The invention concerns a pole shoe, in particular of a generator, comprising a pole assembly which is of a laminated configuration, at least one winding arranged around the pole assembly, and a body which passes through the laminated pole assembly in the longitudinal direction and which has a plurality of transversely directed engagement locations, preferably at most three transversely directed engagement locations, into which a respective holding means can engage to fasten the pole shoe on a support, in particular the rotor or stator of a generator. The present invention further concerns a pole shoe, in particular of a generator, comprising a pole assembly which is of a laminated configuration, at least one winding arranged around the pole assembly, and an insulating means arranged between the pole assembly and the winding, wherein the insulating means has a fiber composite material.

A stator for a rotary electric machine includes an annular yoke, and teeth projecting from the yoke in a stator radial direction. Both ends of each of the teeth in a stator axial direction include reduced-width parts. The width of each of the reduced-width parts is smaller than the width of the remaining part of each of the teeth. Stator coils each is wound around each of the teeth in concentrated winding, and includes at least one curved portion in a coil end portion. The curved portion corresponds in position to at least part of the reduced-width parts.

The invention relates to a coil former (110) for a coil (100) of an electric machine (400). The coil former has a coil core (112) and a terminating wall (115) having a first edge (118) and a second edge (119). The first edge is arranged opposite the second edge, and the terminating wall is designed to retain a coil wire (120), which can be wound around the coil core, in a wound position. The terminating wall has a first retaining projection (130) and a second retaining projection (140), wherein the first retaining projection extends in an extension plane (117) of the terminating wall from the first edge in a first projection direction (131) along a first center axis (132) of the first retaining projection and the second retaining projection extends in the extension plane (117) of the terminating wall from the second edge in a second projection direction (141) along a second center axis (142) of the second retaining projection.

A stator includes a stator core having a plurality of slots, and a plurality of segment coils, each of which has an insulating film, the plurality of segment coils each including an inclined portion and a rising portion. the rising portions that are adjacent to each other in a radial direction of the stator core being joined to each other. Each of the plurality of segment coils includes first peeled portions each in which the insulating film facing the circumferential direction of the stator core is peeled in a lengthwise direction, and second peeled portions each in which the insulating film facing the radial direction of the stator core is peeled in the lengthwise direction, and a peeling length of the first peeled portion is longer than a peeling length of the second peeled portion.

A stator includes a stator core having a plurality of slots, and a plurality of segment coils, each of which has an insulating film, the plurality of segment coils each including an inclined portion and a rising portion. the rising portions that are adjacent to each other in a radial direction of the stator core being joined to each other. Each of the plurality of segment coils includes first peeled portions each in which the insulating film facing the circumferential direction of the stator core is peeled in a lengthwise direction, and second peeled portions each in which the insulating film facing the radial direction of the stator core is peeled in the lengthwise direction, and a peeling length of the first peeled portion is longer than a peeling length of the second peeled portion.

A double-insulated motor and pinion device including a motor, motor-fixing seat, pinion, pinion sleeve and double insulation sleeve. The motor and motor-fixing seat are connected together to form a motor assembly. The pinion is mounted on a motor shaft. The pinion sleeve is mounted under the pinion, and the double insulation sleeve is connected under the pinion sleeve. The pinion, pinion sleeve, and double insulation sleeve are mounted together to form a pinion assembly. The pinion assembly is mounted on the motor assembly. It can solve the requirement of basic insulation and reinforced insulation of a series of high voltage direct current products by adding two insulation parts, while reducing space and lowering cost.

A double-insulated motor and pinion device including a motor, motor-fixing seat, pinion, pinion sleeve and double insulation sleeve. The motor and motor-fixing seat are connected together to form a motor assembly. The pinion is mounted on a motor shaft. The pinion sleeve is mounted under the pinion, and the double insulation sleeve is connected under the pinion sleeve. The pinion, pinion sleeve, and double insulation sleeve are mounted together to form a pinion assembly. The pinion assembly is mounted on the motor assembly. It can solve the requirement of basic insulation and reinforced insulation of a series of high voltage direct current products by adding two insulation parts, while reducing space and lowering cost.

A motor includes a stator and a rotor. The stator includes a stator core and a bobbin. The bobbin includes upper and lower bobbins covering the stator core from two axial ends. The upper and lower bobbins each include an end face and a side portion. The two end faces overlap two axial ends of the stator core. The side portions are aslant relative to the axial direction of the stator core. Ends of the upper and lower bobbins connected to the end faces form tight fit with the stator core, and the other ends away from the end faces form loose fit with the stator core.

A silicon steel sheet for a motor contains: a peripheral extension, a plurality of main teeth, multiple auxiliary teeth, a plurality of first pole shoes, and multiple second pole shoes. Each main tooth is separated from each auxiliary tooth and is defined between any two auxiliary teeth, and each first pole shoe is in connection with any two main teeth, and each second pole shoe is coupled with any two auxiliary teeth. Said each first pole shoe, said each second pole shoe, said each main tooth, and said each auxiliary tooth define an accommodation space configured to house at least one electrical wire. Between said each first pole shoe and said each second pole shoe is defined an opening so that the at least one electrical wire is housed in the accommodation space via the opening.

A silicon steel sheet for a motor contains: a peripheral extension, a plurality of main teeth, multiple auxiliary teeth, a plurality of first pole shoes, and multiple second pole shoes. Each main tooth is separated from each auxiliary tooth and is defined between any two auxiliary teeth, each first pole shoe is in connection with each main tooth, and each second pole shoe is coupled with each auxiliary tooth. Said each first pole shoe, said each second pole shoe, said each main tooth, and said each auxiliary tooth define an accommodation space configured to house at least one electrical wire. Preferably, at least one electrical wire is winded on said each main tooth and said each auxiliary tooth, respectively.