Commissariat a L'energie Atomique Et Aux Energies Alternatives

Commissariat À L'énergie Atomique Et Aux Énergies Alternatives

Gerard Delette

Olivier Tosoni

Pierre Perichon

Magali Reytier

Florence Servant

Jerome Laurencin

Gregory Largiller

Sorana Luca

A converter includes a coil of axis XX', a multi-pole magnet, arranged in such a way that the magnetic polarities of two adjacent magnetised zones are oriented so that they are anti-parallel, a ferromagnetic field frame comprising a frame and a main section, the field frame further comprising a main air gap located on the main section, and a first lateral air gap and a second lateral air gap which are located on the frame, the main air gap, the first lateral air gap and the second lateral air gap being arranged in such a way as to form a guide member in which the multi-pole magnet is inserted by sliding, and in such a way as to allow a magnetic coupling of three successive magnetised zones with, respectively, the first lateral air gap, the main air gap, and the second lateral air gap.

Electromagnetic energy converter

An inductive core including a body including a ferromagnetic material and a magnet, the magnet forming a first path for circulating of magnetic flux lines produced by the magnet, and the ferromagnetic material at least partially forming a second path for circulating the magnetic flux lines, wherein the ferromagnetic material extends continuously between the poles of the magnet along the poles of the magnet and makes contact with at least a part of an exterior lateral wall of the magnet extending between its poles.

Inductive core exhibiting low magnetic losses

An electromagnetic energy converter includes: a conducting coil; a main magnet in an inner space V formed by the conducting coil, retaining structure allowing the main magnet to rotate about an axis YY' between two stable equilibrium positions; a first actuator magnet and a second actuator magnet disposed facing the first end and the second end respectively, the first and second actuator magnets being arranged to slide simultaneously in the same direction and parallel to the main axis XX&#x2032; once a force is exerted on either one of the first or second magnets.

An electronic device including a carrier, at least one active component, and at least one inductor, the inductor including a core and a winding surrounding at least part of the core, the core delimiting at least part of a magnetic field along which magnetic flux lines are intended to run. The core includes a body including at least two portions defining two successive zones of the magnetic path, the thickness of each portion being lower with respect to the length and to the width thereof, each portion including a surface that is lateral with respect to a direction of the magnetic path, a first of the portions being in direct contact with the carrier via part of its lateral surface and a second portion being positioned with respect to the carrier such that its lateral surface is free of contact with the carrier.

Electronic device including at least one inductor comprising passive heat management means

An electrochemical system including a stack of a longitudinal axis with alternating ceramic cells and interconnectors and including a thermal management mechanism incorporated in the stack, the thermal management mechanism including plates having a structured lateral surface through which a thermal transfer by radiation towards outside of the stack takes place.

High-temperature or fuel-cell electrochemical system having improved thermal management

A sintered annular magnet with a radial orientation of a remanent magnetic field, including: a principal annular part made from a ferromagnetic material, that has a first degree of magnetic anisotropy in the radial direction; and an annular reinforcing part fixed to the principal part of the magnet, the reinforcing part being made from same ferromagnetic material as the ferromagnetic material forming the principal part, and that has a second degree of magnetic anisotropy in the radial direction, the first degree being higher than the second degree.

Annular sintered magnet with radial magnetization and reinforced mechanical strength

When compressing a part, stress concentrations are prevented when it is removed from the mold by lowering an insert so as to release the top of a fine, flexible inner tube in such a way that it can expand in the location where the part will be removed from the mold, and can partially release the inner stresses in the part, in the area of the portion which has been removed from the mold.

Growing community of inventors

Grenoble, France

Gerard Delette