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:
Jul. 18, 2023

Filed:

Jun. 17, 2019
Applicant:

Shenzhen Sunlord Electronics Co., Ltd., Guangdong, CN;

Inventors:

Xinshu Yu, Guangdong, CN;

Shengcheng Xia, Guangdong, CN;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C 45/02 (2006.01); B29C 45/00 (2006.01); H01F 27/30 (2006.01);
U.S. Cl.
CPC ...
B29C 45/02 (2013.01); B29C 45/0013 (2013.01); H01F 27/30 (2013.01); B29K 2995/0008 (2013.01);
Abstract

Disclosed are a transfer-molded inductor and a manufacturing method thereof. The inductor comprises a magnet formed by transfer molding with a soft magnetic colloid; and a prefabricated coil assembly comprising an air-core coil and electrode sheets connected at two ends of the air-core coil. The method comprises steps of: connecting a prefabricated air-core coil and an electrode sheet by welding to form a coil assembly, and placing the coil assembly in a cavity of a mold; performing transfer molding with a soft magnetic colloid in a gelatinous state so that the coil is entirely buried in the colloid while the electrode sheets at two ends of the air-core coil are at least partially exposed outside the colloid to serve as terminal electrodes; and performing demolding after the colloid is cured to form a magnet, and finishing the terminal electrodes to obtain the inductor.


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