WO2020206580A1

WO2020206580A1 - Electronic cigarette atomizing component and manufacturing method thereof

Info

Publication number: WO2020206580A1
Application number: PCT/CN2019/081679
Authority: WO
Inventors: 黄惠华; 郭美玲; 周波
Original assignee: 昂纳自动化技术（深圳）有限公司
Priority date: 2019-04-08
Filing date: 2019-04-08
Publication date: 2020-10-15

Abstract

An electronic cigarette atomizing component (10) and a manufacturing method thereof, wherein the atomizing component (10) comprises a heat conducting base body (11) and a flat plate-shaped heating body (12), wherein the heating body (12) is arranged on the heat conducting base body (11) and at least one surface thereof is attached to the heat conducting base body (11); and at least one end of the heating body (12) is provided with a conductor (13) or a conductor contact.

Description

Atomization component for electronic cigarette and manufacturing method thereof

Technical field

The present invention relates to the technical field of electronic cigarettes, in particular to an atomizing component for electronic cigarettes and a manufacturing method thereof.

Background technique

Among the existing electronic cigarettes, there are two types of solid electronic cigarette atomizing components. One is an atomizing component in which a spiral heating wire is embedded in a ceramic. The manufacturing steps are as follows:

1. Prepare ceramic slurry and place the spiral heating wires one by one into the ceramic blank forming mold;

2. Fill the ceramic slurry into the ceramic blank forming mold and wait for the ceramic slurry to be fixed and formed;

3. Bake at low temperature to remove volatiles and take out the ceramic green body with heating wire;

4. High temperature sintering at 400℃-1600℃ to form ceramic atomized components.

The disadvantages are as follows:

1. The size consistency of ceramic atomization components is poor, and the strength of atomization components is low;

2. Need to put the spiral heating wire into the mold one by one, which has low production efficiency and high cost;

3. Because it is necessary to ensure that the heating wire maintains a spiral shape, the diameter of the heating wire cannot be too small (requires to maintain a certain strength); therefore, this process cannot be used to make high-resistance ceramic atomization components.

Another solid e-cigarette component is to print electronic paste on ceramic or stainless steel tubes/sheets, form a heating element after high temperature baking, and then weld the conductors for connecting the positive and negative electrodes of the power supply device to both ends of the heating element.

The disadvantages are as follows:

1. The paste contains precious metals such as silver, palladium, ruthenium, etc., which is costly;

2. The slurry contains certain irritating organic matter, which is harmful to the human body;

3. Due to the different materials and expansion coefficients of the slurry and the matrix, the resistance value of the heating element is affected by the temperature during the use of the atomization component, the heating element is easy to burn, and the stability is poor;

4. The heating element of this type of atomization component is thinner, has a low melting point, and is not resistant to high temperatures, which causes the solder joints at both ends of the heating element to be easily broken and poor contact.

technical problem

The technical problem to be solved by the present invention is to provide an atomizing component for electronic cigarettes that realizes high-efficiency production and a manufacturing method thereof.

Technical solutions

The technical solution adopted by the present invention to solve its technical problems is to provide an atomization assembly for electronic cigarettes, including a heat-conducting substrate and a flat-plate heating element, the heating element is arranged on the heat-conducting substrate and at least one side is connected to The heat-conducting substrates are attached to each other; at least one end of the heating body is provided with a conductor or a conductor contact.

Preferably, the heating element is attached to the surface of the heat-conducting base; or, the heating element is partially or completely embedded in the surface of the heat-conducting base.

Preferably, the heating element is embedded in the heat conducting base.

Preferably, the thermally conductive substrate is made of glass, ceramic or purified aluminum.

Preferably, the heating element is a metal sheet or a carbon sheet.

Preferably, the metal sheet is made of stainless steel, nickel, titanium, nickel-chromium alloy or aluminum.

Preferably, the atomizing assembly further includes a conductor connected with the conductor contact.

The present invention also provides a method for manufacturing an atomizing component for electronic cigarettes, which includes the following steps:

S1. Process a plurality of heating bodies arranged at intervals and respectively with conductors or conductor contacts on the heating body material plate;

S2, setting the heating element blank with heating element on the original blank of the base;

S3, corresponding to each of the heating bodies, cutting the original blank of the base into a plurality of independent heat-conducting bases, and each of the heat-conducting bases and the heating body on it form an atomizing assembly.

Preferably, step S2 includes:

S2.1. Set the heating body material board with heating body on the first base body blank;

S2.2. Pressing a second base body blank on the heating element blank and joining with the first base body blank, and the second base body blank and the first base body blank form the base body blank.

The present invention also provides another method for manufacturing an atomizing component for electronic cigarettes, which includes the following steps:

S1. Set the heating element material board on the original blank of the base body;

S2. According to the position of the conductor on the heating body, a conductor is defined on the heating body material plate, and a conductive metal layer is arranged on the position of the conductor;

S3, processing a plurality of heating elements arranged at intervals on the heating element blank by cutting and/or chemical etching; at least one end of each of the heating elements has the conductor;

S4, corresponding to each of the heating bodies, cutting the original blank of the base into a plurality of independent heat-conducting bases, and each of the heat-conducting bases and the heating body on it form an atomizing assembly.

Beneficial effect

In the atomizing assembly of the present invention, the heating element is arranged in a flat plate shape on the heat-conducting substrate, without support, and can be manufactured with a wide resistance range; during manufacture, multiple heating elements can be put in place on the heat-conducting substrate in one step without putting the heating elements one by one. Mass production, good consistency and high production efficiency, reduce costs.

Description of the drawings

The present invention will be further described below in conjunction with the accompanying drawings and embodiments. In the accompanying drawings:

FIG. 1 is a schematic diagram of the structure of the atomization assembly of the first embodiment of the present invention;

Fig. 2 is a schematic diagram of a manufacturing process of the atomization assembly of the first embodiment of the present invention;

Fig. 3 is a schematic diagram of another manufacturing process of the atomization assembly of the first embodiment of the present invention;

4 is a schematic diagram of the structure of the atomization assembly of the second embodiment of the present invention;

FIG. 5 is a schematic diagram of the structure of the atomization assembly of the third embodiment of the present invention;

FIG. 6 is a schematic diagram of the manufacturing process of the atomization assembly according to the fourth embodiment of the present invention;

Fig. 7 is a schematic diagram of the manufacturing process of the atomization assembly according to the fourth embodiment of the present invention.

Embodiments of the invention

In order to have a clearer understanding of the technical features, objectives and effects of the present invention, the specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

As shown in FIG. 1, the atomization assembly 10 for electronic cigarettes according to the first embodiment of the present invention includes a heat conducting base 11 and a flat heating element 12. The heating element 12 is disposed on the heat-conducting base 11, and at least one surface of the heating element 12 is attached to the heat-conducting base 11.

The heat-conducting base 11 is a seat structure, and the outer peripheral shape can be various shapes such as a circle, a polygon, or the like, or set corresponding to the outer peripheral shape of the heating element 12. The heat-conducting substrate 11 may be made of heat-conducting and high-temperature resistant insulating materials such as glass, ceramics or purified aluminum.

The heating element 12 has a flat-plate structure, and two opposite surfaces are flat surfaces, and can be arranged on the heat-conducting base 11 through at least one surface and contact the heat-conducting base 11 to conduct heat. The heating element 12 is fixed on the heat-conducting base 11 in a surface contact manner, and no other supporting parts are required for supporting and fixing.

Alternatively, the heating element 12 may be attached to the surface of the heat-conducting base 11; or, the heating element 12 is partially or completely embedded in the surface of the heat-conducting base 11.

The heating element 12 may be made of conductive materials such as metal or carbon, and is a metal sheet or a carbon sheet. Among them, the metal sheet is made of metal materials such as stainless steel, nickel, titanium, nickel-chromium alloy or aluminum; the metal sheet is a solid metal sheet or a metal mesh sheet. The carbon sheet is made of carbon material.

The material, shape and size of the heating element 12 can be selected correspondingly according to the required resistance.

In this embodiment, the heating element 12 includes two elongated heating sheets 121, the two heating sheets 121 are spaced apart and parallel, and the ends of one end respectively extend obliquely toward each other and are joined together, and the joint is arrow-shaped. Each heating sheet 121 is also provided with a strip groove, which can extend along the length of the heating sheet. The overall area of the heating sheet 121 and the resistance value of the heating element 12 can be changed by the arrangement of the strip groove. In other embodiments, the strip-shaped groove may be replaced by a through hole. The heating sheet 121 is not limited to two, and can be added as needed.

In this embodiment, the overall peripheral shape of the heating element 12 is approximately pentagonal, the outer peripheral shape of the heat conducting base 11 is corresponding to the overall outer circumference of the heating element 12, and the outer circumference size is larger than that of the heating element 12.

The thickness of the atomization component of this embodiment is 0.2-2 mm; the resistance value is 0.1-3.0Ω.

One end of the heating element 12 (the free ends of the two heating sheets 121) extends to the outside of the heat-conducting base 11, that is, it is not attached to the surface of the heat-conducting base 11. The end of the heating element 12 extending outside the heat-conducting base 11 forms a conductor 13 for electrically connecting with the power supply device of the electronic cigarette. The conductors 13 formed by extending the free ends of the two heating sheets 121 respectively correspond to the positive and negative electrodes.

In order to increase the conductivity of the conductor 13, a conductive metal layer is formed on the conductor 13 by means of electroplating or vacuum plating.

Referring to Fig. 2, a manufacturing method of the atomization assembly according to the first embodiment of the present invention may include the following steps:

S1. A plurality of heating elements 12 arranged at intervals and each with a conductor 13 are processed on the heating element blank 100.

During processing, the heating element 12 is fabricated on the heating element blank 100 according to the shape and specifications of the heating element 12 by means of chemical etching, laser cutting, or stamping, so as to realize batch processing of the heating element 12.

The plurality of heating elements 12 are connected by a strip of the heating element blank 100 and will not be separated into independent heating elements 12.

S2. The heating element blank 100 with the heating element 12 is set on the base body 200.

The arrangement of the heating element blanks 100 on the base blank 200 realizes that a plurality of heating elements 12 can be put in place in one step without placing them one by one.

The attachment and fixation of the heating element blank 100 on the base blank 200 can be achieved by riveting or in-mold injection.

S3, corresponding to each heating element 12, cut the base body 200 into a plurality of independent heat-conducting bases 11, and each heat-conducting base 11 and the heating element 12 on it form an atomizing assembly 10.

When cutting, the material strips connected between the heating elements 12 are also cut at the same time, and the multiple connected heating elements 12 are also divided into multiple independent heating elements 12. Cutting can be realized by laser cutting, wire cutting and grinding wheel cutting.

Before or after cutting, a conductive metal layer is also provided on the conductor 13 by means of electroplating or vacuum plating as needed to increase the conductivity of the conductor 13.

After cutting, it also includes cleaning and drying the atomization assembly 10.

Referring to FIG. 3, another manufacturing method of the atomization assembly according to the first embodiment of the present invention may include the following steps:

S1. Set the heating element blank 100 on the base body 200.

The heating element blank plate 100 is attached to and fixed to the surface of the original substrate 200 with its surface facing the original substrate 200.

S2. According to the position of the conductor 13 on the heating body 12, a conductor 13 is defined on the heating body blank 100, and a conductive metal layer is provided at the position of the conductor 13 by partial plating or partial vacuum plating.

S3, processing a plurality of heating elements 12 arranged at intervals on the heating element blank 100.

During processing, the heating element 12 is made on the heating element blank 100 by cutting and/or chemical etching according to the shape and specifications of the heating element 12 to realize batch processing of the heating element 12. At least one end of each heating element 12 has a conductor 13.

The strips connected between the heating elements 12 are discharged, so that the plurality of heating elements 12 are independently attached to the base body 200.

S4, corresponding to each heating element 12, cut the base body 200 into a plurality of independent heat-conducting bases 11, and each heat-conducting base 11 and the heating element 12 on it form an atomization assembly 10.

Cutting can be realized by laser cutting, wire cutting and grinding wheel cutting.

As shown in FIG. 4, the atomizing assembly 20 for electronic cigarettes according to the second embodiment of the present invention includes a heat conducting base 21 and a flat heating element 22. The heating element 22 is disposed on the heat conducting base 21, and at least one surface of the heating element 22 is attached to the heat conducting base 21.

This embodiment is different from the above-mentioned first embodiment in that the end of the heating element 12 extends to the outside of the heat conducting base 11 to form a conductor contact 23. The atomizing assembly further includes a conductor 24, which is fixed on the conductor contact 23 by welding or riveting.

For the heating element 22, which is a metal mesh with poor electrical conductivity (compared to a solid metal sheet) but with more uniform heat generation, the way the conductor 24 is externally connected is compared to the way the heating element 22 is integrally formed to overcome the heating element 22 The problem of poor electrical conductivity, and the heat of the conductor 24 can be lower than that of the heating element 12, so that the temperature of the circuit board or the surface of the electronic cigarette conducted to the power supply device of the electronic cigarette is relatively low, avoiding damage to the circuit board or overheating of the user's hand.

Understandably, the heating element 22 of this embodiment is not limited to metal mesh sheets, and solid metal sheets and carbon sheets are also applicable.

When manufacturing the atomizing assembly of this embodiment, refer to the method corresponding to FIGS. 2 and 3 to complete the setting and cutting of the heating element 22 on the thermally conductive base 21 to form an independent thermally conductive base 21 with the heating element 22. The conductor contact 23 can refer to the arrangement of the conductor 13 shown in FIG. 2, and finally the conductor 24 is fixed on the conductor contact 23 by welding or riveting.

As shown in FIG. 5, the atomization assembly 30 for electronic cigarettes according to the third embodiment of the present invention includes a thermally conductive base 31 and a flat heating element 32. The heating element 32 is disposed on the heat-conducting base 31, and at least one surface of the heating element 32 is attached to the heat-conducting base 31.

In this embodiment, the heating element 32 includes three elongated heating sheets 321, the three heating sheets 321 are spaced apart and parallel, and the ends of one end are joined, and the joint is arrow-shaped. The other ends of the three heating pieces 321 are respectively provided with conductors 33, which are respectively used to electrically connect the positive and negative poles of the power supply device of the electronic cigarette. By controlling the electrical connection of the different conductors 33, the resistance value, heating area and heating area of the atomization component can be controlled. Smoke volume, to achieve different smoke volume and taste experience effects.

For the manufacturing method of the atomization assembly of this embodiment, reference may be made to the methods corresponding to FIGS. 2 and 3 above.

As shown in FIG. 6, the atomizing assembly 40 for electronic cigarettes according to the fourth embodiment of the present invention includes a heat conducting base 41 and a flat heating element 42. The heating element 42 is arranged on the heat conducting base 41, and at least one surface of the heating element 42 is attached to the heat conducting base 41.

This embodiment is different from the first to third embodiments described above in that the heating element 42 is embedded in the heat-conducting base 41 so that the two opposite surfaces of the heating element 42 are in contact with the heat-conducting base 41 to conduct heat. The arrangement of the heating element 42 in the heat conducting base 41 can prevent oxidation during operation.

Specifically, the thermally conductive base 41 may include a first base 411 and a second base 412 that are press-fitted relative to each other, and the heating body 42 is disposed between the first base 411 and the second base 412. Alternatively, the heating element 42 is embedded in the heat-conducting base 41 by in-mold injection, and the heating element 42 divides the heat-conducting base 41 on opposite sides thereof into a first base 411 and a second base 412.

At least one end of the heating element 42 is provided with a conductor 43, and the conductor 43 can be directly formed on the end of the heating element 42 or externally connected. For the external connection method, the end of the heating element 42 is provided with a conductor contact, and the conductor 43 is fixedly connected to the conductor contact by welding or riveting.

In this embodiment, the shapes and materials of the heat-conducting base 41, the heating element 42, and the conductor 43 can be referred to the first to third embodiments above, and will not be repeated here.

As shown in FIG. 7, the manufacturing method of the atomization assembly of this embodiment may include the following steps:

S1. A plurality of heating bodies 42 arranged at intervals and respectively with conductors 43 are processed on the heating body material plate 300.

During processing, according to the shape and specifications of the heating element 42, the heating element 42 is fabricated on the heating element blank 300 by chemical etching, laser cutting or punching, etc., to realize the batch processing of the heating element 42.

The plurality of heating elements 42 are connected by a tape of the heating element blank 300 and will not be separated into independent heating elements 42.

S2. The heating element blank 300 with the heating element 42 is set on the base body 400.

The setting of the heating element blank plate 300 on the base blank 400 realizes that a plurality of heating elements 41 can be put in place in one step without placing them one by one.

Among them, the base blank 400 is formed by pressing the first base blank 401 and the second base blank 402 relative to each other.

Specifically, this step S2 may include:

S2.1. Set the heating element blank 300 with the heating element 42 on the first base blank 401;

S2.2. Press the second base blank 402 on the heating element blank plate 300 and join it with the first base blank 401. The second base blank 402 and the first base blank 401 form a base blank 400.

In other embodiments, the heating element blank 100 may also be formed inside the base original blank 200 by in-mold injection molding.

S3. Cut the original base 400 corresponding to each heating element 42 into a plurality of independent thermally conductive substrates 41, and each thermally conductive substrate 41 and the heating element 42 on it form an atomizing assembly 40.

When cutting, the tape connected between the heating elements 42 is also cut at the same time, and the plurality of connected heating elements 42 are also divided into a plurality of independent heating elements 42. Cutting can be realized by laser cutting, wire cutting and grinding wheel cutting.

Before or after cutting, a conductive metal layer is also provided on the conductor 43 by means of electroplating or vacuum plating as needed to increase the conductivity of the conductor 43.

After cutting, it also includes cleaning and drying the atomization assembly 40.

In summary, the manufacturing method of the atomization component of the present invention can manufacture multiple atomization components at one time, with good consistency and improved production efficiency. The atomizing component of the present invention is suitable for baking electronic cigarettes.

The above are only the embodiments of the present invention, and do not limit the scope of the present invention. Any equivalent structure or equivalent process transformation made by using the content of the description and drawings of the present invention, or directly or indirectly applied to other related technologies In the same way, all fields are included in the scope of patent protection of the present invention.

Claims

An atomizing assembly for electronic cigarettes, which is characterized by comprising a heat-conducting base and a flat-plate heating body, the heat-generating body is arranged on the heat-conducting base and at least one side is attached to the heat-conducting base; At least one end of the heating element is provided with a conductor or a conductor contact.
The atomization assembly according to claim 1, wherein the heating element is attached to the surface of the heat-conducting substrate; or, the heating element is partially or completely embedded in the surface of the heat-conducting substrate.
The atomization assembly of claim 1, wherein the heating element is embedded in the heat conducting base.
The atomization assembly according to any one of claims 1 to 3, wherein the thermally conductive substrate is made of glass, ceramic or purified aluminum.
The atomization assembly according to any one of claims 1 to 3, wherein the heating element is a metal sheet or a carbon sheet.
The atomization assembly of claim 5, wherein the metal sheet is made of stainless steel, nickel, titanium, nickel-chromium alloy or aluminum.
The atomization assembly according to any one of claims 1 to 3, wherein the atomization assembly further comprises a conductor connected to the conductor contact.
A method for manufacturing an atomizing component for an electronic cigarette is characterized in that it comprises the following steps:

S1. Process a plurality of heating bodies arranged at intervals and respectively with conductors or conductor contacts on the heating body material plate;

S2, setting the heating element blank with heating element on the original blank of the base;

S3, corresponding to each of the heating bodies, cutting the original blank of the base into a plurality of independent heat-conducting bases, and each of the heat-conducting bases and the heating body on it form an atomizing assembly.
8. The manufacturing method of claim 8, wherein step S2 comprises:

S2.1. Set the heating body material board with heating body on the first base body blank;

S2.2. Pressing a second base body blank on the heating element blank and joining with the first base body blank, and the second base body blank and the first base body blank form the base body blank.
A method for manufacturing an atomizing component for an electronic cigarette is characterized in that it comprises the following steps:

S1. Set the heating element material board on the original blank of the base body;

S2. According to the position of the conductor on the heating body, a conductor is defined on the heating body material plate, and a conductive metal layer is arranged on the position of the conductor;

S3, processing a plurality of heating elements arranged at intervals on the heating element blank by cutting and/or chemical etching; at least one end of each of the heating elements has the conductor;

S4, corresponding to each of the heating bodies, cutting the original blank of the base into a plurality of independent heat-conducting bases, and each of the heat-conducting bases and the heating body on it form an atomizing assembly.