Invention Grant
- Patent Title: Charge control device
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Application No.: US14556698Application Date: 2014-12-01
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Publication No.: US09778321B2Publication Date: 2017-10-03
- Inventor: Takuya Umemura , Tadahiko Kobayakawa , Hiroki Uesugi , Hiroshi Hanai
- Applicant: MAKITA CORPORATION
- Applicant Address: JP Anjo-shi
- Assignee: MAKITA CORPORATION
- Current Assignee: MAKITA CORPORATION
- Current Assignee Address: JP Anjo-shi
- Agency: Oliff PLC
- Priority: JP2013-247809 20131129
- Main IPC: H02J7/00
- IPC: H02J7/00 ; H02J7/04 ; H02J7/16 ; G01R31/36 ; H01M10/44 ; H01M10/48 ; H01M10/0525

Abstract:
A charge control device includes a voltage detector that detects a voltage of a battery, a temperature detector that detects a battery temperature, a voltage setting unit that sets at least one of a charge completion voltage and an abnormality determination voltage to a high temperature time voltage that is lower than a normal voltage when the battery temperature detected by the temperature detector is or is above a high temperature determination threshold set in advance, and a charging current limiting unit that reduces a charging current a charger supplies to the battery when the battery temperature is in a temperature range between a set temperature that is lower by a predetermined temperature than the high temperature determination threshold and the high temperature determination threshold and the battery voltage detected by the voltage detector is in a voltage range between the normal voltage and the high temperature time voltage.
Public/Granted literature
- US20150153416A1 CHARGE CONTROL DEVICE Public/Granted day:2015-06-04
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