Output control circuit compatible with multi-core atomization bomb, detection method and atomizer

Abstract

The embodiment of the invention provides an output control circuit compatible with a multi-core atomization bomb, and the circuit comprises a power module which provides a working voltage; the execution module comprises a first operation area and a second operation area, and each operation area is composed of a driving unit and a detection unit; the interface module is used for being connected with an external atomization bomb, and the interface module is electrically connected with the first operation area and the second operation area; the control module is electrically connected with the interface module, the execution module and the power supply module respectively; the control module is configured to obtain the access state of the interface module detected by the detection unit; judging whether the accessed atomization bomb is a single-core atomization bomb or a double-core atomization bomb according to the access state of the interface module; when the connected atomization bomb is a single-core atomization bomb, the driving unit in the area corresponding to the single-core atomization bomb is controlled to work, and electrification of the single-core atomization bomb is completed; when the connected atomization bomb is a double-core atomization bomb, the driving units of the first operation area and the second operation area are controlled to work at the same time, and electrification of the double-core atomization bomb is completed.

Description

TECHNICAL FIELD

[0001] The embodiment of the application relates to the technical field of circuit control, in particular to an output control circuit compatible with multi-core atomization cartridges, a detection method and an atomizer. BACKGROUND

[0002] With the development of electronic cigarette technology, atomization cartridges with different numbers of heating wires (atomization cores) are appeared in the market, mainly including single-core atomization cartridges and double-core atomization cartridges. The single-core atomization cartridge has simple structure and low cost; the double-core atomization cartridge can provide greater smoke volume and richer taste through the work of double heating wires.

[0003] In the prior art, the control rod for providing power supply for the atomization cartridge has a special circuit scheme, which only supports a single type of atomization cartridge, and users need to purchase different control rods according to the type of the atomization cartridge. Although the control rod compatible with multi-core atomization cartridges appears in the market, it needs to be additionally provided with a switching circuit and a device for manual selection, or to be realized through a detection chip, which increases the complexity of operation and hardware cost. SUMMARY

[0004] The technical problem to be solved by the embodiment of the application is to provide an output control circuit compatible with multi-core atomization cartridges, to solve the technical problem of complex operation and high use cost of the control circuit compatible with multi-core atomization cartridges.

[0005] To solve the above technical problem, the embodiment of the application adopts the following technical scheme: an output control circuit compatible with multi-core atomization cartridges, comprising: a power module, which provides working voltage for the control circuit; an execution module, which comprises a first running area and a second running area, and each of the running areas is composed of a driving unit and a detection unit; an interface module, which is used for accessing an external atomization cartridge, and the interface module is electrically connected with the first running area and the second running area respectively; a control module, which is electrically connected with the interface module, the execution module and the power module respectively; The control module is configured to: acquire the access state of the interface module detected by the detection unit of the first running area and the second running area; According to the access state of the interface module, it is judged whether the accessed atomization cartridge is a single-core atomization cartridge or a double-core atomization cartridge; When the accessed atomization cartridge is a single-core atomization cartridge, the driving unit of the first running area or the second running area corresponding to the single-core atomization cartridge is controlled to work, to complete the power-on of the single-core atomization cartridge; When the accessed atomizing bullet is a double-core atomizing bullet, the drive units of the first operation area and the second operation area are controlled to work, and the double-core atomizing bullet is energized.

[0006] Further, the safety module is further included, The safety module is electrically connected with the first operation area and the second operation area of the execution module and the control module respectively, and is used for maintaining the off state of each drive unit in a non-working state and performing current limiting protection on the detection port of the control module.

[0007] Further, the safety module includes a first protection module and a second protection module corresponding to the first operation area and the second operation area respectively; The protection module includes: The off protection unit is connected to the control end of the drive unit of the corresponding operation area, and is used for biasing the drive unit in an off state when there is no control signal; The current limiting unit is connected in series between the detection unit output of the corresponding operation area and the detection input port of the control module; The pull-down unit is connected between the output negative pole of the corresponding operation area and the reference ground.

[0008] Further, the detection unit is a pull-up resistor, one end of the pull-up resistor is connected to the positive pole of the power module, and the other end is connected to the positive output end of the corresponding output port of the interface module.

[0009] Further, the drive unit of the first operation area and the second operation area includes a PMOS tube and an NMOS tube, the source of the PMOS tube is connected to the positive pole of the power supply, and the drain thereof is used as the output end of the drive unit, the drain of the NMOS tube is connected to the output backflow end of the drive unit, and the source thereof is connected to the reference ground.

[0010] Further, the off protection unit includes a first bias resistor and a second bias resistor, the first bias resistor is connected between the positive pole of the power supply and the gate of the PMOS tube of the corresponding operation area, and the second bias resistor is connected between the gate of the NMOS tube of the corresponding operation area and the reference ground. The current limiting unit is a resistor connected in series between the detection node of the corresponding operation area and the detection input port of the control module; The pull-down unit is a resistor connected between the output negative pole of the corresponding operation area and the reference ground.

[0011] Further, the interface module includes a first output port and a second output port connected to the drive unit output end and the detection node of the first operation area and the second operation area respectively.

[0012] Further, the output port comprises a positive output end and a negative output end, the positive output end simultaneously serving as a power output end of a driving unit in a corresponding operation area and a detection node of a detection unit, and the negative output end is electrically connected with a backflow end of the driving unit in the corresponding operation area and a pull-down unit of a safety module.

[0013] To solve the above further technical problems, the embodiment of the present application also adopts the following technical solution: a detection method of an output control circuit compatible with multi-core atomization cartridges, comprising the following steps: S1, access port; S2, read interface access state; S3, logical judgment and identification of atomization cartridge type; When the identified atomization cartridge type is A1, single-core atomization cartridge, enter A2, activate first operation area or second operation area circuit work; When the identified atomization cartridge type is B1, double-core atomization cartridge, enter B2, activate first operation area and second operation area circuit work at the same time; When the identified atomization cartridge type is C1, no atomization cartridge, enter C2, standby off.

[0014] To solve the above further technical problems, the embodiment of the present application also adopts the following technical solution: an atomizer comprising a circuit board, wherein the circuit board is provided with an output control circuit compatible with multi-core atomization cartridges as described above.

[0015] By adopting the above technical solution, the embodiment of the present application has at least the following beneficial effects: the embodiment of the present application automatically identifies the type of the accessed atomization cartridge by means of modular symmetrical design and passive detection, and controls the corresponding operation area to work, thereby realizing automatic compatibility of single-core and double-core atomization cartridges, and simultaneously having the advantages of high safety and low cost. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a structural block diagram of a combined state of an optional embodiment of the present application.

[0017] Figure 2 is a safety module connection structural block diagram of an optional embodiment of the present application.

[0018] Figure 3 is a first protection module structural block diagram of another optional embodiment of the present application.

[0019] Figure 4 is a second protection module structural block diagram of an optional embodiment of the present application.

[0020] Figure 5 is an interface module structural block diagram of still another optional embodiment of the present application.

[0021] Figure 6is a circuit structure diagram of another optional embodiment of the present application.

[0022] Figure 7 is a method flow step schematic diagram of an optional embodiment of the present application. DETAILED DESCRIPTION

[0023] The present application will be further described below in conjunction with the drawings and specific embodiments. It should be understood that the following illustrative embodiments and descriptions are only used to explain the present application and are not intended to limit the present application, and the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0024] As shown in the drawings, Figures 1-6 An optional embodiment of the present application provides an output control circuit compatible with multi-core atomization cartridges, specifically comprising the following parts: Power module 2: In this embodiment, it is usually a built-in battery, the positive electrode of which is marked as BAT+, and the negative electrode is a reference ground GND, which provides working voltage for the entire control circuit.

[0025] Execution module 1: In this embodiment, the execution module 1 contains two circuit structures completely symmetrical running areas: the first running area 1A and the second running area 1B.

[0026] The first running area 1A is composed of a driving unit 11A and a detection unit 12A, and the driving unit 11A is composed of a PMOS tube Q1 and an NMOS tube Q3. The source of Q1 is connected to BAT+, and the drain is used as the power output end of this area. The drain of Q3 is connected to the output backflow end of this area. The detection unit 12A is composed of a pull-up resistor R1, one end of which is connected to BAT+, and the other end is connected to the drain of Q1.

[0027] The second running area 1B is composed of a driving unit 11B and a detection unit 12B, and the driving unit 11B is composed of a PMOS tube Q2 and an NMOS tube Q4, which are connected in a symmetrical manner with the first running area 1A. The detection unit 12B is composed of a pull-up resistor R4, one end of which is connected to BAT+, and the other end is connected to the drain of Q2.

[0028] The PMOS tube is turned on when the gate is low, and the NMOS tube is turned on when the gate is high.

[0029] Interface module 3: In this embodiment, the interface module 3 includes a first output port 31 and a first output port 32, which are usually physical pads or contacts, used for connecting the heating wire pins of the atomization cartridge.

[0030] The first output port 31 includes a positive output end VOUT+ and a negative output end VOUT-, the VOUT+ is connected with the detection node Q1 drain of the first operating area; the VOUT- is connected with the output backflow end Q3 drain of the first operating area.

[0031] The second output port 32 includes a positive output end VOUT2+ and a negative output end VOUT2-, the VOUT+2 is connected with the detection node Q2 drain of the second operating area; the VOUT2- is connected with the output backflow end Q4 drain of the second operating area.

[0032] The control module 4: In the embodiment, the control module 4 is a low-power single-chip microcomputer (MCU) with analog / digital input and output capabilities, and includes a detection input port and a control output port.

[0033] The detection input port is two analog or digital input ports AIN-OUT and AIN-OUT2, which are connected to the corresponding detection nodes through current limiting resistors R3 and R6 respectively, and the control output port is PWM-EN, PWM-EN- and PWM-EN2, PWM2-EN- which respectively control Q1, Q3 of the first operating area and Q2, Q4 of the second operating area. The PMOS tube is turned on when the gate is low, and the NMOS tube is turned on when the gate is high.

[0034] The safety module 5: In the embodiment, the safety module 5 is integrated in the circuit wiring, and is divided into a first protection module 5A and a second protection module 5B corresponding to the two operating areas.

[0035] The first protection module 5A includes a shutdown protection unit 51A, a current limiting unit 52A, and a pull-down unit 53A.

[0036] The second protection module 5B includes a shutdown protection unit 51B, a current limiting unit 52B, and a pull-down unit 53B.

[0037] In the embodiment, for the first operating area 1A: The shutdown protection unit 51A includes a first bias resistor R2 and a second bias resistor R8, the resistor R2 is connected between BAT+ and the Q1 gate, and the resistor R8 is connected between the Q3 gate and GND.

[0038] When the MCU port is in a high resistance state or is not initialized, R2 pulls the Q1 gate high to BAT+ to turn it off, and R8 pulls the Q3 gate low to GND to turn it off.

[0039] The current limiting unit 52A is a resistor R3 connected in series between the detection node and the detection input port of the control module 4, for limiting the current flowing into the MCU analog input pin, and playing a protection role.

[0040] The pull-down unit 53A is a resistor R7 connected between the output negative pole VOUT- and the reference ground GND, for providing a determined GND potential for the output negative pole when the atomizing cartridge is not connected, and cooperating with the pull-up resistor R1 to form a detection current path when the atomizing cartridge is connected.

[0041] In the embodiment, for the second operating region IB: The shutdown protection unit 51B includes a first bias resistor R5 and a second bias resistor R10.

[0042] The resistor R5 is connected between BAT+ and CTRL2_H (Q2 gate), and the resistor R10 is connected between CTRL2_L (Q4 gate) and GND.

[0043] When the MCU port is in a high resistance state or is not initialized, R5 pulls the Q2 gate high to BAT+ to turn it off, and R10 pulls the Q4 gate low to GND to turn it off.

[0044] The current limiting unit 52B is a resistor R6 connected in series between the detection node and the detection input port of the control module 4, for limiting the current flowing into the MCU analog input pin, and playing a protection role.

[0045] The pull-down unit 53B is a resistor R9 connected between the output negative pole VOUT2- and GND, for providing a determined GND potential for the output negative pole when the atomizing cartridge is not connected, and cooperating with the pull-up resistor R4 to form a detection current path when the atomizing cartridge is connected.

[0046] In combination Figure 6 , the working process of the circuit is as follows: System power-on initialization: the MCU starts, sets PWM-EN and PWM-EN2 to high to turn off Q1 and Q2, sets PWM-EN- and PWM2-EN- to low to turn off Q3 and Q4. All power switches are in the off state.

[0047] Load detection: the MCU continuously or periodically reads the levels of the AIN1 and AIN2 ports.

[0048] When the Q1 drain and Q2 drain are pulled up to BAT+ by R1 and R4, AIN-OUT and AIN-OUT2 are detected as high, and no load is connected.

[0049] When the single-core atomization cartridge is connected to the first output port 31, the heating wire is connected between VOUT+ and VOUT-. When the Q1 drain is pulled low to near GND potential through the heating wire and the pull-down resistor R7, AIN-OUT is detected as low, and AIN-OUT2 is still high.

[0050] When the single-core atomization cartridge is connected to the second output port 32, the heating wire is connected between VOUT2+ and VOUT2-. When the Q2 drain is pulled low to near GND potential through the heating wire and the pull-down resistor R9, AIN-OUT2 is detected as low, and AIN-OUT is still high.

[0051] When the double-core atomization cartridge is connected to the first output port 31 and the second output port 32, respectively, and the user connects the two ends of the heating wire of the cartridge to VOUT+ / VOUT2+ and VOUT- / VOUT2-, respectively, the Q1 drain and the Q2 drain are both pulled low, and AIN-OUT and AIN-OUT2 are detected as high.

[0052] On the other hand, as Figure 7 shown, the embodiment of the present application also provides a detection method of an output control circuit compatible with multi-core atomization cartridges, including the following steps: S1, connecting the port; S2, reading the interface connection state; S3, logical judgment and identification of the atomization cartridge type; When the atomization cartridge type is identified as A1, a single-core atomization cartridge; enter A2, activate the first operating area or the second operating area circuit to work; When the atomization cartridge type is identified as B1, a double-core atomization cartridge; enter B2, activate the first operating area and the second operating area circuit to work simultaneously; When the atomization cartridge type is identified as C1, no atomization cartridge; enter C2, standby off.

[0053] On the other hand, the embodiment of the present application also provides an atomizer, including a circuit board, wherein the circuit board is provided with the output control circuit compatible with multi-core atomization cartridges as described above.

[0054] If the functions described in the embodiments of the present application are realized in the form of software function modules or units and sold or used as independent products, they can be stored in a computer readable storage medium. Based on this understanding, the part of the prior art or the part of the technical solution of the embodiments of the present application that makes contributions to the prior art can be embodied in the form of a software product, which is stored in a storage medium and includes a number of instructions for causing a computer (which can be a personal computer, a server, a mobile computing device or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM, Read-Only Memory), a random access memory (RAM, Random Access Memory), a magnetic disk or an optical disk, and various media that can store program codes. In the present specification, the embodiments are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts of each embodiment can be referred to each other.

[0055] The embodiments of the present application are described above in combination with the drawings, but the present application is not limited to the above specific embodiments, and the above specific embodiments are only illustrative and not restrictive. Those skilled in the art can make many forms under the inspiration of the present application without departing from the purpose of the present application and the scope protected by the claims, which are all within the protection scope of the present application.

Claims

1. An output control circuit compatible with multi-core atomizing bullets, characterized in that, The application relates to an atomizer, which comprises the following modules: a power module, which provides working voltage for a control circuit; an execution module, which comprises a first running area and a second running area, and each of the running areas is composed of a driving unit and a detection unit; an interface module, which is used for accessing an external atomizing bullet, and the interface module is electrically connected with the first running area and the second running area respectively; a control module, which is electrically connected with the interface module, the execution module and the power module respectively; the control module is configured to acquire the access state of the interface module detected by the detection unit of the first running area and the second running area; according to the access state of the interface module, it is judged whether the accessed atomizing bullet is a single-core atomizing bullet or a double-core atomizing bullet; when the accessed atomizing bullet is a single-core atomizing bullet, the driving unit of the first running area or the second running area corresponding to the single-core atomizing bullet is controlled to work, and the single-core atomizing bullet is powered on; when the accessed atomizing bullet is a double-core atomizing bullet, the driving units of the first running area and the second running area are simultaneously controlled to work, and the double-core atomizing bullet is powered on. The application further comprises a safety module, which is electrically connected with the first running area and the second running area of the execution module and the control module, is used for maintaining the cutoff state of each driving unit in a non-working state, and performs current-limiting protection on the detection port of the control module. The safety module comprises a first protection module and a second protection module corresponding to the first running area and the second running area respectively. Each of the protection modules comprises: a shutdown protection unit, which is connected to the control end of the driving unit of the corresponding running area, and is used for biasing the driving unit in a shutdown state when there is no control signal; a current-limiting unit, which is connected in series between the output of the detection unit of the corresponding running area and the detection input port of the control module; a pull-down unit, which is connected between the negative output of the corresponding running area and a reference ground. The detection unit is a pull-up resistor, one end of the pull-up resistor is connected to the positive pole of the power module, and the other end is connected to the positive output end of the corresponding output port of the interface module. The driving unit of the first running area and the second running area each comprises a PMOS tube and an NMOS tube, the source of the PMOS tube is connected to the positive pole of the power module, the drain of the PMOS tube serves as the output end of the driving unit, the drain of the NMOS tube is connected to the output backflow end of the driving unit, and the source of the NMOS tube is connected to the reference ground.

2. The output control circuit for a compatible multi-cartridge aerosolizing cartridge of claim 1, wherein, The shutdown protection unit comprises a first biasing resistor and a second biasing resistor, the first biasing resistor is connected between the positive pole of the power module and the gate of the PMOS tube of the corresponding running area, and the second biasing resistor is connected between the gate of the NMOS tube of the corresponding running area and the reference ground. The current-limiting unit is a resistor connected in series between the detection node of the corresponding running area and the detection input port of the control module.

3. The output control circuit for a compatible multi-cartridge aerosolizing cartridge of claim 2, wherein, The pull-down unit is a resistor connected between the negative output of the corresponding running area and the reference ground. The interface module comprises a first output port and a second output port, which are respectively connected with the output end of the driving unit and the detection node of the first running area and the second running area. ​ ​ ​ 4. The output control circuit for a compatible multi-cartridge aerosolizing cartridge of claim 3, wherein, ​ 5. The output control circuit for a compatible multi-cartridge aerosolizing cartridge of claim 4, wherein, ​ 6. The output control circuit for a compatible multi-cartridge aerosolizing cartridge of claim 4, wherein, ​ ​ ​ 7. The output control circuit for a compatible multi-cartridge aerosolizing cartridge of claim 6, wherein, ​ 8. The output control circuit for a compatible multi-cartridge aerosolizing cartridge of claim 7, wherein, The output port comprises a positive output end and a negative output end, the positive output end simultaneously serving as a power output end of a driving unit and a detection node of a detection unit in a corresponding operation area, and the negative output end is electrically connected with a backflow end of the driving unit in the corresponding operation area and a pull-down unit of a safety module.

9. A detection method of an output control circuit compatible with a multi-core aerosolizing cartridge, the method comprising: determining whether the output control circuit is compatible with the multi-core aerosolizing cartridge based on a number of cores of the multi-core aerosolizing cartridge. The method comprises the following steps: S1, accessing a port; S2, reading an interface access state; S3, logically judging and identifying an aerosol cartridge type; When the aerosol cartridge type is identified as A1, a single-core aerosol cartridge; Enter A2, activate a first operation area or a second operation area circuit to work; When the aerosol cartridge type is identified as B1, a double-core aerosol cartridge; enter B2, activate the first operation area and the second operation area circuit to work simultaneously; When the aerosol cartridge type is identified as C1, a non-aerosol cartridge; enter C2, standby off.

10. An atomizer comprising a circuit board, characterized in that, The circuit board is provided with an output control circuit compatible with the multi-core aerosol cartridges according to the above claims 1-8.

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