Backup power communication protection circuit, battery box and atomizing device

Abstract

This application relates to the field of atomization equipment technology, and discloses a backup power communication protection circuit, a battery box, and an atomization device. The backup power communication protection circuit includes a first voltage regulator module, a second voltage regulator module, and a voltage matching module. The first terminal of the voltage matching module receives a first control signal, and the second terminal of the voltage matching module receives a second control signal. When the voltage matching module receives the first control signal, it makes the level of the output signal the same as the level of the first control signal. When the voltage matching module receives the second control signal, it makes the level of the output signal the same as the level of the second control signal. This technical solution, by setting the voltage matching module, can automatically turn on or off according to the control signal state, so that the output level of the signal terminal is consistent with the input signal, avoiding sampling errors or logic failures at the low voltage end.

Description

Technical Field

[0001] This utility model relates to the field of atomizing equipment technology, and in particular to a backup power communication protection circuit, a battery box, and an atomizing device. Background Technology

[0002] As a new type of portable electronic product, atomizing devices have been widely used in the field of heated non-combustible products. To improve user experience and extend usage time, some atomizing devices have adopted a detachable design, separating the atomizing module from the backup power supply box. This allows users to extend power supply, display status, and adjust power via the backup power supply when the atomizing module is insufficient. In existing technologies, the atomizing module and backup power supply are usually connected automatically via a magnetic structure, and the physical contact between power, electrical signals, and ground is completed through copper pillar contacts. Communication signals mainly rely on single-wire serial communication (UART) between MCUs, typically using three sets of copper pillars: positive power (VIN), ground (GND), and serial signal (TX / RX). However, because the supply voltages of the atomizing module and backup power supply are often inconsistent, the operating voltages of the two MCUs may also differ, leading to level mismatch problems during communication. Especially when communicating directly through MCU I / O ports, if the lower voltage side receives an insufficient signal level, problems such as inaccurate signal sampling, logical misjudgment, or communication interruption can easily occur. Utility Model Content

[0003] This utility model provides a backup power communication protection circuit, a battery box, and an atomizing device to solve the above-mentioned technical problems.

[0004] A first aspect of this utility model provides a backup power communication protection circuit for an atomizing device, the backup power communication protection circuit comprising:

[0005] The first voltage regulator module, one end of which is connected to the power output terminal of the backup power communication protection circuit, and the output terminal of the first voltage regulator module and the power supply power supply are connected together.

[0006] The second voltage regulator module, one end of which is connected to the ground terminal of the backup power communication protection circuit, and the other end of the first voltage regulator module are connected together.

[0007] A voltage matching module, wherein the first end of the voltage matching module and the other end of the second voltage regulator module are connected together as the signal terminal of the backup power communication protection circuit to receive a first control signal, and the second end of the voltage matching module receives a second control signal;

[0008] When the voltage matching module receives the first control signal, it is in an on or off state according to the level state of the first control signal, so that the level state of the output signal is the same as the level state of the first control signal.

[0009] When the voltage matching module receives the second control signal, it is in an on or off state according to the level state of the second control signal, so that the level state of the output signal is the same as the level state of the second control signal.

[0010] Optionally, the voltage matching module includes a switch module and a first resistor. The first terminal of the switch module is the first terminal of the voltage matching module. The control terminal of the switch module and one terminal of the first resistor are connected together to receive a high-level signal. The second terminal of the switch module and the other terminal of the first resistor are connected together to form the second terminal of the voltage matching module.

[0011] Optionally, the switching module is an NMOS transistor, the drain of the NMOS transistor is the first terminal of the switching module, the source of the NMOS transistor is the second terminal of the switching module, and the gate of the NMOS transistor is the control terminal of the switching module.

[0012] Optionally, the backup power communication protection circuit further includes a second resistor, one end of which is the signal terminal of the backup power communication protection circuit, and the other end of which is connected to the other end of the second voltage regulator module and the first end of the voltage matching module.

[0013] Optionally, both the first voltage regulator module and the second voltage regulator module are transient voltage suppression diodes.

[0014] A second aspect of this utility model provides a battery box for an atomizing device. The battery box includes the backup power communication protection circuit and a first control module as described in the first aspect. The first control module provides a second control signal to the voltage matching module.

[0015] Optionally, the battery box further includes a first battery that provides a high-level signal to the voltage matching module.

[0016] A third aspect of this utility model provides an atomizing device, which includes a battery box and an atomizing module as described in the second aspect. The power input terminal of the atomizing module is connected to the power output terminal of the backup power communication protection circuit, the ground terminal of the atomizing module is connected to the ground terminal of the backup power communication protection circuit, and the signal terminal of the atomizing module is connected to the signal terminal of the backup power communication protection circuit.

[0017] Optionally, the atomizing module includes a third voltage regulator module, a fourth voltage regulator module, a charging management module, a second battery, and a second control module. One end of the third voltage regulator module and one end of the charging management module are connected to the power input terminal of the atomizing module. The other end of the charging management module is connected to the second battery. The other end of the third voltage regulator module and one end of the fourth voltage regulator module are connected to the ground terminal of the atomizing module. The other end of the fourth voltage regulator module and the signal terminal of the second control module are connected to the signal terminal of the atomizing module.

[0018] Optionally, the atomizing module further includes a third resistor, one end of which is the signal terminal of the atomizing module, and the other end of which is connected to the other end of the fourth voltage regulator module and the signal terminal of the second control module.

[0019] The technical effects of this utility model embodiment are as follows: By setting a first voltage regulator module and a second voltage regulator module, stable power supply reference voltage and ground reference potential are provided respectively. By setting a voltage matching module, signal level compatibility and conversion between different power supply systems can be achieved. The voltage matching module automatically turns on or off according to the control signal state, so that the output level of the signal terminal is consistent with the input signal, realizing level-compatible communication between MCUs of different voltage platforms. This technical solution not only ensures the accuracy of signal transmission and avoids sampling errors or logic failures at low voltage terminals, but also effectively prevents device damage caused by high voltage levels directly acting on low voltage I / O ports. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the first structure of a backup power communication protection circuit provided in Embodiment 1 of this utility model;

[0022] Figure 2 This is a schematic diagram of the second structure of a backup power communication protection circuit provided in Embodiment 1 of this utility model;

[0023] Figure 3 This is a schematic diagram of the third structure of a backup power communication protection circuit provided in Embodiment 1 of this utility model;

[0024] Figure 4 This is a schematic diagram of the first structure of the battery box of an atomizing device provided in Embodiment 2 of this utility model;

[0025] Figure 5 This is a schematic diagram of a second structure of the battery box of an atomizing device provided in Embodiment 2 of this utility model;

[0026] Figure 6 This is a schematic diagram of the structure of an atomizing device provided in Embodiment 3 of this utility model;

[0027] Figure 7 This is a schematic diagram of the first structure of the atomizing module of an atomizing device provided in Embodiment 3 of this utility model;

[0028] Figure 8 This is a schematic diagram of the second structure of the atomizing module of an atomizing device provided in Embodiment 3 of this utility model;

[0029] Figure 9 This is a circuit diagram of the battery box of an atomizing device provided in Embodiment 3 of this utility model;

[0030] Figure 10 This is a circuit diagram of the atomizing module of an atomizing device provided in Embodiment 3 of this utility model;

[0031] In the diagram: 101, First voltage regulator module; 102, Power supply; 103, Second voltage regulator module; 104, Voltage matching module; 105, Second resistor; 106, First control module; 107, First battery; 141, Switch module; 142, First resistor; 200, Atomization module; 201, Third voltage regulator module; 202, Fourth voltage regulator module; 203, Charging management module; 204, Second battery; 205, Second control module; 206, Third resistor. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0033] It should be understood that this invention can be embodied in various forms and should not be construed as being limited to the embodiments set forth herein. Rather, providing these embodiments will make the disclosure thorough and complete, and will fully convey the scope of this invention to those skilled in the art. In the drawings, for clarity, the dimensions of layers and regions, as well as their relative dimensions, may be exaggerated. The same reference numerals denote the same elements throughout.

[0034] It should be understood that when an element or layer is referred to as "on," "adjacent to," "connected to," or "coupled to" other elements or layers, it may be directly on, adjacent to, connected to, or coupled to other elements or layers, or there may be intervening elements or layers. Conversely, when an element is referred to as "directly on," "directly adjacent to," "directly connected to," or "directly coupled to" other elements or layers, there are no intervening elements or layers. It should be understood that although the terms first, second, third, etc., may be used to describe various elements, components, areas, layers, and / or portions, these elements, components, areas, layers, and / or portions should not be limited by these terms. These terms are only used to distinguish one element, component, area, layer, or portion from another element, component, area, layer, or portion. Therefore, without departing from the teachings of this utility model, the first element, component, area, layer, or portion discussed below may be referred to as the second element, component, area, layer, or portion.

[0035] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. When used herein, the singular forms “a,” “an,” and “the” are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising” and / or “including,” when used in this specification, identify the presence of the stated features, integers, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups. When used herein, the term “and / or” includes any and all combinations of the associated listed items.

[0036] To fully understand this utility model, detailed structures and steps will be presented in the following description to illustrate the technical solution proposed by this utility model. Preferred embodiments of this utility model are described in detail below; however, in addition to these detailed descriptions, this utility model may have other embodiments.

[0037] Example 1

[0038] This embodiment provides a backup power communication protection circuit for an atomizing device, such as... Figure 1 As shown, the backup power supply communication protection circuit includes:

[0039] The first voltage regulator module 101, one end of which is connected to the power output terminal A1 of the backup power communication protection circuit, and the output terminal of the first voltage regulator module 101 and the power supply 102 are connected together.

[0040] The second voltage regulator module 103, one end of which is connected to the ground terminal A2 of the backup power communication protection circuit, and the other end of the first voltage regulator module 101 are connected together.

[0041] The voltage matching module 104 has its first terminal and the other terminal of the second voltage regulator module 103 connected together to the signal terminal A3 of the backup power communication protection circuit to receive the first control signal. The second terminal of the voltage matching module 104 receives the second control signal.

[0042] When the voltage matching module 104 receives the first control signal, it is in an on or off state according to the level state of the first control signal, so that the level state of the output signal is the same as the level state of the first control signal.

[0043] When the voltage matching module 104 receives the second control signal, it is in an on or off state according to the level state of the second control signal, so that the level state of the output signal is the same as the level state of the second control signal.

[0044] The first voltage regulator module 101 converts the higher voltage (e.g., 5V or higher) output from the power supply 102 into a stable operating voltage required by the backup power communication protection circuit. Its output terminal serves as the power output terminal A1 of the backup power communication protection circuit, providing a stable high-level signal to subsequent circuits (e.g., the atomizing module 200). The second voltage regulator module 103 forms a stable ground terminal for the circuit, together with the first voltage regulator module 101, constituting the power system of the backup power communication protection circuit. One end is connected to the output ground wire of the first voltage regulator module 101, forming the circuit's ground terminal. This improves the stability of the circuit's reference to ground, helps suppress ground potential shift, and enhances anti-interference capabilities, especially in environments where magnetic copper pillars can be touched, thus improving anti-interference and ESD capabilities. The voltage matching module 104 is used to achieve level compatibility and communication protection between the backup power supply and the MCU of the atomization module 200; the first end is connected to the other end of the second voltage regulator module 103 as the signal input terminal of the circuit, receiving the first control signal (such as serial port TX) output from the atomization module 200 or other devices; the second end receives the second control signal (e.g., control logic in the RX direction) output by the MCU inside the backup power supply; according to the state of the first or second control signal, it controls its internal switch (such as MOSFET) to be in the on or off state, thereby realizing level conversion (bridging signals between MCUs with different power supplies); signal clamping protection (low-level active clamping to prevent missampling); protection against accidental touch, electrostatic discharge, and burnout. The voltage matching module 104 can adopt a MOSFET level clamping structure design, specifically implemented as follows: when the first control signal or the second control signal is high, the MOSFET is in the off state; when the first control signal or the second control signal is low, the MOSFET is turned on, and the communication line is quickly clamped to a low level, ensuring reliable pull-down of the control signal; since the voltage matching module 104 is designed with level following logic, its signal terminal can maintain the same level state as any input control signal, realizing level synchronization between reception and output. The voltage matching module 104 can also have the following structures: 1. A bidirectional level converter chip structure, which integrates level detection and automatic control circuits, enabling bidirectional communication between the two I / O terminals under different operating voltages; it can automatically follow the level change of the input terminal to keep the output level consistent, meeting the requirement that the received and output signal levels are the same. 2. An optocoupler isolation and pull-up resistor structure, where the input terminal is connected to the input side of the optocoupler, and the output terminal is connected to the power supply through a pull-up resistor from the output collector of the optocoupler; when the control signal is low, the optocoupler is turned on, and the output is pulled low; when the control signal is high, the optocoupler is turned off, and the output is pulled high, realizing consistent logic level output. 3. The dual-MOS symmetrical complementary structure consists of a PMOS transistor and an NMOS transistor. The source of the PMOS transistor is connected to a high level, the source of the NMOS transistor is grounded, and the two drains are connected together for the output. The gate controls the input level. When the level is high, the NMOS transistor is turned on and the PMOS transistor is turned off, and the output is low; when the level is low, the opposite is true.

[0045] The workflow of this embodiment is as follows: During the operation of the atomizing device, when the backup power communication protection circuit and the atomizing module 200 are connected through a magnetic attraction structure, the backup power communication protection circuit starts to work; the first voltage regulator module 101 outputs a stable power supply voltage; the second voltage regulator module 103 provides a reliable grounding reference to maintain consistent level signal logic; the voltage matching module 104 automatically switches between on / off states according to the control signal status from different MCUs to achieve consistent communication levels and directional compatibility, while also having functions such as voltage matching, current limiting protection, and anti-static interference.

[0046] The technical advantages of this embodiment are as follows: by setting a first voltage regulator module and a second voltage regulator module, stable power supply reference voltage and ground reference potential are provided respectively. By setting a voltage matching module, signal level compatibility and conversion between different power supply systems can be achieved. The voltage matching module automatically turns on or off according to the control signal state, so that the output level of the signal terminal is consistent with the input signal, realizing level-compatible communication between MCUs of different voltage platforms. This technical solution not only ensures the accuracy of signal transmission and avoids sampling errors or logic failures at low voltage terminals, but also effectively prevents device damage caused by high voltage levels directly acting on low voltage I / O ports.

[0047] As one implementation method, such as Figure 2 As shown, the voltage matching module 104 includes a switch module 141 and a first resistor 142. The first end of the switch module 141 is the first end of the voltage matching module 104. The control end of the switch module 141 and one end of the first resistor 142 are connected together to receive a high-level signal. The second end of the switch module 141 and the other end of the first resistor 142 are connected together to form the second end of the voltage matching module 104.

[0048] The switching module 141 can be an electronic switching device with turn-on / turn-off capability, such as an N-channel MOSFET. The drain of the NMOS transistor is the first terminal of the switching module 141, the source is the second terminal, and the gate is the control terminal. Its main function is to control the signal line level based on the received control signal level. When a high-level control signal is received, the NMOS transistor is turned off, and the signal terminal is kept high through the first resistor 142. When a low-level control signal is received, the NMOS transistor is turned on, and the signal terminal is quickly clamped to a low level. This achieves level control of the signal line, ensuring accurate transmission of communication signals even in systems with incompatible voltages. One end of the first resistor 142 is connected to the control terminal of the switching module 141 to receive the high-level signal; the other end is connected to the power output terminal to provide a pull-up level, i.e., the default high-level signal. The first resistor 142 acts as a pull-up resistor, and its function includes pulling the signal line to a stable high level when there is no control signal pulling it low. With the cooperation of the switch module 141 and the first resistor 142, the voltage matching module 104 has the following functions: the level of the signal line is always consistent with the input of the control terminal; it automatically completes the switching of the high / low level of the communication line under different control signal states; and it prevents high voltage from directly entering the low voltage controller when the system voltage is inconsistent.

[0049] The technical advantage of this embodiment is that by setting the switch module 141 and the first resistor 142, effective level control and protection of the communication signal line can be achieved; when the control terminal inputs a high level, the first resistor 142 pulls the communication line up to a stable high level; when the control terminal is at a low level, the switch module 141 is turned on, quickly pulling the communication line low, thereby achieving accurate transmission of the communication signal.

[0050] As one implementation method, such as Figure 3 As shown, the backup power communication protection circuit also includes a second resistor 105. One end of the second resistor 105 is the signal terminal of the backup power communication protection circuit, and the other end of the second resistor 105 is connected to the other end of the second voltage regulator module 103 and the first end of the voltage matching module 104, respectively.

[0051] When the atomizing module 200 is reverse-connected during user operation due to incorrect orientation or improper insertion / removal (e.g., the power supply terminal is mistakenly connected to the communication terminal), the signal terminal may momentarily experience abnormally high voltage or be pulled into an abnormal state. In this case, the second resistor 105, acting as a current-limiting device in the signal transmission path, can effectively limit the erroneous current from entering the voltage matching module 104; prevent transient high voltage or reverse current from being directly applied to the second control module 205 (e.g., the MCU's communication port); thereby preventing damage to the communication port of the second control module 205 and achieving fault-tolerant protection under reverse connection conditions.

[0052] The technical advantage of this embodiment is that by connecting a second resistor 105 in series between the signal terminal and the ground wire, the risk of hardware damage caused by reverse connection of the atomizing module 200 is avoided, thereby enhancing the security and reliability of the communication process.

[0053] In one implementation, both the first voltage regulator module 101 and the second voltage regulator module 103 are TVS (Transient Voltage Suppression) diodes.

[0054] The first voltage regulator module 101 is located between the output terminal of the power supply 102 in the communication protection circuit and the ground wire. It operates in a high-impedance state, not affecting normal power supply. When external voltage spikes (such as surges generated during insertion / removal) or electrostatic discharge cause the voltage to exceed the clamping threshold of the TVS diode, the TVS diode quickly conducts, discharging excess energy to the ground wire. The second voltage regulator module 103 is located between the ground terminal of the communication circuit and the signal copper pillar. It is used to absorb transient static electricity discharged to ground through the communication pins (such as the TX / RX copper pillars) and simultaneously improve the potential stability of the entire signal reference ground.

[0055] The technical advantage of this embodiment is that by setting both the first voltage regulator module 101 and the second voltage regulator module 103 as TVS diodes, transient high voltage caused by electrostatic discharge or voltage surge can be effectively absorbed during the connection between the backup power supply and the atomizing device, preventing damage to the communication line, power line and controller port. This embodiment greatly improves the anti-interference capability of the system and the electrical safety of the interface, and is especially suitable for high-risk usage scenarios such as multiple plugging and unplugging, magnetic connection and user-touchable copper pillars, ensuring stable and reliable communication and power supply.

[0056] Example 2

[0057] This second embodiment provides a battery box for an atomizing device, such as... Figure 4 As shown, it includes the backup power communication protection circuit and the first control module 106 provided in Embodiment 1. The first control module 106 provides a second control signal to the voltage matching module 104.

[0058] The first control module 106 is the main control unit within the battery box, typically an MCU or a processor chip with communication control functions. The first control module 106 provides a second control signal to the voltage matching module 104 through its communication interface, which is used to control the on and off states of the voltage matching module 104.

[0059] The first control module 106 serves as the logic control core of the system. It drives the switching behavior of the voltage matching module 104 through the second control signal, thereby ensuring that the communication signal line maintains the same level as the internal control logic of the battery box throughout the entire process of plugging, unplugging, use, and transmission, achieving the comprehensive goals of stable communication, anti-interference, and protection.

[0060] As one implementation method, such as Figure 5 As shown, the battery box also includes a first battery 107, which provides a high-level signal to the voltage matching module 104.

[0061] The first battery 107 in the battery box provides independent power to the entire battery box, and its positive terminal is connected to the voltage matching module 104 to provide a stable high-level reference voltage for communication signals.

[0062] Example 3

[0063] This third embodiment provides an atomizing device, such as... Figure 6 As shown, the atomizing device includes a battery box and an atomizing module 200 provided in Embodiment 2. The power input terminal of the atomizing module 200 is connected to the power output terminal of the backup power communication protection circuit, the ground terminal of the atomizing module 200 is connected to the ground terminal of the backup power communication protection circuit, and the signal terminal of the atomizing module 200 is connected to the signal terminal of the backup power communication protection circuit.

[0064] The power output terminal of the backup power communication protection circuit in the battery box is connected to the power input terminal of the atomization module 200, providing a stable operating voltage for the atomization module 200 to drive internal components such as the MCU, heating wire, and power management module. The first voltage regulator module 101 (such as a TVS or Zener diode) in this path suppresses voltage surges, ensuring a safe and reliable power supply. During insertion, removal, or magnetic connection, it protects the power output from sudden current surges. The ground terminal of the backup power communication protection circuit in the battery box is connected to the ground terminal of the atomization module 200, providing a unified and stable reference ground potential for the entire communication and power supply system. The second voltage regulator module 103 (such as a TVS) ensures that the ground wire can quickly dissipate energy when subjected to electrostatic discharge, improving the overall anti-interference capability and helping to prevent communication logic errors or circuit mis-triggering caused by ground potential drift. The signal terminal of the backup power communication protection circuit in the battery box is connected to the signal terminal of the atomization module 200; it is used for bidirectional transmission of control signals to realize communication coordination between the battery box and the atomization module 200 (such as speed adjustment, display control, and usage status feedback); this communication path is level-converted through the voltage matching module 104 to ensure that the communication signals under different power supply systems remain logically consistent, thereby improving communication reliability and security.

[0065] As one implementation method, such as Figure 7As shown, the atomization module 200 includes a third voltage regulator module 201, a fourth voltage regulator module 202, a charging management module 203, a second battery 204, and a second control module 205. One end of the third voltage regulator module 201 and one end of the charging management module 203 are connected to the power input terminal of the atomization module 200. The other end of the charging management module 203 is connected to the second battery 204. The other end of the third voltage regulator module 201 and one end of the fourth voltage regulator module 202 are connected to the ground terminal of the atomization module 200. The other end of the fourth voltage regulator module 202 and the signal terminal of the second control module 205 are connected to the signal terminal of the atomization module 200.

[0066] The third voltage regulator module 201 regulates the input voltage (e.g., 5V) from the battery box (backup power supply) to provide a stable power output; it also provides a safe operating voltage to the control chip, sensors, display, or atomization heating circuit inside the atomization module 200; and it suppresses power supply noise, voltage surges, and other interference to protect downstream devices. The fourth voltage regulator module 202 stabilizes the ground potential of the signal terminals inside the atomization module 200, improving the accuracy of communication logic judgments; when the signal terminals are subjected to external interference or electrostatic discharge (ESD), this module can quickly clamp or absorb abnormal voltages to protect the controller; it can be constructed from devices such as TVS diodes and Zener diodes to achieve anti-interference, anti-static, and overvoltage protection functions. The charging management module 203 manages the input power from the backup battery box, providing constant current / constant voltage charging to the second battery 204; it enables intelligent charging control of the batteries inside the atomization module 200, with overcharge protection and charging status detection functions; and it ensures power reserves even when the atomization module 200 is operating alone, improving operational flexibility. The second battery 204 stores backup power to provide the atomization module 200 with the ability to continue operating even after a power outage; it supports short-term independent operation of key modules such as atomization heating, MCU control, and display; and it works in conjunction with the charging management module 203 to achieve safe charging management. The second control module 205 controls the working logic of the atomization module 200, including heating control, status uploading, inhalation detection, and display driving; it receives and parses control signals from the battery box to achieve functions such as power adjustment and status synchronization; it sends communication response signals to form a complete two-way communication with the first control module 106; its signal terminals are protected and level referenced by the fourth voltage regulator module 202 to ensure the reliability of data transmission.

[0067] The technical advantages of this embodiment are as follows: By setting a third voltage regulator module 201, a fourth voltage regulator module 202, a charging management module 203, a second battery 204, and a second control module 205 in the atomization module 200, electrical isolation and safe connection in terms of communication, power supply, and grounding are achieved between the atomization module 200 and the battery box; the third voltage regulator module 201 and the fourth voltage regulator module 202 respectively stabilize the voltage of the power input and the signal reference ground, and suppress surges, effectively improving the system's anti-interference and anti-static capabilities; the charging management module 203 works with the second battery 204 to achieve intelligent management of local power supply; the second control module 205 ensures the reliability of communication and functional coordination with the battery box, thereby improving the stability, safety, and intelligent interactive performance of the entire device.

[0068] As one implementation method, such as Figure 8 As shown, the atomizing module 200 also includes a third resistor 206. One end of the third resistor 206 is the signal terminal of the atomizing module 200, and the other end of the third resistor 206 is connected to the other end of the fourth voltage regulator module 202 and the signal terminal of the second control module 205.

[0069] In some cases, when the signal terminal of the atomizing module 200 accidentally comes into contact with an external high-level voltage or the positive terminal of the power supply during insertion, removal, or misconnection, current may directly enter the signal input port of the second control module 205 (such as the RX pin of the MCU), causing breakdown or burnout. By setting the third resistor 206 as a current-limiting element, even if a short circuit or reverse connection occurs, the current will be effectively limited, keeping the transient current entering the MCU within its safe tolerance range, thereby preventing damage to the signal port of the second control module 205. In magnetic or pluggable structures, users may insert the battery box into the atomizing module 200 in the wrong direction or connect it incorrectly, causing the power copper pillar to be accidentally connected to the signal line. Due to the current-limiting characteristics of the third resistor 206, even if the power supply voltage is directly applied to the signal line, a destructive current path will not be formed, thus achieving a hardware-based foolproof design in the structure, improving system fault tolerance and user operation safety.

[0070] The technical effect of this embodiment is that by connecting a third resistor 206 in series in the signal path, current limiting and reverse connection protection functions of the signal current are realized, which significantly improves the electrical safety of the second control module 205 and the anti-interference capability of the whole system.

[0071] The following describes this embodiment through a specific circuit structure: Figure 9 and Figure 10As shown, the first voltage regulator module 101 is a transient voltage suppressor diode ESD1, which is connected to a 5V power supply. The second voltage regulator module 103 is a transient voltage suppressor diode ESD2. The switching module 141 is an NMOS transistor Q1. The first resistor 142 is a resistor R1, the second resistor 105 is a resistor R2, and the NMOS transistor Q1 and resistor R1 form a voltage matching module 104. The third resistor 206 is a resistor R3. The third voltage regulator module 201 is a transient voltage suppressor diode ESD3, and the fourth voltage regulator module 302 is a transient voltage suppressor diode ESD4. A voltage matching module 104 is added between the MCU of the battery box and the MCU of the atomization module 200. When the signal STX / RX output by the MCU communication interface of the atomization module 200 is a high-level signal, the NMOS transistor Q1 is turned off. The first battery 107 in the battery box supplies power to resistor R1, and resistor R1 pulls the signal MTX / RX received by the MCU communication interface of the battery box high. When the STX / RX signal output from the MCU communication interface of the atomization module 200 is low, the body diode of NMOS transistor Q1 is turned on, and the MTX / RX signal received by the battery compartment MCU communication interface is low. Similarly, when the MTX / RX signal sent by the battery compartment MCU communication interface is high, since the power supply level of the battery compartment MCU is the same as that of NMOS transistor Q1, NMOS transistor Q1 is turned off. Because the communication signal MTX / RX of the battery compartment MCU communication interface is initialized to high, the communication signal STX / RX of the MCU communication interface of the atomization module 200 is also high. When the communication signal MTX / RX of the battery compartment MCU communication interface is low, due to the voltage difference between the MTX / RX output from the first battery 107 and the battery compartment MCU, NMOS transistor Q1 is turned on, and the communication signal STX / RX of the MCU communication interface of the atomization module 200 is clamped to low. Thanks to the resistor R3 in the atomization module 200, misaligned contact will not damage the components. The resistance value of R3 is chosen to be greater than the maximum current that the 5V MCU port can withstand. The principle is as follows: the VIN copper post of the battery box directly contacts the TX copper post of the atomization module 200. Due to the effect of resistor R3, the communication signals STX / RX of the MCU communication interface of the atomization module 200 will not be pulled too high, so that the MCU communication interface will not be damaged, thus perfectly realizing hardware foolproofing. Due to the effect of resistor R3, the anti-static capability of the MCU communication port of the atomization module is also greatly improved.

[0072] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. A backup power supply communication protection circuit for an atomizing device, characterized by, The backup power communication protection circuit includes: The first voltage regulator module, one end of which is connected to the power output terminal of the backup power communication protection circuit, and the output terminal of the first voltage regulator module and the power supply power supply are connected together. The second voltage regulator module, one end of which is connected to the ground terminal of the backup power communication protection circuit, and the other end of the first voltage regulator module are connected together. A voltage matching module, wherein the first end of the voltage matching module and the other end of the second voltage regulator module are connected together as the signal terminal of the backup power communication protection circuit to receive a first control signal, and the second end of the voltage matching module receives a second control signal; When the voltage matching module receives the first control signal, it is in an on or off state according to the level state of the first control signal, so that the level state of the output signal is the same as the level state of the first control signal. When the voltage matching module receives the second control signal, it is in an on or off state according to the level state of the second control signal, so that the level state of the output signal is the same as the level state of the second control signal.

2. The backup power supply communication protection circuit of claim 1, wherein, The voltage matching module includes a switch module and a first resistor. The first terminal of the switch module is the first terminal of the voltage matching module. The control terminal of the switch module and one terminal of the first resistor are connected together to receive a high-level signal. The second terminal of the switch module and the other terminal of the first resistor are connected together to form the second terminal of the voltage matching module.

3. The backup power supply communication protection circuit of claim 2, wherein, The switching module is an NMOS transistor, with the drain of the NMOS transistor being the first terminal of the switching module, the source of the NMOS transistor being the second terminal of the switching module, and the gate of the NMOS transistor being the control terminal of the switching module.

4. The backup power supply communication protection circuit of claim 1, wherein, The backup power communication protection circuit also includes a second resistor, one end of which is the signal terminal of the backup power communication protection circuit, and the other end of which is connected to the other end of the second voltage regulator module and the first end of the voltage matching module.

5. The backup power supply communication protection circuit of claim 1, wherein, Both the first voltage regulator module and the second voltage regulator module are transient voltage suppression diodes.

6. A battery case of an atomizing device, characterized by, The battery box includes a backup power communication protection circuit as described in any one of claims 1 to 5 and a first control module, wherein the first control module provides a second control signal to the voltage matching module.

7. The battery pack of claim 6, wherein, The battery box also includes a first battery, which provides a high-level signal to the voltage matching module.

8. An atomising device characterised in that, The atomizing device includes the battery box and atomizing module as described in claim 6 or 7, wherein the power input terminal of the atomizing module is connected to the power output terminal of the backup power communication protection circuit, the ground terminal of the atomizing module is connected to the ground terminal of the backup power communication protection circuit, and the signal terminal of the atomizing module is connected to the signal terminal of the backup power communication protection circuit.

9. The atomizing apparatus of claim 8, wherein The atomizing module includes a third voltage regulator module, a fourth voltage regulator module, a charging management module, a second battery, and a second control module. One end of the third voltage regulator module and one end of the charging management module are connected to the power input terminal of the atomizing module. The other end of the charging management module is connected to the second battery. The other end of the third voltage regulator module and one end of the fourth voltage regulator module are connected to the ground terminal of the atomizing module. The other end of the fourth voltage regulator module and the signal terminal of the second control module are connected to the signal terminal of the atomizing module.

10. The atomizing apparatus of claim 9, wherein The atomizing module also includes a third resistor, one end of which is the signal terminal of the atomizing module, and the other end of which is connected to the other end of the fourth voltage regulator module and the signal terminal of the second control module.

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