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.

Date of Patent:
Feb. 18, 2025

Filed:

Mar. 01, 2023
Applicant:

Nanjing Chervon Industry Co., Ltd., Nanjing, CN;

Inventors:

Masatoshi Fukinuki, Nanjing, CN;

Guoming Tong, Nanjing, CN;

Rui Zhan, Nanjing, CN;

Xiang Zhao, Nanjing, CN;

Pengpeng Xue, Nanjing, CN;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B25F 5/00 (2006.01); H02K 5/20 (2006.01); H02K 5/22 (2006.01); H02K 7/14 (2006.01); H02K 9/06 (2006.01); B25F 3/00 (2006.01);
U.S. Cl.
CPC ...
B25F 5/008 (2013.01); H02K 5/207 (2021.01); H02K 5/225 (2013.01); H02K 7/145 (2013.01); H02K 9/06 (2013.01); B25F 3/00 (2013.01); B25F 5/006 (2013.01);
Abstract

A power tool includes a power mechanism including a drive shaft; an oscillating mechanism; an airflow element connected to the drive shaft; a heat conducting portion supported on the drive shaft, where the airflow element is disposed on the heat conducting portion. The oscillating mechanism includes a support assembly sleeved on the drive shaft and an oscillating member. Heat generated by the oscillating mechanism is conducted to the heat conducting portion through the drive shaft, the heat conducting portion has a thermal conductivity greater than or equal to 50 W/m·° C., and a ratio of an axial distance Lof a portion of the heat conducting portion in contact with the drive shaft to a distance Lof a thermally conductive portion of the drive shaft between the heat conducting portion and the support assembly is greater than or equal to 0.1 and less than or equal to 5.


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