductive element that is, the outer side of the conductive layer 31 is also covered with a protective layer to prevent oil from penetrating into the resistance layer 30 and the conductive layer 31 .
  • the substrate is insulated from the resistive layer.
  • the electrical energy is introduced into the resistive layer through the conductive element, and the resistive layer converts the electrical energy into heat, thereby heating and atomizing the oil in contact with the substrate.
  • the resistive layer avoids The through hole is therefore beneficial to release the atomized aerosol or the non-atomized oil from the through hole, and facilitates the discharge of the aerosol from the air passage.
  • the heating element has the resistance layer on the substrate, the resistance of the heating element is not affected by the material characteristics of the substrate itself.
  • the thickness of the substrate can be appropriately increased, and the substrate can be made of a wider range of materials Compared with the conventional spring-shaped heating element, the heating element is not prone to deformation during assembly and use.
  • Example 2
  • An atomization device includes the heating element 1 of the embodiment 1, and further includes an oil guiding element 2, an air passage 3, and an oil bin 4, and the oil is fed into the oil guiding element 2 from the oil bin 4.
  • One side of the base 10 is in contact with the oil guiding element 2. As shown in FIG.
  • the oil guiding element 2 adsorbs the oil in the oil tank 4 on the surface of the base 10;
  • the other side of the base 10 is attached with a resistance layer 30 for heating, the through hole penetrates the one side of the base 10 and the other side of the base 10, that is, the oil guiding surface of the base 10 is in contact with the oil guiding element 2,
  • the surface of the base 10 with the resistance layer 30 is the heating surface of the base 10, and the through hole penetrates the oil conducting surface and the heating surface of the base 10.
  • the atomization device also includes an electrode 40, the electrode 40 is arranged under the substrate 10, the thimble of the electrode 40 is in direct contact with the conductive layer 31, that is, the positive and negative electrodes are in direct contact with the conductive layer 31, so as to ensure that the thimble of the electrode 40 is electrically conductive.
  • Layer 31 is connected. Therefore, it is possible to easily connect the heating element 1 to the electrode 40 and make the circuit conductive.
  • the conductive layer 31 serves as a connection bridge between the positive and negative electrodes of the atomization device and the resistance layer 30, plays a conductive role, and transmits electric energy to the resistance layer 30.
  • the resistance layer 30 on the heating surface of the substrate 10 When the resistance layer 30 on the heating surface of the substrate 10 is connected to the electrode to generate heat, the oil stored in the oil guiding element on the oil guiding surface of the substrate 10 is heated and atomized to form an aerosol that enters the air passage 3 through the through hole 11; At the same time, the oil flowing from the through hole 11 to the heating surface of the substrate 10 is also heated and atomized by the resistance layer 30, and the generated aerosol directly enters the air passage 3, so that the atomizing device can discharge the generated aerosol through the air passage 3 .
  • the heating element 1 After assembling the heating element 1 into the atomizing device, the heating element is energized, and the heating element of the spiral structure made of the traditional electric heating alloy is separately tested under the electric power of 6-12W.
  • the heating element 1 of Example 1 The smoking speed is increased by more than 30%. Using TCR curve for temperature control, the temperature control accuracy can be controlled within 2.5% error range. In addition, through multiple long-term tests, it is found that the stability of the aerosol generated by the atomization device of Example 1 is significantly improved.

Abstract

A heating element (1) and an atomization device. The heating element (1) comprises a base body (10), the base body (10) being provided with a through hole (11) penetrating through the base body (10), the base body (10) being further provided with a resistive layer (30) avoiding the through hole (11), and the resistive layer (30) being insulated from the base body (10); and the heating element (1) further comprises a conductive element (31), the conductive element (31) being connected to the resistive layer (30). In the heating element (1), the resistive layer (30) is provided on the base body (10), and thus the resistance of the heating element (1) is not influenced by the material characteristics of the base body (10) itself; compared with a conventional spring-like heating element, the heating element (1) is less likely to deform during assembly and use.

Description

一种加热元件及雾化设备Heating element and atomization equipment 技术领域Technical field
本发明创造属于雾化设备技术领域，具体涉及一种加热元件及具有该加热元件的雾化设备。 The invention belongs to the technical field of atomization equipment, and specifically relates to a heating element and an atomization device with the heating element.
背景技术Background technique
现有技术中最普遍使用的雾化设备的工作原理是通过通电加热的方式来实现的。例如，在电子烟领域中使用的雾化设备为对烟油进行加热以供使用者吸食。现有技术中，为了能够在雾化设备上使用，传统的发热元件一般采用直径Φ0.1mm-Φ0.3mm的电热合金线绕制成弹簧结构。例如，公开号为CN108887759A的中国发明专利公开了一种电子烟发热体及其制备方法。但是，由于此类发热元件的线径较小发热元件强度低，在运输、安装及使用过程中容易变形，影响雾化设备的使用性能，造成产品稳定性差。The working principle of the most commonly used atomization device in the prior art is realized by means of electric heating. For example, the atomization device used in the field of electronic cigarettes heats the e-liquid for users to inhale. In the prior art, in order to be able to be used on an atomization device, the traditional heating element generally adopts an electric heating alloy wire with a diameter of Φ0.1mm-Φ0.3mm to be wound into a spring structure. For example, the Chinese invention patent with publication number CN108887759A discloses an electronic cigarette heating element and a preparation method thereof. However, due to the small wire diameter of this type of heating element, the heating element has low strength and is easily deformed during transportation, installation and use, which affects the performance of the atomization device and causes poor product stability.
同时，对于加热雾化的设备而言，加热元件的性能和工作稳定性极大地影响雾化设备的工作性能，而目前，人们对雾化设备的电热材料提出了更高的要求。例如，加热元件中用于发热的材料一般为电热合金，其主要有Fe-Cr-Al合金、Ni-Cr合金以及不锈钢三大系列合金，这三大系列合金相对于其他合金拥有较高的电阻率，然而仍难以满足于雾化设备的加热元件对更高电阻率、更宽的电阻率范围选择的需求。随着雾化设备技术的进一步发展，出现了平面结构加热元件，这种加热元件发热部位为编织的金属网和化学蚀刻金属网两种，但是无论是编制金属网还是化学蚀刻的金属网都存在着面积过大及电阻阻值低的难题。利用电热合金材料的TCR（电阻温度系数）曲线进行温控是雾化设备的加热元件温控最理想的温控方式，然而Fe-Cr-Al合金、Ni-Cr合金TCR值都只有80-150ppm，难以读取到电阻随温度的变化值，不锈钢系列TCR值在800-1200ppm，虽然可以读取到电阻随温度的变化值，但是对软件算法要求高，且温控精度跟实际偏差往往大于5%，满足不了精准温控的需求。At the same time, for heating and atomizing equipment, the performance and working stability of the heating element greatly affect the working performance of the atomizing equipment. At present, people put forward higher requirements for the electric heating materials of the atomizing equipment. For example, the materials used for heating in heating elements are generally electric heating alloys, which mainly include three series of alloys: Fe-Cr-Al alloy, Ni-Cr alloy and stainless steel. These three series of alloys have higher electrical resistance than other alloys. However, it is still difficult to meet the needs of the heating element of the atomization device for higher resistivity and wider resistivity range selection. With the further development of atomization equipment technology, a planar structure heating element appears. The heating part of this heating element is a woven metal mesh and a chemically etched metal mesh, but there are both woven metal mesh and chemically etched metal mesh. The problem of too large area and low resistance value. Temperature control using the TCR (temperature coefficient of resistance) curve of electric heating alloy materials is the most ideal temperature control method for heating element temperature control of atomization equipment. However, the TCR value of Fe-Cr-Al alloy and Ni-Cr alloy is only 80-150ppm , It is difficult to read the value of resistance change with temperature. The TCR value of stainless steel series is 800-1200ppm. Although the value of resistance change with temperature can be read, it requires high software algorithms, and the temperature control accuracy is often greater than 5 %, can not meet the demand for precise temperature control.
    因此，现有技术的加热元件无论是在结构上、还是在使用性能上，都不能很好地满足现有雾化设备对其的使用要求。Therefore, the heating element of the prior art cannot meet the requirements of the existing atomization equipment in terms of structure or performance.
技术问题technical problem
本发明创造的目的是，提供一种加热元件及具有该加热元件的雾化设备，克服上述的现有技术的雾化设备中使用的加热元件在结构上以及使用性能上不能很好地适应雾化设备的使用要求的问题。The purpose of the present invention is to provide a heating element and an atomizing device with the heating element, which overcomes the structural and use performance of the heating element used in the above-mentioned prior art atomizing device that is not well adapted to fog The use requirements of chemical equipment.
技术解决方案Technical solutions
一种加热元件，包括基体，所述基体上设有贯通所述基体的通孔，所述基体上还设有避开所述通孔的电阻层，所述电阻层与基体绝缘；还包括导电元件，所述导电元件与电阻层连接。A heating element includes a base body, the base body is provided with a through hole penetrating the base body, and the base body is also provided with a resistance layer avoiding the through hole, the resistance layer is insulated from the base body; Element, the conductive element is connected to the resistance layer.
基体与电阻层之间绝缘，在通电时，通过导电元件将电能导入电阻层，电阻层将电能转化为热能，从而对与基体接触的油液进行加热、雾化，由于所述电阻层避开所述通孔，因而有利于将雾化后的气雾或者未经雾化的油液从通孔释放，有利于将气雾从气道排出。由于所述加热元件将电阻层设置于基体上，因而加热元件的电阻不受基体本身的材料特性的影响，为了进一步保证加热元件的强度，可以适当增加基体的厚度，基体可选用的材质更广，与以往的弹簧状的加热元件相比，加热元件在装配及使用过程中不容易发生变形。The substrate is insulated from the resistive layer. When energized, the electrical energy is introduced into the resistive layer through the conductive element, and the resistive layer converts the electrical energy into heat, thereby heating and atomizing the oil in contact with the substrate. The resistive layer avoids The through hole is therefore beneficial to release the atomized aerosol or the non-atomized oil from the through hole, and facilitates the discharge of the aerosol from the air passage. Since the heating element has the resistance layer on the substrate, the resistance of the heating element is not affected by the material characteristics of the substrate itself. In order to further ensure the strength of the heating element, the thickness of the substrate can be appropriately increased, and the substrate can be made of a wider range of materials Compared with the conventional spring-shaped heating element, the heating element is not prone to deformation during assembly and use.
作为一种实施方式，所述基体为绝缘基体。例如，所述基体选用陶瓷材料等绝缘材料。As an embodiment, the substrate is an insulating substrate. For example, the substrate is made of insulating materials such as ceramic materials.
作为另外一种实施方式，所述基体为导电基体，所述导电基体的表面设有避开所述通孔的介质层，所述介质层上设有所述电阻层和所述导电元件。所述导电基体选用金属等导电材料。As another embodiment, the substrate is a conductive substrate, the surface of the conductive substrate is provided with a dielectric layer that avoids the through holes, and the dielectric layer is provided with the resistance layer and the conductive element. The conductive substrate is made of conductive materials such as metal.
优选地，所述导电元件为导电层，所述导电层与电阻层连接，且所述导电层至少部分区域为加热元件的表面区域。所述导电层设置于介质层上并与电阻层交接，例如，所述导电层与介质层、电阻层及基体一体烧结成型，导电层作为雾化设备的正、负电极与电阻层之间的连接桥梁，起导电作用，把电能传递到电阻层。通过导电层与雾化设备的电极连接，相对于厚膜电阻与电极连接的情况，减少接触电阻。Preferably, the conductive element is a conductive layer, the conductive layer is connected to the resistance layer, and at least a part of the conductive layer is a surface area of the heating element. The conductive layer is arranged on the dielectric layer and is connected to the resistance layer. For example, the conductive layer is integrally sintered with the dielectric layer, the resistance layer, and the substrate, and the conductive layer serves as the gap between the positive and negative electrodes of the atomization device and the resistance layer. The bridge is connected to conduct electricity and transfer electrical energy to the resistive layer. The conductive layer is connected to the electrode of the atomization device, which reduces the contact resistance compared to the case where the thick film resistor is connected to the electrode.
优选地，电阻层至少部分覆盖在导电层上或导电层至少部分覆盖在电阻层上。例如，电阻层与导电层烧结形成导电引线。Preferably, the resistive layer at least partially covers the conductive layer or the conductive layer at least partially covers the resistive layer. For example, the resistance layer and the conductive layer are sintered to form a conductive lead.
优选地，所述电阻层采用电阻浆料按特定设计的线路经印刷后烧结成型。通过调节浆料成分的比例获得所期望的电阻率，解决了传统电阻合金线材、板带的电阻率可选范围区间过窄的问题。由于电阻浆料所形成的电阻层具有比不锈钢更高的电阻温度系数，因而可采用TCR曲线进行温控，有利于获得更高的精度。Preferably, the resistive layer is formed by sintering after printing a specific designed circuit using resistive paste. The desired resistivity is obtained by adjusting the proportion of the slurry components, which solves the problem that the resistivity range of the traditional resistance alloy wire and strip is too narrow. Since the resistance layer formed by the resistance paste has a higher temperature coefficient of resistance than stainless steel, the TCR curve can be used for temperature control, which is beneficial to obtain higher accuracy.
优选地，电阻层为合金材料，包括Ag-Pd合金、Ag、Au、SnO、RuO2、MoO3、W、C、Mo-Mn合金、Ni-Cr合金、Fe-Cr-Al合金的至少一种。Preferably, the resistance layer is an alloy material, including at least one of Ag-Pd alloy, Ag, Au, SnO, RuO2, MoO3, W, C, Mo-Mn alloy, Ni-Cr alloy, Fe-Cr-Al alloy.
优选地，所述电阻层的厚度为1-200μm，阻值为0.1Ω-10Ω。Preferably, the thickness of the resistance layer is 1-200 μm, and the resistance value is 0.1Ω-10Ω.
优选地，所述介质层的厚度为5μm-500μm。Preferably, the thickness of the dielectric layer is 5 μm-500 μm.
优选地，所述通孔位于电阻层的中部和/或所述电阻层的边界处，将基体上的油液形成的气雾从所述通孔逸出至气道内，有利于气雾快速排出。Preferably, the through hole is located in the middle of the resistance layer and/or at the boundary of the resistance layer, and the aerosol formed by the oil on the substrate escapes from the through hole into the airway, which is beneficial to the rapid discharge of the aerosol .
优选地，所述导电层的组分包括Ag、Au、Cu、Ni中的至少一种。Preferably, the composition of the conductive layer includes at least one of Ag, Au, Cu, and Ni.
更优选地，所述电阻层和导电层的外侧至少部分地覆盖有保护层，所述保护层避开所述通孔，保护层避免油液渗入到电阻层、导电层中。More preferably, the outer sides of the resistance layer and the conductive layer are at least partially covered with a protective layer, the protective layer avoids the through holes, and the protective layer prevents oil from penetrating into the resistance layer and the conductive layer.
优选地，所述介质层的材料包括微晶玻璃、非晶玻璃、晶态玻璃或者陶瓷玻璃复合材料的至少一种。更加优选地，介质层的材料的膨胀系数接近基体的膨胀系数或者两者的膨胀系数相匹配，保证在热胀冷缩过程不发生开裂。Preferably, the material of the dielectric layer includes at least one of glass-ceramic, amorphous glass, crystalline glass or ceramic glass composite material. More preferably, the expansion coefficient of the material of the medium layer is close to the expansion coefficient of the substrate or the expansion coefficients of the two match, so as to ensure that no cracking occurs during thermal expansion and contraction.
优选地，所述通孔为两个以上，所述电阻层以半包围所述通孔的方式布置。Preferably, there are more than two through holes, and the resistance layer is arranged in a manner of half surrounding the through holes.
一种雾化设备，包括上述的加热元件，还包括导油元件，所述基体的一面设有电阻层，另一面与导油元件连接，所述通孔贯通基体的所述一面和基体的所述另一面。在使用时，所述导油元件将油液吸附，借助导油元件将油液与基体接触。An atomization device includes the heating element described above, and further includes an oil guide element. One side of the base body is provided with a resistance layer, and the other side is connected with the oil guide element. The through hole penetrates the one side of the base body and all of the base body. State the other side. When in use, the oil guiding element absorbs oil, and the oil is brought into contact with the substrate by means of the oil guiding element.
更优选地，雾化设备还包括电极，所述电极设置于基体的下方，所述电极的顶针与所述导电元件连接。More preferably, the atomization device further includes an electrode, the electrode is arranged below the base, and the thimble of the electrode is connected to the conductive element.
  附图说明 Description of the drawings
图Figure 11 为实施例For example 11 提供的加热元件中加热元件结构示意图；Schematic diagram of the heating element structure in the provided heating element;
图Figure 22 为实施例For example 22 提供的雾化设备剖面结构示意图。Schematic diagram of the sectional structure of the atomization equipment provided.
  本发明的实施方式 Embodiments of the invention
下面结合附图及具体实施例详细说明本发明创造的技术方案。The technical solution created by the present invention will be described in detail below with reference to the drawings and specific embodiments.
实施例1Example 1
参照图1所示，一种加热元件1，所述加热元件1包括基体10，本实施例优选为片状基体，所述基体10上还设有避开所述通孔11的电阻层30，所述电阻层30与基体10绝缘；还包括导电元件，所述导电元件与电阻层30连接，具体地，导电元件为两个元件，分别接在电阻层30的两端。1 shows a heating element 1, the heating element 1 includes a base 10, this embodiment is preferably a sheet-like base, the base 10 is also provided with a resistance layer 30 that avoids the through hole 11, The resistive layer 30 is insulated from the substrate 10; it also includes a conductive element connected to the resistive layer 30. Specifically, the conductive element is two elements connected to two ends of the resistive layer 30, respectively.
所述基体10为导电基体，所述导电基体的表面设有避开所述通孔11的介质层20，所述介质层20上设有所述电阻层30和所述导电元件，介质层20将电阻层30、导电元件与导电基体绝缘，介质层20可以是避开通孔11全部覆盖在导电基体上，也可以是覆盖在设置有电阻层30和导电元件之处，只要电阻层30、导电元件与导电基体绝缘即可，所述导电基体优选地采用不锈钢金属片。The substrate 10 is a conductive substrate, the surface of the conductive substrate is provided with a dielectric layer 20 that avoids the through holes 11, the dielectric layer 20 is provided with the resistive layer 30 and the conductive element, the dielectric layer 20 Insulate the resistive layer 30 and the conductive element from the conductive substrate. The dielectric layer 20 can be completely covered on the conductive substrate avoiding the through holes 11, or it can be covered where the resistive layer 30 and the conductive element are provided, as long as the resistive layer 30, The conductive element may be insulated from the conductive substrate, and the conductive substrate is preferably a stainless steel metal sheet.
在另一具体试试方式中，所述基体10还可以是绝缘基体，绝缘基体上设置有电阻层30和导电元件31，绝缘基体上无需设置绝缘的介质层。In another specific test method, the base 10 may also be an insulating base, and the insulating base is provided with a resistance layer 30 and a conductive element 31, and there is no need to provide an insulating dielectric layer on the insulating base.
所述导电元件为导电层31，导电层31与电阻层30连接，导电层31为分开设置的两段导电层，分别接在电阻层30的两端，例如，导电层31与电阻层30的两端烧结在一起形成两条导电引线；而且所述导电层31至少部分区域设置于加热元件1的表面区域，具体地，根据实际情况每一段导电层31可以是全部设置在基体10的表面，也可以是一部分设置在基体10的表面，另一部分伸出基体10之外。The conductive element is the conductive layer 31, the conductive layer 31 is connected to the resistance layer 30, and the conductive layer 31 is two separate conductive layers connected to both ends of the resistance layer 30, for example, the conductive layer 31 and the resistance layer 30 The two ends are sintered together to form two conductive leads; and at least part of the conductive layer 31 is provided on the surface area of the heating element 1. Specifically, each section of the conductive layer 31 may be entirely provided on the surface of the substrate 10 according to actual conditions. It is also possible that one part is arranged on the surface of the base 10 and the other part protrudes out of the base 10.
所述基体10为不锈钢金属片，片材厚度0.25mm。所述介质层20为微晶玻璃层，采用丝网印刷技术印刷在基体10上，经干燥、烧结后与基体10形成一体，烧结后介质层20的厚度为30μm。在实施例1中，所述导电层31与介质层20、电阻层30及基体10一体烧结成型。通过导电层31与电极40连接，导电层31可由普通金属或合金浆料制成，如导电层31为银薄膜，相对于厚膜电阻直接与电极连接的情况，减少接触电阻。The base 10 is a stainless steel metal sheet with a thickness of 0.25 mm. The dielectric layer 20 is a glass-ceramic layer, which is printed on the substrate 10 by screen printing technology, and is integrated with the substrate 10 after drying and sintering. The thickness of the dielectric layer 20 after sintering is 30 μm. In Embodiment 1, the conductive layer 31, the dielectric layer 20, the resistance layer 30, and the base 10 are integrally sintered and molded. The conductive layer 31 is connected to the electrode 40. The conductive layer 31 can be made of common metal or alloy paste. For example, the conductive layer 31 is a silver film, which reduces the contact resistance compared to the case where the thick film resistor is directly connected to the electrode.
所述电阻层30采用电阻浆料按特定设计的线路经印刷后烧结成型于介质层20上。通过调节浆料成分的比例获得所期望的电阻率，解决了传统电阻合金线材、板带的电阻率可选范围区间过窄的问题。由于电阻浆料所形成的电阻层30具有比不锈钢更高的电阻温度系数，因而可采用TCR曲线进行温控，有利于获得更高的精度。所述电阻浆料的原料包括Ag-Pd，按图2所示的设计的线路形状印刷，印刷后经干燥、烧结与介质层20与形成一体。烧结后电阻层30厚度25μm，阻值1.2Ω，经测试电阻率为2.6μΩm，电阻温度系数为2200ppm。所述电阻层30无论是电阻率还是电阻温度系数均比传统电热合金得到提升。The resistive layer 30 is formed on the dielectric layer 20 by sintering after printing a specific designed circuit using resistive paste. The desired resistivity is obtained by adjusting the proportion of the slurry components, which solves the problem that the resistivity range of the traditional resistance alloy wire and strip is too narrow. Since the resistance layer 30 formed by the resistance paste has a higher temperature coefficient of resistance than stainless steel, the TCR curve can be used for temperature control, which is beneficial to obtain higher accuracy. The raw material of the resistance paste includes Ag-Pd, which is printed according to the designed circuit shape shown in FIG. 2, and is dried and sintered after printing to be integrated with the dielectric layer 20. After sintering, the thickness of the resistance layer 30 is 25 μm, the resistance value is 1.2 Ω, the tested resistivity is 2.6 μ Ωm, and the temperature coefficient of resistance is 2200 ppm. Both the resistivity and the temperature coefficient of resistance of the resistive layer 30 are improved compared with the traditional electric heating alloy.
参照图1所示，所述通孔11位于电阻层30的中部和所述电阻层30的边界处，将基体10上的油液被加热雾化后形成的气雾从所述通孔11逸出至气道内，有利于气雾快速排出，而且还可以通过通孔11将部分油液从基体10的导油面导到基体10的发热面，基体10设置有电阻层的一面即为发热面。所述位于所述电阻层中部的通孔为两个，所述电阻层以半包围位于所述电阻层中部的通孔的方式布置，参照图1所示的S形布置。1, the through hole 11 is located at the middle of the resistance layer 30 and the boundary of the resistance layer 30, and the aerosol formed by heating and atomizing the oil on the substrate 10 escapes from the through hole 11. Out into the airway, it is conducive to the rapid discharge of the gas mist, and part of the oil can be led from the oil guiding surface of the substrate 10 to the heating surface of the substrate 10 through the through hole 11. The surface of the substrate 10 with the resistance layer is the heating surface . There are two through holes in the middle of the resistance layer, and the resistance layer is arranged in a manner of half surrounding the through holes in the middle of the resistance layer. Refer to the S-shaped arrangement shown in FIG. 1.
更优选地，在实施例1的附图中未明确示意，所述电阻层30和导电元件，即导电层31的外侧还覆盖有保护层，避免油液渗入到电阻层30、导电层31中。More preferably, it is not clearly shown in the drawings of Embodiment 1, that the resistance layer 30 and the conductive element, that is, the outer side of the conductive layer 31 is also covered with a protective layer to prevent oil from penetrating into the resistance layer 30 and the conductive layer 31 .
基体与电阻层之间绝缘，在通电时，通过导电元件将电能导入电阻层，电阻层将电能转化为热能，从而对与基体接触的油液进行加热、雾化，由于所述电阻层避开所述通孔，因而有利于将雾化后的气雾或者未经雾化的油液从通孔释放，有利于将气雾从气道排出。由于所述加热元件将电阻层设置于基体上，因而加热元件的电阻不受基体本身的材料特性的影响，为了进一步保证加热元件的强度，可以适当增加基体的厚度，基体可选用的材质更广，与以往的弹簧状的加热元件相比，加热元件在装配及使用过程中不容易发生变形。实施例2The substrate is insulated from the resistive layer. When energized, the electrical energy is introduced into the resistive layer through the conductive element, and the resistive layer converts the electrical energy into heat, thereby heating and atomizing the oil in contact with the substrate. The resistive layer avoids The through hole is therefore beneficial to release the atomized aerosol or the non-atomized oil from the through hole, and facilitates the discharge of the aerosol from the air passage. Since the heating element has the resistance layer on the substrate, the resistance of the heating element is not affected by the material characteristics of the substrate itself. In order to further ensure the strength of the heating element, the thickness of the substrate can be appropriately increased, and the substrate can be made of a wider range of materials Compared with the conventional spring-shaped heating element, the heating element is not prone to deformation during assembly and use. Example 2
一种雾化设备，包括实施例1的加热元件1，还包括导油元件2、气道3和油仓4，油液从所述油仓4送入所述导油元件2。所述基体10的一面与导油元件2接触，参照附图2所示，所述导油元件2将油仓4中油液吸附于基体10的表面；借助导油元件2将油液与基体10接触，基体10的另一面附有用于加热的电阻层30，所述通孔贯通基体10的所述一面和基体10的所述另一面，即基体10的导油面与导油元件2接触，基体10设置有电阻层30的一面为基体10发热面，通孔贯通基体10的导油面和发热面。An atomization device includes the heating element 1 of the embodiment 1, and further includes an oil guiding element 2, an air passage 3, and an oil bin 4, and the oil is fed into the oil guiding element 2 from the oil bin 4. One side of the base 10 is in contact with the oil guiding element 2. As shown in FIG. 2, the oil guiding element 2 adsorbs the oil in the oil tank 4 on the surface of the base 10; Contact, the other side of the base 10 is attached with a resistance layer 30 for heating, the through hole penetrates the one side of the base 10 and the other side of the base 10, that is, the oil guiding surface of the base 10 is in contact with the oil guiding element 2, The surface of the base 10 with the resistance layer 30 is the heating surface of the base 10, and the through hole penetrates the oil conducting surface and the heating surface of the base 10.
雾化设备还包括电极40，所述电极40设置于基体10的下方，电极40的顶针与导电层31直接接触，即正、负电极与导电层31直接接触，从而保证电极40的顶针与导电层31连接。由此可以轻易实现将加热元件1与电极40连接并使电路导通。导电层31作为雾化设备正、负电极与电阻层30之间的连接桥梁，起导电作用，把电能传递到电阻层30。当基体10发热面上的电阻层30与电极接通上电发热时，基体10的导油面上导油元件储存的油液被加热雾化，形成气雾通过通孔11进入气道3；同时，从通孔11流到基体10发热面上的油液也被电阻层30加热雾化，产生的气雾直接进入气道3，从而雾化设备可通过气道3将产生的气雾排出。The atomization device also includes an electrode 40, the electrode 40 is arranged under the substrate 10, the thimble of the electrode 40 is in direct contact with the conductive layer 31, that is, the positive and negative electrodes are in direct contact with the conductive layer 31, so as to ensure that the thimble of the electrode 40 is electrically conductive. Layer 31 is connected. Therefore, it is possible to easily connect the heating element 1 to the electrode 40 and make the circuit conductive. The conductive layer 31 serves as a connection bridge between the positive and negative electrodes of the atomization device and the resistance layer 30, plays a conductive role, and transmits electric energy to the resistance layer 30. When the resistance layer 30 on the heating surface of the substrate 10 is connected to the electrode to generate heat, the oil stored in the oil guiding element on the oil guiding surface of the substrate 10 is heated and atomized to form an aerosol that enters the air passage 3 through the through hole 11; At the same time, the oil flowing from the through hole 11 to the heating surface of the substrate 10 is also heated and atomized by the resistance layer 30, and the generated aerosol directly enters the air passage 3, so that the atomizing device can discharge the generated aerosol through the air passage 3 .
将加热元件1装配到雾化设备内完成装配后通电，在通电功率为6-12W下分别将传统的电热合金绕制成的螺旋结构的加热体进行对比测试，实施例1的加热元件1的起烟速度提高30% 以上。采用TCR曲线进行温控，温度控制精度可控制到2.5%误差范围以内。并且通过多次长期测试发现，实施例1的雾化设备的产生的气雾的稳定性明显提高。 After assembling the heating element 1 into the atomizing device, the heating element is energized, and the heating element of the spiral structure made of the traditional electric heating alloy is separately tested under the electric power of 6-12W. The heating element 1 of Example 1 The smoking speed is increased by more than 30%. Using TCR curve for temperature control, the temperature control accuracy can be controlled within 2.5% error range. In addition, through multiple long-term tests, it is found that the stability of the aerosol generated by the atomization device of Example 1 is significantly improved.
根据上述说明书的揭示和教导，本发明创造所属领域的技术人员还可以对上述实施方式进行变更和修改。因此，本发明创造并不局限于上面揭示和描述的具体实施方式，对本发明创造的一些修改和变更也应当落入本发明创造的权利要求的保护范围内。此外，尽管本说明书中使用了一些特定的术语，但这些术语只是为了方便说明，并不对本发明创造构成任何限制。Based on the disclosure and teaching of the above specification, those skilled in the art to which the present invention belongs can also change and modify the above embodiments. Therefore, the invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the invention should also fall within the protection scope of the claims of the invention. In addition, although some specific terms are used in this specification, these terms are only for convenience of description and do not constitute any limitation to the invention.

Claims (10)

  1. 一种加热元件，其特征在于，包括基体，所述基体上设有贯通所述基体的通孔，所述基体上还设有避开所述通孔的电阻层，所述电阻层与基体绝缘；还包括导电元件，所述导电元件与电阻层连接。A heating element, characterized in that it comprises a base body with a through hole penetrating the base body, the base body is also provided with a resistance layer that avoids the through hole, the resistance layer is insulated from the base body ; It also includes a conductive element connected to the resistive layer.
  2. 根据权利要求1所述的加热元件，其特征在于，所述基体为绝缘基体。The heating element according to claim 1, wherein the substrate is an insulating substrate.
  3. 根据权利要求1所述的加热元件，其特征在于，所述基体为导电基体，所述导电基体的表面设有避开所述通孔的介质层，所述介质层上设有所述电阻层和所述导电元件。The heating element according to claim 1, wherein the substrate is a conductive substrate, the surface of the conductive substrate is provided with a dielectric layer that avoids the through hole, and the dielectric layer is provided with the resistance layer And the conductive element.
  4. 根据权利要求1 所述的加热元件，其特征在于，所述导电元件为导电层，所述导电层与电阻层连接，且所述导电层至少部分区域为加热元件的表面区域。 The heating element according to claim 1 , wherein the conductive element is a conductive layer, the conductive layer is connected to the resistance layer, and at least a part of the conductive layer is a surface area of the heating element .
  5. 根据权利要求1或4所述的加热元件，其特征在于，所述电阻层和导电元件的外侧至少部分地覆盖有保护层，所述保护层避开所述通孔。The heating element according to claim 1 or 4, wherein the outer side of the resistance layer and the conductive element is at least partially covered with a protective layer, and the protective layer avoids the through hole.
  6. 根据权利要求1 所述的加热元件，其特征在于，所述电阻层采用电阻浆料印刷后烧结成型。 The heating element according to claim 1 , wherein the resistance layer is sintered after printing with resistance paste .
  7. 根据权利要求1 所述的加热元件，其特征在于，所述通孔位于所述电阻层的中部和/ 或所述电阻层的边界处。 The heating element according to claim 1 , wherein the through hole is located in the middle of the resistance layer and/ or at the boundary of the resistance layer .
  8. 根据权利要求1 所述的加热元件，其特征在于，所述通孔为两个以上，所述电阻层以半包围所述通孔的方式布置 。 The heating element according to claim 1 , characterized in that there are more than two through holes, and the resistance layer is arranged in a manner of half surrounding the through holes .
  9. 一种雾化设备，包括权利要求1-8任一所述的加热元件，还包括导油元件，其特征在于，所述基体的一面设有所述电阻层，另一面与导油元件连接，所述通孔贯通基体的所述一面和基体的所述另一面。An atomization device, comprising the heating element according to any one of claims 1-8, and further comprising an oil guiding element, characterized in that the resistance layer is provided on one side of the substrate, and the other side is connected with the oil guiding element, The through hole penetrates the one surface of the base and the other surface of the base.
  10. 根据权利要求9 所述的雾化设备，其特征在于，所述雾化设备还包括电极，所述电极设置于基体的下方，所述电极的顶针与所述导电元件连接。 The atomization device according to claim 9 , wherein the atomization device further comprises an electrode, the electrode is arranged below the base, and the thimble of the electrode is connected to the conductive element .
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