The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 14, 2026
Filed:
Aug. 03, 2021
Shenzhen First Union Technology Co., Ltd., Shenzhen City, CN;
Jiamao Luo, Shenzhen City, CN;
Zuqiang Qi, Shenzhen City, CN;
Baoling Lei, Shenzhen City, CN;
Ruilong Hu, Shenzhen City, CN;
Zhongli Xu, Shenzhen City, CN;
Yonghai Li, Shenzhen City, CN;
SHENZHEN FIRST UNION TECHNOLOGY CO., LTD., Shenzhen, CN;
Abstract
A heater includes a base body, a conductive module, and an infrared electrothermal coating. The conductive module includes a first electrode and a second electrode spaced on the base body. The first electrode includes a first bar electrode axially extending from a first end to a second end, the second electrode includes a second bar electrode axially extending from the first end to the second end, and at least a part of the infrared electrothermal coating is located between the first bar electrode and the second bar electrode. An equivalent resistance of a part of the infrared electrothermal coating adjacent to the first end is less than an equivalent resistance of a middle part of the infrared electrothermal coating. An equivalent resistance of a part of the infrared electrothermal coating adjacent to the second end is less than the equivalent resistance of the middle part of the infrared electrothermal coating.