WO2017012105A1 - Electronic cigarette and control method therefor - Google Patents

Abstract

An electronic cigarette comprises a power module (100), a heating component (200), a power measurement module (300), and a power adjustment module (400). The power measurement module (300) is connected to the heating component (200) and the power adjustment module (400) respectively, and is used for measuring the current power of the heating component (200) and outputting a control signal to the power adjustment module (400). The power adjustment module (400) is connected between the power module (100) and the heating component (200), and is used for adjusting, according to the control signal, power outputted to the heating component (200).

Description

Electronic cigarette and its control method

[Technical Field]

The invention relates to a cigarette substitute, in particular to an electronic cigarette and a control method thereof.

【Background technique】

The electronic cigarette is an electronic device that supplies power to the heating wire through a battery, and the heating wire heats up the atomizing oil to achieve a smoking effect. However, the lithium battery generally used in electronic cigarettes generally has a voltage value that decreases as the amount of electricity decreases, and the heating efficiency of the heating wire also changes. Therefore, the amount of smoke and the taste of the electronic cigarette change during use.

[Summary of the Invention]

Based on this, it is necessary to provide an electronic cigarette and a control method thereof for the problem that the heat generation efficiency of the heat generating component is unstable.

An electronic cigarette comprising:

Heating component

a power module for supplying power to the heat generating component;

a power measurement module connected to the heat generating component for measuring current power of the heat generating component and outputting a control signal; and

And a power adjustment module connected between the power module and the heat generating component and connected to the power measuring module, configured to receive the control signal and adjust power output to the heat generating component according to the control signal.

A method for controlling an electronic cigarette includes the following steps:

The power measurement module measures the current power of the heat generating component and outputs a control signal to the power conditioning module; and

The power adjustment module adjusts power output to the heat generating component according to the control signal.

The electronic cigarette and the control method thereof, the current power of the heat generating component is detected by the power measuring module and a control signal is output to the power regulating module, and the power adjusting module adjusts the power output to the heat generating component according to the control signal, thereby accurately Adjust the power of the heating component to make the heating efficiency stable, and improve the smoke volume and the stability of the mouthfeel.

[Description of the Drawings]

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only It is a certain embodiment of the present invention, and those skilled in the art can obtain drawings of other embodiments according to the drawings without any creative work.

1 is a functional block diagram of an electronic cigarette according to an embodiment;

2 is another functional block diagram of the electronic cigarette shown in FIG. 1;

Figure 3 is a schematic diagram of the electronic cigarette shown in Figure 2;

4 is a flow chart of a method for controlling an electronic cigarette according to an embodiment;

Figure 5 is a flow chart of step S100 of Figure 4;

Figure 6 is a flow chart of step S200 of Figure 4.

 【detailed description】

In order to facilitate the understanding of the present invention, the electronic cigarette and its control method will be more fully described below with reference to the related drawings. A preferred embodiment of the electronic cigarette and its control method is given in the drawing. However, the electronic cigarette and its control method can be implemented in many different forms and are not limited to the embodiments described herein. Rather, the purpose of providing these embodiments is to make the disclosure of electronic cigarettes and their control methods more thorough and comprehensive.

All technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, unless otherwise defined. The terminology used herein is for the purpose of describing particular embodiments, and is not intended to limit the invention.

As shown in FIG. 1 , an electronic cigarette 10 of an embodiment includes a power module 100 , a heat generating component 200 , a power measuring module 300 , and a power adjusting module 400 . The power module 100 can be a lithium battery or other types of power sources. The power measurement module 300 is respectively connected to the heat generating component 200 and the power conditioning module 400 for measuring the current power of the heat generating component 200 and outputting a control signal to the power conditioning module 400. The power conditioning module 400 is coupled between the power module 100 and the heat generating component 200 for regulating the power output to the heat generating component 200 in accordance with the control signal. The power measurement module 300 detects the current power of the heat generating component 200 and outputs a control signal to the power conditioning module 400. The power conditioning module 400 adjusts the power output to the heat generating component 200 according to the control signal, thereby accurately adjusting the power of the heat generating component 200. The thermal efficiency is stable, and the amount of smoke and the stability of the mouthfeel of the electronic cigarette 10 are improved.

The power measurement module 300 measures the current power of the heat generating component 200 by directly measuring the power meter, and calculating the current power by measuring the voltage value and the current value. Referring to FIG. 2 and FIG. 3 simultaneously, in one embodiment, the power measurement module 300 includes a voltage detecting unit 320, a current detecting unit 340, and a micro processing unit 360. The voltage detecting unit 320 is connected to the heat generating component 200 for detecting the voltage value of the heat generating component 200. In one embodiment, the heat generating component 200 is a heating wire, and the voltage detecting unit 320 is respectively connected to both ends of the heating wire to detect voltage values at both ends of the heating wire. The current detecting unit 340 is connected to the heat generating component 200 for detecting the current value of the heat generating component 200. The micro processing unit 360 is connected to the voltage detecting unit 320 and the current detecting unit 340, respectively, for acquiring a voltage value and a current value, and outputting a control signal according to the voltage value and the current value.

In general, the output voltage of the power module 100 changes as the power is reduced, the resistance value of the heat generating component 200 changes with temperature, or the heat generating component 200 with different resistance values is replaced, and the heat generating component 200 is The effect of heat efficiency is affected. The electronic cigarette 10 of the present embodiment detects the voltage value and the current value of the heat generating component 200 by the voltage detecting unit 320 and the current detecting unit 340, and can accurately determine the power of the heat generating component 200. Regardless of whether the output voltage of the power module 100 changes or the resistance value of the heat generating component 200 changes, the current power of the heat generating component 200 calculated based on the voltage value and the current value is accurate, so that the output to the heat generating component 200 can be accurately adjusted. The power ensures that the heat generation efficiency of the heat generating component 200 is stable, and the amount of smoke and the stability of the mouthfeel of the electronic cigarette 10 are improved.

In one embodiment, the micro-processing unit 360 pre-sets the target power, and the micro-processing unit 360 is configured to calculate the current power of the heat-generating component 200 according to the voltage value and the current value. If the current power is different from the target power, the control signal is output. . Further, in an embodiment, the electronic cigarette 10 may further include an input module 500, and the input module 500 may be connected to the micro processing unit 360 of the power measurement module 300 for setting target power. Generally, the micro processing unit 360 presets the target power, and after being used by the user, the user can reset the target power through the input module 500, so that the user can adjust the amount of smoke and the taste of the electronic cigarette 10 as needed. Of course, the preset may not be performed at the time of shipment, and the first preset is performed by the input module 500 when the user first uses it.

Referring again to FIGS. 2 and 3, in one embodiment, the power conditioning module 400 includes PWM (Pulse-Width). Modulation, pulse width modulation) control unit 420 and switching unit 440. The PWM control unit 420 is connected to the power measurement module 300. Specifically, the PWM control unit 420 can be connected to the micro processing unit 360 for receiving a control signal, adjusting the duty ratio of the pulse signal according to the control signal, and outputting the pulse signal. The switch unit 440 is connected between the power module 100 and the heat generating component 200, and the switch unit 440 is connected to the PWM control unit 420 for receiving a pulse signal, and controls the heat generating component 200 to be powered on or off according to the pulse signal. In an embodiment, the switching unit 440 is a MOSFET (Metal-Oxide-Semiconductor) Field-Effect Transistor, metal-oxide semiconductor field effect transistor) switch.

As shown in FIG. 4, a method for controlling the electronic cigarette 10 of an embodiment is used to control the electronic cigarette 10 shown in FIG. 1 to FIG. 3 to ensure stable heat generation efficiency of the heat generating component 200 of the electronic cigarette 10, which includes the following steps. :

S100, the power measurement module 300 measures the current power of the heat generating component 200 and outputs a control signal to the power conditioning module 400. The power measurement module 300 measures the current power of the heat generating component 200 by directly measuring the power meter, and calculating the current power by measuring the voltage value and the current value. Referring to FIG. 5, in one embodiment, step S100 may include the following steps:

S120, detecting a voltage value and a current value of the heat generating component 200, and calculating a current power of the heat generating component 200 according to the voltage value and the current value. In an embodiment, in step S120, the voltage value and the current value of the heat generating component 200 can be continuously detected at predetermined intervals, and the heating efficiency of the heat generating component 200 is continuously adjusted. It is also possible to set back to the step of performing step S120 in the subsequent steps.

S140. Determine whether the current power meets a preset condition. If the preset condition is not met, step S160 is performed. In an embodiment, the preset condition may be that the current power is the same as the target power, and if the current power is different from the preset target power, S160 is performed. The determination mode of the embodiment is simple, the micro processing unit 360 can run quickly, and the micro processing unit 360 consumes low power. In another embodiment, the preset condition may be that the difference between the current power and the target power is less than or equal to a preset tolerance. The tolerance is generally less than or equal to 10% of the target power. For example, the tolerance is set to 5% of the target power. If the difference between the current power and the target power is greater than 5% of the target power, S160 is performed.

In one of the embodiments, the step of setting the target power is included before step S120 (S110). The set target power can be set directly on the micro processing unit 360 at the time of shipment, or can be set by the input module 500. Generally, the micro processing unit 360 presets the target power, and after the user uses the user, the user can reset the target power through the input module 500, so that the user can adjust the amount of smoke and the taste of the electronic cigarette 10 as needed. Of course, the preset may not be performed at the time of shipment, and the first preset is performed by the input module 500 when the user first uses it.

In the embodiment in which the voltage value and the current value of the heat generating component 200 are continuously detected for the interval preset time in step S120, if the step S140 determines that the preset condition is met, the current control flow may directly end. In other embodiments, if the preset condition is met, the process returns to S120 to implement continuous adjustment of the heat generation efficiency of the heat generating component 200.

S160, outputting a control signal. In the present embodiment, the voltage value and the current value of the heat generating component 200 are detected by the voltage detecting unit 320 and the current detecting unit 340, and the power of the heat generating component 200 can be accurately determined. Regardless of whether the output voltage of the power module 100 changes or the resistance value of the heat generating component 200 changes, the current power of the heat generating component 200 calculated based on the voltage value and the current value is accurate, so that the output to the heat generating component 200 can be accurately adjusted. The power ensures that the heat generation efficiency of the heat generating component 200 is stable, and the amount of smoke and the stability of the mouthfeel of the electronic cigarette 10 are improved.

S200, the power adjustment module 400 adjusts the power output to the heat generating component 200 according to the control signal. Referring to FIG. 6 at the same time, in one embodiment, step S200 may include the following steps:

S220: Receive a control signal, adjust a duty ratio of the pulse signal according to the control signal, and output a pulse signal.

S240, receiving a pulse signal, and controlling the heating component 200 to be powered on or off according to the pulse signal. Thereby, the heat generation efficiency of the heat generating component 200 is controlled.

In an embodiment, in an embodiment in which the voltage value and the current value of the heat generating component 200 are continuously detected for the preset time interval in step S120, after the end of step S200, the current control flow may be directly ended. In other embodiments, after the end of step S200, the process returns to execution S120. That is, if the current power does not meet the preset condition, after step S160, it further includes returning to the step of performing step S120 to implement continuous adjustment of the heat generation efficiency of the heat generating component 200.

The method for controlling the electronic cigarette 10 in the above embodiment detects the current power of the heat generating component 200 through the power measuring module 300 and outputs a control signal to the power adjusting module 400. The power adjusting module 400 adjusts the power output to the heat generating component 200 according to the control signal. Thereby, the power of the heat generating component 200 is precisely adjusted, the heat generation efficiency is stabilized, and the amount of smoke and the stability of the mouthfeel of the electronic cigarette 10 are improved.

The technical features of the above-described embodiments may be arbitrarily combined. For the sake of brevity of description, all possible combinations of the technical features in the above embodiments are not described. However, as long as there is no contradiction between the combinations of these technical features, All should be considered as the scope of this manual.

The above-described embodiments are merely illustrative of several embodiments of the present invention, and the description thereof is more specific and detailed, but is not to be construed as limiting the scope of the invention. It should be noted that a number of variations and modifications may be made by those skilled in the art without departing from the spirit and scope of the invention. Therefore, the scope of the invention should be determined by the appended claims.

Claims (15)

An electronic cigarette comprising: Heating component a power module for supplying power to the heat generating component; a power measurement module connected to the heat generating component for measuring current power of the heat generating component and outputting a control signal; and And a power adjustment module connected between the power module and the heat generating component and connected to the power measuring module, configured to receive the control signal and adjust power output to the heat generating component according to the control signal. The electronic cigarette according to claim 1, wherein the power measurement module comprises: a voltage detecting unit connected to the heat generating component for detecting a voltage value of the heat generating component; a current detecting unit connected to the heat generating component for detecting a current value of the heat generating component; and And a micro processing unit connected to the voltage detecting unit and the current detecting unit respectively for acquiring the voltage value and the current value, and outputting the control signal according to the voltage value and the current value. The electronic cigarette according to claim 2, wherein the heat generating component is a heating wire, and the voltage detecting unit is respectively connected to both ends of the heating wire to detect a voltage value of both ends of the heating wire. The electronic cigarette according to claim 2, wherein the micro processing unit is pre-set with target power, and the micro processing unit is configured to calculate a current state of the heat generating component according to the voltage value and the current value. Power, if the current power is different from the target power, outputting the control signal. The electronic cigarette according to claim 4, further comprising: an input module connected to the micro processing unit for setting the target power. The electronic cigarette according to claim 1, wherein the power adjustment module comprises: a PWM control unit, coupled to the power measurement module, configured to receive the control signal, adjust a duty ratio of the pulse signal according to the control signal, and output the pulse signal; a switch unit connected between the power module and the heat generating component, and the switch unit is connected to the PWM control unit, configured to receive the pulse signal, and control the heat generating component to be powered according to the pulse signal Or power off. The electronic cigarette according to claim 6, wherein the switching unit is a MOSFET switch. A method for controlling an electronic cigarette, comprising the steps of: The power measurement module measures the current power of the heat generating component and outputs a control signal to the power conditioning module; and The power adjustment module adjusts power output to the heat generating component according to the control signal. The method according to claim 8, wherein the step of adjusting, by the power adjustment module, the power output to the heat generating component according to the control signal comprises the following steps: Receiving the control signal, adjusting a duty ratio of the pulse signal according to the control signal, and outputting the pulse signal; and The pulse signal is received, and the heat generating component is controlled to be powered on or off according to the pulse signal. The method according to claim 8, wherein the step of the power measurement module measuring the current power of the heat generating component and outputting the control signal to the power conditioning module comprises: Detecting a voltage value and a current value of the heat generating component, and calculating a current power of the heat generating component according to the voltage value and the current value; Determining whether the current power meets a preset condition; and If the preset condition is not met, the control signal is output. The method according to claim 10, wherein if the current power does not meet the preset condition, after the step of outputting the control signal, further comprising returning to perform performing the detecting of the voltage value of the heat generating component and a current value, a step of obtaining a current power of the heat generating component according to the voltage value and the current value; And if the current power meets the preset condition, returning to performing the detecting the voltage value and the current value of the heat generating component, and calculating the current power of the heat generating component according to the voltage value and the current value. The method according to claim 10, wherein in the step of detecting the voltage value and the current value of the heat generating component, and calculating the current power of the heat generating component according to the voltage value and the current value, the interval preset The time continuously detects the voltage value and current value of the heat generating component. The method according to claim 10, wherein before said step of detecting a voltage value and a current value of the heat generating component, calculating a current power of said heat generating component based on said voltage value and said current value, Includes the steps to set the target power. The method according to claim 13, wherein the preset condition is that the current power is the same as the target power. The method according to claim 13, wherein the preset condition is that a difference between the current power and the target power is less than or equal to a preset tolerance.