Electronic cigarette smoking particle spectrum analysis system

Abstract

The utility model relates to an electronic cigarette smoking particle spectrum analysis system which comprises a smoke sucker used for simulating a user to smoke an electronic cigarette; one end of the smoke box is provided with a first pipeline communicated with the smoke sucker, and the smoke box is used for temporarily storing aerosol sucked by the smoke sucker; one end of the particle size spectrometer is provided with a third pipeline communicated with the smoke box, and the particle size spectrometer is used for acquiring the aerosol in the smoke box and detecting the particle size and quantity concentration of particles in the aerosol; the control system comprises a controller and an upper computer, the controller is used for controlling starting and stopping of the range hood and used for controlling connection or disconnection of the first pipeline, and the upper computer is used for sending control instruction data to the controller and the particle size spectrometer and receiving, storing and displaying data fed back by the controller and the particle size spectrometer; according to the electronic cigarette aerosol particle size monitoring system, full-automatic monitoring of particle size and quantity concentration of particles of aerosol of an electronic cigarette can be achieved, an enterprise optimizes the electronic cigarette according to detection data, and then the product quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic cigarette smoke detection, and particularly relates to an electronic cigarette suction particle spectrum analysis system. Background Art

[0002] The core component of an electronic cigarette is an atomizer. The function of the atomizer is to heat and atomize the e-liquid into smoke, and the smoke is sucked out through the mouthpiece. The smoke of an electronic cigarette is an aerosol mixed with particulate matter, volatile organic compounds and gas phase. Therefore, the size and concentration of particulate matter in the aerosol of an electronic cigarette have a very important impact on the taste of the electronic cigarette.

[0003] At present, the detection of electronic cigarettes generally adopts the method of a smoker sucking, and the quality of the electronic cigarette smoke is judged by the smoker supervisor. This detection method has a certain health impact on smokers who have smoked for a long time. Moreover, the quality of the electronic cigarette is judged subjectively by the smoker, and there are human factors affecting it. Intuitive data cannot be obtained, which is not conducive to the improvement of the quality of electronic cigarettes. Furthermore, the cost of manual detection is too high. Content of the Utility Model

[0004] The purpose of the utility model is to overcome the above-mentioned defects in the prior art, and provide an electronic cigarette suction particle spectrum analysis system. The utility model can realize the automatic monitoring of the particle size and number concentration of particulate matter in the aerosol of an electronic cigarette, and can obtain the detection data of the particle size and number concentration of the particulate matter in real time. Enterprises can design and adjust the electronic cigarette according to the detection data, thereby improving the product quality and the competitiveness of the enterprise.

[0005] To achieve the above purpose, the utility model provides an electronic cigarette suction particle spectrum analysis system, including:

[0006] A smoking machine, which is used to simulate the user sucking on the electronic cigarette;

[0007] A smoke box, one end of which has a first pipeline connected to the smoking machine, and which is used to temporarily store the aerosol sucked by the smoking machine;

[0008] A particle size spectrometer, one end of which has a third pipeline connected to the smoke box, and which is used to obtain the aerosol in the smoke box and detect the particle size and number concentration of the particulate matter in the aerosol;

[0009] A control system, which includes a controller and a host computer. The controller is used to control the opening and closing of the smoking machine and to control the connection or disconnection of the first pipeline. The host computer is respectively used to send control instruction data to the controller and the particle size spectrometer, and to receive, store and display the data fed back by the controller and the particle size spectrometer.

[0010] Preferably, the host computer realizes the same network connection with the controller and the particle size spectrometer through the TCP transmission protocol.

[0011] Preferably, the controller includes a power supply module, a main control module electrically connected to the power supply module, an RS485 communication module electrically connected to the main control module, and a first switch driving module electrically connected to the main control module. The power supply module is used to supply power to the main control module. The main control module realizes data connection with the host computer through the TCP transmission protocol. The RS485 communication module is used to transmit start or stop instruction data to the range hood. The first switch driving module is used to control the first pipeline to be connected or closed.

[0012] Preferably, the power supply module includes a power terminal interface, a buck chip electrically connected to the power terminal interface, a linear voltage regulator electrically connected to the buck chip, and a power output port electrically connected to the linear voltage regulator.

[0013] Preferably, the main control module is built-in with a WIFI module for realizing data connection with the host computer.

[0014] Preferably, the first switch driving module includes a first DC power supply, a first switch interface connected in series with the first DC power supply, a first forward light-emitting diode connected in parallel with the first switch interface, and a first N-channel MOS transistor connected in series with the first switch interface. The first forward light-emitting diode is connected in series with a first step-down resistor. The first switch interface is electrically connected to a first solenoid valve. The first solenoid valve is installed on the first pipeline and is used to control the first pipeline to be connected or closed.

[0015] Preferably, a cleaning system is further included. One end of the cleaning system has a second pipeline communicated with the cigarette box. A cleaning air pump is arranged inside the cleaning system. The controller is used for controlling the communication or closing of the second pipeline and for controlling the opening and closing of the cleaning air pump. The controller includes a second switch driving module for controlling the communication or closing of the second pipeline and a third switch driving module for controlling the opening and closing of the cleaning air pump. The second switch driving module includes a second DC power supply, a second switch interface connected in series with the second DC power supply, a second forward light-emitting diode connected in parallel with the second switch interface, and a second N-channel MOS transistor connected in series with the second switch interface. The second forward light-emitting diode is connected in series with a second step-down resistor. The second switch interface is electrically connected to a second solenoid valve. The second solenoid valve is arranged on the second pipeline and is used for controlling the communication or closing of the second pipeline. The third switch driving module includes a third DC power supply, a third switch interface connected in series with the third DC power supply, a third forward light-emitting diode connected in parallel with the third switch interface, and a third N-channel MOS transistor connected in series with the third switch interface. The third forward light-emitting diode is connected in series with a third step-down resistor. The third switch interface is electrically connected to the cleaning air pump.

[0016] Preferably, a flow control valve is further included. The flow control valve is arranged on the third pipeline.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0018] 1. The detection operator only needs to set the relevant parameters of the controller and the particle size spectrometer on the host computer respectively, and then the controller can realize the opening operation of the smoking machine and the first pipeline. The smoking machine is used to simulate a user to suck the aerosol generated by the electronic cigarette. The cigarette box stores the aerosol. Then the particle size spectrometer detects the aerosol in the cigarette box and uploads the data to the host computer for real-time display. The detection operator can directly obtain the detection data of the particle size and number concentration of the particles in the required aerosol and store them on the host computer for convenient subsequent modification operations.

[0019] 2. The present utility model can realize the full-automatic detection of the particle size and number concentration data of the particles in the aerosol generated by sucking the electronic cigarette. The cooperation of the smoking machine and the cigarette box is used to replace the past manual sucking, which can not only protect the health and safety of employees, but also effectively improve the detection efficiency and reduce the cost.

[0020] 3. Detection only needs to control the host computer to achieve the control of each mechanism and the setting of operation parameters, without manual adjustment, which is convenient and efficient. Moreover, the host computer can obtain the real-time feedback detection data of each mechanism in real time, and can intuitively generate corresponding tables according to the detection data. Enterprises can design and adjust e-cigarettes according to these tables, thereby improving product quality and enhancing the competitiveness of enterprises. Description of the Drawings

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to these drawings.

[0022] Figure 1 It is the schematic diagram of the power supply module of an e-cigarette puff particle spectrum analysis system provided by the embodiment of the present invention;

[0023] Figure 2 It is the circuit diagram of the controller provided by the embodiment of the present invention;

[0024] Figure 3 It is the circuit diagram of the power supply module of the controller provided by the embodiment of the present invention;

[0025] Figure 4 It is the circuit diagram of the main control module of the controller provided by the embodiment of the present invention;

[0026] Figure 5 It is the circuit diagram of the RS485 communication module of the controller provided by the embodiment of the present invention;

[0027] Figure 6 It is the circuit diagram of the first switch driving module, the second switch driving module and the third switch driving module of the controller provided by the embodiment of the present invention;

[0028] Figure 7 It is the circuit diagram of the switch reset module, the RS232 communication module and the USB communication module of the controller provided by the embodiment of the present invention.

[0029] In the figure, there are included:

[0030] A1, power supply module; A11, 24V power supply terminal interface; A12, power output port; A2, main control module; A3, RS485 communication module; A4, first switch driving module; A5, second switch driving module;

[0031] A6. The third switch driving module; A7. The switch reset module; A8. The RS232 communication module; A9. The USB communication module; P1. The first pipeline; P2. The second pipeline; P3. The third pipeline; U8. The first switch interface; LED1. The first forward light-emitting diode; Q3. The first N-channel MOS transistor; R16. The first step-down resistor; D6. The first Schottky diode; U9. The second switch interface; LED2. The second forward light-emitting diode; Q5. The second N-channel MOS transistor; R18. The second step-down resistor; D7. The second Schottky diode; U10. The third switch interface; LED3. The third forward light-emitting diode; Q6. The third N-channel MOS transistor; R20. The third step-down resistor; D8. The third Schottky diode. Detailed implementation

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are one of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0033] Please refer to Figures 1 to 7 , the embodiments of the present invention provide an electronic cigarette suction particle size spectrum analysis system, including:

[0034] A smoking machine, which is used to simulate the user's suction of an electronic cigarette;

[0035] A cigarette box, one end of which has a first pipeline P1 connected to the smoking machine, and is used to temporarily store the aerosol sucked by the smoking machine;

[0036] A cleaning system, one end of the cleaning system has a second pipeline P2 connected to the cigarette box, and the cleaning system internally has a cleaning air pump;

[0037] A particle size spectrometer, one end of which has a third pipeline P3 connected to the cigarette box, and is used to obtain the aerosol in the cigarette box and detect the particle size and number concentration of the particles in the aerosol;

[0038] A control system, which includes a controller and a host computer. The controller is used to control the opening and closing of the smoking machine, control the connection or disconnection of the first pipeline P1, control the connection or disconnection of the second pipeline P2, and control the opening and closing of the cleaning air pump. The host computer is respectively used to send control instruction data to the controller and the particle size spectrometer, and receive, store, and display the data fed back by the controller and the particle size spectrometer.

[0039] To detect the stability of data, the electronic cigarette puff particle spectrum analysis system of this embodiment further includes a flow control valve, which is arranged on the third pipeline P3. The flow control valve can control the flow rate of P3 in the third pipeline according to the setting, so as to enable the particle size spectrometer to have a stable input, and then improve the stability of the detected data.

[0040] Among them, the cleaning system can be an air purifier, and the cleaning air pump is used to provide clean air to clean and purify the residual aerosol in the cigarette box.

[0041] The host computer realizes the same network connection with the controller and the particle size spectrometer through the TCP transmission protocol.

[0042] The controller includes a power supply module A1, a main control module A2 electrically connected to the power supply module A1, an RS485 communication module A3 electrically connected to the main control module A2, and a first switch driving module A4, a second switch driving module A5, and a third switch driving module A6 respectively electrically connected to the main control module A2. The power supply module A1 is used to supply power to the main control module A2. The main control module A2 realizes data connection with the host computer through the TCP transmission protocol. The RS485 communication module A3 is used to transmit start or stop command data to the smoking machine. The first switch driving module A4 is used to control the connection or disconnection of the first pipeline P1. The second switch driving module A5 is used to control the connection or disconnection of the second pipeline P2. The third switch driving module A6 is used to control the opening and closing of the cleaning air pump.

[0043] In addition, the controller further includes a switch reset module A7, an RS232 communication module A8, and a USB communication module A9.

[0044] The power supply module includes a power terminal interface A11, a buck chip electrically connected to the power terminal interface A11, a linear voltage regulator electrically connected to the buck chip, and a power output port A12 electrically connected to the linear voltage regulator. Among them, the power terminal interface A11 is a 24V power terminal interface A11, the buck chip is an LM2596 buck chip, and the linear voltage regulator is an LD1117 linear voltage regulator. Further more specifically, the LM2596 buck chip is specifically an LM2596-5.0V buck chip, and the LD1117 linear voltage regulator is specifically an LD1117-3.3V linear voltage regulator.

[0045] The main control module is an ESP32 chip, and the main control module is built-in with a WIFI module for realizing data connection with the host computer.

[0046] The first switch driving module A4 includes a first DC power supply, a first switch interface U8 connected in series with the first DC power supply (the positive pole of the first DC power supply is connected to one end of the first switch interface U8), a first forward light-emitting diode LED1 connected in parallel with the first switch interface U8, and a first N-channel MOS transistor Q3 connected in series with the first switch interface U8 (one end of the first switch interface U8 is connected to the drain terminal D3 of the first N-channel MOS transistor Q3, and the source terminal S3 of the first N-channel MOS transistor Q3 is connected to the negative pole of the first DC power supply). A first step-down resistor R16 is connected in series with the first forward light-emitting diode LED1. The first switch interface U8 is electrically connected to a first solenoid valve, and the first solenoid valve is installed on the first pipeline P1 and is used to control the connection or closing of the first pipeline P1. Among them, the first DC power supply is a 24V DC power supply, and the first step-down resistor R16 is used to step down the voltage on the branch flowing to the first forward light-emitting diode LED1, so as to prevent the first forward light-emitting diode LED1 from being broken down and damaged by too high voltage. In addition, a first Schottky diode D6 with a current direction opposite to that of the first DC power supply is connected in parallel with the first switch interface U8. The function of the first Schottky diode D6 is to protect the switch circuit and prevent the voltage spike of the instantaneous voltage of the high-frequency switch from breaking down the first N-channel MOS transistor Q3.

[0047] The second switch driving module A5 includes a second DC power supply, a second switch interface U9 connected in series with the second DC power supply (the positive pole of the second DC power supply is connected to one end of the second switch interface U9), a second forward light-emitting diode LED2 connected in parallel with the second switch interface U9, and a second N-channel MOS transistor Q4 connected in series with the second switch interface U9 (one end of the second switch interface U9 is connected to the drain terminal D4 of the second N-channel MOS transistor Q4, and the source terminal S4 of the second N-channel MOS transistor Q4 is connected to the negative pole of the second DC power supply). A second step-down resistor R18 is connected in series with the second forward light-emitting diode LED2. The second switch interface U9 is electrically connected to a second solenoid valve, and the second solenoid valve is installed on the second pipeline P2 and is used to control the connection or closing of the second pipeline P2. Among them, the second DC power supply is a 24V DC power supply, and the second step-down resistor R18 is used to step down the voltage on the branch flowing to the second forward light-emitting diode LED2, so as to prevent the second forward light-emitting diode LED2 from being broken down and damaged by too high voltage. In addition, a second Schottky diode D7 with a current direction opposite to that of the second DC power supply is connected in parallel with the second switch interface U8. The function of the second Schottky diode D7 is to protect the switch circuit and prevent the voltage spike of the instantaneous voltage of the high-frequency switch from breaking down the second N-channel MOS transistor Q4.

[0048] The third switch driving module A6 includes a third DC power supply, a third switch interface U10 connected in series with the third DC power supply (the positive pole of the third DC power supply is connected to one end of the third switch interface U10), a third forward light-emitting diode LED3 connected in parallel with the third switch interface U10, and a third N-channel MOS transistor Q5 connected in series with the third switch interface U10 (one end of the third switch interface U10 is connected to the drain terminal D5 of the third N-channel MOS transistor Q5, and the source terminal S5 of the third N-channel MOS transistor Q5 is connected to the negative pole of the third DC power supply). A third step-down resistor R20 is connected in series with the third forward light-emitting diode LED3, and the first switch interface U10 is electrically connected to a cleaning air pump. Among them, the third DC power supply is a 24V DC power supply, and the third step-down resistor R20 is used to step down the voltage on the branch flowing to the third forward light-emitting diode LED3, so as to avoid damaging the third forward light-emitting diode LED3 due to breakdown by too high voltage. In addition, a third Schottky diode D8 with a current direction opposite to that of the third DC power supply is connected in parallel with the third switch interface U10. The function of the third Schottky diode D8 is to protect the switch circuit and prevent the voltage spike of the instantaneous voltage of the high-frequency switch from breaking down the third N-channel MOS transistor Q5.

[0049] The specific connection methods of the above power supply module A1, RS485 communication module A3, first switch driving module A4, second switch driving module A5, and third switch driving module A6 to the main control module A2 are as follows:

[0050] Power supply module A1 and main control module A2: The ground terminal of the power output port A12 is electrically connected to the first pin of the main control module A2, and the VCC terminal of the power output port A12 is electrically connected to the second pin of the main control module.

[0051] RS485 communication module A3 and main control module A2: The RS485 communication module A3 has a MAX3485 transceiver chip. The RS_RX receiving end of the first pin of the MAX3485 transceiver chip is connected to the 11th pin (the 11th pin is an IO port) of the main control module A2 which is an ESP32 chip. The RS_RE enabling end of the second pin of the MAX3485 transceiver chip is connected to the 9th pin (the 9th pin is an IO port) of the main control module A2 which is an ESP32 chip. The RS_TX sending end of the fourth pin of the MAX3485 transceiver chip is connected to the 10th pin (the 10th pin is an IO port) of the main control module A2 which is an ESP32 chip.

[0052] First switch driving module A4 and main control module A2: The gate terminal G3 of the first N-channel MOS transistor Q3 is connected to the 24th pin (the 24th pin is an IO port) of the main control module which is an ESP32 chip.

[0053] The second switch driving module A5 and the main control module A2: the gate terminal G4 of the second N-channel MOS tube Q4 is connected to the 25th pin (the 25th pin is the IO port) of the ESP32 chip of the main control module.

[0054] The third switch driving module A6 and the main control module A2: the gate terminal G5 of the third N-channel MOS tube Q5 is connected to the 26th pin (the 26th pin is the IO port) of the ESP32 chip of the main control module.

[0055] The host computer can be a computer with data processing and communication connection functions, and has a display screen and an operable interface, and the user performs human-computer interaction through the operable interface.

[0056] The working principle of the electronic cigarette puff particle spectrum analysis system of the embodiment of the present utility model (described by combining the hardware structure provided by the present utility model with the software part) is as follows:

[0057] 1. Carry out the detection operation: the second pipeline P2, the cleaning air pump is closed; the atomizer of the electronic cigarette starts to atomize; the detection operator only needs to set the operating parameters of the smoking machine and the particle size spectrometer on the host computer, and then the controller can realize the opening operation of the smoking machine and the first pipeline. The smoking machine simulates the user and inhales the aerosol generated by the electronic cigarette. The aerosol is transported through the first pipeline P1, and the aerosol is stored in the cigarette box. The aerosol is transported through the third pipeline P3, and then the particle size spectrometer detects the aerosol in the cigarette box and uploads the data to the host computer for real-time display. The detection operator can intuitively obtain the required particle size and number concentration detection data in the aerosol, and store it on the host computer;

[0058] 2. Perform cleaning operations: according to the preset cleaning rules, for example, when the smoke extractor and the particle size spectrometer are operating normally, start cleaning after the particle size spectrometer has been running for a preset period of time, etc.; the controller can realize the opening operation of the second pipe P2 and the cleaning air pump. The cleaning system purifies the residual aerosol in the smoke box through the second pipe P2 and the cleaning air pump to achieve air cleaning and avoid affecting the next detection result of the particle size spectrometer.

[0059] 3. Cycle the detection operation N times: Repeat the above steps of 1. detection operation and 2. cleaning operation to realize N times of detection operation in a fully automated manner, so as to make the detection result more stable and accurate.

[0060] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An e-cigarette puff particle spectrum analysis system, characterized in that, Comprising: An electronic cigarette smoking machine for simulating a user's puffing on an electronic cigarette; A cigarette box having a first pipe at one end communicating with the smoking machine for temporarily storing the aerosol puffed by the smoking machine; A particle size spectrometer having a third pipe at one end communicating with the cigarette box for obtaining the aerosol in the cigarette box and detecting the particle size and number concentration of the particles in the aerosol; A control system including a controller and a host computer. The controller is used to control the opening and closing of the smoking machine and to control the connection or disconnection of the first pipe. The host computer is respectively used to send control instruction data to the controller and the particle size spectrometer, and to receive, store and display the data fed back by the controller and the particle size spectrometer; It further includes a cleaning system. One end of the cleaning system has a second pipe communicating with the cigarette box. The cleaning system internally has a cleaning air pump. The controller is used to control the connection or disconnection of the second pipe and to control the opening and closing of the cleaning air pump.

2. The e-cigarette puff particle spectrum analysis system according to claim 1, wherein The host computer realizes a same network connection with the controller and the particle size spectrometer through the TCP transmission protocol.

3. The e-cigarette puff particle spectrum analysis system according to claim 1, characterized in that The controller includes a power supply module, a main control module electrically connected to the power supply module, an RS485 communication module electrically connected to the main control module, and a first switch driving module electrically connected to the main control module. The power supply module is used to supply power to the main control module. The main control module realizes data connection with the host computer through the TCP transmission protocol. The RS485 communication module is used to transmit start or stop instruction data to the smoking machine. The first switch driving module is used to control the connection or disconnection of the first pipe.

4. The e-cigarette puff particle spectrum analysis system according to claim 3, characterized in that, The power supply module includes a power terminal interface, a step-down chip electrically connected to the power terminal interface, a linear voltage regulator electrically connected to the step-down chip, and a power output port electrically connected to the linear voltage regulator.

5. The e-cigarette puff particle spectrum analysis system according to claim 3, wherein, The main control module is internally provided with a WIFI module for realizing data connection with the host computer.

6. The e-cigarette puff particle spectrum analysis system according to claim 3, characterized in that, The first switch driving module includes a first DC power supply, a first switch interface connected in series with the first DC power supply, a first forward light-emitting diode connected in parallel with the first switch interface, and a first N-channel MOS transistor connected in series with the first switch interface. The first forward light-emitting diode is connected in series with a first step-down resistor. The first switch interface is electrically connected to a first solenoid valve. The first solenoid valve is installed on the first pipe and is used to control the connection or disconnection of the first pipe.

7. The e-cigarette puff particle spectrum analysis system according to claim 1, wherein The controller includes a second switch driving module for controlling the connection or disconnection of the second pipe and a third switch driving module for controlling the opening and closing of the cleaning air pump.

8. An electronic cigarette puff particle spectrum analysis system according to claim 7, characterized in that, The second switch driving module includes a second DC power supply, a second switch interface connected in series with the second DC power supply, a second forward light-emitting diode connected in parallel with the second switch interface, and a second N-channel MOS transistor connected in series with the second switch interface. A second step-down resistor is connected in series with the second forward light-emitting diode. The second switch interface is electrically connected to a second solenoid valve. The second solenoid valve is installed on the second pipeline and is used to control the connection or closing of the second pipeline; the third switch driving module includes a third DC power supply, a third switch interface connected in series with the third DC power supply, a third forward light-emitting diode connected in parallel with the third switch interface, and a third N-channel MOS transistor connected in series with the third switch interface. A third step-down resistor is connected in series with the third forward light-emitting diode. The third switch interface is electrically connected to a cleaning air pump.

9. The e-cigarette puff particle spectrum analysis system according to claim 1, characterized in that, It further includes a flow control valve, and the flow control valve is arranged on the third pipeline.

Images