公开(公告)号：US20210193377A1

公开(公告)日：2021-06-24

申请号：US17192523

申请日：2021-03-04

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Jianquan Lou ,  Xiaoxia Zhou ,  Hailong Zhang ,  Yingchun Shu ,  Alpesh U. Bhobe

IPC: H01F27/34 ,  H01F27/28 ,  H01F27/24 ,  H01R24/64 ,  H01F27/29 ,  H01R13/719 ,  H01F27/02

Abstract: In one embodiment, an apparatus includes an array of transformers and common mode chokes each comprising a magnetic core and windings wound around the magnetic core at opposing locations on the magnetic core, and a retaining groove on each of the magnetic cores to maintain the windings in their opposing locations on the magnetic core. The transformers and common mode chokes are positioned in the array with the windings on each of the magnetic cores located offset to the windings of adjacent magnetic cores in the array to reduce crosstalk and improve common mode noise rejection.

公开(公告)号：US20190387650A1

公开(公告)日：2019-12-19

申请号：US16008203

申请日：2018-06-14

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Xiaoxia Zhou ,  Hailong Zhang ,  Jianquan Lou ,  Huasheng Zhao ,  Luli Gong ,  Yonghong Luo

IPC: H05K9/00 ,  G02B6/42 ,  H05K7/20

Abstract: In one embodiment, an apparatus includes a housing for receiving pluggable modules, the housing comprising at least one lower opening and at least one upper opening, each of the openings configured to receive one of the pluggable modules, and a heat sink interposed between the lower and upper openings. The heat sink comprises a cross-sectional honeycomb structure defining cooling tubes extending longitudinally between parallel surfaces of the heat sink for dissipating heat from the pluggable modules inserted into the lower and upper openings.

公开(公告)号：US10321553B2

公开(公告)日：2019-06-11

申请号：US14451360

申请日：2014-08-04

Applicant: Cisco Technology, Inc.

Inventor： Hailong Zhang ,  Xiaoxia Zhou ,  Jinghan Yu ,  Philippe Sochoux ,  Xiao Li ,  Alpesh Bhobe

IPC: H05K1/02 ,  H05K9/00 ,  H01R43/00

Abstract: An apparatus is described for suppressing EMI emissions in an electrical device. In one example, the apparatus includes absorbing material surrounding at least a portion of an electrical component and electrically conductive material configured to contact at least one side of the absorbing material.

公开(公告)号：US09905354B2

公开(公告)日：2018-02-27

申请号：US14975217

申请日：2015-12-18

Applicant: Cisco Technology, Inc.

Inventor： Jianquan Lou ,  Quanhui Sun ,  Xiaoxia Zhou ,  Alpesh U. Bhobe ,  Jinghan Yu ,  Yingchun Shu

IPC: H01F27/28 ,  H01R13/66 ,  H01F27/24 ,  H05K5/00

CPC classification number: H01F27/24 ,  H01F27/2828 ,  H01F27/38 ,  H01F27/40 ,  H01F2017/0093 ,  H05K5/0026

Abstract: An electrical device includes a core structure having a first core section, a second core section, and a third core section. The electrical device further includes a first coil electrically coupled to the first core section and the second core section to form a choke and a primary winding of a transformer. The choke is configured to reduce common mode noise for an electrical signal received by the electrical device, and the primary winding of the transformer is configured to induce a magnetic field on the third core section. The electrical device also includes a second coil electrically coupled to the third core section, which forms a secondary winding of the transformer and receives electromagnetic energy from the magnetic field induced by the primary winding of the transformer.

公开(公告)号：US20170178783A1

公开(公告)日：2017-06-22

申请号：US14975217

申请日：2015-12-18

Applicant: Cisco Technology, Inc.

Inventor： Jianquan Lou ,  Quanhui Sun ,  Xiaoxia Zhou ,  Alpesh U. Bhobe ,  Jinghan Yu ,  Yingchun Shu

IPC: H01F27/24 ,  H05K5/00 ,  H01F27/28

CPC classification number: H01F27/24 ,  H01F27/2828 ,  H01F27/38 ,  H01F27/40 ,  H01F2017/0093 ,  H05K5/0026

Abstract: An electrical device includes a core structure having a first core section, a second core section, and a third core section. The electrical device further includes a first coil electrically coupled to the first core section and the second core section to form a choke and a primary winding of a transformer. The choke is configured to reduce common mode noise for an electrical signal received by the electrical device, and the primary winding of the transformer is configured to induce a magnetic field on the third core section. The electrical device also includes a second coil electrically coupled to the third core section, which forms a secondary winding of the transformer and receives electromagnetic energy from the magnetic field induced by the primary winding of the transformer.