CN107173850A - A kind of electrical heating distillation type non-burning cigarette - Google Patents

A kind of electrical heating distillation type non-burning cigarette Download PDF

Info

Publication number
CN107173850A
CN107173850A CN201710456460.9A CN201710456460A CN107173850A CN 107173850 A CN107173850 A CN 107173850A CN 201710456460 A CN201710456460 A CN 201710456460A CN 107173850 A CN107173850 A CN 107173850A
Authority
CN
China
Prior art keywords
section
atomization
bringing
sections
heating pipe
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.)
Granted
Application number
CN201710456460.9A
Other languages
Chinese (zh)
Other versions
CN107173850B (en
Inventor
王金棒
程多福
高运谦
邱纪青
孟庆华
崔凯
汪志波
洪群业
刘亚丽
郑路
洪广峰
张仕华
冯伟华
郑新章
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhengzhou Tobacco Research Institute of CNTC
Original Assignee
Zhengzhou Tobacco Research Institute of CNTC
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Zhengzhou Tobacco Research Institute of CNTC filed Critical Zhengzhou Tobacco Research Institute of CNTC
Priority to CN201710456460.9A priority Critical patent/CN107173850B/en
Publication of CN107173850A publication Critical patent/CN107173850A/en
Application granted granted Critical
Publication of CN107173850B publication Critical patent/CN107173850B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • A24F47/008

Landscapes

  • Manufacture Of Tobacco Products (AREA)

Abstract

A kind of electrical heating distillation type non-burning cigarette, it is characterised in that:Including the cell section being sequentially connected, circuit control module section, sections of atomization, bringing-up section and tobacco rod with filter tip, sections of atomization is provided with fluid reservoir, controlled by circuit control module and the spray chamber that is connected with fluid reservoir, be provided with Miniature atomizer in spray chamber;Bringing-up section be provided with electrically connected with circuit control module for the hollow heating pipe that inserts in tobacco rod, several passages are evenly equipped with hollow heating pipe tube wall, the tapered structure in insertion termination of hollow heating pipe, the bottom of hollow heating pipe are directly connected with spray chamber.The present invention makes the atomization solvent of sections of atomization enter cigarette core bringing-up section by suction, by content of the steam distillation effect increase tobacco aroma component to tobacco-containing material in flue gas, the utilization rate of tobacco-containing material is improved while non-combustion type cigarette tolerance homogeneity is ensured.

Description

A kind of electrical heating distillation type non-burning cigarette
Technical field:
The present invention relates to the cigarette that do not burn is heated, particularly a kind of electrical heating distillation type non-burning cigarette in the cigarette, is heated Solvent vapo(u)r afterwards is fully contacted with tobacco-containing material in smoke, beneficial to the release of flavor matter in tobacco, can preferably be improved The sucking quality and amount of smoke for the new cigarette that do not burn are heated, with higher application value.
Background technology:
Burning type cigarette does not generate heat generally by electrical heating elements for heating at present, by being added to the tobacco-containing material contacted Hot destructive distillation and flue gas is provided.Existing patented technology:" the incombustible cigarette of heating "(Application number 201310143670.4, publication number CN103202538A)The cigarette of heating shell is put there is provided a kind of cigarette in-core." a kind of non-burning cigarette of built-in heater "(Shen Please number 201620977625.8, publication number CN206062136U)There is provided a kind of non-burning cigarette of built-in heater.The two It is the portable rolling apparatus for cigarette that the flue gas for being available for suction is produced by heater strip heating circumference tobacco.But such non-burning cigarette Generally existing exhaust gas volumn is relatively low in actual aspiration procedure and the low problem of tobacco-containing material utilization rate, and suction experience sense needs into one Step lifting.
The existing extensive research in terms of tobacco smoke is with composition extraction of solvent distillation extraction technology, and in tobacco and other agricultures Effect is notable in terms of volatility, the extraction of semi-volatility component in crop(Li Yanqiang, Xian can method Simultaneous distillations and water Steam distillation method separation analysis tobacco volatile, comparison [J] the tobaccos science and technology of half volatile neutral compound, 2000, (02): 18-21.).But there is not the relevant report in terms of cigarette that such technology is not burnt applied to heating in the prior art.
The content of the invention:
The present invention exactly at present heating not burning type cigarette the deficiencies in the prior art and distillation technique in terms of extraction Advantage and a kind of non-combustion-type cigarette with distillation type structure provided.This cigarette compared with prior art, with smoke Foot, tobacco-containing material utilization rate height and other effects.
The present invention is achieved through the following technical solutions:
A kind of electrical heating distillation type non-burning cigarette, including be sequentially connected cell section, circuit control module section, sections of atomization, plus Hot arc and the tobacco rod with filter tip, fluid reservoir is provided with sections of atomization, controlled by circuit control module and and liquid storage Miniature atomizer is provided with the spray chamber of room connection, spray chamber;Bringing-up section is provided with what is electrically connected with circuit control module Several passages are evenly equipped with for inserting on the hollow heating pipe in tobacco rod, hollow heating pipe tube wall, hollow heating pipe The insertion tapered structure in termination, the bottom of hollow heating pipe are directly connected with spray chamber;Liquid to be atomized in the fluid reservoir Can be one or more of mixing in water, ethanol, propane diols, glycerine, glyceryl triacetate, diacetine.The battery Section, circuit control module section, sections of atomization, bringing-up section section are that circle passes sequentially through threaded connection or bite type connection, are easy to Dismounting, cleaning and maintenance.
Thermal insulation layer is equipped with outside sections of atomization, bringing-up section, was both easy to consumer hand-held, there is heat-insulating property again, is improved Capacity usage ratio.
The Miniature atomizer set in the spray chamber(It is commercially available)Can be electrical heating atomizing type, or ultrasonic mist Change mode.
The passage is circular hole, elliptical aperture or bar hole.
The hollow heating pipe length is less than tobacco rod length, and area of section is not less than the 5% of tobacco rod area of section.
In use, tobacco rod is inserted into smoke chamber(I.e. in bringing-up section inner chamber), while in hollow heating pipe insertion cigarette shreds, By control circuit so that spray chamber liquid be atomized, atomizing steam is brought in into pipe tobacco body through hollow heating pipe by suction operation, Heating tube is heated to tobacco-containing material around simultaneously, is entered after distillation extraction in situ in smoker mouthful.The tobacco rod is once Property use, the tobacco rod preferably have hollow structure, be easy to the insertion of heating tube, can so avoid insertion when resistance make With.Atomized liquid in fluid reservoir, which is finished, to be added, and battery is replaceable or device is chargeable in itself.
The beneficial effects of the invention are as follows:Atomization solvent is set to enter cigarette core bringing-up section by suction, by tobacco material Content of the steam distillation effect increase tobacco aroma component of material in flue gas, is ensureing non-combustion type cigarette tolerance homogeneity While improve tobacco-containing material utilization rate.
Brief description of the drawings
Fig. 1 is structural representation of the invention,
A kind of structural representation of Fig. 2 hollow heating pipes(Circular port),
Another structural representation of Fig. 3 hollow heating pipes(Circular port+bar hole),
In figure:1. cell section;2. circuit control module section;3. sections of atomization, 31. fluid reservoirs, 32. spray chambers, 33. Miniature atomizeds Device;4. bringing-up section, 41. hollow heating pipes, 42. passages, 5. thermal insulation layers;6. tobacco rod;7. filter tip.
Embodiment
The present invention is described further below in conjunction with accompanying drawing:
As shown in Figure 1:A kind of electrical heating distillation type non-burning cigarette, including cell section 1, the circuit control module section being sequentially connected 2nd, sections of atomization 3, bringing-up section 4 and the tobacco rod 6 with filter tip 7, are provided with fluid reservoir 31 and by circuit control in sections of atomization 3 Miniature atomizer 33, the storage are provided with spray chamber 32 that is that molding block is controlled and being connected with fluid reservoir 31, the spray chamber Liquid to be atomized in liquid room 31 can be one kind in water, ethanol, propane diols, glycerine, glyceryl triacetate, diacetine Or several mixing.Be provided with bringing-up section 4 electrically connected with circuit control module for the hollow heating inserted in tobacco rod 6 Be evenly equipped with several passages 42 on pipe 41, hollow heating pipe tube wall, the tapered structure in insertion termination of hollow heating pipe 41, in The bottom of empty heating tube 41 is directly connected with spray chamber 32.Thermal insulation layer 5 is provided with sections of atomization 3, the outside of bringing-up section 4.
Cell section 1, circuit control module section 2, sections of atomization 3, bringing-up section 4 pass sequentially through threaded connection or bite type connection.
The passage 42 is circular hole, elliptical aperture or bar hole(Referring to Fig. 2, Fig. 3).
A kind of preferred embodiment is that Miniature atomizer is electrical heating atomising device, and hollow heating pipe internal diameter is 4 mm, heating tube On circular hole is distributed with(Fig. 2), circular hole is evenly distributed, a diameter of 0.5 mm, and spacing is 2 mm, and atomized liquid is water, heating tube Temperature is 110 DEG C, is designated as 1#.
Another preferred embodiment is that Miniature atomizer is electrical heating atomising device, and hollow heating pipe internal diameter is 4 mm, heating Circular hole and bar hole are distributed with pipe, distributes alternately(Fig. 3)Spacing is 2 mm, and atomized liquid is ethanol and glyceryl triacetate (1:1)Mixed solution, heating tube temperature is 240 DEG C, is designated as 2#.
Comparative sample, lacks sections of atomization compared with the present invention, and hollow heating pipe internal diameter is that circle is distributed with 4 mm, heating tube Hole(Fig. 2), circular hole is evenly distributed, a diameter of 0.5 mm, and spacing is 2 mm, and heating tube temperature is 110 DEG C, is designated as contrasting 1#.
Comparative sample, lacks sections of atomization compared with the present invention, and hollow heating pipe internal diameter is that circle is distributed with 4 mm, heating tube Hole and bar hole, distribute alternately(Fig. 3)Spacing is 2 mm, and heating tube temperature is 240 DEG C, is designated as contrasting 2#.
Cigarette is used with the cigarette in patent with hollow structure.The internal diameter of hollow tube is 4.5 mm.
Using the method disclosed in patent CN201710051144.3 have to 5 kinds in four sample flue gases it is burnt it is fragrant and sweet into Divide and detected, the results are shown in Table 1.
Table 1
Project 1#/μ g/ branch Contrast 1# μ g/ branch 2# μ g/ branch Contrast 2# μ g/ branch
Guaiacol 16.21 8.60 20.14 12.56
2,6- xylenols 0.25 0.14 0.28 0.21
3- hydroxy benzaldehydes 4.87 3.21 6.46 4.52
3- hydroxy acetophenones 3.64 2.11 5.89 4.35
2- (4- hydroxyphenyls) ethanol 18.23 14.36 21.55 16.48
Result be can be seen that under steam distillation invigoration effect from table, and the cause in flue gas aerosol is transferred in tobacco-containing material Fragrant component content is greatly improved.

Claims (5)

1. a kind of electrical heating distillation type non-burning cigarette, it is characterised in that:Including be sequentially connected cell section, circuit control module Section, sections of atomization, bringing-up section and the tobacco rod with filter tip, fluid reservoir is provided with, by circuit control module control in sections of atomization And the spray chamber that is connected with fluid reservoir, be provided with Miniature atomizer in spray chamber;It is provided with bringing-up section and controls mould with circuit Block electrical connection for the hollow heating pipe that inserts in tobacco rod, be evenly equipped with several passages on hollow heating pipe tube wall, in The tapered structure in insertion termination of empty heating tube, the bottom of hollow heating pipe are directly connected with spray chamber, cell section, circuit control Modular segment, sections of atomization, bringing-up section pass sequentially through threaded connection or bite type connection;Liquid to be atomized in the fluid reservoir is One or more of mixing in water, ethanol, propane diols, glycerine, glyceryl triacetate, diacetine.
2. electrical heating distillation type non-burning cigarette according to claim 1, it is characterised in that:Outside sections of atomization, bringing-up section Face is equipped with thermal insulation layer.
3. electrical heating distillation type non-burning cigarette according to claim 1, it is characterised in that:The Miniature atomizer can be Electrical heating atomizing type or ultrasonic atomizatio mode.
4. electrical heating distillation type non-burning cigarette according to claim 1, it is characterised in that:The passage be circular hole, Elliptical aperture or bar hole.
5. electrical heating distillation type non-burning cigarette according to claim 1, it is characterised in that:The hollow heating pipe length Less than tobacco rod length, area of section is not less than the 5% of tobacco rod area of section.
CN201710456460.9A 2017-06-16 2017-06-16 Electric heating distillation type non-combustion cigarette Active CN107173850B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710456460.9A CN107173850B (en) 2017-06-16 2017-06-16 Electric heating distillation type non-combustion cigarette

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710456460.9A CN107173850B (en) 2017-06-16 2017-06-16 Electric heating distillation type non-combustion cigarette

Publications (2)

Publication Number Publication Date
CN107173850A true CN107173850A (en) 2017-09-19
CN107173850B CN107173850B (en) 2020-11-10

Family

ID=59835429

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710456460.9A Active CN107173850B (en) 2017-06-16 2017-06-16 Electric heating distillation type non-combustion cigarette

Country Status (1)

Country Link
CN (1) CN107173850B (en)

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107455801A (en) * 2017-09-22 2017-12-12 中国烟草总公司郑州烟草研究院 A kind of non-burning portable rolling apparatus for cigarette of electric heating type
CN108095203A (en) * 2018-02-09 2018-06-01 昆明纳太科技有限公司 A kind of electrical heating is not burnt cigarette radiant type heating unit
CN108552597A (en) * 2018-03-09 2018-09-21 达文金属制品有限公司 A kind of heat generating device and electronic cigarette
CN108567176A (en) * 2018-07-04 2018-09-25 云南中烟工业有限责任公司 A kind of aerosol generating device and its application method
CN108669663A (en) * 2018-05-31 2018-10-19 赵雪 It is a kind of to heat the cigarette that do not burn
CN109222250A (en) * 2018-10-26 2019-01-18 深圳伊卡普科技有限公司 Built-in pipe tobacco heating core
CN110173885A (en) * 2019-04-18 2019-08-27 深圳市博迪科技开发有限公司 A kind of heating structure of atomizer and atomizer
CN110944532A (en) * 2017-10-30 2020-03-31 韩国烟草人参公社 Aerosol generating device
CN111480893A (en) * 2020-03-25 2020-08-04 内蒙古昆明卷烟有限责任公司 Application of biological enzyme in preparing novel tobacco product capable of producing fragrance without heating
CN112055546A (en) * 2018-05-01 2020-12-08 日本烟草产业株式会社 Roll paper for non-combustion heating type smoking article, non-combustion heating type smoking article and electric heating type smoking system
CN112074342A (en) * 2020-03-05 2020-12-11 徐毅 Aerosol-generating core rod, aerosol-generating base material, and aerosol-generating device
US11478015B2 (en) 2017-10-30 2022-10-25 Kt&G Corporation Vaporizer of an aerosol generating device having a leakage-preventing structure
US11528936B2 (en) 2017-10-30 2022-12-20 Kt&G Corporation Aerosol generating device
US11622580B2 (en) 2017-10-30 2023-04-11 Kt&G Corporation Aerosol generation device and generation method
US11622579B2 (en) 2017-10-30 2023-04-11 Kt&G Corporation Aerosol generating device having heater
US11700886B2 (en) 2017-10-30 2023-07-18 Kt&G Corporation Aerosol generating device and heater assembly for aerosol generating device
US11700884B2 (en) 2017-10-30 2023-07-18 Kt&G Corporation Aerosol generation device and heater for aerosol generation device
US11744287B2 (en) 2017-10-30 2023-09-05 Kt&G Corporation Aerosol generating device and method for controlling same
US11974611B2 (en) 2017-10-30 2024-05-07 Kt&G Corporation Method for controlling temperature of heater included in aerosol generation device according to type of cigarette, and aerosol generation device for controlling temperature of heater according to type of cigarette

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102356930A (en) * 2011-07-12 2012-02-22 刘秋明 Electronic cured tobacco
CN203182018U (en) * 2013-03-22 2013-09-11 上海烟草集团有限责任公司 Tobacco aspirator
CN103859605A (en) * 2014-02-21 2014-06-18 红云红河烟草(集团)有限责任公司 Stepping uniform electric heating cigarette
CN104397876A (en) * 2014-10-24 2015-03-11 深圳市劲嘉科技有限公司 Dual-function low-temperature non-burning smoking set
CN104886779A (en) * 2015-04-30 2015-09-09 上海烟草集团有限责任公司 Novel cigarette replacement core and smoking set
CN104983073A (en) * 2015-07-07 2015-10-21 深圳市赛尔美电子科技有限公司 Cigarette distilling device
CN207023242U (en) * 2017-06-16 2018-02-23 中国烟草总公司郑州烟草研究院 A kind of non-burning cigarette of electrical heating distillation type

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102356930A (en) * 2011-07-12 2012-02-22 刘秋明 Electronic cured tobacco
CN203182018U (en) * 2013-03-22 2013-09-11 上海烟草集团有限责任公司 Tobacco aspirator
CN103859605A (en) * 2014-02-21 2014-06-18 红云红河烟草(集团)有限责任公司 Stepping uniform electric heating cigarette
CN104397876A (en) * 2014-10-24 2015-03-11 深圳市劲嘉科技有限公司 Dual-function low-temperature non-burning smoking set
CN104886779A (en) * 2015-04-30 2015-09-09 上海烟草集团有限责任公司 Novel cigarette replacement core and smoking set
CN104983073A (en) * 2015-07-07 2015-10-21 深圳市赛尔美电子科技有限公司 Cigarette distilling device
CN207023242U (en) * 2017-06-16 2018-02-23 中国烟草总公司郑州烟草研究院 A kind of non-burning cigarette of electrical heating distillation type

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107455801B (en) * 2017-09-22 2023-04-25 中国烟草总公司郑州烟草研究院 Electric heating type non-combustion cigarette device
CN107455801A (en) * 2017-09-22 2017-12-12 中国烟草总公司郑州烟草研究院 A kind of non-burning portable rolling apparatus for cigarette of electric heating type
US11700885B2 (en) 2017-10-30 2023-07-18 Kt&G Corporation Aerosol generation device including mainstream smoke passage and pressure detection passage
US11974611B2 (en) 2017-10-30 2024-05-07 Kt&G Corporation Method for controlling temperature of heater included in aerosol generation device according to type of cigarette, and aerosol generation device for controlling temperature of heater according to type of cigarette
US11528936B2 (en) 2017-10-30 2022-12-20 Kt&G Corporation Aerosol generating device
US11700886B2 (en) 2017-10-30 2023-07-18 Kt&G Corporation Aerosol generating device and heater assembly for aerosol generating device
US11622580B2 (en) 2017-10-30 2023-04-11 Kt&G Corporation Aerosol generation device and generation method
CN110944532A (en) * 2017-10-30 2020-03-31 韩国烟草人参公社 Aerosol generating device
CN110944532B (en) * 2017-10-30 2023-10-24 韩国烟草人参公社 Aerosol generating device
US11622579B2 (en) 2017-10-30 2023-04-11 Kt&G Corporation Aerosol generating device having heater
US11744287B2 (en) 2017-10-30 2023-09-05 Kt&G Corporation Aerosol generating device and method for controlling same
US11478015B2 (en) 2017-10-30 2022-10-25 Kt&G Corporation Vaporizer of an aerosol generating device having a leakage-preventing structure
US11696600B2 (en) 2017-10-30 2023-07-11 Kt&G Corporation Aerosol generating device having heater
US11700884B2 (en) 2017-10-30 2023-07-18 Kt&G Corporation Aerosol generation device and heater for aerosol generation device
CN108095203A (en) * 2018-02-09 2018-06-01 昆明纳太科技有限公司 A kind of electrical heating is not burnt cigarette radiant type heating unit
CN108552597A (en) * 2018-03-09 2018-09-21 达文金属制品有限公司 A kind of heat generating device and electronic cigarette
CN112055546A (en) * 2018-05-01 2020-12-08 日本烟草产业株式会社 Roll paper for non-combustion heating type smoking article, non-combustion heating type smoking article and electric heating type smoking system
CN112055546B (en) * 2018-05-01 2024-04-02 日本烟草产业株式会社 Roll paper for non-combustion heating type smoking article, and electric heating type smoking system
CN108669663B (en) * 2018-05-31 2024-03-29 乐美星辰(深圳)生物科技有限公司 Heating non-burning cigarette
CN108669663A (en) * 2018-05-31 2018-10-19 赵雪 It is a kind of to heat the cigarette that do not burn
CN108567176A (en) * 2018-07-04 2018-09-25 云南中烟工业有限责任公司 A kind of aerosol generating device and its application method
CN109222250A (en) * 2018-10-26 2019-01-18 深圳伊卡普科技有限公司 Built-in pipe tobacco heating core
CN110173885B (en) * 2019-04-18 2023-10-27 深圳市天士力神通本草技术开发有限公司 Atomizer and heating structure of atomizer
CN110173885A (en) * 2019-04-18 2019-08-27 深圳市博迪科技开发有限公司 A kind of heating structure of atomizer and atomizer
CN112074342A (en) * 2020-03-05 2020-12-11 徐毅 Aerosol-generating core rod, aerosol-generating base material, and aerosol-generating device
CN111480893A (en) * 2020-03-25 2020-08-04 内蒙古昆明卷烟有限责任公司 Application of biological enzyme in preparing novel tobacco product capable of producing fragrance without heating

Also Published As

Publication number Publication date
CN107173850B (en) 2020-11-10

Similar Documents

Publication Publication Date Title
CN107173850A (en) A kind of electrical heating distillation type non-burning cigarette
CN207023242U (en) A kind of non-burning cigarette of electrical heating distillation type
CN107173851A (en) It is a kind of that there is the heating non-burning cigarette for distilling function
JP7477514B2 (en) Wicking element for an aerosol delivery device - Patent application
CN103859605A (en) Stepping uniform electric heating cigarette
JP7036499B2 (en) How to control the electric power of the heater of the aerosol generator and its aerosol generator
CN110403235A (en) A kind of dual-purpose type smoking product
CN105768209A (en) Novel cigarette capable of lowering smoke temperature and improving smoking quality
AU2014359184A1 (en) Aerosol-generating article with low resistance air flow path
KR20160098212A (en) Aerosol-generating system for generating and controlling the quantity of nicotine salt particles
CN203801735U (en) Stepping type uniformly electric heating cigarette
CN108618199B (en) Cigarette with heating and non-combustion functions for annular heating and non-combustion device
CN110150736A (en) A kind of rodlike cigarette and preparation method thereof
US20220192253A1 (en) Aerosol-generating article having a recessed supporting component
JP2021503880A (en) Aerosol formation
WO2018019051A1 (en) Electronic cigarette atomizer
CN207040862U (en) With the low temperature cigarette for reducing flue-gas temperature and preventing mouth rod heat from collapsing
JP2021514673A (en) A cigarette for the aerosol generator and an aerosol generator using the cigarette
EP4193851A1 (en) Aerosol-generating article with ventilated hollow segment
WO2021203839A1 (en) Electronic atomizer having v-shaped ceramic atomization core
CN106307622A (en) Hot air heating non-burning smoking set
WO2020011114A1 (en) Integrated horizontally-disposed atomizing core and electronic cigarette thereof
CN111511428A (en) Permeable element based vaporization method and apparatus
CN106723382A (en) A kind of mixed type low-temperature heat tobacco product
CN207023243U (en) A kind of non-burning cigarette of heating with distillation function

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant