Atomizer and electronic atomization device

Abstract

The utility model relates to an atomizer and an electronic atomization device. The atomizer comprises a shell, wherein a storage cavity for storing an atomizing matrix is defined in the shell; the heating element is arranged in the shell and is used for heating the atomization substrate to form aerosol; and the temperature detection device is configured to detect the temperature value or the temperature value change of the heating element so as to determine whether the heating element is in a dry burning state or not. According to the atomizer disclosed by the invention, the temperature value or the temperature value change of the heating element is monitored in real time through the temperature detection device, so that the dry burning state of the heating element is accurately judged, and the safety and the stability are improved.

Description

Technical Field

[0001] This disclosure relates to the field of atomization technology, and more specifically to an atomizer and an electronic atomization device. Background Technology

[0002] Electronic cigarettes are electronic atomization devices used to generate an aerosol from an atomizing matrix for users to inhale. The atomizing matrix can be liquid, solid, or gel, such as e-liquid, e-cream, or e-paste. Existing atomizers often experience dry burning when the atomizing matrix supply is insufficient or depleted, thus affecting the atomizer's performance and lifespan. Therefore, there is an urgent need in the art for an improved atomizer to address these problems.

[0003] The methods described in this section are not necessarily methods that had been previously conceived or adopted. Unless otherwise specified, no method described in this section should be assumed to be prior art simply because it is included in this section. Similarly, unless otherwise specified, the issues mentioned in this section should not be considered to be accepted in any prior art. Utility Model Content

[0004] According to a first aspect of this disclosure, an atomizer is provided, characterized in that the atomizer comprises: a housing having a storage cavity defined therein for storing an atomizing matrix; a heating element disposed inside the housing and used to heat the atomizing matrix to form an aerosol; and a temperature detection device configured to detect a temperature value or a temperature change of the heating element to determine whether the heating element is in a dry-burning state.

[0005] According to a first aspect of this disclosure, an electronic atomizing device is provided, comprising: an atomizer as described in the first aspect of this disclosure; a power supply assembly; and a control circuit board electrically connected to the atomizer and the power supply assembly to control the power output to the atomizer; wherein a temperature detection device of the atomizer is connected to the control circuit board.

[0006] The atomizer provided according to the exemplary embodiments of this disclosure uses a temperature detection device to monitor the temperature value or temperature change of the heating element in real time, which can quickly determine whether the heating element has entered a dry-burning state, thereby improving the safety and stability of the device. The atomizer according to this disclosure helps to keep the heating element within a suitable operating temperature range and helps to ensure the stable generation of aerosol, avoiding atomizer damage or uneven aerosol quality due to abnormal temperature. Attached Figure Description

[0007] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort. Wherein:

[0008] Figure 1 This is a schematic diagram of a heating element and a temperature detection device according to exemplary embodiments of the present disclosure;

[0009] Figure 2 This is a schematic diagram of another embodiment of the heating element and temperature detection device according to exemplary embodiments of the present disclosure;

[0010] Figure 3 This is a schematic diagram of an electronic atomizing device according to an exemplary embodiment of the present disclosure.

[0011] List of reference numerals in the attached diagram:

[0012] Electronic atomizing device-10;

[0013] Power Supply Unit-101;

[0014] Control circuit board-102;

[0015] Power supply circuit-121, positive voltage power supply circuit-211, negative voltage power supply circuit-212, positive and negative voltage switching circuit-213;

[0016] First detection circuit - 122;

[0017] Power control circuit - 123;

[0018] Output drive circuit -124;

[0019] Heating element-103, first pin-131, second pin-132;

[0020] First lead-21, second lead-22, third lead-23, fourth lead-24, another lead-25;

[0021] Temperature sensor -30, pads -40. Detailed Implementation

[0022] The technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this disclosure, and not all of them. Based on the embodiments of this disclosure, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this disclosure.

[0023] "Atomizing matrix" refers to a mixture or auxiliary substance that can be wholly or partially atomized into an aerosol by an electronic atomizing device or similar device. The atomizing matrix can be a liquid, paste, or solid form of e-cigarette material, medical drugs, skincare products, etc. By atomizing these media, an aerosol that can be inhaled or absorbed can be delivered to the user. "Aerosol" refers to a colloidal dispersion system formed by the dispersion and suspension of solid or liquid particles in a gaseous medium. "Atomizing device" refers to a device that forms an aerosol from stored atomizable matrix, i.e., the atomizing matrix, through heating or ultrasound. "E-cigarette" refers to an electronic atomizing device that uses tobacco materials, such as e-liquid or e-cream, as the atomizing matrix to generate an aerosol (i.e., smoke) for inhalation, sucking, chewing, or nasal inhalation.

[0024] With the continuous development of the e-cigarette market and the constant updating of related technologies, consumers' demand for safe and reliable e-cigarette products is constantly increasing. E-cigarettes use atomizing substrates in liquid, solid, or gel form as heating materials, and obtain aerosols for users to inhale by heating the atomizing substrate. However, in existing e-cigarettes / atomizers, insufficient supply or depletion of the atomizing substrate often leads to a dry-burning state. It should be understood that, in this disclosure, a dry-burning state of the heating element refers to a situation where the instantaneous temperature of the heating element exceeds a certain temperature value, or where the temperature change of the heating element is too large, exceeding a certain threshold. This dry-burning phenomenon not only seriously affects the atomizer's performance but may also lead to a decrease in aerosol quality or failure to generate aerosols, thus affecting the user's inhalation experience. Furthermore, it significantly shortens the atomizer's lifespan and increases device maintenance costs. Therefore, there is an urgent need in the art for an improved atomizer to solve the above problems.

[0025] The atomizer and electronic atomizing device according to this disclosure are described in detail below with reference to the accompanying drawings, wherein, Figure 1 This is a schematic diagram of a heating element and a temperature detection device according to exemplary embodiments of the present disclosure; Figure 2 This is a schematic diagram of another embodiment of the heating element and temperature detection device according to exemplary embodiments of the present disclosure; Figure 3 This is a schematic diagram of an electronic atomizing device according to an exemplary embodiment of the present disclosure.

[0026] According to a first aspect of this disclosure, an atomizer is provided. The atomizer includes a housing (not shown in the drawings for simplicity), within which a storage cavity is defined for storing an atomizing matrix. Furthermore, the atomizer includes a heating element 103 and a temperature detection device, wherein the heating element 103 is disposed inside the housing and is used to heat the atomizing matrix to form an aerosol. Additionally, the temperature detection device of the atomizer is configured to detect the temperature value or temperature change of the heating element 103 to determine whether the heating element 103 is in a dry-burning state.

[0027] The atomizer provided according to the exemplary embodiments of this disclosure uses a temperature detection device to monitor the temperature value or temperature change of the heating element in real time, which can quickly determine whether the heating element has entered a dry-burning state, thereby improving the safety and stability of the device. The atomizer according to this disclosure helps to keep the heating element within a suitable operating temperature range and helps to ensure the stable generation of aerosol, avoiding atomizer damage or uneven aerosol quality due to abnormal temperature.

[0028] In some embodiments, the heating element 103 may have a mesh structure. In this embodiment, the mesh structure of the heating element can provide a more uniform heat distribution, which helps to improve heat conduction efficiency.

[0029] In some embodiments, the heating element 103 is provided with a first pin 131 and a second pin 132 at opposite ends, and a first lead 21 and a second lead 22 for connecting to the power supply circuit are electrically connected to the heating element 103 at the first pin 131 and the second pin 132, respectively, to provide a driving current flowing through the heating element 103.

[0030] In some embodiments, the first pin 131 and the second pin 132 are made of a different material than the heating element 103.

[0031] In some examples, the first lead 21 and the second lead 22 can be fixedly connected to the pins of the heating element 103 by means of soldering or bonding to maintain point contact. In some examples, the first lead 21 and the second lead 22 can also be connected to the pins of the heating element 103 using a detachable structure such as a snap-fit ​​or a groove. For example, a socket or other structure can be provided on the first pin 131 and the second pin 132 so that the corresponding ends of the first lead 21 and the second lead 22 can be inserted and thus electrically connected to the heating element 103.

[0032] In such Figure 1 and Figure 2 In the example shown, a first pin 131 and a second pin 132 can be provided at opposite ends of the heating element 103, and the shapes of the first pin 131 and the second pin 132 are not particularly limited.

[0033] In some embodiments, the temperature detection device includes a third lead 23 and a fourth lead 24. The third lead 23 is connected to a position on the first pin 131 that is different from the first lead 21, and the fourth lead 24 is connected to a position on the second pin 132 that is different from the second lead 22. The temperature detection device obtains the voltage value of the heating element 103 at different times through the third lead 23 and the fourth lead 24 to determine the change in the resistance value of the heating element 103.

[0034] For clarity of view, this application Figure 1 and Figure 2 The dimensions of the first pin 131 and the second pin 132 shown are relatively large compared to the dimensions of the first to fourth leads. However, it should be understood that within the scope of this disclosure, the first pin 131 can be considered as a single electrical connection point, and the second pin 132 can also be considered as a single electrical connection point. Therefore, the first lead 21 and the third lead 23 connected to the first pin 131 can be considered to have the same potential, and the second lead 22 and the fourth lead 24 connected to the second pin 131 can also be considered to have the same potential. Thus, the voltage difference across the heating element 103 is obtained through the voltage difference between the second lead and the fourth lead.

[0035] In the above embodiment, using the third and fourth leads as voltage measurement leads can reduce the influence of measurement deviations caused by the resistance of the current leads themselves or poor contact, such as contact resistance, thereby providing more accurate voltage and resistance measurement data. Due to the influence of temperature on the material resistance, there is a specific quantitative relationship between the resistance of the heating element 103 and its temperature value. Therefore, by measuring the voltage of the heating element 103 at different times using the third lead 23 and the fourth lead 24, the current resistance value or resistance change of the heating element 103 can be obtained, thereby accurately determining the temperature or temperature change of the heating element 103. This more accurate temperature monitoring can help improve the temperature control accuracy of the atomizer, thereby preventing problems such as overheating and dry burning.

[0036] refer to Figure 3 The temperature detection device can be connected to the control circuit board 102 of the electronic atomizing device 10 (described in detail below). In some embodiments, the third lead 23 and the fourth lead 24 can be connected to a first detection circuit of the temperature detection device, wherein the first detection circuit is used to determine the voltage difference between the third lead 23 and the fourth lead 24. Figure 3 As shown, the first detection circuit 122 of the temperature detection device can be integrated on the control circuit board 102 of the electronic atomizing device 10.

[0037] In the above embodiment, by connecting the third lead 23 and the fourth lead 24 to the first detection circuit 122 of the temperature detection device, the voltage difference between the two ends of the heating element 103 can be accurately measured. This design ensures that the voltage difference measurement is not affected by the current path, thereby obtaining higher accuracy voltage difference data. Accurate voltage difference measurement can help to more accurately estimate the resistance value or resistance change of the heating element, thereby estimating its temperature change and helping to determine the dry-burning state of the heating element.

[0038] In some embodiments, the driving current provided to the heating element 103 by the first lead 21 and the second lead 22 is an alternating current, wherein one of the first lead 21 and the second lead 22 is connected to one end of a power supply circuit 121 for providing alternating current, and the other of the first lead 21 and the second lead 22 is connected to the other end of the power supply circuit 121, so that alternating current is provided to the heating element 103 via the first lead 21 and the second lead 22.

[0039] When determining the resistance value of the heating element 103, since the first pin 131 and the second pin 132 may be made of different materials than the heating element 103, and the third lead 23 and the fourth lead 24 used for voltage measurement may also be made of different materials (e.g., different metals), thermoelectric effects in different directions can easily occur between the connecting parts made of different materials (e.g., thermoelectric effects may amplify or reduce the voltage difference). Here, the above embodiment uses the periodic fluctuation of the alternating current, with the current direction constantly reversing, which avoids measurement errors caused by thermoelectric effects from direct current, further improving measurement accuracy.

[0040] refer to Figure 3 In some embodiments, the power supply circuit 121 includes a positive voltage power supply circuit 211, a negative voltage power supply circuit 212, and a positive / negative voltage switching circuit 213 for periodically connecting or disconnecting the positive voltage power supply circuit 211 and the negative voltage power supply circuit 212 to provide alternating current. The above embodiments improve the safe and reliable AC drive current by configuring the power supply circuit 121 as a heating element.

[0041] refer to Figure 2 In some embodiments, the temperature detection device includes a temperature sensor 30 for measuring the temperature of the heating element 103, the temperature sensor being disposed on the heating element 103. In this embodiment, by directly disposing the temperature sensor on the heating element, real-time and accurate measurement of the temperature of the heating element 103 can be achieved.

[0042] It is understood that the specific type and model of the temperature sensor 30 in this disclosure are not limited. For example, any suitable temperature sensor, such as an NTC thermistor, can be used to measure the temperature value of the heating element 103. Furthermore, since the internal temperature of the heating element 103 is uniform, the temperature sensor 30 can be placed at any suitable location on the heating element 301, and this disclosure does not impose any limitations on this.

[0043] In some embodiments, the temperature sensor 30 has another lead 25, one of the first lead 21 and the second lead 22 being connected to the other lead 25 to a second detection circuit for measuring the resistance value of the temperature sensor 30. In the above embodiments, accurate temperature data of the temperature sensor can be obtained by measuring the resistance change of the temperature sensor through the second detection circuit, thereby obtaining the temperature value of the heating element 103.

[0044] Furthermore, if the temperature sensor 30 malfunctions or its resistance value changes abnormally, the second detection circuit can promptly detect and report this to the electronic cigarette's control system. This helps ensure the normal operation of the temperature sensor, avoids temperature monitoring failure due to sensor malfunction, and guarantees safety and efficiency during use.

[0045] In some embodiments, the temperature detection device includes a solder pad 40 connected to the heating element 103, and the temperature sensor 30 is soldered to the solder pad 40. Soldering the temperature sensor 30 to the solder pad 40 ensures a secure connection between the temperature sensor 30 and the heating element 103. This soldering method effectively prevents loosening or poor contact caused by vibration, thermal expansion and contraction, thereby improving the stability and reliability of temperature detection. Furthermore, in high-temperature environments, the coefficients of thermal expansion of the temperature sensor 30 and the heating element 103 may differ, and long-term thermal stress may affect the quality of the connection. Therefore, the solder pad 40 effectively disperses thermal stress and reduces damage to the connection point due to mechanical stress caused by temperature fluctuations.

[0046] In some examples, the temperature sensor 30 can be welded to the pad 40 using laser welding. In some examples, the size of the pad 40 can be similar to or slightly larger than the size of the temperature sensor 30 to save space in the atomizer and improve the compactness of the device.

[0047] According to a second aspect of this disclosure, an electronic atomizing device, such as an electronic cigarette, is provided. Figure 3As shown, the electronic atomizing device 10 includes: an atomizer according to the first aspect of this disclosure; a power supply assembly 101; and a control circuit board 102, which is electrically connected to the atomizer and the power supply assembly 101 to control the power output to the atomizer. A temperature detection device for the atomizer is connected to the control circuit board 102. The electronic atomizing device according to the second aspect of this disclosure has the same or similar technical features and advantages as the atomizer according to the first aspect of this disclosure, and will not be repeated here.

[0048] In some embodiments, the control circuit board 102 and the power supply assembly 101 are housed in the rod of the electronic atomizing device 10, such as a cigarette holder (not shown in the figure), and the atomizer is connected to the rod by a snap-fit ​​or magnetic attachment. This design facilitates user maintenance, cleaning, or replacement of components such as the control board.

[0049] In some embodiments, the control circuit board 102 includes a power supply circuit 121, which includes a positive voltage power supply circuit 211 connected to the positive terminal of the power supply assembly 101, a negative voltage power supply circuit 212 connected to the negative terminal of the power supply assembly 101, and a positive / negative voltage switching circuit 213 for periodically switching the positive voltage power supply circuit 211 and the negative voltage power supply circuit 212 on or off to provide alternating current. (Continue referring to...) Figure 3 The control circuit board 102 also includes: a power control circuit 123 configured to control the power output to the heating element 103 of the atomizer based on temperature information obtained by a temperature detection device; and an output drive circuit 124 connected to the power supply circuit 121 and the power control circuit 123 to output drive current to the heating element.

[0050] By integrating power supply circuitry, power control circuitry, and output drive circuitry into the control circuit board, the electronic atomizing device described in this disclosure achieves precise power regulation. Furthermore, the multiple circuit modules (power supply circuitry 121, power control circuitry 123, and output drive circuitry 124) in the control circuit board 102 enable a highly modular design for the electronic atomizing device. Users or manufacturers can easily replace or upgrade modules on the circuit board as needed, thereby improving system performance and adapting to different requirements. This modular design also makes the device easier to maintain and repair, extending the lifespan of the electronic atomizing device.

[0051] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of this disclosure are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0052] The terms "first," "second," and "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first," "second," or "third" may explicitly or implicitly include one or more of that feature. In the description of this disclosure, "a plurality of" means two or more, unless otherwise explicitly specified.

[0053] In this disclosure, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0054] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0055] In this document, “connection” refers to fluid connectivity, meaning that a fluid (including liquids and / or gases) can flow from one component to another. Furthermore, in this document, connectivity between two components can refer to direct connection between the two components, such as at least partial alignment between two holes, or connectivity via an intermediate medium.

[0056] In this disclosure, unless otherwise stated, all figures used in this specification and claims to represent component parameters, technical effects, etc., should in any instance be understood to be modified by the terms "approximately" or "roughly". Therefore, unless indicated to the contrary, the numerical parameters listed in the following specification and appended claims are approximate values. They will vary for those skilled in the art depending on the desired properties and effects sought to be obtained through this disclosure, and each numerical parameter should be interpreted according to the number of significant figures and conventional rounding methods or in a manner understood by those skilled in the art.

[0057] In this disclosure, the terminology used in the description of the various examples is for the purpose of describing particular examples only and is not intended to be limiting. Unless the context explicitly indicates otherwise, an element may be one or more unless the number of elements is specifically limited. Furthermore, the term "and / or" as used in this disclosure covers any one of the listed items and all possible combinations thereof.

[0058] The above are merely embodiments or examples of this disclosure and do not limit the patent scope of this disclosure. Any equivalent structural transformations made based on the concept of this disclosure and the content of this specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this disclosure. Various elements in the embodiments or examples may be omitted or replaced by equivalent elements. Furthermore, the steps may be performed in a different order than described in this disclosure. Further, various elements in the embodiments or examples may be combined in various ways. Importantly, as technology evolves, many elements described herein can be replaced by equivalent elements appearing after this disclosure.

Claims

1. An atomizer, characterized in that, The atomizer includes: A housing, wherein a storage cavity for storing an atomized matrix is ​​defined within the housing; A heating element, disposed inside the housing, for heating the atomizing matrix to form an aerosol; and A temperature detection device is configured to detect the temperature value or temperature change of the heating element to determine whether the heating element is in a dry-burning state.

2. The atomizer according to claim 1, characterized in that, The heating element has a mesh structure.

3. The atomizer according to claim 1 or 2, characterized in that, The heating element has a first pin and a second pin at opposite ends. The first lead and the second lead are electrically connected to the heating element at the first pin and the second pin, respectively, to provide a driving current flowing through the heating element.

4. The atomizer according to claim 3, characterized in that, The temperature detection device includes a third lead and a fourth lead. The third lead is connected to a position on the first pin that is different from the first lead. The fourth lead is located on the second pin that is different from the second lead. The temperature detection device obtains the voltage value of the heating element at different times through the third lead and the fourth lead to determine the change in the resistance value of the heating element.

5. The atomizer according to claim 4, characterized in that, The third lead and the fourth lead are connected to the first detection circuit of the temperature detection device, wherein the first detection circuit is used to determine the voltage difference between the third lead and the fourth lead.

6. The atomizer according to claim 4 or 5, characterized in that, The driving current is an alternating current, wherein one of the first lead and the second lead is connected to one end of the power supply circuit for providing the alternating current, and the other of the first lead and the second lead is connected to the other end of the power supply circuit, so that the alternating current is provided to the heating element via the first lead and the second lead.

7. The atomizer according to claim 6, characterized in that, The power supply circuit includes a positive voltage power supply circuit, a negative voltage power supply circuit, and a positive / negative voltage switching circuit for periodically connecting or disconnecting the positive voltage power supply circuit and the negative voltage power supply circuit to provide the alternating current.

8. The atomizer according to claim 3, characterized in that, The first pin and the second pin are made of a different material than the heating element.

9. The atomizer according to claim 1 or 2, characterized in that, The temperature detection device includes a temperature sensor for measuring the temperature of the heating element, and the temperature sensor is disposed on the heating element.

10. The atomizer according to claim 8, characterized in that, The temperature sensor has another lead, one of the first lead and the second lead being connected to a second detection circuit for measuring the resistance value of the temperature sensor.

11. The atomizer according to claim 8, characterized in that, The temperature detection device includes a solder pad, which is connected to the heating element, and the temperature sensor is connected to the solder pad by soldering.

12. An electronic atomizing device, characterized in that, The electronic atomizing device includes: The atomizer according to any one of claims 1 to 11; Power supply components; A control circuit board, which is electrically connected to the atomizer and the power supply assembly, to control the power output to the atomizer; The temperature detection device of the atomizer is connected to the control circuit board.

13. The electronic atomizing device according to claim 12, characterized in that, The control circuit board and the power supply assembly are disposed in the rod of the electronic atomizing device, and the rod is connected to the atomizer by means of snap-fit ​​or magnetic attraction.

14. The electronic atomizing device according to claim 12 or 13, characterized in that, The control circuit board includes: The power supply circuit includes a positive voltage power supply circuit connected to the positive terminal of the power supply component, a negative voltage power supply circuit connected to the negative terminal of the power supply component, and a positive / negative voltage switching circuit for periodically connecting or disconnecting the positive voltage power supply circuit and the negative voltage power supply circuit to provide the alternating current. A power control circuit configured to control the power output to the heating element of the atomizer based on temperature information obtained through the temperature detection device; and An output drive circuit, which is connected to the power supply circuit and the power control circuit, outputs drive current to the heating element.

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