Title:
SELF-TEMPERATURE-LIMITING ELECTRIC HEATING FILM AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2023/030484
Kind Code:
A1
Abstract:
Disclosed is a self-temperature-limiting electric heating film and a preparation method therefor. The self-temperature-limiting electric heating film comprises a substrate, an electric heating layer provided on the substrate, and two electrodes provided on the electric heating layer; the electric heating layer comprises a heating block and a temperature-limiting block that is connected to the heating block; the composition of the temperature-limiting block comprises titanate and a substance that contains a first doping element, and the temperature-limiting block is used for limiting the temperature of the electric heating film; the first doping element is a rare earth element; the substance containing the first doping element is a first doping element elementary substance or a compound that contains the first doping element. Compared with macromolecular temperature-limiting materials, the temperature-limiting block prepared and obtained in the present invention has advantages of having a simple preparation method, low costs, stable resistance at room temperature, not increasing along with an increase in current impact number, being capable of effectively prolonging the service life of the self-temperature-limiting electric heating film, and reducing unnecessary heating under a specific application scenario to reduce energy consumption, as well as having a simple structure, occupying a small space, and having high safety performance.
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| WO/2019/186314 | FLEXIBLE THERMOELECTRIC DEVICES |
Inventors:
ZHANG WEI (CN)
BAI NAN (CN)
BAI NAN (CN)
Application Number:
PCT/CN2022/116722
Publication Date:
March 09, 2023
Filing Date:
September 02, 2022
Export Citation:
Assignee:
ZHONGSHANG TECH BEIJING CO LTD (CN)
International Classes:
H01L35/02
Foreign References:
| CN114388684A | 2022-04-22 | |||
| CN113473657A | 2021-10-01 | |||
| CN113038641A | 2021-06-25 | |||
| CN104602375A | 2015-05-06 | |||
| US4072848A | 1978-02-07 |
Other References:
"Modern Electronic Technology Training Course", 31 August 2014, UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA PRESS, CN, ISBN: 978-7-312-03516-6, article YAO, YOUFENG: "Chapter 2 Common Electronic Components", pages: 15 - 16, XP009544245
"Principles and Applications of Optoelectronic Technology", 31 August 2016, NATIONAL DEFENSE INDUSTRY PRESS, CN, ISBN: 978-7-118-08980-6, article PEI, SHIXIN ET AL.: "Chapter 6 Optical Radiation Detection Principle and Technology", pages: 190 - 191, XP009544244
"Principles and Applications of Optoelectronic Technology", 31 August 2016, NATIONAL DEFENSE INDUSTRY PRESS, CN, ISBN: 978-7-118-08980-6, article PEI, SHIXIN ET AL.: "Chapter 6 Optical Radiation Detection Principle and Technology", pages: 190 - 191, XP009544244
Attorney, Agent or Firm:
XI'AN DIYEXIN INTELLECTUAL PROPERTY LAW OFFICE (CN)
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