Control circuit of high-power electronic cigarette

Abstract

The utility model provides a control circuit of a high-power electronic cigarette, which is characterized in that the output end of a charging circuit is connected with a power supply, the output end of the power supply is in power supply connection with a voltage-stabilizing power supply circuit and a high-power tobacco tar atomization control circuit, and the output end of the voltage-stabilizing power supply circuit is in power supply connection with a main control circuit of an electronic cigarette main body; the output end of the temperature acquisition circuit is connected with the input end of the electronic cigarette body main control circuit, the output end of the electronic cigarette body main control circuit is connected with the input end of the high-power tobacco tar atomization control circuit, and the output end of the high-power tobacco tar atomization control circuit is in power supply connection with the smoke cartridge atomizer. The input end of the electronic cigarette body main control circuit is further connected with a control key, and the output end of the electronic cigarette body main control circuit is further connected with a display screen. The electronic cigarette has the advantages that the output power of the electronic cigarette can be improved, and the atomization speed of tobacco tar of the electronic cigarette is increased.

Description

Technical Field

[0001] This utility model relates to the field of circuit technology, specifically to a control circuit for a high-power electronic cigarette. Background Technology

[0002] Electronic cigarettes are electronic products that mimic traditional cigarettes, possessing the same appearance, smoke, taste, and feel, and even offering a wider variety of flavors than regular cigarettes. They work by atomizing nicotine and other substances into vapor for users to inhale. Generally, an electronic cigarette consists of three main parts: a cartridge containing the nicotine solution, an vaporizer, and a battery. The atomizer, powered by the battery, transforms the liquid nicotine in the cartridge into vapor, giving the user a sensation similar to smoking.

[0003] Currently, most e-cigarettes on the market consist of a cartridge and the main body. The cartridge typically comprises a non-removable e-liquid tank and an atomizer. The e-liquid in the tank is atomized by the atomizer for the user to inhale. There are currently two main atomization methods: one is heat atomization, which uses a heating coil and a heating mesh to heat and atomize the e-liquid in the tank for inhalation; the other is ultrasonic atomization, where the e-liquid is ultrasonically atomized by the cartridge. Regardless of the atomization method, the atomizer in the cartridge needs to be powered, and the main body of the e-cigarette must contain a main control circuit board and a power supply.

[0004] In existing technologies, due to limitations in form and size, the internal main control circuit board and power supply of e-cigarettes are relatively small, resulting in limited output power, generally not exceeding 50W. The output power of an e-cigarette determines its atomization speed. Due to these power limitations, whether using heating or ultrasonic atomization, the atomization speed of current e-cigarette liquids is generally slow. Furthermore, adding too many functions, such as screen displays or voice control, is not feasible, as excessive features would further hinder the atomization speed and compromise the user experience. Utility Model Content

[0005] To address the problems in the prior art, this utility model provides a control circuit for a high-power electronic cigarette. By incorporating a charging circuit, a voltage stabilizing power supply circuit, a main control circuit for the electronic cigarette body, a high-power e-liquid atomization control circuit, and a temperature acquisition circuit into the control circuit of the high-power electronic cigarette, the output power of the electronic cigarette can be significantly increased, thereby greatly improving the atomization speed of the e-liquid. This solves the problem of slow e-liquid atomization speed caused by the relatively low output power of electronic cigarettes in the prior art.

[0006] This utility model provides a control circuit for a high-power electronic cigarette, including a charging circuit, a voltage stabilizing power supply circuit, a main control circuit for the electronic cigarette body, a high-power e-liquid atomization control circuit, and a temperature acquisition circuit. The output terminal of the charging circuit is connected to a power supply, and the output terminal of the power supply is connected to the voltage stabilizing power supply circuit and the high-power e-liquid atomization control circuit. The output terminal of the voltage stabilizing power supply circuit is connected to the main control circuit for the electronic cigarette body. The output terminal of the temperature acquisition circuit is connected to the input terminal of the main control circuit for the electronic cigarette body, and the output terminal of the main control circuit for the electronic cigarette body is connected to the input terminal of the high-power e-liquid atomization control circuit. The output terminal of the high-power e-liquid atomization control circuit is connected to the cartridge atomizer. The input terminal of the main control circuit for the electronic cigarette body is also connected to a control button, and the output terminal of the main control circuit for the electronic cigarette body is also connected to a display screen. The main control circuit for the electronic cigarette body can control the connection and disconnection between the high-power e-liquid atomization control circuit and the cartridge atomizer based on the trigger information of the control button and the temperature information fed back by the temperature acquisition circuit.

[0007] This utility model is further improved by including a main control chip U8 in the main control circuit of the electronic cigarette body. The main control chip U8 has 48 pins. Pin 11 of the main control chip U8 is connected to the output terminal of the voltage stabilization power supply circuit. Pins 27, 28, and 29 of the main control chip U8 are connected to the input terminal of the high-power e-liquid atomization control circuit. Pins 12, 24, and 48 of the main control chip U8 are connected to the control buttons. Pins 18, 20, and 22 of the main control chip U8 are connected to the display screen. Pin 34 of the main control chip U8 is connected to the output terminal of the temperature acquisition circuit.

[0008] This utility model is further improved in that the high-power e-liquid atomization control circuit includes a field-effect transistor (FET) U9, a field-effect transistor (FET) U10, a field-effect transistor (FET) U11, an inductor L3, a field-effect transistor (FET) U12, a step-down driver chip U15, a boost driver chip U14, and a resistor R48. The step-down driver chip U15 has 8 pins, the boost driver chip U14 has 8 pins, the source of the field-effect transistor U9 is connected to the output terminal of the charging circuit, the gate of the field-effect transistor U9 is connected to the 8th pin of the step-down driver chip U15, the drain of the field-effect transistor U9 is connected to the drain of the field-effect transistor U11 and one end of the inductor L3, the gate of the field-effect transistor U11 is connected to the 5th pin of the step-down driver chip U15, and the other end of the inductor L3 is connected to the drain of the field-effect transistor U10... The drain of the field-effect transistor U12 is connected, the gate of the field-effect transistor U10 is connected to pin 5 of the boost driver chip U14, the gate of the field-effect transistor U12 is connected to pin 8 of the boost driver chip U14, the source of the field-effect transistor U12 is connected to one end of the resistor R48, and the other end of the resistor R48 is connected to the power supply of the atomizer. Pin 1 of the step-down driver chip U15 and pin 1 of the boost driver chip U14 are connected to pin 29 of the main control chip U8. Pin 2 of the step-down driver chip U15 is connected to pin 28 of the main control chip U8, pin 2 of the boost driver chip U14 is connected to pin 27 of the main control chip U8, and the sources of the field-effect transistors U11 and U10 are grounded.

[0009] This utility model is further improved by including a power supply protection chip U2, a resistor R6, a field-effect transistor Q1, an inductor L1, a diode D5, and a resistor R7 in the charging circuit. The power supply protection chip U2 has 6 pins. The 4th pin of the power supply protection chip U2 is connected to the power supply through the resistor R6. The 3rd pin of the power supply protection chip U2 is connected to the input terminal of the voltage regulator circuit and the drain of the field-effect transistor Q1. The source of the field-effect transistor Q1 is connected to one end of the inductor L1. The other end of the inductor L1 is connected to the anode of the diode D5. The cathode of the diode D5 is connected to one end of the resistor R7. The other end of the resistor R7 is connected to the input terminal of the voltage regulator circuit and the source of the field-effect transistor U9.

[0010] This utility model is further improved by including a voltage regulator chip U1, a diode D7, and a diode D10 in the voltage regulated power supply circuit. The voltage regulator chip U1 has three pins. The third pin of the voltage regulator chip U1 is connected to the negative terminals of the diodes D7 and D10. The positive terminal of the diode D7 is connected to the third pin of the power supply protection chip U2. The positive terminal of the diode D10 is connected to the other end of the resistor R7. The second pin of the voltage regulator chip U1 is connected to the eleventh pin of the main control chip U8. The first pin of the voltage regulator chip U1 is grounded.

[0011] In a further improvement of this utility model, the temperature acquisition circuit is provided with a thermistor R16, one end of which is connected to pin 34 of the main control chip U8, and the other end of which is grounded.

[0012] This utility model is further improved in that the main control chip U8 is model BAT32G137GH48FA, and the step-down drive chip U15 and the step-up drive chip U14 are both model NCP81155MNTXG.

[0013] In a further improvement to this utility model, the power supply protection chip U2 is model ETA7014S2G and the voltage regulator chip U1 is model CE6301-3.3V.

[0014] Compared with the prior art, the beneficial effects of this utility model are: it provides a control circuit for a high-power electronic cigarette. By setting up a charging circuit, a voltage stabilizing power supply circuit, a main control circuit for the electronic cigarette body, a high-power e-liquid atomization control circuit, and a temperature acquisition circuit in the control circuit of the high-power electronic cigarette, the main control circuit of the electronic cigarette body can control the on / off connection between the high-power e-liquid atomization control circuit and the e-liquid cartridge atomizer according to the trigger information of the control button and the temperature information fed back by the temperature acquisition circuit. This can significantly improve the output power of the electronic cigarette, thereby significantly improving the atomization speed of the e-liquid. It can also add more small functions to the electronic cigarette. The circuit structure is simple, greatly improving the user experience and solving the problem of slow e-liquid atomization speed caused by the relatively low output power of electronic cigarettes in the prior art. Attached Figure Description

[0015] To more clearly illustrate the solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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 from these drawings without creative effort.

[0016] Figure 1This is a schematic diagram of the control circuit for a high-power electronic cigarette according to the present invention.

[0017] Figure 2 This is a circuit diagram of the main control circuit of the electronic cigarette body of this utility model;

[0018] Figure 3 This is a circuit diagram of the high-power e-liquid atomization control circuit of this utility model;

[0019] Figure 4 This is a circuit diagram of the charging circuit of this utility model;

[0020] Figure 5 This is a circuit diagram of the voltage stabilization power supply circuit of this utility model;

[0021] Figure 6 This is a circuit diagram of the temperature acquisition circuit of this utility model. Detailed Implementation

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein in the specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and accompanying drawings of this invention are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or accompanying drawings of this invention are used to distinguish different objects, not to describe a particular order.

[0023] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the present invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0024] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0025] like Figures 1-6As shown, this utility model provides a control circuit for a high-power electronic cigarette, including a charging circuit, a voltage regulator circuit, a main control circuit for the electronic cigarette body, a high-power e-liquid atomization control circuit, and a temperature acquisition circuit. The output terminal of the charging circuit is connected to a power supply, and the output terminal of the power supply is connected to the voltage regulator circuit and the high-power e-liquid atomization control circuit. The output terminal of the voltage regulator circuit is connected to the main control circuit for the electronic cigarette body. The output terminal of the temperature acquisition circuit is connected to the input terminal of the main control circuit for the electronic cigarette body. The output terminal of the main control circuit for the electronic cigarette body is connected to the input terminal of the high-power e-liquid atomization control circuit. The output terminal of the high-power e-liquid atomization control circuit is connected to the cartridge atomizer. The input terminal of the main control circuit for the electronic cigarette body is also connected to a control button, and the output terminal of the main control circuit for the electronic cigarette body is also connected to a display screen. In this embodiment, the main control circuit of the electronic cigarette can control the on / off connection between the high-power e-liquid atomization control circuit and the cartridge atomizer based on the trigger information of the control button and the temperature information fed back by the temperature acquisition circuit. This can significantly increase the output power of the electronic cigarette, thereby greatly improving the atomization speed of the e-liquid. It can also add more small functions to the electronic cigarette. The circuit structure is simple and greatly improves the user experience.

[0026] like Figure 2 As shown, the main control circuit of the electronic cigarette body includes a main control chip U8, model BAT32G137GH48FA. The main control chip U8 has 48 pins. Pin 11 of the main control chip U8 is connected to the output of the voltage regulator circuit; pins 27, 28, and 29 are connected to the input of the high-power e-liquid atomization control circuit; pins 12, 24, and 48 are connected to the control buttons; pins 18, 20, and 22 are connected to the display screen; and pin 34 is connected to the output of the temperature acquisition circuit. In this embodiment, the main control circuit of the electronic cigarette body is used to control the connection and disconnection between the high-power e-liquid atomization control circuit and the e-liquid cartridge atomizer based on the trigger information of the control buttons and the temperature information fed back by the temperature acquisition circuit, thereby improving the atomization speed of the e-liquid.

[0027] like Figure 3As shown, the high-power e-liquid atomization control circuit includes MOSFETs U9, U10, and U11, inductor L3, MOSFET U12, step-down driver chip U15, boost driver chip U14, and resistor R48. Both step-down and boost driver chips U15 and U14 are NCP81155MNTXG models. Step-down and boost driver chips U15 have 8 pins, and both have 8 pins. The source of MOSFET U9 is connected to the output of the charging circuit, and its gate is connected to pin 8 of step-down driver chip U15. The drain of MOSFET U9 is connected to the drain of MOSFET U11 and one end of inductor L3. The gate of MOSFET U11 is connected to pin 5 of step-down driver chip U15. The other end of circuit 3 is connected to the drain of MOSFET U10 and the drain of MOSFET U12. The gate of MOSFET U10 is connected to pin 5 of boost driver chip U14, and the gate of MOSFET U12 is connected to pin 8 of boost driver chip U14. The source of MOSFET U12 is connected to one end of resistor R48, and the other end of resistor R48 is connected to the power supply of the e-liquid atomizer. Pins 1 of step-down driver chip U15 and pin 1 of boost driver chip U14 are connected to pin 29 of main control chip U8. Pin 2 of step-down driver chip U15 is connected to pin 28 of main control chip U8, and pin 2 of boost driver chip U14 is connected to pin 27 of main control chip U8. The sources of MOSFET U11 and MOSFET U10 are grounded. In this embodiment, the high-power e-liquid atomization control circuit is used to power the e-liquid atomizer according to the control signal of the main control circuit of the electronic cigarette body.

[0028] like Figure 4 As shown, the charging circuit includes a power supply protection chip U2, a resistor R6, a field-effect transistor Q1, an inductor L1, a diode D5, and a resistor R7. The power supply protection chip U2 is an ETA7014S2G with six pins. Pin 4 of U2 is connected to the power supply via resistor R6. Pin 3 of U2 is connected to the input of the voltage regulator circuit and the drain of the field-effect transistor Q1. The source of the field-effect transistor Q1 is connected to one end of the inductor L1, and the other end of the inductor L1 is connected to the anode of the diode D5. The cathode of the diode D5 is connected to one end of the resistor R7, and the other end of the resistor R7 is connected to the input of the voltage regulator circuit and the source of the field-effect transistor U9. In this embodiment, the charging circuit supplies power to the voltage regulator circuit and the high-power e-liquid atomization control circuit.

[0029] like Figure 5As shown, the voltage regulator circuit includes a voltage regulator chip U1, diode D7, and diode D10. Voltage regulator chip U1 is a CE6301-3.3V chip with three pins. Pin 3 of voltage regulator chip U1 is connected to the cathodes of diodes D7 and D10. The anode of diode D7 is connected to pin 3 of power protection chip U2. The anode of diode D10 is connected to the other end of resistor R7. Pin 2 of voltage regulator chip U1 is connected to pin 11 of main control chip U8. Pin 1 of voltage regulator chip U1 is grounded. In this embodiment, the voltage regulator circuit is used to power the main control circuit of the electronic cigarette.

[0030] like Figure 6 As shown, the temperature acquisition circuit includes a thermistor R16. One end of the thermistor R16 is connected to pin 34 of the main control chip U8, and the other end is grounded. In this embodiment, the temperature acquisition circuit is used to collect temperature information at the e-liquid atomization point of the electronic cigarette and feed it back to the main control circuit of the electronic cigarette body.

[0031] As can be seen from the above, this utility model provides a control circuit for a high-power electronic cigarette. By setting up a charging circuit, a voltage stabilizing power supply circuit, a main control circuit for the electronic cigarette body, a high-power e-liquid atomization control circuit, and a temperature acquisition circuit in the control circuit of the high-power electronic cigarette, the main control circuit for the electronic cigarette body can control the on / off connection between the high-power e-liquid atomization control circuit and the e-liquid cartridge atomizer according to the trigger information of the control button and the temperature information fed back by the temperature acquisition circuit. This can significantly increase the output power of the electronic cigarette, thereby significantly improving the atomization speed of the e-liquid. It can also add more small functions to the electronic cigarette. The circuit structure is simple, greatly improving the user experience and solving the problem of slow e-liquid atomization speed caused by the relatively low output power of electronic cigarettes in the prior art.

[0032] The specific embodiments described above are preferred embodiments of this utility model, and are not intended to limit the specific scope of this utility model. The scope of this utility model includes but is not limited to the specific embodiments described above. All equivalent changes made in accordance with this utility model are within the protection scope of this utility model.

Claims

1. A control circuit for a high-power electronic cigarette, characterized in that: The device includes a charging circuit, a voltage regulator circuit, a main control circuit for the electronic cigarette body, a high-power e-liquid atomization control circuit, and a temperature acquisition circuit. The output of the charging circuit is connected to a power supply, which in turn powers the voltage regulator circuit and the high-power e-liquid atomization control circuit. The output of the voltage regulator circuit is also connected to the main control circuit for the electronic cigarette body. The output of the temperature acquisition circuit is connected to the input of the main control circuit for the electronic cigarette body, which in turn powers the input of the high-power e-liquid atomization control circuit. The output of the high-power e-liquid atomization control circuit is connected to the cartridge atomizer. The input of the main control circuit for the electronic cigarette body also has control buttons, and the output of the main control circuit for the electronic cigarette body also has a display screen. The main control circuit for the electronic cigarette body can control the connection and disconnection between the high-power e-liquid atomization control circuit and the cartridge atomizer based on the trigger information of the control buttons and the temperature information fed back by the temperature acquisition circuit.

2. The control circuit for a high-power electronic cigarette according to claim 1, characterized in that: The main control circuit of the electronic cigarette body is equipped with a main control chip U8, which has 48 pins. Pin 11 of the main control chip U8 is connected to the output terminal of the voltage regulator circuit. Pins 27, 28, and 29 of the main control chip U8 are connected to the input terminal of the high-power e-liquid atomization control circuit. Pins 12, 24, and 48 of the main control chip U8 are connected to the control buttons. Pins 18, 20, and 22 of the main control chip U8 are connected to the display screen. Pin 34 of the main control chip U8 is connected to the output terminal of the temperature acquisition circuit.

3. The control circuit for a high-power electronic cigarette according to claim 2, characterized in that: The high-power e-liquid atomization control circuit includes a field-effect transistor (FET) U9, a field-effect transistor (FET) U10, a field-effect transistor (FET) U11, an inductor L3, a field-effect transistor (FET) U12, a step-down driver chip U15, a boost driver chip U14, and a resistor R48. The step-down driver chip U15 has 8 pins, and the boost driver chip U14 also has 8 pins. The source of the FET U9 is connected to the output of the charging circuit. The gate of the FET U9 is connected to the 8th pin of the step-down driver chip U15. The drain of the FET U9 is connected to the drain of the FET U11 and one end of the inductor L3. The gate of the FET U11 is connected to the 5th pin of the step-down driver chip U15. The other end of the inductor L3 is connected to the drain of the FET U10 and the... The drain of U12 is connected, the gate of the field-effect transistor U10 is connected to pin 5 of the boost driver chip U14, the gate of the field-effect transistor U12 is connected to pin 8 of the boost driver chip U14, the source of the field-effect transistor U12 is connected to one end of the resistor R48, and the other end of the resistor R48 is connected to the power supply of the atomizer. Pins 1 of the step-down driver chip U15 and pin 1 of the boost driver chip U14 are connected to pin 29 of the main control chip U8. Pin 2 of the step-down driver chip U15 is connected to pin 28 of the main control chip U8, and pin 2 of the boost driver chip U14 is connected to pin 27 of the main control chip U8. The sources of the field-effect transistors U11 and U10 are grounded.

4. The control circuit for a high-power electronic cigarette according to claim 3, characterized in that: The charging circuit includes a power supply protection chip U2, a resistor R6, a field-effect transistor Q1, an inductor L1, a diode D5, and a resistor R7. The power supply protection chip U2 has 6 pins. The 4th pin of the power supply protection chip U2 is connected to the power supply through the resistor R6. The 3rd pin of the power supply protection chip U2 is connected to the input terminal of the voltage regulator circuit and the drain of the field-effect transistor Q1. The source of the field-effect transistor Q1 is connected to one end of the inductor L1. The other end of the inductor L1 is connected to the anode of the diode D5. The cathode of the diode D5 is connected to one end of the resistor R7. The other end of the resistor R7 is connected to the input terminal of the voltage regulator circuit and the source of the field-effect transistor U9.

5. The control circuit for a high-power electronic cigarette according to claim 4, characterized in that: The voltage regulator circuit includes a voltage regulator chip U1, a diode D7, and a diode D10. The voltage regulator chip U1 has three pins. The third pin of the voltage regulator chip U1 is connected to the negative terminals of the diodes D7 and D10. The positive terminal of the diode D7 is connected to the third pin of the power supply protection chip U2. The positive terminal of the diode D10 is connected to the other end of the resistor R7. The second pin of the voltage regulator chip U1 is connected to the eleventh pin of the main control chip U8. The first pin of the voltage regulator chip U1 is grounded.

6. The control circuit for a high-power electronic cigarette according to claim 5, characterized in that: The temperature acquisition circuit includes a thermistor R16. One end of the thermistor R16 is connected to pin 34 of the main control chip U8, and the other end of the thermistor R16 is grounded.

7. The control circuit for a high-power electronic cigarette according to claim 6, characterized in that: The main control chip U8 is model BAT32G137GH48FA, and the step-down drive chip U15 and the step-up drive chip U14 are both model NCP81155MNTXG.

8. The control circuit for a high-power electronic cigarette according to claim 7, characterized in that: The power supply protection chip U2 is model ETA7014S2G, and the voltage regulator chip U1 is model CE6301-3.3V.

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