EP1839320A2

EP1839320A2 - Device and method for winding a closed toroidal core

Info

Publication number: EP1839320A2
Application number: EP06707682A
Authority: EP
Inventors: Jan Boye; André NAUJOKS; Manfred Janasek
Original assignee: Beotechnic GmbH
Current assignee: Beotechnic GmbH
Priority date: 2005-01-10
Filing date: 2006-01-10
Publication date: 2007-10-03
Also published as: WO2006072635A3; DE102005062485A1; JP2008527703A; WO2006072635A2

Abstract

The invention relates to a device for winding an, in particular, closed toroidal core with winding material. To this end, the device has at least one magazine winding support for pre-winding and subsequently winding the winding material onto a toroidal core. The aim of the invention is to improve the design of this device that is advantageous with regard to use so that the magazine winding support (4), in its cross-section, which intersects a toroidal core positioning plane of the device (1) surrounds a hollow space (6) for accommodating a toroidal profile cross-section of a toroidal core (2) that can be wound in the device (1), and is open or can be opened in the peripheral direction. The invention also relates to a method for winding an, in particular, closed toroidal core (2) with winding material (3), the winding material (3) being pre-wound to form a magazine spool (36) and wound onto the toroidal core (2) from the magazine spool (36), and aims to provide an improved design so that the pre-winding for forming a magazine spool (36) ensues whereby the magazine spool (36) forms an inner hollow cross-section (6') that is larger compared to the toroidal core profile cross-section and surrounds a toroidal core section therein. The invention further relates to toroidal core chokes and toroidal core transformers that can be produced with the inventive device and according to the inventive method.

Description

Device and method for winding a closed ring core

The invention initially relates to a device for winding a closed ring core with winding material, such as metallic wire or strip, in particular for the production of chokes or transformers for the kilowatt to megawatt range, wherein the device has at least one magazine winding carrier for pre-winding and subsequent wrapping of the winding material having a ring core.

A toroidal transformer for high power, which can be produced in particular using such a device, is suitable, for example, for the distribution of electrical energy and has technical and economic advantages compared to the so-called oil and dry-type transformers currently used there. However, in the case of the known ring transformers for correspondingly high output during production, there is the difficulty of applying windings with sufficiently large wire or strip cross sections, as a result of the correspondingly high rigidity of the conductor material, to the prefabricated toroidal cores. A device of the type mentioned for winding closed ring cores for transformers and chokes high performance is known in the art from WO 95/12887. Therein, it is proposed that the winding material be pre-wound onto a winding roll passing through the ring core opening, ie onto a magazine winding carrier, and subsequently guided around the ring core and through its inner opening, the winding material being wound around the toroidal core. One limitation is that the size of the winding roll with the length supply of winding material located thereon depends on the clear internal cross section of the ring core. The document therefore proposes for the production of chokes or transformers for high power with correspondingly large conductor cross-sections, that with the limited length stock initially on a toroidal core portion spirally a first winding segment is applied. Subsequently, to apply another Winding segment at another ring core portion of the toroidal core and the winding device rotated to each other and then made the wrapping of the toroidal core with another winding roll, so that after multiple repetition, a star-shaped arrangement of several, distributed over the ring core circumference winding segments. This means that the known winding machine stopped for each additional winding roll and new winding material must be inserted therein. The winding material reel spools have a certain size, which means that the toroidal core can not be reduced below a certain size. It should be added that after wrapping the initially separate windings or coils must be interconnected with each other, which in addition to the additional time and the possibly increasing total copper resistance also means that sources of error are possible. In addition, a complete enclosure of the toroidal core can not be guaranteed, so that restrictions in terms of size and efficiency are to be accepted.

Against this background, the object of the invention is to improve the usefulness of a device of the type mentioned at the outset so that, in particular, the existing disadvantages are avoided as far as possible.

This object is achieved according to the invention first and essentially according to claim 1, wherein it is stated that the magazine winding carrier in its cross section which intersects a Ringkernpositionierebene the device surrounds a cavity for receiving a ring profile portion of a wound in the device ring core and in Umf section is open or obvious. This allows, on the one hand, for the magazine winding carrier to have a comparatively larger circumference in the cross section measured at the toroidal core profile cross section and for there to be no limitation by the size of the inner annular core opening since a magazine winding carrier enclosing a toroidal core section in the cross section is used. ger for wrapping or wrapping of the winding material from there to the ring core does not need to be performed as in the prior art with its entire cross section through the inner annular core opening. The diameter or circumference of the magazine winding carrier can be made larger in the cross-section compared to a toroidal cross-section to a desired extent, for example, which may be approximately twice, three times or more. It is advantageous that a relatively large length supply of the winding material, even with large, eg. For high-power transformers required wire or tape cross-section, is to stockpile on the magazine winding carrier during pre-winding. After the pre-winding, in which the magazine winding support encloses a portion of the toroidal core, the winding material can be directly, or radially inwardly and preferably substantially concentrically wound on the toroidal core, whereby also the mentioned winding material with a comparatively large cross section according to the Enforcement of the toroidal core portion given geometric conditions can be processed in a suitable manner. Preferably Ringkernpositioniermittel may be provided which are adapted to a positioning of a toroidal core to be wound, so that it passes through the cavity in the magazine winding carrier during the pre-and Umwickeins. The toroidal positioning means can be arranged outside and / or inside the magazine winding carrier and, in particular, also be suitable for the preferably motorized drive of a toroidal core in its circumferential direction. As stated at the outset, the circumference of the magazine winding carrier with respect to a passage cross section of the toroidal core is partially open or obviously executed. This means that in such a cross section the cavity present in the magazine winding carrier lies within this sectionally open or revealable circumference and under an enclosure of a toroidal core section by the magazine winding carrier according to the invention, depending on the embodiment, also with a partially open or interrupted circumference understand is. With regard to the partially open or revealed in cross section circumference of the magazine winding carrier can be designed as a device either in one piece or in several parts. By In comparison to conventional magazine reels, it is possible to achieve that in many applications, even with a thick conductor cross-section, when rewinding onto the toroidal core to form a primary or secondary winding, it is necessary to completely dispense with a magazine change or reduce its frequency significantly the disadvantages described in the prior art in connection with the plurality of winding segments to be interconnected are reduced or even completely avoided. It is further preferred that toroidal drive means are provided, by means of which a toroidal core is rotatably drivable in its circumferential direction. In particular, it is preferred that the toroidal core drive means comprise three rollers or roller pairs arranged in a triangular arrangement in the ring plane of the toroidal core. For adaptation to a toroidal core or to the inner or outer abutment against its wall, at least some of the rollers or roller pairs can be adjustable in their position and connected in turn to the rotary drive of the toroidal core with a rotary drive. In conjunction with a peripheral drive of

Toroidal core there is the possibility of the winding material from the magazine winding carrier on the toroidal not only spirally, but in case of need in a desired manner also wound helically or helically coiled. In combination with the possible large length supply opens up according to the invention the possibility to wrap a closed ring core with a correspondingly coiled, over a desired part of the ring core circumference or the entire ring core circumference, possibly even over several revolutions, reaching winding. Furthermore, there is the possibility that, for applying the winding material to the toroidal core, there is provided an application device around a ring core cross-section, in particular a motor-rotatable application device. This can expediently have at least one, in particular resilient or supported by pneumatic or hydraulic pressure medium, pressure roller, by means of which the winding material during wrapping of the magazine winding carrier on the toroidal core is pressed against this. Alternatively or in combination, there is the possibility that the application device has several, preferably three, bending rollers, by means of which the zinwickelträger expires winding material in such a way that a desired looping of the toroidal core cross-section thereby further in particular independently comes about or, if appropriate, is favored in combination with a contact pressure element.

According to a first preferred embodiment, it is provided that the magazine winding carrier is formed as a hollow gate segment, which may preferably extend over approximately half the circumference with respect to a toroidal positioning plane, and whose core sheath is open or partially open with respect to a cross section lying transverse to this circumferential direction. It is further preferred that the hollow gate segment has two annular half-shells, which can be connected to one another or are separable from one another, preferably in the manner of the ring plane or ring-core-positioning plane, or parallel to it. In dissolved or in the open state, a toroidal core to be wound can be inserted into the interior of the half-shells and these can then be connected to one another. The ring torus is then available as a magazine wrap for pre-winding of winding material available. Depending on the outer or core diameter of the magazine winding carrier in the Angusumf ang perpendicular cross section and its circumferential extent (eg. About a quarter, preferably about half or a three quarters circumference) is a magazine winding carrier, which is suitable for receiving a considerable length supply of winding material, provided. The toroidal core to be wound can preferably be aligned concentrically relative to the hollow ring segment torus in the ring plane and / or cross-sectional plane perpendicular thereto. According concentric alignment are achieved for the winding or unwinding of winding material from the magazine winding carrier on the toroidal with respect to. A circular cross-section perpendicular to the symmetrical symmetrical, advantageously on a uniform wrapping impacting conditions. The wrapping or wrapping of winding material can advantageously take place directly from the hollow-gate segment on the toroidal core by means of said application device, in particular, this ter continuous reduction of the bending radius of the winding material. The Hohltorussegment may preferably be tuned to a toroidal core to be wound in such a way that its hollow cross-section for receiving the toroidal core cross-section including the windings to be mounted thereon is large enough and may be interchangeable in view of the possibility of adaptation to different toroidal cores and windings.

Concerning the first preferred embodiment, it is further preferred that for pre-winding there is a winding material feed means to the toroidal segment having bending rollers whose relative position to pre-bending of winding material to about equal to or greater than the pre-winding radius resulting on the hollow torus slightly larger prebending radius is customizable. For the processing of winding materials with different elastic and plastic material behavior in this regard, an adaptability of the feeder can be present for example by mutually position adjustable bending rollers. Further, it is preferable that the feeding means is adapted to supply winding material to the hollow gate segment in a direction containing a component in the hollow gate circumferential direction, ie, a component in or parallel to a toroidal core positioning plane. The winding material is thus fed to the magazine winding carrier or hollow torus in a generally pre-bent manner already like a helix. The supply can be carried out expediently starting from a front end of the hollow gate segment, from where the helically pre-bent winding material or its free end with running supply pushes onto the curved annular jacket. Depending on the winding material and Vorbiegeverhältnissen this postponement on the Ringtorus can run independently during pre-winding. Furthermore, if necessary, if, for example, the cross section of the winding material is too thick and / or the escapement on the ring torus segment should be too large, sliding rollers may also be provided on the ring torus segment, preferably to support the reeling. Also, in the cavity of the toroidal If necessary, torus elements for additional storage of the toroidal be provided.

According to a second preferred embodiment, there is the possibility that the magazine winding carrier has a plurality of annularly distributed guide elements for the winding material, in particular a plurality arranged to a roller ring guide rollers, wherein the radial position of the guide elements by means of releasable holders, in particular by means of radially oriented slots of a holding surface the releasable sliding brackets, changeable. Before the winding of winding material onto the magazine winding carrier, a wound core to be wound, preferably closed, can be introduced with a circumferential section between adjacent guide rollers of the magazine winding carrier in its inner cavity surrounded by the guide rollers, so that the magazine winding carrier circumference surrounds the toroidal core section, as hereinafter referred to With regard to a method according to the invention, pre-winding described in even greater detail can begin. With reference to the second preferred embodiment of the device, it can be provided that the application device for wrapping or wrapping winding material onto the toroidal core has a rotational body which has a passage opening for enclosing a toroidal core section, wherein the cross-section surrounding the passage opening transverse to the opening axis either divisible or the passage opening partially, in particular half-sided, is open. As in the case of the first preferred embodiment, the application device may preferably have a motor drive in order to achieve the rotational movement about the toroidal core cross section. In conjunction with a likewise suitable motor drive for the rotary drive of the ring core in the ring circumferential direction can also be independent of a specific embodiment, an electrical control with which influence the respective drive speeds to achieve windings on the toroidal core with the desired slope or a suitable Set ratio. With regard to the said rotational body of the application device, it is preferred that it is rotatably drivable about the toroidal core cross-section by means of a jig drive and that at least one pressure roller, which is pneumatically pivotable relative to the toroidal core cross-section within the plane of rotation, is provided on the rotational body. It is preferred that the pressure roller is mounted eccentrically on the rotational body on a pivot axis and that the pressure roller by means of a particular eccentric acting on the pivot axis pneumatic cylinder or piston is swivel bar, wherein the pneumatic cylinder for pressure storage has a check valve. The winding material, ie the band or the wire, can accordingly be spirally or preferably helically coiled around it by means of the application device under pneumatic pressure against the ring core. There is the possibility that the pneumatic cylinder is first charged prior to startup by means of a pneumatic line with a pressure in a desired height for each application and then the supply line is removed again, whereupon the pneumatic pressure in the cylinder is maintained according to the check valve. The application device can thus be driven unhindered, ie without restriction by supply lines, for rotation of the rotation body about the toroidal core cross section. At the end of the winding process, the pressure in the pneumatic cylinder can be selectively reduced again by actuation of the pneumatic valve, so that the pressure roller can easily be lifted off the toroidal core.

Another important in the context of the invention both as a development and in the context of possible independent claims aspect relates to an embodiment of a magazine winding carrier for the device according to the invention, which has a plurality of arranged on a roller ring guide rollers. According to this embodiment, it is possible for one or more of the guide rollers to be supported by a guide roller drive for assistance. tion of the winding and / or unwinding process of the magazine reel are coupled. While wrapping or wrapping of winding material on the toroidal in a likewise within the scope of the invention with freely rotatable, ie non-driven, guide rollers, the magazine wiper depending on the rotational position of the applicator or its pressure roller as needed independently with some inertia ref Angsbewegungen performs in the direction just required, this circumferential movement can be facilitated in motor drive of the guide rollers and thus improved. It is preferred that the plane of rotation of the application device is parallel to the magazine winding plane or coincides with it, wherein the rotational body lies in a projection on the magazine winding plane wholly or partly within the magazine winding. If the winding material is removed from the radially inside of the magazine winding and fed to the application device, a time-dependent varying distance between the inner circumference of the magazine reel and the contact point of the winding material at the toroidal core cross section results depending on the phase position of the pressing body moving around the annular core cross section. This requires a time-dependent different length and curvature of the applicator section supplied portion of the winding material, so that the magazine winding can independently perform quasi-demand a swirling rotational movement with freely rotatable guide rollers to compensate. The proposed motor drive now eliminates or at least reduces the influence of the inertia of the magazine reel. It is possible to equip all or only a certain portion of the guide rollers, each with a separate drive, for example with an electric motor, stepper motor, etc. Alternatively, however, a central or so far common drive would be conceivable. Advantageously, there is the possibility that means are provided for controlling, in particular for program control, and / or for controlling the landing gear drive and / or the guide roller drive, suitable for achieving a desired, in particular temporally variable, ratio of the speeds. th of Anlegeeinrichtung- and guide roller drives. In particular, it is also possible to drive the guide rollers time-dependent not only with different speed amount, but also in different directions or with different signs. It is further preferred that means are provided for programmatically controlling the application device drive and / or the guide roller drive, suitable for matching the speed of the drive means to the time-dependent provision of winding material of the magazine winding carrier for the application device. It is thus made possible that the leading from the inner winding of the magazine means to the applying device Drahtbzw. Belt section in accordance with the time-varying rotational position of the investment device each having a suitable length. An expedient refinement may be due to the fact that the means for controlling and / or regulating the drives are adapted to influencing the speed of the toroidal drive in accordance with the speed of Anlegeeinrichtungsantrieb and / or guide roller drive in the desired manner. Alternatively or in combination with a program control in which suitable characteristics for the speed ratio can also be predetermined on the basis of existing empirical values, a sensor may be present which has a size influencing the winding process, in particular one of the phase position of the application device and / or. or the magazine winding and / or the toroidal core and / or the position or the course of the winding material between magazine winding and application device generates dependent signal, which is fed to the means for controlling and / or regulating the drives.

Another aspect, which may have meaning in the context of the invention as a preferred embodiment or in the context of independent claims, relates to the guide rollers of a magazine winding carrier on which they are arranged to form a roller ring. Accordingly, there is the possibility that the axes of rotation of the guide rollers on the magazine winding carrier in winding radial direction are held longitudinally displaceable, further more in particular means for generating a spring-like force are present, with which the guide rollers are acted upon radially inward acting. A spring-like force is understood to mean, for example, a force generated by a spring and / or by a damper or a comparable manner. It is also possible, among other things, to wind up the magazine reel radially within the roller ring formed from the guide rollers or create by the winding material to the spiral magazine reel as the outermost layer on the outside of the guide rollers unroll, is fed with the guide rollers increasing diameter of the magazine winding can escape radially outward. Suitably, a supply device for the active supply of winding material to the magazine winding carrier may be provided, which has at least three rollers, at least one of which is connected to a rotary drive, wherein the rollers are arranged to each other, that the winding material to create a curvature by two of Roll nip formed runs and is pressed against the driven roller. The creation of the magazine reel radially inside the guide rollers has the advantage that prior to the rewinding or unwinding of the winding material from the magazine reel to the toroidal core, it is possible to dispense with the transfer of the guide rollers from radially inward to radially outward.

Another aspect of the invention, which may have meaning as a preferred embodiment or in the context of independent claims, relates to the Ringkernpositioniermittel the toroidal core. Accordingly, there is the possibility that at least three roller rollers are provided as Ringkernpositioniermittel which span by their spaced apart position geometrically a Ringkernpositionierebene and which are in particular mounted on a Ringkernpositioniertisch, the rollers optionally together sam, ie distance constant, in particular by displacement of the toroidal positioning table, are positionally variable in at least a first Direction extending in particular in the direction or parallel to the line of intersection of Ringkernpositionierebene with the spanned by the magazine reel magazine winding plane, and wherein optionally at least one of the roller rollers is preferably individually variable relative to the other rollers in the first direction roll. In addition, there is also the possibility that the roller rollers are common, ie with a constant distance to each other, are positionally variable in a second direction, which extends in the direction or parallel to Ringkernpositionierebene and in particular to the first direction. It is preferred that the roll rollers are mutually variable in position in the first and / or second direction relative to the application device, ie the means for winding the winding material onto the toroidal core, and / or to the magazine winding carrier. Furthermore, a particular programmable logic controller (PLC) or control for controlling at least one actuator for the common change in position of the roller rollers and an actuator for the relative change in position of the at least one roller roller can be provided. Said control or regulation may preferably be adapted or adapted to achieve or maintain a desired position of a ring core which can be positioned between the roller rollers during winding operation, ie during winding of the winding material onto the toroidal core, and / or during the Winding operation to achieve a desired pressure of roller rollers against the toroidal core and maintain. The features mentioned offer, in particular in conjunction with a programmable logic controller (PLC), a number of possible applications and advantages, which are described below as examples. The PLC system can be coupled either with all or alternatively only with a specific selection of rotary and / or actuators of the device. The PLC enables fast response times and positioning times thanks to fast cycle times and, with its small size, also offers the further advantage that it is well suited for controlling servo drives, which can be provided, for example, for adjusting the position of roll rollers. A PLC thus allows a high Dynamics combined with high precision, whereby the operation can be carried out by the so-called HMI technology and software tools are available for programming the PLC and the control or the panels. On a PLC provided as a controller, the respective servo amplifiers, which are used for the power control of the servo drives, can be connected via a bus system. Furthermore, sensors for control tasks and safety devices, as well as actuators for hydraulic or pneumatic power drives, which are available according to requirements, come into consideration.

Said control or regulation allows in connection with the described positioning or adjustment of the rollers in a significant according to the invention in the context of independent claims significant method for winding a toroidal core with the winding device according to the invention, in which used as a winding material band material and from the magazine winding on the toroidal core spirally wound coiled that the toroidal core winding plane laterally offset to achieve a desired thread pitch, preferably laterally offset approximately parallel, is positioned to a center line intersecting the ring core in its ring plane. In this case, the plane in which the winding material is wound onto the toroidal core by means of a pressure roller circulating around the annular core cross-section is referred to as the toroid winding layer. The adaptation of the toroid winding plane to the desired helical shape, which is possible in the described manner, is particularly advantageous when the strip material used has a large or wide cross section. Said positioning of the toroidal winding plane with respect to the toroidal centerline can be effected by means of a suitable positional adjustment movement of the toroidal core by means of the SPS acting on the actuators of the roller rollers or of the toroidal core positioning table. For example, one or more actuators can be used for changing the position of the toroidal positioning table in different directions (eg in an X and Y direction) and an actuator for changing the position of at least one roller roller relative to the other rollers in table level be present. Alternatively, two actuators may be present for adjusting the toroidal positioning table, which can pivot the table in two horizontal planes. The vertical positioning of the toroidal core with respect to the table can be ensured by the guide rollers themselves, for instance by their curved mantle contour. Servo drives can preferably be used as actuators and / or other drives. The preferably programmable logic controller or the control can be used to control the toroidal core drive means, ie, for example, a drive motor for rotating a serving as a toroidal core roll roller, and / or the Anlegeeinrichtungsantriebs, ie for example a motor for driving a pressure roller around the toroidal core around, and / or the guide roller drive of the magazine reel in coordination or in coordination with the control of the actuators for common or single change in position of rolls to be suitable or adapted. This makes it possible in a method according to the invention that, when winding winding material onto the toroidal core, depending on the toroidal core winding circumference increasing as a result of the winding, the position and spacing of roller rollers used as toroidal core positioning means maintain a desired toroidal core position and / or pressure Rollers against the toroidal core can be changed automatically suitable. Alternatively or in combination, when winding winding material is wound onto the toroidal core depending on the toroidal core winding circumference due to winding, the toroidal peripheral speed allows maintaining a desired ratio to the winding peripheral velocity in the toroidal core winding plane, ie the speed at which the winding material is wound on the toroidal core in the toroid winding plane can be adjusted automatically in a suitable manner. Another aspect of the invention, which may have meaning as a preferred embodiment or in the context of independent claims, relates to an embodiment such that a Magazinwickelandruckrolle is provided by a pivoting means periodically pivotable in the magazine winding plane and in the peripheral region of the magazine winding radially outwardly attacking , Rotationally driven guide roller is pivotable from radially inward against the magazine winding. Preferably, the pivoting device actuating elements, for example. A first pneumatic actuator for pivoting in and out of the magazine winding plane and a second pneumatic actuator for pivoting on and off of the Magazinwickelinnenum- catch have, by means of the preferably programmable logic controller or the control depending on the Position of the pressure roller of the application device and / or signals of at least one sensor, which detects the position or the course of the winding material, are controllable. By means of the Magazinwickelandruckrolle, with which the magazine reel can be pressed against the rotationally driven guide roller, the driving force and thus the dynamics of the active magazine winding drive can be improved, so that the magazine winding when winding the winding material on the toroidal core depending on the geometric and speed ratios and depending on the variable phase position of the pressure roller can perform Umf angs motion with a short response time. In addition, it is prevented by means of the magazine winding roller in conjunction with the active magazine winding drive that in the course of the circumferential movements of the magazine reel, in particular with less stability of the removed inner loop, bending of the winding material can occur. Since, during the winding process, an inner layer of the winding material lifts off from the magazine reel at a certain point in time, the magazine reel press roller can be lifted off the inner circumference of the magazine reel by means of the swiveling device for a required, preferably short, period and can be swiveled out of the magazine reel plane. After lifting the next loop or layer from Magazinwickelumf ang the Magazinwickelandruckrolle can be pivoted back into the magazine winding plane and pressed again against the inner circumference of the magazine reel, this process can be repeated at each turn. The described features make it possible, in the case of a method according to the invention, which is also significant in the context of independent claims, to wind a toroidal core in which at least one guide roller is actively rotated during the winding of the winding material from a magazine winding carrier having a plurality of annularly distributed guide rollers by means of a programmable logic controller (SFS) a Magazinwickelandruckrolle pivoted in the magazine winding plane and pressed therein in the peripheral region of the radially outwardly of the magazine winding guide roller from radially inward against the magazine winding and to periodically alternately, preferably in a time interval, while the winding material passed through the toroidal opening is pivoted away from the magazine winding and out of the magazine winding plane. There is the possibility that the particular programmable logic controller or the control for synchronizing the feeder drive and the guide roller drive and preferably for adaptation, more preferably for increasing the drive speed of the guide roller drive in time intervals in which the Magazinwickelandruckrolle is pressed against the magazine reel is suitable ,

The invention further relates to a method for winding a closed ring core with winding material, such as metallic wire or strip, in particular for the production of chokes or transformers for the kilowatt to megawatt range, wherein the winding material is pre-wound into a magazine reel and from the magazine reel to the toroidal core is wrapped. A generic method is also known from WO95 / 12887, for which reference is made to the preceding explanations. Proceeding from this, the invention is based on the object, such To further develop advantageous methods, so that the existing disadvantages are avoided as much as possible. This object is achieved according to the invention first and substantially in accordance with claim 27, wherein it is pointed out that the winding of the winding material to a magazine winding takes place in such a way that the magazine winding forms an inner, compared to the annular core profile cross-section hollow cross-section and therein a toroidal core section encloses. For the resulting effects and advantages, reference is made to the related, the device according to the invention embodiments. It is preferred that the winding material is rewound from the magazine reel with respect to the central axis thereof radially inwardly, in particular with a continuous reduction of the winding radius to the toroidal core. A continuous reduction, ie an interim enlargement excluding change, of the winding radius is particularly advantageous for processing winding material with a large, especially for applications in kilowatt to megawatt range required cross sections, while the processing just such winding material according to the Rigidity of this ladder was especially problematic in connection with closed ring cores. Alternatively or in combination, there is the possibility that the ring core is continuously driven in the toroidal circumferential direction during the winding or winding of winding material from the magazine winding or from a magazine winding carrier, so that a helical or helical winding is formed on the toroidal core becomes. When wrapping, the winding material may preferably be applied to the toroidal core by means of a contact device rotating about the toroidal cross-section. In particular, there is the possibility that the winding material is pressed against the toroidal core during wrapping by means of a pressure roller provided on the application device. Alternatively or in combination, there is the possibility that the winding material is bent during wrapping by means provided on the application device bending rollers for abutment against the toroidal core. According to a first preferred variant of the method, which is preferably realized by means of the first preferred embodiment of the device according to the invention, the toroidal core can circumferentially, in particular concentrically, arranged in the cavity of a magazine configured as Hohltorussegment with querschnittöffenbarem or partially cross-open Kernmantel magazine winding carrier and then the winding material on the Magazine winding carrier are pre-wound. It is expedient for the winding material during pre-winding to be pre-bent before reaching the magazine reel carrier to a pre-bending radius which is smaller than or approximately equal to the resulting pre-winding radius on the magazine reel carrier. Also, it is preferable that the winding material in the pre-winding is fed to the winding core to obtain a helically wound magazine reel in a direction containing a component in the magazine-winding-holder circumferential direction.

Concerning a second preferred variant of the method, which is preferably to be realized by means of a device according to the invention according to the second preferred embodiment, the winding material can be pre-wound on a plurality of guide elements distributed in a ring-like manner, in particular on a guide roll having a plurality of guide rollers arranged in a roller ring become. After pre-winding according to the invention there is the possibility that the guide elements or guide rollers are successively removed from the inside of the magazine reel and reacted to the substitute support according to gradually against the outside of the magazine reel. It is advantageous that the magazine winding, ie the pre-wound on the magazine winding carrier winding material, starting with the inner end on the magazine winding carrier free end radially inward can be directly wrapped on the toroidal core, which is especially for the processing of winding conductors with large cross-section for Avoidance of otherwise difficulties caused by their great stiffness prove to be an advantage. Also with regard to the second preferred variant of the method, the pre-winding on the magazine winding carrier can be helical or helical, possibly also in several layers. However, in this variant it is preferred that the pre-winding be at least essentially spiral-shaped. Preferably, a device according to the invention according to the second preferred embodiment for the rotary drive of the magazine reel suitable drive means and preferably a control or regulating device for specifying the Umwickelvorgang favoring ratio of rotational speeds of the magazine winding and applying device. Accordingly, with reference to the second preferred variant of the method according to the invention, the procedure is such that the magazine reel is preferably rotationally driven by motor when rewinding or unwinding winding material, wherein preferably a targeted adjustment to the speed with which the application device is rotationally driven, to support the wrapping process. For carrying out the invention, toroidal cores of any known design are basically suitable, ie in particular toroidal cores with solid or with so-called wound cross section. In this case, the cross-section may have, for example, a round shape or, depending on requirements, a polygonal, polygonal or the like shape. The device according to the invention or the method are also suitable both for the conversion of closed toroidal cores and, on the other hand, basically also for open, slotted and so forth toroidal cores. With regard to the winding material, all materials known to a person skilled in the art are also suitable, in particular with, for example, a round wire or, for example, a rectangular, flat band cross section. On the one hand, it is suitable for bare, ie no insulating jacket exhibiting, winding material. In this case, for the production of insulating layers on the toroidal core, the winding material together with a separate insulating material (eg. Insulating tape) are pre-wound on the preferably same magazine winding carrier and from there co-layered adjacent to the toroidal core. Furthermore, already be provided with an insulating layer or insulating jacket provided winding material use.

As a further aspect, which may be of importance in the context of the invention both as a preferred embodiment and in the context of independent claims may be provided in a method for winding a particular closed toroidal core with winding material from a magazine reel that the winding material from the magazine reel in several wound coiled and substantially exactly superimposed layers on the toroidal core is wound to form at least one coiled winding strand whose total cross-sectional thickness corresponds to a particular integer multiples of the cross-sectional thickness of the winding material. Such a method is suitable, in particular with one of the devices described above, to wind a conductor with a thick cross-section, which is preferably suitable for the kilowatt-to-megawatt range of a coil or of a transformer, also on a closed toroidal core. The winding strand produced by the process according to the invention may, for example, have a square or rectangular cross-section whose edge lengths may preferably be in the range of a few millimeters to a few centimeters (for example in the range of 6 to 12 cm). The method avoids the difficulties previously encountered in processing one-piece or single-layer conductors with corresponding cross-sections. These lay in the fact that in order to achieve the high bending forces correspondingly strong and therefore complicated winding devices were needed. It should be added that when winding a thick conductor due to the large cross-section, ie due to the strains and tensile forces occurring in the edge phase, the risk of stress cracks was given and the winding single-layer conductor with a large cross section was very expensive. According to the proposal of the invention that the winding material is wound in several accurately fitting layers on the toroidal core, can be advantageous as a winding material Band material can be used whose cross-sectional width greater, in particular by at least about an order of magnitude, (ie, by about a factor of 10) is greater than the cross-sectional thickness or Baudicke. Such a thin band of conductor material is well deformable and can be processed by multiple accurate repetition of the helical winding process to a winding strand with a desired thicker conductor cross-section. If, for example, a square cross-section is to be produced with a band of 60 mm width and a thickness of 0.5 mm, the helical winding on the ring core can be carried out continuously over 120 revolutions of the ring core (or analogously for a band thickness of 1 mm over 60 mm) revolutions). It is possible that at each Aufwickel- rotation of the toroidal core, the tape is placed back in its transverse direction accurately to the already existing from the previous rotation helical wrapping. Depending on the selected rotational speeds of toroidal core on the one hand and application device on the other hand, a desired number of screw threads across the toroidal core can be obtained, for example in the range of 10 to 20 screw flights. To achieve an at least substantially accurate fit superposition of the layers, it is possible that prior to winding the winding material on the toroidal this coiled coiled is wrapped with a guide tape along which at least one longitudinal side guide aids project radially outward. The guide band may preferably consist of an electrically insulating material. By means of the guide means, the winding material, preferably strip material, is accurately positioned during winding in its transverse direction. An alternative to the guide strip may be that the ring core is coated before winding with a querstecköff enbaren Hohltorus, projecting from the outer sheath guide means for the winding material radially outward, wherein the guide aids spaced from each other along at least one thread coiled course are arranged and wherein the winding material on the Hohltorus under lateral contact with the Füh- is wound up. It may be sufficient if, depending on the number of screw threads, a certain number of guide aids lie only at opposite circumferential areas of the annular core cross-section. As a further alternative, it is contemplated that for the accurate winding of the winding material, sensors are used whose signal is, for example. Depending on the position of the winding material and used to drive control of the toroidal core and / or the application device to achieve a speed ratio suitable for accurate winding the drives becomes. After winding, it is possible for the formed winding strand to be cut in at least one place to make connections and for the two ends to be spatially separated to form the terminals. If, for example, a plurality of windings are to be formed for a toroidal coil, the winding leg can be separated analogously at a plurality of points distributed over the circumference. The drive of the device can be designed so that the ring core is driven by a motor (ie rotated) and the application device for the strip conductor rotates around the toroidal cross section with a correspondingly adapted speed depending on the desired number of turns of the winding. In this case, the magazine reel can either independently perform needs-based rocking turns in the circumferential direction or driven in the manner described above themselves. The guide aids, or nubs can be used inter alia as increments to determine the toroidal rotation speed.

A further aspect of the invention, which may have significance as a preferred embodiment or within the scope of independent claims, relates to a method for winding a toroidal core, the winding material being wound from the magazine winding in a plurality of thread-wound, substantially precisely superimposed layers, including insulator intermediate layers is wound on the toroidal core and wherein the beginning and end of the winding material as connections of the continuous winding ready- be put. Also in this context, the tailor-made winding can be carried out in the manner already described above. The difference to the alternative method already described, in which the winding strand is cut to form terminals, is that in the method proposed here no corresponding severing takes place so that the several layers of the winding material remain connected to each other continuously in series. The electrically conductive winding material can preferably already be coated with an electrically insulating intermediate layer (insulator intermediate layer), or the insulator intermediate layer can be fed to the winding of the toroidal core from a separate magazine winding. Thus, by means of the method, helically wound coils can be applied to a preferably closed toroid whose electrically effective number of turns is a multiple (eg double or quadruple) of the number of turns geometrically achievable on a ring core circumference with the desired turn pitch.

For further possibilities, the method according to the invention and in particular its preferred variants expediently further, reference is also made to the above description of the device according to the invention. As the above description shows, the invention is suitable for the production of a variety of toroidal coils, especially with closed ring core and with thick winding material (conductor wire or ribbon), as this ring core chokes and ring transformers for the high power range, especially for the kilowatt to megawatt range , is in use. In this case, the invention allows winding material also with preferably rigid cross-section of a magazine winding carrier with reduction of the bending radius directly either spirally or helically coiled directed radially inwardly wound on a toroidal core. The invention overcomes the difficulty associated with the stiffness of these conductors in the prior art. Due to the large size of the magazine wraps, Genvorrat coils can be produced with primary and, if necessary, additional secondary winding, which windings can consist of a continuous conductor instead of several segments, so that no internal interconnections are needed and accordingly circuit errors and contact resistance can be avoided. Compared to known techniques, the production of toroidal coils is simplified, and the toroidal core can be made even slightly smaller, so that, for example, a transformer is even more compact to produce. In addition, there is the advantage that even a closed ring core with the windings in the ring core circumferential direction can be completely enclosed in a helical manner, which proves to be an advantage in terms of efficiency. Moreover, it is possible to wind a primary and a secondary winding on the toroidal core one above the other, wherein this can be done in case of need in each case continuously around the entire ring core circumference. But it is also possible, for example, the inner primary winding helically circulating and then apply a plurality of outer, each helical secondary windings.

The invention also relates to a toroidal core choke, comprising a closed ring core and at least one winding, which has helically wound winding material running around the toroidal core, wherein the cross section of the winding material is based on a power range of the toroidal core choke in the kilowatt to megawatt range is adjusted. With regard to the ring core plane, the winding may preferably extend continuously over the at least predominant portion of the ring core circumference or over the substantially entire ring core circumference.

The invention further relates to a toroidal transformer, comprising a closed ring core and at least one primary winding and secondary winding, of which one or both helically coiled around the toroidal core extending winding material, wherein it is made to ensure that the cross section of the winding material of at least a primary and / or secondary winding is adapted to a power range of the ring transformer in the kilowatt to megawatt range. Expediently, at least one winding having a cross-section adapted to the kilowatt-to-megawatt range with respect to the ring core plane can extend continuously over the at least predominant portion of the ring core circumference or over the substantially entire ring core circumference.

According to a further aspect, the invention relates to a toroidal core choke, comprising a particularly closed toroidal core and at least one winding having helically wound around the toroid winding material, wherein the winding material in a plurality of substantially exactly superimposed layers of winding material to form at least one helically wound Winding strand whose thickness is greater than the thickness of the winding material, in particular whose thickness is an integer multiple of the thickness of the winding material wound. Preferably can be provided as a winding material band material whose cross-sectional width is greater, in particular by at least about an order of magnitude (about a factor of 10) is greater than the cross-sectional thickness. Such a toroidal core choke can be adapted to powers in the kilowatt to megawatt range, even when using a very thin and thus easily processed winding material with respect to the cross section of the winding strand. In particular, there is the possibility that the winding strand has a rectangular, for example. Square cross section whose thickness is in the range of several millimeters to a few or several centimeters.

The invention further comprises a toroidal transformer, comprising a toroidal core choke, in which the winding material is wound in a plurality of substantially exactly superimposed layers to form at least one coiled winding strand whose thickness is greater than the thickness of the winding material, wherein the thread-like coiled winding strand forms the primary winding of the toroidal transformer and wherein the secondary winding comprises a number of winding material having spiral windings which engage around the primary coil and are connected to each other in series. Preferably, a plurality of spiral windings may be provided, which are arranged substantially equidistant from one another over the predominant or substantially entire annular core circumference.

The invention further comprises a toroidal core choke comprising in particular a closed toroidal core and at least one winding having winding material running helically around the toroidal core, wherein according to the invention the winding material is wound up in a plurality of substantially exactly superimposed layers of winding material including insulator intermediate layers wherein a plurality of layers are continuous with each other in series.

The invention further comprises a toroidal transformer, to which in particular also one or more of the above described toroidal transformers are realized, in which according to the invention on each spiral winding of the secondary winding the winding material is wound on a divisible coil carrier made of insulating material with edge-side drive toothing. Alternatively or in combination, there is the possibility that the winding material, preferably round wire material, is wound on one spiral winding of the secondary winding, thereby achieving an approximately triangular spiral winding cross-section that tapers radially outwards.

The invention will be described in more detail below with reference to the accompanying figures, which show preferred embodiments. It shows: 1 is a perspective view of the device according to the invention according to a first preferred embodiment and a wound with winding material toroidal core;

Fig. 2 is a side view in the viewing direction II of Fig. 1;

FIG. 3 shows a side view in the direction of view III according to FIG. 1, wherein FIG. 1 has begun to deviate from the pre-winding;

FIG. 4 shows a side view in the viewing direction IV according to FIG. 2, wherein FIG. 2 has begun to deviate from the pre-winding;

Fig. 5 is a plan view in the viewing direction V of Figure 4, wherein deviating from Figure 4 was begun with the wrapping.

6 is a perspective view of the device according to the invention according to a second preferred embodiment and a winding material to be wound toroidal core during the Vorwickelns.

FIG. 7 shows a side view in the viewing direction VII according to FIG. 6; FIG.

8 is a plan view looking in the direction VIII of FIG. 7.

Fig. 9 in perspective the device shown in Figure 6, at the beginning of the Umwickeins after the implementation of the guide rollers.

FIG. 10 shows a side view in the viewing direction X according to FIG. 9; FIG.

11 is a plan view in the direction XI of FIG. 10;

FIG. 12 shows a side view in the viewing direction XII according to FIG. 9; FIG. Fig. 13 is a plan view in the direction XIII of Figure 12, during the Umwickeins.

14 shows a side view of the device according to the invention according to a further preferred embodiment and a winding core with winding material to be wound around;

Fig. 15 is a plan view in the viewing direction XV of FIG. 14;

FIG. 16 shows a side view in the viewing direction XVI according to FIG. 15, but with a transparent front wall for a simplified illustration; FIG.

17 is a side view in the direction XVII of FIG. 15, but with a simplified representation of the transparent front wall,

18 in a representation analogous to FIG. 17, the device according to the invention according to yet another preferred embodiment,

19 shows in perspective the device according to the invention for winding a toroidal core according to a further preferred embodiment,

20 is a sectional view in section plane XXa - XXa,

20a is a partial enlargement of the detail XXa of FIG. 20,

20b shows an enlarged detail of the detail XXb of FIG. Fig. 21 in perspective the device shown in Fig. 19, but at

Unwinding the winding material from the magazine reel onto the toroidal core,

22 is a sectional view along sectional plane XXII - XXII in Fig. 21,

22a is an enlarged detail of the detail XXIIa of FIG. 22,

FIG. 23 shows a rear view of the device in the viewing direction XXIII according to FIG. 21, FIG.

FIG. 23a shows an enlarged detail of detail XXIIIa from FIG. 23, FIG.

24 in plan view a toroidal core choke according to the invention according to a preferred embodiment,

24a is an enlarged detail of the detail XXIVa of Fig. 24,

25 is a plan view of the toroidal core choke according to the invention according to another preferred embodiment,

26 is a sectional view along sectional plane XXVI - XXVI in Fig. 25,

27 shows in perspective a toroidal transformer according to the invention according to a preferred embodiment, in the course of production,

28 shows in perspective a toroidal transformer according to the invention according to a further preferred embodiment, 29 shows a section through the direction indicated in Fig. 28 cutting plane 29 by a turn of the primary winding,

30 is a partial section of the secondary winding along the cutting plane XXX - XXX of FIG. 28,

Fig. 31a, schematically alternative possibilities for series connection of 31b spiral windings of the secondary winding of an inventive

Toroidal transformer according to FIG. 28,

32 is a perspective view of the device according to the invention in accordance with a further preferred embodiment,

33 is a schematic plan view of a section of the device according to FIG. 32 in the direction of sight XXXIII, FIG.

34 is a perspective view of a pivoting device according to the invention for a magazine winding roller in a preferred embodiment, in a first position of use,

35, the pivoting device shown in Fig. 34, in a second position of use,

Fig. 36a schematically shows several times during the unwinding of 36d winding material periodically occurring from the magazine reel

Operating conditions and

37 is a perspective view of a closed ring core with a clamp or clamping ring attached thereto for clamping the winding material at the beginning of the winding process. 1 shows in perspective a device 1 according to the invention for winding a closed ring core 2 with winding material 3 according to a first preferred embodiment. In the illustrated use state, a closed toroidal core 2 for winding with a winding material 3 is already introduced into the device 1 in the manner described below. The latter has according to the selected embodiment, a magazine winding carrier 4, which is designed as extending over half the circumference Hohltorussegment 5. In the cavity 6 of the closed ring core 2 by means of Ringkernpositioniermitteln 7 concentric, rotatably supported in Umf angs- direction. In order to bring the toroidal core 2 in the position shown, the Hohltorussegment 5 of two ring-segment-shaped half-shells 5 ', 5 "formed along a with a centering edge 8 (and possibly with other, not shown centering) provided parting line 9 connected to each other In order to fix the closure state shown, radially inwardly and externally releasable clamping closures 10 are provided in the region of an end face of the half shells The hollow torus segment 5 can accordingly be opened along the parting line 9 for insertion and removal of toroidal cores 2 For positioning the toroidal core 2, three roller rollers 11 are provided as ring core positioning means 7, the two outer roll rollers 11 of which can be rotated radially and outwardly against a stationary outer roller 12 the device input toroidal 2 swiveled and held in the desired position. To change the position of the intermediate roller roller 11 lying between these, in particular to their change in distance with respect to an imaginary between the outer rollers 11 compound, a self-locking in the selected example adjustment 13 is provided, which is to be operated on a handwheel 14. In suitably adapted to the cross section of a selected ring core 2 position of the rollers, the toroidal core 2 in the ring plane at the same time laterally and perpendicular thereto, ie in the shown example in the vertical direction, aligned and supported. Depending on the ring core profile cross-section, the roller rollers 11 may be adjusted separately with respect to their own profile thereto. In the example shown, the middle roller 11 is coupled to a drive motor 15 (see Fig. 4) to drive the ring core 2 in its circumferential direction, if necessary, by frictional engagement. In the position of use shown, the toroidal core 2 is held so that it passes through the cavity 6 of the magazine winding carrier 4 with its half circumference, wherein in rotary peripheral drive other toroidal core sections are enclosed by the hollow gate segment 5. In the example chosen, but not necessary, the rollers 11 at the same time the importance of Ringkernpositioniermitteln and toroidal drive means. The device 1 has for applying winding material 3 to the toroidal core 2 to a rotatable about a toroidal core cross-docking device 16. As is also clear in connection with the following figures 2 to 5, this has a resiliently supported by means of two parallel compression springs 17 pressure roller 18 for pressing of winding material 3 against the toroidal core 2. The pressure roller 18 is held on a ring gear 19 radially inwardly rotationally locking , The springs 17 are each penetrated by a sliding pin 20, whose one end in each case with the Anpressrol- Ie 18 is in communication and their respective other end longitudinally displaceable by (not graphically illustrated) radial bores on the sprocket run. In the position of use shown, the toroidal core 2 passes through a recess 22 which is provided in a vertical frame wall 21 and opens upwardly for accessibility. In the four corner regions of the frame wall 21 each have pinions 23 which are in engagement with external teeth 24 of ring gear 19 or a Umlaufnut supporting support rollers 23 'which cooperate with a concentric with the teeth 24 guide bead 24', provided so that Sprocket 19 is aligned thereby. The pinion 23 located at the lower edge of the recess 22 is connected by means of an angular gear with a rotary drive 25, which can be seen in FIG. 4, in the example chosen with an electric motor. With- Tels this, the application device 16 can be driven to rotate with the ring gear 19 and the pressure roller 18 to the annular core cross-section in the circumferential direction. In order to bring the toroidal core 2 in the position shown, the sprocket 19 is made split, with the halves of which, if necessary, can be solved or fixed together. The toothed rim 19 and the pressure roller 18 which is spring-supported radially in the radial direction create a winding device by means of which winding material 3 which has been pre-wound on the winding core 4 or hollow-gate segment 5, as can be seen in particular from FIG. 4, wrap around the toroidal core 2 essentially concentrically and thereby can be pressed by means of spring force to the toroidal core 2. For pre-winding of winding material 3 on the magazine winding carrier 4, the device 1 on a feeder 26 which, like the magazine winding carrier 4, the tripods 12, the gear 13 and the frame wall 21 are mounted on a base plate 27. The feed device 26 pulls the winding material 3, which is winding wire in the example, and has a rotary drive 28 (eg, an electric motor) indicated only symbolically in FIG. 3 for this purpose. As illustrated in FIG. 3, the winding material 3 initially passes through two rollers and from there, hidden by the frame wall 21 and therefore shown in dashed lines, to three bending rollers, which are uniformly marked by the reference numeral 29 and in the apparent from FIG. 4 Way are driven by means connected to the rotary drive 28 gear chain. By means of this wire bending device, the winding wire can be bent so that a kind of coil spring is formed, which extends from the end face of the hollow magazine segment 5 serving as a magazine winding carrier 4 and forms the memory there, from which the winding or wrapping onto the toroidal core 2 can be done. An independent sliding of the winding material 3 on the magazine winding carrier is supported by the fact that the position of the bending rollers is adapted to that the winding material is bent as it passes through a Vorwickelradius which is approximately equal to or slightly larger than the radius of the toroidal core cross section. By a not shown in detail diagrammatically inclined position of the bending rollers 29th In addition, it is achieved that the winding material 3 is fed to the hollow gate segment 5 in a direction slightly inclined to the drawing plane, ie containing a component in the direction of the hollow tube.

The operation of the device 1 described with reference to Figures 1 to 5 is as follows: First, a toroidal core 2 is input to the device 1 in the manner described and aligned therein with respect to the hollow magazine winding carrier 4 in a Ringkernpositionierebene and rotatably supported. In addition, the toroidal core 2 can also be mounted in the hollow-torn segment 5. Subsequently, the winding material 3 is drawn by means of the feeder 26 and pre-bent by means of the bending rollers 29 realized by the bending device in the manner already described, the serving as a magazine winding carrier 4 Hohltorussegment 5 supplied from one end face in a slightly oblique direction and thereby on the magazine winding carrier cross-section as to this rotating screw or helical winding pushed. The pre-winding, ie the refilling of the magazine, can take as long as one for the subsequent winding on the toroidal core 2 sufficient stock of length is wound as a magazine winding 36 on the magazine reel carrier 4 helically. In the exemplary embodiment shown, the half-shells 5 ¹ and 5 "on their other, opposite, end of the magazine end in the region of the clamping closures 10 on the outside radial projections 30, which serve on the one hand for reinforcement and on the other hand as a stop for the helically pre-wound winding material 3 the pre-winding of the winding wire 3 by means of the application device 16 with the pressure roller 18 and the ring gear 19 comprehensive winding device on the toroidal core 2 directly off or be wrapped, this starting with the rear, ie the application device 16 facing the free end of the magazine reel This free end can be formed manually or automatically by severing the winding material 3 in the region behind the feed device 26 and clamped between the pressure roller 28 and the toroidal core 2. Starting with this free end, the winding material 3 is pressed by the pressure roller 18 against the ring core 2 and the application device 16 with pressure roller 18 in a desired direction of rotation D, which is visible through the outbreak in Fig. 4, rotated around the toroidal core cross-section. The speed with which the winding material 3 is withdrawn from the hollow gate segment 5 is determined, in particular, by the diameter ratio between magazine winding carrier 4 and ring core 2, by the rotational speed of the application device 16 and by the rotational speed R of the ring core 2 in the direction of rotation R (cf. Fig. 5) influenced. In view of the deviating cross-sectional circumferences of magazine winding carrier 4 and toroidal core 2, the magazine winding during unwinding or wrapping can perform a rotation about the (curved) winding axis either independently or, for example, with motor support. Depending on the mentioned diameter ratio can be applied with the semi-circumference pre-wound length stock on the toroidal core 2 over its entire circumference reaching or possibly even multi-layer winding. In order to adapt the position of the roller rollers 11 to the enlarged by the winding 31 on the ring core 2 cross-section, these can be supported, for example in a manner not shown resiliently against the ring core 2.

In the manner described can be with the device 1 z. B. initially a primary winding, which preferably has a few windings with a thick cross-section, and then outside about z. B. a secondary winding, which preferably has a larger number of turns with less thick cross-section, each applied from a continuous conductor. Specifically, this can also be done for the production of large transformers with a closed ring core and winding material of a correspondingly large and rigid cross-section.

FIGS. 6 to 13 relate to the device 1 according to the invention in accordance with a second preferred embodiment, wherein ing features are denoted by the same reference numerals. Fig. 6 shows in perspective the device 1 and a closed ring core 2, which is to be wrapped with a winding material 3 spirally pre-wound on a magazine winding carrier 4 of the device, in the selected example a strip with a flat cross section. The magazine winding carrier 4 has, in this selected embodiment, a plurality of arranged on a roller ring guide rollers 32 which are rotatably mounted on journals 33. The guide rollers 32 are on a frame wall 34 in total annular, each held in the radial direction variable by the axle 33 each one in the frame wall 34 radially oriented longitudinal groove 35 passes and in the desired radial position by means of suitable (in the viewing direction of Fig. 6 behind the frame lying Clamping means, for example. With a screwed onto a threaded end 47 of the journal 33 clamping nut 48) can be detected. It becomes clear that the guide rollers 32 of the magazine winding carrier 4, which is also designed in several parts in this embodiment, have lateral guide walls. In the example chosen here, their spacing corresponds approximately to the width of the ribbon-like winding material 3. Accordingly, the winding material 3 after insertion of the closed ring core 2 in the device 1, as shown in Fig. 6 on the magazine winding carrier 4 spiraling to a magazine winding 36 pre-wound with sufficient for the desired application length stock. It becomes clear that the circumference of the magazine winding carrier 4 serving for the radial support and in the example shown in FIG. 6 for the lateral support or guiding of the magazine reel 36 also consists of several parts of the guide rollers 32 spaced apart from each other and thereby in the circumferential direction at the interspaces of the guide rollers 32 Guide rollers 32 is open, so that a toroidal core 2 to be wound can be positioned in the position shown before the pre-winding. In order to hold the toroidal core 2 in the horizontal toroidal core positioning plane selected in FIG. 6, three roll rollers 11, which are shown schematically for simplicity, are provided as ring core positioning means 7 in construction and function but with reference to FIG Figures 1 to 5 described Ringkernpositioniermittel 7 correspond. Furthermore, a plummer bearing 37 is provided, from the bearing shell of which for insertion or removal of a closed toroidal core 2 a segment 38 can be removed or subsequently reinserted and fastened. The pedestal bearing 37 has a frontally projecting, also by removing the segment 38 separable sleeve 49, which surrounds an inserted toroidal core 2 with sufficient radial distance for the intended winding and on which the outside of the applicator 16 is rotatably mounted. The pedestal bearing 37 is like the frame wall 34 mounted on a base plate 27 and can be adapted to different geometric requirements or replaced. In order to use the closed ring core 2 sideways through the space between two guide rollers 32 through, in the frame wall 34, a cutout 39 open at the edge is introduced. Analogously, as an alternative to the illustrated embodiment of the pillow block bearing 37, it may also be partially open at the periphery in the upper enclosing area in order to bring the toroidal core 2 into the position required for the desired positioning without first unfolding or removing a circumferential segment. To accommodate the annular profile cross-section of the closed ring core 2 and the windings to be applied thereto, the multi-part magazine winding carrier device 4 surrounds in its cross section which intersects said annular core positioning plane, a cavity 6 which is partially open at the edge in the circumferential direction between the guide rollers 32. The magazine reel 36 already pre-wound in the operating state according to FIG. 6 forms an inner hollow cross-section 6 ^{1, which is} larger by a multiple compared to the toroidal cross-section, and encloses therein a narrow section of the closed toroidal core 2. In addition, the device 1 shown in FIG for applying pre-wound winding material 3 to the ring core 2 a rotatable about the annular core cross-section application device 16, whose structure and function will be described on. In the example, the ring core positioning means 7 analogous to the embodiment of FIGS. 1 to 5 also serve as toroidal drive means with which NEN, a rotary drive of the toroidal core 2 in the circumferential direction is possible. These toroidal core drive means, which are only shown in detail, are designed analogously to the roll rollers 11 (see also FIGS. 1 to 3) described in connection with the first preferred exemplary embodiment, of which the middle one has a drive. Figures 7 and 8 show the situation described in Fig. 6 in a frontal side view and in a plan view.

FIG. 9 illustrates a later operating state or method step with regard to the device 1 shown in FIG. At this time, during the Vorwickelvorganges still radially within the magazine reel 36 distributed annular guide rollers 32 are already gradually detached individually with its journal 33 from the frame wall 34 and then attached to the respective same longitudinal groove 35 from radially outside again against the magazine reel 36. This can be done in the manner (not shown in the drawings) in such a way that the journal 33 is first released from a threaded end 47 only by a guide roller 32, for example by turning off a clamping screw 48 behind the frame wall 34 in the viewing direction of FIG is pulled out of the longitudinal groove 35, then inserted radially outside again in the same longitudinal groove 35, pushed therein from radially outward against the magazine winding 36 and secured with the clamping screw 47 again. If this transfer stepwise individually or at least only in limited groups of guide rollers, the magazine reel 36 is held in the meantime by the remaining guide rollers of the magazine reel carrier 4. The conversion of the guide rollers 32 has the advantage that now the winding material 3 can be unwound as required from the inside of the magazine reel 36 radially inwards and can be wound or wound onto the toroidal core 2. With regard to the different cross-sections or circumferences of toroidal core 2 and magazine winding carrier 4, the magazine reel 36 can independently or for example be motor-assisted during the unwinding or wrapping of the winding material 3 onto the toroidal core 2 about its winding axis. speed, which is facilitated by the support on the rotatable guide rollers 32. In the context of the invention, in principle, ie independently of the specific embodiment, it is also possible to dispense with an additional drive of the application device in the case of a magazine reel driven during winding with a correspondingly demand-oriented speed. The situation shown in perspective in FIG. 9 is shown in FIGS. 10 and 11 in a frontal side view and a top view.

FIG. 12 shows the same situation in the viewing direction XII of FIG. 9, ie in a direction opposite to that of FIG. 10, with the frame wall 34 being shown transparent for simpler representation, as indicated by the dash-and-dot line. It is thus clear that the winding material 3 unwound from the radial inner side of the magazine reel 36 is pressed against the cross section of the toroidal core 2 by a contact roller 18 of the application device 16, while the application device 16 generates a winding on the toroidal core 2 in the direction indicated by the arrow Direction is driven in rotation. The pressure by the pressure roller 18 can be either adjustable rigid or, for example, resilient, by means of pneumatic (eg gas pressure spring) or hydraulic pressure medium. The application device 16 is itself formed as a rotational body, which has a passage opening 41 for enclosing a toroidal core section. This rotary body is designed in two parts with a parting line 42, so that the halves can be separated or unfolded for inserting a toroidal core 2 and then closed again and secured to each other by means of suitable fastening elements 43. Fig. 12 illustrates that the winding material 3 is rewound from the magazine reel 36 with respect to the imaginary central axis radially inwardly with continuous reduction of the winding radius on the toroidal core 2. For example, in the direction of the arrow shown in FIG. 12, an unillustrated motor (eg, electric motor) attached to the pillow block bearing 37 can serve for the rotational drive of the application device 16. through the addressed toroidal drive means, the toroidal core 2, z. B. as indicated by the arrow direction in Fig. 13, are rotated in the circumferential direction thereof. Depending on a desired coordination between the rotational speeds of application device 16 and toroidal core 2, as shown in the top view in FIG. 13, a helically wound winding 31 with a pitch depending on these drive conditions can be applied to the toroidal core 2. In the embodiment shown in FIGS. 6 to 13, the application device 16 is rotatably mounted on a sleeve protruding from the pedestal bearing 37; alternatively, with a correspondingly reduced internal opening, a reception directly on the ring core 2 would be conceivable.

FIGS. 14 to 17 show an embodiment of the device 1 according to the invention that is substantially functionally identical to the embodiment described with reference to FIGS. 6 to 13. In this case, the front plate is shown in the viewing direction using the same reference numbers to simplify FIGS. 16 and 17 (indicated by the dash-dot border) shown transparent. In the opposite viewing direction, FIGS. 16 and 17 also differ in that the guide rollers 32 in FIG. 16 are already attached from radially inward and in FIG. 17 already from radially outside against the magazine reel 36. The pre-winding to the magazine winding 36, which is initially supported radially from the inside, can be carried out in a manner familiar to the person skilled in the art. In the embodiment shown in FIGS. 14 to 17, provision is made for the application device 16, which rotates about the ring core 2, to have a round passage opening 41 which is open towards one side as a rotation body. On a pillow block wall 44, the frame wall 34 zuweisend, distributed in a ring-like manner and thereby adapted to the outer contour of the applicator 16 a plurality of support rollers 45 rotatably mounted. These are motor-driven (in a manner not shown in the drawings) in order preferably to drive the application device 16 in the direction of the rotary arrow by frictional engagement. As in the embodiment described above, the winding material 3 pressed against the annular core 2 by a pressing roller 18 rotating about the annular core cross-section at the application device 16 to produce a desired winding. Instead of the pressure roller 18 and presses or a pulling mechanism could be provided.

Fig. 18 shows a frontal side view of another preferred embodiment of the device 1 according to the invention, which is largely identical to the construction and function described above. The difference is that 18 three bending rollers 46 are provided on the applying device 16 instead of a pressure roller. With these, the winding material 3 unwound from the inside of the magazine reel 36 is pre-bent while passing through in such a way that it bears against the toroidal core 2. In the preferred embodiments described with reference to Figs. 14 to 18, although not shown diagrammatically therein, analogous ring core positioning means are also provided in the foregoing embodiments in the form of three roller rolls, the middle of which has a rotary drive.

19 shows in perspective a device 1 according to the invention for teaching a toroidal core 2 with winding material 3 according to a further preferred embodiment, corresponding to the preceding embodiments corresponding or equivalent elements with corresponding reference numerals. The toroidal core 2 is aligned above a bracket 50 by means of three roll rollers 11 serving as toroidal core positioning means 7 in the ring core positioning plane and rotationally driven in its circumferential direction. On a holding frame 51, a plurality of guide rollers 32 are arranged like a ring to form the magazine winding carrier 4, wherein the thereby spanned magazine winding plane is perpendicular to the ring core plane in the rooms. Fig. 19 shows the device when winding winding material 3 on the magazine winding carrier 4 for producing a magazine roll 36 which engages around a cross section of the toroidal core 2. For this purpose, in the Example supply means 52 is provided, which serves for the active supply of the winding material in the radially outer peripheral position of the spiral magazine roll. In the device 52 is a 3-roll chair, in which at least one of the three rollers 53 is driven in a manner not shown by means of the electric motor 54 for driving the winding material 3. The rollers 53 are arranged relative to one another such that the strip material selected in the example is plastically pre-bent when passing through two nips with a desired curvature and is frictionally driven in this way. FIG. 20 relates to a sectional view along a sectional plane running behind the console 50. FIG. The winding of the winding material 3 is done so that the formed magazine roll 36 is immediately within the guide rollers 32. In order to allow the guide rollers 32 to deflect radially outward in the event of a radial growth of the magazine reel, the guide rollers 32 on the magazine reel carrier 4 are held longitudinally displaceable in the winding radial direction by means of radial grooves 55 (see FIG. In order to achieve an adequate support of the magazine reel 36, drawing means are not present on the guide rollers 32 with the illustrated means for producing a spring force acting radially inward on the guide rollers. It is further provided that the guide rollers 32 can each be rotationally driven by an electric motor 56, which can be actively supported in case of need, the winding and / or the unwinding of the magazine reel. The electric motors 56 are connected to means (not shown in the drawing) for controlling and / or regulating the temporal drive speed course.

Fig. 21 shows in perspective the device 1 shown in Fig. 19 after the pre-winding of the magazine roll 36, which has already begun with the wrapping of winding material 3 on the toroidal core 2. FIG. 22 again shows a sectional view and FIG. 23 a corresponding rear view. In order to wrap the winding material 3 around the toroidal core 2, an in their basic function of the embodiment shown in Fig. 12 comparable application device 16 is provided. This has a rotary body 57, which surrounds with its center opening 58 a cross section of the toroidal core 2. In order to place the rotary body 57 in the manner shown around the toroidal core 2, a screwed circumferential segment 57 'can first be released and reapplied after the desired positioning. Said center opening 58 is dimensioned such that a radial distance, suitable for receiving the windings to be produced, remains between the rotary body 57 and the toroidal core cross section. The rotary body 57 is rotatably supported in the position shown by means of a plurality of support elements 60 distributed along the circumference. For the rotary drive of the rotary body 57, this has on the outside a toothing 59 (compare Fig. 22a), which is in engagement with a driven by an electric Anlegeeinrichtungsantriebs 61 pinion 70. A pressing roller 18 (FIG. 23a), which can be pivoted within the plane of rotation to the cross section of the ring core 2, is provided on the rotary body 57. Specifically, the pressure roller 18 is eccentrically mounted on the rotary body 57 held pivot axis 62, wherein the pivot lever is in the direction of Fig. 22a behind the rotary body 57. On the rotary body 57, a pneumatic cylinder 64 is pivotally mounted about a further pivot point 63, the pneumatic piston 65 is held at its free end to an eccentric disc 66, so that the pressure roller 18 is eccentrically pressurized to the pivot axis 62. The pneumatic cylinder 64 has a in Fig. 22a indicated check valve 67, to which a pneumatic supply line for filling and possibly a derivative for discharging compressed air can be connected.

The contact pressure roller 18 moves with the rotary body 57 in the direction of rotation indicated about the cross section of the toroidal core 2, which is also encompassed by the magazine reel 36, thereby pressing the of the innermost spiral wrap of the magazine wickeis 36 removed winding material 3 pneumatically against the cross section of the toroidal core 2 at. During the rotation of the pressure roller occurs due to the geometric conditions depending on the angular or phase position to form an ang of the Wickelinnenumf to the toroidal core 2 extending supply arc 68 of time-varying length and curvature. If the guide rollers 32 (which are indicated by dashed lines in FIG. 23) are freely rotatably arranged, the magazine reel 36 can independently perform rotational movements for compensation. In the embodiment shown, in which the guide rollers 32 are actively driven, the compensation movement of the magazine reel 36 can be actively supported by means of a control and / or regulation. While the winding material is wound around the cross section of the toroidal core 2 in the described manner, the toroidal core 2 is rotationally driven in the circumferential direction thereof, so that the winding material 3 is coiled wound like a thread. In the manner already described, there is the possibility that the thread-like helix extends continuously over the entire circumference of the ring core 2 and that one or more further layers of winding material are wound onto a thread-like coiled layer in further circulations of the ring core 2, at least substantially accurately.

Fig. 24 shows in plan view a toroidal core choke 71 according to the invention according to a preferred embodiment, which was prepared in the manner previously described. This has a closed in the example toroidal core 2 with a winding 72 which spirally wound around the ring core 2 duri fering winding material 3 has. The peculiarity lies in the fact that the winding material 3 is wound up in a plurality of substantially exactly superimposed layers to form a thread-like coiled winding strand 73 whose thickness is a multiple of the thickness of the winding material 3. For the production, an insulating guide belt 74 was initially wound onto the toroidal core 2 with radially outward edges protruding along both edges. henden guide aids 75, in the selected example rod-zapf enartigen guide nubs, through which, in addition to a suitable adjustment of the rotational speeds of the ring core 2 and applying device 16, has come to the desired precise alignment. Starting from the production step shown in FIG. 24, the winding strand 73 can be separated and the ends formed can be connected to electrical connection terminals.

FIG. 25 shows a toroidal core choke 71 according to the invention in accordance with a further preferred embodiment. The difference to the variant shown in Fig. 24 is that in the production of the guide band 74, the ring core 2 was first encased with a circumferentially divisible hollow gate 76, projecting from the outer sheath guide 75. These are arranged in the section of FIG. 26 at the respective upper and lower apex of the hollow gate 26 (even if only the upper guide aids 75 can be seen in the cut guide).

Fig. 27 shows in perspective a toroidal transformer 79 according to the invention in a preferred embodiment. This comprises a ring core 2 with a circumferentially extending thread-like coiled winding strand 73, which was formed in the manner described above from a plurality of precisely superimposed layers of winding material 3. The winding strand 73 represents the primary winding of the toroidal transformer 79. The secondary winding is formed from a number of winding material 3 having spiral windings 77, which surround the primary winding and are spaced over the circumference of the ring core 2 away. In the selected illustration, only part of the spiral windings 77 are shown, while the remaining spiral windings are still attached in the course of further manufacture, after which the spiral windings are connected to each other to form the secondary winding in series. The spiral windings 77 can are also made with the device selected for the production of the primary winding, if the ring core 2 is not rotationally driven or only between the production of individual spiral windings.

Fig. 28 shows in perspective a toroidal transformer according to the invention

79 according to another preferred embodiment. This has a closed in the example toroidal core 2, on which a primary winding 72 is coiled coiled wound. In order to produce the winding 72, the winding material 3 was wound up in several layers 78, which wound around the toroidal core 2 in a manner that wound over the toroidal core 2 in an essentially fitting manner. FIG. 29 illustrates in sectional view that between the electrically conductive layers 78 of winding material 3 insulator spacers 80 (not shown in FIG. 28 for simplicity) are included. In the example chosen, the winding material 3 is already provided with an adherent layer 80 on its underside so that an insulator intermediate layer also exists between the innermost layer 78 and the ring core 2 during winding

80 was included. In the embodiment chosen in FIG. 28, the primary winding 72 has twenty turns of four electrically isolated layers 78, so that the effective number of windings is 80. In the selected example, the strip material selected for the primary winding has a cross-sectional width of 20 mm and a cross-sectional thickness of 5.5 mm and consists, for example, of aluminum or an aluminum alloy. Fig. 28 also shows that the starting portion 81 and the end portion 82 of the winding 72 are formed on adjacent turns and by kinking the end pieces. As an alternative to the embodiment shown in FIG. 28, for example, it would also be possible to wind up the primary winding 72 with forty threads, in each case two precisely superimposed layers 78, onto the ring core 2 in order to obtain 80 electrically effective turns. The winding material may here, for example, have a cross-sectional width of 12 mm and a cross-sectional thickness of 6 mm and consist of copper or a copper alloy. The ring core 2 shown in FIG. 28 has only Example, an inner diameter of 200 mm, an outer diameter of 400 mm, ie a cross-sectional diameter of 100 mm, on example. The secondary winding of the toroidal-core transformer 79 shown in FIG. 28 is formed by six spiral windings 77 connected in series, the connections between the windings 77 and the beginning and end of the secondary winding not being shown in simplified form (cf. FIGS. 31 a, 31 b). , Fig. 30 schematically illustrates that the substantially triangular cross section of the spiral winding 77 is wound on a (separable) coil carrier 83 made of insulating material. In the example chosen, a round wire of copper with a cross-sectional diameter of 1.2 mm was used as the winding material, with each spiral winding 77 being made up of 913 turns, so that a total number of turns for the secondary winding is 5478. At the cross-sectional edges, the bobbin 83 has end walls 84 with toothings 85 lying on the outside of the outside and indicated in FIG. 30. This makes it possible to drive the bobbin for winding the round wire in the desired direction of rotation (left or right-handed rotation) in particular in the manner described in the disclosure DE 2929206 Al rotation. The content of this disclosure is included in the present application, also for the purpose of being able to include features from this disclosure in claims. In the context of the invention, the secondary winding can be introduced in many ways in the toroidal transformer. In isolation transformers, where the primary and secondary coils differ little, the secondary winding can be applied using the same winding device as the primary winding. When it comes to transformation transformers, there are several possibilities. Preferably, here the secondary coil can be produced as a plurality of spirally wound individual coils distributed over the circumference of the toroidal core, ie spiral windings, which can then be connected in series or in parallel as required. They can preferably be wound directly rotatable, for which purpose the winding machine or technology described in the disclosure DE 2929206 A1 serve can. For this purpose, the split coil carrier 83 is used, which is applied before winding over the primary coil of the toroidal transformer 79 and the two halves are then fixed against each other. Sufficient free space must remain between the primary winding and the coil support 83 in order to be able to carry out the winding operation by means of a drive which simultaneously positions the spiral winding 77. This drive is in meshing engagement with the teeth 85 on the end walls 84 of the bobbin 83. Alternatively, other techniques can be used for the preparation of the spiral windings 77.

31a and 31b show in a schematic development of the circumference of the toroidal core (not shown) in each case half-side the cross section of the spiral windings 77 of the ring core transformer 79 shown in Fig. 28 (wherein the triangular coil cross section in Fig. 31a is shown schematically simplified as a rectangle ). For each spiral winding 77, the beginning with A and the end with E are designated without representation of the intermediate windings. Fig. 31a relates to an embodiment in which the spiral windings 77 have been wound in the same direction of rotation. To achieve a uniform current flow direction, the respectively radially outer end E has been connected to the radially inner beginning A of the following winding 77 for the series connection of the spiral windings 77. FIG. 31 b relates to an embodiment in which adjacent spiral windings 77 have been wound in the opposite direction of rotation at the toroidal core circumference. In order to achieve a uniform current flow direction in the series connection alternately at the cross sections radially outer pairs of end E and beginning A and radially inner pairs of end E and beginning A were connected.

Fig. 32 shows in perspective the device 1 according to the invention according to a further preferred embodiment. Therein, embodiments described above are equivalent or equivalent elements. te for clarity with the same reference numerals. A first development with respect to the embodiment described with reference to FIGS. 19 and 21 is that the toroidal positioning table 86, whose surface extends parallel to the toroidal core positioning plane and which carries three roller rollers serving as toroidal core positioning means 7, in the marked, mutually perpendicular traversing directions X and Y by means of drawing not reproduced actuators relative to the console 50 for position change is movable. In addition, it is possible to move the roller 11 (without index) along the center line 87 (see Fig. 33) in the direction W for changing the position by means of an actuator (likewise not shown). It is clear from FIG. 32 that the application device 16 with the rotation body 57 and the pressure roller 18 is held stationary on the frame 51 of the magazine winding carrier 4, so that the roller rollers supported by the roller rollers designated for their distinction with 11, 11 'and 11, Ring core 2 performs a relative movement with respect to the applying device 16 when the ring core positioning table 86 is displaced. Fig. 33, whose viewing direction is directed perpendicularly to the ring core positioning plane, shows a setting in which the annular core winding plane 88, in which the pressure roller 18 for applying the winding material 3 is moved about the toroidal cross-section by the distance A parallel to the center line 87 of the toroidal core 2 has been set to match the desired pitch of the helically wound winding course lying electric motor connected to the rotary drive and transmits a The toroidal core drive means 89 applies torque to the ring core 2 in order to rotate the ring core 2 in the direction of its circumference.

Another difference between the device 1 shown in Fig. 32 is that there is a Magazinwickelandruckrolle 90 by means of a closer in Figs. 34 and 35 pivoting device 91 shown pneumatically in the plane spanned by the magazine winding 36 level and therein from radially inward can pivot the magazine reel (or vice versa), whereby the magazine reel 36 is pressed against the driven by a motor 56 'guide roller 32'. 34, 35, it is clear that the pivoting device 91 has a first pneumatic adjusting element 92 for pivoting the Magazinwickelandruckrolle 90 out of the plane of the magazine reel 36 and a second pneumatic actuator element 93 for pivoting on and off of the magazine inner circumference. In the example, pneumatic actuators are respectively provided as first and second position element 92, 93. The second adjusting element 93 engages via a tab 94 on a guided in longitudinal bearings 95 base plate 96. This carries two vertical bearings 97, at which one connected to the first actuator 92 and the roller 90 supporting the holding plate 98 is movably held. In view of the improved by the Magazinwickelandruckrolle 90 force or torque transmission of the guide roller 32 ', this has a larger compared to the motors 56 of the remaining rollers 32 electric motor 56'. Depending on the application or requirement, the smaller motors 56 can alternatively also be completely dispensed with.

The operation and a preferred method using the device 1 described with reference to Fig. 32 will be explained below. In the selected embodiment, the (not shown) actuators for moving the Ringkernpositioniertischs 86 in the directions X and Y, the (not shown) actuator for position adjustment of the roller 11 in the direction of W, the motor 54, the motor 56 ', the Motor 61, the (not shown in the drawing) motor for driving the roll of rollers 11 '(toroidal core drive means 89) and the first and second pneumatic control elements 92, 93 connected to the respective control with a (not shown) programmable logic controller (SFS). The start of the workflow can be done manually. The toroidal core 2 is first introduced into the holder formed by the three roller rollers 11, 11 ', 11 ", which can be done with a crane, depending on the size and weight of the toroidal core 2. The rear roller 11 then moves in the direction W onto the roller conveyor. The ring core 2 is then moved by means of the ring core positioning table 86 in the direction of the magazine winding carrier 4 (direction X) which is partially open at the circumference, in the direction of the circumference Table 86, which, like console 50 in FIG. 32, is shown dashed or transparent for ease of overview, has a recess between roller rollers 11 ', 11 ", and the segment 57' which can be detached from rotary body 57 is temporarily removed , so that the movement of movement of the table 86 with the toroidal core 2 into the position shown in FIG. 32 is possible. It is understood that the magazine reel 36 already shown in Fig. 32 is not yet present at this time. On the basis of this, an inner support and conductor coupling ring (not shown in FIG. 32) can be inserted between the guide rollers 32, 32 'and held thereby. The winding material 3 fed thereafter to the magazine winding carrier 4 can be threaded into the feeding device 52 and advanced by means of the motor 54 or manually up to the conductor coupling ring for fixing thereto. Then, the magazine reel 36 can be wound with the active drive of the incoming winding material 3 by the motor 54 until the required winding length is reached. Then the shearing takes place at the inlet, whereby the state shown in Fig. 32 has been reached. Then, as required, an outer support ring (not shown) may be manually mounted on the circumference of the conductor ring and the inner support ring removed. The winding material 3 is withdrawn from the magazine reel 36 from the inside and fixed to the ring core 2 in the winding direction at the beginning in a in Fig. 37 in detail a clamping band 99 and a clamp 100 having clamping device at the Bewicklungsanfangsposition. The clamping band 99 is positively inserted with its bead-like ends in grooves on a respective clamping half of the clamp 100. By inserting a right-angled bent end of the winding material into a groove surrounded by the clamping halves and reducing the spacing of the clamping halves by means of a clamping screw held thereon, the clamping band 99 is at the same time clamps and the winding material 3 clamped in place. To start the Bewickelungsvorganges (see also Fig. 33), it is possible to turn on the automatic mode of the PLC. The controller causes the servo roller driven roller roller 11 'to start rotating and the motor 61 for driving the applying means (rotation of the pressure roller 18) to follow synchronously at a suitable speed. If the winding 72 (see Fig. 33) reaches the roll of rollers 11, it is moved outward in the direction W in order to keep the pressure constant by the distance corresponding to the thickness of the winding material 3. In order not to displace the center of the ring core 2 too much, the ring core positioning table 86 is displaced when the rigid pinch rollers 11 'and 11 "are reached .. This can be done by moving in the X and / or Y direction, depending on the need or position of the rollers. The magazine reel 36 is not shown for clarity in Fig. 33. When the reel 72 reaches the driven reel roller 11 ', thereby changing the ring core circumference, ie, the gear ratio, the PLC shifts to a new drive speed of the servo drive with which the Rolling roll 11 'is driven as toroidal core drive means 89. This can be done, for example, by positional evaluation by evaluating the servo steps During the winding onto the ring core 2, the supply of winding material 3 from the magazine reel 36 via the described magazine drive is dependent on the changing position of the pressure roller 18 of the application device 16 realized. In this case, the drive 56 'drives the magazine reel 36 synchronously with the winding speed of the ring core 2, the directions of rotation of the magazine winder 36 and the pressure roller 18 being indicated by arrows. If, in this case, a preselected position of the pressure roller 18 is indicated by way of example in FIG. 36d, the magazine roller pressure roller 90 is pressed into the magazine winding plane by means of the pivoting device 91 and radially against the magazine winding 36 and thereby against the driven guide roller 32 '. It is possible that the SPS in the pressed-on state of the roller 90, the magazine winding 36 by means of the motor 56 'with increased ter speed continues to drive. When the winding material 3 or the supply sheet 68 is pulled through the hollow space of the ring core 2 forming a constriction (compare Fig. 36b), the roller 90 can be pivoted back from the magazine reel and moved out of the magazine winding plane, which in Fig. 36c the non-hatched representation is indicated. The drive 56 'can slow down again or continue to run at the same speed, and the winding material 3 can be pulled off the magazine reel again. The pressure roller 18 has, according to the pivotal roller 90 so far unobstructed passage through the toroidal core 2, and congestion and irreversible Leiterbiegungen be effectively avoided. To further ensure the sequence, the passage through the winding material could be detected with a proximity sensor at a relevant point and the signal used to drive the drive 56 'and the control elements 92, 93 are used. The cycle illustrated by way of example in the sequence of FIGS. 36a to 36d is repeated with each further turn until the desired winding on the toroidal core 2 has been achieved. The winding material 3 can then be separated in the inlet for winding and the application device 16 can be opened by removing the segment 57 'and the controller can be switched to manual operation. The retraction of the wound toroidal core 2 can take place with the drive of the table 86 and then the roll of rollers 11 are driven up, whereupon the wound toroidal core 2 can be removed again, for example, with a crane from the device 1.

All disclosed features are essential to the invention. In the disclosure of the application, the disclosure content of the associated / attached priority documents (copy of the prior application) is hereby also incorporated in full, also for the purpose of including features of these documents in claims of the present application.

Claims

1. An apparatus for winding a particular closed ring core with winding material, such as metallic wire or strip, in particular for the production of chokes or transformers for the kilowatt-up

A megawatt range, wherein the device has at least one magazine winding support for pre-winding and then wrapping the winding material on a toroidal core, characterized in that the magazine winding carrier (4) in its cross section, the sires a toroidal positioning plane of the device (1) for receiving a Ring profile cross-section of a in the device (1) wound toroidal core (2) surrounds a cavity (6) and in the circumferential direction is partially open or obvious.

2. Device according to claim 1 or in particular according thereto, characterized in that Ringkernpositioniermittel (7) are provided adapted thereto so that a toroidal core (2) is positionable such that it passes through the cavity (6) of the magazine winding carrier (4).

3. Device according to one or more of the preceding claims or in particular according thereto, characterized in that toroidal drive means are provided, whereby a toroidal core (2) is rotationally driven in the circumferential direction, wherein the toroidal drive means in particular three in the ring plane of the toroidal core (2) distributed in a triangular arrangement - have ordered roles or pairs of roles.

4. Device according to one or more of the preceding claims or in particular according thereto, characterized in that for applying the winding material (3) to the toroidal core (2) is provided around a toroidal cross-section rotatable contact means (16).

5. Device according to one or more of the preceding claims or in particular according thereto, characterized in that the applying device (16) has at least one, in particular resilient or by means of pneumatic or hydraulic pressure medium supported, pressure roller (18).

6. Device according to one or more of the preceding claims or in particular according thereto, characterized in that the application device comprises a plurality, in particular three, bending rollers (29, 46).

7. The device according to one or more of the preceding claims or in particular according thereto, characterized in that the magazine winding carrier (4) is formed as in particular over about half the circumference extending hollow gate segment (5), whose core sheathing relative borrowed lying transversely to the circumferential direction cross-section is open or partially open.

8. Device according to one or more of the preceding claims or in particular according thereto, characterized in that the Hohltorus- segment (5) has two ring-segment-shaped half-shells (5 ¹ , 5 "), which in particular parallel to the ring plane or parallel to its parting line ( 9) are connectable or detachable.

9. Device according to one or more of the preceding claims or in particular according thereto, characterized in that a feed device (26) for winding material (3) to the Hohltorussegment (5) is present, which has bending rollers (29) whose position to a pre-bending of Winding material (3) to a Vorwickelradius on the Hohltorus (5) about the same size or slightly larger Vorbiegeradius are adaptable.

10. Device according to one or more of the preceding claims or in particular according thereto, characterized in that the feed device (26) to a supply of winding material (3) to the hollow door segment (5) in a direction which a component in Hohltorus- circumferential direction contains, is adjusted.

11. The device according to one or more of the preceding claims or in particular according thereto, characterized in that the magazine winding carrier (4) a plurality of annularly distributed guide elements arranged, in particular a plurality arranged to a roller ring guide rollers

(32), wherein the radial position of the guide elements by means of releasable holders, in particular by means of radially oriented slots of a holding surface after release slidable holders, is variable.

12. The device according to one or more of the preceding claims or in particular according thereto, characterized in that the applying device (16) has a rotational body, which for gripping a toroidal core portion has a passage opening (41), wherein the passage opening (41) surrounding the opening axis Cross-section either divisible or the passage opening (41) partially, in particular half-sided, is open.

13. The device according to one or more of the preceding claims or in particular according thereto, characterized in that the rotary body (57) by means of a Anlegeeinrichtungsantriebs (61) is rotatably driven around the toroidal core and around that on the rotary body (57) at least one pneumatically within the plane of rotation Toroidal cross-section pivotable pressure roller (18) is provided.

14. The device according to one or more of the preceding claims or in particular according thereto, characterized in that the pressure roller (18) on the rotary body (57) on a pivot axis (62) is mounted eccentrically and that the pressure roller (18) by means of a particular eccentric on the pivot axis (62) acting pneumatic cylinder

(64) or piston (65) is pivotable, wherein the pneumatic cylinder (64) for pressure storage has a check valve (67).

15. Device according to one or more of the preceding claims or in particular according thereto, characterized in that one or more of the guide rollers (32) of the magazine reel carrier (4) with a guide roller drive (56) to support the up and / or unwinding of the magazine reel (36 ) are coupled.

16. Device according to one or more of the preceding claims or in particular according thereto, characterized in that means for controlling, in particular for program control as a programmable logic controller (PLC), and / or for controlling the Anlegeeinrich- tungsantriebs (61) and / or the guide roller drive (56) are provided, suitable for achieving a desired, in particular temporally variable, ratio of the speeds of Anlegeeinrich- tion and guide roller drives.

17. The device according to one or more of the preceding claims or in particular according thereto, characterized in that the axes of rotation of the guide rollers (32) on the magazine winding carrier (4) are longitudinally displaceable in the winding radial direction, in particular means for generating a spring-like force are present, with the Guide rollers (32) are acted upon radially inward acting.

18. Device according to one or more of the preceding claims or in particular according thereto, characterized in that a feed device (52) for supplying winding material (3) to the magazine winding carrier (4) is provided, comprising at least three rollers (53), of which at least one is connected to a rotary drive (54), wherein the rollers (53) are arranged to each other, that the winding material (3) runs to form a curvature by two of the rollers (53) formed nips and pressed against the driven roller (53) becomes.

19. Device according to one or more of the preceding claims or in particular according thereto, characterized in that at least three roll rollers (11, 11 ', 11 ") are provided as Ringkernpo- positioning means (7), which by its spaced position geometrically a ring core posi- tioning plane span and in particular at a Ringkernpositionier- table (86) are mounted, wherein the rollers (11, 11 ', 11 ") optionally together are variable in position in at least a first direction (X), in particular in the direction or parallel to the cutting line of the ring - Kernpositionierebene with the magazine winding (36) spanned magazine winding plane extends, and optionally wherein at least one of

Rollers (11), in particular in the first direction (X) individually relative to the other rollers (IY, 11 ") is variable in position.

20. Device according to one or more of the preceding claims or in particular according thereto, characterized in that the roll rollers (11, 11 ', 11 ") are mutually positionally variable in a second direction (Y) extending in the direction or parallel to Ringkernpositionierebene and in particular extends perpendicular to the first direction (X).

21. Device according to one or more of the preceding claims or in particular according thereto, characterized in that the roller blind len (11, 11 ', 11 ") with each other in the first and / or second direction (X, Y) relative to the applying device (16) and / or the magazine winding carrier (4) are variable in position.

22. Device according to one or more of the preceding claims or in particular according thereto, characterized in that a particular programmable logic controller or control for driving at least one actuator for the common change in position of the rollers (11, 11 ', 11 ") and an actuator for the relative Position change of at least one roll of rollers (11) is provided, suitable for

Achieving and keeping constant in the winding operation of a desired position of a between the rollers (11, 11 ', 11 ") positionable toroidal core (2) and / or a desired pressure of rollers (11, 11', 11") against the toroidal core (2), in particular servo drives are provided as actuators.

23. Device according to one or more of the preceding claims or in particular according thereto, characterized in that the particular programmable logic controller or control for the coordinated activation of the drive of the toroidal core drive means (89) and / or the

Anlegeeinrichtungsantriebs (61) and / or the guide roller drive (56) of the magazine reel (36) in coordination with the actuation of the actuators for common or single change in position of the rollers (11, 11 ', 11 ") is suitable.

24. Device according to one or more of the preceding claims or in particular according thereto, characterized in that a Magazinwickelandruckrolle (90) is provided by means of a pivoting device (91) periodically pivotable in the magazine winding plane and therein in the peripheral region of a magazine winding (36) radially outward attacking, rotationally driven guide roller (32 ') of radially inwardly against the magazine reel (36) is pivotable.

25. Device according to one or more of the preceding claims or in particular according thereto, characterized in that the pivoting device (91) adjusting elements, in particular a first pneumatic adjusting element (92) for pivoting in and out of the magazine winding plane and a second pneumatic adjusting element (93) for pivoting on and off from the Magazinwickelinnenumf ang, which, by means of the particular programmable logic controller or control depending on the position of the pressure roller (18) of the application device (16) and / or signals of at least one sensor, the position or the course the winding material detected, are controllable

26. Device according to one or more of the preceding claims or in particular according thereto, characterized in that the particular programmable logic controller or control for synchronizing the Anlegeeinrichtungsantriebs (61) and the guide roller drive (56, 56 ') and in particular for adaptation, in particular increasing the drive speed of Guide roller drive (56, 56 ') at intervals, in which the Magazinwickelandruckrolle (90) is pressed against the magazine reel (36) is suitable.

27. A method for winding a particular closed ring core (2) with winding material (3), such as metallic wire or strip, in particular for the production of chokes or transformers for the kilowatt to megawatt range, wherein the winding material (3) to a magazine reel ( 36) is pre-wound and rewound from the magazine reel (36) onto the toroidal core (2), characterized in that the pre-winding into a magazine reel (36) takes place such that the magazine reel (36) has an inner, compared to the toroidal cross-section larger hollow cross-section (6 ¹ ) forms and encloses a ring core section therein.

28. The method according to the preceding claim or in particular according thereto, characterized in that the winding material (3) from the magazine reel (36) with respect to the central axis radially inwardly, in particular continuous reduction of the winding radius on the toroidal core (2) is wrapped.

29. The method according to one or more of the preceding claims or in particular according thereto, characterized in that the toroidal core (2) during Umwickeins is continuously driven in Ringkernumfangsrichtung, so that on the toroidal core (2) formed a helically wound winding (31) becomes.

30. The method according to one or more of the preceding claims or in particular according thereto, characterized in that the winding material (3) during wrapping by means of a ring core cross-section rotating application device (16) is applied to the toroidal circumference.

31. The method according to one or more of the preceding claims or in particular according thereto, characterized in that the winding material (3) during wrapping by means of a to the applying device (16) provided for pressing roller (18) against the toroidal core (2) is pressed.

32. The method according to one or more of the preceding claims or in particular according thereto, characterized in that the winding material (3) during wrapping by means of the application device (16) provided bending rollers (29) is pre-bent against the ring core (2).

33. The method according to one or more of the preceding claims or in particular according thereto, characterized in that the toroidal core (2) circumferential portion, in particular concentrically, in the cavity (6) designed as a hollow gate segment (5) with querschnittöffenbarem or partially cross-cut open core sheath Magazine winding carrier (4) arranged and then the winding material (3) on the magazine winding carrier (4) is wound in front.

34. The method according to one or more of the preceding claims or in particular according thereto, characterized in that the winding material (3) during pre-winding before reaching the magazine winding carrier (4) is bent to a comparison with the Vorwickelradius on the magazine winding carrier slightly larger or about the same size Vorbiegeradius ,

35. The method according to one or more of the preceding claims or in particular according thereto, characterized in that the winding material (3) during the pre-winding the magazine winding carrier (4) to achieve a helically coiled wound magazine reel (36) is fed in a direction which is a component in Magazine winding carrier circumferential direction contains.

36. The method according to one or more of the preceding claims or in particular according thereto, characterized in that the winding material (3) on a plurality of annularly distributed guide elements having arranged, in particular on a plurality of arranged to a roller ring guide rollers (32), magazine winding carrier (4) before being wrapped.

37. The method according to one or more of the preceding claims or in particular according thereto, characterized in that after the pre-winding, the guide elements or guide rollers (32) successively from the in- NEN side of the magazine reel (36) removed and implemented against the outside of the magazine reel (36).

38. The method according to one or more of the preceding claims or in particular according thereto, characterized in that after the implementation of the guide elements or guide rollers (32) of the magazine reel (36) with its radially inner end portion starting from the ring core (2) is wound.

39. The method according to one or more of the preceding claims or in particular according thereto, characterized in that the winding material (3) from the magazine reel (36) in several thread-like gewendel-, substantially precisely superposed layers (78) on the toroidal core (2 ) is wound to form at least one coiled winding strand (73) whose total cross-sectional thickness corresponds in particular to a multiple of the cross-sectional thickness of the winding material (3).

40. The method according to one or more of the preceding claims or in particular according thereto, characterized in that as a winding material (3) strip material is used whose cross-sectional width is greater, in particular by at least an order of magnitude larger than the cross-sectional thickness.

41. The method according to one or more of the preceding claims or in particular according thereto, characterized in that wound prior to winding of the winding material (3) on the toroidal core (2) of the toroidal core (2) helically wound with a guide band (74) along which at least one longitudinal side guide auxiliary means (75) protrude radially outward.

42. The method according to one or more of the preceding claims or in particular according thereto, characterized in that for the accurate winding of the winding material (3) sensors are used whose signal is dependent on the position of the winding material and for drive control or regulation of the toroidal core (2) and / or a mooring device is used to obtain a speed ratio of the drive (s) suitable for accurately winding.

43. The method according to one or more of the preceding claims or in particular according thereto, characterized in that after the winding of the winding material (3) on the toroidal core (2) of the winding strand (73) is separated for the production of terminals at least one point.

44. The method according to one or more of the preceding claims or in particular according thereto, characterized in that the toroidal core (2) with a querschnittsöffenbaren Hohltorus (76) is jacketed, protruding from the outer sheath guide means (75) for the winding material (3) radially outward in that the guide aids (75) are arranged spaced apart along at least one helical course, and that the winding material (3) is wound onto the hollow torus (76) with lateral abutment with the guide aids (75).

45. The method according to one or more of the preceding claims or in particular according thereto, characterized in that the winding material (3) of the magazine reel (36) in a plurality of thread-like coiled, substantially precisely superimposed layers (78), including insulator liners (80) is aufk- on the toroidal core (2) and provided the beginning and end of the winding material (3) as terminals of the continuous winding (72).

46. The method according to one or more of the preceding claims or in particular according thereto, characterized in that as the winding material (3) strip material is used and wound from the magazine reel (36) on the toroidal core (2) coiled, wherein the

Ring core winding plane to achieve the thread pitch laterally offset, in particular laterally offset approximately parallel to a ring core (2) in its ring plane intersecting center line (87) is selected.

47. The method according to one or more of the preceding claims or in particular according thereto, characterized in that when winding the winding material (3) of a plurality of annularly distributed guide rollers (32, 32 ') having magazine winding support (4) on the toroidal core (2) at least a guide roller (32 ') is rotationally driven and that in particular by means of a programmable logic control a Magazinwickelandruckrolle (90) pivoted into the magazine winding plane and therein in the peripheral region of the radially outside of the magazine reel (36) driven guide roller (32') from radially inward against the magazine reel (36 ) and periodically alternately, in particular in a time interval while the winding material (3) is passed through the toroidal opening, is pivoted away from the magazine winding (36) and out of the magazine winding plane.

48. The method according to one or more of the preceding claims or in particular according thereto, characterized in that during winding of

Winding material (3) on the toroidal core (2) depending on the increasing by the winding toroidal or Torkernwicklungsumfang the position and / or the spacing of used as Ringkernpositioniermit- (7) rollers (11, 11 ', 11 ") for maintaining a desired toroidal position and / or a desired pressure of

Rollers (11, 11 ', 11 ") against the ring core (2) and / or the ring Kernumfangsgeschwindigkeit to maintain a desired ratio to Aufwickelumfangsgeschwindigkeit in the toroidal winding plane, in particular by means of a programmable logic controller (PLC) to be changed

49. Annular core choke, comprising a closed ring core and at least one winding having helically wound around the toroidal winding material, characterized in that the cross section of the winding material (3) is adapted to a power range of the toroidal core choke in the kilowatt to megawatt range and that the winding (31) extends continuously with respect to the ring core plane over the at least predominant portion of the ring core circumference, in particular over the substantially entire ring core circumference.

50. toroidal transformer, comprising a closed ring core and at least in each case a primary winding and secondary winding, of which one or both helically coiled around the toroidal winding material, characterized in that the cross section of the winding material (3) of the at least one primary and / or secondary winding is adapted to a power range of the ring transformer in the kilowatt to megawatt range and that at least one winding (31) with adapted to the kilowatt to megawatt range cross section with respect to the ring core level continuously over the at least predominant portion of the ring core circumference, in particular on the essentially entire ring core circumference, extends.

51. Ring core choke, comprising a particular closed ring core (2) and at least one winding (72) which spirally wound around the toroidal core (2) extending winding material (3), characterized in that the winding material (3) in several, substantially precisely superposed layers (78) of winding material (3) wound to form at least one coiled winding strand (73) whose thickness is greater than the thickness, in particular a multiple of the thickness of the winding material (3).

52. Ring core choke according to one or more of the preceding claims or in particular according thereto, characterized in that the winding material (3) strip material is provided, whose cross-sectional width is greater, in particular by at least about an order of magnitude greater than the cross-sectional thickness.

53. Ring core choke according to one or more of the preceding claims or in particular according thereto, characterized in that the winding strand (73) has a rectangular, in particular square cross-section whose thickness is in the range of several millimeters to a few or several centimeters.

54. Ring core choke, comprising a particular closed ring core

(2) and at least one winding (72), which spirally wound around the toroidal core (2) extending winding material (3), characterized in that the winding material (3) in a plurality of substantially exactly superimposed superimposed layers (78) of winding material

(3) is wound up including insulator liners (80), wherein a plurality of layers (78) are continuous with each other in series.

55. toroidal transformer, in particular according to one or more of the preceding claims, characterized in that a toroidal core choke (71) is provided according to one or more of the preceding claims, whose helically wound winding forms the primary winding, and that the secondary winding, a number of winding material having spiral windings, which surround the primary coil and are connected to each other in parallel or in series.

56. toroidal transformer according to one or more of the preceding claims or in particular according thereto, characterized in that at each of a spiral winding (77) of the secondary winding, the winding material on a separable coil carrier (83) made of insulating material with randseitiger

Drive toothing (85) is wound up.

57. toroidal transformer according to one or more of the preceding claims or in particular according thereto, characterized in that wound on a respective spiral winding (77) of the secondary winding the winding material, in particular round wire material, while achieving a total of approximately triangular, from the spiral winding center line radially outwardly tapering spiral winding cross-section is.