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Patent
Valeo Equipements Electriques Moteur | Date: 2015-04-28

An electrical connection unit for electrically interconnecting two electronic boards, is disclosed. The connection unit includes at least one electrical pin for electrically interconnecting the two boards, a mechanical link part for mechanically interlinking the two boards, where the electrical connection unit is disposed to enable concomitantly the electrical connection of the two boards via the pin and the mechanical link of the two boards via the link part, and a body which simultaneously carries the electrical pin and the mechanical link part, the body including a support portion for receiving and supporting one of the electronic boards, the support portion and the link part being disposed in such a way that the electronic board is held in place by being wedged between the support portion of the body and a point at which the mechanical link part is secured to the board.


Patent
Valeo Equipements Electriques Moteur | Date: 2016-06-07

A rotor for a rotary electrical machine, fitted such as to rotate around an axis (X), and comprising a pair of magnet wheels (17) which each have a flange (18) and a plurality of magnetic poles (19). Each magnetic pole (19) extends axially from the flange (18) towards a free end (26), and has an outer surface (27). The outer surface (27) of at least one magnetic pole (19) of at least one magnet wheel (17) has at least one decreasing segment (29). The decreasing segment (29) is configured such that a radius between the said outer surface (27) and the axis (X) of the rotor (4) decreases, when going along the said decreasing segment (29), towards the free end (26) of the said magnetic pole (19).


A connection device is provided for a rotary electric machine of the type supplied with power by a plurality of first pins arranged on a bearing of an axis of the machine at predetermined angular intervals around the axis at a first predetermined distance. The connection device includes a plurality of second pins that are arranged around the axis at a second predetermined distance, which is greater than the first predetermined distance, and that are electrically connected to a plurality of first terminals able to be connected to the first pins. The connection device also includes a main part made of plastics material with a plurality of overmoulded metal bars connecting the second pins and the first terminals.


Patent
Valeo Equipements Electriques Moteur | Date: 2015-02-25

An electronic assembly for a rotary electric machine for a motor vehicle is disclosed. The electronic assembly includes electronic component blocks having different thermal dissipation needs, the blocks including a power block and a control block. The assembly also includes a device for cooling the blocks and having a protective cover suitable for covering the power and control blocks. The protective cover includes a first set of openings configured to be positioned opposite a first cooling element coupled to the power block, and opposite the control block, the first cooling element being a first dissipator provided with a base plate, the base plate protruding with respect to the power block to create a first radial flow of cooling air (F1) for the power block and a second radial flow of cooling air (F2) for the control block.


A brush-holder for a motor vehicle starter comprising at least one first electrically conductive cage receiving a first brush having a first polarity, at least one second cage receiving a second brush having a second polarity different to the first polarity, at least one support plate on which the first cage and the second cage are attached, the support plate being electrically connected to the second polarity, and a deformable heat-sensitive member that is deformable from a pre-defined temperature, wherein the deformable member is arranged so as to electrically insulate the first cage relative to the support plate and wherein it further comprises a means for moving the first cage or the support plate in such a way as to establish contact between the first cage and the support plate following a deformation of the deformable member.


Patent
Valeo Equipements Electriques Moteur | Date: 2015-09-08

A DC electric rotating machine mainly for the starter of an automotive vehicle, including: a stator having a magnetised structure with permanent magnetisation and extending along the circumference of the stator; a rotor; a set of brushes adapted for the electric supply of the rotor by switching the electrical current in sections of the rotor; wherein the magnetised structure (5) of the stator includes at least one sector, between two consecutive magnetic poles (N; S) of the magnetised structure, having a magnetisation vector that varies in an essentially sinusoidal manner upon displacement on the stator circumference, and wherein the angular deviation of the neutral line is selected so as to improve the switching during the operation of the machine.


Patent
Valeo Equipements Electriques Moteur | Date: 2015-02-26

A rotatable electrical machine (1), particularly for a motor vehicle starter. The machine has an axis of rotation (X) and comprises a stator (2a) including: a generator field coil (4); including at least one wire (4a) comprising aluminum; and at least one pole shoe (3), including a winding core (31) whereon at least part of the stator winding is formed. The core has a center and a perimeter having at least one curved portion when observing the perimeter along an observational axis perpendicular to the rotational axis and through the center of the core.


The method according to the invention involves a hot-forging step and a cold-forging step that occurs after the hot-forging step. A polar wheel (10, 11) incorporating a plurality of finite chamfers (102) formed on exterior parts of the polar teeth (10g, 11g) is produced during the hot-forging step. According to the invention, the cold-forging step involves substeps of placing the polar wheel in a die, cold die-stamping the polar wheel with a first and a second blow in the axial direction of the polar wheel, upsetting material onto interior parts of the polar teeth (10g, 11g) so as to form magnet-housing grooves (100) and magnet lips (101).


Patent
Valeo Equipements Electriques Moteur | Date: 2015-04-28

A power supply having a transformer, a magnetizing current regulation circuit, and a device for controlling the regulation circuit intended to switch the regulation circuit alternately from the magnetizing state to the demagnetizing state is disclosed. The control device is intended to prolong the magnetization phase for a magnetization time (T_(F)). The power supply also includes an output capacitor connected to a secondary of the transformer so as to form a resonant circuit with the leakage inductor, the voltage between the terminals of the output capacitor corresponding to the output voltage (V_(S)) of the power supply. The magnetization time (T_(F)) and the value of the output capacitor are such that, on the resonance portion of the magnetization phase, the output voltage (V_(S)) describes a sine wave portion and, starting from an initial value (V_(S0)) below the median value of the sine wave, passes through said median value.


Patent
Valeo Equipements Electriques Moteur | Date: 2016-01-06

The present invention refers to a cover (17) of a contactor (1) of a starter for motor vehicle, comprising- a plastic portion (18) delimiting a contact chamber (15) volume,- two plugs (43, 45) in an electrical conductor material which cross the plastic portion, each of the two plugs (43, 45) having an end in the contact chamber (15),- a seal (37) which is arranged on the plastic portion (18) to isolate the contact chamber (15) when the cover (17) is assembled with a coil casing (5) of the contactor (1), the seal (37) being assembled in a fixed manner to the cover (17).

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