Nasal inhalation type electronic atomization device and atomization assembly identification circuit thereof

Abstract

The utility model discloses a kind of nose suction type electronic atomization device and its atomization component identification circuit, the circuit includes at least two groups of terminal pair, power supply end, enable switch, identification resistance and micro control unit. Terminal pair is correspondingly arranged with the containing cavity of nose suction type electronic atomization device, is configured as each group The terminal pair can be connected with one atomization component correspondingly;The negative terminal of each terminal pair is grounded. Power supply end sequentially passes through enable switch and identification resistance, and is connected with the positive terminal of each terminal pair respectively. Micro control unit is connected with the control end of enable switch and voltage detection point respectively, realizes the accurate identification to atomization component assembly condition by voltage sampling to detection voltage detection point, improves the control accuracy of atomization component, makes atomization effect more consistent, improves the use experience of user.

Description

Technical Field

[0001] This utility model relates to the field of electronic atomization technology, and in particular to a nasal inhalation electronic atomization device and its atomization component identification circuit. Background Technology

[0002] With the rapid popularization of aerosol generating devices, a variety of nasal inhalation products have emerged on the market. These products can include multiple receiving chambers, each of which can be configured with corresponding atomizing components.

[0003] In this situation, if the configuration of the atomizing components in each cavity cannot be correctly identified, and the atomizing components are controlled only according to the preset control mode, the atomization effect of the device will be inconsistent under different configurations, affecting the user experience. Utility Model Content

[0004] This invention provides a nasal inhalation electronic atomizing device and its atomizing component identification circuit to accurately identify the atomizing component and improve the user experience.

[0005] According to one aspect of this utility model, an atomizing component identification circuit is provided, applied to a nasal inhalation electronic atomizing device; the atomizing component identification circuit includes:

[0006] At least two sets of terminal pairs are provided, the terminal pairs being disposed corresponding to the receiving cavity of the nasal inhalation electronic atomizing device, and configured such that each set of terminal pairs can be connected to an atomizing component, and the negative terminal of each terminal pair is grounded;

[0007] The power supply terminal, the enable switch, and the identification resistor are connected sequentially through the enable switch and the identification resistor to the positive terminals of each terminal pair.

[0008] The microcontroller unit is connected to the control terminal of the enable switch and the voltage detection point, respectively, wherein the voltage detection point is the end of the identification resistor that is connected to the positive terminal.

[0009] Optionally, the atomizing component identification circuit also includes: a pull-up resistor and a voltage divider resistor;

[0010] The pull-up resistor is located between the power supply terminal and the voltage detection point, and the voltage divider resistor is located between the voltage detection point and the microcontroller unit.

[0011] Optionally, the resistance of the pull-up resistor is between 10^7 and 10^8 times the resistance of the heating wire of the atomizing component, and the resistance of the voltage divider resistor is between 10^3 and 10^4 times the resistance of the heating wire of the atomizing component.

[0012] Optionally, the atomizing component identification circuit further includes a power switch; the power switch is connected between the power supply terminal and at least two sets of terminal pairs;

[0013] The microcontroller unit is also connected to the control terminal of the power switch, and the power supply terminal provides power to the atomizing component that is matched with the terminal pair through the power switch.

[0014] Optionally, the number of accommodating cavities and the number of terminal pairs are both 2.

[0015] Optionally, the atomization component identification circuit further includes an airflow sensor, which is connected to the airflow channel of the nasal inhalation electronic atomization device and is used to sense changes in airflow in the airflow channel;

[0016] The microcontroller unit is also connected to the airflow sensor.

[0017] Optionally, both the positive terminal and the negative terminal include a spring pin; the end of the spring pin is exposed on the cavity wall of the corresponding receiving cavity.

[0018] According to another aspect of the present invention, a nasal inhalation electronic atomizing device is provided, the device including the atomizing component identification circuit described in any of the first aspects.

[0019] This utility model provides a nasal inhalation electronic atomizing device and its atomizing component identification circuit. The circuit includes at least two sets of terminal pairs, a power supply terminal, an enable switch, an identification resistor, and a microcontroller unit. The terminal pairs are correspondingly arranged to the receiving cavities of the nasal inhalation electronic atomizing device and are configured to simultaneously connect to the positive and negative terminals of the atomizing components assembled in the corresponding receiving cavities; the negative terminal of each terminal pair is grounded. The power supply terminal passes through the enable switch and the identification resistor, and is connected to the positive terminals of each terminal pair respectively. The microcontroller unit is connected to the control terminal of the enable switch and the voltage detection point respectively. By sampling the voltage at the detection voltage point, accurate identification of the atomizing component assembly status is achieved, improving the accuracy of atomizing component control, resulting in more consistent atomization effects and enhancing the user experience.

[0020] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of this utility model, nor is it intended to limit the scope of this utility model. Other features of this utility model will become readily apparent from the following description. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 A schematic diagram of the external structure of a nasal inhalation electronic atomizing device provided for an embodiment of this utility model;

[0023] Figure 2 An exploded view of a nasal inhalation electronic atomizing device and corresponding atomizing components provided in an embodiment of this utility model;

[0024] Figure 3 A cross-sectional schematic diagram of a nasal inhalation electronic atomizing device and its assembled atomizing components provided for an embodiment of this utility model;

[0025] Figure 4 A circuit diagram of an atomizing component identification circuit provided for an embodiment of this utility model;

[0026] Figure 5 A circuit diagram of another atomizing component identification circuit provided in an embodiment of this utility model;

[0027] Figure 6 A circuit diagram of another atomizing component identification circuit provided for an embodiment of this utility model;

[0028] Figure 7 This is a schematic diagram of the composition of a nasal inhalation electronic atomizing device provided in an embodiment of the present invention. Detailed Implementation

[0029] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0030] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the utility model described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0031] To address the problems mentioned in the background art, this utility model provides an atomizing component identification circuit, which is applied to a nasal inhalation electronic atomizing device. To provide a clearer illustration of the related technical solutions for the atomizing component identification circuit, this section first uses an embodiment to briefly introduce the basic functions and common components of a nasal inhalation electronic atomizing device.

[0032] Figure 1 This is a schematic diagram of the external structure of a nasal inhalation electronic atomizing device provided in an embodiment of the present invention. Figure 2 This is an exploded view of a nasal inhalation electronic atomizing device and its corresponding atomizing components provided in an embodiment of the present invention. Figure 3 This is a cross-sectional schematic diagram of a nasal inhalation electronic atomizing device and its assembled atomizing components provided by an embodiment of the present invention. The X, Y, and Z directions shown in the figure represent the width, thickness, and length directions of the nasal inhalation electronic atomizing device, respectively. Figures 1 to 3 The nasal inhalation electronic atomizing device 100 includes a main body 101, a nasal inhalation component 102, and a cover 103.

[0033] The main body 101 includes a first housing 104, which has at least two receiving cavities (a first receiving cavity 106 and a second receiving cavity 107) and at least one electronic cavity 105. This embodiment is described using a nasal inhalation electronic atomizing device 100, which includes two receiving cavities and a single electronic cavity 105, as an example.

[0034] The first receiving cavity 106 and the second receiving cavity 107 are arranged side by side along the width direction of the nasal inhalation electronic atomizing device 100. Both the first receiving cavity 106 and the second receiving cavity 107 have openings, which can be located at the top of the first housing 104, with the openings of the first receiving cavity 106 and second receiving cavity 107 spaced apart. The first receiving cavity 106 can receive a corresponding atomizing component 108 through its opening, so that at least a portion of the atomizing component 108 can be removably fitted into the first receiving cavity 106 from top to bottom along the length direction of the nasal inhalation electronic atomizing device 100. Similarly, the second receiving cavity 107 can receive a corresponding atomizing component 108 through its opening, so that at least a portion of the atomizing component 108 can be removably fitted into the second receiving cavity 107 from top to bottom along the length direction of the nasal inhalation electronic atomizing device 100.

[0035] The atomizing component 108, also known as a cartridge, is used to generate an aerosol that can be inhaled by heating its liquid matrix using a heating wire. The liquid matrix can be a liquid containing tobacco substances, including volatile tobacco flavor components, or a liquid containing non-tobacco substances. For example, the liquid aerosol forming matrix may include water, solvents, ethanol, plant extracts, flavorings, fragrances, or vitamin mixtures. Flavorings may include, but are not limited to, menthol, peppermint oil, spearmint oil, and various fruit flavorings. Fragrances may include ingredients that provide the user with a variety of flavors or aromas. Vitamin mixtures may be a mixture containing at least one of vitamins A, B, C, and E, but are not limited to. Additionally, the liquid matrix may include aerosol forming agents such as glycerin and propylene glycol.

[0036] The inner walls of the first receiving cavity 106 and the second receiving cavity 107 are also provided with vent holes. After the atomizing component 108 is assembled, its ventilation channel is directly opposite to and connected to the vent hole of the receiving cavity. The vent hole is used to connect (directly connect or indirectly connect through other cavities or channels) the receiving cavity and the outside, so as to realize the fluid flow between the atomizing component 108 in the receiving cavity and the outside. This allows air to flow into the atomizing component 108 and carry the aerosol to the user's nasal cavity when the user inhales the atomizing component 108.

[0037] The electronic cavity 105 can be disposed below the first receiving cavity 106 and the second receiving cavity 107, that is, the electronic cavity 105 is located between any one of the first receiving cavity 106 and the second receiving cavity 107 and the bottom of the first housing 104. The electronic cavity 105 can communicate with each receiving cavity to allow the wiring harness to pass through, so as to realize the status sensing, power supply and control of other functional devices and the atomizing component 108 in the receiving cavity by the power supply component 109 and / or circuit board 110 assembled in the electronic cavity 105. In other embodiments, the electronic cavity 105 can also be disposed in other positions within the first housing 104 relative to each receiving cavity, which is not limited here.

[0038] As can be seen from the foregoing embodiments, the atomizing components can be replaced or refilled according to the user's actual needs. The real-time configuration of the atomizing components in a nasal inhaler may change, including the number and type of components. If the atomizing components are controlled according to a preset control strategy, the atomization effect of the device (e.g., at least one of the following: vapor output, burst power, fragrance concentration, and the number of inhalations provided by a single liquid matrix) will be inconsistent under different configurations, affecting the user experience. To address changes in the atomizing component configuration and improve the user experience, this invention proposes an atomizing component identification circuit. The main body of this circuit is disposed in the electronic cavity. The following embodiments will focus on describing the atomizing component identification circuit.

[0039] Figure 4 A circuit diagram of an atomizing component identification circuit provided in this embodiment of the present invention is based on the foregoing embodiment and refers to... Figure 4 The atomizing component identification circuit 400 includes at least two sets of terminal pairs 401, a power supply terminal VBAT, an enable switch Q1, an identification resistor R0, and a microcontroller unit 402. The terminal pairs 401 are correspondingly arranged to the receiving cavity of the nasal inhaler electronic atomizing device, and are configured such that each set of terminal pairs 401 can be connected to one atomizing component. The negative terminal of each terminal pair 401 is grounded. The power supply terminal VBAT passes through the enable switch Q1 and the identification resistor R0 in sequence, and is connected to the positive terminal of each terminal pair 401. The microcontroller unit 402 is connected to the control terminal of the enable switch Q1 and the voltage detection point k, where the voltage detection point k is the end of the identification resistor R0 connected to the positive terminal.

[0040] Specifically, terminal pair 401 corresponds to the receiving cavity and is a pair of terminals in the atomizing component identification circuit used to electrically connect with the atomizing component assembled in the corresponding receiving cavity. Terminal pair 401 consists of a positive terminal and a negative terminal, which correspond to the positive and negative poles of the atomizing component, respectively. At least two sets of terminal pairs 401 are connected in parallel between the voltage detection point k and the power supply ground terminal GND. One set of terminal pairs 401 corresponds to only one receiving cavity, while a single receiving cavity can correspond to one or more sets of terminal pairs 401. The specific number of sets of terminal pairs 401 corresponding to a single receiving cavity can be set according to the number of positive and negative pole pairs in the atomizing component. For example, if the atomizing component includes a single heating element, and each heating element is provided with a pair of positive and negative poles, then the receiving cavity can correspond to one set of terminal pairs 401; if the atomizing component includes two sets of heating wires, and each set of heating wires is provided with a pair of positive and negative poles, then the receiving cavity can correspond to one set of terminal pairs 401. At least a portion of the terminals is disposed on the cavity wall of the corresponding receiving cavity, so that after the atomizing component is assembled in place, the terminal pair 401 can be directly opposite and in contact with the positive and negative terminals of the atomizing component. For example, the terminal pair 401 can be a pair of spring pins disposed in the corresponding receiving cavity, with the ends of the spring pins exposed on the cavity wall. After the atomizing component is assembled in the receiving cavity, the positive and negative terminals on the atomizing component are respectively in contact or plugged into the positive and negative terminals of the terminal pair 401.

[0041] The power supply terminal VBAT is the terminal in the atomizing component identification circuit used to connect to the power supply. Exemplarily, the power supply can be provided by at least one of a lithium-ion battery, a disposable battery, and a fuel cell. The enable switch Q1 is a controllable switch device whose control terminal is connected to the enable pin of the microcontroller unit 402. It can switch its on / off state according to the presence or absence of the enable signal output by the microcontroller unit 402. Exemplarily, the enable switch Q1 can be a field-effect transistor. The identification resistor R0 is a preset resistor with a fixed resistance value, located between the enable switch Q1 and the positive terminals of each terminal pair 401. During the identification process, it can act as a voltage divider for the heating element of the atomizing component. Exemplarily, the resistance value of the identification resistor R0 is between 2 and 10 times the resistance value of the heating wire in the atomizing component, allowing for appropriate voltage division based on different configurations. For example, when the heating wire resistance is 1.2Ω, the resistance value of the identification resistor R0 can be 6.8Ω.

[0042] The microcontroller unit 402 is the control center of the atomizing component identification circuit. It controls the on / off state of the enable switch Q1 and, when the enable switch Q1 is on, identifies the assembly status of the atomizing components in the nasal inhalation electronic atomizing device based on voltage sampling data from voltage detection point k. For example, the microcontroller unit 402 can be a microcontroller chip or a single-chip microcomputer. When the enable switch Q1 is on, the heating wires of each atomizing component assembled in the nasal inhalation electronic atomizing device are connected in parallel between voltage detection point k and the ground terminal. The microcontroller unit 402 can combine the sampled voltage between the voltage detection point k and the ground terminal GND, the power supply voltage, and the resistance value of the identification resistor R0 to calculate the resistance value of the heating wire connected between the voltage detection point k and the ground terminal. Based on this resistance value, it can determine the assembly data related to the number and type of atomizing components in the nasal inhalation electronic atomizing device. For example, if the sampled resistance value of the heating wire is equal to the resistance value of a single heating wire (with an error within 5%), the microcontroller unit 402 can determine that the nasal inhalation electronic atomizing device contains a single atomizing component; if the sampled resistance value of the heating wire is equal to the parallel resistance value of two heating wires (with an error within 5%), the microcontroller unit 402 can determine that the nasal inhalation electronic atomizing device contains two atomizing components. Based on determining the number of atomizing components, the microcontroller unit 402 can also identify the type of the assembled atomizing component according to the specific resistance value of the sampled heating wire. The type can include various flavors, base materials, and different active ingredients.

[0043] For example, the microcontroller unit 402 can generate an enable signal based on the user's power-on operation, controlling the enable switch Q1 to turn on. When the enable switch Q1 is on, the microcontroller unit 402 further detects the sampled voltage between the voltage detection point k and the ground terminal, and then substitutes the sampled voltage Vk, the voltage Vb provided by the power supply terminal VBAT, and the resistance value R0 of the identification resistor into the resistance calculation formula R. f = (Vk*R0) / (Vb-Vk), determine the resistance R between the voltage detection point k and the ground terminal GND. f Furthermore, based on the resistance R between the voltage detection point k and the grounding terminal GND... fThe microcontroller unit 402 can determine the number and type of atomizing components in a nasal inhaler. For example, if the nasal inhaler includes two cavities and the atomizing component consists of only one heating wire with a resistance of 1.2Ω, and the microcontroller unit 402 detects a resistance of 1.2Ω between voltage detection point k and ground, this indicates that only one heating wire is connected between voltage detection point k and ground, thus identifying that the nasal inhaler has only a single atomizing component. If the microcontroller unit 402 detects a resistance of 0.6Ω between voltage detection point k and ground, this indicates that two heating wires are connected in parallel between voltage detection point k and ground, thus identifying that the nasal inhaler has two atomizing components. After determining the number of atomizing components, the microcontroller unit 402 can adjust the power supply to the heating wire accordingly. For example, it can increase the power supply in the case of a dual atomizing component and decrease the power supply in the case of a single atomizing component.

[0044] The atomizing component identification circuit provided in this embodiment includes at least two sets of terminal pairs, a power supply terminal, an enable switch, an identification resistor, and a microcontroller unit. The terminal pairs are correspondingly arranged to the receiving cavities of the nasal inhaler electronic atomizing device and are configured to simultaneously connect to the positive and negative terminals of the atomizing components assembled in the corresponding receiving cavities; the negative terminal of each terminal pair is grounded. The power supply terminal passes through the enable switch and the identification resistor in sequence and is connected to the positive terminal of each terminal pair. The microcontroller unit is connected to the control terminal of the enable switch and the voltage detection point, respectively. By sampling the voltage at the detection voltage point, accurate identification of the atomizing component assembly status is achieved, improving the accuracy of atomizing component control, resulting in more consistent atomization effects and enhancing the user experience.

[0045] Optionally, Figure 5 A circuit diagram of another atomizing component identification circuit provided in this embodiment of the present invention is shown below, based on the foregoing embodiments and referring to... Figure 5 The atomizing component identification circuit 400 also includes a pull-up resistor R1, a voltage divider resistor R2, and a power switch Q2. The pull-up resistor R1 is located between the power supply terminal VBAT and the voltage detection point k, and the voltage divider resistor R2 is located between the voltage detection point k and the microcontroller unit 402. The power switch Q2 is connected between the power supply terminal VBAT and the positive terminals of at least two sets of terminal pairs 401. The power control pin of the microcontroller unit 402 is also connected to the control terminal of the power switch Q2, and the power supply terminal VBAT provides power to the atomizing component matched with the terminal pair 401 through the power switch Q2.

[0046] Specifically, the pull-up resistor R1 has a resistance greater than the identification resistor R0 and also greater than the voltage divider resistor R2. For example, the pull-up resistor R1 has a resistance between 10^7 and 10^8 times the resistance of the heating wire in the atomizing component, and the voltage divider resistor R2 has a resistance between 10^3 and 10^4 times the resistance of the heating wire in the atomizing component. For instance, if the resistance of a single heating wire is 1.2Ω, the pull-up resistor R1 can be 1MΩ and the voltage divider resistor R2 can be 2KΩ.

[0047] The microcontroller unit 402 is connected to voltage detection point k via voltage divider resistor R2, and voltage detection point k is connected to the power supply terminal VBAT via pull-up resistor R1. The pull-up resistor R1 and voltage divider resistor R2 allow the microcontroller unit 402 to determine whether an atomizing component is connected to terminal pair 401 based on the potential connected to the voltage divider resistor R2 when the enable switch Q1 is not turned on. If the potential connected to the microcontroller unit 402 via voltage divider resistor R2 is high when the enable switch Q1 is not turned on, it indicates that none of the terminal pairs 401 are connected to the heating wire, thus confirming that no atomizing component is connected to terminal pair 401. If the potential connected to the microcontroller unit 402 via voltage divider resistor R2 changes from high to low when the enable switch Q1 is not turned on, it indicates that at least one set of terminal pairs 401 is connected to the heating wire, thus confirming that at least one set of terminal pairs 401 is connected to an atomizing component.

[0048] In addition to the identification functions for the quantity, type, and whether or not the atomizing components are assembled, as mentioned in the previous embodiments, the atomizing component identification circuit can also integrate the function of supplying power to the atomizing components. In this case, terminal pair 401 also supplies power to the atomizing components assembled in its corresponding receiving cavity. Power switch Q2 is the power supply control switch for each terminal pair 401, located between the power supply terminal VBAT and the power detection point. For example, power switch Q2 can be a field-effect transistor. When it is determined that the atomizing component has been connected and the assembly status of the atomizing component has been identified, the microcontroller unit 402 can control the power supply and de-energization of the atomizing component by controlling the on / off state of power switch Q2. It can also adjust the power supply to the atomizing component by controlling the duty cycle of power switch Q2.

[0049] For example, enable switch Q1 is a protection switch of model SP2004KT5-SOT523, and power switch Q2 is a load switch of model SP3415KT2. The enable pin of microcontroller 402 is connected to the control terminal of enable switch Q1, its power supply control pin is connected to the control terminal of power switch Q2, and its sampling pin is connected to voltage detection point k via voltage divider resistor R2. In standby mode, microcontroller 402 determines whether any cavity has been filled with the atomizing component based on the potential connected to the sampling pin. If the potential connected to the sampling pin remains high, microcontroller 402 determines that all cavities have not been filled with the atomizing component and outputs a high potential on the enable pin to keep enable switch Q1 off. If the potential connected to the sampling pin changes from high to low, microcontroller 402 determines that a cavity has been filled with the atomizing component. Subsequently, if microcontroller 402 detects a user's power-on operation, its enable pin changes from high to low, controlling enable switch Q1 to turn on. With enable switch Q1 on, microcontroller 402 calculates the resistance between voltage detection point k and ground based on the sampling voltage Vk detected by the sampling pin, the power supply voltage Vb, and the resistance of the identification resistor R0. It should be noted that since the resistances of pull-up resistor R1 and voltage divider resistor R2 are much greater than the resistance of the heating wire, their influence is ignored in the calculation, and the resistance calculation formula R can still be used. f = (Vk*R0) / (Vb-Vk). The microcontroller unit 402 determines the number of atomizing components to be assembled based on the resistance between the voltage detection point k and the ground terminal GND. After the assembly quantity is determined, the enable pin controlled by the microcontroller unit 402 outputs a high level, controlling the enable switch Q1 to turn off. After the enable switch Q1 is turned off, the microcontroller unit 402 sets the duty cycle of the power switch Q2 according to the number of atomizing components assembled, thereby adjusting the power supply to the atomizing components.

[0050] The atomizing component identification circuit provided in this embodiment also includes a pull-up resistor, a voltage divider resistor, and a power switch. The pull-up resistor is positioned between the power supply terminal and the voltage detection point, and the voltage divider resistor is positioned between the voltage detection point and the microcontroller unit. The power supply terminal is also connected to the voltage detection point via the power switch. The microcontroller unit is also connected to the control terminal of the power switch, realizing dual identification of whether the atomizing component is assembled and the quantity assembled, as well as controllable power supply to the atomizing component, further improving the accuracy of atomizing component control.

[0051] Optionally, Figure 6 A circuit diagram of another atomizing component identification circuit provided in this utility model embodiment, based on the foregoing embodiment, with reference to... Figure 6The atomizing component identification circuit 400 also includes an airflow sensor 601. The airflow sensor 601 is disposed on the airflow channel of the nasal inhaler electronic atomizer and is used to sense changes in airflow in the airflow channel. The microcontroller unit is also connected to the airflow sensor 601.

[0052] Specifically, in combination Figure 3 and Figure 6 The airflow channel 111 refers to a channel or cavity disposed within the first housing. It can communicate with the external air of the device through the snap-fit ​​hole 112, and can also communicate with the ventilation channel of the atomizing component 108 assembled in the receiving cavity through the vent hole. During the user's inhalation of the atomizing component, air can enter the airflow channel 111 from the outside through the snap-fit ​​hole 112, and then enter the ventilation channel 113 of the atomizing component 108 through the vent hole, thereby carrying the aerosol into the user's nasal cavity. The airflow sensor 601 is a sensor disposed in close contact with the airflow channel 111 and used to sense changes in airflow therein. It can generate a corresponding sensing signal when it senses changes in airflow in the airflow channel 111. For example, the airflow sensor 601 can be a microphone sensor.

[0053] For example, continue to refer to Figure 6 The enable pin of the microcontroller unit 402 is connected to the control terminal of the enable switch Q1, its power supply control pin is connected to the control terminal of the power switch Q2, and its sampling pin is connected to the voltage detection point k via the voltage divider resistor R2. In standby mode, the microcontroller unit 402 determines whether any cavity has been filled with the atomizing component based on the potential connected to the sampling pin. If the potential connected to the sampling pin remains high, the microcontroller unit 402 determines that all cavities have not been filled with the atomizing component and outputs a high potential on the enable pin to keep the enable switch Q1 off. If the potential connected to the sampling pin changes from high to low, the microcontroller unit 402 determines that a cavity has been filled with the atomizing component. Subsequently, if the microcontroller unit 402 detects a user's power-on operation, its enable pin changes from high to low, controlling the enable switch Q1 to turn on. With enable switch Q1 on, microcontroller 402 calculates the resistance between voltage detection point k and ground based on the sampling voltage Vk detected by the sampling pin, the power supply voltage Vb, and the resistance of the identification resistor R0. It should be noted that since the resistances of pull-up resistor R1 and voltage divider resistor R2 are much greater than the resistance of the heating wire, their influence is ignored in the calculation, and the resistance calculation formula R can still be used. f= (Vk*R0) / (Vb-Vk). The microcontroller unit 402 determines the number of atomizing components to be assembled based on the resistance between the voltage detection point k and the ground terminal GND. After the assembly quantity is determined, the enable pin controlled by the microcontroller unit 402 outputs a high level, controlling the enable switch Q1 to turn off. After the enable switch Q1 is turned off, the microcontroller unit 402 sets the upper and lower limits of the duty cycle of the power switch Q2 according to the number of atomizing components assembled, thereby adjusting the range of power supply to the atomizing components. During user operation, the microcontroller unit 402 also adjusts the duty cycle of the power switch Q2 based on the airflow sensor 601. When the airflow sensor 601 does not detect airflow, the microcontroller unit 402 determines that the user is not inhaling, and then reduces the duty cycle of the power switch Q2 to reduce the power supply to the atomizing components. At this time, the device is in a low-power heating standby state. When the airflow sensor 601 detects flowing air, the microcontroller unit 402 determines that the user is performing inhalation, and then increases the duty cycle of the power switch Q2 to increase the power supply to the atomizing component. At this time, the device is in a dynamic inhalation state with high power heating to produce a sufficient amount of aerosol for the user to inhale.

[0054] The atomizing component identification circuit provided in this embodiment of the invention also includes an airflow sensor. The airflow sensor is disposed on the airflow channel of the nasal inhalation electronic atomizing device to sense changes in airflow within the airflow channel. The microcontroller unit is also connected to the airflow sensor, enabling adjustment of the power supply to the atomizing component, allowing the heating power of the atomizing component to be dynamically adjusted according to user operation, further improving the user experience.

[0055] This utility model also provides a nasal inhalation electronic atomization device. Figure 7 This is a schematic diagram of the composition of a nasal inhalation electronic atomizing device provided in an embodiment of the present invention. Based on the aforementioned embodiments, and combined with... Figure 3 and Figure 7 The nasal inhalation electronic atomizing device 100 includes an atomizing component identification circuit 400 of any of the aforementioned embodiments, and the main body of the atomizing component identification circuit 400 is disposed in the electronic cavity 105.

[0056] This utility model provides a nasal inhalation electronic atomizing device and its atomizing component identification circuit. The circuit includes at least two sets of terminal pairs, a power supply terminal, an enable switch, an identification resistor, and a microcontroller unit. The terminal pairs are correspondingly arranged to the receiving cavities of the nasal inhalation electronic atomizing device and are configured to simultaneously connect to the positive and negative terminals of the atomizing components assembled in the corresponding receiving cavities; the negative terminal of each terminal pair is grounded. The power supply terminal passes sequentially through the enable switch and the identification resistor, and is connected to the positive terminals of each terminal pair. The microcontroller unit is connected to the control terminal of the enable switch and a voltage detection point. By sampling the voltage at the detection voltage point, accurate identification of the atomizing component assembly status is achieved, improving the accuracy of atomizing component control, resulting in more consistent atomization effects and enhancing the user experience.

[0057] The specific embodiments described above do not constitute a limitation on the scope of protection of this utility model. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A circuit for identifying atomizing components, characterized in that, The atomization component identification circuit, applied to a nasal inhalation electronic atomization device, includes: At least two sets of terminal pairs are provided, the terminal pairs being disposed corresponding to the receiving cavity of the nasal inhalation electronic atomizing device, and configured such that each set of terminal pairs can be connected to an atomizing component, and the negative terminal of each terminal pair is grounded; The power supply terminal, the enable switch, and the identification resistor are connected sequentially through the enable switch and the identification resistor to the positive terminals of each terminal pair. The microcontroller unit is connected to the control terminal of the enable switch and the voltage detection point, respectively, wherein the voltage detection point is the end of the identification resistor that is connected to the positive terminal.

2. The atomizing component identification circuit according to claim 1, characterized in that, It also includes pull-up resistors and voltage divider resistors; The pull-up resistor is located between the power supply terminal and the voltage detection point, and the voltage divider resistor is located between the voltage detection point and the microcontroller unit.

3. The atomizing component identification circuit according to claim 2, characterized in that, The resistance of the pull-up resistor is between 10^7 and 10^8 times the resistance of the heating wire in the atomizing component, and the resistance of the voltage divider resistor is between 10^3 and 10^4 times the resistance of the heating wire in the atomizing component.

4. The atomizing component identification circuit according to claim 1, characterized in that, The resistance value of the identification resistor is between 2 and 10 times the resistance value of the heating wire of the atomizing component.

5. The atomizing component identification circuit according to claim 1, characterized in that, It also includes a power switch connected between the power supply terminal and at least two sets of the terminal pairs; The microcontroller unit is also connected to the control terminal of the power switch, and the power supply terminal provides power to the atomizing component that is matched with the terminal pair through the power switch.

6. The atomizing component identification circuit according to claim 1, characterized in that, At least two sets of the terminal pairs are connected in parallel between the voltage detection point and the ground terminal of the power supply.

7. The atomizing component identification circuit according to claim 1, characterized in that, The number of accommodating cavities and the number of terminal pairs are both 2.

8. The atomizing component identification circuit according to any one of claims 1-7, characterized in that, It also includes an airflow sensor, which is connected to the airflow channel of the nasal inhalation electronic atomizing device and is used to sense changes in the airflow in the airflow channel; The microcontroller unit is also connected to the airflow sensor.

9. The atomizing component identification circuit according to any one of claims 1-7, characterized in that, Both the positive terminal and the negative terminal include a spring pin; The end of the spring pin is exposed on the cavity wall of the corresponding receiving cavity.

10. A nasal inhalation electronic atomizing device, characterized in that, include: The atomizing component identification circuit according to any one of claims 1-9.

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