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High-temperature graphene heating plate and preparation method thereof

A technology of high-temperature graphite and heating plate, applied in ohmic resistance heating, heating element materials, ohmic resistance heating parts, etc., can solve the problems of poor heating effect, short life, easy damage, etc., and achieve small electromagnetic radiation and long service life , the effect of stable performance

Active Publication Date: 2019-03-12
牛墨石墨烯应用科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Therefore, in view of the above content, the present invention provides a high-temperature graphene heating plate and a preparation method thereof, which solve the problems of inherent fragility, light pollution, short life, and poor heating effect of existing quartz heating tubes.

Method used

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  • High-temperature graphene heating plate and preparation method thereof
  • High-temperature graphene heating plate and preparation method thereof
  • High-temperature graphene heating plate and preparation method thereof

Examples

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Effect test

Embodiment 1

[0029] refer to Figure 1 to Figure 3 , a high-temperature graphene heating plate, comprising a high-temperature graphene heating element 1, a mica insulating plate frame 2, a lead wire 3 and a cover 4, and the mica insulating plate frame 2 is composed of a mica insulating groove 21 and a mica insulating groove arranged on the mica insulating groove The mica insulating cover plate 22 is combined to form an internal cavity; the high-temperature graphene heating element 1 is located in the internal cavity, and the high-temperature graphene heating element is composed of the first protective layer 11, graphite Graphene film layer 12 and the second protective layer 14, the two sides of the second protective layer 14 are provided with metal bus bars 13; one end of the lead 3 is connected to the high-temperature graphene heating element, and the other end passes through the mica insulating frame and The casing is connected to an external power supply; the casing 4 is wrapped around ...

Embodiment 2

[0039] A kind of high-temperature graphene heating plate, its structure is consistent with embodiment one, and the preparation method of described graphene film layer is as follows:

[0040] (1) Weigh 5 parts by weight of graphene, 65 parts by weight of water, and 12 parts by weight of ethylene glycol diacetate, pour them into a high-speed shear after fully mixing and stirring, and shear at a high speed for 1.5h, then add an ultrasonic disperser In, add 2 weight parts of alkylphenol polyoxyethylene ether again, carry out supersonic treatment 5h and obtain graphene dispersion liquid;

[0041] (2) Add 7 parts by weight of rosin resin, 25 parts by weight of silver-plated glass microspheres, and 2 parts by weight of sodium methylene bis-naphthalene sulfonate in the above-mentioned graphene dispersion and stir and mix for 35min to obtain the graphene conductive paste. The graphene conductive paste was sprayed on the substrate, and the substrate was ultrasonically oscillated while s...

Embodiment 3

[0048] A kind of high-temperature graphene heating plate, its structure is consistent with embodiment one, and the preparation method of described graphene film layer is as follows:

[0049] (1) Weigh 5 parts by weight of graphene, 70 parts by weight of water, and 15 parts by weight of ethylene glycol diacetate, pour them into a high-speed shear after fully mixing and stirring, shear at a high speed for 2 hours, and then add them to an ultrasonic disperser , add 3 parts by weight of alkylphenol polyoxyethylene ether, carry out supersonic treatment 6h and obtain graphene dispersion liquid;

[0050] (2) Add 10 parts by weight of rosin resin, 30 parts by weight of silver-plated glass microspheres, and 3 parts by weight of sodium methylene bis-naphthalene sulfonate in the above-mentioned graphene dispersion and stir and mix for 40min to obtain the graphene conductive paste. The graphene conductive paste was sprayed on the substrate, and the substrate was ultrasonically oscillated ...

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Abstract

The invention relates to the field of heating devices, in particular to a high-temperature graphene heating plate and a preparation method thereof. The high-temperature graphene heating plate comprises a high-temperature graphene heating body, a mica insulating plate frame, a lead and a cover shell, wherein the mica insulating plate frame is formed by combining a mica insulating groove and a micainsulating cover plate arranged on the mica insulating groove, and an internal cavity is formed; the high-temperature graphene heating body is arranged in the internal cavity; the high-temperature graphene heating body comprises a first protection layer, a graphene film layer and a second protection layer which are sequentially arranged from top to bottom; metal current-carrying strips are arranged on the two sides of the second protection layer; one end of the lead is connected to the high-temperature graphene heating body while the other end of the lead penetrates through the mica insulatingplate frame and the cover shell and is connected to an external power supply; and the cover shell coats the outer side of the mica insulating plate frame. The high-temperature graphene heating plateis suitable for being used as a heating component on household appliances and various machine equipment, and has the advantages of being uniform in heating, good in heat stability, long in service life and resistant to high temperature.

Description

technical field [0001] The invention relates to the field of heating devices, in particular to a high-temperature graphene heating plate and a preparation method thereof. Background technique [0002] At present, heating appliances mainly include quartz heating tubes and low-temperature radiation heating films. Among them, high-temperature heating appliances are widely used in household appliances, various machinery and equipment as heating components, and various industrial and agricultural heating occasions. , thermal stability, long life, high temperature characteristics. [0003] The invention with authorized notification number CN101998709B discloses a quartz heating tube, which includes a quartz tube body, and the inner tube is in the shape of a straight line. The wire is connected with the nickel-chromium electrothermal alloy wire with electrodes; the middle tube is Z-shaped, the bottom horizontal tube of the middle tube is the heating area, the middle vertical tube ...

Claims

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Application Information

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IPC IPC(8): H05B3/02H05B3/10H05B3/20
CPCH05B3/02H05B3/10H05B3/20
Inventor 陈心军孟建武
Owner 牛墨石墨烯应用科技有限公司
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