Smoke cartridge capable of preventing residual liquid from accumulating and electronic atomization device

Abstract

The utility model relates to a cigarette cartridge and an electronic atomization device for preventing residual liquid from accumulating, the cigarette cartridge comprises a shell, an atomization core, a sealing seat and a base, an oil storage bin is formed in the shell, the bottom of the oil storage bin is sequentially provided with the sealing seat and the base downwards, a residual liquid cavity is formed in the base, and the residual liquid cavity is correspondingly communicated with the atomization core. An oil carrying table higher than the bottom of the residual liquid cavity is arranged in the residual liquid cavity, the oil carrying table is located below the atomizing core and provided with an air hole with the liquid locking capacity, the air hole is communicated with external air and the atomizing core, an oil return channel is arranged on the sealing seat, one end of the oil return channel is communicated to the atomizing core, and the other end of the oil return channel extends towards the bottom of the residual liquid cavity. And a backflow gap for the residual liquid to enter along with the air flow is formed between the baffle and the bottom of the residual liquid cavity. According to the improved smoke cartridge, the residual liquid in the residual liquid cavity is subjected to backflow atomization again through the oil carrying table and the oil return channel, accumulation of the residual liquid is avoided, and outflow of the residual liquid is reduced.

Description

Technical Field

[0001] The utility model relates to the field of electronic atomization devices. Background Art

[0002] The electronic atomization device atomizes and outputs e-liquid through the atomization core in the cartridge. During the storage process of the e-liquid, there is a certain probability of leakage. During the atomization process, a certain amount of condensate will also be generated. The leaked e-liquid and condensate will drip into the residual liquid cavity through the atomization channel of the atomization core. If the amount of residual liquid in the residual liquid cavity accumulates, it is easy to flow out of the cartridge along the external air passage. Therefore, there is room for improvement in existing cartridges. Summary of the Utility Model

[0003] The technical problem solved by the present disclosure is to provide an improved cartridge that can better avoid the accumulation of residual liquid, and an electronic atomization device having such a cartridge.

[0004] The technical solution adopted by the utility model to solve its technical problems is: a cartridge for preventing the accumulation of residual liquid, the cartridge includes a housing, an atomization core, a sealing seat and a base. An oil storage chamber is formed in the housing. The sealing seat and the base are sequentially installed downward from the bottom of the oil storage chamber. The atomization core is installed on the sealing seat and is located in the oil storage chamber. A residual liquid cavity is formed on the base, and the residual liquid cavity is correspondingly communicated with the atomization core.

[0005] A liquid-carrying platform higher than the cavity bottom is arranged in the residual liquid cavity. The liquid-carrying platform is located below the atomization core. The liquid-carrying platform is provided with air holes having a liquid-locking ability. The air holes communicate the external air with the atomization core, so that the residual liquid attached to the surface of the liquid-carrying platform flows back to the atomization core under the action of air flow; a oil return channel is provided on the sealing seat. One end of the oil return channel is communicated with the atomization core, and the other end of the oil return channel extends towards the bottom of the residual liquid cavity, and a return gap for the residual liquid to enter with the air flow is formed between the other end and the bottom of the residual liquid cavity.

[0006] A cartridge for preventing the accumulation of residual liquid as described above, the surface of the liquid-carrying platform is a curved surface protruding upward.

[0007] A cartridge for preventing the accumulation of residual liquid as described above, the bottom surface of the residual liquid cavity bulges upward locally to form the liquid-carrying platform, and several of the air holes longitudinally penetrate the surface of the liquid-carrying platform.

[0008] A cartridge for preventing the accumulation of residual liquid as described above, a slot is opened in the middle of the sealing seat, the bottom of the atomization core is inserted into the slot, a through hole is opened at the bottom of the slot, and the atomization channel of the atomization core is communicated with the through hole.

[0009] As described above, a cartridge for preventing residual liquid accumulation, wherein the oil return channel includes a first channel section and a second channel section. The first channel section is disposed in the slot, one end of which communicates with the atomization channel. The second channel section is disposed on the outer bottom surface of the sealing seat, the upper part of which communicates with the other end of the first channel section, and the lower part extends vertically downward.

[0010] As described above, a cartridge for preventing residual liquid accumulation, wherein the first channel section is disposed on the bottom surface of the slot, and the upper part thereof is open.

[0011] As described above, a cartridge for preventing residual liquid accumulation, wherein the inner peripheral edge of the through hole extends beyond the inner periphery of the atomization channel, and one end of the first channel section extends to the inner peripheral edge of the through hole to communicate with the atomization channel.

[0012] As described above, a cartridge for preventing residual liquid accumulation, wherein two oil return channels are provided on the sealing seat, and the two oil return channels are respectively located on both sides of the oil carrier platform.

[0013] As described above, a cartridge for preventing residual liquid accumulation, wherein the distance between the surface of the oil carrier platform and the through hole ranges from 6 mm to 12 mm; the width of the reflux gap ranges from 0.05 mm to 0.3 mm.

[0014] An electronic atomization device includes a main body. The electronic atomization device further includes a cartridge as described in any one of the preceding items, and the cartridge is assembled with the main body.

[0015] Advantages of the present disclosure: During the suction process, the air flow flows through the air holes of the oil carrier platform to the atomization core. The air flow takes the residual liquid on the surface of the oil carrier platform back to the atomization core for re-atomization; while the residual liquid at the bottom of the residual liquid cavity flows through the reflux gap to the oil return channel under the action of the air flow and returns to the atomization core for re-atomization. Thus, the condensate and leaked e-liquid in the cartridge are difficult to accumulate in the residual liquid cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Some specific embodiments of the present invention will be described in detail below in an exemplary and non-limiting manner. The same reference numerals in the drawings denote the same or similar components or parts. Those skilled in the art should understand that these drawings are not necessarily drawn to scale.

[0017] In the drawings:

[0018] Figure 1 is a schematic diagram of the cartridge of the present invention;

[0019] Figure 2 is a schematic cross-sectional view of the cartridge of the present invention;

[0020] Figure 3Exploded schematic view of the cartridge of the present utility model in cross-section;

[0021] Figure 4 First schematic view of the sealing seat in the cartridge of the present utility model;

[0022] Figure 5 Second schematic view of the sealing seat in the cartridge of the present utility model;

[0023] Figure 6 Schematic view of the base in the cartridge of the present utility model;

[0024] Explanation of the markings in the figure is as follows:

[0025] 1. Cartridge; 2. Housing; 3. Atomization core; 30. Atomization channel; 4. Sealing seat; 40. Oil return channel; 401. First channel section; 402. Second channel section; 41. Return gap; 42. Slot; 420. Through hole; 5. Base; 50. Residual liquid cavity; 51. Oil loading platform; 52. Air hole; 6. Oil storage chamber. Detailed implementation mode

[0026] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are some but not all of the embodiments of the present utility model.

[0027] Based on the described embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present utility model. Unless otherwise defined, the technical terms or scientific terms used in this disclosure shall have the ordinary meaning as understood by those of ordinary skill in the art to which the present utility model belongs.

[0028] The "first", "second" and similar terms used in this disclosure do not denote any order, quantity or importance, but are only used to distinguish different components. Similarly, the terms such as "a", "one" or "the" do not denote a quantity limitation, but mean that there is at least one. The terms such as "comprising" or "including" mean that the elements or objects appearing before this term cover the elements or objects listed after this term and their equivalents, without excluding other elements or objects. The terms such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The terms such as "upper", "lower", "left" and "right" are only used to represent relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0029] Refer to the appendix Figures 1-6, shown is an atomizer cartridge for preventing residual liquid accumulation. The atomizer cartridge 1 includes a housing 2, an atomization core 3, a sealing seat 4, and a base 5. An oil storage chamber 6 is formed inside the housing 2. The sealing seat 4 and the base 5 are successively installed downward from the bottom of the oil storage chamber 6. The atomization core 3 is installed on the sealing seat 4 and is located in the oil storage chamber 6. A residual liquid chamber 50 is formed on the base 5, and the residual liquid chamber 50 communicates with the atomization core 3 correspondingly.

[0030] A liquid-carrying platform 51 higher than the bottom of the residual liquid chamber 50 is arranged in the residual liquid chamber 50. The liquid-carrying platform 51 is located below the atomization core 3. The liquid-carrying platform 51 is provided with air holes 52 having the ability to lock liquid. The air holes 52 communicate the external air with the atomization core 3, so that the residual liquid attached to the surface of the liquid-carrying platform 51 flows back to the atomization core 3 under the action of air flow. An oil return channel 40 is provided on the sealing seat 4. One end of the oil return channel 40 communicates with the atomization core 3, and the other end of the oil return channel 40 extends towards the bottom of the residual liquid chamber 50, and a return gap 41 for the residual liquid to enter with the air flow is formed between the other end and the bottom of the residual liquid chamber 50.

[0031] The housing 2 of the atomizer cartridge 1 can be made of metal material, having better texture. A cavity structure is formed inside the housing 2, and the bottom is sealed by the sealing seat 4 to form the oil storage chamber 6. A mouthpiece is formed at the top of the housing 2 for the user to suck. The atomization core 3 is installed on the sealing seat 4 and is inside the oil storage chamber 6. A longitudinally penetrating atomization channel 30 is arranged inside it. The atomization channel 30 communicates with the mouthpiece. The e-liquid in the oil storage chamber 6 enters the atomization core 3 and is atomized to form smoke, and the smoke flows towards the mouthpiece along the atomization channel 30. The e-liquid in the oil storage chamber 6 continuously penetrates into the atomization core 3. After long-term use, a little e-liquid will drip downward from the atomization channel 30. At the same time, condensate will also drip in the atomization channel 30. The two kinds of residual liquids will fall onto the surface of the liquid-carrying platform 51 or the bottom of the residual liquid chamber 50.

[0032] The oil-carrying platform 51 is arranged below the atomizer core 3. The residual liquid accumulated on the surface of the oil-carrying platform 51 is usually a thin layer. The excess residual liquid will flow to the residual liquid chamber 50, and the small amount of residual liquid left on the surface can be taken away and sent back to the atomizer core 3 under a small suction force. Therefore, the distance between the oil-carrying platform 51 and the atomizer core 3 can be large, and the residual liquid on the surface of the oil-carrying platform 51 can still be returned while ensuring smooth airflow. It has been proved through many experiments that the distance between the oil-carrying platform 51 and the atomizer core 3 can be controlled between 6mm-12mm. The pores 52 on the oil-carrying platform 51 have a small aperture, so that it has the ability to lock liquid. For example, the aperture is set to 0.1mm, and the viscous residual liquid is locked on the surface of the pores 52 under the action of tension, and it is difficult to enter the inside of the pores 52, so as to avoid a large amount of residual liquid accumulating in the pores 52 and causing blockage. When the user draws air through the mouthpiece, external air enters the cartridge 1, flows to the atomizer core 3 through the air hole 52, and takes the residual liquid on the oil carrier 51 back to the atomizer core 3 for re-atomization. At the same time, the airflow inhaled by the user's suction action flows into the residual liquid chamber 50 through the air hole 52, and part of the airflow enters the oil return channel 40. The residual liquid at the bottom of the residual liquid chamber 50 is sucked into the oil return channel 40 through the reflux gap 41, and flows back to the atomizer core 3 along the oil return channel 40 for re-atomization. The amount of residual liquid in the residual liquid chamber 50 is greater than the amount of residual liquid on the surface of the oil carrier 51, and there will be a certain amount of accumulation, and a larger suction force is required to reflux the residual liquid. Therefore, the width of the reflux gap 41 is narrowed to generate sufficient suction for the residual liquid at the bottom of the chamber. After many experiments, it has been proved that the width range of the reflux gap 41 is more suitable between 0.05mm-0.3mm, preferably 0.1mm. As a result, the residual liquid in the residual liquid chamber 50 is difficult to accumulate in large quantities, which can effectively prevent the residual liquid from flowing out.

[0033] In some embodiments, the surface of the oil loading platform 51 is an upwardly convex curved surface, which is conducive to the residual liquid flowing downward to the bottom of the residual liquid chamber 50, avoiding a large amount of residual liquid from accumulating on the surface. If too much residual liquid accumulates on the surface, it will affect the airflow and the driving reflux effect on the residual liquid. The residual liquid in the residual liquid chamber 50 can flow back to the atomization core 3 through the reflux channel for atomization.

[0034] The oil loading platform 51 can be arranged in various forms, and can be assembled with the base 5 by using components, but the present embodiment preferably adopts an integral molding with the base 5. The base 5 is usually made of hard plastic material, and the bottom surface of the residual liquid cavity 50 is partially raised upward to form the oil loading platform 51. A plurality of air holes 52 longitudinally penetrate the surface of the oil loading platform 51. After the external air enters, it flows into the residual liquid cavity 50 and the atomization core 3 through the air holes 52. The plurality of air holes 52 are evenly distributed on the oil loading platform 51, and are usually in the shape of round holes.

[0035] In some embodiments, a slot 42 is provided in the middle of the sealing seat 4, the bottom of the atomizer core 3 is inserted into the slot 42, a through hole 420 is provided at the bottom of the slot 42, and the atomization channel 30 of the atomizer core 3 is connected to the through hole 420. The slot 42 is cylindrical, the bottom of the atomizer core 3 is inserted therein, and a sealing ring can be provided between the side walls of the two to enhance the sealing. The longitudinal atomization channel 30 in the middle of the atomizer core 3 is correspondingly connected to the through hole 420, so that the external air flowing in through the air port can smoothly enter the atomization channel 30.

[0036] In some embodiments, the oil return channel 40 includes a first channel section 401 and a second channel section 402. The first channel section 401 is arranged in the slot 42, and one end of the first channel section 401 is connected to the atomization channel 30. The second channel section 402 is arranged on the outer bottom surface of the sealing seat 4, and the upper part of the second channel section 402 is connected to the other end of the first channel section 401, and the lower part of the second channel section 402 extends longitudinally downward.

[0037] Specifically, a first channel section 401 is opened on the bottom surface of the slot 42, and the upper part of the first channel section 401 is open so as to communicate with the atomization channel 30; a columnar structure extending downward is set on the outer bottom surface of the sealing seat 4, and the inside of the columnar structure is connected to form a second channel section 402.

[0038] In some embodiments, the inner periphery edge of the through hole 420 at the bottom of the slot 42 exceeds the inner periphery of the atomizing channel 30, and one end of the first channel section 401 extends to the inner periphery edge of the through hole 420 to connect with the atomizing channel 30. That is, the inner diameter of the through hole 420 is small, while the inner diameter of the atomizing channel 30 is large. When the atomizing core 3 is inserted into the slot 42, the through hole 420 is correspondingly connected with the atomizing channel 30, and at the same time, since the through hole 420 is small, its inner periphery edge protrudes from the inner periphery of the atomizing channel 30. The first channel section 401 is arranged along the bottom of the slot 42 and extends to the inner periphery edge of the through hole 420, so it just enters the atomizing channel 30 and connects with it, and its upper part is open, so that the refluxed residual liquid is heated and atomized again.

[0039] Generally, two or more oil return passages 40 are provided on the sealing seat 4 , and the two oil return passages 40 are located at both sides of the oil carrying platform 51 , so that the residual liquid at various locations at the bottom of the residual liquid chamber 50 can flow back.

[0040] An electronic atomization device is provided, comprising a main unit, the electronic atomization device further comprising a cigarette cartridge 1 as described in any of the preceding items, the cigarette cartridge 1 being assembled on the main unit.

[0041] In summary, the improved cigarette cartridge 1 refluxes and atomizes the residual liquid in the residual liquid chamber 50 again through the oil loading platform 51 and the oil return channel 40, thereby avoiding the accumulation of residual liquid and reducing the outflow of residual liquid.

[0042] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, the present utility model can have various modifications, combinations, and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the scope of the claims of the present utility model.

Claims

1. A cigarette cartridge for preventing residual liquid accumulation, the cigarette cartridge comprising a shell, an atomizing core, a sealing seat and a base, an oil storage bin formed in the shell, the sealing seat and the base being sequentially installed downward from the bottom of the oil storage bin, the atomizing core being installed on the sealing seat and located in the oil storage bin, a residual liquid cavity being formed on the base, the residual liquid cavity being correspondingly connected to the atomizing core, characterized in that: The residual liquid cavity is provided with an oil-carrying platform higher than the bottom of the cavity, the oil-carrying platform is located below the atomizer core, and the oil-carrying platform is provided with an air hole with liquid-locking capability, the air hole connects the external air with the atomizer core, so that the residual liquid attached to the surface of the oil-carrying platform can flow back to the atomizer core under the action of the airflow; An oil return channel is provided on the sealing seat, one end of the oil return channel is connected to the atomizer core, and the other end of the oil return channel extends toward the bottom of the residual liquid chamber, and a reflux gap is formed between the oil return channel and the bottom of the residual liquid chamber for the residual liquid to enter with the airflow.

2. A cigarette cartridge for preventing residual liquid accumulation as claimed in claim 1, characterized in that: The surface of the oil loading platform is an upwardly convex curved surface.

3. A cigarette cartridge for preventing residual liquid accumulation as claimed in claim 2, characterized in that: The bottom surface of the residual liquid cavity partially bulges upward to form the oil-carrying platform, and a plurality of the air holes penetrate the surface of the oil-carrying platform longitudinally.

4. A cigarette cartridge for preventing residual liquid accumulation as claimed in claim 3, characterized in that: A slot is provided in the middle of the sealing seat, the bottom of the atomizer core is inserted into the slot, a through hole is provided at the bottom of the slot, and the atomization channel of the atomizer core is connected to the through hole.

5. A cigarette cartridge for preventing residual liquid accumulation as claimed in claim 4, characterized in that: The oil return channel includes a first channel section and a second channel section. The first channel section is arranged in the slot, and one end of the first channel section is connected to the atomization channel. The second channel section is arranged on the outer bottom surface of the sealing seat, and the upper part of the second channel section is connected to the other end of the first channel section, and the lower part of the second channel section extends longitudinally downward.

6. A cigarette cartridge for preventing residual liquid accumulation as claimed in claim 5, characterized in that: The first channel section is arranged on the bottom surface of the slot, and the upper part thereof is open.

7. A cigarette cartridge for preventing residual liquid accumulation as claimed in claim 6, characterized in that: The inner periphery edge of the through hole exceeds the inner periphery of the atomization channel, and one end of the first channel section extends to the inner periphery edge of the through hole to communicate with the atomization channel.

8. A cigarette cartridge for preventing residual liquid accumulation as claimed in claim 7, characterized in that: The sealing seat is provided with two oil return passages, and the two oil return passages are located at two sides of the oil loading platform.

9. A cigarette cartridge for preventing residual liquid accumulation as claimed in claim 8, characterized in that: The distance between the surface of the oil loading platform and the through hole is in the range of 6mm-12mm; The width of the reflux gap ranges from 0.05 mm to 0.3 mm.

10. An electronic atomization device, comprising a host, characterized in that: The electronic atomization device further comprises a cigarette cartridge as described in any one of claims 1 to 9, and the cigarette cartridge is assembled with the host.

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