CN107404940A - Atomizer control circuit, electronic cigarette and its atomizer of a kind of electronic cigarette - Google Patents
Atomizer control circuit, electronic cigarette and its atomizer of a kind of electronic cigarette Download PDFInfo
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- CN107404940A CN107404940A CN201580077162.8A CN201580077162A CN107404940A CN 107404940 A CN107404940 A CN 107404940A CN 201580077162 A CN201580077162 A CN 201580077162A CN 107404940 A CN107404940 A CN 107404940A
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- atomizer
- electric energy
- airflow
- detection module
- control circuit
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- 239000003571 electronic cigarette Substances 0.000 title claims abstract description 100
- 238000001514 detection method Methods 0.000 claims abstract description 87
- 230000000391 smoking effect Effects 0.000 claims abstract description 71
- 238000010438 heat treatment Methods 0.000 claims abstract description 54
- 238000012937 correction Methods 0.000 claims description 53
- 241000208125 Nicotiana Species 0.000 claims description 11
- 235000002637 Nicotiana tabacum Nutrition 0.000 claims description 11
- 230000005669 field effect Effects 0.000 claims description 2
- 229920000742 Cotton Polymers 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 10
- 239000000779 smoke Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- 239000006199 nebulizer Substances 0.000 description 7
- 230000000087 stabilizing effect Effects 0.000 description 7
- 238000001816 cooling Methods 0.000 description 6
- 239000003990 capacitor Substances 0.000 description 3
- 238000005070 sampling Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Classifications
-
- 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
- A24F40/50—Control or monitoring
- A24F40/53—Monitoring, e.g. fault detection
-
- 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
- A24F40/50—Control or monitoring
- A24F40/51—Arrangement of sensors
-
- 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
- A24F40/10—Devices using liquid inhalable precursors
Landscapes
- Control Of Resistance Heating (AREA)
Abstract
提供一种电子烟的雾化器控制电路、电子烟及其雾化器。雾化器控制电路包括主控制器（11）、晶体管开关模块（12）、发热元件（13）、功率检测模块（14）和存储模块（15）；主控制器（11）用于根据功率检测模块（14）检测到的雾化器得到的功率或者功率检测模块（14）提供的计算雾化器得到的功率的参数计算雾化器接收到的电能量，然后根据雾化器接收到的电能量和存储模块（15）保存的雾化器累计接收到的总电能量，得到更新后的雾化器累计接收到的总电能量，并控制存储模块（15）保存更新后的雾化器累计接收到的总电能量，当雾化器累计接收到的总电能量大于或等于预设的电能量阈值时，控制晶体管开关模块（12）断开发热元件（13）的电路回路。包括所述雾化器控制电路的电子烟可以防止无油吸烟，避免烧棉，改善口感。
Provided are an atomizer control circuit of an electronic cigarette, an electronic cigarette and an atomizer thereof. The atomizer control circuit includes a main controller (11), a transistor switch module (12), a heating element (13), a power detection module (14) and a storage module (15); the main controller (11) is used to detect The power obtained by the atomizer detected by the module (14) or the parameters provided by the power detection module (14) to calculate the power obtained by the atomizer calculate the electric energy received by the atomizer, and then according to the power received by the atomizer The energy and storage module (15) saves the accumulated total electric energy received by the atomizer, obtains the accumulated total electric energy received by the updated atomizer, and controls the storage module (15) to save the updated accumulated electric energy of the atomizer. The total electric energy received, when the accumulative total electric energy received by the atomizer is greater than or equal to the preset electric energy threshold, the transistor switch module (12) is controlled to disconnect the circuit loop of the heating element (13). The electronic cigarette including the atomizer control circuit can prevent oil-free smoking, avoid burning cotton, and improve taste.
Description
The invention name is as follows: atomizer control circuit of electronic cigarette, electronic cigarette and atomizer technical field thereof
[0001] The invention belongs to the field of electronic cigarettes, and particularly relates to an atomizer control circuit of an electronic cigarette, the electronic cigarette and an atomizer of the electronic cigarette.
Background
[0002] In the atomizer of the electronic cigarette in the prior art, after the tobacco tar is sucked dry, if the tobacco tar is continuously sucked, the battery assembly of the electronic cigarette can still continuously drive the heating element of the atomizer for atomizing the tobacco tar to generate heat. However, if the heating element of the atomizer is continuously driven to generate heat after the tobacco tar is dried, the atomizer with cotton can burn cotton, generate harmful substances, affect the taste and the health.
Technical problem
[0003] The invention aims to provide an atomizer control circuit of an electronic cigarette, the electronic cigarette and an atomizer of the electronic cigarette, and aims to solve the problem that when tobacco tar is sucked dry, the electronic cigarette in the prior art can continuously drive a heating element of the atomizer to generate heat, so that harmful substances are generated.
Solution to the problem
Technical solution
[0004] In a first aspect, the invention provides an atomizer control circuit of an electronic cigarette, the atomizer control circuit comprises a main controller, a transistor-assisted consumer module and a heating element which are electrically connected in sequence, and the atomizer control circuit further comprises a power detection module and a storage module which are respectively electrically connected with the main controller;
[0005] the transistor second-off module is used for conducting or breaking a circuit loop of the second-off heat-generating component;
[0006] the power detection module is used for detecting the power obtained by the atomizer or providing parameters for calculating the power obtained by the atomizer for the main controller;
[0007] the main controller is used for calculating the electric energy received by the atomizer according to the power obtained by the atomizer detected by the power detection module or the parameter provided by the power detection module and used for calculating the power obtained by the atomizer, then obtaining the updated total electric energy accumulated and received by the atomizer according to the electric energy received by the atomizer and the total electric energy accumulated and received by the atomizer and stored by the storage module, controlling the storage module to store the updated total electric energy accumulated and received by the atomizer, and controlling the transistor to turn off the circuit loop of the heating element when the total electric energy accumulated and received by the atomizer is greater than or equal to a preset electric energy threshold value inch.
[0008] Furthermore, the atomizer control circuit also comprises a temperature detection module electrically connected with the main controller; [0009] the temperature detection module is used for detecting the temperature of airflow in the smoking inch atomizer;
[0010] the main controller is further used for generating a first correction coefficient according to the temperature of the airflow in the smoking inch atomizer detected by the temperature detection module, and controlling the transistor emission module to break the circuit loop of the second heat-generating element when the product of the total electric energy accumulated and received by the atomizer and the first correction coefficient is larger than or equal to a preset electric energy threshold value inch.
[0011] Furthermore, the atomizer control circuit also comprises an airflow detection module electrically connected with the main controller;
[0012] the airflow detection module is used for detecting the airflow speed in the smoking inch atomizer;
[0013] the main controller is further used for generating a second correction coefficient according to the air flow speed in the smoking inch atomizer detected by the air flow detection module, and controlling the transistor fire-protection module to break the circuit loop of the fire-protection heating element when the product of the total electric energy accumulated and received by the atomizer and the second correction coefficient is larger than or equal to a preset electric energy threshold value inch.
[0014] Furthermore, the atomizer control circuit also comprises a temperature detection module and an airflow detection module which are respectively electrically connected with the main controller;
[0015] the temperature detection module is used for detecting the temperature of airflow in the smoking inch atomizer;
[0016] the airflow detection module is used for detecting the airflow speed in the smoking inch atomizer;
[0017] the main controller is further used for generating a first correction coefficient according to the temperature of the airflow in the smoking inch atomizer detected by the temperature detection module, generating a second correction coefficient according to the airflow speed in the smoking inch atomizer detected by the airflow detection module, and controlling the transistor information distribution module to break a circuit loop of the heating element when the total electric energy accumulated and received by the atomizer and the product of the first correction coefficient and the second correction coefficient are greater than or equal to a preset electric energy threshold value inch.
[0018] Further, the memory module is integrated in a main controller.
[0019] Further, the main controller is a single chip microcomputer, and the single chip microcomputer comprises a positive power supply pin VDD, a reference ground pin GND, a first pin GP0, a third pin GP2, a fourth pin GP3, a fifth pin GP4 and a sixth pin GP5;
[0020] a positive power supply pin VDD of the single chip microcomputer is connected with a third port of a power interface J1 of the atomizer, a reference ground pin GND of the single chip microcomputer is grounded, a fifth pin GP4 of the single chip microcomputer is connected with a third port of a power interface J1 of the atomizer, a sixth pin GP5 of the single chip microcomputer is connected with a second port of a power interface J1 of the atomizer, wherein the power interface J1 is used for being electrically connected with a battery pack of the electronic cigarette; [0021] the transistor fire-fighting module comprises a fire-fighting pipe Ql, a grid G of the fire-fighting pipe Ql is connected with a fourth pin GP3 of the single chip microcomputer, the grid G of the fire-fighting pipe Ql is also connected with a source S of the fire-fighting pipe Ql, a drain D of the fire-fighting pipe Q1 is connected with a first end of a heating element R1, the source S of the fire-fighting pipe Q1 is connected with a fifth pin GP4 of the single chip microcomputer, and the source S of the fire-fighting pipe Ql is also connected with a third port of a power interface J1 of the atomizer;
[0022] the power detection module comprises a second resistor R2, a third resistor R3 and a fourth resistor R4, a third pin GP2 of the single chip microcomputer is connected with a first end of the second resistor R2, a second end of the second resistor R2 is grounded, a second end of the heating element R1 is connected with a first end of the second resistor R2, a first port of a power interface J1 of the atomizer is grounded, a first pin GP0 of the single chip microcomputer is connected with a series end of the third resistor R3 and the fourth resistor R4, the other end of the third resistor R3 is connected with a first end of the heating element R1, and the other end of the fourth resistor R4 is grounded.
[0023] Further, the single chip microcomputer further comprises a second pin GP1, the atomizer control circuit further comprises a temperature detection module, the temperature detection module comprises a thermal resistor R7, an eighth resistor R8 and a voltage stabilizing module, wherein the second pin GP1 of the single chip microcomputer is connected with the series end of the thermal resistor R7 and the eighth resistor R8, the other end of the thermal resistor R7 is grounded, the other end of the eighth resistor R8 is connected with the first end of the voltage stabilizing module, the second end of the voltage stabilizing module is grounded, and the third end of the voltage stabilizing module is connected with the first end of the thermal element R1.
[0024] Further, the singlechip also comprises a second pin GP1, the atomizer control circuit also comprises an airflow detection module, the airflow detection module is an airflow speed sensor, one end of the airflow speed sensor is connected with the second pin GP1 of the singlechip, and the other end of the airflow speed sensor is grounded.
[0025] In a second aspect, the invention provides an atomizer of an electronic cigarette, which includes the above atomizer control circuit of an electronic cigarette.
[0026] In a third aspect, the invention provides an electronic cigarette, which includes the atomizer of the electronic cigarette
Advantageous effects of the invention
Advantageous effects
[0027] In the invention, the atomizer control circuit comprises a main controller, a transistor development and shutdown module, a heating element, a power detection module and a storage module; the main controller calculates the electric energy received by the atomizer according to the power obtained by the atomizer detected by the power detection module or the parameter provided by the power detection module and used for calculating the power obtained by the atomizer, then accumulates the received total electric energy according to the electric energy received by the atomizer and the total electric energy accumulated by the atomizer and stored by the storage module to obtain the updated total electric energy accumulated and received by the atomizer, controls the storage module to store the updated total electric energy accumulated and received by the atomizer, and controls the transistor to turn off the module to break a circuit loop of the heating element when the total electric energy accumulated and received by the atomizer is greater than or equal to a preset electric energy threshold value inch. Therefore, the electronic cigarette can prevent oil-free smoking, avoid cotton burning and improve the taste. Brief description of the drawings
Drawings
[0028] Fig. 1 is a functional block diagram of an atomizer control circuit of an electronic cigarette according to an embodiment of the present invention.
[0029] Fig. 2 is a specific circuit diagram of an atomizer control circuit of an electronic cigarette according to an embodiment of the present invention.
[0030] Fig. 3 is a functional block diagram of an atomizer control circuit of an electronic cigarette according to a second embodiment of the present invention.
[0031] Fig. 4 is a specific circuit diagram of an atomizer control circuit of an electronic cigarette according to a second embodiment of the present invention.
[0032] Fig. 5 is a functional block diagram of an atomizer control circuit of an electronic cigarette according to a third embodiment of the present invention.
[0033] Fig. 6 is a specific circuit diagram of an atomizer control circuit of an electronic cigarette according to a third embodiment of the present invention.
[0034] Fig. 7 is a schematic diagram of an atomizer control circuit of an electronic cigarette according to a fourth embodiment of the present invention.
Modes for carrying out the invention
[0035] In order to make the objects, technical solutions and advantages of the present invention more clearly apparent, the present invention is described in further detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
[0036] In order to explain the technical means of the present invention, the following description will be given by way of specific examples.
[0037] The first embodiment is as follows:
[0038] referring to fig. 1, an atomizer control circuit of an electronic cigarette according to an embodiment of the present invention includes a main controller 11, a transistor-assisted module 12, and a heating element 13 electrically connected in sequence, and further includes a power detection module 14 and a storage module 15 electrically connected to the main controller 11, respectively.
[0039] The transistor second module 12 is configured to turn on or turn off the second heat-generating element 13. In the first embodiment of the present invention, the transistor boost module 12 may be a field effect transistor boost element or a transistor boost element.
[0040] The power detection module 14 is used to detect the power drawn by the nebulizer or provide the main controller 11 with parameters that calculate the power drawn by the nebulizer. In the first embodiment of the present invention, the parameters for calculating the power obtained by the atomizer include the voltage across the heating element 13 and the current flowing through the heating element 13.
[0041] The main controller 11 is configured to calculate electric energy received by the atomizer according to the power obtained by the atomizer detected by the power detection module 14 or a parameter provided by the power detection module 14 and used for calculating the power obtained by the atomizer, then obtain total electric energy cumulatively received by the atomizer after updating according to the electric energy received by the atomizer and the total electric energy cumulatively received by the atomizer stored in the storage module 15, and control the storage module 15 to store the total electric energy cumulatively received by the atomizer after updating, and when the total electric energy cumulatively received by the atomizer is greater than or equal to a preset electric energy threshold value inch, control the transistor to turn off the module 12 to turn off a circuit of the heating element.
[0042] In the first embodiment of the present invention, calculating the electric energy received by the nebulizer according to the power obtained by the nebulizer and detected by the power detection module 14 or the parameter provided by the power detection module 14 and used for calculating the power obtained by the nebulizer specifically includes: and calculating the electric energy received by the atomizer according to the recorded smoking time and the power obtained by the atomizer and detected by the power detection module 14, or calculating the electric energy received by the atomizer according to the recorded smoking time and the parameter provided by the power detection module 14 and used for calculating the power obtained by the atomizer. In one embodiment, the preset electric energy threshold is the electric energy of all the tobacco tar in the atomized electronic cigarette, and it is understood that, preferably, in order to better avoid burning cotton and keep the smoke volume stable, the preset electric energy threshold is slightly smaller than the electric energy of all the tobacco tar in the atomized electronic cigarette. The electric energy received by the atomizer is equal to the product of the power obtained by the atomizer and smoking inches. Namely: w = P × T, wherein W represents the amount of electric energy received by the atomizer, P represents the power drawn by the atomizer, and T represents the smoking time.
[0043] Wherein the power drawn by the atomizer is equal to the product of the voltage across the heating element 13 and the current through the heating element 13. Namely: p = U × I, where P denotes the power drawn by the atomizer, U denotes the voltage across the heating element 13, and I denotes the current flowing through the heating element 13. In the first embodiment of the present invention, the main controller 11 may be a single chip microcomputer, such as MC32P7010A0I, or a single chip microcomputer with a nonvolatile memory, such as PIC12F 510.
[0044] In the first embodiment of the present invention, the storage module 15 may be integrated in the main controller 11, and the storage module 15 may be a nonvolatile memory.
[0045] When the power detection module 14 is configured to detect a power inch obtained by the atomizer, the atomizer control circuit of the electronic cigarette according to the first embodiment of the present invention operates as follows: the electronic cigarette atomizer is powered on when a battery pack of the electronic cigarette supplies power to the atomizer for the first time, the main controller 11 is powered on and starts to work, so that the main controller 11 obtains power obtained by the atomizer through the power detection module 14, the main controller 11 also records smoking time, electric energy received by the electronic cigarette atomizer for the first time is obtained through the product of the power obtained by the atomizer and the smoking time, and the electric energy is stored in the storage module 15 for the next time of electronic cigarette smoking to calculate the total electric energy accumulated by the atomizer. And after the electronic cigarette is powered on next time, the main controller 11 reads the electric energy received by the electronic cigarette atomizer which is powered on for the first time from the storage module 15, calculates the electric energy received by the current atomizer by adopting a calculation mode of calculating the electric energy received by the electronic cigarette atomizer which is powered on for the first time, calculates the sum of the electric energy received by the electronic cigarette atomizer which is powered on for the first time and the electric energy received by the current atomizer to be the total electric energy received by the updated atomizer, then stores the total electric energy into the storage module 15, powers on the electronic cigarette for the next time, calculates the total electric energy received by the updated atomizer by analogy, and controls the transistor switch module 12 to break a circuit loop of the heating element until the total electric energy received by the updated atomizer is greater than or equal to a preset electric energy threshold value.
[0046] When the power detection module 14 is configured to provide the main controller 11 with a parameter "for calculating power obtained by the atomizer, the atomizer control circuit of the electronic cigarette provided in the first embodiment of the present invention operates as follows: when the battery pack of the electronic cigarette supplies power to the atomizer, the main controller 11 is powered on and starts to work, so that the main controller 11 obtains parameters for calculating the power obtained by the atomizer through the power detection module 14, the main controller 11 also records the smoking time, obtains the electric energy received by the atomizer of the electronic cigarette for the first time according to the recorded smoking time and the parameters for calculating the power obtained by the atomizer, and stores the electric energy to the storage module 15 for the next time for calculating the total electric energy accumulated by the atomizer of the electronic cigarette for the next time. After the electronic cigarette is powered on next time, the main controller 11 reads the electric energy received by the electronic cigarette time atomizer for the first time from the storage module 15, calculates the electric energy received by the current atomizer by adopting a calculation mode of calculating the electric energy received by the electronic cigarette time atomizer for the first time, calculates the sum of the electric energy received by the electronic cigarette time atomizer for the first time and the electric energy received by the current atomizer to be the total electric energy cumulatively received by the updated atomizer, then stores the total electric energy into the storage module 15, and then powers on the electronic cigarette time next time, calculates the total electric energy cumulatively received by the updated atomizer by analogy, and controls the transistor closing module 12 to break a circuit loop of the heating element until the total electric energy cumulatively received by the updated atomizer is greater than or equal to a preset electric energy threshold value.
[0047] Fig. 2 is a specific circuit diagram of an atomizer control circuit of an electronic cigarette according to an embodiment of the present invention
[0048] The main controller is a single chip microcomputer (for example, a single chip microcomputer with the model number of PIC12F 510) integrated with a storage module. The single chip microcomputer comprises a positive power supply pin VDD, a reference ground pin GND, a first pin GP0, a third pin GP2, a fourth pin GP3, a fifth pin GP4 and a sixth pin GP 5. The positive power supply pin VDD of the single chip microcomputer is connected with the third port 3 (the first diode D1 can also be omitted) of the power interface J1 of the atomizer through the first diode D1, the positive electrode of the first diode Dl is connected with the third port 3 of the power interface Jl of the atomizer, the negative electrode of the first diode D1 is connected with the positive power supply pin VDD of the single chip microcomputer, the positive power supply pin VDD of the single chip microcomputer can be grounded through the first capacitor C1, and the reference ground pin GND of the single chip microcomputer is grounded. The fifth pin GP4 of the single chip microcomputer is connected with the third port 3 of the power interface J1 of the atomizer and used for detecting the level of the power supply of the electronic cigarette to the atomizer, so that the atomizer can be detected to smoke in different inches and stop in different inches. The sixth pin GP5 of singlechip is connected with the second port 2 of the power interface J1 of the atomizer, the atomizer can realize the communication with the battery pack of the electronic cigarette through the connection of the sixth bow I pin GP5 of the singlechip and the second port 2 of the power interface J1, for example, the battery pack can read the total electric energy accumulated and received by the atomizer, and thereby the power supply is controlled by the power supply to supply power to the atomizer. The power interface J1 is used to electrically connect with a battery pack of an electronic cigarette, that is, the battery pack and the atomizer in the first embodiment of the present invention are in a detachable connection structure, and the atomizer is connected with the battery pack through the power interface J1. It is to be understood that the battery pack and the atomizer may be a non-detachable integral structure, and the structure thereof is not particularly limited herein.
[0049] The transistor boost switch module comprises a boost switch tube Ql, a grid electrode G of a boost switch tube Q1 is connected with a fourth pin GP3 (also can be without a sixth resistor R6) of a singlechip through a sixth resistor R6, the grid electrode G of the boost switch tube Q1 is connected with a source electrode S (also can be without a fifth resistor R5) of a boost switch tube Q1 through a fifth resistor R5, a drain electrode D of the boost switch tube Q1 is connected with a first end of a heating element R1, the source electrode S of the boost switch tube Q1 is connected with a fifth pin GP4 of the singlechip, and the source electrode S of the boost switch tube Q1 is further connected with a third port 3 of a power interface J1 of an atomizer. The fourth pin GP3 of the single chip microcomputer is used for output control, controlling the connection and disconnection of the rechargeable switching tube, and conducting the rechargeable switching tube in low-level inches.
[0050] The power detection module includes a second resistor R2, a third resistor R3, and a fourth resistor R4. The second resistor R2 is a current sampling resistor, and the third resistor R3 and the fourth resistor R4 are load voltage sampling resistors. The third pin GP2 of the single chip microcomputer is connected with the first end of the second resistor R2, the second end of the second resistor R2 is grounded, and the second end of the heating element R1 is connected with the first end of the second resistor R2. The first port 1 of the power interface J1 of the nebulizer is grounded. The first pin GP0 of the single chip microcomputer is connected with the series end of a third resistor R3 and a fourth resistor R4, the other end of the third resistor R3 is connected with the first end of a heating element R1, and the other end of the fourth resistor R4 is grounded.
[0051] The working process of the atomizer control circuit of the electronic cigarette provided by the embodiment of the invention is as follows:
[0052] the atomizer obtains electric inches, the single chip microcomputer can start to work, the voltage U at two ends of the heating element R1 is detected through a first pin GP0, the current I flowing through the heating element R1 is detected through a third pin GP2, the power P obtained by the atomizer is calculated through a formula P = U I, the electric energy W received by the atomizer is calculated through a formula W = P T by the same inch single chip microcomputer through a fifth bow I pin GP4, the smoking time of the atomizer is stopped, the total smoking time T is recorded, and the electric energy W received by the atomizer is stored for accumulating the next smoking time, namely the total electric energy received by the atomizer is updated through the next smoking time. When the total electric energy received by the updated atomizer is less than the preset electric energy threshold value inch, the rechargeable switch tube Q1 is conducted, and then the atomizer works normally; when the total accumulated received electric energy of the updated atomizer is greater than or equal to the preset electric energy valve value inch, the fourth pin GP3 of the single chip microcomputer outputs high level, the switching tube Q1 is disconnected, namely the circuit loop of the heating element R1 is disconnected, and the atomizer is controlled to excessively smoke.
[0053] In the first embodiment of the invention, the atomizer control circuit of the electronic cigarette comprises a main controller, a transistor-assisted module, a heating element, a power detection module and a storage module; the main controller calculates the electric energy received by the atomizer according to the power obtained by the atomizer detected by the power detection module or the parameter provided by the power detection module and used for calculating the power obtained by the atomizer, then obtains the updated total electric energy cumulatively received by the atomizer according to the electric energy received by the atomizer and the total electric energy cumulatively received by the atomizer and stored by the storage module, controls the storage module to store the updated total electric energy cumulatively received by the atomizer, and controls the transistor to turn off the circuit loop of the heating element when the total electric energy cumulatively received by the atomizer is larger than or equal to a preset electric energy threshold value inch. Therefore, the electronic cigarette can prevent oil-free smoking, avoid burning cotton and improve the taste.
[0054] Example two:
[0055] referring to fig. 3, a difference between the atomizer control circuit of the electronic cigarette according to the second embodiment of the present invention and the atomizer control circuit of the electronic cigarette according to the first embodiment of the present invention is: the atomizer control circuit of the electronic cigarette provided by the second embodiment of the present invention further includes a temperature detection module 26 electrically connected to the main controller. The temperature detection module 26 is used for detecting the temperature of the airflow in the smoking inch atomizer. The cooling effect on the heating element is enhanced if the temperature of the airflow is low, and the cooling effect on the heating element is reduced if the temperature of the airflow is high, so that under the condition that the electric energy received by the atomizer is equal, the temperature of the airflow in the smoking inch atomizer is low relative to the temperature of the airflow, and a relatively small amount of smoke oil can be atomized, so that the total electric energy cumulatively received by the atomizer is greater than the preset electric energy threshold value inch, and the smoke oil in the electronic cigarette is not atomized yet, so that the total electric energy cumulatively received by the atomizer can be corrected through the temperature of the airflow in the smoking inch atomizer detected by the temperature detection module 26. When the temperature of the airflow in the smoking inch atomizer is greater than the standard temperature inch, the first correction coefficient K >1, when the temperature of the airflow in the smoking inch atomizer is less than the standard temperature inch, the first correction coefficient K <1, and when the temperature of the airflow in the smoking inch atomizer is equal to the standard temperature inch, the first correction coefficient K = l. [0056] Therefore, in the second embodiment of the present invention, the main controller is further configured to generate a first correction coefficient according to the temperature of the airflow in the smoke-absorbing inch atomizer detected by the temperature detection module 26, and control the transistor and the shutdown module to shut down the circuit loop of the heat-generating component when a product of the total electric energy cumulatively received by the atomizer and the first correction coefficient is greater than or equal to a preset electric energy threshold value inch.
[0057] Please refer to fig. 4, which is a specific circuit diagram of an atomizer control circuit of an electronic cigarette according to a second embodiment of the present invention, and a difference between the specific circuit of the atomizer control circuit of the electronic cigarette according to the second embodiment of the present invention and the specific circuit of the atomizer control circuit of the electronic cigarette according to the first embodiment of the present invention shown in fig. 2 is that the specific circuit of the atomizer control circuit of the electronic cigarette according to the second embodiment of the present invention further includes a temperature detection module, and the temperature detection module includes a thermal resistor R7, an eighth resistor R8, and a voltage stabilization module. The second pin GP1 of the single chip microcomputer is connected with the series end of the thermal resistor R7 and the eighth resistor R8, the other end of the thermal resistor R7 is grounded, the other end of the eighth resistor R8 is connected with the first end of the voltage stabilizing module, the second end of the voltage stabilizing module is grounded, and the third end of the voltage stabilizing module is connected with the first end of the heating element R1.
[0058] In the second embodiment of the present invention, the atomizer control circuit of the electronic cigarette includes a temperature detection module, and the main controller is further configured to generate a first correction coefficient according to the temperature of the airflow in the smoking inch atomizer detected by the temperature detection module, and when a product of the total electric energy accumulated and received by the atomizer and the first correction coefficient is greater than or equal to a preset electric energy threshold value inch, control the transistor shutdown module to disconnect the circuit loop of the heating element. Therefore, the circuit loop of the second heat-generating component can be switched off after all the tobacco tar in the electronic cigarette is atomized more accurately.
[0059] Example three:
[0060] referring to fig. 5, a difference between the atomizer control circuit of the electronic cigarette according to the third embodiment of the present invention and the atomizer control circuit of the electronic cigarette according to the first embodiment of the present invention is: the atomizer control circuit of the electronic cigarette provided by the second embodiment of the present invention further includes an airflow detection module 36 electrically connected to the main controller. The airflow detection module 36 is configured to detect an airflow velocity in the smoking-inch nebulizer. When the airflow for smoking is fast, the cooling effect on the heating element is strengthened, and when the airflow for smoking is slow, the cooling effect on the heating element is reduced, so that under the condition that the electric energy received by the atomizer is equal, the airflow speed in the smoking inch atomizer is fast relative to the airflow speed which is slow, and less smoke oil can be atomized, therefore, the total electric energy received by the atomizer in an accumulated mode is larger than the preset electric energy valve value inch, and the smoke oil in the electronic cigarette is not atomized, so that the total electric energy received by the atomizer in an accumulated mode can be corrected through the airflow speed in the smoking inch atomizer detected by the airflow detection module 36. When the air flow speed in the smoking inch atomizer is larger than the standard speed inch, the second correction coefficient K is smaller than 1, when the air flow speed in the smoking inch atomizer is smaller than the standard speed inch, the second correction coefficient K is larger than 1, and when the air flow speed in the smoking inch atomizer is equal to the standard speed inch, the second correction coefficient K = l.
[0061] Therefore, in the third embodiment of the present invention, the main controller is further configured to generate a second correction coefficient according to the airflow speed in the smoke-absorbing inch atomizer detected by the airflow detection module 36, and when a product of the total accumulated received electric energy of the atomizer and the second correction coefficient is greater than or equal to a preset electric energy threshold value inch, control the transistor fire-enabling module to break the circuit loop of the fire-enabling heating element.
[0062] Referring to fig. 6, a specific circuit diagram of an atomizer control circuit of an electronic cigarette according to a third embodiment of the present invention is shown, and the specific circuit of the atomizer control circuit of the electronic cigarette according to the third embodiment of the present invention is different from the specific circuit of the atomizer control circuit of the electronic cigarette according to the first embodiment of the present invention shown in fig. 2 in that the specific circuit of the atomizer control circuit of the electronic cigarette according to the third embodiment of the present invention further includes an airflow detection module, the airflow detection module is an airflow speed sensor, one end of the airflow speed sensor is connected to the second pin GP1 of the monolithic computer, and the other end of the airflow speed sensor is grounded through the first capacitor C1 (the first capacitor C1 may not be included).
[0063] In the third embodiment of the present invention, the atomizer control circuit of the electronic cigarette includes an airflow detection module, and the main controller is further configured to generate a second correction coefficient according to the airflow speed in the smoking time atomizer detected by the airflow detection module, and when a product of the total electric energy cumulatively received by the atomizer and the second correction coefficient is greater than or equal to a preset electric energy threshold value time, control the transistor and the shutdown module to disconnect the circuit loop of the heating element. Therefore, the circuit loop of the second heat-generating component can be switched off after all the tobacco tar in the electronic cigarette is atomized more accurately.
[0064] Example four:
[0065] referring to fig. 7, a difference between the atomizer control circuit of the electronic cigarette according to the fourth embodiment of the present invention and the atomizer control circuit of the electronic cigarette according to the second embodiment of the present invention is: the atomizer control circuit of the electronic cigarette provided by the fourth embodiment of the present invention further includes an airflow detection module 47 electrically connected to the main controller. The airflow detection module 47 is used for detecting the airflow speed in the smoking-inch atomizer. When the airflow for smoking is fast, the cooling effect on the heating element is strengthened, and when the airflow for smoking is slow, the cooling effect on the heating element is reduced, so that under the condition that the electric energy received by the atomizer is equal, the airflow speed in the smoking inch atomizer is fast relative to the airflow speed which is slow, and less smoke oil can be atomized, therefore, the total electric energy received by the atomizer in an accumulated mode is larger than the preset electric energy valve value inch, and the smoke oil in the electronic cigarette is not atomized, so that the total electric energy received by the atomizer in an accumulated mode can be corrected through the airflow speed in the smoking inch atomizer detected by the airflow detection module 47. When the air flow speed in the smoking inch atomizer is larger than the standard speed inch, the second correction coefficient K is smaller than 1, when the air flow speed in the smoking inch atomizer is smaller than the standard speed inch, the second correction coefficient K is larger than 1, and when the air flow speed in the smoking inch atomizer is equal to the standard speed inch, the second correction coefficient K = l.
[0066] Therefore, in the fourth embodiment of the present invention, the main controller is further configured to generate a first correction coefficient according to the temperature of the airflow in the smoke-absorbing inch atomizer detected by the temperature detection module 46, generate a second correction coefficient according to the airflow speed in the smoke-absorbing inch atomizer detected by the airflow detection module 47, and control the transistor shutdown module to disconnect the circuit loop of the heating element when the total accumulated received electric energy of the atomizer and the product of the first correction coefficient and the second correction coefficient are greater than or equal to the preset electric energy threshold value inch.
[0067] In a fourth embodiment of the present invention, the atomizer control circuit of the electronic cigarette includes an airflow detection module and a temperature detection module, and the main controller is further configured to generate a first correction coefficient according to the temperature of the airflow in the smoking atomizer detected by the temperature detection module, generate a second correction coefficient according to the airflow speed in the smoking atomizer detected by the airflow detection module, and control the transistor switch module to disconnect the circuit loop of the heating element when the total electric energy cumulatively received by the atomizer and a product of the first correction coefficient and the second correction coefficient is greater than or equal to a preset electric energy threshold value inch. Therefore, the circuit loop of the heat dissipation element can be disconnected after all the tobacco tar in the electronic cigarette is atomized more accurately.
[0068] The invention also provides an atomizer of the electronic cigarette, which comprises the first embodiment and the second embodiment
And a third or fourth atomizer control circuit of the electronic cigarette.
[0069] The invention further provides an electronic cigarette which comprises the atomizer of the electronic cigarette.
[0070] The above description is only exemplary of the present invention and should not be taken as limiting the invention, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (14)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2015/077100 WO2016168986A1 (en) | 2015-04-21 | 2015-04-21 | Atomizer control circuit of electronic cigarette, electronic cigarette and atomizer thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107404940A true CN107404940A (en) | 2017-11-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201580077162.8A Pending CN107404940A (en) | 2015-04-21 | 2015-04-21 | Atomizer control circuit, electronic cigarette and its atomizer of a kind of electronic cigarette |
Country Status (2)
| Country | Link |
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| CN (1) | CN107404940A (en) |
| WO (1) | WO2016168986A1 (en) |
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