Electronic Cigarette Filter

The electronic cigarette filter addresses the limitation of single-functionality by offering three modes of operation, enhancing user versatility through standalone atomization, smoking, and combined smoking and atomization capabilities.

US20260068931A1Pending Publication Date: 2026-03-12DONGGUAN DEKE ELECTRONIC TECH CO LTD
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
Filing Date
2024-10-10
Publication Date
2026-03-12

AI Technical Summary

Technical Problem

Existing electronic cigarette filters have a single function and cannot meet the diverse requirements of users.

Method used

An electronic cigarette filter with a cylinder housing, atomizing assembly, and control assembly that allows for three usage modes: standalone atomization, standalone smoking, and combined atomization and smoking, featuring a button for mode control, a ceramic heating tube, and a silica gel cover for sealing.

Benefits of technology

The filter meets the diverse needs of users by enabling standalone atomization, standalone smoking, and combined smoking and atomization, providing a wide range of usage options.

✦ Generated by Eureka AI based on patent content.

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Abstract

An electronic cigarette filter includes a cylinder housing, a cigarette holder and a bottom cover arranged two ends of the housing, the cigarette holder is provided with an outlet; the electronic cigarette filter further includes an atomizing assembly and a control assembly; the atomizing assembly is arranged in the housing near the cigarette holder and used for atomizing cigarette oil and guiding the atomized cigarette oil to flow towards the outlet of the cigarette holder; the control assembly is arranged in the housing near the bottom cover and used for starting and closing the atomizing assembly; the bottom cover is provided with an inlet, the bottom portion of the cylinder housing may be connected to a cigarette, and smoke generated from the combustion of the cigarette passes through the control assembly and enters the atomizing assembly, and flows to the outlet of the cigarette holder.
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Description

BACKGROUND OF THE INVENTION

[0001] The present disclosure relates to the technical field of electronic cigarettes, more particularly, to an electronic cigarette filter.

[0002] An electronic atomizer is a device simulating traditional smoke. In the electronic atomizer, a battery drives an atomizing core to heat cigarette liquid into vapor, rather than combusting tobacco to generate smoke. Such electronic atomizer is generally composed of a battery, an atomizer, and a cartridge, and does not contain harmful substances such as tar and carbon monoxide. The atomizer heats the stored atomisable substance into mist.

[0003] Chinese Utility Model patent CN113273721A discloses an electronic cigarette filter, which includes a filter main body, a filter tip, and a protective cap. The surface of the lower part of the filter main body is provided with bottom threads, a plug is mounted inside the filter main body, a fruity ball is provided above the plug, and a splicing block is provided at the upper end of the fruity ball. The filter tip is disposed above the filter main body, a smoke outlet is provided in the filter tip and is in communication with the interior of the filter main body through the splicing block. The protective cap is provided on the outer side of the filter tip. The present utility model is provided with the fruity ball matching the inner wall of the plug. The fruity ball can prevent the phenomenon of backflow of mist on the one hand, thereby preventing pollution caused by cigarette oil. On the other hand, the fruity ball can diffuse fruit aroma into the mist, thereby making the mist more pyloric

[0004] Chinese Utility Model patent CN112841719A discloses a filter and an electronic cigarette with the same, the filter includes a core body defining a first chamber and a second chamber sequentially communicated along the direction of the mist propagation. The first chamber is filled with multiple microparticles, each includes a shell and a physiologically active substance located within the shell. The second chamber is provided with a first silicone plug and a second silicone plug along the direction of smoke propagation. The first silicone plug has a first channel for the passage of the microparticles, and the second silicone plug has a second channel for the passage of the microparticles. The second silicone plug is rotatably arranged relative to the first silicone plug and has an initial position and a working position. When in the initial position, the second channel is disconnected from the first channel, and when in the working position, the second channel is communicated to the first channel. The present utility model aims to provide a healthcare electronic cigarette filter.

[0005] The common deficiencies of the above electronic cigarette filters are that they have a single function and can only supply e-liquid atomization to users, which cannot meet the diverse requirements of users.SUMMARY OF THE INVENTION

[0006] The present disclosure provides an electronic cigarette filter, which can overcome the deficiencies that the existing electronic cigarette filter has a single function and cannot meet the diverse requirements of users.

[0007] The technical schemes of the present disclosure are as follows: an electronic cigarette filter includes a cylinder housing, a cigarette holder and a bottom cover arranged at two ends of the cylinder housing, the cigarette holder is provided with an outlet. The electronic cigarette filter further includes an atomizing assembly and a control assembly. The atomizing assembly is arranged in the cylinder housing near the cigarette holder and used for atomizing cigarette oil and guiding the atomized cigarette oil to flow toward the outlet of the cigarette holder. The control assembly is arranged in the cylinder housing near the bottom cover and used for starting and closing the atomizing assembly. The bottom cover is provided with several inlets, the bottom portion of the cylinder housing may be connected to a cigarette, and the smoke generated from the combustion of the cigarette passes through the inlets, the control assembly, enters the atomizing assembly, and flows to the outlet of the cigarette holder under the guidance of the atomizing assembly.

[0008] The control assembly includes a cylinder support, a printed circuit board, a button, and a battery. The cylinder support is disposed in the cylinder housing, two opposite sides of the printed circuit board are fixedly erected on the cylinder support, and the printed circuit board is electrically connected to the atomizing assembly. The battery is disposed in the cylinder housing, mounted between the cylinder support and the bottom cover, and electrically connected to the printed circuit boards to supply power thereto. The button is provided on the cylinder housing, and the button passes through a first though hole of the cylinder support so as to be electrically connected to the printed circuit board; the button is pressed to open or close the connection of the circuit and the printed circuit board, so as to heat and atomize the cigarette oil or stop heating and atomizing the cigarette oil.

[0009] The button is provided with an on-off mode, a preheat mode, and an adjustment mode.

[0010] The atomizing assembly includes an oil cup, a central cylinder, and a ceramic heating tube.

[0011] The oil cup is disposed in the cylinder housing and located between the cigarette holder and the cylinder support. The bottom surface of the oil cup is provided with a second through hole.

[0012] The central cylinder is disposed in the oil cup. The bottom periphery of the central cylinder is connected to the bottom periphery of the oil cup. A cigarette oil is stored between the central cylinder and the oil cup.

[0013] The ceramic heating tube is disposed in the central cylinder and hermetically attached thereto. The central cylinder is provided with an oil hole so that cigarette oil in the oil cup can permeate through the oil hole and distribute on the ceramic heating tube.

[0014] The bottom surface of the oil cup is provided with a boss around the second through hole, the boss is used for placing the ceramic heating tube, and the pins of the ceramic heating tube penetrate through the second through hole to connect to the printed circuit board.

[0015] The top of the oil cup is further provided with a silica gel cover, and the silica gel cover seals a gap between the top of the oil cup and the top of the central cylinder. The inner wall of the oil cup is evenly distributed with support posts, and the support posts support the silica gel cover.

[0016] A fitting cylinder is formed at the center of the silica gel cover, attaches to the upper part of the central cylinder, and covers the top of the central cylinder.

[0017] The cigarette holder covers the cylinder housing and the silica gel cover, and comprises a top cover and an annular wall provided below the top cover. The outlet is provided in the middle of the top cover. The outlet, the fitting cylinder, the central cylinder, and the ceramic heating tube have a common central axis.

[0018] The silica gel cover is further provided with a plurality of insertion holes, the top cover is provided with insertion posts, and each of the insertion posts is inserted into one of the insertion holes so as to connect the silica gel cover and the cigarette holder.

[0019] The cylinder housing is provided with an observation window corresponding to the oil cup.

[0020] The advantages of the present disclosure are as follows: The electronic cigarette filter has three usage modes: 1. the electronic cigarette filter is used separately without being connected to a cigarette, and in this case, the control assembly starts the atomizing assembly to atomize cigarette oil therein; 2. the electronic cigarette filter is externally connected to the cigarette, the cigarette is used alone, and in this case, the control assembly closes the atomizing assemble and does not atomize the cigarette oil therein, the cigarette coil ignites and generates smoke, the smoke enters the cylinder housing, passes through the control assembly, enters the atomizing assembly, and is guided to the outlet of the cigarette holder by the atomizing assembly; 3. the electronic cigarette filter is externally connected to the cigarette coil, and the atomizing assembly is started by the control assembly to atomize the cigarette oil, the cigarette coil ignites and generates smoke, the smoke enters the cylinder housing, then enters the atomizing assembly, and is mixed with the atomized cigarette oil, and flows together to the outlet of the cigarette holder. The above-mentioned three usage modes can meet the diversified requirements of users, and have a wide usage range.BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical schemes in the embodiments in the present disclosure, the drawings needed in the embodiments or the prior technical description are briefly introduced below. Obviously, the drawings described below are only some embodiments in the present disclosure, and for those skilled in the art, additional drawings may be obtained according to the drawings below without creative work.

[0022] FIG. 1 is a perspective view of the electronic cigarette filter according to an embodiment in the present disclosure.

[0023] FIG. 2 is an exploded view of the electronic cigarette filter according to an embodiment in the present disclosure.

[0024] FIG. 3 is the other exploded view of the electronic cigarette filter according to an embodiment in the present disclosure.

[0025] FIG. 4 is a top view of the electronic cigarette filter according to an embodiment in the present disclosure.

[0026] FIG. 5 is a bottom view of the electronic cigarette filter according to an embodiment in the present disclosure.

[0027] FIG. 6 is a section view along the A-A line of the FIG. 4.

[0028] FIG. 7 is a section view along the B-B line of the FIG. 5.EMBODIMENTS

[0029] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the attached drawings, in which the same or similar labels represent the same or similar elements or elements with the same or similar function. The embodiments described below by reference to the attached drawings are exemplary and are intended to explain embodiments of the present invention and cannot be understood as limits in the present invention.

[0030] In the description of the embodiments of the present invention, it should be understood that the directional indications involved in the embodiments, such as the “length”, “width”, “upper”, “lower”, “left”, “right”, “front”, “rear”, “internal” and “external”, indicating orientation or location relationship, are based on the orientation or position relationship showed in the figures. These directional indications are only for describing the embodiments in the present invention and simplifying the description, rather than indicating or implying that the device or the element must be constructed and operated in a specific azimuth, which cannot be understood as a limitation of the present invention.

[0031] Further, the terms “first”, and “second” are used only for description purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the part of technical features indicated. Thus, features defining “first” and “second” may expressly or implicitly include one or more of the features. In the description of the embodiments of the present invention, the “plurality of” means two or more unless otherwise specifically limited.

[0032] In the embodiment of the invention, unless other specified and qualified, the terms “installation ”,“ connection ”,“ fixed” and other terms shall be broadly understood, for example, it may be fixed connection, detachable connection, or integration; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected by intermediate media, it may be an internal connection of two components or the interaction of two components. For ordinary technicians in the field, the specific meaning of the above term in the embodiment of the invention can be understood according to the specific circumstances.

[0033] To make the objectives, technical solutions, and technical effects of the present disclosure clearer and more comprehensible, the following further describes the present disclosure with reference to specific embodiments. It should be understood that the embodiments described herein are only used to explain the present disclosure, but not used to limit the present disclosure.

[0034] Referring to FIGS. 1-7, an electronic cigarette filter includes a cylinder housing 100, a cigarette holder 110 and a bottom cover 120 arranged at two ends of the cylinder housing 100. The cigarette holder 110 is provided with an outlet 111. The electronic cigarette filter further includes an atomizing assembly 200 and a control assembly 300. The atomizing assembly 200 is arranged in the cylinder housing 100 near the cigarette holder 110 and used for atomizing cigarette oil and guiding the atomized cigarette oil to flow toward the outlet 111 of the cigarette holder 110. The control assembly 300 is arranged in the cylinder housing 100 near the bottom cover 120 and used for starting and closing the atomizing assembly 200. The bottom cover 120 is provided with several inlets121, the bottom portion of the cylinder housing 100 may be connected to a cigarette 400, and the smoke generated from the combustion of the cigarette 400 passes through the inlets 121, the control assembly 300, enters the atomizing assembly 200, and flows to the outlet 111 of the cigarette holder 110 under the guidance of the atomizing assembly 200.

[0035] The bottom portion of the cylinder housing 100 and the cigarette 400 are connected via a connector, which can be a cylinder attached to one end of the cigarette 400 and one end of the electronic cigarette filter. The structure and principle of the connector are well known to a person skilled in the art, and will not be described herein again.

[0036] The electronic cigarette filter has three usage modes: 1. the electronic cigarette filter is used separately without connecting to a cigarette 400, and in this case, the control assembly 300 starts the atomizing assembly 200 to atomize the cigarette oil therein; 2. the electronic cigarette filter is externally connected to the cigarette 400, the cigarette 400 is used alone, and in this case, the control assembly 300 closes the atomizing assembly 200 and does not atomize the cigarette oil therein, the cigarette 400 ignites and generates smoke, the smoke enters the cylinder housing 100, passes through the control assembly 300, enters the atomizing assembly 200, and is guided to the outlet 111 of the cigarette holder 110 by the atomizing assembly 200; 3. the electronic cigarette filter is externally connected to the cigarette 400, and the atomizing assembly 200 is started by the control assembly 300 to atomize the cigarette oil, the cigarette coil 400 ignites and generates smoke, the smoke enters the cylinder housing 100, then enters the atomizing assembly 200 to mix with the atomized cigarette oil, and flows together to the outlet 111 of the cigarette holder 110.

[0037] The control assembly 300 not only starts or closes the atomizing assembly 200, but also preheats cigarette oil, and controls the atomized amount of the cigarette oil so as to be suitable for different users.

[0038] Specifically, the control assembly 300 includes a cylinder support 310, a printed circuit board 320, a button 330, and a battery 340. The cylinder support 310 is disposed in the cylinder housing 100, and two opposite sides of the printed circuit board 320 are fixedly erected on the cylinder support 310, so that the sufficient space is reserved in the cylinder support 310 for the smoke generated by the combustion of the cigarette 400 to pass through. The printed circuit board 320 is electrically connected to the atomizing assembly 200 so as to supply power thereto.

[0039] The battery 340 is disposed in the cylinder housing 100, mounted between the cylinder support 310 and the bottom cover 120, and electrically connected to the printed circuit board 320 to supply power thereto. The button 330 is provided on the cylinder housing 100, and the button 330 penetrates through the cylinder support 310 so as to be electrically connected to the printed circuit board 320. The button 330 is pressed to open or close the connection of the circuit between the atomizing assembly 200 and the printed circuit board 320 so as to heat and atomize the cigarette oil or stop heating and atomizing the cigarette oil.

[0040] Further, the cylinder housing 100 is provided with the button hole 112, the button 220 is mounted in the button hole 112. The cylinder support 310 is provided with a first through hole 311, the button 220 passes through the first through hole 311 to connect the printed circuit board 320. The button 330 is provided with an on-off mode, a preheat mode, and an adjustment mode. Generally, different modes are set according to the number of continuously pressing the button 330 within a certain period. For example, in the on-off mode, the power-on or power-off is implemented by continuously pressing 5 times in 2 seconds. In the preheat mode, the preheat mode is started or turned off by continuously pressing 2 times in 2 seconds. In the adjustment mode, the power for heating the cigarette oil is increased or decreased by continuously pressing 3 times within 2 seconds to meet the requirements of different users.

[0041] The atomizing assembly 200 includes an oil cup 210, a central cylinder 220, and a ceramic heating tube 230. The oil cup 210 is disposed in the cylinder housing 100 and located between the cigarette holder 110 and the cylinder support 310. The bottom surface of the oil cup 210 is provided with a second through hole 211. Solid or pasty tobacco oil is stored in the oil cup 210, and liquid cigarette oil can also be stored therein.

[0042] The central cylinder 220 is disposed in the oil cup 210. The bottom periphery of the central cylinder 220 is connected to the bottom periphery of the oil cup 210. If the liquid cigarette oil is stored in the oil cup 210, the connection is in a sealed manner. The sealed connection manner may be integrally formed, may also be connected by a sealing strip, or may be fixedly connected by a sealing glue. A cigarette oil is stored in the oil cup 210, and the central cylinder 220 is connected to the oil cup 210 in a sealed manner so that the cigarette oil can be prevented from leaking from the joint of the two.

[0043] Preferably, the bottom of the oil cup 210 is provided with an annular groove 212, and the bottom of the central cylinder 220 is disposed in the annular groove 212 to abut against the annular groove 212 and is hermetically connected thereto.

[0044] The ceramic heating tube 230 is disposed in the central cylinder 220 and hermetically attached thereto. The central cylinder 220 is provided with an oil hole 221, so that the cigarette oil in the oil cup 210 can permeate through the oil hole 221 and distribute on the ceramic heating tube 230. The pins 231 of the ceramic heating tube 230 are connected to the printed circuit board 320. When the electronic cigarette filter is started by pressing the button 330, the battery 340 supplies power to the ceramic heating tube 230 through the printed circuit board 320, and the ceramic heating tube 230 heats to atomize the cigarette oil.

[0045] Preferably, the bottom surface of the oil cup 210 is provided with a boss 213 around the oil cup through hole 211, the boss 213 is used for placing the ceramic heating tube 230, and the pins 231 of the ceramic heating tube 230 penetrate through the second through hole 211 to connect to the printed circuit board 320.

[0046] The top of the oil cup 210 is further provided with a silica gel cover 130, and the silica gel cover 130 seals a gap between the top of the oil cup 210 and the top of the central cylinder 220, thereby preventing the cigarette oil from leaking from the top of the oil cup 210. The inner wall of the oil cup 210 is evenly distributed with support posts 214, and the support posts 214 support the silica gel cover 130.

[0047] A fitting cylinder 131 is formed at the center of the silica gel cover 130, and the fitting cylinder 131 is attached to the upper part of the central cylinder 220 and covers the top of the central cylinder 220. Preferably, the outer diameter of the upper portion of the central cylinder 220 is smaller than the outer diameter of the lower portion of the central cylinder 220, so that the mist generated by the atomization of the cigarette oil is collected at the upper portion of the central cylinder 220, thereby increasing the concentration thereof.

[0048] The cigarette holder 110 covers the cylinder housing 100 and the silica gel cover 130, and comprises a top cover 114 and an annular wall 115 provided below the top cover 114. The outlet 111 is provided in the middle of the top cover 114. The outlet 111, the fitting cylinder 131, the central cylinder 220, and the ceramic heating tube 230 have a common central axis. When the ceramic heating tube 230 generates heat to atomize the cigarette oil, the atomized cigarette oil flows out of the central cylinder 220, the fitting cylinder 131, and the outlet 111 in sequence for a user to intake.

[0049] Specifically, the outlet 111 is formed by extending downward from the center of the top cover 114 and is trumpet-shaped, and the bottom of the outlet 111 is connected to the top of the fitting cylinder 131.

[0050] The silica gel cover 130 is further provided with a plurality of insertion holes 132, the top cover 114 is provided with insertion posts 116, and each of the insertion posts 116 is inserted into one of the insertion holes 132 so as to connect the silica gel cover 130 and the cigarette holder 110. When the cigarette oil needs to be added, the cigarette holder110 is opened, and the cigarette oil is added into the oil cup 210 from the insertion holes 132.

[0051] The periphery of the top cover 114 extends out of the annular wall 115 to form a step. During installation, the annular wall 115 is inserted into the cylinder housing 100, and the top cover 114 is attached to the top of the cylinder housing 100.

[0052] Preferably, the cylinder housing 100 is provided with an observation window 113 corresponding to the oil cup 210, and the amount of cigarette oil in the oil cup 210 can be observed through the observation window 113.

[0053] Preferably, the annular wall 115 of the top cover 114, the sealing silicone rubber cover 130, and the oil cup 210 have the same outer diameter, so that they can be stacked in the cylinder housing 100 in a flush manner. The annular wall 115 of the top cover 114, the outer periphery of the silica gel cover 130, and the outer periphery of the oil cup 210 are respectively provided with a first notch groove 101, a second notch groove 102, and a third notch groove 103, the inner wall of the cylinder housing 100 is provided with a rib 104, the rib 104 is inserted into the first notch groove 101, the second notch groove 102 and the third notch groove 103, so as to prevent the top cover 114, the silica gel cover 130 and the oil cup 210 from rotating.

[0054] Preferably, the bottom cover 120 is provided with several the inlets 121. The lower part of the cylinder housing 100 can be connected to the cigarette 400. The smoke generated by the combustion of the cigarette 400 enters the cylinder housing 100 through the inlets 121, then reaches the cylindrical support 310. It passes through the gap inside the cylindrical support 310 and enters the central cylinder 220 and the ceramic heat tube 230, and then flows out through the fitting cylinder 131 of the silica gel cover 130 and the outlet 111 of the cigarette holder 110. The electronic cigarette filter can be used for smoking atomized e-liquid alone, or for smoking the cigarette 400 alone, or for smoking atomized e-liquid and the cigarette 400 simultaneously, which can meet various requirements of users.

[0055] The present disclosure is described in further detail with reference to specific preferred embodiments, and it cannot be determined that the specific implementation of the present disclosure is only limited to these descriptions. For a person of ordinary skill in the art to which the present disclosure belongs, on the premise of not departing from the concept of the present disclosure, the architecture form of the present disclosure can be flexible and varied, and a series of products can be derived. Only a few simple deductions or replacements should be considered as belonging to the scope of protection defined by the claims as filed.

Examples

Embodiment Construction

[0029]Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the attached drawings, in which the same or similar labels represent the same or similar elements or elements with the same or similar function. The embodiments described below by reference to the attached drawings are exemplary and are intended to explain embodiments of the present invention and cannot be understood as limits in the present invention.

[0030]In the description of the embodiments of the present invention, it should be understood that the directional indications involved in the embodiments, such as the “length”, “width”, “upper”, “lower”, “left”, “right”, “front”, “rear”, “internal” and “external”, indicating orientation or location relationship, are based on the orientation or position relationship showed in the figures. These directional indications are only for describing the embodiments in the present invention and simplifying the description, rath...

Claims

1. An electronic cigarette filter, comprising a cylinder housing, a cigarette holder and a bottom cover arranged at two ends of said housing, said cigarette holder is provided with an outlet, further comprising:an atomizing assembly, arranged in said housing near said cigarette holder and used for atomizing a cigarette oil and guiding an atomized cigarette oil to flow towards said outlet of said cigarette holder;a control assembly, arranged in said housing near said bottom cover and used for starting and closing said atomizing assembly;said bottom cover is provided with several inlets, a bottom portion of said cylinder housing may be connected to a cigarette, and a smoke generated from a combustion of said cigarette passes through said inlets and said control assembly, enters said atomizing assembly, and flows to said outlet of said cigarette holder under a guidance of said atomizing assembly.

2. The electronic cigarette filter according to claim 1, wherein said control assembly comprisinga cylinder support, disposed in said cylinder housing;a printed circuit board, two opposite sides thereof are fixedly erected on said cylinder support, and electrically connected to said atomizing assembly;a battery, disposed in said cylinder housing, mounted between said cylinder support and said bottom cover, and electrically connected to said printed circuit board;a button, provided on said cylinder housing, and passes through a fitst through hole of said cylinder support to be electrically connected to said printed circuit board; said button is pressed to open or close a connection of said circuit and said printed circuit board to heat and atomize said cigarette oil or stop heating and atomizing said cigarette oil.

3. The electronic cigarette filter according to claim 2, wherein said button is provided with an on-off mode, a preheat mode, and an adjustment mode.

4. The electronic cigarette filter according to claim 2, wherein said atomizing assembly comprising:an oil cup, disposed in said cylinder housing and located between said cigarette holder and said cylinder support; a bottom surface of said oil cup is provided with a second through hole;a central cylinder, disposed in said oil cup; a bottom periphery of said central cylinder is connected to a bottom periphery of said oil cup; said cigarette oil is stored between said central cylinder and said oil cup; anda ceramic heating tube, disposed in said central cylinder and hermetically attached thereto; said central cylinder is provided with an oil hole so that said cigarette oil can permeate therethrough and distribute on said ceramic heating tube.

5. The electronic cigarette filter according to claim 4, wherein said bottom surface of the oil cup is provided with a boss around said second through hole, said boss is used for placing said ceramic heating tube, and pins of said ceramic heating tube penetrate through said second through hole to connect to said printed circuit board.

6. The electronic cigarette filter according to claim 4, wherein a top of said oil cup is further provided with a silica gel cover, and said silica gel cover seals a gap between said top of the oil cup and a top of the central cylinder; an inner wall of the oil cup is evenly distributed with support posts, and said support posts support said silica gel cover.

7. The electronic cigarette filter according to claim 6, wherein a fitting cylinder is formed at a center of said silica gel cover, attaches to an upper part of said central cylinder and covers said top of said central cylinder.

8. The electronic cigarette filter according to claim 6, wherein said cigarette holder covers said housing and said silica gel cover, and comprises a top cover and an annular wall provided below said top cover; said outlet is provided in a middle of said top cover; said outlet, the fitting cylinder, said central cylinder and said ceramic heating tube have a common central axis.

9. The electronic cigarette filter according to claim 6, wherein said silica gel cover is further provided with a plurality of insertion holes, said top cover is provided with insertion posts, and each of said insertion posts is inserted into one of said insertion holes so as to connect said silica gel cover and said cigarette holder.

10. The electronic cigarette filter according to claim 4, wherein said cylinder housing is provided with an observation window corresponding to said oil cup.