公开(公告)号：EP3703048A1

公开(公告)日：2020-09-02

申请号：EP18871704.5

申请日：2018-06-06

Applicant: BYD Company Limited

Inventor： SUN, Yaxuan ,  ZHAO, Yongji

IPC: G10K11/178 ,  G10K11/175 ,  F01N1/00 ,  B60R16/037

Abstract: To resolve problems that a manner of performing high-frequency noise reduction by constructing a harmonic signal is relatively monotonous, and that there is still space for further improvement of sound quality of an acoustic environment thereof, the present invention provides an active noise reduction method, a system, and a new energy vehicle. According to an aspect of the present invention, an active noise reduction method is provided, including the following steps: obtaining a frequency of a high-frequency noise signal in an acoustic environment, constructing and generating a harmonic masking signal according to the frequency of the high-frequency noise signal, where the harmonic masking signal includes a harmonic signal and a masking signal, and the harmonic signal is a subharmonic wave of the high-frequency noise signal, and inputting the harmonic masking signal into a sound playback apparatus for playback to output a noise reduction construction sound, and performing noise reduction on the acoustic environment. According to the active noise reduction method disclosed by the present invention, the sound quality of the acoustic environment may be further improved. In addition, the method is simple and easy to operate and has low costs.

公开(公告)号：EP3394172A1

公开(公告)日：2018-10-31

申请号：EP16877738.1

申请日：2016-12-21

Applicant: BYD Company Limited

Inventor： ZHANG, Min ,  LIN, Xinping ,  SUN, Yaxuan ,  ZHOU, Mingshuang ,  ZHOU, Xiong

IPC: C08L23/16 ,  C08L91/06 ,  C08L51/04 ,  C08K13/06 ,  C08K9/06 ,  C08K3/26 ,  C08K3/34 ,  C08K3/30

CPC classification number: C08L23/16 ,  B60R13/08 ,  C08K3/26 ,  C08K3/30 ,  C08K3/34 ,  C08K5/0066 ,  C08K9/06 ,  C08K13/06 ,  C08K2003/385 ,  C08L23/06 ,  C08L51/06 ,  C08L91/00 ,  C08L91/06 ,  C08L2201/02 ,  C08L2205/025 ,  C08L2205/03 ,  C08L2205/08 ,  C08K3/12 ,  C08K3/06 ,  C08K3/22 ,  C08K5/3492

Abstract: A sound insulation composition and a sound insulation sheet for a vehicle are provided. The sound insulation composition includes 50 to 300 parts by weight of EPDM rubber, 10 to 300 parts by weight of mica powers, 10 to 300 parts by weight of dolomite, 2 to 15 parts by weight of a vulcanized agent, 3 to 60 parts by weight of a compatilizer, 30 to 300 parts by weight of a fire retardant, 0.2 to 3 parts by weight of a cross-linking agent, 10 to 80 parts by weight of a plasticizer, and 100 to 500 parts by weight of barium sulfate. The sound insulation sheet for the vehicle is made of the sound insulation composition mentioned above.

公开(公告)号：EP3394170A1

公开(公告)日：2018-10-31

申请号：EP16877739.9

申请日：2016-12-21

Applicant: BYD Company Limited

Inventor： LIN, Xinping ,  ZHANG, Min ,  SUN, Yaxuan ,  ZHOU, Mingshuang

IPC: C08L23/08 ,  C08L23/10 ,  C08L23/04 ,  C08L51/00 ,  C08L91/06 ,  C08K13/02 ,  C08K3/34 ,  C08K3/30 ,  C08K5/54 ,  C08K3/38 ,  C08K3/22 ,  C08K3/04

CPC classification number: C08L91/06 ,  B60R13/08 ,  C08K3/30 ,  C08K3/34 ,  C08K5/0066 ,  C08L23/04 ,  C08L23/08 ,  C08L23/16 ,  C08L31/04 ,  C08L51/003 ,  C08L91/00 ,  G10K11/162 ,  C08L23/0815 ,  C08L51/06 ,  C08K3/38 ,  C08K3/22 ,  C08K3/26

Abstract: A sound insulation composition and a sound insulation sheet for a vehicle are provided. The sound insulation composition includes 50 to 300 parts by weight of EVA, 10 to 300 parts by weight of mica powers, 10 to 300 parts by weight of dolomite, 10 to 50 parts by weight of thermoplastic resin, 10 to 100 parts by weight of a toughening agent, 3 to 60 parts by weight of a compatilizer, 30 to 300 parts by weight of a fire retardant, 10 to 80 parts by weight of a plasticizer, and 100 to 500 parts by weight of barium sulfate. The sound insulation sheet for the vehicle is made of the sound insulation composition mentioned above.

公开(公告)号：EP3351073A1

公开(公告)日：2018-07-25

申请号：EP16859087.5

申请日：2016-10-28

Applicant: BYD Company Limited

Inventor： GONG, Qing ,  SUN, Yaxuan ,  LIN, Xinping ,  ZHAO, Shuming ,  WU, Bo ,  LUO, Jingjing ,  CHENG, Donghai

IPC: H05K7/20

CPC classification number: H05K7/20254 ,  H01L23/3677 ,  H01L23/473 ,  H01L25/07 ,  H01L29/7393

Abstract: A base plate for a heat sink as well as a heat sink and an IGBT module having the same are provided. The base plate includes: a base plate body, including a body part; and a first surface layer and a second surface layer disposed respectively on two opposing surfaces of the body part; and N pins disposed on the first surface layer and spaced apart from one another, each pin having a first end fixed on the first surface layer and a second end configured as a free end, in which the first surface layer and the N pins are configured to contact a coolant, an area of a first portion of the first surface layer contacting the coolant is denoted as S1, and an area of a second portion of the first surface layer contacting each pin is denoted as S2, in which 180≤S1/S2≤800, and 300≤N