Heating element, atomizer, and electronic atomization device
By setting a heating unit with uneven resistance ratio and power distribution in the heating element, the problem of insufficient supply of fragrance compounds caused by the uneven heating of liquid matrix is solved, and the fragrance of aerosol is fully atomized and the condensate is reduced.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- SHENZHEN FIRST UNION TECH CO LTD
- Filing Date
- 2025-11-20
- Publication Date
- 2026-06-04
AI Technical Summary
The uneven heating of the liquid matrix in existing atomizing components leads to insufficient aerosolization, resulting in a lack of flavor compounds and a tendency to form condensate.
The heating element design ensures that the resistance ratio between the first heating unit and the second heating unit is between 0.70 and 0.92. The first heating unit is allocated more power and is located closer to the air outlet on the airflow path, while the second heating unit is allocated less power and is located farther from the air outlet on the airflow path, resulting in an uneven heat distribution.
This increases the supply of aroma compounds in aerosols, reduces the formation of condensate, and ensures that the aroma of aerosols is fully restored.
Smart Images
Figure CN2025136445_04062026_PF_FP_ABST
Abstract
Description
Heating elements, atomizers and electronic atomization devices
[0001] Cross-reference of related applications
[0002] This application claims priority to Chinese Patent Application No. 202411749255.8, filed on November 29, 2024, entitled “Heating Element, Atomizer and Electronic Atomizing Device”, the entire contents of which are incorporated herein by reference.
[0003] Technical Field
[0004] This application relates to the field of atomization technology, and in particular to a heating element, an atomizer, and an electronic atomization device. Background Technology
[0005] Traditional tobacco products (e.g., cigarettes, cigars, etc.) produce tobacco smoke through combustion during use. Existing technologies offer alternatives to these traditional tobacco products by releasing compounds through heating without combustion. Examples of such products are electronic atomizing devices, which typically comprise an atomizable liquid matrix and an atomizing component that heats the liquid matrix to atomize it, thereby producing inhalable vapor or aerosol. The liquid matrix may contain nicotine and / or flavorings and / or aerosol-generating substances (e.g., glycerin).
[0006] Existing atomizing components typically include a liquid guiding element and a heating element integrated with the liquid guiding element. The liquid guiding element draws in the liquid matrix and transfers it to the heating element for heating and atomization. As an example of existing technology, the heating element includes multiple heating units arranged at intervals along the airflow path. These heating units are evenly distributed and have consistent heating power during operation. While this heating element provides relatively uniform heat distribution and is less prone to generating localized high temperatures, the uniform atomization of the liquid matrix in the airflow path can lead to a negative taste experience, particularly hindering the full atomization and reduction of flavor compounds in the liquid matrix. For instance, the uniform heat distribution can easily result in more condensation at the suction end of the aerosol generated from the liquid matrix, leading to an insufficient supply of flavor compounds to the user. Summary of the Invention
[0007] This application provides a heating element capable of aerosolizing a non-uniform liquid matrix, thereby promoting the full atomization and reduction of aroma compounds in the liquid matrix, as well as an atomizer and an electronic atomization device having the heating element.
[0008] At least one embodiment of this application provides an atomizer, including:
[0009] The liquid storage chamber is used to store atomizable liquid matrix;
[0010] An atomizing assembly includes a first liquid guiding element and a heating element coupled to or in contact with the first liquid guiding element, wherein the first liquid guiding element is used to absorb and conduct the liquid matrix to the heating element, and the heating element is used to heat the liquid matrix to generate an aerosol.
[0011] An air inlet and an air outlet are provided, with an airflow path between the air inlet and the air outlet for guiding the aerosol output;
[0012] The heating element includes a first heating unit and a second heating unit spaced apart along the airflow path, and the resistance ratio of the first heating unit to the second heating unit is between 0.70 and 0.92.
[0013] In one embodiment, the resistance ratio of the first heating unit to the second heating unit is between 0.70 and 0.85.
[0014] In one embodiment, the resistance ratio of the first heating unit to the second heating unit is between 0.70 and 0.80.
[0015] In one embodiment, the heating elements are arranged such that, when the guiding current passes through the first heating unit and the second heating unit, the heating unit closer to the air outlet receives more electrical power.
[0016] In one embodiment, the electrical power allocated to the first heating unit is greater than the electrical power allocated to the second heating unit, and the distance between the first heating unit and the air inlet is greater than the distance between the second heating unit and the air inlet.
[0017] In one embodiment, the electrical power allocated to the first heating unit is greater than the electrical power allocated to the second heating unit, and the first heating unit is located downstream of the second heating unit along the airflow direction in the airflow path.
[0018] In one embodiment, the first heating unit and the second heating unit are connected in parallel.
[0019] In one embodiment, the heating element further includes a first electrode lead and a second electrode lead for guiding current, wherein the first heating unit and the second heating unit are electrically connected in parallel between the first electrode lead and the second electrode lead.
[0020] In one embodiment, the heating element further includes a first electrode portion and a second electrode portion disposed opposite to each other, wherein the first electrode lead is electrically connected to the first electrode portion and the second electrode lead is electrically connected to the second electrode portion.
[0021] In one embodiment, the first electrode lead or the second electrode lead has an extension that extends away from the first heating unit and the second heating unit to connect to a voltage source, wherein the second heating unit is closer to the extension than the first heating unit.
[0022] In one embodiment, both the first heating unit and the second heating unit extend between the first electrode lead and the second electrode lead in a bent or flexed manner, and there are multiple connecting segments between the first heating unit and the second heating unit that are substantially parallel to the first electrode lead or the second electrode lead.
[0023] In one embodiment, the current path length of the first heating unit is less than the current path length of the second heating unit.
[0024] In one embodiment, both the first heating unit and the second heating unit are formed by periodically alternating at least two resistor segments to create a sawtooth shape, and the included angle between two adjacent resistor segments in the first heating unit is greater than the included angle between two adjacent resistor segments in the second heating unit.
[0025] In one embodiment, the cross-sectional area of the heating circuit of the first heating unit is larger than the cross-sectional area of the heating circuit of the second heating unit.
[0026] In one embodiment, the heating circuits of both the first heating unit and the second heating unit are formed by connecting multiple resistor segments in sequence, and the resistance values of the resistor segments in the first heating unit and / or the second heating unit are not exactly the same.
[0027] In one embodiment, the first heating unit and / or the second heating unit includes a first segment, a second segment, and a third segment arranged along the extension direction, the second segment being located between the first segment and the third segment, and the resistance of the second segment being less than the resistance of the first segment and the third segment.
[0028] At least one embodiment of this application also provides a heating element, comprising:
[0029] The first electrode lead and the second electrode lead are used to guide current;
[0030] The heating element includes a first heating unit and a second heating unit, which are electrically connected between the first electrode lead and the second electrode lead, and are used to heat the liquid matrix to generate an aerosol.
[0031] The first heating unit and the second heating unit are spaced apart along the extension direction of the first electrode lead and / or the second electrode lead, and the resistance ratio of the first heating unit and the second heating unit is between 0.70 and 0.92.
[0032] In one embodiment, both the first electrode lead and the second electrode lead have an extension that extends away from the heating portion to connect to a voltage source, the second heating unit is closer to the extension than the first heating unit, and the electrical power allocated to the first heating unit is greater than the electrical power allocated to the second heating unit.
[0033] In one embodiment, the first heating unit and the second heating unit are connected in parallel between the first electrode lead and the second electrode lead.
[0034] In one embodiment, it includes the atomizer described in the above embodiments, and a power supply component for providing electrical power to the atomizer.
[0035] The atomizer provided in the above embodiments sets the resistance ratio of the first heating unit and the second heating unit in the atomizer between 0.70 and 0.92, thereby making the first heating unit and the second heating unit in a non-uniform distribution state. This reduces the condensate formed at the suction end of the aerosol generated by the liquid matrix, thereby increasing the supply of aroma compounds in the aerosol, so that the aerosol generated after atomization can maintain a good aroma. Attached Figure Description
[0036] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.
[0037] Figure 1 is a perspective view of an atomizer provided in one embodiment of this application in one direction;
[0038] Figure 2 is a three-dimensional schematic diagram of the atomizer in Figure 1 from another direction;
[0039] Figure 3 is a cross-sectional view of the atomizer in Figure 1 in one direction;
[0040] Figure 4 is a schematic diagram of the assembly of the first liquid guiding component and the heating element of the atomizer in Figure 3;
[0041] Figure 5 is a schematic diagram of the structure of the heating element in Figure 4 when it is unfolded;
[0042] Figure 6 is a schematic diagram of the structure of the heating element in Figure 4 when it is unfolded;
[0043] Figure 7 is a schematic diagram of the structure of the heating element when it is deployed according to another embodiment of this application;
[0044] Figure 8 is a schematic diagram of the aroma intensity of the atomizer aerosol at 6.5W power versus the resistance ratio between the upper and lower heating elements.
[0045] Figure 9 is a schematic diagram of the aroma intensity of the atomizer aerosol at 7W power versus the resistance ratio between the upper and lower heating elements.
[0046] Figure 10 is a schematic diagram of the aroma intensity of the atomizer aerosol at 7.5W power versus the resistance ratio between the upper and lower heating elements.
[0047] Figure 11 is a schematic diagram of the aroma intensity of the atomizer aerosol at 8W power versus the resistance ratio between the upper and lower heating elements.
[0048] Figure 12 is a schematic diagram of the aroma intensity of the atomizer's aerosol at 8.5W power versus the resistance ratio between the upper and lower heating elements.
[0049] Figure 13 is a schematic diagram of the aroma intensity of the atomizer aerosol at 9W power versus the resistance ratio between the upper and lower heating elements.
[0050] Figure 14 is a schematic diagram of the aroma intensity of the atomizer aerosol at 10.8W power versus the resistance ratio between the upper and lower heating elements.
[0051] Figure 15 is a schematic diagram showing the comparison curves of aroma intensity of aerosol and resistance ratio between upper and lower heating elements under different power levels of the atomizer.
[0052] Figure 16 is a schematic diagram showing the resistance ratio between the neotame compound and the upper and lower heating elements of the atomizer at a power of 9W.
[0053] Figure 17 is a schematic diagram showing the resistance ratio between the neotame compound and the upper and lower heating elements of the atomizer at a power of 10.8W.
[0054] Figure 18 is a schematic diagram of the structure of an electronic atomizing device provided in an embodiment of this application. Embodiments of the present invention
[0055] To facilitate understanding of this application, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as being "fixed to" or "attached to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as being "connected to" another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "upper," "lower," "left," "right," "inner," "outer," and similar expressions used in this specification are for illustrative purposes only.
[0056] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the application. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.
[0057] Furthermore, the technical features involved in the different embodiments of this application described below can be combined with each other as long as they do not conflict with each other.
[0058] In the embodiments of this application, "installation" includes fixing or restricting a component or device to a specific position or place by means of welding, screwing, snapping, bonding, etc. The component or device may remain stationary in the specific position or place or may move within a limited range. After the component or device is fixed or restricted to the specific position or place, it may or may not be disassembled. This application does not impose any restrictions.
[0059] Furthermore, the terms "first" and "second" 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. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0060] One embodiment of this application provides an atomizer 100 for atomizing a liquid matrix to generate an aerosol, as shown in Figures 1-4. The atomizer 100 includes a housing 10 and a base 20. The housing 10 has a first end 11 and a second end 12 disposed opposite to each other along its length. The first end 11 forms an air outlet 111, which is used to provide an airflow outlet for the aerosol to escape from the atomizer 100. The user can inhale the aerosol by inhaling through the air outlet 111. The second end 12 is open, and at least a portion of the base 20 extends into the housing 10 through the opening of the second end 12 to support the components in the housing 10.
[0061] A liquid storage chamber 13 is formed in the housing 10. The liquid storage chamber 13 is used to store atomizable liquid matrix. A first air guide tube 14 extends longitudinally in the liquid storage chamber 13. The first air guide tube 14 is connected to the mouthpiece 111. The first air guide tube 14 is used to transport the atomized aerosol to the mouthpiece 111 for the user to inhale.
[0062] The liquid storage chamber 13 is provided with a second liquid guiding member 15 surrounding the inner wall of the housing 10, and a liquid storage member 16 in contact with the second liquid guiding member 15. The second liquid guiding member 15 is used to absorb the liquid matrix in the liquid storage chamber 13 and transfer the liquid matrix to the liquid storage member 16 for storage.
[0063] Both the second liquid guiding element 15 and the liquid storage element 16 are made of porous materials, such as cotton fiber, non-woven fabric, fiberglass rope, porous ceramics, or porous glass, so that the first liquid guiding element 15 and the liquid storage element 16 can absorb the liquid matrix and transfer the liquid matrix through the internal gaps or microporous structure.
[0064] The liquid storage component 16 is provided with a longitudinal through-hole (not shown) penetrating its body. A second air guide tube 17, communicating with the first air guide tube 14, is disposed in the through-hole. An atomizing component 18 is disposed in the second air guide tube 17. The atomizing component 18 includes a first liquid guide component 181 and a heating element 182 attached to or in contact with the first liquid guide component 181. The first liquid guide component 181 has a longitudinal through-hole 1811, thereby giving the first liquid guide component 181 an outer surface 1812 and an inner surface 1813. The heating element 182 is attached to the inner surface 1813. The tube wall of the second air guide tube 17 is provided with a notch (not shown). A portion of the first liquid guide component 18 passes through the notch and contacts the liquid storage component 16 to draw in the liquid matrix in the liquid storage component 16 and transfer the liquid matrix to the heating element 182 on the inner surface. The heating element 182 heats and atomizes the liquid matrix to generate an aerosol, which is then released into the second air guide tube 17.
[0065] The first liquid guiding element 181 is typically made of the aforementioned porous material, thereby enabling it to draw liquid matrix from the liquid storage element 16 and transfer the liquid to the heating element 182 on the inner surface 1813. Correspondingly, the heating element 182 may be attached to the first liquid guiding element 181 or wound around the first liquid guiding element 181 by means of printing, deposition, sintering, or physical assembly.
[0066] The base 20 is provided with an air inlet 22 and an electrode hole. The air inlet 22 is used to provide an airflow inlet for external air to enter the atomizer 100. A conductive electrode 21 is provided in the electrode hole. The conductive electrode 21 is electrically connected to the electrode lead 1821 of the heating element 182. A part of the conductive electrode 21 is exposed on the end face of the base 20, so that it is electrically connected to the external power supply component through the exposed part, thereby enabling the power supply component to provide power to the heating element 182.
[0067] The first liquid guide 15 has a through hole (not shown in the figure). The first air guide tube 14 extends through the through hole into the second air guide tube 17. When the user inhales at the mouthpiece 111, a negative pressure is generated inside the atomizer 100. External air enters the atomizer 100 through the air inlet 22 and flows further into the second air guide tube 17 through the internal air passage of the atomizer 100. Then, it carries the aerosol generated by the atomizing component in the second air guide tube 17 into the first air guide tube 14. Finally, it flows through the first air guide tube 14 to the air outlet 111 for the user to inhale. In other words, an airflow path for aerosol output is provided between the air inlet 22 and the air outlet 111. This airflow path is shown by the arrow route R1 in Figure 3.
[0068] Please refer to Figure 5. The heating element 182 includes a first electrode portion 1822 and a second electrode portion 1823 disposed opposite to each other, as well as a first electrode lead 18211 and a second electrode lead 18212 disposed opposite to each other. The first electrode lead 18211 and the first electrode portion 1822 are electrically connected, and the second electrode lead 18212 and the second electrode portion 1823 are electrically connected. The heating element 182 also includes a first heating unit 1824 and a second heating unit 1825 electrically connected between the first electrode portion 1822 and the second electrode portion 1823. The first heating unit 1824 is the part enclosed by the dashed box B1 in Figure 5, and the second heating unit 1825 is the part enclosed by the dashed box B2 in Figure 5. The first heating unit 1824 and the second heating unit 1825 serve as the heating parts of the heating element 182 to heat the liquid matrix in the atomizer 100 and thereby generate an aerosol. The first electrode lead 18211 and the second electrode lead 18212 are used to guide the current provided by the external power supply component to the first electrode part 1822 and the second electrode part 1823, thereby providing power to the first heating unit 1824 and the second heating unit 1825 which are electrically connected between the first electrode part 1822 and the second electrode part 1823.
[0069] As shown in Figure 6, the first heating unit 1824 and the second heating unit 1825 are both formed by connecting multiple resistor segments 1827 of the same shape in sequence, that is, the segments in the dashed box in Figure 6. The shape of the resistor segment 1827 can be a "V" shape as shown in Figure 6; or the shape of the resistor segment 1827 can also be a wave shape or a square wave shape, so that the first heating unit 1824 and the second heating unit 1825 extend between the first electrode lead 18211 and the second electrode lead 18212 in a bent or curved manner.
[0070] In this configuration, the first heating unit 1824 and the second heating unit 1825 are spaced apart in the airflow path R1. The distance between the first heating unit 1824 and the air outlet 111 is less than the distance between the second heating unit 1825 and the air outlet 111. Specifically, as shown in Figure 3, the first heating unit 1824 is located above the second heating unit 1825. Alternatively, along the airflow direction of the airflow path R1, the first heating unit 1824 is located downstream of the second heating unit 1825. Furthermore, the heating power of the first heating unit 1824 is greater than that of the second heating unit 1825. Heating power refers to the heat generated by the first heating unit 1824 and the second heating unit 1825 per unit time. Alternatively, it can be said that the electrical power allocated to the first heating unit 1824 is greater than that allocated to the second heating unit 1825. As a result, the heat generated by the first heating unit 1824 per unit time is greater than that generated by the second heating unit 1825 per unit time. Consequently, the amount of aerosol generated by the heating and atomization of the first heating unit 1824 is greater than that generated by the heating and atomization of the second heating unit 1825.
[0071] Because the heating power of the first heating unit 1824 on the heating element 182 is greater than that of the second heating unit 1825, the amount of aerosol generated by the first heating unit 1824 heating the liquid matrix is greater than that generated by the second heating unit 1825 heating the liquid matrix within the same heating time. Furthermore, since the first heating unit 1824 is closer to the air outlet 111 than the second heating unit 1825, less of the aerosol generated by the first heating unit 1824 is condensed during the output process. At the same time, the larger amount of aerosol generated by the first heating unit 1824 promotes the full atomization and reduction of fragrance compounds in the liquid matrix, increasing the content of fragrance compounds in the aerosol and enabling the aerosol to maintain a better fragrance.
[0072] In some embodiments, as shown in FIG3, since the first heating unit 1824 is located above the second heating unit 1825, the distance between the first heating unit 1824 and the air inlet 22 is greater than the distance between the second heating unit 1825 and the air inlet 22. That is, relative to the second heating unit 1825, the first heating unit 1824 is closer to the air outlet 111 and farther from the air inlet 22, which can reduce the cooling effect of the outside air on the aerosol generated by the first heating unit 1824, which is beneficial to increasing the content of fragrance compounds in the aerosol.
[0073] In some embodiments, in order to make the first heating unit 1824 and the second heating unit 1825 have better heating efficiency, the first heating unit 1824 and the second heating unit 1825 are preferably made of one of the following materials: iron-chromium-aluminum alloy, nickel-chromium alloy, stainless steel or titanium alloy.
[0074] In some embodiments, as shown in FIG5, the first heating unit 1824 and the second heating unit 1825 are connected in parallel between the first electrode lead 18211 and the second electrode lead 18212. That is, the first heating unit 1824 and the second heating unit 1825 are independently electrically connected to the first electrode lead 18211 and the second electrode lead 18212. Therefore, the voltages across the first heating unit 1824 and the second heating unit 1825 are the same. At this time, as long as the resistance of the first heating unit 1824 is less than the resistance of the second heating unit 1825, the heating power of the first heating unit 1824 can be greater than the heating power of the second heating unit 1825. This is because, under the same voltage, the current flowing through the first heating unit 1824 is greater than the current flowing through the second heating unit 1825.
[0075] It is easy to understand that in some embodiments, the first heating unit 1824 and the second heating unit 1825 can also be connected in series between the first electrode lead 18211 and the second electrode lead 18212. In this case, the resistance of the first heating unit 1824 needs to be greater than the resistance of the second heating unit 1825. This is because, in the case of series connection, the current flowing through the first heating unit 1824 and the second heating unit 1825 is equal. Therefore, under the condition of equal current, the resistance of the first heating unit 1824 is greater than the resistance of the second heating unit 1825, and the heating power of the first heating unit 1824 will also be greater than the heating power of the second heating unit 1825.
[0076] It should be noted that the first heating unit 1824 and the second heating unit 1825 are connected in parallel, which also allows the first heating unit 1824 and the second heating unit 1825 to work simultaneously or at different times, so that the atomizer can achieve more functions.
[0077] Further, as shown in FIG5, the first electrode lead 18211 includes an electrical connection portion 18211a disposed on the first electrode portion 1822 for electrical connection with the first electrode portion 1822, and a first extension portion 18211b extending from the electrical connection portion 18211a away from the first heating unit 1824 and the second heating unit 1825 to connect to a voltage source. Correspondingly, the second electrode lead 18212 may also include an electrical connection portion 18212a disposed on the second electrode portion 1823 for electrical connection with the second electrode portion 1823, and a second extension portion 18212b extending from the electrical connection portion 18212a away from the first heating unit 1824 and the second heating unit 1825 to connect to a voltage source. It is easy to understand that the first extension portion 18211b and the second extension portion 18212b are respectively electrically connected to the conductive electrode 21, thereby connecting to the voltage source in the external power supply through the conductive electrode 21. Furthermore, the second heating unit 1825 is closer to the first extension 18211b and the second extension 18212b than the first heating unit 1824. Consequently, when the heating element 182 is assembled into the atomizer 100, the first heating unit 1824 will be closer to the air outlet 111 than the second heating unit 1825.
[0078] In some embodiments, the heating circuits of the first heating unit 1824 and the second heating unit 1825 have the same cross-sectional area, but the current path length of the first heating unit 1824 is less than that of the second heating unit 1825, thereby making the resistance of the first heating unit 1824 less than that of the second heating unit 1825, so that when the first heating unit 1824 and the second heating unit 1825 are arranged in parallel, the heating power of the first heating unit 1824 is greater than that of the second heating unit 1825.
[0079] Specifically, as shown in Figure 6, both the first heating unit 1824 and the second heating unit 1825 are formed by periodically alternating connections of at least two resistor segments 1827 to form a sawtooth shape, that is, the shape of the resistor segments 1827 is "V" shaped. Furthermore, the included angle A between two adjacent resistor segments 1827 in the first heating unit 1824 is greater than the included angle B between two adjacent resistor segments 1827 in the second heating unit 1825, thereby making the current path length of the first heating unit 1824 less than the current path length of the second heating unit 1825.
[0080] Alternatively, in some embodiments, the heating circuits of the first heating unit 1824 and the second heating unit 1825 have the same current path length, but the cross-sectional area of the heating circuit of the first heating unit 1824 is larger than that of the heating circuit of the second heating unit 1825, thereby making the resistance of the first heating unit 1824 smaller than that of the second heating unit 1825, so that when the first heating unit 1824 and the second heating unit 1825 are arranged in parallel, the heating power of the first heating unit 1824 is greater than that of the second heating unit 1825.
[0081] It is easy to understand that when the first heating unit 1824 and the second heating unit 1825 are connected in series, if the cross-sectional areas of the heating lines of the first heating unit 1824 and the second heating unit 1825 are the same, the extension length of the heating line of the first heating unit 1824 needs to be greater than the extension length of the heating line of the second heating unit 1825, thereby making the resistance of the first heating unit 1824 greater than the resistance of the second heating unit 1825. Alternatively, if the heating lines of the first heating unit 1824 and the second heating unit 1825 have the same extension length, the cross-sectional area of the heating line of the first heating unit 1824 needs to be smaller than the cross-sectional area of the heating line of the second heating unit 1825, thereby making the resistance of the first heating unit 1824 greater than the resistance of the second heating unit 1825.
[0082] Furthermore, in some embodiments, when the cross-sectional area and extension length of the heating circuits of the first heating unit 1824 and the second heating unit 1825 are the same, the resistance between the first heating unit 1824 and the second heating unit 1825 can be controlled by adjusting the resistivity of the materials of the first heating unit 1824 and the second heating unit 1825.
[0083] In some embodiments, the resistance values of the resistive segments 1827 in the first heating unit 1824 and / or the second heating unit 1825 are not exactly the same. In this way, the heat distribution of the first heating unit 1824 and / or the second heating unit 1825 can be adjusted so that the heat in a local area of the first heating unit 1824 and / or the second heating unit 1825 is higher or lower.
[0084] In one specific embodiment, as shown in FIG7, the first heating unit 1824 or the second heating unit 1825 includes a first segment 1828a, a second segment 1828b and a third segment 1828c arranged sequentially along its extension direction, wherein the second segment 1828b is located between the first segment 1828a and the third segment 1828c. Furthermore, the current path length in the second segment 1828b is shorter than that in the first segment 1828a and the third segment 1828c. Consequently, the resistance of the second segment 1828b is less than that of the first segment 1828a and the third segment 1828c. Since the first segment 1828a, the second segment 1828b, and the third segment 1828c are connected in series, the heating power of the second segment 1828b is also less than that of the first segment 1828a and the third segment 1828c. Consequently, the heat generated by the second segment 1828b is less than that generated by the first segment 1828a and the third segment 1828c. Since the central area tends to accumulate heat, resulting in a higher temperature in the central area than in the side areas, the resistance of the second section 1828b is set to be lower than that of the first section 1828a and the third section 1828c. This is beneficial for the first heating unit 1824 or the second heating unit 1825 to generate a uniform temperature field.
[0085] It's easy to understand that, in order to make the resistance of the second segment 1828b less than that of the first segment 1828a and the third segment 1828c, the cross-sectional area of the heating circuit in the second segment 1828b can be made larger than that of the first segment 1828a and the third segment 1828c. Alternatively, the resistivity of the heating material in the second segment 1828b can be lower than that of the heating material in the first segment 1828a and the third segment 1828c.
[0086] In some embodiments, as shown in FIG5, the first heating unit 1824 and the second heating unit 1825 are further provided with a plurality of connecting segments 1829 that are substantially parallel to the first electrode lead 18211 and the second electrode lead 18212. The connecting segments 1829 are used to connect the first heating unit 1824 and the second heating unit 1825. The connecting segments are made of a material with a certain rigidity and good thermal conductivity. On the one hand, when the heating element 182 is assembled onto the first liquid guiding component 181, the connecting segments 1829 can provide support for the first liquid guiding component 181 to prevent deformation of the first liquid guiding component 181. On the other hand, they can also conduct heat to the first heating unit 1824 and the second heating unit 1825 to prevent the temperature of the first heating unit 1824 and the second heating unit 1825 from becoming too high.
[0087] The aroma intensity produced by the aerosol is related to the resistance ratio between the upper and lower heating elements. The upper heating element is the heating unit closest to the air outlet 111 in the first heating unit 1824 and the second heating unit 1825, while the lower heating element is the heating unit furthest from the air outlet 111 in the first heating unit 1824 and the second heating unit 1825. See Figures 8-14 for the curves showing the aroma intensity of the aerosol and the resistance ratio between the upper and lower heating elements at different output powers. These curves are based on actual test results.
[0088] When the resistance ratio between the first heating unit 1824 and the second heating unit 1825 is 0.71 to 0.92, that is, the resistance of the first heating unit 1824 is less than the resistance of the second heating unit 1825, the first heating unit 1824 is used as the upper heating element and the second heating unit 1825 is used as the lower heating element. The resistance ratio between the upper and lower heating elements is in the range of 0.70 to 0.92. According to Figures 8-14, when the resistance ratio between the upper and lower heating elements is in this range, the aroma intensity of the aerosol produced by the atomizer 100 is better than that when the resistance ratio between the upper and lower heating elements is 1:1.
[0089] When the positions of the first heating unit 1824 and the second heating unit 1825 are swapped, that is, when the second heating unit 1825 is used as the upper heating element and the first heating unit 1824 is used as the lower heating element, the resistance of the upper heating element will be greater than that of the lower heating element. The resistance ratio between the upper and lower heating elements will be in the range of 1.09 to 1.42. According to Figures 8-14, when the resistance ratio between the upper and lower heating elements is in this range, the aroma intensity of the aerosol produced by the atomizer 100 is still better than that when the resistance ratio between the upper and lower heating elements is 1:1.
[0090] Furthermore, when the resistance ratio between the first heating unit 1824 and the second heating unit 1825 is 0.70 to 0.85, if the first heating unit 1824 is used as the upper heating element and the corresponding second heating unit 1825 is used as the lower heating element, then the resistance ratio between the upper heating element and the lower heating element is between 0.70 and 0.85. According to Figures 8-14, when the resistance ratio between the upper heating element and the lower heating element is in this range, the aroma intensity of the aerosol produced by the atomizer 100 after atomization will be better than the aroma intensity when the resistance ratio between the upper heating element and the lower heating element is 1:1.
[0091] Similarly, when the positions of the first heating unit 1824 and the second heating unit 1825 are interchanged, that is, when the second heating unit 1825 is used as the upper heating element and the first heating unit 1824 is used as the lower heating element, the resistance of the upper heating element will be greater than that of the lower heating element. The resistance ratio between the upper and lower heating elements will be between 1.18 and 1.42. According to Figures 8-14, when the resistance ratio between the upper and lower heating elements is in this range, the aroma intensity of the aerosol produced by the atomizer 100 is still better than that when the resistance ratio between the upper and lower heating elements is 1:1.
[0092] Furthermore, when the resistance ratio between the first heating unit 1824 and the second heating unit 1825 is 0.70 to 0.80, and when the first heating unit 1824 is the upper heating element and the second heating unit 1825 is the lower heating element, the resistance ratio between the upper heating element and the lower heating element is between 0.70 and 0.80, as shown in Figure 15. Figure 15 shows a schematic diagram of the comparison curves of the atomizer 100 under different output powers. It can be seen from Figure 15 that when the atomizer 100 has an output power of 7W and the resistance ratio between the upper heating element and the lower heating element is between 0.70 and 0.80, the aroma intensity of the aerosol produced after atomization is even better than that when the atomizer 100 has an output power of 9W and the resistance ratio between the upper heating element and the lower heating element is 1:1.
[0093] Furthermore, when the atomizer 100 has an output power of 9W and the resistance ratio between the upper and lower heating elements is between 0.70 and 0.80, the aroma intensity of the aerosol produced after atomization is not significantly different from that produced when the atomizer 100 has an output power of 10.8W and the resistance ratio between the upper and lower heating elements is 1:1.
[0094] Meanwhile, it can also be seen from Figures 8-14 that when the resistance ratio between the first heating unit 1824 and the second heating unit 1825 is 0.70 to 0.80, and the first heating unit 1824 acts as the upper heating element and the second heating unit 1825 acts as the lower heating element, the resistance ratio between the upper heating element and the lower heating element is 0.70 to 0.80. In this range, the increase in aroma intensity of the aerosol produced after atomization by the atomizer 100 is most significant compared to when the resistance ratio between the upper heating element and the lower heating element is 1:1. In other words, the aroma of the aerosol produced after atomization is best when the resistance ratio between the upper heating element and the lower heating element is 0.70 to 0.80.
[0095] By swapping the positions of the first heating unit 1824 and the second heating unit 1825, that is, by making the second heating unit 1825 the upper heating element and the first heating unit 1824 the lower heating element, the resistance ratio between the upper and lower heating elements is between 1.25 and 1.42. As can be seen from Figures 8-14, when the resistance ratio between the upper and lower heating elements is in the range of 1.25 to 1.42, the increase in aroma intensity of the aerosol produced by the atomizer 100 is most significant compared to when the resistance ratio between the upper and lower heating elements is 1:1.
[0096] In summary, when the resistance values of the first heating unit 1824 and the second heating unit 1825 are inconsistent, that is, when the first heating unit 1824 and the second heating unit 1825 are not uniformly arranged, and when the resistance ratio of the first heating unit 1824 and the second heating unit 1825 is in the range of 0.70 to 0.92, the condensate formed at the suction end of the aerosol generated by the liquid matrix can be reduced, thereby increasing the supply of fragrance compounds in the aerosol, so that the aerosol generated after atomization can maintain a better fragrance.
[0097] Furthermore, referring to Figures 16 and 17, respectively, they provide schematic diagrams showing the response values of the neotame compound in the liquid matrix and the resistance ratios between the upper and lower heating elements at 9W and 10.8W power, respectively. The response values of the neotame compound can be determined by high-performance liquid chromatography (HPLC). A higher response value indicates a higher delivery efficiency of the neotame compound, resulting in a better-tasting aerosol.
[0098] When the resistance ratio between the upper and lower heating elements falls within the preferred range of 0.70 to 0.80, the response value of the neotame compound is higher than when the resistance ratio between the upper and lower heating elements is 1:1. In other words, when the resistance ratio between the upper and lower heating elements is in the range of 0.70 to 0.80, the delivery efficiency of the neotame compound is better.
[0099] Furthermore, comparing Figures 16 and 17 reveals that when the resistance ratio between the upper and lower heating elements is around 0.7, the response value of the neotame compound in atomizer 100 at 9W power is even better than that in atomizer 100 at 10.8W power when the resistance ratio between the upper and lower heating elements is 1:1.
[0100] Furthermore, in some embodiments, the specific resistance values of the first heating unit 1824 and the second heating unit 1825 can be selected between 1.5 ohms and 3.0 ohms, so that the total resistance value after the first heating unit 1824 and the second heating unit 1825 are connected in parallel can generate appropriate electrical power, thereby enabling the heating element 182 to reach a suitable target temperature, thereby heating the liquid matrix to fully atomize it and generate aerosol.
[0101] Preferably, the first heating unit 1824 has a resistance of 1.8 ohms to 2.4 ohms, and the second heating unit 1825 has a resistance of 2.5 ohms to 3.0 ohms. More preferably, the first heating unit 1824 has a resistance of 2.0 ohms to 2.2 ohms, and the second heating unit 1825 has a resistance of 2.6 ohms to 2.8 ohms. And, even more preferably, the first heating unit 1824 has a resistance of 2.0 ohms to 2.1 ohms, and the second heating unit 1825 has a resistance of 2.7 ohms to 2.8 ohms.
[0102] It should be noted that when calculating the resistance ratio of the first heating unit 1824 and the second heating unit 1825, a scanning electron microscope can be used to measure the cross-sectional area or length of the heating circuit in the first heating unit 1824 and the second heating unit 1825. Then, according to the resistance calculation formula R = ρL / S, where R represents the resistance value, ρ represents the resistivity of the material, L represents the length of the conductor, and S represents the cross-sectional area of the conductor, the length or cross-sectional area of the first heating unit 1824 and the second heating unit 1825 measured by the scanning electron microscope can be compared to obtain the resistance ratio between the first heating unit 1824 and the second heating unit 1825.
[0103] An embodiment of this application also proposes an electronic atomization device, as shown in FIG18, including an atomizer 100 that stores a liquid matrix and atomizes it to generate an aerosol, and a power supply component 200 that supplies power to the atomizer 100.
[0104] In an alternative implementation, such as shown in FIG18, the power supply assembly 200 includes a receiving cavity 270 disposed at one end along the length direction for receiving and accommodating at least a portion of the atomizer 100, and an electrical contact 230 at least partially exposed on the surface of the receiving cavity 270 for forming an electrical connection with the conductive electrode 21 of the atomizer 100 when at least a portion of the atomizer 100 is received and accommodated within the power supply assembly 200, thereby supplying power to the atomizer 100.
[0105] A seal 260 is provided within the power assembly 200, and the seal 260 divides at least a portion of the internal space of the power assembly 200 to form the receiving cavity 270. In the preferred embodiment shown in FIG18, the seal 260 is configured to extend along the cross-sectional direction of the power assembly 200, and is preferably made of a flexible material such as silicone, thereby preventing the liquid matrix that seeps from the atomizer 100 into the receiving cavity 270 from flowing into components such as the controller 220 and sensor 250 inside the power assembly 200.
[0106] In the preferred embodiment shown in FIG18, the power supply assembly 200 further includes a battery cell 210 for power supply located at the other end of the receiving cavity 270 along the length direction; and a controller 220 disposed between the battery cell 210 and the receiving cavity 270, the controller 220 being operable to guide current between the battery cell 210 and the electrical contact 230.
[0107] In use, the power supply assembly 200 includes a sensor 250 for sensing the airflow generated when inhaling through the atomizer 100, and then the controller 220 controls the battery cell 210 to output current to the atomizer 100 according to the detection signal of the sensor 250.
[0108] In a further preferred embodiment shown in Figure 18, the power supply assembly 200 is provided with a charging interface 240 at the other end opposite to the receiving cavity 270 for charging the battery cell 210.
[0109] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them; under the concept of this application, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of this application as described above, which are not provided in detail for the sake of brevity; although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.
Claims
1. An atomizer, characterized in that, include: The liquid storage chamber is used to store atomizable liquid matrix; An atomizing assembly includes a first liquid guiding element and a heating element coupled to or in contact with the first liquid guiding element, wherein the first liquid guiding element is used to absorb and conduct the liquid matrix to the heating element, and the heating element is used to heat the liquid matrix to generate an aerosol. An air inlet and an air outlet are provided, with an airflow path between the air inlet and the air outlet for guiding the aerosol output; The heating element includes a first heating unit and a second heating unit spaced apart along the airflow path, and the resistance ratio of the first heating unit to the second heating unit is between 0.70 and 0.
92.
2. The atomizer according to claim 1, characterized in that, The resistance ratio between the first heating unit and the second heating unit is between 0.70 and 0.
85.
3. The atomizer according to claim 1, characterized in that, The resistance ratio between the first heating unit and the second heating unit is between 0.70 and 0.
80.
4. The atomizer according to any one of claims 1-3, characterized in that, The heating elements are arranged such that when the guiding current passes through the first heating unit and the second heating unit, the heating unit closer to the air outlet receives more electrical power.
5. The atomizer according to claim 4, characterized in that, The electrical power allocated to the first heating unit is greater than the electrical power allocated to the second heating unit, and the distance between the first heating unit and the air inlet is greater than the distance between the second heating unit and the air inlet.
6. The atomizer according to claim 4, characterized in that, The first heating unit is allocated more electrical power than the second heating unit, and along the airflow direction in the airflow path, the first heating unit is located downstream of the second heating unit.
7. The atomizer according to claim 4, characterized in that, The first heating unit and the second heating unit are connected in parallel.
8. The atomizer according to claim 7, characterized in that, The heating element further includes a first electrode lead and a second electrode lead for guiding current, and the first heating unit and the second heating unit are electrically connected in parallel between the first electrode lead and the second electrode lead.
9. The atomizer according to claim 8, characterized in that, The heating element further includes a first electrode portion and a second electrode portion disposed opposite to each other, wherein the first electrode lead is electrically connected to the first electrode portion and the second electrode lead is electrically connected to the second electrode portion.
10. The atomizer according to claim 8, characterized in that, The first electrode lead or the second electrode lead has an extension portion that extends away from the first heating unit and the second heating unit to connect to a voltage source, wherein the second heating unit is closer to the extension portion than the first heating unit.
11. The atomizer according to claim 8, characterized in that, Both the first heating unit and the second heating unit extend between the first electrode lead and the second electrode lead in a bent or curved manner, and there are multiple connecting segments between the first heating unit and the second heating unit that are substantially parallel to the first electrode lead or the second electrode lead.
12. The atomizer according to claim 1, characterized in that, The current path length of the first heating unit is less than the current path length of the second heating unit.
13. The atomizer according to claim 1, characterized in that, Both the first heating unit and the second heating unit are formed by periodically alternating at least two resistor segments to create a sawtooth shape. The included angle between two adjacent resistor segments in the first heating unit is greater than the included angle between two adjacent resistor segments in the second heating unit.
14. The atomizer according to claim 1, characterized in that, The cross-sectional area of the heating circuit of the first heating unit is greater than that of the heating circuit of the second heating unit.
15. The atomizer according to claim 1, characterized in that, The heating circuits of both the first heating unit and the second heating unit are formed by connecting multiple resistor segments in sequence, and the resistance values of the resistor segments in the first heating unit and / or the second heating unit are not exactly the same.
16. The atomizer according to claim 15, characterized in that, The first heating unit and / or the second heating unit includes a first section, a second section and a third section arranged along the extension direction, wherein the second section is located between the first section and the third section, and its resistance is less than that of the first section and the third section.
17. A heating element, characterized in that, include: The first electrode lead and the second electrode lead are used to guide current; The heating element includes a first heating unit and a second heating unit, which are electrically connected between the first electrode lead and the second electrode lead, and are used to heat the liquid matrix to generate an aerosol. The first heating unit and the second heating unit are spaced apart along the extension direction of the first electrode lead and / or the second electrode lead, and the resistance ratio of the first heating unit and the second heating unit is between 0.70 and 0.
92.
18. The heating element according to claim 17, characterized in that, Both the first electrode lead and the second electrode lead have an extension that extends away from the heating portion to connect to a voltage source. The second heating unit is closer to the extension than the first heating unit, and the electrical power allocated to the first heating unit is greater than the electrical power allocated to the second heating unit.
19. The heating element according to claim 18, characterized in that, The first heating unit and the second heating unit are connected in parallel between the first electrode lead and the second electrode lead.
20. An electronic atomizing device, characterized in that, It includes the atomizer according to any one of claims 1-16, and a power supply assembly for providing electrical power to the atomizer.