CN114668178A - Battery protection chip, battery pack and electronic device - Google Patents
Battery protection chip, battery pack and electronic device Download PDFInfo
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- CN114668178A CN114668178A CN202111651734.2A CN202111651734A CN114668178A CN 114668178 A CN114668178 A CN 114668178A CN 202111651734 A CN202111651734 A CN 202111651734A CN 114668178 A CN114668178 A CN 114668178A
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Classifications
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- A—HUMAN NECESSITIES
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- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/50—Control or monitoring
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/50—Control or monitoring
- A24F40/53—Monitoring, e.g. fault detection
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The application provides a battery protection chip, which comprises a battery protection module and a first switch unit, wherein the battery protection module comprises a power supply pin, a power grounding pin, an over-discharge voltage protection unit, a discharge over-current protection unit, a logic control unit and a system pin, the battery protection chip also comprises a capacitance detection module, the capacitance detection module is respectively electrically connected with the power supply pin and the power grounding pin, the capacitance detection module comprises a capacitance detection unit and a capacitance detection pin, the capacitance detection unit is electrically connected with the capacitance detection pin, the capacitance detection pin is used for electrically connecting a detection electrode, the capacitance detection module is also electrically connected with the battery protection module, when the capacitance detection unit detects the change of capacitance, the capacitance detection module sends a shipping control signal to the battery protection module, the battery protection module enters or exits a shipping mode, and the first switch unit is switched off in the shipping mode to enable the battery to stop supplying power to the system circuit. The application also provides a battery pack and an electronic device.
Description
Technical Field
The application relates to the technical field of batteries, in particular to a battery protection chip, a battery pack and an electronic device.
Background
The existing electronic cigarette generally comprises a cigarette rod and a cigarette cartridge with an atomizer, wherein cigarette oil is stored in the cigarette cartridge, and the atomizer atomizes the cigarette oil when working; the inside battery, system circuit and the air current sensor (for example miaow head) that is equipped with of tobacco rod, the battery is connected with the system circuit electricity, and the system circuit is connected with atomizer, air current sensor electricity respectively, and when the air current sensor detected the air current that leads to because the user smoking and flowed, the system circuit judged that the user had the smoking action, and the output of system circuit control atomizer, atomizer heating atomizing tobacco tar realizes going out the cigarette.
The inventor of the present application finds that, no matter the conventional electronic cigarette or the disposable electronic cigarette is used, the battery always needs to supply power to the system circuit, the system circuit always supplies power to the airflow sensor, and the internal circuits such as the system circuit and the airflow sensor continuously consume the electric quantity of the battery. However, the electric quantity of the battery is certain, when the electronic cigarette with the preset electric quantity battery is manufactured in a production place, the electronic cigarette can be transported (for example, shipped) for a long time and stored, and is finally sold to an end user, when the end user takes out a brand-new electronic cigarette for the first time for use, because the electronic cigarette is transported and stored for a long time, the battery may be consumed up or consumed a lot due to consumption of internal circuits of the electronic cigarette, so that the end user cannot directly take up the electronic cigarette for use or the electronic cigarette is used for a short time without power, and because the smoking has certain urgency and persistence, the experience of the user using the electronic cigarette is poorer than that of a traditional cigarette. Moreover, the existing electronic cigarette has single function.
Disclosure of Invention
An embodiment of the present disclosure provides a battery protection chip, a battery pack and an electronic device. The electric quantity consumption of the battery in the transportation and storage processes can be reduced, the electric quantity retention time of the battery is prolonged, and the user experience is improved.
In order to solve the above technical problem, a first aspect of the embodiments of the present application provides a battery protection chip, including a battery protection module and a first switch unit, where the battery protection module includes a power supply pin, a power ground pin, an over-discharge voltage protection unit, a discharge over-current protection unit, a reference voltage generation unit, a logic control unit, and a system pin, where the power supply pin and the power ground pin are used to be electrically connected to a battery, a first end of the first switch unit is electrically connected to the power supply pin or the power ground pin, a second end of the first switch unit is electrically connected to the system pin, a control end of the first switch unit is electrically connected to the logic control unit, and the system pin is used to be electrically connected to a system circuit;
the battery protection chip further comprises a capacitance detection module, the capacitance detection module is respectively electrically connected with the power supply pin and the power grounding pin, the capacitance detection module comprises a capacitance detection unit and a capacitance detection pin, the capacitance detection unit is electrically connected with the capacitance detection pin, the capacitance detection pin is used for electrically connecting a detection electrode, the capacitance detection module is further electrically connected with the battery protection module, when the capacitance detection unit detects that capacitance changes, the capacitance detection module sends shipping control signals to the battery protection module, the battery protection module enters or exits a shipping mode, and in the shipping mode, the first switch unit is disconnected to enable the battery to stop supplying power to a system circuit.
Optionally, the battery protection module includes a first shipping entrance end, the capacitance detection module further includes a second shipping entrance end and a second shipping exit end, the second shipping entrance end is electrically connected to the first shipping entrance end, the second shipping exit end is electrically connected to the system pin, the capacitance detection module generates a shipping entrance signal and a shipping exit signal, the shipping entrance signal is output to the first shipping entrance end via the second shipping entrance end, and the battery protection module enters a shipping mode; the shipping exit signal is output to the system pin via the second shipping exit terminal, and the battery protection module exits the shipping mode.
Optionally, the battery protection module includes a first shipping entrance end and a first shipping exit end, the capacitance detection module includes a second shipping entrance end and a second shipping exit end, the second shipping entrance end is electrically connected to the first shipping entrance end, the second shipping exit end is electrically connected to the first shipping exit end, the capacitance detection module generates a shipping entrance signal and a shipping exit signal, the shipping entrance signal is output to the first shipping entrance end via the second shipping entrance end, and the battery protection module enters a shipping mode; the shipping exit signal is output to the first shipping exit end via the second shipping exit end, and the battery protection module exits the shipping mode.
Optionally, the capacitor detection unit generates the ship exit signal according to a change in capacitance, the capacitor detection unit sends the ship exit signal to the first ship exit end or the system pin via the second ship exit end, the capacitor detection module generates a ship entry signal after a first preset time, and the capacitor detection module sends the ship entry signal to the first ship entry end via the second ship entry end.
Optionally, the battery protection module includes that first shipping exits the end, the electric capacity detection module includes that the second shipping exits the end, the second shipping exits the end with the electric capacity detection unit electricity is connected, the second shipping exits the end still with first shipping exits the end electricity and is connected, electric capacity detection unit produces the shipping and exits the signal according to the electric capacity change, the shipping exits the signal via the second shipping exits the end output and gives first shipping exits the end, the battery protection module exits the shipping mode just the battery protection module produces the shipping entering signal through the second preset time, the battery protection module gets into the shipping mode.
Optionally, the battery protection module includes a first shipping end, the capacitance detection module includes a second shipping end, the second shipping end is electrically connected to the capacitance detection unit, the second shipping end is further electrically connected to the first shipping end, the capacitance detection unit generates a shipping entry signal and a shipping exit signal according to a change in capacitance, the shipping entry signal and the shipping exit signal are output to the first shipping end via the second shipping end, and the battery protection module enters a shipping mode or exits the shipping mode.
Optionally, the capacitor detection unit is electrically connected to the battery protection module, and when the capacitor detection unit detects that the capacitance is greater than the first threshold, the capacitor detection unit sends a shipping quit signal to the battery protection module, and the battery protection module quits the shipping mode.
Optionally, the capacitance detection module further comprises a first timing unit, the first timing unit is electrically connected with the capacitance detection unit, the first timing unit is further electrically connected with the battery protection module, when the capacitance detection unit sends a shipping exit signal to the battery protection module, the battery protection module exits from the shipping mode, the first timing unit receives the shipping exit signal and outputs a shipping entry signal to the battery protection module after a first preset time, and the battery protection module enters into the shipping mode.
Optionally, the battery protection module includes a second timing unit, and when the capacitance detection unit sends a shipping exit signal to the battery protection module, the battery protection module exits the shipping mode, and after a second preset time, the second timing unit generates a shipping entry signal and outputs the shipping entry signal to the battery protection module, and the battery protection module enters the shipping mode.
Optionally, the capacitance detection unit is electrically connected to the battery protection module, and when the capacitance detection unit detects that the capacitance is smaller than the first threshold, the capacitance detection unit sends a shipping entry signal to the battery protection module, and the battery protection module enters a shipping mode.
Optionally, the logic control unit includes a sleep logic subunit, two input ends of the sleep logic subunit are respectively electrically connected to the system pin and the output end of the over-discharge voltage protection unit, the sleep logic subunit further receives a ship exit signal or a ship entry signal, and when the sleep logic subunit receives the ship exit signal, the sleep logic subunit controls the battery protection module to exit the ship mode, and/or when the sleep logic subunit receives the ship entry signal, the sleep logic subunit controls the battery protection module to enter the ship mode.
Optionally, the capacitance detection pin is further configured to be electrically connected to at least one reference capacitor.
Optionally, in the shipping mode, the capacitance detection module is in a normal operation mode.
Optionally, in a shipping mode, at least some units of the battery protection module consume no power and the capacitance detection module is in a normal operating mode, and when the battery protection module is in the normal operating mode, at least some units of the capacitance detection module consume no power; or,
In the shipping mode, the battery protection module is in a 0 power consumption mode, the capacitance detection module is in a normal working mode, and when the battery protection module is in the normal working mode, the capacitance detection module is in the 0 power consumption mode.
A second aspect of the embodiments of the present application provides a battery pack, including a battery and the above battery protection chip, the power supply pin and the power ground pin are respectively electrically connected to the battery.
Optionally, the battery pack includes a second resistor, a first resistor, and a third switch unit, wherein, one end of the second resistor is electrically connected with the positive electrode of the battery, the other end of the second resistor is electrically connected with the power supply pin, one end of the first resistor is electrically connected with the power supply pin, the other end of the first resistor is electrically connected with one end of the third switch unit, the other end of the third switch unit is electrically connected with the power ground pin, the control end of the third switch unit is electrically connected with the capacitance detection module, and when the third switch unit is turned on, the battery protection module enters a shipping mode.
Optionally, after the capacitance detection module detects that the battery protection module enters the shipping mode, the capacitance detection module controls the third switch unit to be turned off.
Optionally, the battery pack further includes a printed circuit board, the battery protection chip is located on the printed circuit board, and the printed circuit board is bound to the battery.
Optionally, the battery pack further includes a button switch, one end of the button switch is connected to a low level or a high level, the other end of the button switch is electrically connected to the battery protection module of the battery protection chip, and when the button switch is triggered, the battery protection module exits the shipping mode.
A third aspect of the embodiments of the present application provides an electronic device, which includes a system circuit and the battery pack described above, wherein the system pin is electrically connected to the system circuit.
Optionally, the electronic device is an electronic cigarette, the electronic cigarette includes a cigarette rod and a cartridge, the cartridge is connected to the cigarette rod, the cartridge includes an atomizer, the cigarette rod includes an airflow sensor, the airflow sensor and the atomizer respectively with the system circuit electricity is connected.
Optionally, the cigarette cartridge includes a suction nozzle and a detection electrode, the detection electrode is disposed in the suction nozzle, and the detection electrode is electrically connected to the capacitance detection pin; and/or the presence of a gas in the gas,
The tobacco rod comprises a hollow tobacco rod shell, pores are arranged on the tobacco rod shell, the battery component comprises a button switch, the button switch is located in the tobacco rod shell, and the pores correspond to the buttons or the keys of the button switch.
The embodiment of the application has the following beneficial effects:
1. because the capacitance detection module and the detection electrode are additionally arranged in the electronic device, the capacitance detection module and the detection electrode are not exposed on the surface of the electronic device, and the appearance of the electronic device is not required to be changed due to the additionally arranged capacitance detection mode, so that the appearance feeling of a user on the electronic device for a long time is met, and the electronic device is easily accepted by the user;
2. the electronic device can enter or exit the shipping mode through the change of the capacitance detected by the capacitance detection module, thereby, when the electronic device is transported for a long time and stored or is not used by a user, the electronic device can automatically enter the shipping mode, the additional operation of a transporter, a warehouse operator or a user is not needed to be added, the upper computer is not needed to be matched, the additional operation burden can not be increased, the matching of additional equipment is not needed, and the cost is reduced. The battery stops to supply power to system circuit in shipping mode, system circuit, the air current sensor, the atomizer, the great components and parts of power consumption such as charge management circuit, the circuit can not consume the electric energy yet, be favorable to reducing electron device's consumption, it is long when can increasing electron device's use, even electron device transports for a long time, the storage is perhaps placed, electron device also has more sufficient electric energy, user just can not appear when perhaps using in the market the circumstances of no electricity, user's use experience has been promoted. Moreover, the user does not need to wake up the electronic device through additional steps. Therefore, the energy consumption of the electronic device can be reduced, the use habit formed by a user for a long time 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;
3. The electronic device exits the shipping mode when the lips of the user contact the suction nozzle, and the power consumption of the electronic device can be greatly reduced by electrifying the electronic device at the first preset time after the lips of the user leave the suction nozzle or contact the suction nozzle, especially the gap time of the electronic cigarette between two cigarettes of the user, and the electronic device is also in the shipping mode, so that the power consumption of the electronic device can be reduced to the utmost extent 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 to charge frequently, and the use convenience of the user is improved;
4. the capacitance detection module is always powered by the battery, the power consumption of the capacitance detection module is very low, the cost is very low, the standby time of the electronic device cannot be reduced, and the cost of the electronic device cannot be increased;
5. when the electronic device is transported, stored or not used by a user, the first switch unit can be automatically switched off, so that the electronic device is in a shipping mode, and the problem that the electronic device is mistakenly triggered to work can be solved;
6. 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, circuits such as a system circuit, an airflow sensor and the like are not powered, and even if the electronic device is in an abnormal state such as a short circuit, the safety problem cannot exist.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is an exploded view of an electronic device according to an embodiment of the present application;
FIG. 2 is a block diagram of an electronic device according to an embodiment of the present application;
fig. 3 is a circuit block diagram of a similar battery protection module according to one embodiment of the present application;
FIG. 4 is a circuit block diagram of an electronic device according to another embodiment of the present 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 block diagram of a portion of a capacitive sensing module according to a first embodiment of the present application;
figure 10 is a perspective view of a cartridge according to a first embodiment of the present application;
Figure 11 is a cross-sectional view of a cartridge according to the first embodiment of the present application;
figure 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 block diagram of the circuit of the sleep logic subcell, the over-voltage protection cell, and the switch logic subcell according to an embodiment of the present application;
FIG. 18 is a block diagram of the circuit of the sleep logic subcell, the over-voltage protection cell, and the switch logic subcell of 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 apparatus according to a seventh embodiment of the present application;
fig. 23 is a circuit block diagram of an electronic apparatus 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 present application;
Fig. 25 is a circuit block diagram of an electronic apparatus 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 according to an eleventh embodiment of the present application;
figure 28 is a cross-sectional view of a cartridge according to a twelfth embodiment of the present application;
figure 29 is a cross-sectional view of a tobacco rod according to a thirteenth embodiment of the present application;
figure 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 apparatus 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 present application;
fig. 34 is a flowchart of a method for controlling an electronic cigarette according to an eighteenth embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The terms "comprising" and "having," and any variations thereof, as appearing in the specification, claims, and drawings of the present application, are intended to cover non-exclusive inclusions. 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 elements but may alternatively include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus. Furthermore, the terms "first," "second," and "third," etc. are used to distinguish between different objects and are not used to describe a particular order. The electrical connection of the present application includes direct electrical connection and indirect electrical connection, and the indirect electrical connection means that other electronic components, pins, and the like may also exist between two electrically connected components. The terminal XX referred to in this application may or may not be an actual terminal, such as only one terminal of a component or one terminal of a wire. Three cases are mentioned and/or included in the present application, for example, a and/or B, including A, B, A and B.
The present application provides an electronic device, such as an electronic cigarette, and the following description will be given taking the electronic device 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 a 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 (to be 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 electric quantity of the battery is used up, the electronic cigarette is not provided with a charging interface, a cigarette cartridge of the disposable electronic cigarette cannot be replaced, namely the disposable electronic cigarette cannot be used any more when one of the battery and the tobacco tar is used up.
Referring to fig. 1, in the present application, an electronic cigarette 100 includes a tobacco rod 110 and a cartridge 120, and the cartridge 120 is connected to the tobacco rod 110. In an embodiment of the present application, the cartridge 120 may be a replaceable cartridge, that is, the cartridge 120 may be detached from the cigarette rod 110 and replaced with a new cartridge 120, the cigarette rod 110 may be reused, and a charging interface for charging the battery may be provided on the cigarette rod 110. In another embodiment of the present application, the cartridge 120 may also be a non-replaceable cartridge, that is, the cartridge 120 cannot be removed from the stem 110 for replacement, and at this time, the stem 110 does not have a charging interface for charging the battery.
In the present application, the smoke rod 110 includes a smoke rod 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 cigarette rod casing 111 is hollow, and the battery assembly and the system circuit 131 are positioned in the cigarette rod casing 111. In the present application, the battery 2400 is a rechargeable battery 2400 such as a lithium battery, and may also be a non-rechargeable battery, and the capacity of the battery 2400 is generally 100mAh to 2000mAh, for example, 100mAh, 200mAh, 300mAh, 400mAh, 500mAh, 600mAh, 700mAh, 800mAh, 900mAh, 1000mAh, 1100mAh, 1200mAh, 1300mAh, 1400mAh, 1500mAh, 1600mAh, 1700mAh, 1800mAh, 1900mAh, 2000mAh, and the like, and is preferably 300mAh to 800 mAh. The number of the batteries 2400 is one or more, and when the number of the batteries 2400 is plural, the plurality of batteries 2400 may be connected in parallel or in series or mixed in series and parallel, and the electronic cigarette may be provided according to actual needs. When the electronic cigarette 100 is a common electronic cigarette, the cigarette rod housing 111 is further provided with a charging interface, the cigarette rod 110 further includes a charging management circuit, the charging management circuit is located in the cigarette rod housing 111, the charging management circuit is electrically connected with the charging interface, the charging management circuit is connected with the rechargeable battery through the battery protection module 2100, the charging management circuit is used for providing charging voltage and charging current according with a charging curve of the rechargeable battery, and the charging management circuit generally includes a charging management chip and a peripheral circuit thereof. When the electronic cigarette 100 is a disposable electronic cigarette, the cigarette rod housing 111 is not provided with a charging interface, and the cigarette rod 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, a second resistor R2 and a first capacitor C1 are further disposed between the battery 2400 and the battery protection module 2100, and the second resistor R2 and the first capacitor C1 are used for voltage stabilizing and filtering. 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, or 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 smoke flow and the airflow magnitude exist and controls whether the atomizer 132 operates and the power magnitude according to a change in an electrical signal (for example, a voltage signal) of the airflow sensor 133 triggered by the airflow flow during smoking. In the present application, the system circuit 131 includes a Micro Control Unit (MCU) or the like, and the airflow sensor 133 is, for example, a microphone or a MEMS or the like. Generally speaking, 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 like a traditional cigarette, a user can use the electronic cigarette by taking the electronic cigarette, additional operation is not needed, the electronic cigarette more conforms to the use habit of the user, and the user can be prompted to quickly convert the traditional cigarette user into the electronic cigarette.
In this application, referring to fig. 1 and 2 in combination, the cartridge 120 includes a mouthpiece 122, a cartridge body 121, an atomizer 132, and tobacco tar. Wherein, one end (lower end) of the cartridge body 121 is connected with the cigarette rod 110, and the other end (upper end) of the cartridge body 121 is connected with the suction nozzle 122. The cartridge body 121 is hollow, the atomizer 132 and the tobacco tar are arranged inside the cartridge body, the atomizer 132 is electrically connected with the system circuit 131 in the tobacco rod 110, and the system circuit 131 controls whether the atomizer 132 works and the power, so as to control the size of the smoke. The amount of tobacco tar is also provided in the cartridge body 121, and the amount of tobacco tar in each cartridge 120 is constant, although the amount of tobacco tar may vary from one e-cigarette to another, e.g. between 0.3ml and 5ml, such as 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, prevent the battery 2400 from being damaged under the conditions of over-discharge voltage, over-discharge current, over-temperature, and the like, and prevent the battery 2400 itself from being damaged. In this application, the battery protection module 2100 includes a first power supply terminal VDD1, a first power 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, where the first power supply terminal VDD1 and the first power 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, but may have other functions.
In the present application, the reference voltage generating unit provides reference voltages for the over-discharge voltage protection unit 2140, the discharge over-current protection unit, and the like, thereby determining whether the battery 2400 is in an over-discharge voltage state, a discharge over-current state, a short-circuit state, and the like.
The overdischarge voltage protection unit 2140 is configured to protect the battery 2400 when it is detected that the voltage of the battery 2400 is lower than the reference voltage provided by the reference voltage generation unit during discharging of the battery 2400, for example, control the battery 2400 to perform only a minimum discharge, and generally stop supplying power to the system circuit 131, so as to prevent the battery 2400 from being permanently damaged due to over-discharge.
The discharge overcurrent protection unit is used for protecting the battery 2400 and the system circuit 131 when detecting that the discharge current is too large in the discharge process of the battery 2400, for example, the battery 2400 stops discharging, and the like, so as to prevent the battery 2400 and the system circuit 131 from being permanently damaged or causing a safety problem due to the fact that the discharge current is too large.
The logic control unit 2110 is used for controlling the operating state and control logic of each module of the battery protection module 2100, and controlling whether the battery 2400 discharges outwards, and the logic control unit 2110 may control the entire battery protection module 2100 to be in a 0 power consumption mode, that is, the entire logic control unit 2110 consumes almost no power.
The overcharge voltage protection unit is used by a user to protect the battery 2400 when the voltage of the battery 2400 is detected to be higher than the reference voltage provided by the reference voltage generation unit during the charging process of the battery 2400, so as to prevent the battery 2400 from being charged again after being fully charged and prevent the battery 2400 from being damaged.
The charging overcurrent detection unit is used for protecting the battery 2400 when detecting that the charging current is too large in the charging process of the battery 2400, for example, the battery 2400 stops charging the battery 2400, so as to prevent the battery 2400 from being permanently damaged or having a safety problem due to the too large charging current.
In this application, when the electronic cigarette is a common electronic cigarette, that is, the electronic cigarette has a charging interface, at this time, the battery protection module 2100 includes the 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, a charging overcurrent protection unit, and the like, but generally, the battery protection module 2100 is a general module, and may also have an overcharge voltage protection unit and a charging overcurrent protection unit.
In the present application, the battery protection circuit 2000 further includes a first switch unit 2300, and the connection manner of the first switch unit 2300 and the battery protection module 2100 is generally as follows, but it is within the scope of the present application that a person skilled in the art may simply modify the circuit described below as necessary.
1. Referring to fig. 2, the battery protection module 2100 includes a switch control terminal CO/DO electrically connected to the logic control unit 2110, a 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), a first terminal of the first switch unit 2300 is electrically connected to a negative terminal of the battery 2400 (the first switch unit 2300 is down), the negative terminal of the battery 2400 is grounded, and a 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 turn on or off through the switch control terminal CO/DO, so that when the logic control unit 2110 controls the first switch unit 2300 to turn on or off, the battery 2400 may supply power to the system circuit 131 through the first switch unit 2300 at this time, the system circuit 131 is in a normal operation mode, and the electronic cigarette may normally operate; 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 (no consideration is given to leakage current), and further the air flow sensor 133 and the atomizer 132 cannot be supplied with power, so that the system circuit 131, the air flow sensor 133 and the atomizer 132 do not consume power, and the electronic cigarette cannot normally operate. 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 located on the same system on chip (the first switch unit may be located on another system on chip, or may not be located on the system on chip), where the system on chip and the chip are the same, the system on chip may not include a processor, a memory, and the like, but only include some comparators, a logic control unit, and the like, and of course, the system on chip may also include a processor, a memory, and the like. Of course, in other embodiments of the present application, the battery protection module 2100 may not be implemented on a system on a chip, and may be designed according to the needs of a user. In the present application, the 0 power consumption pattern means that the electric energy of battery 2400 is not consumed in an ideal case, a certain leakage current exists in an actual case, and the power consumption not indicated by the 0 power consumption pattern is actually 0, and means that the power consumption is close to 0.
2. Referring to fig. 4, the first switch unit 2300 is disposed in the battery protection module 2100 (the first switch unit 2300 is disposed in the same soc as the battery protection module 2100), the control terminal of the first switch unit 2300 is electrically connected to the logic control unit 2110, the first terminal of the first switch unit 2300 is electrically connected to the first power ground GND1, the first power ground GND1 is electrically connected to the negative electrode of the battery 2400 (the first switch unit 2300 is disposed below), the second terminal of the first switch unit 2300 is electrically connected to the system terminal VM of the battery protection module 2100, and the system terminal 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 off, so that when the logic control unit 2110 controls the first switch unit 2300 to be turned on and off, 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 operating mode, when the logic control unit 2110 controls the first switch unit 2300 to be turned off and 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 airflow 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 the 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, the system on chip may not include a processor, a memory, and the like, but only include some comparators, a logic control unit, and the like, and of course, the system on chip may also include a processor, a memory, and the like. Of course, in other embodiments of the present application, the battery protection module 2100 may not be implemented on a system on a chip, and may be designed according to the needs of a 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, a 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), a 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 the top), and a 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 turn on or off through the switch control terminal CO/DO, so that when the logic control unit 2110 controls the first switch unit 2300 to turn on or off, the battery 2400 may supply power to the system circuit 131 through the first switch unit 2300 at this time, the system circuit 131 is in a normal operation mode, when the logic control unit 2110 controls the first switch unit 2300 to turn off or off, the battery 2400 stops supplying power to the system circuit 131, the system circuit 131 is in a 0 power consumption mode (no consideration of leakage current), and further the airflow sensor 133, the atomizer 132 are also disconnected from a discharge circuit of the battery 2400, and the airflow 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 located on the same system on chip (the first switch unit may be located on another system on chip, or may not be located on the system on chip), where the system on chip and the chip are the same, the system on chip may not include a processor, a memory, and the like, but only include some comparators, a logic control unit, and the like, and of course, the system on chip may also include a processor, a memory, and the like. 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 a user.
4. Referring to fig. 6, the first switch unit 2300 is disposed in the battery protection module 2100 (the first switch unit 2300 is disposed in the same system on a chip, and at this time, the first switch unit 2300 and the battery protection module 2100 are disposed in the same system on a chip), and at this time, the control terminal of the first switch unit 2300 is electrically connected to the logic control unit 2110, the first terminal of the first switch unit 2300 is electrically connected to the first power supply terminal VDD1, the first power supply terminal VDD1 is electrically connected to the positive electrode of the battery 2400 (the first switch unit 2300 is disposed below), the second terminal of the first switch unit 2300 is electrically connected to the system terminal VM, and the system terminal 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 off, so that when the logic control unit 2110 controls the first switch unit 2300 to be turned on and off, the battery 2400 may supply power to the system circuit 131 through the first switch unit 2300, the system circuit 131 is in the normal operating mode, when the logic control unit 2110 controls the first switch unit 2300 to be turned off and 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 airflow sensor 133, the atomizer 132 are also disconnected from the discharge circuit of the battery 2400, and the airflow 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 the 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, the system on chip may not include a processor, a memory, and the like, but only include some comparators, a logic control unit, and the like, and of course, the system on chip may also include a processor, a memory, and the like. Of course, in other embodiments of the present application, the battery protection module 2100 may not be implemented on a system on a chip, and may be designed according to the needs of a user.
In the above 4 connection manners, the first switch unit 2300 includes a charge switch and a discharge switch, wherein the charge switch and the discharge switch are MOS transistors or other suitable field effect transistors, for example, both are NMOS transistors, PMOS transistors, etc., and the charge switch and the discharge switch are electrically connected to the logic control unit 2110, for example, in fig. 2 and 4, the switch control terminal CO/DO of the battery protection module 2100 includes a charge switch control terminal CO and a discharge switch control terminal DO, the charge switch control terminal is electrically connected to the control terminal of the charge switch, the discharge switch control terminal is electrically connected to the control terminal of the discharge switch, the charge switch control terminal CO and the discharge switch control terminal DO are electrically connected to the logic control unit 2110, so as to control the charge switch and the discharge switch by the logic control unit 2110. In addition, in other embodiments of the present application, the first switch unit 2300 may further include a switch transistor and a substrate control circuit, the switch transistor is a MOS or other field effect transistor, the control terminal of the switch transistor is electrically connected to the switch control terminal CO/DO, the substrate control circuit is electrically connected to the logic control unit 2110, and the substrate control circuit is configured to realize correct biasing of the substrate of the switch transistor, for example, to make the switch transistor at different biases when the battery 2400 is discharged and the battery 2400 is charged. However, the present application is not limited thereto, and in other embodiments of the present application, the first switch unit 2300 may also be implemented in other forms, for example, only include one switch tube, and the switch tube controls the discharge.
In this application, the first switch unit 2300 is used to control the battery 2400 to supply power to the system circuit 131, specifically, a discharge loop 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, 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 operates normally.
In this 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 switch 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 this application, in order to actively reduce the power consumption of the electronic cigarette, increase the power retention time of the battery 2400, and improve the experience of the user, the following describes a specific embodiment of the present application.
First embodiment
In the embodiment, referring to fig. 1 and fig. 2, the electronic cigarette 100 is a conventional electronic cigarette, and the cartridge 120 is a replaceable cartridge, and after 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 smoke rod 110 is a rechargeable battery 2400, such as a lithium battery, a nickel cadmium battery, a nickel hydrogen battery, and the like, the smoke rod 110 includes a charging interface, the charging interface is electrically connected to the battery 2400 through the battery protection circuit 2000, the charging interface is used for being electrically connected to an external charger, and the charger can provide a voltage and a current of 5V/1A or 5V/2A, for example, to charge the battery 2400. When the electric quantity of the battery 2400 in the electronic cigarette is low, a user can connect the charger through the charging interface 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 cigarette rod 110 further includes a charging management circuit, the charging management circuit is configured to manage charging voltage and charging current once, 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 and a charge overcurrent protection unit, which are used to perform charge secondary protection on the battery 2400. Preferably, the charging management circuit is a charging management chip and its peripheral circuits.
Referring to fig. 2 and fig. 7, in the present embodiment, the first switch unit 2300 is external and the first switch unit 2300 is downward, that is, the first switch unit 2300 is located outside the battery protection module 2100, and a first end of the first switch unit 2300 is electrically connected to the negative electrode of the battery 2400. In this embodiment, the second terminal of the first switch unit 2300 is electrically connected to the system terminal VM and the system circuit 131, the control terminal of the first switch unit 2300 is electrically connected to the switch control terminal CO/DO of the battery protection module 2100, and the switch control terminal 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 first switch unit 2300 to be turned on or turned off through the switch control terminal CO/DO. In addition, in other embodiments of the present application, the first switch unit 2300 may also be built in and down.
Referring to fig. 7, in this embodiment, the battery protection circuit 2000 further includes a proximity detection module, the proximity detection module is electrically connected to the proximity unit, and the proximity detection module and the proximity unit do not belong to a part of the system circuit 131, that is, the proximity detection module may be powered to continue to be used when the system circuit 131 stops supplying power. In this embodiment, the proximity detection module is configured to detect whether a body of a user is in proximity to the proximity unit, and when a 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, and when the distance between the body of the user and the proximity unit is greater than the preset second threshold, the proximity detection module sends another signal, preferably, the preset second threshold may be adjusted to be equal to a distance between the proximity unit and a surface of the electronic cigarette, that is, when a surface of the electronic cigarette is changed from user-contact-free to user-contact-free or from user-contact-free, the proximity detection module may detect the user-contact-free surface and output a different electrical signal, for example, when the body of the user is in contact with 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 in contact with the surface of the electronic cigarette or is changed from contact-free, the proximity detection module can detect and generate another electrical signal, where the user's proximity or non-proximity to the proximity unit can be characterized by capacitance, inductance, photo-electricity, etc. In addition, in other embodiments of the present application, the preset second threshold may be adjusted to be greater than a distance between the proximity unit and the surface of the electronic cigarette, and the user can also be detected when the user has a certain distance from the surface of the electronic cigarette, preferably less than 15 mm. 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 also be an infrared proximity detection module, an ultrasonic proximity detection module, or the like, for example. The proximity detection module does not change the using habit of the user, does not change the outer surface of the electronic cigarette or changes the outer surface of the electronic cigarette to be small, and the lip or other parts of the user can contact or approach the surface of the electronic cigarette to detect an electric signal which can be used for entering or exiting the ship mode of the electronic cigarette.
In the present embodiment, the capacitance detecting module 2200 includes a capacitance detecting unit 2220 (see fig. 9), a second power supply terminal VDD2, and a second power ground terminal GND 2. 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 since the detection principle of the capacitance detecting unit 2220 on the capacitance is conventional in the art, the details thereof are not repeated herein. In addition, fig. 8 only illustrates 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 can be obtained by simple modifications by those skilled in the art, and this 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 electrode and the negative electrode of the battery 2400, respectively, so that the battery 2400 can supply power to the capacitance detection unit 2220 to enable the capacitance detection unit 2220 to operate.
Referring to fig. 7, in the present embodiment, the capacitance detecting module 2200 further includes a capacitance detecting terminal CJ electrically connected to the capacitance detecting unit 2220. The electronic cigarette further comprises the proximity unit, and the proximity unit and the proximity detection module together detect whether a body part of the user contacts or approaches the surface of the electronic cigarette, for example, whether the lips of the user contact or approaches the suction nozzle 122, whether the palm of the user contacts or approaches the cigarette holder 110, and the like. The proximity unit includes one or more sensing electrodes 2210, the sensing electrodes 2210 are electrically connected to the capacitance sensing terminal CJ, and the sensing electrodes 2210 are located at the suction nozzle 122 of the cartridge 120 in this embodiment. Of course, in other embodiments of the present application, the detection electrode 2210 may also be located in other parts of the electronic cigarette, such as the cigarette rod 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, a person skilled in the art may also implement other conventional proximity detection technologies to detect whether a body part of a user contacts the surface of the electronic cigarette, such as biological proximity detection means (e.g. saliva detection, biological detection, etc.), which is also within the scope of the present application.
In this embodiment, the battery assembly further includes at least one reference capacitor C2, the reference capacitor C2 is located inside the smoke rod 110, the reference capacitor C2 is connected in parallel with the detection electrode 2210 to be electrically connected to the capacitance detection terminal 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, the reference capacitor C2 exists between the capacitance detection end CJ and the ground, when the user uses the electronic cigarette, the lips of the user contact the suction nozzle 122, a proximity capacitor connected in parallel with the reference capacitor C2 is generated between the detection electrode 2210, the lips and the ground, at this time, the total capacitor is the sum of the reference capacitor C2 and the proximity capacitor, so that the total capacitor is increased, at this time, the RC time constant of the oscillating circuit in the capacitance detection unit 2220 is correspondingly increased, as can be known from the RC oscillator principle, the RC time constant is increased, the charging and discharging period is lengthened, and the oscillator frequency is correspondingly decreased, so that whether the lips contact the suction nozzle 122 or not can be detected by detecting the charging and discharging period or the frequency change 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, for example, in a conventional manner such as a capacitance voltage dividing manner, a charging time measuring manner, and the like. In addition, in other embodiments of the present application, the detecting electrode 2210 may not be located at the suction nozzle 122 of the cartridge 120, but may be located on the cigarette rod 110. In addition, in other embodiments of the present application, the reference capacitor C2 may not be provided in the cigarette rod 110. In addition, in other embodiments of the present application, when the user touches the suction nozzle 122 with his lips, the total capacitance is not limited to be increased, but may be decreased.
Referring to fig. 7, in this embodiment, the capacitance detection module 2200 is further electrically connected to the battery protection module 2100, when the capacitance detection module 2200 detects a change in capacitance, the capacitance detection module 2200 generates a shipping control signal and outputs the shipping control signal to the battery protection module 2100, the shipping control signal is a shipping entry signal and/or a shipping exit signal, the battery protection module 2100 actively enters or exits a shipping mode, and in the shipping mode, the first switch unit 2300 is turned off to stop the battery 2400 from supplying power to the system circuit 131, so that the system circuit 131, the atomizer 132, the airflow sensor 133, and the like do not consume power under ideal conditions, at this time, the circuits such as the system circuit 131, the atomizer 132, the airflow sensor 133, and the like are in a 0 power consumption mode, and the power consumption of the circuits such as the system circuit 131, the atomizer 132, the airflow sensor 133, and the charging management circuit is close to 0.
In this embodiment, the capacitance change refers to that the capacitance is greater than the first threshold or the capacitance is smaller than the first threshold, where the capacitance greater than or smaller than the first threshold includes that the total capacitance itself is greater than or smaller than the first threshold, and also includes that the charge-discharge period, the frequency, and the like are greater than or smaller than the first threshold due to the change of the capacitance, which is also within the range included in the capacitance change. In this embodiment, the first threshold may be preset according to the user's needs. 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 lips of the user touch the mouthpiece 122 of the electronic cigarette or the conventional cigarette, there is a time difference of several tens of milliseconds from the time when the user finally smokes the cigarette, and this time difference is fully utilized to change the electronic cigarette from the shipping mode to the normal operation mode, i.e. to exit the shipping mode. Specifically, in this embodiment, when the lips of the user contact the suction nozzle 122, the capacitance detection unit 2220 detects that the total capacitance increases, for example, through frequency, charge/discharge cycle, etc., at this time, the capacitance detection unit 2220 sends a shipping exit signal to the battery protection module 2100, so that the battery protection module 2100 exits the shipping mode, the battery protection module 2100 controls the first switch unit 2300 to be turned on and off, the battery 2400 supplies power to the system circuit 131 through the first switch unit 2300, the airflow sensor 133 is supplied power, the battery protection module 2100, the system circuit 131, and the airflow sensor 133 are in the normal operation mode, the time from when the lips of the user contact the suction nozzle 122 to when the battery protection module 2100, the system circuit 131, and the airflow sensor 133 are in the normal operation mode is generally at the millisecond level, the user cannot feel the smoke completely, when the user inhales the smoke, the airflow sensor 133 detects that the smoke airflow causes the change of the electrical signal, for example, the system circuit 131 detects the change of the electrical signal, and then controls the operation of the atomizer 132, and controls the power of the atomizer 132 according to the change of the electrical signal, so as to control the smoke output.
When the lips of the user leave the mouthpiece 122 or when the electronic cigarette exits the shipping mode for a first predetermined time, 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 enters the shipping mode again, and the first switch unit 2300 is turned off, so that the battery 2400 no longer supplies 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 this embodiment has following advantage:
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, and the appearance of the electronic cigarette is not changed due to the additionally arranged capacitance detection mode, so that the appearance feeling of a user on the electronic cigarette for a long time is met, and the electronic cigarette is easily accepted by the user;
2. the electron cigarette just can get into or withdraw from the shipping mode through the change of electric capacity detection module 2200 listening electric capacity, thereby, long-time transportation, when storage or user do not use, the electron cigarette itself can automatic entering shipping mode, need not add the carrier, storage person or user extra operation, also need not the host computer to carry out the cooperation operation, this is especially important to producer or the carrier of big batch electron cigarette, can not increase its extra operation burden, also need not the cooperation of extra equipment, be favorable to reduce cost. The first switch unit 2300 of shipping mode breaks off the return circuit that discharges between battery 2400 and the system circuit 131, thereby battery 2400 stops to supply power to the system circuit 131, airflow sensor 133, atomizer 132, the great components and parts of power consumption such as charge management circuit, the circuit can not consume the electric energy, be favorable to reducing the consumption of electron cigarette, it is long when can increase the use of electron cigarette, even the electron cigarette transports for a long time, save or place, the electron cigarette also has more sufficient electric energy, the user just does not have the circumstances of electricity when perhaps using for the first time when the market is experienced in the electron cigarette can not appear, user's use experience has been promoted. It is particularly important that the user does not need to wake up the electronic cigarette through additional steps, for example, when the lips of the user contact the mouthpiece 122 of the cartridge 120, the capacitance detection module 2200 can quickly detect the capacitance change and quickly exit the shipping mode, the first switch unit 2300 is closed quickly in a very short time, generally speaking, the lips of the user contact the mouthpiece 122 until the smoking action is performed, and in this embodiment, the time from the lips of the user contacting the mouthpiece 122 to exiting the shipping mode is generally in the millisecond level, the fast response can reach the microsecond level, the user cannot completely feel that the battery protection module 2100 of the previous electronic cigarette is in the shipping mode, when the user sucks the electronic cigarette, at this time, the airflow sensor 133, such as the microphone and the MEMS, is already powered on, the system circuit 131 detects the change of the electrical signal in the airflow sensor 133, and then controls the operation of the atomizer 132 and the power of the atomizer 132, realizing the smoke discharge. Therefore, the embodiment can reduce the energy consumption of the electronic cigarette, does not influence the use habit formed by the user for a long time, 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 the embodiment, when the lips of the user contact the suction nozzle 122, the electronic cigarette exits the shipping mode, and when the lips of the user leave the suction nozzle 122 or contact the suction nozzle 122 for a first preset time, the electronic cigarette automatically enters the shipping mode, and the first switch unit 2300 disconnects 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, when the user smokes the cigarette, the electronic cigarette works in a normal working mode, and when the user does not smoke, particularly when the user has a gap between two cigarettes, the electronic cigarette is also in the shipping mode, so that the power consumption of the electronic cigarette can be reduced to the utmost extent, the service life of the electronic cigarette is greatly prolonged, the battery 2400 can be used for a long time, the user does not need to frequently charge, 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 at a nano-ampere level, the power consumption is very low, the standby time of the electronic cigarette is not additionally reduced, and the cost of the capacitor detection module 2200 is very low, so that the cost of the electronic cigarette is not increased;
5. in this embodiment, when the electronic cigarette is transported, stored or not used by a user, the first switch unit 2300 is automatically turned off, and the electronic cigarette is in a shipping mode, so that the system circuit 131 does not consume power, and even if the airflow sensor 133 is changed due to an abnormal form (due to airflow), the electronic cigarette does not work, and the problem that the electronic cigarette is mistakenly triggered to work does not exist;
6. In this embodiment, because the electron cigarette contains battery protection module 2100 to when the card during operation of electron cigarette appears abnormalities such as short circuit, battery protection module 2100 can in time pinch off battery 2400 and system circuit 131's electricity and be connected, has promoted the security performance of electron cigarette. Moreover, when the electronic cigarette is stored, stored or transported, the electronic cigarette is in a shipping mode, and the system circuit 131, the airflow sensor 133 and other circuits are not powered, so that the safety problem does not exist even if the electronic cigarette is in an abnormal state such as a short circuit.
In order 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 shipping entrance end QR2 and a second shipping exit end QC2, the second shipping entrance end QR2 and the second shipping exit end QC2 are respectively electrically connected to the output end of the capacitance detection unit 2220, the battery protection module 2100 includes a first shipping entrance end QR1, the first shipping entrance end QR1 is electrically connected to the second shipping entrance end QR2, the first shipping entrance end QR1 is used to enable the battery protection module 2100 to enter a shipping mode when receiving a shipping entrance signal, and the second shipping exit end QC2 is electrically connected to the system end VM. In this embodiment, the reference to how the battery protection module 2100 enters the shipping mode after the first shipping entrance QR1 receives the shipping entrance signal can be found in the patent previously applied and published by the applicant, and the content of the previous disclosure is also included in the disclosure of the present application and will not be described herein again.
With continued reference to fig. 9, in the present embodiment, the capacitance detecting module 2200 further includes a first timing unit 2230, two ends of the first timing unit 2230 are electrically connected to the second shipping entrance QR2 and the capacitance detecting unit 2220, respectively, and the second shipping exit QC2 is also electrically connected to the capacitance detecting unit 2220. When the lips contact the suction nozzle 122, the capacitance detection unit 2220 detects a change in capacitance, for example, the total capacitance increases, the capacitance detection unit 2220 generates a shipping exit signal and outputs the shipping exit signal to the second shipping exit QC2, where the shipping exit signal is a low level signal, the second shipping exit QC2 outputs the shipping exit signal to the system VM, and the system VM is pulled from a high level to a low level (the low level is relative to the negative of the battery), thereby controlling the battery protection module 2100 to exit the shipping mode; furthermore, while the capacitance detection unit 2220 outputs a shipping exit signal to the second shipping exit QC2, the first timing unit 2230 also receives the shipping exit signal, the first timing unit 2230 performs reset timing, when the first timing unit 2230 times a first preset time, the first timing unit 2230 generates a shipping entry signal and outputs the shipping entry signal to the second shipping entry QR2, the second shipping entry QR2 outputs the shipping entry signal to the first shipping entry QR1, the battery protection module 2100 controls the battery protection module 2100 to enter the shipping mode after receiving the shipping entry signal, and the battery protection module 2100 exits the shipping mode the next time when the user touches the suction nozzle with his lips. In this embodiment, when the lips leave the suction nozzle 122, the capacitance detecting unit 2220 detects that the total capacitance decreases, at this time, the capacitance detecting unit 2220 outputs another signal, for example, a high level signal, and at this time, the first timing unit 2230 and the battery protection module 2100 do not operate, that is, the signal is not used 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 circuits may perform high and low signal conversion through a logic gate or other circuits, for example, perform conversion through a not gate, and those skilled in the art may perform conversion according to the needs of the subsequent circuits to obtain the desired signal, which is also within the scope of the present application.
In order to further reduce the power consumption of the electronic cigarette and increase the usage time of the electronic device such as the electronic cigarette, in this embodiment, at least some of the units of the battery protection module 2100 are powered off in the shipping mode. In the present 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, etc. 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, and 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, and the reference voltage generation unit 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 overcurrent charge protection unit, the logic control unit 2110, and the reference voltage generation unit are not consumed in the shipping mode, The logic control unit 2110 and three of the reference voltage generation unit consume no power …, 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 2110 and the reference voltage generation unit do not consume power in the shipping mode, so that the power consumption of the battery 2400 can be further reduced. In other embodiments of the present application, the battery protection module 2100 further includes an over-temperature protection unit, and the like, and the over-temperature protection unit may consume no power or power in the ship mode, which is also within the scope of the present invention.
In this embodiment, the battery protection module 2100 does not consume power in the ship mode as a whole, that is, the battery protection module 2100 is in the 0 power consumption mode, and ideally, the power consumption of the battery protection module 2100 is close to 0 in the 0 power consumption mode (the battery protection module cannot be completely turned off in consideration of a leakage current and the like), so that the power consumption of the electronic cigarette is reduced to the utmost. In this way, the electric quantity of battery 2400 can be further saved, the consumption of the electric quantity of battery 2400 is reduced, the electric quantity retention time of battery 2400 is further prolonged, and especially the electric quantity retention time of small-capacity battery 2400 can be prolonged.
In this embodiment, the first switch unit 2300 is down-set, when the battery protection module 2100 is in the ship mode, the system side VM is pulled high (relative to the negative pole of the battery). When the system side VM is pulled down, and the battery protection module 2100 is in the normal operation mode after exiting the shipping mode, the battery protection module 2100 operates normally.
Referring to fig. 1, 10 and 11, in the present embodiment, the cartridge 120 includes a suction nozzle 122, a cartridge main body 121, an atomizer 132 and tobacco tar, the suction nozzle 122 is connected to a first end (upper end) of the cartridge main body 121, a hollow flue 125 is disposed inside the suction nozzle 122, the cartridge main body 121 is hollow, and the atomizer 132 and the tobacco tar are located inside the cartridge main body 121.
Referring to fig. 10 and 11, in the present embodiment, the detection electrodes 2210 are disposed at the suction nozzle 122, and the number of the detection electrodes 2210 in the present embodiment is one. Specifically, the minimum pitch between the detection electrode 2210 and the outer surface of the suction nozzle 122 is larger than 0, for example, the minimum pitch is 0.1mm, 0.5mm, 1mm, 2mm, 3mm, 4mm, 5mm, or the like. In this embodiment, the detection electrode 2210 is located between an inner surface of the flue 125 wall and an outer surface of the outer wall of the suction nozzle 122, e.g., embedded in the flue 125 wall or embedded in the outer wall, so that the user has the detection electrode 2210 disposed in the suction nozzle 122 completely invisible from the surface of the suction nozzle 122. In addition, in other embodiments of the present application, the detection electrode 2210 is located between the wall of the flue 125 and the outer wall, and in order to prevent moisture and smoke from affecting the detection electrode 2210, a sealed accommodating cavity is formed between the wall of the flue 125 and the outer wall, and the detection electrode 2210 is located in the accommodating cavity. In addition, in other embodiments of the present application, detection electrode 2210 may also be attached to the inner or outer surface of the wall of flue 125, or to the inner surface of the outer wall. In the present embodiment, the number of 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 includes a first layer, a second layer, a third layer, and a fourth layer from inside to outside in sequence, wherein a gap exists between the second layer and the third layer to form an accommodating 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, there may be no gap between the second layer and the third layer in other embodiments of the present application. In this embodiment, the detecting electrode 2210 is disposed 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 the third layer, wherein the first layer and the fourth layer are made of food grade materials, the first layer forms the smoke channel 125 and is in direct contact with 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 such as polyethylene, PET polyethylene terephthalate, HDPE high density polyethylene, PP polypropylene, PS polystyrene, etc.; the second and third layers are constructed of non-food grade materials, such as conventional plastic materials, and are provided to reduce the cost of the mouthpiece 122. In addition, in other embodiments of the present application, the suction nozzle 122 may be provided without the second layer and the third layer, or with 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 very convenient for manufacturing. In addition, in other embodiments of the present application, the suction nozzle 122 may be made of food grade material, and only the detection electrode 2210 needs to be embedded in the suction nozzle 122, so that the manufacturing is very convenient. In addition, in other embodiments of the present application, the suction nozzle 122 may also not be limited to a four-layer structure, but may also include more layers.
In this embodiment, the detecting electrode 2210 may be, for example, a metal electrode, a conductive cotton, a conductive ink, a conductive rubber, an ITO layer, etc., and in the case of a metal electrode, the detecting electrode 2210 may be, for example, a metal sheet, a metal wire, a metal spring, a metal film, etc., and the metal film may be, 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, when the material on the outer side of the detecting electrode 2210 is damaged, the user will not be damaged.
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 also 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) toward the cartridge body 121, so as to take into account the usage habits of different users, that is, when the contact positions of different users with the suction nozzle 122 are different, the setting mode of the detection electrode 2210 can be well applied to the usage habits of different users, the application range is wide, and the situation that the lips of the user contact the suction nozzle 122 and the change of the total capacitance is not triggered will not occur. For example, some users are used to touch the upper end of the nozzle 122, some users are used to touch the middle and lower of the nozzle 122, and the detection electrode 2210 is arranged along the length direction of the electronic cigarette to adapt to the use habits of various users. Preferably, the detecting electrode 2210 extends from one side of the suction nozzle 122 to the opposite side of the suction nozzle 122, further improving the stability of the detection by the detecting electrode 2210. In addition, in other embodiments of the present application, the detecting electrode 2210 can be disposed around the suction nozzle 122 like a spring, and this arrangement also has a good capacitive detecting effect.
In this embodiment, the sensing electrode 2210 is in an inverted U shape, the sensing electrode 2210 extends from a first side of the nozzle 122 to a second side of the nozzle 122, the first side and the second side being disposed opposite to each other, and the sensing electrode 2210 is located at one side of the flue 125. In addition, in other embodiments of the present application, the detection electrode 2210 is wave-shaped, and the detection electrode 2210 is circumferentially disposed along the circumferential direction of the suction nozzle 122. In other embodiments of the present application, the detection electrode 2210 is spiral-shaped, and a central axis of the detection electrode 2210 is parallel to or coincides with a central axis of the cartridge 120. In addition, in other embodiments of the present application, detection electrode 2210 has a long bar shape, and detection electrode 2210 extends in a central axis direction of 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 shaped like a long bar, the detection electrodes 2210 extend in the central axis direction of the suction nozzle 122, the plurality of detection electrodes 2210 are arranged in the circumferential direction of the suction nozzle 122, and the plurality of detection electrodes 2210 are arranged in parallel.
Generally speaking, some of the mouthpiece 122 is flat, and the flat mouthpiece 122 includes four sides besides the end close to the tobacco rod 110 and the end far away from the tobacco rod 110, which are a first wide side wall, a second wide side wall, a first narrow side wall, and a second narrow side wall, in this order, the width of the wide side wall is greater than the width of the narrow side wall, and the length of the wide side wall is generally equal to the length of the narrow side wall. At this time, the detection electrode 2210 is preferably formed in an inverted U shape, and the detection electrode 2210 of the inverted U shape extends from a first wide side wall of the suction nozzle 122 to an 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 detection electrodes 2210 having the inverted U-shape is two, two detection electrodes 2210 are respectively disposed at two sides of the smoke channel 125, and the two detection electrodes 2210 can be connected in parallel, so that when the lips of the user contact the suction nozzle 122, the two detection electrodes 2210 form two approximate capacitors, and the total capacitance is increased more. In other embodiments of the present application, the detection electrode 2210 may be disposed only on at least one of the four surfaces of the nozzle 122, and in this case, the detection electrode 2210 may have a long shape. In addition, in other embodiments of the present application, sensing electrode 2210 is preferably located on the first wide side wall and/or the second wide side wall, which are easily accessible to the lips of the user, and which are sometimes not accessible due to the gap between the upper and lower lips.
In this embodiment, the detecting electrode 2210 is formed in an inverted U shape, and the width of the inverted U-shaped detecting electrode 2210 near the upper end of the 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 nozzle. In addition, in other embodiments of the present application, the detecting electrode 2210 may also be in a shape of a long bar, the long bar-shaped detecting electrode 2210 is located on the first wide side wall and/or the second wide side wall, and a width ratio of the upper end and the lower end of the detecting electrode 2210 is smaller than a width of the middle of the detecting electrode 2210, that is, the two ends of the detecting electrode 2210 are thin and the middle is wide. In other embodiments of the present application, the detection electrode 2210 is L-shaped, a short portion of the L-shaped detection electrode 2210 is positioned at the upper end of the nozzle 122 and at the side of the flue 125, and a long portion of the detection electrode 2210 is positioned on the first wide side wall or the second wide side wall.
In this embodiment, the detection electrode 2210 is located inside the nozzle 122, the detection electrode 2210 is electrically connected to the capacitance detection module 2200, and the detection electrode 2210 detects whether the user's lips contact or approach the nozzle 122, thereby controlling the battery protection module 2100 to exit from or enter into the ship mode. In addition, in other embodiments of the present application, the detection electrode 2210 and the capacitance detection module 2200 are used to detect whether the lips of the user touch the nozzle 122, and can also be used to realize other functions of the electronic cigarette, such as counting the usage frequency of the electronic cigarette, counting the time length of the user touching the nozzle each time, counting the usage time length of the electronic cigarette, the standby time length, and the like.
With continued reference to fig. 10 and 11, in the present 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 to the mouthpiece 122, the lower end of the cartridge housing 123 is connected to the bottom plate 134, for example, the bottom plate 134 closes the lower end of the cartridge housing 123, the atomizer 132 is disposed on the bottom plate 134, the atomizer 132 is located in the cartridge housing 123, two first conductive members 124 are further disposed on the bottom plate 134, the first conductive members 124 include conductive contact pads, conductive pins, conductive pillars, conductive tabs, or gold fingers, the two first conductive members 124 are respectively electrically connected to the atomizer 132, the two first conductive members 124 are used for electrically connecting to the system circuit 131 in the cigarette rod 110, so as to control the atomizer 132 by the system circuit 131, meanwhile, the first conductive member 124 is arranged, so that the cartridge body 121 can be separated from the cigarette rod 110, and 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 side wall of the cartridge housing 123, i.e., the first electrical connector 126 is located between the inner and outer surfaces of the cartridge housing 123, which is convenient for sealing; furthermore, the lower portion of the cartridge housing 123 protrudes inward at least partially in the central axis direction of the cartridge 120 to form an inner protrusion 135, and the first electrical connector 126 is located on the inner protrusion 135, or the first electrical connector 126 is located on the inner protrusion 135 partially and on the cartridge housing 123 partially, and the bottom plate 134 is recessed in a position corresponding to the inner protrusion 135. In addition, in other embodiments of the present application, the first electrical connection 126 is disposed on the bottom plate 134, particularly in a region outside the two first conductive members 124, for example, outside one of the first conductive members 124. In the embodiment, the first electrical connection member 126 includes a conductive contact, a conductive pin, a conductive column, a conductive tongue, a gold finger, or the like, but the application is not limited thereto, and other connection methods that can achieve contact electrical connection may also be used.
In the present embodiment, the first electrical connector 126 and the detection electrode 2210 are electrically connected through a first intermediate connector 127, and the first intermediate connector 127 is, for example, a wire or a lead wire, and since the wire has an insulating layer, the wire can penetrate through the smoke to electrically connect the detection electrode 2210 and the first electrical connector 126, that is, the first intermediate connector 127 can be located in the hollow inner cavity of the smoke cartridge housing 123. In addition, a line-passing channel is further disposed between the inner sidewall and the outer sidewall of the cartridge housing 123, the line-passing channel extends along the central axis of the cartridge 120, and the line-passing channel is used to accommodate the first intermediate connector 127, so as to electrically connect the detection electrode 2210 and the first electrical connector 126. In addition, in other embodiments of the present application, the outer surface of the cartridge housing 123 is recessed inward to form a wire guide groove extending along the central axis of the cartridge 120 for receiving the first intermediate connector 127. Additionally, in other embodiments of the present 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 smoke rod housing 111 is located at the lower side of the smoke cartridge housing 123, and an inner cavity is formed in the smoke rod housing 111, and the battery 2400, the battery protection module 2100, the capacitance detection module 2200, the system circuit 131, the airflow sensor 133, and the like are accommodated in the inner cavity. Moreover, the lower extreme of tobacco rod shell 111 is equipped with the interface that charges, the interface that charges is connected with battery protection circuit 2000 electricity via the management circuit that charges, the lateral wall that tobacco rod shell 111 is close to cigarette bullet 120 is recessed to form depressed groove 136, depressed groove 136 is used for holding partial cigarette bullet 120, realize the releasable connection of cigarette bullet 120 and tobacco rod 110, for example joint, magnetism closure are connected, after the tobacco tar in cigarette bullet 120 is used up, the user can follow cigarette rod 110 and pull down cigarette bullet 120, change into new cigarette bullet 120, realize the used repeatedly of tobacco rod 110. In order to realize the electrical connection between the cartridge 120 and the tobacco rod 110, in this embodiment, two second conductive members 113 are disposed on the groove wall of the recessed groove 136, the two second conductive members 113 on the groove wall are disposed corresponding to the two first conductive members 124 on the cartridge 120, and the two second conductive members 113 on the groove wall 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 rod 110 are in contact with each other, so that the two members are electrically connected to each other, and the system circuit 131 is electrically connected to the atomizer 132. In the present embodiment, the second conductive member 113 is preferably a pogo pin.
In this embodiment, a second electrical connector 112 is further disposed on a groove wall of the recessed groove 136, 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. When the cartridge 120 is mounted in the recess 136 of the cigarette rod 110, the second electrical connector 112 is electrically connected to the first electrical connector 126 in a contact manner, so that the capacitive detection module 2200 is electrically connected to the detection electrode 2210. In the present embodiment, the second electrical connector 112 is preferably a pogo pin. However, the present application is not limited thereto, and in other embodiments of the present application, the second electrical connector 112 may also be in other electrical connection manners as long as the first electrical connector 126 and the second electrical connector 112 can be stably connected in an electrical contact manner, where the first electrical connector 126 and the second electrical connector 112 are, for example, a female connector, a male connector, a metal tube and a metal rod, and the like.
In order to enable the capacitance detection module 2200 to detect the change of the capacitance at any time, in this embodiment, the capacitance detection module 2200 is powered by the battery 2400 all the time. 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 both 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 of the first switching unit 2300, the first power supply terminal VDD1 and the second power supply terminal VDD2 are all electrically connected to the positive electrode of the battery 2400. So that the opening or closing of the first switching unit 2300 has no influence on the power supply of the capacitance detecting module 2200.
In addition, in other embodiments of the present application, the electronic cigarette further includes a cap, which is 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 off the cigarette cap. Here, an approaching unit is arranged in the suction nozzle 122, a triggering unit is arranged on the cigarette cap, the triggering unit and the approaching unit are correspondingly arranged, when the cigarette cap covers the suction nozzle 122, the trigger unit is closer to the approaching unit, so that the approaching detection module can detect that the trigger unit is closer to the approaching unit, and then generates a shipping entry signal and transmits it to the battery protection module 2100, the battery protection module 2100 enters a shipping mode, when the cigarette cap leaves the suction nozzle 122, the trigger unit is far away from the approaching unit, the approaching detection module can detect that the trigger unit is far away from the approaching unit, therefore, the proximity detection module generates a shipping exit signal to the battery protection module 2100, the battery protection module 2100 exits the shipping mode, and the user can use the electronic cigarette normally, that is, in this embodiment, the electronic cigarette triggers the battery protection module 2100 to enter or exit the shipping mode through the cigarette cap.
Here, the proximity unit includes a magnetic sensor, such as a hall sensor or the like, and the trigger unit includes a magnet. In addition, in other embodiments of the present application, the proximity unit includes a transmitter and a receiver, the transmitter is, for example, an infrared transmitter, an ultrasonic transmitter, and the like, the receiver is, for example, an infrared receiver, an ultrasonic receiver, and the like, the trigger unit includes a reflection member, the reflection member is, for example, an aluminum reflection member, the transmitter is configured to transmit a signal to the reflection member, the reflection member is configured to reflect a signal transmitted by the transmitter to the receiver, and the receiver is configured to receive a signal reflected by the reflection member. When the cigarette cap is covered on the suction nozzle, the receiver can receive the reflected signal, and when the cigarette cap is not covered on the suction nozzle, the receiver cannot receive the signal. 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 cigarette 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, and therefore the non-described portions of the present embodiment can refer to the first embodiment, and the main difference between the present embodiment and the first embodiment is that the first switch unit 2300 is externally disposed and the first switch unit 2300 is externally disposed.
Referring to fig. 13, in the present embodiment, the first switch unit 2300 is external and the first switch unit 2300 is upper, that is, the first switch 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 terminal VM and the system circuit 131, the control end of the first switch unit 2300 is electrically connected to the switch control terminal CO/DO of the battery protection module 2100, and the switch control terminal 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 terminal CO/DO. In addition, in other embodiments of the present application, the first switching unit 2300 may also be built in and on.
Referring to fig. 9 and 13, 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 shipping entrance end QR2 and a second shipping exit end QC2, the second shipping entrance end QR2 and the second shipping exit end QC2 are respectively electrically connected to the capacitance detection unit 2220, the battery protection module 2100 includes a first shipping entrance end QR1, the first shipping entrance end QR1 is electrically connected to the second shipping entrance end QR2, the first shipping entrance end QR1 is configured to enable the battery protection module 2100 to enter a shipping mode when receiving a shipping entrance signal, and the second shipping exit end QC2 is electrically connected to the system end VM.
Referring to fig. 13 and 9, in the present embodiment, the capacitance detecting module 2200 further includes a first timing unit 2230, two ends of the first timing unit 2230 are electrically connected to the second shipping entrance QR2 and the capacitance detecting unit 2220, respectively, and the second shipping exit QC2 is also electrically connected to the capacitance detecting 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 shipping exit signal to the second shipping exit QC2, where the shipping exit signal is a high level signal (with respect to the negative electrode of the battery), the second shipping exit QC2 outputs a shipping exit signal to the system VM, and the system VM is pulled from a low level to a high level, thereby controlling the battery protection module 2100 to exit the shipping mode; furthermore, while the capacitance detection unit 2220 outputs a shipping exit signal to the second shipping exit QC2, the first timing unit 2230 also receives a shipping exit signal, the first timing unit 2230 performs reset timing, when the first timing unit 2230 times a first preset time, the first timing unit 2230 outputs a shipping entry signal to the second shipping entry QR2, the second shipping entry QR2 outputs a shipping entry signal to the first shipping entry QR1, and the battery protection module 2100 controls the battery protection module 2100 to enter the shipping mode after receiving the shipping entry signal. In this embodiment, when the lips leave the suction nozzle 122, the capacitance detecting unit 2220 detects that the total capacitance decreases, at this time, the capacitance detecting unit 2220 outputs another signal, for example, a low level signal, and at this time, the first timing unit 2230 and the battery protection module 2100 do not operate, that is, the signal is not used 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 circuits may perform high and low signal conversion through a logic gate or other circuits, for example, perform conversion through a not gate, and those skilled in the art may perform conversion according to the needs of the subsequent circuits to obtain the desired signal, which is also within the scope of the present application.
In this embodiment, the system side VM is pulled low in the ship mode, and when the system side VM is pulled high, the battery protection module 2100 exits the ship mode. In this embodiment, at least some of the cells of the battery protection module 2100 are not powered in the ship mode, and it is preferable that the entire battery protection module 2100 is in the 0 power consumption mode.
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, which is similar to the first and second embodiments, so that the undescribed portions of this embodiment can refer to the previous embodiments, and the main difference between this embodiment and the first and second embodiments is that the battery protection module 2100 further includes a first shipping exit QC 1.
Referring to fig. 14 and 15 in combination, in the present embodiment, the second ship exit QC2 is not directly connected to the system side VM. Specifically, the battery protection module 2100 further includes a first shipping exit QC1, the first shipping exit QC1 is electrically connected to a second shipping exit QC2, the first shipping exit QC1 is connected to an input of a first not gate 2121, an output of the first not gate 2121 is connected to an input of a first or gate 2122, another input of the first or gate 2122 is connected to the logic control unit 2110, an output of the first or gate 2122 is connected to a control terminal of the first switching unit 2300, and particularly, an output of the first or gate 2122 is electrically connected to the switch control terminal CO/DO. When the lips contact the suction nozzle 122, the capacitance detection unit 2220 detects a change in capacitance, for example, the total capacitance increases, the capacitance detection unit 2220 outputs a shipping exit signal to the second shipping exit terminal QC2, where the shipping exit signal is a low level signal, the second shipping exit terminal QC2 outputs a shipping exit signal to the first shipping exit terminal QC1, the first shipping exit terminal 1 outputs a shipping exit signal to the first not gate 2121, the shipping 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 2132300 to be turned on, so that the system terminal VM is turned on with the first power ground terminal GND1, the system terminal VM is turned from high level to low level, so as to control the battery protection module 2100 to exit the shipping mode, and the battery protection module 2100 normally operates. In this embodiment, the first not gate 2121 is pulled low after outputting a high level for a relatively short time, and the logic control unit 2110 mainly controls and controls the first switch unit 2300 to be turned on and off in the normal operation mode. The manner in which the battery protection module 2100 is put into the shipping mode is the same as that of the first embodiment, and will not be described in detail. In addition, in other embodiments of the present application, the first ship exit QC1 may also be electrically connected directly to the system side 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, which is similar to the first to third embodiments, so that the non-described portions of this embodiment can refer to the previous embodiments, and the main differences between this embodiment and the first to third embodiments are that the capacitance detection module 2200 includes a second shipping terminal QY2, and the battery protection module 2100 includes a first shipping terminal QY 1.
In the first to third embodiments, the capacitance detection module 2200 needs to be provided with the second shipping entrance end QR2 and the second shipping exit end QC2, and the capacitance detection module 2200 needs to be modified, so as to be suitable for the existing general capacitance detection module 2200, in this embodiment, the capacitance detection module 2200 is not changed, that is, the capacitance detection module 2200 is a general circuit or chip.
Referring to fig. 16 and 17, in the present embodiment, the capacitance detection module 2200 further includes a second shipping terminal QY2, the second shipping terminal QY2 is an output terminal of the capacitance detection module 2200, the capacitance detection unit 2220 is electrically connected to the second shipping terminal QY2, the battery protection module 2100 includes a first shipping terminal QY1, and the second shipping terminal QY2 is electrically connected to the first shipping terminal QY 1.
In the present embodiment, the logic control unit 2110 includes a sleep logic subunit 2130, a switch logic subunit 2150, and the like, and the sleep logic subunit 2130 is electrically connected to the first shipping terminal QY1, the switch logic subunit 2150, and the like, respectively. When the lips contact the suction nozzle 122, the capacitance detecting unit 2220 detects a change, e.g., an increase, in capacitance, so that the output shipping exit signal reaches the first shipping terminal QY1 via the second shipping terminal QY2, the first shipping terminal QY1 outputs the shipping exit signal to the sleep logic unit, and the sleep logic unit controls the battery protection module 2100 to exit the shipping 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 return of the capacitance to normal, so that the output shipping entrance signal reaches the first shipping terminal QY1 via the second shipping terminal QY2, the first shipping terminal QY1 outputs the shipping entrance 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 shipping mode.
Specifically, with continued reference 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 over-discharge 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 a second not gate 2132, the output of the second not gate 2132 being used to control whether the battery protection module 2100 is to enter into or exit from the shipping mode. When the user's lips leave the nozzle 122, the capacitance detecting unit 2220 sends a shipping entry signal to the second shipping terminal QY2, the second shipping terminal QY2 outputs a shipping entry signal to the first shipping terminal QY1, where the shipping entry signal is a high level signal, the second or gate 2133 receives a high level signal, the second or gate 2133 outputs a high level signal, the high level signal output by the second or gate 2133 is output to the switch logic subunit 2150, the switch logic subunit 2150 controls the first switch unit 2300 to be turned off and off, the voltage of the system terminal VM is changed from a low level to a high level, so that both input terminals of the first and gate 2131 are high level, the output terminal of the first and gate 2131 becomes a high level signal and is output to the second not gate 2132, the second not gate 2132 is changed to a low level, and then the battery protection module 2100 is controlled to enter the shipping mode, at this time, the first switch unit 2300 is turned off, and all the battery protection module 2100 is in the 0 mode, that is, at this time, the battery protection module 2100 generates almost no power consumption. When the user's lips contact the suction nozzle 122, the capacitance detecting unit 2220 sends a shipping exit signal to the second shipping terminal QY2, and the second shipping terminal QY2 outputs a shipping exit signal to the first shipping terminal QY1, where the shipping exit signal is a low level signal, and since the over-discharge voltage protecting unit 2140 outputs a low level signal under normal conditions, 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 becomes a high level signal after passing through the second not gate 2132, and the battery protecting module 2100 exits the shipping mode. How the signal at the output terminal of the second not gate 2132 causes the battery protection module 2100 to enter the shipping mode or exit the shipping mode is conventional 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 further change the system terminal VM to a low level through the first switch unit 2300, or directly pull down the system terminal VM to a low level, thereby exiting the shipping mode, which is described above and is not described herein again. In addition, in other embodiments of the present application, a person skilled in the art may implement the sleep logic subunit 2130 with simple modifications or adjustments to enable the battery protection module 2100 to enter and exit the shipping mode.
In addition, in other embodiments of the present application, please refer 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, further, output terminals of the first shipping terminal QY1 and the over-discharge voltage protection unit 2140 are respectively connected to two input terminals of the third and gate 2137, and an output terminal of the third and gate 2137 is further connected to the switch logic subunit 2150; an output terminal of the fourth or gate 2138 is electrically connected to an input terminal of the second not gate 2132, and an output terminal of the second not gate 2132 is used to control whether the battery protection module 2100 enters the shipping mode or exits the shipping mode. When the user's lips leave the nozzle 122, the capacitance detecting unit 2220 sends a shipping entry signal to the second shipping terminal QY2, the second shipping terminal QY2 outputs a shipping entry signal to the first shipping terminal QY1, where the shipping entry signal is a low level signal, the third and gate 2137 receives a low level signal, the third and gate 2137 outputs a low level signal, and 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 be turned off and off, the voltage of the system terminal VM is changed from a high level to a low level (at this time, the switch unit is placed on, or the switch unit is placed on, and a not gate is added between the system terminal VM and the fourth or gate 2138), so that both input terminals of the fourth or gate 2138 are at a low level, the output terminal of the fourth or gate 2138 is a low level signal and is output to the second not gate 2132, and the second not gate 2132 is changed to a high level, and then, the battery protection module 2100 is controlled to enter a shipping mode, at which time the first switch unit 2300 is turned off and turned off, and at the same time, all units of the battery protection module 2100 are in a 0 power consumption mode, that is, at this time, the battery protection module 2100 hardly generates power consumption. When the user touches the suction nozzle 122 with his lips, the capacitance detection unit 2220 sends a shipping exit signal to the second shipping terminal QY2, the second shipping terminal QY2 outputs the shipping exit signal to the first shipping terminal QY1, where the shipping exit signal is a high level signal, one of the input terminals of the third and gate 2137 is a high level signal, since the over-discharge voltage protection unit 2140 outputs a high level signal under normal conditions, the output terminal of the third and gate 2137 is a high level signal and outputs to the fourth or gate 2138, so that the output terminal of the fourth or gate 2138 is a high level signal, and becomes a low level signal after passing through the second not gate 2132, so that the battery protection module 2100 exits the shipping mode. How the signal at the output terminal of the second not gate 2132 causes the battery protection module 2100 to enter the shipping mode or exit the shipping mode is conventional 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 further 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, thereby exiting the shipping mode, which is described above and is not described herein again. In addition, in other embodiments of the present application, a person skilled in the art may implement the sleep logic subunit 2130 with simple modifications or adjustments 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 on the lower side of the first switch unit 2300, and when the first switch unit 2300 is disposed on the upper side, the system side VM changes from the low level to the high level to exit the shipping mode, and the signal and the circuit may be modified in a simple manner according to the above embodiments, which is not described herein again.
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, which is similar to the fourth embodiment, so that the undescribed portion of the present embodiment can refer to the fourth embodiment.
Referring to fig. 19 and 20 in combination, in the present embodiment, the battery protection module 2100 further includes a first ship exit QC1, the first ship exit QC1 is electrically connected to a second ship exit QC2, and the first ship exit QC1 is used to exit the battery protection module 2100 from the ship mode, for example, the first ship exit 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 being electrically connected to the first shipping exit QC1, the second timing unit 2160 being used to put the battery protection module 2100 into shipping mode, e.g., an output of the second timing unit 2160 being 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, such as an increase, the capacitance detection unit 2220 outputs a shipping exit signal to the second shipping exit QC2, where the shipping exit signal is a low level signal, for example, the second shipping exit QC2 outputs a shipping exit signal to the first shipping exit QC1, and the first shipping exit QC1 controls the battery protection module 2100 to exit the shipping mode, such as pulling down the system VM or controlling the first switch unit 2300 to conduct, or by other means; also, while the first ship exit QC1 controls the battery protection module 2100 to exit the ship mode (when the second timing unit 2160 consumes power while in the ship mode) or shortly thereafter (when the battery protection module 2100 does not consume power while in the ship mode and the battery protection module 2100 exits the ship mode), the second timing unit 2160 also receives the ship exit signal or the signal that the second timing unit 2160 is turned on, the second timing unit 2160 performs reset timing, when the second timing unit 2160 times to the second preset time, the second timing unit 2160 outputs the ship entry signal, and the battery protection module 2100 enters the ship mode. The second preset time may be equal to or different from the first preset time, and the second preset time ranges from 2 seconds to 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 suction nozzle 122, the capacitance detecting unit 2220 detects the change, for example, decrease of the total capacitance, at this time, the capacitance detecting unit 2220 outputs another signal, for example, a high level signal, and at this time, the second timing unit 2160 and the battery protection module 2100 do not operate; when the lips contact the suction nozzle 122 again, the capacitive sensing unit 2220 generates a shipping exit signal, …, looping accordingly.
In this embodiment, when the shipping mode is that the first switch unit 2300 is turned off or the first switch unit 2300 is turned off and the battery protection module 2100 does not consume power, the second timer unit 2160 can continue to consume power, so that the second timer unit 2160 can receive the shipping exit signal, and then the second timer unit 2160 performs the 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 do not consume power, the second timing unit 2160 does not consume power, that is, the battery protection module 2100 does not start the reset timing of the second timing unit 2160 after receiving the shipping exit signal, at this time, the second timing unit 2160 needs to wait for a delay time, which is the time from when the battery protection module 2100 receives the shipping exit signal to when the battery protection module exits from the shipping mode (the second timing unit 2160 is powered on), the delay time is generally in the order of microseconds, for example, 10 microseconds, 20 microseconds, 30 microseconds, 40 microseconds, 50 microseconds, and the like, and since the delay time is different from the second preset time, the delay time is generally negligible in the order of magnitude relative to the second preset time; when the battery protection module 2100 exits the shipping mode, the second timing unit 2160 starts reset timing, and when the second preset time is reached, the second timing unit 2160 generates a shipping exit signal, so that 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 this embodiment is similar to the first to fifth embodiments, so that the parts not described in this embodiment can refer to the previous embodiments, and the main difference between this embodiment and the previous embodiments 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 QR2 of the capacitance detection module 2200 is electrically connected to the first power supply end VDD1 through the first resistor R1, the second resistor R2 has the same resistance as the first resistor R1, and the second shipping entrance QR2 is in a high impedance state in a normal state. Specifically, in the present embodiment, the battery protection circuit 2000 further includes a third switching unit 2900, and the input terminal of the third switching unit 2900 is connected to the first level, where the first level is 0, that is, the ground, but the first level may not be 0 as long as it is satisfied that the voltage at the first power supply terminal VDD1 is lower than the preset threshold voltage when the third switching unit 2900 is turned on. The output terminal of the third switching unit 2900 is electrically connected to one terminal of the first resistor R1, the other terminal of the first resistor R1 is electrically connected to the power supply terminal VDD, the control terminal of the third switching unit 2900 is electrically connected to the second shipping entrance terminal QR2 of the capacitance detection module 2200, under normal conditions, the third switching unit 2900 is off, the second shipping entrance terminal QR2 is in a high impedance state, when the user's lips leave the suction nozzle, the capacitance detection module 2200 generates a shipping entrance signal, the shipping entrance signal controls the third switching unit 2900 to be turned on through the second shipping entrance terminal QR2, the branch composed of the second resistor R2, the first resistor R1 and the third switching unit 2900 is on, and since the second resistor R2 and the first resistor R1 have the same resistance, the second resistor R2 and the first resistor R1 divide the battery voltage, so that the voltage signal received at the first power supply terminal 1 is reduced, and the battery voltage is reduced to half in this embodiment, typically, half of the battery voltage will be below the predetermined threshold voltage for deep discharge settings, typically, battery 2400 is supplied with a voltage in the range of 2.8V to 4.2V, the threshold voltage for deep discharge is typically 2.8V, and half of battery 2400 is supplied with a voltage in the range of 1.4V to 2.1V below the threshold voltage for deep discharge. Therefore, when the third switching 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 switching unit 2300 to be turned off through the switch control terminal CO/DO, so that the battery protection module 2100 enters the shipping mode, and the battery protection module 2100 is in the 0 power consumption mode in the shipping 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 switching unit 2900 may also be a PMOS transistor. In addition, 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 switching unit 2900 is turned on to enable the first power supply terminal VDD to be lower than the threshold voltage. In this embodiment, the third switching unit 2900 is located outside the capacitance detection module 2200, but the application is not limited thereto, and in other embodiments of the 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, and after the capacitance detection module 2200 detects that the voltage of the system terminal VM is pulled up, the capacitance detection module 2200 controls the third switching unit 2900 to turn off through the second shipping entrance 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, and thus, the loop can be prevented from consuming power all the time in the shipping mode, and power consumption can be reduced. In this embodiment, the capacitance detection module 2200 detects the voltage of the system terminal VM through the second ship exit terminal QC 2.
In this embodiment, when the user touches the nozzle with his lips, the capacitance detection unit 2220 generates a shipping exit signal and outputs the shipping exit signal to the second shipping exit QC2, where the shipping exit signal is a low level signal, the second shipping exit QC2 outputs the shipping exit signal to the system VM, and the system VM is pulled from a high level to a low level, thereby controlling the battery protection module 2100 to exit the shipping 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, which is similar to the first to sixth embodiments, so that the undescribed portions of this embodiment can refer to the previous embodiments, and the main difference between this 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 called a battery protection chip, at this time, the first power supply terminal VDD1 and the second power supply terminal VDD2 may be made into the same power supply terminal, which is a power supply pin, and the first power ground terminal GND1 and the second power ground terminal GND2 may be made into the same power ground terminal, which is a power ground pin, so that the number of pins of the system on chip 2500 can be reduced. Moreover, first shipping exit QC1, second shipping exit QC2 are the both ends of same electric connection line, and first shipping entering QR1, second shipping entering QR2 can be the both ends of same electric connection line, and first shipping end QY1, second shipping end QY2 also are the both ends of same connecting wire, and these all are the inside link of system on chip 2500, do not need to set up the pin alone. In other embodiments of the present application, the first shipping entrance end QR1, the second shipping entrance end QR2, the first shipping exit end QC1, the system end VM, the second shipping exit end QC2, the first shipping end QY1, and the second shipping end QY2 may not require a lead, and the two components are directly connected, which is also 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 system on chip 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 a MOS. However, the present application is not limited thereto, and in other embodiments of the present application, the number of the switching control pins CO/DO is two, the first switching unit 2300 includes a charging MOS and a discharging MOS, the two switching control pins CO/DO are respectively connected to a control terminal of the charging MOS and a control terminal of the discharging MOS, the charging MOS and the discharging MOS are connected in series, the charging MOS is electrically connected to the system circuit 131, the charging MOS is electrically connected to the discharging MOS, and the discharging MOS is electrically connected to the negative electrode of the battery 2400.
Thus, the system-on-chip 2500 of this embodiment typically requires five or six pins: the system on chip 2500 of the present embodiment may implement capacitance detection, entering or exiting a shipping mode through five or six pins, and the system on chip 2500 is very simple, which greatly reduces the number of pins compared to the scheme of two separate systems on chip 2500 of the eighth embodiment later. The system on chip 2500 of this embodiment is not limited to five or six pins, and in other embodiments of the present application, the system on chip 2500 may further have pins for implementing other functions in order to implement other functions. In addition, in the present embodiment, the first switch unit 2300 is disposed downward, but the present invention is not limited thereto, and in another embodiment of the present invention, the first switch unit 2300 may be disposed upward, and in this case, the first end of the first switch unit 2300 is electrically connected to the positive electrode of the battery 2400.
In the present 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 or may not be mounted on another printed circuit board. In the present embodiment, the printed circuit board and battery 2400 are provided separately and not bound together. 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 gluing the two together with a tape, which may save space. In addition, in other embodiments of the present application, the system on chip 2500 and the first switch 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, which is similar to the seventh embodiment, so that the undescribed portions of the present embodiment 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 embedded.
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 terminal of the first switch unit 2300 is electrically connected to the power ground pin, the second terminal of the first switch unit 2300 is electrically connected to the system pin VM, the system pin VM is electrically connected to the system circuit 131, and the control terminal of the first switch unit 2300 is electrically connected to the logic control unit 2110. In this embodiment, the first switch unit 2300 is embedded, so that 1-2 switch 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 switch unit 2300 may also be disposed on top, where the first end of the first switch unit 2300 is electrically connected to the power pin.
In this embodiment, the system-on-chip 2500 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 is mounted on one printed circuit board and the reference capacitor C2 may or may not be mounted on another printed circuit board. In the present embodiment, the printed circuit board and the battery 2400 are provided separately, and are not bound together. 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 with an adhesive, so that space may be saved.
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, which is similar to the seventh embodiment or the eighth embodiment, so that parts not described in this embodiment can refer to the previous embodiments, and the main difference between this embodiment and the seventh embodiment and the eighth 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 this embodiment, the battery protection module 2100 is located on a first system-on-chip 2610, that is, the battery protection module 2100 is located on a first chip, and the capacitance detection module 2200 is located on a second system-on-chip 2620, that is, the capacitance detection module 2200 is located on a second chip. The battery protection module 2100 includes a first power supply pin VDD1 (a first power supply terminal), a first power ground pin GND1 (a first power ground terminal), a system pin VM (a system terminal VM), an over-discharge voltage protection unit 2140, a discharge over-current protection unit, a reference voltage generation unit, a logic control unit 2110, 1-2 switch control pins CO/DO (switch control terminals CO/DO), and a first ship entry pin QR1 (a first ship entry terminal QR 1).
In this embodiment, the capacitance detection module 2200 is located on the second system-on-chip 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 shipping entrance pin QR2 (second shipping entrance end), and a second shipping exit pin QC2 (second shipping exit end).
In this embodiment, the second power supply pin VDD2 and the second power ground pin GND2 are electrically connected to the positive electrode and the negative electrode of the battery 2400, the capacitance detection pin CJ is electrically connected to the detection electrode 2210, the second shipping entrance pin QR2 is electrically connected to the first shipping entrance pin QR1, and the second shipping 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 shipping exit pin QC1, the first shipping exit pin QC1 is electrically connected to a second shipping exit pin QC2, the first shipping exit pin QC1 is electrically connected to one of the inputs of the first or gate 2122 via the 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, because two soc, that is, two chips are provided, when one of the soc is damaged, only the corresponding soc needs to be replaced, and the entire soc does not need to be replaced as in the sixth embodiment or the seventh embodiment, thereby saving the cost. In this embodiment, the first system-on-chip 2610 and the second system-on-chip 2620 may or may not be packaged together.
In addition, in other embodiments of the present application, the second system-on-chip 2620 may also not include the second ship entry pin QR2 and the second ship exit pin QC2, where the second system-on-chip 2620 includes the second ship pin QY2, and where the second system-on-chip 2620 may use an existing general capacitive sensing chip. The first system-on-chip 2610 may also not include the first ship-in pin QR1 and instead may include a first ship-in pin QY1, the first ship-in pin QY1 being electrically connected to the second ship-in pin QY 2. When the second shipping pin QY2 outputs different electrical signals due to the change in capacitance, such as a high level or a low level, which are the shipping entry signal or the shipping exit signal, the first system-on-chip 2610 can enter or exit the shipping mode according to the signals received by the shipping pin after the first shipping pin QY1 receives the signals. In addition, in other embodiments of the present application, the first shipping pin QY1 may be triggered only by the shipping exit signal to enable the first system-on-chip 2610 to exit the shipping mode, and after a second preset time after exiting the shipping mode, the first system-on-chip 2610 reenters the shipping mode, and at this time, the first shipping pin QY1 does not need to detect another signal output by the capacitance detection unit 2220, where the another signal corresponds to a 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 ship entry pin QR1, and the above-described function may be implemented through the first power supply pin VDD 1.
In addition, in other embodiments of the present application, the second system-on-chip 2620 may not include the second ship entry pin QR2, where the second system-on-chip 2620 includes the second ship exit pin QC2, the first system-on-chip 2610 includes the first ship exit pin QC1, the first ship exit pin QC1 is electrically connected to the second ship exit pin QC2, the first ship exit pin QC1 is electrically connected to the sleep logic subunit 2130, the first ship 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 nozzle 122, the capacitive detection unit 2220 generates a shipping exit signal, the shipping exit signal is output to the first shipping exit pin QC1 through the second shipping exit pin QC2, the first on-chip system 2610 exits the shipping mode, the second timing unit 2160 generates a shipping entry signal after a second preset time after exiting the shipping mode or after the second timing unit 2160 receives the second preset time of the shipping exit signal, the first on-chip system 2610 reenters the shipping mode, and at this time, the first shipping exit QC pin 1 does not need to detect another signal output by the capacitive detection unit 2220, which corresponds to a signal when the lips of the user leave the nozzle 122.
In addition, in other embodiments of the present 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 fabricated 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 fabricated on a 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 fabricated on the system-on-chip 2500, and in this case, the capacitance detection module 2200 and the battery protection module 2100 may be fabricated on one printed circuit board or two printed circuit boards.
In this embodiment, the first switch unit 2300 is located outside the first system-on-chip 2610, that is, the first switch unit 2300 is not located on the first system-on-chip 2610, 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 invention is not limited to this, and in another embodiment of the present invention, the first switch unit 2300 may be located on the first system-on-chip 2610, and in this case, both the battery protection module 2100 and the first switch unit 2300 may be located on the first system-on-chip 2610. In the present embodiment, the first switching unit 2300 is disposed downward, that is, a first end of the first switching unit 2300 is electrically connected to a 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 disposed on top of the battery, 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, the first system on chip 2610, the second system on chip 2620, and the first switch unit 2300 are located on the same printed circuit board, and the printed circuit board and the battery 2400 are bound together, so that space is saved. 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 not be bound together. 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 and the first switch unit 2300 are located, the first printed circuit board being bound or unbound to the battery 2400, and a second printed circuit board on which the second system-on-chip 2620 is located.
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, which is similar to the first to ninth embodiments, so that the undescribed portions of the present embodiment can refer to the previous embodiments, and the main difference between the present embodiment and the previous embodiments is to further reduce power consumption.
In the foregoing embodiment, regardless of whether the battery protection module 2100 is in the shipping mode or in the normal operation mode after exiting the shipping mode, the capacitance detection module 2200 is constantly powered by the battery 2400, and the capacitance detection module 2200 is constantly in the normal operation mode, so that there is always power consumption of the capacitance detection module 2200, which is relatively small, but there is room for improvement. In this embodiment, the power consumption of the battery protection circuit 2000 is further reduced, and the service life of the battery 2400 is prolonged.
In this embodiment, when the battery protection module 2100 exits the shipping mode to be in the normal operating mode, at least part of the units of the capacitance detection module 2200 consume no power, for example, the capacitance detection unit 2220 consumes no power, preferably, the entire capacitance detection module 2200 consumes no power, that is, the entire capacitance detection module 2200 is in the 0 power consumption mode, at this time, the capacitance detection unit 2220 cannot detect the change of the capacitance, and the capacitance detection unit 2220 does not operate; when the battery protection module 2100 enters the shipping mode, the capacitance detection module 2200 recovers power supply, the subsequent capacitance detection module 2200 is in a normal operation mode, and the capacitance detection unit 2220 can normally detect a capacitance change. 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 this embodiment are not powered, even in the 0 power consumption mode, so as to further reduce the energy consumption of the battery protection circuit 2000, and further extend the usage time of the electronic cigarette, which is particularly important for disposable electronic cigarettes that cannot be charged. In this embodiment, when the system circuit 131 consumes no power in the shipping mode, the battery protection module 2100 is in the 0 power consumption mode, but it is needless to say that at least some of the cells of the battery protection module 2100 may consume no power.
Referring to fig. 25 and 26, in an embodiment of the present application, capacitance detecting module 2200 includes a second shipping exit QC2, and second shipping exit QC2 outputs a shipping exit signal when capacitance detecting module 2200 detects an increase in total capacitance, and capacitance detecting module 2200 outputs a different signal than the shipping exit signal when capacitance detecting module 2200 detects a change in total capacitance, e.g., a low or low capacitance, which is not needed in this embodiment. In this embodiment, the battery protection module 2100 includes a first shipping exit QC1, the first shipping exit QC1 is electrically connected to a second shipping exit QC2, the first shipping exit QC1 is used to control the battery protection module 2100 to exit the shipping mode, meanwhile, the first shipping exit QC1 is also electrically connected to a preceding second timing unit 2160, the second timing unit 2160 is used to generate a shipping entry signal and output the signal to enable the battery protection module 2100 to enter the shipping mode after a second preset time, and the second timing unit 2160 is also electrically connected to the capacitance detection module 2200. In this embodiment, when capacitor detecting unit 2220 outputs a shipping exit signal to first shipping exit QC1 via second shipping exit QC2, battery protection module 2100 exits shipping mode while battery protection module 2100 or capacitor detecting module 2200 controls capacitor detecting module 2200 to consume no power for at least some of the units, preferably capacitor detecting module 2200 is in a 0-power-consuming mode; when the second timing unit 2160 of the battery protection module 2100 times the second preset time, the second timing unit 2160 generates a shipping entry signal, the battery protection module 2100 enters a shipping mode and outputs a wake-up signal to the capacitance detection module 2200, and the capacitance detection module 2200 wakes up to be in a normal operation mode. In this embodiment, the capacitance detection module 2200 includes a second energy consumption end NH2, the battery protection module 2100 includes a first energy consumption end NH1, the first energy consumption end NH1 is electrically connected to the second energy consumption end NH2 and the second timing unit 2160, respectively, and the wake-up signal is the same as the ship entry signal, or the wake-up signal is a signal converted from the ship entry signal. In addition, in other embodiments of the present application, the battery protection circuit 2000 further includes a second switch unit, where the second switch unit is used to control whether the battery 2400 supplies power to the capacitance detection module 2200, for example, a first end of the second switch unit is electrically connected to a positive electrode or a negative electrode of the battery 2400, a second end of the second switch unit is correspondingly electrically connected to the second power supply terminal VDD2 or the second power ground terminal GND2, and the second switch unit is controlled by the battery protection module 2100 and/or the capacitance detection module 2200. The second switch unit may be built in the capacitance detection module 2200 or externally disposed outside the capacitance detection module 2200. In addition, in other embodiments of the present application, the first energy consumption terminal NH1 and the first ship exit terminal QC1 may be the same port having an input/output (I/O) function, and the second energy consumption terminal NH2 and the second ship exit terminal QC2 may be the same port having an input/output (I/O) function, which may save ports and connection lines.
In addition, in another embodiment of the present application, capacitance detection module 2200 includes a second ship exit QC2 and a second ship entry QR2, and when capacitance detection module 2200 detects a total capacitance change, such as an increase, second ship exit QC2 outputs a ship exit signal, and when capacitance detection module 2200 detects a total capacitance change, such as a decrease or a decrease, capacitance detection module 2200 outputs a signal different from the ship exit signal, which is not required in this embodiment. In this 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 ship entry end QR2, respectively. In this embodiment, the battery protection module 2100 includes a first ship exit QC1 or a system end VM, the battery protection module 2100 further includes a first ship entry QR1, the first ship exit QC1 or the system end VM is electrically connected to a second ship exit QC2, and the first ship entry QR1 is electrically connected to a second ship entry QR 2. When the capacitor detection unit 2220 generates a ship exit signal to the first ship exit mode via the second ship exit mode, the battery protection module 2100 exits the ship mode and the units of the capacitor detection module 2200 except the first timing unit 2230 consume at least part of no power, that is, the first timing unit 2230 continues to consume power, and other units of the capacitor detection module 2200 consume no power or all of no power, for example, the capacitor detection unit 2220 consumes no power, when the first timing unit 2230 times a first preset time, the first timing unit 2230 generates a ship entry signal and a wake-up signal respectively, the wake-up signal is the same as the ship entry signal, or the wake-up signal is a signal derived from the conversion of the ship entry signal, the ship entry signal reaches the first ship entry end QR1 via the second ship entry end QR2, the battery protection module 2100 enters the ship mode and the capacitor detection module 2200 is acted by the wake-up signal, other units of the capacitance detection module 2200 are powered back, and the capacitance detection module 2200 is in a normal operation mode. In addition, in other embodiments of the present application, battery protection circuit 2000 further includes a second switching unit for controlling whether battery 2400 supplies power to capacitance detecting module 2200 except for first timing unit 2230. In this embodiment, the second switch unit is built in the capacitance detection module 2200.
Eleventh embodiment
Referring to fig. 27, fig. 27 is a structural diagram of an electronic cigarette according to an eleventh embodiment of the present application, and this embodiment is similar to the first to tenth embodiments, so that the undescribed portions of this embodiment can refer to the previous embodiment.
Referring to fig. 27, in the present embodiment, the disposable electronic cigarette includes a cigarette rod 110 and a cartridge 120, the cigarette rod 110 and the cartridge 120 are connected in an unreleasable manner, that is, the cartridge 120 is not replaceable, and the disposable electronic cigarette can be discarded or recycled after the cartridge 120 is used up, where the unreleasable electrical connection means that if the cartridge 120 is violently removed from the cigarette rod 110, the disposable electronic cigarette may cause electrical damage or physical damage, for example, a lead in the cigarette rod 110 is electrically disconnected from the cartridge 120.
In the present embodiment, the smoke rod 110 includes a smoke rod housing 111, a battery 2400, a battery protection module 2100, a capacitance detection module 2200, a system circuit 131, an airflow sensor 133 (see the previous figures in combination), and the like. The cigarette rod 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 in the cigarette rod 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 disposable electronic cigarette is used, the cigarette rod housing 111 is not provided with a charging interface, and is not provided with a charging management circuit, so that the cost can be reduced, and thus the battery 2400 cannot be charged after being used up, that is, when one of the tobacco tar and the battery 2400 is used up, the disposable electronic cigarette cannot be used any more, and a user may discard the electronic cigarette or recycle the electronic cigarette.
In this embodiment, the upper end of the smoke rod housing 111 is opened, that is, the smoke rod housing 111 does not have the setting of depressed slot, still be equipped with the gas pocket on the smoke rod housing 111, the gas pocket is used for the air of intercommunication smoke rod housing 111 inside and outside, thereby can be more smooth and easy when the user smokes, airflow sensor 133 also can detect the airflow flow when the user smokes, because need not set up the interface that charges on the smoke rod housing 111, thereby smoke rod housing 111 is closed setting except that gas pocket and open upper end, be favorable to the pleasing to the eye of smoke rod housing 111 like this, closed setting here is mainly for the setting that does not charge the interface.
In this embodiment, the cartridge 120 includes a mouthpiece 122, a cartridge body 121, an atomizer 132, and tobacco tar, wherein the lower end of the cartridge body 121 is connected to the upper end of the tobacco rod 110 in a snap-fit or fixed manner, i.e. the cartridge 120 cannot be removed from the tobacco rod 110 under normal conditions, and the lower portion of the cartridge 120 is connected to the open end of the tobacco rod housing 111. The upper end of the cartridge body 121 is connected to a suction nozzle 122, and a detection electrode 2210 is disposed in the suction nozzle 122. In this embodiment, the cartridge body 121 is hollow, and has an atomizer 132 and tobacco tar disposed therein, and the atomizer 132 is at least partially immersed in the tobacco tar, so that the atomizer 132 can atomize the tobacco tar during operation. The atomizer 132 is electrically connected with the system circuit 131 in the tobacco rod 110 through a wire, and the system circuit 131 controls whether the atomizer 132 works and the power, so as to control the size of 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 to the suction nozzle 122, the lower end of the cartridge housing 123 is connected to the bottom plate 134, for example, the bottom plate 134 may prevent the smoke from leaking out of the bottom of the cartridge housing 123, the bottom plate 134 is provided with an atomizer 132, at least a portion of the atomizer 132 is located in the cartridge housing 123, the bottom plate 134 is provided with two connection pins of the atomizer 132, and the two connection pins are electrically connected to 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 disposed at the suction nozzle 122. The detecting electrode 2210 is the same as the first embodiment, and is not described herein again. In this embodiment, the cartridge 120 further includes a first electrical connector 126, the first electrical connector 126 is electrically connected to the detection electrode 2210 through a first intermediate connector 127, the first intermediate connector 127 is the same as the first embodiment, and details are not repeated herein, in this embodiment, the first electrical connector 126 is similar to the first embodiment, the difference of the first electrical connector is that the first electrical connector is a connection pin, the connection pin is welded to one end of the second intermediate connector 137, the other end of the second intermediate connector 137 is connected to the proximity detection end, in this embodiment, the second intermediate connector 137 is a wire or a lead wire, etc.
In this embodiment, since the disposable electronic cigarette is a disposable electronic cigarette, the disposable electronic cigarette cannot charge the battery 2400, and therefore it is particularly important that the battery 2400 can automatically enter a shipping mode during the interval time between transportation, storage and non-smoking, because the tobacco tar of the disposable electronic cigarette is constant, when the battery 2400 is dead due to long-time transportation, storage or improper use, it is likely that the tobacco tar of the disposable electronic cigarette is still more, and since the disposable electronic cigarette is dead, the disposable electronic cigarette cannot be charged at this time, and therefore the disposable electronic cigarette can only be discarded or recycled, which causes waste. In this embodiment, when the disposable electronic cigarette is in the gap time of transportation, storage or no smoking, the disposable electronic cigarette enters a shipping mode, the energy consumption of the battery 2400 is greatly reduced, the probability that the disposable electronic cigarette battery 2400 is used up and the tobacco tar still exists is greatly reduced, the waste is reduced, the misunderstanding of the user on the quality of the enterprise product is reduced, the electronic cigarette in this embodiment completely accords with the use habit of the user, and the cost is also lower.
Twelfth embodiment
Referring to fig. 28, fig. 28 is a structural diagram of an electronic cigarette according to a twelfth embodiment of the present application, and this embodiment is similar to the first to eleventh embodiments, so that the undescribed portions of this embodiment can refer to the previous embodiment, and the main difference between this embodiment and the previous embodiment is that the suction nozzle 122 includes a first metal housing 228.
In order to upgrade the electronic cigarette, in the embodiment, the mouthpiece 122 of the electronic cigarette includes the first metal housing 228, that is, the outer surface of the mouthpiece 122 is made of metal, and the part (body part) of the mouthpiece 122 inside the first metal housing 228 may be made of non-metal material, or may be made of metal material, so that the first metal housing 228 is visible to the user from the outside, which can upgrade the electronic cigarette.
When the suction nozzle 122 includes the first metal housing 228, the solution that the detection electrode 2210 is embedded in the suction nozzle 122 or attached to the inner surface of the metal nozzle 122 is no longer applicable, and the first metal housing 228 shields the relevant signal. To overcome this problem, in the present embodiment, the first metal shell 228 is provided with a first opening, the first opening is in an inverted U shape, an L shape, a long strip shape, a ring shape, a spiral shape, etc., and when the first metal shell 228 is in a ring shape, the first metal shell is divided into two parts; when the suction nozzle is formed in an inverted U-shape, L-shape or elongated shape, a relatively long portion of the 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 have the first opening, and the first metal housing 228 is recessed to form a groove, and the shape of the groove may be a ring, a U, an L, a long strip, and the like. In the present embodiment, the suction nozzle 122 further includes a non-shielding first shielding portion 229, the non-shielding first shielding portion 229 is located at the first opening or the groove, and the detection electrode 2210 is attached to an inner surface of the first shielding portion 229. In addition, in other embodiments of the present application, the detection electrode 2210 is embedded within the first shielding portion 229, i.e., the detection electrode 2210 is located between the inner surface and the outer surface of the first shielding portion 229. In this embodiment, the first shielding portion 229 is made of food grade material.
In the 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, the first metal housing 228 is provided with a first opening or a groove, the non-shielding first shielding portion 229 is filled in the groove, and the detection electrode 2210 is disposed inside or inside the first shielding portion 229, so that when the lips contact the suction nozzle 122, the change of the capacitance can be detected by the capacitance detection unit 2220, so as to enable the electronic cigarette to enter or exit the shipping mode.
Moreover, in the present embodiment, the non-shielding first shielding portion 229 can 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 as to reduce the monotonicity of the first metal housing 228 of the suction nozzle 122 and enhance the aesthetic feeling of the suction nozzle 122.
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, which is similar to the first to twelfth embodiments, so that the undescribed parts of the present embodiment can refer to the previous embodiments, and the main difference between the present embodiment and the previous embodiments is that the detecting electrode 2210 is located on the tobacco rod 110.
In this embodiment, the tobacco rod 110 may be a disposable tobacco rod 110, or may be a reusable tobacco rod 110. The smoke stick 110 includes a smoke stick housing 111, a battery 2400, a battery protection module 2100, a capacitance detection module 2200, a system circuit 131, and an airflow sensor 133. The cigarette rod 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 in the cigarette rod housing 111. Battery protection module 2100 is electrically connected to battery 2400, battery protection module 2100 is electrically connected to system circuit 131, system circuit 131 is electrically connected to airflow sensor 133 and atomizer 132 in cartridge 120, battery protection module 2100 controls whether battery 2400 supplies power to system circuit 131, and capacitance detection module 2200 is electrically connected to battery protection module 2100.
In this embodiment, the cigarette rod case 111 is a plastic case, the detecting electrode 2210 is installed on the inner side of the outer surface of the cigarette rod case 111, that is, the detecting electrode 2210 is embedded in the cigarette rod case 111 or the detecting electrode 2210 is attached to the inner surface of the cigarette rod case 111 or the detecting electrode 2210 is located on the inner side of the cigarette rod case 111, and the detecting electrode 2210 is electrically connected to the capacitance detecting terminal CJ. In this embodiment, the detecting electrode 2210 is embedded in the cigarette rod housing 111, the detecting electrode 2210 is in a strip shape, and the detecting electrode 2210 extends along the central axis direction of the cigarette rod 110, i.e. along the length direction of the cigarette rod 110. In this embodiment, the inner surface of the sidewall of the cigarette rod case 111 is provided with an opening corresponding to the detecting electrode 2210, and one end of the second intermediate connecting member 137 passes through the opening to be electrically connected to the detecting electrode 2210, and the other end is electrically connected to the capacitance detecting terminal CJ.
In this embodiment, the detecting electrode 2210 extends from one end (lower end) of the cigarette rod 110 away from the cartridge 120 to the other end (upper end) of the cigarette rod 110, i.e., the length of the detecting electrode 2210 is equal or approximately equal to the length of the cigarette rod 110. In addition, in other embodiments of the present application, the length of the detecting electrode 2210 is smaller than the length of the cigarette rod 110, and generally, when the user holds the cigarette rod 110, the user will generally hold the middle portion of the cigarette rod 110 or the lower portion of the cigarette rod 110, so that the end (upper end) of the cigarette rod 110 near the cigarette cartridge 120 may not be provided with the detecting electrode 2210, and the detecting electrode 2210 extends from the lower end of the cigarette rod 110 to the middle portion of the cigarette rod 110, which can prevent the electronic cigarette from not exiting the shipping mode when the user holds the cigarette rod 110. In this embodiment, the number of the detecting electrodes 2210 may be one or more, and when there are a plurality of detecting electrodes 2210, the detecting electrodes 2210 are disposed in parallel and electrically connected to the capacitance detecting end CJ together, the detecting electrodes 2210 are uniformly arranged along the circumferential direction of the cigarette rod 110, and the length of the detecting electrodes 2210 and the position of the cigarette rod 110 in the axial direction are the same, so as to reduce the probability that the capacitance change is not triggered when the user holds the cigarette rod 110. In addition, in other embodiments of the present application, the number of the detecting electrodes 2210 is plural, the plural detecting electrodes 2210 are arranged along the central axis direction of the cigarette rod 110, preferably uniformly arranged, and two adjacent detecting electrodes 2210, which are shorter than the length of the cigarette rod 110, cover both ends of the cigarette rod 110, that is, one detecting electrode 2210 extends from the lower end of the cigarette rod 110 to the upper end, and the other adjacent detecting electrode 2210 extends from the upper end of the cigarette rod 110 to the lower end, so that the defect that the detecting electrode 2210 is shorter and cannot completely cover the cigarette rod 110 can be overcome, and the probability that the capacitance change is not triggered when the user holds the cigarette rod 110 by hand can be further prevented; in addition, in the present embodiment, the length of the detection electrode 2210 is greater than or equal to half of the length of the tobacco rod 110, so that two adjacent detection electrodes 2210 may partially overlap at the middle position of the tobacco rod 110.
In other embodiments of the present application, detection electrode 2210 is not limited to a strip shape, but may have other shapes. For example, in other embodiments of the present application, the sensing electrode 2210 extends along the central axis direction of the cigarette rod 110, the sensing electrode 2210 is U-shaped, the sensing electrode 2210 extends from a first side of the cigarette rod housing 111 to a second side of the cigarette rod housing 111, the first side and the second side being opposite to each other; alternatively, the detection electrode 2210 is spiral-shaped, and the central axis of the detection electrode 2210 is parallel to or coincides with the central axis of the tobacco rod 110.
In the present embodiment, the tobacco rod 110 is flat, and the tobacco rod 110 generally comprises four side walls except for the upper end near the cartridge 120 and the lower end far from the cartridge 120, and the four side walls have the same length in the length direction of the tobacco rod 110, wherein two opposite side walls are wider and are called as a third wide side wall and a fourth wide side wall, and the other two side walls are narrower and are called as a third narrow side wall and a fourth narrow side wall. 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 positioned on the wide side wall is greater than or equal to the width of the detection electrode 2210 positioned on the narrow side wall, and the width of the detection electrode 2210 positioned in the middle of the wide side wall is the widest, which is a position easily touched by a user, and is relatively easy to cause capacitance change. Generally speaking, when the user holds the outer wall of the cigarette rod 110 by hand, the user will typically hold three side walls of the outer wall of the cigarette rod 110, and typically hold two narrow side walls and one wide side wall of the three side walls at the same time, and it is preferable that the sensing electrode 2210 is located inside or inner surface of the third narrow side wall and/or the fourth narrow side wall because it is uncertain whether the third wide side wall or the fourth wide side wall is held.
In this embodiment, when the user holds the cigarette rod 110 with a hand, one or more of the detection electrodes 2210 and the hand form a capacitance, so that the capacitance detection unit 2220 can detect the total capacitance change, the capacitance detection unit 2220 sends a shipping exit signal to the battery protection module 2100, and the battery protection module 2100 exits the shipping mode; when the user releases the tobacco rod 110, the capacitance detection unit 2220 may detect that the total capacitance changes again, the capacitance detection unit 2220 sends a shipping entry signal to the battery protection module 2100, and the battery protection module 2100 enters a shipping mode. This embodiment does not frequently enter and exit the ship mode with respect to the embodiment where sensing electrode 2210 is located at nozzle 122, and the power consumption is higher with respect to the embodiment where sensing electrode 2210 is located at nozzle 122, but the power consumption is still low. The manner of passing the timer in the previous embodiment is not applicable in this embodiment. The detecting electrode 2210 of this embodiment is located in the cigarette rod, and the connection between the detecting electrode 2210 and the capacitance detecting module is relatively simple.
In this embodiment, the detection electrode 2210 is located inside the smoke rod 110, the detection electrode 2210 is electrically connected to the capacitance detection module 2200, and the detection electrode 2210 detects whether the palm of the user's hand contacts the smoke rod housing 111, thereby controlling 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 are used to detect whether the palm of the user touches the cigarette rod housing 111, and can also be used to implement other functions of the electronic cigarette, such as counting the usage frequency of the electronic cigarette, counting the usage duration and the standby duration of the electronic cigarette, and the like.
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, which is similar to the thirteenth embodiment, so that the undescribed parts of the present embodiment can refer to the previous embodiments, 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 rod housing 111 of the electronic cigarette on the market is generally a metal housing, and the solution that the detection electrode 2210 is embedded in the rod housing 111 or attached to the inner surface of the rod housing 111 is not suitable. To overcome this problem, in the present embodiment, the cigarette rod casing 111 is provided with an opening, and the opening is U-shaped, long strip-shaped, spiral-shaped, L-shaped, or the like. When the cigarette rod is U-shaped, L-shaped or long-strip-shaped, the part with a longer opening extends along the direction of the central shaft of the cigarette rod shell 111; when helical, the central axis of the helix is now the same as the central axis of the tobacco rod housing 111. In this embodiment, the smoke rod 110 further includes a non-shielding second shielding portion 219, the non-shielding second shielding portion 219 is located at the opening, the second shielding portion 219 can be mounted on the smoke rod housing 111 by clipping, bonding or other methods, 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 also be attached to the inner surface of the second shielding part 219. In the present embodiment, the second shielding portion 219 is made of a plastic material, glass, or the like. In this embodiment, the inner surface of the second shielding portion 219 is provided with an opening corresponding to the detection electrode 2210, one end of the second intermediate connecting member 137 is electrically connected to the detection electrode 2210 through the opening, the other end of the second intermediate connecting member 137 is electrically connected to the capacitance detection end CJ, or the detection electrode 2210 is attached to the inner surface of the smoke rod housing 111 or located inside the smoke rod housing 111, where the detection electrode 2210 can be directly electrically connected to 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.
Moreover, in this embodiment, the non-metal second shielding portion 219 can be designed for decoration, so that the monotonicity of the metal shell of the tobacco rod 110 can be reduced, and the aesthetic feeling of the tobacco rod 110 can 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, which is similar to the first to fourteenth embodiments, so that the undescribed portions of the present embodiment can refer to the previous embodiments, and the main difference between the present embodiment and the previous embodiments is how to exit 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, and when the proximity detection module 2800 or the proximity unit 2810 is damaged, the proximity detection module 2800 does not issue a shipping exit signal even if the user's lips contact or approach the mouthpiece 122 or the user's hand contacts or approaches the cigarette rod 110, and the electronic cigarette does not exit the shipping mode. When a user sucks through the suction nozzle 122, the first switch unit 2300 is turned off in the shipping mode, and the system circuit 131, the airflow sensor 133, and the atomizer 132 are not powered on, so that no smoke is generated, that is, no smoke is generated when the user sucks with force, and the user thinks that the electronic cigarette is damaged and only can be forced to discard the electronic cigarette or replace one cartridge 120, but for the disposable electronic cigarette, the user can only discard the electronic cigarette because the cartridge 120 cannot be replaced.
In order to solve the above problem, in the present embodiment, referring to fig. 31, a system terminal VM (pin), a first shipping exit terminal QC1 (pin), a first shipping exit terminal QY1 (pin), a second shipping exit terminal QC2 (pin) or a second shipping exit terminal QY2 (pin) of the proximity detection module 2800 is connected to a push-button switch 2700. Specifically, the system terminal VM (pin), the first shipping exit terminal QC1 (pin), the first shipping end QY1 (pin), the second shipping exit terminal QC2 (pin) or the second shipping end QY2 (pin) of the proximity detection module 2800 are connected to one end of the push switch 2700, and the other end of the push 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 shipping mode. When the push button switch 2700 is pressed, both ends of the push button switch 2700 are short-circuited, and when the push button switch 2700 is not pressed, both ends of the push button switch 2700 are open. In this embodiment, the cigarette rod housing 111 is further provided with a fine hole, the fine hole corresponds 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 the button switch 2700 to be pressed down through the fine hole of the cigarette rod housing 111 by a fine needle at this time, two ends of the button switch 2700 are short-circuited, the battery protection module 2100 exits from the shipping mode, the electronic cigarette operates in the normal operation mode, when the user releases his hand, two ends of the button switch 2700 are disconnected, and the battery protection module 2100 cannot receive a shipping entering signal because the proximity detection module 2800 or the proximity unit 2810 is damaged, so that the electronic cigarette still maintains in the normal operation mode, and the electronic cigarette can normally operate. In addition, in other embodiments of the present application, battery protection module 2100 may be further configured such that after button switch 2700 is pressed to exit battery protection module 2100 from shipping mode, battery protection module 2100 does not enter shipping mode. Moreover, because the push button switch 2700 is located within the cigarette rod housing 111, the push button switch 2700 cannot be easily accidentally activated.
In one implementation of this embodiment, the first switch unit 2300 is placed downwards, one end of the push button switch 2700 is electrically connected to the system terminal VM, and the other end of the push button switch 2700 is grounded, for example, to the negative terminal of the battery 2400 or the first power ground terminal GND1, where the push button switch 2700 is not located on the system on chip 2500. When the battery protection module 2100 is in the ship mode, the system terminal VM is pulled up to a high level, and when a user presses the button switch 2700 through a fine hole by a fine pin or the like, the system terminal VM is grounded and pulled down to a low level, so that the battery protection module 2100 exits the ship mode.
In addition, in another implementation manner of this embodiment, the first switch unit 2300 is disposed on the upper portion, one end of the push button switch 2700 is electrically connected to the system terminal VM, and the other end of the push button switch 2700 is electrically connected to a high-level signal, for example, the positive electrode of the battery 2400 or the first power supply terminal VDD1, where the push button switch 2700 is not located on the system-on-chip 2500. When the battery protection module 2100 is in the ship mode, the system terminal VM is pulled down to a low level, and when a user presses the button switch 2700 through a fine hole by a fine needle or the like, the system terminal VM is pulled up to a high level, so that the battery protection module 2100 exits the ship mode.
In addition, in other embodiments of the present application, when the touch detection module or the touch unit in the sixteenth embodiment later is damaged, or when the position detection module or the position unit in the seventeenth embodiment is damaged, the ship mode may be exited with reference to the above description.
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, which is similar to the first to fifteenth embodiments, and therefore the non-described portions of the present embodiment can refer to the previous embodiments, and the main difference between the present embodiment and the previous embodiments 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, the touch sensor is, for example, a capacitive touch sensor, a resistive touch sensor, an infrared touch sensor, an ultrasonic touch sensor, and the like, and the specific model and structure of the touch sensor are conventional technologies in the art, and are not described herein again. In this embodiment, the touch detection module 3200 is electrically connected to the touch unit 3210 and the battery protection module 2100, and the touch unit 3210 is at least partially located in the suction nozzle 122, so that the touch unit 3210 is not visible to the user from the outer surface of the electronic cigarette. In the present embodiment, the touch unit 3210 is embedded in the cigarette rod housing 111 or the mouthpiece 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 appreciate that proximity detection technology generally includes touch detection technology, which is a particular manifestation of proximity detection technology. The touch detection approach generally requires that the user's body be in contact with a surface of the electronic device, such as the outer surface of the mouthpiece or the outer surface of the cigarette rod.
In this embodiment, when the hand or the lip of the user contacts the outer surface of the cigarette rod 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 shipping exit signal to the battery protection module 2100, and after the battery protection module 2100 receives the shipping exit signal, the battery protection module 2100 exits the shipping mode and enters the normal operation mode. When the user's hand or lips leave the cigarette rod 110 or the touch unit 3210 of the mouthpiece 122, the touch detection module 3200 sends a shipping entrance signal to the battery protection module 2100, and the battery protection module 2100 enters a shipping mode. As in the previous embodiment, 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 a portion of an outer surface of the mouthpiece or an outer surface of the tobacco rod housing is the touch unit, and the touch unit is electrically connected to the touch detection unit.
The electronic cigarette of this embodiment is very low in the consumption of electronic cigarette when transporting for a long time, 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 use habit that the user formed for a long time 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, which is similar to the first to fifteenth embodiments, so that the undescribed portions of the present embodiment can refer to the previous embodiments, and the main difference between the present embodiment and the previous embodiments 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, the position detection module 4200 is electrically connected to the battery protection module 2100, the position detection module 4200 is configured to detect whether the electronic cigarette is in a use state, for example, whether the electronic cigarette is in a use state is determined by detecting whether the electronic cigarette moves, whether there is acceleration, whether there is speed, and the like, and the position detection module 4200 is configured to electrically connect to a position unit 4210, in this embodiment, the position unit 4210 is located in the cigarette rod 110. In this embodiment, the position unit 4210 is, for example, an acceleration sensor, and the acceleration sensor can determine whether the electronic cigarette is taken up by the user for use. Commonly used acceleration sensors include capacitive, inductive, strain gauge, piezoresistive, piezoelectric, etc. 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 position unit 4210 may also be an inclination sensor, which can detect whether the electronic cigarette is horizontally placed or has an inclination with respect to the horizontal plane, or detect the change of the tilt angle, when the electronic cigarette is horizontally placed, the position detection module 4200 may regard the electronic cigarette as being in a non-use state, when the electronic cigarette has a certain inclination angle with respect to the horizontal plane, for example, the inclination angle is greater than or equal to 30 °, the position detection module 4200 may consider that the electronic cigarette is in a use state, the tilt sensor and the position detection module 4200 determine that the electronic cigarette is in different states, and further determines whether the electronic cigarette is in a use state or a non-use state, when in the use state, the position detection module 4200 transmits a shipping exit signal to the battery protection module 2100, when in the non-use state, the position detection module 4200 transmits a ship entry signal to the battery protection module 2100. In addition, in other embodiments of the present application, the position unit 4210 may also be a gravity sensor, a displacement sensor, a light sensor, or the like, and the position detection module 4200 may determine whether the electronic cigarette is in a use state or a non-use state according to a change of gravity, a change of displacement, or a change of light, or the like. The position unit 4210 is not limited to the above-mentioned sensor, but other conventional position units in the art are within the scope of the present application as long as they can determine whether the electronic cigarette is in a use state or a non-use state. In addition, the position unit 4210 may be a combination of a plurality of sensors, so that the determination can be more accurate. In this embodiment, the position detection module 4200 includes a position detection unit and a position detection end, the position detection unit is electrically connected to the position detection end, the position detection end is electrically connected to the position unit 4210, and the position detection unit is an operation processing unit corresponding to the position unit 4210, such as an operation processing unit corresponding to the aforementioned acceleration sensor, inclination 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 changed by changing characteristics such as acceleration and speed, the position detection module 4200 sends a shipping exit signal to the battery protection module 2100, and after the battery protection module 2100 receives the shipping exit signal, the battery protection module 2100 exits the shipping mode and enters the normal operation mode. When the position detection module 4200 detects that the position of the electronic cigarette has not changed for a relatively long period of time, for example, the position detection unit detects that the position has not changed within a third predetermined time, where the third predetermined time is, for example, 5 to 30 seconds, such as 5 seconds, 10 seconds, 15 seconds, 20 seconds, 25 seconds, 30 seconds, etc., the position detection unit generates and sends a shipping entry signal to the battery protection module 2100, and the battery protection module 2100 enters a shipping mode. Similarly, the electronic cigarette of this embodiment can automatically enter or exit the shipping mode, and the power consumption of the electronic cigarette is very low when the electronic cigarette is transported, stored or not used for a long time, so that the service life of the electronic cigarette can be prolonged, the battery 2400 can be used for a long time, and the user does not need to charge frequently, so that the use convenience of the user is improved, and the use habit formed by the user for a long time is not influenced, so that the electronic cigarette is very friendly to the user.
Eighteenth embodiment
Referring to fig. 34, fig. 34 is a flowchart of a method for controlling an electronic cigarette according to an eighteenth embodiment of the present application, which is similar to the first to seventeenth embodiments, so that the undescribed portions of the present embodiment can refer to the previous embodiments.
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, the electronic cigarette state detection module includes a proximity detection module 2800, a touch detection module 3200, a position detection module 4200, and the like, the electronic cigarette further includes an electronic cigarette state detection unit, the electronic cigarette state unit includes a proximity unit 2810, a touch unit 3210, a position unit 4210, and the like, and the electronic cigarette state detection module and the electronic cigarette state unit can detect whether the electronic cigarette is approached or touched or whether the position of the electronic cigarette itself is changed, so as to determine 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, enter shipping mode or exit shipping mode, in which the first switching unit 2300 is turned off to stop the battery 2400 from supplying power to the system circuit 131.
In this embodiment, in the shipping mode, at least some of the cells 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-power consumption mode. The detection module is in a normal operating mode in the shipping mode.
In this embodiment, the method for controlling an electronic cigarette further includes:
and after the ship mode is exited, the electronic cigarette state detection module enters a 0 power consumption mode.
Therefore, after the battery protection module 2100 is shipped out of a normal working mode, the electronic cigarette state detection module is in a 0 power consumption mode, that is, the electronic cigarette state detection module consumes almost no power, so that the energy consumption of the electronic cigarette can be further reduced, and the service life of the electronic cigarette is prolonged.
In this embodiment, the method for controlling an electronic cigarette further includes:
receiving a signal to force an exit from a 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 in the shipping mode by receiving a signal for forcibly 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.
Step S110 specifically includes: a signal is detected that the capacitance has increased or decreased.
In this embodiment, the electronic cigarette state detecting unit is a capacitance detecting unit 2220, and the electronic cigarette state unit is a detecting electrode 2210.
Step S120 specifically includes:
generating a ship 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 first preset time and the second preset time range from 2 seconds to 30 seconds.
The embodiment also provides an electronic cigarette, wherein 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 over-discharge voltage protection unit, a discharge over-current 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 and used for controlling the first switch unit to be turned on or turned off, and the first switch unit is used for controlling the battery to supply power to the system circuit; the battery protection module also comprises an electronic cigarette state detection module and an electronic cigarette state unit, and the electronic cigarette state detection module is respectively and electrically connected with the electronic cigarette state unit and the battery protection module; the battery protection circuit further comprises a processor and a memory which are coupled with each other, and the processor is used for executing the program instructions stored in the memory so as to realize the control method of the electronic cigarette.
It should be understood that reference herein to "a plurality" means two or more. Other embodiments of the present 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 invention 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 invention 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, the embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other. For the device embodiment, since it is basically similar to the method embodiment, the description is simple, and for the relevant points, refer to the partial description of the method embodiment.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present application and is not to be construed as limiting the scope of the present application, so that the present application is not limited thereto, and all equivalent variations and modifications can be made to the present application.
Claims (21)
1. A battery protection chip is characterized by comprising a battery protection module and a first switch unit, wherein the battery protection module comprises a power supply pin, a power grounding pin, an over-discharge voltage protection unit, a discharge over-current protection unit, a reference voltage generation unit, a logic control unit and a system pin, wherein the power supply pin and the power grounding pin are used for being electrically connected with a battery, the first end of the first switch unit is electrically connected with the power supply pin or the power grounding pin, the second end of the first switch unit is electrically connected with the system pin, the control end of the first switch unit is electrically connected with the logic control unit, and the system pin is used for being electrically connected with a system circuit;
the battery protection chip further comprises a capacitor detection module, the capacitor detection module is respectively connected with the power supply pin and the power grounding pin, the capacitor detection module comprises a capacitor detection unit and a capacitor detection pin, the capacitor detection unit is electrically connected with the capacitor detection pin, the capacitor detection pin is used for electrically connecting a detection electrode, the capacitor detection module is further electrically connected with the battery protection module, when the capacitor detection unit detects that the capacitor changes, the capacitor detection module sends a shipping control signal to the battery protection module, the battery protection module enters or exits a shipping mode, and in the shipping mode, the first switch unit is disconnected to enable the battery to stop supplying power to the system circuit.
2. The battery protection chip of claim 1, wherein the battery protection module comprises a first shipping entrance end, wherein the capacitive detection module further comprises a second shipping entrance end and a second shipping exit end, wherein the second shipping entrance end is electrically connected to the first shipping entrance end, wherein the second shipping exit end is electrically connected to the system pin, wherein the capacitive detection module generates a shipping entrance signal and a shipping exit signal, wherein the shipping entrance signal is output to the first shipping entrance end via the second shipping entrance end, and wherein the battery protection module enters a shipping mode; the shipping exit signal is output to the system pin via the second shipping exit terminal, and the battery protection module exits the shipping mode.
3. The battery protection chip of claim 1, wherein the battery protection module comprises a first ship entry end and a first ship exit end, wherein the capacitance detection module comprises a second ship entry end and a second ship exit end, wherein the second ship entry end is electrically connected to the first ship entry end, wherein the second ship exit end is electrically connected to the first ship exit end, wherein the capacitance detection module generates a ship entry signal and a ship exit signal, wherein the ship entry signal is output to the first ship entry end via the second ship entry end, and wherein the battery protection module enters a ship mode; the shipping exit signal is output to the first shipping exit end via the second shipping exit end, and the battery protection module exits the shipping mode.
4. The battery protection chip according to claim 2 or 3, wherein the capacitance detection unit generates the shipping exit signal according to a change in capacitance, the capacitance detection unit sends the shipping exit signal to the first shipping exit terminal or the system pin via the second shipping exit terminal, the capacitance detection module generates a shipping entry signal for a first predetermined time, and the capacitance detection module sends the shipping entry signal to the first shipping entry terminal via the second shipping entry terminal.
5. The battery protection chip of claim 1, wherein the battery protection module comprises a first shipping exit end, the capacitance detection module comprises a second shipping exit end, the second shipping exit end is electrically connected to the capacitance detection unit, the second shipping exit end is further electrically connected to the first shipping exit end, the capacitance detection unit generates a shipping exit signal according to a change in capacitance, the shipping exit signal is output to the first shipping exit end via the second shipping exit end, the battery protection module exits the shipping mode and the battery protection module generates a shipping entry signal via a second predetermined time, and the battery protection module enters the shipping mode.
6. The battery protection chip according to claim 1, wherein the battery protection module comprises a first shipping terminal, the capacitance detection module comprises a second shipping terminal, the second shipping terminal is electrically connected to the capacitance detection unit, the second shipping terminal is further electrically connected to the first shipping terminal, the capacitance detection unit generates a shipping entry signal and a shipping exit signal according to a change in capacitance, the shipping entry signal and the shipping exit signal are output to the first shipping terminal via the second shipping terminal, and the battery protection module enters a shipping mode or exits the shipping mode.
7. The battery protection chip according to any one of claims 1 to 6, wherein the capacitance detection unit is electrically connected to the battery protection module, and when the capacitance detection unit detects that the capacitance is greater than the first threshold, the capacitance detection unit sends a shipping exit signal to the battery protection module, and the battery protection module exits the shipping mode.
8. The battery protection chip according to claim 7, wherein the capacitance detection module further comprises a first timing unit, the first timing unit is electrically connected to the capacitance detection unit, the first timing unit is further electrically connected to the battery protection module, when the capacitance detection unit sends a ship exit signal to the battery protection module, the battery protection module exits from a ship mode, and the first timing unit receives the ship exit signal, and after a first preset time, the first timing unit generates a ship entry signal and outputs the ship entry signal to the battery protection module, and the battery protection module enters into the ship mode.
9. The battery protection chip of claim 7, wherein the battery protection module comprises a second timing unit, the battery protection module exits the shipping mode when the capacitance detection unit sends a shipping exit signal to the battery protection module, and the second timing unit generates a shipping entry signal and outputs the shipping entry signal to the battery protection module after a second preset time, and the battery protection module enters the shipping mode.
10. The battery protection chip according to any one of claims 1 to 6, wherein the capacitance detection unit is electrically connected to the battery protection module, and when the capacitance detection unit detects that the capacitance is smaller than a first threshold, the capacitance detection unit sends a shipping entry signal to the battery protection module, and the battery protection module enters a shipping mode.
11. The battery protection chip according to any one of claims 1 to 6, wherein the logic control unit comprises a sleep logic subunit, two input ends of the sleep logic subunit are electrically connected to the system pin and the output end of the over-voltage protection unit, respectively, the sleep logic subunit further receives a shipping exit signal or a shipping entry signal, the sleep logic subunit controls the battery protection module to exit the shipping mode after receiving the shipping exit signal, and/or the sleep logic subunit controls the battery protection module to enter the shipping mode after receiving the shipping entry signal.
12. The battery protection chip of any one of claims 1-6, wherein the capacitance detection pin is further configured to electrically connect to at least one reference capacitor.
13. The battery protection chip according to any one of claims 1 to 6, wherein the capacitance detection module is in a normal operation mode in a shipping mode.
14. The battery protection chip of claim 13, wherein at least some of the cells of the battery protection module consume no power in a shipping mode and the capacitance detection module is in a normal operating mode, and wherein at least some of the cells of the capacitance detection module consume no power in the normal operating mode; or,
in the shipping mode, the battery protection module is in a 0 power consumption mode, the capacitance detection module is in a normal working mode, and when the battery protection module is in the normal working mode, the capacitance detection module is in the 0 power consumption mode.
15. A battery pack comprising a battery and a battery protection chip according to any one of claims 1 to 14, wherein the power supply pin and the power ground pin are electrically connected to the battery, respectively.
16. The battery pack according to claim 15, wherein the battery pack comprises a second resistor, a first resistor, and a third switch unit, wherein one end of the second resistor is electrically connected to the positive electrode of the battery, the other end of the second resistor is electrically connected to the power supply pin, one end of the first resistor is electrically connected to the power supply pin, the other end of the first resistor is electrically connected to one end of the third switch unit, the other end of the third switch unit is electrically connected to the power ground pin, the control terminal of the third switch unit is electrically connected to the capacitance detection module, and the battery protection module enters a shipping mode when the third switch unit is turned on.
17. The battery protection circuit of claim 16, wherein the capacitance detection module controls the third switching unit to be turned off after the capacitance detection module detects that the battery protection module enters a shipping mode.
18. The battery pack of claim 15, further comprising a push button switch, wherein one end of the push button switch is connected to a low level or a high level, and the other end of the push button switch is electrically connected to the battery protection module of the battery protection chip, and the battery protection module exits the ship mode when the push button switch is triggered.
19. An electronic device comprising a system circuit and the battery pack of any of claims 15-18, wherein the system pin is electrically connected to the system circuit.
20. The electronic device of claim 19, wherein the electronic device is an electronic cigarette, the electronic cigarette comprises a tobacco rod and a cartridge, the cartridge is connected to the tobacco rod, the cartridge comprises an atomizer, the tobacco rod comprises an airflow sensor, and the airflow sensor and the atomizer are respectively electrically connected to the system circuit.
21. The electronic device of claim 20, wherein the cartridge comprises a mouthpiece and a detection electrode, the detection electrode is disposed in the mouthpiece, and the detection electrode is electrically connected to the capacitance detection pin; and/or the presence of a gas in the atmosphere,
the tobacco rod comprises a hollow tobacco rod shell, pores are arranged on the tobacco rod shell, the battery component comprises a button switch, the button switch is located in the tobacco rod shell, and the pores correspond to the buttons or the keys of the button switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202111651734.2A CN114668178A (en) | 2021-12-30 | 2021-12-30 | Battery protection chip, battery pack and electronic device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111651734.2A CN114668178A (en) | 2021-12-30 | 2021-12-30 | Battery protection chip, battery pack and electronic device |
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| CN114668178A true CN114668178A (en) | 2022-06-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111651734.2A Pending CN114668178A (en) | 2021-12-30 | 2021-12-30 | Battery protection chip, battery pack and electronic device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114668178A (en) |
-
2021
- 2021-12-30 CN CN202111651734.2A patent/CN114668178A/en active Pending
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