Rapid oil supply method for bullet-replaceable electronic cigarette and electronic cigarette

Abstract

The invention discloses a quick oil supply method for an electronic cigarette with a replaceable cartridge and the electronic cigarette. The electronic cigarette comprises a main body, an atomizing core assembly and a tar bin, the main body is provided with a power supply and a control circuit, the atomizing core assembly is detachably connected with the main body, the tar bin is detachably connected with the atomizing core assembly, a variable volume structure is arranged in the tar bin, and tobacco tar is stored in the variable volume structure; in the process that the tar bin is connected with the atomizing core assembly, the atomizing core assembly abuts against the variable-volume structure, so that the volume of the variable-volume structure is reduced, and the tobacco tar is extruded into the atomizing core. The volume change is driven by the connection action to generate positive pressure difference, the atomizing core is infiltrated by tobacco tar within one second, and the atomizer can be used after the connection is completed; the tar bin and the atomizing core assembly are stored and transported separately, tar leakage during transportation is avoided, metal migration is prevented, and the quality of tobacco tar is kept.

Description

Technical Field

[0001] This invention relates to a method for rapid e-liquid supply in a replaceable cartridge electronic cigarette and the electronic cigarette itself. Background Technology

[0002] Existing e-cigarettes with separate oil and coil components use a design where the oil tank and atomizer coil are stored separately. When in use, the user connects the oil tank and the atomizer coil. After connection, the e-liquid flows out of the oil tank and gradually soaks into the atomizer coil through the capillary action of the cotton wick.

[0003] Because the capillary wetting process of the cotton wick is relatively slow, users usually need to wait 3-5 minutes after connecting the e-liquid tank before using it. If users vape before the atomizer coil is fully saturated with e-liquid, it will cause the atomizer coil to burn, producing a burnt taste and damaging the coil structure.

[0004] The aforementioned waiting time impacts user convenience, especially in scenarios where users urgently need to use the product or replace a new oil tank. Existing technologies present a technical challenge: how to achieve rapid oil transfer so that users can use the product immediately after connecting it to the oil tank. Summary of the Invention

[0005] The purpose of this invention is to provide a rapid oil supply method for replaceable cartridge electronic cigarettes and an electronic cigarette in general, so as to solve the problem of long oil delivery time in existing oil-wick separated electronic cigarettes.

[0006] To achieve the above objectives, the present invention provides an electronic cigarette, comprising: The main body is equipped with a power supply and control circuit; An atomizing core assembly, wherein the atomizing core assembly is detachably connected to the main body, and the atomizing core assembly includes an atomizing core; The oil tank is detachably connected to the atomizing core assembly, and the oil tank has a variable volume structure that stores e-liquid. During the connection between the oil tank and the atomizing core assembly, the atomizing core assembly comes into contact with the variable volume structure, causing the volume of the variable volume structure to decrease and squeezing the e-liquid into the atomizing core.

[0007] In one embodiment, the variable volume structure includes a piston, the oil reservoir has a receiving cavity and an opening, and the piston is movably disposed in the receiving cavity; e-liquid is stored in the cavity formed by the piston and the receiving cavity; the atomizing core assembly has a pushing part, the pushing part is inserted into the opening and pushes the piston to move, thereby reducing the volume of the cavity and squeezing out the e-liquid.

[0008] In one embodiment, the piston is provided with an oil outlet hole, and a diaphragm is provided inside the oil outlet hole. The diaphragm is used to seal the oil outlet hole. The pushing part is also used to push open the diaphragm, so that the oil outlet hole is opened and the e-liquid flows out through the oil outlet hole.

[0009] In one embodiment, a limiting part is provided inside the oil tank to limit the movement stroke of the piston; when the piston moves to the limiting part, it stops moving, and the pushing part continues to advance to push open the diaphragm.

[0010] In one embodiment, the pushing part is provided with an oil guiding channel, one end of which is connected to the receiving cavity and the other end is connected to the atomizing core; the e-liquid enters the oil guiding channel through the oil outlet and flows into the atomizing core through the oil guiding channel.

[0011] In one embodiment, the opening is provided with a removable sealing plug for closing the opening; the sealing plug has an inner side facing the receiving cavity, the inner side forming a seal against the receiving cavity.

[0012] In one embodiment, the sealing plug includes a cover and a sealing protrusion. The inner side of the cover abuts against the piston and forms a seal on the receiving cavity. The sealing protrusion extends from the cover into the receiving cavity and is inserted into the oil outlet hole to seal the oil outlet hole.

[0013] In one embodiment, the main body is provided with a snap-fit ​​part, and the oil tank is provided with a snap-fit ​​groove, wherein the snap-fit ​​part snaps into the snap-fit ​​groove.

[0014] In one embodiment, the connection between the oil tank and the atomizing core assembly is one of the following: snap-fit ​​connection, threaded connection, or magnetic connection.

[0015] In one embodiment, before the oil tank is connected to the atomizing core assembly, the atomizing core does not contain e-liquid, and the oil tank and the atomizing core are in a separate state.

[0016] The present invention also provides a method for rapid e-liquid supply to a replaceable cartridge electronic cigarette, comprising the following steps: S1: Provides an atomizing core assembly and an e-liquid tank. The atomizing core assembly includes an atomizing core, and the e-liquid tank has a variable volume structure that stores e-liquid. S2: Connect the oil tank to the atomizer core assembly. During the connection process, the volume of the variable volume structure is reduced, squeezing the e-liquid into the atomizer core to achieve rapid oil guiding.

[0017] The present invention also provides an electronic cigarette kit, comprising: The aforementioned electronic cigarettes; At least one spare oil tank, the spare oil tank having a variable volume structure, the variable volume structure storing e-liquid.

[0018] The technical solution of this invention involves setting a variable volume structure within the e-liquid tank. The connection process between the e-liquid tank and the atomizer coil assembly drives the volume of this variable volume structure to decrease, generating a positive pressure difference that forces the e-liquid into the atomizer coil. The e-liquid soaks into the atomizer coil within one second, and the device is ready for use after connection. Separate storage and transportation of the e-liquid tank and atomizer coil assembly avoids prolonged contact between the e-liquid and the heating coil, preventing metal migration. The e-liquid is stored in a sealed tank, minimizing contact with air. Separate storage and transportation also prevents leakage during transport. Attached Figure Description

[0019] The accompanying drawings used in the following description of the embodiments will be briefly introduced. The drawings described below are only some embodiments of the present invention. Those skilled in the art can obtain other drawings based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of an embodiment of an electronic cigarette provided by the present invention; Figure 2 This is an exploded view of an embodiment of the electronic cigarette provided by the present invention; Figure 3 This is an overall cross-sectional view of an embodiment of an electronic cigarette provided by the present invention; Figure 4 This is a cross-sectional view of an embodiment of the atomizing core assembly provided by the present invention; Figure 5 A schematic diagram of the internal structure of the oil tank provided by the present invention; Figure 6 This is a schematic diagram of the bottom structure of the oil tank and the sealing plug structure provided by the present invention.

[0021] Explanation of icon numbers: 100-Main body; 110-Power supply; 120-Control circuit; 130-Charging interface; 140-Snap-fit ​​part; 200-Atomizer core assembly; 210-Atomizer core; 220-Pushing part; 221-Oil guide channel; 222-Oil guide hole; 230-Mouthpiece; 300-Oil tank; 310-Piston; 311-Oil outlet; 312-Diaphragm; 320-Limiting part; 330-Sealing plug; 331-Cap; 332-Sealing protrusion; 340-Receiving cavity; 350-Opening; 360-Slot; 370-Fixing cap; 371-Through hole. Detailed Implementation

[0022] The technical solutions in the embodiments of the present invention will now be described with reference to the accompanying drawings. These described embodiments are only a portion of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0023] The directional indicators (such as up, down, left, and right) involved in the embodiments of this invention are only used to explain the relative positional relationships between components in a specific posture. The descriptions such as "first" and "second" in the embodiments of this invention are only for distinguishing purposes. The technical solutions of the various embodiments can be combined with each other.

[0024] This invention proposes a method for rapid e-liquid supply to replaceable cartridge electronic cigarettes and an electronic cigarette thereof.

[0025] like Figures 1 to 3 As shown, this embodiment provides an electronic cigarette, including a main body 100, an atomizing core assembly 200, and an oil tank 300.

[0026] The main body 100 serves as the power supply and control unit for the electronic cigarette, and includes a power supply 110 and a control circuit 120. The power supply 110 can be a lithium battery or other rechargeable battery, used to power the atomizer core 210. The control circuit 120 is located inside the main body 100 and is used to control the operating status of the electronic cigarette. A charging interface 130, which can be a Type-C interface, is located at the bottom of the main body 100 for charging the power supply 110.

[0027] The atomizer core assembly 200 is detachably connected to the main body 100. The atomizer core assembly 200 includes an atomizer core 210. The atomizer core 210 heats and atomizes the e-liquid, generating an aerosol for the user to inhale. A mouthpiece 230 is located at the top of the atomizer core assembly 200, through which the user inhales the aerosol. The atomizer core assembly 200 and the main body 100 can be detachably connected via snap-fit, threaded connection, or magnetic connection.

[0028] The e-liquid reservoir 300 is detachably connected to the atomizer core assembly 200, and the reservoir 300 is used to store e-liquid. The reservoir 300 has a variable volume structure that stores e-liquid. During the connection between the reservoir 300 and the atomizer core assembly 200, the atomizer core assembly 200 comes into contact with the variable volume structure, reducing the volume of the variable volume structure and forcing the e-liquid into the atomizer core 210.

[0029] By setting a variable volume structure, the action of connecting the oil tank 300 to the atomizer coil assembly 200 is converted into the driving force for e-liquid delivery. When the user inserts the oil tank 300 into the atomizer coil assembly 200, the e-liquid is squeezed into the atomizer coil 210 the moment the connection is completed, without waiting for the e-liquid to naturally permeate.

[0030] In some implementations, the variable volume structure can take the form of a compressible oil tank, a foldable oil tank, or a piston-type oil tank made of flexible materials.

[0031] like Figure 3 and Figure 4 As shown, the variable volume structure includes a piston 310. The oil tank 300 is provided with a receiving cavity 340 and an opening 350. The piston 310 is movably disposed in the receiving cavity 340, and the e-liquid is stored in the cavity formed by the piston 310 and the receiving cavity 340.

[0032] The atomizer core assembly 200 is provided with a pushing part 220, which extends upward from the top of the atomizer core assembly 200. When the oil tank 300 is connected to the atomizer core assembly 200, the pushing part 220 is inserted into the opening 350 of the oil tank 300 and pushes the piston 310 to move into the oil tank 300, so that the volume of the cavity formed by the piston 310 and the receiving cavity 340 is reduced, and the e-liquid is squeezed out under positive pressure.

[0033] The piston 310 is located at the bottom of the oil tank 300. A sliding seal is formed between the piston 310 and the inner wall of the receiving cavity 340. When the piston 310 moves axially along the receiving cavity 340 under the push of the pusher 220, it remains in a sealed state to prevent e-liquid from leaking from between the piston 310 and the inner wall of the receiving cavity 340.

[0034] like Figure 3 and Figure 4 As shown, the piston 310 is provided with an oil outlet hole 311, and a diaphragm 312 is provided inside the oil outlet hole 311. The diaphragm 312 is used to seal the oil outlet hole 311.

[0035] When the oil tank 300 is not connected to the atomizer core assembly 200, the diaphragm 312 seals the oil outlet 311, and the e-liquid is confined within the cavity formed by the piston 310 and the receiving chamber 340. The pushing part 220 is used to move the piston 310 and also to push open the diaphragm 312. After the pushing part 220 pushes the piston 310 to a predetermined position, the pushing part 220 continues to move forward, pushing open the diaphragm 312, causing the oil outlet 311 to open, and the e-liquid flows out through the oil outlet 311.

[0036] The diaphragm 312 can be made of a fragile thin film material. Pressure is applied to the top of the pushing part 220 to open or puncture the diaphragm 312. Alternatively, the diaphragm 312 can be a flip-up valve structure, with the pushing part 220 pushing the valve to flip and open the oil outlet 311. In some embodiments, the diaphragm 312 can also be made of a silicone material with a certain degree of elasticity. After the pushing part 220 opens the diaphragm 312, e-liquid flows out, and when the pushing part 220 is removed, the diaphragm 312 resets and seals the oil outlet 311.

[0037] like Figure 3As shown, the oil tank 300 is provided with a limiting part 320, which is used to limit the movement stroke of the piston 310.

[0038] The limiting part 320 is provided on the inner wall of the receiving cavity 340, and adopts the form of a stepped structure, a raised structure, or a stop ring. When the piston 310 moves to the limiting part 320, the edge of the piston 310 abuts against the limiting part 320, and the piston 310 stops moving. At this time, the pushing part 220 continues to move forward, and the top end of the pushing part 220 extends into the oil outlet 311, pushing open the diaphragm 312.

[0039] The limiting part 320 restricts the movement of the piston 310 to prevent excessive movement of the piston 310 and excessive extrusion of e-liquid. The limiting part 320 also separates the two actions of pushing the piston and opening the diaphragm. The piston 310 moves into position first to generate pre-pressure, and then the pushing part 220 opens the diaphragm 312 to release the e-liquid.

[0040] like Figure 4 As shown, the pusher 220 is provided with an oil guiding channel 221. One end of the oil guiding channel 221 is connected to the receiving cavity 340, and the other end is connected to the atomizing core 210. E-liquid enters the oil guiding channel 221 through the oil outlet 311 and flows into the atomizing core 210 through the oil guiding channel 221.

[0041] The pusher 220 is a hollow cylindrical structure with an oil guiding channel 221 inside. The top of the pusher 220 has an opening corresponding to the oil outlet 311. When the pusher 220 pushes open the diaphragm 312, the oil outlet 311 connects with the oil guiding channel 221, and the e-liquid enters the oil guiding channel 221 under pressure and flows along the oil guiding channel 221 to the atomizer core 210.

[0042] In some embodiments, the atomizer core assembly 200 is provided with a plurality of wicking holes 222, which are arranged around the push part 220. E-liquid enters the atomizer core 210 through the wicking channel 221 and the plurality of wicking holes 222, so that the e-liquid is evenly distributed in various parts of the atomizer core 210.

[0043] like Figure 5 and Figure 6 As shown, the opening 350 of the oil tank 300 is provided with a removable sealing plug 330, which is used to close the opening 350.

[0044] The sealing plug 330 has an inner surface facing the receiving cavity 340, which forms a seal against the receiving cavity 340. When the e-liquid tank 300 is not in use, the sealing plug 330 closes the opening 350, preventing external contaminants from entering the e-liquid tank 300 and preventing e-liquid leakage from the opening 350. Before use, the user removes the sealing plug 330 to expose the opening 350 and the bottom surface of the piston 310, and then connects the e-liquid tank 300 to the atomizer coil assembly 200. The sealing plug 330 can be marked with a "REMOVE" symbol.

[0045] In some embodiments, the sealing plug 330 includes a cover 331 and a sealing protrusion 332. The inner surface of the cover 331 abuts against the piston 310 and forms a seal on the receiving cavity 340. The sealing protrusion 332 extends from the cover 331 into the receiving cavity 340 and inserts into the oil outlet 311 to seal the oil outlet 311. The cover 331 seals the opening 350 and the bottom surface of the piston 310, and the sealing protrusion 332 seals the oil outlet 311, forming a double sealing structure.

[0046] like Figure 5 and Figure 6 As shown, a fixing cover 370 is also provided at the opening 350 of the oil tank 300. The fixing cover 370 is provided on the opening 350, and is snapped and fixed to the inner wall of the oil tank 300, and is detachably connected to the oil tank 300. The fixing cover 370 is used to limit the movement range of the piston 310 and prevent the piston 310 from falling out of the opening 350.

[0047] The fixed cover 370 is provided with a through hole 371, the position of which corresponds to the oil outlet hole 311 of the piston 310. The sealing protrusion 332 of the sealing plug 330 passes through the through hole 371 and is inserted into the oil outlet hole 311 to seal the oil outlet hole 311.

[0048] In some embodiments, the fixing cover 370 is connected to the inner wall of the oil tank 300 by a protrusion engagement. The edge of the fixing cover 370 has protrusions, and corresponding protrusions are provided on the inner wall of the oil tank 300; the two cooperate to position and fix the fixing cover 370. In other embodiments, the fixing cover 370 is connected to the inner wall of the oil tank 300 by a snap-fit ​​structure; the edge of the fixing cover 370 has claws that engage with grooves on the inner wall of the receiving cavity 340. These detachable connection methods facilitate the assembly and maintenance of the oil tank 300.

[0049] The connection between the oil tank 300 and the atomizing core assembly 200 can be one or more combinations of snap-fit ​​connection, threaded connection or magnetic connection.

[0050] In some embodiments, the main body 100 is provided with a snap-fit ​​part 140, and the oil tank 300 is provided with a snap-fit ​​groove 360 ​​that cooperates with the snap-fit ​​part 140. The snap-fit ​​part and the snap-fit ​​groove are snapped together to realize the positioning and fixation of the oil tank 300 and the main body 100.

[0051] Before the oil tank 300 is connected to the atomizer core assembly 200, the atomizer core 210 does not contain e-liquid, and the oil tank 300 and the atomizer core 210 are in a separate state.

[0052] The separate coil and e-liquid design prevents the e-liquid from contacting the heating coil of the atomizer 210 during storage, thus avoiding the migration of metal ions into the e-liquid. The e-liquid tank 300 uses a sealed structure to store the e-liquid independently, reducing its contact with air and preventing oxidation and deterioration. With the coil and e-liquid separated, even if vibration, pressure, or temperature changes occur during transportation, e-liquid will not leak from the atomizer 210. This separate coil and e-liquid design meets the compliance requirements for pre-filled e-cigarette products in different regions.

[0053] The present invention also provides a method for rapid e-liquid supply to a replaceable cartridge electronic cigarette, comprising the following steps: S1: Provides an atomizer core assembly 200 and an e-liquid tank 300. The atomizer core assembly 200 includes an atomizer core 210, and the e-liquid tank 300 has a variable volume structure that stores e-liquid.

[0054] S2: Connect the oil tank 300 to the atomizer core assembly 200. During the connection process, the volume of the variable volume structure is reduced, squeezing the e-liquid into the atomizer core 210 to achieve rapid oil guiding.

[0055] In some embodiments, the variable volume structure includes a piston 310, which has an oil outlet 311 sealed by a diaphragm 312; the atomizing core assembly 200 is provided with a pushing part 220. In step S2, the pushing part 220 is inserted into the oil tank 300 and pushes the piston 310 to move, thereby reducing the volume of the oil tank 300. The pushing part 220 pushes open the diaphragm 312, allowing the e-liquid to flow out through the oil outlet 311.

[0056] In some embodiments, before step S2, the sealing plug 330 at the opening of the oil tank 300 is removed, exposing the opening 350 of the oil tank 300 and the bottom surface of the piston 310.

[0057] In step S2, the e-liquid soaks into the atomizer core 210 within 1 second after the oil tank 300 is connected, and the user can then inhale.

[0058] The present invention also provides an electronic cigarette kit, comprising: The aforementioned electronic cigarettes; At least one spare oil tank, which has a variable volume structure that stores e-liquid.

[0059] The spare e-liquid tank can store e-liquid of different flavors or sizes, which users can replace as needed.

[0060] Without departing from the principles of this invention, those skilled in the art can make modifications and improvements to the above embodiments: Of course, other forms can also be used for the variable volume structure. For example, a compressible oil bladder made of flexible material can be used, where the volume of the oil bladder is reduced by the pusher 220, and the e-liquid flows out under pressure; alternatively, a spring and piston can be used, where the pusher 220 compresses the spring to generate a restoring force, and when the spring is released, it drives the piston to squeeze the e-liquid.

[0061] The structure of the limiting part 320 can also be adjusted according to actual needs. In addition to adopting a stepped structure, the limiting part 320 can also be provided with a convex ring or a stop block on the inner wall of the receiving cavity 340. The outer diameter or side protrusion of the piston 310 cooperates with the convex ring or the stop block to limit the movement stroke of the piston 310.

[0062] The detachable connection structure between the oil tank 300 and the atomizer core assembly 200 can also be varied. In addition to using a snap-fit ​​connection, threads can be provided on the outer wall of the oil tank 300, and the atomizer core assembly 200 can be provided with matching internal threads, allowing for connection by rotation; or magnetic components can be provided on both the oil tank 300 and the atomizer core assembly 200, using magnetic attraction to achieve quick connection.

[0063] The location of the oil guiding channel 221 can also be adjusted according to structural needs. When the push part 220 adopts a solid structure, the oil guiding channel 221 can be located on the outside of the push part 220, forming an annular oil guiding groove at the connection between the push part 220 and the atomizing core assembly 200, through which the e-liquid flows into the atomizing core 210.

[0064] The above description is merely an embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An electronic cigarette, characterized in that, include: The main body is equipped with a power supply and control circuit; An atomizing core assembly, wherein the atomizing core assembly is detachably connected to the main body, and the atomizing core assembly includes an atomizing core; The oil tank is detachably connected to the atomizer core assembly, and the oil tank has a variable volume structure that stores e-liquid. Wherein, at least a portion of the atomizing core assembly abuts against the variable volume structure, and the atomizing core assembly is used to reduce the volume of the variable volume structure during the process of connecting the oil tank and the atomizing core assembly, thereby squeezing the e-liquid into the atomizing core.

2. The electronic cigarette according to claim 1, characterized in that: The variable volume structure includes a piston, the oil tank has a receiving cavity and an opening, and the piston is movably disposed in the receiving cavity; the e-liquid is stored in the cavity formed by the piston and the receiving cavity; The atomizing core assembly is provided with a pushing part, which is inserted into the opening and pushes the piston to move, thereby reducing the volume of the cavity and squeezing out the e-liquid.

3. The electronic cigarette according to claim 2, characterized in that: The piston is provided with an oil outlet hole, and a diaphragm is provided inside the oil outlet hole for sealing the oil outlet hole; The pushing part is also used to push open the diaphragm, so that the oil outlet is opened and the e-liquid flows out through the oil outlet.

4. The electronic cigarette according to claim 3, characterized in that: The oil tank is equipped with a limiting part, which is used to limit the movement stroke of the piston; When the piston abuts against the limiting part, there is still a stroke margin between the pushing part and the diaphragm.

5. The electronic cigarette according to claim 3, characterized in that: The propulsion section is provided with an oil guiding channel, one end of which is connected to the receiving cavity and the other end is connected to the atomizing core; The e-liquid enters the oil guide channel through the oil outlet and flows into the atomizer core through the oil guide channel.

6. The electronic cigarette according to claim 3, characterized in that: The opening is provided with a removable sealing plug for closing the opening; the sealing plug includes a cover and a sealing protrusion, the inner side of the cover abuts against the piston and forms a seal on the receiving cavity; the sealing protrusion extends from the cover into the receiving cavity and is inserted into the oil outlet hole to seal the oil outlet hole.

7. The electronic cigarette according to claim 6, characterized in that: The atomizing core assembly and the oil tank are isolated from each other when not connected, and the atomizing core is a dry atomizing core.

8. A method for rapid e-liquid supply to a replaceable cartridge electronic cigarette, characterized in that, Includes the following steps: S1: Provides an atomizing core assembly and an e-liquid tank. The atomizing core assembly includes an atomizing core, and the e-liquid tank has a variable volume structure that stores e-liquid. S2: Connect the oil tank to the atomizer core assembly. During the connection process, the volume of the variable volume structure is reduced, squeezing the e-liquid into the atomizer core to achieve rapid oil guiding.

9. The rapid e-liquid supply method for replaceable cartridge electronic cigarettes according to claim 8, characterized in that: The variable volume structure includes a piston, which has an oil outlet sealed by a diaphragm, and the opening of the oil reservoir is provided with a sealing plug; The atomizing core assembly is provided with a pushing part. Before step S2, the sealing plug is removed. In step S2, the pushing part is inserted into the oil tank and pushes the piston to move, thereby reducing the volume of the oil tank. The pushing part pushes open the diaphragm, allowing the e-liquid to flow out through the oil outlet. The e-liquid soaks into the atomizer core within 1 second after the oil tank is connected.

10. An electronic cigarette kit, comprising: Electronic cigarette according to any one of claims 1 to 7; At least one spare oil tank, the spare oil tank having a variable volume structure, the variable volume structure storing e-liquid.

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