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:
Jan. 06, 2026
Filed:
Feb. 12, 2024
Fukuta Electric & Machinery Co., Ltd., Tongluo Township, Miaoli County, TW;
Chin-Feng Chang, Tongluo Township, Miaoli County, TW;
Chih-Meng Chu, Tongluo Township, Miaoli County, TW;
Chen-Hui Chang, Tongluo Township, Miaoli County, TW;
Chien-Hsun Chen, Tongluo Township, Miaoli County, TW;
FUKUTA ELECTRIC & MACHINERY CO., LTD., Tongluo Township, TW;
Abstract
The present disclosure pertains to a motor stator cooling structure comprising a stator core and two oil spray rings attached to both ends of the stator core, respectively. The stator core comprises a yoke and multiple core teeth extending inward from the yoke. Each of the core teeth internally forms a cooling fluid channel extending axially along the stator core. Each oil spray ring is designed with staggered oil outlet holes and oil guide grooves. The staggered arrangement of the two oil spray rings causes the oil outlet holes at both ends of the stator core to interlace. It allows the cooling fluid to enter the stator core from both ends simultaneously and in a staggered manner along the axial direction, achieving a uniform cooling effect and ameliorating localized high-temperature conditions in the motor stator.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile