Leroy Somer

Angouleme, France

Leroy Somer

Angouleme, France
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Patent
Leroy Somer | Date: 2017-02-15

The present invention relates to a stator (2) for a rotary electric machine (10), comprising: a toothed ring (25) comprising teeth (23) defining notches (21) therebetween, said notches being open radially toward the outside, windings (22), which are arranged in a distributed manner in the notches (21), electrical conductors being arranged in an aligned manner in the notches (21), and a yoke (29) mounted onto the toothed ring.


The present invention relates to a brake (20) for an electric motor (10), comprising: a yoke, at least one brake disc intended for being rotated with the shaft of the electric motor, at least one armature axially movable relative to the yoke between a braking position in which said armature is applied against the brake disc and an inactive position at a distance from the brake disc, at least one retaining element (50) axially movable with the armature, at least one spring tending to maintain the armature in braking position, an electromagnet biasing the armature into the inactive position when supplied with current, and a system for locking the armature in the inactive position, the locking system comprising a locking member (70) movable between a locked position in which said member engages with the retaining element (50) such as to retain the armature in inactive position against the return action of the spring and an unlocked position for releasing the armature allowing the armature to be returned into the braking position, the retaining element (50) comprising a rod (51) sliding in the yoke, the locking member (70) being rotatable about an axis of rotation parallel to that of the motor, the brake comprising an electrical actuator making it possible to move the locking member.


Patent
Leroy Somer | Date: 2017-01-11

The invention relates to an electrically insulated conductive wire comprising an electrically conductive core and an insulating structure that covers the core and comprises at least: one layer of a first electric insulation material; and one layer of a second electric insulation material. The first electric insulation material layer and the second electric insulation material layer are separated by at least one layer of a third electric insulation material that is different from the first and second electric insulation materials. At least one of the first electric insulation material and second electric insulation material layers is located inside the insulating structure. The first electric insulation material and the second electric insulation material comprise polyesterimide and/or polyester.


Patent
Leroy Somer | Date: 2017-01-18

The invention relates to an electrical engine comprising a housing provided with an opening (21) having a diaphragm (131) that forms a barrier to liquid water located between the inside and the outside of said housing but is pervious to water vapor. The stator is liquid-cooled, and the engine comprises an inner fan (12) for generating a forced air flow inside the engine. The diaphragm (131) is located in an area where the forced air flow exposes the latter on the inside to pressure greater than the atmospheric pressure.


Patent
Leroy Somer | Date: 2017-01-18

A rotating electric machine (1) comprising at least one end flange (20) carrying a bearing (21), a housing (10) onto which the end flange (20) is attached, said housing (10) being cooled by a liquid cooling circuit and having at least two connectors (40) communicating with said cooling circuit, the two unions (40) allowing the supply of cooling liquid to and the return of same from the end flange (20) when the latter is designed to be cooled by a flow of the cooling liquid.


Patent
Leroy Somer | Date: 2017-02-15

The present invention relates to a rotor (1) for a rotary electric machine (10), comprising a magnetic rotor body (3) and at least two permanent magnets (7) defining a pole (11) of the rotor (1), the two permanent magnets (7) being arranged on either side of a radial axis (Y) of said pole in a common recess (8) which is provided in the magnetic rotor body (3) and through which the radial axis (Y) of the pole passes.


Patent
Leroy Somer | Date: 2017-02-15

The present invention relates to a rotor (1) for a rotary electric machine (10), comprising permanent magnets (7) defining magnetic poles (11) of the rotor, i.e. a first pole and a second pole adjacent to the first pole, the first and second poles having different polarities; permanent magnets (7) assigned to the first pole contribute only to the polarity of the first pole, and at least one shared permanent magnet (7) contributes in part to the polarity of the first pole and in part to the polarity of the second pole.


Patent
Leroy Somer | Date: 2017-01-04

Rotary electric machine rotor (2) comprising a plurality of stacked laminations or, respectively, of stacked bundles of laminations (9), each lamination or, respectively, each bundle of laminations (9), comprising a hub (11) and an alternation of pole parts (13) connected to the hub (11) and not floating and of recesses (16), the laminations or, respectively, the bundles of laminations (9) being angularly offset in such a way that the non-floating pole parts (13) of a lamination or, respectively, of a bundle of laminations (9) are superposed with the recesses (16) of a consecutive lamination or, respectively, or a consecutive bundle of laminations (9), and the recesses (16) of a lamination or, respectively, of a bundle of laminations (9) are superposed on the pole parts (13) of said consecutive lamination or, respectively, of said consecutive bundle of laminations (9), retaining rods (26) engaged through the non-floating pole parts (13), floating pole parts (17) engaged on the retaining rods (26) and arranged in the recesses (16) between the non-floating pole parts (13) of a lamination or, respectively, of a bundle of laminations (9), and permanent magnets (18) arranged between the non-floating pole parts (13) and the floating pole parts (17).


Patent
Leroy Somer | Date: 2015-04-09

A rotor for a rotary electric machine includes a magnetic rotor body and at least two permanent magnets defining a pole of the rotor, the two permanent magnets being arranged on either side of a radial axis of the pole in a common recess which is provided in the magnetic rotor body and through which the radial axis of the pole passes.


Patent
Leroy Somer | Date: 2016-06-24

The invention relates to an electric machine comprising a stator, this stator comprising a set (10) of magnetic laminations which is made up of at least one first subset (50) and of at least one second subset (60) adjacent to the first the laminations of the first and second subsets having parts which become superposed, each comprising at least one closed channel formed within the laminations, the laminations being identical but angularly offset from one another by an angle 360/n about the axis of the machine, where n is a non-zero integer, the laminations being without symmetry in a rotation by 360/n so that the parts of the laminations thus offset which become superposed are nonidentical and create the said perturbation in the flow at the transition between the channels of the first and second subsets.

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