Title:
電池パックおよび電動自転車
Document Type and Number:
Japanese Patent JP5858457
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a battery pack having stabilized characteristics which are not affected by rainy weather and dew formation, and to provide an electric bicycle using the same.SOLUTION: The battery pack has compartments 601, 602 for housing two battery coupling structures each mounting a plurality of flat cells, and a compartment 603 for housing a protective circuit board which protects the cells during charge and discharge. A drainage hole 682 is provided in the bottom of the battery pack, and a drainage hole 681 is also provided in an upper compartment 680 to which the protective circuit board is attached, thus avoiding harmful effect due to moisture.
Inventors:
Toru Suzuki
Application Number:
JP2011078304A
Publication Date:
February 10, 2016
Filing Date:
March 31, 2011
Export Citation:
Assignee:
NEC Energy Device Co., Ltd.
International Classes:
H01M2/10
Domestic Patent References:
| JP2006196277A |
Attorney, Agent or Firm:
Akira Yonezawa
Teiji Tanaka
Takashi Koyama
Teiji Tanaka
Takashi Koyama
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