Title:
WORK MACHINE AND WORK MACHINE SYSTEM
Document Type and Number:
WIPO Patent Application WO/2023/219129
Kind Code:
A1
Abstract:
Provided are a work machine and a work machine system with improved workability. In this work machine, when a connected battery pack is a battery pack capable of 18/36 V switching, a charge/discharge circuit 400 allows discharging from the connected battery pack to a motor 14, and charging to the connected battery pack. When the connected battery pack is an 18 V battery pack, the charge/discharge circuit 400 prohibits discharging from the connected battery pack to the motor 14, and allows charging to the connected battery pack. When the connected battery pack is a 36 V battery pack, the charge/discharge circuit 400 allows discharging from the connected battery pack to the motor 14, and prohibits charging to the connected battery pack. 18/36 V switching circuits 121, 122 make it possible to switch between a first state in which a voltage across terminals of battery packs 67, 68 is a first voltage value (36 V), and a second state in which the voltage across terminals of the battery packs 67, 68 is a second voltage value (18 V).
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Inventors:
SUDO TOMOAKI (JP)
HOSHINO KENICHI (JP)
NAKANO YASUSHI (JP)
HOSHINO KENICHI (JP)
NAKANO YASUSHI (JP)
Application Number:
PCT/JP2023/017715
Publication Date:
November 16, 2023
Filing Date:
May 11, 2023
Export Citation:
Assignee:
KOKI HOLDINGS CO LTD (JP)
International Classes:
H02J7/34; H02J7/00
Domestic Patent References:
| WO2021220704A1 | 2021-11-04 | |||
| WO2018079725A1 | 2018-05-03 | |||
| WO2016185748A1 | 2016-11-24 |
Foreign References:
| JP2021191113A | 2021-12-13 |
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