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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.:

US 11454459 B1

PDFFull Text
Date of Patent:
Sep. 27, 2022

Filed:

Jan. 05, 2021

Heat-sink base provided with heat-sink fin portions, method for producing same and motor provided with same

Applicant:

Atieva, Inc., Redwood City, CA (US);

Inventor:

Chia-Ming Chuang, Taipei, TW;

Assignee:

Atieva, Inc., Newark, CA (US);

Attorney:

Brake Hughes Bellermann LLP

Primary Examiner:

Thomas Truong

Int. Cl.
CPC ...
H02K 5/18 (2006.01); F28F 3/00 (2006.01); H02K 15/14 (2006.01); B22C 9/02 (2006.01); B22C 9/04 (2006.01); B22D 19/00 (2006.01); B22D 19/04 (2006.01); H02K 9/22 (2006.01); B23P 15/26 (2006.01); H02K 5/20 (2006.01);
U.S. Cl.
CPC ...
F28F 3/00 (2013.01); B22C 9/02 (2013.01); B22C 9/046 (2013.01); B22D 19/0054 (2013.01); B22D 19/04 (2013.01); H02K 5/18 (2013.01); H02K 9/227 (2021.01); H02K 15/14 (2013.01); B23P 15/26 (2013.01); B23P 2700/10 (2013.01); H02K 5/203 (2021.01); H02K 5/207 (2021.01); Y10T 29/4935 (2015.01);
Abstract

A heat-sink base provided with heat-sink fin portions, a manufacturing method and a motor provided with the heat-sink base. The base is produced by pouring cast metal into a mold cavity to replace a pattern having a predetermined sublimation temperature. The base includes a preformed heat-sink member comprising a plurality of heat-sink fin portions and at least one anchor portion embedded at least partially in the pattern, and a base body comprising an enclosed base portion and a holder portion for receiving and holding the at least one anchor portion. By virtue of the invented method, the heat-sink member having an extremely thin thickness can be mounted on the base body and the overall surface area of the heat-sink base is increased considerably.

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