CN218515207U

CN218515207U - Dynamic detection circuit of atomizing head and aerosol generating device

Info

Publication number: CN218515207U
Application number: CN202120273759.2U
Authority: CN
Inventors: 邱伟华
Original assignee: Changzhou Paiteng Electronic Technology Co Ltd
Current assignee: Changzhou Paiteng Electronic Technology Co Ltd
Priority date: 2021-01-30
Filing date: 2021-01-30
Publication date: 2023-02-24
Anticipated expiration: 2031-01-30

Abstract

The utility model belongs to the technical field of aerosol generating device, in particular to an atomizing head dynamic detection circuit and an aerosol generating device, which comprises a cigarette cartridge, wherein a CPU, a plug detection module and a cigarette cartridge resistance value detection module which are used for controlling the work of an atomizing head are arranged in the cigarette cartridge; the smoke cartridge resistance value detection module comprises an analog switch U8, and a first signal pin of the analog switch U8 is connected with an ADC2 serial port of the CPU; the plug detection module comprises an MOS (metal oxide semiconductor) tube Q2, a pin G of the Q2 is connected with a serial port of the CPU, a pin S is inserted into the ground through an atomizing head, and a pin D is connected with a resistor R8 in series and then is connected with a serial port of an ADC1 of the CPU and a second signal pin of the analog switch respectively. When the atomising head inserted, MOS pipe Q2 'S S pin ground connection switched on, and ADC 1' S detected value also changes this moment thereupon, through the value of comparing ADC1 and ADC2 alright obtain the resistance of cigarette bullet. The scheme is simple and feasible, and the atomization head plugging detection module and the cigarette cartridge resistance value detection module are directly added on the circuit board of the original aerosol generation device, so that the automatic plugging detection and resistance value detection of the atomization head can be realized.

Description

Dynamic detection circuit of atomizing head and aerosol generating device

Technical Field

The utility model belongs to the technical field of the aerosol generates the device, concretely relates to first dynamic verification circuit of atomizing and aerosol generates device.

Background

The aerosol generating device is also called an electronic cigarette, is mainly used for quitting smoking and replacing cigarettes, has similar taste to the cigarettes, even has much more taste than common cigarettes, can suck out smoke and has clean taste like the cigarettes, and is free from tar, carbon monoxide, benzene, suspended particles and other harmful ingredients in the cigarettes. In addition, the nicotine solution forms aerosol after atomization, the aerosol is quickly diluted in the air, and the low-density aerosol is difficult to absorb again and does not form second-hand smoke. Therefore, along with the enhancement of the pursuit of people to healthy life, the aerosol generating device has good market prospect and is more and more accepted by people at present. Aerosol generating device

At present, temperature control technology has become an indispensable technology for aerosol-generating devices. The principle of the temperature control technology is to collect the initial resistance of the atomization wire and calculate the current temperature according to the change of the resistance. Therefore the required precision of control by temperature change technique to the initial resistance of atomizing silk is high, when using a new atomizing silk, all need gather and preserve initial resistance when the operation for the first time, if the user forgets to gather the update atomizing silk resistance after the cigarette bullet of renewal, cause the initial resistance of update cigarette bullet, aerosol generation device is when judging the cigarette bullet temperature, will judge the temperature according to the cigarette bullet resistance before, the temperature will produce very big error like this, can lead to the too high or too low phenomenon of atomizing silk temperature. The static power consumption can be reduced to the maximum extent, and the consumption of electric energy is extremely low.

Disclosure of Invention

The utility model aims at overcoming the unmatched problem of drive voltage after the atomizing head is changed among the prior art.

Therefore, the first aspect of the utility model provides an atomizing head dynamic detection circuit, which comprises a cigarette cartridge, wherein a CPU, a plug detection module and a cigarette cartridge resistance value detection module which are used for controlling the work of the atomizing head are arranged in the cigarette cartridge;

the smoke cartridge resistance value detection module comprises an analog switch U8, and a first signal pin of the analog switch U8 is connected with an ADC2 serial port of the CPU;

the plug detection module comprises an MOS (metal oxide semiconductor) tube Q2, a pin G of the Q2 is connected with a serial port of the CPU, a pin S is inserted into the ground through the atomizing head, and a pin D is connected with a resistor R8 in series and then is connected with a serial port of an ADC1 of the CPU and a second signal pin of the analog switch respectively.

Optionally, the CPU chip of the CPU circuit is BlueNRG-232 (QFN 32).

Optionally, the analog switch U8 has a chip model of SGM3157, and IN1 and COM ports of the chip SGM3157 are respectively connected to pins of ADC1 and ADC2 of the BlueNRG-232 (QFN 32).

Optionally, the model Q2 is a GTM20N4E3N, and the G pin of the GTM20N4E3N is connected in series with the RLD _ EN _ IO6 pin of the CPU through a 1K resistor.

Optionally, the dynamic detection circuit further includes a resistor R27, where one end of the resistor R27 is connected to the power supply, and the other end is connected to the voltage output end.

Optionally, the detection circuit further includes a DTQ3205 buck chip, and an S pin and a D pin of the DTQ3205 buck chip are respectively connected to the power supply and the output terminal.

Optionally, a ground terminal of the analog switch U8 is connected to a transmitter of the transistor Q7, and a base of the transistor Q7 is connected to a serial port of the CPU.

Optionally, the detection circuit further includes an MOS transistor Q4, and a G pin of the MOS transistor Q4 is connected to a collector of the triode Q7; the D pole of the MOS transistor Q4 is connected with the signal pin of the U8 after being connected with the resistor R16 and is connected with the output end after being connected with the resistor R33.

The second aspect of the present invention also provides an aerosol generating device, the aerosol generating device includes a battery device and a cartridge, the battery device includes as the first aspect arbitrary the dynamic detection circuit of the atomizing head.

Optionally, the cartridge includes a heating element, the battery device includes a controller, and the heating element and the dynamic detection circuit of the atomizing head are electrically connected to the controller.

The utility model belongs to the technical field of aerosol generating devices, and particularly provides an atomization head dynamic detection circuit, which comprises a cigarette cartridge, wherein a CPU, a plug detection module and a cigarette cartridge resistance value detection module which are used for controlling the work of an atomization head are arranged in the cigarette cartridge; the smoke cartridge resistance value detection module comprises an analog switch U8, and a first signal pin of the analog switch U8 is connected with an ADC2 serial port of the CPU; the plug detection module comprises an MOS (metal oxide semiconductor) tube Q2, a pin G of the Q2 is connected with a serial port of the CPU, a pin S is inserted into the ground through an atomizing head, and a pin D is connected with a resistor R8 in series and then is connected with a serial port of an ADC1 of the CPU and a second signal pin of the analog switch respectively. When the atomising head inserted, MOS pipe Q2 'S S pin ground connection switched on, and ADC 1' S detected value also changes this moment thereupon, through the value of comparing ADC1 and ADC2 alright obtain the resistance of cigarette bullet. The scheme is simple and easy to implement, and the automatic plugging detection and the resistance detection of the atomizing head can be realized by directly adding the atomizing head plugging detection module and the cigarette cartridge resistance detection module on the circuit board of the original aerosol generating device.

The present invention will be described in further detail with reference to the accompanying drawings.

Drawings

Fig. 1 is a schematic circuit diagram of a detection module of the dynamic detection circuit of the atomizing head and the aerosol generating device of the present invention;

fig. 2 is a general circuit configuration diagram of the dynamic detection circuit of the atomizing head and the aerosol generating device of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; in the description of the present invention, "a plurality" means two or more unless otherwise specified.

The embodiment of the utility model provides an atomizing head dynamic detection circuit, as shown in figure 1, comprising a controller for controlling the work of an aerosol generating device, an atomizing head plug detection module and a smoke elasticity resistance value detection module; in this embodiment, the controller is a CPU, and in other embodiments, may be a control element such as a single chip microcomputer. The smoke cartridge resistance value detection module comprises an analog switch U8, and two signal pins of the analog switch U8 are respectively connected with an ADC1 serial port and an ADC2 serial port of the CPU; the plug detection module comprises an MOS tube Q2, a pin G of the MOS tube Q2 is connected with a serial port of the CPU, a pin S is inserted into the ground through the atomizing head, and a pin D is connected with a resistor R8 in series and then is connected with an ADC1 serial port of the CPU. When the atomising head inserted, MOS pipe Q2 'S S pin ground connection switched on, and ADC 1' S detected value also changes this moment thereupon, through the value of comparing ADC1 and ADC2 alright obtain the resistance of cigarette bullet.

Alternatively, the CPU chip of the CPU circuit is blue NRG-232 (QFN 32). The chip model of the analog switch U8 is SGM3157, and the IN1 and COM ports of the SGM3157 are respectively connected with the ADC1 and ADC2 pins of the BlueNRG-232 (QFN 32). As shown in fig. 1 and 2, the S pin of the MOS transistor Q2 is connected to enable resistance detection for smoke cartridge insertion. When the socket is inserted, the S pin is grounded, and the G stage is always connected with the DIO6 pin of the CPU to realize conduction. At this time, the pin ADC1 of the CPU detects the change of the signal, and the newly inserted smoke cartridge resistance value can be obtained by comparing with the pin ADC 2. Therefore, the output voltage can be adjusted and controlled to enable the atomizing head to better match with the smoke cartridge to work.

Optionally, the model Q2 is a GTM20N4E3N, and the G pin of the GTM20N4E3N is connected in series with the RLD _ EN _ IO6 pin of the CPU through a 1K resistor. The G pin (i.e. G level) of the Q2 is connected with the DIO6 of the CPU after being connected with the resistor 1K in series, and the resistor plays the roles of buffering and circuit protection.

Optionally, the dynamic detection circuit further includes a resistor R27, where one end of the resistor R27 is connected to the power supply, and the other end is connected to the voltage output end. The voltage output end controls the work of the atomizing head. The working voltage of the atomizing head can be simply converted through the voltage of the detection resistor R27, and the function of detecting the voltage of the cigarette cartridge is achieved.

Optionally, the detection circuit further includes a DTQ3205 buck chip, and an S pin and a D pin of the DTQ3205 buck chip are respectively connected to the power supply and the output terminal. As shown in fig. 2, the G stage of the chip is connected to the collector of the transistor Q1, and the base stage of the transistor Q1 is connected to the DIO2 pin of the CPU through a 1K resistor.

In an optional scheme, a ground terminal of the analog switch U8 is connected to a transmitter stage of the transistor Q7, and a base stage of the transistor Q7 is connected to a serial port of the CPU. The transistor also comprises an MOS tube Q4, wherein a G pin of the MOS tube Q4 is connected with a collector electrode of a triode Q7; the D pole of the MOS transistor Q4 is connected with the signal pin of the U8 after being connected with the resistor R16 and is connected with the output end after being connected with the resistor R33. As shown in fig. 1, the base of the transistor Q7 is connected to DIO9 of the CPU, the collector is connected to G of the MOS transistor Q4, and the S of Q4 is connected to the power supply. The auxiliary transistor group Q3 is also for the analog switch U8 to work better, and is not described herein again.

In one particular implementation scenario: atomizing head detection circuit, including resistance R27, R17, R33, R8, R16, R34, R35, R36, R14, electric capacity C16, C11, MOS pipe Q4, Q2, Q3, analog switch U8 (SGM 3157 is a single, two-way, single-pole/double-throw (SPDT) CMOS analog switch). . It features high bandwidth (300 MHz) and low on-resistance (4.5 omega typical value)); one end of the resistor R27 is connected with a power supply VCC _ BAR, and the other end of the resistor R27 is connected with the output of VOUT (the DTQ3205 is a voltage reduction chip switch for controlling the work of the smoke bomb) to provide smoke bomb detection voltage; the G pin of the MOS tube Q4 is connected with the collector electrode of the triode Q7; the D pole of the MOS transistor Q4 is respectively connected with a resistor R16 and a resistor R33; the other end of the resistor R17 is connected with an ADC1 pin of the CPU and R18C 16; the other end of R18C 16 is connected with a D pin of the ground Q2; the pin D of Q2 is also connected to pin 2 of U8, namely GND ground and one end of R14C 11, and the pin G of Q2 is connected with R32 to the pin DIO6 of the CPU; the E pole of Q7 is connected with the D pin of Q2 and one end of R36; a pin 4 of the Q3 is connected with one end of the R12, the other end of the R12 is connected with a pin 3 of the U8, namely an IN0 pin, and a pin 2 of the Q3 is connected with a DIO6 pin of the CPU; the technical scheme has the advantages that: this technical scheme is through detecting the cigarette bullet and pulling out the resistance when inserting to prevent that the user from using new cigarette bullet, owing to forget the condition that the check resistance result leads to the cigarette bullet to burn out or the temperature can not reach, can also increase an ADC mouth and make whole scheme can carry out, if Q2' S S foot is unsettled then do not have voltage output and signal detection, the expression does not have the atomising head to insert this moment.

The embodiment of the utility model provides an aerosol generating device is still provided, including battery device and cigarette bullet, the cigarette bullet includes the atomising head, battery device includes as aforementioned atomising head dynamic detection circuit, the cigarette bullet is including generating heat the piece, battery device includes the controller, generate heat the piece and the atomising head dynamic detection circuit all with the controller electricity is connected, MOS pipe Q2' S S pin passes through the atomising head and inserts ground connection. When the atomizing head of the aerosol generating device, namely the tobacco heating element and/or the tobacco liquid atomizing element, is electrified for heating, the output power of the aerosol generating device is increased to the preset power range. The control is performed by a CPU for controlling the work of the atomizing head, and the control principle and the function are realized in the prior art and are not described in detail herein.

Optionally, the mobile terminal further comprises a prompting device, wherein the prompting device is connected to a serial port of the CPU, and the prompting device is arranged on the battery device; the prompting device is a buzzer, an electric motor or an LED lamp. High level is output to the prompting device through the serial port of the CPU, and after the CPU learns that the atomization head is updated, the prompting device sends out prompting information.

The utility model belongs to the technical field of aerosol generating device, in particular to an atomizing head dynamic detection circuit and an aerosol generating device, which comprises a cigarette cartridge, wherein a CPU, a plug detection module and a cigarette cartridge resistance value detection module which are used for controlling the work of an atomizing head are arranged in the cigarette cartridge; the smoke cartridge resistance value detection module comprises an analog switch U8, and a first signal pin of the analog switch U8 is connected with an ADC2 serial port of the CPU; the plug detection module comprises an MOS tube Q2, a pin G of the MOS tube Q2 is connected with a serial port of the CPU, a pin S is inserted into the ground through the atomizing head, and a pin D is connected with a resistor R8 in series and then is respectively connected with a serial port of the ADC1 of the CPU and a second signal pin of the analog switch. When the atomising head inserted, MOS pipe Q2 'S S pin ground connection switched on, and ADC 1' S detected value also changes this moment thereupon, through the value of comparing ADC1 and ADC2 alright obtain the resistance of cigarette bullet. The scheme is simple and easy to implement, and the automatic plugging detection and the resistance detection of the atomizing head can be realized by directly adding the atomizing head plugging detection module and the cigarette cartridge resistance detection module on the circuit board of the original aerosol generating device.

The above examples are merely illustrative of the present invention and do not limit the scope of the present invention, and all designs identical or similar to the present invention are within the scope of the present invention.

Claims

1. A dynamic detection circuit of an atomizing head is characterized in that: the cigarette cartridge comprises a cigarette cartridge, wherein a CPU (central processing unit), a plug detection module and a cigarette cartridge resistance value detection module which are used for controlling the work of an atomizing head are arranged in the cigarette cartridge;

the plug detection module comprises an MOS tube Q2, a pin G of the Q2 is connected with a serial port of the CPU, a pin S is inserted into the ground through an atomizing head, and a pin D is connected with a resistor R8 in series and then is respectively connected with a serial port of an ADC1 of the CPU and a second signal pin of the analog switch.

2. The dynamic atomisation head detection circuit of claim 1, wherein: the CPU chip model of the CPU circuit is BlueNRG-232 (QFN 32).

3. The dynamic atomisation head detection circuit according to claim 2, wherein: the chip model of the analog switch U8 is SGM3157, and an IN1 port and a COM port of the SGM3157 are respectively connected with pins ADC1 and ADC2 of the BlueNRG-232 (QFN 32).

4. The dynamic atomisation head detection circuit according to claim 2, wherein: the Q2 model is GTM20N4E3N, and a G pin of the GTM20N4E3N is connected with an RLD _ EN _ IO6 pin of the CPU in series through a 1K resistor.

5. The dynamic atomising head detection circuit of claim 2, wherein: the dynamic detection circuit further comprises a resistor R27, wherein one end of the resistor R27 is connected with the power supply, and the other end of the resistor R27 is connected with the voltage output end.

6. The dynamic atomisation head detection circuit of claim 1, wherein: the detection circuit further comprises a DTQ3205 voltage reduction chip, and an S pin and a D pin of the DTQ3205 voltage reduction chip are respectively connected with the power supply and the output end.

7. The dynamic atomising head detection circuit of claim 1, wherein: the ground terminal of the analog switch U8 is connected with the emitter of the triode Q7, and the base of the triode Q7 is connected with the serial port of the CPU.

8. The dynamic atomising head detection circuit of claim 1, wherein: the detection circuit further comprises an MOS tube Q4, and a G pin of the MOS tube Q4 is connected with a collector of a triode Q7; the D pole of the MOS transistor Q4 is connected with the signal pin of the U8 after being connected with the resistor R16 and is connected with the output end after being connected with the resistor R33.

9. An aerosol-generating device, characterized by: the aerosol-generating device comprises a battery device and a cartridge, the battery device comprising a dynamic detection circuit of a nebulisation head according to any of claims 1-8.

10. An aerosol-generating device according to claim 9, wherein: the cigarette bullet is including generating heat the piece, battery device includes the controller, generate heat the piece reach atomising head dynamic verification circuit all with the controller electricity is connected.