Title:
CHARGING SYSTEM, BATTERY PACK, AND PROTECTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/155270
Kind Code:
A1
Abstract:
A battery pack has: a battery cell; a measurement unit for measuring a physical quantity of the battery pack; a first input terminal to which charging current is supplied from a protection device; a state information generation unit for generating state information representing the measured physical quantity; and a first communication terminal from which the state information is output to the protection device. The protection device has: a first output terminal connected to the first input terminal and supplying the charging current from a power supply to the battery pack; the first communication terminal to which the state information output from the battery pack is input; an input terminal to which the charging current is supplied; a wire for connecting the input terminal and the first output terminal; a switch provided in the wire; and a control unit for opening and closing the switch on the basis of the physical quantity represented by the state information. The battery pack and the protection device are provided in mutually different housings.
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Inventors:
SASAKI HIROSHI (JP)
Application Number:
PCT/JP2018/004985
Publication Date:
August 30, 2018
Filing Date:
February 14, 2018
Export Citation:
Assignee:
NEC ENERGY DEVICES LTD (JP)
International Classes:
H02J7/00; H01M2/10; H01M10/42; H01M10/44; H01M10/48; H02H7/18; H02J7/02; H02J7/04
Domestic Patent References:
| WO2012026537A1 | 2012-03-01 |
Foreign References:
| JP2001283934A | 2001-10-12 | |||
| JP2007295728A | 2007-11-08 | |||
| JP2012010525A | 2012-01-12 | |||
| JP2016127698A | 2016-07-11 | |||
| JP2010232103A | 2010-10-14 |
Attorney, Agent or Firm:
HAYAMI Shinji (JP)
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