CN203986080U - A kind of non-burning smoking apparatus based on graphite heating - Google Patents
A kind of non-burning smoking apparatus based on graphite heating Download PDFInfo
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- CN203986080U CN203986080U CN201320825494.8U CN201320825494U CN203986080U CN 203986080 U CN203986080 U CN 203986080U CN 201320825494 U CN201320825494 U CN 201320825494U CN 203986080 U CN203986080 U CN 203986080U
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- graphite heating
- smoking apparatus
- apparatus based
- graphite
- heating component
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Abstract
The utility model relates to a kind of non-burning smoking apparatus based on graphite heating, and this smoking apparatus comprises bringing-up section, control section and power supply; Bringing-up section comprises shell body, collet and heater, the front end of shell body is provided with the mouth that enters inserting for tobacco product, the rear end of shell body is connected with air admission hole, and described heater is arranged in shell body, and collet is arranged between heater and shell body; Described heater adopts graphite heating component, and the centre of graphite heating component is provided with the heating chamber of accommodating tobacco product, and the front end of heating chamber is connected with the described mouth that enters, and the rear end of heating chamber is connected with described air admission hole; Described control section is provided with inner chamber body, and inner chamber body is provided with controller, and controller is connected with power supply, and controller is connected with conducting channel and is connected to heater.The utlity model has thermal effect high, constant temp. warming, temperature-controlled precision is high, good stability, the feature of long service life.
Description
Technical field
The utility model relates to new cigarette technical field, is specifically related to a kind of non-burning smoking apparatus based on graphite heating.
Background technology
Traditional cigarette, as the main product form of tobacco consumption, has the history of more than 100 year.Along with the transformation of people life style and consumption idea, the continuous quickening of the quick progress of science and technology and commodity upgrading speed, tobacco consumption person's demand and focus constantly change, be subject to the impact of the factors such as tobacco control, public opinion simultaneously, the development of traditional cigarette is restricted, and the appearance of new cigarette has become inevitable.
It is huge that research shows that the cigarette smoke of cigarette burning generation endangers non-smokers, and the hard fire being caused by smoking is to stop.Nicotine and most tobacco aroma component just can be transferred in flue gas at 200-500 degree Celsius, conventional cigarette burning temperature is more than 800 degrees Celsius, if cigarette heating temperature is reduced to below 500 degrees Celsius, the multiple harmful components of flue gas can significantly reduce, and the impact that flavor component is subject to is simultaneously relatively little.Therefore, study a kind of non-burning cigarette of heating smoking apparatus of avoiding pipe tobacco burning to meet again consumer's craving for tobacco demand very meaningful.
At present, the low temperature cigarette that market occurs transmits nicotine and fragrance by the do not burn mode of tobacco of heating to human body, its filling be tobacco material.Low temperature cigarette product has changed traditional cigarette burning and has taked visible smog, adopts the mode of " heating is not burnt ".Correlative study shows, under the lower temperature below 500 ℃, only heats but the tobacco of not burning, and nicotine and Partial Tobacco flavor component just can change and transfer in flue gas.Compare with traditional cigarette, low temperature cigarette can whole significantly reduce the burst size of tar and harmful components.Meanwhile, substantially there is no side-stream smoke, very little to other people, the harm of environment.
At present, gone on the market in the world or the low temperature cigarette researched and developed mainly contains: electrical heating low temperature cigarette, fuel heating low temperature cigarette and chemical heat low temperature cigarette.Electrical heating low temperature cigarette, take electric power as thermal source, and heating tobacco material, produces nicotine smog.Fuel heating low temperature cigarette, take extra fuel piece as thermal source, and heating tobacco material produces nicotine smog.Chemical heat low temperature cigarette, utilizes chemical reactor to heat as thermal source.
Philip Mirris Products Inc has applied for a kind of smoking article (application number: 89104827.8 applyings date: 1989-07-21), the heat that one of them carbon heat source burning produces passes to spices section, and produce, add cigarette smoke, carbonaceous thermal source and spices section are contained in a cylinder type hollow porcelain bushing not firing.Smoking article does not produce excessive cigarette substantially.The heat that thermal source sends is by convection current and radiation delivery, and this patent adopts carbon rod as heating source, and this mode of heating is disposable, cannot reuse.
Philip Mirris Products Inc has also applied for a kind of for tobacco flavor being given to the cigarette (application number: 94102530.6 applyings date: 1994-02-25) described cigarette comprises: a carrying pipe of smoker's the cigarette smoking system at least with an electric heater in addition, described carrying pipe has longitudinal separated the first and second ends and has the first and second surfaces, first surface crosses a chamber between the first and second ends, and second surface has one to be used for abutting in a region on electric heater; And one deck cigarette Studies of The Aromatic Substances layer, described cigarette Studies of The Aromatic Substances layer is configured on carrying pipe first surface, when being subject to heating, in chamber, produce the tobacco flavor of giving smoker, wherein said carrying pipe and cigarette Studies of The Aromatic Substances layer allow in crossflow inflow chamber, this patent adopts electrically heated mode, for Electric heating
In addition, for above-mentioned low temperature cigarette, when aspirating, TPM is lower during initial suction, final but it is tending towards progressively improving, the sensation of bringing flue gas intensity to increase gradually to consumer; When heating chamber takes integral type mode of heating to aspirate conventional cigarette, flue gas initial extremely a little less than, then rise rapidly, then, along with the increase of puff number, exhaust gas volumn significantly reduces.This is mainly because it utilizes former mouthfuls of suctions to reach optimum temperature, make tobacco product produce high concentration aerosol, yet along with suction process, aerosol produces totally.Compare with conventional cigarette, smoke delivery is uncontrollable, and between different puff numbers, sense organ differs greatly, and sucks the later stage, and organoleptic attribute is tending towards weakening.In addition, heating too early cigarette does not heat position and can cause generating portion smog or this position of cigarette is caused owing to being heated thermic degraded changing self quality; Reheat the position being previously heated and can cause producing offending smell or harmful components.
Summary of the invention
In order to solve above-mentioned technical problem, the purpose of this utility model is to provide a kind of non-burning smoking apparatus based on graphite heating, this device adopts the mode of graphite heating, a kind of Fast Heating mode of new non-burning smoking apparatus is provided, there is thermal effect high, constant temp. warming, temperature-controlled precision is high, good stability, the feature of long service life.
In order to realize above-mentioned object, the utility model has adopted following technical scheme:
A non-burning smoking apparatus based on graphite heating, this smoking apparatus comprises bringing-up section, control section and power supply, bringing-up section and control section link into an integrated entity; Bringing-up section comprises shell body, collet and heater, the front end of shell body is provided with the mouth that enters inserting for tobacco product, the rear end of shell body is connected with air admission hole, and described heater is arranged in shell body, and collet is arranged between heater and shell body; Described heater adopts graphite heating component, and the centre of graphite heating component is provided with the heating chamber of accommodating tobacco product, and the front end of heating chamber is connected with the described mouth that enters, and the rear end of heating chamber is connected with described air admission hole; Described control section is provided with inner chamber body, and inner chamber body is provided with controller, and controller is connected with power supply, and controller is connected with conducting channel and is connected to heater.
As preferably, described graphite heating component axially arranges many rows, and each is arranged graphite heating component and is embedded in collet by circumference, and in the inner side of graphite heating component, heat conducting sleeve is set, the two ends of graphite heating component are respectively arranged with insulation heat insulating washer, and heat conducting sleeve hollow forms described heating chamber.As further improvement, described heater adopts segmentation structure, every row's graphite heating component is divided into multistage, described heat conducting sleeve is also correspondingly divided into multistage, multistage heat conducting sleeve is separately positioned on the inner side of multistage graphite heating component, between two sections of graphite heating components and heat conducting sleeve, is provided with insulation heat insulating washer.Above-mentioned structure provides segmented successively to heat cigarette, and between different puff numbers, exhaust gas volumn is basically identical, can effectively stop again heat to be delivered to the position of not heating position or previously having heated of cigarette simultaneously.
As preferably, described graphite heating component is hollow tube-shape, and described heating chamber is arranged on the axis of graphite heating component.As further improvement, heater adopts segmentation structure, and described graphite heating component is divided into multistage, is provided with insulation heat insulating washer between two sections of graphite heating components.Above-mentioned structure provides segmented successively to heat cigarette, and between different puff numbers, exhaust gas volumn is basically identical, can effectively stop again heat to be delivered to the position of not heating position or previously having heated of cigarette simultaneously.
As preferably, described graphite heating component is divided into 3 ~ 20 sections.As preferred again, described controller, control circuit is set and controls each section of graphite heating component according to axial order heating or 2 ~ 3 sections of graphite heating component heating of combination.
As further improvement, described each section graphite heating component is respectively arranged with temperature sensor, and temperature sensor is connected with controller by conducting channel is set.As preferably, temperature sensor adopts annular collar-type thermocouple.The utility model can feed back the real time temperature of each section of graphite heating component by set temperature sensor, and the real time temperature of controlling each section of graphite heating component for controller provides Data support.
As further improvement, described power supply is supplying cell, and supplying cell is connected with gauge tap, and gauge tap is for controlling the power supply of whole device, for user's opening device.Described supplying cell is arranged on the inner chamber body of control section, or the rear end of control section is also connected with power section, and described supplying cell is arranged on power section.
As further improvement, in described control section, be provided with gas channel, gas channel is connected with described air admission hole, and is provided with air-vent at the sidewall of control section, and gas channel is connected with air-vent.
As being provided with pneumatic sensor in preferred again, described gas channel, pneumatic sensor is connected with controller by conducting channel.In the process that pneumatic sensor aspirates by cigarette filter at human body, air-flow flows in heating chamber through gas channel, and air-flow sensing device senses the stream pressure that human body produces when cigarette filter aspirates, and by controller, starts heater.
As further improvement, the inner end of described shell body arranges connection end, the inner chamber of connection end closure body, and connection end axially middle part is provided with described air admission hole, is provided with described insulation heat insulating washer between described heater and connection end.The facility of connection end has guaranteed at the heater of bringing-up section on the one hand with extraneous heat insulation, in addition also for bringing-up section and being connected of control section provide help.As preferably, on described connection end, be provided with a plurality of jacks, control section is provided with a plurality of plugs, and jack and plug all adopt conductive material, and plug and controller are electrically connected, and jack is electrically connected with graphite heating component respectively.The best mode that adopts conductive material jack to provide bringing-up section to be electrically connected to control section with plug.
As further improvement, described collet adopts nanoporous aerogel heat insulation felt, and shell body adopts polyether-ether-ketone resin.Adopt nanoporous aerogel felt insulation, serviceability temperature-50～650 ℃, thermal conductivity factor corresponds to 0.021～0.035W/ (mK) from 200～500 ℃, has guaranteed effective insulation, prevents the heat loss of heater.And adopting polyether-ether-ketone resin shell, serviceability temperature is 260 ℃ continuously, has good heat-proof combustion-resistant performance.
As further improvement, the chamber wall of described heating chamber is provided with heat conduction separation layer, and preferred heat conduction separation layer is thermal conductive ceramic pipe, thermal conductive metal pipe or heat conduction plated film.Heat conduction separation layer is set and can isolates cigarette and contact with the direct of heater, prevent that cigarette from polluting heater in evaporation.
The utility model adopts the mode of graphite heating, and a kind of Fast Heating mode of new non-burning smoking apparatus is provided, and has thermal effect high, constant temp. warming, and temperature-controlled precision is high, good stability, the feature of long service life.The utility model is by the controller that inwall heat-conducting mechanism is set in smoking set housing and controls above-mentioned heat-conducting mechanism operating temperature and order of work, make the utility model to pass through graphite heating mode by the aroma component destructive distillation in cigarette out, but not the cigarette that directly burns, reduced the harm of cigarette to human body, guaranteed that consumer obtains the impression of tobacco feature.
Further, the utility model adopts segmented successively to heat cigarette, and between different puff numbers, exhaust gas volumn is basically identical, has the position of not heating position or previously having heated that can effectively stop heat to be delivered to cigarette simultaneously.The utility model can provide the suction number near with conventional cigarette, also allows smoker to suspend at any time and restart to use.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the A-A cutaway view of Fig. 1.
Fig. 3 is the structural representation of bringing-up section of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is made a detailed explanation.
A kind of non-burning smoking apparatus based on graphite heating as shown in Figure 1, this smoking apparatus consists of bringing-up section 1, control section 2 and power section 3, and bringing-up section 1, control section 2 and power section 3 are in turn connected into one.The front end of shell body 11 be provided with for tobacco product, insert enter mouth 20, the rear end of shell body is connected with air admission hole 19, in control section 2, be provided with gas channel 22, gas channel 22 is connected with described air admission hole 19, and being provided with air-vent 23 at the sidewall of control section 2, gas channel 22 is connected with air-vent 23.
As shown in Figure 2 and Figure 3, described bringing-up section 1 comprises shell body 11, collet 12 and heater 13, and heater 13 is arranged in shell body 11, and collet 12 is arranged between heater 13 and shell body 11; Described collet 12 adopts nanoporous aerogel heat insulation felts, serviceability temperature-50～650 ℃, and thermal conductivity factor corresponds to 0.021～0.035W/ (mK) from 200～500 ℃, has guaranteed effective insulation, prevents the heat loss of heater.Shell body 11 adopts polyether-ether-ketone resin, and serviceability temperature is 260 ℃ continuously, has good heat-proof combustion-resistant performance.Described heater 13 adopts graphite heating component 18, and operating temperature is 200-500 degree Celsius.Graphite heating component 18 axially arranges 4 rows, each is arranged graphite heating component 18 and is embedded in collet 12 by circumference, and in the inner side of graphite heating component 18, heat conducting sleeve 15 is set, every row's graphite heating component 18 is divided into 4 ~ 6 sections, described heat conducting sleeve 15 is also correspondingly divided into 4 ~ 6 sections, multistage heat conducting sleeve 15 is separately positioned on the inner side of multistage graphite heating component 18, is provided with insulation heat insulating washer 14 between two sections of graphite heating components 18 and heat conducting sleeve 15.Described heat conducting sleeve 15 hollows form the heating chamber 10 of accommodating tobacco product, and the chamber wall of heating chamber 10 is provided with heat conduction plated film.The front end of heating chamber 10 is connected with the described mouth 20 that enters, and the rear end of heating chamber 10 is connected with described air admission hole 19.Or graphite heating component 18 is hollow tube-shape, described heating chamber 10 is arranged on the axis of graphite heating component 18, and the chamber wall of heating chamber 10 is provided with thermal conductive metal pipe; The graphite heating component 18 of hollow tube-shape is divided into multistage, is provided with insulation heat insulating washer 14 between two sections of graphite heating components 18.
Described control section 2 is as shown in Figure 1 provided with inner chamber body, inner chamber body is provided with controller 21, controller 21 is provided with conducting channel and is connected to each section of graphite heating component 18, and controller 21 arranges logic control circuit and controls each section of graphite heating component 18 and heat according to axial order.On described connection end 4, be provided with a plurality of jacks, control section 2 is provided with a plurality of plugs 16, and jack and plug 16 all adopt conductive material, and plug 16 is electrically connected with controller 21, and jack is electrically connected with each section of graphite heating component 18 respectively.As shown in Figure 3, each section of graphite heating component 18 is respectively arranged with annular collar-type thermocouple 17, and the collar-type thermocouple 17 of annular is connected with controller 21 by conducting channel is set.And being provided with pneumatic sensor 7 in the gas channel 22 of control section 2, pneumatic sensor 7 is connected with controller 21 by conducting channel.
As shown in Figure 1, described power section 3 inner chambers are provided with supplying cell 5, and supplying cell 5 is detachable/Rechargeable battery, voltage 6-12 volt, and supplying cell 5 is connected with controller 21 by conducting channel.In addition, whole device is also provided with gauge tap 6, and gauge tap 6 is connected with controller 21 by conducting channel, and gauge tap 6 is for controlling the power supply of whole device, for user's opening device.
When the utility model is used, cigarette 8 pipe tobacco sections are inserted to chamber 10 to be heated, open gauge tap 6, in the process of aspirating by cigarette filter at human body, air-flow flows in heating chamber 10 through air admission hole 19, air-flow sensing device 7 senses the stream pressure that human body produces when cigarette filter aspirates, by controller 21, start heater 13, logic circuit adopts axially successively heating sequence, cigarette appointed part to be sucked is heated to 200-500 degree Celsius, under the effect of air-flow, distinctive aroma component in cigarette products, with airflow passes cigarette filter, enter oral cavity, thereby guarantee that consumer obtains the impression of tobacco feature.
Claims (17)
1. the non-burning smoking apparatus based on graphite heating, this smoking apparatus comprises bringing-up section (1), control section (2) and power supply, bringing-up section (1) and control section (2) link into an integrated entity; It is characterized in that: bringing-up section (1) comprises shell body (11), collet (12) and heater (13), the front end of shell body (11) be provided with for tobacco product, insert enter mouth (20), the rear end of shell body (11) is connected with air admission hole (19), air admission hole (19) is connected with the external world, described heater (13) is arranged in shell body (11), and collet (12) is arranged between heater (13) and shell body (11); Heater (13) adopts graphite heating component (18), and the centre of graphite heating component (18) is provided with the heating chamber (10) of accommodating tobacco product; The front end of heating chamber (10) is connected with the described mouth (20) that enters, and the rear end of heating chamber (10) is connected with described air admission hole (19); Described control section (2) is provided with inner chamber body, and inner chamber body is provided with controller (21), and controller (21) is connected with power supply, and controller (21) is connected with conducting channel and is connected to heater (13).
2. a kind of non-burning smoking apparatus based on graphite heating according to claim 1, it is characterized in that: graphite heating component (18) axially arranges many rows, each is arranged graphite heating component (18) and is embedded in collet (12) by circumference, and in the inner side of graphite heating component (18), heat conducting sleeve (15) is set, the two ends of graphite heating component (18) are respectively arranged with insulation heat insulating washer (14), and heat conducting sleeve (15) hollow forms described heating chamber (10).
3. a kind of non-burning smoking apparatus based on graphite heating according to claim 2, it is characterized in that: heater (13) adopts segmentation structure, every row's graphite heating component (18) is divided into multistage, described heat conducting sleeve (15) is also correspondingly divided into multistage, multistage heat conducting sleeve (15) is separately positioned on the inner side of multistage graphite heating component (18), between two sections of graphite heating components (18) and heat conducting sleeve (15), be provided with insulation heat insulating washer (14), described controller (21) arranges respectively conducting channel and is connected to each section of graphite heating component (18).
4. a kind of non-burning smoking apparatus based on graphite heating according to claim 1, is characterized in that: graphite heating component (18) is hollow tube-shape, and described heating chamber (10) is arranged on the axis of graphite heating component (18).
5. a kind of non-burning smoking apparatus based on graphite heating according to claim 4, it is characterized in that: heater (13) adopts segmentation structure, graphite heating component (18) is divided into multistage, between two sections of graphite heating components (18), be provided with insulation heat insulating washer (14), described controller (21) arranges respectively conducting channel and is connected to each section of graphite heating component (18).
6. according to a kind of non-burning smoking apparatus based on graphite heating described in claim 1 ~ 5 any one, it is characterized in that: it is 3 ~ 20 sections that graphite heating component (18) is divided into.
7. a kind of non-burning smoking apparatus based on graphite heating according to claim 6, is characterized in that: controller (21) arranges logic control circuit and controls each section of graphite heating component (18) according to axial order heating or 2 ~ 3 sections of graphite heating components of combination (18) heating.
8. according to a kind of non-burning smoking apparatus based on graphite heating described in claim 1 ~ 5 any one, it is characterized in that each section of graphite heating component (18) is respectively arranged with temperature sensor, temperature sensor is connected with controller (21) by conducting channel is set.
9. a kind of non-burning smoking apparatus based on graphite heating according to claim 8, is characterized in that: temperature sensor adopts annular collar-type thermocouple (17).
10. according to a kind of non-burning smoking apparatus based on graphite heating described in claim 1 ~ 5 any one, it is characterized in that: described power supply is supplying cell (5), supplying cell (5) is connected with gauge tap (6), described supplying cell (5) is arranged on the inner chamber body of control section (2), or the rear end of control section (2) is also connected with power section (3), described supplying cell (5) is arranged on power section (3).
11. according to a kind of non-burning smoking apparatus based on graphite heating described in claim 1 ~ 5 any one, it is characterized in that: in control section (2), be provided with gas channel (22), gas channel (22) is connected with described air admission hole (19), and being provided with air-vent (23) at the sidewall of control section (2), gas channel (22) is connected with air-vent (23).
12. a kind of non-burning smoking apparatus based on graphite heating according to claim 11, is characterized in that: in gas channel (22), be provided with pneumatic sensor (7), pneumatic sensor (7) is connected with controller (21) by conducting channel.
13. according to a kind of non-burning smoking apparatus based on graphite heating described in claim 2 or 3 or 5, it is characterized in that: the inner end of shell body (11) arranges connection end (4), the inner chamber of connection end (4) closure body (11), connection end (4) axially middle part is provided with described air admission hole (19), is provided with described insulation heat insulating washer (14) between described heater (13) and connection end (4).
14. a kind of non-burning smoking apparatus based on graphite heating according to claim 13, it is characterized in that: connection end is provided with a plurality of jacks on (4), control section (2) is provided with a plurality of plugs, jack and plug all adopt conductive material, plug and controller (21) are electrically connected, and jack is electrically connected with graphite heating component (18) respectively.
15. according to a kind of non-burning smoking apparatus based on graphite heating described in claim 1 ~ 5 any one, it is characterized in that: collet (12) adopts nanoporous aerogel heat insulation felt, and shell body (11) adopts polyether-ether-ketone resin.
16. according to a kind of non-burning smoking apparatus based on graphite heating described in claim 1 ~ 5 any one, it is characterized in that: the chamber wall of heating chamber (10) is provided with heat conduction separation layer.
17. a kind of non-burning smoking apparatus based on graphite heating according to claim 16, is characterized in that: heat conduction separation layer is thermal conductive ceramic pipe, thermal conductive metal pipe or heat conduction plated film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320825494.8U CN203986080U (en) | 2013-12-13 | 2013-12-13 | A kind of non-burning smoking apparatus based on graphite heating |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320825494.8U CN203986080U (en) | 2013-12-13 | 2013-12-13 | A kind of non-burning smoking apparatus based on graphite heating |
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| CN203986080U true CN203986080U (en) | 2014-12-10 |
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| CN201320825494.8U Withdrawn - After Issue CN203986080U (en) | 2013-12-13 | 2013-12-13 | A kind of non-burning smoking apparatus based on graphite heating |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103720047A (en) * | 2013-12-13 | 2014-04-16 | 浙江中烟工业有限责任公司 | Non-combustion smoking device on basis of graphite heating |
| CN105696108A (en) * | 2016-01-29 | 2016-06-22 | 广西中烟工业有限责任公司 | Preparation method of graphite toughened wear-resisting electronic cigarette oil-conducting rope |
| CN110495642A (en) * | 2019-09-11 | 2019-11-26 | 深圳市你我网络科技有限公司 | Heat not burner and its heating component |
-
2013
- 2013-12-13 CN CN201320825494.8U patent/CN203986080U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103720047A (en) * | 2013-12-13 | 2014-04-16 | 浙江中烟工业有限责任公司 | Non-combustion smoking device on basis of graphite heating |
| CN103720047B (en) * | 2013-12-13 | 2017-04-05 | 浙江中烟工业有限责任公司 | A kind of non-burning smoking apparatus based on graphite heating |
| CN105696108A (en) * | 2016-01-29 | 2016-06-22 | 广西中烟工业有限责任公司 | Preparation method of graphite toughened wear-resisting electronic cigarette oil-conducting rope |
| CN105696108B (en) * | 2016-01-29 | 2018-03-20 | 广西中烟工业有限责任公司 | A kind of preparation method of the wear-resisting electronic cigarette Oil Guide rope of graphite toughness reinforcing |
| CN110495642A (en) * | 2019-09-11 | 2019-11-26 | 深圳市你我网络科技有限公司 | Heat not burner and its heating component |
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Legal Events
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141210 Effective date of abandoning: 20170405 |