EP2304744B2 - Bobine d'arret pour reseaux de distribution d'energie electrique avec emissions sonores diminuees - Google Patents

Bobine d'arret pour reseaux de distribution d'energie electrique avec emissions sonores diminuees Download PDF

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Publication number
EP2304744B2
EP2304744B2 EP09771828.2A EP09771828A EP2304744B2 EP 2304744 B2 EP2304744 B2 EP 2304744B2 EP 09771828 A EP09771828 A EP 09771828A EP 2304744 B2 EP2304744 B2 EP 2304744B2
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EP
European Patent Office
Prior art keywords
winding
winding layers
inductance coil
coil
connecting brackets
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EP09771828.2A
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German (de)
English (en)
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EP2304744B1 (fr
EP2304744A1 (fr
Inventor
Alexander Grisenti
Josef Eder
Johann MÜLLEDER
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Coil Holding GmbH
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Coil Holding GmbH
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    • 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
    • H01F27/33—Arrangements for noise damping
    • 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 choke coil, in particular a choke coil without an iron core for use in electrical power supply networks, with at least two cylindrical winding layers which are arranged concentrically with respect to a central coil axis and are electrically connected in parallel, and with at least one means for reducing or minimizing during operation of the choke coil resulting noise emissions, as specified in claim 1.
  • the U.S. 4,477,792 describes a modular reactor for electrical power transmission networks.
  • a plurality of coil formers are assembled in a modular manner, with the individual coil modules being able to be lined up in a row in the axial direction or in the radial direction in relation to a coil center axis of the ultimate inductor coil.
  • the individual coil modules can be electrically connected in parallel or in series.
  • the aim of this modular structure is to provide a choke coil which has a high inductance and a high current carrying capacity.
  • a plurality of the coil modules arranged radially or axially next to one another are electrically connected in parallel and the maximum current carrying capacity of the inductor coil is evenly divided between the individual coil modules.
  • each of the coil modules to be loaded as evenly as possible is loaded with approximately 12.5% of the total current of the choke coil.
  • the number of turns of the radially outermost coil module is selected to be larger than the number of turns of the immediately adjacent coil module.
  • the number of turns of the remaining coil modules, starting from the radially innermost coil module is steadily reduced compared to the number of turns of the coil modules lying radially further out.
  • the Figures 1 and 2 show the basic structural design of such winding layers 1 or coil windings constructed therewith.
  • the holding elements 2 arranged in the two distal end sections of the coil are held together by a tensioning structure, for example by a number of tension elements 3 made of impregnated glass fibers, which are attached along the winding.
  • Insulation elements 4 are usually fitted between the holding elements 2 and the coil or winding ends, especially when the holding elements 2 are electrically conductive.
  • the winding layers 1 arranged concentrically within one another are spaced apart in the radial direction, preferably by further insulating elements 5, for example electrically insulating gap strips, in order to produce vertical gaps for the natural air cooling of the entire inductor coil winding.
  • further insulating elements 5 for example electrically insulating gap strips, in order to produce vertical gaps for the natural air cooling of the entire inductor coil winding.
  • the extent to which conductors or bundles of conductors 6 made from a plurality of isolated individual conductors are used depends on the expected eddy current losses, which must be kept within economic limits.
  • the number of turns of the winding layers 1 or the electrical coils to be produced are determined in such a way that both the desired inductance is achieved and the desired current and operating temperature distribution over the winding layers 1 connected in parallel—see FIG 1 - is achieved. This requirement results in different numbers of turns, which decrease predominantly from the inside outwards, for the winding layers 1 that are electrically connected in parallel.
  • An axial voltage gradient that is as uniform as possible in all winding layers 1 and thus the avoidance of significant voltage differences between the opposite turns of adjacent winding layers 1 is ensured by achieving the same heights or the same axial lengths of the individual winding layers 1, i.e. by maintaining axial winding layer heights H that are as equal as possible. This is achieved by adapting the height GH1, GH2, GH3 of the conductor or conductor bundle 6 measured in the axial direction of the winding layers 1 to the different numbers of turns of the winding layers 1 electrically connected in parallel.
  • the height GH1, GH2, GH3 of the conductor or conductor bundle 6 measured in the axial direction of the winding layers 1 in the individual winding layers 1 is also referred to as pitch, which defines the dimensions of the conductor or conductor bundle 6 in the direction of the winding or coil axis. Because the number of turns decreases predominantly from the inner winding layers 1 to the outer winding layers 1, the conductors or conductor bundles 6 in the outer winding layers 1 have larger dimensions in the axial direction.
  • the conductors or conductor bundles 6 of the outer winding layers 1 have greater heights GH2, GH3 in a direction parallel to the coil longitudinal or central axis 7 than the heights GH1 of the conductors or conductor bundles 6 of the inner winding layer 1 of the coil.
  • the adjustment of the axial height GH1, GH2 or GH3 of the conductor or the conductor bundle 6 to the respectively required conductor or conductor bundle 6 with an approximately or largely rectangular cross-sectional shape takes place by pressing a round conductor or a rope-like conductor material.
  • the required dimensions of the conductors or the conductor bundle 6, in particular the previously mentioned pitches GH1, GH2, GH3, are calculated in accordance with the number of turns for the concentrically arranged winding layers 1 determined in the course of the electrical or thermal design of the choke coil.
  • the increase due to the electrical external insulation of the conductor or conductor bundle 6 to be subsequently applied is taken into account when determining the required dimensions.
  • the conductors which have a circular cross-section in their original state, or the rope-like conductor bundle strands, are formed or pressed to a largely rectangular cross-sectional shape with the fixed, pre-calculated dimensions.
  • the outer insulation is then applied to these conductors or conductor bundles applied, which is usually formed by high-temperature resistant insulation films and / or impregnable fabric tapes.
  • Air choke coils ie choke coils with an air core or without an iron core
  • Air choke coils are mainly used in electrical systems for power transmission and power distribution, as well as in power supply systems of industrial plants. Due to the increasing density and meshing of electrical energy supply networks, electrical medium and high-voltage systems have to be erected more and more often in the immediate vicinity of residential areas, which entails an increasing demand for particularly low-noise choke coils. This is also increasingly reflected in the legal requirements regarding permissible noise emissions from electrical equipment.
  • a property of the choke coils known from the prior art is, among other things, that they emit noise, depending on the type power and current spectrum, especially when loaded with high alternating currents or with a combined load with high direct current and alternating current, which is emitted by people, especially in those adjacent to the choke coil installation Living areas, is perceived as disturbing.
  • the problem of noise emissions is mainly countered by ensuring that when designing the inductance coil, the frequencies of specific, pronounced oscillation forms do not coincide with the frequency spectrum of the essential exciting forces. This avoids unfavorable increases in noise due to mechanical resonance vibrations. If the overall noise level is still too high, further measures are taken to reduce the noise emissions from the choke coil. This can be, for example, a strategically favorable positioning of the choke coil within the high-voltage system.
  • a conventional measure is to encapsulate the choke coil with as little noise as possible, which can have a negative effect on the required air cooling. It is also known, as in 3 was indicated schematically to assign the choke coils a soundproof housing 8 or to arrange the choke coils in a separate building 9. Also a formation of noise barriers 10 next to the inductors represents a conventional measure.
  • openings 13, 14 in a soundproof housing 8 for carrying out the electrical connections must have the necessary or at least necessary voltage clearances 15, 16, which can lead to a significant deterioration in the efficiency of the sound shielding effect.
  • the object of the invention is to create choke coils with reduced noise emissions or the lowest possible noise emissions, with the measures for reducing or minimizing the noise emissions being as economical and effective as possible.
  • the object of the invention is achieved by a choke coil according to claim 1.
  • the advantage here is that those noise emissions which emanate from the support or holding clement for mechanical stabilization or electrical connection of the winding layers are significantly reduced.
  • a vibration excitation in a holding or connecting element according to the invention is reduced, since lateral buckling of the legs of the bracket-like connecting element is eliminated or minimized.
  • This buckling or vibration of the arms of a conventional holding element is primarily caused by the pump-like movements of the winding layers during operation of the choke coil.
  • the holding elements which represent a not inconsiderable source of noise and are also referred to as winding columns in practice, are therefore replaced by the specified connecting bracket, which emits comparatively less noise, or substituted by connecting brackets, which cause less sound power.
  • the configuration according to claim 2 avoids diametrically or rectilinearly running connections over the entire cross section of the inductance coil.
  • the angled connecting brackets can on the one hand fulfill the desired electrical connections between the winding layers and also at the lowest possible level or contribute to reduced noise emissions after the respective legs of the connecting brackets do not or hardly buckle in their central sections or vibrate relatively little.
  • Claim 3 specifies a bracket shape that is advantageous in terms of statics and possibly installation-related aspects.
  • the design according to claim 4 also allows the requirements for a connection or electrical tapping of various fractions of a complete winding to be taken into account without any problems. At the same time, the required mechanical stability of the choke coil is achieved and the retention of the cylindrical or circular shape of the choke coil is ensured.
  • the embodiment in claim 5 has the advantage that the buckling of the legs of the connecting brackets due to electromagnetic pumping or vibration movements of the choke coil is eliminated or greatly reduced. In particular, as a result, a mechanical vibration of the connecting brackets or their legs is reduced to a significant extent or avoided altogether.
  • Tensile stress or compressive stress-related vibrations of the connecting bracket’s legs which can be different due to production and occur in different ways, for example due to temperature changes during operation of the choke coil, have no or only marginal influence on the vibration behavior of these connecting brackets due to the configuration according to claim 6. In particular, this creates particularly low-oscillation or low-vibration connecting brackets.
  • the configuration according to claim 7 is extremely low in vibration and noise.
  • operational thermal expansions can be easily compensated for by such a construction. Temperature-influenced vibrations and noise sources or sound developments, which were previously caused by the front-side holding or connecting elements, are largely avoided as a result.
  • FIG. 4 shows a schematic longitudinal section through a choke coil with several measures to reduce the noise emissions that occur during active operation, ie when current flows through the choke coil.
  • the measures described for reducing noise emissions can be used in combination and can also be used independently.
  • the individual measures for noise reduction or noise suppression can each represent independent inventive solutions.
  • This choke coil has a plurality of winding layers 1 which are arranged concentrically with respect to its coil center axis 7 and are electrically connected in parallel.
  • a choke coil is also referred to as a multi-layer choke coil, with up to 20 winding layers 1 or individual coils being able to be formed in practice. At least two such cylindrical winding layers 1 form a choke coil, the diameter of the concentrically arranged winding layers 1 being dimensioned in such a way that between the lateral surfaces of the individual winding layers 1, i.e. between the individual coil windings, there are defined free spaces or gaps 17 for air to flow around the winding layers 1, are designed in particular as air flow channels.
  • the winding layers 1 of the choke coil are distributed over the circumference of the winding layers or spaced apart from one another by means of insulation elements 5 - 2 - Mutually supported in the radial direction.
  • insulation elements 5 - 2 - are often also referred to as gap strips.
  • the current distribution over the winding layers 1 connected in parallel has hitherto been selected in such a way that a largely uniform temperature distribution over the individual winding layers 1 of the multi-layer inductor is achieved.
  • the comparatively better cooling properties of the innermost and in particular the outermost winding layer 1 of the inductor were thereby taken into account accordingly.
  • the outermost winding layer 1 and/or the innermost winding layer 1 therefore carried a higher current than the remaining winding layers 1, ie the adjacent or intermediate winding layers 1 or individual coils.
  • the desired current distribution between the parallel-connected winding layers 1 is controlled essentially via the number of turns of the individual winding layers 1, as is known per se.
  • At least the outermost winding layer 1 and, if necessary, the innermost winding layer 1 are in the form of an acoustic shield winding 18 or 18', which carries comparatively less current in comparison to the winding layer adjacent in the direction of the coil central axis 7 or in comparison to the closest winding layer 1 has to transfer.
  • At least the outermost winding layer 1 of the choke coil thus forms a current-carrying, acoustic shielding winding 18 .
  • this shielding winding 18 is dimensioned such that it is provided or designed to transmit a current intensity that is only a fraction of the current intensity that is to be transmitted by the immediately adjacent or nearest winding layer 1 .
  • the innermost winding layer 1 of the choke coil is also designed as a quasi-inner acoustic shield winding 18'.
  • this inner acoustic shielding winding 18' transmits only a fraction of the current intensity which is to be transmitted by the adjacent winding layer 1, i.e. by the winding layer 1 which is comparatively larger in diameter.
  • the choke coil is designed such that the outermost winding layer 1 forms an outer acoustic shield winding 18 and the innermost winding layer 1 of the multi-layer choke coil composed of several individual coils forms an inner acoustic shield winding 18'.
  • the shield windings 18, 18' are thus formed by electrical winding layers 1 which are structurally largely unchanged, which are also current-carrying or which are also used for current transmission parallel to the inner or central winding layers 1 of the inductor. At least the outermost and possibly the innermost winding layer 1 of the choke coil thus forms an acoustic shield winding 18, 18' on the choke coil, to which current and voltage are applied.
  • the acoustic shield winding 18, 18' represents a sound barrier for sound emissions which are generated or emitted by the inner winding layers 1 or by the inner partial or individual coils of the choke coil.
  • an inner lateral surface 19 of the shield winding 18 and, if applicable, an outer lateral surface 19' of an inner shield winding 18' - with reference to the coil center axis 7 - act as a sound barrier, with the acoustic, current-carrying shield winding 18, 18' itself, due to the relatively low currents or power transmission, causes only a relatively small amount of noise or represents a marginal and relatively uncritical source of noise.
  • the acoustic shielding winding 18 is dimensioned in such a way that it is provided or designed to transmit a current intensity that is between 0.1% and a maximum of 50% of the current intensity that is to be transmitted from the winding layer 1 adjacent in the direction of the coil central axis 7 .
  • An advantageous dimensioning or current distribution within the choke coil is also given when the current intensity to be transmitted by the acoustic shielding winding 18 and/or 18' is between 0.1% and 5% of the current intensity which the choke coil as a whole, i.e. from all Winding layers 1, in particular of the shield winding 18, 18' and of the other winding layers 1, is to be transmitted.
  • the outer shield winding 18 and the optionally additionally formed inner shield winding 18' carry relatively low currents in comparison to the adjacent winding layers 1 and thus offer an effective effect as an acoustic shield winding 18 and/or 18'.
  • the same or at least approximately the same voltage potentials are present on the shield winding 18 and/or 18' as on the immediately adjacent winding layers 1, which are electrically connected in parallel.
  • the acoustic shielding winding 18, 18' has a higher electrical impedance Z, i.e. a higher AC resistance, than the winding layer 1 adjacent in the direction of the coil central axis 7.
  • a further measure for minimizing or reducing noise emissions consists in mechanically decoupling the cylindrical lateral surface 19, 19' of the acoustic shielding winding 18, 18' from the nearest cylindrical lateral surface 20 of the adjacent winding layer 1 or the lateral surfaces 19, 19' of the to isolate the acoustic shield winding 18, 18' from the cylindrical lateral surface 20 of the adjacent winding layer 1 in terms of vibrations.
  • vibrations or vibration-damping connections for example using elastomeric elements.
  • a continuous air gap or gap 17 with a preferably uninterrupted, hollow-cylindrical shape is formed.
  • a radial distance 21, 21' between the lateral surface 19, 19' of the acoustic shielding winding 18, 18' and the lateral surface 20 of an adjacent winding layer 1 is larger than a radial distance 22 between two adjacent winding layers 1 arranged concentrically to the acoustic shielding winding 18, 18'.
  • the distance 22 is usually around 2 to 4 cm, preferably around 3 cm. Ie that the insulation elements 5 - according 2 - Between the inner winding layers 1 of the choke coil, have a support width or strip width of usually approx. 3 cm.
  • the individual winding layers 1 or the at least one shield winding 18, 18' are each designed as hollow cylinders.
  • the expression lateral surface or cylindrical lateral surface 19, 19', 20 means the inner and/or outer lateral surfaces of these hollow or hollow-cylindrical bodies.
  • At least one acoustic shielding winding 18, 18' i.e. at least the outermost and possibly the innermost winding layer 1 of the choke coil, has a hollow-cylindrical or polygonal extension section running in the axial direction on at least one end 23, 23'.
  • This extension section 23 , 23 ′ which has a hollow-cylindrical cross-section or a hollow-body-like polygon cross-section, adjoins at least one front end of the outermost and/or innermost winding layer 1 .
  • this extension section 23, 23' represents a structural extension of the current-carrying acoustic shielding winding 18, 18' in the axial direction of the choke coil.
  • extension section 23, 23' protrudes beyond the front ends of the winding layers 1 in the axial direction.
  • the extension sections 23, 23' thus represent a kind of extension of the electrical section of the inductor coil.
  • the hollow-cylindrical extension section 23, 23' is preferably made of electrically insulating material, for example glass-fibre-reinforced plastics or resin-impregnated strips, which are wound into a hollow-cylindrical shape.
  • the extension section 23, which is preferably formed at least on the outermost shield winding 18, is therefore preferably not live.
  • a hollow-cylindrical, electrically insulating and therefore non-current-carrying extension section 23' is also formed on the inner shield winding 18', in particular on the innermost winding layer 1.
  • the hollow-cylindrical extension section 23 and/or 23' forms an electrically non-conductive end ring 24 and/or 24' on the choke coil, which is attached to at least one end of the electrically conductive section of the choke coil, in particular to at least one end of the shield winding 18, 18'. connects.
  • An end ring 24, 24' is preferably provided at least at the upper front end of the shield winding 18, 18', in particular at the upper end of the outermost and/or innermost winding layer 1.
  • an axial length or the winding layer height H of the current-carrying section of the acoustic shielding winding 18, 18' corresponds at least approximately to an axial length or winding layer height H of the winding layers 1 electrically connected in parallel.
  • the outer and inner acoustic shielding winding 18, 18' each have an outer and inner hollow-cylindrical or polygonal extension section 23, 23' in plan view. These respective extension sections 23, 23' extend the outer and inner shield windings 18, 18' in the axial direction in relation to the front ends of the winding layers 1 arranged between them.
  • an acoustic near-field zone is thus formed, in which the sound occurring at the front ends of the winding layers 1 is reduced or damped.
  • sound waves which arise in the gaps 17, ie in the air gaps between the winding layers 1 are deflected in the axial direction and guided to the front ends of the winding layers 1.
  • the mixing and extinction zone 25 for the sound waves is formed in these end regions, in which at least one extension section 23, 23' is formed.
  • the mixing and extinction zone 25 due to anti-phase sound waves in the area of the mixing and extinction zone 25, at least some sound waves are canceled or compensated, which reduces the sound emission of the inductance coil.
  • the compensation or extinction effect of the mixing and extinction zone 25 can be increased by forming both an outer extension section 23 and an inner extension section 23', since this results in a spatially delimited or defined mixing and extinction zone 25.
  • such a mixing and extinction zone 25 also occurs if an extension section 23 is formed only on the outer shield winding 18 or winding layer 1 .
  • passive and/or reactive sound-absorbing elements 26 for example blocks or plate elements made of foamed plastic or fibers, such as fleece or Rockwool, trained.
  • the sound absorbing elements 26 can also be formed by knitted packages, fiber mats and/or sound absorber panels with a relatively high mass, such as tar panels.
  • the sound absorbing elements 26 are preferably arranged at a distance from the front ends of the winding layers 1 in the axial direction.
  • the mixing and extinction zone 25 for axially exiting, anti-phase sound waves is formed in the free space between the sound absorbing elements 26 and the front ends of the winding layers 1 .
  • the outwardly directed sound radiation of the outer winding layer 1 is reduced in that it is designed as a mechanically decoupled or vibration-insulated shielding winding 18 and, compared to the winding layer 1 adjacent in the direction of the coil central axis, carries a relatively low current, as a result of which it itself is hardly excited to vibrate.
  • the current flow in the shielding winding 18 or 18′ results in a controlled voltage reduction, as a result of which this has approximately the same voltage potential as the adjacent winding layer 1, which eliminates the risk of voltage flashovers. Since the ends of the shield winding 18 or 18' have the same electrical potential as the holding elements 2 or the electrical connections of the choke coil, the electrical connection of the choke coil is unproblematic despite the acoustic shield winding 18 or 18'.
  • FIGS Figures 6a to 6c are known from the prior art examples of four-armed holding elements 2, as based on the Figures 1 and 2 have been described, illustrated. In practice, these holding elements 2 can also have only two or three or more than four arms running in a star shape. In particular, holding elements 2 with up to twelve arms arranged in a star shape are known from the prior art. These holding elements 2, which are often also referred to as winding stars, have, among other things, the task of giving the inductor sufficient mechanical stability or robustness.
  • the holding elements 2 often also serve to distribute the total current to be fed via the inductor coil to the winding layers 1 connected in parallel.
  • the holding elements 2 are usually arranged on the top and bottom of the choke coil, as shown in 1 is evident.
  • a holding element 2 arranged on the upper side and on the lower side of the inductor coil thus usually also forms the respective electrical connections for supplying and discharging the coil current, as is shown in FIGS Figures 6a to 6c was schematically illustrated by ring symbols.
  • the holding elements 2 are therefore star-shaped structures, which are often formed from an aluminum profile.
  • the individual arms of these star-shaped holding elements 2 can also be used to achieve the desired or required current distribution between the winding layers.
  • fractions of a complete turn can also be tapped off or made available via the arms of the holding element 2 .
  • certain or selected arms of a holding element 2 are used in order to be able to activate fractions of a turn in the individual winding layers connected in parallel. For example, according to the embodiment according to Figure 6b 25%, 50% or 75% of the last turn in the various winding layers 1 can be used.
  • the individual winding layers 1 are electrically connected in the embodiment according to FIG Figure 6a each at a uniform position in relation to the circumference of the choke coil. The same applies to the exemplary embodiment according to Figure 6c .
  • the electrical connection between the individual winding layers 1 and the holding element 2 has been illustrated by symbolic nodes.
  • insulation elements 4 can be formed, which can also have a mutual support or stabilization function, as is based on FIG Figures 1, 2 was described.
  • an electrically conductive holding arm 2 is preferably supported with the interposition of at least one electrical insulation element 4 against the front ends of the winding layers 1, as is the case above all in 2 is illustrated schematically.
  • the arms of conventional holding elements 2 are connected to one another either directly or via a central hub 27, in particular welded or screwed to one another.
  • a central hub 27 in particular welded or screwed to one another.
  • these conventional holding elements 2 on the top and bottom of the coil can represent a disruptive or problematic source of noise.
  • these noise sources act independently of one another and produce a disadvantageous, locally different noise spectrum.
  • the applicant has recognized that the known constructions of holding elements 2 are exposed to alternating tensile and compressive stresses due to the pump-like movement of the inductance coil through which alternating current flows.
  • these arms buckle alternately laterally, as a result of which they vibrate accordingly and can be a strong or annoying source of noise.
  • the arms of the holding elements 2 can represent a type of membrane which generates unwanted noise.
  • the holding element 2 is also used for current distribution, then different mechanical forces occur in the different arms, which are caused on the one hand by the different current intensities and on the other hand by the different intensities of vibration excitation.
  • the rigid connection of the individual arms in the center of the star-shaped holding element 2 causes forces or vibrations to also be transmitted to other arms, as a result of which these are also excited to vibrate and also generate noise.
  • the applicant has a relatively economical and effective.
  • Solution for reducing or minimizing the noise emissions created starting from the holding elements 2, as is based on the Figures 7a to 7c is exemplified.
  • the configurations according to Figures 7a to 7c can represent an independent inventive or inventive solution.
  • the holding element 2 is designed in several parts.
  • at least two structurally independent holding elements 2 are designed on the axial front ends of the inductor coil such that they are not connected to one another in the central area of the inductor coil, ie in the area around the central axis 7 of the coil.
  • the individual winding layers 1 of the choke coil can represent a kind of pulsating tube with correspondingly high current flows, which transmits mechanical vibrations to the holding elements 2 .
  • two legs 29, 30 each form a mechanical and/or electrical connecting clip 31 for at least one winding layer 1. It is essential that the two legs 29, 30 of such a connecting bracket 31 run at an angle to one another, i.e. that an angle 32 is enclosed between the two legs 29, 30 of the connecting bracket 31.
  • This angle 32 between the two legs 29, 30 of the connecting bracket 31, which assumes electrical and/or mechanical functions, is less than 180°, preferably 90°.
  • This angle 32 essentially depends on which stabilization effect is to be achieved by means of the connecting bracket 31 and/or which partial angles or partial sections of a complete turn of the winding layers 1 are required. Especially when it is necessary to achieve relatively small partial turns, the angle 32 can also be less than 90°.
  • At least one angled connecting bracket 31 is formed on at least one axial end face of the choke coil the legs 29, 30 of this connecting bracket 31 extend at a predetermined angle 32 to one another, which is less than 180°, when the choke coil is viewed from above.
  • the connecting bracket 31, which fulfills a mechanical support function and/or an electrical conduction function does not extend diametrically or continuously over the inductor coil, which is circular or hollow-cylindrical in plan view. Rather, the at least one electrical and/or mechanical connecting bracket 31 is angled in such a way that a diametral, straight extension across the cross-sectional area of the inductor is avoided.
  • the connecting bracket 31, which is formed at least once and preferably several times, defines or delimits the geometric shape of a circular segment in a plan view of the front end of the inductance coil.
  • the connecting bracket 31 is intended to fulfill an electrical connecting function between the electrically parallel, concentrically arranged winding layers 1, a plurality of connecting brackets 31 distributed within the circumference of the inductance coil are formed. Selected distal ends of the individual connecting brackets 31 are provided for the electrical connection to selected winding layers 1 . It is expedient here if the individual connecting brackets 31 are not mechanically connected to one another in the area around the central axis 7 of the coil, in particular run independently of one another and do not form a central or common hub 27 . According to an advantageous embodiment, the individual connecting brackets 31 are mechanically and electrically connected to one another only in the distal end sections, in particular in the area of the winding layers 1 .
  • a defined angle can also be provided between immediately adjacent legs 29, 30 of two adjacent connecting brackets 31, as is shown in Figure 7b was indicated with dashed lines.
  • the legs 29, 30 preferably make contact with one another at the front ends or near the front ends, or the legs 29, 30 merge into one another in the region of the winding layers 1.
  • Connection brackets 31 that are not required for power distribution can be omitted, even if they are not required mechanically, as shown in Figures 7b, 7c was illustrated.
  • the forces arising from the current flow and/or from the mechanical vibrations of the winding layers 1 in one connecting bracket 31 are not transmitted to the other connecting brackets 31, or only to a greatly reduced extent.
  • the individual connecting brackets 31 of the inventive holding element 2 are mechanically and/or electrically connected to one another only in the area of the winding layers 1 or the entire winding of the inductor coil. Vibrations between the distal ends of the connecting bracket 31 and the winding layers 1 are suppressed or almost non-existent due to the rigid connection of the distal ends of the connecting bracket 31 or the connecting brackets 31 to the winding layers 1 .
  • the individual connecting brackets 31 are preferably electrically insulated from one another in the area between their distal ends, so that no circulating current can form as a result of electromagnetic induction.
  • the connecting brackets 31 are preferably clamped only at the winding or front end sections, i.e. connected to the winding layers 1. As a result, no power transmission can take place between the individual connecting brackets 31, as a result of which this construction is relatively low in vibration and noise.
  • thermal expansions can be easily compensated by this construction of the holding element 2 consisting of at least one angled connecting bracket 31 .
  • the exemplary embodiments show possible design variants of a low-noise choke coil, it being noted at this point that the invention is not limited to the specifically illustrated design variants of the same, but rather that various combinations of the individual design variants are also possible with one another and these possible variations are based on the teaching of technical action through concrete Invention is within the skill of those skilled in the art in this technical field.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Coils Of Transformers For General Uses (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)

Claims (7)

  1. Bobine d'arrêt, en particulier bobine d'arrêt sans noyau de fer destinée à être utilisée dans des réseaux de distribution d'énergie électrique, avec au moins deux couches d'enroulement (1) cylindriques, disposées de façon concentrique par rapport à un axe central de bobine (7) et montées électriquement en parallèle, avec au moins un élément de retenue (2) pour la stabilisation mécanique et éventuellement pour le raccordement électrique des couches d'enroulement (1), et avec au moins un moyen destiné à réduire ou à diminuer des émissions sonores apparaissant lors du fonctionnement de la bobine d'arrêt, caractérisée en ce que l'élément de retenue (2) est formé par un étrier de raccordement (31) constitué de façon coudée, disposé sur au moins une extrémité frontale axiale de la bobine d'arrêt, et en ce que cet étrier de raccordement (31) est formé par deux branches (29, 30) orientées en faisant un angle l'une par rapport à l'autre et s'étendant au moins approximativement de façon radiale par rapport à l'axe central de bobine (7).
  2. Bobine d'arrêt selon la revendication 1, caractérisée en ce que l'étrier de raccordement (31) est constitué de façon électriquement conductrice et est prévu pour le montage en parallèle électriquement de couches d'enroulement (1), un angle (32) formé entre les deux branches (29, 30) de l'étrier de raccordement (31) étant inférieur à 180°, de préférence égal à 90°.
  3. Bobine d'arrêt selon la revendication 1, caractérisée en ce que, en vue de dessus, l'étrier de raccordement (31) définit sur l'extrémité frontale de la bobine d'arrêt la forme géométrique d'un segment de cercle.
  4. Bobine d'arrêt selon la revendication 1, caractérisée en ce que plusieurs étriers de raccordement (31) disposés de façon répartie à l'intérieur de la circonférence de la bobine d'arrêt sont constitués, et en ce qu'il est prévu des extrémités distales sélectionnées des différents étriers de raccordement (31) pour le raccordement électrique à des couches d'enroulement (1) sélectionnées.
  5. Bobine d'arrêt selon la revendication 1, caractérisée en ce que plusieurs étriers de raccordement (31) sont constitués et en ce que les différents étriers de raccordement (31) sont situés respectivement indépendamment les uns des autres dans la zone proche autour de l'axe central de bobine (7) ou dans la zone du centre des couches d'enroulement (1) circulaires en vue de dessus, et ne sont pas raccordés mécaniquement les uns aux autres, et en particulier ne constituent pas de moyeu central (27).
  6. Bobine d'arrêt selon la revendication 1, caractérisée en ce que plusieurs étriers de raccordement (31) sont constitués et en ce que les différents étriers de raccordement (31) ne sont raccordés les uns aux autres mécaniquement et électriquement que dans les tronçons extrêmes distaux, en particulier dans la zone des couches d'enroulement (1).
  7. Bobine d'arrêt selon la revendication 1, caractérisée en ce que plusieurs étriers de raccordement (31) sont constitués, et en ce que les branches (29, 30) les plus proches les unes des autres de deux étriers de raccordement (31) voisins sont au moins approximativement parallèles et sont disposées à distance les unes des autres de telle sorte que des branches (29, 30) immédiatement voisines sont découplées mécaniquement les unes des autres.
EP09771828.2A 2008-06-30 2009-06-30 Bobine d'arret pour reseaux de distribution d'energie electrique avec emissions sonores diminuees Active EP2304744B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0103508A AT507024B1 (de) 2008-06-30 2008-06-30 Drosselspule für elektrische energieversorgungsnetze mit reduzierten schallemissionen
PCT/AT2009/000259 WO2010000005A1 (fr) 2008-06-30 2009-06-30 Bobine d'arrêt pour réseaux de distribution d'énergie électrique avec émissions sonores diminuées

Publications (3)

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EP2304744A1 EP2304744A1 (fr) 2011-04-06
EP2304744B1 EP2304744B1 (fr) 2013-11-20
EP2304744B2 true EP2304744B2 (fr) 2022-11-30

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US (1) US8339234B2 (fr)
EP (1) EP2304744B2 (fr)
CN (1) CN102203888B (fr)
AT (2) AT507928B1 (fr)
BR (1) BRPI0913649B1 (fr)
CA (1) CA2729020C (fr)
WO (1) WO2010000005A1 (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0410866D0 (en) 2004-05-14 2004-06-16 Chiron Srl Haemophilius influenzae
DE102011000126A1 (de) 2011-01-13 2012-07-19 Diana Manghofer Verbrennungskraftmaschine mit Einspritzdüse
WO2014186888A1 (fr) * 2013-05-21 2014-11-27 Trench Limited Cloison antibruit integree pour une inductance a noyau d'air
JP6173237B2 (ja) * 2014-02-25 2017-08-02 三菱電機株式会社 静止誘導機器
US20170092408A1 (en) 2015-09-28 2017-03-30 Trench Limited Composite cradle for use with coil of air core reactors
DE102017130182A1 (de) * 2017-12-15 2019-06-19 Maschinenfabrik Reinhausen Gmbh Drossel und Prüfanordnung zur Durchführung von Hochspannungsprüfungen
EP4022656A4 (fr) 2019-08-28 2023-10-04 Comet Technologies USA, Inc Bobines basse fréquence haute puissance
EP4070347A1 (fr) * 2019-12-04 2022-10-12 Siemens Energy Global GmbH & Co. KG Dispositif de refroidissement pour bobine d'arrêt électrique
CN111785493B (zh) * 2020-07-30 2024-06-18 上海华虹宏力半导体制造有限公司 射频线圈装置及多晶硅蚀刻机台
CN112201446A (zh) * 2020-10-09 2021-01-08 四川天邑康和通信股份有限公司 一种用于路由器中的贴片式变压器
RU210703U1 (ru) * 2022-02-04 2022-04-28 Сергей Александрович Моляков Узел крепления изолирующей рейки крестовины
RU210272U1 (ru) * 2022-02-04 2022-04-05 Сергей Александрович Моляков Узел крепления изолирующей рейки крестовины с ограничительными торцевыми элементами
RU210737U1 (ru) * 2022-02-10 2022-04-28 Сергей Александрович Моляков Узел крепления изолирующей рейки крестовины со стопорной пластиной
CN115483010B (zh) * 2022-09-22 2024-07-30 国网河北省电力有限公司沧州供电分公司 变压器消声降噪系统及降噪方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE577650C (de) † 1930-05-09 1933-06-02 Aeg Magnetspule fuer grosse Stromstaerken, welche aus mehreren konzentrisch zueinander angeordneten Teilspulen mit gemeinsamen Zu- oder Ableitungen besteht
GB640462A (en) † 1946-06-25 1950-07-19 British Thomson Houston Co Ltd Improvements in and relating to electromagnetic induction apparatus
US3309639A (en) † 1965-05-12 1967-03-14 Westinghouse Electric Corp Sound reducing means for electrical reactors
US3991394A (en) † 1975-12-17 1976-11-09 General Electric Company Helical inductor for power lines and the like
EP0092018A1 (fr) † 1982-04-21 1983-10-26 Spezielektra Esslinger K.G. Réactance, en particulier réactance isolée de l'air sans noyau magnétique
WO2002063605A1 (fr) † 2001-02-05 2002-08-15 Abb Technology Ag Dispositif et procede d'attenuation acoustique active de bruit se propageant a partir d'un composant de forme essentiellement cylindrique et utilisation de ce dispositif

Family Cites Families (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE322440C (fr) * 1914-02-05 1920-07-02 Westinghouse Electric Company, Limited
US1706193A (en) * 1928-06-11 1929-03-19 Gen Electric Transformer
US2422037A (en) * 1942-05-16 1947-06-10 Gen Electric Electric induction apparatus
US2686905A (en) * 1950-02-15 1954-08-17 Oerlikon Maschf High-voltage transformer
US3102246A (en) * 1958-12-17 1963-08-27 Mc Graw Edison Co Noise reducing means for transformer
US3175173A (en) * 1961-06-12 1965-03-23 Gen Electric Shielded electrical induction apparatus
US3362001A (en) * 1966-07-28 1968-01-02 Allis Chalmers Mfg Co Coreless iron shunt reactor having high dielectric strength insulation
US3538473A (en) * 1968-05-17 1970-11-03 Gen Electric Stranded winding for high current electric apparatus
DE2246235B2 (de) * 1972-09-21 1978-08-24 Transformatoren Union Ag, 7000 Stuttgart Trockentransformator
CA965166A (en) * 1972-12-28 1975-03-25 Trench Electric Limited Air core duplex reactor
AT340716B (de) 1974-06-18 1977-12-27 Vmw Ranshofen Berndorf Ag Wasserdruck-spritzgerat
DE3138909A1 (de) * 1981-09-30 1983-04-14 Transformatoren Union Ag, 7000 Stuttgart Transformator mit vollstaendig in giessharz eingebetteten wicklungen
US4477792A (en) 1982-01-29 1984-10-16 Westinghouse Electric Corp. Modular power system reactor
CN2055288U (zh) * 1989-10-21 1990-03-28 北京科学技术开发交流中心 干式空心并联筒式电抗器
US5481191A (en) * 1990-06-29 1996-01-02 Advanced Nmr Systems, Inc. Shielded gradient coil for nuclear magnetic resonance imaging
US5150046A (en) * 1990-12-17 1992-09-22 Goldstar Electric Machinery Co. Noise-shielded transformer
GB9306901D0 (en) 1993-03-31 1993-05-26 Unilever Plc Liquid cleaning products
JPH0917657A (ja) * 1995-06-29 1997-01-17 Canon Inc 変圧器およびスイッチング電源装置
JP2000040626A (ja) * 1998-07-24 2000-02-08 Matsushita Electric Ind Co Ltd チョークコイル
CN2489440Y (zh) * 2001-07-04 2002-05-01 秦皇岛市电力电抗器制造有限公司 空心限流电抗器
US7141974B2 (en) * 2003-08-25 2006-11-28 William A Edelstein Active-passive electromagnetic shielding to reduce MRI acoustic noise
US8203341B2 (en) * 2003-09-19 2012-06-19 Xbo Medical Systems Co., Ltd. Cylindrical bi-planar gradient coil for MRI
AT501074B8 (de) 2004-09-03 2007-07-15 Coil Innovation Gmbh Verfahren und vorrichtung zum herstellen einer spulenwicklung
TWI306327B (en) * 2005-12-30 2009-02-11 System General Corp An energy transfer device for reducing a conductivity electromagnetic interference and manufacturing method thereof
US7375526B2 (en) * 2006-10-20 2008-05-20 Edelstein William A Active-passive electromagnetic shielding to reduce MRI acoustic noise

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE577650C (de) † 1930-05-09 1933-06-02 Aeg Magnetspule fuer grosse Stromstaerken, welche aus mehreren konzentrisch zueinander angeordneten Teilspulen mit gemeinsamen Zu- oder Ableitungen besteht
GB640462A (en) † 1946-06-25 1950-07-19 British Thomson Houston Co Ltd Improvements in and relating to electromagnetic induction apparatus
US3309639A (en) † 1965-05-12 1967-03-14 Westinghouse Electric Corp Sound reducing means for electrical reactors
US3991394A (en) † 1975-12-17 1976-11-09 General Electric Company Helical inductor for power lines and the like
EP0092018A1 (fr) † 1982-04-21 1983-10-26 Spezielektra Esslinger K.G. Réactance, en particulier réactance isolée de l'air sans noyau magnétique
WO2002063605A1 (fr) † 2001-02-05 2002-08-15 Abb Technology Ag Dispositif et procede d'attenuation acoustique active de bruit se propageant a partir d'un composant de forme essentiellement cylindrique et utilisation de ce dispositif

Also Published As

Publication number Publication date
US20110115601A1 (en) 2011-05-19
HK1161416A1 (en) 2012-08-24
CN102203888B (zh) 2013-01-23
CA2729020C (fr) 2017-01-10
WO2010000005A1 (fr) 2010-01-07
AT507928A1 (de) 2010-09-15
CA2729020A1 (fr) 2010-01-07
EP2304744B1 (fr) 2013-11-20
US8339234B2 (en) 2012-12-25
BRPI0913649A2 (pt) 2015-11-24
AT507024A1 (de) 2010-01-15
AT507024B1 (de) 2011-10-15
EP2304744A1 (fr) 2011-04-06
AT507928B1 (de) 2015-09-15
BRPI0913649B1 (pt) 2019-09-03
CN102203888A (zh) 2011-09-28

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