A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
To cool a first heat exchanger and a second heat exchanger in a compact layout, and to utilize one of winds used for cooling of the first heat exchanger and the second heat exchanger effectively.SOLUTION: A hydraulic shovel serving as an electrically-driven work machine includes: an electric motor; an electric device connected to the electric motor through an electric power supply path; a first heat exchanger which cools a refrigerant passing through the electric device; a hydraulic pump which is driven by the electric motor and discharges a working fluid; a second heat exchanger which cools the working fluid; a fan; and a first passage part and a second passage part. The first passage part has, at one end, a first passage one end side opening. The second passage part has, at one end, a second passage one end side opening. The first passage one end side opening is located at a passage of a wind generated by driving of the fan and traversing the first heat exchanger. The second passage one end side opening is located at a passage of wind generated by driving of the fan and traversing the second heat exchanger.SELECTED DRAWING: Figure 8
【課題】コンパクトなレイアウトで第１熱交換器および第２熱交換器を冷却する。第１熱交換器および第２熱交換器の冷却に用いる風のいずれかを有効利用する。【解決手段】電動式作業機械としての油圧ショベルは、電動モータと、電動モータと電力供給経路を介してつながる電気機器と、電気機器を通る冷媒を冷却する第１熱交換器と、電動モータによって駆動されて作動油を吐出する油圧ポンプと、作動油を冷却する第２熱交換器と、ファンと、第１流路部および第２流路部と、を備える。第１流路部は、一端部に、第１流路一端部側開口部を有する。第２流路部は、一端部に、第２流路一端部側開口部を有する。第１流路一端部側開口部は、ファンの駆動によって発生して第１熱交換器を横切る風の流路に位置する。第２流路一端部側開口部は、ファンの駆動によって発生して第２熱交換器を横切る風の流路に位置する。【選択図】図８
To cool a first heat exchanger and a second heat exchanger in a compact layout, and to utilize one of winds used for cooling of the first heat exchanger and the second heat exchanger effectively.SOLUTION: A hydraulic shovel serving as an electrically-driven work machine includes: an electric motor; an electric device connected to the electric motor through an electric power supply path; a first heat exchanger which cools a refrigerant passing through the electric device; a hydraulic pump which is driven by the electric motor and discharges a working fluid; a second heat exchanger which cools the working fluid; a fan; and a first passage part and a second passage part. The first passage part has, at one end, a first passage one end side opening. The second passage part has, at one end, a second passage one end side opening. The first passage one end side opening is located at a passage of a wind generated by driving of the fan and traversing the first heat exchanger. The second passage one end side opening is located at a passage of wind generated by driving of the fan and traversing the second heat exchanger.SELECTED DRAWING: Figure 8
【課題】コンパクトなレイアウトで第１熱交換器および第２熱交換器を冷却する。第１熱交換器および第２熱交換器の冷却に用いる風のいずれかを有効利用する。【解決手段】電動式作業機械としての油圧ショベルは、電動モータと、電動モータと電力供給経路を介してつながる電気機器と、電気機器を通る冷媒を冷却する第１熱交換器と、電動モータによって駆動されて作動油を吐出する油圧ポンプと、作動油を冷却する第２熱交換器と、ファンと、第１流路部および第２流路部と、を備える。第１流路部は、一端部に、第１流路一端部側開口部を有する。第２流路部は、一端部に、第２流路一端部側開口部を有する。第１流路一端部側開口部は、ファンの駆動によって発生して第１熱交換器を横切る風の流路に位置する。第２流路一端部側開口部は、ファンの駆動によって発生して第２熱交換器を横切る風の流路に位置する。【選択図】図８
ELECTRICALLY-DRIVEN WORK MACHINE
電動式作業機械
KITAHARA SATOSHI (author)
2024-01-16
Patent
Electronic Resource
Japanese