WO2019134457A1 - 一种自动检测烟支的装置及方法 - Google Patents

一种自动检测烟支的装置及方法 Download PDF

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Publication number
WO2019134457A1
WO2019134457A1 PCT/CN2018/116518 CN2018116518W WO2019134457A1 WO 2019134457 A1 WO2019134457 A1 WO 2019134457A1 CN 2018116518 W CN2018116518 W CN 2018116518W WO 2019134457 A1 WO2019134457 A1 WO 2019134457A1
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WO
WIPO (PCT)
Prior art keywords
controller
signal
heating wire
heating
sampling
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Application number
PCT/CN2018/116518
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English (en)
French (fr)
Inventor
刘德文
Original Assignee
吉士福电子科技(东莞)有限公司
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Publication of WO2019134457A1 publication Critical patent/WO2019134457A1/zh

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Classifications

    • 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
    • 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
    • A24F40/60—Devices with integrated user interfaces
    • 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
    • A24F40/20—Devices using solid inhalable precursors

Definitions

  • the present invention relates to the technical field of electronic cigarettes, and more particularly to an apparatus and method for automatically detecting cigarettes.
  • e-cigarette As a fashionable technology product, e-cigarette has gradually become a favorite product of the public.
  • e-cigarettes There are two kinds of e-cigarettes commonly used at present. The first one is e-cigarette that does not need cigarettes at all, and the second is used to heat cigarettes.
  • Electronic cigarettes that can be used by users without ignition.
  • the cigarette inserted into the heating sheet is ignited by heating the heating wire in the electronic cigarette to achieve the purpose of smoking.
  • the heating wire is continuously burned, or the cigarette is inserted into the cigarette but the heating sheet is not inserted and the heating wire is burnt. Both phenomena will reduce the service life of the electronic cigarette and the waste of energy. It will also burn the user due to accidental touch during the heating process of the heating wire, and the safety is low.
  • the technical problem to be solved by the present invention is to provide an apparatus and method for automatically detecting cigarettes in view of the above-mentioned drawbacks of the prior art.
  • the technical solution adopted by the present invention to solve the technical problem thereof is: constructing a device for automatically detecting cigarettes, comprising:
  • a cigarette holder for placing a cigarette, one end of the cigarette holder is provided with a first opening for inserting the cigarette branch, and the other end of the cigarette holder is provided with a second opening for inserting the heat generating sheet;
  • a heating wire for heating is attached to the heating sheet
  • a sampling circuit electrically connected to the heating sheet for monitoring the resistance of the heating wire in real time during heating of the heating wire to generate a sampling signal
  • a controller coupled to the sampling circuit for receiving and generating a control signal according to a sampling signal transmitted by the sampling circuit, the controller including a memory, the memory being built in the controller, and the memory Storing a mapping table of resistance and time associated with the heating wire;
  • the cigarette holder comprises:
  • the first opening is disposed at one end of the accommodating cavity, and the second opening is disposed at the other end of the accommodating cavity; the first opening is for the cigarette branch to be inserted into the accommodating cavity, The second opening is for inserting the heat generating piece into the receiving cavity;
  • the accommodating cavity is adapted to different shapes of cigarettes.
  • the method further comprises:
  • An amplifying circuit the amplifying circuit is connected in series between the sampling circuit and the signal monitoring end of the controller, and is configured to perform amplification processing on the sampling signal and then send the signal to the controller;
  • the sampling circuit includes a sampling resistor, and the amplifying circuit includes a first input end, a second input end, and an output end;
  • a first end of the sampling resistor is connected to a positive end of the heating element, and a serial connection end of the first end of the sampling resistor and a positive end of the heating element is connected to a first input end of the amplifying circuit.
  • a second end of the sampling resistor is coupled to a second input of the amplifying circuit, and an output of the amplifying circuit is coupled to a signal monitoring terminal of the controller.
  • the shutdown circuit includes a control MOS transistor, a gate of the control MOS transistor is connected to a power control end of the controller, and a source of the control MOS transistor is connected to a second end of the sampling resistor
  • the drain of the control MOS transistor is connected to a power supply pin of the controller and is connected to a supply voltage.
  • the method further includes: a battery;
  • a positive output terminal of the battery is coupled to a drain of the control MOS transistor and a power supply pin of the controller, respectively.
  • the method further comprises:
  • the battery management module being connected in parallel between the positive output terminal and the negative output terminal of the battery for managing and controlling charging of the battery.
  • the method further comprises:
  • vibration motor and a motor drive circuit connected to the vibration motor
  • a control end of the motor driving circuit is connected to a vibration enabling end of the controller, configured to receive and generate a driving signal according to a vibration signal output by the vibration enabling end of the controller, and send the driving signal To the vibration motor;
  • the vibration motor is configured to receive and generate a shock based on the drive signal.
  • the signal end of the LED indicator is connected to the signal pin of the controller.
  • the PCB control board is further provided with a button switch connected to the controller, and the button switch is used for controlling on/off of the device for automatically detecting the cigarette.
  • the invention also provides a method for automatically detecting cigarettes, which is applied to the above device for automatically detecting cigarettes, comprising the following steps:
  • the sampling circuit monitors the resistance change of the heating wire and generates a corresponding sampling signal, and sends the sampling signal to the signal monitoring end of the controller;
  • the controller receives and processes the sampling signal to obtain a measured resistance value of the heating wire.
  • the controller searches the resistance value and time correspondence mapping table associated with the heating wire stored in the memory according to the measured resistance value, and obtains a matching time corresponding to the measured resistance value;
  • step S14 the controller determines whether the matching time is less than the first preset time, and if so, step S15 is performed; if not, step S16 is performed;
  • the controller determines that there is no cigarette on the heating wire, and outputs a control signal to the shutdown circuit to control the heating wire to be disconnected, and stops heating the heating wire;
  • the controller determines whether the matching time is greater than the first preset time and less than a second preset time. If yes, the controller determines that the heating wire has a cigarette.
  • the apparatus for automatically detecting cigarettes of the present invention has the following advantageous effects: the apparatus for automatically detecting cigarettes of the present invention monitors the actual resistance change of the heating wire in real time, and based on the resistance associated with the heating wire stored in the memory The value-time correspondence table is obtained, and the actual heating time of the heating wire is obtained, and whether the cigarette is inserted into the heating piece is determined according to the actual heating time of the heating wire, and then the opening and closing of the heating piece is controlled according to the determination result, thereby effectively preventing heat generation.
  • the problem of air-burning in the film has achieved the goal of energy saving while achieving the safety of electronic cigarettes.
  • FIG. 1 is a schematic structural diagram of an apparatus for automatically detecting cigarettes according to an embodiment of the present invention
  • FIG. 2 is a schematic block diagram of an apparatus for automatically detecting cigarettes according to an embodiment of the present invention
  • FIG. 3 is a flow chart of a method for automatically detecting cigarettes according to an embodiment of the present invention.
  • the present invention constructs an apparatus for automatically detecting cigarettes in order to solve the technical problems thereof.
  • the apparatus comprises: a cigarette holder 12, a heat generating sheet 1, a sampling circuit 2, a controller 4, and a shutdown circuit 3.
  • the cigarette holder 12 is used to place the cigarette 100 and the heat-generating sheet 1 is inserted therein.
  • the heating element 101 is attached with a heating wire 101 for heating;
  • the sampling circuit 2 is electrically connected to the heating element 1 for monitoring the resistance change of the heating wire 101 in real time during heating of the heating wire 101 to generate a sampling signal, and
  • the sampling signal is sent to the signal monitoring terminal of the controller 4; the controller 4 receives and generates a control signal according to the sampling signal sent by the sampling circuit 2.
  • the controller 4 includes a memory, which is built in the controller 4, and stores therein a resistance and time correspondence map associated with the heating wire 101; the shutdown circuit 3 and the controller 4 and the sampling circuit 2, respectively
  • the connection is used to receive and control the on and off of the heating wire 101 according to the control signal during the heating of the heating sheet 1, to control the heating wire 101 to continue heating or to stop heating.
  • one end of the cigarette holder 12 is provided with a first opening 121 for inserting the cigarette holder 100, and the other end of the cigarette holder 12 is provided with a second opening 122 for inserting the heat generating sheet.
  • the cigarette holder 12 further includes a receiving cavity for placing the cigarette 100 and the heat generating sheet 1, wherein the first opening 121 is disposed at one end of the receiving cavity, and the second opening 122 is disposed at the other end of the receiving cavity;
  • the opening 121 is for the cigarette branch 100 to be inserted into the accommodating cavity, and the second opening 122 is for inserting the heat generating sheet 1 into the accommodating cavity.
  • the accommodating cavity of the present embodiment can be adapted to different shapes of cigarettes.
  • the accommodating space provided in the cigarette holder 12 can be determined according to the shape of the cigarette 100, which is not specifically limited in the present invention.
  • the shape of the first opening 121 is based on the insertion of the cigarette 100 into the receiving cavity, which is not specifically required by the present invention.
  • the shape of the second opening 122 is based on the fact that the heat generating sheet can be inserted into the accommodating cavity, and the present invention does not specifically require it.
  • sampling circuit 2, the controller 4, and the shutdown circuit 3 are all disposed on a first surface of the PCB control board 13, and one end of the PCB control board 13 is fixedly connected to the heat generating sheet 1.
  • the other end of the PCB control board 13 is further provided with a charging interface 14 for the device for automatically detecting the cigarette to be connected with an external charging power source to realize charging of the device for automatically detecting the cigarette.
  • the charging interface 14 can be used for direct charging or for charging, and can be applied to different types of charging power sources.
  • the heating wire 101 on the heating sheet 1 is connected in series by a sampling circuit 2 on the heating sheet 1.
  • the sampling circuit 2 monitors the actual resistance change of the heating wire 101 in real time, and converts the monitored result into a corresponding sampling signal, which is used to determine the resistance value of the heating wire 101.
  • the controller 4 is sent to the controller 4 by converting the real-time resistance change of the heating wire 101 during heating, and the controller 4 performs corresponding operation processing after receiving the sampling signal, and converts it into a corresponding measured resistance value (this The measured resistance value is the current actual resistance value of the heating wire), and then the matching time corresponding to the measured resistance value is searched from the resistance value and time correspondence map stored in the memory according to the measured resistance value, and then the matching time is obtained.
  • the matching time is less than the first preset time, it may be determined that there is no cigarette on the heating sheet 1, and outputting a control signal to the shutdown circuit to control the heating wire 101 Disconnecting, stopping heating the heating wire 101; if the matching time is greater than the first preset time and less than the second preset time, it can be determined that there is a cigarette on the heating wire 101, and the controller 4 does not adjust the heating wire 101 at this time, In order to keep heating the heating wire 101.
  • the heating wire 101 can be effectively burned, the service life of the heating wire 101 can be prolonged, and the user can be prevented from being accidentally touched, the safety of the electronic cigarette can be improved, and the waste of energy can be effectively avoided.
  • the resistance value and time correspondence mapping table stored in the memory in this embodiment is associated with the heating wire 101 and uniquely corresponding, that is, the resistance value and time correspondence mapping table reflects the heat generation.
  • the correspondence between the resistance of the wire 101 and time may be corresponding to the resistance value and time test when the heating wire 101 is factory-produced, and the obtained data is processed to form the resistance value and the time.
  • the correspondence map is stored in the memory.
  • the correspondence of resistance to time can also be made to be stored in a memory as a relationship curve.
  • the apparatus for automatically detecting cigarettes in the embodiment of the present invention further includes:
  • the amplifying circuit 5 is connected in series between the sampling circuit 2 and the signal monitoring end of the controller 4 for amplifying the sampled signal and transmitting it to the controller 4.
  • the sampling circuit 2 includes a sampling resistor, and the amplifying circuit 5 includes a first input terminal, a second input terminal, and an output terminal.
  • the first end of the sampling resistor is connected to the positive end of the heating element 1, and the series connection end of the first end of the sampling resistor and the positive end of the heating element 1 is connected to the first input end of the amplifying circuit 5, and the second end of the sampling resistor is amplified
  • the second input of the circuit 5 is connected, and the output of the amplifying circuit 5 is connected to the signal monitoring terminal of the controller 4.
  • the sampling resistor is mainly used for real-time monitoring and sampling of the actual resistance value of the heating wire 101. Therefore, the selected sampling resistor has a small resistance value, generally much smaller than the resistance of the heating wire 101. The value, in turn, can achieve both signal monitoring and sampling purposes without adversely affecting the circuit.
  • an amplifying circuit 5 is added between the signal monitoring end of the controller 4 and the sampling resistor, and the sampling is performed by the amplifying circuit 5. After the signal is amplified and processed, it is sent to the signal monitoring terminal of the controller 4, so that the sampling signal can be stably monitored by the controller 4, which improves the stability and accuracy of the signal transmission.
  • the amplifying circuit 5 may include an operational amplifier which is a high precision operational amplifier.
  • the shutdown circuit 3 includes a control MOS transistor, and the gate of the control MOS transistor is connected to the power control terminal of the controller 4, and the source of the control MOS transistor is connected to the second end of the sampling resistor, and the MOS transistor is controlled.
  • the drain is connected to the power supply pin of the controller 4 and is connected to the supply voltage.
  • the specific control principle is as follows: the controller 4 outputs a PWM power adjustment signal to the control end of the control MOS tube to control the turning on or off of the MOS tube, thereby achieving the purpose of controlling the heating or stopping heating of the heating wire 101, and finally achieving The effective protection of the heating wire 101 avoids the burning of the heating wire 101, which wastes energy and affects the service life of the electronic cigarette.
  • the apparatus for automatically detecting cigarettes in the embodiment of the present invention may further include a battery 7 disposed on the second surface of the PCB control board 13.
  • the battery 7 is mainly used to supply power to components disposed on the first side of the PCB control board 13.
  • the positive output terminals of the battery 7 are respectively connected to the drain of the control MOS transistor and the power supply pin of the controller 4.
  • the on or off of the control MOS tube controls the on and off of the heating wire 101.
  • the power supply voltage provided by the battery 7 can be controlled by the drain and the source of the MOS transistor, and then transmitted to the positive end of the heat generating sheet 1 via the sampling resistor, and the heat generating sheet 1 is heated.
  • the heating wire 101 is heated; when the control MOS transistor is turned off, at this time, the drain and the source of the control MOS transistor are extremely disconnected, the power supply voltage cannot pass, and the heating sheet 1 stops heating.
  • the apparatus for automatically detecting cigarettes in the embodiment of the present invention may further include a battery management module 8 connected in parallel between the positive output end and the negative output end of the battery 7 for charging the battery 7. Management and control.
  • the battery management module 8 may include a charge management IC and a battery protection IC that can monitor and control the power and charge of the battery 7 in real time. For example, during the charging process, the charging management IC monitors the charging state of the battery 7 in real time. When the battery 7 is full, the charging management IC outputs a control signal to cut off the connection between the battery 7 and the external power source, so that the battery 7 automatically turns off charging, avoiding the battery 7 Overcharge and damage the battery 7.
  • a battery protection IC can be used to manage and protect the battery 7.
  • the device for automatically detecting the cigarette branch may further include: a vibration motor 11 and a motor drive circuit 10 connected to the vibration motor 11.
  • the control end of the motor drive circuit 10 is connected to the vibration enable end of the controller 4, and is configured to receive and generate a drive signal according to the vibration signal outputted by the vibration enable end of the controller 4, and send the drive signal to the vibration motor. 11; the vibration motor 11 receives and generates vibration according to the drive signal.
  • the controller 4 outputs a vibration signal to the motor driving circuit 10, and the motor driving circuit 10 is turned on and generates a driving signal to drive the vibration motor 11 to generate vibration, prompting the user. You can start smoking.
  • the motor driving circuit 10 of the embodiment of the present invention may include a driving MOS tube, and the driving state of the vibration motor 11 can be controlled by the driving MOS tube.
  • the device for automatically detecting the cigarette branch may further include: at least one LED indicator light 6. Wherein at least the LED indicator 6 is disposed on the first side of the PCB control board 13, the LED indicator 6 for indicating the power information/heating time information; and the signal end of the LED indicator 6 is respectively corresponding to the signal of the controller 4. The pin is connected. When multiple LED indicators 6 are used, the signal terminals of each LED indicator 6 are respectively connected to the signal pins corresponding to the controller 4.
  • the LED indicator 6 of the embodiment may include four LED indicators 6 that may indicate the power signal of the battery or the heating time information of the heating wire 101.
  • the four LED lights automatically perform the lighting action according to the indication signal output by the controller 4, for example, when the heating time reaches half of the preset heating time, the two LED lights are illuminated; when heating When the time reaches the preset heating time, the four LED lights are all on.
  • the power indicator when the power indicator signal is received, the corresponding lighting indicator is performed according to the power indicator signal. For example, if the battery remaining 50%, 2 LED lights are on, and when the battery remaining 75%, 3 LED lights are on. When the power is still 100%, the 4 LED lights are all on.
  • the heating time information indicates that the heating wire 101 is executed during heating, and the electric quantity indication is performed when the heating wire 101 stops heating.
  • the apparatus for automatically detecting cigarettes in the embodiment of the present invention may further include: a button switch connected to the controller 4.
  • the button switch can be disposed on the first surface of the PCB control board 13 , and the button switch 9 can be used to trigger the opening of the device for automatically detecting the cigarette, the power indicator, and the like.
  • the LED light displays the power; during long press (for example, long press for 3 seconds), the heating wire 101 starts to heat; if the heating wire 101 is heated, if it wants to manually control the stop The heating wire 101 is heated, and can be pressed long (for example, for 3 seconds), and the heating wire 101 stops heating.
  • the apparatus for automatically detecting cigarettes further includes a housing provided with a cavity for placing a device for automatically detecting the cigarette, the cavity being provided at one end to be fitted with the first opening 121.
  • An opening, the other end of the cavity is provided with an opening in which the charging interface is disposed.
  • the device for automatically detecting cigarettes of the present invention monitors the actual resistance change of the heating wire in real time through a sampling circuit connected in series with the heating piece, and obtains a mapping table of the resistance value and time correspondence relationship with the heating wire stored in the memory.
  • the actual heating time of the heating wire is automatically determined according to the actual heating time of the heating wire, and whether the cigarette is inserted into the heating piece, and then the opening and closing of the heating piece is controlled according to the judgment result, thereby effectively avoiding the problem of air burning of the heating piece. While achieving the safety of electronic cigarettes, it also achieves the purpose of energy saving, prolongs the service life of electronic cigarettes, and avoids accidental injury to users by electronic cigarettes.
  • the invention also provides a method for automatically detecting cigarettes, which is implemented by the above-mentioned device for automatically detecting cigarettes, as shown in FIG. 3, and specifically includes the following steps:
  • the sampling circuit 2 monitors the resistance change of the heating wire and generates a corresponding sampling signal, and simultaneously sends the sampling signal to the signal monitoring end of the controller 4.
  • the controller 4 receives and processes the sampling signal to obtain the measured resistance value of the heating wire 101.
  • the controller 4 searches the resistance value and time correspondence map associated with the heating wire 101 stored in the memory according to the measured resistance value, and obtains a matching time corresponding to the measured resistance value.
  • step S14 The controller 4 determines whether the matching time is less than the first preset time. If yes, step S15 is performed; if not, step S16 is performed.
  • the controller 4 determines that there is no cigarette 100 on the heating wire, and outputs a control signal to the shutdown circuit 3 to control the heating wire 101 to be disconnected, and stops heating the heating wire 101.
  • the controller 4 determines whether the matching time is greater than the first preset time and less than the second preset time. If yes, the controller 4 determines that the heating wire 101 has the cigarette 100.
  • the first preset time and the second preset time in the embodiment of the present invention may be determined according to an actual test time.
  • the resistance-time correspondence map is obtained by repeatedly testing the heating wire in the electronic cigarette during the production of the electronic cigarette, and processing according to the test data.
  • the actual temperature rise time of the heating wire can be obtained according to the resistance value and time correspondence map associated with the heating wire stored in the memory, and according to the actual heating time of the heating wire Automatically determine whether the cigarette has a heat-insulating sheet inserted, and then control the opening and closing of the heat-generating sheet according to the judgment result, thereby effectively avoiding the problem of air-burning of the heat-generating sheet, and at the same time achieving the purpose of improving the safety of the electronic cigarette, the energy-saving purpose is extended.
  • the service life of the electronic cigarette is to avoid accidental injury to the user by burning the electronic cigarette.

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  • Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Manufacturing Of Cigar And Cigarette Tobacco (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

一种自动检测烟支（100）的装置及方法，可以自动检测烟支（100）是否***发热片（1）中以控制发热片（1）的通断，节能、安全。装置包括用于放置烟支（100）的烟托（12），烟托（12）的一端设有用于供烟支（100）***的第一开口（121），另一端设有供发热片（1）***的第二开口（122）；发热片（1）上贴设有发热丝（101）；与发热片（1）电连接、用于实时监测发热丝（101）的阻值以产生采样信号的采样电路（2）；与采样电路（2）连接、用于接收并根据采样信号产生控制信号的控制器（4），控制器（4）包括存储器，且存储器内存储有与发热丝（101）关联的阻值与时间对应关系映射表；分别与采样电路（2）和控制器（4）连接、用于根据控制信号控制发热丝（101）通断的关断电路（3）。

Description

一种自动检测烟支的装置及方法 技术领域
本发明涉及电子烟的技术领域，更具体地说，涉及一种自动检测烟支的装置及方法。
 背景技术
随着技术及生活水平的不断提高，人们对于科技产品的需求越来越多，且使用越来越普遍。
电子烟作为一种时尚的科技产品，逐渐成为大众热爱的产品，目前常见的电子烟有两种，第一种是完全不需要烟支的电子烟，第二种则是用于给烟支加热，无需点火即可供用户吸食的电子烟。对于第二种电子烟，其主要是通过给电子烟中的发热丝加热使***发热片中的烟支被点燃以达到吸烟的目的。但是这种方式，常常会由于烟支未***烟托中时，出现误启动而使发热丝持续空烧，或者烟支***烟托但未***发热片而出现发热丝空烧等现象，对于上述两种现象均会降低电子烟的使用寿命以及能源的浪费，还会在发热丝空烧过程中因误碰触而烧伤用户，安全性低。
 技术问题
本发明要解决的技术问题在于，针对现有技术的上述缺陷，提供一种自动检测烟支的装置及方法。
 技术解决方案
本发明解决其技术问题所采用的技术方案是：构造一种自动检测烟支的装置，包括：
用于放置烟支的烟托，所述烟托的一端设有用于供烟支***的第一开口，所述烟托的另一端设有供发热片***的第二开口；
所述发热片上贴设有用于加热的发热丝；
与所述发热片电连接、用于在所述发热丝加热过程中实时监测所述发热丝的阻值以产生采样信号的采样电路；
与所述采样电路连接、用于接收并根据所述采样电路发送的采样信号产生控制信号的控制器，所述控制器包括存储器，所述存储器内置于所述控制器中，且所述存储器内存储有与所述发热丝关联的阻值与时间对应关系映射表；
分别与所述采样电路和所述控制器连接、用于根据所述控制信号控制所述发热丝通断的关断电路。
优选地，所述烟托包括：
容置腔，所述第一开口设置在所述容置腔的一端，所述第二开口设置在所述容置腔的另一端；所述第一开口供烟支***所述容置腔，所述第二开口供所述发热片***所述容置腔；
所述容置腔适配不同形状的烟支。
优选地，还包括：
放大电路，所述放大电路串联在所述采样电路与所述控制器的信号监测端之间，用于对所述采样信号进行放大处理后发送给所述控制器；
所述采样电路包括采样电阻，所述放大电路包括第一输入端、第二输入端和输出端；
所述采样电阻的第一端与所述发热片的正端连接，所述采样电阻的第一端与所述发热片的正端的串联连接端与所述放大电路的第一输入端连接，所述采样电阻的第二端与所述放大电路的第二输入端连接，所述放大电路的输出端与所述控制器的信号监测端连接。
优选地，所述关断电路包括控制MOS管，所述控制MOS管的栅极与所述控制器的功率控制端连接，所述控制MOS管的源极与所述采样电阻的第二端连接，所述控制MOS管的漏极与所述控制器的供电引脚连接并接入供电电压。
优选地，还包括：电池；
所述电池的正输出端分别与所述控制MOS管的漏极和所述控制器的供电引脚连接。
优选地，还包括：
电池管理模块，所述电池管理模块并联在所述电池的正输出端和负输出端之间，用于对所述电池的充电进行管理和控制。
优选地，还包括：
震动马达以及与所述震动马达连接的马达驱动电路；
所述马达驱动电路的控制端与所述控制器的震动使能端连接、用于接收并根据所述控制器的震动使能端输出的振动信号，产生驱动信号，并将所述驱动信号发送至所述震动马达；
所述震动马达用于接收并根据所述驱动信号产生震动。
优选地，还包括至少一个用于指示电量信息/加热时间信息的LED指示灯；
所述LED指示灯的信号端与所述控制器的信号引脚连接。
优选地，所述PCB控制板上还设有与所述控制器连接的按键开关，所述按键开关用于控制所述自动检测烟支的装置的开/关。
本发明还提供一种自动检测烟支的方法，应用于上述的自动检测烟支的装置，包括以下步骤：
S11、采样电路监测发热丝的阻值变化并产生相应的采样信号，同时将所述采样信号发送给控制器的信号监测端；
S12、所述控制器接收并处理所述采样信号，获得所述发热丝的实测阻值；
S13、所述控制器根据所述实测阻值在存储器中存储的与所述发热丝关联的阻值与时间对应关系映射表中查找，获得与所述实测阻值对应的匹配时间；
S14、所述控制器判断所述匹配时间是否小于第一预设时间，若是，执行步骤S15；若否，执行步骤S16；
S15、所述控制器判定所述发热丝上没有烟支，并输出控制信号至关断电路控制所述发热丝断开，停止给所述发热丝加热；
S16、所述控制器判断所述匹配时间是否大于所述第一预设时间且小于第二预设时间，若是，所述控制器判定所述发热丝上有烟支。
 有益效果
实施本发明的自动检测烟支的装置，具有以下有益效果：本发明的自动检测烟支的装置通过实时监测发热丝的实际阻值变化，并基于存储在存储器中的与该发热丝关联的阻值与时间对应关系映射表，获得该发热丝的实际升温时间，并根据该发热丝的实际升温时间判断烟支是否有***发热片，进而根据判断结果控制发热片的通断，有效地避免发热片出现空烧的问题，在达到提高电子烟安全性的同时，还达到了节能的目的。
 附图说明
下面将结合附图及实施例对本发明作进一步说明，附图中：
图1是本发明实施例提供的一种自动检测烟支的装置的结构示意图；
图2是本发明实施例提供的一种自动检测烟支的装置的原理框图；
图3是本发明实施例提供的一种自动检测烟支的方法的程序流程图。
 本发明的最佳实施方式
为了对本发明的技术特征、目的和效果有更加清楚的理解，现对照附图详细说明本发明的具体实施方式。
参阅图1和图2，本发明为解决其技术问题构造了一种自动检测烟支的装置，该装置包括：烟托12、发热片1、采样电路2、控制器4以及关断电路3。具体的，烟托12用于放置烟支100且可供发热片1***其中。该发热片1上贴设有用于加热的发热丝101；采样电路2与发热片1电连接、用于在发热丝101加热过程中实时监测发热丝101的阻值变化以产生采样信号，并将该采样信号发送至控制器4的信号监测端；控制器4接收并根据采样电路2发送的采样信号产生控制信号。控制器4包括一存储器，该存储器内置于控制器4中，且该存储器内存储有与发热丝101关联的阻值与时间对应关系映射表；关断电路3分别与控制器4和采样电路2连接、用于在发热片1加热过程中，接收并根据控制信号控制发热丝101的通断，以控制发热丝101继续加热或停止加热。
可选的，在本实施例中，烟托12的一端设有用于供烟支100***的第一开口121，烟托12的另一端设有供发热片***的第二开口122。且烟托12还包括用于放置烟支100和发热片1的容置腔，其中，第一开口121设置在容置腔的一端，第二开口122设置在容置腔的另一端；第一开口121供烟支100***容置腔，第二开口122供发热片1***容置腔。
作为选择，本实施例的容置腔可以适配不同形状的烟支，换言之，烟托12内设置的容置可以根据烟支100的形状选择确定，本发明不作具体限定。
在一些实施例中，第一开口121的形状以烟支100可***容置腔为基准，本发明不作具体要求。同样的，第二开口122的形状以发热片可***容置腔为基准，本发明不作具体要求。
可选地，采样电路2、控制器4以及关断电路3均设置在一PCB控制板13的第一面上，PCB控制板13的一端固定连接发热片1。
在本实施例中，PCB控制板13的另一端还设有充电接口14，该充电接口14可供该自动检测烟支的装置与外部充电电源连接，以实现对自动检测烟支的装置的充电，其中该充电接口14可用于直充，也可以用于座充，可适用于不同类型的充电电源。
在具体使用过程中，若电子烟被误启动而对发热丝101进行加热或者发热丝101在正常加热过程中，通过在发热片1上串联一采样电路2，在发热片1上的发热丝101加热过程中，该采样电路2对发热丝101的实际阻值变化进行实时监测，并将监测的结果转换为对应的采样信号，该采样信号即用于确定发热丝101的阻值。通过对发热丝101在加热过程中的实时阻值变化转换为相应的采样信号发送给控制器4，控制器4在接收该采样信号后进行相应的运算处理，转换为对应的实测阻值（该实测阻值为发热丝的当前实际阻值），再根据该实测阻值从存储在存储器中的阻值与时间对应关系映射表中查找与该实测阻值对应的匹配时间，再将该匹配时间与第一预设时间和第二预设时间进行比较判断，若该匹配时间小于第一预设时间，则可判定发热片1上没有烟支，并输出控制信号至关断电路控制发热丝101断开，停止给发热丝101加热；若匹配时间大于第一预设时间且小于第二预设时间，则可判定发热丝101上有烟支，此时控制器4不对发热丝101进行调整，以保持对发热丝101继续加热。通过上述控制可以有效避免发热丝101空烧、延长发热丝101的使用寿命，且可避免误触而烧伤用户，提高了电子烟的安全性，且还可以有效避免能源的浪费。
在此需要说明的是，本实施例存储在存储器中的阻值与时间对应关系映射表是与发热丝101关联的且唯一对应的，即该阻值与时间对应关系映射表反映的是该发热丝101的阻值与时间的对应关系。可选的，存储在存储器中的阻值与时间对应关系映射表可以为在该发热丝101生厂时进行相应的阻值与时间测试，对所获得的数据进行处理后形成该阻值与时间对应关系映射表后再存储在存储器中。在一些实施例中，阻值与时间的对应关系也可以制作成关系曲线存储在存储器中。
进一步地，本发明实施例的自动检测烟支的装置，还包括：
放大电路5，该放大电路5串联在采样电路2与控制器4的信号监测端之间，用于对采样信号进行放大处理后发送给控制器4。
采样电路2包括采样电阻，放大电路5包括第一输入端、第二输入端和输出端。
采样电阻的第一端与发热片1的正端连接，采样电阻的第一端与发热片1的正端的串联连接端与放大电路5的第一输入端连接，采样电阻的第二端与放大电路5的第二输入端连接，放大电路5的输出端与控制器4的信号监测端连接。
可以理解地，在本发明实施例中，采样电阻主要用于对发热丝101的实际阻值进行实时监测及采样，因此，所选择的采样电阻阻值很小，一般远小于发热丝101的阻值，进而既可以达到信号监测及采样的目的，也不会对电路产生不利影响。
由于采样电阻的阻值很小，其所生成的采样信号很小，因此，在本发明实施例中在控制器4的信号监测端与采样电阻之间增设放大电路5，通过放大电路5将采样信号进行运算放大处理后再发送给控制器4的信号监测端，可使采样信号可以稳定地被控制器4监测到，提升了信号传输的稳定性与准确度。
作为选择，放大电路5可以包括运算放大器，该运算放大器为高精度运算放大器。
本发明实施例中，关断电路3包括控制MOS管，控制MOS管的栅极与控制器4的功率控制端连接，控制MOS管的源极与采样电阻的第二端连接，控制MOS管的漏极与控制器4的供电引脚连接并接入供电电压。通过采样控制MOS管对发热丝101的加热时间进行控制，可以精确地控制发热丝101的加热温度。其具体控制原理为：控制器4输出PWM功率调节信号至控制MOS管的控制端，以控制MOS管的导通或关断，从而达到控制发热丝101的继续加热或停止加热的目的，最终实现对发热丝101的有效保护，避免发热丝101空烧而浪费能源、影响电子烟的使用寿命。
进一步的，本发明实施例的自动检测烟支的装置，还可以包括电池7，电池7设置在PCB控制板13的第二面上。该电池7主要用于给设置在PCB控制板13的第一面上的元器件供电。如图2所示，电池7的正输出端分别与控制MOS管的漏极和控制器4的供电引脚连接。由图2中可以看出，控制MOS管的导通或关断控制发热丝101的通断。例如，当控制MOS管导通时，电池7提供的供电电压即可经控制MOS管的漏极和源极后，再经采样电阻传送到发热片1的正端，发热片1处于加热状态，发热丝101加热；当控制MOS管关断时，此时，控制MOS管的漏极与源极为断开状态，供电电压不能通过，发热片1停止加热。
进一步的，本发明实施例的自动检测烟支的装置，还可以包括电池管理模块8，电池管理模块8并联在电池7的正输出端和负输出端之间，用于对电池7的充电进行管理和控制。
作为选择，电池管理模块8可以包括充电管理IC和电池保护IC，该充电管理IC可以对电池7的电量及充电进行实时监测和控制。例如，在充电过程中，充电管理IC实时监测电池7的充电状态，当电池7充满时，充电管理IC即输出控制信号切断电池7与外部电源的连接，使电池7自动关闭充电，避免电池7过充而损坏电池7。电池保护IC可用于对电池7进行管理和保护。
本发明实施例中，自动检测烟支的装置还可以包括：震动马达11以及与震动马达11连接的马达驱动电路10。其中，马达驱动电路10的控制端与控制器4的震动使能端连接、用于接收并根据控制器4的震动使能端输出的振动信号，产生驱动信号，并将驱动信号发送至震动马达11；震动马达11接收并根据驱动信号产生震动。
在使用过程中，当发热丝101加热结束可以开始吸烟时，控制器4即输出振动信号给马达驱动电路10，马达驱动电路10即导通并产生驱动信号以驱动震动马达11产生震动，提示用户可以开始吸烟。
可选的，本发明实施例的马达驱动电路10可以包括驱动MOS管，通过该驱动MOS管可实现对震动马达11的工作状态的控制。
本发明实施例中，自动检测烟支的装置还可以包括：至少一个LED指示灯6。其中，至少LED指示灯6设置在PCB控制板13的第一面上，用于指示电量信息/加热时间信息的LED指示灯6；且LED指示灯6的信号端分别与控制器4对应的信号引脚连接，当采用多个LED指示灯6时，每一个LED指示灯6的信号端分别与控制器4对应的信号引脚连接。
可选的，本实施例的LED指示灯6可以包括4个LED指示灯6，该4个LED指示灯6可以指示电池的电量信号或者发热丝101的加热时间信息。例如，在发热丝101加热过程中，4个LED灯根据控制器4输出的指示信号，自动执行亮灯动作，如当加热时间达到预设加热时间的一半时，亮2个LED灯；当加热时间达到预设加热时间时，4个LED灯全亮。或者当指示电量时，当接收到电量指示信号，则根据电量指示信号进行对应的亮灯指示，例如，若电量剩余50%时，2个LED灯亮，当电量剩余75%时，3个LED灯亮，当电量还有100%时，4个LED灯全亮。其中，加热时间信息指示在发热丝101在加热过程中执行，电量指示在发热丝101停止加热时执行。
进一步地，本发明实施例的自动检测烟支的装置还可以包括：与控制器4连接的按键开关。可选的，该按键开关可以设置在PCB控制板13第一面上的按键开关9，该按键开关9可用于触发自动检测烟支的装置的开启、电量指示等。例如，用户在使用过程中，短按按键开关9时，LED灯即显示电量；长按（例如长按3秒），发热丝101开始加热；在发热丝101加热过程中，若想手动控制停止发热丝101加热，可以长按（例如长按3秒），发热丝101即停止加热。
进一步地，本发明实施例的自动检测烟支的装置还包括壳体，该壳体设有用于放置自动检测烟支的装置的空腔，该空腔一端设有与第一开口121适配的开口，该空腔另一端设有供充电接口设置在其中的开口。
本发明的自动检测烟支的装置通过与发热片串联的采样电路实时监测发热丝的实际阻值变化，并基于存储在存储器中的与该发热丝关联的阻值与时间对应关系映射表，获得该发热丝的实际升温时间，并根据该发热丝的实际升温时间自动判断烟支是否有***发热片，进而根据判断结果控制发热片的通断，有效地避免发热片出现空烧的问题，在达到提高电子烟安全性的同时，还达到了节能的目的，延长了电子烟的使用寿命，避免电子烟空烧而误伤用户。
本发明还提供一种自动检测烟支的方法，该方法通过上述的自动检测烟支的装置实施，如图3所示，具体可以包括以下步骤：
S11、采样电路2监测发热丝的阻值变化并产生相应的采样信号，同时将采样信号发送给控制器4的信号监测端。
S12、控制器4接收并处理采样信号，获得发热丝101的实测阻值。
S13、控制器4根据实测阻值在存储器中存储的与发热丝101关联的阻值与时间对应关系映射表中查找，获得与实测阻值对应的匹配时间。
S14、控制器4判断匹配时间是否小于第一预设时间，若是，执行步骤S15；若否，执行步骤S16。
S15、控制器4判定发热丝上没有烟支100，并输出控制信号至关断电路3控制发热丝101断开，停止给发热丝101加热。
S16、控制器4判断匹配时间是否大于第一预设时间且小于第二预设时间，若是，控制器4判定发热丝101上有烟支100。
可选的，本发明实施例的第一预设时间和第二预设时间可以根据实际的测试时间确定。阻值与时间对应关系映射表为电子烟生产时对该电子烟中的发热丝反复测试，并根据测试数据进行处理获得的。
通过采用该自动检测烟支的方法，可以根据存储在存储器中的与该发热丝关联的阻值与时间对应关系映射表，获得该发热丝的实际升温时间，并根据该发热丝的实际升温时间自动判断烟支是否有***发热片，进而根据判断结果控制发热片的通断，有效地避免发热片出现空烧的问题，在达到提高电子烟安全性的同时，还达到了节能的目的，延长了电子烟的使用寿命，避免电子烟空烧而误伤用户。
以上实施例只为说明本发明的技术构思及特点，其目的在于让熟悉此项技术的人士能够了解本发明的内容并据此实施，并不能限制本发明的保护范围。凡跟本发明权利要求范围所做的均等变化与修饰，均应属于本发明权利要求的涵盖范围。
应当理解的是，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发明所附权利要求的保护范围。

Claims (10)

  1. 一种自动检测烟支的装置，其特征在于，包括：
    用于放置烟支的烟托，所述烟托的一端设有用于供烟支***的第一开口，所述烟托的另一端设有供发热片***的第二开口；
    所述发热片上贴设有用于加热的发热丝；
    与所述发热片电连接、用于在所述发热丝加热过程中实时监测所述发热丝的阻值以产生采样信号的采样电路；
    与所述采样电路连接、用于接收并根据所述采样电路发送的采样信号产生控制信号的控制器，所述控制器包括存储器，所述存储器内置于所述控制器中，且所述存储器内存储有与所述发热丝关联的阻值与时间对应关系映射表；
    分别与所述采样电路和所述控制器连接、用于根据所述控制信号控制所述发热丝通断的关断电路。
  2. 根据权利要求1所述的自动检测烟支的装置，其特征在于，所述烟托包括：
    容置腔，所述第一开口设置在所述容置腔的一端，所述第二开口设置在所述容置腔的另一端；所述第一开口供烟支***所述容置腔，所述第二开口供所述发热片***所述容置腔；
    所述容置腔适配不同形状的烟支。
  3. 根据权利要求1所述的自动检测烟支的装置，其特征在于，还包括：
    放大电路，所述放大电路串联在所述采样电路与所述控制器的信号监测端之间，用于对所述采样信号进行放大处理后发送给所述控制器；
    所述采样电路包括采样电阻，所述放大电路包括第一输入端、第二输入端和输出端；
    所述采样电阻的第一端与所述发热片的正端连接，所述采样电阻的第一端与所述发热片的正端的串联连接端与所述放大电路的第一输入端连接，所述采样电阻的第二端与所述放大电路的第二输入端连接，所述放大电路的输出端与所述控制器的信号监测端连接。
  4. 根据权利要求3所述的自动检测烟支的装置，其特征在于，所述关断电路包括控制MOS管，所述控制MOS管的栅极与所述控制器的功率控制端连接，所述控制MOS管的源极与所述采样电阻的第二端连接，所述控制MOS管的漏极与所述控制器的供电引脚连接并接入供电电压。
  5. 根据权利要求4所述的自动检测烟支的装置，其特征在于，还包括：电池；
    所述电池的正输出端分别与所述控制MOS管的漏极和所述控制器的供电引脚连接。
  6. 根据权利要求5所述的自动检测烟支的装置，其特征在于，还包括：
    电池管理模块，所述电池管理模块并联在所述电池的正输出端和负输出端之间，用于对所述电池的充电进行管理和控制。
  7. 根据权利要求1所述的自动检测烟支的装置，其特征在于，还包括：
    震动马达以及与所述震动马达连接的马达驱动电路；
    所述马达驱动电路的控制端与所述控制器的震动使能端连接、用于接收并根据所述控制器的震动使能端输出的振动信号，产生驱动信号，并将所述驱动信号发送至所述震动马达；
    所述震动马达用于接收并根据所述驱动信号产生震动。
  8. 根据权利要求1所述的自动检测烟支的装置，其特征在于，还包括至少一个用于指示电量信息/加热时间信息的LED指示灯；
    所述LED指示灯的信号端与所述控制器的信号引脚连接。
  9. 根据权利要求1所述的自动检测烟支的装置，其特征在于，还包括与所述控制器连接的按键开关，所述按键开关用于控制所述自动检测烟支的装置的开/关。
  10. 一种自动检测烟支的方法，应用于权利要求1-9任一项所述的自动检测烟支的装置，其特征在于，包括以下步骤：
    S11、采样电路监测发热丝的阻值变化并产生相应的采样信号，同时将所述采样信号发送给控制器的信号监测端；
    S12、所述控制器接收并处理所述采样信号，获得所述发热丝的实测阻值；
    S13、所述控制器根据所述实测阻值在存储器中存储的与所述发热丝关联的阻值与时间对应关系映射表中查找，获得与所述实测阻值对应的匹配时间；
    S14、所述控制器判断所述匹配时间是否小于第一预设时间，若是，执行步骤S15；若否，执行步骤S16；
    S15、所述控制器判定所述发热丝上没有烟支，并输出控制信号至关断电路控制所述发热丝断开，停止给所述发热丝加热；
    S16、所述控制器判断所述匹配时间是否大于所述第一预设时间且小于第二预设时间，若是，所述控制器判定所述发热丝上有烟支。
PCT/CN2018/116518 2018-01-08 2018-11-20 一种自动检测烟支的装置及方法 WO2019134457A1 (zh)

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CN109596975B (zh) * 2018-12-24 2021-03-30 深圳瀚星翔科技有限公司 电子烟电路板检测***及方法
KR102141649B1 (ko) 2019-03-06 2020-08-05 주식회사 케이티앤지 광 가이드부를 포함하는 고정체 및 이를 포함하는 에어로졸 생성 장치
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