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To cool first and second heat exchangers with a compact layout.SOLUTION: A hydraulic excavator as an electrical work machine includes a plurality of electric devices, a first heat exchanger for cooling a refrigerant passing through at least one of the plurality of electric devices, a hydraulic pump driven by any one of the plurality of electric devices to discharge hydraulic oil, a second heat exchanger for cooling the hydraulic oil, and a fan for taking in outside air into a machine body. The first heat exchanger is disposed upstream of the fan in a flow direction of the outside air caused by the fan, and the second heat exchanger is disposed downstream of the fan in the flow direction of the outside air.SELECTED DRAWING: Figure 6
【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。【解決手段】電動式作業機械としての油圧ショベルは、複数の電気機器と、複数の電気機器の少なくとも１つを通る冷媒を冷却する第１熱交換器と、複数の電気機器のいずれか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、機体内部に外気を取り込むファンと、を備える。第１熱交換器は、ファンに対して、ファンによる外気の流れ方向の上流側に配置され、第２熱交換器は、ファンに対して、上記外気の流れ方向の下流側に配置される。【選択図】図６
To cool first and second heat exchangers with a compact layout.SOLUTION: A hydraulic excavator as an electrical work machine includes a plurality of electric devices, a first heat exchanger for cooling a refrigerant passing through at least one of the plurality of electric devices, a hydraulic pump driven by any one of the plurality of electric devices to discharge hydraulic oil, a second heat exchanger for cooling the hydraulic oil, and a fan for taking in outside air into a machine body. The first heat exchanger is disposed upstream of the fan in a flow direction of the outside air caused by the fan, and the second heat exchanger is disposed downstream of the fan in the flow direction of the outside air.SELECTED DRAWING: Figure 6
【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。【解決手段】電動式作業機械としての油圧ショベルは、複数の電気機器と、複数の電気機器の少なくとも１つを通る冷媒を冷却する第１熱交換器と、複数の電気機器のいずれか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、機体内部に外気を取り込むファンと、を備える。第１熱交換器は、ファンに対して、ファンによる外気の流れ方向の上流側に配置され、第２熱交換器は、ファンに対して、上記外気の流れ方向の下流側に配置される。【選択図】図６
ELECTRICAL WORK MACHINE
電動式作業機械
KITAHARA SATOSHI (author)
2024-06-11
Patent
Electronic Resource
Japanese
IPC:
E02F
Baggern
,
DREDGING
/
B60K
Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen
,
ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES
/
F01P
Kühlung von Kraft- und Arbeitsmaschinen oder Kraftmaschinen allgemein
,
COOLING OF MACHINES OR ENGINES IN GENERAL
GREASING DEVICE OF ROTATING ELECTRICAL MACHINE FOR WORK VEHICLE
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