Heating assembly, aerosol generator, and aerosol generating device

Abstract

The application relates to the aerosol technical field and provides a heating assembly, an aerosol generator and an aerosol generating device. The heating assembly comprises a heating core and a base assembly. The heating core comprises a base body and a heating element arranged on the outer wall of the base body. The heating element comprises a heating body and first electrode monomers arranged on the opposite ends of the heating body. The base assembly comprises a base body and second electrode monomers arranged on the base body. The base body is provided with a mounting groove for embedding the base body. The second electrode monomers comprise an external connecting part arranged on the outer wall of the base body and an internal connecting part arranged on the external connecting part and extending into the mounting groove. The internal connecting part is in electrical contact with the first electrode monomers. The battery assembly of the aerosol generating device only needs to be electrically connected with the external connecting part on the outer wall of the base body, so that the heating body of the heating core can be powered. The base body can protect and support the heating core, preventing the heating core from being deformed or damaged due to stress during installation or transportation.

Description

Technical Field

[0001] This application relates to the field of aerosol technology, and in particular provides a heating element, an aerosol generator, and an aerosol generating device. Background Technology

[0002] The aerosol generating device is mainly used to heat the aerosol matrix stored within it to generate aerosols for users to inhale. The aerosol generating device includes a power module and a heating element. The power module and the heating element are electrically connected, and the heating element heats the aerosol matrix.

[0003] In existing technologies, the methods for electrically connecting the heating element and the power module have several inherent drawbacks, hindering product performance improvement and large-scale production. One common solution involves soldering the power module to the pins of the heating element via leads. This requires adding a pin-setting and lead-soldering process to the heating element, increasing cost and assembly complexity. Furthermore, the high temperatures generated during soldering can easily conduct heat through the leads to the heating element's interior, causing thermal damage. Another common solution involves using elastic pins on the power module to directly contact the electrodes at the bottom of the heating element. This avoids soldering leads to the heating element, but presents significant mechanical reliability issues. The pins directly press against the heating element; excessive pressure can damage the heating element, while insufficient pressure may lead to poor contact and malfunction.

[0004] The aforementioned electrical connection methods between the heating element and the power module all lack effective structural protection for the heating element itself, resulting in weak structural reliability. Utility Model Content

[0005] The purpose of this application is to provide a heating element, an aerosol generator, and an aerosol generating device, aiming to solve the technical problem that in existing aerosol generating devices, the electrical connection between the heating element and the power module lacks effective structural protection for the heating element, resulting in weak structural reliability.

[0006] To achieve the above objectives, the technical solution adopted in this application is as follows: In a first aspect, embodiments of this application provide a heating assembly, including a heating core and a base assembly; the heating core includes a substrate and a heating element disposed on the outer wall of the substrate, the heating element including a heating body and first electrode units respectively disposed at opposite ends of the heating body; the base assembly includes a base body and a second electrode unit disposed on the base body, the base body having a mounting groove for the substrate to be embedded; the second electrode unit includes an outer portion disposed on the outer wall of the base body and an inner portion disposed on the outer portion and extending into the mounting groove, the inner portion being in electrical contact with the first electrode unit.

[0007] In some embodiments, the substrate has a top surface, a bottom surface, and an outer peripheral side surface disposed opposite to each other; the bottom surface faces the mounting groove, and the heating element is disposed on the top surface; the first electrode unit includes a main body portion disposed on the top surface and connected to the heating element, and an extension portion connected to the main body portion and at least covering the outer peripheral side surface; the inner portion is in electrical contact with the extension portion.

[0008] In some embodiments, the outer peripheral side has two opposing first side surfaces and two opposing second side surfaces, the two second side surfaces being located on both sides of the heating element in the length extension direction; the main body portion has extension portions on opposite sides perpendicular to the length extension direction of the heating element, and the extension portion on one side sequentially covers the first side surface and the bottom surface.

[0009] In some embodiments, the mounting groove has a first inner sidewall corresponding to the first sidewall, and the inner connection portion is attached to the first inner sidewall.

[0010] In some embodiments, the inner portion is formed with an abutting protrusion that protrudes toward the substrate; In some embodiments, the base body includes a base top wall, a base bottom wall, and a base outer side wall; the base top wall is provided with the mounting groove, the external connection portion is provided on the base bottom wall, and the second electrode unit further includes a positioning portion extending from the external connection portion and sequentially covering the base outer side wall and the base top wall.

[0011] In some embodiments, the base body has a connection channel on the bottom wall of the base that communicates with the mounting groove, and two external portions of the second electrode units are symmetrically arranged on both sides of the connection channel.

[0012] In some embodiments, the substrate is a rectangular or cylindrical structure, and the shape of the mounting groove matches the substrate.

[0013] In some embodiments, the substrate and the heating element are an integrated structure; and / or, the base body and the second electrode unit are an integrated structure.

[0014] Secondly, embodiments of this application also provide an aerosol generator, including a liquid storage tank and the aforementioned heating component disposed in the liquid storage tank.

[0015] Secondly, embodiments of this application provide an aerosol generating device, including a power module and the aforementioned aerosol generator; the power module is electrically connected to the external portion of the heating component to supply power to the heating element.

[0016] The beneficial effects of this application are as follows: by setting a base assembly, the heating core is embedded in the mounting groove of the base body, which makes assembly quick and convenient; and the second electrode unit is electrically contacted with the first electrode unit through the inner part, so that the external battery assembly only needs to be electrically connected to the outer part on the outer wall of the base body to supply power to the heating element of the heating core.

[0017] The base body protects and supports the heating element, preventing deformation or damage during installation or transportation. Furthermore, the external connector on the base body directly connects to the external battery assembly. When the external battery is connected via pins, the pins press directly against the external connector, transferring pressure and impact to the base body instead of directly applying force to the heating element. This increases the compressive force between the pins and the base body, ensuring effective contact. When the external battery is connected via wire bonding, the leads are directly soldered to the external connector, allowing for pre-installed solder joints on the connector, eliminating the need for solder joints on the heating element itself. This reduces manufacturing steps and prevents processing damage. Ultimately, the base assembly effectively protects the heating element and improves the reliability of the electrical connection. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A three-dimensional structural diagram of the top of a heating component provided in an embodiment of this application; Figure 2 This is a three-dimensional structural diagram of the bottom of a heating component provided in an embodiment of this application; Figure 3 A three-dimensional structural diagram showing the heating core and base assembly of a heating component provided in an embodiment of this application, separated from each other. Figure 4 This is a three-dimensional structural diagram of the heating core of a heating component provided in an embodiment of this application.

[0020] The following are the labeling elements in the figure: 100. Heating components; 1. Heating element; 2. Base assembly; 3. Substrate; 310, top surface; 320, bottom surface; 330. Outer peripheral side; 331. First side; 332. Second side; 4. Heating element; 410. Heating body; 420. First electrode unit; 421. Main body; 422. Extension; 5. Base body; 510. Mounting slot; 511. First inner sidewall; 520. Top wall of the base; 530. Bottom wall of the base; 540. Outer wall of the base; 6. Second electrode unit; 610. External part; 620. Internal part; 630. Fixing part; 7. Abutting protrusion; 8. Groove; 9. Connecting channel. Detailed Implementation

[0021] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0023] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0024] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0025] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0026] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0027] In the description of the embodiments of this application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this application and 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 the embodiments of this application.

[0028] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0029] This application provides an aerosol generating device (not shown), including a power module and an aerosol generator, wherein the power module is electrically connected to the aerosol generator.

[0030] Specifically, the aerosol generator includes a liquid storage tank and a heating element 100 disposed in the liquid storage tank.

[0031] Understandably, the liquid storage tank of the aerosol generator stores the aerosol matrix, and the power module includes a battery assembly. The battery assembly is electrically connected to the heating assembly 100. After being powered on, the heating assembly 100 is used to heat the aerosol matrix to generate an aerosol that can be inhaled by the user.

[0032] refer to Figures 1 to 3In some embodiments, the heating assembly 100 includes a heating core 1 and a base assembly 2. The heating core 1 includes a base 3 and a heating element 4 disposed on the outer wall of the base 3. The heating element 4 includes a heating body 410 and first electrode units 420 respectively disposed at opposite ends of the heating body 410. The base assembly 2 includes a base body 5 and a second electrode unit 6 disposed on the base body 5. The base body 5 is provided with a mounting groove 510 for the base 3 to be embedded. The second electrode unit 6 includes an outer portion 610 disposed on the outer wall of the base body 5 and an inner portion 620 disposed on the outer portion 610 and extending into the mounting groove 510. The inner portion 620 is in electrical contact with the first electrode unit 420.

[0033] Understandably, the substrate 3 is used to guide the aerosol matrix to the heating element 4. The first electrode unit 420 at both ends of the heating element 4 is energized to make the heating body 410 heat up, and the heating body 410 heats the aerosol matrix in contact with it.

[0034] Specifically, the heating element 1 is embedded in the mounting groove 510 of the base body 5, and the base body 5 provides positioning and support for the heating element 1. A second electrode unit 6 is provided on the base body 5, and the outer part 610 of the second electrode unit 6 is located on the outer wall of the base body 5 to facilitate electrical connection with an external battery assembly. The inner part 620 of the second electrode unit 6 extends from the outer part 610 and penetrates into the mounting groove 510, and makes electrical contact with the first electrode unit 420. Subsequently, the external battery assembly can supply power to the heating element 410 by electrically connecting with the outer part 610, thereby heating it.

[0035] The heating element 100 of this application is assembled quickly and conveniently by setting a base assembly 2, in which the heating core 1 is embedded in the mounting groove 510 of the base body 5; and the second electrode unit 6 is electrically contacted with the first electrode unit 420 through the inner part 610, so that the external battery assembly only needs to be electrically connected to the outer part 620 on the outer wall of the base body 5 to supply power to the heating element 410 of the heating core 1. The base body 5 provides protection and support for the heating element 1, preventing deformation or damage during installation or transportation. Furthermore, the external connector 610 on the base body 5 connects directly to the external battery assembly. When the external battery is connected via a pin, the pin rests directly on the external connector 610, and the pressure and impact applied by the pin are transferred to the base body 5, avoiding direct force on the heating element 1. When the external battery is connected via wire bonding, the wires are directly soldered to the external connector 610, allowing for pre-installed solder joints on the external connector 610, eliminating the need for additional solder joints on the heating element 1, reducing manufacturing steps and costs. Consequently, the base assembly 2 effectively protects the heating element 1 and improves the reliability of the electrical connection.

[0036] In some embodiments, the base 3 is a rectangular or cylindrical structure, and the shape of the mounting groove 510 matches that of the base 3.

[0037] Understandably, the base 3 in this embodiment can be any structure such as a cuboid, cube, cylinder, or polygonal prism. The base body 5 is provided with a mounting groove 510 that matches the shape of the base 3, so that the base 3 can be quickly aligned and embedded in the mounting groove 510, making assembly convenient and quick. The outer wall of the base 3 will fit tightly against the inner wall of the mounting groove 510, enhancing connection stability and preventing loosening. The inner part 620 can make close contact with the first electrode unit 420 on the base 3, ensuring electrical connection stability.

[0038] refer to Figures 1 to 3 In some embodiments, the substrate 3 has a top surface 310, a bottom surface 320, and an outer peripheral side surface 330 disposed opposite to each other; the bottom surface 320 faces the mounting groove 510, and the heating element 410 is disposed on the top surface 310; the first electrode unit 420 includes a main body portion 421 disposed on the top surface 310 and connected to the heating element 410, and an extension portion 422 connected to the main body portion 421 and at least covering the outer peripheral side surface 330; the inner part 620 is in electrical contact with the extension portion 422.

[0039] Understandably, the heating element 410 is disposed on the top surface 310 of the substrate 3 to form a heating surface. The substrate 3 has a rectangular structure, which can uniformly absorb and transport the aerosol matrix to the heating surface from all directions. The mounting groove 510 is correspondingly configured as a rectangular groove, and the substrate 3 can be stably embedded in the mounting groove 510.

[0040] A portion of the first electrode unit 420 is a main body 421 disposed on the top surface 310 for connection with the heating element 410, and another portion is an extension 422 extending from the main body 421 to the outer peripheral side 330. The extension 422 contacts and engages with the inner part 620, which is disposed on the groove wall of the mounting groove 510 corresponding to the extension 422. Then, the base 3 is embedded in the mounting groove 510, thereby achieving electrical contact between the extension 422 and the inner part 620 and realizing the rapid installation of the heating core 1.

[0041] For example, the extension 422 may only cover the outer peripheral side 330, and the inner connection 620 may be correspondingly provided on the inner side wall of the mounting groove 510; or, the extension 422 may extend sequentially and cover the outer peripheral side 330 and the bottom surface 320; the inner connection 620 may be provided on the inner side wall of the mounting groove 510, or the inner connection 620 may also be provided on the bottom wall of the mounting groove 510, as long as the inner connection 620 and the extension 422 are in stable contact.

[0042] Specifically, the outer peripheral side 330 has four sides, and the extension 422 of a single first electrode unit 420 can extend from the top surface 310 to cover one of the sides; or, extend to cover two of the sides; or, extend to cover three of the sides. Correspondingly, the second electrode unit 6 can be provided with one or more inner contacts 620, as long as at least one inner contact 620 is in electrical contact with the extension 422.

[0043] refer to Figure 4 In some embodiments, the outer peripheral side 330 has two opposing first side 331 and two opposing second side 332, the two second side 332 being located on both sides of the heating element 410 in the length extension direction; the main body 421 has extensions 422 on opposite sides perpendicular to the length extension direction of the heating element 410, and the extension 422 on one side sequentially covers the first side 331 and the bottom surface 320.

[0044] Specifically, a heating element 410 is disposed on a top surface 310, and first electrode units 420 are respectively disposed on both sides of the heating element 410 along its length extension direction. The main body 421 of the first electrode unit 420 is disposed on the top surface 310, and extension portions 422 are respectively disposed on both sides of the main body 421 perpendicular to the extension direction of the heating element 410, the extension portions 422 sequentially covering the first side surface 331 and the bottom surface 320. Subsequently, the first electrode unit 420 is wrapped around the outer wall of the base 3, and the first electrode unit 420 is firmly connected to the base 3, resulting in high structural reliability.

[0045] In some embodiments, the liquid-conducting substrate 3 is a porous ceramic structure, and the liquid-conducting substrate 3 is integrally formed with the heating element 4.

[0046] Specifically, the liquid-conducting substrate 3 has a porous structure with micropores and channels inside, utilizing capillary action to transport the liquid aerosol matrix to the heating element 410. The liquid-conducting substrate 3 is a ceramic body and is injection molded in a mold; and by positioning the heating element 4 in the mold, the liquid-conducting substrate 3 and the heating element 4 form an integrated whole during the molding process, thus the liquid-conducting substrate 3 can better match the shape of the heating element 4, reducing assembly difficulty; after molding, the heating element 4 is tightly connected to the wall surface of the substrate 3; and the two are tightly bonded, resulting in good structural stability.

[0047] refer to Figure 3 In some embodiments, the mounting groove 510 has a first inner sidewall 511 corresponding to the first sidewall 331, and the inner connection portion 620 is attached to the first inner sidewall 511.

[0048] Specifically, the substrate 3 is embedded in the mounting groove 510, and the inner part 620 on the first inner side wall 511 will be in close contact with the extension 422 on the first side 331 to achieve electrical contact between the first electrode unit 420 and the second electrode unit 6.

[0049] In one specific embodiment, only one inner connection portion 620 is provided on a single second electrode unit 6. The inner connection portion 620 extends into the mounting groove 510 and is provided on the first inner sidewall 511 on one side of it. The inner connection portion 620 is in electrical contact with the extension portion 422 on the corresponding side.

[0050] In another specific embodiment, reference Figure 3 Each second electrode unit 6 has two opposing inner contacts 620. The inner contacts 620 on both sides extend into the mounting groove 510 and are respectively disposed on the first inner sidewall 511 on both sides. The inner contacts 620 on both sides are in electrical contact with the extensions 422 on both sides. This embodiment is the preferred solution of this application, which effectively increases the electrical contact area between the first electrode unit 420 and the second electrode unit 6 and improves the connection reliability.

[0051] refer to Figure 3 In some embodiments, the inner portion 620 is formed with an abutment protrusion 7 protruding toward the substrate 3.

[0052] Understandably, the inner portion 620 forms an abutment protrusion 7, which presses against the extension portion 422, ensuring a tight contact and reliable electrical contact. Furthermore, this allows the heating element 1 to be tightly embedded in the mounting groove 510, improving connection reliability.

[0053] refer to Figures 1 to 3 In some embodiments, the base body 5 includes a base top wall 520, a base bottom wall 530, and a base outer side wall 540; the base top wall 520 is provided with a mounting groove 510, and the external connection part 610 is provided on the base bottom wall 530. The second electrode unit 6 also includes a fixing part 630 extending from the external connection part 610 and sequentially covering the base outer side wall 540 and the base top wall 520.

[0054] Specifically, the base body 5 has a rectangular structure, and the external part 610 is set on the bottom wall 530 of the base and is used to make electrical connections with the external battery assembly. The flat bottom wall 530 of the base ensures the stability of the external part 610 and facilitates the connection of the external part 610 with the pins or leads of the external battery assembly.

[0055] Understandably, the second electrode unit 6 extends from the bottom wall 530 of the base to cover the outer wall 540 and the top wall 520 of the base, which increases the contact area and bonding strength between the second electrode unit 6 and the base body 5, so that the second electrode unit 6 and the base body 5 are firmly connected.

[0056] In one embodiment, the base body 5 is made of insulating resin, and the second electrode unit 6 is an integral structure with the base body 5.

[0057] The specific manufacturing method is as follows: First, the second electrode unit 6 is manufactured through processes such as stamping. Then, the second electrode unit 6 is placed into the injection mold of the base body 5. Finally, molten insulating resin (such as PEEK, PEI and other high-temperature resistant engineering plastics) is injected into the mold. After cooling, the base body 5 and the second electrode unit 6 are tightly bonded together into an inseparable whole.

[0058] refer to Figure 4 In some embodiments, a groove 8 is provided on the bottom surface 320 of the substrate 3.

[0059] Specifically, a heating element 410 is provided on the top surface 310 of the substrate 3 to form a heating surface. The substrate 3 has a porous structure and uses capillary action to transport the aerosol matrix to the heating surface. By providing a groove 8 on the bottom surface 320, the aerosol matrix in the aerosol generating device will pre-fill the groove 8 and accelerate the penetration of the liquid aerosol matrix from the bottom surface 320 of the substrate 3 to the heating surface.

[0060] refer to Figure 2 In some embodiments, the base body 5 has a connecting channel 9 on the bottom wall 530 of the base that communicates with the groove 8, and two external portions 610 of the second electrode unit 6 are symmetrically arranged on both sides of the connecting channel 9.

[0061] Understandably, the bottom wall 530 of the base is connected to the groove 8 through the connecting channel 9, so that the aerosol matrix can be transported to the groove 8 through the connecting channel 9 without affecting the liquid inlet effect of the aerosol matrix.

[0062] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A heating element, characterized in that, include: A heating element includes a substrate and a heating element disposed on the outer wall of the substrate. The heating element includes a heating body and first electrode units disposed at opposite ends of the heating body. The base assembly includes a base body and a second electrode unit disposed on the base body. The base body is provided with a mounting groove for embedding the base. The second electrode unit includes an outer portion disposed on the outer wall of the base body and an inner portion disposed on the outer portion and extending into the mounting groove. The inner portion is in electrical contact with the first electrode unit.

2. The heating component according to claim 1, characterized in that, The substrate has a top surface, a bottom surface, and an outer peripheral side surface that are disposed opposite to each other; the bottom surface faces the mounting groove, and the heating element is disposed on the top surface; the first electrode unit includes a main body disposed on the top surface and connected to the heating element, and an extension connected to the main body and at least covering the outer peripheral side surface; the inner part is in electrical contact with the extension.

3. The heating component according to claim 2, characterized in that, The outer peripheral side has two opposing first side and two opposing second side, the two second side being located on both sides of the heating element in the length extension direction; the main body has extension portions on opposite sides perpendicular to the length extension direction of the heating element, and the extension portion on one side sequentially covers the first side and the bottom surface.

4. The heating component according to claim 3, characterized in that, The mounting groove has a first inner sidewall corresponding to the first side, and the inner connection portion is attached to the first inner sidewall.

5. The heating component according to any one of claims 1-4, characterized in that, The inner portion has an abutting protrusion that protrudes toward the substrate.

6. The heating component according to any one of claims 1-4, characterized in that, The base body includes a top wall, a bottom wall, and an outer wall; the top wall is provided with the mounting groove, the external connection is provided on the bottom wall, and the second electrode unit also includes a positioning part connected to the external connection and sequentially covering the outer wall and the top wall.

7. The heating component according to claim 6, characterized in that, The base body has a connection channel on the bottom wall of the base that communicates with the mounting groove, and two external parts of the second electrode unit are symmetrically arranged on both sides of the connection channel.

8. The heating component according to any one of claims 1-4, characterized in that, The base is a rectangular or cylindrical structure, and the shape of the mounting groove matches the base.

9. The heating component according to any one of claims 1-4, characterized in that, The substrate and the heating element are an integrated structure; and / or, the base body and the second electrode unit are an integrated structure.

10. An aerosol generator, characterized in that, It includes a liquid storage tank and a heating element as described in any one of claims 1-9 disposed in the liquid storage tank.

11. An aerosol generating device, characterized in that, It includes a power supply module and an aerosol generator as described in any one of claims 10; the power supply module is electrically connected to the external portion of the heating component to supply power to the heating element.

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