Invention Grant
- Patent Title: System, method and apparatus for reducing the height of bipolar transmitters and/or receivers in electric vehicle charging
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Application No.: US14277514Application Date: 2014-05-14
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Publication No.: US10083792B2Publication Date: 2018-09-25
- Inventor: Michael Werner , Hanspeter Widmer
- Applicant: QUALCOMM Incorporated
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agency: Knobbe, Martens, Olson & Bear, LLP
- Main IPC: H01F38/14
- IPC: H01F38/14 ; H02J50/00 ; H02J50/10 ; H02J50/12 ; H02J50/70 ; H02J50/40 ; H01F27/36 ; H01F27/38 ; H02J5/00 ; H04B5/00 ; H02J7/02

Abstract:
Systems, methods and apparatuses for reducing the height of bipolar transmitters and/or receivers in electric vehicle charging and/or power transfer are described herein. One implementation may include an apparatus for wireless power transfer. The apparatus comprises a ferromagnetic layer comprising at least one portion having a reduced thickness. The apparatus further comprises a first coil having at least one portion countersunk into the at least one portion of the ferromagnetic layer having the reduced thickness. The apparatus further comprises a second coil overlapping the at least one countersunk portion of the first coil. The at least one portion having the reduced thickness comprises a recess in the ferromagnetic layer. The ferromagnetic layer comprises a first plurality of ferromagnetic tiles having a first thickness and the at least one portion having the reduced thickness comprises a second plurality of ferromagnetic tiles having the reduced thickness.
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