• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Winding layer pitch compensation for an air choke coil (1) having at least two concentric, radially spaced apart winding layers (2-5) comprising the combination of: a first set of stripe-shaped star blades (15) arranged radially beneath or above the winding layers, respectively (2 - 5) and provided along one edge (19) with at least one receiving slot (20) emanating from the edge (19), a second set of strip-like compensating blades (18) each along at least one edge (21) from the edge (21) outgoing insertion slot (22) are provided, wherein in each receiving slot (20) of a star blade (15) a compensating blade (18) is positively inserted and the star blade (15) thereby engages positively in the insertion slot (22), and wherein the slot depths (Ts) of at least two receiving slots (20) of the set of star blades (15) are different.
    公开号:AT514282A1
    申请号:T50179/2013
    申请日:2013-03-15
    公开日:2014-11-15
    发明作者:Otto Dipl Ing Fh Haslehner
    申请人:Trench Austria Gmbh；
    IPC主号:
    专利说明:

    PATENT OFFICER DIPL.-ING. Dr.techn. ANDREAS WEISER EUROPEAN PATENT ÄND TRADEMARK ATTORNEY Λ 1130 W IEN · KOPFGASSE 7 05695 'i'rench Austria GmbH A-4060 Leonding (AT)
    The present invention relates to a winding layer pitch compensation for an air throttle coil having at least two concentric, radially spaced winding layers.
    Air choke coils are used in power grids and are "dry insulated" as opposed to oil insulated coils. Reactive coils in which the isolation is accomplished by Heststoffisolation and sufficient creepage and clearance distances and which usually also contain no ferromagnetic core, i. whose central airspace is free.
    The concentric winding layers of the air throttle coil are each held at their upper and lower axial ends by a holding star, which is composed of a plurality of star-shaped radially arranged arms, so-called star blades. Instead of a one-piece holding star, a multiplicity of individual star blades can also be used, which lie only in the area below and above the winding layers in order to save star sheet material. The opposing holding starlets or star blades are thereby formed by means of spacer strips running between the winding layers Tensioned against each other, around the winding layers Ί 1-.1 ..: (+43 1) 8:79 17 06 - FAX: (+43 1) 879 17 07 'E-MAIL: MAIL@EATENTE.NET - WEB: WWW. PATENTENET FIRST BANK: 038-56704 BLZ: 20111 IBAN: ATI02011100003856704 -BIG: GlBAATWW VAT: AT U 53832900 2 to hold. When winding the coil, the: star blades and Abstandeha1teleisten be used as a winding aids simultaneously by first of the lower stars sheets clamped on a rotating device and then the winding layers are built thereon, with a set Äbstandshalteisten is mounted therebetween.
    Due to different conductor cross sections in the individual winding layers, this results in different gradients and / or axial heights of the individual Windlungsla gene, which require a winding layer Steigüngsausgleich: Between the axially opposite star blades and the intermediate winding layer compensation sheets are inserted, which the winding layers against the Support the star blades and center in the axial direction.
    The currently known compensation sheets are relatively complex parts, since the height to be compensated between a star blade and a growing position depends on the circumferential location. the coil, Radialort the winding layer and conductor cross-section of the winding layer varies, which already for a single Spulendimen- sioning a 'variety of different ,: individually calculated compensating leaves required' for different coil dimensions multiply the required variants of compensating blades.
    The object of the invention is to overcome the disadvantages of the known solutions and to provide a simplified winding pitch compensation for air throttle coils.
    This object is achieved according to the invention by the combination of: a first set of strip-shaped star blades, which are each intended for radial arrangement under or over the winding layers and provided along one edge with at least one receiving slot extending from the edge, a second set of strip-shaped compensating blades, each one are provided along one edge with at least one outgoing from the edge insertion slot, in each receiving slot of a star blade a compensating blade is inserted form-fitting and the star blade engages positively in the insertion slot, and wherein the slot depths of at least two receiving slots of the set of star leaves are different.
    The invention thus provides a modular plug-in system for constructing a winding layer pitch compensation of only a few variable parts, on the one hand compensating leaves and on the other hand star blades, which are form-fitting nestable on the basis of their slots, wherein the slot depth in the star leaves the Vorkragung, i. effective compensation height of the compensating blades defined. As a result, the compensating blades can all be made uniform, possibly with different thicknesses corresponding to the conductor cross-section as explained in more detail below, and thus manufactured and stored in a 4-fold 4-fold manner. The slot depths of the star leaves can be easily precalculated and then the slots are made in the appropriate depths, which is a relatively simple final production step and can be made for example on a uniform type of unprotected star blade blanks. All in all, this results in a mechanically high-strength system that is extremely variable in terms of its dimensioning and compensation options: a system that greatly facilitates both the production and the storage of the: winding layer pitch compensation. For single layer inductors, star blades may be used which have only a single receiving slot, the slot depths of the receiving slots then being different within the star blade set between different star blades. For multi-layer inductors, it is particularly advantageous if each star blade at least two spaced from each other, from the edge; outgoing receiving slots has, the slot depths are different, so that different effective compensation levels for different layers can be created at each individual star blade.
    According to a preferred embodiment of the invention, the star blades are made of metal and the receiving slots are milled therein. On the one hand meets the requirements for the high strength of the star blades, which must carry the great weight of the winding layers, and on the other hand allows 5/19 5: this extremely rapid and high-precision finishing: the star blade blanks z. B. by CNC milling in the desired ski depths.
    Furthermore, it is particularly advantageous if the compensating blades are molded together with their insertion slots made of plastic o-the cut. The compensating blades can simultaneously perform an isolator function and - once apart from different thicknesses for different conductor cross sections - are made substantially uniform, z. B. by preforming the plastic. If GRP (glass fiber reinforced plastic) is used as the plastic, the slots can also be formed by cutting, which with a uniform slot depth and thus small manufacturing anf promotions, z.B :. manually with a single template, can be performed.
    As already briefly mentioned, the slot widths of at least two receiving slots of a star blade are preferably different and the compensating blades preferably have correspondingly adapted different thicknesses in order to be able to support winding layers with different conductor cross sections.
    In a first embodiment of the invention, a plurality of star leaves may be welded at their one ends into a star, so that they form stop stars. Alternatively, the star leaves are preferred as so-called. "Sternblattstummel". executed, i. the star blades do not reach into the central air space of the air choke in their installation area to save material and weight.
    In any case, it is particularly advantageous if, according to a further feature of the invention, the star sheets have anchors for between the winding layers' running Abstandstandseleis-th or Zugbandagen, z. B. holes for screwing or hanging such elements.
    The invention will be explained in more detail with reference to an embodiment shown in the accompanying drawings. In the drawings shows:
    1 shows an air throttle coil with two different embodiments (one of which is indicated by dashed lines) of a winding position-slope compensation according to the invention in a perspective view;
    FIG. 2 shows one of the star blades of the winding layer pitch compensation of FIG. 1 with inserted compensation blades in a perspective view in detail; FIG. and FIGS. 3 and 4 show a star blade and a compensating blade, each in a perspective view in detail.
    According to Fig. 1, an air throttle coil 1, z. For example, for high-voltage power grids, four concentric winding layers 2, 3, 4, 5, which are spaced apart by a plurality of circumferentially spaced Abstandshalteieisten 6 from each other to each other to form cooling air gaps 7. Each of the winding layers 2 - 5 is made of a multiplicity of layers in the axial direction 8 of the air dipper bobbin 1, forming and reaching a conductor 9, such as a wire, wire strand or wire rope - depending on the conductor cross-section diameter D and Number of turns - an individual winding layer height h2 - h5 (only h5 of the outer layer 5 shown).
    The winding layers 2-5 are held together at their upper and lower axial ends IQ, II of multi-arm support stems 12, 13, which are stretched over tension bands 14 and / or the stand-off support strips 6 against each other. Each holding star 12, 13 is composed of a plurality of radially arranged star blades 15, which are shown in two embodiments in Fig. 1: In the embodiment of Fig. 1 shown with dashed extension lines the star blades 15 extend to the center of the central air space 16 of the air throttle coil 1 and are there at their ends 17 together - possibly with the formation of a hub - welded to the holding star 12, 13.
    In the embodiment shown in solid lines in Fig. 1, the star leaves 15 are " star-leaf silence " Shortened, which are arranged only in the area below or above the winding layers 2-5, so that they no longer reach into the central air space: 16 of the air throttle coil 1.
    Due to the different overall heights h2-h5 of the different winding layers 2-5, a winding layer pitch compensation between the star blades 15 and the winding layers 2-5, more precisely their first and last turns 8/19: 8: the conductor 9, required to To hold each winding layer 2-5 frictionally between the respective axially opposing star blades 15 .: serve a variety of individual, each between a star blade 15 and a winding layer 2-5 arranged compensating blades 18, their interaction with the star blades 15 with reference to FIG -4 is explained in more detail.
    Referring to Figs. 2-4, each star sheet 15 is striped, e.g. in the form of an approximately rectangular plate, and provided along a longitudinal edge 19 with a number of the longitudinal edge 19 outgoing receiving slots 20. The number of receiving slots 20 corresponds to the number of Wickiungslagen 2-5, for which the star blade 15 is determined. Each compensating blade 18 is in turn strip-shaped, z. B. in the form of an approximately rectangular plate, and provided with (at least) one outgoing from an edge 21 Einsteckschlitz 22. In each Aufnähmeschlitz 20 of a star blade 15 is now a compensating blade 18 form-fitting inserted so that at the same time the star blade 15 engages positively in the insertion slot 22 of the compensating blade 18, as shown in Fig. 2. The leveling blades 18 are thus approximately normal, i. across, put on or in the star leaves 15. The slot widths B ;; the receiving slots 20 of the star blades 15 each correspond to the thickness DA of the compensating blades 18 received therein, and vice versa accordingly the Schlitzbrei- 9/19 9 th B & the slots 22 of the compensating blades 18 the thicknesses Ds of each inserted therein star blades 15th
    The star blades 15 preferably have a uniform thickness Dg, and accordingly, the slot widths BÄ of the insertion slots 22 are uniformly the same. The compensating blades 18, on the other hand, generally have different thicknesses Da, depending on the conductor cross-section diameter p of the winding layer 2 to 5 to be supported. Accordingly, the slot widths Bs of the receiving slots 20 of the star blades 15 are different and the thickness DÄ of each increasing Ausgleichsbla11s 18 adapted.
    The slot depths ΤΛ of the insertion slots 22 of the compensating blades 18 are preferably (although not necessarily) uniform, whereas the slot depths Ts of the various receiving slots 20 of a star blade 15 are different, ie at least two slot depths Ts: two receiving slots 20 are different The compensating blades 18 penetrate at different depths into a star blade 15 and thus produce different effective levels of compensation ah2, ah3, ah4, atu (in FIG. 2 only ah5 for the outermost layer: 5 shown) between a star blade 15 and a Wicklungaelage 2-5 Star blades 15 distributed over the circumference of the air throttle coil 1 also have respectively increasing and decreasing slot depths Ts, in order to accommodate the increase in the conductor 9 of a winding layer 2 - 5 in the course of the first or last turn 10/19 - 10 -
    The star blades 15 are preferably made of metal, in particular an aluminum alloy, and the receiving slots 20 therein are preferably formed by milling, z. CNC milling, manufactured. The compensating blades 18 are preferably made of plastic for the purpose of insulation, e.g. GRP (glass fiber reinforced plastic). The insertion slots 22 in the compensating blades 18 can be mitausgeformt in the plastic production of the compensating blades 18 or subsequently cut into it, stamped, milled, etc. Since here only a uniform slot depth Ta and a uniform slot width BA are required in the rule, the cutting of the insertion slots 22 can also be done manually, for example by means of a single template.
    The star blades 15 can be equipped with additional anchorages for the Abstandhalteieisten 6, for example, a plurality of holes 23, with which the Abstandshai telei st EN 6 can be screwed. Other anchors, e.g. Holes 24, can be provided for additional Zugbanda-gene (drawstrings), with which the axially opposite star blades 15 can be additionally braced.
    In the manufacture of Luftdrosseispule 1, the star blades 15 can be used for example in holder 25, which are mounted on the turntable of a winding machine distributed over the circumference / and then the Äusgleichsblät-ter 18 - or initially only the radially innermost compensation 11/19 11 page 18 - attached. After winding the first, innermost winding layer: 2, a set of Abstandshalt eieisten 6 distributed over the circumference And bolted to the star blades 18, then the next leveling sheets 18 (if not already done) attached to the star blades 15, then the next Winding layer 3 wound, etc., etc.
    It is understood that in simple embodiments for single-layer inductors, the star blades 15 may each have only a single Aufnähmeschlitz 20, in which case the receiving slots 20 different star blades 15 in a set of star blades have different slot depths Ts to the increase of the conductor 9 via to accommodate the circumference of the air throttle coil 1.
    The invention is not limited to the illustrated embodiments, but includes all variants and modifications that fall within the scope of the appended claims. 12/19
    权利要求:
    Claims (8)
    [1]
    12 Claims: 1. Winding layer pitch compensation for an air throttle coil (1) having at least two concentric, radially spaced apart winding layers (2-5), characterized by the combination of a first set of stripe-shaped star blades (15), each for radial arrangement below or above the winding layers (2 - 5) and along an edge (19) with at least one receiving slot (20) emanating from the edge (19), a second set of strip-shaped compensating sheets (18), each along one edge ( 21) are provided with at least one of the edge (21) outgoing insertion slot (22), wherein in each Aufnähmeschlitz (20) of a star blade (15) a compensating blade (18) is positively inserted and the star blade (15) while in its insertion slot ( 22) engages positively, and wherein the Schlltztlefen (Ts) at least two receiving slots (20) of the set of Stetnhlättern (15) and un are different.
    [2]
    2. Windlungsiagen inclination compensation according to claim 1, characterized in that each star blade (15) at least two spaced, from the edge (19) outgoing 13/19 13 receiving slots (20) whose slot depths (Ts) are unter'-different ,
    [3]
    3. Windlungslageh Steiguhgsausgleichieh according to claim 1 o-the 2, characterized in that: the star blades (15) made of metal and the receiving slots (20) are milled therein.
    [4]
    4. winding position inclination compensation according to one of claims 1 to 3, characterized in that the compensating blades (18) together with their Eiusteckschlitzen (22) are formed or cut from synthetic material.
    [5]
    5. Winding layer pitch compensation according to one of claims 1 to 4, characterized in that the slot widths (Bs) of at least two Aufpahmesehlitze (20) of a star blade (15) are different and the Äusgleichsbiättsr (18) correspondingly adapted different Picks (PA) have ,
    [6]
    6. winding layer pitch compensation according to one of claims 1 to 5, characterized in that a plurality of star blades (15) at its one ends (17) welded to a star: are.
    [7]
    7. Windungslagen-Steigungsausglsrsh according to one of claims 1 to 5, characterized in that the star blades (15) do not extend in their installed position in the central air space (16) of the air throttle coil (1).
    [8]
    8. Winding layer pitch compensation according to one of claims 1 to 7, characterized in that the star blades 14/19 14 14 the winding layers Zugbandagen aufwei- (15) anchors (23, 24) for between running Abstandshaiteleist s (6) or sen. 15/19
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    引用文献:
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    EP3796346A1|2019-09-23|2021-03-24|Siemens Energy Global GmbH & Co. KG|Compensation block for air choke coils and transformers|
    法律状态:
    2017-06-15| PC| Change of the owner|Owner name: SIEMENS AKTIENGESELLSCHAFT, DE Effective date: 20170511 |
    优先权:
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    ATA50179/2013A|AT514282B1|2013-03-15|2013-03-15|Winding layer pitch compensation for an air throttle coil|ATA50179/2013A| AT514282B1|2013-03-15|2013-03-15|Winding layer pitch compensation for an air throttle coil|
    EP14707078.3A| EP2973621B1|2013-03-15|2014-01-14|Winding layer pitch compensation for an air-core reactor|
    US14/771,571| US10777348B2|2013-03-15|2014-01-14|Winding layer pitch compensation for an air-core reactor|
    CA2902589A| CA2902589C|2013-03-15|2014-01-14|Winding layer pitch compensation for an air-core reactor|
    PCT/AT2014/050009| WO2014138762A1|2013-03-15|2014-01-14|Winding layer pitch compensation for an air-core reactor|
    BR112015021881-4A| BR112015021881B1|2013-03-15|2014-01-14|pitch compensation of the winding layer of an air core coil|
    CN201480016120.9A| CN105027233B|2013-03-15|2014-01-14|Winding layers gradient compensation device for air reactor|
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