WO2023045376A1 - 一种充电底座、电子烟及充电方法 - Google Patents

一种充电底座、电子烟及充电方法 Download PDF

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Publication number
WO2023045376A1
WO2023045376A1 PCT/CN2022/095059 CN2022095059W WO2023045376A1 WO 2023045376 A1 WO2023045376 A1 WO 2023045376A1 CN 2022095059 W CN2022095059 W CN 2022095059W WO 2023045376 A1 WO2023045376 A1 WO 2023045376A1
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WIPO (PCT)
Prior art keywords
electrode
mos transistor
voltage
charging
resistor
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PCT/CN2022/095059
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English (en)
French (fr)
Inventor
朱旦
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深圳市吉迩科技有限公司
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Publication of WO2023045376A1 publication Critical patent/WO2023045376A1/zh

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    • 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
    • H02J7/0042—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
    • H02J7/0045—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction concerning the insertion or the connection of the batteries
    • 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
    • A24F40/90—Arrangements or methods specially adapted for charging batteries thereof
    • 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
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/00308—Overvoltage protection
    • 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
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/0034—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using reverse polarity correcting or protecting circuits
    • 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
    • H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the invention relates to the technical field of electronic cigarettes, in particular to a charging base, an electronic cigarette and a charging method.
  • Electronic cigarette is a non-combustible cigarette substitute product, including electronic cigarette body and charging base.
  • the battery and charging base inside the electronic cigarette body have their fixed positive and negative electrodes.
  • the charging base When charging, there is often a situation where the positive and negative poles of the electronic cigarette battery and the positive and negative poles of the charging base are reversely connected. At this time, the charging operation cannot be performed, and the electronic cigarette or the charging base needs to be turned again to change the position of the electrodes. To make the polarity of the electrodes of the two consistent, and then realize the normal charging of the electronic cigarette body, this will reduce the user experience and bring inconvenience to the charging process.
  • the invention provides a charging base, comprising:
  • the first electrode and the second electrode are used to output a charging voltage to the charged device; there is at least a first state and a second state between the first electrode and the second electrode; and
  • a charging circuit connected to the first electrode and the second electrode, for receiving an input voltage, and when the first electrode and the second electrode are in the first state, for converting the input voltage to generate the charging voltage, and switching between the first electrode and the second electrode in the second state between the first electrode and the second electrode and then adjust to the first state, and then convert the input voltage to generate the charging voltage.
  • the first state is: the first electrode is a negative pole, and the second electrode is a positive pole;
  • the second state is: the first electrode is positive, and the ground voltage of the first electrode is lower than the input voltage, and the second electrode is negative.
  • the charging circuit includes:
  • a voltage dividing circuit configured to receive the input voltage, divide the input voltage and output the divided voltage
  • the level output circuit is connected with the voltage dividing circuit, and is used to make the first electrode and the second electrode be positive and negative respectively based on the divided voltage.
  • the charging circuit also includes:
  • the surge protection circuit is connected with the voltage divider circuit and the level output circuit, and is used to absorb the surge and peak generated when the level output circuit is short-circuited instantaneously.
  • the voltage dividing circuit includes: a first resistor, a second resistor, a third resistor, a fourth resistor and a fifth resistor;
  • the first end of the first resistor is connected to the external power supply, and the second end of the first resistor is connected to the first ends of the second resistor and the third resistor;
  • the second end of the second resistor is connected to the level output circuit and the first end of the fifth resistor
  • the second end of the third resistor is connected to the level output circuit and the first end of the fourth resistor
  • Both the second end of the fourth resistor and the second end of the fifth resistor are grounded.
  • the level output circuit includes: a first MOS transistor, a second MOS transistor, a third MOS transistor and a fourth MOS transistor;
  • the gate of the first MOS transistor is connected to the voltage divider circuit and the drain of the second MOS transistor, the source of the first MOS is connected to the external power supply, and the drain of the first MOS transistor The pole is connected to the drain of the third MOS transistor;
  • the gate of the second MOS transistor is connected to the voltage divider circuit and the drain of the first MOS transistor, the source of the second MOS transistor is connected to the external power supply, and the second MOS transistor The drain is connected to the drain of the fourth MOS transistor;
  • the gate of the third MOS transistor is connected to the second electrode, the source of the third MOS transistor is grounded, and the drain of the third MOS transistor is connected to the first electrode;
  • the gate of the fourth MOS transistor is connected to the first electrode, the source of the fourth MOS transistor is grounded, and the drain of the fourth MOS transistor is connected to the second electrode.
  • the surge protection circuit includes: a first diode and a second diode;
  • the anode of the first diode is grounded, and the cathode of the first diode is connected to the drain of the first MOS transistor;
  • the anode of the second diode is grounded, and the cathode of the second diode is connected to the drain of the second MOS transistor.
  • An electronic cigarette comprising: the above-mentioned charging base and an electronic cigarette body.
  • the electronic cigarette body includes: there is a third state between the first electrode and the second electrode;
  • a clamping circuit configured to clamp the voltage between the first electrode and the second electrode when the first electrode and the second electrode are in the third state, so that the first electrode and the second electrode are switched from the third state to the second state;
  • the power supply circuit is connected with the first electrode, the second electrode and the battery inside the electronic cigarette body, and is used to charge the battery with the charging voltage.
  • the third state is: the first electrode is positive, and the ground voltage of the first electrode is the input voltage, and the second electrode is negative.
  • the clamping circuit includes a third diode
  • the anode of the third diode is connected to the cathode of the power supply circuit, and the cathode of the third diode is connected to the anode of the power supply circuit.
  • the power supply circuit includes: an overvoltage protection chip, a fifth MOS transistor, and a sixth MOS transistor;
  • the input end of the overvoltage protection chip is connected to the voltage output by the charging circuit, which is the positive pole of the power supply circuit, and the output end of the overvoltage protection chip is connected to the gate of the fifth MOS transistor;
  • the source of the fifth MOS transistor is grounded, the drain of the fifth MOS transistor is connected to the gate of the sixth MOS transistor; the drain of the sixth MOS transistor is connected to the output of the overvoltage protection chip The terminal is connected, and the source of the sixth MOS transistor is connected to the battery.
  • the first state is: the first electrode is a negative electrode, and the second electrode is a positive electrode;
  • the second state is: the first electrode is positive, and the ground voltage of the first electrode is lower than the input voltage, and the second electrode is negative.
  • the charging circuit includes:
  • a voltage dividing circuit configured to receive the input voltage, divide the input voltage and output the divided voltage
  • the level output circuit is connected with the voltage dividing circuit, and is used to make the first electrode and the second electrode be positive and negative respectively based on the divided voltage.
  • the charging circuit also includes:
  • the surge protection circuit is connected with the voltage divider circuit and the level output circuit, and is used to absorb the surge and peak generated when the level output circuit is short-circuited instantaneously.
  • the voltage dividing circuit includes: a first resistor, a second resistor, a third resistor, a fourth resistor and a fifth resistor;
  • the first end of the first resistor is connected to the external power supply, and the second end of the first resistor is connected to the first end of the second resistor and the third resistor;
  • the second end of the second resistor is connected to the level output circuit and the first end of the fifth resistor
  • the second end of the third resistor is connected to the level output circuit and the first end of the fourth resistor
  • Both the second end of the fourth resistor and the second end of the fifth resistor are grounded.
  • the level output circuit includes: a first MOS transistor, a second MOS transistor, a third MOS transistor and a fourth MOS transistor;
  • the gate of the first MOS transistor is connected to the voltage divider circuit and the drain of the second MOS transistor, the source of the first MOS is connected to the external power supply, and the drain of the first MOS transistor The pole is connected to the drain of the third MOS transistor;
  • the gate of the second MOS transistor is connected to the voltage divider circuit and the drain of the first MOS transistor, the source of the second MOS transistor is connected to the external power supply, and the second MOS transistor The drain is connected to the drain of the fourth MOS transistor;
  • the gate of the third MOS transistor is connected to the second electrode, the source of the third MOS transistor is grounded, and the drain of the third MOS transistor is connected to the first electrode;
  • the gate of the fourth MOS transistor is connected to the first electrode, the source of the fourth MOS transistor is grounded, and the drain of the fourth MOS transistor is connected to the second electrode.
  • the surge protection circuit includes: a first diode and a second diode;
  • the anode of the first diode is grounded, and the cathode of the first diode is connected to the drain of the first MOS transistor;
  • the anode of the second diode is grounded, and the cathode of the second diode is connected to the drain of the second MOS transistor.
  • a charging method comprising:
  • the first electrode and the second electrode of the charging base When the voltage polarity between the first electrode and the second electrode of the charging base is consistent with the voltage polarity of the battery of the charged device, the first electrode and the second electrode of the charging base output the charging voltage to the charged device;
  • the clamping circuit of the charged device lowers the voltage between the first electrode and the second electrode.
  • the charging circuit of the charging base converts the voltage of the first electrode and the second electrode to adjust the voltage polarity between the first electrode and the second electrode of the charging base and the charged device.
  • the polarity of the voltage between the positive pole and the negative pole of the charging base is the same, and then the first electrode and the second electrode of the charging base output the charging voltage to the charged device.
  • the charging method further includes:
  • the indicator light is turned off to indicate that the charged device is not being charged.
  • the charging circuit may Converting the electrode polarity of the first electrode and the second electrode to be consistent with the electrode polarity of the charged device, so that the first electrode and the second electrode convert the input voltage to generate the charged device
  • the charging voltage required by the charging device Normal charging of the charged device can be realized without re-rotating the charged device or the charging base and without changing the positions of the electrodes.
  • Fig. 1 is a block diagram of a charging base in an embodiment
  • Fig. 2 is a circuit diagram of the charging base in one embodiment
  • Fig. 3 is a block diagram of an electronic cigarette in an embodiment
  • Fig. 4 is a circuit diagram of the main body of the electronic cigarette in one embodiment.
  • the invention provides a charging base.
  • the charged device is an electronic cigarette or other electronic products.
  • the electronic cigarette has an electronic cigarette body and a charging base for charging the electronic cigarette body.
  • the charging base is connected to an external power source to realize charging for the electronic cigarette body. ;
  • both the battery and the charging base inside the electronic cigarette body have their fixed positive and negative poles. If the negative pole is reversed, the charging operation cannot be carried out at this time. It is necessary to re-adjust the electrode direction of the electronic cigarette or the charging base to make the electrodes of the two consistent, and then realize the normal charging of the electronic cigarette body, which will reduce the user experience. Inconvenience to the charging process.
  • Fig. 1 is a block diagram of a charging base in an embodiment, referring to Fig. 1, the charging base includes: a first electrode RELAY_A, a second electrode RELAY_B and a charging circuit 100; the first electrode RELAY_A and the second electrode RELAY_B are used for Outputting a charging voltage to the charged device; having at least a first state and a second state between the first electrode RELAY_A and the second electrode RELAY_B; and
  • the charging circuit 100 is connected to the first electrode RELAY_A and the second electrode RELAY_B, is connected to an external power source to access the input voltage, and is connected between the first electrode RELAY_A and the second electrode RELAY_B.
  • the input voltage is converted to generate the charging voltage
  • the second state between the first electrode RELAY_A and the second electrode RELAY_B adjusting the gap between the first electrode RELAY_A and the second electrode RELAY_B to the first state, and then converting the input voltage to generate the charging voltage.
  • the first state is: the first electrode RELAY_A is negative, and the second electrode RELAY_B is positive; the second state is: the first electrode RELAY_A is positive, and the The ground voltage of the first electrode RELAY_A is lower than the input voltage, and the second electrode RELAY_B is negative.
  • the input voltage of the charging circuit 100 connected to an external power supply is 4.2V.
  • the first electrode RELAY_A is negative
  • the second electrode RELAY_B is positive; at the same time, when the charged device needs When charging, its negative pole is connected to the first electrode RELAY_A, and its positive pole is connected to the second electrode RELAY_B.
  • the positive pole and negative pole of the charged device are normally connected to the positive pole and negative pole of the charging base.
  • the charging The circuit 100 converts the input voltage into the charging voltage required by the charging device to charge it.
  • the first electrode RELAY_A When the first electrode RELAY_A is positive, the second electrode RELAY_B is negative, and the ground voltage of the first electrode RELAY_A is much lower than the input voltage 4.2V; at the same time, when the charged device needs to be charged, Its negative pole is connected to the first electrode RELAY_A, and its positive pole is connected to the second electrode RELAY_B. At this time, the positive pole and negative pole of the charged device are reversely connected to the positive pole and negative pole of the charging base.
  • the charging circuit 100 can connect the The voltage of the first electrode RELAY_A is pulled down to 0V, and the voltage of the second electrode RELAY_B is pulled up to 4.2V to realize the conversion of the positive pole and the negative pole of the charging base, so that when the charged device is charging, it will be charged
  • the polarity of the first electrode RELAY_A and the second electrode RELAY_B of the base corresponds to the polarity of the charging device, so as to charge the charging device normally.
  • the charging circuit 100 includes: a voltage divider circuit, a level output circuit and a surge protection circuit; the voltage divider circuit is used to receive the input voltage and divide the input voltage And output the divided voltage.
  • the level output circuit is connected to the voltage dividing circuit, and is used to make the first electrode RELAY_A and the second electrode RELAY_B respectively positive and negative based on the divided voltage.
  • the surge protection circuit is connected with the voltage divider circuit and the level output circuit, and is used for absorbing the surge and peak generated when the level output circuit is short-circuited momentarily.
  • the voltage dividing circuit includes: a first resistor F1, a second resistor R1, a third resistor R2, a fourth resistor R8, and a fifth resistor R9; the first resistor of the first resistor F1 end is connected with the external power supply, the second end of the first resistor F1 is connected with the first end of the second resistor R1 and the third resistor R2; the second end of the second resistor R1 is connected with the The level output circuit is connected to the first end of the fifth resistor R9; the second end of the third resistor R2 is connected to the level output circuit and the first end of the fourth resistor R8; the Both the second end of the fourth resistor R8 and the second end of the fifth resistor R9 are grounded.
  • the level output circuit includes: a first MOS transistor Q1, a second MOS transistor Q2, a third MOS transistor Q5, and a fourth MOS transistor Q6; here, the first MOS transistor Q1 and the second MOS transistor Q2 are P -MOS transistors, the third MOS transistor Q5 and the fourth MOS transistor Q6 are N-MOS transistors; the gate of the first MOS transistor Q1 is connected to the voltage divider circuit and the second MOS transistor Q2 The drain is connected, the source of the first MOS transistor Q1 is connected to the external power supply, the drain of the first MOS transistor Q1 is connected to the drain of the third MOS transistor Q5; the second MOS transistor The gate of Q2 is connected to the voltage divider circuit and the drain of the first MOS transistor Q1, the source of the second MOS transistor Q2 is connected to the external power supply, and the drain of the second MOS transistor Q2 connected to the drain of the fourth MOS transistor Q6; the gate of the third MOS transistor Q5 is connected to the second electrode RELAY_B,
  • the surge protection circuit includes: a first diode D3 and a second diode D4; the anode of the first diode D3 is grounded, and the cathode of the first diode D3 is connected to the first MOS
  • the drain of the transistor Q1 is connected, the anode of the second diode D4 is connected to the ground, and the cathode of the second diode D4 is connected to the drain of the second MOS transistor Q2.
  • the present invention also provides an electronic cigarette, as shown in FIG. 3 , comprising: the above-mentioned charging base and the electronic cigarette body; there is a third state between the first electrode and the second electrode; the electronic cigarette
  • the cigarette body includes: a clamping circuit 200 and a power supply circuit 300; the clamping circuit 200 is used to control the first electrode RELAY_A and the second electrode RELAY_B in the third state.
  • the voltage between the electrode RELAY_A and the second electrode RELAY_B is clamped, so that the first electrode RELAY_A and the second electrode RELAY_B are switched from the third state to the second state; the power supply circuit 300 is connected with the first electrode RELAY_A, the second electrode RELAY_B and the battery located in the electronic cigarette body, and is used to charge the battery with the charging voltage.
  • the third state is: the first electrode RELAY_A is positive, and the ground voltage of the first electrode RELAY_A is the input voltage (4.2V), and the second electrode RELAY_B is negative. Meanwhile, as shown in FIG.
  • the clamping circuit 200 includes a third diode D2; the anode of the third diode D2 is connected to the negative pole PGND of the power supply circuit 300, and the third diode The cathode of D2 is connected to the anode VBAT_IN of the power supply circuit 300 .
  • the polarity switching principle of the first electrode RELAY_A and the second electrode RELAY_B will be described in detail as follows:
  • the first MOS transistor Q1 and the second MOS transistor Q2 in the charging circuit 100 in the charging base are There will be deviations in the respective capacitances during the process.
  • the first MOS transistor Q1 is smaller and it is turned on preferentially; the first MOS transistor Q1
  • the first electrode RELAY_A connected to the drain of the transistor Q1 is positive, the ground voltage of the first electrode RELAY_A is the input voltage (4.2V), the drain of the second MOS transistor Q2 is connected to the
  • the second electrode RELAY_B is negative, that is, the first electrode RELAY_A and the second electrode RELAY_B are in the third state; at this time, if the negative electrode PGND of the electronic cigarette body is connected to the first electrode RELAY_A, the electronic cigarette If the anode VBAT_IN of the body is connected to the second electrode RELAY_B, then the clamp circuit 200 in the electronic cigarette body, that is, the third diode D2 is equivalent to connecting the first electrode RELAY_A and the second electrode in series.
  • the cut-off voltage of the third diode D2 in the present invention is 0.3V, then the ground of the first electrode RELAY_A at this time The voltage is instantly pulled down from 4.2V to 0.3V. It can be seen from FIG. 2 that the gate voltage of the second MOS transistor Q2 is the ground voltage (0.3V) of the first electrode RELAY_A at this time, because the first The voltage of the source of the second MOS transistor Q2 is the input voltage (4.2V).
  • the second MOS transistor Q2 is a P-MOS transistor, the voltage of the grid is smaller than the voltage of the source, and the second MOS transistor Q2 is turned on, then, at this time, the drain voltage of the second MOS transistor Q2 is the input voltage (4.2V) due to the gate of the first MOS transistor Q1 and the second MOS transistor Q2
  • the drain of the first MOS transistor Q1 is connected to the gate, the voltage of the gate of the first MOS transistor Q1 is the input voltage (4.2V), because the voltage of the source of the first MOS transistor Q1 is also the input voltage (4.2V ), the first MOS transistor Q1 is turned off; and because the drain of the second MOS transistor Q2 is connected to the second electrode RELAY_B, the voltage of the second electrode RELAY_B is also the input voltage (4.2 V), so that the second electrode RELAY_B is converted from a negative electrode to a positive electrode.
  • the voltage of the gate of the third MOS transistor Q5 is the input voltage (4.2V).
  • the source of the transistor Q5 is grounded, and the third MOS transistor Q5 is an N-MOS transistor, and its gate voltage is greater than the source voltage, then the third MOS transistor Q5 is turned on, and the drain of the third MOS transistor Q5 If the polarity is grounded, the first electrode RELAY_A is also grounded, realizing the process of converting the first electrode RELAY_A from positive to negative.
  • the first electrode RELAY_A is converted from positive to negative
  • the second electrode RELAY_B is converted from negative to positive. At this time, it is connected to the positive and negative of the connected electronic cigarette body to realize normal charging.
  • the power supply circuit 300 includes: an overvoltage protection chip U1, a fifth MOS transistor Q3, a sixth MOS transistor Q4, a capacitor C1, and a transient suppression diode D1;
  • the fifth MOS transistor Q3 is a P-MOS transistor, and the sixth MOS transistor Q4 is an N-MOS transistor;
  • the input terminal of the overvoltage protection chip U1 is connected to the voltage output by the charging circuit 100, which is the positive pole VBAT_IN of the power supply circuit 300, so
  • the output end of the overvoltage protection chip U1 is connected to the gate of the fifth MOS transistor Q3; the source of the fifth MOS transistor Q3 is grounded, and the drain of the fifth MOS transistor Q3 is connected to the sixth MOS transistor Q3
  • the gate of the transistor Q4 is connected; the drain of the sixth MOS transistor Q4 is connected to the output terminal of the overvoltage protection chip U1, and the source of the sixth MOS transistor Q4 is connected to the battery; the capacitor C1 is connected to Between the gate of
  • the sixth MOS transistor Q4 when the battery of the electronic cigarette body is normally charged through the charging base, since the gate of the sixth MOS transistor Q4 is connected to the positive pole VBAT_IN of the power supply circuit 300, the sixth MOS transistor Q4 If the source of the sixth MOS transistor Q4 is turned on, then the drain of the sixth MOS transistor Q4 is grounded, that is, the gate of the fifth MOS transistor Q3 is grounded, because the fifth MOS transistor Q3 The source of the tube Q3 is connected to the battery of the electronic cigarette body, then the tertiary voltage of the fifth MOS tube Q3 is lower than the source voltage, then the source of the fifth MOS tube Q3 is turned on, and the power supply circuit
  • the positive pole VBAT_IN of 300 is connected to the charging voltage of the charging circuit, and is transmitted to the input terminal VBAT1 of the battery through the fifth MOS transistor Q3 for charging.
  • the overvoltage protection chip U1 can prevent the power supply circuit 300 from being damaged when the external voltage is too high; the transient suppression diode D1 can absorb the surge peak generated by the power supply circuit 300 at the moment of charging through the charging circuit, and improve Product reliability: the capacitor C1 prevents the voltage in the charging circuit from containing interference, and avoids the interference causing the sixth MOS transistor Q4 to be mis-conducted, thereby causing the fifth MOS transistor Q3 to be mis-conducted to indicate that the indicator light is on Or the voltage of the node CE that is off is always high (the indicator light is set on the electronic cigarette body to indicate whether the electronic cigarette body is charged), so that the indicator light is always on, and the electronic cigarette body is mistakenly indicated as being in a charging state The phenomenon.
  • a charging method comprising:
  • the first electrode RELAY_A and the second electrode RELAY_B of the charging base When the voltage polarity between the first electrode RELAY_A and the second electrode RELAY_B of the charging base is consistent with the voltage polarity of the battery of the charged device, the first electrode RELAY_A and the second electrode RELAY_B of the charging base output the charging voltage to the charged device device; the device to be charged here is the electronic cigarette.
  • the clamping circuit 200 of the charged device lowers the voltage polarity between the first electrode RELAY_A and the second electrode RELAY_B.
  • the voltage between the second electrode RELAY_B, and then the charging circuit 100 of the charging base converts the voltages of the first electrode RELAY_A and the second electrode RELAY_B to adjust the first electrode RELAY_A and the second electrode RELAY_B of the charging base
  • the polarity of the voltage between them is consistent with the polarity of the voltage between the positive pole and the negative pole of the charged device, and then the first electrode RELAY_A and the second electrode RELAY_B of the charging base output the charging voltage to the charged device.
  • the charging method further includes:
  • the node voltage of the charged device is collected by the single-chip microcomputer, and the voltage of the battery of the electronic cigarette body is collected by the single-chip computer through AD sampling.
  • the charged device is the electronic cigarette body
  • the node voltage is the electronic cigarette body.
  • the voltage of the node CE in the power supply circuit compare the voltage of the node CE with the preset voltage, the preset voltage is 0.7 times the battery voltage, that is, when the voltage of the node CE is greater than 0.7 times
  • the single-chip microcomputer controls the indicator light to light up to indicate that the e-cigarette body is being charged;
  • the indicator light is turned off to indicate that the charged device is not being charged.

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  • Power Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

本发明公开了一种充电底座，包括：充电电路（100）和与其连接的第一电极（RELAY_A）和第二电极（RELAY_B），第一电极（RELAY_A）和第二电极（RELAY_B）用于输出充电电压给被充电设备；充电电路（100）用于接收输入电压，在第一电极（RELAY_A）和第二电极（RELAY_B）之间处于第一状态的情况下，对输入电压进行变换产生充电电压，及在第一电极（RELAY_A）和第二电极（RELAY_B）之间处于第二状态的情况下，将第一电极（RELAY_A）和第二电极（RELAY_A）之间调整为第一状态，后对输入电压进行变换产生充电电压。当被充电设备通过充电电路（100）进行充电时，充电电路（100）将第一电极（RELAY_A）和第二电极（RELAY_B）的电极极性转换成与被充电设备的电极极性一致，以使第一电极（RELAY_A）和第二电极（RELAY_A）对输入电压进行变换产生充电电压。不需重新转动被充电设备或充电底座，无需改变电极的位置，即可实现对被充电设备的正常充电。

Description

一种充电底座、电子烟及充电方法 技术领域
本发明涉及电子烟技术领域，尤其涉及一种充电底座、电子烟及充电方法。
背景技术
电子烟是一种非燃烧的烟类替代型产品，包括电子烟本体和充电底座，现有技术中，电子烟本体内部的电池和充电底座均具有其固定的正极和负极，当在通过充电底座进行充电时，往往会存在电子烟的电池的正极和负极与充电底座的正极和负极反接的情况，这时候就无法进行充电作业，需要重新转动电子烟或者充电底座，以改变电极的位置，来使二者的电极极性一致，进而实现对电子烟本体的正常充电，这样就会降低使用体验感，给充电过程带来不便。
发明内容
基于此，有必要针对上述问题，提出了一种充电底座。
本发明提供一种充电底座，包括：
第一电极和第二电极，用于输出充电电压给所述被充电设备；所述第一电极和所述第二电极之间至少具备第一状态和第二状态；和
充电电路，与所述第一电极和所述第二电极相连接，用于接收输入电压，并在所述第一电极和所述第二电极之间处于所述第一状态的情况下，对所述输入电压进行变换产生所述充电电压，以及在所述第一电极和所述第二电极之间处于所述第二状态的情况下，将所述第一电极和所述第二电极之间调整为所述第一状态，之后对所述输入电压进行变换产生所述充电电压。
在一个实施例中，所述第一状态为：所述第一电极为负极，所述第二电 极为正极；
所述第二状态为：所述第一电极为正极，且所述第一电极的对地电压小于所述输入电压，所述第二电极为负极。
在一个实施例中，所述充电电路包括：
分压电路，用于接收所述输入电压，并将所述输入电压进行分压并输出分压电压；和
电平输出电路，与所述分压电路相连接，用于基于所述分压电压，使所述第一电极和所述第二电极分别为正极和负极。
在一个实施例中，所述充电电路还包括：
浪涌保护电路，与所述分压电路和所述电平输出电路连接，用于吸收所述电平输出电路瞬间短路时产生的浪涌及尖峰。
在一个实施例中，所述分压电路包括：第一电阻、第二电阻、第三电阻、第四电阻和第五电阻；
所述第一电阻的第一端与所述外部电源连接，所述第一电阻的第二端与所述第二电阻和所述第三电阻的第一端连接；
所述第二电阻的第二端与所述电平输出电路和所述第五电阻的第一端连接；
所述第三电阻的第二端与所述电平输出电路和所述第四电阻的第一端连接；
所述第四电阻的第二端和所述第五电阻的第二端均接地。
在一个实施例中，所述电平输出电路包括：第一MOS管、第二MOS管、第三MOS管和第四MOS管；
所述第一MOS管的栅极与所述分压电路和所述第二MOS管的漏极连接，所述第一MOS的源极与所述外部电源连接，所述第一MOS管的漏极与所述 第三MOS管的漏极连接；
所述第二MOS管的栅极与所述分压电路和所述第一MOS管的漏极连接，所述第二MOS管的源极与所述外部电源连接，所述第二MOS管的漏极与所述第四MOS管的漏极连接；
所述第三MOS管的栅极与所述第二电极连接，所述第三MOS管的源极接地，所述第三MOS管的漏极与所述第一电极连接；
所述第四MOS管的栅极与所述第一电极连接，所述第四MOS管的源极接地，所述第四MOS管的漏极所述第二电极连接。
在一个实施例中，所述浪涌保护电路包括：第一二极管和第二二极管；
所述第一二极管的阳极接地，所述第一二极管的阴极与所述第一MOS管的漏极连接；
所述第二二极管的阳极接地，所述第二二极管的阴极与所述第二MOS管的漏极连接。
一种电子烟，包括：如上所述的充电底座和电子烟本体。
在一个实施例中，所述电子烟本体包括：所述第一电极和所述第二电极之间还具有第三状态；
钳位电路，用于在所述第一电极和所述第二电极处于所述第三状态的情况下，对所述第一电极和所述第二电极之间的电压进行钳位，以使所述第一电极和所述第二电极由所述第三状态切换为所述第二状态；
供电电路，与所述第一电极、第二电极和位于所述电子烟本体内的电池连接，用于利用所述充电电压向所述电池充电。
在一个实施例中，所述第三状态为：所述第一电极为正极，且所述第一电极的对地电压为所述输入电压，所述第二电极为负极。
在一个实施例中，所述钳位电路包括第三二极管；
所述第三二极管的阳极与所述供电电路的负极连接，所述第三二极管的阴极与所述供电电路的正极连接。
在一个实施例中，所述供电电路包括：过压保护芯片、第五MOS管和第六MOS管；
所述过压保护芯片的输入端接入所述充电电路输出的电压，为所述供电电路的正极，所述过压保护芯片的输出端与所述第五MOS管的栅极连接；
所述第五MOS管的源极接地，所述第五MOS管的漏极与所述第六MOS管的栅极连接；所述第六MOS管的漏极与所述过压保护芯片的输出端连接，所述第六MOS管的源极与电池连接。
在一个实施例中，所述第一状态为：所述第一电极为负极，所述第二电极为正极；
所述第二状态为：所述第一电极为正极，且所述第一电极的对地电压小于所述输入电压，所述第二电极为负极。
在一个实施例中，所述充电电路包括：
分压电路，用于接收所述输入电压，并将所述输入电压进行分压并输出分压电压；和
电平输出电路，与所述分压电路相连接，用于基于所述分压电压，使所述第一电极和所述第二电极分别为正极和负极。
在一个实施例中，所述充电电路还包括：
浪涌保护电路，与所述分压电路和所述电平输出电路连接，用于吸收所述电平输出电路瞬间短路时产生的浪涌及尖峰。
在一个实施例中，所述分压电路包括：第一电阻、第二电阻、第三电阻、第四电阻和第五电阻；
所述第一电阻的第一端与所述外部电源连接，所述第一电阻的第二端与 所述第二电阻和所述第三电阻的第一端连接；
所述第二电阻的第二端与所述电平输出电路和所述第五电阻的第一端连接；
所述第三电阻的第二端与所述电平输出电路和所述第四电阻的第一端连接；
所述第四电阻的第二端和所述第五电阻的第二端均接地。
在一个实施例中，所述电平输出电路包括：第一MOS管、第二MOS管、第三MOS管和第四MOS管；
所述第一MOS管的栅极与所述分压电路和所述第二MOS管的漏极连接，所述第一MOS的源极与所述外部电源连接，所述第一MOS管的漏极与所述第三MOS管的漏极连接；
所述第二MOS管的栅极与所述分压电路和所述第一MOS管的漏极连接，所述第二MOS管的源极与所述外部电源连接，所述第二MOS管的漏极与所述第四MOS管的漏极连接；
所述第三MOS管的栅极与所述第二电极连接，所述第三MOS管的源极接地，所述第三MOS管的漏极与所述第一电极连接；
所述第四MOS管的栅极与所述第一电极连接，所述第四MOS管的源极接地，所述第四MOS管的漏极所述第二电极连接。
在一个实施例中，所述浪涌保护电路包括：第一二极管和第二二极管；
所述第一二极管的阳极接地，所述第一二极管的阴极与所述第一MOS管的漏极连接；
所述第二二极管的阳极接地，所述第二二极管的阴极与所述第二MOS管的漏极连接。
一种充电方法，包括：
当充电底座的第一电极和第二电极之间的电压极性与被充电设备的电池的电压极性一致时，充电底座的第一电极和第二电极输出充电电压给被充电设备；
当充电底座的第一电极和第二电极之间的电压极性与所述电池的电压极性不一致时，所述被充电设备的钳位电路降低所述第一电极和所述第二电极之间的电压，之后充电底座的充电电路将所述第一电极和所述第二电极的电压进行转换处理，以调整充电底座的第一电极和第二电极之间的电压极性与被充电设备的正极和负极之间的电压极性一致，然后充电底座的第一电极和第二电极输出充电电压给被充电设备。
在一个实施例中，在所述充电底座的第一电极和第二电极之间的电压极性与所述被充电设备的电池的电压极性一致后，所述充电方法还包括：
采集所述被充电设备的节点电压，与预设电压进行比较，若所述节点电压大于所述预设电压，则点亮所述被充电设备上的指示灯，以提示所述被充电设备正在通过所述充电底座充电；
若所述节点电压小于所述预设电压，则关闭指示灯，以提示所述被充电设备未进行充电。
实施本发明实施例，将具有如下有益效果：
当被充电设备通过充电底座的充电电路进行充电时，与所述充电电路连接的所述第一电极和所述第二电极的电极极性与被充电设备的电极极性不一致时，充电电路可以将所述第一电极和所述第二电极的电极极性转换成与被充电设备的电极极性一致，以使所述第一电极和所述第二电极对输入电压进行变换产生所述被充电设备所需的充电电压。不需要重新转动被充电设备或者充电底座，以及无需改变电极的位置，即可实现对被充电设备的正常充电。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
其中：
图1为一个实施例中充电底座的框图；
图2为一个实施例中充电底座的电路图；
图3为一个实施例中电子烟的框图；
图4为一个实施例中电子烟本体的电路图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
本发明提供一种充电底座，被充电设备为电子烟或其他的电子产品领域，电子烟具有电子烟本体和给电子烟本体充电的充电底座，充电底座与外部电源连接以实现为电子烟本体充电；现有技术中，电子烟本体内部的电池和充电底座均具有其固定的正极和负极，当在通过充电底座进行充电时，往往会存在电子烟的电池的正极和负极与充电底座的正极和负极反接的情况，这时候就无法进行充电作业，需要重新调整电子烟或者充电底座的电极方向，来使二者的电极一致，进而实现对电子烟本体的正常充电，这样就会降低使用体验感，给充电过程带来不便。
图1为一个实施例中充电底座的框图，参照图1，充电底座包括：第一电极RELAY_A、第二电极RELAY_B和充电电路100；所述第一电极RELAY_A 和所述第二电极RELAY_B，用于输出充电电压给所述被充电设备；所述第一电极RELAY_A和所述第二电极RELAY_B之间至少具备第一状态和第二状态；和
所述充电电路100与所述第一电极RELAY_A和所述第二电极RELAY_B相连接，与外部电源连接以接入所述输入电压，并在所述第一电极RELAY_A和所述第二电极RELAY_B之间处于所述第一状态的情况下，对所述输入电压进行变换产生所述充电电压，以及在所述第一电极RELAY_A和所述第二电极RELAY_B之间处于所述第二状态的情况下，将所述第一电极RELAY_A和所述第二电极RELAY_B之间调整为所述第一状态，之后对所述输入电压进行变换产生所述充电电压。
在一个实施例中，所述第一状态为：所述第一电极RELAY_A为负极，所述第二电极RELAY_B为正极；所述第二状态为：所述第一电极RELAY_A为正极，且所述第一电极RELAY_A的对地电压小于所述输入电压，所述第二电极RELAY_B为负极。
具体的，这里以所述充电电路100接入外部电源后的输入电压为4.2V为例，当所述第一电极RELAY_A为负极，所述第二电极RELAY_B为正极；同时，当被充电设备需要充电时，其负极与所述第一电极RELAY_A连接，其正极与所述第二电极RELAY_B连接，这时被充电设备的正极和负极与充电底座的正极和负极正常接通，那么，所述充电电路100将输入的电压装换为所述充电设备所需的所述充电电压，以为其充电。
当所述第一电极RELAY_A为正极，所述第二电极RELAY_B为负极，并且所述第一电极RELAY_A的对地电压远小于所述输入电压4.2V时；同时，当被充电设备需要充电时，其负极与所述第一电极RELAY_A连接，其正极与所述第二电极RELAY_B连接，这时被充电设备的正极和负极与充电底座 的正极和负极反接了，所述充电电路100可以把所述第一电极RELAY_A的电压拉低至0V，把所述第二电极RELAY_B的电压拉高至4.2V，以实现上述充电底座的正极与负极的转换，使所述被充电设备在充电时，充电底座的所述第一电极RELAY_A和所述第二电极RELAY_B的极性与所述充电设备的极性对应，以为所述充电设备正常充电。
在一个实施例中，所述充电电路100包括：分压电路、电平输出电路和浪涌保护电路；所述分压电路，用于接收所述输入电压，并将所述输入电压进行分压并输出分压电压。所述电平输出电路，与所述分压电路相连接，用于基于所述分压电压，使所述第一电极RELAY_A和所述第二电极RELAY_B分别为正极和负极。所述浪涌保护电路，与所述分压电路和所述电平输出电路连接，用于吸收所述电平输出电路瞬间短路时产生的浪涌及尖峰。
具体的，如图2所示，所述分压电路包括：第一电阻F1、第二电阻R1、第三电阻R2、第四电阻R8和第五电阻R9；所述第一电阻F1的第一端与所述外部电源连接，所述第一电阻F1的第二端与所述第二电阻R1和所述第三电阻R2的第一端连接；所述第二电阻R1的第二端与所述电平输出电路和所述第五电阻R9的第一端连接；所述第三电阻R2的第二端与所述电平输出电路和所述第四电阻R8的第一端连接；所述第四电阻R8的第二端和所述第五电阻R9的第二端均接地。
所述电平输出电路包括：第一MOS管Q1、第二MOS管Q2、第三MOS管Q5和第四MOS管Q6；这里所述第一MOS管Q1和所述第二MOS管Q2为P-MOS管，所述第三MOS管Q5和所述第四MOS管Q6为N-MOS管；所述第一MOS管Q1的栅极与所述分压电路和所述第二MOS管Q2的漏极连接，所述第一MOS管Q1的源极与所述外部电源连接，所述第一MOS管Q1的漏极与所述第三MOS管Q5的漏极连接；所述第二MOS管Q2的栅极与所 述分压电路和所述第一MOS管Q1的漏极连接，所述第二MOS管Q2的源极与所述外部电源连接，所述第二MOS管Q2的漏极与所述第四MOS管Q6的漏极连接；所述第三MOS管Q5的栅极与所述第二电极RELAY_B连接，所述第三MOS管Q5的源极接地，所述第三MOS管Q5的漏极与所述第一电极RELAY_A连接；所述第四MOS管Q6的栅极与所述第一电极RELAY_A连接，所述第四MOS管Q6的源极接地，所述第四MOS管Q6的漏极所述第二电极RELAY_B连接。
所述浪涌保护电路包括：第一二极管D3和第二二极管D4；所述第一二极管D3的阳极接地，所述第一二极管D3的阴极与所述第一MOS管Q1的漏极连接，所述第二二极管D4的阳极接地，所述第二二极管D4的阴极与所述第二MOS管Q2的漏极连接。
本发明还提供一种电子烟，如图3所示，包括：如上所述的充电底座和电子烟本体；所述第一电极和所述第二电极之间还具有第三状态；所述电子烟本体包括：钳位电路200和供电电路300；所述钳位电路200用于在所述第一电极RELAY_A和所述第二电极RELAY_B处于所述第三状态的情况下，对所述第一电极RELAY_A和所述第二电极RELAY_B之间的电压进行钳位，以使所述第一电极RELAY_A和所述第二电极RELAY_B由所述第三状态切换为所述第二状态；所述供电电路300与所述第一电极RELAY_A、第二电极RELAY_B和位于所述电子烟本体内的电池连接，用于利用所述充电电压向所述电池充电。
其中，基于在前述中对所述充电底座的描述，可知所述第一电极RELAY_A和所述第二电极RELAY_B之间存在第一状态和第二状态，那么还存在第三状态，这里的第三状态为：所述第一电极RELAY_A为正极，且所述第一电极RELAY_A的对地电压为所述输入电压(4.2V)，所述第二电极 RELAY_B为负极。同时，如图4所示，所述钳位电路200包括第三二极管D2；所述第三二极管D2的阳极与所述供电电路300的负极PGND连接，所述第三二极管D2的阴极与所述供电电路300的正极VBAT_IN连接。
结合前述充电底座的电路结构以及所述第一电极RELAY_A和所述第二电极RELAY_B之间存在的第一状态、第二状态和第三状态，以及本实施例中的被充电设备为电子烟本体的情况下，对所述第一电极RELAY_A和所述第二电极RELAY_B的极性转换原理进行详细说明，具体如下：
在所述充电底座连接外部电源后，且未对所述电子烟本体进行充电时，参考图2，充电底座中的充电电路100中的第一MOS管Q1和第二MOS管Q2由于其生产制作过程中各自的电容会存在偏差，若以第一MOS管Q1的电容小于所述第二MOS管Q2的电容为例，那么第一MOS管Q1较小，其优先导通；所述第一MOS管Q1的漏极连接的所述第一电极RELAY_A为正极，所述第一电极RELAY_A的对地电压为所述输入电压(4.2V)，所述第二MOS管Q2的漏极连接的所述第二电极RELAY_B为负极，也即所述第一电极RELAY_A和所述第二电极RELAY_B处于所述第三状态；此时，若电子烟本体的负极PGND与所述第一电极RELAY_A连接，电子烟本体的正极VBAT_IN与所述第二电极RELAY_B连接的话，那么电子烟本体中的钳位电路200也即所述第三二极管D2相当于串联在所述第一电极RELAY_A和所述第二电极RELAY_B之间，由于所述第三二极管D2的截止电压较小，本发明中所述第三二极管D2的截止电压为0.3V，则此时的所述第一电极RELAY_A的对地电压瞬间从4.2V被拉低至0.3V，从图2中可知所述第二MOS管Q2的栅极的电压即为此时第一电极RELAY_A的对地电压(0.3V)，因为所述第二MOS管Q2的源极的电压为所述输入电压(4.2V)，由于所述第二MOS管Q2为P-MOS管，其栅极的电压比源极的电压小，则所述第二MOS管Q2导通， 那么，此时所述第二MOS管Q2的漏极电压即为所述输入电压(4.2V)由于所述第一MOS管Q1的栅极与所述第二MOS管Q2的漏极连接，则所述第一MOS管Q1的栅极的电压为所述输入电压(4.2V)，因为所述第一MOS管Q1的源极的电压也为所述输入电压(4.2V)，则所述第一MOS管Q1关断；又因为所述第二MOS管Q2的漏极与所述第二电极RELAY_B连接，那么所述第二电极RELAY_B的电压也为是输入电压(4.2V)，使得所述第二电极RELAY_B由负极转化为正极。
同时由于所述第三MOS管Q5的栅极与所述第二电极RELAY_B连接，那么所述第三MOS管Q5的栅极的电压为所述输入电压(4.2V)，由于所述第三MOS管Q5的源极接地，且所述第三MOS管Q5为N-MOS管，其栅极电压大于源极电压，则所述第三MOS管Q5导通，所述第三MOS管Q5的漏极接地，则所述第一电极RELAY_A也接地，实现了所述第一电极RELAY_A由正极转化为负极的过程。
在以上过程中，所述第一电极RELAY_A由正极转化为负极，所述第二电极RELAY_B由负极转化为正极，此时与接入的电子烟本体的正极和负极对应连接，实现正常充电。
在一个实施例中，如图4所示，所述供电电路300包括：过压保护芯片U1、第五MOS管Q3、第六MOS管Q4、电容C1及瞬态抑制二极管D1；第五MOS管Q3为P-MOS管，第六MOS管Q4为N-MOS管；所述过压保护芯片U1的输入端接入所述充电电路100输出的电压，为所述供电电路300的正极VBAT_IN，所述过压保护芯片U1的输出端与所述第五MOS管Q3的栅极连接；所述第五MOS管Q3的源极接地，所述第五MOS管Q3的漏极与所述第六MOS管Q4的栅极连接；所述第六MOS管Q4的漏极与所述过压保护芯片U1的输出端连接，所述第六MOS管Q4的源极与电池连接；所述电容 C1连接于所述第六MOS管Q4的栅极和地之间；所述瞬态抑制二极管D1的阳极与所述供电电路300的负极PGND连接，所述瞬态抑制二极管D1的阴极与所述供电电路300的正极VBAT_IN连接。
具体的，当所述电子烟本体的电池通过所述充电底座进行正常充电时，由于所述第六MOS管Q4的栅极与所述供电电路300的正极VBAT_IN连接，所述第六MOS管Q4的源极接地，则所述第六MOS管Q4的导通，那么所述第六MOS管Q4的漏极接地，也即所述第五MOS管Q3的栅极接地，由于所述第五MOS管Q3的源极与所述电子烟本体的电池连接，则所述第五MOS管Q3的三级电压小于所述源极电压，则所述第五MOS管Q3的源极导通，供电电路300的正极VBAT_IN接入所述充电电路的充电电压，并通过所述第五MOS管Q3传输给所述电池的输入端VBAT1进行充电。
所述过压保护芯片U1可防止外部电压过高时损坏所述供电电路300；所述瞬态抑制二极管D1可吸收所述供电电路300在通过所述充电电路充电瞬间产生的浪涌尖峰，提高产品可靠性；所述电容C1防止所述充电电路中的电压中含干扰，避免干扰使所述第六MOS管Q4误导通，进而使所述第五MOS管Q3误导通，用于指示指示灯亮或者灭的节点CE的电压常高(指示灯设置在电子烟本体上，用于指示所述电子烟本体是否被充电)，使得所述指示灯常亮，出现电子烟本体被误指示为充电状态的现象。
一种充电方法，包括：
当充电底座的第一电极RELAY_A和第二电极RELAY_B之间的电压极性与被充电设备的电池的电压极性一致时，充电底座的第一电极RELAY_A和第二电极RELAY_B输出充电电压给被充电设备；这里的被充电设备为所述电子烟。
当充电底座的第一电极RELAY_A和第二电极RELAY_B之间的电压极 性与所述电池的电压极性不一致时，所述被充电设备的钳位电路200降低所述第一电极RELAY_A和所述第二电极RELAY_B之间的电压，之后充电底座的充电电路100将所述第一电极RELAY_A和所述第二电极RELAY_B的电压进行转换处理，以调整充电底座的第一电极RELAY_A和第二电极RELAY_B之间的电压极性与被充电设备的正极和负极之间的电压极性一致，然后充电底座的第一电极RELAY_A和第二电极RELAY_B输出充电电压给被充电设备。
在另一个实施例中，在所述充电底座的第一电极RELAY_A和第二电极RELAY_B输出的电平与所述被充电设备的正极和负极一致后，所述充电方法还包括：
通过单片机采集所述被充电设备的节点电压，以及单片机通过AD采样采集电子烟本体的电池的电压，本实施例中所述被充电设备位电子烟本体，所述节点电压为所述电子烟本体的供电电路中的节点CE的电压，将所述节点CE的电压与预设电压进行比较，所述预设电压为0.7倍的电池电压，也就是说，当所述节点CE的电压大于0.7倍的电池电压，则单片机控制所述指示灯点亮，以提示所述电子烟本体正在充电；
所述节点CE的电压小于0.7倍的电池电压，则关闭指示灯，以提示所述被充电设备未进行充电。
以上所揭露的仅为本发明较佳实施例而已，当然不能以此来限定本发明之权利范围，因此依本发明权利要求所作的等同变化，仍属本发明所涵盖的范围。

Claims (20)

  1. 一种充电底座，其特征在于，包括：
    第一电极和第二电极，用于输出充电电压给所述被充电设备；所述第一电极和所述第二电极之间至少具备第一状态和第二状态；和
    充电电路，与所述第一电极和所述第二电极相连接，用于接收输入电压，并在所述第一电极和所述第二电极之间处于所述第一状态的情况下，对所述输入电压进行变换产生所述充电电压；以及在所述第一电极和所述第二电极之间处于所述第二状态的情况下，将所述第一电极和所述第二电极之间调整为所述第一状态，之后对所述输入电压进行变换产生所述充电电压。
  2. 根据权利要求1所述的充电底座，其特征在于，
    所述第一状态为：所述第一电极为负极，所述第二电极为正极；
    所述第二状态为：所述第一电极为正极，且所述第一电极的对地电压小于所述输入电压，所述第二电极为负极。
  3. 根据权利要求1所述的充电底座，其特征在于，所述充电电路包括：
    分压电路，用于接收所述输入电压，并将所述输入电压进行分压并输出分压电压；和
    电平输出电路，与所述分压电路相连接，用于基于所述分压电压，使所述第一电极和所述第二电极分别为正极和负极。
  4. 根据权利要求3所述的充电底座，其特征在于，所述充电电路还包括：
    浪涌保护电路，与所述分压电路和所述电平输出电路连接，用于吸收所述电平输出电路瞬间短路时产生的浪涌及尖峰。
  5. 根据权利要求3所述的充电底座，其特征在于，所述分压电路包括：第一电阻、第二电阻、第三电阻、第四电阻和第五电阻；
    所述第一电阻的第一端与所述外部电源连接，所述第一电阻的第二端与所述第二电阻和所述第三电阻的第一端连接；
    所述第二电阻的第二端与所述电平输出电路和所述第五电阻的第一端连 接；
    所述第三电阻的第二端与所述电平输出电路和所述第四电阻的第一端连接；
    所述第四电阻的第二端和所述第五电阻的第二端均接地。
  6. 根据权利要求3所述的充电底座，其特征在于，所述电平输出电路包括：第一MOS管、第二MOS管、第三MOS管和第四MOS管；
    所述第一MOS管的栅极与所述分压电路和所述第二MOS管的漏极连接，所述第一MOS的源极与所述外部电源连接，所述第一MOS管的漏极与所述第三MOS管的漏极连接；
    所述第二MOS管的栅极与所述分压电路和所述第一MOS管的漏极连接，所述第二MOS管的源极与所述外部电源连接，所述第二MOS管的漏极与所述第四MOS管的漏极连接；
    所述第三MOS管的栅极与所述第二电极连接，所述第三MOS管的源极接地，所述第三MOS管的漏极与所述第一电极连接；
    所述第四MOS管的栅极与所述第一电极连接，所述第四MOS管的源极接地，所述第四MOS管的漏极所述第二电极连接。
  7. 根据权利要求6所述的充电底座，其特征在于，所述浪涌保护电路包括：第一二极管和第二二极管；
    所述第一二极管的阳极接地，所述第一二极管的阴极与所述第一MOS管的漏极连接；
    所述第二二极管的阳极接地，所述第二二极管的阴极与所述第二MOS管的漏极连接。
  8. 一种电子烟，其特征在于，包括：权利要求1所述的充电底座和电子烟本体。
  9. 根据权利要求8所述的电子烟，其特征在于，所述第一电极和所述第二 电极之间还具有第三状态；
    所述电子烟本体包括：
    钳位电路，用于在所述第一电极和所述第二电极处于所述第三状态的情况下，对所述第一电极和所述第二电极之间的电压进行钳位，以使所述第一电极和所述第二电极由所述第三状态切换为所述第二状态；
    供电电路，与所述第一电极、第二电极和位于所述电子烟本体内的电池连接，用于利用所述充电电压向所述电池充电。
  10. 根据权利要求9所述的电子烟，其特征在于，
    所述第三状态为：所述第一电极为正极，且所述第一电极的对地电压为所述输入电压，所述第二电极为负极。
  11. 根据权利要求9所述的电子烟，其特征在于，所述钳位电路包括第三二极管；
    所述第三二极管的阳极与所述供电电路的负极连接，所述第三二极管的阴极与所述供电电路的正极连接。
  12. 根据权利要求11所述的电子烟，其特征在于，所述供电电路包括：过压保护芯片、第五MOS管和第六MOS管；
    所述过压保护芯片的输入端接入所述充电电路输出的电压，为所述供电电路的正极，所述过压保护芯片的输出端与所述第五MOS管的栅极连接；
    所述第五MOS管的源极接地，所述第五MOS管的漏极与所述第六MOS管的栅极连接；所述第六MOS管的漏极与所述过压保护芯片的输出端连接，所述第六MOS管的源极与电池连接。
  13. 根据权利要求8所述的电子烟，其特征在于，
    所述第一状态为：所述第一电极为负极，所述第二电极为正极；
    所述第二状态为：所述第一电极为正极，且所述第一电极的对地电压小于所述输入电压，所述第二电极为负极。
  14. 根据权利要求8所述的电子烟，其特征在于，所述充电电路包括：
    分压电路，用于接收所述输入电压，并将所述输入电压进行分压并输出分压电压；和
    电平输出电路，与所述分压电路相连接，用于基于所述分压电压，使所述第一电极和所述第二电极分别为正极和负极。
  15. 根据权利要求13所述的电子烟，其特征在于，所述充电电路还包括：
    浪涌保护电路，与所述分压电路和所述电平输出电路连接，用于吸收所述电平输出电路瞬间短路时产生的浪涌及尖峰。
  16. 根据权利要求13所述的电子烟，其特征在于，所述分压电路包括：第一电阻、第二电阻、第三电阻、第四电阻和第五电阻；
    所述第一电阻的第一端与所述外部电源连接，所述第一电阻的第二端与所述第二电阻和所述第三电阻的第一端连接；
    所述第二电阻的第二端与所述电平输出电路和所述第五电阻的第一端连接；
    所述第三电阻的第二端与所述电平输出电路和所述第四电阻的第一端连接；
    所述第四电阻的第二端和所述第五电阻的第二端均接地。
  17. 根据权利要求13所述的电子烟，其特征在于，所述电平输出电路包括：第一MOS管、第二MOS管、第三MOS管和第四MOS管；
    所述第一MOS管的栅极与所述分压电路和所述第二MOS管的漏极连接，所述第一MOS的源极与所述外部电源连接，所述第一MOS管的漏极与所述第三MOS管的漏极连接；
    所述第二MOS管的栅极与所述分压电路和所述第一MOS管的漏极连接，所述第二MOS管的源极与所述外部电源连接，所述第二MOS管的漏极与所述第四MOS管的漏极连接；
    所述第三MOS管的栅极与所述第二电极连接，所述第三MOS管的源极接地，所述第三MOS管的漏极与所述第一电极连接；
    所述第四MOS管的栅极与所述第一电极连接，所述第四MOS管的源极接地，所述第四MOS管的漏极所述第二电极连接。
  18. 根据权利要求16所述的电子烟，其特征在于，所述浪涌保护电路包括：第一二极管和第二二极管；
    所述第一二极管的阳极接地，所述第一二极管的阴极与所述第一MOS管的漏极连接；
    所述第二二极管的阳极接地，所述第二二极管的阴极与所述第二MOS管的漏极连接。
  19. 一种充电方法，其特征在于，所述充电方法包括：
    当充电底座的第一电极和第二电极之间的电压极性与被充电设备的电池的电压极性一致时，充电底座的第一电极和第二电极输出充电电压给被充电设备；
    当充电底座的第一电极和第二电极之间的电压极性与所述电池的电压极性不一致时，所述被充电设备的钳位电路降低所述第一电极和所述第二电极之间的电压，之后充电底座的充电电路将所述第一电极和所述第二电极的电压进行转换处理，以调整充电底座的第一电极和第二电极之间的电压极性与被充电设备的正极和负极之间的电压极性一致，然后充电底座的第一电极和第二电极输出充电电压给被充电设备。
  20. 根据权利要求19所述的充电方法，其特征在于，在所述充电底座的第一电极和第二电极之间的电压极性与所述被充电设备的电池的电压极性一致后，所述充电方法还包括：
    采集所述被充电设备的节点电压，与预设电压进行比较，若所述节点电压大于所述预设电压，则点亮所述被充电设备上的指示灯，以提示所述被充 电设备正在通过所述充电底座充电；
    若所述节点电压小于所述预设电压，则关闭指示灯，以提示所述被充电设备未进行充电。
PCT/CN2022/095059 2021-09-23 2022-05-25 一种充电底座、电子烟及充电方法 WO2023045376A1 (zh)

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