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公开(公告)号：EP3136557A4
公开(公告)日：2017-12-13
申请号：EP14893469
申请日：2014-05-27
发明人： HORII MASAKI , HIGASHINO HIROYUKI
CPC分类号： H02K9/19 , H02K1/12 , H02K3/24 , H02K5/20 , Y02T10/641
摘要： The present invention provides a rotary electric machine that reduces pressure loss and minimizes pumping power by making a surface of a cooling oil channel that faces a coil into an opening, and that also suppresses temperature increases in the coil and enables reductions in size to be achieved by changing cooling oil that flows through the cooling oil channel into an axial flow so as to be supplied between the coils using oil flow direction changing projections. The rotary electric machine according to the present invention includes: an annular cooling oil channel that is configured inside an externally mounted frame so as to face axially toward a plurality of coils that are arranged in an annular shape and such that a surface that faces the plurality of coils is made into an opening; an oil pump; a nozzle that sprays cooling oil that is conveyed under pressure from the oil pump into the cooling oil channel from above; and a plurality of oil flow direction changing projections that are respectively disposed inside the cooling oil channel and are arranged circumferentially so as to face gaps between the coils and such that cooling oil receiving surfaces face upstream in a direction of flow of the cooling oil so as to change the cooling oil that flows through the cooling oil channel to an axial flow so as to be supplied to the gaps between the coils.
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公开(公告)号：EP2789518A4
公开(公告)日：2015-09-02
申请号：EP12854752
申请日：2012-11-22
IPC分类号： B61C17/00
CPC分类号： F01P1/06 , B61C17/00 , H05K7/20918 , H05K7/20936
摘要： A cooling device includes a base plate to a rear surface side of which an under-floor device is attached; a heat radiating unit attached to a front surface side of the base plate and radiating heat conducted from the under-floor device via the base plate; a cover surrounding the heat radiating unit and including a side opening capable of causing traveling wind to flow therein and causing a traveling wind flown therein to flow out, in opposite side surfaces facing a traveling direction of a vehicle; and an guide plate guiding traveling wind flowing in from the side opening to the heat radiating unit by blocking at least part of a gap area between a surface connecting the opposite side surfaces of the cover and the heat radiating unit, the guide plate being provided in a side gap area between a side surface of the cover and the heat radiating unit on a side from which the traveling wind flows in.
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