METHOD AND DEVICE FOR HEATING CONTROL OF AN ELECTRONIC CIGARETTE

• US 20140251324A1
• Filed: 04/25/2013
• Published: 09/11/2014
• Est. Priority Date: 03/05/2013
• Status: Active Grant

• Current Assignee: Huizhou Kimree Technology Co., Ltd
• Original Assignee: Huizhou Kimree Technology Co., Ltd
• Inventors: Xiang, Zhiyong
• Granted Patent: US 9,603,386 B2
• Time in Patent Office: Days
• US Class Current: 128/202.21
• CPC Class Codes: A24F 40/10 Devices using liquid inhalable precursors
• CPC Class Codes: A24F 40/50 Control or monitoring

Abstract

A method and device for heating control of an electronic cigarette are provided, wherein, the method includes steps as below: S1. sensing whether there is a smoke signal via a sensor or a switch, if yes, executing step S2; S2. activating a timer to record time and turn on a semiconductor switch so as to heat the heating element in a full output power mode; S3. heating the heating element in a constant power mode when the recording time of the timer arrives at a first preset time T0. When implementing the present invention, the adoption of the two heating methods for heating element makes an optimized atomization effect and an excellent taste of smoking possible, which is not affected by the changeable voltage of the battery.

Claims

1. A method for heating control of an electronic cigarette, wherein, comprising steps as follows:

S1. sensing whether there is a smoke signal via a sensor or a switch, if yes, executing step S2;

S2. activating a timer to record time and turn on a semiconductor switch so as to heat the heating element in a full output power mode;

S3. heating the heating element in a constant power mode when the recording time of the timer arrives at a first preset time T0.

2. The method for heating control of an electronic cigarette of claim 1, wherein, the step S3 further comprises:

S31. sampling the voltage of a power battery;

S32. calculating the duty ratio of the pulse width modulation signal in accordance with the voltage of the power battery and the preset constant power;

S33. controlling the breakover of the semiconductor switch based on the calculated pulse width modulation signal, and implementing heating control of the heating element in the constant power mode.

3. The method for heating control of an electronic cigarette of claim 2, wherein, it further comprises the following step after the step S3:

S4. resetting the count value of the timer.

4. The method for heating control of an electronic cigarette of claim 3, wherein, it further comprises the following step before the step 51:

S0. setting the first preset time T0 and the preset constant power.

5. The method for heating control of an electronic cigarette of claim 4, wherein, the semiconductor switch is one of a triode, a field-effect tube and an insulated gate bipolar transistor.

6. A device for heating control of an electronic cigarette, wherein, it comprises a heating element, a power battery used for powering the electronic cigarette, a semiconductor switch used for controlling the power battery to heat the heating element or not, a smoke signal detecting module used for detecting whether there is a smoke signal and a microcontroller connected with the power battery, the smoke signal detecting module and the control end of the semiconductor switch simultaneously;

the microcontroller further comprises a timer, the microcontroller will give orders to turn on the semiconductor switch and activate the timer to record time when a smoke signal has been detected by the smoke signal detecting module, the heating element is heated in a full power output mode;

the heating element is heated in a constant power control mode when the count value of the timer arrives at a first preset time T0.

7. The device for heating control of an electronic cigarette of claim 6, wherein, the microcontroller further comprises:

a sampling unit, which is used for sampling the voltage of the power battery;

a calculating unit, which is connected to the sampling unit and used for calculating the duty ratio of the pulse width modulation signal according to the voltage of the power battery and the preset constant power ;

a control unit , which is connected to the calculating unit and used for controlling the breakover of the semiconductor switch based on the calculated pulse width modulation signal, and implementing heating control of the heating element.

8. The device for heating control of an electronic cigarette of claim 7, wherein, the microcontroller further comprises :

a resetting unit, which is connected to the timer and used for resetting the count value of the timer.

9. The device for heating control of an electronic cigarette of claim 8, wherein, it further comprises:

a setting module, which is connected to the microcontroller and used for setting the first preset time T0 and the preset constant power.

10. The device for heating control of an electronic cigarette of claim 9, wherein, the semiconductor switch is one of a triode, a field-effect tube, and an insulated gate bipolar transistor.