Title:
BATTERY PACK
Document Type and Number:
WIPO Patent Application WO/2021/153276
Kind Code:
A1
Abstract:
A battery pack (101) comprises: a plurality of assembled batteries (20) installed in a housing (10); acquisition devices (30) that each acquire battery information from the assembled battery (20) corresponding thereto; and a monitoring device (40) that communicates wirelessly with the acquisition devices (30). The monitoring device (40) is provided with a master unit antenna (46), and each of the acquisition devices (30) is provided with a slave unit antenna (36). On each of the assembled batteries (20), a protruding portion (23) having a conductive connection portion (24) electrically connecting battery cells (22) is formed. Hereafter, the direction in which the protruding portion (23) protrudes is defined as a protruding direction (Z+). In the housing (10), at least a part of each of the slave unit antennas (36) is disposed farther in the protruding direction (Z+) than an end (24z) in the protruding direction (Z+) of each of the conductive connection portions (24), and a direct wave (Rd) transmitted from the master unit antenna (46) reaches each of the slave unit antennas (36) and is received without being cut off by the conductive connection portion (24).
Inventors:
NUMATA TATSUHIRO (JP)
KAWAHARA SHINGO (JP)
AOKI KOUSUKE (JP)
JYO TAKAHIRO (JP)
KAWAHARA SHINGO (JP)
AOKI KOUSUKE (JP)
JYO TAKAHIRO (JP)
Application Number:
PCT/JP2021/001286
Publication Date:
August 05, 2021
Filing Date:
January 15, 2021
Export Citation:
Assignee:
DENSO CORP (JP)
International Classes:
H01M10/48; H01M50/20; H01M50/50; H02J7/00
Domestic Patent References:
| WO2014103003A1 | 2014-07-03 |
Foreign References:
| JP2010142083A | 2010-06-24 | |||
| US20180241094A1 | 2018-08-23 | |||
| JP6514694B2 | 2019-05-15 |
Attorney, Agent or Firm:
YAMADA, Tsuyoshi (JP)
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