WO2015035689A1 - Electronic cigarette and method for battery rod to identify atomizer - Google Patents

Abstract

An electronic cigarette and a method for a battery rod (20) to identify an atomizer (30). The electronic cigarette comprises the battery rod (20) and the atomizer (30). The atomizer (30) comprises a first wireless identification module (301). The battery rod (20) comprises a power-supplying battery (202), a microprocessor (200), and a second wireless identification module (201), where the second wireless identification module (201) is connected separately to the microprocessor (200) and to the power-supplying battery (202), and the microprocessor (200) is connected to the power-supplying battery (202). The first wireless identification module (301) is used for storing identification information and is used for transmitting the identification information to the second wireless identification module (201). The second wireless identification module (201) is used for receiving the identification information transmitted by the first wireless identification module (301) and for transmitting the received identification information to the microprocessor (200). The microprocessor (200) is used for determining, on the basis of the received identification information, whether or not the atomizer (30) and the battery rod (20) match with each other. The battery rod (20) is provided with a feature for identifying whether or not connected thereto is a matching atomizer (30), thus preventing the incompatible usage of the battery rod (20) of the electronic cigarette with an undesignated atomizer (30).

Description

 Method for identifying atomizer by electronic cigarette and battery rod Technical field

 The utility model relates to the field of electronic cigarettes, and more particularly to a method for recognizing an atomizer by an electronic cigarette and a battery rod capable of wireless recognition.

Background technique

 E-cigarette is a kind of substitute for heating cigarette liquid to produce a cigarette.

At present, most of the electronic cigarettes can be divided into two parts: a battery rod and an atomizer, wherein the atomizer part stores the smoke liquid, and the battery rod part includes the power supply battery to provide the heating power.

Generally, since the battery in the battery rod is rechargeable, the battery rod portion can be recharged. After the smoke liquid in the atomizer is used up, it is necessary to re-add the smoke liquid or directly replace the new atomizer. If a new nebulizer is replaced, the nebulizer will need to match the reusable battery rod.

Since the design of the atomizer and the battery rod are different for different electronic cigarettes (such as size, battery supply voltage, etc.), if the consumer uses an incompatible atomizer with the battery rod during use, This may cause problems such as malfunction or abnormal mouthfeel when using the e-cigarette.

 However, the battery rods and atomizers in the prior art cannot realize whether they are matched before a malfunction or an abnormality in the mouthfeel.

Summary of the invention

The technical problem to be solved by the utility model is that the battery rod in the above-mentioned electronic cigarette of the prior art cannot determine whether the atomizer connected to it is matched, and provides an electronic cigarette and a battery rod to identify the atomizer. method .

 The technical solution adopted by the utility model to solve the technical problems thereof is: An electronic cigarette comprising a battery rod and an atomizer, the atomizer comprising a first wireless identification module;

The battery rod includes a power supply battery, a microprocessor, and a second wireless identification module, wherein the second wireless identification module is respectively connected to the microprocessor and the power supply battery, and the microprocessor and the power supply Battery connection

 The power supply battery is configured to store electrical energy and provide a supply voltage;

 The first wireless identification module is configured to store identification information, and to send the identification information to the second wireless identification module;

The second wireless identification module is configured to receive the identification information sent by the first wireless identification module, and send the received identification information to the microprocessor;

 The microprocessor is configured to determine, according to the received identification information, whether the atomizer and the battery rod match.

 Preferred The battery rod further includes: a power supply circuit and a trigger circuit, wherein the power supply circuit is respectively connected to the power supply battery and the microprocessor, and the trigger circuit is respectively connected to the power supply battery and the microprocessor connection;

 The trigger circuit is configured to generate a trigger signal and transmit the signal to the microprocessor;

The microprocessor is further configured to control the power supply circuit to be turned on to enable the power supply battery to provide the atomizer through the power supply circuit when a result of the determining is a match and the trigger signal is received Supply voltage.

 Preferably, the power supply circuit comprises: a switch circuit and a state indicating circuit;

 The switch circuit is configured to control the power supply battery to turn on or off the power supply circuit of the atomizer according to a control signal of the microprocessor;

 The status indication circuit is configured to display prompt information when the determination result is that the battery rod and the atomizer do not match and/or match.

 Preferably, the switch circuit includes a MOS transistor; the state indicating circuit includes a light emitting diode; and the model of the microprocessor is SN8P2711; the trigger circuit comprises an air flow sensor or a trigger switch; the air flow sensor and the trigger switch respectively comprise an output end, a ground end and a power end;

 Wherein the second pin of the microprocessor is connected to the output end of the trigger circuit; the fourth pin of the microprocessor is connected to the gate of the MOS transistor; MOS The source of the tube is connected to the negative pole of the power supply battery; the power supply end of the trigger circuit is connected to the positive pole of the power supply battery, and the ground end is grounded; the fifth pin of the microprocessor is connected to the cathode of the light emitting diode; the anode connection of the light emitting diode The positive electrode of the power supply battery.

 Preferably, the atomizer further comprises an electric heating wire for generating heat to atomize the liquid smoke;

 Said The battery rod further includes a power supply interface for connecting the heating wire, wherein one end of the power supply interface is connected to a positive pole of the power supply battery, and the other end of the power supply interface is connected to the MOS a drain of the tube, and both ends of the power supply interface are also respectively connected to both ends of the heating wire.

 Preferably, the first wireless identification module includes a first antenna, a modulation circuit, and an encoder that are sequentially connected, and the first wireless identification module further includes a carrier oscillation circuit connected to the modulation circuit;

 The second wireless identification module includes a second antenna, a signal amplifying circuit, a demodulating circuit, and a decoder that are sequentially connected.

 Preferably, the second wireless identification module and the first wireless identification module utilize 315MHz, 433MHz or 900MHz The frequency of the transmission of the identification information.

 Preferably, the second wireless identification module comprises an RFID reader chip, and the first wireless identification module comprises an RFID Tag chip.

 Preferably, the second wireless identification module comprises an NFC reader chip, and the first wireless identification module comprises NFC Tag chip.

 Preferably, the second wireless identification module comprises a zigbee reader chip, and the first wireless identification module comprises zigbee Label chip.

 A method for identifying a nebulizer by a battery rod includes the following steps:

 The first wireless identification module stores the identification information in advance, and transmits the identification information to the second wireless identification module;

 After the second wireless identification module receives the identification information sent by the first wireless identification module, Sending the received identification information to the microprocessor;

 The microprocessor determines whether the atomizer and the battery rod match based on the received identification information.

 Preferably, the method further comprises: displaying the prompt information according to the judgment result of the microprocessor.

 Preferably, the method further includes: when the judgment result of the microprocessor is matched and the microprocessor receives the trigger circuit When the signal is triggered, the control power supply circuit is turned on to enable the power supply battery to supply the power supply voltage to the atomizer through the power supply circuit.

 The method for realizing the identification of the atomizer by the electronic cigarette and the battery rod of the present invention has the following beneficial effects: The battery rod has the function of identifying that the atomizer connected to it does not match. It can prevent the use of electronic cigarette battery rods and non-designated atomizers; avoid problems such as malfunctions and abnormal mouthfeel when consumers use unmatched battery rods and atomizers; make electronic cigarettes safer and more reliable; Various working states or abnormal states LED indication, drive output voltage can be customized and output short circuit protection and long suction protection.

DRAWINGS

 The present invention will be further described below in conjunction with the accompanying drawings and embodiments, in which:

 1 is a structural view of an electronic cigarette according to an embodiment of the present invention;

 2 is a structural diagram of a second wireless identification module and a first wireless identification module according to an embodiment of the present invention;

 3 is a circuit diagram of a signal amplifying circuit and a demodulating circuit of the second wireless identification module shown in FIG. 2;

 4 is a circuit diagram of an electronic cigarette battery rod according to an embodiment of the present invention;

 FIG. 5 is a flow chart of a method for identifying a nebulizer by a battery rod according to an embodiment of the present invention.

detailed description

For a better understanding of the technical features, objects and effects of the present invention, the specific embodiments of the present invention will be described in detail with reference to the accompanying drawings.

 1 is a structural view of an electronic cigarette according to an embodiment of the present invention. In an embodiment of the present invention, the electronic cigarette includes a battery rod 20 And an atomizer 30 detachably connected to the battery rod 20. The battery rod 20 has a second wireless identification module 201 built therein, and the atomizer 30 has a first wireless identification module 301 built therein. Nebulizer 30 Also included is a heating wire 302 for heating to atomize the liquid. The battery rod further includes: a trigger circuit 204, a power supply battery 202, a power supply circuit (not shown), and a microprocessor 200. . The second wireless identification module 201 is connected to the microprocessor 200 and the power supply battery 202, and the microprocessor 200 is connected to the power supply battery 202, and the power supply circuit and the power supply battery 202, respectively. Connected to the microprocessor 200. The trigger circuit 204 is connected to the power supply battery 202 and the microprocessor 200, respectively.

 The power supply battery 202 is configured to store electrical energy and provide a supply voltage; a trigger circuit 204 For generating a trigger signal and transmitting it to the microprocessor; the first wireless identification module 301 is configured to store the identification information, and is configured to send the identification information to the second wireless identification module 201; the second wireless identification module 301 And receiving the identification information sent by the first wireless identification module, and processing the received identification information, and sending the identification information to the microprocessor 200. The microprocessor 200 is configured to determine the atomizer and the 30 according to the received identification information. Whether the battery rod 20 matches, if the result of the determination is that the atomizer 30 and the battery rod 20 match and receives the trigger signal sent by the trigger circuit 204, the control power supply circuit is turned on to enable the power supply battery 202. The supply voltage is supplied to the atomizer 30 through the power supply circuit.

 Specifically, FIG. 2 is a structural diagram of a second wireless identification module and a first wireless identification module according to an embodiment of the present invention. First wireless identification module The 301 includes a first antenna 3011, a modulation circuit 3012, a carrier oscillation circuit 3014, and an encoder 3013. The second wireless identification module 201 includes a second antenna 2011 , Signal Amplifier Circuit 2012, Demodulation Circuit 2013 and Decoder 2014.

 In the embodiment of the present invention, the second wireless identification module 301 passes through the built-in first antenna 3011. Transmitting a certain frequency of the radio frequency signal, when the atomizer 30 enters the working area of the first antenna 3011, the second wireless 3012 receives the first antenna 3011 Transmitting the RF signal and generating an induced current; the first wireless identification module 301 obtains the signal that the energy is activated and the included identification information is encoded by the encoder 3013, and the modulation circuit 3012 The encoded signal is modulated onto a carrier generated by the carrier oscillation circuit 3014, and the modulated signal is transmitted through the first antenna 3011; the second antenna is received from the first wireless identification module 301. The transmitted electromagnetic signal (which contains the identification information) and the electromagnetic signal is converted into an electrical signal, followed by the signal amplifying circuit 2012, the demodulation circuit 2013 and the decoder 2014 The electrical signal is sequentially amplified, demodulated, and decoded, and the decoded signal is transmitted to the microprocessor 200; the microprocessor 200 determines the validity of the atomizer 30 based on the received signal (i.e., the atomizer 30) Whether it matches the battery rod 20), if legal (ie, matching), the microprocessor 200 turns on the power supply circuit to the heating wire 302 of the atomizer 30; if it is not legal (ie, does not match), the microprocessor 200 does not conduct the power supply circuit.

 Referring to FIG. 3, a circuit diagram of a signal amplifying circuit and a demodulating circuit of the present invention. Wherein, the signal amplifying circuit 2012 includes a capacitor C1 , capacitor C2 , capacitor C3 , resistor R1 , resistor R2 , transistor PQ1 and inductor L1 ; demodulation circuit 2013 includes resistor R3 , variable resistor R6 , comparator PU1, resistor R4 and resistor R5.

 Specifically, the anode of the capacitor C1 is connected to one end of the second antenna 2011, and the other end of the second antenna 2011 is grounded; the capacitor C1 The negative electrode is connected to one end of the resistor R1 and the negative terminal of the capacitor C2; the anode of the capacitor C2 is connected to the second antenna 2011, the anode of the negative connection capacitor C3, and the base of the transistor PQ1; the transistor The emitter of PQ1 is grounded, the collector is connected to one end of inductor L1 and one end of resistor R3; the other end of inductor L1 is connected to one end of resistor R2; the other end of resistor R2 is connected to resistor R1 And the positive terminal of the power supply battery 202; the other end of the resistor R3 is connected to the non-inverting input terminal of the comparator PU1; the inverting input terminal of the comparator PU1 is connected to one end of the variable resistor R6 (adjustable end) The other ends of the variable resistor R6 are respectively connected to the positive pole and the ground of the power supply battery 202; the positive power terminal of the comparator PU1 is connected to the positive pole of the power supply battery 202, the negative power supply terminal is connected to the ground, and the output terminal (Vout) Connect the decoder 2014; one end of the resistor R4 is connected to the positive pole of the power supply battery 202, and the other end is connected to the output end of the comparator PU1; one end of the resistor R5 is connected to the comparator PU1 The output is grounded at the other end.

 Thereby, the identification information received by the second antenna 2011 is amplified, demodulated, and transmitted to the decoder. . In an embodiment of the present invention, the decoder 2014 may employ a decoding chip (such as a decoding chip of the type pt2272) to implement decoding.

 The battery rod 20 of the electronic cigarette of the embodiment of the present invention has an identification function for the atomizer 30 connected thereto, and can be used for the first wireless identification module. The identification information contained in 301 is encrypted to prevent data duplication, so as to prevent the mismatched nebulizer 30 and the battery rod 20 from being misidentified as being matched due to the identification information being changed.

 In an embodiment of the present invention, the identification information may be ID information, that is, the ID information of different atomizers is different. Microprocessor 200 Determine whether the atomizer is legal, that is, judge according to the ID information. Specifically, the microprocessor 200 may pre-store the ID information of the legal atomizer, and receive the ID included after decoding by the decoder 2014. When the data of the information is compared, the ID information to be received is compared with the pre-stored ID information. If the received ID information is a pre-stored ID One of the information can be judged to be legal. In addition, the identification information may also be other identification information, such as a serial number, etc., the microprocessor 200 It is only necessary to pre-store the legal identification information corresponding to the identification information to accurately determine whether the atomizer is legal.

 Preferably, the second wireless identification module 201 of the embodiment of the present invention includes an RFID reader chip, and the model number thereof is RF69. RF68, U2270B, etc.; the first wireless identification module 301 includes an RFID tag chip, and its model number can be Monza 4, FM11RF32SH, and the like.

 In addition, the first wireless identification module 301 and the second wireless identification module 201 of the embodiment of the present invention may further include NFC respectively. Tag chips and NFC reader chips, or zigbee tag chips and zigbee reader chips, respectively. And the first wireless identification module 301 and the second wireless identification module The 201 can also transmit information using 315MHz, 433MHz or 900MHz.

 Referring to FIG. 1, the power supply circuit of the embodiment of the present invention includes: a switch circuit 203, a state indicating circuit 207, and a short circuit detecting circuit. 205 and voltage detection circuit 206.

 The switch circuit 203 is used to turn on or off according to the control of the microprocessor 200, so that the power supply battery 202 is connected to the heating wire 302. The power supply circuit is turned on or off.

 Status indicating circuit 207 It is used to display the working state of the electronic cigarette, including the status display of the power supply to the atomizer, the display of the abnormality of the power supply (such as short circuit, low voltage, etc.), and the judgment result of the microprocessor is the battery rod and the atomizer. Mismatch and / Or display a prompt message when matching to prompt the consumer.

 The short circuit detecting circuit 205 is configured to detect whether a short circuit occurs in the power supply circuit, and if a short circuit is detected, the microprocessor 200 controls the switching circuit 203 deadline.

 The voltage detecting circuit 206 is for detecting an output voltage. In an embodiment of the present invention, since the output voltage is supplied by the battery 202 Provided, therefore, when the output voltage is detected to be low, indicating that the voltage of the power supply battery 202 is low. Thus, the microprocessor 200 It is determined whether the detected voltage is lower than a set value according to the detected output voltage, and if it is lower, a reset operation is performed. The reset operation can avoid the power supply battery when the external power supply voltage is lower than a certain value. When charging is performed, there is a problem that charging cannot be performed normally.

 4 is a circuit diagram of an electronic cigarette battery rod according to an embodiment of the present invention. In an embodiment of the present invention, the switch circuit 203 And the short circuit detecting circuit 205 is realized by the MOS transistor Q1; the state indicating circuit 207 includes the resistor R7 and the light emitting diode D1; and the voltage detecting circuit 206 includes the resistor R8. The model of the microprocessor 200 of the embodiment of the present invention is SN8P2711. Trigger circuit 204 includes An air flow sensor or a trigger switch, which includes an output terminal, a ground terminal, and a power supply terminal. In an embodiment of the present invention, the trigger circuit 204 is comprised of an air flow sensor or a push button switch, and thus, the trigger circuit 204 The generated trigger signal includes an air flow trigger signal or a key trigger signal. When these two kinds of trigger signals are generated, it indicates that the smoking action of the consumer starts, and at this time, the microprocessor 200 It is necessary to control the power supply circuit to conduct to supply power to the atomizer to atomize the smoke liquid to produce a smoking effect.

 Specifically, the first pin (VDD pin) of the microprocessor 200 is grounded through the filter capacitor C4, and the microprocessor 200 The first pin is also connected to the cathode of the Zener diode D2; the anode of the Zener diode D2 is connected to the anode of the power supply battery 202; the second pin of the microprocessor 200 (P0.2/Xout) Pin) is connected to the output of the trigger circuit 204; the third pin of the microprocessor 200 (P0.4/RST/Vpp pin) is connected to one end of the resistor R8 and the MOS transistor Q1 The other end of the resistor R8 is connected to the positive terminal of the power supply battery 202; the fourth pin of the microprocessor 200 (P5.3/BZ1/PWM1 pin) is connected to the MOS transistor Q1 The fifth pin of the microprocessor 200 (P5.4/BZ0/PWM0 pin) is connected to the cathode of the light-emitting diode D1; the anode of the light-emitting diode D1 is connected to the end of the resistor R7, the resistor The other end of R7 is connected to the positive terminal of the power supply battery 202; the ninth pin of the microprocessor 200 (P4.4/AIN4 pin) is connected to the drain of the MOS transistor Q1; the microprocessor 200 The tenth pin (VSS pin) is grounded; the source of the MOS transistor Q1 is connected to the negative terminal of the power supply battery 202; the power supply terminal of the trigger circuit 204 is connected to the power supply battery 202 The positive pole and ground terminal are grounded.

 In the embodiment of the present invention, the second wireless identification module 201 is connected to the microprocessor 200, and the specific second wireless identification module 201 The data output (i.e., the output of decoder 2014) is coupled to an input (e.g., the sixth pin) of microprocessor 200 to transfer data to microprocessor 200.

 In addition, the electronic cigarette battery rod of the embodiment of the present invention further includes a power supply interface 101 and one end of the power supply interface 101 (J1). Connect the positive terminal of the power supply battery 202 and the other end (J2 terminal) to the drain of the MOS transistor Q1. When the atomizer is connected to the battery rod, the J1 end of the power supply interface 101 and J2 The ends are also respectively connected to the two ends of the heating wire 302 in the atomizer 30 to supply power to the heating wire 302 of the atomizer 30 to cause it to generate heat and atomize the liquid.

 The MOS transistor in the embodiment of the present invention can also be replaced with a triode, a transistor, a thyristor or the like to achieve the same function.

 The working principle of the electronic cigarette of the embodiment of the present invention is:

 When the atomizer 30 enters the second antenna of the second wireless identification module 201 of the battery rod 20, 2011 The working area (ie, when the atomizer 30 is connected to the battery rod), the first antenna 3011 in the first wireless identification module 301 built in the atomizer 30 receives the second wireless identification module 201 The built-in second antenna transmits electromagnetic waves and converts the electromagnetic waves into electric energy to drive the first wireless identification module 301 to encode and modulate the stored identification information through the first antenna 3011. Transmitting; the second antenna 2011 of the second wireless identification module 201 receives the signal containing the identification information, and performs amplification, demodulation, decoding, etc. on the signal, and then transmits the signal to the microprocessor 200; 200 judges whether the atomizer 30 is matched based on the received information. When the microprocessor 200 derives a judgment result (including a match or a mismatch), the microprocessor 200 The illumination of the light-emitting diode D1 can be made to indicate by controlling the voltage of the fifth pin. Specifically, by controlling the light emitting diode D1 The intensity of the illumination or the state of illumination (eg, blinking, staying steady) to prompt for matching and mismatch, respectively. In addition, it is also possible to control the light-emitting diode D1 to emit light only when matching, or to control the light-emitting diode D1 only when there is no match. Glowing.

 If the result of the determination by the microprocessor 200 is that the atomizer 30 and the battery rod 20 match, when the microprocessor 200 receives the trigger circuit After the trigger signal of 204, the control MOS transistor Q1 is turned on to turn on the power supply circuit of the atomizer 30, and the power supply battery 202 is supplied to the heating wire 302 of the atomizer 30. powered by. During the power supply process, the microprocessor 200 controls the on/off of the MOS transistor Q1 by controlling the fourth pin to output a stable duty cycle PWM pulse, thereby adjusting the output voltage to the atomizer 30. The driving method is adjusted. And during the power supply process, the microprocessor 200 Short-circuit protection can be achieved by detecting the voltage change at the ninth pin. The specific implementation process is as follows: if a short circuit occurs, the voltage detected by the ninth leg will be abrupt (voltage rise), and the microprocessor 200 Setting the fourth pin low causes the MOS transistor Q1 to turn off, thereby stopping the power supply and achieving short-circuit protection. LED D1 during power supply It can indicate the working status, as well as the fade display of smoking and stoppage. The specific implementation is that the microprocessor 200 By controlling the voltage of the fifth leg, the luminous intensity of the light emitting diode is different, thereby indicating that the electronic cigarette is in a normal working state or in an abnormal working state, and the abnormal working state includes: short circuit, battery low voltage, etc.; or, by controlling the fifth The output voltage of the foot is continuously increased or decreased to realize the light emitting diode The continuous change in the brightness of D1 allows for fade-in and fade-out effects when smoking or stopping.

 In addition, during the power supply process, if the microprocessor 200 When the level of the second pin is at a high level (or low voltage) for a certain period of time, it indicates that there is always a trigger signal during this period, that is, the period of time has been in a smoking state. At this time, the microprocessor 200 Controllable MOS tube Q1 The deadline is to avoid accidents such as sending a hot mouth for a long time in a smoking state to achieve long-suck protection. In an embodiment of the invention, this period of time can be set to control the length of time allowed for a single smoking.

 If the result of the determination by the microprocessor 200 is that the atomizer 30 and the battery rod 20 do not match, regardless of the microprocessor 200 Whether or not the trigger signal of the trigger circuit 204 is received controls the MOS transistor Q1 to be turned off, thereby turning off the power supply circuit. To avoid giving a mismatched atomizer 30 Problems such as power failure or changes in taste.

 In an embodiment of the present invention, when the second antenna 2011 receives the identification information (or the microprocessor 200) After the judgment result is obtained, the microprocessor 200 can control the second wireless identification module 201 to terminate transmitting the electromagnetic wave to terminate the first wireless identification module 301 and the second wireless identification module 201. The communication connection is made until the (same or another) atomizer 30 is detected to be reconnected to the battery rod 20. About the detection of the atomizer 30 can be inserted and removed by the shrapnel trigger, mechanical switch trigger Alternatively, a Hall element can be used for inductive sensing to determine if the other or the same atomizer 30 is reconnected to the battery rod 20.

 Specifically, for example, if the shrapnel is used to detect whether the atomizer 30 is connected to the battery rod, the shrapnel trigger circuit and the power supply interface can be connected. Connected to the microcontroller 200. When a nebulizer is connected to the power supply interface, the shrapnel trigger circuit sends a trigger signal to the microcontroller 200. The microcontroller 200 controls the second wireless identification module 201 Send electromagnetic waves. If the second wireless identification module 301 is an RFID reader chip of the type U2270B, the microprocessor 200 can control its carrier frequency enable pin (CFE). Pin) to terminate the second wireless identification module 201 to transmit electromagnetic waves.

 In an embodiment of the present invention, the Zener diode D2 The role is to prevent ripple, because when the battery is exhausted, the voltage of the battery will change drastically, and the diode D2 can prevent the ripple generated by the sharp change of the voltage at this time.

 It should be understood that the microprocessor 200 in the embodiment of the present invention adopts the model number of Sn8P2711B. Single-chip microcomputer, but the person skilled in the art, under the enlightenment of the utility model, adopts other single-chip microcomputer or MCU with the same function It is also within the scope of the present invention to achieve the functions of the present invention. And any electronic cigarette including the control circuit of the present invention is also within the protection scope of the present invention.

 5 is a flow chart of a method for identifying a nebulizer by a battery rod according to an embodiment of the present invention. The method includes the following steps:

 Step S101: The first wireless identification module 301 stores identification information in advance, and The identification information is sent to the second wireless identification module 201.

 Specifically, when the atomizer 30 enters the second antenna of the second wireless identification module 201 of the battery rod 20, 2011 The working area (ie, when the atomizer 30 is connected to the battery rod), the first antenna 3011 in the first wireless identification module 301 built in the atomizer 30 receives the second wireless identification module 201 The built-in electromagnetic wave transmitted by the second antenna 2011 converts the electromagnetic wave into electric energy to drive the first wireless identification module 301 to encode and modulate the stored identification information, and then transmit it through the first antenna 3011. .

 It should be understood that if the first wireless identification 201 is an active module, there is no need to receive the second identification module 201. The electromagnetic wave can be automatically driven by its internal power module. The first wireless identification module 301 encodes and modulates the stored identification information and transmits it through the first antenna 3011.

 Step S102: The second wireless identification module 201 receives the identification information sent by the first wireless identification module 301. And transmitting the received identification information to the microprocessor 200.

 Specifically, the second antenna of the second wireless identification module 201 2011 A signal containing the identification information is received, and the signal is amplified, demodulated, decoded, etc., and then transmitted to the microprocessor 200.

 After the second antenna 2011 receives the identification information, the microprocessor 200 can control the second wireless identification module 201. The transmission of the electromagnetic wave is terminated to terminate the communication connection between the first wireless identification module 301 and the second wireless identification module 201.

 Step S103: The microprocessor 200 determines, according to the received identification information, whether the atomizer 30 and the battery rod 20 match. .

 Specifically, the microprocessor 200 The received identification information is compared with the pre-stored information to determine whether the received identification information is a match in the pre-stored information. If it matches, it is determined that the atomizer and the battery rod match, otherwise it is determined to be a mismatch.

 The method of the embodiment of the present invention further includes: displaying the prompt information according to the judgment result of the microprocessor.

 Specifically, the microprocessor 200 can control the LED D1 by controlling the voltage of the fifth pin. Illuminate for the prompt. Specifically, by controlling the light emitting diode D1 The intensity of the illumination or the state of illumination (eg, blinking, staying steady) to prompt for matching and mismatch, respectively. In addition, it is also possible to control the light-emitting diode D1 to emit light only when matching, or to control the light-emitting diode D1 only when there is no match. Illuminate

 The method of the embodiment of the present invention further includes: when the judgment result of the microprocessor is matched and the microprocessor receives the trigger circuit When the signal is triggered, the control power supply circuit is turned on to enable the power supply battery to supply the power supply voltage to the atomizer through the power supply circuit.

 The electronic cigarette of the embodiment of the invention has the following advantages: The battery rod can match and identify the atomizer connected thereto, The utility model can prevent the electronic cigarette battery rod and the non-designated atomizer from being mixed and used, so as to avoid problems such as malfunction and abnormal mouth feeling when the consumer uses the mismatched electronic cigarette, and the electronic cigarette quality is safer and more reliable; and the electronic of the utility model Smoke also has various working conditions or abnormal conditions LED indication, display mode can be customized, output short circuit protection and long suction protection, drive output voltage can be customized.

The embodiments of the present invention have been described above with reference to the drawings, but the present invention is not limited to the specific embodiments described above, and the specific embodiments described above are merely illustrative and not restrictive. In the light of the scope of the present invention, many forms may be made without departing from the scope of the present invention, and these are all within the protection of the present invention.

Claims (13)

An electronic cigarette comprising a battery rod and an atomizer, wherein the atomizer comprises a first wireless identification module; The battery rod includes a power supply battery, a microprocessor, and a second wireless identification module, wherein the second wireless identification module is respectively connected to the microprocessor and the power supply battery, and the microprocessor and the power supply Battery connection The power supply battery is configured to store electrical energy and provide a supply voltage; The first wireless identification module is configured to store identification information, and to send the identification information to the second wireless identification module; The second wireless identification module is configured to receive the identification information sent by the first wireless identification module, and send the received identification information to the microprocessor; The microprocessor is configured to determine, according to the received identification information, whether the atomizer and the battery rod match. Electronic cigarette according to claim 1 The battery rod further includes: a power supply circuit and a trigger circuit, wherein the power supply circuit is respectively connected to the power supply battery and the microprocessor, and the trigger circuit is respectively connected to the power supply battery and the Microprocessor connection; The trigger circuit is configured to generate a trigger signal and transmit the signal to the microprocessor; The microprocessor is further configured to control the power supply circuit to be turned on to enable the power supply battery to provide the atomizer through the power supply circuit when a result of the determining is a match and the trigger signal is received Supply voltage. The electronic cigarette according to claim 2, wherein the power supply circuit comprises: a switch circuit and a state indicating circuit; The switch circuit is configured to control the power supply battery to turn on or off the power supply circuit of the atomizer according to a control signal of the microprocessor; The status indication circuit is configured to display prompt information when the determination result is that the battery rod and the atomizer do not match and/or match. The electronic cigarette according to claim 3, wherein said switching circuit comprises a MOS transistor (Q1); said state indicating circuit comprises Light-emitting diode; the model of the microprocessor is SN8P2711; the trigger circuit includes an air flow sensor or a trigger switch; the air flow sensor and the trigger switch respectively include an output end, a ground end, and a power end ; Wherein the second pin of the microprocessor is connected to the output end of the trigger circuit; the fourth pin of the microprocessor is connected to the gate of the MOS transistor (Q1); MOS Tube (Q1 The source is connected to the negative pole of the power supply battery; the power supply end of the trigger circuit is connected to the positive pole of the power supply battery, and the ground end is grounded; the fifth pin of the microprocessor is connected to the cathode of the light emitting diode; the anode connection of the light emitting diode The positive electrode of the power supply battery. The electronic cigarette according to claim 4, wherein the atomizer further comprises an electric heating wire for generating heat to atomize the liquid smoke; The battery rod further includes a power supply interface for connecting the heating wire, wherein one end of the power supply interface is connected to a positive pole of the power supply battery, and the other end of the power supply interface is connected to the MOS tube (Q1) And a drain of the power supply interface is further connected to both ends of the heating wire. The electronic cigarette according to claim 1, wherein the first wireless identification module comprises a first antenna, a modulation circuit and an encoder connected in sequence, The first wireless identification module further includes a carrier oscillation circuit connected to the modulation circuit; The second wireless identification module includes a second antenna, a signal amplifying circuit, a demodulating circuit, and a decoder that are sequentially connected.  The electronic cigarette according to claim 6, wherein the second wireless identification module and the first wireless identification module utilize 315 MHz, The transmission of the identification information is performed at a frequency of 433 MHz or 900 MHz. The electronic cigarette according to claim 1, wherein the second wireless identification module comprises an RFID reader chip, and the first wireless identification module comprises RFID tag chip.  The electronic cigarette according to claim 1, wherein the second wireless identification module comprises an NFC reader chip, and the first wireless identification module comprises NFC tag chip.  The electronic cigarette according to claim 1, wherein said second wireless identification module comprises a zigbee reader chip The first wireless identification module includes a zigbee tag chip. A method for identifying a nebulizer by a battery rod, comprising the steps of: The first wireless identification module stores the identification information in advance, and transmits the identification information to the second wireless identification module; After receiving the identification information sent by the first wireless identification module, the second wireless identification module sends the received identification information to the microprocessor. ; The microprocessor determines whether the atomizer and the battery rod match based on the received identification information.  The method of claim 4, wherein the method further comprises: The prompt information is displayed according to the judgment result of the microprocessor.  A method of identifying an atomizer by a battery rod according to claim 11, wherein The method further includes: when the judgment result of the microprocessor is a match and the microprocessor receives a trigger signal of the trigger circuit, controlling the power supply circuit to be turned on to enable the power supply battery to pass the power supply circuit as the fog The regulator supplies the supply voltage.

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