[go: up one dir, main page]

EP4205151A1 - Winding support for a magnetic component of an electrical assembly - Google Patents

Winding support for a magnetic component of an electrical assembly

Info

Publication number
EP4205151A1
EP4205151A1 EP21766662.7A EP21766662A EP4205151A1 EP 4205151 A1 EP4205151 A1 EP 4205151A1 EP 21766662 A EP21766662 A EP 21766662A EP 4205151 A1 EP4205151 A1 EP 4205151A1
Authority
EP
European Patent Office
Prior art keywords
tube
legs
magnetic component
wedging
winding
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP21766662.7A
Other languages
German (de)
French (fr)
Inventor
Yannick SOHIER
Boris Bouchez
Stephane Fontaine
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Valeo Electrification
Original Assignee
Valeo Siemens eAutomotive France SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Valeo Siemens eAutomotive France SAS filed Critical Valeo Siemens eAutomotive France SAS
Publication of EP4205151A1 publication Critical patent/EP4205151A1/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F5/00—Coils
    • H01F5/02—Coils wound on non-magnetic supports, e.g. formers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/32—Insulating of coils, windings, or parts thereof
    • H01F27/324—Insulation between coil and core, between different winding sections, around the coil; Other insulation structures
    • H01F27/325—Coil bobbins
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F5/00—Coils
    • H01F5/02—Coils wound on non-magnetic supports, e.g. formers
    • H01F2005/022—Coils wound on non-magnetic supports, e.g. formers wound on formers with several winding chambers separated by flanges, e.g. for high voltage applications

Definitions

  • the present invention relates to the field of electrical equipment and magnetic components, in particular for vehicles.
  • the present invention relates to winding supports for magnetic components, in particular for electrical transformers, making it possible to guarantee air gaps of ferromagnetic cores and configured to minimize electromagnetic disturbances.
  • Many systems in particular electric or hybrid vehicles, comprise electrical equipment and magnetic components such as an electrical transformer allowing the transfer of electrical energy from a primary circuit to a secondary circuit.
  • an electric transformer a magnetic core and windings are used in which an electric current flows which generates a magnetic field allowing the transfer of electric energy from the primary circuit to the secondary circuit. More specifically, in an electrical transformer, in particular in a magnetizing inductance power converter or in a resonant power converter, there is a primary winding and one or more secondary windings, wound around a magnetic core, between which is transferred electrical energy.
  • An electric transformer for an electric or hybrid vehicle generally comprises two legs, each of which is composed of a part of the magnetic core with windings.
  • a transformer is provided with three or even more legs in order to accommodate the requirement of power density. high power.
  • the transformer 3 is a three-phase electrical transformer comprising a ferromagnetic core 30 and its three legs comprising an inner leg 32 and two side legs 31, 33. On each of the legs 31, 32, 33, a primary winding 510 and a secondary winding 520 are wound on different portions of the leg 31, 32 or 33. Ferromagnetic half-cores 30a and 30b in the form E are known in particular, as represented in figure 1 .
  • the primary windings 510 are wound on the ferromagnetic half-core 30a, and the secondary windings 520 are wound on the ferromagnetic half-core 30b.
  • the ferromagnetic core 30 with the primary 510 and secondary 520 windings are housed in a radiator forming part of a frame generally made of a material with good thermal conductivity, suitable for dissipating the heat produced by said transformer 3.
  • Each of the three legs 31, 32, 33 is formed by two half-legs, one of which is part of the first ferromagnetic half-core 30a and the other is part of the second ferromagnetic half-core 30b.
  • the two half-legs of the leg 31, 32, or 33 are facing each other separated by an air gap 801 which is a space between the two half-legs, as illustrated in Figure 1 .
  • the air gap 801 allows, by flattening the hysteresis curve and decreasing the permeability of the ferromagnetic core 30, better energy management.
  • the three air gaps on the three legs 31, 32, 33 should be identical, regardless of whether the lengths of the half-legs of the legs 31, 32, 33 are identical.
  • the distance between the two half-legs of the inner leg 32 can be greater than that between two half-legs of the lateral leg 31 or 33. It is nevertheless not desired that the air gap on the inner leg 32 be greater than that on the lateral leg 31 or 33.
  • an additional thickness plate can be added to one of the two half-legs of the inner leg 32.
  • the additional thickness plate is made of material such as plastic, epoxy, and ceramic, etc.
  • the addition of the additional thickness plate could complicate the manufacture and/or the assembly process of the magnetic component. Moreover, this addition does not necessarily guarantee the formation of identical air gaps on the legs of the ferromagnetic core 30. In addition, the windings wound on the leg 31, 32 or 33 of the ferromagnetic core 30 may be too close to the air gap, which which would lead to magnetic losses by fringe effect.
  • the present invention therefore aims at a solution for forming in a simple manner, in terms of the manufacturing and/or assembly process of the component magnetic and the electrical assembly, identical air gaps on the legs of the ferromagnetic core. Furthermore, the invention also aims at a solution making it possible to reduce the magnetic losses generated if the windings wound on the winding supports are not sufficiently far from the air gaps.
  • the present invention relates to a winding support comprising a tube intended to receive one of the legs of a ferromagnetic core of a magnetic component, so that the half-legs of said leg are opposite. in the tube, the magnetic component further comprising windings which correspond to said leg and which are wound on the tube.
  • Said winding support comprises a wedging protrusion and at least one distancing wall.
  • the wedging protrusion is formed on an internal surface of the tube, so as to define an air gap between said half-legs facing each other.
  • the at least one distancing wall, formed opposite the wedging protrusion and on an outer surface of said tube, is configured to distance at least one of the windings from said air gap.
  • the invention thus makes it possible to form, in a simple manner in terms of the manufacture and/or of the assembly process of the magnetic component and of the electrical assembly, identical air gaps on the legs of the ferromagnetic core.
  • the winding supports according to the invention make it possible to guarantee the insertion of the half-legs in the tubes of the winding supports, and to center the air gaps with respect to the windings wound on said tubes.
  • the invention also makes it possible to reduce the magnetic losses generated if the windings wound on the winding supports are not far enough from the air gaps.
  • the wedging protrusion having a thickness parallel to a longitudinal axis of said tube, is formed orthogonally to said internal surface of the tube; the dimension of said air gap being defined according to the thickness of the wedging protrusion.
  • a section of the wedging protrusion being transverse to the longitudinal axis of said tube, has the shape of a ring; said height being perpendicular to said internal surface of the tube.
  • the winding support comprises a receiving cavity defined by the wedging protrusion so that an adhesive used during the manufacture of the magnetic component can spread into said receiving cavity; said receiving cavity being a space between portions of the wedging protrusion facing each other.
  • the at least one distancing wall having a thickness parallel to the longitudinal axis of said tube, is formed perpendicular to the outer surface of the tube.
  • a section of the at least one distancing wall, being transverse to the longitudinal axis of said tube, has the shape of a ring.
  • the thickness of the wedging protuberance and/or the thickness of the at least one distancing wall are uniform.
  • the wedging protuberance and/or the at least one distancing wall are formed at an intermediate plate; said intermediate plate separating the windings wound on the tube from the winding support.
  • the wedging protrusion and/or the at least one distancing wall are made from the material of the winding support.
  • the winding support is made in one piece by molding.
  • the winding support is made of plastic material.
  • the winding support is configured to be housed in a cavity of a frame comprising ski lifts, so that said ski lifts are placed in a space between two adjacent legs of the ferromagnetic core. .
  • the invention also relates to an electrical assembly comprising a magnetic component and winding supports, said winding supports each comprising a tube configured to receive half-legs of one of several legs of a ferromagnetic core of said magnetic component; for each of said legs, the magnetic component further comprising windings which correspond to said leg and which are wound on the tube in which the half-legs of the leg face each other.
  • Each of the winding supports of said electrical assembly comprises a wedging protrusion and at least one distancing wall. The wedging protrusion is formed on an internal surface of the tube, so as to define an air gap between two half-legs of the leg facing each other.
  • Said at least one distance wall formed vis-à-vis the wedging protrusion and on an outer surface of said tube, is configured to distance at least one of the windings from said air gap.
  • the magnetic component has air gaps respectively defined by one of the winding supports, the air gaps being identical on the legs of the ferromagnetic core.
  • the electrical assembly comprises a frame and mechanical lifts.
  • Said frame comprises a cavity in which the winding supports as well as the magnetic component are housed.
  • the ski lifts are placed in a gap between two adjacent legs of the ferromagnetic core, so as to even out the dissipation of the heat generated during the operation of the magnetic component.
  • the invention further relates to electrical equipment comprising an electrical assembly described above.
  • Figure 1 is a schematic representation of a known three-leg electrical transformer
  • Figure 2 illustrates an electrical assembly comprising a three-leg electrical transformer housed in a frame, according to one embodiment of the invention
  • Figure 3 illustrates, without the presence of the windings of a branch of the magnetic component, the electrical assembly according to one embodiment of the invention
  • Figure 4 illustrates, without the presence of the magnetic component, the frame comprising ski lifts, according to one embodiment of the invention
  • Figure 5 illustrates a winding support according to one embodiment of the invention
  • Figure 6 illustrates the winding support from a perspective different from that of Figure 5;
  • Figure 7 illustrates the winding support from a perspective different from those of Figures 5 and 6;
  • Figure 8 illustrates the cross section AA of the winding support of Figure 5;
  • Figure 9 illustrates, from a perspective different from that of Figure 8, the cross section A-A of the winding support.
  • FIGS 2 and 3 illustrate an electrical assembly 10 according to one embodiment of the invention.
  • the electrical assembly 10 comprises a magnetic component 300 and a frame 7 configured to receive the magnetic component 300.
  • the electrical assembly 10 and its elements are in particular intended for an electric or hybrid vehicle.
  • the electrical assembly 10 according to the invention is thus for example intended to be integrated into electrical equipment such as an electronic power module of the vehicle.
  • the electronic power module is configured to allow controlled passage of electrical energy between a high voltage supply battery and an electrical machine of the vehicle.
  • “electronic power module” means an assembly comprising components through which the energy supplying the electrical machine passes, in particular intended to transform direct current into alternating currents or vice versa. These components may comprise electronic switches, such as for example semiconductor transistors, arranged in an electrical circuit to allow a controlled passage of electrical energy between the high voltage supply battery and the electrical machine.
  • the components are bare semiconductor chips for which the body realizes an encapsulation.
  • a power electronic module is an assembly comprising a plurality of semiconductor chips forming an electrical circuit encapsulated in a single package.
  • the magnetic component 300 includes a ferromagnetic core comprising a plurality of legs.
  • the legs include at least one interior leg which is sandwiched between two adjacent legs of the magnetic component 300.
  • the at least one interior leg is not adjacent to walls 75 of a cavity 71 formed in the frame. 7 to receive the magnetic component 300.
  • the legs further include side legs which are both adjacent to the walls 75 of the cavity 71 and to the at least one interior leg.
  • said magnetic component 300 is a three-legged transformer having a structure similar to that of transformer 3 as described above and in FIG. 1.
  • elements of magnetic component 300 which have functions and names similar or even identical to those of transformer 3 are indicated by the same reference numbers (eg legs 31 to 33).
  • the invention is not limited to the type of magnetic component or the number of legs.
  • the magnetic component 300 can for example be a converter having a ferromagnetic core comprising more than three legs.
  • the magnetic component 300 comprises a ferromagnetic core 30 which has three legs 31, 32, 33, namely two side legs 31, 33 and an inner leg 32.
  • the ferromagnetic core 30 preferably comprises a first ferromagnetic half-core 30a and a second ferromagnetic half-core 30b respectively in E shape.
  • -ferromagnetic core 30a and the other is part of the second ferromagnetic half-core 30b.
  • the half-legs have identical lengths.
  • the half-legs have different lengths.
  • the two half-legs of each leg are opposite each other separated by an air gap which allows, by flattening the hysteresis curve and reducing the permeability of the ferromagnetic core 30, better energy management.
  • each leg 31, 32, 33 corresponds to a phase of the three-phase electrical transformer.
  • at least two windings are arranged. More specifically, on each of the legs 31 to 33, a primary winding 510 and at least one secondary winding 520 are respectively wound on one of the half-legs of the leg.
  • a single secondary winding 520 is present on each leg 31, 32, 33 .
  • the primary windings 510 are wound on the half-legs which form part of the ferromagnetic half-core 30a while the secondary windings 520 are wound on the half-legs which form part of the ferromagnetic half-core 30b. It is noted that the invention is not limited to the production of the magnetic component 300.
  • FIG 4 illustrates, without the presence of the magnetic component 300, the frame 7 comprising ski lifts 77 (which will be described in detail later), according to one embodiment of the invention.
  • the chassis 7 preferably forms a heat dissipation radiator 7 which serves as a passive cooling module configured to favor the dissipation of the heat generated during the operation of the magnetic component 300.
  • the radiator 7 can be an existing element of the electric or hybrid vehicle where the component magnet 300 is installed.
  • the frame 7 is preferably made of a material having good thermal conductivity, for example aluminum.
  • Said cavity 71 formed in frame 7 to receive at least one winding support 61 (which will be described in detail later) as well as the magnetic component 300, is delimited by the walls 75 as well as by a lower surface 73 forming part of a first surface of the frame 7.
  • the lower surface 73 is the bottom of the cavity 71 .
  • the walls 75 are preferably perpendicular to said lower surface 73. In an advantageous embodiment, the walls 75 extend, perpendicularly, from said lower surface 73.
  • the electrical assembly 10 further comprises an active cooling module (not shown in the figures) installed on a second surface of the chassis 7, the second surface being opposite said first surface on which said cavity 71 is formed.
  • the active cooling module comprises for example a coolant inlet and a coolant outlet.
  • a cooling liquid e.g. water
  • Each leg and the windings 510 and 520 wound on said leg are considered as a branch of the magnetic component 300. As illustrated in FIG. 32 and windings 510 and 520 wound on inner leg 32.
  • Side leg 41 includes side leg 31 of ferromagnetic core 30 and windings 510 and 520 wound on side leg 31 .
  • Side branch 43 includes side leg 33 and corresponding windings 510 and 520.
  • the electrical assembly 10 comprises winding supports 61 (also referred to as "coil formers") each of which is intended to receive one of the branches 41, 42 or 43 of the magnetic component 300.
  • winding supports 61 which corresponds to one of the branches 41 to 43, is installed between the leg of said leg and the windings 510 and 520, so as to position the windings 510, 520 on said leg.
  • FIG. 5 to 9 illustrate the structure and shape of the winding support 61
  • Figures 5 to 7 illustrate the support of windings 61 from different perspectives.
  • Figures 8 and 9 illustrate, from two different perspectives, a cross section AA of the winding support 61 as shown in Figure 5.
  • the winding support 61 comprises a tube 618, end plates 612, 613 and at least one intermediate plate 615.
  • the winding supports 61 are preferably made of plastic material or xxx.
  • the tube 618 of the winding support 61 allows the leg to pass through it.
  • the tube 618 has a cross section greater than or equal to that of said leg received by the tube 618.
  • the cross section of the tube 618 is perpendicular to a longitudinal axis of the said tube 618 which is for example parallel with the "x" axis in Figure 5.
  • the three axes x, y, z represent three dimensions of a space in which the winding support 61 exists.
  • the cross section of said leg is orthogonal to a longitudinal axis of said leg of the ferromagnetic core 30.
  • Said two cross sections are square or rectangular in shape.
  • the cross sections can be round in shape.
  • the invention is not limited to the shape of the cross section of the tube 618 or that of the leg received by the tube 618.
  • the winding support 61 receiving said leg further comprises a wedging protrusion 83 formed on an internal surface of the tube 618, so as to define said air gap which is a space between the two half-legs of the leg, the two half-legs facing each other. More precisely, the two half-legs, respectively belonging to the ferromagnetic half-cores 30a and 30b, come into abutment on the wedging protrusion 83 of the winding support 61 .
  • the magnetic component 300 has air gaps which are defined by the winding supports 61 and which are identical on the legs of the ferromagnetic core 30.
  • wedging protrusion 83 is also configured to guarantee the insertion of the half-legs in the tube 618 and to center said air gap with respect to the windings 510, 520 wound on the tube 618 of the winding support 61 .
  • the wedging protuberance 83 is preferably formed perpendicular to said inner surface of tube 618 and around said inner surface.
  • the wedging protrusion 83 has a height 83h perpendicular to said internal surface of the tube 618, and a thickness 83e parallel to the longitudinal axis of said tube 618.
  • the dimension of said air gap is defined according to the thickness 83e of the protrusion wedging 83.
  • Said height 83h is preferably between 0.8 and 5 mm (millimeter).
  • Said thickness 83e is preferably between 0.5 and 2.5 mm, for example 1 mm.
  • a section of the wedging protrusion 83, being transverse to the longitudinal axis of said tube 618, has the shape of a ring.
  • the wedging protuberance 83 is, as illustrated in FIGS. 8 and 9, formed at the level of at least one intermediate plate 615 which separates the windings 510, 520 wound on the tube 618.
  • the thickness 83e of the wedging protuberance 83 is uniform.
  • the wedging protuberance 83 comprises first and second portions 83a and 83b which have different thicknesses. The first portion 83a, with respect to the second portion 83b, is a portion of the wedging protrusion 83 closer to a central axis inside the tube 618.
  • the first portion 83a has, with respect to the rest of the wedging protrusion 83 (ie the second portion 83b which has for example 1 mm), a reduced thickness such as 0.9 mm.
  • a difference in thickness between the portions 83a and 83b of the wedging protrusion 83 is configured to guarantee the insertion of the half-legs of the leg into the tube 618 as well as to define said air gap.
  • a glue used can spread in a dedicated cavity.
  • a receiving cavity 9 being a space between portions 83p and 83q of the wedging protrusion 83 facing each other (as illustrated in FIGS. 7 and 8), is defined by the wedging protrusion 83.
  • the air gap is formed without the presence of additional elements.
  • said air gap defined for example by the manufacturer of the magnetic component 300, is formed with other portions of the winding support 61 as a single piece manufactured for example by molding. It is therefore simple to form identical air gaps on the legs of the ferromagnetic core 30.
  • the first and the second end plates 612, 613, and the at least one intermediate plate 615 of the winding support 61 are formed on an outer surface of the tube 618, so as to receive the windings (510 , 520) of the branch (41, 42 or 43).
  • End plates 612, 613 and the at least one intermediate plate 615 are perpendicular to the longitudinal axis of said tube 618.
  • the end plates 612, 613 and the at least one intermediate plate 615 are both parallel to each other other and perpendicular to tube 618.
  • the number of intermediate plates 615 is determined according to the number of windings of the branch.
  • the winding support 61 may comprise two intermediate plates 615.
  • the winding support 61 comprises a single intermediate plate 615 , as described in Figures 2 to 9.
  • the winding zones respectively configured to receive one of the windings of the branch, are respectively delimited by the external surface of the tube 618 and the two adjacent plates among the end plates 612, 613 and the at least one intermediate plate 615.
  • a first winding zone 91 intended to receive the primary winding 510 of the branch (eg the branch 41), is delimited by the end plate 612, the external surface of the tube 618 and the intermediate plate 615.
  • a second winding zone 92 intended to receive the secondary winding 520 of said branch, is delimited by the end plate 613, the external surface of the tube 618 and the intermediate plate 615.
  • the primary winding 510 and the secondary winding 520 are wound on the winding support 61 which fits on the two ferromagnetic half-cores 30a and 30b.
  • the winding support 61 further comprises at least one distancing wall 85 configured to distance at least one of the windings 510 and 520 from said air gap, so as to reduce magnetic losses by fringe effect.
  • the at least one distancing wall 85 formed on the outer surface of said tube 618, is located opposite the wedging protrusion 83.
  • the at least one distancing wall 85 has a thickness 85th parallel to the longitudinal axis of said tube 618. Said thickness 85th is preferably between 0.8 and 4 mm. In a preferred embodiment, the thickness 85e of the at least one distancing wall 85 is preferably uniform.
  • the at least one distancing wall 85 is formed perpendicular to said outer surface of tube 618 and around said outer surface.
  • the at least one distancing wall 85 is formed at the level of the at least one intermediate plate 615, as illustrated in FIGS. 6, 8 and 9.
  • the winding support 61 comprises a single distancing wall 85.
  • the winding support 61 may include several distancing walls 85, each of which is located at the level of one of the intermediate plates 615.
  • the at least one distancing wall 85 can be formed in the second winding zone 92 (as illustrated in FIGS. 5 to 9) or in the first winding zone 91 .
  • the at least one distancing wall 85 comprises two distancing walls respectively formed in the first winding zone 91 and in the second winding zone 92.
  • the two distancing walls are preferably similar or even identical to the example of the distancing wall 85 above in terms of shape, structure and/or size.
  • the thicknesses of the two distancing walls can be respectively between 0.8 and 3 mm, for example half of the thickness 85e as described above.
  • the wedging protuberance 83 and/or the at least one distancing wall 85 are made from the material of the winding support 61.
  • the winding support 61 comprising the wedging protrusion 83 and the at least one distancing wall 85 is made in one piece, for example by molding. The manufacture of the winding support 61 and the assembly process of the magnetic component 300 as well as that of the electrical assembly 10 are thus simplified.
  • the side branches of the magnetic component 300 dissipate heat more easily towards the walls 75 of the cavity 71 .
  • the electrical assembly 10 comprises at least one mechanical lift 77 made of a material having a good suitable thermal conductivity (eg aluminum) and placed between two adjacent branches among the branches of the magnetic component 300. More specifically, one or more ski lifts 77 are placed in a space between two adjacent branches which include at least one interior branch, so as to standardize the dissipation of the heat from the two adjacent branches . More specifically, the two adjacent branches comprise either an interior branch and a side branch, or two interior branches (which may be the case where the magnetic component 300 comprises more than three branches). Thus, the temperature of at least one interior branch no longer risks being excessively high.
  • a good suitable thermal conductivity eg aluminum
  • first and a second spacing E1 and E2 are a plurality of spacings respectively located between two adjacent branches of the magnetic component 300, such as a first and a second spacing E1 and E2.
  • the first spacing is between the inner leg 42 and the side leg 41 which is adjacent to the inner leg 42.
  • the second spacing E2 is between the inner leg 42 and the side leg 43 which is adjacent to the inner leg 42.
  • one or more ski lifts 77 are placed in each of the spacings, as illustrated in FIGS. 2 and 3.
  • the at least one ski lift 77 ie the four ski lifts 77 illustrated in FIG.
  • the at least one ski lift 77 is a ski lift made of a material having a suitable thermal conductivity, for example aluminum.
  • the at least one ski lift 77 has a thickness 77e preferably greater than or equal to 3 mm.
  • the size of the electrical assembly 10 is determined according to the thickness 77e of the at least one ski lift 77. If the thickness 77e of the at least one ski lift 77 is small, the magnetic component 300 as well as the electrical assembly 10 have a reduced size.
  • the at least one mechanical lift 77 is preferably perpendicular to said lower surface 73.
  • the at least one mechanical lift 77 comes from the frame 7.
  • the frame 7 comprising the walls 75 and the ski lifts 77 is made in one piece, for example by molding.
  • the invention makes it possible, as mentioned previously, to form in a simple manner in terms of the manufacture and/or of the assembly process of the magnetic component and of the electrical assembly, the identical air gaps on the legs of the ferromagnetic core.
  • the winding supports according to the invention make it possible to guarantee the insertion of the half-legs in the tubes of the winding supports, and to center the air gaps with respect to the windings wound on said tubes.
  • the invention also makes it possible to reduce the magnetic losses generated if the windings wound on the winding supports are not far enough from the air gaps.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

The invention relates to a winding support (61) comprising a tube (618) for receiving one of the legs (31, 32, 33) of a ferromagnetic core (30) of a magnetic component (300) such that half-legs of said leg face each other in the tube (618), the magnetic component (300) further comprising windings (510, 520) which correspond to said leg and which are wound on the tube (618). The winding support comprises a wedging protrusion (83) and at least one spacing wall (85). The wedging protrusion (83) is formed on an inner surface of the tube (618) so as to define an air gap between the opposing half-legs. The at least one spacing wall (85), which is formed opposite the wedging protrusion (83) and on an outer surface of the tube (618), is configured to keep at least one of the windings (510, 520) away from the air gap.

Description

DESCRIPTION DESCRIPTION
Titre de l’invention : Un support d’enroulements pour un composant magnétique d’un ensemble électrique Title of the invention: A winding support for a magnetic component of an electrical assembly
DOMAINE TECHNIQUE ET OBJET DE L’INVENTION TECHNICAL FIELD AND SUBJECT OF THE INVENTION
[0001] La présente invention concerne le domaine des équipements électriques et des composants magnétiques, notamment pour véhicule. The present invention relates to the field of electrical equipment and magnetic components, in particular for vehicles.
[0002] Plus précisément, la présente invention vise des supports d'enroulement pour des composants magnétiques, notamment pour des transformateurs électriques, permettant de garantir des entrefers de noyaux ferromagnétiques et configurés pour minimiser les perturbations électromagnétiques. More specifically, the present invention relates to winding supports for magnetic components, in particular for electrical transformers, making it possible to guarantee air gaps of ferromagnetic cores and configured to minimize electromagnetic disturbances.
ETAT DE LA TECHNIQUE STATE OF THE ART
[0003] De nombreux systèmes, notamment des véhicules électriques ou hybrides, comprennent des équipements électriques et des composants magnétiques tel qu’un transformateur électrique permettant le transfert d’énergie électrique d’un circuit primaire à un circuit secondaire. [0003] Many systems, in particular electric or hybrid vehicles, comprise electrical equipment and magnetic components such as an electrical transformer allowing the transfer of electrical energy from a primary circuit to a secondary circuit.
[0004] Comme cela est connu, dans un transformateur électrique, on utilise un noyau magnétique et des enroulements dans lesquels circule un courant électrique qui génère un champ magnétique permettant le transfert d’énergie électrique du circuit primaire au circuit secondaire. Plus précisément, dans un transformateur électrique, en particulier dans un convertisseur de puissance à inductance magnétisante ou dans un convertisseur de puissance résonnant, on a un enroulement primaire et un ou plusieurs enroulements secondaires, enroulés autour d’un noyau magnétique, entre lesquels est transférée de l’énergie électrique. As is known, in an electric transformer, a magnetic core and windings are used in which an electric current flows which generates a magnetic field allowing the transfer of electric energy from the primary circuit to the secondary circuit. More specifically, in an electrical transformer, in particular in a magnetizing inductance power converter or in a resonant power converter, there is a primary winding and one or more secondary windings, wound around a magnetic core, between which is transferred electrical energy.
[0005] Un transformateur électrique pour un véhicule électrique ou hybride comprend en général deux jambes dont chacune est composée d’une partie du noyau magnétique avec des enroulements. Néanmoins, vu la grande plage de densité de puissance, par exemple la plage comprise entre 7 kW et 22 kW, il est prévu d’un transformateur comprenant trois ou même plus de jambes afin de s’adapter à l’exigence de la densité de puissance élevée. [0005] An electric transformer for an electric or hybrid vehicle generally comprises two legs, each of which is composed of a part of the magnetic core with windings. However, in view of the large power density range, for example the range between 7 kW and 22 kW, a transformer is provided with three or even more legs in order to accommodate the requirement of power density. high power.
[0006] Il n’existe toutefois très peu de produits transformateurs à trois jambes, comme le transformateur 3 à trois jambes illustré sur la figure 1 , pour véhicule électrique ou hybride. Le transformateur 3 est un transformateur électrique triphasé comprenant un noyau ferromagnétique 30 et ses trois jambes comprenant une jambe intérieure 32 et deux jambes latérales 31 , 33. Sur chacune des jambes 31 , 32, 33, un enroulement primaire 510 et un enroulement secondaire 520 sont enroulés sur de différentes portions de la jambe 31 , 32 ou 33. On connaît notamment des demi-noyaux ferromagnétiques 30a et 30b en forme E, comme représenté sur la figure 1 . [0006] However, there are very few three-legged transformer products, such as the three-legged transformer 3 illustrated in FIG. 1, for an electric or hybrid vehicle. The transformer 3 is a three-phase electrical transformer comprising a ferromagnetic core 30 and its three legs comprising an inner leg 32 and two side legs 31, 33. On each of the legs 31, 32, 33, a primary winding 510 and a secondary winding 520 are wound on different portions of the leg 31, 32 or 33. Ferromagnetic half-cores 30a and 30b in the form E are known in particular, as represented in figure 1 .
[0007] Les enroulements primaires 510 sont enroulés sur le demi-noyau ferromagnétique 30a, et les enroulements secondaires 520 sont enroulés sur le demi-noyau ferromagnétique 30b. Le noyau ferromagnétique 30 avec les enroulements primaires 510 et secondaires 520 sont logés dans un radiateur faisant partie d’un châssis généralement constitué d’un matériau présentant une bonne conductivité thermique, adaptée pour dissiper de la chaleur produite par ledit transformateur 3. The primary windings 510 are wound on the ferromagnetic half-core 30a, and the secondary windings 520 are wound on the ferromagnetic half-core 30b. The ferromagnetic core 30 with the primary 510 and secondary 520 windings are housed in a radiator forming part of a frame generally made of a material with good thermal conductivity, suitable for dissipating the heat produced by said transformer 3.
[0008] Chacune des trois jambes 31 , 32, 33 est formée de deux demi-jambes dont une fait partie du premier demi-noyau ferromagnétique 30a et l’autre fait partie du deuxième demi-noyau ferromagnétique 30b. Les deux demi-jambes de la jambe 31 , 32, ou 33 sont en vis-à-vis séparées par un entrefer (« air gap » en anglais) 801 qui est un espace entre les deux demi-jambes, comme illustré en figure 1 . L’entrefer 801 permet, en aplatissant la courbe d'hystérésis et en diminuant la perméabilité du noyau ferromagnétique 30, une meilleure gestion de l'énergie. Each of the three legs 31, 32, 33 is formed by two half-legs, one of which is part of the first ferromagnetic half-core 30a and the other is part of the second ferromagnetic half-core 30b. The two half-legs of the leg 31, 32, or 33 are facing each other separated by an air gap 801 which is a space between the two half-legs, as illustrated in Figure 1 . The air gap 801 allows, by flattening the hysteresis curve and decreasing the permeability of the ferromagnetic core 30, better energy management.
[0009] Pour le transformateur triphasé 3, les trois entrefers sur les trois jambes 31 , 32, 33 devraient être identiques, quel que soit si les longueurs des demi-jambes des jambes 31 , 32, 33 sont identiques. Dans un exemple où les deux demi-jambes de la jambe intérieure 32 sont plus courtes que celles des jambes latérales 31 et 33 qui présentent la même longueur, la distance entre les deux demi-jambes de la jambe intérieure 32 peut être supérieure à celle entre deux demi-jambes de la jambe latérale 31 ou 33. Il n’est néanmoins pas souhaité que l’entrefer sur jambe intérieure 32 est supérieur à celui sur la jambe latérale 31 ou 33. [0009] For the three-phase transformer 3, the three air gaps on the three legs 31, 32, 33 should be identical, regardless of whether the lengths of the half-legs of the legs 31, 32, 33 are identical. In an example where the two half-legs of the inner leg 32 are shorter than those of the side legs 31 and 33 which have the same length, the distance between the two half-legs of the inner leg 32 can be greater than that between two half-legs of the lateral leg 31 or 33. It is nevertheless not desired that the air gap on the inner leg 32 be greater than that on the lateral leg 31 or 33.
[0010] Afin de garantir que l’entrefer sur la jambe intérieure 32 est identique à celui sur la jambe latérale 31 ou 33, une plaque d’épaisseur additionnelle peut être ajoutée à une des deux demi-jambes de la jambe intérieure 32. La plaque d’épaisseur additionnelle est en matériau tel que le plastique, l’époxy, et la céramique, etc. [0010] In order to guarantee that the air gap on the inner leg 32 is identical to that on the side leg 31 or 33, an additional thickness plate can be added to one of the two half-legs of the inner leg 32. The additional thickness plate is made of material such as plastic, epoxy, and ceramic, etc.
[0011] Néanmoins, l’ajout de la plaque d’épaisseur additionnelle pourrait compliquer la fabrication et/ou le processus d’assemblage du composant magnétique. De plus, cet ajout ne garantit pas nécessairement la formation des entrefers identiques sur les jambes du noyau ferromagnétique 30. De plus, les enroulements enroulés sur la jambe 31 , 32 ou 33 du noyau ferromagnétique 30 peuvent être trop près de l’entrefer, ce qui conduirait à des pertes magnétiques par effet de frange (en anglais « fringing effect losses »). [0011] Nevertheless, the addition of the additional thickness plate could complicate the manufacture and/or the assembly process of the magnetic component. Moreover, this addition does not necessarily guarantee the formation of identical air gaps on the legs of the ferromagnetic core 30. In addition, the windings wound on the leg 31, 32 or 33 of the ferromagnetic core 30 may be too close to the air gap, which which would lead to magnetic losses by fringe effect.
[0012] Dans ce contexte, la présente invention vise donc une solution pour former de manière simple, en termes de la fabrication et/ou de processus d’assemblage du composant magnétique et de l’ensemble électrique, des entrefers identiques sur les jambes du noyau ferromagnétique. De plus, l’invention vise également une solution permettant de réduire des pertes magnétiques générées si les enroulements enroulés sur les supports d’enroulements ne sont pas suffisamment à distance des entrefers. [0012] In this context, the present invention therefore aims at a solution for forming in a simple manner, in terms of the manufacturing and/or assembly process of the component magnetic and the electrical assembly, identical air gaps on the legs of the ferromagnetic core. Furthermore, the invention also aims at a solution making it possible to reduce the magnetic losses generated if the windings wound on the winding supports are not sufficiently far from the air gaps.
PRESENTATION GENERALE DE L’INVENTION GENERAL PRESENTATION OF THE INVENTION
[0013] A cette fin, la présente invention vise un support d'enroulements comprenant un tube destiné à recevoir une des jambes d’un noyau ferromagnétique d’un composant magnétique, de manière que des demi-jambes de ladite jambe sont en vis-à-vis dans le tube, le composant magnétique comprenant en outre des enroulements qui correspondent à ladite jambe et qui sont enroulés sur le tube. Ledit support d'enroulements comprend une excroissance de calage et au moins un muret d’éloignement. L’excroissance de calage est formée sur une surface interne du tube, de sorte à définir un entrefer entre lesdites demi-jambes en vis-à-vis. L’au moins un muret d’éloignement, formé en vis-à-vis de l’excroissance de calage et sur une surface externe dudit tube, est configuré pour éloigner au moins un des enroulements dudit entrefer. To this end, the present invention relates to a winding support comprising a tube intended to receive one of the legs of a ferromagnetic core of a magnetic component, so that the half-legs of said leg are opposite. in the tube, the magnetic component further comprising windings which correspond to said leg and which are wound on the tube. Said winding support comprises a wedging protrusion and at least one distancing wall. The wedging protrusion is formed on an internal surface of the tube, so as to define an air gap between said half-legs facing each other. The at least one distancing wall, formed opposite the wedging protrusion and on an outer surface of said tube, is configured to distance at least one of the windings from said air gap.
[0014] L’invention permet ainsi de former, de manière simple en termes de la fabrication et/ou de processus d’assemblage du composant magnétique et de l’ensemble électrique, des entrefers identiques sur les jambes du noyau ferromagnétique. Les supports d'enroulements selon l’invention permettent de garantir l’insertion des demi-jambes dans les tubes des supports d'enroulements, et de centrer les entrefers par rapport aux enroulements enroulés sur lesdits tubes. De plus, l’invention permet également de réduire des pertes magnétiques générées si les enroulements enroulés sur les supports d’enroulements ne sont pas suffisamment loin des entrefers. The invention thus makes it possible to form, in a simple manner in terms of the manufacture and/or of the assembly process of the magnetic component and of the electrical assembly, identical air gaps on the legs of the ferromagnetic core. The winding supports according to the invention make it possible to guarantee the insertion of the half-legs in the tubes of the winding supports, and to center the air gaps with respect to the windings wound on said tubes. In addition, the invention also makes it possible to reduce the magnetic losses generated if the windings wound on the winding supports are not far enough from the air gaps.
[0015] Avantageusement, l’excroissance de calage, présentant une épaisseur parallèle à un axe longitudinal dudit tube, est formée de manière orthogonale à ladite surface interne du tube ; la dimension dudit entrefer étant définie en fonction de l’épaisseur de l’excroissance de calage. Advantageously, the wedging protrusion, having a thickness parallel to a longitudinal axis of said tube, is formed orthogonally to said internal surface of the tube; the dimension of said air gap being defined according to the thickness of the wedging protrusion.
[0016] De manière préférentielle, une section de l’excroissance de calage, étant transverse à l'axe longitudinal dudit tube, présente une forme d’anneau ; ladite hauteur étant perpendiculaire à ladite surface interne du tube. Preferably, a section of the wedging protrusion, being transverse to the longitudinal axis of said tube, has the shape of a ring; said height being perpendicular to said internal surface of the tube.
[0017] De façon avantageuse, le support d'enroulements comprend une cavité de réception défini par l’excroissance de calage pour qu’une colle utilisée lors de la fabrication du composant magnétique puisse se répandre dans ladite cavité de réception ; ladite cavité de réception étant un espace entre des portions de l’excroissance de calage en vis-à-vis. [0018] Préférentiellement, l’au moins un muret d’éloignement, présentant une épaisseur parallèle à l’axe longitudinal dudit tube, est formé de manière perpendiculaire à la surface externe du tube. [0017] Advantageously, the winding support comprises a receiving cavity defined by the wedging protrusion so that an adhesive used during the manufacture of the magnetic component can spread into said receiving cavity; said receiving cavity being a space between portions of the wedging protrusion facing each other. Preferably, the at least one distancing wall, having a thickness parallel to the longitudinal axis of said tube, is formed perpendicular to the outer surface of the tube.
[0019] Avantageusement, une section de l’au moins un muret d’éloignement, étant transverse à l'axe longitudinal dudit tube, présente une forme d’anneau. [0019] Advantageously, a section of the at least one distancing wall, being transverse to the longitudinal axis of said tube, has the shape of a ring.
[0020] De manière préférentielle, l’épaisseur de l’excroissance de calage et/ou l’épaisseur de l’au moins un muret d’éloignement sont uniformes. [0020] Preferably, the thickness of the wedging protuberance and/or the thickness of the at least one distancing wall are uniform.
[0021] De façon avantageuse, l’excroissance de calage et/ou l’au moins un muret d’éloignement sont formés au niveau d’une plaque intermédiaire ; ladite plaque intermédiaire séparant les enroulements enroulés sur le tube du support d’enroulements. [0021] Advantageously, the wedging protuberance and/or the at least one distancing wall are formed at an intermediate plate; said intermediate plate separating the windings wound on the tube from the winding support.
[0022] Préférentiellement, l’excroissance de calage et/ou l’au moins un muret d’éloignement sont issus de matière du support d'enroulements. [0022] Preferably, the wedging protrusion and/or the at least one distancing wall are made from the material of the winding support.
[0023] Avantageusement, le support d'enroulements est d’un seul tenant fabriqué par moulage. [0023] Advantageously, the winding support is made in one piece by molding.
[0024] De manière préférentielle, le support d'enroulements est en matériau plastique. [0024] Preferably, the winding support is made of plastic material.
[0025] De façon avantageuse, le support d'enroulements est configuré pour être logé dans une cavité d’un châssis comprenant des remontées mécaniques, de façon à ce que lesdites remontées mécaniques se trouvent placées dans un espacement entre deux jambes adjacentes du noyau ferromagnétique. [0025] Advantageously, the winding support is configured to be housed in a cavity of a frame comprising ski lifts, so that said ski lifts are placed in a space between two adjacent legs of the ferromagnetic core. .
[0026] L’invention concerne également un ensemble électrique comprenant un composant magnétique et des supports d'enroulements, lesdits supports d'enroulements comprenant chacun un tube configuré pour recevoir des demi-jambes d’une de plusieurs jambes d’un noyau ferromagnétique dudit composant magnétique ; pour chacune desdites jambes, le composant magnétique comprenant en outre des enroulements qui correspondent à ladite jambe et qui sont enroulés sur le tube dans lequel les demi-jambes de la jambe sont en vis-à-vis. Chacun des supports d'enroulements dudit ensemble électrique comprend une excroissance de calage et au moins un muret d’éloignement. L’excroissance de calage est formée sur une surface interne du tube, de sorte à définir un entrefer entre deux demi-jambes de la jambe en vis-à-vis. Ledit au moins un muret d’éloignement, formé en vis-à-vis de l’excroissance de calage et sur une surface externe dudit tube, est configuré pour éloigner au moins un des enroulements dudit entrefer. [0027] Avantageusement, le composant magnétique présente des entrefers respectivement définis par un des supports d'enroulements, les entrefers étant identiques sur les jambes du noyau ferromagnétique. The invention also relates to an electrical assembly comprising a magnetic component and winding supports, said winding supports each comprising a tube configured to receive half-legs of one of several legs of a ferromagnetic core of said magnetic component; for each of said legs, the magnetic component further comprising windings which correspond to said leg and which are wound on the tube in which the half-legs of the leg face each other. Each of the winding supports of said electrical assembly comprises a wedging protrusion and at least one distancing wall. The wedging protrusion is formed on an internal surface of the tube, so as to define an air gap between two half-legs of the leg facing each other. Said at least one distance wall, formed vis-à-vis the wedging protrusion and on an outer surface of said tube, is configured to distance at least one of the windings from said air gap. Advantageously, the magnetic component has air gaps respectively defined by one of the winding supports, the air gaps being identical on the legs of the ferromagnetic core.
[0028] De manière préférentielle, l’ensemble électrique comprend un châssis et des remontées mécaniques. Ledit châssis comprend une cavité dans laquelle les supports d'enroulements ainsi que le composant magnétique sont logés. Les remontées mécaniques sont placées dans un espacement entre deux jambes adjacentes du noyau ferromagnétique, de sorte à uniformiser la dissipation de la chaleur générée lors du fonctionnement du composant magnétique. [0028] Preferably, the electrical assembly comprises a frame and mechanical lifts. Said frame comprises a cavity in which the winding supports as well as the magnetic component are housed. The ski lifts are placed in a gap between two adjacent legs of the ferromagnetic core, so as to even out the dissipation of the heat generated during the operation of the magnetic component.
[0029] L’invention concerne en outre un équipement électrique comprenant un ensemble électrique décrit ci-dessus. The invention further relates to electrical equipment comprising an electrical assembly described above.
PRESENTATION DES FIGURES PRESENTATION OF FIGURES
[0030] L’invention sera mieux comprise à la lecture de la description qui va suivre, donnée uniquement à titre d’exemple, et se référant aux dessins annexés donnés à titre d’exemples non limitatifs, dans lesquels des références identiques sont données à des objets semblables et sur lesquels : The invention will be better understood on reading the following description, given solely by way of example, and referring to the accompanying drawings given by way of non-limiting examples, in which identical references are given to similar objects and on which:
[0031] la figure 1 est une représentation schématique d’un transformateur électrique à trois jambes connu ; [0031] Figure 1 is a schematic representation of a known three-leg electrical transformer;
[0032] la figure 2 illustre un ensemble électrique comprenant un transformateur électrique à trois jambes logé dans un châssis, selon un mode de réalisation de l’invention ; [0032] Figure 2 illustrates an electrical assembly comprising a three-leg electrical transformer housed in a frame, according to one embodiment of the invention;
[0033] la figure 3 illustre, sans présence des enroulements d’une branche du composant magnétique, l’ensemble électrique selon un mode de réalisation de l’invention ; [0033] Figure 3 illustrates, without the presence of the windings of a branch of the magnetic component, the electrical assembly according to one embodiment of the invention;
[0034] la figure 4 illustre, sans présence du composant magnétique, le châssis comprenant des remontées mécaniques, selon un mode de réalisation de l’invention ; [0034] Figure 4 illustrates, without the presence of the magnetic component, the frame comprising ski lifts, according to one embodiment of the invention;
[0035] la figure 5 illustre un support d'enroulements selon un mode de réalisation de l’invention ; [0035] Figure 5 illustrates a winding support according to one embodiment of the invention;
[0036] la figure 6 illustre le support d'enroulements selon une perspective différente de celle de la figure 5 ; Figure 6 illustrates the winding support from a perspective different from that of Figure 5;
[0037] la figure 7 illustre le support d'enroulements selon une perspective différente de celles des figures 5 et 6 ; [0038] la figure 8 illustre la coupe transversale A-A du support d'enroulements de la figure 5 ; Figure 7 illustrates the winding support from a perspective different from those of Figures 5 and 6; [0038] Figure 8 illustrates the cross section AA of the winding support of Figure 5;
[0039] la figure 9 illustre, selon une perspective différente de celle de la figure 8, la coupe transversale A-A du support d'enroulements. [0039] Figure 9 illustrates, from a perspective different from that of Figure 8, the cross section A-A of the winding support.
[0040] Il faut noter que les figures exposent l’invention de manière détaillée pour mettre en oeuvre l’invention, lesdites figures pouvant bien entendu servir à mieux définir l’invention le cas échéant. It should be noted that the figures expose the invention in detail to implement the invention, said figures can of course be used to better define the invention if necessary.
DESCRIPTION DETAILLEE DE L’INVENTION DETAILED DESCRIPTION OF THE INVENTION
[0041 ] Les figure 2 et 3 illustrent un ensemble électrique 10 selon un mode de réalisation de l’invention. L’ensemble électrique 10 comprend un composant magnétique 300 et un châssis 7 configuré pour recevoir le composant magnétique 300. [0041] Figures 2 and 3 illustrate an electrical assembly 10 according to one embodiment of the invention. The electrical assembly 10 comprises a magnetic component 300 and a frame 7 configured to receive the magnetic component 300.
[0042] L’ensemble électrique 10 et ses éléments sont notamment prévus pour un véhicule électrique ou hybride. L’ensemble électrique 10 selon l’invention est ainsi par exemple destiné à être intégré dans un équipement électrique tel qu’un module de puissance électronique du véhicule. Le module de puissance électronique est configuré pour permettre un passage commandé d’énergie électrique entre une batterie d’alimentation haute tension et une machine électrique du véhicule. Plus précisément, par « module électronique de puissance », on entend un ensemble comprenant des composants par lesquels passe de l’énergie alimentant la machine électrique, notamment destinés à transformer le courant continu en courants alternatifs ou vice- versa. Ces composants peuvent comprendre des interrupteurs électroniques, tels que par exemple des transistors semi-conducteurs, agencés en circuit électrique pour permettre un passage commandé d’énergie électrique entre la batterie d’alimentation haute tension et la machine électrique. En particulier, les composants sont des puces semi-conductrices nues pour lesquels le corps réalise une encapsulation. Autrement dit, un module électronique de puissance est un ensemble comprenant une pluralité de puces semi-conductrices formant un circuit électrique encapsulées dans un même boîtier. [0042] The electrical assembly 10 and its elements are in particular intended for an electric or hybrid vehicle. The electrical assembly 10 according to the invention is thus for example intended to be integrated into electrical equipment such as an electronic power module of the vehicle. The electronic power module is configured to allow controlled passage of electrical energy between a high voltage supply battery and an electrical machine of the vehicle. More specifically, “electronic power module” means an assembly comprising components through which the energy supplying the electrical machine passes, in particular intended to transform direct current into alternating currents or vice versa. These components may comprise electronic switches, such as for example semiconductor transistors, arranged in an electrical circuit to allow a controlled passage of electrical energy between the high voltage supply battery and the electrical machine. In particular, the components are bare semiconductor chips for which the body realizes an encapsulation. In other words, a power electronic module is an assembly comprising a plurality of semiconductor chips forming an electrical circuit encapsulated in a single package.
[0043] Le composant magnétique 300 comprend un noyau ferromagnétique comprenant une pluralité de jambes. Les jambes comprennent au moins une jambe intérieure qui est pris en sandwich entre deux jambes adjacentes du composant magnétique 300. Autrement dit, l’au moins une jambe intérieure n’est pas adjacente à des parois 75 d’une cavité 71 formée dans le châssis 7 pour recevoir le composant magnétique 300. Les jambes comprennent en outre des jambes latérales qui sont à la fois adjacentes aux parois 75 de la cavité 71 et à l’au moins une jambe intérieure. [0044] Dans le présent mode de réalisation, ledit composant magnétique 300 est un transformateur à trois jambes présentant une structure similaire à celle du transformateur 3 comme décrit ci-dessus et en figure 1. Ainsi, des éléments du composant magnétique 300 qui présentent des fonctions et des noms similaires voire identiques à ceux du transformateur 3, sont indiqués par les mêmes numéros de référence (e.g. des jambes 31 à 33). L'invention n'est pas limitée au type de composant magnétique ou au nombre de jambes. Selon l’invention, le composant magnétique 300 peut être par exemple un convertisseur présentant un noyau ferromagnétique comprenant plus de trois jambes. The magnetic component 300 includes a ferromagnetic core comprising a plurality of legs. The legs include at least one interior leg which is sandwiched between two adjacent legs of the magnetic component 300. In other words, the at least one interior leg is not adjacent to walls 75 of a cavity 71 formed in the frame. 7 to receive the magnetic component 300. The legs further include side legs which are both adjacent to the walls 75 of the cavity 71 and to the at least one interior leg. In the present embodiment, said magnetic component 300 is a three-legged transformer having a structure similar to that of transformer 3 as described above and in FIG. 1. Thus, elements of magnetic component 300 which have functions and names similar or even identical to those of transformer 3 are indicated by the same reference numbers (eg legs 31 to 33). The invention is not limited to the type of magnetic component or the number of legs. According to the invention, the magnetic component 300 can for example be a converter having a ferromagnetic core comprising more than three legs.
[0045] Le composant magnétique 300 comprend un noyau ferromagnétique 30 qui présente trois jambes 31 , 32, 33, à savoir deux jambes latérales 31 , 33 et une jambe intérieure 32. Pour faciliter l'assemblage lors de la fabrication du composant magnétique 300, le noyau ferromagnétique 30 comprend de préférence un premier demi-noyaux ferromagnétique 30a et un deuxième demi-noyaux ferromagnétique 30b respectivement en forme E. Chacune des trois jambes 31 , 32, 33 est formée de deux demi-jambes dont une fait partie du premier demi-noyau ferromagnétique 30a et l’autre fait partie du deuxième demi-noyau ferromagnétique 30b. Dans un mode de réalisation, les demi-jambes présentent des longueurs identiques. De manière alternative, les demi-jambes présentent des longueurs différentes. Les deux demi-jambes de chaque jambe sont en vis-à-vis séparées par un entrefer qui permet, en aplatissant la courbe d'hystérésis et en diminuant la perméabilité du noyau ferromagnétique 30, une meilleure gestion de l'énergie. The magnetic component 300 comprises a ferromagnetic core 30 which has three legs 31, 32, 33, namely two side legs 31, 33 and an inner leg 32. To facilitate assembly during manufacture of the magnetic component 300, the ferromagnetic core 30 preferably comprises a first ferromagnetic half-core 30a and a second ferromagnetic half-core 30b respectively in E shape. -ferromagnetic core 30a and the other is part of the second ferromagnetic half-core 30b. In one embodiment, the half-legs have identical lengths. Alternatively, the half-legs have different lengths. The two half-legs of each leg are opposite each other separated by an air gap which allows, by flattening the hysteresis curve and reducing the permeability of the ferromagnetic core 30, better energy management.
[0046] Dans un exemple où le composant magnétique 300 est un transformateur électrique triphasé, chaque jambe 31 , 32, 33 correspond à une phase du transformateur électrique triphasé. Pour chacune des jambes 31 à 33, au moins deux enroulements sont disposés. Plus précisément, sur chacune des jambes 31 à 33, un enroulement primaire 510 et au moins un enroulement secondaire 520 sont respectivement enroulés sur une des demi-jambes de la jambe. Dans l’exemple illustré en figure 2, sur chaque jambes 31 , 32, 33 un seul enroulement secondaire 520 est présent. Les enroulements primaires 510 sont enroulés sur les demi-jambes qui font partie du demi-noyau ferromagnétique 30a alors que les enroulements secondaires 520 sont enroulés sur les demi-jambes qui font partie du demi-noyau ferromagnétique 30b. Il est noté que l'invention n'est pas limitée à la réalisation du composant magnétique 300. In an example where the magnetic component 300 is a three-phase electrical transformer, each leg 31, 32, 33 corresponds to a phase of the three-phase electrical transformer. For each of the legs 31 to 33, at least two windings are arranged. More specifically, on each of the legs 31 to 33, a primary winding 510 and at least one secondary winding 520 are respectively wound on one of the half-legs of the leg. In the example illustrated in Figure 2, on each leg 31, 32, 33 a single secondary winding 520 is present. The primary windings 510 are wound on the half-legs which form part of the ferromagnetic half-core 30a while the secondary windings 520 are wound on the half-legs which form part of the ferromagnetic half-core 30b. It is noted that the invention is not limited to the production of the magnetic component 300.
[0047] La figure 4 illustre, sans présence du composant magnétique 300, le châssis 7 comprenant des remontées mécaniques 77 (qui seront décrites en détail ultérieurement), selon un mode de réalisation de l’invention. Le châssis 7 forme de préférence un radiateur 7 de dissipation thermique qui sert de module de refroidissement passif configuré pour favoriser la dissipation de la chaleur générée lors du fonctionnement du composant magnétique 300. Le radiateur 7 peut être un élément existant du véhicule électrique ou hybride où le composant magnétique 300 est installé. Le châssis 7 est de préférence constitué d’un matériau présentant une bonne conductivité thermique, par exemple l’aluminium. Figure 4 illustrates, without the presence of the magnetic component 300, the frame 7 comprising ski lifts 77 (which will be described in detail later), according to one embodiment of the invention. The chassis 7 preferably forms a heat dissipation radiator 7 which serves as a passive cooling module configured to favor the dissipation of the heat generated during the operation of the magnetic component 300. The radiator 7 can be an existing element of the electric or hybrid vehicle where the component magnet 300 is installed. The frame 7 is preferably made of a material having good thermal conductivity, for example aluminum.
[0048] Ladite cavité 71 , formée dans le châssis 7 pour recevoir au moins un support d'enroulements 61 (qui sera décrit en détail ultérieurement) ainsi que le composant magnétique 300, est délimitée par les parois 75 ainsi que par une surface inférieure 73 faisant partie d’une première surface du châssis 7. La surface inférieure 73 est le fond de la cavité 71 . Les parois 75 sont de préférence perpendiculaires de ladite surface inférieure 73. Dans un mode de réalisation avantageux, les parois 75 s'étendent, de manière perpendiculaire, depuis ladite surface inférieure 73. [0048] Said cavity 71, formed in frame 7 to receive at least one winding support 61 (which will be described in detail later) as well as the magnetic component 300, is delimited by the walls 75 as well as by a lower surface 73 forming part of a first surface of the frame 7. The lower surface 73 is the bottom of the cavity 71 . The walls 75 are preferably perpendicular to said lower surface 73. In an advantageous embodiment, the walls 75 extend, perpendicularly, from said lower surface 73.
[0049] Selon un mode de réalisation, l’ensemble électrique 10 comprend en outre un module de refroidissement actif (non illustré en figures) installé à une deuxième surface du châssis 7, la deuxième surface étant opposée à ladite première surface sur laquelle ladite cavité 71 est formée. Le module de refroidissement actif comporte par exemple une entrée de liquide de refroidissement et une sortie de liquide de refroidissement. Un liquide de refroidissement (e.g. l’eau) circule dans des canaux situés dans le module de refroidissement actif, de sorte à refroidir le châssis 7, le composant magnétique 300 et d’autres éléments disposés à proximité. According to one embodiment, the electrical assembly 10 further comprises an active cooling module (not shown in the figures) installed on a second surface of the chassis 7, the second surface being opposite said first surface on which said cavity 71 is formed. The active cooling module comprises for example a coolant inlet and a coolant outlet. A cooling liquid (e.g. water) circulates in channels located in the active cooling module, so as to cool the frame 7, the magnetic component 300 and other elements arranged nearby.
[0050] Chaque jambe et les enroulements 510 et 520 enroulés sur ladite jambe, sont considérés comme une branche du composant magnétique 300. Comme illustré en figure 2, le composant magnétique 300 comprend trois branches 41 à 43 dont la branche intérieure 42 comprend la jambe intérieure 32 et les enroulements 510 et 520 enroulés sur la jambe intérieure 32. La branche latérale 41 comprend la jambe latérale 31 du noyau ferromagnétique 30 et les enroulements 510 et 520 enroulés sur la jambe latérale 31 . La branche latérale 43 comprend la jambe latérale 33 et les enroulements 510 et 520 correspondants. [0050] Each leg and the windings 510 and 520 wound on said leg are considered as a branch of the magnetic component 300. As illustrated in FIG. 32 and windings 510 and 520 wound on inner leg 32. Side leg 41 includes side leg 31 of ferromagnetic core 30 and windings 510 and 520 wound on side leg 31 . Side branch 43 includes side leg 33 and corresponding windings 510 and 520.
[0051] Comme illustré en figure 3, l’ensemble électrique 10 comprend des supports d'enroulements 61 (également désignés « coil formers » en anglais) dont chacun est destiné à recevoir une des branches 41 , 42 ou 43 du composant magnétique 300. Un des supports d'enroulement 61 qui correspond à une des branches 41 à 43, est installé entre la jambe de ladite branche et les enroulements 510 et 520, de sorte à positionner les enroulements 510, 520 sur ladite jambe. As illustrated in Figure 3, the electrical assembly 10 comprises winding supports 61 (also referred to as "coil formers") each of which is intended to receive one of the branches 41, 42 or 43 of the magnetic component 300. One of the winding supports 61 which corresponds to one of the branches 41 to 43, is installed between the leg of said leg and the windings 510 and 520, so as to position the windings 510, 520 on said leg.
[0052] Pour décrire plus en détail la structure et la forme des support d'enroulement 61 , un exemple d’un seul support d'enroulements 61 est illustré dans les figures 5 à 9. Les figures 5 à 7 illustrent le support d'enroulements 61 selon des perspectives différentes. Les figures 8 et 9 illustrent, selon deux perspectives différentes, une coupe transversale A-A du support d'enroulements 61 comme indiqué en figure 5. [0053] Le support d'enroulements 61 comprend un tube 618, des plaques d'extrémité 612, 613 et au moins une plaque intermédiaire 615. Les supports d'enroulements 61 sont de préférence en matériau plastique ou en xxx. Le tube 618 du support d'enroulements 61 permet à la jambe de le traverser. Le tube 618 présente une section transversale supérieure ou égale à celle de ladite jambe reçue par le tube 618. La section transversale du tube 618 est perpendiculaire à un axe longitudinal dudit tube 618 qui est par exemple en parallèle avec l’axe « x » en figure 5. Les trois axes x, y, z représentent trois dimensions d’un espace dans lequel le support d'enroulements 61 existe. To describe in more detail the structure and shape of the winding support 61, an example of a single winding support 61 is illustrated in Figures 5 to 9. Figures 5 to 7 illustrate the support of windings 61 from different perspectives. Figures 8 and 9 illustrate, from two different perspectives, a cross section AA of the winding support 61 as shown in Figure 5. The winding support 61 comprises a tube 618, end plates 612, 613 and at least one intermediate plate 615. The winding supports 61 are preferably made of plastic material or xxx. The tube 618 of the winding support 61 allows the leg to pass through it. The tube 618 has a cross section greater than or equal to that of said leg received by the tube 618. The cross section of the tube 618 is perpendicular to a longitudinal axis of the said tube 618 which is for example parallel with the "x" axis in Figure 5. The three axes x, y, z represent three dimensions of a space in which the winding support 61 exists.
[0054] De manière similaire, la section transversale de ladite jambe est orthogonale à un axe longitudinal de ladite jambe du noyau ferromagnétique 30. Lesdites deux sections transversales sont de forme carrée ou rectangulaire. De manière alternative, les sections transversales peuvent être de forme ronde. L’invention n’est pas limitée à la forme de la section transversale du tube 618 ou de celle de la jambe reçue par le tube 618. Similarly, the cross section of said leg is orthogonal to a longitudinal axis of said leg of the ferromagnetic core 30. Said two cross sections are square or rectangular in shape. Alternatively, the cross sections can be round in shape. The invention is not limited to the shape of the cross section of the tube 618 or that of the leg received by the tube 618.
[0055] Le support d'enroulements 61 recevant ladite jambe comprend en outre une excroissance de calage 83 formée sur une surface interne du tube 618, de sorte à définir ledit entrefer qui est un espace entre les deux demi-jambes de la jambe, les deux demi-jambes étant en vis-à-vis. Plus précisément, les deux demi-jambes, respectivement appartenant aux demi- noyaux ferromagnétiques 30a et 30b, viennent en butée sur l’excroissance de calage 83 du support d'enroulements 61 . De manière préférentielle, le composant magnétique 300 présente des entrefers qui sont définis par les supports d'enroulements 61 et qui sont identiques sur les jambes du noyau ferromagnétique 30. The winding support 61 receiving said leg further comprises a wedging protrusion 83 formed on an internal surface of the tube 618, so as to define said air gap which is a space between the two half-legs of the leg, the two half-legs facing each other. More precisely, the two half-legs, respectively belonging to the ferromagnetic half-cores 30a and 30b, come into abutment on the wedging protrusion 83 of the winding support 61 . Preferably, the magnetic component 300 has air gaps which are defined by the winding supports 61 and which are identical on the legs of the ferromagnetic core 30.
[0056] De plus, l’excroissance de calage 83 est également configurée pour garantir l’insertion des demi-jambes dans le tube 618 et pour centrer ledit entrefer par rapport aux enroulements 510, 520 enroulés sur le tube 618 du support d'enroulements 61 . [0056] In addition, the wedging protrusion 83 is also configured to guarantee the insertion of the half-legs in the tube 618 and to center said air gap with respect to the windings 510, 520 wound on the tube 618 of the winding support 61 .
[0057] L’excroissance de calage 83 est de préférence formée de manière perpendiculaire à ladite surface interne du tube 618 et au tour de ladite surface interne. L’excroissance de calage 83 présente une hauteur 83h perpendiculaire à ladite surface interne du tube 618, et une épaisseur 83e parallèle à l’axe longitudinal dudit tube 618. La dimension dudit entrefer est définie en fonction de l’épaisseur 83e de l’excroissance de calage 83. Ladite hauteur 83h est comprise de préférence entre 0,8 et 5 mm (millimètre). Ladite épaisseur 83e est comprise de préférence entre 0.5 et 2.5 mm, par exemple 1 mm. Une section de l’excroissance de calage 83, étant transverse à l'axe longitudinal dudit tube 618, présente une forme d’anneau. De manière avantageuse, l’excroissance de calage 83 est, comme illustré en figure 8 et 9, formée au niveau de l’au moins une plaque intermédiaire 615 qui sépare les enroulements 510, 520 enroulés sur le tube 618. [0058] Dans un mode de réalisation, l’épaisseur 83e de l’excroissance de calage 83 est uniforme. Dans un mode de réalisation alternatif, l’excroissance de calage 83 comprend une première et une deuxième portions 83a et 83b qui présentent des épaisseurs différentes. La première portion 83a, par rapport à la deuxième portion 83b, est une portion de l’excroissance de calage 83 plus proche d’un axe central à l'intérieur du tube 618. La première portion 83a présente, par rapport au reste de l’excroissance de calage 83 (i.e. la deuxième portion 83b qui présente par exemple 1 mm), une épaisseur réduite telle que 0.9 mm. Une telle différence d’épaisseur entre les portions 83a et 83b de l’excroissance de calage 83, est configurée pour garantir l’insertion des demi-jambes de la jambe dans le tube 618 ainsi que pour définir ledit entrefer. The wedging protuberance 83 is preferably formed perpendicular to said inner surface of tube 618 and around said inner surface. The wedging protrusion 83 has a height 83h perpendicular to said internal surface of the tube 618, and a thickness 83e parallel to the longitudinal axis of said tube 618. The dimension of said air gap is defined according to the thickness 83e of the protrusion wedging 83. Said height 83h is preferably between 0.8 and 5 mm (millimeter). Said thickness 83e is preferably between 0.5 and 2.5 mm, for example 1 mm. A section of the wedging protrusion 83, being transverse to the longitudinal axis of said tube 618, has the shape of a ring. Advantageously, the wedging protuberance 83 is, as illustrated in FIGS. 8 and 9, formed at the level of at least one intermediate plate 615 which separates the windings 510, 520 wound on the tube 618. In one embodiment, the thickness 83e of the wedging protuberance 83 is uniform. In an alternative embodiment, the wedging protuberance 83 comprises first and second portions 83a and 83b which have different thicknesses. The first portion 83a, with respect to the second portion 83b, is a portion of the wedging protrusion 83 closer to a central axis inside the tube 618. The first portion 83a has, with respect to the rest of the wedging protrusion 83 (ie the second portion 83b which has for example 1 mm), a reduced thickness such as 0.9 mm. Such a difference in thickness between the portions 83a and 83b of the wedging protrusion 83 is configured to guarantee the insertion of the half-legs of the leg into the tube 618 as well as to define said air gap.
[0059] De plus, il est souhaité que lors de la fabrication du composant magnétique 300, une colle utilisée peut se répandre dans une cavité dédiée. A cette fin, une cavité de réception 9, étant un espace entre des portions 83p et 83q de l’excroissance de calage 83 en vis-à-vis (comme illustré en figures 7 et 8), est définie par l’excroissance de calage 83. Furthermore, it is desired that during the manufacture of the magnetic component 300, a glue used can spread in a dedicated cavity. To this end, a receiving cavity 9, being a space between portions 83p and 83q of the wedging protrusion 83 facing each other (as illustrated in FIGS. 7 and 8), is defined by the wedging protrusion 83.
[0060] L’entrefer est formé sans présence d’éléments additionnels. Autrement dit, ledit entrefer, défini par exemple par le fabricant du composant magnétique 300, est formé avec d’autres portions du support d'enroulements 61 comme un seul tenant fabriqué par exemple par moulage. Il est donc simple de former des entrefers identiques sur les jambes du noyau ferromagnétique 30. The air gap is formed without the presence of additional elements. In other words, said air gap, defined for example by the manufacturer of the magnetic component 300, is formed with other portions of the winding support 61 as a single piece manufactured for example by molding. It is therefore simple to form identical air gaps on the legs of the ferromagnetic core 30.
[0061] La première et la deuxième plaques d'extrémité 612, 613, et l’au moins une plaque intermédiaire 615 du support d'enroulements 61 , sont formées sur une surface externe du tube 618, de sorte à recevoir les enroulements (510, 520) de la branche (41 , 42 ou 43). Lesdites plaques 612, 613, 615, destinées à délimiter des zones d’enroulement configurées pour recevoir les enroulements de la branche, sont de préférence issues, de manière perpendiculaire, de la surface externe du tube 618. Les plaques d'extrémité 612, 613 et l’au moins une plaque intermédiaire 615 sont perpendiculaires à l’axe longitudinal dudit tube 618. De manière préférentielle, les plaques d'extrémité 612, 613 et l’au moins une plaque intermédiaire 615, sont à la fois parallèles les uns aux autres et perpendiculaires au tube 618. The first and the second end plates 612, 613, and the at least one intermediate plate 615 of the winding support 61, are formed on an outer surface of the tube 618, so as to receive the windings (510 , 520) of the branch (41, 42 or 43). Said plates 612, 613, 615, intended to delimit winding zones configured to receive the windings of the branch, preferably come perpendicularly from the outer surface of tube 618. End plates 612, 613 and the at least one intermediate plate 615 are perpendicular to the longitudinal axis of said tube 618. Preferably, the end plates 612, 613 and the at least one intermediate plate 615 are both parallel to each other other and perpendicular to tube 618.
[0062] Pour chaque support d'enroulement 61 , le nombre de plaques intermédiaires 615 est déterminé en fonction du nombre d’enroulements de la branche. Dans un mode de réalisation où la branche comprend trois enroulements, le support d'enroulements 61 peut comprendre deux plaques intermédiaires 615. Dans le présent mode de réalisation où la branche comprend deux enroulements, le support d'enroulements 61 comprend une seule plaque intermédiaire 615, comme décrit en figures 2 à 9. [0063] Comme mentionné précédemment, les zones d’enroulement, configurées respectivement pour recevoir un des enroulements de la branche, sont respectivement délimitées par la surface externe du tube 618 et les deux plaques adjacentes parmi les plaques d'extrémité 612, 613 et l’au moins une plaque intermédiaire 615. For each winding support 61, the number of intermediate plates 615 is determined according to the number of windings of the branch. In an embodiment where the branch comprises three windings, the winding support 61 may comprise two intermediate plates 615. In the present embodiment where the branch comprises two windings, the winding support 61 comprises a single intermediate plate 615 , as described in Figures 2 to 9. As mentioned previously, the winding zones, respectively configured to receive one of the windings of the branch, are respectively delimited by the external surface of the tube 618 and the two adjacent plates among the end plates 612, 613 and the at least one intermediate plate 615.
[0064] Selon l’exemple illustré en figures 5 à 9, une première zone d’enroulement 91 , destinée à recevoir l’enroulement primaire 510 de la branche (e.g. la branche 41 ), est délimitée par la plaque d'extrémité 612, la surface externe du tube 618 et la plaque intermédiaire 615. Une deuxième zone d’enroulement 92, destinée à recevoir l’enroulement secondaire 520 de ladite branche, est délimitée par la plaque d'extrémité 613, la surface externe du tube 618 et la plaque intermédiaire 615. De cette manière, l’enroulement primaire 510 et l’enroulement secondaire 520 sont enroulés sur le support d'enroulements 61 qui emboîte sur les deux demi-noyaux ferromagnétiques 30a et 30b. According to the example illustrated in Figures 5 to 9, a first winding zone 91, intended to receive the primary winding 510 of the branch (eg the branch 41), is delimited by the end plate 612, the external surface of the tube 618 and the intermediate plate 615. A second winding zone 92, intended to receive the secondary winding 520 of said branch, is delimited by the end plate 613, the external surface of the tube 618 and the intermediate plate 615. In this way, the primary winding 510 and the secondary winding 520 are wound on the winding support 61 which fits on the two ferromagnetic half-cores 30a and 30b.
[0065] Le support d'enroulements 61 comprend en outre au moins un muret d’éloignement 85 configuré pour éloigner au moins un des enroulements 510 et 520 dudit entrefer, de sorte à réduire des pertes magnétiques par effet de frange. Les pertes magnétiques générées si au moins un des enroulements 510, 520 enroulés sur le tube 618 du support d’enroulements 61 ne sont pas suffisamment loin dudit entrefer défini par l’excroissance de calage 83. L’au moins un muret d’éloignement 85, formé sur la surface externe dudit tube 618, se situe en vis-à-vis de l’excroissance de calage 83. The winding support 61 further comprises at least one distancing wall 85 configured to distance at least one of the windings 510 and 520 from said air gap, so as to reduce magnetic losses by fringe effect. The magnetic losses generated if at least one of the windings 510, 520 wound on the tube 618 of the winding support 61 are not far enough from said air gap defined by the wedging protuberance 83. The at least one distancing wall 85 , formed on the outer surface of said tube 618, is located opposite the wedging protrusion 83.
[0066] L’au moins un muret d’éloignement 85 présente une épaisseur 85e parallèle à l’axe longitudinal dudit tube 618. Ladite épaisseur 85e est comprise de préférence entre 0,8 et 4 mm. Dans un mode de réalisation préférentiel, l’épaisseur 85e de l’au moins un muret d’éloignement 85 est de préférence uniforme. The at least one distancing wall 85 has a thickness 85th parallel to the longitudinal axis of said tube 618. Said thickness 85th is preferably between 0.8 and 4 mm. In a preferred embodiment, the thickness 85e of the at least one distancing wall 85 is preferably uniform.
[0067] L’au moins un muret d’éloignement 85 est formé de manière perpendiculaire à ladite surface externe du tube 618 et au tour de ladite surface externe. Une section de l’au moins un muret d’éloignement 85, étant transverse à l'axe longitudinal dudit tube 618, présente une forme d’anneau. De manière avantageuse, l’au moins un muret d’éloignement 85 est formé au niveau de l’au moins une plaque intermédiaire 615, comme illustré en figures 6, 8 et 9. Dans le présent mode de réalisation où un des supports d'enroulements 61 comprend une seule plaque intermédiaire 615, le support d'enroulements 61 comprend un seul muret d’éloignement 85. Dans un mode de réalisation alternatif où un des supports d'enroulements 61 comprend plusieurs plaques intermédiaires 615, le support d'enroulements 61 peut comprendre plusieurs murets d’éloignement 85 dont chacun se situe au niveau d’une des plaques intermédiaires 615. [0068] Avantageusement, l’au moins un muret d’éloignement 85 peut être formé dans la deuxième zone d’enroulement 92 (comme illustré en figures 5 à 9) ou dans la première zone d’enroulement 91 . Dans un mode de réalisation alternatif, l’au moins un muret d’éloignement 85 comprend deux murs d’éloignements respectivement formés dans la première zone d’enroulement 91 et dans la deuxième zone d’enroulement 92. Les deux murs d’éloignement sont de préférence similaires voire identiques à l’exemple du muret d’éloignement 85 ci-dessus en termes de forme, structure et/ou de dimension. De manière avantageuse, les épaisseurs des deux murs d’éloignement peuvent être respectivement comprises entre 0,8 et 3 mm, par exemple la moitié de l’épaisseur 85e comme décrit ci-dessus. The at least one distancing wall 85 is formed perpendicular to said outer surface of tube 618 and around said outer surface. A section of at least one distancing wall 85, being transverse to the longitudinal axis of said tube 618, has the shape of a ring. Advantageously, the at least one distancing wall 85 is formed at the level of the at least one intermediate plate 615, as illustrated in FIGS. 6, 8 and 9. In the present embodiment where one of the supports for windings 61 comprises a single intermediate plate 615, the winding support 61 comprises a single distancing wall 85. In an alternative embodiment where one of the winding supports 61 comprises several intermediate plates 615, the winding support 61 may include several distancing walls 85, each of which is located at the level of one of the intermediate plates 615. Advantageously, the at least one distancing wall 85 can be formed in the second winding zone 92 (as illustrated in FIGS. 5 to 9) or in the first winding zone 91 . In an alternative embodiment, the at least one distancing wall 85 comprises two distancing walls respectively formed in the first winding zone 91 and in the second winding zone 92. The two distancing walls are preferably similar or even identical to the example of the distancing wall 85 above in terms of shape, structure and/or size. Advantageously, the thicknesses of the two distancing walls can be respectively between 0.8 and 3 mm, for example half of the thickness 85e as described above.
[0069] De manière préférentielle, l’excroissance de calage 83 et/ou l’au moins un muret d’éloignement 85 sont issus de matière du support d'enroulements 61. Selon un mode de réalisation préférentiel, le support d'enroulements 61 comprenant l’excroissance de calage 83 et l’au moins un muret d’éloignement 85, est d’un seul tenant fabriqué par exemple par moulage. La fabrication du support d'enroulements 61 et le processus d’assemblage du composant magnétique 300 ainsi que celui de l’ensemble électrique 10 sont ainsi simplifiés. Preferably, the wedging protuberance 83 and/or the at least one distancing wall 85 are made from the material of the winding support 61. According to a preferred embodiment, the winding support 61 comprising the wedging protrusion 83 and the at least one distancing wall 85, is made in one piece, for example by molding. The manufacture of the winding support 61 and the assembly process of the magnetic component 300 as well as that of the electrical assembly 10 are thus simplified.
[0070] Par rapport à l’au moins une branche intérieure du composant magnétique 300, les branches latérales du composant magnétique 300 dissipent la chaleur plus facilement vers les parois 75 de la cavité 71 . [0070] Compared to at least one inner branch of the magnetic component 300, the side branches of the magnetic component 300 dissipate heat more easily towards the walls 75 of the cavity 71 .
[0071] Pour uniformiser la dissipation de chaleur ainsi qu’à améliorer le refroidissement, l’ensemble électrique 10 comprend au moins une remontée mécanique 77 constituée d’un matériau présentant une bonne conductivité thermique adaptée (e.g. l’aluminium) et placée entre deux branches adjacentes parmi les branches du composant magnétique 300. Plus précisément, une ou plusieurs remontées mécaniques 77 sont placées dans un espacement entre deux branches adjacentes qui comprennent au moins une branche intérieure, de sorte à uniformiser la dissipation de la chaleur issue des deux branches adjacentes. Plus précisément, les deux branches adjacentes comprennent, soit une branche intérieure et une branche latérale, soit deux branches intérieures (ce qui peut être le cas où le composant magnétique 300 comprend plus que trois branches). Ainsi, la température de l’au moins une branche intérieure ne risque plus d’être excessivement haute. To standardize the dissipation of heat as well as to improve the cooling, the electrical assembly 10 comprises at least one mechanical lift 77 made of a material having a good suitable thermal conductivity (eg aluminum) and placed between two adjacent branches among the branches of the magnetic component 300. More specifically, one or more ski lifts 77 are placed in a space between two adjacent branches which include at least one interior branch, so as to standardize the dissipation of the heat from the two adjacent branches . More specifically, the two adjacent branches comprise either an interior branch and a side branch, or two interior branches (which may be the case where the magnetic component 300 comprises more than three branches). Thus, the temperature of at least one interior branch no longer risks being excessively high.
[0072] Il existe une pluralité d’espacements respectivement se situant entre deux branches adjacentes du composant magnétique 300, comme un premier et un deuxième espacements E1 et E2. Le premier espacement se situe entre la branche intérieure 42 et la branche latérale 41 qui est adjacente à la branche intérieure 42. Le deuxième espacement E2 se situe entre la branche intérieure 42 et la branche latérale 43 qui est adjacente à la branche intérieure 42. Afin d'assurer l’uniformisation de la dissipation thermique par rapport aux toutes branches du composant magnétique 300, une ou plusieurs remontées mécaniques 77 sont placées dans chacun des espacements, comme illustré en figures 2 et 3. Ainsi, l’au moins une remontée mécanique 77 (i.e. les quatre remontées mécaniques 77 illustrées en figure 4) de part et d’autre de l’au moins une branche intérieure (e.g. la branche intérieure 42), permet d’uniformiser la dissipation de la chaleur issue des branches du composant magnétique 300, et d’améliorer en particulier la dissipation de la chaleur issue de l’au moins une branche intérieure 42. There are a plurality of spacings respectively located between two adjacent branches of the magnetic component 300, such as a first and a second spacing E1 and E2. The first spacing is between the inner leg 42 and the side leg 41 which is adjacent to the inner leg 42. The second spacing E2 is between the inner leg 42 and the side leg 43 which is adjacent to the inner leg 42. In order ensure the uniformity of heat dissipation with respect to all branches of the magnetic component 300, one or more ski lifts 77 are placed in each of the spacings, as illustrated in FIGS. 2 and 3. Thus, the at least one ski lift 77 (ie the four ski lifts 77 illustrated in FIG. 4) on either side other side of at least one inner branch (eg the inner branch 42), makes it possible to standardize the dissipation of the heat from the branches of the magnetic component 300, and to improve in particular the dissipation of the heat from the at least one inner branch 42.
[0073] Dans un mode de réalisation, l’au moins une remontée mécanique 77 est une remontée constituée d’un matériau présentant une conductivité thermique adaptée, par exemple l’aluminium. L’au moins une remontée mécanique 77 présente une épaisseur 77e de préférence supérieure ou égale à 3 mm. La taille de l’ensemble électrique 10 est déterminée en fonction de l’épaisseur 77e de l’au moins une remontée mécanique 77. Si l’épaisseur 77e de l’au moins une remontée mécanique 77 est faible, le composant magnétique 300 ainsi que l’ensemble électrique 10 présentent une taille réduite. In one embodiment, the at least one ski lift 77 is a ski lift made of a material having a suitable thermal conductivity, for example aluminum. The at least one ski lift 77 has a thickness 77e preferably greater than or equal to 3 mm. The size of the electrical assembly 10 is determined according to the thickness 77e of the at least one ski lift 77. If the thickness 77e of the at least one ski lift 77 is small, the magnetic component 300 as well as the electrical assembly 10 have a reduced size.
[0074] L’au moins une remontée mécanique 77 est de préférence perpendiculaire de ladite surface inférieure 73. De manière avantageuse, l’au moins une remontée mécanique 77 est issue du châssis 7. Selon un mode de réalisation préférentiel, le châssis 7 comprenant les parois 75 et les remontées mécaniques 77, est d’un seul tenant fabriqué par exemple par moulage. The at least one mechanical lift 77 is preferably perpendicular to said lower surface 73. Advantageously, the at least one mechanical lift 77 comes from the frame 7. According to a preferred embodiment, the frame 7 comprising the walls 75 and the ski lifts 77, is made in one piece, for example by molding.
[0075] L’invention permet, comme mentionné précédemment, de former de manière simple en termes de la fabrication et/ou de processus d’assemblage du composant magnétique et de l’ensemble électrique, les entrefers identiques sur les jambes du noyau ferromagnétique. Les supports d'enroulements selon l’invention permettent de garantir l’insertion des demi-jambes dans les tubes des supports d'enroulements, et de centrer les entrefers par rapport aux enroulements enroulés sur lesdits tubes. De plus, l’invention permet également de réduire des pertes magnétiques générées si les enroulements enroulés sur les supports d’enroulements ne sont pas suffisamment loin des entrefers. The invention makes it possible, as mentioned previously, to form in a simple manner in terms of the manufacture and/or of the assembly process of the magnetic component and of the electrical assembly, the identical air gaps on the legs of the ferromagnetic core. The winding supports according to the invention make it possible to guarantee the insertion of the half-legs in the tubes of the winding supports, and to center the air gaps with respect to the windings wound on said tubes. In addition, the invention also makes it possible to reduce the magnetic losses generated if the windings wound on the winding supports are not far enough from the air gaps.
[0076] L'invention n'est pas limitée aux modes de réalisation précédemment décrits mais s'étend à tout mode de réalisation conforme à son esprit. The invention is not limited to the embodiments described above but extends to any embodiment in accordance with its spirit.

Claims

REVENDICATIONS
1 . Support d'enroulements (61 ) comprenant un tube (618) destiné à recevoir une des jambes (31 , 32, 33) d’un noyau ferromagnétique (30) d’un composant magnétique (300), de manière que des demi-jambes de ladite jambe sont en vis-à-vis dans le tube (618), le composant magnétique (300) comprenant en outre des enroulements (510, 520) qui correspondent à ladite jambe et qui sont enroulés sur le tube (618) ; le support d'enroulements (61 ) étant caractérisé en ce qu’il comprend : 1 . Winding support (61) comprising a tube (618) intended to receive one of the legs (31, 32, 33) of a ferromagnetic core (30) of a magnetic component (300), so that half-legs of said leg are face to face in the tube (618), the magnetic component (300) further comprising windings (510, 520) which correspond to said leg and which are wound on the tube (618); the winding support (61) being characterized in that it comprises:
- une excroissance de calage (83) formée sur une surface interne du tube (618), de sorte à définir un entrefer entre lesdites demi-jambes en vis-à-vis ; et- a wedging protrusion (83) formed on an internal surface of the tube (618), so as to define an air gap between said half-legs facing each other; and
- au moins un muret d’éloignement (85), formé en vis-à-vis de l’excroissance de calage (83) et sur une surface externe dudit tube (618), et configuré pour éloigner au moins un des enroulements (510, 520) dudit entrefer. - at least one distance wall (85), formed vis-à-vis the wedging protrusion (83) and on an outer surface of said tube (618), and configured to distance at least one of the windings (510 , 520) of said air gap.
2. Support d'enroulements (61) selon la revendication précédente, dans lequel l’excroissance de calage (83), présentant une épaisseur (83e) parallèle à un axe longitudinal dudit tube (618), est formée de manière orthogonale à ladite surface interne du tube (618) ; la dimension dudit entrefer étant définie en fonction de l’épaisseur (83e) de l’excroissance de calage (83). 2. Winding support (61) according to the preceding claim, wherein the wedging protrusion (83), having a thickness (83e) parallel to a longitudinal axis of said tube (618), is formed orthogonally to said surface inner tube (618); the dimension of said air gap being defined as a function of the thickness (83e) of the wedging protrusion (83).
3. Support d'enroulements (61) selon la revendication 2, dans lequel une section de l’excroissance de calage (83), étant transverse à l'axe longitudinal dudit tube (618) de l’excroissance de calage (83), présente une forme d’anneau ; ladite hauteur (83h) étant perpendiculaire à ladite surface interne du tube (618). 3. Winding support (61) according to claim 2, wherein a section of the wedging protrusion (83), being transverse to the longitudinal axis of said tube (618) of the wedging protrusion (83), has a ring shape; said height (83h) being perpendicular to said internal surface of the tube (618).
4. Support d'enroulements (61) selon l’une quelconque des revendications 1 à 3, comprenant une cavité de réception (9) défini par l’excroissance de calage (83) pour qu’une colle utilisée lors de la fabrication du composant magnétique (300) puisse se répandre dans ladite cavité de réception (9) ; ladite cavité de réception (9) étant un espace entre des portions (83p, 83q) de l’excroissance de calage (83) en vis-à-vis. 4. Winding support (61) according to any one of claims 1 to 3, comprising a receiving cavity (9) defined by the wedging protrusion (83) so that an adhesive used during the manufacture of the component magnetic (300) can spread in said receiving cavity (9); said receiving cavity (9) being a space between portions (83p, 83q) of the wedging protuberance (83) facing each other.
5. Support d'enroulements (61) selon l’une quelconque des revendications 2 à 4, dans lequel l’au moins un muret d’éloignement (85), présentant une épaisseur (85e) parallèle à l’axe longitudinal dudit tube (618), est formé de manière perpendiculaire à la surface externe du tube (618). 5. Support windings (61) according to any one of claims 2 to 4, wherein the at least one distancing wall (85), having a thickness (85th) parallel to the longitudinal axis of said tube ( 618), is formed perpendicular to the outer surface of the tube (618).
6. Support d'enroulements (61) selon la revendication 5, dans lequel une section de l’au moins un muret d’éloignement (85), étant transverse à l'axe longitudinal dudit tube (618), présente une forme d’anneau. 6. Support windings (61) according to claim 5, wherein a section of the at least one distancing wall (85), being transverse to the longitudinal axis of said tube (618), has a shape of ring.
7. Support d'enroulements (61) selon l’une quelconque des revendications 1 à 6, dans lequel l’épaisseur (83e) de l’excroissance de calage (83) et/ou l’épaisseur (85) de l’au moins un muret d’éloignement (85) sont uniformes. 7. Winding support (61) according to any one of claims 1 to 6, wherein the thickness (83e) of the wedging protuberance (83) and/or the thickness (85) of the au least one distancing wall (85) are uniform.
8. Support d'enroulements (61) selon l’une quelconque des revendications 1 à 7, dans lequel l’excroissance de calage (83) et/ou l’au moins un muret d’éloignement (85) sont formés au niveau d’une plaque intermédiaire (615) ; ladite plaque intermédiaire (615) séparant les enroulements (510, 520) enroulés sur le tube (618) du support d’enroulements (61 ). 8. Winding support (61) according to any one of claims 1 to 7, wherein the wedging protuberance (83) and/or the at least one distancing wall (85) are formed at the level of an intermediate plate (615); said intermediate plate (615) separating the windings (510, 520) wound on the tube (618) from the winding support (61).
9. Support d'enroulements (61) selon l’une quelconque des revendications 1 à 8, dans lequel l’excroissance de calage (83) et/ou l’au moins un muret d’éloignement (85) sont issus de matière du support d'enroulements (61). 9. Winding support (61) according to any one of claims 1 to 8, in which the wedging projection (83) and/or the at least one distancing wall (85) are made from material of the winding support (61).
10. Support d'enroulements (61) selon l’une quelconque des revendications 1 à 9, étant d’un seul tenant fabriqué par moulage. 10. Support windings (61) according to any one of claims 1 to 9, being integrally manufactured by molding.
11 . Support d'enroulements (61 ) selon l’une quelconque des revendications 1 à 10, étant en matériau plastique. 11 . Winding support (61) according to any one of claims 1 to 10, being made of plastic material.
12. Support d'enroulements (61 ) selon l’une quelconque des revendications 1 à 11 , configuré pour être logé dans une cavité (71 ) d’un châssis (7) comprenant des remontées mécaniques (77), de façon à ce que lesdites remontées mécaniques (77) se trouvent placées dans un espacement entre deux jambes adjacentes du noyau ferromagnétique (30). 12. Winding support (61) according to any one of claims 1 to 11, configured to be housed in a cavity (71) of a frame (7) comprising mechanical lifts (77), so that said ski lifts (77) are placed in a space between two adjacent legs of the ferromagnetic core (30).
13. Ensemble électrique (10) comprenant un composant magnétique (300) et des supports d'enroulements (61), lesdits supports d'enroulements (61) comprenant chacun un tube 13. Electrical assembly (10) comprising a magnetic component (300) and winding supports (61), said winding supports (61) each comprising a tube
(618) configuré pour recevoir des demi-jambes d’une de plusieurs jambes (31 , 32, 33) d’un noyau ferromagnétique (30) dudit composant magnétique (300) ; pour chacune desdites jambes (31 , 32, 33), le composant magnétique (300) comprenant en outre des enroulements (510, 520) qui correspondent à ladite jambe et qui sont enroulés sur le tube (618) dans lequel les demi- jambes de la jambe sont en vis-à-vis ; l’ensemble électrique (10) étant caractérisé en ce que chacun des supports d'enroulements (61 ) comprend : (618) configured to receive half legs of one of several legs (31, 32, 33) of a ferromagnetic core (30) of said magnetic component (300); for each of said legs (31, 32, 33), the magnetic component (300) further comprising windings (510, 520) which correspond to said leg and which are wound on the tube (618) in which the half-legs of the leg are opposite each other; the electrical assembly (10) being characterized in that each of the winding supports (61) comprises:
- une excroissance de calage (83) formée sur une surface interne du tube (618), de sorte à définir un entrefer entre deux demi-jambes de la jambe en vis-à-vis ; et au moins un muret d’éloignement (85), formé en vis-à-vis de l’excroissance de calage (83) et sur une surface externe dudit tube (618), et configuré pour éloigner au moins un des enroulements (510, 520) dudit entrefer. 16 - a wedging projection (83) formed on an internal surface of the tube (618), so as to define an air gap between two half-legs of the leg facing each other; and at least one distancing wall (85), formed opposite the wedging protrusion (83) and on an outer surface of said tube (618), and configured to distance at least one of the windings (510 , 520) of said air gap. 16
14. Ensemble électrique (10) selon la revendication précédente, dans lequel le composant magnétique (300) présente des entrefers respectivement définis par un des supports d'enroulements (61), les entrefers étant identiques sur les jambes (31 , 32, 33) du noyau ferromagnétique (30). 15. Ensemble électrique (10) selon la revendication 13 ou la revendication 14, comprenant : 14. Electrical assembly (10) according to the preceding claim, wherein the magnetic component (300) has air gaps respectively defined by one of the winding supports (61), the air gaps being identical on the legs (31, 32, 33) of the ferromagnetic core (30). 15. Electrical assembly (10) according to claim 13 or claim 14, comprising:
- un châssis (7) comprenant une cavité (71) dans laquelle les supports d'enroulements (61) ainsi que le composant magnétique (300) sont logés ; - a frame (7) comprising a cavity (71) in which the winding supports (61) as well as the magnetic component (300) are housed;
- des remontées mécaniques (77) placées dans un espacement entre deux jambes adjacentes du noyau ferromagnétique (30), de sorte à uniformiser la dissipation de la chaleur générée lors du fonctionnement du composant magnétique (300). - Mechanical lifts (77) placed in a space between two adjacent legs of the ferromagnetic core (30), so as to standardize the dissipation of the heat generated during the operation of the magnetic component (300).
16. Equipement électrique comprenant un ensemble électrique (10) selon l’une des revendications 13 à 15. 16. Electrical equipment comprising an electrical assembly (10) according to one of claims 13 to 15.
EP21766662.7A 2020-08-31 2021-08-27 Winding support for a magnetic component of an electrical assembly Pending EP4205151A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2008809A FR3113764B1 (en) 2020-08-31 2020-08-31 A winding support for a magnetic component of an electrical assembly
PCT/EP2021/073752 WO2022043502A1 (en) 2020-08-31 2021-08-27 Winding support for a magnetic component of an electrical assembly

Publications (1)

Publication Number Publication Date
EP4205151A1 true EP4205151A1 (en) 2023-07-05

Family

ID=73793345

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21766662.7A Pending EP4205151A1 (en) 2020-08-31 2021-08-27 Winding support for a magnetic component of an electrical assembly

Country Status (5)

Country Link
US (1) US20230317338A1 (en)
EP (1) EP4205151A1 (en)
CN (1) CN116368586A (en)
FR (1) FR3113764B1 (en)
WO (1) WO2022043502A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3143182A1 (en) * 2022-12-08 2024-06-14 Valeo Eautomotive France Sas Electronic component, in particular three-phase transformer for isolated voltage converter
FR3143180A1 (en) * 2022-12-08 2024-06-14 Valeo eAutomotive France SAS - Service Propriété Intellectuelle Electronic component, in particular three-phase transformer for isolated voltage converter
FR3143185B1 (en) * 2022-12-08 2025-01-10 Valeo Eautomotive France Sas Electronic component, including three-phase transformer for isolated voltage converter
FR3143946B1 (en) * 2022-12-16 2025-01-03 Valeo Eautomotive France Sas Electronic component, including three-phase transformer for isolated voltage converter

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54116634A (en) * 1978-03-03 1979-09-11 Matsushita Electric Ind Co Ltd Fly-back transformer
TWI370466B (en) * 2008-05-09 2012-08-11 Delta Electronics Inc Trensformer structure
TWM381155U (en) * 2009-12-08 2010-05-21 Tsung-Yen Tsai Vertical double power transformer for computer power supply
EP3018665B1 (en) * 2014-11-10 2017-01-11 SMA Solar Technology AG Low inter-winding capacitance coil form

Also Published As

Publication number Publication date
CN116368586A (en) 2023-06-30
WO2022043502A1 (en) 2022-03-03
US20230317338A1 (en) 2023-10-05
FR3113764A1 (en) 2022-03-04
FR3113764B1 (en) 2024-02-16

Similar Documents

Publication Publication Date Title
WO2022043502A1 (en) Winding support for a magnetic component of an electrical assembly
CA2684373C (en) Module for an electric energy storage assembly
WO2022022896A1 (en) Magnetic component with controlled leakage flux
FR2983367A1 (en) COOLING OF ELECTRIC MOTOR WITH COOLING TUBE AND CONDUCTION PLATES OR COUPLES
FR2995127A1 (en) MAGNETIC CORE FOR A WINDING MAGNETIC COMPONENT HAVING IMPROVED COOLING MEANS
JP2008098209A (en) Insulation structure of coil
JP2010219251A (en) Reactor
FR3113386A1 (en) Electrical assembly comprising a magnetic component
FR2996047A1 (en) INDUCTIVE DEVICE LIMITING ACOUSTIC OSCILLATIONS
EP3391394B1 (en) Electronic device including at least one inductor comprising passive heat management means
US20230187901A1 (en) Epitaxial structure and semiconductor chip applying same
EP3902382B1 (en) Electrical assembly comprising a power module and a capacitive module, as well as an indexing member
FR3104890A1 (en) ELECTRICAL INSULATION MODULE FOR HIGH VOLTAGE ELECTRICAL EQUIPMENT
WO2021099724A1 (en) Electromagnetic induction device
EP0165845B1 (en) Transformer with a strong primary-secondary coupling
FR3094833A1 (en) CAPACITIVE BLOCK INCLUDING A SPACER
WO2024047739A1 (en) Bobbin for coil device, coil device, and assembly method for coil device
FR3078816A1 (en) POWER ELECTRONIC DEVICE COMPRISING A PLANAR TRANSFORMER AND A COOLING STRUCTURE
CN114784600B (en) Solid laser with space ladder uniform pumping
FR3145235A1 (en) Semiconductor assembly and heat sink obtained by associated foundry
EP4266332A1 (en) Magnetic coupling device and method for manufacturing such a magnetic coupling device
FR3104801A1 (en) ELECTROTECHNICAL DEVICE FOR AN AIRCRAFT
FR3123497A1 (en) Power electronics magnetic component comprising a magnetic core with high heat absorption capacity on power transients
WO2021116599A1 (en) Electrotechnical device for an aircraft, comprising low-frequency coil components
FR3143456A1 (en) Contactless energy transfer device and coupler comprising the same

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: UNKNOWN

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20230224

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

RAP3 Party data changed (applicant data changed or rights of an application transferred)

Owner name: VALEO SIEMENS EAUTOMOTIVE NORWAY AS

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: VALEO SIEMENS EAUTOMOTIVE FRANCE SAS

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: VALEO EAUTOMOTIVE FRANCE SAS

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: VALEO ELECTRIFICATION