Atomizing core, atomizer and electronic atomizing device

Abstract

The utility model discloses an atomizing core, an atomizer and an electronic atomizing device.The atomizing core comprises liquid guide cotton, a support sleeve and a glass fiber tube, the liquid guide cotton is arranged in an enclosed mode to form a channel, a heating body is arranged in the channel and makes contact with the inner wall of the liquid guide cotton, at least one first liquid inlet hole is formed in the side wall of the support sleeve, and the glass fiber tube is arranged in the support sleeve; the support sleeve is arranged on the outer wall of the liquid guide cotton in a sleeving mode, the outer wall of the liquid guide cotton covers all the first liquid inlet holes, and the glass fiber pipe is arranged on the outer wall of the support sleeve in a sleeving mode and covers all the first liquid inlet holes. By means of the atomizing core, the smoking experience of a user can be improved.

Description

Technical Field

[0001] The present application relates to the field of electronic atomization technology, and in particular to an atomization core, an atomizer, and an electronic atomization device. Background Art

[0002] An electronic atomization device is an electronic device that can vaporize the atomized liquid such as tobacco oil and liquid medicine stored in it into an aerosol through electric heating. The electronic atomization device usually includes an atomizer for generating an aerosol and a power supply component for providing electrical energy to the atomizer. The atomizer usually includes an atomizer core and a liquid storage chamber for storing the atomized liquid. The atomizer core generally includes a heating element and liquid guide cotton wrapped around the outer periphery of the heating element. The liquid guide cotton absorbs the atomized liquid from the liquid storage chamber and conducts the atomized liquid to the surface of the heating element. The heating element is energized and generates heat, thereby vaporizing the atomized liquid into an aerosol that can be inhaled by the user.

[0003] In the related art, in order to reduce the risk of atomized liquid leaking from the inner wall of the liquid-guiding cotton due to the direct connection between the liquid storage chamber and the liquid-guiding cotton, thereby causing leakage of the atomizer core, a layer of liquid storage cotton can be wrapped around the outer periphery of the liquid-guiding cotton. However, although this can reduce the risk of leakage of the atomizer core, the atomizer core with an inner and outer cotton layer structure still has the following problems:

[0004] When users use electronic atomization devices for inhalation, the atomization core is prone to the phenomenon of "liquid flying", that is, the liquid guide cotton will have the problem of liquid supplying too fast, resulting in some atomized liquid on the liquid guide cotton that has not yet been atomized by the heating element being sucked into the user's mouth, thereby reducing the user's smoking experience. Utility Model Content

[0005] The main purpose of this application is to provide an atomizer core, an atomizer and an electronic atomizer device, aiming to solve the technical problem that the existing atomizer core is prone to the "liquid flying" phenomenon, which makes it easy for users to inhale un-atomized atomized liquid.

[0006] To achieve the above objectives, in a first aspect, the present application provides an atomizer core, which includes:

[0007] The liquid-guiding cotton is arranged in an enclosed manner to form a channel;

[0008] a heating element, disposed in the channel and in contact with the inner wall of the liquid-guiding cotton;

[0009] A bracket sleeve, having at least one first liquid inlet hole formed on its side wall, wherein the bracket sleeve is sleeved on the outer wall of the liquid-conducting cotton and the outer wall of the liquid-conducting cotton covers each of the first liquid inlet holes; and

[0010] The glass fiber tube is sleeved on the outer wall of the bracket sleeve and covers each of the first liquid inlet holes.

[0011] In some embodiments, the wall thickness of the glass fiber tube is 0.1 mm to 0.6 mm.

[0012] In some embodiments, the heating element is arranged on the inner wall of the liquid-conducting cotton.

[0013] In some embodiments, the heating element includes any one of a spiral metal heating wire and a metal heating mesh.

[0014] In some embodiments, the atomizer core further includes a positive electrode pin and a negative electrode pin, the heating element has a first end and a second end opposite to each other, the positive electrode pin is electrically connected to the first end, and the negative electrode pin is electrically connected to the second end.

[0015] In some embodiments, the bracket sleeve includes an internal hollow sleeve portion and an internal hollow first shoulder portion, the outer diameter of the sleeve portion is smaller than the outer diameter of the first shoulder portion, one end portion of the sleeve portion is connected to an end surface of the first shoulder portion as a whole, the side wall of the sleeve portion is provided with the first liquid inlet hole and at least one slit spaced apart from the first liquid inlet hole, the slit is extended along the axial direction of the sleeve portion and passes through at least one end surface of the sleeve portion away from the first shoulder portion, the sleeve portion is sleeved on the outer wall of the liquid-guiding cotton, and the fiberglass tube is sleeved on the outer wall of the sleeve portion and abuts against the first shoulder portion.

[0016] In some embodiments, a second shoulder is protruding from the outer wall of one end of the first shoulder portion facing away from the sleeve portion, the atomizer core further includes an airway tube, and at least one second liquid inlet hole is opened on the side wall of the airway tube. One end portion of the airway tube is sleeved on the outer wall of the first shoulder portion and abuts against the second shoulder portion. The fiberglass tube is located between the sleeve portion and the airway tube, and the outer wall of the fiberglass tube covers each of the second liquid inlet holes. There is a height difference between the end surface of the airway tube facing away from the second shoulder and the end surface of the sleeve portion facing away from the first shoulder.

[0017] In some embodiments, the interior of the airway tube is formed with a first airway, a second airway, a third airway and a fourth airway located between an end face of the airway tube away from the second axial shoulder and an end face of the sleeve portion away from the first axial shoulder. The first airway, the second airway, the third airway and the fourth airway are connected in sequence from bottom to top along the axial direction of the airway tube. The inner diameter of the first airway is uniformly set, the inner diameter of the second airway gradually decreases from bottom to top along the axial direction of the airway tube, the inner diameter of the third airway is uniformly set, the inner diameter of the fourth airway gradually increases from bottom to top along the axial direction of the airway tube, and the inner diameter of the air inlet end of the second airway is equal to the inner diameter of the first airway, and the inner diameter of the air outlet end of the second airway and the inner diameter of the air inlet end of the fourth airway are both equal to the inner diameter of the third airway.

[0018] In some embodiments, the inner wall of the second air channel transitions to the inner wall of the third air channel in a circular arc.

[0019] In some embodiments, a sealing ring is sleeved on the outer wall of one end of the airway tube away from the second shaft shoulder.

[0020] In some embodiments, along the axial direction of the airway tube, an annular shoulder is protruded from the outer wall of the airway tube and is located between the second liquid inlet hole and the second shoulder portion.

[0021] To achieve the above-mentioned purpose, in a second aspect, the present application also provides an atomizer, which includes a shell and the atomizer core described in any of the above embodiments, wherein a liquid storage chamber for storing atomized liquid is provided in the shell, a suction nozzle is provided at one end of the shell, and the atomizer core is installed in the shell, wherein the channel is connected to the suction nozzle, and the side wall of the glass fiber tube is connected to the liquid storage chamber.

[0022] To achieve the above objectives, in a third aspect, the present application further provides an electronic atomization device, which includes a power supply component and the atomization core described in any of the above embodiments, and the power supply component is electrically connected to the heating element.

[0023] Compared with the prior art, the present invention has the following advantages:

[0024] In the technical solution of the embodiment of the present application, the inner wall of the liquid-guiding cotton is provided with a heating element, the outer wall of the liquid-guiding cotton is provided with a bracket sleeve having a first liquid inlet hole, and the outer wall of the bracket sleeve is provided with a glass fiber tube woven from glass fibers. When the atomizing core provided by the embodiment of the present application is applied to the atomizer, the atomized liquid in the liquid storage chamber of the atomizer passes through the side wall of the glass fiber tube and can enter the liquid-guiding cotton through the first liquid inlet hole of the bracket sleeve. The liquid-guiding cotton conducts the atomized liquid to the heating element for heating and atomization, thereby vaporizing the atomized liquid into an aerosol that can be inhaled by the user. Among them, on the one hand, the glass fiber structure of the glass fiber tube itself can play a certain buffering role on the flow of the atomized liquid, thereby reducing the fluidity of the atomized liquid and slowing down the speed at which the atomized liquid flows into the liquid-guiding cotton; on the other hand, the glass fiber tube itself is distributed with weaving gaps. When the atomized liquid passes through the weaving gaps of the glass fiber tube, an oil film will be formed at the weaving gaps. The surface tension generated by the oil film can further reduce the fluidity of the atomized liquid, thereby further slowing down the speed at which the atomized liquid flows into the liquid-guiding cotton. In the process of user's inhalation, the risk of "liquid flying" in the atomizer core caused by the atomized liquid flowing into the liquid-guiding cotton too quickly can be effectively reduced, thereby effectively reducing the risk of users inhaling atomized liquid that has not been atomized in time by the heating element, so that the user's inhalation experience can be effectively improved.

[0025] Moreover, compared with porous structures such as liquid storage cotton, the glass fiber tube woven from glass fibers has weaving gaps. These weaving gaps can form an oil film that can generate surface tension when the atomized liquid passes through it, thus making the glass fiber tube have better liquid control performance, thereby better preventing the atomization core from "liquid flying".

[0026] In addition, compared to soft liquid storage cotton, since the fiberglass tube is a hard liquid-conducting structure, during the process of making the atomizer core, the fiberglass tube can be directly sleeved on the outer wall of the bracket sleeve without the need for tedious cotton wrapping operations on the periphery of the bracket sleeve, thereby improving the production efficiency of the atomizer core. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0028] Figure 1 This is a schematic diagram of the three-dimensional structure of the atomizer core in one embodiment of the present application;

[0029] Figure 2 This is a cross-sectional view of an atomizer core in one embodiment of the present application;

[0030] Figure 3 This is a schematic diagram of the structural decomposition of the atomizer core in one embodiment of the present application;

[0031] Figure 4 for Figure 3 Schematic diagram of the structure after further decomposition;

[0032] Figure 5 This is a structural diagram of an atomizer in one embodiment of the present application;

[0033] Figure 6 Schematic diagram of the structure of an electronic atomization device in one embodiment of the present application.

[0034] Description of Figure Numbers:

[0035] 1- guide cotton, 10- channel;

[0036] 2-heating element, 21-first end, 22-second end;

[0037] 3- bracket sleeve, 30- sleeve portion, 301- first liquid inlet hole, 302- slit, 31- first shaft shoulder, 32- second shaft shoulder;

[0038] 4-Fiberglass tube;

[0039] 51-positive pin, 52-negative pin;

[0040] 6-sealing ring;

[0041] 7-airway tube, 70-second liquid inlet hole, 71-first airway, 72-second airway, 73-third airway, 74-fourth airway, 75-annular shoulder;

[0042] 81-shell, 810-liquid storage chamber, 811-nozzle, 82-base;

[0043] 9-Power supply assembly.

[0044] The realization of the objectives, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0046] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0047] In addition, when an element is described as being “fixed to” another element, it may be directly on the other element or one or more intervening elements may be present therebetween. When an element is described as being “connected to” another element, it may be directly connected to the other element or one or more intervening elements may be present therebetween.

[0048] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or", "and / or" or "and / or" appear in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0049] Please refer to Figure 1-4 An embodiment of the present application provides an atomizer core, which includes a liquid-guiding cotton 1, a bracket sleeve 3 and a glass fiber tube 4, wherein:

[0050] The liquid-guiding cotton 1 is arranged in an enclosed manner to form a channel 10 .

[0051] The heating element 2 is arranged in the channel 10 of the liquid-conducting cotton 1, and the heating element 2 is in contact with the inner wall of the liquid-conducting cotton 1; in some optional embodiments, the structure of the heating element 2 can be a spiral metal heating wire, a metal heating mesh, or other structures that can be electrically heated, which can be determined according to actual usage requirements, and this embodiment does not impose specific restrictions on this.

[0052] At least one first liquid inlet hole 301 is provided on the side wall of the bracket sleeve 3, and the bracket sleeve 3 is sleeved on the outer wall of the liquid-conducting cotton 1 and the outer wall of the liquid-conducting cotton 1 covers each first liquid inlet hole 301; in some optional embodiments, in order to prevent the bracket sleeve 3 from being corroded by the atomized liquid, the material of the bracket sleeve 3 can be a metal material with good corrosion resistance such as stainless steel, nickel-chromium alloy, etc.

[0053] The glass fiber tube 4 is sleeved on the outer wall of the bracket sleeve 3 and covers each first liquid inlet hole 301 .

[0054] In this embodiment, it is understood that the fiberglass tube 4 is a tubular structure woven from glass fibers. Its manufacturing process is well known to those skilled in the art and will not be described in detail here. In practice, the fiberglass tube 4 may be a circular tubular structure with a circular cross-section, a square tubular structure with a square cross-section, or a tubular structure with other regular or irregular cross-sections, depending on actual usage requirements. This embodiment does not impose any specific limitations on the specific shape of the fiberglass tube 4.

[0055] In the technical solution of this embodiment, based on the above structural design, as Figure 5 As shown, when the atomizing core provided in this embodiment is applied to the atomizer, the atomized liquid in the liquid storage chamber 810 of the atomizer passes through the side wall of the glass fiber tube 4 and can enter the liquid-conducting cotton 1 through the first liquid inlet hole 301 of the bracket sleeve 3. The liquid-conducting cotton 1 conducts the atomized liquid to the heating element 2 for heating and atomization, thereby vaporizing the atomized liquid into an aerosol that can be inhaled by the user. Among them, on the one hand, the glass fiber structure of the glass fiber tube 4 itself can play a certain buffering role on the flow of the atomized liquid, thereby reducing the fluidity of the atomized liquid and slowing down the speed at which the atomized liquid flows into the liquid-guiding cotton 1; on the other hand, the glass fiber tube 4 itself is distributed with weaving gaps. When the atomized liquid passes through the weaving gaps of the glass fiber tube 4, a layer of oil film will be formed at the weaving gaps. The surface tension generated by the oil film can further reduce the fluidity of the atomized liquid, so that the speed at which the atomized liquid flows into the liquid-guiding cotton 1 is further slowed down, thereby effectively reducing the risk of "flying liquid" in the atomizing core due to the rapid speed at which the atomized liquid flows into the liquid-guiding cotton 1 during the user's inhalation process, and further reducing the risk of the user inhaling the atomized liquid that has not been atomized in time by the heating element 2, so that the user's inhalation experience can be effectively improved.

[0056] In particular, in this embodiment, compared with porous structures such as liquid storage cotton, since the glass fiber tube 4 woven from glass fibers has weaving gaps, the weaving gaps can form a layer of oil film that can generate surface tension when the atomized liquid passes through itself, so that the glass fiber tube 4 has better liquid control performance (that is, it can better control the flow rate of the atomized liquid), thereby better preventing the atomization core from "flying liquid". It should be noted here that, in the process of implementing the embodiments of the present application, the applicant discovered that an important reason for the "liquid flying" phenomenon in the atomizer core comprising an inner and outer cotton structure is that, on the one hand, the outer layer of the liquid storage cotton has good liquid conduction and liquid storage properties, and, in the process of the user's suction, a certain air pressure difference will be generated between the outer wall and the inner wall of the liquid-conducting cotton 1. The superposition of these two factors makes it so that when the atomized liquid adsorbed by the liquid-conducting cotton 1 is consumed, the atomized liquid adsorbed by the liquid storage cotton will quickly flow into the liquid-conducting cotton 1 for replenishment, thereby causing the occurrence of the "liquid flying" phenomenon. This embodiment utilizes the good liquid buffering properties and poor liquid storage properties of the glass fiber tube 4 to eliminate the influence of the air pressure difference, thereby effectively reducing the risk of the "liquid flying" phenomenon in the atomizer core.

[0057] In addition, in this embodiment, compared with the soft liquid storage cotton, since the glass fiber tube 4 is a hard liquid guide structure, during the process of making the atomizer core, the glass fiber tube 4 can be directly sleeved on the outer wall of the bracket sleeve 3 (such as Figure 2-3 As shown), there is no need to perform cumbersome cotton wrapping operations on the periphery of the bracket sleeve 3, thereby improving the production efficiency of the atomizer core.

[0058] Furthermore, in some optional embodiments of the present application, the wall thickness of the glass fiber tube 4 is 0.1mm to 0.6mm, wherein, in a specific implementation, the wall thickness of the glass fiber tube 4 can be 0.1mm, 0.2mm, 0.3mm, 0.4mm, 0.5mm, 0.6mm, etc. Such a setting can, on the one hand, avoid the wall thickness of the glass fiber tube 4 being set too thin (less than 0.1mm) and increasing the difficulty of manufacturing the glass fiber tube 4, thereby increasing the cost of using the glass fiber tube 4, and on the other hand, avoid the wall thickness of the glass fiber tube 4 being set too thick (greater than 0.6mm) and causing the atomized liquid to flow into the liquid guide cotton 1 too slowly, thereby increasing the risk of liquid shortage and dry burning of the heating element 2. That is, by setting the wall thickness of the glass fiber tube 4 to 0.1-0.6 mm, this embodiment not only reduces the manufacturing difficulty of the glass fiber tube 4, thereby reducing the use cost of the glass fiber tube 4; but also enables the atomized liquid to flow into the liquid guide cotton 1 at a more appropriate flow rate, thereby effectively reducing the risk of "liquid flying" in the atomizer core and the risk of dry burning of the heating element 2 due to lack of liquid, so that users can obtain a better smoking experience.

[0059] Further, please refer to Figure 2 and Figure 4 In some optional embodiments of the present application, the heating element 2 is arranged on the inner wall of the liquid-conducting cotton 1. Such an arrangement can increase the contact area between the heating element 2 and the liquid-conducting cotton 1, thereby improving the atomization efficiency of the atomizer core. In particular, when the heating element 2 is arranged on the inner wall of the liquid-conducting cotton 1, the heating element 2 can be an open-loop structure with a "C"-shaped cross section, or a closed-loop structure with a circular or elliptical cross section. As long as it can meet the use requirements, this embodiment does not impose any specific restrictions on the specific shape of the heating element 2.

[0060] Further, please refer to Figure 4 In some exemplary embodiments of the present application, the atomizer core further includes a positive electrode pin 51 and a negative electrode pin 52, and the heating element 2 has a first end 21 and a second end 22 opposite each other, the positive electrode pin 51 being electrically connected to the first end 21, and the negative electrode pin 52 being electrically connected to the second end 22. In this embodiment, the arrangement of the positive electrode pin 51 and the negative electrode pin 52 facilitates the electrical connection of the heating element 2 to the positive and negative electrodes of the atomizer in some application scenarios where the atomizer core of this embodiment is applied to an atomizer; and in some application scenarios where the atomizer core of this embodiment is applied to an electronic atomizer device, facilitates the electrical connection of the heating element 2 to the power supply assembly of the electronic atomizer device. In this embodiment, it should be noted that when the heating element 2 presents an open ring structure with a "C" shape in cross section, the first end 21 and the second end 22 of the heating element 2 can be the two ends of the heating element 2 along its own circumference; when the heating element 2 presents an open ring structure with a circular cross section, the first end 21 and the second end 22 of the heating element 2 can be the two ends of the heating element 2 along its own height direction.

[0061] Further, please refer to Figure 2-4 In some exemplary embodiments of the present application, the bracket sleeve 3 includes an internal hollow sleeve portion 30 and an internal hollow first shoulder portion 31. The outer diameter of the sleeve portion 30 is smaller than the outer diameter of the first shoulder portion 31. One end of the sleeve portion 30 is connected to an end surface of the first shoulder portion 31 as a whole. A first liquid inlet hole 301 and at least one slit 302 spaced apart from the first liquid inlet hole 301 are provided on the side wall of the sleeve portion 30. The slit 302 extends along the axial direction of the sleeve portion 30 and passes through at least one end surface of the sleeve portion 30 facing away from the first shoulder portion 31. The sleeve portion 30 is sleeved on the outer wall of the liquid-guiding cotton 1, and the fiberglass tube 4 is sleeved on the outer wall of the sleeve portion 30 and abuts against the first shoulder portion 31.

[0062] In this embodiment, the setting of the slit 302 allows the heating element 2 wrapped with the liquid-conducting cotton 1 to be easily installed in the bracket sleeve 3, and the setting of the first shaft shoulder 31 can play a positioning role in the installation of the glass fiber tube 4, so that the glass fiber tube 4 can be quickly installed in place. Specifically, in some application scenarios of making the atomizing core of this embodiment (for the convenience of explanation, it is assumed that the heating element 2 is a heating mesh made of nickel-chromium alloy material), you can first prepare a round rod, a heating mesh with two pins, a strip of liquid-conducting cotton 1, a bracket sleeve 3 and a glass fiber tube 4; then place the heating mesh on one side surface of the liquid-conducting cotton 1 and place the round rod on the heating mesh; then dock the two ends of the liquid-conducting cotton 1 so that the liquid-conducting cotton 1 forms a "tail", and pinch the liquid-conducting cotton 1 with your hand. The "tail" is pulled hard so that the heating mesh and the liquid-conducting cotton 1 both wrap around the outer surface of the round rod; then the round rod is pulled out and the liquid-conducting cotton 1 with the heating mesh connected to the inner wall is inserted into the sleeve portion 30 of the bracket sleeve 3, so that the "tail" of the liquid-conducting cotton 1 is exposed from a slit 302 of the sleeve portion 30 and the two pins of the heating mesh are exposed from the lower end of the bracket sleeve 3; then the "tail" of the liquid-conducting cotton 1 is cut off with scissors; finally, the fiberglass tube 4 is sleeved on the outer wall of the sleeve portion 30 to obtain the atomizing core structure of this embodiment.

[0063] Further, please refer to Figure 1-4 In some exemplary embodiments of the present application, a second shoulder portion 32 is convexly provided on the outer wall of the end of the first shoulder portion 31 facing away from the sleeve portion 30. The atomizer core further includes an airway tube 7, and at least one second liquid inlet hole 70 is opened on the side wall of the airway tube 7. One end of the airway tube 7 is sleeved on the outer wall of the first shoulder portion 31 and abuts against the second shoulder portion 32. The fiberglass tube 4 is located between the sleeve portion 30 and the airway tube 7, and the outer wall of the fiberglass tube 4 covers each second liquid inlet hole 70. There is a height difference between the end face of the airway tube 7 facing away from the second shoulder portion 32 and the end face of the sleeve portion 30 facing away from the first shoulder portion 31. It should be noted here that in some optional embodiments, in order to prevent the airway tube 7 from being corroded by the atomized liquid, the material of the airway tube 7 can be a metal material with good corrosion resistance, such as stainless steel, nickel-chromium alloy, etc.

[0064] In this embodiment, based on the above structural design, as Figure 5 As shown, in some application scenarios where the atomizer core of this embodiment is applied to a nebulizer, the setting of the airway tube 7 can facilitate the installation of the entire atomizer core inside the nebulizer for use, wherein the setting of the second axial shoulder 32 can facilitate the insertion of the atomizer core structure including the fiberglass tube 4, the bracket sleeve 3, the liquid-guiding cotton 1 and the heating element 2 from the lower end of the airway tube 7 to a designated position inside the airway tube 7, so that the atomized liquid can pass through the second liquid inlet hole 70, the side wall of the fiberglass tube 4, and the first liquid inlet hole 301 in sequence and flow into the liquid-guiding cotton 1.

[0065] Further, please refer to Figure 2 and Figure 4 In some exemplary embodiments of the present application, the interior of the airway tube 7 is formed with a first airway 71, a second airway 72, a third airway 73 and a fourth airway 74 located between the end surface of the airway tube 7 away from the second axial shoulder 32 and the end surface of the sleeve portion 30 away from the first axial shoulder 31. The first airway 71, the second airway 72, the third airway 73 and the fourth airway 74 are connected in sequence from bottom to top along the axial direction of the airway tube 7. The inner diameter of the first airway 71 is uniformly set, the inner diameter of the second airway 72 gradually decreases from bottom to top along the axial direction of the airway tube 7, the inner diameter of the third airway 73 is uniformly set, and the inner diameter of the fourth airway 74 gradually increases from bottom to top along the axial direction of the airway tube 7, and the inner diameter of the air inlet end of the second airway 72 is equal to the inner diameter of the first airway 71, and the inner diameter of the air outlet end of the second airway 72 and the inner diameter of the air inlet end of the fourth airway 74 are both equal to the inner diameter of the third airway 73.

[0066] In this embodiment, based on the above structural design, in some application scenarios where the atomizing core of this embodiment is applied to the atomizer, since the inner diameter of the first air channel 71 is uniform and larger than the inner diameter of the liquid-guiding cotton 1, the inner diameter of the second air channel 72 gradually decreases from bottom to top after connecting with the first air channel 71, the inner diameter of the third air channel 73 remains unchanged after connecting with the second air channel 72, and the inner diameter of the fourth air channel 74 gradually increases from bottom to top after connecting with the third air channel 73. Therefore, when the heating element 2 heats and atomizes the atomized liquid adsorbed on the inner wall of the liquid-guiding cotton 1, the aerosol generated is discharged from the upper end of the channel 10 of the liquid-guiding cotton 1. The aerosol will first be diffused by the first air channel 71, then collected by the second air channel 72, and then compressed by the third air channel 73 to accelerate its own flow rate, and then diffused by the fourth air channel 74, so that the aerosol will be sprayed into the mouthpiece 811 of the atomizer from the air outlet end of the fourth air channel 74 in a divergent manner. In this way, when the user bites the mouthpiece 811 to inhale, the aerosol inhaled by the user is the diffused aerosol rather than the concentrated aerosol. Therefore, it can avoid the aerosol from flowing into the user's mouth too concentratedly and causing the user to have an unpleasant experience of "burning the mouth".

[0067] In this embodiment, it should be noted that, in some optional embodiments, the inner wall of the second air channel 72 transitions to the inner wall of the third air channel 73 in a circular arc. With such a configuration, when condensate is generated on the inner wall of the suction nozzle 811 due to condensation of the aerosol, the condensate can more smoothly flow back along the inner wall of the fourth air channel 74, the inner wall of the third air channel 73, the inner wall of the second air channel 72 and the inner wall of the first air channel 71 in sequence to the space between the first liquid inlet hole 301 and the second liquid inlet hole 70 for recycling, and is not easy to drip into the channel 10 of the liquid-guiding cotton 1, thereby reducing the risk of condensate leakage in the atomizer.

[0068] For further information, please refer to Figure 2 and Figure 5 In some exemplary embodiments of the present application, a sealing ring 6 is sleeved on the outer wall of the end of the airway tube 7 that is away from the second shaft shoulder 32. In this embodiment, in some application scenarios where the atomizer core of this embodiment is used in an atomizer, the provision of the sealing ring 6 can improve the sealing between the upper end outer wall of the airway tube 7 and the inner wall of the atomizer housing 81, thereby reducing the risk of liquid leakage in the atomizer.

[0069] For further information, please refer to Figure 2 and Figure 5 In some exemplary embodiments of the present application, an annular shoulder 75 is provided on the outer wall of the airway tube 7 along the axial direction thereof, located between the second liquid inlet hole 70 and the second shoulder portion 32. In this embodiment, in some application scenarios where the atomizer core of this embodiment is used in an atomizer, the provision of the annular shoulder 75 can improve the sealing between the lower outer wall of the airway tube 7 and the base 82 of the atomizer, thereby further reducing the risk of liquid leakage from the atomizer.

[0070] Correspondingly, please refer to Figure 5 The embodiment of the present application further provides an atomizer, which includes a housing 81 and an atomizer core (such as Figure 1-4 As shown), a liquid storage chamber 810 for storing atomized liquid is provided in the shell 81, a suction nozzle 811 is provided at one end of the shell 81, and the atomizing core is installed in the shell 81, wherein the channel 10 of the liquid-guiding cotton 1 is connected to the suction nozzle 811, and the side wall of the glass fiber tube 4 is connected to the liquid storage chamber 810. In some specific embodiments, when making Figure 5 When using the atomizer shown in the figure, the lower end of the airway tube 7 can be inserted into the upper end of the base 82 made of silicone material, and then the two electrode pins of the heating element 2 are electrically connected to the two conductive nails (the two conductive nails can be used as the positive and negative poles of the atomizer) provided on the bottom surface of the base 82 by crimping, welding, etc., finally, the upper end of the base 82 is tightly matched with the lower end of the shell 81 and the upper end of the airway tube 7 is plugged into the lower end of the nozzle 811, so that a complete atomizer can be obtained.

[0071] In this embodiment, thanks to the improvement of the above-mentioned atomizer core, the atomizer provided in this embodiment has the same technical effects as the above-mentioned atomizer core, which will not be described in detail here.

[0072] Correspondingly, an embodiment of the present application further provides an electronic atomization device, which includes a power supply assembly 9 and an atomization core in any of the above embodiments, and the power supply assembly 9 is electrically connected to the heating element 2. In some specific embodiments, the power supply assembly 9 may specifically include a housing and a battery and a control circuit board installed in the housing, and the control circuit board is electrically connected to the heating element 2 and the battery respectively. The control circuit board can control the battery to supply power to the heating element 2 or stop supplying power to the heating element 2, thereby controlling the heating element 2 to be powered on or powered off and stopped.

[0073] In this embodiment, thanks to the improvement of the above-mentioned atomizer core, the electronic atomizer device provided in this embodiment has the same technical effects as the above-mentioned atomizer core, which will not be described in detail here. It should be noted that in some specific application scenarios, the electronic atomizer device provided in this embodiment can be a disposable electronic cigarette or a cartridge-type electronic cigarette. The specific structural form of the electronic atomizer device can be determined according to the use requirements, and this embodiment does not impose specific restrictions on this.

[0074] It should also be noted that other contents of the atomizer core, atomizer and electronic atomization device disclosed in this application can be found in the prior art and will not be repeated here.

[0075] The above are only preferred embodiments of the present application and do not limit the patent scope of the present application. All equivalent structural transformations made based on the contents of the present application specification and drawings, or direct / indirect applications in other related technical fields, are included in the patent protection scope of the present application.

Claims

1. An atomizer core, characterized in that: include: The liquid-conducting cotton is arranged in an enclosed manner to form a channel; a heating element, disposed in the channel and in contact with the inner wall of the liquid-guiding cotton; A bracket sleeve, having at least one first liquid inlet hole formed on its side wall, wherein the bracket sleeve is sleeved on the outer wall of the liquid-conducting cotton and the outer wall of the liquid-conducting cotton covers each of the first liquid inlet holes; and The glass fiber tube is sleeved on the outer wall of the bracket sleeve and covers each of the first liquid inlet holes.

2. The atomizer core according to claim 1, characterized in that The wall thickness of the glass fiber tube is 0.1 mm to 0.6 mm.

3. The atomizer core according to claim 1, characterized in that The heating element is arranged on the inner wall of the liquid-guiding cotton; And / or, the heating element includes any one of a spiral metal heating wire and a metal heating mesh.

4. The atomizer core according to any one of claims 1 to 3, characterized in that: The atomizer core further includes a positive electrode pin and a negative electrode pin. The heating element has a first end and a second end opposite to each other. The positive electrode pin is electrically connected to the first end, and the negative electrode pin is electrically connected to the second end.

5. The atomizer core according to any one of claims 1 to 3, characterized in that: The bracket sleeve includes an internal hollow sleeve portion and an internal hollow first shoulder portion, the outer diameter of the sleeve portion is smaller than the outer diameter of the first shoulder portion, one end portion of the sleeve portion is integrally connected to one end surface of the first shoulder portion, the side wall of the sleeve portion is provided with the first liquid inlet hole and at least one slit spaced apart from the first liquid inlet hole, the slit extends axially along the sleeve portion and passes through at least one end surface of the sleeve portion away from the first shoulder portion, the sleeve portion is sleeved on the outer wall of the liquid-guiding cotton, and the fiberglass tube is sleeved on the outer wall of the sleeve portion and abuts against the first shoulder portion.

6. The atomizer core according to claim 5, characterized in that A second shoulder is protruded from the outer wall of one end of the first shoulder portion facing away from the sleeve portion. The atomizer core further comprises an airway tube, and at least one second liquid inlet hole is formed on the side wall of the airway tube. One end portion of the airway tube is sleeved on the outer wall of the first shoulder portion and abuts against the second shoulder portion. The fiberglass tube is located between the sleeve portion and the airway tube, and the outer wall of the fiberglass tube covers each of the second liquid inlet holes. There is a height difference between an end surface of the airway tube facing away from the second shoulder and an end surface of the sleeve portion facing away from the first shoulder.

7. The atomizer core according to claim 6, characterized in that The interior of the airway tube is formed with a first airway, a second airway, a third airway and a fourth airway located between an end face of the airway tube away from the second axial shoulder and an end face of the sleeve portion away from the first axial shoulder. The first airway, the second airway, the third airway and the fourth airway are connected in sequence from bottom to top along the axial direction of the airway tube. The inner diameter of the first airway is uniformly set, the inner diameter of the second airway gradually decreases from bottom to top along the axial direction of the airway tube, the inner diameter of the third airway is uniformly set, and the inner diameter of the fourth airway gradually increases from bottom to top along the axial direction of the airway tube, and the inner diameter of the air inlet end of the second airway is equal to the inner diameter of the first airway, and the inner diameter of the air outlet end of the second airway and the inner diameter of the air inlet end of the fourth airway are both equal to the inner diameter of the third airway.

8. The atomizer core according to claim 7, characterized in that: The inner wall of the second air channel transitions to the inner wall of the third air channel in an arc; And / or, a sealing ring is sleeved on the outer wall of one end of the airway tube away from the second shaft shoulder; And / or, along the axial direction of the airway tube, an annular shoulder is protrudingly provided on the outer wall of the airway tube and is located between the second liquid inlet hole and the second shoulder portion.

9. An atomizer, characterized in that: The invention comprises a shell and an atomizer core according to any one of claims 1 to 8, wherein a liquid storage chamber for storing atomized liquid is provided in the shell, a suction nozzle is provided at one end of the shell, and the atomizer core is installed in the shell, wherein the channel is connected to the suction nozzle, and the side wall of the glass fiber tube is connected to the liquid storage chamber.

10. An electronic atomization device, characterized in that: It comprises a power supply component and the atomizer core according to any one of claims 1 to 8, wherein the power supply component is electrically connected to the heating element.

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