Heating film, method for preparing same, heating tube, and heating appliance
AssigneeGuangdong Midea Kitchen Appliances Manufacturing Co., Ltd.
InventorsZehui ZHANG, Xingzhong WANG, Jie RAO, Yanjun SUN, Xiangwei TANG
Life of this patent
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Abstract
Provided are a heating film, a method for preparing the heating film, a heating tube, and a heating appliance. The heating film has a critical temperature. When a temperature of the heating film is lower than the critical temperature, a resistance of the heating film decreases with an increase in the temperature of the heating film. When the temperature of the heating film is higher than the critical temperature, the resistance of the heating film increases with the increase in the temperature of the heating film.
Claims21
A heating film, having a critical temperature, wherein:
- when a temperature of the heating film is lower than the critical temperature, a resistance of the heating film decreases with an increase in the temperature of the heating film;
- and
- when the temperature of the heating film is higher than the critical temperature, the resistance of the heating film increases with the increase in the temperature of the heating film.
21-22. (canceled)
Dependencies are inferred from the claim text.