Atomizer and electronic atomization device

Abstract

The present application provides an atomizer and an electronic atomization device, wherein the atomizer includes a cup assembly, a cover, and a seal; the cup assembly is provided with a liquid storage chamber, and a liquid injection port is provided at the end of the liquid storage chamber; the cover is detachably connected to the cup assembly and is used to cover the liquid injection port; the seal is at least partially located between the end of the liquid storage chamber and the cover; the seal is provided with a pressure relief port, which is used to discharge the gas in the liquid storage chamber when the cover and the cup assembly are assembled. Through the above arrangement, when the cover and the seal cooperate to block the liquid injection port of the liquid storage chamber, the gas in the liquid storage chamber is discharged from the pressure relief port, thereby preventing the pressure in the liquid storage chamber from increasing sharply and squeezing out the aerosol-generating matrix in the liquid storage chamber, which is beneficial to improving the user experience.

Description

TECHNICAL FIELD

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

[0002] The main function of an electronic atomization device is realized by an atomizer, which atomizes an aerosol generating substrate stored therein to generate an aerosol for a user to smoke. Based on the required function, the atomizer usually has a liquid storage cavity for storing the aerosol generating substrate and a heating body for atomizing the aerosol generating substrate.

[0003] The existing open-type electronic atomization device needs to inject the aerosol generating substrate into the liquid storage cavity frequently, i.e. needs to inject liquid frequently. During the process of sealing the liquid storage cavity after completing the injection of liquid, the pressure in the liquid storage cavity will increase sharply, causing the aerosol generating substrate in the liquid storage cavity to be squeezed out and resulting in liquid leakage, which seriously affects the user experience. SUMMARY

[0004] Therefore, the present application provides an atomizer and an electronic atomization device to solve the technical problem of liquid leakage caused by the sharp increase in internal pressure of the liquid storage cavity during the process of sealing the liquid storage cavity after completing the injection of liquid in the prior art.

[0005] To solve the above technical problem, the first technical solution provided by the present application is to provide an atomizer, comprising a cup body assembly, a cover body and a sealing member; the cup body assembly is provided with a liquid storage cavity, and an end portion of the liquid storage cavity is provided with a liquid injection port; the cover body is detachably connected with the cup body assembly and is used for covering the liquid injection port; the sealing member is at least partially located between the end portion of the liquid storage cavity and the cover body; the sealing member is provided with a pressure relief port, and the pressure relief port is used for discharging gas in the liquid storage cavity when the cover body and the cup body assembly are assembled.

[0006] The pressure relief port is configured in a first state and a second state; during the process of configuring the pressure relief port from the first state to the second state, the pressure relief port communicates the liquid injection port with the outside atmosphere; in the second state, the pressure relief port is closed.

[0007] During the process of configuring the pressure relief port from the first state to the second state, the cross-sectional area of the pressure relief port gradually decreases; in the second state, the cross-sectional area of the pressure relief port is zero.

[0008] The pressure relief port is a groove or a through hole.

[0009] The sealing member is provided with a plurality of pressure relief ports, and the plurality of pressure relief ports are symmetrically arranged.

[0010] The sealing member is arranged on the cover body.

[0011] The sealing member comprises a ring-shaped body, which is arranged around the liquid injection port.

[0012] The pressure relief port is arranged on the surface of the end face of the ring-shaped body abutting the liquid injection port.

[0013] The ring-shaped body comprises a base and a compression part, the compression part abuts the end face of the liquid injection port; the elasticity of the compression part is higher than that of the base.

[0014] The cross-sectional shape of the pressure relief port is triangular.

[0015] The sealing member further comprises a first protruding ring arranged on the ring-shaped body, the outer diameter of the first protruding ring is smaller than that of the ring-shaped body, and the first protruding ring is arranged between the side face of the liquid injection port and the protrusion.

[0016] The cup body assembly is rotationally connected with the cover body.

[0017] The cover body has a protrusion corresponding to the surface of the liquid injection port, the protrusion is used for being pressed into the liquid storage cavity to cover the liquid injection port; the ring-shaped body is arranged around the protrusion, and the first protruding ring is arranged between the side face of the liquid injection port and the protrusion.

[0018] The sealing member comprises a block-shaped body; the block-shaped body has a second protruding ring covering the surface of the liquid injection port, the second protruding ring abuts the end face of the liquid injection port, and the pressure relief port is arranged on the second protruding ring.

[0019] The elasticity of the second protruding ring is higher than that of the block-shaped body.

[0020] The second protruding ring is arranged around the liquid injection port.

[0021] The pressure relief port is a through hole, and the extension direction of the through hole is the same as the radial direction of the second protruding ring.

[0022] The block-shaped body has a through hole; the block-shaped body has two second protruding rings covering the surface of the liquid injection port, and the two second protruding rings are arranged on the two sides of the through hole, respectively.

[0023] The cover body has a cavity and is snap-connected with the cup body assembly; the block-shaped body is arranged in the cavity.

[0024] To solve the above technical problems, the second technical solution provided by the present application is to provide an electronic atomization device, comprising an atomizer and a main machine; the atomizer is any one of the atomizers described above, and the main machine is connected with the atomizer.

[0025] The beneficial effects of the present application: Different from the prior art, the atomizer in the present application comprises a cup body assembly, a cover body and a sealing element; the cup body assembly is provided with a liquid storage cavity, and the end of the liquid storage cavity is provided with a liquid injection port; the cover body is detachably connected with the cup body assembly and is used for covering the liquid injection port; the sealing element is at least partially located between the end of the liquid storage cavity and the cover body; the sealing element is provided with a pressure relief port, which is used for discharging the gas in the liquid storage cavity when the cover body and the cup body assembly are assembled. Through the above arrangement, in the process of cooperating the cover body and the sealing element to block the liquid injection port of the liquid storage cavity, the gas in the liquid storage cavity is discharged from the pressure relief port, which avoids the rapid increase of the pressure in the liquid storage cavity and extrudes the aerosol generating substrate in the liquid storage cavity, and is beneficial to improve the user experience. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0027] Figure 1 is a block schematic diagram of an electronic atomization device provided by the present application;

[0028] Figure 2 is a structural schematic diagram of a first embodiment of an atomizer provided by the present application;

[0029] Figure 3 is Figure 2 a structural schematic diagram of a sealing element in the first embodiment of the atomizer;

[0030] Figure 4 is a structural diagram of the sealing process of the existing atomizer;

[0031] Figure 5 is a structural diagram of the sealing process of the first embodiment of the atomizer provided by the present application;

[0032] Figure 6 is a local structural schematic diagram of the first embodiment of the atomizer provided by the present application before the liquid injection port is sealed;

[0033] Figure 7 is Figure 6 an enlarged schematic diagram of the sealing element in the A area;

[0034] Figure 8 is a local structural schematic diagram of the first embodiment of the atomizer provided by the present application after the liquid injection port is sealed;

[0035] Figure 9is a structural schematic view of another implementation of the pressure relief port on the sealing member in the first embodiment of the atomizer provided in the embodiments of the present application;

[0036] Figure 10 is a comparison result graph of the atomizer and the existing open atomizer provided in the embodiments of the present application;

[0037] Figure 11 is a structural schematic view of the second embodiment of the atomizer provided in the embodiments of the present application;

[0038] Figure 12 is a structural schematic view of the sealing member; Figure 11

[0039] Figure 13 is a partial structural schematic view of the liquid injection port before sealing in the second embodiment of the atomizer provided in the embodiments of the present application;

[0040] Figure 14 is an enlarged schematic view of the B area in the second embodiment of the atomizer provided in the embodiments of the present application; Figure 13

[0041] is a partial structural schematic view of the liquid injection port after sealing in the second embodiment of the atomizer provided in the embodiments of the present application; Figure 15

[0042] is an enlarged schematic view of the B area corresponding to another implementation of the pressure relief port on the sealing member in the second embodiment of the atomizer provided in the embodiments of the present application. Figure 16 DETAILED DESCRIPTION

[0043] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0044] ​​The terms "first", "second", "third", "etc." are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implying a number of the technical features indicated. Therefore, the features defined as "first", "second", "third", etc. can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly specified. All directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications also change accordingly. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion. 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 can optionally include steps or units not listed, or can optionally include other steps or units inherent to the process, method, product or device.

[0045] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearance of the phrase in various places in the specification does not necessarily all refer to the same embodiment, nor does it necessarily refer to a separate or alternative embodiment in isolation from other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0046] Please refer to Figure 1 , Figure 1 is a block schematic diagram of an electronic atomization device provided by the present application.

[0047] The electronic atomization device can be used for atomization of liquid substrate. The electronic atomization device includes an atomizer 1 and a main machine 2 connected to each other. The atomizer 1 is used to store liquid aerosol generating substrate and atomize the aerosol generating substrate to form an aerosol for a user to smoke, and the liquid aerosol generating substrate can be a liquid such as a medicinal liquid or a plant leaf liquid. The atomizer 1 can be used in different fields, such as medical treatment, electronic aerosolization, etc. The main machine 2 includes a battery (not shown in the figure), an air flow sensor (not shown in the figure), a controller (not shown in the figure), and other elements. The battery is used to supply power to the atomizer 1, so that the atomizer 1 can atomize the aerosol generating substrate to form an aerosol, i.e. the main machine 2 provides energy for the operation of the atomizer 1. The air flow sensor is used to detect changes in air flow in the electronic atomization device, and the controller controls whether the atomizer 1 works according to the changes in air flow detected by the air flow sensor and a preset program. The atomizer 1 is connected to the main machine 2, and the atomizer 1 and the main machine 2 can be integrally arranged or detachably connected, which is designed according to specific needs.

[0048] Referring to Figure 2 , Figure 2 is a structural schematic diagram of a first embodiment of an atomizer provided by the present application.

[0049] The atomizer 1 comprises a cup assembly 10, a cover 11 and a sealing member 12. The cup assembly 10 is provided with a liquid storage cavity 101, and an end of the liquid storage cavity 101 is provided with a liquid injection opening 102 through which a user supplements aerosol generating substrate in the liquid storage cavity 101. The cover 11 is used to cover the liquid injection opening 102, and the cover 11 is detachably connected to the cup assembly 10 to facilitate exposure of the liquid injection opening 102 for supplementing aerosol generating substrate in the liquid storage cavity 101. The sealing member 12 is at least partially arranged between the end of the liquid storage cavity 101 and the cover 11, and the sealing member 12 is arranged on the cover 11. On the basis that the cover 11 covers the liquid injection opening 102, the sealing member 12 seals the liquid storage cavity 101, that is, the cover 11 and the sealing member 12 cooperate to block the liquid injection opening 102 of the liquid storage cavity 101 to prevent aerosol generating substrate in the liquid storage cavity 101 from leaking out of the liquid injection opening 102.

[0050] Specifically, the cup assembly 10 comprises a shell 103 and a heating body 104, and the heating body 104 is arranged in a receiving cavity (not shown in the figure) formed by the shell 103; optionally, the heating body 104 is detachably connected to the shell 103 to facilitate replacement of the heating body 104. In the state that the heating body 104 is arranged in the receiving cavity formed by the shell 103, the shell 103 and the heating body 104 cooperate to form the liquid storage cavity 101. In this embodiment, the cover 11 and the cup assembly 10 are coaxially arranged, and the liquid injection opening 102 of the liquid storage cavity 101 is arranged towards the cover 11.

[0051] In one embodiment, the heating body 104 comprises a liquid inlet pipe (not shown in the figure), a liquid guide member (not shown in the figure) and a heating member (not shown in the figure). The liquid inlet pipe is annular in structure, and the liquid guide member and the heating member are arranged in the internal space formed by the liquid inlet pipe; the liquid guide member and the heating member are also annular in structure, and the heating member is arranged on the side of the liquid guide member away from the liquid inlet pipe, and the internal space formed by the heating member is an atomization cavity 105; that is, the heating body 104 is annular in structure as a whole, and the internal space formed by the annular structure is the atomization cavity 105. The liquid guide member can be a cotton core or other liquid guide member with capillary action; the heating member can be a heating wire, a heating mesh, a heating circuit or the like. The liquid inlet pipe is provided with a liquid inlet opening (not shown in the figure), and the aerosol generating substrate in the liquid storage cavity 101 enters the liquid guide member through the liquid inlet opening on the liquid inlet pipe. The liquid guide member guides the aerosol generating substrate to the heating member by capillary action, and the heating member heats and atomizes the aerosol generating substrate to generate aerosol which is released into the atomization cavity 105. In other embodiments, the heating body 104 can also comprise a hollow columnar porous ceramic and a heating member arranged on the hollow columnar porous ceramic.

[0052] The cover 11 comprises a first connecting piece 111. The cover 11 is connected and fixed with the cup body assembly 10 through the first connecting piece 111 and the end of the heating body 104 in a rotating connection, that is, the cup body assembly 10 is connected with the cover 11 in a rotating connection. A through hole 1111 is arranged on the first connecting piece 111, and the inner wall surface of the through hole 1111 and the outer surface of the end of the heating body 104 close to the cover 11 are provided with threads matched with each other, so as to realize the rotating connection of the first connecting piece 111 and the heating body 104. In other embodiments, the outer wall surface of the through hole 1111 and the inner surface of the end of the heating body 104 close to the cover 11 can be provided with threads matched with each other, so as to realize the rotating connection of the first connecting piece 111 and the heating body 104. Optionally, the threads on the heating body 104 are arranged on the liquid inlet pipe.

[0053] The end of the shell 103 away from the cover 11 is provided with an air inlet 106, and the air inlet 106 communicates the outside atmosphere with the atomization cavity 105. The cover 11 further comprises a suction nozzle part 112, and the suction nozzle part 112 is provided with an aerosol outlet channel 1121, which is arranged corresponding to the through hole 1111, and the through hole 1111 communicates the atomization cavity 105 with the aerosol outlet channel 1121. The outside atmosphere enters the atomization cavity 105 through the air inlet 106, and the aerosol atomized by the heating body 104 enters the aerosol outlet channel 1121 through the through hole 1111, and the user inhales the aerosol through the port of the aerosol outlet channel 1121. The first connecting piece 111 and the suction nozzle part 112 can be integrally formed, or can be fixed together by buckling, adhesive or the like.

[0054] In the embodiment, the surface of the first connecting piece 111 of the cover 11 close to the liquid injection port 102 has a protrusion 1112, that is, the surface of the cover 11 close to the liquid injection port 102 has a protrusion 1112. The protrusion 1112 is used to press into the liquid injection port 102 of the liquid storage cavity 101 to cover the liquid injection port 102. In order to realize better sealing, the protrusion 1112 is arranged around the through hole 1111 in a whole circle to form a ring-shaped protrusion. Optionally, the surface of the protrusion 1112 close to the liquid injection port 102 is provided with a groove, which can be a ring-shaped groove or a plurality of spaced grooves.

[0055] Please refer to Figure 3 , Figure 3 is Figure 2 a structure diagram of the sealing member.

[0056] Please refer to Figure 2 and Figure 3In one embodiment, the sealing member 12 is arranged around the outer surface of the protrusion 1112 to seal the liquid storage cavity 101 when the protrusion 1112 is pressed into the liquid storage cavity 101. The sealing member 12 includes a ring-shaped body 121 and a first protruding ring 122 arranged on the ring-shaped body 121; the ring-shaped body 121 and the first protruding ring 122 are arranged around the protrusion 1112. The ring-shaped body 121 is arranged between the end surface of the liquid injection port 102 and the cover 11; that is, in the state that the cover 11 covers the liquid injection port 102, the ring-shaped body 121 is arranged between the end surface of the liquid injection port 102 and the cover 11. That is, the ring-shaped body 121 is arranged around the liquid injection port 102. The outer diameter of the first protruding ring 122 is smaller than the outer diameter of the ring-shaped body 121 and the inner diameter of the liquid injection port 102, and the first protruding ring 122 is arranged between the side surface of the liquid injection port 102 and the cover 11; that is, in the state that the cover 11 covers the liquid injection port 102, the first protruding ring 122 is pressed into the liquid storage cavity 101 and arranged between the inner side surface of the liquid injection port 102 and the protrusion 1112 of the cover 11. In one embodiment, the inner surface of the first protruding ring 122 is flush with the inner surface of the ring-shaped body 121, which facilitates the manufacturing process of the sealing member 12 and makes the sealing member 12 have a smooth inner surface, so that the sealing member 12 can better fit the outer surface of the protrusion 1112 and thus has a better sealing effect. On this basis, the outer diameter of the first protruding ring 122 is smaller than the outer diameter of the ring-shaped body 121, and the first protruding ring 122 does not completely cover the surface of the ring-shaped body 121 close to the liquid injection port 102, so that part of the surface of the ring-shaped body 121 close to the liquid injection port 102 can abut against the end surface of the liquid injection port 102 to seal the liquid storage cavity 101. In one embodiment, the material of the sealing member 12 is silica gel, and the ring-shaped body 121 and the first protruding ring 122 are both circular rings and are integrally formed.

[0057] It can be understood that the ring-shaped body 121 of the sealing member 12 is extruded to complete the sealing during the rotation and tightening of the cover 11 and the cup assembly 10. In order to achieve a better sealing effect, the first protruding ring 122 is arranged between the side surface of the liquid injection port 102 and the cover 11, so the first protruding ring 122 is an optional structure and can be selected as needed.

[0058] Generally, an air exchange structure is arranged, one end of the air exchange structure communicates with the liquid storage cavity 101, and the other end directly or indirectly communicates with the outside atmosphere to exchange air in the liquid storage cavity 101, so that the aerosol generating substrate in the liquid storage cavity 101 can smoothly enter the heating body 104. When the liquid storage cavity 101 is sealed, the air pressure in the liquid storage cavity 101 increases sharply, and the aerosol generating substrate can be squeezed out from the gaps between the air exchange structure, the heating body 104, the outer shell 103, the cover 11 and other structures, resulting in liquid leakage and reducing the user experience. The present application solves this technical problem by arranging a pressure relief port 124 on the sealing member 12.

[0059] Referring to Figure 4 and Figure 5 , Figure 4 is a structural diagram of a sealing process of an existing atomizer, Figure 5 is a structural diagram of a sealing process of a first embodiment of an atomizer provided by the present application.

[0060] The existing atomizer comprises a first structural member 30, a second structural member 31 and a compressible sealing member 32 (as shown in Figure 4 ). The second structural member 31 can store liquid inside, and the first structural member 30 and the second structural member 31 are connected to form a closed cavity through the compressible sealing member 32, and the first structural member 30 and the second structural member 31 are connected to open and seal by changing the distance of the compressible sealing member 32. The sealing member 32 is fixed to the first structural member 30, when the sealing member 32 is not sealed, the gas pressure in the second structural member 31 is P0; after the sealing member 32 contacts the second structural member 31, a seal is formed, at this time the gas pressure in the second structural member 31 is P1; as the sealing proceeds, the internal gas is compressed, the pressure rapidly increases, after the sealing is completed, the gas pressure in the second structural member 31 is P2 (wherein P0

[0061] The first embodiment of the atomizer provided by the present application comprises a first structural member 40, a second structural member 41 and a compressible sealing member 42, wherein a pressure relief port 124 is arranged on the sealing member 42, and the pressure relief port 124 communicates the internal space of the second structural member 41 with the atmosphere (as shown in Figure 5 ). The second structural member 41 can store liquid inside, and the first structural member 40 and the second structural member 41 are connected to form a closed cavity through the compressible sealing member 42, and the first structural member 40 and the second structural member 41 are connected to open and seal by changing the distance of the compressible sealing member 42. The sealing member 42 is fixed to the first structural member 40, when the sealing member 42 is not sealed, the gas pressure in the second structural member 41 is P0; the pressure relief port 124 is compressed together with the compression of the sealing member 42, but the pressure relief port 124 can still discharge the gas in the second structural member 41 during the compression process, at this time the gas pressure in the second structural member 41 is P3; when the sealing is completed, the pressure relief port 124 will be finally closed due to compression, forming a seal, and the gas pressure in the second structural member 41 is P4 (wherein P0=P3

[0062] The setting position and mode of the pressure relief port 124 on the sealing member 12 will be specifically introduced below.

[0063] Referring to Figures 6-8 ,Figure 6 is a partial structure schematic diagram of the atomizer before the sealing of the liquid injection port in the first embodiment provided by the present application, Figure 7 is Figure 6 is an enlarged schematic diagram of the sealing element in region A in Figure 8 is a partial structure schematic diagram of the atomizer after the sealing of the liquid injection port in the first embodiment provided by the present application.

[0064] The sealing element 12 is provided with a pressure relief port 124, which is used to discharge the gas in the liquid storage cavity 101 when the cover body 11 and the cup body assembly 10 are assembled. In an embodiment, the pressure relief port 124 is configured in a first state and a second state; when the pressure relief port 124 is in the first state (before the sealing of the liquid injection port 102), the pressure relief port 124 is completely open, the cover body 11 and the sealing element 12 do not block the liquid injection port 102, and the pressure relief port 124 communicates the liquid injection port 102 with the outside atmosphere; when the pressure relief port 124 is in the second state (after the sealing of the liquid injection port 102), the pressure relief port 124 is completely closed, the cover body 11 and the sealing element 12 complete the blocking of the liquid injection port 102, and the pressure relief port 124 no longer communicates the liquid injection port 102 with the outside atmosphere. In the process of configuring the pressure relief port 124 from the first state to the second state, the pressure relief port 124 communicates the liquid injection port 102 with the outside atmosphere, and the pressure relief port 124 is gradually closed; in the second state, the pressure relief port 124 is completely closed, and no longer communicates the liquid injection port 102 with the outside atmosphere (as shown in Figure 8 In the process of cooperating the cover body 11 and the sealing element 12 to block the liquid injection port 102 of the liquid storage cavity 101, the pressure relief port 124 is configured from the first state to the second state, the gas in the liquid storage cavity 101 is discharged from the pressure relief port 124, the pressure in the liquid storage cavity 101 is prevented from increasing sharply to squeeze out the aerosol generating substrate in the liquid storage cavity 101, and the use experience of the user is improved.

[0065] In the present embodiment, the pressure relief port 124 is arranged on the surface of the annular body 121 for abutting against the end face of the liquid injection port 102; in the process of cooperating the cover body 11 and the sealing member 12 to block the liquid injection port 102 of the liquid storage cavity 101, the end face of the liquid injection port 102 extrudes the annular body 121 of the sealing member 12 at the same time, and the pressure relief port 124 arranged on the annular body 121 is gradually compressed, so that the cross-sectional area of the pressure relief port 124 gradually decreases; after the cooperation of the cover body 11 and the sealing member 12 is completed to block the liquid injection port 102, the pressure relief port 124 is completely compressed to have a cross-sectional area of zero, so as to realize the sealing of the liquid injection port 102 and prevent the aerosol generating substrate in the liquid storage cavity 101 from leaking out of the liquid injection port 102. That is, in the process of configuring the pressure relief port 124 from the first state to the second state, the cross-sectional area of the pressure relief port 124 gradually decreases; in the second state, the cross-sectional area of the pressure relief port 124 is zero. In other embodiments, in the process of configuring the pressure relief port 124 from the first state to the second state, the cross-sectional area of the pressure relief port 124 does not change, and the pressure relief port 124 is gradually blocked, so that the cross-sectional area of the part of the pressure relief port 124 for connecting the liquid injection port 102 with the external atmosphere gradually decreases; in the second state, the pressure relief port 124 is completely blocked, and the pressure relief port 124 no longer connects the liquid injection port 102 with the external atmosphere, and other structures in the atomizer 1 are correspondingly changed. The arrangement mode of the pressure relief port 124 can make it in the first state and the second state, and the specific arrangement mode is designed according to the needs.

[0066] It can be understood that when the annular body 121 contacts the end face of the liquid injection port 102, the pressure relief port 124 arranged on the surface of the annular body 121 close to the end face of the liquid injection port 102 is not compressed; in the process of rotating and tightening the end portion of the first connecting member 111 and the heating body 104, the protrusion 1112 and the first protruding ring 122 are pressed into the liquid storage cavity 101, and at the same time, the annular body 121 is extruded, the pressure relief port 124 is extruded, the gas in the liquid storage cavity 101 enters the pressure relief port 124 through the gap between the first protruding ring 122 and the liquid injection port 102, and then is discharged to the external atmosphere, so as to prevent the pressure in the liquid storage cavity 101 from rapidly increasing and avoid liquid leakage.

[0067] In the present embodiment, the pressure relief port 124 is a groove, that is, a groove is arranged on the surface of the annular body 121 for abutting against the end face of the liquid injection port 102; in the state that the groove is not completely compressed, the liquid injection port 102 is connected with the external atmosphere through the groove; specifically, the part of the surface of the annular body 121 close to the liquid injection port 102, which is not covered by the first protruding ring 122, is provided with the groove (see FIG. 6). Figure 3 、 Figure 6 Figure 7). The length of the groove can be designed as required, as long as one end of the groove extends to the liquid injection port 102, and the liquid injection port 102 can be communicated with the outside. Optionally, the cross-sectional shape of the pressure relief port 124 is triangular, square, etc., and is specifically designed as required.

[0068] In another embodiment, the pressure relief port 124 is a through hole, which can also be a bent through hole. For example, one end of the through hole is arranged on the annular body 121 to abut the end face of the liquid injection port 102 and communicate with the liquid injection port 102, and the other end of the through hole is arranged on the surface of the annular body 121 away from the protrusion 1112 of the cover 11 (see Figure 9 , Figure 9 is a structural schematic diagram of another embodiment of the pressure relief port on the sealing member in the first embodiment of the atomizer provided by the present application). In another embodiment, the pressure relief port 124 can also be partially a groove and partially a through hole. In the state that the through hole is not completely compressed, the liquid injection port 102 is communicated with the outside atmosphere through the through hole. In the process of sealing the liquid injection port 102, the port of the through hole arranged on the surface of the annular body 121 away from the protrusion 1112 of the cover 11 is gradually compressed to zero cross-sectional area. Compared with arranging the pressure relief port on the side wall of the liquid storage cavity 101, the pressure relief port 124 of the present application is gradually closed by extrusion in the process of sealing the liquid injection port 102, and there is no need for a special step and element to seal the pressure relief port on the side wall of the liquid storage cavity 101.

[0069] In the present embodiment, the annular body 121 of the sealing member 12 is a ring structure, and a plurality of pressure relief ports 124 can be arranged on the annular body 121 to facilitate faster discharge of the gas in the liquid storage cavity 101 before sealing is completed, and reduce the gas pressure in the liquid storage cavity 101 after sealing is completed. Among them, the plurality of pressure relief ports 124 can be arranged symmetrically.

[0070] In an embodiment, the annular body 121 includes a base (not shown in the figure) and a compression portion (not shown in the figure) arranged in layers, the compression portion abuts the end face of the liquid injection port 102, and the elasticity of the compression portion is higher than that of the base; the pressure relief port 124 is arranged on the compression portion to better compress the pressure relief port 124; optionally, the elasticity of the first convex ring 122 is the same as that of the base, that is, the first convex ring 122 and the base can be integrally formed. In another embodiment, the sealing member 12 is integrally formed. The arrangement of the sealing member 12 is specifically designed as required, and the present application is not limited thereto.

[0071] The structures of the existing open atomizer and the first embodiment of the atomizer 1 provided by the present application are respectively tested. The structures of the existing open atomizer and the atomizer 1 provided by the present application are basically the same, except that the sealing members 12 are different, and the sealing member of the existing open atomizer does not have a pressure relief port. The experimental results are shown in Figure 10 Figure 10 ​is a comparison result diagram of the atomizer provided by the embodiment of the present application and the existing open atomizer. As shown in Figure 10 It can be seen that the existing open atomizer starts to form a seal when the thread is rotated to 1.25 turns, the air pressure in the liquid storage cavity rapidly rises, and the air pressure in the liquid storage cavity when rotated to 2 turns is the highest, which can reach about 3200 Pa; and the structure of the first embodiment of the atomizer 1 provided by the present application starts to form a seal when the thread is rotated to 1.6 turns, and the air pressure in the liquid storage cavity 101 when rotated to 2 turns is the highest, and the highest air pressure in the liquid storage cavity 101 is about 1500 Pa. It is verified by the experiment that the pressure relief port 124 provided on the sealing member 12 can reduce the air pressure in the liquid storage cavity 101 during the sealing process, and prevent the aerosol generating substrate in the liquid storage cavity 101 from being squeezed out.

[0072] Please refer to Figure 11 , Figure 11 is a structural schematic diagram of the second embodiment of the atomizer provided by the embodiment of the present application.

[0073] In the second embodiment of the atomizer 1, the cup body assembly 10 is snap-fitted with the cover body 11, and other structures are changed accordingly. Specifically, the atomizer 1 comprises a cup body assembly 10, a cover body 11 and a sealing member 12. The cup body assembly 10 is provided with a liquid storage cavity 101, and the end of the liquid storage cavity 101 is provided with a liquid filling port 102, through which the user supplements the aerosol generating substrate in the liquid storage cavity 101. The cover body 11 is used to cover the liquid filling port 102, and the cover body 11 is detachably connected with the cup body assembly 10 to facilitate the exposure of the liquid filling port 102 and the supplement of the aerosol generating substrate in the liquid storage cavity 101. The sealing member 12 is arranged between the end of the liquid storage cavity 101 and the cover body 11, and on the basis of the cover body 11 covering the liquid filling port 102, the sealing member 12 seals the liquid storage cavity 101, that is, the cover body 11 and the sealing member 12 cooperate to block the liquid filling port 102 of the liquid storage cavity 101, preventing the aerosol generating substrate in the liquid storage cavity 101 from leaking out of the liquid filling port 102.

[0074] The cup body assembly 10 comprises an outer shell 103, a heating body 104 and a base 107. One end of the outer shell 103 is an open end, and the base 107 is arranged at the open end and seals the open end. The heating body 104 is arranged in the accommodation cavity (not shown in the figure) formed by the outer shell 103; optionally, one end of the heating body 104 is fixed to the outer shell 103, and the other end is fixed to the base 107, and the heating body 104 is detachably connected with the outer shell 103 and the base 107 to facilitate replacement of the heating body 104. In the state that the heating body 104 is arranged in the accommodation cavity formed by the outer shell 103, the outer shell 103, the heating body 104 and the base 107 cooperate to form the liquid storage cavity 101. In this embodiment, the cover body 11 and the cup body assembly 10 are coaxially arranged, and the liquid filling port 102 of the liquid storage cavity 101 is arranged towards the cover body 11.

[0075] The heating body 104 comprises a liquid inlet pipe (not shown in the figure), a liquid guide (not shown in the figure) and a heating element (not shown in the figure). The liquid inlet pipe is annular, and the liquid guide and the heating element are arranged in the internal space formed by the liquid inlet pipe. The liquid guide and the heating element are also annular, and the heating element is arranged on the side of the liquid guide away from the liquid inlet pipe. The internal space formed by the heating element is the atomization cavity 105. That is, the heating body 104 is annular as a whole, and the internal space formed by the annular structure is the atomization cavity 105. The liquid guide can be a cotton core or a porous ceramic with capillary action. The heating element can be a heating wire, a heating net or a heating circuit.

[0076] The cover body 11 has a cavity 110 and an aerosol outlet channel 1121. The sealing member 12 is arranged in the cavity 110 and surrounds the aerosol outlet channel 1121. The cover body 11 is snap-connected with the cup body assembly 10. Specifically, the cover body 11 is snap-connected with the shell 103 in the cup body assembly 10. One of the cover body 11 and the shell 103 is provided with a clamping groove, and the other is provided with a clamping hook. The cover body 11 and the shell 103 are snap-connected through the clamping groove and the clamping hook.

[0077] The shell 103 further forms an air flow channel 108, which communicates the aerosol outlet channel 1121 with the atomization cavity 105. The base 107 is provided with an air inlet 106, which communicates the external atmosphere with the atomization cavity 105. The external atmosphere enters the atomization cavity 105 through the air inlet 106, and the aerosol atomized by the heating body 104 enters the aerosol outlet channel 1121 through the air flow channel 108. The user inhales the aerosol through the port of the aerosol outlet channel 1121.

[0078] Generally, a gas exchange structure is arranged. One end of the gas exchange structure communicates with the liquid storage cavity 101, and the other end directly or indirectly communicates with the external atmosphere, so as to exchange air in the liquid storage cavity 101, so that the aerosol generating substrate in the liquid storage cavity 101 can smoothly enter the heating body 104. When the liquid storage cavity 101 is sealed, the air pressure in the liquid storage cavity 101 increases sharply, and the aerosol generating substrate will be squeezed out from the gaps between the gas exchange structure, the heating body 104, the shell 103 and the cover body 11 and other structures, resulting in liquid leakage and reducing the user's experience. The present application solves this technical problem by arranging a pressure relief port 124 on the sealing member 12.

[0079] Please refer to Figures 12-15 , Figure 12 is Figure 11 a structure diagram of the sealing member, Figure 13This is a schematic diagram of the partial structure of the second embodiment of the atomizer provided in the embodiment of the present application before the liquid injection port is sealed. Figure 14 yes Figure 13 A magnified schematic diagram of area B in the middle. Figure 15 This is a schematic diagram of the partial structure of the second embodiment of the atomizer provided in the embodiment of the present application after the liquid injection port is sealed.

[0080] See also Figure 11 and Figure 12 The sealing member 12 includes a block body 123, the size and shape of which match the size and shape of the cavity 110 formed by the cover 11. A through hole 1231 is provided on the block body 123, which cooperates with the mist outlet channel 1121 to set the block body 123 in the cavity 110 formed by the cover 11. When the cover 11 covers the liquid injection port 102, the block body 123 of the sealing member 12 is arranged between the end face of the liquid injection port 102 and the cover 11, and the block body 123 covers the liquid injection port 102; that is, the block body 123 is used to cover the liquid injection port 102 and seal the liquid injection port 102.

[0081] Furthermore, a second convex ring 1232 is provided on the surface of the block body 123 for covering the liquid injection port 102. The second convex ring 1232 abuts against the end surface of the liquid injection port 102 to achieve a better seal for the liquid injection port 102. When the sealing member 12 covers the liquid injection port 102, the second convex ring 1232 is arranged around the liquid injection port 102 (as shown in FIG. Figure 11 that is, the projection of the second convex ring 1232 on the plane where the end surface of the liquid injection port 102 is located surrounds the liquid injection port 102. A pressure relief port 124 is provided on the second convex ring 1232.

[0082] In other embodiments, the second convex ring 1232 can cover part of the liquid injection port 102, and the liquid injection port 102 can be connected to the outside atmosphere through the pressure relief port 124 set on the second convex ring 1232. The setting method of the second convex ring 1232 is not limited in this application.

[0083] In this embodiment, two liquid inlets 102 are provided at the end of the liquid storage chamber 101, one on each side of the airflow channel 108. The surface of the block body 123, which covers the liquid inlets 102, has two circular second protruding rings 1232, one on each side of the through-hole 1231. The two second protruding rings 1232 are provided corresponding to the two liquid inlets 102. The pressure relief port 124 can be provided on each of the two second protruding rings 1232, or on only one of the two second protruding rings 1232.

[0084] The sealing member 12 is provided with a pressure relief port 124; the pressure relief port 124 is arranged on the second protruding ring 1232. The pressure relief port 124 is configured in a first state and a second state; when the pressure relief port 124 is in the first state (before the liquid inlet port 102 is sealed), the pressure relief port 124 is completely open, the cover body 11 and the sealing member 12 do not seal the liquid inlet port 102, and the pressure relief port 124 communicates the liquid inlet port 102 with the external atmosphere; when the pressure relief port 124 is in the second state (after the liquid inlet port 102 is sealed), the pressure relief port 124 is completely closed, the cover body 11 and the sealing member 12 complete the sealing of the liquid inlet port 102, and the pressure relief port 124 no longer communicates the liquid inlet port 102 with the external atmosphere. During the process of configuring the pressure relief port 124 from the first state to the second state, the pressure relief port 124 communicates the liquid inlet port 102 with the external atmosphere; when the pressure relief port 124 is in the second state, the pressure relief port 124 is closed and no longer communicates the liquid inlet port 102 with the external atmosphere (as shown in FIG. 10). Figure 15 During the process of the cover body 11 and the sealing member 12 cooperating to seal the liquid inlet port 102 of the liquid storage cavity 101, the pressure relief port 124 is configured from the first state to the second state, the gas in the liquid storage cavity 101 is discharged from the pressure relief port 124, the pressure in the liquid storage cavity 101 is prevented from increasing sharply to squeeze out the aerosol generating substrate in the liquid storage cavity 101, and the user's experience is improved.

[0085] In this embodiment, during the process of the cover body 11 and the sealing member 12 cooperating to seal the liquid inlet port 102 of the liquid storage cavity 101, i.e., during the process of the cover body 11 being buckled to the cup body assembly 10, the block-shaped body 123 and the second protruding ring 1232 of the sealing member 12 are simultaneously extruded to complete the sealing. During the process of sealing the liquid inlet port 102, the pressure relief port 124 arranged on the second protruding ring 1232 is gradually compressed, and the cross-sectional area of the pressure relief port 124 gradually decreases; after the sealing of the liquid inlet port 102 is completed, the pressure relief port 124 is completely compressed to have a cross-sectional area of zero, so as to seal the liquid inlet port 102 and prevent the aerosol generating substrate in the liquid storage cavity 101 from leaking out of the liquid inlet port 102. That is, during the process of configuring the pressure relief port 124 from the first state to the second state, the cross-sectional area of the pressure relief port 124 gradually decreases; when the pressure relief port 124 is in the second state, the cross-sectional area of the pressure relief port 124 is zero. In other embodiments, during the process of configuring the pressure relief port 124 from the first state to the second state, the cross-sectional area of the pressure relief port 124 does not change, the pressure relief port 124 is gradually blocked, the cross-sectional area of the part of the pressure relief port 124 that communicates the liquid inlet port 102 with the external atmosphere gradually decreases; when the pressure relief port 124 is in the second state, the pressure relief port 124 is completely blocked, the pressure relief port 124 no longer communicates the liquid inlet port 102 with the external atmosphere, and other structures in the atomizer 1 are correspondingly changed. The pressure relief port 124 can be configured in the first state and the second state, and the specific configuration mode is designed as needed.

[0086] It can be understood that when the second convex ring 1232 is in contact with the end surface of the liquid injection port 102, the pressure relief port 124 provided on the second convex ring 1232 is not compressed; along with the process of clamping the cover body 11 and the shell 103, the second convex ring 1232 is extruded, and the gas in the liquid storage cavity 101 flows to the space formed by the second convex ring 1232 through the pressure relief port 124, and then is discharged to the atmosphere outside through the pressure relief port 124 on the second convex ring 1232, so as to prevent the gas pressure in the liquid storage cavity 101 from increasing sharply and avoid liquid leakage.

[0087] In an embodiment, the pressure relief port 124 is a groove, that is, a groove is provided on the surface of the second convex ring 1232 for abutting against the end surface of the liquid injection port 102; in the process of sealing the liquid injection port 102, the liquid injection port 102 and the atmosphere outside are communicated through the groove in a state that the groove is not completely compressed, and along with the sealing process, the groove is gradually compressed to zero cross-sectional area. Figure 14 Optionally, the cross-sectional shape of the groove is triangular, square, etc., which is specifically designed according to needs.

[0088] In an embodiment, the pressure relief port 124 is a through hole, which penetrates the second convex ring 1232 in the radial direction of the second convex ring 1232, that is, the extension direction of the through hole is the same as the radial direction of the second convex ring 1232 (see Figure 16 , Figure 16 is an enlarged schematic view of the B area corresponding to another embodiment of the pressure relief port on the sealing member in the second embodiment of the atomizer provided in the present application). In the process of sealing the liquid injection port 102, the liquid injection port 102 and the atmosphere outside are communicated through the through hole in a state that the through hole is not completely compressed, and along with the sealing process, the through hole is gradually compressed to zero cross-sectional area.

[0089] In the present embodiment, the second convex ring 1232 is annular structure, and a plurality of pressure relief ports 124 can be provided on the second convex ring 1232, so as to facilitate the gas in the liquid storage cavity 101 to be discharged faster before the sealing is completed, and reduce the gas pressure in the liquid storage cavity 101 after the sealing is completed. The plurality of pressure relief ports 124 can be symmetrically arranged.

[0090] In an embodiment, the elasticity of the second convex ring 1232 of the sealing member 12 is higher than that of the block-shaped body 123, and the pressure relief port 124 is provided on the second convex ring 1232, so as to better compress the pressure relief port 124. In another embodiment, the sealing member 12 is integrally formed. The arrangement mode of the sealing member 12 is specifically designed according to needs, which is not limited in the present application.

[0091] The above merely describes the embodiments of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation, or direct or indirect application in other related technical fields, which is made according to the content of the present application specification and drawings, is also included in the patent protection scope of the present application.

Claims

1. An atomizer, characterized in that: include: The cup body assembly is provided with a liquid storage cavity, and the end of the liquid storage cavity is provided with a liquid injection port; a cover body, the cover body being detachably connected to the cup body assembly and being used to cover the liquid filling port; A sealing member is at least partially located between the end of the liquid storage chamber and the cover body; a pressure relief port is provided on the sealing member, and the pressure relief port is used to discharge the gas in the liquid storage chamber when the cover body and the cup body assembly are assembled; the pressure relief port is configured to be a first state and a second state; during the process of configuring the pressure relief port from the first state to the second state, the pressure relief port connects the liquid injection port with the outside atmosphere; when the pressure relief port is in the second state, the pressure relief port is closed.

2. The atomizer according to claim 1, characterized in that During the process of configuring the pressure relief port from the first state to the second state, the cross-sectional area of ​​the pressure relief port gradually decreases; when the pressure relief port is in the second state, the cross-sectional area of ​​the pressure relief port is zero.

3. The atomizer according to claim 1, characterized in that The pressure relief port is a groove or a through hole.

4. The atomizer according to claim 1, characterized in that The sealing member is provided with a plurality of pressure relief ports, which are symmetrically arranged.

5. The atomizer according to claim 1, characterized in that The sealing member is arranged on the cover body.

6. The atomizer according to any one of claims 1 to 5, characterized in that: The sealing member includes an annular body, and the annular body is arranged around the liquid injection port.

7. The atomizer according to claim 6, characterized in that The pressure relief port is provided on a surface of the annular body abutting against an end surface of the liquid injection port.

8. The atomizer according to claim 7, characterized in that The annular body includes a base portion and a compression portion that are stacked, the compression portion abuts against an end surface of the liquid injection port, and the elasticity of the compression portion is higher than that of the base portion.

9. The atomizer according to claim 7, characterized in that The cross-section of the pressure relief port is triangular.

10. The atomizer according to claim 7, characterized in that The sealing member further includes a first convex ring provided on the annular body, wherein the outer diameter of the first convex ring is smaller than the outer diameter of the annular body, and the first convex ring is provided on a side surface of the liquid injection port.

11. The atomizer according to claim 10, characterized in that The cup body assembly is rotatably connected to the cover body.

12. The atomizer according to claim 11, characterized in that The cover body has a protrusion on the surface corresponding to the liquid injection port, and the protrusion is used to press into the liquid storage cavity to cover the liquid injection port; the annular body is arranged around the protrusion, and the first protruding ring is arranged between the side of the liquid injection port and the protrusion.

13. The atomizer according to any one of claims 1 to 5, characterized in that: The sealing member includes a block-shaped body; a surface of the block-shaped body covering the liquid injection port has a second convex ring, the second convex ring abuts against the end surface of the liquid injection port, and the pressure relief port is provided on the second convex ring.

14. The atomizer according to claim 13, characterized in that The elasticity of the second convex ring is higher than the elasticity of the block body.

15. The atomizer according to claim 13, characterized in that The second convex ring is arranged around the liquid injection port.

16. The atomizer according to claim 13, characterized in that The pressure relief port is a through hole, and an extending direction of the through hole is the same as a radial direction of the second convex ring.

17. The atomizer according to claim 13, characterized in that The block body has a through hole; the surface of the block body covering the liquid injection port has two second convex rings, and the two second convex rings are respectively arranged on both sides of the through hole.

18. The atomizer according to claim 13, characterized in that The cover body has a cavity and is snap-connected with the cup body assembly; the block body is arranged in the cavity.

19. An electronic atomization device, characterized in that: It comprises an atomizer and a host; the atomizer is the atomizer according to any one of claims 1 to 18, and the host is connected to the atomizer.

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