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WO2014190563A1 - 电子烟电池反接保护装置及方法 - Google Patents

电子烟电池反接保护装置及方法 Download PDF

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Publication number
WO2014190563A1
WO2014190563A1 PCT/CN2013/076714 CN2013076714W WO2014190563A1 WO 2014190563 A1 WO2014190563 A1 WO 2014190563A1 CN 2013076714 W CN2013076714 W CN 2013076714W WO 2014190563 A1 WO2014190563 A1 WO 2014190563A1
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WO
WIPO (PCT)
Prior art keywords
battery
circuit
mos transistor
alarm
switch circuit
Prior art date
Application number
PCT/CN2013/076714
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English (en)
French (fr)
Inventor
向智勇
Original Assignee
瑞吉高新科技股份有限公司
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Publication date
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Publication of WO2014190563A1 publication Critical patent/WO2014190563A1/zh

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H11/00—Emergency protective circuit arrangements for preventing the switching-on in case an undesired electric working condition might result
    • H02H11/002—Emergency protective circuit arrangements for preventing the switching-on in case an undesired electric working condition might result in case of inverted polarity or connection; with switching for obtaining correct connection
    • H02H11/003—Emergency protective circuit arrangements for preventing the switching-on in case an undesired electric working condition might result in case of inverted polarity or connection; with switching for obtaining correct connection using a field effect transistor as protecting element in one of the supply lines
    • 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
    • A24F40/60—Devices with integrated user interfaces

Definitions

  • the invention relates to an electronic cigarette, in particular to an electronic cigarette battery reverse connection protection device and method.
  • the technical problem to be solved by the present invention is to provide an electronic cigarette battery reverse connection protection device and method for the above-mentioned defects that the above-mentioned technology cannot achieve anti-battery reverse connection.
  • the technical solution adopted by the present invention to solve the technical problem thereof is: constructing an electronic cigarette battery reverse connection protection device, comprising a battery, a switch circuit, an alarm circuit, a discharge control circuit and a load circuit, wherein the battery is connected to the switch circuit, The switch circuit is respectively connected to the discharge control circuit and the alarm circuit, and the discharge control circuit is connected to the load circuit;
  • the switch circuit is configured to determine whether the battery is reversely connected according to a power signal provided by the detection battery, when the battery is reversely connected, the discharge control circuit is disconnected, and the alarm circuit is turned on to issue an alarm signal when the battery Positively connected, the discharge control circuit controls the operation of the load circuit.
  • the switch circuit includes a first switch circuit and a second switch circuit
  • the first switch circuit is connected to the discharge control circuit, and the first switch circuit is configured to open the discharge control circuit by detecting that the battery is reversely connected;
  • the second switch circuit is connected to the alarm circuit, and the second switch circuit is configured to turn on the alarm circuit by detecting when the battery is reversely connected, thereby reminding the battery to reverse.
  • the first switch circuit includes a first MOS transistor, the first MOS transistor is a P-type MOS transistor, and the gate of the first MOS transistor is connected.
  • the negative electrode and the drain of the battery are connected to the positive electrode of the battery, and the source is connected to the discharge control circuit.
  • the first switch circuit includes a first MOS transistor, the first MOS transistor is an N-type MOS transistor, and the gate connection of the first MOS transistor A positive electrode and a drain of the battery are connected to a negative electrode of the battery, and a source is connected to the discharge control circuit.
  • the second switch circuit includes a second MOS transistor, the second MOS transistor is a P-type MOS transistor, and the gate of the second MOS transistor is connected.
  • a positive electrode and a drain of the battery are connected to a negative electrode of the battery, and a source is connected to the alarm circuit.
  • the second switch circuit includes a second MOS transistor, the second MOS transistor is an N-type MOS transistor, and the gate connection of the second MOS transistor The negative electrode and the drain of the battery are connected to the positive electrode of the battery, and the source is connected to the alarm circuit.
  • the second switch circuit includes a diode, a cathode of the diode is connected to a positive pole of the battery, and a positive pole of the diode is connected to the alarm circuit.
  • the diode is used to control whether the alarm circuit is conducting using its unidirectionality.
  • the alarm circuit includes a light emitting diode and a current limiting resistor, and a cathode of the light emitting diode is connected to a gate of the second MOS tube, and the light emitting The anode of the diode is connected to one end of the current limiting resistor, and the other end of the current limiting resistor is connected to the source of the second MOS transistor.
  • the alarm circuit includes a light emitting diode and a current limiting resistor, and a cathode of the light emitting diode is connected to a source of the second MOS tube, and the light emitting The anode of the diode is connected to one end of the current limiting resistor, and the other end of the current limiting resistor is connected to the gate of the second MOS transistor.
  • the alarm circuit includes a light emitting diode and a current limiting resistor, a cathode of the light emitting diode is connected to a positive pole of the diode, and an anode of the light emitting diode is connected. To one end of the current limiting resistor, the other end of the current limiting resistor is connected to a negative pole of the battery.
  • the alarm circuit further includes a buzzer, and the series branch of the light emitting diode and the current limiting resistor is connected in parallel with the buzzer.
  • the invention also provides a method for reverse connection protection of an electronic cigarette battery, the method comprising the following steps:
  • the switch circuit detects a power signal provided by the battery
  • the switch circuit determines whether the battery is reversed, yes, proceeds to step S3, otherwise, proceeds to step S4;
  • the battery is successfully installed, and the discharge control circuit controls the operation of the load circuit.
  • the step S3 specifically includes:
  • the second switch circuit is turned on, and the second switch circuit controls the alarm circuit to send an alarm signal, where the alarm signal includes a flashing light and/or a whistle alarm.
  • the electronic cigarette battery reverse connection protection device and method embodying the invention have the following beneficial effects: by adding a switch circuit and an alarm circuit, using the MOS tube in the switch circuit, effectively preventing the electronic cigarette product and the accessory of the replaceable battery because the battery is positive and negative The risk caused by the reverse connection, combined with the alarm circuit to prompt the user, and the MOS tube meets low power consumption and high efficiency.
  • FIG. 1 is a schematic view showing the structure of an electronic cigarette of the prior art
  • FIG. 2 is a schematic structural view of a first embodiment of an electronic cigarette battery reverse connection protection device according to the present invention
  • FIG. 3 is a circuit diagram of a first embodiment of a reverse connection protection device for an electronic cigarette battery according to the present invention
  • FIG. 4 is a circuit diagram of a second embodiment of the electronic cigarette battery reverse connection protection device of the present invention.
  • FIG. 5 is a circuit diagram of a third embodiment of the electronic cigarette battery reverse connection protection device of the present invention.
  • FIG. 6 is a flow chart of a method for reversely protecting an electronic cigarette battery of the present invention.
  • FIG. 2 is a schematic structural view of a first embodiment of the electronic cigarette battery reverse connection protection device of the present invention.
  • the first embodiment of the present invention includes a battery 100, a switch circuit 200, an alarm circuit 300, a discharge control circuit 400, and a load circuit 500.
  • Battery 100 is coupled to switch circuit 200.
  • the switch circuit 200 is connected to the discharge control circuit 400 and the alarm circuit 300, respectively.
  • the switch circuit 200 is configured to determine whether the 100 is reversed according to the power supply signal provided by the battery 100 to control the opening of the alarm circuit 300 and the discharge control circuit 400.
  • the switch circuit 200 includes a first switch circuit 210 and a second switch circuit 220.
  • the first switch circuit 210 is connected to the discharge control circuit 400 for controlling the breaking of the discharge control circuit 400 by determining whether the battery 100 is reversely connected, thereby preventing the discharge control circuit 400 from being damaged when the battery 100 is reversely connected, and the second switch circuit 220 is connected.
  • the alarm circuit 300 is configured to control the opening and closing of the alarm circuit 300 by determining whether the battery 100 is reversely connected, thereby realizing whether the battery 100 is reversely connected.
  • the alarm circuit 300 includes an LED D and a current limiting resistor R.
  • the cathode of the LED D is connected to the anode of the battery 100 via the second switching circuit 220.
  • the anode of the LED D is connected to one end of the current limiting resistor R.
  • the other end of R is connected to the negative terminal of the battery 100 via the second switching circuit 220.
  • the alarm circuit 300 may further include a buzzer H, and the series branch of the light-emitting diode D and the current limiting resistor R is connected in parallel with the buzzer H.
  • the alarm circuit 300 may also include a single chip microcomputer (indefinite type of the single chip microcomputer), a light emitting diode, and a buzzer (which may be a light emitting diode and/or a buzzer, a preferred light emitting diode and a buzzer).
  • the single chip microcomputer is used to control whether the light emitting diode and the buzzer start to alarm according to the breaking of the second switch circuit 220 and the alarm duration. For example, when the second switch circuit 220 is disconnected, the single chip does not work, and no alarm is issued.
  • the signal when the second switch circuit 220 is turned on, the single chip microcomputer starts to work, sends an alarm signal of flashing lights and whistling, and the single chip computer controls the alarm duration, the alarm duration is 5-30 seconds, preferably 10 seconds, If, during the duration, the power signal detected by the second switch circuit 220 is still reversed, the single chip microcomputer will stop issuing an alarm signal to avoid energy consumption.
  • the design of the single chip alarm circuit belongs to a well-known technology in the field of electronic technology, so Let me repeat.
  • the discharge control circuit 400 is connected to the load circuit 500.
  • the discharge control circuit 400 is used to control the operation of the load circuit 500.
  • FIG. 3 is a schematic circuit diagram of a first embodiment of the electronic cigarette battery reverse connection protection device of the present invention.
  • a battery 100 a switch circuit 200, an alarm circuit 300, a discharge control circuit 400, and a load circuit 500 are included, wherein the switch circuit 200 includes a first switch circuit 210 and a second switch circuit 220.
  • the alarm circuit 300 includes a flashing light and a whistle alarm.
  • the first switching circuit 210 includes a first MOS transistor Q1, the first MOS transistor Q1 is P-type, the gate of the first MOS transistor Q1 is connected to the cathode of the battery 100, the drain is connected to the anode of the battery 100, and the source is connected to Discharge control circuit 400.
  • the second switch circuit 220 includes a second MOS transistor Q2, the second MOS transistor Q2 is P-type, the gate of the second MOS transistor Q2 is connected to the anode of the battery 100, the drain is connected to the cathode of the battery 100, and the source is connected to Alarm circuit 300.
  • the alarm circuit 300 includes an LED D, a current limiting resistor R and a buzzer H.
  • the cathode of the LED D is connected to the gate of the second MOS transistor Q2, and the anode of the LED D is connected to one end of the current limiting resistor R.
  • the other end of the current limiting resistor R is connected to the source of the second MOS transistor Q2.
  • a series branch of the light-emitting diode D and the current limiting resistor R is connected in parallel with the buzzer H.
  • the Vcc pin of the single-chip microcomputer is connected to the source of the second MOS transistor Q2, and the Vss pin of the single-chip microcomputer is connected to the positive pole of the battery 100.
  • the LED D and the buzzer H are connected in series and connected to the pins P1.0 and P1.1 of the single chip microcomputer, and the single chip microcomputer is used to control whether the LED D and the buzzer H start to alarm and alarm according to the opening and closing of the second switch circuit 220. duration.
  • the battery positive signal is connected to the drain of the first MOS transistor Q1 and is supplied to the source of the first MOS transistor Q1 through the parasitic diode, and the battery negative signal is directly connected to the gate of the first MOS transistor Q1.
  • Vgs1 a voltage difference between the gate and the source, and at this time, the Vgs1 of the first MOS transistor Q1 is a negative value and is smaller than the turn-on voltage of the first MOS transistor Q1 (the turn-on voltage of the P-type MOS transistor is negative)
  • the value is such that the drain and the source are turned on (the MOS transistor after the turn-on is equivalent to a resistor having a small resistance value, the power consumption applied to the MOS transistor is also small, the efficiency is high, and there is almost no heat), and thus the control is performed.
  • the discharge control circuit 400 is turned on, and the discharge control circuit 400 controls the load circuit 500 to operate normally; on the other hand, the battery positive signal is directly connected to the gate of the second MOS transistor Q2, so that a voltage is generated between the gate and the source.
  • the difference Vgs2, at this time, the Vgs2 of the second MOS transistor Q2 is a positive value, and is larger than the turn-on voltage of the second MOS transistor Q2, so that the drain and the source are turned off, and thus the control alarm circuit 300 is turned off, and no alarm signal is issued.
  • the battery positive signal is directly connected to the gate of the first MOS transistor Q1. Therefore, a voltage difference Vgs1 is generated between the gate and the source, and the Vgs1 of the first MOS transistor Q1 is Positive value, and larger than the turn-on voltage of the first MOS transistor Q1, so that the drain and the source are turned off, thereby controlling the discharge control circuit 400 to be turned off, the load circuit 500 is not working; on the other hand, the battery positive signal is connected to the second MOS transistor
  • the drain of Q2 is supplied to the source of the second MOS transistor Q2 through a parasitic diode, and the battery negative signal is directly connected to the gate of the second MOS transistor Q2, so that a voltage difference Vgs2 is generated between the gate and the source, At this time, the Vgs2 of the second MOS transistor Q2 is a negative value, and is smaller than the turn-on voltage of the second MOS transistor Q2, so that the drain and the source are turned on, and thus the control alarm circuit
  • FIG. 4 is a schematic circuit diagram of a second embodiment of the electronic cigarette battery reverse connection protection device of the present invention.
  • the battery 100, the switch circuit 200, the alarm circuit 300, the discharge control circuit 400, and the load circuit 500 are included, wherein the switch circuit 200 includes a first switch circuit 210 and a second switch circuit 220.
  • the alarm circuit 300 includes a flashing alarm.
  • the first switching circuit 210 includes a first MOS transistor Q1, the first MOS transistor Q1 is N-type, the gate of the first MOS transistor Q1 is connected to the anode of the battery 100, the drain is connected to the cathode of the battery 100, and the source is connected to Discharge control circuit 400.
  • the second switch circuit 220 includes a second MOS transistor Q2, the second MOS transistor Q2 is N-type, the gate of the second MOS transistor Q2 is connected to the cathode of the battery 100, the drain is connected to the anode of the battery 100, and the source is connected to Alarm circuit 300.
  • the alarm circuit 300 includes an LED D, a current limiting resistor R and a buzzer H.
  • the cathode of the LED D is connected to the source of the second MOS transistor Q2, and the anode of the LED D is connected to one end of the current limiting resistor R.
  • the other end of the current limiting resistor R is connected to the gate of the second MOS transistor Q2.
  • the second switch circuit 220 selects the N-type MOS tube
  • the Vcc pin of the single-chip microcomputer is connected to the negative pole of the battery 100
  • the Vss pin of the single-chip microcomputer is connected to the source of the second MOS tube Q2.
  • the two ends of the LED D are connected to the pins P1.0 and P1.1 of the single chip microcomputer, and the single chip microcomputer is used to control whether the LED D starts to alarm and the alarm duration according to the breaking of the second switch circuit 220.
  • the battery positive signal is directly connected to the gate of the first MOS transistor Q1. Therefore, a voltage difference Vgs1 is generated between the gate and the source, and the Vgs1 of the first MOS transistor Q1 is positive.
  • the value is greater than the turn-on voltage of the first MOS transistor Q1, so that the drain and the source are turned on, thereby controlling the discharge control circuit 400 to be turned on, and the discharge control circuit 400 controls the load circuit 500 to operate normally; on the other hand, the battery negative signal is directly Connected to the gate of the second MOS transistor Q2, therefore, a voltage difference Vgs2 is generated between the gate and the source, at which time Vgs2 of the second MOS transistor Q2 is smaller than the turn-on voltage of the second MOS transistor Q2, so that the drain The source is turned off, and then the control alarm circuit 300 is turned off, and no alarm signal is issued.
  • the battery negative signal is directly connected to the gate of the first MOS transistor Q1. Therefore, a voltage difference Vgs1 is generated between the gate and the source, and the Vgs1 of the first MOS transistor Q1 is smaller than this.
  • the turn-on voltage of the first MOS transistor Q1 is such that the drain and the source are turned off, thereby controlling the discharge control circuit 400 to be turned off, and the load circuit 500 is not operated; on the other hand, the battery positive signal is directly connected to the gate of the second MOS transistor Q2.
  • Vgs2 a voltage difference Vgs2 is generated between the gate and the source, and at this time, the Vgs2 of the second MOS transistor Q2 is positive, and is larger than the turn-on voltage of the second MOS transistor Q2, so that the drain and the source are turned on, thereby further
  • the control control alarm circuit 300 is turned on, and an alarm signal is issued to realize a flashing light alarm.
  • FIG. 5 is a schematic circuit diagram of a third embodiment of the electronic cigarette battery reverse connection protection device of the present invention.
  • the battery 100, the switch circuit 200, the alarm circuit 300, the discharge control circuit 400, and the load circuit 500 are included, wherein the switch circuit 200 includes a first switch circuit 210 and a second switch circuit 220.
  • the alarm circuit 300 includes a flashing light and a whistle alarm.
  • the first switching circuit 210 includes a first MOS transistor Q1, the first MOS transistor Q1 is P-type, the gate of the first MOS transistor Q1 is connected to the cathode of the battery 100, the drain is connected to the anode of the battery 100, and the source is connected to Discharge control circuit 400.
  • the second switching circuit 220 includes a diode D1 whose anode is connected to the anode of the battery 100, and the anode of the diode D1 is connected to the alarm circuit 300.
  • the alarm circuit 300 includes an LED D, a current limiting resistor R and a buzzer H.
  • the cathode of the LED D is connected to the anode of the diode D1
  • the anode of the LED D is connected to one end of the current limiting resistor R
  • the current limiting resistor R The other end is connected to the negative pole of the battery 100.
  • a series branch of the light-emitting diode D and the current limiting resistor R is connected in parallel with the buzzer H.
  • the Vcc pin of the single chip is connected to the negative pole of the battery 100, and the Vss pin of the single chip is connected to the positive pole of the diode D1, the light emitting diode D and the buzzer.
  • the device H is connected in series to the pins P1.0 and P1.1 of the single chip microcomputer, and the single chip microcomputer is used to control whether the light emitting diode D and the buzzer H start to alarm and the alarm duration according to the breaking of the second switch circuit 220.
  • the battery positive signal is connected to the drain of the first MOS transistor Q1 and is supplied to the source of the first MOS transistor Q1 through the parasitic diode, and the battery negative signal is directly connected to the gate of the first MOS transistor Q1. Therefore, a voltage difference Vgs1 is generated between the gate and the source, and at this time, the Vgs1 of the first MOS transistor Q1 is a negative value, and is smaller than the turn-on voltage of the first MOS transistor Q1, so that the drain and the source are turned on. Further, the discharge control circuit 400 is controlled to be turned on, and the discharge control circuit 400 controls the load circuit 500 to operate normally.
  • the negative electrode of the diode D1 is connected to the positive electrode of the battery 100, and the single-conductivity is in an off state according to the unidirectionality thereof, thereby controlling the alarm circuit 300 to be broken. On, no alarm signal is issued.
  • the battery positive signal is directly connected to the gate of the first MOS transistor Q1. Therefore, a voltage difference Vgs1 is generated between the gate and the source, and the Vgs1 of the first MOS transistor Q1 is The positive value is greater than the turn-on voltage of the first MOS transistor Q1, so that the drain and the source are turned off, thereby controlling the discharge control circuit 400 to be turned off, and the load circuit 500 is not operated; on the other hand, the negative electrode of the diode D1 is connected to the negative electrode of the battery 100.
  • the control circuit 300 is turned on, and the alarm circuit is turned on to issue an alarm signal to realize the flashing and whistling alarm.
  • the battery 100, the switch circuit 200, the alarm circuit 300, the discharge control circuit 400, and the load circuit 500 are included, wherein the switch circuit 200 includes a first switch circuit 210 and a second switch circuit 220.
  • the alarm circuit 300 includes a single chip microcomputer and a light emitting diode to realize a flashing light alarm.
  • the first switching circuit 210 includes a first MOS transistor Q1, the first MOS transistor Q1 is P-type, the gate of the first MOS transistor Q1 is connected to the cathode of the battery 100, the drain is connected to the anode of the battery 100, and the source is connected to Discharge control circuit 400.
  • the second switch circuit 220 includes a second MOS transistor Q2, the second MOS transistor Q2 is N-type, the gate of the second MOS transistor Q2 is connected to the cathode of the battery 100, the drain is connected to the anode of the battery 100, and the source is connected to Alarm circuit 300.
  • the battery positive signal is supplied to the source of the first MOS transistor Q1 through the parasitic diode, and the battery negative signal is directly connected to the gate of the first MOS transistor Q1, thus between the gate and the source The voltage difference Vgs1 is generated.
  • Vgs1 of the first MOS transistor Q1 is a negative value, and is smaller than the turn-on voltage of the first MOS transistor Q1, so that the drain and the source are turned on, thereby controlling the discharge control circuit 400 to be turned on, and discharging control
  • the circuit 400 controls the load circuit 500 to operate normally; on the other hand, the battery negative signal is directly connected to the gate of the second MOS transistor Q2, so a voltage difference Vgs2 is generated between the gate and the source, and the second MOS transistor
  • the Vgs2 of Q2 is smaller than the turn-on voltage of the second MOS transistor Q2, so that the drain and the source are turned off, and thus the control alarm circuit 300 is turned off, that is, the single-chip microcomputer in the control alarm circuit 300 does not work, and no alarm signal is issued.
  • the battery positive signal is directly connected to the gate of the first MOS transistor Q1. Therefore, a voltage difference Vgs1 is generated between the gate and the source, and the Vgs1 of the first MOS transistor Q1 is Positive value, and larger than the turn-on voltage of the first MOS transistor Q1, so that the drain and the source are turned off, thereby controlling the discharge control circuit 400 to be turned off, the load circuit 500 is not working; on the other hand, the battery positive signal is directly connected to the second MOS The gate of the transistor Q2, therefore, a voltage difference Vgs2 is generated between the gate and the source, at which time the Vgs2 of the second MOS transistor Q2 is positive and larger than the turn-on voltage of the second MOS transistor Q2 such that the drain and the source
  • the pole is turned on, and then the control and control alarm circuit 300 is turned on, that is, the single-chip microcomputer in the control alarm circuit 300 starts to work, and an alarm signal is issued to realize the flashing light alarm.
  • the battery 100, the switch circuit 200, the alarm circuit 300, the discharge control circuit 400, and the load circuit 500 are included, wherein the switch circuit 200 includes a first switch circuit 210 and a second switch circuit 220.
  • the alarm circuit 300 includes a flashing alarm.
  • the first switching circuit 210 includes a first MOS transistor Q1, the first MOS transistor Q1 is N-type, the gate of the first MOS transistor Q1 is connected to the anode of the battery 100, the drain is connected to the cathode of the battery 100, and the source is connected to Discharge control circuit 400;
  • the second switch circuit 220 includes a second MOS transistor Q2, the second MOS transistor Q2 is P-type, the gate of the second MOS transistor Q2 is connected to the anode of the battery 100, the drain is connected to the cathode of the battery 100, and the source is connected to Alarm circuit 300.
  • the alarm circuit 300 includes an LED D, a current limiting resistor R, the cathode of the LED D is connected to the gate of the second MOS transistor Q2, the anode of the LED D is connected to one end of the current limiting resistor R, and the current limiting resistor R The other end is connected to the source of the second MOS transistor Q2.
  • the battery positive signal is directly connected to the gate of the first MOS transistor Q1. Therefore, a voltage difference Vgs1 is generated between the gate and the source, and the Vgs1 of the first MOS transistor Q1 is positive.
  • the value is greater than the turn-on voltage of the first MOS transistor Q1 (the turn-on voltage of the N-type MOS transistor is positive), so that the drain and the source are turned on, thereby controlling the discharge control circuit 400 to be turned on, and the discharge control circuit 400 controls the load circuit.
  • the battery positive signal is directly connected to the gate of the second MOS transistor Q2, therefore, a voltage difference Vgs2 is generated between the gate and the source, and the Vgs2 of the second MOS transistor Q2 is positive.
  • the value is greater than the turn-on voltage of the second MOS transistor Q2, so that the drain and the source are turned off, and thus the control alarm circuit 300 is turned off, and no alarm signal is issued.
  • the battery negative signal is directly connected to the gate of the first MOS transistor Q1. Therefore, a voltage difference Vgs1 is generated between the gate and the source, and the Vgs1 of the first MOS transistor Q1 is smaller than this.
  • the turn-on voltage of the first MOS transistor Q1 is such that the drain and the source are turned off, thereby controlling the discharge control circuit 400 to be turned off, and the load circuit 500 is not operated; on the other hand, the battery positive signal is connected to the drain of the second MOS transistor Q2 and The parasitic diode is applied to the source of the second MOS transistor Q2, and the battery negative signal is directly connected to the gate of the second MOS transistor Q2.
  • Vgs2 a voltage difference between the gate and the source, and the second MOS is present.
  • the Vgs2 of the tube Q2 is a negative value, and is smaller than the turn-on voltage of the second MOS transistor Q2, so that the drain and the source are turned on, and the control and alarm circuit 300 is turned on, and an alarm signal is issued to realize the flashing alarm.
  • a battery 100, a switch circuit 200, an alarm circuit 300, a discharge control circuit 400, and a load circuit 500 are included, wherein the switch circuit 200 includes a first switch circuit 210 and a second switch circuit 220.
  • the alarm circuit 300 includes a single chip microcomputer, a light emitting diode and a buzzer for implementing a flashing light and a whistle alarm.
  • the first switching circuit 210 includes a first MOS transistor Q1, the first MOS transistor Q1 is N-type, the gate of the first MOS transistor Q1 is connected to the anode of the battery 100, the drain is connected to the cathode of the battery 100, and the source is connected to Discharge control circuit 400;
  • the second switching circuit 220 includes a diode D1 whose anode is connected to the anode of the battery 100, and the anode of the diode D1 is connected to the alarm circuit 300.
  • the battery positive signal is directly connected to the gate of the first MOS transistor Q1. Therefore, a voltage difference Vgs1 is generated between the gate and the source, and the Vgs1 of the first MOS transistor Q1 is positive.
  • the value is greater than the turn-on voltage of the first MOS transistor Q1, so that the drain and the source are turned on, thereby controlling the discharge control circuit 400 to be turned on, and the discharge control circuit 400 controls the load circuit 500 to operate normally; on the other hand, the diode D1 is connected to the negative electrode.
  • the positive electrode of the battery 100 is in an off state according to its single-conductivity, and the alarm circuit 300 is controlled to be turned off, that is, the single-chip microcomputer in the control alarm circuit 300 does not work, and no alarm signal is issued.
  • the battery negative signal is directly connected to the gate of the first MOS transistor Q1. Therefore, a voltage difference Vgs1 is generated between the gate and the source, and the Vgs1 of the first MOS transistor Q1 is smaller than this.
  • the turn-on voltage of the first MOS transistor Q1 is such that the drain and the source are turned off, thereby controlling the discharge control circuit 400 to be turned off, and the load circuit 500 is not operated; on the other hand, the negative electrode of the diode D1 is connected to the negative electrode of the battery 100, according to its single guide
  • the generality is in the on state, and then the control alarm circuit 300 is turned on, and an alarm signal is issued to realize the flashing and whistling alarm.
  • FIG. 6 is a flow chart of a method for reversely protecting an electronic cigarette battery according to an electric embodiment of the present invention.
  • the method for reversely protecting the electronic cigarette battery of the embodiment of the invention comprises the following steps:
  • the switch circuit 200 detects a power signal provided by the battery 100;
  • the switch circuit 200 determines whether the battery 100 is reversed, yes, proceeds to step S3, otherwise, proceeds to step S4;
  • the discharge control circuit 400 is turned off, and the alarm circuit 300 is turned on to issue an alarm signal.
  • Step S3 specifically includes:
  • the first switch circuit 210 is turned off, and the first switch circuit 210 controls the discharge control circuit 400 to be turned off;
  • the second switch circuit 220 is turned on, and the second switch circuit controls the alarm circuit 300 to issue an alarm signal, and the alarm signal preferably flashes and whistle alarm.
  • the battery 100 is successfully placed, and the discharge control circuit 400 controls the operation of the load circuit 500.
  • the first MOS tube in the switch circuit 200 is used to effectively prevent the risk of the electronic cigarette product and the accessory of the replaceable battery due to the positive and negative reverse connection of the battery, and simultaneously remind the alarm circuit to promptly remind Users, and MOS tubes meet low power consumption and high efficiency.

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  • Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

一种电子烟电池反接保护装置及方法，该装置包括电池（100）、开关电路（200）、报警电路（300）、放电控制电路（400）和负载电路（500），电池（100）连接至开关电路（200），开关电路（200）分别连接至放电控制电路（400）和报警电路（300），放电控制电路（400）连接至负载电路（500）；开关电路（200）检测电池（100）提供的电源信号判断电池是否反接，当电池反接时，放电控制电路（400）断开，报警电路（300）导通发出报警信号，当电池正接时，放电控制电路（400）控制负载电路（500）工作。本发明利用开关电路（200）中的MOS管，有效防止可更换电池的电子烟产品及附件因为电池正负极反接造成的风险。

Description

电子烟电池反接保护装置及方法 技术领域
本发明涉及电子烟，尤其涉及一种电子烟电池反接保护装置及方法。
背景技术
目前大部分的电子香烟产品没有电池防反接电路，采用如图1所示的方式连接，这样的电路结构存在一定风险，如果在可更换电池的电子烟产品及附件中，更换电池时，可能会损坏放电控制电路，造成元件烧坏，短路，电池爆炸，甚至引起火灾。
发明内容
本发明要解决的技术问题在于，针对现有技术的上述不能实现防电池反接的缺陷，提供一种电子烟电池反接保护装置及方法。
本发明解决其技术问题所采用的技术方案是：构造一种电子烟电池反接保护装置，包括电池、开关电路、报警电路、放电控制电路和负载电路，所述电池连接至所述开关电路，所述开关电路分别连接至所述放电控制电路和所述报警电路，所述放电控制电路连接至所述负载电路；
所述开关电路用于根据检测电池提供的电源信号判断所述电池是否反接，当所述电池反接，所述放电控制电路断开，所述报警电路导通发出报警信号，当所述电池正接，所述放电控制电路控制所述负载电路工作。
在本发明所述的电子烟电池反接保护装置中，所述开关电路包括第一开关电路和第二开关电路；
所述第一开关电路连接至所述放电控制电路，所述第一开关电路用于通过检测所述电池反接时断开所述放电控制电路；
所述第二开关电路连接至所述报警电路，所述第二开关电路用于通过检测所述电池反接时导通所述报警电路，进而提醒所述电池反接。
在本发明所述的电子烟电池反接保护装置中，所述第一开关电路包括一第一MOS管，所述第一MOS管为P型MOS管，所述第一MOS管的栅极连接至所述电池的负极、漏极连接至所述电池的正极，源极连接至所述放电控制电路。
在本发明所述的电子烟电池反接保护装置中，所述第一开关电路包括一第一MOS管，所述第一MOS管为N型MOS管，所述第一MOS管的栅极连接至所述电池的正极、漏极连接至所述电池的负极，源极连接至所述放电控制电路。
在本发明所述的电子烟电池反接保护装置中，所述第二开关电路包括一第二MOS管，所述第二MOS管为P型MOS管，所述第二MOS管的栅极连接至所述电池的正极、漏极连接至所述电池的负极，源极连接至所述报警电路。
在本发明所述的电子烟电池反接保护装置中，所述第二开关电路包括一第二MOS管，所述第二MOS管为N型MOS管，所述第二MOS管的栅极连接至所述电池的负极、漏极连接至所述电池的正极，源极连接至所述报警电路。
在本发明所述的电子烟电池反接保护装置中，所述第二开关电路包括一二极管，所述二极管的负极连接至所述电池的正极，所述二极管正极连接至所述报警电路，所述二极管用于利用其单向导通性来控制所述报警电路是否导通。
在本发明所述的电子烟电池反接保护装置中，所述报警电路包括一发光二极管和一限流电阻，所述发光二极管的负极接至所述第二MOS管的栅极，所述发光二极管的正极连接至所述限流电阻的一端，所述限流电阻的另一端连接至所述第二MOS管的源极。
在本发明所述的电子烟电池反接保护装置中，所述报警电路包括一发光二极管和一限流电阻，所述发光二极管的负极连接至所述第二MOS管的源极，所述发光二极管的正极连接至所述限流电阻的一端，所述限流电阻的另一端连接至所述第二MOS管的栅极。
在本发明所述的电子烟电池反接保护装置中，所述报警电路包括一发光二极管和一限流电阻，所述发光二极管的负极接至所述二极管的正极，所述发光二极管的正极连接至所述限流电阻的一端，所述限流电阻的另一端连接至所述电池的负极。
在本发明所述的电子烟电池反接保护装置中，所述报警电路还包括一蜂鸣器，所述发光二极管与所述限流电阻组成的串联支路与所述蜂鸣器并联。
本发明还提供一种电子烟电池反接保护方法，所述方法包括以下步骤：
S1、所述开关电路检测所述电池提供的电源信号；
S2、所述开关电路判断所述电池是否反接，是，转入步骤S3，否则，转入步骤S4；
S3、所述放电控制电路断开，所述报警电路导通发出报警信号；
S4、安置电池成功，所述放电控制电路控制所述负载电路的工作。
在本发明所述的电子烟电池反接保护方法中，所述步骤S3具体包括：
S31、所述第一开关电路断开，所述第一开关电路控制所述放电控制电路断开；
S32、所述第二开关电路导通，所述第二开关电路控制所述报警电路发出报警信号，所述报警信号包括闪灯和/或鸣笛报警。
实施本发明的电子烟电池反接保护装置及方法，具有以下有益效果：通过增加开关电路和报警电路，利用开关电路中的MOS管，有效防止可更换电池的电子烟产品及附件因为电池正负反接造成的风险，同时结合报警电路及时提醒使用者，且MOS管满足低功耗、高效率。
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是现有技术的电子烟结构示意图；
图2是本发明电子烟电池反接保护装置第一实施例的结构示意图；
图3是本发明电子烟电池反接保护装置第一实施例的电路示意图；
图4是本发明电子烟电池反接保护装置第二实施例的电路示意图；
图5是本发明电子烟电池反接保护装置第三实施例的电路示意图；
图6是本发明电子烟电池反接保护方法的流程图。
具体实施方式
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。
如图2所示，是本发明电子烟电池反接保护装置第一实施例的结构示意图。
本发明第一实施例包括电池100、开关电路200、报警电路300、放电控制电路400和负载电路500。
电池100连接至开关电路200。开关电路200分别连接至放电控制电路400和报警电路300，开关电路200用于根据电池100提供的电源信号判断100是否反接进而控制报警电路300和放电控制电路400的开断。
具体的，开关电路200包括第一开关电路210和第二开关电路220。
第一开关电路210连接至放电控制电路400，用于通过判断电池100是否反接来控制放电控制电路400的开断，实现防止电池100反接时损坏放电控制电路400，第二开关电路220连接至报警电路300，用于通过判断电池100是否反接来控制报警电路300的开断，实现提醒电池100是否反接。
报警电路300包括一发光二极管D和一限流电阻R，发光二极管D的负极经第二开关电路220连接至电池100的正极，发光二极管D的正极连接至限流电阻R的一端，限流电阻R的另一端经第二开关电路220连接至电池100的负极。报警电路300还可以包括一蜂鸣器H，发光二极管D与限流电阻R组成的串联支路与蜂鸣器H并联。
报警电路300也可以是包括一单片机（单片机的型号不定）、一发光二极管和一蜂鸣器（可以是发光二极管和/或蜂鸣器，优选的发光二极管和蜂鸣器）。单片机用于根据第二开关电路220的开断控制发光二极管和蜂鸣器是否开始报警以及报警持续时间，例如在第二开关电路220断开的情况下，单片机不工作，也就不会发出报警信号，在第二开关电路220导通的情况下，单片机开始工作，发出闪灯和鸣笛的报警信号，同时单片机会控制报警持续时间，报警持续时间为5-30秒，优选的10秒，如果在该持续时间内，第二开关电路220检测到的电源信号仍然为反接，则单片机将停止发出报警信号以免耗费能量，单片机报警电路的设计属于电子技术领域的公知技术，所以此处不再赘述。
放电控制电路400连接至负载电路500。放电控制电路400用于控制负载电路500的工作。
如图3所示，是本发明电子烟电池反接保护装置第一实施例的电路示意图。
在本发明第一实施例中，包括电池100、开关电路200、报警电路300、放电控制电路400和负载电路500，其中，开关电路200包括第一开关电路210和第二开关电路220。报警电路300包括闪灯和鸣笛报警。
第一开关电路210包括一个第一MOS管Q1，第一MOS管Q1为P型，第一MOS管Q1的栅极连接至电池100的负极、漏极连接至电池100的正极，源极连接至放电控制电路400。
第二开关电路220包括一个第二MOS管Q2，第二MOS管Q2为P型，第二MOS管Q2的栅极连接至电池100的正极、漏极连接至电池100的负极，源极连接至报警电路300。
报警电路300包括一发光二极管D，一限流电阻R与蜂鸣器H，发光二极管D的负极连接至第二MOS管Q2的栅极，发光二极管D的正极连接至限流电阻R的一端，限流电阻R的另一端连接至第二MOS管Q2的源极。发光二极管D和限流电阻R组成的串联支路与蜂鸣器H并联。
当第二开关电路220选用的P型MOS管的时候，如果选用单片机报警电路，则单片机的Vcc引脚连接至第二MOS管Q2的源极，单片机的Vss引脚连接至电池100的正极，发光二极管D和蜂鸣器H串联后连接至单片机的引脚P1.0和P1.1，单片机用于根据第二开关电路220的开断控制发光二极管D和蜂鸣器H是否开始报警以及报警持续时间。
在电池正接时，一方面，电池正极信号连接至第一MOS管Q1的漏极并通过寄生二极管给到第一MOS管Q1的源极，电池负极信号直接连接至第一MOS管Q1的栅极，因此，在栅极和源极之间会产生压差Vgs1，此时第一MOS管Q1的Vgs1为负值，且小于第一MOS管Q1的开启电压（P型MOS管的开启电压为负值），使得漏极和源极导通（导通后的MOS管相当于一个阻值很小的电阻，加在MOS管上的功耗也很小，效率高，几乎没有发热），进而控制放电控制电路400导通，放电控制电路400控制负载电路500正常工作；另一方面，电池正极信号直接连接至第二MOS管Q2的栅极，因此，在栅极和源极之间会产生压差Vgs2，此时第二MOS管Q2的Vgs2为正值，且大于第二MOS管Q2的开启电压，使得漏极和源极截止，进而控制报警电路300断开，不发出报警信号。
在电池反接时，一方面，电池正极信号直接连接至第一MOS管Q1的栅极，因此，在栅极和源极之间会产生压差Vgs1，此时第一MOS管Q1的Vgs1为正值，且大于第一MOS管Q1的开启电压，使得漏极和源极截止，进而控制放电控制电路400断开，负载电路500不工作；另一方面，电池正极信号连接至第二MOS管Q2的漏极并通过寄生二极管给到第二MOS管Q2的源极，电池负极信号直接连接至第二MOS管Q2的栅极，因此，在栅极和源极之间会产生压差Vgs2，此时第二MOS管Q2的Vgs2为负值，且小于第二MOS管Q2的开启电压，使得漏极和源极导通，进而控制控制报警电路300导通，即发出报警信号，实现闪灯和鸣笛报警。
如图4所示，是本发明电子烟电池反接保护装置第二实施例的电路示意图。
在本发明第二实施例中，包括电池100、开关电路200、报警电路300、放电控制电路400和负载电路500，其中，开关电路200包括第一开关电路210和第二开关电路220。报警电路300包括闪灯报警。
第一开关电路210包括一个第一MOS管Q1，第一MOS管Q1为N型，第一MOS管Q1的栅极连接至电池100的正极、漏极连接至电池100的负极，源极连接至放电控制电路400。
第二开关电路220包括一个第二MOS管Q2，第二MOS管Q2为N型，第二MOS管Q2的栅极连接至电池100的负极、漏极连接至电池100的正极，源极连接至报警电路300。
报警电路300包括一发光二极管D，一限流电阻R与蜂鸣器H，发光二极管D的负极连接至第二MOS管Q2的源极，发光二极管D的正极连接至限流电阻R的一端，限流电阻R的另一端连接至第二MOS管Q2的栅极。
当第二开关电路220选用的N型MOS管的时候，如果选用单片机报警电路，则单片机的Vcc引脚连接至电池100的负极，单片机的Vss引脚连接至第二MOS管Q2的源极，发光二极管D的两端连接至单片机的引脚P1.0和P1.1，单片机用于根据第二开关电路220的开断控制发光二极管D是否开始报警以及报警持续时间。
在电池正接时，一方面，电池正极信号直接连接至第一MOS管Q1的栅极，因此，在栅极和源极之间会产生压差Vgs1，此时第一MOS管Q1的Vgs1为正值，且大于第一MOS管Q1的开启电压，使得漏极和源极导通，进而控制放电控制电路400导通，放电控制电路400控制负载电路500正常工作；另一方面，电池负极信号直接连接至第二MOS管Q2的栅极，因此，在栅极和源极之间会产生压差Vgs2，此时第二MOS管Q2的Vgs2小于第二MOS管Q2的开启电压，使得漏极和源极截止，进而控制报警电路300断开，不发出报警信号。
在电池反接时，一方面，电池负极信号直接连接至第一MOS管Q1的栅极，因此，在栅极和源极之间会产生压差Vgs1，此时第一MOS管Q1的Vgs1小于第一MOS管Q1的开启电压，使得漏极和源极截止，进而控制放电控制电路400断开，负载电路500不工作；另一方面，电池正极信号直接连接至第二MOS管Q2的栅极，因此，在栅极和源极之间会产生压差Vgs2，此时第二MOS管Q2的Vgs2为正值，且大于第二MOS管Q2的开启电压使得漏极和源极导通，进而控制控制报警电路300导通，发出报警信号，实现闪灯报警。
如图5所示，是本发明电子烟电池反接保护装置第三实施例的电路示意图。
在本发明第三实施例中，包括电池100、开关电路200、报警电路300、放电控制电路400和负载电路500，其中，开关电路200包括第一开关电路210和第二开关电路220。报警电路300包括闪灯和鸣笛报警。
第一开关电路210包括一个第一MOS管Q1，第一MOS管Q1为P型，第一MOS管Q1的栅极连接至电池100的负极、漏极连接至电池100的正极，源极连接至放电控制电路400。
第二开关电路220包括一个二极管D1，二极管D1的负极连接至电池100的正极，二极管D1的正极连接到报警电路300。
报警电路300包括一发光二极管D，一限流电阻R与蜂鸣器H，发光二极管D的负极连接至二极管D1的正极，发光二极管D的正极连接至限流电阻R的一端，限流电阻R的另一端连接至电池100的负极。发光二极管D和限流电阻R组成的串联支路与蜂鸣器H并联。
当第二开关电路220选用的二极管D1的时候，如果选用单片机报警电路，则单片机的Vcc引脚连接至电池100的负极，单片机的Vss引脚连接至二极管D1的正极，发光二极管D和蜂鸣器H串联后连接至单片机的引脚P1.0和P1.1，单片机用于根据第二开关电路220的开断控制发光二极管D和蜂鸣器H是否开始报警以及报警持续时间。
在电池正接时，一方面，电池正极信号接至第一MOS管Q1的漏极并通过寄生二极管给到第一MOS管Q1的源极，电池负极信号直接连接至第一MOS管Q1的栅极，因此，在栅极和源极之间会产生压差Vgs1，此时第一MOS管Q1的Vgs1为负值，且小于第一MOS管Q1的开启电压，使得漏极和源极导通，进而控制放电控制电路400导通，放电控制电路400控制负载电路500正常工作；另一方面，二极管D1负极连接至电池100的正极，根据其单向导通性处于截止状态，进而控制报警电路300断开，不发出报警信号。
在电池反接时，一方面，电池正极信号直接连接至第一MOS管Q1的栅极，因此，在栅极和源极之间会产生压差Vgs1，此时第一MOS管Q1的Vgs1为正值，且大于第一MOS管Q1的开启电压，使得漏极和源极截止，进而控制放电控制电路400断开，负载电路500不工作；另一方面，二极管D1负极连接至电池100的负极，根据其单向导通性处于导通状态，进而控制报警电路300导通，发出报警信号，实现闪灯和鸣笛报警。
在本发明第四实施例中，包括电池100、开关电路200、报警电路300、放电控制电路400和负载电路500，其中，开关电路200包括第一开关电路210和第二开关电路220。报警电路300包括一单片机，一发光二极管，实现闪灯报警。
第一开关电路210包括一个第一MOS管Q1，第一MOS管Q1为P型，第一MOS管Q1的栅极连接至电池100的负极、漏极连接至电池100的正极，源极连接至放电控制电路400。
第二开关电路220包括一个第二MOS管Q2，第二MOS管Q2为N型，第二MOS管Q2的栅极连接至电池100的负极、漏极连接至电池100的正极，源极连接至报警电路300。
在电池正接时，一方面，电池正极信号通过寄生二极管给到第一MOS管Q1的源极，电池负极信号直接连接至第一MOS管Q1的栅极，因此，在栅极和源极之间会产生压差Vgs1，此时第一MOS管Q1的Vgs1为负值，且小于第一MOS管Q1的开启电压，使得漏极和源极导通，进而控制放电控制电路400导通，放电控制电路400控制负载电路500正常工作；另一方面，电池负极信号直接连接至第二MOS管Q2的栅极，因此，在栅极和源极之间会产生压差Vgs2，此时第二MOS管Q2的Vgs2小于第二MOS管Q2的开启电压，使得漏极和源极截止，进而控制报警电路300断开，即控制报警电路300中的单片机不工作，不发出报警信号。
在电池反接时，一方面，电池正极信号直接连接至第一MOS管Q1的栅极，因此，在栅极和源极之间会产生压差Vgs1，此时第一MOS管Q1的Vgs1为正值，且大于第一MOS管Q1的开启电压，使得漏极和源极截止，进而控制放电控制电路400断开，负载电路500不工作；另一方面，电池正极信号直接连接至第二MOS管Q2的栅极，因此，在栅极和源极之间会产生压差Vgs2，此时第二MOS管Q2的Vgs2为正值，且大于第二MOS管Q2的开启电压使得漏极和源极导通，进而控制控制报警电路300导通，即控制报警电路300中的单片机开始工作，发出报警信号，实现闪灯报警。
在本发明第五实施例中，包括电池100、开关电路200、报警电路300、放电控制电路400和负载电路500，其中，开关电路200包括第一开关电路210和第二开关电路220。报警电路300包括闪灯报警。
第一开关电路210包括一个第一MOS管Q1，第一MOS管Q1为N型，第一MOS管Q1的栅极连接至电池100的正极、漏极连接至电池100的负极，源极连接至放电控制电路400；
第二开关电路220包括一个第二MOS管Q2，第二MOS管Q2为P型，第二MOS管Q2的栅极连接至电池100的正极、漏极连接至电池100的负极，源极连接至报警电路300。
报警电路300包括一发光二极管D，一限流电阻R，发光二极管D的负极连接至第二MOS管Q2的栅极，发光二极管D的正极连接至限流电阻R的一端，限流电阻R的另一端连接至第二MOS管Q2的源极。
在电池正接时，一方面，电池正极信号直接连接至第一MOS管Q1的栅极，因此，在栅极和源极之间会产生压差Vgs1，此时第一MOS管Q1的Vgs1为正值，且大于第一MOS管Q1的开启电压（N型MOS管的开启电压为正值），使得漏极和源极导通，进而控制放电控制电路400导通，放电控制电路400控制负载电路500正常工作；另一方面，电池正极信号直接连接至第二MOS管Q2的栅极，因此，在栅极和源极之间会产生压差Vgs2，此时第二MOS管Q2的Vgs2为正值，且大于第二MOS管Q2的开启电压，使得漏极和源极截止，进而控制报警电路300断开，不发出报警信号。
在电池反接时，一方面，电池负极信号直接连接至第一MOS管Q1的栅极，因此，在栅极和源极之间会产生压差Vgs1，此时第一MOS管Q1的Vgs1小于第一MOS管Q1的开启电压，使得漏极和源极截止，进而控制放电控制电路400断开，负载电路500不工作；另一方面，电池正极信号连接至第二MOS管Q2的漏极并通过寄生二极管给到第二MOS管Q2的源极，电池负极信号直接连接至第二MOS管Q2的栅极，因此，在栅极和源极之间会产生压差Vgs2，此时第二MOS管Q2的Vgs2为负值，且小于第二MOS管Q2的开启电压，使得漏极和源极导通，进而控制控制报警电路300导通，发出报警信号，实现闪灯报警。
在本发明第六实施例中，包括电池100、开关电路200、报警电路300、放电控制电路400和负载电路500，其中，开关电路200包括第一开关电路210和第二开关电路220。报警电路300包括一单片机、一发光二极管和一蜂鸣器，实现闪灯和鸣笛报警。
第一开关电路210包括一个第一MOS管Q1，第一MOS管Q1为N型，第一MOS管Q1的栅极连接至电池100的正极、漏极连接至电池100的负极，源极连接至放电控制电路400；
第二开关电路220包括一个二极管D1，二极管D1的负极连接至电池100的正极，二极管D1的正极连接到报警电路300。
在电池正接时，一方面，电池正极信号直接连接至第一MOS管Q1的栅极，因此，在栅极和源极之间会产生压差Vgs1，此时第一MOS管Q1的Vgs1为正值，且大于第一MOS管Q1的开启电压，使得漏极和源极导通，进而控制放电控制电路400导通，放电控制电路400控制负载电路500正常工作；另一方面，二极管D1负极连接至电池100的正极，根据其单向导通性处于截止状态，进而控制报警电路300断开，即控制报警电路300中的单片机不工作，不发出报警信号。
在电池反接时，一方面，电池负极信号直接连接至第一MOS管Q1的栅极，因此，在栅极和源极之间会产生压差Vgs1，此时第一MOS管Q1的Vgs1小于第一MOS管Q1的开启电压，使得漏极和源极截止，进而控制放电控制电路400断开，负载电路500不工作；另一方面，二极管D1负极连接至电池100的负极，根据其单向导通性处于导通状态，进而控制报警电路300导通，发出报警信号，实现闪灯和鸣笛报警。
如图6所示，是本发明电实施例的电子烟电池反接保护方法的流程图。本发明实施例的电子烟电池反接保护方法包括如下步骤：
S1、开关电路200检测电池100提供的电源信号；
S2、开关电路200判断电池100是否反接，是，转入步骤S3，否则，转入步骤S4；
S3、放电控制电路400断开，报警电路300导通发出报警信号。
步骤S3具体包括：
S31、第一开关电路210断开，第一开关电路210控制放电控制电路400断开；
S32、第二开关电路220导通，第二开关电路控制报警电路300发出报警信号，报警信号优选的闪灯和鸣笛报警。
S4、安置电池100成功，放电控制电路400控制负载电路500的工作。
本发明通过增加开关电路200和报警电路300，利用开关电路200中的第一MOS管，有效防止可更换电池的电子烟产品及附件因为电池正负反接造成的风险，同时结合报警电路及时提醒使用者，且MOS管满足低功耗、高效率。
上面结合附图对本发明的实施例进行了描述，但是本发明并不局限于上述的具体实施方式，上述的具体实施方式仅仅是示意性的，而不是限制性的，本领域的普通技术人员在本发明的启示下，在不脱离本发明宗旨和权利要求所保护的范围情况下，还可做出很多形式，这些均属于本发明的保护之内。

Claims (1)

1、一种电子烟电池反接保护装置，其特征在于，包括电池、开关电路、报警电路、放电控制电路和负载电路，所述电池连接至所述开关电路，所述开关电路分别连接至所述放电控制电路和所述报警电路，所述放电控制电路连接至所述负载电路；
所述开关电路用于根据检测电池提供的电源信号判断所述电池是否反接，当所述电池反接，所述放电控制电路断开，所述报警电路导通发出报警信号，当所述电池正接，所述放电控制电路控制所述负载电路工作。
2、根据权利要求1所述的电子烟电池反接保护装置，其特征在于，所述开关电路包括第一开关电路和第二开关电路；
所述第一开关电路连接至所述放电控制电路，所述第一开关电路用于通过检测所述电池反接时断开所述放电控制电路；
所述第二开关电路连接至所述报警电路，所述第二开关电路用于通过检测所述电池反接时导通所述报警电路，进而提醒所述电池反接。
3、根据权利要求2所述的电子烟电池反接保护装置，其特征在于，所述第一开关电路包括一第一MOS管，所述第一MOS管为P型MOS管，所述第一MOS管的栅极连接至所述电池的负极、漏极连接至所述电池的正极，源极连接至所述放电控制电路。
4、根据权利要求2所述的电子烟电池反接保护装置，其特征在于，所述第一开关电路包括一第一MOS管，所述第一MOS管为N型MOS管，所述第一MOS管的栅极连接至所述电池的正极、漏极连接至所述电池的负极，源极连接至所述放电控制电路。
5、根据权利要求2所述的电子烟电池反接保护装置，其特征在于，所述第二开关电路包括一第二MOS管，所述第二MOS管为P型MOS管，所述第二MOS管的栅极连接至所述电池的正极、漏极连接至所述电池的负极，源极连接至所述报警电路。
6、根据权利要求2所述的电子烟电池反接保护装置，其特征在于，所述第二开关电路包括一第二MOS管，所述第二MOS管为N型MOS管，所述第二MOS管的栅极连接至所述电池的负极、漏极连接至所述电池的正极，源极连接至所述报警电路。
7、根据权利要求2所述的电子烟电池反接保护装置，其特征在于，所述第二开关电路包括一二极管，所述二极管的负极连接至所述电池的正极，所述二极管正极连接至所述报警电路，所述二极管用于利用其单向导通性来控制所述报警电路是否导通。
8、根据权利要求5所述的电子烟电池反接保护装置，其特征在于，所述报警电路包括一发光二极管和一限流电阻，所述发光二极管的负极接至所述第二MOS管的栅极，所述发光二极管的正极连接至所述限流电阻的一端，所述限流电阻的另一端连接至所述第二MOS管的源极。
9、根据权利要求6所述的电子烟电池反接保护装置，其特征在于，所述报警电路包括一发光二极管和一限流电阻，所述发光二极管的负极连接至所述第二MOS管的源极，所述发光二极管的正极连接至所述限流电阻的一端，所述限流电阻的另一端连接至所述第二MOS管的栅极。
10、根据权利要求7所述的电子烟电池反接保护装置，其特征在于，所述报警电路包括一发光二极管和一限流电阻，所述发光二极管的负极接至所述二极管的正极，所述发光二极管的正极连接至所述限流电阻的一端，所述限流电阻的另一端连接至所述电池的负极。
11、根据权利要求8-10任一所述的电子烟电池反接保护装置，其特征在于，所述报警电路还包括一蜂鸣器，所述发光二极管与所述限流电阻组成的串联支路与所述蜂鸣器并联。
12、一种电子烟电池反接保护方法，其特征在于，所述方法包括以下步骤：
S1、所述开关电路检测所述电池提供的电源信号；
S2、所述开关电路判断所述电池是否反接，是，转入步骤S3，否则，转入步骤S4；
S3、所述放电控制电路断开，所述报警电路导通发出报警信号；
S4、安置电池成功，所述放电控制电路控制所述负载电路的工作。
13、根据权利要求12所述的电子烟电池反接保护的方法，其特征在于，所述步骤S3具体包括：
S31、所述第一开关电路断开，所述第一开关电路控制所述放电控制电路断开；
S32、所述第二开关电路导通，所述第二开关电路控制所述报警电路发出报警信号，所述报警信号包括闪灯和/或鸣笛报警。
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