CN212414736U - Three-dimensional heating element and heating non-combustion cigarette smoking set comprising same - Google Patents

Abstract

The utility model discloses a three-dimensional heating element, it includes: a substrate (1) of at least 3 pieces; a conductive track layer (2) on the substrate (1); a lead terminal (3) electrically connected to the conductive trace layer (2). It also comprises a heating non-combustion cigarette smoking set with the heating element. The heating element is arranged on the substrate (1) and a 3D three-dimensional circuit technology is adopted to print the conductive track layer (2). The utility model discloses a three-dimensional heating element has solved the heating dimension that single, local heating is inhomogeneous, the thermal response speed is slow, preheating time is long, the easy fragmentation scheduling problem that single formula heating element exists among the prior art. The heating element of the utility model can accurately set the resistance of the heating circuit, thereby realizing different baking effects; the heating cigarette core material has wide area, reduces residues and is easy to clean.

Description

Three-dimensional heating element and heating non-combustion cigarette smoking set comprising same

Technical Field

The utility model relates to an electric heating incombustible cigarette field, in particular to three-dimensional heating element reaches heating incombustible cigarette smoking set including it.

Background

The electric heating non-combustible cigarette heating element is used as a core component of the smoking set to heat cigarettes to generate smoke which is inhaled by consumers. Competitive products in the market of the field of heating non-burning cigarettes at present are mainly iQOS of Feimo International centre heating non-burning cigarettes, Glo of England tobacco, Ploom of Nissan tobacco, Lil of Korean tobacco. Wherein the product with the highest market share is Feimo international center-heated non-burning cigarette iQOS, which is also the most comprehensive in intellectual property layout. Wherein the heating element of the Feimei International iQOS smoking set product is a ceramic wafer with a center heating. At present, the ceramic heating sheet is widely applied to heating non-combustible cigarettes. The ceramic heating plate is generally made of a zirconia ceramic substrate, and a thick metal film (silver paste or alloy paste) is printed on the surface of the zirconia ceramic substrate, and is sintered and cured. The heating element is fixedly installed through the PEEK high-temperature special plastic base and then is in contact with the cut tobacco, and the heating element plays a role in heating the cut tobacco after being electrified. The method has the advantages of high reliability and stable input and output characteristics, but also has the problems of single heating dimension, nonuniform local heating, low thermal response speed, long preheating time, easy fragmentation and the like.

In order to solve the above problems, the utility model is provided.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problem, the utility model provides a be different from three-dimensional heating element of current piece that generates heat to solve heating element heating dimension singleness, cigarette that exist among the prior art and be heated inhomogeneous, the thermal response speed slow, easy fragment scheduling problem.

The utility model discloses the first aspect provides a three-dimensional heating element, it includes: a substrate 1 of at least 3 pieces; a conductive track layer 2 on the substrate 1; and lead terminals 3 electrically connected to the conductive trace layer 2.

Preferably, the conductive trace layer 2 is wrapped with a protective layer 4.

Preferably, one end of the heating element is conical, and the edge of the heating element is chamfered so as to be inserted into the substance to be heated; the other end of the heating element is provided with a bump 6 outside the substrate 1 so as to be fixed with a heating device.

Preferably, a plurality of the substrates 1 intersect, and the substrates 1 extend radially outwards along the intersection, and the angles between two adjacent substrates 1 are consistent.

Preferably, the heating element has a tray body 5 on a side close to the bump 6 to fix the plurality of substrates 1.

Preferably, the substrate 1 is an electrically insulating substrate, the material of the substrate 1 is rigid, and the material of the substrate 1 is selected from one or more of glass, ceramic, anodized metal, coated metal and polyimide. The ceramic may comprise mica, alumina or zirconia. Other suitable materials may also be used.

Preferably, the anodized metal refers to a metal having an oxide film layer and subjected to surface anodization, and includes anodized aluminum, anodized titanium, anodized magnesium or anodized zinc.

Preferably, the coating metal refers to a metal with a protective coating, including nickel zinc plating, titanium zinc plating, silver gold plating, or copper nickel plating.

Preferably, the material of the conductive trace layer 2 is selected from one or more of silver, platinum, copper, nickel, tungsten, and palladium.

Preferably, the conductive track layer 2 is arranged on a single side and/or multiple sides of the substrate 1 by using 3D stereoscopic circuit technology, preferably 3D printing technology or laser printing technology.

Preferably, the conductive trace layer 2 is plated with a protective layer 4 to ensure the stability of the heating element at high temperature (>800 ℃), and the material of the protective layer 4 is selected from protective slurry of Heley.

The utility model discloses the second aspect provides one kind and includes the utility model discloses the first aspect heating element's heating does not burn cigarette smoking set.

Compared with the prior art, the utility model discloses following beneficial result has:

1. the utility model discloses a heating element has strengthened rigidity and intensity to present flyover crossing structure by original monolithic structure, has reduced the possibility of original pottery piece easy fragment that generates heat, and the structure is firm, and the spoilage is low.

2. The utility model discloses a heating element improves the heating element of monolithic substrate to the fly-over heating element for containing 3 substrates, then adopts 3D three-dimensional circuit technique to arrange the unilateral and/or the multiple flank of substrate 1 have increased heating area, have further promoted the rate of heating of cigarette, have shortened the preheating time of cigarette in the present electric heating incombustible cigarette product.

3. The utility model discloses a heating element adopts three-dimensional spatial structure, and heat energy is put in and is the symmetric distribution, and the heat radiation scope is wider, realizes the even heating in limited space, really realizes the even heating cigarette, has solved single, the inhomogeneous problem of local heating of current monolithic heating element heating dimension.

4. The heating element of the utility model can accurately set the resistance of the heating circuit, thereby realizing different baking effects; the heating cigarette core material has wide area, reduces residues and is easy to clean.

Drawings

Fig. 1 a schematic view of a three-dimensional heating element structure according to embodiment 1 of the present invention

Fig. 2 a schematic view of a three-dimensional heating element structure according to embodiment 2 of the present invention

Fig. 3 a schematic view of a three-dimensional heating element structure according to embodiment 2 of the present invention

The names of the reference numerals in the description of the drawings are: 1-a substrate; 2-a conductive trace layer; 3-a lead terminal; 4-a protective layer; 5-supporting the tray body; 6-bump.

Detailed Description

As described above, the present invention provides a three-dimensional heating element. The cigarette is inserted into the three-dimensional heating element, the conductive track layer is connected with the positive electrode and the negative electrode of the power supply through the lead ends, the temperature of the heating element rises, the cigarette is heated to generate smoke, and the smoke is sucked by a smoker through the airflow channel.

The preferred embodiments of the present invention will be described below with reference to the accompanying drawings.

The first embodiment is as follows:

referring to fig. 1, a three-dimensional heating element includes: 4 substrates 1; a conductive track layer 2 on the substrate 1; and lead terminals 3 electrically connected to the conductive trace layer 2. The conductive track layer 2 is wrapped by a protective layer 4. One end of the heating element is conical, and the edge of the heating element is chamfered so as to be inserted into the tobacco section of the cigarette; the other end of the heating element is provided with a lug 6 outside the substrate 1 so as to be fixed with a cigarette smoking set which is not combusted by heating. One side of the heating element, which is close to the bump 6, is provided with a support disc body 5 so as to fix a plurality of substrates 1. 4 pieces of the substrates 1 intersect, the substrates 1 radially extend outwards along the intersection, and the angle between every two adjacent substrates 1 is 90 degrees.

In this example, the 4 substrates 1 are made of alumina ceramic substrates.

In this embodiment, 4 three-dimensional cross ceramic heating sheets are prepared by a die-free direct writing molding technology.

In this embodiment, the 4 heating sheets have 8 faces in total, and the heat conducting trace layer 2 can be printed on 4 or more faces of the substrate 1, and the specific steps are to design a circuit image on a ceramic substrate with a 3D structure, and then to manufacture the substrate by using a 3D three-dimensional circuit technology (i.e., a laser direct structuring circuit technology).

The conductive track layer 2 is made of tungsten, the conductive track layer 2 is plated with a protective layer 4 to ensure the stability of the heating element at high temperature (>800 ℃), and the protective layer 4 is made of protective slurry of Heley.

The total 8 faces of 4 pieces of heating plate in this embodiment, with monolithic structure photo, the utility model discloses a three-dimensional heating element structure has strengthened rigidity and intensity, and the structure is more firm, can effectively reduce the spoilage. Meanwhile, the heating surface of the core material in the cigarette is increased, the heating speed is further improved, the preheating time is shortened, and the full heating of the core material of the cigarette is realized. The residue is reduced, and the cleaning is easy.

Example two:

referring to fig. 2 and 3, the present invention provides a three-dimensional heating element, which includes: 6 substrates 1; a conductive track layer 2 on the substrate 1; and lead terminals 3 electrically connected to the conductive trace layer 2. The conductive track layer 2 is wrapped by a protective layer 4. One end of the heating element is conical, and the edge of the heating element is chamfered so as to be inserted into the tobacco section of the cigarette; the other end of the heating element is provided with a lug 6 outside the substrate 1 so as to be fixed with a cigarette smoking set which is not combusted by heating. One side of the heating element, which is close to the bump 6, is provided with a support disc body 5 so as to fix a plurality of substrates 1. 6 pieces of the substrates 1 intersect, the substrates 1 radially extend outwards along the intersection, and the angle between every two adjacent substrates 1 is 60 degrees.

In this example, the 6 substrates 1 are made of alumina ceramic substrates.

In this embodiment, 6 three-dimensional cross ceramic heating sheets are prepared by a die-free direct writing molding technology.

In this embodiment, the 6 heating sheets of the substrate 1 have 12 faces in total, and the heat conducting trace layer 2 can be printed on 6 or more faces, specifically including steps of designing a circuit image on a ceramic substrate and then manufacturing the circuit image by using a 3D three-dimensional circuit technology (i.e., a laser direct structuring circuit technology).

The conductive track layer 2 is made of palladium, the protective layer 4 is plated on the conductive track layer 2 to ensure the stability of the heating element at high temperature (>800 ℃), and the protective layer 4 is made of protective slurry of Heley.

The total 12 faces of 6 pieces of heating plate in this embodiment, with monolithic structure photo, the utility model discloses a three-dimensional heating element structure has strengthened rigidity and intensity, and the structure is more firm, can effectively reduce the spoilage. Meanwhile, the heating surface of the core material in the cigarette is increased, the heating speed is further improved, the preheating time is shortened, and the full heating of the core material of the cigarette is realized. The residue is reduced, and the cleaning is easy.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention. For those skilled in the art, any modification, equivalent replacement, and improvement made according to the technical solutions or technical features disclosed in the present invention should fall within the protection scope of the present invention without creative efforts.

Claims (10)

1. A three-dimensional heating element is characterized by comprising:

a substrate (1) of at least 3 pieces;

a conductive track layer (2) on the substrate (1);

a lead terminal (3) electrically connected to the conductive trace layer (2).

2. A three-dimensional heating element according to claim 1, wherein a plurality of said substrates (1) intersect, and said substrates (1) extend radially outwardly along the intersection.

3. A body heating element according to claim 1, characterised in that the layer of conductive tracks (2) is surrounded by a protective layer (4).

4. The solid heating element according to claim 1, wherein one end of the heating element is tapered, and the edge of the heating element is chamfered so as to be inserted into the substance to be heated; and a bump (6) is arranged at the other end of the heating element and outside the substrate (1).

5. A three-dimensional heating element according to claim 4, wherein the heating element has a tray body (5) on the side close to the protrusion (6) for fixing a plurality of substrates (1).

6. The three-dimensional heating element according to claim 1, wherein the substrate (1) is rigid, and the material of the substrate (1) is selected from one or more of glass, ceramic, anodized metal, coated metal and polyimide.

7. A three-dimensional heating element according to claim 1, characterised in that the material of the conductive track layer (2) is selected from one or more of silver, platinum, copper, nickel, tungsten and palladium.

8. The three-dimensional heating element according to claim 1, wherein the conductive track layer (2) is printed on one side and/or multiple sides of the substrate (1) using 3D three-dimensional circuit technology.

9. A three-dimensional heating element according to claim 1, characterised in that the conductive track layer (2) is coated with a protective layer (4), the material of the protective layer (4) being selected from protective pastes of heili.

10. A heat non-combustible cigarette smoking article comprising the heat generating element according to claim 1.

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