Charging system for aerosol generating device

Abstract

The utility model discloses an aerosol generating device charging system which comprises an aerosol generating device and a charging box, and the aerosol generating device comprises a device charging circuit, an input and protection circuit, a device battery, a device control circuit, a device output circuit, an atomization device and a device switch. The output end of the input and protection circuit is connected to the input end of the device charging circuit, the first output end of the device charging circuit is connected to the input end of the device battery, and the second output end of the device charging circuit is connected to the first input end of the device control circuit. The first output end of the device battery is connected to the second input end of the device control circuit, the second output end of the device battery is connected to the first input end of the device output circuit, and the output end of the device control circuit is connected to the second input end of the device output circuit. The first output end of the device output circuit is connected to the input end of the atomization device, the second output end of the device output circuit is connected to the third input end of the device control circuit, and the output end of the device switch is connected to the fourth input end of the device control circuit. The input and protection circuit is configured in the system, so that the external power supply and the charging box do not interfere with each other when charging the battery rod.

Description

Technical Field

[0001] The utility model relates to the technical field of power supply control, in particular to a charging system for an aerosol generating device. Background Art

[0002] At present, the charging methods of aerosol generating devices on the market are usually to charge the battery directly through USB and to charge the battery directly through a charging box. When charging with a charging box, charging can be done through ejector contact, that is, one of the battery or the charging box is provided with an ejector, the other is provided with a contact, or both are provided with ejectors. When the battery contacts the charging box, charging can be done. However, this will cause the USB and the charging box to charge the battery at the same time, which will cause the USB and the charging box to interfere with each other during the charging process of the battery, resulting in a short circuit in the battery. Utility Model Content

[0003] In order to solve at least one of the technical problems in the prior art, the embodiment of the utility model provides a charging system for an aerosol generating device. The technical solution of the utility model is as follows:

[0004] The system comprises an aerosol generating device and a charging box, wherein the aerosol generating device can be loaded into the charging box; the aerosol generating device comprises a device charging circuit, an input and protection circuit, a device battery, a device control circuit, a device output circuit, an atomizing device and a device switch; the output end of the input and protection circuit is connected to the input end of the device charging circuit, the first output end of the device charging circuit is connected to the input end of the device battery, the second output end of the device charging circuit is connected to the first input end of the device control circuit, the first output end of the device battery is connected to the second input end of the device control circuit, and the second output end of the device battery is connected to the device output circuit. The first input end of the device control circuit is connected to the second input end of the device output circuit, the first output end of the device output circuit is connected to the input end of the atomization device, the second output end of the device output circuit is connected to the third input end of the device control circuit, and the output end of the device switch is connected to the fourth input end of the device control circuit; the charging box includes a charging box charging circuit, a charging box battery and a charging box output circuit, the output end of the charging box charging circuit is connected to the input end of the charging box battery, the output end of the charging box battery is connected to the input end of the output circuit, and the output end of the charging box output circuit is connected to the input end of the input and protection circuit.

[0005] Furthermore, the input and protection circuit includes a first trigger and a first protection circuit, the output end of the first trigger is connected to the input end of the first protection circuit, the output end of the first protection circuit is connected to the input end of the battery of the device, and the first trigger is at least one of TYPE-C, USB, multi-charging terminal or wireless charging.

[0006] Furthermore, the first protection circuit includes a first MOS tube, a second MOS tube and a first triode, the input end of the first MOS tube is connected to an output end of the first trigger, the other input end of the first MOS tube is connected to the collector of the first triode, the input end of the second MOS tube is connected to the device charging circuit, the output end of the second MOS tube is connected to the output end of the charging box output circuit, the output end of the first MOS tube is connected to the device charging circuit, and the first MOS tube and the second MOS tube are both P-type MOS tubes.

[0007] Furthermore, the first protection circuit also includes a third MOS tube, a fourth MOS tube and a second triode, the input end of the third MOS tube is connected to an output end of the first trigger, the other input end of the third MOS tube is connected to the base of the second triode, an input end of the fourth MOS tube is connected to the device charging circuit, the output end of the fourth MOS tube is connected to the output end of the charging box output circuit, the output end of the third MOS tube is connected to the device charging circuit, and the third MOS tube and the fourth MOS tube are both N-type MOS tubes.

[0008] Furthermore, the device charging circuit includes a first charging chip, an output end of the first charging chip is connected to the input and protection circuit, and the first charging chip is DIO58013ACD10.

[0009] Furthermore, the device output circuit includes a device output control chip and a second protection circuit, one input end of the device output control chip is connected to the output end of the device battery, another input end of the device output control chip is connected to the output end of the device control circuit, the output end of the device output control chip is connected to the input end of the second protection circuit, the first output end of the second protection circuit is connected to the atomization device, the output end of the second protection circuit is connected to the third input end of the device output control circuit, and the device output control chip is DTQ3205.

[0010] Furthermore, the charging box also includes a charging box battery, a charging box control circuit and a boost circuit, the input end of the charging box battery is connected to the output end of the charging circuit of the charging box, the output end of the charging box battery is connected to the input end of the charging box control circuit, the output end of the charging box control circuit is connected to the input end of the charging box output circuit, the output end of the charging box output circuit is connected to the input end of the boost circuit, and the output end of the boost circuit is connected to the input end of the input and protection circuit.

[0011] Furthermore, the charging box boost circuit includes a boost control chip, the input end of the boost control chip is connected to the charging box output circuit, the output end of the boost control circuit is connected to the input and protection circuit, and the boost control chip is MT36291.

[0012] Furthermore, the charging box charging circuit includes a second trigger and a charging box charging control chip, the output end of the second trigger is connected to the charging box charging control chip, the output end of the charging box charging control chip is connected to the input end of the charging box battery, the charging box charging control chip is SLM6300, and the second trigger is at least one of TYPE-C, USB, multiple charging terminals or wireless charging.

[0013] Furthermore, the charging box output circuit also includes an aerosol generating device insertion detection circuit.

[0014] Furthermore, the charging and battery capacity is greater than the device battery capacity.

[0015] The technical solution provided by the embodiment of the utility model has the following beneficial effects: an aerosol generating device charging system comprises an aerosol generating device and a charging box, wherein the aerosol generating device can be loaded into the charging box; the aerosol generating device comprises a device charging circuit, an input and protection circuit, a device battery, a device control circuit, a device output circuit, an atomizing device and a device switch; the output end of the input and protection circuit is connected to the input end of the device charging circuit, the first output end of the device charging circuit is connected to the input end of the device battery, the second output end of the device charging circuit is connected to the first input end of the device control circuit, the first output end of the device battery is connected to the second input end of the device control circuit, and the output end of the device battery is connected to the second input end of the device control circuit. The second output end is connected to the first input end of the device output circuit, the output end of the device control circuit is connected to the second input end of the device output circuit, the first output end of the device output circuit is connected to the input end of the atomization device, the second output end of the device output circuit is connected to the third input end of the device control circuit, and the output end of the device switch is connected to the fourth input end of the device control circuit; the charging box includes a charging circuit of the charging box, a charging box battery and a charging box output circuit, the output end of the charging circuit of the charging box is connected to the input end of the charging box battery, the output end of the charging box battery is connected to the input end of the output circuit, and the output end of the charging box output circuit is connected to the input end of the input and protection circuit. By configuring the input and protection circuit in the system, the external power supply and the charging box can not interfere with each other when charging the battery rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 It is a structural schematic diagram of a charging system for an aerosol generating device provided by an embodiment of the utility model.

[0018] Figure 2 It is a schematic diagram of an input and protection circuit provided in one embodiment of the utility model.

[0019] Figure 3 It is a schematic diagram of an input and protection circuit provided by another embodiment of the utility model.

[0020] Figure 4 It is a schematic diagram of a charging circuit of a device provided by an embodiment of the utility model.

[0021] Figure 5 It is a schematic diagram of a device control circuit provided by an embodiment of the utility model.

[0022] Figure 6 It is a schematic diagram of a switch circuit of a device provided by an embodiment of the utility model.

[0023] Figure 7 It is a schematic diagram of an output circuit of a device provided in one embodiment of the utility model.

[0024] Figure 8 It is a schematic diagram of a charging circuit of a charging box provided in one embodiment of the utility model.

[0025] Fig. 9 It is a schematic diagram of a charging box boost circuit provided by an embodiment of the utility model.

[0026] Fig.10 This is a schematic diagram of a charging box output circuit provided by an embodiment of the utility model. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0028] Unless otherwise defined, all technical and scientific terms used in this document have the same meaning as commonly understood by technicians in the technical field of the present invention; the terms used in this specification are only for the purpose of describing specific embodiments and are not intended to limit the present invention. For example, the directions or positions indicated by terms such as "length", "width", "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", and "outside" are based on the directions or positions shown in the drawings, which are only for the convenience of description and cannot be understood as limitations on the present technical solution.

[0029] The terms "including" and "having" and any variations thereof in the specification and claims of the present utility model and the above-mentioned drawings are intended to cover non-exclusive inclusions; the terms "first", "second", etc. in the specification and claims of the present utility model or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order. "Multiple" means two or more, unless otherwise clearly and specifically defined.

[0030] In addition, the reference to "embodiment" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiment may be included in at least one embodiment of the present invention. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0031] refer to Figure 1 , which shows a schematic structural diagram of a charging system for an aerosol generating device provided by an embodiment of the utility model.

[0032] As an example, the system includes an aerosol generating device 1 and a charging box 2, and the aerosol generating device 1 can be loaded into the charging box 2; the aerosol generating device 1 includes a device charging circuit 110, an input and protection circuit 120, a device battery 130, a device control circuit 140, a device output circuit 150, an atomization device 160 and a device switch 170; the output end of the input and protection circuit 120 is connected to the input end of the device charging circuit 110, the first output end of the device charging circuit 110 is connected to the input end of the device battery 130, the second output end of the device charging circuit 110 is connected to the first input end of the device control circuit 140, the first output end of the device battery 130 is connected to the second input end of the device control circuit 140, and the second output end of the device battery 130 is connected to the device output circuit The first input end of the circuit 150, the output end of the device control circuit 140 is connected to the second input end of the device output circuit 150, the first output end of the device output circuit 150 is connected to the input end of the atomization device 160, the second output end of the device output circuit 150 is connected to the third input end of the device control circuit 140, and the output end of the device switch 170 is connected to the fourth input end of the device control circuit 140; the charging box 2 includes a charging box charging circuit 210, a charging box battery 220 and a charging box output circuit 240, the output end of the charging box charging circuit 210 is connected to the input end of the charging box battery 220, the output end of the charging box battery 220 is connected to the input end of the output circuit 240, and the output end of the charging box output circuit 240 is connected to the input end of the input and protection circuit 120.

[0033] Optionally, the charging box 2 also includes a charging box battery 220 , and the battery capacity of the charging box battery 220 is greater than the battery capacity of the device battery 130 .

[0034] Optional, such as Figure 2As shown, the input and protection circuit includes a first trigger and a first protection circuit. The input end of the first trigger is used to connect to an external power supply. It should be noted that the external power supply includes but is not limited to: a charger, a mobile power supply, a mobile terminal and other power supply devices that can provide electrical energy. The present application does not limit this. The output end of the first trigger is connected to the input end of the first protection circuit, and the output end of the first protection circuit is connected to the input end of the charging circuit of the device. The first trigger is at least one of TYPE-C, USB, multiple charging terminals or wireless charging. Specifically, pins 7-10 of the first trigger J1 are directly grounded, pin A9 is the VBUS1 port outputting the VBUS5V signal, pin B9 is the VBUS2 port outputting the VBUS5V signal, the VBUS5V signal outputs a 5V signal, and the 5V signal is connected to the D input terminal of the first MOS tube Q5 with model NP3401MR, pin A5 is the CC1 port grounded through parallel fixed resistors R5 and R7, and it outputs the UP_DAT_P3_3 signal, B5 is the CC2 port, grounded through a fixed resistor R8 with a resistance of 1K, pin A12 is the GND1 port grounded, and pin B12 is the GND2 port grounded.

[0035] Optionally, the first protection circuit includes a first MOS tube, a second MOS tube and a first triode, the input end of the first MOS tube is connected to an output end of the first trigger, the other input end of the first MOS tube is connected to the collector of the first triode, the input end of the second MOS tube is connected to the device charging circuit, the output end of the second MOS tube is connected to the output end of the charging box output circuit, the output end of the first MOS tube is connected to the device charging circuit, and the first MOS tube and the second MOS tube are both P-type MOS tubes.

[0036] Specifically, the first MOS tube Q5 is a P-type MOS tube, model NP3401MR, the D input end of the MOS tube Q5 is connected to the base of the transistor Q4 model MMBT3904T through R15 with a resistance value of 10K, the G input end of the MOS tube Q5 is connected to the USB_5V signal through R10 with a resistance value of 1K, the G input end of the MOS tube Q5 is connected to the collector of the transistor Q4, the emitter of the transistor Q4 is grounded, and the S output end of the MOS tube Q5 is connected to the USB_5V signal. The second MOS tube Q6 is a P-type MOS tube, model NP3401MR, the S output end of the MOS tube Q6 is connected to the USB_5V signal, the G input end of the MOS tube Q6 is connected to the VBUS5V signal output by the trigger A9 pin through R18 with a resistance value of 1K, and the D input end of the MOS tube Q6 is connected to the 5VIN signal. More specifically, when the USB interface is plugged in and powered on, the first pin of Q4 obtains a high level through R15, Q4 is turned on to pull down the level of the first pin of MOS tube Q5, MOS tube Q5 is a P tube so it is turned on, and the voltage is output from the second pin of MOS tube Q5. When the ejector pin of the charging box is connected to the ejector pin 5VIN of the battery, MOS tube Q6 is not turned on because the first pin is connected to the USB input pin through R18 and obtains a high level, thus preventing the power from the charging box from coming over. When charging without plugging in the data cable, the first pin of MOS tube Q6 is pulled down by R18 and R16, MOS tube Q6 is turned on, and the second pin of QMOS tube Q6 outputs the charging voltage to the charging IC to charge the battery. At this time, there is no power supply at both ends of Q5, and the whole is in an open circuit state.

[0037] Optional, such as Figure 3 As shown, the first protection circuit also includes a third MOS tube, a fourth MOS tube and a second triode, the input end of the third MOS tube is connected to an output end of the first trigger, the other input end of the third MOS tube is connected to the base of the second triode, an input end of the fourth MOS tube is connected to the device charging circuit, the output end of the fourth MOS tube is connected to the output end of the charging box output circuit, the output end of the third MOS tube is connected to the device charging circuit, and the third MOS tube and the fourth MOS tube are both N-type MOS tubes.

[0038] Specifically, the third MOS tube Q3 and the fourth MOS tube Q1 are both N-type MOS tubes of model NP3400MR, the third port of the MOS tube Q3 is connected to the first port through R10 with a resistance value of 1K, the third port of the MOS tube Q3 is connected to the base of the transistor Q7 of model MMBT3904T through R15 with a resistance value of 1K, the second port of the MOS tube Q3 is connected to the USB_5V signal, the second port of the MOS tube Q1 is connected to the USB_5V signal, the first port of the MOS tube Q1 is connected to the collector of the transistor Q7, the emitter of the transistor Q7 is grounded, the third port of the MOS tube Q1 is connected to the 5VIN signal, the first port of the MOS tube Q1 is connected to the 5VIN signal through R18 with a resistance value of 1K, and the GND1 terminal is grounded. More specifically, when the USB interface is plugged in, the first pin of Q3 obtains a high level through R10, and the Q3 MOS tube is an N-tube that turns on the second pin to output the charging voltage. When the charging box's ejector pin is plugged into the battery's ejector pin and the charging box contact point, Q4 is the first pin of the N tube and also gets a high level through R15, Q4 is turned on, and the level of the first pin of the Q1MOS tube is pulled down, Q1 is not turned on, thus preventing the power from the charging box from coming in. When the USB interface is unplugged, the first pin of the Q1 MOS tube gets a high level through R18, the Q1 MOS tube is turned on, and the second pin of Q1 outputs the charging voltage. It goes to the charging IC to charge the battery. At this time, since Q1 is turned on, the current flows from the 3rd pin of Q1 to the 2nd pin of Q1, and Q3 is not turned on, so the current from the 2nd pin of Q3 cannot flow to the 3rd pin of Q3.

[0039] Optionally, the device charging circuit 110 includes a first charging chip, the output end of the first charging chip is connected to the input and protection circuit, and the first charging chip is DIO58013ACD10. Figure 4 As shown, pin 4 of the first charging chip U2 is the EN port grounded, pin 6 of U2 is the GND port grounded, pin 11 of U2 is the PD port grounded, and pin 1 of U2 is connected to the USB_5V signal, which is obtained through the USB_IN_P0_2 signal output by pin 8 of the control chip U1 in the device control circuit and R11 with a resistance of 100K. Pin 2 of U2 is the CHGB end that outputs the CHG_DET_P0_1 signal, which is connected to the BAT end of pin 10 through R3 with a resistance of 47K. Pin 9 of U2 is the ISET end and is grounded through R4 with a resistance of 1.2K. Pin 8 of U2 is the IBF end, which is grounded through R6 with a resistance of 33K. Pin 10 of U2 is the BAT end connected to the VCC_BAT signal.

[0040] like Figure 5-Figure 6As shown, it is a schematic diagram of the device control circuit 140 and the device switch 170. The device control circuit 140 includes a control chip U1, whose model is TM52F1376-MTP-D1 QFN20, and the device switch 170 is U5. The output end of the device switch 170 is connected to the fourth input end of the device control circuit 140. Specifically, the O-end pin No. 3 of the device switch U5 is connected to the No. 1 pin MIC_IN_P2.5 of the control chip U1 through R35 for transmitting a switch signal. At the same time, the O-end pin No. 3 of the device switch U5 is also connected to the upper end of the grounding resistor R34, and the lower end of the grounding resistor R34 is grounded. The V-end pin No. 1 of the device switch U5 is connected to VCC_BAT, and the G-end pin No. 2 of the device switch U5 is grounded. The VCC end of the control chip U1 No. 7 pin is used as a power input to receive the VCC_BAT signal of the device battery 130. That is to say, the control chip U1 receives the switch signal MIC_IN_P2.5 of the device switch U5 through pin 1, and controls the output state of the entire aerosol generating device 1. As an example, when the switch signal of the device switch U5 is at a low level, the control chip U1 receives a normal working signal by default, and then controls the entire aerosol generating device 1 to be in a normal output state. When the switch signal of the device switch U5 is at a high level, the control chip U1 receives a stop working signal by default, and then controls the entire aerosol generating device 1 to be in a shut-off output state. It should be noted that the switch signal can also be used when the control chip U1 receives a stop working signal by default when the switch signal is at a low level, and when the control chip U1 receives a normal working signal by default when the switch signal is at a high level, and there is no limitation on this.

[0041] Optional, such as Figure 7 As shown, the device output circuit 150 includes a device output control chip and a second protection circuit, one input end of the device output control chip is connected to the output end of the device battery 130, the other input end of the device output control chip is connected to the output end of the device control circuit 140, the output end of the device output control chip is connected to the input end of the second protection circuit, the first output end of the second protection circuit is connected to the atomization device, the second output end of the second protection circuit is connected to the third input end of the device output control circuit, and the device output control chip is DTQ3205.

[0042] Specifically, the output control chip U6 model is DTQ3205, and the pins 1-3 of the chip U6 are connected to the output end of the device battery 130 for receiving the VCC_BAT signal, the pin 4 is connected to one end of R13 with a resistance of 1K, and the other end of R13 is connected to VCC_BAT, and the end of R13 connected to the pin 4 of U6 is connected to the VOUT_EN_P1_5 of the control chip U1 in the control circuit 140 through R21, and the pins 5-8 of the chip U6 are connected to VCC_BAT through R31, wherein the resistance of R31 is 3MΩ, and the other end of the chip U6 is also connected to the atomization device. 160 is connected to transmit the VOUT signal. The VOUT end of the device battery output collects the parameters of the heating element in the atomization device 160 through the sampling resistors R19 and R20, and transmits the parameters to the 14th pin RLH_ADC_P1_2 and the 15th pin RLL_ADC_P1_4 of the control chip U1. The control chip U1 outputs the control signal according to the parameters of the heating element to adjust the output state, wherein the resistance value of the sampling resistors R19 and R20 is 1KΩ, and the voltage divider resistor R25 is connected between the sampling resistors R19 and R20 for voltage division, which can specifically sample the 2R / R1206 resistor. The second protection circuit is a MOS tube Q2, and the specific model that can be used is NP3401MR. The D input terminal is connected to the right end of the voltage-dividing resistor R25, and the G input terminal receives the sampling enable signal of RLD_EN_P0_3 from the control chip U1 through a resistor R14 with a resistance value of 100RΩ. The S output terminal is connected to the VCC_BAT signal, and the G input terminal is connected to the VCC_BAT signal through a fixed resistor R17. That is, the MOS tube Q2 of the second protection circuit mainly plays a switch protection role. After receiving the sampling enable signal of the device control circuit 140, it is turned on to sample the parameters of the heating element in the atomization device 160 and output them to the control chip U1 of the device control circuit 140. The control chip U1 outputs a control signal according to the parameters of the heating element to adjust the output state, which can effectively ensure that the heating element works in a stable and ideal state, ultimately ensuring the atomization effect and improving the user experience.

[0043] Optional, such as Figure 8As shown, the charging box 2 also includes a charging box battery 220, a charging box control circuit 230 and a boost circuit 250. The input end of the charging box battery 220 is connected to the output end of the charging box charging circuit 210, the output end of the charging box battery 220 is connected to the input end of the charging box control circuit 230, the output end of the charging box control circuit 230 is connected to the input end of the charging box output circuit 240, the output end of the charging box output circuit 240 is connected to the input end of the boost circuit 250, and the output end of the boost circuit 250 is connected to the input end of the input and protection circuit 120. The charging box charging circuit 210 includes a second trigger and a charging box charging control chip. The output end of the second trigger is connected to the charging box charging control chip, and the output end of the charging box charging control chip is connected to the input end of the charging box battery. The charging box charging control chip is SLM6300, and the second trigger is at least one of TYPE-C, USB, multi-charging terminals or wireless charging.

[0044] Specifically, pins 7 and 8 of the second trigger J2 are grounded, pin A9 outputs USB_5V signal for the VBUS1 port, pin B9 outputs USB_5V signal for the VBUS2 port, A5 is grounded for the CC1 port through parallel fixed resistors R2 and R3, and outputs UP_DAT_P3_3 signal, B5 is the CC2 port, grounded through R1 with a resistance of 5.1KΩ. Pin A9 outputs USB_5V signal for the VBUS2 port, and the USB_5V signal outputs 5V1 signal, and the 5V1 signal is connected to the VIN end of pin 1 of the overvoltage protection chip U21 of the charging box model SLM6300. Pin 5 of chip U21 is the NCE port grounded, pin 9 is the GND port grounded, pin 11 is the PGND port grounded, pin 3 is the NCHRG port connected to the VCC_BAT signal through a fixed resistor R6 with a resistance of 47KΩ, pin 3 is the NCHRG port receiving the CHG_DET_P3_2 signal, pin 10 is the LX port connected to the VCC_BAT signal through the coil L1 model MS0402_1.5UH and the resistor R7, pin 8 is the VS port connected to pin 1 of the coil L1, and pin 7 is the BAT port connected to the VCC_BAT signal.

[0045] Optional, such as Fig. 9As shown, the charging box boost circuit 250 includes a boost control chip, the input end of the boost control chip is connected to the charging box output circuit, the output end of the boost control circuit is connected to the input and protection circuit, and the boost control chip is MT36291. Specifically, pin 5 of chip U25 is a VIN port, connected to the VCC_BAT signal, and pin 5 is also connected to pin 1 of chip U5 through coil L2 of model MS00402_1.5UH, pin 6 of U25 is an OC port, grounded through a fixed resistor R13 with a resistance of 47KΩ, pin 4 is an EN port, connected to the MT36291_EN_P0_4 signal generated by grounding through resistor R14, pin 1 is a SW port, connected to the 5V_OUT signal through a diode D2 of model DSS24L, pin 3 is an FB port, connected to the 5V_OUT signal through a fixed resistor R15, and grounded through a fixed resistor R16 with a resistance of 150KΩ.

[0046] Optional, such as Fig.10 As shown, it is a schematic diagram of the output circuit 240 of the charging box. The S port of the MOS tube Q22 of model NP3401MR outputs a 5V_OUT signal, and the G port is connected to the collector of the transistor Q21 of model RS3904T through a resistor R18 with a resistance value of 10KΩ in parallel. The emitter of the transistor Q21 is grounded, and the base of the transistor Q21 is connected to the VOUT_EN_P0_3 signal through the resistance R19 with a resistance value of 1KΩ. The D end of the MOS tube Q22 is connected to the VOUT signal, which is output as a VOUT1 signal through a 0.2R / R1206 resistor R22 and is connected to the V5+ signal. The MOS tube Q22 of model NP3401MR Port 2 of 23 is grounded, port 1 is connected to ADCGND_EN_P3_5 signal through R29 with a resistance of 1KΩ, port 3 is connected to VOUT signal through two parallel resistors R30 with a resistance of 2KΩ and a resistor R20 with a resistance of 2KΩ, and the connection between resistors R20 and R30 is also connected to RLL_ADC_P1_4 signal, the other end of port 3 is connected to VCC_BAT signal through R23, R24 and R31 in parallel, wherein the resistance of resistor R31 is 2KΩ, the resistance of R24 is 2KΩ, the resistance of R23 is 3MΩ, and the connection between resistors R23, R24 and R34 is connected to RLH_ADC_P1_2 signal.

[0047] The above embodiment can effectively isolate the charging method of the charging box and the USB by providing input and protection circuits, thereby avoiding interference between the USB and the charging box during the charging process of the battery rod.

[0048] The above is only an embodiment of the utility model. The common sense such as the known specific structure and characteristics in the scheme is not described in detail here. The ordinary technicians in the relevant field know all the common technical knowledge in the technical field of the utility model before the application date or priority date, can obtain all the existing technologies in the field, and have the ability to apply the conventional experimental means before that date. The ordinary technicians in the relevant field can improve and implement this scheme in combination with their own abilities under the enlightenment given by this application. Some typical known structures or known methods should not become obstacles for ordinary technicians in the relevant field to implement this application. It should be pointed out that for the technicians in this field, without departing from the structure of the utility model, several deformations and improvements can be made, which should also be regarded as the protection scope of the utility model, which will not affect the effect of the implementation of the utility model and the practicality of the patent. The protection scope required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to explain the content of the claims.

Claims

1. An aerosol generating device charging system, characterized in that: The system includes an aerosol generating device and a charging box, wherein the aerosol generating device can be loaded into the charging box; The aerosol generating device comprises a device charging circuit, an input and protection circuit, a device battery, a device control circuit, a device output circuit, an atomizing device and a device switch; The output end of the input and protection circuit is connected to the input end of the device charging circuit, the first output end of the device charging circuit is connected to the input end of the device battery, the second output end of the device charging circuit is connected to the first input end of the device control circuit, the first output end of the device battery is connected to the second input end of the device control circuit, the second output end of the device battery is connected to the first input end of the device output circuit, the output end of the device control circuit is connected to the second input end of the device output circuit, the first output end of the device output circuit is connected to the input end of the atomization device, the second output end of the device output circuit is connected to the third input end of the device control circuit, and the output end of the device switch is connected to the fourth input end of the device control circuit; The charging box includes a charging box charging circuit, a charging box battery and a charging box output circuit. The output end of the charging box charging circuit is connected to the input end of the charging box battery, the output end of the charging box battery is connected to the input end of the output circuit, and the output end of the charging box output circuit is connected to the input end of the input and protection circuit.

2. The aerosol generating device charging system according to claim 1, characterized in that: The input and protection circuit includes a first trigger and a first protection circuit, the output end of the first trigger is connected to the input end of the first protection circuit, the output end of the first protection circuit is connected to the input end of the device battery, and the first trigger is at least one of TYPE-C, USB, multi-charging terminal or wireless charging.

3. The aerosol generating device charging system according to claim 2, characterized in that: The first protection circuit includes a first MOS tube, a second MOS tube and a first triode, the input end of the first MOS tube is connected to an output end of the first trigger, the other input end of the first MOS tube is connected to the collector of the first triode, the input end of the second MOS tube is connected to the device charging circuit, the output end of the second MOS tube is connected to the output end of the charging box output circuit, the output end of the first MOS tube is connected to the device charging circuit, and the first MOS tube and the second MOS tube are both P-type MOS tubes.

4. The aerosol generating device charging system according to claim 2, characterized in that: The first protection circuit also includes a third MOS tube, a fourth MOS tube and a second triode, the input end of the third MOS tube is connected to an output end of the first trigger, the other input end of the third MOS tube is connected to the base of the second triode, an input end of the fourth MOS tube is connected to the device charging circuit, the output end of the fourth MOS tube is connected to the output end of the charging box output circuit, the output end of the third MOS tube is connected to the device charging circuit, and the third MOS tube and the fourth MOS tube are both N-type MOS tubes.

5. The aerosol generating device charging system according to claim 1, characterized in that: The device charging circuit includes a first charging chip, and an output end of the first charging chip is connected to the input and protection circuit.

6. The aerosol generating device charging system according to claim 1, characterized in that: The device output circuit includes a device output control chip and a second protection circuit, one input end of the device output control chip is connected to the output end of the device battery, another input end of the device output control chip is connected to the output end of the device control circuit, the output end of the device output control chip is connected to the input end of the second protection circuit, the first output end of the second protection circuit is connected to the atomization device, and the output end of the second protection circuit is connected to the third input end of the device output control circuit.

7. The aerosol generating device charging system according to claim 1, characterized in that: The charging box also includes a charging box battery, a charging box control circuit and a boost circuit. The input end of the charging box battery is connected to the output end of the charging circuit of the charging box, the output end of the charging box battery is connected to the input end of the charging box control circuit, the output end of the charging box control circuit is connected to the input end of the charging box output circuit, the output end of the charging box output circuit is connected to the input end of the boost circuit, and the output end of the boost circuit is connected to the input end of the input and protection circuit.

8. The aerosol generating device charging system according to claim 7, characterized in that: The charging box boost circuit includes a boost control chip, the input end of the boost control chip is connected to the charging box output circuit, and the output end of the boost control chip is connected to the input and protection circuit.

9. The aerosol generating device charging system according to claim 1, characterized in that: The charging circuit of the charging box includes a second trigger and a charging control chip for the charging box. The output end of the second trigger is connected to the charging control chip for the charging box. The output end of the charging control chip for the charging box is connected to the input end of the battery of the charging box. The second trigger is at least one of TYPE-C, USB, multiple charging terminals or wireless charging.

10. The aerosol generating device charging system according to claim 1, characterized in that: The battery capacity of the charging box is greater than the battery capacity of the device.

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