公开(公告)号：US10337085B2

公开(公告)日：2019-07-02

申请号：US14731208

申请日：2015-06-04

Applicant: Huawei Technologies Co., Ltd.

Inventor： Wenwen Yuan ,  Banghong Hu ,  Naier Meng

IPC: C22C21/04 ,  B22D21/00 ,  C22C21/02

Abstract: Embodiments of the present invention provide a die casting aluminum alloy, including the following components in percentage by mass: 11.0% to 14.0% of silicon; 0.1% to 0.9% of manganese; 0.1% to 1.0% of magnesium; 0.3% to 1.4% of iron; less than or equal to 0.2% of copper; and aluminum and inevitable impurities. The die casting aluminum alloy has good formability, heat conductivity, and corrosion resistance, and certain mechanical properties, which can avoid problems of a low yield of die-casting fittings, burn-in caused by severe heat emission of a product, corrosion in a coastal environment, assembly difficulties caused by insufficient mechanical properties, severe deformation in a wind load condition, and the like, so as to satisfy requirements of global delivery of complex communications products.

公开(公告)号：US10143110B2

公开(公告)日：2018-11-27

申请号：US15971914

申请日：2018-05-04

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ming Cai ,  Banghong Hu ,  Longyu Li

IPC: H05K7/20 ,  H04M1/02 ,  G06F1/16 ,  G06F1/20

Abstract: Embodiments of the present disclosure provide a middle frame member including: a middle frame substrate body; a first metal layer, attached to a first area of the middle frame substrate body, where a coefficient of heat conductivity of the first metal layer is greater than a coefficient of heat conductivity of the middle frame substrate body, the first area includes all or a part of an outer surface of the middle frame substrate body, and the first metal layer is used to conduct, to the entire first metal and the middle frame substrate body, heat generated by at least one of the components that is in contact with or adjacent to the first metal layer; and a passivated insulation layer, attached to a surface of the first metal layer.