CN214759148U - Electronic cigarette lighter - Google Patents
Electronic cigarette lighter Download PDFInfo
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- CN214759148U CN214759148U CN202120798755.6U CN202120798755U CN214759148U CN 214759148 U CN214759148 U CN 214759148U CN 202120798755 U CN202120798755 U CN 202120798755U CN 214759148 U CN214759148 U CN 214759148U
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Abstract
The utility model provides an electron cigarette lighter, include: a base; an insulating inner core partially disposed within the base; the high-temperature resistant film layer is wrapped on the surface of the insulating inner core; the infrared radiation coating is arranged on the surface of the high-temperature-resistant film layer; the positive electrode and the negative electrode are arranged on the infrared radiation coating and are connected to the wiring terminals on the base through wires; wherein, when the positive electrode and the negative electrode are electrified, the infrared radiation coating radiates infrared rays which cause the temperature of external substances to rise. Compared with the prior art, the utility model discloses an adopt the infrared radiation coating as the heating source, after positive electrode and negative electrode circular telegram, the infrared radiation coating radiates out the infrared ray that arouses the foreign matter temperature rise to have two kinds of some cigarette modes of infrared radiation and heat-conduction, some cigarette is fast. The former can burn tobacco shreds or atomize tobacco tar in air without contacting tobacco or nicotine solution or adopting heat transfer medium.
Description
Technical Field
The utility model belongs to the technical field of the electron cigarette, especially, relate to an electron cigarette lighter.
Background
The electronic cigarette is also called an electronic atomizer and a virtual cigarette, is an electronic product simulating a cigarette, has certain similar appearance, taste, smog and feeling with a common cigarette, and mainly comprises a smoke tube containing a nicotine solution, an evaporation device and a battery. When the cigarette is used, the battery drives the evaporation device to heat the nicotine solution in the cigarette tube, so that the nicotine is changed into steam for people to suck.
For the process of heating the nicotine solution in the smoke tube, a metal or ceramic resistance material electrifying heating mode is mostly adopted in the market at present, and the method belongs to a contact type heat conduction cigarette lighting mode.
The applicant of the present invention finds out in implementing the above technical solution that the above technical solution has at least the following drawbacks:
during heating, the cigarette can be ignited only by means of contact heat conduction, namely, a metal or ceramic resistance material is required to be in contact with tobacco or nicotine solution, or a heat transfer medium must be present, so that the cigarette ignition speed is slow.
SUMMERY OF THE UTILITY MODEL
An object of the embodiment of the utility model is to provide an electron cigarette lighter aims at solving in the heating process, can only come the point cigarette through contact heat-conduction's mode, needs metal or ceramic resistance material and tobacco or nicotine solution to contact promptly, perhaps must have heat transfer medium, the slow problem of point cigarette speed.
The embodiment of the utility model provides a realize like this, an electron cigarette lighter, include:
a base;
an insulating inner core partially disposed within the base;
the high-temperature resistant film layer is wrapped on the surface of the insulating inner core;
the infrared radiation coating is arranged on the surface of the high-temperature-resistant film layer;
the positive electrode and the negative electrode are arranged on the infrared radiation coating and are connected to the wiring terminals on the base through wires;
wherein, when the positive electrode and the negative electrode are electrified, the infrared radiation coating radiates infrared rays which cause the temperature of external substances to rise.
Preferably, the insulating inner core is made of ceramic or quartz.
Preferably, the high-temperature resistant film layer is made of a flexible polyimide film.
Preferably, the thickness of the flexible polyimide film is 0.01-0.1 mm.
Preferably, the infrared radiation coating is a graphene coating.
Preferably, the thickness of the graphene coating is 0.01-0.1 mm.
Preferably, the infrared radiation coating is arranged on the surface of the high-temperature resistant film layer in a printing or rolling coating mode.
Preferably, the electronic cigarette lighter further comprises a temperature detector for detecting the temperature generated by the infrared radiation coating.
Preferably, the temperature detecting piece is a thermocouple temperature detecting piece, a thermal resistor temperature detecting piece, a non-contact semiconductor infrared temperature sensor or a contact semiconductor infrared temperature sensor.
Preferably, the surface of the electronic cigarette lighter is coated with a high-temperature-resistant infrared-transmitting protective layer; the high temperature is not lower than 180 ℃.
Preferably, the positive and negative electrodes are disposed adjacent to each other or at opposing positions on the circumference of the insulating core.
Another object of the embodiments of the present invention is to provide a method for manufacturing an electronic cigarette lighter, comprising the following steps:
printing a positive electrode and a negative electrode on the high-temperature-resistant thin film layer according to a preset position, and drying and solidifying;
printing or roll-coating an infrared radiation coating on the high-temperature resistant film layer, and drying;
cutting according to a preset rule to obtain a monomer;
and adhering the monomer on the insulating inner core, and installing the cured part in the base to obtain the electronic cigarette lighter.
Preferably, the high-temperature resistant film layer is made of a flexible polyimide film, and the thickness of the high-temperature resistant film layer is 0.01-0.1 mm; the infrared radiation coating is a graphene coating, and the thickness of the graphene coating is 0.01-0.1 mm.
Preferably, between the steps of printing the positive electrode and the negative electrode on the high temperature resistant thin film layer according to the predetermined position, and drying and curing, the method further comprises the following steps:
and a thermocouple temperature detecting piece or a thermal resistance temperature detecting piece is bonded on the high-temperature resistant film layer.
Preferably, after the step of printing or rolling the infrared radiation coating on the high temperature resistant film layer and drying, the method further comprises the following steps:
coating a high-temperature-resistant infrared-transmitting protective layer on the surface of the infrared radiation coating, and drying; the high temperature is not lower than 180 ℃.
The embodiment of the utility model provides a pair of electron cigarette lighter, include: a base; an insulating inner core partially disposed within the base; the high-temperature resistant film layer is wrapped on the surface of the insulating inner core; the infrared radiation coating is arranged on the surface of the high-temperature-resistant film layer; the positive electrode and the negative electrode are arranged on the infrared radiation coating and are connected to the wiring terminals on the base through wires; wherein, when the positive electrode and the negative electrode are electrified, the infrared radiation coating radiates infrared rays which cause the temperature of external substances to rise.
Compared with the prior art, the utility model discloses an adopt the infrared radiation coating as the heating source, after positive electrode and negative electrode circular telegram, the infrared radiation coating radiates out the infrared ray that arouses the foreign matter temperature rise to have two kinds of some cigarette modes of infrared radiation and heat-conduction, some cigarette is fast. The former can burn tobacco shreds or atomize tobacco tar in air without contacting tobacco or nicotine solution or adopting heat transfer medium.
Drawings
Fig. 1 is an exploded schematic view of an electronic cigarette lighter according to an embodiment of the present invention;
fig. 2 is a schematic structural view of an electronic cigarette lighter according to an embodiment of the present invention;
fig. 3 is an axial view of an electronic cigarette lighter according to an embodiment of the present invention;
fig. 4 is an exploded schematic view of an electronic cigarette lighter according to an embodiment of the present invention;
fig. 5 is a schematic structural view of an electronic cigarette lighter according to an embodiment of the present invention;
fig. 6 is an axial view of an electronic cigarette lighter according to an embodiment of the present invention;
fig. 7 is a flowchart of a method for manufacturing an electronic cigarette lighter according to an embodiment of the present invention;
fig. 8 is a flowchart of a method for manufacturing an electronic cigarette lighter according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of a single body according to an embodiment of the present invention.
In the drawings: 01. an insulating inner core; 02. a high temperature resistant film layer; 03. a positive electrode and a negative electrode; 031. a positive electrode; 032. a negative electrode; 04. a temperature detecting member; 05. an infrared radiation coating; 06. a protective layer; 07. a wiring terminal; 08. a base.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The following detailed description is provided for the specific embodiments of the present invention.
The following detailed description is provided for the specific embodiments of the present invention.
Example 1
In an embodiment of the present invention, there is provided an electronic cigarette lighter, including:
a base 08;
an insulating inner core 01 partially arranged in the base 08;
the high-temperature resistant film layer 02 wraps the surface of the insulating inner core 01;
the infrared radiation coating 05 is coated on the surface of the high-temperature-resistant film layer;
positive and negative electrodes 03 disposed on the ir coating 05 and connected to terminals 07 on a base 08 by wires;
wherein, when the positive and negative electrodes 03 are energized, the infrared radiation coating 05 radiates infrared rays causing a temperature rise of the external substance.
The electronic cigarette lighter comprises two conditions, wherein the first condition is shown in figures 1-3, a positive electrode 03 and a negative electrode 03 are arranged between a high-temperature-resistant film layer 02 and an infrared radiation coating 05, and the second condition is shown in figures 4-6, and the positive electrode 03 and the negative electrode 03 are arranged on the outer surface of the infrared radiation coating 05 and are far away from the high-temperature-resistant film layer 02. The working principles of the two situations are consistent, and the two situations are as follows:
when the terminal 07 on the base 08 is connected to a power supply, the positive electrode 03 and the negative electrode 03 are energized, and current flows from the positive electrode to the infrared radiation coating 05 and then flows from the infrared radiation coating 05 to the negative electrode. Because the infrared radiation coating 05 has a resistor, the resistance of the resistor is related to the material composition, thickness and the like of the infrared radiation coating 05, the infrared radiation coating 05 generates heat, and the generated temperature meets the temperature condition required by the combustion of tobacco shreds or the atomization of tobacco tar. Meanwhile, the infrared radiation coating 05 at the temperature can generate infrared rays with a certain wavelength, and organic matters and water in the tobacco/tobacco tar can absorb the infrared rays in the band strongly, so that the temperature is increased rapidly.
It should be explained that the high temperature of the high temperature resistant thin film layer 02 of the present embodiment has a definite grade definition, and is classified according to the grade of the thin film insulation material, and the high temperature resistant thin film is called as a high temperature resistant thin film with a long-term working temperature reaching H-grade 180 degrees centigrade or more.
Compared with the prior art, this embodiment is through adopting infrared radiation coating 05 as the heating source, and after positive electrode and negative electrode 03 circular telegram, infrared radiation coating 05 radiates the infrared ray that arouses the foreign matter temperature rise to have two kinds of some cigarette modes of infrared radiation and heat-conduction, some cigarette is fast. The former can burn tobacco shreds or atomize tobacco tar in air without contacting tobacco or nicotine solution or adopting heat transfer medium.
As a preferred embodiment of the present invention, the insulating inner core 01 is made of ceramic or quartz.
Specifically, the ceramic and the quartz have good insulating property and high temperature resistance, and are excellent high temperature resistant insulating materials.
As a preferred embodiment of the present invention, the material of the high temperature resistant thin film layer 02 is a flexible polyimide film.
Specifically, the polyimide film is a plastic film obtained by casting a polyamic acid solution into a film, stretching the film, and imidizing the film at a high temperature, and includes a pyromellitic polyimide film and a biphenyl polyimide film. The former is a product of DuPont, USA, with trade name of Kapton, made from pyromellitic anhydride and diaminodiphenyl ether, and the latter is made from Nippon, Japan, with trade name of Uplix, made from biphenyl tetracarboxylic dianhydride and diphenyl ether diamine (R type) or m-phenylenediamine (S type). The polyimide film has outstanding high temperature resistance, radiation resistance, chemical corrosion resistance and electrical insulation performance, is nontoxic and can be used in air at 250-280 ℃ for a long time.
In the embodiment, the flexible polyimide film is used as an intermediate carrier, and is combined with the infrared radiation coating 05 through the adhesive, so that the adhesive has good combination performance. And when the binder is a polyimide liquid, the degree of bonding is higher, especially with the graphene coating of the examples described below.
As a preferred embodiment of the present invention, the thickness of the flexible polyimide film is 0.01 to 0.1 mm.
As a preferred embodiment of the present invention, the infrared radiation coating 05 is a graphene coating.
Graphene (Graphene) is a new material with a single-layer two-dimensional cellular lattice structure formed by closely stacking sp hybridized and connected carbon atoms, and has excellent optical, electrical and mechanical properties. As far as the materials are found, graphene is the material with the highest infrared emissivity, approaching the ideal black body (emissivity of black body is 100%).
The graphite alkene is taken as infrared radiation coating 05 to this embodiment, and the circular telegram back can radiate out a large amount of infrared rays, is keeping away from the pipe tobacco of electron cigarette lighter, perhaps the tobacco tar produces very high infrared radiation heating effect. The effect of infrared radiation heating is related to the resistance of the graphene coating, and the resistance is determined by the formula, thickness and the like of the graphene coating. The graphene coating has the advantages of small heat capacity, high temperature rise speed, high infrared radiance and two heat exchange modes of heat conduction, and under the normal condition, the temperature of the graphene coating can reach 250-380 ℃, and the temperature meets the temperature condition required by tobacco shred combustion or tobacco tar atomization. Meanwhile, the graphene coating at the temperature can generate 4-6 um infrared rays, and organic matters and water in the tobacco/tobacco tar can absorb the infrared rays at the waveband strongly, so that the temperature is rapidly increased.
As an optimized embodiment of the utility model, the thickness of graphite alkene coating is 0.01~0.1 mm.
As a preferred embodiment of the present invention, the infrared radiation coating 05 is disposed on the surface of the high temperature resistant film layer 02 by printing or roll coating.
In actual production, the polyimide film as the high temperature resistant film layer 02 can prevent high temperature generated by the graphene coating from diffusing into the electronic cigarette lighter, and in addition, more importantly, due to the limitation of the manufacturing process, the graphene coating is very difficult to directly coat on the cylindrical insulating inner core, the thickness and uniformity of the graphene coating are difficult to control, the resistance is not uniform, and the graphene coating is easy to crack during use. Experimental research shows that the graphene coating is easy to print or roll-coat on the polyimide film, the combination degree is high, the thickness control is accurate, and the products with batch, low cost and high quality can be obtained by utilizing mature printing and cutting processes.
As a preferred embodiment of the present invention, the electronic cigarette lighter further comprises a temperature detecting member 04 for detecting the temperature generated by the infrared radiation coating 05.
Specifically, the temperature detecting element includes a thermocouple type or a thermal resistor type, and taking the temperature detecting element 04 in the form of a thermocouple as an example, as shown in fig. 1 to 3, the temperature detecting element 04 may be disposed between the high temperature resistant film layer 02 and the infrared radiation coating 05; alternatively, as shown in fig. 4 to 6, the heat-resistant film layer may be disposed below the high-temperature-resistant film layer 02. The working principle of the two setting modes is consistent, the temperature of the electronic cigarette lighter is detected through the temperature detecting piece 04, the temperature signal is transmitted to the temperature control system through the base, and the cigarette lighting program is set through adjusting the temperature rising curve, so that the electronic cigarette lighter is suitable for different electronic cigarette varieties.
In addition, the temperature detecting element 04 can also be a non-contact/contact universal semiconductor infrared temperature sensor, which is arranged on the insulating inner core 01 and detects the temperature generated by the infrared radiation coating 05.
As a preferred embodiment of the present invention, the surface of the electronic cigarette lighter is coated with a high temperature resistant infrared transparent protective layer 06; the high temperature is not lower than 180 ℃.
Specifically, the protective layer 06 is a clear coat layer that is applied for the purpose of preventing oxidative failure of the ir-radiation coating 05 over time. The protective layer 06 is a general-purpose coating and may be an inorganic coating or other high temperature resistant infrared transparent coating.
As a preferred embodiment of the present invention, the positive electrode 03 and the negative electrode 03 are disposed close to each other or at opposite positions on the circumference of the insulating core 01.
Specifically, the present embodiment provides two setting cases of the positive electrode and the negative electrode 03. In the first case, as shown in fig. 1 to 3, the positive electrode 03 and the negative electrode 03 are located at opposite positions on the circumference of the insulating core 01, spaced by 180 °, and after power is applied, current flows from both sides to the other electrode through a half-cycle. In the second case, as shown in fig. 4-6, the positive electrode 03 and the negative electrode 03 are arranged close to each other with a thin insulating gap in between, and after being electrified, the current flows from one electrode to the other electrode around the circumference.
Example 2
As shown in fig. 7 to 9, in an embodiment of the present invention, a method for manufacturing an electronic cigarette lighter is provided, which includes the following steps:
s101, printing a positive electrode 031 and a negative electrode 032 on the high-temperature-resistant thin film layer 02 according to a preset position;
s102, adhering a thermocouple temperature detecting piece 04 or a thermal resistor temperature detecting piece 04 on the high-temperature resistant film layer 02, and drying and curing;
s103, printing or roll-coating the infrared radiation coating 05 on the high-temperature-resistant film layer 02, and drying;
s104, coating a high-temperature-resistant infrared-transmitting protective layer 06 on the surface of the infrared radiation coating 05, and drying; the high temperature is not lower than 180 ℃;
s105, cutting according to a preset rule to obtain a monomer;
and S106, adhering the monomer on the insulating inner core 01, and mounting the cured part in the base 08 to obtain the electronic cigarette lighter.
Specifically, according to two arrangements of the positive electrode 031 and the negative electrode 032 in embodiment 1, there are also two cases where the positive electrode 031 and the negative electrode 032 are printed on the high-temperature resistant thin film layer 02. The first situation is as shown in fig. 7, after steps S101 to S104, a full-page membrane block is obtained, before cutting, the distance between the positive electrode 031 and the negative electrode 032 between the two monomers is the same as the distance between the positive electrode 032 and the negative electrode 032 in the single monomer, after the monomers are adhered to the insulating inner core 01 in step S106, the positive electrode 031 and the negative electrode 032 are located at opposite positions on the circumference of the insulating inner core 01, the interval is 180 °, and after power is turned on, current flows to the other electrode from two sides through a half-cycle. In the second case, as shown in fig. 8, after steps S101 to S104, a full-page membrane block is obtained, before cutting, a positive electrode 031 and a negative electrode 032 between two single bodies are close to each other, after the single bodies are adhered to an insulating inner core 01 in step S106, the positive electrode 031 and the negative electrode 032 are close to each other, a thin insulating gap exists in the middle, and after power is supplied, current flows from one electrode to the other electrode from one electrode around.
In either the method for manufacturing the electronic cigarette lighter shown in fig. 7 or the method for manufacturing the electronic cigarette lighter shown in fig. 8, the adopted high temperature resistant film layer 02 is preferably a flexible polyimide film with a thickness of 0.01-0.1 mm. The electrodes are made of conductive silver paste or other conductive paste and are arranged on the flexible polyimide film in a printing mode, and the width and the thickness of the electrodes are determined according to the design.
After the thermocouple temperature detector 04 or the thermal resistor temperature detector 04 is bonded to the high temperature resistant film layer 02, the film is dried in a hot air/infrared drying furnace and cured to perform the next step. The drying and curing temperature depends on the characteristics of the conductive paste, such as conductive silver paste at 100-200 ℃.
The infrared radiation coating 05 is preferably a graphene coating, is arranged on the high-temperature-resistant film layer 02 in an ink-jet printing or film blade coating mode, and the thickness of the infrared radiation coating 05 is determined according to the design and is generally controlled to be 0.01-0.1 mm.
Then, the infrared radiation coating layer 05 is dried by hot air or infrared drying to coat the protective layer 06. The protective layer 06 is wider than the ir coating 05 but does not completely cover the electrodes, leaving a portion of the electrodes for connection to the base 08. Subsequently, the printed/coated film was pre-dried in an oven to obtain a full-size block.
Then, the whole film block is cut into individual single bodies along the designed cutting line by a stamping die, and the structural schematic diagram of the single bodies is shown in the attached FIG. 9. Spraying liquid adhesive, such as high-viscosity polyimide liquid, on the surface of the insulating inner core 01 in the shape of a cylindrical cone, and then curling the monomer and adhering the monomer to the insulating inner core 01.
And (3) transferring the semi-finished product into an oven for curing at the curing temperature of 200-300 ℃, and mounting the semi-finished product into a base 08 after curing to obtain the electronic cigarette lighter. The resulting e-cigarette lighter needs to check for heating value and temperature control functions to remove off-spec product.
Compared with the prior art, this embodiment is through adopting infrared radiation coating 05 as the heating source, and after positive electrode and negative electrode 03 circular telegram, infrared radiation coating 05 radiates the infrared ray that arouses the foreign matter temperature rise to have two kinds of some cigarette modes of infrared radiation and heat-conduction, some cigarette is fast. The former can burn tobacco shreds or atomize tobacco tar in air without contacting tobacco or nicotine solution or adopting heat transfer medium.
Secondly, in the conventional process, the radiation coating is usually directly coated on the insulating material, which has many disadvantages, and for the insulating material with smaller volume, such as the insulating inner core 01 of the present invention, it is almost difficult to find a suitable coating process to coat on such a small cylindrical surface, and moreover, the general coating process such as spraying is also difficult to ensure uniform thickness and resistance uniformity in all directions, and meanwhile, the adhesion force of the coating is not necessarily high, and the uniformity of the product is poor.
The utility model discloses a mode of printing/roll scribbling, with infrared radiation coating 05 printing/roll scribble on big high temperature resistant thin layer 02, the thickness of coating can the accurate control, and the degree of consistency on whole area is good, has guaranteed the resistance homogeneity of product, has just also guaranteed the functional uniformity of product. In addition, as the functional coating material such as graphene slurry has very high bonding force with the polyimide film, the product has good adhesive force, the polyimide film is bonded on the insulating inner core 01 through polyimide liquid, and very high bonding fastness can be achieved through polymerization reaction.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (11)
1. An electronic cigarette lighter, comprising:
a base;
an insulating inner core partially disposed within the base;
the high-temperature resistant film layer is wrapped on the surface of the insulating inner core;
the infrared radiation coating is arranged on the surface of the high-temperature-resistant film layer;
the positive electrode and the negative electrode are arranged on the infrared radiation coating and are connected to the wiring terminals on the base through wires;
wherein, when the positive electrode and the negative electrode are electrified, the infrared radiation coating radiates infrared rays which cause the temperature of external substances to rise.
2. The e-cigarette lighter of claim 1, wherein the insulating inner core is made of ceramic or quartz.
3. The e-cigarette lighter of claim 1, wherein the high temperature resistant film layer is made of a flexible polyimide film.
4. The e-cigarette lighter of claim 3, wherein the flexible polyimide film has a thickness of 0.01 to 0.1 mm.
5. The e-vaping device of claim 1, wherein the infrared-radiation coating is a graphene coating.
6. The e-cig lighter as claimed in claim 5, wherein the graphene coating is 0.01 to 0.1mm thick.
7. The e-cig lighter as claimed in claim 1, wherein the ir coating is printed or roll coated on the surface of the high temperature resistant film layer.
8. The e-cig lighter as claimed in claim 1 further comprising a temperature sensing element for sensing the temperature generated by the ir coating.
9. The electronic cigarette lighter according to claim 8, wherein the temperature detector is a thermocouple temperature detector, a thermal resistor temperature detector, a non-contact semiconductor infrared temperature sensor or a contact semiconductor infrared temperature sensor.
10. The e-cigar lighter according to claim 1, wherein the surface of the e-cigar lighter is coated with a high temperature resistant infrared transparent protective layer; the high temperature is not lower than 180 ℃.
11. The e-vaping device of claim 1, wherein the positive and negative electrodes are disposed adjacent to one another or at opposing locations on the circumference of the insulating core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120798755.6U CN214759148U (en) | 2021-04-19 | 2021-04-19 | Electronic cigarette lighter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120798755.6U CN214759148U (en) | 2021-04-19 | 2021-04-19 | Electronic cigarette lighter |
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| CN214759148U true CN214759148U (en) | 2021-11-19 |
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| CN202120798755.6U Active CN214759148U (en) | 2021-04-19 | 2021-04-19 | Electronic cigarette lighter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023109532A1 (en) * | 2021-12-13 | 2023-06-22 | 深圳市合元科技有限公司 | Heater and cigarette utensil comprising same |
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2021
- 2021-04-19 CN CN202120798755.6U patent/CN214759148U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023109532A1 (en) * | 2021-12-13 | 2023-06-22 | 深圳市合元科技有限公司 | Heater and cigarette utensil comprising same |
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