CN211379637U

CN211379637U - Heating element and electronic cigarette

Info

Publication number: CN211379637U
Application number: CN201920615623.8U
Authority: CN
Inventors: 伍鹏飞
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-04-30
Filing date: 2019-04-30
Publication date: 2020-09-01
Anticipated expiration: 2029-04-30

Abstract

The utility model relates to a heat-generating body and electron cigarette. A heat-generating body, comprising: the metal fiber felt is provided with a porous structure and is used for atomizing target liquid after heating. Compared with the traditional ceramic core heating body, the heating body comprises a metal fiber felt with a porous structure, can be fully contacted with the target liquid to be atomized, can be fully contacted with the tobacco tar of the electronic cigarette when the target liquid is the tobacco tar of the electronic cigarette, and has higher atomization efficiency; and its hole is the through-hole, compares in traditional heat-generating body, and the tobacco tar of heating electron cigarette carries out the in-process that atomizes to it, and the phenomenon in stifled hole can be avoided burning and forming to the tobacco tar of electron cigarette futilely to avoid the tobacco tar runner not smooth, user experience is better.

Description

Heating element and electronic cigarette

Technical Field

The utility model relates to an electron cigarette technical field especially relates to a heat-generating body and electron cigarette.

Background

A ceramic core atomizer is commonly used in a traditional electronic cigarette, the ceramic core atomization main body is a sintered ceramic material with micropores (the pore size is about 20-100 micrometers), and a heating body of the electronic cigarette is formed by adopting a thick film printing process on the surface of the ceramic material or embedding a metal heating wire and a metal sheet on the shallow surface of the ceramic material. However, the heating elements formed by the metal heating wires and the metal sheets are all solid heating elements, after the heating elements are driven by current, the inside of the heating elements is not fully contacted with the tobacco tar, and the metal heating wires or the metal sheets on the outer surfaces which are not bonded with the ceramic materials are not contacted with the tobacco tar and still generate heat, so that more useless work is generated, and the atomization efficiency is low.

SUMMERY OF THE UTILITY MODEL

In view of this, it is necessary to provide a heat-generating body and an electronic cigarette in order to solve the problem of low atomization efficiency of the conventional heat-generating body.

A heat-generating body, comprising:

the metal fiber felt is provided with a porous structure and is used for atomizing target liquid after heating.

In one embodiment, the holes in the metal fiber mat are through holes.

In one embodiment, the porosity of the metal fiber mat ranges from 50% to 90%.

In one embodiment, the metal fiber mat is made of a plurality of electrically conductive metal fibers.

In one embodiment, the conductive metal fibers comprise at least one of stainless steel metal fibers, iron-chromium-aluminum metal fibers, titanium-nickel metal fibers, and hastelloy fibers.

In one embodiment, the plurality of conductive metal fibers are chopped, laid, laminated and sintered at a high temperature to form the metal fiber mat.

In one embodiment, the metal fiber mat has a diameter in the range of 2 microns to 50 microns.

In one embodiment, the metal fiber mat has a thickness in a range of 0.1 mm to 1 mm.

In one embodiment, the diameter of the holes in the metal fiber mat ranges from 3 microns to 100 microns.

In one embodiment, an electronic cigarette comprises an electronic cigarette body and further comprises the heating body, wherein the heating body is used for atomizing tobacco tar of the electronic cigarette.

Above-mentioned heat-generating body for the back atomizes target liquid generates heat, for traditional ceramic core heat-generating body, its including the metal fiber felt that has porous structure, can with treat the abundant contact of atomizing target liquid, when target liquid is the tobacco tar of electron cigarette, its can be with the abundant contact of tobacco tar of electron cigarette, and atomization efficiency is higher.

Drawings

FIG. 1 is a schematic representation of a metal fiber mat under high magnification under a microscope in one embodiment.

FIG. 2 is a schematic representation of a metal fiber mat under microscope low magnification in one embodiment.

Fig. 3 is a physical diagram of a metal fiber mat in an embodiment.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

In the description of the present application, it is to be understood that the terms "center", "lateral", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner" and "outer" etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application. Further, when an element is referred to as being "formed on" another element, it can be directly connected to the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present.

In one embodiment, a heating element is used for atomizing a target liquid after heating. In this embodiment, the heating element is applied to the electronic cigarette, and is used for atomizing the tobacco tar of the electronic cigarette. In other embodiments, the heating element may also be applied to atomize other target liquids, including but not limited to nicotine-containing electronic cigarette tar, nicotine-free electronic cigarette tar, daily aroma type atomized liquid, vehicle aroma type atomized liquid, medical atomized liquid, and the like.

The heating element comprises a metal fiber felt 10 with a porous structure, pictures of the metal fiber felt 10 are shown in figures 1 and 2 after being magnified by different magnification ratios under a microscope, and a real picture is shown in figure 3. The plurality of conductive metal fibers 110 are interlaced to form a plurality of pores 120 in the metal fiber mat, i.e., the metal fiber mat 10 is formed in a porous structure. The pore structure in the metal fiber mat 10 may be designed arbitrarily, such as a round pore, a square pore, or an irregular pore as shown in fig. 2. Due to the surface tension and the capillary action of the tobacco tar of the electronic cigarette and the strong oleophylic ability of the metal fiber felt 10, the tobacco tar of the electronic cigarette can be fully attached to the periphery of the metal fiber felt 10. In this embodiment, the porosity of the metal fiber mat 10 is as high as 50% to 90%, so that the smoke of the electronic cigarette can be attached to the surface of the metal fiber mat 10, and can be sufficiently infiltrated into the pores 110 inside the metal fiber mat 10, so that the specific surface contact area between the metal fiber mat 10 and the smoke of the electronic cigarette is larger, and the metal fiber mat 10 with a porous structure has the advantage of large dust holding capacity.

The metal fiber felt 10 is made of a plurality of conductive metal fibers 110 through processes of chopping, paving, laminating and high-temperature sintering, the conductive metal fibers 110 comprise at least one of stainless steel metal fibers, iron-chromium-aluminum metal fibers, titanium-nickel metal fibers, nickel metal fibers and hastelloy fibers, and the made metal fiber felt 10 has strong conductive heating capacity, small density, good impact resistance and high-temperature resistance, and is beneficial to improving the overall performance of an electronic cigarette using the heating body. Alternatively, stainless steel metal fibers are used as the material of which the metal fiber mat 10 is made. Stainless steel refers to steel resistant to weak corrosive media such as air, steam, water, etc. and chemically corrosive media such as acid, alkali, salt, etc., and is also called as acid-resistant stainless steel. The stainless steel metal fiber is an ideal material for manufacturing the metal fiber felt 10 with high temperature resistance, corrosion resistance and high precision, and the stainless steel metal fiber is used as the material of the metal fiber felt 10, so that the replacement period of the metal fiber felt 10 is long, namely the service life of the metal fiber felt is prolonged.

It is understood that when the power supply supplies the metal fiber felt 10 with the driving current, the metal fiber felt 10 generates heat and atomizes the tobacco tar of the electronic cigarette contacting with the metal fiber felt 10. Because the heat-generating body in the above-mentioned heat-generating body can fully contact with the tobacco tar of electron cigarette, make the tobacco tar of electron cigarette and heat-generating body form efficient heat transfer, the heat transfer system, thereby it has higher atomization efficiency for traditional electron cigarette, and the heat that the heat-generating body produced can disperse ground and transmit the tobacco tar, the hole 110 that remains after the tobacco tar evaporates is again constantly replenished through capillary action, thereby avoid the condition of frying oil to appear, in addition, the tobacco tar of electron cigarette rather than full contact can also reduce the operating temperature of heat-generating body effectively, thereby be unlikely to aggravate because of the heat transfer operating mode and lead to the heat-generating body temperature to rise to too high, avoid too high temperature to make the tobacco tar schizolysis of electron cigarette in order to produce multiple harmful substance such. In this embodiment, adopt the battery as the power of heat-generating body, through the promotion of atomizing efficiency, can also reduce the power output of battery to improve the duration of a journey ability of battery. In other embodiments, a charging interface can be arranged, and an external power supply of the charging interface is used for replacing a storage battery to supply power to the heating element, so that the effect of saving power can be achieved.

In this embodiment, the holes in the metal fiber mat 10 are through holes, so that it has an advantage of good permeability. Optionally, the pores 120 in the metal fiber mat 10 range in diameter from 3 microns to 100 microns. The traditional electronic cigarette uses a ceramic material as a heating body, the pore-forming sintering process of the ceramic material cannot completely and effectively control the diameter and the distribution density of micropores of the ceramic material, and the micropores are easily blocked to form blind holes due to the reasons of pyrolysis, chain aggregation and the like of tobacco tar under the high-temperature heating of the heating body, so that the tobacco tar flow channel is unsmooth during atomization to form 'paste and bullet' and change the taste. And above-mentioned heat-generating body is the metal fiber felt 10 that is formed through processing technology by many electrically conductive metal fiber 110, and metal fiber felt 10 has a plurality of through-holes, compares in traditional heat-generating body, and in the tobacco tar of heating electron cigarette carries out atomizing to it, the phenomenon in stifled hole can be formed to the tobacco tar dry combustion method of through-hole can avoid the tobacco tar of electron cigarette to burn to avoid the tobacco tar runner not smooth, and user experience is better.

In the present embodiment, the metal fiber mat 10 is a flexible metal fiber mat, which is easy to process, form and weld, and the metal fiber mat 10 can be folded into an arbitrary shape. For example, when the electronic cigarette is applied to an electronic cigarette, the electronic cigarette can be folded to make the volume as small as possible so as to adapt to the small volume characteristic of the electronic cigarette and can be folded into any shape so as to adapt to the internal structural characteristic of the electronic cigarette.

In this embodiment, the metal fiber mat 10 has a diameter in the range of 2 to 50 microns. The metal fiber mat 10 is manufactured on a cylindrical tool having a diameter in the range of 2 to 50 microns, i.e., the metal fiber mat 10 has a diameter in the range of 2 to 50 microns. Alternatively, the thickness of the metal fiber mat 10 ranges from 0.1 mm to 1 mm, and a layer of the metal fiber mat 10 may be used as the heat generating body, and in other embodiments, a plurality of layers of the metal fiber mats 10 may be stacked to serve as the heat generating body. In the embodiment, the density of the pores 120 of the metal fiber mat 10 is easy to control, and can be set according to actual needs.

The application also provides an electron cigarette, including electron cigarette body and foretell heat-generating body. The heating element sets up in this internally of electron cigarette, and the heating element is used for atomizing the tobacco tar of electron cigarette after generating heat. The heating element in the electronic cigarette comprises a flexible metal fiber felt 10 with a porous structure, has the advantages of large specific surface area, small relative density, high cost performance, good filtering, heat transfer and mechanical properties and the like, is easy to process, mold and weld, thereby simplifying the process flow for producing the electronic cigarette, is beneficial to the small-volume design of the electronic cigarette and the reduction of the cost of the electronic cigarette, has high porosity, has larger specific surface-to-surface contact area with the tobacco tar of the electronic cigarette than the traditional heating element, is beneficial to improving the atomization efficiency of the electronic cigarette, can avoid the phenomenon that the tobacco tar is cracked to generate harmful substances such as formaldehyde and the like due to overhigh local temperature of the heating element of the electronic cigarette, and can avoid the phenomenon of hole blockage caused by cracking and conglomeration of the tobacco tar due to the ceramic processing technology or high temperature compared with the traditional mode of matching a ceramic main body with a metal heating wire or a metal sheet, thereby avoiding the phenomenon that the mouth feel of the electronic cigarette is influenced by the unsmooth formation of 'paste bullet' due to the And the user experience is better.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A heat-generating body, characterized by comprising:

the metal fiber felt is provided with a porous structure and is used for atomizing target liquid after heating; the metal fiber felt is a flexible metal fiber felt; the metal fiber felt is manufactured on a cylindrical appliance with the diameter range of 2-50 microns; the holes in the metal fiber felt are through holes.

2. A heat-generating body as described in claim 1, characterized in that the porosity of the metal fiber mat is in the range of 50% to 90%.

3. A heat-generating body as described in claim 1, characterized in that said metal fiber mat is made of a plurality of conductive metal fibers.

4. A heat-generating body as described in claim 3, wherein said electrically conductive metal fiber comprises at least one of a stainless steel metal fiber, an iron-chromium-aluminum metal fiber, a titanium-nickel metal fiber, a nickel metal fiber, and a hastelloy fiber.

5. A heat-generating body as described in claim 3, wherein said plurality of conductive metal fibers are made into said metal fiber mat by a process of chopping, laying, laminating and high-temperature sintering.

6. A heat-generating body as described in claim 4, characterized in that the electrically conductive metal fiber is a stainless steel metal fiber.

7. A heat-generating body as described in claim 1, wherein the metal fiber mat has a diameter in a range of 2 to 50 μm.

8. A heat-generating body as described in claim 1, characterized in that the thickness of said metal fiber mat is in the range of 0.1 mm to 1 mm.

9. A heat-generating body as described in claim 1, characterized in that the diameter of the hole in said metal fiber mat is in the range of 3 to 100 μm.

10. An electronic cigarette comprises an electronic cigarette body and is characterized by further comprising the heating body according to any one of claims 1-9, wherein the heating body is used for atomizing tobacco tar of the electronic cigarette.