CN214156227U

CN214156227U - Heating assembly

Info

Publication number: CN214156227U
Application number: CN202022047010.4U
Authority: CN
Inventors: 陈平
Original assignee: Shenzhen Huachengda Precision Industry Co Ltd
Current assignee: Shenzhen Huachengda Precision Industry Co Ltd
Priority date: 2020-09-17
Filing date: 2020-09-17
Publication date: 2021-09-10
Anticipated expiration: 2030-09-17

Abstract

The utility model relates to a heating assembly, including first ceramic base member, second ceramic base member and set up in first ceramic base member with heat-generating body between the second ceramic base member, first ceramic base member the heat-generating body the second ceramic base member adopts the technology of burning altogether to combine together. The utility model discloses a burn technology altogether, make first ceramic base member, second ceramic base member fuse together to inlay the heat-generating body between first ceramic base member, second ceramic base member, heating element generates heat evenly, and heating performance is stable, and the cohesion between heat-generating body and the ceramic base member improves greatly, and the heat-generating body is less through long-term back resistance and TCR performance parameter decay of using repeatedly, and the life-span is more lasting.

Description

Heating assembly

Technical Field

The utility model relates to a heating incombustible type atomizing field, more specifically say, relate to a heating element.

Background

The heating non-combustion type electronic cigarette, also called low-temperature baking smoking set, is an aerosol generating device which heats smoking materials in a non-combustion mode through low-temperature heating to form smokeable smoke. At present, different types of heating elements have been introduced at home and abroad for heating smoking materials by baking, such as sheet, tubular and rod-like heating elements.

The traditional heating assembly mostly adopts a thick film printing technology, one mode is to print resistance paste on an insulating substrate, then form a resistor by high-temperature sintering, and then cover a layer of insulating cover film outside the resistor; in another method, the resistor paste is printed on a ceramic substrate, and then a layer of ceramic is overlaid and sintered to form the resistor paste.

The defects of the above traditional mode are that the performance of the resistor circuit formed by the resistor paste printed by the thick film after high-temperature sintering is greatly attenuated after repeated use, the TCR curve and the numerical value of the resistor can be greatly changed, and therefore the heating performance of the heating assembly is changed, and the taste of a user is greatly changed.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model lies in, to the above-mentioned defect of prior art, provide a heating element, reach and generate heat evenly, generate heat stably, the life-span is more lasting, resistance and TCR performance parameter decay less purpose.

The utility model provides a technical scheme that its technical problem adopted is: a heating component is constructed, and comprises a first ceramic base body, a second ceramic base body and a heating body arranged between the first ceramic base body and the second ceramic base body, wherein the first ceramic base body is combined with the heating body through a co-firing process.

In some embodiments, the co-firing process is HTCC or LTCC.

In some embodiments, the heating element is formed by at least one of etching, punching, weaving, welding, stretching, laser cutting, and wire cutting.

In some embodiments, the heat-generating body is a metal heat-generating body.

In some embodiments, the first ceramic matrix and the second ceramic matrix are the same or different in structure.

In some embodiments, the first ceramic substrate and the second ceramic substrate are both insulating ceramics, and the composition material of the insulating ceramics includes at least one of alumina, zirconia, aluminum nitride, silicon carbide and silicon nitride.

In some embodiments, the heating assembly further comprises two electrode pins electrically connected to the heating element.

In some embodiments, a center line of the heat generating body coincides with a center line of the heating assembly.

In some embodiments, the heating element is in the form of a sheet having a V-shaped tip at one end.

In some embodiments, the heating element is tubular or cylindrical, and the cross section of the heating element is regular or irregular.

Implement the utility model discloses following beneficial effect has at least: the utility model has the advantages that the first ceramic base body and the second ceramic base body are welded together through the co-firing process, so that the heating element is embedded between the first ceramic base body and the second ceramic base body, the heating component generates heat uniformly, the heating performance is stable, the attenuation of the resistance and TCR performance parameters is small after the heating element is repeatedly used for a long time, and the service life is longer; the mode of co-firing molding can greatly improve the bonding force between the heating element and the ceramic substrate, effectively avoid the heating element virtual connection or floating caused by multiple plugging and unplugging of the heating assembly and optimize the atomization effect.

Drawings

The invention will be further explained with reference to the drawings and examples, wherein:

fig. 1 is a schematic perspective view of a heating assembly according to a first embodiment of the present invention;

FIG. 2 is an exploded view of the heating assembly of FIG. 1;

fig. 3 is a schematic perspective view of a heating assembly according to a second embodiment of the present invention;

fig. 4 is an exploded view of the heating assembly shown in fig. 3.

Detailed Description

In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Fig. 1-2 show a heating assembly 1 according to a first embodiment of the present invention, wherein the heating assembly 1 is adapted to heat a smoking material to form smokable smoke for a user to smoke by low temperature heating without combustion. The heating element 1 may be a sheet-shaped heating element in this embodiment and includes a first ceramic base 11, a second ceramic base 12, a heating element 13 disposed between the first ceramic base 11 and the second ceramic base 12, and two electrode pins 14 electrically connected to the heating element 13. When the heating component 1 is manufactured, the heating element 13 is firstly placed between the first ceramic substrate 11 and the second ceramic substrate 12, and then the first ceramic substrate 11 and the second ceramic substrate 12 are welded together at a high temperature through a co-firing process, so that the purpose of embedding the heating element 13 in the ceramic is achieved. The co-firing process can adopt HTCC (low temperature co-fired ceramic) or LTCC (high temperature co-fired ceramic) technology. The heating component 1 manufactured by the process has uniform heating and stable heating performance, and the resistance and TCR performance parameters of the heating element 13 are less attenuated after long-term repeated use, so that the service life is longer. The co-firing molding mode can greatly improve the bonding force between the heating element 13 and the ceramic substrate, effectively avoid the heating element 13 virtual connection or floating caused by multiple plugging and unplugging of the heating component 1, and optimize the atomization effect. The center line of the heating body 13 coincides with the center line of the heating unit 1 to make the heat generation more uniform.

The first ceramic base 11 and the second ceramic base 12 may have the same or different structures (composition materials, shapes, sizes, etc.). In this embodiment, the first ceramic body 11 and the second ceramic body 12 have the same structure, and each has a flat plate shape with a V-shaped tip 111 at one end. The angle between the two sharp edges of the V-shaped tip 111 may be 60-120 degrees. The first and second

ceramic substrates

11, 12 are insulating ceramics, which may be formed of thermally conductive ceramic powder, which may include alumina (Al)₂O₃) Zirconium oxide (ZrO), aluminum nitride (AlN), silicon carbide (SiC), silicon nitride (Si)₃N₄) At least one of (1).

The heating element 13 and the two electrode pins 14 are made of metal conductive materials. The two electrode pins 14 extend out of the first ceramic base 11 and the second ceramic base 12, and are respectively used as a positive electrode pin and a negative electrode pin for connecting a power supply (such as a battery). The heating element 13 is connected with a power supply through two electrode pins 14 and then is electrified to generate heat, thereby achieving the purpose of heating the fuming material. The heating element 13 can be formed by etching, punching, weaving, welding, drawing, laser cutting, wire cutting, or the like. The structural shape of the heat-generating body 13 is not limited, and it may have, for example, a net-like, filament-like, strip-like structural shape. In this embodiment, the heating element 13 is in the form of a rectangular sheet, and a plurality of rectangular meshes 130 may be distributed on the heating element, and the plurality of meshes 130 may be distributed in two vertical rows at equal intervals.

The heating element 13 and the electrode leads 14 may be integrally formed, and in this case, the heating element 13 and the electrode leads 14 may be made of the same material. Alternatively, the heating element 13 and the electrode leads 14 may be separately manufactured and then assembled, for example, after the heating element 13 and the electrode leads 14 are separately formed, one end of each of the electrode leads 14 is welded to the heating element 13, and in this case, the material of the heating element 13 and the material of each of the electrode leads 14 may be the same or different. Generally, the heating element 13 may be made of a material having a high resistivity and generating a large amount of heat, for example, a metal material having a conductive property and generating a large amount of heat after being energized, such as iron-chromium-aluminum, nickel-chromium, stainless steel, pure nickel, pure titanium, or nickel-iron. The electrode leads 14 may be made of a material having a low resistivity and generating less heat, such as Ag, Au, Cu, or the like.

Fig. 3 to 4 show a heating element 1 according to a second embodiment of the present invention, which is different from the first embodiment in that the heating element 1 has a circular tube shape and includes a circular tube-shaped first ceramic base 11, a circular tube-shaped second ceramic base 12, a circular tube-shaped heat generating body 13 embedded between the circular tube-shaped first ceramic base 11 and the circular tube-shaped second ceramic base 12, and two electrode pins 14 electrically connected to the circular tube-shaped heat generating body 13. It should be understood that the heating assembly 1 is not limited to be in a circular tube shape, but may also be in a tubular structure with an oval, rectangular or other regular or irregular cross-section; alternatively, the heating element 1 may be cylindrical, which includes a bottom wall and a cylindrical side wall surrounding the periphery of the bottom wall, and the cross section of the cylindrical heating element 1 may also be regular or irregular, such as circular, oval, rectangular, etc.

In the present embodiment, the round tube-shaped heat-generating body 13 may be formed by winding a sheet-shaped heat-generating body. The heating element 13 has an opening 131 on one side in the circumferential direction, and the electrode leads 14 are connected to both sides in the circumferential direction of the opening 131. The heating body 13 may also be distributed with a plurality of annular meshes 130 distributed equidistantly along the axial direction.

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

The above examples only represent the preferred embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the invention; it should be noted that, for those skilled in the art, the above technical features can be freely combined, and several modifications and improvements 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 changes and modifications that come within the meaning and range of equivalency of the claims are to be embraced within their scope.

Claims

1. The heating component is characterized by comprising a first ceramic base (11), a second ceramic base (12) and a heating body (13) arranged between the first ceramic base (11) and the second ceramic base (12), wherein the first ceramic base (11), the heating body (13) and the second ceramic base (12) are combined together by adopting a co-firing process.

2. The heating assembly of claim 1, wherein the co-firing process is HTCC or LTCC.

3. The heating assembly according to claim 1, wherein the heating body (13) is formed by at least one of etching, punching, weaving, welding, drawing, laser cutting, and wire cutting.

4. The heating assembly according to claim 1, wherein the heat generating body (13) is a metal heat generating body.

5. The heating assembly according to claim 1, wherein the first ceramic matrix (11), the second ceramic matrix (12) are structurally identical or different.

6. The heating assembly according to claim 1, wherein the first ceramic substrate (11) and the second ceramic substrate (12) are both insulating ceramics, and the constituent materials of the insulating ceramics comprise aluminum oxide, zirconium oxide, aluminum nitride, silicon carbide or silicon nitride.

7. The heating assembly according to claim 1, wherein the heating assembly (1) further comprises two electrode pins (14) electrically connected with the heating body (13).

8. The heating assembly according to claim 1, wherein a center line of the heat generating body (13) coincides with a center line of the heating assembly (1).

9. A heating element according to any of claims 1-8, characterized in that the heating element (1) is in the form of a plate with a V-shaped tip (111) at one end.

10. A heating assembly according to any of claims 1-8, characterized in that the heating assembly (1) is tubular or cylindrical, and the cross-section of the heating assembly (1) is regular or irregular.