Improved electronic cigarette

Abstract

The invention relates to the technical field of electronic cigarettes, in particular to an improved electronic cigarette. The improved electronic cigarette comprises a shell, and an oil storage unit, an atomization unit and a control unit which are arranged in the shell, a suction nozzle is arranged on the shell; the oil storage unit comprises an oil tank, a first sealing cover and a second sealing cover; the first sealing cover covers the top of the oil tank; the second sealing cover covers the bottom of the oil tank; a first sealing ring is arranged in a first sealing groove in the first sealing cover; the suction nozzle is inserted into the first sealing ring; the at least two atomization units are arranged in the oil tank, and the atomization units atomize the heated tobacco tar in the oil tank; the control unit comprises a control circuit board, and a battery and a wiring circuit board which are connected to the control circuit board; the wiring circuit board is connected with the atomization unit; and a connector and a control switch which are connected to the control circuit board are exposed in the shell. Two or more independent control atomization units are arranged in a single oil tank, the smoke amount can be adjusted, temperature control is more accurate, and response is more timely.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic cigarettes, and in particular to an improved electronic cigarette. Background Art

[0002] Electronic cigarettes are a type of non-combustion electronic cigarette. Their effects are similar to those of ordinary cigarettes. They can refresh the mind, satisfy smoking addiction, and make smokers feel happy and relaxed.

[0003] To achieve variable vapor volume, some e-cigarettes on the market typically use multiple heating coils on the same atomizer core. A single heating coil produces a small vapor volume, while multiple heating coils produce a large vapor volume. When multiple heating coils heat the same atomizer core, they need to work together, making temperature control difficult and prone to overheating or untimely coordination.

[0004] For example, Chinese patent application number CN202321157953.X discloses a dual-heating wire electronic cigarette, which specifically discloses that "the heating module is mainly used to heat the oil in the oil-storage cotton to generate smoke. It includes two heating wires that can work independently and a metal heating tube arranged in the oil smoke hole. The two heating wires are sleeved in the metal heating tube. The side wall of the metal heating tube is provided with a clamping block for clamping the two heating wires. The through holes can allow oil and smoke to freely enter and exit the metal heating tube. The two heating wires can be clamped by the clamping block, and the metal heating tube can be fixed to prevent the metal heating tube from moving in the oil smoke hole." This design is that the two heating wires are sleeved in the metal heating tube. The heating wires need to work together, the temperature is difficult to control, and it is easy to overheat or fail to cooperate in time. Summary of the Invention

[0005] In view of this, the present invention addresses the deficiencies in the prior art, and its main purpose is to provide an improved electronic cigarette, which has multiple groups of atomization units arranged in one oil storage unit, with good temperature control and simple coordination, thereby overcoming the shortcomings of the prior art.

[0006] To achieve the above object, the present invention adopts the following technical solutions: The present application provides an improved electronic cigarette, comprising a shell, an oil storage unit arranged in the shell, an atomization unit, and a control unit; a suction nozzle is arranged on the shell; the oil storage unit comprises an oil tank, a first sealing cover, and a second sealing cover; the oil tank is filled with tobacco oil; the first sealing cover is covered on the top of the oil tank; the second sealing cover is covered on the bottom of the oil tank; a first sealing ring is provided in a first sealing groove on the first sealing cover; the suction nozzle is inserted into the first sealing ring; at least two atomization units are arranged in the oil tank, and the atomization units atomize the heated tobacco oil in the oil tank; the control unit comprises a control circuit board, and a battery and a wiring circuit board connected to the control circuit board; the wiring circuit board is connected to the atomization unit; the connector and control switch connected to the control circuit board are exposed in the shell.

[0007] Preferably, the shell includes an upper shell, a middle shell, a lower shell, and a decorative panel; the ends of the upper shell and the lower shell are inserted into the middle shell and snapped together with the middle shell; a window is opened on the lower shell, and the display screen connected to the control circuit board is exposed at the window; the decorative panel covers the middle shell and covers the snapping part between the upper shell and the lower shell; the display screen can be displayed through the decorative panel; the suction nozzle is formed on the upper shell, and the suction nozzle extends to the interior of the upper shell to form a first connector; the first connector is inserted into the first sealing ring.

[0008] Preferably, the first sealing cover includes a first-stage sealing portion and a second-stage sealing portion; the first-stage sealing portion is embedded in a second sealing groove formed inside the upper shell; the second-stage sealing portion is embedded in the top of the oil tank; The second sealing cover includes a third-stage sealing portion and a fourth-stage sealing portion, wherein the third-stage sealing portion is embedded in the bottom of the oil tank; and the fourth-stage sealing portion is embedded in the lower shell; The atomizing unit is arranged on the second-stage sealing portion and inserted into the oil tank.

[0009] Preferably, a first mounting groove is provided inside the fourth-level sealing portion; a wiring circuit board and an airflow sensor are provided in the first mounting groove, and a flange in the first mounting groove supports the wiring circuit board; and the wiring circuit board supports the airflow sensor.

[0010] Preferably, a heating element is further provided in the first installation groove; the heating element is connected to the wiring circuit board and can heat the second sealing cover.

[0011] Preferably, the wiring circuit board is provided with a conductive spring pin, and the heating element and the atomizing unit are both provided with a conductive terminal; the conductive spring pin is pressed on the conductive terminal.

[0012] Preferably, the atomization unit includes a heating core, a heat-conducting core, and an atomizing core; the heating core is arranged in the heat-conducting core, the atomizing core is arranged in the heat-conducting core, and a through hole is opened on the heat-conducting core facing the atomizing core.

[0013] Preferably, a bayonet is provided on the heat-conducting core; the middle portion of the atomizing core is annular inside the heat-conducting core; and the ends of the atomizing core are brought together and extended from the bayonet.

[0014] Preferably, the transverse cross-section of the heating core is gear-shaped, and the tobacco oil can flow along the inner wall of the heat-conducting core into the gap between the heating core and the heat-conducting core.

[0015] Preferably, the internal air passage of the suction nozzle gradually narrows from the outer end to the inner end; a filter tip is detachably embedded in the air passage; the filter tip comprises a coarse fiber filter layer, a medium fiber filter layer, an activated carbon layer, and a fine fiber filter layer; the smoke passes through the coarse fiber filter layer, the medium fiber filter layer, the activated carbon layer, and the fine fiber filter layer in sequence.

[0016] Compared with the prior art, the present invention has obvious advantages and beneficial effects. Specifically, it can be seen from the above technical solution that two or more atomization units are set in an oil tank; when the smoke volume is small, a single atomization unit works, and when the smoke volume is large, multiple atomization units work simultaneously. Since each atomization unit is independent, the temperature control is better, and there is no problem of overheating and untimely response.

[0017] The smoke after atomization comes out from the mouthpiece. The first sealing ring can prevent the smoke after atomization from leaking, and has good sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is an overall schematic diagram of an embodiment of the present invention.

[0019] Figure 2 It is an exploded schematic diagram of an embodiment of the present invention.

[0020] Figure 3 It is a schematic top view of an embodiment of the present invention.

[0021] Figure 4 This is an embodiment of the present invention Figure 3 Schematic diagram of the C_C cross-section.

[0022] Figure 5 This is an embodiment of the present invention Figure 3 Schematic diagram of the D_D cross-section.

[0023] Figure 6 Schematic diagram of an atomization unit according to an embodiment of the present invention.

[0024] Figure 7 It is a cross-sectional schematic diagram of an atomization unit according to an embodiment of the present invention.

[0025] Figure 8 It is an exploded schematic diagram of an embodiment of the present invention.

[0026] Figure 9It is a partial structural diagram of an embodiment of the present invention.

[0027] Description of the accompanying drawings: 10. Housing; 11. Upper housing; 12. First flange; 13. First connector; 14. Middle housing; 15. Window; 16. Lower housing; 17. Second flange; 18. Fastening portion; 19. Decorative panel; 110. Suction nozzle; 111. Filter tip; 112. Coarse fiber filter layer; 113. Medium fiber filter layer; 114. Activated carbon layer; 115. Fine fiber filter layer; 116. Second sealing groove; 20. Oil storage unit; 21. First sealing ring; 22. Oil tank; 23 , e-liquid; 210, first sealing cover; 211, first-level sealing part; 212, second-level sealing part; 213, second sealing cover; 214, third-level sealing part; 215, fourth-level sealing part; 216, first mounting groove; 217, flange; 218, heating element; 219, first sealing groove; 30, atomization unit; 31, heating core; 32, thermal conductive core; 33, through hole; 34, bayonet; 35, atomization core; 40, control unit; 41, control circuit board; 42, battery; 43, wiring circuit board; 44, connector; 45, airflow sensor; 46, display screen; 47, control switch. DETAILED DESCRIPTION

[0028] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the invention, the specific implementation methods, structures, features and effects of the present invention are described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0029] Please refer to Figures 1 to 6 As shown, it shows the specific structure of a preferred embodiment of the present invention, which is an improved electronic cigarette.

[0030] The oil tank 22 is equipped with two or more atomizing units 30, each controlled by a control switch. Users can choose to activate one or more atomizing units 30 based on their needs. Since each atomizing unit 30 is independent, there is no mutual interference, resulting in a more timely response and guaranteed heating temperature and flue gas production.

[0031] The present application provides an improved electronic cigarette, comprising a shell 10, an oil storage unit 20 arranged in the shell 10, an atomization unit 30, and a control unit 40; a suction nozzle 110 is arranged on the shell 10; the oil storage unit 20 comprises an oil tank 22, a first sealing cover 210, and a second sealing cover 213; the oil tank 22 is filled with tobacco oil 23; the first sealing cover 210 covers the top of the oil tank 22; the second sealing cover 213 covers the bottom of the oil tank 22; a first sealing ring 21 is arranged in the first sealing groove 219 on the first sealing cover 210; the suction nozzle 110 is inserted into the first sealing ring 21; at least two atomization units 30 are arranged in the oil tank 22, and the atomization units 30 atomize the heated tobacco oil 23 in the oil tank 22; the control unit 40 comprises a control circuit board 41, and a battery 42 and a wiring circuit board 43 connected to the control circuit board 41; the wiring circuit board 43 is connected to the atomization unit 30; the connector 44 and the control switch 47 connected to the control circuit board 41 are exposed on the shell 10. The housing 10 is made of plastic. The oil storage unit 20 stores the e-liquid 23. The atomizer unit 30 atomizes the e-liquid 23. The control unit 40 provides power, charging, and controls the operation of the atomizer unit. The control circuit board 41 provides power, including control, power, and charging. Specifically, the control circuit board 41 may be a PY32C642F15U6TR, FP6277, or similar. The wiring circuit board 43 provides wiring, the battery 42 provides power, and the connector 44 connects to an external charger. The first and second sealing covers 210 and 213 cover the oil tank 22, preventing oil leakage and ensuring a good seal. The nozzle 110 is inserted into the first sealing ring 21, ensuring that smoke exiting the oil tank 22 can be smoothly drawn out of the nozzle 110 without leakage. In this embodiment, there is only one oil tank 22; two or more atomizer units 30 are located within the oil tank 22. A single atomizer unit 30 can operate, or multiple atomizer units 30 can operate simultaneously. Each atomizing unit 30 can be individually controlled by the control circuit board 41. The user can control the number of atomizing units 30 in operation by controlling the switch 47. The control switch 47 preferably adopts a sliding structure, and the control switch 47 can be used to select one, two, or more atomizing modules to operate. Because each atomizing unit 30 is controlled independently, there is no problem of mutual influence between them, the response is more timely, and the heating temperature is better controlled.

[0032] Preferably, the housing 10 includes an upper shell 11, a middle shell 14, a lower shell 16, and a decorative panel 19. The ends of the upper shell 11 and the lower shell 16 are inserted into the middle shell 14 and snap-fitted together. The lower shell 16 is provided with a window 15, through which the display screen 46 connected to the control circuit board 41 is exposed. The decorative panel 19 covers the middle shell 14 and obscures the snap-fitting portion 18 between the upper shell 11 and the lower shell 16. The display screen 46 can be displayed through the decorative panel 19. The suction nozzle 110 is formed on the upper shell 11 and extends toward the interior of the upper shell 11 to form a first connector 13. The first connector 13 is inserted into the first sealing ring 21. The upper shell 11 is provided with a first flange 12, and the lower shell 16 is provided with a second flange 17. When the ends of the upper shell 11 and the lower shell 16 are inserted into the middle shell 14, the first flange 12 and the second flange 17 can effectively limit the position, making assembly more convenient. The upper shell 11, the middle shell 14, and the lower shell 16 are assembled together by plugging and snapping, and the snapping position is covered by the decorative plate 19. That is, when the outer shell needs to be disassembled, it is only necessary to remove the decorative plate 19 and press the snapping position to easily disassemble the shell 10. This design has a simple structure and is easy to assemble and disassemble. The display screen 46 can be displayed through the decorative plate 19. This design makes it convenient for users to observe the status of the electronic cigarette. The decorative plate 19 can be selected according to user needs in different textures, shapes, and colors, and can decorate the electronic cigarette to make it more beautiful. The decorative plate 19 can be set on the shell 10 by pasting or magnetic attraction, which is very convenient for disassembly and assembly. The first connector 13 has a certain length. It is inserted into the first sealing ring 21, which can achieve a good sealing effect and prevent air leakage.

[0033] Preferably, the first sealing cover 210 includes a first-level sealing portion 211 and a second-level sealing portion 212; the first-level sealing portion 211 is embedded in the second sealing groove 116 formed inside the upper shell 11; the second-level sealing portion 212 is embedded in the top of the oil tank 22. The first sealing cover 210 and the second sealing cover 213 are made of food-grade silicone material and have good elasticity. The first-level sealing portion 211 is embedded in the second sealing groove 116, which can play a role of connection and secondary sealing, thereby enhancing the connection strength between the upper shell 11 and the oil storage unit 20 and facilitating assembly. At the same time, it can also play a role of secondary sealing to prevent air leakage between the suction nozzle 110 and the oil storage unit 20. The second-level sealing portion 212 is embedded in the top of the oil tank 22, which can prevent oil leakage from the top of the oil tank 22 and ensure its sealing.

[0034] The second sealing cover 213 includes a third-stage sealing portion 214 and a fourth-stage sealing portion 215. The third-stage sealing portion 214 is embedded in the bottom of the oil tank 22, while the fourth-stage sealing portion 215 is embedded in the lower shell 16. The third-stage sealing portion 214 is embedded in the bottom of the oil tank 22 to prevent oil leakage from the bottom of the oil tank 22 and ensure its sealing. The fourth-stage sealing portion 215 is embedded in the lower shell 16, which improves the connection between the lower shell 16 and the middle shell 14 and seals the control unit 40 within the lower shell 16, resulting in a more compact layout and improved sealing.

[0035] The atomizer unit 30 is mounted on the second-stage sealing portion 212 and inserted into the oil tank 22. The atomizer unit 30 can be mounted on the second-stage sealing portion 212 using injection molding. The atomizer unit 30 and the oil storage unit 20 collaborate to achieve a better seal and prevent oil leakage through material innovation, structural optimization, sealing technology, and intelligent control. For example, the use of microporous ceramic substrates, composite cotton core technology, optimized atomizer core 35 and oil tank structure, anti-condensation airway design, high-precision sealing technology, and chip-level leak prevention solutions ensure that oil leakage is prevented.

[0036] Preferably, a first mounting slot 216 is provided within the fourth-stage sealing portion 215. The wiring circuit board 43 and the airflow sensor 45 are disposed within the first mounting slot 216. A flange 217 within the first mounting slot 216 supports the wiring circuit board 43, which in turn supports the airflow sensor 45. A heating element 218 is also provided within the first mounting slot 216. This heating element 218 is connected to the wiring circuit board 43 and is capable of heating the second sealing cover 213. The heating element 218 may be a ceramic heating stone or a metal heating plate. The heating element 218 heats the second sealing cover 213, preheating the oil 23 in the oil tank 22 to a certain preheated temperature. This design facilitates the subsequent atomization module to rapidly atomize the oil 23, thereby increasing the speed of smoke output. The airflow sensor 45 senses airflow. When inhalation is applied through the mouthpiece 110, the airflow sensor 45 transmits a signal to the control circuit board 41, which controls the operation of the atomization module. The flange 217 within the first mounting slot 216 supports the wiring circuit board 43, which in turn supports the airflow sensor 45. This design makes the layout within the first mounting slot 216 more compact and the mounting structure very simple. During assembly, workers only need to press the wiring circuit board 43, which is very convenient.

[0037] Preferably, the wiring circuit board 43 is provided with conductive spring pins, and the heating element 218 and the atomizing unit 30 are both provided with conductive terminals; the conductive spring pins press against the conductive terminals. When the wiring circuit board 43 is installed in the first mounting slot 216, the conductive spring pins press against the conductive terminals. This wiring method is very simple and convenient, helping to improve the efficiency of workers' assembly.

[0038] Preferably, the atomizer unit 30 includes a heating core 31, a heat-conducting core 32, and an atomizer core 35. The heating core 31 is disposed within the heat-conducting core 32, and the atomizer core 35 is disposed within the heat-conducting core 32. A through-hole 33 is provided in the heat-conducting core 32 opposite the atomizer core 35. The heating core 31 receives power from a wiring circuit board 43. Heat generated by the heating core 31, further transferred through the heat by the heat-conducting core 32, causes the e-liquid 23 absorbed by the atomizer core 35 to be atomized by the heat-conducting core 32. The heating core 31 can be a ceramic heating core 31 or a metal heating core 31. The heat-conducting core 32 can be a metal heat-conducting core 32. The atomizer core 35 can be a cotton core or a ceramic core. This design allows for rapid atomization of the e-liquid 23. When a user inhales through the mouthpiece 110, the airflow sensor senses the airflow, and the control circuit board 41 then supplies power to the heating core 31 via the wiring circuit board 43. The heating core 31 transfers heat to the heat-conducting core 32, which then atomizes the e-liquid 23 deposited on the atomizer core 35. The air flows through the heat-conducting core 32 , and the smoke is sucked out from the suction nozzle 110 .

[0039] Preferably, the heat-conducting core 32 is provided with a bayonet 34; the middle portion of the atomizer core 35 is annular inside the heat-conducting core 32; the ends of the atomizer core 35 are brought together and then extend from the bayonet 34. The smoke liquid 23 penetrates into the atomizer core 35 through the through-holes 33 on the heat-conducting core 32, and the smoke liquid 23 is absorbed by the atomizer core 35. The heat-conducting core 32 heats the atomizer core 35, and the smoke liquid 23 is quickly atomized. The ends of the atomizer core 35 are brought together and then extend from the bayonet 34. This design helps to position and fix the atomizer core 35. At the same time, the atomizer core 35 can also absorb more smoke liquid 23. When the atomizer core 35 in the ring is atomized, the smoke liquid 23 in other parts can be quickly replenished, which also facilitates the inhalation of smoke.

[0040] Preferably, the transverse cross-section of the heating core 31 is gear-shaped, allowing the smoke liquid 23 to flow along the inner wall of the heat-conducting core 32 into the gap between the heating core 31 and the heat-conducting core 32. This design allows some of the smoke liquid 23 to flow into the gap between the heating core 31 and the heat-conducting core 32. The heat from the heating core 31 directly atomizes the smoke liquid 23 in the gap, quickly generating smoke. Furthermore, the gear shape facilitates assembly, making it easier to press-fit the heating core 31 into the heat-conducting core 32.

[0041] Preferably, the internal air passage of the suction nozzle 110 gradually narrows from the outer end to the inner end; a filter 111 is detachably embedded in the air passage; the filter 111 includes a coarse fiber filter layer 112, a medium fiber filter layer 113, an activated carbon layer 114, and a fine fiber filter layer 115; the smoke passes through the coarse fiber filter layer 112, the medium fiber filter layer 113, the activated carbon layer 114, and the fine fiber filter layer 115 in sequence. The filter 111 is adapted to the structure inside the air passage, and the structure of the air passage can prevent the filter element from falling into the interior of the suction nozzle 110. The filter 111 can be assembled inside the suction nozzle 110 by press-fitting, and when replacing the filter 111, it is only necessary to pull out the filter 111. Of course, the internal air passage opening of the suction nozzle 110 can also be enlarged to form a groove shape, which can also prevent the filter element from falling into the interior of the suction nozzle 110. The filter 111 features a multi-layered filtration structure: a coarse fiber filter layer 112, a medium fiber filter layer 113, and a fine fiber filter layer 115. These layers filter particles of varying sizes, enhancing health. The activated carbon layer 114 absorbs harmful substances, such as volatile organic compounds (VOCs), such as aldehydes (formaldehyde and acetaldehyde), certain aromatic hydrocarbons, some odor molecules (e.g., unpleasant odors and bad breath from combustion), and small amounts of nicotine or tar, enhancing safety. The coarse fiber filter layer 112, medium fiber filter layer 113, and fine fiber filter layer 115 can be constructed of polypropylene or cellulose acetate. Different layers contain fibers of varying diameters. The filter layers intercept particulate matter in aerosols through their micropores, reducing the inhalation of large, harmful particles.

[0042] In summary, the key design feature of the present invention lies in the installation of two or more atomizing units 30 within a single oil tank 22. Users can select a single atomizing unit 30 or multiple atomizing units 30 to generate a low or high volume of smoke, respectively. Because each atomizing unit 30 is independent, temperature control is more precise, response is immediate, and atomization is rapid.

[0043] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as above in terms of a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can, without departing from the scope of the technical solution of the present invention, make some changes or modifications to equivalent embodiments using the technical contents disclosed above. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. An improved electronic cigarette, characterized by: It includes a housing, an oil storage unit, an atomization unit, and a control unit arranged in the housing; A suction nozzle is provided on the shell; The oil storage unit includes an oil tank, a first sealing cover, and a second sealing cover; the oil tank is filled with tobacco oil; the first sealing cover is closed on the top of the oil tank; the second sealing cover is closed on the bottom of the oil tank; a first sealing ring is provided in a first sealing groove on the first sealing cover; the nozzle is inserted into the first sealing ring; At least two atomizing units are arranged in the oil tank, and the atomizing units atomize the heated tobacco oil in the oil tank; The control unit includes a control circuit board, a battery connected to the control circuit board, and a wiring circuit board; the wiring circuit board is connected to the atomization unit; and the connector and control switch connected to the control circuit board are exposed in the housing.

2. The improved electronic cigarette according to claim 1, characterized in that: The shell includes an upper shell, a middle shell, a lower shell, and a decorative plate; the ends of the upper shell and the lower shell are inserted into the middle shell and buckled together with the middle shell; a window is opened on the lower shell, and the display screen connected to the control circuit board is exposed at the window; the decorative plate covers the middle shell and hides the buckled part between the upper shell and the lower shell; the display screen can be displayed through the decorative plate; the suction nozzle is formed on the upper shell, and the suction nozzle extends to the interior of the upper shell to form a first connector; the first connector is inserted into the first sealing ring.

3. The improved electronic cigarette according to claim 2, characterized in that: The first sealing cover includes a first-stage sealing portion and a second-stage sealing portion; The first-stage sealing part is embedded in the second sealing groove formed inside the upper shell; the second-stage sealing part is embedded in the top of the oil tank; The second sealing cover includes a third-stage sealing portion and a fourth-stage sealing portion, and the third-stage sealing portion is embedded in the bottom of the oil tank; The fourth-stage sealing portion is embedded in the lower shell; The atomizing unit is arranged on the second-stage sealing portion and inserted into the oil tank.

4. The improved electronic cigarette according to claim 3, characterized in that: A first mounting groove is provided inside the fourth-level sealing portion; a wiring circuit board and an airflow sensor are provided in the first mounting groove, a flange in the first mounting groove supports the wiring circuit board; and the wiring circuit board supports the airflow sensor.

5. The improved electronic cigarette according to claim 4, characterized in that: A heating element is also provided in the first installation groove; the heating element is connected to the wiring circuit board and can heat the second sealing cover.

6. The improved electronic cigarette according to claim 5, characterized in that: The wiring circuit board is provided with conductive spring pins, and the heating element and the atomizing unit are both provided with conductive terminals; the conductive spring pins are pressed on the conductive terminals.

7. The improved electronic cigarette according to claim 1, characterized in that: The atomization unit includes a heating core, a heat-conducting core, and an atomization core; the heating core is arranged in the heat-conducting core, the atomization core is arranged in the heat-conducting core, and a through hole is opened on the heat-conducting core facing the atomization core.

8. The improved electronic cigarette according to claim 7, characterized in that: The heat-conducting core is provided with a bayonet; the middle part of the atomizing core is annular inside the heat-conducting core; and the ends of the atomizing core are brought together and extended from the bayonet.

9. An improved electronic cigarette according to claim 7 or 8, characterized in that: The transverse cross section of the heating core is gear-shaped, and the tobacco oil can flow along the inner wall of the heat-conducting core into the gap between the heating core and the heat-conducting core.

10. The improved electronic cigarette according to claim 1, characterized in that: The internal air passage of the suction nozzle gradually narrows from the outer end to the inner end; a filter tip is detachably embedded in the air passage; the filter tip comprises a coarse fiber filter layer, a medium fiber filter layer, an activated carbon layer, and a fine fiber filter layer; smoke passes through the coarse fiber filter layer, the medium fiber filter layer, the activated carbon layer, and the fine fiber filter layer in sequence.

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