Electronic cigarettes

Abstract

The present invention provides an electronic cigarette, comprising a cartridge and a battery device, wherein the cartridge and the battery device are detachably connected, the cartridge comprises an aerosol-forming matrix, the battery device is provided with a heating element, a detection component and a controller, when the cartridge is mounted on the battery device, the heating element is used to heat the aerosol-forming matrix under the control of the controller, the detection component is used to generate a separation signal when the cartridge is removed from the battery device, and the controller is used to control the heating element to remove residues on the heating element according to the separation signal. The present invention can automatically remove residues on the heating element when the cartridge is removed from the battery device, thereby increasing the service life of the heating element and improving the performance of the electronic cigarette.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic cigarettes, and in particular to an electronic cigarette. Background Art

[0002] After the electronic cigarette is used, there may be residues attached to the heating element. The residue may be an aerosol-forming matrix, such as tobacco paste, tobacco, and tobacco liquid, or it may be some carbonized products produced at high temperatures. The residue may affect the use of the electronic cigarette. Taking the residue as an example, the tobacco liquid may affect the service life of the heating element. The tobacco liquid may also enter the battery device and affect the service life of the electronic components inside the battery device. In addition, the tobacco liquid is sticky and may adhere to dust and impurities in the air, thereby affecting the user's use. Moreover, when the user changes to another flavor of tobacco liquid next time, the remaining tobacco liquid from the last time may affect the taste of the new tobacco liquid. Summary of the invention

[0003] In view of this, the technical problem solved by the present invention is to provide an electronic cigarette that can automatically clean the residue on the heating element when the cigarette cartridge is removed from the battery device.

[0004] An electronic cigarette provided by the present invention comprises a cartridge and a battery device, wherein the cartridge is detachably connected to the battery device, the cartridge comprises an aerosol-forming matrix, the battery device is provided with a heating element, a detection component and a controller, when the cartridge is mounted on the battery device, the heating element is used to heat the aerosol-forming matrix under the control of the controller, the detection component is used to generate a separation signal when the cartridge is removed from the battery device, and the controller is used to control the heating element to remove residues on the heating element according to the separation signal.

[0005] Wherein, the detection component includes a first cavity, a second cavity, a first sensor and a second sensor, the first cavity and the second cavity are isolated from each other, the first sensor is arranged in the first cavity, and the second sensor is arranged in the second cavity, when the cigarette cartridge is removed from the battery device, the airflow signal of the first sensor is at a low level, and the airflow signal of the second sensor is at a high level, and when the airflow signal of the first sensor is at a low level and the airflow signal of the second sensor is at a high level, it corresponds to the separation signal.

[0006] The first cavity is connected to the outside, and when the cigarette cartridge is removed from the battery device, the air pressure in the first cavity remains unchanged, so that the airflow signal of the first sensor is at a low level.

[0007] Wherein, the cigarette cartridge also includes a matching part. When the cigarette cartridge is installed on the battery device, the matching part matches with the second cavity. When the cigarette cartridge is removed from the battery device, the matching part and the second cavity are released, so that negative pressure is generated in the second cavity, thereby making the airflow signal of the second sensor high level.

[0008] Wherein, when the cigarette cartridge is installed on the battery device, the matching portion closes the opening of the second cavity, and when the cigarette cartridge is removed from the battery device, the matching portion opens the opening of the second cavity; or, the detection component also includes a deformation portion, which is arranged at the opening of the second cavity and cooperates with the second cavity to form an enclosed space for setting the second sensor, and when the cigarette cartridge is installed on the battery device, the matching portion is inserted into the deformation portion, and when the cigarette cartridge is removed from the battery device, the matching portion is separated from the deformation portion.

[0009] Wherein, the cigarette cartridge also includes a matching part, and the detection component includes a status detection circuit, and the status detection circuit is used to detect the installation status of the cigarette cartridge. When the cigarette cartridge is installed on the battery device, the status detection circuit cooperates with the matching part and is in a conductive state. When the cigarette cartridge is removed from the battery device, the status detection circuit is released from the matching part and is in a disconnected state. The disconnection signal of the status detection circuit corresponds to the separation signal.

[0010] In which, a switch element is provided in the state detection circuit, and the matching part drives the switch element to turn on the state detection circuit when the cigarette cartridge is installed on the battery device. The switch element is separated from the matching part and reset when the cigarette cartridge is removed from the battery device, so that the state detection circuit is disconnected to generate the separation signal.

[0011] Among them, the switch element includes a ejector pin and a switch button, the battery device is provided with an ejector pin mounting through hole on the cigarette cartridge mounting side, the ejector pin is inserted into the ejector pin mounting through hole, the switch button is arranged on the circuit board where the status detection circuit is located and corresponds to the position of the ejector pin, when the cigarette cartridge is installed on the battery device, the mating part presses the switch button to the closed position through the ejector pin, and when the cigarette cartridge is removed from the battery device, the ejector pin is reset to reset the switch button to the disconnected position.

[0012] Among them, the battery device is also provided with a third cavity and a third sensor, the third sensor is arranged in the third cavity, the cigarette cartridge includes a mouthpiece, the third cavity is connected to the mouthpiece, when the cigarette cartridge is installed on the battery device, inhalation is drawn through the mouthpiece, the airflow signal of the third sensor is at a high level, and the controller controls the heating element to perform atomization.

[0013] Wherein, the battery device further comprises a battery housing, a battery bracket and a battery, the battery bracket is arranged in the battery housing, and the battery, the detection component and the heating element are arranged on the battery bracket.

[0014] The battery device is provided with a charging connection part on a side away from the heating element, and the charging connection part is used to connect to a charging stand. The charging stand is provided with an electronic cigarette connection part and a power connection part. There is a set angle between the electronic cigarette connection part and the power connection part, and 90°<the set angle<180°.

[0015] Among them, the cigarette cartridge also includes a cigarette cartridge shell and a sealing member, a liquid storage chamber for storing the aerosol-forming matrix is ​​formed in the cigarette cartridge shell, the aerosol-forming matrix is ​​smoke liquid, the sealing member penetrates into the liquid storage chamber from the outside of the cigarette cartridge and blocks the liquid outlet of the liquid storage chamber, when the sealing member is pulled in a direction away from the liquid storage chamber, the sealing member is separated from the liquid outlet, the liquid outlet is opened, and the liquid storage chamber supplies the smoke liquid to the heating element.

[0016] Wherein, the liquid storage chamber is sealed by a sealing gasket at one end relative to the liquid outlet, and an operating part perforation is provided on the sealing gasket, the sealing member includes an operating part and a sealing part, and the sealing part includes a first sealing part and a second sealing part connected to each other, one end of the operating part protrudes out of the outside of the cigarette bomb, and the other end of the operating part extends into the liquid storage chamber and is connected to the first sealing part, and a transverse notch is provided at the connection between the first sealing part and the operating part, and the second sealing part is used to seal the liquid outlet, and when the operating part is pulled in a direction away from the liquid storage chamber, the second sealing part can be separated from the liquid outlet, and the liquid outlet is opened, and the operating part is continued to be pulled in a direction away from the liquid storage chamber until the second sealing part and the sealing gasket are abutted, and the first sealing part is inserted into the operating part perforation to seal the operating part perforation, and the operating part and the first sealing part are disconnected by the transverse notch.

[0017] When the liquid storage chamber is injected with liquid, the injection needle passes through the sealing gasket and extends into the liquid storage chamber to inject liquid into the liquid storage chamber. At the same time, the exhaust needle passes through the sealing gasket and extends into the liquid storage chamber to exhaust the air in the liquid storage chamber. After the injection needle and the exhaust needle are pulled out, the sealing gasket forms a self-seal.

[0018] The cigarette cartridge further comprises a base, the base is provided with an atomization chamber and the matching portion, and the heating element is located in the atomization chamber when the cigarette cartridge is installed on the battery device.

[0019] Wherein, the battery device is also provided with an operating unit, and the operating unit is used to trigger the controller to control the heating element to work according to preset parameters to remove residues on the heating element.

[0020] The electronic cigarette of the present invention comprises a cigarette cartridge and a battery device, the cigarette cartridge and the battery device are detachably connected, the battery device is provided with a heating element, a detection component and a controller, when the cigarette cartridge is removed from the battery device, the detection component generates a separation signal, and the controller is used to control the heating element to work according to the separation signal to remove the residue on the heating element. The present invention can automatically remove the residue on the heating element when the cigarette cartridge is removed from the battery device, thereby increasing the service life of the heating element and improving the performance of the electronic cigarette. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of assembling the electronic cigarette in the first embodiment of the present invention.

[0022] Figure 2 for Figure 1 Schematic diagram of the electronic cigarette in the figure.

[0023] Figure 3 for Figure 1 Schematic diagram of the assembly of the electronic cigarette cartridge.

[0024] Figure 4 for Figure 3 Schematic diagram of the decomposition of the cigarette cartridge.

[0025] Figure 5 for Figure 3 One of the cross-sectional schematic diagrams of the cigarette cartridge.

[0026] Figure 6 for Figure 3 The second schematic cross-sectional view of the cigarette cartridge.

[0027] Figure 7 for Figure 1 Schematic diagram of the assembly of the battery device of the electronic cigarette.

[0028] Figure 8 for Figure 7 Exploded diagram of the battery assembly in FIG.

[0029] Fig. 9 for Figure 7 A schematic cross-sectional view of a battery device in FIG.

[0030] Fig.10for Fig. 9 A magnified schematic diagram of area A in the middle.

[0031] Fig.11 for Figure 7 Schematic diagram of the connection between the battery device and the matching part on the cigarette cartridge.

[0032] Fig.12 for Figure 7 One of the structural schematic diagrams of the battery bracket of the battery device in FIG.

[0033] Fig.13 for Figure 7 One of the structural schematic diagrams of the bracket seal of the battery device.

[0034] Fig.14 for Figure 7 The second structural schematic diagram of the bracket seal of the battery device.

[0035] Fig.15 for Figure 7 The second structural schematic diagram of the battery bracket of the battery device.

[0036] Fig.16 for Figure 1 One of the structural schematic diagrams of the charging stand of the electronic cigarette.

[0037] Fig.17 for Figure 1 The second structural diagram of the charging stand of the electronic cigarette.

[0038] Fig.18 It is a schematic cross-sectional view of a cigarette cartridge of an electronic cigarette in a second embodiment of the present invention.

[0039] Fig.19 FIG. 4 is a cross-sectional schematic diagram of a battery device for an electronic cigarette in a second embodiment of the present invention.

[0040] Fig. 20 It is a flowchart of a method for controlling an electronic cigarette in an exemplary embodiment of the present invention.

[0041] Fig.21 Schematic diagram of the structure of an electronic cigarette in an exemplary embodiment of the present invention.

[0042] Cartridges: 10, 50 Card slots: 11

[0043] Air inlet slots: 12 Mouthpiece: 13

[0044] Seal: 14 Base: 15, 55

[0045] Cartridge housing: 16 Liquid absorbing parts: 17

[0046] Liquid suction bracket: 18 Liquid storage chamber: 19

[0047] Smoke outlet: 131 Notch: 135

[0048] Operation part: 141 First sealing part: 142

[0049] Second sealing part: 143 Transverse notch: 145

[0050] Atomization chamber: 151 Air inlet: 152

[0051] Matching part: 153, 553 Connecting groove: 155

[0052] Partition: 156 Air guide slot: 157

[0053] Base seal: 161 Gasket: 162

[0054] Operation part perforation: 163 Liquid collection part: 164

[0055] Airflow channel: 165 Mounting part: 166

[0056] Liquid hole: 167 Air guide: 168

[0057] Grooves: 169 Liquid outlets: 191

[0058] Battery device: 20, 60 Heating element: 21

[0059] Bracket seal: 22, 62 Battery bracket: 23, 63

[0060] Battery housing: 24 Detection components: 25

[0061] Sensor seal: 26 Actuator: 27

[0062] Controller: 29 Pins: 211

[0063] Air intake notch: 221 Air intake hole: 222

[0064] Through hole: 223 Socket: 224

[0065] Deformation: 225 Separation: 229

[0066] Connecting holes: 230 Conductive pillars: 231

[0067] First circuit board: 234 Second circuit board: 235

[0068] Second vent: 236 First receiving slot: 237

[0069] Second receiving groove: 238 Connecting part: 239

[0070] Buckle: 241 Receiving cavity: 242

[0071] Mounting cavity: 243 First vent: 245

[0072] First sensor: 251 Second sensor: 252

[0073] First cavity: 253 Second cavity: 254

[0074] Part 1: 261 Part 2: 262

[0075] Connecting column: 281 Contact electrode: 282

[0076] Indicator light: 30 Charging station: 40

[0077] Electronic cigarette connection: 41 Power connection: 42

[0078] Electronic cigarette slot: 411 Charging column: 412

[0079] The third chamber: 61 The third sensor: 66

[0080] Ejector: 651 Switch button: 652

[0081] Switching element: 653 Lamp post cover: 232

[0082] Battery: 233 Memory: 310

[0083] Processor: 320 DETAILED DESCRIPTION

[0084] In order to further explain the technical methods and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation methods, structures, features and effects of the present invention are described in detail below in conjunction with the accompanying drawings and embodiments.

[0085] First embodiment

[0086] Figure 1 It is a schematic diagram of assembling the electronic cigarette in the first embodiment of the present invention. Figure 2 for Figure 1 Schematic diagram of the electronic cigarette in the figure. Figure 1 and Figure 2As shown, the electronic cigarette of this embodiment includes a cartridge 10 and a battery device 20, and the cartridge 10 and the battery device 20 are detachably connected. In actual implementation, the cartridge 10 is provided with a slot 11 on both sides of the battery device 20, and the buckle 241 is provided on both sides of the battery device 20. When the cartridge 10 is inserted into the battery device 20, the cartridge 10 is fixed to the battery device 20 by the cooperation of the buckle 241 and the slot 11 to achieve a detachable connection. The cartridge 10 includes an aerosol-forming matrix. In the first and second embodiments, the aerosol-forming matrix is ​​a smoke liquid as an example. It can be understood that in other embodiments not shown, the aerosol-forming matrix can also be a smoke paste or tobacco. When the type of aerosol-forming matrix is ​​different, the structure of the cartridge 10 is also different. For example, when the aerosol-forming matrix is ​​tobacco, the cartridge 10 can be set to a structure similar to that of an ordinary cigarette.

[0087] Please further combine Figure 3 , Figure 4 and Figure 5 The cigarette cartridge 10 includes a detachable sealing member 14, a mouthpiece 13 provided with a smoke outlet 131, a cigarette cartridge housing 16, a sealing pad 162, a liquid absorbing member 17, a liquid absorbing member support 18 and a base 15. The mouthpiece 13 is connected to the upper end of the cigarette cartridge housing 16, the sealing pad 162 is arranged at the upper end of the cigarette cartridge housing 16 and is located between the mouthpiece 13 and the cigarette cartridge housing 16, a part of the sealing member 14 is inserted into the interior of the cigarette cartridge housing 16 through the mouthpiece 13 and the sealing pad 162 in sequence, and another part of the sealing member 14 is exposed to the outside of the cigarette cartridge 10, the liquid absorbing member 17 and the liquid absorbing member support 18 are arranged in the lower end of the cigarette cartridge housing 16, and the base 15 is connected to the lower end of the cigarette cartridge housing 16. An atomization chamber 151, an air inlet 152 and a matching portion 153 are provided on the base 15. The air inlet 152 and the matching portion 153 are respectively located on opposite sides of the atomization chamber 151. In the present embodiment, the matching portion 153 is a sealing protrusion. When the cigarette cartridge 10 is installed on the battery device 20, the matching portion 153 and the battery device 20 form a specific matching structure for detecting whether the cigarette cartridge 10 is installed on the battery device 20 and whether the cigarette cartridge 10 is removed from the battery device 20.

[0088] Please further combine Figure 5 and Figure 6, a liquid storage chamber 19 and an air flow channel 165 isolated from the liquid storage chamber 19 are formed in the cartridge shell 16 along the axial direction of the cartridge shell 16. The liquid storage chamber 19 and the air flow channel 165 are both opened at the upper and lower ends. The air flow channel 165 connects the atomization chamber 151 on the base 15 with the smoke outlet 131 on the cigarette holder 13, and the air inlet 152 on the base 15 is connected with the atomization chamber 151. The upper end opening of the liquid storage chamber 19 is sealed by a sealing gasket 162, and the sealing gasket 162 is provided with an operating portion perforation 163 for penetrating the sealing member 14. The lower end opening of the liquid storage chamber 19 constitutes a liquid outlet 191, and the liquid outlet 191 is used to connect the liquid storage chamber 19 with the liquid absorbing member 17. The liquid absorbing member 17 is fixed to the outside of the liquid outlet 191 through the liquid absorbing member bracket 18. The liquid absorbing member 17 is connected to the atomization chamber 151 on the base 15, and the atomization chamber 151 is connected to the air flow channel 165. The seal 14 is inserted from the outside of the cartridge 10 through the mouthpiece 13, the operating part perforation 163 of the sealing gasket 162, into the liquid storage chamber 19 and blocks the liquid outlet 191, so that the liquid storage chamber 19 is sealed, so that the cartridge 10 will not leak before use, which is convenient for storage and transportation, and the smoke liquid in the liquid storage chamber 19 will not shorten the shelf life due to contact with the outside air. When the electronic cigarette needs to be used, the user can operate the seal 14 so that the smoke liquid in the liquid storage chamber 19 can enter the liquid absorption part 17 through the liquid outlet 191 and be absorbed by the liquid absorption part 17. It should be noted that the seal 14 always seals the operating part perforation 163 to prevent leakage from the operating part perforation 163.

[0089] When actually implementing, please combine Figure 4 and Figure 5The sealing member 14 includes an operating portion 141 and a sealing portion. One end of the operating portion 141 protrudes out of the outside of the cigarette cartridge 10 and can be operated by the user. The sealing portion includes a first sealing portion 142 and a second sealing portion 143 that are connected to each other. The first sealing portion 142 is connected to one end of the operating portion 141 located in the liquid storage chamber 19, and a transverse notch 145 is provided at the connection between the first sealing portion 142 and the operating portion 141. The second sealing portion 143 is used to seal the liquid outlet 191. When the operating portion 141 moves outward along the operating portion through hole 163 on the liquid storage chamber 19 under the action of external force, it drives the first sealing portion 142 to move upward along the axial direction of the cigarette cartridge 10, and the first sealing portion 142 drives the second sealing portion 143 to open the liquid outlet 191. The radial width of the second sealing portion 143 is greater than the aperture of the operating portion through-hole 163. When the operating portion 141 is continuously pulled upward along the axial direction of the cigarette cartridge 10 until the second sealing portion 143 abuts against the lower end surface of the sealing pad 162, the sealing member 14 cannot continue to move upward, and the first sealing portion 142 is inserted into the operating portion through-hole 163 to seal the operating portion through-hole 163. Since the connection between the first sealing portion 142 and the operating portion 141 has a transverse notch 145, the operating portion 141 and the first sealing portion 142 can be disconnected under the action of an external force, the operating portion 141 is taken out, and the first sealing portion 142 seals the operating portion through-hole 163, which will not destroy the sealing of the upper end of the liquid storage chamber 19. In addition, the through hole on the mouthpiece 13 for inserting the sealing member 14 serves as the smoke outlet 131 after the operating portion 141 is taken out. The liquid absorbing member 17 is located between the upper opening of the atomizing chamber 151 and the liquid outlet 191. When the liquid outlet 191 is opened, the smoke liquid in the liquid storage chamber 19 flows out from the liquid outlet 191 and is absorbed by the liquid absorbing member 17. When the cigarette cartridge 10 is installed on the battery device 20, the heating member 21 arranged on the battery device 20 extends from the lower opening of the atomizing chamber 151 into the atomizing chamber 151 and contacts the liquid absorbing member 17. The heating member 21 can generate heat to heat the smoke liquid on the liquid absorbing member 17 under electric drive, and the smoke liquid is heated to form smoke. When the user inhales, the smoke generated by the atomization in the atomizing chamber 151 flows out through the airflow channel 165 and the smoke outlet 131. When the smoke liquid in the liquid storage chamber 19 is exhausted, the user can replace a new cigarette cartridge 10. Since the heating member 21 is arranged on the battery device 20, the replacement of the cigarette cartridge 10 does not involve the heating member 21, which reduces the replacement cost of the cigarette cartridge 10.

[0090] To ensure the sealing of the base 15, Figure 4 and Figure 5As shown, a base seal 161 is also provided between the base 15 and the cartridge housing 16. The base seal 161 is sleeved outside the upper end of the base 15. A mounting portion 166 is protruded downwardly on the upper end surface of the base seal 161 corresponding to the upper end opening of the atomizing chamber 151. The lower end opening of the mounting portion 166 is provided. The liquid absorbent 17 is installed on the liquid absorbent bracket 18. The liquid absorbent 17 and the liquid absorbent bracket 18 are received in the mounting portion 166 after passing through the lower end opening of the mounting portion 166. A liquid hole 167 communicating with the liquid absorbent 17 is provided at the upper end of the mounting portion 166. When the liquid outlet 191 is opened, the liquid hole 167 is also communicated with the liquid outlet 191. An air guide portion 168 is protruded upwardly on the upper end surface of the base seal 161. The air guide portion 168 is inserted into the air flow channel 165 from the lower end opening of the air flow channel 165, thereby increasing the sealing performance of the air flow channel 165. An air guide groove 157 is provided on the base 15 corresponding to the air guide portion 168. One end of the air guide groove 157 passes through the upper end surface of the base 15 along the axial direction of the cigarette cartridge 10 and is communicated with the air guide portion 168. The other end of the air guide groove 157 passes through the cavity wall of the atomization cavity 151 along the radial direction of the cigarette cartridge 10 and is communicated with the atomization cavity 151. The smoke generated in the atomization cavity 151 flows out through the air guide groove 157, the air guide portion 168, the air flow channel 165 and the smoke outlet 131 in sequence. The matching portion 153 is convexly provided on the lower end surface of the base 15 corresponding to the air guide groove 157. A connecting groove 155 is provided on the base 15 relative to the air guide groove 157. One end of the connecting groove 155 penetrates the cavity wall of the atomizing cavity 151 along the radial direction of the cigarette cartridge 10 and communicates with the atomizing cavity 151. The other end of the connecting groove 155 penetrates the lower end surface of the base 15 along the axial direction of the cigarette cartridge 10 to form an air inlet 152. In this way, the air inlet 152 and the lower end opening of the atomizing cavity 151 are arranged parallel to the axial direction of the cigarette cartridge 10, which can prevent the condensate formed by the smoke in the atomizing cavity 151 from entering the air inlet 152 and entering the first sensor 251 through the air inlet 152, affecting the use of the first sensor 251. Further, a partition 156 is provided in the connecting groove 155, and an air hole is provided on the partition 156. The air hole is respectively connected with the air inlet 152 and the connecting groove 155. The aperture of the air hole is small, and the condensate is difficult to enter the air inlet 152 through the air hole under the action of surface tension.

[0091] In addition, if Figure 4 and Figure 6 As shown, a liquid collecting member 164 may be provided between the sealing pad 162 and the cigarette holder 13, and the liquid collecting member 164 is used to absorb large particles of cigarette liquid or condensed liquid.

[0092] like Figure 4 and Figure 5 As shown, in order to facilitate the injection of smoke liquid into the liquid storage chamber 19, a groove 169 is provided on the upper end surface of the sealing gasket 162 on opposite sides of the sealing member 14. Figure 5As shown, a connecting port is provided on the cigarette holder 13 on opposite sides of the sealing member 14. When injecting liquid, one connecting port is used as the injection port and the other connecting port is used as the exhaust port. The injection needle passes through the injection port and the groove 169 corresponding to the injection port in sequence and then extends into the liquid storage chamber 19 to inject cigarette liquid into the liquid storage chamber 19. The exhaust needle passes through the exhaust port and the groove 169 corresponding to the exhaust port in sequence and then extends into the liquid storage chamber 19 to discharge the gas in the liquid storage chamber 19 during the injection process. After the injection is completed, the injection needle and the exhaust needle are pulled out, and the sealing gasket 162 forms a self-seal at the position pierced by the injection needle and the exhaust needle without leaking liquid. The provision of the groove 169 can reduce the thickness of the sealing gasket 162, thereby facilitating the puncture of the injection needle and the exhaust needle. During the entire liquid injection process, the liquid absorbing member 17 and the liquid storage chamber 19 are always isolated from each other, which can prevent the smoke liquid from leaking through the liquid absorbing member 17 and prevent the air from disturbing the liquid absorbing member 17 and causing the position of the liquid absorbing member 17 to shift. When inhaling through the cigarette holder 13, the two connecting ports serve as the smoke outlet 131.

[0093] In this embodiment, please refer to Figure 1 , Figure 2 and Figure 4 The suction end of the cigarette holder 13 is retracted inward, which is ergonomic and provides a good suction experience. The cigarette cartridge housing 16 is made of a transparent or translucent material, and a notch 135 is provided on the cigarette holder 13 at a portion corresponding to the liquid storage chamber 19, so that the cigarette cartridge housing 16 is partially exposed through the notch 135, thereby forming a window through which the liquid storage chamber 19 can be observed, so that the user can observe the amount of smoke liquid used or the remaining amount.

[0094] like Figure 7 , Figure 8 and Fig.11 As shown, the battery device 20 includes a heating element 21, a conductive column 231, a detection component 25, a battery housing 24, a battery bracket 23, a bracket seal 22, a battery 233 and a controller 29. Among them, the heating element 21 can be a ceramic heating element, which has a tungsten paddle sintered in aluminum nitride ceramic. The two are densely combined and the porosity is less than 1%, so that the heating element 21 can heat up quickly and the temperature distribution is uniform, but the type of heating element 21 is not limited to this. The battery bracket 23 is arranged in the battery housing 24. The battery 233 is arranged on the battery bracket 23. Please combine Fig. 9 and Fig.10The bracket seal 22 is sleeved on the outer side of the upper end of the battery bracket 23 and fits tightly with the inner wall of the battery shell 24 to prevent the smoke liquid from leaking into the interior of the battery device 20 through the gap between the battery shell 24 and the battery bracket 23. The conductive column 231 is arranged at the upper end of the battery bracket 23 and extends into the bracket seal 22. The conductive column 231 is used to electrically connect the heating element 21 and the battery 233. The bracket seal 22 divides the inner cavity of the battery shell 24 into two chambers, a receiving cavity 242 located above the bracket seal 22 and an installation cavity 243 located below the bracket seal 22. The heating element 21 is located in the receiving cavity 242. The two pins 211 of the heating element 21 pass through the bracket seal 22 and are inserted into the conductive column 231 to fix the heating element 21 and electrically connect it to the conductive column 231. The buckle 241 is arranged on the cavity wall of the receiving cavity 242, and the card slot 11 (please refer to Figure 2 ) is arranged on the side wall of the cartridge housing 16. When the cartridge 10 is installed on the battery device 20, the buckle 241 cooperates with the card slot 11, so that the cartridge 10 is partially accommodated in the accommodating cavity 242, and the heating element 21 extends into and is located in the atomizing cavity 151 to be close to or contact the liquid absorbing element 17. The liquid absorbing element 17 is used to supply the smoke liquid to the heating element 21 for atomization. Fig.11 The matching part 153 on the cigarette cartridge 10 contacts the detection component 25 when the cigarette cartridge 10 is installed on the battery device 20, and separates from the detection component 25 when the cigarette cartridge 10 is removed from the battery device 20. The detection component 25 is connected to the controller 29. The detection component 25 is used to generate a separation signal when it is separated from the matching part 153. The controller 29 is used to control the heating element 21 to work according to the separation signal and preset parameters to remove the residue attached to the heating element 21. The residue includes but is not limited to aerosol-forming matrix and carbonized matter generated at high temperature.

[0095] In this embodiment, please refer to Figures 8 to 12The detection component 25 includes a sensor seal 26, a first cavity 253, a second cavity 254, a first sensor 251 and a second sensor 252. The first cavity 253 and the second cavity 254 are arranged on a side surface of the battery holder 23 and close to the upper end of the battery holder 23. The sensor seal 26 is provided with a first part 261 and a second part 262 corresponding to the first cavity 253 and the second cavity 254 respectively. The first sensor 251 is installed in the first part 261 of the sensor seal 26 and is placed in the first cavity 253. The opening of the first cavity 253 is connected to the air inlet 152. The second sensor 252 is installed in the second part 262 of the sensor seal 26 and is placed in the second cavity 254. When the cigarette cartridge 10 is installed on the battery device 20, the matching part 153 blocks the opening of the second cavity 254. The first sensor 251 and the second sensor 252 are respectively connected to the first circuit board 234 to transmit the airflow signal to the controller 29. Through the matching structure of the battery holder 23, the sensor seal 26 and the first circuit board 234, the first cavity 253 and the second cavity 254 can be disconnected from each other to avoid airflow interference. When the matching portion 153 opens the opening of the second cavity 254 as the cigarette cartridge 10 is removed, a negative pressure will be generated in the second cavity 254, so that the second sensor 252 detects the change in internal air pressure and generates a corresponding airflow signal, that is, a high-level signal. At the same time, since the user will not inhale the electronic cigarette when removing the cigarette cartridge 10, and the first cavity 253 remains connected to the outside world, the air pressure in the first cavity 253 remains unchanged, and the first sensor 251 will not detect the airflow signal, that is, a low-level signal is generated. Therefore, when the cigarette cartridge 10 is removed, the airflow signal of the first sensor 251 is low and the airflow signal of the second sensor 252 is high. When the airflow signal of the first sensor 251 is low and the airflow signal of the second sensor 252 is high, it can be considered that the separation signal of the cigarette cartridge 10 being removed from the battery device 20 is detected.

[0096] After the separation signal is detected, the self-cleaning mode is started. The controller 29 controls the heating element 21 to work according to the preset parameters to remove the residues attached to the heating element 21. In actual implementation, the heating element 21 is controlled to work for a shorter time at a higher power, such as heating for 1 second. The power used for self-cleaning is higher than the power of the heating element 21 when atomizing. Removing the residue on the heating element 21 can prevent the residue from affecting the use of the electronic cigarette. For example, when the residue is residual smoke liquid, the residual smoke liquid can be prevented from entering the installation cavity 243 and affecting the electronic components in the installation cavity 243. In addition, self-cleaning is performed after the cigarette cartridge 10 is removed to prevent the liquid absorbent 17 from carbonizing under the high temperature during self-cleaning.

[0097] Please refer to the above Fig.13 and Fig.14The support seal 22 is provided with a socket 224 for inserting the pin of the heating element 21, an air inlet hole 222 connected to the opening of the first cavity 253, a through hole 223 connected to the opening of the second cavity 254, and an air inlet notch 221. The socket 224 is provided on the upper end surface of the support seal 22, and the air inlet hole 222 and the through hole 223 are located on opposite sides of the socket 224. The pin of the heating element 21 is inserted into the conductive column 231 after passing through the socket 224. The air inlet notch 221 is provided on the side wall of the support seal 22 near the air inlet hole 222. The matching part 153 of the cigarette cartridge 10 closes or opens the opening of the second cavity 254 through the through hole 223 connected to the opening of the second cavity 254. In addition, please combine Figure 2 , Figure 3 , Figure 5 and Fig. 9 The side wall of the cartridge housing 16 is provided with an air inlet groove 12. The air inlet groove 12 on the cartridge 10 cooperates with the battery housing 24 of the battery device 20 to form an air inlet channel, so that external gas can enter the electronic cigarette. The gas entering the electronic cigarette enters the atomization chamber 151 of the cartridge 10, and the smoke in the atomization chamber 151 flows out from the air guide groove 157, the air guide part 168, the air flow channel 165 and the smoke outlet 131. Please combine Fig.10 A first vent 245 is provided on the battery housing 24, a second vent 236 is provided on the side wall of the upper end of the battery holder 23, the air inlet notch 221 is communicated with the first vent 245 and the second vent 236 respectively, and the second vent 236 is also communicated with the opening of the first cavity 253. Therefore, when the electronic cigarette is inhaled, external gas enters through the first vent 245, the air inlet notch 221 and the second vent 236, and when flowing through the opening of the first cavity 253, it takes away the air in the first cavity 253, and then flows out from the air inlet hole 222, the air inlet 152, the connecting groove 155, the atomizing cavity 151, the air guide groove 157, the air guide part 168, the air flow channel 165 and the smoke outlet 131, so that a negative pressure is generated in the first cavity 253, and the first sensor 251 detects the change in air pressure and generates a corresponding air flow signal, that is, a high level signal. At this time, the opening of the second cavity 254 is closed by the matching part 153, there is no change in the air pressure in the second cavity 254, and the second sensor 252 remains in the state of outputting a low-level signal. When the airflow signal of the first sensor 251 is at a high level and the airflow signal of the second sensor 252 is at a low level, it is considered that the atomization start signal is detected. After the atomization start signal is detected, the atomization mode is started, and the controller 29 controls the heating element 21 to work according to preset parameters to atomize the smoke liquid on the liquid absorption element 17. It can be understood that the external gas entering from the first vent 245 can also take away the smoke in the atomization cavity 151 after entering the atomization cavity 151.

[0098] It should be noted that when the user does not perform any suction or disassembly operation on the electronic cigarette, there is no change in the air pressure in the first cavity 253 and the second cavity 254, the first sensor 251 and the second sensor 252 are both kept in the state of outputting low-level signals, and the heating element 21 does not work, that is, neither self-cleaning nor atomization is performed. When the user only inhales the battery device 20, the air in the first cavity 253 and the second cavity 254 is sucked out, the first cavity 253 and the second cavity 254 are both negative pressure, the first sensor 251 and the second sensor 252 both generate high-level signals, and the heating element 21 does not work at this time, thereby preventing the heating element 21 from working in an abnormal state.

[0099] In order to prevent the condensation of smoke or the leakage of smoke liquid from entering the first cavity 253 and the second cavity 254, thereby affecting the operation of the first sensor 251 and the second sensor 252. Fig.15 As shown, the upper end surface of the battery holder 23 is partially recessed downward to form a first receiving groove 237 and a second receiving groove 238. A connecting portion 239 is protruded upward along the axial direction of the battery device 20 on the bottom wall of the first receiving groove 237, and the connecting portion 239 is connected to the opening of the first receiving groove 237 and the first cavity 253 respectively. Fig.13 A partition 229 is convexly provided on the upper end surface of the support seal 22. When the support seal 22 is installed in place, the air inlet 222 and the connecting portion 239 are located on opposite sides of the partition 229, that is, the air inlet 222 and the connecting portion 239 are staggered. Since the connecting portion 239 is convexly provided and the air inlet 222 and the connecting portion 239 are staggered, even if the condensed liquid of smoke or the leaked smoke liquid enters the battery device 20, it cannot enter the first cavity 253 through the air inlet 222 and the connecting portion 239, but remains in the first receiving groove 237. Under the action of the user's suction, external air enters the first receiving groove 237 through the first air vent 245, the air inlet notch 221 and the second air vent 236, and then flows out through the air inlet hole 222, the air inlet 152, the connecting groove 155, the atomizing chamber 151, the air guide groove 157, the air guide part 168, the air flow channel 165 and the smoke outlet 131. During this process, the air in the first chamber 253 is brought out by the external air through the opening of the first chamber 253, the connecting part 239 and the first receiving groove 237, so that a negative pressure is generated in the first chamber 253. The first sensor 251 detects the change in air pressure and generates a corresponding airflow signal, that is, a high-level signal. In this embodiment, the detection component 25 also includes a deformation portion 225. The deformation portion 225 is formed by a downward convex portion on the upper end surface of the bracket seal 22 corresponding to the through hole 223. The deformation portion 225 is a hollow structure with an upper end opening. Please combine Fig.10When the bracket seal 22 is installed on the battery bracket 23, the deformed portion 225 extends into and is located in the second receiving groove 238. The bottom wall of the second receiving groove 238 is provided with a connecting hole 230, which is respectively connected to the opening of the second cavity 254 and the second receiving groove 238. The deformed portion 225 closes the opening of the second cavity 254 by closing the connecting hole 230. At this time, the deformed portion 225 cooperates with the second cavity 254 to form a closed space for accommodating the second sensor 252. When the cigarette cartridge 10 is installed in place, the matching portion 153 is inserted into the deformed portion 225 through the through hole 223 to seal the deformed portion 225, which is equivalent to sealing the opening of the second cavity 254. When the cigarette cartridge 10 is pulled out, the deformation part 225 is deformed under the action of the matching part 153, and the enclosed space formed by the second cavity 254 and the deformation part 225 becomes larger, so that negative pressure is generated in the space, and the second sensor 252 detects the change in air pressure and generates a corresponding airflow signal, that is, a high-level signal. The deformation part 225 separates the second sensor 252 in the second cavity 254 from the outside world, thereby preventing the condensed liquid or leaked smoke liquid from entering the second cavity 254 and affecting the normal operation of the second sensor 252.

[0100] It can be understood that the deformation part 225, as a part of the detection component 25, can also be directly arranged on the battery holder 23 and located at the opening of the second cavity 254, and cooperate with the second cavity 254 to form a closed space for accommodating the second sensor 252. At this time, the through hole 223 on the bracket seal 22 is arranged to pass through the upper end surface and the lower end surface of the bracket seal 22, so that when the cigarette cartridge 10 is installed in place, the matching part 153 is inserted into the deformation part 225 through the through hole 223 to seal the deformation part 225. At the same time, the deformation part 225 can separate the second sensor 252 in the second cavity 254 from the outside world to prevent condensed liquid or leaked smoke liquid from entering the second cavity 254. In addition, the second sensor 252 generates an airflow signal by detecting the air pressure change in the cavity where it is located. Therefore, it is only necessary to ensure that the cavity where the second sensor 252 is located has no air pressure change after the cigarette cartridge 10 is installed and that the air pressure change can occur when the cigarette cartridge 10 is removed. The air pressure change can be the air pressure change directly caused by the matching part 153 being pulled out relative to the second cavity 254 when there is no deformation part 225, or the air pressure change caused by the matching part 153 being pulled out relative to the second cavity 254 when the deformation part 225 is provided. In this case, the opening of the deformation part 225 is the opening of the second cavity 254. Correspondingly, the opening of the second cavity 254 is in a closed state after the cigarette cartridge 10 is installed, and in an open state after the cigarette cartridge 10 is removed, thereby generating the above-mentioned air pressure change.

[0101] In this embodiment, the battery 233 is a rechargeable battery. Figure 8and Fig. 9 The battery device 20 is provided with a charging connection part on a side away from the heating element 21, and the charging connection part is used to connect with a charging stand to charge the battery 233. The charging connection part includes a second circuit board 235, a connecting column 281 and a contact electrode 282. The contact electrode 282 is connected to the second circuit board 235 through the connecting column 281. The battery holder 23 is provided with a through hole for exposing the contact electrode 282. Correspondingly, as Fig.16 and Fig.17 As shown, a charging stand 40 for charging a battery 233 is provided with an electronic cigarette connection part 41 and a power connection part 42, the electronic cigarette connection part 41 is provided with an electronic cigarette slot 411 and a charging column 412 located in the electronic cigarette slot 411, the electronic cigarette slot 411 is used to fix the electronic cigarette, the charging column 412 is used to electrically connect to the contact electrode 282 on the battery device 20, the power connection part 42 is provided with a charging interface, such as a USB interface or a plug, and the electronic cigarette connection part 41 and the power connection part 42 are at a set angle, 90°<set angle<180°, for example, 155°, so as to avoid the electronic cigarette from interfering with protruding objects on the wall during charging.

[0102] Please refer again Figures 8 to 9 In order to allow the user to clean the residue of the heating element 21 as needed, in the present embodiment, an operating part 27 is further provided on the battery device 20, and the operating part 27 is connected to the second circuit board 235, and is used to trigger the controller 29 to control the heating element 21 to work according to preset parameters under the operation of the user to clean the residue on the heating element 21. A through hole is provided at the lower end of the battery holder 23 for accommodating the operating part 27. When the self-cleaning function needs to be used, the user can extend a tool into the through hole and press the operating part 27 to trigger it. The operating part 27 is concealed to avoid misoperation.

[0103] In addition, in order to help users understand the use of e-cigarettes, please combine Figure 1 , Figure 2 and Figure 8 The battery device 20 is also provided with an indicator light 30 , which is fixed to the battery bracket 23 through a lamp post support cover 232 and connected to the first circuit board 234 . A through hole for observing the indicator light 30 is provided on the battery housing 24 .

[0104] With the electronic cigarette having the above structure, the heating element 21 can be arranged on the battery device 20 to reduce the replacement cost of the cigarette cartridge 10. In addition, a dual sensor structure is provided in the battery device 20, which can cooperate with the matching part 153 on the cigarette cartridge 10 to generate a signal when the cigarette cartridge 10 is removed, so that the electronic cigarette can automatically remove the residue on the heating element 21 when the cigarette cartridge 10 is removed, realize self-cleaning, and improve the service life of the heating element 21 and the electronic components in the battery device 10.

[0105] Second embodiment

[0106] Fig.18 It is a schematic cross-sectional view of a cigarette cartridge of an electronic cigarette in a second embodiment of the present invention. Fig.19 FIG. 2 is a cross-sectional schematic diagram of a battery device for an electronic cigarette in a second embodiment of the present invention. Fig.18 and Fig.19 As shown, the main difference between the electronic cigarette of this embodiment and the electronic cigarette of the previous embodiment is that in the cigarette cartridge 50 of this embodiment, the matching portion 553 arranged on the base 55 is not a sealing protrusion, and at the same time, the detection component on the battery device 60 of this embodiment is also different from that of the first embodiment.

[0107] In this embodiment, the detection component includes a state detection circuit (not shown), which is used to detect the installation state of the cigarette cartridge 50. When the cigarette cartridge 50 is installed on the battery device 60, the state detection circuit cooperates with the matching portion 553 and is in a conducting state. When the cigarette cartridge 50 is removed from the battery device 60, the state detection circuit and the matching portion 553 are released and are in a disconnected state. The disconnection signal of the state detection circuit corresponds to the separation signal generated when the cigarette cartridge 50 is removed from the battery device 60. In this embodiment, a switch element 653 is provided in the state detection circuit. When the cigarette cartridge 50 is installed on the battery device 60, the matching portion 553 drives the switch element 653 to conduct the state detection circuit. When the cigarette cartridge 50 is removed from the battery device 60, the switch element 653 separates from the matching portion 553 and resets, so that the state detection circuit is disconnected to generate a separation signal.

[0108] In actual implementation, the switch element 653 includes a pin 651 and a switch button 652. The battery device 60 is provided with a pin mounting through hole on the mounting side of the cigarette cartridge 50. The pin 651 is inserted into the pin mounting through hole. The pin 651 protrudes out of the bracket seal 62 and corresponds to the position of the matching portion 553 on the cigarette cartridge 50. The pin 651 is connected to an elastic element and can automatically reset after the external force is removed. The switch button 652 is arranged on the circuit board where the state detection circuit is located and corresponds to the position of the pin 651. The switch button 652 is connected to an elastic element and can automatically reset after the external force is removed. When the cigarette cartridge 50 is installed on the battery device 60, the matching portion 553 presses the switch button 652 to the closed position through the pin 651. When the cigarette cartridge 50 is removed from the battery device 60, the pin 651 is reset under the action of the corresponding elastic element, and then the switch button 652 is reset to the disconnected position under the action of the corresponding elastic element. At this time, the state detection circuit is disconnected and a separation signal is generated. The mating portion 553 capable of pushing the ejector pin 651 may be a surface, a groove or a protrusion of the base 55 of the cigarette cartridge 50. It only needs to be able to press the ejector pin 651 down with the movement of the cigarette cartridge 50. There is no limitation on the shape. In this embodiment, the lower end surface of the base 55 opposite to the air inlet 152 serves as the mating portion 553.

[0109] It can be understood that the structure of the switch element 653 of the present embodiment is not limited thereto. For example, the switch element 653 is only a switch button, and the matching portion 553 provided on the cigarette cartridge 50 is a push rod. When the cigarette cartridge 50 is installed, the push rod on the cigarette cartridge 50 can press the switch button to the closed position. When the cigarette cartridge 50 is removed from the battery device 60, the push rod leaves the switch button, and the switch button is reset under the action of the corresponding elastic element to disconnect the state detection circuit. Alternatively, the switch element 653 is only a switch button, the top of which protrudes out of the outside of the bracket seal 62, and the matching portion 553 provided on the cigarette cartridge 50 is a plane or a groove. When the cigarette cartridge 50 is installed, the cigarette cartridge 50 can directly press the switch button to the closed position. When the cigarette cartridge 50 is removed from the battery device 60, the cigarette cartridge 50 leaves the switch button, and the switch button is reset under the action of the corresponding elastic element to disconnect the state detection circuit.

[0110] In this embodiment, the battery device 60 is further provided with a third chamber 61 and a third sensor 66. The third chamber 61 is arranged on the battery holder 63. The third chamber 61 is connected to the mouthpiece of the electronic cigarette (please refer to the arrangement of the first chamber 253 in the previous embodiment). The third sensor 66 is arranged in the third chamber 61. The third sensor 66 is used to detect the airflow state in the third chamber 61. When a negative pressure is generated in the third chamber 61 under the action of the user's suction, the third sensor 66 generates an airflow signal, and the controller is used to control the heating element to perform atomization according to the airflow signal. In this way, when the state detection circuit is turned on, the electronic cigarette confirms that the cigarette cartridge 50 is in the installed state. At this time, it is determined whether the user is inhaling according to the airflow signal of the third sensor 66. When the user inhales the electronic cigarette, the air in the third chamber 61 is sucked out along with the mouthpiece, the third chamber 61 is in a negative pressure state, and the airflow signal generated by the third sensor 66 is a high level. At this time, the electronic cigarette controls the heating element to work according to the corresponding working parameters when the electronic cigarette is in the suction state, that is, controls the heating element to perform normal atomization. It should be understood that after the separation signal indicating that the cigarette cartridge 50 is removed from the battery device 60 is detected, it indicates that the cigarette cartridge 50 has been removed. At this time, even if the airflow signal is detected to be at a high level, the heating element is not controlled to work.

[0111] With the electronic cigarette of the above structure, the heating element can be arranged on the battery device 60 to reduce the replacement cost of the cigarette cartridge 50. In addition, a state detection circuit and a resettable switch element 653 are provided in the battery device 60, which can cooperate with the matching part 553 on the cigarette cartridge 50 to generate a signal when the cigarette cartridge 50 is removed, so that the electronic cigarette can automatically remove the residue on the heating element when the cigarette cartridge 50 is removed, realize self-cleaning, and increase the service life of the heating element and the electronic components in the battery device 60.

[0112] In both the first and second embodiments, the mating portion contacts the detection component when the cigarette cartridge is installed on the battery device, and separates from the detection component when the cigarette cartridge is removed from the battery device. The detection component is used to generate a separation signal when it is separated from the mating portion. It can be understood that in other embodiments not shown, the mating portion and the detection component can also adopt other mating methods, as long as the detection component generates a separation signal when the cigarette cartridge is removed from the battery device. For example, the mating portion and the detection component may not be in contact at all times. Specifically, the detection component includes a light source and a light sensor. When the cigarette cartridge is installed on the battery device, the light beam generated by the light source is reflected by the mating portion, so that the light sensor detects the light beam. When the cigarette cartridge is removed, the light beam cannot be reflected, so that the light sensor detects that the light beam disappears, and the light sensor thereby generates a removal signal.

[0113] The electronic cigarette of the present invention comprises a cigarette cartridge and a battery device, the cigarette cartridge and the battery device are detachably connected, the battery device is provided with a heating element, a detection component and a controller, when the cigarette cartridge is removed from the battery device, the detection component generates a separation signal, and the controller is used to control the heating element to work according to the separation signal to remove the residue on the heating element. The present invention can automatically remove the residue on the heating element when the cigarette cartridge is removed from the battery device, thereby increasing the service life of the heating element and the electronic components in the battery device.

[0114] The control method of the electronic cigarette in the above embodiment is described in detail below.

[0115] Fig. 20 FIG. 1 is a flow chart of a method for controlling an electronic cigarette in an exemplary embodiment of the present invention. Fig. 20 As shown, the control method of the electronic cigarette of this embodiment includes but is not limited to the following steps:

[0116] Step S1, detecting a separation signal generated when the cigarette cartridge is removed from the battery device, wherein an aerosol-forming matrix is ​​stored in the cigarette cartridge, and a heating element is provided on the battery device, and the heating element is used to heat the aerosol-forming matrix in the cigarette cartridge when power is turned on;

[0117] Step S2, when the separation signal is detected, the heating element is controlled to work to remove the residue on the heating element.

[0118] Among them, the cigarette cartridge and the battery device are detachably connected. The cigarette cartridge stores an aerosol-forming matrix, such as smoke liquid, smoke paste, tobacco, etc., which can produce inhalable smoke. The battery device is provided with a heating element, which is used to heat the aerosol-forming matrix in the cigarette cartridge to form smoke when powered on. When the cigarette cartridge is removed from the battery device, the liquid absorption element is separated from the heating element. At this time, the heating element may be attached with residues left during use, such as the aerosol-forming matrix remaining on the heating element or other carbonized substances formed after heating. In one embodiment, the aerosol-forming matrix is ​​smoke liquid, and the cigarette cartridge is provided with a corresponding liquid absorption element to supply the smoke liquid to the heating element. When the cigarette cartridge is installed on the battery device, the liquid absorption element is in contact with or close to the heating element, so that the smoke liquid stored in the cigarette cartridge can be supplied to the heating element for atomization.

[0119] In one embodiment, corresponding to the first embodiment, when a first sensor and a second sensor are provided on the battery device, step S1 detects a separation signal generated when the cigarette cartridge is removed from the battery device, including:

[0120] Obtaining a first airflow signal of a first sensor and a second airflow signal of a second sensor, wherein the first sensor is disposed in a first cavity on the battery device, the second sensor is disposed in a second cavity on the battery device, the first cavity is communicated with an airflow channel of the electronic cigarette and isolated from the second cavity, and the second cavity is in a closed state when the cigarette cartridge is installed on the battery device and is in an open state after the cigarette cartridge is removed from the battery device;

[0121] If the first airflow signal is at a low level and the second airflow signal is at a high level, a separation signal generated when the cigarette cartridge is removed from the battery device is detected.

[0122] Among them, the first sensor is arranged in the first cavity on the battery device, and the second sensor is arranged in the second cavity on the battery device. The first cavity is connected with the airflow channel of the electronic cigarette, and the first cavity and the second cavity are not connected with each other but isolated from each other. The second cavity is in a closed state when the cigarette cartridge is installed on the battery device and is in an open state after the cigarette cartridge is removed from the battery device. In actual implementation, a sealing part is provided on the cigarette cartridge, and the sealing part is inserted into the opening of the second cavity and blocks the opening when the cigarette cartridge is installed on the battery device. In this way, when the cigarette cartridge is removed from the battery device, a negative pressure will be generated in the second cavity due to the withdrawal of the sealing part. The pressure causes airflow disturbance, and the second airflow signal of the second sensor is a high-level signal. At the same time, since the user will not inhale when removing the cigarette cartridge, there is no airflow passing through the airflow channel of the electronic cigarette, and the air pressure in the first cavity will not change when the cigarette cartridge is pulled out. Therefore, the first airflow signal of the first sensor is a low-level signal. Therefore, when the first airflow signal is low and the second airflow signal is high, it can be considered that the cigarette cartridge is currently being removed from the battery device. The first airflow signal is low and the second airflow signal is high, which is equivalent to a separation signal that the cigarette cartridge is removed from the battery device.

[0123] When the separation signal is detected, the electronic cigarette controls the heating element to work to remove the residue on the heating element. In actual implementation, the electronic cigarette controls the heating element to work according to the preset parameters, thereby starting the self-cleaning mode to remove the residue on the heating element. Among them, the preset parameters include one of the preset working voltage, the preset temperature and the preset power and the preset working time. The preset working voltage is greater than the working voltage when the electronic cigarette is in the suction state. The preset working voltage can also be equal to the current output voltage of the battery. The preset temperature is greater than the working temperature when the electronic cigarette is in the suction state. The working temperature is also the atomization temperature when the heating element is working normally. The preset power is greater than the working power when the electronic cigarette is in the suction state. The working power is also the atomization power when the heating element is working normally. By adopting a higher working voltage, working temperature or working power, the attached residue can be quickly consumed in a shorter time. The preset working time is a shorter time, for example, 1 second. Of course, in actual implementation, the heating element is controlled to work according to the corresponding working parameters when the electronic cigarette is in the suction state, and the residue on the heating element can also be removed. The only difference is the length of the elimination time.

[0124] When the battery device is provided with a first sensor and a second sensor located in the first cavity and the second cavity respectively, the control method of the electronic cigarette may further include the following steps:

[0125] If the first airflow signal and the second airflow signal are both at a low level or both at a high level, the heating element is controlled not to work.

[0126] Among them, if the first airflow signal and the second airflow signal are both low levels, it means that the electronic cigarette is in an idle state and the heating element does not work. When the electronic cigarette is smoked without installing a cigarette cartridge, airflow will pass through the first cavity and the second cavity, and the first airflow signal and the second airflow signal are both high levels. If a child obtains the electronic cigarette and smokes the electronic cigarette at this time, controlling the heating element to work will cause burns. Therefore, when the first airflow signal and the second airflow signal are both high levels, the heating element does not work.

[0127] When the battery device is provided with a first sensor and a second sensor located in the first cavity and the second cavity respectively, the control method of the electronic cigarette may further include the following steps:

[0128] If the first airflow signal is at a high level and the second airflow signal is at a low level, the heating element is controlled to operate according to the corresponding operating parameters when the electronic cigarette is in a puffing state.

[0129] Among them, when the user draws on the electronic cigarette, there is airflow passing through the airflow channel of the electronic cigarette, and the airflow signal generated by the first sensor is at a high level. At this time, the airflow signal of the second sensor is combined to determine whether the cigarette cartridge is currently in the installed state. When the user draws on the electronic cigarette, only when the second cavity is in a closed state, the second sensor will not detect the airflow change. It can be seen that if the second airflow signal is a low-level signal at this time, it indicates that the second cavity is in a closed state and the cigarette cartridge is installed on the electronic cigarette. Therefore, when the first airflow signal is at a high level and the second airflow signal is at a low level, it indicates that the cigarette cartridge has been installed and the user is drawing. At this time, the electronic cigarette controls the heating element to work according to the corresponding working parameters when the electronic cigarette is in the drawing state, that is, controls the heating element to perform normal atomization work.

[0130] After controlling the heating element to work according to the corresponding working parameters when the electronic cigarette is in the inhalation state, the control method of the electronic cigarette may further include the following steps:

[0131] If the time duration for the resistance value of the heating element to rise to the preset resistance value is less than the preset time duration, the heating element is controlled to stop working;

[0132] If the time length during which the resistance of the heating element rises to the preset resistance length is greater than or equal to the preset time length, the output power of the heating element is controlled so that the resistance of the heating element is maintained at the preset resistance length.

[0133] Among them, the preset resistance value is the atomization resistance value when the electronic cigarette is performing atomization work, which is the normal working resistance value. Usually, an atomization temperature is set for the electronic cigarette when it leaves the factory. The atomization temperature corresponds to the resistance value of a heating element. When the electronic cigarette is working, the battery device outputs a voltage to the heating element to make the heating element work and monitors the resistance value of the heating element in real time. When the resistance value of the heating element reaches the resistance value corresponding to the preset atomization temperature, the output power is controlled so that the resistance value of the heating element is stabilized at the resistance value, that is, the aforementioned atomization resistance value. Of course, the atomization resistance value can also be calculated according to the atomization temperature or power actually set by the user. During the heating process of the electronic cigarette, if the time when the resistance of the heating element rises to the preset resistance value is less than the preset time, it means that the heating element heats up too quickly due to dry burning. In order to protect the cigarette cartridge, the heating is stopped at this time; if the time when the resistance of the heating element rises to the preset resistance value is greater than or equal to the preset time, it means that the heating element is working normally. At this time, the output power of the heating element is controlled so that the resistance of the heating element is stabilized at the preset resistance value. Resistance stability means that the deviation of the resistance of the heating element relative to the preset resistance value is within a smaller range.

[0134] In another embodiment, corresponding to the above second embodiment, when a state detection circuit is provided on the battery device, step S1 detects a separation signal generated when the cigarette cartridge is removed from the battery device, including:

[0135] Obtaining an on / off signal of a status detection circuit, wherein the status detection circuit is used to detect the installation status of the cigarette cartridge, the status detection circuit is arranged on the battery device, the status detection circuit is in an on state when the cigarette cartridge is installed on the battery device, and the status detection circuit is in an off state when the cigarette cartridge is separated from the battery device;

[0136] If the on-off signal is a disconnection signal, a separation signal generated when the cigarette cartridge is removed from the battery device is detected.

[0137] Among them, the state detection circuit is arranged on the battery device for detecting the installation state of the cigarette cartridge. In this embodiment, a switch element for turning on and off the state detection circuit is provided in the state detection circuit. The switch element includes an elastic element and a switch button connected to the elastic element. When the cigarette cartridge is installed on the battery device, the cigarette cartridge presses the switch button on the switch element by pressing the ejector pin arranged on the battery device or the ejector rod arranged on the cigarette cartridge. The elastic element in the switch element is in a deformed state, and the switch element is closed to turn on the state detection circuit. At this time, the on-off signal of the state detection circuit is a on-signal, that is, the state detection circuit changes from an off state to an on state, and the electronic cigarette determines that the installation signal of the cigarette cartridge is detected or that the cigarette cartridge is in an installed state; when the cigarette cartridge is pulled out of the battery device, the cigarette cartridge no longer presses the ejector pin or the ejector rod, the external force of the ejector pin or the ejector rod on the switch button is removed, the deformation of the elastic element in the switch element is restored, the switch button is reset, and the state detection circuit is disconnected. At this time, the on-off signal of the state detection circuit is a disconnection signal, that is, the state detection circuit changes from an on state to an off state, and the electronic cigarette detects the separation signal of the cigarette cartridge.

[0138] When the separation signal is detected, the electronic cigarette controls the heating element to work to remove the residue on the heating element. In actual implementation, the electronic cigarette controls the heating element to work according to the preset parameters, so as to remove the residue on the heating element. Among them, the preset parameters include one of the preset working voltage, the preset temperature and the preset power and the preset duration. The preset working voltage is greater than the working voltage when the electronic cigarette is in the suction state. The preset working voltage can also be equal to the current output voltage of the battery. The preset temperature is greater than the working temperature when the electronic cigarette is in the suction state. The working temperature is also the atomization temperature when the heating element is working normally. The preset power is greater than the working power when the electronic cigarette is in the suction state. The working power is also the atomization power when the heating element is working normally. By adopting a higher working voltage, working temperature or working power, the attached residue can be quickly consumed in a shorter time. For example, the preset working duration is a shorter duration, such as 1 second. Of course, in actual implementation, the heating element is controlled to work according to the corresponding working parameters when the electronic cigarette is in the suction state, and the residue on the heating element can also be removed.

[0139] Wherein, when the battery device is provided with a state detection circuit and a third sensor, the electronic cigarette control method may further include the following steps:

[0140] When the cigarette cartridge is in an installed state, a third airflow signal of a third sensor is obtained, wherein the third sensor is arranged in a third cavity on the battery device, and the third cavity is connected to an airflow channel of the electronic cigarette;

[0141] If the third airflow signal is at a high level, the heating element is controlled to operate according to the corresponding operating parameters when the electronic cigarette is in the inhalation state.

[0142] When the on-off signal of the status detection circuit on the battery device is an on signal, the electronic cigarette confirms that the cigarette cartridge is in the installed state. At this time, it is determined whether the user is inhaling according to the airflow signal of the third sensor. When the user inhales the electronic cigarette, there is airflow passing through the airflow channel of the electronic cigarette, and the airflow signal generated by the third sensor is a high level. At this time, the electronic cigarette controls the heating element to work according to the corresponding working parameters when the electronic cigarette is in the suction state, that is, controls the heating element to perform normal atomization. It should be understood that after detecting the separation signal of the cigarette cartridge being removed from the battery device, it indicates that the cigarette cartridge has been removed and is not installed. At this time, even if the third airflow signal is detected to be a high level, the heating element is not controlled to work.

[0143] After controlling the heating element to work according to the corresponding working parameters when the electronic cigarette is in the inhalation state, the control method of the electronic cigarette may further include the following steps:

[0144] If the time duration for the resistance value of the heating element to rise to the preset resistance value is less than the preset time duration, the heating element is controlled to stop working;

[0145] If the time length during which the resistance value of the heating element rises to the preset resistance value is greater than or equal to the preset time length, the output power of the heating element is controlled so that the resistance value of the heating element is maintained at the preset resistance value.

[0146] Among them, the preset resistance value is the atomization resistance value when the electronic cigarette is performing atomization work, which is the normal working resistance value. Usually, an atomization temperature is set for the electronic cigarette when it leaves the factory. The atomization temperature corresponds to the resistance value of a heating element. When the electronic cigarette is working, the battery device outputs a voltage to the heating element to make the heating element work and monitors the resistance value of the heating element in real time. When the resistance value of the heating element reaches the resistance value corresponding to the preset atomization temperature, the output power is controlled so that the resistance value of the heating element is stabilized at the resistance value, that is, the aforementioned atomization resistance value. Of course, the atomization resistance value can also be calculated according to the atomization temperature or power actually set by the user. During the heating process of the electronic cigarette, if the time when the resistance of the heating element rises to the preset resistance value is less than the preset time, it means that the heating element heats up too quickly due to dry burning. In order to protect the cigarette cartridge, the heating is stopped at this time; if the time when the resistance of the heating element rises to the preset resistance value is greater than or equal to the preset time, it means that the heating element is working normally. At this time, the output power of the heating element is controlled so that the resistance of the heating element is stabilized at the preset resistance value. Resistance stability means that the deviation of the resistance of the heating element relative to the preset resistance value is within a smaller range.

[0147] In one embodiment, the electronic cigarette control method may further include the following steps:

[0148] Controlling the heating element to work according to the received preset operation signal to remove the residue on the heating element;

[0149] During the operation of the heating element, the resistance change rate of the heating element is obtained;

[0150] If the resistance value change rate is less than the preset change rate, the heating element is controlled to stop working;

[0151] If the resistance value change rate is greater than or equal to the preset change rate, the heating element is controlled to work to remove the residue on the heating element.

[0152] Among them, a self-cleaning manual button is also provided at the bottom of the electronic cigarette. When the manual button is pressed, a preset operation signal is generated to control the heating element to work, and the heating element starts to heat and self-clean. The preset change rate refers to the resistance change rate when the heating element works to remove residues without installing the cigarette cartridge. When the heating element works with preset parameters to remove residues, the preset change rate refers to the resistance change rate when the heating element works with preset parameters without installing the cigarette cartridge. During the self-cleaning process, if the cigarette cartridge is still inserted in the electronic cigarette, the heating element will have a resistance change rate less than the preset change rate due to the attachment of more aerosol-forming matrix. At this time, continuing to self-clean will damage the cigarette cartridge. To ensure that the cigarette cartridge is intact, the heating element is controlled to stop working and self-cleaning is stopped. On the contrary, if the resistance change rate is greater than or equal to the preset change rate, it is considered that the heating element is not in contact with the aerosol-forming matrix in the cigarette cartridge, and the residue can be cleaned. At this time, the heating element is controlled to work.

[0153] In the control method of the electronic cigarette of the present invention, an aerosol-forming matrix is ​​stored in the cartridge of the electronic cigarette, and a heating element is provided on the battery device. The heating element is used to heat the aerosol-forming matrix in the cartridge when power is turned on. When a separation signal indicating that the cartridge is removed from the battery device is detected, the heating element is controlled to work to remove the residue on the heating element. In this way, the present invention can automatically remove the residue on the heating element for self-cleaning when the cartridge is removed from the battery device, thereby increasing the service life of the heating element.

[0154] Fig.21 FIG. 1 is a schematic diagram of the structure of an electronic cigarette in an exemplary embodiment of the present invention. Fig.21 As shown, the present invention further provides an electronic cigarette, including a memory 310 and a processor 320, the memory 310 stores at least one program instruction, and the processor 320 implements the above-mentioned electronic cigarette control method by loading and executing the at least one program instruction.

[0155] For specific steps executed by the processor 320 in this embodiment, please refer to Figures 1 to 20 The description of the illustrated embodiment will not be repeated here.

[0156] The present invention also provides a computer storage medium, on which computer program instructions are stored; when the computer program instructions are executed by a processor, the electronic cigarette control method as described above is implemented.

[0157] The aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), disk, optical disk or cloud and other media that can store program code.

[0158] The specific steps implemented when the computer program instructions stored in the computer storage medium of this embodiment are executed by the processor are shown in FIG. Figures 1 to 21 The description of the illustrated embodiment will not be repeated here.

[0159] The above are only preferred embodiments of the present invention, and are not intended to limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with the profession can make some changes or modifications to equivalent embodiments of equivalent changes using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. An electronic cigarette, comprising a cigarette cartridge and a battery device, wherein the cigarette cartridge and the battery device are detachably connected, characterized in that: The cigarette cartridge includes an aerosol-forming matrix, and the battery device is provided with a heating element, a detection component and a controller. When the cigarette cartridge is installed on the battery device, the heating element is used to heat the aerosol-forming matrix under the control of the controller. The detection component is used to generate a separation signal when the cigarette cartridge is removed from the battery device, and the controller is used to control the heating element to remove residues on the heating element according to the separation signal. The detection component includes a first cavity, a second cavity, a first sensor and a second sensor. The first cavity and the second cavity are isolated from each other. The first sensor is arranged in the first cavity, and the second sensor is arranged in the second cavity. When the cigarette cartridge is removed from the battery device, the airflow signal of the first sensor is low, and the airflow signal of the second sensor is high. When the airflow signal of the first sensor is low and the airflow signal of the second sensor is high, it corresponds to the separation signal.

2. The electronic cigarette according to claim 1, characterized in that: The first cavity is connected to the outside. When the cigarette cartridge is removed from the battery device, the air pressure in the first cavity remains unchanged, so that the airflow signal of the first sensor is at a low level.

3. The electronic cigarette according to claim 1, characterized in that: The cigarette cartridge also includes a matching part. When the cigarette cartridge is installed on the battery device, the matching part matches with the second cavity. When the cigarette cartridge is removed from the battery device, the matching part and the second cavity are released, so that negative pressure is generated in the second cavity, thereby making the airflow signal of the second sensor high level.

4. The electronic cigarette according to claim 3, characterized in that: When the cigarette cartridge is installed on the battery device, the matching portion closes the opening of the second cavity, and when the cigarette cartridge is removed from the battery device, the matching portion opens the opening of the second cavity; alternatively, the detection component further includes a deformation portion, which is arranged at the opening of the second cavity and cooperates with the second cavity to form an enclosed space for accommodating the second sensor, and when the cigarette cartridge is installed on the battery device, the matching portion is inserted into the deformation portion, and when the cigarette cartridge is removed from the battery device, the matching portion is separated from the deformation portion.

5. The electronic cigarette according to claim 1, characterized in that: The cigarette cartridge also includes a mating part, and the detection component includes a state detection circuit, and the state detection circuit is used to detect the installation state of the cigarette cartridge. When the cigarette cartridge is installed on the battery device, the state detection circuit cooperates with the mating part and is in a conductive state. When the cigarette cartridge is removed from the battery device, the state detection circuit is released from the mating part and is in a disconnected state. The disconnection signal of the state detection circuit corresponds to the separation signal.

6. The electronic cigarette according to claim 5, characterized in that: A switch element is provided in the state detection circuit. When the cigarette cartridge is installed on the battery device, the matching part drives the switch element to turn on the state detection circuit. When the cigarette cartridge is removed from the battery device, the switch element is separated from the matching part and reset, so that the state detection circuit is disconnected to generate the separation signal.

7. The electronic cigarette according to claim 6, characterized in that: The switch element includes an ejector pin and a switch button. The battery device is provided with an ejector pin mounting through hole on the cigarette cartridge mounting side. The ejector pin is inserted into the ejector pin mounting through hole. The switch button is arranged on the circuit board where the status detection circuit is located and corresponds to the position of the ejector pin. When the cigarette cartridge is installed on the battery device, the matching portion presses the switch button to a closed position through the ejector pin. When the cigarette cartridge is removed from the battery device, the ejector pin is reset to reset the switch button to a disconnected position.

8. The electronic cigarette according to claim 5, characterized in that: The battery device is also provided with a third cavity and a third sensor, wherein the third sensor is arranged in the third cavity, and the cigarette cartridge includes a cigarette holder, wherein the third cavity is connected to the cigarette holder, and when the cigarette cartridge is installed on the battery device and inhaled through the cigarette holder, the airflow signal of the third sensor is at a high level, and the controller controls the heating element to perform atomization.

9. The electronic cigarette according to any one of claims 1 to 8, characterized in that: The battery device further comprises a battery housing, a battery bracket and a battery. The battery bracket is arranged in the battery housing, and the battery, the detection component and the heating element are arranged on the battery bracket.

10. The electronic cigarette according to any one of claims 1 to 8, characterized in that: The battery device is provided with a charging connection part on a side away from the heating element, and the charging connection part is used to connect to a charging stand. The charging stand is provided with an electronic cigarette connection part and a power connection part. There is a set angle between the electronic cigarette connection part and the power connection part, and 90°<the set angle<180°.

11. The electronic cigarette according to any one of claims 1 to 8, characterized in that: The cigarette cartridge also includes a cigarette cartridge shell and a sealing member. A liquid storage chamber for storing the aerosol-forming matrix is ​​formed in the cigarette cartridge shell. The aerosol-forming matrix is ​​liquid smoke. The sealing member penetrates into the liquid storage chamber from the outside of the cigarette cartridge and blocks the liquid outlet of the liquid storage chamber. When the sealing member is pulled in a direction away from the liquid storage chamber, the sealing member is separated from the liquid outlet, the liquid outlet is opened, and the liquid storage chamber supplies the liquid smoke to the heating element.

12. The electronic cigarette according to claim 11, characterized in that The liquid storage chamber is sealed by a sealing gasket at one end relative to the liquid outlet, and an operating part perforation is provided on the sealing gasket. The sealing member includes an operating part and a sealing part, and the sealing part includes a first sealing part and a second sealing part connected to each other. One end of the operating part protrudes out of the outside of the cigarette cartridge, and the other end of the operating part extends into the liquid storage chamber and is connected to the first sealing part. A transverse notch is provided at the connection between the first sealing part and the operating part, and the second sealing part is used to seal the liquid outlet. When the operating part is pulled in a direction away from the liquid storage chamber, the second sealing part can be separated from the liquid outlet. The liquid outlet is opened, and the operating part is continued to be pulled in a direction away from the liquid storage chamber until the second sealing part abuts against the sealing gasket. The first sealing part is inserted into the operating part perforation to seal the operating part perforation, and the operating part and the first sealing part are disconnected by the transverse notch.

13. The electronic cigarette according to claim 12, characterized in that: When injecting liquid into the liquid storage chamber, the injection needle passes through the sealing gasket and extends into the liquid storage chamber to inject liquid into the liquid storage chamber. At the same time, the exhaust needle passes through the sealing gasket and extends into the liquid storage chamber to exhaust the air in the liquid storage chamber. After the injection needle and the exhaust needle are pulled out, the sealing gasket forms a self-seal.

14. The electronic cigarette according to any one of claims 3 to 8, characterized in that: The cigarette cartridge further comprises a base, the base is provided with an atomizing chamber and the matching portion, and the heating element is located in the atomizing chamber when the cigarette cartridge is mounted on the battery device.

15. The electronic cigarette according to any one of claims 1 to 8, characterized in that: The battery device is also provided with an operating unit, and the operating unit is used to trigger the controller to control the heating element to work according to preset parameters to remove residues on the heating element.

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