公开(公告)号：EP3954797A1

公开(公告)日：2022-02-16

申请号：EP20787920.6

申请日：2020-03-26

Applicant: BYD Company Limited

Inventor： LI, Yunchun ,  GUO, Qiang ,  REN, Youping ,  XIE, Yongliang

IPC: C22C21/08 ,  C22C1/02

Abstract: A die-cast aluminum alloy and a preparation method and use thereof are disclosed. Based on the total mass of the die-cast aluminum alloy, the die-cast aluminum alloy includes: 4-9 wt% of Mg; 1.6-2.8 wt% of Si; 1.1-2 wt% of Zn; 0.5-1.5 wt% of Mn; 0.1-0.3 wt% of Ti; 0.009-0.05 wt% of Be; the balance of Al; and less than 0.2 wt% of inevitable impurities.

公开(公告)号：EP3647440A1

公开(公告)日：2020-05-06

申请号：EP18822966.0

申请日：2018-04-25

Applicant: BYD Company Limited

Inventor： GUO, Qiang ,  XIE, Yongliang ,  LIAO, Mengjue

IPC: C22C1/02 ,  C22C1/03 ,  C22C21/04

Abstract: An aluminum alloy and a preparation method thereof are provided. The aluminum alloy of the present disclosure includes, in percentage by weight, 8-10% of silicon, 0.2-0.4% of magnesium, 0-0.01% of manganese, 0-0.01% of titanium, 0.1-0.3% of iron, 0.02-0.06% of boron, 0.15-0.3% of cerium, and 88.92-91.53% of aluminum.

公开(公告)号：EP3640356A1

公开(公告)日：2020-04-22

申请号：EP18818152.3

申请日：2018-04-25

Applicant: BYD Company Limited

Inventor： GUO, Qiang ,  CAO, Mengmeng ,  GONG, Quanyu

IPC: C22C23/06 ,  C22C23/02

Abstract: A magnesium alloy with high thermal conductivity, an inverter housing, an inverter and a vehicle are provided. Based on the total mass of the magnesium alloy with high thermal conductivity, the magnesium alloy with high thermal conductivity includes: 2.0-4.0 wt% of Al, 0.1-0.3 wt% of Mn, 1.0-2.0 wt% of La, 2.0-4.0 wt% of Ce, 0.1-1.0 wt% of Nd, 0.5-2.0 wt% of Zn, 0.1-0.5 wt% of Ca, less than 0.1 wt% of Sr, less than 0.1 wt% of Cu, and magnesium.

公开(公告)号：EP2819842B1

公开(公告)日：2018-09-12

申请号：EP12869479.1

申请日：2012-09-26

Applicant: Shenzhen BYD Auto R&D Company Limited ,  BYD Company Limited

Inventor： SUN, Jian ,  WU, Yanqin ,  GUO, Qiang ,  CHEN, Liang

IPC: B32B15/08 ,  B32B15/20 ,  B32B27/28 ,  B32B27/32 ,  B32B27/36 ,  B29C45/00 ,  B29C45/14 ,  C23F1/00 ,  C25D11/08 ,  C25D11/16 ,  C25D11/24 ,  B29K705/02 ,  B29L9/00 ,  B29K69/00 ,  B29K71/00 ,  B29K81/00 ,  B29K105/00 ,  B29K77/00

CPC classification number: C25D11/08 ,  B29C45/14311 ,  B29C2045/14868 ,  B29K2023/06 ,  B29K2069/00 ,  B29K2071/12 ,  B29K2077/00 ,  B29K2081/04 ,  B29K2105/0085 ,  B29K2105/0088 ,  B29K2705/02 ,  B29L2009/003 ,  B29L2009/005 ,  B32B15/08 ,  B32B15/20 ,  B32B27/286 ,  B32B27/32 ,  B32B27/365 ,  B32B2270/00 ,  B32B2311/24 ,  B32B2509/00 ,  B32B2605/08 ,  C25D11/16 ,  C25D11/24

Abstract: A method of preparing aluminum alloy-resin composite and an aluminum alloy-resin composite obtained by the same are provided. of the method comprises: S1: anodizing a surface of an aluminum alloy substrate to form an oxide layer on the surface, the oxide layer including nanopores; S2: immersing the resulting aluminum alloy substrate obtained in step S1 in a buffer solution having a pH of about 10 to about 13, to form a corrosion pores on an outer surface of the oxide layer; and S3: injection molding a resin onto the surface of the resulting aluminum alloy substrate obtained in step S2 in a mold to obtain the aluminum alloy-resin composite.

公开(公告)号：EP4550361A1

公开(公告)日：2025-05-07

申请号：EP23829662.8

申请日：2023-04-26

Applicant: BYD Company Limited

Inventor： ZHU, Liang ,  GUO, Qiang ,  WEN, Danhua

IPC: H01B5/02 ,  H01R25/16 ,  H01R31/08

Abstract: A conductive bar, a conductive bar assembly, and a vehicle electrical device system. The conductive bar is configured to be electrically connected between two electrical devices, and the conductive bar comprises at least one connecting section. The elastic modulus of the connecting section is E, the width of the connecting section is ω, the thickness of the connecting section is δ, and the thickness δ of the connecting section satisfies: λω 3 / E ≤ δ ≤ 10 λω 3 / E , wherein λ = 0.085 GPa/mm, the units of ω and δ are both mm, the unit of E is GPa, and E is in the range of 55 GPa to 120 GPa.

公开(公告)号：EP4394246A1

公开(公告)日：2024-07-03

申请号：EP22914316.9

申请日：2022-12-16

Applicant: BYD Company Limited

Inventor： ZHU, Liang ,  GUO, Qiang ,  WEN, Danhua ,  FANG, Bin ,  ZHANG, Siquan

IPC: F21S45/48

CPC classification number: F21S45/47 ,  F21W2107/1020180101 ,  F21S45/48 ,  F21V29/74 ,  F21V29/76

Abstract: A heat spreader and an illumination device including the heat spreader are disclosed. The heat spreader includes a first substrate and multiple first heat dissipation fins, the multiple first heat dissipation fins are arranged side by side on the first substrate at intervals in a first preset direction, and the heat spreader meets constraints of the following Relational expression 1: N∈{L/[ δ+9], L/[ δ+9]+2} and H∈δ1+δ2/2−1.2/tan2θ,δ1+δ2/2+1.2/tan2θ.L represents a length of the first substrate in the first preset direction, δ represents a weighted average thickness of the multiple first heat dissipation fins, N represents a distribution number of the first heat dissipation fins, δ1 represents a maximum thickness of the first heat dissipation fin, δ2 represents a minimum thickness of the first heat dissipation fin, θ represents a draft angle of the first heat dissipation fin, and H represents a distribution height of the first heat dissipation fin.

公开(公告)号：EP4170051A1

公开(公告)日：2023-04-26

申请号：EP21826605.4

申请日：2021-06-02

Applicant: BYD Company Limited ,  Huawei Technologies Co., Ltd.

Inventor： GONG, Qing ,  GUO, Qiang ,  WANG, Mengde ,  WANG, Hua ,  ZHAI, Yushan ,  LIU, Xiaorui ,  HU, Banghong ,  AN, Wei ,  FU, Jingsong

IPC: C22C21/02 ,  C22C1/02 ,  C22F1/043 ,  F28F21/08

Abstract: An aluminum alloy and a preparation method and application thereof are provided. The aluminum alloy includes, in percentages by weight: 9%-11% of Si, 0.001%-0.2% of Mg, 0.3%-0.7% of Fe, 0.003%-0.04% of Sr, 0.003%-0.03% of B, 0.001%-0.2% of Zn, 0.001%-0.1% of Cu, 0.001%-0.09% of Mn, less than 0.05% of Cr, 0.002%-0.05% of Ga, 0.001%-0.01% of Mo, and the balance of aluminum and other elements, wherein a total amount of the other elements is lower than 0.1%.

公开(公告)号：EP4067521A1

公开(公告)日：2022-10-05

申请号：EP20894656.6

申请日：2020-03-26

Applicant: BYD Company Limited

Inventor： GUO, Qiang ,  WANG, Mengde ,  AN, Wei

IPC: C22C21/02 ,  C22C1/02

Abstract: An aluminum alloy and a preparation method thereof are provided. In percentage by mass, the aluminum alloy includes: 8-11% of Si, 2-3% of Cu, 0.7-1.1% of Mg, 0.7-1.5% of Mn, 0.01-0.015% of Sr, 0.01-0.015% of Cr, 0-0.4% of Fe, 0.02-0.1% of Ti, 0.01-0.02% of Ga, 0.004-0.02% of B, 0-2% of Zn, and the balance of Al and less than 0.1% of other elements.

公开(公告)号：EP3734089A1

公开(公告)日：2020-11-04

申请号：EP18893647.0

申请日：2018-12-21

Applicant: BYD Company Limited

Inventor： GONG, Qing ,  GUO, Qiang ,  FANG, Bin ,  WANG, Mengde ,  AN, Wei

IPC: F16B39/24

Abstract: An anti-loosening washer (100) for a threaded connector (200) and a fabrication method thereof are provided. The anti-loosening washer (100) includes an upper washer (1) and a lower washer (2). A plurality of first ratchet teeth (3) distributed in a fan shape are disposed at the bottom of the upper washer (1), and a plurality of second ratchet teeth (4) engaged with the first ratchet teeth (3) are disposed on the top of the lower washer (2). The first ratchet tooth (3) has a wide surface (31) attached to the second ratchet tooth (4) and a narrow surface (32) with an area less than an area of the wide surface (31). The wide surface (31) is a spiral surface formed through a spiral motion performed by a generatrix (12) spaced apart from an axis (11a) around the axis (11a) by using a central axis (11) of the upper washer (1) as the axis (11a). A lead angle of a wire (13) at a middle diameter position of the spiral surface is greater than a lead angle of the threaded connector (200).

公开(公告)号：EP3550159A1

公开(公告)日：2019-10-09

申请号：EP17875266.3

申请日：2017-10-25

Applicant: BYD Company Limited

Inventor： GUO, Qiang ,  LI, Weiguo ,  WEN, Danhua

IPC: F16B7/18 ,  B60N2/68

Abstract: The present invention discloses a connecting assembly and a manufacturing method thereof, a seat and a vehicle. The connecting assembly includes: a connecting pipe, an inner wall of at least one end of the connecting pipe being provided with a pre-embedded nut, and the nut being coaxial with the connecting pipe; a connecting plate, the connecting plate being provided with a fixing hole; and a fastener, the fastener penetrating through the fixing hole and being in threaded fit with the nut. The connecting pipe is a light alloy component, and the connecting plate is a steel component. According to the connecting assembly disclosed by the present invention, the connecting pipe is the light alloy component, the inner wall of at least one end of the connecting pipe is provided with the pre-embedded nut, and the fastener sequentially penetrates through the fixing hole on the connecting plate of a steel material and is in threaded fit with the nut at one end of the connecting pipe, thereby realizing connection between the connecting plate of the steel material and the connecting pipe of the light alloy material, solving the problem of connection between the light alloy component and the steel component, and facilitating extensive use of the light alloy component.