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公开(公告)号：US20210225350A1
公开(公告)日：2021-07-22
申请号：US16759312
申请日：2018-06-06
Applicant: BYD COMPANY LIMITED
Inventor： Yaxuan SUN , Yongji ZHAO
IPC: G10K11/175
Abstract: The present disclosure provides an active noise reduction method, a system, and a new energy vehicle. The active noise reduction method includes: 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.
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公开(公告)号：US20200269775A1
公开(公告)日：2020-08-27
申请号：US15781031
申请日：2016-12-21
Applicant: BYD COMPANY LIMITED
Inventor： Xinping LIN , Min ZHANG , Yaxuan SUN , Mingshuang ZHOU
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.
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公开(公告)号：US20180319969A1
公开(公告)日：2018-11-08
申请号：US15781304
申请日：2016-12-21
Applicant: BYD COMPANY LIMITED
Inventor： Min ZHANG , Xinping LIN , Yaxuan SUN , Mingshuang ZHOU , Xiong ZHOU
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.
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公开(公告)号：US20180317342A1
公开(公告)日：2018-11-01
申请号：US15769589
申请日：2016-10-28
Applicant: BYD COMPANY LIMITED
Inventor： Qing GONG , Yaxuan SUN , Xinping LIN , Shuming ZHAO , Bo WU , Jingjing LUO , Donghai CHENG
IPC: H05K7/20 , H01L23/473
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
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