Atomization equipment and charging management device

Abstract

The invention relates to the technical field of charging management of atomization equipment, and provides a charging management device, a state controller circuit detects the state of a battery VBAT, and the state controller circuit is configured to adjust the connection state of the state controller circuit and the battery VBAT according to the charging state of the battery VBAT so as to change a first indication signal; the first indication signal is output through the state pin; the MCU chip circuit is electrically connected with the state pin, obtains the first indication signal, and determines the current charging state of the atomization equipment according to the first indication signal to obtain the current charging state of the atomization equipment for current charging state indication, so that peripheral circuits are reduced, the circuit cost is reduced, and the stability of the circuit is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of atomization equipment, and in particular relates to an atomization equipment and a charging management device. Background Art

[0002] When charging atomizer devices, the current charging status needs to be captured. This includes four main types: uncharged, charging, fully charged, and overvoltage protection. Conventional charging management chips can only indicate the charging and fully charged states, requiring additional peripheral circuitry to capture the uncharged and overvoltage protection states. The main principle is as follows: the input voltage VCC is divided by a voltage divider circuit and input to the MCU. The MCU then detects the divided voltage and determines whether the device is in the uncharged or overvoltage protection state. In everyday use, due to the prevalence of fast charging and car chargers, charging using Type-C may result in high VCC voltages. Typical VCC voltages include 5V, 9V, 12V, 24V, and 32V. The normal operating voltage for atomizer devices is 5V. The charging management chip has built-in overvoltage protection. If the input voltage VCC exceeds 7V (a typical value), the charging management chip will immediately shut down charging. VCC is connected to the MCU via a voltage divider circuit. The MCU's power supply is a 3.7V polymer battery with a maximum voltage of 4.2V. In an overvoltage protection scenario, VCC can reach as high as 32V. Even with the voltage divider, VCC will far exceed the MCU's maximum operating voltage, affecting MCU stability and causing unknown reliability issues. Therefore, conventional charge management chips cannot directly integrate the four functions (not charging, charging, fully charged, and overvoltage protection) and require peripheral circuitry. This circuitry carries certain risks in terms of stability and reliability, and is also costly. For such applications, the indication methods used by traditional charge management chips are not ideal.

[0003] In summary, the existing detection technology for the four charging states of atomizer devices has technical problems such as reliance on peripheral circuits, low stability, and high circuit costs. Summary of the Invention

[0004] In view of the shortcomings of the above-mentioned technologies, the present invention provides an atomization device and a charging management device to reduce peripheral circuits and lower circuit costs.

[0005] The present invention provides a charging management device for monitoring the charging status of an atomizing device, comprising: A state controller circuit, the state controller circuit being electrically connected to a battery VBAT and a ground GND; the state controller circuit being configured to detect a state of the battery VBAT and to output a first indication signal representing a charging state based on the connection state between the state controller circuit and the battery VBAT; The state controller circuit includes a state pin, and the state controller circuit is configured to adjust the connection state between the state controller circuit and the battery VBAT according to the charging state of the battery VBAT, thereby changing the first indication signal, and output the first indication signal through the state pin; The MCU chip circuit is electrically connected to the status pin, and the MCU chip circuit obtains the first indication signal and determines the current charging status of the atomization device according to the first indication signal.

[0006] In some embodiments, the status pins include at least one status pin, and the status pin is configured to represent different first indication signals by outputting different voltages.

[0007] In some embodiments, the status pins include a status pin 1 and a status pin 2, and the status pin 1 and the status pin 2 respectively output a high level or a low level corresponding to the connection status between the state controller circuit and the battery VBAT; The first indication signal includes: the status pin 1 and the status pin 2 both output a high level; the status pin 1 outputs a high level and the status pin 2 outputs a low level; the status pin 1 outputs a low level and the status pin 2 outputs a high level; the status pin 1 and the status pin 2 both output a low level.

[0008] In some embodiments, the four first indication signals represent uncharged, charging, fully charged, and overvoltage protection, respectively.

[0009] In some embodiments, the state controller circuit further includes a pull-up resistor R1, a pull-up resistor R2, a field effect transistor Q1, a field effect transistor Q2, and a state controller; One end of the pull-up resistor R1 is connected to the battery VBAT, and the other end is connected to the drain of the field effect transistor Q1 and the status pin 1; One end of the pull-up resistor R2 is connected to the battery VBAT, and the other end is connected to the drain of the field effect transistor Q2 and the status pin 2; The gate of the field effect transistor Q1 is connected to the state controller, and the source of the field effect transistor Q1 is connected to the ground GND; the gate of the field effect transistor Q2 is connected to the state controller, and the source of the field effect transistor Q2 is connected to the ground GND.

[0010] In some embodiments, when the state controller detects that the battery VBAT is not connected to the charging circuit, the state controller controls the field effect transistor Q1 and the field effect transistor Q2 to be in a closed state, so that the status pin 1 and the status pin 2 both output a high level; When the state controller detects that the voltage of the battery VBAT is rising and the charging current is flowing to the battery VBAT, it controls the field effect transistor Q1 to be in a closed state and the field effect transistor Q2 to be in a closed state, so that the state pin 1 outputs a low level and the state pin 2 outputs a high level; When the state controller detects that the voltage of the battery VBAT reaches the threshold indicating a fully charged state and the charging current decreases to a current threshold range indicating a fully charged state, the state controller controls the field effect transistor Q1 to be in an on state and the field effect transistor Q2 to be in an off state, so that the state pin 1 outputs a high level and the state pin 2 outputs a low level; When the state controller detects that the voltage of the battery VBAT exceeds a safety threshold, the state controller controls the field effect transistor Q1 and the field effect transistor Q2 to be in an on state, so that the state pin 1 and the state pin 2 both output a low level.

[0011] In some embodiments, the status pin includes a status foot, the status controller circuit and the battery VBAT have multiple connection points, and the status foot outputs different voltage values corresponding to different connection states between the state controller circuit and the battery VBAT to represent different charging states.

[0012] In some embodiments, the state controller circuit further includes a voltage divider resistor R3, a voltage divider resistor R4, a voltage divider resistor R5 and a state controller; The battery VBAT, the voltage divider resistor R3, the voltage divider resistor R4, the voltage divider resistor R5, and the ground GND are connected in series in sequence; The connection points are provided between the battery VBAT and the voltage-dividing resistor R3, between the voltage-dividing resistor R3 and the voltage-dividing resistor R4, between the voltage-dividing resistor R4 and the voltage-dividing resistor R5, and between the voltage-dividing resistor R5 and the ground GND. The state controller controls the state pin to connect with any one of the connection points.

[0013] In some embodiments, the connection point is connected to the state controller, and the state controller is connected to the single state pin via an output terminal; The state controller monitors the battery VBAT and switches a connection point connected to the output terminal according to a state of the battery VBAT.

[0014] In some embodiments, when the state controller detects that the battery VBAT is not connected to the charging circuit, the state controller controls the connection point between the voltage-dividing resistor R5 and the GND to be connected to the output terminal; When the state controller detects that the voltage of the battery VBAT exceeds a safety threshold, the state controller controls the connection point between the battery VBAT and the voltage-dividing resistor R3 to be connected to the output end; When the state controller detects that the voltage of the battery VBAT is rising and the charging current is flowing to the battery VBAT, When the state controller detects that the voltage of the battery VBAT reaches the threshold value representing a fully charged state and the charging current decreases to the current threshold range representing a fully charged state, The connection point between the voltage-dividing resistor R3 and the voltage-dividing resistor R4 is controlled to be connected to the output end, or the connection point between the voltage-dividing resistor R4 and the voltage-dividing resistor R5 is controlled to be connected to the output end.

[0015] In some embodiments, the voltage-dividing resistor R3 , the voltage-dividing resistor R4 , and the voltage-dividing resistor R5 have the same resistance value.

[0016] The present application also provides an atomization device, comprising the charging management device described in any of the above embodiments.

[0017] Compared with the related art, the present invention has the following beneficial effects: The present invention provides a charging management device for an atomizing device. A state controller circuit detects the state of a battery VBAT. The state controller circuit is configured to adjust the connection state between the state controller circuit and the battery VBAT according to the charging state of the battery VBAT, thereby changing a first indication signal and outputting the first indication signal through the status pin. An MCU chip circuit is electrically connected to the status pin, obtains the first indication signal, and determines the current charging state of the atomizing device based on the first indication signal, thereby obtaining the current charging state of the atomizing device and indicating the current charging state. No peripheral circuits are required, and the device can detect charging states such as uncharged and overvoltage protection through its own settings, thereby reducing peripheral circuits and circuit costs. Since the MCU chip circuit receives the indication information output by the status pin, even when VCC is too high, the MCU chip circuit can still reliably determine the charging state of the battery VBAT, thereby improving circuit stability. BRIEF DESCRIPTION OF THE DRAWINGS The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their description are used to explain the present invention and do not constitute an undue limitation of the present invention. Some specific embodiments of the present invention will be described in detail in an illustrative and non-restrictive manner with reference to the drawings. The same reference numerals in the drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the drawings: Figure 1 This is a schematic diagram of a circuit structure of a charging management device according to an embodiment of the present invention; Figure 2 This is a schematic diagram of a circuit structure in which a state controller circuit according to an embodiment of the present invention is connected to two state pins; Figure 3 This is a schematic diagram of a circuit structure in which a state controller circuit is connected to a single state pin according to an embodiment of the present invention; Figure 4 Schematic diagram of the level combination of the two status pins in each charging state of the embodiment of the present invention; Figure 5 Schematic diagram of the voltage output of a single status pin in each charging state according to an embodiment of the present invention.

[0018] Figure 6 Schematic diagram of an atomization device according to an embodiment of the present invention. DETAILED DESCRIPTION In order to enable those skilled in the art to better understand the present invention, the technical solution in this embodiment will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiment is only a part of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work should fall within the scope of protection of the present invention.

[0019] See also Figure 1 This embodiment provides a charging management device for monitoring the charging status of an atomizing device. The charging management device includes: A state controller circuit, the state controller circuit being electrically connected to a battery VBAT and a ground GND; the state controller circuit being configured to detect a state of the battery VBAT and to output a first indication signal representing a charging state based on the connection state between the state controller circuit and the battery VBAT; The state controller circuit includes a state pin, and the state controller circuit is configured to adjust the connection state between the state controller circuit and the battery VBAT according to the charging state of the battery VBAT, thereby changing the first indication signal, and output the first indication signal through the state pin; The MCU chip circuit is electrically connected to the status pin, and the MCU chip circuit obtains the first indication signal and determines the current charging state of the atomizer device according to the first indication signal. In the technical solution of this embodiment, the charging state can be monitored by the state controller circuit according to actual needs, and by setting multiple first indication signals corresponding to multiple charging states, the connection state between the state controller circuit and the battery VBAT is controlled to change according to the state of the battery VBAT, and then different first indication signals are output to the MCU chip circuit. Not only can the monitoring of the charging state of charging and fully charged be achieved, but also the monitoring of charging states such as uncharged and overvoltage protection can be achieved without relying on peripheral circuits, thereby reducing peripheral circuits and reducing circuit costs.

[0020] In some embodiments, the status pins include at least one status pin, and the status pin is configured to represent different first indication signals by outputting different voltages.

[0021] See also Figure 2 、 Figure 4 In some embodiments, the status pins include status pin 1 and status pin 2; when the connection status between the state controller circuit and the battery VBAT changes, status pin 1 and status pin 2 output an indication signal representing the charging status according to the connection change status.

[0022] In some embodiments, the status pin 1 and the status pin 2 respectively output a high level or a low level corresponding to the connection status between the state controller circuit and the battery VBAT; The first indication signal includes: the status pin 1 and the status pin 2 both output a high level; the status pin 1 outputs a high level; the status pin 2 outputs a low level; the status pin 1 outputs a low level and the status pin 2 outputs a high level; the status pin 1 and the status pin 2 both output a low level.

[0023] In some embodiments, when both status pin 1 and status pin 2 output a high level, when status pin 1 outputs a high level and status pin 2 outputs a low level, when status pin 1 outputs a low level and status pin 2 outputs a high level, or when both status pin 1 and status pin 2 output a low level, these respectively represent different charging states. The charging states may include uncharged, charging, fully charged, and overvoltage protection.

[0024] In some embodiments, when the state controller circuit detects that the battery VBAT is not connected to the charging circuit, for example, when the charging current is detected to be 0, it is identified as an uncharged state, and the connection state between the state controller circuit and the battery VBAT is controlled and adjusted so that the state pin 1 outputs a high level and the state pin 2 outputs a high level, indicating that the battery VBAT is currently in an uncharged state.

[0025] When the state controller circuit detects that the battery VBAT is in a charging state, for example, when it detects that the voltage of the battery VBAT is rising and a charging current is flowing to the battery VBAT, it is identified as a charging state, and the connection state between the state controller circuit and the battery VBAT is controlled and adjusted so that the state pin 1 outputs a high level and the state pin 2 outputs a low level, indicating that the battery VBAT is currently in a charging state.

[0026] When the state controller circuit detects that the battery VBAT is in a fully charged state, for example, when it detects that the voltage of the battery VBAT reaches a threshold indicating a fully charged state, and when the charging current decreases to a smaller current threshold range indicating a fully charged state, it is identified as a fully charged state, and the connection state between the state controller circuit and the battery VBAT is controlled and adjusted so that the state pin 1 outputs a low level and the state pin 2 outputs a high level, indicating that the battery VBAT is currently in a fully charged state.

[0027] The state controller circuit detects that the battery VBAT is in an overvoltage protection state. For example, when it detects that the voltage of the battery VBAT exceeds a voltage threshold indicating safe charging, it is identified as an overvoltage protection state, and controls and adjusts the connection state between the state controller circuit and the battery VBAT so that the state pin 1 outputs a low level and the state pin 2 outputs a low level, indicating that the battery VBAT is currently in the overvoltage protection state.

[0028] It should be noted that in this embodiment, two pins are used as status pins to indicate four states: uncharged, charging, fully charged, and overvoltage protection. The high and low levels of the two pins change. The MCU chip circuit only needs to connect the pins to these two status pins, and judge the high and low levels of the pins to determine the current charging status, thereby realizing the indication of the charging status of the battery VBAT.

[0029] In some embodiments, when the status pin includes a status pin 1 and a status pin 2, the state controller circuit includes a pull-up resistor R1, a pull-up resistor R2, a field effect transistor Q1, a field effect transistor Q2, and a state controller; one end of the pull-up resistor R1 is connected to the battery VBAT, and the other end is connected to the drain of the field effect transistor Q1 and the status pin 1; one end of the pull-up resistor R2 is connected to the battery VBAT, and the other end is connected to the drain of the field effect transistor Q2 and the status pin 2; the gate of the field effect transistor Q1 is connected to the state controller, and the source of the field effect transistor Q1 is connected to the ground GND; the gate of the field effect transistor Q2 is connected to the state controller, and the source of the field effect transistor Q2 is connected to the ground GND.

[0030] In some embodiments, in the uncharged state, when the state controller detects that the battery VBAT is not connected to the charging circuit, for example, when the charging current is detected to be zero, the state controller detects this and turns off both FETs Q1 and Q2 by controlling the gates of the FETs. Since both FETs are turned off, both status pins 1 and 2 are pulled up to the VBAT voltage (high level). Consequently, both status pins 1 and 2 are high.

[0031] When the battery is charging, for example, when the state controller detects that the voltage at the battery's VBAT is rising and charging current is flowing to the battery's VBAT, the state controller controls the gate of field-effect transistor Q1 to remain closed, thereby maintaining the status pin 1 at a high level (VBAT). Simultaneously, the state controller turns on field-effect transistor Q2, connecting the status pin 2 to ground (GND). This causes the status pin 2 to go low (GND). This control method allows for a combination of status pin 1 being high (VBAT) and status pin 2 being low (GND).

[0032] When the battery is fully charged, for example, when the state controller detects that the voltage of the battery's VBAT reaches the threshold indicating a fully charged state and the charging current drops to the current threshold range indicating a fully charged state, the state controller turns off field-effect transistor Q1 and turns on field-effect transistor Q2. This causes status pin 1 to be grounded (GND) through field-effect transistor Q1, resulting in a low level. Simultaneously, status pin 2 is maintained at a high level (VBAT) via a pull-up resistor. This combination achieves a state where status pin 1 is low and status pin 2 is high.

[0033] When the state controller detects that the battery voltage exceeds the safety threshold, it activates the overvoltage protection mechanism. At this point, the state controller turns on the left and right field-effect transistors Q1 and Q2, respectively, grounding both status pins 1 and 2. Consequently, the voltage levels of both pins are pulled down to GND, achieving the low-level combination of the overvoltage protection state.

[0034] It is understood that in this embodiment, the FETs act as switches in the state controller circuit, controlling whether the circuit nodes (status pins 1 and 2) are connected to the battery's VBAT or ground GND. The state controller controls the switching of FETs Q1 and Q2 by adjusting the gate voltage of the FETs, thereby achieving different voltage level combinations. The state controller adjusts the FET states based on the battery's charge status (uncharged, charging, fully charged, and overvoltage), thereby controlling the voltage levels of status pins 1 and 2. The advantage of this circuit design is that the MCU chip circuit only needs to monitor the voltage levels of the two status pins to easily determine the current battery status.

[0035] See also Figure 3 、 Figure 5 In some embodiments, the status pin includes a status pin, the status controller circuit and the battery VBAT have multiple connection points, and the status pin outputs different voltage values corresponding to different connection states between the status controller circuit and the battery VBAT to represent different charging states.

[0036] In some embodiments, when the status pin includes a single status pin, the status controller circuit includes a voltage divider resistor R3, a voltage divider resistor R4, a voltage divider resistor R5 and a status controller; the battery VBAT, the voltage divider resistor R3, the voltage divider resistor R4, the voltage divider resistor R5 and the ground GND are connected in series in sequence; and the connection points are provided between the battery VBAT and the voltage divider resistor R3, between the voltage divider resistor R3 and the voltage divider resistor R4, between the voltage divider resistor R4 and the voltage divider resistor R5, and between the voltage divider resistor R5 and the ground GND; the status controller controls the single status pin to connect with any one of the connection points.

[0037] In some embodiments, the connection point is connected to a state controller, and the state controller is connected to a single state pin through an output terminal; the state controller monitors the battery VBAT and switches the connection point connected to the output terminal according to the state of the battery VBAT.

[0038] It should be noted that in this embodiment, a single status pin is used to indicate four charging states: uncharged, charging, fully charged, and overvoltage protection. The circuit uses voltage-divider resistors and a state controller to distribute and output different voltage values, thereby indicating different charging states. Voltage-divider resistors R3, R4, and R5 are connected in series to form a voltage-divider circuit. R3 is connected to the battery VBAT, R5 is connected to ground GND, and R4 is located between R3 and R5. This voltage-divider network is used to proportionally divide the battery VBAT voltage according to the instructions of the state controller, thereby outputting different voltage values. The state controller monitors the battery VBAT state (uncharged, charging, fully charged, overvoltage protection) and controls the output voltage based on the battery VBAT charge state. The state controller switches the output connection point based on the charge state, thereby changing the voltage of the single status pin.

[0039] In some embodiments, when the state controller detects that the battery VBAT is not connected to the charging circuit (not charging), it controls the connection point between the voltage divider resistor R5 and GND to be connected to the output terminal, that is, controls the single status pin to be connected to ground GND. Because the single status pin is pulled to the ground level, its voltage is 0V, indicating an uncharged state.

[0040] When the state controller detects that the battery VBAT is charging, for example, when it detects that the battery VBAT voltage is rising and charging current is flowing to the battery VBAT, it controls the connection point between the voltage divider resistors R3 and R4, or the connection point between the voltage divider resistors R4 and R5, to be connected to the output terminal, for example, the connection point between the voltage divider resistors R4 and R5. If the voltage divider resistors R3, R4, and R5 have the same resistance value, the single status pin outputs a voltage of 1 / 3 * VBAT. This voltage value is used to indicate the charging state, and the MCU chip circuit can identify this state by detecting the voltage of the single status pin.

[0041] When the battery reaches the threshold value of being fully charged, for example, when it is detected that the voltage of the battery VBAT reaches the threshold value representing the fully charged state, and / or when the charging current is reduced to the current threshold range representing the fully charged state, the connection point between the voltage divider resistor R3 and the voltage divider resistor R4 or the other connection point between the voltage divider resistor R4 and the voltage divider resistor R5 is controlled to be connected to the output end. For example, it can be the connection point between the voltage divider resistor R3 and the voltage divider resistor R4. If the voltage divider resistor R3, the voltage divider resistor R4, and the voltage divider resistor R5 have the same resistance value, the single status pin outputs a voltage of 2 / 3 * VBAT. This specific voltage value is used to indicate that the battery is fully charged, and the MCU chip circuit can also identify this state by measuring the voltage of a single status pin.

[0042] If the status controller detects that the battery voltage exceeds the safety threshold, it connects the connection point between the battery VBAT and the voltage divider resistor R3 to the output terminal, directly connecting the single status pin to the battery VBAT and outputting the VBAT voltage (i.e., the full battery voltage). By outputting the full battery VBAT voltage, the overvoltage protection status is indicated. The MCU chip circuit can also identify this status by measuring the voltage of the single status pin.

[0043] It will be appreciated that in this embodiment, four different status indications are achieved through a single status pin and a voltage-divider resistor network, reducing the number of pins and thus simplifying circuit design and MCU interface requirements. In some embodiments, if the voltage-divider resistors R3, R4, and R5 have the same resistance value, by dividing the battery VBAT voltage into 1 / 3, 2 / 3, and full voltage (VBAT), each state corresponds to a specific voltage value. This allows the MCU chip circuit to determine the current battery status through simple voltage sampling, reducing complex logic judgment and improving detection reliability and stability. Since only a single status pin is required, MCU I / O pins can be saved, which is particularly advantageous in small MCUs with limited space in atomizer devices. Furthermore, the voltage-divider resistor network is simple in design and low in cost, making the entire circuit highly cost-effective. In some embodiments, the present application also provides an atomizer device including the charging management device described in any of the above embodiments.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A charging management device for monitoring the charging status of an atomizing device, characterized in that: include: A state controller circuit, the state controller circuit being electrically connected to the battery VBAT and the ground GND; The state controller circuit is used to detect the state of the battery VBAT and is configured to output a first indication signal representing a charging state according to the connection state between the state controller circuit and the battery VBAT; The state controller circuit includes a state pin, and the state controller circuit is configured to adjust the connection state between the state controller circuit and the battery VBAT according to the charging state of the battery VBAT, thereby changing the first indication signal, and output the first indication signal through the state pin; The MCU chip circuit is electrically connected to the status pin, and the MCU chip circuit obtains the first indication signal and determines the current charging status of the atomization device according to the first indication signal.

2. The charging management device according to claim 1, wherein: The status pins include at least one status pin, and the status pin is configured to represent different first indication signals by outputting different voltages.

3. The charging management device according to claim 2, wherein: The state pins include a state pin 1 and a state pin 2, and the state pin 1 and the state pin 2 respectively output a high level or a low level corresponding to the connection state between the state controller circuit and the battery VBAT; The first indication signal includes: the status pin 1 and the status pin 2 both output a high level; the status pin 1 outputs a high level; the status pin 2 outputs a low level; the status pin 1 outputs a low level and the status pin 2 outputs a high level; the status pin 1 and the status pin 2 both output a low level.

4. The charging management device according to claim 3, wherein: The four first indication signals respectively represent uncharged, charging, fully charged, and overvoltage protection.

5. The charging management device according to claim 2, wherein: The status pin includes a status foot. The status controller circuit has multiple connection points with the battery VBAT. The status foot outputs different voltage values corresponding to different connection states with the battery VBAT to represent different charging states.

6. The charging management device according to claim 3, wherein: The state controller circuit further includes a pull-up resistor R1, a pull-up resistor R2, a field effect transistor Q1, a field effect transistor Q2 and a state controller; One end of the pull-up resistor R1 is connected to the battery VBAT, and the other end is connected to the drain of the field effect transistor Q1 and the status pin 1; One end of the pull-up resistor R2 is connected to the battery VBAT, and the other end is connected to the drain of the field effect transistor Q2 and the status pin 2; The gate of the field effect transistor Q1 is connected to the state controller, and the source of the field effect transistor Q1 is connected to the ground GND; the gate of the field effect transistor Q2 is connected to the state controller, and the source of the field effect transistor Q2 is connected to the ground GND.

7. The charging management device according to claim 6, characterized in that: When the state controller detects that the battery VBAT is not connected to the charging circuit, it controls the field effect transistor Q1 and the field effect transistor Q2 to be in a closed state, so that the status pin 1 and the status pin 2 both output a high level; When the state controller detects that the voltage of the battery VBAT is rising and the charging current is flowing to the battery VBAT, it controls the field effect transistor Q1 to be in a closed state and the field effect transistor Q2 to be in a closed state, so that the state pin 1 outputs a low level and the state pin 2 outputs a high level; When the state controller detects that the voltage of the battery VBAT reaches the threshold indicating a fully charged state and the charging current decreases to a current threshold range indicating a fully charged state, the state controller controls the field effect transistor Q1 to be in an on state and the field effect transistor Q2 to be in an off state, so that the state pin 1 outputs a high level and the state pin 2 outputs a low level; When the state controller detects that the voltage of the battery VBAT exceeds a safety threshold, the state controller controls the field effect transistor Q1 and the field effect transistor Q2 to be in an on state, so that the state pin 1 and the state pin 2 both output a low level.

8. The charging management device according to claim 5, wherein: The state controller circuit further includes a voltage dividing resistor R3, a voltage dividing resistor R4, a voltage dividing resistor R5 and a state controller; The battery VBAT, the voltage dividing resistor R3, the voltage dividing resistor R4, the voltage dividing resistor R5, and the ground GND are connected in series in sequence; The connection points are provided between the battery VBAT and the voltage-dividing resistor R3, between the voltage-dividing resistor R3 and the voltage-dividing resistor R4, between the voltage-dividing resistor R4 and the voltage-dividing resistor R5, and between the voltage-dividing resistor R5 and the ground GND. The state controller controls the state pin to connect with any one of the connection points.

9. The charging management device according to claim 8, characterized in that: The connection point is connected to the state controller, and the state controller is connected to the single state pin via an output terminal; The state controller monitors the battery VBAT and switches a connection point connected to the output terminal according to a state of the battery VBAT.

10. The charging management device according to claim 8, wherein: When the state controller detects that the battery VBAT is not connected to the charging circuit, controlling the connection point between the voltage-dividing resistor R5 and the GND to be connected to the output end; When the state controller detects that the voltage of the battery VBAT exceeds a safety threshold, the state controller controls the connection point between the battery VBAT and the voltage-dividing resistor R3 to be connected to the output end; When the state controller detects that the voltage of the battery VBAT is rising and the charging current is flowing to the battery VBAT, When the state controller detects that the voltage of the battery VBAT reaches the threshold value representing a fully charged state and the charging current decreases to the current threshold range representing a fully charged state, The connection point between the voltage-dividing resistor R3 and the voltage-dividing resistor R4 is controlled to be connected to the output end, or the connection point between the voltage-dividing resistor R4 and the voltage-dividing resistor R5 is controlled to be connected to the output end.

11. The charging management device according to claim 8, wherein: The voltage-dividing resistor R3 , the voltage-dividing resistor R4 , and the voltage-dividing resistor R5 have the same resistance value.

12. Atomization equipment, characterized in that, The charging management device comprises the charging management device according to any one of claims 1 to 11.

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