CN114190612A - Electron cigarette chip with motor drive - Google Patents
Electron cigarette chip with motor drive Download PDFInfo
- Publication number
- CN114190612A CN114190612A CN202111148745.9A CN202111148745A CN114190612A CN 114190612 A CN114190612 A CN 114190612A CN 202111148745 A CN202111148745 A CN 202111148745A CN 114190612 A CN114190612 A CN 114190612A
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- Prior art keywords
- control signal
- circuit
- current
- chip
- temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 235000019504 cigarettes Nutrition 0.000 title claims description 9
- 239000003571 electronic cigarette Substances 0.000 claims abstract description 33
- 238000010438 heat treatment Methods 0.000 claims description 10
- 230000001681 protective effect Effects 0.000 claims description 3
- 230000006870 function Effects 0.000 abstract description 5
- 239000004973 liquid crystal related substance Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 230000002159 abnormal effect Effects 0.000 description 5
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 4
- 239000003990 capacitor Substances 0.000 description 4
- 229910052744 lithium Inorganic materials 0.000 description 4
- 235000011201 Ginkgo Nutrition 0.000 description 1
- 244000194101 Ginkgo biloba Species 0.000 description 1
- 235000008100 Ginkgo biloba Nutrition 0.000 description 1
- 244000061176 Nicotiana tabacum Species 0.000 description 1
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 1
- 244000269722 Thea sinensis Species 0.000 description 1
- 206010053615 Thermal burn Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 235000008216 herbs Nutrition 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000004505 smoke cartridge Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- 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
-
- 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
-
- 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
- A24F40/90—Arrangements or methods specially adapted for charging batteries thereof
Landscapes
- Control Of Direct Current Motors (AREA)
Abstract
The invention discloses an electronic cigarette chip with a motor drive function, which comprises a current signal sensing and processing circuit, a temperature signal sensing and processing circuit, an over-temperature over-current and short-circuit protection circuit, a memory and a motor drive circuit, wherein the current signal sensing and processing circuit and the temperature signal sensing and processing circuit are respectively used for providing a first current signal and a second temperature signal for the over-temperature over-current and short-circuit protection circuit; the over-temperature over-current and short-circuit protection circuit is used for calling a first threshold value and a second threshold value from the memory, comparing the first current signal with the first threshold value to output a first control signal, comparing the second temperature signal with the second threshold value to output a second control signal, and outputting a third control signal according to the first control signal and the second control signal; and the motor driving circuit is used for controlling the start and stop of the micro motor vibration outside the chip according to the third control signal. Therefore, the potential safety hazard of the electronic cigarette is reduced.
Description
Technical Field
The invention belongs to the field of chips, and particularly relates to an electronic cigarette chip with a motor drive function.
Background
With the use of the heated and non-combustible low-temperature herbal electronic cigarette, the smoke cartridge part of the low-temperature herbal does not contain tobacco components, and natural herbs such as tea leaves, ginkgo leaves and flowers are mainly used as raw materials, so that the low-temperature herbal electronic cigarette has a trend of reducing harmful substances.
Electronic cigarettes relate to functions such as heating, battery power supply, battery charging and the like, and at present, the functions are increasingly realized by using chips with higher integration level.
However, the conventional electronic cigarette chip has the following disadvantages:
firstly, the electronic cigarette is powered by a battery, particularly a lithium battery, and the repeated charging of the lithium battery can cause potential safety hazards when the electronic cigarette is in a charging state;
secondly, when the electronic cigarette is in a use state, overcurrent or short circuit caused by circuit failure or battery power supply failure can also occur, so that the electronic cigarette in the use state easily causes personal danger.
The field needs an electronic cigarette chip which can reduce the potential safety hazard of the electronic cigarette and remind a user of abnormal conditions in time.
Disclosure of Invention
In view of this, the present invention provides an electronic cigarette chip with a motor drive, which is characterized in that:
the chip comprises a sensing and processing circuit of current signals, a sensing and processing circuit of temperature signals, a protection circuit of over-temperature over-current and short circuit, a memory and a motor driving circuit, wherein,
the sensing and processing circuit of the current signal, is used for providing the first current signal to the protective circuit of excess temperature overcurrent and short circuit;
the temperature signal sensing and processing circuit is used for providing a second temperature signal for the over-temperature over-current and short-circuit protection circuit;
the over-temperature over-current and short-circuit protection circuit is used for calling a first threshold value and a second threshold value from the memory, comparing the first current signal with the first threshold value to output a first control signal, comparing the second temperature signal with the second threshold value to output a second control signal, and outputting a third control signal according to the first control signal and the second control signal;
and the motor driving circuit is used for controlling the start and stop of the micro motor vibration outside the chip according to the third control signal.
Preferably, the first and second liquid crystal materials are,
the chip also includes power tube driver logic, wherein,
and the power tube driving logic is used for receiving a third control signal of the over-temperature over-current and short-circuit protection circuit so as to stop charging the electronic cigarette chip or heating the cigarette cartridge.
Preferably, the first and second liquid crystal materials are,
and the over-temperature over-current and short-circuit protection circuit performs logic OR operation according to the first control signal and the second control signal and outputs a third control signal according to an operation result.
Preferably, the first and second liquid crystal materials are,
when the first control signal is true, the third control signal is true regardless of whether the second control signal is true, and the micro-motor is brought into a vibration state.
Preferably, the first and second liquid crystal materials are,
when the second control signal is true, the third control signal is true regardless of whether the first control signal is true, and the micro-motor is brought into a vibration state.
Preferably, the first and second liquid crystal materials are,
when the first control signal is false and the second control signal is false, the third control signal is false and the micro-motor is in a non-operating state.
Preferably, the first and second liquid crystal materials are,
the chip is MCU or other chips.
The invention has the following technical effects:
through the scheme, the electronic cigarette chip disclosed by the invention not only can reduce the potential safety hazard of the electronic cigarette, but also can remind a user of abnormal conditions in time, and is beneficial to maintaining the service life of the heating element.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic diagram of a chip in one embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. 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: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. indicate an orientation or a positional relationship based on that shown in the drawings or that the product of the present invention is used as it is, this is only for convenience of description and simplification of the description, and it does not indicate or imply that the device or the element referred to 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.
Furthermore, the appearances of the terms "first," "second," and the like, if any, are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.
In one embodiment, the present invention discloses an electronic cigarette chip with a motor drive, which is characterized in that:
the chip comprises a sensing and processing circuit of current signals, a sensing and processing circuit of temperature signals, a protection circuit of over-temperature over-current and short circuit, a memory and a motor driving circuit, wherein,
the sensing and processing circuit of the current signal, is used for providing the first current signal to the protective circuit of excess temperature overcurrent and short circuit;
the temperature signal sensing and processing circuit is used for providing a second temperature signal for the over-temperature over-current and short-circuit protection circuit;
the over-temperature over-current and short-circuit protection circuit is used for calling a first threshold value and a second threshold value from the memory, comparing the first current signal with the first threshold value to output a first control signal, comparing the second temperature signal with the second threshold value to output a second control signal, and outputting a third control signal according to the first control signal and the second control signal;
and the motor driving circuit is used for controlling the start and stop of the micro motor vibration outside the chip according to the third control signal.
It can be understood that, in the above embodiment, when an over-temperature condition, an over-current condition or a short-circuit condition occurs, the electronic cigarette chip can output a third control signal by calling the threshold value in the memory, and further control the start and stop of the micro-motor vibration accordingly. Therefore, the electronic cigarette chip can quickly remind a user through vibration in an abnormal condition, and accidents such as fire or battery explosion are prevented from happening.
In one embodiment of the present invention,
the chip also includes power tube driver logic, wherein,
and the power tube driving logic is used for receiving a third control signal of the over-temperature over-current and short-circuit protection circuit so as to stop charging the electronic cigarette chip or heating the cigarette cartridge.
It will be appreciated that by ceasing heating of the cartridge when the e-cigarette is in use, this embodiment facilitates a rapid cut-off of power to the heating element in abnormal situations, which not only maintains the life of the heating element, but also reduces the incidence of potential secondary burns or scalds. Because the main work of the electronic cigarette is to heat the cigarette cartridge, and some electronic cigarettes can further burn the cigarette cartridge in the heating process, stopping heating the cigarette cartridge is equivalent to stopping the work of the electronic cigarette, so that the risk is reduced under the abnormal condition.
In one embodiment of the present invention,
and the over-temperature over-current and short-circuit protection circuit performs logic OR operation according to the first control signal and the second control signal and outputs a third control signal according to an operation result.
In one embodiment of the present invention,
when the first control signal is true, the third control signal is true regardless of whether the second control signal is true, and the micro-motor is brought into a vibration state.
In one embodiment of the present invention,
when the second control signal is true, the third control signal is true regardless of whether the first control signal is true, and the micro-motor is brought into a vibration state.
In one embodiment of the present invention,
when the first control signal is false and the second control signal is false, the third control signal is false and the micro-motor is in a non-operating state.
In one embodiment of the present invention,
the chip is MCU or other chips.
Referring to figure 1, in one embodiment, a circuit structure in the e-cigarette chip is illustrated, wherein the chip comprises: the chip is internally provided with an MOSFET, a power tube driving logic connected with the MOSFET, a charging control circuit, a microphone capacitor and key processing circuit, an over-temperature over-current and short-circuit protection circuit, a motor driving circuit, a display control circuit, a VDD and the like; wherein,
VDD is used to provide power to the relevant components/circuits in the chip;
the built-in MOSFET of the chip is connected with the charging control circuit, and when the power tube drives the logic drive MOSFET, the VDD is connected into the charging control circuit to charge the battery;
the charging control circuit is a constant-current, constant-voltage and constant-temperature charging control circuit of a single lithium battery, is connected with a current setting pin Iset, and can adjust the charging current of the lithium battery through a resistor; in addition, the current setting pin is also connected with a temperature control pin AT and used for providing a temperature signal for the charging control circuit so as to realize a constant-temperature charging function; it can be understood that the sensing and processing circuit of the corresponding current signal and the sensing and processing circuit of the temperature signal are realized at the relevant pins; in addition, the charging control circuit is also connected with a display control circuit;
the microphone capacitor and key processing circuit is connected with the capacitor input pin CAP and the switch input pin SW and is used for receiving a capacitor touch signal and a traditional switch signal and further providing an output signal to the power tube driving logic and the display control circuit;
as described above, an over-temperature over-current and short-circuit protection circuit for retrieving a first threshold value and a second threshold value from a memory (note, which is not shown in fig. 1), comparing the first current signal with the first threshold value to output a first control signal, comparing the second temperature signal with the second threshold value to output a second control signal, and outputting a third control signal according to the first control signal and the second control signal;
the motor driving circuit is used for controlling the start and stop of the micro motor vibration outside the chip according to a third control signal;
the display control circuit drives different LEDs through a plurality of LED pins of the chip according to signals of the key processing circuit and/or the charging control circuit so as to prompt different operation states or different charging states of a user.
The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (7)
1. The utility model provides an electron cigarette chip with motor drive which characterized in that:
the chip comprises a sensing and processing circuit of current signals, a sensing and processing circuit of temperature signals, a protection circuit of over-temperature over-current and short circuit, a memory and a motor driving circuit, wherein,
the sensing and processing circuit of the current signal, is used for providing the first current signal to the protective circuit of excess temperature overcurrent and short circuit;
the temperature signal sensing and processing circuit is used for providing a second temperature signal for the over-temperature over-current and short-circuit protection circuit;
the over-temperature over-current and short-circuit protection circuit is used for calling a first threshold value and a second threshold value from the memory, comparing the first current signal with the first threshold value to output a first control signal, comparing the second temperature signal with the second threshold value to output a second control signal, and outputting a third control signal according to the first control signal and the second control signal;
and the motor driving circuit is used for controlling the start and stop of the micro motor vibration outside the chip according to the third control signal.
2. The electronic cigarette chip of claim 1, wherein, preferably,
the chip also includes power tube driver logic, wherein,
and the power tube driving logic is used for receiving a third control signal of the over-temperature over-current and short-circuit protection circuit so as to stop charging the electronic cigarette chip or heating the cigarette cartridge.
3. The electronic cigarette chip of claim 1,
and the over-temperature over-current and short-circuit protection circuit performs logic OR operation according to the first control signal and the second control signal and outputs a third control signal according to an operation result.
4. The electronic cigarette chip of claim 3,
when the first control signal is true, the third control signal is true regardless of whether the second control signal is true, and the micro-motor is brought into a vibration state.
5. The electronic cigarette chip of claim 3,
when the second control signal is true, the third control signal is true regardless of whether the first control signal is true, and the micro-motor is brought into a vibration state.
6. The electronic cigarette chip of claim 3,
when the first control signal is false and the second control signal is false, the third control signal is false and the micro-motor is in a non-operating state.
7. The electronic cigarette chip of claim 1,
the chip is MCU or other chips.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111148745.9A CN114190612A (en) | 2021-09-29 | 2021-09-29 | Electron cigarette chip with motor drive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111148745.9A CN114190612A (en) | 2021-09-29 | 2021-09-29 | Electron cigarette chip with motor drive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114190612A true CN114190612A (en) | 2022-03-18 |
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ID=80646128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111148745.9A Pending CN114190612A (en) | 2021-09-29 | 2021-09-29 | Electron cigarette chip with motor drive |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114190612A (en) |
Citations (8)
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|---|---|---|---|---|
| CN203233152U (en) * | 2013-04-19 | 2013-10-09 | 天津占德科技有限公司 | Lithium battery protection circuit with temperature protection and package chip thereof |
| CN104055224A (en) * | 2014-06-09 | 2014-09-24 | 矽力杰半导体技术(杭州)有限公司 | Integrated circuit for electronic cigarette and electronic cigarette |
| US20180026471A1 (en) * | 2015-03-30 | 2018-01-25 | Huawei Technologies Co., Ltd. | Charger, Terminal Device, and Charging System |
| US20180069393A1 (en) * | 2015-11-19 | 2018-03-08 | Fuji Electric Co., Ltd. | Over temperature protection circuit and semiconductor device |
| CN109185921A (en) * | 2018-09-21 | 2019-01-11 | 温州市诚芯电子有限公司 | A kind of high integration electronic cigarette lighter chip |
| US20190387795A1 (en) * | 2018-06-25 | 2019-12-26 | Juul Labs, Inc. | Vaporizer device heater control |
| CN211428937U (en) * | 2019-12-10 | 2020-09-04 | 深圳市海派特光伏科技有限公司 | Electronic cigarette battery pack and electronic cigarette |
| CN112773003A (en) * | 2021-01-28 | 2021-05-11 | 深圳市海派特光伏科技有限公司 | Special integrated chip for electronic atomizer |
-
2021
- 2021-09-29 CN CN202111148745.9A patent/CN114190612A/en active Pending
Patent Citations (8)
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| CN203233152U (en) * | 2013-04-19 | 2013-10-09 | 天津占德科技有限公司 | Lithium battery protection circuit with temperature protection and package chip thereof |
| CN104055224A (en) * | 2014-06-09 | 2014-09-24 | 矽力杰半导体技术(杭州)有限公司 | Integrated circuit for electronic cigarette and electronic cigarette |
| US20180026471A1 (en) * | 2015-03-30 | 2018-01-25 | Huawei Technologies Co., Ltd. | Charger, Terminal Device, and Charging System |
| US20180069393A1 (en) * | 2015-11-19 | 2018-03-08 | Fuji Electric Co., Ltd. | Over temperature protection circuit and semiconductor device |
| US20190387795A1 (en) * | 2018-06-25 | 2019-12-26 | Juul Labs, Inc. | Vaporizer device heater control |
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Non-Patent Citations (1)
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