CN115530438A - Aerosol generating device and its heating device - Google Patents

Abstract

The invention relates to an aerosol generating device and a heating device thereof, wherein the heating device is used for the aerosol generating device and comprises: the heating device comprises a base body, a first heating device and a second heating device, wherein the base body comprises at least two heating areas, and a first partition for blocking heat transfer is arranged between every two adjacent heating areas; and at least two heating layers respectively arranged on the at least two heating areas. According to the invention, the first partition is arranged between every two adjacent heating areas, so that the heat transfer between at least two heating areas can be reduced.

Description

Aerosol generating device and its heating device

technical field

The invention relates to the field of heat-not-burn appliances, and more specifically relates to an aerosol generating device and a heating device thereof.

Background technique

An aerosol-generating device is an electronic device that heats without burning an aerosol-generating substrate (a solid substrate such as plant leaf products such as tobacco). The core component of the aerosol generating device is the heating device. The heating device heats the aerosol generating substrate to a temperature that can generate aerosol but is not high enough to burn, so that the aerosol generating substrate can be produced without burning. aerosols.

The heating device in the related art includes a base body and a heat-generating layer arranged on the base body with dual-zone or multi-zone time-division and segmental heating. The base body is a whole. The heat will be quickly transferred to the adjacent area that does not need to be heated, resulting in heat loss, thereby increasing power consumption.

Contents of the invention

The technical problem to be solved by the present invention is to provide an improved aerosol generating device and a heating device thereof.

The technical solution adopted by the present invention to solve the technical problem is as follows: a heating device, including a substrate, the heating device is provided with at least two sections of heating regions on the substrate and is arranged between two adjacent sections of the heating regions And the first partition is used to block the heat transfer between two heating regions.

In some embodiments, the base body is cylindrical.

In some embodiments, the at least two heating regions are distributed in the axial direction of the base body.

In some embodiments, the first partition includes at least one slot, and the at least one slot runs through the inner surface and the outer surface of the base body and extends along the circumference of the base body.

In some embodiments, the first partition includes a plurality of through holes, the plurality of through holes pass through the inner surface and the outer surface of the base body, and are distributed at intervals along the circumference of the base body.

In some embodiments, the material of the base includes metal or ceramics.

In some embodiments, the heating device further includes an insulating layer, and the insulating layer includes at least two insulating parts, and the at least two insulating parts are respectively arranged on the outer surfaces of the at least two heating regions, and the insulating layer includes at least two insulating parts. At least two heat generating layers are respectively arranged on the outer surfaces of the at least two insulating parts.

In some embodiments, a second partition is provided between every two insulating parts, and the second partition corresponds to the first partition.

In some embodiments, the heating device further includes a protective layer, and the protective layer includes at least two protective parts, and the at least two protective parts respectively cover the at least two heat generating layers.

In some embodiments, a third partition is provided between every two protection parts, and the third partition corresponds to the first partition.

In some embodiments, the at least two heating layers are respectively disposed outside the at least two heating regions.

In some embodiments, the heating device includes at least two other heat-generating layers, and the at least two other heat-generating layers are respectively arranged inside the at least two heating regions.

In some embodiments, the at least two heating regions are cylindrical and integrally connected.

In some embodiments, the at least two heat generating layers include a resistive film layer, and the at least two heat generating layers are in a spiral shape.

In some embodiments, the base body further includes a fixing area disposed at an end of the base body, and the fixing area is integrally connected with the heating area.

The present invention also provides an aerosol generating device, comprising the heating device described in any one of the above.

The beneficial effect of the present invention is that: the present invention can reduce the heat transfer between at least two heating regions by providing a first partition between every two adjacent heating regions.

Description of drawings

The present invention will be further described below in conjunction with accompanying drawing and embodiment, in the accompanying drawing:

Fig. 1 is a schematic diagram of a three-dimensional structure of an aerosol generating device in some embodiments of the present invention;

Fig. 2 is a three-dimensional schematic diagram of the heating device of the aerosol generating device shown in Fig. 1;

Fig. 3 is a schematic diagram of an exploded structure of the heating device shown in Fig. 2;

Fig. 4 is a partial schematic diagram of a first partition of the heating device shown in Fig. 3;

Fig. 5 is a schematic cross-sectional view of a schematic diagram of an exploded structure of the heating device shown in Fig. 3;

Fig. 6 is a perspective view of the structure of the heating device shown in Fig. 3 when the heating layer is disposed on the substrate.

detailed description

In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described in detail with reference to the accompanying drawings.

In describing the present invention, it is to be understood that the terms "longitudinal", "axial", "length", "width", "upper", "lower", "top", "bottom", "inner", The orientation or positional relationship indicated by "outside" is based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship that is usually placed when the product of the present invention is used, and is only for the convenience of describing the present invention and simplifying the description, rather than Nothing indicating or implying that a referenced device or element must have a particular orientation, be constructed, and operate in a particular orientation should therefore not be construed as limiting the invention.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In the description of the present invention, "plurality" means at least two pieces, such as two pieces, three pieces, etc., unless otherwise specifically defined.

In the present invention, unless otherwise clearly specified and limited, terms such as "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection , or integrated; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two components or the interaction relationship between two components, unless otherwise specified limit. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

Fig. 1 shows an aerosol generating device 1 and an aerosol generating substrate 2 detachably inserted at one end of the aerosol generating device 1 in some embodiments of the present invention. The aerosol generating device 1 can be in the shape of a square column in some embodiments, so as to be convenient for the user to hold, and it can heat the aerosol generating substrate 2 inserted in it at a low temperature to release it in a non-combustible state. Aerosol extracts in aerosol generating matrix 2. The aerosol-generating substrate 2 may be cylindrical in some embodiments, and it may comprise a solid aerosol-generating substrate of treated plant leaves. It can be understood that the aerosol generating device 1 is not limited to be in the shape of a square column, and in some other embodiments, it can also be in other shapes such as a column, an ellipse, and the like.

The aerosol generating device 1 may include a heating device 10 and a casing 20 for carrying the heating device 10 in some embodiments. The heating device 10 can be in the shape of a cylinder in some embodiments, and the aerosol generating substrate 2 can be detachably inserted therein to heat and bake the aerosol generating substrate 2 from the periphery. In some embodiments, the aerosol generating device 1 may further include a battery (not shown) disposed in the casing 20 . The battery is electrically connected to the heating device 10 to provide power to the heating device 10 .

Referring to FIG. 2 and FIG. 5 together, in some embodiments, the heating device 10 may include a base body 11, an insulating layer 12 disposed on the outer surface of the base body 11, two heating layers 13 disposed on the outer surface of the insulating layer 12, and two A protective layer 14 on the outer surface of the heat generating layer. Understandably, the number of heat generating layers 13 may be greater than two.

The base body 11 can be cylindrical in some embodiments and can be made of metal material, which includes two heating regions integrally connected in the axial direction and a first partition 113 arranged between the two heating regions, specifically Specifically, the two heating areas include a first heating area 111 and a second heating area 112 , and a first partition 113 is provided between the first heating area 111 and the second heating area 112 . When the first heating area 111 is heated and the second heating area 112 is not heated, the first partition 113 can reduce the heat transfer from the first heating area 111 to the second heating area 112, thereby reducing the heat of the first heating area 111 Dissipation, thereby improving the heating efficiency of the first heating region 111 and reducing power consumption. At the same time, when the first heating zone 111 is heated and the second heating zone 112 is not heated, the temperature of the first heating zone 111 can be rapidly increased, thereby reducing the preheating time; further, due to the fixing of the first heating zone 111, the heated medium The area of the atomized aerosol is reduced, and the atomized aerosol generating substrate can be rapidly heated in a small area to increase the concentration of the aerosol. Similarly, when the second heating zone 112 is heated and the first heating zone 111 is not heated, the first partition 113 can reduce the heat transfer from the second heating zone 112 to the first heating zone 111, thereby reducing the heat transfer of the second heating zone 111. The heat of 112 is dissipated, thereby improving the heating efficiency of the second heating region 112 and reducing power consumption. At the same time, when the second heating zone 112 is heated and the first heating zone 111 is not heated, the temperature of the second heating zone 112 can be rapidly increased, thereby reducing the preheating time; further, due to the fixing of the second heating zone 112, the heated The area of the medium is reduced, so that the atomized aerosol generating substrate can be rapidly heated in a small area to increase the concentration of the aerosol. In some embodiments, two heat generating layers 13 are arranged outside the two heating regions respectively, and two other heat generating layers 13 may also be arranged outside the two heating regions respectively. It can be understood that the base body 11 is not limited to be in a cylindrical shape, and may also be in a square cylindrical shape, a regular polygonal cylindrical shape, or other cylindrical shapes. It can also be understood that the base body 11 is not limited to be in a cylindrical shape, and may also be in other shapes such as a sheet. It can also be understood that the base body 11 is not limited to be made of conductive materials such as metals, and can also be made of non-metallic materials such as heat-conducting ceramics. It can be understood that the number of heating areas is not limited to two, and there may be three or more, and a first partition 113 is provided between every two adjacent heating areas.

In some embodiments, the first partition 113 may include a plurality of slots, and each slot runs through the inner surface and the outer surface of the base body 11 , so that the slots have a better heat insulation effect. In some embodiments, the slots may be strip-shaped and have a certain extension length. Each slot extends along the circumferential direction of the cylindrical base 11 , and a plurality of slots are evenly spaced along the circumferential direction of the cylindrical base 11 . Understandably, each first partition 113 may only include one slot. In some other embodiments, the slot may not penetrate the inner and outer surfaces of the cylindrical base 11 , for example, the slot may also extend from the outer surface of the cylindrical base 11 to the inner surface without penetrating the inner surface. It can be understood that the more space occupied by the first partition 113 on the base 11 , the better the heat insulation effect, but too much space may lead to insufficient structural strength of the base 11 and affect the heating effect. In other embodiments, the number and size of the slots can be designed according to the material and thickness of the substrate 11 .

In some embodiments, the first partition 113 may include a plurality of through holes (not shown), and these through holes may be distributed axially along the base body 11 . Each through hole runs through the inner surface and the outer surface of the base body 11 . It can be understood that the shape of the through hole is not limited, for example, it can be various shapes such as circle, ellipse, square or triangle. Understandably, the arrangement of the plurality of through holes can be set as required. It can be understood that the first partition 113 can be realized by cutting grooves and/or through holes, or by other methods, which are not limited here.

The insulating layer 12 may cover the outer surface of the substrate 11 in some embodiments, including a first insulating part 121 and a second insulating part 122, the first insulating part 121 and the second insulating part 122 cover the first heating region 111 and the second insulating part 122 respectively. on the second heating zone 112 . A second partition 123 is provided between the first insulating part 121 and the second insulating part 122 , and the size, shape and position of the second partition 123 correspond to the size, shape and position of the first partition 113 . The insulating layer 12 can be formed by one of dip coating, sintering, magnetron sputtering and spraying, and covers the outer surface of the substrate 11 . Specifically, the insulating layer 12 may also be a ceramic thin film formed by a casting process in some embodiments, the heating layer 13 is silk-printed on the insulating layer 12 and the ceramic thin film is wound on the base 11 and the heating layer 13 is located opposite to the One side of the substrate 11 , and then sintering the ceramic thin film and the heating layer 13 on the substrate 11 . Understandably, when the base body 11 is made of non-metallic materials such as heat-conducting ceramics, the insulating layer 12 may not be provided.

In some embodiments, the heat generating layer 13 can be a spiral resistive film layer, which includes a first heat generating layer and a second heat generating layer, and the first heat generating layer and the second heat generating layer are respectively bonded to the first insulating part by silk screen or the like. 121 and the second insulating part 122, so that the segmented heating of the aerosol-generating substrate can also be realized. The first heat-generating layer and the second heat-generating layer can be distributed along the axial direction of the cylindrical substrate 11, so as to heat the aerosol-generating substrate in sections along the axial direction. Understandably, the first heat generating layer and the second heat generating layer may also be distributed along the circumferential direction of the base body 11 . When a voltage is applied to the two poles of the heating layer 13, the current passes through the heating layer 13 to generate heat, thereby realizing the baking and heating of the aerosol-generating substrate. It can be understood that the structural form of the heating layer 13 is not limited, for example, it may be a heating film, a metal heating wire, a metal heating sheet or a metal heating mesh. It can be understood that the number of heat generating layers 13 is not limited to two, and may also be three or more.

In some embodiments, the protection layer 14 may include a first protection portion 141 and a second protection portion 142 , which respectively cover the two heat generating layers 13 . In some embodiments, the protective layer 14 may be formed by glazing with glass frit or ceramic paint. The protective layer 14 can reduce the erosion effect of oxygen and impurities on the heating layer 13, and prolong the service life of the heating layer. In some embodiments, the outer surface of the protective layer 14 may be provided with a third partition 143 , and the shape, size and position of the third partition 143 correspond to the shape, size and position of the first partition 113 .

Referring to FIG. 6 together, in some embodiments, the base body 11 may further include a fixed area 114 disposed at the end of the base body 11 in some embodiments, the fixed area 114 is integrally connected with the second heating area 112, and the fixed area 114 is used for The fixed installation of the base body 11 is realized. It can be understood that in some other embodiments, the fixing region 114 and the second heating region 112 in the base body 11 can also be made into two separate parts, and at the same time, the fixing region 114 can be made of a heat sink with a small heat capacity and a low thermal conductivity. The second heating area 112 can be made of materials with high thermal conductivity, such as PEEK or ceramic material, so as to reduce the transfer of heat on the second heating area 112 through the fixed area 114 .

It can be understood that the above examples only express the preferred implementation of the present invention, and its description is relatively specific and detailed, but it should not be interpreted as limiting the patent scope of the present invention; it should be pointed out that for those of ordinary skill in the art In other words, on the premise of not departing from the concept of the present invention, the above-mentioned technical features can be freely combined, and some modifications and improvements can also be made, all of which belong to the protection scope of the present invention; All equivalent transformations and modifications should fall within the scope of the claims of the present invention.

Claims (16)

1. A heating device for an aerosol generating device, characterized in that it comprises: The substrate includes at least two heating regions, and a first partition for blocking heat transfer is arranged between every two adjacent heating regions; and At least two heating layers are respectively arranged on the at least two heating regions. 2. The heating device according to claim 1, wherein the base body is cylindrical. 3. The heating device according to claim 2, wherein the at least two heating regions are distributed in the axial direction of the base body. 4. The heating device according to claim 3, wherein the first partition comprises at least one slot, the at least one slot runs through the inner surface and the outer surface of the base body, and runs along the Circumferential extension. 5. The heating device according to claim 3, wherein the first partition comprises a plurality of through holes, the plurality of through holes penetrate the inner surface and the outer surface of the base body, and extend along the distributed at intervals in the circumferential direction. 6. The heating device according to claim 3, wherein the material of the base body comprises metal or ceramics. 7. The heating device according to claim 6, characterized in that, the heating device further comprises an insulating layer, the insulating layer comprises at least two insulating parts, and the at least two insulating parts are respectively arranged on the at least two On the outer surfaces of the heating regions, the at least two heating layers are respectively arranged on the outer surfaces of the at least two insulating parts. 8. The heating device according to claim 7, wherein a second partition is provided between every two insulating parts, and the second partition corresponds to the first partition. 9. The heating device according to claim 7, characterized in that, the heating device further comprises a protective layer, the protective layer comprises at least two protective parts, and the at least two protective parts cover the at least two protective parts respectively. on a heating layer. 10 . The heating device according to claim 9 , wherein a third partition is provided between every two protection parts, and the third partition corresponds to the first partition. 11 . 11. The heating device according to claim 3, characterized in that, the at least two heating layers are respectively disposed outside the at least two heating regions. 12. The heating device according to claim 11, characterized in that the heating device comprises at least two other heating layers, and the at least two other heating layers are respectively arranged inside the at least two heating regions . 13 . The heating device according to claim 3 , wherein the at least two heating regions are cylindrical and integrally connected. 14 . 14 . The heating device according to claim 1 , wherein the base body further comprises a fixing area disposed at an end of the base body, and the fixing area is integrally connected with the heating area. 15. The heating device according to claim 1, wherein the at least two heat generating layers comprise resistive film layers, and the at least two heat generating layers are in a spiral shape. 16. An aerosol generating device, characterized by comprising the heating device according to any one of claims 1-15.

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