Electronic cigarette vaporizer equipped with soft vaporizing core

Abstract

An electronic cigarette vaporizer equipped with a soft vaporizing core comprises a mouthpiece housing, a vaporization assembly fitted inside the mouthpiece housing, and a bottom cap disposed on a bottom portion of the mouthpiece housing. The vaporization assembly comprises an upper vaporizing seat, and a base vaporizing seat which are connected, a bottom portion of the upper vaporizing seat is provided with a concave and upward-extending vaporizing core cavity, in which the soft vaporizing core is accommodated. The base vaporizing seat supports a bottom portion of the soft vaporizing core from below. The soft vaporizing core comprises a vaporizing core support, a heating element, and a soft liquid guiding element. The heating element comprises a sheet-like heating resistance provided with a conductive path, the heating resistance is disposed in the support through hole of the vaporizing core support, and the soft liquid guiding element is disposed on the heating resistance.

Description

TECHNICAL FIELD

[0001] The disclosure relates to the technical field of electronic cigarette vaporizers, and more particularly, the disclosure relates to an electronic cigarette vaporizer equipped with a soft vaporizing core.BACKGROUND

[0002] An electronic cigarette generally includes a battery part and a vaporizer. Herein, the battery part may be mounted with a battery for supplying power to the vaporizer. The vaporizer may be provided with a vaporizing core, which at least comprises a liquid guiding element and a heating element. The heating element can atomize the vaporizing liquid into vapor fog for users to vape when powered on. The vaporizing liquid is namely the to-be-vaporized e-cigarette liquid. The electronic cigarette, as a vaporizing device for the vaporizing liquid, can heat and atomize the vaporizing liquid stored in the electronic cigarette into vapor fog, aerosol, vapor or the like for users to vape.

[0003] The vaporizing core of electronic cigarette vaporizers in the market generally has a structure in which a liquid guiding cotton string is wound around a heating wire and a structure in which a heating resistance is disposed on the bottom of a porous ceramic body. Herein, based on the structure in which the liquid guiding cotton string is wound around the heating wire, a relatively small amount of vapor can be produced during operation due to the small cross-sectional area of the liquid guiding cotton string that conducts the vaporizing liquid. In addition, during high-temperature operation, the poor sealing between the vaporizing base and the liquid guiding cotton string may lead to liquid leakage. Furthermore, based on the structure in which the heating resistance is disposed on the bottom of porous ceramic body, the porous ceramic body has numerous unordered micro-pores. In such a case, after a long period of operation, macromolecules, micro-particles, carbohydrates and the like contained in the e-cigarette liquid may easily accumulate and gum up the micro-pores of the porous ceramic body. Furthermore, they may be prone to charring at high temperatures to produce a burned taste. In such a case, it may result in reduced vapor amount, inconsistent tastes, impure taste, and even the burned taste during vaping. In addition, the porous ceramic body has a complicated manufacturing process, a high cost, and a low production efficiency. Moreover, the porous ceramic body, which has complex compositions not ruled out heavy metals, has a risk of heavy metal precipitation after a long period of high-temperature operation.

[0004] As the electronic cigarette vaporizers in the market generally use a straight-through airflow channel in the middle, un-vaporized droplets contained in the vaporizing liquid or the liquor condensate formed by condensation of the vapor fog on the tube wall may leak out through the air inlet provided on the bottom cap of the vaporizer, or may be inhaled by users, thereby resulting in a poor user experience.

[0005] Besides, the electronic cigarette vaporizers in the market have numerous vaporizing components and accessories and thus have complicated structures, which leads to multiple processes of production and low assembly efficiency, and results in difficulties in achieving production automation.SUMMARYTechnical Problems

[0006] The disclosure aims to provide an electronic cigarette vaporizer equipped with a soft vaporizing core to overcome the abovementioned disadvantages in the background. The electronic cigarette vaporizer equipped with a soft vaporizing core can achieve sufficient liquid supply, great vaporization amount, and pure taste, and is not prone to a burned taste. It has a low material cost, a simple structure, and a high production efficiency.Technical Solutions

[0007] The disclosure provides a technical solution as follows. An electronic cigarette vaporizer equipped with a soft vaporizing core comprises a mouthpiece housing, a vaporization assembly fitted inside an inner wall of the mouthpiece housing, and a bottom cap disposed on a bottom portion of the mouthpiece housing. The vaporization assembly comprises an upper vaporizing seat, a soft vaporizing core, and a base vaporizing seat, wherein the upper vaporizing seat above and the base vaporizing seat below are connected with each other, a bottom portion of the upper vaporizing seat is provided with a vaporizing core cavity that is concave and extends upwards, the soft vaporizing core is accommodated in the vaporizing core cavity, the base vaporizing seat supports a bottom portion of the soft vaporizing core from below, the soft vaporizing core comprises a vaporizing core support, a heating element, and a soft liquid guiding element, the vaporizing core support has an upper flat surface and a lower flat surface and is provided with a support through hole in middle, the heating element comprises a sheet-like heating resistance provided with a conductive path, the heating resistance is disposed in the support through hole, and the soft liquid guiding element is disposed on an upper surface of the heating resistance.

[0008] Preferably, the soft vaporizing core may further comprise a permeable sheet provided with permeation holes, and the permeable sheet may be disposed between the soft liquid guiding element and the vaporizing core support.

[0009] Preferably, the soft liquid guiding element may be made of at least one of materials including organic cotton, ceramic fiber cotton, glass fiber cotton, PP fiber, nylon fiber, non-woven fabric, and PET fiber.

[0010] Preferably, the heating element may further comprise electrode contact disks connected with both ends of the heating resistance, the electrode contact disks may be disposed on a lower flat surface of the vaporizing core support and positioned on two sides of the support through hole, and on two sides of the heating resistance and the electrode contact disks, a plurality of fixing claws may be provided, which extend into an interior of the vaporizing core support.

[0011] Preferably, the upper vaporizing seat may comprise an upper seat frame and an upper seat sealing component, the upper seat frame may be provided at an upper portion with a discharge tube and a lower portion with a flat-shaped body, a sidewall of the flat-shaped body may be fitted into the upper seat sealing component and then fitted into an inner wall of the mouthpiece housing, the vaporizing core cavity that is concave and extends upwards may be provided at a bottom portion of the flat-shaped body, air outlet through holes may be provided on two sides outside the vaporizing core cavity to communicate with two sides inside the discharge tube located above, and liquid inlet through holes may be provided on two sides inside the vaporizing core cavity to communicate with an upper surface of the flat-shaped body at two sides outside the discharge tube.

[0012] Preferably, the mouthpiece housing may be provided at an upper end with a mouthpiece opening and with a mouthpiece tube formed by an edge around the mouthpiece opening extending into the mouthpiece housing, the upper vaporizing seat may further comprise a vapor channel sealing component connected between the discharge tube and the mouthpiece tube, a bottom portion of the vapor channel sealing component which is inserted in the discharge tube may have a reduced outer diameter, and an inner annular groove may be defined between the bottom portion of the vapor channel sealing component and an inner wall of the discharge tube.

[0013] Preferably, the flat-shaped body may be provided with a liquid filling through hole which allows communication between upper and lower sides of the flat-shaped body, the upper seat sealing component may comprise a portion provided on a sidewall of the flat-shaped body, a portion provided on a lower end face of the vaporizing core cavity, and a portion provided on an inner wall of the liquid filling through hole, and the upper seat frame made of a rigid plastic material and the upper seat sealing component made of a soft silicone rubber material may be integrally formed through an over-molding process by rubber coating.

[0014] Preferably, the base vaporizing seat may comprise columnar electrodes, a base seat frame above and a base seat sealing component below which are connected with each other, a sidewall of the base seat frame and a sidewall of the base seat sealing component may be fitted in an inner wall of the mouthpiece housing, an upper end of the base seat frame may be connected to a lower end of the upper vaporizing seat, each of the columnar electrodes may be arranged to vertically extend through an interior of the base seat frame, with a top end of each of the columnar electrodes supporting and abutting on respective one of electrode contact disks.

[0015] Preferably, the base seat frame may be provided with a vaporizing groove at a position below the soft vaporizing core, a bottom portion of the vaporizing groove may be provided with a third air inlet hole, a lower end of the base seat frame may be provided with a first air inlet groove extending upwards, the base seat sealing component may be provided with a second air inlet hole at a position below the first air inlet groove, a second air inlet tube wall may extend upwards from the second air inlet hole and above an upper end surface of the base seat sealing component, the second air inlet tube wall may extend into the first air inlet groove, a first air gap may be defined between an upper end of the second air inlet tube wall and a bottom portion of the first air inlet groove, a second air gap may be defined between the second air inlet tube wall and the first air inlet groove, the base seat sealing component may be provided with a second air inlet groove at a position below the third air inlet hole, and the second air inlet groove may communicate the second air gap with the third air inlet hole.

[0016] Preferably, the base seat frame and the base seat sealing component may be respectively provided with electrode holes for mounting the columnar electrodes, a bottom portion of the base seat sealing component may be further provided with a PCB circuit board, the PCB circuit board may be provided with electrode springs, and bottom ends of the columnar electrodes may abut on the electrode springs, respectively.Advantages

[0017] According to the electronic cigarette vaporizer equipped with a soft vaporizing core, the soft vaporizing core is provided. As the soft liquid guiding element of the soft vaporizing core conducts the vaporizing liquid from top to bottom, it achieves a large area for conducting and heating the vaporizing liquid, and avoids the shortcomings of the liquid guiding cotton string including small conduction area for conducting vaporizing liquid, small amount of vapor produced during operation, and being prone to liquid leakage during high-temperature operation. In addition, as the soft liquid guiding element for conducting the vaporizing liquid has a loose fiber structure, it eliminates the need for microporous conduction. It avoids the shortcomings that, during operation of the porous ceramic body, macromolecules, micro-particles, carbohydrates and the like contained in the vaporizing liquid may easily accumulate and gum up the micro-pores of the porous ceramic body and may be prone to charring at high temperatures to produce a burned taste. Hence, it can maintain great vaporization amount and consistent and pure taste, prevent burned taste, and improve user experience. Due to the low cost of raw materials, the elimination of sintering process, the simple processing, and the simple structure, it is easy to mount the soft liquid guiding element into the vaporizer, thereby significantly reducing the cost and improving production efficiency. Moreover, as the material of the soft liquid guiding element has simple composition without heavy metals, there is no risk of heavy metal precipitation during high-temperature operation of the soft vaporizing core.

[0018] The vaporizer of the disclosure has multi-turn and tortuous air pathway consisting of a plurality of path sections, which allows outside air to enter smoothly, and meanwhile prevents the liquor condensate dropped into the vaporizing chamber from leaking out reversely through the bottom cap. In addition, the inverted inner annular groove of the vapor channel sealing component can collect and obstruct the condensate of the vapor fog that is discharged, to prevent the condensate from being inhaled by the user and thus improve user experience.

[0019] The vaporizer of the disclosure provides the upper vaporizing seat and the base vaporizing seat which include rigid plastic material and soft sealing component. They can be integrally formed through an over-molding process by rubber coating during production. In such a case, it has reduced number of components and accessories, simplifies the production process, facilitates easy assembly, increases production efficiency, and facilitates production automation.BRIEF DESCRIPTION OF THE DRAWINGS

[0020] FIG. 1 is an exploded side view of an electronic cigarette vaporizer according to an embodiment of the disclosure;

[0021] FIG. 2 is a perspective view of a mouthpiece housing according to an embodiment of the disclosure;

[0022] FIG. 3 is a side cross-sectional view of a mouthpiece housing according to an embodiment of the disclosure;

[0023] FIG. 4 is an exploded side view of a vaporization assembly according to an embodiment of the disclosure;

[0024] FIG. 5 is an exploded perspective view of an upper vaporizing seat according to an embodiment of the disclosure;

[0025] FIG. 6 is a side cross-sectional view of an upper vaporizing seat according to an embodiment of the disclosure;

[0026] FIG. 7 is a front cross-sectional view of an upper vaporizing seat according to an embodiment of the disclosure;

[0027] FIG. 8 is a first perspective view of an upper vaporizing seat according to an embodiment of the disclosure;

[0028] FIG. 9 is a second perspective view of an upper vaporizing seat according to an embodiment of the disclosure;

[0029] FIG. 10 is a perspective view of a soft vaporizing core according to an embodiment of the disclosure;

[0030] FIG. 11 is an exploded perspective view of a soft vaporizing core according to an embodiment of the disclosure;

[0031] FIG. 12 is a first perspective view illustrating a vaporizing core support and a heating element according to an embodiment of the disclosure;

[0032] FIG. 13 is a second perspective view illustrating a vaporizing core support and a heating element according to an embodiment of the disclosure;

[0033] FIG. 14 is an exploded perspective view illustrating a vaporizing core support and a heating element according to an embodiment of the disclosure;

[0034] FIG. 15 is an exploded perspective view illustrating a soft vaporizing core according to a further embodiment of the disclosure;

[0035] FIG. 16 is an exploded perspective view illustrating a base vaporizing seat according to an embodiment of the disclosure;

[0036] FIG. 17 is a side cross-sectional view of a base vaporizing seat according to an embodiment of the disclosure;

[0037] FIG. 18 is a front cross-sectional view of a base vaporizing seat according to an embodiment of the disclosure;

[0038] FIG. 19 is a first perspective view of a base seat frame according to an embodiment of the disclosure;

[0039] FIG. 20 is a second perspective view of a base seat frame according to an embodiment of the disclosure;

[0040] FIG. 21 is a first perspective view of a base seat sealing component according to an embodiment of the disclosure;

[0041] FIG. 22 is a second perspective view of a base seat sealing component according to an embodiment of the disclosure;

[0042] FIG. 23 is a perspective view of a bottom cap according to an embodiment of the disclosure;

[0043] FIG. 24 is a side cross-sectional view of an electronic cigarette vaporizer according to an embodiment of the disclosure;

[0044] FIG. 25 is a front cross-sectional view of an electronic cigarette vaporizer according to an embodiment of the disclosure.DETAILED DESCRIPTION OF ILLUSTRATED EMBODIMENTS

[0045] For convenience of description, the electronic cigarette vaporizer equipped with a soft vaporizing core is vertically disposed in such a manner that the mouthpiece opening faces upwards, as shown in FIG. 1, and the terms such as “upper”, “lower”, “upper portion”, “lower portion”, “upper end”, “lower end”, “above”, “below”, “upwards”, and “downwards” as used herein for illustrating the components, refer to position and orientation relationships when the electronic cigarette vaporizer equipped with a soft vaporizing core is vertically disposed in such a manner that the mouthpiece opening faces upwards.Embodiments of the Disclosure

[0046] The disclosure will be further explained in detail with reference to the drawings and particular embodiments.Embodiments

[0047] Referring to FIG. 1, the electronic cigarette vaporizer equipped with a soft vaporizing core mainly consists of a mouthpiece housing 100, a vaporization assembly 200 fitted inside the inner wall of the mouthpiece housing 100, and a bottom cap 300 for sealing a bottom portion of the mouthpiece housing 100.

[0048] Referring to FIGS. 1-3, the upper end of the mouthpiece housing 100 is provided with a mouthpiece opening 1001 offset from the center axis. The edge around the mouthpiece opening 1001 vertically extends downwards into the mouthpiece housing to form the mouthpiece tube 1002. The bottom portion of the mouthpiece housing 100 is provided with an opening 1003, through which the vaporization assembly 200 can be inserted upwards and fitted inside the inner wall of the mouthpiece housing 100. The bottom cap 300 is fitted over the outer wall of the opening 1003.

[0049] Referring to FIG. 4, the vaporization assembly 200 comprises an upper vaporizing seat 10, a soft vaporizing core 20, and a base vaporizing seat 30. The upper vaporizing seat 10 and the base vaporizing seat 30 are connected with each other, with the upper vaporizing seat 10 above the base vaporizing seat 30. The soft vaporizing core 20 is positioned within the internal space between the base vaporizing seat 30 and the upper vaporizing seat 10. The bottom portion of the upper vaporizing seat 10 is provided with a vaporizing core cavity 1210 that is concave and extends upwards. The soft vaporizing core 20 is accommodated in the vaporizing core cavity 1210, and the base vaporizing seat 30 supports the soft vaporizing core 20 from below.

[0050] Referring to FIGS. 5-9, the upper vaporizing seat 10 mainly consists of a vapor channel sealing component 11, an upper seat frame 12, and an upper seat sealing component 13. Herein, the upper portion of the upper seat frame 12 is provided with a discharge tube 120, and the lower portion is provided with a flat-shaped body 121, and the cross-sectional area of the discharge tube 120 is smaller than that of the flat-shaped body 121. The sidewall of the flat-shaped body 121 may be fitted into the upper seat sealing component 13 and then they are fitted into the inner wall of the mouthpiece housing 100. The bottom portion of the flat-shaped body 121 is provided with a vaporizing core cavity 1210 extending upwards in a groove shape, to accommodate the soft vaporizing core 20. On two sides outside the vaporizing core cavity 1210, air outlet through holes 1211 are provided, which communicate with two sides inside the discharge tube 120 located above. On two sides inside the vaporizing core cavity 1210, liquid inlet through holes 1212 are provided, which communicate with the upper surface of the flat-shaped body 121, at two sides outside the discharge tube 120. Furthermore, the flat-shaped body 121 is provided with a liquid filling through hole 1213, which allows communication between the upper and lower sides of the flat-shaped body 121 and serves as a channel for filling the vaporizing liquid during assembly. After filling of the vaporizing liquid, the liquid filling through hole 1213 can be sealed with a plunger 313, as described later.

[0051] The upper end of the discharge tube 120 is connected with the mouthpiece tube 1002 of the mouthpiece housing 100. The vapor channel sealing component 11 is connected between the discharge tube 120 and the mouthpiece tube 1002 to achieve a sealed connection therebetween. The vapor channel sealing component 11 may be made of a silicone rubber material. The bottom portion of the vapor channel sealing component 11 which is inserted in the discharge tube 120 has a reduced outer diameter, and an inverted inner annular groove 110 is defined between it and the inner wall of the discharge tube 120. This inner annular groove 110 serves to collect and obstruct the condensate of the vapor fog discharged through the discharge tube 120, thereby preventing the condensate from being inhaled by the user. The upper seat sealing component 13 is provided on the sidewall of the flat-shaped body 121, the lower end surface of the vaporizing core cavity 1210, and the inner wall of the liquid filling through hole 1213, to facilitate sealing. That is, the upper seat sealing component 13 includes a portion on the sidewall of the flat-shaped body 121, a portion on the lower end face of the vaporizing core cavity 1210, and a portion on the inner wall of the liquid filling through hole 1213.

[0052] In the disclosure, the upper seat frame 12 may be made of a rigid plastic material, and the upper seat sealing component 13 may be made of a soft silicone rubber material. During production, both of them may be integrally formed through an over-molding process by rubber coating. In such a case, it has reduced number of components and accessories, simplifies the production process, facilitates easy assembly, increases production efficiency, and facilitates production automation.

[0053] As shown in FIGS. 10-14, the soft vaporizing core 20 comprises a vaporizing core support 21, a heating element 22, and a soft liquid guiding element 23. The vaporizing core support 21 has an upper flat surface 211 and a lower flat surface 212, and is provided with a support through hole 210 in the middle. The heating element 22 includes a sheet-like heating resistance 221 with a conductive path in a certain shape. The heating resistance 221 is disposed in the support through hole 210. In the embodiment, the heating resistance 221 is aligned or substantially aligned with the upper flat surface 211 of the vaporizing core support 21. The soft liquid guiding element 23 is disposed on the upper surface of the heating resistance 221, with its bottom portion abutting on the heating resistance 221, such that the vaporizing liquid contained in the soft liquid guiding element 23 can come into contact with the heating resistance 221, and the heating resistance 221 can directly heat and atomize the vaporizing liquid into vapor fog.

[0054] In the embodiment, the soft liquid guiding element 23 may be made of organic cotton and formed as a block-shaped body that is cohesive and cannot be easily dispersed. That is, the soft liquid guiding element 23 consists of a block-shaped body. In further embodiments, the soft liquid guiding element 23 may also be made of one or a combination of more materials including ceramic fiber cotton, glass fiber cotton, PP fiber, nylon fiber, non-woven fabric, and PET fiber, all of which are soft materials. Due to the low cost of raw materials, the elimination of sintering process, the simple processing, and the simple structure, it is easy to mount the soft liquid guiding element 23 into the vaporizer. Accordingly, it has a significantly reduced cost and an improved production efficiency. Additionally, as the material of the soft liquid guiding element 23 has simple composition without heavy metals, there is no risk of heavy metal precipitation during high-temperature operation of the soft vaporizing core.

[0055] During operation, the soft liquid guiding element 23 conducts the vaporizing liquid from top to bottom. Its block-shaped structure achieves a large area for conducting and heating the vaporizing liquid, and avoids the shortcomings of the liquid guiding cotton string including small conduction area for conducting vaporizing liquid, small amount of vapor produced during operation, and being prone to liquid leakage during high-temperature operation. As the soft liquid guiding element 23 uses the abovementioned soft cotton-like materials which all have a loose fiber structure, the vaporizing liquid can be conducted through the gaps between the fiber structures, without the need for microporous conduction. Hence, it can achieve quick liquid conduction and maintain a greater vaporization amount. Compared to rigid porous ceramic bodies, it avoids the shortcomings that macromolecules, micro-particles, carbohydrates and the like contained in the vaporizing liquid may easily accumulate and gum up the micro-pores and may be prone to charring at high temperatures to produce a burned taste.

[0056] Herein, the heating element 22 further comprises electrode contact disks 222 connected with both ends of the heating resistance 221. The electrode contact disks 222 are disposed on the lower flat surface of the vaporizing core support 21 and positioned on both sides of the support through hole 210. The electrode contact disks 222 allow the columnar electrodes 33 to abut thereon, to supply power.

[0057] On two sides of the heating resistance 221 and the electrode contact disks 222, several fixing claws 223 are provided, which extend into the interior of the vaporizing core support 21. The fixing claws 223 facilitate firmer fixing on the vaporizing core support 21. In the disclosure, the vaporizing core support 21 may be made of heat-resistant plastic materials. The heating element 22 can be placed in the mold before the injection molding of the vaporizing core support 21, such that it can be formed integrally with the vaporizing core support 21. In particular, as the fixing claws 223 are molded in the vaporizing core support 21, they can be more firmly connected, preventing the heating element 22 from detaching from the vaporizing core support.

[0058] In the embodiment, the conductive path of the heating resistance 221 may be designed in a shape of several repeated S. In further embodiments, it may also be designed in other shapes and thus is not limited to the S-shape. The heating resistance 221 is generally composed of a metal heating resistance. The soft liquid guiding element 23 can absorb, store, and conduct the vaporizing liquid. The heating resistance 221 abuts against the lower portion of the soft liquid guiding element 23. Thus, in the case that the heating resistance 221 generates heat when powered on, it heats, vaporizes and atomizes the vaporizing liquid in the lower portion of the soft liquid guiding element 23 into vapor fog, which then can be dispersed downwards through the support through hole 210.

[0059] Referring to FIG. 15, the soft vaporizing core 20 in a further embodiment further comprises a permeable sheet 24 provided with permeation holes (not shown in the drawings). The thickness of the permeable sheet 24 may be set between 0.5 mm and 2 mm. The permeable sheet 24 is disposed between the soft liquid guiding element 23 and the support 21. Herein, the diameter of the permeation holes of the permeable sheet 24 may be set between 50 μm and 2 mm. In the embodiment, the permeable sheet 24 serves to support the soft liquid guiding element 23 from below and prevents it from deforming or sagging under a long period of high-temperature operation. Meanwhile, it allows the vaporizing liquid stored in the soft liquid guiding element 23 to be slowly released onto the heating resistance 221 through the permeation holes. During operation, it can balance the evaporation rate of the vaporizing liquid with its permeation rate. When the vaporization is inactivated, the vaporizing liquid flowing through the permeation holes can achieve another kind of balance due to the surface tension, preventing dripping or leakage of the vaporizing liquid. The permeable sheet 24 may be made very thin and made of high-temperature-resistant, non-conductive materials, such as plastic, silicone, porous ceramic body, diatomaceous earth, etc.

[0060] As shown in FIGS. 16-25, the base vaporizing seat 30 mainly consists of columnar electrodes 33, a base seat frame 31 located above and a base seat sealing component 32 located below which are connected with each other, as well as a PCB circuit board 34. The sidewall of the base seat frame 31 and the sidewall of the base seat sealing component 32 are fitted in the inner wall of the mouthpiece housing 100. The upper end of the base seat frame 31 is connected to the lower end of the upper vaporizing seat 10. Each of the columnar electrodes 33 is arranged to vertically extend through the interior of the base seat frame 31, with its top end supporting and abutting on the electrode contact disk 222. The columnar electrodes 33 serve to support the soft vaporizing core 20 from below, and meanwhile abut on the electrode contact disk 222 to supply power for the heating resistance 221.

[0061] The base seat frame 31 is provided with a vaporizing groove 310 at a position below the soft vaporizing core 20. The bottom portion of the vaporizing groove 310 is provided with a third air inlet hole 311. One side of the lower end of the base seat frame 31 is provided with a first air inlet groove 312 extending upwards. The base seat sealing component 32 is provided with a second air inlet hole 321 at a position below the first air inlet groove 312. A second air inlet tube wall 3210 is provided, which extends upwards from the second air inlet hole 321, above the upper end surface of the base seat sealing component 32. The second air inlet tube wall 3210 extends into the first air inlet groove 312. A first air gap 3121 is defined between the upper end of the second air inlet tube wall 3210 and the bottom portion of the first air inlet groove 312, and a second air gap 3122 is defined between the second air inlet tube wall 3210 and the first air inlet groove 312. The base seat sealing component 32 is provided with a second air inlet groove 322 at a position below the third air inlet hole 311, and the second air inlet groove 322 communicates the second air gap 3122 with the third air inlet hole 311.

[0062] The base seat frame 31 and the base seat sealing component 32 are respectively provided with electrode holes 330 for mounting the columnar electrodes. The bottom portion of the base seat sealing component 32 is further provided with a PCB circuit board mounting groove 340, in which the PCB circuit board 34 can be mounted. The PCB circuit board 34 is provided with electrode springs 341, and the bottom ends of the columnar electrodes 33 abut on the electrode springs 341, respectively. The PCB circuit board 34 may be further provided with a control chip, such as an anti-counterfeiting chip, a child-resistant chip, and the like.

[0063] The base seat frame 31 is provided with a plunger 313 protruding upwards. The plunger 313 serves to plug the liquid filling through hole 1213 after filling to prevent liquid leakage. The base seat frame 31 is further provided with two first mounting holes 314. The bottom portion of the base seat frame 31 is further provided with four first securing posts 315. The upper portion of the base seat sealing component 32 is further provided with two second securing posts 322 and four second mounting blind holes 323. The second securing posts 322 extend upwards through the first mounting holes 314 to be fixed, to enable positioning, mounting, and fixation of the base seat frame 31 and the base seat sealing component 32. The first securing posts 315 are mounted into the second mounting blind holes 323, to enable positioning, mounting, and fixation of the base seat frame 31 and the base seat sealing component 32.

[0064] As shown in FIGS. 23-25, two PCB electrodes (not shown in the drawings) are disposed under the PCB circuit board, the bottom cap 300 is provided with bottom cap electrode holes 3001 at a position corresponding to the PCB electrodes. The PCB electrodes are exposed from the bottom cap electrode holes 3001, to allow the electrodes of the e-cigarette battery to abut on the PCB electrodes. The bottom cap 300 is further provided with several first air inlet holes 3002 at a position corresponding to the second air inlet hole 321.

[0065] As shown in FIGS. 24 and 25, the mouthpiece housing 100 is provided with an internal cavity. After mounting of the vaporization assembly 200 into the mouthpiece housing 100, the cavity defined between the inner wall of the mouthpiece housing 100, the upper seat frame 12, and the mouthpiece tube 1002 serves as a liquid storage chamber 40 for storing vaporizing liquid.

[0066] Referring to FIGS. 24 and 25, during operation of the electronic cigarette vaporizer of the disclosure, the user may vape through the mouthpiece opening 1001, to generate a negative pressure inside the vaporizer. Consequently, outside air may enter from the first air inlet holes 3002 provided on the bottom cap of the vaporizer, flow into the second air inlet hole 321 and corresponding second air inlet tube wall 3210, and then enter the first air gap 3121 in the first air inlet groove 312. Then, the air entered the first air gap 3121 may reverse direction and flow downwards into the second air gap 3122. After that, it may transversely flow into the second air inlet groove 322 of the base seat sealing component 34, and then flow upwards to the third air inlet hole 311 and then enter the vaporizing groove 310. At this moment, as the vaporizing liquid in the liquid storage chamber 40 has already flowed downwards into the soft vaporizing core 20 through the liquid inlet through holes 1212 provided on two sides outside the discharge tube 120, the heating resistance 221, which is powered on to generate heat, can heat, vaporize, and atomize the vaporizing liquid in the lower portion of the soft liquid guiding element 23 into vapor fog. Then, the vapor fog which flows downwards into the vaporizing groove 310 can be carried by the entered air, to flow upwards through the air outlet through hole 1211 into the interior of the discharge tube 120, and then flow through the mouthpiece tube 1002 and flow out from the mouthpiece opening 1001 to be inhaled by the user finally. The abovementioned directions and paths of the airflow are indicated by the series of hollow arrows as shown in FIG. 24.

[0067] The internal structure of the electronic cigarette vaporizer of the disclosure is provided with the air pathway including the first air inlet holes 3002, the second air inlet hole 321, the first air gap 3121, the second air gap 3122, the second air inlet groove 322, the third air inlet hole 311, and the vaporizing groove 310. Such an air pathway, which consists of a plurality of path sections, is multi-turn and tortuous. It allows outside air to enter smoothly, and meanwhile prevents the liquor condensate dropped into the vaporizing chamber from flowing downwards and leaking out reversely through the first air inlet holes 3002.

[0068] As mentioned above, according to the electronic cigarette vaporizer with a soft vaporizing core of the disclosure, the soft liquid guiding element is easy to be mounted into the vaporizer and achieves an improved production efficiency due to the low cost of raw materials, the elimination of sintering process, the simple processing, and the simple structure. As the soft liquid guiding element conducts the vaporizing liquid from top to bottom, it achieves a large area for conducting and heating the vaporizing liquid, and avoids the shortcomings of the liquid guiding cotton string including small conduction area for conducting vaporizing liquid, small amount of vapor produced during operation, and being prone to liquid leakage during high-temperature operation. In addition, as the soft liquid guiding element for conducting the vaporizing liquid has a loose fiber structure, it eliminates the need for microporous conduction. It avoids the shortcomings that, during operation of the porous ceramic body, macromolecules, micro-particles, carbohydrates and the like contained in the vaporizing liquid may easily accumulate and gum up the micro-pores of the porous ceramic body and may be prone to charring at high temperatures to produce a burned taste. Hence, it can maintain great vaporization amount and consistent and pure taste, prevent burned taste, and improve user experience. Due to the low cost of raw materials, the elimination of sintering process, the simple processing, and the simple structure, it is easy to mount the soft liquid guiding element into the vaporizer, thereby significantly reducing the cost and improving production efficiency. Moreover, as the material of the soft liquid guiding element has simple composition without heavy metals, there is no risk of heavy metal precipitation during high-temperature operation of the soft vaporizing core.

[0069] The vaporizer of the disclosure has multi-turn and tortuous air pathway consisting of a plurality of path sections, which allows outside air to enter smoothly, and meanwhile prevents the liquor condensate dropped into the vaporizing chamber from leaking out reversely through the bottom cap. In addition, the inverted inner annular groove of the vapor channel sealing component can collect and obstruct the condensate of the vapor fog that is discharged, to prevent the condensate from being inhaled by the user and thus improve user experience.

[0070] The vaporizer of the disclosure provides the upper vaporizing seat and the base vaporizing seat which include rigid plastic material and soft sealing component. They can be integrally formed through an over-molding process by rubber coating during production. In such a case, it has reduced number of components and accessories, simplifies the production process, facilitates easy assembly, increases production efficiency, and facilitates production automation.INDUSTRIAL APPLICABILITY

[0071] All the above are merely preferred embodiments of the disclosure. The present invention is intended to cover all equivalent arrangements and modifications derived from the claims of the present invention.

Claims

1. An electronic cigarette vaporizer equipped with a soft vaporizing core, characterized by comprising a mouthpiece housing, a vaporization assembly fitted inside an inner wall of the mouthpiece housing, and a bottom cap for sealing a bottom portion of the mouthpiece housing, the vaporization assembly comprises an upper vaporizing seat, a soft vaporizing core, and a base vaporizing seat, wherein the upper vaporizing seat above and the base vaporizing seat below are connected with each other, a bottom portion of the upper vaporizing seat is provided with a vaporizing core cavity that is concave and extends upwards, the soft vaporizing core is accommodated in the vaporizing core cavity, the base vaporizing seat supports a bottom portion of the soft vaporizing core from below, the soft vaporizing core comprises a vaporizing core support, a heating element, and a soft liquid guiding element, the vaporizing core support has an upper flat surface and a lower flat surface and is provided with a support through hole in middle, the heating element comprises a sheet-like heating resistance provided with a conductive path, the heating resistance is disposed in the support through hole, and the soft liquid guiding element is disposed on an upper surface of the heating resistance.

2. The electronic cigarette vaporizer equipped with a soft vaporizing core according to claim 1, characterized in that, the soft vaporizing core further comprises a permeable sheet provided with permeation holes, and the permeable sheet is disposed between the soft liquid guiding element and the vaporizing core support.

3. The electronic cigarette vaporizer equipped with a soft vaporizing core according to claim 1, characterized in that, the soft liquid guiding element is made of at least one of materials including organic cotton, ceramic fiber cotton, glass fiber cotton, PP fiber, nylon fiber, non-woven fabric, and PET fiber.

4. The electronic cigarette vaporizer equipped with a soft vaporizing core according to claim 1, characterized in that, the heating element further comprises electrode contact disks connected with both ends of the heating resistance, the electrode contact disks are disposed on a lower flat surface of the vaporizing core support and positioned on two sides of the support through hole, and on two sides of the heating resistance and the electrode contact disks, a plurality of fixing claws are provided, which extend into an interior of the vaporizing core support.

5. The electronic cigarette vaporizer equipped with a soft vaporizing core according to claim 1, characterized in that, the upper vaporizing seat comprises an upper seat frame and an upper seat sealing component, the upper seat frame is provided at an upper portion with a discharge tube and a lower portion with a flat-shaped body, a sidewall of the flat-shaped body is fitted into the upper seat sealing component and then fitted into an inner wall of the mouthpiece housing, the vaporizing core cavity that is concave and extends upwards is provided at a bottom portion of the flat-shaped body, air outlet through holes are provided on two sides outside the vaporizing core cavity to communicate with two sides inside the discharge tube located above, and liquid inlet through holes are provided on two sides inside the vaporizing core cavity to communicate with an upper surface of the flat-shaped body at two sides outside the discharge tube.

6. The electronic cigarette vaporizer equipped with a soft vaporizing core according to claim 5, characterized in that, the mouthpiece housing is provided at an upper end with a mouthpiece opening and with a mouthpiece tube formed by an edge around the mouthpiece opening extending into the mouthpiece housing, the upper vaporizing seat further comprises a vapor channel sealing component connected between the discharge tube and the mouthpiece tube, a bottom portion of the vapor channel sealing component which is inserted in the discharge tube has a reduced outer diameter, and an inner annular groove is defined between the bottom portion of the vapor channel sealing component and an inner wall of the discharge tube.

7. The electronic cigarette vaporizer equipped with a soft vaporizing core according to claim 5, characterized in that, the flat-shaped body is provided with a liquid filling through hole which allows communication between upper and lower sides of the flat-shaped body, the upper seat sealing component comprises a portion provided on a sidewall of the flat-shaped body, a portion provided on a lower end face of the vaporizing core cavity, and a portion provided on an inner wall of the liquid filling through hole, and the upper seat frame made of a rigid plastic material and the upper seat sealing component made of a soft silicone rubber material are integrally formed through an over-molding process by rubber coating.

8. The electronic cigarette vaporizer equipped with a soft vaporizing core according to claim 4, characterized in that, the base vaporizing seat comprises columnar electrodes, a base seat frame above and a base seat sealing component below which are connected with each other, a sidewall of the base seat frame and a sidewall of the base seat sealing component are fitted in an inner wall of the mouthpiece housing, an upper end of the base seat frame is connected to a lower end of the upper vaporizing seat, each of the columnar electrodes is arranged to vertically extend through an interior of the base seat frame, with a top end of each of the columnar electrodes supporting and abutting on respective one of electrode contact disks.

9. The electronic cigarette vaporizer equipped with a soft vaporizing core according to claim 8, characterized in that, the base seat frame is provided with a vaporizing groove at a position below the soft vaporizing core, a bottom portion of the vaporizing groove is provided with a third air inlet hole, a lower end of the base seat frame is provided with a first air inlet groove extending upwards, the base seat sealing component is provided with a second air inlet hole at a position below the first air inlet groove, a second air inlet tube wall extends upwards from the second air inlet hole and above an upper end surface of the base seat sealing component, the second air inlet tube wall extends into the first air inlet groove, a first air gap is defined between an upper end of the second air inlet tube wall and a bottom portion of the first air inlet groove, a second air gap is defined between the second air inlet tube wall and the first air inlet groove, the base seat sealing component is provided with a second air inlet groove at a position below the third air inlet hole, and the second air inlet groove communicates the second air gap with the third air inlet hole.

10. The electronic cigarette vaporizer equipped with a soft vaporizing core according to claim 8, characterized in that, the base seat frame and the base seat sealing component are respectively provided with electrode holes for mounting the columnar electrodes, a bottom portion of the base seat sealing component is further provided with a PCB circuit board, the PCB circuit board is provided with electrode springs, and bottom ends of the columnar electrodes abut on the electrode springs, respectively.

Images