Electronic atomization device

Abstract

The utility model discloses an electronic atomization device. The electronic atomization device comprises a liquid storage cavity, an atomization assembly, a flexible sealing support and a ventilation channel. The liquid storage cavity is used for storing a liquid matrix; the atomizing assembly is used for receiving the liquid matrix in the liquid storage cavity and atomizing the liquid matrix to generate aerosol. The flexible sealing support defines at least part of the boundary of the liquid storage cavity and at least partially accommodates and holds the atomization assembly. An atomization cavity is surrounded or defined in the sealing support, and the atomization assembly is contained and kept in the atomization cavity. The ventilation channel provides a channel path for air to penetrate through the sealing support in the longitudinal direction of the electronic atomization device to enter the liquid storage cavity. The ventilation channel comprises a first channel part and a second channel part which are arranged in the longitudinal direction of the electronic atomization device, and the first channel part and the second channel part are oppositely arranged in a staggered mode in the longitudinal direction of the electronic atomization device. By arranging the non-linear ventilation channel, the effect of reducing liquid leakage of the electronic atomization device can be achieved structurally.

Description

Technical Field

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

[0002] The electronic atomization device can generate aerosol for users to use by heating and atomizing the stored liquid matrix through a porous ceramic body equipped with a heating element under the drive of a power supply mechanism. The electronic atomization device is also provided with a ventilation channel for maintaining the balance of internal and external air pressures. The ventilation channel connects the liquid storage cavity storing the liquid matrix and the outside air. Currently, electronic atomization devices on the market generally have leakage problems to varying degrees, resulting in a poor user experience. Among them, the ventilation channel is a factor that causes leakage in electronic atomization devices. Utility Model Content

[0003] The electronic atomization device provided in the present application is used to alleviate the leakage problem existing in the ventilation channel in the related art.

[0004] In order to solve the above technical problems, the technical solution provided in the present application is: to provide an electronic atomization device, comprising: a liquid storage chamber for storing a liquid matrix; an atomization assembly for receiving the liquid matrix in the liquid storage chamber and atomizing it to generate an aerosol; a flexible sealing bracket, defining at least part of the boundary of the liquid storage chamber, and at least partially accommodating and retaining the atomization assembly; an atomization chamber is surrounded or defined within the sealing bracket, and the atomization assembly is accommodated and retained in the atomization chamber; a ventilation channel, providing a channel path for air to pass through the sealing bracket along the longitudinal direction of the electronic atomization device into the liquid storage chamber; the ventilation channel comprises a first channel portion and a second channel portion arranged along the longitudinal direction of the electronic atomization device, and the first channel portion and the second channel portion are relatively staggered in the longitudinal direction of the electronic atomization device.

[0005] In one embodiment, the ventilation channel bypasses the atomization chamber along the longitudinal direction of the electronic atomization device; and / or the ventilation channel and the atomization chamber are isolated from each other.

[0006] In one embodiment, the atomization assembly includes: a porous body, arranged parallel to the longitudinal direction of the electronic atomization device, and having a first side surface and a second side surface opposite to each other; the first side surface is fluidly connected to the liquid storage chamber to receive the liquid matrix, and the second side surface is located at or exposed to the atomization chamber; a heating element is combined with the second side surface and is used to heat at least a portion of the liquid matrix in the porous body to generate an aerosol.

[0007] In one embodiment, the electronic atomization device also includes: a rigid base, which is at least partially located in the sealing bracket and is provided with an air guide portion extending from the sealing bracket to the liquid storage chamber; the first channel portion is close to and connected to the liquid storage chamber, and the first channel portion is defined or formed between the outer surface of the air guide portion and the sealing bracket.

[0008] In one embodiment, the air guide portion is configured in a longitudinal column shape, a needle shape, or a rod shape.

[0009] In one of the embodiments, a hole for accommodating the air guide portion is arranged in the sealing bracket; the first channel portion includes a first groove arranged on the outer surface of the air guide portion and / or the inner surface of the hole.

[0010] In one of the embodiments, a connecting channel portion perpendicular to the longitudinal direction of the electronic atomization device is arranged in the sealing bracket to connect the first channel portion and the second channel portion.

[0011] In one of the embodiments, the connecting channel portion is at least partially curved in an arc shape.

[0012] In one embodiment, the sealing bracket includes a lower end facing away from the liquid storage chamber; the base at least partially extends from the lower end of the sealing bracket into the sealing bracket; and the second channel portion is arranged to extend from the lower end to the connecting channel portion.

[0013] In one embodiment, the diameter or width of the ventilation channel is between 0.2 and 2.0 mm.

[0014] The electronic atomization device provided in the above embodiment has a non-linear ventilation channel for the external atmosphere to pass through the sealing bracket into the liquid storage chamber, which is specifically implemented as a first channel portion and a second channel portion that are relatively staggered along the longitudinal direction of the electronic atomization device. The non-linear ventilation structure can keep at least a portion of the liquid matrix flowing into the ventilation channel from the liquid storage chamber in the ventilation channel, thereby reducing the liquid matrix flowing out through the ventilation channel. When the electronic atomization device is turned upside down, the liquid matrix hidden in the ventilation channel can flow back into the liquid storage chamber due to the pressure change, thereby maintaining the normal operation of the electronic atomization device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] One or more embodiments are exemplarily described by corresponding drawings, which do not limit the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and the figures in the drawings do not constitute proportional limitations unless otherwise stated. Obviously, the drawings described below are only some embodiments of the present application, and ordinary technicians in this field can obtain other drawings through these drawings without creative work.

[0016] Figure 1 is a schematic diagram of the structure of the electronic atomization device provided in an embodiment of the present application;

[0017] Figure 2 Yes Figure 1 The schematic diagram of the cross-sectional structure of the electronic atomization device shown along the AA direction;

[0018] Figure 3 Yes Figure 1 The schematic diagram of the cross-sectional structure of the electronic atomization device shown along the BB direction;

[0019] Figure 4 Yes Figure 1 The schematic diagram of the structure of the electronic atomization device shown is a schematic diagram of the structure of the electronic atomization device after removing the housing, battery core and airflow sensor;

[0020] Figure 5 Yes Figure 4 The schematic diagram of the cross-sectional structure of the electronic atomization device along the CC direction is shown;

[0021] Figure 6 Yes Figure 4 The schematic diagram of the cross-sectional structure of the electronic atomization device along the DD direction is shown;

[0022] Figure 7 Yes Figure 4 The exploded structural diagram of the electronic atomization device shown;

[0023] Figure 8 Yes Figure 4 A schematic diagram of the exploded structure of the electronic atomization device shown in another perspective;

[0024] Fig. 9 Yes Figure 1 A schematic diagram of the structure of the base in the electronic atomization device shown;

[0025] Fig.10 Yes Figure 1 A schematic diagram of the structure of a sealing bracket in an electronic atomization device shown;

[0026] Fig.11 Yes Fig.10 A schematic cross-sectional structure diagram of the sealing bracket shown;

[0027] Fig.12 Yes Figure 1 A schematic diagram of the structure of the atomization assembly in the electronic atomization device shown. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0029] In the following description, for the purpose of explanation rather than limitation, specific details such as specific system structures, interfaces, and technologies are provided to facilitate a thorough understanding of the present application.

[0030] The terms "first", "second", and "third" in this application are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined as "first", "second", and "third" can explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. All directional indications in the embodiments of this application (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication also changes accordingly. The terms "including" and "having" in the embodiments of this application and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but optionally also includes steps or units that are not listed, or optionally also includes other steps or components inherent to these processes, methods, products, or devices.

[0031] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0032] The present application is described in detail below with reference to the accompanying drawings and embodiments.

[0033] Figure 1It is a schematic diagram of the structure of the electronic atomization device 100 provided in an embodiment of the present application.

[0034] The electronic atomization device 100 provided in the embodiment of the present application includes several components in an external body (or shell). The overall design of the external body may vary, and the type or configuration of the external body that can define the overall size and shape of the electronic atomization device 100 may vary. Generally, the external body may be formed by a single integral shell, or may be formed by two or more separable shells; wherein the integral shell includes a structure formed by a plurality of parts fixedly connected, which is not removable, thereby becoming an integral shell. Optionally, the external body may be formed of a metal or alloy such as stainless steel or aluminum, and other suitable materials may include various plastics (e.g., polycarbonate), metal-plating over plastic, ceramics, and the like.

[0035] exist Figure 1 In the specific embodiment shown, the electronic atomization device 100 includes a housing 10, which substantially defines the outer surface of the electronic atomization device 100. The electronic atomization device 100 defines a longitudinal direction Y and has a proximal end 110 and a distal end 120 opposite to each other along the longitudinal direction Y. In use, the proximal end 110 is an end close to the user for inhalation, and the distal end 120 is an end away from the user.

[0036] In some embodiments, the shell 10 of the electronic atomization device 100 may further include a first shell, a second shell, and a third shell. The first shell is arranged near the proximal end 110 along the longitudinal direction Y and defines the proximal end 110 of the shell; the third shell is arranged near the distal end 120 along the longitudinal direction Y and defines the distal end 120 of the shell. The first shell, the second shell, and the third shell are basically coaxially arranged so that at least part of the first shell and the third shell can be extended or embedded in the second shell for fixing. Specifically, the first shell is a heating space for storing liquid matrix and heating atomization; the second shell and the third shell are electronic spaces, wherein the second shell is installed and stored with electronic devices for powering the electronic atomization device 100, and the third shell is installed and stored with electronic devices for controlling the power supply of the electronic atomization device 100. For ease of description, the external body of the electronic atomization device 100 is regarded as being formed by a single integrated shell 10 below, but it does not constitute a limitation to the present application.

[0037] Figure 2 Yes Figure 1 The schematic diagram of the cross-sectional structure of the electronic atomization device 100 along the AA direction is shown. Figure 3 Yes Figure 1 The cross-sectional structure diagram of the electronic atomization device 100 along the BB direction is shown.

[0038] See also Figure 2 and Figure 3 , the electronic atomization device 100 provided in the embodiment of the present application also includes: a rigid base 40, a flexible sealing bracket 20, an atomization assembly 30 and a conductive electrode 60. The shell 10 defines a liquid storage chamber 101 for storing a liquid matrix. Specifically, the shell 10 accommodates the sealing bracket 20, the atomization assembly 30 and the base 40. The sealing bracket 20 is at least partially used to seal the liquid storage chamber 101 and define at least part of the boundary of the liquid storage chamber 101. The atomization assembly 30 is used to receive the liquid matrix in the liquid storage chamber 101 and atomize it to generate an aerosol. An atomization chamber 211 is surrounded or defined in the sealing bracket 20, and the atomization assembly 30 is accommodated and retained in the atomization chamber 211. The conductive electrode 60 is arranged on the base 40 and is electrically connected to the atomization assembly 30.

[0039] In some specific embodiments, the electronic atomization device 100 further includes a battery cell 51, a control circuit board (not shown), an electrical connection terminal (not shown), and an airflow sensor 52, and the electrical connection terminal can be electrically connected to the conductive electrode 60. When the user uses the electronic atomization device 100 to inhale, the airflow sensor senses the internal air pressure change and sends a sensing signal to the control circuit board, so that the control circuit board controls the battery cell 51 to provide electrical energy to the conductive electrode 60 through the electrical connection terminal according to the sensing signal. The electronic atomization device 100 may also include other components such as a battery holder (not shown), which is not limited in this application.

[0040] Figure 4 Yes Figure 1 The electronic atomization device 100 shown is a schematic structural diagram after removing the housing 10, the battery cell 51 and the airflow sensor 52. Figure 5 Yes Figure 4 The cross-sectional structure diagram of the electronic atomization device 100 shown in FIG. 1 is along the CC direction. The CC direction can be Figure 1 The AA direction is consistent. Figure 6 Yes Figure 4 The cross-sectional structure diagram of the electronic atomization device 100 shown in FIG. 1 is along the DD direction. The DD direction can be Figure 1 The BB direction is consistent.

[0041] like Figure 4As shown, the sealing bracket 20 includes a top wall and an annular wall connected to each other, and a lower liquid groove 27 extending from the top wall to the annular wall is provided on the outer surface of the sealing bracket 20. The portion of the lower liquid groove 27 located on the top wall is communicated with the liquid storage chamber 101, and the sealing bracket 20 is provided with a liquid inlet 201 at the bottom of the lower liquid groove 27, so that the liquid matrix in the liquid storage chamber 101 can flow to the liquid inlet 201 through the lower liquid groove 27, and the arrow L1 shows the path of the liquid matrix flowing from the liquid storage chamber 101 into the liquid inlet 201. In some embodiments, the sealing bracket 20 is made of a flexible soft rubber material, such as silicone, rubber or thermoplastic elastomer, so that the atomizer assembly 30 can be fixed at the liquid inlet 201 by interference fit.

[0042] Depending on the usage, Fig.12 As shown, the atomization assembly 30 includes a porous body 31 and a heating element 32 coupled to the porous body 31. The porous body 31 is arranged parallel to the longitudinal direction Y of the electronic atomization device 100, and has a first side surface 311 and a second side surface 312 opposite to each other. The first side surface 311 is used to receive the liquid matrix from the liquid storage chamber 101, and the heating element 32 is coupled to the second side surface 312 for heating and atomizing the liquid matrix. The atomization assembly 30 is installed in the sealing bracket 20 in an orientation in which the second side surface 312 is located or exposed in the atomization chamber 211. The first side surface 311 faces the liquid inlet 201 and is fluidically connected to the liquid storage chamber 101, so that the liquid matrix in the liquid storage chamber 101 can be as Figure 4 and Figure 5 As shown in L1 in FIG. 2 , the liquid flows through the liquid inlet 201 to the first side surface 311, and flows to the second side surface 312 through the internal microporous structure of the porous body 31. When the heating element 32 coupled to the second side surface 312 completes heating and atomizing at least part of the liquid matrix in the porous body 31, the generated aerosol will be released from the second side surface 312 and stored in the atomization chamber 211. The above design can realize side liquid inlet, thereby improving the uniformity of liquid supply to the porous body 31.

[0043] Optionally, the heating element 32 is made of stainless steel, nickel-chromium alloy, iron-chromium-aluminum alloy or titanium, and is preferably formed on the second side 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 second side surface 312, with high atomization efficiency, less heat loss, and anti-dry burning or greatly reduced dry burning. The heating element 32 can adopt a variety of structural forms, which can be a sheet heating element with a specific pattern formed on the second side surface 312, or a heating net, a disc heating element formed by a heating wire spiral, a heating film, and other forms; for example, the specific pattern can be a serpentine shape.

[0044] In some specific embodiments, the top wall of the sealing bracket 20 is provided with an air outlet 202. Figure 2 and Figure 3 As shown, a hollow tube 102 for defining a mist guide channel is provided in the housing 10. One end of the air outlet 202 is connected to the hollow tube 102, and the other end is connected to the atomization chamber 211. At the same time, the end of the hollow tube 102 away from the air outlet 202 has an inhalation port 103, and the inhalation port 103 is connected to the mist guide channel. The hollow tube 102 is used to guide the aerosol stored in the atomization chamber 211 from the inhalation port 103 through the mist guide channel for the user to inhale.

[0045] like Figure 5 and Figure 6 As shown, the base 40 is provided with an air inlet 45, one end of the air inlet 45 is connected to the atomizing chamber 211, and the other end is connected to the outside air. At least part of the outside air can enter the atomizing chamber 211 from the air inlet 45, carry the aerosol generated by the heating and atomization of the porous body 31, flow out of the atomizing chamber 211 through the air outlet 202, and flow to the inhalation port 103 through the mist guide channel defined by the hollow tube 102 for the user to inhale.

[0046] In some embodiments, due to the insufficient support force of the soft gel material, the sealing performance between the sealing bracket 20 and the porous body 31 is poor, and the liquid matrix may penetrate into the atomization chamber 211 through the gap between the porous body 31 and the sealing bracket 20, causing leakage. Figure 2 As shown, for the leakage problem here, the electronic atomization device 100 may further include a support portion 111, and at least part of the sealing bracket 20 is located between the hollow tube 102 and the support portion 111. The support portion 111 is specifically a hard part, which is used to cooperate with the soft sealing bracket 20 to provide support in the direction toward the porous body 31, so as to press a part of the sealing bracket 20 on the first side surface 311 of the porous body 31, and then realize the sealing hard support on the side of the first side surface 311, and improve the sealing reliability at the porous body 31. Specifically, the support portion 111 is positioned on the side of the sealing bracket 20 away from the porous body 31. Optionally, the support portion 111 extends from the hollow tube 102 toward the sealing bracket 20, and the support portion 111 is spaced from the inner wall of the housing 10. The support portion 111 can also be arranged at other positions of the housing 10, such as the inner wall of the housing 10 or the hollow tube 102, and the present application does not limit this.

[0047] Figure 7 Yes Figure 4 A schematic diagram of the exploded structure of the electronic atomization device 100 is shown. Figure 8 Yes Figure 4 The schematic diagram of the exploded structure of the electronic atomization device 100 shown in another perspective.

[0048] like Figure 7 and Figure 8 As shown, the sealing bracket 20 is provided with a receiving groove 203 on the side wall opposite to and spaced from the second side surface 312, for installing a porous liquid absorbing element 2030. Optionally, the porous liquid absorbing element 2030 is made of cotton or other materials, and is used to absorb condensed liquid that penetrates into the atomizing chamber 211 from the slot 2021 near the gas outlet 202, thereby preventing liquid leakage.

[0049] See also Figures 2 to 6 , R1 shows an airflow path after the external air enters the electronic atomization device 100, that is, the airflow path through which the external air guides the aerosol stored in the atomization chamber 211 through the hollow tube 102. Figure 2 and Figure 3 As shown, the electronic atomization device 100 is provided with an air inlet channel 121 at the distal end 120, and the air inlet channel 121 is connected to the air inlet 45, so that when the user inhales, external air can enter the electronic atomization device 100 from the air inlet channel 121, and flow to the air inlet 45 along the longitudinal direction Y of the electronic atomization device 100 through the gap between the battery 51 and the shell 10. Specifically, the air inlet 45, the atomization chamber 211 and the air outlet 202 are arranged in sequence along R1, and the porous liquid absorption element 2030, the atomization chamber 211 and the porous body 31 are arranged side by side in a direction perpendicular to R1, so that the part of R1 from the air inlet 45 to the air outlet 202 passes between the porous liquid absorption element 2030 and the porous body 31, and the second side surface 312 is substantially parallel to R1. That is, in the embodiment of the present application, the atomization mode is lateral atomization. It is worth noting that after R1 enters the air inlet 45, it is a straight channel and passes through the atomization chamber 211. The arrangement logic of the above-mentioned parts can avoid the porous body 31 from blocking R1, thereby reducing the dead angle area of ​​airflow flow, effectively shortening the path of the aerosol to the inhalation port 103, ensuring that the aerosol can enter the user's mouth with a better taste, and significantly improving the user experience.

[0050] Fig. 9 Yes Figure 1 A schematic structural diagram of the base 40 in the electronic atomization device 100 is shown. Fig.10 Yes Figure 1 A schematic structural diagram of the sealing bracket 20 in the electronic atomization device 100 is shown.

[0051] like Fig. 9 As shown, the base 40 includes an air guide portion 41. The air guide portion 41 is configured in a longitudinal column, needle, or rod shape, and can be disposed on the base 40 or is a part of the base 40. Fig.10 As shown, a hole 22 for accommodating at least a portion of the air guide portion 41 is arranged in the sealing bracket 20. By inserting the air guide portion 41 into the hole 22, the sealing bracket 20 and the base 40 can be fixedly connected. Figure 4At least a portion of the air guide portion 41 passes through the top wall of the sealing bracket 20 to the liquid storage cavity 101 , and has an exposed section exposed to the liquid storage cavity 101 .

[0052] In some specific embodiments, the sealing bracket 20 is made of a flexible material, so that at least a portion of the sealing bracket 20 can provide a circumferential sealing connection between the housing 10 and the base 40, thereby preventing the liquid matrix in the liquid storage chamber 101 from leaking. Figure 4 As shown, the side wall of the sealing bracket 20 is provided with a sealing rib 23, and the sealing rib 23 can be elastically pressed against the inner wall of the housing 10 to achieve a sealed fit between the sealing bracket 20 and the housing 10. In an optional example, the side wall of the sealing bracket 20 can also be provided with a sealing surface 24, and the sealing surface 24 maintains a sealed engagement with the inner wall of the housing 10.

[0053] In some embodiments, further see Fig. 9 and Fig.10 The base 40 includes a mounting portion 42 and an annular wall 43 extending from the mounting portion 42 toward the sealing bracket 20. The lower end 26 of the sealing bracket 20 facing away from the liquid storage chamber 101 is provided with an annular groove 25. By inserting the annular wall 43 into the annular groove 25, the base 40 at least partially extends from the lower end 26 of the sealing bracket 20 into the sealing bracket 20, so that the rigid base 40 can support the flexible sealing bracket 20 from the inside, thereby preventing the sealing bracket 20 from deforming. An electrode plug hole 44 is provided on the base 40, and the conductive electrode 60 of the electronic atomization device 100 is correspondingly inserted into the electrode plug hole 44. Among them, one end of the conductive electrode 60 is connected to the electrical connection terminal, and the other end extends into the atomization chamber 211 and abuts against the heating element 32 on the second side surface 312 of the porous body 31, so as to realize the electrical connection between the atomization assembly 30 and the battery 51, and then realize the heating and atomization of the liquid matrix under the condition of power on to generate an aerosol for the user.

[0054] In an embodiment of the present application, the electronic atomization device 100 further includes a ventilation channel, one end of which is connected to the liquid storage chamber 101, and the other end is connected to the external air, providing a channel path for air to pass through the sealing bracket 20 along the longitudinal direction Y of the electronic atomization device and enter the liquid storage chamber 101, so that the electronic atomization device 100 can realize the ventilation function of the liquid storage chamber 101 through the ventilation channel.

[0055] It is understandable that during the use of the electronic atomization device 100, the atomization component 30 continuously consumes the liquid matrix in the liquid storage chamber 101, so that the air pressure in the liquid storage chamber 101 continues to decrease, resulting in an air pressure difference between the inside and outside of the liquid storage chamber 101. The imbalance of air pressure in the liquid storage chamber 101 may cause the first side surface 311 to be unable to normally absorb the liquid matrix into the porous body 31, and may also cause the air in the atomization chamber 211 to reversely osmose into the liquid storage chamber 101 through the porous body 31, and gas-liquid contact occurs on the first side surface 311 to form bubbles that block the liquid matrix from entering the porous body 31. Therefore, in order to alleviate or eliminate the air pressure difference between the inside and outside of the liquid storage chamber 101, the ventilation channel provides a path for air to enter the liquid storage chamber 101, which is used to balance the air pressure difference between the inside and outside of the liquid storage chamber 101, and avoid the problem of dry burning of the porous body 31 due to poor liquid discharge.

[0056] In some embodiments, a distance is maintained between the port of the ventilation channel close to the liquid storage chamber 101 and the first side surface 311 to prevent ventilation bubbles generated by external air entering the liquid storage chamber 101 from escaping from the port and gathering near the first side surface 311 to hinder liquid absorption.

[0057] In the embodiments of this application, see Fig.11 As shown, the ventilation channel includes a first channel portion, a connecting channel portion and a second channel portion. Among them, the first channel portion is close to and connected to the liquid storage chamber 101, which is specifically implemented as including a first groove 410, and one end of the first groove 410 away from the liquid storage chamber 101 is connected to the connecting channel portion. The connecting channel portion is arranged along a transverse direction X perpendicular to the longitudinal direction Y of the electronic atomization device 100 and is at least partially curved in an arc shape, which is specifically implemented as including a transverse groove 430 provided on the sealing bracket 20; the second channel portion is arranged parallel to the longitudinal direction Y of the electronic atomization device 100, extending from the lower end 26 of the sealing bracket 20 to the connecting channel portion, which is specifically implemented as including a longitudinal hole 420 provided on the sealing bracket 20.

[0058] exist Fig.11In the illustrated embodiment, the connecting channel portion connects the first channel portion and the second channel portion. Specifically, the end of the first groove 410 away from the liquid storage chamber 101 terminates at a transverse groove 430, and the transverse groove 430 extends around the outer periphery of the air guide portion 41 and is roughly curved in a circumferential arc of about 90°; one end of the longitudinal hole 420 is connected to the transverse groove 430, and the other end extends to the lower end 26 of the sealing bracket 20 as an air inlet port of the ventilation channel. In some specific embodiments, the ventilation port is not limited to a hole shape, and it can optionally serve as at least a part of the annular groove 25. When the sealing bracket 20 is fixedly connected to the base 40, that is, when the annular wall 43 is inserted into the annular groove 25, the air flowing in from the air inlet 45 can enter the second channel portion of the ventilation channel through the gap between the annular groove 25 and the annular wall 43.

[0059] In some specific embodiments, the first groove 410 may be provided on the outer surface of the air guide portion 41, that is, at least a portion of the outer circumference of the air guide portion 41 is recessed inwardly to form a gap with the inner surface of the hole 22. One end of the first groove 410 extends to the exposed section of the air guide portion 41 and communicates with the liquid storage chamber 101, so that the gap serves as a first channel portion to ventilate the liquid storage chamber 101.

[0060] In other specific embodiments, the first groove 410 can be formed on the inner surface of the hole 22 that contacts the air guide portion 41, that is, the first groove 410 is opened on the flexible material. One end of the first groove 410 extends to the top wall of the sealing bracket 20 and communicates with the liquid storage chamber 101. The outer surface of the air guide portion 41 cooperates with the first groove 410 on the inner surface of the hole 22 to form a first channel portion to achieve ventilation for the liquid storage chamber 101.

[0061] like Fig.11 As shown, the first channel portion is parallel to the longitudinal direction Y and is arranged staggered relative to the second channel portion, so that the first channel portion, the second channel portion and the connecting channel portion cooperate to realize a non-linear ventilation channel. Therefore, when the liquid matrix enters the ventilation channel from the liquid storage chamber 101 via the first groove 410, at least a portion of the liquid matrix can be retained in the ventilation channel, rather than directly flowing out through the ventilation channel along the order of the first groove 410, the transverse groove 430 and the longitudinal hole 420. Optionally, the transverse groove 430 can have a capillary structure, and the longitudinal hole 420 can also have a capillary structure.

[0062] It is worth noting that the ventilation channel bypasses the atomization chamber 211 along the longitudinal direction Y of the electronic atomization device 100, and / or is isolated from the atomization chamber 211. In other optional embodiments, the ventilation channel is arranged on the inner wall of the sealing bracket 20. Specifically, the ventilation channel is an air-guiding through hole formed in the sealing bracket 20, and one end of the air-guiding through hole away from the liquid storage chamber 101 extends to the lower end 26 of the sealing bracket 20 as the air inlet port of the ventilation channel and is connected to the gap between the annular groove 25 and the annular wall 43 and the air inlet 45, providing a channel path for external air to enter the liquid storage chamber 101.

[0063] In other optional embodiments, the ventilation channel is a groove defined or formed between the outer surface of the air guide portion 41 and the sealing bracket 20. The end of the groove away from the liquid storage chamber 101 extends to the lower end 26 of the sealing bracket 20 as the air inlet port and is connected to the air inlet 45 through the gap between the annular groove 25 and the annular wall 43. According to the specific usage scenario, the groove can be opened on the outer surface of the air guide portion 41; or opened on the inner surface of the hole 22 that contacts the air guide portion 41; or opened on the outer surface of the air guide portion 41 and the inner surface of the hole 22 at the same time, and the present application does not limit it here.

[0064] Optionally, the diameter or width of the ventilation channel is between 0.2 and 2.0 mm, and it has a suitable width or depth dimension to form a capillary effect. The air guide portion 41 or the base 40 is made of a hard material such as plastic to keep the air intake cross-sectional area of ​​the ventilation channel basically stable. When the air pressure in the liquid storage chamber 101 is too low, driven by the internal and external pressure difference, at least part of the external air entering from the air inlet 45 can enter the liquid storage chamber 101 through the ventilation channel to replenish air, thereby reducing the negative pressure inside the liquid storage chamber 101 and avoiding the poor liquid flow in the liquid storage chamber 101 due to the low air pressure. At the same time, the capillary effect enables the ventilation channel to retain a small amount of liquid matrix from the liquid storage chamber 101. When the air pressure in the liquid storage chamber 101 is too high due to reasons such as temperature increase, the liquid matrix can enter the ventilation channel to reduce the pressure of the liquid storage chamber 101, thereby avoiding leakage of the liquid storage chamber 101 due to excessive internal air pressure.

[0065] R2 shows another airflow path after the external air enters the electronic atomization device 100, that is, the path of the external air entering the liquid storage chamber 101 through the ventilation channel including the first channel part, the second channel part and the connecting channel part. It can be understood that after the external air enters the electronic atomization device 100 from the air inlet channel 121 and flows through the gap between the battery 51 and the shell 10 to the air inlet 45, as shown in R1, a part of it can enter the atomization chamber 211 and carry the aerosol generated by the atomization component 30 after heating the atomized liquid matrix stored in the atomization chamber 211 and is exported through the hollow tube 102 for the user to inhale; as shown in R2, another part can enter the ventilation channel from the lower end 26 of the sealing bracket 20, that is, the gap between the annular groove 25 and the annular wall 43, and enter the liquid storage chamber 101 through the longitudinal hole 420, the transverse groove 430 and the first groove 410 to replenish air to achieve the balance of the air pressure difference inside and outside the liquid storage chamber 101.

[0066] In other embodiments, the electronic atomization device 100 may also include a plurality of ventilation channels, wherein the plurality of ventilation channels may include any one or more of the above ventilation channels. For example, the electronic atomization device 100 may have two ventilation channels at the same time, wherein one ventilation channel includes a first groove 410 provided on the outer surface of the air guide portion 41 and a longitudinal hole 420 and a transverse groove 430 formed on the sealing bracket 20, and the other ventilation channel includes a first groove 410 formed on the surface of the hole 22 in contact with the air guide portion 41 and a longitudinal hole 420 and a transverse groove 430 formed on the sealing bracket 20. This application does not limit this and can be designed according to actual needs. It can be understood that the provision of multiple ventilation channels can improve the ventilation efficiency of the electronic atomization device 100 and alleviate the problem of poor liquid flow due to the imbalance of air pressure inside and outside the liquid storage chamber 101.

[0067] In some embodiments, Fig. 9 and Fig.10 As shown, capillary grooves are formed on the lower end 26 of the sealing bracket 20 and the surface of the base 40 close to the sealing bracket 20. The capillary grooves are connected to the ventilation channel, and are used to absorb and store a small amount of liquid matrix flowing out of the ventilation channel, thereby preventing the liquid matrix from directly flowing out of the electronic atomization device 100 through the air inlet 45.

[0068] Different from the prior art, the present application discloses an electronic atomization device 100. By limiting the use of non-linear ventilation in the electronic atomization device 100, at least a portion of the liquid matrix flowing into the ventilation channel from the liquid storage chamber 101 can be kept in the ventilation channel to reduce the liquid matrix leaking from the ventilation channel. In some embodiments, the non-linear ventilation defined in the present application specifically refers to that the first channel portion connected to the liquid storage chamber 101 and the second channel portion connected to the external atmosphere are relatively staggered in the longitudinal direction Y of the electronic atomization device 100. Furthermore, for the liquid matrix that cannot be retained in the ventilation channel, the present application also provides a capillary groove to connect the ventilation channel, and the capillary groove is provided on the base 40 or the sealing bracket 20, which is used to adsorb the liquid matrix flowing out of the ventilation channel, thereby continuing to alleviate the leakage of the electronic atomization device 100 to a certain extent. In a specific embodiment, the liquid matrix maintained in the ventilation channel and the capillary groove is affected by the pressure change in the electronic atomization device 100 when the state of the electronic atomization device 100 changes, such as when the electronic atomization device 100 is turned upside down or the temperature in the liquid storage chamber 101 increases, and can flow back into the liquid storage chamber 101 through the liquid guide channel to maintain the normal operation of the electronic atomization device 100.

[0069] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not used to limit the present invention. The term "and / or" used in this specification includes any and all combinations of one or more related listed items.

[0070] It should be noted that the above description is only used to illustrate the technical solution of the utility model. The utility model can also be implemented in many different forms and is not limited to the embodiments described in this description. These embodiments are not used as additional limitations on the content of the utility model. The purpose of providing these embodiments is to make the understanding of the disclosure of the utility model more thorough and comprehensive. In addition, the above-mentioned technical features continue to be combined with each other to form various embodiments not listed above, which are all regarded as the scope recorded in the description of the utility model; further, for ordinary technicians in this field, they can modify or replace the technical solutions recorded in the above-mentioned embodiments, and all these modifications and replacements do not make the essence of the corresponding technical solutions deviate from the protection scope of the technical solutions of the embodiments of the utility model.

Claims

1. An electronic atomization device, characterized in that: include: A liquid storage chamber, used for storing a liquid matrix; An atomizing assembly, used for receiving the liquid matrix in the liquid storage chamber and atomizing it to generate an aerosol; A flexible sealing bracket defines at least part of the boundary of the liquid storage chamber and at least partially accommodates and retains the atomization assembly; an atomization chamber is surrounded or defined within the sealing bracket, and the atomization assembly is accommodated and retained in the atomization chamber; A ventilation channel provides a channel path for air to pass through the sealing bracket along the longitudinal direction of the electronic atomization device and enter the liquid storage chamber; the ventilation channel includes a first channel portion and a second channel portion arranged along the longitudinal direction of the electronic atomization device, and the first channel portion and the second channel portion are relatively staggered in the longitudinal direction of the electronic atomization device.

2. The electronic atomization device according to claim 1, characterized in that: The ventilation channel bypasses the atomization chamber along the longitudinal direction of the electronic atomization device; And / or, the ventilation channel and the atomization chamber are isolated from each other.

3. The electronic atomization device according to claim 1 or 2, characterized in that: The atomizing assembly comprises: A porous body, arranged in parallel with the longitudinal direction of the electronic atomization device, and having a first side surface and a second side surface opposite to each other; the first side surface is in fluid communication with the liquid storage chamber to receive the liquid matrix, and the second side surface is located in or exposed to the atomization chamber; The heating element is combined on the second side surface and is used to heat at least a portion of the liquid matrix in the porous body to generate aerosol.

4. The electronic atomization device according to claim 1 or 2, characterized in that: Also includes: A rigid base, at least partially located in the sealing bracket and provided with an air guide extending from the sealing bracket to the liquid storage chamber; The first channel portion is close to and communicates with the liquid storage chamber, and the first channel portion is defined or formed between the outer surface of the air guide portion and the sealing bracket.

5. The electronic atomization device according to claim 4, characterized in that: The air guide portion is configured in a longitudinal column shape, a needle shape, or a rod shape.

6. The electronic atomization device according to claim 4, characterized in that: The sealing bracket is provided with a hole for accommodating the air guide portion; The first channel portion includes a first groove arranged on an outer surface of the air guide portion and / or an inner surface of the hole.

7. The electronic atomization device according to claim 4, characterized in that: A connecting channel portion perpendicular to the longitudinal direction of the electronic atomization device is arranged in the sealing bracket to connect the first channel portion and the second channel portion.

8. The electronic atomization device according to claim 7, characterized in that: The connecting channel portion is at least partially curved in an arc shape.

9. The electronic atomization device according to claim 7, characterized in that: The sealing bracket includes a lower end facing away from the liquid storage chamber; The base at least partially extends from the lower end of the sealing bracket into the sealing bracket; The second channel portion is arranged to extend from the lower end to the connecting channel portion.

10. The electronic atomization device according to claim 1 or 2, characterized in that: The diameter or width of the ventilation channel is between 0.2 and 2.0 mm.

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