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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
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.
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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.
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公开(公告)号：EP4394802A1
公开(公告)日：2024-07-03
申请号：EP22915014.9
申请日：2022-12-29
Applicant: BYD Company Limited
Inventor： ZHU, Liang , GUO, Qiang , WEN, Danhua , DENG, Hong
Abstract: A conductive sheet, a conductive strip, and an electrical connector for a vehicle are disclosed. The conductive sheet includes a conductive sheet body, the conductive sheet body is a flat ribbon structure, and the conductive sheet body satisfies the following condition:
ω is the width of the conductive sheet body, measured in mm.
δ represents the thickness of the conductive sheet body, measured in mm.
represents a standard conductivity percentage of a pure copper material, and has a value of 100% IACS.
represents a conductivity percentage of the conductive sheet body, measured in % IACS.
k is 1.07% IACS/mm2.
The conductivity percentage of the conductive sheet body is 55% IACS to 80% IACS.
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