Seal, atomizer and electronic atomization device

Abstract

The present invention relates to a seal, an atomizer and an electronic atomization device. The atomizer includes a seal and a fixedly arranged atomization core, and the atomizer is provided with a liquid storage cavity, a mounting hole and an inhalation passage. The seal includes a pulling part, a first sealing part and a second sealing part. The second sealing part is arranged on the atomization core, and the pulling part and the first sealing part can move relative to the mounting hole so that the seal has a sealing state and a use state. In the sealing state, the pulling part, the first sealing part and the second sealing part are connected to each other, and the first sealing part and the second sealing part respectively isolate and seal the inhalation passage and the atomization core from the liquid storage cavity; the pulling part is arranged in the inhalation passage, and one end of the pulling part protrudes out of the inhalation passage. And / or, in the use state, the pulling part is separated from the first sealing part and pulled out from the inhalation passage to open the inhalation passage; the first sealing part is separated from the second sealing part to conduct the liquid storage cavity and the atomization core. In this way, the potential liquid leakage problem existing in the atomizer can be eliminated.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic atomization, and particularly to a sealing member, an atomizer, and an electronic atomization device including the atomizer. Background Art

[0002] There are dozens of carcinogens in the smoke of tobacco combustion. For example, tar can cause great harm to human health, and the smoke diffuses in the air to form second-hand smoke, which can also cause harm to the body when inhaled by the surrounding people. Therefore, smoking is prohibited in most public places. The electronic atomization device has a similar appearance and taste to ordinary cigarettes, but usually does not contain other harmful components such as tar and suspended particles in cigarettes. Therefore, the electronic atomization device is generally used as a substitute for cigarettes.

[0003] For traditional electronic atomization devices, during transportation or storage before the first use, the liquid storage cavity cannot be completely sealed. Under the influence of external factors such as negative pressure, vibration, and temperature change, the liquid in the liquid storage cavity can flow into the atomization core, and thus there is a risk of liquid leakage in the atomization core. Summary of the Invention

[0004] One technical problem solved by the present invention is how to prevent the atomizer from having a potential liquid leakage problem before the first use.

[0005] An atomizer includes a sealing member and a fixedly arranged atomization core. The atomizer is provided with a liquid storage cavity, a mounting hole, and an inhalation passage; the sealing member includes a pulling portion, a first sealing portion, and a second sealing portion. The second sealing portion is arranged on the atomization core. The pulling portion and the first sealing portion can move relative to the mounting hole to make the sealing member have a sealing state and a use state;

[0006] In the sealing state, the pulling portion, the first sealing portion, and the second sealing portion are connected to each other. The first sealing portion and the second sealing portion respectively isolate and seal the inhalation passage and the atomization core from the liquid storage cavity; the pulling portion is arranged in the inhalation passage, and one end of the pulling portion protrudes from the inhalation passage; and / or,

[0007] In the use state, the pulling portion is separated from the first sealing portion and pulled out from the inhalation passage to open the inhalation passage; the first sealing portion is separated from the second sealing portion to conduct the liquid storage cavity and the atomization core.

[0008] In one embodiment, when changing from the sealing state to the use state, the pulling portion and the first sealing portion slide relative to the mounting hole to be spaced apart from the second sealing portion along the sliding direction.

[0009] In one embodiment, the pulling portion and / or the first sealing portion are in interference fit with the mounting hole in the sealed state; alternatively, the first sealing portion is in interference fit with the mounting hole in the use state.

[0010] In one embodiment, the connection strength between the first sealing portion and the pulling portion is the first connection strength, the connection strength between the first sealing portion and the second sealing portion is the second connection strength, and the first connection strength is greater than the second connection strength.

[0011] In one embodiment, the seal further includes a first connecting portion and a second connecting portion. The first sealing portion includes an abutting portion and a mating portion that can cooperate with the mounting hole, which are connected to each other. The first connecting portion is connected between the mating portion and the pulling portion, and the minimum cross-sectional dimension of the first connecting portion is smaller than the cross-sectional dimensions of the mating portion and the pulling portion; the second connecting portion is connected between the second sealing portion and the abutting portion, and the minimum thickness of the second connecting portion is smaller than the thickness of the second sealing portion, the thickness of the abutting portion, and the cross-sectional dimension of the first connecting portion.

[0012] In one embodiment, the first connecting portion is located outside the suction channel.

[0013] In one embodiment, the second connecting portion is annular and is disposed around the abutting portion in the circumferential direction.

[0014] In one embodiment, the cross-sectional dimension of the abutting portion is larger than that of the mating portion; in the use state, the mating portion cooperates with the mounting hole, and the abutting portion is fixed on the mating portion and is abutted outside the mounting hole.

[0015] In one embodiment, the second sealing portion is sleeved on the atomization core, the second sealing portion has an inner surface in contact with the atomization core, and an air exchange groove is formed on the inner surface; in the use state, the air exchange groove communicates the liquid storage cavity with the outside.

[0016] In one embodiment, the atomizer has an inner wall surface and a contact surface outside the atomization core. The second sealing portion abuts against the contact surface. The inner wall surface is directly connected to the contact surface and defines part of the boundary of the liquid storage cavity. A liquid guiding groove is formed on the inner wall surface, and the end of the liquid guiding groove extends to the connection between the inner wall surface and the contact surface.

[0017] In one embodiment, the pulling portion can be in clearance fit with the mounting hole and the suction channel.

[0018] In one embodiment, it further includes a housing and a base assembly that jointly enclose the liquid storage cavity. The mounting hole is provided on the base assembly, the atomization core is disposed within the base assembly, the housing includes an outer shell and an inner tube provided with the suction channel. The outer shell is sleeved on the base assembly, the inner tube is located within the outer shell, one end of the inner tube is connected to the outer shell and the other end is inserted into the base assembly, and the first sealing portion is located outside the suction channel in the use state.

[0019] An electronic atomization device includes a power supply assembly and the atomizer according to any one of the above, and the power supply assembly is detachably connected to the atomizer.

[0020] A seal includes a pulling portion, a first sealing portion, and a second sealing portion. The second sealing portion is used for sleeving on the element to be sealed. The connection strength between the first sealing portion and the pulling portion is a first connection strength, and the connection strength between the first sealing portion and the second sealing portion is a second connection strength. The first connection strength is greater than the second connection strength.

[0021] In one embodiment, the seal further includes a first connecting portion and a second connecting portion. The first sealing portion includes an abutting portion and a cooperating portion that are connected to each other. The first connecting portion is connected between the cooperating portion and the pulling portion, and the minimum cross-sectional dimension of the first connecting portion is smaller than the cross-sectional dimensions of the cooperating portion and the pulling portion. The second connecting portion is connected between the second sealing portion and the abutting portion. The first sealing portion, the second sealing portion, and the second connecting portion jointly enclose an open cavity for receiving the workpiece. The minimum thickness of the second connecting portion is smaller than the thickness of the second sealing portion, the thickness of the abutting portion, and the cross-sectional dimension of the first connecting portion.

[0022] In one embodiment, the second connecting portion is annular and is disposed around the abutting portion in the circumferential direction.

[0023] In one embodiment, the cross-sectional dimension of the abutting portion is greater than the cross-sectional dimension of the cooperating portion.

[0024] One technical effect of an embodiment of the present invention is that before the atomizer is used for the first time, the seal is in a sealed state, and both the first sealing portion and the second sealing portion jointly block the liquid storage cavity, preventing the liquid in the liquid storage cavity from entering the atomization core and avoiding the leakage of the liquid leaking from the surface of the atomization core to the outside of the atomizer. At the same time, the first sealing portion blocks the mounting hole, isolating the liquid storage cavity from the suction channel, preventing the liquid in the liquid storage cavity from entering the suction channel through the mounting hole, and finally avoiding the leakage of the liquid to the outside of the atomizer through the suction channel. Eliminate the hidden danger of liquid leakage existing in the atomizer. At the same time, by providing the above-mentioned seal and fixedly arranging the atomization core, the stability and reliability of the installation of the atomization core can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 FIG. 6 is a schematic perspective view of the atomizer provided in an embodiment when the seal is in a sealed state;

[0026] Figure 2 For Figure 1 FIG. 12 is a schematic perspective view of the atomizer shown when the seal is in a use state;

[0027] Figure 3 For Figure 1 FIG. 18 is a schematic cross-sectional perspective view of the atomizer shown;

[0028] Figure 4 For Figure 1 FIG. 24 is a schematic plan cross-sectional view of the atomizer shown;

[0029] Figure 5 For Figure 2 FIG. 30 is a schematic plan cross-sectional view of the atomizer shown in a first direction;

[0030] Figure 6 For Figure 1 FIG. 36 is a schematic perspective view of the seal in the atomizer shown;

[0031] Figure 7 For Figure 6 FIG. 42 is a schematic front view of the seal shown;

[0032] Figure 8 For Figure 6 FIG. 48 is a schematic perspective view of the first sealing portion in the seal shown;

[0033] Figure 9 For Figure 6 FIG. 54 is a schematic cross-sectional perspective view of the seal shown;

[0034] Figure 10 For Figure 2 FIG. 60 is a schematic plan cross-sectional view of the atomizer shown in a second direction. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0035] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Preferred embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the disclosure of the present invention more thorough and comprehensive.

[0036] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "inner", "outer", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only embodiments.

[0037] Referring to Figure 1 and Figure 2 , an electronic atomization device provided by an embodiment of the present invention includes an atomizer 10 and a power supply assembly. The power supply assembly is connected to the atomizer 10. For example, a detachable connection relationship is formed between the atomizer 10 and the power supply assembly. The power supply assembly supplies power to the atomizer 10. The atomizer 10 converts electrical energy into heat energy. The liquid in the atomizer 10 absorbs the heat energy and is atomized to form a smoke that can be inhaled by the user. The liquid can be an aerosol generating matrix such as e-liquid. After all the liquid in the atomizer 10 is consumed, the atomizer 10 can be removed from the power supply assembly and discarded, and then a new atomizer 10 filled with liquid can be reinstalled on the power supply assembly. Therefore, the atomizer 10 can be a disposable consumable, while the power supply assembly can be reused. When the electrical energy in the power supply assembly is consumed, the power supply assembly can be charged through an external charging device so that the power supply assembly can be recycled for the next time.

[0038] Referring to Figure 3, in some embodiments, the atomizer 10 includes a seal 100, an atomization core 200, a base assembly 300, and a housing 400. The atomization core 200 is disposed within the base assembly 300. The housing 400 includes an outer shell 410 and an inner tube 420. The inner tube 420 is generally in a columnar structure and is disposed within the cavity formed by the outer shell 410. The upper end of the inner tube 420 is connected to the outer shell 410, and the lower end of the inner tube 420 is inserted into the base assembly 300. An inhalation passage 421 is formed in the inner tube 420, and the inhalation passage 421 extends along the axial direction of the inner tube 420. The housing 400 and the base assembly 300 jointly define a liquid storage cavity 430 for storing liquid. The base assembly 300 is further provided with a mounting hole 310 and an air intake passage 320. The air intake passage 320 communicates the inhalation passage 421 with the outside. When the user sucks at the upper end opening of the inhalation passage 421, the outside air carries the smoke through the air intake passage 320 and enters the interior of the inhalation passage 421 through the lower end opening of the inhalation passage 421, so that the user can inhale the smoke at the upper end opening. Of course, when the seal 100 is removed, the mounting hole 310 will communicate with both the liquid storage cavity 430 and the inhalation passage simultaneously.

[0039] The atomization core 200 is fixedly disposed within the base assembly 300. The atomization core 200 may include a ceramic matrix and a heating element. The ceramic matrix may be made of a porous ceramic material, such that a large number of micropores exist inside the ceramic matrix to form a certain porosity. The micropores can form a capillary action, enabling the ceramic matrix to absorb and buffer the liquid stored in the liquid storage cavity 430. The ceramic matrix has an atomization surface, and the heating element may be made of a metal material and attached to the atomization surface. The heating element has a reasonable resistance value. When the power supply assembly energizes the heating element, the heating element converts electrical energy into heat energy, and the liquid on the atomization surface absorbs the heat energy of the heating element and is atomized to form smoke.

[0040] See Figure 3 , Figure 6 and Figure 7, the seal 100 can be made of silicone material, and in this case, the seal 100 is a silicone seal. The seal 100 includes a first seal portion 110, a second seal portion 120, and a pulling portion 130. The first seal portion 110 is inserted into the mounting hole 310, and the first seal portion 110 can always block the mounting hole 310, thereby completely isolating the originally interconnected liquid storage chamber 430 and the suction passage 421. The second seal portion 120 is disposed on the atomization core 200. The second seal portion 120 can form a seal for gas and liquid, prevent the liquid in the liquid storage chamber 430 from leaking, and ensure the airtightness of the atomizer 10. The pulling portion 130 is inserted into the suction passage 421, and one end of the pulling portion 130 protrudes from the suction passage 421. It can be understood that one end of the pulling portion 130 refers to the end that is not connected to the first seal portion 110. The first seal portion 110 and the pulling portion 130 can move relative to the mounting hole 310, so that the seal 100 has a sealed state and a use state. The user can realize the conversion between the sealed state and the use state by pulling the free end of the pulling portion 130. Of course, in some embodiments, the sealed state and the use state are non-reversible states, that is, the seal 100 can be unidirectionally converted from the sealed state to the use state, but cannot be restored from the use state to the sealed state. In Figure 4 In the shown sealed state, the pulling portion 130, the first seal portion 110, and the second seal portion 120 are connected to each other. The first seal portion 110 is connected between the pulling portion 130 and the second seal portion 120. The first seal portion 110 closes the liquid storage chamber 430, so that the atomization core 200 and the liquid storage chamber 430 are isolated from each other, preventing the liquid in the liquid storage chamber 430 from flowing into the atomization core 200. In Figure 5 In the shown use state, the pulling portion 130 is separated from the first seal portion 110 and pulled out from the suction passage 421. The first seal portion 110 is separated from the second seal portion 120 and the liquid storage chamber 430 is opened, so that the liquid in the liquid storage chamber 430 can enter the atomization core 200. In some specific embodiments, the seal 100 is made by an integrally formed method. It can be understood that the integrally formed method can, on the one hand, achieve a better sealing effect and avoid liquid leakage from gaps and joints; on the other hand, it simplifies the assembly process and improves the production and assembly efficiency.

[0041] In some embodiments, the connection strength between the first sealing portion 110 and the pulling portion 130 is the first connection strength, and the connection strength between the first sealing portion 110 and the second sealing portion 120 is the second connection strength. The value of the first connection strength is greater than the value of the second connection strength. For example, the above connection strength can be manifested as tensile strength. Given that the first connection strength is greater than the second connection strength, when a gradually increasing tensile force is applied to the entire seal 100, the second connection strength will reach the critical value first, causing the connection between the first sealing portion 110 and the second sealing portion 120 to be broken and separated first. After the two are separated, the first sealing portion 110 moves relative to the mounting hole 310. In this embodiment, the two slide relative to each other. When the movement of the first sealing portion 110 relative to the mounting hole 310 is restricted and the tensile force continues to increase, the first connection strength will reach the critical value last, causing the first sealing portion 110 and the pulling portion 130 to be separated last. Another example is that the above connection strength can be manifested as torsional strength. When a gradually increasing torque is applied to the entire seal 100, the first sealing portion 110 and the second sealing portion 120 are separated first, and the first sealing portion 110 and the pulling portion 130 are separated last.

[0042] Refer to Figure 3 , Figure 6 and Figure 7 , specifically, the seal 100 further includes a first connecting portion 141 and a second connecting portion 142. The pulling portion 130 is disposed in the suction passage 421. Before the atomizer 10 is first used, the free end of the pulling portion 130 protrudes a certain distance from the upper opening of the suction passage 421, so that the free end of the pulling portion 130 is exposed outside the entire housing 410, so that the user can apply a force to the pulling portion 130. The entire pulling portion 130 may be generally in a columnar structure, such as a cylindrical structure. The first sealing portion 110 includes a mating portion 111 and an abutting portion 112 that are connected to each other. The mating portion 111 can cooperate with the mounting hole 310. The mating portion 111 may be generally in a cylindrical structure, and the abutting portion 112 may be generally in a flat plate structure. The first connecting portion 141 is connected between the mating portion 111 and the pulling portion 130. The minimum cross-sectional dimension of the first connecting portion 141 is smaller than the cross-sectional dimensions of the mating portion 111 and the pulling portion 130, so that the minimum cross-sectional dimension of the first connecting portion 141 is the weakest part. The structural strength of this weakest part is the first connection strength, and the first connection strength will be lower than the structural strengths of the mating portion 111 and the pulling portion 130. When a gradually increasing tensile force or torque is applied to the seal 100, this weakest part will break first, so that the pulling portion 130 and the mating portion 111 are separated from each other, that is, the entire pulling portion 130 and the first sealing portion 110 are separated from each other. Obviously, the mating portion 111, the pulling portion 130, and the first connecting portion 141 will enclose an annular groove 151, that is, the pulling portion 130 and the first sealing portion 110 break first at the annular groove 151 therebetween.

[0043] Referring to Figure 3 、 Figure 6 and Figure 9 , the second connecting portion 142 is generally in a ring structure. The second connecting portion 142 is connected to the periphery of the abutting portion 112, so that the second connecting portion 142 is disposed around the abutting portion 112. The second connecting portion 142 is connected between the abutting portion 112 and the second sealing portion 120, so that the second sealing portion 120 is also disposed around the second connecting portion 142. The second sealing portion 120 is generally in a cylindrical structure and sleeved on the atomization core 200. The abutting portion 112, the first connecting portion 141 and the second sealing portion 120 together enclose an open cavity 160, and the open cavity 160 is used to accommodate the atomization core 200. Obviously, the pulling portion 130, the matching portion 111 and the first connecting portion 141 are all located outside the open cavity 160. The minimum thickness of the second connecting portion 142 is smaller than the thicknesses of the second sealing portion 120 and the abutting portion 112, so that the minimum thickness portion of the second connecting portion 142 is the weakest portion, and the structural strength of this weakest portion is the second connection strength. The second connection strength will be lower than the structural strengths of the abutting portion 112 and the second sealing portion 120. When a gradually increasing pulling force or torque is applied to the seal 100, this weakest portion will break first, so that the abutting portion 112 and the second sealing portion 120 are separated from each other, that is, the entire second sealing portion 120 is separated from the first sealing portion 110. Obviously, the second sealing portion 120, the second connecting portion 142 and the abutting portion 112 will enclose an annular groove 152, that is, the first sealing portion 110 and the second sealing portion 120 break first at the annular groove 152 therebetween.

[0044] At the same time, the minimum thickness of the second connecting portion 142 is smaller than the cross-sectional dimension of the first connecting portion 141, so that the structural strength of the second connecting portion 142 is lower than the structural strength of the first connecting portion 141, that is, the second connection strength is lower than the first connection strength. When a gradually increasing pulling force or torque is applied to the seal 100, the second connecting portion 142 breaks first relative to the first connecting portion 141, so that the separation between the first sealing portion 110 and the second sealing portion 120 precedes the separation between the first sealing portion 110 and the pulling portion 130.

[0045] The cross-sectional dimension of the pulling part 130 is smaller than that of the mating part 111. The mating part 111 can form an interference fit with the mounting hole 310, so that the mating part 111 can completely block the mounting hole 310. The pulling part 130 can form a clearance fit with the suction channel 421 and the mounting hole 310, making it easy for the pulling part 130 to be pulled out from the suction channel 421 and the mounting hole 310, and also reducing the frictional resistance of the entire seal 100 during the sliding process. The cross-sectional dimension of the abutting part 112 is larger than that of the mating part 111, so that the abutting part 112 cannot be inserted into the mounting hole 310 at all.

[0046] Refer to Figure 3 and Figure 4 Before the atomizer 10 is used for the first time, the seal 100 is in a sealed state. The first sealing part 110 and the second sealing part 120 together block the liquid storage cavity 430, preventing the liquid in the liquid storage cavity 430 from entering the atomization core 200 and avoiding the leakage of the liquid oozing from the surface of the atomization core 200 through the air inlet channel 320 to the outside of the atomizer 10. At the same time, the mating part 111 of the first sealing part 110 forms an interference fit with the mounting hole 310, so that the liquid storage cavity 430 and the suction channel 421 are completely isolated, preventing the liquid in the liquid storage cavity 430 from entering the suction channel 421 through the mounting hole 310 and finally avoiding the leakage of the liquid to the outside of the atomizer 10 through the suction channel 421. The first connecting part 141 can be located inside the mounting hole 310. Therefore, through the sealing of the mounting hole 310 and the liquid storage cavity 430 by the seal 100, the liquid in the liquid storage cavity 430 can be effectively prevented from leaking to the outside of the atomizer 10 through the suction channel 421 or the atomization core 200, thereby eliminating the liquid leakage hidden danger existing in the atomizer 10.

[0047] Refer to Figure 5 、 Figure 6 and Figure 8, when it is necessary to use the atomizer 10 to draw in the smoke, the seal 100 can be put into use. Specifically, by applying a gradually increasing pulling force upward on the pulling part 130, since the second connecting part 142 breaks relative to the first connecting part 141 first, the abutting part 112 and the entire first sealing part 110 are separated from the second sealing part 120 and move upward. At this time, the first sealing part 110 will open the liquid storage cavity 430, so that the liquid in the liquid storage cavity 430 can flow into the atomization core 200. During the process that the pulling part 130 drives the matching part 111 to continue moving upward relative to the mounting hole 310, the abutting part 112 follows the matching part 111 to move upward. In view of the fact that the abutting part 112 cannot pass through the mounting hole 310, when the abutting part 112 abuts against the base assembly 300 and is located outside the mounting hole 310, the first sealing part 110 stops moving, and the abutting part 112 and the second sealing part 120 are arranged at intervals along the sliding direction (up and down direction) of the seal 100, and the matching part 111 and the mounting hole 310 form an interference fit to block the mounting hole 310. When the pulling force continues to increase, the first connecting part 141 will break, so that the pulling part 130 is separated from the matching part 111, and finally the pulling part 130 is pulled out from the suction channel 421. At the same time, the matching part 111 only cooperates with the mounting hole 310, so that the matching part 111 cannot enter the suction channel 421, that is, the matching part 111 is located outside the suction channel 421, preventing the matching part 111 from cooperating with the suction channel 421 to block it. Of course, in other embodiments, a torque can also be applied to the pulling part 130, that is, the pulling part 130 and the matching part 111 rotate relative to the mounting hole 310, so that the second connecting part 142 and the first connecting part 141 break successively.

[0048] When the abutting part 112 abuts against the base assembly 300 and completely opens the liquid storage cavity 430, the liquid in the liquid storage cavity 430 enters the atomization core 200, so that the atomization core 200 prepares for atomizing the liquid. At the same time, the matching part 111 still blocks the mounting hole 310, preventing the liquid in the liquid storage cavity 430 from leaking into the suction channel 421 through the mounting hole 310. When the first connecting part 141 is still connected to the matching part 111, the first connecting part 141 is located outside the suction channel 421, so that the matching part 111 and the first connecting part 141 do not block the suction channel 421. Coupled with the fact that the pulling part 130 has been pulled out from the suction channel 421, on the one hand, it can make the external gas carry the smoke smoothly enter the suction channel 421, and on the other hand, it can eliminate the interference of the pulling part 130, so that the user can draw in the smoke at the upper end opening of the suction channel 421 ( Figure 10 The dotted arrow shown is the flow path of the gas). Therefore, when the seal 100 is put into use, the atomizer 10 can start to work normally so that the user can draw in the smoke.

[0049] By providing the above-mentioned seal 100 and fixedly arranging the atomization core 200, the stable reliability of the installation of the atomization core 200 can be improved. The relative movement of the seal 100 with respect to the atomization core 200 can cause the seal 100 to change from a sealed state to a use state. The structure of the seal 100 is simple, and it can form a good sealing performance for the liquid storage cavity 430 and the installation hole 310, effectively preventing the leakage of the liquid in the liquid storage cavity 430. At the same time, by making the first connection strength greater than the second connection strength, it is possible to prevent the situation where the pulling portion 130 and the first sealing portion 110 break first and the first sealing portion 110 cannot be pulled continuously. Ensure that the first sealing portion 110 first detaches from the second sealing portion 120 and blocks the installation hole 310, and then the pulling portion 130 detaches from the first sealing portion 110 to smoothly pull out the suction channel 421, so that the operation of changing the seal 100 from the sealed state to the use state becomes more convenient. Of course, in other embodiments, the first connection strength can be made less than the second connection strength. When the pulling portion 130 and the first sealing portion 110 break first, high-pressure gas can be introduced to make the first sealing portion 110 detach from the second sealing portion 120 later and block the installation hole 310.

[0050] Referring to Figure 3 and Figure 4 , in some embodiments, the base assembly 300 has a contact surface and an inner wall surface disposed close to the atomization core 200. Obviously, the contact surface and the inner wall surface are located outside the atomization core 200, and the contact surface is directly connected to the inner wall surface. The inner wall surface is used to define a partial boundary of the liquid storage cavity 430, and at least one liquid guiding groove 330 is recessed on the inner wall surface. The liquid guiding groove 330 can extend along the inner wall surface to above the abutting portion 112 in the sealed state (i.e., on the side away from the atomization core 200), that is, the end of the liquid guiding groove 330 is spaced from the connection portion 101 between the contact surface and the inner wall surface. Of course, the end of the liquid guiding groove 330 can directly extend to the connection portion 101 between the contact surface and the inner wall surface. When in the sealed state, both the first sealing portion 110 and the second sealing portion 120 isolate the liquid guiding groove 330 and the atomization core 200, preventing liquid from entering the atomization core 200 from the liquid guiding groove 330. When in the use state, the abutting portion 112 detaches from the second sealing portion 120, causing the second sealing portion 120 to form a notch, and the liquid in the liquid guiding groove 330 can enter the atomization core 200 through this notch. By providing the liquid guiding groove 330, the liquid can have a definite flow direction, avoiding the generation of turbulence, enabling the liquid in the liquid guiding groove 330 to quickly flow into the atomization core 200 to ensure the liquid demand of the atomization core 200 per unit time and avoiding dry burning of the atomization core 200 due to insufficient liquid supply.

[0051] Referring to Figure 5 and Figure 9, in some embodiments, the second sealing portion 120 has an inner surface in contact with the atomization core 200, and an air exchange groove 121 is formed on the inner surface. When the seal 100 is in use, the air exchange groove 121 communicates the liquid storage cavity 430 and the air intake passage 320. When the liquid in the liquid storage cavity 430 decreases due to consumption, an unfilled release space will be formed in the liquid storage cavity 430. At this time, external gas enters the release space through the air intake passage 320 and the air exchange passage in sequence, so that the air pressure in the liquid storage cavity 430 is equal to the external air pressure, avoiding the liquid storage cavity 430 from being unable to supply liquid to the atomization core 200 quickly due to negative pressure, and preventing the atomization core 200 from dry burning due to insufficient liquid supply.

[0052] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0053] The above-described embodiments only represent several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the appended claims.

Claims

1. An atomizer, characterized in that, it includes a seal and a fixedly arranged atomization core. The atomizer is provided with a liquid storage cavity, a mounting hole and an inhalation channel; the seal includes a pulling part, a first sealing part and a second sealing part. The second sealing part is arranged on the atomization core. The pulling part and the first sealing part can move relative to the mounting hole so that the seal has a sealing state and a use state; In the sealing state, the pulling part, the first sealing part and the second sealing part are connected to each other. The first sealing part and the second sealing part respectively isolate and seal the inhalation channel and the atomization core from the liquid storage cavity; the pulling part is arranged in the inhalation channel, and one end of the pulling part protrudes from the inhalation channel; and / or, In the use state, the pulling part is separated from the first sealing part and pulled out from the inhalation channel to open the inhalation channel; the first sealing part is separated from the second sealing part to conduct the liquid storage cavity and the atomization core; the pulling part and / or the first sealing part are in interference fit with the mounting hole in the sealing state; or, the first sealing part is in interference fit with the mounting hole in the use state; the pulling part can be in clearance fit with the inhalation channel.

2. The atomizer according to claim 1, characterized in that, when changing from the sealing state to the use state, the pulling part and the first sealing part both slide relative to the mounting hole to be spaced apart from the second sealing part along the sliding direction.

3. The atomizer according to claim 1, characterized in that, the seal is made of silica gel material.

4. The atomizer according to claim 1, characterized in that, the connection strength between the first sealing part and the pulling part is the first connection strength, the connection strength between the first sealing part and the second sealing part is the second connection strength, and the first connection strength is greater than the second connection strength.

5. The atomizer according to claim 4, characterized in that, the seal further includes a first connecting part and a second connecting part. The first sealing part includes an abutting part and a cooperating part that can cooperate with the mounting hole, which are connected to each other. The first connecting part is connected between the cooperating part and the pulling part, and the minimum cross-sectional dimension of the first connecting part is smaller than the cross-sectional dimensions of the cooperating part and the pulling part; the second connecting part is connected between the second sealing part and the abutting part, and the minimum thickness of the second connecting part is smaller than the thickness of the second sealing part, the thickness of the abutting part and the cross-sectional dimension of the first connecting part.

6. The atomizer according to claim 5, characterized in that, the first connecting part is located outside the inhalation channel.

7. The atomizer according to claim 5, characterized in that, the second connecting part is annular, and the second connecting part surrounds the abutting part in the circumferential direction.

8. The atomizer according to claim 5, characterized in that, The cross-sectional dimension of the abutting portion is greater than that of the mating portion; in the use state, the mating portion is fitted with the mounting hole, and the abutting portion is fixed on the mating portion and abutted outside the mounting hole.

9. The atomizer according to claim 1, wherein, the second sealing portion is sleeved on the atomization core, the second sealing portion has an inner surface in contact with the atomization core, and an air exchange groove is formed on the inner surface; in the use state, the air exchange groove communicates the liquid storage cavity and the outside.

10. The atomizer according to claim 1, wherein, the atomizer has an inner wall surface and a contact surface outside the atomization core, the second sealing portion abuts against the contact surface, the inner wall surface is directly connected to the contact surface and defines part of the boundary of the liquid storage cavity, and a liquid guiding groove is formed on the inner wall surface, and the end of the liquid guiding groove extends to the connection portion between the inner wall surface and the contact surface.

11. The atomizer according to claim 1, wherein, the atomization core includes a ceramic substrate and a heating element, the ceramic substrate has an atomization surface, and the heating element is attached to the atomization surface.

12. The atomizer according to claim 1, wherein, it further includes a housing and a base assembly that jointly enclose the liquid storage cavity, the mounting hole is formed on the base assembly, the atomization core is arranged in the base assembly, the housing includes an outer shell and an inner tube provided with the suction channel, the outer shell is sleeved on the base assembly, the inner tube is located inside the outer shell, one end of the inner tube is connected to the outer shell and the other end is inserted into the base assembly.

13. An electronic atomization device, wherein, it includes a power supply assembly and the atomizer according to any one of claims 1 to 12, and the power supply assembly is detachably connected to the atomizer.

14. A seal, wherein, it is made of silica gel material and includes a pulling portion, a first sealing portion and a second sealing portion, the second sealing portion is used for sleeving on the element to be sealed, the connection strength between the first sealing portion and the pulling portion is a first connection strength, the connection strength between the first sealing portion and the second sealing portion is a second connection strength, and the first connection strength is greater than the second connection strength.

15. The seal according to claim 14, wherein, the seal further includes a first connecting portion and a second connecting portion, the first sealing portion includes an abutting portion and a mating portion connected to each other, the first connecting portion is connected between the mating portion and the pulling portion, and the minimum cross-sectional dimension of the first connecting portion is smaller than the cross-sectional dimensions of the mating portion and the pulling portion; the second connecting portion is connected between the second sealing portion and the abutting portion, the first sealing portion, the second sealing portion and the second connecting portion jointly enclose an open cavity for accommodating a workpiece, and the minimum thickness of the second connecting portion is smaller than the thickness of the second sealing portion, the thickness of the abutting portion and the cross-sectional dimension of the first connecting portion.

16. The seal according to claim 15, wherein, The second connecting portion is annular, and the second connecting portion is disposed around the abutting portion in the circumferential direction.

17. The seal according to claim 15, wherein, a cross-sectional dimension of the abutting portion is larger than a cross-sectional dimension of the mating portion.

Images