公开(公告)号：US20190338436A1

公开(公告)日：2019-11-07

申请号：US16474482

申请日：2017-12-08

Applicant: BYD COMPANY LIMITED

Inventor： Chongchong LIAO ,  Yu WANG ,  Liang CHEN

IPC: C25D11/12 ,  H05K5/04 ,  H05K5/06 ,  C22C21/00

Abstract: The present disclosure provides an aluminum alloy casing, a preparation method thereof and a personal electronic device. The aluminum alloy casing includes an aluminum alloy matrix and an oxide film layer, wherein the aluminum alloy matrix has a slit, the oxide film layer includes an inner anodic oxide film layer and an outer anodic oxide film layer, the inner anodic oxide film layer has inner anodic oxide film layer nanopores, the outer anodic oxide film layer has outer anodic oxide film layer nanopores, the inner anodic oxide film layer nanopores have a density of 200 to 550 pores/square micrometer, and the outer anodic oxide film layer nanopores have a density of 550 to 900 pores/square micrometer.

公开(公告)号：US20240017769A1

公开(公告)日：2024-01-18

申请号：US18373204

申请日：2023-09-26

Applicant: BYD COMPANY LIMITED

Inventor： Yi QUAN ,  Hao ZHONG ,  Junfei YAN ,  Yu WANG ,  Tengyong LIU

IPC: B62D21/15 ,  B62D21/03 ,  B62D25/04 ,  B62D25/14 ,  B62D25/20

CPC classification number: B62D21/152 ,  B62D21/03 ,  B62D25/04 ,  B62D25/145 ,  B62D25/2018

Abstract: A vehicle body frame includes: a front transverse beam, a first front longitudinal beam, and a second front longitudinal beam. The first front longitudinal beam and the second front longitudinal beam are disposed at an interval along a left-and-right direction, each of the first front longitudinal beam and the second front longitudinal beam includes a longitudinal-beam rear-section front portion and a longitudinal-beam rear-section rear portion connected to each other, the longitudinal-beam rear-section front portion is connected to the front transverse beam, and an upper surface of the longitudinal-beam rear-section front portion and an upper surface of the front transverse beam are located in a same plane.

公开(公告)号：US20190330755A1

公开(公告)日：2019-10-31

申请号：US16475311

申请日：2017-12-06

Applicant: BYD COMPANY LIMITED

Inventor： Chongchong LIAO ,  Yu WANG ,  Liang CHEN ,  Xiong XIONG

IPC: C25D11/08 ,  C25D11/12 ,  C25D11/16 ,  C25D11/22 ,  H05K5/04 ,  C25D9/04

Abstract: The present disclosure provides an aluminum alloy casing, a preparation method thereof, and a personal electronic device. The aluminum alloy casing includes an aluminum alloy matrix and an oxide film layer covering the surface of the aluminum alloy matrix, wherein the aluminum alloy matrix has a slit, the oxide film layer includes an inner anodic oxide film layer and an outer anodic oxide film layer, and the inner anodic oxide film layer has inner anodic oxide film layer nanopores; and the outer anodic oxide film layer has outer anodic oxide film layer nanopores.