An airway structure for a foolproof cartridge for electronic cigarettes
By designing an air intake hole, airway groove, and air intake notch on the base of the e-cigarette cartridge, the problem of electrodes occupying air intake space is solved, improving the vaping experience and air intake volume, and enhancing the product's performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN HANQINGDA TECH CO LTD
- Filing Date
- 2025-07-08
- Publication Date
- 2026-06-30
AI Technical Summary
In existing e-cigarettes, the electrodes of the cartridges are located in the center, occupying the air intake space at the lower end of the main airway and affecting the vaping experience.
Design a foolproof airway structure for the cartridge. By setting an air inlet, an airway groove, and an air inlet notch on the cartridge base, the air inlet channel is formed by the inner wall of the lower sealing silicone and the airway groove. The air is moved to the side and guided to the atomizing core assembly through the air inlet channel, avoiding the central electrode block from occupying the air inlet space.
It effectively solves the problem of electrodes occupying air intake space, improves the user's vaping experience, increases air intake volume and flow rate, and improves e-liquid filling efficiency and product yield by absorbing e-liquid with oil-absorbing cotton.
Smart Images

Figure CN224420144U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electronic cigarette technology, and specifically to an airway structure for a foolproof cartridge for electronic cigarettes. Background Technology
[0002] An electronic cigarette is an electronic device that mimics the function of a traditional cigarette. It vaporizes a liquid containing nicotine using an atomizer, allowing the user to inhale the vapor. Electronic cigarettes typically consist of a cartridge and a device. The cartridge contains a vaporizer, which is powered by a battery within the device. This vaporizer transforms the liquid nicotine in the cartridge into a vapor, giving the user a sensation similar to smoking, allowing them to "exhale clouds of smoke."
[0003] The current connection method between the e-cigarette device and the cartridge generally uses a one-to-one contact between positive and negative electrodes and corresponding pin positions to achieve electrical connection. The cartridge has a main atomizing airway running through the upper and lower surfaces of the cartridge, and positive and negative electrodes are located on both sides of the bottom of the cartridge. To avoid the positive and negative electrodes being reversed between the cartridge and the device, manufacturers have modified the cartridge by placing one or more positive electrodes in the center and the other on the side. This avoids the common problem of reversed positive and negative electrodes and serves as a foolproof method. However, placing the electrode in the center occupies the air intake space at the lower end of the cartridge's main airway, affecting the vaping experience and failing to meet the user's needs. Utility Model Content
[0004] To address the problems in the prior art, this utility model provides an airway structure for a foolproof cartridge for electronic cigarettes, which solves the problem that in the prior art, the electrodes are placed in the center of the cartridge, which occupies the air intake space at the lower end of the cartridge's main airway and affects the vaping experience.
[0005] This utility model discloses an airway structure for a foolproof e-cigarette cartridge, comprising a cartridge body, an atomizing core assembly, and a lower sealing oil assembly. The atomizing core assembly is disposed within the cartridge body, and the lower sealing oil assembly is disposed at the lower end of the cartridge body. The lower sealing oil assembly includes a lower sealing silicone, a cartridge base, a central electrode block, and an electrode component, which are respectively positive or negative terminals connected to electricity. The lower end face of the cartridge base is provided with an air inlet and a central mounting groove. The central electrode block is disposed in the central mounting groove, and the air inlet is disposed on the side of the central mounting groove. An airway groove and a connecting cylinder are provided inside the cartridge base. The lower sealing silicone is sleeved on the cartridge base, and the inner wall of the lower sealing silicone and the airway groove form an air inlet channel. One end of the air inlet channel is connected to the air inlet. The lower end of the atomizing core assembly is installed in the connecting cylinder, and the connecting cylinder is provided with an air inlet notch connected to the other end of the air inlet channel. Gas from the air inlet can flow into the atomizing core assembly through the air inlet notch.
[0006] This utility model is further improved by integrating the connecting tube and the cartridge base into one piece, and providing mounting holes on the lower sealing silicone for use with the atomizing core assembly.
[0007] This utility model is further improved by having two air inlets, two air passage slots, and two air inlet gaps, with the two air inlets respectively located on both sides of the central electrode block.
[0008] This utility model is further improved by providing oil-absorbing cotton inside the air passage groove.
[0009] The present invention is further improved in that the lower sealing oil assembly also includes an oil injection plug, an oil injection hole is provided on the base of the e-cigarette cartridge, an oil injection column is provided inwardly at the position corresponding to the oil injection hole inside the base of the e-cigarette cartridge, an oil injection sealing hole is provided on the lower sealing silicone to cooperate with the oil injection column, and the oil injection plug is provided in the oil injection hole.
[0010] This utility model is further improved by having two oil injection plugs, which are symmetrically arranged on both sides of the central mounting groove.
[0011] This utility model is further improved by providing a positioning boss between the connecting cylinder and the oil injection column for the lower sealing silicone.
[0012] This utility model is further improved in that the electrode component is an electrode metal sleeve, which is sleeved on the lower end of the cartridge body. The atomizing core assembly is provided with a first pin and a second pin. The electrode metal sleeve is provided with a clearance hole that cooperates with the central electrode block. The clearance hole can prevent the central electrode block from contacting the electrode metal sleeve. The first pin is electrically connected to the central electrode block, and the second pin is electrically connected to the electrode metal sleeve.
[0013] The present invention is further improved by providing a first pin hole on the cartridge base to cooperate with the first pin, the first pin being disposed in the first pin hole, and a first wiring groove to cooperate with the first pin being provided on the lower end face of the cartridge base. The first pin passes through the first pin hole and the first wiring groove in sequence and is disposed in the central mounting groove. The first wiring groove can prevent the first pin from contacting the electrode metal sleeve.
[0014] This utility model is further improved by providing a second pin hole on the side of the oil filling hole in the cartridge base, with the second pin set in the second pin hole. A second wiring groove that mates with the second pin is provided on the lower end face of the cartridge base. The second pin passes through the second pin hole and the second wiring groove in sequence and is set in the oil filling hole. The oil filling plug is made of metal. The second wiring groove can position the second pin. The second pin is electrically connected to the oil filling plug. The oil filling plug is electrically connected to the electrode metal sleeve.
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model provides an airway structure for a foolproof e-cigarette cartridge. By adopting this structure, it can effectively solve the problem in the prior art where the electrode is placed in the center of the cartridge, which occupies the air intake space at the lower end of the cartridge's main airway and affects the vaping experience. Through the cooperation of the air intake hole, airway groove, and air intake notch, the inner wall of the lower sealing silicone and the airway groove form an air intake channel, which moves the air intake of the cartridge to the side and guides it through the air intake channel. Finally, the air flows into the atomizing core assembly from the air intake notch, effectively solving the problem of occupying air intake space by placing the central electrode block in the center and improving the user's vaping experience. Attached Figure Description
[0016] To more clearly illustrate the solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the overall airway structure of the foolproof cartridge used in electronic cigarettes;
[0018] Figure 2 This is an exploded structural diagram of the airway structure of the foolproof cartridge used in electronic cigarettes.
[0019] Figure 3 This is a schematic diagram of the cartridge base structure;
[0020] Figure 4 for Figure 3 Another perspective structural diagram;
[0021] Figure 5 This is a schematic diagram of the silicone sealant structure. Detailed Implementation
[0022] Unless otherwise defined, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The terms "comprising" and "having," and any variations thereof, in the specification, claims, and accompanying drawings are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, and accompanying drawings are used to distinguish different objects, not to describe a particular order.
[0023] In this invention, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this invention. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment to other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this invention can be combined with other embodiments.
[0024] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.
[0025] like Figure 1-5 As shown, this utility model discloses an airway structure for a foolproof cartridge in an electronic cigarette, comprising a cartridge body 1, an atomizing core assembly 2, and a lower sealing oil assembly. The atomizing core assembly 2 is disposed within the cartridge body 1, and the lower sealing oil assembly is disposed at the lower end of the cartridge body 1. The lower sealing oil assembly includes a lower sealing silicone 3, a cartridge base 4, a central electrode block 5, and an electrode 6. The central electrode block 5 and the electrode 6 are respectively the positive or negative terminals connected to electricity. The lower end face of the cartridge base 4 is provided with an air inlet 41 and a central mounting groove 42, and the central electrode block 5 is disposed at the central mounting groove 42. In the groove 42, the air inlet 41 is located on the side of the central mounting groove 42. The cartridge base 4 is provided with an air passage groove 43 and a connecting tube 44. The lower sealing silicone 3 is sleeved on the cartridge base 4. The inner wall of the lower sealing silicone 3 and the air passage groove 43 form an air intake channel. One end of the air intake channel is connected to the air inlet 41. The lower end of the atomizing core assembly 2 is installed in the connecting tube 44. The connecting tube 44 is provided with an air intake notch 441 that is connected to the other end of the air intake channel. The gas from the air inlet 41 can flow into the atomizing core assembly 2 through the air intake notch 441.
[0026] With the cooperation of the air inlet 41, the air channel groove 43 and the air inlet notch 441, the inner wall of the lower sealing silicone 3 and the air channel groove 43 form an air intake channel, which moves the air intake of the e-cigarette cartridge to the side and guides it through the air intake channel. Finally, the air flows into the atomizing core assembly 2 from the air inlet notch 441. This effectively solves the problem of occupying the air intake space by setting the central electrode block 5 in the center position and improves the user's vaping experience.
[0027] The connecting tube 44 and the cartridge base 4 are integrally formed, and the lower sealing silicone 3 is provided with mounting holes 31 that cooperate with the atomizing core assembly 2.
[0028] By integrally molding the connecting cylinder 44 with the cartridge base 4, the sealing performance between the connecting cylinder 44 and the cartridge base 4 can be improved. Furthermore, by providing the mounting hole 31, the sealing performance between the connecting cylinder 44 and the lower sealing silicone 3 can be improved.
[0029] There are two air inlets 41, two air passage slots 43, and two air inlet gaps 441. The two air inlets 41 are respectively located on both sides of the central electrode block 5.
[0030] By setting two air inlets 41, air is drawn in from the left and right sides, increasing both the air volume and the flow rate.
[0031] Oil-absorbing cotton 7 is installed inside the air intake channel 43. The oil-absorbing cotton 7 can absorb the e-liquid or condensate in the air intake channel.
[0032] The lower sealing oil assembly also includes an oil filling plug 8, an oil filling hole 45 is provided on the cartridge base 4, an oil filling column 46 is provided inwardly at the position corresponding to the oil filling hole 45 inside the cartridge base 4, an oil filling sealing hole 32 is provided on the lower sealing oil silicone 3 to cooperate with the oil filling column 46, and the oil filling plug 8 is provided in the oil filling hole 45.
[0033] The oil filling plug 8 allows for convenient oil filling of the e-cigarette cartridge.
[0034] There are two oil filling plugs 8, which are symmetrically arranged on both sides of the central mounting groove 42. By setting two oil filling plugs 8, the oil filling efficiency can be effectively improved.
[0035] The lower sealing silicone 3 has a positioning boss 33 between the connecting cylinder 44 and the oil injection column 46. The positioning boss 33 can improve the stability of the position between the lower sealing silicone 3 and the cartridge base 4.
[0036] The electrode component 6 is an electrode metal sleeve, which is fitted onto the lower end of the cartridge body 1. The atomizing core assembly 2 is provided with a first pin 21 and a second pin 22. The electrode metal sleeve is provided with a clearance hole 61 that cooperates with the central electrode block 5. The clearance hole 61 can prevent the central electrode block 5 from contacting the electrode metal sleeve. The first pin 21 is electrically connected to the central electrode block 5, and the second pin 22 is electrically connected to the electrode metal sleeve.
[0037] The two probes of the cigarette rod contact the central electrode block 5 and the electrode metal sleeve respectively to make electrical connections. By setting the electrode metal sleeve, the contact area for establishing an electrical connection between the electrode and the pin of the cigarette rod can be effectively increased, thereby improving the product yield. Furthermore, the central electrode block 5 is set in the center position, which can effectively prevent the positive and negative electrodes from being reversed with the pin of the cigarette rod, thus effectively improving the user experience.
[0038] The cartridge base 4 is provided with a first pin hole 47 that mates with the first pin 21. The first pin 21 is disposed in the first pin hole 47. The lower end face of the cartridge base 4 is provided with a first wiring groove 48 that mates with the first pin 21. The first pin 21 passes through the first pin hole 47 and the first wiring groove 48 in sequence and is disposed in the central mounting groove 42. The first wiring groove 48 can prevent the first pin 21 from contacting the electrode metal sleeve.
[0039] The cartridge base 4 has a second pin hole 49 on the side of the oil filling hole 45, and the second pin 22 is set in the second pin hole 49. The lower end face of the cartridge base 4 has a second wiring groove 50 that cooperates with the second pin 22. The second pin 22 passes through the second pin hole 49 and the second wiring groove 50 in sequence and is set in the oil filling hole 45. The oil filling plug 8 is made of metal. The second wiring groove 50 can position the second pin 22. The second pin 22 is electrically connected to the oil filling plug. The oil filling plug is electrically connected to the electrode metal sleeve.
[0040] As can be seen from the above, the beneficial effects of this utility model are: by adopting its structure, it can effectively solve the problem in the prior art where the electrode of the tobacco cartridge is placed in the center position, which occupies the air intake space at the lower end of the main air channel of the tobacco cartridge and affects the vaping experience. Through the cooperation of the air intake hole 41, the air channel groove 43 and the air intake notch 441, the inner wall of the lower sealing silicone 3 and the air channel groove 43 form an air intake channel, which moves the air intake of the tobacco cartridge to the side and guides it through the air intake channel, and finally flows into the atomizing core assembly 2 from the air intake notch 441. This effectively solves the problem of occupying the air intake space by placing the central electrode block 5 in the center position, and improves the user's vaping experience.
[0041] The specific embodiments described above are preferred embodiments of this utility model, and are not intended to limit the specific scope of this utility model. The scope of this utility model includes but is not limited to the specific embodiments described above. All equivalent changes made in accordance with this utility model are within the protection scope of this utility model.
Claims
1. An airway structure of a fool-proof cartridge for an electronic cigarette, characterized by: The device includes a cartridge body, an atomizing core assembly, and a lower sealing oil assembly. The atomizing core assembly is disposed within the cartridge body, and the lower sealing oil assembly is disposed at the lower end of the cartridge body. The lower sealing oil assembly includes a lower sealing silicone, a cartridge base, a central electrode block, and an electrode component. The central electrode block and the electrode component are respectively the positive or negative terminals connected to electricity. The lower end face of the cartridge base is provided with an air inlet and a central mounting groove. The central electrode block is disposed in the central mounting groove, and the air inlet is disposed on the side of the central mounting groove. An air passage groove and a connecting cylinder are provided inside the cartridge base. The lower sealing silicone is sleeved on the cartridge base, and the inner wall of the lower sealing silicone and the air passage groove form an air intake channel. One end of the air intake channel communicates with the air inlet. The lower end of the atomizing core assembly is installed in the connecting cylinder, and the connecting cylinder is provided with an air intake notch communicating with the other end of the air intake channel. Gas from the air inlet can flow into the atomizing core assembly through the air intake notch.
2. The airway structure of a fool-proof cartridge for an electronic cigarette according to claim 1, characterized in that: The connecting tube and the cartridge base are integrally formed, and the lower sealing silicone is provided with mounting holes that cooperate with the atomizing core assembly.
3. The airway structure of the foolproof cartridge for electronic cigarettes according to claim 1, characterized in that: There are two air inlets, two air passage slots, and two air inlet gaps. The two air inlets are respectively located on both sides of the central electrode block.
4. The airway structure of the foolproof cartridge for electronic cigarettes according to claim 1, characterized in that: Oil-absorbing cotton is installed inside the airway groove.
5. The airway structure for a foolproof cartridge for electronic cigarettes according to any one of claims 1-4, characterized in that: The lower sealing oil assembly also includes an oil injection plug. The cartridge base is provided with an oil injection hole. An oil injection column extends inward from the cartridge base at a position corresponding to the oil injection hole. The lower sealing silicone is provided with an oil injection sealing hole that cooperates with the oil injection column. The oil injection plug is disposed in the oil injection hole.
6. The airway structure of the foolproof cartridge for electronic cigarettes according to claim 5, characterized in that: The number of oil injection plugs is two, and the two oil injection plugs are symmetrically arranged on both sides of the central mounting groove.
7. The airway structure for a foolproof cartridge for electronic cigarettes according to claim 5, characterized in that: The lower sealing silicone is provided with a positioning boss between the connecting cylinder and the oil injection column.
8. The airway structure of the foolproof cartridge for electronic cigarettes according to claim 5, characterized in that: The electrode component is an electrode metal sleeve, which is fitted onto the lower end of the cartridge body. The atomizing core assembly is provided with a first pin and a second pin. The electrode metal sleeve is provided with a clearance hole that cooperates with the central electrode block. The clearance hole can prevent the central electrode block from contacting the electrode metal sleeve. The first pin is electrically connected to the central electrode block, and the second pin is electrically connected to the electrode metal sleeve.
9. The airway structure for a foolproof cartridge for electronic cigarettes according to claim 8, characterized in that: The cartridge base is provided with a first pin hole that mates with the first pin. The first pin is disposed in the first pin hole. The lower end face of the cartridge base is provided with a first wiring groove that mates with the first pin. The first pin passes through the first pin hole and the first wiring groove in sequence and is disposed in the central mounting groove. The first wiring groove can prevent the first pin from contacting the electrode metal sleeve.
10. The airway structure of the foolproof cartridge for electronic cigarettes according to claim 8, characterized in that: The cartridge base has a second pin hole on the side of the oil filling hole, and the second pin is disposed in the second pin hole. The lower end face of the cartridge base has a second wiring groove that cooperates with the second pin. The second pin passes through the second pin hole and the second wiring groove in sequence and is disposed in the oil filling hole. The oil filling plug is made of metal. The second wiring groove can position the second pin. The second pin is electrically connected to the oil filling plug. The oil filling plug is electrically connected to the electrode metal sleeve.