Charging method of electronic cigarettes and electronic cigarette box

1. A charging method of electronic cigarettes, comprising:

S1 presetting a first voltage, a first current, a length of time, a second current and a second voltage;

S2 charging an electronic cigarette with the first voltage as charging voltage and the first current as a maximum value of charging current for the length of time;

S3 detecting actual charging current or actual charging voltage to the electronic cigarette;

S4 comparing the actual charging current or the actual charging voltage with the second current or the second voltage separately;

S5 selecting one of charging modes to charge the electronic cigarette according to a comparing result.

2. The charging method according to claim 1 , wherein the charging modes include a first charging mode and a second charging mode; and

when the actual charging current is more than or equal to the second current, or the actual charging voltage is less than or equal to the second voltage, the first charging mode is selected to charge the electronic cigarette; and

when the actual charging current is less than the second current or the actual charging voltage is more than the second voltage, the second charging mode is selected to charge the electronic cigarette.

3. The charging method according to claim 2 , wherein the first charging mode is a charging mode of charging the electronic cigarette with a constant charging current and a charging voltage to be not more than 4.2V.

4. The charging method according to claim 2 , wherein the second charging mode is a charging mode of charging the electronic cigarette with a 5V charging voltage.

5. The charging method according to claim 2 , wherein the second current is more than a constant charging current of the electronic cigarette.

6. The charging method according to claim 2 , wherein the method further includes: detecting the actual charging current in the first charging mode or the second charging mode, and stopping charging the electronic cigarette when the actual charging current is less than a preset third current.

7. The charging method according to claim 1 , wherein the first voltage is 5V.

8. The charging method according to claim 1 , wherein the length of time is 1 second.

9. The charging method according to claim 1 , wherein the first current is more than a constant charging current of the electronic cigarette.

10. An electronic cigarette box configured for charging electronic cigarettes, wherein, the electronic cigarette box includes:

a microprocessor, a charging detection module respectively connected with the microprocessor and an electronic cigarette, and an electronic cigarette charging module respectively connected with the microprocessor and the electronic cigarette;

wherein the microprocessor is used for presetting with a first voltage, a first current, a length of time, a second current and a second voltage; and

the microprocessor is configured to control the electronic cigarette charging module to charge the electronic cigarette with the first voltage and the first current as a maximum value of charging current for the length of time; and

the charging detection module is configured to detect actual charging current or actual charging voltage; and

the microprocessor is further used for comparing the actual charging current or the actual charging voltage with the second current or the second voltage separately, and controlling the electronic cigarette charging module to select one of charging modes to charge the electronic cigarette according to a comparing result.

11. The electronic cigarette box according to claim 10 , wherein the charging modes include a first charging mode and a second charging mode, and when the actual charging current detected by the charging detection module is more than or equal to the second current or the actual charging voltage detected by the charging detection module is less than or equal to the second voltage, the microprocessor is further configured to control the electronic cigarette charging module to select the first charging mode to charge the electronic cigarette; and

when the actual charging current detected by the charging detection module is less than the second current or the actual charging voltage detected by the charging detection module is more than the second voltage the microprocessor is further configured to control the electronic cigarette charging module to select the second charging mode to charge the electronic cigarette.

12. The electronic cigarette box according to claim 11 , wherein the first charging mode is a charging mode of charging the electronic cigarette with a constant charging current and limits a charging voltage to be not more than 4.2V.

13. The electronic cigarette box according to claim 11 , wherein the second charging mode is a charging mode of charging the electronic cigarette with a 5V charging voltage.

14. The electronic cigarette box according to claim 11 , wherein in the first charging mode or the second charging mode, the charging detection module is further configured to detect the actual charging current;

wherein the microprocessor is also used to compare the actual charging current with a preset third current value, and if the actual charging current is less than the preset third current, then the electronic cigarette charging module is controlled to stop charging the electronic cigarette.

15. The electronic cigarette box according to claim 10 , wherein the electronic cigarette box also includes a booster module and a rechargeable battery, the booster module is used to boost voltage of the rechargeable battery to charge the electronic cigarette.

16. The electronic cigarette box according to claim 15 , wherein the electronic cigarette box further includes a low voltage detection module, an overcurrent detection module, an overvoltage detection module, a charging module, and a charging management module;

the low voltage detection module is configured to detect the voltage of the rechargeable battery in the electronic cigarette box and a voltage detection results are transmitted to the microprocessor, when the voltage detection result is less than a preset low voltage, the microprocessor will control the electronic cigarette charging module to stop charging the electronic cigarette;

the overcurrent detection module is configured to detect current of charging circuit in the electronic cigarette box and a current detection result is transmitted to the microprocessor, when the current detection result is more than a preset over current, the microprocessor will control the electronic cigarette charging module to stop charging the electronic cigarette;

the overvoltage detection module is configured to detect voltage of the charging circuit in the electronic cigarette box and a voltage detection results is transmitted to the microprocessor, when the voltage detection result is more than a preset high voltage, the microprocessor will control the electronic cigarette charging module to stop charging the electronic cigarette;

the charging module is configured to connect with an external power source, and to charge the rechargeable battery in the electronic cigarette box;

the charging management module is configured to manage the external charging power supply in charging process of the rechargeable battery of the electronic cigarette box, make the charging mode of the rechargeable battery to be constant current or constant voltage mode.

17. The electronic cigarette box according to claim 10 , wherein the first current is more than a constant current.

18. The electronic cigarette box according to claim 10 , wherein the second current is more than a constant current.