CN216147242U

CN216147242U - Aerosol generating device and heating assembly thereof

Info

Publication number: CN216147242U
Application number: CN202122212104.7U
Authority: CN
Inventors: 刘小力; 梁峰; 郭玉
Original assignee: Shenzhen Maishi Technology Co Ltd
Current assignee: Shenzhen Maishi Technology Co Ltd
Priority date: 2021-09-13
Filing date: 2021-09-13
Publication date: 2022-04-01
Anticipated expiration: 2031-09-13
Also published as: EP4353098A1; JP2024528816A; WO2023036036A1; EP4353098A4

Abstract

The utility model relates to an aerosol generating device and a heating component thereof. The heating assembly includes a base body, a heating body disposed on the outer surface of the base body, and two conductive elastic sheets electrically connected to two poles of the heating body respectively. Each of the conductive elastic sheets includes a socket part sleeved on the base body, at least one elastic arm connected with the socket part and in elastic contact with the heating body; One of the electrode parts extends away from the base body. The electrode portion extends to a position away from the base body and the heating body, so that the wire can be easily welded. The pads can be flexibly arranged on the electrode portion, and the pads can be better attached to the surface of the electrode portion, thereby improving the stability of welding. In addition, since there is a certain distance between the solder joint and the heating element, the solder joint temperature can be prevented from being too high to melt when the heating element is heated, thereby increasing the soldering reliability.

Description

Aerosol generating device and heating assembly thereof

Technical Field

The utility model relates to the field of atomization, in particular to an aerosol generating device and a heating assembly thereof.

Background

The heating non-combustion type atomizer is an aerosol generator which heats an atomizing material to form an aerosol which can be sucked by a low-temperature heating non-combustion method. Currently, the heating mode of the aerosol generating device is generally tubular peripheral heating or central embedded heating. Wherein tubular peripheral heating means that the heating element surrounds the aerosol-generating substrate. The heating component of the existing aerosol generating device adopting a tubular peripheral heating mode usually comprises a heating pipe for accommodating aerosol generating substrates and a heating body arranged on the surface of the heating pipe, and after pads are usually silk-screened at two ends of the heating body, leads are welded on the pads to be connected with a power supply. Because silk screen printing pad thickness is less on the one hand makes the welding unstable with the lead wire, and on the other hand pad also influences the stability of lead wire welding with the adhesion strength on heating pipe surface, and the operation is inconvenient during the welding moreover, and is inefficient.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to an improved heating assembly and an aerosol generating device having the same, which overcome the above-mentioned disadvantages of the prior art.

The technical scheme adopted by the utility model for solving the technical problems is as follows: a heating assembly is constructed and used for an aerosol generating device, and the heating assembly comprises a base body, a heating body arranged on the outer surface of the base body and two conductive elastic sheets which are respectively and electrically connected with two poles of the heating body; each conductive elastic sheet comprises a sleeve-joint part sleeved on the base body, at least one elastic arm connected with the sleeve-joint part and in elastic contact conduction with the heating body, and an electrode part extending from one of the at least one elastic arm to the direction far away from the base body.

In some embodiments, the base body is tubular in shape with a receiving cavity formed therein for receiving an aerosol-forming substrate.

In some embodiments, the heat generating body includes an infrared radiation heat generating film.

In some embodiments, the two conductive elastic pieces are respectively disposed at two ends of the base body.

In some embodiments, the number of the elastic arms is multiple, and the multiple elastic arms are uniformly distributed at intervals along the circumferential direction of the socket part.

In some embodiments, each of the conductive elastic pieces further includes at least one limiting portion connected to the socket portion and abutting against the end surface of the base.

In some embodiments, the number of the limiting parts is multiple, and the multiple limiting parts are uniformly distributed at intervals along the circumferential direction of the socket part.

In some embodiments, the number of the elastic arms is multiple, and the elastic arms and the limiting parts are arranged in a staggered manner along the circumferential direction of the socket part.

In some embodiments, the number of the elastic arms is the same as the number of the stopper portions.

In some embodiments, the number of resilient arms is 3-8.

In some embodiments, the conductive elastic sheet is integrally formed by using a metal material.

In some embodiments, the electrode portion includes a first extension portion extending from one side edge of the at least one elastic arm away from the socket portion to a direction away from the base and the heating element.

In some embodiments, the electrode portion further includes a second extension portion extending from the first extension portion away from one side edge of the socket portion in a direction away from the base body and the heating element.

In some embodiments, the first extension extends in a lateral direction and the second extension extends in a vertical direction.

In some embodiments, the second extension is angled from the first extension.

In some embodiments, each of the elastic arms includes a conduction part for being in elastic contact conduction with the heating element and a connection part connected between the conduction part and the socket part.

In some embodiments, the connecting portion is formed by extending an edge of one side of the socket portion close to the heating element.

In some embodiments, the conduction part is in a V shape, and a V-shaped bottom of the conduction part abuts against the heating body.

In some embodiments, the V-shaped bottom of the via is a curved surface.

The utility model also provides an aerosol generating device comprising a heating assembly as described in any of the above.

The implementation of the utility model has at least the following beneficial effects: the electrode part extends to a position far away from the base body and the heating body, so that the lead can be conveniently welded; the bonding pad can be flexibly arranged on the electrode part and can be better attached to the surface of the electrode part, so that the welding stability can be improved; in addition, because the welding spot is away from the heating element, the welding spot can be prevented from melting due to overhigh temperature when the heating element is heated, and the welding reliability is improved.

Drawings

The utility model will be further described with reference to the accompanying drawings and examples, in which:

FIG. 1 is a perspective view of a heating element according to a first embodiment of the present invention;

fig. 2 is a schematic perspective view of the conductive elastic sheet in fig. 1;

FIG. 3 is a perspective view of a heating element according to a second embodiment of the present invention;

figure 4 is a schematic perspective view of an aerosol generating device according to some embodiments of the present invention.

Detailed Description

For a more clear understanding of the technical features, objects and effects of the present invention, embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

In the description of the present invention, it is to be understood that the terms "front", "back", "upper", "lower", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings or orientations and positional relationships that the products of the present invention are conventionally placed in use, are only used for convenience of describing the technical solution, and do not indicate or imply that the devices or elements to be referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be interpreted as limiting the present invention. Furthermore, the use of the terms "vertical," "horizontal," "longitudinal," "transverse," and the like in the description of the utility model is for illustrative purposes only and does not denote a single embodiment.

It is also noted that, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," "disposed," and the like are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. When an element is referred to as being "on" or "under" another element, it can be "directly" or "indirectly" on the other element or intervening elements may also be present.

Furthermore, the terms "first", "second", etc. are merely used for convenience in describing the present technical solution, and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated, whereby a feature defined as "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Fig. 1-2 show a heating assembly 1 according to a first embodiment of the present invention, which may include a base 11, a heating element 13 disposed on a surface of the base 11, and two conductive spring plates 12 electrically connected to two poles of the heating element 13, respectively.

The heat generating body 13 may be an infrared radiation heat generating film and may be coated on the outer surface of the base 11. The infrared radiation heating film can be made of material with high infrared radiance, for example, Fe₂O₃、MnO₂、Co₂O₃、ZrO₂、SiO₂、SiC、TiO₂、Al₂O₃、CeO₂、La₂O₃MgO, TiC, CrC, TiCN, cordierite and perovskite. The infrared radiation heating film can be connected with the positive electrode and the negative electrode of a power supply through two conductive elastic sheets 12, can generate heat after being electrified, and transmits the generated heat to the aerosol-forming substrate accommodated in the substrate 11 from the outer surface of the substrate 11 in an infrared radiation mode to heat the aerosol-forming substrate. The infrared radiation heating mode has stronger penetrating power and radiation power, and can realize the synchronous heating inside and outside the aerosol forming substrate, so that the heating is more uniform. In other embodiments, the heat generating body 13 may also be a resistance conduction heat generating film, or it may be a resistance conduction and infrared radiation composite heat generating film.

The base body 11 is tubular in shape with a receiving cavity 110 formed therein for receiving an aerosol-forming substrate. The substrate 11 may be made of a material that is resistant to high temperature and has a low thermal conductivity and a high infrared transmittance, such as ceramic, quartz glass, and the like. In the present embodiment, the base 11 is a quartz glass tube having a circular tube shape, and the receiving cavity 110 may axially penetrate through the base 11 and may be disposed coaxially with the base 11. In other embodiments, the base 11 may have other shapes such as an oval tube shape, a square tube shape, and the like.

The conductive elastic sheet 12 may be formed integrally by a metal material, such as low-impedance material, for example, phosphor copper or 316 stainless steel, and the surface thereof may be further provided with a metal plating layer, such as gold plating or silver plating. The two conductive elastic pieces 12 can be respectively arranged at two axial ends of the base body 11. Each conductive elastic piece 12 may include a socket portion 121 sleeved on the base 11, at least one elastic arm 122 connected to the socket portion 121, and an electrode portion 123 connected to one of the at least one elastic arm 122.

The engaging portion 121 may be annular and is engaged with one end of the base 11. The elastic arm 122 can extend from the sleeve 121 toward the heating element 13 at one side edge of the heating element 13, and is in elastic contact with and electrically connected to the heating element 13. Preferably, there are a plurality of elastic arms 122, for example, 3-8, and the plurality of elastic arms 122 are elastically clamped outside the base 11 and mechanically and electrically connected to the heating element 13. Further, the plurality of elastic arms 122 may be uniformly distributed along the circumferential direction of the sleeve-joint part 121 at intervals, which is favorable for stable connection with the heating element 13.

In this embodiment, there are four resilient arms 122. Preferably, in other embodiments, the number of the elastic arms 122 may also be three or five. Each elastic arm 122 may include a conduction part 1222 for being in elastic contact with the heating element 13 and a connection part 1221 connected between the conduction part 1222 and the socket part 121. The connecting portion 1221 may extend in the axial direction of the base 11. The conducting part 1222 may be formed by extending one side edge of the connecting part 1221 away from the receiving part 121 and then pre-bending and deforming, so that the conducting part 1222 may generate elastic force to elastically contact the heating element 13, thereby achieving stable electrical connection with the heating element 13. The conduction part 1222 may have a substantially V-shape, and the V-shaped bottom thereof abuts against the heating element 13. Further, the V-shaped bottom of the conduction part 1222 can be designed to be a circular arc shape, so as to avoid the sharp-angled structure from scratching the heating element 13. In other embodiments, the connection portion 1221 may also be vertically connected to the socket portion 121, and it may also extend radially outward from an edge of one side of the socket portion 121 close to the heating element 13. In other embodiments, the connection portion 1221 may also form an angle with the socket portion 121.

The electrode portion 123 may be formed by one of the elastic arms 122 extending outward away from one side edge of the socket portion 121, and specifically, may be formed by one of the elastic arms 122 extending and then bending. The electrode portion 123 may be extended to a position away from the base 11 and the heating element 13 to facilitate wire bonding, and the bonding operation is facilitated. Because electrode portion 123 is the sheetmetal and has certain thickness and cross-sectional area, the pad can set up in a flexible way on electrode portion 123, and it can have than silk screen printing pad bigger thickness, and has good connection tightness between pad and the sheetmetal and can be attached to the surface of sheetmetal better to can improve welded stability. In addition, because the welding spot is at a certain distance from the heating body 13, the welding spot can be prevented from melting due to overhigh temperature when the heating body 13 is heated, and the welding reliability is improved. In the present embodiment, the electrode portion 123 extends outward in the lateral direction and away from the base 11 and the heat generating body 13. In other embodiments, the electrode portion 123 may be processed into other structures.

In some embodiments, each conductive elastic piece 12 may further include a limiting portion 124 connected to the socket portion 121 and abutting against the end surface of the base 11. The limiting portion 124 may be a plurality of arc-shaped pieces, and the plurality of limiting portions 124 may be uniformly distributed at intervals along the circumferential direction of the sleeve portion 121. The limiting part 124 is arranged in a segmented mode, so that punch forming is facilitated. In addition, the plurality of limiting parts 124 can provide certain elastic deformation, and can well abut against the base body 11 to be in good contact with the base body 11 under the condition that the end face of the base body 11 is not flat. Specifically, in the present embodiment, there are four limiting portions 124. These four spacing portions 124 can stagger the setting with four elastic arms 122 along the circumference of cup joint portion 121, promptly, each spacing portion 124 is located between per two adjacent elastic arms 122's the circumferential position, and this structure can make things convenient for the setting of punching press tool, can once only with spacing portion 124 and elastic arm 122 stamping forming, still can further improve the good contact nature between electrically conductive shell fragment 12 and the base member 11. It is understood that in other embodiments, there may be only one limiting portion 124, and the one limiting portion 124 may have a circular ring-shaped sheet shape.

Fig. 3 shows a heating assembly 1 in a second embodiment of the present invention, which is different from the first embodiment mainly in that in the present embodiment, the electrode portion 123 may include a first extension portion 1231 connected to one elastic arm 122 of the at least one elastic arm 122 and a second extension portion 1232 connected to the first extension portion 1231, and an included angle may be formed between the first extension portion 1231 and the second extension portion 1232. Specifically, the first extension part 1231 may extend outward in the radial direction of the base 11 from one side edge of the elastic arm 122 away from the sleeve part 121 to be away from the base 11 and the heating element 13. The second extension part 1232 may be formed by bending the first extension part 1231, and may extend in a direction away from the base 11 and the heating element 13 in the axial direction of the base 11.

Fig. 4 illustrates an aerosol-generating device 100 according to some embodiments of the utility model, the aerosol-generating device 100 may be generally rectangular cylindrical in shape and may include a housing 2 and a heating assembly 1 disposed within the housing 2. The heating element 1 may adopt the heating element structure in any of the above embodiments. It is understood that in other embodiments, the aerosol generating device 100 is not limited to being rectangular and cylindrical, but may be other shapes such as square, cylindrical, elliptical, etc.

The top of the housing 2 is provided with a socket 20 into which an aerosol generating substrate 200 is inserted, the cross-sectional shape and dimensions of the socket 20 being adapted to the cross-sectional shape and dimensions of the aerosol generating substrate 200, and the aerosol generating substrate 200 being insertable into the base 11 of the heating assembly 1 via the socket 20 into contact with the inner wall surface of the base 11. The heating assembly 1, when energised to generate heat, can transfer heat to the aerosol-generating substrate 200 to effect a toasting heating of the aerosol-generating substrate 200. The top of the housing 2 may be further provided with a dust cap 3 for covering or exposing the socket 20, and the dust cap 3 may slide back and forth on the top wall of the housing 2 under an external force. When the aerosol generating device 100 is not needed, the dust cap 3 can be pushed to shield the socket 20, so as to prevent dust from entering the socket 20. When required for use, the dust cap 3 is pushed to expose the socket 20 so that the aerosol generating substrate 200 is inserted from the socket 20.

The aerosol-generating substrate 200 may be cylindrical and may be a solid sheet or filament of plant material such as roots, stems, leaves and the like. The aerosol-generating device 100 subjects the aerosol-generating substrate 200 inserted therein to low-temperature baking heating to release the aerosol extract in the aerosol-generating substrate 200 in a non-combustible state. In other embodiments, the cross-sectional shape of the aerosol-generating substrate 200 is not limited to being circular, but may be oval, square, polygonal, and the like.

It is to be understood that the above-described respective technical features may be used in any combination without limitation.

The above examples only express the preferred embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention; it should be noted that, for those skilled in the art, the above technical features can be freely combined, and several changes and modifications can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention; therefore, all equivalent changes and modifications made within the scope of the claims of the present invention should be covered by the claims of the present invention.

Claims

1. A heating assembly for use in an aerosol generating device, characterized in that it comprises a base (11), a heating element (13) arranged on the outer surface of the base (11), and a heating element (13) separately provided with the heating element (13) two conductive elastic sheets (12) electrically connected to the two poles of the ) at least one elastic arm (122) connected and in elastic contact with the heating body (13) and an electrode extending away from the base (11) from one of the at least one elastic arm (122) Section (123).

2 . The heating assembly according to claim 1 , wherein the base body ( 11 ) is tubular, and an accommodation cavity ( 110 ) for accommodating the aerosol-forming substrate is formed in the base body ( 11 ). 3 .

3. The heating assembly according to claim 1, wherein the heating body (13) comprises an infrared radiation heating film.

4 . The heating assembly according to claim 1 , wherein the two conductive elastic sheets ( 12 ) are respectively disposed on both ends of the base body ( 11 ). 5 .

5 . The heating assembly according to claim 1 , wherein the number of the elastic arms ( 122 ) is plural, and the plurality of the elastic arms ( 122 ) are along the circumferential direction of the socket portion ( 121 ). 6 . Evenly spaced distribution.

6. The heating assembly according to claim 1, characterized in that, each of the conductive elastic pieces (12) further comprises a At least one stopper (124).

7 . The heating assembly according to claim 6 , wherein the number of the limiting portions ( 124 ) is plural, and the plurality of the limiting portions ( 124 ) are along the length of the socket portion ( 121 ). 8 . Evenly spaced circumferentially.

8 . The heating assembly according to claim 7 , wherein the number of the elastic arms ( 122 ) is plural, and the plurality of the elastic arms ( 122 ) and the plurality of the limiting portions ( 124 ) are along the edge The circumferential direction of the socket portion (121) is staggered.

9 . The heating assembly according to claim 8 , wherein the number of the elastic arms ( 122 ) is the same as the number of the limiting portions ( 124 ). 10 .

10. The heating assembly according to claim 1, wherein the number of the elastic arms (122) is 3-8.

11 . The heating assembly according to claim 1 , wherein the conductive elastic sheet ( 12 ) is integrally formed with a metal material. 12 .

12. The heating assembly according to any one of claims 1-11, wherein the electrode part (123) comprises a distance from the at least one elastic arm (122) from the at least one elastic arm (122). A first extension portion (1231) extending from one side edge of the socket portion (121) in a direction away from the base body (11) and the heating body (13).

13. The heating assembly according to claim 12, characterized in that, the electrode part (123) further comprises a side edge of the first extension part (1231) away from the sleeve part (121) A second extension portion (1232) extending in the direction of the base body (11) and the heat generating body (13).

14. The heating assembly according to claim 13, wherein the first extension portion (1231) extends in a lateral direction, and the second extension portion (1232) extends in a vertical direction.

15. The heating assembly according to claim 13, wherein an angle is formed between the second extension portion (1232) and the first extension portion (1231).

16. The heating assembly according to any one of claims 1-11, characterized in that each of the elastic arms (122) comprises a conducting portion for elastically contacting and conducting with the heating element (13) (1222) and a connecting portion (1221) connected between the conducting portion (1222) and the socket portion (121).

17 . The heating assembly according to claim 16 , wherein the connecting portion ( 1221 ) is formed by extending from one side edge of the sleeve portion ( 121 ) close to the heating body ( 13 ). 18 .

18. The heating assembly according to claim 16, wherein the conducting portion (1222) is V-shaped, and the V-shaped bottom of the conducting portion (1222) abuts against the heating body (13) superior.

19. The heating assembly according to claim 18, wherein the V-shaped bottom of the conducting portion (1222) is an arc surface.

20. An aerosol generating device, characterized by comprising the heating assembly according to any one of claims 1-19.