Abstract: A rotating electrical machine includes: an oil reception part that has an opening opposed to an injection hole designed to inject ATF into the atmospheric pressure inside a housing; and an oil reservoir that communicates with the oil reception part via a communicating hole provided in a wall part and communicates with a rotor cooling oil channel of a shaft via a cooling oil lead-in hole provided in the wall part. Since ATF having flowed out of the oil reception part flows along an inner face of the wall part of a second housing by gravity and reaches a bearing, one ATF supply route can be used both for cooling a rotor and lubricating a bearing, whereby the ATF supply route can be simplified.

Abstract: Provided is a rotating electric machine that allows a stator cooling passage to be formed compactly. A passage of a stator cooling refrigerant is formed by a water jacket fitted and fixed to both ends on a base side which is the flange side and a distal end side of a cylindrical portion of a stator frame on an outer circumference of the cylindrical portion, the stator frame has a difference between a diameter on the base side and a diameter on the distal end side, the diameter on the base side being formed to be larger, and the stator frame and the water jacket are sealed by press fitting and welding on the base side and the distal end side.

Abstract: A rotating electric machine includes a rotor including a rotor core fixed to a shaft, respectively, an end plate provided between the rotor core and a front-side end plate for preventing scattering of a magnet, and an end plate formed in a bowl shape. A passage including a hole penetrating the rotor core and a hole connecting the shaft to the end plate and the bowl-shaped end plate is provided, liquid refrigerant is supplied through the passage, and the liquid refrigerant discharged from the passage is scattered by rotation along an inner peripheral surface of the bowl-shaped end plate so as to reach a space between a coil end surface of a stator and an end surface of an insulator supporting a coil of the stator.

Abstract: Provided is a rotating electric machine that allows a stator cooling passage to be formed compactly. A passage of a stator cooling refrigerant is formed by a water jacket fitted and fixed to both ends on a base side which is the flange side and a distal end side of a cylindrical portion of a stator frame on an outer circumference of the cylindrical portion, the stator frame has a difference between a diameter on the base side and a diameter on the distal end side, the diameter on the base side being formed to be larger, and the stator frame and the water jacket are sealed by press fitting and welding on the base side and the distal end side.

Abstract: A rotating electrical machine includes: an oil reception part that has an opening opposed to an injection hole designed to inject ATF into the atmospheric pressure inside a housing; and an oil reservoir that communicates with the oil reception part via a communicating hole provided in a wall part and communicates with a rotor cooling oil channel of a shaft via a cooling oil lead-in hole provided in the wall part. Since ATF having flowed out of the oil reception part flows along an inner face of the wall part of a second housing by gravity and reaches a bearing, one ATF supply route can be used both for cooling a rotor and lubricating a bearing, whereby the ATF supply route can be simplified.

Abstract: A side surface at the outside of a plurality of teeth portions of one separated core is faced to a side surface of teeth portions of an adjacent separated core, so as to form a second slot which is straddled between the adjacent separated cores, and a first slot is formed by a plurality of teeth portions of one separated core, and a width size of the first slot is identical to a width size of the second slot, and coil conductor storage space is formed in the first slot via a first insulating component, and coil conductor storage space is formed in the second slot via a second insulating component, and a thickness size of the first insulating component is different from a thickness size of the second insulating component.

Abstract: Provided is an electric motor capable of cooling a stator without being increased in size with a small number of components and even with simple work. The electric motor includes ring-shaped sealing members (34) having flexibility and being arranged on an inner diameter side of a stator coil (22) so as to surround inner diameter portions of coil ends. Cooling oil flowing from an upper part of a housing into the housing flows downward through coil end oil paths (37, 38) formed by the sealing members (34), coil end covers (32, 33), and the coil ends.

Abstract: A rotating electric machine includes a rotor including a rotor core fixed to a shaft, respectively, an end plate provided between the rotor core and a front-side end plate for preventing scattering of a magnet, and an end plate formed in a bowl shape. A passage including a hole penetrating the rotor core and a hole connecting the shaft to the end plate and the bowl-shaped end plate is provided, liquid refrigerant is supplied through the passage, and the liquid refrigerant discharged from the passage is scattered by rotation along an inner peripheral surface of the bowl-shaped end plate so as to reach a space between a coil end surface of a stator and an end surface of an insulator supporting a coil of the stator.

Abstract: A coolant flow path structure which cools a rotor is configured of a first coolant flow path forming a radial coolant flow path of the rotor and a second coolant flow path communicating with the first coolant flow path and forming an axial coolant flow path of the rotor, and a negative pressure structure, which brings an exist of the coolant flow path structure into a negative pressure as a result of a rotation of the rotor, is provided at the exit of the second coolant flow path.

Abstract: Provided is an electric motor having improved overall cooling efficiency by enabling a coolant to flow around a stator and around and through a rotor in parallel for the stator and the rotor to allow the stator and the rotor to be cooled in parallel. In the electric motor, after an automatic transmission fluid flowing into a first coolant inflow port (10) passes through a shaft internal flow path and rotor internal flow paths (27), the automatic transmission fluid passes through a coolant exhaust port (20) to flow out of a housing (18). After the automatic transmission fluid flowing into a second coolant inflow port (11) passes through a clearance (31) between the housing (18) and a stator (17) and around coil ends (29) of stator coils (16), the automatic transmission fluid passes through the coolant exhaust port (20) to flow out of the housing (18).

Abstract: Provided is an electric motor capable of cooling a stator without being increased in size with a small number of components and even with simple work. The electric motor includes ring-shaped sealing members (34) having flexibility and being arranged on an inner diameter side of a stator coil (22) so as to surround inner diameter portions of coil ends. Cooling oil flowing from an upper part of a housing into the housing flows downward through coil end oil paths (37, 38) formed by the sealing members (34), coil end covers (32, 33), and the coil ends.

Abstract: In the rotary electric machine, a cylinder 04a of a ring component 04 is formed in such a way that a fitting outer surface 04c1 of the cylinder 04a of the ring component 04 is fitted to a fitting inner surface 02a of a first housing 02; a clearance value between the fitting outer surface of the cylinder and a fitting inner surface of the first housing is lower than a clearance value between an outer surface, in which the fitting outer surface is excepted, of the cylinder and an inner surface, in which the fitting inner surface is excepted, of the first housing; and a position in a diameter direction of a stator core 3 facing to the first housing is set by above-described fitting process.

Abstract: A coolant flow path structure which cools a rotor is configured of a first coolant flow path forming a radial coolant flow path of the rotor and a second coolant flow path communicating with the first coolant flow path and forming an axial coolant flow path of the rotor, and a negative pressure structure, which brings an exist of the coolant flow path structure into a negative pressure as a result of a rotation of the rotor, is provided at the exit of the second coolant flow path.

Abstract: In a rotary electric machine, a cylindrical stator core holding frame is cantilevered on a housing. A cylindrical stator core is fitted together and held inside the stator core holding frame. The stator core holding frame includes: a flange portion that is fixed to the housing; and a frame cylindrical portion that is coupled to the flange portion, and that holds the stator core. A thickness of the flange portion is greater than a thickness of the frame cylindrical portion.

Abstract: A side surface at the outside of a plurality of teeth portions of one separated core is faced to a side surface of teeth portions of an adjacent separated core, so as to form a second slot which is straddled between the adjacent separated cores, and a first slot is formed by a plurality of teeth portions of one separated core, and a width size of the first slot is identical to a width size of the second slot, and coil conductor storage space is formed in the first slot via a first insulating component, and coil conductor storage space is formed in the second slot via a second insulating component, and a thickness size of the first insulating component is different from a thickness size of the second insulating component.

Abstract: Provided is an electric motor having improved overall cooling efficiency by enabling a coolant to flow around a stator and around and through a rotor in parallel for the stator and the rotor to allow the stator and the rotor to be cooled in parallel. In the electric motor, after an automatic transmission fluid flowing into a first coolant inflow port (10) passes through a shaft internal flow path and rotor internal flow paths (27), the automatic transmission fluid passes through a coolant exhaust port (20) to flow out of a housing (18). After the automatic transmission fluid flowing into a second coolant inflow port (11) passes through a clearance (31) between the housing (18) and a stator (17) and around coil ends (29) of stator coils (16), the automatic transmission fluid passes through the coolant exhaust port (20) to flow out of the housing (18).

Abstract: In a rotary electric machine, a cylindrical stator core holding frame is cantilevered on a housing. A cylindrical stator core is fitted together and held inside the stator core holding frame. The stator core holding frame includes: a flange portion that is fixed to the housing; and a frame cylindrical portion that is coupled to the flange portion, and that holds the stator core. A thickness of the flange portion is greater than a thickness of the frame cylindrical portion.

Abstract: In the rotary electric machine, a cylinder 04a of a ring component 04 is formed in such a way that a fitting outer surface 04c1 of the cylinder 04a of the ring component 04 is fitted to a fitting inner surface 02a of a first housing 02; a clearance value between the fitting outer surface of the cylinder and a fitting inner surface of the first housing is lower than a clearance value between an outer surface, in which the fitting outer surface is excepted, of the cylinder and an inner surface, in which the fitting inner surface is excepted, of the first housing; and a position in a diameter direction of a stator core 3 facing to the first housing is set by above-described fitting process.