Cigarette cartridges and electronic cigarettes that prevent oil leakage from the flue

Abstract

The present invention provides a smoke cartridge and an electronic cigarette for preventing oil leakage from a flue, and relates to the technical field of smoking utensils. The smoke cartridge for preventing oil leakage from a flue of the present invention comprises an oil tank for storing smoke oil, wherein a containing chamber for containing smoke oil is formed in the oil tank; a mouthpiece, an atomizing device, an oil tank base, and an end cover, wherein the end cover is formed with an air inlet and a first flue, wherein the first flue is located on the side of the oil tank opposite to the smoking port, and the side of the atomizing device opposite to the oil tank is located in the first flue; the oil tank and the oil tank base are formed with a second flue, wherein the second flue is located on the side of the atomizing device opposite to the air inlet. The electronic cigarette for preventing oil leakage from a flue of the present invention comprises a smoke cartridge and a power supply device electrically connected to the smoke cartridge. The smoke cartridge and the electronic cigarette for preventing oil leakage from a flue of the present invention can solve the technical problem that the existing electronic cigarette flue is prone to oil leakage and the smoke generated by atomization cannot be fully burned.

Description

Technical Field

[0001] The invention relates to the technical field of smoking articles, in particular to a cigarette cartridge and an electronic cigarette for preventing oil leakage from a flue. Background Art

[0002] Electronic cigarettes are a new type of electronic product that looks similar to ordinary cigarettes and has the same taste as ordinary cigarettes. Since electronic cigarettes heat the oil through an atomizer to produce smoke that can be inhaled, compared with traditional cigarettes, electronic cigarettes do not burn, and there are no harmful chemicals produced after combustion. There is no "second-hand smoke" that harms others and pollutes the environment. Therefore, electronic cigarettes are healthier and more environmentally friendly than traditional cigarettes.

[0003] The atomization device of the electronic cigarette atomizes the oil in the cartridge and burns it with air to form smoke. The smoke flows from the smoke duct set in the cartridge to the mouthpiece for the user to inhale. Since the smoke ducts in the cartridges are linear in the prior art, the oil in the oil tank is easy to leak along the linear direction of the smoke duct. In addition, with the linear smoke duct, the air and the oil cannot fully contact, resulting in the smoke generated by atomization cannot be fully burned, which seriously affects the taste of the electronic cigarette. Summary of the invention

[0004] In view of this, the utility model provides a cigarette cartridge and an electronic cigarette for preventing oil leakage from the flue, so as to solve the technical problem that the flue of the existing electronic cigarette is prone to oil leakage and the smoke generated by atomization cannot be fully burned.

[0005] In a first aspect, the present invention provides a smoke bomb for preventing oil leakage from a smoke duct, the smoke bomb comprising:

[0006] An oil tank for storing tobacco oil, wherein a containing chamber for containing tobacco oil is formed in the oil tank;

[0007] A cigarette holder sleeved on the oil tank, wherein a smoking opening is formed on the cigarette holder;

[0008] An atomizing device for atomizing the smoke oil, one end of the containing chamber of the oil tank being in communication with the atomizing device;

[0009] An oil tank base connected to an end of the oil tank close to the atomizing device;

[0010] An end cover is provided on an end of the atomizing device opposite to the oil tank, the end cover is formed with an air inlet and a first flue, the first flue is located on a side of the oil tank opposite to the air inlet, and a side of the atomizing device opposite to the oil tank is located in the first flue;

[0011] The oil tank and the oil tank base form a second flue for guiding the smoke in the first flue to flow toward the smoking port. The second flue is located on the side of the atomization device opposite to the air inlet, and the airflow direction of the second flue forms a preset angle with the airflow direction of the first flue.

[0012] Preferably, one end of the second flue is connected to the smoking port, and the other end is connected to the end of the first flue opposite to the air inlet. The first flue is used to allow the air flowing in from the air inlet to fully burn with the atomized tobacco oil in the first flue and then flow from the second flue to the smoking port.

[0013] Preferably, the atomization device comprises an atomization core and a coating layer coated on the outer wall of the atomization core for isolating the first flue from the oil tank accommodating chamber, and a through hole connecting the accommodating chamber with the atomization core is formed on the oil tank base.

[0014] Preferably, the end surface of the oil tank base opposite to the oil tank extends toward the direction of the atomizing device to form an annular enclosure, and the enclosure and the end surface of the oil tank base opposite to the oil tank together form a accommodating space for accommodating the atomizing device, the atomizing device is located in the accommodating space, and the coating layer fills the gap between the enclosure and the atomizing device.

[0015] Preferably, an electrode mounting hole for mounting an electrode is formed at the end of the end cap opposite to the atomization device, and the cigarette cartridge also includes a second condensate baffle, which is in close contact with the inner wall of the end cap on the side close to the electrode, and the inner wall of the end cap on the side close to the electrode is spaced a preset distance from the end face of the oil tank facing the atomization device.

[0016] Preferably, the cigarette cartridge further comprises a first condensate baffle which is closely attached to the end surface of the oil tank facing the cigarette holder, and the peripheral wall of the first condensate baffle is closely attached to the inner wall of the cigarette holder.

[0017] Preferably, the cigarette holder is shell-shaped, and a pressing structure is formed on the inner wall of the cigarette holder opposite to the first condensate baffle to press the first condensate baffle against the end surface of the oil tank facing the smoking port of the cigarette holder toward the oil tank.

[0018] Preferably, the cigarette cartridge further comprises a condensate retaining ring for preventing condensate on the outer wall of the oil tank from flowing toward the cigarette holder, and the condensate retaining ring is an annular structure extending from the end surface of the oil tank facing the cigarette holder's smoking port toward the cigarette holder's smoking port.

[0019] Preferably, the first flue is formed by an oil tank base and an oil tank; the oil tank base and the oil tank are formed with a first ultrasonic welding structure that isolates the joint between the oil tank base and the oil tank on the first flue from the accommodating chamber, the first ultrasonic welding structure includes a first annular protrusion formed by the side of the oil tank base connected to the oil tank extending toward the oil tank and a first annular groove formed by the side of the oil tank connected to the oil tank base being recessed in a direction opposite to the oil tank base, the first annular protrusion is inserted into the first annular groove at one end facing the first annular groove and is ultrasonically welded to the first annular groove. .

[0020] In a second aspect, the present invention provides an electronic cigarette for preventing oil leakage from a flue, wherein the electronic cigarette comprises the cartridge according to the first aspect and a power supply device electrically connected to the cartridge.

[0021] Beneficial effects: The cigarette cartridge and electronic cigarette for preventing oil leakage in the flue of the present invention divide the flue into a first flue and a second flue that are at a certain angle to each other. The first flue is located on the side of the oil tank opposite to the smoking port. Since the side of the atomizer core opposite to the oil tank is located in the first flue, air flows into the first flue from the air inlet and directly flows into the lower surface of the atomizer core, and fully contacts the smoke oil in the first flue, so that the atomized smoke can be fully burned. Since the second flue is located on the side of the atomizer device opposite to the air inlet, the second flue is far away from the oil tank and the connection position between the oil tank and the atomizer device, and forms an angle with the first flue, so that the smoke oil can be fully mixed, atomized and burned in the first channel before entering the second flue, and the smoke oil in the oil tank is difficult to leak from the position where the atomizer device is connected to the oil tank to the second flue. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings required for use in the embodiment of the present invention will be briefly introduced below. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work, and these are all within the protection scope of the present invention.

[0023] Figure 1 An exploded view of a smoke bomb with a positioning pin for preventing oil leakage from a smoke duct according to the present invention;

[0024] Figure 2 A cross-sectional view of a smoke bomb for preventing oil leakage from a smoke duct according to the present invention;

[0025] Figure 3 It is a structural schematic diagram of the oil tank base of the present invention;

[0026] Figure 4 It is a schematic diagram of the structure of the end cover of the present invention;

[0027] Figure 5 It is a schematic diagram of the structure of the cigarette holder of the present invention;

[0028] Figure 6 It is a schematic diagram of the structure of the electronic cigarette of the present invention.

[0029] Parts and numbers in the figure: cigarette cartridge 1, cigarette rod 2, oil tank 10, positioning pin 11, positioning hole 12, first annular groove 13, second annular groove 14, condensate baffle ring 15, cigarette holder 20, smoking port 21, atomization device 30, atomization core 31, coating layer 32, oil tank base 40, first annular protrusion 41, second annular protrusion 42, enclosure 43, end cover 50, mounting seat 51, air inlet 52, first flue 53, second flue 60, first column 61, connecting part 70, seam 80, iron sheet 90, first condensate baffle 100, second condensate baffle 110. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution in the embodiment of the present invention will be clearly and completely described in conjunction with the drawings in the embodiment of the present invention. It should be noted that, in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. In the description of the present invention, it should be understood that the orientation or position relationship indicated by the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present application 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 cannot be understood as a limitation of the present invention. Moreover, the term "include", "comprise" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such a process, method, article or device. In the absence of further restrictions, the elements defined by the phrase "comprising..." do not exclude the presence of other identical elements in the process, method, article or device comprising the elements. If there is no conflict, the various features in the embodiments and examples of the present invention can be combined with each other, all within the scope of protection of the present invention.

[0031] Embodiment 1:

[0032] like Figure 1As shown, this embodiment provides a cigarette cartridge 1 for preventing oil leakage from the smoke duct. The cigarette cartridge 1 of this embodiment is used in conjunction with a cigarette rod 2 with a power supply. The power supply provides electrical energy to the atomizer 30 of the cigarette cartridge 1, and the atomizer 30 converts the electrical energy into heat to atomize the oil stored in the oil tank 10 of the cigarette cartridge 1. When the user inhales at the mouthpiece 20, negative pressure is formed below the atomizer 30. Under the action of negative pressure, air enters the cigarette cartridge 1 from the air inlet 52 of the cigarette cartridge 1, and brings the atomized oil to the inhalation port 21 of the mouthpiece 20 along the internal air flow channel of the cigarette cartridge 1 for the convenience of the user to inhale.

[0033] like Figure 2 and Figure 3 As shown, the smoke bomb 1 for preventing oil leakage in the smoke duct of this embodiment includes:

[0034] An oil tank 10 for storing tobacco oil, wherein a receiving chamber for receiving tobacco oil is formed in the oil tank 10;

[0035] In this embodiment, the oil tank 10 is used as the oil storage component of the cigarette cartridge 1. In specific implementation, part of the material in the oil tank 10 can be removed to form a receiving chamber, or the oil tank 10 with the receiving chamber can be manufactured by an integrated molding method. The opening of the receiving chamber is opened on the side facing away from the smoking port 21, and the cigarette oil is injected into the receiving chamber from the aforementioned opening when the cigarette cartridge 1 is produced.

[0036] A cigarette holder 20 sleeved on the oil tank 10, wherein a smoking opening 21 is formed on the cigarette holder 20;

[0037] The mouthpiece 20 as a part of the shell of the cigarette cartridge 1 is sleeved on the outside of the oil tank 10 . When using, the user holds the mouthpiece 20 in his mouth and inhales, and the atomized smoke enters the user's mouth through the inhalation port 21 on the mouthpiece 20 .

[0038] An atomizing device 30 for atomizing the smoke oil, one end of the accommodating chamber of the oil tank 10 is in communication with the atomizing device 30;

[0039] The atomization device 30 includes an atomization core 31 and a coating layer 32 coated on the outer wall of the atomization core 31. In this embodiment, the atomization core 31 is preferably a ceramic atomization core 31 with good high temperature resistance. A heating component is provided in the atomization core 31, and when the atomization core 31 is powered on, the heating component generates heat for atomizing the e-liquid.

[0040] An oil tank base 40 connected to one end of the oil tank 10 close to the atomizing device 30;

[0041] The oil tank base 40 is used to seal the oil tank 10 .

[0042] An end cover 50 is provided on the end of the atomizing device 30 opposite to the oil tank 10, and the end cover 50 is formed with an air inlet 52 and a first flue 53, wherein the first flue 53 is located on the side of the oil tank 10 opposite to the inhalation port 21, and the side of the atomizing core 31 opposite to the oil tank 10 is located in the first flue 53, and an iron sheet 90 is further provided outside the end cover;

[0043] The oil tank 10 and the oil tank base 40 form a second flue 60 for guiding the smoke in the first flue 53 to flow toward the smoking port 21. The second flue 60 is located on the side of the atomization device 30 opposite to the air inlet 52. The airflow direction of the second flue 60 forms a preset angle with the airflow direction of the first flue 53.

[0044] This embodiment abandons the structural form of the linear flue of the prior art, and divides the flue into a first flue 53 and a second flue 60 at a certain angle to each other. The first flue 53 is located on the side of the oil tank 10 opposite to the smoking port 21. Since the side of the atomizer core 31 opposite to the oil tank 10 is located in the first flue 53, the air flows into the first flue 53 from the air inlet 52 and directly flows into the lower surface of the atomizer core 31, and fully contacts the smoke oil in the first flue 53, so that the atomized smoke can be fully burned. Since the second flue 60 is located on the side of the atomizer 30 opposite to the air inlet 52, the second flue 60 is far away from the oil tank 10 and the connection position between the oil tank 10 and the atomizer 30, and forms an angle with the first flue 53, so that the smoke oil can be fully mixed, atomized and burned in the first channel before entering the second flue 60, and the smoke oil in the oil tank 10 is difficult to leak from the position where the atomizer 30 is connected to the oil tank 10 to the second flue 60.

[0045] The specific structural form of the flue is: one end of the second flue 60 is connected to the smoking port 21, and the other end is connected to the end of the first flue 53 opposite to the air inlet 52. The first flue 53 is used to allow the air flowing in from the air inlet 52 to fully burn with the atomized tobacco oil in the first flue 53 and then flow from the second flue 60 to the smoking port 21.

[0046] The atomizing device 30 includes an atomizing core 31 and a coating layer 32 coated on the outer wall of the atomizing core 31 for isolating the first flue 53 from the accommodating chamber of the oil tank 10 . A through hole is formed on the oil tank base 40 to connect the accommodating chamber with the atomizing core 31 .

[0047] In this embodiment, the oil tank base 40 seals the accommodating chamber of the oil tank 10, isolates the interior of the accommodating chamber from the rest of the area, and forms a through hole connecting the accommodating chamber with the atomizer core 31, so that the smoke oil can only enter the atomizer device 30 through the through hole, thereby improving the sealing effect of the smoke bomb 1 on the oil tank 10. The coating layer 32 can be made of a silicone material with good elasticity. The coating layer 32 is coated on the outer surface of the atomizer core 31. On the one hand, it can protect the atomizer core 31, and on the other hand, it can isolate the space near the atomizer core 31 that is connected to the accommodating chamber of the oil tank 10 to form a sealed channel for gas flow from the air inlet 52 to the smoking port 21, so that the first flue 53 can form a negative pressure when the user inhales, so as to drive the air outside the smoke bomb 1 to flow in from the air inlet 52 through the first channel and the second channel, and finally flow to the smoking port 21.

[0048] The end surface of the oil tank base 40 opposite to the oil tank 10 extends toward the direction of the atomizing device 30 to form an annular enclosure 43, and the enclosure 43 and the end surface of the oil tank base 40 opposite to the oil tank 10 jointly enclose a storage space for accommodating the atomizing device 30. The atomizing device 30 is located in the storage space, and the coating layer 32 fills the gap between the enclosure 43 and the atomizing device 30. During assembly, the elasticity of the coating layer 32 is utilized to fully fill the gap between the enclosure 43 and the atomizing device 30, so as to completely isolate the area where the atomizing device 30 is connected to the oil tank 10 and the first flue 53.

[0049] In this embodiment, the cigarette cartridge 1 further comprises a first condensate baffle 100 which is closely attached to the end surface of the oil tank 10 facing the cigarette holder 20 , and the peripheral wall of the first condensate baffle 100 is closely attached to the inner wall of the cigarette holder 20 .

[0050] The first condensate baffle 100 can be made of materials such as high-density polyethylene or oil-absorbing cotton.

[0051] When the tobacco oil in the oil tank 10 leaks, it may flow into the smoking port 21 from the gap between the oil tank 10 and the inside of the cigarette holder 20. Therefore, in this embodiment, the first condensate baffle 100 also includes an adsorption layer for absorbing the tobacco oil flowing to the smoking port 21 of the cigarette holder 20. Since the first condensate baffle 100 is located between the opening of the oil tank 10 and the smoking port 21, the adsorption layer is arranged on the first condensate baffle 100 to absorb the tobacco oil before it flows into the smoking port 21. The adsorption layer can be composited on the first condensate baffle 100. When the first condensate baffle 100 is made of high-density polyethylene or oil-absorbing cotton, the entire first condensate baffle 100 serves as an oil-absorbing layer.

[0052] The outer surface of the first condensate baffle 100 includes a first surface facing the cigarette holder 20 and a second surface facing the oil tank 10, and the remaining surface is the peripheral wall of the first condensate baffle 100. When the peripheral wall of the first condensate baffle 100 is pressed against the inner wall of the cigarette holder 20, the interior of the cigarette holder 20 is divided into two mutually isolated spaces, one of which is connected to the smoking port 21 of the cigarette holder 20, and the other space includes the oil tank 10, the oil tank base 40, the atomizer and other components that are prone to produce condensate. Due to the separation effect of the first condensate baffle 100, the condensate is blocked outside the space connected to the smoking port 21 of the cigarette holder 20 and cannot enter the smoking port 21. Therefore, when the condensate in the cigarette cartridge 1 flows to the end surface of the oil tank 10 facing the cigarette holder 20, the first condensate baffle 100 can block the condensate and prevent the condensate from continuing to flow toward the smoking port 21 of the cigarette holder 20, thereby preventing the condensate in the cigarette cartridge 1 from flowing into the user's mouth.

[0053] In this embodiment, the cigarette holder 20 is shell-shaped, and a pressing structure is formed on the inner wall of the cigarette holder 20 opposite to the first condensate baffle 100 to press the first condensate baffle 100 against the end surface of the oil tank 10 facing the smoking port 21 of the cigarette holder 20 toward the oil tank 10.

[0054] In order to improve the isolation effect of the first condensate baffle 100, a pressing structure is arranged inside the cigarette holder 20 in this embodiment. The structure presses the first condensate baffle 100 against the end surface of the oil tank 10 facing the smoking port 21 of the cigarette holder 20 toward the oil tank 10, so that the position of the first condensate baffle 100 remains fixed, thereby preventing the first condensate baffle 100 from moving and causing condensate to leak into the smoking port 21.

[0055] The pressing structure is specifically a pressing plate formed by the inner wall of the shell-shaped cigarette holder 20 opposite to the first condensate baffle 100 extending toward the first condensate baffle 100, and the pressing plate presses the first condensate baffle 100 against the end face of the oil tank 10 facing the inhalation port 21 of the cigarette holder 20. When the cigarette cartridge 1 is assembled, the pressing plate is pressed against the first condensate baffle 100 in the direction of the oil tank 10 by the pressing force of the cigarette holder 20, so that it can be closely attached to the end face of the oil tank 10. In a specific implementation, the pressing plate includes a first pressing plate and a second pressing plate respectively located on both sides of the inhalation port 21. While pressing the first condensate baffle 100, the pressing plate is also closely attached to the first condensate baffle 100, so that the pressing plate and the first condensate baffle 100 can form an isolation structure as a whole, and the area near the inhalation port 21 of the cigarette holder 20 that is in communication with the inhalation port 21 is fully isolated from other areas inside the cigarette cartridge 1.

[0056] The cigarette cartridge 1 also includes a condensate retaining ring 15 for preventing condensate on the outer wall of the oil tank 10 from flowing toward the cigarette holder 20. The condensate retaining ring 15 is an annular structure formed by extending the end surface of the oil tank 10 facing the smoking port 21 of the cigarette holder 20 toward the smoking port 21 of the cigarette holder 20.

[0057] Specifically, the condensate retaining ring 15 is located directly below the mouthpiece 21. In this embodiment, the condensate retaining ring 15 is arranged to face the mouthpiece 20 and the mouthpiece 21, and the condensate retaining ring 15 can effectively shield the area of ​​the oil tank 10 near the mouthpiece 20 to prevent the condensate from flowing into the mouthpiece 20 from the area.

[0058] The outer wall of the condensate retaining ring 15 is formed with an inclined surface at a preset angle to the end surface of the oil tank 10 facing the cigarette holder 20. The outer wall of the condensate retaining ring 15 is set as an inclined surface to facilitate the condensate to slide down along the inclined surface and avoid the condensate to accumulate on the retaining ring.

[0059] In this embodiment, an electrode mounting hole for mounting an electrode is formed at the end of the end cover 50 opposite to the atomization device 30, and the cigarette cartridge 1 also includes a second condensate baffle 110, which is in close contact with the inner wall of the end cover 50 close to the electrode, and the inner wall of the end cover 50 close to the electrode is spaced a preset distance from the end face of the oil tank 10 facing the atomization device 30.

[0060] Due to the blocking effect of the first condensate baffle 100, the condensate cannot flow out from the smoking port 21, so the condensate in the cartridge 1 is easy to flow back from the end cover 50 to the circuit board of the electronic cigarette, causing damage to the circuit board. To this end, in this embodiment, a second condensate baffle 110 is set on the inner wall of the end cover 50 close to the electrode side, so as to separate the area where condensate is generated in the cartridge 1 from the circuit board in the electronic cigarette, and prevent the condensate from flowing from the area where condensate is generated in the cartridge 1 to the circuit board of the electronic cigarette, so that the service life of the electronic cigarette is significantly extended. In addition, in this embodiment, the inner wall of the end cover 50 close to the electrode side is spaced a preset distance from the end face of the oil tank 10 facing the atomization device 30. By setting a suitable spacing, the distance from the part of the cartridge 1 where condensate is easily generated to the circuit board can be increased, thereby reducing the probability of condensate flowing into the circuit board.

[0061] A mounting seat 51 is formed at the end of the end cover 50 opposite to the atomization device 30, and the mounting seat 51 forms a hollow structure serving as an electrode mounting hole. A first through hole is formed on the second condensate baffle 110, and the mounting seat 51 passes through the first through hole. A second through hole is formed on the second condensate baffle 110, and the air inlet 52 passes through the second through hole and is connected to the first flue 53.

[0062] The electrodes are used to electrically connect the power source and the atomization device 30. A heating component is provided in the atomization core 31, and the heating component generates heat for atomizing the e-liquid after the atomization core 31 is connected to the power source.

[0063] The tobacco oil stored in the accommodating chamber of the oil tank 10 enters the atomizer core 31, and the heating component in the atomizer core 31 heats the tobacco oil, so that it enters the first flue 53 after being atomized, and flows through the second flue 60 together with the airflow in the first flue 53 and then flows out from the inhalation port 21 of the cigarette holder 20. The coating layer 32 coated on the outer wall of the atomizer core 31 separates the accommodating chamber of the oil tank 10 from the first flue 53, so that the airflow channel between the first flue 53 and the inhalation port 21 forms a closed airflow channel, so that when the user inhales at the inhalation port 21, negative pressure can be generated in the first flue 53, so that the airflow mixed with the atomized tobacco oil continuously flows from the first flue 53 below the atomizer 30 to the inhalation port 21 under the action of negative pressure. During assembly, when the mounting seat 51 passes through the first through hole formed on the second condensate baffle 110, the inner wall of the first through hole is tightly attached to the outer wall of the mounting seat 51, isolating the hollow part of the mounting seat 51 from the area in the cigarette cartridge 1 where condensate is easily generated.

[0064] Example 2

[0065] In the present embodiment, the first flue 53 is formed by an oil tank base 40 and an oil tank 10; a first ultrasonic welding structure is formed on the oil tank base 40 and the oil tank 10 to isolate a joint 80 where the oil tank base 40 and the oil tank 10 on the first flue 53 are connected from the accommodating chamber, the first ultrasonic welding structure includes a first annular protrusion 41 formed by a side where the oil tank base 40 and the oil tank 10 are connected and extending toward the oil tank 10, and a first annular groove 13 formed by a side where the oil tank 10 and the oil tank base 40 are connected and recessed in a direction opposite to the oil tank base 40, the first annular protrusion 41 is inserted into the first annular groove 13 toward one end of the first annular groove 13 and is ultrasonically welded to the first annular groove 13.

[0066] Since the smoke oil in the receiving chamber needs to flow into the atomizing device 30 for atomization, the side of the receiving chamber opening faces the atomizing device 30. In order to seal the side of the receiving chamber opening, the oil tank base 40 is used in this embodiment to seal the end of the oil tank 10 close to the atomizing device 30. Since the smoke oil atomized by the atomizing device 30 first enters the second channel below the atomizing device 30, the present embodiment is provided with a flue to guide the smoke formed by the smoke oil atomized by the atomizing device 30 to flow from the second channel position to the smoke outlet 21. The flue is divided into two parts, one part is formed on the oil tank base 40, and the other part is formed on the oil tank 10. When the oil tank base 40 is assembled to the oil tank 10, a joint 80 will be formed at the contact surface of the oil tank base 40 and the oil tank 10. And the parts of the flue formed on the oil tank base 40 and the oil tank 10 will also have a gap after assembly, and the smoke oil in the receiving chamber of the oil tank 10 can easily flow into the flue from this gap. In this embodiment, a first ultrasonic welding structure is provided at the position where the oil tank base 40 and the oil tank 10 are connected by ultrasonic welding, and the seam 80 where the oil tank base 40 and the oil tank 10 on the flue are connected is completely isolated from the receiving chamber by the first ultrasonic welding structure, so that the smoke oil in the receiving chamber of the oil tank 10 cannot enter the flue through the seam 80 where the oil tank base 40 and the oil tank 10 on the flue are connected.

[0067] In order to better isolate the flue from the accommodation chamber, in this embodiment, the first ultrasonic welding structure surrounds the seam 80 where the oil tank base 40 and the oil tank 10 on the flue for at least one circle along the circumferential direction of the flue, so as to seal the flue outside the accommodation chamber. That is, the ultrasonic welding structure surrounds the periphery of the flue to form a closed structure, the flue is sealed in the ultrasonic welding structure, and the accommodation chamber is located outside the closed structure formed by the ultrasonic welding structure, so that the flue is well isolated from the accommodation chamber.

[0068] like Figure 2 and Figure 4 As shown, specifically, the first ultrasonic welding structure includes a first annular protrusion 41 formed by extending toward the oil tank 10 on a side where the oil tank base 40 is connected to the oil tank 10, and a first annular groove 13 formed by being recessed toward a direction opposite to the oil tank base 40 on a side where the oil tank 10 is connected to the oil tank base 40, wherein the first annular protrusion 41 is inserted into the first annular groove 13 toward one end of the first annular groove 13 and is ultrasonically welded to the first annular groove 13.

[0069] Specifically, the first annular protrusion 41 is embedded in the first annular groove 13, and pressure is applied to the oil tank 10 and the oil tank base 40 in a direction perpendicular to the plane of the oil tank base 40, and the high-frequency vibration wave generated by the ultrasonic welding machine is transmitted to the contact surface of the first annular protrusion 41 and the first annular groove 13, so that the surfaces of the two are rubbed against each other to form a fusion between the molecular layers, thereby forming an annular welding area surrounding the outside of the flue seam 80 and enclosing the flue seam 80 therein. The annular welding area can be any annular shape that can form a closed area, such as a circular ring, an elliptical ring, a rectangle, etc.

[0070] In order to improve the sealing effect, in this embodiment, the end of the first annular protrusion 41 facing the first annular groove 13 is formed with a wedge structure ultrasonically welded with the first annular groove 13, and the wedge structure is formed by a first welding surface and a second welding surface intersecting at a preset angle. The oil tank 10 is formed with a first column 61 extending from the end surface of the oil tank 10 facing the oil tank base 40 to the end surface of the oil tank 10 facing the smoking port 21, and the first column 61 includes a hollow structure for forming a flue, and the first annular groove 13 is formed on the end surface of the first column 61 facing the oil tank base 40. In order to form a flue with a stable structure, in this embodiment, a column with the same direction as the airflow direction in the flue is set in the axial direction of the oil tank 10, and the middle part of the column is made into a hollow structure, and the hollow structure is used as a flue.

[0071] The end of the first annular protrusion 41 of the present embodiment is set as a wedge-shaped structure, that is, the end of the cross section of the first annular protrusion 41 facing the first annular groove 13 is a wedge-shaped structure. On the one hand, since the wedge-shaped structure is easier to embed into the first annular groove 13, it can be convenient for positioning during assembly, which can ensure the subsequent welding effect. On the other hand, the wedge-shaped structure is composed of a first welding surface and a second welding surface, which can form two inner and outer annular welding areas in cooperation with the first annular groove 13, and can achieve two layers of sealing for the flue. A slight change to the original structure can double the reliability of the sealing. The angle at which the first welding surface and the second welding surface intersect can be determined according to the sealing effect.

[0072] A positioning pin 11 is formed at one end of the oil tank facing the oil tank base 40 , and a positioning hole 12 cooperating with the positioning pin 11 is formed at one end of the oil tank base 40 facing the oil tank. The positioning pin 11 is inserted into the positioning hole 12 at one end of the oil tank base 40 facing the oil tank.

[0073] When assembling the oil tank base 40 and the oil tank, align the positioning pin 11 on the oil tank with the positioning hole 12 on the oil tank base 40 and insert it to achieve accurate positioning of the oil tank base 40 and the oil tank, providing a reliable guarantee for the subsequent accurate completion of the ultrasonic welding of the first annular protrusion 41 and the first annular groove 13 to form the first ultrasonic welding structure.

[0074] The oil tank base 40 and the oil tank 10 also form a second ultrasonic welding structure that isolates the external space of the cigarette cartridge 1 from the accommodating chamber. The second ultrasonic welding structure is formed outside the accommodating chamber and surrounds the accommodating chamber for at least one circle to seal the accommodating chamber.

[0075] The second ultrasonic welding structure seals the storage chamber containing the smoke oil and isolates the storage chamber from the outside, which can effectively prevent the smoke oil in the oil tank 10 from leaking out of the smoke cartridge 1. The second ultrasonic welding structure can be arranged near the outer periphery of the oil tank 10.

[0076] In specific implementation, the second ultrasonic welding structure includes a second annular protrusion 42 formed by the side where the oil tank base 40 is connected to the oil tank 10 and extending toward the oil tank 10, and a second annular groove 14 formed by the side where the oil tank 10 is connected to the oil tank base 40 and recessed in the direction opposite to the oil tank base 40. One end of the second annular protrusion 42 facing the second annular groove 14 is inserted into the second annular groove 14 and is ultrasonically welded to the second annular groove 14.

[0077] To improve the sealing effect, the second annular protrusion 42 of this embodiment has a wedge structure ultrasonically welded to the second annular groove 14 at one end thereof, and the wedge structure is formed by a second welding surface and a second welding surface intersecting at a preset angle.

[0078] The oil tank 10 is sealed by ultrasonic welding, which can realize assembly line-type large-scale production, significantly improving the production efficiency of the cigarette cartridge 1. At the same time, the sealing effect is not affected by differences in manual operation levels, and the sealing effect of batch products is stable.

[0079] Example 3

[0080] like Figure 6 As shown, this embodiment provides an electronic cigarette for preventing oil leakage from a flue. The electronic cigarette includes the cartridge 1 in Embodiment 1 or Embodiment 2 and a power supply device electrically connected to the cartridge 1 .

[0081] The power supply device may be integrated on the cigarette rod 2, and the cigarette cartridge 1 and the cigarette rod 2 are connected in a detachable manner to facilitate replacement of the cigarette cartridge 1. The power supply device and the cigarette cartridge 1 may be electrically connected via electrodes.

[0082] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A smoke bomb for preventing oil leakage from the flue, characterized in that: The cigarette cartridge comprises: An oil tank for storing tobacco oil, wherein a containing chamber for containing tobacco oil is formed in the oil tank; A cigarette holder sleeved on the oil tank, wherein a smoking opening is formed on the cigarette holder; An atomizing device for atomizing the smoke oil, one end of the containing chamber of the oil tank being in communication with the atomizing device; An oil tank base connected to an end of the oil tank close to the atomizing device; An end cover is provided on an end of the atomizing device opposite to the oil tank, the end cover is formed with an air inlet and a first flue, the first flue is located on a side of the oil tank opposite to the air inlet, and a side of the atomizing device opposite to the oil tank is located in the first flue; The oil tank and the oil tank base form a second flue for guiding the smoke in the first flue to flow toward the smoking port, the second flue is located on the side of the atomizing device opposite to the air inlet, and the air flow direction of the second flue forms a preset angle with the air flow direction of the first flue; One end of the second flue is connected to the inhalation port, and the other end is connected to the end of the first flue opposite to the air inlet. The first flue is used to allow the air flowing in from the air inlet to fully burn with the atomized tobacco oil in the first flue and then flow from the second flue to the inhalation port. The atomizing device comprises an atomizing core and a coating layer coated on the outer wall of the atomizing core for isolating the first flue from the oil tank accommodating chamber. A through hole connecting the accommodating chamber with the atomizing core is formed on the oil tank base.

2. The smoke bomb for preventing oil leakage in the flue according to claim 1, characterized in that: The end surface of the oil tank base opposite to the oil tank extends toward the atomizing device to form an annular enclosure, and the enclosure and the end surface of the oil tank base opposite to the oil tank together form a accommodating space for accommodating the atomizing device. The atomizing device is located in the accommodating space, and the coating layer fills the gap between the enclosure and the atomizing device.

3. The smoke bomb for preventing oil leakage in the flue according to claim 1, characterized in that: An electrode mounting hole for mounting an electrode is formed at the end of the end cap opposite to the atomization device. The cigarette cartridge also includes a second condensate baffle, which is in close contact with the inner wall of the end cap on the side close to the electrode. The inner wall of the end cap on the side close to the electrode is spaced a preset distance from the end face of the oil tank facing the atomization device.

4. The smoke bomb for preventing oil leakage in the flue according to claim 1, characterized in that: The cigarette cartridge further comprises a first condensate baffle which is closely attached to the end surface of the oil tank facing the cigarette holder, and the peripheral wall of the first condensate baffle is closely attached to the inner wall of the cigarette holder.

5. The smoke bomb for preventing oil leakage in the flue according to claim 4, characterized in that: The cigarette holder is shell-shaped, and a pressing structure is formed on the inner wall of the cigarette holder opposite to the first condensate baffle to press the first condensate baffle against the end surface of the oil tank facing the smoking port of the cigarette holder toward the oil tank.

6. The smoke bomb for preventing oil leakage in the flue according to claim 1, characterized in that: The cigarette cartridge also includes a condensate retaining ring for preventing condensate on the outer wall of the oil tank from flowing toward the cigarette holder. The condensate retaining ring is an annular structure extending from the end surface of the oil tank facing the cigarette holder's smoking port toward the cigarette holder's smoking port.

7. The smoke bomb for preventing oil leakage in the flue according to any one of claims 1 to 6, characterized in that: The first flue is formed by an oil tank base and an oil tank; a first ultrasonic welding structure is formed on the oil tank base and the oil tank to isolate the joint between the oil tank base and the oil tank on the first flue from the accommodating chamber, the first ultrasonic welding structure includes a first annular protrusion formed by extending in the direction of the oil tank on a side where the oil tank base and the oil tank are connected, and a first annular groove formed by a side where the oil tank and the oil tank base are connected and is recessed in a direction opposite to the oil tank base, the first annular protrusion is inserted into the first annular groove at one end thereof and is ultrasonically welded to the first annular groove.

8. An electronic cigarette for preventing oil leakage from the flue, characterized in that: The electronic cigarette comprises the cigarette cartridge according to any one of claims 1 to 7 and a power supply device electrically connected to the cigarette cartridge.

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