H02K9/197

Motor

In one aspect of a motor of the present invention, an inverter housing portion is located on the radially outer side of a stator housing portion. A housing has a tubular circumferential wall surrounding the rotor and the stator on the radially outer side of the rotor and the stator, and is a single member. The circumferential wall has a first cooling flow path, and a partition wall that partitions the stator housing portion and the inverter housing portion. The first cooling flow path extends in the circumferential direction, and at least a part of the first cooling flow path is provided in the partition wall. As viewed along the predetermined direction, a portion of the first cooling flow path provided in the partition wall has a portion overlapping the inverter and a portion overlapping the capacitor.

Motor

In one aspect of a motor of the present invention, an inverter housing portion is located on the radially outer side of a stator housing portion. A housing has a tubular circumferential wall surrounding the rotor and the stator on the radially outer side of the rotor and the stator, and is a single member. The circumferential wall has a first cooling flow path, and a partition wall that partitions the stator housing portion and the inverter housing portion. The first cooling flow path extends in the circumferential direction, and at least a part of the first cooling flow path is provided in the partition wall. As viewed along the predetermined direction, a portion of the first cooling flow path provided in the partition wall has a portion overlapping the inverter and a portion overlapping the capacitor.

Electric machine having a plurality of closing devices for closing respective intermediate spaces in relation to an air gap, and production method

The disclosure relates to an electric machine including a stator having a plurality of teeth and on which a winding of the electric machine is arranged, wherein a respective intermediate space is formed between neighboring teeth. The electric machine further includes a rotor that may rotate relative to the stator, wherein an air gap is formed between the stator and the rotor. The electric machine further includes a plurality of closing devices for closing the respective intermediate spaces in relation to the air gap, and wherein a respective closing device of the plurality of closing devices is arranged between neighboring teeth of the stator.

Electric machine having a plurality of closing devices for closing respective intermediate spaces in relation to an air gap, and production method

The disclosure relates to an electric machine including a stator having a plurality of teeth and on which a winding of the electric machine is arranged, wherein a respective intermediate space is formed between neighboring teeth. The electric machine further includes a rotor that may rotate relative to the stator, wherein an air gap is formed between the stator and the rotor. The electric machine further includes a plurality of closing devices for closing the respective intermediate spaces in relation to the air gap, and wherein a respective closing device of the plurality of closing devices is arranged between neighboring teeth of the stator.

Closed circuit for cooling the engine of an aircraft propulsion plant

An aircraft propulsion plant including an electric motor having a rotor and a stator mechanically linked to a base which can be mounted at the rear of an aircraft fuselage, a fan rotated by the rotor, a set of fixed blades located downstream of the fan, and a nacelle comprising an outer casing and a fan casing surrounding the fan and the set of fixed blades. The nacelle is mechanically linked to the base through the set of fixed blades. This configuration enables a cooling circuit to be formed for enabling the heat produced by the electric motor at the location of the stator to be evacuated towards the fixed blades and the nacelle where it is dissipated. Furthermore, this heat may be used for the de-icing of the nacelle lip.

Rotating electrical machine
11489383 · 2022-11-01 · ·

A rotating electrical machine is provided which is equipped with a rotor core and a magnet unit made up of a plurality of magnets. Each of the magnets is oriented to have an easy axis of magnetization which extends more parallel to a d-axis in a region closer to the d-axis than that in a region close to a q-axis does. The easy axis of magnetization defines a magnet-produced magnetic path. The rotor core includes d-axis protrusions through which magnetic flux passes along the d-axis and does not have q-axis protrusions through which magnetic flux passes along the q-axis. This causes a magnetic resistance in the region close to the d-axis to be lower than that in the region closer to the q-axis, thereby providing salient poles. This structure enables the rotating electrical machine to be reduced in size and have an enhanced efficiency in operation.

SYSTEM HOUSING FOR A DRIVE SYSTEM
20230092040 · 2023-03-23 ·

The invention relates to a housing (1), in particular for an electric drive system for a vehicle, wherein the housing (1) is configured as a system housing and is provided for receiving a plurality of system components, and wherein the housing (1) has a housing wall (11) which is produced by way of a casting mould, and a plurality of interfaces for connecting the housing (1) to components which are situated outside or inside the housing (1) are provided in or on the housing wall (11). Furthermore, the invention relates to the use of a housing (1) as a system housing for an electric drive axle of a motor vehicle.

SYSTEM HOUSING FOR A DRIVE SYSTEM
20230092040 · 2023-03-23 ·

The invention relates to a housing (1), in particular for an electric drive system for a vehicle, wherein the housing (1) is configured as a system housing and is provided for receiving a plurality of system components, and wherein the housing (1) has a housing wall (11) which is produced by way of a casting mould, and a plurality of interfaces for connecting the housing (1) to components which are situated outside or inside the housing (1) are provided in or on the housing wall (11). Furthermore, the invention relates to the use of a housing (1) as a system housing for an electric drive axle of a motor vehicle.

COMBINED OIL COOLING CONCEPT FOR AN ELECTRIC MACHINE WITH A ROTOR-INTEGRATED CLUTCH, ELECTRIC MACHINE, DRIVE TRAIN AND METHOD FOR COOLING AN ELECTRIC MACHINE

An electric machine includes a rotor-integrated clutch for a drive train of a motor vehicle, and has a stator and a rotor. The rotor has a carrier, on which a first part of a friction clutch configured for a force-locking connection with a second part is attached, wherein a coolant fluid line is provided in order to supply the stator or the rotor with coolant fluid to bring about heat dissipation. The coolant fluid line is arranged and perforated such that the coolant fluid both drips under gravity onto a section of the rotor in order to generate a spray mist, and flows over the outer surface of the stator.

Electric drive systems
11611256 · 2023-03-21 · ·

Fault-tolerant electric drive systems including a machine having a rotor and a stator having coils arranged in pairs. Each coil in each pair separated by 180 degrees, a first phase (ϕA) having one of the coil pairs and a phase drive circuit connected therewith, a second phase (ϕB) having a second one of the coil pairs and a second phase drive circuit connected therewith, a third phase (ϕC) having a third one of the coil pairs and a third phase drive circuit connected therewith, and a fourth phase having a fourth one of the coil pairs and a fourth phase drive circuit connected therewith. Further included is a controller connected with the first, second, third and fourth phase drive circuits to control operation thereof.