WO2023019714A1 - Cartridge structure of electronic cigarette, and electronic cigarette - Google Patents

Abstract

A cartridge structure of an electronic cigarette, and an electronic cigarette. The cartridge structure comprises a housing (1), a lower cover (2), and an atomization core assembly in the housing (1), wherein an air output channel (11) is formed in the housing (1), and the housing (1) is internally provided with a liquid storage cavity (101); the lower cover (2) covers the housing (1), and at least one first air inlet (211) is formed at the bottom of the lower cover (2); the atomization core assembly is located between the lower cover (2) and the liquid storage cavity (101), a side wall of the atomization core assembly is in a sealed fit with an inner wall of the housing (1), the atomization core assembly is provided with a through hole (311), and an upper end surface of the atomization core assembly is in communication with the liquid storage cavity (101); the atomization core assembly has a central axis (c) extending from the upper end surface thereof to a lower end surface thereof, and with respect to the central axis (c), the first air inlet (211) is configured in a radial direction towards the atomization core assembly, so that a bent air path is formed between the first air inlet (211) and the through hole (311); and the air output channel (11) is in communication with the first air inlet (211) by means of the through hole (311).

Description

Pod structure for electronic cigarette and electronic cigarette

This disclosure claims the priority of the Chinese patent application submitted to the China Patent Office on August 19, 2021 with the application number 202110956565.7 and the title of the application titled "Electrical cartridge structure and electronic cigarette", the entire contents of which are incorporated by reference in this disclosure.

technical field

The present disclosure relates to the technical field of electronic cigarettes, and more specifically, the present disclosure relates to a cartridge structure for electronic cigarettes and electronic cigarettes.

Background technique

In recent years, with the gradual improvement of people's living standards, people's attention to physical health has generally increased, and more and more people have begun to realize the harm of tobacco to their bodies. Compared with traditional cigarettes, the number of users of e-cigarettes is increasing day by day. Electronic cigarettes are electronic products imitating cigarettes, which can produce smoke similar to cigarettes. E-cigarette products usually generate smoke by atomizing e-liquid. Compared with traditional cigarettes, electronic cigarettes have the advantage that their health hazards to users are reduced, and most electronic cigarettes are easy to use, operate and carry, and do not need to be ignited.

In the prior art, the smoke produced by electronic cigarettes is not as uniform as that 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 experience of using electronic cigarettes. In addition, when the e-cigarette liquid is atomized, it is difficult to disperse the suspended aerosol into the air evenly, which further makes it difficult to form a uniform smoke.

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

Contents of the invention

An object of the present disclosure is to provide a cartridge structure for an electronic cigarette and the electronic cigarette.

According to the first aspect of the present disclosure, there is provided a cartridge structure for an electronic cigarette, including:

A housing, an air outlet channel is formed on the housing, and a liquid storage chamber is provided in the housing;

a lower cover, the lower cover is provided on the housing, and at least one first air inlet is formed at the bottom of the lower cover;

The atomizing core assembly is arranged in the housing, 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 housing, the A through hole is opened on the atomizing core assembly, and the upper end surface of the atomizing core assembly communicates with the liquid storage chamber;

The atomizing 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 atomizing core assembly, so A curved air path is formed between the first air inlet and the through hole;

The air outlet passage communicates with the first air inlet through the through hole.

Optionally, the curved air path is configured to make the air entering the casing from the first air inlet flow to the through hole in a deflected and/or rotated manner.

Optionally, the atomizing core assembly includes a porous body and a heating body, the porous body has a liquid absorbing surface and an atomizing surface, the liquid absorbing surface serves as the upper end surface of the atomizing core assembly, and the atomizing surface serves as the The lower end surface of the atomizing core assembly, the heating element is arranged on the atomizing surface, the liquid absorbing surface communicates with the liquid storage chamber, and an atomizing chamber is formed between the atomizing surface and the lower cover;

Air enters the atomization 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.

Optionally, the curved air path makes the air flow into the housing laterally and deflect upwards obliquely, the air flows upwards to the atomizing core assembly, is blocked and spreads downwards, and then flows in through the suction effect at the through hole the through hole.

Optionally, the air is diffused downwards and rotates within the housing and mixes with the existing air and/or smoke in the housing.

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

Optionally, relative to the central axis, the heating element is at a position offset to the second side of the central axis.

Optionally, the curved air path has a main air intake side and an auxiliary air intake side, the first air inlet is located on the main air intake side, and the air intake volume of the main air intake side is greater than that of the auxiliary air intake side. Intake volume on the air side.

Optionally, on the main air intake side, two first air intakes are opened on the lower cover.

Optionally, relative to the central axis, the through hole is located at a position offset to the secondary air intake side.

Optionally, at least one second air inlet is formed on the lower cover, and the second air inlet is located on the secondary air inlet side.

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

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

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.

Optionally, on the secondary air intake side, there are two second air intakes distributed around the central axis.

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

Optionally, the opening direction of the first air inlet is perpendicular to the central axis of the atomizing core assembly.

Optionally, the bottom of the lower cover is formed with an air intake pipe protruding into the housing, the air intake pipe has a pipe side wall and a top plate, at least a part of the first air inlet is opened in the pipe on the side wall.

Optionally, the porous body is provided with a ventilation channel, and the ventilation channel passes through from the atomizing surface to the liquid absorption surface.

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

Optionally, the atomizing core assembly includes an atomizing core seal, and the atomizing core seal is sleeved on the outside of the porous body; the atomizing core seal is configured to be used with the electronic The inner walls of the housing of the smoke form a mutually extruded sealing fit.

Optionally, a ventilating channel is formed on the side peripheral surface of the porous body, and the atomizing core seal cooperates with the ventilating channel to form the ventilating channel.

Optionally, there are 2 or more ventilation slots.

Optionally, the two or more ventilation slots are distributed on the side surface of the porous body at intervals.

Optionally, there are two ventilation channels, and the two ventilation channels are symmetrically arranged on both sides of the porous body.

According to another aspect of the present disclosure, an electronic cigarette is also provided, including:

In the aforementioned pod structure, the atomizing core assembly includes a heating element, and the heating element is located at the lower end surface of the atomizing core assembly;

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

A technical effect of the present disclosure is that the curved air path can increase the air flow path in the casing. Improve the uniformity of air and smoke mixing by bending the air path.

Other features of the present disclosure and advantages thereof will become apparent through the following detailed description of exemplary embodiments of the present disclosure with reference to the accompanying drawings.

Description of drawings

The accompanying drawings, which constitute a part of this specification, illustrate the embodiments of the disclosure and together with the description serve to explain the principles of the disclosure.

Fig. 1 is a schematic diagram of the structure of a pod according to an embodiment of the present disclosure;

Fig. 2 is a structural schematic diagram of a porous body in a pod structure according to an embodiment of the present disclosure;

Fig. 3 is a partial structural schematic diagram of the pod structure of an embodiment of the present disclosure;

FIG. 4 is a first structural schematic diagram of the lower cover in an embodiment of the present disclosure;

Fig. 5 is a second structural schematic diagram of the lower cover in an embodiment of the present disclosure;

Fig. 6 is a schematic diagram of the third structure of the lower cover in an embodiment of the present disclosure;

Fig. 7 is a schematic diagram of an exploded structure of an electronic cigarette in an embodiment of the present disclosure;

Fig. 8 is a schematic perspective view of the porous body of the pod structure in an embodiment of the present disclosure.

Explanation of reference signs:

1-housing, 101-liquid storage chamber, 102-atomization chamber, 11-outlet channel, 2-lower cover, 21-intake channel, 211-first air inlet, 212-auxiliary notch, 213-pipe side Wall, 214-top plate, 215-second air inlet, 31-porous body, 301-ventilation channel, 32-heating body, 4-atomizing core seal, 5-conductive nail, 6-oil absorbing element, 7 - lower cover seal, c - central axis.

Detailed ways

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

The following description of at least one exemplary embodiment is merely illustrative in nature and in no way intended as any limitation of the disclosure, its application or uses.

Techniques and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques and devices should be considered part of the description.

In all examples shown and discussed herein, any specific values should be construed as exemplary only, and not as limitations. Therefore, other instances of the exemplary embodiment may have different values.

It should be noted that like numerals and letters denote like items in the following figures, therefore, once an item is defined in one figure, it does not require further discussion in subsequent figures.

This proposal provides a cartridge structure for electronic cigarettes. A curved air path is formed in the pod structure, and the curved air path is used to extend the flow path of the airflow in the casing 1 and deflect the flow of the airflow in the casing 1 . Improve the uniformity of air and smoke mixing.

Referring to Fig. 1-Fig. 6, the pod structure includes a housing 1, a lower cover 2 and an atomizing core assembly.

An air outlet channel 11 is formed on the housing 1 , and the air outlet channel 11 is used for the air in the housing 1 to flow out from the housing 1 . The air in the housing 1 can be mixed with the formed smoke, and then flow out from the air outlet channel 11 for inhalation by the user. A liquid storage chamber 101 is also formed in the casing 1, and the liquid storage chamber 101 is used for storing e-liquid and e-liquid. One end of the casing 1 may be open, so as to assemble the atomizing core assembly, the lower cover 2 and other components.

The atomizing core assembly is fixedly arranged in the casing. The side wall of the atomizing core assembly forms a sealing fit relationship with the inner wall of the housing 1 . For example, the side wall of the atomizing core assembly can be an atomizing core seal 4 with a certain degree of elasticity. Referring to FIG. The inner wall forms a squeeze relationship, and then forms a sealed fit relationship.

The lower cover 2 is arranged on the casing 1, and the lower cover 2 seals the casing 1. In the embodiment shown in FIG. 1 , the lower end of the housing 1 is open, and the lower cover 2 is fastened to the opening of the housing 1 , so that the inner space of the housing 1 is basically closed. At least one first air inlet 211 is formed on the bottom of the lower cover 2 . The first air inlet 211 is used for the outside air to flow into the inner space of the casing 1 . The air flows in the casing 1 through the curved air path, and finally flows out from the air outlet channel 11 .

Referring to FIG. 1, the atomizing 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 e-liquid and e-liquid in the liquid storage chamber 101. On the other hand, it evaporates the e-liquid through heat generation, Atomized to form an aerosol. The air entering from the bottom of the lower cover 2 will mix with the smoke and aerosol, and the smoke will flow out along the air outlet channel 11 under the action of the user's suction. The upper end surface of the atomizing core assembly is in communication with the liquid storage chamber 101 for absorbing smoke liquid. The upper end surface of the atomizing core assembly may directly communicate with the liquid storage chamber 101 and be in contact with the e-liquid therein, or communicate with the liquid storage chamber through other structures in the cartridge structure.

The atomizing core assembly has a central axis c extending from its upper end surface to its lower end surface, and the direction of the central axis c may be equivalent to the direction from the upper end of the casing 1 to the bottom of the lower cover 2 . The atomizing core assembly can be an elliptical cylinder with a certain height or a special-shaped structure similar to an elliptical cylinder. The central axis c is an axis along the height direction of the atomizing core assembly, and the central axis c is located in the central area of the elliptical or quasi-elliptical end surface.

Referring to FIG. 2 , a through hole 311 is opened on the atomizing core assembly, and the through hole 311 can pass through the upper end surface and the lower end surface of the atomizing core assembly along the central axis c. The axes of the through holes 311 may coincide with the central axis c, or may 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 casing 1 , it can flow into the air outlet channel 11 through the through hole 311 , and then flow out of the casing 1 .

In this solution, relative to the central axis c, the first air inlet 211 is opened along a radial direction tending to the atomizing core assembly. The first air inlet 211 in this form does not directly face the lower end surface of the atomizing core assembly, but opens obliquely to the transverse direction. For example, the first air inlet 211 can be opened completely towards the radial direction of the atomizing core assembly, or opened transversely; it can also be opened upward at an angle of 30°. In this way, the air flowing in from the first air inlet 211 at the bottom of the lower cover 2 first flows laterally, and the path of the air flowing in the casing is extended. Further, the air is mixed with the smoke and then flows out from the upper through hole 311 . A curved air path is formed between the first air inlet and the through hole 311 for deflected flow of air.

The pod structure provided by 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 better mix with the smoke generated in the housing 1 . This design method prolongs the air flow route, and the mixed smoke formed is relatively more uniform, and the user's suction experience is better.

Optionally, as shown in FIG. 1 and FIG. 3 , the curved air path is configured to make the air entering the casing 1 from the first air inlet 211 flow to the through hole 311 in a deflected and/or rotated manner. For example, the first air inlet 211 may be opened transversely, and the inner wall of the air inlet may be curved. In this way, when the airflow flows into the casing 1, it may have a certain rotational movement tendency. The air has the characteristics of deflection and rotation during the flow in the casing 1, which can better improve the uniformity of mixing of air and smoke. In addition, this solution can also adjust the relative positions of the through hole 311 and the first air inlet 211 , thereby promoting the air to flow in a deflected and rotated manner.

Optionally, referring to FIG. 2 , the atomizing core assembly may include a porous body 31 and a heating body 32 . The porous body 31 has a microporous structure, which is used for absorbing smoke liquid. The porous body 31 has a liquid-absorbing surface and an atomizing surface, and the liquid-absorbing surface can be used as the upper end surface of the atomizing core assembly, which is used to communicate with the liquid storage chamber and absorb the e-liquid. The atomizing surface can be used as the lower end surface of the atomizing core assembly, and the heating element 32 is arranged on the atomizing surface. The heating element 32 can be heated by electricity to heat up, and it can heat and atomize the e-liquid that penetrates into the atomizing surface to form smoke and aerosol. Referring to FIG. 1 , an atomization chamber 102 is formed between the atomization surface and the lower cover 2 . The atomizing chamber 102 is used to accommodate the formed smoke, and is also used to mix the air flowing in from the first air inlet 211 with the smoke. The atomization chamber 102 provides ample space for air mixing. When the air enters the casing 1 from the first air inlet 211, the air can flow toward the side wall of the lower cover 2 to enter the atomization chamber 102, and then flow upward obliquely to the The area close to the atomizing core assembly. The air-mixed smoke finally flows to the outlet channel 11 through the through hole 311 . In this way, the atomization chamber 102 and the first air intake hole 211 provide space conditions for the air and smoke to be fully mixed, which is conducive to the mixing effect.

Optionally, the curved air path provided in this solution can make the air flow into the housing laterally and then be deflected obliquely upward. After the air flows to the upper atomizing core assembly and is blocked by the atomizing core assembly, it can further disperse downwards, and the air flow spreads out or forms a spiral air flow. This arrangement can significantly improve the uniformity of air and smoke mixing. Optionally, the atomizing chamber 102 provides a sufficient mixing space for the downwardly diffused and swirling air, and the air can form a good mixing effect with the original air and/or smoke in the atomizing chamber during the spiral flow process.

Optionally, in this solution, the opening position of the through hole 311 on the atomizing core assembly can be adjusted so that the air can be better mixed with the smoke.

In an optional embodiment, the through hole 311 may be coaxial with the central axis c of the atomizing 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 atomizing core assembly.

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 from the central axis c. The through hole 311 is at a position generally offset by a predetermined distance to the first side of the central axis c. In this way, the through hole 311 is not located at the center of the atomizing core assembly. With this design, after the air entering from the first air inlet 211 is deflected upwards, it can further form a deflected or helical flow, and then flow to the offset through hole. In this way, the air can better mix with the smoke in the housing.

Optionally, in the technical solution in which the through hole 311 is offset to the first side relative to the central axis c, the heating element 32 may be disposed 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 at a distance from the through hole 311 . The first side and the second side are respectively two sides of the central axis c, and shifting to the first side and shifting to the second side refer to shifting in opposite directions. Referring to FIG. 2 , the through hole 311 is offset upward relative to the central axis c of the atomizing core assembly, and the position of the through hole 311 is relatively upper. Correspondingly, a larger blank area is left on the atomization surface below the through hole 311 , and the heating element 32 is arranged at this part of the area that is offset downward relative to the central axis c. In this embodiment, in the atomizing chamber, compared with the atomizing core assembly, the area where the heating element 32 is disposed can form more smoke during operation. The part of the area where the through hole 311 is opened can form a larger outlet airflow. Utilizing this structural feature, this 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 to flow toward the side close to the through hole 311 . This optional method of offsetting the through hole 311 and the heating element 32 to the two sides of the atomizing core assembly provides better space and structural conditions for the air and smoke to fully mix, and is conducive to forming a better and more uniform taste. smoke. The curved air path can make full use of this structural feature to optimize the air flow path.

Optionally, the curved air path may have a primary intake side and a secondary intake side. Along the central axis c, the area on one side thereof can serve as the main intake side. The main air intake side is used to supply a large amount of air into the casing 1 and the atomizing chamber 102 . The area on the other side of the central axis c is used as the secondary air intake side, which only allows a small amount of air to enter or does not allow air to enter. A small amount of air entering from the auxiliary air intake side is mainly used to adjust the curved air path, so that the air flow can flow to the corners of the housing 1 and the atomization chamber 102, improve the fluidity of the air in the atomization chamber 102, and reduce the air flow dead corner. The intake air volume of the main intake side is larger than that of the auxiliary intake side.

This scheme does not strictly limit the space occupied by the main air intake side and the auxiliary air intake side. In different implementations of this scheme, it can be determined by controlling the opening amount, opening size, opening position and direction of the first air intake 211 Which side of the central axis c is the main intake side, and the opposite side is the secondary intake side.

For example, referring to the lower cover 2 shown in FIGS. 4-6 , the upper half of the bottom of the lower cover 2 is provided with a first air inlet 211 , while the lower half is not provided with the first air inlet 211 . The air enters the interior of the housing 1 mainly through the first air inlet 211 in the upper half area. With respect to the central axis c of the atomizing core assembly, the side where the upper half area is located is the main air intake side on the side of the central axis c, and oppositely, the side where the lower half area is located is the side of the central axis c Secondary intake side on the other side.

For the main air inlet side and the auxiliary air inlet side, it can be understood that a surface parallel to the central axis can divide the curved air path in the atomization chamber into two sides. The two sides of the surface are the main air inlet side and the auxiliary air inlet side. Auxiliary intake side. For example, as shown in FIG. 6 , a surface d parallel to the central axis c and extending transversely can divide the atomization chamber into two regions, the upper side and the 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. Then the upper side of the surface d is the main intake side of the curved air passage, and the lower side of the surface d is the auxiliary intake side of the curved air passage.

In other embodiments, by adjusting the difference in the distribution area of the first air inlet and the second air inlet, the main air inlet side and the auxiliary air inlet side can also be divided by folded surfaces or the like.

Optionally, as shown in FIGS. 4-6 , the lower cover 2 is provided with two first air inlets 211 on the main air inlet side. The two first air inlets 211 share the air intake function. The two first air inlets 211 may be distributed at intervals around the central axis c. For example, the two are distributed at an interval of about 60° around the central axis c. The two first air inlets 211 can meet the demand of a large amount of air inflow, and the air flows through more space, which facilitates the mixing of air and smoke.

Optionally, relative to the central axis c, the through hole 311 is at a position offset to the secondary air intake side. As mentioned above, the amount of intake air on the secondary intake side is relatively small, and the air mainly flows into the casing 1 through the first intake port 211 on the primary intake side. The air flowing in from the main air intake side will not directly flow to the position corresponding to the through hole 311 during the upward deflected flow. The air needs to continue to disperse and flow in the atomization chamber 102 , and then it can flow to the position where the through hole 311 on the auxiliary air intake side is located, and then leave the through hole 311 .

Through this layout, the air path for the air to disperse and flow in the housing 1 and the atomizing chamber 102 is longer. Compared with a constant air flow rate, the lower cover 2 and the atomizing core assembly using the above layout can make The air flows through more spaces in the casing 1 more dispersedly, which improves the mixing effect of the air and the smoke. Further, in the technical solution of arranging the through hole 311 toward the auxiliary 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. Through this design method, the inflowing air can first 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, improving the mixing efficiency and uniformity of mixing.

Optionally, as shown in FIG. 4-FIG. 6 , at least one second air inlet 215 is formed on the lower cover 2, and the second air inlet 215 is located on the secondary air inlet side. The second air inlet 215 is used for assisting air intake to provide a more abundant air flow area for the curved air path. By opening the second air inlet 215 on the auxiliary air intake side, the flow area of the air in the housing 1 and the atomization chamber 102 can be effectively increased, the dead angle of air circulation in the atomization chamber 102 can be reduced, and the air flow in the atomization chamber 102 can be improved. air replacement efficiency. 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 on the main air inlet side.

Optionally, the aperture diameter of the second air inlet 215 is smaller than the aperture diameter of the first air inlet 211 . The intake air volume of the second air intake port 215 with a smaller opening diameter 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 less, the amount of air formed by the second air inlet 215 on the secondary air intake side is significantly smaller than Intake volume on the main intake side. Optionally, the opening diameter of the second air inlet 215 may be smaller than two-thirds of the opening diameter of the first air inlet 211 .

Both the first air inlet 211 and the second air inlet 215 can be round or rectangular. If it is a round mouth, the opening diameter can refer to the diameter; if it is a rectangular mouth, the opening diameter can refer to the side length.

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, two first air inlets 211 are opened on the main air intake side, and only one second air intake 215 is opened on the auxiliary air intake side. When the number of the first air inlet 211 and the number of the second air inlet 215 are equal, the overall air intake on the secondary air intake side can be smaller than the overall air intake on the main air intake side by controlling the opening size of the second air intake 215. Air intake.

The total opening area of each of the second air intakes 215 on the secondary air intake side is smaller than the total opening area of each of the first air intakes 211 on the main air intake side. Through the control of the total opening area, the number and size of the openings and the occupied space can be adjusted on the main intake side and the auxiliary intake side, so as to expand the flow area of the curved air path and enrich the distribution of the air path.

In an optional embodiment, two second air inlets 215 are distributed on the secondary air intake 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 side of the auxiliary air inlet can be made uniform, allowing the air at the corners of the atomization chamber to flow fully, and achieving more sufficient air flow in the atomization chamber.

Optionally, the first air inlets 211 and the second air inlets 215 are distributed centrally symmetrically with respect to the central axis. On the one hand, this distribution method makes the air intake volume of the main air intake side and the auxiliary air intake side significantly different, and on the other hand, makes the air intake volume of the main air intake side and the auxiliary air intake side itself uniform and balanced. Especially in the solution provided with multiple first air inlets and multiple second air inlets, the advantages of this embodiment can be more prominent.

Optionally, as shown in FIGS. 4-6 , two first air inlets 211 are distributed on the main air intake side, 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 arranged in a direction relative to the central axis c. Centrosymmetric distribution. The opening size of the second air inlet 215 is smaller than the opening size of the first air inlet 211 .

Optionally, as shown in Figures 4-6, the opening direction of the first air inlet 211 is perpendicular to the central axis c of the atomizing core assembly, the first air inlet 211 is completely opened horizontally, and the air flows laterally when entering the housing . 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 prematurely, so as to prevent the air from being fully mixed with the smoke. This solution preferably adopts the first air inlet 211 opened horizontally and the second air inlet 215 opened horizontally, so as to form a good curved air path and extend the air flow path.

Optionally, as shown in FIGS. 4-6 , the bottom of the lower cover 2 may be formed with an air intake duct 21 protruding into the housing 1 , and the air intake duct 21 communicates with the outside for air to flow in. The air intake duct 21 has a side wall and a top plate 214 , and at least a part of the first air intake 211 is provided on the side wall 213 of the duct. Utilizing the duct side wall 213, the first air inlet 211 conveniently has an opening direction that is substantially transverse or tends to the radial direction of the atomizing core assembly. Since a part of the air intake duct 21 protrudes into the housing 1 , the first air intake 211 can be directly and laterally opened on the side wall of the intake duct 21 . The curved gas path for realizing this scheme is an optimized realization.

Optionally, the air inlet pipe 21 itself may be coaxial with the central axis c, that is, the air inlet pipe 21 is at the center of the atomizing core assembly. In this way, being located at the first air inlet 211 can better realize the function of deflecting the airflow. Especially in the embodiment where the through hole 311 deviates from the central axis c, the length of the curved air path can be more effectively increased by using the intake pipe 21 .

In some optional embodiments, a small area 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 pipe side wall 213 so that the first air inlet 211 tends to open radially of the atomizing core assembly.

Optionally, as shown in FIGS. 4-6 , the first air inlet 211 may be completely opened on the side wall 213 of the duct, which is opened transversely. The position of the first air inlet 211 on the air inlet duct 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 duct 21 as a whole. An auxiliary notch 212 may be formed on 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 , as shown in FIGS. 4-6 , or it can be a semicircular notch. The auxiliary notch 212 does not make the first air inlet 211 open directly to the direction of the top plate 214 , that is, the auxiliary notch 212 does not make the first air inlet 211 open 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 avoids the flow path of the air, and the air can smoothly flow in an upward direction. In this way, the air can directly flow obliquely upward toward the side wall of the atomizing chamber 102, and the air can directly flow into the area filled with smoke. The auxiliary notch 212 serves to increase the direction of air diffusion, and can slightly change the direction of air flow. Compared with the top plate 214 without the auxiliary notch 212 , the use of the auxiliary notch 212 can prevent the top plate 214 from obstructing the oblique deflection of the air.

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 air can play the role of displacing the upper air so that it can be removed from the through hole as soon as possible. In this solution, it is possible to choose whether to use the auxiliary notch 212 according to the difference in actual application performance.

This solution also provides an electronic cigarette, as shown in FIG. 7 , the electronic cigarette includes a cigarette rod structure and the aforementioned cartridge structure. The atomizing core assembly includes a porous body 31 and a heating body 32 . The heating element 32 is arranged on the porous body 31 , and the heating element 32 is located at the lower end surface of the atomizing core assembly as a whole.

A connection is formed between the structure of the tobacco rod and the structure of the cartridge. Optionally, the cigarette rod structure can form a detachable connection relationship with the housing 1 and/or the lower cover 2 . There are electrical components in the structure of the cigarette rod, including batteries, circuit boards, chips and other devices. In a state where the cigarette rod structure is assembled and connected to the pod structure, the electrical components can be electrically connected to the heating element 32 through the electrical connector. The electrical connectors may be components such as conductive nails 5 and conductive shrapnel. The electrical components can be used to supply power to the heating element 32, so that the heating element 32 is heated to increase the temperature and time to atomize the e-liquid. Further, the electronic cigarette may also include an oil absorbing element 6 and a lower cover seal 7 .

According to an optional embodiment of the present disclosure, the porous body 31 is provided with a ventilating channel, and the ventilating channel passes through from the atomizing surface to the liquid absorbing surface.

According to an optional embodiment of the present disclosure, the ventilation channel is a ventilation hole opened on the porous body, and the ventilation hole and the through hole are spaced apart from each other on the porous body.

According to an optional embodiment of the present disclosure, the atomizing core assembly includes an atomizing core seal 4, and the atomizing core seal 4 is sleeved on the outside of the porous body 31; the atomizing core seal 4 is configured for The inner walls of the smoke housing 1 form a tight fit that is pressed against each other.

According to an optional embodiment of the present disclosure, the side surface of the porous body 31 is provided with a ventilation channel 301 , and the atomizing core seal 4 cooperates with the ventilation channel 301 to form a ventilation channel.

According to an optional embodiment of the present disclosure, there are two or more ventilation slots 301 .

According to an optional embodiment of the present disclosure, two or more ventilation slots are distributed on the side peripheral surface of the porous body 31 at intervals.

According to an optional embodiment of the present disclosure, there are two ventilation channels, and the two ventilation channels are arranged symmetrically on both sides of the porous body.

The ventilation channel is used to realize air pressure balance between the liquid storage chamber and the atomization chamber. The ventilation channel is in the edge area of the porous body, which facilitates the connection between the liquid storage chamber and the atomization 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 slot opened at the edge of the porous body.

Referring to FIG. 2 , the side of the porous body 31 may be provided with a ventilating channel 301 , and the ventilating channel 301 extends from the atomizing surface to the liquid absorbing surface.

When the atomizing core assembly in the embodiment of the present disclosure is applied to an electronic cigarette, the smoke oil penetrates from the liquid-absorbing surface to the atomizing surface through the porous body 31, so that the air pressure of the liquid storage chamber in the electronic cigarette decreases, and at the same time, the air Enter the atomization chamber from the air intake 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 channel 301, thereby effectively realizing the The air pressure balance between the smoke liquid storage chamber and the atomization chamber avoids the situation that it is difficult for the e-liquid to penetrate smoothly from the liquid absorption surface of the porous body 31 to the atomization surface, and prevents dry burning from affecting the taste of the user when smoking. When the atomizing core assembly in the embodiment of the present disclosure is applied to an electronic cigarette, the liquid in the liquid storage chamber of the electronic cigarette can smoothly penetrate from the liquid-absorbing surface of the porous body 31 to the atomizing surface, and the atomization of the atomizing surface The effect is good, and the user has a good taste in smoking.

Referring to FIG. 2 , in an optional embodiment, at least two ventilation slots 301 are provided. Only one ventilation channel 301 can be provided, and one ventilation channel 301 can perform ventilation for the liquid storage chamber and the atomization chamber of the electronic cigarette to maintain air pressure balance. In this specific example, setting at least two ventilation slots 301 can 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 symmetrically distributed with respect to the central axis c.

Referring to FIG. 2 and FIG. 8 , in an optional embodiment, the porous body 31 is an elliptical cylinder.

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 housing of the electronic cigarette, so that during assembly, the atomizing core assembly can better fit the inner wall of the housing of the electronic cigarette. On the other hand, the volume of the porous body 31 can be maximized under the condition of adapting to the shape of the housing of the electronic cigarette, so that the smoke liquid in the liquid storage chamber of the electronic cigarette can be absorbed more smoothly from the porous body 31. The liquid surface penetrates to the atomizing surface, thereby improving the atomizing efficiency of the porous body 31 and making the user's inhalation taste better.

Referring to FIG. 2 , in one embodiment, further, two ventilation channels 301 are provided, and the two ventilation channels 301 are respectively located at both ends of the long axis of the ellipse of the porous body 31 .

Ventilation channel 301 can also be arranged at other positions of porous body 31; Grooves 301 affect the strength of porous body 31 .

Referring to Fig. 1, in one embodiment, further, the through hole 311 is an elliptical hole, the ellipse minor axis of the atomization surface coincides with the ellipse minor axis of the through hole 311, and the ellipse major axis of the atomization surface is relative to the The major axis of the ellipse of the through hole 311 is shifted by a predetermined distance. The advantage of this embodiment is that the shape of the through hole 311 is similar to the shape of the inner wall of the oval porous body and the housing 1, and when components such as the outlet duct 11 are arranged, the space inside the housing 1 can be more fully utilized, and the Space utilization. Optionally, the through hole 311 may also be a circular hole. The processing of the round hole is difficult, and it is beneficial to improve the structural strength of the porous body 31 and improve the reliability of the pod structure.

The above-mentioned embodiments focus on the differences between the various embodiments. As long as the different optimization features of the various embodiments do not contradict each other, they can be combined to form a better embodiment. Considering the brevity of the text, no further repeat.

Although some specific embodiments of the present disclosure have been described in detail through examples, those skilled in the art should understand that the above examples are for illustration only, rather than limiting the scope of the present disclosure. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the present disclosure. The scope of the present disclosure is defined by the appended claims.

Claims (26)

A cartridge structure for electronic cigarettes, characterized in that it includes: A housing, an air outlet channel is formed on the housing, and a liquid storage chamber is provided in the housing; a lower cover, the lower cover is provided on the housing, and at least one first air inlet is formed at the bottom of the lower cover; An atomizing core assembly arranged in the casing, 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 seal with the inner wall of the casing Cooperating, a through hole is opened on the atomizing core assembly, and the upper end surface of the atomizing core assembly communicates with the liquid storage chamber; The atomizing 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 atomizing core assembly, so A curved air path is formed between the first air inlet and the through hole; The air outlet passage communicates with the first air inlet through the through hole. The cartridge structure for electronic cigarettes according to claim 1, wherein the curved air path is configured to deflect and/or rotate the air entering the casing from the first air inlet way to flow to the through hole. The cartridge structure for electronic cigarettes according to claim 2, wherein the atomizing core assembly includes a porous body and a heating element, the porous body has a liquid-absorbing surface and an atomizing surface, and the liquid-absorbing surface serves as The upper end surface of the atomizing core assembly, the atomizing surface serves as the lower end surface of the atomizing core assembly, the heating element is arranged on the atomizing surface, the liquid absorbing surface and the liquid storage chamber Form communication, and an atomization cavity is formed between the atomization surface and the lower cover; Air enters the atomization 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. The cartridge structure for electronic cigarettes according to claim 3, characterized in that, the curved air path makes the air flow into the casing laterally and deflect upward obliquely, and the air flows upwardly to the atomizing core assembly and is blocked and goes spread out, and then flow into the through hole through the suction effect at the through hole. The cartridge structure for electronic cigarettes according to claim 4, wherein the air diffuses downwards and then rotates in the casing and mixes with the original air and/or smoke in the casing. The cartridge structure for an electronic cigarette according to claim 3, wherein, relative to the central axis, the through hole is at a position offset to the first side of the central axis. The cartridge structure for an electronic cigarette according to claim 6, wherein, relative to the central axis, the heating element is at a position offset to the second side of the central axis. The cartridge structure for electronic cigarettes according to any one of claims 1 to 7, wherein the curved air path has a primary air intake side and a secondary air intake side, and the first air intake is located at On the main intake side, the intake air volume of the main intake side is greater than the intake air volume of the auxiliary intake side. The cartridge structure for electronic cigarettes according to claim 8, characterized in that, on the main air intake side, two first air intakes are opened on the lower cover. The cartridge structure for an electronic cigarette according to claim 8, wherein, relative to the central axis, the through hole is located at a position offset to the secondary air intake side. The cartridge structure for an electronic cigarette according to claim 8, wherein at least one second air inlet is formed on the lower cover, and the second air inlet is located on the secondary air inlet side. The cartridge structure for an electronic cigarette according to claim 11, wherein the opening aperture of the second air inlet is smaller than the opening aperture of the first air inlet. The cartridge structure for an electronic cigarette according to claim 11, wherein the number of the first air inlets is greater than or equal to the number of the second air inlets. The cartridge structure for an electronic cigarette according to claim 11, wherein 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. The cartridge structure for electronic cigarettes according to claim 11, characterized in that, on the secondary air intake side, there are two second air intakes distributed around the central axis. The cartridge structure for an electronic cigarette according to claim 11, wherein the first air inlet and the second air inlet are symmetrically distributed relative to the central axis. The cartridge structure for an electronic cigarette according to any one of claims 1 to 16, wherein the opening direction of the first air inlet is perpendicular to the central axis of the atomizing core assembly. The cartridge structure for electronic cigarette according to any one of claims 1 to 17, characterized in that, the bottom of the lower cover is formed with an air intake duct protruding into the housing, and the air intake duct has The pipe side wall and the top plate, at least a part of the structure of the first air inlet is opened on the pipe side wall. The cartridge structure for electronic cigarettes according to claim 3, wherein the porous body is provided with a ventilating channel, and the ventilating channel penetrates from the atomizing surface to the liquid absorbing surface. The cartridge structure for electronic cigarettes according to claim 19, wherein the ventilation channel is a ventilation hole opened on the porous body, and the ventilation hole is connected to the through hole set at intervals on the porous body. The cartridge structure for electronic cigarettes according to claim 19, wherein the atomizing core assembly includes an atomizing core seal, and the atomizing core seal is sleeved on the outside of the porous body; The atomizing core seal is configured to form a mutual pressing and sealing fit with the inner wall of the casing of the electronic cigarette. According to claim 21, the pod structure for electronic cigarettes is characterized in that, the side peripheral surface of the porous body is provided with a ventilation channel, and the atomizing core seal cooperates with the ventilation channel to form a the ventilation channel. The cartridge structure for electronic cigarettes according to claim 22, wherein there are two or more ventilation slots. The cartridge structure for electronic cigarettes according to claim 23, wherein the two or more ventilation slots are distributed on the side peripheral surface of the porous body at intervals. According to claim 24, the cartridge structure for electronic cigarettes is characterized in that there are two ventilation slots, and the two ventilation slots are arranged symmetrically on both sides of the porous body. An electronic cigarette, characterized in that it comprises: The cartridge structure according to any one of claims 1 to 25, wherein the atomizing core assembly includes a heating element, and the heating element is located at the lower end surface of the atomizing core assembly; A cigarette rod structure, the cigarette rod structure has an electrical component, the cigarette rod structure is connected to the cartridge structure, and the electrical component is configured to form an electrical connection with the heating element.

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