Cigarette cartridge structure for electronic cigarette and electronic cigarette

Abstract

The present application relates to an electronic cigarette cartridge structure and an electronic cigarette, the cartridge structure comprising a shell, a lower cover and an atomizing core assembly arranged in the shell, an air outlet channel is formed on the shell, and a liquid storage chamber is provided in the shell; the lower cover is arranged on the shell, and at least one first air inlet is formed at the bottom of the lower cover; the atomizing core assembly is located between the lower cover and the liquid storage chamber, the side wall of the atomizing core assembly forms a sealing fit with the inner wall of the shell, a through hole is provided on the atomizing core assembly, and the upper end face of the atomizing core assembly is connected with the liquid storage chamber; the atomizing core assembly has a central axis extending from its upper end face to its lower end face, and relative to the central axis, the first air inlet is opened in a radial direction tending to the atomizing core assembly, and a curved air path is formed between the first air inlet and the through hole; the air outlet channel is connected with the first air inlet through the through hole.

Description

Technical Field

[0001] The present application relates to the technical field of electronic cigarettes, and more specifically, to a cartridge structure for electronic cigarettes and an electronic cigarette. Background Art

[0002] In recent years, with the gradual improvement of people's living standards, people's attention to health has generally increased, and more and more people have begun to realize the harm of tobacco to the body. Compared with traditional cigarettes, the number of users of electronic cigarettes has increased dramatically. Electronic cigarettes are electronic products that imitate cigarettes and can produce smoke similar to cigarettes. Electronic cigarette products usually produce smoke by atomizing the oil. Compared with traditional cigarettes, the advantage of electronic cigarettes is that they have reduced health hazards to users, and most electronic cigarettes are easy to use and carry, and do not require ignition.

[0003] In the prior art, the smoke produced by electronic cigarettes is not as uniform as the smoke produced by burning traditional cigarettes. When users use electronic cigarettes, the smoke content in the inhaled air may be too high or too low, which will seriously affect the use experience of electronic cigarettes. In addition, when the electronic cigarette oil is atomized, it is difficult to evenly disperse the suspended aerosol into the air, which further makes it difficult to form uniform smoke.

[0004] In view of this, it is necessary to propose a new technical solution to improve the internal structure of the electronic cigarette and optimize the electronic cigarette products. Summary of the invention

[0005] One object of the present application is to provide a cartridge structure for an electronic cigarette and an electronic cigarette.

[0006] According to a first aspect of the present application, a cartridge structure for an electronic cigarette is provided, comprising:

[0007] A shell body, wherein an air outlet passage is formed on the shell body, and a liquid storage cavity is formed in the shell body;

[0008] A lower cover, the lower cover is disposed on the housing, and at least one first air inlet is formed at the bottom of the lower cover;

[0009] An atomizer core assembly is arranged in the shell, the atomizer core assembly is located between the lower cover and the liquid storage chamber, the side wall of the atomizer core assembly forms a sealing fit with the inner wall of the shell, a through hole is opened on the atomizer core assembly, and the upper end surface of the atomizer core assembly is connected to the liquid storage chamber;

[0010] The atomizer core assembly has a central axis extending from its upper end surface to its lower end surface. Relative to the central axis, the first air inlet is opened along a radial direction tending to the atomizer core assembly, and a curved air path is formed between the first air inlet and the through hole.

[0011] The air outlet channel is communicated with the first air inlet through the through hole.

[0012] Optionally, the curved air path is configured to enable the air entering the housing from the first air inlet to flow to the through hole in a deflected and / or rotating manner.

[0013] Optionally, the atomizer core assembly includes a porous body and a heating element, the porous body has a liquid absorption surface and an atomization surface, the liquid absorption surface serves as the upper end surface of the atomizer core assembly, the atomization surface serves as the lower end surface of the atomizer core assembly, the heating element is arranged on the atomization surface, the liquid absorption surface is connected to the liquid storage cavity, and an atomization cavity is formed between the atomization surface and the lower cover;

[0014] The air enters the atomizing chamber through the first air inlet toward the side wall of the lower cover, and flows toward the air outlet channel through the through hole.

[0015] Optionally, the curved air path allows air to flow into the housing laterally and deflect upwardly, and the air is blocked after flowing upward to the atomizer core assembly and disperses downward, and then flows into the through hole through the suction effect at the through hole.

[0016] Optionally, the air is dispersed downwards and then rotated in the housing and mixed with existing air and / or smoke.

[0017] Optionally, relative to the central axis, the through hole is located at a position offset to a first side of the central axis.

[0018] Optionally, the heating element is located at a position offset to a second side of the central axis.

[0019] Optionally, the curved air path has a main air intake side and a secondary air intake side, the first air intake port is located on the main air intake side, and the air intake amount of the main air intake side is greater than the air intake amount of the secondary air intake side.

[0020] Optionally, on the main air inlet side, two first air inlets are provided on the lower cover.

[0021] Optionally, the through hole is located at a position offset toward the auxiliary air intake side.

[0022] Optionally, at least one second air inlet is formed on the lower cover, and the second air inlet is located on the auxiliary air inlet side.

[0023] Optionally, the opening aperture of the second air inlet is smaller than the opening aperture of the first air inlet.

[0024] Optionally, the number of the first air inlets is greater than or equal to the number of the second air inlets.

[0025] Optionally, the total opening area of ​​each of the second air inlets is smaller than the total opening area of ​​each of the first air inlets.

[0026] Optionally, on the secondary air intake side, two second air intake ports are distributed around the central axis.

[0027] Optionally, the first air inlet and the second air inlet are centrally symmetrically distributed relative to the central axis.

[0028] Optionally, the opening direction of the first air inlet is perpendicular to the central axis of the atomizer core assembly.

[0029] Optionally, an air intake duct protruding into the shell is formed at the bottom of the lower cover, the air intake duct has a duct side wall and a top plate, and at least a part of the structure of the first air inlet is opened on the duct side wall.

[0030] Optionally, the porous body is provided with a ventilation channel, and the ventilation channel runs from the atomization surface to the liquid absorption surface.

[0031] Optionally, the ventilation channel is a ventilation through hole opened on the porous body, and the ventilation through hole and the through hole are arranged at intervals on the porous body.

[0032] Optionally, the atomizer core assembly includes an atomizer core seal, which is sleeved on the outside of the porous body; the atomizer core seal is configured to form a mutually extruded sealing fit with the inner wall of the shell of the electronic cigarette.

[0033] Optionally, a ventilation groove is formed on the side circumference of the porous body, and the atomizer core seal cooperates with the ventilation groove to form the ventilation channel.

[0034] Optionally, there are 2 or more ventilation slots.

[0035] Optionally, the two or more ventilation grooves are distributed at intervals on the side circumference of the porous body.

[0036] Optionally, there are two ventilation grooves, and the two ventilation grooves are symmetrically arranged on both sides of the porous body.

[0037] According to another aspect of the present application, an electronic cigarette is also provided, comprising:

[0038] In the above-mentioned cigarette cartridge structure, the atomizer core assembly includes a heating element, and the heating element is located at the lower end surface of the atomizer core assembly;

[0039] A cigarette rod structure, wherein the cigarette rod structure has an electrical component, the cigarette rod structure is connected to the cigarette cartridge structure, and the electrical component is configured to form an electrical connection with the heating element.

[0040] One technical effect of the present application is that the curved air path can increase the flow path of air in the housing, thereby improving the uniformity of mixing of air and smoke.

[0041] Other features and advantages of the present application will become apparent from the following detailed description of exemplary embodiments of the present application with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] The accompanying drawings, which constitute a part of the specification, illustrate embodiments of the present application and, together with the description, serve to explain the principles of the present application.

[0043] Figure 1 is a schematic diagram of a cigarette cartridge structure according to an embodiment of the present disclosure;

[0044] Figure 2 is a schematic structural diagram of a porous body in a cigarette cartridge structure according to an embodiment of the present disclosure;

[0045] Figure 3 It is a partial structural schematic diagram of a cigarette cartridge structure according to an embodiment of the present disclosure;

[0046] Figure 4 This is a schematic diagram of the structure of the lower cover in one embodiment of the present disclosure. Figure 1 ;

[0047] Figure 5 This is a schematic diagram of the structure of the lower cover in one embodiment of the present disclosure. Figure 2 ;

[0048] Figure 6 This is a schematic diagram of the structure of the lower cover in one embodiment of the present disclosure. Figure 3 ;

[0049] Figure 7 is a schematic diagram of the exploded structure of an electronic cigarette in one embodiment of the present disclosure;

[0050] Figure 8 It is a schematic diagram of the three-dimensional structure of the porous body of the cigarette cartridge structure in one embodiment of the present disclosure.

[0051] Description of reference numerals:

[0052] 1-shell, 101-liquid storage chamber, 102-atomization chamber, 11-air outlet channel, 2-lower cover, 21-air inlet channel, 211-first air inlet, 212-auxiliary notch, 213-pipe side wall, 214-top plate, 215-second air inlet, 31-porous body, 301-ventilation groove, 32-heating element, 4-atomization core seal, 5-conductive nail, 6-oil absorption element, 7-lower cover seal, c-center axis. DETAILED DESCRIPTION

[0053] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present application.

[0054] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present application, its application, or uses.

[0055] Techniques and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the techniques and equipment should be considered part of the specification.

[0056] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0057] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0058] This solution provides a cartridge structure for an electronic cigarette. A curved air path is formed in the cartridge structure, and the curved air path is used to extend the flow path of the airflow in the housing 1, so that the airflow deflects and flows in the housing 1, thereby improving the uniformity of the mixing of air and smoke.

[0059] refer to Figure 1-Figure 6 As shown, the cigarette cartridge structure includes a shell 1, a lower cover 2 and an atomizing core assembly.

[0060] The housing 1 is provided with an air outlet channel 11 for allowing the air in the housing 1 to flow out of the housing 1. The air in the housing 1 can be mixed with the formed smoke and then flow out of the air outlet channel 11 for the user to inhale. The housing 1 is also provided with a liquid storage chamber 101 for storing smoke oil and smoke liquid. One end of the housing 1 can be open to facilitate assembly of the atomizer core assembly, the lower cover 2 and other components.

[0061] The atomizer core assembly is fixedly arranged in the housing. The side wall of the atomizer core assembly forms a sealing fit with the inner wall of the housing 1. For example, the side wall of the atomizer core assembly can be an atomizer core seal 4 with a certain elasticity, as shown in FIG. Figure 1 As shown, after the atomizer core assembly is installed into the housing, the atomizer core seal 4 will form an extrusion relationship with the inner wall of the housing 1, thereby forming a sealing fit relationship.

[0062] The lower cover 2 is disposed on the housing 1, and the lower cover 2 seals the housing 1. Figure 1In the illustrated embodiment, the lower end of the housing 1 is open, and the lower cover 2 is buckled on the open portion of the housing 1, so that the internal space of the housing 1 is basically closed. At least one first air inlet 211 is formed at the bottom of the lower cover 2. The first air inlet 211 is used to allow external air to flow into the internal space of the housing 1. The air flows in the housing 1 through the curved air path and finally flows out from the air outlet channel 11.

[0063] refer to Figure 1 As shown, the atomizer core assembly is located between the lower cover 2 and the liquid storage chamber 101. On the one hand, it is used to absorb the smoke oil and smoke liquid in the liquid storage chamber 101, and on the other hand, it evaporates and atomizes the smoke liquid to form an aerosol by generating heat. The air entering from the bottom of the lower cover 2 will mix with the smoke and aerosol, and under the suction of the user, the smoke will flow out along the air outlet channel 11. The upper end surface of the atomizer core assembly is connected to the liquid storage chamber 101 for absorbing the smoke liquid. The upper end surface of the atomizer core assembly can be directly connected to the liquid storage chamber 101 and contact the smoke liquid therein, or it can be connected to the liquid storage chamber through other structures in the cigarette cartridge structure.

[0064] The atomizer core assembly has a central axis c extending from its upper end surface to the lower end surface, and the direction of the central axis c can be equivalent to the direction from the upper end of the housing 1 to the bottom of the lower cover 2. The atomizer core assembly can be an elliptical column with a certain height or a special-shaped structure similar to an elliptical column. The central axis c is an axis along the height direction of the atomizer core assembly, and the central axis c is located in the central area of ​​the elliptical or elliptical end surface.

[0065] Reference Figure 2 As shown, a through hole 311 is also provided on the atomizer core assembly, and the through hole 311 can pass through the upper end surface and the lower end surface of the atomizer core assembly along the central axis c. The axis of the through hole 311 can coincide with the central axis c, or can be offset from each other. The through hole 311 is used to form a communication relationship between the first air inlet 211 and the air outlet channel 11. After the air flowing in from the first air inlet 211 is mixed with the smoke in the shell 1, it can flow into the air outlet channel 11 through the through hole 311 and then flow out of the shell 1.

[0066] In this solution, relative to the central axis c, the first air inlet 211 is opened along the radial direction tending to the atomizer core assembly. This form of the first air inlet 211 is not directly facing the lower end surface of the atomizer core assembly, but is opened obliquely in the lateral direction. For example, the first air inlet 211 can be completely opened in the radial direction of the atomizer core assembly and in the lateral direction; it can also be opened at an angle of 30° upward. In this way, the air flowing into the first air inlet 211 at the bottom of the lower cover 2 will first flow laterally, and the path of the air flowing in the shell will be extended. Furthermore, the air is mixed with the smoke and then flows out from the through hole 311 above. A curved air path is formed between the first air inlet and the through hole 311 for air deflection flow.

[0067] The cigarette cartridge structure provided in this solution improves the positional relationship between the first air inlet 211 and the through hole 311, so that the air flowing into the housing 1 can be better mixed with the smoke generated in the housing 1. This design extends the air flow route, the mixed smoke formed is relatively more uniform, and the user's smoking experience is better.

[0068] Optionally, refer to Figure 1 and Figure 3 As shown, the curved air path is configured to enable the air entering the shell 1 from the first air inlet 211 to flow to the through hole 311 in a deflected and / or rotating manner. For example, the first air inlet 211 can be opened in a horizontal direction, and the inner wall of the air inlet can be an arc surface. In this way, the airflow can have a certain rotational movement tendency when flowing into the shell 1. The air has the movement characteristics of deflection and rotation during the flow in the shell 1, which can better improve the uniformity of mixing of air and smoke. In addition, the present solution can also adjust the relative position of the through hole 311 and the first air inlet 211, thereby enabling the air to flow in a deflected and rotating manner.

[0069] Optionally, refer to Figure 2 As shown, the atomizer core assembly may include a porous body 31 and a heating element 32. The porous body 31 has a microporous structure, which is used to absorb smoke liquid. The porous body 31 has a liquid absorption surface and an atomization surface. The liquid absorption surface can serve as the upper end surface of the atomizer core assembly, which is used to communicate with the liquid storage chamber and absorb smoke liquid. The atomization surface can serve as the lower end surface of the atomizer core assembly, and the heating element 32 is arranged on the atomization surface. The heating element 32 can be heated by powering on, and it can heat and atomize the smoke oil that penetrates into the atomization surface to form smoke and aerosol. Reference Figure 1As shown, an atomizing chamber 102 is formed between the atomizing surface and the lower cover 2. The atomizing chamber 102 is used to contain the formed smoke, and is also used to mix the air flowing in from the first air inlet 211 with the smoke. The atomizing chamber 102 provides sufficient space for air mixing. When air enters the housing 1 from the first air inlet 211, the air can flow toward the side wall of the lower cover 2 to enter the atomizing chamber 102, and then flow obliquely upward to the area close to the atomizing core assembly under the blocking effect of the lower cover 2 and the side wall of the housing 1. The air mixed with the smoke finally flows to the air outlet channel 11 through the through hole 311. In this way, the atomizing chamber 102 and the first air inlet 211 provide spatial conditions for the full mixing of air and smoke, which is conducive to the mixing effect.

[0070] Optionally, the curved air path provided by the present solution can make the air flow into the housing laterally and then be deflected upward. After the air flows to the atomizer core assembly above, it can be further dispersed downward after being blocked by the atomizer core assembly, and the airflow disperses or forms a spiral airflow. This arrangement can significantly improve the uniformity of mixing of air and smoke. Optionally, the atomizer chamber 102 provides a space for sufficient mixing of the air that disperses and rotates downward, and the air can form a good mixing effect with the original air and / or smoke in the atomizer chamber during the spiral flow process.

[0071] Optionally, the solution can adjust the opening position of the through hole 311 on the atomizer core assembly so that the air can be better mixed with the smoke.

[0072] In an optional embodiment, the through hole 311 may be coaxial with the central axis c of the atomizer core assembly, that is, the central axis c serves as the axis of the through hole 311. In this embodiment, the through hole is located at the center of the atomizer core assembly.

[0073] In another optional embodiment, the axis of the through hole 311 may not overlap with the central axis c, that is, the axis of the through hole 311 is offset by a certain distance relative to the central axis c. The through hole 311 is located at a position that is offset by a predetermined distance as a whole to the first side of the central axis c. In this way, the through hole 311 is not located at the center of the atomizer core assembly. With this design, after the air entering from the first air inlet 211 deflects upward and flows, it can further form a deflected or spiral flow, and then flow to the offset through hole. In this way, the air can be better mixed with the smoke in the shell.

[0074] Optionally, in the technical solution where the through hole 311 is offset to the first side relative to the central axis c, the heating element 32 can be arranged at a position offset to the second side of the central axis. The heating element can be arranged on the atomizing surface by printing, and the heating element 32 can be arranged spaced apart from the through hole 311. The first side and the second side are the two sides of the central axis c respectively, and the offset to the first side and the offset to the second side refer to offsets in opposite directions. Figure 2 As shown, the through hole 311 is offset upward relative to the central axis c of the atomization core assembly, and the through hole 311 is relatively located above. Correspondingly, a larger blank area is left below the through hole 311 on the atomization surface, and the heating element 32 is arranged in this part of the area offset downward relative to the central axis c. In this embodiment, in the atomization chamber, relative to the atomization core assembly, the part of the area where the heating element 32 is arranged can form more smoke during operation. And the part of the area where the through hole 311 is opened can form a larger air flow. Using this structural feature, the present solution can design the curved air path so that the air flow first passes through the area where the heating element 32 is located, providing favorable conditions for the full mixing of air and smoke. Then, the air is deflected and flows toward the side close to the through hole 311. This optional way of offsetting the through hole 311 and the heating element 32 to both sides of the atomization core assembly provides better space and structural conditions for the full mixing of air and smoke, which is conducive to forming smoke with better taste and more uniformity. The curved air path can make full use of this structural feature to optimize the air flow path.

[0075] Optionally, the curved air path may have a main air inlet side and a secondary air inlet side. Along the central axis c, the area on one side thereof may serve as the main air inlet side. The main air inlet side is used to supply a large amount of air to enter the housing 1 and the atomizing chamber 102. The area on the other side of the central axis c serves as the secondary air inlet side, which only allows a small amount of air to enter or does not allow air to enter. The small amount of air entering from the secondary air inlet side is mainly used to adjust the curved air path so that the airflow can flow to the corners of the housing 1 and the atomizing chamber 102, thereby improving the fluidity of the air in the atomizing chamber 102 and reducing the dead corners of air flow. The air intake of the main air inlet side is greater than the air intake of the secondary air inlet side.

[0076] The present solution does not strictly limit the space occupied by the main air intake side and the auxiliary air intake side. In different implementations of the present solution, the opening amount, opening size, opening position and direction of the first air intake port 211 can be controlled to determine which side of the central axis c is the main air intake side and the other side is the auxiliary air intake side.

[0077] For example, refer to Figure 4-Figure 6The lower cover 2 shown in the figure has a first air inlet 211 in the upper half of the bottom of the lower cover 2, while the lower half does not have the first air inlet 211. Air mainly enters the interior of the housing 1 through the first air inlet 211 in the upper half. With respect to the central axis c of the atomizer core assembly, the side where the upper half is located is the main air inlet side on one side of the central axis c, and the side where the lower half is located is the secondary air inlet side on the other side of the central axis c.

[0078] For the main air inlet side and the auxiliary air inlet side, it can be understood that a plane parallel to the central axis can divide the curved air path in the atomization chamber into two side areas, and the two sides of the plane are the main air inlet side and the auxiliary air inlet side respectively. Figure 6 As shown, a surface d parallel to the central axis c and extending laterally can divide the atomization chamber into two areas, an upper side and a lower side. The first air inlets 211 with larger openings are all distributed in the upper area, and the second air inlets 215 with smaller openings are all distributed in the lower area. The upper side of the surface d is the main air inlet side of the curved air path, and the lower side of the surface d is the secondary air inlet side of the curved air path.

[0079] In other embodiments, by adjusting the difference in distribution areas of the first air inlet and the second air inlet, the main air inlet side and the auxiliary air inlet side may also be divided by folding surfaces or the like.

[0080] Optionally, refer to Figure 4-Figure 6 As shown, the lower cover 2 is provided with two first air inlets 211 on the main air inlet side. The two first air inlets 211 jointly assume the air inlet function. The two first air inlets 211 can be spaced apart around the central axis c. For example, the two first air inlets 211 are spaced apart by about 60° around the central axis c. The two first air inlets 211 can meet the demand for a large amount of air inflow, and the air flows through more space, which is convenient for mixing air and smoke.

[0081] Optionally, the through hole 311 is located at a position offset to the secondary air inlet side. As described above, the air intake volume of the secondary air inlet side is small, and the air mainly flows into the housing 1 through the first air inlet 211 of the primary air inlet side. The air flowing in from the primary air inlet side will not flow directly to the position corresponding to the through hole 311 during the upward deflection flow process. The air needs to continue to disperse and rotate in the atomization chamber 102 before it can flow to the position of the through hole 311 located on the secondary air inlet side, and then leave from the through hole 311.

[0082] With this layout, the air has a longer air path for dispersed flow in the housing 1 and the atomization chamber 102. When compared under a constant airflow velocity, the lower cover 2 and the atomization core assembly using the above layout can make the air flow through more space in the housing 1 in a more dispersed manner, thereby improving the mixing effect of air and smoke. Furthermore, in the technical solution of arranging the through hole 311 toward the secondary air intake side, the heating element 32 can be arranged on the main air intake side, and the heating element 32 and the through hole 311 are respectively located on both sides of the central axis c. With this design, the inflowing air can flow to a position close to the heating element 32 after deflection and reflection, and then take away a large amount of smoke formed around the heating element 32, thereby improving the mixing efficiency and mixing uniformity.

[0083] Optionally, refer to Figure 4-Figure 6 As shown, at least one second air inlet 215 is also formed on the lower cover 2, and the second air inlet 215 is located on the auxiliary air inlet side. The second air inlet 215 is used to assist air intake and provide a richer air flow area for the curved air path. By opening the second air inlet 215 on the auxiliary air inlet side, the flow area of ​​air in the housing 1 and the atomizing chamber 102 can be effectively increased, the air circulation dead angle in the atomizing chamber 102 can be reduced, and the air replacement efficiency in the atomizing chamber 102 can be improved. The second air inlet 215 is not used as the main air inlet, and the main air inlet of the curved air path is still the first air inlet 211 located on the main air inlet side.

[0084] Optionally, the opening aperture of the second air inlet 215 is smaller than the opening aperture of the first air inlet 211. The air intake volume of the second air inlet 215 with a smaller opening aperture is also relatively small. When the number of the second air inlet 215 is equal to that of the first air inlet 211, or the number of the second air inlet 215 is smaller, the air intake volume formed by the second air inlet 215 on the auxiliary air intake side is significantly smaller than the air intake volume on the main air intake side. Optionally, the opening aperture of the second air inlet 215 can be less than two-thirds of the opening aperture of the first air inlet 211.

[0085] The first air inlet 211 and the second air inlet 215 can be circular or rectangular. If they are circular, the opening diameter can refer to the diameter; if they are rectangular, the opening diameter can refer to the side length.

[0086] Optionally, the number of the first air inlets 211 is greater than or equal to the number of the second air inlets 215. For example, optionally, the main air inlet side is provided with two first air inlets 211, while the auxiliary air inlet side is provided with only one second air inlet 215. When the number of the first air inlets 211 and the second air inlet 215 is equal, the overall air intake volume of the auxiliary air inlet side can be made smaller than the overall air intake volume of the main air inlet side by controlling the opening size of the second air inlet 215.

[0087] The total opening area of ​​each of the second air inlets 215 on the secondary air inlet side is smaller than the total opening area of ​​each of the first air inlets 211 on the primary air inlet side. By controlling the total opening area, the number and size of the openings and the space occupied can be adjusted on the primary air inlet side and the secondary air inlet side, so as to expand the flow area of ​​the curved air path and enrich the air path distribution mode.

[0088] In an optional embodiment, two second air inlets 215 are distributed on the secondary air inlet side, and the two second air inlets 215 are distributed around the central axis c, and the two are spaced about 60° around the central axis c. By distributing the two second air inlets 215 at intervals, the airflow on the secondary air inlet side can be made uniform, so that the air at the corners of the atomizing chamber can flow fully, and more sufficient air flow can be achieved in the atomizing chamber.

[0089] Optionally, the first air inlet 211 and the second air inlet 215 are distributed in a centrally symmetrical manner relative to the central axis. This distribution method makes the air intake amount of the primary air inlet side and the secondary air inlet side significantly different on the one hand, and makes the air intake amount of the primary air inlet side and the secondary air inlet side uniform and balanced on the other hand. In particular, in the scheme where multiple first air inlets and multiple second air inlets are provided, the advantages of this embodiment are more prominent.

[0090] Optionally, refer to Figure 4-Figure 6 As shown, the main air inlet side is distributed with two first air inlets 211, and the first air inlets 211 are distributed around the axis on one side of the central axis c. The two first air inlets 211 and the two second air inlets 215 are respectively located on both sides of the central axis c, and the two first air inlets 211 and the two second air inlets 215 are centrally symmetrically distributed relative to the central axis c. The opening size of the second air inlet 215 is smaller than the opening size of the first air inlet 211.

[0091] Optionally, refer to Figure 4-Figure 6 As shown, the opening direction of the first air inlet 211 is perpendicular to the central axis c of the atomizer core assembly, and the first air inlet 211 is completely opened horizontally, and the air flows horizontally when entering the shell. This distribution method can better form the curved air path. The horizontal first air inlet 211 can prevent the air from flowing to the through hole 311 too early, and prevent the air from being fully mixed with the smoke. This solution preferably adopts a first air inlet 211 opened horizontally and a second air inlet 215 opened horizontally, so as to form a good curved air path and extend the flow path of the air.

[0092] Optionally, refer to Figure 4-Figure 6As shown, the bottom of the lower cover 2 may be formed with an air inlet duct 21 protruding into the housing 1, and the air inlet duct 21 is connected to the outside for air to flow in. The air inlet duct 21 has a side wall and a top plate 214, and at least a portion of the structure of the first air inlet 211 is opened on the side wall 213 of the duct. By using the side wall 213 of the duct, the first air inlet 211 is convenient to have an opening direction that is basically transverse or tends to the radial direction of the atomization core assembly. Since a portion of the structure of the air inlet duct 21 protrudes into the housing 1, it is possible to directly open the first air inlet 211 laterally on the side wall of the air inlet duct 21. The curved air path for realizing this solution is an optimized implementation method.

[0093] Optionally, the air inlet duct 21 itself can be coaxial with the central axis c, that is, the air inlet duct 21 is located at the center of the atomizer core assembly. In this way, the first air inlet 211 can better achieve the function of deflecting the airflow. In particular, in the embodiment where the through hole 311 deviates from the central axis c, the air inlet duct 21 can be used to more effectively increase the length of the curved air path.

[0094] In some optional embodiments, a small portion of the first air inlet 211 may be opened on the top plate 214 to change the airflow direction. Preferably, the first air inlet 211 is completely opened on the duct side wall 213 so that the first air inlet 211 is opened radially toward the atomizer core assembly.

[0095] Optionally, refer to Figure 4-Figure 6 As shown, the first air inlet 211 can be completely opened on the side wall 213 of the pipe, and it is opened horizontally. The position of the first air inlet 211 on the air inlet pipe 21 is close to the top plate 214, that is, although the first air inlet 211 is opened horizontally, it is relatively close to the top of the air inlet pipe 21 as a whole. An auxiliary notch 212 can be opened at the edge of the top plate 214, and the position of the auxiliary notch 212 corresponds to the position of the first air inlet 211. The auxiliary notch 212 can be a rectangular notch formed on the top plate 214, refer to Figure 4-Figure 6As shown, it can also be a semicircular notch. The auxiliary notch 212 does not allow the first air inlet 211 to open directly in the direction of the top plate 214, that is, the auxiliary notch 212 will not open the first air inlet 211 upward. The function of the auxiliary notch 212 is that after the air enters the atomizing chamber 102 laterally from the first air inlet 211, the auxiliary notch 212 forms a avoidance for the flow path of the air, and the air can flow smoothly in an oblique upward direction. In this way, the air can flow obliquely upward directly toward the side wall direction of the atomizing chamber 102, and the air can flow directly into the area filled with smoke. The auxiliary notch 212 plays a role in increasing the direction of air diffusion and can slightly change the direction of air flow. Relative to the top plate 214 without the auxiliary notch 212, the use of the auxiliary notch 212 can avoid the oblique deflection of the air by the top plate 214.

[0096] On the contrary, in the technical solution without the auxiliary notch 212, a part of the air will flow to the bottom of the atomizing chamber 102, that is, the area near the bottom of the lower cover 2. This part of the air can play a role in displacing the upper air so that it can be discharged from the through hole as soon as possible. In this solution, whether to use the auxiliary notch 212 can be selected according to different actual application performances.

[0097] This solution also provides an electronic cigarette, reference Figure 7 As shown, the electronic cigarette includes a cigarette rod structure and the above-mentioned cigarette cartridge structure. The atomizer core assembly includes a porous body 31 and a heating body 32. The heating body 32 is arranged on the porous body 31, and the heating body 32 is located at the lower end surface of the atomizer core assembly as a whole.

[0098] The cigarette rod structure is connected to the cigarette cartridge structure. Optionally, the cigarette rod structure can form a detachable connection with the shell 1 and / or the lower cover 2. The cigarette rod structure has electrical components, including batteries, circuit boards, chips and other devices. When the cigarette rod structure and the cigarette cartridge structure are assembled and connected, the electrical components can be electrically connected to the heating element 32 through electrical connectors. The electrical connectors can be conductive nails 5, conductive shrapnel and other components. The electrical components can be used to supply power to the heating element 32, so that the heating element 32 heats up and the time has an atomization effect on the smoke liquid. Furthermore, the electronic cigarette can also include an oil absorption element 6 and a lower cover seal 7.

[0099] According to an optional embodiment of the present application, the porous body 31 is provided with a ventilation channel, and the ventilation channel runs from the atomization surface to the liquid absorption surface.

[0100] According to an optional embodiment of the present application, the ventilation channel is a ventilation through hole opened on the porous body, and the ventilation through hole is spaced apart from the through hole on the porous body.

[0101] According to an optional embodiment of the present application, the atomizer core assembly includes an atomizer core seal 4, which is sleeved on the outside of the porous body 31; the atomizer core seal 4 is configured to form a mutually extruded sealing fit with the inner wall of the shell 1 of the electronic cigarette.

[0102] According to an optional embodiment of the present application, a ventilation groove 301 is opened on the side circumference of the porous body 31, and the atomizer core seal 4 cooperates with the ventilation groove 301 to form the ventilation channel.

[0103] According to an optional embodiment of the present application, there are two or more ventilation slots 301 .

[0104] According to an optional embodiment of the present application, the two or more ventilation grooves are distributed at intervals on the side circumference of the porous body 31 .

[0105] According to an optional embodiment of the present application, there are two ventilation grooves, and the two ventilation grooves are symmetrically arranged on both sides of the porous body.

[0106] The ventilation channel is used to achieve air pressure balance between the liquid storage chamber and the atomizing chamber. The ventilation channel is located at the edge of the porous body, which facilitates the connection between the liquid storage chamber and the atomizing chamber without interfering with the through hole. The ventilation channel can be an elongated hole with a diameter much smaller than the through hole opened on the porous body, or a ventilation groove opened at the edge of the porous body.

[0107] Reference Figure 2 As shown, a ventilation groove 301 may be opened on the side of the porous body 31, and the ventilation groove 301 extends from the atomization surface to the liquid absorption surface.

[0108] When the atomizer core assembly in the embodiment of the present application is applied to an electronic cigarette, the smoke oil penetrates from the liquid absorption surface to the atomization surface through the porous body 31, thereby reducing the air pressure of the liquid storage chamber in the electronic cigarette, and at the same time, the air enters the atomization chamber from the air inlet channel of the electronic cigarette. At this time, the air pressure in the atomization chamber is greater than the air pressure in the liquid storage chamber, and the gas enters the liquid storage chamber from the atomization chamber through the ventilation groove 301, thereby effectively achieving the air pressure balance between the liquid storage chamber and the atomization chamber of the electronic cigarette, avoiding the situation that the smoke oil is difficult to smoothly penetrate from the liquid absorption surface of the porous body 31 to the atomization surface, and preventing dry burning from affecting the taste of the user when smoking. When the atomizer core assembly in the embodiment of the present application is applied to an electronic cigarette, the smoke oil in the liquid storage chamber of the electronic cigarette can smoothly penetrate from the liquid absorption surface of the porous body 31 to the atomization surface, the atomization effect of the atomization surface is good, and the user has a good taste when smoking.

[0109] Reference Figure 2As shown, in an optional embodiment, at least two ventilation slots 301 are provided. Only one ventilation slot 301 can be provided, and one ventilation slot 301 can play the role of ventilating the liquid storage chamber and the atomization chamber of the electronic cigarette to maintain the air pressure balance. In this specific example, at least two ventilation slots 301 are provided to better maintain the air pressure balance between the liquid storage chamber and the atomization chamber of the electronic cigarette. The two ventilation slots 301 are centrally symmetrically distributed relative to the central axis c.

[0110] Reference Figure 2 and Figure 8 As shown, in an optional embodiment, the porous body 31 is an elliptical cylinder.

[0111] Since the cross-sectional shape of the shell of the electronic cigarette is mostly elliptical, in this embodiment, the porous body 31 is set as an elliptical cylinder. The shape of the porous body 31 matches the shape of the shell of the electronic cigarette, so that during assembly, the atomization core assembly can better fit the inner wall of the shell of the electronic cigarette. On the other hand, the volume of the porous body 31 can be maximized while adapting to the shell shape of the electronic cigarette, so that the smoke liquid in the liquid storage cavity of the electronic cigarette can more smoothly penetrate from the liquid absorption surface of the porous body 31 to the atomization surface, thereby improving the atomization efficiency of the porous body 31 and making the user's suction taste better.

[0112] Reference Figure 2 As shown, in one embodiment, further, two ventilation grooves 301 are provided, and the two ventilation grooves 301 are respectively located at two ends of the elliptical major axis of the porous body 31 .

[0113] The ventilation groove 301 can also be set at other positions of the porous body 31; in this specific example, the ventilation groove 301 is set at both ends of the elliptical major axis of the porous body 31, which can effectively avoid the opening of the ventilation groove 301 affecting the strength of the porous body 31.

[0114] Reference Figure 1 As shown, in one embodiment, further, the through hole 311 is an elliptical hole, the elliptical minor axis of the atomizing surface coincides with the elliptical minor axis of the through hole 311, and the elliptical major axis of the atomizing surface is offset by a predetermined distance relative to the elliptical major axis of the through hole 311. The advantage of this embodiment is that the shape of the through hole 311 is similar to the shape of the elliptical porous body and the inner wall of the shell 1. When arranging components such as the air outlet pipe 11, the space inside the shell 1 can be more fully utilized to improve space utilization. Optionally, the through hole 311 can also be a circular hole. The difficulty of processing the circular hole is explained, and it is beneficial to improve the structural strength of the porous body 31 and the reliability of the use of the smoke bomb structure.

[0115] The above embodiments focus on the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. Considering the simplicity of the text, they will not be repeated here.

[0116] Although some specific embodiments of the present application have been described in detail by way of example, it should be understood by those skilled in the art that the above examples are only for illustration, not for limiting the scope of the present application. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present application. The scope of the present application is defined by the appended claims.

Claims

1. A cartridge structure for an electronic cigarette, characterized in that: include: A shell body, wherein an air outlet passage is formed on the shell body, and a liquid storage cavity is formed in the shell body; A lower cover, the lower cover is disposed on the housing, and at least one first air inlet is formed at the bottom of the lower cover; An atomizer core assembly is arranged in the shell, the atomizer core assembly is located between the lower cover and the liquid storage chamber, the side wall of the atomizer core assembly is sealed with the inner wall of the shell, a through hole is opened on the atomizer core assembly, and the upper end surface of the atomizer core assembly is connected with the liquid storage chamber; The atomizer core assembly has a central axis extending from its upper end surface to its lower end surface. Relative to the central axis, the first air inlet is opened along a radial direction tending to the atomizer core assembly, and a curved air path is formed between the first air inlet and the through hole. The air outlet channel is connected with the first air inlet through the through hole; The inner wall surface of the first air inlet is a curved surface, so that the air entering the housing flows to the through hole in a rotating manner; The curved air path has a main air intake side and a secondary air intake side, the first air intake port is located on the main air intake side, the air intake volume of the main air intake side is greater than the air intake volume of the secondary air intake side, and the air entering from the secondary air intake side is used to regulate the curved air path.

2. The cartridge structure for electronic cigarette according to claim 1, characterized in that: The curved air path is configured to allow air entering the housing from the first air inlet to flow to the through hole in a deflected and rotated manner.

3. The cartridge structure for electronic cigarette according to claim 2, characterized in that: The atomizer core assembly includes a porous body and a heating element. The porous body has a liquid absorption surface and an atomization surface. The liquid absorption surface serves as the upper end surface of the atomizer core assembly, and the atomization surface serves as the lower end surface of the atomizer core assembly. The heating element is arranged on the atomization surface. The liquid absorption surface is connected to the liquid storage cavity, and an atomization cavity is formed between the atomization surface and the lower cover. The air enters the atomizing chamber through the first air inlet toward the side wall of the lower cover, and flows toward the air outlet channel through the through hole.

4. The cartridge structure for electronic cigarette according to claim 3, characterized in that: The curved air path allows air to flow into the housing laterally and deflect upward obliquely. The air flows upward to the atomizer core assembly, is blocked and disperses downward, and then flows into the through hole through the suction effect at the through hole.

5. The cartridge structure for electronic cigarette according to claim 4, characterized in that: The air is dispersed downwards, swirls inside the housing and mixes with the existing air and / or smoke.

6. The cartridge structure for electronic cigarette according to claim 3, characterized in that: Relative to the central axis, the through hole is located at a position offset to a first side of the central axis.

7. The cartridge structure for electronic cigarette according to claim 6, characterized in that: The heating element is located at a position offset to a second side of the central axis.

8. The cartridge structure for electronic cigarette according to claim 1, characterized in that: On the main air inlet side, two first air inlets are provided on the lower cover.

9. The cartridge structure for electronic cigarette according to claim 1, characterized in that: The through hole is located at a position offset toward the auxiliary air intake side.

10. The cartridge structure for electronic cigarette according to claim 1, characterized in that: At least one second air inlet is formed on the lower cover, and the second air inlet is located on the auxiliary air inlet side.

11. The cartridge structure for electronic cigarette according to claim 10, characterized in that: The opening aperture of the second air inlet is smaller than the opening aperture of the first air inlet.

12. The cartridge structure for electronic cigarette according to claim 10, characterized in that: The number of the first air inlets is greater than or equal to the number of the second air inlets.

13. The cartridge structure for electronic cigarette according to claim 10, characterized in that: The total opening area of ​​each of the second air inlets is smaller than the total opening area of ​​each of the first air inlets.

14. The cartridge structure for electronic cigarette according to claim 10, characterized in that: On the auxiliary air intake side, two second air intake ports are distributed around the central axis.

15. The cartridge structure for electronic cigarette according to claim 10, characterized in that: The first air inlet and the second air inlet are centrally symmetrically distributed relative to the central axis.

16. The cartridge structure for electronic cigarette according to claim 1, characterized in that: The opening direction of the first air inlet is perpendicular to the central axis of the atomizer core assembly.

17. The cartridge structure for electronic cigarette according to claim 1, characterized in that: An air intake duct protruding into the shell is formed at the bottom of the lower cover, and the air intake duct has a duct side wall and a top plate, and at least a part of the structure of the first air inlet is opened on the duct side wall.

18. The cartridge structure for electronic cigarette according to claim 3, characterized in that: The porous body is provided with a ventilation channel, and the ventilation channel runs through from the atomization surface to the liquid absorption surface.

19. The cartridge structure for electronic cigarette according to claim 18, characterized in that: The ventilation channel is a ventilation through hole opened on the porous body, and the ventilation through hole and the through hole are arranged on the porous body at intervals.

20. The cartridge structure for electronic cigarette according to claim 18, characterized in that: The atomizer core assembly comprises an atomizer core seal, which is sleeved on the outside of the porous body; the atomizer core seal is configured to form a mutually extruded sealing fit with the inner wall of the shell of the electronic cigarette.

21. The cartridge structure for electronic cigarette according to claim 20, characterized in that: A ventilation groove is formed on the side circumference of the porous body, and the atomizer core seal cooperates with the ventilation groove to form the ventilation channel.

22. The cartridge structure for electronic cigarette according to claim 21, characterized in that: The number of the ventilation slots is 2 or more.

23. The cartridge structure for electronic cigarette according to claim 22, characterized in that: The two or more ventilation slots are distributed at intervals on the side circumference of the porous body.

24. The cartridge structure for electronic cigarette according to claim 23, characterized in that: There are two ventilation grooves, and the two ventilation grooves are symmetrically arranged on both sides of the porous body.

25. An electronic cigarette, characterized in that: include: The cigarette cartridge structure according to any one of claims 1 to 24, wherein the atomizer core assembly comprises a heating element, and the heating element is located at the lower end surface of the atomizer core assembly; A cigarette rod structure, wherein the cigarette rod structure has an electrical component, the cigarette rod structure is connected to the cigarette cartridge structure, and the electrical component is configured to form an electrical connection with the heating element.

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