Liquid injection method for a cartridge, the cartridge, and an electronic cigarette

Abstract

The present invention provides a cartridge, which includes a cartridge housing having a liquid storage cavity, a seal for sealing the liquid storage cavity, and a first electrode and a second electrode mounted on the seal. A first blind hole and a second blind hole are formed on the end face of the seal away from the liquid storage cavity. The seal is made of an elastic material. The liquid injection needle pierces the seal through the hole wall of at least one of the first blind hole and the second blind hole and then communicates with the liquid storage cavity to inject liquid into the liquid storage cavity. After the liquid injection needle is pulled out, the seal forms a self-seal at the piercing position. Then, the first blind hole is blocked by the first electrode, and the second blind hole is blocked by the second electrode. In the cartridge of the present invention, the pierced position on the seal can automatically recover and seal the liquid storage cavity again, preventing the e-liquid from leaking. The first blind hole and the second blind hole are respectively blocked by the first electrode and the second electrode, further preventing the e-liquid from leaking. The present invention also discloses an electronic cigarette with the cartridge and a liquid injection method applicable to the cartridge and the electronic cigarette.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic cigarettes, and in particular, to a method for injecting liquid into a cartridge, a cartridge, and an electronic cigarette. Background Art

[0002] Electronic cigarettes have become a relatively mature alternative to smoking in the market. They supply power to the heating element in the atomizer head through a battery, so that the heating element heats the adsorbed e-liquid on the liquid guiding element under the action of electric drive to generate smoke, thereby enabling users to obtain a smoking experience.

[0003] Currently in the market, there are usually two types of cartridges for electronic cigarettes. The first type is a cartridge without an atomizer head, and the second type is a cartridge with an atomizer head. For the first type of cartridge, after the e-liquid is filled, a seal for sealing the liquid storage cavity needs to be assembled again, and leakage is likely to occur during the assembly of the seal. For the second type of cartridge, leakage is likely to occur when the atomizer head is assembled after the e-liquid is filled. Summary of the Invention

[0004] Based on this, it is necessary to provide a method for injecting liquid into a cartridge that can prevent e-liquid leakage;

[0005] It is also necessary to provide a cartridge and an electronic cigarette suitable for this liquid injection method.

[0006] The technical solution adopted by the present invention to solve its technical problems is: A cartridge, the cartridge includes a cartridge housing having a liquid storage cavity, a seal for sealing the liquid storage cavity, and a first electrode and a second electrode mounted on the seal. A first blind hole and a second blind hole are formed on the end surface of the seal away from the liquid storage cavity. The seal is made of an elastic material. The injection needle pierces the seal through the hole wall of at least one of the first blind hole and the second blind hole and communicates with the liquid storage cavity to inject liquid into the liquid storage cavity. After the injection is completed, the injection needle is withdrawn, and the seal forms a self-seal at the piercing position. Then, the first blind hole is blocked by the first electrode, and the second blind hole is blocked by the second electrode.

[0007] Further, at least a part of the first electrode is tightly inserted into the first blind hole, and the inserted part blocks the first blind hole. At least a part of the second electrode is tightly inserted into the second blind hole, and the inserted part blocks the second blind hole.

[0008] Further, the cartridge further includes an atomizer head received in the liquid storage cavity. The atomizer head includes a heating structure having two pins extending outside the liquid storage cavity. The first electrode presses and fixes the part of one of the pins extending outside the liquid storage cavity against the side wall of the first blind hole and is electrically connected to the pin. The second electrode presses and fixes the part of the other pin extending outside the liquid storage cavity against the side wall of the second blind hole and is electrically connected to the pin.

[0009] Further, the atomizer head further includes an atomization tube. An atomization cavity communicating with the liquid storage cavity is provided in the atomization tube. The heating structure is received in the atomization cavity. A through hole is provided in the seal. One end of the atomization tube is hermetically inserted into the through hole. The two pins of the heating structure extend outside the liquid storage cavity after passing through the through hole.

[0010] Further, the atomizer head further includes a base located outside the liquid storage cavity and abutted against the end face of the seal away from the liquid storage cavity. One end of the first electrode passes through the base and is tightly inserted into the first blind hole. One end of the second electrode passes through the base and is tightly inserted into the second blind hole.

[0011] Further, a first installation groove corresponding to the first blind hole and a second installation groove corresponding to the second blind hole are provided in the base. One end of the first electrode passes through the bottom wall of the first installation groove and is tightly inserted into the first blind hole. The other end of the first electrode abuts against the bottom wall of the first installation groove. One end of the second electrode passes through the bottom wall of the second installation groove and is tightly inserted into the second blind hole. The other end of the second electrode abuts against the bottom wall of the second installation groove.

[0012] Further, a smoke outlet is formed at one end of the cartridge housing of the cartridge. The seal is located at the other end of the cartridge housing relative to the smoke outlet. The first electrode and the second electrode are symmetrically arranged with respect to the central axis of the cartridge housing.

[0013] An electronic cigarette, the electronic cigarette includes the cartridge according to any one of the foregoing items.

[0014] Further, the cartridge further includes a power supply device. The power supply device includes a battery case and a battery. The battery case has an opening. A partition is provided in the battery case. The partition divides the inner cavity of the battery case into a battery installation groove for installing the battery and a cartridge installation groove for installing the cartridge. The battery installation groove is located at the end of the battery case away from the opening.

[0015] Further, a first pole and a second pole are installed on the partition plate. The first pole is electrically connected to one of the positive and negative electrodes of the battery, and the second pole is electrically connected to the other electrode of the positive and negative electrodes of the battery. When the cartridge is in the first connection state with the power supply device, the first pole contacts and is electrically connected to the first electrode. When the cartridge is in the second connection state with the power supply device, the first pole contacts and is electrically connected to the second electrode.

[0016] In addition, the present invention also provides a liquid injection method for a cartridge, which is applicable to the cartridge described in any one of the foregoing items and the electronic cigarette described in any one of the foregoing items. The liquid injection method includes the following steps:

[0017] Step 1: The liquid injection needle pierces through the hole wall of at least one of the first blind hole and the second blind hole via the injection needle to communicate with the liquid storage cavity to inject liquid into the liquid storage cavity;

[0018] Step 2: After the liquid injection is completed, the liquid injection needle is pulled out, and the sealing member forms a self-seal at the piercing position;

[0019] Step 3: The first blind hole is blocked by the first electrode, and the second blind hole is blocked by the second electrode.

[0020] Further, a cut is provided on the hole wall of the second blind hole. During the liquid injection process, the pressure in the liquid storage cavity increases, causing the cut to be pushed open, and the air in the liquid storage cavity is discharged through the cut.

[0021] The beneficial effects of the present invention are as follows: For the liquid injection method, cartridge, and electronic cigarette provided by the present invention, after the liquid injection needle is pulled out, the pierced position on the sealing member can automatically recover and seal the liquid storage cavity again, preventing the e-liquid in the liquid storage cavity from leaking after the liquid injection is completed. In addition, after the liquid injection is completed, the first blind hole and the second blind hole are respectively blocked by the first electrode and the second electrode, thus further preventing the e-liquid from leaking. Description of the Drawings

[0022] The present invention will be further described below with reference to the drawings and embodiments.

[0023] Figure 1 is the front view of the electronic cigarette according to Embodiment 1 of the present invention;

[0024] Figure 2 is Figure 1 the left view of the electronic cigarette shown;

[0025] Figure 3 is Figure 1 the cross-sectional view along A-A of the electronic cigarette shown;

[0026] Figure 4Yes Figure 3 An enlarged view of the cartridge in the electronic cigarette shown.

[0027] The names and numbers of the components in the figure are as follows:

[0028] Cartridge 10, Liquid storage chamber 110, Cartridge housing 11

[0029] Vent pipe 11, Clamping protrusion 113, Seal 12

[0030] First blind hole 121, Second blind hole 122, Through hole 123

[0031] First electrode 13, Second electrode 14, Atomizing head 15

[0032] Atomizing tube 151, Heating structure 152, Atomizing chamber 150

[0033] Pin 1523, Liquid guiding member 1521, Heating member 1522

[0034] Liquid inlet 1511, Fixed sleeve 153, Communication hole 1531

[0035] Base 16, First installation groove 161, Second installation groove 162

[0036] Induction through hole 163, Sleeve 17, Connection part 171

[0037] Lifting rod 18, Power supply device 20, Battery case 21

[0038] Partition 211, Battery installation groove 212, Cartridge installation groove 213

[0039] Clamping groove 2131, Gap 2111, First pole 2112

[0040] Second pole 2113, Mounting post 2114, Induction channel 2115

[0041] Battery 22, Sensor 23 Specific implementation mode

[0042] The present invention will now be described in detail with reference to the accompanying drawings. This figure is a simplified schematic diagram, which only illustrates the basic structure of the present invention in a schematic manner, so it only shows the components related to the present invention.

[0043] Embodiment 1

[0044] Please refer to Figure 1 、 Figure 2 , Embodiment 1 of the present invention provides an electronic cigarette, which includes a cartridge 10 and a power supply device 20 electrically connected to the cartridge 10. When working, the power supply device 20 supplies power to the cartridge 10, so that the e-liquid stored in the cartridge 10 is atomized to generate smoke, and the smoke is inhaled by the user.

[0045] Please refer to Figure 3 and Figure 4 Figure 4 , the cartridge 10 includes a cartridge housing 11 having a liquid storage chamber 110, a seal 12 for sealing the liquid storage chamber 110, and a first electrode 13 and a second electrode 14 mounted on the seal 12. A first blind hole 121 for mounting the first electrode 13 and a second blind hole 122 for mounting the second electrode 14 are respectively formed on the end surface of the seal 12 away from the liquid storage chamber 110. The seal 12 is made of an elastic material. The liquid injection needle pierces the seal 12 through the hole wall of at least one of the first blind hole 121 and the second blind hole 122 and communicates with the liquid storage chamber 110 to inject liquid into the liquid storage chamber 110. After the liquid injection is completed, the liquid injection needle is pulled out, and the seal 12 forms a self-seal at the piercing position. Then, the first blind hole 121 is blocked by the first electrode 13, and the second blind hole 122 is blocked by the second electrode 14.

[0046] For the cartridge 10 of the present invention, the seal 12 can be pierced by the liquid injection needle to facilitate injecting e-liquid into the liquid storage chamber 110 through the liquid injection needle. And after the liquid injection needle is pulled out, the pierced position on the seal 12 can automatically recover to seal the liquid storage chamber 110 again, preventing the e-liquid in the liquid storage chamber 110 from leaking after the liquid injection is completed. In addition, after the liquid injection is completed, the first blind hole 121 and the second blind hole 122 are respectively blocked by the first electrode 13 and the second electrode 14. Thus, even if the e-liquid in the liquid storage chamber 110 leaks through the piercing position, the leaked e-liquid can be sealed by the first electrode 13 and / or the second electrode 14, further preventing the e-liquid from leaking and avoiding corrosion of the power supply device 20 caused by the e-liquid leakage.

[0047] In a specific embodiment, the seal 12 can be made of a soft material with elastic deformation ability, which can be a highly elastic polymer, for example, rubber or silica gel. It can be understood that in other embodiments, the seal 12 can also be made of a self-healing material. Therefore, the seal 12 can be pierced by a sharp object (such as a liquid injection needle), and after the sharp object is pulled out, it can automatically recover and seal again. The function of the seal 12 is to seal the liquid storage chamber 110 to prevent the e-liquid in the liquid storage chamber 110 from leaking during transportation, storage or use. And the seal 12 is also used after the cartridge 10 is assembled. The liquid injection needle pierces the seal 12 to inject e-liquid into the liquid storage chamber 110, and after the liquid injection needle is pulled out, it automatically recovers and seals the liquid storage chamber 110 again.

[0048] In addition, the provision of the first blind hole 121 and the second blind hole 122 can, on the one hand, respectively accommodate the installation of the first electrode 13 and the second electrode 14. On the other hand, the blind holes reduce the thickness of the seal 12 at the piercing position, enabling the liquid injection needle to more easily pierce the seal 12, while the remaining part of the seal 12 still has a relatively large thickness, making the sealed connection between the seal 12 and the cartridge housing 11 more stable and preventing the e-liquid in the liquid storage cavity 110 from leaking through the connection between the seal 12 and the cartridge housing 11.

[0049] In a specific embodiment, during liquid injection, the liquid injection needle pierces through the bottom wall of the first blind hole 121 to penetrate the seal 12 and then communicates with the liquid storage cavity 110 for liquid injection operations. To ensure the air pressure balance in the liquid storage cavity 110, that is, to ensure that while the liquid injection operation is carried out, the air in the liquid storage cavity 110 can be automatically discharged, a cut is provided on the wall of the second blind hole 122. This cut can self-seal in the non-liquid injection state, while in the liquid injection state, as the pressure in the liquid storage cavity 110 increases, the cut can be pushed open under the pressure, and the air in the liquid storage cavity 110 can be discharged through the pushed-open cut. It can be understood that in other embodiments, the liquid injection needle pierces through the wall of the second blind hole 122 to achieve liquid injection, or there are two liquid injection needles, and the two liquid injection needles simultaneously pierce through the wall of the first blind hole 121 and the wall of the second blind hole 122 to achieve liquid injection. In addition, the liquid injection needle can also pierce through the side wall of the first blind hole 121 and / or the second blind hole 122 to achieve liquid injection, and the piercing position of the liquid injection needle within the blind hole is not limited. It should be noted that to prevent the e-liquid in the liquid storage cavity 110 from leaking from the exhaust end of the cartridge 10, during the liquid injection process, it is only necessary to adjust the exhaust end of the cartridge 10 to a state above the cartridge 10.

[0050] Please refer to again Figure 3 、 Figure 4, the cartridge 10 further includes an atomizing head 15 received in the liquid storage chamber 110. The atomizing head 15 includes an atomizing tube 151 having an atomizing chamber 150 and a heating structure 152 received in the atomizing chamber 150. The atomizing tube 151 is connected to the seal 12. The heating structure 152 has the ability to absorb e-liquid and can generate heat after being energized. The heating structure 152 has two pins 1523 extending to the outside of the liquid storage chamber 110, and one end of each of the two pins 1523 extending to the outside of the liquid storage chamber 110 is bent. One end of the bent pin 1523 extends into the first blind hole 121 and is pressed and fixed on the side wall of the first blind hole 121 by the first electrode 13. One end of the bent pin 1523 on the other pin 1523 extends into the second blind hole 122 and is pressed and fixed on the side wall of the second blind hole 122 by the second electrode 14. In this way, while realizing the electrical connection function of the two pins 1523 of the heating structure 152 with the first electrode 13 and the second electrode 14, the fixing effect on the heating structure 152 is also realized. And when the user needs to disassemble or replace the heating structure 152, only the first electrode 13 and the second electrode 14 need to be removed, so as to release the pressing effect on the pins 1523, and then the heating structure 152 can be easily removed. The operation is simple and convenient, improving the user experience. In addition, the two pins 1523 of the heating structure 152 are not immersed in the liquid storage chamber 110, avoiding the corrosion of the pins 1523 by the e-liquid.

[0051] In this embodiment, the heating structure 152 is a ceramic heating body, that is, the ceramic heating body has the ability to absorb e-liquid and also has the ability to heat the e-liquid. It can be understood that in other embodiments, the heating structure 152 includes a liquid guiding member 1521 and a heating member 1522 in contact with each other. The liquid guiding member 1521 is an element having the ability to absorb e-liquid such as cotton, sponge, fiber rope, porous ceramic or porous graphite, etc. The heating member 133 is an element having the ability to heat the e-liquid after being energized such as a heating sheet, a heating mesh or a heating rod, etc. It can also be understood that the heating structure 152 can also be an ultrasonic heating device or a heating tube, etc., which is not limited here.

[0052] In a specific embodiment, the cartridge housing 11 is generally a hollow cylindrical structure with an opening at the lower end. The cartridge housing 11 is a flat structure, which, as the outer contour of the cartridge 10, can effectively prevent the cartridge 10 from rolling and avoid the cartridge 10 from falling when not in use. The liquid storage chamber 110 is formed by the inner cavity of the cartridge housing 11, and the e-liquid is stored in the liquid storage chamber 110. The seal 12 seals the lower end opening of the cartridge housing 11. The cartridge housing 11 is made of a transparent or semi-transparent material, so that the user can observe the amount of e-liquid in the liquid storage chamber 110 through the cartridge housing 11, facilitating the user's timely refilling operation. In this embodiment, the cartridge housing 11 is made of semi-transparent plastic.

[0053] In addition, a ventilation pipe 111 extends downward along the axial direction of the cartridge body 11 at the center of the upper end surface of the cartridge housing 11. The upper and lower ends of the ventilation pipe 111 are provided in a through manner, and the upper end of the ventilation pipe 111 penetrates through the upper end surface of the cartridge housing 11 to form a smoke outlet. The sealing member 12 is located at the other end of the cartridge housing 11 relative to the smoke outlet. In addition, the lower end of the ventilation pipe 111 communicates with the atomization chamber 150, so that the smoke in the atomization chamber 150 enters the user's mouth through the ventilation pipe 111.

[0054] The sealing member 12 is generally in a block-like structure. The sealing member 12 is received in the lower end of the cartridge housing 11 to close the liquid storage chamber 110. Specifically, the liquid storage chamber 110 is formed by the space enclosed between the inner wall of the cartridge housing 11, the outer wall of the ventilation pipe 111, and the upper end surface of the sealing member 12. A through hole 123 is axially formed at the center of the sealing member 12, and the through hole 123 penetrates the upper and lower end surfaces of the sealing member 12. The atomization pipe 151 is connected to the through hole 121, and two pins 1521 of the heating structure 152 pass through the through hole 121 and extend to the outside of the liquid storage chamber 110. In addition, the first blind hole 121 and the second blind hole 122 are provided on the lower end surface of the sealing member 12 and are symmetrically arranged on both sides of the through hole 123, that is, the first blind hole 121 and the second blind hole 122 are symmetrically arranged with respect to the central axis of the cartridge housing 11.

[0055] The atomization pipe 151 is generally in a hollow cylindrical structure with both ends being through. The atomization chamber 150 is formed by the inner cavity of the atomization pipe 151. The lower end of the atomization pipe 151 is hermetically inserted into the through hole 123, and the upper end of the atomization pipe 151 is received in the liquid storage chamber 110. A liquid inlet 1511 is provided on the side wall of the atomization pipe 151, and the liquid inlet 1511 communicates with both the liquid storage chamber 110 and the atomization chamber 150. During use, the tobacco liquid in the liquid storage chamber 110 enters the atomization chamber 150 through the liquid inlet 1511 and then contacts the heating structure 152, and then generates smoke under the heating action of the heating structure 152.

[0056] In addition, the atomization head 15 further includes a fixing sleeve 153. The fixing sleeve 153 is clamped between the inner peripheral surface of the atomization pipe 151 and the outer peripheral surface of the heating structure 152. The fixing sleeve 153 is made of high-temperature resistant silica gel or rubber material. By providing the fixing sleeve 153, the connection stability between the heating structure 152 and the atomization pipe 151 is increased, and the heating structure 152 and the atomization pipe 151 are prevented from being separated. At the same time, a communication hole 1531 is provided on the side wall of the fixing sleeve 153, and the communication hole 1531 communicates with both the liquid inlet 1511 and the heating structure 152, so that the tobacco liquid in the liquid storage chamber 110 contacts the heating structure 152 after passing through the liquid inlet 1511 and the communication hole 1531 in sequence.

[0057] In a specific embodiment, the cartridge 10 further includes a base 16. The base 16 covers the lower end of the cartridge housing 11 and is located outside the liquid storage chamber 110. The upper end surface of the base 16 abuts against the lower end surface of the seal 12, thereby supporting the seal 12 made of an elastic material and preventing the seal 12 from being easily deformed and affecting the sealing effect of the e-liquid. In addition, the base 16 and the cartridge housing 11 can be connected by means of screw connection, snap connection, plug connection or magnetic connection, etc., which is not limited herein.

[0058] Please refer to Figure 4 , in a specific embodiment, a first mounting groove 161 and a second mounting groove 162 are recessed on the lower end surface of the base 16. The first mounting groove 161 corresponds to the first blind hole 121, and the size of the first mounting groove 161 is larger than that of the first blind hole 121. The second mounting groove 162 corresponds to the second blind hole 122, and the size of the second mounting groove 162 is larger than that of the second blind hole 122. Both the first electrode 13 and the second electrode 14 are in a "convex" shape structure. The upper end of the first electrode 13 passes through the bottom wall of the first mounting groove 161 and is tightly inserted into the first blind hole 121. The lower end of the first electrode 13 is received in the first mounting groove 161 and abuts against the bottom wall of the first mounting groove 161. The upper end of the second electrode 14 passes through the bottom wall of the second mounting groove 162 and is tightly inserted into the second blind hole 122. The lower end of the second electrode 14 is received in the second mounting groove 162 and abuts against the bottom wall of the second mounting groove 162. In this way, the insertion depth of the first electrode 13 in the first blind hole 121 and the insertion depth of the second electrode 14 in the second blind hole 122 are limited, avoiding the situation that the piercing position is pushed open due to the over-deep insertion of the first electrode 13 and the second electrode 14, and further preventing the leakage of the e-liquid. It should be noted that when the first electrode 13 and the second electrode 14 are installed in place, the lower end surfaces of the first electrode 13 and the second electrode 14 are flush with the lower end surface of the base 16, making the cartridge 10 more beautiful. It can be understood that in other embodiments, the first mounting groove 162 and the second mounting groove 162 can also be omitted. At this time, the upper end of the first electrode 13 passes through the base 16 and is tightly inserted into the first blind hole 121 to block the first blind hole 121. The lower end of the first electrode 13 is located outside the base 16 and abuts against the lower end surface of the base 16. The upper end of the second electrode 14 passes through the base 16 and is tightly inserted into the second blind hole 122 to block the second blind hole 122. The lower end of the second electrode 14 is located outside the base 16 and abuts against the lower end surface of the base 16. In addition, to achieve electrical isolation and avoid short circuit, the base 16 is made of an insulating hard material. In this embodiment, the base 16 is made of plastic.

[0059] In addition, an induction through hole 163 communicating with the atomization chamber 150 is axially formed on the lower end surface of the base 16. There is one induction through hole 163 and it is located at the center of the base 16. The first mounting groove 161 and the second mounting groove 162 are symmetrically arranged on both sides of the induction through hole 163. In a specific embodiment, an air inlet hole communicating with the atomization chamber 150 is further formed on the lower end surface of the base 16, and the air inlet hole is located on one side of the induction through hole 163.

[0060] It can be understood that in other embodiments not shown, the base 16 can also be omitted. At this time, the first electrode 14 is entirely inserted into the first blind hole 121, and the second electrode 15 is entirely inserted into the second blind hole 122. In this way, it only needs to satisfy that at least a part of the first electrode 14 is tightly inserted into the first blind hole 121 and the inserted part plugs the first blind hole 121, and at least a part of the second electrode 15 is tightly inserted into the second blind hole 122 and the inserted part plugs the second blind hole 122.

[0061] In a specific embodiment, the cartridge 10 further includes a separation assembly. The separation assembly includes a sleeve 17 and a lifting rod 18. The sleeve 17 has a hollow cylindrical structure with an opening at the lower end. The sleeve 17 is slidably sleeved outside the atomization tube 151 along the axis of the atomization head 15. The lifting rod 18 has a rod-like structure and is slidably inserted into the inside of the air pipe 111. The lower end of the lifting rod 18 is connected to the upper end of the sleeve 17, and the upper end of the lifting rod 18 extends outside the cartridge housing 11 after passing through the upper opening of the air pipe 111. When the cartridge 10 leaves the factory, the sleeve 17 is sleeved outside the atomization tube 151 corresponding to the liquid inlet 1511 to close the liquid inlet 1511, preventing the smoke liquid in the liquid storage cavity 110 from entering the atomization head 15 through the liquid inlet 1511, thereby isolating the smoke liquid from the outside air, preventing the smoke liquid from entering the atomization head 15 and contacting the air due to temperature and air pressure changes during transportation and deteriorating, and further preventing the atomization head 15 from leaking smoke liquid due to excessive smoke liquid entering. When the user uses it, the lifting rod 18 is pulled upward, and the sleeve 17 moves upward together under the drive of the lifting rod 18 to open the liquid inlet 1511, so that the smoke liquid communicates with the atomization chamber 150 through the liquid inlet 1511. When the lifting rod 18 is continuously pulled upward until the upper end surface of the sleeve 17 abuts against the lower end surface of the air pipe 111, the lifting rod 18 can be separated from the sleeve 17 and then can be pulled out from the air pipe 111, and the air pipe 111 is opened. At this time, the atomization chamber 150 communicates with the inner cavity of the air pipe 111 through the sleeve 17.

[0062] Understandably, the sleeve 17 is made of silica gel or rubber material to facilitate the sealing of the liquid inlet 1511 when the cartridge 10 leaves the factory, and moreover, it is convenient for the sleeve 17 to deform so as to be disengaged from the lifting rod 18. In this embodiment, the sleeve 17 and the lifting rod 18 are integrally formed, and the connecting part of the sleeve 17 and the lifting rod 18 is broken and then disengaged from the lifting rod 18.

[0063] In addition, a connecting portion 171 is formed on the upper end surface of the sleeve 17 and extends upward along the axial direction of the sleeve 17. The connecting portion 171 is sleeved on the ventilation pipe 111, so that the sleeve 17 is connected to the ventilation pipe 111, which can prevent the leakage of the smoke liquid through the gap between the sleeve 17 and the ventilation pipe 111, and plays a guiding role during the movement of the sleeve 17.

[0064] Please refer to Figure 3 , the power supply device 20 includes a battery case 21 and a battery 22 and a sensor 23 mounted on the battery case 21.

[0065] In a specific embodiment, the battery case 21 is generally in a hollow cylindrical structure with an opening at the upper end. A partition 211 is arranged inside the battery case 21 along the radial direction of the battery case 21. The partition 211 divides the inner cavity of the battery case 21 into a battery installation slot 212 for installing the battery 22 and a cartridge installation slot 213 for installing the cartridge 10. The battery installation slot 212 is located at the end of the battery case 21 far from the opening. The cartridge 10 is connected to the battery case 21 through the opening of the battery case 21. Specifically, engaging protrusions 113 are provided on opposite sides of the cartridge housing 11, and engaging grooves 2131 corresponding to the engaging protrusions 113 are formed on the groove wall of the cartridge installation slot 213. When the cartridge 10 is inserted into the battery case 21, the engaging protrusions 113 cooperate with the engaging grooves 2131 to stabilize the connection between the cartridge 10 and the power supply device 20.

[0066] In addition, after the cartridge 10 and the power supply device 20 are installed in place, a gap 2111 is formed between the lower end surface of the base 16 and the upper end surface of the partition 211. The gap 2111 is communicated with both the air inlet hole and the outside atmosphere to facilitate the entry of external gas into the interior of the cartridge 10.

[0067] A first pole 2112 and a second pole 2113 are also respectively installed on the partition 211. The first pole 2112 is electrically connected to one of the positive and negative electrodes of the battery 22, and the second pole 2113 is electrically connected to the other electrode of the positive and negative electrodes of the battery 22. After the cartridge 10 and the power supply device 20 are installed in place, the first pole 2112 contacts and is electrically conducted with the first electrode 13, and the second pole 2113 contacts and is electrically conducted with the second electrode 14, thereby realizing the function of the battery 22 supplying power to the heating structure 152.

[0068] In addition, an installation post 2114 protrudes from the upper end face of the partition plate 211 corresponding to the induction through hole 163. An induction channel 2115 is formed in the installation post 2114. The upper end of the induction channel 2115 penetrates through the upper end face of the installation post 2114, and the lower end of the induction channel 2115 penetrates through the lower end face of the partition plate 211. The first pole column 2112 and the second pole column 2113 are symmetrically arranged on both sides of the installation post 2114, that is, the first pole column 2112 and the second pole column 2113 are symmetrically arranged with respect to the central axis of the cartridge housing 11. In this way, when the cartridge 10 is installed on the power device 20, there is no need to consider the positive and negative polarities, achieving the effect that both forward and reverse pluggings can be used. Specifically, when the cartridge 10 and the power device 20 are in the first connection state, the first pole column 2112 contacts and is electrically connected to the first electrode 13. When the cartridge 10 and the power device 20 are in the second connection state, the first pole column 2113 contacts and is electrically connected to the second electrode 14. In this embodiment, the change from the first connection state to the second connection state is obtained by rotating the power device 20 relative to the cartridge 10 by 180°, so as to achieve the purpose of electrical conduction in both forward and reverse insertions. The sensor 23 is installed at the lower end of the partition plate 211 and closes the induction channel 2115. The sensing end of the sensor 23 is communicated with the induction channel 2115. When the cartridge 10 and the power device 20 are installed in place, the installation post 2114 is partially inserted into the base 16, and the induction channel 2115 is communicated with the induction through hole 163.

[0069] In a specific embodiment, the power device 20 further includes a circuit board. The battery 22 and the sensor 23 are both electrically connected to the circuit board, and the sensor 23 is a pressure sensor. When the user smokes, a negative pressure is generated in the induction channel 2115 due to the suction effect. The sensor 23 senses the air pressure change in the induction channel 2115 and transmits the air pressure change signal to the circuit board. After receiving the signal, the circuit board controls the battery 23 to supply power to the heating structure 152, thereby heating the e-liquid so that the e-liquid generates smoke under the heating effect, realizing automatic control. It can be understood that the sensor 23 can also be an airflow sensor.

[0070] For the cartridge 10 provided by the present invention, the seal 12 can be pierced by the liquid injection needle to facilitate injecting e-liquid into the liquid storage cavity 110 through the liquid injection needle. And after pulling out the liquid injection needle, the pierced position on the seal 12 can automatically recover to seal the liquid storage cavity 110 again, preventing the e-liquid in the liquid storage cavity 110 from leaking after the liquid injection is completed. In addition, after the liquid injection is completed, the first blind hole 121 and the second blind hole 122 are respectively blocked by the first electrode 13 and the second electrode 14. In this way, even if the e-liquid in the liquid storage cavity 110 leaks through the pierced position, the leaked e-liquid can be sealed by the first electrode 13 and / or the second electrode 14, further preventing the e-liquid from leaking.

[0071] The present invention provides an electronic cigarette according to Embodiment 1. Since it has all the technical features of the above-mentioned cartridge 10, it has the same technical effects as the above-mentioned cartridge 10.

[0072] Embodiment 2

[0073] In Embodiment 2 of the present invention, a liquid injection method for a cartridge is further disclosed, which is used to inject liquid into the cartridge of an electronic cigarette. In a specific embodiment, the cartridge is the cartridge 10 in Embodiment 1. The cartridge 10 includes a cartridge housing 11 having a liquid storage chamber 110, a seal 12 for sealing the liquid storage chamber 110, and a first electrode 13 and a second electrode 14. On the end surface of the seal 12 away from the liquid storage chamber 110, a first blind hole 121 for installing the first electrode 13 and a second blind hole 122 for installing the second electrode 14 are respectively provided. The seal 12 is made of an elastic material. The liquid injection method includes:

[0074] Step 1: Pass the liquid injection needle through the hole wall of at least one of the first blind hole 121 and the second blind hole 122 to pierce the seal 12 and communicate with the liquid storage chamber 110 to inject liquid into the liquid storage chamber 110;

[0075] Step 2: After the liquid injection is completed, pull out the liquid injection needle, and the seal 12 forms a self-seal at the piercing position;

[0076] Step 3: Block the first blind hole 121 with the first electrode 13 and block the second blind hole 122 with the second electrode 14.

[0077] In addition, a cut is provided on the hole wall of the second blind hole 122. During the liquid injection process, the pressure increase in the liquid storage chamber 110 causes the cut to be pushed open, and the air in the liquid storage chamber 110 is discharged through the cut.

[0078] In the liquid injection method of the cartridge according to Embodiment 2 of the present invention, after the liquid injection needle is pulled out, the pierced position on the seal 12 can automatically recover to seal the liquid storage chamber 110 again, preventing the e-liquid in the liquid storage chamber 110 from leaking after the liquid injection is completed. In addition, after the liquid injection is completed, the first blind hole 121 and the second blind hole 122 are respectively blocked by the first electrode 13 and the second electrode 14. Thus, even if the e-liquid in the liquid storage chamber 110 leaks through the pierced position, the leaked e-liquid can be sealed by the first electrode 13 and / or the second electrode 14, further preventing the e-liquid from leaking.

[0079] Inspired by the above ideal embodiments according to the present invention, through the above description, relevant workers can make various changes and modifications without departing from the scope of the present invention. The technical scope of the present invention is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A cartridge, characterized in that: The cartridge includes a cartridge housing having a liquid storage chamber, a seal for sealing the liquid storage chamber, and a first electrode and a second electrode mounted on the seal. A first blind hole and a second blind hole are formed on the end face of the seal away from the liquid storage chamber. The seal is made of an elastic material. The liquid injection needle pierces the seal through the hole wall of at least one of the first blind hole and the second blind hole and communicates with the liquid storage chamber to inject liquid into the liquid storage chamber. After the liquid injection is completed, the liquid injection needle is withdrawn, and the seal forms a self-seal at the piercing position. Then, the first blind hole is blocked by the first electrode, and the second blind hole is blocked by the second electrode. The cartridge further includes a base covering the lower end of the cartridge housing and located outside the liquid storage chamber. The upper end face of the base abuts against the lower end face of the seal. A first mounting groove and a second mounting groove are recessed on the lower end face of the base. The first mounting groove corresponds to the first blind hole, and the size of the first mounting groove is larger than that of the first blind hole. The second mounting groove corresponds to the second blind hole, and the size of the second mounting groove is larger than that of the second blind hole. Both the first electrode and the second electrode are in a "convex" shape structure. The upper end of the first electrode passes through the bottom wall of the first mounting groove and is tightly inserted into the first blind hole. The lower end of the first electrode is received in the first mounting groove and abuts against the bottom wall of the first mounting groove. The upper end of the second electrode passes through the bottom wall of the second mounting groove and is tightly inserted into the second blind hole. The lower end of the second electrode is received in the second mounting groove and abuts against the bottom wall of the second mounting groove.

2. The cartridge according to claim 1, characterized in that: At least a part of the first electrode is tightly inserted into the first blind hole, and the inserted part blocks the first blind hole. At least a part of the second electrode is tightly inserted into the second blind hole, and the inserted part blocks the second blind hole.

3. The cartridge according to claim 2, wherein: The cartridge further includes an atomizing head received in the liquid storage chamber. The atomizing head includes a heating structure having two pins extending outside the liquid storage chamber. The first electrode presses and fixes the part of one of the pins extending outside the liquid storage chamber on the side wall of the first blind hole and is electrically connected to the pin. The second electrode presses and fixes the part of the other pin extending outside the liquid storage chamber on the side wall of the second blind hole and is electrically connected to the pin.

4. The cartridge according to claim 3, wherein: The atomizing head further includes an atomizing tube. An atomizing chamber communicating with the liquid storage chamber is provided in the atomizing tube. The heating structure is received in the atomizing chamber. A through hole is formed on the seal. One end of the atomizing tube is hermetically inserted into the through hole. The two pins of the heating structure pass through the through hole and extend outside the liquid storage chamber.

5. The cartridge according to claim 1, characterized in that: A smoke outlet is formed at one end of the cartridge housing on the cartridge. The seal is located at the other end of the cartridge housing relative to the smoke outlet. The first electrode and the second electrode are symmetrically arranged with respect to the central axis of the cartridge housing.

6. An electronic cigarette, characterized in that: The electronic cigarette includes the cartridge according to any one of claims 1-5.

7. The electronic cigarette according to claim 6, wherein: The cartridge further includes a power supply device, the power supply device includes a battery case and a battery, the battery case has an opening, a partition is provided in the battery case, and the partition divides the inner cavity of the battery case into a battery installation groove for installing the battery and a cartridge installation groove for installing the cartridge. The battery installation groove is located at one end of the battery case away from the opening.

8. The electronic cigarette according to claim 7, wherein: A first pole and a second pole are installed on the partition. The first pole is electrically connected to one of the positive and negative electrodes of the battery, and the second pole is electrically connected to the other of the positive and negative electrodes of the battery. When the cartridge is in the first connection state with the power supply device, the first pole contacts and is electrically connected to the first electrode. When the cartridge is in the second connection state with the power supply device, the first pole contacts and is electrically connected to the second electrode.

9. A liquid injection method for a cartridge, applicable to the cartridge according to any one of claims 1-5 and the electronic cigarette according to any one of claims 6-8. The liquid injection method includes the following steps: Step 1: The liquid injection needle pierces the seal through the hole wall of at least one of the first blind hole and the second blind hole and communicates with the liquid storage cavity to inject liquid into the liquid storage cavity. Step 2: After the liquid injection is completed, the liquid injection needle is pulled out, and the seal forms a self-seal at the piercing position. Step 3: The first blind hole is blocked by the first electrode, and the second blind hole is blocked by the second electrode.

10. The liquid injection method according to claim 9, characterized in that: A cut is provided on the hole wall of the second blind hole. During the liquid injection process, the pressure in the liquid storage cavity increases, causing the cut to be pushed open, and the air in the liquid storage cavity is discharged through the cut.

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