EP3834214A1 - Spulenanordnung mit einer stützanordnung - Google Patents
Spulenanordnung mit einer stützanordnungInfo
- Publication number
- EP3834214A1 EP3834214A1 EP19765636.6A EP19765636A EP3834214A1 EP 3834214 A1 EP3834214 A1 EP 3834214A1 EP 19765636 A EP19765636 A EP 19765636A EP 3834214 A1 EP3834214 A1 EP 3834214A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- support element
- coil
- support
- winding layer
- prongs
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
- H01F27/306—Fastening or mounting coils or windings on core, casing or other support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/006—Details of transformers or inductances, in general with special arrangement or spacing of turns of the winding(s), e.g. to produce desired self-resonance
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
- H01F27/303—Clamping coils, windings or parts thereof together
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F37/00—Fixed inductances not covered by group H01F17/00
- H01F37/005—Fixed inductances not covered by group H01F17/00 without magnetic core
Definitions
- the invention relates to a coil arrangement in a star-free and / or core-free design, with a first coil and with a support arrangement for supporting the first coil with its first end region on a footprint.
- WO 2014/138762 A1 describes an air choke coil with a device for pitch compensation of its winding layers, the device being intended to be arranged under the winding layers or above the winding layers.
- the air choke coil comprises at least two concentrically and radially spaced winding layers.
- the device comprises a combination of a set of strip-shaped stem leaves, which are each intended for radial arrangement below or above the winding layers and are provided along one edge with at least one receiving slot starting from the edge.
- a second set of strip-shaped compensating blades is provided, each of which is provided along an edge of at least one insertion slot starting from the edge.
- a compensating blade can be inserted in a form-fitting manner into each receiving slot of a star blade and since the stem blade engages in a positive-locking manner in its insertion slot.
- the slot depths of at least two receiving slots of the set of stem sheets are different.
- the equalizing sheets are supported with their end faces directly against the end faces of the winding layers. So that a vertical alignment of the longitudinal axis of the air choke coil could be achieved, however, with coils, especially with a few winding layers, stable support of the coils could not be achieved without additional stiffening measures, in particular winding systems or struts.
- the object of the present invention was to overcome the disadvantages of the prior art and to provide a coil arrangement with a support arrangement by means of which secure and stable support of the coil arrangement on the installation surface can be achieved.
- a simple tower-like structure of several coils one above the other should also be made possible.
- the coil arrangement according to the invention is designed in particular as a stem-free and / or core-free air choke coil which comprises the coil arrangement:
- first coil with at least one first winding layer, the first coil having a first end region and a second end region spaced in the direction of a first longitudinal axis thereof, and a first outer dimension and a first one in the radial direction with respect to the first longitudinal axis Internal dimension is formed,
- a support arrangement comprising a plurality of first support elements, in particular at least three first support elements, the first coil being able to support the first coil with its first end region on a footprint by means of the first support elements, wherein
- the first support elements are fork-shaped and each comprise a first support element base and at least one first inner support element prong and at least one first outer support element prong, the support element prongs each projecting from the first support element base and being spaced apart from one another to form a first receiving slot, and the first Receiving slot extends in a slot longitudinally continuously between the at least one first inner support element tooth and the at least one first outer support element tooth,
- the first support elements are arranged on the at least one first winding layer of the first coil such that the at least one first winding layer is received in the first receiving slot and the at least one inner first support element prong is located on the side of the at least one first winding layer facing the first longitudinal axis and the at least one outer first support element prong is located on the side of the at least one first winding layer facing away from the first longitudinal axis, and where at
- the at least one first winding layer is supported with its first end region on one of the first support element bases.
- the advantage achieved in this way is that the fork-shaped design of the support elements so that in the radial direction secure reception and support of one coil each, in particular the at least one winding layer thereof, is achieved.
- the support element base of each support element serves to support the winding position of the coil in at least one of its tuning areas. It also ensures that only one selected application is number of winding layers of the first coil is received in the first receiving slot. With the first support element, an exact centering and alignment of the entire coil is also possible.
- the provision and arrangement of the support elements make it possible to dispense with the arrangement of the otherwise conventional, electrically conductive winding stars. This has the advantage that it reduces electrical losses due to induced currents (eddy current losses).
- the vibrations and / or mechanical resonances otherwise occurring in the winding system are avoided, as a result of which the coil arrangement is reduced in noise and the noise emission is greatly reduced during operation.
- the omission of the winding system or systems also results in a reduction in the overall height of the coils in their axial direction. This favors the electromagnetic coupling of the coils if they can be arranged one above the other, since these can be arranged closer to one another. Since the core area of the coil is predominantly to completely free and open, at least one further coil can also be accommodated and arranged within a coil. A possible so-called nesting of at least two coils into one another is thus achieved.
- Another possible embodiment has the features that only a first winding layer is accommodated in the first receiving slot. This makes it possible to ensure that only one of the winding layers of the first coil can be accommodated in the first receiving slot and that the entire coil can be exactly centered and aligned by means of the first support element.
- At least one second coil with at least one second winding layer is provided, the second coil having a first end region and a second end region spaced therefrom in the direction of a second longitudinal axis, and of the second coil in the radial direction with respect to the second Longitudinal axis is formed a second outer dimension and a second inner dimension, and that the support arrangement further comprises a plurality of support assemblies, each of the support assemblies comprising a first support element and a second support element, and that the first support elements in the second end region of the first coil and the second support elements in the first end region of the second coil facing the second end region of the first coil are arranged.
- first support elements on the first th coil and second support elements on the second coil each form an associated support assembly.
- the tower-shaped arrangement of the coils on top of one another is thus simply made possible. This is particularly the case with a so-called starless or coreless coil formation.
- the two support elements, each forming a support assembly are arranged on the respective stimulating areas, which are then connected to one another in a supporting manner.
- the mutual support of the associated support elements can either take place directly on top of one another or by means of an additional coupling element.
- the coil located above is supported on the further coil arranged below it in a load-bearing manner, this taking place in the area of the mutually facing stimulating areas.
- the second support elements are also fork-shaped and each comprise a second support element base and at least one second inner support element prong and at least one second outer support element prong, the support element prongs each projecting from the second support element base and forming a second receiving slot are arranged spaced apart from one another and the second receiving slot extends continuously in a slot longitudinal extension between the at least one second inner support element prongs and the at least one second outer support element prongs. Due to the likewise fork-shaped design of the second support elements, a take-up and support of one coil in each case, in particular the at least one winding layer thereof, can be achieved in the radial direction.
- the support element base of each support element serves on the one hand to support the winding position of the coil in its end region and on the other hand it serves to ensure load transfer to the further coil.
- Another preferred embodiment is characterized in that the second support elements are arranged on the at least one second winding layer of the second coil in such a way that the at least one second winding layer is accommodated in the second receiving slot and the at least one inner second support element prong is on the The second longitudinal axis facing side of the at least one second winding layer and the at least one outer second support element prong is located on the side of the at least one second winding layer facing away from the second longitudinal axis and that the at least one second winding layer with its first end region each on one of the second support element bases is supported.
- This can ensure that only a selected number of winding layers of the second coil can be accommodated in the second receiving slot and that the entire coil can be exactly centered and aligned by means of the second support element.
- a further possible embodiment has the features that only a second winding layer is accommodated in the second receiving slot. This can ensure that only one of the winding layers of the second coil can be accommodated in the second slot and that an exact centering and alignment of the entire coil can take place by means of the second support element.
- first support element and the second support element of each support assembly are each arranged in an alignment that is aligned in the radial direction and that the first support element and the second support element of each support assembly are connected to one another in a supporting manner. Directed, wall-free load transmission from the coil arranged above to the coil arranged below this coil can thus be achieved. Furthermore, this creates the possibility of training the face-end region facing each other openly.
- a further possible embodiment has the features that the support elements with their inner support element prongs lie on an inner circumferential surface of the at least one winding layer and with their outer support element prongs on an outer circumferential surface of the at least one winding layer are arranged in each case thereon, and that at least some of the first support elements are included of the at least one first winding layer of the first coil are fixedly connected and / or that at least some of the second support elements are fixedly connected to the at least one second winding layer of the second coil. Due to the fact that the support element, which is arranged opposite each other, is in direct contact, stable and almost pivot-free support of the coils can be created.
- Another alternative embodiment is characterized in that a plurality of inner support element tines and / or a plurality of outer support element tines are provided and the inner Ren support element prongs and / or the outer support element prongs are arranged spaced apart from one another in the direction of the slot.
- an inner slot penetrating the support element base is formed between the inner support element tines and / or an outer slot passing through the support element base between the outer support element tines.
- a further possible and possibly alternative embodiment has the features that the support element base comprises a central support web and the at least one central support web is arranged stretching within the receiving slot and in the direction of the longitudinal slot extension.
- a further embodiment provides that the at least one inner support element prong has an inner support element prong width in the normal direction with respect to the slot longitudinal extension, which inner support element prong width corresponds at most to a radial distance between immediately adjacent winding layers of a coil. This means that an additional distancing effect for directly adjacent, coaxial winding layers can be created with a multiple arrangement of the inner support element prongs.
- the support element base comprises at least one inner support web, which is arranged at least one inner support web on the side of the inner support element prong facing away from the receiving slot.
- the at least one outer support element prong has an outer support element prong width in the normal direction with respect to the longitudinal slot extension, which outer support element prong width corresponds to a radial distance between immediately adjacent winding layers of a coil. A spacing effect of a winding layer of the respective coil additionally arranged outside the receiving slot can thus also be achieved.
- the support element base comprises at least one outer support web, which is arranged at least one outer support web on the side of the outer support element prong facing away from the receiving slot.
- This can also be a safe support of an additional, outer winding layer on the respective support element, it aims.
- the support elements are formed in particular from a plastic material, preferably reinforced with fibers, and are formed by means of a manufacturing process selected from the group of 3-D printing, casting, injection molding, pressing, transfer molding.
- a manufacturing process selected from the group of 3-D printing, casting, injection molding, pressing, transfer molding.
- Another alternative embodiment is characterized in that the inner support element prongs, the outer support element prongs and the support element base of each support element form an associated, one-piece component.
- a compact, related component can be created, which can be arranged directly on the respective coil as a stable unit, in particular attached to it.
- a further possible embodiment has the features that the at least one inner support element prong and / or the at least one outer support element prong are each formed on the side facing away from the support element base in a roof-shaped or wedge-shaped manner. Due to the roof-shaped or wedge-shaped tapering design of the ends of the Support element tines can largely prevent dirt or dust from depositing on the top of the support element tines.
- a further embodiment provides that the at least one inner support element prong and / or that of the at least one outer support element prong are formed on the side facing away from the support element base to the side facing away from the receiving slot and in the direction of the support element base. This allows material accumulation in the end area to be minimized and the deposit of dust and dirt to be made more difficult.
- the second longitudinal axis of the second coil is aligned with respect to the first longitudinal axis of the first coil. This enables an exact coaxial alignment of the coils arranged one above the other to be achieved. By aligning the two longitudinal axes to each other, a defined load transfer from the upper coil to the lower coil can be achieved.
- Another embodiment is characterized in that the second outer dimension and the second inner dimension of the second coil are arranged in a radial direction within an annular area defined by the first outer dimension and by the first inner dimension of the first coil.
- Another possible embodiment has the features that the first support element and the second support element of a support assembly are supported directly on one another and are connected to one another by means of connecting means, in particular are screwed together.
- the selected dimensions of the coils allow a direct, immediate load transfer between the support elements of a support assembly.
- a safe and stable connection between the coils can be created by means of the support modules.
- a further embodiment provides that the second outer dimension of the second coil is made smaller than the first inner dimension of the first coil.
- the outer dimension of the second coil can be arranged and accommodated within the first coil for transport purposes. This saves space for the transport movements to be carried out.
- Another embodiment is characterized in that a coupling element is provided in each support assembly and the coupling element extends in the radial direction between the first support element and the second support element.
- Another preferred embodiment is characterized in that the coupling element is connected to both the first support element and the second support element, in particular is screwed to each.
- a mutual safe and stable connection of each of the support assemblies can thus be created. Furthermore, safe and permanent load transfer can also be achieved.
- FIG. 1 shows a coil arrangement assembled from coils to form a tower, in a graphical representation
- FIG. 2 shows the first, lower coil according to FIG. 1 in a diagrammatic representation
- Fig. 3 shows the second, upper coil of Figure 1, in a graphical representation.
- Fig. 4 shows a first embodiment of a first or second support element, in a diagram
- FIG. 5 shows a second embodiment of a first or second support element, in a schematic representation
- FIG. 6 shows a possible further embodiment of a first or second support element, in a diagrammatic representation
- Figure 7 shows a detail of a coil with a plurality of winding layers recorded in the slot, in section.
- Figure 8 is a simple stacked arrangement of a winding position of the first coil and the second coil with a support assembly, in axial section and in a simplified enlarged view.
- FIG. 9 shows a minimal design of the coil arrangement with a coil encompassing a winding layer and the support elements arranged thereon on the bottom.
- the coil arrangement 1 can also be referred to as a coil assembly. It could also be several coils one above the other to a coil tower to the coil assembly 1 is put together.
- the coils 2, 3 can also be referred to as choke coils, in particular as air choke coils, and mostly have not inconsiderable masses and large dimensions associated therewith. Such coils 2, 3 of the coil arrangement 1 do not necessarily have to have an iron core in these exemplary embodiments and in this case represent a stem and / or core-free design. This coil arrangement 1 is predominantly used in the medium, high or extremely high voltage range.
- the coils 2, 3 can together form a coil assembly, which together form either the not yet assembled or not yet assembled coil assembly 1 or the ready-to-use assembled coil assembly 1.
- the first coil 2 comprises at least one first winding layer 4, but the first coil 2 can also comprise a plurality of first winding layers 4 arranged concentrically to one another.
- the multiple arrangement of first winding layers 4 is indicated in FIG. 1.
- the first winding layer 4 or the individual first winding layers 4 are preferably each hollow cylindrical and are arranged at a distance from one another. If several first winding layers 4 are provided, these are preferably electrically connected in parallel and magnetically coupled. Furthermore, in the case of a plurality of first winding layers 4, these are usually kept at a predetermined distance or a radial distance from one another by means of spacers 5.
- the spacer body (s) 5 can also be designed as split strips and referred to as these.
- the first coil 2 can form a free core area 6 in its hollow cylindrical interior, but this is not absolutely necessary.
- the at least one first winding layer 4 or also any possible further first winding layer 4 comprises or comprise as radial boundary surfaces a first outer jacket surface 43 and a first inner jacket surface 44 spaced apart therefrom in a winding layer thickness in the radial direction.
- the second coil 3 also includes at least one second winding layer 7, which is also preferably of hollow cylindrical design. However, a plurality of second winding layers 7 arranged concentrically to one another could also be provided to form the second coil 3.
- the preferably hollow cylindrical configuration of the coils 2, 3 or their winding layers 4, 7 defines a first longitudinal axis 8 of the first coil 2 and a second longitudinal axis 9 of the second coil 3.
- the longitudinal axes 8, 9 can also be referred to as longitudinal axis.
- the at least one second winding layer 7 or also any possible further second winding layer 7 comprises or comprise, as radial boundary surfaces, a second outer jacket surface 45 and a second inner jacket surface 46, which is spaced therefrom in a radial direction, in the radial direction.
- the winding layers 4, 7 of the coils 2, 3 can preferably be formed in a self-supporting embodiment.
- the first coil 2 or its at least one first winding layer 4 has a first outer dimension 10 and a clear width or a clear first inner dimension 11.
- the clear first inner dimension 11 relates in particular to the first winding layer 4 closest to the first longitudinal axis 8 and is measured in the radial direction with respect to the first longitudinal axis 8.
- the second coil 3 in turn has a second outer dimension 12 and a second clear inner dimension 13. If only one winding position 4, 7 is provided for each coil 2, 3, these can have approximately the same external dimensions 10,
- the clear width or the clear first inner dimension 11 of the first coil 2 can be selected or designed to be larger than the second outer dimension 12 of the second coil 3, in particular the second winding layer 7 that is most distant from the second longitudinal axis 9
- This training is shown in Lig. 1.
- the second coil 3 can be arranged within the first coil 2, which can be advantageous and space-saving for transport purposes. If a starless or coreless design of at least the first coil 2 is selected, the second coil 3 at least for the common transport of the coils 2, 3 up to assembling the same within the first coil 2 in the free core region 6 thereof.
- the dimensions given above are diameter dimensions with the respective center in one of the longitudinal axes 8, 9.
- the difference in dimensions between the second outer dimension 12 (second outer diameter) of the second coil 3 and the first inner dimension 11 (first inner diameter) of the first coil 2 can be selected such that the second coil 3 can be arranged within the first coil 2 and can therefore also be accommodated within the latter.
- the gap between the second coil 3 and the first coil 2 can be a few millimeters up to one centimeter or even several centimeters or even up to several decimeters.
- the coil assembly 1 is manufactured and mostly transported either directly from the factory (factory) or a storage facility provided for this purpose to the installation site.
- the location provided for the provision of the coils 2, 3 is referred to here as the location where the preparatory work for the transport and also the possible packaging are carried out.
- a mutually different arrangement can be selected in the fully installed and ready-to-use position of the coil arrangement 1, in particular at least the two coils 2, 3, a mutually different arrangement can be selected.
- the installation takes place at the installation site, which has or forms a predominantly horizontally oriented support surface 14.
- the footprint 14 is preferably formed by a flat surface (contact plane) and can be realized in particular by the Erdbo or a building floor and / or a foundation.
- first support elements 16 are provided. Depending on the design of the coil 2 and the number of first winding layers 4, the first support elements 16 can be adapted to it.
- the first support elements 16 are preferably in the region of a first end region 17 and can can also be arranged on a second end region 18 of the first coil 2.
- the second end region 18 faces the second coil 3 and is in the operating position or operating position on the side facing away from the installation surface 14.
- the first stimulating area 17 faces the installation surface 14 and is arranged opposite the second stimulating area 18 in the axial direction and thus is arranged facing away from the second coil 3.
- the first coil 2 is supported on the mounting surface 14 by means of at least three of the first support elements 16, optionally with the interposition of insulating or isolating elements, and forms a load-bearing base for at least the second coil 3.
- the two longitudinal axes 8, 9 of the coils 2, 3 essentially have a normal orientation with respect to the installation surface 14. In a ho rizontal alignment of the footprint 14, the longitudinal axes 8, 9 are aligned perpendicularly and define the common longitudinal central axis 15 of the coil assembly 1st
- the second coil 3 is supported on the side of the first coil 2 facing away from the installation surface 14, namely on the second end region 18.
- second support elements 19 are provided for the second coil 3.
- the second coil 3 with the smaller second external dimension 12 is preferred arranged above the first coil 2.
- the first coil 2, which is larger here, above the second coil 3 in the form of a tower structure.
- a coupling element 20 is provided between a first support element 16 and a second support element 19 to be coupled therewith.
- the respective coupling element 20 is preferably plate-shaped or flat profile.
- the coils 2, 3 can be arranged in a tower-like structure one above the other at the installation site, on which the installation surface 14 preferably has a horizontal orientation, and the coil arrangement 1 can be formed therefrom.
- the two longitudinal axes 8 and 9 are aligned with one another to form the common longitudinal central axis 15 and in a normal and thus perpendicular orientation with respect to the installation surface 14.
- the previously mentioned support elements 16, 19 are preferably structurally adapted to it depending on the design and number of winding layers 4, 7.
- the structure of the same is essentially the same, and possible training courses are described in more detail below.
- the arrangement of the support elements 16, 19 on the coils 2, 3 is preferably stationary and fixed on these.
- the fixed arrangement can also be referred to as an attachment, this being e.g. can take place in the course of the manufacturing process of the winding layers 4, 7 by means of the resin used as a binder. If this is the case, the respective first support elements 16 and second support elements 19 to be coupled with one another are to be arranged in an arrangement that is aligned with one another in the radial direction. This usually takes place in the same circumferential division or in the same division distance.
- a support assembly 21 comprises in this embodiment a first Stauerele element 16, a coupling element 20 and a second support element 19, which are each together or cooperate with each other.
- the first support elements 16 and the second support elements 19 are each arranged in an alignment aligned in the radial direction.
- the mutual connection between the coupling element 20 and the first support element 16 and the second support element 19 can be carried out by means of connecting means 22, such as screws, screw-nut connections, rivets or the like. However, an adhesive connection or another type of connection could also be selected.
- several of the support assemblies 21 can be provided in the circumferential direction.
- a statically determined mutual support is achieved by a number of three support assemblies 21.
- the individual support assemblies 21 between the first coil 2 and the second coil 3 form part of a support arrangement 23.
- the support arrangement 23 can further comprise those first support elements 16 which are arranged in the second end region 18 of the first coil 2.
- first support elements 16 By means of these first support elements 16, the entire coil arrangement 1 can optionally be placed on the installation surface 14 with the interposition of isolating or isolating elements.
- the previously described second support elements 19 are arranged at least in a first end region 24 of the second coil 3, which faces the first coil 2 and its second end region 18 or can be turned. However, a plurality of second support elements 19 can also be arranged in a second end region 25 of the second coil 3, which is spaced apart in the axial direction. It would then be possible to attach a cover element and / or a roof and / or electrical connections to the second end face region 25 of the second coil 3 that is furthest apart from the support surface 14.
- the support arrangement 23 further comprises at least the same number of second support elements 19 as the number of first support elements 16.
- the first support element 16 shown in simplified form in FIG. 4, is fork-shaped and comprises a first support element base 26 and at least one first inner support element prong 27 and at least one first outer support element prong 28. There are two pieces each of inner first support element prongs 27 and outer first Supporting element tines 28 are provided.
- the first support element prongs 27, 28 protrude from the first support element base 26 or project therefrom in a normal orientation.
- the first support element prongs 27, 28 are spaced apart from one another to form a first receiving slot 29.
- the first support element base 26 forms at least one first support surface 47 on its side facing away from the first support element prongs 27, 28.
- the first support element 16 could be arranged not only in the first coil 2 but also in the second coil 3 or only in the second coil 3.
- the first receiving slot 29 extends continuously between the first support element prongs 27, 28 and defines a first longitudinal slot extension, which is indicated by a double arrow.
- the longitudinal slot extension can be formed by a partial section of a circular arc, which is defined by the first winding layer 4.
- the first one Support element base 26 serves, among other things, to support the second coil 3 located above it with its second support elements 19 on the first coil 2. Furthermore, the first coil 2 can also be supported in a load-bearing manner on a surface, namely the surface 14.
- the at least one first inner support element prong 27 each has an inner surface, namely the first inner lateral surface 44
- the at least one first outer support element prong 28 each has an outer surface, namely the first outer lateral surface 43, only on a first one Winding layer 4 is present or supported on it.
- the first support elements 16 are arranged on the at least one first winding layer 4 of the first coil 2 such that the at least one first winding layer 4 is received in the first receiving slot 29.
- the at least one first inner support element prong 28 of the first support element 16 is located on the side of the at least one first winding layer 4 facing the first longitudinal axis 8.
- the at least one first outer support element prong 28 of the first support element 16, on the other hand, is located on the side of the first longitudinal axis 8 from the turned side of the at least one first winding layer 4.
- Preferably only one of the first winding layers 4 is received in the first receiving slot 29.
- several of the first winding layers 4 could also be accommodated in the first receiving slots 29 and the radial distance between the first winding layers 4 in the region of the first support element 16 by means of the previously described spacers 5 (split strips).
- This training and multiple recording of several second winding layers 7 would also be possible in a second receiving slot 40 of the second support element 19 and conceivable and is analog to the design of the first support element 16 to the second Stauerele element 19 to be transferred.
- FIG. 7 A possible design and arrangement is shown in FIG. 7 for two first winding layers 4 of the first coil 2 in the first receiving slot 29 of the first support element 16 in a simplified manner.
- a spacing piece indicated in dashed lines could also be arranged so as to protrude from the support element base 26. This could also be a further support element tine, not described in any more detail.
- This multiple recording of winding layers 7 can also take place in the second coil 3, which is no longer shown in more detail, as has already been described previously.
- the at least one first central support web 30 is arranged to extend longitudinally within the first receiving slot 29 and in the direction of the first slot.
- the simplest design of the support elements 16, 19 is given if they include the support element base 26, 37, the inner support element prongs 27, 38 and the outer support element zinc, 28, 39.
- the central support web 30 can be provided, but need not be.
- the first support element 16 can also be designed for this purpose. 4 that a plurality of first inner support element prongs 27 and a plurality of first outer support element prongs 28 are provided. Two pieces of support element prongs 27 and 28 are selected. Furthermore, the first inner support element prongs 27 and also the first outer support element prongs 28 are arranged spaced apart from one another in the direction of the longitudinal slot extension. Between the first inner support element prongs 27, an inner slot 31 is arranged or formed in the first support element base 26. An outer slot 32 passing through the first support element base 26 can also be provided or formed between the first outer support element prongs 28.
- the inner support element prongs 27 should have an inner support element prong width 33 which speaks approximately or at most a radial distance between immediately adjacent winding layers 4 , The same can apply to the outer support element prongs 28 if they are to be inserted into the free hollow annular space 4 formed between immediately adjacent winding layers 4. Then the outer support element prongs 28 should also have an outer support element prong width 34 which corresponds approximately or at most to a radial distance between winding layers 4 arranged directly adjacent to one another. If the central support web 30 is provided, it is advantageous to provide at least one inner support web 35 on the first support element base 26.
- the at least one inner support web 35 is arranged on the side of the first inner support element tine 27 facing away from the first receiving slot 29 and is arranged on the first support element base 26. Furthermore, at least one outer support web 36 can also be provided, this at least one outer support web 36 being arranged on the side of the first outer support element prong 28 facing away from the first receiving slot 29.
- the at least one inner support element prong 27 and / or the at least one outer support element prong 28 can each have a roof-shaped or wedge-shaped taper on the side facing away from the first support element base 26. Additionally or independently of this, however, the at least one inner support element prong 27 and / or the at least one outer support element prong 28 on the side facing away from the first support element base 26 could drop to the side facing away from the first receiving slot 29 and in the direction of the first support element base 26 be trained.
- the design and arrangement of the inner support element prongs 27, the outer support element prongs 28, the inner and outer support webs 35, 36 and the inner and / or outer slot 31, 32 can also be transferred analogously to the second support elements 19. The same can also apply to the roof-shaped or wedge-shaped tapering of the support element prongs 27 and / or 28. To avoid unnecessary repetitions, reference is made to the detailed description of the first support element 16 for this embodiment.
- first support element 16 is shown in FIG. 5.
- the first support element 16 described in FIG. 5 could also be arranged or provided not only for the first coil 2 but also for the second coil 3 or only for the second coil 3.
- the first support element 16 described in FIG. 5 can serve, for example, as a base part for the first support element 16 shown in FIG. 4.
- each of the support elements 16 is therefore unique, which is to be arranged on the coil 2 at a precisely predetermined circumferential position.
- the first support element 16 comprises the first support element base 26, two pieces each of inner and outer support element prongs 27, 28 and the central support web 30 in the first receiving slot 29.
- the inner and outer slots 31, 32 in the first support element base 26 may have to be provided but not be provided.
- the second support element 19, shown in simplified form in FIG. 6, is likewise fork-shaped and comprises a second support element base 37 and at least one second support element prong 38 and a second outer support element prong 39.
- the second support element prongs 38, 39 protrude from the second support element base 37 stand out from this in normal orientation.
- the second support element tines 38, 39 are also spaced apart from one another by forming a second receiving slot 40.
- the second support element base 37 forms a second support surface 48 on its side facing away from the second support element prongs 38, 39.
- the second support element 19 described here could be arranged or provided not only for the second coil 3 but also for the first coil 2 or only for the first coil 2.
- the second receiving slot 40 in turn extends continuously between the two second support element prongs 38, 39 and defines a second slot longitudinal extension.
- it can also comprise at least one second central support web 41.
- the at least one second central support web 41 is inside the second receiving slot 40 and in the direction of the second Slit longitudinal extension arranged extending.
- the support webs 30, 35, 36, 41 also represent an integral, one-piece component in the respective support element 16, 19.
- the second support element base 37 is supported by means of the coupling element 20 on the first support element base 26 of the first support element 16. It is also always provided in the second coil 3 that the at least one inner second support element tooth 38 bears against an inner surface and the at least one outer second support element tooth 39 bears against an outer surface of only one second winding layer 7 or is supported on it.
- the second support elements 19 are arranged on the at least one second winding layer 7 of the second coil 3 such that the at least one second winding layer 7 is received in the second receiving slot 40.
- the at least one inner second support element prong 38 of the second support element 19 is located on the side of the at least one second winding layer 7 facing the second longitudinal axis 9.
- the at least one outer second support element prong 39 of the second support element 19 is located on the side of the second longitudinal axis 9 opposite side of the at least one second winding layer 7.
- a slope compensation must be taken into account in order to avoid a kink in the winding strand (conductor element) after a first full circumferential winding.
- the winding strand is to be raised in the manner of a helix or helix in the circumferential direction in accordance with the winding direction in the axial direction until the lower end face of the first winding strand comes to lie on the top of the winding beginning of the lowest winding strand after a full circumference.
- This raising or distancing from a normal plane with respect to the longitudinal axis 8, 9 is preferably carried out continuously.
- the slope in each of the winding layers 4 and / or 7 results from the thickness or thickness of the individual winding strand present in the axial direction.
- the thickness or thickness of the respective slope compensation elements 42 can be carried out and adapted in a known manner.
- One of the slope compensation elements 42 is indicated in FIG. 5 in dashed lines in the first receiving slot 29.
- the or the slope compensation elements 42 can either be formed by a separate component and / or a direct and integral part of the support element or elements 16 and / or 19 represent or form.
- the support element prongs 38, 39 starting from the respective end region 17, 18; 24, 25 up to a maximum of approximately half the distance or the height between the respective end regions 17, 18; 24, 25 of the coils 2; 3 extend. Since the coils 2, 3 can also have very variable heights in the direction of their longitudinal axes 8, 9, depending on the size, the support element prongs 27, 28; 38, 39 have a length in a range with a lower limit of 5 cm and an upper limit of 50 cm, preferably in a range between 10 cm and 30 cm. A percentage of the length of the support element prongs 27, 28; 38, 39 can be between 1% and 50% of the height between the respective end regions 17, 18; 24, 25 of the respective coils 2; 3 lie.
- the material for forming the support elements 16 and / or 19 can be selected in a wide variety of ways. So electrically insulating materials, preferably plastics, ceramics or the like can be used. When using plastic materials can these can also be reinforced with fibers. Since the coil arrangements 1 are mostly small series, very small series or even one-off productions, the support elements 16 and / or 19 can also be produced by means of a 3-D printing process. However, there would also be production processes such as casting, injection molding , Presses, injection presses or the like conceivable. An exact adaptation of the respective support elements 16 and / or 19 to the dimensional requirements can thus be carried out quickly and inexpensively.
- a related, one-piece component can be created, which tines at least the inner support elements 27, 38, the outer support element prongs 28, 39 and the support element base 26, 37 and possibly also at least some of the support webs 30 for each support element 16, 19 , 35, 36, 41.
- FIG. 8 shows an arrangement of a support assembly 21 between a first coil 2 with a single first winding layer 4 and a second coil 3 with likewise a single second winding layer 7 in section and on an enlarged scale. This is in order to maintain better clarity.
- the second outer dimension 12 and the second inner dimension 13 of the second coil 3 are selected here such that these dimensions are predominantly arranged within an annular surface defined by the first outer dimension 10 and by the first inner dimension 11 of the first coil 2.
- the inner and outer dimensions are chosen to be approximately identical. If the first coil 2 included a plurality of first winding layers 4 arranged coaxially to one another, the second winding layer 7 would also be arranged within the entire ring surface of the first coil 2.
- first and second support elements 16, 19 each of a support assembly 21 can be arranged to support one another and be connected to one another.
- the connec tion can be done by means of the connecting means 22 described above.
- the coupling element 20 can thus be dispensed with and the first support element base 26 serves as a direct support for the second support element base 37.
- a spacer element could also be provided between the first and second support elements 16, 19, this being, for example, an insulator element or the like can act.
- 9 shows a minimal exemplary embodiment of the coil arrangement 1 with only one first coil 2, which in turn comprises only a first winding layer 4.
- the at least three first support elements 16 are arranged in the region of the first end region 17.
- the first coil 2 can be supported on the installation surface 14, preferably by means of an intermediate arrangement of insulator elements, not specified.
- the basic structure of the first coil 2 and the first support elements 16 corresponds to that as has already been described in detail previously in FIGS. 1 to 8. Therefore, in order to avoid unnecessary repetition, reference is made to this description and disclosure.
- first support elements 16 in the first end region 17 facing the installation surface 14 can also be selected to be larger or smaller than in the intermediate region between the first coil 2 and the at least one second coil 3.
- the number of support assemblies 21 can also be smaller or larger than the total number of first support elements 16 in the region of the first end region 17.
- the same number of first support elements 16 can also be selected in the first end region 17 facing the installation surface 14 as the number of support assemblies 21 in the intermediate area between the first coil 2 and the at least one second coil 3.
- All information on value ranges in the present description is to be understood in such a way that it includes any and all sub-areas, e.g. the information 1 to 10 is to be understood in such a way that all sub-areas starting from the lower limit 1 and the upper limit 10 are also included, i.e. all sub-areas begin with a lower limit of 1 or greater and end with an upper limit of 10 or less, e.g. 1 to 1.7, or 3.2 to 8.1, or 5.5 to 10.
- second winding layer 37 second support element base first longitudinal axis 38 second inner support element prongs second longitudinal axis 39 second outer support element teeth first outer dimension
- first inner lateral surface first support element 45 second outer lateral surface first end region 46 second inner lateral surface second end region 47 first supporting surface
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Windings For Motors And Generators (AREA)
- Coils Of Transformers For General Uses (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ATA50674/2018A AT521480B1 (de) | 2018-08-06 | 2018-08-06 | Spulenanordnung mit einer Stützanordnung |
PCT/AT2019/060249 WO2020028929A1 (de) | 2018-08-06 | 2019-08-05 | Spulenanordnung mit einer stützanordnung |
Publications (2)
Publication Number | Publication Date |
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EP3834214A1 true EP3834214A1 (de) | 2021-06-16 |
EP3834214B1 EP3834214B1 (de) | 2022-09-28 |
Family
ID=67902259
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP19765636.6A Active EP3834214B1 (de) | 2018-08-06 | 2019-08-05 | Spulenanordnung mit einer stützanordnung |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3834214B1 (de) |
AT (1) | AT521480B1 (de) |
WO (1) | WO2020028929A1 (de) |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1170321A (en) * | 1982-01-20 | 1984-07-03 | Richard F. Dudley | Low loss spider support for coil of an inductive apparatus |
AT512385B1 (de) * | 2012-01-04 | 2015-08-15 | Coil Holding Gmbh | Vorrichtung zur beeinflussung von blindleistungsflüssen |
BR112015001422B1 (pt) * | 2012-07-24 | 2022-04-19 | Siemens Aktiengesellschaft | Reator de potência de núcleo de ar do tipo seco, defletor para desviar vento em um reator de núcleo de ar do tipo seco e unidade de câmara de distribuição de ar para desviar vento em um reator de núcleo de ar |
AT514282B1 (de) * | 2013-03-15 | 2015-10-15 | Trench Austria Gmbh | Wicklungslagen-Steigungsausgleich für eine Luftdrosselspule |
CN105469955B (zh) * | 2016-01-26 | 2017-08-11 | 特变电工股份有限公司 | 一种干式电抗器的汇流及支撑结构 |
-
2018
- 2018-08-06 AT ATA50674/2018A patent/AT521480B1/de active
-
2019
- 2019-08-05 WO PCT/AT2019/060249 patent/WO2020028929A1/de unknown
- 2019-08-05 EP EP19765636.6A patent/EP3834214B1/de active Active
Also Published As
Publication number | Publication date |
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AT521480B1 (de) | 2020-02-15 |
EP3834214B1 (de) | 2022-09-28 |
WO2020028929A1 (de) | 2020-02-13 |
AT521480A4 (de) | 2020-02-15 |
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