Electronic cigarette atomizer with a soft atomization core

Abstract

The present invention discloses an electronic cigarette atomizer with a soft atomization core, which comprises a mouthpiece shell, an atomization head assembly sleeved on the inner wall of the mouthpiece shell, and a bottom cover arranged at the bottom of the mouthpiece shell. The atomization head assembly includes an upper atomization seat, a soft atomization core and an atomization base. The upper atomization seat and the atomization base are connected up and down. An atomization core cavity is concavely arranged upward at the bottom of the upper atomization seat. The soft atomization core is received in the atomization core cavity. The atomization base upwardly supports the bottom of the soft atomization core. The soft atomization core includes an atomization core support, a heating element and a soft liquid guide. The atomization core support includes an upper plane, a lower plane and a support through hole arranged in the middle. The heating element includes a sheet-shaped heating resistor provided with a conduction path. The heating resistor is arranged in the support through hole. The soft liquid guide is arranged above the heating resistor. The beneficial effects are that the atomizer has sufficient liquid supply and large amount of smoke; has pure taste, good consistency, is not easy to generate burnt taste, and has a good use experience; and has low cost and high production efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic cigarette atomizers. More specifically, the present invention relates to an electronic cigarette atomizer with a soft atomization core. Background Art

[0002] An electronic cigarette generally includes a battery assembly and an atomizer. A battery for supplying power to the atomizer is provided in the battery assembly. The atomizer includes an atomization core, and the atomization core at least includes a liquid guide and a heating element. When the heating element is powered on, it can evaporate the atomization liquid into an aerosol for the user to inhale. The atomization liquid is the e-liquid to be atomized. As an atomization device for the atomization liquid, the electronic cigarette can heat and evaporate the atomization liquid stored in the electronic cigarette into an aerosol, aerosol, vapor, etc. for the user to inhale.

[0003] The atomization cores of existing electronic cigarette atomizers include a structure in which a liquid guide cotton rope is wound around a heating wire, and a structure of porous ceramics plus a bottom heating resistor. Among them, in the structure of the liquid guide cotton rope wound around the heating wire, due to the small cross-sectional area of the liquid guide cotton rope that can conduct the atomization liquid, the atomization amount during operation is small, and it is easy to leak liquid due to poor sealing between the atomization seat and the liquid guide cotton rope during high-temperature operation. For the structure of porous ceramics plus a bottom heating resistor, due to the existence of many disordered micropores in the porous ceramics, during long-term operation, macromolecules, microparticles, sugars, etc. contained in the e-liquid of the electronic cigarette are likely to aggregate and block in the micropores of the porous ceramics, and it is easy to produce a burnt smell at high temperature, resulting in a decrease in the amount of smoke when the user smokes, inconsistent smoking taste before and after, impure taste or even sucking out a burnt smell; in addition, the manufacturing process of porous ceramics is complex, the cost is high, and the production efficiency is low; and the composition of porous ceramics is complex, and it cannot be excluded that some components contain heavy metals. During long-term high-temperature operation, there is an inevitable risk of heavy metal precipitation.

[0004] For existing electronic cigarette atomizers, an air flow channel that is directly connected in the middle is generally adopted. The unatomized liquid droplets or the condensate condensed on the tube wall in the atomization liquid are likely to leak out from the air inlet hole of the bottom cover of the atomizer or be easily inhaled by the user, resulting in a poor user experience.

[0005] In addition, there are many atomization components and accessories in existing electronic cigarette atomizers, and the structure is complex, resulting in many process flows and low assembly efficiency in production, and it is not easy to realize the automation of production. Summary of the Invention

[0006] The object of the present invention is to overcome the deficiencies of the above background art and provide an electronic cigarette atomizer with a soft atomization core. The electronic cigarette atomizer with a soft atomization core has sufficient liquid supply, a large amount of smoke, a pure taste, and is not easy to produce a burnt smell; the material cost is low, the structure is simple, and the production efficiency is high.

[0007] The technical solution of the present invention is implemented as follows: An electronic cigarette atomizer with a soft atomization core includes a mouthpiece shell, an atomization head assembly sleeved on the inner wall of the mouthpiece shell, and a bottom cover provided at the bottom of the mouthpiece shell. The atomization head assembly includes an upper atomization seat, a soft atomization core, and a bottom atomization base. The upper atomization seat and the bottom atomization base are connected up and down. The bottom of the upper atomization seat is recessed upward to form an atomization core cavity. The soft atomization core is received in the atomization core cavity. The bottom atomization base upwardly supports the bottom of the soft atomization core. The soft atomization core includes an atomization core support, a heating element, and a soft liquid guide. The atomization core support includes an upper plane, a lower plane, and a support through hole provided in the middle. The heating element includes a sheet-shaped heating resistor provided with a conduction path. The heating resistor is provided in the support through hole. The soft liquid guide is provided on the upper surface of the heating resistor.

[0008] Preferably, the soft atomization core further includes a permeable thin sheet having permeation holes. The permeable thin sheet is provided between the soft liquid guide and the atomization core support.

[0009] Preferably, the constituent material of the soft liquid guide includes at least one of organic cotton, ceramic fiber cotton, glass fiber cotton, PP fiber, nylon fiber, non-woven fabric, and PET fiber.

[0010] Preferably, the heating element further includes electrode contact pads connected to both ends of the heating resistor. The electrode contact pads are provided on the lower plane of the atomization core support and on both sides of the support through hole. A plurality of fixing claws extending into the interior of the atomization core support are provided on both sides of the heating resistor and the electrode contact pads.

[0011] Preferably, the upper atomization seat includes an upper seat support and an upper seat seal. The upper seat support includes an air outlet pipe provided at the upper part and a flat body provided at the lower part. The side wall of the flat body is sleeved with the upper seat seal and then sleeved on the inner wall of the mouthpiece shell. The atomization core cavity is recessed upward at the bottom of the flat body. Air outlet through holes are provided on both outer sides of the atomization core cavity. The air outlet through holes communicate upward to both inner sides of the interior of the air outlet pipe. Liquid inlet through holes are provided on both inner sides of the interior of the atomization core cavity. The liquid inlet through holes communicate to the upper surface of the flat body and are located on both outer sides of the air outlet pipe.

[0012] Preferably, the mouthpiece shell includes a suction port provided at its upper end, and a suction port pipe extending from the edge of the suction port into the interior of the mouthpiece shell. The upper atomization seat further includes an airway seal. The airway seal is sleeved between the air outlet pipe and the suction port pipe. The bottom of the airway seal sleeved on the air outlet pipe is provided with an inner ring groove formed by a reduced outer diameter and the inner wall of the air outlet pipe.

[0013] Preferably, a liquid injection through hole communicating the upper and lower sides of the flat body is further provided on the flat body. The upper seat seal includes a part provided on the side wall of the flat body, a lower end face part of the atomization core cavity, and a part of the inner wall of the liquid injection through hole. The upper seat bracket and the upper seat seal are respectively made of a rigid plastic material and a soft silicone rubber material, and the two are integrally formed by a double-shot molding process.

[0014] Preferably, the atomization base includes a columnar electrode, a base bracket and a base seal connected up and down. The side walls of the base bracket and the base seal are sleeved on the inner wall of the mouthpiece shell. The upper end of the base bracket is connected to the lower end of the atomization upper seat. The columnar electrode vertically penetrates through the inside of the base bracket, and the top end of the columnar electrode supports and abuts against the electrode contact disk.

[0015] Preferably, an atomization groove is provided at the position of the base bracket below the soft atomization core. A third air inlet hole is provided at the bottom of the atomization groove. A first air inlet groove is provided upward at the lower end of the base bracket. A second air inlet hole is provided at the position of the base seal below the first air inlet groove. The second air inlet hole extends upward to form a second air inlet hole pipe wall higher than the upper end face of the base seal. The second air inlet hole pipe wall extends into the first air inlet groove. A first air inlet gap is provided between the upper end part of the second air inlet hole pipe wall and the bottom of the first air inlet groove. A second air inlet gap is provided between the second air inlet hole pipe wall and the first air inlet groove. A second air inlet groove is provided at the position of the base seal below the third air inlet hole. The second air inlet groove communicates the second air inlet gap and the third air inlet hole.

[0016] Preferably, the base bracket and the base seal are respectively provided with electrode holes for passing through the columnar electrode. A PCB circuit board is further provided at the bottom of the base seal. An electrode spring is provided on the PCB circuit board. The bottom end of the columnar electrode abuts against the electrode spring.

[0017] The beneficial effects of the present invention are as follows: The electronic cigarette atomizer with a soft atomization core is provided with a soft atomization core. The soft liquid conductor of the soft atomization core conducts the atomization liquid in the up and down directions, and the area for conducting and heating the atomization liquid is large, avoiding the disadvantages of the small conduction area of the liquid guide cotton rope for conducting the atomization liquid, the small atomization amount during operation, and the easy leakage of liquid at high temperatures. At the same time, the soft liquid conductor conducts the atomization liquid through a loose fiber structure without the need for micropores, avoiding the disadvantages that when the porous ceramic works, macromolecules, microparticles, sugars, etc. contained in the atomization liquid are prone to aggregation and blockage in the micropores of the porous ceramic, and it is prone to produce a burnt smell at high temperatures. It can maintain a large atomization amount, a consistent smoking taste, and a pure taste, avoiding sucking out a burnt smell and bringing a better user experience to users; since the soft raw material used for the soft liquid conductor has a low cost, does not require sintering, has a simple process and a simple structure, it is easy to assemble into the atomizer, which can greatly reduce costs and improve production efficiency; in addition, the composition materials of the soft liquid conductor are simple and do not contain heavy metal components, so under the condition of high-temperature operation, the soft atomization core has no risk of heavy metal precipitation.

[0018] For the atomizer of the present invention, its air intake passage has a multi-channel zigzag path structure, enabling the air entering from the outside to enter smoothly, while the condensate dripping into the atomization chamber is not easily leaked back from the bottom cover. In addition, an inverted inner ring groove is provided in the airway seal, which can be used to collect and block the condensate in the discharged aerosol, preventing the condensate from being inhaled into the user's mouth and bringing a good user experience to users.

[0019] For the atomizer of the present invention, the hard plastic parts and soft seals in the upper atomization seat and the lower atomization base can be integrally formed by the overmolding process during production, which can reduce components and accessories, simplify the production process flow during assembly, and improve production efficiency, and is also helpful for production automation. Description of the Drawings

[0020] Figure 1 It is a side view of the exploded structure of the electronic cigarette atomizer according to the embodiment of the present invention;

[0021] Figure 2 It is a three-dimensional view of the mouthpiece shell according to the embodiment of the present invention;

[0022] Figure 3 It is a side sectional view of the mouthpiece shell according to the embodiment of the present invention;

[0023] Figure 4 It is a side view of the exploded structure of the atomization head assembly according to the embodiment of the present invention;

[0024] Figure 5 It is a three-dimensional view of the exploded structure of the upper atomization seat according to the embodiment of the present invention;

[0025] Figure 6 Side cross-sectional view of the upper atomization seat according to an embodiment of the present invention;

[0026] Figure 7 Front cross-sectional view of the upper atomization seat according to an embodiment of the present invention;

[0027] Figure 8 Stereoscopic view of the upper atomization seat according to an embodiment of the present invention Figure 1 ;

[0028] Figure 9 Stereoscopic view of the upper atomization seat according to an embodiment of the present invention Figure 2 ;

[0029] Figure 10 Stereoscopic view of the soft atomization core according to an embodiment of the present invention;

[0030] Figure 11 Stereoscopic exploded view of the soft atomization core according to an embodiment of the present invention;

[0031] Figure 12 Stereoscopic view of the atomization core bracket and the heating element according to an embodiment of the present invention Figure 1 ;

[0032] Figure 13 Stereoscopic view of the atomization core bracket and the heating element according to an embodiment of the present invention Figure 2 ;

[0033] Figure 14 Stereoscopic exploded view of the atomization core bracket and the heating element according to an embodiment of the present invention;

[0034] Figure 15 Stereoscopic exploded view of the soft atomization core according to another embodiment of the present invention;

[0035] Figure 16 Stereoscopic exploded view of the atomization base according to an embodiment of the present invention;

[0036] Figure 17 Side cross-sectional view of the atomization base according to an embodiment of the present invention;

[0037] Figure 18 Front cross-sectional view of the atomization base according to an embodiment of the present invention;

[0038] Figure 19 Stereoscopic view of the base bracket according to an embodiment of the present invention Figure 1 ;

[0039] Figure 20 Stereoscopic view of the base bracket according to an embodiment of the present invention Figure 2 ;

[0040] Figure 21 Stereoscopic view of the base seal according to an embodiment of the present inventionFigure 1 ;

[0041] Figure 22 is a perspective view of the base seal of the embodiment of the present invention Figure 2 ;

[0042] Figure 23 is a perspective view of the bottom cover of the embodiment of the present invention;

[0043] Figure 24 is a side sectional view of the electronic cigarette atomizer of the embodiment of the present invention;

[0044] Figure 25 is a front sectional view of the electronic cigarette atomizer of the embodiment of the present invention. Detailed implementation manners

[0045] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0046] For the convenience of description in the text, as Figure 1 shown, the suction port of the electronic cigarette atomizer with a soft atomization core is placed vertically upward, and the descriptions of "upper, lower, upper part, lower part, upper end, lower end, above, below, upward, downward" and the like related to each component herein refer to the up and down positional relationship when the suction port of the electronic cigarette atomizer with a soft atomization core is placed vertically upward.

[0047] Embodiment

[0048] As Figure 1 shown, an electronic cigarette atomizer with a soft atomization core is composed of a mouthpiece shell 100, an atomization head assembly 200 sleeved on the inner wall of the mouthpiece shell 100, and a bottom cover 300 plugged at the bottom of the mouthpiece shell 100.

[0049] As Figures 1 - 3 shown, the mouthpiece shell 100 includes a suction port 1001 provided at a position deviating from the central axis at the upper end, a suction port pipe 1002 vertically extending downward from the edge of the suction port 1001 into the mouthpiece shell, the bottom of the mouthpiece shell 100 has an opening 1003, the atomization head assembly 200 is sleeved into the inner wall of the mouthpiece shell 100 upward from the opening 1003, and the bottom cover 300 is sleeved on the outer wall of the opening 1003.

[0050] As Figure 4 shown, the atomization head assembly 200 includes an atomization upper seat 10, a soft atomization core 20, and an atomization base 30. The atomization upper seat 10 and the atomization base 30 are connected up and down. The soft atomization core 20 is arranged inside between the atomization upper seat 10 and the atomization base 30. The bottom of the atomization upper seat 10 is recessed upward to form an atomization core cavity 1210, the soft atomization core 20 is received in the atomization core cavity 1210, and the atomization base 30 supports the soft atomization core 20 upward.

[0051] As shown Figures 5 - 9 in FIG. 1, the upper atomizing seat 10 is composed of an airway seal 11, an upper seat bracket 12 and an upper seat seal 13. Among them, an air outlet pipe 120 is provided at the upper part of the upper seat bracket 12, and a flat body 121 is provided at the lower part. The cross-sectional area of the air outlet pipe 120 is smaller than that of the flat body 121. After the side wall of the flat body 121 is sleeved with the upper seat seal 13, it is sleeved on the inner wall of the mouthpiece shell 100. A groove-shaped atomizing core cavity 1210 is provided upward at the bottom of the flat body 121. The atomizing core cavity 1210 is used to accommodate the soft atomizing core 20. Air outlet through holes 1211 are provided on both outer sides of the atomizing core cavity 1210, and the air outlet through holes 1211 communicate upward with both inner sides of the air outlet pipe 120. Liquid inlet through holes 1212 are provided on both inner sides of the atomizing core cavity 1210, and the liquid inlet through holes 1212 communicate with the upper surface of the flat body 121 and are located on both outer sides of the air outlet pipe 120. A liquid injection through hole 1213 is also provided on the flat body 121. The liquid injection through hole 1213 communicates the upper and lower sides of the flat body 121. The liquid injection through hole 1213 is used as a channel for injecting atomizing liquid during assembly, and is blocked by the plunger 313 described below after the atomizing liquid is injected.

[0052] The upper end of the air outlet pipe 120 is connected to the suction port pipe 1002 of the mouthpiece shell 100. The airway seal 11 is sleeved between the air outlet pipe 120 and the suction port pipe 1002 for sealing connection therebetween. The airway seal 11 can be made of silicone rubber material. The outer diameter of the part of the airway seal 11 sleeved into the air outlet pipe 120 is reduced to form an inverted inner ring groove 110 with the inner wall of the air outlet pipe 120. The inner ring groove 110 can be used to collect and block the condensate in the aerosol discharged through the air outlet pipe 120, and can prevent the condensate from being inhaled into the user's mouth. The upper seat seal 13 is provided on the side wall of the flat body 121, the lower end face of the atomizing core cavity 1210 and the inner wall of the liquid injection through hole 1213 for sealing, that is, the upper seat seal 13 includes a part provided on the side wall of the flat body 121, a part of the lower end face of the atomizing core cavity 1210 and a part of the inner wall of the liquid injection through hole 1213.

[0053] In the present invention, the upper seat bracket 12 is made of a rigid plastic material, and the upper seat seal 13 is made of a soft silicone rubber material. The two are integrally formed by a double injection molding process during production, so that the components and accessories can be reduced, the production process flow can be reduced and the assembly can be simplified during assembly, the production efficiency can be improved, and it is helpful for production automation.

[0054] As shown Figures 10 - 14As shown in the figure, the soft atomization core 20 includes an atomization core bracket 21, a heating element 22, and a soft liquid guide 23. The atomization core bracket 21 includes an upper plane 211, a lower plane 212, and a bracket through hole 210 provided in the middle. The heating element 22 includes a sheet-shaped heating resistor 221 provided with a conductive path of a certain shape. The heating resistor 221 is disposed in the bracket through hole 210. In this embodiment, the heating resistor 221 is flush or substantially flush with the upper plane 211 of the atomization core bracket 21. The soft liquid guide 23 is disposed above the heating resistor 221, and the bottom of the soft liquid guide 23 abuts against the heating resistor 221, facilitating the atomization liquid contained in the soft liquid guide 23 to contact the heating resistor 221, so that the heating resistor 221 directly heats the atomization liquid and evaporates it into a mist.

[0055] In this embodiment, the soft liquid guide 23 is made of organic cotton and is formed into a block with a certain adhesive force and not easily dispersed, that is, the soft liquid guide 23 is composed of a block. In other embodiments, the constituent material of the soft liquid guide 23 can also be one or a mixture of ceramic fiber cotton, glass fiber cotton, PP fiber, nylon fiber, non-woven fabric, PET fiber, etc. These materials are all soft materials. Since the above raw materials used for the soft liquid guide 23 have low cost, do not require sintering, have a simple process and a simple structure, and are easy to assemble into the atomizer, the cost can be greatly reduced and the production efficiency can be improved. In addition, the composition of the soft liquid guide 23 is simple and does not contain heavy metal components. Therefore, under the condition of high-temperature operation, the soft atomization core has no risk of heavy metal precipitation.

[0056] When the soft liquid guide 23 works, it conducts the atomization liquid from top to bottom. Its block structure makes the area of conducting and heating the atomization liquid large, avoiding the disadvantages of the small conduction area of the liquid guide cotton rope for conducting the atomization liquid, the small atomization amount during operation, and the easy leakage of liquid during high-temperature operation. The soft liquid guide 23 uses the above-mentioned soft cotton-like materials, and these materials all have a loose fiber structure. The atomization liquid is conducted through the gaps between the fiber structures and does not need to be conducted through micropores. Therefore, the liquid conduction is fast and a large atomization amount can be maintained. Compared with hard porous ceramics, it avoids the disadvantages that macromolecules, microparticles, sugars, etc. contained in the atomization liquid are easy to aggregate and block in the micropores and are easy to produce a burnt smell at high temperatures.

[0057] Among them, the heating element 22 further includes electrode contact pads 222 connected to both ends of the heating resistor 221. The electrode contact pads 222 are disposed on the lower plane of the atomization core bracket 21 and on both sides of the bracket through hole 210. The electrode contact pads 222 are used for the columnar electrode 33 to abut thereon for power supply.

[0058] On both sides of the heating resistor 221 and the electrode contact pad 222, there are several fixing claws 223 extending into the inside of the atomizing core bracket 21. The fixing claws 223 are used to fix more firmly on the atomizing core bracket 21. In the present invention, the atomizing core bracket 21 can be made of heat-resistant plastic material. The heating element 22 can be placed in a mold before the atomizing core bracket 21 is injection-molded to form an integral body with the atomizing core bracket 21. In particular, the fixing claws 223 are formed inside the atomizing core bracket 21, making the two more firmly connected and preventing the heating element 22 from detaching from the atomizing core bracket.

[0059] In this embodiment, the shape of the conduction path of the heating resistor 221 is several repeated S shapes. In other embodiments, it can also be set to any other shape, not limited to the S shape. The heating resistor 21 is usually composed of a metal heating resistor. The soft conductive liquid 23 can absorb, store, and conduct the atomizing liquid. The heating resistor 221 is closely attached to the lower part of the soft conductive liquid 23. When the heating resistor 221 is powered on, it will generate heat, heating, evaporating, and atomizing the atomizing liquid at the lower part of the soft conductive liquid 23 into a mist, and the mist is dispersed downward through the bracket through-hole 210.

[0060] As Figure 15 shown, in another embodiment, the soft atomizing core 20 further includes a permeable thin sheet 24 having permeation holes (not shown in the figure). The thickness of the permeable thin sheet 24 is set to 0.5 mm to 2 mm. The permeable thin sheet 24 is disposed between the soft conductive liquid 23 and the bracket 21. Among them, the diameter of the permeation holes of the permeable thin sheet 24 can be set to 50 μm to 2 mm. In this embodiment, the permeable thin sheet 24 plays a role in upwardly supporting the soft conductive liquid 23, preventing the soft conductive liquid 23 from deforming and sagging downward under long-term high-temperature operation. At the same time, it also slowly releases the atomizing liquid stored in the soft conductive liquid 23 to the heating resistor 221 through the permeation holes, so that the evaporation amount and permeation amount of the atomizing liquid reach a balance during operation, and when there is no atomization, the atomizing liquid passing through the permeation holes forms a surface tension to reach another balance, preventing the atomizing liquid from dripping and leaking. The permeable thin sheet 24 can be made very thin, and the permeable thin sheet 24 can be composed of materials such as heat-resistant and non-conductive materials such as plastic, silica gel, porous ceramics, and diatomaceous earth.

[0061] As Figures 16 - 25 shown, the atomizing base 30 is composed of a columnar electrode 33, a base bracket 31 and a base seal 32 connected up and down, and a PCB circuit board 34. The side wall of the base bracket 31 and the side wall of the base seal 32 are sleeved on the inner wall of the mouthpiece shell 100. The upper end of the base bracket 31 is connected to the lower end of the atomizing upper seat 10. The columnar electrode 33 is vertically disposed inside the base bracket 31. The top end of the columnar electrode 33 supports and abuts against the electrode contact pad 222. The columnar electrode 33 plays a role in upwardly supporting the soft atomizing core 20, and at the same time abuts against the electrode contact pad 222 for supplying power to the heating resistor 221.

[0062] The base bracket 31 is provided with an atomization groove 310 below the soft atomization core 20. A third air inlet hole 311 is provided at the bottom of the atomization groove 310. One side of the lower end of the base bracket 31 is provided with an upward first air inlet groove 312. The base seal 32 is provided with a second air inlet hole 321 below the first air inlet groove 312. The second air inlet hole 321 extends upward to be provided with a second air inlet hole pipe wall 3210 that is higher than the upper end surface of the base seal 32. The second air inlet hole pipe wall 3210 extends into the first air inlet groove 312. A first air inlet gap 3121 is provided between the upper end portion of the second air inlet hole pipe wall 3210 and the bottom of the first air inlet groove 312. A second air inlet gap 3122 is provided between the second air inlet hole pipe wall 3210 and the first air inlet groove 312. The base seal 32 is provided with a second air inlet groove 322 below the third air inlet hole 311. The second air inlet groove 322 communicates the second air inlet gap 3122 and the third air inlet hole 311.

[0063] The base bracket 31 and the base seal 32 are respectively provided with electrode holes 330 for passing through columnar electrodes. The bottom of the base seal 32 is further provided with a PCB circuit board mounting groove 340. The PCB circuit board 34 is mounted in the PCB circuit board mounting groove 340. An electrode spring 341 is provided on the PCB circuit board 34. The bottom end of the columnar electrode 33 abuts against the electrode spring 341. A control chip may also be provided on the PCB circuit board 34, including an anti-counterfeiting chip, a child-proof use chip, etc.

[0064] The base bracket 31 is provided with a protruding plunger 313 upward. The plunger 313 is used to plug into the liquid injection through hole 1213 after liquid injection to prevent liquid leakage. The base bracket 31 is further provided with 2 first fixing holes 314. The bottom of the base bracket 31 is further provided with 4 first fixing posts 315. The upper part of the base seal 32 is further provided with 2 second fixing posts 322 and 4 second fixing blind holes 323. The second fixing posts 322 pass through the first fixing holes 314 upward for fixing, so that the base bracket 31 and the base seal 32 are positioned and installed and fixed. The first fixing posts 315 are installed into the second fixing blind holes 323 to position and install and fix the base bracket 31 and the base seal 32.

[0065] As Figures 23 - 25 shown, two PCB electrodes (not shown in the figure) are provided below the PCB circuit board. The bottom cover 300 is provided with bottom cover electrode holes 3001 corresponding to the positions of the PCB electrodes. The PCB electrodes are exposed from the bottom cover electrode holes 3001 so that the electrodes of the e-cigarette battery can abut against the PCB electrodes. The bottom cover 300 is further provided with a plurality of first air inlet holes 3002 corresponding to the position of the second air inlet hole 321.

[0066] As Figure 24 、 Figure 25As shown, the inside of the nozzle housing 100 has a cavity. After the atomizer head assembly 200 is assembled into the nozzle housing 100, the cavity formed between the inner wall of the nozzle housing 100, the upper seat bracket 12 and the suction port tube 1002 serves as the liquid storage chamber 40 for storing the atomizing liquid.

[0067] As Figure 24 , Figure 25 shown, when the electronic cigarette atomizer of the present invention works, the user inhales through the suction port 1001, a negative pressure is generated inside the atomizer, and the outside air enters the second intake hole 321 and the second intake hole pipe wall 3210 through the first intake hole 3002 of the bottom cover of the atomizer, and then enters the first intake gap 3121 in the first intake groove 312. After the air enters the first intake gap 3121, it turns back downward and enters the second intake gap 3122, and then laterally enters the second intake groove 322 of the base seal 34, and then enters the third intake hole 311 upward and then enters the atomization groove 310 immediately. At this time, the atomizing liquid in the liquid storage chamber 40 has flowed downward through the liquid inlet through holes 1212 on both sides of the outside of the air outlet pipe 120 and entered the soft atomization core 20. The heating resistor 221 is energized to generate heat, and the atomizing liquid at the lower part of the soft liquid guide 23 is heated, evaporated and atomized into a mist. The mist diffuses downward and enters the atomization groove 310 and is driven by the incoming air, flows upward through the air outlet through hole 1211 to the inside of the air outlet pipe 120, and then flows out through the suction port tube 1002 and the suction port 1001, and is finally inhaled into the user's mouth. The direction and path of the above air flow are indicated by the continuous hollow arrows in Figure 24 .

[0068] The internal structure of the electronic cigarette atomizer of the present invention is provided with an intake passage including the first intake hole 3002, the second intake hole 321, the first intake gap 3121, the second intake gap 3122, the second intake groove 322, the third intake hole 311 and the atomization groove 310. The intake passage has a multi-folded path structure, so that the outside air can enter smoothly, but the condensate dripping into the atomization chamber is not easy to flow downward and leak out from the first intake hole 3002 in the reverse direction.

[0069] As described above, for the electronic cigarette atomizer with a soft atomization core of the present invention, since the soft liquid guide uses raw materials with low cost, does not require sintering, has a simple process and a simple structure, it is easy to be assembled into the atomizer, which can improve production efficiency; the soft liquid guide conducts the atomization liquid up and down, and has a large area for conducting and heating the atomization liquid, avoiding the disadvantages of the small conduction area of the liquid guide cotton rope for conducting the atomization liquid, the small atomization amount during operation, and the easy leakage of liquid at high temperature. At the same time, the soft liquid guide conducts the atomization liquid through a loose fiber structure and does not need to conduct through micropores, avoiding the disadvantages that when a porous ceramic works, macromolecules, microparticles, sugars, etc. contained in the atomization liquid are easy to aggregate and block in the micropores of the porous ceramic, and it is easy to produce a burnt smell at high temperature. It can maintain a large atomization amount, consistent taste before and after, and pure taste, avoiding sucking out a burnt smell and bringing a better user experience to users; since the soft raw materials used in the soft liquid guide have low cost, do not require sintering, have a simple process and a simple structure, it is easy to be assembled into the atomizer, which can greatly reduce costs and improve production efficiency; in addition, the composition materials of the soft liquid guide are simple and do not contain heavy metal components, so there is no risk of heavy metal precipitation under the condition of high-temperature operation of the soft atomization core.

[0070] For the atomizer of the present invention, its air intake passage has a multi-folded path structure, enabling the air entering from the outside to enter smoothly, while the condensate dripping into the atomization chamber is not easily leaked back from the bottom cover. In addition, an inverted inner ring groove is provided in the airway seal, which can be used to collect and block the condensate in the discharged aerosol, preventing the condensate from being inhaled into the user's mouth and bringing a good user experience to the user.

[0071] In the atomizer of the present invention, the hard plastic parts and soft seals in the upper atomization seat and the lower atomization seat can be integrally formed by a double injection molding process during production, which can reduce components and accessories, simplify the production process flow and assembly in the assembly, improve production efficiency, and contribute to production automation.

[0072] The above description is only the preferred embodiment of the present invention, and the above specific embodiments are not limitations to the present invention. Within the scope of the technical idea of the present invention, various deformations and modifications may occur. Any retouching, modification or equivalent replacement made by those of ordinary skill in the art according to the above description shall fall within the scope protected by the present invention.

Claims

1. An electronic cigarette atomizer with a soft atomization core, characterized in that: It includes a nozzle shell, an atomization head assembly sleeved on the inner wall of the nozzle shell, and a bottom cover provided at the bottom of the nozzle shell. The atomization head assembly includes an atomization upper seat, a soft atomization core, and an atomization base. The atomization upper seat and the atomization base are connected up and down. The bottom of the atomization upper seat is recessed upward to form an atomization core cavity. The soft atomization core is received in the atomization core cavity. The atomization base upwardly supports the bottom of the soft atomization core. The soft atomization core includes an atomization core support, a heating element, and a soft liquid guide. The atomization core support includes an upper plane, a lower plane, and a support through hole provided in the middle. The heating element includes a sheet-shaped heating resistor provided with a conduction path. The heating resistor is provided in the support through hole. The soft liquid guide is provided above the heating resistor; The atomization base includes a columnar electrode, a base support and a base seal connected up and down. The side wall of the base support and the side wall of the base seal are sleeved on the inner wall of the nozzle shell. The upper end of the base support is connected to the lower end of the atomization upper seat. The columnar electrode vertically penetrates through the inside of the base support; The base support is provided with an atomization groove at a position below the soft atomization core. A third air inlet hole is provided at the bottom of the atomization groove. The lower end of the base support is provided with a first air inlet groove upward. The base seal is provided with a second air inlet hole at a position below the first air inlet groove. The second air inlet hole extends upward to form a second air inlet hole tube wall higher than the upper end face of the base seal. The second air inlet hole tube wall extends into the first air inlet groove. A first air inlet gap is provided between the upper end portion of the second air inlet hole tube wall and the bottom of the first air inlet groove. A second air inlet gap is provided between the second air inlet hole tube wall and the first air inlet groove. The base seal is provided with a second air inlet groove at a position below the third air inlet hole. The second air inlet groove communicates the second air inlet gap and the third air inlet hole.

2. The electronic cigarette atomizer with a soft atomization core according to claim 1, characterized in that: The soft atomization core further includes a permeable thin sheet having permeation holes. The permeable thin sheet is provided between the soft liquid guide and the atomization core support.

3. The electronic cigarette atomizer with a soft atomization core according to claim 1, characterized in that: The constituent materials of the soft liquid guide include at least one of organic cotton, ceramic fiber cotton, glass fiber cotton, PP fiber, nylon fiber, non-woven fabric, and PET fiber.

4. The electronic cigarette atomizer with a soft atomization core according to claim 1, characterized in that: The heating element further includes electrode contact pads connected to both ends of the heating resistor. The electrode contact pads are provided on the lower plane of the atomization core support and on both sides of the support through hole. A plurality of fixing claws extending into the inside of the atomization core support are provided on both sides of the heating resistor and the electrode contact pads.

5. The electronic cigarette atomizer with a soft atomization core according to claim 1, characterized in that: The atomization upper seat includes an upper seat support and an upper seat seal. The upper seat support includes an air outlet pipe provided at the upper part and a flat body provided at the lower part. The side wall of the flat body is sleeved with the upper seat seal and then sleeved on the inner wall of the nozzle shell. The atomization core cavity is recessed upward at the bottom of the flat body. Air outlet through holes are provided on both outer sides of the atomization core cavity. The air outlet through holes communicate upward to both inner sides of the air outlet pipe. Liquid inlet through holes are provided on both inner sides of the atomization core cavity. The liquid inlet through holes communicate to the upper surface of the flat body and are located on both outer sides of the air outlet pipe.

6. The electronic cigarette atomizer with a soft atomization core according to claim 5, characterized in that: The nozzle housing includes a suction port provided at its upper end, and a suction port pipe extending from the edge of the suction port into the interior of the nozzle housing. The upper atomization seat further includes an airway seal, which is sleeved between the outlet pipe and the suction port pipe. The airway seal is sleeved at the bottom of the outlet pipe and is provided with an inner ring groove formed by a reduced outer diameter and the inner wall of the outlet pipe.

7. The electronic cigarette atomizer with a soft atomization core according to claim 5, characterized in that: The flat body is further provided with a liquid injection through hole communicating the upper and lower sides of the flat body. The upper seat seal includes a part provided on the side wall of the flat body, a part of the lower end face of the atomization core cavity, and a part of the inner wall of the liquid injection through hole. The upper seat bracket and the upper seat seal are respectively made of a hard plastic material and a soft silicone rubber material, and the two are integrally formed by a double-shot molding process.

8. The electronic cigarette atomizer with a soft atomization core according to claim 1, characterized in that: The base bracket and the base seal are respectively provided with electrode holes for passing through the columnar electrode. The bottom of the base seal is further provided with a PCB circuit board, and an electrode spring is provided on the PCB circuit board. The bottom end of the columnar electrode abuts against the electrode spring.

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