Atomizing core, preparation method thereof, and atomizing device

Abstract

The present application discloses an atomization core, a preparation method thereof, and an atomization device, belonging to the technical field of atomization equipment. The atomization core includes a base, an upper cover, a first heating element, and a second heating element. The upper cover is disposed on the base, and the upper cover and the base enclose to form an inner-core oil storage space. The first heating element is disposed in the inner-core oil storage space for heating the matrix in the inner-core oil storage space. The second heating element is disposed on the upper cover and is located outside the inner-core oil storage space. The second heating element can heat the matrix heated by the first heating element to generate an aerosol. The power of the first heating element is less than the power of the second heating element. For the atomization core provided by the present application, the first heating element with relatively small power is used to preheat the matrix to enhance the fluidity of the matrix. The first heating element is disposed in the inner-core oil storage space, improving the supply efficiency of the matrix, thereby improving the atomization efficiency of the atomization core.

Description

Technical Field

[0001] The present invention relates to the technical field of atomization equipment, and in particular to an atomization core and a preparation method thereof, and an atomization device. Background Art

[0002] Ceramic atomizer cores are widely used in atomizer devices. They typically use a screen-printing process to create heating electrodes on a porous ceramic surface. During operation, the heat generated by the heating electrodes atomizes the substrate. However, the precision of the printing process limits the uniformity of the core heating. Heat is concentrated primarily in the core heating area of the electrode, which experiences a significant temperature difference from the surrounding area. The heated substrate has a high kinematic viscosity at room temperature and poor fluidity, resulting in insufficient substrate adsorption around the electrode. This can lead to electrode failures such as dry burning, melting, and localized carbon deposits clogging the atomizer orifices. Reducing the atomization power also results in insufficient atomization, impacting flavor. Some atomizer cores incorporate independent substrate preheating electrodes to improve substrate fluidity, but this increases the core's power consumption, resulting in low atomization efficiency. Therefore, improving substrate fluidity and increasing atomization efficiency in atomizer cores has become a pressing technical challenge. Summary of the Invention

[0003] The present application provides an atomizer core, which can solve the problems of poor matrix fluidity and low atomization efficiency of the atomizer core.

[0004] In order to solve the above technical problems, the present application provides an atomizer core, comprising a base, an upper cover, a first heating element and a second heating element. The upper cover is arranged on the base, and the upper cover and the base form an oil storage space in the core. The first heating element is arranged in the oil storage space in the core to heat the substrate in the oil storage space in the core; the second heating element is arranged on the upper cover and is located outside the oil storage space in the core. The second heating element can heat the substrate heated by the first heating element and generate an aerosol; the power of the first heating element is less than the power of the second heating element.

[0005] The present application also provides a method for preparing the above-mentioned atomizer core, which comprises:

[0006] Processing and manufacturing the base and upper cover;

[0007] A first heating element is installed on the base, and a second heating element is processed on the upper cover;

[0008] Put the upper cover on the base to form a semi-finished atomizer core, and then put it into the clamping fixture to clamp it;

[0009] The semi-finished atomizer core is placed into a reduction furnace along with a clamping fixture to be sintered and solidified to obtain the atomizer core.

[0010] The present application provides an atomization device, which includes a housing, a power source, and the atomization core as described above; the atomization core and the power source are accommodated in the housing, and the power source supplies power to the atomization core.

[0011] The atomization core provided by the present application is provided with a first heating element and a second heating element, wherein the power of the first heating element is less than that of the second heating element. The first heating element with relatively lower power is used to preheat the matrix to enhance the fluidity of the matrix; the first heating element is arranged in the oil storage space inside the core, so that the preheated matrix can be quickly adsorbed to the second heating element for atomization, improving the supply efficiency of the matrix, and thus improving the atomization efficiency of the atomization core. Description of the Drawings

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0013] Figure 1 It is a schematic structural diagram of an embodiment of the atomization core provided by the present application;

[0014] Figure 2 It is an exploded structural diagram of an embodiment of the atomization core provided by the present application;

[0015] Figure 3 It is a schematic cross-sectional view of an embodiment of the atomization core provided by the present application along a perspective;

[0016] Figure 4 It is a flowchart of an embodiment of the preparation method of the atomization core provided by the present application;

[0017] Figure 5 It is a schematic structural diagram of an embodiment of the clamping fixture provided by the present application;

[0018] Figure 6 It is a schematic structural diagram of an embodiment of the atomization core device provided by the present application. Detailed Description of the Embodiments

[0019] The following will further describe the present invention in detail in conjunction with the drawings and embodiments. It should be particularly noted that the following embodiments are only used to illustrate the present invention, but do not limit the scope of the present invention. Similarly, the following embodiments are only partial embodiments of the present invention rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0020] In the description of the present invention, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically defined. The terms "first", "second", and "third" in the embodiments of the present application are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", and "third" may explicitly or implicitly include at least one of such features. All directional indications (such as up, down, left, right, front, back...) in the embodiments of the present application are only used to explain the relative positional relationship, movement, etc. between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly. The terms "comprise" and "have" and any variations thereof in the embodiments of the present application are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but optionally further includes steps or units not listed, or optionally further includes other steps or components inherent to these processes, methods, products, or devices.

[0021] Reference to "embodiment" herein means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present invention. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0022] The present application provides an atomization core. Please also refer to Figures 1 to 3 , the atomization core 100 may include a base 10, an upper cover 20, a first heating element 30, and a second heating element 40. The upper cover 20 is a porous liquid-conducting material with good liquid conductivity, such as porous ceramic, to enhance the fluidity of the matrix. The base 10 can be a porous ceramic material with good liquid conductivity or a non-porous non-liquid-conducting material with good airtightness. The material of the base 10 can be determined according to the requirement for internal negative pressure during the operation of the atomization core 100. Specifically, when a high internal negative pressure is required for the atomization core 100, a non-porous non-liquid-conducting material can be selected to enhance the suction pressure, and when there is no requirement for the internal negative pressure of the atomization core 100, a porous material can be selected to enhance the overall adsorption and fluidity of the matrix.

[0023] The upper cover 20 is covered on the base 10. The upper cover 20 and the base 10 enclose an internal core oil storage space 11. The first heating element 30 is disposed in the internal core oil storage space 11 for heating the matrix in the internal core oil storage space 11. The first heating element 30 heats the matrix in the internal core oil storage space 11, which can improve the fluidity of the matrix. The second heating element 40 is disposed on the upper cover 20. The second heating element 40 can heat the matrix heated by the first heating element 30 and generate an aerosol. Wherein, the power of the first heating element 30 is less than the power of the second heating element 40.

[0024] The atomization core 100 provided in the present application is provided with a first heating element 30 and a second heating element 40. The power of the first heating element 30 is less than the power of the second heating element 40, forming a heating gradient. The first heating element 30 with relatively low power is used to preheat the matrix. On the one hand, it can enhance the fluidity of the matrix and improve the supply rate of the matrix. On the other hand, it can reduce the power consumption of the atomization core 100. The first heating element 30 is disposed in the internal core oil storage space 11, reducing the flow distance between the matrix and the second heating element 40, increasing the fluidity of the matrix, so that the preheated matrix can be quickly adsorbed to the second heating element 40 for atomization, improving the supply efficiency of the matrix, thereby improving the atomization efficiency of the atomization core 100. Moreover, the atomization core 100 is equivalent to opening an internal core oil storage space 11 inside the base 10 and the upper cover 20. This structure can still ensure that the overall thickness of the atomization core 100 module is relatively thin under the premise of realizing segmented heating, which is close to the thickness of the existing single-layer structure atomization core. Therefore, it will not affect the installation of the atomization core 100 module. In addition, combined with the above design of shortening the distance of the matrix flowing to the second heating element 40, the suction taste is improved on the premise of unchanged size.

[0025] Specifically, in an embodiment, the base 10 is provided with a lower internal core oil storage space 12, and the upper cover 20 is correspondingly provided with an upper internal core oil storage space 21. When the upper cover 20 is covered on the base 10, the upper internal core oil storage space 21 communicates with the lower internal core oil storage space 12 to form the internal core oil storage space 11. Opening the upper internal core oil storage space 21 on the upper cover 20 thins the local thickness of the upper cover 20 and shortens the distance of the matrix in the internal core oil storage space 11 flowing to the second heating element 40. As Figure 3 shown by the arrow direction, the flow resistance of the matrix is reduced. The matrix preheated by the first heating element 30 can quickly flow to the second heating element 40 through the side wall of the internal core oil storage space 11 for atomization, thereby improving the atomization efficiency of the atomization core 100.

[0026] One end of the base 10 away from the upper cover 20 is provided with at least one oil inlet hole 13, and the oil inlet hole 13 is communicated with the oil storage space 11 inside the core, so that the matrix can enter the oil storage space 11 inside the core through the oil inlet hole 13. The rate of the matrix entering the oil storage space 11 inside the core can be adjusted by adjusting the number and aperture of the oil inlet holes 13.

[0027] Since the matrix can enter the oil storage space 11 inside the core through the oil inlet hole 13, the base 10 can be made of a liquid-conducting material or a non-liquid-conducting material. In one embodiment, the material of the base 10 is a non-liquid-conducting material. On the one hand, using a non-porous non-liquid-conducting material is beneficial to cost savings; on the other hand, a non-porous non-liquid-conducting material facilitates the processing of the oil inlet hole 13; in addition, a non-porous non-liquid-conducting material can also increase the negative pressure inside the atomizing core 100, thereby enhancing the suction pressure.

[0028] To enhance the tightness of the base 10 and the upper cover 20 when they are closed and increase the internal negative pressure when the atomizing core 100 is working, in one embodiment, the base 10 and the upper cover 20 are respectively provided with a sealing groove 14 and a sealing protrusion 22 at the closing position. When the upper cover 20 is covered on the base 10, the sealing protrusion 22 can be embedded in the sealing groove 14 to seal the oil storage space 11 inside the core. Of course, it can also be that a protrusion is provided on the upper cover 20 and a groove is correspondingly provided on the base 10, as long as the two cooperate to form a seal for the oil storage space 11 inside the core to enhance the tightness.

[0029] The first heating element 30 is used to preheat the matrix, and its heating temperature is 50 - 100 °C; the second heating element 40 is used to atomize the matrix, and its heating temperature is 200 - 300 °C. The first heating element 30 and the second heating element 40 form a heating gradient, which can reduce the heating power and heating temperature of a single heating element, thereby increasing the service life of the heating element.

[0030] To make the power and heating gradient match when the two are connected in parallel in the circuit, the ratio of the resistance value of the first heating element 30 to the resistance value of the second heating element 40 can be 2 - 10. Specifically, in some embodiments, the ratio of the resistance value of the first heating element 30 to the resistance value of the second heating element 40 can be 2, 3, 4, 5, 6, 7, 8, 9, 10, etc., which are not specifically limited herein. When the ratio of the resistance value of the first heating element 30 to the resistance value of the second heating element 40 is within the above range, the first heating element 30 and the second heating element 40 can form a good heating gradient, which is beneficial to the matching of preheating and atomization, and can improve the atomization efficiency of the atomizing core 100.

[0031] The first heating element 30 may include a first heating portion 31 and a first electrode 32. The first electrode 32 is connected to opposite ends of the first heating portion 31. Outlet grooves 15 corresponding to the first electrode 32 are provided on opposite sides of the lower core inner oil storage space 12. The first electrode 32 may be partially embedded in the outlet grooves 15 to suspend the first heating portion 31 in the core inner oil storage space 11. The first heating portion 31 is disposed in the middle of the core inner oil storage space 11, which is beneficial to uniformly heating the matrix.

[0032] Specifically, the first heating portion 31 may be in a sheet shape, and the area of the first heating portion 31 is substantially equal to the cross-sectional area of the core inner oil storage space 11, so that the first heating portion 31 can uniformly heat the matrix in the core inner oil storage space 11. At least one oil passing hole 311 is formed in the first heating portion 31, and the oil passing hole 311 is used to adjust the passing rate of the matrix. Specifically, the passing rate of the matrix can be adjusted by adjusting the number of the oil passing holes 311 provided or the opening area.

[0033] A plurality of oil passing holes 311 may be arranged in an array on the first heating portion. The oil passing holes 311 are more uniformly distributed, avoiding the concentration of oil supply in a local area, increasing the area for the matrix to flow to the second heating element 40, enabling each area of the second heating element 40 to quickly receive the matrix, and improving the atomization efficiency.

[0034] The second heating element 40 may include a second heating portion 41 and a second electrode 42. The second electrode 42 is connected to opposite ends of the second heating portion 41, and the second electrode 42 is disposed corresponding to the first electrode 32. The second heating element 40 may be a heating wire processed by a printing process, and the heating wire printed on the upper cover 20 has a high heating efficiency.

[0035] In order to reduce the interface between the electrode and the power supply and enhance the assemblability of the atomization core, in an embodiment, opposite ends of the first electrode 32 are electrically connected to opposite ends of the second electrode 42 respectively, and after being connected, they are connected to the power supply, which can reduce the external interface of the electrode. The connection method may be one of welding, sintering or riveting. Specifically, the first electrode 32 may be bent along the outer wall of the upper cover 20 towards the side where the second electrode 42 is located and then connected to the second electrode 42.

[0036] The present application provides a preparation method of an atomization core for preparing the atomization core 100 as described above. Please refer to Figure 4 , Figure 4 is a flowchart of an embodiment of the preparation method of the atomization core provided by the present application. The preparation method 200 of the atomization core includes steps S210 to S240:

[0037] S210, machining and manufacturing the base 10 and the upper cover 20.

[0038] The upper cover 20 can be made by pressing and sintering porous ceramic powder raw materials, and the base 10 can be made by pressing and sintering porous ceramic powder or ordinary ceramic powder raw materials. The raw materials of the base 10 can be determined according to the negative pressure requirements inside the atomization core 100 during use.

[0039] S220, install the first heating element 30 on the base 10, and process the second heating element 40 on the upper cover 20;

[0040] S230, cover the upper cover 20 on the base 10 to form a semi-finished atomization core 110, and place it in the clamping fixture 150 for clamping, as Figure 5 shown.

[0041] Specifically, a high-temperature adhesive, such as glass paste, can be coated or dispensed at the joint between the upper cover 20 and the base 10. After coating or dispensing, it is heated to 120 - 160 °C and cured for more than 15 minutes.

[0042] To prevent the semi-finished product 110 from shifting during the firing process and enhance the airtightness of the atomization core 100 after firing and forming, the semi-finished atomization core 110 needs to be placed in the clamping fixture 150 for clamping. The clamping fixture 150 includes a corresponding fixture base 151 and a fixture upper cover 152. The fixture upper cover 152 can be covered on the fixture base 151. The fixture upper cover 152 and the fixture base 151 can be connected by bolts. After the semi-finished atomization core 110 is placed in the clamping fixture 150, the semi-finished atomization core 110 can be clamped by adjusting the bolts.

[0043] Please continue to refer to Figure 5 , a limiting groove 1511 is provided on the fixture base 151. The limiting groove 1511 can accommodate multiple semi-finished atomization cores 110. The side walls of the multiple semi-finished atomization cores 110 are placed in contact with each other in the limiting groove 1511. The size of the limiting groove 1511 matches the size of the semi-finished atomization core 110, which can prevent the multiple semi-finished atomization cores 110 from shifting after being placed. Multiple pressing columns 1521 are provided at intervals on the fixture upper cover 152. When the fixture upper cover 152 is pressed on the fixture base 151, the pressing columns 1521 located in the limiting groove 1511 are in contact with the second heating elements 40 of two adjacent placed semi-finished atomization cores 110, so that the electrodes of the first heating element 30 can be in contact with the electrodes of the second heating element 40. The pressing columns 1521 located outside the limiting groove 1511 are in contact with the second heating element 40 of the semi-finished atomization core 110 and the side wall of the limiting groove 1511, preventing the semi-finished atomization cores 110 located on the outer periphery from shifting during the firing process.

[0044] S240, place the semi-finished atomization core 110 into a reduction furnace together with the clamping fixture 150 for sintering and solidifying to form the atomization core 100. During the firing process, the bonding material between the upper cover 20 and the base 10 melts and solidifies, and at the same time, the second heating element 40 is solidified on the upper cover 20, and the electrodes of the first heating element 30 and the electrodes of the second heating element 40 are melted and bonded and solidified.

[0045] This application provides an atomization device. Please refer to Figure 6 , Figure 6 which is a schematic structural diagram of an embodiment of the atomization device provided by this application. The atomization device 300 may include a housing 310, a power supply 320, and the atomization core 100 as described above. Among them, the atomization core 100 and the power supply 320 are accommodated in the housing 310, and the power supply 320 supplies power to the atomization core 100. Since the atomization device 300 is provided with the atomization core 100, the atomization core 100 can achieve hierarchical heating of the matrix, improving the atomization efficiency.

[0046] The atomization core and its preparation method provided by this application have at least the following beneficial effects:

[0047] 1. The atomization core 100 is provided with a first heating element 30 and a second heating element 40. The power of the first heating element 30 is less than the power of the second heating element 40, forming a heating gradient, which can enhance the fluidity of the matrix, reduce the power consumption of the atomization core 100, improve the supply efficiency of the matrix, and thus improve the atomization efficiency of the atomization core 100.

[0048] 2. The material of the base 10 is a non-liquid-conducting material, which can not only save costs, but also facilitate the processing of the oil inlet hole 13, and can also enhance the suction pressure.

[0049] 3. The base 10 and the upper cover 20 are respectively provided with a sealing groove 14 and a sealing protrusion 22 at the closing position. The sealing protrusion 22 can be embedded in the sealing groove 14, enhancing the tightness of the closing of the base 10 and the upper cover 20.

[0050] 4. The first heating element 30 and the second heating element 40 form a heating gradient, which can reduce the heating power and heating temperature of a single heating element, thereby improving the service life of the heating element.

[0051] 5. The ratio of the resistance value of the first heating element 30 to the resistance value of the second heating element 40 is 2 to 10. The first heating element 30 and the second heating element 40 can form a good heating gradient, which is beneficial to the matching of preheating and atomization, and improves the atomization efficiency of the atomization core 100.

[0052] 6. The opposite ends of the first electrode 32 are respectively electrically connected to the opposite ends of the second electrode 42, which can reduce the external interfaces of the electrodes and enhance the assemblability of the atomization core.

[0053] 7. Preparation method 200 of the atomization core. By using the clamping fixture 150 to clamp the semi-finished atomization core 110, it can prevent the semi-finished atomization core 110 from shifting during the firing process and enhance the airtightness of the atomization core 100 after firing and forming.

[0054] The above are only partial embodiments of the present invention, and thus do not limit the protection scope of the present invention. Any equivalent device or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be similarly included in the patent protection scope of the present invention.

Claims

1. An atomizing core, characterized in that, Comprising: A base, an upper cover, a first heating element, and a second heating element. A lower core internal oil storage space is provided on the base, and a corresponding upper core internal oil storage space is provided on the upper cover. The upper cover is covered on the base, and the upper core internal oil storage space and the lower core internal oil storage space communicate to form a core internal oil storage space. At least one oil inlet hole is opened at one end of the base away from the upper cover, and the oil inlet hole communicates with the core internal oil storage space so that the matrix can enter the core internal oil storage space through the oil inlet hole; The first heating element is arranged in the core internal oil storage space for heating the matrix in the core internal oil storage space; The second heating element is arranged on the upper cover and is located outside the core internal oil storage space. The second heating element can heat the matrix heated by the first heating element and generate an aerosol; The power of the first heating element is less than the power of the second heating element.

2. The atomizing core according to claim 1, wherein, The base is made of a non-liquid-conducting material, and the upper cover is made of a porous liquid-conducting material.

3. The atomizing core according to claim 1, wherein Sealing grooves and sealing protrusions are respectively provided at the joint of the base and the upper cover. When the upper cover is covered on the base, the sealing protrusion can be embedded into the sealing groove to seal the core internal oil storage space.

4. The atomization core according to claim 1, characterized in that, The heating temperature of the first heating element is 50 - 100 °C, and the heating temperature of the second heating element is 200 - 300 °C.

5. The atomization core according to claim 1, characterized in that, The ratio of the resistance value of the first heating element to the resistance value of the second heating element is 2 - 10.

6. The atomization core according to claim 1, characterized in that, The first heating element includes a first heating part and a first electrode, and the first electrode is connected to opposite ends of the first heating part; Outlet grooves are provided on opposite sides of the lower core internal oil storage space, and the first electrode is partially embedded in the outlet grooves to suspend the first heating part in the core internal oil storage space.

7. The atomization core according to claim 6, wherein, The first heating part is in a sheet shape, and at least one oil passing hole is opened on the first heating part.

8. The atomization core according to claim 7, wherein, A plurality of the oil passing holes are arranged in an array on the first heating part.

9. The atomization core according to claim 6, wherein, The second heating element includes a second heating part and a second electrode, and the second electrode is connected to opposite ends of the second heating part. The second electrode is arranged corresponding to the first electrode.

10. The atomization core according to claim 9, wherein, Opposite ends of the first electrode are respectively electrically connected to opposite ends of the second electrode.

11. A method for preparing an atomization core, which is used to prepare the atomization core according to any one of claims 1-10, characterized in that, Comprising: Processing and manufacturing the base and the upper cover; Installing the first heating element on the base and processing the second heating element on the upper cover; Covering the upper cover on the base to form a semi-finished atomizing core and placing it in a clamping jig for clamping; Putting the semi-finished atomizing core together with the clamping jig into a reduction furnace for sintering and solidifying to form an atomizing core.

12. The preparation method according to claim 11, characterized in that, The raw material for making the base is porous ceramic powder or ordinary ceramic powder, and the raw material for making the upper cover is porous ceramic powder.

13. The preparation method according to claim 11, wherein, The clamping jig includes a corresponding jig base and a jig upper cover, and the jig upper cover can be covered on the jig base; A limiting groove is opened on the jig base, and the side walls of a plurality of the semi-finished atomizing cores are abutted against each other and placed in the limiting groove; A plurality of pressing columns are arranged at intervals on the upper cover of the jig. When the upper cover of the jig is pressed tightly on the jig base, the pressing columns located in the limiting groove are in contact with the second heating elements of two adjacent placed semi-finished atomization cores, and the pressing columns located on the outer periphery of the limiting groove are in contact with the second heating elements of the semi-finished atomization core and the side wall of the limiting groove, so as to press the semi-finished atomization core tightly in the limiting groove.

14. An atomizing device, characterized in that, Comprising: A housing, a power source, and an atomization core according to any one of claims 1-10; The atomization core and the power source are accommodated in the housing, and the power source supplies power to the atomization core.

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