An atomizing core assembly, an atomizer, and an aerosol generating device.

Abstract

This application belongs to the field of aerosol technology, and relates to an atomizing core assembly, an atomizer, and an aerosol generating device. The atomizing core assembly includes: a fixing member, a first sealing member, and an atomizing member. The fixing member has a guide cavity extending through its upper and lower ends. The outer wall of the fixing member extends away from the guide cavity to form a mounting cavity. The atomizing member is located in the mounting cavity. The first sealing member is clamped between the mounting cavity and the atomizing member. The liquid absorption surface of the atomizing member is in communication with the guide cavity. The fixing member has a ventilation channel communicating with the guide cavity. The outlet of the ventilation channel is located on the inner wall of the fixing member facing the liquid absorption surface. The end of the first sealing member near the guide cavity has a sealing plate. The sealing plate is located in the guide cavity and fits against the outlet of the ventilation channel, and the sealing plate is spaced apart from the liquid absorption surface. The fixing member has an air passage. By balancing the issues of air replenishment and liquid leakage prevention through the sealing plate and the ventilation channel, the requirements for dimensional accuracy are reduced, and the problem of core clogging of the atomizing member is avoided.

Description

Technical Field

[0001] This application relates to the field of aerosol technology, and more specifically, to an atomizing core assembly, an atomizer, and an aerosol generating device. Background Technology

[0002] An aerosol generator is an electronic product that produces aerosols for users to inhale. When in use, a power supply device supplies power to the atomizer, which heats up and atomizes the aerosol matrix to form an aerosol for users to inhale.

[0003] As the user inhales, the aerosol matrix in the atomizer's reservoir is continuously consumed, causing the reservoir to gradually become under negative pressure. This hinders the flow of the aerosol matrix, making it difficult for it to flow down and be absorbed by the atomizer's core. This slows down the efficiency of the aerosol matrix being transferred to the core. If the core continues to heat and atomize the aerosol matrix at this point, it can lead to a burnt core, reducing the user experience. Summary of the Invention

[0004] This application provides an atomizing core assembly, an atomizer, and an aerosol generating device to solve the problem in the prior art where the liquid storage tank is under negative pressure, making it difficult for the aerosol matrix to flow down and be adsorbed by the atomizing core, resulting in a clogging problem when the atomizing core heats and atomizes the aerosol matrix.

[0005] To address the aforementioned technical problems, this application provides an atomizing core assembly, which employs the following technical solution:

[0006] An atomizing core assembly includes: a fixing member, a first sealing member, and an atomizing member. The fixing member has a flow guiding cavity extending through its upper and lower ends. The outer wall of the fixing member extends away from the flow guiding cavity to form a mounting cavity. The atomizing member is located within the mounting cavity. The first sealing member is sandwiched between the mounting cavity and the atomizing member. The liquid absorption surface of the atomizing member is in communication with the flow guiding cavity. The fixing member has a ventilation channel communicating with the flow guiding cavity. The outlet of the ventilation channel is located on the inner wall of the fixing member facing the liquid absorption surface. The inlet of the ventilation channel is located on the side wall of the fixing member. The first sealing member has a sealing plate at one end near the flow guiding cavity. The sealing plate is located within the flow guiding cavity and fits against the outlet of the ventilation channel. The sealing plate is spaced apart from the liquid absorption surface. The fixing member also has an air passage spaced apart from the flow guiding cavity, the mounting cavity, and the ventilation channel. The air passage is in communication with the heating surface of the atomizing member.

[0007] Furthermore, the fixing member is provided with an air outlet protrusion located in the flow guide cavity and spaced apart from the atomizing element. The air outlet of the air exchange channel is located at the end of the air outlet protrusion near the atomizing element, and the sealing sheet is in contact with the air outlet protrusion.

[0008] Furthermore, the end of the air outlet protrusion near the sealing sheet is recessed away from the atomizing element to form an air storage cavity, and the air exchange channel connects the air storage cavity and the outside of the fixing element.

[0009] Furthermore, the first sealing member has a connecting boss at one end near the air outlet boss, and the sealing sheet is disposed on the connecting boss; and / or, the inner wall of the first sealing member away from the air outlet boss has a limiting groove, and the atomizing member is located in the limiting groove; and / or, the end of the atomizing member facing the air outlet boss is recessed inward to form a movable groove, and the sealing sheet is located above the movable groove.

[0010] Furthermore, a first groove is provided at the connection between the sealing sheet and the first sealing element, or the wall thickness of the sealing sheet is less than the wall thickness of the first sealing element.

[0011] Furthermore, the distance between the sealing sheet and the liquid-absorbing surface of the atomizing element is greater than 0.5 mm.

[0012] Furthermore, the fixing component includes a connector and a receiving component; the connector has a first vent hole extending through both the upper and lower ends in the middle, and the middle of the connector and the middle of the receiving component are spaced apart to form a second vent hole, the first vent hole and the second vent hole forming the venting channel; the two sides of the connector are connected to the two sides of the receiving component, the guide cavity is provided at the upper and lower ends of the connector and the receiving component and at the lower end of the middle of the receiving component, the outer wall of the lower end of the receiving component extends away from the connector to form the mounting cavity, the first sealing component, the sealing sheet and the atomizing component are located inside the receiving component, and the ventilation channel is provided on the receiving component.

[0013] To address the aforementioned technical problems, this application also provides an atomizer, which employs the following technical solution:

[0014] An atomizer includes: a housing, an air passage tube, an electrode component, and an atomizing core assembly as described above; the housing is provided with an inlet and an air outlet, the air passage tube is connected to the housing and communicates with the inlet, the housing is provided with a liquid storage chamber, the atomizing core assembly is disposed in the housing and seals the liquid storage chamber, the air passage tube is connected to the air passage, the air outlet communicates with the air exchange passage and the air passage of the atomizing core assembly, and the electrode component is electrically connected to the atomizing component.

[0015] Furthermore, the atomizer also includes a second sealing element, which is disposed inside the housing. The atomizing core assembly is sleeved in the second sealing element. The second sealing element has flow guide holes on both sides that communicate with the flow guide cavity. The second sealing element has a third air passage hole in the middle that communicates with the air passage. The air passage tube is connected to the third air passage hole.

[0016] To address the aforementioned technical problems, this application also provides an aerosol generating device, which employs the following technical solution:

[0017] An aerosol generating device includes a power supply device and an atomizer as described above, wherein the power supply device is electrically connected to the atomizer to supply power to the atomizer.

[0018] Compared with the prior art, the embodiments of this application have the following advantages: (1) The fixing part is provided with a gas exchange channel communicating with the guide cavity, and the gas outlet is located on the inner wall of the liquid absorption surface facing the fixing part, so that when the sealing sheet is attached to the gas outlet, the sealing sheet forms a one-way valve of the gas exchange channel. Above the sealing sheet is the air in the gas exchange channel, and below the sealing sheet is the aerosol matrix above the atomizing element. When the negative pressure in the liquid storage chamber gradually exceeds the threshold, the sealing sheet tilts towards the atomizing element. The deformation of the sealing sheet only needs to resist the pressure of the aerosol matrix above the atomizing element. The deformation of the sealing sheet is easy, so the gas replenishment efficiency is fast and obvious, and the gas pressure balance inside and outside the liquid storage chamber is quickly realized. This greatly avoids the problem of the atomizing element heating and atomizing the aerosol matrix when it is difficult for the aerosol matrix to flow down to be adsorbed by the atomizing element, which leads to the problem of the atomizing element heating and atomizing the aerosol matrix and causing the core to burn. (2) Since the sealing sheet is attached to the bottom of the air outlet, the size of the sealing sheet only needs to be no smaller than the size of the air outlet, and does not need to be exactly the same as the size of the air outlet. This reduces the dimensional accuracy requirements of the sealing sheet, thereby effectively reducing the difficulty of production and assembly. This application balances the problems of air replenishment and liquid leakage prevention through the sealing sheet and the air exchange channel, and reduces the dimensional accuracy requirements, which can effectively reduce the difficulty of production and avoid the problem of clogging of the atomizing element. Attached Figure Description

[0019] To more clearly illustrate the solution of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of an atomizing core assembly provided in an embodiment of this application;

[0021] Figure 2This is a schematic diagram from another perspective of the fixing member and the first sealing member in an atomizing core assembly provided in an embodiment of this application;

[0022] Figure 3 This is a cross-sectional view of an atomizing core assembly provided in an embodiment of this application;

[0023] Figure 4 yes Figure 3 Enlarged view of point A in the middle;

[0024] Figure 5 This is a schematic diagram of an atomizing core assembly provided in an embodiment of this application and a comparative example;

[0025] Figure 6 This is a schematic diagram of an atomizer provided in another embodiment of this application;

[0026] Figure 7 It is along Figure 6 The cross-sectional view shown in the Y direction;

[0027] Figure 8 It is along Figure 6 A cross-sectional view along the X direction as shown;

[0028] Figure 9 yes Figure 6 Exploded view.

[0029] Reference numerals: 1. Atomizing core assembly; 10. Fixing component; 11. Guide cavity; 12. Mounting cavity; 13. Air exchange channel; 131. Air outlet; 132. Air inlet; 14. Air passage; 50. Connecting component; 51. First air passage hole; 52. Second air passage hole; 60. Receiving component; 61. Liquid storage strip; 62. Buckle; 63. Second groove;

[0030] 20. First sealing element; 21. Sealing plate; 22. Connecting boss; 23. Limiting groove;

[0031] 30. Atomizing component; 31. Liquid suction surface; 32. Heating surface;

[0032] 40. Exhaust protrusion; 41. Air storage chamber;

[0033] 2. Shell; 201. Air intake; 202. Liquid storage tank; 203. Air inlet; 204. Upper shell; 205. Base;

[0034] 3. Air passage tube; 4. Second seal; 401. Guide hole; 402. Third air passage;

[0035] 6. Electrode components; 7. Support components; 701. Fastening groove; 8. Sealing ring. Detailed Implementation

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0037] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0038] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.

[0039] This application provides an atomizing core assembly 1, such as... Figures 1 to 4 As shown, the atomizing core assembly 1 includes: a fixing member 10, a first sealing member 20, and an atomizing member 30. The fixing member 10 has a guide cavity 11 extending through both its upper and lower ends. The outer wall of the fixing member 10 extends away from the guide cavity 11 to form a mounting cavity 12. The guide cavity 11 communicates with the mounting cavity 12. The atomizing member 30 is located within the mounting cavity 12. The first sealing member 20 is sandwiched between the mounting cavity 12 and the atomizing member 30. The liquid absorption surface 31 of the atomizing member 30 communicates with the guide cavity 11. The fixing member 10 has a ventilation channel 13 communicating with the guide cavity 11. The air outlet 1 of the ventilation channel 13... 31 is disposed on the inner wall of the liquid absorption surface 31 of the fixing member 10 facing the atomizing member 30. The air inlet 132 of the ventilation channel 13 is disposed on the side wall of the fixing member 10. The first sealing member 20 is provided with a sealing sheet 21 at one end near the flow guiding cavity 11. The sealing sheet 21 is located in the flow guiding cavity 11 and fits against the air outlet 131 of the ventilation channel 13. The sealing sheet 21 is spaced apart from the liquid absorption surface 31 of the atomizing member 30. The fixing member 10 is also provided with an air passage 14 spaced apart from the flow guiding cavity 11, the mounting cavity 12 and the ventilation channel 13. The air passage 14 communicates with the heating surface 32 of the atomizing member 30.

[0040] The working principle of the atomizing core assembly 1 provided in this application embodiment is as follows: (See also...) Figure 7 and Figure 8 The atomizing core assembly 1 is installed inside the housing 2 of the atomizer. The upper side wall of the fixing member 10 is tightly attached to the inner wall of the housing 2 to prevent the aerosol matrix in the liquid storage chamber 202 of the housing 2 from leaking out. The upper end of the air passage 14 of the fixing member 10 is connected to the air passage tube 3 inside the housing 2. Specifically, when the aerosol matrix and air are in a static state (i.e., when the user has not started inhaling), the pressure at various points is in a balanced state. There is a certain negative pressure in the liquid storage chamber 202 to ensure that the aerosol matrix will not leak due to gravity.

[0041] When the user begins to inhale, the aerosol matrix in the storage chamber 202 enters the mounting cavity 12 of the fixing member 10 through the guide cavity 11 and is adsorbed by the liquid absorption surface 31 of the atomizing element 30. As the user inhales, the atomizing element 30 is electrically heated, continuously consuming the aerosol matrix adsorbed by the atomizing element 30. The liquid level of the aerosol matrix in the storage chamber 202 gradually decreases, and the negative pressure in the storage chamber 202 gradually exceeds the threshold, causing the sealing plate 21 located in the guide cavity 11 to tilt towards the atomizing element 30. Figure 4 As shown, this opens the air outlet 131 of the ventilation channel 13, allowing outside air to enter the guide cavity 11 through the ventilation channel 13. This achieves pressure balance inside and outside the liquid storage chamber 202, facilitating the continued adsorption of the aerosol matrix by the atomizing element 30 and improving the efficiency of aerosol matrix transfer to the atomizing element 30. The other side of the atomizing element 30 opposite the liquid absorption surface 31 is the heating surface 32. The heating surface 32 atomizes the aerosol matrix particles in the atomizing element 30 into aerosols. The aerosols enter the air passage 3 through the air passage 14 penetrating the upper end and side wall of the fixing member 10. The aerosols flow to the outside through the air passage 3 for the user to inhale. When the user stops inhaling, the negative pressure in the liquid storage chamber 202 is maintained within the threshold, causing the sealing sheet 21 to re-adhere tightly to the air outlet 131, preventing the aerosol matrix from leaking out through the ventilation channel 13.

[0042] The beneficial effects of the atomizing core assembly 1 provided in this application embodiment are as follows:

[0043] (1) A ventilation channel 13 communicating with the guide cavity 11 is provided on the fixing member 10, and the air outlet 131 is located on the inner wall of the liquid absorption surface 31 of the fixing member 10 facing the atomizing element 30. When the sealing sheet 21 is attached to the air outlet 131, the sealing sheet 21 forms a one-way valve of the ventilation channel 13. The air in the ventilation channel 13 is above the sealing sheet 21, and the aerosol matrix above the atomizing element 30 is below the sealing sheet 21. When the negative pressure in the liquid storage chamber 202 gradually exceeds the threshold, the sealing sheet 21 tilts towards the atomizing element 30. The deformation of the sealing sheet 21 only needs to resist the pressure of the aerosol matrix above the atomizing element 30. The deformation of the sealing sheet 21 is easy, which makes the gas replenishment efficiency fast and obvious. The pressure balance inside and outside the liquid storage chamber 202 is quickly achieved, which greatly avoids the problem of the atomizing element 30 heating and atomizing the aerosol matrix and causing the core to burn when the atomizing element 30 heats and atomizes the aerosol matrix.

[0044] (2) Since the sealing sheet 21 is attached to the lower part of the air outlet 131, the size of the sealing sheet 21 only needs to be no smaller than the size of the air outlet 131, and does not need to be exactly the same as the size of the air outlet 131. This reduces the size accuracy requirement of the sealing sheet 21, thereby effectively reducing the difficulty of production and assembly.

[0045] This application balances the issues of air replenishment and liquid leakage prevention through the sealing sheet 21 and the ventilation channel 13, and reduces the requirements for dimensional accuracy, which can effectively reduce the difficulty of production and avoid the problem of clogging of the atomizing element 30.

[0046] Furthermore, see Figure 5 In the first comparative example, the ventilation channel 13' is located between the atomizing element 30' and the first sealing element 20', and the sealing plate 21' is located above the atomizing element 30' to fit the air outlet 131' of the ventilation channel 13'. The sealing plate 21' forms a one-way valve for the ventilation channel 13', which can be opened upwards; or, the ventilation channel 13' is located between the fixing element 10' and another sealing element b sleeved on the outer periphery of the fixing element 10', and the sealing plate 21' is located above the fixing element 10' to fit the air outlet 131' of the ventilation channel 13'. The sealing plate 21' forms a one-way valve for the ventilation channel 13', which can be opened upwards. However, when the ventilation channel 13' is too large, the sealing plate 21' may not fit the air outlet 131' in time, causing the aerosol matrix to flow into the atomizer through the channel and resulting in oil leakage. When the ventilation channel 13' is too small, the sealing plate 21' may not be able to open the air outlet 131' due to insufficient airflow within the ventilation channel 13', making it unable to withstand the pressure of the aerosol matrix on it. This prevents the timely achievement of air pressure balance inside and outside the liquid storage chamber 202, leading to wicking of the atomizing element 30'. Therefore, in order to achieve air pressure balance, the length of the ventilation channel 13' and the thickness and hardness of the sealing plate 21' in Comparative Example 1 need to be repeatedly tested and adjusted, thus increasing the workload.

[0047] Next, see Figure 5 In the second comparative example, the ventilation channel 13" is located between the fixing member 10" and the first sealing member 20", but no sealing plate is installed at the air outlet 131", which results in both the air inlet 132" and the air outlet 131" being open. Although the air replenishment effect of Comparative Example 2 is obvious, the risk of oil leakage is high.

[0048] Finally, see Figure 5 In the embodiments of this application, the sealing sheet 21 covers the air outlet 131 to form a one-way valve. When the sealing sheet 21 is attached to the air outlet 131, since the air outlet 131 and the guide cavity 11 are not connected, the aerosol matrix is ​​still below the sealing sheet 21, making it difficult for the aerosol matrix to enter the ventilation channel 13, greatly reducing the risk of oil leakage. Moreover, the sealing sheet 21 is easy to deform, and the effect of air entering the liquid storage tank 202 through the ventilation channel 13 for gas replenishment is fast and obvious. This makes the requirements for the length and size of the ventilation channel 13 low, saving a lot of time for product testing. The simple structure reduces the unit price of the product, making the product more competitive in the market. The reduction in the risk of oil leakage also optimizes the customer experience.

[0049] Furthermore, such as Figure 2 As shown, the air inlet 132 of the ventilation channel 13 is located at the bottom end of the fixing member 10; it is set near the air inlet 203 of the atomizer so that air can quickly enter the ventilation channel 13 when the user inhales.

[0050] Preferably, the first sealing element 20 is a frame that extends through both the upper and lower ends; this structure is simple and easy to manufacture, and allows the liquid absorption surface 31 of the atomizing element 30 to communicate with the guide cavity 11, thereby realizing the adsorption of the aerosol matrix.

[0051] Furthermore, the atomizing element 30 includes a porous body (not shown) and a heating element (not shown). The porous body is at least partially housed within the first sealing element 20. The heating element is disposed on the side of the porous body away from the flow guiding cavity 11. The side of the porous body facing the flow guiding cavity 11 is the liquid absorption surface 31, and the side of the porous body with the heating element is the heating surface 32. Alternatively, the end face of the porous body near the heating element (in which case the heating element is embedded inside the porous body) is the heating surface 32.

[0052] Specifically, the porous body is porous ceramic, porous glass ceramic, or porous glass, etc.

[0053] Specifically, the heating element is a heating wire, a heating mesh, or a heating film, etc.

[0054] Furthermore, such as Figures 2 to 4As shown, the fixing member 10 is provided with an air outlet protrusion 40 located within the flow guiding cavity 11 and spaced apart from the atomizing element 30. The air outlet 131 of the ventilation channel 13 is located at the end of the air outlet protrusion 40 adjacent to the atomizing element 30, and the sealing sheet 21 is in contact with the air outlet protrusion 40. This avoids the fixing member 10 from having an excessively thick wall at the flow guiding cavity 11 due to the opening of the ventilation channel 13. This increases the communication area between the flow guiding cavity 11 and the atomizing element 30, allowing the liquid absorption surface 31 of the atomizing element 30 to adsorb more aerosol matrix, further improving the efficiency of aerosol matrix transfer to the atomizing element 30 and preventing the atomizing element 30 from clogging.

[0055] Furthermore, such as Figure 3 and Figure 4 As shown, the end of the air outlet protrusion 40 near the sealing sheet 21 is recessed away from the atomizing element 30 to form an air storage cavity 41. The ventilation channel 13 connects the air storage cavity 41 and the outside of the fixing member 10. The air storage cavity 41 can store more air. The heating operation of the atomizing element 30 can heat the air in the air storage cavity 41, thereby increasing the air pressure in the air storage cavity 41. This facilitates the rapid formation of the pressure difference required for air replenishment when replenishing the liquid storage tank 202, thus achieving rapid air replenishment.

[0056] Furthermore, such as Figures 2 to 4 As shown, the first sealing member 20 has a connecting boss 22 at one end near the air outlet boss 40, and the sealing sheet 21 is disposed on the connecting boss 22; and / or, the inner wall of the first sealing member 20 away from the air outlet boss 40 has a limiting groove 23, and the atomizing member 30 is located in the limiting groove 23; and / or, the end of the atomizing member 30 facing the air outlet boss 40 is recessed inward to form a movable groove (not shown), and the sealing sheet 21 is located above the movable groove. All three methods can allow the sealing sheet 21 and the liquid absorption surface 31 of the atomizing member 30 to be spaced apart. One or more of the above three methods can be used to ensure the deformation space of the sealing sheet 21.

[0057] Preferably, the distance between the sealing sheet 21 and the liquid absorption surface 31 of the atomizing element 30 is greater than 0.5 mm.

[0058] Furthermore, a first groove (not shown) is provided at the connection between the sealing sheet 21 and the first sealing member 20, or the wall thickness of the sealing sheet 21 is less than the wall thickness of the first sealing member 20. This allows the sealing sheet 21 to tilt towards the atomizing member 30, thereby improving the air replenishment efficiency.

[0059] Specifically, the wall thickness of the sealing sheet 21 can be set differently to correspond to the air pressure of different air replenishment designs, and this application does not impose any restrictions on it.

[0060] Furthermore, such as Figure 2 As shown, the ventilation channel 13 is formed on the inner wall of the fixing member 10, and the ventilation channel 13 connects the flow guiding cavity 11 and the outside of the fixing member 10. The ventilation channel 13 is equivalent to a groove provided on the inner wall of the fixing member 10. When the first sealing member 20 is sleeved in the mounting cavity 12 of the fixing member 10, the first sealing member 20 seals the part of the mounting cavity 12 except for the ventilation channel 13, and the sealing plate 21 seals the part of the ventilation channel 13 located in the flow guiding cavity 11. The fixing member 10, the first sealing member 20 and the sealing plate 21 together form the ventilation channel 13. It is not necessary to drill the ventilation channel 13 in the fixing member 10 after it is manufactured, which facilitates the production of the ventilation channel 13.

[0061] Alternatively, the ventilation channel 13 may be formed within the wall of the fixing member 10.

[0062] Furthermore, such as Figures 1 to 3 As shown, the fixing member 10 includes a connecting member 50 and a receiving member 60; the connecting member 50 has a first air passage 51 through both the upper and lower ends in the middle, and the middle of the connecting member 50 and the middle of the receiving member 60 are spaced apart to form a second air passage 52, the first air passage 51 and the second air passage 52 form the air passage channel 14; the two sides of the connecting member 50 are connected to the two sides of the receiving member 60, the guide cavity 11 is provided at the upper and lower ends of the connecting member 50 and the receiving member 60 and at the lower end of the middle of the receiving member 60, the outer wall of the lower end of the receiving member 60 extends away from the connecting member 50 to form the mounting cavity 12, the first sealing member 20, the sealing sheet 21 and the atomizing member 30 are located in the receiving member 60, and the ventilation channel 13 is provided on the receiving member 60. The flow guide cavity 11 has a Y-shaped cross-section in the vertical direction, allowing the aerosol matrix in the liquid storage tank 202 to flow from both sides of the connector 50 and the accommodating member 60 into the atomizing member 30 located in the accommodating member 60; while the aerosol formed by the atomizing member 30 atomizing the aerosol matrix flows to the air passage tube 3 of the atomizer through the air passage 14 composed of the first air passage 51 and the second air passage 52; the connector 50 and the accommodating member 60 have ingenious structures and are integrally molded in production, which helps to reduce the production molds.

[0063] Furthermore, the venting boss 40 is also provided in the receiving member 60, so that during the production process, the venting boss 40, the connecting member 50, and the receiving member 60 can be integrally formed.

[0064] Furthermore, such as Figure 2 and Figure 3 As shown, the surface of the middle part of the accommodating member 60 is provided with a second groove 63, so that the aerosol can enter the second air passage 52 through the second groove 63, and then enter the air passage tube 3 of the atomizer through the first air passage 51.

[0065] Furthermore, such as Figures 1 to 3 As shown, the side wall of the accommodating member 60 is provided with a plurality of spaced liquid storage strips 61, which form a liquid storage structure with capillary action. The liquid storage structure is connected to the air passage 14. It is used to store the condensate flowing down from the air passage tube 3 in the atomizer through the air passage 14, so as to prevent the condensate from being sucked into the user's mouth.

[0066] This application also provides an atomizer, such as... Figures 6 to 9 As shown, the atomizer includes: a housing 2, an air passage tube 3, an electrode 6, and an atomizing core assembly 1 as described above; the housing 2 is provided with an air inlet 201 and an air outlet 203, the air passage tube 3 is connected to the housing 2 and communicates with the air inlet 201, the housing 2 is provided with a liquid storage chamber 202, the atomizing core assembly 1 is disposed in the housing 2 and seals the liquid storage chamber 202, the air passage tube 3 is connected to the air passage 14, the air outlet 203 communicates with the air exchange passage 13 and the air passage 14 of the atomizing core assembly 1, and the electrode 6 is electrically connected to the atomizing element 30.

[0067] Furthermore, the air intake 201 and the air inlet 203 are respectively located at both ends of the housing 2; or, the air inlet 203 is located on the side wall of the housing 2.

[0068] The working principle of the atomizer provided in this application embodiment is as follows: the atomizing core assembly 1 is installed inside the housing 2, and the side wall of the upper end of the fixing member 10 is tightly attached to the inner wall of the housing 2 to prevent the aerosol matrix in the liquid storage chamber 202 of the housing 2 from leaking out. The upper end of the air passage 14 of the fixing member 10 is connected to the air passage tube 3 inside the housing 2. When using the atomizer, the electrode 6 is electrically connected to the power supply device, and the power supply device supplies power to the atomizing component 30 to atomize the aerosol matrix and generate aerosol. Specifically, when the atomizer is stationary (i.e., when the user has not started inhaling), the aerosol matrix and the air are in a static state, the pressure at various points is in a balanced state, and there is a certain negative pressure in the liquid storage chamber 202 to ensure that the aerosol matrix will not leak due to gravity.

[0069] When the user begins to inhale, the aerosol matrix in the storage chamber 202 enters the mounting cavity 12 of the fixing member 10 through the guide hole 401 and the guide cavity 11, and is adsorbed by the liquid absorption surface 31 of the atomizing element 30. As the user inhales, the atomizing element 30 is electrically heated, continuously consuming the aerosol matrix adsorbed by the atomizing element 30. The liquid level of the aerosol matrix in the storage chamber 202 gradually decreases, and the negative pressure in the storage chamber 202 gradually exceeds the threshold, causing the sealing plate 21 located in the guide cavity 11 to tilt towards the atomizing element 30, thereby causing... The outlet 131 of the ventilation channel 13 is opened, allowing outside air to enter the guide cavity 11 through the inlet 203 and the ventilation channel 13. This achieves pressure balance inside and outside the liquid storage chamber 202, facilitating the continued adsorption of the aerosol matrix by the atomizing element 30 and improving the efficiency of aerosol matrix transfer to the atomizing element 30. The other side of the atomizing element 30 opposite the liquid absorption surface 31 is the heating surface 32. The heating surface 32 atomizes the aerosol matrix particles in the atomizing element 30 into aerosols, such as... Figure 7 and Figure 8 As indicated by the arrow with a straight line, the aerosol enters the airway tube 3 through the first air passage 51 and the second air passage 52. The aerosol flows to the outside through the airway tube 3 and the air inlet 201 for the user to inhale. When the user stops inhaling, the negative pressure in the liquid storage tank 202 is maintained within the threshold, so that the sealing sheet 21 is tightly re-attached to the air outlet 131 to prevent the aerosol matrix from leaking out through the ventilation channel 13.

[0070] The beneficial effects of the atomizer provided in this application embodiment are as follows: (1) A ventilation channel 13 communicating with the guide cavity 11 is provided on the fixing member 10, and the air outlet 131 is located on the inner wall of the liquid absorption surface 31 of the fixing member 10 facing the atomizing member 30, so that when the sealing sheet 21 is attached to the air outlet 131, the sealing sheet 21 forms a one-way valve of the ventilation channel 13. The air above the sealing sheet 21 is located in the ventilation channel 13, and the aerosol matrix below the sealing sheet 21 is located above the atomizing member 30. When the liquid is stored When the negative pressure inside the chamber 202 gradually exceeds the threshold, the sealing sheet 21 tilts towards the atomizing element 30. The deformation of the sealing sheet 21 only needs to resist the pressure of the aerosol matrix above the atomizing element 30. The deformation of the sealing sheet 21 is easy, which makes the gas replenishment efficiency fast and obvious. It quickly achieves the gas pressure balance inside and outside the liquid storage chamber 202, which greatly avoids the problem of the atomizing element 30 heating and atomizing the aerosol matrix and causing the core to burn when the atomizing element 30 heats and atomizes the aerosol matrix, which is difficult for the aerosol matrix to flow down and be adsorbed by the atomizing element 30.

[0071] (2) Since the sealing sheet 21 is attached to the lower part of the air outlet 131, the size of the sealing sheet 21 only needs to be no smaller than the size of the air outlet 131, and does not need to be exactly the same as the size of the air outlet 131. This reduces the size accuracy requirement of the sealing sheet 21, thereby effectively reducing the difficulty of production and assembly.

[0072] This application balances the issues of air replenishment and liquid leakage prevention through the sealing sheet 21 and the ventilation channel 13, and reduces the requirements for dimensional accuracy, which can effectively reduce the difficulty of production and avoid the problem of clogging of the atomizing element 30.

[0073] Furthermore, the number of electrode elements 6 is two or three; when the number of electrode elements 6 is two, one is a positive electrode and the other is a negative electrode; when the number of electrode elements 6 is three, two are positive electrodes and the other is a negative electrode, or two are negative electrodes and the other is a positive electrode. In this way, two sets of parallel heating elements can be set, or an additional temperature sensing element can be set.

[0074] Furthermore, the airway tube 3 is threadedly connected to the air intake port 201 or connected by a snap-fit ​​62, etc.

[0075] Preferably, the shell 2 and the airway tube 3 are integrally formed. The shell 2 is a hollow structure with one end open. The end of the shell 2 away from the opening is recessed inward to form an air intake 201 and an airway tube 3. The cavity inside the shell 2 forms a liquid storage chamber 202 arranged around the outer periphery of the airway tube 3. The user injects aerosol matrix into the liquid storage chamber 202 through the opening.

[0076] Furthermore, such as Figures 6 to 9 As shown, the atomizer also includes a second sealing element 4, which is disposed inside the housing 2. The atomizing core assembly 1 is sleeved in the second sealing element 4. The second sealing element 4 has flow guide holes 401 on both sides that communicate with the flow guide cavity 11, and a third air passage hole 402 in the middle of the second sealing element 4 that communicates with the air passage 14. The air passage tube 3 is connected to the third air passage hole 402. The sidewall of the second seal 4 is tightly fitted to the opening to seal the liquid storage chamber 202. The aerosol matrix in the liquid storage chamber 202 enters the guide cavity 11 in the atomizing core assembly 1 through the guide hole 401. The air passage tube 3 is connected to the first air passage hole 51 of the air passage channel 14 through the third air passage hole 402. The air inlet 203, the second groove 63, the air passage channel 14, the third air passage hole 402, the air passage tube 3, and the air inlet 201 form an aerosol flow channel. The air inlet 203, the air inlet 132 of the air exchange channel 13, and the air outlet 131 form a pressure balance channel. This allows the liquid storage chamber 202 to be replenished with air when inhaled.

[0077] Furthermore, the housing 2 includes an upper shell 204 and a base 205. The second sealing member 4 and the atomizing core assembly 1 are located inside the upper shell 204. The air inlet 201, the air passage tube 3, and the liquid storage tank 202 are located in the upper shell 204. The base 205 is connected to the upper shell 204 and engages with the fixing member 10 of the atomizing core assembly 1. The air inlet 203 is opened in the base 205 to facilitate the installation of the atomizing core assembly 1.

[0078] Alternatively, an opening is provided on the side wall of the housing 2, and a sealing plate is provided at the opening. The second sealing member 4 and the atomizing core assembly are inserted into the housing 2 through the opening, and then the opening is sealed by the sealing plate.

[0079] Furthermore, such as Figure 8 and Figure 9 As shown, the base 205 is provided with support members 7 on both sides, and the support members 7 are provided with a buckle groove 701. The outer wall of the receiving member 60 of the fixing member 10 is provided with a buckle 62. The buckle 62 is engaged with the buckle groove 701, so that the base 205 supports and fixes the atomizing core assembly 1; and the base 205 and the heating surface 32 of the atomizing member 30 are spaced apart to form an atomizing chamber.

[0080] Furthermore, such as Figure 7 and Figure 8 As shown, a sealing ring 8 is fitted on the base 205, and the sealing ring 8 abuts against the inner wall of the upper shell 204; the sealing ring 8 increases the friction between the upper shell 204 and the base 205.

[0081] In this embodiment, the assembly process of the atomizer is as follows: First, assemble the atomizing core assembly 1, insert the atomizing element 30 into the first sealing element 20, then rotate the first sealing element 20 containing the atomizing element 30 into the fixing element 10, and make the sealing sheet 21 fit with the air outlet 131 of the ventilation channel 13; next, insert the electrode 6 into the base 205, and then put the sealing ring 8 onto the base 205; then, install the assembled atomizing core assembly 1 onto the base 205, so that the buckle 62 engages with the buckle groove 701, and make the electrode 6 electrically connected to the heating element of the atomizing element 30. Next, the second sealing element 4 is fitted onto the connector 50 of the fixing element 10, and the guide hole 401 is aligned with the guide cavity 11, and the third air passage 402 is aligned with the first air passage 51. Next, the upper shell 204 is inverted, and then the aerosol matrix is ​​injected into the liquid storage tank 202. Finally, the assembled atomizing core assembly 1, the second sealing element 4, the base 205, the sealing ring 8, and the electrode 6 are inserted into the upper shell 204, so that the air passage tube 3 is connected to the third air passage 402, the second sealing element 4 seals the liquid storage tank 202, and the base 205 seals the upper shell 204.

[0082] This application embodiment also provides an aerosol generating device, which includes a power supply device and an atomizer as described above. The power supply device is electrically connected to the atomizer to supply power to the atomizer.

[0083] Obviously, the embodiments described above are only some embodiments of this application, not all embodiments. The accompanying drawings show preferred embodiments of this application, but do not limit the patent scope of this application. This application can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this application's specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the scope of patent protection of this application.

Claims

1. An atomizing core assembly, characterized in that, include: The device comprises a fixing component, a first sealing component, and an atomizing component. The fixing component has a flow guiding cavity extending through both its upper and lower ends. The outer wall of the fixing component extends away from the flow guiding cavity to form a mounting cavity. The atomizing component is located in the mounting cavity. The first sealing component is sandwiched between the mounting cavity and the atomizing component. The liquid absorption surface of the atomizing component is in communication with the flow guiding cavity. The fixing member has a ventilation channel communicating with the flow guiding cavity. The air outlet of the ventilation channel is located on the inner wall of the fixing member facing the liquid absorption surface, and the air inlet of the ventilation channel is located on the side wall of the fixing member. The first sealing member has a sealing sheet at one end near the flow guiding cavity. The sealing sheet is located in the flow guiding cavity and fits against the air outlet of the ventilation channel, and the sealing sheet is spaced apart from the liquid absorption surface. When the negative pressure in the liquid storage chamber gradually exceeds the threshold, the sealing sheet tilts towards the atomizing element. The fixing component is also provided with an air passage spaced apart from the flow guide cavity, the mounting cavity and the air exchange channel, and the air passage is connected to the heating surface of the atomizing component; The fixing member is provided with an air outlet protrusion located in the flow guide cavity and spaced apart from the atomizing element. The air outlet of the air exchange channel is located at the end of the air outlet protrusion near the atomizing element, and the sealing sheet is in contact with the air outlet protrusion.

2. The atomizing core assembly according to claim 1, characterized in that, The end of the air outlet protrusion near the sealing sheet is recessed away from the atomizing element to form an air storage cavity, and the air exchange channel connects the air storage cavity and the outside of the fixing element.

3. The atomizing core assembly according to claim 1, characterized in that, The first sealing element has a connecting boss at one end near the venting boss, and the sealing sheet is disposed on the connecting boss; And / or, the inner wall of the first sealing member away from the venting boss is provided with a limiting groove, and the atomizing member is located in the limiting groove; And / or, the end of the atomizing element facing the air outlet protrusion is recessed inward to form a movable groove, and the sealing sheet is located above the movable groove.

4. The atomizing core assembly according to claim 1, characterized in that, The sealing sheet has a first groove at the connection with the first sealing element, or the wall thickness of the sealing sheet is less than the wall thickness of the first sealing element.

5. The atomizing core assembly according to claim 1, characterized in that, The distance between the sealing sheet and the liquid-absorbing surface of the atomizing element is greater than 0.5 mm.

6. The atomizing core assembly according to claim 1, characterized in that, The fastener includes a connector and a receiving component; the connector has a first vent hole that passes through both the upper and lower ends in the middle, and the middle of the connector and the middle of the receiving component are spaced apart to form a second vent hole, and the first vent hole and the second vent hole form the venting channel. The two sides of the connector are connected to the two sides of the receiving member. The flow guiding cavity is located at the upper and lower ends of the connector and the receiving member and the lower end of the middle part of the receiving member. The outer wall of the lower end of the receiving member extends away from the connector to form the mounting cavity. The first sealing member, the sealing sheet and the atomizing member are located inside the receiving member. The ventilation channel is located on the receiving member.

7. An atomizer, characterized in that, include: The device comprises a housing, an air duct, electrodes, and an atomizing core assembly as described in any one of claims 1 to 6; the housing is provided with an air inlet and an air outlet, the air duct is connected to the housing and communicates with the air inlet, the housing is provided with a liquid storage chamber, the atomizing core assembly is disposed in the housing and the liquid storage chamber is sealed, the air duct is connected to the air passage, the air outlet communicates with the air exchange passage and the air passage of the atomizing core assembly, and the electrodes are electrically connected to the atomizing element.

8. The atomizer according to claim 7, characterized in that, The atomizer also includes a second sealing element, which is disposed inside the housing. The atomizing core assembly is sleeved in the second sealing element. The second sealing element has flow guide holes on both sides that communicate with the flow guide cavity. The second sealing element has a third air passage hole in the middle that communicates with the air passage. The air passage tube is connected to the third air passage hole.

9. An aerosol generating device, characterized in that, It includes a power supply device and an atomizer as described in any one of claims 7 to 8, wherein the power supply device is electrically connected to the atomizer to supply power to the atomizer.

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