WO2023005029A1 - Electronic atomization device, atomizer and atomization assembly thereof - Google Patents

Abstract

An electronic atomization device (300), an atomizer (100) and an atomization assembly (30) thereof. The atomization assembly (30) comprises: a porous substrate (32) comprising an atomizing surface and an airflow channel (320) penetrating through the porous substrate (32), the airflow channel (320) extending to the atomizing surface; and a heating element (34) provided on the atomizing surface, wherein the heating element (34) comprises a first heating element (341) and a second heating element (343) arranged in parallel, and the first heating element (341) and the second heating element (343) cooperate to surround the airflow channel (320). By arranging the first heating element (341) and the second heating element (342) in parallel, the provided atomization assembly (30) can increase the distance between two connecting points of the first heating element (341) and the second heating element (343), thereby avoiding the defect that the integrated heating element cannot be connected by means of an ejector pin because two electrodes are relatively close to each other.

Description

Electronic atomization device, atomizer and atomization components thereof

This application claims the priority of the PCT patent application filed on July 30, 2021 with the application number PCT/CN2021/109806 and the title of the invention is "electronic atomization device, atomizer and its atomization components", which passed All references are incorporated into this application.

【Technical field】

The present application relates to the technical field of atomization, in particular to an electronic atomization device, an atomizer and an atomization component thereof.

【Background technique】

The electronic atomization device includes an atomization component and a power supply component, and the power supply component supplies power to the atomization component. When the atomization component is atomized, it transmits the liquid from the liquid storage chamber to the surface of the heater through the porous medium, and the liquid is heated by the heater to vaporize into an aerosol that is sucked into the mouth.

In the existing atomization components, the porous medium mostly adopts a ceramic substrate, and the heater mostly adopts a heating film, and the heating film is arranged on the ceramic substrate. However, because most of the heating films are serial heating films, the distance between the two electrodes of the heating film is set on the ceramic substrate is relatively close, resulting in that the thimble connection cannot be used when the heating film is electrically connected to the power supply component.

【Content of invention】

The present application mainly provides an electronic atomization device, an atomizer and an atomization component thereof, so as to solve the problem that a thimble connection cannot be used when the heating film is electrically connected to a power supply component.

In order to solve the above technical problems, a technical solution adopted by the present application is to provide an atomization group. The atomization component includes: a porous substrate, the porous substrate includes an atomization surface and an airflow channel passing through the porous substrate, and the airflow channel extends to the atomization surface; a heating element is arranged on the atomization surface ; Wherein, the heating element includes a first heating body and a second heating body arranged in parallel, and the first heating body and the second heating body cooperate to surround the airflow channel.

In some embodiments, the heating element further includes a first electrode and a second electrode arranged at intervals; the first heating element and the second heating element are both electrically connected to the first electrode and the second electrode. between the electrodes.

In some embodiments, the first electrode and the second electrode are arranged axially symmetrically.

In some embodiments, both the first electrode and the second electrode extend from the outer wall of the porous matrix to the gas flow channel.

In some embodiments, the inner sidewall of the airflow channel is provided with capillary grooves, the capillary grooves extend to the atomizing surface, the porous matrix has honeycomb pores, and the capillary force of the capillary grooves is smaller than that of the Capillary forces in honeycomb pores.

In some embodiments, the porous matrix includes a first end surface and a second end surface opposite to each other, and the gas flow channel and the capillary groove extend from the first end surface to the second end surface, wherein the first The end face is the atomization face.

In some embodiments, the porous matrix further includes an outer wall surface disposed between the first end surface and the second end surface, the outer wall surface is a liquid-absorbing surface; and/or

The second end surface is a liquid-absorbing surface.

In some embodiments, the porous matrix is cylindrical.

In some embodiments, the cross-section of the capillary groove along the axial direction of the airflow channel is polygonal or arc-shaped.

In some embodiments, the capillary groove includes a first groove body and a second groove body communicating with the first groove body in the depth direction, and the second groove body is arranged between the air flow channel and the first groove body. between tanks;

Wherein, the maximum width of the second groove body along the circumferential direction of the airflow channel is smaller than the maximum width of the first groove body along the circumferential direction of the airflow channel.

In some embodiments, the first groove body is an arc groove, and the second groove body is a rectangular groove, so that the cross-section of the capillary groove along the axial direction of the airflow channel is Ω-shaped.

In some embodiments, the width of the second groove along the circumference of the airflow channel is greater than or equal to 0.57mm and less than or equal to 0.86mm.

In some embodiments, the maximum width of the first slot body along the circumferential direction of the airflow channel is greater than or equal to 0.69 mm and less than or equal to 1.03 mm.

In some embodiments, the depth of the second groove along the radial direction of the airflow channel is greater than or equal to 0.92mm and less than or equal to 1.8mm.

In some embodiments, the width of the opening of the second groove located in the airflow channel is smaller than the hydraulic diameter of the airflow channel.

In some embodiments, the capillary groove has a first draft angle from the first end surface to the second end surface, and the cross section of the capillary groove along the axial direction of the airflow channel is defined by the first One end gradually increases toward the second end surface.

In some embodiments, the first draft angle is in the range of 1 degree to 3 degrees.

In some embodiments, the airflow channel has a second draft angle from the first end surface to the second end surface, and the radial dimension of the airflow channel on the first end surface is smaller than that of the airflow channel on the first end surface. The radial dimension of the second end face.

In some embodiments, the second draft angle is in the range of 1 degree to 3 degrees.

In some embodiments, a plurality of capillary grooves are provided, and the first heating element and the second heating element each include a plurality of surrounding parts connected in sequence, and each surrounding part is provided corresponding to one of the capillary grooves. .

In some embodiments, a tooth portion is formed between adjacent capillary grooves, and the connecting end between the two surrounding portions is disposed on the tooth portion.

In some embodiments, a positioning part is also included, and the positioning part is arranged at an end of the porous matrix away from the atomizing surface.

In order to solve the above technical problems, another technical solution adopted by the present application is to provide an atomizer. The atomizer includes a liquid storage bin for storing an aerosol-generating substrate and the above-mentioned atomization assembly, the porous substrate is in fluid communication with the liquid storage bin, and the heating element is used for heating and atomizing the porous The substrate is an aerosol-generating substrate.

In order to solve the above technical problems, another technical solution adopted by the present application is to provide an electronic atomization device. The electronic atomization device includes a power supply and the aforementioned atomizer, the power supply is connected to the atomizer and supplies power to the atomizer.

The beneficial effects of the present application are: different from the prior art, the present application discloses an electronic atomization device, an atomizer and an atomization assembly thereof. By setting the first heating body and the second heating body in parallel on the porous substrate, the distance between the two connection points of the first heating body and the second heating body is increased, and the integrated heating body is avoided Nearly can not use the defect of thimble connection.

【Description of drawings】

In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present application. For those of ordinary skill in the art, other drawings can also be obtained according to these drawings without creative work, wherein:

Fig. 1 is a schematic structural diagram of an electronic atomization device provided in the first embodiment of the present application;

Fig. 2 is a schematic structural diagram of the atomizer in the electronic atomization device shown in Fig. 1;

Fig. 3 is a schematic cross-sectional structural view of the atomizer shown in Fig. 2;

Fig. 4 is a schematic structural view of the atomization assembly in the atomizer shown in Fig. 2;

Fig. 5 is a schematic structural view of the first end face of the atomization assembly shown in Fig. 4;

Fig. 6 is a schematic diagram of labeling of the first end face of the porous matrix shown in Fig. 5;

Fig. 7 is a schematic side view of the atomization assembly shown in Fig. 4;

Fig. 8 is a schematic cross-sectional structure diagram of the atomization assembly shown in Fig. 7 along the viewing direction AA;

Fig. 9 is a schematic structural view of the second end surface of the atomization assembly shown in Fig. 4;

Fig. 10 is a schematic cross-sectional structural view of the atomizer of the electronic atomization device provided by the second embodiment of the application;

Fig. 11 is a schematic view of the structure of the atomization assembly in the atomizer shown in Fig. 10;

Fig. 12 is a schematic structural view of the first end face of the atomization assembly shown in Fig. 11;

Fig. 13 is a structural schematic diagram of another viewing angle of the atomization assembly in the atomizer shown in Fig. 10;

Fig. 14 is a schematic structural view of the second end surface of the atomization assembly shown in Fig. 13 .

【Detailed ways】

The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

The terms "first", "second", and "third" in the embodiments of the present application are used for description purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Thus, features defined as "first", "second", and "third" may explicitly or implicitly include at least one of these features. In the description of the present application, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined. Furthermore, the terms "include" and "have", as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but optionally also includes unlisted steps or units, or optionally further includes For other steps or units inherent in these processes, methods, products or devices.

Reference herein to an "embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application. The occurrences of this phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is understood explicitly and implicitly by those skilled in the art that the embodiments described herein can be combined with other embodiments.

This application provides an electronic atomization device 300, refer to Figure 1 to Figure 3, Figure 1 is a schematic structural diagram of the electronic atomization device provided in the first embodiment of the application, Figure 2 is the fog in the electronic atomization device shown in Figure 1 The structure schematic diagram of the atomizer, Fig. 3 is the cross-sectional structural schematic diagram of the atomizer shown in Fig. 2 .

As shown in FIG. 1 , the electronic atomization device 300 can be used for atomizing liquid substrates. As shown in FIG. 1 , the electronic atomization device 300 includes an interconnected atomizer 100 and a power supply 200. The atomizer 100 is used to store a liquid base and atomize the liquid base to form an aerosol that can be inhaled by the user. The substrate may be a nutrient solution or a medicinal solution, and the power supply 200 is used to supply power to the atomizer 100 so that the atomizer 100 can atomize the liquid substrate to form an aerosol.

The atomizer 100 includes a liquid storage bin 10, an atomizing seat 20, an atomizing assembly 30 and a base 40, wherein the atomizing assembly 30 is arranged between the liquid storage bin 10 and the atomizing seat 20, and the atomizing seat 20, the atomizing Both the battery assembly 30 and the base 40 are accommodated in the liquid storage bin 10 .

The liquid storage bin 10 is cylindrical with one end closed. The liquid storage bin 10 is provided with a liquid storage chamber 12 and an air guide tube 14 located in the liquid storage chamber 12. One end of the air guide tube 14 is connected to the closed end of the liquid storage bin 10 and passes through The closed end communicates with the outside. Wherein, the liquid storage cavity 12 is used to store the liquid matrix, and the airway 14 is used to lead out the aerosol formed after atomization, which can be introduced into the oral cavity of the user.

The atomizing seat 20 is connected to the liquid storage chamber 10 from the open end of the liquid storage chamber 10 to cover the liquid storage chamber 12 and prevent the liquid substrate stored in the liquid storage chamber 12 from leaking. The atomizing seat 20 can cover the liquid storage chamber 12 by inserting a sealing sleeve or a sealing ring at one end into the open end of the liquid storage chamber 10; The open end of the liquid tank 10 is not specifically limited in this application.

Wherein, the atomizing assembly 30 is disposed between the liquid storage bin 10 and the atomizing seat 20 . One end of the atomization assembly 30 is fixed to the atomization seat 20 , and the other end is relatively fixed to the air duct 14 .

Specifically, the atomization seat 20 is provided with an assembly hole 21 fitted with one end of the atomization assembly 30; the atomizer 100 also includes an adapter sleeve 50 and a seal 52, and the seal 52 is assembled on the adapter sleeve 50 One end of the adapter sleeve 50 is sleeved on one end of the air duct 14, the other end of the adapter sleeve 50 is sleeved on the other end of the atomization assembly 30, and the seal 52 is sealed between the air guide tube 14 and the adapter sleeve. between the cartridges 50 , and the seal 52 is also sealed between the atomization assembly 30 and the adapter sleeve 50 .

One end of the atomization assembly 30 is assembled in the assembly hole 21 on the atomization seat 20, and the other end is connected to the air guide tube 14. The atomization assembly 30 is provided with an air flow channel 320, and the air flow channel 320 communicates with the air guide tube 14. After atomization The formed aerosol is discharged through the airflow channel 320 and the air duct 14 .

The base 40 covers the open end of the liquid storage bin 10, the base 40 can be connected with the atomization seat 20 and/or the liquid storage bin 10, and an atomization cavity 24 is formed between the base 40 and the atomization seat 20, and the atomization The end surface of the assembly 30 facing the base 40 is located in the atomization chamber 24 , and the air flow channel 320 communicates with the atomization chamber 24 , and the atomization assembly 30 atomizes the liquid substrate in the atomization chamber 24 to form an aerosol.

The base 40 is also provided with an air inlet 41 , the air inlet 41 communicates with the atomization chamber 24 , and the air inlet 41 is used to introduce external air into the atomization chamber 24 . Specifically, when the user is inhaling, external air enters the atomization chamber 24 from the air inlet 41 to provide the oxygen required for atomization and carry the formed aerosol through the airflow channel 320 and the air duct 14 to the user's oral cavity. .

In this application, referring to FIG. 4 and FIG. 5 , FIG. 4 is a schematic structural diagram of the atomization assembly in the atomizer shown in FIG. 2 , and FIG. 5 is a schematic structural diagram of the first end surface of the atomization assembly shown in FIG. 4 .

The atomizing assembly 30 includes a porous substrate 32 and a heating element 34. The porous substrate 32 has an atomizing surface and an airflow passage 320 that runs through the porous substrate 32. The inner wall 327 of the airflow passage 320 is provided with a capillary groove 322, and the capillary groove 322 extends to the mist. The atomizing surface, wherein the capillary force of the honeycomb-shaped pores is greater than that of the capillary groove 322; the heating element 34 is arranged on the atomizing surface.

That is, the capillary force of the capillary groove 322 is smaller than the capillary force of the honeycomb-shaped pores in the porous matrix 32. Specifically, the size of the capillary groove 322 is at least one order of magnitude larger than the pore size of the honeycomb-shaped pores, and the pore size of the honeycomb-shaped pores is approximately 1 μm. to 100 μm, and the size of the capillary groove 322 is roughly in the range of 0.3mm to 3mm, so under the same volume, the capillary groove 322 can absorb and accommodate more liquid than the honeycomb-like pores in the porous matrix 32, so The liquid storage capacity of the porous substrate 32 can be increased by setting the capillary groove 322, so that when the liquid supply is insufficient, the liquid stored in the capillary groove 322 can replenish liquid to the atomizing surface in time to prevent dry burning on the atomizing surface.

The porous matrix 32 can be a porous ceramic matrix or a porous glass matrix, etc., and has honeycomb-like pores. For example, the porous ceramic matrix is usually a ceramic material sintered at high temperature by components such as aggregates, binders, and pore-forming agents. It has a large number of pore structures that communicate with each other and the surface of the material, and form honeycomb-like pores. Liquid can be directed from one side to the other through the honeycomb-shaped pores inside. The pore size of the pores in the porous matrix 32 may range from 1 μm to 100 μm.

The heating element 34 is arranged on the atomizing surface, wherein the heating element 34 can be arranged on the atomizing surface, and the heating element 34 can also be buried under the atomizing surface and close to the position of the atomizing surface, or the atomizing surface is provided with a sink Groove, the heating element 34 is arranged in the sunk groove of the atomization surface, which can make the liquid on the atomization surface be atomized to generate aerosol.

In this embodiment, the porous matrix 32 is cylindrical and has a first end surface 324 and a second end surface 326 opposite to each other. The air flow channel 320 and the capillary groove 322 both extend from the first end surface 324 to the second end surface 326, wherein the first The end surface 324 is an atomizing surface.

Specifically, one end where the first end surface 324 is located is assembled in the assembly hole 21 on the atomizer seat 20, and the first end surface 324 faces the base 40, and one end where the second end surface 326 is located is connected to the adapter sleeve 50, and the second end surface 326 is toward the air guide tube 14 , and the air flow channel 320 communicates with the air guide tube 14 .

The porous matrix 32 further includes an outer wall surface 325 disposed between the first end surface 324 and the second end surface 326 , the outer wall surface 325 connects the first end surface 324 and the second end surface 326 , and the outer wall surface 325 relatively surrounds the airflow channel 320 . The outer wall surface 325 is a liquid-absorbing surface, and at least part of the outer wall surface 325 is exposed to the liquid storage chamber 12. The liquid matrix stored in the liquid storage chamber 12 is guided to the remaining surface of the porous matrix 32 through the outer wall surface 325, and then the liquid in the liquid storage chamber 12 The matrix can be guided to the first end surface 324 and the capillary groove 322 via the outer wall surface 325 .

Optionally, the second end surface 326 is a liquid-absorbing surface, or both the outer wall surface 325 and the second end surface 326 are liquid-absorbing surfaces.

Optionally, the porous matrix 32 may also be in the shape of a prism, and the side between the two ends thereof may be a liquid-absorbing surface, or one of the end surfaces may be a liquid-absorbing surface, which is not specifically limited in the present application.

In the present application, the inner side wall 327 of the air flow channel 320 is provided with at least one capillary groove 322, and one end of the capillary groove 322 extends to the first end surface 324 of the porous matrix 32, so that the liquid substrate stored in the capillary groove 322 can be supplied to the first end surface 324. liquid. For example, the inner wall 327 may be provided with one, two or three equal number of capillary grooves 322 , wherein the plurality of capillary grooves 322 may be uniformly or non-uniformly distributed along the circumferential direction of the airflow channel 320 .

The other end of the capillary groove 322 may extend to the second end surface 326 of the porous substrate 32 , or the other end of the capillary groove 322 does not extend to the second end surface 326 of the porous substrate 32 .

The capillary groove 322 can extend linearly along the axial direction of the airflow channel 320, or the capillary groove 322 can also extend helically along the axial direction of the airflow channel 320, or the capillary groove 322 can also bend and extend along the axial direction of the airflow channel 320. This is not specifically limited.

In this embodiment, a plurality of capillary grooves 322 are evenly distributed along the circumferential direction of the airflow passage 320, the capillary grooves 322 extend linearly along the axial direction of the airflow passage 320, and the other end of the capillary groove 322 extends to the second end of the porous matrix 32. The end surface 326 facilitates the manufacture of the capillary groove 322 on the inner wall 327 of the airflow channel 320 , so that the manufacturing process of the capillary groove 322 can be simplified.

Wherein, the capillary groove 322 defined in this application means that it has capillary action, and then the liquid substrate introduced into the capillary groove 322 from the outer wall surface 325 can be adsorbed and stored in the capillary groove 322 due to capillary action.

The average pore diameter of the pore structure inside the porous matrix 32 itself is on the order of μm, and the size of the capillary groove 322 is on the order of mm. The provision of the capillary groove 322 can increase the liquid storage capacity of the porous matrix 32 .

It can be understood that the capillary groove 322 is arranged on the inner side wall 327 of the airflow channel 320, then the capillary groove 322 is communicated with the airflow channel 320, and due to the capillary action of the capillary groove 322, the liquid substrate stored in the capillary groove 322 can also be prevented from entering the airflow Channel 320.

Furthermore, the liquid storage chamber 12 is always in a state of slight negative pressure, which is also beneficial to prevent the liquid substrate stored in the capillary groove 322 from entering the airflow channel 320 .

That is, in the present application, capillary grooves 322 are provided on the inner sidewall 327 of the airflow channel 320. Even if the capillary grooves 322 communicate with the airflow channel 320, the liquid matrix in the capillary grooves 322 can be effectively prevented from entering the airflow channel 320, thereby preventing users from The non-nebulized liquid base is drawn directly into the mouth during suction.

The heating element 34 is disposed on the first end surface 324 of the porous substrate 32 so as to atomize the liquid matrix transmitted to the first end surface 324 to generate an aerosol. The heating element 34 is arranged around the air flow channel 320 and the capillary groove 322, and then the capillary groove 322 is convenient for guiding the stored liquid matrix to the first end surface 324, so as to supplement the liquid matrix at the first end surface 324, and avoid the heating element 34 being caused by the first end surface 324. The liquid matrix of the liquid base makes heating element 34 burn dry because of insufficient liquid supply.

In a specific application scenario, before the heating element 34 works, the first end surface 324 is filled with a liquid substrate, and the capillary groove 322 is also filled with a liquid substrate. After the heating element 34 starts to atomize, it will consume the liquid substrate on the first end surface 324 If the liquid supply rate of the pore structure of the porous matrix 32 itself is lower than the consumption rate of the heating element 34 due to factors such as excessive negative pressure in the liquid storage chamber 12, it will inevitably cause the heating element 34 to burn dry due to insufficient liquid supply. It produces a burnt smell, reduces the atomization efficiency, and makes the aerosol taste bad.

The liquid matrix stored in the capillary groove 322 can be additionally replenished to the first end surface 324 to avoid insufficient liquid supply, and the liquid matrix stored in the capillary groove 322 near the first end surface 324 is replenished after the first end surface 324 , the liquid matrix stored in the far part of the capillary groove 322 from the first end surface 324 can be quickly replenished to its nearer part due to capillary action, thereby maintaining the liquid supply of the capillary groove 322 to the first end surface 324, and through the outer wall surface 325 The liquid matrix in the capillary groove 322 is constantly replenished.

Therefore, the present application sets the capillary groove 322 on the inner side wall 327 of the air flow channel 320 to increase the liquid storage capacity of the porous substrate 32, and one end of the capillary groove 322 also extends to the first end surface 324, so that the liquid substrate stored in the capillary groove 322 It can be supplied to the first end surface 324 quickly, and then supplement the liquid matrix required by the heating element 34 to avoid the occurrence of insufficient liquid supply.

Optionally, the cross-section of the capillary groove 322 along the axial direction of the airflow channel 320 may be polygonal or arc-shaped. For example, the cross section of the capillary groove 322 along the axial direction of the airflow channel 320 is semicircular, elliptical, rectangular or pentagonal, etc., which is not specifically limited in the present application.

In this embodiment, as shown in FIG. 6 , FIG. 6 is an annotated schematic diagram of the first end surface of the porous matrix shown in FIG. 5 . The capillary groove 322 includes a first groove body 321 and a second groove body 323 communicating with the first groove body 321 in the depth direction, and the second groove body 323 is arranged between the air flow channel 320 and the first groove body 321; the depth direction is the spacing direction in which the inner wall 327 points to the outer wall surface 325 .

Wherein, the maximum width a of the second groove body 323 along the circumferential direction of the airflow channel 320 is smaller than the maximum width c of the first groove body 321 along the circumferential direction of the airflow channel 320 .

The axial cross section of the first groove body 321 along the airflow channel 320 can be semicircular, oval or irregular arc, etc., and the axial cross section of the second groove body 323 along the airflow channel 320 can be rectangular, trapezoidal or wavy, etc., which are not specifically limited in the present application.

In this embodiment, the cross-section of the first groove body 321 along the axial direction of the airflow passage 320 is semicircular, that is, the first groove body 321 is an arc-shaped groove, and the second groove body 323 is along the axial direction of the airflow passage 320. The cross-section is rectangular, and the second groove body 323 is a rectangular groove, so that the cross-section of the capillary groove 322 along the axial direction of the airflow channel 320 is Ω-shaped, and then the maximum width of the first groove body 321 along the circumferential direction of the airflow channel 320 c is the diameter of a semicircle, and the width a of the circumferential direction of the airflow passage 320 everywhere in the second groove body 323 is uniform, that is, the width a of the circumferential direction of the airflow passage 320 everywhere in the second groove body 323 is smaller than that of the first groove body 323 . The diameter c of the second tank body 323 .

By limiting the maximum width a of the second groove body 323 to be smaller than the maximum width c of the first groove body 321, the second groove body 323 is narrower than the first groove body 321, so as to improve the capillary through the narrower second groove body 323. The pump pressure further facilitates the liquid matrix in the capillary groove 322 to supply liquid to the first end surface 324 along the second groove body 323 , and is also more conducive to liquid locking and preventing liquid leakage.

That is to say, in this embodiment, both the rectangular width of the second groove 323 and the circular diameter of the first groove 321 can increase the capillary force of the capillary groove 322, which is beneficial for the capillary groove 322 to lock liquid and prevent leakage.

Further, the notch width of the second groove body 323 located in the airflow channel 320 is smaller than the hydraulic diameter of the airflow channel 320, wherein the notch width of the second groove body 323 is its width along the circumferential direction of the airflow channel 320, so as to greatly reduce the The friction between the aerosol in the airflow channel 320 and the liquid substrate at the notch of the second groove body 323 facilitates the flow of the aerosol and the liquid substrate in opposite directions.

Further, the width a of the second slot body 323 along the circumferential direction of the airflow channel 320 is greater than or equal to 0.57 mm and less than or equal to 0.86 mm. The minimum width a of the second groove body 323 along the circumferential direction of the airflow passage 320 is greater than or equal to 0.57 mm, and the maximum width a of the second groove body 323 along the circumferential direction of the airflow passage 320 is less than or equal to 0.86 mm.

For example, if the cross section of the second groove body 323 is trapezoidal, its minimum width is greater than or equal to 0.57 mm, and its maximum width is less than or equal to 0.86 mm.

In this embodiment, the cross section of the second groove body 323 is rectangular, and its width is uniform, so the width of the second groove body 323 can be 0.6mm, 0.65mm, 0.7mm, 0.75mm or 0.83mm.

The narrower the width of the second groove body 323, the greater the friction loss between the liquid matrix and the second groove body 323. If the width of the second groove body 323 is too wide, the capillary pump pressure of the second groove body 323 will be insufficient. Through simulation analysis and a large number of experimental verifications, when the width of the second tank 323 is in the range of 0.57mm to 0.86mm, the friction between it and the liquid matrix is small, and its capillary pump pressure is relatively high, which can make the liquid matrix along the The second tank body 323 quickly supplies liquid to the first end surface 324 .

The depth b of the second groove body 323 along the radial direction of the airflow channel 320 is greater than or equal to 0.92mm and less than or equal to 1.8mm, then the depth b of the second groove body 323 can be 0.92mm, 1.0mm, 1.2mm, 1.4mm/1.6mm or 1.8mm. The depth b of the second groove body 323 is within this range, which also makes the friction between it and the liquid matrix smaller, and its capillary pump pressure is larger, which is conducive to improving the ability of the capillary groove 322 to lock liquid and prevent leakage. .

The maximum width c of the first groove body 321 along the circumferential direction of the airflow channel 320 is greater than or equal to 0.69 mm and less than or equal to 1.03 mm.

In this embodiment, the cross section of the first groove body 321 is semicircular, so the diameter c of the first groove body 321 is greater than or equal to 0.69mm and less than or equal to 1.03mm, and the diameter c of the first groove body 321 can be 0.69mm, 0.72mm, 0.8mm, 0.9mm, 1.0mm or 1.03mm. The diameter c of the first groove body 321 within this range can make it have stronger capillary force and higher liquid permeability on the liquid matrix, which is beneficial to improve the ability of the capillary groove 322 to lock liquid and prevent liquid leakage.

Referring to Figures 7 to 9, Figure 7 is a schematic side view of the atomization assembly shown in Figure 4, Figure 8 is a schematic cross-sectional view of the atomization assembly shown in Figure 7 along the AA direction, and Figure 9 is a schematic diagram of the structure shown in Figure 4 Schematic diagram of the structure of the second end surface of the atomization component.

Furthermore, the capillary groove 322 has a first draft angle α from the first end surface 324 to the second end surface 326 , and the cross section of the capillary groove 322 along the axial direction of the airflow channel 320 gradually extends from the first end surface 324 to the second end surface 326 increase.

By limiting the capillary groove 322 to have a first draft angle α, it is beneficial for the mold for manufacturing the capillary groove 322 to be pulled out better when the porous matrix 32 is processed, and the axial cross section of the capillary groove 322 extends from the second end surface 326 to the first The gradual reduction of one end surface 324 is conducive to gradually increasing the capillary force. On the one hand, it is beneficial for the liquid to flow along the capillary groove 322 to the atomizing surface, and on the other hand, it is more conducive to the capillary groove 322 to lock liquid and prevent liquid leakage.

The first draft angle α of the capillary groove 322 ranges from 1 degree to 3 degrees, and the first draft angle can be 1 degree, 1.5 degrees, 2 degrees, 2.5 degrees or 3 degrees, etc.

The value of the first draft angle α is in the range of 1 degree to 3 degrees, which can ensure that the capillary groove 322 as a whole has strong capillary force, capillary pump pressure and liquid permeability.

Further, the airflow passage 320 has a second draft angle β from the first end surface 324 to the second end surface 326, and the radial dimension of the airflow passage 320 on the first end surface 324 is smaller than the radial dimension of the airflow passage 320 on the second end surface 326 .

By defining the airflow channel 320 to have a second draft angle β, it is beneficial for the mold for manufacturing the airflow channel 320 to be pulled out better when the porous matrix 32 is processed, and the cross section of the airflow channel 320 along the axial direction is from the first end surface 324 to the second The two end surfaces 326 gradually increase, which is beneficial for the aerosol to pass through the airflow channel 320. In the process of flowing from the first end surface 324 to the second end surface 326, the pressure loss of the airflow is gradually reduced, so as to facilitate the flow of the aerosol into the air duct 14 and reduce the Aerosol backflow.

The second draft angle β of the airflow channel 320 is in the range of 1 degree to 3 degrees, and the second draft angle may be 1 degree, 1.5 degrees, 2 degrees, 2.5 degrees or 3 degrees, etc. The value of the second draft angle is in the range of 1 degree to 3 degrees, which is conducive to the circulation of the aerosol along the airflow channel 320 and reduces the backflow of the aerosol.

Wherein, the first draft angle α and the second draft angle β may be equal or different, which is not specifically limited in this application.

Referring to FIG. 2 again, the heating element 34 is arranged on the first end surface 324 of the porous substrate 32 and is arranged around the airflow channel 320 and the capillary groove 322, wherein the heating element 34 can be a heating film or a heating resistor, etc., which is not specifically limited in the present application.

Optionally, the heating element 34 may be in the shape of an open ring, which is arranged around the airflow channel 320 and the plurality of capillary grooves 322 to atomize the liquid matrix on the first end surface 324 .

In this embodiment, a plurality of capillary grooves 322 are distributed along the circumferential direction of the airflow channel 320 at intervals, and tooth portions 328 are formed between adjacent capillary grooves 322 . The heating element 34 is in the shape of a lotus ring. The heating element 34 includes a plurality of surrounding parts 340 connected in sequence. Each surrounding part 340 is arranged around a corresponding capillary groove 322, so that the heating area of the heating element 34 can be relatively increased, and the atomization rate can be improved. , that is, the amount of atomization that can be generated per unit time is greater, which can relatively make the atomization component 30 more sensitive and quicker in response.

Furthermore, the heating element 34 also includes a plurality of extensions 342 , each extension 342 is connected to a connecting end between two corresponding surrounding portions 340 , and the extensions 342 are also disposed on the tooth portion 328 .

Wherein, the connection end between the two surrounding parts 340 is set corresponding to the tooth part 328, and further by setting the extension part 342 to extend to the surface of the tooth part 328 on the first end surface 324, so as to facilitate atomization by the capillary groove more quickly The liquid base provided by 322 speeds up the atomization rate.

Furthermore, when the surrounding part 340 and the extension part 342 work, the capillary groove 322 also has a very obvious temperature gradient, which further makes the temperature difference of the generated aerosol larger, resulting in a more obvious difference in the taste of the aerosol. The aerosol taste experienced by the user's taste is more distinct and the experience is better.

Optionally, the heating element 34 may also include a plurality of independent heating elements, and the plurality of independent heating elements are arranged on the first end surface 324 around the airflow passage 320; or the heating element 34 may not be arranged around the airflow passage 320. This is not specifically limited.

Further, as shown in FIG. 4 , a retaining ring 329 is provided on the outer wall of the porous base 32 , and the retaining ring 329 stops in the assembly hole 21 of the atomizing seat 20 to limit the position of the atomizing assembly 30 .

Different from the situation in the prior art, this embodiment discloses an electronic atomization device, an atomizer and an atomization component thereof. The capillary groove is arranged on the inner side wall of the air flow channel to increase the liquid storage capacity of the porous substrate, and one end of the capillary groove also extends to the first end surface, so that the liquid substrate stored in the capillary groove can be quickly provided to the first end surface, and then replenished The liquid substrate required by the heating element can avoid dry burning caused by insufficient liquid supply.

The applicant further researched and found that since the heating element 34 of the above-mentioned electronic atomization device 300 mostly uses a heating film, and the heating film is a serial heating film, the distance between the two electrodes of the heating film on the porous substrate 32 is relatively close. , so that the heating element 34 cannot be electrically connected to the power supply 200 by means of a thimble connection. Therefore, in order to solve the problem that the heating element 34 cannot be electrically connected to the power supply 200 by using a thimble connection, the second embodiment of the present application provides another electronic atomization device. The structure of the electronic atomization device provided by the second embodiment of the present application is basically the same as that of the electronic atomization device provided by the first embodiment of the present application, the main difference is that the structure of the atomization assembly 30 is different. In addition, the installation methods of the atomization assembly 30 are also different.

Please refer to Fig. 10 and Fig. 11, Fig. 10 is a schematic cross-sectional structure diagram of the atomizer of the electronic atomization device provided in the second embodiment of the present application, and Fig. 11 is a perspective view of the atomization component in the atomizer shown in Fig. 10 Schematic. In this embodiment, the atomization assembly 30 is disposed between the liquid storage bin 10 and the atomization seat 20 . One end of the atomization assembly 30 is fixed to the atomization seat 20 , and the other end thereof is relatively fixed to the adapter sleeve 50 .

Specifically, one end of the atomization assembly 30 is assembled in the assembly hole 21 on the atomization seat 20, and the other end is connected to the adapter sleeve 50. The atomization assembly 30 is provided with an air flow channel 320, and the air guide tube 14 passes through the air flow channel. 320 communicates with the atomization chamber 24 , and the aerosol formed after atomization in the atomization chamber 24 is exported through the airflow channel 320 and the air duct 14 in sequence.

There is also a thimble 42 on the base 40. In order to facilitate the connection of the atomizer 100 to the power supply 200, in this embodiment, two thimbles 42 are provided, and one thimble 42 is respectively connected to the positive pole of the power supply 200 and the atomization component 30, and the other A thimble 42 is respectively connected to the negative electrode of the power supply 200 and the atomizing assembly 30 .

Referring to FIG. 11 and FIG. 12 , FIG. 12 is a schematic structural view of the first end surface of the atomization assembly shown in FIG. 11 .

In this embodiment, the atomizing assembly 30 includes a porous substrate 32 and a heating element 34. The porous substrate 32 has an atomizing surface and an airflow channel 320 passing through the porous substrate 32. The airflow channel 320 extends to the atomizing surface. The heating element 34 is located on the atomizing surface. Atomization surface; wherein, the heating element 34 includes a first heating element 341 and a second heating element 343 arranged in parallel, and the first heating element 341 and the second heating element 343 cooperate to surround the airflow channel 320 .

That is, the heating element 34 includes a first heating element 341 and a second heating element 343, and the first heating element 341 and the second heating element 343 are connected in parallel on the atomizing surface, so that the connection between the heating element 34 and the power supply 200 can be increased. The distance between two adjacent contacts or electrodes realizes the connection between the heating element 34 and the power supply 200 using a thimble. In addition, in other embodiments, when there is no contact or electrode, the thimble may also directly push against the ends of the first heating element 341 and the second heating element 343 to connect the heating element 34 and the power supply 200 .

Further, the heating element 34 also includes a first electrode 344 and a second electrode 345 arranged at intervals; the first heating element 341 and the second heating element 343 are both electrically connected between the first electrode 344 and the second electrode 345 .

Specifically, one end of the first heating element 341 is connected to the first electrode 344, and the other end is connected to the second electrode 345; one end of the second heating element 343 is connected to the first electrode 344, and the other end is connected to the second electrode 345, so that the first heating element 341 and The second heating element 343 is connected in parallel. The first electrode 344 and the second electrode 345, as two connection contacts of the first heating element 341 and the second heating element 343, abut against the thimbles 42 on the base 40 in one-to-one correspondence, so that the heating element 34 is connected to the power supply 200 connect.

Further, the first electrode 344 and the second electrode 345 are arranged axially symmetrically.

Specifically, in this embodiment, the porous matrix 32 is cylindrical, and it has a first end surface 324, a second end surface 326 and an outer wall surface 325, the first end surface 324 is opposite to the second end surface 326, and the outer wall surface 325 is connected to the first end surface 324 and the second end surface 326 , and the outer wall surface 325 surrounds the air flow passage 320 oppositely, the air flow passage 320 extends from the first end surface 324 to the second end surface 326 , wherein the first end surface 324 is an atomizing surface. The side between the two ends may be a liquid-absorbing surface, or one of the end surfaces may be a liquid-absorbing surface, which is not specifically limited in the present application. The first electrode 344 and the second electrode 345 are arranged symmetrically about the central axis of the porous matrix 32 on the first end face 324, for example, the first electrode 344 and the second electrode 345 are symmetrically arranged on two sides of the same circle diameter of the first end face 324 end. In this way, the first heating element 341 and the second heating element 343 can be arranged symmetrically on both sides of the same circle diameter of the first end surface 324, and furthermore, when the atomizer 100 is in operation, the first heating element 341 and the second heating element can The heating area of 343 is relatively uniform; and compared with other methods such as serial heating film heating, the first heating element 341 and the second heating element 343 are heated in zones, which can relatively reduce local high temperature points, which is beneficial to suppress the harmful substances. At the same time, it can effectively reduce dry burning and coking, and improve the taste of the aerosol after atomization.

More specifically, the first heating element 341 and the second heating element 343 are arranged around the airflow channel 320 and the plurality of capillary grooves 322 . That is, both the first heating element 341 and the second heating element 343 are in the shape of a lotus ring, and each of the first heating element 341 and the second heating element 343 includes a plurality of surrounding parts 340 connected in sequence, and each surrounding part 340 corresponds to a capillary groove 322 is arranged around, so that the density of smoke oil near the heating element 34 can be relatively increased, thereby increasing the atomization rate, that is, the amount of atomization that can be generated in a unit time is more, and the atomization component 30 can be relatively more sensitive and respond faster.

More specifically, a tooth portion 328 is formed between adjacent capillary grooves 322, and the connecting end between the two surrounding portions 340 is arranged on the tooth portion 328, so as to facilitate atomization by the capillary groove 322 more quickly. The liquid base provided accelerates the nebulization rate.

More specifically, the first heating element 341 and the second heating element 343 also include a plurality of extensions 342, and each extension 342 is connected to the connecting end between the corresponding two surrounding parts 340, and the first electrode 344 and the second electrode 345 corresponds to the extension portion 342 .

Further, both the first electrode 344 and the second electrode 345 extend from the outer wall surface 325 of the porous matrix 32 to the air flow channel 320 .

Specifically, the first electrode 344 and the second electrode 345 are arranged on the first end surface 324 in an axisymmetric manner, and one end of the first electrode 344 and the second electrode 345 both extend to the outer wall surface 325 and are flush with the outer wall surface 325 The other ends of the first electrode 344 and the second electrode 345 both extend to the inner wall of the airflow channel 320 , that is, extend to the capillary groove 322 . Such a design can not only maximize the connection area between the first electrode 344 and the second electrode 345 and the porous substrate 32 respectively, reduce the falling off of the first electrode 344 and the second electrode 345; The connection area with the first electrode 344 and the second electrode 345, and the connection area between the second heating element 343 and the first electrode 344 and the second electrode 345, reduce the first electrode 344 and the first heating element 341 and the second heating element 343 to reduce the falling off of the second electrode 345 and the first heating element 341 and the second heating element 343 .

Referring to FIG. 13 and FIG. 14 , FIG. 13 is a structural schematic diagram of another viewing angle of the atomization assembly in the atomizer shown in FIG. 10 , and FIG. 14 is a structural schematic diagram of the second end surface of the atomization assembly shown in FIG. 13 . The atomization assembly 30 also includes a positioning portion 35 , and the positioning portion 35 is disposed at an end of the porous base 32 away from the atomization surface. That is, the positioning portion 35 is disposed on the second end surface 326 and the outer wall surface 325 of the porous matrix 32 .

Specifically, in one embodiment, the positioning portion 35 includes a first positioning groove 351 and a second positioning groove 352, the first positioning groove 351 and the second positioning groove 352 are opened on the outer wall surface 325 and extend to the second end surface 326 , the first positioning groove 351 and the second positioning groove 352 are arranged symmetrically with respect to the central axis of the porous matrix 32 , for example, the first positioning groove 351 and the second positioning groove 352 are symmetrically arranged at both ends of the same diameter of the first end surface 324 . In another embodiment, the positioning portion 35 may also be a positioning post or a positioning boss. When producing the atomization assembly 30, the positioning part 35 is conducive to positioning the porous matrix 32, facilitating the processing of the first heating element 341 and the second heating element 343, and improving the first heating element 341 and the second heating element 343 in the first heating element. The accuracy of the position of the end surface 324 is also conducive to the positioning connection between the atomization assembly 30 and the adapter sleeve 50 when the atomization assembly 30 is installed.

In addition, the structure of the capillary groove 322 provided on the inner side wall 327 of the air flow channel 320 in this embodiment is consistent with the structure of the capillary groove 322 in the above-mentioned embodiment, and will not be described in detail in this embodiment.

Different from the situation in the prior art, this embodiment discloses an electronic atomization device, an atomizer and an atomization component thereof. By setting the first heating body 341 and the second heating body 343 on the first end surface 324, and making the first heating body 341 and the second heating body 343 parallel, to increase the connection between the first heating body 341 and the second heating body 343 The distance between the first electrode 344 and the second electrode 345 is such that the heating element 34 can be connected to the power supply 200 through the thimble.

The above is only an embodiment of the application, and does not limit the patent scope of the application. Any equivalent structure or equivalent process conversion made by using the specification and drawings of the application, or directly or indirectly used in other related technologies fields, are all included in the scope of patent protection of this application in the same way.

Claims (24)

An atomization assembly, wherein the atomization assembly includes: A porous substrate, the porous substrate includes an atomizing surface and an airflow channel passing through the porous substrate, and the airflow channel extends to the atomizing surface; a heating element arranged on the atomizing surface; Wherein, the heating element includes a first heating body and a second heating body arranged in parallel, and the first heating body and the second heating body cooperate to be arranged around the airflow channel. The atomization assembly according to claim 1, wherein the heating element further comprises a first electrode and a second electrode arranged at intervals; both the first heating body and the second heating body are electrically connected to the first heating element between an electrode and the second electrode. The atomization assembly according to claim 2, wherein the first electrode and the second electrode are arranged in axisymmetric manner. The atomization assembly according to claim 3, wherein both the first electrode and the second electrode extend from the outer wall of the porous base to the air flow channel. The atomization assembly according to any one of claims 1-4, wherein the inner side wall of the airflow channel is provided with capillary grooves, the capillary grooves extend to the atomization surface, and the porous matrix has honeycomb-shaped pores , the capillary force of the capillary groove is smaller than the capillary force of the honeycomb-shaped pores. The atomizing assembly according to claim 5, wherein the porous substrate comprises a first end surface and a second end surface opposite to each other, and the air flow channel and the capillary groove extend from the first end surface to the second end surface. An end surface, wherein the first end surface is the atomizing surface. The atomization assembly according to claim 6, wherein the porous base further comprises an outer wall surface disposed between the first end surface and the second end surface, the outer wall surface being a liquid-absorbing surface; and/or The second end surface is a liquid-absorbing surface. The atomizing assembly according to claim 7, wherein the porous substrate is cylindrical. The atomization assembly according to claim 5, wherein the cross-section of the capillary groove along the axial direction of the airflow channel is polygonal or arc-shaped. The atomization assembly according to claim 5, wherein the capillary groove includes a first groove body and a second groove body communicating with the first groove body in the depth direction, and the second groove body is arranged on the between the airflow channel and the first tank; Wherein, the maximum width of the second groove body along the circumferential direction of the airflow channel is smaller than the maximum width of the first groove body along the circumferential direction of the airflow channel. The atomization assembly according to claim 10, wherein, the first groove body is an arc groove, and the second groove body is a rectangular groove, so that the capillary groove is along the axial direction of the air flow channel. The section is Ω-shaped. The atomization assembly according to claim 10, wherein the width of the second groove body along the circumferential direction of the airflow channel is greater than or equal to 0.57mm and less than or equal to 0.86mm. The atomization assembly according to claim 12, wherein the maximum width of the first groove along the circumferential direction of the airflow channel is greater than or equal to 0.69mm and less than or equal to 1.03mm. The atomization assembly according to claim 12, wherein the depth of the second groove along the radial direction of the airflow channel is greater than or equal to 0.92mm and less than or equal to 1.8mm. The atomization assembly according to claim 10, wherein, the width of the opening of the second groove located in the airflow channel is smaller than the hydraulic diameter of the airflow channel. The atomization assembly according to claim 6, wherein the capillary groove has a first draft angle from the first end surface to the second end surface, and the capillary groove is along the axial direction of the airflow channel The cross-section gradually increases from the first end face to the second end face. The atomizing assembly according to claim 16, wherein the first draft angle is in the range of 1 degree to 3 degrees. The atomization assembly according to claim 6 or 16, wherein, the air flow channel has a second draft angle from the first end surface to the second end surface, and the air flow channel has a second draft angle on the first end surface The radial dimension is smaller than the radial dimension of the airflow channel on the second end surface. The atomizing assembly according to claim 18, wherein the second draft angle is in the range of 1 degree to 3 degrees. The atomization assembly according to claim 5, wherein a plurality of capillary grooves are provided, and each of the first heating body and the second heating body includes a plurality of surrounding parts connected in sequence, and each of the surrounding parts It is set corresponding to one capillary groove. The atomizing assembly according to claim 20, wherein a tooth portion is formed between the adjacent capillary grooves, and the connecting end between the two surrounding portions is disposed on the tooth portion. The atomizing assembly according to claim 1, further comprising a positioning part, the positioning part is arranged at an end of the porous base body away from the atomizing surface. An atomizer, comprising a liquid storage bin for storing an aerosol-generating substrate, wherein the atomizer includes the atomization assembly according to any one of claims 1 to 22; the porous substrate and the The liquid reservoir is in fluid communication, and the heating element is used to heat the aerosol-generating substrate that atomizes the porous substrate. An electronic atomization device, wherein the electronic atomization device comprises a power supply and the atomizer according to claim 23, the power supply is connected to the atomizer and supplies power to the atomizer.

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