EP3074989A1 - Composant inductif ainsi que dispositif et procédé pour enrouler un fil pour un composant inductif - Google Patents

Composant inductif ainsi que dispositif et procédé pour enrouler un fil pour un composant inductif

Info

Publication number
EP3074989A1
EP3074989A1 EP14805542.9A EP14805542A EP3074989A1 EP 3074989 A1 EP3074989 A1 EP 3074989A1 EP 14805542 A EP14805542 A EP 14805542A EP 3074989 A1 EP3074989 A1 EP 3074989A1
Authority
EP
European Patent Office
Prior art keywords
wire
bending
forming
inductive component
plate
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.)
Granted
Application number
EP14805542.9A
Other languages
German (de)
English (en)
Other versions
EP3074989B1 (fr
Inventor
Karsten Frey
Jürgen Frey
Wolfgang PORISCH
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.)
TDK Electronics AG
Original Assignee
Epcos AG
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 Epcos AG filed Critical Epcos AG
Publication of EP3074989A1 publication Critical patent/EP3074989A1/fr
Application granted granted Critical
Publication of EP3074989B1 publication Critical patent/EP3074989B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • H01F41/06—Coil winding
    • H01F41/061—Winding flat conductive wires or sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D7/00—Bending rods, profiles, or tubes
    • B21D7/02—Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment
    • B21D7/024—Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment by a swinging forming member
    • 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
    • H01F27/2823—Wires
    • 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
    • H01F27/2847—Sheets; Strips
    • 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
    • H01F27/2895—Windings disposed upon ring cores
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • H01F41/06—Coil winding
    • H01F41/077—Deforming the cross section or shape of the winding material while winding
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • H01F41/06—Coil winding
    • H01F41/08—Winding conductors onto closed formers or cores, e.g. threading conductors through toroidal cores
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • H01F41/06—Coil winding
    • H01F41/082—Devices for guiding or positioning the winding material on the former
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D7/00—Bending rods, profiles, or tubes
    • B21D7/08—Bending rods, profiles, or tubes by passing between rollers or through a curved die
    • B21D7/085—Bending rods, profiles, or tubes by passing between rollers or through a curved die by passing through a curved die

Definitions

  • Inductive component as well as apparatus and method for winding a wire for an inductive component
  • the invention relates to a device for winding a wire, for example, as an air coil or as part of an inductive component, in particular as a winding of a
  • inductive components such as an air coil or a transformer
  • the wire For example, to make an air coil, the wire must be helically wound.
  • the transformer has a closed core, provides an automated, direct winding of the ge ⁇ closed core presents a special challenge.
  • Winding spiral diameter, number of turns and core cross-section it is conditionally possible to "turn" preformed air coils on a ge ⁇ closed core of a transformer.
  • the helical air coil which resembles a tension spring, must be spread open so far that the core cross section can be overcome. During this generally very complex and time-consuming process, however, high mechanical forces act on the core to be wound. By spreading the “tension spring” to “compression spring” is the possible
  • transformers which have a closed core and in which instead of round wires flat wires with rectangular cross section (rectangular wires) used for the winding ⁇ the.
  • This type of transformer makes it possible to carry high-current currents at high inductance of the component due to the high number of turns that can be achieved.
  • the application of a rectangular or flat wire on a closed core can not be automated and is therefore usually generally very time ⁇ agile.
  • the device comprises a feed device for displacing the wire, a forming device and a pitching device for bending the wire.
  • the forming device serves to bend the wire in a plane and the gradient means for bending the wire with a slope out of the plane.
  • the pitch deflector device is arranged behind the forming device.
  • the slope-giving device can also be integrated in the forming device, so that the wire also experiences a gradient during circular bending in the forming device.
  • the forming device and the pitch transmitter device are arranged in such a way that the wire is inserted into the forming device and the pitch transmitter device during the displacement by the feed device .
  • the forming device and the pitching device are designed such that the wire is bent in a helical manner during the displacement in the forming device and the pitching device.
  • a method for winding a wire is specified.
  • the method provides for providing a device, in particular the above-mentioned device, for winding the wire.
  • the wire is displaced in the device in such a way that the wire is fed to a forming device and to a pitching device.
  • the wire is helically bent.
  • the wire is bent in the plane as it passes through the forming means and is bent out of the plane as it passes through the pitching means.
  • any cross-sections preferably thick and therefore very stiff cross-sections, ei ⁇ nes wire, in particular a rectangular or flat wire very quickly and directly to closed core cross sections are automatically wound up.
  • the Kompri ⁇ -optimized "spring" of the coil is maintained.
  • the core may be wound almost completely without mechanical ⁇ specific voltages are generated in the winding direction, and thus can operate with virtually no mechanical forces on the core.
  • the device for winding the wire may include a guiding device for guiding the wire in the plane, wherein the guiding device has a straight course in the plane.
  • the wire is inserted into the guide device and inserted by means of the feed device in the forming device, which is arranged in the feed direction of the wire behind the guide means.
  • the feed device can be designed, for example, as an eccentric lifting press.
  • the forming device may be formed as a recess in a plate.
  • the wire can then be bent by the forming device in the plane of the plate.
  • the forming device has a bottom surface for supporting the wire and a curved side wall.
  • the side wall may be bent in a semicircle so that the wire is bent in a circle.
  • the lead encoder device the wire is bent out of the plane of the plate, so that from the circular bend a helical winding of the wire is formed.
  • the shape of the wire can also be called "helical” or "spirally" in the sense of a cylindrical spiral.
  • the device is particularly suitable for bending a flat wire, wherein the flat wire with its larger Be ⁇ ten Chemistry on the bottom surface of the forming device is on ⁇ and rests with its smaller side surface on the side wall of the forming device.
  • the bottom surface of the opposite side of the recess which may be open, be covered by a sliding cover. This special shape prevents the natural tendency of the wire to tip over during bending.
  • the pitch encoder the wire undergoes a slope so that after one turn it exceeds its own height and is bent over an underlying portion of the wire.
  • the device may have a receiving device for positioning a core, in particular a closed core, of an inductive component, for example a transformer.
  • the forming device and the pitching device are arranged around the receiving device such that the wire can be helically wound around a leg of the closed core when moving through the Umformungsein- direction and the pitch device without the sensitive paint of the wire, such as a copper enameled wire, or the insulation coating to damage the core.
  • An otherwise usual mandrel is not required.
  • the device is flat or rectangular wires can be of a width of for example 5 mm and a thickness of 1 mm schrau ⁇ benförmig turn respectively to 2 mm as an air coil helically about a Bend legs of a closed frame core of a transformer.
  • a Endab ⁇ section of the wire can be pre-bent by a Vorbiege founded the device.
  • the wire into the feed device is clamped such that the vorzubiegende end portion of the wire from the device to the side on which the guide means or the Umformungs ⁇ means is arranged protruding.
  • the pre-bending ⁇ device the end portion of the wire is bent so that the wire can then be inserted into the upwardly open Vertie ⁇ tion of the forming device.
  • the further bending of the wire takes place, as described above, au ⁇ tomatIFF by moving the wire through the forming device and the pitch transmitter device.
  • an inductive component is specified.
  • the component is provides ⁇ ⁇ Herge before preferably by advancing described method.
  • the wire is in particular circular with a pitch, ie, helical, wound.
  • the winding of the wire is formed compressed. In a compressed winding adjacent turns are close to each other.
  • the winding is formed gap-free or almost gap-free, so that adjacent turns lie directly against each other.
  • the pitch of the helical winding is in the range of the wire thickness. In this way, a particularly high degree of filling of the winding can be achieved.
  • the inductive component may have a core, in particular a ferrite core.
  • the wire can be wrapped directly around the core.
  • the wire in this case is not wound around a bobbin made of plastic.
  • the core has a closed shape.
  • the inductive component can also be designed as an air coil.
  • the wire may be formed, for example, as a rectangular or as a flat wire. Alternatively, it can also be a round wire.
  • the core in cross-section on an outer circumferential line which is not circular.
  • the core may have edges.
  • Example ⁇ example comprises the core cross-section corners.
  • the core may have an outer peripheral line in the form of a polygon.
  • FIG. 1 shows an embodiment of a device for winding a wire
  • Figure 2 shows a detail of the device for winding a
  • FIG. 3 shows a further detail of the device for winding a wire
  • FIG. 4 shows an embodiment of a pitching device
  • FIG. 5 is a plan view of a first side of an embodiment of a pre-bending device for bending an end portion of a wire
  • FIG. 6 shows a plan view of a second side of an exporting ⁇ approximate shape of a Vorbiege adopted for bending an end portion of a wire
  • Figure 7 is a plan view of a second side of a Ausry ⁇ tion form a Vorbiege adopted for bending an end portion of a wire.
  • the device 1 shows an embodiment of a device 1 for winding a wire 2, which can be wound by means of the device 1 helically as an air coil or around a leg of a closed frame core 3 of an inductive component 4, for example a transformer.
  • an inductive component 4 for example a transformer.
  • two parallel wires 2 can be simultaneously wound around two legs of a closed Rah ⁇ menkerns 3 in particular.
  • the device 1 comprises a feed device 10 for
  • the feed device 10 has a carriage 11 which is arranged movably on a rail 100.
  • the device 1 comprises two carriages 11 which are arranged displaceably on the rail 100 in the horizontal direction.
  • the guide 13 may be formed as a recess in the plate 12.
  • two guides 13 can be arranged in parallel in the plate 12, as in the case of the embodiment of the device 1 for winding the wire shown in FIG.
  • a cover plate 15 may be at least partially disposed on the plate 12.
  • the cover plate 15 can be pressed by means of a press 14 on the plate 12, so that the open side of the guide 13 is covered ⁇ by the cover plate 15 and the wire 2 is clamped in the guide 13.
  • a punch 16 is provided on the press 14, which presses the cover plate 15 on the plate 12 with the guide 13.
  • the plate 12, the cover plate 15 and the punch 17 can be moved back and forth with the movement of the carriage 11 in the direction shown by the arrows on the plate 12 horizontal displacement direction of the wire.
  • a drive unit 110 For movement of the feed device 10, a drive unit 110 is provided. During the forward movement of the wire 2 in the direction of the frame core 3, the wire 2 in the guide 13 is pressed by means of the cover plate 15 and thus displaced along the guide device 50. Subsequently, the press raises the cover plate 15, so that the wire is no longer clamped in the guide 13 of the plate 12. The carriage 11 then moves the plate 12 back to the starting position. Subsequently, the feed operation of the wire is repeated.
  • Figures 2 and 3 show a front portion of the device 1 with a guide device 50 for guiding the wires 2 in an enlarged view.
  • the guide device 50 is arranged as a depression in a plate 80.
  • the guide device 50 has a straight course in a plane E of the plate 80.
  • the device 1 comprises, in addition to the feed device 10 and the guide device 50, a forming device 20 for bending the wire 2 in the plane E and a pitch device 30 for bending the wire 2 with a pitch out of the E level.
  • the shaping device 20 and the gradient generation means 30 are designed such that the wire 2 at a displacement by the feed device 10 is first placed in the guide 50 in the longitudinal direction and then in the forming device 20 and the sti ⁇ supply generation means is introduced 30th
  • the shaping device 20 and the gradient generation means 30 are designed such that the wire 2 in the shifting in the order ⁇ shaping means 20 and the gradient generation means 30 is helically curved.
  • the forming device 20 and the guide device 50 may be formed as part of their common plate 80.
  • the forming device 20 may have a recess 23 in the plate 80, wherein the recess in the plane E of the plate has a curved course.
  • the depression may be, for example, circular-segment-shaped, in particular semicircular, bent.
  • the forming device 20 may have a bottom surface 21 for supporting the wire 2 and at least one side wall 22.
  • the at least one side wall 22 has the curved course.
  • the forming device 20 is thus formed such that the wire 2 is bent in a circular manner during the displacement in the forming device 20 along the side wall 22.
  • the guide device 50 may have in the plate 80 a recess 53 which has a straight course in the plane E of the plate and opens into the recess 23 of the forming device 20.
  • the guide device 50 has a bottom surface 51 and a side wall 52, which are arranged at right angles to each other and thus the recess 53 inside ⁇ half of the plate 80 form.
  • the forming device 20 and the guide device 50 are designed in particular for guiding a rectangular or flat wire.
  • ⁇ example flat wire is to be understood as a wire having a rectangular cross-section having one larger and one smaller side face, the side faces are arranged at right angles to each other.
  • the wire 2 is designed in each case as a flat or rectangular wire with a larger side surface S2a and a smaller side surface S2b.
  • the outer portion of the wire which lies closer than a pause ⁇ rer portion of the wire to the side wall 22 of the Umformungs ⁇ device 20 is stretched while the inner portion of the wire is compressed when bent.
  • the forming device 20 may be open on the side opposite the bottom surface 21.
  • the device 1 may comprise a displaceable covering device 40.
  • the cover 40 may be slidably mounted on the plate 80.
  • the cover 40 can be moved to the plate 80 such that the guide means 50 is completely and the shaping device 20 at least in part, by the ⁇ cover 40 covered.
  • a covering 40 is shown for reasons that 50 fully and rear shaping device 20 covers the wells of the rear guide device part.
  • the cover 40 may be formed in the form of a slidably mounted on the plate 80 plate.
  • the covering device 40 is along the two recesses 41 transversely to the longitudinal direction of the wire 2 and thus transversely to the
  • the displaceable Abdeckein ⁇ direction 40 is displaced such that the guide means 50 is complete and the forming device 20 is partially covered by the cover 40.
  • the front region AB of the forming device 20 delimited by a dashed line in FIG. 3 is covered by the covering element with the section of the wire lying therein.
  • the plate of the covering device 40 has a semicircular recess 42 over the region AB of the forming device 20. At the lower end of the semicircular recess, the covering device has a thin plate 43 made of a hardened material.
  • This plate 43 may be, for example, only a few tenths of a millimeter thick.
  • the thin plate 43 disposed at the lower end of the recess 42 covers the wire 2 guided in the recess of the former.
  • the thin plate 43 prevents the wire from jumping out of the forming device 20.
  • an upper layer of the wire may pass over the bottom layer of the wire as it passes through the lead device in the reforming device 20, are arranged.
  • the upper layer of the wire lays over the plate 43, while the lower layer of the wire is guided under the plate 43 in the Umfor ⁇ tion device.
  • the lower layer and is disposed about ⁇ upper position of the wire winding are separated from each other in the winding operation by the thin plate 43rd
  • the guide device is shown in FIG. tion 50 and thus also the plate 80 arranged in the feed direction of the wire 2 behind the feed device 10.
  • the forming device 20 is arranged in the feed direction of the wire behind the guide device 50, so that the wire 2 is inserted in a displacement of the guide device 50 in the forming device 20.
  • the pitch transmitter device 30 can be arranged behind the forming device 20, so that the wire 2 is guided during the displacement after the forming in the forming device 20 to the pitch transmitter device 30.
  • the Ste Trentsge ⁇ prepared device 30 can also be integrated into the conversion device.
  • the bottom surface 21 of the forming device increases in the horizontal direction, so that the wire also undergoes a gradient during circular bending in the shaping device.
  • the pitch transmitter device 30 is arranged behind the forming device 20.
  • the inclining device 30 may, for example, have an inclined plate for generating the pitch of the wire.
  • the slant of the plate may be a ⁇ adjustable function of the slope of the wire.
  • Figure 4 is guided in the guide device 50 and the shaping device 20 wire 2 is wound around the foreshortened leg 3 of the inductive Bauele ⁇ member 4 and the pitch encoder 30.
  • the slope detector 30 is designed as a ball pin educated.
  • the pitch sensor has, for example, a cylindrical body with a spherical bulge 31 at its upper end.
  • the pitch sensor is arranged on the plate 80 or can be sunk in the plate 80.
  • the pitch encoder can be raised from the plane E of the plate 80.
  • the wire runs on the spherical curvature 31 and receives ⁇ due to the spherical shape a slope which is necessary to produce the actual helical winding of the wire and thus more than one turn of the wire.
  • the pitch sensor can be raised, for example, according to the desired pitch, as soon as the wire has slipped onto the spherical bulge.
  • the wire After pushing the wire over the inclined plate or the spherical Wöl ⁇ tion 31 of the pitcher device, the wire is bent out of the plane E and can be placed over the underlying portion of the wire, which is introduced at the same time in the forming device. This creates the helical winding of the wire.
  • the device 1 In order to wind the wire around a leg of the closed frame core 3, the device 1 has a receiving device 60 for positioning the core 3 of the inductive component 4.
  • the forming device 20 and the pitch ⁇ generating means 30 are arranged around the receiving device 60, that the wire 2 is helically wound around the leg of the core 3 of the inductive component when the core 3 is positioned in the receiving device 60 and the wire 2 through the Forming device 20 and the pitch encoder 30 is guided.
  • the cover plate 15 is first lifted from the plate 12, so that the wire 2 can be inserted into the guide 13 and pushed through the guide device 50 to the beginning of the forming device 20. Subsequently, the cover plate 15 is pressed by means of the press 14 and the punch 16 on the plate 12, so that the wire 2 is clamped within the guide 13.
  • the carriages 11 and thus the plate 12 are displaced in the direction of the arrow, so that the front end of the wire is pushed by the guide device 50 into the forming device 20.
  • the front portion which is guided by the shaping device 20 of the Drah ⁇ tes is semi-circularly curved in the plane of the plate E 80th
  • the cover plate 15 is lifted by the punch 16 and the press 14 and the carriages 11 are pushed back with the plate 12 fastened thereon in the opposite direction to the arrow shown in FIG. Due to the bending of the front end of the wire, the wire is fixed and is not pushed back with the movement of the plate 12 and the carriage 11.
  • the cover plate 15 is again pressed onto the plate 12, so that the wire is clamped again in the guide 13. Subsequently, a further forward movement ⁇ move the plate 12 by the carriage 11, whereby the wire 2 is further inserted into the forming device 20 and bent there semicircular.
  • the front end of the Wire now reaches the pitch transmitter device 30 and is bent out of the plane E of the plate 80 during further passage through the pitch transmitter device 30.
  • the wire By further advancing the wire, the wire can be finally helically bent by means of the device, as shown in FIGS. 1 to 3.
  • the described method for bending the wire by means of the device 1 can be carried out, for example, for bending a wire with a width of 5 mm and a thickness of 1.5 mm to 1.7 mm.
  • the front end section A of the wire 2 can be pre-bent prior to insertion into the guide device 50 or the forming device 20.
  • the device 1 has the pre-bending device 70 shown in FIGS. 1, 2, 5, 6 and 7 for bending the end section A of the wire 2.
  • the Vorbiege shark 70 may be part of a plate 90 which is movably disposed on a holder 120 of the device 1 in the vertical direction.
  • the Vorbiege listening 70 has a bending mandrel 71 around which the end portion A of the wire 2 is bendable on.
  • the bending mandrel 71 may be formed as a cylindrical pin which protrudes from the underside of the plate 90.
  • Vorbiege acquired 70 has a bending member 72 which is fixed as a mitphaseder pin (7) ⁇ se a cylindrical roller on a lever 73 can be.
  • the lever 73 may be rotatably mounted on a hinge 76.
  • the Vorbiege acquired 70 further includes in the plate 90 has a recess 74 in which the bending element 72 is arranged to be movable at a distance about the bending mandrel 71.
  • the flexure 72 is be ⁇ wegbar means of the lever 73 along the path of a circle segment within the recess 74th
  • the recess 74 is also arranged in the form of a circular segment in the plate 90 for this purpose.
  • the material recess in the plate 90 has two circular segment-shaped part of recesses which interengage pass.
  • the pre-bending device 70 shown in FIGS. 5, 6 and 7 only one wire 2 is shown with an end section A which is bent by means of the pre-bending device 70.
  • the wire For pre-bending of the end portion A of the wire 2, the wire is first so clamped ⁇ in the feed device 10, the front end portion A of the wire on the side of the feed device, on which the guiding device 50 is located, projects out of the feed device.
  • the plate 80 with the guide device 50, the conversion device 20 and the fixed to the plate Gradistsge ⁇ ber driving 30 is slidably mounted on the holder 120.
  • the plate 80 For pre-bending the end portion of the wire 2, the plate 80 is displaced along the holder 120 to a position P3.
  • the pre-bending device 70 is connected to the plate 80 via a coupling element 130.
  • the coupling ⁇ element 130 is slidably mounted on the holder 120 in the vertical direction.
  • FIG. 7 shows the pre-bent end portion A of the wire 2, which is bent in a GE ⁇ curved portion of the guide 75.
  • a cover 78 is provided over the curved portion of the guide 75.
  • the cover 78 is arranged on the underside of the plate 80 and may have a circular segment-shaped cross section.
  • a further second wire which is guided parallel to the first wire in the device 1, can be bent by means of the pre-bending device 70.
  • the Vorbiege adopted a further lever 73, which moves a further bending element in a further recess 74.
  • the plate 90 is moved with the Vorbiege worn 70 from the position P2 back to the position PI.
  • the plate 80 is moved from the position P3, which is below the position P2, back to the position P2, whereby the front end portion A of the now pre-bent wire 2 in the guide means 50 and the forming device 20 is inserted.
  • the further bending or winding the wire around the legs of the ge ⁇ closed frame core 3 can be further automated manner described above with ⁇ means of the device 1 as shown.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Wire Processing (AREA)
  • Coil Winding Methods And Apparatuses (AREA)
  • Coils Of Transformers For General Uses (AREA)
  • Manufacture Of Motors, Generators (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)

Abstract

L'invention concerne un dispositif (1) pour enrouler un fil (2) comprenant un dispositif d'avance (10) pour déplacer le fil (2) et un dispositif de mise en forme (20) et un dispositif donnant une pente (30) pour plier le fil (2). Le dispositif de mise en forme (20) et le dispositif donnant une pente (30) sont conçus de manière telle que le fil (2) est plié de manière hélicoïdale lors du déplacement dans le dispositif de mise en forme (20) et le dispositif donnant une pente (30). L'invention concerne en outre un composant inductif (4) qui peut être fabriqué par le procédé.
EP14805542.9A 2013-11-25 2014-11-25 Dispositif et procédé pour enrouler un fil pour un composant inductif Active EP3074989B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013113005 2013-11-25
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Publication number Publication date
US20160268043A1 (en) 2016-09-15
DE112014005353A5 (de) 2016-08-04
EP3074989B1 (fr) 2021-03-10
WO2015075261A1 (fr) 2015-05-28
JP6471310B2 (ja) 2019-02-20
US10079093B2 (en) 2018-09-18
JP2017500737A (ja) 2017-01-05
US20180358176A1 (en) 2018-12-13
JP2019071443A (ja) 2019-05-09

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