Methods of passively sampling PFAS in the environment, PFAS sorbents, apparatus and systems (apparatus plus conditions) for sampling groundwater, porewater, and surface water are described.

A coil-connecting method according to an embodiment includes: preparing a metal sleeve having a circular shape when viewed from an axial direction; processing the metal sleeve such that the metal sleeve has a non-circular shape when viewed from the axial direction, thereby obtaining a deformed sleeve; inserting a plurality of coils into the deformed sleeve, aligning the plurality of the coils by the deformed sleeve; and swaging the deformed sleeve after the plurality of the coils are inserted into the deformed sleeve, thereby connecting the deformed sleeve and the plurality of the coils together.

An insulator according to an embodiment is attached to teeth extending from one side surface in a radial direction of a ring-shaped stator core in the radial direction. The insulator ensures insulation between the teeth and a rectangular wire wound around the teeth with a number of windings. The insulator includes an end-surface cover portion, two side-surface cover portions, a first wall portion, a second wall portion, a protruding-stripe portion, and a recess. The end-surface cover portion covers an end surface of the teeth in an axial direction. The two side-surface cover portions cover both side surfaces of the teeth in a circumferential direction. At one side-surface cover portion of the two side-surface cover portions, a first winding of the rectangular wire is disposed, the rectangular wire is wound around the teeth with a number of windings, and the protruding-stripe portion and the recess are formed.

A motor comprises a housing having a cylindrical recess for receiving and centering a cylindrical wound stator The stator has an overmolded electrical connection assembly with connecting tabs extending transversely. The stator, being equipped with the electrical connection assembly, is overmolded with an electrically insulating resin. The housing has a lateral protrusion for connecting with a complementary connection assembly. The housing has, in its rear portion, a first angular wedging means complementary to a second angular wedging means provided at the rear portion of the overmolded electrical connection assembly.

Disclosed are various embodiments for a new and improved electric motor/generator including a toroidal magnetic cylinder centered on the longitudinal axis, and a coil assembly including a first coil assembly support positioned within the toroidal magnetic cylinder, and a second coil assembly support positioned within the toroidal magnetic cylinder.

A stator of an electrical machine including stator windings, a stator insulator, connectors, and a printed circuit board. Each of the stator windings is wound by magnet wire on a stator lamination core such that the stator has a plurality of magnet wires. The stator insulator is formed of an insulative material and has a ring structure and connector receivers. The connectors include legs such that the legs of each connector are coupled to a corresponding one of the connector receivers by snap-fit engagement. Each of the connectors electrically connects to single or multiple magnet wires. The printed circuit board is coupled to an input power line and is electrically connected to each of the connectors such that the printed circuit board is electrically connected to the magnet wire of each of the stator windings.

A bus bar guide is provided to fix bus bars that connect a plurality of coils disposed in a motor. The bus bar includes a conductor that has a plate shape and has a first surface and a second surface continuous with the first surface. The bus bar guide is configured by annularly arranging a plurality of bus bar guide pieces each including an insulator. Each of the plurality of bus bar guide pieces is provided with a groove that holds the first surface of the bus bar and positions the bus bar.

Provided is an embodiment of a motor comprising: a shaft; a rotor coupled to the shaft; a stator disposed so as to face the motor; a housing for accommodating the stator; and a bus bar electrically connected to the stator, wherein the housing comprises a first stepped part on which at least a part of the bus bar is disposed.

To provide an on-vehicle brushless motor device capable of being downsized with respect to an axial direction of a rotor and a method of manufacturing the same. The on-vehicle brushless motor device 1 includes a brushless motor 10 and an electronic substrate 30. The brushless motor 10 includes a rotor 12 and a stator 16 including a plurality of coils 18 arranged around the rotor 12. The electronic substrate 30 includes a through hole 34 penetrating in the axial direction X of the rotor 12 and includes a substrate body 32 arranged along a plane P intersecting the axial direction X on the side opposite to the output shaft of the brushless motor 10, and a terminal 40 fixed on the surface of the substrate body 32 on the side opposite to the rotor 12. A coil wire 20 of the coil 18 is inserted into the through hole 34 and is welded to the terminal 40 on the opposite side of the rotor 12 with respect to the substrate body 32.

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.