IPC分类号：
A47J36/24 | A47J36/04 | H05B3/20 | H05B3/26 | H05B3/74 | H05B6/12
国民经济行业分类号：
C3379 | C3854 | C3382
当前申请(专利权)人：
FOSHAN SHUNDE MIDEA ELECTRICAL HEATING APPLIANCES MANUFACTURING CO. LTD. | MIDEA GROUP CO., LTD.
原始申请(专利权)人：
FOSHAN SHUNDE MIDEA ELECTRICAL HEATING APPLIANCES MANUFACTURING CO. LTD. | MIDEA GROUP CO., LTD.
当前申请(专利权)人地址：
San Le Road 19 Beijiao Shunde, Foshan, Guangdong, CN | B26-28F Midea Headquarter Building No. 6 Midea Avenue Beijiao Shunde Foshan, Guangdong, CN
工商统一社会信用代码：
91440606784896596B|91440606722473344C
工商登记状态：
存续（在营、开业、在册）|存续（在营、开业、在册）
工商注册地址：
佛山市顺德区北滘镇三乐东路19号|佛山市顺德区北滘镇美的大道6号美的总部大楼B区26-28楼
工商成立日期：
2006-02-24|2000-04-07
发明人：
YIN, SHANZHANG | FANG, ZHEN | WANG, XINYUAN | ZHANG, JIANLIANG | ZHANG, GUILIN
摘要：
An electrothermal film layer manufacturing method, an electrothermal film layer, an electrically-heating plate, and a cooking utensil. An electrothermal film layer is formed, by means of a spraying method, a deposition method or an evaporation plating method, on a surface of an insulation substrate with a temperature of 450 to 600 degrees by using a mixture comprising tin dioxide, antimony and fluorine; and then the electrothermal film layer is manufactured by performing annealing and filming processing on the electrothermal film layer and the insulation substrate. The electrothermal film layer manufacturing method is simple and is convenient to operate, the manufactured electrothermal film layer can convert radiant heat energy into infrared heat energy to radiate, allows heat to be rapidly increased, can reduce temperature loss caused by moisture exhaust, increase the speed of heat energy absorption, and decrease heat energy loss, and accordingly the radiation heat conduction efficiency is effectively improved, the objective of energy conservation is achieved, and the demands of a nation on energy conservation products are better satisfied.
技术问题语段：
The technical problem of the patent text is that current electric heating appliances use traditional electric wire heating technology or electromagnetic heating technology, but they have low electric-thermal conversion energy efficiency ratios, which means they cannot fully meet energy conservation and environmental protection requirements, resulting in energy waste. Therefore, there is an urgent need to improve the efficiency of these appliances to better meet the requirements of energy conservation and environmental protection.
技术功效语段：
This patent describes a method for making an electrothermal film layer that can improve energy conversion efficiency, promote energy conservation, and meet the requirements of energy-conserving products. The electrothermal film layer made using this method has properties such as low resistivity, high light transmittance, and high power density, ensuring stability and reliability of the far-infrared electric heating disc. The technical effects of this patent are improved energy conversion efficiency and promoting energy conservation through the use of an electrothermal film layer.
权利要求：
1. A method for manufacturing an electrothermal film layer (1), wherein the electrothermal film layer (1) is formed on a surface of an insulating substrate by subjecting a mixture comprising tin dioxide, antimony and fluorine to spraying, deposition or evaporation, and the electrothermal film layer and the insulating substrate are subjected to annealing, characterised in that based on a total mass of the mixture an amount of antimony is in a range of 1.0 to 2.0%, and an amount of fluorine is in a range of 0.1 to 0.3%.
2. The method according to claim 1, wherein a mass ratio of tin oxide, antimony and fluorine is 98.35: 1.5: 0.15.
3. The method according to claim 1, wherein the mixture further comprises Cr2O3, MnO2 and Ni2O3.
4. The method according to any one of claims 1 to 3, wherein the annealing is performed at a temperature of 450 to 600 °C.
5. The method according to any one of claims 1 to 3, wherein the annealing is performed for 15 to 25 minutes.
6. The method according to any preceding claim , wherein the electrothermal film layer is formed by spraying with a thickness in a proportional function from 0.5 µm at the inner edge to 1.5 µm at the outer edge at a spraying power of 3 to 5 watts per square centimeter.