Invention Grant
- Patent Title: Electrically-driven working apparatus and method for protecting battery of electrically-driven working apparatus
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Application No.: US16181449Application Date: 2018-11-06
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Publication No.: US10784676B2Publication Date: 2020-09-22
- Inventor: Hiroki Uesugi , Takuya Umemura , Takayoshi Endo , Masafumi Noda
- 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: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@37c754ec
- Main IPC: H02H7/18
- IPC: H02H7/18 ; H02J7/00 ; H02H3/04 ; H02H3/05

Abstract:
An electrically-driven working apparatus in one aspect of an embodiment of the present disclosure comprises: a battery; an abnormality detection unit; a power supply path; a first disconnection unit; a second disconnection unit; and a control unit. The control unit activates the first disconnection unit to disconnect the power supply path if either of an overload or an over discharge of the battery is detected by the abnormality detection unit, and subsequently determines whether discharge from the battery has stopped after activating the first disconnection unit, and activates the second disconnection unit to disconnect the power supply path if discharge from the battery has not stopped.
Public/Granted literature
Information query