CN112293798A - Electronic cigarette atomizer and flowing tobacco tar amount adjusting method thereof - Google Patents

Abstract

The invention discloses an electronic cigarette atomizer and a method for adjusting the amount of flowing tobacco tar thereof, wherein the electronic cigarette atomizer comprises an oil bin device with an oil outlet, an atomization core is arranged below the oil bin device, atomization cotton is arranged on the upper surface of the atomization core, the oil outlet is arranged corresponding to the end part of the atomization cotton, a preheating and expanding oil control sheet and a corresponding deformation gap are arranged between the oil bin device and the atomization cotton, the deformation gap is positioned below the oil outlet, so that the oil control sheet is in contact with the tobacco tar, and the oil control sheet is positioned on one side of the oil outlet at normal temperature. According to the invention, the size of the oil outlet is adjusted through the expansion with heat and contraction with cold of the oil control sheet, namely the size of the flowing tobacco tar is adjusted, so that the phenomenon that the ultrasonic atomization sheet is soaked by the tobacco tar due to the fact that the fluidity of the tobacco tar is enhanced when the temperature of the tobacco tar is raised is effectively avoided, the tobacco tar on the ultrasonic atomization sheet is fully atomized, and a user is prevented from smoking tobacco tar particles during continuous smoking.

Description

Electronic cigarette atomizer and flowing tobacco tar amount adjusting method thereof

Technical Field

The invention relates to an electronic smoking set, in particular to an electronic cigarette atomizer and a method for adjusting the amount of flowing tobacco tar thereof.

Background

In the existing ultrasonic atomizer, when a user continuously smokes, heat released by the ultrasonic atomization sheet is absorbed by tobacco tar, so that the temperature of the tobacco tar in the oil bin is increased, the fluidity of the tobacco tar is enhanced, but an oil outlet of the oil bin is unchanged, so that the outflow of the tobacco tar is increased, the ultrasonic atomization sheet is soaked by the tobacco tar or the tobacco tar is insufficiently atomized, and the user easily inhales the tobacco tar or generates a situation of small smoke amount.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides an electronic cigarette atomizer capable of adjusting the size of an oil outlet and avoiding unstable tobacco tar outflow due to temperature rise of tobacco tar and a flowing tobacco tar amount adjusting method thereof.

In order to solve the technical problem, the invention provides an electronic cigarette atomizer which comprises an oil bin device with an oil outlet, wherein an atomization core is arranged below the oil bin device, atomization cotton is arranged on the upper surface of the atomization core, the oil outlet is arranged corresponding to the end part of the atomization cotton, a preheating expansion oil control sheet and a corresponding deformation gap are arranged between the oil bin device and the atomization cotton, the deformation gap is positioned below the oil outlet, the oil control sheet is in contact with tobacco tar, the oil control sheet is positioned on one side of the oil outlet at normal temperature, and after heat absorption, the oil control sheet expands towards the deformation gap, so that part of the oil outlet is shielded by the oil control sheet.

After the ultrasonic atomization piece work of electron smog spinning disk atomiser, when the smog was controlled to ten mouthfuls of suction in succession at the user, the heat that the ultrasonic atomization piece released was absorbed by the tobacco tar, made the tobacco tar temperature rise, the velocity of flow of tobacco tar accelerates, makes the corresponding increase of the tobacco tar volume that flows on the ultrasonic atomization piece, and the ultrasonic atomization piece probably appears being soaked by the tobacco tar, and then makes the user absorb the phenomenon of tobacco tar. The invention arranges the preheating expansion oil control sheet and the corresponding deformation gap, the deformation gap is arranged below the oil outlet, the oil control sheet is directly contacted with the tobacco tar, the temperature of the oil control sheet is increased along with the increase of the temperature of the tobacco tar, the molecular activity of the oil control sheet is enhanced in the process of the temperature rise of the oil control sheet absorbing heat, the volume of the oil control sheet is expanded to gradually block the oil outlet, and further the quantity of the tobacco tar discharged from the oil outlet is reduced, thereby avoiding the phenomenon that the ultrasonic atomization sheet is soaked by the tobacco tar due to the enhancement of the fluidity of the tobacco tar when the temperature of the tobacco tar is increased, fully atomizing the tobacco tar on the ultrasonic atomization sheet, preventing a user from absorbing the tobacco tar when continuously smoking (if the quantity of the tobacco tar flowing onto the ultrasonic atomization sheet is increased, but the atomization efficiency of the ultrasonic atomization sheet is not changed, partial tobacco tar can not be fully atomized and escapes, and the particles of the tobacco tar are bigger, the user feels smoking tobacco oil after inhaling into the mouth).

When the temperature of the tobacco tar is reduced, the temperature of the oil control sheet is reduced, the volume of the oil control sheet is reduced, the oil outlet is enlarged, the oil outlet returns to the original state, when smoking is started again, the tobacco tar at the oil outlet can be sufficiently supplied, and the phenomenon that the ultrasonic atomization sheet is dry-burned is avoided.

Further, the bottom of the oil bin device is provided with a fixing groove for installing the oil control sheet and the deformation gap, the fixing groove is communicated with the deformation gap, and the oil control sheet is embedded or extruded and fixed in the fixing groove at normal temperature.

Further, the oil control sheet is composed of an expansion zone and a temperature sensitive zone, the temperature sensitive zone is disposed inside the expansion zone, and a portion of the temperature sensitive zone extends to a surface of the expansion zone to contact the soot. The temperature sensitive area is used for contacting with the tobacco tar to response the tobacco tar temperature and absorb and transmit the tobacco tar heat and give the expansion zone, thereby make the material of expansion zone absorb the heat more faster more even, play the effect that the volume expands rapidly finally. The material of the temperature sensitive area is sensitive to temperature, and can adopt metal materials, diamond, ceramics and other good heat conduction materials, and the material of the expansion area is a material which expands with heat and contracts with cold, and can adopt one or a mixture of zinc alloy, magnesium alloy, plastic and the like.

Further, the upper surface of the oil control sheet is flush, and the temperature sensitive area extends to the upper surface of the oil control sheet and extends to the side close to the oil outlet. Or, the middle part of accuse oil piece is protruding, temperature sensitive area extends to bellied upper surface, the middle part of fixed slot sets up the first installation department that communicates the oil storehouse, the arch of accuse oil piece is arranged in the first installation department, just the oil-out directly is regarded as the space warp.

Further, the atomizing core includes the silica gel cover atomizing cotton and ultrasonic atomization piece, the upper surface symmetry of silica gel cover sets up just right first dead slot and the second dead slot of oil-out, and first dead slot is linked together with the second dead slot, and second dead slot intercommunication sets up the oil bunker device with atomizing chamber between the ultrasonic atomization piece, the inlet opening of first dead slot is less than the inlet opening of second dead slot, and the outlet opening of first dead slot is greater than the oil-out, the cotton both ends of atomizing cover on first dead slot and second dead slot, the cotton middle part of atomizing recessed with the ultrasonic atomization piece contact forms the atomizing district, makes the atomizing cotton that first dead slot and second dead slot correspond be unsettled state. Like this, not only can prevent that first dead slot from being stopped up by the oil droplet and influencing the gas replacement of oil-out, the gas of atomizing intracavity gets into first dead slot from the second dead slot moreover to in first dead slot and second dead slot permeate through the atomizing cotton and enter into the oil sump from the oil-out, make in the oil sump tobacco tar and gas replacement more smooth and easy, thereby guaranteed the velocity of flow of tobacco tar, and then make the effect of ultrasonic atomization piece atomizing tobacco tar better, be unlikely to the ultrasonic atomization piece dry combustion method phenomenon of appearing. In addition, after the atomized cotton covers the first empty groove and the second empty groove, two sides of the atomized cotton are abutted to the end surface of the oil outlet of the oil bin shell by the end surface of the top of the silica gel sleeve, and the abutting positions of the two sides of the atomized cotton are pressed too tightly to guide the tobacco tar, so that the smoke tar guiding part of the atomized cotton is only the position corresponding to the first empty groove and the second empty groove, the flow of the tobacco tar is controlled, the phenomenon that the ultrasonic atomization sheet is soaked by the tobacco tar is reduced, and meanwhile, the phenomenon that the replacement speed of the tobacco tar and gas in the oil bin is slow due to the fact that the atomized cotton falls into the first empty groove or the second empty groove to cause the slow oil guiding speed is prevented, and the ultrasonic atomization sheet is burnt dry.

Further, the upper surface of silica gel cover still the symmetry is provided with the cotton fixed slot of atomizing, the cotton both ends of atomizing cover respectively on first dead slot and second dead slot, and establish in the cotton fixed slot of atomizing.

Further, the ultrasonic atomization sheet comprises an upper surface electrode and a lower surface electrode, the upper surface electrode is connected with the outer electrode, the lower surface electrode is connected with the inner electrode, and a resistance plate is arranged between the inner electrode and the outer electrode.

Further, the first empty groove is positioned outside the second empty groove.

In order to solve the technical problem, the invention also provides a method for adjusting the amount of flowing tobacco tar of the electronic cigarette atomizer, which comprises the following steps:

a. the atomizer is started to work, a user continuously sucks 5-10 mouths of smoke, and heat released by the ultrasonic atomization sheet is absorbed by tobacco tar;

b. the temperature of the tobacco tar rises, and meanwhile, the oil control sheet heats through contact with the tobacco tar, so that the temperature of the oil control sheet is consistent with the temperature of the tobacco tar finally;

c. when the temperature of the tobacco tar rises along with the temperature rise of the tobacco tar, the volume of an expansion area of the oil control sheet is increased to shield one part of the oil outlet, so that the amount of the tobacco tar flowing out of the oil outlet is reduced, and the phenomenon that the tobacco tar flows to the ultrasonic atomization sheet when the temperature rise causes the fluidity of the tobacco tar to be enhanced, the ultrasonic atomization sheet is soaked, the smoke amount is small or the tobacco tar is sucked by a user is avoided;

d. when smoking is not performed, the temperature of the tobacco tar is gradually reduced, the temperature of the oil control sheet is also gradually reduced, and the volume of the expansion area of the oil control sheet is reduced, so that the oil outlet is restored to the original state, and the phenomenon that the ultrasonic atomization sheet is insufficient to cause scorching when the temperature of the tobacco tar is at the normal temperature is prevented.

Drawings

FIG. 1 is a sectional structural view of an atomizer according to the present invention.

Fig. 2 is a sectional view a-a of fig. 1.

FIG. 3 is a sectional view of the atomizer according to the present invention showing the oil control plate in a heated state.

Fig. 4 is a three-dimensional structure view of the oil bin housing of the present invention.

FIG. 5 is a schematic structural diagram of an oil control sheet according to a first embodiment of the present invention.

Fig. 6 is a front cross-sectional structural view of an atomizing core of the present invention.

Fig. 7 is an exploded view of the atomizing core of the present invention.

Fig. 8 is a three-dimensional structure view of the silica gel cover of the present invention.

FIG. 9 is a schematic structural diagram of a second embodiment of an oil control sheet according to the present invention.

FIG. 10 is a cross-sectional structural view of a second embodiment of an atomizer equipped with an oil control disk according to the present invention.

In the figure: 1. a suction nozzle device; 11. a suction nozzle; 12. an air inlet;

2. a gland;

3. an oil sump device; 31. an oil sump inner shell; 32. an oil sump housing; 33. an oil control sheet; 34. a deformation void; 321. an oil outlet; 322. fixing grooves; 3221. a first mounting portion; 331. an expansion zone; 332. a temperature sensitive region; 3321. a protrusion;

4. an atomizing core; 41. atomizing cotton; 42. a silica gel sleeve; 43. an ultrasonic atomization sheet; 44. an atomizing base; 45. an outer electrode; 46. a resistance plate; 47. engaging the electrodes; 48. an insulating ring; 49. an elastic electrode; 421. an atomized cotton fixing groove; 422. a first empty slot; 423. a second empty slot;

5. a bottom cover;

6. turning a handle; 61. an air outlet channel; 62. an air intake passage;

7. and a cotton pressing spring.

Detailed Description

The invention is further described below with reference to specific preferred embodiments, without thereby limiting the scope of protection of the invention.

For convenience of description, the description of the relative position of the components (e.g., up, down, left, right, etc.) is described with reference to the layout direction of the drawings, and does not limit the structure of the patent.

Example 1:

as shown in fig. 1 to 5, an embodiment of the electronic cigarette atomizer of the present invention includes a suction nozzle unit 1, an oil sump unit 3, and an atomizing core 4. The suction nozzle device 1 is provided with a suction nozzle 11 and an air intake port 12. The oil bin device 3 is formed by mutually clamping an oil bin inner shell 31 and an oil bin outer shell 32, and an oil outlet 321 is arranged at the bottom of the oil bin outer shell 32. The upper surface of the oil bin device 3 is covered with a gland 2, and the lower surface of the oil bin device 3 is sleeved with a bottom cover 5. The atomizing core 4 is inserted into the oil bin housing 32 through the bottom cover 5, and the middle part of the lower surface of the oil bin housing 32 is abutted against the upper surface of the atomizing core 4.

The upper surface of atomizing core 4 sets up atomizing cotton 41, and the oil-out 321 of oil bin device 3 corresponds the tip setting of atomizing cotton 41. The bottom of the oil bin shell 32 is provided with a fixing groove 322 and a deformation gap 34, the fixing groove 322 is located on one side of the oil outlet 321, the deformation gap 34 is located below the oil outlet 321, the fixing groove 322 is communicated with the deformation gap 34, at normal temperature, the oil control sheet 33 is embedded or fixed in the fixing groove 322 in an extrusion mode and does not shield the oil outlet 321, when a user smokes, the oil control sheet 33 is in contact with tobacco tar and continuously absorbs heat along with the rise of the temperature of the tobacco tar, and then the oil control sheet 33 expands towards the deformation gap 34, so that one part of the oil outlet 321 is gradually shielded by the oil control sheet 33, and the amount of the tobacco tar flowing out of the oil outlet 321 is.

As shown in fig. 5, the oil control sheet 33 is composed of an expansion area 331 and a temperature sensitive area 332, the temperature sensitive area 332 is disposed inside the expansion area 331, and a portion of the temperature sensitive area 332 extends to the surface of the expansion area 332 and extends to the side near the oil outlet 321 to contact with the soot. The material of the temperature sensitive area is sensitive to temperature, and can adopt metal materials, diamond, ceramics and other good heat conduction materials, and the material of the expansion area is a material which expands with heat and contracts with cold, and can adopt one or a mixture of zinc alloy, magnesium alloy, plastic and the like.

As shown in fig. 6-8, the atomizing core 4 includes an atomizing cotton 41, a silicone sleeve 42, an ultrasonic atomizing sheet 43, an atomizing base 44, an outer electrode 45, a resistor plate 46, a connecting electrode 47, an insulating ring 48, and an inner electrode 49. The upper surface of the silica gel sleeve 42 is symmetrically provided with an atomized cotton fixing groove 421, a first empty groove 422 and a second empty groove 423 from outside to inside, the first empty groove 422 is communicated with the second empty groove 423, the first empty groove 422 is arranged right opposite to an oil outlet 321 of the oil bin device 3, an air outlet opening of the first empty groove 422 is larger than the oil outlet 321, preferably twice the caliber of the oil outlet 321, so that the first empty groove 422 is prevented from being blocked by tobacco tar to influence the gas replacement of the oil outlet 321; the air inlet opening of the first empty groove 422 is smaller than the air inlet opening of the second empty groove 423, so that the first empty groove 422 is not easy to be blocked by the tobacco tar. After the two ends of the atomization cotton 41 are covered on the first empty groove 422 and the second empty groove 423, the tail end of the atomization cotton 41 is inserted into the atomization cotton fixing groove 421, the middle part of the atomization cotton 41 is concave under the action of the cotton pressing spring 7, and contacts with the ultrasonic atomization sheet 43 horizontally placed in the atomization seat 44 to form an atomization area, and meanwhile, the atomization cotton 41 corresponding to the first empty groove 422 and the second empty groove 423 is in a suspended state. An atomization cavity is formed between the upper surface of the ultrasonic atomization sheet 43 and the lower surface of the oil bin shell 32, an air inlet opening of the second empty groove 423 is communicated with the atomization cavity, and the first empty groove 422 is just opposite to the oil outlet 321 of the oil bin device 3, so that gas in the atomization cavity can enter the oil bin through the second empty groove 423, the first empty groove 422 and the oil outlet 321 to perform tobacco tar and gas replacement, and the flow rate of the tobacco tar is ensured. After the two ends of the atomization cotton 41 cover the first empty groove 422 and the second empty groove 423, the two sides of the atomization cotton 41 are abutted to the end face of the oil outlet of the oil bin housing 32 by the end face of the top of the silica gel sleeve 42, the abutting part of the two sides of the atomization cotton 41 cannot guide the tobacco tar due to being pressed too tightly, so that the guide tobacco tar part of the atomization cotton 41 is only the position corresponding to the first empty groove 422 and the second empty groove 423, thereby controlling the flow of the tobacco tar, avoiding the phenomenon that the ultrasonic atomization sheet 43 is soaked by the tobacco tar, and meanwhile preventing the atomization cotton 41 from falling into the first empty groove 422 or the second empty groove 423 to influence the slow replacement speed of the tobacco tar and the gas in the oil bin to cause the slow oil guide speed, thereby causing the dry burning phenomenon of the ultrasonic atomization sheet 43. The upper portion of outer electrode 45 is connected with silica gel cover 42, and outer electrode 45 connects the upper surface electrode of ultrasonic atomization piece 43, the lower surface electrode of ultrasonic atomization piece 43 is connected with inner electrode 49, outer electrode 45 connects linking electrode 47, set up resistance board 46 between linking electrode 47 and inner electrode 49, be provided with the resistance on the resistance board 46, make and form a closed circuit between the upper and lower surface electrode of ultrasonic atomizer 43 and the resistance, like this, can consume the energy that ultrasonic atomization piece 43 self-stored after the circular telegram through the resistance, thereby make ultrasonic atomization piece 43 can normally work after circular telegram once more, avoid ultrasonic atomization piece 43 to receive very big voltage impact, prolong its life-span.

As shown in fig. 1-3, a rotary handle 6 is disposed in the middle of the oil bin device 3, the suction nozzle device 1 is sleeved on the top end of the rotary handle 6, and the suction nozzle device 1 can rotate around the rotary handle 6, so that an oil inlet of the oil bin device 3 can be closed or opened. The middle part of the rotary handle 6 is provided with an air outlet channel 61 communicated with the suction nozzle 11 and the atomizing cavity, and the periphery of the rotary handle 6 is provided with an air inlet channel 62 communicated with the air inlet 12 and the atomizing cavity.

As shown in fig. 9-10, the matching between the oil control sheet 33 and the oil bin casing 32 can also adopt a second form, namely, the middle part of the oil control sheet 33 is protruded, the temperature sensitive area 332 extends to the upper surface of the protrusion 3321, the middle part of the fixing groove 322 is provided with a first mounting part 3221 communicated with the oil bin, the protrusion of the oil control sheet 33 is arranged in the first mounting part 3221, and the oil outlet 321 directly serves as the deformation gap 34.

When the invention is used, a smoker sucks from the suction nozzle 11, so that external air enters from the air inlet 12 and enters the atomizing cavity through the air inlet channel 62, tobacco tar flows onto the atomizing cotton 41 from the oil outlet 321 of the oil bin and flows to the middle part of the atomizing cotton contacted with the ultrasonic atomizing sheet 43 through the atomizing cotton 41 corresponding to the first and second empty grooves, and the tobacco tar is ultrasonically atomized by the ultrasonic atomizing sheet 43 and then flows to the suction nozzle 11 through the air outlet channel 61 to be smoked by the smoker. After the work of ultrasonic atomization piece, when the user smokes about ten mouthful in succession, the heat that the ultrasonic atomization piece released is absorbed by the tobacco tar, make the tobacco tar temperature rise, the velocity of flow of tobacco tar accelerates, make the temperature of accuse oil piece rise along with the rise of tobacco tar temperature simultaneously, and in accuse oil piece absorbed heat intensification process, its self molecular activity reinforcing, make the volume expansion of accuse oil piece, plug up the oil-out gradually, and then make the tobacco tar volume of following oil-out discharge reduce, thereby make the tobacco tar volume that flows to the ultrasonic atomization piece keep invariable basically, effectively avoid the phenomenon that the ultrasonic atomization piece that the tobacco tar mobility reinforcing and then the appearance that leads to because the tobacco tar temperature risees is soaked by the tobacco tar, guarantee that the tobacco tar on the ultrasonic atomization piece is atomized completely, prevent that the user from smoking the tobacco tar granule when smoking in succession. When the ultrasonic atomization is stopped, the temperature of the tobacco tar is correspondingly reduced, the temperature of the oil control sheet is reduced, the volume of the oil control sheet is reduced, the oil outlet is enlarged, the oil outlet returns to the original state, when smoking is started again, the tobacco tar at the oil outlet can be sufficiently supplied, and the phenomenon that the ultrasonic atomization sheet is dry-burned is avoided.

The above description is only for the preferred embodiment of the present application and should not be taken as limiting the present application in any way, and although the present application has been disclosed in the preferred embodiment, it is not intended to limit the present application, and those skilled in the art should understand that they can make various changes and modifications within the technical scope of the present application without departing from the scope of the present application, and therefore all the changes and modifications can be made within the technical scope of the present application.

Claims (10)

1. The utility model provides an electron smog spinning disk atomiser, includes the oil storehouse device that has the oil-out, sets up the atomizing core below the oil storehouse device, and the upper surface of atomizing core sets up the atomizing cotton, and the oil-out corresponds the cotton tip setting of atomizing, its characterized in that, the oil storehouse device with set up between the atomizing cotton and preheat expanded accuse oil film and corresponding deformation space, the deformation space is located below the oil-out, make accuse oil film and tobacco tar contact, and under the normal atmospheric temperature, accuse oil film is located oil-out one side, and after the heat absorption, accuse oil film is towards deformation space department inflation, makes a part of oil-out sheltered from by accuse oil film.

2. The electronic cigarette atomizer of claim 1, wherein a fixing groove for installing the oil control sheet and the deformation gap are formed in the bottom of the oil bin device, the fixing groove is communicated with the deformation gap, and the oil control sheet is embedded or fixed in the fixing groove in an extruding mode at normal temperature.

3. An electronic smoke atomizer according to claim 2, wherein said oil control plate is comprised of an expansion region and a temperature sensitive region, the temperature sensitive region being disposed within the expansion region and a portion of the temperature sensitive region extending to a surface of the expansion region for contact with the smoke.

4. The electronic aerosolizer of claim 3, wherein an upper surface of the oil control flap is flush, and the temperature sensitive region extends to the upper surface of the oil control flap and to a side proximate the oil outlet.

5. The electronic cigarette atomizer of claim 3, wherein the middle of the oil control plate is raised, the temperature sensitive area extends to the upper surface of the raised portion, the middle of the fixing groove is provided with a first mounting portion communicated with the oil bin, the raised portion of the oil control plate is arranged in the first mounting portion, and the oil outlet is directly used as the deformation gap.

6. The electronic cigarette atomizer of claim 1, wherein the atomizing core comprises a silica gel sleeve, atomizing cotton and an ultrasonic atomizing sheet, the silica gel sleeve has a symmetrical arrangement on the upper surface thereof against a first empty slot and a second empty slot of the oil outlet, the first empty slot is communicated with the second empty slot, the second empty slot is communicated with the atomizing cavity between the oil bin device and the ultrasonic atomizing sheet, an air inlet opening of the first empty slot is smaller than an air inlet opening of the second empty slot, an air outlet opening of the first empty slot is larger than the oil outlet, two ends of the atomizing cotton cover the first empty slot and the second empty slot, and the middle part of the atomizing cotton is recessed to contact with the ultrasonic atomizing sheet to form an atomizing area, so that the atomizing cotton corresponding to the first empty slot and the second empty slot is in a suspended state.

7. The electronic cigarette atomizer of claim 6, wherein atomization cotton fixing grooves are symmetrically formed in the upper surface of the silica gel sleeve, and two ends of the atomization cotton respectively cover the first empty groove and the second empty groove and are inserted into the atomization cotton fixing grooves.

8. The electronic cigarette atomizer of claim 6, wherein said ultrasonic atomization plate comprises an upper surface electrode and a lower surface electrode, said upper surface electrode is connected to an outer electrode, said lower surface electrode is connected to an inner electrode, and a resistance plate is disposed between said inner and outer electrodes.

9. An electronic smoke atomizer according to claim 6, wherein said first recess is located outside said second recess.

10. A method of regulating the amount of flowing smoke of an electronic smoke atomizer according to any of claims 1 to 9, comprising:

a. the atomizer is started to work, a user continuously sucks 5-10 mouths of smoke, and heat released by the ultrasonic atomization sheet is absorbed by tobacco tar;

b. the temperature of the tobacco tar rises, and meanwhile, the oil control sheet heats through contact with the tobacco tar, so that the temperature of the oil control sheet is consistent with the temperature of the tobacco tar finally;

c. when the temperature of the oil control sheet rises along with the tobacco tar, the volume of an expansion area of the oil control sheet is increased to shield one part of the oil outlet, so that the amount of the tobacco tar flowing out of the oil outlet is reduced;

d. when the cigarette is not smoked, the temperature of the tobacco tar is gradually reduced, the temperature of the oil control sheet is also gradually reduced, and the volume of the expansion area of the oil control sheet is reduced, so that the oil outlet is recovered to the original state.

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