CN116473303A - A temperature maintenance control circuit for electromagnetic induction heating electronic cigarette set - Google Patents
A temperature maintenance control circuit for electromagnetic induction heating electronic cigarette set Download PDFInfo
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- CN116473303A CN116473303A CN202310221280.8A CN202310221280A CN116473303A CN 116473303 A CN116473303 A CN 116473303A CN 202310221280 A CN202310221280 A CN 202310221280A CN 116473303 A CN116473303 A CN 116473303A
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- Prior art keywords
- electromagnetic induction
- induction heating
- heating electronic
- temperature
- induction coil
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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
- A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
- A24F40/46—Shape or structure of electric heating means
- A24F40/465—Shape or structure of electric heating means specially adapted for induction heating
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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
- A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
-
- 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
- A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
- A24F40/42—Cartridges or containers for inhalable precursors
-
- 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
- A24F40/57—Temperature control
Landscapes
- Control Of Temperature (AREA)
Abstract
Description
技术领域technical field
本发明涉及一种电磁感应加热电子烟具的温度保持控制电路。The invention relates to a temperature maintenance control circuit for an electromagnetic induction heating electronic cigarette set.
背景技术Background technique
电子烟快速加热到适合吸食的温度后，即不再需要供给大的功率，但也不能完全切断功率，此时控制的重点将转移到如何以尽可能小的功率保持合适的烟弹温度。After the e-cigarette is quickly heated to a temperature suitable for smoking, it no longer needs to supply high power, but the power cannot be completely cut off. At this time, the focus of control will shift to how to maintain a suitable temperature of the pod with as little power as possible.
CN201520410936.1公开一种电子烟自动匹配温控电路，包括升降压拓扑电路、MOS驱动电路、MCU、雾化器、温度检测电路和电源电路，所述MOS驱动电路与所述升降压拓扑电路连接，所述温度检测电路和所述雾化器均与所述升降压拓扑电路连接，所述MOS驱动电路、温度检测电路和升降压拓扑电路均与所述MCU连接，所述升降压拓扑电路、MOS驱动电路、温度检测电路和MCU均与所述电源电路连接。上述专利中温度检测电路为直接检测电子烟雾化器的加热丝工作温度，主要应用于加热丝加热烟油的电子烟领域，而在电磁感应加热的电子烟领域，对于直接测量发热体或者烟弹温度难度大、成本高，特别是将发热体内置在加热不燃烧烟弹中的电磁感应加热器具，直接测量发热体及其中心最高温度几乎不太可能。因此，如何能检测电磁感应加热电子烟具中发热体及烟弹的内部温度并以尽可能小的功率保持合适的烟弹温度，是急需解决的技术难题。CN201520410936.1 discloses an electronic cigarette automatic matching temperature control circuit, which includes a buck-boost topology circuit, a MOS drive circuit, an MCU, an atomizer, a temperature detection circuit and a power supply circuit. The power circuit is connected. The temperature detection circuit in the above-mentioned patent is to directly detect the working temperature of the heating wire of the electronic cigarette atomizer, which is mainly used in the field of electronic cigarettes where the heating wire heats e-liquid. In the field of electronic cigarettes heated by electromagnetic induction, it is difficult and costly to directly measure the temperature of the heating element or pod. Especially for electromagnetic induction heating appliances with the heating element built into the heat-not-burn pod, it is almost impossible to directly measure the maximum temperature of the heating element and its center. Therefore, how to detect the internal temperature of the heating element and the pod in the electromagnetic induction heating electronic smoking device and maintain a suitable temperature of the pod with as little power as possible is a technical problem that needs to be solved urgently.
发明内容Contents of the invention
本发明的目的就是为了解决上述背景技术存在直接测量烟弹温度难度大、成本高的不足，提供一种电磁感应加热电子烟具的温度保持控制电路，本发明的根据电子烟加热的电磁感应线圈与烟草的特性，通过即时调整供电功率，做到优化控制烟草温度保持，使消费者得到好的消费体验的前提下，最大限度节省电池电量消耗，延长烟具电池续航时间和元器件使用寿命。The purpose of the present invention is to solve the disadvantages of the above-mentioned background technology that it is difficult and costly to directly measure the temperature of the pod, and provide a temperature maintenance control circuit for electromagnetic induction heating electronic cigarettes. According to the characteristics of the electromagnetic induction coil and tobacco heated by electronic cigarettes, the present invention can optimize and control the temperature maintenance of tobacco by adjusting the power supply in real time, so that consumers can get a good consumption experience, save battery power consumption to the greatest extent, and prolong the battery life of smoking appliances and the service life of components.
本发明采用的技术方案是：The technical scheme adopted in the present invention is:
一种电磁感应加热电子烟具的温度保持控制电路，包括NTC热敏电阻、参考电阻、电源、MCU信号处理器，电磁感应加热电子烟具包括印刷线路板PCB、电磁感应线圈、控制器，印刷线路板PCB与电磁感应线圈紧密焊接在一起，电磁感应线圈加热由控制控制器，其特征在于：NTC热敏电阻贴在电磁感应加热电子烟具的印刷线路板PCB上，NTC热敏电阻、参考电阻、电源、MCU信号处理器连接成回路，MCU信号处理器与电磁感应加热电子烟具的控制器相连。A temperature maintenance control circuit for an electromagnetic induction heating electronic smoking set, including an NTC thermistor, a reference resistor, a power supply, and an MCU signal processor. The electromagnetic induction heating electronic smoking set includes a printed circuit board PCB, an electromagnetic induction coil, and a controller. The printed circuit board PCB and the electromagnetic induction coil are tightly welded together, and the electromagnetic induction coil is heated by a control controller. It is characterized in that: the NTC thermistor is attached to the printed circuit board PCB of the electromagnetic induction heating electronic smoking set. connected to the controller of the tool.
测量温度是控制温度的前提，但要直接测量烟弹温度难度大、成本高。实验表明，烟弹温度与加热的电磁感应线圈温度以及与电磁感应线圈紧密焊接的印刷线路板(PCB)温度正相关，烟弹温度稳定之后，通过测量并控制PCB板温度也能较好地控制烟弹温度。当然，这几个温度的关系不是线性的，而且它还受材料、结构和尺寸等因素的影响，具体产品需要通过试验标定校准，产品定型之后，其稳定性和一致性还是不错的。Measuring temperature is a prerequisite for controlling temperature, but it is difficult and costly to directly measure the temperature of pods. Experiments have shown that the temperature of the pod is positively correlated with the temperature of the heated electromagnetic induction coil and the temperature of the printed circuit board (PCB) tightly welded to the electromagnetic induction coil. After the temperature of the pod is stable, the temperature of the pod can be better controlled by measuring and controlling the temperature of the PCB. Of course, the relationship between these temperatures is not linear, and it is also affected by factors such as material, structure, and size. The specific product needs to be calibrated through the test. After the product is finalized, its stability and consistency are still good.
本发明采用NTC热敏电阻感应PCB温度，从而间接地估算烟弹温度，极大地降低了直接测量烟弹温度难度大、成本高的问题。本发明适用于电磁感应加热电子烟具的温度保持，使电子烟发烟速度、温度与发烟量有符合消费习惯的口感和口味，同时最大限度节省电池电量。The present invention adopts NTC thermistor to sense the PCB temperature, thereby indirectly estimating the temperature of the pod, which greatly reduces the difficulty and high cost of directly measuring the temperature of the pod. The invention is suitable for maintaining the temperature of the electronic cigarette set heated by electromagnetic induction, so that the speed, temperature and volume of the electronic cigarette can have a mouthfeel and taste in line with consumption habits, and at the same time save battery power to the greatest extent.
附图说明Description of drawings
图1为本发明的电路示意图。Fig. 1 is a schematic circuit diagram of the present invention.
图中：电磁感应加热电子烟具1，NTC热敏电阻2，MCU信号处理器3，电源4，参考电阻5，印刷线路板6、电磁感应线圈7、控制器8。In the figure: electromagnetic induction heating electronic cigarette set 1, NTC thermistor 2, MCU signal processor 3, power supply 4, reference resistor 5, printed circuit board 6, electromagnetic induction coil 7, controller 8.
具体实施方式Detailed ways
下面结合附图和具体实施例对本发明作进一步的详细说明，便于清楚地了解本发明，但它们不对本发明构成限定。The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments to facilitate a clear understanding of the present invention, but they do not limit the present invention.
如图1所示，本发明的一种电磁感应加热电子烟具的温度保持控制电路，包括NTC热敏电阻2、参考电阻5、电源4、MCU信号处理器3，电磁感应加热电子烟具1包括印刷线路板PCB6、电磁感应线圈7、控制器8，印刷线路板PCB与电磁感应线圈紧密焊接在一起，电磁感应线圈7加热由控制控制器8，其特征在于：NTC热敏电阻2贴在电磁感应加热电子烟具1的印刷线路板PCB6上，NTC热敏电阻2、参考电阻5、电源4、MCU信号处理器3连接成回路，MCU信号处理器3与电磁感应加热电子烟具1的控制器8相连。NTC热敏电阻2、参考电阻5、电源4、MCU信号处理器3、电磁感应加热电子烟具1均为现有结构，直接购买得到。As shown in FIG. 1 , a temperature maintenance control circuit of an electromagnetic induction heating electronic smoking set of the present invention includes an NTC thermistor 2, a reference resistor 5, a power supply 4, and an MCU signal processor 3. The electromagnetic induction heating electronic smoking set 1 includes a printed circuit board PCB6, an electromagnetic induction coil 7, and a controller 8. The printed circuit board PCB and the electromagnetic induction coil are tightly welded together, and the electromagnetic induction coil 7 is heated by the control controller 8. It is characterized in that: the NTC thermistor 2 is attached to the printed circuit board PCB6 of the electromagnetic induction heating electronic smoking set 1. , the power supply 4 and the MCU signal processor 3 are connected to form a loop, and the MCU signal processor 3 is connected to the controller 8 of the electromagnetic induction heating electronic cigarette set 1 . The NTC thermistor 2, the reference resistor 5, the power supply 4, the MCU signal processor 3, and the electromagnetic induction heating electronic cigarette set 1 are all existing structures and can be purchased directly.
当高频电流通过加热的电磁感应线圈7时，在电磁感应线圈7感抗的作用下，电磁感应线圈7温度也会升高，从而与之紧密焊接在一起的PCB温度也随之升高，NTC阻值即随之变化，NTC两端电压同步发生变化，将这一电压送给MCU信号处理器3，即可测出PCB温度变化，通过标定的数据反推出烟弹的温度变化。When the high-frequency current passes through the heated electromagnetic induction coil 7, the temperature of the electromagnetic induction coil 7 will also increase under the action of the inductive reactance of the electromagnetic induction coil 7, so that the temperature of the PCB tightly welded with it will also increase, and the resistance of the NTC will change accordingly.
具体的检测和控制方法如下：The specific detection and control methods are as follows:
1、消费者按键将电磁感应加热电子烟具1开机。1. The consumer presses the button to turn on the electromagnetic induction heating electronic cigarette set 1 .
2、MCU信号处理器3输出全功率控制信号，使电磁感应加热电子烟具1的电磁感应线圈工作，产生高频交变电磁场对电子烟快速加热至约300度。2. The MCU signal processor 3 outputs a full-power control signal to make the electromagnetic induction coil of the electromagnetic induction heating electronic cigarette set 1 work, and generate a high-frequency alternating electromagnetic field to rapidly heat the electronic cigarette to about 300 degrees.
3、当PCB温度开始急剧上升，说明加热功率已经超出烟弹温度的需要，此时MCU信号处理器3控制降低电磁感应线圈的供电功率，使PCB温度保持在一个合理的水平，那么烟弹的温度也同时被保持在一个合适的水平。3. When the PCB temperature starts to rise sharply, it means that the heating power has exceeded the temperature requirement of the pod. At this time, the MCU signal processor 3 controls to reduce the power supply of the electromagnetic induction coil to keep the PCB temperature at a reasonable level, and the temperature of the pod is also maintained at an appropriate level.
事实上，任何单一控制方式都难以做到最合理的控制水平，实践中往往根据不同工作阶段采用不同的控制方式，才能接近最佳效果。In fact, any single control method is difficult to achieve the most reasonable control level. In practice, different control methods are often used according to different work stages to get close to the best effect.
本说明书中未作详细描述的内容属于本领域专业技术人员公知的现有技术。The content not described in detail in this specification belongs to the prior art known to those skilled in the art.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310221280.8A CN116473303A (en) | 2023-03-09 | 2023-03-09 | A temperature maintenance control circuit for electromagnetic induction heating electronic cigarette set |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310221280.8A CN116473303A (en) | 2023-03-09 | 2023-03-09 | A temperature maintenance control circuit for electromagnetic induction heating electronic cigarette set |
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| CN116473303A true CN116473303A (en) | 2023-07-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202310221280.8A Withdrawn CN116473303A (en) | 2023-03-09 | 2023-03-09 | A temperature maintenance control circuit for electromagnetic induction heating electronic cigarette set |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105595432A (en) * | 2016-01-15 | 2016-05-25 | 广西中烟工业有限责任公司 | Atomized electronic cigarette based on electromagnetic induction heating |
| CN106307614A (en) * | 2015-06-17 | 2017-01-11 | 深圳市新宜康科技有限公司 | Electronic cigarette atomization temperature control method and circuit and electronic cigarette atomization core with controllable temperature |
| CN207220164U (en) * | 2017-09-05 | 2018-04-13 | 聚之点科技（中山）有限公司 | An electromagnetic heating electronic cigarette |
| CN114184403A (en) * | 2021-11-17 | 2022-03-15 | 江西联智集成电路有限公司 | Method and system for testing heating function of electronic cigarette mainboard and electronic equipment |
| CN114587020A (en) * | 2016-05-05 | 2022-06-07 | Jt国际股份公司 | Aerosol Generation System |
-
2023
- 2023-03-09 CN CN202310221280.8A patent/CN116473303A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106307614A (en) * | 2015-06-17 | 2017-01-11 | 深圳市新宜康科技有限公司 | Electronic cigarette atomization temperature control method and circuit and electronic cigarette atomization core with controllable temperature |
| CN105595432A (en) * | 2016-01-15 | 2016-05-25 | 广西中烟工业有限责任公司 | Atomized electronic cigarette based on electromagnetic induction heating |
| CN114587020A (en) * | 2016-05-05 | 2022-06-07 | Jt国际股份公司 | Aerosol Generation System |
| CN207220164U (en) * | 2017-09-05 | 2018-04-13 | 聚之点科技（中山）有限公司 | An electromagnetic heating electronic cigarette |
| CN114184403A (en) * | 2021-11-17 | 2022-03-15 | 江西联智集成电路有限公司 | Method and system for testing heating function of electronic cigarette mainboard and electronic equipment |
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Application publication date: 20230725 |