Heating assembly and aerosol generating device

Abstract

The utility model provides a heating assembly and an aerosol generating device, and the heating assembly comprises a heating needle which comprises an insertion end and a fixed end which are oppositely arranged; the metal piece is welded to the fixed end of the heating needle; the first sealing piece is arranged at the fixed end of the heating needle, and the metal piece is located in the first sealing piece. According to the heating assembly provided by the invention, the heating needle is welded with the metal piece and then is subjected to injection molding with the first sealing piece, so that the connection between the heating needle and the first sealing piece is firmer, and the structure of the heating assembly is simpler.

Description

Technical Field

[0001] The present application relates to the technical field of aerosol generation, and particularly to a heating component and an aerosol generating device. Background Art

[0002] An aerosol generating device includes a heating needle. An aerosol generating article is inserted into the heating needle for heating but not burning to generate an aerosol. In such a centrally heated aerosol generating device, the air flow usually enters from the gap formed between the aerosol generating device and the aerosol generating article, and then passes through the aerosol generating article to bring the generated aerosol to the user. To ensure the airtightness at the heating needle, the heating needle generally adopts an injection molding method with a seal. However, the traditional injection molding structure is complex and has poor reliability. Summary of the Utility Model

[0003] To solve the problems of complex structure and poor reliability of the injection molding of the heating needle and the seal.

[0004] The present application provides a heating component, including: a heating needle including an insertion end and a fixed end disposed opposite to each other; a metal member welded to the fixed end of the heating needle; a first seal disposed at the fixed end of the heating needle and the metal member being located inside the first seal.

[0005] The present application provides a heating component, the heating component further includes a second seal. A receiving groove is defined on the outer peripheral wall of the first seal, and the receiving groove extends along the circumferential direction of the heating needle. The second seal is located in the receiving groove.

[0006] The present application provides a heating component. A first protrusion is provided in the receiving groove, and a first groove is provided on the second seal. The first seal and the second seal are fitted through the first protrusion and the first groove.

[0007] The present application provides a heating component. A second protrusion is provided on the side of the second seal facing away from the first seal, and the second protrusion protrudes from the outer peripheral wall of the second seal. The second protrusion is used for the assembly of the second seal and other structures.

[0008] The present application provides a heating component. The heating needle is a hollow tube body with an opening at one end, and the first seal is disposed at the end of the heating needle with the opening, and the opening is exposed to the first seal.

[0009] The present application provides a heating component. The end face of the first seal farthest from the insertion end includes an abutting portion, and the abutting portion extends along the radially outward direction of the heating needle.

[0010] The present application provides a heating component. A notch is provided on the end face of the first seal farthest from the insertion end, and the notch is adapted to allow a wire to pass through.

[0011] The present application provides a heating component. A chamfer is provided at the contact between the first seal and the heating pin.

[0012] The present application provides a heating component, and the metal part is annular.

[0013] The present application provides an aerosol generating device, which includes a housing and the above-mentioned heating component, and the heating component is located inside the housing.

[0014] In the heating component provided by the present application, the heating pin and the metal part are welded and then injection-molded with the first seal, so that the connection between the heating pin and the first seal is more firm, and the structure of the heating component is simpler. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] One or more embodiments are exemplarily illustrated by pictures in the corresponding drawings. These exemplary illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are represented as similar elements, unless otherwise stated, and the drawings in the figures do not constitute a scale limitation.

[0016] Figure 1 It is a schematic diagram of a heating component according to an embodiment of the present application;

[0017] Figure 2 It is a schematic diagram of a heating pin and a metal part according to an embodiment of the present application;

[0018] Figure 3 It is a schematic diagram of a first seal according to an embodiment of the present application;

[0019] Figure 4 It is a schematic diagram of a first seal according to an embodiment of the present application;

[0020] Figure 5 It is a schematic diagram of a second seal according to an embodiment of the present application;

[0021] Figure 6 It is a schematic diagram of an aerosol generating device according to an embodiment of the present application.

[0022] In the figure:

[0023] 10. Heating component;

[0024] 1. Heating pin; 11. Insertion end; 12. Fixed end; 13. Opening;

[0025] 2. Metal part;

[0026] 3. First seal; 31. Receiving groove; 32. First protrusion; 33. Contact portion; 34. Notch;

[0027] 4. Second seal; 41. First groove; 42. Second protrusion;

[0028] 20. Housing;

[0029] 100. Aerosol generating device. Detailed implementation manner

[0030] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0031] The terms "first", "second", and "third" in the present application are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity or order of the indicated technical 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 or movement situation between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indication will also change accordingly. In addition, the terms "comprising" and "having" and any variations thereof 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 may optionally further include steps or units not listed, or may optionally further include other steps or units inherent to these processes, methods, products, or devices.

[0032] Referring to "embodiment" in this article means that a specific feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present application. The phrase appears in various positions in the specification 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 may be combined with other embodiments.

[0033] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element, or there may be one or more intermediate elements therebetween. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation.

[0034] The present application provides a heating component 10, as Figure 1 shown, including: a heating pin 1, a metal part 2 and a first seal 3.

[0035] Specifically, the heating pin 1 includes an insertion end 11 and a fixed end 12 which are oppositely arranged. The heating pin 1 is in a long strip shape, one end in the length direction of the heating pin 1 is the insertion end 11, and the other end is the fixed end 12. The metal part 2 is welded to the fixed end 12 of the heating pin 1. The first seal 3 is arranged at the fixed end 12 of the heating pin 1 and the metal part 3 is located inside the first seal 2.

[0036] In the heating component 10 provided by the present application, after the heating pin 1 and the metal part 2 are welded, they are then injection-molded with the first seal 3, so that the connection between the heating pin 1 and the first seal 3 is more firm and the structure of the heating component 10 is simpler.

[0037] In an embodiment of the present application, as Figure 2 shown, the insertion end 11 of the heating pin 1 refers to the end where the aerosol-generating article is inserted into the heating pin 1, and the fixed end 12 of the heating pin 1 refers to the end of the heating pin 1 that is away from the aerosol-generating article and is assembled with the aerosol-generating device 100.

[0038] In an embodiment of the present application, the heating pin 1 and the metal part 2 are welded by laser or soldering.

[0039] In an embodiment of the present application, the heating pin 1 is in a cylindrical shape, an elliptical cylindrical shape or a prismatic shape. In an embodiment of the present application, the metal part 2 is in a ring shape, the inner ring of the ring-shaped metal part 2 is circular, elliptical or polygonal, and the shape of the outer ring of the ring-shaped metal part 2 can be determined according to the actual situation. In an embodiment of the present application, the heating pin 1 is in a columnar shape, and the shape of the inner ring of the metal part 2 is determined according to the cross-sectional shape of the columnar heating pin 1.

[0040] In an embodiment of the present application, the first seal 3 is formed by injection-molding of injection-molding plastic pellets. In an embodiment of the present application, the first seal 3 is formed by injection-molding of a plastic bracket and injection-molding plastic pellets.

[0041] In an embodiment of the present application, as Figures 3 - 5As shown, the heating component 10 further includes a second seal 4. Wherein, a receiving groove 31 is defined on the outer peripheral wall of the first seal 3, the receiving groove 31 extends along the circumferential direction of the heating pin 1, and the second seal 4 is located in the receiving groove 31. In an embodiment of the present application, the second seal 4 is formed by injecting plastic particles through injection molding. In an embodiment of the present application, the first seal 4 is made of silica gel and has a certain elasticity.

[0042] In an embodiment of the present application, a first protrusion 32 is provided in the receiving groove 31, the second seal 4 is provided with a first groove 41, and the first seal 3 and the second seal 4 are fitted through the first protrusion 32 and the first groove 41.

[0043] In an embodiment of the present application, a second protrusion 42 is provided on the side of the second seal 4 facing away from the first seal 4, the second protrusion 42 protrudes from the outer peripheral wall of the second seal 4, and the second protrusion 42 is used for the assembly of the second seal 4 and other structures. In an embodiment of the present application, the second protrusion 42 is an external thread, and the second seal 4 is assembled with other structures through the external thread on the outer surface. In an embodiment of the present application, the second protrusion 42 cooperates with the groove structure of other structures, so that the second seal 4 is assembled to other structures. In an embodiment of the present application, the second protrusion 42 cooperates with the protrusion of other structures, the second protrusion 42 has an inclined surface, and the second seal 4 is guided by the inclined surface to cooperate with the protrusion of other structures.

[0044] In an embodiment of the present application, the heating pin 1 is a hollow tube body with an opening 13 at one end, the first seal 3 is arranged at the end of the heating pin 1 with the opening 13, and the opening 13 is exposed to the first seal 3. In an embodiment of the present application, the wire can enter the heating pin 1 from the opening 13 of the heating pin 1 and be welded to the inner surface of the heating pin 1.

[0045] In an embodiment of the present application, the heating pin 1 is a solid structure, and a wire is welded to the fixed end 12 of the heating pin 1.

[0046] In an embodiment of the present application, the heating pin 1 is a heating element heated by resistance.

[0047] In an embodiment of the present application, the heating pin 1 is a receptor, and the aerosol generating device 100 can emit electromagnetic waves through an electromagnetic coil, and the receptor generates heat after sensing the electromagnetic waves.

[0048] In an embodiment of the present application, the end face of the first seal 3 farthest from the insertion end 11 includes an abutting portion 33, and the abutting portion 33 extends along the radially outward direction of the heating pin 1. After the heating component 10 is installed in the aerosol generating device 100, the abutting portion 33 can be used as a limiting structure to be assembled with other structures.

[0049] In one embodiment of the present application, a notch 34 is provided on the end face of the first seal 3 that is farthest from the insertion end 11, and the notch 34 is adapted to allow a wire to pass through.

[0050] In one embodiment of the present application, a chamfer is provided at the contact between the first seal 3 and the heating needle 1, which facilitates the injection molding of the first seal 3 and also facilitates the separation of the first seal 3 from the injection mold. In one embodiment of the present application, a chamfer is provided at the contact between the surface of the first seal 3 facing the insertion end 11 and the heating needle 1, which facilitates the demolding of the mold of the first seal 3 facing the insertion end 11 during the injection molding. In one embodiment of the present application, a chamfer is provided at the contact between the surface of the first seal 3 away from the insertion end 11 and the heating needle 1, which facilitates the demolding of the mold of the first seal 3 away from the insertion end 11 during the injection molding.

[0051] One embodiment of the present application further provides an aerosol generating device 100, as Figure 6 shown, including a housing 20 and the above-mentioned heating assembly 10, and the heating assembly 10 is located inside the housing 20.

[0052] One embodiment of the present application proposes a method of heating rather than burning an aerosol generating article such as a cigarette, so that at least one component of the aerosol generating article volatilizes or is released to form an aerosol for inhalation.

[0053] In an alternative embodiment, the aerosol generating article preferably uses a tobacco-containing material that releases volatile compounds from the matrix when heated; or it can also be a non-tobacco material that is suitable for electrically heated smoking after heating. The aerosol generating article preferably uses a solid matrix, which can include one or more of powder, granule, fragment, strip, ribbon or flake of vanilla leaf, tobacco leaf, homogenized tobacco, expanded tobacco, etc.; or the solid matrix can contain additional tobacco or non-tobacco volatile flavor compounds to be released when the matrix is heated.

[0054] When the aerosol generating article is received in the aerosol generating device 100, part of it, such as the filter tip, is exposed outside the aerosol generating device 100, which is beneficial for the user to inhale.

[0055] The overall shape of the aerosol generating device 100 according to one embodiment of the present application is generally constructed in a longitudinally elongated shape. The aerosol generating device 100 includes: a housing 20, which basically defines the outer surface of the aerosol generating device 100 and has a proximal end and a distal end that are opposite to each other in the length direction; in use, the proximal end is the end close to the user for facilitating the operation of receiving the aerosol generating article and inhaling, and the distal end is the end away from the user.

[0056] In some examples, the housing 20 may be formed of a metal or alloy such as stainless steel, aluminum, etc. Other suitable materials include various plastics (e.g., polycarbonate), metal-plating over plastic, ceramics, and the like.

[0057] In some examples, the aerosol-generating device 100 further includes: a power cell for supplying power; the power cell is located within the housing 20 or is arranged near the distal end; the power cell is arranged substantially along the longitudinal extension of the aerosol-generating device 100;

[0058] A charging connector, such as a USB-Type-C interface, etc., is formed or arranged between the power cell and the distal end for charging the power cell;

[0059] A circuit board, such as a PCB board or an FPC board, etc., for controlling the power cell to supply power to the heating component 10; in a specific implementation, the circuit board is arranged substantially along the longitudinal extension of the aerosol-generating device 100.

[0060] In a preferred embodiment, the DC supply voltage provided by the power cell is in the range of about 2.5V to about 9.0V, and the amperage of the DC current that the power cell can provide is in the range of about 2.5A to about 20A. Usually, the power cell is a rechargeable battery. As an alternative, the power cell may be another form of charge storage device, such as a capacitor. The power cell may need to be recharged and may have a capacity that allows sufficient energy to be stored for one or more puffings; for example, the power cell may have sufficient capacity to allow continuous aerosol generation during a period of about six minutes or a multiple of six minutes. In another example, the power cell may have sufficient capacity to allow the heating start of a predetermined number of aerosol-generating articles.

[0061] It should be noted that the description and drawings of the present application give preferred embodiments of the present application, but are not limited to the embodiments described in this specification. Further, for those of ordinary skill in the art, improvements or transformations can be made according to the above description, and all such improvements and transformations should fall within the protection scope of the appended claims of the present application.

Claims

1. A heating component, characterized in that, Comprising: A heating needle, including an insertion end and a fixed end arranged opposite to each other; A metal part, the metal part being welded to the fixed end of the heating needle; A first seal, the first seal being arranged at the fixed end of the heating needle and the metal part being located inside the first seal.

2. The heating component according to claim 1, wherein, The heating assembly further includes a second seal. A receiving groove is defined on the outer peripheral wall of the first seal, and the receiving groove extends along the circumferential direction of the heating needle. The second seal is located in the receiving groove.

3. The heating component according to claim 2, characterized in that A first protrusion is provided in the receiving groove, and a first groove is provided on the second seal. The first seal and the second seal are fitted through the first protrusion and the first groove.

4. The heating component according to claim 2, characterized in that A second protrusion is provided on the side of the second seal facing away from the first seal, and the second protrusion protrudes from the outer peripheral wall of the second seal. The second protrusion is used for assembling the second seal with other structures.

5. The heating component according to claim 1, characterized in that The heating needle is a hollow tube body with an opening at one end, the first seal is arranged at the end of the heating needle with the opening, and the opening is exposed to the first seal.

6. The heating component according to claim 1, characterized in that The end face of the first seal farthest from the insertion end includes an abutting portion, and the abutting portion extends along the radially outward direction of the heating needle.

7. The heating component according to claim 1, wherein A notch is provided on the end face of the first seal farthest from the insertion end, and the notch is adapted for a wire to pass through.

8. The heating component according to claim 1, characterized in that, A chamfer is provided at the contact position between the first seal and the heating needle.

9. The heating component according to claim 1, characterized in that: The metal part is annular.

10. An aerosol generating device, characterized in that, Comprising a housing and the heating assembly according to any one of claims 1-9, and the heating assembly is located inside the housing.

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