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Title:
DRY-BURNING PREVENTION DEVICE OF ELECTRONIC CIGARETTE AND CONTROL METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2019/033887
Kind Code:
A1
Abstract:
The present invention relates to a dry-burning prevention device of an electronic cigarette and a control method therefor. The dry-burning prevention device of an electronic cigarette comprises a microcontroller, a boost-buck bridge circuit, an atomizer resistance-value sampling circuit, an atomizer, an atomizer resistance-value detection module and a battery power supplying circuit. The microcontroller is electrically connected, in sequence, to the boost-buck bridge circuit, the atomizer resistance-value sampling circuit, the atomizer and the atomizer resistance-value detection module, and is then connected back to the microcontroller from same; the atomizer resistance-value sampling circuit is further electrically connected to the atomizer resistance-value detection module; a feedback circuit is connected between the atomizer resistance-value sampling circuit and the boost-buck bridge circuit, and the feedback circuit is connected back to the microcontroller, such that the microcontroller adjusts an output voltage of the boost-buck bridge circuit and keeps the output voltage stable; and when a cigarette liquid of an electronic cigarette is to be exhausted during use, and the atomizer resistance-value detection module detects the number of set times when the resistance value of the atomizer continuously exceeds a set dry-burning prevention resistance value, the microcontroller instructs the boost-buck bridge circuit to close the output, and the electronic cigarette automatically stops working.

Inventors:
LIN, Guangrong (A1 Building, Shaer Science Park Ditang RoadShajing Street, Bao'an District, Shenzhen Guangdong 4, 518104, CN)
ZHENG, Xianbin (A1 Building, Shaer Science Park Ditang RoadShajing Street, Bao'an District, Shenzhen Guangdong 4, 518104, CN)
Application Number:
CN2018/096061
Publication Date:
February 21, 2019
Filing Date:
July 18, 2018
Export Citation:
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Assignee:
HUIZHOU HAPPY VAPING TECHNOLOGY LIMITED (5th Floor No, 1 Building,AA1 Technology Huizhou Limited,Dayawan E & T Development Zon, Huizhou Guangdong 0, 516000, CN)
International Classes:
H02H5/00; A24F47/00; H02J7/00
Foreign References:
CN203618789U2014-06-04
US20140014126A12014-01-16
CN106343617A2017-01-25
CN107404107A2017-11-28
CN207251178U2018-04-17
CN207236087U2018-04-17
CN107440157A2017-12-08
Attorney, Agent or Firm:
SHENZHEN HUIBANG INTELLECTUAL PROPERTY AGENCY FIRM (5C1 1 Building, Finance BaseNo. 8, Kefa Road, High-Tech Par, ShenZhen Guangdong 7, 518057, CN)
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