CN109965351B - Peripheral electric heating smoking device and heating control method - Google Patents
Peripheral electric heating smoking device and heating control method Download PDFInfo
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- CN109965351B CN109965351B CN201711445223.9A CN201711445223A CN109965351B CN 109965351 B CN109965351 B CN 109965351B CN 201711445223 A CN201711445223 A CN 201711445223A CN 109965351 B CN109965351 B CN 109965351B
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Abstract
The invention provides a peripheral electric heating smoking device, which can solve the problem of air preheating, and in addition, the heat is taken away through normal-temperature air preheating, so that the outer surface of the peripheral electric heating smoking device achieves the cooling effect, and the smoking experience is improved. The invention relates to a technical scheme of a peripheral electric heating smoking device, which comprises the following steps: an upper sealing cover and a lower sealing cover are arranged on the outer shell, and an air inlet is arranged on the upper sealing cover; the heating component is arranged in the outer shell and comprises a heating shell and a heating pipe arranged in the heating shell, the heating pipe encloses a hollow airflow cavity, and external air flows into a gap between the outer shell and the heating shell through the air inlet hole and flows through the airflow cavity from bottom to top. The invention also provides a heating control method of the peripheral electric heating smoking device.
Description
Technical Field
The invention relates to the technical field of tobacco smoke, in particular to a peripheral electric heating smoking device. The invention also relates to a heating control method of the peripheral electric heating smoking device.
Background
Nowadays, new tobacco is gradually developed as a substitute for traditional cigarettes for reducing tar and harm. The traditional cigarettes can generate a plurality of harmful substances in the combustion process, and the tobacco products are not combusted when being heated, so that smoke is generated by heating the tobacco, and the smoke is sucked by a user, so that the release amount of the harmful substances is greatly reduced.
In the traditional electric heating smoking device, the gas entering the heating cavity or the heating pipe is normal-temperature air, so that the smoke cooling and the uneven air flow temperature in the smokeable material are easily caused, and the smoking taste is affected. Preheating the air is therefore critical to solving this problem. Meanwhile, the heat insulation component of the existing electric heating smoking device is unreasonable, and when heating and smoking are carried out, the temperature reduction treatment is imperfect, so that the burning sensation is easily generated on the outer surface of the smoking device, and the use experience of consumers is affected.
Disclosure of Invention
The invention provides a peripheral electric heating smoking device, which can solve the problem of air preheating, and in addition, the heat is taken away through normal-temperature air preheating, so that the outer surface of the peripheral electric heating smoking device achieves the cooling effect, and the smoking experience is improved.
The invention relates to a technical scheme of a peripheral electric heating smoking device, which comprises the following steps:
an upper sealing cover and a lower sealing cover are arranged on the outer shell, and an air inlet is arranged on the upper sealing cover;
the heating component is arranged in the outer shell and comprises a heating shell and a heating pipe arranged in the heating shell, the heating pipe encloses a hollow airflow cavity, and external air flows into a gap between the outer shell and the heating shell through the air inlet hole and flows through the airflow cavity from bottom to top.
Preferably, the heating member further includes a heat retaining layer surrounding the heating pipe, and a heat insulating member surrounding the heat retaining layer.
Preferably, the length of the heat insulating member is not less than the length of the heat retaining layer.
Preferably, the heating member further comprises a limiting member, and the limiting member is located at the bottom of the heating tube.
Preferably, the heating device further comprises an energy source which is arranged in the outer shell and is connected with the heating component.
Preferably, the smoking device further comprises a controller and a key PCB circuit board connected with the controller, wherein the controller controls the switch of the peripheral electric heating smoking device according to the received signal.
Preferably, the energy charging system further comprises a charging PCB circuit board connected with the controller, and the controller controls the charging of the energy according to the received signals.
Preferably, the cleaning device further comprises a cleaning assembly, wherein the cleaning assembly is built in the outer shell, and the cleaning assembly comprises a cleaning shell and a cleaning member.
The heating control method of the peripheral electric heating smoking device specifically comprises the following steps:
firstly, continuously preheating tobacco materials in an airflow cavity by heat generated by a heating component;
and secondly, judging whether the preheating meets preset conditions, and when the preheating meets the preset conditions, intermittently heating the tobacco material by the heating component.
By adopting the technical scheme, external gas (usually normal-temperature air flow) enters the outer shell through the air inlet hole, flows through the gap between the outer shell and the heating shell, then reaches the bottom of the air flow cavity, and finally flows through the air flow cavity from bottom to top. When a user sucks the tobacco material 1, air flow continuously enters from the air inlet hole, enters the interior of the tobacco material from the air flow cavity and is supplied to the user for sucking. When normal temperature air current passes through the space between shell body and the heating shell body, the waste heat of the heating shell body generates a preheating function on the air current, so that the air current enters the inside of the tobacco material 1 after the temperature rises, the energy utilization rate is improved, meanwhile, the bad taste caused by flue gas condensation is effectively avoided, and good suction experience is brought.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
Figure 1 (a) (b) is a block diagram of a peripheral electrically heated smoking device according to the present invention;
figure 2 is a front cross-sectional view of a peripheral electrically heated smoking device of the present invention;
figure 3 is a cross-sectional view of a heating element of a peripheral electrically heated smoking device of the present invention;
figure 4 is a bottom view of a heating member of a peripheral electrically heated smoking device of the present invention;
figure 5 is a block diagram of a heating tube of a heating element of a peripheral electrically heated smoking device of the present invention;
figure 6 is a top view of a peripheral electrically heated smoking device of the present invention;
figure 7 is a bottom view of a peripheral electrically heated smoking device of the present invention;
figure 8 is a method of startup heating and process control of a peripheral electrically heated smoking device according to the present invention;
figure 9 is a block diagram of a cleaning member of a peripheral electrically heated smoking device of the present invention.
Detailed Description
The invention provides a peripheral electric heating smoking device, which can solve the problem of air preheating, and in addition, the heat is taken away through normal-temperature air preheating, so that the outer surface of the peripheral electric heating smoking device achieves the cooling effect, and the smoking experience is improved.
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to the drawings, the technical scheme of the peripheral electric heating smoking device of the invention comprises the following steps:
the shell body 3, be equipped with upper closing cap 2 and lower closing cap 17 on the shell body 3, be equipped with the inlet port on the upper closing cap. The outer housing 3 is convenient for a user to grip when using the peripheral electrically heated smoking device so that the user inhales the volatilized smokable material compound from the tobacco material 1 containing the filter.
The heating member 18 is arranged in the outer shell 3 and comprises a heating shell 5 and a heating pipe 7 arranged in the heating shell 5, the heating pipe 7 surrounds a hollow airflow cavity 8, and external air flows into a gap between the outer shell 3 and the heating shell 5 through the air inlet hole and flows through the airflow cavity 8 from bottom to top.
As shown by the air flow arrows in fig. 4 and fig. 6, the upper cover 2 is provided with a plurality of air inlet holes 4, the air inlet holes 4 are distributed around the air flow cavity 8, and the diameter of the air inlet holes 4 is smaller than the transverse diameter of the air flow cavity 8. It should be noted that the air intake holes 4 are not limited to being distributed around the airflow chamber 8, but may be a half or a point around the airflow chamber 8.
In addition, the cross-sectional shape of the intake hole 4 is not limited to a circle, and may be other regular polygons or irregular polygons.
By adopting the technical scheme, external air (usually normal-temperature air flow) enters the outer shell 3 through the air inlet holes 4, flows through a gap between the outer shell 3 and the heating shell 5, then reaches the bottom of the air flow cavity 8, and finally flows through the air flow cavity 8 from bottom to top. When a user sucks the tobacco material 1, air flow continuously enters from the air inlet hole 4, enters the interior of the tobacco material 1 through the air flow cavity 8, and is supplied to the user for sucking. When normal temperature air current passes through the space between the outer shell 3 and the heating shell 5, the waste heat of the heating shell 5 generates a preheating function on the air current, so that the air current enters the inside of the tobacco material 1 after the temperature rises, the energy utilization rate is improved, meanwhile, the bad taste caused by flue gas condensation is effectively avoided, and good suction experience is brought.
In the above peripheral electrically heated smoking device, the heating member 18 comprises the following components:
(1) The heating pipe 7, the heating pipe 7 encloses a hollow airflow cavity 8, the airflow cavity 8 can be used for inserting the tobacco material 1, and the heating pipe 7 can provide heat for the tobacco material 1.
The shape of the heating pipe 7 is not limited to the hollow cylinder having a circular cross section as shown in the drawings. The heating pipe 7 may be a hollow polygonal cylinder, such as a hollow quadrangular cylinder or a hollow hexagonal cylinder, and the longitudinal outer surface of the cylinder is not limited to the cylinder, and may be a polygonal outer surface cylinder, such as a cylinder with a quadrangular or hexagonal outer surface.
The diameter of the airflow cavity 8 surrounded by the heating pipe 7 is slightly larger than the outer diameter of the tobacco material 1, such as 0.1mm-0.3 mm.
As shown in fig. 5, the outer surface of the heating tube 7 is attached with a resistive heating element 21, so that when the heating element 21 is energized, electric current is generated and heat is generated, the heating tube 7 generates temperature to heat the tobacco material 1, the heating element 21 may be in a sheet shape or a cylindrical shape, and is closely attached to the heating tube 7, and the heating tube 7 is made of a thermally conductive ceramic material, for example, silicon nitride ceramic, etc.
The heating element 21 and the heating tube 7 can be combined in various modes, the heating element 21 can be adhered by using high-temperature-resistant glue or welded together by adopting a welding process, the heating element 21 is tightly attached to the outer surface of the heating tube 7, meanwhile, a printing process can be adopted, a liquid conductive material is printed on the outer surface of the heating tube 7, and the heating element 21 is formed after cooling and solidification. In order to ensure that the heating pipe 7 is heated and then rapidly rises, the thickness of the heating pipe 7 is smaller than 2.5mm, and the length is smaller than 40mm.
(2) And the limiting component 9 is positioned at the bottom of the heating pipe 7, so that the tobacco material 1 can be prevented from being excessively inserted.
(3) The heat-retaining layer 6 can prevent the heat of the heating pipe 7 from diffusing outwards.
The outer part of the heating pipe 7 is surrounded by a heat-preserving layer 6 with a hollow cylinder structure, and the heat-preserving layer 6 is made of a heat-insulating material with low heat conductivity coefficient, such as nano aerogel, a vacuum heat-insulating plate and the like. The inner diameter of the heat-preserving layer 6 is larger than the outer diameter of the heating pipe 7, and the heat-preserving layer 6 and the heating pipe 7 are connected together in a point contact or line-surface contact mode so as to limit heat conduction to the maximum extent.
(4) The heat insulating member 20 can perform a heat insulating function.
The heat preservation 6 is externally surrounded by a heat insulation member 20, the heat insulation member 20 is a hollow cylinder, the inner diameter of the heat insulation member 20 is larger than the outer diameter of the heat preservation 6, the length of the heat insulation member 20 is not smaller than the length of the heat preservation 6, and the heat preservation 6 and the heat insulation member 20 are connected together in a point contact or line-surface contact mode so as to limit heat conduction to the greatest extent.
The heat insulating member 20 may be heat resistant plastic or metal. The heat insulating member 20 has a heat reflective coating inside to prevent heat from being transmitted from the inside to the outside of the heating member 18 to the greatest extent, and the coating may be attached to the inner surface of the heat insulating member 20 in a plating or printing form, and the coating material may be, but is not limited to, a metal material such as silver, copper, aluminum, etc.
The heat insulation layer 6 and the heat insulation member 20 can prevent heat generated by the heating pipe 7 from diffusing from the inside to the outside of the heating member 18, and can play a role in heat insulation, so that the energy source 15 and the controller 12 are kept within a reasonable working environment temperature range.
(5) The heating housing 5 may fix the entire heating member 18.
Because the heat preservation 6 and the heat insulation component 20 can not completely isolate the heat from the inside of the smoking device 18 to the outside, the temperature of the outer surface of the shell 5 is higher, and at the same time, when normal-temperature air flows through the gap between the outer shell 3 and the heating shell 5, a large amount of heat is taken away while preheating, so that the temperature of the outer surface of the outer shell 3 tends to be normal temperature, when a user uses the smoking device, burning sensation can not be generated, the cooling effect is achieved, and the smoking experience is improved.
As is apparent from the above description, the resistance heating element 21 is attached to the heating pipe 7 so that current is generated in the heating element 21 when the current is applied, thereby generating heat. Therefore, in order to cooperate with the operation of the heating element 21, the outer casing 3 is further provided with an energy source 15, a controller 12 (including PCB board and program), a switch key 16, a charging PCB circuit board 14, a key PCB circuit board 19, and a charging port 13.
The energy source 15 may include a battery, such as a lithium ion battery, an alkaline battery, a Ni battery, etc., and is electrically coupled to the heating member 18 to provide electrical energy to the heating member 18 when desired. It should be noted that, the energy source 15 may have other types of energy source providing manners, such as parallel connection or serial connection of a plurality of batteries, and other energy source providing manners of other non-battery components.
The heating member 18 obtains electrical energy from the energy source 15, the electrical energy is connected to the heating tube 7 through relevant electrical connection, the heating tube 7 converts the electrical energy into joule heat to be provided to the tobacco material 1, and the tobacco material 1 volatilizes the gas containing aromatic compounds and nicotine after being heated but not combusted for the user to inhale. The tobacco material 1 may be a filter-containing cigarette made of cut tobacco, or may be a filter-containing cigarette made of other forms, such as a tobacco sheet, or may be a cylindrical tobacco material of other forms.
To facilitate the heating member 18 to obtain energy from the energy source 15, the heating member 18 and the energy source 15 are mechanically in close proximity, but are not limited to, and may be arranged in parallel, or in an up-down arrangement, as shown. The controller 12, the charging PCB 14 and the key PCB 19 are wired and mounted separately. The charging PCB 14 and the key PCB 19 are electrically connected to the controller 12 through signal lines and power lines, and the controller 12 responds to corresponding signals and sends instructions to realize the switching or charging of the peripheral electrically heated smoking device through the CPU. It will be appreciated that other layouts or mounting arrangements may be selected for the circuit board, such as the integral routing and mounting of the charging PCB 13 and the controller 12, or the routing and mounting of the three using one circuit board.
Further, as shown in fig. 9, the peripheral electrically heated smoking device of the present invention further comprises a cleaning housing 10 and a cleaning member 11 built into the cleaning housing 10. The cleaning housing 10 is provided with an opening on the side adjacent to the heating member 18. The base of the cleaning member 11 is cylindrical, the diameter is equal to or slightly smaller than the inner diameter of the airflow cavity 8, cleaning pieces with hairbrush characteristics are arranged above the base of the cleaning member 11, and the cleaning pieces are arranged in a staggered manner and can store scattered fragments and tobacco oil of the tobacco material 1.
The cleaning member 11 is designed to be in a push-and-pop structure and is matched with the peripheral electric heating smoking device, so that the cleaning member can be conveniently taken out and installed when scattered chips or tobacco tar needs to be cleaned.
Referring to fig. 8, the heating control method of the peripheral electrically heated smoking device of the present invention comprises the steps of:
step S1, starting a power supply;
in step S2, the controller 12 samples the relevant voltage and current signals and determines whether the current pumping condition is satisfied. For example, an excessively low voltage indicates that the energy source 15 is insufficient to automatically turn off the energy source 15. For another example, an excessive current indicates a short circuit of the device to automatically shut off the energy source 15.
Step S3, in which the device will initiate and execute a preheating program of the tobacco material 1, in which the controller 12 will perform uninterrupted continuous preheating of the heating tube 7 with a fixed supply power in order to achieve a rapid preheating to bring the tobacco material 1 to a certain smoke quantity.
Step S4, judging whether the preheating program meets the preset condition (namely whether the smoke amount sucked by the first port is met) or not, wherein the preset condition is based on time, and if the preheating time reaches a set value, the peripheral electric heating smoking device heats the tobacco material 1 in different control modes through steps S5, S6, S7 and S8; if the preheating time does not reach the set value, heating is continued.
Further, after the preheating in step S4 is completed, a prompt is given to the user that the suction action of the smokable material 1 can be performed, such as emitting a vibration signal or an LED lamp signal, etc.
In step S5, the controller 12 performs intermittent heating on the heating pipe 7 by a control program, and the specific mode is that the heating-non-heating is controlled under a certain time duty ratio, and more specifically, the heating time and the non-heating time are executed according to 1:9.
Step S6, in which the controller 12 determines whether to perform step S7 to reheat the tobacco material 1, according to whether the heating time of step S5 satisfies the set value.
In step S7, the controller 12 will adjust the duty ratio of the "heating-non-heating" time to heat the heating tube 7, more specifically, the heating time and the non-heating time are executed according to 1:7, and after the step S7 reaches the predetermined heating time, the controller 12 will make a determination, and generate a corresponding action to turn off the energy.
According to the heating control method, firstly, the tobacco material 1 is preheated to achieve the first smokable smoke amount, and then staged heating program control is carried out to ensure the smoke amount (suction experience) and simultaneously prolong the smokable time of the smokable material to the maximum extent. Further, the heating control is performed on the heating pipe under the specific mode of heating-non-heating under a certain time duty ratio, more specifically, the first stage of heating-non-heating is performed under the specific mode of heating-non-heating at a time duty ratio of 1:9, and the second stage of heating-non-heating is performed under the specific mode of heating-non-heating at a time duty ratio of 1:7. It will be appreciated that the staged heating method is not limited to the specific time duty cycle described above.
The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. A peripheral electrically heated smoking device, comprising:
an upper sealing cover and a lower sealing cover are arranged on the outer shell, and an air inlet is arranged on the upper sealing cover;
the heating component is arranged in the outer shell and comprises a heating shell and a heating pipe arranged in the heating shell, the heating pipe encloses a hollow airflow cavity, the airflow cavity is communicated with the outside through the upper sealing cover, and external air flows into a gap between the outer shell and the heating shell through the air inlet and flows through the airflow cavity from bottom to top;
the cleaning assembly is arranged in the outer shell, the cleaning assembly comprises a cleaning shell and a cleaning member, an opening is formed in one side, close to the heating member, of the cleaning shell, and cleaning pieces are arranged above the base of the cleaning member and used for storing fragments and tobacco tar of tobacco materials scattered from the opening.
2. The peripheral electrically heated smoking device of claim 1, wherein the heating member further comprises a thermal insulation layer surrounding the heating tube, and a thermal insulation member surrounding the thermal insulation layer.
3. The peripheral electrically heated smoking device of claim 2, wherein the length of the insulating member is not less than the length of the thermal barrier.
4. A peripheral electrically heated smoking device according to claim 1 or claim 2, wherein the heating member further comprises a stop member located at the bottom of the heating tube.
5. The peripheral electrically heated smoking device of claim 1, further comprising an energy source built into the outer housing and connected to the heating member.
6. The peripheral electrically heated smoking device of claim 5, further comprising a controller and a key PCB circuit board connected to the controller, the controller controlling the switching of the peripheral electrically heated smoking device in response to the received signal.
7. The peripheral electrically heated smoking device of claim 6, further comprising a charging PCB circuit board connected to the controller, the controller controlling charging of the energy source based on the received signal.
8. A heating control method of a peripheral electrically heated smoking device according to any of claims 1 to 7, comprising:
firstly, continuously preheating tobacco materials in an airflow cavity by heat generated by a heating component;
and secondly, judging whether the preheating meets preset conditions, and when the preheating meets the preset conditions, intermittently heating the tobacco material by the heating component.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711445223.9A CN109965351B (en) | 2017-12-27 | 2017-12-27 | Peripheral electric heating smoking device and heating control method |
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| CN201711445223.9A CN109965351B (en) | 2017-12-27 | 2017-12-27 | Peripheral electric heating smoking device and heating control method |
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| CN109965351A CN109965351A (en) | 2019-07-05 |
| CN109965351B true CN109965351B (en) | 2023-05-30 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112601465B (en) * | 2019-11-28 | 2023-11-07 | 深圳葭南科技有限公司 | Tool accessory structure and electronic tobacco flue-curing device assembly |
| CN111165906A (en) * | 2020-01-22 | 2020-05-19 | 同济大学 | Air preheating type heating non-combustion cigarette and working method |
| WO2021152006A1 (en) * | 2020-01-28 | 2021-08-05 | Nerudia Limited | Cleaning device for a smoking substitute device |
| EP3858172A1 (en) * | 2020-01-28 | 2021-08-04 | Nerudia Limited | Cleaning device for a smoking substitute device |
| CN111329130B (en) * | 2020-03-30 | 2022-08-09 | 贵州中烟工业有限责任公司 | Heating non-combustion cigarette based on non-uniform heating control |
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| CN204317504U (en) * | 2014-12-03 | 2015-05-13 | 深圳市合元科技有限公司 | Cure hot type electrical smoking device |
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