Cartridge and Electronic Cigarette

Abstract

The present invention discloses a cartridge, which includes a cartridge housing having a liquid storage cavity, a sealing member for sealing the liquid storage cavity, a shielding member provided on the cartridge housing, an atomization cavity, a smoke outlet channel and an air inlet channel. The atomization cavity is in communication with the liquid storage cavity, the smoke outlet channel and the air inlet channel. The sealing member is located between the shielding member and the cartridge housing. The shielding member forms a part of the outer contour of the cartridge, such that the sealing member is shielded by the shielding member. A communication port is provided on the shielding member. The sealing member is an elastic deformable member. A liquid injection needle passes through the communication port and the sealing member and then extends into the liquid storage cavity for liquid injection. The air in the liquid storage cavity enters the atomization cavity and is discharged through the air inlet channel and / or the smoke outlet channel. When the liquid injection needle is withdrawn, the sealing member automatically resumes sealing the liquid storage cavity. The present invention also discloses an electronic cigarette with the cartridge.

Description

Technical Field

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

[0002] An electronic cigarette includes a cartridge and a battery assembly electrically connected to the cartridge. An atomizing member is provided in the cartridge. The atomizing member heats the e-liquid stored in the cartridge under the electric drive of the battery assembly to generate a smoke, and the smoke is sucked by the user.

[0003] For the liquid injection operation of the existing cartridge, most of them need to first remove the seal to expose the liquid injection port, and then inject the e-liquid into the liquid storage cavity through the liquid injection port. After the liquid injection is completed, the seal needs to be installed again in the liquid injection port to prevent the e-liquid from leaking. Thus, for both users and manufacturers, this liquid injection process is relatively cumbersome. In addition, since the seal is generally relatively soft and difficult to be clamped by a device for automatic installation, for manufacturers, this liquid injection method is difficult to achieve automated operation. Summary of the Invention

[0004] In order to solve the problem that the green indicator of an electronic device in the prior art is difficult to accurately indicate whether the battery assembly is fully charged, an embodiment of the present invention provides a charging state indication circuit and an electronic device. The technical solution is as follows:

[0005] In a first aspect, a charging state indication circuit is provided, which includes: a first-color light-emitting diode D5, a second-color light-emitting diode D4, a diode D3, a first resistor R15, and a second resistor R5, wherein:

[0006] The anode of the first-color light-emitting diode D5 is electrically connected to a power supply through the first resistor R15, and the cathode of the first-color light-emitting diode D5 is electrically connected to the charging state indication terminal 11 of a charging chip U3; one end of the second resistor R5 is electrically connected to the power supply, the other end of the second resistor R5 is electrically connected to the anode of the diode D3, and the cathode of the diode D3 is electrically connected to the charging state indication terminal 11; the other end of the second resistor R5 is also electrically connected to the anode of the second-color light-emitting diode D4, and the cathode of the second-color light-emitting diode D4 is grounded;

[0007] During the charging process, the charging chip U3 outputs a low voltage through the charging state indication terminal 11 to light up the first-color light-emitting diode D5; when the battery assembly is fully charged, the charging chip U3 controls the charging state indication terminal 11 to be in a high-impedance state to light up the second-color light-emitting diode D4.

[0008] Optionally, the first color light-emitting diode D5 and the second color light-emitting diode D4 are encapsulated in a lamp group.

[0009] Optionally, the charging status indication circuit further includes: an overvoltage protection chip U7 and a connector J2. The first power receiving end 14 of the overvoltage protection chip U7 is connected to the power output end 15 of the connector J2. The status indication end 16 of the overvoltage protection chip U7 is electrically connected to the enable end 13 of the charging chip U3. The voltage detection end 18 of the overvoltage protection chip U7 is grounded through a third resistor, where:

[0010] When the voltage at the voltage detection end 18 of the overvoltage protection chip U7 reaches the reference voltage, the overvoltage protection chip U7 outputs a high level through the status indication end 16 to stop the charging chip U3 from working. The status indication end 16 is active low;

[0011] When the voltage at the voltage detection end 18 of the overvoltage protection chip U7 is lower than the reference voltage, the overvoltage protection chip U7 outputs a low level through the status indication end 16 to make the charging chip U3 work.

[0012] Optionally, the status indication end 16 of the overvoltage protection chip U7 is grounded through a third color light-emitting diode.

[0013] Optionally, the charging status indication circuit further includes: a battery protection chip U1. The battery protection chip U1 includes a second power receiving end 41, a grounding end 42, and a charging detection end 43;

[0014] The second power receiving end 41 of the battery protection chip U1 is connected to the positive electrode of the battery assembly. The second grounding end of the battery protection chip U1 is connected to the negative electrode of the battery assembly. The grounding end 42 and the charging detection end 43 of the battery protection chip U1 are grounded.

[0015] Optionally, the charging chip U3 includes a third power receiving end 12 and a charging voltage output end 10. The third power receiving end 12 is connected to an external power supply through the connector J2. The charging voltage output end 10 is used to output a charging voltage to the positive electrode of the battery assembly.

[0016] Optionally, the charging status indication circuit further includes: a control chip U6. The control chip U6 includes a first control signal input end 20 and a modulation signal output end 23. The first control signal input end 20 is electrically connected to the first control signal output end 24 of the suction detection element J3;

[0017] Step-down switching chip U2, the step-down switching chip U2 includes a first path terminal 26, a first control terminal 27 and a second path terminal 28. The first path terminal 26 of the step-down switching chip U2 receives the system power supply voltage, and the first control terminal 27 of the step-down switching chip U2 is connected to the modulation signal output terminal 23 of the control chip U6;

[0018] Wherein, when the first control signal input terminal 20 receives a valid level, the modulation signal output terminal 23 of the control chip U6 outputs a pulse modulation signal to the first control terminal 27 of the step-down switching chip U2, so that when the first control terminal 27 of the step-down switching chip U2 receives a pulse width modulation signal of a valid level, it controls the first path terminal 26 and the second path terminal 28 to conduct, and further enables the second path terminal 28 to output a driving voltage whose voltage value is less than the system power supply voltage value.

[0019] Optionally, the control chip U6 further includes: a second control signal input terminal, the second control signal input terminal is connected to the second control signal output terminal of the touch sensing chip U8, and the touch input pin 25 of the touch sensing chip U8 is connected to the touch panel;

[0020] When the second control signal input terminal receives a valid level, the modulation signal output terminal 23 of the control chip U6 outputs the pulse modulation signal to the first control terminal 27 of the step-down switching chip U2.

[0021] Optionally, the first enable signal output terminal of the control chip U6 is electrically connected to the second control terminal 30 of the switching element Q11. The third path terminal 19 of the switching element Q11 is grounded, and the fourth path terminal 29 of the switching element Q11 is electrically connected to the negative electrode of the motor. The positive electrode of the motor receives the system power supply voltage;

[0022] Wherein, when the second control signal input terminal receives a valid level, the switching element Q11 controls the third path terminal 19 and the fourth path terminal 29 to conduct according to the enable signal provided by the first enable signal output terminal of the control chip U6, so that the motor is powered on to work.

[0023] In a second aspect, an electronic device is provided, and the electronic device includes the charging state indication circuit involved in the first aspect and any optional implementation manner of the first aspect.

[0024] The beneficial effects brought by the technical solutions provided by the embodiments of the present invention are:

[0025] By providing a charging state indicating circuit, which includes a first-color light-emitting diode D5, a second-color light-emitting diode D4, a diode D3, a first resistor R15 and a second resistor R5, wherein: the anode of the first-color light-emitting diode D5 is electrically connected to a power supply through the first resistor R15, and the cathode of the first-color light-emitting diode D5 is electrically connected to the charging state indicating terminal 11 of a charging chip U3; one end of the second resistor R5 is electrically connected to the power supply, the other end of the second resistor R5 is electrically connected to the anode of the diode D3, and the cathode of the diode D3 is electrically connected to the charging state indicating terminal 11; the other end of the second resistor R5 is also electrically connected to the anode of the second-color light-emitting diode D4, and the cathode of the second-color light-emitting diode D4 is grounded; the charging chip U3 outputs a low voltage through the charging state indicating terminal 11 during the charging process to light up the first-color light-emitting diode D5; the charging chip U3 controls the charging state indicating terminal 11 to be in a high-impedance state when the battery assembly is fully charged to light up the second-color light-emitting diode D4; it solves the problem that it is difficult for the green indicator light of current electronic devices to accurately indicate whether the battery assembly is fully charged; and achieves the effect of accurately prompting the charging state of the battery assembly.

[0026] In view of at least one of the above technical problems, it is necessary to provide a cartridge that is convenient for liquid injection;

[0027] It is also necessary to provide an electronic cigarette with such a cartridge.

[0028] The technical solution adopted by the present invention to solve its technical problems is: a cartridge, the cartridge includes a cartridge housing having a liquid storage cavity, a sealing member for sealing the liquid storage cavity, a shielding member provided on the cartridge housing, an atomization cavity, a smoke outlet channel and an air inlet channel, the atomization cavity is communicated with the liquid storage cavity, the smoke outlet channel and the air inlet channel, the sealing member is located between the shielding member and the cartridge housing, the shielding member constitutes a part of the outer contour of the cartridge, so that the sealing member is shielded by the shielding member, a communication port is provided on the shielding member, the sealing member is an elastic deformable member, a liquid injection needle penetrates through the communication port and pierces into the sealing member, and then extends into the liquid storage cavity through the sealing member to inject e-liquid, the air in the liquid storage cavity enters the atomization cavity and is discharged through the air inlet channel and / or the smoke outlet channel, and when the liquid injection needle is pulled out, the sealing member automatically resumes sealing the liquid storage cavity.

[0029] Further, the cartridge further includes a mouthpiece and a base. The mouthpiece is disposed at one end of the cartridge housing along the axial direction of the cartridge housing. An air outlet is formed in the mouthpiece. The base is disposed at the other end of the cartridge housing opposite to the mouthpiece along the axial direction of the cartridge housing. The liquid storage cavity is disposed in the cartridge housing along the axial direction of the cartridge housing. One of the mouthpiece and the base serves as the shielding member.

[0030] Further, the cartridge further includes a liquid guiding member. The liquid guiding member is made of a porous material and has a hollow structure with both ends penetrating therethrough. The inner cavity of the liquid guiding member constitutes the atomization cavity. The liquid guiding member is disposed along the axial direction of the cartridge housing. At least a part of the liquid guiding member is received in the liquid storage cavity, and the liquid guiding member is located at one end of the liquid storage cavity close to the base. The smoke outlet channel is located in the liquid storage cavity and is isolated from the liquid storage cavity.

[0031] Further, the cartridge further includes a sealing member disposed between the mouthpiece and the cartridge housing. The mouthpiece serves as the shielding member, the sealing member serves as a sealing component, and the air outlet serves as a communication port.

[0032] Further, two liquid injection holes symmetric about the central axis of the cartridge are formed in the cartridge housing. The liquid injection holes are communicated with the liquid storage cavity. Two sealing portions for sealing the liquid injection holes protrude from the lower end surface of the sealing member. Two liquid injection grooves corresponding to the two sealing portions are formed in the upper end surface of the sealing member. There are two air outlets, and the two air outlets correspond to the two liquid injection grooves one by one.

[0033] Further, the cartridge further includes a sealing plug and a ventilation pipe. The sealing plug seals one end of the liquid storage cavity close to the base. The sealing plug is located between the cartridge housing and the base. The ventilation pipe is received in the liquid storage cavity. One end of the ventilation pipe is matched with the liquid guiding member, and the other end of the ventilation pipe is connected to the end of the cartridge housing provided with the mouthpiece. The smoke outlet channel is formed by the inner cavity of the ventilation pipe.

[0034] Further, one end of the ventilation pipe is sleeved outside the liquid guiding member. A liquid inlet communicating with the liquid storage cavity is formed in the ventilation pipe. The liquid guiding member is attached to the inner wall of the ventilation pipe corresponding to the liquid inlet, or one end of the ventilation pipe abuts against the liquid guiding member, and the outer peripheral wall of the liquid guiding member is exposed in the liquid storage cavity.

[0035] Further, an air inlet cavity separated from the liquid storage cavity is axially arranged in the cartridge housing along the axial direction of the cartridge housing. An air inlet hole is formed in the side wall of the cartridge housing. A ventilation gap is left between the base and the sealing plug. The air inlet cavity is communicated with the air inlet hole and the ventilation gap respectively. The air inlet channel includes the air inlet hole, the air inlet cavity and the ventilation gap.

[0036] Further, the base serves as the shielding member, the sealing portion serves as the sealing component, and a communication port is formed in the base.

[0037] Further, the cartridge further includes a magnetic member arranged on the base.

[0038] Further, an induction channel separated from both the liquid storage cavity and the air inlet cavity is also axially arranged in the cartridge housing along the axial direction of the cartridge housing. An induction notch is formed in the base. The induction channel is communicated with the induction notch and the smoke outlet respectively.

[0039] An electronic cigarette, which includes the cartridge according to any one of the foregoing items.

[0040] The beneficial effects of the present invention are as follows: For the cartridge or the electronic cigarette provided by the present invention, after the cartridge is assembled, a liquid injection needle is used to pierce the sealing component for liquid injection. After the liquid injection is completed, the liquid injection needle is pulled out, and the sealing component automatically resumes sealing, thereby facilitating the liquid injection operation for users and manufacturers, and facilitating the manufacturer to achieve automated liquid injection. The above process can be realized without disassembling the cartridge, with simple operation and convenient use.

[0041] A cartridge for an electronic cigarette including a battery assembly, the cartridge includes an atomization assembly, the atomization assembly includes an atomizer, a conductive sheet, a first electrode and a second electrode. The atomizer includes a heating element. Two ends of the heating element are respectively in contact with the first electrode and the second electrode to achieve electrical connection. The conductive sheet is in contact with the second electrode to achieve electrical connection, and the conductive sheet is spaced from the first electrode to achieve electrical isolation. The battery assembly is provided with a first terminal and a second terminal. When the cartridge is connected to the battery assembly, the first terminal is electrically connected to the first electrode, and the second terminal is electrically connected to the conductive sheet.

[0042] Further, the cartridge further includes a base. A placement groove is formed by partial depression of the lower end surface of the base. The conductive sheet is installed in the placement groove. The first electrode and the second electrode both insert into the base from the lower end surface of the base and penetrate through the base to extend out from the upper end surface of the base. The second electrode is located on one side of the first electrode. The conductive sheet is sleeved outside the second electrode and extends to the other side of the first electrode after bypassing the first electrode.

[0043] Further, the base has insulation, and a part of the lower end surface of the base is disposed between the conductive sheet and the first electrode.

[0044] Further, the upper ends of the first electrode and the second electrode are both open, and two ends of the heating element respectively extend into the openings of the first electrode and the second electrode. When a clamping force is applied to the openings of the first electrode and the second electrode, the openings of the first electrode and the second electrode clamp two ends of the heating element, or two ends of the heating element are respectively clamped between the first electrode and the base and between the second electrode and the base.

[0045] Further, the atomization assembly further includes a sealing plug and a ventilation pipe, the atomizing member further includes a liquid guiding member, the sealing plug is disposed on the base, and there is a ventilation gap between the sealing plug and the base. One end of the ventilation pipe is disposed on the sealing plug, the liquid guiding member is received in one end of the ventilation pipe close to the sealing plug, the inner cavity of the liquid guiding member forms an atomization chamber, the heating element is received in the atomization chamber, the inner cavity of the ventilation pipe forms a smoke outlet channel, and the atomization chamber is communicated with both the smoke outlet channel and the ventilation gap.

[0046] Further, an induction notch isolated from the ventilation gap is formed on the base.

[0047] An electronic cigarette, the electronic cigarette includes a battery assembly and the cartridge according to any one of the foregoing items, and the battery assembly is provided with a first terminal and a second terminal.

[0048] Further, the battery assembly includes a battery housing and a battery bracket received in the battery housing, the first terminal and the second terminal are both disposed on the upper end surface of the battery bracket. When the cartridge is inserted into the battery housing, the lower end surface of the cartridge abuts against the upper end surface of the battery bracket.

[0049] Further, a first magnetic member is disposed on the upper end surface of the battery bracket corresponding to the second electrode. When the cartridge is inserted into the battery housing, the first magnetic member and the second electrode are magnetically attracted to each other.

[0050] Further, a second magnetic member is disposed on the battery bracket, the second magnetic member is sleeved on the outer periphery of the second terminal. When the cartridge is inserted into the battery housing, the second magnetic member and the conductive sheet are magnetically attracted to each other.

[0051] The beneficial effects of the present invention are as follows: The cartridge or electronic cigarette provided by the present invention, by providing a conductive sheet, enables higher degrees of freedom in the installation of the first electrode, the second electrode, the first terminal, and the second terminal, and can be customized according to the actual needs of users. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] The present invention will be further described below in conjunction with the drawings and embodiments.

[0053] Figure 1-1 is a circuit connection diagram of a charging state indication circuit provided by the present invention;

[0054] Figure 1-2 is a schematic connection diagram of a voltage output circuit in a charging state indication circuit provided by the present invention;

[0055] Figure 1-3 is a circuit connection diagram of another charging state indication circuit provided by the present invention;

[0056] Figure 1-4 is a schematic diagram of the pins of a touch chip provided by the present invention;

[0057] Figure 1-5 is a schematic diagram of a motor connection provided by an embodiment of the present invention;

[0058] Figure 1-6 is a schematic diagram of the pins of a battery protection chip U1 provided by an embodiment of the present invention;

[0059] Figure 2-1 is a three-dimensional view of an electronic cigarette according to Embodiment 2 of the present invention;

[0060] Figure 2-2 is a three-dimensional view of the electronic cigarette according to Embodiment 2 of the present invention from another perspective;

[0061] Figure 2-3 is a top view of the electronic cigarette according to Embodiment 2 of the present invention;

[0062] Figure 3 is an exploded view of the electronic cigarette shown in FIG. 2;

[0063] Figure 4 is Figure 3 an exploded view of the cartridge in the electronic cigarette shown;

[0064] Figure 5 is Figure 4 a three-dimensional view of the cartridge housing in the cartridge shown;

[0065] Figure 6 is Figure 4 a three-dimensional view of the cartridge housing in the cartridge shown from another perspective;

[0066] Figure 7 isFigure 4 A perspective view of the cartridge housing of the cartridge shown;

[0067] Figure 8 is Figure 4 A perspective view of the seal of the cartridge shown;

[0068] Figure 9 is Figure 4 Another perspective view of the seal of the cartridge shown;

[0069] Figure 10 is Figure 4 Another perspective view of the seal of the cartridge shown;

[0070] Figure 11 is Figure 4 A perspective view of the mouthpiece of the cartridge shown;

[0071] Figure 12 is Figure 4 An exploded view of the atomization assembly of the cartridge shown;

[0072] Figure 13 is Figure 4 Another exploded view of the atomization assembly of the cartridge shown

[0073] Figure 14 is Figure 12 A perspective view of the base of the atomization assembly shown;

[0074] Figure 15 is Figure 12 Another perspective view of the base of the atomization assembly shown;

[0075] Figure 16 is Figure 12 A perspective view of the sealing plug of the atomization assembly shown;

[0076] Figure 17 is Figure 12 Another perspective view of the sealing plug of the atomization assembly shown;

[0077] Figure 18 is Figure 4 A cross-sectional view of the atomization assembly of the cartridge shown;

[0078] Figure 19 is Figure 3 A cross-sectional view of the cartridge of the electronic cigarette shown;

[0079] Figure 20 is Figure 3 An exploded view of the battery assembly of the electronic cigarette shown;

[0080] Figure 21 is Figure 3 The cross-sectional view of the battery assembly of the electronic cigarette described;

[0081] Figure 22 is a cross-sectional view of the electronic cigarette shown in Figure 1;

[0082] Figure 23 is Figure 3 a cross-sectional view of the cartridge of the electronic cigarette shown in the state of liquid injection;

[0083] Figure 24 is a cross-sectional view of the cartridge of Embodiment 3 of the present invention;

[0084] Figure 25 is Figure 24 a cross-sectional view of the cartridge shown in the state of liquid injection.

[0085] The names and numbers of the components in the figure are as follows:

[0086] cartridge 50, 500 cartridge housing 51 first partition 511

[0087] second partition 512 liquid storage chamber 510 induction chamber 514

[0088] air intake chamber 513 receiving groove 515 smoke outlet notch 5151

[0089] liquid injection hole 5152 induction port 5153 induction tube 516

[0090] induction channel 5161 air intake hole 517 first card slot 518

[0091] second card slot 519 positioning rib 5111 seal 52

[0092] limiting rib 521 smoke outlet hole 522 sealing portion 523

[0093] sealing protrusion 524 induction hole 5241 installation groove 525

[0094] liquid injection groove 526 air guide groove 527 induction groove 528

[0095] liquid absorption member 5251 through hole 5252 mouthpiece 53

[0096] first buckle 531 smoke outlet 532 protrusion 533

[0097] opening 534 air intake 535 guide sliding rib 536

[0098] atomization assembly 54 base 541 second buckle 5411

[0099] abutting edge 5412 placement groove 5413 induction notch 5414

[0100] first electrode port 5415 second electrode port 5416 air intake groove 5417

[0101] Sealing plug 542, Ventilation gap 5420, Sealing plate 5421

[0102] Sealing column 5422, Sealing rib 5427, Intake notch 5423

[0103] First electrode hole 5424, Second electrode hole 5425, Inductive through hole 5426

[0104] Conductive sheet 543, Vent pipe 544, Ventilation section 5441

[0105] Socketing section 5442, Smoke outlet channel 5443, Atomization chamber 5444

[0106] Atomization member 545, Heating member 5451, Liquid guiding member 5452

[0107] First electrode 546, Second electrode 547, Liquid injection needle 70

[0108] Battery assembly 60, Battery case 61, Receiving cavity 611

[0109] Guide groove 612, Inductive gap 613, Sensor 6131

[0110] Decorative plate 614, Glue stealing port 615, Battery bracket 62

[0111] First terminal 621, Second terminal 622, First magnetic member 623

[0112] Inductive through groove 624, Sealing ring 625, Battery 63

[0113] Control board 64, USB socket 641, Magnetic attracting member 5418

[0114] Sealing gasket 5446, Ventilation sealing member 5428, Liquid inlet 5445

[0115] First surface 91, Second surface 92, Third surface 93

[0116] Fourth surface 94, Fifth surface 95, Sixth surface 96

[0117] Seventh surface 97, Eighth surface 98, Top surface 910

[0118] Bottom surface 920, Communication port 548 Detailed implementation mode

[0119] Now, the present invention will be described in detail with reference to the accompanying drawings. This figure is a simplified schematic diagram, which only illustrates the basic structure of the present invention in a schematic manner, so it only shows the components related to the present invention.

[0120] Embodiment 1

[0121] Please refer to Figure 1-1 , which is the circuit connection diagram of a charging state indication circuit provided by the present invention. As Figure 1-1 shown, the charging state indication circuit 100 provided in this embodiment includes a first-color light-emitting diode D5, a second-color light-emitting diode D4, a diode D3, a first resistor R15, and a second resistor R5, where:

[0122] The anode of the first-color light-emitting diode D5 is electrically connected to the power supply (for example, the 5V power supply shown in the figure) through the first resistor R15, and the cathode of the first-color light-emitting diode D5 is electrically connected to the charging state indication terminal 11 of the charging chip U3; one end of the second resistor R5 is electrically connected to the power supply, and the other end of the second resistor R5 is electrically connected to the anode of the diode D3, and the cathode of the diode D3 is electrically connected to the charging state indication terminal 11; the other end of the second resistor R5 is also electrically connected to the anode of the second-color light-emitting diode D4, and the cathode of the second-color light-emitting diode D4 is grounded;

[0123] During the charging process, the charging chip U3 outputs a low voltage through the charging state indication terminal 11. The first resistor R15, the first-color light-emitting diode D5, and the charging state indication terminal 11 of the charging chip U3 form a loop to light up the first-color light-emitting diode D5. The second resistor R5 and the second-color light-emitting diode D4 do not form a loop and the second-color light-emitting diode D4 is not lit; when the battery module is fully charged, the charging chip U3 controls the charging state indication terminal 11 to be in a high-impedance state, and the second resistor R5 and the second-color light-emitting diode D4 form a loop to light up the second-color light-emitting diode D4.

[0124] Among them, the first color displayed when the first-color light-emitting diode D5 is lit is different from the second color displayed when the second-color light-emitting diode D4 is lit. Optionally, the first color is green and the second color is blue. In actual implementation, the first color and the second color can also be other different colors, which will not be elaborated one by one in this embodiment.

[0125] Optionally, as Figure 1-1 shown, the third power supply receiving terminal 12 of the charging chip U3 is connected to the power supply output terminal 15 of the connector J2, and is electrically connected to an external power supply through the connector J2 to receive the current provided by the external power supply; the charging voltage output terminal 10 of the charging chip U3 is connected to the positive electrode of the battery module (for example, the battery module BAT1 as Figure 1-1 shown), and is used to output the charging voltage to the positive electrode of the battery module. In one implementation, the third power supply receiving terminal 12 and the charging voltage output terminal 10 are respectively the VIN pin and the BATT pin of the charging chip U3.

[0126] Optionally, as Figure 1-1As shown, the enable terminal 13 of the charging chip U3 is grounded, and the enable terminal 13 of the charging chip U3 is active low. That is to say, the charging chip U3 works when its enable terminal 13 receives a low level, and stops working and stops charging the battery assembly when it receives a high level.

[0127] Optionally, as Figure 1-1 shown, the NTC terminal 14 of the charging chip U3 is electrically connected to the power supply through the thermistor R17, and the NTC terminal 14 is also grounded through the resistor R19.

[0128] Optionally, please refer to Figure 1-1 and Figure 1-2 shown, the power output terminal 15 of the connector J2 is electrically connected to the Universal Serial Bus (USB) detection pin 17 of the control chip U6 through the resistor R6, and the USB detection pin 17 of the control chip U6 is also grounded through the resistor R12. The USB detection pin 17 of the control chip U6 determines whether there is a USB inserted into the connector J2 according to the voltage it detects.

[0129] In summary, the charging status indication circuit provided by the embodiment of the present invention provides a charging status indication circuit, which includes a first color light-emitting diode D5, a second color light-emitting diode D4, a diode D3, a first resistor R15, and a second resistor R5, wherein: the anode of the first color light-emitting diode D5 is electrically connected to the power supply through the first resistor R15, and the cathode of the first color light-emitting diode D5 is electrically connected to the charging status indication terminal 11 of the charging chip U3; one end of the second resistor R5 is electrically connected to the power supply, the other end of the second resistor R5 is electrically connected to the anode of the diode D3, and the cathode of the diode D3 is electrically connected to the charging status indication terminal 11; the other end of the second resistor R5 is also electrically connected to the anode of the second color light-emitting diode D4, and the cathode of the second color light-emitting diode D4 is grounded; the charging chip U3 outputs a low voltage through the charging status indication terminal 11 during the charging process to light up the first color light-emitting diode D5; the charging chip U3 controls the charging status indication terminal 11 to be in a high impedance state when the battery assembly is fully charged to light up the second color light-emitting diode D4; solves the problem that the green indicator light of current electronic devices is difficult to accurately indicate whether the battery assembly is fully charged; achieves the effect of accurately prompting the charging status of the battery assembly.

[0130] Optionally, please refer to Figure 1-3As shown, in order to prevent the charging voltage provided by the external power supply from being higher than the limit charging voltage of the charging status indication circuit, which may cause damage to the charging status indication circuit, the charging status indication circuit also includes an overvoltage protection chip U7 and a connector J2, wherein the first power receiving terminal 14 of the overvoltage protection chip U7 is connected to the power output terminal 15 of the connector J2, the status indication terminal 16 of the overvoltage protection chip U7 is electrically connected to the enable terminal 13 of the charging chip U3, and the voltage detection terminal 18 of the overvoltage protection chip U7 is grounded through a third resistor R30, wherein: when the voltage at the voltage detection terminal 18 of the overvoltage protection chip U7 reaches the reference voltage, it indicates that the charging voltage provided by the external power supply is higher than the limit charging voltage of the charging status indication circuit, and the charging chip U3 stops working by outputting a high level through the status indication terminal 16 to the enable terminal 13 of the charging chip U3, and the status indication terminal 16 is effective at a low level; when the voltage at the voltage detection terminal 18 of the overvoltage protection chip U7 is lower than the reference voltage, the charging chip U3 is operated by outputting a low level through the status indication terminal 16.

[0131] Optionally, the state indication terminal 16 of the overvoltage protection chip U7 is grounded through a third color LED (not shown in the figure). When the voltage on the voltage detection terminal 18 of the overvoltage protection chip U7 reaches the reference voltage, the state indication terminal 16 outputs a high level to light up the third color LED, so as to prompt the user that the charging voltage of the external power supply is too large and to replace the external power supply that provides power to the charging state indication circuit.

[0132] Optionally, the first color LED D5 and / or the second color LED D4 and / or the third color LED are packaged in a lamp group, wherein the third color of the third color LED is different from the first color and the second color, for example, the third color may be red.

[0133] Please refer to Figure 1-2 , which shows a voltage output circuit 200 in the charging status indication circuit, and the voltage output circuit 200 includes a control chip U6 and a buck switch chip U2.

[0134] Specifically, the control chip U6 includes a first control signal input terminal 20 and a modulation signal output terminal 23. The first control signal input terminal 20 of the control chip U6 is connected to the first control signal output terminal 24 of the puff detection element J3. The ground terminal GND of the puff detection element J3 is grounded, and the power receiving terminal VDD of the puff detection element J3 receives the system power supply voltage VCC_BAT. The puff detection element J3 can be a detection element such as a microphone, an airflow sensor, an air pressure sensor, etc. that can be used to detect whether the user is puffing.

[0135] Specifically, the step-down switch chip U2 includes a first path terminal 26, a first control terminal 27, and a second path terminal 28. The first path terminal 26 of the step-down switch chip U2 receives the system power supply voltage VCC_BAT, and the first control terminal 27 of the step-down switch chip U2 is connected to the modulation signal output terminal 23 of the control chip U6.

[0136] In one embodiment, the control chip U6 can be, but is not limited to, an integrated chip of model N76E003-TSSOP14. When the control chip U6 is an integrated chip of N76E003-TSSOP14, the first control signal input terminal 20 is the AIN5 / STADC / IC3 / PWM3 / P0.4 pin, the modulation signal output terminal 23 is the PWM1 / FB / SDA / P1.4 pin, and the second control signal input terminal is AIN6 / IC5 / PWN5 / P0.3.

[0137] In one embodiment, the step-down switch chip U2 can be, but is not limited to, an integrated chip of a PMOS (positive channel Metal Oxide Semiconductor) tube of model DTQ3205. When the step-down switch chip U2 is a PMOS tube of model DTQ3205, the first path terminal 26 of the step-down switch chip U2 is the source electrode, the second path terminal 28 is the drain electrode, and the first control terminal 27 is the gate electrode. In other embodiments, the step-down switch chip U2 can also be an integrated chip of other models or other types, such as AOS7423, and this embodiment does not make a limitation in this regard.

[0138] Specifically, when the suction detection element J3 detects a suction signal, it outputs an effective level (set by the system developer, which can be a high level or a low level) through the first control signal output terminal 24; enabling the control chip U6 to control its modulation signal output terminal 23 to output a pulse modulation signal to the first control terminal 27 of the step-down switch chip U2 according to the received effective level, so that when the first control terminal 27 of the step-down switch chip U2 receives a pulse width modulation signal of an effective level (for example, the effective level of the PMOS tube is a low level), it controls the first path terminal 26 and the second path terminal 28 to conduct, and further enables the second path terminal 28 to output a driving voltage VOUT whose voltage value is less than the system power supply voltage VCC_BAT.

[0139] When the above charging state indication circuit is applied to an electronic cigarette, the electronic cigarette only provides a microphone for the user to perform a lighting operation. Optionally, the electronic cigarette can also provide a touch panel for the user to perform a lighting operation. The specific implementation can be: the control chip U6 further includes a second control signal input terminal (not shown in the figure).

[0140] Please refer to Figure 1-4, the second control signal input terminal of the control chip U6 is connected to the second control signal output terminal 37 of the touch sensing chip U8. The touch input pin 25 of the touch sensing chip U8 is connected to a touchpad (not shown in the figure). The touch input pin 25 of the touch sensing chip U8 is also grounded through a filter capacitor C6. The power input terminal 33 of the touch sensing chip U8 receives the system supply voltage VCC_BAT and is grounded through a filter capacitor C7.

[0141] When the touch input pin 25 of the touch sensing chip U8 detects a touch signal, it outputs a valid level (set by the system developer, which can be a high level or a low level) to the control chip U6 through the second control signal output terminal 37. So that the control chip U6 controls its modulation signal output terminal 23 to output a pulse modulation signal to the first control terminal 27 of the buck switch chip U2 according to the received valid level. Thus, when the first control terminal 27 of the buck switch chip U2 receives a pulse width modulation signal with a valid level (for example, the valid level of the PMOS transistor is a low level), it controls the first path terminal 26 and the second path terminal 28 to conduct, and further enables the second path terminal 28 to output a driving voltage VOUT whose voltage value is less than the system supply voltage VCC_BAT.

[0142] Optionally, the reset signal input terminal of the control chip U6 is electrically connected to a reset button. When the control chip U6 is an N76E003-TSSOP14 integrated chip, the reset signal input terminal of the control chip U6 can be the P0.7 / RXDAIN2 pin.

[0143] In one of the embodiments, please refer to Figure 1-2 , the first control signal input terminal 20 of the control chip U6 is electrically connected to the first control signal output terminal 24 of the suction detection element J3 through a first current limiting resistor R11. The fourth power receiving terminal VDD of the suction detection element J3 receives the system supply voltage VCC_BAT. The first control signal output terminal 24 of the suction detection element J3 is grounded through a fourth current limiting resistor R8.

[0144] In one of the embodiments, the second control signal input terminal of the control chip U6 is connected to the second control signal output terminal 37 of the touch sensing chip U8 through a second current limiting resistor (not shown in the figure).

[0145] In one of the embodiments, the first path terminal 26 of the buck switch chip U2 is connected to the modulation signal output terminal 23 of the control chip U6 through a third current limiting resistor R10. The first path terminal 26 is also grounded through a filter capacitor C3.

[0146] In one of the embodiments, the control chip U6 further includes a fifth power receiving terminal 32 and a ground terminal. The fifth power receiving terminal 32 of the control chip U6 is grounded through a filtering capacitor C2 and receives the system power supply voltage VCC_BAT through a fifth current limiting resistor R14. Optionally, the fifth power receiving terminal 32 and the ground terminal of the control chip U6 may be, but are not limited to, the VDD pin and the GND pin of the N76E003-TSSOP14 integrated chip respectively.

[0147] In one of the embodiments, the second path terminal 28 of the buck switch chip U2 is connected to a heating wire (not shown in the figure) to output a driving voltage VOUT to drive the heating wire to generate heat, so as to realize the atomization function.

[0148] Optionally, the voltage output circuit provided in the present application includes the above-mentioned suction detection element J3 and / or the touch sensing chip U8.

[0149] In addition, in this embodiment, current limiting protection can be carried out by using the first current limiting resistor R11, the second current limiting resistor, and the third current limiting resistor R10 to prevent circuit damage and enhance the stability of the voltage output circuit 200.

[0150] Optionally, the control chip U6 further includes a second enable signal output terminal 34, a first current receiving terminal 35, and a second current receiving terminal 36. The voltage output circuit further includes a resistance value detection circuit 210. The second enable signal output terminal 34 of the control chip U6 is connected to the resistance value detection circuit 210.

[0151] In one of the embodiments, the second enable signal output terminal 34, the first current receiving terminal 35, and the second current receiving terminal 36 may be, but are not limited to, the P1.5 / PWM5 / IC7 / SS pin, the AIN7IC1 / PWM1 / P1.1 pin, and the P3.0 / INT0 / OSCIN / AIN1 pin of the N76E003-TSSOP14 integrated chip respectively.

[0152] Among them, the resistance value detection circuit 210 includes a sixth current limiting resistor R23, a seventh current limiting resistor R22, a first detection resistor R18, a second detection resistor R21, a third detection resistor R20, a filtering capacitor C25, a filtering capacitor C24, and a second switching element Q5.

[0153] The fifth path terminal 38 of the second switching element Q5 receives the system power supply voltage VCC_BAT and is connected to the second enable signal output terminal 34 of the control chip U6 through the sixth current limiting resistor R23; the third control terminal 40 of the second switching element Q5 is connected to the second enable signal output terminal 34 of the control chip U6 through the seventh current limiting resistor R22, and the sixth path terminal 39 of the second switching element Q5 is connected to the second path terminal 28 of the buck switch chip U2 through the first detection resistor R18.

[0154] One end of the second detection resistor R21 is grounded through a filtering capacitor C25 and is connected to the first current receiving terminal 35 of the control chip U6. The other end of the second detection resistor R21 is connected to the second path terminal 28 of the buck switch chip U2. One end of the third detection resistor R20 is grounded through a filtering capacitor C24 and is connected to the second current receiving terminal 36 of the control chip U6. The other end of the third detection resistor R20 is connected to the sixth path terminal 39 of the second switching element Q5.

[0155] In one embodiment, the second switching element Q5 may be a PNP type triode. The fifth path terminal 38 of the second switching element Q5 is the emitter, the third control terminal 40 of the second switching element Q5 is the base, and the sixth path terminal 39 of the second switching element Q5 is the collector. In other embodiments, the second switching element Q5 may also be other types of transistors (such as PMOS transistors), etc.

[0156] The following takes the second switching element Q5 as a PNP type triode as an example for illustration. Specifically, when neither the first control signal input terminal 20 nor the second control signal input terminal receives a valid level and an atomizer (or heating wire) is installed in the electronic cigarette, the first enable signal output terminal of the control chip U6 outputs a low level signal, so that the second switching element Q5 is turned on, and the first current receiving terminal 35 and the second current receiving terminal 36 of the control chip U6 respectively receive the currents flowing through the second detection resistor R21 and the third detection resistor R20, and obtain the resistance value of the heating wire according to the current difference received by the first current receiving terminal 35 and the second current receiving terminal 36.

[0157] The voltage output circuit 200 of this embodiment includes a resistance value detection circuit 210. Therefore, the resistance value of the heating wire can be obtained according to the current difference output by the resistance value detection circuit 210, so that the duty cycle of the output pulse width modulation signal can be adjusted according to the resistance value of the heating wire, and thus the voltage value of the driving voltage VOUT output to the heating wire can be adjusted, further enhancing the flexibility.

[0158] In an example of any of the above embodiments, the charging state indication circuit further includes a motor. Please refer to Figure 1-5 , Figure 1-5 which is a schematic diagram of the connection of a motor provided by an embodiment of the present invention. The first enable signal output terminal (not shown in the figure) of the control chip U6 is electrically connected to the second control terminal 30 of the first switching element Q11. The third path terminal 19 of the first switching element Q11 is grounded. The fourth path terminal 29 of the first switching element Q11 is electrically connected to the negative electrode MA- of the motor. The positive electrode MA+ of the motor receives the system power supply voltage VCC_BAT.

[0159] Wherein, when the second control signal input terminal receives a valid level, the first switching element Q11 controls the third path terminal 19 and the fourth path terminal 29 to conduct according to the enable signal provided by the first enable signal output terminal of the control chip U6, so that the motor is powered on to work, prompting the user that the touch on the touchpad is valid and simulating the feel of a physical button.

[0160] Optionally, in the voltage output circuit 200 provided in any of the above embodiments, the second control signal input terminal is electrically connected to the button; so that the user can light a cigarette by any one of operating the button, operating the touchpad, and performing suction.

[0161] In an example of any of the above embodiments, please refer to Figure 1-6 , the charging state indication circuit further includes a battery protection chip U1, and the battery protection chip U1 includes a second power receiving terminal 41, a ground terminal 42, and a charging detection terminal 43. Optionally, the battery protection chip U1 further includes a heat sink terminal (not shown in the figure).

[0162] Specifically, the second power receiving terminal 41 of the battery protection chip U1 is connected to the positive electrode BAT+ of the battery assembly (for example, the rechargeable battery BAT shown in the figure), the ground terminal 42 of the battery protection chip U1 is connected to the negative electrode BAT− of the battery assembly, the heat sink terminal of the battery protection chip U1 is connected to the ground terminal 42 of the battery protection chip U1, and the charging detection terminal 43 of the battery protection chip U1 is grounded. The heat sink of the battery protection chip U1 is used to reduce the temperature of the battery protection chip U1 and prevent it from being burned out by high temperature. The heat sink terminal of the battery protection chip U1 is connected to the ground terminal 42 of the battery protection chip U1, increasing the grounding area of the battery protection chip U1, thereby improving the overcurrent capacity of the voltage output circuit 200.

[0163] Specifically, the battery protection chip U1 in this embodiment can be used to prevent overcharging or over-discharging of the battery assembly. The ground terminal 42 of the battery protection chip U1 is connected to the negative electrode BAT− of the battery assembly, and the charging detection terminal 43 of the battery protection chip U1 is grounded. Then the negative electrode BAT− of the battery assembly is not directly grounded. The battery protection chip U1 is arranged between the negative electrode BAT− of the battery assembly and the system ground. When the battery assembly needs to be charged or discharged, the negative electrode BAT− of the battery assembly needs to be connected to the ground through the conducting battery protection chip U1. Therefore, the battery protection chip U1 in the voltage output circuit 200 can detect the current or voltage on its own pins or components to determine whether the circuit state is in an overcharging or over-discharging state, and then disconnect the connection between the negative electrode BAT− of the battery assembly and the system ground in the overcharging or over-discharging state, thereby protecting the battery assembly.

[0164] In one embodiment, the second power receiving terminal 41 of the battery protection chip U1 is connected to the first end of the filter capacitor C4, and the second end of the filter capacitor C4 is connected to the negative electrode BAT− of the battery assembly. The filter capacitor C4 can be used to filter the system power supply voltage VCC_BAT output from the positive electrode BAT+ of the battery assembly.

[0165] In one embodiment, the model of the battery protection chip U1 is XB6006A2. Please refer to Figure 1-6 , the second power receiving terminal 41 of the battery protection chip U1 is the VDD terminal, the ground terminal 42 is the GND terminal, and the charging detection terminal 43 is the VM terminal.

[0166] The electronic cigarette of the present invention can automatically disconnect the connection between the battery assembly and the charging chip U3 or the discharge circuit through the battery protection chip U1, preventing overcharging or over-discharging of the battery assembly, thereby protecting the battery assembly and the electronic cigarette.

[0167] The embodiment of the present invention also provides an electronic device, which includes the charging state indication circuit involved in any of the above embodiments. The electronic device can be any device equipped with a rechargeable battery assembly, such as an electronic cigarette, a tablet computer, a mobile phone, etc.

[0168] Embodiment Two

[0169] Please refer to Figure 2, Figure 3 , Figure 4 and Figure 19 , Embodiment Two of the present invention provides an electronic cigarette, which includes an atomizer cartridge 50 and a battery assembly 60 electrically connected to the atomizer cartridge 50. The atomizer cartridge 50 includes an atomizer cartridge housing 51 having a liquid storage cavity 510, a seal 52 for sealing the liquid storage cavity 510, a mouthpiece 53 installed at one end of the atomizer cartridge housing 51, and an atomization assembly 54 installed at the other end of the atomizer cartridge housing 51 opposite to the mouthpiece 53. During use, the atomization assembly 54 heats the e-liquid stored in the liquid storage cavity 510 under the electric drive of the battery assembly 60, causing the e-liquid to generate smoke, and the smoke is inhaled by the user.

[0170] Please refer to Figure 5 , Figure 6 and Figure 7, the cartridge housing 51 is generally a hollow cylindrical structure with an opening at the lower end. Inside the cavity of the cartridge housing 51, a relatively arranged first partition 511 and a second partition 512 are installed. Both the first partition 511 and the second partition 512 are arranged along the axial direction of the cartridge housing 51, and the upper ends of both the first partition 511 and the second partition 512 are connected to the upper end of the cartridge housing 51. Among them, the liquid storage cavity 510 is formed by the cavity surrounded by the first partition 511, the second partition 512, and the cartridge housing 51. The space surrounded by the first partition 511 and the cartridge housing 51 forms the air intake cavity 513, and the space surrounded by the second partition 512 and the cartridge housing 51 forms the induction cavity 514. The air intake cavity 513 and the induction cavity 514 are respectively separated from the liquid storage cavity 510 by the first partition 511 and the second partition 512, and are respectively located on opposite sides of the liquid storage cavity 510. In addition, the cartridge housing 51 is made of a transparent or semi-transparent material, enabling the user to observe the amount of e-liquid in the liquid storage cavity 510 through the cartridge housing 51, facilitating the user to perform the liquid injection operation in a timely manner or facilitating the user to perform the operation of replacing the cartridge 50 in a timely manner. In this embodiment, the material of the cartridge housing 51 is transparent or semi-transparent plastic.

[0171] A receiving groove 515 is formed by partial downward depression on the upper end surface of the cartridge housing 51. A smoke outlet notch 5151, a liquid injection hole 5152, and an induction port 5153 are respectively formed on the bottom wall of the receiving groove 515. Among them, the smoke outlet notch 5151 is formed at the center of the bottom wall of the receiving groove 515. There are two liquid injection holes 5152, and the two liquid injection holes 5152 are symmetrically arranged on both sides of the smoke outlet notch 5151 with respect to the smoke outlet notch 5151, and the liquid injection hole 5152 is communicated with the liquid storage cavity 510. It can be understood that the two liquid injection holes 5152 are symmetrically distributed with respect to the axis of the cartridge 50. An induction tube 516 is installed along the axial direction of the cartridge housing 51 in the induction cavity 514. The upper end of the induction tube 516 is connected to the upper end of the cartridge housing 51, and the lower end surface of the induction tube 516 is flush with the lower end surface of the second partition 512. An induction channel 5161 is axially formed in the induction tube 516 along the axial direction of the cartridge housing 51. The lower end of the induction channel 5161 penetrates the lower end surface of the induction tube 516, and the upper end of the induction channel 5161 is aligned and communicated with the induction port 5153. In this embodiment, the cartridge housing 51, the first partition 511, the second partition 512, and the induction tube 516 are integrally formed structures for convenient production. In order to facilitate the integral molding of the induction tube 516 with the cartridge housing 51, the first partition 511, and the second partition 512, a reinforcing rib (not shown in the figure) is provided between the induction tube 516 and the cartridge housing 51. It can be understood that in other embodiments not shown, the induction tube 516 can be omitted, and the induction cavity 514 is used as the induction channel 5161.

[0172] An air inlet hole 517 is formed on the surface of the cartridge housing 51 near the first partition 511, that is, an air inlet hole 517 is formed on the surface of the cartridge housing 51 opposite to the first partition 511, and the air inlet hole 517 is communicated with the outside atmosphere and the air inlet chamber 513.

[0173] Please refer to Figure 8 、 Figure 9 、 Figure 10 and Figure 19 ,The seal 52 is generally in a block structure, and the seal 52 is fitted with the receiving groove 515 and installed in the receiving groove 515. A limiting rib 521 is protruded outward on the outer peripheral surface of the seal 52. When the seal 52 is installed in place with the receiving groove 515, the limiting rib 521 can abut against the upper end surface of the cartridge housing 10, so as to limit the seal 52. At the same time, the user can judge whether the seal 52 is installed in place by whether the limiting rib 521 abuts against the upper end surface of the cartridge housing 10, thus facilitating the installation of the seal 52. The part of the seal 52 below the limiting rib 521 is received in the receiving groove 515.

[0174] A smoke outlet hole 522 is formed on the lower end surface of the seal 52, and the smoke outlet hole 522 corresponds to the smoke outlet notch 5151. A sealing portion 523 and a sealing protrusion 524 are also protruded on the lower end surface of the seal 52. There are two sealing portions 523, and one sealing portion 523 is correspondingly fitted with one liquid injection hole 5152. The sealing protrusion 524 is correspondingly fitted with the induction port 5153, and an induction hole 5241 is formed on the sealing protrusion 524. One end of the induction hole 5241 penetrates the lower end surface of the sealing protrusion 524, and the other end of the induction hole 5241 penetrates the upper end surface of the seal 52. When the seal 52 is installed in place with the receiving groove 515, the smoke outlet hole 522 is aligned and communicated with the smoke outlet notch 5151, and the sealing portion 523 is inserted into the corresponding liquid injection hole 5152 to seal the liquid injection hole 5152. At this time, the smoke liquid in the liquid storage chamber 510 is sealed. At the same time, the sealing protrusion 524 is inserted into the induction port 5153, and the induction hole 5241 is communicated with the induction channel 5161. The setting method of inserting the sealing protrusion 524 into the induction port 5153 can prevent the air flow in the induction channel 5161 from leaking through the gap between the sealing protrusion 524 and the induction port 5153. In addition, both the sealing portion 523 and the sealing protrusion 524 are in the form of protrusions, which play a role in guiding and positioning the assembly of the seal 52 and the receiving groove 515.

[0175] The upper end face portion of the seal 52 is recessed downward to form an installation groove 525, and the installation groove 525 communicates with the smoke outlet hole 522. Specifically, the smoke outlet hole 522 penetrates through the bottom wall of the installation groove 525. Two liquid injection grooves 526 are formed on both sides of the installation groove 525 on the upper end face of the seal 52, and one liquid injection groove 526 corresponds to one sealing portion 523. Air guide grooves 527 are formed on the upper end face of the seal 52 at the portions between each liquid injection groove 526 and the installation groove 525. One side of the air guide groove 527 communicates with the installation groove 525, and the other side of the air guide groove 527 communicates with the corresponding liquid injection groove 526. In addition, an induction groove 528 is formed on the upper end face of the seal 52 at the portion between the induction hole 5241 and the liquid injection groove 526 adjacent to the induction hole 5241. One side of the induction groove 528 communicates with the liquid injection groove 526, and the other side of the induction groove 528 communicates with the induction hole 5241.

[0176] In addition, a liquid absorption member 5251 is installed in the installation groove 525. The liquid absorption member 5251 is matched with the installation groove 525. A through hole 5252 is formed on the liquid absorption member 5251. The lower end of the through hole 5252 penetrates through the lower end face of the liquid absorption member 5251 and then communicates with the smoke outlet hole 522, and the upper end of the through hole 5252 penetrates through the upper end face of the liquid absorption member 5251. The liquid absorption member 5251 has the ability to absorb smoke liquid and is used to absorb larger particle smoke oil in the smoke and the condensate after the smoke condenses. In the present invention, the liquid absorption member 5251 is a sponge. It can be understood that the liquid absorption member 5251 can also be a fiber rope, cotton, porous ceramic, porous graphite, foam metal, etc., which is not limited herein.

[0177] Please refer to Figure 11 and Figure 19, the mouthpiece 53 is installed at the upper end of the cartridge housing 51. In this embodiment, the mouthpiece 53 is sleeved outside the upper end of the cartridge housing 51, and when the mouthpiece 53 is installed in place, the mouthpiece 53 is non-removable, preventing children from arbitrarily disassembling the mouthpiece 53 and then disassembling the seal 52, thereby coming into contact with the e-liquid in the liquid storage chamber 510. Specifically, the mouthpiece 53 is generally in a hollow cylindrical structure with an opening at the lower end. A first card slot 518 is formed on the outer wall of the cartridge housing 51, and a first buckle 531 that cooperates with the first card slot 518 protrudes from the inner wall of the mouthpiece 53. When the mouthpiece 53 and the cartridge housing 51 are connected in place, the first card slot 518 and the first buckle 531 are engaged with each other, thereby realizing a stable connection relationship between the mouthpiece 53 and the cartridge housing 51. When the mouthpiece 53 and the cartridge housing 51 are connected in place, both the first card slot 518 and the first buckle 531 are blocked by the outer wall of the mouthpiece 53, making the overall appearance of the cartridge 50 more beautiful. In this embodiment, there are two first card slots 518, and the two first card slots 518 are arranged on opposite sides of the cartridge housing 51. Correspondingly, there are two first buckles 531, so that the connection between the mouthpiece 53 and the cartridge housing 51 can be more stable and reliable. It can be understood that in other embodiments not shown, the first buckle 531 is arranged on the outer wall of the cartridge housing 51, and the first card slot 518 is correspondingly formed on the inner wall of the mouthpiece 53. It can be understood that in other embodiments not shown, the mouthpiece 53 and the cartridge housing 51 can also be detachably connected by means of threaded connection, plug-in connection, magnetic connection, etc.

[0178] Two smoke outlets 532 are formed on the upper end surface of the mouthpiece 53, and the smoke outlets 532 communicate with both the external atmosphere and the inner cavity of the mouthpiece 53. In this embodiment, there are two smoke outlets 532, and they are symmetrically arranged on both sides of the smoke outlet hole 522. One smoke outlet 532 corresponds to one liquid injection groove 526, so that the smoke outlet 532 is staggered from the smoke outlet hole 522, effectively preventing the situation of choking due to the direct and rapid extraction of smoke.

[0179] Two oppositely arranged protrusions 533 protrude from the inner surface of the top wall of the mouthpiece 53, and an opening 534 is formed between the two protrusions 533. The opening 534 communicates with the through hole 5252. When the mouthpiece 53 and the cartridge housing 51 are installed in place, the lower end of the protrusion 533 abuts against the upper end of the liquid absorption member 5251, thereby fixing the liquid absorption member 5251. At the same time, the opening 534 communicates with the air guiding groove 527, so that the smoke outlet hole 522 is communicated with the smoke outlet 532 through the through hole 5252, the gap between the protrusions 533, the opening 534, the air guiding groove 527 and the liquid injection groove 526 in sequence. And the sensing hole 5241 is communicated with the smoke outlet 532 through the sensing groove 528 and the liquid injection groove 526 in sequence.

[0180] In addition, an air inlet 535 is provided on the side wall of the mouthpiece 53 corresponding to the air inlet hole 517. When the mouthpiece 53 is properly installed with the cartridge housing 51, the air inlet 535 is in communication with the air inlet hole 517.

[0181] Please refer to Figure 12 , Figure 13 , Figure 18 and Figure 19 , the atomization assembly 54 includes a base 541 installed inside the lower end of the cartridge housing 51, a sealing plug 542 installed on the upper end of the base 541, a conductive sheet 543 installed on the lower end of the base 541, an air pipe 544 installed on the sealing plug 542, an atomization member 545 received inside the lower end of the air pipe 544, and a first electrode 546 and a second electrode 547 extending through the base 541 into the sealing plug 542.

[0182] Please refer to Figure 14 and Figure 15 , the base 541 is received inside the lower end of the cartridge housing 51. The base 541 is generally a hollow cylindrical structure with an opening at the upper end. A second buckle 5411 is convexly provided on the outer wall of the base 541, and a second slot 519 for cooperating with the second buckle 5411 is provided on the side wall of the cartridge housing 51. When the base 541 is properly installed with the cartridge housing 51, the second buckle 5411 and the second slot 519 are engaged with each other, thereby realizing a stable connection relationship between the base 541 and the cartridge housing 51. After the second buckle 5411 and the second slot 519 are engaged, they cannot be disassembled again, which can prevent children from arbitrarily disassembling the base 541 and contacting the e-liquid in the liquid storage cavity 510. It can be understood that in other embodiments not shown, the second buckle 5411 is provided on the side wall of the cartridge housing 51, and the second slot 519 is provided on the outer wall of the base 541. In this embodiment, a holding edge 5412 is convexly provided on the outer peripheral surface of the lower end of the base 541 along the radial direction of the base 541, and the upper end surface of the holding edge 5412 abuts against the lower end surface of the cartridge housing 51, thereby playing a limiting role on the base 541. It can be understood that the atomization assembly 54 realizes the connection relationship with the cartridge housing 51 through the base 541.

[0183] A placement groove 5413 is formed by partial depression of the lower end surface of the base 541, and the conductive sheet 543 is placed in the placement groove 5413. On the inner bottom wall of the base 541, a convex block (not shown in the figure), a first connection column (not shown in the figure), and a second connection column (not shown in the figure) are convexly provided inside the cavity of the base 541. An induction notch 5414 penetrating through both ends is provided on the convex block along the axial direction of the base 541, a first electrode port 5415 penetrating through both ends is provided on the first connection column along the axial direction of the base 541, and a second electrode port 5416 penetrating through both ends is provided on the second connection column along the axial direction of the base 541. The base 541 is made of an insulating material. In this embodiment, the material of the base 541 is plastic.

[0184] In addition, an air inlet groove 5417 is formed in the side wall of the base 541.

[0185] Please refer to Figure 16 , Figure 17 , Figure 18 and Figure 19 , the sealing plug 542 is installed at the upper end of the base 541, so that an air vent gap 5420 is formed between the lower end surface of the sealing plug 542 and the upper end surface of the base 541, and the air inlet groove 5417 is communicated with both the air inlet cavity 513 and the air vent gap 5420. Specifically, the sealing plug 542 includes a sealing plate 5421 and a sealing column 5422 protruding from the upper end surface of the sealing plate 5421. The sealing plate 5421 and the sealing column 542 are integrally formed. One end of the sealing plate 5421 is clamped between the lower end surface of the first partition plate 511 and the upper end surface of the base 541, and the other end of the sealing plate 5421 is clamped between the lower end surface of the induction tube 516 and the upper end surface of the base 541, thereby fixing the sealing plug 542. The shape of the sealing column 5422 matches that of the liquid storage cavity 510, and is hermetically installed inside the lower end of the liquid storage cavity 510 to seal the e-liquid. In this embodiment, the material of the sealing plug 542 is silica gel. It can be understood that in other embodiments not shown, the material of the sealing plug 542 can also be other sealing materials such as rubber. In addition, positioning ribs 5111 are arranged along the axial direction of the cartridge housing 51 on the inner wall of the cartridge housing 51. When the sealing plug 542 is installed in place, the lower end surface of the positioning rib 5111 abuts against the upper end surface of the sealing column 5422, which limits the installation depth of the sealing plug 542.

[0186] In this embodiment, sealing ribs 5427 protrude radially outward along the outer peripheral surface of the sealing column 5422. There are multiple sealing ribs 5427, and the multiple sealing ribs 5427 are sequentially spaced apart along the axial direction of the sealing column 5422. By providing the sealing ribs 5427, multi-level sealing of the sealing column 5422 for the liquid storage cavity 510 is achieved, thereby enhancing the sealing performance and further preventing e-liquid leakage.

[0187] At the center of the upper end face of the sealing column 5422, a socket (not shown in the figure) is axially opened along the axis of the sealing plug 542. An air intake notch 5423 communicating with the socket is opened at the bottom of the sealing plate 5421, and the air intake notch 5423 communicates with the ventilation gap 5420. First and second electrode holes 5424 and 5425 are also opened at the bottom of the sealing plate 5421. The first electrode hole 5424 corresponds to the first electrode port 5415, and the second electrode hole 5425 corresponds to the second electrode port 5416. The upper end of the first electrode 546 passes through the first electrode port 5415 and then is inserted into the first electrode hole 5424. The upper end of the second electrode 547 passes through the second electrode port 5416 and then is inserted into the second electrode hole 5425. And the conductive sheet 543 is sleeved outside the second electrode 547 and is electrically connected to the second electrode 547. The first electrode 546 and the second electrode 547 are insulated from each other by the base 541. The conductive sheet 543 is a conductor, and the material of the conductive sheet 543 can be a metal, such as iron, copper, nickel, etc., and there is no limitation here. In this embodiment, a convex portion protrudes downward along the axis of the sealing plate 5421 on the lower end face of the sealing plate 5421. The first electrode hole 5424 and the second electrode hole 5425 are both arranged on the lower end face of the convex portion, and both axially penetrate through the sealing plate 5421 upward along the axis of the sealing plug 542 and communicate with the socket. The setting of the convex portion increases the depth of the first electrode hole 5424 and the second electrode hole 5425, thereby increasing the installation depth of the first electrode 546 and the second electrode 547, and further making the installation of the first electrode 546 and the second electrode 547 more stable. In addition, the air intake notch 5423 is opened on the side wall of the convex portion. In this way, a certain suction resistance is increased, preventing the intake air flow from being quickly extracted and carrying less smoke, so that the user has a better experience when sucking.

[0188] In addition, a first communication column (not shown in the figure) extends downward along the axis of the sealing member 542 on the lower end face of the sealing plate 5421. The first communication column corresponds to the induction notch 5414. An induction through hole 5426 is axially opened on the first communication column along the axis of the sealing member 542. The lower end of the induction through hole 5426 penetrates through the lower end face of the first connection column, and the upper end of the induction through hole 5426 penetrates through the upper end face of the sealing plate 5421. When the sealing plug 542, the base 541 and the cartridge housing 51 are installed in place, a part of the first connection column is inserted into the induction notch 5414, and the induction channel 5161 is aligned and communicated with the induction through hole 5426, so that the induction channel 5161 is communicated with the induction notch 5414. The first connection column seals the induction notch 5414 and can prevent the air flow in the induction notch 5414 from leaking. At the same time, the first connection column plays an isolation role, used to separate the ventilation gap 5420 and the induction notch 5414 to prevent the air flow in the ventilation gap 5420 and the air flow in the induction notch 5414 from interfering with each other.

[0189] Please refer to again Figure 12 , Figure 18 and Figure 19 , the air vent pipe 544 is received in the liquid storage cavity 510, and the lower end of the air vent pipe 544 is connected to the sealing plug 542, and the upper end of the air vent pipe 544 is connected to the upper end of the cartridge housing 51. Specifically, the air vent pipe 544 is generally a tubular structure with both ends penetrating, and the air vent pipe 544 includes an air vent section 5441 and a socket section 5442 connected to each other. The inner cavity of the air vent section 5441 forms a smoke outlet channel 5443, and the inner cavity of the socket section 5442 forms a receiving space (not shown in the figure). Moreover, the aperture of the air vent section 5441 is smaller than that of the socket section 5442. On the inner wall of the upper end surface of the cartridge housing 51, a connecting pipe (not shown in the figure) is formed and extends downward along the axis of the cartridge housing 51. The connecting pipe corresponds to the smoke outlet notch 5151. One end of the air vent section 5441 away from the socket section 5442 is connected to the connecting pipe, and the smoke outlet channel 5443 is communicated with the smoke outlet notch 5151. One end of the socket section 5442 away from the air vent section is inserted into the socket on the sealing plug 542, and the receiving space is communicated with the socket. In addition, a liquid inlet 5445 is formed on the side wall of the socket section 5442, and the liquid inlet 5445 is communicated with both the liquid storage cavity 510 and the receiving space. In this embodiment, the air vent section 5441 and the socket section 5442 are integrally formed. It can be understood that in other embodiments not shown, the air vent section 5441 and the socket section 5442 are two independent components, and when in use, they can be connected together.

[0190] The atomizing member 545 is received in the receiving space. The atomizing member 545 includes a heating member 5451 and a liquid guiding member 5452 that are in contact with each other. After the heating member 5451 is powered on, it can generate heat, and the liquid guiding member 5452 has the ability to absorb the smoke liquid. The liquid guiding member 5452 is a hollow structure with both ends penetrating. The inner cavity of the liquid guiding member 5452 constitutes the atomizing cavity 5444. The liquid guiding member 5452 is made of a porous material, and the porous material has air permeability, which can allow air to be discharged. When the liquid guiding member 5452 is in an adsorption saturation state, it will no longer further adsorb the smoke liquid, thereby sealing the smoke liquid in the liquid storage cavity 510. When the heating member 5451 heats the smoke liquid on the liquid guiding member 5452, the liquid guiding member 5452 can adsorb the smoke liquid in the liquid storage cavity 510 again. In this embodiment, the liquid guiding member 5452 is wrapped around the outside of the heating member 5451 and is correspondingly attached to the inner wall of the socket section 5442 at the liquid inlet 5445, so that the smoke liquid in the liquid storage cavity 510 is adsorbed by the liquid absorbing member 5452 through the liquid inlet 5445 and into the atomizing cavity 5444. The heating member 5451 has two pins. The upper ends of the first electrode 546 and the second electrode 547 are both open. One of the pins is inserted into the opening of the first electrode 546, and then a clamping force is applied to the first electrode 546, causing the opening of the first electrode 546 to contract inward and clamp the pin. Similarly, the other pin is inserted into the opening of the second electrode 547, and a clamping force is applied to the second electrode 547, causing the opening of the second electrode 547 to contract inward and clamp the other pin. It can be understood that in other embodiments not shown, it can also be that one of the pins is clamped between the first electrode 546 and the base 541, and the other pin is clamped between the second electrode 547 and the base 541. When in use, the first electrode 546 and the second electrode 547 are respectively connected to the positive and negative electrodes of the battery assembly 60, so that the battery assembly 60 supplies power to the heating member 5451, and the heating member 5451 heats the smoke liquid absorbed by the liquid guiding member 5452, and then the smoke liquid is converted into smoke.

[0191] In this embodiment, the heating member 5451 is a spiral heating wire, and the liquid guiding member 5452 is cotton. It can be understood that in other embodiments not shown, the heating member 5451 can also be a conductive paste, a heating tube, a heating mesh, etc., and the liquid guiding member 5452 can also be a fiber rope, a sponge, a porous ceramic, a porous graphite, a foam metal, etc. The heating member 5451 can also be arranged inside the liquid guiding member 5452, and there is no limitation here.

[0192] It should be noted that since the aperture of the ventilation section 5441 is smaller than the aperture of the socket section 5442, a step (not shown in the figure) is formed between the ventilation section 5441 and the socket section 5442. When the user installs the atomizing member 545 into the socket section 5442, when the atomizing member 545 abuts against the step, it means that the atomizing member 545 has been installed in place, which facilitates the user's operation.

[0193] Please refer to Figure 20 、 Figure 21 and Figure 22 , the battery assembly 60 includes a battery case 61, a battery bracket 62 housed in the battery case 61, a battery 63 mounted on the battery bracket 62, and a control board 64 mounted on the battery bracket 62.

[0194] The battery case 61 is generally in a hollow cylindrical structure with an opening at the upper end. The inner cavity of the battery case 61 forms a receiving cavity 611. The lower end of the cartridge housing 51 of the cartridge 50 is detachably mounted inside the upper end of the receiving cavity 611. In this embodiment, the upper end surface of the battery case 61 is recessed downward along the axis of the battery case 61 to form oppositely arranged guide grooves 612. The lower end surface of the mouthpiece 53 extends downward along the axis of the mouthpiece 53 to form guide ribs 536 that cooperate with the guide grooves 612. During the process of inserting the cartridge 50 into the receiving cavity 611, both sides of the guide ribs 536 can slide along the opposite two groove walls of the guide grooves 612, thereby guiding the installation of the cartridge 50. When the cartridge 50 is installed in place, the cartridge housing 51 is shielded by the battery case 61, and only the mouthpiece 53 is exposed. To facilitate observing the amount of e-liquid in the liquid storage cavity 510, the mouthpiece 53 is made of transparent or translucent material. Thus, the amount of e-liquid in the liquid storage cavity 510 can be observed through the mouthpiece 53 and the cartridge housing 51 in sequence. It can be understood that in other embodiments not shown, a window may also be provided on the battery case 61, and the window corresponds to the cartridge housing 51. When the cartridge 50 is installed in place, the cartridge housing 51 can be exposed through the window.

[0195] The battery holder 62 is received in the receiving cavity 611 and is located below the cartridge 50. An installation cavity (not shown in the figure) is provided on the battery holder 62, and the battery 63 is installed in the installation cavity to fix the battery 63. The first terminal 621 and the second terminal 622 are installed at the upper end of the battery holder 62. Among them, the first terminal 621 is electrically connected to one of the positive and negative electrodes of the battery 63, and the second terminal 622 is electrically connected to the other of the positive and negative electrodes of the battery 63. When the cartridge 50 and the battery assembly 60 are installed in place, the first terminal 621 contacts and is electrically connected to the first electrode 546, and the second terminal 622 contacts the conductive sheet 543, so that the second terminal 622 is electrically connected to the second electrode 547 through the conductive sheet 543. Thus, the battery assembly 60 can electrically drive the heating element 5451. In addition, a first magnetic member 623 is installed on the upper end surface of the battery holder 62 corresponding to the second electrode 547. The first magnetic member 623 can be attracted to the second electrode 547, thereby increasing the connection reliability between the cartridge 50 and the battery assembly 60. In this embodiment, the first magnetic member 623 is a magnet. By providing the conductive sheet 543, the arrangement of the first electrode 546, the second electrode 547, the first terminal 621, and the second terminal 622 is more flexible. In this embodiment, when the cartridge 50 is installed in place, the sensor 6131 is directly below the second electrode 547, and the second terminal 622 cannot pass through the sensor 6131 and be electrically connected to the battery 63. By providing the conductive sheet 543, the second terminal 622 can be arranged on the other side of the battery holder 62, thus avoiding the sensor 6131. To further increase the connection reliability between the cartridge 50 and the battery assembly 60 and make reasonable use of the space on the upper end surface of the battery holder 62, a second magnetic member (not shown in the figure) is sleeved outside the second terminal 622, and the second magnetic member is magnetically connected to the conductive sheet 543. It can be understood that in other embodiments not shown, one of the first magnetic member 623 and the second magnetic member can be omitted, or both the first magnetic member 623 and the second magnetic member can be omitted, and the electronic cigarette strengthens the connection between the cartridge 50 and the battery assembly 60 by other means, for example, the cartridge 50 and the battery assembly 60 are snap-connected.

[0196] The upper end of the battery holder 62 is further protruded with a second connecting post (not shown in the figure). The second connecting post corresponds to the induction notch 5414, and an induction through groove 624 is axially formed on the second connecting post along the battery holder 62. An induction gap 613 is left between the battery holder 62 and the battery 63, and the induction gap 613 communicates with the induction through groove 624. When the cartridge 50 is installed in place with the battery assembly 60, the second connecting post is inserted into the induction notch 5414, and the induction through groove 624 communicates with the induction through hole 5426, so that the induction gap 613 communicates with the induction channel 5161. The setting of the second connecting post can ensure that the cartridge 50 can only be inserted in a single direction, that is, the cartridge 50 can only be inserted correctly and the induction notch 5414 faces the second connecting post to be smoothly inserted into the battery assembly 60. Otherwise, the cartridge 50 will not be able to be smoothly inserted into the battery assembly 60 under the abutting action of the second connecting post. In this way, it can be ensured that when the cartridge 50 is installed in place, the induction gap 613 communicates with the induction channel 5161.

[0197] A USB socket 641 is installed on the control board 64. The control board 64 is electrically connected to the battery 63. An opening is provided on the lower end surface of the battery case 61 corresponding to the USB socket 641, so that the USB socket 641 is exposed through the opening. Users can charge the battery 63 through the USB socket 641. Since the opening is located on the lower end surface of the battery case 61, it is relatively concealed, making the electronic cigarette more beautiful. The control board 64 is provided with the charging state indication circuit described in the first embodiment, which can accurately indicate the charging state of the battery assembly 60 during charging. In addition, the USB socket 641 is in communication with both the induction gap 613 and the outside atmosphere. A sensor 6131 is installed in the induction gap 613, and the sensor 6131 is electrically connected to the control board 64. When the user sucks through the mouthpiece 53, outside air enters the induction gap 613 through the USB socket 641, then flows through the sensor 6131, and then flows out through the induction through slot 624, the induction notch 5414, the induction through hole 5426, the induction channel 5161, the induction hole 5241, the induction slot 528 and the smoke outlet 532 in sequence. Among them, the induction notch 5414, the induction through hole 5426, the induction channel 5161, the induction hole 5241 and the induction slot 528 together form the induction channel. In this embodiment, the sensor 6131 is an airflow sensor. When the airflow sensor detects an airflow, it generates a start signal and transmits it to the control board 64. After receiving the start signal, the control board 64 controls the battery 63 to supply power to the heating element 5451. It can be understood that in other embodiments not shown, the sensor 6131 can also be a pressure sensor. One side of the pressure sensor is in communication with the outside through the USB socket 641 and maintains normal pressure, while the other side generates negative pressure under the suction effect. When the pressure sensor generates a pressure difference on both sides, it generates a start signal. The pressure sensor transmits the start signal to the control board 64, and after receiving the start signal, the control board 64 can also control the battery 63 to supply power to the heating element 5451. It can be understood that in other embodiments not shown, the induction gap 613 can also be in communication with the outside atmosphere in other ways, for example, an opening is provided on the battery case. It can be understood that in other embodiments not shown, in order to prevent false triggering caused by the disturbance of the airflow, a threshold can also be set. Only when the intensity of the airflow is greater than or equal to the threshold, or only when the pressure difference between both sides is greater than or equal to the threshold, the sensor 6131 will generate a start signal.

[0198] In this embodiment, the sensor 6131 is disposed below the upper end surface of the battery holder 62. Specifically, the sensor 6131 is disposed in a sensor mounting groove (not shown in the figure) formed on the lower surface of the upper end of the battery holder 62. The sensor mounting groove communicates with the induction through groove 624. In this way, the sensor 6131 is close to and opposite to the induction through groove 624. Such a setting is beneficial for the sensor 6131 to detect the user's puffing. For the airflow sensor, since it is far from the USB socket 641, as long as the user does not puff through the mouthpiece 53, after the outside air enters the induction gap 613 through the USB socket 641 under disturbance, it is difficult to further flow through the airflow sensor through the long induction gap 613, thereby preventing the airflow sensor from generating a start signal and preventing false triggering. For the pressure sensor, the path connecting the pressure sensor and the mouthpiece 53 is shortened. In this way, it is beneficial to seal this path, thereby ensuring that the gas in this path is drawn out by the user, causing a negative pressure on the side of the pressure sensor corresponding to this path. It can be understood that the longer this path is, the more difficult it is to ensure the airtightness of this path. When the airtightness of this path is poor, it will cause interfering airflows to enter this path, making it difficult for the pressure sensor to generate a negative pressure on the side corresponding to this path.

[0199] A plurality of glue stealing openings 615 are formed in the battery case 61, which reduces the weight and saves materials. In addition, decorative plates 614 are installed on the side wall of the battery case 61 corresponding to the glue stealing openings 615. The decorative plates 614 cover the glue stealing openings 615, making the product beautiful while ensuring the consistency of the product appearance. In this embodiment, there are two decorative plates 614, which are respectively installed on the opposite side surfaces of the battery case 61.

[0200] For the electronic cigarette of the present invention, when a user sucks through the mouthpiece 53, outside air enters the atomization chamber 5444 in sequence through the air inlet 535, air holes 517, air chamber 513, air slots 5417, ventilation gaps 5420 and air inlet notches 5423. After being mixed with the generated smoke, it flows into the user's mouth in sequence through the smoke outlet passage 5443, smoke outlet notches 5151, smoke holes 522, through holes 5252, the gap between the protrusions 533, the opening 534, the air guide groove 527, the liquid injection groove 526 and the smoke outlet 532. Among them, the air inlet 535, air holes 517, air chamber 513, air slots 5417, ventilation gaps 5420 and air inlet notches 5423 together constitute an air inlet passage (not shown in the figure). Thus, it can be seen that the induction passage is isolated from both the air inlet passage and the smoke outlet passage 5443. Therefore, the smoke will not enter the induction passage, thus having no impact on the sensor 6131. In addition, since the smoke outlet passage 5443 is arranged inside the liquid storage chamber 510, part of the heat of the air flow passing through the smoke outlet passage 5443 can be transferred to the e-liquid in the liquid storage chamber 510, so that the e-liquid already has a certain temperature when entering the atomization chamber 5444, thereby improving the atomization efficiency, reducing energy consumption, and at the same time reducing the temperature of the air flow flowing out through the smoke outlet 532 to prevent scalding the user. In addition, a sealing ring 625 is clamped between the battery holder 62 and the battery case 61. The sealing ring 625 can effectively prevent air leakage between the battery holder 62 and the battery case 61, thus affecting the sensitivity of the sensor 6131. It can be understood that the sealing ring 625 is a rubber ring or a silica gel ring. In addition, the upper end surface of the battery holder 62 cooperates with the sealing ring 625 to enclose the battery holder 62, the battery 63 and the control board 64, preventing children from contacting these components and causing danger, and also preventing users from arbitrarily modifying the circuit, thus affecting the use of the electronic cigarette.

[0201] Please refer to Figure 23, When injecting liquid, the cartridge 50 is inverted, and the liquid injection needle 70 passes through the mouthpiece 53 through the smoke outlet 532 and then pierces the seal 52, so that one end of the liquid injection needle 70 extends into the liquid storage cavity 510 to inject liquid into the liquid storage cavity 510. The above process can achieve liquid injection without removing the mouthpiece 53 and the seal 52, with simple operation and convenient use. It should be noted that the inversion of the cartridge 50 means the state when the end of the electronic cigarette with the smoke outlet 532 is located below. During the liquid injection process, the air in the liquid storage cavity 510 enters the atomization cavity 5444 through the liquid inlet 5445 and the liquid guiding member 5452, and then is discharged through the air inlet channel or the smoke outlet channel 5443, or discharged simultaneously through the air inlet channel and the smoke outlet channel 5443. The reason for inverting the cartridge 50 during liquid injection is that if the cartridge 50 is placed upright, the e-liquid will flow to the part of the liquid storage cavity 510 close to the atomizing member 545 under the action of gravity. In this way, the e-liquid forms a liquid seal on the liquid inlet 5445, resulting in the gas in the liquid storage cavity 510 being unable to be discharged smoothly, and further causing the liquid storage cavity 510 to not be filled with e-liquid. If forced to discharge, the e-liquid may leak under a large pressure. In order to prevent the e-liquid from causing a liquid seal on the liquid inlet 5445, the cartridge 50 can also be placed horizontally before injecting liquid. Or, a liquid storage member made of a porous material is filled in the liquid storage cavity 510. In this way, during liquid injection, the cartridge 50 can be placed arbitrarily. Even if the cartridge 50 is placed upright, it is difficult for the e-liquid to form a liquid seal on the liquid inlet 5445. This is because under the blockage of the liquid storage member, it is difficult for the e-liquid to flow downward under the action of gravity, and the e-liquid is locked in the liquid storage member, so it will not form a liquid seal on the liquid inlet 5445. And during use, the e-liquid in the liquid storage member can be adsorbed by the atomizing member 545. It is only necessary to ensure that the gas in the liquid storage cavity 510 can be discharged through the liquid inlet 5445 during the liquid injection process. In addition, the sealing portion 523 of the seal 52 and the smoke outlet 532 are symmetrically arranged about the axis of the cartridge 50, which is convenient for material handling to achieve automatic liquid injection. Specifically, after the cartridge 50 is assembled, it is only necessary to invert the cartridge 50 through material handling equipment such as a vibrating screen and a vibrating disk, without adjusting the orientation on both sides of the cartridge 50. The liquid injection needle 70 can always be aligned with the sealing portion 523, improving the liquid injection efficiency. The seal 52 is an elastic deformable member, which can be made of a soft material with elastic deformation ability, such as a highly elastic polymer, for example, rubber or silica gel, or can be made of a self-healing material. In this way, after the liquid injection needle 70 is pulled out, the seal 52 can form a seal again, thereby closing the liquid storage cavity 510 and preventing the e-liquid from flowing out. The opening of the liquid injection groove 526 thins the thickness of the part of the seal 52 that needs to be punctured, which is beneficial to the puncture operation of the liquid injection needle 70.Understandably, in other embodiments not shown, in addition to opening the liquid injection hole 5152 at the upper end of the cartridge housing 51, the liquid injection hole 5152 can also be opened at other parts of the cartridge housing 51, for example, the side wall or the lower end of the cartridge housing 51, and the seal 52 correspondingly seals the liquid injection hole 5152. That is, the installation positions of the liquid injection hole 5152 and the seal 52 are not limited, as long as it is ensured that when injecting liquid, the e-liquid can be smoothly injected into the liquid storage cavity 510, and the air in the liquid storage cavity 510 can be smoothly discharged.

[0202] For the cartridge 50 provided in the second embodiment of the present invention, after the cartridge 50 is assembled, the liquid injection needle 70 is used to pierce the seal 52 for liquid injection. After the liquid injection is completed, the liquid injection needle 70 is pulled out, and the seal 52 automatically resumes sealing, thus facilitating the liquid injection operation for users and manufacturers, and facilitating the manufacturer to achieve automated liquid injection. The above process can be achieved without disassembling the cartridge 50, with simple operation and convenient use.

[0203] In addition, please refer to Figure 2-1 、 Figure 2-2 and Figure 2-3, From the overall perspective of the electronic cigarette, the electronic cigarette is in a long strip shape as a whole. The outer peripheral surface of the electronic cigarette includes a first surface 91 and a second surface 92 which are oppositely arranged, and a third surface 93 and a fourth surface 94 which are oppositely arranged. The first surface 91 and the second surface 92 are axisymmetric about the central axis of the electronic cigarette, and the third surface 93 and the fourth surface 94 are also axisymmetric about the central axis of the electronic cigarette. The first surface 91 and the third surface 93 are connected by a fifth surface 95, the first surface 91 and the fourth surface 94 are connected by a sixth surface 96, the second surface 92 and the third surface 93 are connected by a seventh surface 97, and the second surface 92 and the fourth surface 94 are connected by an eighth surface 98. The fifth surface 95, the sixth surface 96, the seventh surface 97, and the eighth surface 98 are all arc surfaces. The top end of the outer peripheral surface of the electronic cigarette is covered by a top surface 910 (the upper end surface of the cartridge 50), and the bottom end of the outer peripheral surface of the electronic cigarette is covered by a bottom surface 920 (the lower end surface of the battery assembly 60). The first surface 91 and the second surface 92 are wide surfaces, the width of the first surface 91 and the second surface 92 is 10 mm - 20 mm, and the distance between the first surface 91 and the second surface 92 is 5 mm - 15 mm. The design of the wide surfaces and the relatively narrow distance between the first surface 91 and the second surface 92 make it easy for users to hold. Users can directly pinch the first surface 91 and the second surface 92, so as to suck on the electronic cigarette. Understandably, some users like to hold the electronic cigarette. When the user holds the electronic cigarette, their thumb can rest on any one of the fifth surface 95, the sixth surface 96, the seventh surface 97, and the eighth surface 98. Since the fifth surface 95, the sixth surface 96, the seventh surface 97, and the eighth surface 98 are all arc surfaces, the transition between the surfaces is alleviated. Therefore, the user's thumb is more comfortable and has a better user experience. One end of each of the first surface 91 to the eighth surface 98 of the electronic cigarette gradually contracts inward near the top surface 910 to form the suction end (not marked in the figure) of the mouthpiece 53. In this way, the smooth transition and the small thickness make the user have a better experience when the suction end is placed in the user's mouth. The first surface 91 and the second surface 92 are straight surfaces, and the electronic cigarette can be placed on the table through one of the first surface 91 and the second surface 92 without rolling randomly.

[0204] The electronic cigarette provided in the second embodiment of the present invention has the same technical effects as the above-mentioned cartridge 50 because it has all the technical features of the above-mentioned cartridge 50.

[0205] Embodiment Three

[0206] Please refer to Figure 24 and Figure 25, Embodiment 3 of the present invention provides an electronic cigarette, which includes a cartridge 500 and a battery assembly (not shown in the figure) electrically connected to the cartridge 500. The cartridge 500 includes a cartridge housing 51 having a liquid storage chamber 510, a mouthpiece 53 installed at one end of the cartridge housing 51, and an atomization assembly 54 installed at the other end of the cartridge housing 51 opposite to the mouthpiece 53. When in use, the atomization assembly 54 heats the e-liquid stored in the liquid storage chamber 510 under the electric drive of the battery assembly 60, causing the e-liquid to generate smoke when heated, and the smoke is inhaled by the user. The difference between the cartridge 500 and the cartridge 50 of Embodiment 2 is that in this embodiment, the seal 52 installed at the top of the cartridge housing 10 is omitted, and at the same time, the structure of the atomization member 545 is different.

[0207] In this embodiment, only a smoke outlet notch 5151 and a sensing port 5153 are provided at the top of the cartridge housing 51. The smoke outlet notch 5151 is communicated with both the smoke outlet 532 and the smoke outlet channel 5443, and the sensing port 5153 is communicated with both the smoke outlet 532 and the sensing channel 5161.

[0208] The lower end opening of the cartridge housing 51 serves as a liquid injection hole. The sealing plug 542 forms a seal for sealing the liquid storage chamber 510, and liquid injection is carried out through the sealing plug 542. In this way, the step of opening a hole in the cartridge housing 51 can be saved, and in addition, the seal 52 is also omitted. Specifically, a communication port 548 is formed in the bottom wall of the base 541. The liquid injection needle 70 passes through the base 541 through the communication port 548 and then pierces the sealing plug 542, so that the liquid injection needle 70 extends into the liquid storage chamber 510 to inject liquid into the liquid storage chamber 510. Compared with the second embodiment, the structure is simpler. Among them, the material of the sealing plug 542 is the same as that of the seal 52 in the second embodiment, so that after the liquid injection needle 70 is pulled out, the sealing plug 542 can automatically resume its sealing function. When injecting liquid, the cartridge 500 also needs to be inverted, and the e-liquid will first fill the end of the liquid storage chamber 510 away from the atomizing member 545 under the action of gravity, and no liquid seal will be formed. It should be noted that in this embodiment, there is only one communication port 548 and it is not provided at the central axis position of the cartridge 500. Therefore, after the cartridges 500 are sorted, the communication port 548 may not be directly opposite to the liquid injection needle 70. Therefore, a magnetic member 5418 is installed at the bottom of the base 541. The magnetic member 5418 has magnetism or can be magnetically adsorbed. After the cartridge 500 is inverted, the sorting device can make the orientation of the cartridge 500 consistent through magnetic action, so that the communication port 548 on the sorted cartridge 500 is directly opposite to the liquid injection needle 70. In this embodiment, the magnetic member 5418 is a magnet. It can be understood that in other embodiments not shown, the magnetic member 5418 can be omitted, and manual sorting can be performed, or, referring to the second embodiment, two communication ports 548 symmetrically arranged about the central axis of the cartridge 500 can be provided. A liquid injection groove (not shown in the figure) is provided on the sealing plug 542. Similarly, the thickness of the part of the sealing plug 542 that needs to be punctured is reduced to facilitate the puncture of the liquid injection needle 70.

[0209] In order to prevent the communication port 548 from communicating with the ventilation gap 5420, thereby causing gas to leak from the communication port 548, a ventilation seal 5428 is installed in the communication port 548. The ventilation seal 5428 separates the ventilation gap 5420 from the communication port 548. It can be understood that the material of the ventilation seal 5428 includes but is not limited to silicone or rubber.

[0210] In this embodiment, the atomizing member 545 is a ceramic heating member. The ceramic heating member has both a liquid guiding function and a heating function, that is, the atomizing member 545 is both a liquid guiding member and a heating member. The ceramic heating member includes porous ceramics and a heating member sintered in the porous ceramics. The lower end of the atomizing member 545 is connected to the sealing plug 542, and the upper end of the atomizing member 545 is connected to the ventilation pipe 544. An atomizing cavity 5444 is axially formed in the atomizing member 545 along the axis of the atomizing member 545. During the liquid injection process of the cartridge 500, the air in the liquid storage cavity 510 enters the atomizing cavity 5444 through the atomizing member 545, and then is discharged through the intake channel or the smoke outlet channel 5443, or is discharged through the intake channel and the smoke outlet channel 5443 at the same time. After the liquid injection is completed, the atomizing member 545 can prevent the leakage of the smoke liquid. In addition, a sealing gasket 5446 is installed on the ventilation pipe 544. The lower end of the ventilation pipe 544 is hermetically inserted into the upper end of the sealing gasket 5446, and the upper end of the atomizing member 545 is hermetically inserted into the lower end of the sealing gasket 5446, so as to prevent the smoke liquid from leaking through the connection between the ventilation pipe 544 and the atomizing member 545. The material of the sealing gasket 5446 includes but is not limited to silica gel or rubber. In addition, the atomizing member 545 in this embodiment can also be applied to the second embodiment, and the atomizing member 545 in the second embodiment can also be applied to this embodiment. In addition, it should be noted that in this embodiment, since the mouthpiece 53 does not cover the intake hole 517, there is no corresponding intake port 535 opened on the mouthpiece 53. Since the intake hole 517 is arranged near the lower end of the cartridge housing 51, when the cartridge 50 is inserted into the battery assembly 60, the intake hole 517 may be covered by the battery case 61. In one embodiment, an intake port 535 is opened on the battery case 61. In another embodiment, flanges are provided on the inner wall of the battery case 61 and / or the outer wall of the cartridge housing 51, so that after the cartridge 50 is inserted into the battery assembly 60, a gap is left between the cartridge housing 51 and the battery case 61, and this gap communicates the intake hole 517 with the outside atmosphere.

[0211] The battery assembly in the third embodiment has the same structure as the battery assembly 60 in the second embodiment, and will not be described in detail here. It can be understood that in other embodiments not shown, the cartridge 500 in the third embodiment can also be connected to other power supply devices different from the battery assembly 60.

[0212] In the second embodiment, the mouthpiece 53 serves as a shielding member, and the smoke outlet 532 serves as a communication port. In this way, users cannot directly contact the seal 52, which can prevent children from arbitrarily disassembling the seal 52. Adult users can insert the liquid injection needle 70 into the seal 52 through the smoke outlet 532 for liquid injection. In the third embodiment, the base 541 serves as a shielding member. The base 541 is connected to the cartridge housing 51 and is non-removable, preventing children from contacting the sealing plug 542 and arbitrarily disassembling the sealing plug 542 to further contact the e-liquid. On the other hand, since the shielding member is fixedly connected to the cartridge housing 51 and the sealing member (the seal 52 in the second embodiment and the sealing plug 542 in the third embodiment) is located between the shielding member and the cartridge housing 51, the shielding member constitutes a part of the outer contour of the cartridges 50, 500. Therefore, the sealing member is shielded by the shielding member, preventing children from arbitrarily contacting the sealing member. Moreover, under the clamping action of the shielding member and the cartridge housing 51, the sealing member will not shake arbitrarily, preventing the liquid injection needle 70 from driving the sealing member when it is pulled out and causing liquid leakage. Using the necessary components of the cartridges 50, 500, such as the mouthpiece 51 and the base 541, as shielding members enables a single component to have multiple functions and makes the structural arrangement more reasonable.

[0213] The second embodiment can also refer to the method of the third embodiment and use the sealing plug 542 for liquid injection. In one implementation, the induction notch 5414 is used as the communication port. After the liquid injection needle 70 passes through the induction notch 5414, it pierces into the sealing plug 542, and then extends into the liquid storage cavity 510 for liquid injection. In another implementation, the position of the air inlet hole 517 is changed, and the air inlet hole 517 is opened on the base 541. At this time, both the air inlet cavity 513 and the air inlet 535 can be omitted. The air inlet holes 517 are connected to the ventilation gap 5420. The air inlet holes 517 serve as the communication port. When injecting liquid, the liquid injection needle 70 sequentially passes through the air inlet holes 517 and the ventilation gap 5420 and then pierces into the sealing plug 542, and then extends into the liquid storage cavity 510 for liquid injection.

[0214] Inspired by the ideal embodiments of the present invention described above, through the above description, relevant staff can make various changes and modifications without departing from the scope of the present invention. The technical scope of this invention is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A cartridge, characterized in that: The cartridge includes a cartridge housing having a liquid storage chamber, a sealing member for sealing the liquid storage chamber, a shielding member provided on the cartridge housing, an atomization chamber, a smoke outlet passage, and an air inlet passage. The atomization chamber is in communication with the liquid storage chamber, the smoke outlet passage, and the air inlet passage. The sealing member is located between the shielding member and the cartridge housing. The shielding member forms a part of the outer contour of the cartridge, such that the sealing member is shielded by the shielding member. A communication port is formed in the shielding member. The sealing member is an elastically deformable member. A liquid injection needle penetrates through the communication port and pierces into the sealing member, and then extends into the liquid storage chamber through the sealing member to inject e-liquid. The air in the liquid storage chamber enters the atomization chamber and is discharged through the air inlet passage and / or the smoke outlet passage. When the liquid injection needle is withdrawn, the sealing member automatically resumes sealing the liquid storage chamber. The cartridge further includes a sealing plug and a base provided on the cartridge housing. A convex block located in the cavity of the base protrudes from the inner bottom wall of the base. An induction notch that penetrates through both ends in the axial direction of the base is formed on the convex block. The sealing plug is installed at the upper end of the base. An air ventilation gap is formed between the lower end surface of the sealing plug and the upper end surface of the base. The sealing plug includes a sealing plate and a sealing post protruding from the upper end surface of the sealing plate. A socket is formed at the center of the upper end surface of the sealing post in the axial direction of the sealing plug. An air inlet notch communicating with the socket is formed at the bottom of the sealing plate. The air inlet notch is in communication with the air ventilation gap. A first communication post extending downward in the axial direction of the sealing plug is formed on the lower end surface of the sealing plate. The first communication post corresponds to the induction notch. An induction through hole is formed in the first communication post in the axial direction of the sealing plug. The lower end of the induction through hole penetrates through the lower end surface of the first communication post, and the upper end of the induction through hole penetrates through the upper end surface of the sealing plate. An induction channel separated from the liquid storage chamber is further provided in the cartridge housing along its axial direction. When the sealing plug, the base, and the cartridge housing are installed in place, a part of the first communication post is inserted into the induction notch, and the induction channel is in alignment and communication with the induction through hole, so that the induction channel is in communication with the induction notch.

2. The cartridge according to claim 1, wherein: The cartridge further includes a mouthpiece. The mouthpiece is provided at one end of the cartridge housing along the axial direction of the cartridge housing. A smoke outlet is formed in the mouthpiece. The base is provided at the other end of the cartridge housing opposite to the mouthpiece along the axial direction of the cartridge housing. The liquid storage chamber is provided in the cartridge housing along the axial direction of the cartridge housing. One of the mouthpiece and the base serves as the shielding member.

3. The cartridge according to claim 2, wherein: The cartridge further includes a liquid guiding member made of porous material. The liquid guiding member has a hollow structure with both ends penetrating therethrough. The inner cavity of the liquid guiding member forms the atomization chamber. The liquid guiding member is arranged along the axial direction of the cartridge housing. At least a part of the liquid guiding member is received in the liquid storage chamber, and the liquid guiding member is located at one end of the liquid storage chamber close to the base. The smoke outlet channel is located in the liquid storage chamber and is isolated from the liquid storage chamber.

4. The cartridge according to claim 3, characterized in that: The cartridge further includes a sealing member disposed between the mouthpiece and the cartridge housing. The mouthpiece serves as the shielding member, the sealing member serves as the sealing component, and the smoke outlet serves as the communication port.

5. The cartridge according to claim 4, characterized in that: Two liquid injection holes symmetric about the central axis of the cartridge are formed in the cartridge housing. The liquid injection holes communicate with the liquid storage chamber. Two sealing portions for sealing the liquid injection holes protrude from the lower end surface of the sealing member. Two liquid injection grooves corresponding to the two sealing portions are formed in the upper end surface of the sealing member. There are two smoke outlets, and the two smoke outlets correspond to the two liquid injection grooves one by one.

6. The cartridge according to claim 3 or 4, characterized in that: The cartridge further includes a ventilation pipe. The sealing plug seals one end of the liquid storage chamber close to the base. The sealing plug is located between the cartridge housing and the base. The ventilation pipe is received in the liquid storage chamber. One end of the ventilation pipe is matched with the liquid guiding member, and the other end of the ventilation pipe is connected to the end of the cartridge housing where the mouthpiece is provided. The smoke outlet channel is formed by the inner cavity of the ventilation pipe.

7. The cartridge according to claim 6, wherein: One end of the ventilation pipe is sleeved outside the liquid guiding member. A liquid inlet communicating with the liquid storage chamber is formed in the ventilation pipe. The liquid guiding member is attached to the inner wall of the ventilation pipe corresponding to the liquid inlet. Alternatively, one end of the ventilation pipe abuts against the liquid guiding member, and the outer peripheral wall of the liquid guiding member is exposed in the liquid storage chamber.

8. The cartridge according to claim 6, wherein: An air inlet chamber separated from the liquid storage chamber is arranged along the axial direction of the cartridge housing in the cartridge housing. An air inlet hole is formed in the side wall of the cartridge housing. The air inlet chamber communicates with the air inlet hole and the ventilation gap respectively. The air inlet channel includes the air inlet hole, the air inlet chamber, and the ventilation gap.

9. The cartridge according to claim 6, wherein: The base serves as the shielding member, the sealing plug serves as the sealing component, and a communication port is formed in the base.

10. The cartridge according to claim 9, wherein: The cartridge further includes a magnetic member disposed on the base.

11. The cartridge according to claim 8, characterized in that: The induction channel communicates with the induction notch and the smoke outlet respectively.

12. An electronic cigarette, characterized in that: The electronic cigarette includes a battery assembly and the cartridge according to any one of claims 1-11. The cartridge is detachably inserted on the battery assembly.

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