Heating element and atomizer

Abstract

The utility model relates to atomizer technical field, specifically disclose heating body and atomizer. The heating body includes the pot body, bottom heating resistance and circumferential heating resistance, the pot body has the heating groove of opening upward, bottom heating resistance is buried in the groove bottom of heating groove, and bottom heating resistance is coaxially arranged with heating groove, and the resistance value of bottom heating resistance gradually reduces along the radial direction of heating groove, and the resistance value of circumferential heating resistance gradually reduces along from the direction of down to top. The heating body is optimized and is limited to bottom heating resistance and the resistance value of circumferential heating resistance, to improve the roasting effect, improve the smoke production efficiency, reduce the preheating time, improve the temperature control ability, improve the user's smoking experience.

Description

Technical Field

[0001] This utility model relates to the field of atomizer technology, and in particular to a heating element and an atomizer. Background Technology

[0002] As consumers become increasingly focused on health and the smoking experience, low-temperature cigarette products are gradually becoming a popular choice in the market. Currently, low-temperature cigarette products on the market mainly employ several heating methods, including center heating, circumferential heating, and bottom heating. Some products use only a single heating method, such as center heating, bottom heating, or single-segment or segmented circumferential heating. This single heating method has many shortcomings: low heat utilization rate, long preheating time, resulting in less vapor in the first few puffs, greatly affecting the user's smoking experience.

[0003] Some products use a combination of separate bottom heating and circumferential heating, but this design is complex and difficult to assemble.

[0004] Specifically, circumferential heating suffers from uneven heating and difficulty in temperature adjustment. If the temperature is too low, the tobacco cannot be fully baked, resulting in less smoke and a longer preheating time; if the temperature is too high, the paper on the outside of the cigarette will be scorched, giving the smoke a papery taste and burning the mouth. Bottom heating, on the other hand, easily causes the tobacco at the bottom to scorch, producing a burnt taste, while the tobacco at the top is not fully baked, resulting in tobacco waste.

[0005] In summary, the existing heating methods for low-temperature cigarette products have significant shortcomings in terms of baking effect, smoke generation efficiency, preheating time, temperature control, and design complexity. There is an urgent need for a heating element to solve these problems and improve the user's smoking experience. Utility Model Content

[0006] The purpose of this invention is to provide a heating element and an atomizer to improve the baking effect, increase the efficiency of smoke generation, reduce preheating time, improve temperature control, and enhance the user's vaping experience.

[0007] To achieve this objective, the present invention adopts the following technical solution:

[0008] The heating element includes a pot body, a bottom heating resistor, and a circumferential heating resistor; the pot body has an upward-opening heating groove; the bottom heating resistor is embedded in the bottom of the heating groove and is coaxially arranged with the heating groove, and the resistance value of the bottom heating resistor gradually decreases radially along the heating groove; the circumferential heating resistor is embedded in the side wall of the heating groove, and the resistance value of the circumferential heating resistor gradually decreases from bottom to top.

[0009] As an optional technical solution for the heating element, the sidewall of the heating groove is provided with a microporous ceramic layer; and / or, the bottom of the heating groove is evenly distributed with a number of radiating blind holes.

[0010] As an optional technical solution for the heating element, the porosity of the microporous ceramic layer is 30.0% to 60.0%, and the pore size of the micropores on the microporous ceramic layer is 5.0 μm to 50.0 μm.

[0011] As an optional technical solution for the heating element, the inner diameter of the radiation blind hole is 0.1 mm to 0.5 mm, and the depth of the radiation blind hole is 0.3 mm to 1.2 mm.

[0012] As an optional technical solution for the heating element, the heating groove is a cylindrical groove, the bottom heating resistor is cylindrical, and the circumferential heating resistor is tubular.

[0013] As an optional technical solution for the heating element, the resistance value at the center of the bottom heating resistor is R1, the resistance value at the edge of the bottom heating resistor is R2, and 0.5Ω≤R2<R1≤1.2Ω; and / or, the resistance value at the bottom of the circumferential heating resistor is R3, and the resistance value at the top of the circumferential heating resistor is R4, and 0.5Ω≤R4<R3≤1.2Ω.

[0014] As an optional technical solution for the heating element, the pot body includes a tubular shell and a bottom shell. The tubular shell extends in a vertical direction, and the bottom shell closes the bottom opening of the tubular shell. The bottom shell and the tubular shell together form the heating groove.

[0015] As an optional technical solution for the heating element, the length of the pot body is 10.0mm to 20.0mm, the inner diameter of the heating groove is 5.0mm to 12.0mm, and the wall thickness of the tubular shell is 0.2mm to 1.2mm.

[0016] As an optional technical solution for the heating element, the heating element further includes a first conductive lead wire, a second conductive lead wire, and a third conductive lead wire. The first conductive lead wire is used to connect the input terminal of the bottom heating resistor and the input terminal of the circumferential heating resistor. The second conductive lead wire is used to connect the output terminal of the bottom heating resistor. The third conductive lead wire is used to connect the output terminal of the circumferential heating resistor.

[0017] The atomizer includes a first control unit, a second control unit, and the aforementioned heating element. The first control unit is electrically connected to the bottom heating resistor and is used to control the bottom heating resistor to generate heat. The second control unit is electrically connected to the circumferential heating resistor and is used to control the circumferential heating resistor to generate heat.

[0018] The beneficial effects of this utility model are:

[0019] The bottom heating resistor of the heating element is coaxially arranged with the heating groove, and the resistance value of the bottom heating resistor gradually decreases radially along the heating groove, forming an inward energy-concentrating heating mode. This prioritizes heating the central area of ​​the cigarette, allowing the center of the cigarette to heat up more quickly. The asymmetrical, gradually decreasing resistance distribution design creates a concentric, layered structure of the bottom and circumferential resistance networks, which helps improve the toasting effect on the cigarette and increases smoke generation efficiency. The resistance value of the circumferential heating resistor gradually decreases from bottom to top, achieving a bottom-to-top decreasing heat conduction, preventing overheating at the top and charring of the paper, thus protecting the integrity of the cigarette. The combination of these two features effectively improves the toasting effect on the cigarette, increases smoke volume, and enhances the user's smoking experience. The multi-area coordinated heating of the bottom and circumferential heating resistors rapidly increases the cigarette temperature, shortens preheating time, simplifies temperature control, and effectively improves the toasting effect on the cigarette.

[0020] The atomizer generates heat by controlling the bottom heating resistor and the circumferential heating resistor through the first control unit and the second control unit, respectively. The heating power and temperature of the bottom and circumferential heating can be adjusted independently according to actual needs. With the synergistic effect of bottom and circumferential heating, precise temperature control can be achieved, thereby further improving the baking effect on the cigarette, increasing thermal efficiency, shortening the preheating time, increasing the amount of smoke, and bringing consumers a good smoking experience. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the heating element provided in an embodiment of the present invention from a first-view perspective;

[0022] Figure 2 This is a schematic diagram of the heating element provided in an embodiment of the present invention from a second perspective.

[0023] Figure 3 This is a cross-sectional view of the heating element provided in an embodiment of the present invention.

[0024] In the picture:

[0025] 100. Pot body; 101. Radiation blind hole; 110. Heating groove; 120. Tubular shell; 130. Bottom shell; 140. Microporous ceramic layer;

[0026] 200. Bottom heating resistor;

[0027] 300, circumferential heating resistor;

[0028] 410. First conductor lead-out wiring; 420. Second conductor lead-out wiring; 430. Third conductor lead-out wiring. Detailed Implementation

[0029] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0030] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions. Moreover, "above," "on top of," and "over" the first feature in relation to the second feature includes the first feature directly above and diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "under," and "below" the first feature in relation to the second feature includes the first feature directly below and diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0033] like Figures 1 to 3As shown, this embodiment provides a heating element, including a pot body 100, a bottom heating resistor 200, and a circumferential heating resistor 300; the pot body 100 has a heating groove 110 with an upward opening; the bottom heating resistor 200 is embedded in the bottom of the heating groove 110, and the bottom heating resistor 200 is coaxially arranged with the heating groove 110, and the resistance value of the bottom heating resistor 200 gradually decreases radially along the heating groove 110; the circumferential heating resistor 300 is embedded in the side wall of the heating groove 110, and the resistance value of the circumferential heating resistor 300 gradually decreases from bottom to top.

[0034] The bottom heating resistor 200 of the heating element is coaxially arranged with the heating groove 110, and the resistance value of the bottom heating resistor 200 gradually decreases radially along the heating groove 110, forming an inward energy-concentrating heating mode. This prioritizes heating the central area of ​​the cigarette, allowing the center of the cigarette to heat up more quickly. The asymmetrical resistance gradient distribution design creates a concentric, layered structure of the bottom and circumferential resistance networks, which helps improve the toasting effect on the cigarette and increases smoke generation efficiency. The resistance value of the circumferential heating resistor 300 gradually decreases from bottom to top, achieving a decreasing heat conduction from bottom to top. This prevents overheating at the top, which could cause paper charring and protects the integrity of the cigarette. The combination of these two elements effectively improves the toasting effect on the cigarette, increases smoke volume, and enhances the user's smoking experience. The multi-area coordinated heating of the bottom heating resistor 200 and the circumferential heating resistor 300 rapidly increases the cigarette temperature, shortens preheating time, simplifies temperature control, and effectively improves the toasting effect on the cigarette.

[0035] Specifically, the pot body 100 is made of ceramic.

[0036] In one embodiment of this invention, the sidewall of the heating groove 110 is provided with a microporous ceramic layer 140; the bottom of the heating groove 110 is evenly distributed with a plurality of radiation blind holes 101.

[0037] The combination of the microporous ceramic layer 140 on the sidewall of the heating tank 110 and the radiating blind holes 101 at the bottom of the tank enhances functional thermal radiation. The microporous ceramic layer 140 can uniformly adsorb e-liquid through capillary action, avoiding localized dry burning and making the e-liquid atomization more uniform, thus ensuring a more balanced temperature. The evenly spaced radiating blind holes 101 at the bottom of the tank form a honeycomb-shaped radiating cavity, which improves infrared radiation efficiency through multiple reflections, accelerates the evaporation of moisture inside the tobacco, and makes the temperature more even.

[0038] In another embodiment of this invention, only the sidewall of the heating groove 110 is provided with a microporous ceramic layer 140; in yet another embodiment of this invention, only the bottom of the heating groove 110 is provided with a plurality of radiation blind holes 101 evenly distributed at intervals.

[0039] In this embodiment, the porosity of the microporous ceramic layer 140 is 30.0% to 60.0%, and the pore size of the micropores on the microporous ceramic layer 140 is 5.0 μm to 50.0 μm.

[0040] By limiting the porosity and micropore size range of the microporous ceramic layer 140, it is ensured that it has sufficient capillary action to uniformly adsorb e-liquid, while preventing the adsorption effect and structural stability from being affected by pores that are too large or too small, further optimizing and avoiding localized dry burning. The above parameter settings can maintain good thermal conductivity of the heating element, further improving the heating effect and the quality of cigarette baking, and ensuring uniform atomization of e-liquid.

[0041] For example, the inner diameter of the radiation blind hole 101 is 0.1 mm to 0.5 mm, and the depth of the radiation blind hole 101 is 0.3 mm to 1.2 mm.

[0042] The aforementioned size range clearly defines the inner diameter and depth range of the radiation blind hole 101, which allows the radiation blind hole 101 to better play its role in improving infrared radiation efficiency through multiple reflections, accurately control the thermal radiation effect, and thus accelerate the evaporation of moisture inside the tobacco.

[0043] In this embodiment, the heating groove 110 is a cylindrical groove, the bottom heating resistor 200 is cylindrical, and the circumferential heating resistor 300 is tubular.

[0044] The heating groove 110 is a cylindrical groove, the bottom heating resistor 200 is cylindrical, and the circumferential heating resistor 300 is tubular. This structural design is highly compatible with the shape of the cigarette and facilitates the mutual conduction of heat between the circumference and the bottom, thereby heating the cigarette evenly and improving the heating efficiency and baking effect of the cigarette.

[0045] In other embodiments of this example, the heating groove 110 is an elliptical cylindrical groove.

[0046] For example, the resistance of the center of the bottom heating resistor 200 is R1, the resistance of the edge of the bottom heating resistor 200 is R2, and 0.5Ω≤R2<R1≤0.8Ω; and the resistance of the bottom end of the circumferential heating resistor 300 is R3, the resistance of the top end of the circumferential heating resistor 300 is R4, and 0.4Ω≤R4<R3≤0.7Ω.

[0047] By limiting the resistance range of the bottom heating resistor 200 and the circumferential heating resistor 300 at different positions and satisfying a specific resistance value relationship, it helps to accurately control the heating temperature, ensure the stability and consistency of the heating effect, ensure sufficient heating power, and realize the functions of inward energy-concentrating heating and bottom-up decreasing heat conduction, so as to achieve stable and efficient heating, provide a suitable temperature environment for cigarette baking, optimize the cigarette baking effect, and improve the user's smoking experience.

[0048] In another embodiment of this example, only the resistance value of the bottom heating resistor 200 is limited; in yet another embodiment of this example, only the resistance value of the circumferential heating resistor 300 is limited.

[0049] For example, the pot body 100 includes a tubular shell 120 and a bottom shell 130. The tubular shell 120 extends in a vertical direction, and the bottom shell 130 closes the bottom opening of the tubular shell 120. The bottom shell 130 and the tubular shell 120 form a heating groove 110. Specifically, the pot body 100 is integrally formed by sintering.

[0050] The pot body 100, consisting of a tubular shell 120 and a bottom shell 130 forming a heating groove 110, has a simple structure and good sealing performance. This makes the installation of the bottom heating resistor 200 and the circumferential heating resistor 300 more stable and facilitates their embedding. At the same time, it forms a closed heating space, which makes the heat energy conduction between the circumference and the bottom more smoothly. This is conducive to the concentration of heat, effectively reduces heat loss, improves thermal efficiency, and ensures that more heat energy is used for heating the cigarette.

[0051] Further, the length of the pot body 100 is 10.0 mm to 20.0 mm, the inner diameter of the heating groove 110 is 5.0 mm to 12.0 mm, and the wall thickness of the tubular shell 120 is 0.2 mm to 1.2 mm. Further, the length of the pot body 100 is preferably 13.0 mm to 16.0 mm, the inner diameter of the heating groove 110 is preferably 7.0 mm to 9.0 mm, and the wall thickness of the tubular shell 120 is preferably 0.3 mm to 0.6 mm.

[0052] The dimensions of the pot body 100 (length), heating groove 110 (inner diameter), and tubular shell 120 (wall thickness) have been optimized to ensure the heating effect and structural strength of the heating element while adapting to different specifications of cigarettes. This also gives the heating groove 110 a reasonable heat capacity and heat conduction efficiency, which is conducive to rapid heating, shortens the preheating time, and improves the versatility and practicality of the heating element.

[0053] In this embodiment, the heating element further includes a first conductive lead wire 410, a second conductive lead wire 420, and a third conductive lead wire 430. The first conductive lead wire 410 is used to connect the input terminal of the bottom heating resistor 200 and the input terminal of the circumferential heating resistor 300. The second conductive lead wire 420 is used to connect the output terminal of the bottom heating resistor 200. The third conductive lead wire 430 is used to connect the output terminal of the circumferential heating resistor 300.

[0054] The input and output terminals of the bottom heating resistor 200 and the circumferential heating resistor 300 are respectively connected through the first conductor lead-out wire 410, the second conductor lead-out wire 420 and the third conductor lead-out wire 430, which simplifies the heating circuit design and allows the bottom heating resistor 200 and the circumferential heating resistor 300 to be easily connected to the control board, so as to realize the individual control and precise temperature control of the bottom heating resistor 200 and the circumferential heating resistor 300. The heating circuit design is simple.

[0055] Specifically, the first conductor lead-out wire 410, the second conductor lead-out wire 420 and the third conductor lead-out wire 430 all extend vertically from the bottom end of the pot body 100, thereby being electrically connected to the external control unit.

[0056] This embodiment also provides an atomizer, including a first control unit, a second control unit, and the aforementioned heating element. The first control unit is electrically connected to the bottom heating resistor 200 to control the bottom heating resistor 200 to generate heat. The second control unit is electrically connected to the circumferential heating resistor 300 to control the circumferential heating resistor 300 to generate heat. Specifically, the first control unit is connected to the first conductive lead wire 410 and the second conductive lead wire 420, and the second control unit is connected to the first conductive lead wire 410 and the third conductive lead wire 430.

[0057] The atomizer generates heat by controlling the bottom heating resistor 200 and the circumferential heating resistor 300 through the first control unit and the second control unit, respectively. The heating power and temperature of the bottom and circumferential heating can be adjusted independently according to actual needs. With the synergistic effect of bottom and circumferential heating, precise temperature control can be achieved, thereby further improving the baking effect on the cigarette, increasing thermal efficiency, shortening the preheating time, increasing the amount of smoke, and bringing consumers a good smoking experience.

[0058] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A heating element, characterized in that, include: The pot body (100) has an upward-opening heating groove (110). A bottom heating resistor (200) is embedded in the bottom of the heating groove (110), and the bottom heating resistor (200) is coaxially arranged with the heating groove (110). The resistance value of the bottom heating resistor (200) gradually decreases radially along the heating groove (110). A circumferential heating resistor (300) is embedded in the side wall of the heating groove (110), and the resistance value of the circumferential heating resistor (300) gradually decreases from bottom to top.

2. The heating element according to claim 1, characterized in that, The sidewall of the heating groove (110) is provided with a microporous ceramic layer (140); and / or, The bottom of the heating groove (110) is evenly distributed with several radiation blind holes (101).

3. The heating element according to claim 2, characterized in that, The porosity of the microporous ceramic layer (140) is 30.0% to 60.0%, and the pore size of the micropores on the microporous ceramic layer (140) is 5.0 μm to 50.0 μm.

4. The heating element according to claim 2, characterized in that, The inner diameter of the radial blind hole (101) is 0.1 mm to 0.5 mm, and the depth of the radial blind hole (101) is 0.3 mm to 1.2 mm.

5. The heating element according to claim 1, characterized in that, The heating groove (110) is a cylindrical groove, the bottom heating resistor (200) is cylindrical, and the circumferential heating resistor (300) is tubular.

6. The heating element according to claim 1, characterized in that, The resistance at the center of the bottom heating resistor (200) is R1, and the resistance at the edge of the bottom heating resistor (200) is R2, where 0.5Ω ≤ R2 < R1 ≤ 1.2Ω; and / or, The resistance at the bottom of the circumferential heating resistor (300) is R3, and the resistance at the top of the circumferential heating resistor (300) is R4, where 0.5Ω≤R4<R3≤1.2Ω.

7. The heating element according to claim 1, characterized in that, The pot body (100) includes a tubular shell (120) and a bottom shell (130). The tubular shell (120) extends in a vertical direction, and the bottom shell (130) closes the bottom opening of the tubular shell (120). The bottom shell (130) and the tubular shell (120) together form the heating groove (110).

8. The heating element according to claim 7, characterized in that, The pot body (100) has a length of 10.0 mm to 20.0 mm, the heating groove (110) has an inner diameter of 5.0 mm to 12.0 mm, and the tubular shell (120) has a wall thickness of 0.2 mm to 1.2 mm.

9. The heating element according to any one of claims 1-8, characterized in that, The heating element further includes a first conductive lead wire (410), a second conductive lead wire (420), and a third conductive lead wire (430). The first conductive lead wire (410) is used to connect the input terminal of the bottom heating resistor (200) and the input terminal of the circumferential heating resistor (300). The second conductive lead wire (420) is used to connect the output terminal of the bottom heating resistor (200). The third conductive lead wire (430) is used to connect the output terminal of the circumferential heating resistor (300).

10. An atomizer, characterized in that, The device includes a first control unit, a second control unit, and a heating element as described in any one of claims 1-9. The first control unit is electrically connected to the bottom heating resistor (200) and is used to control the bottom heating resistor (200) to generate heat. The second control unit is electrically connected to the circumferential heating resistor (300) and is used to control the circumferential heating resistor (300) to generate heat.

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