Atomization equipment, charging and burning port multiplexing circuit and multiplexing method

Abstract

The invention is suitable for the technical field of atomization, and provides atomization equipment, a charging and burning port multiplexing circuit and a multiplexing method.The charging and burning port multiplexing circuit comprises a first IO port, a second IO port, a third IO port and a switch module, data are transmitted through the first IO port, and data are transmitted through the second IO port; the power supply module charges the charging module through the second IO port and the third IO port; when a burning module is connected, the device can automatically enter a burning mode, a burning signal is transmitted through the first IO port and the second IO port, and common connection of a grounding end is realized through the third IO port; according to the technical scheme, integration of the charging port and the burning port of the atomization equipment is achieved, and the problems that in a traditional scheme, due to the fact that independent ports are used for charging and burning, hardware cost is increased, occupied space is too large, and manufacturing complexity is high are solved.

Description

Technical Field

[0001] This application relates to the field of atomization technology, and particularly to an atomization device, a charging and programming port multiplexing circuit, and a multiplexing method. Background Art

[0002] With the continuous enrichment of the functions of electronic atomization devices, charging and firmware programming have become important links in the operation and maintenance of the devices. In traditional designs, charging and programming usually use separate ports, which not only increases the hardware cost and volume of the atomization device, but also improves the complexity of manufacturing and use. Summary of the Invention

[0003] Embodiments of the present invention provide an atomization device, a charging and programming port multiplexing circuit, and a multiplexing method to solve the problem that in the prior art, charging and programming usually use separate ports, which increases the hardware cost and volume of the atomization device, and improves the complexity of manufacturing and use.

[0004] In a first aspect of the embodiments of the present invention, a charging and programming port multiplexing circuit for an atomization device is provided. The atomization device includes a control module and a charging module. The charging and programming port multiplexing circuit includes:

[0005] A first IO port, which is respectively connected to a first communication end and a first programming end of the control module;

[0006] A second IO port and a switch module, the second IO port is respectively connected to a second programming end of the control module and a first end of the switch module;

[0007] A third IO port, which is respectively connected to a control end of the switch module and an input end of the charging module, and the switch module has a grounding end;

[0008] When the charging and programming port multiplexing circuit is connected to a power supply module, the first IO port is used to transmit data between the power supply module and the control module, the third IO port is used to make the switch module in a conducting state, and the second IO port and the third IO port are used to make the power supply module charge the charging module;

[0009] When the charging and programming port multiplexing circuit is connected to a programming module, the first IO port and the second IO port are used to make the programming module program the control module, the third IO port is used to make the switch module in a cut-off state, and make the grounding end of the charging and programming port multiplexing circuit connected to the grounding end of the programming module.

[0010] Further, the charging and programming port multiplexing circuit further includes:

[0011] A signal output module is connected to the first IO port to output a connection signal to the power supply module through the first IO port when the charging and programming port multiplexing circuit is connected to the power supply module.

[0012] Further, the signal output module includes a first resistor, one end of which is grounded and the other end is connected to the first IO port.

[0013] Further, the charging and programming port multiplexing circuit further includes:

[0014] A unidirectional conduction module, whose input end is grounded and whose output end is connected to the third IO port, to form a unidirectional signal ground loop with the programming module through the third IO port when the charging and programming port multiplexing circuit is connected to the programming module.

[0015] Further, the charging and programming port multiplexing circuit further includes:

[0016] A second resistor, one end of which is connected to the first IO port and the other end is connected to the first communication end of the control module;

[0017] A third resistor, one end of which is connected to the first IO port and the other end is connected to the first programming end of the control module;

[0018] A fourth resistor, one end of which is connected to the second IO port and the other end is connected to the second programming end of the control module.

[0019] Further, the switch module includes a fifth resistor, a sixth resistor and a MOS transistor. One end of the fifth resistor is the control end of the switch module, the other end of the fifth resistor is respectively connected to the gate of the MOS transistor and one end of the sixth resistor. The drain of the MOS transistor is the first end of the switch module, and the source of the MOS transistor and the other end of the sixth resistor are commonly connected as the second end of the switch module.

[0020] A second aspect of the embodiments of the present invention provides an atomization device, including the charging and programming port multiplexing circuit, a control module, a charging module and a battery described in the first aspect, and the charging module is connected to the battery.

[0021] A second aspect of the embodiments of the present invention provides a method for multiplexing a charging and programming port of an atomization device. The atomization device includes a charging and programming port multiplexing circuit, a control module and a charging module. The charging and programming port multiplexing circuit includes:

[0022] A first IO port, which is respectively connected to the first communication end and the first programming end of the control module;

[0023] A second IO port and a switch module, where the second IO port is respectively connected to a second programming terminal of the control module and a first end of the switch module;

[0024] A third IO port, which is respectively connected to a control end of the switch module and an input end of the charging module, and the switch module has a ground end;

[0025] The method for multiplexing the charging and programming ports includes:

[0026] When the charging and programming port multiplexing circuit is connected to a power supply module, data is transmitted between the power supply module and the control module through the first IO port, the switch module is turned on through the third IO port, and the power supply module charges the charging module through the second IO port and the third IO port;

[0027] When the charging and programming port multiplexing circuit is connected to a programming module, the programming module programs the control module through the first IO port and the second IO port, the switch module is turned off through the third IO port, and the ground end of the charging and programming port multiplexing circuit is connected to the ground end of the programming module.

[0028] Further, the transmitting data between the power supply module and the control module through the first IO port includes:

[0029] When the charging and programming port multiplexing circuit is connected to the power supply module and the power supply is completed, a stop charging signal output by the control module is received through the first IO port, and the stop charging signal is output to the power supply module.

[0030] Further, the method for multiplexing the charging and programming ports further includes:

[0031] When the charging and programming port multiplexing circuit is connected to the power supply module, a connection signal is output to the power supply module through the first IO port.

[0032] The technical effects of the embodiments of the present invention are as follows: This technical solution can intelligently identify external connected devices. When connected to the power supply module, it can automatically enter the charging mode, transmit data through the first IO port, and enable the power supply module to charge the charging module through the second IO port and the third IO port; when connected to the programming module, it can automatically enter the programming mode, transmit programming signals through the first IO port and the second IO port, and achieve a common connection of the grounding terminal through the third IO port. This technical solution realizes the integration of the charging port and the programming port of the atomization device, avoiding the problems of increased hardware costs, excessive volume occupation, and high manufacturing complexity caused by using independent ports for charging and programming in the traditional solution. Through port multiplexing and automatic mode switching, the device cost is reduced, the system integration degree is improved, the user experience is optimized, and at the same time, it is ensured that the charging and programming modes do not interfere with each other, improving the stability and security of data transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments of the present invention. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0034] Figure 1 FIG. 1 is a first schematic structural diagram of a charging and programming port multiplexing circuit of an atomization device in Embodiment 1 of the present invention;

[0035] Figure 2 FIG. 2 is a schematic structural diagram of the connection between a charging and programming port multiplexing circuit of an atomization device and a power supply module in Embodiment 1 of the present invention;

[0036] Figure 3 FIG. 3 is a schematic structural diagram of the connection between a charging and programming port multiplexing circuit of an atomization device and a programming module in Embodiment 1 of the present invention;

[0037] Figure 4 FIG. 4 is a second schematic structural diagram of a charging and programming port multiplexing circuit of an atomization device in Embodiment 1 of the present invention;

[0038] Figure 5 FIG. 5 is a circuit diagram of a charging and programming port multiplexing circuit of an atomization device in Embodiment 1 of the present invention;

[0039] Figure 6 FIG. 6 is a circuit diagram of the connection between a charging and programming port multiplexing circuit of an atomization device and a power supply module in Embodiment 1 of the present invention;

[0040] Figure 7 FIG. 7 is a circuit diagram of the connection between a charging and programming port multiplexing circuit of an atomization device and a programming module in Embodiment 1 of the present invention;

[0041] In the figure: 100, a charging and programming port multiplexing circuit; 101, a switching module; 102, a control module; 103, a charging module; 104, a signal output module; 105, a one-way conduction module; 201, a power supply module; 202, a programming module. Specific implementation manners

[0042] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0043] It should be understood that when used in the specification and appended claims of the present invention, unless otherwise specified, the term " / " means "or", for example, A / B may mean A or B; herein, "and / or" is merely a description of the association relationship between associated objects, indicating that three relationships may exist, for example, A and / or B may mean: A exists alone, A and B exist simultaneously, and B exists alone. In addition, in the description of the embodiments of the present application, "a plurality of" means two or more than two.

[0044] In the description of the specification and appended claims of the present invention, the term "comprising" indicates the presence of the described features, wholes, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or their combinations. It should also be understood that the term "and / or" used in the specification and appended claims of the present invention refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0045] In addition, in the description of the specification and appended claims of the present invention, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0046] References to "one embodiment" or "some embodiments" in the description of the present invention mean that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the present invention. Thus, statements such as "in one embodiment", "in some embodiments", "in other some embodiments", "in still other embodiments", etc., which appear in different places in this specification, do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized. The terms "comprising", "including", "having" and their variants mean "including but not limited to", unless otherwise specifically emphasized.

[0047] It should be understood that the magnitudes of the sequence numbers of the steps in the following embodiments do not mean the order of execution, and the execution order of each process should be determined according to its function and internal logic, and should not constitute any limitation to the implementation process of the embodiments of the present invention.

[0048] For the convenience of further understanding of the technical solutions in some embodiments of the present application, the technical solutions of the atomizing device, the charging and programming port multiplexing circuit and the multiplexing method, and how the technical solutions solve the above technical problems will be described in detail below in conjunction with some specific embodiments and the drawings. The embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments.

[0049] In some embodiments, as Figures 1 to 3 shown, a charging and programming port multiplexing circuit 100 for an atomizing device is provided. The atomizing device includes a control module 102 and a charging module 103. The charging and programming port multiplexing circuit 100 includes:

[0050] A first IO port A1, which is respectively connected to the first communication end B1 and the first programming end B2 of the control module 102;

[0051] A second IO port A2 and a switch module 101. The second IO port A2 is respectively connected to the second programming end B3 of the control module 102 and the first end of the switch module 101;

[0052] A third IO port A3, which is respectively connected to the control end of the switch module 101 and the input end of the charging module 103. The switch module 101 has a grounded end;

[0053] When the charging and programming port multiplexing circuit 100 is connected to the power supply module 201, the first IO port A1 is used to transfer data between the power supply module 201 and the control module 102, the third IO port A3 is used to turn on the switch module 101, and the second IO port A2 and the third IO port A3 are used to enable the power supply module 201 to charge the charging module 103;

[0054] When the charging and programming port multiplexing circuit 100 is connected to the programming module 202, the first IO port A1 and the second IO port A2 are used to enable the programming module 202 to program the control module 102, the third IO port A3 is used to turn off the switch module 101, and to connect the ground terminal of the charging and programming port multiplexing circuit 100 to the ground terminal of the programming module 202.

[0055] Among them, the IO port is an input / output port. The first IO port A1 is connected to the first communication end B1 and the first programming end B2 of the control module 102, and is used for data interaction with the external power supply module 201 and supporting the firmware programming function. In the programming mode, the first IO port A1 receives instructions from the programming module 202 and transmits programming data to the control module 102; in the charging mode, the first IO port A1 realizes data interaction between the power supply module 201 and the control module. Among them, when the power supply module 201 is connected to the charging and programming port multiplexing circuit 100, the first IO port is used to output a connection signal so that the power supply module 201 recognizes successful connection; when charging is completed, the first IO port A1 is used to output a stop charging signal to make the power supply module 201 stop charging. The second IO port A2 is connected to the second programming end B3 of the control module 102 and the first end of the switch module 101. In the programming mode, the second IO port A2 receives instructions from the programming module 202 and transmits programming data to the control module 102; in the charging mode, it forms the input end of the charging current loop, and the grounding end of the switch module 101 is connected to the grounding end of the charging module 103 in common ground. The third IO port A3 is connected to the control end of the switch module 101 and the input end of the charging module 103, and serves as the control signal input end of the switch module 101 to control whether the switch module 101 is turned on. In the charging mode, the current of the external power supply module 201 is introduced into the charging module 103 to supply power to the device; in the programming mode, a signal ground loop is formed through the grounding end connection, and the signal grounding end of the charging and programming port multiplexing circuit 100 is connected to the signal grounding end of the control module 102. The switch module 101 is controlled by the third IO port A3 and is selectively turned on or off in different modes. In the charging mode, the switch module 101 is in the on state to form a charging loop, so that the current of the external power supply module 201 flows to the charging module 103; in the programming mode, it is in the off state to avoid the charging current affecting the programming data transmission and ensure the normal transmission of the programming data signal to the control module 102. The control module 102 is the core unit of the atomization device and processes functions such as charging management, programming data transmission, and device operation control. In the charging mode, it detects the charging state, communicates with the power supply module 201 through the first IO port A1, monitors the charging current and battery voltage, and adjusts the charging strategy according to the charging state; controls the battery charging through the charging module 103 to ensure a safe and efficient charging process; protects the battery to prevent abnormal conditions such as overcharging, over-discharging, and overheating. The control module 102 communicates with the power supply module 201 through the first IO port A1 to identify the charging cut-off conditions (such as the current drops to the threshold value and the voltage reaches the set value), and sends a stop charging signal to the power supply module 201 through the first IO port A1 to notify it to turn off the power supply; after receiving the stop charging signal, the power supply module 201 turns off the charging current output to the third IO port A3.In the programming mode, the function of the control module 102 is different from that in the charging mode. It detects whether the programming module 202 is connected, transmits programming data through the first IO port A1 and the second IO port A2, monitors the programming status to ensure firmware integrity, and restarts the device after programming is completed.

[0056] The working process of this technical solution:

[0057] 1. Charging mode: The external power supply module 201 is connected to the charging and programming port. The power supply module 201 provides power, and the third IO port A3 receives voltage to turn on the switch module 101. The positive charging circuit is: power supply module 201, third IO port, charging module 103, battery; the negative charging circuit is: switch module 101, second IO port A2, ground terminal of power supply module 201. The power supply module 201 can communicate with the control module 102 through the first IO port A1. After charging is completed, the control module 102 sends a stop charging signal to the power supply module 201 through the first IO port A1, the power supply module 201 disconnects, and the switch module 101 automatically closes, and the device resumes normal operation.

[0058] 2. Programming mode: The external programming module 202 (such as a programmer) is connected to the charging and programming port. The programming module 202 sends a programming data signal, and the third IO port A3 is a low-level signal to keep the switch module 101 in the off state to prevent the charging current from interfering with the programming process; the programming module 202 transmits programming data to the control module 102 through the first IO port A1 and the second IO port A2; the control module 102 enters the programming mode, receives firmware data and updates the system; after programming is completed, the programming module 202 disconnects, and the device resumes normal operation.

[0059] The technical effect of this embodiment is that it realizes the integration of the charging port and the programming port of the atomizing device, avoids the problems of increased hardware cost, excessive volume occupation and high manufacturing complexity caused by using independent ports for charging and programming in the traditional solution. Through port multiplexing and automatic mode switching, the device cost is reduced, the system integration degree is improved, the user experience is optimized, and at the same time, it is ensured that the charging and programming modes do not interfere with each other, and the stability and security of data transmission are improved.

[0060] As an implementation, as Figure 4 shown, the charging and programming port multiplexing circuit 100 further includes:

[0061] A signal output module 104, which is connected to the first IO port A1 to output a connection signal to the power supply module 201 through the first IO port A1 when the charging and programming port multiplexing circuit 100 is connected to the power supply module 201.

[0062] Among them, when the power supply module 201 is connected to the charging and programming port multiplexing circuit 100, the signal output module 104 sends a connection signal to the power supply module 201 through the first IO port A1, notifying it that the current device has been connected. After receiving this signal, the power supply module 201 can perform corresponding operations, turn on the power supply, enter the charging mode, and establish data communication to obtain device status information.

[0063] As an example, as Figure 5 shown, the signal output module 104 includes a first resistor R1, one end of which is grounded and the other end is connected to the first IO port A1.

[0064] Among them, when the power supply module 201 is not connected, its signal terminal is at a high level. When the power supply module 201 is connected, its signal terminal is pulled down to a low level through the first resistor R1. The power supply module 201 monitors that the signal at the signal terminal changes from high level to low level, recognizes that it has been connected to the charging and programming port multiplexing circuit 100, and triggers corresponding operations (such as entering the charging mode).

[0065] The technical effect of this embodiment is as follows: The intelligent recognition and automatic response of the external power supply module 201 are realized through the signal output module 104; when the power supply module 201 is connected, the signal output module 104 sends a connection signal through the first IO port, enabling the power supply module 201 to automatically turn on the power supply, enter the charging mode, and establish data communication, thereby obtaining device status information and realizing dynamic charging management; this technical solution improves charging efficiency and safety, simplifies the port design, and can complete mode switching without additional operations, enhancing the intelligence and user experience of the device.

[0066] As an embodiment, as Figure 4 shown, the charging and programming port multiplexing circuit 100 further includes:

[0067] A unidirectional conduction module 105, whose input terminal is grounded and whose output terminal is connected to the third IO port A3, to form a unidirectional signal ground loop with the programming module 202 through the third IO port A3 when the charging and programming port multiplexing circuit 100 is connected to the programming module 202.

[0068] Among them, the unidirectional conduction module 105 mainly plays the role of signal ground isolation and unidirectional conduction in the charging and programming port multiplexing circuit 100, ensuring stable data transmission in the programming mode and preventing ground potential conflicts or interference. The input terminal of the unidirectional conduction module 105 is grounded to ensure that its reference potential is ground, and the output terminal is connected to the third IO port A3 to participate in the signal transmission between the programming module 202 and the control module 102. In the programming mode, a unidirectional signal loop is allowed to be formed between the programming module 202 and the control module 102 to ensure correct data transmission.

[0069] The technical effect of this embodiment is as follows: By forming a unidirectional signal ground loop through the unidirectional conduction module 105 in the programming mode, the stable transmission of the programming data signal is ensured, and at the same time, ground potential conflict and ground loop interference are prevented; this module improves the signal integrity and anti-interference ability of the system, thereby enhancing the reliability of the programming process and the stability of the device operation.

[0070] As an embodiment, as Figure 5 shown, the charging and programming port multiplexing circuit 100 further includes:

[0071] A second resistor R2, one end of which is connected to the first IO port A1 and the other end of which is connected to the first communication end of the control module 102;

[0072] A third resistor R3, one end of which is connected to the first IO port A1 and the other end of which is connected to the first programming end of the control module 102;

[0073] A fourth resistor R4, one end of which is connected to the second IO port A2 and the other end of which is connected to the second programming end of the control module 102.

[0074] Among them, one end of the second resistor R2 is connected to the first IO port A1 and the other end is connected to the first communication end of the control module 102, preventing the direct connection between the first IO port and the control module 102, avoiding damage to the communication port by excessive current, limiting the signal current, preventing signal overshoot, and improving the stability of data transmission. One end of the third resistor R3 is connected to the first IO port A1 and the other end is connected to the first programming end of the control module 102, preventing the programming data signal current from being too large and affecting the data transmission stability between the programming module 202 and the control module 102. One end of the fourth resistor R4 is connected to the second IO port A2 and the other end is connected to the second programming end of the control module 102, preventing the sudden current from damaging the programming port and avoiding signal interference between the programming module 202 and the control module 102.

[0075] The technical effect of this embodiment is as follows: Through the current limiting and signal stabilizing effects of the second resistor R2, the third resistor R3, and the fourth resistor R4, the communication port and the programming port are effectively protected, and damage to the control module 102 caused by excessive current is prevented. At the same time, these resistors limit the signal current, prevent signal overshoot, improve the stability of data transmission, ensure the signal integrity between the programming module 202 and the control module 102, and avoid interference effects.

[0076] As an embodiment, as Figure 5As shown, the switch module 101 includes a fifth resistor R5, a sixth resistor R6, and a MOS transistor Q1. One end of the fifth resistor R5 is the control end of the switch module 101. The other end of the fifth resistor R5 is connected to the gate of the MOS transistor Q1 and one end of the sixth resistor R6 respectively. The drain of the MOS transistor Q1 is the first end of the switch module 101. The source of the MOS transistor Q1 and the other end of the sixth resistor R6 are commonly connected as the second end of the switch module 101.

[0077] Among them, the gate of the MOS transistor Q1 controls the on and off of the MOS transistor Q1 and is protected by the fifth resistor R5 against overcurrent. The drain of the MOS transistor Q1 serves as the first end of the switch module 101 and is connected to the second IO port A2. The source of the MOS transistor Q1 and the second end of the switch module 101 are commonly grounded to control the on and off of the current loop. When the gate voltage is higher than the threshold value, the MOS transistor Q1 is turned on, enabling the charging current to be transmitted through the switch module 101. When the gate voltage is lower than the threshold value, the MOS transistor Q1 is turned off, cutting off the signal path to prevent mode conflicts. The fifth resistor R5 limits the current provided by the third IO port A3 to the gate of the MOS transistor Q1 to prevent the control signal from overshooting and damaging the MOS transistor Q1. The sixth resistor R6 enables the MOS transistor Q1 to be turned on through voltage division.

[0078] As Figure 6 shown, the control module 102 is an MCU. The CHECK signal of the power supply module 201 is default high level. When the charging and programming port multiplexing circuit 100 is connected to the power supply module 201, the first IO port A1 is connected to the pin MPIN1 of the power supply module 201, and the CHECK signal is pulled low by the first resistor R1. The power supply module 201 recognizes that the charging and programming port multiplexing circuit 100 is connected. The power supply module 201 outputs a charging voltage to the third IO port A3 through the pin MPIN3, and the MOS transistor Q1 is turned on, grounding the second IO port A2. At this time, the power supply module 201, the pin MPIN3 of the power supply module 201, the third IO port A3, the charging module 103, and the battery 106 form a positive charging loop, and the MOS transistor Q1, the second IO port A2, the pin MPIN2 of the power supply module 201, and the power supply module 201 form a negative charging loop. When the MCU detects the completion of charging, it outputs a stop charging signal to the power supply module 201 through the first IO port A1. The power supply module 201 receives the stop charging signal, and the pin MPIN3 outputs an interruption.

[0079] As Figure 7As shown in the figure, when the charging and programming port multiplexing circuit 100 is connected to the programming module 202, the programming module 202, the pin MPIN1 of the programming module 202, the first IO port A1, the third resistor R3, and the MCU form a first programming data signal channel, and the programming module 202, the pin MPIN2 of the programming module 202, the second IO port A2, the third resistor R4, and the MCU form a second programming data signal channel. The diode D1, the third IO port A3, the pin MPIN3 of the programming module 202, and the programming module 202 form a signal ground loop.

[0080] Embodiment 2

[0081] This Embodiment 2 provides an atomizing device, including a charging and programming port multiplexing circuit, a control module, a charging module, and a battery as provided in Embodiment 1, and the charging module is connected to the battery.

[0082] Among them, the control module manages the charging, programming, data communication, and normal operation of the atomizing device to ensure the stability and reliability of the system. The control module establishes communication with the power supply module through the first IO port to obtain device status information (such as battery power, charging status, etc.), monitors the battery voltage and current, controls the charging process, optimizes the charging strategy, and after charging is completed, sends a stop charging signal to the power supply module to avoid overcharging and damaging the battery. The control module communicates with the programming module through the first IO port and the second IO port, receives and writes firmware data, and monitors the programming process to ensure data integrity and prevent device damage caused by programming failure. The charging module charges the battery of the atomizing device. The charging module receives electrical energy from the power supply module and accesses the charging circuit through the third IO port to achieve the charging function.

[0083] This technical solution realizes the multiplexing of the charging and programming ports, ensures independent functions and no interference in different modes, and improves the reliability of the device.

[0084] Embodiment 3

[0085] This Embodiment 3 provides a method for multiplexing the charging and programming ports of an atomizing device. The atomizing device includes a charging and programming port multiplexing circuit, a control module, and a charging module. The charging and programming port multiplexing circuit includes:

[0086] A first IO port, which is respectively connected to the first communication end and the first programming end of the control module;

[0087] A second IO port and a switch module. The second IO port is respectively connected to the second programming end of the control module and the first end of the switch module;

[0088] A third IO port, which is respectively connected to the control end of the switch module and the input end of the charging module. The switch module has a grounding end;

[0089] The method for multiplexing the charging and programming ports includes:

[0090] Step S101, when the charging and programming port multiplexing circuit is connected to the power supply module, data is transmitted between the power supply module and the control module through the first IO port, the switch module is turned on through the third IO port, and the power supply module charges the charging module through the second IO port and the third IO port;

[0091] Step S102, when the charging and programming port multiplexing circuit is connected to the programming module, the programming module programs the control module through the first IO port and the second IO port, the switch module is turned off through the third IO port, and the ground terminal of the charging and programming port multiplexing circuit is connected to the ground terminal of the programming module.

[0092] Among them, in step S101, the charging and programming port multiplexing circuit is connected to the power supply module (such as a USB charger, a power adapter), and the device establishes data communication with the power supply module through the first IO port, for example, transmits information such as the charging status; the third IO port receives a high-level signal to turn on the switch module, and the electric energy of the power supply module can be transmitted to the charging module through the charging circuit. The power supply module provides electric energy to the charging module through the second IO port and the third IO port, and the charging module charges the battery. At the same time, the control module monitors the charging status to prevent overcharging or overcurrent. In step S102, the charging and programming port multiplexing circuit is connected to the programming module (such as a programmer, a firmware upgrade device), the first IO port and the second IO port establish a data channel between the programming module and the control module, the programming module transmits firmware data to the control module through these ports, and the control module writes it into the memory (such as Flash). The third IO port outputs a low level to turn off the switch module and adjusts the signal ground loop to ensure that the signal grounds of the programming module and the control module are the same, avoiding data transmission errors caused by ground potential differences.

[0093] This technical solution realizes the multiplexing of the charging and programming ports, intelligently switches the modes, ensures that the functions do not interfere with each other, and improves the reliability and integration of the device.

[0094] As an implementation, transmitting data between the power supply module and the control module through the first IO port includes:

[0095] When the charging and programming port multiplexing circuit is connected to the power supply module and the power supply is completed, the first IO port receives the stop charging signal output by the control module and outputs the stop charging signal to the power supply module.

[0096] Among them, the control module continuously monitors the charging status of the battery, detects whether the battery voltage reaches the set charging cut-off voltage (such as 4.2V). When the charging meets the cut-off condition, the control module terminates the charging. The control module sends a stop charging signal to the power supply module through the first IO port. After receiving the stop charging signal, the power supply module immediately stops outputting current to the third IO port and disconnects the charging circuit.

[0097] As an implementation, the charging and programming port multiplexing method further includes:

[0098] When the charging and programming port multiplexing circuit is connected to the power supply module, a connection signal is output to the power supply module through the first IO port.

[0099] Among them, when the charging and programming port multiplexing circuit is connected to the power supply module, it is necessary to identify the connection status of the power supply module and notify the power supply module that it has been connected to start the charging process.

[0100] By transmitting the connection signal through the first IO port, the device can successfully complete the handshake with the power supply module, enter the charging mode, and support intelligent charging management, improving the reliability and intelligence of the system.

[0101] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A charging and programming port multiplexing circuit for an atomizing device, characterized in that The atomizing device includes a control module and a charging module. The charging and programming port multiplexing circuit includes: A first IO port, which is respectively connected to the first communication end and the first programming end of the control module; A second IO port and a switch module, the second IO port is respectively connected to the second programming end of the control module and the first end of the switch module; A third IO port, which is respectively connected to the control end of the switch module and the input end of the charging module, and the switch module has a grounding end; When the charging and programming port multiplexing circuit is connected to the power supply module, the first IO port is used to transmit data between the power supply module and the control module, the third IO port is used to make the switch module in a conducting state, and the second IO port and the third IO port are used to make the power supply module charge the charging module; When the charging and programming port multiplexing circuit is connected to the programming module, the first IO port and the second IO port are used to make the programming module program the control module, the third IO port is used to make the switch module in a cut-off state, and make the grounding end of the charging and programming port multiplexing circuit connected to the grounding end of the programming module.

2. The charging and programming port multiplexing circuit according to claim 1, wherein The charging and programming port multiplexing circuit further includes: A signal output module, which is connected to the first IO port to output a connection signal to the power supply module through the first IO port when the charging and programming port multiplexing circuit is connected to the power supply module.

3. The charging and programming port multiplexing circuit according to claim 2, wherein The signal output module includes a first resistor, one end of which is grounded and the other end is connected to the first IO port.

4. The charging and programming port multiplexing circuit according to claim 1, wherein The charging and programming port multiplexing circuit further includes: A unidirectional conduction module, whose input end is grounded and whose output end is connected to the third IO port to form a unidirectional signal ground loop with the programming module through the third IO port when the charging and programming port multiplexing circuit is connected to the programming module.

5. The charging and programming port multiplexing circuit according to any one of claims 1 to 4, characterized in that, The charging and programming port multiplexing circuit further includes: A second resistor, one end of which is connected to the first IO port and the other end is connected to the first communication end of the control module; A third resistor, one end of which is connected to the first IO port and the other end is connected to the first programming end of the control module; A fourth resistor, one end of which is connected to the second IO port and the other end is connected to the second programming end of the control module.

6. The charging and programming port multiplexing circuit according to any one of claims 1 to 4, characterized in that The switch module includes a fifth resistor, a sixth resistor and a MOS transistor. One end of the fifth resistor is the control end of the switch module, the other end of the fifth resistor is respectively connected to the gate of the MOS transistor and one end of the sixth resistor. The drain of the MOS transistor is the first end of the switch module, and the source of the MOS transistor and the other end of the sixth resistor are commonly connected as the second end of the switch module.

7. An atomization device, characterized in that, Including the charging and programming port multiplexing circuit, control module, charging module and battery according to any one of claims 1-6, and the charging module is connected to the battery.

8. A method for multiplexing a charging and programming port of an atomization device, characterized in that, The atomizing device includes a charging and programming port multiplexing circuit, a control module and a charging module. The charging and programming port multiplexing circuit includes: A first IO port, which is respectively connected to the first communication end and the first programming end of the control module; A second IO port and a switch module, the second IO port is respectively connected to the second programming end of the control module and the first end of the switch module; A third IO port, which is respectively connected to the control end of the switch module and the input end of the charging module, and the switch module has a grounding end; The charging and programming port multiplexing method includes: When the charging and programming port multiplexing circuit is connected to the power supply module, data is transmitted between the power supply module and the control module through the first IO port, the switch module is turned on through the third IO port, and the power supply module charges the charging module through the second IO port and the third IO port; When the charging and programming port multiplexing circuit is connected to the programming module, the programming module programs the control module through the first IO port and the second IO port, the switch module is turned off through the third IO port, and the grounding end of the charging and programming port multiplexing circuit is connected to the grounding end of the programming module.

9. The charging and programming port multiplexing method according to claim 8, wherein The transmitting data between the power supply module and the control module through the first IO port includes: When the charging and programming port multiplexing circuit is connected to the power supply module and the power supply is completed, the stop charging signal output by the control module is received through the first IO port and the stop charging signal is output to the power supply module.

10. The charging and programming port multiplexing method according to claim 8, wherein The charging and programming port multiplexing method further includes: When the charging and programming port multiplexing circuit is connected to the power supply module, a connection signal is output to the power supply module through the first IO port.

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