Electronic atomization device and control method thereof

Abstract

The invention discloses an electronic atomization device and a control method thereof, and the electronic atomization device comprises a liquid storage unit which is used for storing a liquid matrix; the heating element is used for heating the liquid substrate to generate aerosol; the electric core is used for providing electric power for the heating element; the method comprises: determining the remaining amount of the liquid substrate; according to the residual amount of the liquid matrix, searching in pre-stored relation data of the residual amount and electrical parameters to obtain the electrical parameters corresponding to the residual amount; and according to the found electrical parameters, controlling the electrical core to adjust the electric power provided for the heating element. By determining the residual amount of the liquid matrix and the corresponding electrical parameters, the battery cell is controlled to adjust the electric power provided for the heating element, the problem that due to reduction of the liquid matrix, the power provided for the heating element is large, and the burnt taste is generated is solved, and the suction experience of a user is improved.

Description

Technical Field

[0001] The present application relates to the technical field of electronic atomization, and in particular to an electronic atomization device and a control method thereof. Background Art

[0002] An electronic atomization device is an electronic product that heats a liquid matrix, such as tobacco oil, to produce an aerosol for users to inhale. It generally consists of two parts: an atomizer and a power supply assembly. The atomizer stores the liquid matrix and is provided with an atomization core for heating the liquid matrix. The power supply assembly can supply power to the atomization core to generate heat to generate high temperature to heat the liquid matrix.

[0003] An existing electronic atomization device is not prone to produce a burnt smell when inhaled due to sufficient liquid matrix when it is first used; after a certain number or times of inhalation, as the liquid matrix gradually decreases, if the battery cell of the electronic atomization device is fully charged, for example, recharged to full power, a burnt smell is easily produced during inhalation due to insufficient liquid supply, thereby reducing the user's inhalation experience. Summary of the invention

[0004] The present application provides an electronic atomization device and a control method thereof to solve the problem of burnt smell generated by the existing electronic atomization device.

[0005] The present application provides a control method for an electronic atomization device, wherein the electronic atomization device comprises: a liquid storage unit for storing a liquid matrix; a heating element for heating the liquid matrix to generate an aerosol; and a battery core for providing power to the heating element.

[0006] The method comprises:

[0007] determining the remaining amount of the liquid matrix;

[0008] According to the remaining amount of the liquid matrix, searching in pre-stored data on the relationship between the remaining amount and the electrical parameter to obtain the electrical parameter corresponding to the remaining amount;

[0009] According to the found electrical parameter, the battery cell is controlled to adjust the power provided to the heating element.

[0010] Another aspect of the present application provides an electronic atomization device, comprising:

[0011] a liquid storage unit for storing a liquid matrix;

[0012] a heating element for heating the liquid matrix to generate an aerosol;

[0013] A battery cell for providing power to the heating element;

[0014] A memory, used for storing data on the relationship between the remaining quantity and the electrical parameters;

[0015] The controller is configured to execute the control method of the electronic atomization device.

[0016] The electronic atomization device and control method provided above determine the remaining amount of liquid matrix and its corresponding electrical parameters, and control the battery cell to adjust the power supplied to the heating element, thereby avoiding the problem of burnt taste caused by the large power supplied to the heating element due to the reduction of liquid matrix, thereby improving the user's smoking experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The realization of the purpose, functional features and advantages of this application will be further described in conjunction with the embodiments and with reference to the accompanying drawings. One or more embodiments are exemplarily described by the pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the drawings in the drawings do not constitute a scale limitation.

[0018] Figure 1 is a schematic diagram of an electronic atomization device provided in an embodiment of the present application;

[0019] Figure 2 is a schematic diagram of another electronic atomization device provided in an embodiment of the present application;

[0020] Figure 3 is a specific circuit diagram provided in an embodiment of the present application;

[0021] Figure 4 is a schematic diagram of a control method for an electronic atomization device provided in an embodiment of the present application;

[0022] Figure 5 It is a schematic diagram of the control process of the electronic atomization device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0023] It should be understood that the specific embodiments described herein are only used to explain the present application and are not intended to limit the present application. In order to facilitate the understanding of the present application, the present application is described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element, or there can be one or more centered elements therebetween. When an element is described as "connected to" another element, it can be directly connected to the other element, or there can be one or more centered elements therebetween. The terms "upper", "lower", "left", "right", "inside", "outside" and similar expressions used in this specification are for illustrative purposes only.

[0024] Figure 1It is a schematic diagram of an electronic atomization device provided in an embodiment of the present application.

[0025] like Figure 1 As shown, the electronic atomization device includes a nozzle 11, a liquid storage unit 12, a liquid transfer unit 13, a heating element 14, a circuit 15, a battery 16 and a suction detector 17. Figure 1 In the example, the above components are formed in one piece, and the electronic atomization device is a common one-piece device. Figure 2 As shown, the electronic atomization device includes an atomizer and a power supply assembly detachably connected to the atomizer. The atomizer is usually also called a cigarette cartridge, and the power supply assembly is usually also called a cigarette rod; wherein the circuit 15, the battery cell 16 and the puff detector 17 are in the power supply assembly; the mouthpiece 11, the liquid storage unit 12, the liquid transfer unit 13, and the heating element 14 are in the atomizer.

[0026] The mouthpiece 11 is used for the user to inhale the aerosol generated by heating.

[0027] Liquid storage unit 12 is used to store the liquid matrix that can generate aerosol.Liquid matrix can be the liquid that comprises the tobacco-containing material that contains volatile tobacco flavor component, can also be the liquid that comprises non-tobacco material.For example, liquid matrix can comprise water, solvent, ethanol, plant extract, spices, flavoring agent or vitamin mixture.Spice can comprise menthol, European mint, spearmint oil, various fruity fragrance components etc., but is not limited to this.Flavoring agent can comprise the composition that can provide multiple fragrance or local flavor to the user.Vitamin mixture can be for being mixed with at least a material in vitamin A, vitamin B, vitamin C and the vitamin E, but is not limited to this.In addition, liquid matrix can comprise the aerosol forming agent as glycerine and propylene glycol.

[0028] The liquid transfer unit 13 can transfer the liquid matrix stored in the liquid storage unit 12 to the heating element 14. For example, the liquid transfer unit 13 can be made of cotton fiber, ceramic fiber, glass fiber, or porous ceramic, porous glass or other porous materials, but is not limited thereto.

[0029] The heating element 14 is a component for heating the liquid matrix transferred by the liquid transfer unit 13. For example, the heating element 14 can be a metal wire, a metal plate, a ceramic heater, etc., but is not limited thereto. In addition, the heating element 14 can be composed of a conductive heating wire such as a nickel-chromium wire, and can be arranged to be wound around the liquid transfer unit 13. The heating element 14 can be heated by supplying an electric current, and transfers heat to the liquid matrix in contact with the heating element 14 to heat the liquid matrix, thereby generating an aerosol. In this example, the heating element 14 is made of a material having a suitable temperature coefficient of resistance characteristic, for example: such as stainless steel 316, titanium, nickel, nickel-chromium alloy, etc. In other examples, the heating element 14 can also be a sensor that can be penetrated by a changing magnetic field and generate heat.

[0030] The circuit 15 can control the overall operation of the electronic atomization device. In detail, the circuit 15 not only controls the operation of the battery cell 16 and the heating element 14, but also controls the operation of other components in the electronic atomization device. In addition, the circuit 15 can determine whether the electronic atomization device can be operated by checking the status of the components of the electronic atomization device.

[0031] The circuit 15 includes at least one controller. The controller may include a logic gate array, or may include a combination of a general-purpose microprocessor and a memory storing a program executable in the microprocessor. In addition, those skilled in the art will appreciate that the circuit 15 may include another type of hardware.

[0032] The battery cell 16 provides power for operating the electronic atomization device. For example, the battery cell 16 can provide power to heat the heating element 14, and can provide power required for operating the circuit 15. In addition, the battery cell 16 can provide power required for operating sensors, motors, etc. provided in the electronic atomization device.

[0033] The battery cell 16 may be, but is not limited to, a lithium iron phosphate (LiFePO4) battery. For example, the battery cell 16 may be a lithium cobalt oxide (LiCoO2) battery or a lithium titanate battery. The battery cell 16 may be a rechargeable battery or a disposable battery.

[0034] The puff detector 17 is used to detect the user's puffing action and generate a corresponding electrical signal, that is, to detect whether the electronic atomization device is puffed, so that the circuit 15, such as the controller, controls the operation of the battery 16, the heating element 14, etc. according to the electrical signal, for example, controls the battery 16 to provide power to the heating element 14, so that the heating element 14 heats the atomized liquid matrix. The puff detector 17 can adopt a common pressure sensor, a pressure difference sensor, an airflow sensor, etc.

[0035] An air inlet is provided at a position of the electronic atomization device adjacent to the puff detector 17. When the electronic atomization device is puffed, air flows in through the air inlet, flows through the puff detector 17, the battery cell 16, the circuit 15, the heating element 14, etc., and then flows out through the nozzle 11. The dotted arrow in the figure roughly shows the airflow path.

[0036] It should be noted that Figure 1 Only the components related to this embodiment are shown. A person skilled in the art should understand that the electronic atomization device may also include Figure 1 Other common components other than those shown.

[0037] Figure 3 is a specific circuit diagram provided by an embodiment of the present application. Figure 3 As shown, the components and connections of the circuit include:

[0038] The switch tube Q1 is positioned between the battery core 16 and the heating element 14; when the switch tube Q1 is turned on, the battery core 16 provides power to the heating element 14;

[0039] The resistor R1 is positioned between the switch tube Q2 and the heating element 14. Specifically, the first end of the resistor R1 is connected to the switch tube Q2, and the second end is connected to the heating element 14; the resistor R1 is a standard resistor with a substantially constant resistance value, which is approximately close to the working resistance value of the heating element 14, and is used to form a series connection with the heating element 14 when the switch tube Q2 is turned on, thereby forming a detection loop that can detect the voltage of the resistor R1 and the heating element 14 through a voltage divider. Of course, when detection is not required, the switch tube Q2 is disconnected to disconnect the detection loop.

[0040] exist Figure 2 In the specific implementation shown in , the first end of the heating element 14 is connected to the switch tube Q1 and the resistor R1, and the second end is grounded, that is, the potential of the second end of the heating element 14 is 0.

[0041] Further in Figure 2 In the specific implementation shown, the switch tube Q1 and the switch tube Q2 are controlled to be turned on and off by the controller, and the switch tube Q1 and the switch tube Q2 are not turned on at the same time. When it is necessary to power the heating element 14, the controller controls the switch tube Q1 to be turned on and the switch tube Q2 to be turned off, so that the battery 16 supplies power to the heating element 14; for example, when the puff detector 17 detects the user's puffing action, the controller controls the switch tube Q1 to be turned on and the switch tube Q2 to be turned off; further, the controller can monitor the duration of each puff. When detection is required, the controller controls the switch tube Q1 to be turned off and the switch tube Q2 to be turned on, and the current resistance or temperature of the heating element 14 is determined by detecting the relevant electrical characteristics of the resistor R1 and / or the heating element 14, such as voltage, current, etc., or determining the adverse conditions of the heating element 14.

[0042] Based on the above-mentioned electronic atomization device, in one example, the controller is configured to determine the remaining amount of the liquid matrix stored in the liquid storage unit 12; according to the remaining amount of the liquid matrix, search in the pre-stored relationship data between the remaining amount and the electrical parameters to obtain the electrical parameters corresponding to the remaining amount; according to the electrical parameters found, control the battery cell 16 to adjust the power provided to the heating element 14.

[0043] In this example, the electrical parameter includes at least one of duty cycle, voltage, and power. Taking the duty cycle as an example, the controller can output a PWM pulse signal with a duty cycle of 60% to the switch tube Q1 according to the value of the duty cycle found, such as 60%, to provide the corresponding power to the heating element 14.

[0044] In one example, the electrical parameter is voltage, and the voltage ranges from 3.3V to 4.0V.

[0045] In one example, the duration of one or more suctions is recorded, and the remaining amount of the liquid matrix is ​​determined based on a preset total duration of suction; or,

[0046] The number of aspirations is recorded, and the remaining amount of the liquid medium is determined based on a preset total number of possible aspirations.

[0047] Among them, the total duration of the inhalable is pre-stored in the memory, and the total duration of the inhalable is an empirical value or an experimental value. For example, assuming that the amount of liquid matrix stored in the liquid storage unit at the time of leaving the factory is 2ml (milliliter), and the total duration of the inhalable corresponding to 2ml is about 1200s (seconds), the data is pre-stored in the memory. Assuming that the electronic atomization device is inhaled 6 times (mouths), and the duration (average duration) of each inhalation (each mouth) is 2s, it can be determined by calculation that the remaining amount of the liquid matrix stored in the liquid storage unit is about 1.98ml. It can be understood that in actual applications, the duration of each (each mouth) inhalation can be long or short. For another example, assuming that the amount of liquid matrix stored in the liquid storage unit at the time of leaving the factory is 2ml (milliliter), and the total number of inhalable times corresponding to 2ml is 600 times (mouths), the data is pre-stored in the memory. Assuming that the electronic atomization device is inhaled 6 times (puffs), it can be determined through calculation that the remaining amount of the liquid matrix stored in the liquid storage unit is approximately 1.98 ml.

[0048] In a further implementation, after the puffing is finished, the total puffable duration is updated to the remaining puffable duration, or the total number of puffs is updated to the remaining number of puffs.

[0049] In one example, the relationship data includes a plurality of sets of comparison data of the remaining quantity and the electrical parameter; in different sets of comparison data, as the value of the remaining quantity decreases, the value of the electrical parameter also decreases.

[0050] Taking the comparison data of the remaining amount and voltage in the following table as an example (where Q is the amount of liquid matrix stored in the liquid storage unit at the time of leaving the factory), in each set of comparison data of the remaining amount and voltage, the remaining amount includes an interval with an upper limit value and a lower limit value. For example, in the first set of comparison data of the remaining amount and voltage, the upper limit value is Q and the lower limit value is 0.75Q. Between the comparison data of the remaining amount and voltage of different groups, as the value of the remaining amount decreases, the value of the voltage also decreases, that is, the less the amount of liquid matrix, the smaller the voltage provided to the heating element 14, avoiding the problem of large power provided to the heating element, resulting in the generation of burnt taste, and improving the user's smoking experience.

[0051]

[0052]

[0053] In the above table, the remaining amount is an interval value, and the voltage is a single point value. It can be understood that in other examples, the remaining amount is a single point value, and the voltage is an interval value, which is also feasible.

[0054] In one example, when the remaining amount of the liquid matrix is ​​within a first interval, the battery cell is controlled to provide power to the heating element based on a first electrical parameter;

[0055] When the remaining amount of the liquid matrix is ​​within a second interval, controlling the battery core to provide power to the heating element based on a second electrical parameter;

[0056] The value of the remaining amount in the first interval is greater than the value of the remaining amount in the second interval, and the first electrical parameter is greater than the second electrical parameter.

[0057] For example, when the remaining amount of the liquid matrix is ​​in the range of 0.75*Q to Q, the battery cell is controlled to provide power to the heating element based on a voltage of 4V; when the remaining amount of the liquid matrix is ​​in the range of 0.5*Q to 0.75*Q, the battery cell is controlled to provide power to the heating element based on a voltage of 3.8V.

[0058] In one example, during the interval between the end of the previous puff and the start of the next puff, the remaining amount of the liquid matrix is ​​determined, and the corresponding electrical parameters are determined according to the remaining amount of the liquid matrix; and when the next puff is started, based on the electrical parameters, the battery core is controlled to adjust the power provided to the heating element.

[0059] In this example, the remaining amount of liquid matrix and its corresponding electrical parameters are determined during the puffing interval, and the power supplied to the heating element is adjusted by controlling the battery cell when the next puff is started. Thus, the power supplied to the heating element can be adjusted in time, avoiding the problem of burnt taste caused by the large power supplied to the heating element due to the reduction of liquid matrix, thereby improving the user's puffing experience.

[0060] Figure 4 Schematic diagram of the control method of the electronic atomization device provided in the embodiment of the present application. The electronic atomization device can refer to the above part, and the control method includes:

[0061] Step S11, determining the remaining amount of the liquid matrix;

[0062] Step S12: searching, according to the remaining amount of the liquid matrix, in pre-stored data on the relationship between the remaining amount and the electrical parameters to obtain the electrical parameters corresponding to the remaining amount;

[0063] Step S13: Control the battery cell to adjust the power provided to the heating element according to the found electrical parameters.

[0064] In one example, the duration of one or more suctions is recorded, and the remaining amount of the liquid matrix is ​​determined based on a preset total duration of suction; or,

[0065] The number of aspirations is recorded, and the remaining amount of the liquid medium is determined based on a preset total number of possible aspirations.

[0066] In a specific example, after the puffing is finished, the total puffable duration is updated to the remaining puffable duration, or the total number of puffs is updated to the remaining number of puffs.

[0067] In one example, the electrical parameter includes at least one of duty cycle, voltage, and power.

[0068] In a specific example, the electrical parameter is voltage, and the voltage ranges from 3.3V to 4.0V.

[0069] In one example, the relationship data includes a plurality of sets of comparison data of the remaining quantity and the electrical parameter; in different sets of comparison data, as the value of the remaining quantity decreases, the value of the electrical parameter also decreases.

[0070] In a specific example, in each set of comparison data between the remaining amount and the electrical parameter, the remaining amount includes a range having an upper limit value and a lower limit value.

[0071] In a specific example, when the remaining amount of the liquid matrix is ​​within a first interval, the battery cell is controlled to provide power to the heating element based on a first electrical parameter;

[0072] When the remaining amount of the liquid matrix is ​​within a second interval, controlling the battery core to provide power to the heating element based on a second electrical parameter;

[0073] The value of the remaining amount in the first interval is greater than the value of the remaining amount in the second interval, and the first electrical parameter is greater than the second electrical parameter.

[0074] In one example, during the interval between the end of the previous puff and the start of the next puff, the remaining amount of the liquid matrix is ​​determined, and the corresponding electrical parameters are determined according to the remaining amount of the liquid matrix; and when the next puff is started, based on the electrical parameters, the battery core is controlled to adjust the power provided to the heating element.

[0075] Figure 5 : is a schematic diagram of the control process of the electronic atomization device provided in the embodiment of the present application. The control process specifically includes:

[0076] Step S21, detecting whether the electronic atomization device is being sucked;

[0077] If it is detected that the electronic atomization device is being puffed, step S22 is executed; otherwise, the electronic atomization device is continuously detected to see if it is being puffed.

[0078] Step S22, controlling the power provided by the battery cell to the heating element so that the heating element is heated;

[0079] For example, the controller controls the switch tube Q1 to be turned on to provide maximum power to the heating element 14 .

[0080] Step S23, start timing from the start time of the puff, and detect whether the puff is finished;

[0081] If the current suction is completed, step S24 is executed; otherwise, step S22 is continued.

[0082] Step S24, recording the duration of this puff;

[0083] Step S25, determining the remaining amount of the liquid matrix and its corresponding electrical parameters;

[0084] Specifically, the remaining amount of the liquid matrix can be determined based on the number of puffs (including the current puff), the duration of each puff (including the duration of the current puff), and the total duration of the puff. Then, the remaining amount and the electrical parameter corresponding to the remaining amount are searched in the pre-stored relationship data.

[0085] Step S26, detecting again whether the electronic atomization device has been sucked;

[0086] If it is detected that the electronic atomization device is being puffed, step S27 is executed; otherwise, the electronic atomization device is continuously detected to see if it is being puffed.

[0087] Step S27, controlling the battery cell to adjust the power provided to the heating element;

[0088] Specifically, according to the electrical parameter corresponding to the remaining amount obtained in step S25, the battery cell is controlled to adjust the power provided to the heating element.

[0089] Step S28, start timing from the start time of puffing, and check again whether puffing is finished.

[0090] If the suction is completed again, the control process ends; otherwise, step S27 is continued.

[0091] It should be noted that the preferred embodiments of the present application are given in the specification and drawings of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described in the specification. These embodiments are not used as additional limitations on the content of the present application. The purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive. In addition, the above-mentioned technical features continue to be combined with each other to form various embodiments not listed above, which are all regarded as the scope of the description of the present application; further, for ordinary technicians in this field, they can be improved or transformed according to the above description, and all these improvements and transformations should belong to the scope of protection of the claims attached to the present application.

Claims

1. A control method for an electronic atomization device, the electronic atomization device comprising: a liquid storage unit for storing a liquid matrix; a heating element for heating the liquid matrix to generate an aerosol; A battery cell is used to provide power to the heating element; wherein the method comprises: determining the remaining amount of the liquid matrix; According to the remaining amount of the liquid matrix, searching in pre-stored data on the relationship between the remaining amount and the electrical parameter to obtain the electrical parameter corresponding to the remaining amount; According to the found electrical parameter, the battery cell is controlled to adjust the power provided to the heating element.

2. The method according to claim 1, characterized in that The control method further comprises: Recording the duration of one or more aspirations and determining the remaining amount of the liquid matrix based on a preset total aspiration duration; or, The number of aspirations is recorded, and the remaining amount of the liquid medium is determined based on a preset total number of possible aspirations.

3. The method according to claim 2, characterized in that The control method further comprises: After the puffing is finished, the total puffable duration is updated to the remaining puffable duration, or the total number of puffs is updated to the remaining number of puffs.

4. The method according to claim 1, 2 or 3, characterized in that: The electrical parameter includes at least one of duty cycle, voltage, and power.

5. The method according to claim 4, characterized in that The electrical parameter is voltage, and the voltage ranges from 3.3V to 4.0V.

6. The method according to claim 1, characterized in that The relationship data includes a plurality of groups of comparison data of the remaining quantity and the electrical parameter; in the comparison data of different groups, as the value of the remaining quantity decreases, the value of the electrical parameter also decreases.

7. The method according to claim 6, characterized in that In each set of comparison data between the remaining amount and the electrical parameter, the remaining amount includes a range having an upper limit value and a lower limit value.

8. The method according to claim 6, characterized in that The control method further comprises: When the remaining amount of the liquid matrix is ​​within a first interval, controlling the battery core to provide power to the heating element based on a first electrical parameter; When the remaining amount of the liquid matrix is ​​within a second interval, controlling the battery core to provide power to the heating element based on a second electrical parameter; The value of the remaining amount in the first interval is greater than the value of the remaining amount in the second interval, and the first electrical parameter is greater than the second electrical parameter.

9. The method according to claim 1, characterized in that: The control method further comprises: During the interval between the end of the previous puff and the start of the next puff, the remaining amount of the liquid matrix is ​​determined, and the corresponding electrical parameters are determined according to the remaining amount of the liquid matrix; and when the next puff is started, based on the electrical parameters, the battery core is controlled to adjust the power provided to the heating element.

10. An electronic atomization device, characterized in that: include: a liquid storage unit for storing a liquid matrix; a heating element for heating the liquid matrix to generate an aerosol; A battery cell for providing power to the heating element; A memory, used for storing data on the relationship between the remaining quantity and the electrical parameters; The controller is configured to execute the control method of the electronic atomization device described in any one of claims 1-9.

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