WO2020015738A1 - Single-piece soaking heating film used for heating pipe for cigarette baking - Google Patents

Abstract

A single-piece soaking heating film used for a heating pipe for cigarette baking, the heating film comprising a high-temperature-resistant plastic film (1), a wiring terminal (2), a heating wire piece (3), a metal foil (4) and a lead (5), wherein the heating wire piece (3) is formed by means of bending an electric resistance wire in a plane; the high-temperature-resistant plastic film (1) comprises a first end (101) and a second end (102) arranged oppositely; the metal foil (4) is attached to a first surface, close to the first end (101), of the high-temperature-resistant plastic film (1); the heating wire piece (3) that has an area corresponding to the area of the metal foil (4) is attached to one side, away from the first end (101), of the metal foil (4); two ends of the electric resistance wire of the heating wire piece (3) are respectively electrically connected to the wiring terminal (2); and the wiring terminal (2) is electrically connected to the lead (5). The soaking heating film can effectively alleviate the problem of uneven heating of cigarettes.

Description

Monolithic heat-generating film for cigarette baking heating tube Technical field

The present application belongs to the technical field of cigarette smoking auxiliary appliances, and in particular, relates to a single-piece type soaking heating film for a cigarette baking heating pipe.

Background technique

With the continuous improvement of people's living standards, the harm of direct smoking cigarettes has been widely known. At present, there are heated cigarettes on the market, and then a cigarette smoking aid is provided on the mouthpiece. Since this cigarette smoking aid does not burn cigarettes, it can greatly reduce the harm of fine particles caused by burning cigarettes. Such cigarette smoking aids generally have a heating tube for heating and baking cigarettes. The heating element of the heating tube has a heating film. The heating film of the prior art is based on a high-temperature resistant plastic film, which includes printed or pasted on the substrate. Conductive material. The conductive material generates heat after being energized, and is used to heat the heated object. However, since the conductive material cannot cover the entire base material, and the thermal conductivity of the base material is relatively low, the heat of the heating pipe will be uneven. Therefore, when the cigarette is heated and baked with the heating film, it is easy to exceed the ignition point of the tobacco paper because the local heating temperature is not easy to control.

Summary of the invention

The object of the invention is to provide a monolithic soaking heating film for a cigarette baking heating tube, adding a special heat-dissipating structure metal foil to the heating film, and integrating the heating film and the soaking structure as a whole. Effectively alleviates the problem of uneven heating.

The embodiment of the present application provides a single-piece soaking heating film for a cigarette baking heating pipe, which includes a high-temperature-resistant plastic film, a connection terminal, a heating wire sheet, a metal foil, and a wire. The heating wire sheet is formed by bending resistance wires in a plane, and the high-temperature resistant plastic film includes a first end and a second end opposite to each other; the high-temperature resistant plastic film is on a first surface near the first end. The metal foil is pasted, and the side of the metal foil remote from the first end is pasted with the heating wire sheet corresponding to the area of the metal foil; wherein two of the resistance wires of the heating wire sheet The terminals are respectively electrically connected to one of the connection terminals, and the connection terminals are electrically connected to the wires.

In some embodiments, the high temperature resistant plastic film is rectangular, and the first end and the second end are disposed along a length direction of the high temperature resistant plastic film.

In some embodiments, the width of the heating wire sheet and the metal foil in the length direction of the high-temperature-resistant plastic film is the same as the circumference of the cigarette column.

In some embodiments, there is a gap between the heating wire sheet and the metal foil that is perpendicular to the length direction of the high temperature resistant plastic film. After the high temperature resistant plastic film is folded along the gap, The outline overlaps the outline of the metal foil.

In some embodiments, the metal foil has four pieces, and the metal foil is evenly arranged along the width direction of the high-temperature-resistant plastic film, and the corresponding heating wire piece also has four pieces.

In some embodiments, a gap is provided between two adjacent metal foils.

In some embodiments, the material of the high-temperature-resistant plastic film is polyimide, and the material of the metal foil is copper.

Since the one-piece type soaking heating film for a cigarette baking heating tube provided in the embodiment of the present application is provided with a metal foil on one side of the heating wire, a special soaking section is added to the heating film, and heat is generated. Integrated with the soaking structure, it can effectively alleviate the problem of uneven heating. In addition, since the heat generation and the heat equalization structure are integrated on one component at the same time, the assembling process on the heating pipe is reduced, and the difficulty of assembly is greatly reduced.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to explain the technical solutions in the embodiments of the present application more clearly, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application. Those of ordinary skill in the art can obtain other drawings according to the drawings without paying creative labor.

FIG. 1 is a schematic structural diagram of a monolithic soaking heating film for a cigarette baking heating tube in an embodiment of the present application.

detailed description

In the following, the technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by a person of ordinary skill in the art without creative labor shall fall within the protection scope of this application.

As shown in FIG. 1, a single-piece heat-dissipating film for a cigarette heating tube disclosed in an embodiment of the present application includes a high-temperature-resistant plastic film 1, a terminal 2, a heating wire 3, and a metal foil 4. And wire 5. In this embodiment, the high-temperature-resistant plastic film 1 has a rectangular shape, so that the cylindrical surface of the cigarette can better fit. It can be understood that, in other embodiments, the high-temperature resistant plastic film 1 may also have other shapes, which is not limited herein.

The heating wire piece 3 is formed by bending a resistance wire in a plane, and the high-temperature resistant plastic film 1 includes a first end 101 and a second end 102 opposite to each other along the length direction. The first surface of the high temperature resistant plastic film 1 near the first end 101 is covered with the metal foil 4, and the side of the metal foil 4 far from the first end 101 is covered with the area of the metal foil 4. The two ends of the corresponding heating wire piece 3 and the resistance wire of the heating wire piece 3 are respectively electrically connected to one of the connection terminals 2, and the connection terminal 2 is electrically connected to the lead wire 5.

In some embodiments, the metal foil 4 has four pieces, and the metal foil 4 is evenly arranged along the width direction of the high temperature resistant plastic film 1, and the corresponding heating wire piece 3 also has four pieces. In this embodiment, since the plurality of heating filaments 3 and the corresponding plurality of metal foils 4 are used, not only the heat-distributing effect can be improved, but also the cigarette can be heated in sections, so that the cigarette can be baked more fully.

In some embodiments, a gap is left between two adjacent metal foils 4 to prevent direct heat transfer between the metal foils 4. The width of the heating wire sheet 3 and the metal foil 4 in the length direction of the high temperature resistant plastic film 1 are respectively the same as the circumference of the cigarette smoke column, and there is a length direction between the heating wire sheet 3 and the metal foil 4 and the high temperature resistant plastic film 1. In a vertical gap, after the high temperature resistant plastic film 1 is folded along the gap, the outline of the heating wire sheet 3 and the outline of the metal foil 4 overlap.

In some embodiments, the material of the high-temperature-resistant plastic film 1 is polyimide with high heat resistance and insulation, and the material of the metal foil 4 is copper with high thermal conductivity.

When installing the single-piece soaking heat-generating film in the embodiment of the present application on a cigarette baking heating tube, first attach the second surface of the first end 101 of the high-temperature-resistant plastic film 1 to the heating tube, and then keep the high-temperature resistance The second surface of the plastic film 1 is wound around the heating tube. During the winding process, the heating wire piece 3 is ensured to be superposed on the metal foil 4 in a more complete manner. Wherein, the first surface and the second surface are disposed opposite to each other.

The embodiments of the present application have been described in detail above. Specific examples are used in this document to explain the principles and embodiments of the present application. The descriptions of the above embodiments are only used to help understand the methods and core ideas of the present application. Persons of ordinary skill in the art may change the specific embodiments and application scopes according to the idea of the present application. In summary, the content of this description should not be construed as a limitation on the present application.

Claims (7)

A single-piece soaking heat-generating film for a cigarette baking heating pipe includes a high-temperature-resistant plastic film, a terminal, a heating wire sheet, a metal foil, and a wire; characterized in that the heating wire sheet is composed of a resistance wire in Bended in a plane, the high-temperature resistant plastic film includes a first end and a second end opposite to each other; the first surface of the high-temperature resistant plastic film near the first end is covered with the metal foil, A side of the metal foil remote from the first end is covered with the heating wire sheet corresponding to the area of the metal foil; wherein two ends of a resistance wire of the heating wire sheet are electrically connected to one of the heating wires, respectively. A terminal, which is electrically connected to the lead. The monolithic heat-dissipating film according to claim 1, wherein the high-temperature-resistant plastic film is rectangular, and the first end and the second end are along a length direction of the high-temperature-resistant plastic film. Settings. The single-piece heat-dissipating heat-generating film according to claim 2, wherein the width of the heat-generating wire sheet and the metal foil in the longitudinal direction of the high-temperature-resistant plastic film is the same as the circumference of the cigarette smoke column. The monolithic heat-generating heating film according to claim 3, wherein a gap perpendicular to a lengthwise direction of the high-temperature-resistant plastic film is provided between the heating wire sheet and the metal foil, and the high-temperature-resistant plastic After the film is folded along the gap, the outline of the heating wire piece overlaps the outline of the metal foil. The one-piece heat-dissipating heat-generating film according to claim 2, wherein the metal foil has four pieces, and is arranged uniformly along the width direction of the high-temperature-resistant plastic film, and the corresponding heat-generating wire pieces also have four pieces. . The single-piece heat-dissipating heat-generating film according to claim 5, wherein a gap is provided between two adjacent metal foils. The monolithic soaking and heating film according to any one of claims 1-6, wherein a material of the high-temperature-resistant plastic film is polyimide, and a material of the metal foil is copper.

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