Abstract: A claw pole rotor comprises a shaft, first and second polar wheels fastened to the shaft, a winding provided with a winding insulator and surrounded by the first and second polar wheels, a commutator provided with at least one commutator ring, a fan fastened to the first polar wheel and disposed between the winding and the at least one commutator ring, at least one end-of-winding wire being linked to one of the at least one commutator rings, passing through a radial cavity provided between the fan and the first polar wheel. The winding insulator comprises a clip retaining the one end-of-winding wire. The retaining clip is fastened to the winding insulator and comprising crimping means intended to be disposed in the radial cavity to crimp the part of the end-of-winding wire extending into the radial cavity.

Abstract: A claw pole rotor comprises a shaft, first and second polar wheels fastened to the shaft, a winding provided with a winding insulator and surrounded by the first and second polar wheels, a commutator provided with at least one commutator ring, a fan fastened to the first polar wheel and disposed between the winding and the at least one commutator ring, at least one end-of-winding wire being linked to one of the at least one commutator rings, passing through a radial cavity provided between the fan and the first polar wheel. The winding insulator comprises a clip retaining the one end-of-winding wire. The retaining clip is fastened to the winding insulator and comprising crimping means intended to be disposed in the radial cavity to crimp the part of the end-of-winding wire extending into the radial cavity.

Abstract: A rotary electrical machine (10), especially a motor vehicle alternator, having a stator (12) of generally cylindrical annular form, which is arranged in a casing (14) having a rear portion (16) and a front portion (18) in which the outer axial face (24) of the stator (12) and the inner axial face (30) of the casing (14) define an annular radial space (32), and the stator (12) is suspended elastically within the casing (14), wherein at least part of the annular radial space (32) contains thermally conductive resin (50) which is deformable axially and interposed radially between the casing (14) and stator (12), so as to effect radial mechanical decoupling between the stator (12) and casing (14) and so as to dissipate heat energy from the stator (12) to the casing (14).

Abstract: The invention relates to a rotary electric machine comprising a rear bearing (2), an arrangement (1) for rectifying the current produced by the machine, which comprises a number of positive diodes (8) supported by a heat dissipater in the overall form of a plate (9) and a number of negative diodes (10) supported by support means in the form of a plate advantageously forming part of the rear bearing, the plate (9) supporting the positive diodes (8) comprising a great many cooling ribs which have the shape of fins (18, 19) extending practically radially across the plate, while an opening (20) for the passage of cooling air is made between each pair of adjacent fins (18, 19), some fins (18) extending practically as far as the outer periphery of the support plate (9).

Abstract: The invention relates to a rotary electric machine comprising a rear bearing (2), an arrangement (1) for rectifying the current produced by the machine, which comprises a number of positive diodes (8) supported by a heat dissipater in the overall form of a plate (9) and a number of negative diodes (10) supported by support means in the form of a plate advantageously forming part of the rear bearing, the plate (9) supporting the positive diodes (8) comprising a great many cooling ribs which have the shape of fins (18, 19) extending practically radially across the plate, while an opening (20) for the passage of cooling air is made between each pair of adjacent fins (18, 19), some fins (18) extending practically as far as the outer periphery of the support plate (9).

Abstract: The invention proposes a rotary electrical machine (10), especially a motor vehicle alternator, of the type comprising a stator (12) of generally cylindrical annular form, which is arranged in a casing (14) comprising a rear portion (16) and a front portion (18), of the type in which the outer axial face (24) of the stator (12) and the inner axial face (30) of the casing (14) delimit an annular radial space (32), and of the type in which the stator (12) is suspended elastically within the casing (14), characterized in that at least part of the annular radial space (32) contains thermally conductive resin (50) which is deformable axially and interposed radially between the casing (14) and stator (12), so as to effect radial mechanical decoupling between the stator (12) and casing (14) and so as to dissipate heat energy from the stator (12) to the casing (14).