Title:
CONSTRUCTION MACHINE
Document Type and Number:
WIPO Patent Application WO/2022/130955
Kind Code:
A1
Abstract:
The present invention discloses a configuration for cooling both an electric motor as a drive source and a device for supplying electric power to the electric motor using a cooling medium such as water with a view to achieving efficient cooling without any cost increase. The present invention comprises: an electric motor 12 serving as a drive source; a power feeder 46 for supplying electric power to the electric motor 12 from outside; a cooling flow channel 60 through which coolant water is circulated for cooling the electric motor 12 and the power feeder 46; and a radiator 61 which cools the coolant water flowing through the cooling flow channel 60. The cooling flow channel 60 has a bypass flow channel section 65: that branches from a first flow channel section 60a connected to an inflow side of an intra-power-feeder flow channel, which is a coolant water flow channel disposed in the power feeder 46; that joins a second flow channel section 60b connected to an outflow side of the intra-power-feeder flow channel; and that causes the coolant water to skirt around the power feeder 46.
Inventors:
MORIGUCHI KAZUMA (JP)
TERASHIMA JUN (JP)
KITAHARA SATOSHI (JP)
YAMANAKA KEISHI (JP)
KANEDA KENSUKE (JP)
TERASHIMA JUN (JP)
KITAHARA SATOSHI (JP)
YAMANAKA KEISHI (JP)
KANEDA KENSUKE (JP)
Application Number:
PCT/JP2021/043730
Publication Date:
June 23, 2022
Filing Date:
November 30, 2021
Export Citation:
Assignee:
YANMAR HOLDINGS CO LTD (JP)
International Classes:
B60K11/04; E02F9/00; E02F9/20; F01P3/20
Foreign References:
| JP2019190107A | 2019-10-31 | |||
| JP2020153115A | 2020-09-24 | |||
| JP2020158045A | 2020-10-01 | |||
| CN106759617A | 2017-05-31 | |||
| KR20120110369A | 2012-10-10 | |||
| JP2010121327A | 2010-06-03 |
Attorney, Agent or Firm:
MATSUO Kenichiro (JP)
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