An encryption circuit for e-cigarette cartridges and devices
By introducing an encryption circuit for the e-cigarette cartridge and device into the e-cigarette, and using an NFC anti-counterfeiting identification circuit to identify the matching cartridge tag card, the problem of incompatibility between third-party cartridges and devices is solved, improving the safety and lifespan of the e-cigarette.
Patent Information
- Application Number
- CN202522602412.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-08
- Publication Date
- 2026-11-06
- Estimated Expiration
- 2035-12-08
AI Technical Summary
In existing e-cigarettes, the incompatibility between third-party cartridges and the device leads to reduced lifespan and safety issues, and there is a lack of anti-counterfeiting features.
The device employs an encrypted circuit for both the e-cigarette cartridge and the e-cigarette device, including a power supply battery, a data control circuit, an NFC anti-counterfeiting identification circuit, a charging circuit, and a display circuit. The NFC anti-counterfeiting identification circuit identifies the matching e-cigarette cartridge tag card, ensuring that the e-cigarette device and the e-cigarette cartridge are compatible for use.
This improves the safety of e-cigarette use and extends the lifespan of the device. Anti-counterfeiting features ensure compatibility between the cartridges and the device, preventing the use of incompatible cartridges and enhancing product safety and competitiveness.
Smart Images
Figure CN224936605U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electronic cigarette technology, specifically to an encryption circuit for electronic cigarette cartridges and devices. Background Technology
[0002] An electronic cigarette is an electronic product that mimics the properties of a traditional cigarette. It uses an atomizing component to vaporize a liquid containing nicotine for the user to inhale. Electronic cigarettes typically consist of a cartridge and a device. The cartridge contains a reservoir to store the e-liquid, and the atomizing component, powered by a battery within the device, converts the liquid nicotine in the cartridge into vapor.
[0003] With the development of e-cigarettes, users have begun to pursue different flavors, resulting in a large number of e-cigarette cartridges of varying quality appearing on the market. Some users install third-party e-cigarette cartridges into their devices. Since these third-party cartridges have not undergone official quality verification, incompatibility between the circuit parameters in the cartridge and the device can easily occur during installation and use, leading to a reduced lifespan of the device and even safety issues. Existing e-cigarette cartridges lack anti-counterfeiting features, resulting in lower product safety and hindering product competitiveness. Utility Model Content
[0004] To address the problems in the prior art, this utility model provides an encryption circuit for e-cigarette cartridges and e-cigarette rods.
[0005] This utility model discloses an encryption circuit for an electronic cigarette cartridge and device, comprising a power supply battery, a data control circuit, an NFC anti-counterfeiting identification circuit, a charging circuit, and a display circuit. The power supply battery is connected to the input terminal of the data control circuit, the input terminal of the data control circuit is connected to the input terminal of the display circuit, the output terminal of the display circuit is connected to the display screen, the power supply battery is connected to the charging circuit, and the output terminal of the NFC anti-counterfeiting identification circuit is connected to the input terminal of the data control circuit. The NFC anti-counterfeiting identification circuit includes an NFC main control circuit and a radio frequency circuit. The NFC main control circuit is equipped with a data output pin and a data receiving pin, which are respectively connected to the input terminal and the output terminal of the radio frequency circuit. The NFC main control circuit can cooperate with the radio frequency circuit to check whether there is a matching tag card on the cartridge, and the data control circuit can cooperate with the NFC anti-counterfeiting identification circuit to transmit the identified information to the display circuit.
[0006] This utility model is further improved. The data control circuit includes a data control chip U6. The data control chip U6 is provided with a power input pin, a display output pin, and an anti-counterfeiting identification pin. The display output pin is connected to the input terminal of the display circuit, the anti-counterfeiting identification pin is connected to the output terminal of the NFC anti-counterfeiting identification circuit, and the power supply battery is connected to the power input pin.
[0007] This utility model is further improved by providing a 33-pin configuration on the data control chip U6. The power input pin is pin 5 of the data control chip U6, the display output pins are pins 7, 8, 20, 25, 26, 27, 28 and 29 of the data control chip U6, and the anti-counterfeiting identification pins are pins 10, 11, 12 and 13 of the data control chip U6.
[0008] This utility model is further improved. The NFC master control circuit includes an NFC master control chip U7, capacitor C19, resistor R9, capacitor C27, capacitor C31, capacitor C15, capacitor C16, and an active crystal oscillator Y1. The NFC master control chip U7 has 21 pins. Pins 16, 17, 18, 19, and 20 of the NFC master control chip U7 are connected to the input terminal of the data control circuit. Pins 7 and 9 of the NFC master control chip U7 are connected to the input terminal of the radio frequency circuit. Pin 13 of the NFC master control chip U7 is connected to the output terminal of the radio frequency circuit. Pin 1 of the NFC master control chip U7 is connected to one end of resistor R9, one end of capacitor C19, and one end of capacitor C27. The other end of resistor R9 is connected to the power supply. The circuit is connected as follows: the other end of capacitor C19 is grounded, the other end of capacitor C27 is grounded, pin 21 of NFC master control chip U7 is grounded, pin 11 of NFC master control chip U7 is connected to one end of capacitor C31, the other end of capacitor C31 is grounded, active crystal oscillator Y1 has 4 pins, pin 15 of NFC master control chip U7 and pin 1 of active crystal oscillator Y1 are both connected to one end of capacitor 15, the other end of capacitor 15 is grounded, pin 2 of active crystal oscillator Y1 is grounded, pin 14 of NFC master control chip U7 and pin 3 of active crystal oscillator Y1 are both connected to one end of capacitor C16, the other end of capacitor C16 is grounded, pin 4 of active crystal oscillator Y1 is grounded, and pin 8 of NFC master control chip U7 is connected to one end of capacitor C27.
[0009] This utility model is further improved, and the radio frequency circuit includes a first antenna, a second antenna, a third antenna, a fourth antenna, an inductor L1, capacitors C20, C22, C23, C32, C33, C24, C25, an inductor L2, a capacitor C21, a resistor R26, a capacitor C26, and a resistor R26. One end of inductor L1 is connected to pin 7 of the NFC main control chip U7, one end of inductor L2 is connected to pin 9 of the NFC main control chip U7, and the other end of inductor L1 is connected to one end of capacitor C32 and one end of capacitor C20, respectively. The other end of capacitor C20 and capacitor C25 are connected to the NFC main control chip U7. One end of capacitor C22 and one end of capacitor C23 are connected to the first antenna and the third antenna, respectively. The other ends of capacitors C32, C22, C23, C33, C24, and C25 are all grounded. The other ends of inductor L2 and capacitor C33 are connected to one end of capacitor C21. One end of resistor R26 is connected to pin 13 of NFC main control chip U7. The other end of resistor R26 is connected to one end of capacitor C26. The other ends of capacitors C21, C24, C25, and C26 are all connected to the second antenna and the fourth antenna, respectively.
[0010] This utility model is further improved, the charging circuit includes a charging IC circuit and a battery protection circuit, and the output terminal of the charging IC circuit is connected to the input terminal of the battery protection circuit.
[0011] This utility model is further improved. The IC circuit includes a charging interface, resistors R4, R3, R5, R6, and R8, capacitor C1, resistor R25, IC chip U3, resistor R27, and capacitor C2. The charging interface has 10 contacts, and the IC chip U3 has 8 pins. Contacts 1, 2, 3, 4, 5, and 10 of the charging interface are grounded. Contacts 6 and 9 of the charging interface are connected to one end of resistor R5, one end of resistor R8, and pin 8 of IC chip U3, respectively. The other end of resistor R5 is connected to one end of resistor R6, and the other end of resistor R6 is grounded. The other end of resistor R8 is connected to one end of capacitor C1, and the other end of capacitor C1 is grounded. The data control chip U6 also includes a charging data receiver. The charging interface has four pins: a charging data transmission pin, a charging data control pin, and a charging status pin. The 7th contact of the charging interface is connected to one end of resistor R3 and the charging data receiving pin, with the other end of resistor R3 grounded. The 7th contact of the charging interface is connected to one end of resistor R4 and the charging data transmission pin, with the other end of resistor R4 grounded. The 6th pin of IC chip U3 is connected to resistor R25, with the other end of resistor R25 grounded. The 5th pin of IC chip U3 is grounded. The 1st pin of IC chip U3 is connected to one end of capacitor C2, with the other end of capacitor C2 grounded. The 3rd pin of IC chip U3 is connected to the charging status pin. The 4th pin of IC chip U3 is connected to one end of resistor R27 and the charging data control pin, with the other end of resistor R27 grounded.
[0012] This utility model is further improved. The battery protection circuit includes a battery protection chip U4, a capacitor C8, and a resistor R1. The battery protection chip U4 has 5 pins. The 4th and 5th pins of the battery protection chip U4 are grounded. The 1st and 2nd pins of the battery protection chip U4 are connected to one end of the capacitor C8 and the negative terminal of the power supply battery, respectively. One end of the capacitor C8 is also connected to the negative terminal of the power supply battery. One end of the resistor R1 is connected to the positive terminal of the power supply battery. The other end of the resistor R1 and the other end of the capacitor C8 are both connected to the 3rd pin of the battery protection chip U4.
[0013] This utility model is further improved by providing a display screen interface on the display circuit. The display screen interface has 24 contacts. The 11th, 12th, 13th, 14th, 15th, 16th, 17th, 18th, 19th, 20th, 22nd, 23rd and 24th contacts of the display screen interface are grounded, and the 1st, 2nd, 3rd, 4th, 5th, 6th, 7th and 8th contacts of the display screen interface are all connected to the display output pins.
[0014] This utility model is further improved by including a microphone circuit, which includes a microphone sensor M1, a resistor R2 and a capacitor C7. The data control chip U6 is also provided with a microphone control pin. The microphone sensor M1 is provided with three contacts. The third pin of the microphone sensor M1 is connected to the microphone control pin. The second pin of the microphone sensor M1 is grounded. The first pin of the microphone sensor M1 is connected to one end of the resistor R2 and one end of the capacitor C7. The other end of the capacitor C7 is grounded. The other end of the resistor R2 is connected to the power supply battery.
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: By adopting this solution, the problems of unsafe use and reduced lifespan of the e-cigarette device when users use third-party e-cigarette cartridges can be effectively solved. Through the setting of NFC anti-counterfeiting identification circuit, the e-cigarette device can identify the e-cigarette cartridge. When the e-cigarette device detects the matching e-cigarette cartridge tag card, it means that the authentication is successful and the e-cigarette cartridge can be powered on for use. Otherwise, the e-cigarette cartridge cannot be used, which achieves the anti-counterfeiting effect of the e-cigarette cartridge and improves the safety of product use. Attached Figure Description
[0016] To more clearly illustrate the solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the encryption circuit for the cartridge and device of an electronic cigarette according to this utility model. Figure 2This is a circuit diagram of the data control circuit. Figure 3 This is a circuit diagram of the NFC main control circuit. Figure 4 This is a circuit diagram of a radio frequency (RF) circuit. Figure 5 Circuit diagram for the charging IC circuit; Figure 6 This is a circuit diagram for a battery protection circuit. Figure 7 The circuit diagram for the display circuit; Figure 8 This is the circuit diagram for the microphone circuit. Detailed Implementation
[0018] Unless otherwise defined, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used in the specification of this invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The terms "comprising" and "having," and any variations thereof, in the specification, claims, and accompanying drawings of this invention are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or accompanying drawings of this invention are used to distinguish different objects, not to describe a particular order.
[0019] In this invention, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this invention. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this invention can be combined with other embodiments.
[0020] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.
[0021] like Figures 1-8As shown, this utility model discloses an encryption circuit for an electronic cigarette cartridge / pen, comprising a power supply battery, a data control circuit, an NFC anti-counterfeiting identification circuit, a charging circuit, and a display circuit. The power supply battery is connected to the input terminal of the data control circuit, which is also connected to the input terminal of the display circuit. The output terminal of the display circuit is connected to the display screen. The power supply battery is connected to the charging circuit. The output terminal of the NFC anti-counterfeiting identification circuit is connected to the input terminal of the data control circuit. The NFC anti-counterfeiting identification circuit includes an NFC main control circuit and a radio frequency circuit. The NFC main control circuit has data output pins and data receiving pins, which are respectively connected to the input and output terminals of the radio frequency circuit. The NFC main control circuit can cooperate with the radio frequency circuit to check whether a matching tag card exists on the cartridge. The data control circuit can cooperate with the NFC anti-counterfeiting identification circuit to transmit the identified information to the display circuit.
[0022] By setting up an NFC anti-counterfeiting identification circuit, the e-cigarette device can identify the e-liquid cartridge. When the device detects a matching e-liquid cartridge tag, it means that the authentication is successful and the e-liquid cartridge can be powered on for use. Otherwise, the e-liquid cartridge cannot be used, thus achieving the anti-counterfeiting effect of the e-liquid cartridge and improving the safety of product use.
[0023] The data control circuit includes a data control chip U6, which has a power input pin, a display output pin, and an anti-counterfeiting identification pin. The display output pin is connected to the input terminal of the display circuit, the anti-counterfeiting identification pin is connected to the output terminal of the NFC anti-counterfeiting identification circuit, and the power supply battery is connected to the power input pin.
[0024] The data control chip U6 has 33 pins. The power input pin is pin 5 of the data control chip U6. The display output pins are pins 7, 8, 20, 25, 26, 27, 28 and 29 of the data control chip U6. The anti-counterfeiting identification pins are pins 10, 11, 12 and 13 of the data control chip U6.
[0025] The data control chip U6 has the model number CS32F031K8V6.
[0026] The NFC master control circuit includes an NFC master control chip U7, capacitor C19, resistor R9, capacitors C27, C31, C15, C16, and an active crystal oscillator Y1. The NFC master control chip U7 has 21 pins. Pins 16, 17, 18, 19, and 20 of the NFC master control chip U7 are connected to the input terminals of the data control circuit. Pins 7 and 9 of the NFC master control chip U7 are connected to the input terminals of the radio frequency circuit. Pin 13 of the NFC master control chip U7 is connected to the output terminal of the radio frequency circuit. Pin 1 of the NFC master control chip U7 is connected to one end of resistor R9, one end of capacitor C19, and one end of capacitor C27. The other end of resistor R9 is connected to the power supply battery. The other end of C19 is grounded, the other end of capacitor C27 is grounded, pin 21 of NFC master control chip U7 is grounded, pin 11 of NFC master control chip U7 is connected to one end of capacitor C31, the other end of capacitor C31 is grounded, active crystal oscillator Y1 has 4 pins, pin 15 of NFC master control chip U7 and pin 1 of active crystal oscillator Y1 are both connected to one end of capacitor 15, the other end of capacitor 15 is grounded, pin 2 of active crystal oscillator Y1 is grounded, pin 14 of NFC master control chip U7 and pin 3 of active crystal oscillator Y1 are both connected to one end of capacitor C16, the other end of capacitor C16 is grounded, pin 4 of active crystal oscillator Y1 is grounded, and pin 8 of NFC master control chip U7 is connected to one end of capacitor C27.
[0027] The NFC main control chip U7 sends data to the radio frequency circuit through pins 7 and 9. After the radio frequency circuit senses the signal, it sends the signal to the NFC main control chip U7 through the output terminal of the radio frequency circuit for anti-counterfeiting identification. When the match is successful, the data control chip U6 powers on the e-cigarette cartridge.
[0028] The radio frequency circuit includes a first antenna, a second antenna, a third antenna, a fourth antenna, an inductor L1, capacitors C20, C22, C23, C32, C33, C24, C25, an inductor L2, a capacitor C21, a resistor R26, a capacitor C26, and a resistor R25. One end of inductor L1 is connected to pin 7 of the NFC main control chip U7, and one end of inductor L2 is connected to pin 9 of the NFC main control chip U7. The other end of inductor L1 is connected to one end of capacitor C32 and one end of capacitor C20, respectively. The other end of capacitor C20, one end of capacitor C22, and the other end of capacitor C21 are connected to the NFC main control chip U7. One end of capacitor C23 is connected to the first and third antennas. The other ends of capacitors C32, C22, C23, C33, C24, and C25 are all grounded. The other ends of inductor L2 and capacitor C33 are connected to one end of capacitor C21. One end of resistor R26 is connected to pin 13 of the NFC main control chip U7. The other end of resistor R26 is connected to one end of capacitor C26. The other ends of capacitors C21, C24, C25, and C26 are all connected to the second and fourth antennas.
[0029] The charging circuit includes a charging IC circuit and a battery protection circuit. The output terminal of the charging IC circuit is connected to the input terminal of the battery protection circuit.
[0030] The IC circuit includes a charging interface, resistors R4, R3, R5, R6, and R8, capacitor C1, resistor R25, IC chip U3, resistor R27, and capacitor C2. The charging interface has 10 contacts, and IC chip U3 has 8 pins. Contacts 1, 2, 3, 4, 5, and 10 of the charging interface are grounded. Contacts 6 and 9 of the charging interface are connected to one end of resistor R5, one end of resistor R8, and pin 8 of IC chip U3, respectively. The other end of resistor R5 is connected to one end of resistor R6, and the other end of resistor R6 is grounded. The other end of resistor R8 is connected to one end of capacitor C1, and the other end of capacitor C1 is grounded. The data control chip U6 also has charging data receiving pins and charging data... According to the transmit pin, charging data control pin, and charging status pin, the 7th contact of the charging interface is connected to one end of resistor R3 and the charging data receive pin, and the other end of resistor R3 is grounded. The 7th contact of the charging interface is connected to one end of resistor R4 and the charging data transmit pin, and the other end of resistor R4 is grounded. The 6th pin of IC chip U3 is connected to resistor R25, and the other end of resistor R25 is grounded. The 5th pin of IC chip U3 is grounded. The 1st pin of IC chip U3 is connected to one end of capacitor C2, and the other end of capacitor C2 is grounded. The 3rd pin of IC chip U3 is connected to the charging status pin. The 4th pin of IC chip U3 is connected to one end of resistor R27 and the charging data control pin, and the other end of resistor R27 is grounded.
[0031] The charging interface has the following contact points: contact 1 is G1, contact 2 is G2, contact 3 is G3, contact 4 is G4, contact 5 is B12, contact 6 is B9, contact 7 is A5, contact 8 is B5, contact 9 is A9, and contact 10 is A12.
[0032] The charging data receiving pin is pin 24 of the data control chip U6.
[0033] The charging data transmission pin is pin 23 of the data control chip U6.
[0034] The charging data control pin is pin 16 of the data control chip U6.
[0035] The charging status pin is pin 30 of the data control chip U6.
[0036] The battery protection circuit includes a battery protection chip U4, a capacitor C8, and a resistor R1. The battery protection chip U4 has 5 pins. Pins 4 and 5 of the battery protection chip U4 are grounded. Pins 1 and 2 of the battery protection chip U4 are connected to one end of capacitor C8 and the negative terminal of the power supply battery, respectively. One end of capacitor C8 is also connected to the negative terminal of the power supply battery. One end of resistor R1 is connected to the positive terminal of the power supply battery. The other end of resistor R1 and the other end of capacitor C8 are both connected to pin 3 of the battery protection chip U4.
[0037] The display circuit is equipped with a display interface with 24 contacts. Contacts 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 22, 23 and 24 of the display interface are grounded, and contacts 1, 2, 3, 4, 5, 6, 7 and 8 of the display interface are connected to the display output pins.
[0038] It also includes a microphone circuit, which includes a microphone sensor M1, a resistor R2, and a capacitor C7. The data control chip U6 also has a microphone control pin. The microphone sensor M1 has three contacts. The third pin of the microphone sensor M1 is connected to the microphone control pin, the second pin of the microphone sensor M1 is grounded, and the first pin of the microphone sensor M1 is connected to one end of the resistor R2 and one end of the capacitor C7. The other end of the capacitor C7 is grounded, and the other end of the resistor R2 is connected to the power supply battery.
[0039] The microphone control pin is pin 32 of the data control chip U6.
[0040] In summary, the encryption circuit for e-cigarette cartridges and devices provided by this utility model effectively solves the problems of unsafe use and reduced lifespan of e-cigarette devices when users use third-party cartridges. Through the NFC anti-counterfeiting identification circuit, the device can identify the cartridge. If the device detects a matching cartridge tag, authentication is successful, and the cartridge can be powered on for use. Otherwise, the cartridge cannot be used, thus achieving anti-counterfeiting effects and improving product safety.
[0041] The specific embodiments described above are preferred embodiments of this utility model, and are not intended to limit the specific scope of this utility model. The scope of this utility model includes but is not limited to the specific embodiments described above. All equivalent changes made in accordance with this utility model are within the protection scope of this utility model.
Claims
1. An encryption circuit for an electronic cigarette cartridge / pen, characterized in that: The device includes a power supply battery, a data control circuit, an NFC anti-counterfeiting identification circuit, a charging circuit, and a display circuit. The power supply battery is connected to the input terminal of the data control circuit, which is also connected to the input terminal of the display circuit. The output terminal of the display circuit is connected to a display screen. The power supply battery is connected to the charging circuit. The output terminal of the NFC anti-counterfeiting identification circuit is connected to the input terminal of the data control circuit. The NFC anti-counterfeiting identification circuit includes an NFC main control circuit and a radio frequency circuit. The NFC main control circuit has a data output pin and a data receiving pin, which are respectively connected to the input and output terminals of the radio frequency circuit. The NFC main control circuit can cooperate with the radio frequency circuit to check whether a matching tag card exists on the e-cigarette cartridge. The data control circuit can cooperate with the NFC anti-counterfeiting identification circuit to transmit the identified information to the display circuit.
2. The encryption circuit for a cigarette cartridge / pen according to claim 1, characterized in that: The data control circuit includes a data control chip U6, which has a power input pin, a display output pin, and an anti-counterfeiting identification pin. The display output pin is connected to the input terminal of the display circuit, the anti-counterfeiting identification pin is connected to the output terminal of the NFC anti-counterfeiting identification circuit, and the power supply battery is connected to the power input pin.
3. The encryption circuit for the cartridge and device of an electronic cigarette according to claim 2, characterized in that: The data control chip U6 has 33 pins. The power input pin is pin 5 of the data control chip U6. The display output pins are pins 7, 8, 20, 25, 26, 27, 28 and 29 of the data control chip U6. The anti-counterfeiting identification pins are pins 10, 11, 12 and 13 of the data control chip U6.
4. The encryption circuit for a cigarette cartridge / pen according to claim 2, characterized in that: The NFC master control circuit includes an NFC master control chip U7, capacitor C19, resistor R9, capacitor C27, capacitor C31, capacitor C15, capacitor C16, and an active crystal oscillator Y1. The NFC master control chip U7 has 21 pins. Pins 16, 17, 18, 19, and 20 of the NFC master control chip U7 are connected to the input of the data control circuit. Pins 7 and 9 of the NFC master control chip U7 are connected to the input of the radio frequency circuit. Pin 13 of the NFC master control chip U7 is connected to the output of the radio frequency circuit. Pin 1 of the NFC master control chip U7 is connected to one end of resistor R9, one end of capacitor C19, and one end of capacitor C27. The other end of resistor R9 is connected to the power supply battery. The other end of capacitor C19... One end of the capacitor C27 is grounded, and the other end of the capacitor C31 is grounded. The 21st pin of the NFC master control chip U7 is grounded. The 11th pin of the NFC master control chip U7 is connected to one end of the capacitor C31, and the other end of the capacitor C31 is grounded. The active crystal oscillator Y1 has four pins. The 15th pin of the NFC master control chip U7 and the 1st pin of the active crystal oscillator Y1 are both connected to one end of the capacitor C15, and the other end of the capacitor C15 is grounded. The 2nd pin of the active crystal oscillator Y1 is grounded. The 14th pin of the NFC master control chip U7 and the 3rd pin of the active crystal oscillator Y1 are both connected to one end of the capacitor C16, and the other end of the capacitor C16 is grounded. The 4th pin of the active crystal oscillator Y1 is grounded. The 8th pin of the NFC master control chip U7 is connected to one end of the capacitor C27.
5. The encryption circuit for a cartridge / pen of an electronic cigarette according to claim 4, characterized in that: The radio frequency circuit includes a first antenna, a second antenna, a third antenna, a fourth antenna, an inductor L1, capacitors C20, C22, C23, C32, C33, C24, and C25, an inductor L2, a capacitor C21, a resistor R26, a capacitor C26, and a resistor R25. One end of inductor L1 is connected to pin 7 of the NFC main control chip U7, and one end of inductor L2 is connected to pin 9 of the NFC main control chip U7. The other end of inductor L1 is connected to one end of capacitor C32 and one end of capacitor C20. The other end of capacitor C20, one end of capacitor C22, and one end of capacitor C23 are connected to the NFC main control chip U7. One end of each capacitor is connected to the first antenna and the third antenna. The other ends of capacitors C32, C22, C23, C33, C24, and C25 are all grounded. The other ends of inductor L2 and capacitor C33 are connected to one end of capacitor C21. One end of resistor R26 is connected to pin 13 of the NFC main control chip U7. The other end of resistor R26 is connected to one end of capacitor C26. The other ends of capacitors C21, C24, C25, and C26 are all connected to the second antenna and the fourth antenna.
6. The encryption circuit for a cigarette cartridge / pen according to claim 2, characterized in that: The charging circuit includes a charging IC circuit and a battery protection circuit, with the output terminal of the charging IC circuit connected to the input terminal of the battery protection circuit.
7. The encryption circuit for a cigarette cartridge / pen according to claim 6, characterized in that: The IC circuit includes a charging interface, resistors R4, R3, R5, R6, and R8, capacitor C1, resistor R25, IC chip U3, resistor R27, and capacitor C2. The charging interface has 10 contacts, and the IC chip U3 has 8 pins. Contacts 1, 2, 3, 4, 5, and 10 of the charging interface are grounded. Contacts 6 and 9 of the charging interface are connected to one end of resistor R5, one end of resistor R8, and pin 8 of IC chip U3, respectively. The other end of resistor R5 is connected to one end of resistor R6, which is grounded. The other end of resistor R8 is connected to one end of capacitor C1, which is grounded. The data control chip U6 also includes a charging data receiving pin, a charging data transmitting pin, and a charging... The charging interface has a power data control pin and a charging status pin. The 7th contact of the charging interface is connected to one end of the resistor R3 and the charging data receiving pin, and the other end of the resistor R3 is grounded. The 7th contact of the charging interface is connected to one end of the resistor R4 and the charging data transmitting pin, and the other end of the resistor R4 is grounded. The 6th pin of the IC chip U3 is connected to the resistor R25, and the other end of the resistor R25 is grounded. The 5th pin of the IC chip U3 is grounded. The 1st pin of the IC chip U3 is connected to one end of the capacitor C2, and the other end of the capacitor C2 is grounded. The 3rd pin of the IC chip U3 is connected to the charging status pin. The 4th pin of the IC chip U3 is connected to one end of the resistor R27 and the charging data control pin, and the other end of the resistor R27 is grounded.
8. The encryption circuit for a cartridge / pen of an electronic cigarette according to claim 6, characterized in that: The battery protection circuit includes a battery protection chip U4, a capacitor C8, and a resistor R1. The battery protection chip U4 has 5 pins. Pins 4 and 5 of the battery protection chip U4 are grounded. Pins 1 and 2 of the battery protection chip U4 are connected to one end of the capacitor C8 and the negative terminal of the power supply battery, respectively. One end of the capacitor C8 is also connected to the negative terminal of the power supply battery. One end of the resistor R1 is connected to the positive terminal of the power supply battery. The other end of the resistor R1 and the other end of the capacitor C8 are both connected to pin 3 of the battery protection chip U4.
9. The encryption circuit for a cigarette cartridge / pen according to claim 2, characterized in that: The display circuit is provided with a display screen interface, which has 24 contacts. Contacts 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 22, 23 and 24 of the display screen interface are grounded, and contacts 1, 2, 3, 4, 5, 6, 7 and 8 of the display screen interface are all connected to the display output pin.
10. The encryption circuit for a cartridge / pen of an electronic cigarette according to claim 2, characterized in that: It also includes a microphone circuit, which includes a microphone sensor M1, a resistor R2, and a capacitor C7. The data control chip U6 is also provided with a microphone control pin. The microphone sensor M1 is provided with three contacts. The third pin of the microphone sensor M1 is connected to the microphone control pin. The second pin of the microphone sensor M1 is grounded. The first pin of the microphone sensor M1 is connected to one end of the resistor R2 and one end of the capacitor C7. The other end of the capacitor C7 is grounded. The other end of the resistor R2 is connected to the power supply battery.