WO2020244682A1 - Élément chauffant et dispositif d'atomisation - Google Patents

Élément chauffant et dispositif d'atomisation 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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WO
WIPO (PCT)
Prior art keywords
layer
heating element
conductive
substrate
resistance
Prior art date
Application number
PCT/CN2020/103387
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English (en)
Chinese (zh)
Inventor
丁毅
黎进良
杜昊
陈湖
Original Assignee
深圳市卓力能电子有限公司
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 深圳市卓力能电子有限公司 filed Critical 深圳市卓力能电子有限公司
Publication of WO2020244682A1 publication Critical patent/WO2020244682A1/fr

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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

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.

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  • Resistance Heating (AREA)

Abstract

L'invention concerne un élément chauffant (1) et un dispositif d'atomisation. L'élément chauffant (1) comprend un corps de base (10), ce corps de base (10) présentant un trou traversant (11) passant à travers celui-ci, le corps de base (10) étant en outre pourvu d'une couche résistive (30) évitant le trou traversant (11), la couche résistive (30) étant isolée du corps de base (10) ; l'élément chauffant (1) comprend en outre un élément conducteur (31), cet élément conducteur (31) étant connecté à la couche résistive (30). Dans l'élément chauffant (1), la couche résistive (30) est disposée sur le corps de base (10), de sorte que la résistance de l'élément chauffant (1) n'est pas influencée par les caractéristiques de matériau du corps de base (10) même ; par comparaison avec un élément chauffant de type ressort classique, l'élément chauffant (1) est moins susceptible de se déformer pendant l'assemblage et l'utilisation.
PCT/CN2020/103387 2019-06-04 2020-07-22 Élément chauffant et dispositif d'atomisation WO2020244682A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201920849659.2U CN210275912U (zh) 2019-06-04 2019-06-04 一种加热元件及雾化设备
CN201920849659.2 2019-06-04

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN210275912U (zh) * 2019-06-04 2020-04-10 深圳市卓力能电子有限公司 一种加热元件及雾化设备
CN114617299A (zh) * 2020-12-11 2022-06-14 常州市派腾电子技术服务有限公司 雾化芯、雾化器、气溶胶发生装置及雾化芯加工方法

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CN107969734A (zh) * 2017-12-25 2018-05-01 珠海诗朗豪泰科技有限公司 电子烟及其加热装置
CN207613199U (zh) * 2017-11-22 2018-07-17 深圳市卓力能电子有限公司 一种新型发热结构的电子烟
CN208129450U (zh) * 2018-04-26 2018-11-23 株洲利德英可电子科技有限公司 一种片式电子烟加热器及电子烟
DE102017222528B3 (de) * 2017-12-12 2019-01-24 Heraeus Sensor Technology Gmbh Heizeinheit für ein System zur Bereitstellung eines inhalierbaren Aerosols
CN109587840A (zh) * 2018-05-21 2019-04-05 深圳市卓力能电子有限公司 一种电子烟加热元件的加热方法及电子烟加热元件
CN210275912U (zh) * 2019-06-04 2020-04-10 深圳市卓力能电子有限公司 一种加热元件及雾化设备

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN207613199U (zh) * 2017-11-22 2018-07-17 深圳市卓力能电子有限公司 一种新型发热结构的电子烟
DE102017222528B3 (de) * 2017-12-12 2019-01-24 Heraeus Sensor Technology Gmbh Heizeinheit für ein System zur Bereitstellung eines inhalierbaren Aerosols
CN107969734A (zh) * 2017-12-25 2018-05-01 珠海诗朗豪泰科技有限公司 电子烟及其加热装置
CN208129450U (zh) * 2018-04-26 2018-11-23 株洲利德英可电子科技有限公司 一种片式电子烟加热器及电子烟
CN109587840A (zh) * 2018-05-21 2019-04-05 深圳市卓力能电子有限公司 一种电子烟加热元件的加热方法及电子烟加热元件
CN210275912U (zh) * 2019-06-04 2020-04-10 深圳市卓力能电子有限公司 一种加热元件及雾化设备

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