EP2272072A1 - Bobine et procédé de fabrication d une bobine - Google Patents

Bobine et procédé de fabrication d une bobine

Info

Publication number
EP2272072A1
EP2272072A1 EP09728741A EP09728741A EP2272072A1 EP 2272072 A1 EP2272072 A1 EP 2272072A1 EP 09728741 A EP09728741 A EP 09728741A EP 09728741 A EP09728741 A EP 09728741A EP 2272072 A1 EP2272072 A1 EP 2272072A1
Authority
EP
European Patent Office
Prior art keywords
coil
electrical lines
electrical
winding
lines
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
EP09728741A
Other languages
German (de)
English (en)
Other versions
EP2272072B1 (fr
Inventor
Bernhard Roellgen
Herbert-Maurizio Cardarelli
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 EP2272072A1 publication Critical patent/EP2272072A1/fr
Application granted granted Critical
Publication of EP2272072B1 publication Critical patent/EP2272072B1/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
    • H01F17/00—Fixed inductances of the signal type 
    • H01F17/04—Fixed inductances of the signal type  with magnetic core
    • H01F17/045—Fixed inductances of the signal type  with magnetic core with core of cylindric geometry and coil wound along its longitudinal axis, i.e. rod or drum core
    • 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
    • H01F41/064—Winding non-flat conductive wires, e.g. rods, cables or cords
    • H01F41/069—Winding two or more wires, e.g. bifilar 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
    • H01F41/082—Devices for guiding or positioning the winding material on the former
    • H01F41/084—Devices for guiding or positioning the winding material on the former for forming pancake coils
    • 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
    • H01F27/02—Casings
    • H01F27/022—Encapsulation
    • 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
    • H01F27/2828—Construction of conductive connections, of leads
    • 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
    • H01F27/323—Insulation between winding turns, between winding layers
    • 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
    • H01F41/12—Insulating of windings
    • H01F41/127—Encapsulating or impregnating
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/4902—Electromagnet, transformer or inductor
    • Y10T29/49071—Electromagnet, transformer or inductor by winding or coiling

Definitions

  • the invention relates to a coil and to methods for producing coils.
  • the object is achieved by a coil according to claim 1. Furthermore, the object is achieved by a method according to claim 12 and a method according to claim 24.
  • Advantageous embodiments of the high-performance coil or the method of production are the subject of dependent claims.
  • a coil comprising at least four electrical lines.
  • the electrical cables are wound around a common winding center. Over the entire length of the coil, each of the at least four electrical
  • the winding center is the respective geometric center of the windings to understand. Viewed over the entire length of the coil, the winding center corresponds for example to the longitudinal axis of the coil.
  • the individual windings of each individual electrical line are arranged side by side over the entire length of the coil.
  • the windings of the next outward adjacent electrical line are arranged directly over the windings of the electrical cables arranged further inside.
  • the distance of the first electrical line is constant over the entire length of the coil.
  • the distances between the further electrical lines have, corresponding to their position, a greater distance to the winding center, wherein the distance of each individual electrical line preferably remains constant over the entire length of the coil.
  • the electrical lines in the coil windings of the coil are insulated from each other.
  • the mutual insulation of the lines reduces eddy current losses to a minimum.
  • the at least four electrical lines are electrically conductively connected to each other, so that the lines are preferably connected in parallel.
  • the electrical lines are preferably connected to each other at least at the ends of the coil by means of solder bridges. The equalizing currents flowing through the individual electrical leads are thus minimized within the winding.
  • the coil is particularly suitable for high frequency applications.
  • the coil is used for example at high currents.
  • the current of the coil is divided by flows on the at least four parallel electrical lines. Due to the almost ideal nature of the windings, the coil can be used in almost every area in which such coils are needed.
  • the electrical leads comprise twisted individual wires. These are preferably twisted strands with thin individual wires.
  • Each current-carrying electrical conductor has a certain inductance due to the surrounding, caused by the current magnetic field. To increase the inductance of the electrical conductor can be provided with a certain number of turns. Due to the magnetic concatenation (flux linkage) of the individual windings with each other, due to the close proximity
  • the inductance of wound coils increases in square with the number of turns.
  • the coil is preferably constructed such that the coil has a self-supporting shape by mechanically interconnected electrical wires wound around a winding center.
  • the self-supporting shape of the coil is preferably achieved by the mutually mechanically connected electrical lines.
  • the coil therefore preferably does not require a bobbin that maintains the stability of the coil.
  • the electrical lines are at least partially mechanically fixed to each other.
  • the electrical lines are mechanically interconnected at regular or even irregular intervals. Due to the interconnected electrical cables, which are connected to a wound coil winding center, the coil reaches a self-supporting stability of their shape.
  • the electrical lines have mechanical connections with each other at regular intervals.
  • these can be enveloped, for example, with a thermoplastic which softens during heating, for example by means of infrared light or a hot air flow, and then demoulded and connects the lines to one another.
  • Wires that are wrapped with a thermoplastic material are also referred to as baked enamel wires.
  • the electrical leads can be connected to one another, for example, by applying UV-curing adhesives.
  • the application of the UV-curing adhesive can be done, for example, while the individual lines are on a guide roller.
  • the application of a UV-curing adhesive may occur shortly after peeling off the guide roll.
  • the curing of the adhesive takes place for example by means of UV light, which is generated for example by means of a UV LED array.
  • a flashlamp can be used with curing by the UV light within 200 ms.
  • the mechanical connection of the lines can be carried out, for example, by gluing by means of an underlying piece of adhesive film.
  • the bonding by means of adhesive film can for example be done shortly before a first pressure roller with the upward adhesive layer in the guide roller.
  • the lines can be connected by weaving, for example, with a plastic yarn.
  • a plastic yarn for example, polyester is suitable as a base material.
  • the plastic yarn may, for example, be provided with a baked enamel layer or a pressure-sensitive adhesive.
  • the plastic yarn is injected, for example, by means of an air flow between the individual lines.
  • the electrical lines connect to the plastic yarn, for example, additionally by means of pressure. Alternatively, the electrical wires can connect to the yarn by heating.
  • the coil may have a round, elliptical or rectangular shape as the coil cross section.
  • a circular shape is the best possible shape.
  • the inner electrical leads of the coil have a length that is shorter than the length of the next outwardly adjacent electrical lead.
  • the parallel lines are preferably connected together so that the length of the outermost line is longer than the length of the inwardly adjacent line, wherein the length of the electrical lines thus decreases inwardly.
  • the electrical lines Due to the different lengths of the electrical lines which are mechanically connected to one another, the electrical lines thus have a curved shape after connection.
  • the interconnected lines run in the form of a helical band, which corresponds approximately to the shape of an Archimedean screw.
  • the respective ends of the electrical leads have electrical contacts.
  • the beginning and the end of each line is preferably designed as a pin. At low mechanical loads, these pins are sufficient to allow mounting of the device.
  • the ends may be formed, for example, as SMD solder pads to the ferrite core.
  • the ends of the electrical lines are each connected to separate contact pins.
  • Contact pins or solder pins can act on the contacts higher mechanical loads without the ends change their original position and shape.
  • the inner diameter of a coil as described above can be reduced to a minimum by the type of winding described above and the self-supporting property.
  • the coil can already be used as an air coil, which is achieved by a winding described above, as a component.
  • the coil in this case has no additional bobbin, which would contribute to increase the stability.
  • the theoretically available changing room is completely available.
  • a larger usable changing room is available.
  • Lamp chokes advantageous.
  • the construction of lamp inductors requires relatively large numbers of turns, which are installed in flat ferrite cores, so that a desired switching frequency of 45 kHz, for example, can be achieved.
  • the height of the inductors is limited by the relatively low height of the standard housing used.
  • a plurality of coils with different diameters as described above can be inserted into one another or placed one above the other.
  • the coils are galvanically separated from each other and thus have windings which are magnetically coupled.
  • tubular plastic spacers inserted between the individual coils.
  • the bobbin may function as a transformer by weaving yarns of polyester or nylon suitably incorporated into the conduits.
  • the coil has an inner layer of windings of one or more electrical conductors which have been followed by one or more layers of windings of insulating material. Then follows again one or more layers of windings of an electrical conductor.
  • ferrite cores are often used.
  • the ferrite core is in this case preferably arranged such that the windings of the coil are guided around the ferrite core.
  • Ferrite cores can be designed as ring cores, rod cores or in any other form.
  • An air gap in the otherwise closed course of a ferrite core reduces the magnetic flux density of the core considerably and thus causes z.
  • B. a linearization of the magnetization characteristic, according to the relationship between magnetic field strength and magnetic flux density of the component. The magnetic saturation of the core material thus occurs only at much higher field strengths. In the air gap of storage chokes, a substantial portion of the magnetic energy is stored.
  • ferrite cores having three legs such as E cores, which preferably have a large air gap in the area between the two center limbs
  • bobbins are often used with a pillow-shaped portion of the coil. Under a pillow is a
  • a cushion can be achieved with the coil described above, for example, by pulling apart the windings in the region of the air gap.
  • the targeted stretching of the coil ensures that only a few windings of the coil are located in the area of the air gap.
  • a circular segment-shaped plastic part can be arranged, for example, in this area. The plastic part may be inserted, for example, in the region of the air gap.
  • the preferably pressed coil can be provided, for example, with an additional potting compound.
  • the potting compound serves as an insulating protective layer. Furthermore, the coil through the layer of potting compound on a further stabilization.
  • At least four electrical lines are pressed by means of at least a first and a second conical pressure roller on a preferably conical guide roller.
  • the guide roller has guides, which are preferably arranged concentrically around the axis of rotation of the guide roller.
  • the guide roller has the shape of a truncated cone.
  • the guides may be arranged as groove-shaped, concentric depressions on the guide roller.
  • Each of the at least four electrical lines is guided in a separate guide of the guide roller.
  • the electrical leads are preferably mechanically connected to each other during rotation of the guide roller. After the circulation of the guide roller, the electrical lines in the form of a helical band.
  • the pressure rollers are preferably mounted with respect to shape and size accurately to the guide roller.
  • the first pressure roller leads the electrical lines with the speed corresponding to the respective radius of the guide roller to the guide roller.
  • the second Andrucksrolle is also precisely matched to the leadership role.
  • the lines are mechanically interconnected.
  • the connection of the individual lines can take place, for example, according to the alternatives described above for the component
  • the preferably pressed coil can be immersed in a trough with potting compound after winding. This creates a protective layer, through which the winding is further fixed. The winding thus also receives an insulating protective layer.
  • Another method for producing a coil is a method in which at least four electrical lines are wound around a rotating axis of a winding tool by means of a wire guide.
  • each of the at least four electrical lines has a separate wire guide.
  • the individual wire guides are arranged side by side in a single component.
  • the electrical lines are in a winding plane perpendicular to the axis of rotation of the
  • Winding tool is arranged, wound around the axis of rotation. With increasing number of turns, the wire guide is guided parallel to the axis of rotation, so that a winding is formed.
  • the electrical leads are preferably mechanically interconnected during winding.
  • the first ends of the electrical lines are inserted in a guide of a first winding tool.
  • the guide can be formed for example by a slot or a recess in the winding tool.
  • the electrical lines are fixed in the recess.
  • the inner diameter of the coil to be wound is determined by the outer diameter of the rotating axis around which the wires are wound.
  • the wire guide moves at the speed in the winding direction, with which the already wound up winding grows.
  • a shield arranged on the wire guide, which is arranged concentrically around the axis of rotation, can serve, for example, to exert pressure on the already finished area of the coil, so that the position of this area can no longer change.
  • the wire ends can, for example, be manually introduced into further slot-shaped depressions of a second winding tool.
  • the second winding tool is connected to the first winding tool via, for example, a coupling with each other and rotates in the same speed and with the same direction of rotation, as the first winding tool.
  • the winding is heated during winding with an infrared radiator or a hot air flow above the softening point of the thermoplastic layer.
  • the coil can be taken after cooling below the softening temperature of the thermoplastic layer of plastic from the form-giving winding tool. The previously inserted into the wells of the winding tools ends are taken out of this case.
  • the coil can be fixed, for example, by means of a fast-curing adhesive which is introduced during winding.
  • cables of any type can be used.
  • the adhesive can, for example, enforce the entire winding.
  • only the end or the beginning of the roll can be penetrated by an adhesive layer.
  • winding tools which consist of Teflon, for example, acrylate adhesives or epoxy resins can be used without causing problems during demoulding.
  • the preferably pressed coil can be immersed in a trough with potting compound after winding. This creates a protective layer through which the
  • Winding is further fixed.
  • the winding thus also receives an insulating protective layer.
  • the coil described above is preferably used as a high-frequency choke in the range of 30 kHz to well over 5 MHz.
  • twisted strands achieves a reduction in the proximity effect.
  • strands of 30 to 50 twists / meter are used. Preference is given to using strands having a number of preferably up to 200 twists per meter.
  • the coil has a high DC resistance at low frequencies compared to a flat coil. At high
  • a layered wrap with For example, 27 turns has, for example, a RM6 core of N49 material, 0.48 ohms air gap, 350 ohms frequency, 0.78 ohms resistance, and 750 kHz, 2.86 ohms resistance ,
  • a winding as described above has a resistance of 1 ohm at the same number of turns and the same core at 350 kHz, but at 750 kHz only a resistance of 2 ohms.
  • the coil Due to the higher Q-factor, the coil has a narrower and higher resonance curve at high frequencies (eg 500 kHz) when excited at the 3rd, 5th and 7th harmonic.
  • high frequencies eg 500 kHz
  • FIG. 1 shows a schematic structure of a coil
  • FIG. 2 shows a schematic structure of the windings of a coil
  • FIG. 3 schematically shows a first apparatus for producing a coil
  • FIG. 4 shows schematically another device for producing a coil.
  • FIG. 1 shows a schematic diagram of a first embodiment of a coil 1.
  • the distance d of the electrical line 2 to the longitudinal axis of the coil 1 is equal over the entire length of the coil 1.
  • the distances between the further electrical leads 2 'to the longitudinal axis of the coil 1 are also approximately constant over the entire length of the coil 1.
  • the coil 1 has an inner diameter D1, which is approximately equal over the entire length of the coil 1.
  • the electrical lines 2, 2 'of a winding plane are preferably arranged uniformly one above the other. By co-winding the electrical lines 2, 2 'is achieved that the electrical lines 2, 2' come to lie directly above each other.
  • the electrical lines 2, 2 'are electrically connected together.
  • the coil 1 preferably has at the beginning and at the end of an electrical contact 4, via which the coil 1 can be electrically connected.
  • the coil 1 Due to the windings of the electrical lines 2, 2 ', the coil 1 has a sufficiently high stability, so that the coil 1 does not require an additional bobbin.
  • a ferrite core 5 may be inserted.
  • the coil 1 may also be pushed, for example, onto the arms of a ferrite core having an E-shape.
  • the coil 1 is pulled apart, so that a kind of cushion is created in the area of the air gap of the E-cores. In the area of the pillow are ideally no, or as few turns.
  • FIG. 1 a part of the turns is marked as area A.
  • the area is shown enlarged in FIG.
  • FIG. 2 shows a section of the coil from FIG.
  • Figure 2 shown as strands.
  • each of the strands about 12 individual wires, which are twisted into each other.
  • the electrical leads 2, 2 ' may also consist of individual wires, rectangular flat wires or other wire forms.
  • the individual electrical lines 2, 2 ' are arranged exactly one above the other.
  • the distance of the first electrical line 2 to the winding center of the coil 1 is approximately equal over the entire length.
  • a second 2 'and further electrical lines are arranged, which are wound together with the first electrical line 2 to a common winding center.
  • FIG. 3 schematically shows a first possible arrangement for producing a coil 1, which is shown in FIGS. 1 and 2.
  • the first pinch roller 11 presses the electrical leads 2, 2 'on guides 13 of a guide roller 12.
  • the first pinch roller 10 is adapted in shape to the guide roller 12 and rotates at the same speed as the guide roller.
  • the guide roller 12 has a conical shape in the illustrated arrangement.
  • a second pressure roller 11 is arranged at an angle of approximately 90 ° to the first pressure roller 10. The second pressure roller 11 is arranged at an angle of approximately 90 ° to the first pressure roller 10.
  • Pinch roller 11 is like the first pinch roller 10 adapted to the shape and size of the guide roller 12 and rotated at the same speed.
  • the electrical lines 2, 2 ' by means of an infrared line emitter 15 mechanically connected.
  • the electrical lines 2, 2 ' for example, a thermoplastic plastic sheath (baked enamel wires), which stick together when heated.
  • the first pressure roller 10 can additionally be heated so that the thermoplastic plastic coating (baked enamel layer) in the region of the first pressure roller 10 to slightly below the first thermoplastic plastic coating (baked enamel layer) in the region of the first pressure roller 10 to slightly below the first thermoplastic plastic coating (baked enamel layer) in the region of the first pressure roller 10 to slightly below the first thermoplastic plastic coating (baked enamel layer) in the region of the first pressure roller 10 to slightly below the first thermoplastic plastic coating (baked enamel layer) in the region of the first pressure roller 10 to slightly below the first
  • Softening temperature of the plastic wrap is heated.
  • the electrical leads 2, 2 ' can also be interconnected by means of a UV-curing adhesive.
  • the adhesive can be applied, for example, as long as the electrical leads 2, 2 'are located in the guides of the guide roller 12.
  • the adhesive can also be applied to the electrical leads 2, 2 'shortly after leaving the guide roller 12.
  • the curing of the adhesive takes place by means of UV light from a UV LED array or a flashlamp, preferably within 200 ms.
  • the adhesive strips are placed only shortly before the first pressure roller on the guide roller 12 with the upward adhesive layer.
  • the mechanically interconnected electrical lines 2, 2 ' have a helical shape.
  • the helical shape is due to the fact that the length of the outermost electrical line 2 is longer than the length of the adjacent electrical line 2 '.
  • the next inwardly adjacent electrical line 2, 2 ' is always shorter in each case.
  • a helical endless belt is formed - similar to an Archimedean screw.
  • the endless band can, as shown in FIG. 3, for example collected in a co-rotating collecting cup 14.
  • the windings automatically overlap, which compresses the resulting winding.
  • the endless belt can be severed. Further compression of the loose roll in the collecting cup 14 can be done for example by simple pressing. Alternatively, the winding can also be further compressed by means of a shrink tube.
  • FIG. 4 diagrammatically shows a further arrangement for producing a coil 1.
  • a plurality of electrical lines 2, 2 ' by means of a two-part winding tool 102, 103 wound around a rotating shaft 101.
  • the ends of the electrical leads 2, 2 ' are in slot-shaped recesses 105 of the first winding tool
  • the two halves of the winding tool 102, 103 are set at the same speed and direction in rotation. In order to achieve a synchronization of the two winding tools 102, 103, the two halves of the winding tool 102,
  • the forming winding tool 102, 103 is in two parts, so that the finished winding after winding can be easily removed from the winding tool 102, 103.
  • the rotating axis 101 preferably has the outer diameter D2, which corresponds to the inner diameter Dl of the coil 1 to be wound.
  • a wire guide 100 is arranged in the region of the rotating axis 101.
  • the electrical lines 2, 2 ' are wound in the winding plane one above the other about the rotating axis 101.
  • the electrical line 2 ' which has the smallest distance d to the winding center, which is here formed by the rotating axis 101, guided at a lower speed about the rotating axis 101 as further outwardly disposed electrical lines 2.
  • a shield 104 is parallel to the wire guide.
  • the shield 104 and the wire guide 100 are arranged on a slidable in the x-direction slide, which is not shown here for reasons of clarity.
  • the carriage shifts the wire guide 100 and the shield 104 with increasing winding along the rotating axis 101.
  • the shield 104 additionally causes, because of strong pressure on already finished wound areas of the coil 1, these areas can no longer change their position.
  • Recesses 105 of the right winding tool 103 inserted manually or by means of a tool. In this case, the wire guide 100 is no longer moved, so that further pressure can be exerted on the already wound areas of the coil 1 by the shield 104.
  • the finished wound coil 1 can be removed from the winding tool 102, 103.
  • UV-curing adhesive which is introduced during winding.
  • the adhesive can pass through the entire winding, or alternatively only partial area such as the beginning or end of the roll.
  • the parts of the assembly which come in contact with the adhesive may be made of Teflon. This makes it possible to use epoxy or acrylic resins to stabilize the coil 1, without causing problems during demoulding.
  • the invention is not limited to the number of elements shown.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Coils Of Transformers For General Uses (AREA)
  • Insulating Of Coils (AREA)

Abstract

L'invention concerne une bobine qui comporte au moins quatre conducteurs électriques (2, 2'), les conducteurs électriques (2, 2') étant enroulés autour d'un centre d'enroulage (3) commun. Chacun des quatre conducteurs électriques (2, 2') ou plus présente sur toute la longueur de la bobine (1) une distance constante avec le centre d'enroulage (3) de la bobine (1). La bobine (1) est en soi stable.
EP09728741.1A 2008-03-31 2009-03-23 Bobine et procédé de fabrication d une bobine Active EP2272072B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008016488A DE102008016488A1 (de) 2008-03-31 2008-03-31 Spule und Verfahren zur Herstellung einer Spule
PCT/EP2009/053391 WO2009121749A1 (fr) 2008-03-31 2009-03-23 Bobine et procédé de fabrication d’une bobine

Publications (2)

Publication Number Publication Date
EP2272072A1 true EP2272072A1 (fr) 2011-01-12
EP2272072B1 EP2272072B1 (fr) 2015-07-22

Family

ID=40709796

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09728741.1A Active EP2272072B1 (fr) 2008-03-31 2009-03-23 Bobine et procédé de fabrication d une bobine

Country Status (6)

Country Link
US (1) US9424973B2 (fr)
EP (1) EP2272072B1 (fr)
JP (1) JP5753488B2 (fr)
CN (1) CN102047356A (fr)
DE (1) DE102008016488A1 (fr)
WO (1) WO2009121749A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009008110A1 (de) 2009-02-09 2010-08-19 Epcos Ag Hochfrequenz-Schwingdrossel
DE102014218874A1 (de) 2014-09-19 2016-03-24 Forschungszentrum Jülich GmbH Spule mit hoher Güte
MX2019003767A (es) 2016-10-03 2019-07-01 Smartwash Solutions Llc Sistema para controlar el agua utilizada para procesamiento de alimentos industriales.
JP6589934B2 (ja) * 2017-05-12 2019-10-16 株式会社村田製作所 巻線装置及びコイル部品の製造方法
JP7180559B2 (ja) * 2019-07-10 2022-11-30 株式会社村田製作所 コモンモードチョークコイル
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CN102047356A (zh) 2011-05-04
WO2009121749A1 (fr) 2009-10-08
DE102008016488A1 (de) 2009-10-01
US9424973B2 (en) 2016-08-23
US20110068886A1 (en) 2011-03-24
EP2272072B1 (fr) 2015-07-22
JP5753488B2 (ja) 2015-07-22
JP2011517077A (ja) 2011-05-26

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