Abstract: The invention relates mainly to an assembly comprising a brush cage and a spiral spring (36), the spiral spring (36) comprising an axis (Y), a wound part (37) wound about the axis (Y) and an arm (39) extending from one end of the wound part (37), the brush cage comprising at least one lateral wall provided with an opening for the passage of the arm (39) through the lateral wall so that one end of the arm (39) can press against at least part of an end face of a brush, wherein the arm (39) comprises a first portion (391) of which the width (L5) measured along the axis (Y) is different from the width (L6) of the wound part (37) measured along the axis (Y) of the spiral spring (36).

Abstract: The invention relates mainly to a brush cage (13) for a brush holder (10) of an electric motor comprising:—two lateral walls (26) and a connecting wall (28) connecting the two lateral walls (26),—in which cage at least one of the lateral walls (26) has an opening (43) for the passage of a spring arm,—the lateral wall (26) comprising the opening (43) having a length (L0) measured between a first end (51) intended to be furthest from a commutator and a second end (52) intended to be closest to the commutator, wherein the opening (43) comprises at least a first portion (431) between the two ends (51, 52) which widens out towards the second end (52).

Abstract: The invention mainly relates to a spiral spring (36) of a brush holder for a motor vehicle starter. The spiral spring includes: —a rolled-up portion (37) having a plurality of turns (371); and —an arm (39) for engaging one surface of a brush of the brush holder. The invention is characterized in that the spiral spring (36) also comprises a means (42) for reducing the friction between at least two adjacent turns (371) of the rolled-up portion (37).

Abstract: The invention relates mainly to an assembly comprising a brush cage and a spiral spring (36), the spiral spring (36) comprising an axis (Y), a wound part (37) wound about the axis (Y) and an arm (39) extending from one end of the wound part (37), the brush cage comprising at least one lateral wall provided with an opening for the passage of the arm (39) through the lateral wall so that one end of the arm (39) can press against at least part of an end face of a brush, wherein the arm (39) comprises a first portion (391) of which the width (L5) measured along the axis (Y) is different from the width (L6) of the wound part (37) measured along the axis (Y) of the spiral spring (36).

Abstract: The invention relates mainly to a brush cage (13) for a brush holder (10) of an electric motor comprising:—two lateral walls (26) and a connecting wall (28) connecting the two lateral walls (26),—in which cage at least one of the lateral walls (26) has an opening (43) for the passage of a spring arm,—the lateral wall (26) comprising the opening (43) having a length (L0) measured between a first end (51) intended to be furthest from a commutator and a second end (52) intended to be closest to the commutator, wherein the opening (43) comprises at least a first portion (431) between the two ends (51, 52) which widens out towards the second end (52).

Abstract: A rotating electric machine including at least a first terminal and a second terminal, and an electric circuit connected to said two terminals, the electric circuit including a field winding. The rotating electric machine also includes a thermal protection device (7) arranged in the electric machine. The thermal protection device (7) includes a first electric conductor (71) electrically connected to the second terminal, and a heat-sensitive member (8) arranged so as to deform above a predetermined temperature, wherein, above a predetermined temperature, the deformation of the heat-sensitive member (8) actuates a connection means (72) of the thermal protection device in order to electrically connect the first conductor to a second conductor of the electric circuit having a different electric potential than that of the second terminal.

Abstract: A motor vehicle heat engine starter comprising a rotary electric machine (5) that has a rotor (9) and a stator (8) and comprises a plurality of magnetic poles (65) arranged on an internal circumference of a yoke (66). Each magnetic pole (65) is made up of a salient pole shoe (69) surrounded by a winding (70). The starter is characterized in that an air gap (76), separating the rotor (9) from the magnetic poles (65) of the stator (8), varies according to the circumference thereof. The invention also relates to a corresponding pole shoe (69).

Abstract: A rotating electric machine including at least a first terminal and a second terminal, and an electric circuit connected to said two terminals, the electric circuit including a field winding. The rotating electric machine also includes a thermal protection device (7) arranged in the electric machine. The thermal protection device (7) includes a first electric conductor (71) electrically connected to the second terminal, and a heat-sensitive member (8) arranged so as to deform above a predetermined temperature, wherein, above a predetermined temperature, the deformation of the heat-sensitive member (8) actuates a connection means (72) of the thermal protection device in order to electrically connect the first conductor to a second conductor of the electric circuit having a different electric potential than that of the second terminal.