公开(公告)号：US20140169615A1

公开(公告)日：2014-06-19

申请号：US14115444

申请日：2012-05-03

Applicant: Kim Kristiansen ,  Flemming Buus Bendixen ,  Troels Bogsted Brøndbjerg

Inventor： Kim Kristiansen ,  Flemming Buus Bendixen ,  Troels Bogsted Brøndbjerg

IPC: H04R1/00

CPC classification number: H04R1/00 ,  H04R9/025 ,  H04R2209/021

Abstract: An electromagnetic drive unit for a loudspeaker of the type where an air gap is arranged in a magnet system such that magnetic flux lines are substantially linear across the air gap, and that a voice coil is arranged in said air gap, wherein the magnet system comprises a central yoke separated by said air gap from a ring-shaped magnet system, which magnet system at least comprises a bottom plate connected to said central yoke, and a magnet and a top plate, characterised in that at least a section of the central yoke corresponding to the extent of the air gap and at least a corresponding section of the top plate is made from a soft magnetic composite material.

Abstract translation: 一种用于扬声器的电磁驱动单元，其中气隙布置在磁体系统中，使得磁通线在气隙上基本上线性，并且音圈布置在所述气隙中，其中磁体系统包括 由所述气隙与环形磁体系统隔开的中心磁轭，所述磁体系统至少包括连接到所述中心磁轭的底板，以及磁体和顶板，其特征在于，所述中心磁轭的至少一部分 对应于气隙的程度，并且顶板的至少相应的部分由软磁性复合材料制成。

公开(公告)号：US09036859B2

公开(公告)日：2015-05-19

申请号：US14115444

申请日：2012-05-03

Applicant: Kim Kristiansen ,  Flemming Buus Bendixen ,  Troels Bogsted Brøndbjerg

Inventor： Kim Kristiansen ,  Flemming Buus Bendixen ,  Troels Bogsted Brøndbjerg

IPC: H04R25/00 ,  H04R1/00 ,  H04R9/02

CPC classification number: H04R1/00 ,  H04R9/025 ,  H04R2209/021

Abstract: An electromagnetic drive unit for a loudspeaker of the type where an air gap is arranged in a magnet system such that magnetic flux lines are substantially linear across the air gap, and that a voice coil is arranged in said air gap, wherein the magnet system comprises a central yoke separated by said air gap from a ring-shaped magnet system, which magnet system at least comprises a bottom plate connected to said central yoke, and a magnet and a top plate, characterized in that at least a section of the central yoke corresponding to the extent of the air gap and at least a corresponding section of the top plate is made from a soft magnetic composite material.

Abstract translation: 一种用于扬声器的电磁驱动单元，其中气隙布置在磁体系统中，使得磁通线在气隙上基本上线性，并且音圈布置在所述气隙中，其中磁体系统包括 由所述气隙与环形磁体系统隔开的中心磁轭，所述磁体系统至少包括连接到所述中心磁轭的底板，以及磁体和顶板，其特征在于，所述中心磁轭的至少一部分 对应于气隙的程度，并且顶板的至少相应的部分由软磁性复合材料制成。