US 12,218,566 B2
Tension structure and drum motor
Shanyao Ke, Guangdong (CN); and Weiqun Xie, Guangdong (CN)
Assigned to SUZHOU ZHAOWEI INDUSTRIAL TECHNOLOGY CO., LTD., Jiangsu (CN); and SHENZHEN ZHAOWEI MACHINERY & ELECTROICS CO., LTD., Guangdong (CN)
Appl. No. 18/714,429
Filed by SUZHOU ZHAOWEI INDUSTRIAL TECHNOLOGY CO., LTD., Jiangsu (CN); and SHENZHEN ZHAOWEI MACHINERY & ELECTRONICS CO., LTD., Guangdong (CN)
PCT Filed Jun. 27, 2023, PCT No. PCT/CN2023/102605
§ 371(c)(1), (2) Date May 29, 2024,
PCT Pub. No. WO2024/169101, PCT Pub. Date Aug. 22, 2024.
Claims priority of application No. 202310151068.9 (CN), filed on Feb. 15, 2023.
Prior Publication US 2024/0421660 A1, Dec. 19, 2024
Int. Cl. H02K 7/14 (2006.01)
CPC H02K 7/14 (2013.01) 13 Claims
OG exemplary drawing
 
1. A tension structure for connecting a drive part with a rotating part, the tension structure being configured to drive the rotating part to rotate about a rotation axis under a driving of the drive part, and the tension structure comprising:
a first connection part, in transmission connection with the drive part;
a limit part, comprising a bottom wall and a side wall arranged at a periphery of the bottom wall, wherein the side wall defines therein installation slots; and the bottom wall is detachably connected to the first connection part to enable the side wall to sleeve outside the first connection part;
tension parts, engaged with the installation slots, respectively, wherein a side of each of the tension parts facing away from the first connection part protrudes from a corresponding installation slot and presses against the rotating part;
the side wall comprises a plurality of convex columns which are spaced apart from adjacent ones, sides of each of the plurality of convex columns facing toward adjacent convex columns are provided with grooves, respectively, and each of the grooves and an opposite groove form an installation slot having an installation port; and
each of the tension parts comprises limit bosses spacedly arranged at two sides thereof; and the limit bosses are engaged with corresponding grooves, and the tension parts are inserted into the installation slots through the installation ports, respectively.