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CN111759017A - Dry burning prevention electronic atomization device and dry burning prevention method - Google Patents

Dry burning prevention electronic atomization device and dry burning prevention method Download PDF

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Publication number
CN111759017A
CN111759017A CN202010826875.2A CN202010826875A CN111759017A CN 111759017 A CN111759017 A CN 111759017A CN 202010826875 A CN202010826875 A CN 202010826875A CN 111759017 A CN111759017 A CN 111759017A
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CN
China
Prior art keywords
tobacco tar
electrodes
dry
electrode
induction
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Pending
Application number
CN202010826875.2A
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Chinese (zh)
Inventor
王春嵘
赖桂生
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Shenzhen Changneng Huike Technology Co ltd
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Shenzhen Changneng Huike Technology Co ltd
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Priority to CN202010826875.2A priority Critical patent/CN111759017A/en
Publication of CN111759017A publication Critical patent/CN111759017A/en
Pending legal-status Critical Current

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    • AHUMAN NECESSITIES
    • A24TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24FSMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/40Constructional details, e.g. connection of cartridges and battery parts
    • A24F40/46Shape or structure of electric heating means
    • AHUMAN NECESSITIES
    • A24TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24FSMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/10Devices using liquid inhalable precursors
    • AHUMAN NECESSITIES
    • A24TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24FSMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/40Constructional details, e.g. connection of cartridges and battery parts
    • A24F40/42Cartridges or containers for inhalable precursors
    • AHUMAN NECESSITIES
    • A24TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24FSMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/50Control or monitoring
    • A24F40/53Monitoring, e.g. fault detection

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Abstract

The invention belongs to the field of novel cigarette smoking sets, and particularly relates to an anti-dry-burning electronic atomization device and an anti-dry-burning method. The electronic atomization device comprises: the tobacco tar containing bin and the tobacco tar amount sensing device; wherein, the oil smoke volume induction system includes: at least two pairs of induction electrodes, wherein each pair of induction electrodes comprises two electrodes which are arranged on the inner side wall of the tobacco tar containing bin in an opposite mode, all the electrodes can contact the tobacco tar, and all the electrodes are not in contact with each other; when the tobacco tar holds the storehouse for the cuboid shape, at least two pairs of response electrodes set up on four lateral walls of tobacco tar holding the storehouse with face-like response electrode form. In the process of smoking the electronic atomization device by a user, the smoking set is basically in an inclined state, and under the condition, the electronic atomization device and the judgment method designed by the invention cannot generate misjudgment, so that the use experience of the user is improved.

Description

Dry burning prevention electronic atomization device and dry burning prevention method
Technical Field
The invention belongs to the field of novel cigarette smoking sets, and particularly relates to an anti-dry-burning electronic atomization device and an anti-dry-burning method.
Background
In recent years, with the development of science and technology and society, people gradually realize the harm of smoking traditional tobacco to human bodies, and in some occasions, the smoking prohibition is gradually limited so as not to bring certain health hidden troubles to people. But due to the appearance of the electronic cigarette, certain psychological and physiological requirements of consumers are met by sucking the atomized smoke, and meanwhile, the dependence on traditional tobacco is reduced, so that the health purpose is achieved.
On the market at present, the tobacco tar that electronic cigarette product mainly utilizes the heater to atomize the storehouse through the electric heating mode with atomizing, produces smog, gets into the consumer oral cavity, reaches the suction and experiences. In the process, tobacco tar basically undergoes physical change from liquid state to gas state without chemical change, so that the components of the smoke are basically harmless to the human body, and the electronic cigarette is a better smoking cessation substitute in the market.
However, in the process of atomizing the tobacco tar, once the amount of the tobacco tar is reduced to be incapable of being absorbed by the atomizing core or the oil guide cotton or the tobacco tar is exhausted, the electronic cigarette can be burned, which can seriously reduce the smoking taste of consumers. Meanwhile, because of the exhaustion of the tobacco tar, the temperature of the atomizing core or the oil guide cotton can be rapidly raised due to the continuous heating of the heating type, and after a certain temperature point is exceeded, the material inside the atomizing core or the oil guide cotton can generate chemical reaction to generate harmful gas, so that the smoking health of consumers is necessarily influenced. Therefore, the dry-burning prevention electronic cigarette appears on the market.
In the process of implementing the invention, the inventor finds that the prior art has at least the following problems:
1. most of dry-burning-prevention electronic cigarettes in the market judge whether a dry-burning phenomenon exists or not by detecting abnormal fluctuation of resistance values of heating wires, and the reasons for the abnormal fluctuation of the resistance values of the heating wires are many, such as changes of external temperature, changes of components of atomized liquid and the like. Therefore, the misjudgment rate of the detection method is high, the electronic cigarette can be protected against dry burning for multiple times, and the smoking experience of a consumer is reduced.
2. The dry-burning prevention operation is carried out on part of the dry-burning prevention electronic cigarette by detecting the exhaustion of the tobacco tar in the atomization bin. The mode hangs a sheetmetal in atomizing storehouse, and the sheetmetal is as two electrodes respectively with atomizing storehouse bottom surface, and the electrically conductive effect when utilizing the tobacco tar to contact two electrodes simultaneously detects the change of resistance value in order to judge the atomizing storehouse tobacco tar liquid level between two electrodes, thinks the tobacco tar and exhausts when detecting two electrode disconnection, starts the dry combustion method protection. And the second mode is that two strip electrodes are designed on the inner walls of two sides of the atomization bin, the resistance value between the two electrodes is detected to judge the change of the tobacco tar liquid level in the atomization bin, and when the two electrodes are detected to be disconnected, the tobacco tar is considered to be exhausted, and dry burning prevention protection is started. The two detection modes can normally detect when the atomization bin is vertically placed on the ground. However, when a user uses an electronic cigarette, the electronic cigarette is usually held in an inclined state by the user's fingers for the user's mouth to draw, and the direction of inclination is random. Under two kinds of above-mentioned detection methods, when the tobacco tar volume is less, when the electron cigarette is the tilt state, two electrodes are contacted to the tobacco tar very big probably simultaneously, two electrode disconnection, and this is the same with the resistance state when the tobacco tar exhausts, and the resistance value is the infinity, and the electron cigarette then can carry out the dry combustion method operation of preventing, but this belongs to the erroneous judgement completely, leads to the user can't carry out normal suction operation.
Disclosure of Invention
The present invention is proposed in order to solve at least one of the above-mentioned problems.
The first aspect of the present invention provides an anti-dry-heating electronic atomizer, comprising: the tobacco tar containing bin and the tobacco tar amount sensing device;
wherein the smoke level sensing means comprises: at least two pairs of induction electrodes, wherein each pair of induction electrodes comprises two electrodes which are arranged on the inner side wall of the tobacco tar containing bin in an opposite mode, all the electrodes can contact the tobacco tar, and all the electrodes are not in contact with each other;
when the tobacco tar containing bin is in a cuboid shape, the at least two pairs of induction electrodes are arranged on four side walls of the tobacco tar containing bin in a planar induction electrode mode; or,
when the tobacco tar containing bin is in a cylindrical shape, the at least two pairs of sensing electrodes are uniformly distributed on four 1/4 circumferential side walls of the tobacco tar containing bin in a planar sensing electrode mode, and the central angle corresponding to each sensing electrode is smaller than 90 degrees.
Preferably, the tobacco tar holds the storehouse middle part and still includes tobacco tar atomizing core, the electronic atomizer that prevents dry combustion method still includes the pair of annular induction electrode of setting in tobacco tar holds the bottom surface of storehouse, and wherein first annular induction electrode surrounds atomizing core, and second annular induction electrode then sets up in the periphery of first annular induction electrode.
When the tobacco tar accommodating bin is not provided with the tobacco tar atomizing core, the first annular induction electrode can also be a planar electrode or a point electrode.
Preferably, the dry-fire prevention electronic atomizer further comprises a detection circuit configured to detect an electrical parameter of the tobacco tar between each pair of sensing electrodes.
Preferably, the electrical parameters of the tobacco tar include, but are not limited to: the voltage of the tobacco tar, the current of the tobacco tar, the capacitance of the tobacco tar and the inductance of the tobacco tar.
When each pair of sensing electrodes cannot be electrically connected, for example, there is no smoke or the amount of smoke is too small to allow the smoke to contact the two sensing electrodes simultaneously, electrical parameters such as voltage, current, capacitance, inductance, etc. of the smoke between each pair of sensing electrodes may change, for example, the resistance of the smoke between each pair of sensing electrodes is infinite, and the voltage and current of the smoke between each pair of sensing electrodes are zero. Specific variations in capacitance and inductance can be obtained by one skilled in the art from live testing of specific circuits.
Preferably, still include the tobacco tar atomizing core in the tobacco tar holds the storehouse, tobacco tar atomizing core bottom is equipped with the inlet port and tobacco tar holds storehouse fluid intercommunication, the bottom of at least two pairs of response electrodes is higher than apart from the distance that the storehouse bottom surface was held to the tobacco tar to the distance of inlet port lower limb apart from the tobacco tar. The purpose is as follows: and judging the state when the tobacco tar is exhausted, namely the state when the tobacco tar amount is reduced to the state when the tobacco tar cannot enter the tobacco tar atomizing core through the oil inlet hole.
As a preferred embodiment of the present invention, at least one of the planar sensing electrodes is replaced by a series of point-like sensing electrodes distributed at intervals.
As a preferable technical solution of the present invention, at least one of the planar sensing electrodes is replaced by an L-shaped strip sensing electrode or an L-shaped rod sensing electrode, the L-shaped strip sensing electrode has a horizontal section and a vertical section which are integrally connected, an end of the horizontal section is in contact with a bottom of an inner side wall of the tobacco tar containing bin, and the vertical section is not in contact with the inner side wall of the tobacco tar containing bin.
Preferably, the horizontal section is perpendicular with tobacco tar holds the storehouse inner wall, the vertical section with tobacco tar holds the storehouse inner wall parallel.
Preferably, the tobacco tar holds the storehouse middle part and still includes tobacco tar atomizing core, prevent dry combustion method electron atomizing device still includes the pair of annular induction electrode of setting in tobacco tar holds the storehouse bottom surface, and wherein first annular induction electrode surrounds atomizing core, and second annular induction electrode then sets up the periphery of first annular induction electrode.
When the tobacco tar accommodating bin is not provided with the tobacco tar atomizing core, the first annular induction electrode can also be a planar electrode or a point electrode.
Preferably, the tobacco tar holds storehouse middle part and still includes tobacco tar atomizing core, tobacco tar atomizing core bottom is equipped with the inlet port and tobacco tar holds storehouse fluid intercommunication, the bottom of at least two pairs of response electrodes is higher than apart from the distance that the tobacco tar held the storehouse bottom surface the distance of inlet port lower limb distance tobacco tar holds the storehouse bottom surface.
In a second aspect, the present invention provides a method for preventing dry-heating of an electronic atomizer, which uses the dry-heating prevention electronic atomizer of the first aspect of the present invention, the method comprising the following steps:
and detecting electrical parameters between the at least two pairs of induction electrodes, judging whether the tobacco tar is exhausted according to the change of the electrical parameters of the at least two pairs of induction electrodes, and determining whether to start an anti-dry burning protection measure.
Preferably, when the resistance between the at least two pairs of sensing electrodes is detected to be infinite, or the voltage between the at least two pairs of sensing electrodes is detected to be zero, the smoke oil is judged to be exhausted, and the anti-dry heating protection measure is started.
The third aspect of the present invention provides a method for preventing dry burning of an electronic atomization device, which uses the electronic atomization device according to the preferred embodiment of the present invention, which includes a point-like inductive electrode, and the method includes the following steps:
and detecting the electrical parameters of the tobacco tar between each pair of point-shaped induction electrodes which are arranged oppositely or between the point-shaped electrodes and the opposite planar electrodes along with the consumption of the tobacco tar, judging whether the tobacco tar is exhausted or not according to the electrical parameters between the two pairs of point-shaped induction electrodes closest to the bottom of the tobacco tar containing bin or the change of the electrical parameters between the point-shaped electrodes closest to the bottom of the tobacco tar containing bin and the opposite planar electrodes, and determining whether to start an anti-dry burning protection measure or not.
Preferably, as the smoke oil is consumed, the resistance of the smoke oil or the voltage of the smoke oil between each pair of point-like sensing electrodes arranged opposite to each other or between the point-like electrodes and the planar electrodes opposite thereto is detected;
when the resistance between two pairs of point-shaped induction electrodes closest to the bottom of the tobacco tar containing bin or the resistance between the point-shaped electrode closest to the bottom of the tobacco tar containing bin and the opposite planar electrode is infinite, or when the voltage between two pairs of point-shaped induction electrodes closest to the bottom of the tobacco tar containing bin or the voltage between the point-shaped electrode closest to the bottom of the tobacco tar containing bin and the opposite planar electrode is zero, the exhaustion of the tobacco tar is judged, and the anti-dry burning protection measure is started.
A fourth aspect of the present invention provides a method for preventing dry burning of an electronic atomization device using the electronic atomization device according to the preferred embodiment of the present invention, which includes the planar inductive electrode and the annular inductive electrode, the method including:
detecting the electrical parameters between the at least two pairs of planar induction electrodes and the electrical parameters between the pair of annular induction electrodes at the bottom of the tobacco tar accommodating bin, judging whether the tobacco tar is exhausted or not according to the change of all the electrical parameters, and determining whether dry burning prevention protection measures are started or not.
Preferably, when it is detected that the resistance between the at least two pairs of planar sensing electrodes and the resistance between the pair of annular sensing electrodes at the bottom of the tobacco tar containing bin are infinite, or when it is detected that the voltage between the at least two pairs of planar sensing electrodes and the voltage between the pair of annular sensing electrodes at the bottom of the tobacco tar containing bin are zero, it is determined that the tobacco tar is exhausted, and the dry-burning prevention protection measure is started.
The design of the annular sensing electrode at the bottom of the tobacco tar containing bin can more accurately reflect the condition that when the amount of the tobacco tar at the bottom of the tobacco tar containing bin is less, the planar sensing electrode on the inner side wall is not immersed, but the annular sensing electrode at the bottom of the tobacco tar containing bin is immersed. Because the smoke oil is not exhausted in this case, the dry-burning prevention protection measures do not need to be started.
In a fourth aspect, the present invention provides a method for preventing dry burning of an electronic atomization device, which uses the electronic atomization device in the preferred technical solution of the first aspect of the present invention, which includes a point-like inductive electrode and a ring-like inductive electrode, and the method includes the following steps:
detecting the electrical parameters of the tobacco tar between each pair of point-shaped induction electrodes which are arranged oppositely with each other along with the consumption of the tobacco tar, judging whether the tobacco tar is exhausted according to the electrical parameters between the two pairs of point-shaped induction electrodes which are closest to the bottom of the tobacco tar containing bin and the change of the electrical parameters between the pair of annular induction electrodes at the bottom of the tobacco tar containing bin, and determining whether to start an anti-dry burning protection measure.
Preferably, as the tobacco tar is consumed, the resistance or the voltage of the tobacco tar between each pair of point-like induction electrodes arranged opposite to each other is detected, when the resistance between the two pairs of point-like induction electrodes closest to the bottom of the tobacco tar containing bin and the resistance between the pair of annular induction electrodes at the bottom of the tobacco tar containing bin are both infinite, or when the voltage between the two pairs of point-like induction electrodes closest to the bottom of the tobacco tar containing bin and the voltage between the pair of annular induction electrodes at the bottom of the tobacco tar containing bin are both zero, the exhaustion of the tobacco tar is judged, and the anti-dry burning protection measure is started.
The tobacco tar receiving chamber of the present invention may have other shapes, and the type and arrangement of the electrodes are similar to the rectangular parallelepiped and cylindrical tobacco tar receiving chambers of the present invention. When the tobacco tar containing bin is in a polyhedral shape, the at least two pairs of induction electrodes are arranged on all side walls of the tobacco tar containing bin in a planar induction electrode mode. When the tobacco tar holds the storehouse for the dysmorphism, the at least two pairs of response electrodes only need with a plurality of surface shape response electrode form interval distribution on all lateral walls of tobacco tar hold the storehouse can.
At least one of the planar sensing electrodes on the inner side wall of the tobacco tar accommodating bin can be replaced by a series of point sensing electrodes distributed at intervals, and can also be replaced by a series of vertical strip electrodes distributed at intervals.
The planar induction electrode on the inner side wall of the tobacco tar containing bin can be replaced by an L-shaped strip induction electrode or an L-shaped rod induction electrode, namely, one part of the induction electrode is ensured to be in contact with the inner side wall of the tobacco tar containing bin, and the other part of the induction electrode is not in contact with the inner side wall of the tobacco tar containing bin.
The inner bottom surface of the tobacco tar containing bin can be provided with paired annular sensing electrodes or paired point sensing electrodes.
The tobacco tar holds the mode of setting up of the response electrode on the storehouse inside wall and makes: when the tobacco tar containing bin inclines at any angle smaller than 90 degrees in any direction, the tobacco tar in the tobacco tar containing bin can simultaneously contact at least 1 pair of induction electrodes.
The induction electrodes of the invention are exposed at least partially to the inner side wall of the tobacco tar containing bin so as to contact the tobacco tar.
Preferably, the wire diameter of the annular induction electrode is adjustable, but the wire diameter is preferably 1 mm. Preferably, the annular sensing electrode is present with a thickness, preferably a thickness of 1 mm.
Preferably, the voltage applied across the sensing electrode is lower than the human body safety voltage, which is a non-safety hazard for consumers during the smoking process.
Preferably, the detection circuit is designed by combining conventional resistors and capacitors, including but not limited to a series connection and a parallel connection of a plurality of resistors, and the voltage stability of the circuit is ensured by the parallel connection of the capacitors.
Because of the difference of the height of tobacco tar liquid level and the angle difference is placed to the smoking set, it is different to lead to tobacco tar and response electrode contact state, and then leads to detection circuitry's resistance value to change, through the steady voltage characteristic of electric capacity, the stability of the data of the sampling of holding voltage, through data analysis and processing at last, calculates the tobacco tar volume, judges whether the tobacco tar exhausts to carry out electron atomizer's dry combustion method protection according to the result. The dry burning prevention protection operation includes but is not limited to operations such as starting up work incapability, vibration reminding, sound reminding, light reminding and the like.
The specific configuration of the detection circuit is common knowledge or conventional technical means of a person skilled in the art of circuit design. The invention does not provide a specific circuit diagram.
The technical scheme can be freely combined on the premise of no contradiction.
The invention has the following beneficial effects:
the invention designs an automatic dry-burning-resistant electronic atomization device for the first time, and the smoke quantity sensing device comprises: at least two pairs of sensing electrodes, each pair of sensing electrodes comprises two electrodes which are arranged on the inner side wall of the tobacco tar containing bin in an opposite mode, all the electrodes can contact the tobacco tar, and all the electrodes are not in contact with each other. The tobacco tar holds the mode of setting up of the response electrode on the storehouse inside wall and makes: when the tobacco tar containing bin inclines at any angle smaller than 90 degrees in any direction, the tobacco tar in the tobacco tar containing bin can simultaneously contact at least 1 pair of induction electrodes.
The detection method of the electronic atomization device comprises the following steps: and when the resistance between the at least two pairs of induction electrodes is infinite, judging that the tobacco tar is exhausted, and starting an anti-dry heating protection measure. Therefore, even if the electronic atomization device is in a random inclined state, the tobacco tar in the tobacco tar containing bin can simultaneously contact with at least one pair of side wall induction electrodes or at least one pair of bottom induction electrodes, the resistance of the tobacco tar between the at least one pair of side wall induction electrodes or the at least one pair of bottom induction electrodes is not infinite, and therefore the electronic atomization device cannot perform anti-dry operation.
Only when the tobacco tar is really exhausted in practice, the smoking set can be judged to be in the tobacco tar exhausted state, compared with the existing smoking set, the anti-dry burning protection method for the smoking set disclosed by the invention firstly notices the problem that the existing anti-dry burning protection is greatly likely to cause misjudgment when the smoking set is inclined, and provides a solution. In the process of smoking the electronic atomization device by a user, the smoking set is basically in a random inclination state, and under the condition, the electronic atomization device and the judgment method designed by the invention cannot generate misjudgment, so that the use experience of the user is improved.
Drawings
Fig. 1 is a perspective view of the tobacco tar containing bin (the upper cover of the tobacco tar containing bin is not shown) according to embodiment 1.
Fig. 2 is a bottom plan view of the tobacco tar containing bin of embodiment 2.
FIG. 3 is a sectional view of the tobacco tar-containing chamber of embodiment 3 (the upper lid of the tobacco tar-containing chamber is not shown).
FIG. 4 is a perspective view of the tobacco tar receiving container according to example 4 (the upper lid of the tobacco tar receiving container is not shown).
FIG. 5 is a sectional view of the tobacco tar-containing chamber of example 5 (the upper lid of the tobacco tar-containing chamber is not shown).
Figure 6 is a partial sectional view of the tobacco tar-containing chamber of example 6 (the upper lid of the tobacco tar-containing chamber is not shown).
FIG. 7 is a perspective view of the tobacco tar-containing chamber of example 7 (the upper lid of the tobacco tar-containing chamber is not shown).
Reference numerals:
1. the tobacco tar containing bin comprises 1-1 parts of tobacco tar atomizing cores, 1-2 parts of oil inlet holes, 2-1 parts of front side wall electrodes, 2-2 parts of left side wall electrodes, 2-3 parts of rear side wall electrodes, 2-4 parts of right side wall electrodes, 2-5 parts of first annular induction electrodes, 2-6 parts of second annular induction electrodes, 21 parts of first side wall induction electrodes, 22 parts of second side wall induction electrodes, 23 parts of third side wall induction electrodes, 24 parts of fourth side wall induction electrodes, 25 parts of point induction electrodes, 26 parts of L-shaped strip induction electrodes, 3 parts of tobacco tar.
Detailed Description
The present invention will be further described with reference to the following embodiments.
Example 1
Referring to fig. 1, an electronic atomizer for preventing dry burning comprises: a tobacco tar accommodating chamber 1 and a tobacco tar amount sensing device;
wherein the smoke level sensing means comprises: the two pairs of induction electrodes are two electrodes which are oppositely arranged on the inner side wall of the tobacco tar containing bin 1, all the electrodes can contact the tobacco tar 3, but all the electrodes are not in contact with each other, the tobacco tar containing bin 1 is in a cuboid shape, and the two pairs of induction electrodes are arranged on four side walls of the tobacco tar containing bin 1 in a planar induction electrode mode and are respectively a front side wall electrode 2-1, a left side wall electrode 2-2, a rear side wall electrode 2-3 and a right side wall electrode 2-4. The dry-fire prevention electronic atomization device also comprises a detection circuit configured to detect the resistance of the tobacco tar 3 between each pair of induction electrodes. The specific configuration of the detection circuit is common knowledge or conventional technical means in the field of circuit design. The invention does not provide a specific circuit diagram.
A method for preventing the dry burning of the electronic atomization device uses the dry burning prevention electronic atomization device in embodiment 1, when the resistance between the two pairs of induction electrodes is detected to be infinite, the exhaust of the tobacco tar 3 is judged, and the dry burning prevention protection measures are started.
When the tobacco tar containing bin 1 is placed obliquely, for example, the tobacco tar 3 does not contact the left sidewall electrode 2-2 of the tobacco tar containing bin 1, but the tobacco tar 3 can still contact the front sidewall electrode 2-1 and the rear sidewall electrode 2-3, the resistance between the left sidewall electrode 2-2 and the right sidewall electrode 2-4 is in an infinite state, but the resistance between the front sidewall electrode 2-1 and the rear sidewall electrode 2-3 is not in an infinite state, at this time, the electronic atomization device of the invention cannot judge that the tobacco tar is in a depleted state, and the anti-dry-burning protection measure cannot be started. Therefore, the electronic atomization device and the method for preventing the electronic atomization device from being burnt can prevent misjudgment.
Example 2
As shown in fig. 2, compared with embodiment 1, the dry-burning prevention electronic atomization device further includes a pair of annular sensing electrodes disposed on the bottom surface of the tobacco tar accommodating chamber 1, wherein the first annular sensing electrode 2-5 is a rectangular bottom surface planar sensing electrode, and the second annular sensing electrode 2-6 is disposed on the outer periphery of the first annular sensing electrode.
When the dry-burning prevention electronic atomization device in embodiment 2 is used, it is determined that the tobacco tar is exhausted and a dry-burning prevention protection measure is started when it is detected that the resistance between the two pairs of planar induction electrodes and the resistance between the pair of annular induction electrodes at the bottom of the tobacco tar accommodating bin 1 are infinite.
The design of the annular sensing electrode at the bottom of the tobacco tar accommodating bin 1 can more accurately reflect the condition that the planar sensing electrode on the inner side wall is not immersed when the amount of the tobacco tar at the bottom of the tobacco tar accommodating bin 1 is less, but the annular sensing electrode at the bottom of the tobacco tar accommodating bin 1 is immersed. Because the tobacco tar is not really exhausted in this case, the dry-burning prevention protection measures are not needed to be started. The bottom of the tobacco tar containing bin 1 can be provided with an opening, and the tobacco tar enters the atomizing component through the opening to be atomized.
Example 3
As shown in fig. 3, compared with the embodiment 1, the tobacco tar containing chamber 1 is provided with a tobacco tar atomizing core 1-1 at the center. The bottom of the tobacco tar atomization core 1-1 is provided with an oil inlet 1-2 which is communicated with the tobacco tar containing bin 1 in a fluid mode, and the distance from the bottom ends of the two pairs of induction electrodes to the bottom surface of the tobacco tar containing bin 1 is larger than the distance from the lower edge of the oil inlet 1-2 to the bottom surface of the tobacco tar containing bin 1.
A method for preventing the dry burning of the electronic atomization device, which uses the dry burning prevention electronic atomization device of embodiment 3, when the resistance between the two pairs of induction electrodes is detected to be infinite, the exhaust of the tobacco tar is judged, and the dry burning prevention protection measure is started. At this time, the state when the tobacco tar is exhausted is judged to be the state when the tobacco tar amount is reduced to the state when the tobacco tar can not enter the tobacco tar atomizing core 1-1 through the oil inlet hole 1-2.
Example 4
Referring to fig. 4, an electronic atomizer for preventing dry burning comprises: a tobacco tar accommodating chamber 1 and a tobacco tar amount sensing device;
wherein the smoke level sensing means comprises: each pair of induction electrodes comprises two electrodes which are oppositely arranged on the inner side wall of the tobacco tar containing bin 1, all the electrodes can contact the tobacco tar, but all the electrodes are not in contact with each other, the tobacco tar containing bin 1 is in a cylindrical shape, and the two pairs of induction electrodes are uniformly distributed on four 1/4 circumferential side walls of the tobacco tar containing bin 1 in a planar induction electrode mode and are respectively a first side wall induction electrode 21, a second side wall induction electrode 22, a third side wall induction electrode 23 and a fourth side wall induction electrode 24. And the central angle of each sensing electrode is smaller than 90 degrees, for example, the central angle of each sensing electrode is 80 degrees.
The tobacco tar containing bin 1 is provided with a tobacco tar atomizing core 1-1 in the center. The bottom of the tobacco tar atomization core 1-1 is provided with an oil inlet 1-2 which is communicated with the tobacco tar containing bin 1 in a fluid mode, and the distance from the bottom ends of the two pairs of induction electrodes to the bottom surface of the tobacco tar containing bin 1 is larger than the distance from the lower edge of the oil inlet 1-2 to the bottom surface of the tobacco tar containing bin 1.
A method for preventing the dry burning of the electronic atomization device, which uses the dry burning prevention electronic atomization device of embodiment 4, when the resistance between the two pairs of induction electrodes is detected to be infinite, the smoke oil is judged to be exhausted, and the dry burning prevention protection measure is started.
Example 5
As shown in fig. 5, the difference from the embodiment 1 is: each of the planar sensing electrodes is replaced by 3 point-shaped sensing electrodes 25 which are distributed at intervals from top to bottom.
A method for preventing dry burning of an electronic atomizer, using the dry burning prevention electronic atomizer of embodiment 5, detecting the resistance of the tobacco tar between each pair of point-like induction electrodes disposed opposite to each other as the tobacco tar is consumed, and when detecting that 2 resistances between two pairs of point-like induction electrodes closest to the bottom of the tobacco tar accommodating chamber 1 are infinite, determining that the tobacco tar is exhausted, and starting dry burning prevention measures.
Example 6
As shown in fig. 6, the difference from example 4 is:
the center of the tobacco tar containing bin 1 is not provided with a tobacco tar atomizing core 1-1.
Each of the planar sensing electrodes is replaced by 3 point-shaped sensing electrodes 25 which are distributed at intervals from top to bottom. The anti-dry-burning electronic atomization device further comprises a pair of annular induction electrodes arranged on the bottom surface of the tobacco tar containing bin 1, and the second annular induction electrodes 2-6 are arranged on the periphery of the first annular induction electrodes 2-5. The annular induction electrode is embedded in the bottom surface of the tobacco tar containing bin 1. The annular induction electrode can be parallel to the bottom surface of the tobacco tar containing bin 1 or protrude relative to the bottom surface of the tobacco tar containing bin 1.
A method for preventing dry-fire of an electronic atomizer using the dry-fire prevention electronic atomizer of embodiment 6, the method comprising the steps of:
and detecting the resistance of the tobacco tar between each pair of point-shaped induction electrodes which are arranged oppositely along with the consumption of the tobacco tar, judging that the tobacco tar is exhausted when detecting that the resistance between the two pairs of point-shaped induction electrodes which are closest to the bottom of the tobacco tar containing bin 1 and the resistance between the pair of annular induction electrodes at the bottom of the tobacco tar containing bin 1 are infinite, and starting anti-dry burning protection measures.
Example 7
As shown in fig. 7, an electronic atomizer for preventing dry burning comprises: a tobacco tar accommodating chamber 1 and a tobacco tar amount sensing device;
wherein the smoke level sensing means comprises: two pairs of induction electrodes, each pair of induction electrodes is two electrodes which are arranged on the inner side wall of the tobacco tar containing bin 1 opposite to each other, and all the electrodes can contact the tobacco tar 3 but do not contact each other.
The tobacco tar holds storehouse 1 and is the cylinder shape, two pairs of response electrodes evenly distributed on four 1/4 circumference lateral walls of tobacco tar holding storehouse 1 with L type strip response electrode 26 form. L type strip response electrode 26 has the horizontal segment and the vertical section of an organic whole connection, the tip of horizontal segment with the tobacco tar holds the bottom contact of storehouse inside wall, vertical section with the tobacco tar holds the storehouse inner wall contactless. The horizontal segment with the tobacco tar holds the storehouse inner wall perpendicular, vertical segment with the tobacco tar holds the storehouse inner wall parallel.
The L-shaped strip sensing electrodes 26 have a width such that when the tobacco tar containing compartment is tilted at any angle less than 90 degrees in any direction, the tobacco tar in the tobacco tar containing compartment can simultaneously contact at least 1 pair of sensing electrodes.
The dry-fire prevention electronic atomization device also comprises a detection circuit configured to detect the voltage of the tobacco tar 3 between each pair of induction electrodes. The specific configuration of the detection circuit is common knowledge or conventional technical means in the field of circuit design. The invention does not provide a specific circuit diagram.
A method for preventing dry-fire of an electronic atomizer using the dry-fire prevention electronic atomizer of embodiment 7, the method comprising the steps of:
and detecting the voltage of the tobacco tar between each pair of L-shaped strip-shaped induction electrodes 26 which are arranged oppositely along with the consumption of the tobacco tar, judging that the tobacco tar is exhausted when detecting that the voltage of the tobacco tar 3 between the two pairs of L-shaped strip-shaped induction electrodes 26 is zero, and starting an anti-dry heating protection measure.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (19)

1. The utility model provides a prevent dry combustion method electron cigarette which characterized in that, the electron cigarette includes: the tobacco tar containing bin and the tobacco tar amount sensing device;
wherein, the oil smoke volume induction system includes: at least two pairs of induction electrodes, wherein each pair of induction electrodes comprises two electrodes which are arranged on the inner side wall of the tobacco tar containing bin in an opposite mode, all the electrodes can contact the tobacco tar, and all the electrodes are not in contact with each other;
when the tobacco tar containing bin is in a cuboid shape, the at least two pairs of induction electrodes are arranged on four side walls of the tobacco tar containing bin in a planar induction electrode mode; or,
when the tobacco tar containing bin is in a cylindrical shape, the at least two pairs of sensing electrodes are uniformly distributed on four 1/4 circumferential side walls of the tobacco tar containing bin in a planar sensing electrode mode, and the central angle corresponding to each sensing electrode is smaller than 90 degrees.
2. The anti-dry electronic cigarette of claim 1, wherein at least one of the planar sensing electrodes is replaced by a series of spaced apart point-like sensing electrodes.
3. The anti-dry-burning electronic cigarette of claim 1, wherein at least one of the planar sensing electrodes is replaced by an L-shaped strip sensing electrode or an L-shaped rod sensing electrode, the L-shaped strip sensing electrode has a horizontal section and a vertical section which are integrally connected, the end of the horizontal section is in contact with the bottom of the inner side wall of the tobacco tar containing bin, and the vertical section is not in contact with the inner side wall of the tobacco tar containing bin;
preferably, the horizontal section is perpendicular with tobacco tar holds the storehouse inner wall, the vertical section with tobacco tar holds the storehouse inner wall parallel.
4. The anti-dry-burning electronic cigarette of claim 1, wherein the middle of the tobacco tar containing chamber further comprises a tobacco tar atomizing core, and the anti-dry-burning electronic cigarette further comprises a pair of annular sensing electrodes disposed on the bottom of the tobacco tar containing chamber, wherein a first annular sensing electrode surrounds the atomizing core, and a second annular sensing electrode is disposed on the periphery of the first annular sensing electrode;
when the tobacco tar accommodating bin is not provided with the tobacco tar atomizing core, the first annular induction electrode can also be a planar electrode or a point electrode.
5. The anti-dry-burning electronic cigarette of claim 2, wherein the middle of the tobacco tar containing chamber further comprises a tobacco tar atomizing core, and the anti-dry-burning electronic cigarette further comprises a pair of annular sensing electrodes disposed on the bottom of the tobacco tar containing chamber, wherein a first annular sensing electrode surrounds the atomizing core, and a second annular sensing electrode is disposed on the periphery of the first annular sensing electrode;
when the tobacco tar accommodating bin is not provided with the tobacco tar atomizing core, the first annular induction electrode can also be a planar electrode or a point electrode.
6. The anti-dry-burning electronic cigarette of claim 3, wherein the middle part of the tobacco tar containing bin further comprises a tobacco tar atomizing core, and the anti-dry-burning electronic cigarette further comprises a pair of annular induction electrodes arranged on the bottom surface of the tobacco tar containing bin, wherein a first annular induction electrode surrounds the atomizing core, and a second annular induction electrode is arranged on the periphery of the first annular induction electrode;
when the tobacco tar accommodating bin is not provided with the tobacco tar atomizing core, the first annular induction electrode can also be a planar electrode or a point electrode.
7. The anti-dry-burn electronic cigarette of any one of claims 1-6, further comprising a detection circuit configured to detect an electrical parameter of the tobacco tar between each pair of sensing electrodes.
8. The anti-dry-heating electronic cigarette of claim 7, wherein the electrical parameters of the tobacco tar include but are not limited to: the voltage of the tobacco tar, the current of the tobacco tar, the capacitance of the tobacco tar and the inductance of the tobacco tar.
9. The anti-dry electronic cigarette of claim 1, wherein the middle portion of the tobacco tar containing chamber further comprises a tobacco tar atomizing core, an oil inlet is disposed at the bottom of the tobacco tar atomizing core and is in fluid communication with the tobacco tar containing chamber, and the distance from the bottom end of the at least two pairs of sensing electrodes to the bottom surface of the tobacco tar containing chamber is greater than the distance from the bottom edge of the oil inlet to the bottom surface of the tobacco tar containing chamber.
10. The anti-dry electronic cigarette of claim 2, wherein the middle portion of the tobacco tar containing chamber further comprises a tobacco tar atomizing core, an oil inlet is disposed at the bottom of the tobacco tar atomizing core and is in fluid communication with the tobacco tar containing chamber, and the distance from the bottom end of the at least two pairs of sensing electrodes to the bottom surface of the tobacco tar containing chamber is greater than the distance from the bottom edge of the oil inlet to the bottom surface of the tobacco tar containing chamber.
11. The anti-dry-burning electronic cigarette of claim 3, wherein the middle part of the tobacco tar containing bin further comprises a tobacco tar atomizing core, the bottom of the tobacco tar atomizing core is provided with an oil inlet hole in fluid communication with the tobacco tar containing bin, and the distance from the lowest end of the L-shaped strip-shaped induction electrode to the bottom surface of the tobacco tar containing bin is greater than the distance from the lower edge of the oil inlet hole to the bottom surface of the tobacco tar containing bin.
12. A method for preventing dry-fire of an electronic cigarette, which uses the dry-fire prevention electronic cigarette of claim 1 or 9, characterized in that the method comprises the following judging steps:
and detecting electrical parameters between the at least two pairs of induction electrodes, judging whether the tobacco tar is exhausted according to the change of the electrical parameters of the at least two pairs of induction electrodes, and determining whether to start an anti-dry burning protection measure.
13. The method according to claim 12, wherein when the resistance between the at least two pairs of sensing electrodes is infinite or the voltage between the at least two pairs of sensing electrodes is zero, the smoke is determined to be exhausted, and the anti-dry burning protection is activated.
14. A method for preventing dry-fire of an electronic cigarette, which uses the dry-fire prevention electronic cigarette of claim 2 or 10, characterized in that the method comprises the following judging steps:
and detecting the electrical parameters of the tobacco tar between each pair of point-shaped induction electrodes which are arranged oppositely or between the point-shaped electrodes and the opposite planar electrodes along with the consumption of the tobacco tar, judging whether the tobacco tar is exhausted or not according to the electrical parameters between the two pairs of point-shaped induction electrodes closest to the bottom of the tobacco tar containing bin or the change of the electrical parameters between the point-shaped electrodes closest to the bottom of the tobacco tar containing bin and the opposite planar electrodes, and determining whether to start an anti-dry burning protection measure or not.
15. The method for preventing the electronic cigarette from being burned dry according to claim 14, wherein the resistance of the tobacco tar or the voltage of the tobacco tar between each pair of point-like sensing electrodes disposed opposite to each other or between a point-like electrode and a planar electrode opposite thereto is detected as the tobacco tar is consumed;
when the resistance between two pairs of point-shaped induction electrodes closest to the bottom of the tobacco tar containing bin or the resistance between the point-shaped electrode closest to the bottom of the tobacco tar containing bin and the opposite planar electrode is infinite, or when the voltage between two pairs of point-shaped induction electrodes closest to the bottom of the tobacco tar containing bin or the voltage between the point-shaped electrode closest to the bottom of the tobacco tar containing bin and the opposite planar electrode is zero, the exhaustion of the tobacco tar is judged, and the anti-dry burning protection measure is started.
16. A method for preventing the electronic cigarette from being dried, which uses the electronic cigarette against the dry burning of claim 4, characterized in that the method comprises the following judging steps:
detecting the electrical parameters between the at least two pairs of planar induction electrodes and the electrical parameters between the pair of annular induction electrodes at the bottom of the tobacco tar accommodating bin, judging whether the tobacco tar is exhausted or not according to the change of all the electrical parameters, and determining whether dry burning prevention protection measures are started or not.
17. The method according to claim 16, wherein when the resistance between the at least two pairs of planar sensing electrodes and the resistance between the pair of annular sensing electrodes at the bottom of the tobacco tar containing bin are both infinite, or when the voltage between the at least two pairs of planar sensing electrodes and the voltage between the pair of annular sensing electrodes at the bottom of the tobacco tar containing bin are both zero, the smoke is determined to be exhausted, and the anti-dry-burning protection measure is activated.
18. A method for preventing the electronic cigarette from being dried, which uses the electronic cigarette for preventing the electronic cigarette from being dried according to claim 5, characterized in that the method comprises the following judging steps: detecting the electrical parameters of the tobacco tar between each pair of point-shaped induction electrodes which are arranged oppositely with each other along with the consumption of the tobacco tar, judging whether the tobacco tar is exhausted according to the electrical parameters between the two pairs of point-shaped induction electrodes which are closest to the bottom of the tobacco tar containing bin and the change of the electrical parameters between the pair of annular induction electrodes at the bottom of the tobacco tar containing bin, and determining whether to start an anti-dry burning protection measure.
19. The method according to claim 18, wherein the resistance or voltage of the tobacco tar between each pair of point-like sensing electrodes disposed opposite to each other is detected as the tobacco tar is consumed, and when the resistance between the two pairs of point-like sensing electrodes closest to the bottom of the tobacco tar accommodating chamber and the resistance between the pair of ring-like sensing electrodes at the bottom of the tobacco tar accommodating chamber are both infinite, or when the voltage between the two pairs of point-like sensing electrodes closest to the bottom of the tobacco tar accommodating chamber and the voltage between the pair of ring-like sensing electrodes at the bottom of the tobacco tar accommodating chamber are both zero, the tobacco tar is judged to be exhausted, and the anti-dry-burning protection measure is activated.
CN202010826875.2A 2020-08-17 2020-08-17 Dry burning prevention electronic atomization device and dry burning prevention method Pending CN111759017A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115135187A (en) * 2020-10-26 2022-09-30 韩国烟草人参公社 Aerosol generating device
WO2023242083A1 (en) * 2022-06-13 2023-12-21 Jt International Sa Identification of liquid resistance in wickless vaporization arrangement
WO2024027780A1 (en) * 2022-08-04 2024-02-08 深圳麦时科技有限公司 Electronic atomization apparatus, e-liquid quantity measurement method and apparatus, and readable storage medium

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115135187A (en) * 2020-10-26 2022-09-30 韩国烟草人参公社 Aerosol generating device
JP2023513149A (en) * 2020-10-26 2023-03-30 ケーティー アンド ジー コーポレイション aerosol generator
EP4072360A4 (en) * 2020-10-26 2023-06-14 KT&G Corporation Aerosol generating device
JP7538874B2 (en) 2020-10-26 2024-08-22 ケーティー アンド ジー コーポレイション Aerosol Generator
WO2023242083A1 (en) * 2022-06-13 2023-12-21 Jt International Sa Identification of liquid resistance in wickless vaporization arrangement
WO2024027780A1 (en) * 2022-08-04 2024-02-08 深圳麦时科技有限公司 Electronic atomization apparatus, e-liquid quantity measurement method and apparatus, and readable storage medium

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