Title:
BATTERY PACK AND ELECTRIC DEVICE USING BATTERY PACK
Document Type and Number:
WIPO Patent Application WO/2019/031274
Kind Code:
A1
Abstract:
According to the present invention, the startup/shutdown of circuits on an electric tool body side and the startup/shutdown of a microcomputer on a battery pack side are associated with each other. A battery pack 100 comprises: an LD terminal 168 that transmits a stop signal to an electric apparatus body to which the battery pack is attached; battery cells 146a-146e; a microcomputer 250a that monitors the load states of the battery cells; and a power supply circuit 221 for driving the microcomputer 250a. The battery pack 100 is provided with a power supply management circuit 222 that controls the startup and stop of the power supply circuit 221 to which an operation voltage VDD1 is supplied. Upon input of the voltage of the LD terminal 168, the power supply management circuit 222 stops the power supply circuit 221 and also shuts down the battery pack-side microcomputer 250a in association with shutdown of an apparatus-side microcomputer 60a. When the apparatus-side microcomputer 60a has been started up, the power supply management circuit 222 starts up the microcomputer 250a by operating the power supply circuit 221 so as to supply the operation voltage VDD1 to the microcomputer 250a.
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Inventors:
YAMAGUCHI SATOSHI (JP)
NAKANO YASUSHI (JP)
HANAWA HIROYUKI (JP)
FUNABASHI KAZUHIKO (JP)
NAKANO YASUSHI (JP)
HANAWA HIROYUKI (JP)
FUNABASHI KAZUHIKO (JP)
Application Number:
PCT/JP2018/028260
Publication Date:
February 14, 2019
Filing Date:
July 27, 2018
Export Citation:
Assignee:
KOKI HOLDINGS CO LTD (JP)
International Classes:
H02J7/00; B25F5/00; H01M10/48; H01M50/204; H01M50/247; H01M50/296
Domestic Patent References:
| WO2017043248A1 | 2017-03-16 | |||
| WO2017022169A1 | 2017-02-09 |
Foreign References:
| JP2015196196A | 2015-11-09 | |||
| JP2012039701A | 2012-02-23 | |||
| JP2014054703A | 2014-03-27 |
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