Induction device to limit acoustic oscillations

A technology of induction devices and windings, applied in the direction of circuit devices, transformer/inductor noise damping, electrical components, etc., can solve problems such as incompatibility, expensive design requirements for solutions, etc., and achieve the effect of reducing vibration
CN104620339BActive Publication Date: 2017-03-08RENAULT SA
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
RENAULT SA
Publication Date
2017-03-08

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Abstract

The present invention involves an inductive device that includes a winding (SPI), a ferromagnetic body (CF) including gap (EF) is inserted in the winding, and the winding (SPI) is kept in a metal shell(BI), and a heating film (FTC) is placed between the base of the iron magnet (CF) and the metal case (BI), the film (FTC) has the hardness less than the synthetic resinhardness.
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Description

technical field

[0001] The present invention relates generally to the field of electrical engineering, and more precisely to an induction device for power electronics, that is to say a current that can withstand, for example, several hundred amperes and can be used in particular for electric vehicles or hybrid A device for powering a charger for a vehicle. Background technique

[0002] In a known method, an induction device or induction of this type comprises a winding inside which passes a ferromagnetic body with a gap intended to limit the saturation of the ferromagnetic body as a mechanical air gap. The body is formed, for example, from a plurality of ferromagnetic blocks, eg ferrite blocks, separated from each other by gaps. Both the winding and the ferromagnetic body are inserted into an aluminum can and embedded in resin. The ferromagnetic body is placed directly in contact with the base of the aluminum can to facilitate its cooling.

[0003] When the current throug...

Claims

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