KR20230081543A - Heating device of aerosol generating apparatus - Google Patents

Abstract

The present invention relates to a heating device for an aerosol generating device that can simplify a manufacturing process by printing and placing a printing hot wire on a support. The heating device of the aerosol generating device of the present invention includes a support, and a printed hot wire pattern part placed on one side of the support.

Description

Heating device of aerosol generating device {HEATING DEVICE OF AEROSOL GENERATING APPARATUS}

The present invention relates to a heating device of an aerosol generating device, and more particularly, to a heating device of an aerosol generating device capable of simplifying a manufacturing process by being printed and placed on a support with a printing hot wire.

Aerosols are small liquid or solid particles suspended in the air and usually have a size of 0.001 to 1.0 μm. In particular, there are cases where a person inhales aerosols derived from various types of cigarette-type aerosol-generating articles. For example, according to the demand of consumers who prefer cigarette-type conventional cigarettes, an electronic cigarette having a filter part and a cigarette part shape of a conventional cigarette has also been proposed. When vaporized by a heater, the user inhales through a filter unit having a configuration equivalent to that of a conventional cigarette.

1 is a view for explaining an example of an aerosol generating device according to the prior art. Referring to FIG. 1 , the aerosol generating device 100 has a cavity 20 into which a cigarette-type aerosol-generating article 10 is inserted, and the cigarette-type aerosol-generating article 10 inserted into the aerosol generating device 100 is In order to generate an aerosol by heating, for example, a heater 30 in the form of a pipe is provided on the outer circumference of the cavity 20. In addition, the aerosol generating device 100 includes a battery 40 for supplying power to the heater 30, and a controller 50 configured to control power supplied from the battery 40 to the heater 30. . In the prior art described above, power is supplied from the battery 40 to the heater 30 under the control of the control unit 50, and the cigarette-type aerosol-generating article 10 is heated by the heat generated by the heater 30, thereby producing a cigarette-type aerosol. An aerosol is generated from an aerosol-generating substrate within the generating article 10 .

A conventional heater includes a metal heating wire disposed on an outer surface of a heat-conductive heater pipe. Since the process of winding the metal heating wire around the heater pipe is essentially required, defects in the winding process along with the cost of the manufacturing process frequently occur.

An object of the present invention is to provide a heating device of an aerosol generating device capable of simplifying the manufacturing process by being printed and placed on a support with a printing hot wire.

The heating device of the aerosol generating device of the present invention includes a support and a printed hot wire pattern part disposed on one side of the support.

In addition, the support is a pipe made of SUS material, a metal pipe having high thermal conductivity, or a polyimide film, and the printed hot wire pattern part is preferably printed on the surface of the pipe or the surface of the polymeric organic compound film.

In addition, the support is a porous material block, and the printed hot wire pattern unit is preferably printed and disposed on at least one side surface of the porous ceramic material block.

In addition, the printing hot wire pattern unit uses a heat-generating raw material, which is a metal grain or metal powder, made of at least one selected from the group consisting of Al, Ni, Cr, Ti, Cu, Zr, Fe, Si, Mo, Co, graphene, and kanthal. It is preferable to include

In addition, the printed hot wire pattern unit includes at least one linear or curved pattern, the thickness of the pattern is in the range of 0.08 mm to 0.16 mm, the width of the pattern is in the range of 0.2 mm to 0.4 mm, and the resistance of the pattern is in the range of 0.2 mm to 0.4 mm. It is preferable to fall within the range of 0.7 to 1.2 Ω per unit length.

In addition, the printed hot wire pattern unit preferably has a zigzag shape, a parallel shape or a woven shape.

The present invention has the effect of simplifying the manufacturing process and reducing the overall volume and size by being printed and disposed on the support with a printing hot wire.

1 is a view for explaining an example of an aerosol generating device according to the prior art.
2 is examples of printed hot wire pattern parts of the heating device.

Hereinafter, the present invention will be described in detail through examples and drawings. However, it should be understood that this is not intended to limit the present invention to the specific embodiments, and includes various modifications, equivalents, and/or alternatives of the embodiments of the present invention. In connection with the description of the drawings, like reference numerals may be used for like elements.

In this document, expressions such as "has", "may have", "includes", or "may include" refer to the presence of a corresponding feature (eg, numerical value, function, operation, or component such as a part). , which does not preclude the existence of additional features.

In this document, expressions such as "A or B", "at least one of A and/and B", or "one or more of A or/and B" may include all possible combinations of the items listed together. . For example, "A or B", "at least one of A and B", or "at least one of A or B" includes (1) at least one A, (2) at least one B, Or (3) may refer to all cases including at least one A and at least one B.

Expressions such as "first", "second", "first", or "second" as used herein may modify various elements, in any order and/or importance, and may refer to one element as another. It is used to distinguish from components, but does not limit the components. For example, a first user device and a second user device may represent different user devices regardless of order or importance. For example, without departing from the scope of rights described in this document, a first element may be called a second element, and similarly, the second element may also be renamed to the first element.

A component (e.g., a first component) is "(operatively or communicatively) coupled with/to" another component (e.g., a second component); When referred to as "connected to", it should be understood that the certain component may be directly connected to the other component or connected through another component (eg, a third component). On the other hand, when an element (eg, a first element) is referred to as being “directly connected” or “directly connected” to another element (eg, a second element), the element and the above It may be understood that other components (eg, third components) do not exist between the other components.

Terms used in this document are only used to describe a specific embodiment, and may not be intended to limit the scope of other embodiments. Singular expressions may include plural expressions unless the context clearly dictates otherwise. Terms used herein, including technical or scientific terms, may have the same meaning as commonly understood by a person of ordinary skill in the technical field described in this document. Among the terms used in this document, the terms defined in general dictionaries may be interpreted as having the same or similar meaning to the meaning in the context of the related art, and unless explicitly defined in this document, in an ideal or excessively formal meaning. not interpreted In some cases, even terms defined in this document cannot be interpreted to exclude the embodiments of this document.

In the present invention, the aerosol-forming article includes at least one of a filter unit having a series of laminated structures, a cooling unit and an aerosol-forming base layer (eg, cut wax, fragrance, nicotine, VG (vegetable glycerin), PG (propylene glycol), etc.) It is a mixed material containing one or more). Aerosol-forming articles include conventional e-cigarettes, filters, and the like.

A first embodiment of the aerosol generating device according to the present invention includes a case with an open upper side and a tubular (cylindrical, square tubular) insertion space formed so that an aerosol-forming article can be inserted and separated, and a hollow case mounted in the insertion space of the case. It is configured to include a first heating device in which a heating space is formed. The first heating device includes a first support in the form of a hollow heater pipe, and a first printed hot wire pattern part printed and disposed on an inner or outer surface of the first support. The case has an air flow path that communicates the bottom or side surfaces of the insertion space and the heating space with the external space. The aerosol-forming article is inserted into or separated from the heating space and the insertion space.

The first support may be a pipe made of SUS, a metal pipe having high thermal conductivity, or a pipe formed by winding a polymer organic compound (eg, polyimide (PI)) film.

The first printed hot wire pattern unit is directly printed on a surface of a pipe made of SUS, a surface of a metal pipe having high thermal conductivity, or a surface of a polymer organic compound. By this printing process, manufacturing of the first heating device is simplified while overall volume and size are reduced.

When power is applied to the first printing hot wire pattern unit, heat is generated, and thermal energy is transferred to the first support to perform a heating operation for the heating space.

In addition, in the present invention, the liquid cartridge accommodates a liquid or gel-type aerosol-forming substrate (eg, perfume, nicotine, VG (vegetable glycerin), PG (propylene glycol), medicine, etc.) .

A second embodiment of an aerosol generating device according to the present invention includes a case in which a liquid cartridge is mounted, and a second heating device receiving liquid from the liquid cartridge and heating the liquid to generate an aerosol in the case. The second heating device includes a second support directly or indirectly in contact with the liquid phase, and a second printed hot wire pattern part printed and disposed on the second support. The case is provided with an airflow path that communicates the second heating device with the external space.

The second support is made of a porous material, for example, a porous ceramic block, so that the liquid phase can be transported by capillarity. The first side of the second support is a liquid supply side to which liquid is supplied, and the second printed hot wire pattern unit is printed and disposed on at least one or more sides other than the first side of the second support. By this printing process, the manufacturing of the second heating device is simplified, while the overall volume and size are reduced.

The side on which the second printing hot wire pattern unit is disposed corresponds to a non-screen, and when power is applied to the second printing hot wire pattern unit, heat is generated and the liquid absorbed in the second support is vaporized and discharged along the airflow path in the form of an aerosol, The liquid phase supplied to the liquid phase supply surface is transferred to the no-phase surface.

The first and second printing hot wire pattern units are collectively referred to as printing hot wire pattern units, and the first and second supports are collectively referred to as supports.

The printing hot wire pattern unit includes a heating source material that is a metal grain or metal powder made of at least one selected from the group consisting of Al, Ni, Cr, Ti, Cu, Zr, Fe, Si, Mo, Co, graphene, and kanthal. . The printing hot wire pattern part is formed by printing the printing solution containing the above-described exothermic raw material on the surface of the support. An organic material may be additionally included in the solvent (eg, organic solvent) in the printing solution. Organic solvents are dimethylformamide (DMF), dimethyl sulfoxide (DMSO), isopropyl alcohol (IPA), tetrahydrofuran (THF), chloroform (CF), chlorobenzene (CB), trichloroethylene (TCE) , It includes at least one selected from the group consisting of ethanol, methanol, acetone, toluene, acetic acid, and nitric acid. Organic materials are polyvinyl alcohol (PVA), polyvinyl acetate (PVAc), polyvinylpyrrolidone (PVP), polymethyl methacrylate (PMMA), polyethylene oxide (PEO), polyvinyl carbazole (PVK), polystyrene (PS) and at least one selected from the group consisting of polyvinylidene fluoride (PVDF).

범위에 속하며, 패턴 자체는 이러한 고온에서 Crack 및 끊어짐이 없다. 이들 프린팅 열선 패턴부의 패턴의 저항은 단위 길이당(예를 들면, m) 0.7~1.2Ω의 범위에 속한다. The printing hot wire pattern unit includes one or more linear or curved patterns. The thickness of these patterns is in the range of 0.08 mm to 0.16 mm, and the width of the patterns is in the range of 0.2 mm to 0.4 mm. In addition, the heating temperature of the printing hot wire pattern part is 150 to 600

range, and the pattern itself does not crack or break at this high temperature. The resistance of the pattern of these printed hot wire pattern parts is in the range of 0.7 to 1.2 Ω per unit length (for example, m).

2 is examples of printed hot wire pattern parts of the heating device.

In (a) of FIG. 2 , linear printing hot wire patterns are connected in series, and the printing hot wire pattern portion has a zigzag shape.

In (b) of FIG. 2, a plurality of first linear printing hot wire patterns are arranged in parallel, and the linear printing hot wire patterns are vertically arranged between the parallel linear printing hot wire patterns, so that the printing hot wire pattern part has a parallel shape. .

In (c) of FIG. 2 , the plurality of linear printed hot wire patterns are arranged in a weave or fabric structure, so that the printed hot wire pattern part has a weave shape.

As described above, the present invention is not limited to the specific preferred embodiments described above, and anyone having ordinary knowledge in the technical field to which the present invention pertains can do various things without departing from the gist of the present invention claimed in the claims. Of course, variations are possible, and such variations are within the scope of the claims.

Claims (6)

a support;
A heating device of an aerosol generating device comprising a printed hot wire pattern part disposed on one side of the support. According to claim 1,
The support is a SUS pipe, a metal pipe with high thermal conductivity, or a polyimide film,
The heating device of the aerosol generating device, characterized in that the printed hot wire pattern part is printed on the surface of the pipe or the surface of the polymeric organic compound film. According to claim 1,
The support is a block of porous material,
The heating device of the aerosol generating device, characterized in that the printing heat wire pattern unit is printed and disposed on at least one side of the porous ceramic material block. According to any one of claims 1 to 3,
The printing hot wire pattern unit includes a heat generating raw material that is a metal grain or metal powder consisting of at least one selected from the group consisting of Al, Ni, Cr, Ti, Cu, Zr, Fe, Si, Mo, Co, graphene, and kanthal. Heating device of an aerosol generating device, characterized in that. According to any one of claims 1 to 3,
The printed hot wire pattern unit includes at least one linear or curved pattern, the thickness of the pattern is in the range of 0.08 mm to 0.16 mm, the width of the pattern is in the range of 0.2 mm to 0.4 mm, and the resistance of the pattern is a unit. A heating device of an aerosol generating device, characterized in that it belongs to the range of 0.7 ~ 1.2Ω per length. According to any one of claims 1 to 3,
The heating device of the aerosol generating device, characterized in that the printing hot wire pattern part has a zigzag form, a parallel form or a weave form.

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