Cigarette cartridge and electronic cigarette
By designing the oil outlet structure and flow restriction design that connects the oil storage chamber to the core chamber in the electronic cigarette, the problem of oil leakage in the oil storage chamber is solved, better oil supply control and atomization effect are achieved, and the use experience of the electronic cigarette is improved.
Patent Information
- Application Number
- CN202510755542.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-06
- Publication Date
- 2025-08-19
AI Technical Summary
The existing electronic cigarette oil storage tanks are prone to oil leakage, resulting in insufficient inhalation of oil droplets and atomization, especially in high altitude, low pressure, high temperature and high humidity environments.
A smoke cartridge structure is designed, in which the oil storage chamber surrounds the outer periphery of the core chamber and communicates with the core chamber through an oil outlet. The atomized core includes a heating element and an oil conducting cotton. The oil conducting cotton covers the oil outlet, and the heating part of the heating element faces the cover part; and a flow-limiting structure can be optionally equipped to control the oil flow and gas flow.
Effectively reduce oil leakage, ensure timely oil supply of oil guide cotton, avoid atomizing core paste core, improve atomization effect, reduce bubble clogging, and improve user experience.
Smart Images
Figure CN120501264A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of electronic atomization, and in particular to a cigarette cartridge and an electronic cigarette. Background Art
[0002] The core component of an e-cigarette is the cartridge. This cartridge typically includes an atomizer core and a liquid reservoir. Generally speaking, the atomizer core houses a heating element and liquid-conducting cotton. The liquid reservoir provides liquid to the liquid-conducting cotton. The heating element, through heat, atomizes the oil in the liquid-conducting cotton into an inhalable vapor for the user.
[0003] In the related art, there are many cases of oil leakage in the oil storage tank. For example, when the oil is used again after being placed for a period of time, it is found that oil is leaking out of the oil storage tank. Therefore, it is easy for users to inhale large particles of oil droplets or insufficient atomization will result in aerosol particles, making the aerosol taste extremely bad; in addition, in high altitude, low pressure, high temperature and high humidity environments, the oil inside the oil storage tank is easily squeezed out, resulting in oil leakage.
[0004] Therefore, there is an urgent need to provide a cigarette cartridge and an electronic cigarette in order to improve the anti-leakage effect thereof. Summary of the Invention
[0005] Based on this, it is necessary to provide a cigarette cartridge and an electronic cigarette to address the existing problems in order to improve the anti-leakage effect thereof.
[0006] The first aspect of the present application provides a cigarette cartridge comprising:
[0007] The oil storage tank comprises a core cavity, an oil storage cavity and an oil outlet, wherein the oil storage cavity is connected with the core cavity through the oil outlet, and the oil storage cavity surrounds the outer circumference of the core cavity;
[0008] An atomizer core is inserted into the core cavity, and the atomizer core includes a heating element and oil-conducting cotton attached to the heating element;
[0009] The oil-conducting cotton includes a covering portion for sealing the oil outlet, and the heating element includes a heating portion. In the opening direction of the oil outlet, the heating portion faces the covering portion.
[0010] In some embodiments, the oil outlet is a square hole or a circular hole; and / or the flow area of the oil outlet is 2.6 mm 2 ~25mm 2 .
[0011] In some embodiments, the cigarette cartridge further includes a flow limiting structure, which includes a flow limiting wall portion located in the oil storage chamber, the flow limiting wall portion covers the oil outlet, and at least one conducting hole connected to the oil outlet is opened in a part of the flow limiting wall portion, and the total flow area of the conducting hole is smaller than the flow area of the oil outlet.
[0012] In some embodiments, the core cavity is a through-hole structure extending along a first direction, the first direction is perpendicular to the opening direction, and the number of the through-holes is at least two;
[0013] Wherein, at least two of the through holes are arranged at intervals in the circumferential direction of the core cavity; and / or, at least two of the through holes are arranged at intervals in the axial direction of the core cavity.
[0014] In some embodiments, the oil storage tank comprises:
[0015] The housing comprises an oil storage tank having a first opening and a gas passage separated from the oil storage tank, wherein the first opening opens in a first direction, and the gas passage extends along the first direction and penetrates the oil storage tank;
[0016] a cannula assembly, one end of which is plugged into the gas passage and sealed with the gas passage; the cannula assembly includes the core cavity; the atomizing core is inserted into the core cavity of the cannula assembly; and the oil outlet is provided in the cannula assembly;
[0017] A plug assembly, the other end of the insert tube assembly is plugged into the plug assembly and sealed with the plug assembly, and the plug assembly and the insert tube assembly cooperate to cover the first opening to cooperate with the oil storage tank to define the oil storage cavity.
[0018] In some embodiments, the cannula assembly comprises:
[0019] a sealing tube, one end of which is sealed and plugged into the gas channel;
[0020] The inner tube fitting, the other end of the sealing tube is inserted into one end of the inner tube fitting and sealed with the inner tube fitting, the inner cavity of the inner tube fitting is the core cavity, the oil outlet is opened in the inner tube fitting, and the other end of the inner tube fitting is sealed and inserted into the plug assembly.
[0021] In some embodiments, at least one air inlet channel is opened in the tube wall of the inner tube, the air inlet channel is communicated with the oil outlet, and the air inlet channel is covered by the sealing tube.
[0022] In some embodiments, the cannula assembly comprises:
[0023] an outer tube, one end of which is sealed and plugged into the gas channel, and the other end of which is sealed and plugged into the plug assembly, the outer tube including the flow limiting structure;
[0024] The inner pipe is inserted into the outer pipe, the inner cavity of the inner pipe is the core cavity, and the oil outlet is opened in the inner pipe.
[0025] In some embodiments, at least one air inlet channel is formed in the wall of the inner tube, the air inlet channel is communicated with the oil outlet, and the air inlet channel is covered by the outer tube.
[0026] A second aspect of the present application provides an electronic cigarette, which includes the cigarette cartridge described in any one of the above embodiments.
[0027] Beneficial effects of the present invention:
[0028] In the cartridge-based electronic cigarette provided in an embodiment of the present invention, the cartridge includes an oil storage tank and an atomizer core. The oil storage tank includes a core cavity, an oil storage cavity, and an oil outlet. The oil storage cavity is connected to the core cavity through the oil outlet. The oil storage cavity surrounds the outer circumference of the core cavity, resulting in a compact structure. The atomizer core is inserted into the core cavity and includes a heating element and oil-conducting cotton attached to the heating element. The oil-conducting cotton includes a covering portion that seals the oil outlet. The heating element includes a heating portion, and the heating portion faces the covering portion in the direction of the oil outlet opening. The oil storage chamber and the core chamber are connected through an oil outlet, that is, oil is guided to the atomizer core through each oil outlet. The oil guide cotton includes a covering portion that covers the oil outlet. In the direction of the opening of the oil outlet, the heating portion faces the covering portion. Therefore, when the heating portion of the heating element is operating, the oil outlet transmits oil to the oil guide cotton, which improves the timeliness of oil supply to the oil guide cotton and prevents the atomizer core from sticking. Since the oil storage chamber has only one oil outlet for supplying oil to the oil guide cotton, it can prevent oil from flowing into the oil guide cotton from the direction away from the oil outlet, thereby alleviating oil leakage. When the heating portion of the heating element is not operating, since there is only one oil outlet for supplying oil, when the oil guide cotton is saturated, an oil film forms on its surface, which can prevent or slow down the further flow of oil to the oil guide cotton, thereby reducing oil leakage. In addition, although outside air can enter the oil storage chamber through the oil outlet, when not in use, the oil guide cotton is saturated, and the oil film formed on the oil guide cotton can prevent air from entering the oil storage chamber, which helps to reduce oil leakage. BRIEF DESCRIPTION OF THE DRAWINGS
[0029] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only one embodiment of the present invention. For ordinary technicians in this field, without paying any creative work, they can also obtain drawings of other embodiments based on these drawings.
[0030] Figure 1 A schematic perspective view of a cigarette cartridge provided in some embodiments of the present invention;
[0031] Figure 2 A schematic cross-sectional view of a cigarette cartridge provided in some embodiments of the present invention;
[0032] Figure 3A schematic diagram of disassembling a cigarette cartridge provided in some embodiments of the present invention;
[0033] Figure 4 Schematic cross-sectional views of cigarette cartridges provided in other embodiments of the present invention;
[0034] Figure 5 Schematic diagram of disassembly of cigarette cartridges provided in other embodiments of the present invention;
[0035] Figure 6 This is a schematic diagram of the matching structure of an outer pipe fitting and an inner pipe fitting of the present invention;
[0036] Figure 7 This is a schematic diagram of the matching structure of another outer pipe and inner pipe of the present invention.
[0037] Reference numerals:
[0038] X, first direction;
[0039] 1. Oil storage tank; 11. Housing; 111. Oil storage tank; 112. Gas passage; 12. Insert assembly; 121. Sealing tube; 122. Inner pipe; 1221. Oil outlet; 1222. Core cavity; 1223. Air inlet channel; 123. Outer pipe; 1231. Guide hole; 13. Plug assembly; 14. Oil storage cavity;
[0040] 2. Atomizer core; 21. Heating element; 211. Heating part; 22. Oil-guiding cotton; 221. Covering part. DETAILED DESCRIPTION
[0041] To make the above-mentioned objects, features, and advantages of the present invention more readily apparent, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following description sets forth numerous specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0042] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.
[0043] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.
[0044] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.
[0045] In the present invention, unless otherwise expressly specified or limited, a feature "above" or "below" a second feature may be in direct contact with the second feature, or in indirect contact with the second feature through an intermediary. Furthermore, "above," "above," and "above" a feature may mean that the feature is directly above or diagonally above the second feature, or simply means that the feature is at a higher level than the second feature. "below," "below," and "below" a feature may mean that the feature is directly below or diagonally below the second feature, or simply means that the feature is at a lower level than the second feature.
[0046] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.
[0047] See also Figure 1-3Some embodiments of the present application provide a cigarette cartridge, which includes an oil storage tank 1 and an atomizer core 2. The oil storage tank 1 includes a core cavity 1222, an oil storage cavity 14 and an oil outlet 1221. The oil storage cavity 14 is connected to the core cavity 1222 through the oil outlet 1221, and the oil storage cavity 14 surrounds the outer circumference of the core cavity 1222; the atomizer core 2 is inserted into the core cavity 1222, and the atomizer core 2 includes a heating element 21 and oil-guiding cotton 22 attached to the heating element 21; wherein the oil-guiding cotton 22 includes a covering portion 221 that covers the oil outlet 1221, and the heating element 21 includes a heating portion 211. In the opening direction of the oil outlet 1221, the heating portion 211 faces the covering portion 221.
[0048] The advantages of the cigarette cartridges provided in some embodiments of the present application are that: the oil storage chamber 14 surrounds the outer periphery of the core chamber 1222, and the structure is compact; the oil storage chamber 14 is connected to the core chamber 1222 through an oil outlet 1221, that is, the oil is guided to the atomizer core 2 through an oil outlet 1221, and the oil-guiding cotton 22 includes a covering portion 221 that covers the oil outlet 1221. In the opening direction of the oil outlet 1221, the heating portion 211 faces the covering portion 221. Therefore, when the heating portion 211 of the heating element 21 is working, the oil outlet 1221 transmits the oil into the oil-guiding cotton 22, which has good timeliness in supplying oil to the oil-guiding cotton 22 and avoids the core sticking phenomenon of the atomizer core 2; since the oil storage tank 1 has only one oil outlet 122 for supplying oil to the oil-guiding cotton 22 1, thereby preventing the oil from flowing from the direction opposite to the oil outlet 1221 to the oil-conducting cotton 22, thereby alleviating oil leakage; when the heating portion 211 of the heating element 21 is not working, since there is only one oil outlet 1221 for oil supply, when the oil-conducting cotton 22 is in a saturated state, an oil film is formed on the surface of the oil-conducting cotton 22, which can prevent or slow down the oil from continuing to flow into the oil-conducting cotton 22, thereby reducing oil leakage; in addition, although outside air can enter the oil storage chamber 14 through the oil outlet 1221, when not in use, the oil-conducting cotton 22 is saturated, and the oil film formed on the oil-conducting cotton 22 can prevent air from entering the oil storage chamber 14, so that the gas pressure in the oil storage chamber 14 is slightly lower than the gas pressure outside the oil storage chamber 14, which is conducive to reducing oil leakage.
[0049] In some embodiments, see Figure 1-3 The oil outlet 1221 is a square or circular hole, which has a simple structure, is easy to process, and has low cost. Furthermore, the oil outlet 1221 is a square hole. When the square hole contacts the oil, the oil can contact the oil guide cotton 22 through the middle position of the square hole. Outside air can be introduced through the multiple corners of the square hole. That is, the generated bubbles enter the oil storage chamber 14 from all corners. Because the bubbles formed are circular, the shape of the square hole is not conducive to the retention of bubbles in the square hole. Therefore, the phenomenon of the atomizer core 2 burning caused by bubbles blocking the square hole and causing the oil to flow smoothly can be alleviated.
[0050] In some embodiments, preferably, see Figure 1-3 The oil outlet 1221 is a square with a simple structure, convenient processing and low cost. The square has four square corners, so bubbles can be generated from the four corners and enter the oil storage chamber 14.
[0051] In some embodiments, see Figure 1-3 The flow area of the oil outlet 1221 is 2.6mm 2 ~25mm 2 The larger the flow area of the oil outlet 1221, the easier it is to leak oil. The smaller the flow area, the easier it is to cause the atomizer core 2 to become sticky. Through experimental research and comparison, we know that the flow area of the oil outlet 1221 is 2.6mm 2 ~25mm 2 The overall effect is good.
[0052] In some embodiments, preferably, the flow area of the oil outlet 1221 is 3 mm 2 ~12mm 2 The larger the flow area of the oil outlet 1221, the easier it is to leak oil. The smaller the flow area, the easier it is to cause the atomizer core 2 to become sticky. Through experimental research and comparison, we know that when the flow area is between 3-12mm 2 When the oil storage tank is within the specified range, the pressure difference between the inside and outside of the oil storage tank 1 destroys the oil film and conducts with the atomizer core 2, thereby alleviating the phenomenon of dry burning of the heating element 21 when working, that is, oil leakage when standing still.
[0053] In addition, the heating element 21 includes a heating portion 211, and in the opening direction of the oil outlet 1221, the heating portion 211 faces the covering portion 221; the oil-conducting cotton 22 also has a portion that is not opposite to the heating portion 211, so when the heating portion 211 is working, the oil adsorbed by the oil-conducting cotton 22 in other parts can be replenished in time to the portion facing the heating portion 211; when the heating portion 211 is not working, the portion of the oil-conducting cotton 22 that is not opposite to the heating portion 211 can be used to cache a portion of the oil to provide supply for the next operation.
[0054] In other embodiments, see Figure 4-5The cartridge also includes a flow-limiting structure, which includes a flow-limiting wall portion located in the oil storage chamber 14. The flow-limiting wall portion covers the oil outlet 1221, and at least one conducting hole 1231 connected to the oil outlet 1221 is opened in a portion of the flow-limiting wall portion. The conducting hole 1231 corresponds to and is connected to the oil outlet 1221, so that the oil can be supplied in time when the heating element 21 is working, and the flow-limiting effect of the flow-limiting wall portion can further alleviate oil leakage; and there is a space between the conducting hole 1231 and the oil outlet 1221, which is at least the thickness of the flow-limiting wall portion. Therefore, an oil film can be formed in this space. When the heating element 211 is working, the oil film is destroyed, and the oil is guided in time to reduce dry burning of the atomizer core 2. In the static state, the oil film is not easily destroyed, so it is beneficial to prevent the flow of oil and alleviate oil leakage. It should be noted that the specific implementation method of the flow-limiting structure will be explained in a specific embodiment later.
[0055] In other embodiments, see Figure 4-5 The total flow area of the conduction holes 1231 is smaller than the flow area of the oil outlet 1221. When the pressure difference between the inside and outside of the oil storage tank 1 is relatively small, the oil film covering the conduction holes 1231 is more effective, mitigating oil leakage. When the heating unit 211 is operating and the pressure difference between the inside and outside of the oil storage tank 1 is relatively large, the oil film is destroyed, thus improving the oil guiding effect. In different scenarios, it not only plays an oil guiding role, but also acts as a flow blocker to alleviate oil leakage.
[0056] See also Figure 4-7 In other embodiments, the number of the conductive holes 1231 is at least two. Preferably, the number of the conductive holes 1231 is two. Furthermore, the at least two conductive holes 1231 are spaced apart in the circumferential direction of the core cavity 1222. Alternatively, the at least two conductive holes 1231 are spaced apart in the axial direction of the core cavity 1222.
[0057] For the specific implementation structure of the oil storage tank 1. In some embodiments, see Figure 1-4The oil storage tank 1 includes a housing 11, a cannula assembly 12, and a plug assembly 13. The housing 11 includes an oil reservoir 111 having a first opening and a gas passage 112 separated from the oil reservoir 111. The first opening faces a first direction X, and the gas passage 112 extends along the first direction X and penetrates the oil reservoir 111. One end of the cannula assembly 12 is inserted into and sealed with the gas passage 112. The cannula assembly 12 includes a core cavity 1222, in which the atomizer core 2 is inserted. An oil outlet 1221 is provided in the cannula assembly 12. The other end of the cannula assembly 12 is inserted into and sealed with the plug assembly 13. The plug assembly 13 and the cannula assembly 12 cooperate to cover the first opening, thereby defining an oil storage chamber 14 with the oil reservoir 111, thereby forming a relatively tight-walled oil storage chamber 14. The plug assembly 13 can be made of a sealing rubber material, for example. It should be noted that the sealing can adopt structures such as sealing rings, sealing pads, and sealing sleeves to reduce oil leakage at the connection.
[0058] For the specific implementation structure of the cannula assembly 12. In some embodiments, see Figure 1-4 The cannula assembly 12 includes a sealing tube 121 and an inner tube 122. One end of the sealing tube 121 is sealed and plugged into the gas passage 112; the other end of the sealing tube 121 is plugged into one end of the inner tube 122 and sealed with the inner tube 122. The other end of the inner tube 122 is sealed and plugged into the plug assembly 13. The inner cavity of the inner tube 122 is a core cavity 1222. The oil outlet 1221 is opened in the inner tube 122. The sealing tube 121 realizes a sealed series connection between the inner tube 122 and the gas passage 112, thereby reducing oil leakage.
[0059] In some embodiments, see Figure 1-3 At least one air inlet channel 1223 is provided on the wall of the inner tube 122, and the air inlet channel 1223 is connected to the oil outlet 1221. The air inlet channel 1223 is covered by the sealing tube 121, and the external air can be guided through the oil outlet 1221 into the oil storage chamber 14 through the air inlet channel 1223 to balance the pressure difference between the oil storage chamber 14 and the external environment.
[0060] In addition, in other embodiments, the specific implementation structure of the cannula assembly 12 is described. Figure 4-5The cigarette cartridge includes an outer tube 123 and an inner tube 122: one end of the outer tube 123 is sealed and plugged into the gas channel 112, and the other end of the outer tube 123 is sealed and plugged into the plug assembly 13. The outer tube 123 includes a flow-limiting structure; the inner tube 122 is inserted into the outer tube 123, and the inner cavity of the inner tube 122 is a core cavity 1222. The oil outlet 1221 is opened in the inner tube 122. Furthermore, in other embodiments, at least one air inlet channel 1223 is opened in the tube wall of the inner tube 122, and the air inlet channel 1223 is connected to the oil outlet 1221, and the air inlet channel 1223 is covered by the outer tube 123.
[0061] In the embodiment with the outer tube 123, the outer tube 123 is the flow-limiting structure in some embodiments. The outer tube 123 is sleeved on the inner tube 122. The conducting hole 1231 corresponds to and is connected to the oil outlet 1221, so that the oil can be supplied in time when the heating element 21 is working, and the flow-limiting effect of the flow-limiting wall can further alleviate oil leakage; and there is a space between the conducting hole 1231 and the oil outlet 1221 at least as thick as the wall of the flow-limiting wall, so an oil film can be formed in this space. When the heating part 211 of the heating element 21 is working, the oil film is destroyed, the oil is guided in time, and the dry burning of the atomizer core 2 is reduced. In the static state, the oil film is not easily destroyed, so it is beneficial to prevent the flow of oil and alleviate oil leakage.
[0062] Of course, in some other embodiments, the flow limiting structure may also be a blocking protrusion fixed or formed on the plug assembly 13, and a conducting hole 1231 corresponding to and connected to the oil outlet 1221 is provided on the blocking protrusion, which can also play a role in limiting the flow.
[0063] In addition, some embodiments of the present application further provide an electronic cigarette, which includes the cigarette cartridge of any of the above embodiments.
[0064] Finally, it should be noted that the various technical features of the above embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the various technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0065] The above embodiment merely represents one embodiment of the present invention. While the description is relatively specific and detailed, it should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art may make various modifications and improvements without departing from the scope of the present invention, and these modifications and improvements fall within the scope of the present invention. Therefore, the scope of the present invention shall be determined by the appended claims.
Claims
1. A cigarette cartridge, characterized in that: include: An oil storage tank (1) comprises a core cavity (1222), an oil storage cavity (14) and an oil outlet (1221), wherein the oil storage cavity (14) is connected to the core cavity (1222) via the oil outlet (1221), and the oil storage cavity (14) surrounds the outer periphery of the core cavity (1222); An atomizing core (2) is inserted into the core cavity (1222), and the atomizing core (2) includes a heating element (21) and an oil-conducting cotton (22) attached to the heating element (21); The oil-conducting cotton (22) includes a covering portion (221) that seals the oil outlet (1221), and the heating element (21) includes a heating portion (211). In the opening direction of the oil outlet (1221), the heating portion (211) faces the covering portion (221).
2. The cigarette cartridge according to claim 1, characterized in that The oil outlet (1221) is a square hole or a circular hole; and / or the flow area of the oil outlet (1221) is 2.6 mm 2 ~25mm 2 .
3. The cigarette cartridge according to claim 1, characterized in that The invention also includes a flow limiting structure, wherein the flow limiting structure includes a flow limiting wall portion located in the oil storage cavity (14), the flow limiting wall portion covers the oil outlet (1221), and at least one conducting hole (1231) communicating with the oil outlet (1221) is provided on a portion of the flow limiting wall portion, wherein the total flow area of the conducting hole (1231) is smaller than the flow area of the oil outlet (1221).
4. The cigarette cartridge according to claim 3, characterized in that: The core cavity (1222) is a through-hole structure extending along a first direction, the first direction being perpendicular to the opening direction, and the number of the through-holes (1231) is at least two; Wherein, at least two of the conductive holes (1231) are arranged at intervals in the circumferential direction of the core cavity (1222); and / or, at least two of the conductive holes (1231) are arranged at intervals in the axial direction of the core cavity (1222).
5. The cigarette cartridge according to any one of claims 3-4, characterized in that: The oil storage tank (1) comprises: The housing (11) comprises an oil storage tank (111) having a first opening and a gas channel (112) separated from the oil storage tank (111), wherein the first opening faces a first direction (X), and the gas channel (112) extends along the first direction (X) and penetrates the oil storage tank (111); A cannula assembly (12), one end of which is plugged into the gas passage (112) and sealed with the gas passage (112), the cannula assembly (12) comprising the core cavity (1222), the atomizing core (2) being inserted into the core cavity (1222) of the cannula assembly (12), and the oil outlet (1221) being provided in the cannula assembly (12); A plug assembly (13), the other end of the insert tube assembly (12) is plugged into the plug assembly (13) and is sealed with the plug assembly (13), and the plug assembly (13) and the insert tube assembly (12) cooperate to cover the first opening to cooperate with the oil storage tank (111) to define the oil storage chamber (14).
6. The cigarette cartridge according to claim 5, characterized in that: The cannula assembly (12) comprises: A sealing tube (121), one end of which is sealed and plugged into the gas channel (112); An inner tube (122), the other end of the sealing tube (121) is plugged into one end of the inner tube (122) and is sealed with the inner tube (122), the inner cavity of the inner tube (122) is the core cavity (1222), the oil outlet (1221) is opened in the inner tube (122), and the other end of the inner tube (122) is sealed and plugged into the plug assembly (13).
7. The cigarette cartridge according to claim 6, characterized in that: At least one air inlet channel (1223) is provided on the wall of the inner tube (122), the air inlet channel (1223) is communicated with the oil outlet (1221), and the air inlet channel (1223) is covered by the sealing tube (121).
8. The cigarette cartridge according to claim 5, characterized in that: The cannula assembly (12) comprises: an outer tube (123), one end of the outer tube (123) being sealed and plugged into the gas channel (112), and the other end of the outer tube (123) being sealed and plugged into the plug assembly (13), and the outer tube (123) including the flow-limiting structure; An inner tube member (122) is inserted into the outer tube member (123), the inner cavity of the inner tube member (122) is the core cavity (1222), and the oil outlet (1221) is opened in the inner tube member (122).
9. The cigarette cartridge according to claim 8, characterized in that: At least one air inlet channel (1223) is provided on the wall of the inner tube (122), the air inlet channel (1223) is in communication with the oil outlet (1221), and the air inlet channel (1223) is covered by the outer tube (123).
10. An electronic cigarette, characterized in that: The invention comprises the cigarette cartridge according to any one of claims 1 to 9.