Title:
BATTERY PACK, WIRELESS POWER TRANSMISSION SYSTEM, AND HEARING AID
Document Type and Number:
WIPO Patent Application WO/2019/073877
Kind Code:
A1
Abstract:
This battery pack is provided with: a secondary battery having a battery positive electrode terminal and a battery negative electrode terminal; a coil member; and a circuit board electrically connected to the secondary battery and the coil member. The circuit board is provided with an external positive electrode terminal electrically connected to the battery positive electrode terminal. The external positive electrode terminal is disposed on the upper side of the coil member so that the external positive electrode terminal overlaps the coil member when the external positive electrode terminal is projected in the vertical direction, and the external positive electrode terminal is provided with a terminal pattern, and a space that partitions the terminal pattern. The plan-view area of the terminal pattern is 50 % of an outer shape area demarcated by the outer shape of a coil pattern of the coil member or more. The space continues from the plan-view inner side to a plan-view outer end edge, and is opened at the plan-view outer end edge.
Inventors:
SUEYOSHI TAIKI (JP)
TSUDA HISASHI (JP)
INOUE MASAMI (JP)
NAGAOKA NAOKI (JP)
MIZUTANI TORU (JP)
TSUDA HISASHI (JP)
INOUE MASAMI (JP)
NAGAOKA NAOKI (JP)
MIZUTANI TORU (JP)
Application Number:
PCT/JP2018/037017
Publication Date:
April 18, 2019
Filing Date:
October 03, 2018
Export Citation:
Assignee:
NITTO DENKO CORP (JP)
International Classes:
H01F38/14; H01M10/46; H02J7/00; H02J50/10; H04R25/00; H01M50/213
Foreign References:
| JP2014082054A | 2014-05-08 | |||
| JP2016213001A | 2016-12-15 | |||
| JP2014017920A | 2014-01-30 | |||
| JP2013038967A | 2013-02-21 | |||
| JP2008048482A | 2008-02-28 |
Attorney, Agent or Firm:
OKAMOTO, Hiroyuki et al. (JP)
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