WO2019037341A1 - 升压电路、电池装置和电子烟 - Google Patents

升压电路、电池装置和电子烟 Download PDF

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Publication number
WO2019037341A1
WO2019037341A1 PCT/CN2017/115837 CN2017115837W WO2019037341A1 WO 2019037341 A1 WO2019037341 A1 WO 2019037341A1 CN 2017115837 W CN2017115837 W CN 2017115837W WO 2019037341 A1 WO2019037341 A1 WO 2019037341A1
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WIPO (PCT)
Prior art keywords
electrically connected
module
capacitor
booster circuit
boosting
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PCT/CN2017/115837
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English (en)
French (fr)
Inventor
邱伟华
陈汉森
Original Assignee
常州聚为智能科技有限公司
卓尔悦欧洲控股有限公司
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Application filed by 常州聚为智能科技有限公司, 卓尔悦欧洲控股有限公司 filed Critical 常州聚为智能科技有限公司
Priority to US16/641,230 priority Critical patent/US11547147B2/en
Priority to EP17922083.5A priority patent/EP3673753A1/en
Publication of WO2019037341A1 publication Critical patent/WO2019037341A1/zh

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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
    • A24F40/50—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
    • A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/32—Means for protecting converters other than automatic disconnection
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of dc power input into dc power output
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
    • H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters

Definitions

  • the present disclosure relates to the field of electronic technology, and more particularly to a booster circuit, a battery device, and an electronic cigarette.
  • Electronic cigarettes are electronic products that mimic cigarettes and generally consist of atomizers and battery devices.
  • the atomizer is used as an atomization component of the electronic cigarette, and the electricity can generate smoke;
  • the battery device serves as a power supply control component of the electronic cigarette, and supplies the working voltage to the atomizer.
  • a booster circuit is generally provided in the battery device of the electronic cigarette, and the booster circuit mainly includes a boosting module and a diode, wherein the battery in the battery device is connected in series with the boost module, the diode, and the load in the battery device.
  • the load is short-circuited to the ground, resulting in the battery being connected in series with the boost module, the diode and the ground, and the resistance in the entire boost circuit is relatively small, thereby causing the current in the boost circuit.
  • the load is short-circuited to the ground, resulting in the battery being connected in series with the boost module, the diode and the ground, and the resistance in the entire boost circuit is relatively small, thereby causing the current in the boost circuit.
  • the present disclosure provides A booster circuit, a battery device, and an electronic cigarette.
  • the technical solution is as follows:
  • a booster circuit including a boosting module, a protection capacitor, a rectifier diode, a voltage feedback module, and an output control resistor, wherein:
  • the power input end of the boosting module is electrically connected to the power source, the output end of the boosting module is electrically connected to the first end of the protection capacitor, and the second end of the protection capacitor is grounded;
  • the anode of the rectifier diode is electrically connected to the second end of the protection capacitor, and the cathode of the rectifier diode is electrically connected to the first end of the voltage feedback module, respectively.
  • the conduction direction of the flow diode is the direction in which the positive electrode is directed to the negative pole thereof;
  • the second end of the voltage feedback module is electrically connected to the feedback end of the boosting module and the first end of the output control resistor, and the second end of the output control resistor is grounded;
  • the enable end of the boost module is electrically connected to the controller, and the ground end of the boost module is grounded;
  • the protection capacitor is configured to block the power source from directly discharging to the ground when the load is short-circuited.
  • the boosting circuit further includes a grounding diode
  • the anode of the grounding diode is electrically connected to the second end of the protection capacitor, and the anode of the grounding diode is grounded, wherein the conducting direction of the grounding diode is the direction in which the positive pole is directed to the negative pole thereof.
  • the boosting module includes an inductor and a boost converter
  • the first end of the inductor and the power input end of the boost converter are electrically connected to the power source, and the second end of the inductor and the output end of the boost converter are connected to the protection capacitor The first end of the electrical connection;
  • the feedback end of the boost converter is electrically connected to the second end of the voltage feedback module and the first end of the output control resistor;
  • the enable end of the boost converter is electrically connected to the controller, and the ground terminal of the boost converter is grounded.
  • the boosting circuit further includes a power supply filter capacitor
  • the first end of the power filter capacitor is electrically connected to the power input end of the boost converter, and the second end of the power filter capacitor is grounded.
  • the boosting circuit further includes an output filter capacitor
  • the first end of the output filter capacitor is electrically connected to the load, and the second end of the output filter capacitor is grounded.
  • the voltage feedback module includes a feedback resistor and a feedforward capacitor
  • the first end of the feedback resistor and the first end of the feedforward capacitor are electrically connected to the negative pole of the rectifier diode, and the second end of the feedback resistor and the second end of the feedforward capacitor are both The feedback end of the boosting module and the first end of the output control resistor are electrically connected.
  • a battery device including a battery, a controller, a load, and the boosting circuit of the first aspect, wherein:
  • the battery is electrically connected to a power input end of the boosting module in the boosting circuit;
  • the controller is electrically connected to an enable end of the boost module
  • the load is electrically connected to a cathode of the rectifier diode in the boosting circuit.
  • an electronic cigarette comprising an atomizer and the battery device of the second aspect.
  • a protection capacitor is disposed between the boosting module and the rectifier diode, and the capacitor is connected to the characteristics of alternating current and direct current.
  • the protection capacitor is located on the line between the power supply and the load. Therefore, the protective capacitor is placed between the power supply and the load under direct current.
  • the circuit is open, so that the circuit between the power supply and ground is also open. In this way, the current in the booster circuit is instantaneously increased due to the connection of the power source and the ground, and the components in the booster circuit are burned out, thereby protecting the components of the booster circuit.
  • FIG. 1 is a schematic structural diagram of a booster circuit according to an exemplary embodiment
  • FIG. 2 is a schematic structural diagram of a booster circuit according to an exemplary embodiment
  • FIG. 3 is a schematic structural diagram of a booster circuit according to an exemplary embodiment
  • FIG. 4 is a schematic structural diagram of a booster circuit according to an exemplary embodiment
  • FIG. 5 is a schematic structural diagram of a booster circuit according to an exemplary embodiment
  • FIG. 6 is a schematic structural diagram of a booster circuit according to an exemplary embodiment.
  • An exemplary embodiment of the present disclosure provides a boosting circuit, as shown in FIG. 1, the boosting circuit includes a boosting module 1, a protection capacitor 2, a rectifier diode 3, a voltage feedback module 4, and an output control resistor 5, wherein The power input end of the boost module 1 is electrically connected to the power source, the output end of the boost module 1 is electrically connected to the first end of the protection capacitor 2, the second end of the protection capacitor 2 is grounded, and the positive pole of the rectifier diode 3 is protected.
  • the second end of the capacitor 2 is electrically connected, and the cathode of the rectifier diode 3 is electrically connected to the first end of the voltage feedback module 4 and the load 6 respectively, wherein the conduction direction of the rectifier diode 3 is the direction in which the positive electrode is directed to the negative pole thereof;
  • the second end of the voltage feedback module 4 is electrically connected to the feedback end of the boosting module 1 and the first end of the output control resistor 5, and the second end of the output control resistor 5 is grounded; the enable end and the control of the boosting module 1
  • the device 7 is electrically connected, the grounding end of the boosting module 1 is grounded, and the protection capacitor 2 is used to block the power supply from directly discharging to the ground when the load 6 is short-circuited.
  • the booster circuit is applied to a battery device of an electronic cigarette, and is powered by an OLED (Organic Light-Emitting Diode) screen, and may also be a MOS (Metal-Oxide-Semiconductor) tube.
  • OLED Organic Light-Emitting Diode
  • MOS Metal-Oxide-Semiconductor
  • the power supply is a power supply component for supplying a voltage to the boosting module 1.
  • the battery can be a battery, such as a lithium battery, a nickel-cadmium battery, a nickel-hydrogen battery, etc., which is not limited in this embodiment. It is a battery.
  • the boost module 1 includes an inductor 101 and a boost converter 102.
  • the inductor 101 acts as an energy storage component and can discharge to the load 6.
  • the first end of the inductor 101 and the power input end of the boost converter 102 are electrically connected to the battery 8, and the second end of the inductor 101 and the output end of the boost converter 102 are electrically connected to the first end of the protection capacitor 2. connection.
  • the boost converter 102 in this embodiment can select a high-frequency low-power boost converter of the type TPS61040, and the switching frequency can reach one megahertz, and can output a voltage between 1.8 volts and 28 volts.
  • SW switch
  • the inductor 101 is stored.
  • the SW pin is turned off, the inductor 101 is outward.
  • VSS voltage series
  • FB feedback
  • EN energy, enable
  • VIN voltage in
  • a protective capacitor 2 is provided between the inductor 101 and the rectifier diode 3, and the capacitor is connected to a DC-DC characteristic.
  • the protection capacitor 2 is located on the line between the power supply and the load 6, so the protection capacitor 2 is powered under the direct current.
  • the circuit between the load 6 and the load 6 is open circuit, so that the circuit between the power source and the ground is also broken. In this way, the current in the booster circuit is instantaneously increased due to the connection of the power source and the ground, and the components in the booster circuit are burned out, thereby protecting the components of the booster circuit.
  • the enable terminal EN of the boost converter 102 is electrically connected to the controller 7 in the battery device, and the controller 7 is used to control the operation of the boost converter 102. Ground the ground.
  • the basic principle of boost circuit boosting can be as follows:
  • the boost converter 102 After the controller 7 outputs an enable signal to the EN pin, the boost converter 102 starts operating, and the boost converter 102 and the inductor 101 oscillate.
  • the SW pin When the SW pin is turned on, the inductor 101 stores energy, and when the SW pin is turned off, the inductor 101 is powered.
  • the intermittent square wave voltage does not belong to direct current, and thus, the capacitor 2 can be protected.
  • the voltage supplied to the load 6 by the boosting circuit is the sum of the voltage of the battery 8 and the self-inductance voltage of the inductor 101 (when the forward voltage drop of the rectifier diode 3 is negligible).
  • the voltage of the battery 8 is usually between 1.5 volts and 4.2 volts, and the self-inductance voltage of the inductor 101 can reach up to 28 volts. Therefore, the boosting circuit can output several tens of volts at a voltage of several volts. The volt voltage is supplied to the load.
  • the booster circuit further includes a grounding diode 11, as shown in FIG.
  • the cathode of the diode 11 is electrically connected to the second end of the protection capacitor 2, and the anode of the ground diode 11 is grounded, wherein the conduction direction of the ground diode 11 is the direction in which the anode is directed to the cathode thereof.
  • the boosting module 1 periodically supplies a pulse voltage to the load 6 for the load 6 to operate.
  • the voltage feedback module 4 needs to be provided in the boost circuit.
  • the voltage feedback module 4 includes a feedback resistor 401 and a feedforward capacitor 402.
  • the first end of the feedback resistor 401 and the first end of the feedforward capacitor 402 are electrically connected to the cathode of the rectifier diode 3, and the feedback is provided.
  • the second end of the resistor 401 and the second end of the feedforward capacitor 402 are electrically connected to the feedback end of the boosting module 1 and the first end of the output control resistor 5.
  • the relationship between the voltage output by the boosting module 1 and the voltage dividing resistor may be:
  • V out (1+R 1 /R 2 )V ref
  • V out is the voltage output by the boosting module 1;
  • R 1 is the resistance value of the feedback resistor 401, which may be, for example, 470 kilo ohms;
  • R 2 is the resistance value of the output control resistor 5, for example, may be 56 kilo ohms;
  • Ref is the voltage reference value in boost converter 102, typically 1.233 volts.
  • the battery 8 is subjected to interference from the outside (such as a surrounding magnetic field) during the output of the voltage to the boost converter 102.
  • a capacitor for filtering is disposed at the output end of the power supply, and the corresponding structure may be:
  • the voltage circuit further includes a power supply filter capacitor 9. As shown in FIG. 5, the first end of the power supply filter capacitor 9 is electrically connected to the input end of the boost converter 102, and the second end of the power supply filter capacitor 9 is grounded.
  • a capacitor for filtering is disposed at the output end of the boosting circuit, and the corresponding structure may be:
  • the circuit also includes an output filter capacitor 10. As shown in FIG. 6, the first end of the output filter capacitor 10 is electrically coupled to the load 6, and the second end of the output filter capacitor 10 is coupled to ground.
  • the protection capacitor 2 is provided between the boosting module 1 and the rectifier diode 3, and the capacitor is connected to the characteristics of alternating current and direct current.
  • Battery device in actual production assembly In the process, even if the load 6 is short-circuited to the ground, since the power supply is direct current, the protection capacitor 2 is located on the line between the power source and the load 6, so that the protection capacitor 2 between the power source and the load 6 is made under direct current.
  • the circuit is open, so that the circuit between the power supply and ground is also open. In this way, the current in the booster circuit is instantaneously increased due to the connection of the power source and the ground, and the components in the booster circuit are burned out, thereby protecting the components of the booster circuit.
  • Still another exemplary embodiment of the present disclosure shows a battery device including a battery 8, a controller 7, a load 6, and a booster circuit according to the first embodiment, wherein: the battery 8 and the booster circuit are boosted
  • the input end of the module 1 is electrically connected; the controller 7 is electrically connected to the enable end of the boost module 1; the load 6 is electrically connected to the second end of the rectifier diode 3 in the boost circuit.
  • the protection capacitor 2 in the actual production assembly process, even if a load short circuit to the ground occurs, since the power supply provides direct current, the protection capacitor 2 is located between the power source and the load 6. On the line, therefore, the protection capacitor 2 under DC causes the circuit between the power supply and the load 6 to be open, so that the circuit between the power supply and the ground is also broken. In this way, the current in the booster circuit is instantaneously increased due to the connection of the power source and the ground, and the components in the booster circuit are burned out, thereby protecting the components of the booster circuit.
  • Yet another exemplary embodiment of the present disclosure shows an electronic cigarette including an atomizer and a battery device according to the second embodiment, wherein the atomizer is an electric current that can be used for cigarette oil, tobacco and tobacco paste.
  • the smoking device is atomized to generate a component of the smoke;
  • the battery device is a power supply control component of the electronic cigarette, and can supply an operating voltage to the atomizer.
  • the battery device in the electronic cigarette is as described in the second embodiment.
  • the protection capacitor 2 is located at the power source and the load. On the line between 6, therefore, the protection capacitor 2 under DC makes the circuit between the power supply and the load 6 open, so that the circuit between the power supply and the ground is also open. In this way, the current in the booster circuit is instantaneously increased due to the connection of the power source and the ground, and the components in the booster circuit are burned out, thereby protecting the components of the booster circuit.

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Abstract

本公开是关于一种升压电路、电池装置和电子烟，属于电子技术领域。该升压电路包括升压模块、保护电容器、整流二极管、电压反馈模块和输出控制电阻，其中：升压模块的电源输入端与电源电性连接，升压模块的输出端与保护电容器的第一端电性连接；整流二极管的正极与保护电容器的第二端电性连接，整流二极管的负极分别与电压反馈模块的第一端、负载电性连接；电压反馈模块的第二端分别与升压模块的反馈端、输出控制电阻的第一端电性连接，输出控制电阻的第二端接地；升压模块的使能端与控制器电性连接，升压模块的接地端接地；保护电容器，用于当负载短路时，阻断电源直接对地放电。采用本公开，可以保护升压电路的元器件。

Description

升压电路、电池装置和电子烟 技术领域
本公开是关于电子技术领域，尤其是关于一种升压电路、电池装置和电子烟。
背景技术
电子烟是一种模仿香烟的电子产品，一般由雾化器和电池装置组成。其中，雾化器作为电子烟的雾化组件，通电可以产生烟雾；电池装置作为电子烟的供电控制组件，向雾化器提供工作电压。
电子烟的电池装置中通常设置有升压电路，升压电路主要包括升压模块和二极管，其中，电池装置中的电池与升压模块、二极管以及电池装置中的负载相串联。
在实现本公开的过程中，发明人发现至少存在以下问题：
电池装置在实际生产装配过程中，经常会出现负载对地短路的情况，导致电池与升压模块、二极管以及大地相串联，而整个升压电路中电阻又比较小，从而造成升压电路中电流瞬间增大，烧坏升压电路中的元器件。
实用新型内容
为了克服相关技术中存在的电池装置在实际生产装配过程中，当出现负载对地短路时，造成升压电路中电流瞬间增大，烧坏升压电路中的元器件的问题，本公开提供了一种升压电路、电池装置和电子烟。所述技术方案如下：
根据本公开实施例的第一方面，提供一种升压电路，所述升压电路包括升压模块、保护电容器、整流二极管、电压反馈模块和输出控制电阻，其中：
所述升压模块的电源输入端与电源电性连接，所述升压模块的输出端与保护电容器的第一端电性连接，所述保护电容器的第二端接地；
所述整流二极管的正极与所述保护电容器的第二端电性连接，所述整流二极管的负极分别与所述电压反馈模块的第一端、负载电性连接，其中，所述整 流二极管的导通方向为其正极指向其负极的方向；
所述电压反馈模块的第二端分别与所述升压模块的反馈端、所述输出控制电阻的第一端电性连接，所述输出控制电阻的第二端接地；
所述升压模块的使能端与控制器电性连接，所述升压模块的接地端接地；
所述保护电容器，用于当所述负载短路时，阻断所述电源直接对地放电。
可选的，所述升压电路还包括接地二极管；
所述接地二极管的负极与所述保护电容器的第二端电性连接，所述接地二极管的正极接地，其中，所述接地二极管的导通方向为其正极指向其负极的方向。
可选的，所述升压模块包括电感和升压转换器；
所述电感的第一端、所述升压转换器的电源输入端均与所述电源电性连接，所述电感的第二端、所述升压转换器的输出端均与所述保护电容器的第一端电性连接；
所述升压转换器的反馈端分别与所述电压反馈模块的第二端、所述所述输出控制电阻第一端电性连接；
所述升压转换器的使能端与所述控制器电性连接，所述升压转换器的接地端接地。
可选的，所述升压电路还包括电源滤波电容器；
所述电源滤波电容器的第一端与所述升压转换器的电源输入端电性连接，所述电源滤波电容器的第二端接地。
可选的，所述升压电路还包括输出滤波电容器；
所述输出滤波电容器的第一端与所述负载电性连接，所述输出滤波电容器的第二端接地。
可选的，所述电压反馈模块包括反馈电阻和前馈电容器；
所述反馈电阻的第一端、所述前馈电容器的第一端均与所述整流二极管的负极电性连接，所述反馈电阻的第二端、所述前馈电容器的第二端均与所述升压模块的反馈端、所述输出控制电阻的第一端电性连接。
根据本公开实施例的第二方面，提供一种电池装置，所述电池装置包括电池、控制器、负载和第一方面所述的升压电路，其中：
所述电池与所述升压电路中升压模块的电源输入端电性连接；
所述控制器与所述升压模块的使能端电性连接；
所述负载与所述升压电路中整流二极管的负极电性连接。
根据本公开实施例的第三方面，提供一种电子烟，所述电子烟包括雾化器和第二方面所述的电池装置。
本公开的实施例提供的技术方案可以包括以下有益效果：
本公开实施例中，该升压电路中，升压模块与整流二极管之间设置有保护电容器，利用电容器通交流隔直流的特性。电池装置在实际生产装配过程中，即使出现负载对地短路的情况，由于电源提供的是直流电，保护电容器位于电源与负载之间的线路上，因此，在直流下保护电容器使电源与负载之间的电路为断路，使电源与地之间的电路也为断路。这样，避免了因电源与地的接通而造成升压电路中电流瞬间增大，烧坏升压电路中的元器件的情况，从而保护了升压电路的元器件。
应当理解的是，以上的一般描述和后文的细节描述仅是示例性和解释性的，并不能限制本公开。
附图说明
此处的附图被并入说明书中并构成本说明书的一部分，示出了符合本公开的实施例，并与说明书一起用于解释本公开的原理。在附图中：
图1是根据一示例性实施例示出的一种升压电路的结构示意图；
图2是根据一示例性实施例示出的一种升压电路的结构示意图；
图3是根据一示例性实施例示出的一种升压电路的结构示意图；
图4是根据一示例性实施例示出的一种升压电路的结构示意图；
图5是根据一示例性实施例示出的一种升压电路的结构示意图；
图6是根据一示例性实施例示出的一种升压电路的结构示意图。
图例说明
1、升压模块                    2、保护电容器
3、整流二极管                  4、电压反馈模块
5、输出控制电阻                6、负载
7、控制器                      8、电池
9、电源滤波电容器              10、输出滤波电容器
11、接地二极管                 101、电感
102、升压转换器                401、反馈电阻
402、前馈电容器
通过上述附图，已示出本公开明确的实施例，后文中将有更详细的描述。这些附图和文字描述并不是为了通过任何方式限制本公开构思的范围，而是通过参考特定实施例为本领域技术人员说明本公开的概念。
具体实施方式
这里将详细地对示例性实施例进行说明，其示例表示在附图中。下面的描述涉及附图时，除非另有表示，不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本公开相一致的所有实施方式。相反，它们仅是与如所附权利要求书中所详述的、本公开的一些方面相一致的装置和方法的例子。
实施例一
本公开一示例性实施例提供了一种升压电路，如图1所示，该升压电路包括升压模块1、保护电容器2、整流二极管3、电压反馈模块4和输出控制电阻5，其中：升压模块1的电源输入端与电源电性连接，升压模块1的输出端与保护电容器2的第一端电性连接，保护电容器2的第二端接地；整流二极管3的正极与保护电容器2的第二端电性连接，整流二极管3的负极分别与电压反馈模块4的第一端、负载6电性连接，其中，整流二极管3的导通方向为其正极指向其负极的方向；电压反馈模块4的第二端分别与升压模块1的反馈端、输出控制电阻5的第一端电性连接，输出控制电阻5的第二端接地；升压模块1的使能端与控制器7电性连接，升压模块1的接地端接地；保护电容器2，用于当负载6短路时，阻断电源直接对地放电。
其中，该升压电路应用于电子烟的电池装置中，为OLED(Organic Light-Emitting Diode，有机发光二极管)屏供电，也可以为MOS(Metal-Oxide-Semiconductor，金属-氧化物-半导体)管驱动电路供电。
上述电源是一种用于给升压模块1提供电压的供电部件，可以是电池，如锂电池、镍镉电池、镍氢电池等，本实施例中对此不作限定，为方便介绍，可以称之为电池。
在实施例中，如图2所示，升压模块1包括电感101和升压转换器102，电感101作为储能元件，可以向负载6放电。电感101的第一端以及升压转换器102的电源输入端均与电池8电性连接，电感101的第二端以及升压转换器102的输出端均与保护电容器2的第一端电性连接。
其中，本实施例中的升压转换器102可以选用型号为TPS61040的高频低功耗的升压转换器，其开关频率可以达到一兆赫兹，可以输出1.8伏特到28伏特之间的电压。如图2所示，升压转换器102中各引脚中：SW(switch，开关)为输出端，当SW引脚打开时，电感101蓄能，当SW引脚关闭时，电感101向外输出电压；VSS(voltage series，公共接地端电压)为接地端；FB(feedback，反馈)为反馈端，用于连接电压反馈模块4；EN(energy，使能端)为使能端，用于连接控制器7，用于启动升压模块1工作；VIN(voltage in，输入端电压)为电源输入端，用于连接电源。
在上述升压电路中，电感101与整流二极管3之间设置有保护电容器2，利用电容器通交流隔直流的特性。在电池装置在实际生产装配过程中，即使出现负载对地短路的情况，由于电源提供的是直流电，保护电容器2位于电源与负载6之间的线路上，因此，在直流下保护电容器2使电源与负载6之间的电路为断路，使电源与地之间的电路也为断路。这样，避免了因电源与地的接通而造成升压电路中电流瞬间增大，烧坏升压电路中的元器件的情况，从而保护了升压电路的元器件。
在本实施例中，升压转换器102的使能端EN引脚与电池装置中的控制器7电性连接，控制器7用于控制升压转换器102的工作，升压转换器102的接地端接地。升压电路升压的基本原理可以如下：
当控制器7向EN引脚输出使能信号之后，升压转换器102开始工作，升压转换器102与电感101发生振荡作用。当SW引脚打开时，电感101储能，当SW引脚关闭时，电感101电。这样，间断的方波电压不属于直流电，从而，可以通过保护电容器2。方波电压经过整流二极管3整流之后，电压比较平稳，进而向负载6提供较为平稳的电压。该升压电路输送给负载6的电压为电池8的电压与电感101的自感电压(整流二极管3的正向压降忽略不计的情况下)之和。其中，电池8的电压通常在1.5伏特到4.2伏特之间，而电感101的自感电压最高可以达到28伏特，因此，升压电路可以在输入几伏特电压下，输出几十 伏特电压供给负载工作。
其中，方波电压在经过保护电容器2流向负载6的过程中，为了防止保护电容器2对地放电，相应的结构可以是，该升压电路中还包括接地二极管11，如图3所示，接地二极管11的负极与保护电容器2的第二端电性连接，接地二极管11的正极接地，其中，接地二极管11的导通方向为其正极指向其负极的方向。
基于上述所述，上述升压电路中在正常工作时，升压模块1周期性向负载6输送脉冲电压，供负载6工作。
上述升压模块1周期性输出脉冲电压时，在正常工作中并不能稳压，且输出的电压受升压转换器102的工作频率以及电感101的大小影响，为达到输出电压比较稳定的目的，需要在升压电路中设置电压反馈模块4。如图4所示，电压反馈模块4包括反馈电阻401和前馈电容器402，其中，反馈电阻401的第一端、前馈电容器402的第一端均与整流二极管3的负极电性连接，反馈电阻401的第二端、前馈电容器402的第二端均与升压模块1的反馈端、输出控制电阻5的第一端电性连接。
其中，升压模块1输出的电压与分压电阻的关系可以是：
Vout＝(1+R1/R2)Vref
式中：Vout为升压模块1输出的电压；R1为反馈电阻401的电阻值，例如可以为470千欧姆；R2为输出控制电阻5的电阻值，例如可以为56千欧姆；Vref为升压转换器102中电压基准值，通常为1.233伏特。
可选的，电池8向升压转换器102输出电压的过程中会受到外界(如周围磁场等)的干扰，通常在电源的输出端设置用于滤波的电容器，相应的结构可以是，该升压电路还包括电源滤波电容器9，如图5所示，电源滤波电容器9的第一端与升压转换器102的输入端电性连接，电源滤波电容器9的第二端接地。
可选的，该升压电路向负载6输出电压时，也会受到来自周围环境的干扰，通常，在升压电路的输出端会设置用于滤波的电容器，相应的结构可以是，该升压电路还包括输出滤波电容器10，如图6所示，输出滤波电容器10的第一端与负载6电性连接，输出滤波电容器10的第二端接地。
本公开实施例中，在上述升压电路中，升压模块1与整流二极管3之间设置有保护电容器2，利用电容器通交流隔直流的特性。电池装置在实际生产装配 过程中，即使出现负载6对地短路的情况，由于电源提供的是直流电，保护电容器2位于电源与负载6之间的线路上，因此，在直流下保护电容器2使电源与负载6之间的电路为断路，使电源与地之间的电路也为断路。这样，避免了因电源与地的接通而造成升压电路中电流瞬间增大，烧坏升压电路中的元器件的情况，从而保护了升压电路的元器件。
实施例二
本公开再一示例性实施例示出了一种电池装置，该电池装置包括电池8、控制器7、负载6和实施例一所述的升压电路，其中：电池8与升压电路中升压模块1的输入端电性连接；控制器7与升压模块1的使能端电性连接；负载6与升压电路中整流二极管3的第二端电性连接。
在本公开实施例中，如实施例一所述，上述电池装置在实际生产装配过程中，即使出现负载对地短路的情况，由于电源提供的是直流电，保护电容器2位于电源与负载6之间的线路上，因此，在直流下保护电容器2使电源与负载6之间的电路为断路，使电源与地之间的电路也为断路。这样，避免了因电源与地的接通而造成升压电路中电流瞬间增大，烧坏升压电路中的元器件的情况，从而保护了升压电路的元器件。
实施例三
本公开再一示例性实施例示出了一种电子烟，该电子烟包括雾化器和实施例二所述的电池装置，其中，雾化器是一种通电可以对烟油、烟丝和烟膏等等发烟物质进行雾化，从而产生烟雾的部件；电池装置是电子烟的供电控制组件，可以向雾化器提供工作电压。
本公开实施例中，该电子烟中的电池装置如实施例二所述，在实际生产装配过程中，即使出现负载对地短路的情况，由于电源提供的是直流电，保护电容器2位于电源与负载6之间的线路上，因此，在直流下保护电容器2使电源与负载6之间的电路为断路，使电源与地之间的电路也为断路。这样，避免了因电源与地的接通而造成升压电路中电流瞬间增大，烧坏升压电路中的元器件的情况，从而保护了升压电路的元器件。
本领域技术人员在考虑说明书及实践这里公开的公开后，将容易想到本公开的其它实施方案。本申请旨在涵盖本公开的任何变型、用途或者适应性变化，这些变型、用途或者适应性变化遵循本公开的一般性原理并包括本公开未公开的本技术领域中的公知常识或惯用技术手段。说明书和实施例仅被视为示例性的，本公开的真正范围和精神由下面的权利要求指出。
应当理解的是，本公开并不局限于上面已经描述并在附图中示出的精确结构，并且可以在不脱离其范围进行各种修改和改变。本公开的范围仅由所附的权利要求来限制。

Claims (8)

  1. 一种升压电路，其特征在于，所述升压电路包括升压模块、保护电容器、整流二极管、电压反馈模块和输出控制电阻，其中：
    所述升压模块的电源输入端与电源电性连接，所述升压模块的输出端与保护电容器的第一端电性连接，所述保护电容器的第二端接地；
    所述整流二极管的正极与所述保护电容器的第二端电性连接，所述整流二极管的负极分别与所述电压反馈模块的第一端、负载电性连接，其中，所述整流二极管的导通方向为其正极指向其负极的方向；
    所述电压反馈模块的第二端分别与所述升压模块的反馈端、所述输出控制电阻的第一端电性连接，所述输出控制电阻的第二端接地；
    所述升压模块的使能端与控制器电性连接，所述升压模块的接地端接地；
    所述保护电容器，用于当所述负载短路时，阻断所述电源直接对地放电。
  2. 根据权利要求1所述的升压电路，其特征在于，所述升压电路还包括接地二极管；
    所述接地二极管的负极与所述保护电容器的第二端电性连接，所述接地二极管的正极接地，其中，所述接地二极管的导通方向为其正极指向其负极的方向。
  3. 根据权利要求1所述的升压电路，其特征在于，所述升压模块包括电感和升压转换器；
    所述电感的第一端、所述升压转换器的电源输入端均与所述电源电性连接，所述电感的第二端、所述升压转换器的输出端均与所述保护电容器的第一端电性连接；
    所述升压转换器的反馈端分别与所述电压反馈模块的第二端、所述输出控制电阻第一端电性连接；
    所述升压转换器的使能端与所述控制器电性连接，所述升压转换器的接地端接地。
  4. 根据权利要求3所述的升压电路，其特征在于，所述升压电路还包括电源滤波电容器；
    所述电源滤波电容器的第一端与所述升压转换器的电源输入端电性连接， 所述电源滤波电容器的第二端接地。
  5. 根据权利要求1所述的升压电路，其特征在于，所述升压电路还包括输出滤波电容器；
    所述输出滤波电容器的第一端与所述负载电性连接，所述输出滤波电容器的第二端接地。
  6. 根据权利要求1-5任一项所述的升压电路，其特征在于，所述电压反馈模块包括反馈电阻和前馈电容器；
    所述反馈电阻的第一端、所述前馈电容器的第一端均与所述整流二极管的负极电性连接，所述反馈电阻的第二端、所述前馈电容器的第二端均与所述升压模块的反馈端、所述输出控制电阻的第一端电性连接。
  7. 一种电池装置，其特征在于，所述电池装置包括电池、控制器、负载和权利要求1-6任一项所述的升压电路，其中：
    所述电池与所述升压电路中升压模块的电源输入端电性连接；
    所述控制器与所述升压模块的使能端电性连接；
    所述负载与所述升压电路中整流二极管的负极电性连接。
  8. 一种电子烟，其特征在于，所述电子烟包括雾化器和权利要求7所述的电池装置。
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