The rotation angle detection device includes: a magnet; a magnetic detection element disposed on the one side in the axial direction relative to the magnet with a gap interposed between the magnetic detection element and the magnet; and a shield. The shield is disposed at a location in the axial direction between a location in the axial direction of a wire member allowing current to flow therethrough and a location in the axial direction of the magnetic detection element, is disposed radially outward of the magnet as seen in the axial direction, and has a portion that overlaps with the wire member as seen in the axial direction. The wire member is disposed at a location in the axial direction that is closer to the magnet than the magnetic detection element is, and is disposed radially outward of the magnet as seen in the axial direction.

A surface mounted permanent magnet motor includes a stator having poles and windings. A rotor includes magnets fixed to an outer surface of a support assembly. The stator poles face the outer surface of the rotor. The support assembly has magnetically conductive magnet carriers spaced from each other and supporting two magnets of opposing polarity. The magnet carriers have a central region of low permeability that blocks q-axis flux flowing from the stator radially towards the rotor axis surrounded by regions of high permeability. A first high permeability region defines a continuous flux path on the side of the barrier region closest to the rotor axis and links central regions of the two magnets carried by the magnet carriers. A second high permeability region is located on the side of the barrier nearest the stator that defines a flux path linking the end regions of the magnets.

A motor includes a rotor and a stator. In a plane orthogonal to an axis direction of the rotor, the motor satisfies W2<W1<M1, and T1<W1<T1+2×T2, where M1 is a width of a surface of a permanent magnet, W1 is a maximum width of a portion of an inner wall of a first magnet insertion hole in contact with the surface, W2 is a minimum width from the first magnet insertion hole to a second magnet insertion hole, T1 is a width of a first front end surface of a first tooth, and T2 is a width from the first front end surface to a second front end surface of a second tooth.

An annular stator core in which, out of slots arrayed in a circumferential direction and extending in a radial direction, q slots are formed per pole and per phase; and stator windings, for respective phases, attached to the stator core. For each stator winding, q*n unit coils obtained by winding wire conductors at regular intervals into concentric winding forms are used to obtain n coils in each of which the q unit coils wound in a same direction are connected so as to be shifted from each other in the circumferential direction, and the stator winding is composed of two coil groups each obtained by joining the n/2 coils together. The two coil groups are connected in parallel to each other between power feed portions and neutral points, and two coils that are connected to the power feed portions are disposed so as to share the slot.

An electromechanical actuator for driving a movable closure or sun protection screen includes a motor, a control board, a gear reduction assembly and a connector for connecting to a power supply source. The connector includes eight electrical contacts, the connector being in particular an RJ45 connector, for supplying power to the actuator and transmitting data from an Ethernet network. The motor is a synchronous motor including a wound stator and a rotor with permanent magnets, the stator winding being designed to withstand a voltage of 46V to 57V, in particular a voltage of 48V.

An electromechanical actuator for driving a movable closure or sun protection screen includes a motor, a control board, a gear reduction assembly and a connector for connecting to a power supply source. The connector includes eight electrical contacts, the connector being in particular an RJ45 connector, for supplying power to the actuator and transmitting data from an Ethernet network. The motor is a synchronous motor including a wound stator and a rotor with permanent magnets, the stator winding being designed to withstand a voltage of 46V to 57V, in particular a voltage of 48V.

A stator includes: a stator core including a plurality of stator teeth in a circumferential direction with respect to a center of rotation of a rotary electric machine; a stator coil disposed on a bottom portion side of each of a plurality of stator slots formed between the stator teeth; and a stator magnet disposed on an opening side of each of the plurality of stator slots and having the same polarity in a radial direction. In each of the stator slots, a plate-shaped fixing member is provided between the stator coil and the stator magnet so as to be fitted to opposed two wall surfaces of the stator slot, and a magnetic body is provided between the stator coil and the stator magnet.

A stator includes: a stator core including a plurality of stator teeth in a circumferential direction with respect to a center of rotation of a rotary electric machine; a stator coil disposed on a bottom portion side of each of a plurality of stator slots formed between the stator teeth; and a stator magnet disposed on an opening side of each of the plurality of stator slots and having the same polarity in a radial direction. In each of the stator slots, a plate-shaped fixing member is provided between the stator coil and the stator magnet so as to be fitted to opposed two wall surfaces of the stator slot, and a magnetic body is provided between the stator coil and the stator magnet.

The present invention relates to a stator for an electric motor, comprising a plurality of separate teeth comprising a first connector and a second connector, a plurality of coils which are configured to be wound respectively around the plurality of separate teeth, a first end of the wire of the winding being configured to be positioned in the first connector and a second end of the wire of the winding being configured to be positioned in the second connector, a central module configured to receive the separate teeth, said central module comprising connecting frames comprising connecting tabs extending radially and configured to be inserted in a first connector or in a second connector of a separate tooth, the connecting frames being configured to provide electrical connections between the coils.

A rotary electric machine includes a rotor, and a stator facing the rotor with a predetermined gap interposed between the rotor and stator. The stator has a stator core formed in a substantially circular annular shape and provided with an armature slot and a field slot alternately arranged in a circumferential direction, an armature winding housed in the armature slot, and a field winding and a first field magnet housed in the field slot. The armature winding generates a rotating magnetic field to rotate the rotor by being supplied with an alternating current armature current. The field winding generates a field flux by being supplied with a direct current field current. The first field magnet changes a magnetic force by the field flux.