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Heating body and preparation method thereof, electric heating atomizing core and electronic cigarette

A heating element and electric heating technology, applied in the field of electronic cigarettes, can solve the problems of easy dry burning, uneven heating of resistance wires, poor liquid locking ability, etc.

Pending Publication Date: 2021-11-26
SONGSHAN LAKE MATERIALS LAB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The first-generation technology is the outsourcing heating wire of glass fiber rope, which has been eliminated due to the problems of easy generation of floc, easy powder loss, and uneven heating.
The second-generation technology is the resistance wire cotton core, which has the advantages of large oil storage capacity, good oil conductivity, and dense smoke volume, but there are also obvious disadvantages, such as the cotton core is not resistant to high temperature, easy to dry burning, and the resistance wire heats the e-liquid. Uneven, easy to produce burnt smell, loose cotton core structure, poor liquid locking ability, easy to leak oil, large atomized molecular particles
[0004] At present, the ceramic atomizing core has gradually replaced the resistance silk cotton core, but the atomized smoke volume of the ceramic atomizing core is small, and the burnt smell will also appear when the suction volume is large.

Method used

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  • Heating body and preparation method thereof, electric heating atomizing core and electronic cigarette
  • Heating body and preparation method thereof, electric heating atomizing core and electronic cigarette
  • Heating body and preparation method thereof, electric heating atomizing core and electronic cigarette

Examples

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preparation example Construction

[0047] After introducing the electric heating atomizing core, the preparation method of the electric heating atomizing core is introduced below, and the preparation method includes:

[0048] S110, preparing the heating element 130: winding and braiding the carbon fiber tow 131 to form a carbon fiber braided rope. Blind holes 133 are formed in the monofilament surface of the carbon fiber tow 131 . Wherein, the carbon fiber tow 131 can be wound and woven into a carbon fiber braided rope first, and then the carbon fiber braided rope is formed into the main body shape (for example: spiral type) of the heating element 130, and then the carbon fiber braided rope is processed to make the carbon fiber tow 131 single Blind holes 133 are formed on the filament surface; the carbon fiber tow 131 can also be processed first to form a blind hole 133 on the surface of the monofilament of the carbon fiber tow 131, and then the carbon fiber tow 131 with the blind hole 133 is wound and woven in...

Embodiment 1

[0059] A method for preparing an electrically heated atomizing core, comprising the following steps:

[0060] (1), using 1k twisted carbon fiber tow with a monofilament diameter of 4 μm for winding and braiding to form a carbon fiber braided rope, and the carbon fiber braided rope is formed into a spiral (such as figure 1 Heater shape shown).

[0061] (2) Put the helical carbon fiber braided rope in a heating furnace, pass in argon as a protective gas, heat up to 1000° C., then pass in hydrogen and methane, and carry out chemical vapor deposition for 12 minutes to obtain a heating element.

[0062] (3) Using stainless steel riveting sheet to rivet the heating element and copper wire to obtain an electric heating atomizing core.

[0063] image 3 5K scanning electron microscope photomicrograph of the heating element provided by the embodiment of the present application; Figure 4 It is a 20K magnification scanning electron microscope photomicrograph of the heating element pr...

Embodiment 2

[0066] A method for preparing an electrically heated atomizing core, comprising the following steps:

[0067] (1), 480k untwisted carbon fiber tow with a single filament diameter of 4 μm is used for winding and braiding to form a carbon fiber braided rope, and the carbon fiber braided rope is formed into a spiral (such as figure 1 Heater shape shown).

[0068] (2) Put the spiral carbon fiber braided rope in a heating furnace, pass in argon as a protective gas, heat up to 1000°C, then pass in water vapor and carbon dioxide gas, and perform gas activation for 12 minutes to obtain a heating element.

[0069] (3) Using copper riveting sheet to rivet the heating element and silver wire to obtain an electric heating atomizing core.

[0070] Through the nitrogen isotherm adsorption-desorption curve test, the specific surface area of ​​the heating element provided by this embodiment is 600m 2 / g.

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Abstract

The invention relates to a heating body and a preparation method thereof, an electric heating atomizing core and an electronic cigarette, and belongs to the technical field of electronic cigarettes. The electric heating atomizing core comprises two electrodes, two conductive riveting parts and a heating body, wherein each electrode is fixedly connected with the heating body through one conductive riveting part. The heating body comprises a carbon fiber tow which is woven in a winding mode, and a plurality of blind holes with the nano-scale hole diameter are formed in the mono-filament surface of the carbon fiber tow. In the application, the carbon fiber tows are wound and woven to form the heating body, and a netted pore structure capable of absorbing and guiding oil can be formed between the tows, so that the heating body has better oil absorbing and guiding capabilities; the mono-filament surface of the carbon fiber tow is provided with a plurality of blind holes with nano-scale aperture, on one hand, a good oil locking effect can be formed, and the phenomenon of oil leakage is not easy to occur; on the other hand, synchronous heating and atomization can be achieved while oil absorption is conducted.

Description

technical field [0001] The present application relates to the technical field of electronic cigarettes, and in particular to a heating element and a preparation method thereof, an electric heating atomizing core and an electronic cigarette. Background technique [0002] With the generalization of the global tobacco control trend, new tobacco products have gradually become an important development direction of the tobacco industry because of their advantages in reducing harmful components, and e-cigarettes have become one of the hot spots of new tobacco products in the world. [0003] The core component of the electronic cigarette is the atomizing core. After more than ten years of development, the atomizing core has experienced three generations of technological evolution. The first-generation technology is glass fiber rope outsourcing heating wire, which has been eliminated due to the problems of easy generation of floc, easy powder loss, and uneven heating. The second-gen...

Claims

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Application Information

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IPC IPC(8): A24F40/46A24F40/40A24F40/10A24F40/70
CPCA24F40/46A24F40/40A24F40/10A24F40/70
Inventor 林梓家于杰李振伟苑甫王恩哥
Owner SONGSHAN LAKE MATERIALS LAB