CN113349463A - Airflow sensor and electronic cigarette - Google Patents
Airflow sensor and electronic cigarette Download PDFInfo
- Publication number
- CN113349463A CN113349463A CN202110729503.2A CN202110729503A CN113349463A CN 113349463 A CN113349463 A CN 113349463A CN 202110729503 A CN202110729503 A CN 202110729503A CN 113349463 A CN113349463 A CN 113349463A
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- Prior art keywords
- circuit
- airflow sensor
- signal
- input end
- oscillation frequency
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- 239000003571 electronic cigarette Substances 0.000 title claims abstract description 41
- 230000010355 oscillation Effects 0.000 claims abstract description 76
- 238000001514 detection method Methods 0.000 claims abstract description 30
- 230000008859 change Effects 0.000 claims description 14
- 230000007246 mechanism Effects 0.000 claims description 13
- 239000000126 substance Substances 0.000 claims description 8
- 239000006199 nebulizer Substances 0.000 claims 1
- SNICXCGAKADSCV-JTQLQIEISA-N (-)-Nicotine Chemical compound CN1CCC[C@H]1C1=CC=CN=C1 SNICXCGAKADSCV-JTQLQIEISA-N 0.000 description 12
- 229960002715 nicotine Drugs 0.000 description 12
- SNICXCGAKADSCV-UHFFFAOYSA-N nicotine Natural products CN1CCCC1C1=CC=CN=C1 SNICXCGAKADSCV-UHFFFAOYSA-N 0.000 description 12
- 239000000779 smoke Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000005669 field effect Effects 0.000 description 4
- 230000000391 smoking effect Effects 0.000 description 4
- 241000208125 Nicotiana Species 0.000 description 2
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 231100001231 less toxic Toxicity 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 230000003278 mimic effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000019505 tobacco product Nutrition 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
Images
Classifications
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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
- A24F40/51—Arrangement of sensors
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- Fire-Detection Mechanisms (AREA)
Abstract
The invention provides an airflow sensor and an electronic cigarette, wherein the airflow sensor comprises a signal input end, an oscillation circuit, a signal output end and a temperature detection circuit; the temperature detection circuit is used for detecting the ambient temperature and enabling the oscillation circuit to adjust the first oscillation frequency according to the ambient temperature. The problem that the signal processing circuit in the traditional electronic cigarette is prone to misjudgment can be solved by the aid of the electronic cigarette.
Description
Technical Field
The invention relates to the field of circuit design, in particular to an airflow sensor and an electronic cigarette.
Background
An electronic cigarette, i.e., an electronic nicotine delivery system, is a battery-powered smoking device that releases a nicotine solution vapor that is inhalable by a user. Electronic cigarette products were originally designed to mimic the look and feel of conventional combustible tobacco products, and have recently been advertised as a healthier alternative to tobacco, due to more flexible control of the nicotine content (nicotine and other chemicals can be added to the tobacco tar, depending on the preference of the user) and less toxic substances released than conventional cigarettes.
Generally, the electronic cigarette determines whether the user is smoking by an airflow sensor therein, and when the electronic cigarette determines that the user is smoking by the airflow sensor, the electronic cigarette controls to release the substance containing nicotine for the user to smoke.
Specifically, the airflow sensor is internally provided with an oscillator linked with the inhalation of a user, the frequency of the high and low levels output by the oscillator changes along with the inhalation of the user, when the airflow sensor is actually used, the airflow sensor counts the change of the times of the high and low levels output by the oscillator by using a counter within a fixed time, and then the signal processing circuit judges whether the substance containing nicotine is released by the user or not by reusing the change degree of the times.
However, in the actual use process, as the inhalation time of the user and the detection time of the airflow sensor increase, the temperature of the whole electronic cigarette system increases, but the oscillation frequency of the oscillator changes along with the change of the temperature, so that the signal processing block has a misjudgment phenomenon, the user can clearly stop smoking, and the inside of the system also considers that the user smokes again, thereby continuously releasing the substance containing nicotine.
Based on the above technical problem, there is a need for a device capable of significantly improving the detection accuracy of the signal processing circuit of the electronic cigarette.
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide an airflow sensor and an electronic cigarette, so as to solve the problem that a signal processing circuit inside a conventional electronic cigarette is prone to erroneous determination.
The airflow sensor provided by the embodiment of the invention comprises a signal input end, an oscillation circuit, a signal output end and a temperature detection circuit; the temperature detection circuit is used for detecting the ambient temperature and enabling the oscillation circuit to adjust the first oscillation frequency according to the ambient temperature.
In addition, preferably, a counting circuit and a signal processing circuit are further provided between the oscillation circuit and the signal output terminal; wherein the content of the first and second substances,
the counting circuit is used for acquiring the level oscillation frequency of the high and low levels output by the oscillation circuit, and the signal processing circuit is used for enabling the signal output end to output the high or low level based on the level oscillation frequency according to a preset judgment mechanism.
In addition, it is preferable that the temperature detection circuit is connected to the signal processing circuit; and the number of the first and second electrodes,
the temperature detection circuit is further configured to enable the signal processing circuit to fine-tune the determination mechanism according to the ambient temperature.
Furthermore, it is preferable that the counting circuit includes an oscillator; and the number of the first and second electrodes,
the counting circuit is used for counting the high-low level change output by the oscillating circuit in one natural period of the oscillator so as to determine the level oscillation frequency.
In addition, it is preferable that the temperature detection circuit is connected to the counting circuit; and the number of the first and second electrodes,
the temperature detection circuit is further configured to enable the counting circuit to adjust a second oscillation frequency of the oscillator according to the ambient temperature.
In addition, preferably, the oscillation circuit includes a comparator, a microphone and an electronic tube, wherein a positive input end of the comparator, a positive electrode of the microphone and an input end of the electronic tube are all connected to the signal input end, a negative input end of the comparator is connected to an input end of a preset reference signal, a negative electrode of the microphone and an output end of the electronic tube are both grounded, and an output end of the comparator is respectively connected to a controlled end of the electronic tube and the counting circuit.
In addition, preferably, the signal input end is connected to a power supply, and the signal circuit supplies power to the positive input end of the comparator, the positive electrode of the microphone and the input end of the electronic tube through the power supply.
In addition, preferably, an oscillation frequency adjustment enable terminal is further provided in the oscillation circuit, and the temperature detection circuit enables the oscillation circuit to adjust the first oscillation frequency by the oscillation frequency adjustment enable terminal according to the ambient temperature.
In another aspect, the present invention further provides an electronic cigarette, which includes the airflow sensor.
In addition, the preferred scheme is that the electronic cigarette further comprises a power supply, a switching circuit and an atomizer; the output end of the airflow sensor is connected with the controlled end of the switch circuit, the input end of the switch circuit is connected with the output end of the power supply, and the output end of the switch circuit is connected with the atomizer.
According to the above technical scheme, the airflow sensor and the electronic cigarette provided by the invention have the advantages that the temperature detection circuit is additionally arranged to detect the ambient temperature of the internal temperature of the electronic cigarette, and along with the rise of the ambient temperature, when the ambient temperature is higher than a certain value, corresponding signals are respectively sent to the oscillating circuit, the counting circuit and the signal processing circuit, so that the first oscillating frequency of the oscillating circuit, the second oscillating frequency of the counting circuit and the judgment mechanism of the signal processing circuit are adjusted, the dynamic balance among the first oscillating frequency, the second oscillating frequency and the signal processing circuit is realized, and the phenomenon that the electronic cigarette has misoperation due to the rise of the ambient temperature is avoided.
To the accomplishment of the foregoing and related ends, one or more aspects of the invention comprise the features hereinafter fully described and particularly pointed out in the claims. The following description and the annexed drawings set forth in detail certain illustrative aspects of the invention. These aspects are indicative, however, of but a few of the various ways in which the principles of the invention may be employed. Further, it is intended that the present invention includes all such aspects and their equivalents
Drawings
Other objects and results of the present invention will become more apparent and more readily appreciated as the same becomes better understood by reference to the following description taken in conjunction with the accompanying drawings. In the drawings:
FIG. 1 is a block diagram of an airflow sensor according to an embodiment of the present invention;
fig. 2 is a schematic circuit diagram of an oscillating circuit according to an embodiment of the present invention;
figure 3 is a block diagram of the structure of an electronic cigarette according to an embodiment of the invention;
wherein the reference numerals include: the electronic device comprises an oscillation circuit 10, a counting circuit 20, a signal processing circuit 30, a temperature detection circuit 40, a power supply 100, a switching power supply 200, an airflow sensor 300, an atomizer 400, a microphone J, an electronic tube Q, an oscillation frequency adjustment enable end EN _ ROSC, a signal input end IN and a signal output end OUT.
The same reference numbers in all figures indicate similar or corresponding features or functions.
Detailed Description
To describe the structure of the air flow sensor of the present invention in detail, specific embodiments of the present invention will be described below with reference to the accompanying drawings. It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all 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 invention.
It should be noted that if the description of "first", "second", etc. is provided in the embodiment of the present invention, the description of "first", "second", etc. is only for descriptive purposes and is not to be construed as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. Furthermore, if any reference to the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicates an orientation or positional relationship based on that shown in the drawings, it is merely for convenience of describing the present invention and simplifying the description, and it does not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
In addition, the meaning of "and/or" appearing throughout is to include three juxtapositions, exemplified by "A and/or B" including either scheme A, or scheme B, or a scheme in which both A and B are satisfied.
Fig. 1 is a block diagram showing the structure of an air flow sensor 300 according to an embodiment of the present invention, and according to fig. 1, the air flow sensor 300 provided IN the embodiment of the present invention includes a signal input terminal IN, an oscillation circuit 10, a signal output terminal OUT, and a temperature detection circuit 40; the input end of the oscillating circuit 10 is connected to the signal input end IN, and the output end of the oscillating circuit 10 is connected to the signal output end OUT. In an actual process, the temperature detection circuit 40 detects an ambient temperature inside the electronic cigarette, compares the ambient temperature with a preset temperature reference value, and when the ambient temperature is greater than the preset temperature reference value, the temperature detection circuit 40 sends a corresponding frequency adjustment signal to the oscillation circuit, so that the oscillation circuit 10 can adjust the first oscillation frequency of the oscillation circuit, and the electronic cigarette malfunction phenomenon caused by the change of the first oscillation frequency due to the ambient temperature is prevented.
Further, a counter circuit 20 and a signal processing circuit 30 are provided between the oscillation circuit 10 and the signal output terminal OUT, and a determination mechanism is preset in the signal processing circuit 30. In the actual use process, the counting circuit 20 is configured to obtain the level oscillation frequency of the high and low levels output by the oscillation circuit 10, and the signal processing circuit 30 is configured to enable the signal output end OUT to output the high or low level based on the level oscillation frequency according to a preset determination mechanism; for example, when the determination mechanism in the signal processing circuit 30 determines that the level oscillation frequency of the high and low levels output by the oscillating circuit 10 is greater than or equal to the preset frequency reference value, the enable signal output terminal OUT is enabled to output the high level, when the determination mechanism in the signal processing circuit 30 determines that the level oscillation frequency of the high and low levels output by the oscillating circuit 10 is less than the preset frequency reference value, the enable signal output terminal OUT is enabled to output the low level, and the subsequent circuit determines whether to release the smoke containing the nicotine component for the user to eat according to the high level or the low level output by the signal output circuit.
In addition, the temperature detection circuit 40 also needs to be connected to the signal processing circuit 30; in an actual process, when the ambient temperature changes, the temperature detection circuit 40 not only enables the oscillation circuit 10 to adjust the first oscillation frequency thereof, but also enables the signal processing circuit 30 to finely adjust the determination mechanism (adjust the preset frequency reference value) according to the ambient temperature, so that a dynamic balance is formed among the ambient temperature, the first oscillation frequency and the preset frequency reference value, thereby preventing the electronic cigarette from generating a false operation (such as mistakenly releasing smoke containing nicotine) due to the rise of the ambient temperature.
Specifically, the counter circuit 20 includes an oscillator; in practice, the counter circuit 20 counts the level changes of the output of the oscillator circuit 10 in one natural period (1 clock) of the oscillator to determine the level oscillation frequency of the output of the oscillator circuit 10. The temperature detection circuit 40 is connected to the counter circuit 20; the temperature detection circuit 40 not only enables the oscillation circuit 10 to adjust the first oscillation frequency thereof, and enables the signal processing circuit 30 to finely adjust the determination mechanism, but also enables the counting circuit 20 to adjust the second oscillation frequency of the oscillator according to the environmental temperature to adjust the natural period of the oscillator, thereby realizing the adjustment of the level oscillation frequency statistical period.
In the actual use process, when the ambient temperature rises, both the first oscillation frequency of the oscillation circuit 10 and the second oscillation frequency of the oscillator of the counting circuit 20 change due to the rise of the temperature, and the internal structures of the two are different, so the conversion rates of the first oscillation frequency and the second oscillation frequency to the temperature are different, at this time, if the signal processing circuit 30 still judges according to the original preset frequency reference value, the misjudgment phenomenon will occur, and finally, the phenomenon that the user releases the smoke containing the nicotine component even though not inhaling occurs, and resources are seriously wasted.
In order to solve the above problem, when the ambient temperature rises, the temperature detection circuit 40 enables the oscillation circuit 10 to adjust the first oscillation frequency (the first oscillation frequency under the same airflow), and the temperature detection circuit 40 enables the counting circuit 20 to adjust the second oscillation frequency of the oscillator, and the natural period of the oscillator changes along with the change of the second oscillation frequency, and since the counting circuit 20 is used for recording the level change number output by the signal output terminal OUT of the airflow sensor 300 in one natural period (i.e. the level oscillation frequency of the high level and the low level output by the oscillation circuit 10), when the ambient temperature changes, the level oscillation frequency obtained by the counting circuit 20 can be kept unchanged under the same airflow by adjusting the first oscillation frequency and the second oscillation frequency, thereby preventing the occurrence of the false operation phenomenon. Of course, when the ambient temperature changes, the determination mechanism of the signal processing circuit 30 may be further finely adjusted, so that a dynamic balance is formed among the ambient temperature, the first oscillation frequency, the second oscillation frequency, and the preset frequency reference value, thereby preventing the electronic cigarette from malfunctioning due to the rise of the ambient temperature.
IN addition, fig. 2 shows a circuit structure of the oscillation circuit 10 according to an embodiment of the present invention, as can be seen from fig. 2, IN a specific implementation manner of the present invention, the oscillation circuit 10 may include a comparator, a microphone J, and a tube Q, wherein a positive input terminal of the comparator, a positive electrode of the microphone J, and an input terminal of the tube Q are all connected to the signal input terminal IN, a negative input terminal of the comparator is connected to an input terminal of a preset reference signal, a negative electrode of the microphone J and an output terminal of the tube Q are all connected to ground, and output terminals of the comparator are respectively connected to a controlled terminal of the tube Q and the counting circuit 20.
IN practical use, when the signal input terminal IN is turned on, a signal (usually a current signal) input by the signal input terminal IN charges the microphone J, the voltage at the positive input terminal of the comparator gradually increases, and when the voltage at the positive input terminal of the comparator is greater than the reference voltage signal at the negative input terminal thereof, the output terminal of the comparator generates a high-level electrical signal and outputs the high-level electrical signal to the counting circuit 20 through the signal output terminal OUT. When the output end of the comparator outputs the high-level electric signal, the electronic tube Q is switched on, and the level of the positive input end of the comparator is pulled down, so that the output end of the comparator outputs the low-level electric signal to the counting circuit 20, and meanwhile, the microphone J recovers the charging state, and the counting circuit 20 counts the level oscillation frequency of the oscillating circuit 10 repeatedly.
It should be noted that the electronic tube Q functions as a switch, and when the output end of the comparator outputs a high level, the electronic tube Q is turned on, and when the output end of the comparator outputs a low level, the electronic tube Q is turned off. Therefore, a switch may be used instead of the tube Q in the actual circuit design process. In addition, the electron tube Q may be an N-type insulating field effect transistor, a gate of the N-type insulating field effect transistor is a controlled terminal of the electron tube Q, a drain of the N-type insulating field effect transistor is an input terminal of the first electron tube Q, and a source of the N-type insulating field effect transistor is an output terminal of the first electron tube Q. In other embodiments, the third transistor Q may also be an NPN transistor or other transistor that can be implemented.
In addition, the microphone J has a capacitive characteristic, that is, the microphone J can be understood as a capacitor in the circuit, the microphone J is used for sensing the inhalation volume of the user, and the capacitance value of the microphone J changes along with the inhalation volume change of the user, that is, the capacitance value of the microphone J increases when the user smokes.
IN addition, it should be noted that the signal input terminal IN needs to be connected to a current source, and the signal circuit supplies power to the positive input terminal of the comparator, the positive electrode of the microphone J, and the input terminal of the electronic tube Q through the current source.
In a specific real-time mode of the present invention, an oscillation frequency adjustment enable terminal EN _ ROSC is further provided in the oscillation circuit 10, and when the temperature detection circuit 40 detects a change in the ambient temperature, the input current of the oscillation circuit 10 can be adjusted through the oscillation frequency adjustment enable terminal EN _ ROSC, and the charging and discharging speed of the microphone J changes with the change in the input current of the oscillation circuit 10, so that the change in the first oscillation frequency under the same airflow is realized.
In another aspect, the present invention further provides an electronic cigarette, which includes the airflow sensor 300. The detailed structure of the airflow sensor 300 can refer to the above embodiments, and is not described herein; it can be understood that, because the airflow sensor 300 is used in the electronic cigarette according to the present invention, the embodiment of the electronic cigarette according to the present invention includes all technical solutions of all embodiments of the airflow sensor 300, and the achieved technical effects are also completely the same, and are not described herein again.
In a specific real-time manner of the present invention, fig. 3 shows a structure of an electronic cigarette according to an embodiment of the present invention, and as can be seen from fig. 3, the electronic cigarette further includes a power supply 100, a switch circuit 200, and an atomizer 400; wherein, the atomizer 400 is used for releasing the smoke containing nicotine composition, the output terminal of the airflow sensor 300 is connected with the controlled terminal of the switch circuit 200, the input terminal of the switch circuit 200 is connected with the output terminal of the power supply 100, and the output terminal of the switch circuit 200 is connected with the atomizer 400. The switching circuit 200 has two states of on and off, and can be implemented by a circuit composed of various transistors.
The working principle of the electronic cigarette is as follows: the microphone J of the oscillating circuit detects whether a user inhales and generates a corresponding level oscillating signal to the counting circuit 20, the counting circuit 20 calculates the total number of times of level change of the level oscillating signal to form a level oscillating frequency and transmits the level oscillating frequency to the signal processing circuit 30 at the rear end, and the signal processing circuit 30 judges the value of the level oscillating frequency according to a preset judging mechanism, generates a corresponding control signal to the switching circuit 200 of the electronic cigarette and controls the switching circuit 200 to be switched on or switched off. When the switching circuit 200 of the electronic cigarette is turned off, the power supply 100 of the electronic cigarette is disconnected from the atomizer 400, the atomizer 400 does not operate, and when the switching circuit 200 of the electronic cigarette is turned on, the power supply 100 of the electronic cigarette is connected to the atomizer 400, and the atomizer 400 operates to provide the user with smoke containing nicotine.
The air flow sensor and the electronic cigarette proposed according to the present invention are described above by way of example with reference to the accompanying drawings. However, it will be appreciated by those skilled in the art that various modifications may be made to the airflow sensor and electronic cigarette set forth above without departing from the scope of the invention. Therefore, the scope of the present invention should be determined by the contents of the appended claims.
Claims (10)
1. An airflow sensor is characterized by comprising a signal input end, an oscillation circuit, a signal output end and a temperature detection circuit; wherein the content of the first and second substances,
the input end of the oscillating circuit is connected with the signal input end, the output end of the oscillating circuit is connected with the signal output end, and the temperature detection circuit is used for detecting the ambient temperature and enabling the oscillating circuit to adjust the first oscillating frequency according to the ambient temperature.
2. The airflow sensor of claim 1,
a counting circuit and a signal processing circuit are also arranged between the oscillating circuit and the signal output end; wherein the content of the first and second substances,
the counting circuit is used for acquiring the level oscillation frequency of the high and low levels output by the oscillation circuit, and the signal processing circuit is used for enabling the signal output end to output the high or low level based on the level oscillation frequency according to a preset judgment mechanism.
3. The airflow sensor of claim 2,
the temperature detection circuit is connected with the signal processing circuit; and the number of the first and second electrodes,
the temperature detection circuit is further configured to enable the signal processing circuit to fine-tune the determination mechanism according to the ambient temperature.
4. The airflow sensor of claim 2,
the counting circuit comprises an oscillator; and the number of the first and second electrodes,
the counting circuit is used for counting the high-low level change output by the oscillating circuit in one natural period of the oscillator so as to determine the level oscillation frequency.
5. The airflow sensor of claim 4,
the temperature detection circuit is connected with the counting circuit; and the number of the first and second electrodes,
the temperature detection circuit is further configured to enable the counting circuit to adjust a second oscillation frequency of the oscillator according to the ambient temperature.
6. The airflow sensor according to any one of claims 1 to 5,
the oscillating circuit comprises a comparator, a microphone and an electronic tube, wherein the positive input end of the comparator, the positive electrode of the microphone and the input end of the electronic tube are connected with the signal input end, the negative input end of the comparator is connected with the input end of a preset reference signal, the negative electrode of the microphone and the output end of the electronic tube are both grounded, and the output end of the comparator is respectively connected with the controlled end of the electronic tube and the counting circuit.
7. The airflow sensor of claim 6,
the signal input end is connected with a power supply, and the signal circuit supplies power to the positive input end of the comparator, the anode of the microphone and the input end of the electronic tube through the power supply.
8. The airflow sensor of claim 6,
and the temperature detection circuit enables the oscillation circuit to adjust the first oscillation frequency through the oscillation frequency adjustment enabling end according to the environment temperature.
9. An electronic cigarette, characterized in that it comprises an airflow sensor according to any one of claims 1 to 8.
10. The electronic cigarette of claim 9, wherein the electronic cigarette further comprises a power supply, a switching circuit, and a nebulizer; wherein the content of the first and second substances,
the output end of the airflow sensor is connected with the controlled end of the switch circuit, the input end of the switch circuit is connected with the output end of the power supply, and the output end of the switch circuit is connected with the atomizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110729503.2A CN113349463A (en) | 2021-06-29 | 2021-06-29 | Airflow sensor and electronic cigarette |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110729503.2A CN113349463A (en) | 2021-06-29 | 2021-06-29 | Airflow sensor and electronic cigarette |
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| Publication Number | Publication Date |
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| CN113349463A true CN113349463A (en) | 2021-09-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110729503.2A Pending CN113349463A (en) | 2021-06-29 | 2021-06-29 | Airflow sensor and electronic cigarette |
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| CN105577120A (en) * | 2007-04-05 | 2016-05-11 | 高通股份有限公司 | Oscillator and method of starting oscillation |
| CN107017837A (en) * | 2015-10-27 | 2017-08-04 | 精工爱普生株式会社 | Circuit arrangement, oscillator, electronic equipment and moving body |
| CN110801055A (en) * | 2019-10-29 | 2020-02-18 | 歌尔微电子有限公司 | Electron cigarette circuit and electron cigarette |
| CN111077194A (en) * | 2019-12-31 | 2020-04-28 | 歌尔微电子有限公司 | Airflow sensor and electronic cigarette |
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2021
- 2021-06-29 CN CN202110729503.2A patent/CN113349463A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105577120A (en) * | 2007-04-05 | 2016-05-11 | 高通股份有限公司 | Oscillator and method of starting oscillation |
| US20130213484A1 (en) * | 2011-03-16 | 2013-08-22 | Andrey Getalov | Method of simultaneous processing and volume preparation of emulsion cosmetics |
| CN107017837A (en) * | 2015-10-27 | 2017-08-04 | 精工爱普生株式会社 | Circuit arrangement, oscillator, electronic equipment and moving body |
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Application publication date: 20210907 |