A power mode switching circuit and dual energy supply atomization device

Abstract

The utility model discloses a power supply mode switching circuit and double energy supply's atomization device, power supply mode switching circuit includes: host computer power supply, host computer power supply circuit, smoke bullet power, smoke bullet power supply circuit and atomization circuit, one end of host computer power supply circuit is connected with host computer power supply, the other end of host computer power supply circuit is connected with atomization circuit, one end of smoke bullet power supply circuit is connected with smoke bullet power, the other end of smoke bullet power supply circuit is connected with atomization circuit. The utility model discloses through setting up host computer power supply circuit and smoke bullet power supply circuit, when one of the power is exhausted, atomization device selects another power supply for the atomizer power supply and can continue to use through switching power supply source, need not immediately connect the charging line and power supply, break through the traditional single energy dependence, improve the endurance of atomization device and use convenience, solve the energy anxiety problem of user.

Description

Technical Field

[0001] This utility model relates to the field of atomization equipment technology, and in particular to an atomization device with a power supply mode switching circuit and dual energy supply. Background Technology

[0002] Currently, most atomizing devices in the industry adopt a fixed energy supply design, with a single built-in battery module. Once the battery is depleted, users can only continue inhaling by recharging or connecting a charging cable for power, which significantly limits portability and user experience. Especially in high-intensity usage scenarios, the energy anxiety problem is prominent, making it difficult to meet users' immediate needs.

[0003] Meanwhile, the design of e-cigarette cartridges generally prioritizes cost reduction, increased e-liquid capacity, optimized flavor, and extended lifespan. This results in a significant bias in the allocation of internal space towards the e-liquid tank and atomization structure, while the available space for the battery and PCBA (printed circuit board) control unit is drastically reduced. This design bias leads to the following problems: the built-in battery in the cartridge has a very small capacity due to insufficient space, making it difficult to support continuous use under independent power supply, thus exacerbating the problem of relying on a single energy source. Utility Model Content

[0004] The purpose of this invention is to provide a power supply mode switching circuit and a dual-energy supply atomizing device, which aims to solve the problems of insufficient battery life, portability and significantly limited user experience of existing atomizing devices.

[0005] This utility model embodiment provides a power supply mode switching circuit, including: a host power supply, a host power supply circuit, a cartridge power supply, a cartridge power supply circuit, and an atomizing circuit. One end of the host power supply circuit is connected to the host power supply, and the other end of the host power supply circuit is connected to the atomizing circuit. One end of the cartridge power supply circuit is connected to the cartridge power supply, and the other end of the cartridge power supply circuit is connected to the atomizing circuit.

[0006] Furthermore, the host power supply circuit includes: a first PMOS transistor and a second PMOS transistor, the source of the first PMOS transistor is connected to the host power supply, the drain of the first PMOS transistor is connected to the drain of the second PMOS transistor, the source of the second PMOS transistor is connected to the atomization circuit, and the gates of the first PMOS transistor and the second PMOS transistor are both used to connect to the host control unit.

[0007] Furthermore, the power supply circuit of the cartridge includes a third PMOS transistor and a fourth PMOS transistor. The source of the third PMOS transistor is connected to the power supply of the cartridge, the drain of the third PMOS transistor is connected to the drain of the fourth PMOS transistor Q4, the source of the fourth PMOS transistor Q4 is connected to the atomization circuit, and the gates of the third PMOS transistor and the fourth PMOS transistor are both used to connect to the cartridge control unit.

[0008] This utility model embodiment also provides a dual-energy supply atomizing device, including: a main unit, a cartridge, and the aforementioned power supply mode switching circuit. The main unit power supply and the main unit power supply circuit are disposed in the main unit, and the cartridge power supply, cartridge power supply circuit, and atomizing circuit are disposed in the cartridge. The main unit and the cartridge are electrically connected.

[0009] Furthermore, it also includes a spring pin, through which the main unit and the cartridge are electrically connected.

[0010] Furthermore, the spring pin is provided with a communication signal line, a charging signal line, a power supply line, and a ground negative line. Both ends of the communication signal line, the charging signal line, the power supply line, and the ground negative line are respectively connected to the main unit and the cartridge.

[0011] Furthermore, the main unit and the e-cigarette cartridge are detachably connected.

[0012] Furthermore, it also includes a host control unit, wherein the host power supply and the host power supply circuit are both electrically connected to the host control unit.

[0013] Furthermore, it also includes: a cartridge control unit, wherein the cartridge power supply and the cartridge power supply circuit are both electrically connected to the cartridge control unit.

[0014] Furthermore, the main unit is equipped with a boost circuit, the two ends of which are connected to the main unit power supply and the cartridge power supply, respectively.

[0015] This utility model discloses a power supply mode switching circuit and a dual-energy supply atomizing device. The power supply mode switching circuit includes: a main unit power supply, a main unit power supply circuit, a cartridge power supply, a cartridge power supply circuit, and an atomizing circuit. One end of the main unit power supply circuit is connected to the main unit power supply, and the other end is connected to the atomizing circuit. One end of the cartridge power supply circuit is connected to the cartridge power supply, and the other end is connected to the atomizing circuit. By setting up a main unit power supply circuit and a cartridge power supply circuit, this utility model allows the atomizing device to continue operation when one power source is depleted, simply by switching to the other power source. This eliminates the need for immediate charging, breaking through the traditional reliance on a single energy source, improving the battery life and ease of use of the atomizing device, and solving users' energy anxiety. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A schematic diagram of the power supply system for a prior art atomizing device;

[0018] Figure 2 This is a schematic diagram of the working process of an existing atomizing device;

[0019] Figure 3 This is a schematic diagram of the power supply mode switching circuit in this embodiment;

[0020] Figure 4 This is a schematic diagram of the working process of the atomizing device in this embodiment;

[0021] Figure 5 This is a schematic diagram of the working sub-process of the atomizing device in this embodiment. Detailed Implementation

[0022] 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 protection scope of the present utility model.

[0023] It should be understood that, when used in this specification and the appended claims, the terms “comprising” and “including” indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0024] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0025] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0026] Please see Figure 1 Traditional atomizing devices are powered by two heating wires (i.e., Figure 1 R3 and R4 in the diagram are respectively connected to the power supply (i.e., Figure 1 The resistor is connected to B1+, and a PMOS transistor is placed between each of the two heating wires and the power supply to control the power supply to the resistor.

[0027] Its working principle is as follows: The power supply, PCBA, and heating wire are all connected. When the user uses the device to draw liquid, a negative pressure difference is created, triggering the airflow sensor switch on the PCBA, i.e., the microphone. After the microphone is activated, it outputs an electrical signal to the main control IC (integrated circuit). The main control IC controls the PWM1 and PWM2 I / O ports to output a high level, turning on the MOS transistors D8 and D9. The heating wire is energized, atomizing the liquid and simultaneously controlling the screen's lighting effect through the I / O ports. During drawing liquid, the PCBA detects the input voltage to determine if the power is sufficient. If insufficient, it controls PWM1 and PWM2 not to output a high level, the PMOS transistors cannot turn on, there is no output, and the heating wire is not energized.

[0028] Its power supply process is as follows: the power module starts up, and after the power is connected, the power is transmitted to the control module (PCBA). Then the control module enters the stage of determining whether the power supply is sufficient.

[0029] If the power supply is sufficient, the control module supplies power to the atomizing output unit, driving the heating wire to heat the e-liquid; or simultaneously activates the screen display / light display module (such as power indicator light, breathing light effect); or distributes power to other power-consuming units.

[0030] If the power supply is insufficient, further determine whether to connect to a charger:

[0031] If no charging is connected, start the charging module (e.g., input 5V voltage via Type-C interface) and execute the constant current-constant voltage charging process;

[0032] If charging is connected, the control module determines whether the power supply is sufficient.

[0033] While the power supply circuitry of this traditional atomizing device can meet basic atomization needs to a certain extent, the device has a single built-in battery module. Once the battery is depleted, users can only continue inhaling by charging or connecting a charging cable, significantly limiting portability and user experience. Especially in high-intensity usage scenarios, the device's energy anxiety becomes prominent, making it difficult to meet users' immediate needs.

[0034] To address the aforementioned issues, this embodiment incorporates a main unit power supply circuit and a cartridge power supply circuit. When one power source is depleted, the atomizer can switch to the other power source to continue operation, eliminating the need for immediate charging and overcoming traditional reliance on a single energy source. Details are as follows:

[0035] Please see Figure 3 This embodiment provides a power supply mode switching circuit, including: a main unit power supply B2+, a main unit power supply circuit, a cartridge power supply B1+, a cartridge power supply circuit, and an atomizing circuit. One end of the main unit power supply circuit is connected to the main unit power supply B2+, and the other end of the main unit power supply circuit is connected to the atomizing circuit. One end of the cartridge power supply circuit is connected to the cartridge power supply B1+, and the other end of the cartridge power supply circuit is connected to the atomizing circuit.

[0036] Normally, the cartridge power supply B1+ powers the atomization circuit within the atomizer, heating the heating wire to vaporize the liquid. When the cartridge power supply B1+ is low on power, the main unit power supply B2+ powers the atomization circuit, and the cartridge power supply circuit cuts off the power supply from cartridge power supply B1+ to the atomization circuit.

[0037] This embodiment sets up a main unit power supply circuit and a cartridge power supply circuit so that when one power source is depleted, the atomizing device can continue to be used by switching the power source to the other power source, without having to immediately connect a charging cable. This breaks through the traditional reliance on a single energy source, improves the battery life and ease of use of the atomizing device, and solves the user's energy anxiety problem.

[0038] Furthermore, the host power supply circuit includes: a first PMOS transistor Q1 and a second PMOS transistor Q2. The source of the first PMOS transistor Q1 is connected to the host power supply B2+. The drain of the first PMOS transistor Q1 is connected to the drain of the second PMOS transistor. The source of the second PMOS transistor is connected to the atomization circuit. The gates of the first PMOS transistor Q1 and the second PMOS transistor are both used to connect to the host control unit. That is, the gates of the first PMOS transistor Q1 and the second PMOS transistor are respectively connected to P03 and P04 of the host control unit.

[0039] When P03 and P04 are low, the host power supply B2+ is not powered; when P03 is high and P04 is low, the host power supply B2+ is powered.

[0040] By controlling the gates of the first PMOS transistor Q1 and the second PMOS transistor Q2 through ports P03 and P04 of the host control unit, precise on / off control of the host power supply B2+ can be achieved. When P03 and P04 are both low, both PMOS transistors are cut off, and the power supply path to host power supply B2+ is interrupted, effectively avoiding unnecessary power consumption. When P03 is high and P04 is low, Q1 is turned on, and Q2 can cooperate to form a path according to the circuit design, allowing host power supply B2+ to supply power normally. This precise control method helps improve the energy utilization efficiency of the entire system.

[0041] Furthermore, the cartridge power supply circuit includes: a third PMOS transistor Q3 and a fourth PMOS transistor Q4. The source of the third PMOS transistor Q3 is connected to the cartridge power supply B1+, the drain of the third PMOS transistor Q3 is connected to the drain of the fourth PMOS transistor Q4, the source of the fourth PMOS transistor Q4 is connected to the atomization circuit, and the gates of the third PMOS transistor Q3 and the fourth PMOS transistor are both used to connect to the cartridge control unit. That is, the gates of the third PMOS transistor Q3 and the fourth PMOS transistor are respectively connected to P01 and P02 of the cartridge control unit.

[0042] When P01 is high and P02 is low, the cartridge power supply B1+ is powered. When P01 is low and P02 is low, the cartridge power supply B1+ is not connected.

[0043] By controlling the gates of the third PMOS transistor Q3 and the fourth PMOS transistor Q4 through ports P01 and P02 of the cartridge control unit, precise control of the power supply to the cartridge's power source B1+ can be achieved. When P01 is high and P02 is low, Q3 conducts, and Q4 cooperates to form a circuit, allowing the cartridge's power supply B1+ to operate normally. When both P01 and P02 are low, the two PMOS transistors are cut off, disconnecting the power supply line. This flexible control method allows the cartridge to turn the power on or off as needed, improving the accuracy and flexibility of the power supply.

[0044] In this embodiment, the atomizing circuit includes: a first resistor R1, a second resistor R2, a fifth PMOS transistor Q5, and a sixth PMOS transistor Q6. One end of the first resistor R1 is grounded (GND), and the other end of the first resistor R1 is connected to the source of the fifth PMOS transistor Q5. The drain of the fifth PMOS transistor Q5 is connected to the source of the fourth PMOS transistor Q4 and the source of the second PMOS transistor. The drain of the sixth PMOS transistor Q6 is connected to the source of the fourth PMOS transistor Q4 and the source of the second PMOS transistor. The source of the sixth PMOS transistor Q6 is connected to one end of the second resistor R2, and the other end of the second resistor R2 is grounded (GND).

[0045] When the user performs suction, the two I / O ports PWM1 and PWM2 are controlled to output a high level, which turns on the MOS transistors D3 and D4, energizing the heating wire.

[0046] The first resistor R1 and the second resistor R2 form a voltage divider circuit. This voltage divider structure can regulate and stabilize the voltage in the circuit to a certain extent. For example, when the power supply voltage fluctuates, the voltage divider of R1 and R2 can obtain a relatively stable voltage at the relevant nodes of the fifth PMOS transistor Q5 and the sixth PMOS transistor Q6, ensuring their stable operation.

[0047] This embodiment also provides a dual-energy-supply atomizing device, including: a main unit, a cartridge, and a power supply mode switching circuit as described in the above embodiment. The main unit power supply and main unit power supply circuit are located inside the main unit, and the cartridge power supply, cartridge power supply circuit, and atomizing circuit are located inside the cartridge. The main unit and the cartridge are electrically connected.

[0048] The main unit uses a high-capacity lithium polymer battery, supports fast charging protocols (such as PD3.0), and achieves bidirectional charging and discharging via a Type-C interface. The main unit's power supply circuit integrates a power switching circuit composed of dual PMOS transistors (Q1, Q2). The main control chip (MCU) controls the conduction state of Q1 / Q2 through logic level outputs on pins P03 and P04, realizing the power supply switching between the main unit and external devices. The cartridge power supply uses a miniature lithium-ion battery, supports cyclic charging and discharging, and integrates an overcharge / over-discharge protection chip. The atomization circuit is located inside the atomizer within the cartridge.

[0049] Furthermore, it also includes a spring pin, through which the main unit and the cartridge are electrically connected.

[0050] The spring pin has a certain degree of elasticity, providing stable pressure when the main unit and the cartridge are connected, ensuring tight contact between the electrodes and thus guaranteeing a good electrical connection. This stable contact effectively reduces contact resistance, lowers power loss during transmission, and improves power supply efficiency. When the main unit and the cartridge are electrically connected via the spring pin, the cartridge chip's I / O port is pulled low by the main unit's GND connection, thus recognizing that the main unit has been connected.

[0051] Furthermore, the spring pin contains a communication signal line, a charging signal line, a power supply line, and a ground negative wire. The two ends of the communication signal line, the charging signal line (5V), the power supply line (VCC), and the ground negative wire (GND) are respectively connected to the main unit and the cartridge.

[0052] By integrating the communication signal line, charging signal line, power supply line, and grounding negative wire into the spring pin, the connection between the main unit and the cartridge is made simpler and more compact. This reduces the number and size of the connecting wires, which is beneficial for miniaturization and lightweight design of the product.

[0053] In this embodiment, the main unit and the e-cigarette cartridge are detachably connected.

[0054] Because the main unit and the e-liquid cartridge are detachable, only the faulty part needs to be replaced if one part malfunctions. For example, if the atomizer coil in the cartridge is damaged, the user only needs to purchase a new atomizer coil and replace it in the cartridge, without having to replace the entire device. Compared to products with a one-piece design, the detachable connection significantly reduces maintenance costs and improves the product's cost-effectiveness. The detachable connection allows the main unit and the e-liquid cartridge to be used independently. When the e-liquid cartridge is used independently, the power supply for the e-liquid tank, the indicator lights on the cartridge, and other electrical systems are all powered by the cartridge's power supply. When the main unit is used independently, it can be used as a power bank, enabling charging and discharging.

[0055] In this embodiment, it also includes: a host control unit, and the host power supply and host power supply circuit are both electrically connected to the host control unit.

[0056] The main unit control unit is electrically connected to the main unit power supply circuit, which can precisely control the conduction and cutoff of the PMOS transistor in the main unit power supply circuit, thereby flexibly controlling the power supply of the main unit to the atomizing circuit and other loads, and realizing precise management of the power supply of the entire system.

[0057] In this embodiment, it also includes: a cartridge control unit, and the cartridge power supply and cartridge power supply circuit are both electrically connected to the cartridge control unit.

[0058] By directly obtaining the power status (such as voltage and current) through electrical connection, the cartridge control unit can accurately trigger power supply switching (for example, forcibly switching to host power supply when the battery level is below a threshold) to avoid unexpected power outages.

[0059] In this embodiment, the main unit is equipped with a boost circuit, and the two ends of the boost circuit are connected to the main unit power supply and the cartridge power supply, respectively.

[0060] Both the main unit and the e-liquid cartridge are equipped with charging chips. When the main unit and the e-liquid cartridge are connected, if the e-liquid cartridge does not output a vaping signal to the main unit, the main unit will output 5V voltage to the e-liquid cartridge through a boost circuit to charge the cartridge's power. Charging will stop when the e-liquid cartridge is fully charged or when the cartridge is vaped (the microphone detects negative pressure). The main unit can also be charged via an external Type-C port when it is out of power.

[0061] In this embodiment, the host has a built-in display screen (OLED), which is connected to the host power supply. The display screen can display the power level, power supply mode, and charging status in real time.

[0062] Please see Figure 4 In this embodiment, the atomizing device operates as follows: After the device is powered on, the cartridge power supply is activated first, providing power to the cartridge main controller. Then, the cartridge main controller determines whether the host device is connected.

[0063] If the host is not connected: Maintain power supply to the cartridge, which in turn supplies power to the cartridge control module. The cartridge control module then enters a step to determine if the power supply is sufficient.

[0064] If the power supply is sufficient, the control module supplies power to the atomizing output unit, driving the heating wire to heat the e-liquid; or simultaneously activates the screen display / light display module (such as power indicator light, breathing light effect); or distributes power to other power-consuming units.

[0065] If the host computer is already connected, the system switches to host power supply. Once the host power supply is connected, it powers the host control module, which then determines if the host power supply is sufficient.

[0066] If the main unit has sufficient power, control the main unit power supply to power the cartridge control module;

[0067] If the host power supply is insufficient, the host power supply will be charged through the host charging module.

[0068] For further details, please refer to Figure 5 The specific process of charging the host power supply through the host charging module is as follows:

[0069] The system determines whether a charger is connected via the main unit's charging module. If not connected, the system remains inactive and maintains its current state. If a charger is connected, the main unit's power supply provides power. Power is then transmitted to the main unit's control module. The control module then checks for sufficient power. If insufficient, no further action is taken; if sufficient, power is supplied to the display screen to ensure its proper display of relevant information, and also to other power-consuming units to ensure their normal operation.

[0070] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to in the method section. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

[0071] It should also be noted that, in this specification, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusivity.

[0072] The term "comprises" implies that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprises a..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A power supply mode switching circuit, characterized in that, include: The device includes a main unit power supply, a main unit power supply circuit, a cartridge power supply, a cartridge power supply circuit, and an atomizing circuit. One end of the main unit power supply circuit is connected to the main unit power supply, and the other end of the main unit power supply circuit is connected to the atomizing circuit. One end of the cartridge power supply circuit is connected to the cartridge power supply, and the other end of the cartridge power supply circuit is connected to the atomizing circuit.

2. The power supply mode switching circuit according to claim 1, characterized in that, The host power supply circuit includes a first PMOS transistor and a second PMOS transistor. The source of the first PMOS transistor is connected to the host power supply, the drain of the first PMOS transistor is connected to the drain of the second PMOS transistor, the source of the second PMOS transistor is connected to the atomization circuit, and the gates of the first PMOS transistor and the second PMOS transistor are both used to connect to the host control unit.

3. The power supply mode switching circuit according to claim 1, characterized in that, The cartridge power supply circuit includes a third PMOS transistor and a fourth PMOS transistor. The source of the third PMOS transistor is connected to the cartridge power supply, the drain of the third PMOS transistor is connected to the drain of the fourth PMOS transistor Q4, the source of the fourth PMOS transistor Q4 is connected to the atomization circuit, and the gates of the third PMOS transistor and the fourth PMOS transistor are both used to connect to the cartridge control unit.

4. An atomizing device with dual energy supply, characterized in that, include: The device includes a main unit, a cartridge, and a power supply mode switching circuit as described in any one of claims 1-3, wherein the main unit power supply and the main unit power supply circuit are disposed within the main unit, the cartridge power supply, the cartridge power supply circuit, and the atomizing circuit are disposed within the cartridge, and the main unit and the cartridge are electrically connected.

5. The atomizing device with dual energy supply according to claim 4, characterized in that, Also includes: A spring pin connects the main unit and the cartridge electrically.

6. The atomizing device with dual energy supply according to claim 5, characterized in that, The spring pin contains a communication signal line, a charging signal line, a power supply line, and a ground negative wire. Both ends of the communication signal line, the charging signal line, the power supply line, and the ground negative wire are respectively connected to the main unit and the cartridge.

7. The atomizing device with dual energy supply according to claim 4, characterized in that, The main unit and the e-cigarette cartridge are detachably connected.

8. The atomizing device with dual energy supply according to claim 4, characterized in that, Also includes: The host control unit is electrically connected to both the host power supply and the host power supply circuit.

9. The atomizing device with dual energy supply according to claim 4, characterized in that, Also includes: The cartridge control unit is electrically connected to both the cartridge power supply and the cartridge power supply circuit.

10. The atomizing device with dual energy supply according to claim 4, characterized in that, The main unit is equipped with a boost circuit, and the two ends of the boost circuit are connected to the main unit power supply and the cartridge power supply, respectively.

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