Electronic cigarette system
By combining PID control components and heating components, using heating wire resistance to provide temperature feedback, and employing PID algorithms and PWM adjustments, the problem of uneven temperature control in electronic cigarettes has been solved, achieving fast and accurate temperature control and cost reduction.
Patent Information
- Application Number
- CN202422645580.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-31
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-10-31
AI Technical Summary
Existing electronic cigarettes suffer from uneven temperature control during heating, making precise temperature control impossible and resulting in poor heating performance.
The system employs a PID control component in conjunction with a heating component. Temperature is fed back by sampling the resistance of the heating wire, and precise temperature control is achieved using a PID algorithm. The heating process is optimized using PWM pulse width adjustment.
It achieves rapid and accurate control of heating wire temperature, shortens heating time, improves heating efficiency, meets the heating needs of different cigarettes, enhances the taste experience, and reduces costs.
Smart Images
Figure CN223503734U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electronic cigarette technology, and in particular to an electronic cigarette system. Background Technology
[0002] Electronic cigarettes have the same appearance, smoke, taste, and feel as traditional cigarettes. They are electronic products that mimic the effects of cigarettes and typically use heated e-liquid for user consumption.
[0003] Chinese patent application CN19945676.6 discloses an electronic cigarette smoke generator and an electronic cigarette. The smoke generator includes a housing, a smoke-forming component disposed inside the housing, and a base disposed at one end of the housing. The housing has a mouthpiece, and the interior of the housing has a communicating cavity and an airflow channel. The smoke-forming component includes a glass substrate and a heating element, with the glass substrate covering the heating element. When using the electronic cigarette smoke generator, tobacco or tobacco paste can be added to the cavity. Because the glass substrate covers the heating element, the heating element and the glass substrate work together as a whole to generate heat and conduct heat.
[0004] Chinese patent application CN19735370.8 discloses a multifunctional electronic cigarette, comprising: an electronic cigarette body, a capacitive pen, a miniature LED light, a sensor, a battery pack, a heating element, an e-liquid reservoir, and a tail cap. The miniature LED light is located at the left end of the electronic cigarette body and is connected to the battery pack via a wire. The sensor is located between the miniature LED light and the battery pack. The heating element contains a resistance wire, with its left end connected to the battery pack and its right end connected to the e-liquid reservoir. The e-liquid reservoir contains e-liquid and an airflow channel. The capacitive pen is located at the left end of the miniature LED light. This invention heats the e-liquid with a heating element, replacing traditional cigarettes and keeping users away from harmful substances such as tar. The filter tip with built-in activated carbon particles further filters nicotine and other substances from the smoke. In addition, the capacitive pen connected to the e-cigarette head enriches the functionality of the electronic cigarette.
[0005] As described above, existing electronic cigarette heating technologies typically use heating elements directly, resulting in uniform heating temperatures and failing to achieve temperature control. Utility Model Content
[0006] In order to solve the above problems, the purpose of this utility model is to provide an electronic cigarette system.
[0007] This utility model provides an electronic cigarette system, which includes: an electronic cigarette body (10), a heating component, a PID control component, a power supply, an indicator light (20), and a button (30); the PID control component, the heating component, and the power supply are disposed inside the electronic cigarette body (10), and the indicator light (20) and the button (30) are disposed on the electronic cigarette body (10); the heating component includes a heating wire and a heating control circuit, and the temperature of the heating wire is controlled by the PID control component.
[0008] The power supply provides power to the PID control component, the heating component, and the indicator light (20).
[0009] Optionally, the heating control circuit includes a first electronic component (Q1), a transistor (Q2), and a second electronic component (U2).
[0010] The first electronic component (Q1) is connected to the transistor (Q2) and simultaneously connected to the second electronic component (U2).
[0011] Optionally, the first electronic component (Q1) is of model number DTQ35;
[0012] The electronic component includes a first pin (S1), a second pin (S2), a third pin (S3), a fourth pin (G), a fifth pin (D4), a sixth pin (D3), a seventh pin (D2), an eighth pin (D1), and a ninth pin (D0); wherein the first pin (S1), the second pin (S2), and the third pin (S3) are connected to the power supply; the fourth pin (G) is connected to the transistor (Q2); and the fifth pin (D4), the sixth pin (D3), the seventh pin (D2), the eighth pin (D1), and the ninth pin (D0) are simultaneously connected to the second electronic component (U2).
[0013] Optionally, the fourth pin (G) of the first electronic component (Q1) is connected to the collector of the transistor (Q2) via a fifth resistor (R5);
[0014] The base of the transistor (Q2) is grounded via an eighth resistor R8; the emitter of the transistor (Q2) is grounded.
[0015] Optionally, the second electronic component (U2) is model INA1991A1;
[0016] The second electronic component (U2) includes pin 1 (REF), pin 2 (GND), pin 3 (VCC), pin 4 (IN+), pin 5 (IN-), and pin 6 (OUT); pin 1 (REF) and pin 2 (GND) are connected to the power supply, and a first resistor (R1) is provided between pin 4 (IN+) and pin 5 (IN-).
[0017] This invention provides an electronic cigarette system that utilizes a PID control component combined with a heating component. This results in rapid, accurate, and low-error heating of the heating wire, reducing heating time by 10-15 seconds and significantly improving preheating time. Temperature detection does not rely on external sensors but directly samples the internal environment using the heating wire resistance, ensuring accurate sampling location and heating performance, and providing feedback on the actual temperature status during operation. This allows the electronic cigarette heating to meet the heating environment requirements of different types of cigarettes, better showcasing the flavors of various cigarettes. The manufacturing process of this electronic cigarette system is relatively simple, which helps reduce the material cost per unit of the heated cigarette device, resulting in significant cost control advantages. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the electronic cigarette system structure according to an embodiment of the present invention;
[0019] Figure 2 This is a schematic diagram of the heating control circuit in the electronic cigarette control system of this utility model embodiment;
[0020] Figure 3 This is a schematic diagram of the PID control component in the electronic cigarette control system of this utility model embodiment;
[0021] Figure 4 This is a schematic diagram of the bottom surface of the electronic cigarette system according to an embodiment of the present invention;
[0022] Among them, 10 is the main body of the electronic cigarette, 20 is the indicator light, 30 is the button, 40 is the Type-C charging port, and 50 is the air intake. Detailed Implementation
[0023] The embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only for explaining the present invention and are not restrictive.
[0024] This utility model embodiment provides an electronic cigarette system, such as Figure 1As shown, the electronic cigarette system includes: an electronic cigarette body 10, a heating component, a PID control component, a power supply (the heating component, PID control component, and power supply are not shown in the figure), an indicator light 20, and a button 30. The PID control component, heating component, and power supply are disposed inside the electronic cigarette body 10, while the indicator light 20 and button 30 are disposed on the electronic cigarette body 10. The heating component includes a heating wire and a heating control circuit, and its temperature is controlled by the PID control component to regulate the heating wire. The power supply provides power to the PID control component, heating component, and indicator light 20. The indicator light can be an LED. The positions of the components in the figure are only schematically shown and are not specifically limited in this embodiment.
[0025] like Figure 2 As shown, the heating control circuit includes a first electronic component Q1, a transistor Q2, and a second electronic component U2; the first electronic component Q1 is connected to the transistor Q2 and is also connected to the second electronic component U2.
[0026] The first electronic component Q1 is a DTQ35. The first electronic component Q1 includes a first pin S1, a second pin S2, a third pin S3, a fourth pin G, a fifth pin D4, a sixth pin D3, a seventh pin D2, an eighth pin D1, and a ninth pin D0. The first pin S1, second pin S2, and third pin S3 are connected to the power supply. The fourth pin G is connected to the transistor Q2. The fifth pin D4, sixth pin D3, seventh pin D2, eighth pin D1, and ninth pin D0 are simultaneously connected to the second electronic component U2. The fourth pin G of the first electronic component Q1 is connected to the collector of the transistor Q2 via a fifth resistor R5. The base of the transistor Q2 is connected to the MCU control pin via a sixth resistor R6 and is grounded via an eighth resistor R8. The emitter of the transistor Q2 is grounded. The collector of the transistor Q2 is connected to the fifth resistor R5 and is also connected to the positive power supply BT+ via a third resistor R3.
[0027] The second electronic component U2 is model INA1991A1; see also... Figure 2 The second electronic component U2 includes pin 1 (REF), pin 2 (GND), pin 3 (VCC), pin 4 (IN+), pin 5 (IN-), and pin 6 (OUT). Pins 1 (REF) and 2 (GND) are connected to the power supply, and a first resistor R1 is provided between pins 4 (IN+) and 5 (IN-). Pin 3 (VCC) is grounded via capacitor C4 and simultaneously connected to the VDD terminal. Pins 5 (IN-) and 6 (OUT) are grounded sequentially via a tenth resistor R10 and a capacitor C5. Figure 2 The resistance values shown are for illustrative purposes only and are not limited in this embodiment.
[0028] The PID control component in this embodiment can convert the actual temperature value based on R_AD, I_AD and the proportional coefficient of the heating wire, and feed it back to the PID algorithm for temperature control. This simplifies the hardware structure of temperature detection while providing hardware protection for abnormal circuit conditions, ensuring the normal operation of the heating component.
[0029] The PID control component uses PWM pulse width adjustment, which can make the heating process within the time slice more precise. At the same time, PWM heating helps PID control of the entire heating process.
[0030] The control principle of the PID control component is as follows: Figure 3 As shown, the PID algorithm, under the error between the target temperature and the current temperature, uses proportional, integral, and derivative operations to ensure that the heating process quickly reaches and maintains the temperature set in the recipe, thus minimizing the temperature difference.
[0031] like Figure 4 As shown, the bottom of the electronic cigarette system can also be equipped with a Type-C charging port 40 and an air inlet 50, and the top can be equipped with a cigarette holder.
[0032] In this embodiment, the electronic cigarette system is in sleep mode when not in operation. In sleep mode, all peripherals stop working and can only be woken up via button 30 or serial port. Upon wake-up, button 30 is immediately detected. If button 30 is pressed, a power detection process is immediately initiated and the power level is displayed. If button 30 is not detected after wake-up, the system remains in wake-up state for several seconds, waiting for a command from button 30 or the serial port. When the power detection is complete and the power is sufficient, indicator light 20 remains constantly green; otherwise, indicator light 20 indicates low power and requires charging. Insufficient power prevents heating, and indicator light 20 remains constantly lit. When the power is sufficient, the heating process can begin. The heating process requires pressing and holding button 30 for more than 2 seconds after the wake-up button is released. The heating process is as follows:
[0033] Step 1) Press and hold the button for 2 seconds to start heating.
[0034] Step 2) Does the heating wire reference value exist? If not calibrated, stop heating.
[0035] Step 3) Load the valid user configuration segments in sequence. Once all configuration segments have been executed, exit the heating process.
[0036] Step 4) PWM heating and temperature detection are performed. If a hardware abnormality occurs, heating is stopped.
[0037] Step 5) Obtain the current temperature and perform PID control algorithm to obtain the next PWM heating control value. If the user's heating period is not completed, return to step 4.
[0038] Step 6) If the heating period is satisfied, return to step 3.
[0039] Step 7) After all user-configured heating sections are completed, the heat dissipation stage begins.
[0040] When a cigarette is inserted into the heater for heating, the heating wire should be heated in stages to ensure the heating reaction inside the cigarette. If the heating is done directly without heat dissipation, the surface temperature of the cigarette will be too high and the heat inside the cigarette will be uneven.
[0041] The electronic cigarette system in this embodiment uses a PID algorithm model to control the temperature of the heating wire, and adjusts parameters and changes the heating formula through serial communication, so that the electronic cigarette heating can meet the heating environment required by different types of cigarettes and better bring out the flavor of different cigarettes.
[0042] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.
Claims
1. An electronic cigarette system, characterized in that, The electronic cigarette system includes: an electronic cigarette body (10), a heating component, a PID control component, a power supply, an indicator light (20), and a button (30); the PID control component, the heating component, and the power supply are located inside the electronic cigarette body (10), and the indicator light (20) and the button (30) are located on the electronic cigarette body (10); the heating component includes a heating wire and a heating control circuit, and the temperature of the heating wire is controlled by the PID control component. The power supply provides power to the PID control component, the heating component, and the indicator light (20); The heating control circuit includes a first electronic component (Q1), a transistor (Q2), and a second electronic component (U2); the first electronic component (Q1) is connected to the transistor (Q2) and simultaneously connected to the second electronic component (U2); the first electronic component (Q1) is a DTQ35, and the second electronic component (U2) is an INA1991A1; The first electronic component (Q1) includes a first pin (S1), a second pin (S2), a third pin (S3), a fourth pin (G), a fifth pin (D4), a sixth pin (D3), a seventh pin (D2), an eighth pin (D1), and a ninth pin (D0). The first pin (S1), second pin (S2), and third pin (S3) are connected to a power supply. The fourth pin (G) of the first electronic component (Q1) is connected to the collector of the transistor (Q2) via a fifth resistor (R5). The fifth pin (D4), sixth pin (D3), seventh pin (D2), eighth pin (D1), and ninth pin (D0) are also connected to the second electronic component (U2). The second electronic component (U2) includes pin 1 (REF), pin 2 (GND), pin 3 (VCC), pin 4 (IN+), pin 5 (IN-), and pin 6 (OUT); pin 1 (REF) and pin 2 (GND) are connected to the power supply; a first resistor (R1) is also provided between pin 4 (IN+) and pin 5 (IN-) of the second electronic component (U2); The base of the transistor (Q2) is grounded via an eighth resistor (R8), and the emitter of the transistor (Q2) is grounded.