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公开(公告)号：EP4156469A1
公开(公告)日：2023-03-29
申请号：EP22183672.9
申请日：2022-07-07
摘要： A stator (302) and a motor (300) including a stator (302). The stator (302) includes a stator hub (306), a plurality of stator teeth (308) extending from the stator hub (306) that define a stator slot (112) having a stator slot base (112a), at least one winding (310) disposed in the stator slot, and one or more oscillating heat pipes (150) disposed at least partially in the at least one winding (310). The at least one winding (310) is held apart from the stator slot base (112a) so that a cooling channel (350) is defined between an inner winding portion of the at least one winding and a portion of the one or more oscillating heat pipes (150) is disposed in the channel (350) so cooling fluid can be passed between the stator slot base (112a) and the inner winding portion to cool the inner winding portion via at least operation of the one or more oscillating heat pipes (150).
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公开(公告)号：EP3772798A1
公开(公告)日：2021-02-10
申请号：EP19216309.5
申请日：2019-12-13
摘要： A stator core (10) is described herein comprising a plurality of individually wound stator segments (30), wherein a first of said plurality of individually wound stator segments has a T-shaped cross-section wherein the top part of the T-shape is formed by a back iron section and the bottom part of the T-shape is formed by a tooth section, and wherein a coil (40) of conductive wire is individually wound around the tooth section of the stator core segment and wherein said coil comprises a first terminal at its first end and a second terminal at its second end, and wherein each terminal is configured to be connectable to and detachable from a terminal of a second individually wound stator segment. A method for assembling such an individually wound stator core is also described herein.
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公开(公告)号：EP4084300A1
公开(公告)日：2022-11-02
申请号：EP22166821.3
申请日：2022-04-05
摘要： A stator (102;302) includes a stator hub (106;306) and a plurality of stator teeth (108;308) extending from the stator hub that define a stator slot (112) having a stator slot base (112a). At least one winding is (110;310) disposed in the stator slot and the stator also includes a back iron (320). The winding surrounds the back iron and is held apart from the stator slot base so that a fluid channel (350) is defined between an inner winding portion of the at least one winding so fluid can be passed between the stator slot base and the inner winding portion to cool the inner winding portion.
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公开(公告)号：EP4071983A1
公开(公告)日：2022-10-12
申请号：EP22160795.5
申请日：2022-03-08
摘要： Aircraft electric motors are described. The electric motors include a substantially annular shaped motor housing (800) having an outer wall (802) and an inner wall (804), wherein a rotor-stator cavity (806) is defined between the outer wall (802) and the inner wall (804) and a gear assembly cavity (812) is defined radially inward from the inner wall (804) and a gear assembly (702) arranged within the gear assembly cavity (812). The gear assembly (702) includes a sun gear (720) operably connected to a first shaft (716), at least one planetary gear (728) arranged radially outward from the sun gear (720) and rotationally engaged with the sun gear (720), and a ring gear (732) arranged radially outward from the at least one planetary gear (728) and rotationally engaged with the at least one planetary gear (728), wherein the ring gear (732) is operably connected to a second shaft (722).
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公开(公告)号：EP3772799A1
公开(公告)日：2021-02-10
申请号：EP19215821.0
申请日：2019-12-12
摘要： Disclose is a machine (10a) including: an inner stator (14a) having a plurality of radially outwardly extending teeth (60a); an outer stator (14b) having a plurality of radially inwardly extending teeth (60b) that are offset from the radially outwardly extending teeth; a rotor (11) including an extension (13) between the plurality of stators, the extension including a plurality of rotor magnet slots and a plurality of flux barrier slots; the plurality of rotor magnet slots and the plurality of flux barrier slots contact one another and are arranged in a circumferentially alternating sequence, one after another, such that each of the rotor magnet slots is circumferentially bounded by a pair of the flux barrier slots; and a portion of each of the plurality of rotor magnet slots is disposed along a machine radial axis and/or a portion of each of the plurality of flux barrier slots is disposed at an angle to the machine radial axis.
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公开(公告)号：EP4068576A1
公开(公告)日：2022-10-05
申请号：EP22166163.0
申请日：2022-03-31
发明人： POLICANDRIOTES, Tod , KSHIRSAGAR, Parag , DWARI, Suman , WAWRZYNIAK, Beata I. , TANGUDU, Jagadeesh Kumar , VOLETI, Sreenivasa R.
IPC分类号： H02K1/2796
摘要： Provided are embodiments for a method and a hybrid axial/radial motor. Embodiments can include a central rotor (102) that includes an axial segment (110), a first radial segment (108), and a second radial segment, wherein the first radial segment extends axially from a first side of the axial segment and the second radial segment extends axially from a second side of the axial segment, wherein the first side is opposite the second side. Embodiments can also include a stator adapted to receive the first radial segment or the second radial segment of the central rotor.
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公开(公告)号：EP4292202A1
公开(公告)日：2023-12-20
申请号：EP21709305.3
申请日：2021-02-09
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公开(公告)号：EP4292200A1
公开(公告)日：2023-12-20
申请号：EP21709300.4
申请日：2021-02-09
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9.发明公开
公开(公告)号：EP4016815A1
公开(公告)日：2022-06-22
申请号：EP21210274.3
申请日：2021-11-24
摘要： An electric motor system includes an electric motor (10), and a thermal management system (12). The thermal management system (12) includes a two-phase refrigerant circuit (28) circulating a flow of refrigerant through the electric motor (10), and a refrigerant-air heat exchanger (18) fluidly connected to the electric motor (10) via the two-phase refrigerant circuit (28), such that the flow of refrigerant is boiled via heat generated by the electric motor (10), and returned to a subcooled liquid state to cool the electric motor (10). A method of dissipating thermal energy from an electric motor (10) includes urging a flow of refrigerant through an electric motor (10), thereby boiling the flow of refrigerant, directing the flow of refrigerant from the electric motor to a refrigerant-air heat exchanger (18) via a two-phase refrigerant circuit (28), and cooling the refrigerant to a sub-cooled liquid state at the refrigerant-air heat exchanger via thermal energy exchange with a flow of air through the refrigerant-air heat exchanger (28).
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公开(公告)号：EP4184758A1
公开(公告)日：2023-05-24
申请号：EP22193785.7
申请日：2022-09-02
摘要： Aircraft electric motors (200; 300; 400; 500; 600) are described. The aircraft electric motors include a motor unit having a rotor (102; 212; 302) and a stator (106; 210; 304; 402; 502; 602), wherein the stator includes a plurality of windings (114; 310; 403; 604) and cooling channels (230; 314) arranged to provide cooling to the plurality of windings, a drive unit configured to drive operation of the motor unit, and a cooling system (204). The cooling system includes an oscillating heat pipe (406; 504; 606) containing a first working fluid (412; 506; 612), wherein the oscillating heat pipe is arranged to pick up heat from at least one winding, the oscillating heat pipe having an evaporator section (408; 508; 608) arranged in thermal contact with the at least one winding (403) and a condenser section (410; 510; 610) arranged away from the evaporator section and a heat pickup portion (416; 514; 616) arranged to receive a second working fluid (420; 518; 620) to remove heat from the condenser section of the oscillating heat pipe.
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