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:
Nov. 07, 2017
Filed:
Sep. 20, 2012
Hangzhou Hpwinner Opto Corporation, Zhejiang, CN;
HANGZHOU HPWINNER OPTO CORPORATION, Hangzhou, Zhejiang, CN;
Abstract
A lamp-housing-type heat-sink in an LED lighting device is provided, which is a hollow middle part formed monolithically by extending a high purity aluminum plate with a thickness of 0.5 mm to 5 mm and an aluminum content of above 95%. The heat-sink has a heat-sinking surface and housing body. A surface contact structure is formed between the heat-sinking surface and a circuit board, and several radiating holes are set on the housing body to form heat dissipation channels. A method for manufacturing the lamp-housing-type heat-sink in LED lighting device is also provided. The lamp-housing-type heat-sink uses fewer materials and costs less than conventional die-cast aluminum housing, while providing a higher thermal conductivity co-efficient.