Patents by Inventor Jianfu Liu

Jianfu Liu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11589609
    Abstract: A circuit for an ultrasonic electronic cigarette and the ultrasonic electronic cigarette are disclosed. The ultrasonic electronic cigarette includes an ultrasonic atomization sheet, a control circuit, a first drive oscillation circuit, a second drive oscillation circuit, and a power circuit. The control circuit is electrically connected to a first end of the ultrasonic atomization sheet through the first drive oscillation circuit, and the control circuit is electrically connected to a second end of the ultrasonic atomization sheet through the second drive oscillation circuit. The circuit for the ultrasonic electronic cigarette further includes a detection circuit. An output end of the detection circuit is electrically connected to the control circuit. And a detection end of the detection circuit is connected between the ultrasonic atomization sheet and the first drive oscillation circuit, or between the ultrasonic atomization sheet and the second drive oscillation circuit.
    Type: Grant
    Filed: June 7, 2018
    Date of Patent: February 28, 2023
    Assignee: CHINA TOBACCO HUNAN INDUSTRIAL CO, LTD.
    Inventors: Jianfu Liu, Kejun Zhong, Xiaoyi Guo, Wei Huang, Xinqiang Yin, Jianhua Yi, Shengbo Li, Kaiwei Shen
  • Publication number: 20230020762
    Abstract: A liquid cartridge assembly for an electronic cigarette and an atomizer is disclosed. The liquid cartridge assembly comprises a liquid cartridge housing and a first plug fastened to each other, a liquid cartridge is disposed between the liquid cartridge housing and the first plug, the first plug is provided with a through groove communicated with the liquid cartridge, two ends of liquid guide cotton pass through the through groove to extend into the liquid cartridge, a plurality of second protrusions for squeezing the liquid guide cotton are disposed in the through groove and an air passing gap for supplementing air to the liquid cartridge is formed between adjacent second protrusions. Additional aspects and related embodiments are disclosed further herein.
    Type: Application
    Filed: September 4, 2020
    Publication date: January 19, 2023
    Applicant: CHINA TOBACCO HUNAN INDUSTRIAL CO., LTD.
    Inventors: Jianfu Liu, Kejun Zhong, Xiaoyi Guo, Wei Huang, Xinqiang Yin, Jianhua Yi, Lizhou Shen
  • Publication number: 20230013741
    Abstract: An ultrasonic atomizer and an electronic cigarette are disclosed. In an embodiment, the ultrasonic atomizer comprises a liquid storage assembly (1), a liquid guiding assembly (2) and an atomization assembly (3). A liquid compartment (13) is provided inside the liquid storage assembly (1). The atomization assembly (3) comprises an ultrasonic atomization sheet (33). The liquid guiding assembly (2) is a ceramic liquid guiding member (21). The ultrasonic atomization sheet (33) is vertically placed. An upper section of the ceramic liquid guiding member (21) is in communication with the liquid compartment (13). A lower section of the ceramic liquid guiding member (21) directly contacts at least one atomization surface of the ultrasonic atomization sheet (33). An atomization region (331) of the ultrasonic atomization sheet (33) is exposed under the ceramic liquid guiding member (21). These and other aspects of embodiments are disclosed herein.
    Type: Application
    Filed: December 15, 2020
    Publication date: January 19, 2023
    Applicant: CHINA TOBACCO HUNAN INDUSTRIAL CO., LTD.
    Inventors: Jianfu Liu, Kejun Zhong, Xiaoyi Guo, Xinqiang Yin, Jianhua Yi, Chaoxiang Huang, Yongquan Zhou
  • Publication number: 20220400747
    Abstract: Disclosed are a full-wave drive circuit for an ultrasonic atomizing sheet and an ultrasonic electronic cigarette. In an embodiment, the ultrasonic atomizing sheet full-wave drive circuit comprises a power supply module, a microprocessor, a high-frequency square wave generation circuit, an NMOS transistor and a resonance circuit configured to convert, on the basis of the NMOS transistor, a voltage signal outputted by the high-frequency square wave generation circuit into a full-wave oscillation signal, so as to drive the ultrasonic atomizing sheet to perform full-wave oscillation. A disclosed embodiment has low requirements for a boost module, low loss of the boost module, high power conversion efficiency, small volume, low loss of NMOS transistor and low cost, is easy for debugging, and has high reliability and good atomization effect.
    Type: Application
    Filed: November 26, 2020
    Publication date: December 22, 2022
    Applicant: CHINA TOBACCO HUNAN INDUSTRIAL CO., LTD.
    Inventors: Jianfu Liu, Kejun Zhong, Xiaoyi Guo, Xinqiang Yin, Jianhua Yi, Yuebin Deng
  • Patent number: 11528935
    Abstract: An ultrasonic atomization type electronic cigarette includes an ultrasonic atomizer having an ultrasonic atomization sheet, an electronic cigarette housing, an upper cover assembly, and a locking structure. The angle ? between the ultrasonic atomization sheet and the central axis of the electronic cigarette is 5° to 85°, preferably 15° to 55°. The housing is provided with an air inlet groove. A first support in the housing includes a receiving cavity for receiving the ultrasonic atomizer. The upper cover assembly may be used for opening the receiving cavity, and the locking structure may be used for locking the upper cover assembly. A liquid guide structure in the atomizer may include a liquid guide body in which a side of a first liquid guide layer is sandwiched between a side of a second liquid guide layer and an ultrasonic atomization surface.
    Type: Grant
    Filed: April 13, 2018
    Date of Patent: December 20, 2022
    Assignee: CHINA TOBACCO HUNAN INDUSTRIAL CO., LTD.
    Inventors: Jianfu Liu, Kejun Zhong, Xiaoyi Guo, Wei Huang, Hong Yu, Yuangang Dai, Xinqiang Yin, Jianhua Yi, Youlin He
  • Publication number: 20220395023
    Abstract: The present invention relates to an electronic cigarette set, in particular to an ultrasonic atomizer, comprising an e-liquid guide assembly. In an embodiment, the e-liquid guide assembly comprises an e-liquid guide ceramic, e-liquid guide cotton, and springs located between the e-liquid guide ceramic and the e-liquid guide cotton and abut the e-liquid guide cotton against an atomization piece. Embodiments of the present invention use a combination of an e-liquid guide ceramic and e-liquid guide cotton to guide an e-liquid. Further details are disclosed herein.
    Type: Application
    Filed: November 6, 2020
    Publication date: December 15, 2022
    Applicant: CHINA TOBACCO HUNAN INDUSTRIAL GO., LTD.
    Inventors: Jianfu Liu, Kejun Zhong, Xiaoyi Guo, Xinqiang Yin, Jianhua Yi, Yongquan Zhou
  • Patent number: 11523634
    Abstract: An ultrasonic electronic cigarette atomizing core and atomizer is provided, the atomizing core including an atomizing core sleeve, and tobacco tar guide cotton and an atomizing piece in the atomizing core sleeve.
    Type: Grant
    Filed: December 17, 2016
    Date of Patent: December 13, 2022
    Assignee: CHINA TOBACCO HUNAN INDUSTRIAL CO., LTD.
    Inventors: Jianfu Liu, Kejun Zhong, Xiaoyi Guo, Wei Huang, Yuangang Dai, Xinqiang Yin, Jianhua Yi, Hong Yu, Lizhou Shen
  • Publication number: 20220295876
    Abstract: An electronic cigarette atomizing core (4) and an atomizer are disclosed. The electronic cigarette atomizing core (4) includes an outer sleeve (42) and an inner sleeve (43), wherein the outer sleeve (42) is provided with a liquid passing port (421). An ultrasonic atomization piece (46) is arranged in an inner cavity of the outer sleeve (42); and an atomization cavity (41) is provided between the bottom of the inner sleeve (43) and the ultrasonic atomization piece (46). A liquid guide cotton (45) in communication with the liquid passing port (421) is sandwiched between the outer sleeve (42) and the inner sleeve (43). The inner sleeve (43) is longitudinally provided with a main air groove (431) and an auxiliary air groove (4321) at intervals. The cross sectional area of the auxiliary air groove (4321) is ¼ to ? the size of the cross sectional area of the main air groove (431). The main air groove (431) is in communication with the atomization cavity (41) to form a first air inlet channel.
    Type: Application
    Filed: August 10, 2020
    Publication date: September 22, 2022
    Applicant: CHINA TOBACCO HUNAN INDUSTRIAL CO., LTD.
    Inventors: JIANFU LIU, Kejun Zhong, Xiaoyi Guo, Wei Huang, Xinqiang Yin, Jianhua Yi, Yongquan Zhou
  • Patent number: 11445752
    Abstract: An ultrasonic electronic cigarette atomizer and an electronic cigarette are disclosed. The atomizer includes a housing, a nozzle assembly that is connected to one end of the housing, an air inlet channel, an air outlet channel, and an ultrasonic atomization sheet that is disposed in the housing. The air inlet channel, an atomization region of the ultrasonic atomization sheet, and the air outlet channel are sequentially communicated. An outlet of the air inlet channel is opposite to the atomization region of the ultrasonic atomization sheet. The nozzle assembly comprises a nozzle holder mounted to one end of the housing, and a suction portion on the nozzle holder communicated with the air outlet channel.
    Type: Grant
    Filed: May 16, 2018
    Date of Patent: September 20, 2022
    Assignee: CHINA TOBACCO HUNAN INDUSTRIAL CO., LTD.
    Inventors: Jianfu Liu, Kejun Zhong, Xiaoyi Guo, Wei Huang, Xinqiang Yin, Jianhua Yi, Yang Wang, Yongquan Zhou
  • Patent number: 11439180
    Abstract: An ultrasonic electronic cigarette is disclosed. The electronic cigarette includes an atomizer (1) and a battery assembly (2) detachably connected to each other. The atomizer (1) comprises an ultrasonic atomization sheet (3), and the battery assembly (2) comprises a first battery electrode (4) and a second battery electrode (5) for supplying power to the atomizer (1). When the atomizer (1) is connected to the battery assembly (2), a first pole of the ultrasonic atomization sheet (3) is electrically connected to the first battery electrode (4), and a second pole of the ultrasonic atomization sheet (3) is electrically connected to the second battery electrode (5).
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: September 13, 2022
    Assignee: CHINA TOBACCO HUNAN INDUSTRIAL CO., LTD.
    Inventors: Jianfu Liu, Kejun Zhong, Xiaoyi Guo, Wei Huang, Hong Yu, Yuangang Dai, Xinqiang Yin, Jianhua Yi, Yongquan Zhou, Yang Wang
  • Publication number: 20220279857
    Abstract: Disclosed is an electronic cigarette atomizer including a liquid cartridge (6) and an ultrasonic atomization piece (42) mounted vertically. The liquid cartridge (6) is located above the ultrasonic atomization piece (42), a liquid guide channel (311) communicated with the liquid cartridge (6) is disposed below the liquid cartridge (6), a liquid outlet (331) is horizontally disposed in the liquid guide channel (311), and the caliber of the liquid outlet (331) is smaller than that of the liquid guide channel (311); and liquid guide cotton (43) is horizontally mounted across the ultrasonic atomization piece (42). The liquid guide cotton (43) is in contact with or attached to an atomization surface of the ultrasonic atomization piece (42), and the liquid outlet (331) abuts against the liquid guide cotton (43). With the electronic cigarette atomizer, when smoking, e-liquid is supplied in time, and e-liquid supply and ultrasonic atomization are balanced, such that the burning phenomenon can be prevented.
    Type: Application
    Filed: August 17, 2020
    Publication date: September 8, 2022
    Applicant: CHINA TOBACCO HUNAN INDUSTRIAL CO., LTD.
    Inventors: JIANFU Liu, Kejun Zhong, Xiaoyi Guo, Wei Huang, Xinqiang Yin, Jianhua Yi, Chaoxiang Huang, Yongquan Zhou
  • Publication number: 20220273037
    Abstract: Disclosed are an electronic cigarette atomization core (4) and atomizer. The electronic cigarette atomization core (4) includes an ultrasonic atomization piece (46) disposed horizontally, a liquid guide cotton (45) disposed above the ultrasonic atomization piece (46), and an electrode plate (47) placed on the liquid guide cotton (45). Each end of the electrode plate (47) is provided with a curved segment (472). The curved segment (472) includes a first contact (4721) located above a second contact (4722), wherein the first contact (4721) and the second contact (4722) are electrically connected but are distant horizontally, and the second contact (4722) abuts against an atomization surface electrode of the ultrasonic atomization piece (46) to form an electrical connection.
    Type: Application
    Filed: August 14, 2020
    Publication date: September 1, 2022
    Applicant: CHINA TOBACCO HUNAN INDUSTRIAL CO., LTD.
    Inventors: Jianfu Liu, Kejun Zhong, Xiaoyi Guo, Wei Huang, Xinqiang Yin, Jianhua Yi, Yongquan Zhou
  • Patent number: 11431242
    Abstract: The present invention discloses an oscillation control circuit for an ultrasonic atomization sheet, and an ultrasonic electronic cigarette. The oscillation control circuit includes a DC boost module, a separately excited excitation module, and a microcontroller. A power module is connected to the ultrasonic atomization sheet through the DC boost module and the separately excited excitation module, and the separately excited excitation module is electrically connected to the microcontroller.
    Type: Grant
    Filed: January 5, 2018
    Date of Patent: August 30, 2022
    Assignee: CHINA TOBACCO HUNAN INDUSTRIAL CO., LTD.
    Inventors: Jianfu Liu, Kejun Zhong, Xiaoyi Guo, Wei Huang, Hong Yu, Yuangang Dai, Xinqiang Yin, Jianhua Yi, Guangping Cao
  • Publication number: 20220240589
    Abstract: An atomizer for an electronic cigarette is provided. The atomizer comprises a liquid cartridge device with a liquid outlet, atomization cotton, and an ultrasonic atomization piece. The middle of the atomization cotton abuts against a central area of the ultrasonic atomization piece by means of a spring to form an atomization zone. An end portion of the atomization cotton is pressed against the bottom of the liquid cartridge device and covers the liquid outlet. An atomization cavity is provided between the ultrasonic atomization piece and the bottom of the liquid cartridge device. An atomization cavity gas inlet and an atomization cavity gas outlet are provided at the top of the atomization cavity. The atomization cavity gas inlet (501) and the liquid outlet (321) are staggered.
    Type: Application
    Filed: June 15, 2020
    Publication date: August 4, 2022
    Applicant: CHINA TOBACCO HUNAN INDUSTRIAL CO., LTD.
    Inventors: Jianfu Liu, Kejun Zhong, Xiaoyi Guo, Wei Huang, Xinqiang Yin, Jianhua YI, Chaoxiang Huang, Yongquan Zhou
  • Patent number: 11375750
    Abstract: Disclosed is an atomizer, comprising an atomizer body, a suction nozzle assembly, an air inlet, an atomization sheet, a tobacco tar chamber, a tobacco tar guide device and an air outflow passage, in which a tobacco tar separation chamber is provided in the middle of the tobacco tar chamber and an accommodating chamber is provided in the tobacco tar separation chamber.
    Type: Grant
    Filed: October 17, 2017
    Date of Patent: July 5, 2022
    Assignee: CHINA TOBACCO HUNAN INDUSTRIAL CO., LTD.
    Inventors: Jianfu Liu, Kejun Zhong, Xiaoyi Guo, Wei Huang, Hong Yu, Yuangang Dai, Xinqiang Yin, Jianhua Yi, Lizhou Shen
  • Patent number: 11369140
    Abstract: An ultrasonic electronic cigarette atomizer is disclosed, including an atomization core, an atomizer housing, and a liquid bin. When liquid is filled into the liquid bin, the liquid passing hole is closed and the air outlet channel is closed, to avoid leakage or immersion of liquid, the atomizer is clean and sanitary, waste is avoided, and cost is saved. The whole operation is very simple, the atomization core is convenient to replace, hands are not stained with liquid, and the liquid is convenient to fill. The cigarette liquid is unlikely to flow out through the liquid filling hole, and large granular cigarette liquid generated in atomization can be recycled.
    Type: Grant
    Filed: April 13, 2018
    Date of Patent: June 28, 2022
    Assignee: CHINA TOBACCO HUNAN INDUSTRIAL CO., LTD.
    Inventors: Jianfu Liu, Kejun Zhong, Xiaoyi Guo, Wei Huang, Hong Yu, Yuangang Dai, Xinqiang Yin, Jianhua Yi, Lizhou Shen
  • Publication number: 20220151301
    Abstract: An electronic cigarette atomizing core and an atomizer are provided. The electronic cigarette atomizing core comprises an outer sleeve and an inner sleeve which are sleeved on each other. An atomization cavity is formed below the inner sleeve, and the outer sleeve is provided with a first e-liquid passing port. Two ends of e-liquid guide cotton are sandwiched between the outer sleeve and the inner sleeve, and the two ends of the e-liquid guide cotton cover the first e-liquid passing port. The inner sleeve is provided with an air supply groove for delivering air to an e-liquid tank. One end of the air supply groove is communicated with the first e-liquid passing port, and the other end thereof is communicated with the atomization cavity.
    Type: Application
    Filed: March 13, 2020
    Publication date: May 19, 2022
    Applicant: CHINA TOBACO HUNAN INDUSTRIAL CO., LTD.
    Inventors: Jianfu Liu, Kejun Zhong, Xiaoyi Guo, Wei Huang, Xinqiang Yin, Jianhua Yi, Lizhou Shen, Yongquan Zhou
  • Publication number: 20220142246
    Abstract: An electronic cigarette atomizing core and an atomizer are provided. The atomizing core comprises an outer sleeve and an inner sleeve which are sleeved on each other. The side wall of the outer sleeve is provided with a first e-liquid passing port communicated with an e-liquid tank. Two ends of e-liquid guide cotton are sandwiched between the outer sleeve and the inner sleeve. The two ends of the e-liquid guide cotton cover the first e-liquid passing port. The bottom of the inner sleeve is provided with an atomization cavity. The side wall of the inner sleeve is provided with a plurality of air inlet grooves penetrating axially and communicated with the atomization cavity.
    Type: Application
    Filed: March 13, 2020
    Publication date: May 12, 2022
    Applicant: CHINA TOBACCO HUNAN INDUSTRIAL CO., LTD.
    Inventors: Jianfu Liu, Kejun Zhong, Xiaoyi Guo, Wei Huang, Xinqiang Yin, Jianhua Yi, Yongquan Zhou
  • Patent number: 11324253
    Abstract: A disposable cigarette cartridge, atomizer and electronic cigarette, wherein the disposable cigarette cartridge comprises a hollow shell, a tobacco tar storage device located in the shell, a suction nozzle connected with the upper end of the shell, a tobacco tar guide seat connected with the lower end of the shell, and a tobacco tar guide body installed on the tobacco tar guide seat; the tobacco tar guide body extends into the tobacco tar storage device; and an air passage is arranged in the shell, one end of the air passage is communicated with the suction nozzle, and the other end of the air passage is communicated with a heating surface of the tobacco tar guide body.
    Type: Grant
    Filed: May 2, 2017
    Date of Patent: May 10, 2022
    Assignee: CHINA TOBACCO HUNAN INDUSTRIAL CO., LTD.
    Inventors: Jianfu Liu, Kejun Zhong, Xiaoyi Guo, Wei Huang, Yuangang Dai, Xinqiang Yin, Jianhua Yi, Hong Yu, Youlin He, Yongquan Zhou
  • Patent number: 11278055
    Abstract: An ultrasonic electronic cigarette atomizer and electronic cigarette are disclosed. The atomizer includes an e-liquid storage assembly and an atomization core detachably connected to the e-liquid storage assembly. The atomization core includes an ultrasonic atomization sheet. The e-liquid storage assembly includes an e-liquid chamber and an e-liquid outlet for communicating an atomization surface of the ultrasonic atomization sheet with the e-liquid chamber. The e-liquid storage assembly further includes a moving assembly that can move in the direction of assembling/disassembling the atomization core to open/close the e-liquid outlet. When the atomization core is connected with the e-liquid storage assembly, the atomization core drives the moving assembly to move and open the e-liquid outlet. When the atomization core is disconnected from the e-liquid storage assembly, the moving assembly is reset and closes the e-liquid outlet.
    Type: Grant
    Filed: May 16, 2018
    Date of Patent: March 22, 2022
    Assignee: CHINA TOBACCO HUMAN INDUSTRIAL CO., LTD.
    Inventors: Jianfu Liu, Kejun Zhong, Xiaoyi Guo, Wei Huang, Xinqiang Yin, Jianhua Yi, Yongquan Zhou