WO2023138216A1

WO2023138216A1 - Electronic atomization device, atomizer and atomization core thereof

Info

Publication number: WO2023138216A1
Application number: PCT/CN2022/134781
Authority: WO
Inventors: 刘伟; 唐根初
Original assignee: 深圳麦克韦尔科技有限公司
Priority date: 2022-01-23
Filing date: 2022-11-28
Publication date: 2023-07-27
Also published as: CN118434310A; CN114568752A

Abstract

An electronic atomization device (100), an atomizer (1) and an atomization core (12) thereof. The atomization core (12) comprises a liquid transfer member (121) having an atomization surface (128) and a liquid absorption surface (127) and used for transferring a substrate to be atomized from the liquid absorption surface (127) to the atomization surface (128); and a heating member (122) arranged on the atomization surface (128) and used for heating and thus atomizing said substrate to generate an aerosol, wherein the liquid transfer member (121) further has an aerosol transfer structure (123), the aerosol transfer structure (123) comprises grooves (125) and/or blind holes (126) arranged in the atomization surface (128), and is arranged around the heating member (122). The aerosol transfer structure (123) is arranged at a portion of the liquid transfer member (121) close to the heating member (122), and directionally transfers aerosol generated by means of heating and atomization by the heating member (122), so that contact is reduced between the aerosol and the heating member (122), thereby preventing tar dirt formed by carbonization of the aerosol on the high-temperature heating member (122), and preventing a dry burning phenomenon of the heating member (122). Furthermore, by providing the aerosol transfer structure (123), a transmission distance of said substrate can be shortened and a liquid transfer rate is increased, so that the dry burning phenomenon of the heating member (122) is further prevented, thereby prolonging a service life.

Description

Electronic atomization device, atomizer and atomizing core thereof

Cross References to Related Applications

This application claims the priority of Chinese patent application 202210076048.5 filed on January 23, 2022, the entire contents of which are incorporated herein by reference.

technical field

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

Background technique

There are dozens of carcinogenic substances in the aerosol generated by the combustion of the atomized substrate, such as tar, which will cause great harm to human health. Moreover, the aerosol diffuses in the air and forms harmful substances, which will also cause harm to the surrounding people after inhalation. Therefore, in order to meet the needs of some users, electronic atomization devices came into being.

The electronic atomization device in the prior art is mainly composed of an atomizer and a power supply assembly. Among them, the atomizing core in the atomizer is the core component, and the atomizing core is mainly used to heat and atomize the substrate to be atomized to generate aerosol for users to use. The atomizing core mainly includes a porous substrate and a heating body. At present, the atomizing core is mainly made of cotton material, metal wire, porous ceramic substrate and heating film. Among them, porous ceramic substrates are widely used in electronic atomization devices. After a long time of pumping, a large amount of oil dirt is likely to be generated around the heating film, especially the substrate to be atomized with a high viscosity, so that there are adverse phenomena such as reduced oil conduction rate, burnt smell and dry burning, which affect the taste.

Contents of the invention

The main technical problem to be solved by the present application is to provide an electronic atomization device, an atomizer and its atomization core, which solves the problem of easy generation of oil dirt around the heating film of the atomization core in the prior art.

In order to solve the above-mentioned technical problems, the first technical solution adopted in this application is: provide an atomizing core, the atomizing core includes: a liquid guiding part, which has an atomizing surface and a liquid absorbing surface, and is used to conduct the substrate to be atomized from the liquid absorbing surface to the atomizing surface; a heating element, arranged on the atomizing surface, is used to heat and atomize the substrate to be atomized to generate an aerosol; wherein, the liquid guiding part also has an air guiding structure;

Wherein, the distance between the air guide structure and the heating element is greater than 0 and not more than 3 millimeters.

Wherein, the air guide structure includes a plurality of blind holes, and the plurality of blind holes are sequentially distributed along the edge of the heating element.

Wherein, the air guide structure includes a groove, and the groove extends along the edge of the heating element.

Wherein, the diameter of the blind hole and/or the width of the groove is greater than or equal to 0.05 mm and less than or equal to 3 mm.

Wherein, the atomizing surface and the liquid-absorbing surface are arranged oppositely, and the ratio between the depth of the blind hole and/or the groove and the distance between the atomizing surface and the liquid-absorbing surface is 1:10-9:10.

Wherein, the longitudinal section of the groove and/or the blind hole perpendicular to the direction of the atomizing surface is rectangular, trapezoidal or arc-shaped.

Wherein, the groove and/or the blind hole is a constricted structure, and the cross section of the groove and/or the blind hole gradually decreases along the escape direction of the aerosol.

In order to solve the above-mentioned technical problems, the second technical solution adopted by the present application is to provide an atomizer, which includes the above-mentioned atomizing core.

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

The beneficial effects of the present application are: different from the situation in the prior art, an electronic atomization device, an atomizer and its atomizing core are provided. The atomizing core includes a liquid guide, has an atomization surface and a liquid absorption surface, and is used to conduct the substrate to be atomized from the liquid absorption surface to the atomization surface; the heating element is arranged on the atomization surface, and is used to heat and atomize the substrate to be atomized to generate an aerosol; wherein, the liquid guide also has an air guide structure; In this application, an air-guiding structure is provided on the part of the liquid-guiding element close to the heating element, and the atomized aerosol is heated and atomized through the air-guiding structure, which conducts the heating element in a directional manner, thereby reducing the contact between the aerosol and the heating element, thereby preventing the aerosol from carbonizing on the high-temperature heating element.

Description of drawings

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

Fig. 1 is a schematic structural diagram of an embodiment of an atomizing core in the prior art;

Fig. 2 is a schematic structural diagram of an embodiment of an electronic atomization device provided by the present application;

Fig. 3 is a schematic view of the longitudinal section of an embodiment of the atomizer in the electronic atomization device provided by the present application;

Fig. 4 is a schematic structural view of an embodiment of the mounting seat provided by the present application;

Fig. 5 is a schematic structural diagram of the first embodiment of the atomizing core provided by the present application;

Fig. 6 is a top view of the atomizing core in Fig. 5;

Fig. 7 is a top view of another embodiment of the atomizing core provided by the present application;

Fig. 8 is a schematic structural diagram of the second embodiment of the atomizing core provided by the present application;

Fig. 9 is a schematic structural view of the third embodiment of the atomizing core provided by the present application;

Fig. 10 is a schematic structural view of the fourth embodiment of the atomizing core provided by the present application;

Fig. 11 is a schematic structural diagram of the fifth embodiment of the atomizing core provided by the present application.

Detailed ways

The solutions of the embodiments of the present application will be described in detail below in conjunction with the accompanying drawings.

In the following description, for purposes of illustration rather than limitation, specific details, such as specific system architectures, interfaces, and techniques, are set forth in order to provide a thorough understanding of the present application.

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 this application are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly specifying 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. All directional indications (such as up, down, left, right, front, rear...) in the embodiments of the present application are only used to explain the relative positional relationship and movement conditions among the various components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indication will also change accordingly. 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 also includes other steps or units inherent to 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.

Please refer to FIG. 1 . FIG. 1 is a structural diagram of an embodiment of an atomizing core in the prior art.

The inventor found during the research process that the micropores 124 on the porous ceramic substrate 120 in the atomizing core 12 are relatively small in diameter, and generally the diameter of the micropores 124 is only 10 to 50 microns. When the heating element 122 in the atomizing core 12 continues to work and generate heat, a high-temperature area will be formed in the heating element 122 and its surroundings. The aerosol generated by the atomization of the substrate to be atomized is diffused from the micropores 124 on the porous ceramic substrate 120 due to the high temperature. Part of the aerosol that escapes from the micropores 124 distributed around the heating element 122 has the opportunity to contact and adhere to the heating element 122. This part of the aerosol will be heated and carbonized by the high-temperature heating element 122, and form grease on the heating element 122 and its surroundings.

Therefore, the inventors of the present application provide an atomizing core with directional air conduction, as well as an atomizer and an electronic atomization device using the atomizing core, thereby reducing the formation of grease on the atomizing core and increasing the oil conduction rate of the porous ceramic substrate to avoid dry burning.

Please refer to FIG. 2 . FIG. 2 is a schematic structural diagram of an embodiment of an electronic atomization device provided by the present application.

As shown in FIG. 2 , the electronic atomization device 100 can be used for atomizing liquid substrates. The electronic atomization device 100 includes an atomizer 1 and a power supply assembly 2 connected to each other. The atomizer 1 is used to store the substrate to be atomized and atomize the substrate to be atomized to form an aerosol that can be inhaled by the user. The substrate to be atomized can be a liquid substrate such as liquid medicine, plant grass liquid, etc. The atomizer 1 can be used in different fields, such as medical treatment, beauty, electronic aerosolization and other fields. The power supply assembly 2 includes a battery (not shown in the figure), an airflow sensor (not shown in the figure), and a controller (not shown in the figure); the battery is used to supply power to the atomizer 1, so that the atomizer 1 can atomize the substrate to be atomized to form an aerosol; the airflow sensor is used to detect the airflow change in the electronic atomization device 100, and the controller starts the electronic atomization device 100 according to the airflow change detected by the airflow sensor. The atomizer 1 and the power supply assembly 2 can be fixed, such as welded connection, integrated, etc.; can also be detachable connection, such as snap connection, screw connection, magnetic suction connection, etc., and design according to specific needs. Of course, the electronic atomization device 100 also includes other components in the existing electronic atomization device 100, such as microphones, brackets, etc. The specific structures and functions of these components are the same or similar to those of the prior art. For details, please refer to the prior art and will not repeat them here.

Please refer to FIG. 3 . FIG. 3 is a schematic longitudinal cross-sectional structural diagram of an embodiment of the atomizer in the electronic atomization device provided by the present application.

As shown in FIG. 3 , the atomizer 1 includes a housing 11 , an atomizing core 12 , a mounting seat 15 , a first sealing member 16 and a second sealing member 17 . One end of the housing 11 serves as a suction nozzle 10, from which the user sucks the substance to be atomized to generate an aerosol. The casing 11 has an installation space 18 , the installation seat 15 is accommodated in the installation space 18 , and is fixedly connected to the inner surface of the installation space 18 through the first sealing member 16 . The installation base 15 cooperates with a part of the inner wall of the installation space 18 to form a liquid storage chamber 111, and the liquid storage chamber 111 is used to store the substance to be atomized. The mounting seat 15 has a mounting cavity 19 , the atomizing core 12 is accommodated in the mounting cavity 19 , and the atomizing core 12 is fixedly connected to the mounting seat 15 through the second sealing member 17 . The atomizing core 12 has a liquid-absorbing surface 127 and an atomizing surface 128 oppositely arranged, and the atomizing surface 128 cooperates with the inner wall surface of the installation cavity 19 to form the atomizing cavity 20 . Wherein, the atomizing core 12 is electrically connected with the power supply assembly 2 to heat and atomize the substrate to be atomized.

The casing 11 includes a first annular sidewall 112 and a first top wall 113 connected to one end of the first annular sidewall 112 . The first annular side wall 112 cooperates with the first top wall 113 to form the installation space 18 . An end of the installation space 18 away from the first top wall 113 is open. An air outlet hole 114 is disposed on the first top wall 113 , and an edge of the air outlet hole 114 extends into the installation space 18 to form the air guide channel 13 . The air guide channel 13 is integrally formed with the housing 11 . Wherein, the cross section of the installation space 18 may be oval or rectangular, that is to say, the cross section of the installation space 18 has a length direction and a width direction. In other optional embodiments, the cross section of the installation space 18 may be circular.

Please refer to FIG. 4 . FIG. 4 is a schematic structural diagram of an embodiment of the mounting seat provided by the present application.

The installation base 15 is installed on a portion of the installation space 18 away from the first top wall 113 . The mounting base 15 includes an upper base body 151 and a lower base body 152 matched with the upper base body 151 , and the lower base body 152 is disposed on a side of the upper base body 151 away from the first top wall 113 . The upper base body 151 is fixedly connected to the inner side wall of the installation space 18 , and the inner wall surface of the installation space 18 close to the first top wall 113 cooperates with the outer wall of the upper base body 151 to form the liquid storage chamber 111 . The liquid storage cavity 111 surrounds the periphery of the air guide channel 13 . The upper seat body 151 and the lower seat body 152 are arranged in cooperation to form the receiving chamber 115 . The receiving cavity 115 is used for receiving the atomizing core 12 . Specifically, the upper base body 151 is provided with a lower liquid hole 1511 and a vent hole 1512, and the lower liquid hole 1511 and the vent hole 1512 are arranged at intervals. One end of the air guide channel 13 away from the air outlet hole 114 is connected to the air hole 1512 . Specifically, the end of the air guide channel 13 away from the air outlet hole 114 communicates with the air hole 1512 through the first sealing member 16 to avoid air leakage between the air guide channel 13 and the air hole 1512 of the upper base 151 . The air guiding channel 13 communicates with the receiving cavity 115 through the vent hole 1512 . The atomizing core 12 covers the lower liquid hole 1511 , and the periphery of the atomizing core 12 is in close contact with the inner wall of the lower liquid hole 1511 through the second sealing member 17 , so as to prevent the substance to be atomized from the liquid storage chamber 111 from leaking out. In a specific embodiment, the second sealing member 17 is a sealing ring, and has a groove on the end surface away from the liquid storage chamber 111 , the atomizing core 12 is embedded in the groove of the second sealing member 17 , and the atomizing surface 128 of the atomizing core 12 is on the same plane as the end surface of the second sealing member 17 away from the liquid storage chamber 111 . In this embodiment, the lower base body 152 includes a bottom wall 1521 on which a connecting portion 1522 is disposed, and the bottom wall 1521 is engaged with the upper base body 151 through the connecting portion 1522 to form the above-mentioned receiving cavity 115 .

Please refer to Fig. 5 and Fig. 6, Fig. 5 is a schematic structural diagram of the first embodiment of the atomizing core provided by the present application, and Fig. 6 is a top view of the atomizing core in Fig. 5 .

As shown in FIG. 5 , the atomizing core 12 includes a liquid guiding element 121 and a heating element 122 disposed on the liquid guiding element 121 . The liquid guiding element 121 has an atomizing surface 128 and a liquid absorbing surface 127 . The heating element 122 is disposed on the atomizing surface 128 of the liquid guiding element 121 , and the surface of the liquid guiding element 121 not provided with the heating element 122 serves as the liquid absorbing surface 127 . In a specific embodiment, the liquid absorbing surface 127 is opposite to the atomizing surface 128 . The liquid absorption surface 127 has a groove 125 to increase the area of the liquid absorption surface 127 . The liquid guide 121 is used to transfer the substance to be atomized stored in the liquid storage chamber 111 to the atomization surface 128 of the liquid guide 121 through the liquid absorption surface 127 of the liquid guide 121, so that the substance to be atomized can be heated and atomized by the heating element 122 provided on the atomization surface 128 to form an aerosol. Wherein, the liquid guiding element 121 is a porous matrix. The heating element 122 can be a metal film, a metal mesh or a metal wire, etc., and its shape and structure are not limited. In this embodiment, the heating element 122 may be an S-shaped metal film. Both ends of the heating element 122 are respectively provided with pins 14 , and the two ends of the heating element 122 are connected to the positive pole and the negative pole of the power supply component 2 through the pins 14 , so as to realize the power supply of the power supply component 2 to the heating element 122 .

In this embodiment, the heating element 122 is disposed on the surface of the atomizing surface 128 on the liquid guiding element 121 . In other embodiments, the heating element 122 may also be partially or fully embedded in the atomizing surface 128 of the liquid guiding element 121 .

In a specific embodiment, the liquid guiding element 121 may be a rectangular block, the cross-sectional shape of the liquid guiding element 121 is rectangular, and the atomizing surface 128 and the liquid absorbing surface 127 are the outer surfaces of the rectangular block. For example, the upper surface of the rectangular block is the atomizing surface 128 , the lower surface of the rectangular block is the liquid-absorbing surface 127 , and the sides of the rectangular block are annularly arranged between the atomizing surface 128 and the liquid-absorbing surface 127 . In one embodiment, a flange is provided on the side of the rectangular block to facilitate the installation of the atomizing core 12 on the mounting seat 15 .

In this embodiment, the liquid guide 121 may be a ceramic porous body, which has a plurality of irregular micropores 124, and the size and distribution of these micropores 124 are caused by the preparation process of the ceramic porous body. In the present application, an air guiding structure 123 is also provided on the liquid guiding member 121 , and the air guiding structure 123 may be a specially designed regular structure with a size larger than that of the micropore 124 . The liquid guide 121 can also be at least one of porous ceramics, porous carbon, porous glass, porous metal and porous polymer material. Wherein, the porous ceramics may be selected from at least one of porous alumina ceramics, porous cordierite ceramics, porous diatomite ceramics and porous silicon carbide ceramics.

The air-guiding structure 123 provided on the liquid-guiding element 121 can direct the aerosol formed after the atomization of the substrate to be atomized to the atomizing chamber 20, thereby reducing the contact between the aerosol and the heating element 122, thereby preventing the aerosol from falling on the high-temperature heating element 122 and being carbonized to form grease, and preventing the heating element 122 from being dry-burned. Wherein, the air guiding structure 123 is arranged close to the heating element 122 on the liquid guiding element 121 . Since the temperature near the heating element 122 is relatively high, an air guiding structure 123 is provided near the heating element 122 . Such an air guiding structure 123 can increase the area of the atomizing surface 128, shorten the distance from the substrate to be atomized to the atomizing surface 128, thereby speeding up the oil guiding rate, thereby preventing the heating element 122 from burning dry.

The distance between the air guiding structure 123 and the heating element 122 is greater than 0 and less than or equal to 3 millimeters. The smaller the distance between the air guiding structure 123 and the heating element 122, the higher the rate at which the liquid guiding element 121 conducts the substance to be atomized. But air guiding structure 123 also can not be arranged with zero distance between heating element 122, the one, the limitation of technology, be difficult to guarantee not to damage heating element 122 when making air guiding structure 123, influence the service life of heating element 122; The heating element 122 is heated and carbonized to form grease that adheres to the heating element 122 and around the heating element 122, resulting in burnt smell. When the distance between the air-guiding structure 123 and the heating element 122 is too far, the heat diffused by the heating element 122 into the inner wall of the air-guiding structure 123 is not enough to heat and atomize the substrate to be atomized, thereby reducing the atomization efficiency. In one embodiment, the distance between the air guiding structure 123 and the heating element 122 is greater than 0 and less than or equal to 1 mm. The air guide structure 123 is close to the edge of the heating element 122 without damaging the heating element 122 , thereby ensuring the life of the heating element 122 .

Please refer to FIG. 7 . FIG. 7 is a top view of another embodiment of the atomizing core provided by the present application.

The air guiding structure 123 includes a groove 125 and/or a blind hole 126 . The air guide structure 123 can be any one or a combination of the groove 125 and the blind hole 126 . There are a plurality of blind holes 126 and/or grooves 125 respectively, and the plurality of blind holes 126 and/or grooves 125 are sequentially distributed along the arrangement direction of the heating element 122 or extend to the edge of the heating element 122 . The blind holes 126 and/or grooves 125 can be distributed on both sides of the heating element 122 on the atomizing surface 128 , or can be distributed on one side of the heating element 122 on the atomizing surface 128 . Wherein, a plurality of blind holes 126 and/or grooves 125 in the air guiding structure 123 are arranged at intervals. Specifically, intervals between the blind holes 126 and the blind holes 126 , between the grooves 125 and the grooves 125 , and between the blind holes 126 and the grooves 125 are required. Since the groove 125 and/or the blind hole 126 are arranged close to the heating element 122, the heat generated by the heating element 122 will spread to the inner wall of the groove 125 and/or the blind hole 126, and the inner wall of the groove 125 and/or the blind hole 126 will heat the substance to be atomized to generate an aerosol, thereby increasing the area of the atomization surface 128, and shortening the transmission distance of the substance to be atomized, thereby accelerating the transmission rate of the substance to be atomized.

In this embodiment, both the groove 125 and the blind hole 126 have capillary force. The air guide structure 123 communicates with the atomizing surface 128 . That is, openings of the groove 125 and the blind hole 126 are both facing the atomizing surface 128 on the liquid guide 121 .

As shown in Figure 7, in a specific embodiment, the air guiding structure 123 includes a groove 125, the groove 125 can be a blind groove 129 with both ends closed; the groove 125 can also be a semi-communicating groove 132 with one end being a closed end and the other end being an open end; or a through groove 130 with both ends being open. The groove 125 extends to the edge of the heating element 122 along the direction in which the heating element 122 is disposed. In one embodiment, the air guiding structure 123 is a plurality of blind slots 129 arranged at intervals along the direction in which the heating element 122 is arranged. In one embodiment, the air guide structure 123 is at least one blind slot 129 , through slot 130 or semi-connected slot 132 extending along the installation direction of the heating element 122 .

In a specific embodiment, the air guide structure 123 includes a plurality of blind holes 126 arranged at intervals and sequentially arranged along the direction in which the heating element 122 is arranged along the edge of the heating element 122 . The blind hole 126 cannot be a through hole, because the through hole will have a ventilation function, so that the gas in the atomization chamber 20 enters the liquid storage chamber 111 along the blind hole 126, which will affect the escape of aerosol from the gas guiding structure 123 in a columnar spray pattern.

Please refer to FIG. 8 . FIG. 8 is a schematic structural diagram of the second embodiment of the atomizing core provided by the present application.

The blind hole 126 can also be a U-shaped hole 131 with both ends facing the atomizing surface 128 .

In one embodiment, the blind holes 126 and/or the grooves 125 are distributed on both sides of the heating element 122 on the atomizing surface 128, so that the area of the atomizing surface 128 can be increased, and the atomization of the substrate to be atomized can be accelerated.

The diameter of the blind hole 126 and/or the width of the groove 125 is greater than or equal to 0.05 mm and less than or equal to 3 mm. If the diameter of the blind hole 126 and/or the width of the groove 125 are too large or too small, the shape of the aerosol in the air guide structure 123 will be affected. If the diameter of the blind hole 126 and/or the width of the groove 125 are too large, the aerosol will escape in a divergent shape. And through the conduction of the air-guiding structure 123, the aerosol still escapes in a divergent form through the micropores 124 of the liquid-guiding member 121, and the aerosol that escapes to the surroundings of the heating element 122 will be carbonized by the high-temperature heating element 122 to form grease.

In one embodiment, the diameter of the blind hole 126 and/or the width of the groove 125 is greater than or equal to 0.2 mm and less than or equal to 1 mm. In this way, the aerosol can better escape from the air guide structure 123 in a columnar spray pattern, avoiding contact between the aerosol and the heating element 122, and reducing the generation of grease.

The inventor believes that the aerosol formed by atomization escapes in a columnar jet type, so that the aerosol can quickly escape from the nearby area affected by the high temperature of the high temperature heating element 122, and reduce the probability of the aerosol being contacted with the high temperature heating element 122 and being carbonized to form grease. At the same time, the aerosol that escapes from the air guide structure 123 in a columnar jet can not only make itself quickly escape from the nearby area affected by the high temperature of the high-temperature heating element 122, but also quickly escape with the aerosol in a certain surrounding area.

Among them, the mechanism of the columnar spray type is that in the gas guiding structure 123, the substrate to be atomized is vaporized under the action of high temperature to form a high temperature and high pressure gas, and part of this gas is converted into an aerosol, and this part of the aerosol and the high temperature and high pressure gas overflows along the direction of the opening perpendicular to the atomizing surface 128 under the diversion of the gas guiding structure 123. Due to the diversion effect of the air guiding structure 123 , the consistency of its direction is better, and the escape to the angle between the atomizing surface 128 is avoided.

The longitudinal section shape of the blind hole 126 or the groove 125 perpendicular to the atomizing surface 128 is not limited, and the cross-sectional shape can be semicircle, semiellipse, rectangle, triangle, trapezoid, arc, etc.

In one embodiment, the atomizing surface 128 and the liquid-absorbing surface 127 of the liquid guide 121 are disposed opposite to each other, and the ratio between the depth of the blind hole 126 and/or the groove 125 and the distance from the atomizing surface 128 to the liquid-absorbing surface 127 is 1:10˜9:10. The ratio between the depth of the blind hole 126 and/or the groove 125 and the distance from the atomizing surface 128 to the liquid-absorbing surface 127 also affects the shape of the aerosol escape in the air-guiding structure 123 . When the depth of the blind hole 126 and/or the groove 125 increases gradually with respect to the distance from the atomizing surface 128 to the liquid-absorbing surface 127, the transmission path of the substance to be atomized is also gradually shortened, and the rate at which the gas guide structure 123 transmits the substance to be atomized will increase, that is, the diversion effect is also better. However, if the depth of the blind hole 126 and/or the groove 125 is too deep, it will also increase the difficulty of processing. At the same time, because it is far away from the heated area, the atomization effect is not ideal; In one embodiment, the ratio between the depth of the blind hole 126 and/or the groove 125 and the distance from the atomizing surface 128 to the liquid absorbing surface 127 is 3:10˜5:10. In a specific embodiment, the depth of the blind hole 126 and/or the groove 125 may be at least one of 0.2 mm, 0.5 mm, 1 mm, 1.2 mm, 2 mm and 3 mm.

Please refer to FIG. 9 and FIG. 10 , FIG. 9 is a schematic structural diagram of the third embodiment of the atomizing core provided by the present application, and FIG. 10 is a schematic structural diagram of the fourth embodiment of the atomizing core provided in the present application.

In this embodiment, the longitudinal section of the groove 125 and/or blind hole 126 perpendicular to the atomizing surface 128 is rectangular. It should be understood that in other embodiments, the longitudinal section of the groove 125 and/or blind hole 126 perpendicular to the atomizing surface 128 may be parallelogram, trapezoid or other structures. As shown in FIG. 9 , in one embodiment, the longitudinal section of the groove 125 and/or the blind hole 126 perpendicular to the atomizing surface 128 may be a parallelogram, and the side of the parallelogram away from the atomizing surface 128 is closer to the heating element 122 than the side on the atomizing surface 128. That is, the groove 125 and/or blind hole 126 extends obliquely towards the direction of the atomizing surface 128, and the port of the groove 125 and/or blind hole 126 on the atomizing surface 128 is located farther away from the heating element 122 than the port of the groove 125 and/or blind hole 126 near the liquid absorption surface 127, which can further prevent the aerosol that escapes from the air guide structure 123 from contacting the heating element 122.

As shown in FIG. 10 , in one embodiment, the groove 125 and/or blind hole 126 is vertical to the longitudinal section of the atomizing surface 128 in a trapezoidal structure, and the length of the side of the trapezoidal structure close to the atomizing surface 128 is less than the length of the side of the trapezoidal structure away from the atomizing surface 128, so that the substrate to be atomized can be transported to the inner side of the groove 125 and/or blind hole 126 for heating and atomization, shortening the transmission distance of the substance to be atomized to reach the atomizing surface 128, and at the same time by setting the groove of the trapezoidal structure 125 and/or blind holes 126 can reduce the risk of liquid leakage of the substance to be atomized through the air guide structure 123 .

It should be understood that, in other embodiments, the longitudinal section of the groove 125 and/or the blind hole 126 perpendicular to the atomizing surface 128 may be an isosceles trapezoid, an irregular trapezoid or a right-angle trapezoid. In one embodiment, the longitudinal section of the groove 125 and/or the blind hole 126 perpendicular to the atomizing surface 128 is an isosceles trapezoid. Wherein, one side of the right-angled trapezoid perpendicular to the atomizing surface 128 is farther away from the heating element 122 than the other side, so as to prevent the aerosol from escaping toward the heating element 122 . In one embodiment, the longitudinal section of the groove 125 and/or the blind hole 126 perpendicular to the atomizing surface 128 is an isosceles trapezoidal structure.

Further, the groove 125 and/or the blind hole 126 forms a constriction structure, which can increase the pressure of the aerosol that escapes from the air guide structure 123 and further prevents the aerosol that escapes from falling on the heating element 122 .

Please refer to FIG. 11 . FIG. 11 is a schematic structural diagram of a fifth embodiment of the atomizing core provided by the present application.

In one embodiment, the liquid guide 121 can be a hollow column, one of the atomizing surface 128 and the liquid absorption surface 127 is the outer surface of the hollow column, the other is the inner surface of the hollow column, and the side surfaces are the top and bottom surfaces of the hollow column.

As shown in FIG. 11 , in another embodiment, the liquid guiding element 121 is a hollow cylinder, the heating element 122 is disposed on the inner surface of the hollow cylinder, and the inner surface of the hollow cylinder is an atomizing surface 128 . The outer surface of the hollow cylinder is used to connect and absorb the substance to be atomized from the liquid storage chamber 111 , and the outer surface of the hollow cylinder is the liquid absorption surface 127 .

An air guiding structure 123 is arranged inside the hollow cylinder. The air guiding structure 123 includes a groove 125 and/or a blind hole 126 . Blind holes 126 and/or grooves 125 are provided on the atomizing surface 128 of the liquid guide 121 , and the blind holes 126 and/or grooves 125 are arranged on the atomizing surface 128 of the hollow cylinder and distributed around and close to the heating element 122 . Wherein the blind hole 126 and/or the groove 125 are only communicated with the atomizing surface 128 of the liquid guiding member 121, that is, the air guiding structure 123 is only connected with the atomizing surface 128 on the liquid guiding member 121, so that the substance to be atomized can be heated and atomized on the inner surface of the groove 125 and/or blind hole 126, which increases the area of the atomizing surface 128 and shortens the transmission distance of the substance to be atomized to reach the atomizing surface 128, thereby accelerating the transmission rate of the substance to be atomized. By setting the air guide structure 123, the aerosol formed by atomization can escape in a columnar spray type, reducing the escaped aerosol along the direction of the heating element 122 and adhering to the grease dirt formed by carbonization on the high-temperature heating element 122, and preventing the heating element 122 from dry burning.

In this embodiment, the liquid guide 121 with the air guide structure 123 can be made by injection molding, drilling or 3D printing. In an embodiment, the blind holes 126 and/or the grooves 125 in the air guiding structure 123 can be realized by laser drilling process, or other drilling modes can also be used.

In the electronic atomization device 100 provided in this embodiment, the atomization core 12 includes a liquid guiding element 121 and a heating element 122 . The liquid guiding part 121 has an atomizing surface 128 and a liquid absorbing surface 127, which is used to conduct the substrate to be atomized from the liquid absorbing surface 127 to the atomizing surface 128; the heating element 122 is arranged on the atomizing surface 128, and is used to heat and atomize the substrate to be atomized to generate an aerosol; wherein, the liquid guiding part 121 also has an air guiding structure 123; the air guiding structure 123 includes a groove 125 and/or a blind hole 126 arranged on the atomizing surface 128, and is close to the heating element 1 22 are set; the air guide structure 123 is used for directional conducting aerosol. In this application, the gas guide structure 123 is arranged on the part of the liquid guide member 121 close to the heating member 122, and the atomized aerosol is heated and atomized through the air guide structure 123, which conducts the heating member 122 in a directional manner, thereby reducing the contact between the aerosol and the heating member 122, thereby avoiding the oil dirt formed by the carbonization of the aerosol on the high temperature heating member 122, and preventing the heating member 122 from being dry-burned; 2. Dry burning phenomenon occurs, which improves the service life.

The above is only the embodiment of the present application, and does not limit the scope of patent protection of the present application. Any equivalent structure or equivalent process transformation made by using the description of the application and the contents of the drawings, or directly or indirectly used in other related technical fields, is also included in the scope of patent protection of the present application.

Claims

An atomizing core, wherein the atomizing core includes:

a liquid guide, having an atomizing surface and a liquid-absorbing surface, for conducting the substrate to be atomized from the liquid-absorbing surface to the atomizing surface;

A heating element, arranged on the atomizing surface, is used to heat and atomize the substrate to be atomized to generate an aerosol;

Wherein, the liquid-guiding element also has an air-guiding structure; the air-guiding structure includes grooves and/or blind holes arranged on the atomizing surface, and is arranged around the heating element.
The atomizing core according to claim 1, wherein the distance between the air guide structure and the heating element is greater than 0 and no more than 3 millimeters.
The atomizing core according to claim 1, wherein the air guide structure includes a plurality of blind holes, and the plurality of blind holes are distributed along the edge of the heating element in sequence.
The atomizing core according to claim 1, wherein the air guiding structure comprises the groove, and the groove extends along the edge of the heating element.
The atomizing core according to claim 1, wherein the diameter of the blind hole and/or the width of the groove is greater than or equal to 0.05 mm and less than or equal to 3 mm.
The atomizing core according to claim 1, wherein the atomizing surface is disposed opposite to the liquid-absorbing surface, and the ratio between the depth of the blind hole and/or the groove and the distance from the atomizing surface to the liquid-absorbing surface is 1:10˜9:10.
The atomizing core according to claim 1, wherein a longitudinal section of the groove and/or the blind hole perpendicular to the atomizing surface is rectangular, trapezoidal or arc-shaped.
The atomizing core according to claim 1, wherein the groove and/or the blind hole is a constricted structure, and the cross section of the groove and/or the blind hole gradually decreases along the escape direction of the aerosol.
An atomizer, wherein the atomizer comprises the atomizing core according to claim 1.
An electronic atomization device, comprising a power supply device and the atomizer according to claim 9, the power supply device supplies power to the atomizer.