WO2023019715A1

WO2023019715A1 - Electronic cigarette and cartridge structure thereof

Info

Publication number: WO2023019715A1
Application number: PCT/CN2021/124771
Authority: WO
Inventors: 唐建国; 金奇斌; 卢音波
Original assignee: 比亚迪精密制造有限公司
Priority date: 2021-08-19
Filing date: 2021-10-19
Publication date: 2023-02-23
Also published as: CN115707403A

Abstract

An electronic cigarette and a cartridge structure thereof. The cartridge structure comprises: a shell (1), which is internally provided with a liquid storage cavity (101) and an atomization cavity (102). An atomization core is arranged in the shell (1), and comprises a porous body (31) and a heating body (32), wherein the porous body (31) has a liquid absorption face and an atomization face; the liquid absorption face is in communication with the liquid storage cavity (101); the heating body (32) is arranged on the atomization face; and the atomization face is in communication with the atomization cavity (102). The atomization core isolates the liquid storage cavity (101) from the atomization cavity (102). A lower cover (2) covers the shell, wherein the atomization cavity (102) is located between the atomization face and the bottom surface of the lower cover (2); and a tubular protrusion (22) facing the atomization face is formed on the bottom surface of the lower cover (2). The tubular protrusion (22) has a pipe sidewall (221) and a top end plate (222), the tubular protrusion (22) is internally provided with an air intake pipe (21) that is in communication with the outside, at least one air inlet is transversely provided in the pipe sidewall (221), and the air intake pipe (21) is in communication with the atomization cavity (102) by means of the air inlet.

Description

Electronic cigarette and its pod structure

This application claims the priority of the Chinese patent application with the application number 202110956563.8 and the application name "Electronic Cigarette and Its Pod Structure" submitted to the China Patent Office on August 19, 2021, the entire contents of which are incorporated into this application by reference .

technical field

The present application relates to the technical field of electronic cigarettes, and more specifically, relates to a cartridge structure for electronic cigarettes and an electronic cigarette having the cartridge structure.

Background technique

As a healthy and convenient consumer product, electronic cigarettes have been favored by consumers in recent years, and their use has become more and more popular. Electronic cigarettes generally include power components and atomizers. After the power supply component supplies power to the atomizer, the atomizer heats and atomizes the smoke liquid in the electronic cigarette, and the smoke liquid is transformed into mist and then inhaled by the user. When smoking e-cigarettes, users have a feeling similar to "puffing clouds" when smoking. In recent years, e-cigarettes have been favored by consumers for their convenience in smoking and low harm to the body.

In the prior art, the air inlet of the atomizer is usually set facing the atomizing surface of the atomizing core. Moreover, the electronic cigarette product has a compact and small shape design. Due to the above-mentioned design features, the opening area of the air inlet of the electronic cigarette is likely to be small, and the gas can only flow to the center of the atomization surface and mix with the smoke generated by the heating element located in the center. For the area away from the center of the atomization surface, the mixing degree of air and smoke is relatively uneven. As a result, the uniformity of the smoke produced by the electronic cigarette is limited, and the smoke is prone to be too thick or too light, and the user experience is poor.

Contents of the invention

One purpose of the present application is to provide a new technical solution for the cartridge structure of an electronic cigarette.

Another object of the present application is to provide an electronic cigarette.

According to the first aspect of the present application, there is provided an electronic cigarette atomization assembly, including: a casing, the casing has a liquid storage cavity and an atomization cavity; an atomization core, and the atomization core is arranged in the casing , the atomizing core includes a porous body and a heating element, the porous body has a liquid-absorbing surface and an atomizing surface, the liquid-absorbing surface communicates with the liquid storage cavity, and the heating element is arranged on the atomizing surface , the atomization surface communicates with the atomization cavity, the atomization core separates the liquid storage cavity from the atomization cavity; the lower cover is set on the housing, the The atomization chamber is located between the atomization surface and the bottom surface of the lower cover. A tubular protrusion facing the atomization surface is formed on the bottom surface of the lower cover. The tubular protrusion has a pipe side wall and a set On the top end plate of the pipe side wall which is close to the atomizing core and opposite to the atomizing surface, there is an air intake pipe communicating with the outside in the tubular protrusion, and a horizontal opening is opened on the pipe side wall. There is at least one air inlet, and the air inlet pipe communicates with the atomization chamber through the air inlet.

According to an embodiment of the present application, on the side wall of the duct, at least three of the air inlets are spaced around the axis of the tubular protrusion.

According to an embodiment of the present application, the air inlet is opened along the wall thickness direction of the side wall of the duct.

According to an embodiment of the present application, the air inlet is opened on the side wall of the duct at a position close to the top end plate.

According to an embodiment of the present application, at the position corresponding to the air inlet, an auxiliary notch is opened on the edge of the top end plate, the auxiliary notch communicates with the air inlet, and the auxiliary notch is configured For the air passing through the air inlet to diffuse in the atomizing chamber.

According to an embodiment of the present application, the top end plate is a flat plate structure; or, the top end plate is an arc-shaped surface whose central area protrudes toward the atomizing surface.

According to an embodiment of the present application, the tubular protrusion has a main air intake side and an auxiliary air intake side, and the overall opening area of the air intake on the main air intake side is larger than that of the air intake on the auxiliary air intake side. Overall opening area.

According to an embodiment of the present application, the number of the air intakes opened on the primary air intake side is greater than or equal to the number of the air intakes opened on the secondary air intake side.

According to an embodiment of the present application, the air inlet includes a first air inlet and a second air inlet, the first air inlet is located at the main air intake side, and the second air inlet is located at the On the secondary air intake side, the opening area of the second air intake is smaller than the opening area of the first air intake.

According to an embodiment of the present application, the air intake includes two first air intakes and two second air intakes; the two first air intakes are on the main air intake side Distributed at intervals around the axis of the tubular protrusion, the angle between the two first air inlets relative to the axis is less than or equal to 90°; the two second air inlets are at the auxiliary inlet The air side is distributed at intervals around the axis of the tubular protrusion, and the angle between the two second air inlets relative to the axis is less than or equal to 90°.

According to an embodiment of the present application, the tubular protrusion is located at the center of the bottom surface of the lower cover.

According to the second aspect of the present application, there is also provided an electronic cigarette, comprising: any one of the cartridge structures described above; and a cigarette rod structure, wherein the cigarette rod structure is detachably connected to the lower cover.

According to an embodiment of the present disclosure, outside air can diffuse from the side of the tubular protrusion to the atomization chamber, so that the gas can pass through the edge region of the atomization chamber, and the mixing uniformity of air and smoke can be improved.

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

Description of drawings

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

Figure 1 is a schematic cross-sectional view of the assembly structure of the pod used for electronic cigarettes provided by the present application;

Figure 2 is an exploded view of the cartridge structure used in electronic cigarettes provided by the present application;

Fig. 3 is a schematic diagram of the three-dimensional structure of the casing of the cartridge structure used in the electronic cigarette provided by the present application;

Fig. 4 is a schematic structural view of the casing of the pod structure for the electronic cigarette provided by the present application;

Fig. 5 is a schematic diagram of the three-dimensional structure of the lower cover of the pod structure used in the electronic cigarette provided by the present application;

Fig. 6 is a top view of the lower cover of the pod structure used in the electronic cigarette provided by the present application;

Fig. 7 is a partial cross-sectional view at an angle of the lower cover of the pod structure used in the electronic cigarette provided by the present application;

Fig. 8 is a cross-sectional view from another angle of the lower cover of the pod structure used in the electronic cigarette provided by the present application.

reference sign

1-shell; 11-outlet channel; 101-liquid storage chamber; 102-atomization chamber; 12-support rib;

2- lower cover;

21-intake channel; 211-first air inlet; 212-auxiliary gap; 213-second air inlet;

22-tubular protrusion; 221-pipe side wall; 222-top plate; 223-intake pipe;

31-porous body; 32-heating body;

4-atomizing core seal; 5-conductive nail; c-central axis.

Detailed ways

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

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

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

The structure of the cartridge for the electronic cigarette according to the embodiment of the present application will be described below with reference to the accompanying drawings.

According to an embodiment of the present disclosure, a cartridge structure for an electronic cigarette is provided. As shown in FIGS. 1 to 8 , the cartridge structure for electronic cigarettes includes a housing 1 , an atomizing core and a lower cover 2 .

The casing 1 has a liquid storage chamber 101 and an atomization chamber 102, and the liquid storage chamber 101 is used to accommodate liquids such as e-liquid.

The atomizing core is located in the housing 1 , and the atomizing core includes a porous body 31 and a heating element 32 disposed on the porous body 31 . The porous body 31 is used for infiltrating and absorbing e-liquid. The porous body 31 has a liquid absorbing surface and an atomizing surface. The liquid suction surface communicates with the liquid storage chamber 101 for contacting and absorbing the liquid in the liquid storage chamber 101 . The atomizing surface communicates with the atomizing chamber 102 . The atomizing core separates the liquid storage chamber 101 from the atomizing chamber 102 . The heating element 32 is located on the atomizing surface. The heating element 32 can emit heat under certain conditions, for example, when energized. The heat emitted by the heating element 32 can heat and atomize the smoke liquid in the porous body 31 that is conducted to the atomizing surface, and the formed smoke enters the atomizing chamber 102, and enters the air outlet channel 11 of the housing 1 through the atomizing chamber 102, thereby Ingested by users.

As shown in FIGS. 1 and 2 , a lower cover 2 is further provided on the housing 1 , that is, the lower cover 2 is disposed on the housing 1 . Wherein at least a part of the lower cover 2 can be plugged inside the housing 1 , or at least a part of the lower cover 2 can be sleeved outside the housing 1 , which is not limited here. Optionally, after the lower cover 2 is installed on the housing 1 , an atomization chamber 102 is formed in the area between the atomization surface and the lower cover 2 . The lower cover 2 can support the atomizing core. In an optional embodiment, the upper part of the casing 1 is provided with an air outlet channel 11 , and the lower part of the casing 1 has an opening. The lower cover 2 covers the opening of the casing 1 . That is, the atomization chamber 102 is located between the atomization surface and the bottom surface of the lower cover 2 . The atomization chamber 102 can be closed by setting the lower cover 2 .

As shown in FIG. 1 and FIG. 2 , a tubular protrusion 22 is formed on the bottom surface of the lower cover 2 facing the atomizing surface. The bottom surface of the lower cover 2 may be a surface opposite to the atomizing surface. In other words, a tubular protrusion 22 is provided between the bottom surface of the lower cover 2 and the atomizing surface. Tubular protrusion 22 may be a cylindrical member. In other embodiments, the tubular protrusion 22 may also be in the form of a truncated cone, or in the form of a rectangular protrusion or a trapezoidal protrusion. The interior of the tubular protrusion 22 has an air intake channel 21 communicating with the outside. One end of the tubular protrusion 22 along the axial direction is arranged on the bottom surface of the lower cover 2 , and the other end of the tubular protrusion 22 along the axial direction extends toward the direction of the atomizing surface.

As shown in FIG. 8 , the tubular protrusion 22 has a duct side wall 221 and a top end plate 222 . That is, the outer surface of the tubular protrusion 22 may include side surfaces and a top surface. Wherein the surface of the pipe side wall 221 corresponds to the side surface. The top end plate 222 corresponds to the top surface. Optionally, when the tubular protrusion 22 extends along the Z direction, the pipe side wall 221 extends along the Z direction, the lower end of the pipe side wall 221 is connected to the bottom surface of the lower cover 2, and the upper end of the pipe side wall 221 is arranged opposite to the atomizing surface . The top plate 222 is disposed on the upper end of the pipe side wall 221 and is disposed opposite to the atomizing surface. The top plate 222 may extend along the direction of the XY plane, or may be inclined relative to the XY plane.

As shown in FIG. 8 , the tubular protrusion 22 has an air intake duct 223 communicating with the outside. When the tubular protrusion 22 extends along the Z direction, the tubular protrusion 22 may be in a structure with an open bottom. Air can enter the tubular protrusion 22 from the lower end of the tubular protrusion 22 .

As shown in FIG. 7 , at least one air inlet is opened on the pipe side wall 221 , and the air inlet pipe 223 communicates with the atomization chamber 102 through the air inlet. An air inlet through the side wall is opened on the side wall of the tubular protrusion 22 . One end of the air inlet communicates with the atomization chamber 102 , and the other end of the air inlet communicates with the inside of the air inlet pipe 223 . The overall air flow path of the pod structure can be as follows: air enters the air intake duct 223 from the lower end of the tubular protrusion 22, and enters the atomization chamber 102 from the air intake duct 223 through the air inlet, and mixes with the smoke after entering the atomization chamber 102. The smoke mixed with the air flows out of the air outlet channel 11 and is finally inhaled by the user through the air outlet channel 11 .

By opening an air inlet on the pipe side wall 221 along its wall thickness direction, the extending direction of the air inlet can be substantially transverse or obliquely upward. This arrangement makes the gas in the intake duct 223 generally flow out of the intake port towards the side of the tubular protrusion 22 . That is, the outside air flows to the intake duct 223 along the first direction, deflects or bends in the intake duct 223 , passes along the second direction and flows out of the intake port. Subsequently, the air is diffused laterally from the air inlet to the tubular protrusion 22 , and spreads to the atomizing chamber 102 , so that the air and the smoke in the atomizing chamber 102 are more fully mixed.

In the embodiment of the present application, the air inlet is staggered from the central position of the atomizing surface, and corresponds to an area away from the central position on the atomizing surface. The meaning of the corresponding position here may be a position on the atomization surface facing the air inlet or a position on the atomization surface relatively close to the air inlet.

The air inlet in this application is set on the side wall 221 of the pipe, and the flow direction of the gas flowing out from the air inlet is different from the flow direction of the gas flowing into the air inlet pipe 223, so that the atomization chamber 102 can be located on the side of the tubular protrusion 22 The smoke in the area is well mixed with the gas. In this application, by dispersing the air from the side and extending it to the atomizing chamber 102, it is not only possible to avoid the dead angle of air circulation in the area other than the center of the atomizing surface, to fully mix the air and the smoke, but also to realize the control of the gas flowing through the mist. Control the area on the surface.

For example, for a variety of heat-generating areas with different shapes, by adjusting the position of the air inlet on the side wall 221 of the pipe, the gas can mainly flow to the position corresponding to the heat-generating area. The heating area on the atomizing surface is mainly formed by the heating element 32 . When at least a part of the heating element 32 deviates from the central position of the atomizing surface, the gas flowing out from the air inlet can also mainly flow to the location of the heating element 32 . It should be noted that, due to the higher temperature in the heating area, the rate at which the e-liquid is heated into an aerosol is also faster. By making the gas flow to the heating area, the outside air can quickly mix with the smoke generated by the heating element 32 and quickly flow to the air outlet channel 11 of the housing 1 .

In addition, the number of air inlets is at least one. When the number of the air inlet is one, the air inlet can be set correspondingly to the heating area. When the number of air inlets is multiple, such as 2, 3, or more than 4, the total number of air inlets is not limited here to be an odd number or an even number, nor is it limited whether the centers of multiple air inlets Located on the same horizontal plane, it is not limited that the multiple air inlets are arranged symmetrically or asymmetrically. By increasing the number of air inlets, not only can the diversion of the airflow be realized, but also it is beneficial to design more diverse heat-generating areas, ensuring the uniformity of gas mixing with multiple positions in the heat-generating areas.

In addition, in the embodiment of the present application, when the airflow enters the air intake duct 223 , it will be blocked by the top plate 222 . Then, the airflow flows into the atomization chamber 102 from the air inlet sideways. This air path layout will not cause the air flow to generate obvious eddy currents, and the air flow can flow into the atomizing chamber 102 in a relatively moderate state, and the collision and vibration sound of the walls of the surrounding parts is small. That is to say, the pod structure of the present application can significantly improve the noise problem generated when the user smokes.

In this embodiment, the pod structure used for electronic cigarettes, the outside air can diffuse from the side of the tubular protrusion 22 to the atomizing core, so that the gas can pass through the area in the atomizing chamber 102 away from the center of the atomizing surface , Improve the mixing uniformity of air and smoke. In addition, by opening the air inlet laterally on the side wall 221 of the pipe, the noise generated by the user when inhaling can be significantly improved.

In one embodiment, as shown in FIG. 5 , at least three air inlets are arranged at intervals around the axis of the tubular protrusion 22 on the duct side wall 221 .

In this embodiment, the air can enter from the air inlet pipe 223 and flow out from any one of the three air inlets to the atomizing chamber 102 . By setting more than three air inlets, on the one hand, the volume of air entering the atomization chamber 102 per unit time can be increased by increasing the number of air inlets; The mixing area of smoke and air in the atomization chamber 102 . For example, the tubular protrusion 22 extends along the Z direction, and three air inlets are arranged on the tubular protrusion 22, and the three air inlets may be distributed around the Z axis at intervals. The gas in the intake pipe 223 can flow out from each intake port at the same time.

In one embodiment, as shown in FIG. 5 and FIG. 7 , the air inlet is opened along the transverse direction of the tubular protrusion 22 , that is, the extending direction of the air inlet is perpendicular to the direction of the tubular protrusion 22 . Z direction, which extends in the transverse direction. The horizontally arranged air inlets can better improve the uniform mixing degree of the air entering the atomizing chamber 102 and the smoke. Moreover, the flow path of the air in the atomizing chamber 102 can be extended to achieve the purpose of sufficient mixing.

In one embodiment, as shown in FIG. 7 , the air inlet is opened on the side wall 221 of the duct near the top end plate 222 .

In this embodiment, the air inlet is opened on the side wall 221 of the duct and is relatively close to the end of the side wall 221 of the duct. For example, the duct side wall 221 extends along the Z direction, the top end plate 222 is located at the upper end of the duct side wall 221 , and the air inlet is opened on the upper portion of the duct side wall 221 and close to the top end plate 222 . Optionally, the air inlet is opened on the upper edge of the pipe side wall 221 . By setting the air inlet at the position near the top end plate 222 on the side wall 221 of the pipe, the air inlet can be made closer to the central area of the atomization chamber 102 as a whole, and the air flowing into the atomization chamber 102 from the air inlet can flow to the surroundings. flow, and better flow to each area of the atomization chamber 102, so that the air and the smoke in the atomization chamber 102 are uniformly mixed.

In one embodiment, as shown in FIG. 5 and FIG. 7 , at the position corresponding to the air inlet, an auxiliary notch 212 is opened on the edge of the top end plate 222, and the auxiliary notch 212 is connected to the air inlet, and the auxiliary notch 212 is It is configured for the air passing through the air inlet to diffuse in the atomizing chamber 102 .

In one embodiment of the present application, as shown in FIG. 7 , the position of the air inlet on the tubular protrusion 22 is close to the top plate 222 , that is, the air inlet is relatively close to the top of the tubular protrusion 22 as a whole. An auxiliary notch 212 may be formed on the edge of the top end plate 222 , and the position of the auxiliary notch 212 corresponds to the position of the first air inlet 211 . The auxiliary notch 212 may be a rectangular notch formed on the top plate, as shown in FIG. 5 , or may be a semicircular notch. The auxiliary notch 212 does not make the air inlet directly open to the direction of the top plate 222 , that is, the auxiliary notch 212 does not make the air inlet open upward. The function of the auxiliary notch 212 is that after the air enters the atomizing chamber 102 from the air inlet laterally, 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 222 without the auxiliary notch 212, the use of the auxiliary notch 212 can prevent the top plate from obstructing the oblique deflection of the air. Using the auxiliary gap 212 can adjust the degree of mixing between different positions on the atomization chamber 102 and the gas, further improving the mixing uniformity of the gas and the smoke.

In one embodiment, the top plate 222 is a flat plate structure; or, as shown in FIG. 8 , the top plate 222 is an arc-shaped surface whose central area protrudes toward the atomizing surface.

In this embodiment, the top end surface may be a flat plate structure or an arc-shaped surface. When the top end surface is a flat plate structure, the top end plate 222 may be a flat plate extending along the XY plane, or a flat plate inclined relative to the XY plane, which is not limited herein. When the top plate 222 is an arc-shaped plate, that is, the end surface of the top end plate 222 facing the atomizing surface is an arc-shaped surface. The curved surface may be convex toward the atomizing surface. The edge of the arc surface can be abutted with the side wall 221 of the pipe. By limiting various forms of the top end plate 222, the application range of the top end plate 222 can be expanded, and can be used in various types of pod structures.

In addition, when the top plate 222 is a flat plate, an auxiliary notch 212 communicating with the air inlet may be formed on the edge of the top plate 222 . Specifically, it may be provided in the connection area between the top plate 222 and the pipe side wall 221 . Since the top plate 222 is a planar structure, the auxiliary notch 212 disposed on the top plate 222 can extend along the plane. When the top plate 222 is an arc surface, the auxiliary notch 212 can also be provided at the edge of the arc surface. Since the arc surface has a certain curvature, the auxiliary notch 212 provided on the top plate 222 can extend along the arc surface.

In one embodiment, the tubular protrusion 22 has a primary air intake side and a secondary air intake side. When the tubular protrusion 22 is provided with multiple air intakes, and the multiple air intakes are distributed on the vertical When it is on both sides of the axial direction, the overall opening area of the air inlet distributed on both sides is different. The main air inlet side is the side with the larger overall opening area of the air inlet, and the auxiliary air inlet side is the air inlet side. The side where the overall opening area of the port is smaller, that is, the overall opening area of the intake port on the primary intake side is larger than the overall opening area of the intake port on the secondary intake side.

In this embodiment, the overall opening area may be the sum of the areas of each air inlet on one side. For example, the overall opening area of the intake ports on the main intake side may be the sum of the opening areas of each intake port on the main intake side. Likewise, the overall opening area of the air inlets on the secondary air intake side may be the sum of the opening areas of each air intake port on the auxiliary air intake side. That is to say, in a unit time, the amount of gas flowing out from the main intake side is greater than the amount of gas flowing out from the auxiliary intake side. When the heating element 32 is arranged, the heating element 32 can be directly facing or relatively close to the main air intake side. It should be noted that, by setting the auxiliary air intake side, a certain amount of gas can pass through the area far away from the heating element 32 in the atomization chamber 102, so as to avoid the formation of dead air flow near the area on the atomization surface far away from the heating element 32. This results in poor airflow, which in turn leads to uneven mixing of air and smoke.

In one embodiment, the number of air inlets on the primary air intake side is greater than or equal to the number of air inlets on the secondary air intake side.

In this embodiment, the number of air inlets opened on the primary air intake side may be N1, and the number of air inlets opened on the secondary air intake side may be N2. In this embodiment, the size relationship between the opening area of the single intake port on the primary intake side and the opening area of the single intake port on the secondary intake side may not be limited. For example, when the average opening area S1 of the intake ports on the main intake side is smaller than the average opening area S2 of the intake ports on the secondary intake side, S1*N1>S2*N2. By limiting the number of air inlets on the main air intake side to be greater than the number of air inlets on the auxiliary air intake side, it is beneficial to ensure that the amount of gas on the main air intake side is greater than that on the auxiliary air intake side within a unit time. amount of gas.

In one embodiment, as shown in FIG. 5 , the air inlet includes a first air inlet 211 and a second air inlet 213, the first air inlet 211 is located on the main air intake side, and the second air inlet 213 is located on the auxiliary air inlet side. On the air intake side, the opening area of a single second air intake 213 is smaller than the opening area of a single first air intake 211 .

Since the opening area of a single first air inlet 211 is greater than that of a single second air inlet 213, the volume of gas flowing out from the main air inlet side is greater than that of the gas flowing out from the auxiliary air inlet side in a unit time. volume. That is, when the air inlet pipe 223 flows out through the air inlet, the volume of gas flowing out from the first air inlet 211 is greater than the volume of gas flowing out from the second air inlet 213 within a unit time. Therefore, the amount of gas flowing from the main air intake side to the corresponding position of the atomizing chamber 102 within a unit time is increased.

In one embodiment, as shown in FIG. 5 , the air inlets include two first air inlets 211 and two second air inlets 213 . The four air inlets are divided into two first air inlets 211 and two second air inlets 213 . The opening area of a single first air inlet 211 is greater than the opening area of a single second air inlet 213 . That is, the total area of the two first air inlets 211 is larger than the opening area of the two second air inlets 213 . During the same time period, the volume of gas flowing out from the two first gas inlets 211 is greater than the volume of gas flowing out from the two second gas inlets 213 .

The two first air inlets 211 are distributed at intervals around the axis of the tubular protrusion 22 on the main air inlet side, and the angle between the two first air inlets 211 relative to the axis is less than or equal to 90°.

By arranging two first air inlets 211 on the main air intake side, the volume of gas flowing from the main air intake side to the atomization chamber 102 can be increased within the same period of time. During setting, the two first air inlets 211 may be spaced apart and distributed. By distributing the two first air inlets 211 at intervals, the gas flowing from the main air inlet side to the atomizing chamber 102 can be made more uniform and moderate on the basis of increasing the air intake per unit time.

In addition, two first air inlets 211 are distributed at intervals around the axis of the tubular protrusion 22 . For example, when the tubular protrusion 22 extends along the Z direction, the two first air inlets 211 are distributed at intervals around the Z axis, which is beneficial to reduce the control of the first air inlet when two first air inlets 211 are opened on the main air inlet side. The difficulty of the position of the port 211 is conducive to the realization of mass production.

On the basis that the two first air inlets 211 are distributed at intervals around the axis of the tubular protrusion 22 , the angle between the two first air inlets 211 relative to the axis is less than or equal to 90°. That is, the angle between the two first air inlets 211 relative to the axis may be 90° or less than 90°.

When calculating the angle between the two first air inlets 211 relative to the axis, a virtual line can be connected between the center position of each first air inlet 211 and the axis, and the virtual line is perpendicular to the axis. The included angle between the two imaginary lines is the included angle between the two first air inlets 211 relative to the axis. In addition, when the first air inlet 211 has a regular shape, the center position of the first air inlet 211 may be the geometric center of the first air inlet 211 . When the first air inlet 211 has an irregular shape, the center position of the first air inlet 211 may be the center of gravity of a virtual plane that completely fills the first air inlet 211 .

When the angle between the two first air inlets 211 relative to the axis is less than 90°, for example, the angle between the two first air inlets 211 relative to the axis is 15°, 30°, 45° or 60°, The two first air inlets 211 are closer to each other, so that the gas flowing out from the main air inlet side can be more concentrated.

The two second air inlets 213 are distributed at intervals around the axis of the tubular protrusion 22 on the auxiliary air inlet side, and the angle between the two second air inlets 213 relative to the axis is less than or equal to 90°. The positions and mutual relations of the two second air inlets 213 on the auxiliary air intake side are similar to the positions and mutual relations of the two first air inlets 211 on the main air intake side, and will not be repeated here.

It should be noted that the two first air inlets 211 and the two second air inlets 213 are independent of each other. For example, when the angle between the two first air inlets 211 relative to the axis is less than 90°, the angle between the two second air inlets 213 relative to the axis is less than 90° or equal to 90°. Likewise, when the angle between the two first air inlets 211 relative to the axis is equal to 90°, the angle between the two second air inlets 213 relative to the axis is less than 90° or equal to 90°. By arranging the two first air inlets 211 and the two second air inlets 213 independently of each other, it is beneficial to improve the diversity of the positions of the first air inlets 211 and the second air inlets 213, which can be based on actual product requirements. Flexible adjustment.

Wherein, when the angle between the two first air inlets 211 relative to the axis is 90°, and the angle between the two second air inlets 213 relative to the axis is 90°, the two first air inlets The angle between any one of the two second air inlets 213 and the adjacent second air inlet 213 with respect to the axis is also 90°, and any one of the two second air inlets 213 and the adjacent first air inlet The angle at which the openings 211 are spaced relative to the axis is also 90 degrees. For example, when the axis extends along the Z axis and the centers of the two first air inlets 211 and the centers of the two second air inlets 213 are located on the XY plane at the same time, one first air inlet 211 and one second air inlet The port 213 can be located on the X-axis, the other first air inlet 211 and the other second air inlet 213 can be located on the Y-axis, and the origin of the intersection point of the X-axis and the Y-axis is the location of the axes.

In this embodiment, four air inlets are provided and divided into two first air inlets 211 and two second air inlets 213 . After the outside air enters the air inlet pipe 223, most of the gas flows from the first air inlet 211 to the area corresponding to the atomization surface, and a small part of the gas flows from the second air inlet 213 to the area corresponding to the atomization surface. The heating element 32 can be mainly disposed on the area of the atomization surface corresponding to the first air inlet 211 . The meaning of corresponding here can be opposite or relatively close. For the convenience of description, the atomization surface can be divided into A region and B region. Wherein, the heating element 32 is mainly located in the A region. The first air inlet 211 is closer to the A area. The second air inlet 213 is closer to the B area. Most of the gas entering the air inlet pipe 223 flows to the A region through the first air inlet 211 , can quickly mix with the aerosol formed in the A region, and flow to the air outlet channel 11 to be inhaled by the user. A small part of the gas flows to the B area through the second air inlet 213, so as to avoid the formation of air dead angle in the B area.

In one embodiment, as shown in FIG. 6 , the tubular protrusion 22 is located at the center of the bottom surface of the lower cover 2 .

In this embodiment, when the bottom of the bottom cover 2 is a homogeneous object, the center of the bottom surface is the geometric center of the bottom surface. When the bottom of the bottom cover 2 is an object with uneven mass distribution, the center of the bottom surface is the center of gravity of the bottom surface. By arranging the tubular protrusion 22 at the center of the bottom surface of the lower cover 2, it is not only beneficial to the processing and setting of the tubular protrusion 22, but also beneficial to the overall symmetrical structure of the cartridge structure, which improves the aesthetic appearance. In addition, when assembling the lower cover 2 and the housing 1, it is beneficial to quickly insert the tubular protrusion 22 into the atomizing chamber 102, and it is beneficial to define the position between the tubular protrusion 22, the air inlet and the atomizing core. relation.

In one embodiment, as shown in FIG. 1 and FIG. 2 , the lower cover 2 is further equipped with a conductive nail 5 , and the conductive nail 5 can conduct with the battery assembly to provide electric energy for the heating element 32 . In an optional embodiment, the number of conductive nails 5 is two. The tubular protrusion 22 can be located in the middle of the line connecting the two conductive nails 5 .

In one embodiment, as shown in FIG. 1 and FIG. 2 , support ribs 12 are provided in the casing 1 . The supporting ribs 12 can extend along the length direction of the casing 1 . The supporting ribs 12 and the lower cover 2 respectively form a limiting contact with the atomizing core from the upper and lower sides of the atomizing core. Alternatively, on the premise that the outer periphery of the atomizing core is provided with a sealing core seal, the support rib 12 and the lower cover 2 respectively form a limiting contact with the atomizing core seal 4 from the upper and lower sides of the atomizing core seal 4 . In this way, the atomizing core can be positioned reliably and stably. There is no need to arrange other related structures for fixing the atomizing core between the housing 1 and the lower cover 2, which simplifies the internal structure of the electronic cigarette.

Compared with the prior art, in this embodiment, the middle cover, the upper cover and the sealing ring of the upper cover are eliminated, the parts in the atomization chamber 102 are reduced, and the space of the atomization chamber 102 is enlarged. In an optional embodiment, there are only the lower cover 2 and the conductive nail 5 in the atomizing chamber 102 of the present application. When the air flow flows into the atomizing chamber 102, it is not subjected to collision and vibration of many parts, which can further improve user experience. Noise problems when pumping.

The present application also provides an electronic cigarette. The electronic cigarette includes the aforementioned pod structure and cigarette rod structure. The cigarette rod structure is detachably connected with the lower cover 2 . The electronic cigarette also includes electrical components, which are electrically connected to the heating body 32 , and the electrical components are configured to supply power to the heating body 32 .

The pod structure atomizes liquid substrates such as e-liquid to generate aerosol (smoke), and the air in the atomization chamber 102 and the smoke generated by heating and atomizing the heating element 32 can be exported through the air outlet channel 11 after mixing. The liquid base can be e-liquid such as e-liquid, and the e-liquid can be atomized by the pod structure to generate smoke.

All in all, the pod structure for electronic cigarettes according to the embodiment of the present application and the electronic cigarette with the pod structure can provide support for heating areas of various shapes, and quickly lead out the smoke generated in the heating area through the outlet channel 11 , to provide users with a better suction experience.

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

Claims

A cartridge structure for electronic cigarettes, characterized in that it includes:

A housing, the housing has a liquid storage chamber and an atomization chamber;

An atomizing core, the atomizing core is arranged in the housing, the atomizing core includes a porous body and a heating element, the porous body has a liquid absorbing surface and an atomizing surface, the liquid absorbing surface and the storage The liquid chamber is connected, the heating element is arranged on the atomization surface, the atomization surface is connected to the atomization chamber, and the atomization core separates the liquid storage chamber from the atomization chamber;

A lower cover, the lower cover is set on the housing, the atomization chamber is located between the atomization surface and the bottom surface of the lower cover, and the bottom surface of the lower cover is formed with a A tubular protrusion on the atomization surface, the tubular protrusion has a pipe side wall and a top end plate arranged at one end of the pipe side wall close to the atomization core and opposite to the atomization surface, the tubular protrusion There is an air inlet pipe in communication with the outside, and at least one air inlet is opened on the side wall of the pipe, and the air inlet pipe communicates with the atomization chamber through the air inlet.
The cartridge structure for electronic cigarettes according to claim 1, characterized in that at least three of the air inlets are arranged at intervals around the axis of the tubular protrusion on the side wall of the duct.
The cartridge structure for an electronic cigarette according to claim 1 or 2, wherein the air inlet is opened along the wall thickness direction of the side wall of the pipe.
The cartridge structure for an electronic cigarette according to any one of claims 1 to 3, wherein the air inlet is opened on the side wall of the duct at a position close to the top end plate.
The cartridge structure for electronic cigarettes according to claim 4, characterized in that, at the position corresponding to the air inlet, an auxiliary notch is opened on the edge of the top end plate, and the auxiliary notch communicates with the The air inlet and the auxiliary notch are configured to allow the air passing through the air inlet to diffuse in the atomizing chamber.
The cartridge structure for an electronic cigarette according to any one of claims 1 to 5, wherein the top plate is a flat plate structure;

Alternatively, the top plate is an arc-shaped surface with a central area protruding toward the atomizing surface.
The cartridge structure for electronic cigarettes according to any one of claims 1 to 6, wherein the tubular protrusion has a main air intake side and an auxiliary air intake side, and the air intake side of the main air intake side The overall opening area of the gas port is larger than the overall opening area of the air inlet on the secondary air intake side.
The cartridge structure for electronic cigarettes according to claim 7, wherein the number of the air inlets opened on the main air intake side is greater than or equal to the number of the air intakes opened on the secondary air intake side. The number of air inlets.
The cartridge structure for electronic cigarettes according to claim 7, wherein the air inlet includes a first air inlet and a second air inlet, and the first air inlet is located at the main inlet. On the air side, the second air inlet is located on the secondary air inlet side, and the opening area of the second air inlet is smaller than that of the first air inlet.
The cartridge structure for electronic cigarettes according to claim 9, wherein the air inlets include two first air inlets and two second air inlets;

The two first air inlets are distributed at intervals around the axis of the tubular protrusion on the main air inlet side, and the angle between the two first air inlets relative to the axis is less than or equal to 90° °;

The two second air inlets are distributed at intervals around the axis of the tubular protrusion on the secondary air intake side, and the angle between the two second air inlets relative to the axis is less than or equal to 90° °.
The cartridge structure for an electronic cigarette according to any one of claims 1 to 10, wherein the tubular protrusion is located at the center of the bottom surface of the lower cover.
An electronic cigarette is characterized in that it comprises:

The cartridge structure according to any one of claims 1-11;

The cigarette rod structure is detachably connected with the lower cover.