CN114209094B

CN114209094B - Battery protection circuit, battery pack and electronic cigarette

Info

Publication number: CN114209094B
Application number: CN202111648279.0A
Authority: CN
Inventors: 宋利军; 贺玉婷; 宋朋亮; 刘鸿飞; 周虹安
Original assignee: Xi'an Wenxian Semiconductor Technology Co ltd
Current assignee: Xi'an Wenxian Semiconductor Technology Co ltd
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2024-04-26
Anticipated expiration: 2041-12-30
Also published as: CN114209094A

Abstract

The application provides a battery protection circuit, which comprises a battery protection module and a first switch unit, wherein the battery protection module comprises an overdischarge voltage protection unit, a discharge overcurrent protection unit, a reference voltage generation unit and a logic control unit, wherein a first power supply end and a first power supply grounding end are respectively used for being electrically connected with a battery, the logic control unit is electrically connected with the first switch unit and used for controlling the on or off of the first switch unit, and the first switch unit is used for controlling the battery to supply power to a system circuit; the battery protection circuit further comprises a proximity detection module, the proximity detection module is used for being electrically connected with the proximity unit, the proximity detection module is further electrically connected with the battery protection module, the battery protection module is provided with a shipping mode, the first switch unit is disconnected in the shipping mode, the battery protection module is in a0 power consumption mode, and the proximity detection module is in a normal working mode when the battery protection module is in the shipping mode. The application also provides a battery assembly and an electronic cigarette.

Description

Battery protection circuit, battery pack and electronic cigarette

Technical Field

The application relates to the technical field of batteries, in particular to a battery protection circuit, a battery assembly and an electronic cigarette.

Background

The existing electronic cigarette generally comprises a cigarette stem and a cigarette cartridge with an atomizer, tobacco tar is stored in the cigarette cartridge, and the atomizer atomizes the tobacco tar when working; the cigarette stem is internally provided with a battery, a system circuit and an airflow sensor (such as a microphone), the battery is electrically connected with the system circuit, the system circuit is electrically connected with the atomizer and the airflow sensor respectively, when the airflow sensor detects airflow flowing caused by smoking of a user, the system circuit judges that the user has smoking actions, the system circuit controls the output power of the atomizer, and the atomizer heats atomized tobacco tar to realize smoke emission.

The inventor of the present application has found that, at present, whether a conventional electronic cigarette or a disposable electronic cigarette, a battery always needs to supply power to a system circuit, the system circuit always supplies power to an airflow sensor, and internal circuits such as the system circuit, the airflow sensor and the like can continuously consume the battery power. However, the battery is of a certain electric quantity, when the electronic cigarette with the battery of the preset electric quantity is manufactured in the production place, the electronic cigarette can be transported (for example, sea) and stored for a long time and finally sold to an end user, when the end user takes out the brand new electronic cigarette for use for the first time, the battery can be consumed or is consumed very much due to the consumption of the internal circuit of the electronic cigarette because of the long-time transportation and storage of the electronic cigarette, so that the end user cannot directly pick up the electronic cigarette to use the electronic cigarette or the electronic cigarette is not used for a short time, and because smoking has certain urgency and persistence, the experience of using the electronic cigarette by the user is poorer than that of using the traditional cigarette. Moreover, the existing electronic cigarette has single function.

Disclosure of Invention

The embodiment of the application aims to solve the technical problem of providing a battery protection circuit, a battery assembly and an electronic cigarette. The electric quantity consumption of the battery in the transportation and storage processes can be reduced, the electric quantity holding time of the battery is prolonged, and the user experience is improved.

In order to solve the technical problems described above, a first aspect of the present application provides a battery protection circuit, which is applied to an electronic cigarette, where the battery protection circuit includes a battery protection module and a first switch unit, where the battery protection module includes a first power supply terminal, a first power supply ground terminal, an overdischarge voltage protection unit, a discharge overcurrent protection unit, a reference voltage generation unit, and a logic control unit, where the first power supply terminal and the first power supply ground terminal are respectively used to be electrically connected with a battery, and the logic control unit is electrically connected with the first switch unit to be used to control on or off of the first switch unit, and the first switch unit is used to control the battery to supply power to a system circuit;

The battery protection circuit further comprises a proximity detection module, the proximity detection module is used for being electrically connected with the proximity unit, the proximity detection module is further electrically connected with the battery protection module, the battery protection module is provided with a shipping mode, the first switch unit is disconnected in the shipping mode, the battery protection module is in a 0 power consumption mode, and the proximity detection module is in a normal working mode when the battery protection module is in the shipping mode.

Optionally, at least a portion of the cells of the proximity detection module do not consume power when the battery protection module exits the shipping mode.

Optionally, when the proximity detection module generates a shipment exit signal according to the change of the proximity distance and outputs the shipment exit signal to the battery protection module, the battery protection module exits from the shipment mode, and the battery protection module or the proximity detection module controls at least part of units of the proximity detection module to consume no power, and when the battery protection module enters into the shipment mode, the battery protection module controls the proximity detection module to enter into the normal working mode.

Optionally, the battery protection module includes a second timing unit and a first shipping exit end, the proximity detection module includes a second shipping exit end, the first shipping exit end is electrically connected with the second shipping exit end and the second timing unit, when the proximity detection module generates a shipping exit signal according to the change of the proximity distance and outputs the shipping exit signal to the first shipping exit end via the second shipping exit end, the battery protection module exits from a shipping mode, the second timing unit generates a shipping entry signal and a wake-up signal after a second preset time, the shipping entry signal is used for enabling the power management module to enter into the shipping mode, and the wake-up signal is used for enabling the proximity detection module to enter into a normal working mode.

Optionally, the battery protection module includes a first energy consumption end, the first energy consumption end is electrically connected with the second timing unit, and the wake-up signal is output to the proximity detection module through the first energy consumption end; or alternatively

The wake-up signal is output to the proximity detection module via a first shipment exit.

Optionally, the proximity detection module includes a first timing unit, a proximity detection unit, a second shipping exit end, and a second shipping entry end, where the proximity detection unit is electrically connected to the proximity unit, the second timing unit and the second shipping exit end are respectively electrically connected to the proximity detection unit, and the second shipping entry end is electrically connected to the first timing unit;

The battery protection module comprises a first shipping exit end or a system end, the battery protection module further comprises a first shipping entry end, the first shipping entry end is electrically connected with the second shipping entry end, and the first shipping exit end or the system end is electrically connected with the second shipping exit end;

When the proximity detection module generates a shipping exit signal and outputs the shipping exit signal to the power management module through the second shipping exit end, the battery protection module exits the shipping mode, at least part of units except the first timing unit of the proximity detection module do not consume electricity, the first timing unit generates a shipping entry signal and a wake-up signal after a first preset time, the shipping entry signal is output to the first shipping entry end through the second shipping entry end so that the power management module enters the shipping mode, and the wake-up signal is used for enabling the proximity detection module to enter a normal working mode.

Optionally, the proximity detection module is in a 0-power consumption mode when the battery protection module exits the shipping mode.

Optionally, the proximity detection module is a capacitance detection module, and the proximity unit is a detection electrode.

Optionally, the battery protection module and the proximity detection module are located on the same chip, the first power supply end is a power supply pin, the first power ground end is a power ground pin, the proximity detection module further comprises a proximity detection pin, the proximity detection pin is electrically connected with the proximity detection unit, and the proximity detection pin is used for being electrically connected with the proximity unit; the proximity detection module is also electrically connected with the power supply pin and the power ground pin, and the first switch unit is positioned on the chip or outside the chip; or alternatively

The battery protection module is located on a first chip, the proximity detection module is located on a second chip, the first power supply end is a first power supply pin, the first power supply grounding end is a first power supply grounding pin, the proximity detection module further comprises a second power supply pin and a second power supply grounding pin, the second power supply pin and the second power supply grounding pin are respectively used for being electrically connected with a battery, the proximity detection module further comprises a proximity detection unit and a proximity detection pin, the proximity detection pin is electrically connected with the proximity detection unit, and the proximity detection pin is used for being electrically connected with the proximity unit; the second chip is electrically connected with the first chip, and the first switch unit is positioned on the first chip or outside the first chip.

A second aspect of the embodiment of the present application provides a battery assembly, which is characterized by comprising a battery and the battery protection circuit, wherein the first power supply end and the first power ground end are respectively electrically connected with the battery, and the first switch unit is used for controlling the battery to supply power to a system circuit.

A third aspect of the embodiment of the present application provides an electronic cigarette, which is characterized by comprising a system circuit, an atomizer and the battery assembly described above, wherein the second end of the first switch unit is electrically connected with the system circuit, and the system circuit is electrically connected with the atomizer.

The embodiment of the application has the following beneficial effects:

1. The electronic device can enter or exit the shipping mode by detecting the change of the approaching distance through the approaching detection module, so that the electronic device can automatically enter the shipping mode when being transported, stored or not used for a long time, the additional operation of a transporter, a warehouse or a user is not needed to be additionally arranged, the upper computer is not needed to be matched for operation, the additional operation burden is not increased, the matching of additional equipment is not needed, and the cost is reduced. The battery stops supplying power to the system circuit in the shipping mode, and components and circuits with larger power consumption such as the system circuit, the airflow sensor, the atomizer and the charging management circuit do not consume electric energy, so that the power consumption of the electronic device is reduced, the use time of the electronic device can be prolonged, even if the electronic device is transported, stored or placed for a long time, the electronic device also has sufficient electric energy, and the situation that a user does not have electricity when experiencing in a market or when the user uses the electronic device for the first time is avoided, so that the use experience of the user is improved. Moreover, the user does not need to wake up the electronic device by an extra step. Therefore, the energy consumption of the electronic device can be reduced, the long-term use habit formed by the user is not influenced, the operation of the user is not required to be increased, the electronic device is very friendly to the user, and the energy consumption of the electronic cigarette can be well reduced under the condition that the habit of the user is not changed;

2. When the approach distance is reduced, the electronic device exits the shipping mode, and when the approach distance is increased, the electronic device automatically enters the shipping mode, so that the energy consumption of the electronic device, particularly the gap time of the electronic cigarette between two cigarettes of a user, can be greatly reduced, the electronic device is also in the shipping mode, the power consumption of the electronic device can be greatly reduced by processing, the service time of the electronic device is greatly prolonged, the battery can be used for a long time, the user does not need frequent charging, and the use convenience of the user is improved;

3. The proximity detection module is always powered by a battery, the power consumption of the proximity detection module is very low, the cost is very low, the standby time of the electronic device is not reduced additionally, and the relatively high cost of the electronic device is not increased;

4. Because the first switch unit can be automatically disconnected when the electronic device is transported, stored or not used by a user, the electronic device is in a shipping mode, and the problem of false triggering of the electronic device is avoided;

5. Because the electronic device comprises the battery protection module, the safety performance of the electronic device is improved. In addition, when the electronic device is stored, stored or transported, because the electronic device is in a shipping mode, the circuits such as a system circuit, an airflow sensor and the like are not powered, and even if the electronic device is abnormal such as short circuit and the like, the electronic device does not have a safety problem.

Drawings

In order to more clearly illustrate the embodiments of the application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is an exploded view of an electronic device according to an embodiment of the present application;

FIG. 2 is a circuit block diagram of an electronic device according to an embodiment of the application;

FIG. 3 is a circuit block diagram of a similar battery protection module in accordance with the present application;

FIG. 4 is a circuit block diagram of an electronic device according to another embodiment of the application;

FIG. 5 is a circuit block diagram of an electronic device according to yet another embodiment of the present application;

FIG. 6 is a circuit block diagram of an electronic device according to yet another embodiment of the present application;

FIG. 7 is a circuit block diagram of an electronic device according to a first embodiment of the present application;

FIG. 8 is a circuit block diagram of a capacitance detecting unit according to a first embodiment of the present application;

FIG. 9 is a partial circuit block diagram of a capacitive sensing module according to a first embodiment of the application;

fig. 10 is a perspective view of a cartridge according to a first embodiment of the application;

Fig. 11 is a cross-sectional view of a cartridge according to a first embodiment of the application;

Fig. 12 is a cross-sectional view of a tobacco rod according to a first embodiment of the present application;

FIG. 13 is a circuit block diagram of an electronic device according to a second embodiment of the present application;

FIG. 14 is a circuit block diagram of an electronic device according to a third embodiment of the present application;

fig. 15 is a partial circuit block diagram of a battery protection module according to a third embodiment of the present application;

FIG. 16 is a circuit block diagram of an electronic device according to a fourth embodiment of the present application;

FIG. 17 is a circuit block diagram of a sleep logic subunit, an over-discharge voltage protection unit, and an on Guan Luoji subunit according to one embodiment of the present application;

FIG. 18 is a circuit block diagram of a sleep logic subunit, an over-discharge voltage protection unit, an on Guan Luoji subunit according to another embodiment of the present application;

FIG. 19 is a circuit block diagram of an electronic device according to a fifth embodiment of the present application;

fig. 20 is a partial circuit block diagram of a battery protection module according to a fifth embodiment of the present application;

FIG. 21 is a circuit block diagram of an electronic device according to a sixth embodiment of the present application;

FIG. 22 is a circuit block diagram of an electronic device according to a seventh embodiment of the present application;

FIG. 23 is a circuit block diagram of an electronic device according to an eighth embodiment of the present application;

FIG. 24 is a circuit block diagram of an electronic device according to a ninth embodiment of the application;

FIG. 25 is a circuit block diagram of an electronic device according to a tenth embodiment of the present application;

Fig. 26 is a partial circuit block diagram of a battery protection module according to a tenth embodiment of the present application;

fig. 27 is an exploded view of an electronic device of an eleventh embodiment of the present application;

fig. 28 is a cross-sectional view of a cartridge according to a twelfth embodiment of the application;

fig. 29 is a cross-sectional view of a tobacco rod according to a thirteenth embodiment of the present application;

fig. 30 is a cross-sectional view of a tobacco rod according to a fourteenth embodiment of the present application;

FIG. 31 is a circuit block diagram of an electronic device according to a fifteenth embodiment of the present application;

FIG. 32 is a circuit block diagram of an electronic device according to a sixteenth embodiment of the present application;

FIG. 33 is a circuit block diagram of an electronic device according to a seventeenth embodiment of the application;

fig. 34 is a flowchart of a control method of an electronic cigarette according to an eighteenth embodiment of the present application.

Detailed Description

The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

The terms "comprising" and "having" and any variations thereof, as used in the description, claims and drawings, are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or modules is not limited to only those steps or units listed but may alternatively include other steps or units not listed or inherent to such process, method, article, or apparatus. Furthermore, the terms "first," "second," and "third," etc. are used for distinguishing between different objects and not for describing a particular sequential order. The electrical connection of the present application includes direct electrical connection and indirect electrical connection, where indirect electrical connection refers to that other electronic components, pins, etc. may exist between two components of the electrical connection. The XX end referred to in the present application may or may not be an actual terminal, for example, only one end of a component or one end of a wire. The application refers to and/or includes three cases, e.g., a and/or B, including three cases A, B, A and B.

The present application provides an electronic device, such as an electronic cigarette, and the electronic device will be described below as an example of the electronic cigarette. The electronic cigarette can be a conventional electronic cigarette or a disposable electronic cigarette. Here, the conventional electronic cigarette means that the electronic cigarette can be charged, that is, after the battery of the electronic cigarette is used up, the battery can also be charged through a charging interface of the electronic cigarette, and a cartridge (mentioned later) of the electronic cigarette is a replaceable cartridge; the disposable electronic cigarette is characterized in that the electronic cigarette cannot be charged, namely the electronic cigarette cannot be used continuously after the battery electric quantity is used up, a charging interface is not arranged on the electronic cigarette, the cigarette cartridge of the disposable electronic cigarette is not replaceable, namely when one of the battery and the tobacco tar is used up, the disposable electronic cigarette cannot be used any more.

Referring to fig. 1, in the present application, an electronic cigarette 100 includes a stem 110 and a cartridge 120, and the cartridge 120 is connected to the stem 110. In one embodiment of the application, the cartridge 120 may be a replaceable cartridge, i.e., the cartridge 120 may be removed from the stem 110 and replaced with a new cartridge 120, the stem 110 may be reused, and a charging interface for battery charging may be provided on the stem 110. In another embodiment of the present application, the cartridge 120 may also be a non-replaceable cartridge, i.e., the cartridge 120 cannot be removed from the stem 110 for replacement, and no battery charging interface is provided on the stem 110 for battery charging.

In the present application, the cigarette stem 110 includes a stem housing 111, a battery assembly including a battery 2400 (see fig. 2) and a battery protection circuit 2000 (see fig. 2), a system circuit 131 (see fig. 2), and an airflow sensor 133 (see fig. 2). Wherein the stem housing 111 is hollow, and the battery assembly and system circuitry 131 are located within the stem housing 111. In the present application, the battery 2400 is a rechargeable battery 2400 such as a lithium battery, or may be a non-rechargeable battery, and the capacity of the battery 2400 is generally 100mAh-2000mAh, for example 100mAh、200mAh、300mAh、400mAh、500mAh、600mAh、700mAh、800mAh、900mAh、1000mAh、1100mAh、1200mAh、1300mAh、1400mAh、1500mAh、1600mAh、1700mAh、1800mAh、1900mAh、2000mAh、, preferably 300mAh-800mAh. The number of the batteries 2400 is one or more, and when the batteries 2400 are a plurality of the batteries, the batteries 2400 can be connected in parallel, can be connected in series or can be mixed in series and parallel, and the electronic cigarette can be arranged according to actual needs. When the electronic cigarette 100 is a common electronic cigarette, the tobacco stem housing 111 is further provided with a charging interface, the tobacco stem 110 further includes a charging management circuit, the charging management circuit is located in the tobacco stem housing 111 and is electrically connected with the charging interface, the charging management circuit is connected with the rechargeable battery via the battery protection module 2100, the charging management circuit is used for providing a charging voltage and a charging current according with a charging curve of the rechargeable battery, and the charging management circuit is generally a charging management chip and peripheral circuits thereof. When the electronic cigarette 100 is a disposable electronic cigarette, the charging interface is not disposed on the cigarette holder housing 111, and the cigarette holder 110 does not include a charging management circuit.

In the present application, referring to fig. 2, the battery protection circuit 2000 includes a battery protection module 2100, the battery protection module 2100 is electrically connected to the battery 2400, and a second resistor R2 and a first capacitor C1 are further disposed between the battery 2400 and the battery protection module 2100, where the second resistor R2 and the first capacitor C1 are used for voltage stabilizing and filtering. In addition, in other embodiments of the present application, the second resistor R2 and the first capacitor C1 may not be provided between the battery 2400 and the battery protection module 2100, or only one of them may be provided, and other circuits or electronic components may be provided.

In the present application, the battery protection module 2100 is electrically connected to the system circuit 131, the system circuit 131 is electrically connected to the airflow sensor 133 and the atomizer 132 in the cartridge 120, respectively, the battery protection module 2100 controls whether the battery 2400 supplies power to the system circuit 131, and the system circuit 131 detects whether the smoking airflow and the size of the airflow exist according to the change of the electrical signal (e.g., voltage signal, etc.) of the airflow sensor 133 triggered by the airflow flow during smoking, and further controls whether the atomizer 132 operates and the size of the power. In the present application, the system circuit 131 includes a micro control unit (MCU, microcontroller Unit) or the like, and the airflow sensor 133 is, for example, a microphone or MEMS or the like. Generally, due to the arrangement of the airflow sensor 133, the electronic cigarette does not need to be provided with a switch key or a power key, so that the electronic cigarette is more similar to a traditional cigarette, and a user can use the electronic cigarette by taking the electronic cigarette up, does not need to add additional operations, is more in line with the use habit of the user, and can prompt the user of the traditional cigarette to quickly convert into the user of the electronic cigarette.

In the present application, referring to fig. 1 and 2 in combination, the cartridge 120 includes a mouthpiece 122, a cartridge body 121, an atomizer 132, and a tobacco tar. One end (lower end) of the cartridge body 121 is connected to the stem 110, and the other end (upper end) of the cartridge body 121 is connected to the mouthpiece 122. The cartridge body 121 is hollow, an atomizer 132 and tobacco tar are arranged in the cartridge body, the atomizer 132 is electrically connected with a system circuit 131 in the tobacco stem 110, and the system circuit 131 controls whether the atomizer 132 works and the power, so as to control the smoke. The amount of tobacco tar is also provided in the cartridge body 121, and is of course constant in each cartridge 120, and may vary from one e-cigarette to another, for example, between 0.3ml and 5ml, for example, between 0.3ml, 0.5ml, 0.7ml, 1ml, 1.2ml, 1.4ml, 1.5ml, 1.6ml, 1.8ml, 2ml, 2.2ml, 2.4ml, 2.5ml, 2.6ml, 2.8ml, 3ml, 4ml, 5ml, etc., preferably between 1ml and 3 ml.

With continued reference to fig. 2 and 3, in the present application, the battery protection module 2100 is used to protect the battery 2400 from damage in the case of overdischarge voltage, overdischarge current, over-temperature, etc. of the battery 2400, and prevent damage to the battery 2400 itself. In the present application, the battery protection module 2100 includes a first power supply terminal VDD1, a first power supply ground terminal GND1, a reference voltage generating unit, an over-discharge voltage protection unit 2140, a discharge over-current protection unit, a logic control unit 2110, an over-charge voltage protection unit, a charge over-current protection unit, a system terminal VM, and the like, and the first power supply terminal VDD1 and the first power supply ground terminal GND1 are electrically connected to the positive and negative electrodes of the battery 2400, respectively, so that the battery 2400 can supply power to the battery protection module 2100. The system side VM is used to monitor the current flowing through the system circuit 131, although the system side VM may have other functions.

In the present application, the reference voltage generating unit supplies the reference voltage to the over-discharge voltage protecting unit 2140, the discharge over-current protecting unit, and the like, thereby judging whether the battery 2400 is in an over-discharge voltage state, a discharge over-current state, a short-circuit state, and the like.

The over-discharge voltage protection unit 2140 is configured to protect the battery 2400 when detecting that the voltage of the battery 2400 is lower than the reference voltage provided by the reference voltage generation unit during the discharging process of the battery 2400, for example, to control the battery 2400 to perform only the minimum discharging, and generally stop the power supply to the system circuit 131, so as to prevent the battery 2400 from being permanently damaged due to excessive discharging.

The discharge overcurrent protection unit is configured to protect the battery 2400 and the system circuit 131 when detecting that the discharge current is excessive during the discharging process of the battery 2400, for example, the battery 2400 stops discharging, so as to prevent the battery 2400 and the system circuit 131 from being permanently damaged or causing a safety problem due to the excessive discharge current.

The logic control unit 2110 is configured to control the operation state and control logic of each module of the battery protection module 2100, and control whether the battery 2400 is discharged outwards, and the logic control unit 2110 can control the whole battery protection module 2100 to be in a 0-power consumption mode, that is, the whole logic control unit 2110 consumes almost no power.

The overcharge voltage protection unit is used for protecting the battery 2400 when detecting that the voltage of the battery 2400 is higher than the reference voltage provided by the reference voltage generation unit during the charging process of the battery 2400, preventing the battery 2400 from being charged again after being fully charged, and preventing the battery 2400 from being damaged.

The charging overcurrent detection unit is configured to protect the battery 2400 when detecting that the charging current is excessive during the charging process of the battery 2400, for example, the battery 2400 stops charging the battery 2400, so as to prevent permanent damage of the battery 2400 or occurrence of safety problems caused by the excessive charging current.

In the present application, when the electronic cigarette is a general electronic cigarette, that is, when the electronic cigarette has a charging interface, the battery protection module 2100 includes the above-mentioned overcharge voltage protection unit, the charging overcurrent protection unit, and the like. When the electronic cigarette is a disposable electronic cigarette, the electronic cigarette cannot be charged, and there is no charging interface, and in order to reduce the cost, the battery protection module 2100 may not have a charging protection module such as an overcharge voltage protection unit and a charging overcurrent protection unit, but in general, the battery protection module 2100 is a general module, and there may be an overcharge voltage protection unit and a charging overcurrent protection unit.

In the present application, the battery protection circuit 2000 further includes the first switch unit 2300, and the connection manner of the first switch unit 2300 and the battery protection module 2100 is generally as follows, although those skilled in the art can simply modify the circuit described below as needed, which is within the scope of the present application.

1. With continued reference to fig. 2, the battery protection module 2100 includes a switch control terminal CO/DO electrically connected to the logic control unit 2110, and the control terminal of the first switch unit 2300 is electrically connected to the switch control terminal CO/DO, that is, the first switch unit 2300 is located outside the battery protection module 2100 (the first switch unit 2300 is external), the first terminal of the first switch unit 2300 is electrically connected to the negative electrode of the battery 2400 (the first switch unit 2300 is arranged below), the negative electrode of the battery 2400 is grounded, and the second terminal of the first switch unit 2300 is electrically connected to the system circuit 131 and the system terminal VM, respectively. In this embodiment, the logic control unit 2110 controls the first switch unit 2300 to be turned on or turned off through the switch control end CO/DO, so when the logic control unit 2110 controls the first switch unit 2300 to be turned on, the battery 2400 can supply power to the system circuit 131 through the first switch unit 2300, the system circuit 131 is in a normal working mode, and the electronic cigarette can work normally; when the logic control unit 2110 controls the first switch unit 2300 to turn off, the battery 2400 stops supplying power to the system circuit 131, the system circuit 131 is in the 0-power consumption mode (no leakage current is considered), and further the power cannot be supplied to the air flow sensor 133 and the atomizer 132, the system circuit 131, the air flow sensor 133 and the atomizer 132 do not consume power, and the electronic cigarette cannot work normally. In an embodiment of the present application, the battery protection module 2100 may be implemented on a system-on-chip, that is, the first switch unit 2300 is not on the same system-on-chip (the first switch unit may be located on another system-on-chip or not), where the system-on-chip is the same as the chip, the system-on-chip may not include a processor, a memory, etc., and only includes some comparators, logic control units, etc., and of course, the system-on-chip may also include a processor, a memory, etc. Of course, in other embodiments of the present application, the battery protection module 2100 may not be implemented on a system-on-chip, and may be designed according to the needs of the user. In the present application, the 0 power consumption mode means that the amount of electricity of the battery 2400 is not consumed in an ideal case, and a certain leakage current exists in an actual case, and the 0 power consumption mode means that the power consumption is not actually 0, but the power consumption is close to 0.

2. Referring to fig. 4, the first switch unit 2300 is built in the battery protection module 2100 (the first switch unit 2300 is built in, and the first switch unit 2300 and the battery protection module 2100 are located on the same system-on-chip), at this time, a control end of the first switch unit 2300 is electrically connected to the logic control unit 2110, a first end of the first switch unit 2300 is electrically connected to the first power ground GND1, the first power ground GND1 is electrically connected to a negative electrode of the battery 2400 (the first switch unit 2300 is arranged below), a second end of the first switch unit 2300 is electrically connected to the system end VM of the battery protection module 2100, and the system end VM is electrically connected to the system circuit 131. In this embodiment, the logic control unit 2110 controls the first switch unit 2300 to be turned on or turned off, so that when the logic control unit 2110 controls the first switch unit 2300 to be turned on, the battery 2400 can supply power to the system circuit 131 through the first switch unit 2300, the system circuit 131 is in a normal operation mode, and when the logic control unit 2110 controls the first switch unit 2300 to be turned off, the battery 2400 stops supplying power to the system circuit 131, the system circuit 131 is in a 0 power consumption mode (without considering leakage current), and the air flow sensor 133 and the atomizer 132 are also in the 0 power consumption mode. In an embodiment of the present application, the battery protection module 2100 may be implemented on a system-on-chip, that is, the first switch unit 2300 is also implemented on a system-on-chip, that is, the battery protection module 2100 and the first switch unit 2300 are implemented on the same chip, where the system-on-chip and the chip are the same meaning, the system-on-chip may not include a processor, a memory, etc., and only include some comparators, logic control units, etc., and of course, the system-on-chip may also include a processor, a memory, etc. Of course, in other embodiments of the present application, the battery protection module 2100 may not be implemented on a system-on-chip, and may be designed according to the needs of the user.

3. Referring to fig. 5, the battery protection module 2100 includes a switch control terminal CO/DO electrically connected to the logic control unit 2110, the control terminal of the first switch unit 2300 is electrically connected to the switch control terminal CO/DO, that is, the first switch unit 2300 is located outside the battery protection module 2100 (the first switch unit 2300 is external), the first terminal of the first switch unit 2300 is electrically connected to the positive electrode of the battery 2400 (the first switch unit 2300 is disposed on top), and the second terminal of the first switch unit 2300 is electrically connected to the system circuit 131 and the system terminal VM, respectively. In this embodiment, the logic control unit 2110 controls the first switch unit 2300 to be turned on or turned off through the switch control terminal CO/DO, so that when the logic control unit 2110 controls the first switch unit 2300 to be turned on, the battery 2400 can supply power to the system circuit 131 through the first switch unit 2300, the system circuit 131 is in a normal operation mode, when the logic control unit 2110 controls the first switch unit 2300 to be turned off, the battery 2400 stops supplying power to the system circuit 131, the system circuit 131 is in a 0 power consumption mode (without considering leakage current), and further the discharge circuits of the air flow sensor 133 and the atomizer 132 and the battery 2400 are also disconnected, and the air flow sensor 133 and the atomizer 132 are also in the 0 power consumption mode. In an embodiment of the present application, the battery protection module 2100 may be implemented on a system-on-chip, that is, the first switch unit 2300 is not on the same system-on-chip (the first switch unit may be located on another system-on-chip or not), where the system-on-chip is the same as the chip, the system-on-chip may not include a processor, a memory, etc., and only includes some comparators, logic control units, etc., and of course, the system-on-chip may also include a processor, a memory, etc. Of course, in other embodiments of the present application, the battery protection module 2100 may not be implemented on a system-on-chip, and may be designed according to the needs of the user.

4. Referring to fig. 6, the first switch unit 2300 is built in the battery protection module 2100 (the first switch unit 2300 is built in, and the first switch unit 2300 and the battery protection module 2100 are made on the same system-on-chip), at this time, a control end of the first switch unit 2300 is electrically connected to the logic control unit 2110, a first end of the first switch unit 2300 is electrically connected to the first power supply end VDD1, the first power supply end VDD1 is electrically connected to the positive electrode of the battery 2400 (the first switch unit 2300 is arranged below), and a second end of the first switch unit 2300 is electrically connected to the system end VM, which is electrically connected to the system circuit 131. In this embodiment, the logic control unit 2110 controls the first switch unit 2300 to be turned on or turned off, so that when the logic control unit 2110 controls the first switch unit 2300 to be turned on, the battery 2400 can supply power to the system circuit 131 through the first switch unit 2300, the system circuit 131 is in a normal operation mode, when the logic control unit 2110 controls the first switch unit 2300 to be turned off, the battery 2400 stops supplying power to the system circuit 131, the system circuit 131 is in a 0 consumption mode (without considering leakage current), and further the discharge circuits of the air flow sensor 133, the atomizer 132 and the battery 2400 are also disconnected, and the air flow sensor 133 and the atomizer 132 are also in the 0 consumption mode. In an embodiment of the present application, the battery protection module 2100 may be implemented on a system-on-chip, that is, the first switch unit 2300 is also implemented on a system-on-chip, that is, the battery protection module 2100 and the first switch unit 2300 are implemented on the same chip, where the system-on-chip and the chip are the same meaning, the system-on-chip may not include a processor, a memory, etc., and only include some comparators, logic control units, etc., and of course, the system-on-chip may also include a processor, a memory, etc. Of course, in other embodiments of the present application, the battery protection module 2100 may not be implemented on a system-on-chip, and may be designed according to the needs of the user.

In the above 4 connection manners, the first switch unit 2300 includes a charge switch and a discharge switch, where the charge switch and the discharge switch are MOS or other suitable field effect transistors, for example, are NMOS, PMOS, etc., and the charge switch and the discharge switch are respectively electrically connected to the logic control unit 2110, for example, in fig. 2 and fig. 4, the switch control end CO/DO of the battery protection module 2100 includes a charge switch control end CO and a discharge switch control end DO, the charge switch control end is electrically connected to the control end of the charge switch, the discharge switch control end is electrically connected to the control end of the discharge switch, and the charge switch control end CO and the discharge switch control end DO are respectively electrically connected to the logic control unit 2110, so as to implement control of the charge switch and the discharge switch by the logic control unit 2110. In addition, in other embodiments of the present application, the first switching unit 2300 may further include a switching tube and a substrate control circuit, where the switching tube is a MOS or other field effect transistor, and the control end of the switching tube is electrically connected to the switching control end CO/DO, and the substrate control circuit is electrically connected to the logic control unit 2110, and the substrate control circuit is used to implement a correct bias of the substrate of the switching tube, for example, to make the switching tube be biased differently when the battery 2400 discharges and the battery 2400 charges. However, the present application is not limited thereto, and in other embodiments of the present application, the first switching unit 2300 may be implemented in other forms, for example, including only one switching tube, where the switching tube controls the discharge.

In the present application, the first switch unit 2300 is used for controlling the battery 2400 to supply power to the system circuit 131, specifically, a discharge circuit is formed by the battery 2400, the first switch unit 2300, and the system circuit 131 to supply power to the system circuit 131, and the system circuit 131 supplies power to the circuits such as the atomizer 132 and the airflow sensor 133. When the first switch unit 2300 is turned off, the system circuit 131 is not powered by the battery 2400, so that the system circuit 131, the atomizer 132 and the airflow sensor 133 are all in the 0 power consumption mode, and when the first switch unit 2300 is turned on, the system circuit 131 is powered by the battery 2400 through the first switch unit 2300, the system circuit 131 further powers the airflow sensor 133 and the atomizer 132, and the electronic cigarette works normally.

In the present application, since the battery protection circuit 2000 is provided in the electronic cigarette, the battery protection circuit 2000 includes the battery protection module 2100 and the first switching unit 2300, so that the safety of the electronic cigarette can be improved, and the safety accident of the electronic cigarette can be reduced.

In the present application, in order to actively reduce power consumption of the electronic cigarette, the power retention time of the battery 2400 is improved, and the user experience is improved, specific embodiments of the present application are described below.

First embodiment

In this embodiment, referring to fig. 1 and 2, the electronic cigarette 100 is a conventional electronic cigarette, the cartridge 120 of which is a replaceable cartridge, and when the cartridge 120 is used up, a user can detach the old cartridge 120 and replace it with a new cartridge 120; the battery 2400 in the cigarette holder 110 is a rechargeable battery 2400, for example, a lithium battery, a nickel-cadmium battery, a nickel-hydrogen battery, etc., the cigarette holder 110 includes a charging interface, the charging interface is electrically connected with the battery 2400 via the battery protection circuit 2000, the charging interface is electrically connected with an external charger, and the charger can provide voltage and current of 5V/1A or 5V/2A, for example, so as to realize charging of the battery 2400. When the electricity amount of the battery 2400 in the electronic cigarette is low, the user can connect with the charger through the charging interface, so as to charge the battery 2400. The tobacco rod 110 is a reusable tobacco rod 110 because the cartridge 120 is a replaceable cigarette.

In this embodiment, the tobacco stem 110 further includes a charging management circuit, where the charging management circuit is configured to manage the charging voltage and the charging current once, and the charging management circuit is located between the charging interface and the battery protection circuit 2000, that is, the charging interface is electrically connected to the charging management circuit, the charging management circuit is electrically connected to the battery protection circuit 2000, and the battery protection circuit 2000 is connected to the battery 2400. The battery protection module 2100 of the battery protection circuit 2000 includes an overcharge voltage protection unit, a charge overcurrent protection unit, and the overcharge voltage protection unit and the charge overcurrent protection unit are used for secondary protection of the battery 2400. Preferably, the charge management circuit is a charge management chip and its peripheral circuits.

Referring to fig. 2 and 7 in combination, in the present embodiment, the first switching unit 2300 is externally disposed and the first switching unit 2300 is disposed below, that is, the first switching unit 2300 is located outside the battery protection module 2100, and a first end of the first switching unit 2300 is electrically connected to a negative electrode of the battery 2400. In this embodiment, the second end of the first switch unit 2300 is electrically connected to the system terminal VM and the system circuit 131, respectively, the control end of the first switch unit 2300 is electrically connected to the switch control end CO/DO of the battery protection module 2100, and the switch control end CO/DO is electrically connected to the logic control unit 2110, so that the logic control unit 2110 of the battery protection module 2100 controls the on/off of the first switch unit 2300 through the switch control end CO/DO. In addition, in other embodiments of the present application, the first switching unit 2300 may be built-in and placed under.

With continued reference to fig. 7, in this embodiment, the battery protection circuit 2000 further includes a proximity detection module electrically connected to the proximity unit, where the proximity detection module and the proximity unit are not part of the system circuit 131, i.e., the proximity detection module may be powered for further use when the system circuit 131 is powered off. In this embodiment, the proximity detection module is configured to detect whether the proximity unit is close to the body of the user, when the distance between the body of the user and the proximity unit is smaller than a preset second threshold, the proximity detection module may send a signal, when the distance between the body of the user and the proximity unit is greater than the preset second threshold, the proximity detection module may send another signal, preferably the preset second threshold may be adjusted to be equal to the distance between the proximity unit and the surface of the electronic cigarette, that is, when the surface of the electronic cigarette is not touched by the user or is not touched by the user, the proximity detection module may detect the proximity unit, and further output different electrical signals, for example, when the body of the user is touching the surface of the electronic cigarette, the proximity detection module may detect and generate an electrical signal, and when the body of the user is not touching the surface of the electronic cigarette or is not touched by the contact, the proximity detection module may detect and generate another electrical signal, where the proximity or the proximity unit may be characterized by capacitance, inductance, photoelectricity, or the like. In addition, in other embodiments of the present application, the preset second threshold may be adjusted to be greater than the distance between the proximity unit and the surface of the electronic cigarette, and the user's body may be detected when the user's body is a certain distance from the surface of the electronic cigarette, preferably less than 15mm. In this embodiment, the proximity detection module is a capacitance detection module 2200. Of course, in other embodiments of the present application, the proximity detection module is not limited to the capacitance detection module 2200, and may be, for example, an infrared proximity detection module, an ultrasonic proximity detection module, or the like. The proximity detection module can detect an electric signal by touching or approaching the surface of the electronic cigarette by lips or other parts of the user without changing the using habit of the user, without changing the outer surface of the electronic cigarette or changing the small outer surface of the electronic cigarette, and the electric signal can be used for entering or exiting a shipping mode of the electronic cigarette mentioned later.

In this embodiment, the capacitance detection module 2200 includes a capacitance detection unit 2220 (see fig. 9), a second power supply terminal VDD2, and a second power ground terminal GND2. Referring to fig. 8, the capacitance detecting unit 2220 includes a sensor oscillating circuit, a sensor and reference detecting circuit, a timing counter and function option control circuit, a touch detecting circuit, an oscillating circuit, a voltage stabilizing circuit, a timing control circuit, an output mode and driving circuit, etc., and the principle of detecting the capacitance by the capacitance detecting unit 2220 is a conventional technology in the art, and will not be described herein. In addition, fig. 8 illustrates only one implementation of the capacitance detection unit 2220, and in other embodiments of the present application, the capacitance detection unit 2220 may have other implementations, may include other units, or may not include some of the above units, which may be obtained by a person skilled in the art through simple modification, which is also within the scope of the present application. In this embodiment, the capacitance detection unit 2220 is electrically connected to the second power supply terminal VDD2 and the second power ground terminal GND2, and the second power supply terminal VDD2 and the second power ground terminal GND2 are electrically connected to the positive and negative electrodes of the battery 2400, respectively, so that the battery 2400 can supply power to the capacitance detection unit 2220 to make the capacitance detection unit 2220 work.

Referring to fig. 7, in the present embodiment, the capacitance detection module 2200 further includes a capacitance detection terminal CJ, and the capacitance detection terminal CJ is electrically connected to the capacitance detection unit 2220. The electronic cigarette further includes the above-mentioned proximity unit, and the proximity unit and the proximity detection module together detect whether the body part of the user contacts or approaches the surface of the electronic cigarette, for example, whether the lips of the user contact or approach the suction nozzle 122, whether the palm of the user contacts or approaches the tobacco rod 110, etc. The proximity unit in this embodiment comprises one or more detection electrodes 2210, the detection electrodes 2210 being electrically connected to the capacitance detection terminals CJ, in this embodiment the detection electrodes 2210 being located at the mouthpiece 122 of the cartridge 120. Of course, in other embodiments of the application, the detection electrode 2210 may also be located at other locations of the electronic cigarette, such as the cigarette stem 110. In addition, in other embodiments of the present application, when the proximity detection module is an infrared proximity detection module or an ultrasonic proximity detection module, the proximity unit is an infrared proximity unit or an ultrasonic proximity unit. In addition, it is within the scope of the present application for a person skilled in the art to implement detection of whether the user's body part contacts the surface of the electronic cigarette by other conventional proximity detection techniques, such as biological proximity detection (e.g. saliva detection, biological detection, etc.).

In this embodiment, the battery assembly further includes at least one reference capacitor C2, where the reference capacitor C2 is located in the smoke rod 110, and the reference capacitor C2 and the detection electrode 2210 are connected in parallel and electrically connected together to the capacitance detection end CJ, and the reference capacitor C2 may be disposed on the system on chip or externally hung outside the system on chip. When the user does not use the electronic cigarette, a reference capacitor C2 exists between the capacitor detection end CJ and the ground, when the user uses the electronic cigarette, the user's lips contact the suction nozzle 122, an approach capacitor parallel to the reference capacitor C2 is generated between the detection electrode 2210, the lips and the ground, the total capacitor is the sum of the reference capacitor C2 and the approach capacitor, so that the total capacitor is increased, the RC time constant of the oscillating circuit in the capacitor detection unit 2220 is correspondingly increased, the RC time constant is increased, the charging and discharging period is prolonged, and the oscillator frequency is correspondingly reduced, so that whether the lips contact the suction nozzle 122 can be detected by detecting the change of the charging and discharging period or the frequency of the capacitor. In addition, in other embodiments of the present application, the capacitance detecting unit 2220 may also implement capacitance change detection in other manners, such as a capacitive voltage division manner, a charging time measurement manner, and other conventional manners. In addition, in other embodiments of the present application, the detection electrode 2210 may not be located at the mouthpiece 122 of the cartridge 120, but may also be located on the stem 110. In addition, in other embodiments of the present application, the reference capacitor C2 may not be disposed in the tobacco rod 110. In addition, in other embodiments of the present application, the total capacitance is not limited to increasing, but may also decrease when the user's lips contact the mouthpiece 122.

With continued reference to fig. 7, in this embodiment, the capacitance detection module 2200 is further electrically connected to the battery protection module 2100, and when the capacitance detection module 2200 detects a capacitance change, the capacitance detection module 2200 generates a shipping control signal and outputs the shipping control signal to the battery protection module 2100, where the shipping control signal is a shipping entry signal and/or a shipping exit signal, and the battery protection module 2100 actively enters or exits a shipping mode, in which the first switch unit 2300 is turned off to stop the power supply of the battery 2400 to the system circuit 131, so that the system circuit 131, the atomizer 132, the airflow sensor 133, etc. do not consume power under ideal conditions, and at this time, the circuits such as the system circuit 131, the atomizer 132, the airflow sensor 133, etc. are in a 0-consumption mode, and the power consumption of the circuits such as the system circuit 131, the atomizer 132, the airflow sensor 133, and the charge management circuit is close to 0.

In this embodiment, the capacitance change means that the capacitance is larger than the first threshold or the capacitance is smaller than the first threshold, where the capacitance is larger than or smaller than the first threshold includes that the total capacitance itself is larger than or smaller than the first threshold, and also includes that the charge-discharge period, frequency, etc. are larger than or smaller than the first threshold due to the change in the charge-discharge period, frequency, etc. caused by the change in the capacitance, which is also included in the range included in the capacitance change. In this embodiment, the first threshold may be preset according to the needs of the user. In this embodiment, if the first threshold is a capacitance, the first threshold is selected to be greater than the reference capacitance C2 and less than the sum of the reference capacitance C2 and the proximity capacitance.

Generally, when the user's lips contact the suction nozzle 122 of the electronic cigarette or the traditional cigarette, a time difference of several tens of milliseconds still exists from the final smoking of the user, and the application makes full use of this time difference to change the electronic cigarette from the shipping mode to the normal operation mode, i.e. to exit from the shipping mode. Specifically, in this embodiment, when the user lips contact the suction nozzle 122, the capacitance detection unit 2220 detects that the total capacitance increases, for example, through frequency, charge-discharge period, and the like, at this time, the capacitance detection unit 2220 sends a shipment exit signal to the battery protection module 2100, so that the battery protection module 2100 exits the shipment mode, the battery protection module 2100 controls the first switch unit 2300 to turn on, the battery 2400 supplies power to the system circuit 131 via the first switch unit 2300, the air flow sensor 133 and the like, the battery protection module 2100, the system circuit 131, and the air flow sensor 133 are powered, in a normal operation mode, the time from the user lips contact the suction nozzle 122 to the battery protection module 2100, the system circuit 131, and the air flow sensor 133 is in a normal operation mode, generally in the millisecond level, and the user cannot feel at all, when the user draws smoke, the air flow sensor 133 detects that the smoke airflow causes an electrical signal change, for example, the voltage signal change, the system circuit 131 detects the electrical signal change, and further controls the operation of the atomizer 132, and controls the size of smoke output according to the size of the electrical signal.

When the user's lips leave the mouthpiece 122 or when the e-cigarette exits the shipping mode for a first preset time, where the first preset time is, for example, 2-30 seconds, for example, 2 seconds, 3 seconds, 5 seconds, 10 seconds, 15 seconds, 20 seconds, 25 seconds, 30 seconds, etc., the battery protection module 2100 reenters the shipping mode, at which time the first switching unit 2300 is turned off, so that the battery 2400 is no longer supplying power to the system circuit 131, and the system circuit 131, the airflow sensor 133, and the atomizer 132 are in the 0-power consumption mode.

The electronic cigarette of the embodiment has the following advantages:

1. because the capacitance detection module 2200 and the detection electrode 2210 are additionally arranged in the electronic cigarette, the capacitance detection module 2200 and the detection electrode 2210 are not exposed on the surface of the electronic cigarette, particularly the detection electrode 2210 is not exposed, the appearance of the electronic cigarette is not required to be changed by additionally arranging the capacitance detection mode, the appearance feeling of the electronic cigarette formed by a user for a long time is met, and the electronic cigarette is easy to accept by the user;

2. The electronic cigarette can enter or exit the shipping mode by detecting the change of the capacitance through the capacitance detection module 2200, so that the electronic cigarette can automatically enter the shipping mode when being transported, stored or not used for a long time, a transporter, a warehouse or a user does not need to be additionally arranged for additional operation, an upper computer is not required to be used for cooperation operation, the electronic cigarette is particularly important for producers or transporters of a large number of electronic cigarettes, additional operation burden is not increased, and cooperation of additional equipment is not required, so that the electronic cigarette is beneficial to reducing cost. The discharging loop between the battery 2400 and the system circuit 131 is disconnected at the first switch unit 2300 in the shipping mode, so that the battery 2400 stops supplying power to the system circuit 131, and components and circuits with larger power consumption such as the system circuit 131, the airflow sensor 133, the atomizer 132 and the charging management circuit do not consume electric energy, thereby being beneficial to reducing the power consumption of the electronic cigarette, being capable of increasing the using time of the electronic cigarette, even if the electronic cigarette is transported, stored or placed for a long time, the electronic cigarette also has more sufficient electric energy, and the situation that a user does not have electricity when experiencing in a market or when using for the first time is avoided, thereby improving the using experience of the user. It is particularly important that the user does not need to wake up the e-cigarette through an extra step, for example, when the user lips contact the suction nozzle 122 of the cartridge 120, the capacitance detection module 2200 can quickly detect the capacitance change and quickly exit from the shipping mode, the first switch unit 2300 is quickly closed in a very short time, generally, the interval from the user lips contact the suction nozzle 122 of the e-cigarette to the smoking operation is tens of milliseconds, the time from the user lips contact the suction nozzle 122 to exit from the shipping mode is generally in millisecond level, the quick response can reach microsecond level, the user cannot completely feel that the battery protection module 2100 of the previous e-cigarette is in the shipping mode, when the user inhales the e-cigarette, the airflow sensor 133 such as the microphone and the MEMS are powered on, and the system circuit 131 detects the change of the electrical signal in the airflow sensor 133, so as to control the operation of the atomizer 132 and the power of the atomizer 132, and realize the smoke output. Therefore, the embodiment can reduce the energy consumption of the electronic cigarette, does not influence the long-term use habit of the user, does not need to increase the operation of the user, is very friendly to the user, and can well reduce the energy consumption of the electronic cigarette under the condition of not changing the habit of the user;

3. In this embodiment, when the user lips contact the suction nozzle 122, the electronic cigarette exits from the shipping mode, and when the user lips leave the suction nozzle 122 or contact the suction nozzle 122 for a first preset time, the electronic cigarette automatically enters into the shipping mode, the first switch unit 2300 breaks the discharging loop between the battery 2400 and the system circuit 131, so that the energy consumption of the electronic cigarette can be greatly reduced, that is, the electronic cigarette works in the normal working mode when the user smokes, and when the user does not smoke, particularly, the electronic cigarette is also in the shipping mode at the interval time between two cigarettes of the user, so that the power consumption of the electronic cigarette can be greatly reduced, the service time of the electronic cigarette can be greatly prolonged, the battery 2400 can be used for a long time, the user does not need frequent charging, and the use convenience of the user is improved;

4. in this embodiment, the capacitor detection module 2200 is always powered by the battery 2400, the power consumption of the capacitor detection module 2200 is nano-ampere level, the power consumption is very low, the standby time of the electronic cigarette is not reduced additionally, the cost of the capacitor detection module 2200 is very low, and the relatively large cost of the electronic cigarette is not increased;

5. In this embodiment, since the first switch unit 2300 is automatically turned off when the electronic cigarette is transported, stored or not used by a user, the system circuit 131 will not consume power, and even if the airflow sensor 133 is changed due to an abnormal shape (due to airflow), the electronic cigarette will not work, and there will be no problem that the electronic cigarette is erroneously triggered to work;

6. In this embodiment, since the electronic cigarette includes the battery protection module 2100, when an abnormality such as a short circuit occurs in the operation of the electronic cigarette, the battery protection module 2100 can timely pinch off the electrical connection between the battery 2400 and the system circuit 131, thereby improving the safety performance of the electronic cigarette. In addition, during storage, warehousing or transportation, because the electronic cigarette is in a shipping mode, the circuits such as the system circuit 131, the airflow sensor 133 and the like are not powered, and even if the electronic cigarette is in an abnormal state such as a short circuit and the like, the safety problem does not exist.

To enable the battery protection module 2100 to enter or exit the shipping mode when the capacitance detection module 2200 detects a change in capacitance, please refer to fig. 7 and 9 in combination, in this embodiment, the capacitance detection module 2200 is electrically connected to the battery protection module 2100. Specifically, the capacitance detection module 2200 further includes a second shipment entry end QR2 and a second shipment exit end QC2, the second shipment entry end QR2 and the second shipment exit end QC2 are electrically connected to the output end of the capacitance detection unit 2220, respectively, the battery protection module 2100 includes a first shipment entry end QR1, the first shipment entry end QR1 is electrically connected to the second shipment entry end QR2, and the first shipment entry end QR1 is used to enable the battery protection module 2100 to enter the shipment mode when receiving the shipment entry signal, and the second shipment exit end QC2 is electrically connected to the system end VM. In this embodiment, how the battery protection module 2100 enters the shipping mode after the first shipping entrance QR1 receives the shipping entrance signal can be referred to in the applicant's prior application and published patent, and the prior disclosure is also included in the scope of the disclosure of the present application and is not repeated here.

With continued reference to fig. 9, in the present embodiment, the capacitance detection module 2200 further includes a first timing unit 2230, two ends of the first timing unit 2230 are electrically connected to the second shipment entry end QR2 and the capacitance detection unit 2220, respectively, and the second shipment exit end QC2 is also electrically connected to the capacitance detection unit 2220. When the lips contact the suction nozzle 122, the capacitance detecting unit 2220 detects a capacitance change, for example, the total capacitance increases, and the capacitance detecting unit 2220 generates a shipment exit signal and outputs the shipment exit signal to the second shipment exit terminal QC2, where the shipment exit signal is a low level signal, the second shipment exit terminal QC2 outputs the shipment exit signal to the system terminal VM, and the system terminal VM is pulled from a high level to a low level (the low level is relative to the negative electrode of the battery), so as to control the battery protection module 2100 to exit the shipment mode; moreover, while the capacitance detecting unit 2220 outputs the shipment exit signal to the second shipment exit terminal QC2, the first timing unit 2230 also receives the shipment exit signal, the first timing unit 2230 performs reset timing, when the first timing unit 2230 counts to the first preset time, the first timing unit 2230 generates the shipment entry signal and outputs the shipment entry signal to the second shipment entry terminal QR2, the second shipment entry terminal QR2 outputs the shipment entry signal to the first shipment entry terminal QR1, the battery protection module 2100 controls the battery protection module 2100 to enter the shipment mode after receiving the shipment entry signal, and the battery protection module 2100 exits the shipment mode next time the user lips contact the suction nozzle. In this embodiment, when the lips leave the suction nozzle 122, the capacitance detecting unit 2220 detects the decrease of the total capacitance, and the capacitance detecting unit 2220 outputs another signal, such as a high level signal, and the first timer unit 2230 and the battery protection module 2100 do not operate, i.e., do not use the signal to enter or exit the shipping mode in this embodiment. In this embodiment, the capacitance detecting unit 2220 outputs a high level signal or a low level signal according to the change of the capacitance, and the subsequent circuit may perform high and low signal conversion through a logic gate or the like, for example, through an not gate, and a person skilled in the art may perform conversion according to the requirement of the subsequent circuit to obtain a desired signal, which is also within the scope of the present application.

In order to further reduce the energy consumption of the electronic cigarette and increase the service life of the electronic device such as the electronic cigarette, in this embodiment, at least part of the units of the battery protection module 2100 are stopped in the shipping mode. In this embodiment, at least one of the overcharge voltage protection unit, the overdischarge voltage protection unit 2140, the discharge overcurrent protection unit, the charge overcurrent protection unit, the logic control unit 2110, the reference voltage generation unit, and the like of the battery protection module 2100 is not consumed, for example, one of the overcharge voltage protection unit, the overdischarge voltage protection unit 2140, the discharge overcurrent protection unit, the charge overcurrent protection unit, the logic control unit 2110, the reference voltage generation unit is not consumed in the shipping mode, or two of the overcharge voltage protection unit, the overdischarge voltage protection unit 2140, the discharge overcurrent protection unit, the charge overcurrent protection unit, the logic control unit 2110, the reference voltage generation unit are not consumed in the shipping mode, or three of the overcharge voltage protection unit, the discharge overcurrent protection unit, the logic control unit 2110, the reference voltage generation unit are not consumed in the shipping mode, … are not consumed in the shipping mode, or the overcharge voltage protection unit, the overdischarge voltage protection unit 2140, the discharge overcurrent protection unit, the charge overcurrent protection unit, the logic control unit, the power consumption of the battery 2400 are further reduced in the shipping mode, and the power consumption of the reference voltage generation unit is not consumed. In addition, in other embodiments of the present application, the battery protection module 2100 further includes an over-temperature protection unit, etc., and the over-temperature protection unit may consume no power or power in the shipping mode, which is also within the scope of the present application.

In this embodiment, the battery protection module 2100 is not consumed in the shipping mode as a whole, that is, the battery protection module 2100 is in the 0-consumption mode, and ideally, the power consumption of the battery protection module 2100 is close to 0 in the 0-consumption mode (the battery protection module is not completely turned off in consideration of leakage current, etc.), which reduces the power consumption of the electronic cigarette to the limit. Thus, the electric quantity of the battery 2400 can be further saved, the electric quantity consumption of the battery 2400 is reduced, the electric quantity holding time of the battery 2400 is further improved, and particularly, the electric quantity holding time of the battery 2400 with small capacity can be improved.

In the present embodiment, the first switching unit 2300 is placed under, and when the battery protection module 2100 is in the shipping mode, the system side VM is pulled high (with respect to the negative electrode of the battery). When the system side VM is pulled down, the battery protection module 2100 operates normally when in the normal operating mode after exiting the shipping mode.

Referring to fig. 1, 10 and 11 in combination, in the present embodiment, the cartridge 120 includes a suction nozzle 122, a cartridge body 121, an atomizer 132 and tobacco tar, the suction nozzle 122 is connected to a first end (upper end) of the cartridge body 121, a hollow flue 125 is disposed inside the suction nozzle 122, the cartridge body 121 is hollow, and the atomizer 132 and the tobacco tar are located in the cartridge body 121.

Referring to fig. 10 and 11 in combination, in the present embodiment, the detection electrodes 2210 are disposed at the suction nozzle 122, and the number of the detection electrodes 2210 is one in the present embodiment. Specifically, the minimum distance between the detection electrode 2210 and the outer surface of the suction nozzle 122 is greater than 0, for example, the minimum distance is 0.1mm, 0.5mm, 1mm, 2mm, 3mm, 4mm, 5mm, or the like. In this embodiment, the detection electrode 2210 is located between the inner surface of the wall of the flue 125 of the mouthpiece 122 and the outer surface of the outer wall, e.g. embedded in the wall of the flue 125 or embedded in the outer wall, so that the user has the detection electrode 2210 provided in the mouthpiece 122 completely hidden from view on the surface of the mouthpiece 122. In addition, in other embodiments of the present application, the detection electrode 2210 is located between the wall and the outer wall of the flue 125, and in order to prevent the influence of water vapor and tobacco tar on the detection electrode 2210, a sealed accommodating cavity is formed between the wall and the outer wall of the flue 125, and the detection electrode 2210 is located in the accommodating cavity. In addition, in other embodiments of the application, the detection electrode 2210 may also be attached to the inner or outer surface of the wall of the flue 125, or to the inner surface of the outer wall. In the present embodiment, the number of the detection electrodes 2210 is not limited to one, and may be plural.

In this embodiment, the suction nozzle 122 has a four-layer structure, which sequentially includes a first layer, a second layer, a third layer, and a fourth layer from inside to outside, wherein a gap exists between the second layer and the third layer to form a receiving cavity, the first layer and the second layer form a flue wall, and the third layer and the fourth layer form an outer wall. In addition, in other embodiments of the present application, there may be no gap between the second layer and the third layer. In this embodiment, the detection electrode 2210 is located between the first layer and the second layer, or between the third layer and the fourth layer, or between the second layer and the third layer, or within the second layer or within the third layer, the first layer and the fourth layer are made of food-grade materials, the first layer forms the flue 125, and is in direct contact with the smoke, and the fourth layer is used for being in direct contact with the lips of the user. Food grade materials such as food grade insulating materials, e.g. food grade plastics, glass, etc., food grade plastics such as polyethylene, PET polyethylene terephthalate, HDPE high density polyethylene, PP polypropylene, PS polystyrene, etc.; the second and third layers are formed of non-food grade materials, such as conventional plastic materials, and are provided for the purpose of reducing the cost of the mouthpiece 122. In addition, in other embodiments of the present application, the suction nozzle 122 may be provided with no second layer and no third layer, or only one of the second layer and the third layer. In addition, in other embodiments of the present application, the fourth layer may also be a food-grade adhesive film, which is convenient to manufacture. In addition, in other embodiments of the present application, the suction nozzle 122 may be made of a food grade material, and the detection electrode 2210 is only embedded in the suction nozzle 122, which is convenient to manufacture. In addition, in other embodiments of the present application, the suction nozzle 122 may not be limited to a four-layer structure, and may include more layers.

In this embodiment, the detection electrode 2210 is, for example, a metal electrode, conductive cotton, conductive ink, conductive rubber, or an ITO layer, and in the case of a metal electrode, the detection electrode 2210 may be, for example, a metal sheet, a metal wire, a metal spring, or a metal film, and the metal film is, for example, a copper foil, an aluminum foil, or other metal film, preferably, a metal wire, a metal spring, or a metal film, and in this case, the material outside the detection electrode 2210 is damaged, which does not damage the user.

In this embodiment, the detection electrode 2210 extends along the central axis direction of the suction nozzle 122, the central axis direction of the suction nozzle 122 is the central axis direction of the electronic cigarette, that is, the length direction of the electronic cigarette, that is, the up-down direction of the electronic cigarette, and the detection electrode 2210 extends from one end of the suction nozzle 122 away from the cartridge body 121 (the upper end of the suction nozzle 122) to the cartridge body 121, so that the arrangement can give consideration to the use habits of different users, that is, when the contact positions of different users and the suction nozzle 122 are different, the arrangement mode of the detection electrode 2210 can be well suitable for the use habits of different users, the application range is wider, and the situation that the lips of the users contact the suction nozzle 122 and cannot trigger the total capacitance change can not occur. For example, some users are used to touch the upper end of the suction nozzle 122, some users are used to touch the middle and lower of the suction nozzle 122, and the detection electrode 2210 is arranged along the length direction of the electronic cigarette so as to adapt to the use habits of various users. Preferably, the detection electrode 2210 extends from one side of the suction nozzle 122 to the opposite side of the suction nozzle 122, so as to further improve the detection stability of the detection electrode 2210. In addition, in other embodiments of the present application, the detection electrode 2210 may be disposed around the suction nozzle 122 like a spring, and the capacitance detection effect is also better.

In the present embodiment, the detection electrode 2210 has an inverted U shape, the detection electrode 2210 extends from a first side of the suction nozzle 122 to a second side of the suction nozzle 122, the first side and the second side are disposed opposite to each other, and the detection electrode 2210 is located at one side of the flue 125. In addition, in other embodiments of the present application, the detection electrode 2210 has a wave shape, and the detection electrode 2210 is circumferentially disposed along the suction nozzle 122. In addition, in other embodiments of the present application, the detection electrode 2210 is spiral, and the central axis of the detection electrode 2210 is parallel to or coincides with the central axis of the cartridge 120. In addition, in other embodiments of the present application, the detection electrode 2210 has a long strip shape, and the detection electrode 2210 extends along the central axis direction of the suction nozzle 122. In addition, in other embodiments of the present application, the number of the detection electrodes 2210 is plural, the plurality of detection electrodes 2210 are elongated, the detection electrodes 2210 extend along the central axis direction of the suction nozzle 122, the plurality of detection electrodes 2210 are arranged along the circumferential direction of the suction nozzle 122, and the plurality of detection electrodes 2210 are arranged in parallel.

Generally speaking, some of the suction nozzles 122 are flat, and the flat suction nozzles 122 include four sides except for one end close to the tobacco stem 110 and one end far away from the tobacco stem 110, which are sequentially a first wide side wall, a second wide side wall, a first narrow side wall and a second narrow side wall, wherein the width of the wide side wall is greater than that of the narrow side wall, and the length of the wide side wall is generally equal to that of the narrow side wall. At this time, the detection electrode 2210 is preferably in an inverted U shape, and the inverted U-shaped detection electrode 2210 extends from the first wide side wall of the suction nozzle 122 to the opposite second wide side wall across the upper end of the suction nozzle 122. In addition, in other embodiments of the present application, the number of the inverted U-shaped detection electrodes 2210 is two, the two detection electrodes 2210 are respectively located at two sides of the flue 125, the two detection electrodes 2210 may be connected in parallel, and when the lips of the user contact the suction nozzle 122, the two detection electrodes 2210 form two proximity capacitances, so that the total capacitance increases more. In other embodiments of the present application, the detection electrode 2210 may be disposed on at least one of the four surfaces of the suction nozzle 122, and the detection electrode 2210 may be elongated. In addition, in other embodiments of the present application, the detection electrode 2210 is preferably located on the first and/or second wide side walls, which are relatively easily contacted by lips of a general user, and which are sometimes not contacted due to gaps between the upper and lower lips.

In the present embodiment, the detecting electrode 2210 is in an inverted U shape, and the width of the inverted U-shaped detecting electrode 2210 near the upper end of the suction nozzle 122 is smaller than the width of the middle or lower portion of the detecting electrode 2210, so that the detecting electrode can easily detect the lips and adapt to the shape of the suction nozzle. In addition, in other embodiments of the present application, the detection electrode 2210 may also have a long strip shape, the long strip-shaped detection electrode 2210 is located on the first wide side wall and/or the second wide side wall, and the width ratio of the upper end and the lower end of the detection electrode 2210 is smaller than the width in the middle of the detection electrode 2210, that is, the two ends of the detection electrode 2210 are thin and the middle is wide. In addition, in other embodiments of the present application, the detection electrode 2210 is L-shaped, and a short portion of the L-shaped detection electrode 2210 is located at the upper end of the suction nozzle 122 and at the side of the flue 125, and a long portion of the detection electrode 2210 is located on the first wide side wall or the second wide side wall.

In the present embodiment, the detection electrode 2210 is located in the suction nozzle 122, the detection electrode 2210 is electrically connected to the capacitance detection module 2200, and the detection electrode 2210 detects whether the lips of the user contact or approach the suction nozzle 122, so as to control the battery protection module 2100 to exit or enter the shipping mode. In addition, in other embodiments of the present application, the detection electrode 2210 and the capacitance detection module 2200 detect whether the lips of the user contact the suction nozzle 122, and may also be used to implement other functions of the electronic cigarette, such as counting the frequency of use of the electronic cigarette, counting the duration of time that the user contacts the suction nozzle each time, counting the duration of use of the electronic cigarette, waiting duration, and so on.

Referring to fig. 10 and 11, in this embodiment, the cartridge body 121 includes a cartridge housing 123 and a bottom plate 134, the upper end of the cartridge housing 123 is connected with the suction nozzle 122, the lower end of the cartridge housing 123 is connected with the bottom plate 134, for example, by clamping or fixedly connecting, the bottom plate 134 seals the lower end of the cartridge housing 123, an atomizer 132 is disposed on the bottom plate 134, the atomizer 132 is disposed in the cartridge housing 123, two first conductive members 124 are disposed on the bottom plate 134, the first conductive members 124 include conductive contacts, conductive pins, conductive columns, conductive tabs or fingers, and the like, the two first conductive members 124 are electrically connected with the atomizer 132 respectively, the two first conductive members 124 are used for electrically connecting with a system circuit 131 in the cigarette rod 110, so that the system circuit 131 can control the atomizer 132, and meanwhile, the arrangement of the first conductive members 124 can realize that the cartridge body 121 is separated from the cigarette rod 110, so that the cartridge 120 can be replaced.

In this embodiment, the cartridge body 121 is provided with a first electrical connector 126, the first electrical connector 126 is electrically connected to the detection electrode 2210, and the first electrical connector 126 is further used for electrically connecting to the capacitance detection module 2200. In this embodiment, the first electrical connector 126 is located at the bottom of the sidewall of the cartridge housing 123, i.e. the first electrical connector 126 is located between the inner surface and the outer surface of the cartridge housing 123, which is convenient for sealing; further, the lower portion of the cartridge housing 123 is at least partially protruded inward toward the central axis of the cartridge 120 to form an inner protrusion 135, and the first electrical connector 126 is positioned on the inner protrusion 135, or the first electrical connector 126 is partially positioned on the inner protrusion 135, and partially positioned on the cartridge housing 123, and the bottom plate 134 is recessed at a position corresponding to the inner protrusion 135. In addition, in other embodiments of the present application, the first electrical connector 126 is disposed on the base plate 134, specifically in an area outside of the two first conductive members 124, for example, outside of one of the first conductive members 124. In the present embodiment, the first electrical connector 126 includes a conductive contact, a conductive pin, a conductive post, a conductive tab, a gold finger, etc., but the present application is not limited thereto, and other connection manners capable of realizing contact electrical connection are also possible.

In this embodiment, the first electrical connector 126 is electrically connected to the detection electrode 2210 through the first intermediate connector 127, and the first intermediate connector 127 is, for example, a wire or a lead, and since the wire has an insulating layer, the wire can pass through the tobacco tar to electrically connect the detection electrode 2210 to the first electrical connector 126, that is, the first intermediate connector 127 can be located in the hollow cavity of the cartridge housing 123. In addition, a line passing channel is further provided between the inner side wall and the outer side wall of the cartridge housing 123, and extends along the central axis direction of the cartridge 120, and the line passing channel is used for accommodating the first intermediate connector 127, so as to electrically connect the detection electrode 2210 and the first electrical connector 126. Additionally, in other embodiments of the present application, the outer surface of the cartridge housing 123 is recessed inwardly to form a wire-passing channel extending in the direction of the central axis of the cartridge 120 for receiving the first intermediate connector 127. Additionally, in other embodiments of the application, the first intermediate connector 127 may be directly embedded in the cartridge housing 123.

Referring to fig. 1 and 12 in combination, in the present embodiment, the stem housing 111 is located at the lower side of the cartridge housing 123, and the interior of the stem housing 111 is hollow to form an inner cavity, and the inner cavity accommodates the battery 2400, the battery protection module 2100, the capacitance detection module 2200, the system circuit 131, the airflow sensor 133, and the like. Moreover, the lower end of the cigarette stem housing 111 is provided with a charging interface, the charging interface is electrically connected with the battery protection circuit 2000 via a charging management circuit, the side wall of the cigarette stem housing 111, which is close to the cigarette cartridge 120, is concavely formed into a concave groove 136, the concave groove 136 is used for accommodating part of the cigarette cartridge 120, so as to realize the detachable connection, such as clamping and magnetic attraction connection, of the cigarette cartridge 120 and the cigarette stem 110, and when the cigarette oil in the cigarette cartridge 120 is used up, a user can detach the cigarette cartridge 120 from the cigarette stem 110 and replace the cigarette cartridge 120 with a new cigarette cartridge 120, thereby realizing the repeated use of the cigarette stem 110. In order to realize the electrical connection between the cartridge 120 and the stem 110, in the present embodiment, two second conductive members 113 are disposed on the wall of the recess 136, and the two second conductive members 113 on the wall of the recess are disposed corresponding to the two first conductive members 124 on the cartridge 120, and the two second conductive members 113 on the wall of the recess are electrically connected to the system circuit 131. In addition, in other embodiments of the present application, the concave groove 136 may also be "U" shaped or approximately "U" shaped. When the cartridge 120 is loaded into the recess 136, the two first conductive members 124 on the cartridge 120 and the two second conductive members 113 on the stem 110 are correspondingly contacted, so as to realize contact electrical connection of the two, and the system circuit 131 is electrically connected with the atomizer 132. In this embodiment, the second conductive member 113 is preferably a spring pin (pogo pin).

In this embodiment, the groove wall of the recess 136 is further provided with a second electrical connector 112, the second electrical connector 112 is disposed corresponding to the first electrical connector 126, and the second electrical connector 112 is electrically connected to the capacitance detection module 2200. The second electrical connector 112 is in contact electrical connection with the first electrical connector 126 when the cartridge 120 is mounted in the recess 136 of the stem 110, thereby electrically connecting the capacitive sensing module 2200 with the sensing electrode 2210. In this embodiment, the second electrical connector 112 is preferably a pogo pin (pogo pin). However, the present application is not limited thereto, and in other embodiments of the present application, the second electrical connector 112 may be other electrical connection manners, as long as the first electrical connector 126 and the second electrical connector 112 can be stably connected by contact, and the first electrical connector 126 and the second electrical connector 112 are, for example, female connectors, male connectors, plug-in electrical connection of metal tubes and metal rods, and the like.

In order for the capacitance detection module 2200 to detect changes in capacitance over time, in this embodiment, the capacitance detection module 2200 is always powered by the battery 2400. Specifically, the second power supply terminal VDD2 of the capacitance detection module 2200 is electrically connected to the positive electrode of the battery 2400, and the second power ground terminal GND2 is electrically connected to the negative electrode of the battery 2400. In this embodiment, when the first switch unit 2300 is turned off, the second power supply terminal VDD2 and the second power ground terminal GND2 are still electrically connected to the battery 2400, that is, the first switch unit 2300 cannot control the battery 2400 to supply power to the capacitance detection module 2200, that is, the second power ground terminal GND2 and the first power ground terminal GND1 are electrically connected to the negative electrode of the battery 2400, that is, the second power ground terminal GND2 is not located at the system terminal VM. In addition, in other embodiments of the present application, when the first switching unit 2300 is electrically connected to the positive electrode of the battery 2400, the first terminal, the first power supply terminal VDD1, and the second power supply terminal VDD2 of the first switching unit 2300 are electrically connected to the positive electrode of the battery 2400. So that the opening or closing of the first switching unit 2300 has no effect on the power supply of the capacitance detection module 2200.

In addition, in other embodiments of the present application, the electronic cigarette further includes a cap mounted on the mouthpiece 122 for covering the mouthpiece 122, preventing the mouthpiece 122 from being contaminated, and keeping clean. When the user needs to smoke, the user only needs to take down the cigarette cap. Here, the suction nozzle 122 is internally provided with a proximity unit, the smoke cap is provided with a trigger unit, the trigger unit is correspondingly arranged with the proximity unit, when the smoke cap covers the suction nozzle 122, the trigger unit is relatively close to the proximity unit, so that the proximity detection module can detect that the trigger unit is relatively close to the proximity unit, further, a shipping entering signal is generated and sent to the battery protection module 2100, the battery protection module 2100 enters a shipping mode, when the smoke cap leaves the suction nozzle 122, the trigger unit is relatively far away from the proximity unit, the proximity detection module can detect that the trigger unit is relatively far away from the proximity unit, so that the proximity detection module generates a shipping exiting signal to the battery protection module 2100, the battery protection module 2100 exits the shipping mode, and a user can normally use the electronic cigarette, namely, the electronic cigarette triggers the battery protection module 2100 to enter or exit the shipping mode through the smoke cap in the embodiment.

Here, the proximity unit comprises a magneto-sensitive sensor, for example a hall sensor or the like, and the triggering unit comprises a magnet. In addition, in other embodiments of the present application, the proximity unit includes a transmitter, such as an infrared transmitter, an ultrasonic transmitter, etc., and a receiver, such as an infrared receiver, an ultrasonic receiver, etc., respectively, and the triggering unit includes a reflecting member, such as an aluminum reflecting member, for transmitting a signal to the reflecting member, for reflecting a signal transmitted from the transmitter to the receiver, and for receiving a signal reflected back by the reflecting member. The receiver is capable of receiving the reflected signal when the cap is on the mouthpiece and is not capable of receiving the signal when the cap is not on the mouthpiece. In addition, in other embodiments of the present application, the proximity unit includes an inductive proximity sensor, the trigger unit includes metal, or the entire smoke cap is the metal trigger unit.

Second embodiment

Referring to fig. 13, fig. 13 is a circuit block diagram of an electronic device according to a second embodiment of the present application, which is similar to the first embodiment, so that a non-described portion of the present embodiment can refer to the first embodiment, and a main difference between the present embodiment and the first embodiment is that the first switch unit 2300 is external and the first switch unit 2300 is disposed above.

Referring to fig. 13, in the present embodiment, the first switching unit 2300 is external and the first switching unit 2300 is disposed on top, that is, the first switching unit 2300 is located outside the battery protection module 2100. The first end of the first switch unit 2300 is electrically connected to the positive electrode of the battery 2400, the second end of the first switch unit 2300 is electrically connected to the system end VM and the system circuit 131, respectively, the control end of the first switch unit 2300 is electrically connected to the switch control end CO/DO of the battery protection module 2100, and the switch control end CO/DO is electrically connected to the logic control unit 2110, so that the logic control unit 2110 of the battery protection module 2100 controls the on/off of the first switch unit 2300 through the switch control end CO/DO. In addition, in other embodiments of the present application, the first switching unit 2300 may be built-in and built-up.

Referring to fig. 9 and 13 in combination, in the present embodiment, the capacitance detection module 2200 is electrically connected to the battery protection module 2100. Specifically, the capacitance detection module 2200 further includes a second shipment entry end QR2 and a second shipment exit end QC2, the second shipment entry end QR2 and the second shipment exit end QC2 are electrically connected to the capacitance detection unit 2220, respectively, the battery protection module 2100 includes a first shipment entry end QR1, the first shipment entry end QR1 is electrically connected to the second shipment entry end QR2, the first shipment entry end QR1 is used to enable the battery protection module 2100 to enter a shipment mode when receiving a shipment entry signal, and the second shipment exit end QC2 is electrically connected to the system end VM.

Referring to fig. 13 and 9 in combination, in the present embodiment, the capacitance detection module 2200 further includes a first timing unit 2230, two ends of the first timing unit 2230 are electrically connected to the second shipment entry end QR2 and the capacitance detection unit 2220, respectively, and the second shipment exit end QC2 is also electrically connected to the capacitance detection unit 2220. When the lips contact the suction nozzle 122, the capacitance detection unit 2220 detects that the total capacitance increases, the capacitance detection unit 2220 outputs a shipment exit signal to the second shipment exit terminal QC2, where the shipment exit signal is a high level signal (relative to the negative electrode of the battery), the second shipment exit terminal QC2 outputs the shipment exit signal to the system terminal VM, and the system terminal VM is pulled from low level to high level, so as to control the battery protection module 2100 to exit the shipment mode; also, while the capacitance detecting unit 2220 outputs the shipment exit signal to the second shipment exit terminal QC2, the first timing unit 2230 also receives the shipment exit signal, the first timing unit 2230 performs reset timing, and when the first timing unit 2230 times to the first preset time, the first timing unit 2230 outputs the shipment entry signal to the second shipment entry terminal QR2, the second shipment entry terminal QR2 outputs the shipment entry signal to the first shipment entry terminal QR1, and the battery protection module 2100 controls the battery protection module 2100 to enter the shipment mode after receiving the shipment entry signal. In this embodiment, when the lips leave the suction nozzle 122, the capacitance detecting unit 2220 detects the decrease of the total capacitance, and the capacitance detecting unit 2220 outputs another signal, such as a low level signal, and the first timer unit 2230 and the battery protection module 2100 do not operate, i.e., do not use the signal to enter or exit the shipping mode in this embodiment. In this embodiment, the capacitance detecting unit 2220 outputs a high level signal or a low level signal according to the change of the capacitance, and the subsequent circuit may perform high and low signal conversion through a logic gate or the like, for example, through an not gate, and a person skilled in the art may perform conversion according to the requirement of the subsequent circuit to obtain a desired signal, which is also within the scope of the present application.

In the present embodiment, the battery protection module 2100 exits the shipping mode when the system side VM is pulled low and when the system side VM is pulled high. In the present embodiment, at least a part of the units of the battery protection module 2100 do not consume power in the shipping mode, and preferably the battery protection module 2100 is in the 0-power consumption mode as a whole.

Third embodiment

Referring to fig. 14, fig. 14 is a circuit block diagram of an electronic device according to a third embodiment of the present application, and the first and second embodiments are similar to each other, so that a portion of the third embodiment, which is not described in the present application, can refer to the previous embodiments, and the main difference between the first and second embodiments is that the battery protection module 2100 further includes a first shipment exiting end QC1.

Referring to fig. 14 and 15 in combination, in the present embodiment, the second shipment exit QC2 is not directly connected to the system side VM. Specifically, the battery protection module 2100 further includes a first shipment exiting end QC1, the first shipment exiting end QC1 is electrically connected to a second shipment exiting end QC2, the first shipment exiting end QC1 is connected to an input end of the first not gate 2121, an output end of the first not gate 2121 is connected to an input end of the first or gate 2122, another input end of the first or gate 2122 is connected to the logic control unit 2110, an output end of the first or gate 2122 is connected to a control end of the first switch unit 2300, and an output end of the first or gate 2122 is electrically connected to the switch control end CO/DO. When the lips contact the suction nozzle 122, the capacitance detecting unit 2220 detects a capacitance change, for example, the total capacitance increases, the capacitance detecting unit 2220 outputs a shipment exit signal to the second shipment exit terminal QC2, where the shipment exit signal is a low level signal, the second shipment exit terminal QC2 outputs the shipment exit signal to the first shipment exit terminal QC1, the first shipment exit terminal QC1 outputs the shipment exit signal to the first not gate 2121, the shipment exit signal outputs a high level signal to the second or gate 2133 via the first not gate 2121, the second or gate 2133 controls the first switch unit 2300 to be turned on, and thus the system terminal VM is turned on with the first power ground terminal GND1, and the system terminal VM is pulled to be low level from high level, thereby controlling the battery protection module 2100 to exit from the shipment mode, and the battery protection module 2100 operates normally. In this embodiment, the first not gate 2121 is pulled down only after outputting a high level for a relatively short period of time, and the logic control unit 2110 mainly controls the on and off of the first switch unit 2300 in the normal operation mode. The manner in which the battery protection module 2100 enters the shipping mode is the same as that of the first embodiment and will not be described again here. In addition, in other embodiments of the present application, the first shipment exiting terminal QC1 may also be directly electrically connected to the system terminal VM.

Fourth embodiment

Referring to fig. 16, fig. 16 is a circuit block diagram of an electronic device according to a fourth embodiment of the present application, and the present application is similar to the first to third embodiments, so that the undescribed portion of the present application can refer to the previous embodiments, and the main difference between the present embodiment and the first to third embodiments is that the capacitance detection module 2200 includes a second shipping terminal QY2, and the battery protection module 2100 includes a first shipping terminal QY1.

In the first-third embodiments, the capacitance detection module 2200 needs to be provided with the second shipment entry end QR2 and the second shipment exit end QC2, and the capacitance detection module 2200 needs to be modified, so that the existing universal capacitance detection module 2200 is applicable, in this embodiment, the capacitance detection module 2200 is not modified, that is, the capacitance detection module 2200 is a universal circuit or chip.

Referring to fig. 16 and 17, in the present embodiment, the capacitance detection module 2200 further includes a second shipping end QY2, the second shipping end QY2 is an output end of the capacitance detection module 2200, the capacitance detection unit 2220 is electrically connected to the second shipping end QY2, the battery protection module 2100 includes a first shipping end QY1, and the second shipping end QY2 is electrically connected to the first shipping end QY 1.

In the present embodiment, the logic control unit 2110 includes a sleep logic subunit 2130 and a switch logic subunit 2150, etc., and the sleep logic subunit 2130 is electrically connected to the first shipping terminal QY1, the switch logic subunit 2150, etc., respectively. When the lips contact the suction nozzle 122, the capacitance detection unit 2220 detects a change, e.g., an increase, in capacitance, so that the output shipment exit signal reaches the first shipment end QY1 via the second shipment end QY2, and the first shipment end QY1 outputs the shipment exit signal to the sleep logic unit, which controls the battery protection module 2100 to exit the shipment mode. When the lips leave the suction nozzle 122, the capacitance detecting unit 2220 detects a change in capacitance, for example, a decrease or a restoration of the capacitance to normal, so that the output shipment entry signal reaches the first shipment end QY1 via the second shipment end QY2, the first shipment end QY1 outputs the shipment entry signal to the sleep logic unit, the switch logic subunit 2150 controls the first switch unit 2300 to be turned off, and the sleep logic unit controls the battery protection module 2100 to enter the shipment mode.

Specifically, referring to fig. 17, the sleep logic subunit 2130 includes a first and gate 2131, a second not gate 2132 and a second or gate 2133, wherein two input terminals of the first and gate 2131 are respectively connected to the output terminals of the system terminal VM and the second or gate 2133, and the output terminals of the first shipping terminal QY1 and the overdischarge voltage protection unit 2140 are respectively connected to two input terminals of the second or gate 2133, and the output terminal of the second or gate 2133 is further electrically connected to the switch logic subunit 2150; the output of the first and gate 2131 is electrically connected to the input of the second not gate 2132, and the output of the second not gate 2132 is used to control whether the battery protection module 2100 enters or exits the shipping mode. When the user lips leave the suction nozzle 122, the capacitance detection unit 2220 sends a shipping entry signal to the second shipping end QY2, the second shipping end QY2 outputs a shipping entry signal to the first shipping end QY1, the shipping entry signal is a high level signal, at this time, the second or gate 2133 receives the high level signal, the second or gate 2133 outputs the high level signal to the switch logic subunit 2150, the switch logic subunit 2150 controls the first switch unit 2300 to turn off and turn off, the voltage of the system end VM is changed from low level to high level, so that both input ends of the first and gate 2131 are at high level, the output end of the first and gate 2131 is changed to high level signal to the second not gate 2132, the second not gate 2132 is changed to low level, and the battery protection module 2100 is controlled to enter the shipping mode, at this time, the first switch unit 2133 is turned off, and at this time, all the battery protection modules 2100 are in the 0 power consumption mode, i.e. the battery protection module 2100 will not generate almost at this time. When the user lips contact the suction nozzle 122, the capacitance detecting unit 2220 sends a shipment exit signal to the second shipment terminal QY2, the second shipment terminal QY2 outputs a shipment exit signal to the first shipment terminal QY1, where the shipment exit signal is a low level signal, and since the over-discharge voltage protecting unit 2140 normally outputs a low level signal, the second or gate 2133 outputs a low level signal, so that the output terminal of the first and gate 2131 is a low level signal, and changes to a high level signal after passing through the second not gate 2132, so that the battery protecting module 2100 exits the shipment mode. As to how the signal at the output of the second not gate 2132 causes the battery protection module 2100 to enter or exit the shipping mode is a conventional technique in the art, and will not be described in detail herein. In addition, in other embodiments of the present application, the first shipping terminal QY1 may also change the system terminal VM to a low level through the first switch unit 2300, or directly pull the system terminal VM to a low level, and further exit from the shipping mode, which is already described above and will not be described herein. In addition, in other embodiments of the application, those skilled in the art may also make simple modifications or adjustments to the sleep logic subunit 2130 to enable the battery protection module 2100 to enter and exit the shipping mode.

In addition, in other embodiments of the present application, referring to fig. 18, the sleep logic unit includes a fourth or gate 2138, a second not gate 2132 and a third and gate 2137, wherein two input terminals of the fourth or gate 2138 are respectively connected to the output terminals of the system terminal VM and the third and gate 2137, and the output terminals of the first shipping terminal QY1 and the over-voltage protection unit 2140 are respectively connected to two input terminals of the third and gate 2137, and the output terminal of the third and gate 2137 is also connected to the switch logic subunit 2150; an output of the fourth or gate 2138 is electrically connected to an input of the second not gate 2132, and an output of the second not gate 2132 is used to control whether the battery protection module 2100 enters or exits the shipping mode. When the user lips leave the suction nozzle 122, the capacitance detection unit 2220 sends a shipping entry signal to the second shipping end QY2, the second shipping end QY2 outputs a shipping entry signal to the first shipping end QY1, where the shipping entry signal is a low level signal, at this time, the third and gate 2137 receives the low level signal, the third and gate 2137 outputs the low level signal, at the same time, the low level signal output by the third and gate 2137 is output to the switch logic subunit 2150, the switch logic subunit 2150 controls the first switch unit 2300 to turn off, the voltage of the system end VM is changed from high level to low level (at this time, the switch unit is disposed on, or a non-gate is added between the switch unit and the fourth or gate 2138), so that both input ends of the fourth or gate 2138 are low level, at this time, the output end of the fourth or gate 2138 is low level signal and is output to the second non-gate 2132, the second non-gate 2132 is converted to high level, and the battery protection module 2100 is controlled to enter the shipping mode, and the first switch unit 2300 is turned off, at the same time, the power consumption protection module 2100 is not almost in the power consumption protection module 2100. When the user lips contact the suction nozzle 122, the capacitance detecting unit 2220 sends a shipment exit signal to the second shipment end QY2, the second shipment end QY2 outputs a shipment exit signal to the first shipment end QY1, where the shipment exit signal is a high level signal, one of the input ends of the third and gate 2137 is a high level signal, since the overdischarge voltage protecting unit 2140 normally outputs a high level signal, the output end of the third and gate 2137 is a high level signal and outputs to the fourth or gate 2138, so that the output end of the fourth or gate 2138 is a high level signal, and changes to a low level signal after passing through the second not gate 2132, and the battery protecting module 2100 exits the shipment mode. As to how the signal at the output of the second not gate 2132 causes the battery protection module 2100 to enter or exit the shipping mode is a conventional technique in the art, and will not be described in detail herein. In addition, in other embodiments of the present application, the first shipping terminal QY1 may also change the system terminal VM to a high level through the first switch unit 2300, or directly pull the system terminal VM to a high level, and further exit from the shipping mode, which is described above and will not be repeated herein. In addition, in other embodiments of the application, those skilled in the art may also make simple modifications or adjustments to the sleep logic subunit 2130 to enable the battery protection module 2100 to enter and exit the shipping mode.

In addition, in other embodiments of the present application, the first switch may be further disposed above, when the first switch unit 2300 is disposed above, the system side VM changes from a low level to a high level to exit from the shipping mode, and the signals and circuits may be modified adaptively and simply according to the above embodiments, which is not described herein.

Fifth embodiment

Referring to fig. 19, fig. 19 is a circuit block diagram of an electronic device according to a fifth embodiment of the present application, and the present application is similar to the fourth embodiment, so that a non-described portion of the present application can refer to the fourth embodiment, and the main difference between the present embodiment and the fourth embodiment is that no shipping signal is needed.

Referring to fig. 19 and 20 in combination, in the present embodiment, the battery protection module 2100 further includes a first shipment exit terminal QC1, the first shipment exit terminal QC1 is electrically connected to a second shipment exit terminal QC2, and the first shipment exit terminal QC1 is used to make the battery protection module 2100 exit from the shipment mode, for example, the first shipment exit terminal QC1 is electrically connected to the sleep logic subunit 2130, as described above. The battery protection module 2100 further includes a second timing unit 2160, an input of the second timing unit 2160 is electrically connected to the first shipment-exit QC1, the second timing unit 2160 is configured to place the battery protection module 2100 into a shipping mode, for example, an output of the second timing unit 2160 is electrically connected to the sleep logic subunit 2130.

In this embodiment, when the lips contact the suction nozzle 122, the capacitance detection unit 2220 detects a change, e.g., an increase, of the total capacitance, and the capacitance detection unit 2220 outputs a shipment exit signal to the second shipment exit terminal QC2, where the shipment exit signal is, e.g., a low level signal, and the second shipment exit terminal QC2 outputs a shipment exit signal to the first shipment exit terminal QC1, and the first shipment exit terminal QC1 controls the battery protection module 2100 to exit the shipment mode, e.g., pull down the system terminal VM or control the first switch unit 2300 to be turned on or otherwise; also, while the first shipment exiting terminal QC1 controls the battery protection module 2100 to exit the shipment mode (power is consumed when the second timing unit 2160 is in the shipment mode) or after a while (all units do not consume power when the battery protection module 2100 is in the shipment mode, and after the battery protection module 2100 exits the shipment mode), the second timing unit 2160 also receives a shipment exit signal or a signal that the second timing unit 2160 is turned on, the second timing unit 2160 performs reset timing, the second timing unit 2160 outputs a shipment entry signal when the second timing unit 2160 counts to a second preset time, and the battery protection module 2100 enters the shipment mode. The second preset time may be equal to or different from the first preset time, and the second preset time range is, for example, 2-30 seconds, for example, 2 seconds, 3 seconds, 5 seconds, 10 seconds, 15 seconds, 20 seconds, 25 seconds, 30 seconds, and the like. In this embodiment, when the lips leave the mouthpiece 122, the capacitance detecting unit 2220 detects the total capacitance change, for example, decrease, and the capacitance detecting unit 2220 outputs another signal, for example, a high signal, and the second timing unit 2160 and the battery protection module 2100 are not operated; when the lips again contact the suction nozzle 122, the capacitance detection unit 2220 generates a shipment exit signal …, which cycles through.

In this embodiment, when the shipping mode is that the first switch unit 2300 is turned off or that the first switch unit 2300 is turned off and a part of the battery protection module 2100 is not consumed, the second timing unit 2160 may continue consuming power, so that the second timing unit 2160 can receive the shipping exit signal, and then the second timing unit 2160 performs reset timing. However, if the shipping mode is that the first switch unit 2300 is turned off and all the units of the battery protection module 2100 are not consumed, the second timing unit 2160 does not consume power, i.e., the second timing unit 2160 does not start to reset the time after the battery protection module 2100 receives the shipping exit signal, and the second timing unit 2160 needs to wait for a delay time from when the battery protection module 2100 receives the shipping exit signal to when the battery protection module exits the shipping mode (when the second timing unit 2160 is powered on), the delay time is typically in the order of microseconds, for example, 10 microseconds, 20 microseconds, 30 microseconds, 40 microseconds, 50 microseconds, and the like, and the delay time is generally negligible relative to the second preset time due to the difference in the order of magnitude of the delay time relative to the second preset time; also, the second timing unit 2160 starts to reset the timing when the battery protection module 2100 exits the shipping mode, and the second timing unit 2160 generates a shipping exit signal when the timing reaches a second preset time, and the battery protection module 2100 enters the shipping mode.

Sixth embodiment

Referring to fig. 21, fig. 21 is a circuit block diagram of an electronic device according to a sixth embodiment of the present application, and the present application is similar to the first to fifth embodiments, so that a part not described in the present embodiment can refer to the previous embodiment, and the main difference between the present embodiment and the previous embodiment is that the battery protection circuit 2000 further includes a first resistor R1 and a third switch unit 2900.

In this embodiment, the second shipping entrance end QR2 of the capacitance detection module 2200 is electrically connected to the first power supply end VDD1 via the first resistor R1, the second resistor R2 has the same resistance as the first resistor R1, and the second shipping entrance end QR2 is in a high resistance state in a normal state. Specifically, in the present embodiment, the battery protection circuit 2000 further includes the third switch unit 2900, where the input terminal of the third switch unit 2900 is connected to the first level, and the first level is 0, that is, the ground, but the first level may not be 0, as long as the voltage at the first power supply terminal VDD1 is lower than the preset threshold voltage when the third switch unit 2900 is turned on. The output end of the third switch unit 2900 is electrically connected to one end of the first resistor R1, the other end of the first resistor R1 is electrically connected to the power supply end VDD, the control end of the third switch unit 2900 is electrically connected to the second shipboard entry end QR2 of the capacitance detection module 2200, under a general condition, the third switch unit 2900 is disconnected, at this time, the second shipboard entry end QR2 is in a high-resistance state, when the user lips leave the suction nozzle, the capacitance detection module 2200 generates a shipboard entry signal, the shipboard entry signal controls the third switch unit 2900 to be turned on through the second shipboard entry end QR2, at this time, a branch formed by the second resistor R2, the first resistor R1 and the third switch unit 2900 is turned on, and since the resistance values of the second resistor R2 and the first resistor R1 are the same, the second resistor R2 and the first resistor R1 divide the battery voltage, so that the voltage signal received at the first power supply end VDD1 is reduced, in this embodiment, the battery voltage is reduced to a half, the general half battery voltage is lower than the preset threshold voltage, the general half battery voltage, and the general threshold voltage is in the depth range of 2.8V-2V 2.8-2V 2, and the general threshold voltage is lower than the threshold voltage of 2400V 2.1-V2. Thus, when the third switch unit 2900 is turned on, the over-discharge voltage protection unit 2140 detects that the voltage of the first power supply terminal VDD1 is lower than the preset threshold voltage, and at this time, the over-discharge voltage protection unit 2140 controls the first switch unit 2300 to be turned off through the switch control terminal CO/DO, and the battery protection module 2100 enters a shipping mode in which the battery protection module 2100 is in a 0-power consumption mode as a whole. In this embodiment, the third switching unit 2900 is an NMOS transistor. However, the present application is not limited thereto, and in other embodiments of the present application, the third switch unit 2900 may be a PMOS tube. In other embodiments of the present application, the resistances of the first resistor R1 and the second resistor R2 may be different, as long as the third switch unit 2900 is turned on to enable the first power supply terminal VDD to be lower than the threshold voltage. In the present embodiment, the third switching unit 2900 is located outside the capacitance detection module 2200, but the present application is not limited thereto, and in other embodiments of the present application, the third switching unit 2900 and the capacitance detection module 2200 may be located on the same system on chip, that is, on the same chip.

After the battery protection module 2100 enters the shipping mode, the capacitance detection module 2200 detects that the voltage of the system terminal VM is pulled up, and the capacitance detection module 2200 controls the third switching unit 2900 to be turned off and turned off through the second shipping entry terminal QR2, so that the loop of the positive electrode of the battery 2400, the second resistor R2, the first resistor R1, the third switching unit 2900, and the negative electrode of the battery 2400 is turned off, thereby preventing the loop from consuming power all the time in the shipping mode and reducing the power consumption. In this embodiment, the capacitance detection module 2200 detects the voltage of the system terminal VM through the second shipment exit terminal QC 2.

In this embodiment, when the user lips contact the suction nozzle, the capacitance detecting unit 2220 generates a shipment exit signal and outputs the shipment exit signal to the second shipment exit terminal QC2, where the shipment exit signal is a low level signal, and the second shipment exit terminal QC2 outputs the shipment exit signal to the system terminal VM, and the system terminal VM is pulled from a high level to a low level, so as to control the battery protection module 2100 to exit the shipment mode.

Seventh embodiment

Referring to fig. 22, fig. 22 is a circuit block diagram of an electronic device according to a seventh embodiment of the present application, and the embodiment is similar to the first to sixth embodiments, so that the undescribed portion of the embodiment can refer to the previous embodiment, and the main difference between the embodiment and the first to sixth embodiments is that the capacitance detection module 2200 and the battery protection module 2100 are located on the same system on chip 2500, that is, the capacitance detection module 2200 and the battery protection module 2100 are located on the same chip.

In this embodiment, the battery protection module 2100 and the capacitance detection module 2200 are located on the same system on chip 2500, that is, on the same chip, which is generally referred to as a battery protection chip, where the first power supply terminal VDD1 and the second power supply terminal VDD2 may be made into the same power supply terminal, and the first power supply ground terminal GND1 and the second power supply ground terminal GND2 may be made into the same power supply ground terminal, and are power supply ground pins, so that the number of pins of the system on chip 2500 may be reduced. Moreover, the first shipping exit end QC1 and the second shipping exit end QC2 are two ends of the same electrical connection line, the first shipping entry end QR1 and the second shipping entry end QR2 may be two ends of the same electrical connection line, the first shipping end QY1 and the second shipping end QY2 are two ends of the same connection line, these are all connection ends inside the system on chip 2500, and no pin needs to be set separately. In other embodiments of the present application, the first shipping entry QR1, the second shipping entry QR2, the first shipping exit QC1, the system VM, the second shipping exit QC2, the first shipping end QY1, the second shipping end QY2 may also be directly connected without wires, and it is within the scope of the present application. In this embodiment, the system terminal VM is a system pin VM, and the capacitance detection terminal CJ is a capacitance detection pin CJ.

In this embodiment, the first switch unit 2300 is located outside the on-chip system 2500, the switch control terminal CO/DO is a switch control pin CO/DO, one end of the switch control pin CO/DO is electrically connected to the logic control unit 2110, and the other end of the switch control pin CO/DO is electrically connected to the control terminal of the first switch unit 2300. In this embodiment, the number of the switch control pins CO/DO is one, and the first switch unit 2300 is one MOS. However, the present application is not limited thereto, and in other embodiments of the present application, the number of the switch control pins CO/DO is two, the first switch unit 2300 includes a charge MOS and a discharge MOS, the two switch control pins CO/DO are respectively connected to the control end of the charge MOS and the control end of the discharge MOS, the charge MOS and the discharge MOS are connected in series, the charge MOS is electrically connected to the system circuit 131, the charge MOS is electrically connected to the discharge MOS, and the discharge MOS is electrically connected to the negative electrode of the battery 2400.

Thus, the system-on-chip 2500 of the present embodiment typically requires five or six pins: the system on chip 2500 of this embodiment can realize the capacitive detection, enter or exit the shipping mode through five or six pins, and the system on chip 2500 is very compact, compared with the scheme of two separate systems on chip 2500 of the eighth embodiment in the following, the number of pins is greatly reduced. The system-on-chip 2500 of the present embodiment is not limited to five or six pins, and in other embodiments of the present application, the system-on-chip 2500 may also have pins for implementing other functions in order to implement other functions. In addition, in the present embodiment, the first switching unit 2300 is disposed below, but the present application is not limited thereto, and in other embodiments of the present application, the first switching unit 2300 may be disposed above, in which case the first end of the first switching unit 2300 is electrically connected to the positive electrode of the battery 2400.

In this embodiment, the system on chip 2500, the first switching unit 2300, and the reference capacitor C2 are mounted on the same Printed Circuit Board (PCB). Of course, in other embodiments of the present application, the system-on-chip 2500, the first switching unit 2300 are mounted on one printed circuit board, and the reference capacitor C2 may be mounted on another printed circuit board or not. In this embodiment, the printed circuit board and the battery 2400 are separately provided without being bound together. However, the present application is not limited thereto, and in other embodiments of the present application, the printed circuit board and the battery 2400 may be bound together, for example, by being adhered together by an adhesive tape, which may save space. In addition, in other embodiments of the present application, the system on chip 2500, the first switching unit 2300 may or may not be packaged together.

Eighth embodiment

Referring to fig. 23, fig. 23 is a circuit block diagram of an electronic device according to an eighth embodiment of the present application, and the present application is similar to the seventh embodiment, so that a non-described portion of the present application can refer to the seventh embodiment, and the main difference between the present embodiment and the seventh embodiment is that the first switch unit 2300 is disposed on the system-on-chip 2500, that is, the first switch unit 2300 is built-in.

In this embodiment, the battery protection module 2100, the first switch unit 2300, and the capacitance detection module 2200 are located on the same system-on-chip 2500, that is, the first switch unit 2300, the capacitance detection module 2200, and the battery protection module 2100 are located on the same chip, which is generally referred to as a battery protection chip. The first end of the first switching unit 2300 is electrically connected to a power ground pin, the second end of the first switching unit 2300 is electrically connected to a system pin VM, the system pin VM is electrically connected to the system circuit 131, and the control end of the first switching unit 2300 is electrically connected to the logic control unit 2110. In this embodiment, since the first switching unit 2300 is built in, 1-2 switching control pins CO/DO can be further saved, and the number of pins can be reduced. In addition, in other embodiments of the present application, the first switching unit 2300 may be further disposed thereon, and the first end of the first switching unit 2300 is electrically connected to the power supply pin.

In this embodiment, the system on chip 2500, the reference capacitor C2 are mounted on the same Printed Circuit Board (PCB). Of course, in other embodiments of the application, the system-on-chip 2500 is mounted on one printed circuit board and the reference capacitor C2 may or may not be mounted on another printed circuit board. In this embodiment, the printed circuit board and the battery 2400 are separately provided without being bound together. However, the present application is not limited thereto, and in other embodiments of the present application, the printed circuit board and the battery 2400 may be bound together, for example, by being adhered together by an adhesive tape, which may save space.

Ninth embodiment

Referring to fig. 24, fig. 24 is a circuit block diagram of an electronic device according to a ninth embodiment of the present application, and the present application is similar to the seventh embodiment or the eighth embodiment, so that the undescribed portion of the present application can refer to the previous embodiment, and the main difference between the present embodiment and the seventh embodiment is that the battery protection module 2100 and the capacitance detection module 2200 are located on different systems on chip, that is, on different chips.

In the present embodiment, the battery protection module 2100 is located on the first system on chip 2610, i.e., the battery protection module 2100 is located on the first chip, and the capacitance detection module 2200 is located on the second system on chip 2620, i.e., the capacitance detection module 2200 is located on the second chip. The battery protection module 2100 includes a first power supply pin VDD1 (first power supply end), a first power ground pin GND1 (first power ground end), a system pin VM (system end VM), an overdischarge voltage protection unit 2140, a discharge overcurrent protection unit, a reference voltage generation unit, a logic control unit 2110, 1-2 switch control pins CO/DO (switch control ends CO/DO), and a first shipping entry pin QR1 (first shipping entry end QR 1).

In the present embodiment, the capacitance detection module 2200 is located on the second on-chip system 2620, and the capacitance detection module 2200 includes a capacitance detection unit 2220, a capacitance detection pin CJ (capacitance detection end), a second power supply pin VDD2 (second power supply end), a second power ground pin GND2 (second power ground end), a second shipment entry pin QR2 (second shipment entry end), and a second shipment exit pin QC2 (second shipment exit end).

In this embodiment, the second power supply pin VDD2 and the second power ground pin GND2 are electrically connected to the positive and negative electrodes of the battery 2400, respectively, the capacitance detection pin CJ is electrically connected to the detection electrode 2210, the second shipment entry pin QR2 is electrically connected to the first shipment entry pin QR1, and the second shipment exit pin QC2 is electrically connected to the system pin VM. In addition, in other embodiments of the present application, the battery protection module 2100 further includes a first shipment exit pin QC1, the first shipment exit pin QC1 is electrically connected to a second shipment exit pin QC2, the first shipment exit pin QC1 is electrically connected to one of the inputs of the first or gate 2122 via a first not gate 2121, the other input of the first or gate 2122 is electrically connected to the logic control unit 2110, and the output of the first or gate 2122 is electrically connected to the switch control pin CO/DO.

In this embodiment, since two on-chip systems are provided, that is, two chips are provided, when one of the on-chip systems is damaged, repair can be performed only by replacing the corresponding on-chip system, and the entire on-chip system does not need to be replaced as in the sixth embodiment or the seventh embodiment, thereby saving costs. In this embodiment, the first system on chip 2610 and the second system on chip 2620 may or may not be packaged together.

Additionally, in other embodiments of the present application, the second on-chip system 2620 may not include the second shipment in pin QR2 and the second shipment out pin QC2, and the second on-chip system 2620 may include the second shipment pin QY2, and the second on-chip system 2620 may use the existing universal capacitance detection chip. The first system on a chip 2610 may also include a first shipping pin QY1 instead of the first shipping entry pin QR1, the first shipping pin QY1 being electrically connected to the second shipping pin QY 2. When the second shipping pin QY2 outputs different electrical signals due to the change of the capacitance, for example, outputs a high level or a low level, these signals are the shipping entry signal or the shipping exit signal, and after receiving these signals, the first shipping pin QY1 can enter or exit the shipping mode according to the signals received by the shipping pin by the first system on chip 2610. In addition, in other embodiments of the present application, the first shipping pin QY1 may be triggered only by the shipping exit signal, so that the first system-on-chip 2610 exits the shipping mode, and after a second predetermined time after exiting the shipping mode, the first system-on-chip 2610 enters the shipping mode again, and at this time, the first shipping pin QY1 does not need to detect another signal output by the capacitance detection unit 2220, which corresponds to the signal when the lips of the user leave the suction nozzle 122. In addition, in other embodiments of the present application, the battery protection module 2100 may not be provided with the first shipping entry pin QR1, and the above-described functions may be implemented through the first power supply pin VDD 1.

Additionally, in other embodiments of the present application, the second on-chip system 2620 may not include the second shipment entry pin QR2, where the second on-chip system 2620 includes the second shipment exit pin QC2, the first on-chip system 2610 includes the first shipment exit pin QC1, the first shipment exit pin QC1 is electrically connected to the second shipment exit pin QC2, the first shipment exit pin QC1 is electrically connected to the sleep logic subunit 2130, the first shipment exit pin QC1 is also electrically connected to the second timing unit 2160, the second timing unit 2160 is electrically connected to the sleep logic subunit 2130, and the sleep logic subunit 2130 is electrically connected to the switch logic subunit 2150. When the lips contact the suction nozzle 122, the capacitance detection unit 2220 generates a shipment exit signal, the shipment exit signal is output to the first shipment exit pin QC1 via the second shipment exit pin QC2, the first system on chip 2610 exits the shipment mode, after a second predetermined time after exiting the shipment mode or after the second timing unit 2160 receives the second predetermined time of the shipment exit signal, the second timing unit 2160 generates a shipment entry signal, the first system on chip 2610 reenters the shipment mode, at which time the first shipment exit pin QC1 does not need to detect another signal output by the capacitance detection unit 2220, the another signal corresponding to the signal when the user lips leave the suction nozzle 122.

Additionally, in other embodiments of the application, the battery protection module 2100 may be located on the first system-on-chip 2610 and the capacitance detection module 2200 may not be located on the second system-on-chip, in which case the capacitance detection module 2200 may be directly implemented on the printed circuit board. In addition, in other embodiments of the present application, the capacitance detection module 2200 may be located on the second system-on-chip 2620, and the battery protection module 2100 may not be located on the first system-on-chip, in which case the battery protection module 2100 may be directly formed on the printed circuit board. In addition, in other embodiments of the present application, neither the battery protection module 2100 nor the capacitance detection module 2200 may be implemented on the system-on-chip 2500, and both the capacitance detection module 2200 and the battery protection module 2100 may be implemented on one printed circuit board or on both printed circuit boards.

In this embodiment, the first switch unit 2300 is located outside the first on-chip system 2610, that is, the first switch unit 2300 is not located on the first on-chip system 2610, and the switch control terminal CO/DO is the switch control pin CO/DO, and the control terminal of the first switch unit 2300 is electrically connected to the switch control pin CO/DO. However, the present application is not limited thereto, and in other embodiments of the present application, the first switching unit 2300 may be located on the first system-on-chip 2610, and both the battery protection module 2100 and the first switching unit 2300 are located on the first system-on-chip 2610. In this embodiment, the first switching unit 2300 is disposed below, that is, the first end of the first switching unit 2300 is electrically connected to the negative electrode of the battery 2400. However, the present application is not limited thereto, and in other embodiments of the present application, the first switching unit 2300 may be further disposed on top, that is, the first end of the first switching unit 2300 is electrically connected to the positive electrode of the battery 2400.

In this embodiment, the battery assembly further includes a printed circuit board on which the first system on chip 2610, the second system on chip 2620, and the first switching unit 2300 are located, and the printed circuit board is tied together with the battery 2400, which is convenient for saving space. However, the present application is not limited thereto, and the printed circuit board may not be bound to the battery 2400 in other embodiments of the present application. In addition, in other embodiments of the present application, the battery assembly further includes a first printed circuit board on which the first system-on-chip 2610, the first switching unit 2300 are located, and a second printed circuit board on which the second system-on-chip 2620 is located, the first printed circuit board being bound or not bound with the battery 2400.

Tenth embodiment

Referring to fig. 25, fig. 25 is a circuit block diagram of an electronic device according to a tenth embodiment of the present application, and the present application is similar to the first to ninth embodiments, so that a non-described portion of the present application can refer to the previous embodiment, and the main difference between the present embodiment and the previous embodiment is that the power consumption is further reduced.

In the previous embodiment, the capacitance detection module 2200 is always powered by the battery 2400 regardless of whether the battery protection module 2100 is in the shipping mode or the normal operation mode after exiting the shipping mode, and the capacitance detection module 2200 is always in the normal operation mode, so that the capacitance detection module 2200 always consumes power, and there is room for improvement although the power consumption is relatively small. In this embodiment, the power consumption of the battery protection circuit 2000 is further reduced, and the service time of the battery 2400 is increased.

In this embodiment, when the battery protection module 2100 exits the shipping mode to be in the normal operation mode, at least a part of the capacitance detection module 2200 does not consume power, for example, the capacitance detection unit 2220 does not consume power, preferably, the capacitance detection module 2200 does not consume power as a whole, that is, the capacitance detection module 2200 is in the 0-consumption mode as a whole, at this time, the capacitance detection unit 2220 cannot detect the capacitance change, and the capacitance detection unit 2220 does not operate; when the battery protection module 2100 enters the shipping mode, the capacitance detection module 2200 resumes the power supply, the subsequent capacitance detection module 2200 is in the normal operation mode, and the capacitance detection unit 2220 can detect the capacitance change normally. Thus, compared to the previous embodiment, when the battery protection module 2100 is in the normal operation mode, at least part of the units of the capacitance detection module 2200 of the present embodiment do not consume power, and even are in the 0-consumption mode, so that the energy consumption of the battery protection circuit 2000 is further reduced, the service time of the electronic cigarette can be further prolonged, and especially, the electronic cigarette is particularly important for the disposable electronic cigarette that cannot be charged. In the present embodiment, when the system circuit 131 is not consuming power while in the shipping mode, the battery protection module 2100 is in the 0-power consumption mode, but it is also possible that at least part of the units of the battery protection module 2100 are not consuming power.

Referring to fig. 25 and 26, in an embodiment of the present application, the capacitance detection module 2200 includes a second shipment exit terminal QC2, and the second shipment exit terminal QC2 outputs a shipment exit signal when the capacitance detection module 2200 detects an increase in total capacitance, and the capacitance detection module 2200 outputs a signal different from the shipment exit signal when the capacitance detection module 2200 detects a change in total capacitance, such as a decrease or decrease, which is not required in the present embodiment. In this embodiment, the battery protection module 2100 includes a first shipment exit terminal QC1, the first shipment exit terminal QC1 is electrically connected to a second shipment exit terminal QC2, the first shipment exit terminal QC1 is used to control the battery protection module 2100 to exit from the shipment mode, meanwhile, the first shipment exit terminal QC1 is also electrically connected to the previous second timing unit 2160, the second timing unit 2160 is used to generate and output a shipment entry signal for a second preset time to make the battery protection module 2100 enter the shipment mode, and the second timing unit 2160 is also electrically connected to the capacitance detection module 2200. In this embodiment, when the capacitance detection unit 2220 outputs a shipment exit signal to the first shipment exit terminal QC1 via the second shipment exit terminal QC2, the battery protection module 2100 exits the shipment mode, and at the same time, the battery protection module 2100 or the capacitance detection module 2200 controls at least part of the capacitance detection module 2200 to consume no power, and preferably the capacitance detection module 2200 is in the 0-power consumption mode; when the second timing unit 2160 of the battery protection module 2100 counts the second preset time, the second timing unit 2160 generates a shipping entry signal, the battery protection module 2100 enters the shipping mode and outputs a wake-up signal to the capacitance detection module 2200, and the capacitance detection module 2200 wakes up in the normal operation mode. In this embodiment, the capacitance detection module 2200 includes a second energy consumption terminal NH2, the battery protection module 2100 includes a first energy consumption terminal NH1, and the first energy consumption terminal NH1 is electrically connected to the second energy consumption terminal NH2 and the second timing unit 2160, respectively, and the wake-up signal is the same as the shipping entry signal, or the wake-up signal is a signal derived from the conversion of the shipping entry signal. In addition, in other embodiments of the present application, the battery protection circuit 2000 further includes a second switching unit for controlling whether the battery 2400 supplies power to the capacitance detection module 2200, for example, a first end of the second switching unit is electrically connected to the positive electrode or the negative electrode of the battery 2400, a second end of the second switching unit is correspondingly electrically connected to the second power supply terminal VDD2 or the second power ground terminal GND2, and the second switching unit is controlled by the battery protection module 2100 and/or the capacitance detection module 2200. The second switching unit may be built in the capacitance detection module 2200 or external to the capacitance detection module 2200. In addition, in other embodiments of the present application, the first energy consumption terminal NH1 and the first shipment exiting terminal QC1 may be the same port, which has an input/output (I/O) function, and the second energy consumption terminal NH2 and the second shipment exiting terminal QC2 may be the same port, which has an input/output (I/O) function, so that the configuration may save ports and connection lines.

In addition, in another embodiment of the present application, the capacitance detection module 2200 includes a second shipment exit terminal QC2, a second shipment entry terminal QR2, and when the capacitance detection module 2200 detects a total capacitance change, for example, an increase, the second shipment exit terminal QC2 outputs a shipment exit signal, and when the capacitance detection module 2200 detects a total capacitance change, for example, a decrease or decrease, the capacitance detection module 2200 outputs a signal different from the shipment exit signal, which is not used in the present embodiment. In the present embodiment, the capacitance detection module 2200 includes a first timing unit 2230, and the first timing unit 2230 is electrically connected to the capacitance detection unit 2220 and the second shipping entrance QR2, respectively. In this embodiment, the battery protection module 2100 includes a first shipment exit terminal QC1 or a system terminal VM, and the battery protection module 2100 further includes a first shipment entry terminal QR1, where the first shipment exit terminal QC1 or the system terminal VM is electrically connected to a second shipment exit terminal QC2, and the first shipment entry terminal QR1 is electrically connected to the second shipment entry terminal QR 2. When the capacitance detection unit 2220 generates a shipment exit signal to the first shipment exit mode via the second shipment exit mode, the battery protection module 2100 exits the shipment mode and the units of the capacitance detection module 2200 except the first timing unit 2230 are at least partially not consumed, that is, the first timing unit 2230 continues to consume power, other units of the capacitance detection module 2200 are not consumed or all are not consumed, for example, the capacitance detection unit 2220 does not consume power, when the first timing unit 2230 counts a first preset time, the first timing unit 2230 generates a shipment entry signal and a wake-up signal respectively, the wake-up signal is the same as the shipment entry signal, or the wake-up signal is a signal obtained by converting the shipment entry signal, the shipment entry signal reaches the first shipment entry end QR1 via the second shipment entry end QR2, the battery protection module 2100 enters the shipment mode and the capacitance detection module 2200 resumes the power supply via the wake-up signal, and the other units of the capacitance detection module 2200 are in the normal operation mode. In addition, in other embodiments of the present application, the battery protection circuit 2000 further includes a second switching unit for controlling whether the battery 2400 supplies power to the capacitance detection module 2200 in addition to the first timing unit 2230. In the present embodiment, the second switching unit is built in the capacitance detection module 2200.

Eleventh embodiment

Referring to fig. 27, fig. 27 is a block diagram of an electronic cigarette according to an eleventh embodiment of the present application, and the present embodiment is similar to the first to tenth embodiments, so that a non-described portion of the present embodiment may refer to the previous embodiment, and the main difference between the present embodiment and the previous embodiment is that the electronic cigarette according to the present embodiment is a disposable electronic cigarette.

Referring to fig. 27, in the present embodiment, the disposable electronic cigarette includes a tobacco stem 110 and a tobacco cartridge 120, where the tobacco stem 110 is not detachably electrically connected to the tobacco cartridge 120, that is, the tobacco cartridge 120 is not replaceable, and the disposable electronic cigarette can be discarded or recovered after the tobacco cartridge 120 is used up, where the non-detachable electrical connection refers to that if the tobacco cartridge 120 is violently detached from the tobacco stem 110, the disposable electronic cigarette may cause electrical damage or physical damage, such as disconnection of a conductive wire in the tobacco stem 110 from the tobacco cartridge 120.

In the present embodiment, the cigarette stem 110 includes a stem housing 111, a battery 2400, a battery protection module 2100, a capacitance detection module 2200, a system circuit 131, an airflow sensor 133 (please refer to the previous figures in combination), and the like. Wherein the stem housing 111 is hollow, and the battery 2400, the battery protection module 2100, the capacitance detection module 2200, the system circuit 131, and the airflow sensor 133 are all located within the stem housing 111. The battery protection module 2100 is electrically connected to the battery 2400, the battery protection module 2100 is electrically connected to the system circuit 131, the system circuit 131 is electrically connected to the airflow sensor 133 and the atomizer 132 in the cartridge 120, respectively, and the battery protection module 2100 controls whether the battery 2400 supplies power to the system circuit 131. In this embodiment, the battery 2400 may be a general non-rechargeable battery 2400, or may be a rechargeable battery 2400, for example, a lithium battery 2400, and since the battery 2400 is a disposable electronic cigarette, the tobacco stem housing 111 does not set a charging interface or a charging management circuit, so that the cost can be reduced, and the battery 2400 cannot be charged after being used up, that is, when tobacco tar or one of the batteries 2400 is used up, the disposable electronic cigarette cannot be used any more, and the user can discard the electronic cigarette or recycle the electronic cigarette.

In this embodiment, the upper end of the tobacco rod housing 111 is open, that is, the tobacco rod housing 111 has no recess, the tobacco rod housing 111 is further provided with an air hole, the air hole is used for communicating air inside and outside the tobacco rod housing 111, so that when a user smokes, the air hole is smoother, the air flow sensor 133 can also detect the air flow when the user smokes, and since the tobacco rod housing 111 does not need to be provided with a charging interface, the tobacco rod housing 111 is provided with a closed type except for the air hole and the open upper end, thereby being beneficial to the appearance of the tobacco rod housing 111, and the closed type is mainly used for illustrating the arrangement without the charging interface.

In this embodiment, the cartridge 120 includes a suction nozzle 122, a cartridge body 121, an atomizer 132 and tobacco tar, where the lower end of the cartridge body 121 is clamped or fixedly connected with the upper end of the tobacco rod 110, that is, the cartridge 120 cannot be detached from the tobacco rod 110 under normal conditions, and specifically, the lower portion of the cartridge 120 is connected with the open end of the tobacco rod housing 111. The upper end of the cartridge body 121 is connected to the mouthpiece 122, and a detection electrode 2210 is provided in the mouthpiece 122. In this embodiment, the cartridge body 121 is hollow, and is internally provided with an atomizer 132 and tobacco tar, and the atomizer 132 is at least partially immersed in the tobacco tar, so that the tobacco tar can be atomized when the atomizer 132 works. The atomizer 132 is electrically connected with a system circuit 131 in the cigarette stem 110 through a wire, and the system circuit 131 controls whether the atomizer 132 works and the power, so as to control the smoke.

Specifically, the cartridge body 121 includes a cartridge housing 123 and a bottom plate 134, the upper end of the cartridge housing 123 is connected with the suction nozzle 122, the lower end of the cartridge housing 123 is connected with the bottom plate 134, for example, in a clamping or fixing manner, the bottom plate 134 can prevent the tobacco tar from leaking out from the bottom of the cartridge housing 123, the bottom plate 134 is provided with an atomizer 132, the atomizer 132 is at least partially located in the cartridge housing 123, two connection pins of the atomizer 132 are provided on the bottom plate 134, and the two connection pins are electrically connected with the system circuit 131. The bottom plate 134 may be made of a plastic material or the like, or may be made of a resin material or the like.

In the present embodiment, the detection electrode 2210 is provided at the suction nozzle 122. The detection electrode 2210 is the same as the first embodiment, and will not be described again. In this embodiment, the cartridge 120 further includes a first electrical connector 126, where the first electrical connector 126 is electrically connected to the detection electrode 2210 through a first intermediate connector 127, and the first intermediate connector 127 is the same as the first embodiment, and is not described herein, in this embodiment, the first electrical connector 126 is similar to the first embodiment, and is different from the first embodiment in that the first electrical connector is a connection pin, the connection pin is welded to one end of the second intermediate connector 137, and the other end of the second intermediate connector 137 is connected to the proximity detection end, and in this embodiment, the second intermediate connector 137 is a wire or a lead.

In this embodiment, since the disposable electronic cigarette is the disposable electronic cigarette, the disposable electronic cigarette cannot charge the battery 2400, so that the battery 2400 can automatically enter the shipping mode in the interval time of transportation, storage and no smoking, because the tobacco tar of the disposable electronic cigarette is certain, when the battery 2400 consumes no electricity due to long-time transportation, storage or incorrect use, it is likely that the tobacco tar of the disposable electronic cigarette is more, and because the disposable electronic cigarette has no electricity, the battery 2400 cannot be charged at this time, and therefore the disposable electronic cigarette can only be discarded or recycled, resulting in waste. In this embodiment, when the disposable electronic cigarette is in the shipping mode during the time of the interval of transportation, storage or no smoking, the disposable electronic cigarette enters the shipping mode, the energy consumption of the battery 2400 is greatly reduced, the consumption of the disposable electronic cigarette battery 2400 is reduced, the probability that tobacco tar is still present is greatly reduced, the waste is reduced, and the misunderstanding of the user on the product quality of the enterprise is reduced.

Twelfth embodiment

Referring to fig. 28, fig. 28 is a block diagram of an electronic cigarette according to a twelfth embodiment of the present application, and the present embodiment is similar to the first to eleventh embodiments, so that a part not described in the present embodiment can refer to the previous embodiment, and the main difference between the present embodiment and the previous embodiment is that the suction nozzle 122 includes a first metal housing 228.

In order to improve the grade of the electronic cigarette, in the present embodiment, the suction nozzle 122 of the electronic cigarette includes a first metal housing 228, that is, the outer surface of the suction nozzle 122 is made of metal, and the portion (body portion) of the suction nozzle 122 inside the first metal housing 228 may be made of a non-metal material or a metal material, so that the user can see the first metal housing 228 from the outside, thereby improving the grade of the electronic cigarette.

When the suction nozzle 122 includes the first metal housing 228, the solution in which the detection electrode 2210 is embedded in the suction nozzle 122 or attached to the inner surface of the metal suction nozzle 122 is no longer applicable, and the first metal housing 228 shields the relevant signals. To overcome this problem, in the present embodiment, the first metal housing 228 is provided with a first opening, which is in an inverted U shape, an L shape, a long bar shape, a ring shape, a spiral shape, etc., and when in a ring shape, the first metal housing 228 is divided into two parts; in the case of the inverted U-shape, the L-shape, or the elongated shape, the portion having the relatively long opening extends in the direction of the central axis of the suction nozzle 122. In addition, in other embodiments of the present application, the first metal housing 228 may not be provided with a first opening, and the first metal housing 228 may be concave to form a groove, and the shape of the groove may be annular, U-shaped, L-shaped, elongated, etc. In this embodiment, the suction nozzle 122 further includes an unshielded first shielding part 229, the unshielded first shielding part 229 is located at the first opening or the groove, and the detection electrode 2210 is attached to the inner surface of the first shielding part 229. In addition, in other embodiments of the present application, the detection electrode 2210 is embedded within the first shielding part 229, i.e., the detection electrode 2210 is located between the inner surface and the outer surface of the first shielding part 229. In this embodiment, the first shielding portion 229 is made of a food-grade material.

In this embodiment, the first metal housing 228 is disposed on the outer surface of the suction nozzle 122, so as to improve the grade of the electronic cigarette, meanwhile, a first opening or a groove is disposed on the first metal housing 228, a non-shielding first shielding portion 229 is filled in the groove, and the detection electrode 2210 is located inside or on the inner side of the first shielding portion 229, so that when the lip contacts the suction nozzle 122, the change of the capacitance can be detected by the capacitance detection unit 2220, and the electronic cigarette can enter or exit the shipping mode.

Furthermore, in the present embodiment, the non-shielding first shielding portion 229 may be designed for decoration, for example, the first shielding portion 229 is made of a transparent material, and the detection electrode 2210 is also made of a transparent material, for example, ITO, so that the monotonicity of the first metal housing 228 of the suction nozzle 122 may be reduced, and the aesthetic feeling of the suction nozzle 122 may be improved.

Thirteenth embodiment

Referring to fig. 29, fig. 29 is a cross-sectional view of a tobacco rod according to a thirteenth embodiment of the present application, and the present embodiment is similar to the first to twelfth embodiments, so that a non-described portion of the present embodiment can refer to the previous embodiment, and the main difference between the present embodiment and the previous embodiment is that the detection electrode 2210 is located on the tobacco rod 110.

In this embodiment, the tobacco stem 110 may be a disposable tobacco stem 110, or may be a reusable tobacco stem 110. The stem 110 includes a stem housing 111, a battery 2400, a battery protection module 2100, a capacitance detection module 2200, a system circuit 131, and an airflow sensor 133. Wherein the stem housing 111 is hollow, and the battery 2400, the battery protection module 2100, the capacitance detection module 2200, and the system circuit 131 are all located within the stem housing 111. The battery protection module 2100 is electrically connected to the battery 2400, the battery protection module 2100 is electrically connected to the system circuit 131, the system circuit 131 is electrically connected to the airflow sensor 133 and the atomizer 132 in the cartridge 120, respectively, the battery protection module 2100 controls whether the battery 2400 supplies power to the system circuit 131, and the capacitance detection module 2200 is electrically connected to the battery protection module 2100.

In this embodiment, the tobacco rod housing 111 is a plastic housing, the detection electrode 2210 is mounted inside the outer surface of the tobacco rod housing 111, that is, the detection electrode 2210 is embedded in the tobacco rod housing 111 or the detection electrode 2210 is attached to the inner surface of the tobacco rod housing 111 or the detection electrode 2210 is located inside the tobacco rod housing 111, and the detection electrode 2210 is electrically connected to the capacitance detection end CJ. In the present embodiment, the detection electrode 2210 is embedded in the tobacco rod housing 111, and the detection electrode 2210 is in a long strip shape, and the detection electrode 2210 extends along the central axis direction of the tobacco rod 110, that is, along the length direction of the tobacco rod 110. In this embodiment, an opening is provided on the inner surface of the sidewall of the tobacco rod housing 111, the opening is disposed corresponding to the detection electrode 2210, one end of the second intermediate connecting member 137 passes through the opening to be electrically connected to the detection electrode 2210, and the other end is electrically connected to the capacitance detection end CJ.

In the present embodiment, the detection electrode 2210 extends from one end (lower end) of the stem 110 away from the cartridge 120 to the other end (upper end) of the stem 110, i.e., the length of the detection electrode 2210 is equal to or approximately equal to the length of the stem 110. In addition, in other embodiments of the present application, the length of the detection electrode 2210 is smaller than the length of the stem 110, and in general, when the user holds the stem 110, the user will generally hold the middle portion of the stem 110 or the lower portion of the stem 110, so that the detection electrode 2210 may not be disposed at one end (upper end) of the stem 110 near the cartridge 120, and the detection electrode 2210 extends from the lower end of the stem 110 to the middle portion of the stem 110, so that the electronic cigarette may not exit from the shipping mode when the user holds the stem 110. In this embodiment, the number of the detection electrodes 2210 may be one or more, when the number of the detection electrodes 2210 is plural, the detection electrodes 2210 are arranged in parallel and are electrically connected to the capacitance detection end CJ together, the detection electrodes 2210 are uniformly arranged along the circumferential direction of the tobacco rod 110, and the lengths of the detection electrodes 2210 are the same in the axial direction of the tobacco rod 110, so that the probability that the capacitance change is not triggered when the user holds the tobacco rod 110 can be reduced. In addition, in other embodiments of the present application, the number of the detection electrodes 2210 is plural, the plural detection electrodes 2210 are arranged along the central axis direction of the tobacco rod 110, preferably uniformly, and two adjacent detection electrodes 2210 shorter than the length of the tobacco rod 110 cover two ends of the tobacco rod 110, that is, one detection electrode 2210 extends from the lower end to the upper end of the tobacco rod 110, and the other adjacent detection electrode 2210 extends from the upper end to the lower end of the tobacco rod 110, so that the defect that the shorter detection electrode 2210 cannot completely cover the tobacco rod 110 can be overcome, and the probability that the capacitance change is not triggered when a user holds the tobacco rod 110 is further prevented; in addition, in the present embodiment, the length of the detection electrode 2210 is greater than or equal to half the length of the tobacco stem 110, so that two adjacent detection electrodes 2210 are partially overlapped at the middle position of the tobacco stem 110.

In addition, in other embodiments of the present application, the detection electrode 2210 is not limited to a long strip shape, and may have other shapes. For example, in other embodiments of the present application, the detection electrode 2210 extends along the central axis of the tobacco rod 110, the detection electrode 2210 is U-shaped, the detection electrode 2210 extends from a first side of the tobacco rod housing 111 to a second side of the tobacco rod housing 111, the first side and the second side being disposed opposite to each other; or the detection electrode 2210 is spiral, and the central axis of the detection electrode 2210 is parallel to or coincides with the central axis of the tobacco rod 110.

In this embodiment, the tobacco rod 110 is flat, and the tobacco rod 110 generally includes four sidewalls except for an upper end near the cartridge 120 and a lower end far from the cartridge 120, the four sidewalls being equal in length along the length direction of the tobacco rod 110, wherein two opposite sidewalls are wider, referred to as a third wide sidewall and a fourth wide sidewall, and the other two sidewalls are narrower in width, referred to as a third narrow sidewall and a fourth narrow sidewall. In this embodiment, the third wide side wall or/and the fourth wide side wall is provided with the detection electrode 2210, the third narrow side wall or/and the fourth narrow side wall is provided with the detection electrode 2210, the width of the detection electrode 2210 on the wide side wall is greater than or equal to the width of the detection electrode 2210 on the narrow side wall, and the width of the detection electrode 2210 in the middle of the wide side wall is the widest, which is a position easy to be touched by a user, and is easy to cause capacitance change. Generally, when the user holds the outer wall of the tobacco rod 110 with his hand, the user holds three sidewalls of the outer wall of the tobacco rod 110, and two narrow sidewalls and one wide sidewall are held at the same time, and it is preferable that the detection electrode 2210 is positioned inside or on the inner side or the inner surface of the third narrow sidewall and/or the fourth narrow sidewall because it is uncertain whether the third wide sidewall or the fourth wide sidewall is held.

In this embodiment, when the user holds the tobacco stem 110 with the hand, the one or more detection electrodes 2210 form a capacitance with the hand at this time, so that the capacitance detection unit 2220 can detect the total capacitance change, the capacitance detection unit 2220 sends a shipment exit signal to the battery protection module 2100, and the battery protection module 2100 exits from the shipment mode; when the user releases the cigarette stick 110, the capacitance detection unit 2220 may detect that the total capacitance is changed again, and the capacitance detection unit 2220 sends a shipping entry signal to the battery protection module 2100, and the battery protection module 2100 enters the shipping mode. The embodiment does not frequently enter and exit the shipping mode relative to the embodiment in which the detection electrode 2210 is located at the suction nozzle 122, and the power consumption is higher than the embodiment in which the detection electrode 2210 is located at the suction nozzle 122, but the power consumption is still low. The manner of the timer in the previous embodiment is not applicable in the present embodiment. The detection electrode 2210 of the embodiment is located in the tobacco stem, and the connection between the detection electrode 2210 and the capacitance detection module is relatively simple.

In the present embodiment, the detection electrode 2210 is located in the tobacco stem 110, the detection electrode 2210 is electrically connected to the capacitance detection module 2200, and whether the palm of the user touches the tobacco stem housing 111 is detected by the detection electrode 2210, so as to control the battery protection module 2100 to exit or enter the shipping mode. In addition, in other embodiments of the present application, the detection electrode 2210 and the capacitance detection module 2200 detect whether the palm of the user touches the tobacco stem housing 111, and may be further used to implement other functions of the electronic cigarette, such as counting the frequency of use of the electronic cigarette, counting the duration of use of the electronic cigarette, and waiting duration.

Fourteenth embodiment

Referring to fig. 30, fig. 30 is a cross-sectional view of a tobacco rod according to a fourteenth embodiment of the present application, and the present application is similar to the thirteenth embodiment, so that a non-described portion of the present application can refer to the previous embodiment, and the main difference between the present embodiment and the thirteenth embodiment is that the tobacco rod housing 111 is a metal housing.

Generally, the stem housing 111 of the electronic cigarette currently on the market is generally a metal housing, and the solution of embedding the detection electrode 2210 in the stem housing 111 or attaching to the inner surface of the stem housing 111 is no longer applicable. To overcome this problem, in the present embodiment, the tobacco rod housing 111 is provided with an opening, which is U-shaped, elongated, spiral, L-shaped, or the like. When the shape is U-shaped, L-shaped or elongated, the portion having the relatively long opening extends in the direction of the central axis of the stem housing 111; in the case of a spiral, the central axis of the spiral is the same as the central axis of the stem housing 111. In this embodiment, the tobacco rod 110 further includes an unshielded second shielding portion 219, the unshielded second shielding portion 219 is located at the opening, the second shielding portion 219 may be mounted on the tobacco rod housing 111 by clamping, bonding or other manners, and the detection electrode 2210 is embedded in the second shielding portion 219, that is, the detection electrode 2210 is located between the inner surface and the outer surface of the second shielding portion 219. In addition, in other embodiments of the present application, the detection electrode 2210 may be further attached to the inner surface of the second shielding part 219. In this embodiment, the second shielding portion 219 is made of plastic material, glass, or the like. In this embodiment, the inner surface of the second shielding portion 219 is provided with an opening, the opening is corresponding to the detection electrode 2210, one end of the second intermediate connecting member 137 passes through the opening to be electrically connected with the detection electrode 2210, the other end of the second intermediate connecting member 137 is electrically connected with the capacitance detection end CJ, or the detection electrode 2210 is attached to the inner surface of the tobacco rod housing 111 or is located inside the tobacco rod housing 111, and at this time, the detection electrode 2210 may be directly electrically connected with the capacitance detection end CJ through the second intermediate connecting member 137. The second intermediate connection 137 is, for example, a wire, a lead, or the like.

In this embodiment, the tobacco stem housing 111 is a metal housing, which is suitable for the existing electronic cigarette, and the tobacco stem housing 111 of the existing electronic cigarette does not need to be modified in a large area, and only needs to be modified slightly to realize the application.

Moreover, in this embodiment, the nonmetallic second shielding part 219 may be designed for decoration, so that monotonicity of the metal case of the tobacco rod 110 may be reduced, and aesthetic feeling of the tobacco rod 110 may be improved.

Fifteenth embodiment

Referring to fig. 31, fig. 31 is a circuit block diagram of an electronic device according to a fifteenth embodiment of the present application, and the present application is similar to the first to fourteenth embodiments, so that a non-described portion of the present application can refer to the previous embodiment, and the main difference between the present embodiment and the previous embodiment is how the electronic device exits the shipping mode when the proximity detection module 2800 and the proximity unit 2810 are damaged.

The electronic cigarette is in the shipping mode most of the time, when the proximity detection module 2800 or the proximity unit 2810 is damaged, at this time, even if the user's lips contact or approach the suction nozzle 122 or the user's hands contact or approach the tobacco stem 110, the proximity detection module 2800 will not send a shipping exit signal, at this time, the electronic cigarette will not exit the shipping mode. When a user sucks through the suction nozzle 122, since the first switching unit 2300 is turned off in the shipping mode, none of the system circuit 131, the airflow sensor 133, and the atomizer 132 is powered on, so that no smoke is generated, i.e., how the user sucks hard nor does the user generate smoke, and the user considers that the electronic cigarette is damaged, only the electronic cigarette can be forcibly discarded or the cartridge 120 is replaced, but for the disposable electronic cigarette, only the electronic cigarette can be discarded by the user because the cartridge 120 is not replaceable.

In order to solve the above-mentioned problem, in the present embodiment, referring to fig. 31, the system terminal VM (pin), the first shipment exit terminal QC1 (pin), the first shipment terminal QY1 (pin), the second shipment exit terminal QC2 (pin) or the second shipment terminal QY2 (pin) of the proximity detection module 2800 of the battery protection module 2100 is connected to one button switch 2700. Specifically, the system terminal VM (pin), the first shipment exit terminal QC1 (pin), the first shipment terminal QY1 (pin), the second shipment exit terminal QC2 (pin) or the second shipment terminal QY2 (pin) of the proximity detection module 2800 of the battery protection module 2100 is connected to one end of the push button switch 2700, and the other end of the push button switch 2700 is connected to a high level or a low level, which may be set according to a level required for the battery protection module to exit the shipment mode. When the button switch 2700 is pressed, both ends of the button switch 2700 are shorted, and when the button switch 2700 is not pressed, both ends of the button switch 2700 are disconnected. In this embodiment, the tobacco rod housing 111 is further provided with a fine hole, the fine hole is configured corresponding to a button or a key of the button switch 2700, when the proximity detection module 2800 or the proximity unit 2810 is damaged, a user can force to press the button switch 2700 by using a fine needle through the fine hole on the tobacco rod housing 111, two ends of the button switch 2700 are shorted, the battery protection module 2100 exits from the shipping mode, the electronic cigarette works in the normal working mode, when the user releases his hands, two ends of the button switch 2700 are disconnected, and the battery protection module 2100 will not receive a shipping signal due to the damage of the proximity detection module 2800 or the proximity unit 2810, so that the electronic cigarette still remains in the normal working mode, and the electronic cigarette can work normally. In addition, in other embodiments of the present application, the battery protection module 2100 may be further configured such that when the button switch 2700 is pressed to cause the battery protection module 2100 to exit the shipping mode, the battery protection module 2100 does not enter the shipping mode any more. Moreover, since the button switch 2700 is located within the stem housing 111, the button switch 2700 is not easily erroneously triggered.

In one implementation of the present embodiment, the first switch unit 2300 is disposed below, one end of the button switch 2700 is electrically connected to the system terminal VM, and the other end of the button switch 2700 is grounded, for example, to the negative electrode of the battery 2400 or the first power ground GND1, wherein the button switch 2700 is not located on the system on chip 2500. When the battery protection module 2100 is in the shipping mode, the system side VM is pulled high, and when the user presses the button switch 2700 through a small object such as a pin through the small hole, the system side VM is pulled low to ground, so that the battery protection module 2100 exits the shipping mode.

In addition, in another implementation manner of the present embodiment, the first switch unit 2300 is disposed, one end of the button switch 2700 is electrically connected to the system terminal VM, and the other end of the button switch 2700 is connected to a high level signal, for example, electrically connected to the positive electrode of the battery 2400 or the first power supply terminal VDD1, wherein the button switch 2700 is not located on the system on chip 2500. When the battery protection module 2100 is in the shipping mode, the system side VM is pulled low, and when the user presses the button switch 2700 through a fine object such as a fine needle through the fine hole, the system side VM is pulled high, so that the battery protection module 2100 exits the shipping mode.

In addition, in other embodiments of the present application, the shipping mode may be exited with reference to the above description when the touch detection module, the touch unit in the sixteenth embodiment, or when the position detection module, the position unit in the seventeenth embodiment, are damaged.

Sixteenth embodiment

Referring to fig. 32, fig. 32 is a circuit block diagram of an electronic device according to a sixteenth embodiment of the present application, and the present application is similar to the first to fifteenth embodiments, so that a non-described portion of the present application can refer to the previous embodiment, and the main difference between the present embodiment and the previous embodiment is that the battery protection circuit 3000 includes a touch detection module 3200.

In this embodiment, the battery protection module 2100 includes a touch detection module 3200, the electronic cigarette further includes a touch unit 3210, the touch detection module 3200 is, for example, a touch controller, the touch unit 3210 is, for example, a touch sensor, for example, a capacitive touch sensor, a resistive touch sensor, an infrared touch sensor, an ultrasonic touch sensor, etc., and the specific model and structure of the touch sensor are conventional in the art and are not described herein. In this embodiment, the touch detection module 3200 is electrically connected to the touch unit 3210 and the battery protection module 2100, respectively, and the touch unit 3210 is at least partially located in the suction nozzle 122, where the user cannot see the touch unit 3210 from the external surface of the electronic cigarette. In the present embodiment, the touch unit 3210 is embedded in the stem housing 111 or the suction nozzle 122, and the touch unit 3210 is not exposed. Preferably, the touch unit 3210 is a detection electrode 2210.

Those skilled in the art will recognize that proximity detection techniques generally include touch detection techniques, which are a special manifestation of proximity detection techniques. The manner in which touch detection is typically required requires that the user's body be in contact with the surface of the electronic device, e.g., the user's body be in contact with the exterior surface of the mouthpiece, the exterior surface of the tobacco stem.

In this embodiment, when the hand or lips of the user contact the outer surface of the tobacco stem 110 or the outer surface of the suction nozzle 122 corresponding to the touch unit 3210, the touch detection module 3200 obtains the touch information, the touch detection module 3200 sends a shipment exit signal to the battery protection module 2100, and after the battery protection module 2100 receives the shipment exit signal, the battery protection module 2100 exits from the shipment mode to enter into the normal operation mode. When the user's hand or lips leave the touch unit 3210 of the tobacco stem 110 or the suction nozzle 122, the touch detection module 3200 transmits a shipment entry signal to the battery protection module 2100, and the battery protection module 2100 enters a shipment mode. As in the previous embodiments, the electronic cigarette of the present embodiment may automatically enter the shipping mode at the first preset time or the second preset time after exiting the shipping mode. In addition, in other embodiments of the present application, at least part of the external surface of the suction nozzle or the external surface of the tobacco rod housing is the touch unit, and the touch unit is electrically connected with the touch detection unit.

The electronic cigarette of this embodiment is very low in the consumption of electronic cigarette when long-time transportation, storage or not using, can promote the live time of electronic cigarette, and battery 2400 can use very long time, and the user need not frequent charging has promoted user's convenience of use, does not influence the long-term use habit that forms moreover, is very friendly to the user.

Seventeenth embodiment

Referring to fig. 33, fig. 33 is a circuit block diagram of an electronic device according to a seventeenth embodiment of the present application, and the present application is similar to the first to fifteenth embodiments, so that a non-described portion of the present application can refer to the previous embodiment, and the main difference between the present embodiment and the previous embodiment is that the battery protection circuit 4000 does not include a proximity detection module.

In this embodiment, the battery protection circuit 2000 includes a position detection module 4200, where the position detection module 4200 is electrically connected to the battery protection module 2100, the position detection module 4200 is used for detecting whether the electronic cigarette is in a use state, for example, by detecting whether the electronic cigarette is moving, whether there is acceleration, whether there is speed, etc., and the position detection module 4200 is used for electrically connecting the position unit 4210, and in this embodiment, the position unit 4210 is located in the cigarette stem 110. In this embodiment, the location unit 4210 is, for example, an acceleration sensor, and it can be determined whether the electronic cigarette is taken up by the user for use. Common acceleration sensors include capacitive, inductive, strain, piezoresistive, piezoelectric, and the like. Because the acceleration sensor is positioned in the electronic cigarette, the external structure of the electronic cigarette is not changed at all, and the use habit of a user is met. In other embodiments of the present application, the location unit 4210 may be an inclination sensor, where the inclination sensor may detect whether the electronic cigarette is horizontally placed or has a certain inclination with the horizontal plane, or detect a change of the inclination, when the electronic cigarette is horizontally placed, the location detection module 4200 may consider that the electronic cigarette is in a non-use state, when the inclination is greater than or equal to 30 ° for example, the location detection module 4200 may consider that the electronic cigarette is in a use state, and determine whether the electronic cigarette is in a use state or a non-use state through the inclination sensor and the location detection module 4200, and when in the use state, the location detection module 4200 sends a shipment exit signal to the battery protection module 2100, and when in the non-use state, the location detection module 4200 sends a shipment entry signal to the battery protection module 2100. In addition, in other embodiments of the present application, the location unit 4210 may also be a gravity sensor, a displacement sensor, or a light sensor, etc., and the detection module 4200 may determine whether the electronic cigarette is in the use state or the non-use state through gravity change, displacement change, or light change. The position unit 4210 is not limited to the above-described sensor, and other conventional position units in the art can determine whether the electronic cigarette is in the use state or the non-use state, and are within the scope of the present application. In addition, the location unit 4210 may be a combination of a plurality of sensors or a plurality of sensors, so that the judgment can be more accurate. In the present embodiment, the position detection module 4200 includes a position detection unit, and a position detection terminal, where the position detection unit is electrically connected to the position detection terminal, and the position detection terminal is electrically connected to the position unit 4210, and the position detection unit is an operation processing unit corresponding to the position unit 4210, for example, an operation processing unit corresponding to the aforementioned acceleration sensor, tilt angle sensor, gravity sensor, displacement sensor, and light sensor.

In this embodiment, when the user picks up the electronic cigarette, the position detection module 4200 can determine that the position of the electronic cigarette has been changed through the change of the characteristics such as acceleration and speed, the position detection module 4200 sends the shipment exit signal to the battery protection module 2100, and the battery protection module 2100 exits the shipment mode to enter the normal operation mode after receiving the shipment exit signal. When the position detection module 4200 detects that the electronic cigarette has not changed in position for a relatively long period of time, for example, the position detection unit detects that the position has not changed within a third preset time, for example, 5-30 seconds, for example, 5 seconds, 10 seconds, 15 seconds, 20 seconds, 25 seconds, 30 seconds, etc., the position detection unit generates and transmits a shipping entry signal to the battery protection module 2100, and the battery protection module 2100 enters the shipping mode. Likewise, the electronic cigarette of this embodiment can enter or exit the shipping mode automatically, and the consumption of electronic cigarette is very low when long-time transportation, storage or not using, can promote the live time of electronic cigarette, and battery 2400 can use very long time, and the user need not frequent charging has promoted user's convenience of use, does not influence the long-term use habit that forms moreover, and is very friendly to the user.

Eighteenth embodiment

Referring to fig. 34, fig. 34 is a flowchart illustrating a control method of an electronic cigarette according to an eighteenth embodiment of the present application, and the present embodiment is similar to the first to seventeenth embodiments, so that a non-described portion of the present embodiment can refer to the previous embodiment, and a main difference between the present embodiment and the previous embodiment is that a control method of an electronic cigarette is provided.

The embodiment provides a control method of an electronic cigarette, which comprises the following steps:

s110: the electronic cigarette state detection module detects signals of electronic cigarette approaching distance change, touch state change or position change;

In this embodiment, the battery protection circuit includes an electronic cigarette state detection module, where the electronic cigarette state detection module includes a proximity detection module 2800, a touch detection module 3200, or a position detection module 4200, and the electronic cigarette further includes an electronic cigarette state detection unit, where the electronic cigarette state unit includes a proximity unit 2810, a touch unit 3210, or a position unit 4210, and the electronic cigarette state detection module and the electronic cigarette state unit can detect whether the electronic cigarette is approaching, touched, or the position of the electronic cigarette itself is changed, so as to confirm whether the electronic cigarette is to be in a use state, and if the electronic cigarette is to be in the use state, the electronic cigarette detection module generates a shipping exit signal.

S120, the electronic cigarette state detection module generates a shipping control signal;

S130, the battery protection module 2100 receives a shipping control signal;

S140 of entering a shipping mode or exiting a shipping mode, wherein the first switching unit 2300 is turned off to stop the power supply of the battery 2400 to the system circuit 131.

In the present embodiment, in the shipping mode, at least part of the units of the battery protection module 2100 do not consume power, and preferably, the battery protection module 2100 does not consume power as a whole, i.e., is in the 0-consumption mode. The state detection module is in a normal operating mode in the shipping mode.

In this embodiment, the control method of the electronic cigarette further includes:

And the electronic cigarette state detection module enters a 0 power consumption mode after exiting the shipping mode.

Therefore, after the battery protection module 2100 exits from shipping, the electronic cigarette state detection module is in a normal working mode, and the electronic cigarette state detection module is in a 0 power consumption mode, i.e. the electronic cigarette state detection module consumes little power, so that the energy consumption of the electronic cigarette can be further reduced, and the service life of the electronic cigarette is prolonged.

receiving a signal to force exiting the shipping mode;

and exiting the shipping mode.

In this embodiment, when the electronic cigarette state detection module and the state unit are damaged, the battery protection module 2100 is previously in the shipping mode and cannot wake up, in this embodiment, the battery protection module 2100 is caused to exit the shipping mode by receiving a signal of forcedly exiting the shipping mode, so that the battery protection module 2100 is in the normal operation mode, and the electronic cigarette can normally operate thereafter.

The step S110 specifically includes: a signal of an increase or decrease in capacitance is detected.

In this embodiment, the electronic cigarette state detection unit is a capacitance detection unit 2220, and the electronic cigarette state unit is a detection electrode 2210.

The step S120 specifically includes:

Generating a shipping exit signal;

and receiving a shipping exit signal and entering a shipping mode after a first preset time or a second preset time, wherein the range of the first preset time and the second preset time is 2 seconds to 30 seconds.

The embodiment also provides an electronic cigarette, the electronic cigarette comprises a battery protection circuit and a battery, the battery protection circuit comprises a battery protection module, a first switch unit and a system circuit, the battery protection module comprises an overdischarge voltage protection unit, a discharge overcurrent protection unit, a reference voltage generation unit and a logic control unit, the battery protection module is electrically connected with two ends of the battery, the logic control unit is electrically connected with the first switch unit to be used for controlling the on or off of the first switch unit, and the first switch unit is used for controlling the battery to supply power to the system circuit; the battery protection module further comprises an electronic cigarette state detection module and an electronic cigarette state unit, wherein the electronic cigarette state detection module is electrically connected with the electronic cigarette state unit and the battery protection module respectively; the battery protection circuit also comprises a processor and a memory which are mutually coupled, wherein the processor is used for executing program instructions stored in the memory so as to realize the control method of the electronic cigarette.

It should be understood that references herein to "a plurality" are to two or more. Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of the application following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the application pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims.

It should be noted that, in the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different manner from other embodiments, and identical and similar parts between the embodiments are referred to each other. For the device embodiments, since they are substantially similar to the method embodiments, the description is relatively simple, and reference is made to the description of the method embodiments for relevant points.

The foregoing disclosure is illustrative of the present application and is not to be construed as limiting the scope of the application, which is defined by the appended claims.

Claims

1. The battery protection circuit is applied to an electronic cigarette and is characterized by comprising a battery protection module and a first switch unit, wherein the battery protection module comprises a first power supply end, a first power supply grounding end, an overdischarge voltage protection unit, a discharge overcurrent protection unit, a reference voltage generation unit and a logic control unit, the first power supply end and the first power supply grounding end are respectively used for being electrically connected with a battery, the logic control unit is electrically connected with the first switch unit and used for controlling the first switch unit to be turned on or turned off, the first switch unit is used for controlling the battery to supply power to a system circuit, and the system circuit is used for connecting an airflow sensor and an atomizer;

The battery protection circuit further comprises a proximity detection module, the proximity detection module is respectively connected with the positive electrode of the battery and the negative electrode of the battery, the proximity detection module is used for being electrically connected with the proximity unit, the proximity detection module is further electrically connected with the battery protection module, the battery protection module is provided with a shipping mode, the first switch unit is disconnected in the shipping mode, the battery protection module is in a 0 power consumption mode, the proximity detection module is in a normal working mode when the battery protection module is in the shipping mode, the proximity detection module is used for enabling the battery protection module to exit the shipping mode, after exiting the shipping mode, the system circuit is normally powered, and the system circuit is used for controlling the atomizer to work when detecting the change of an electric signal in the airflow sensor.

2. The battery protection circuit of claim 1, wherein at least a portion of the cells of the proximity detection module do not consume power when the battery protection module exits the shipping mode.

3. The battery protection circuit according to claim 2, wherein when the proximity detection module generates a shipment exit signal according to a change in the proximity distance and outputs the shipment exit signal to the battery protection module, the battery protection module exits the shipment mode and the battery protection module or the proximity detection module controls at least a part of the units of the proximity detection module not to consume power, and when the battery protection module enters the shipment mode, the battery protection module controls the proximity detection module to enter a normal operation mode.

4. The battery protection circuit of claim 3, wherein the battery protection module comprises a second timing unit and a first shipment exit terminal, the proximity detection module comprises a second shipment exit terminal, the first shipment exit terminal is electrically connected with the second shipment exit terminal and the second timing unit, respectively, when the proximity detection module generates a shipment exit signal according to a change of a proximity distance and outputs the shipment exit signal to the first shipment exit terminal via the second shipment exit terminal, the battery protection module exits from a shipment mode, and the second timing unit generates a shipment entry signal and a wake-up signal after a second preset time, the shipment entry signal is used for enabling the power management module to enter into a shipment mode, and the wake-up signal is used for enabling the proximity detection module to enter into a normal operation mode.

5. The battery protection circuit of claim 4, wherein the battery protection module comprises a first energy consumption terminal electrically connected to the second timing unit, the wake-up signal being output to the proximity detection module via the first energy consumption terminal; or alternatively

6. The battery protection circuit of claim 2, wherein the proximity detection module comprises a first timing unit, a proximity detection unit, a second shipment exit end, and a second shipment entry end, the proximity detection unit being configured to be electrically connected to the proximity unit, the first timing unit and the second shipment exit end being respectively electrically connected to the proximity detection unit, the second shipment entry end being electrically connected to the first timing unit;

7. The battery protection circuit of any one of claims 2-6, wherein the proximity detection module is in a 0-power consumption mode when the battery protection module exits the shipping mode.

8. The battery protection circuit of any one of claims 1-6, wherein the proximity detection module is a capacitive detection module and the proximity unit is a detection electrode.

9. The battery protection circuit of any one of claims 1-6, wherein the battery protection module and the proximity detection module are located on the same chip, the first power supply terminal is a power supply pin, the first power ground terminal is a power ground pin, the proximity detection module further comprises a proximity detection pin, the proximity detection pin is electrically connected to the proximity detection unit, and the proximity detection pin is used for being electrically connected to the proximity unit; the proximity detection module is also electrically connected with the power supply pin and the power ground pin, and the first switch unit is positioned on the chip or outside the chip; or alternatively

10. A battery assembly comprising a battery and a battery protection circuit according to any one of claims 1-9, wherein the first power supply terminal and the first power ground terminal are electrically connected to the battery, respectively, and the first switching unit is configured to control the battery to supply power to the system circuit.

11. An electronic cigarette comprising a system circuit, a nebulizer and the battery assembly of claim 10, the second end of the first switch unit being electrically connected to the system circuit, the system circuit being electrically connected to the nebulizer.