Dry burning preventing system, aerosol generating device and aerosol generating system

Abstract

The utility model relates to the technical field of aerosol generating devices, and provides an anti-dry-burning system, an aerosol generating device and an aerosol generating system.When a user smokes, a large amount of aerosol generated by normal heating and atomization of an atomization assembly flows into an airflow channel, and when a liquid aerosol generating matrix is gradually exhausted, the atomization assembly is subjected to dry burning, so that the aerosol generating device is prevented from being burnt. The airflow entering the airflow channel can change, the detection piece is adopted to detect the airflow change in the airflow channel, collected target information is sent to the control piece, the control piece sends a reminding instruction to the cut-off switch, and the cut-off switch stops the battery cell from supplying power to the atomization assembly. The circuit breaker can specifically stop power supply between the battery cell and the atomization assembly in a short circuit or disconnection mode, the atomization assembly is effectively prevented from continuing dry burning, damage to the atomization assembly caused by dry burning is avoided, and the service life of the aerosol generating device is prolonged.

Description

Technical Field

[0001] The present application relates to the technical field of aerosol generating devices, and particularly relates to a dry-burning prevention system, an aerosol generating device, and an aerosol generating system. Background Art

[0002] An aerosol generating device is an electronic device used to heat a liquid aerosol generating matrix to atomize and generate an aerosol; the aerosol production device stores a liquid aerosol generating matrix and heats and atomizes the liquid aerosol generating matrix through an atomizing component. During use, after the liquid aerosol generating matrix stored in the aerosol generating device is completely exhausted, it is easy to cause the heating and atomizing component to dry-burn, producing an unpleasant smell and affecting the user experience. Summary of the Utility Model

[0003] In view of the above deficiencies of the prior art, the purpose of the present application is to provide a dry-burning prevention system, an aerosol generating device, and an aerosol generating system, aiming to prevent the atomizing component from dry-burning after the liquid aerosol generating matrix is completely exhausted.

[0004] One technical solution adopted by the present application to solve the technical problem is as follows: A dry-burning prevention system is applied to an aerosol generating device, the aerosol generating device includes an air flow channel and an atomizing component communicated with the air flow channel, and the atomizing component is used to heat an aerosol generating matrix to generate an aerosol; the dry-burning prevention system includes:

[0005] A detecting member, at least partially disposed in the air flow channel, and the detecting member collects target information of the air flow in the air flow channel;

[0006] A control member, electrically connected to the detecting member, and the control member is used to receive the target information; and

[0007] A break switch, electrically connected to the control member, and the break switch responds to a reminder instruction issued by the control member;

[0008] Wherein, the break switch is used to control whether the battery supplies power to the atomizing component.

[0009] Optionally, the detecting member includes an air flow sensor, the air flow sensor is used to collect the target information, and the target information includes the number of times the air flow passes through in the air flow channel; when the number of times the air flow passes through in the air flow channel collected by the detecting member is greater than a preset number of times, the control member issues the reminder instruction to the break switch.

[0010] Optionally, the air flow sensor is a microphone.

[0011] Optionally, the detection component includes at least one of a concentration sensor and a humidity sensor. The concentration sensor and the humidity sensor are used to collect the target information, which includes at least one of the concentration and humidity of the aerosol in the air flow channel.

[0012] Optionally, when the concentration of the aerosol in the air flow channel collected by the detection component is lower than a preset concentration, the control component issues the reminder instruction to the break switch.

[0013] Optionally, when the humidity of the aerosol in the air flow channel collected by the detection component is lower than a preset humidity, the control component issues the reminder instruction to the break switch.

[0014] Optionally, when the concentration of the aerosol in the air flow channel collected by the detection component is lower than a preset concentration and the humidity of the aerosol in the air flow channel is lower than a preset humidity, the control component issues the reminder instruction to the break switch.

[0015] Another technical solution adopted by this application to solve the technical problem is as follows: An aerosol generating device includes:

[0016] A housing having an air flow channel;

[0017] An atomization component, at least partially located in the air flow channel; and

[0018] The anti-dry burning system as described above;

[0019] Wherein, the detection component is at least partially disposed in the air flow channel, and the break switch is disposed in the housing.

[0020] Optionally, the aerosol generating device further includes a circuit board, and the control component and the break switch are disposed on the circuit board.

[0021] Another technical solution adopted by this application to solve the technical problem is as follows: An aerosol generating system includes:

[0022] The aerosol generating device as described above; and

[0023] An external unit, the external unit is connected to the aerosol generating device.

[0024] Compared with the prior art, the present application provides a dry-burning prevention system, an aerosol generating device, and an aerosol generating system. When a user sucks, a large amount of aerosol generated by normal heating and atomization of the atomization component flows into the air flow channel. When the liquid aerosol generating matrix is gradually exhausted, the atomization component undergoes dry burning, and the air flow entering the air flow channel will change. The detection component detects the change in the air flow in the air flow channel and sends the collected target information to the control component. The control component issues a reminder instruction to the open-circuit switch, and the open-circuit switch stops the power supply from the battery cell to the atomization component. The open-circuit switch can specifically stop the power supply between the battery cell and the atomization component by short-circuiting or disconnecting, effectively preventing the atomization component from continuing to burn dry, avoiding damage to the atomization component caused by dry burning, extending the service life of the aerosol generating device, and also avoiding the generation of unpleasant gases during dry burning and affecting the user's taste. Description of the Drawings

[0025] Figure 1 is a three-dimensional structural schematic diagram of the aerosol generating system provided in the present application;

[0026] Figure 2 is a three-dimensional exploded structural schematic diagram of the aerosol generating system provided in the present application;

[0027] Figure 3 is a three-dimensional sectional schematic diagram of the aerosol generating system provided in the present application;

[0028] Figure 4 is a functional principle block diagram of the aerosol generating device provided in the present application.

[0029] Description of the Reference Numerals:

[0030] Aerosol generating system - 1000;

[0031] Aerosol generating device - 100;

[0032] Housing - 10; Air flow channel - 11;

[0033] Atomization component - 20;

[0034] Dry-burning prevention system - 30; Detection component - 31; Air flow sensor - 311; Microphone - 3111; Concentration sensor - 312; Humidity sensor - 313; Control component - 32; Open-circuit switch - 33;

[0035] Battery cell - 40;

[0036] Circuit board - 50;

[0037] External unit - 200. Detailed Description of the Embodiments

[0038] Embodiments of the present application will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application and should not be construed as a limitation of the present application.

[0039] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present application. In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, unless otherwise specified, the meaning of "plurality" is two or more.

[0040] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "mounted", "connected" and "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0041] The present application aims to prevent the atomization device from dry burning after the liquid aerosol generation matrix is completely exhausted, and provides a dry-burning prevention system, an aerosol generation device and an aerosol generation system. When the user sucks, a large amount of aerosol generated by normal heating and atomization of the atomization component flows into the air flow channel. When the liquid aerosol generation matrix is gradually exhausted, the atomization component undergoes dry burning, and the air flow entering the air flow channel will change. The detection component is used to detect the change in the air flow in the air flow channel and send the collected target information to the control component. The control component issues a reminder instruction to the disconnection switch, and the disconnection switch stops the power supply of the battery cell to the atomization component. The disconnection switch can specifically stop the power supply between the battery cell and the atomization component by short-circuiting or disconnecting, effectively preventing the atomization component from continuing to dry burn, avoiding damage to the atomization component caused by dry burning, extending the service life of the aerosol generation device, and also avoiding the generation of unpleasant gases during dry burning, which affects the user's taste. For specific details, please refer to the following embodiments.

[0042] Please refer toFigure 1 and Figure 2 , in an embodiment of the present application, an aerosol generating system 1000 is provided, which includes an aerosol generating device 100 and an external unit 200. The aerosol generating device 100 is used to heat the aerosol generating matrix and atomize to generate aerosol; the external unit 200 stores the liquid aerosol generating matrix and is connected to the aerosol generating device 100, and can supplement the liquid aerosol generating matrix for the aerosol generating matrix; after the liquid aerosol generating matrix in the aerosol generating device 100 is about to be exhausted or has been exhausted, liquid can be replenished through the external unit 200, so as to extend the service life of the aerosol generating device 100 and the aerosol generating system 1000.

[0043] Please refer to Figure 1 , Figure 2 and Figure 3 , in this embodiment, the aerosol generating device 100 includes a housing 10, an atomizing assembly 20 and a dry-burning prevention system 30. An air flow channel 11 is provided in the housing 10, and external air flows into the housing 10 and flows out of the housing 10 through the air flow channel 11; the atomizing assembly 20 is at least partially located in the air flow channel 11, the atomizing assembly 20 heats the liquid aerosol generating matrix, and the aerosol generated by atomization flows into the air flow channel 11 and flows out of the housing 10 along with the external air flow through the air flow channel 11 for the user to inhale. The dry-burning prevention system 30 is located in the housing 10 and is used to detect the air flow change in the air flow channel 11 caused by dry burning of the atomizing assembly 20, and then control the battery cell 40 in the aerosol generating device 100 to stop supplying power to the atomizing assembly 20, effectively preventing the atomizing assembly 20 from continuing to burn dry and causing damage.

[0044] Please refer to Figure 3 and Figure 4, wherein, the dry-burning prevention system 30 includes a detector 31, a controller 32 and a circuit breaker switch 33. The detector 31 is at least partially disposed in the air flow channel 11 for collecting target information of the air flow in the air flow channel 11, and the target information may be the air flow intensity, aerosol concentration, temperature, humidity, etc. in the air flow channel 11; both the controller 32 and the circuit breaker switch 33 are electrically connected to the detector 31. The controller 32 receives the target information collected and transmitted by the detector 31, compares the target information with a preset value, determines the air flow change in the air flow channel 11 caused by the dry burning of the atomization component 20, and then sends a reminder instruction to the circuit breaker switch 33; the circuit breaker switch 33 is used to control whether the battery cell 40 supplies power to the atomization component 20. The circuit breaker switch 33 receives and responds to the reminder instruction sent by the controller 32, controls the battery cell 40 to stop supplying power to the atomization component 20, timely prevents the atomization component 20 from continuing to dry burn, and avoids damage to the atomization component 20 caused by dry burning. The circuit breaker switch 33 can adopt the way of breaking or short-circuiting, that is, short-circuiting or disconnecting the circuit connection between the battery cell 40 and the atomization component 20 to stop the normal power supply to the atomization component 20 and prevent the atomization component 20 from continuing to work.

[0045] Specifically, when the aerosol generating device 100 is in normal suction use, the aerosol generated by the atomization of the atomization component 20 flows out of the housing 10 through the air flow channel 11. When the liquid aerosol generating matrix is about to be exhausted or has been exhausted, the atomization component 20 cannot adsorb and heat enough liquid aerosol generating matrix, causing its own dry burning. First, the amount of generated aerosol decreases, resulting in changes in the air flow intensity, concentration, etc. in the air flow channel 11. Second, the temperature, humidity, etc. of the gas generated by the atomization component 20 change; the detector 31 is used to collect target information such as the air flow intensity, aerosol concentration, humidity, temperature, etc. in the air flow channel 11 and send it to the controller 32. The controller 32 compares the target information with a preset value, for example, the air flow intensity continuously drops below a certain preset value, the aerosol concentration continuously drops below a certain preset value, the temperature or humidity drops below a certain preset value, etc., to determine that the dry burning of the atomization component 20 is caused by the liquid aerosol generating matrix that is about to be exhausted or has been exhausted. The controller 32 can send a reminder instruction to the circuit breaker switch 33. After receiving the reminder instruction, the circuit breaker switch 33 responds and stops the battery cell 40 from supplying power to the atomization component 20, effectively avoiding further dry burning of the atomization component 20, avoiding damage to the atomization component 20 caused by dry burning, prolonging the service life of the aerosol generating device 100, and also avoiding the generation of unpleasant gases caused by dry burning and affecting the user's taste. The controller 32 has a comparison circuit to achieve the above functions.

[0046] Please continue to refer to Figure 3 and Figure 4, in this embodiment, the detector 31 can be an airflow sensor 311, and the target information can be the number of times the airflow passes through the airflow channel 11; the user's suction action causes a change in the airflow in the airflow channel 11 (whether there is airflow passing through). One suction action causes the airflow to pass through the airflow channel 11 once. The airflow sensor 311 detects each airflow change and sends it to the control member 32; the control member 32 receives and accumulates the number of times the airflow passes through, and makes a comparison. When the number of times the airflow passes through is greater than the preset number of times, a reminder instruction is sent to the disconnection switch 33, and the disconnection switch 33 responds to stop the power supply of the battery cell 40 to the atomization assembly 20, effectively preventing the atomization assembly 20 from further dry burning. In the aerosol generating device 100 with the same specifications, the stock of the liquid aerosol generating matrix is basically the same, so that the number of suction times after heating and atomization is maintained within a fixed range. The preset number of times is not limited to a certain definite value and can be a range value. The determination of the preset number of times can be obtained based on the statistics of multiple test groups. For example, taking the average value provides a reliable reference for the comparison of the control member 32. The airflow sensor 311 can adopt a microphone 3111, and the existing microphone 3111 of the aerosol generating device 100 can be used, which has universality.

[0047] Please continue to refer to Figure 3 and Figure 4 , in this embodiment, the detector 31 can be at least one of a concentration sensor 312 and a humidity sensor 313. The concentration sensor 312 collects the concentration of the aerosol in the airflow channel 11, and the humidity sensor 313 collects the humidity of the aerosol in the airflow channel 11. The concentration and humidity of the gas generated during normal atomization and dry burning of the atomization assembly 20 will change. The control member 32 receives the concentration collected by the concentration sensor 312 or the humidity collected by the humidity sensor 313; compares the concentration with the preset concentration, and when the concentration is lower than the preset concentration, and / or compares the humidity with the preset humidity, and when the humidity is lower than the preset humidity, it can be determined that the atomization assembly 20 is about to run out or has run out of the liquid aerosol generating matrix, and a reminder instruction is sent to the disconnection switch 33. The disconnection switch 33 responds to stop the power supply of the battery cell 40 to the atomization assembly 20, effectively preventing the atomization assembly 20 from further dry burning. The preset concentration / preset humidity is not limited to a certain definite value and can be a range value. The determination of the preset concentration / preset humidity can be obtained by using multiple test groups and statistically obtaining the values of the gas concentration or gas humidity generated by the atomization assembly 20 when it is about to run out or has run out of the liquid aerosol generating matrix. For example, taking the average value provides a reliable reference for the comparison of the control member 32.

[0048] Please continue to refer to Figure 3, Further, the aerosol generating device 100 further includes a circuit board 50, and the control member 32 and the open circuit switch 33 are disposed on the circuit board 50. Integrating the control member 32 and the open circuit switch 33 on the circuit board 50 reduces the assembly steps, reduces the space occupation, and is beneficial to reducing the cost and miniaturizing the aerosol generating device 100.

[0049] In summary, the present application provides a dry burning prevention system, an aerosol generating device, and an aerosol generating system. When the user sucks, a large amount of aerosol generated by normal heating and atomization of the atomization component flows into the air flow channel. When the liquid aerosol generating matrix is gradually exhausted, the atomization component undergoes dry burning, and the air flow in the air flow channel changes. The detection member is used to detect the change in the air flow in the air flow channel, send the collected target information to the control member, and the control member issues a reminder instruction to the open circuit switch. The open circuit switch stops the power supply of the battery cell to the atomization component, and the open circuit switch can specifically stop the power supply between the battery cell and the atomization component by short-circuiting or disconnecting, effectively preventing the atomization component from continuing to dry burn, avoiding damage to the atomization component caused by dry burning, prolonging the service life of the aerosol generating device, and also avoiding the generation of unpleasant gases during dry burning, which affects the user's taste.

[0050] It should be understood that the application of the present application is not limited to the above examples. For those of ordinary skill in the art, improvements or transformations can be made according to the above description, and all such improvements and transformations should fall within the protection scope of the appended claims of the present application.

Claims

1. An anti-dry burning system is applied to an aerosol generating device. The aerosol generating device includes an air flow channel and an atomization assembly communicated with the air flow channel. The atomization assembly is used for heating an aerosol generating substrate to generate aerosol, and is characterized in that, Comprising: A detection component, at least partially disposed within the air flow channel, the detection component collecting target information of the air flow in the air flow channel; A control component, electrically connected to the detection component, the control component being configured to receive the target information; And A break switch, electrically connected to the control component, the break switch responding to a reminder instruction issued by the control component; Wherein, the break switch is configured to control whether the battery cell supplies power to the atomization component.

2. The dry-burning prevention system according to claim 1, characterized in that The detection component includes an air flow sensor, the air flow sensor being configured to collect the target information, the target information including the number of times the air flow passes through in the air flow channel; when the number of times the air flow passes through in the air flow channel collected by the detection component is greater than a preset number of times, the control component issues the reminder instruction to the break switch.

3. The anti-dry burning system according to claim 2, characterized in that, The air flow sensor is a microphone.

4. The dry-burning prevention system according to claim 1, characterized in that, The detection component includes at least one of a concentration sensor and a humidity sensor, the concentration sensor and the humidity sensor being configured to collect the target information, the target information including at least one of the concentration and humidity of the aerosol in the air flow channel.

5. The dry-burning prevention system according to claim 4, wherein When the concentration of the aerosol in the air flow channel collected by the detection component is lower than a preset concentration, the control component issues the reminder instruction to the break switch.

6. The anti-dry burning system according to claim 4, wherein When the humidity of the aerosol in the air flow channel collected by the detection component is lower than a preset humidity, the control component issues the reminder instruction to the break switch.

7. The dry-burning prevention system according to claim 4, wherein When the concentration of the aerosol in the air flow channel collected by the detection component is lower than a preset concentration and the humidity of the aerosol in the air flow channel is lower than a preset humidity, the control component issues the reminder instruction to the break switch.

8. An aerosol generating device, characterized in that, Comprising: A housing, having an air flow channel; An atomization component, at least partially located in the air flow channel; And The dry-burning prevention system according to any one of claims 1-7; Wherein, the detection component is at least partially disposed within the air flow channel, and the break switch is disposed within the housing.

9. The aerosol generating device according to claim 8, wherein, The aerosol generating device further includes a circuit board, and the control component and the break switch are disposed on the circuit board.

10. An aerosol generating system, characterized in that, Comprising: The aerosol generating device according to claim 9; And An external unit, the external unit being connected to the aerosol generating device.

Images