Arbeitsmaschine

Details

Veröffentlichungs-Nr.

EP4810730

Anmeldetag

23. Februar 2026

Veröffentlichung

23. September 2026

Rechtsraum

EP

IPC

E02F9/22, E02F9/12, E02F9/20

Abstract

[Problem] Power electronics devices of a lower traveling body are cooled without disposing a radiator in the lower traveling body.[Solution] A working machine 100 includes a turning support part 3. The turning support part 3 turnably supports with respect to a lower traveling body 2 an upper turning body 1 disposed above the lower traveling body 2. The turning support part 3 includes a slip ring 31 and a rotary joint 32. The slip ring 31 is connected to a first electric circuit 16 of the upper turning body 1 and a second electric circuit 26 of the lower traveling body 2. The rotary joint 32 is connected to a first cooling circuit 17 of the upper turning body 1 and a second cooling circuit 27 of the lower traveling body 2.

Anmelder

Firma

Yanmar Holdings Co., Ltd.

Land

🇯🇵 Japan

Fachgebiete