EP 4014305 A1 20220622 - ELECTRIC MACHINE WITH ANNULAR HEAT EXCHANGER
Title (en)
ELECTRIC MACHINE WITH ANNULAR HEAT EXCHANGER
Title (de)
ELEKTRISCHE MASCHINE MIT RINGFÖRMIGEM WÄRMEÜBERTRAGER
Title (fr)
MACHINE ÉLECTRIQUE À ÉCHANGEUR DE CHALEUR ANNULAIRE
Publication
Application
Priority
- DE 102019212118 A 20190813
- EP 2020068378 W 20200630
Abstract (en)
[origin: WO2021028109A1] The present invention relates to an electric machine (1), in particular an electric motor and/or generator, comprising a rotor (2), a stator (3), a coil (5) having a plurality of windings (6), and a plurality of electrical and/or electronic power modules (7) which are each electrically connected to a winding (6), wherein an axial direction (9) of the machine (1) runs parallel to the axis of rotation (4) of the rotor (2). Improved cooling results if a heat exchanger (10) is arranged axially on the machine (1) and comprises a cooling duct ring (11), which has an axial lower face (12) and an axial upper face (13), and a connection plate (14) arranged on the lower face (12) of the cooling duct ring (11). The cooling duct ring (11) has, on its lower face (12), an axially open intake duct (17) extending in the circumferential direction (16) for conveying a coolant, and a separate, axially open discharge duct (18) extending in the circumferential direction (16) for conveying the coolant, wherein the cooling duct ring (11) has, on its upper face (13), a plurality of axially open cooling structures (25) which are adjacent in the circumferential direction (16) and through which the coolant can flow.
IPC 8 full level
H02K 9/19 (2006.01); H02K 5/20 (2006.01); H02K 11/33 (2016.01)
CPC (source: EP)
H02K 5/20 (2013.01); H02K 9/197 (2013.01); H02K 11/33 (2016.01)
Citation (search report)
See references of WO 2021028109A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2021028109 A1 20210218; DE 102019212118 A1 20210218; EP 4014305 A1 20220622
DOCDB simple family (application)
EP 2020068378 W 20200630; DE 102019212118 A 20190813; EP 20735564 A 20200630