A multi-phase armature winding is made up of winding segments. Each of the winding segments includes a pair of straight sections extending straight in an axial direction of the armature winding and connecting sections which are located on axially opposed end sides of the armature winding. The connecting sections are bent and connect the straight sections together in a circumferential direction of the armature winding. The winding segment is produced by winding a conductor wire member a plurality of times. The conductor wire member is made of a bundle of wires. Each of the straight sections occupies the whole of a coil side and portions of coil ends of the winding segment. Each of the straight sections has holding portions arranged at least in coil end portions thereof. The holding portions work to tighten the wires together.

A support structure for supporting a lamination stack and a winding structure in order to form a stator segment for an electric machine, in particular a wind turbine generator including (a) a frame including two parallel end plates and two side plates, the side plates extending between corresponding end portions of the end plates, (b) a plurality of internal connecting members extending within the frame between the end plates, and (c) a plurality of external connecting members extending outside of the frame, each external connecting member forming an extension of a corresponding internal connecting member beyond one of the end plates, wherein (d) the internal and external connecting members are adapted to engage with corresponding fastening members for securing a lamination stack. A stator segment, a wind turbine generator, and a method of manufacturing a support structure are also described.

An armature winding includes a plurality of winding segments each of which is made of a winding of a conductor wire member. The winding segments are arranged at a given interval away from each other in a circumferential direction of the armature winding and face a magnet unit. Each of the conductor wire members is made of a bundle of a plurality of wires. Each winding segment includes a pair of straight portions and link portions. The straight portions extend straight in an axial direction of a rotor. The link portion connect the straight portions together. Each of the straight portions is made of turns of the conductor wire member which are arranged in the form of multiple columns and layers. Each link portion is shaped to have a space factor lower than those in the straight portions of the winding segment.

A motor includes a stator, a rotor, and a magnetic sensor. The stator includes an annular stator core. The stator core surrounds a central axis extending in an axial direction. The rotor is rotatable about the central axis. The rotor includes a first magnet, a second magnet, and a spacer. The first magnet is outward in a radial direction with respect to the stator core. The second magnet extends in one axial direction with respect to the first magnet and the stator core. The spacer is between the first magnet and the second magnet in the axial direction. The magnetic sensor detects a magnetic force of the second magnet. The spacer is made of a non-magnetic material.

A fan for use in agriculture which has a BLDC motor which allows for varying the speed of the fan to vary the airflow rate of the fan and vary the efficiency of the fan. A ventilation system for use in a livestock confinement building to maximize a rate of growth of the livestock. A process for maximizing the growth of livestock in a livestock confinement building by controlling the airflow in the livestock confinement building.

An electric motor suitable for use in a laundry machine comprises an improved stator and/or rotor design.

A power tool including a housing, a controller within the housing, and a brushless motor within the housing and controlled by the controller. The brushless motor including a stator assembly including a stator core having stator laminations with an annular portion and inwardly extending stator teeth. The stator assembly defines a stator envelope in an axial direction extending between axial ends of stator end caps of the stator assembly. The brushless motor further includes a rotor assembly including a rotor core having rotor laminations and defining a central aperture that extends in the axial direction and that receives a shaft, and a position sensor board assembly including position sensors and configured to provide position information of the rotor core to the controller. The rotor assembly and the position sensor board assembly are provided at least partially within the stator envelope.

The present disclosure relates to a stator assembly for an electrical machine. The stator assembly comprises a plurality of stator frames (110, 120, 130) forming a stator rim (100). The stator frames (110, 120, 130) defining ring sectors and mounted to each other to form a stator rim (100). Further, the stator frames (110, 120, 130) at least partially form an air distribution channel extending from at least one of the stator frames (110, 120, 130) into another of the stator frames (110, 120, 130). Methods (400) for assembling a stator assembly are also disclosed.

A motor including a rotating portion that is rotatable about a center axis that extends vertically and a stationary portion that rotatably supports the rotating portion. The stationary portion includes a stator facing at least a portion of the rotating portion in a radial direction, a base disposed axially below the stator, and a resin portion covering at least a portion of the stator, connecting the stator and the base. The base includes a recessed portion that is recessed downward in an axial direction and that accommodates at least a portion of the resin portion. The recessed portion includes an inner peripheral surface provided with an upper wall portion disposed axially above a portion of the resin portion.

A system includes a tool and an emergency response vehicle transitionable between a motive gear and a non-motive gear. The emergency response vehicle includes a mount for removably securing the tool to the emergency response vehicle. The system further includes a scanner coupled to the emergency response vehicle and operable to detect the tool when the tool is secured to the emergency response vehicle by the mount and a controller communicatively coupled to the scanner. The system is configured to determine that the emergency response vehicle has transitioned between a non-motive gear and a motive gear and in response to determining that the emergency response vehicle has transitioned between the non-motive gear and the motive gear, cause the scanner to scan the emergency response vehicle for the tool to determine whether the tool is secured to the emergency response vehicle.