Atomizer and electronic atomization device

Abstract

The present application discloses an atomizer and an electronic atomization device. The atomizer comprises: a housing; a retaining seat arranged in the housing and cooperating with the housing to form a liquid storage cavity, wherein the retaining seat comprises a top wall and a side wall which define an accommodating cavity, the top wall is provided with ventilation holes, the side wall comprises a first side wall and a second side wall arranged opposite to each other, the first side wall is provided with a liquid inlet, and the second side wall is provided with an assembly hole; a base at least partially arranged in the housing and provided with ventilation columns, wherein the ventilation columns penetrate through the ventilation holes and cooperate with the inner surfaces of the ventilation holes to form ventilation channels, one end of each ventilation channel is communicated with the liquid storage cavity, and the other end of the ventilation channel is communicated with the atmosphere; and an atomization core arranged in the accommodating cavity, wherein the atomization core is installed into the accommodating cavity by means of the assembly hole. By means of the arrangement, during ventilation, bubbles are not prone to attaching to a liquid suctioning surface of the atomization core, ensuring smooth liquid flow, and making ventilation more stable; and the atomization core is installed into the accommodating cavity by means of the assembly hole, so that the assembly method is simpler and the efficiency is higher.

Description

Atomizers and electronic atomization devices

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to the Chinese patent application filed with the China Patent Office on November 30, 2023, with application number 202323273995.2, entitled “Atomizer and Electronic Atomization Device,” the entire contents of which are incorporated by reference into this application. Technical Field

[0003] The present application relates to the field of atomization technology, and in particular to an atomizer and an electronic atomization device. Background Art

[0004] An electronic atomization device generally includes an atomizer and a power supply assembly, which is electrically connected to the atomizer for supplying power to the atomizer. The atomizer usually contains an atomizable liquid matrix and an atomizing core. The atomizing core includes a porous matrix and a heating element. The porous matrix has a large number of micropores inside to absorb the liquid matrix, and the heating element heats and atomizes the liquid matrix to produce an aerosol. As the user inhales, the liquid matrix in the liquid storage chamber is continuously consumed, and air is required to enter the liquid storage chamber from the outside to maintain the air pressure balance in the liquid storage chamber to prevent the negative pressure in the liquid storage chamber from being too large, causing the liquid matrix to be unable to be supplied. Therefore, it is necessary to provide a ventilation channel in the atomizer to allow air to enter the liquid storage chamber through the ventilation channel.

[0005] At present, for side-atomizing atomizers, when the user inhales, external air enters the liquid storage chamber through the ventilation channel, bubbles are likely to appear, and the bubbles are likely to adhere to the surface of the porous matrix, affecting the porous matrix's absorption of liquid, easily leading to poor liquid discharge, and then causing the atomizer core to dry burn, and the problem of unstable ventilation is prone to occur.

[0006] Application Contents

[0007] The present application mainly provides an atomizer and an electronic atomization device to solve the problem in the related art that bubbles in the atomizer easily adhere to the surface of the porous substrate during ventilation, resulting in poor liquid discharge and unstable ventilation.

[0008] In order to solve the above technical problems, a technical solution adopted in this application is to provide an atomizer, comprising:

[0009] The invention relates to a housing; a retaining base is disposed within the housing and cooperates with the housing to form a liquid storage chamber for storing a liquid matrix; the retaining base includes a top wall and side walls connected to each other; the top wall and the side walls enclose a receiving chamber, and the top wall is provided with a ventilation hole; the side walls include a first side wall and a second side wall arranged opposite each other, the first side wall is provided with a liquid inlet, the liquid inlet is connected to the liquid storage chamber, and the second side wall is provided with an assembly hole. At least a portion of the base is disposed within the housing and is located at an end of the retaining base away from the liquid storage chamber; the base is provided with a ventilation column, the ventilation column is disposed within the ventilation hole, and the ventilation column cooperates with the inner surface of the ventilation hole to form a ventilation channel, one end of the ventilation channel is connected to the liquid storage chamber, and the other end is connected to the external atmosphere. An atomizer core is disposed within the receiving chamber, the atomizer core includes a liquid absorption surface for receiving the liquid matrix, the liquid absorption surface is connected to the liquid storage chamber through the liquid inlet; wherein the assembly hole is configured to allow the atomizer core to be installed within the receiving chamber from the assembly hole.

[0010] In some embodiments, the ventilation column is located on a side of the atomizer core away from the liquid inlet and is spaced apart from the atomizer core.

[0011] In some embodiments, the end of the sidewall facing away from the liquid storage chamber has an annular groove, and the bottom wall of the annular groove is provided with two spaced-apart arcuate grooves. The base includes a mounting portion and an annular flange, the annular flange being connected to a side of the mounting portion proximal to the retaining base; the annular flange is provided with two spaced-apart support portions facing away from the mounting portion; the annular flange is embedded in the annular groove, and the two support portions are embedded in the two arcuate grooves in a one-to-one correspondence.

[0012] In some embodiments, the sidewall further includes a third sidewall and a fourth sidewall connected between the first sidewall and the second sidewall, the first sidewall and the second sidewall are disposed opposite each other along the thickness direction of the atomizer, and the third sidewall and the fourth sidewall are disposed opposite each other along the width direction of the atomizer. The two arcuate grooves are disposed in a one-to-one correspondence on the third sidewall and the fourth sidewall.

[0013] In some embodiments, one end of the ventilation column is connected to the base, the ventilation column passes through the receiving cavity and the other end thereof extends into the liquid storage cavity, so that the ventilation channel is in communication with the receiving cavity.

[0014] In some embodiments, a ventilation groove is provided on the side of the ventilation column, one end of the ventilation groove extends to the end surface of the ventilation column away from the base, and the other end is communicated with the receiving cavity.

[0015] In some embodiments, the atomizer further includes a fitting, which is installed in the assembly hole; and / or the atomizing core further includes an atomizing surface, which is arranged toward the assembly hole, and the atomizing surface cooperates with the receiving cavity to form an atomizing cavity; an air intake cavity is defined between the base and the retaining base, and the air intake cavity is connected to the atomizing cavity; an air intake column and two electrode mounting holes are provided on the base, and the two electrode mounting holes are respectively provided on both sides of the air intake column; one end of the air intake column is connected to the air intake cavity, and the other end is connected to the external atmosphere.

[0016] In some embodiments, the atomizer further includes two conductive electrodes, which are correspondingly inserted into the electrode mounting holes; the conductive electrodes are configured to be inserted into the atomization chamber from the bottom of the retaining base and abut against the atomization surface; the ventilation column is configured to be inserted into the ventilation hole from the bottom of the retaining base.

[0017] In some embodiments, the shell has an air outlet pipe inside, and the top wall of the base is provided with an air outlet hole, one end of the air outlet hole is connected to the atomization chamber, and the other end is connected to the air outlet pipe; the air inlet column, the atomization chamber, and the air outlet pipe are coaxially arranged.

[0018] To solve the above technical problems, another technical solution adopted in this application is: to provide an electronic atomization device, comprising: an atomizer, which is any of the atomizers mentioned above; and a power supply component, which is electrically connected to the atomizer and is used to provide energy to the atomizer.

[0019] The beneficial effects of the present application are: different from the prior art, the present application discloses an atomizer and an electronic atomization device. The nebulizer comprises: a shell; a holding base is arranged in the shell and cooperates with the shell to form a liquid storage chamber for storing a liquid matrix; the holding base comprises a top wall and side walls connected to each other; the top wall and the side walls surround a receiving chamber, and the top wall is provided with a ventilation hole; the side wall comprises a first side wall and a second side wall arranged opposite to each other, the first side wall is provided with a liquid inlet, the liquid inlet is connected to the liquid storage chamber, and the second side wall is provided with an assembly hole; the base is at least partially arranged in the shell and is located at an end of the holding base away from the liquid storage chamber; the base is provided with a ventilation column, the ventilation column is arranged in the ventilation hole; the ventilation column cooperates with the inner surface of the ventilation hole to form a ventilation channel, one end of the ventilation channel is connected to the liquid storage chamber, and the other end is connected to the external atmosphere; an atomizer core is arranged in the receiving chamber, the atomizer core comprises a liquid absorption surface for receiving the liquid matrix, the liquid absorption surface is connected to the liquid storage chamber through the liquid inlet; wherein the assembly hole is configured to enable the atomizer core to be installed in the receiving chamber from the assembly hole. Through the above arrangement, a ventilation column is provided on the base, and a ventilation hole is provided on the top wall of the holding base. The ventilation column and the inner surface of the ventilation hole cooperate to form a ventilation channel, which can ventilate the liquid storage cavity, and the outlet of the ventilation channel is located on the top wall of the holding base. During the ventilation process, bubbles are not easy to adhere to the liquid absorption surface of the atomizer core, which ensures smooth liquid discharge and makes the ventilation more stable; and the atomizer core is installed in the receiving cavity from the assembly hole of the second side wall of the holding base, which makes the assembly method simpler and more efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] 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. Those skilled in the art can also derive other drawings based on these drawings without inventive work, among which:

[0021] FIG1 is a schematic structural diagram of an embodiment of an electronic atomization device provided by the present application;

[0022] FIG2 is a schematic structural diagram of an atomizer of the electronic atomization device provided in FIG1 ;

[0023] FIG3 is a schematic cross-sectional view of the atomizer provided in FIG2 ;

[0024] FIG4 is another schematic cross-sectional view of the atomizer provided in FIG2 ;

[0025] FIG5 is a schematic top view of the holding base of the atomizer provided in FIG3 ;

[0026] FIG6 is a bottom view of the structure of the holding base provided in FIG5 ;

[0027] FIG7 is a schematic cross-sectional view of the holding base provided in FIG5 ;

[0028] FIG8 is another cross-sectional schematic diagram of the holding base provided in FIG5 ;

[0029] FIG9 is a schematic structural diagram of the base of the atomizer provided in FIG3 ;

[0030] FIG10 is a schematic cross-sectional view of the base provided in FIG9 ;

[0031] FIG11 is a schematic structural diagram of the atomizer core of the atomizer provided in FIG3 . DETAILED DESCRIPTION

[0032] 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 in 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.

[0033] The terms "first", "second" and "third" in the embodiments of the present application are only used for descriptive purposes and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first", "second" and "third" may explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. 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 may optionally also include steps or units that are not listed, or may optionally also include other steps or units inherent to these processes, methods, products or devices.

[0034] References to "embodiments" herein mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0035] Please refer to FIG1 , which is a schematic structural diagram of an embodiment of an electronic atomization device provided in the present application.

[0036] 1 , the present application provides an electronic atomization device 300 , which can be used to atomize a liquid matrix. The electronic atomization device 300 includes an atomizer 100 and a power supply assembly 200 that are electrically connected to each other.

[0037] The atomizer 100 is used to store a liquid matrix and atomize the liquid matrix to form an aerosol for inhalation by a user. The atomizer 100 can be used in various fields, such as medical treatment, cosmetics, and recreational smoking. In one embodiment, the atomizer 100 can be used in an electronic aerosol atomization device to atomize the liquid matrix and generate an aerosol for inhalation by a user. The following embodiments use this recreational smoking method as an example.

[0038] The specific structure and function of the atomizer 100 can refer to the specific structure and function of the atomizer 100 involved in the following embodiments, and the same or similar technical effects can be achieved, so they are not repeated here.

[0039] The power supply assembly 200 is provided with a battery cell (not shown), an electrical connection terminal (not shown), an air pressure sensor (not shown) and a controller (not shown), wherein the electrical connection terminal can be electrically connected to the conductive electrode 50 of the atomizer 100. When the user uses the electronic atomization device 300 to inhale, the air pressure sensor senses the internal air pressure change and sends the sensing signal to the controller. The controller controls the battery cell to provide electrical energy to the atomizer 100 through the electrical connection terminal. The atomization core 30 in the atomizer 100 can receive the electrical energy and start heating and atomizing the liquid matrix to produce an aerosol for the user. The power supply assembly 200 may also include other components such as a battery holder (not shown).

[0040] 2 to 4 , FIG. 2 is a structural schematic diagram of the atomizer of the electronic atomization device provided in FIG. 1 , FIG. 3 is a cross-sectional schematic diagram of the atomizer provided in FIG. 2 , and FIG. 4 is another cross-sectional schematic diagram of the atomizer provided in FIG. 2 .

[0041] Referring to Figures 2 to 4, the atomizer 100 includes a housing 10, a retaining base 20, an atomizing core 30, and a base 40. The retaining base 20 is disposed in the housing 10 and cooperates with the housing 10 to form a liquid storage chamber 101, which is used to store a liquid matrix. The retaining base 20 includes a top wall 22 and a side wall 23 that are interconnected, wherein the side wall 23 includes a first side wall 231 and a second side wall 232 that are oppositely disposed. The first side wall 231 is provided with a liquid inlet 201, which is in fluid communication with the liquid storage chamber 101, and the second side wall 232 is provided with an assembly hole 202. The base 40 is at least partially disposed in the housing 10 and is located at one end of the retaining base 20 away from the liquid storage chamber 101. The top wall 22 of the holding base 20 is provided with a ventilation hole 221 (see Figure 5), and the base 40 is provided with a ventilation column 44 (see Figure 9), which is passed through the ventilation hole 221. The ventilation column 44 cooperates with the inner surface of the ventilation hole 221 to form a ventilation channel, one end of the ventilation channel is connected to the liquid storage chamber 101, and the other end of the ventilation channel is connected to the external atmosphere. The top wall 22 and the side wall 23 of the holding base 20 are surrounded to form a receiving chamber 21, and the atomizer core 30 is arranged in the receiving chamber 21. Specifically, the atomizer core 30 includes a liquid absorption surface 311, which is used to receive the liquid matrix, and the liquid absorption surface 311 is connected to the liquid storage chamber 101 through the liquid inlet 201. In a specific embodiment, the liquid absorption surface 311 is arranged towards the liquid inlet 201. Among them, the assembly hole 202 is configured to enable the atomizer core 30 to be installed in the receiving chamber 21 from the assembly hole 202.

[0042] It can be understood that by providing a ventilation hole 221 on the top wall 22 of the holding base 20, and providing a ventilation column 44 on the base 40, the ventilation column 44 is inserted into the ventilation hole 221, and the ventilation column 44 cooperates with the inner surface of the ventilation hole 221 to form a ventilation channel, and one end of the ventilation channel is connected to the liquid storage chamber 101, and the other end is directly or indirectly connected to the external atmosphere. The ventilation channel can ventilate the liquid storage chamber 101 and balance the air pressure in the liquid storage chamber 101, thereby avoiding the problem of poor liquid discharge caused by imbalance of air pressure in the liquid storage chamber 101 and dry burning of the atomizer core 30. , and the outlet of the ventilation channel is located at the top wall 22 of the holding base 20. During the ventilation process, the bubbles are guided away from the liquid absorption surface 311 of the atomizer core 30 and are not easily attached to the liquid absorption surface 311 of the atomizer core 30, thereby ensuring smooth liquid discharge, further avoiding dry burning of the atomizer core 30, and making the ventilation process more stable. At the same time, an assembly hole 202 is provided on the second side wall 232 of the holding base 20. The atomizer core 30 is installed in the receiving cavity 21 through the assembly hole 202 of the second side wall 232 of the holding base 20, which can make the assembly method simpler and more efficient.

[0043] Referring to Figures 5 to 11, Figure 5 is a schematic diagram of the top structure of the holding base of the atomizer provided in Figure 3, Figure 6 is a schematic diagram of the bottom structure of the holding base provided in Figure 5, Figure 7 is a schematic diagram of a cross-section of the holding base provided in Figure 5, Figure 8 is another schematic diagram of a cross-section of the holding base provided in Figure 5, Figure 9 is a schematic diagram of the structure of the base of the atomizer provided in Figure 3, Figure 10 is a schematic diagram of the cross-section of the base provided in Figure 9, and Figure 11 is a schematic diagram of the structure of the atomizer core provided in Figure 3.

[0044] Specifically, in some embodiments, the number of ventilation holes 221 is two, and the two ventilation holes 221 are spaced apart from each other on the top wall 22 of the retaining base 20. As shown in Figures 5 to 8, along the width direction of the atomizer 100, the two ventilation holes 221 are respectively located on both sides of the assembly hole 202. Referring to Figures 2 to 4, Figure 9 and Figure 10, the number of ventilation columns 44 on the base 40 is also two, and the two ventilation columns 44 are respectively arranged in the two ventilation holes 221 to form two ventilation channels. It can be understood that by providing two ventilation holes 221 and two ventilation columns 44 to form two ventilation channels, the ventilation efficiency can be improved, the air pressure in the liquid storage chamber 101 can be more efficiently balanced, and the ventilation stability can be ensured.

[0045] In other embodiments, the ventilation holes 221 and the ventilation columns 44 can be set to other numbers accordingly. For example, the number of ventilation holes 221 and the ventilation columns 44 are set to one, three, four, five, or any other number to form any other number of ventilation channels to ventilate the liquid storage chamber 101.

[0046] In some embodiments, the ventilation column 44 is located on a side of the atomizer core 30 away from the liquid inlet 201 and is spaced apart from the atomizer core 30. In one specific embodiment, as shown in FIG4 , there are two ventilation columns 44. Along the thickness direction of the atomizer 100, the two ventilation columns 44 are located on a side of the atomizer core 30 away from the liquid inlet 201 and are spaced apart from the atomizer core 30. By arranging the ventilation holes 221 and the ventilation columns 44 on the side of the atomizer core 30 away from the liquid inlet 201, the ventilation channel is spaced apart from the liquid inlet 201 and the liquid absorption surface 311 of the atomizer core 30. There is sufficient spacing between the ventilation columns 44 and the liquid inlet 201. This makes it less likely that bubbles generated during ventilation will come into contact with the liquid absorption surface 311 of the atomizer core 30. As a result, the bubbles will not adhere to the liquid absorption surface 311 of the atomizer core 30 and affect the liquid absorption effect of the liquid absorption surface 311, thereby effectively preventing the atomizer core 30 from drying out.

[0047] 5 to 10 , in some embodiments, the sidewall 23 of the retaining base 20 has an annular groove 25 at the end away from the liquid storage chamber 101, and the bottom wall of the annular groove 25 is provided with two mutually spaced arcuate grooves 251. The base 40 includes a mounting portion 41 and an annular flange 42. The annular flange 42 is connected to the side of the mounting portion 41 close to the retaining base 20. The annular flange 42 is provided with two mutually spaced support portions 43 facing away from the mounting portion 41. The annular flange 42 is embedded in the annular groove 25, and the two support portions 43 are embedded in the two arcuate grooves 251 in a one-to-one correspondence, thereby achieving the connection between the retaining base 20 and the base 40. The material of the base 40 may include a hard material such as plastic, and the retaining base 20 is a flexible member. Specifically, the material of the retaining base 20 is a flexible material, for example, the retaining base 20 is made of a flexible soft rubber material such as silicone, rubber, or thermoplastic elastomer (TPE). The annular flange 42 of the base 40 is embedded in the annular groove 25 of the retaining base 20, and the side wall 23 of the retaining base 20 can be used to seal the base 40 and the inner surface of the housing 10, which helps prevent leakage of the liquid matrix in the liquid storage chamber 101. Furthermore, two support portions 43 are connected to the annular flange 42 of the base 40. The support portions 43 are arc-shaped, and the bottom wall of the annular groove 25 of the retaining base 20 is provided with two arc-shaped grooves 251. The two support portions 43 are embedded in the two arc-shaped grooves 251 in a one-to-one correspondence, which can further facilitate the support portions 43 to support the side wall 23 of the retaining base 20, further improving the sealing reliability between the base 40 and the housing 10.

[0048] Specifically, in some embodiments, the sidewall 23 of the holding base 20 further includes a third sidewall 233 and a fourth sidewall 234, and the third sidewall 233 and the fourth sidewall 234 are connected between the first sidewall 231 and the second sidewall 232. In one specific embodiment, the first sidewall 231 and the second sidewall 232 are arranged opposite each other along the thickness direction of the atomizer 100, the first sidewall 231 and the second sidewall 232 are rectangular, the third sidewall 233 and the fourth sidewall 234 are arranged opposite each other along the width direction of the atomizer 100, the third sidewall 233 and the fourth sidewall 234 are arc-shaped, and two arc-shaped grooves 251 are arranged on the third sidewall 233 and the fourth sidewall 234 in a one-to-one correspondence. In other embodiments, the first side wall 231 and the second side wall 232 may also be arranged relative to each other along other directions different from the thickness direction of the atomizer 100, the third side wall 233 and the fourth side wall 234 may also be arranged relative to each other along other directions different from the width direction of the atomizer 100, and the first side wall 231, the second side wall 232, the third side wall 233 and the fourth side wall 234 may also be set to any other shape.

[0049] In some embodiments, one end of the ventilation column 44 is connected to the base 40, and the ventilation column 44 passes through the receiving chamber 21 and its other end extends into the liquid storage chamber 101, so that the ventilation channel is connected to the receiving chamber 21. Specifically, the housing 10 defines the central axis L1 of the atomizer 100. Referring to Figures 3 and 4, in some embodiments, the liquid absorption surface 311 of the atomizer core 30 is arranged parallel to the central axis L1 of the atomizer 100. Referring to Figures 9 and 10, in a specific embodiment, the ventilation column 44 is located in the annular flange 42 of the base 40 and is arranged parallel to the central axis L1 of the atomizer 100. The end of the ventilation column 44 away from the liquid storage chamber 101 is connected to the mounting portion 41 of the base 40, and the side of the ventilation column 44 is connected to the inner side of the annular flange 42 and is connected to the support portion 43. Specifically, the ventilation column 44 is configured to be inserted into the ventilation hole 221 from the bottom of the retaining base 20, and the end of the ventilation column 44 away from the base 40 extends into the liquid storage cavity 101, that is, the end of the ventilation column 44 away from the base 40 protrudes from the top wall 22 of the retaining base 20 and extends into the liquid storage cavity 101, and the port of the ventilation channel close to one end of the liquid storage cavity 101 is located in the liquid storage cavity 101.

[0050] It can be understood that the ventilation column 44 is arranged in a direction parallel to the central axis L1 of the atomizer 100, so that the ventilation hole 221 is correspondingly arranged as a straight-through hole, which is more conducive to improving ventilation stability. Moreover, the ventilation column 44 is located inside the annular flange 42, so that when the base 20 is kept fixedly connected to the base 40, the ventilation column 44 is partially located in the receiving chamber 21, and the ventilation channel formed by the ventilation column 44 and the ventilation hole 221 is directly connected to the receiving chamber 21 at one end away from the liquid storage chamber 101, so that after the external gas enters the receiving chamber 21, part of the gas can directly enter the ventilation channel through the receiving chamber 21, thereby achieving ventilation for the liquid storage chamber 101 and improving ventilation efficiency. In other embodiments, the end of the ventilation channel away from the liquid storage chamber 101 can also be directly connected to the external atmosphere. In other embodiments, the ventilation column 44 may also be set non-parallel to the central axis L1 of the nebulizer 100. For example, the ventilation column 44 may be set obliquely to the central axis L1 of the nebulizer 100, and the ventilation hole 221 may also be an oblique through hole, as long as the ventilation column 44 and the ventilation hole 221 can cooperate to form a ventilation channel and ventilate the liquid storage chamber 101.

[0051] In one specific embodiment, as shown in FIG9 , a ventilation groove 441 is provided on the side of the ventilation column 44. One end of the ventilation groove 441 extends to the end surface of the ventilation column 44 away from the base 40, and the other end is connected to the receiving cavity 21 of the retaining base 20. The ventilation column 44 is embedded in the ventilation hole 221. The ventilation groove 441 of the ventilation column 44 cooperates with the inner surface of the ventilation hole 221 to form a ventilation channel, thereby ventilating the liquid storage chamber 101. Optionally, the ventilation groove 441 has an appropriate width or depth to create a capillary effect. The ventilation column 44 is made of a hard material such as plastic to maintain a substantially stable air intake cross-sectional area of ​​the ventilation channel. Due to capillary action, the ventilation groove 441 can, to a certain extent, prevent the liquid matrix within the liquid storage chamber 101 from leaking through the ventilation groove 441. At the same time, the ventilation groove 441 can retain a small amount of liquid matrix from the liquid storage chamber 101. Only when the negative pressure within the liquid storage chamber 101 reaches a certain level can the air within the receiving chamber 21, driven by the internal and external pressure difference, enter the liquid storage chamber 101 through the ventilation channel, thereby reducing the negative pressure within the liquid storage chamber 101. Moreover, the port of the ventilation groove 441 near the end of the liquid storage chamber 101 extends to the end surface of the ventilation column 44 away from the base 40. The port of the ventilation groove 441 near the end of the liquid storage chamber 101 is higher than the liquid suction surface 311. The ventilation bubbles generated by the air replenished from the outside entering the liquid storage chamber 101 will escape in a direction away from the liquid suction surface 311. This can prevent the bubbles escaping from the port of the ventilation groove 441 near the end of the liquid storage chamber 101 from accumulating near the liquid suction surface 311 and hindering liquid suction.

[0052] Specifically, as shown in Figure 9, each of the two ventilation columns 44 is provided with a ventilation groove 441, forming two ventilation channels. In other embodiments, each ventilation column 44 may be provided with any number of ventilation grooves 441, such as two, three, etc., to form multiple ventilation channels and improve ventilation efficiency. The ventilation grooves 441 may be in the form of straight grooves or curved grooves, as long as they can ventilate the liquid storage chamber 101.

[0053] In other embodiments, ventilation grooves 441 may be provided on the inner surface of the ventilation hole 221, that is, the ventilation grooves 441 are formed on a flexible material. One end of the ventilation groove 441 extends to communicate with the liquid storage chamber 101, and the other end of the ventilation groove 441 extends to communicate with the receiving chamber 21. The outer surface of the ventilation column 44 cooperates with the ventilation grooves 441 on the inner surface of the ventilation hole 221 to form a ventilation channel, thereby achieving ventilation of the liquid storage chamber 101. Similarly, one or more ventilation grooves 441 can be provided on the inner surface of the ventilation hole 221, and the shape of the ventilation grooves 441 can also be set arbitrarily.

[0054] In other embodiments, the outer side surface of the ventilation column 44 and the inner surface of the ventilation hole 221 may be at least partially spaced apart, and a ventilation channel may be formed by the gap between the outer side surface of the ventilation column 44 and the inner surface of the ventilation hole 221, wherein one end of the gap is connected to the liquid storage chamber 101, and the other end is connected to the external atmosphere, thereby ventilating the liquid storage chamber 101.

[0055] In other embodiments, the ventilation channel may also include an air-conducting hole extending through the side wall of the receiving chamber 21. One end of the air-conducting hole is connected to the liquid storage chamber 101, and the other end of the air-conducting hole is connected to the outside atmosphere, allowing air to enter the liquid storage chamber 101. Optionally, the air-conducting hole may have a capillary structure.

[0056] In other embodiments, the nebulizer 100 may include multiple ventilation channels, and the multiple ventilation channels may include any one or more of the above-mentioned ventilation channels. For example, the nebulizer 100 includes two ventilation channels, one of which is formed by the ventilation groove 441 on the outer side of the ventilation column 44 and the inner surface of the ventilation hole 221, and the other ventilation channel is formed by the ventilation groove 441 on the inner surface of the ventilation hole 221 and the outer side of the ventilation column 44. The design can be as needed. It can be understood that providing multiple ventilation channels can improve the ventilation efficiency of the nebulizer 100 and more effectively avoid the problem of poor liquid discharge caused by imbalance of air pressure in the liquid storage chamber 101.

[0057] Furthermore, referring to Figures 3 and 4 , the atomizer 100 further includes a fitting 26. After the atomizer core 30 is installed in the receiving chamber 21 through the assembly hole 202, the fitting 26 is installed in the assembly hole 202 to increase the structural strength of the retaining base 20 and prevent significant deformation when the retaining base 20 is installed in the housing 10. Furthermore, the fitting 26 can also block the assembly hole 202 to prevent the liquid matrix in the liquid storage chamber 101 from leaking into the receiving chamber 21. The fitting 26 and the assembly hole 202 can be assembled and connected using an interference fit to better prevent the liquid matrix in the liquid storage chamber 101 from leaking from the assembly hole 202 into the receiving chamber 21.

[0058] 3 , 4 and 11 , the atomizing core 30 further includes an atomizing surface 312 , which is disposed opposite the liquid absorbing surface 311 , wherein the atomizing surface 312 is disposed toward the assembly hole 202 of the second side wall 232 . The atomizing surface 312 of the atomizing core 30 cooperates with the accommodating cavity 21 to form an atomizing cavity 211 . The aerosol generated by heating the liquid matrix by the atomizing surface 312 of the atomizing core 30 is released into the atomizing cavity 211 and flows out of the atomizer 100 through the atomizing cavity 211 for inhalation by the user.

[0059] Specifically, the atomizer core 30 includes a porous matrix 31 with air permeability and a heating element 32 coupled to the porous matrix 31. The porous matrix 31 can be made of a hard capillary structure such as porous ceramic, porous glass ceramic or porous glass. In the embodiment, the porous matrix 31 can be roughly in the form of, but not limited to, a block structure. Depending on the usage scenario, the porous matrix 31 is provided with a liquid suction surface 311 and an atomizing surface 312 opposite to each other along the thickness direction of the atomizer 100, i.e., perpendicular to the central axis L1 of the atomizer 100. The porous matrix 31 is installed in the receiving chamber 21 in an orientation such that the liquid suction surface 311 is parallel to the central axis L1. The liquid suction surface 311 is used to absorb the liquid matrix, and the heating element 32 is coupled to the atomizing surface 312 for heating the atomized liquid matrix. In some embodiments, the liquid suction surface 311 and the atomizing surface 312 of the atomizer core 30 are respectively arranged parallel to the central axis L1 of the atomizer 100. In other embodiments, the liquid suction surface 311 or the atomization surface 312 may also be arranged to be inclined with respect to the central axis L1 of the atomizer 100 .

[0060] In some embodiments, the heating element 32 is made of stainless steel, nickel-chromium alloy, iron-chromium-aluminum alloy or titanium metal, and is preferably formed on the atomizing surface 312 by mixing conductive raw material powder with a printing aid into a slurry, printing it according to a suitable pattern, and then sintering it, so that all or most of its surface is tightly combined with the atomizing surface 312, with the effects of high atomization efficiency, low heat loss, and preventing dry burning or greatly reducing dry burning. Optionally, the heating element 32 adopts a variety of structural forms. The heating element 32 can be a sheet-like heating element with a specific pattern formed on the atomizing surface 312, or a heating mesh, a disc-shaped heating element formed by a heating wire spiral, a heating film, or other forms; for example, the specific pattern can be a serpentine shape.

[0061] 3, 4, 5 to 10, the housing 10 has an air outlet pipe 102 inside, and the top wall 22 of the holding base 20 is provided with an air outlet hole 222, one end of the air outlet hole 222 is connected to the atomizing chamber 211, and the other end is connected to the air outlet pipe 102. Specifically, one end of the air outlet pipe 102 is inserted into the air outlet hole 222 so that the air outlet pipe 102 is connected to the atomizing chamber 211 through the air outlet hole 222. An air inlet chamber 45 is defined between the base 40 and the holding base 20. In a specific embodiment, the mounting portion 41 of the base 40, the annular flange 42 and the bottom of the holding base 20 are surrounded to form an air inlet chamber 45, and the air inlet chamber 45 is connected to the atomizing chamber 211. An air intake column 46 is also provided on the base 40. In one embodiment, an air intake column 46 is provided on the mounting portion 41 of the base 40 near the surface of the holding base 20. One end of the air intake column 46 is connected to the air intake chamber 45, and the other end is connected to the external atmosphere. External gas enters the air intake chamber 45 through the air intake column 46, and enters the atomizing chamber 211 from the air intake chamber 45, carrying the aerosol in the atomizing chamber 211 through the air outlet 222 into the air outlet pipe 102, and finally flows to the port of the air outlet pipe 102 to be inhaled by the user. In some embodiments, the ventilation groove 441 on the ventilation column 44 away from the end of the liquid storage chamber 101 can also extend into the air intake chamber 45, so that the gas in the air intake chamber 45 can enter the liquid storage chamber 101 through the ventilation channel to ventilate the liquid storage chamber 101.

[0062] In one specific embodiment, the air inlet column 46 of the base 40, the atomizing chamber 211 holding the base 20, and the air outlet pipe 102 are coaxially arranged. The projections of the atomizing core 30 and the air inlet column 46 in a plane perpendicular to the central axis L1 of the atomizer 100 do not overlap with each other, so that the air flow channel from the air inlet column 46 to the air outlet 222 is a straight channel, which can prevent the air flow entering through the air inlet column 46 from being blocked by the atomizing core 30 and reduce the air flow dead angle area.

[0063] Referring to Figures 3, 4, 9, and 10, the base 40 is further provided with two electrode mounting holes 47. The two electrode mounting holes 47 are provided on the surface of the mounting portion 41 close to the holding base 20 and pass through the mounting portion 41. The two electrode mounting holes 47 are respectively provided on both sides of the air inlet column 46. In one specific embodiment, along the width direction of the atomizer 100, the two electrode mounting holes 47 are respectively provided on both sides of the air inlet column 46. The atomizer 100 also includes two conductive electrodes 50, which are respectively provided in the two electrode mounting holes 47 in a one-to-one correspondence. Specifically, the conductive electrodes 50 are configured to be inserted into the atomizing chamber 211 from the bottom of the holding base 20 and abut against the atomizing surface 312 of the atomizing core 30.

[0064] In one specific embodiment, the conductive electrode 50 is arranged parallel to the central axis L1 of the atomizer 100, and the side of the conductive electrode 50 abuts the heating element 32 on the atomizing surface 312 of the atomizer core 30. The end of the conductive electrode 50 away from the liquid storage chamber 101 is electrically connected to the battery core of the power supply assembly 200. The atomizer core 30 is electrically connected to the electrical connection terminal of the power supply assembly 200 through the conductive electrode 50, so that the heating element 32 of the atomizer core 30 can generate heat under power-on conditions to heat the atomized liquid matrix to generate an aerosol. In other embodiments, the conductive electrode 50 can also be arranged obliquely to the central axis L1 of the atomizer 100, as long as the conductive electrode 50 can achieve a stable electrical connection between the heating element 32 of the atomizer core 30 and the electrical connection terminal of the power supply assembly 200.

[0065] The above description is merely an embodiment of the present application and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. An atomizer, characterized in that: include: case; A holding base, disposed in the shell and cooperating with the shell to form a liquid storage cavity for storing a liquid matrix; The holding base comprises a top wall and a side wall connected to each other; the top wall and the side wall are arranged to form a receiving cavity, and the top wall is provided with a ventilation hole; the side wall comprises a first side wall and a second side wall arranged opposite to each other, the first side wall is provided with a liquid inlet, the liquid inlet is connected to the liquid storage cavity, and the second side wall is provided with an assembly hole; A base, at least partially disposed in the shell, and located at an end of the retaining base away from the liquid storage cavity; the base is provided with a ventilation column, the ventilation column is penetrated in the ventilation hole, and the ventilation column cooperates with the inner surface of the ventilation hole to form a ventilation channel, one end of the ventilation channel is connected to the liquid storage cavity, and the other end is connected to the external atmosphere; An atomizer core is disposed in the receiving cavity, the atomizer core comprises a liquid absorbing surface for receiving the liquid matrix, and the liquid absorbing surface is connected with the liquid storage cavity through the liquid inlet; Wherein, the assembly hole is configured to enable the atomizer core to be installed in the receiving cavity through the assembly hole.

2. The atomizer according to claim 1, characterized in that The ventilation column is located on a side of the atomizer core away from the liquid inlet and is spaced apart from the atomizer core.

3. The atomizer according to claim 1, characterized in that The end of the side wall away from the liquid storage cavity is provided with an annular groove, and the bottom wall of the annular groove is provided with two arc grooves spaced apart from each other; The base includes a mounting portion and an annular flange, wherein the annular flange is connected to a side of the mounting portion close to the retaining base; the annular flange is provided with two support portions spaced apart from each other in a direction away from the mounting portion; the annular flange is embedded in the annular groove, and the two support portions are embedded in the two arc grooves one by one.

4. The atomizer according to claim 3, characterized in that The side wall further includes a third side wall and a fourth side wall connected between the first side wall and the second side wall, the first side wall and the second side wall are arranged opposite to each other along the thickness direction of the atomizer, and the third side wall and the fourth side wall are arranged opposite to each other along the width direction of the atomizer; The two arc-shaped grooves are arranged on the third side wall and the fourth side wall in a one-to-one correspondence.

5. The atomizer according to claim 1, characterized in that One end of the ventilation column is connected to the base, and the ventilation column passes through the receiving cavity and the other end thereof extends into the liquid storage cavity, so that the ventilation channel is connected with the receiving cavity.

6. The atomizer according to claim 5, characterized in that A ventilation groove is arranged on the side of the ventilation column, one end of the ventilation groove extends to the end surface of the ventilation column away from one end of the base, and the other end is communicated with the receiving cavity.

7. The atomizer according to any one of claims 1 to 6, characterized in that: The atomizer further comprises a matching piece, wherein the matching piece is installed in the assembly hole; and / or The atomizing core also has an atomizing surface, which is arranged toward the assembly hole, and the atomizing surface cooperates with the accommodating cavity to form an atomizing cavity; an air intake cavity is defined between the base and the retaining base, and the air intake cavity is communicated with the atomizing cavity; an air intake column and two electrode mounting holes are arranged on the base, and the two electrode mounting holes are respectively arranged on both sides of the air intake column; one end of the air intake column is communicated with the air intake cavity, and the other end is connected to the external atmosphere.

8. The atomizer according to claim 7, characterized in that The atomizer further comprises two conductive electrodes, and the conductive electrodes are correspondingly arranged in the electrode mounting holes; The conductive electrode is configured to be inserted into the atomization chamber from the bottom of the holding base and abut against the atomization surface; the ventilation column is configured to be inserted into the ventilation hole from the bottom of the holding base.

9. The atomizer according to claim 7, characterized in that An air outlet pipe is provided inside the shell, and an air outlet hole is provided on the top wall of the holding base, one end of the air outlet hole is connected to the atomization chamber, and the other end is connected to the air outlet pipe; The air inlet column, the atomization chamber, and the air outlet pipe are coaxially arranged.

10. An electronic atomization device, characterized in that: include: An atomizer, which is an atomizer as claimed in any one of claims 1 to 9; A power supply assembly is electrically connected to the atomizer and is used to provide energy to the atomizer.

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