CN207912055U - One grows tobacco electric heater unit - Google Patents
One grows tobacco electric heater unit Download PDFInfo
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- CN207912055U CN207912055U CN201820045314.7U CN201820045314U CN207912055U CN 207912055 U CN207912055 U CN 207912055U CN 201820045314 U CN201820045314 U CN 201820045314U CN 207912055 U CN207912055 U CN 207912055U
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Abstract
The utility model is related to tobacco heating art, provides one and grow tobacco electric heater unit.The tobacco electric heater unit, including shell, the pedestal being set in the shell, the heating element for the hollow cylindrical being set on the base, power supply, the control element being connect respectively with heating element and power supply, the heating element is rolled to form and formed after hollow heating cavity is inserted into for tobacco by carbon material heating film and be heated.For tobacco electric heater unit described in the utility model using carbon material heating film as heater element, conversion efficiency of thermoelectric is high, and heating rate is fast, uniformity of temperature profile, and frivolous flexibility, the problem of being bonded with the substance to be heated of surface irregularity, not will produce hot-spot.
Description
Technical field
The utility model is related to tobacco heating art, grow tobacco electric heater unit more particularly, to one.
Background technology
Electric heater unit requirement heater temperature-controllable, the uniform distribution of temperature field for heating the tobacco product that do not burn, with
Just ensure device and personal safety, promote user experience.It is existing heating do not burn cigarette electric heater generally use metal or
Ceramic heating element using periphery or center fever, that there are conversion efficiency of thermoelectric is low, wire is oxidizable as heater for heating wire,
The problem of temperature control difficulty is big, hot-spot, ceramic heating element is insufficient using center sheet adstante febre mechanical strength, is easy disconnected
It splits.The problem of most critical is temperature distributing disproportionation when above two heater heats, although the Temperature Distribution of ceramic heating element is equal
Even property has been much better than metal heating wire, but the regional temperature for being proximate to line with heating function road is high, the regional temperature far from fever circuit
Low, the tens of degree of the two difference are even higher.Temperature distributing disproportionation is easy to cause pipe tobacco and heats insufficient or pipe tobacco excessive heat, this
Sample can influence user experience.
Utility model content
The tobacco electrical heating dress that the purpose of this utility model is to provide a kind of heating temperatures to be evenly distributed, heating rate is fast
It sets.
In order to solve the above technical problems, the technical solution adopted in the utility model is：
One grows tobacco electric heater unit, including shell, be set in the shell pedestal, be set on the base it is hollow
Columned heating element, power supply, the control element being connect respectively with heating element and power supply, the heating element is by carbon material
Heating film is rolled to form and formed after hollow heating cavity is inserted into for tobacco and be heated.
For the tobacco electric heater unit using carbon material heating film as heater element, conversion efficiency of thermoelectric is high, heating
Speed is fast, uniformity of temperature profile, and frivolous flexibility, can be bonded with the substance to be heated of surface irregularity, not will produce local mistake
The problem of heat.
Itself for carbon material, the surface resistance of carbon material and heating area influence temperature rise effect, therefore, be according to setting
Meter demand selects suitable heating area knead dough resistance sizes and suitable operating temperature.Preferably, the carbon material heating
The surface resistance of film monomer is between 530~12000 Ω/m2Between, more preferably 850~6000 Ω/m2And it can adjust as needed.
The tobacco form of the tobacco electric heater unit heating includes columned cigarette, scattered pipe tobacco, thin slice etc..
The size of the hollow heating cavity is adjustable, if the substance heated is columned cigarette, in
The internal diameter of cavity body is suitable with the diameter of cigarette, ensure cigarette can consolidate but also with heating surface is good contacts, hollow cavity
Height will be generally above the tobacco section height of the cigarette.If heated substance is tobacco in bulk and derived from tobacco
Substance then determines that the size of cavity or even the bottom of heating cavity are also according to charging is how many with the heating effect to be reached
It is hermetically sealed or semitight.It is general to require internal diameter for 5 ~ 9mm, it is highly 10 ~ 30 mm.
Further, the carbon material heating film includes that carbon material heating layer, the heat conduction being connect with carbon material heating layer are exhausted
Edge layer；Sequentially connected first thermally conductive insulating layer, carbon material heating layer, the second thermally conductive insulating layer；The carbon material heating layer by
At least one carbon material fever monomer is constituted；Carbon material fever monomer includes carbon material layer, electrode, leading of being connect with electrode
Line, the conducting wire are connect with the control element.Further, the thermally conductive insulating layer includes the first thermally conductive insulating layer and the
Two thermally conductive insulating layer, two faces of the carbon material heating layer respectively with first thermally conductive insulating layer and the second thermally conductive insulating layer
Connection.
When the carbon material layer is connect with electrode or conducting wire connects, need to consider that high temperature is to the above-mentioned contact that is electrically connected when work
Fastness influence, including but not limited to use the resistance to height of metal materials or part such as dystectic metal such as manganese, copper, tungsten, gold, silver
The conducting polymer composite of temperature is as electrode or conducting wire.High-temperature-resistant flexible circuit can also be used.Further, it can also examine
Physical connection mode is considered, by conducting wire or electrode with carbon material heating layer by the way that the reliability for ensureing to be electrically connected is physically contacted.
Specifically, the electrode is located at the both ends of carbon material layer, to constitute a rectangular area, that is, constitutes a carbon
Material fever monomer.Carbon material includes any one of carbon nanotube, graphite, graphene and carbon fiber and a variety of combinations.It is excellent
Selection of land, the carbon material layer are carbon nanotube layer.
First thermally conductive insulating layer and the second thermally conductive insulating layer generally using can the insulating materials of heat conduction be made, such as polyamides
Imines film etc..
In order to further increase the toughness of carbon material heating film, the carbon material heating film further includes supporting layer, the branch
Support layer is located at the side of first insulating layer or second insulating layer far from carbon material heating layer.The supporting layer can be gold
Category, alloy, high molecular material, inorganic material can also be flexible material.Under the conditions of certain special process, if carbon material
Can by the physics such as spraying or brushing, chemical mode prepare in the support layer surface, then the carbon material heating film can be with
Without one kind in the first insulating layer and second insulating layer.
The carbon material heating layer can be made of one or more carbon materials fever monomer.Further, the carbon material hair
Thermosphere is formed in parallel by multiple carbon material fever monomers, by the control of the control element, the multiple carbon materials
Material fever monomer can individually generate heat.In addition, not exclusively, multiple carbon material fever monomers, which can also connect, to be added
Heat.
The fever monomer resistance is identical or different, the fever monomers of the difference resistance values according to certain regularly arranged,
Realize different temperatures heating effect.Preferably, the resistance value of the fever monomer along the radial direction from inside to outside of heating cavity by
It is cumulative big.The heating temperature for both having reached cigarette in this way, by being avoided that outside wall temperature is excessively high and influences user security and promotion user
Experience.
The length of the carbon material fever monomer is 3 ~ 40mm, and width is 3 ~ 30mm and can surface resistance and size as needed
The resistance value of carbon fever monomer is adjusted, the resistance value for the monomer that generates heat is 0.5~3.5 ohm, preferably 0.5~1.5 Europe
Nurse.
Whether the control element can monitor each carbon material fever monomer in real time under open state can be just
Often work, prompts the fever monomer of failure.Preferably, the tobacco electric heater unit further include display screen or by
Key, the display screen and button are connect with the control element respectively.The setting of display screen and button convenient for users to operate with
The number or heating region for determining the carbon material for needing to heat fever monomer adjust the heating effect of carbon material fever monomer,
Including heating region, heating rate, heating temperature etc., meet a variety of user experiences.Even if a monomer breaks down simultaneously, then
Other fever monomer normal works are not influenced, improve the stability of heat generating device.
Further, the hollow circuit cylinder that the heating element is at least 1 layer made of being rolled by the carbon material heating film
Shape structure.The heating element of the hollow cylindrical can be single layer heating, can also be Multi-layer warming.Preferably, described to add
The hollow columnar structures that thermal element is 1 ~ 3 layer.The heating cavity internal temperature when being aspirated using the tobacco electric heater unit
It reduces, the heating structure of multilayer can avoid temperature from obviously fluctuating in time by temperature-compensating, ensure that the temperature of device is stablized, use
It experiences at family.
The hollow columnar structures of multilayer carbon material heating film are prevented further to improve the distributing homogeneity of heat
Only hot-spot damages carbon material, and further, the heating element is equipped with heat-conducting layer, and the heat-conducting layer is set to each layer carbon materials
Between material heating film.
The material of the heat-conducting layer is copper foil or aluminium foil etc..The heat-conducting layer can be reticular structure.
The heat-conducting layer is completely or partially contacted with the carbon material heating film.Preferably, the heat-conducting layer is directly arranged
In the carbon material heating film.
Further, the surface that the heating element is contacted with tobacco material is equipped with wearing layer, to carry high-carbon heating monomer
Wear-resisting property, and be not significantly affected by heat transfer.Preferably, the wearing layer is set up directly on the carbon material heating film
On part corresponding with heating cavity.
Further, heating element carbon material heating membrane part corresponding with the shell is equipped with thermal insulation layer.Institute
The heat-insulating problem of heating element periphery can be solved by stating the setting of thermal insulation layer, and the thermal insulation layer can be by materials systems such as asbestos
At.The thermal insulation layer is arranged at first insulating layer or second insulating layer, when the thermal insulation layer and the carbon material heat
When film is made into integration, then the carbon material heating film can be without one kind in the first insulating layer and second insulating layer.Further
Ground, certain material properties and/or structure, and/or manufacture craft can be achieved at the same time support and heat-insulated effect, the then support
Layer can be combined into one with the thermal insulation layer or alternative, first insulating layer and two insulating layers can have, can also only have
One of them.
Further, the carbon material heating film is equipped with the temperature control element that at least one is used to detect and control temperature, described
Temperature control element is connected with the control element.The temperature control element can detect the change of the temperature in the carbon material heating film in real time
Change, and heating temperature can be adjusted according to actual conditions.
Preferably, the quantity of temperature control element is multiple.Particularly, for the carbon material for the monomer that generates heat containing multiple carbon materials
Heating film, each carbon material fever monomer are equipped with temperature control element described at least one.Further, the temperature control element according to
Certain principle Heterogeneous Permutation guarantees to monitor different zones, the temperature of different parts, ensures that heating temperature is evenly distributed.
The tolerable temperature of the carbon nanotube is restricted, tolerable most generally, for the carbon material heating film
High-temperature is limited by carbon material itself, if temperature is excessively high or out of control, easily leads to carbon nanotube fever membrane damage, preferably described to add
The temperature range that works long hours of thermal element is between 150~260 DEG C.In this regard, further, the tobacco electric heater unit also wraps
Overheating protection unit is included, the overheating protection unit is connect with control element.
Further, the heating element is detachably connected with the pedestal.Pass through above-mentioned setting so that the heating unit
Part is replaceable, to improve the utilization rate of whole device, extends the service life of whole device.
The power supply includes but not limited to chargeable lithium ion battery, and further, polylith lithium ion battery is made
Battery pack, to increase cell voltage or cruising ability.Further, the power supply can be by electric wire or Radio Transmission Technology
It is electrically connected with household, meets continuous heating or emergent heating needs.For chargeable or connect the device of dispatch from foreign news agency, the shell and right
Charging interface should be arranged in the control system answered.
Compared with prior art, the utility model has the beneficial effects that：
Tobacco electric heater unit described in the utility model is using carbon material heating film as heater element, heat to electricity conversion effect
Rate is high, and heating rate is fast, uniformity of temperature profile, and frivolous flexibility, can be bonded, will not produce with the substance to be heated of surface irregularity
The problem of raw hot-spot.
Description of the drawings
Fig. 1 is the structural schematic diagram of tobacco electric heater unit described in the utility model.
Fig. 2 is the schematic diagram of heating element described in the utility model.
Fig. 3 is the schematic diagram of heating element described in the utility model.
Fig. 4 is the schematic cross-section of carbon material heating film described in the utility model.
Fig. 5 is the sectional top view of carbon material heating layer in carbon material heating film described in the utility model.
Fig. 6 is the structural schematic diagram of tobacco electric heater unit described in the utility model.
Specific implementation mode
The utility model is further described With reference to embodiment.Wherein, being given for example only property of attached drawing
Illustrate, expression is only schematic diagram rather than pictorial diagram, should not be understood as the limitation to this patent；In order to which this reality is better described
With novel embodiment, the certain components of attached drawing have omission, zoom in or out, and do not represent the size of actual object；To ability
For field technique personnel, the omitting of some known structures and their instructions in the attached drawings are understandable.
Embodiment 1
As shown in Figure 1, one grows tobacco electric heater unit, including shell 100, the pedestal 200 being set in shell, setting exist
The heating element 300 of hollow cylindrical on pedestal, power supply 400, the control being connect respectively with heating element 300 and power supply 400
Element 500.
As shown in Fig. 2, heating element 300 is rolled by carbon material heating film 600 forms and is formed hollow heating cavity 310
It is heated after being inserted into for tobacco.The size of hollow heating cavity 310 can be adjusted according to actual conditions, hollow heating cavity
310 internal diameter is 5 ~ 9mm, is highly 10 ~ 30 mm.
As shown in Fig. 3 ~ 4, carbon material heating film 600 includes sequentially connected first thermally conductive insulating layer 610, carbon material fever
The 620, second thermally conductive insulating layer 630 of layer.Carbon material heating layer 620 is made of at least one carbon material fever monomer 621, carbon material
The monomer 621 that generates heat includes carbon material layer 6211, electrode 6212, the conducting wire 6213 being connect with electrode, conducting wire 6213 and control element
500 connections.Electrode 6212 is located at the both ends of carbon material layer 6211, is contacted respectively at 90 degree, constitutes a rectangular area, i.e.,
Constitute a carbon material fever monomer 621.Carbon material include any one of carbon nanotube, graphite, graphene and carbon fiber and
A variety of combinations, preferably carbon nanotube layer.
As shown in figure 5, carbon material heating layer 620 can be generated heat by one or more carbon materials, monomer 621 is constituted.Carbon material is sent out
Thermosphere 620 is formed in parallel by multiple carbon materials fever monomer 621, and preferably 2 ~ 3 carbon material fever monomers 621 are formed in parallel,
By the control of control element 500, multiple carbon material fever monomers 621 can individually generate heat.Carbon material generates heat monomer can be with
Independent heating so that the working condition of each carbon material fever monomer can be adjusted according to actual conditions, you can accurate temperature controlling, and can save
Save electricity.Whether can in addition, control element 500 can monitor each carbon material fever monomer 621 in real time under open state
Normal work prompts the carbon material fever monomer 621 of failure.
Usually, the length of carbon material fever monomer 621 is 3 ~ 40mm, and width is 3 ~ 30mm.Carbon material fever monomer
Between resistance is 0.5 ~ 3.5 ohm, and it can be adjusted as needed.
The hollow columnar structures that heating element 300 is at least 1 layer made of being rolled by carbon material heating film 600.It is hollow
Columned heating element 300 can be single layer heating, can also be Multi-layer warming.When being aspirated using tobacco electric heater unit
Heating cavity internal temperature reduces, and the heating structure of multilayer can avoid temperature from obviously fluctuating in time by temperature-compensating, ensures dress
The temperature set is stablized, and user experience is good.
The hollow columnar structures of multilayer carbon material heating film are prevented further to improve the distributing homogeneity of heat
Only hot-spot damages carbon material, and further, heating element 300 is equipped with heat-conducting layer 700, and heat-conducting layer 700 is set to each layer carbon
Between material heating film 600.The material of heat-conducting layer 700 is copper foil or aluminium foil etc..Heat-conducting layer 700 can be reticular structure.Heat conduction
Layer 700 is completely or partially contacted with carbon material heating film.Heat-conducting layer 700 is set up directly in carbon material heating film.
In the present embodiment, for the carbon material heating film 600 for the monomer 621 that generates heat containing multiple carbon materials, carbon material adds
Hotting mask 600 is equipped with multiple temperature control elements for detecting and controlling temperature, and each temperature control element is connected with control element 500.
Multiple temperature control elements are separately positioned at each carbon material fever monomer 621, and according to certain principle Heterogeneous Permutation, are guaranteed
Different zones, the temperature of different parts are enough monitored, ensures that heating temperature is evenly distributed, and can be according to actual conditions to heating temperature
It is adjusted.
Embodiment 2
The present embodiment be the utility model second embodiment, as different from Example 1, as shown in fig. 6, in order into
One step improves the toughness of carbon material heating film, and carbon material heating film 600 further includes supporting layer, and supporting layer is located at the first insulating layer
610 or side of the second insulating layer 630 far from carbon material heating layer.When supporting layer and heating film are made into integration, it is only necessary to the
One kind in one insulating layer 610 or second insulating layer 630.
Heating element 300, which is located at heating cavity 310, is equipped with wearing layer 900, to improve the wear-resisting property at heating cavity.
Wearing layer 900 can be set up directly on carbon material heating film part corresponding with heating cavity.
The carbon material heating membrane part corresponding with shell of heating element 300 is equipped with thermal insulation layer 800.Thermal insulation layer 800 is set
The heat-insulating problem of heating element periphery can be solved by setting, and thermal insulation layer 800 can be made of materials such as asbestos.Thermal insulation layer 800 can
To be made into integration with carbon material heating film, it is only necessary to one kind in the first insulating layer 610 and second insulating layer 630.In addition, heat-insulated
Layer 800 can also be combined into one with supporting layer.
The tolerable temperature of carbon nanotube is restricted, can tolerate maximum temperature by carbon generally, for carbon material heating film
Material itself is limited, if temperature is excessively high or out of control, easily leads to carbon nanotube fever membrane damage, the long-time of heating element 300
Operating temperature range is between 150~260 DEG C.In this regard, tobacco electric heater unit further includes overheating protection unit, overheating protection unit
It is connect with control element 500.
Heating element 300 is detachably connected with pedestal.Pass through above-mentioned setting so that heating element 300 is replaceable, to improve
The utilization rate of whole device extends the service life of whole device.
Other components and connection relation are same as Example 1.
Embodiment 3
The present embodiment is the third embodiment of the utility model, and as different from Example 1, tobacco electric heater unit is also
Including display screen and button, display screen and button are connect with control element 500 respectively.The setting of display screen and button conveniently makes
User operates, to determine that the number or heating region of the carbon material for needing to heat fever monomer 621, adjustment carbon material fever are single
Heating effect of body, including heating region, heating rate, heating temperature etc. meet a variety of user experiences, while an even if list
Body breaks down, then does not influence other fever monomer normal works, improve the stability of heat generating device.
Other components and connection relation are same as Example 1.
Obviously, above-described embodiment of the utility model is only intended to clearly illustrate the utility model example, and
It is not the restriction to the embodiment of the utility model.For those of ordinary skill in the art, in above description
On the basis of can also make other variations or changes in different ways.There is no need and unable to give all embodiments
It is exhaustive.All any modification, equivalent and improvement made within the spirit and principle of the present invention etc., should be included in
Within the protection domain of the utility model claims.
Claims (10)
1. grow tobacco electric heater unit, which is characterized in that including shell, pedestal, the hollow cylindrical being set on the base
Heating element, power supply, the control element being connect respectively with heating element and power supply, the heating element heat film roll by carbon material
System is formed and is formed after hollow heating cavity is inserted into for tobacco and heated.
2. tobacco electric heater unit according to claim 1, which is characterized in that the heating element is to be added by the carbon material
At least 1 layer of hollow columnar structures made of hotting mask rolls.
3. tobacco electric heater unit according to claim 1, which is characterized in that the surface resistance of the carbon material heating film monomer
For 530~12000 Ω/m2。
4. according to any one of the claim 1 ~ 3 tobacco electric heater unit, which is characterized in that the carbon material heating film includes
Carbon material heating layer, the thermally conductive insulating layer being connect with carbon material heating layer；The carbon material heating layer is sent out by least one carbon material
Hot monomer is constituted；Carbon material fever monomer includes carbon material layer, electrode, the conducting wire being connect with electrode, the conducting wire and institute
State control element connection.
5. tobacco electric heater unit according to claim 4, which is characterized in that the carbon material heating layer is by multiple carbon
Material fever monomer is formed in parallel, and the multiple carbon material fever monomer can individually generate heat.
6. tobacco electric heater unit according to claim 1, which is characterized in that the heating element is set close to the side of shell
Set supporting layer.
7. tobacco electric heater unit according to claim 1, which is characterized in that the heating element was contacted with tobacco material
Surface is equipped with wearing layer.
8. tobacco electric heater unit according to claim 2, which is characterized in that the heating element is equipped with heat-conducting layer, described
Heat-conducting layer is arranged between each layer carbon material heating film.
9. tobacco electric heater unit according to claim 1, which is characterized in that the heating element is corresponding with the shell
Carbon material heating membrane part be equipped with thermal insulation layer.
10. tobacco electric heater unit according to claim 1, which is characterized in that the carbon material heating film is equipped at least one
Temperature control element for detecting and controlling temperature, the temperature control element are connected with the control element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820045314.7U CN207912055U (en) | 2018-01-11 | 2018-01-11 | One grows tobacco electric heater unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820045314.7U CN207912055U (en) | 2018-01-11 | 2018-01-11 | One grows tobacco electric heater unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207912055U true CN207912055U (en) | 2018-09-28 |
Family
ID=63616402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820045314.7U Active CN207912055U (en) | 2018-01-11 | 2018-01-11 | One grows tobacco electric heater unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207912055U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110051046A (en) * | 2019-04-30 | 2019-07-26 | 深圳陶陶科技有限公司 | Tube heater and atomizer and electronic cigarette with the heater |
| 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 |
| CN110798922A (en) * | 2019-11-13 | 2020-02-14 | 苏州苏绝电工材料股份有限公司 | Conductive film and preparation method thereof, and heatable mica tube and manufacturing method thereof |
| WO2020098451A1 (en) * | 2018-11-12 | 2020-05-22 | 深圳市赛尔美电子科技有限公司 | Metal-film heating cup |
| CN111418906A (en) * | 2020-03-19 | 2020-07-17 | 云南中烟工业有限责任公司 | Flexible heating element, preparation method and application thereof |
| WO2022063131A1 (en) * | 2020-09-22 | 2022-03-31 | 深圳市合元科技有限公司 | Aerosol generation device and infrared heater |
| CN114468398A (en) * | 2022-02-11 | 2022-05-13 | 立讯精密工业股份有限公司 | Graphene electronic heating device and preparation method thereof |
| WO2023010999A1 (en) * | 2021-08-03 | 2023-02-09 | 深圳麦克韦尔科技有限公司 | Atomizing core, atomizing assembly and atomizer |
| WO2023045400A1 (en) * | 2021-09-27 | 2023-03-30 | 宁德时代新能源科技股份有限公司 | Electrical apparatus, battery, heating film and manufacturing method therefor and manufacturing device therefor |
-
2018
- 2018-01-11 CN CN201820045314.7U patent/CN207912055U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020098451A1 (en) * | 2018-11-12 | 2020-05-22 | 深圳市赛尔美电子科技有限公司 | Metal-film heating cup |
| CN110051046A (en) * | 2019-04-30 | 2019-07-26 | 深圳陶陶科技有限公司 | Tube heater and atomizer and electronic cigarette with the heater |
| 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 |
| CN110798922A (en) * | 2019-11-13 | 2020-02-14 | 苏州苏绝电工材料股份有限公司 | Conductive film and preparation method thereof, and heatable mica tube and manufacturing method thereof |
| CN111418906A (en) * | 2020-03-19 | 2020-07-17 | 云南中烟工业有限责任公司 | Flexible heating element, preparation method and application thereof |
| WO2022063131A1 (en) * | 2020-09-22 | 2022-03-31 | 深圳市合元科技有限公司 | Aerosol generation device and infrared heater |
| WO2023010999A1 (en) * | 2021-08-03 | 2023-02-09 | 深圳麦克韦尔科技有限公司 | Atomizing core, atomizing assembly and atomizer |
| WO2023045400A1 (en) * | 2021-09-27 | 2023-03-30 | 宁德时代新能源科技股份有限公司 | Electrical apparatus, battery, heating film and manufacturing method therefor and manufacturing device therefor |
| CN114468398A (en) * | 2022-02-11 | 2022-05-13 | 立讯精密工业股份有限公司 | Graphene electronic heating device and preparation method thereof |
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