WO2022161252A1 - 电子雾化装置 - Google Patents

电子雾化装置 Download PDF

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Publication number
WO2022161252A1
WO2022161252A1 PCT/CN2022/073023 CN2022073023W WO2022161252A1 WO 2022161252 A1 WO2022161252 A1 WO 2022161252A1 CN 2022073023 W CN2022073023 W CN 2022073023W WO 2022161252 A1 WO2022161252 A1 WO 2022161252A1
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WO
WIPO (PCT)
Prior art keywords
heating element
thermistor
base
milliohms
ohms
Prior art date
Application number
PCT/CN2022/073023
Other languages
English (en)
French (fr)
Inventor
杨景
徐中立
李永海
Original Assignee
深圳市合元科技有限公司
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 深圳市合元科技有限公司 filed Critical 深圳市合元科技有限公司
Priority to EP22745127.5A priority Critical patent/EP4285751A4/en
Priority to US18/274,992 priority patent/US20240108075A1/en
Publication of WO2022161252A1 publication Critical patent/WO2022161252A1/zh

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
    • G01K1/16—Special arrangements for conducting heat from the object to the sensitive element
    • 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
    • A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
    • A24F40/48—Fluid transfer means, e.g. pumps
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/50—Control or monitoring
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/50—Control or monitoring
    • A24F40/51—Arrangement of sensors
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/50—Control or monitoring
    • A24F40/53—Monitoring, e.g. fault detection
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/50—Control or monitoring
    • A24F40/57—Temperature control
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
    • G01K7/16—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements
    • G01K7/22—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being a non-linear resistance, e.g. thermistor
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
    • G01K7/16—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements
    • G01K7/22—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being a non-linear resistance, e.g. thermistor
    • G01K7/24—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being a non-linear resistance, e.g. thermistor in a specially-adapted circuit, e.g. bridge circuit
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B1/00—Details of electric heating devices
    • H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
    • H05B1/0227—Applications
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/02—Details
    • H05B3/04—Waterproof or air-tight seals for heaters
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/40—Heating elements having the shape of rods or tubes
    • H05B3/42—Heating elements having the shape of rods or tubes non-flexible
    • H05B3/44—Heating elements having the shape of rods or tubes non-flexible heating conductor arranged within rods or tubes of insulating material
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/10—Devices using liquid inhalable precursors
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/014—Heaters using resistive wires or cables not provided for in H05B3/54
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/021—Heaters specially adapted for heating liquids
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/022—Heaters specially adapted for heating gaseous material

Definitions

  • the present application relates to the technical field of smoking articles, and in particular, to an electronic atomization device.
  • An electronic atomizer device is an electronic product that generates smoke for users to smoke by heating e-liquid. It generally has two parts: an atomizer and a battery assembly.
  • the inside of the atomizer stores e-liquid and a mist for heating e-liquid.
  • the atomizing core, the battery component can supply power to the atomizing core to generate heat and generate high temperature to heat the e-liquid.
  • the problem with the existing electronic atomization device is that when the pumping frequency is high or the continuous power output time is too long, the temperature of the atomizing core is prone to be too high, which will cause some e-liquids to be charred and carbonized at high temperatures, causing smoke and smoke. The darkening situation reduces the user's smoking experience.
  • the main purpose of the present application is to provide an electronic atomization device to solve the problems existing in the existing electronic atomization device when the pumping frequency is high or the continuous power output time is too long.
  • an electronic atomization device including a battery, a storage unit for storing liquid, and a heating element for heating the liquid;
  • the thermistor is arranged close to the heating element; the heat of the heating element can be transferred to the thermistor, thereby causing the resistance of the thermistor to change; the thermistor and the heating element and the batteries are electrically connected to form an electrical circuit;
  • control module configured to obtain an activation signal to conduct the electrical connection of the electrical circuit
  • the electrical circuit is configured such that during the conduction period, the resistance value of the thermistor changes to reduce the current flowing through the heating element.
  • FIG. 1 is a schematic diagram of an electronic atomization device provided in an embodiment of the present application.
  • FIG. 2 is a schematic cross-sectional view of an electronic atomization device provided by an embodiment of the present application
  • FIG. 3 is a schematic diagram of an atomization assembly provided by an embodiment of the present application.
  • FIG. 4 is an exploded schematic view of the atomizing assembly provided by the embodiment of the present application.
  • FIG. 5 is a schematic cross-sectional view of an atomizing assembly provided by an embodiment of the present application.
  • FIG. 6 is a schematic diagram of a heating assembly provided by an embodiment of the present application.
  • FIG. 7 is a schematic diagram of a holder provided by an embodiment of the present application.
  • Fig. 8 is another perspective schematic diagram of the holder provided by the embodiment of the present application.
  • FIG. 9 is a schematic diagram of a substrate provided in an embodiment of the present application.
  • FIG. 10 is a schematic diagram of a control module provided by an embodiment of the present application.
  • FIG. 11 is a schematic diagram of a circuit principle provided by an embodiment of the present application.
  • the electronic atomization device 10 includes a housing 11 , a nozzle assembly 12 , an atomization assembly 13 , a holder 14 , a base 15 , a blocking member 16 , a battery 17 , a control module 18 , a fixing seat 19 , Seal 20 and base 21 .
  • the casing 11 is cylindrical and hollow inside, the casing 11 has an upper open end and a lower open end, one end of the suction nozzle assembly 12 can be fixed on the upper open end, and one end of the base 21 can be fixed on the lower open end, thereby forming a housing space.
  • the suction nozzle assembly 12 , the atomization assembly 13 , the holder 14 , the base body 15 , the blocking member 16 , the battery 17 , the control module 18 , the fixing seat 19 , the sealing member 20 and other components are all arranged in the receiving space.
  • the atomizing assembly 13 includes a base 131 , a liquid guiding member 132 , a heating assembly 133 and a leakage preventing member 134 .
  • Both the liquid conducting member 132 and the heating element 133 are held on the base 131 .
  • the base 131 is substantially tubular, and the upper end of the base 131 is connected with the suction nozzle assembly 12 .
  • the base 131 has an extension (not shown in the drawings) extending toward the inner surface of the housing 11, and the extension abuts on the inner surface of the housing 11, so that the outer surface of the base 131, the inner surface of the housing 11 and the suction nozzle A storage unit A for storing liquid is defined between the assemblies 12 .
  • the atomizing assembly 13 further includes a sealing member (not shown in the drawings), and the sealing member is sleeved on the outer surface of the base 131 and located below the storage unit A. The seal is used to seal the gap between the outer surface of the base 131 and the inner surface of the housing 11 to prevent the liquid from flowing down.
  • the liquid guiding member 132 and the heating component 133 are both tubular, and the liquid guiding member 132 is wrapped around the periphery of the heating component 133.
  • the liquid guiding member 132 and the heating component 133 are arranged in the base 131 together.
  • the heating element 133 includes a porous base 1331 , a heating element 1332 , an electric wire 1333 and an electric wire 1334 .
  • the heating element 1332 is placed on the inner surface of the porous base 1331 or embedded in the porous base 1331 .
  • the wires 1333 and 1334 are respectively connected to the heating element 1332 and are coupled to the battery 17 .
  • the leak-proof member 134 is also held on the base 131 . Specifically, the leak-proof member 134 is disposed in the base 131 and is located below the liquid-conducting member 132 and the heating component 133 .
  • the leak-proof part 134 has an inner tube, an outer tube and an extension part (not shown in the drawings) extending from the outer surface of the inner tube to the inner surface of the outer tube; the extension part is recessed downward to form a collection cavity for collecting liquid and preventing the liquid from flowing into the Holder 14 .
  • the holder 14 includes a main body 141 , an insertion portion 142 , a limiting portion 143 and a limiting portion 144 .
  • the body 141 has a first end and a second end opposite to the first end, and a part of the end face of the first end extends toward the base 131 to form an insertion portion 142 , the diameter of the insertion portion 142 is smaller than that of the body 141 , As a result, another part of the end surface of the first end forms a stepped surface 1411 .
  • the insertion part 142 can be inserted into the base 131 , the stepped surface 1411 abuts against the end of the base 131 after the insertion, and the leakage preventing member 134 is located above the insertion part 142 . In this way, through the contact between the holder 14 and the base 131 , the heat of the heating element 1332 can be transferred to the thermistor 151 through the base 131 and the holder 14 .
  • the base body 15 is disposed between the heating element 1332 and the control module 18 .
  • the base 15 includes but is not limited to a circuit board, a fixing board, etc.; preferably, a circuit board is used, and by arranging the thermistor 151 on the circuit board, on the one hand, it is convenient for electrical connection, and on the other hand, it is convenient for the thermistor 151 to be close to the heat generation.
  • Element 1332 is set.
  • the base body 15 has a first surface and a second surface opposite to the first surface, and the thermistor 151 is disposed on the first surface.
  • the first surface is disposed toward the main body 141 , that is, disposed toward the atomizing assembly 13 or the heating element 1332 .
  • the limiting portion 143 and the limiting portion 144 are used to limit the movement of the base body 15 to keep the base body 15 at the second end.
  • the limiting portion 144 is formed to extend from the second end of the body 141 toward a direction away from the body 141 .
  • the limiting portion 143 is different from the limiting portion 144 in that it has an axially extending protruding portion. In this way, when the base body 15 is held at the second end of the body 141 , the limiting portion 144 can limit the axial movement of the base body 15 , and the limiting portion 143 can limit the axial and longitudinal movement of the base body 15 .
  • the battery 17 is disposed below the atomizing assembly 13 and is used to provide power for the electronic atomizing device 10 .
  • the battery 17 is a non-rechargeable battery.
  • the blocking member 16 is disposed between the atomizing component 13 and the battery 17 , and the blocking component 16 can separate the atomizing component 13 from the battery 17 and prevent the liquid from flowing into the battery 17 .
  • the fixing seat 19 is located below the battery 17 .
  • the fixing seat 19 is used for fixing the control module 18; the sealing member 20 is arranged between the control module 18 and the fixing seat 19 for sealing.
  • the control module 18 is used to obtain the activation signal, and then control the heating element 1332 to heat the liquid to generate an aerosol for the user to inhale.
  • control module 18 includes an airflow sensor and a control chip, and is integrally formed by the airflow sensor and the control chip. As shown in FIG. 10 , the integrated structure of the airflow sensor and the control chip can be referred to as 181 in the figure.
  • the control module 18 also has a first electrical connection end 182 , an output end 183 and a second electrical connection end 184 .
  • the ASIC design used in the control chip can avoid the crash phenomenon of the current MCU solution.
  • the base 21 has an air intake hole 211 , through which the air flow can flow in.
  • the control module 18 When passing through the control module 18 , it can be sensed by the air flow sensor therein, and then the heating element 1332 can be controlled by the control chip. Please refer to FIGS. 2 , 7-9 again.
  • the airflow After passing through the control module 18 and the battery 17 , the airflow passes through the blocking member 16 , the base body 15 , the holding member 14 , and the atomizing assembly 13 in sequence, and flows out from the suction nozzle assembly 12 Inhaling into the user's mouth, a in the figure is the airflow channel that flows through the blocking member 16 , the base 15 , the holding member 14 , the atomizing assembly 13 and the suction nozzle assembly 12 .
  • the airflow holes 1412 of the holder 14 and the airflow holes 153 of the base body 15 form part of the airflow channels.
  • the thermistor 151 , the heating element 1332 and the battery 17 are electrically connected to form an electrical circuit.
  • the first electrical connection terminal 182 of the control module 18 is electrically connected to the positive electrode of the battery 17
  • the output terminal 183 of the control module 18 is electrically connected to one end of the heating element 1332
  • the other end of the heating element 1332 is electrically connected.
  • One end is electrically connected to the second electrical connection end 184 of the control module 18 and one end of the thermistor 151
  • the other end of the thermistor 151 is electrically connected to the negative electrode of the battery 17 .
  • the holder 14 has a wire hole 1413 and the base 15 has a wire hole 152 for the passage of the power supply wire to form an electrical connection.
  • the thermistor 151 adopts a positive temperature coefficient thermistor. It can be seen from FIG. 2 that the holder 14 holding the base body 15 is in contact with the base 131, so that the thermistor 151 is set close to the heating element 1332, and the heating element The heat generated by the heating of the 1332 can be transferred to the thermistor 151, thereby causing the resistance of the thermistor 151 to change; the transfer method can be conduction or radiation.
  • the heating element 133 has a certain distance from the lower end of the base 131, the holder 14 abuts against the lower end of the base 131 (or, since the leak-proof member 134 is disposed between the holder 14 and the heating element 131) between the components 133 ), a part of the base 131 and/or the leak-proof member 134 forms a spacer, thereby maintaining a preset distance between the thermistor 151 and the heating element 1332 .
  • the distance between the thermistor 151 and the heating element 1332 is about 8mm ⁇ 12mm, preferably 10mm.
  • the thermistor 151 can obtain a suitable amount of heat, resulting in a change in the resistance of the thermistor 151, thereby realizing the thermal protection function.
  • the body 141 of the holder 14 has a through hole (refer to the airflow hole 1412 in the figure, the through hole is in communication with the airflow hole 1412 ), and the heating element 1332 can be heated through the through hole. The generated heat is transferred to the thermistor 151 .
  • the control module 18 senses the change in airflow (ie, obtains the activation signal)
  • the B+ and O+ terminals of the control module 18 form a path, and the current flows from the positive electrode of the battery 17, and passes through the first The electrical connection terminal 182 , the second electrical connection terminal 184 , the heating element 1332 and the thermistor 151 flow into the negative electrode of the battery 17 .
  • the activation signal is not limited to the change of the inhalation airflow, for example, it may be a switch control signal and the like.
  • the zero-power room temperature resistance of the thermistor 151 is between 50 milliohms and 150 milliohms; or, between 50 milliohms and 120 milliohms; or, between 50 milliohms and 100 milliohms; or, between 50 milliohms and 50 milliohms. ohms to 80 milliohms; or, between 60 milliohms to 80 milliohms.
  • the resistance of the heating element 1332 is between 0.8 ohms and 2 ohms. Therefore, the heating value and loss of the thermistor 151 are small, and the influence on the heating element 1332 is also small. At this time, the heat transmitted by the heating element 1332 to the thermistor 151 and the heat generated by the thermistor 151 are both relatively small, and the thermal protection function will not be triggered.
  • the temperature of the heating element 1332 rises sharply, the heat transferred by the heating element 1332 to the thermistor 151 and the heat generated by the thermistor 151 increase rapidly.
  • the resistance value of the thermistor 151 will increase as the temperature of the heating element 1332 rises, so that the overall resistance value in the electrical circuit increases; after the overall resistance value increases, the current in the electrical circuit decreases, That is, the current flowing through the heating element 1332 will become smaller, so that the temperature of the heating element 1332 can be limited to a lower range, so as to realize the thermal protection function.
  • the thermistor 151 is a positive temperature coefficient thermistor for description. In other examples, the thermistor 151 may be a negative temperature coefficient thermistor, and the electrical connection relationship between the thermistor 151 and the heating element 1332 is to connect the thermistor 151 and the heating element 1332 in parallel (refer to FIG.
  • the zero-power room temperature resistance of the negative temperature coefficient thermistor is between 5 ohms to 25 ohms; alternatively, between 7 ohms and 25 ohms; alternatively, between 8 ohms and 25 ohms; alternatively, between 10 ohms ⁇ 25 ohms; alternatively, between 12 ohms and 20 ohms.

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  • General Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
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Abstract

本申请公开了一种电子雾化装置，包括：电池、存储单元、发热元件；热敏电阻，靠近发热元件设置；发热元件的热量可传递至热敏电阻，进而导致热敏电阻的阻值发生变化；热敏电阻与发热元件以及电池电连接以形成电回路；控制模块，配置为获取启动信号，以导通电回路的电连接；其中，电回路配置为在导通期间，热敏电阻的阻值变化使得流经发热元件的电流降低。本申请通过热敏电阻感测发热元件的温度引起阻值发生变化，而用户吸食气溶胶时流经发热元件的电流可随着热敏电阻的阻值变化而降低；从而在吸食频次较高或者持续功率输出时间过长的情形下，可将发热元件的温度限制在较低的范围，实现热保护功能。

Description

电子雾化装置
相关文件的交叉引用
本申请要求2021年01月28日向中国国家知识产权局递交的申请号为202110118808X，名称为“电子雾化装置”的在先申请的优先权，上述在先申请的内容以引入的方式并入本文本中。
技术领域
本申请涉及烟具技术领域，尤其涉及一种电子雾化装置。
背景技术
电子雾化装置是一种通过加热烟油产生烟雾供用户吸食的电子产品，其一般具有雾化器和电池组件两个部分，雾化器内部存储有烟油以及设置有用于加热烟油的雾化芯，电池组件可以给雾化芯供电使其发热产生高温对烟油进行加热。
现有电子雾化装置存在的问题是，在抽吸频次较高或者持续功率输出时间过长时，易出现雾化芯温度过高的情况，从而导致部分烟油在高温下烧焦碳化、烟雾变黑的情况，降低了用户的抽吸体验。
发明内容
本申请的主要目的在于提供一种电子雾化装置，以解决现有电子雾化装置在抽吸频次较高或者持续功率输出时间过长时存在的问题。
为了解决该问题，本申请提供一种电子雾化装置，包括电池，用于存储液体的存储单元，以及用于加热所述液体的发热元件；
还包括：
热敏电阻，靠近所述发热元件设置；所述发热元件的热量可传递至所述热敏电阻，进而导致所述热敏电阻的阻值发生变化；所述热敏电阻与所述发热元件以及所述电池电连接以形成电回路；
控制模块，配置为获取启动信号，以导通所述电回路的电连接；
其中，所述电回路配置为在导通期间，所述热敏电阻的阻值变化使得流经所述发热元件的电流降低。
本申请提供的电子雾化装置，通过热敏电阻感测发热元件的温度引起阻值发生变化，而用户吸食气溶胶时流经发热元件的电流可随着热敏电阻的阻值变化而降低；从而在吸食频次较高或者持续功率输出时间过长的情形下，可将发热元件的温度限制在较低的范围，实现热保护功能。
附图说明
本申请目的的实现、功能特点及优点将结合实施例，参照附图做进一步说明。一个或多个实施例通过与之对应的附图中的图片进行示例性说明，这些示例性说明并不构成对实施例的限定，附图中具有相同参考数字标号的元件表示为类似的元件，除非有特别申明，附图中的图不构成比例限制。
图1是本申请实施例提供的电子雾化装置示意图；
图2是本申请实施例提供的电子雾化装置的剖面示意图；
图3是本申请实施例提供的雾化组件示意图；
图4是本申请实施例提供的雾化组件的分解示意图；
图5是本申请实施例提供的雾化组件的剖面示意图；
图6是本申请实施例提供的发热组件示意图；
图7是本申请实施例提供的保持件示意图；
图8是本申请实施例提供的保持件另一视角示意图；
图9是本申请实施例提供的基体示意图；
图10是本申请实施例提供的控制模块示意图；
图11是本申请实施例提供的电路原理示意图。
具体实施方式
应当理解，此处所描述的具体实施例仅仅用以解释本申请，并不用于限定本申请。为了便于理解本申请，下面结合附图和具体实施方式，对本申请进行更详细的说明。需要说明的是，当元件被表述“固定于”另一个元件，它可以直接在另一个元件上、或者其间可以存在一个或多个居中的元件。当一个元件被表述“连接”另一个元件，它可以是直接连接到另一个元件、或者其间可以存在一个或多个居中的元件。本说明书所使用的术语“上”、“下”、“左”、“右”、“内”、“外”以及类似的表述只是为了说明的目的。
除非另有定义，本说明书所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同。本说明书中在本申请的说明书中所使用的术语只是为了描述具体的实施方式的目的，不是用于限制本申请。本说明书所使用的术语“和/或”包括一个或多个相关的所列项目的任意的和所有的组合。
如图1-图2所示，电子雾化装置10包括外壳11、吸嘴组件12、雾化组件13、保持件14、基体15、阻隔件16、电池17、控制模块18、固定座19、密封件20以及底座21。
外壳11呈圆柱状且内部中空，外壳11具有上敞口端和下敞口端，吸嘴组件12的一端可固定在上敞口端，底座21的一端可固定在下敞口端，进而形成收容空间。吸嘴组件12、雾化组件13、保持件14、基体15、阻隔件16、电池17、控制模块18、固定座19、密封件20等部件均设置在收容空间中。
请结合图3-图6进行理解，雾化组件13包括基座131、导液件132、发热组件133以及防漏件134。
导液件132与发热组件133均保持在基座131上。具体地，基座131大致呈管状，其上端与吸嘴组件12连接。基座131具有朝向外壳11的内表面延伸的延伸部(附图未示出)，延伸部抵接在外壳11的内表面，从而使得基座131的外表面、外壳11的内表面以及吸嘴组件12之间界定用于存储液体的存储单元A。雾化组件13还包括密封件(附图未示出)，密封件套接在基座131的外表面上，且位于存储单元A的下方。密封件用于对基座131的外表面与外壳11的内表面之间的间隙进行密封，以阻止液体往下流动。
导液件132与发热组件133均呈管状，导液件132包裹在发热组件133的外围，导液件132与发热组件133一起设置在基座131内，基座131的管壁上具有多个进液口1311，通过进液口1311，发热组件133与存储单元A流体连通。如图6所示，发热组件133包括多孔基体1331、发热元件1332、电线1333以及电线1334。发热元件1332置于多孔基体1331的内表面，或者嵌入在多孔基体1331中。电线1333和电线1334分别与发热元件1332连接，并与电池17藕接。
防漏件134也保持在基座131上。具体地，防漏件134设置在基座131内，且位于导液件132和发热组件133的下方。防漏件134具有内管、外管以及自 内管外表面延伸至外管内表面的延伸部(附图未示出)；延伸部向下凹陷形成收集腔，用于收集液体，防止液体流入至保持件14。
请结合图7-图9进行理解，保持件14包括本体141、插入部142、限位部143以及限位部144。
本体141具有第一端以及与所述第一端相对的第二端，所述第一端的部分端面朝向基座131的方向延伸形成插入部142，插入部142的直径小于本体141的直径，从而使得所述第一端的另一部分端面形成台阶面1411。插入部142可插入到基座131中，在插入之后台阶面1411抵接在基座131的端部，防漏件134位于插入部142的上方。这样，通过保持件14与基座131的接触，发热元件1332热量可通过基座131和保持件14传递至热敏电阻151。
基体15设置在发热元件1332与控制模块18之间。基体15包括但不限于电路板、固定板等等；优选的，采用电路板，通过将热敏电阻151布置在电路板上，一方面便于电连接，另一方面便于将热敏电阻151靠近发热元件1332设置。基体15具有第一面以及与所述第一面相对的第二面，热敏电阻151设置在所述第一面上。在基体15保持在本体141的第二端时，所述第一面是朝向本体141设置的，即朝向雾化组件13或者发热元件1332设置。限位部143和限位部144用于限制基体15移动，以将基体15保持在所述第二端。限位部144自本体141的第二端朝向远离本体141的方向延伸形成，限位部143与限位部144不同的是，具有轴向延伸的凸出部分。这样，在基体15保持在本体141的第二端时，限位部144可限制基体15轴向移动，限位部143可限制基体15轴向和纵向移动。
电池17设置在雾化组件13的下方，用于为电子雾化装置10提供电力。在本示例中，电池17为不可充电电池。阻隔件16设置在雾化组件13与电池17之间，阻隔件16可将雾化组件13与电池17隔开，并阻止液体流入电池17中。
固定座19位于电池17的下方。固定座19用于固定控制模块18；密封件20设置在控制模块18与固定座19之间，以进行密封。控制模块18用于获取启动信号，进而控制发热元件1332加热液体以生成供用户吸食的气溶胶。
在本示例中，控制模块18包括气流传感器以及控制芯片，且由所述气流传感器和控制芯片一体形成。如图10所示，气流传感器和控制芯片一体形成的结构可参考图中的181所示，控制模块18还具有第一电连接端182、输出端183 以及第二电连接端184。控制芯片采用的ASI C设计，可避免目前的MCU方案的死机现象。
底座21上具有进气孔211，气流可通过该进气孔211流入，经过控制模块18时，可被其中的气流传感器感测到，进而通过控制芯片控制发热元件1332。请再参考图2、图7-图9所示，气流在经过控制模块18和电池17之后，依次经过阻隔件16、基体15、保持件14、雾化组件13，并从吸嘴组件12流出至用户的嘴中进行吸食，图中的a为流经阻隔件16、基体15、保持件14、雾化组件13以及吸嘴组件12的气流通道。保持件14的气流孔1412、基体15的气流孔153形成部分气流通道。
所述热敏电阻151、所述发热元件1332以及所述电池17电连接以形成电回路。如图11所示，在本示例中，控制模块18的第一电连接端182与电池17的正极电连接，控制模块18的输出端183与发热元件1332的一端电连接，发热元件1332的另一端与控制模块18的第二电连接端184以及热敏电阻151的一端电连接，热敏电阻151的另一端与电池17的负极电连接。请再参考图2、图7-图9所示，保持件14具有电线孔1413、基体15具有电线孔152，以供供电线通过，进而形成电连接。
热敏电阻151采用的是正温度系数热敏电阻，由图2可知，保持基体15的保持件14是抵接在基座131上的，这样，使得热敏电阻151靠近发热元件1332设置，发热元件1332加热产生的热量可传递至热敏电阻151，进而导致热敏电阻151的阻值发生变化；传递方式可以为传导或者辐射。
进一步地，由前述描述可知，由于发热组件133与基座131的下端具有一定的距离，而保持件14抵接在基座131的下端(或者，由于防漏件134设置在保持件14与发热组件133之间)，部分基座131和/或防漏件134形成间隔件，进而使得热敏电阻151与发热元件1332之间保持预设的距离。具体地，热敏电阻151与发热元件1332的距离大约在8mm～12mm之间，优选的为10mm。这样，通过将热敏电阻151与发热元件1332保持预设的距离，可使得热敏电阻151能够获得较为合适的热量，导致热敏电阻151的阻值发生变化，进而实现热保护功能。
进一步地，为了提升传递效率，保持件14的本体141具有通孔(参考图中的气流孔1412所示，该通孔与气流孔1412是连通的)，通过该通孔可使得发 热元件1332加热产生的热量传递至热敏电阻151。
请再参考图11所示，用户吸食时，控制模块18感测到气流变化(即获取启动信号)之后，控制模块18的B+与O+端形成通路，电流从电池17的正极流出，经过第一电连接端182、第二电连接端184、发热元件1332以及热敏电阻151，流入至电池17的负极。需要说明的是，启动信号并不限于吸食气流的变化，例如：可以为开关控制信号等等。
热敏电阻151的零功率室温阻值介于50毫欧姆～150毫欧姆；或者，介于50毫欧姆～120毫欧姆；或者，介于50毫欧姆～100毫欧姆；或者，介于50毫欧姆～80毫欧姆；或者，介于60毫欧姆～80毫欧姆。用户正常吸食时，发热元件1332的阻值介于0.8欧姆～2欧姆。因此，热敏电阻151的发热量和损耗较小，对发热元件1332的影响也较小。此时，发热元件1332传递到热敏电阻151的热量和热敏电阻151自身发热量均较小，不会触发热保护功能。
当吸食的频次变高或因为异常情况下持续功率输出时间过长时，发热元件1332的温度急剧上升，发热元件1332传递到热敏电阻151的热量和热敏电阻151自身发热量迅速增大，进而导致热敏电阻151的阻值将随着发热元件1332的温度上升而增大，从而使得电回路中的总体阻值增大；总体阻值增大之后，导致电回路中的电流变小，即流经发热元件1332的电流将变小，进而可将发热元件1332的温度限制在较低的范围，实现热保护功能。或者，热敏电阻151的阻值增大，其两端的压降将增大，导致控制模块18的供电电压变低，使得控制模块18不能工作，进而导致电回路中的电流变小，实现热保护功能。
需要说明的是，前述示例中，均是以热敏电阻151是正温度系数热敏电阻进行说明。在其他示例中，热敏电阻151可以是负温度系数热敏电阻，其与发热元件1332的电连接关系，是将热敏电阻151与发热元件1332并联连接(可参考图11进行理解)；在该示例中，负温度系数热敏电阻的零功率室温阻值介于5欧姆～25欧姆；或者，介于7欧姆～25欧姆；或者，介于8欧姆～25欧姆；或者，介于10欧姆～25欧姆；或者，介于12欧姆～20欧姆。
需要说明的是，本申请的说明书及其附图中给出了本申请的较佳的实施例，但是，本申请可以通过许多不同的形式来实现，并不限于本说明书所描述的实施例，这些实施例不作为对本申请内容的额外限制，提供这些实施例的目的是使对本申请的公开内容的理解更加透彻全面。并且，上述各技术特征继续相互 组合，形成未在上面列举的各种实施例，均视为本申请说明书记载的范围；进一步地，对本领域普通技术人员来说，可以根据上述说明加以改进或变换，而所有这些改进和变换都应属于本申请所附权利要求的保护范围。

Claims (17)

  1. 一种电子雾化装置，包括电池，用于存储液体的存储单元，以及用于加热所述液体的发热元件；
    其特征在于，还包括：
    热敏电阻，靠近所述发热元件设置；所述发热元件的热量可传递至所述热敏电阻，进而导致所述热敏电阻的阻值发生变化；所述热敏电阻与所述发热元件以及所述电池电连接以形成电回路；
    控制模块，配置为获取启动信号，以导通所述电回路的电连接；
    其中，所述电回路配置为在导通期间，所述热敏电阻的阻值变化使得流经所述发热元件的电流降低。
  2. 根据权利要求1所述的电子雾化装置，其特征在于，所述热敏电阻为正温度系数热敏电阻，且所述正温度系数热敏电阻与所述发热元件串联连接；或者，所述热敏电阻为负温度系数热敏电阻，所述负温度系数热敏电阻与所述发热元件并联连接。
  3. 根据权利要求2所述的电子雾化装置，其特征在于，所述控制模块具有第一电连接端、第二电连接端以及输出端；
    所述第一电连接端与所述电池的正极电连接，所述输出端与所述发热元件的一端电连接，所述发热元件的另一端与所述第二电连接端以及所述热敏电阻的一端电连接，所述热敏电阻的另一端与所述电池的负极电连接。
  4. 根据权利要求2或3所述的电子雾化装置，其特征在于，所述正温度系数热敏电阻的零功率室温阻值介于50毫欧姆～150毫欧姆；或者，介于50毫欧姆～120毫欧姆；或者，介于50毫欧姆～100毫欧姆；或者，介于50毫欧姆～80毫欧姆；或者，介于60毫欧姆～80毫欧姆。
  5. 根据权利要求2所述的电子雾化装置，其特征在于，所述负温度系数热敏电阻的零功率室温阻值介于5欧姆～25欧姆；或者，介于7欧姆～25欧姆；或者，介于8欧姆～25欧姆；或者，介于10欧姆～25欧姆；或者，介于12欧姆～20欧姆。
  6. 根据权利要求1-5任一所述的电子雾化装置，其特征在于，还包括间隔件，所述间隔件配置为使得所述热敏电阻和所述发热元件保持预设的距离。
  7. 根据权利要求1-6任一所述的电子雾化装置，其特征在于，还包括基体，所述热敏电阻设置在所述基体上。
  8. 根据权利要求7所述的电子雾化装置，其特征在于，所述基体具有第一面以及与所述第一面相对的第二面；所述热敏电阻设置在所述第一面上，所述第一面朝向所述发热元件设置。
  9. 根据权利要求7所述的电子雾化装置，其特征在于，所述控制模块包括气流传感器以及控制芯片，所述基体设置在所述发热元件与所述控制模块之间。
  10. 根据权利要求9所述的电子雾化装置，其特征在于，所述基体具有气流孔，以使得气流流经所述气流孔。
  11. 根据权利要求7-10任一所述的电子雾化装置，其特征在于，还包括保持件，所述基体保持在所述保持件上。
  12. 根据权利要求11所述的电子雾化装置，其特征在于，所述保持件包括本体，具有第一端以及与所述第一端相对的第二端；
    所述第一端靠近所述发热元件设置，所述基体保持在所述第二端。
  13. 根据权利要求12所述的电子雾化装置，其特征在于，所述本体上具有通孔，以使得所述发热元件的热量可通过所述通孔传递至所述热敏电阻。
  14. 根据权利要求12所述的电子雾化装置，其特征在于，所述保持件还包括设置在所述第二端上的限位部；所述限位部用于限制所述基体移动，以将所述基体保持在所述第二端。
  15. 根据权利要求11-14任一所述的电子雾化装置，其特征在于，还包括用于保持所述发热元件的基座；所述保持件与所述基座接触，以使得所述发热元件的热量可通过所述基座和所述保持件传递至所述热敏电阻。
  16. 根据权利要求15所述的电子雾化装置，其特征在于，所述基座呈筒状，所述保持件的第一端具有台阶面，所述台阶面与所述基座的端部抵接。
  17. 根据权利要求16所述的电子雾化装置，其特征在于，还包括用于防止液体流至所述保持件的防漏件；
    所述防漏件和所述发热元件均设置在所述基座内，且所述防漏件设置在所述发热元件与所述保持件之间。
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