Cigarette cartridge with double-layer tar storage cotton visible tar structure and electronic cigarette
By using a double-layer oil storage cotton design and an oil tank structure, the problem of oil leakage caused by oversaturation of the oil storage cotton is solved, thereby increasing the oil storage capacity and ensuring a stable supply of atomizing liquid, and preventing oil leakage.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN FUTURE TECH CO LTD
- Filing Date
- 2025-05-16
- Publication Date
- 2026-05-05
AI Technical Summary
The e-liquid in existing electronic cigarettes is prone to oversaturation, leading to leakage and affecting the user experience.
The design employs a double-layer oil storage cotton system, including an outer oil storage cotton system and an inner oil storage cotton system. A smaller second open oil chamber is set in the lower oil cup to limit the amount of atomizing liquid entering, and the penetration path of the atomizing liquid is controlled by the support pipe and the oil passage hole.
It effectively prevents the oil storage cotton from becoming oversaturated, reduces oil leakage, increases oil storage capacity, and ensures a normal supply of atomizing liquid without affecting use.
Smart Images
Figure CN224192958U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of electronic atomization device technology, and more specifically, relates to a cartridge and electronic cigarette with a double-layer oil storage cotton structure. Background Technology
[0002] In current common e-cigarette product designs, e-cigarette cartridges typically contain a liquid reservoir, a vapor chamber, an atomizer coil, and an airflow channel. The cartridge has a vertically integrated airflow channel in the center, with the liquid reservoir located around and isolated from the channel. The elongated, tubular atomizer coil is also located in the center of the cartridge, below the airflow channel, and the vapor chamber surrounds it. The e-liquid in the reservoir enters the vapor chamber through an outlet and is stored there. During use, the e-liquid in the vapor chamber enters the heated atomizer coil, where it is heated to form vapor, which is then drawn out through the airflow channel. However, in actual use, sometimes the e-liquid in the reservoir exceeds the vapor chamber's capacity, causing it to become oversaturated. Oversaturation can easily lead to leakage. Utility Model Content
[0003] The purpose of this application is to provide a cigarette cartridge with a double-layer oil-retaining cotton structure to solve the above-mentioned technical problems existing in the prior art.
[0004] To achieve the above objectives, the technical solution adopted in this application is: to provide a cartridge with a double-layer oil-retaining cotton structure for use in electronic cigarettes, the cartridge with the double-layer oil-retaining cotton structure comprising:
[0005] The oil cup assembly includes an upper and lower oil cup connected vertically to a cartridge oil cup and a lower oil cup. The cartridge oil cup has a hollow, lowerly open first open oil compartment and an air passage that runs vertically through it. The first open oil compartment is located outside the air passage and is isolated from it. The lower oil cup has a hollow mounting cavity and a second open oil compartment that communicates with the first open oil compartment. The volume of the second open oil compartment is smaller than that of the first open oil compartment.
[0006] The oil storage cotton assembly includes an outer oil storage cotton and an inner oil storage cotton, both housed within an installation cavity. The outer oil storage cotton is fitted around the outer oil storage surface, and a second open oil reservoir is located above the outer oil storage cotton; and...
[0007] The atomizing core is housed inside the inner oil storage cotton, located below the air passage and connected to it. The atomizing liquid stored in the first open oil chamber enters the atomizing core sequentially through the second open oil chamber, the outer oil storage cotton, and the inner oil storage cotton.
[0008] Optionally, the oil storage cotton assembly also includes a support tube, which is located between the inner annular surface of the outer oil storage cotton and the outer annular surface of the inner oil storage cotton; the support tube is provided with multiple oil passage holes, through which the atomized liquid in the outer oil storage cotton enters the inner oil storage cotton.
[0009] Optionally, the bottom surface of the lower oil cup protrudes downward to form a lower flange, the bottom end of the lower flange abuts against the top of the outer oil storage cotton, and the inner wall surface of the lower oil cup, the outer ring surface of the lower flange, the bottom surface of the lower oil cup, and the top surface of the outer oil storage cotton together form a second open oil tank.
[0010] Optionally, the height of the inner oil-cotton storage is higher than that of the outer oil-cotton storage.
[0011] Optionally, an oil guide pipe is formed by protruding upward on the top surface of the lower oil cup. The upper end of the oil guide pipe extends into the first open oil tank, and the lower end of the oil guide pipe is connected to the second open oil tank.
[0012] Optionally, the e-cigarette cartridge with the double-layer oil storage cotton structure also includes a first e-cigarette cartridge base that covers the lower opening of the first oil compartment, an oil filling hole plug, and an oil filling hole seal;
[0013] The first cartridge base is provided with an oil filling hole and a first through hole through which the oil guide tube can pass. The oil filling hole is connected to the first open oil tank. The oil filling hole plug blocks the oil filling hole. The oil filling hole seal is sandwiched between the top of the first cartridge base and the bottom oil cup. The top end face of the oil filling hole seal is in sealing contact with the bottom end face of the oil filling hole plug.
[0014] Optionally, the e-cigarette cartridge with the double-layer oil-retaining cotton structure also includes a second e-cigarette cartridge base, an upper oil-blocking component, and a lower oil-blocking component; the second e-cigarette cartridge base covers the lower opening of the lower oil cup;
[0015] The upper oil-blocking component is sleeved on the top of the first cartridge base, and the lower oil-blocking component is sandwiched between the second cartridge base and the oil-collecting cotton assembly. The top end face of the lower oil-blocking component is sealed and abuts against the lower end face of the outer oil-collecting cotton and the lower end face of the inner oil-collecting cotton.
[0016] Optionally, both the upper and lower oil blocking components have several sealing ribs on their outer ring surfaces. The outer ring surface of the upper oil blocking component is sealed to the inner wall surface at the lower end of the e-liquid cup via the sealing ribs. The outer ring surface of the lower oil blocking component is sealed to the inner wall surface at the lower end of the lower e-liquid cup via the sealing ribs.
[0017] Optionally, the e-liquid cartridge with the double-layer oil-storing cotton structure also includes a base oil-absorbing cotton, which is built into the base of the second e-liquid cartridge and located below the atomizing core. The upper surface of the base oil-absorbing cotton is opposite to the lower surface of the lower oil-blocking component, and there is a gap between the two.
[0018] This application also proposes an electronic cigarette comprising a cartridge having a double-layered oil-retaining cotton structure as described above.
[0019] The beneficial effects of the e-liquid cartridge with a double-layer oil-retaining cotton structure provided in this application are as follows: the atomized liquid stored in the first oil-retaining chamber first enters the second oil-retaining chamber in the lower oil cup; then, it enters the outer oil-retaining cotton located below it from the second oil-retaining chamber; the atomized liquid stored in the outer oil-retaining cotton slowly enters the inner oil-retaining cotton; then, it enters the atomizing core from the inner oil-retaining cotton and is heated to form vapor, which is finally drawn out through the airway. Here, the setting of the second oil-retaining chamber is essential. By setting a small-volume second oil-retaining chamber at the top of the outer oil-retaining cotton in the lower oil cup, the amount of atomized liquid entering the outer oil-retaining cotton can be limited to the volume of the second oil-retaining chamber, ensuring that only a small amount of atomized liquid, not exceeding the volume of the second oil-retaining chamber, enters the outer oil-retaining cotton. At the same time, the double-layer oil-retaining cotton design not only increases the oil storage capacity of the oil-retaining cotton but also extends the penetration path, meaning that the process of atomized liquid entering the inner oil-retaining cotton is slower. In summary, the technical solution of this application, through the dual oil tank design of the first and second open oil tanks, and the double-layer oil storage cotton design of the outer and inner oil storage cotton, can achieve the technical objective of preventing the inner oil storage cotton from becoming oversaturated by limiting the inflow of atomizing liquid, increasing the oil storage capacity of the oil storage cotton, and slowing down the process of atomizing liquid entering the inner oil storage cotton. This can effectively prevent oil leakage caused by the oversaturation of the oil storage cotton. Attached Figure Description
[0020] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0021] Figure 1 A cross-sectional schematic diagram of the e-cigarette cartridge with a double-layer oil-retaining cotton structure provided in the embodiments of this application;
[0022] Figure 2 for Figure 1 Enlarged view of point A in the middle;
[0023] Figure 3 for Figure 1 Enlarged view of point B in the middle;
[0024] Figure 4 for Figure 1 Enlarged view of point C in the middle;
[0025] Figure 5 An exploded view of a smoke bomb with a double-layered oil-retaining cotton structure provided in an embodiment of this application.
[0026] Explanation of icon numbers:
[0027] label name label name 110 E-cigarette cartridge cup 120 Lower oil cup 111 First Bright Oil Warehouse 112 airway 121 Second oil depot 210 External oilseed cotton 220 Inner oil-filled cotton 300 atomizer core 230 support tube 231 Oil passage 122 Lower flange 123 oil guide tube 130 First e-cigarette cartridge base 140 Oil filling hole plug 150 Oil injection hole seal 131 First via 132 Oil injection hole 160 Second smoke cartridge base 171 Upper oil blocking component 172 Lower oil-blocking component 173 Sealing rib 180 Oil-absorbing cotton base 191 electrode 192 Smoke cartridge magnet 113 Suction nozzle Detailed Implementation
[0028] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.
[0029] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.
[0030] It should also be noted that the directional terms such as left, right, up, and down in the embodiments of this application are only relative concepts or are based on the normal use state of the product, and should not be considered as restrictive.
[0031] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.
[0032] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.
[0033] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0034] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.
[0035] This application provides a smoke cartridge with a double-layer oil-retaining cotton structure.
[0036] Please see Figures 1 to 5 In one embodiment, the e-liquid cartridge with a double-layer oil-retaining cotton structure includes an oil cup assembly, an oil-retaining cotton assembly, and an atomizing core 300. Specifically, the oil cup assembly includes an e-liquid cartridge oil cup 110 and a lower oil cup 120 connected vertically. The e-liquid cartridge oil cup 110 forms a hollow, lowerly open first oil reservoir 111 and a vertically penetrating air passage 112. The first oil reservoir 111 is located around the air passage 112 and is isolated from it. The lower oil cup 120 forms a hollow mounting cavity and a second oil reservoir 121 connected to the first oil reservoir 111. The volume of the second oil reservoir 121 is smaller than that of the first oil reservoir 111. The oil-retaining cotton assembly includes an outer oil-retaining cotton 210 and an inner oil-retaining cotton 220 both housed in the mounting cavity. The outer oil-retaining cotton 210 is sleeved around the inner oil reservoir surface, and the second oil reservoir 121 is located above the outer oil-retaining cotton 210. The atomizing core 300 is housed inside the inner oil storage cotton 220, located below and connected to the air passage 112. The atomizing liquid stored in the first open oil chamber 111 flows sequentially through the second open oil chamber 121, the outer oil storage cotton 210, and the inner oil storage cotton 220 into the atomizing core 300. The specific flow direction of the atomizing liquid is shown by the arrow in the figure.
[0037] Based on this structural design, in this embodiment, the atomizing liquid stored in the first open oil chamber 111 first enters the second open oil chamber 121 in the lower oil cup 120; then, it enters the outer oil storage cotton 210 located below it from the second open oil chamber 121; the atomizing liquid stored in the outer oil storage cotton 210 slowly enters the inner oil storage cotton 220; then, it enters the atomizing core 300 from the inner oil storage cotton 220 and is heated to form smoke, which is finally drawn out through the air passage 112. Here, the setting of the second open oil chamber 121 is very necessary. By setting a small-volume second open oil chamber 121 at the top of the outer oil storage cotton 210 in the lower oil cup 120, the amount of atomizing liquid entering the outer oil storage cotton 210 can be limited to the volume of the second open oil chamber 121, that is, ensuring that only a small amount of atomizing liquid, not exceeding the volume of the second open oil chamber 121, enters the outer oil storage cotton 210. Meanwhile, the double-layer design of the outer oil-storing cotton 210 and the inner oil-storing cotton 220 not only increases the oil storage capacity of the oil-storing cotton but also extends the permeation path, meaning the process of the atomizing liquid entering the inner oil-storing cotton 220 is slower. In summary, in the technical solution of this application, the double-tank design of the first open oil tank 111 and the second open oil tank 121, along with the double-layer design of the outer oil-storing cotton 210 and the inner oil-storing cotton 220, achieves the technical objective of preventing oversaturation of the inner oil-storing cotton 220 by limiting the inflow of atomizing liquid, increasing the oil storage capacity of the oil-storing cotton, and slowing down the process of the atomizing liquid entering the inner oil-storing cotton 220. This effectively prevents oil leakage caused by oversaturation of the oil-storing cotton.
[0038] It should be noted that the e-liquid cartridge with its double-layer oil-retaining cotton structure is a component of the e-cigarette product. The e-cigarette also includes components such as a battery. The battery is housed in a battery compartment below the e-liquid cartridge and is used to provide energy for heating the atomizing core 300 after being electrically connected to the electrode 191 located in the cartridge. A mouthpiece 113, communicating with the airway 112, is formed at the top of the e-liquid cup 110. The vapor generated by the heating of the atomizing core 300 is drawn out through the mouthpiece 113 via the airway 112. Furthermore, when the e-cigarette is not in use, the aforementioned design allows the atomized liquid to enter the inner oil-retaining cotton 220 relatively slowly, effectively preventing leakage due to oversaturation of the oil-retaining cotton. However, after the e-cigarette is activated, the negative pressure created during inhalation accelerates the process of the atomized liquid entering the inner oil-retaining cotton 220, thus not affecting the heating of the atomizing core 300. In other words, while preventing oversaturation of the inner oil-retaining cotton 220, the normal use of the e-cigarette is not affected.
[0039] Please see Figures 1 to 5In this embodiment, the oil-storing cotton assembly further includes a support tube 230, which is disposed between the inner annular surface of the outer oil-storing cotton 210 and the outer annular surface of the inner oil-storing cotton 220. The support tube 230 has multiple oil passage holes 231 through which the atomized liquid in the outer oil-storing cotton 210 enters the inner oil-storing cotton 220. Preferably, the support tube 230 is made of stainless steel. The inner annular surface of the support tube 230 is in contact with the outer annular surface of the inner oil-storing cotton 220, and the outer annular surface of the support tube 230 is in contact with the inner annular surface of the outer oil-storing cotton 210. The multiple oil passage holes 231 are arranged at intervals along the circumference of the support tube 230. It is understandable that the support tube 230 has multiple functions: on the one hand, since both the inner oil-retaining cotton 220 and the outer oil-retaining cotton 210 are made of porous and relatively soft materials, the support tube 230 sandwiched between them can play a good supporting role, thus facilitating the assembly of the inner oil-retaining cotton 220 and the outer oil-retaining cotton 210; on the other hand, since the atomizing liquid in the outer oil-retaining cotton 210 needs to pass through the oil passage 231 to enter the inner oil-retaining cotton 220, the number, size, and position distribution of the oil passage 231 can affect the progress of the atomizing liquid from the outer oil-retaining cotton 210 to the inner oil-retaining cotton 220. Therefore, the number, size, and position distribution of the oil passage 231 can be reasonably designed according to the actual product requirements.
[0040] Please see Figures 1 to 3 In this embodiment, the bottom surface of the top of the lower oil cup 120 protrudes downward to form a lower flange 122. The bottom end of the lower flange 122 abuts against the top of the outer oil storage cotton 210. The inner wall surface of the lower oil cup 120, the outer ring surface of the lower flange 122, the bottom surface of the top of the lower oil cup 120, and the top surface of the outer oil storage cotton 210 together form the second open oil reservoir 121. Here, the lower oil cup 120 is usually integrally injection molded, that is, the lower flange 122 is directly and integrally connected to the top of the lower oil cup 120. In this way, after the outer oil storage cotton 210 and the inner oil storage cotton 220 are assembled in the lower oil cup 120, the second open oil reservoir 121 can be naturally formed above the outer oil storage cotton 210. Thus, the structure of the e-cigarette cartridge is more compact and reasonable, and the assembly of components is also more convenient. Of course, in other embodiments, the structure of the second open oil reservoir 121 can also be realized by other designs, such as, but not limited to, using a removable partition to form the second open oil reservoir 121 in the lower oil cup 120, etc., without any particular limitation.
[0041] Furthermore, such as Figure 1 and Figure 2As shown, in this embodiment, the height of the inner oil-retaining cotton 220 is higher than that of the outer oil-retaining cotton 210. It can be understood that in the e-cigarette cartridge, the inner oil-retaining cotton 220 serves as the main oil-retaining cotton, while the outer oil-retaining cotton 210 serves as an auxiliary oil-retaining cotton. Therefore, the oil-retaining capacity of the inner oil-retaining cotton 220 should be greater than that of the outer oil-retaining cotton 210. Furthermore, in this embodiment, due to the separation provided by the lower flange 122, its inner space can accommodate the upper part of the taller inner oil-retaining cotton 220. This allows for a more integrated and compact structural design of the lower oil cup 120, and also helps to maximize the volume of the inner oil-retaining cotton 220 within a smaller e-cigarette cartridge, thereby increasing the oil-retaining capacity of the oil-retaining cotton.
[0042] Please see Figure 1 , Figure 2 as well as Figure 5 In this embodiment, an oil guide pipe 123 protrudes upward from the top surface of the lower oil cup 120. The upper end of the oil guide pipe 123 extends into the first open oil reservoir 111, and the lower end of the oil guide pipe 123 communicates with the second open oil reservoir 121. The oil guide pipe 123 facilitates the smoother flow of the atomizing liquid in the first open oil reservoir 111 to the second open oil reservoir 121. Specifically, as follows... Figure 5 As shown, in this embodiment, the oil guide pipe 123 is located on one side of the top surface of the lower oil cup 120, and in order to enhance the oil guiding function, there are two oil guide pipes 123. The oil guide pipe 123 passes through each component above the top of the lower oil cup 120 and then extends into the first open oil tank 111.
[0043] Please see Figures 1 to 5In this embodiment, the e-cigarette cartridge with a double-layer oil storage cotton structure also includes a first cartridge base 130 covering the lower opening of the first oil reservoir 111, an oil filling hole plug 140, and an oil filling hole seal 150. The first cartridge base 130 is provided with an oil filling hole 132 and a first through hole 131 through which the oil guide tube 123 can pass. The oil filling hole 132 communicates with the first oil reservoir 111. The oil filling hole plug 140 blocks the oil filling hole 132. The oil filling hole seal 150 is sandwiched between the top of the first cartridge base 130 and the top of the lower oil cup 120. The top end face of the oil filling hole seal 150 seals against the lower end face of the oil filling hole plug 140. When it is necessary to refill the cartridge with e-liquid, the cartridge e-liquid cup 110 can be removed, and the e-liquid plug 140 blocking the e-liquid hole 132 can be removed. Then, e-liquid can be injected into the e-liquid hole 132. After the first e-liquid tank 111 is filled with e-liquid, the e-liquid plug 140 is plugged back into the e-liquid hole 132. Finally, the cartridge e-liquid cup 110 is installed on the lower e-liquid cup 120. Here, the e-liquid hole seal 150 is made of silicone, which is the silicone sealant for the e-liquid hole 132. The e-liquid hole seal 150 has a corresponding through hole to connect to the air passage 112, and also has an elastic hole through which the e-liquid guide tube 123 can pass. After the cartridge e-liquid cup 110 and the lower e-liquid cup 120 are connected in place, the top end face of the e-liquid hole seal 150 and the bottom end face of the e-liquid plug 140 seal against each other to completely seal the e-liquid hole 132, ensuring that the e-liquid cannot leak out from the e-liquid hole 132.
[0044] Please see Figures 1 to 5 In this embodiment, the e-cigarette cartridge with a double-layer oil-retaining cotton structure further includes a second cartridge base 160, an upper oil-blocking component 171, and a lower oil-blocking component 172; the second cartridge base 160 covers the lower opening of the lower oil cup 120. The upper oil-blocking component 171 is sleeved on the top of the first cartridge base 130, and the lower oil-blocking component 172 is sandwiched between the second cartridge base 160 and the oil-retaining cotton assembly, with the top end face of the lower oil-blocking component 172 sealingly abutting against the lower end face of the outer oil-retaining cotton 210 and the lower end face of the inner oil-retaining cotton 220. Further, as... Figure 2 and Figure 4As shown, both the upper oil-blocking component 171 and the lower oil-blocking component 172 have a plurality of sealing ribs 173 on their outer ring surfaces. The outer ring surface of the upper oil-blocking component 171 is sealed to the inner wall surface of the lower end of the e-liquid cup 110 through the sealing ribs 173; the outer ring surface of the lower oil-blocking component 172 is sealed to the inner wall surface of the lower end of the lower e-liquid cup 120 through the sealing ribs 173. Specifically, the sealing ribs 173 are annular, and multiple sealing ribs 173 are arranged at intervals in the vertical direction to achieve a better elastic sealing effect. Here, the upper oil-blocking component 171 mainly serves to isolate the atomizing liquid in the first e-liquid cartridge base 130 from the atomizing liquid in the first open e-liquid chamber 111; similarly, the lower oil-blocking component 172 also serves to isolate the second e-liquid cartridge base 160 from the outer e-liquid storage cotton 210 and the inner e-liquid storage cotton 220. Both the lower oil-blocking component 172 and the upper oil-blocking component 171 are preferably made of silicone material. Of course, in other embodiments, other suitable elastic sealing materials can also be used.
[0045] Please see Figure 1 , Figure 4 and Figure 5 In this embodiment, the e-liquid cartridge with a double-layer oil-retaining cotton structure also includes a base oil-absorbing cotton 180. The base oil-absorbing cotton 180 is built into the second e-liquid cartridge base 160 and located below the atomizing core 300. The upper surface of the base oil-absorbing cotton 180 is opposite to the lower surface of the lower oil-blocking component 172, and there is a gap between them. It can be understood that since a small amount of condensate may drip when the atomizing core 300 is heated, the base oil-absorbing cotton 180 can absorb this condensate, thereby improving the e-liquid cartridge's anti-leakage function. In addition, two positive and negative electrodes 191 and an e-liquid cartridge magnet 192 are also installed on the second e-liquid cartridge base 160. In this embodiment, the electrodes 191 are preferably gold-plated electrodes 191 with better conductivity, and the e-liquid cartridge magnet 192 can facilitate the magnetic connection of the e-liquid cartridge.
[0046] This application also proposes an electronic cigarette, which includes the aforementioned cartridge with a double-layer oil-retaining cotton structure. The specific structure of the cartridge with the double-layer oil-retaining cotton structure is as described in the above embodiments. Since this electronic cigarette adopts all the technical solutions of all the above embodiments, it also has all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be repeated here.
[0047] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A cartridge with a double-layer oil-retaining cotton structure for use in electronic cigarettes, characterized in that, The e-cigarette cartridge with a double-layer oil-retaining cotton structure includes: The oil cup assembly includes an upper and lower oil cup connected vertically to a cartridge oil cup and a lower oil cup. The cartridge oil cup has a hollow, lowerly open first open oil compartment and an air passage that runs vertically through it. The first open oil compartment is located outside the air passage and is isolated from it. The lower oil cup has a hollow mounting cavity and a second open oil compartment that communicates with the first open oil compartment. The volume of the second open oil compartment is smaller than that of the first open oil compartment. An oil storage cotton assembly includes an outer oil storage cotton and an inner oil storage cotton, both housed within the mounting cavity. The outer oil storage cotton is fitted around the inner oil storage cotton, and a second open oil reservoir is located above the outer oil storage cotton. The atomizing core is fitted inside the inner oil-retaining cotton, located below the air passage and connected to the air passage. The atomizing liquid stored in the first open oil chamber enters the atomizing core sequentially through the second open oil chamber, the outer oil-retaining cotton, and the inner oil-retaining cotton.
2. The e-cigarette cartridge with a double-layer oil-retaining cotton structure as described in claim 1, characterized in that, The oil storage cotton assembly also includes a support tube, which is located between the inner ring surface of the outer oil storage cotton and the outer ring surface of the inner oil storage cotton. The support tube is provided with a plurality of oil passage holes, through which the atomized liquid in the outer oil storage cotton enters the inner oil storage cotton.
3. The e-cigarette cartridge with a double-layer oil-retaining cotton structure as described in claim 2, characterized in that, The bottom surface of the lower oil cup protrudes downward to form a lower flange, the bottom end of the lower flange abuts against the top of the outer oil storage cotton, and the inner wall surface of the lower oil cup, the outer ring surface of the lower flange, the bottom surface of the top of the lower oil cup, and the top surface of the outer oil storage cotton together form the second open oil tank.
4. The e-cigarette cartridge with a double-layer oil-retaining cotton structure as described in claim 3, characterized in that, The height of the inner oil-retaining cotton is higher than that of the outer oil-retaining cotton.
5. The e-cigarette cartridge with a double-layer oil-retaining cotton structure as described in claim 2, characterized in that, An oil guide pipe protrudes upward from the top surface of the lower oil cup. The upper end of the oil guide pipe extends into the first open oil tank, and the lower end of the oil guide pipe is connected to the second open oil tank.
6. The e-cigarette cartridge with a double-layer oil-retaining cotton structure as described in claim 5, characterized in that, The e-cigarette cartridge with a double-layer oil storage cotton structure also includes a first e-cigarette cartridge base that covers the lower opening of the first oil compartment, an oil filling hole plug, and an oil filling hole seal. The first cartridge base is provided with an oil filling hole and a first through hole through which the oil guide tube can pass. The oil filling hole is connected to the first open oil tank. The oil filling hole plug blocks the oil filling hole. The oil filling hole seal is sandwiched between the top of the first cartridge base and the top of the lower oil cup. The top end face of the oil filling hole seal is in sealing contact with the lower end face of the oil filling hole plug.
7. The e-cigarette cartridge with a double-layer oil-retaining cotton structure as described in claim 6, characterized in that, The e-cigarette cartridge with a double-layer oil-retaining cotton structure also includes a second e-cigarette cartridge base, an upper oil-blocking component, and a lower oil-blocking component; the second e-cigarette cartridge base covers the lower opening of the lower oil cup; The upper oil-blocking component is sleeved on the top of the first cartridge base, and the lower oil-blocking component is sandwiched between the second cartridge base and the oil-retaining cotton assembly. The top end face of the lower oil-blocking component is in sealed contact with the lower end face of the outer oil-retaining cotton and the lower end face of the inner oil-retaining cotton.
8. The e-cigarette cartridge with a double-layer oil-retaining cotton structure as described in claim 7, characterized in that, Both the upper and lower oil-blocking components have several sealing ribs on their outer ring surfaces. The outer ring surface of the upper oil-blocking component is sealed to the inner wall surface of the lower end of the e-liquid cup through the sealing ribs. The outer ring surface of the lower oil-blocking component is sealed to the inner wall surface of the lower end of the lower e-liquid cup through the sealing ribs.
9. The e-cigarette cartridge with a double-layer oil-retaining cotton structure as described in claim 7, characterized in that, The e-liquid cartridge with a double-layer oil-storing cotton structure also includes a base oil-absorbing cotton, which is built into the second e-liquid cartridge base and located below the atomizing core. The upper surface of the base oil-absorbing cotton is opposite to the lower surface of the lower oil-blocking component, and there is a gap between them.
10. An electronic cigarette, characterized in that, Including the e-cigarette cartridge with a double-layer oil-retaining cotton structure as described in any one of claims 1 to 9.