EP1728311A1 - Device for connecting the sheath of an electric winding to a ground conductor and a maglev train equipped therewith - Google Patents

Device for connecting the sheath of an electric winding to a ground conductor and a maglev train equipped therewith

Info

Publication number
EP1728311A1
EP1728311A1 EP05740678A EP05740678A EP1728311A1 EP 1728311 A1 EP1728311 A1 EP 1728311A1 EP 05740678 A EP05740678 A EP 05740678A EP 05740678 A EP05740678 A EP 05740678A EP 1728311 A1 EP1728311 A1 EP 1728311A1
Authority
EP
European Patent Office
Prior art keywords
sleeve
winding
line
long stator
jacket
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.)
Withdrawn
Application number
EP05740678A
Other languages
German (de)
French (fr)
Inventor
Marcus Bauer
Xiufei Liu
Friedrich LÖSER
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ThyssenKrupp Transrapid GmbH
Original Assignee
ThyssenKrupp Transrapid GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ThyssenKrupp Transrapid GmbH filed Critical ThyssenKrupp Transrapid GmbH
Publication of EP1728311A1 publication Critical patent/EP1728311A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
    • H02K41/02—Linear motors; Sectional motors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
    • H01R4/64—Connections between or with conductive parts having primarily a non-electric function, e.g. frame, casing, rail
    • H01R4/646—Connections between or with conductive parts having primarily a non-electric function, e.g. frame, casing, rail for cables or flexible cylindrical bodies
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/40—Structural association with grounding devices

Definitions

  • the invention relates to a device of the type specified in the preamble of claim 1 and a magnetic levitation train equipped with such a device.
  • a long stator is provided along the route, in the grooves of which a three-phase AC winding is inserted, which, for. B. consists of a copper or aluminum cable and a surrounding insulation layer. Since voltage differences occur along the windings due to inductive effects during normal operation and currents caused by them can flow, it is known (DE 30 06 382 C2) that the windings are used to discharge these and other currents, to protect against danger when touched and for other reasons outer jacket made of an electrically insulating, but with carbon black, graphite, a copper braid or otherwise at least partially made electrically conductive and to connect this jacket in the area of each groove to an earth line extending along the long stator.
  • the winding sheath is provided with devices with the grounding Connect line, which consist of the windings partially surrounding, inserted into the slots of the long stator sleeves and have connection elements for the grounding line.
  • the connection elements are intended to enable simple connection to the grounding line.
  • the sleeves and the connection elements are made of stainless steel.
  • the grounding lines consist of a highly conductive material such as B. copper. They are connected to the earth potential at any point and as often as required and, like the AC windings, are provided with a conductive plastic jacket for protection against corrosion and contact.
  • the present invention is based on the technical problem of designing the device of the type described in the introduction in such a way that such braising and charring areas are avoided.
  • a magnetic levitation train equipped with such a device is to be proposed.
  • the invention is based on the consideration that when transferring the electrical Currents from the sleeves to the earthing cable due to the small transition cross-sections of the connection elements, undesirably high contact resistances and thus thermal peak loads can occur, which exceed the thermal load capacity of the plastic insulation of the earthing line and therefore lead to burns wherever they are greatest. If, on the other hand, corrosion-resistant metal earthing cables are used, the risk of thermal overloads is largely excluded.
  • the cuffs with target contact points, for. B. provided inwardly projecting beads.
  • Figure 1 is a schematic perspective view of the long stator of a linear motor with a three-phase AC winding for a magnetic levitation train.
  • FIG. 2 shows a front view of the long stator according to FIG. 1 in the region of a slot when the winding is inserted;
  • FIG. 3 shows a perspective view of a cuff according to the invention
  • 4 and 5 each show a front view and a cross section of the sleeve according to FIG. 3;
  • FIG. 6 shows a perspective view of the winding according to FIG. 1 without a long stator after insertion into the sleeve according to the invention together with an earthing conductor;
  • FIG. 7 shows a partial side view of the sleeve according to FIG. 3 with the winding inserted
  • FIG. 9 is a partial and schematic side view of a long stator in the area of a switch and with a special design of the device according to the invention in the switch area;
  • the long stator 1 shows a section of a long stator 1 of a linear motor for a magnetic levitation train.
  • the long stator 1 has, at predetermined intervals, grooves 2 which are designed to run transversely to its longitudinal axis 3 in order to accommodate a three-phase AC winding 4.
  • At the bottom of the long stator 1 z. B. guided with a support magnet reaction part of a magnetic levitation vehicle in the direction of the longitudinal axis 3.
  • the general structure and the mode of operation of such a long stator linear motor are known to the person skilled in the art, for. B. from the publication DE 39 17 058 Cl generally known, which is hereby made to avoid repetitions the subject of the present disclosure.
  • the grooves 2 are each open to the outside or down through slots 5 and delimited by walls 6, which have inwardly projecting projections 6a, which face each other and at a narrowest distance from each other have that are smaller than the outer diameter of the winding 4 corresponds.
  • FIG. 2 further shows, the parts of the wall 6 lying on both sides of the grooves 2 near the opening slot 5 are each provided with a support shoulder 7. These are supported by two lower longitudinal edges 8 of a sleeve 9, which consists of a thin stainless steel sheet shaped according to the wall 6.
  • the cuff 9 is preferably designed to be resilient so that it can be pressed into the groove 2 in the direction of an arrow shown in FIG. 2 until its longitudinal edges 8 engage behind the support shoulders 7. As a result, the sleeve 9 is then non-rotatably fixed in the groove 2 and secured against falling out.
  • the sleeve 9 is shaped accordingly, so that the groove 2 has a corresponding constriction 10 even after the sleeve 9 has been inserted.
  • windings 4 are slightly elastically deformable radially, they can also be pressed into the grooves 2 in the direction of the arrow shown after the insertion of the sleeves 9 until they engage elastically behind the constrictions 10 and are thus secured against falling out.
  • FIGS. 3 to 5 Details of a cuff 11 designed according to the invention can be found in particular in FIGS. 3 to 5, in which the cuff 11 is shown in a position rotated by 180 ° about its longitudinal axis 11a with respect to FIG. 2. Thereafter, the sleeve 11 contains a shell 12 with a contour that essentially follows a cylinder surface and is so large that it wraps around the winding 4 by a little more than half in the assembled state.
  • the length of the shell 12 in the direction of the longitudinal axis 11a corresponds essentially to the length of the groove 2, so that it fills the entire length after insertion.
  • the sleeve 9 has a stop 14, while at the other axial end it is provided with a further stop in the form of a connecting lug 15, to which a connecting element 16 for an earthing line 17 shown in FIG. 6 is fastened.
  • the stop 14 and the connecting lug 15 extend transversely to the longitudinal axis 11a approximately in the middle of the shell bottom and preferably consist of molded on the shell 12, made of the same material as these elements, which are formed by bending about 90 ° from the shell bottom Extensions will be obtained.
  • the distance of the connecting lug 15 from the stop 14 is dimensioned such that the width of the long stator 1 corresponds in this direction, so that both attach themselves to the front and rear sides after assembly and the sleeve 11 is thereby fixed axially immovably in the relevant groove 2 is.
  • the connecting element 16 preferably consists of a spring channel into which the
  • Earthing line 17 can be pressed in elastically and thus cannot be lost in this way.
  • the cuff 11 has at its two longitudinal ends and on the outer edges, i. H. at the points corresponding to the four corners in the flattened state, an inwardly projecting contact point 18.
  • Each desired contact point 18 preferably consists of a bead or a bulge-shaped elevation which is curved radially inwards according to FIGS. 4 and 5 and thereby brings about a cross-sectional narrowing of the shell 12.
  • the winding 4 contains a preferably multi-core, electrically well-conductive core 19, a high-voltage insulating layer 20 surrounding it and an outer jacket 20 enveloping the layer 20 from a z. B. with soot or the like. At least partially made plastic. Both the insulating layer 20 and the jacket 21 are elastically yieldable or indentable within certain limits. The radial heights of the desired contact points 18 are preferably chosen such that they bury themselves in the flexible jacket 21 after the insertion of a winding 4.
  • the bead height is also dimensioned with a very particular advantage in such a way that this applies not only within the usual tolerances, but even if the winding 4 and the sleeve 11 are radially slightly stretched or compressed in summer or winter due to temperature changes. This ensures that the contact between the jacket 21 and the sleeve 11 is always good, regardless of the season.
  • Contact surfaces 18a (FIGS. 4, 5) of the desired contact points 18 cooperating with the jacket 21 of the winding 4 are preferably smooth and slightly curved, but in no way shaped angularly or tapering.
  • these contact surfaces 18a are comparatively large in area, but are dimensioned such that they enable the jacket 21 to radially deflect when they act on it.
  • One consequence of this is that defined contacts for the transition of the electrical current from the jacket 21 to the connecting lug 15 and from there to the grounding line 17 lying in the connecting element 16 are created. Regardless of tolerances and weather conditions, a defined drain of the current through the grounding line 17 is always ensured.
  • the cuff 11 consists as a whole of a stainless steel sheet on which the parts 14, 15, 16 and 18 z. B. after a stamping step by conventional deformation steps.
  • the connecting element 16 receives the grounding line 17. So that good contacts with low contact resistances also result here, the connecting lugs 15 and the spring channels 16 are formed over a large area. This applies in particular with regard to the smaller flow cross sections of these parts in comparison to the sleeve 11.
  • the invention also provides that To manufacture grounding line 17 exclusively from a corrosion-resistant metal. This avoids the problems which have arisen on the previously customary insulating layers, which arise in the region of sharp-edged contact points.
  • the grounding line 17 is particularly advantageously made of the same material as the sleeve 11, that is to say made of stainless steel, in order to also prevent such faults such as B.
  • connection element 16 Materials such as B. tinned copper, titanium. Like. Be used. Finally, it is also advantageous that the current carrying capacity between the connection element 16 and the earthing line 17 is significantly greater due to the lack of an insulating layer.
  • the earthing line 17 suitably consists of a stainless steel cable, although it could also be designed as a solid rod.
  • FIGS. 7 and 8 show the side view of a short piece of a winding 4 and an end section of a sleeve 11 resting thereon with one of the desired contact points 18.
  • Equipotential lines are indicated with the reference number 22, which form during operation in the winding 4 and in the area the contact point 18 are comparatively slightly and in no way deformed as much as would be the case if there were pointed edges or the like.
  • FIG. 8 shows a longitudinal section through a short piece of a winding 4 and a desired contact point 18 pressed into its jacket 21, but in contrast to FIG.
  • the tensile earth wire 17 cannot follow these changes. For this reason, forces are exerted on the connecting elements 16 via the grounding line 17, by means of which they can plastically deform and reduce the clamping effect and thus also the size of the contact surfaces. This can ultimately lead to the failure of a contact between a sleeve 11 and the earthing line 17, which is accelerated by the oscillations and vibrations that occur during operation.
  • the earthing line 17 in the area of critical joints between the long stator sections 1 a, 1 b and to protect the ends obtained thereby from being fanned out by means of any fuses 23. Suitable for this are, for. B. tubular end pieces 23 which are drawn onto the ends obtained and then squeezed.
  • the ends of the earthing line 17 which are separated in this way are connected to one another by a flexible connector 25 provided with a loop 24, preferably made of the earthing line material, by connecting the connector 25 at its ends with the aid of clamp connectors 26 to the two separate ends of the ground line 17 is attached.
  • the loop 24 represents an elastic earth line reserve, which can deliver or absorb the required amounts of material when the spacing of the long stator sections la, lb changes without the actual earth line 17 being subjected to tension or one of the connecting elements 16, etc. being excessively stressed.
  • the clamp connector 26 z. B. from two parts 26a and 26b which can be connected by corrosion-resistant screws 27 and which on the one hand have the connecting piece 25 and on the other hand the associated end of the grounding Record line 17.
  • one part eg 26b
  • each straight winding strand of the windings 4 lying between the winding heads is provided with a sleeve 11 inserted into a groove 2 (not shown here).
  • the connection elements or spring channels 16 lie coaxially one behind the other in order to jointly accommodate the earth line 17 which extends in the longitudinal direction of the travel path.
  • the invention is not restricted to the exemplary embodiment described, which could be modified in many ways. This applies in particular to the number and shape of the desired contact points 18 provided on a sleeve 11. It would also be possible to provide the sleeves 11 with second connection elements 16 instead of the stops 14 and an earth line 17 on both sides of the long stator 1 relocate. It is also possible to choose a different shape for the sleeves 11 than is shown in FIG. 3, in particular if the shape of the grooves 2 in the long stator 1 requires this. It would also be possible to form the sleeves 11 in two or more parts. For example, one earthing line 17 could be attached to each side of the long stator 1 and each of these earth lines 17 could be assigned a sleeve part provided with a connecting element 16. In this case, the middle piece of the sleeve 11 shown in FIG. 3 could be completely omitted.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Electromagnetism (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)
  • Linear Motors (AREA)

Abstract

The invention relates to a device for connecting an, at least in part, electrically conductive sheath (21) of an alternating current winding (4), which is placed inside the slots of a long stator, to a ground conductor (17). The device contains a sleeve (11) provided with a connecting element (16) for the ground conductor (17). According to the invention, the sleeve (11), the ground conductor (17) and the connecting element (16) are exclusively made of noncorrosive metal.

Description

Vorrichtung zum Verbinden des Mantels einer elektrischen Wicklung mit einer Erdungsleitung und damit ausgerüstete MagnetschwebebahnDevice for connecting the jacket of an electrical winding to an earth line and magnetic levitation train equipped with it
Die Erfindung betrifft eine Vorrichtung der im Oberbegriff des Anspruchs 1 angegebenen Gattung und eine mit einer solchen Vorrichtung ausgerüstete Magnetschwebebahn.The invention relates to a device of the type specified in the preamble of claim 1 and a magnetic levitation train equipped with such a device.
Bei Magnetschwebebahnen mit Langstator-Linearmotoren ist längs des Fahrwegs ein Langstator vorgesehen, in dessen Nuten eine Dreiphasen- Wechselstrom- Wicklung eingelegt ist, die z. B. aus einem Kupfer- oder Aluminiumkabel und einer dieses umgebenden Isolationsschicht besteht. Da aufgrund von induktiven Effekten beim Normalbetrieb entlang der Wicklungen Spannungsdifferenzen entstehen und dadurch verursachte Ströme fließen können, ist es bekannt (DE 30 06 382 C2), die Wicklungen zur Ableitung dieser und anderer Ströme, zum Gefährdungsschutz bei Berührung und aus anderen Gründen zusätzlich mit einem äußeren Mantel aus einem elektrisch isolierenden, jedoch mit Ruß, Graphit, einem Kupfergeflecht oder sonstwie zumindest teilweise elektrisch leitend gemachten Kunststoff zu versehen und diesen Mantel im Bereich jeder Nut an eine längs des Langstators erstreckte Erdungsleitung anzuschließen. Um dabei sicherzustellen, daß geringe Übergangswiderstände zwischen dem Mantel und der Erdungsleitung erhalten werden, ist es weiter bekannt (DE 196 20 222 C2), den Wicklungsmantel mittels Vorrichtungen mit der Erdungs- leitung zu verbinden, die aus die Wicklungen teilweise umgebenden, in die Nuten des Langstators eingelegten Manschetten bestehen und Anschlußelemente für die Erdungsleitung aufweisen. Dadurch soll einerseits ein vergleichsweise großer Kontakt zwischen dem Mantel und den Manschetten hergestellt werden, während andererseits die Anschlußelemente einen einfachen Anschluß an die Erdungsleitung ermöglichen sollen. Zur Vermeidung von Korrosionen bestehen die Manschetten und die Anschlußelemente aus Edelstahl.In magnetic levitation trains with long stator linear motors, a long stator is provided along the route, in the grooves of which a three-phase AC winding is inserted, which, for. B. consists of a copper or aluminum cable and a surrounding insulation layer. Since voltage differences occur along the windings due to inductive effects during normal operation and currents caused by them can flow, it is known (DE 30 06 382 C2) that the windings are used to discharge these and other currents, to protect against danger when touched and for other reasons outer jacket made of an electrically insulating, but with carbon black, graphite, a copper braid or otherwise at least partially made electrically conductive and to connect this jacket in the area of each groove to an earth line extending along the long stator. In order to ensure that low contact resistances between the sheath and the grounding line are obtained, it is also known (DE 196 20 222 C2) that the winding sheath is provided with devices with the grounding Connect line, which consist of the windings partially surrounding, inserted into the slots of the long stator sleeves and have connection elements for the grounding line. This is intended on the one hand to produce a comparatively large contact between the jacket and the sleeves, while on the other hand the connection elements are intended to enable simple connection to the grounding line. To avoid corrosion, the sleeves and the connection elements are made of stainless steel.
Die Erdungsleitungen bestehen bisher aus einem gut leitenden Material wie z. B. Kupfer. Sie sind an beliebigen Stellen und beliebig oft an das Erdpotential angeschlossen und zum Korrosions- und Berührungsschutz wie die Wechselstrom- Wicklungen mit einem leitfähigen Kunststoffmantel versehen.So far, the grounding lines consist of a highly conductive material such as B. copper. They are connected to the earth potential at any point and as often as required and, like the AC windings, are provided with a conductive plastic jacket for protection against corrosion and contact.
Bei der praktischen Anwendung von Magnetschwebebahnen haben sich zwei wesentli- ehe Schwachstellen der beschriebenen Vorrichtungen ergeben. Zum einen wurde festgestellt, daß der Kunststoffmantel der Erdungsleitung nach einer längeren Betriebsdauer an zahlreichen Stellen durchgeschmort war. Derartige, auf thermische Überlastungen hinweisende Schmorstellen sind nicht tolerierbar. Zum anderen treten Brandbzw. Verkohlungsstellen auch im Mantel der Langstatorwicklung selbst auf, wodurch der Mantel allmählich brüchig wird und sich aufzulösen beginnt. Auch dies ist nicht tolerierbar.In the practical application of magnetic levitation trains, two major weak points of the devices described have arisen. On the one hand, it was found that the plastic sheath of the earthing line had burned through in numerous places after a long period of operation. Such braising points, which indicate thermal overloads, cannot be tolerated. On the other hand, fire or Charring also in the jacket of the long stator winding itself, whereby the jacket gradually becomes brittle and begins to dissolve. This is also intolerable.
Ausgehend davon liegt der vorliegenden Erfindung das technische Problem zugrunde, die Vorrichtung der eingangs bezeichneten Gattung so auszubilden, daß derartige Schmor- und Verkohlungsbereiche vermieden werden. Außerdem soll eine mit einer solchen Vorrichtung ausgerüstete Magnetschwebebahn vorgeschlagen werden.Proceeding from this, the present invention is based on the technical problem of designing the device of the type described in the introduction in such a way that such braising and charring areas are avoided. In addition, a magnetic levitation train equipped with such a device is to be proposed.
Zur Lösung dieser Aufgabe dienen die kennzeichnenden Merkmale der Ansprüche 1 und 15.The characteristic features of claims 1 and 15 serve to achieve this object.
Die Erfindung geht von der Überlegung aus, daß bei der Überleitung der elektrischen Ströme von den Manschetten auf die Erdungskabel aufgrund der kleinen Übergangsquerschnitte der Anschlußelemente unerwünscht hohe Übergangwiderstände und dadurch thermische Spitzenbelastungen auftreten können, die die thermische Belastbarkeit der Kunststoffisolierung der Erdungsleitung übersteigen und daher überall dort zu Durchschmorungen führen, wo sie am größten sind. Werden dagegen korrosionsfeste, aus Metall bestehende Erdungsleitungen verwendet, ist die Gefahr thermischer Überlastungen weitgehend ausgeschlossen.The invention is based on the consideration that when transferring the electrical Currents from the sleeves to the earthing cable due to the small transition cross-sections of the connection elements, undesirably high contact resistances and thus thermal peak loads can occur, which exceed the thermal load capacity of the plastic insulation of the earthing line and therefore lead to burns wherever they are greatest. If, on the other hand, corrosion-resistant metal earthing cables are used, the risk of thermal overloads is largely excluded.
Nach einem besonders bevorzugten Ausführungsbeispiel der Erfindung werden die Manschetten mit Soll-Kontaktstellen, z. B. nach innen ragenden Sicken versehen. Dadurch gelingt es, definierte Berührungsstellen zwischen dem Mantel der Wechselstrom-Wicklung und der Manschette zu schaffen und dadurch zu vermeiden, daß der Strom über zufällig gebildete, punktförmige Kontaktstellen abfließt und so hohe Stromdichten erreicht, daß die Mantelschicht der Wicklungen beschädigt wird. Dabei wird davon ausgegangen, daß bisher trotz der großflächigen Manschette nur dort Stromübergänge stattfinden, wo die Manschette zufällig und in Abhängigkeit von der Lage bzw. Biegung der Wicklung fest an deren Mantel anliegt.According to a particularly preferred embodiment of the invention, the cuffs with target contact points, for. B. provided inwardly projecting beads. This makes it possible to create defined points of contact between the jacket of the AC winding and the sleeve and thereby to prevent the current from flowing out via randomly formed, point-like contact points and reaching such high current densities that the jacket layer of the windings is damaged. It is assumed that, in spite of the large-area sleeve, current transitions have only taken place where the sleeve lies against its jacket at random and depending on the position or bending of the winding.
Weitere vorteilhafte Merkmale der Erfindung ergeben sich aus den Unteransprüchen.Further advantageous features of the invention emerge from the subclaims.
Die Erfindung wird nachfolgend in Verbindung mit den beiliegenden, in unterschiedlichen Maßstäben gehaltenen Zeichnungen an einem Ausfuhrungsbeispiel näher erläutert. Es zeigen:The invention is explained in more detail below in connection with the accompanying drawings, which are held at different scales, using an exemplary embodiment. Show it:
Fig. 1 in einer schematischen Perspektiven Darstellung den Langstator eines Linearmotors mit einer Dreiphasen- Wechselstrom- Wicklung für eine Magnetschwebebahn;Figure 1 is a schematic perspective view of the long stator of a linear motor with a three-phase AC winding for a magnetic levitation train.
Fig. 2 eine Vorderansicht des Langstators nach Fig. 1 im Bereich einer Nut beim Einlegen der Wicklung;FIG. 2 shows a front view of the long stator according to FIG. 1 in the region of a slot when the winding is inserted;
Fig. 3 eine perspektivische Ansicht einer erfindungsgemäßen Manschette; Fig. 4 und 5 je eine Vorderansicht und einen Querschnitt der Manschette nach Fig. 3;3 shows a perspective view of a cuff according to the invention; 4 and 5 each show a front view and a cross section of the sleeve according to FIG. 3;
Fig. 6 eine perspektivische Ansicht der Wicklung gemäß Fig. 1 ohne Langstator nach dem Einlegen in die erfindungsgemäße Manschette zusammen mit einer Erdungs- leirung;FIG. 6 shows a perspective view of the winding according to FIG. 1 without a long stator after insertion into the sleeve according to the invention together with an earthing conductor;
Fig. 7 eine teilweise Seitenansicht der Manschette nach Fig. 3 mit eingelegter Wicklung;FIG. 7 shows a partial side view of the sleeve according to FIG. 3 with the winding inserted;
Fig. 8 einen Schnitt längs der Linie VIII - VIII der Fig. 7;8 shows a section along the line VIII-VIII of FIG. 7;
Fig. 9 eine teilweise und schematische Seitenansicht eines Langstators im Bereich einer Weiche und mit einer besonderen Ausbildung der erfindungsgemäßen Vorrichtung im Weichenbereich; und9 is a partial and schematic side view of a long stator in the area of a switch and with a special design of the device according to the invention in the switch area; and
Fig. 10 und 11 je eine vergrößerte Vorder- und Seitenansicht eines Klemmverbinders der Vorrichtung nach Fig. 9.10 and 11 each show an enlarged front and side view of a clamp connector of the device according to FIG. 9.
Fig. 1 zeigt einen Abschnitt eines Langstators 1 eines Linearmotors für eine Magnet- Schwebebahn. Der Langstator 1 weist in vorgegebenen Abständen Nuten 2 auf, die quer zu seiner Längsachse 3 durchlaufend ausgebildet sind, um eine Dreiphasen- Wechselstrom- Wicklung 4 aufzunehmen. An der Unterseite des Langstators 1 wird z. B. ein mit Tragmagneten versehenes Reaktionsteil eines Magnetschwebefahrzeugs in Richtung der Längsachse 3 geführt. Der allgemeine Aufbau und die Wirkungsweise eines solchen Langstator-Linearmotors sind dem Fachmann z. B. aus der Druckschrift DE 39 17 058 Cl allgemein bekannt, die hiermit zur Vermeidung von Wiederholungen zum Gegenstand der vorliegenden Offenbarung gemacht wird.1 shows a section of a long stator 1 of a linear motor for a magnetic levitation train. The long stator 1 has, at predetermined intervals, grooves 2 which are designed to run transversely to its longitudinal axis 3 in order to accommodate a three-phase AC winding 4. At the bottom of the long stator 1 z. B. guided with a support magnet reaction part of a magnetic levitation vehicle in the direction of the longitudinal axis 3. The general structure and the mode of operation of such a long stator linear motor are known to the person skilled in the art, for. B. from the publication DE 39 17 058 Cl generally known, which is hereby made to avoid repetitions the subject of the present disclosure.
Nach Fig. 2 sind die Nuten 2 jeweils nach außen bzw. unten durch Schlitze 5 geöffnet und durch Wandungen 6 begrenzt, die nach innen ragende Vorsprünge 6a haben, die sich einander gegenüber stehen und an einer engsten Stelle Abstände von einander aufweisen, die kleiner sind, als dem Außendurchmesser der Wicklung 4 entspricht.According to Fig. 2, the grooves 2 are each open to the outside or down through slots 5 and delimited by walls 6, which have inwardly projecting projections 6a, which face each other and at a narrowest distance from each other have that are smaller than the outer diameter of the winding 4 corresponds.
Wie Fig. 2 weiter zeigt, sind die beidseitig der Nuten 2 liegenden Teile der Wandung 6 nahe des Öffnungsschlitzes 5 jeweils mit einer Auflageschulter 7 versehen. Auf diesen stützen sich zwei untere Längskanten 8 einer Manschette 9 ab, die aus einem dünnen, entsprechend der Wandung 6 geformten Edelstahl-Blech besteht. Die Manschette 9 ist vorzugsweise federelastisch ausgebildet, damit sie in Richtung eines in Fig. 2 eingezeichneten Pfeils in die Nut 2 eingedrückt werden kann, bis ihre Längskanten 8 hinter den Auflageschultern 7 einrasten. Dadurch ist die Manschette 9 dann in der Nut 2 undrehbar fixiert und gegen Herausfallen gesichert.As FIG. 2 further shows, the parts of the wall 6 lying on both sides of the grooves 2 near the opening slot 5 are each provided with a support shoulder 7. These are supported by two lower longitudinal edges 8 of a sleeve 9, which consists of a thin stainless steel sheet shaped according to the wall 6. The cuff 9 is preferably designed to be resilient so that it can be pressed into the groove 2 in the direction of an arrow shown in FIG. 2 until its longitudinal edges 8 engage behind the support shoulders 7. As a result, the sleeve 9 is then non-rotatably fixed in the groove 2 and secured against falling out.
Dort, wo die Wandungen 6 ihre Vorsprünge 6a haben, ist die Manschette 9 entsprechend geformt, so daß die Nut 2 auch nach dem Einsetzen der Manschette 9 eine entsprechende Verengung 10 hat.Where the walls 6 have their projections 6a, the sleeve 9 is shaped accordingly, so that the groove 2 has a corresponding constriction 10 even after the sleeve 9 has been inserted.
Da die Wicklungen 4 radial geringfügig elastisch verformbar sind, lassen sie sich auch nach dem Einsetzen der Manschetten 9 in Richtung des eingezeichneten Pfeils in die Nuten 2 eindrücken, bis sie hinter den Verengungen 10 elastisch einrasten und dadurch gegen Herausfallen gesichert sind.Since the windings 4 are slightly elastically deformable radially, they can also be pressed into the grooves 2 in the direction of the arrow shown after the insertion of the sleeves 9 until they engage elastically behind the constrictions 10 and are thus secured against falling out.
Die Ausbildung der Nuten 2 und Manschetten 9 ist dem Fachmann z. B. aus der Druckschrift DE 196 20 222 Cl allgemein bekannt, weshalb auch diese Druckschrift zur Vermeidung von Wiederholungen hiermit durch Referenz zum Gegenstand der vorliegenden Offenbarung gemacht wird.The formation of the grooves 2 and 9 cuffs is known to the expert z. B. from the publication DE 196 20 222 Cl generally known, which is why this publication to avoid repetition is hereby made the subject of the present disclosure by reference.
Einzelheiten einer erfindungsgemäß ausgebildeten Manschette 11 ergeben sich insbesondere aus Fig. 3 bis 5, in denen die Manschette 11 in einer gegenüber Fig. 2 um 180° um ihre Längsachse 11a gedrehten Stellung gezeigt ist. Danach enthält die Manschette 11 eine Schale 12 mit einer Kontur, die im wesentlichen einer Zylinder- fläche folgt und so groß ist, daß sie die Wicklung 4 im montierten Zustand um etwas mehr als die Hälfte umschlingt. Die Länge der Schale 12 in Richtung der Längsachse 11a entspricht im wesentlichen der Länge der Nut 2, so daß sie diese nach dem Einsetzen auf der ganzen Länge ausfüllt. An einem axialen Ende weist die Manschette 9 einen Anschlag 14 auf, während sie am anderen axialen Ende mit einem weiteren Anschlag in Form einer Anschlußfahne 15 versehen ist, an der ein Anschlußelement 16 für eine in Fig. 6 gezeigte Erdungsleitung 17 befestigt ist. Der Anschlag 14 und die Anschlußfahne 15 erstrecken sich quer zur Längsachse 11a etwa in der Mitte des Schalenbodens und bestehen vorzugsweise aus an die Schale 12 angeformten, aus demselben Material wie diese hergestellten Elementen, die durch Umbiegen um ca. 90° von an den Schalenboden angeformten Verlängerungen erhalten werden. Der Abstand der Anschlußfahne 15 vom Anschlag 14 ist so bemessen, wie der Breite des Langstators 1 in dieser Richtung entspricht, so daß sich beide nach der Montage an dessen Vorder- und Rückseite anlegen und die Manchette 11 dadurch axial unverschiebbar in der betreffenden Nut 2 festgelegt ist.Details of a cuff 11 designed according to the invention can be found in particular in FIGS. 3 to 5, in which the cuff 11 is shown in a position rotated by 180 ° about its longitudinal axis 11a with respect to FIG. 2. Thereafter, the sleeve 11 contains a shell 12 with a contour that essentially follows a cylinder surface and is so large that it wraps around the winding 4 by a little more than half in the assembled state. The length of the shell 12 in the direction of the longitudinal axis 11a corresponds essentially to the length of the groove 2, so that it fills the entire length after insertion. At one axial end, the sleeve 9 has a stop 14, while at the other axial end it is provided with a further stop in the form of a connecting lug 15, to which a connecting element 16 for an earthing line 17 shown in FIG. 6 is fastened. The stop 14 and the connecting lug 15 extend transversely to the longitudinal axis 11a approximately in the middle of the shell bottom and preferably consist of molded on the shell 12, made of the same material as these elements, which are formed by bending about 90 ° from the shell bottom Extensions will be obtained. The distance of the connecting lug 15 from the stop 14 is dimensioned such that the width of the long stator 1 corresponds in this direction, so that both attach themselves to the front and rear sides after assembly and the sleeve 11 is thereby fixed axially immovably in the relevant groove 2 is.
Das Anschlußelement 16 besteht vorzugsweise aus einem Federkanal, in den dieThe connecting element 16 preferably consists of a spring channel into which the
Erdungsleitung 17 elastisch eindrückbar und dadurch unverlierbar in diesem festlegbar ist.Earthing line 17 can be pressed in elastically and thus cannot be lost in this way.
Die Manschette 11 weist an ihren beiden Längsenden und an den Außenkanten, d. h. an den im flachgelegten Zustand den vier Ecken entsprechenden Stellen je eine nach innen vorstehende Soll-Kontaktstelle 18 auf. Jede Soll-Kontaktstelle 18 besteht vorzugsweise aus einer Sicke bzw. einer wulstförmigen Erhebung, die entsprechend Fig. 4 und 5 radial nach innen gewölbt ist und dadurch eine Querschnittsverengung der Schale 12 mit sich bringt.The cuff 11 has at its two longitudinal ends and on the outer edges, i. H. at the points corresponding to the four corners in the flattened state, an inwardly projecting contact point 18. Each desired contact point 18 preferably consists of a bead or a bulge-shaped elevation which is curved radially inwards according to FIGS. 4 and 5 and thereby brings about a cross-sectional narrowing of the shell 12.
Der übliche Aufbau der Wicklung 4 ergibt sich aus Fig. 6. Danach enthält die Wicklung 4 einen vorzugsweise mehradrigen, elektrisch gut leitenden Kern 19, eine diesen umgebende Hochspannungs-Isolierschicht 20 und einen äußeren, die Schicht 20 umhüllenden Mantel 21 aus einem z. B. mit Ruß od. dgl. zumindest teilleitfahig gemachten Kunststoff. Dabei sind sowohl die Isolierschicht 20 als auch der Mantel 21 in gewissen Grenzen elastisch nachgiebig bzw. eindrückbar. Die radialen Höhen der Soll-Kontaktstellen 18 sind vorzugsweise so gewählt, daß sie sich nach dem Einlegen einer Wicklung 4 in deren flexiblen Mantel 21 eingraben. Mit ganz besonderem Vorteil wird die Sickenhöhe außerdem derart bemessen, daß dies nicht nur im Rahmen der üblichen Toleranzen, sondern selbst dann gilt, wenn die Wicklung 4 und die Manschette 11 im Sommer bzw. Winter aufgrund von Temperaturänderungen radial geringfügig gedehnt oder gestaucht werden. Dadurch wird ein von der Jahreszeit unabhängiger, stets gleich guter Kontakt zwischen dem Mantel 21 und der Manschette 11 sichergestellt.The usual structure of the winding 4 is shown in FIG. 6. Thereafter, the winding 4 contains a preferably multi-core, electrically well-conductive core 19, a high-voltage insulating layer 20 surrounding it and an outer jacket 20 enveloping the layer 20 from a z. B. with soot or the like. At least partially made plastic. Both the insulating layer 20 and the jacket 21 are elastically yieldable or indentable within certain limits. The radial heights of the desired contact points 18 are preferably chosen such that they bury themselves in the flexible jacket 21 after the insertion of a winding 4. The bead height is also dimensioned with a very particular advantage in such a way that this applies not only within the usual tolerances, but even if the winding 4 and the sleeve 11 are radially slightly stretched or compressed in summer or winter due to temperature changes. This ensures that the contact between the jacket 21 and the sleeve 11 is always good, regardless of the season.
Mit dem Mantel 21 der Wicklung 4 zusammenwirkende Kontaktflächen 18a (Fig. 4, 5) der Soll-Kontaktstellen 18 sind vorzugsweise glatt und leicht gewölbt, aber keinesfalls eckig oder spitz zulaufend geformt. Außerdem sind diese Kontaktflächen 18a zwar vergleichsweise großflächig, aber dennoch so bemessen, daß sie ein radiales Ausweichen des Mantels 21 ermöglichen, wenn sie auf diesen einwirken. Dadurch ergibt sich insgesamt der Vorteil, daß die Manschette 11 im montierten Zustand nach Fig. 6 mit ihren Soll-Kontaktstellen 18 stets flächig und fest am Mantel 21 der Wicklung 4 anliegt. Eine Folge davon ist, daß definierte Kontakte für den Übergang des elektrischen Stroms vom Mantel 21 auf die Anschlußfahne 15 und von dort weiter auf die im Anschlußelement 16 einliegende Erdungsleitung 17 geschaffen werden. Unabhängig von Toleranzen und Witterungsverhältnissen ist so stets ein definierter Abfluß des Stroms durch die Erdungsleitung 17 sichergestellt.Contact surfaces 18a (FIGS. 4, 5) of the desired contact points 18 cooperating with the jacket 21 of the winding 4 are preferably smooth and slightly curved, but in no way shaped angularly or tapering. In addition, these contact surfaces 18a are comparatively large in area, but are dimensioned such that they enable the jacket 21 to radially deflect when they act on it. This results in the overall advantage that the sleeve 11 in the assembled state according to FIG. 6 with its desired contact points 18 always lies flat and firmly against the jacket 21 of the winding 4. One consequence of this is that defined contacts for the transition of the electrical current from the jacket 21 to the connecting lug 15 and from there to the grounding line 17 lying in the connecting element 16 are created. Regardless of tolerances and weather conditions, a defined drain of the current through the grounding line 17 is always ensured.
Die Manschette 11 besteht als Ganzes aus einem Edelstahl-Blech, an dem die Teile 14, 15, 16 und 18 z. B. nach einem Stanzschritt durch übliche Verformungsschritte angeformt werden.The cuff 11 consists as a whole of a stainless steel sheet on which the parts 14, 15, 16 and 18 z. B. after a stamping step by conventional deformation steps.
Das Anschlußelement 16 nimmt entsprechend Fig. 6 die Erdungsleitung 17 auf. Damit sich auch hier gute Kontakte mit geringen Übergangswiderständen ergeben, sind die Anschlußfahnen 15 und die Federkanäle 16 großflächig ausgebildet. Dies gilt ins- besondere im Hinblick auf die kleineren Strömungsquerschnitte dieser Teile im Vergleich zur Manschette 11. Außerdem ist erfindungsgemäß vorgesehen, die Erdungsleitung 17 ausschließlich aus einem korrosionsbeständigen Metall herzustellen. Dadurch werden die an den bisher üblichen Isolierschichten auftretenden Probleme vermieden, die sich im Bereich scharfkantiger Berührungsstellen ergeben. Außerdem wird die Erdungsleitung 17 mit besonderem Vorteil aus demselben Material wie die Manschette 11, d. h. aus Edelstahl hergestellt, um auch solche Störungen wie z. B. Kontakt-Korrosionen auszuschließen, die sich im Bereich der Kontaktstellen aufgrund der elektrochemischen Spannungsreihe ergeben können, wenn ungünstige Metallkombinationen wie z. B. Cu/Fe verwendet werden. Außerdem ergibt sich der Vorteil, daß Edelstahl korrosionsfest ist, so daß keine zusätzliche Korrosionsschutzschicht erforder- lieh ist. Anstelle von Edelstahl könnten allerdings auch andere korrosionsfesteAccording to FIG. 6, the connecting element 16 receives the grounding line 17. So that good contacts with low contact resistances also result here, the connecting lugs 15 and the spring channels 16 are formed over a large area. This applies in particular with regard to the smaller flow cross sections of these parts in comparison to the sleeve 11. The invention also provides that To manufacture grounding line 17 exclusively from a corrosion-resistant metal. This avoids the problems which have arisen on the previously customary insulating layers, which arise in the region of sharp-edged contact points. In addition, the grounding line 17 is particularly advantageously made of the same material as the sleeve 11, that is to say made of stainless steel, in order to also prevent such faults such as B. exclude contact corrosion, which can arise in the area of the contact points due to the electrochemical series when unfavorable metal combinations such. B. Cu / Fe can be used. There is also the advantage that stainless steel is corrosion-resistant, so that no additional corrosion protection layer is required. Instead of stainless steel, however, other corrosion-resistant ones could be used
Materialien wie z. B. verzinntes Kupfer, Titan od. dgl. verwendet werden. Vorteilhaft ist schließlich auch, daß die Strombelastbarkeit zwischen dem Anschlußelement 16 und der Erdungsleitung 17 wegen des Fehlens einer Isolierschicht deutlich größer ist.Materials such as B. tinned copper, titanium. Like. Be used. Finally, it is also advantageous that the current carrying capacity between the connection element 16 and the earthing line 17 is significantly greater due to the lack of an insulating layer.
Im übrigen besteht die Erdungsleitung 17 zweckmäßig aus einem Edelstahlseil, obwohl sie auch als massiver Stab ausgebildet sein könnte.In addition, the earthing line 17 suitably consists of a stainless steel cable, although it could also be designed as a solid rod.
In Fig. 7 und 8 ist die Wirkung der erfindungsgemäßen Soll-Kontaktstellen 18 angedeutet. Dabei zeigt Fig. 7 die Seitenansicht eines kurzen Stücks einer Wicklung 4 und einen Endabschnitt einer an ihr anliegenden Manschette 11 mit einer der Soll- Kontaktstellen 18. Mit dem Bezugszeichen 22 sind Äquipotentiallinien angedeutet, die sich beim Betrieb in der Wicklung 4 ausbilden und im Bereich der Kontaktstelle 18 vergleichsweise geringfügig und keinesfalls so stark verformt sind, wie dies beim Vorhandensein von spitzen Kanten od. dgl. der Fall wäre. Entsprechendes zeigt Fig. 8 in einem Längsschnitt durch ein kurzes Stück einer Wicklung 4 und einer in deren Mantel 21 eingedrückten Soll-Kontaktstelle 18, wobei allerdings im Gegensatz zu Fig. 7 nur die auf einer Seite einer Mittelebene 4a liegende Hälfte der Wicklung 4 dargestellt ist. Auch aus dieser Ansicht ist erkennbar, daß eine sehr homogene Verteilung der Äquipotentiallinien erhalten wird. Das führt zu der vorteilhaften Folge, daß sich im Bereich der Soll-Kontaktstellen homogene Stromverteilungen ergeben und keine kritischen Stromdichten erreicht werden. Um auch im Bereich einer im Fahrweg einer Magnetschwebebahn befindlichen Weiche eine ordnungsgemäße Funktion der Erdungsleitung 17 sicherzustellen, ist die beschriebene Vorrichtung hier entsprechend Fig. 9 bis 11 ausgebildet. Ein Problem ergibt sich daraus, daß sich im Bereich einer Weiche die Abstände zwischen zwei aneinander stoßenden Langstatorabschnitten la, lb aufgrund der Weichenbewegung um einige Millimeter verändern können. Diesen Änderungen kann die zugfeste Erdungsleitung 17 nicht folgen. Daher werden über die Erdungsleitung 17 Kräfte auf die Anschlußelemente 16 ausgeübt, durch die sich diese plastisch verformen und die Klemmwirkung und damit auch die Größe der Kontaktflächen verringern können. Das kann letztlich bis zum Ausfall eines Kontaktes zwischen einer Manschette 11 und der Erdungsleitung 17 führen, was durch die beim Betrieb auftretenden Schwingungen und Vibrationen noch beschleunigt wird.The effect of the desired contact points 18 according to the invention is indicated in FIGS. 7 and 8. 7 shows the side view of a short piece of a winding 4 and an end section of a sleeve 11 resting thereon with one of the desired contact points 18. Equipotential lines are indicated with the reference number 22, which form during operation in the winding 4 and in the area the contact point 18 are comparatively slightly and in no way deformed as much as would be the case if there were pointed edges or the like. Correspondingly, FIG. 8 shows a longitudinal section through a short piece of a winding 4 and a desired contact point 18 pressed into its jacket 21, but in contrast to FIG. 7 only the half of the winding 4 lying on one side of a central plane 4a is shown , From this view it can also be seen that a very homogeneous distribution of the equipotential lines is obtained. This leads to the advantageous consequence that homogeneous current distributions result in the area of the desired contact points and no critical current densities are achieved. In order to ensure proper functioning of the earthing line 17 even in the area of a switch located in the route of a magnetic levitation railway, the device described here is designed according to FIGS. 9 to 11. A problem arises from the fact that in the area of a turnout the distances between two abutting long stator sections la, lb can change by a few millimeters due to the turnout movement. The tensile earth wire 17 cannot follow these changes. For this reason, forces are exerted on the connecting elements 16 via the grounding line 17, by means of which they can plastically deform and reduce the clamping effect and thus also the size of the contact surfaces. This can ultimately lead to the failure of a contact between a sleeve 11 and the earthing line 17, which is accelerated by the oscillations and vibrations that occur during operation.
Erfindungsgemäß ist daher vorgesehen, die Erdungsleitung 17 im Bereich kritischer Stoßstellen zwischen den Langstatorabschnitten la, lb zu trennen und dadurch erhaltene Enden durch irgendwelche Sicherungen 23 vor dem Aufspleißen zu schützen. Geeignet hierfür sind z. B. rohrförmige Endstücke 23, die auf die erhaltenenen Enden aufgezogen und dann gequetscht werden. Die auf diese Weise getrennten Enden der Erdungsleitung 17 werden durch ein mit einer Schlaufe 24 versehenes, vorzugs- weise aus dem Erdungsleitungsmaterial bestehendes, flexibles Verbindungsstück 25 nach Art einer Brücke miteinander verbunden, indem das Verbindungsstück 25 an seinen Enden mit Hilfe von Klemmverbindern 26 an den beiden getrennten Enden der Erdungsleitung 17 befestigt wird. Dabei stellt die Schlaufe 24 eine elastische Erdleitungsreserve dar, die bei Abstandsänderungen der Langstatorabschnitte la, lb die erforderlichen Materialmengen liefern oder aufnehmen kann, ohne daß die eigentliche Erdleitung 17 auf Zug beansprucht oder eines der Anschlußelemente 16 usw. zu stark belastet wird.According to the invention, it is therefore provided to separate the earthing line 17 in the area of critical joints between the long stator sections 1 a, 1 b and to protect the ends obtained thereby from being fanned out by means of any fuses 23. Suitable for this are, for. B. tubular end pieces 23 which are drawn onto the ends obtained and then squeezed. The ends of the earthing line 17 which are separated in this way are connected to one another by a flexible connector 25 provided with a loop 24, preferably made of the earthing line material, by connecting the connector 25 at its ends with the aid of clamp connectors 26 to the two separate ends of the ground line 17 is attached. The loop 24 represents an elastic earth line reserve, which can deliver or absorb the required amounts of material when the spacing of the long stator sections la, lb changes without the actual earth line 17 being subjected to tension or one of the connecting elements 16, etc. being excessively stressed.
Nach Fig. 10 und 11 bestehen die Klemmverbinder 26 z. B. aus je zwei durch korrosionsfeste Schrauben 27 verbindbaren Teilen 26a und 26b, die zwischen sich einerseits das Verbindungsstück 25, andererseits das zugehörige Ende der Erdungs- leitung 17 aufnehmen. Dabei kann jeweils das eine Teil (z. B. 26b) ein Drehsicherungselement 28 in Form eines angeformten Stegs od. dgl. aufweisen, das sich im montierten Zustand gegen eine Seitenwand des Langstators 1 legt und ungewünschte Drehungen des Klemmverbinders 26 verhindert.10 and 11, the clamp connector 26 z. B. from two parts 26a and 26b which can be connected by corrosion-resistant screws 27 and which on the one hand have the connecting piece 25 and on the other hand the associated end of the grounding Record line 17. In this case, one part (eg 26b) can have an anti-rotation element 28 in the form of an integrally formed web or the like, which in the assembled state lies against a side wall of the long stator 1 and prevents undesired rotation of the clamping connector 26.
Aufgrund der beschriebenen Maßnahmen wird erreicht, daß die Erdungsleitung 17 im Bereich der Weichen nicht überlastet und dadurch die Lebensdauer der Manschetten 11 in diesen Bereichen erhöht wird. Entsprechende Schlaufen können auch an anderen Trennstellen zwischen Langstatorabschnitten oder Erdleitungsenden angebracht werden.The measures described ensure that the earthing line 17 is not overloaded in the area of the switches and thereby increases the service life of the sleeves 11 in these areas. Corresponding loops can also be attached to other separation points between long stator sections or earth line ends.
Aus Fig. 6 ist schließlich noch ersichtlich, daß jeder zwischen den Wickelköpfen liegende gerade Wicklungsstrang der Wicklungen 4 mit je einer, in eine hier nicht gezeigte Nut 2 eingelegten Manschette 11 versehen wird. Nach dem Einlegen der Manschetten 11 liegen die Anschlußelemente bzw. Federkanäle 16 koaxial hintereinander, um gemeinsam die in Längsrichtung des Fahrwegs erstreckte Erdungsleitung 17 aufzunehmen.Finally, it can be seen from FIG. 6 that each straight winding strand of the windings 4 lying between the winding heads is provided with a sleeve 11 inserted into a groove 2 (not shown here). After the sleeves 11 have been inserted, the connection elements or spring channels 16 lie coaxially one behind the other in order to jointly accommodate the earth line 17 which extends in the longitudinal direction of the travel path.
Die Erfindung ist nicht auf das beschriebene Ausführungsbeispiel beschränkt, das auf vielfache Weise abgewandelt werden könnte. Das gilt insbesondere für die Zahl und die Form der an einer Manschette 11 vorgesehenen Soll-Kontaktstellen 18. Weiter wäre es möglich, die Manschetten 11 statt mit den Anschlägen 14 mit zweiten Anschlußelementen 16 zu versehen und an beiden Seiten des Langstators 1 je eine Erdungsleitung 17 zu verlegen. Weiter ist es möglich, für die Manschetten 11 eine andere Form zu wählen, als in Fig. 3 gezeigt ist, insbesondere wenn die Form der Nuten 2 im Langstator 1 dies erfordert. Möglich wäre auch, die Manschetten 11 zwei- oder mehrteilig auszubilden. Beispielsweise könnte an jeder Seite des Langstators 1 je eine Erdungsleitung 17 angebracht und jeder dieser Erdleitungen 17 je ein mit einem Anschlußelement 16 versehener Manschettenteil zugeordnet werden. In diesem Fall könnte das Mittelstück der in Fig. 3 gezeigten Manschette 11 komplett entfallen.The invention is not restricted to the exemplary embodiment described, which could be modified in many ways. This applies in particular to the number and shape of the desired contact points 18 provided on a sleeve 11. It would also be possible to provide the sleeves 11 with second connection elements 16 instead of the stops 14 and an earth line 17 on both sides of the long stator 1 relocate. It is also possible to choose a different shape for the sleeves 11 than is shown in FIG. 3, in particular if the shape of the grooves 2 in the long stator 1 requires this. It would also be possible to form the sleeves 11 in two or more parts. For example, one earthing line 17 could be attached to each side of the long stator 1 and each of these earth lines 17 could be assigned a sleeve part provided with a connecting element 16. In this case, the middle piece of the sleeve 11 shown in FIG. 3 could be completely omitted.
Außerdem ist klar, daß die Erfindung auch eine mit den beschriebenen Vorrichtungen ausgerüstete Magnetschwebebahn umfaßt. Schließlich versteht sich, daß die verschiedenen Merkmale auch in anderen als den beschriebenen und dargestellten Kombinationen angewendet werden können. It is also clear that the invention also with the devices described equipped magnetic levitation train. Finally, it goes without saying that the various features can also be used in combinations other than those described and illustrated.

Claims

Ansprüche Expectations
1. Vorrichtung zum Verbinden eines elektrisch zumindest teilweise leitfähigen Mantels (21) einer in die Nuten (2) eines Langstators (1) eingelegten Wechselstrom- Wicklung (4) mit einer Erdungsleitung (17), enthaltend eine die Wicklung (4) im Nutbereich teilweise umschließende, aus Edelstahl bestehende Manschette (11), die an wenigstens einem Längsende mit einem ebenfalls aus Edelstahl bestehenden Anschlußelement (16) für die Erdungsleitung (17) versehen ist, dadurch gekennzeichnet, daß die Erdungsleitung (17) ausschließlich aus einem korrosionsfreien Metall besteht.1. Device for connecting an electrically at least partially conductive jacket (21) of an alternating current winding (4) inserted into the slots (2) of a long stator (1) with an earthing line (17), containing a part of the winding (4) in the slot area Enclosing sleeve made of stainless steel (11), which is provided on at least one longitudinal end with a stainless steel connection element (16) for the grounding line (17), characterized in that the grounding line (17) consists exclusively of a corrosion-free metal.
2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Erdungsleitung (17) aus Edelstahl besteht.2. Device according to claim 1, characterized in that the grounding line (17) consists of stainless steel.
3. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Anschlußelement (16) ein zur federnden Aufnahme der Erdungsleitung (17) bestimmter Federkanal ist.3. Apparatus according to claim 1 or 2, characterized in that the connecting element (16) is a spring channel for resiliently receiving the grounding line (17).
4. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß das Anschlußelement (16) mittels einer Anschlußfahne (15) einstückig mit der Manschette (11) verbunden ist.4. The device according to claim 3, characterized in that the connecting element (16) by means of a connecting lug (15) is integrally connected to the sleeve (11).
5. Vorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Manschette (11) mit wenigstens einer nach innen vorstehenden Soll-Kontaktstelle (18) versehen ist.5. Device according to one of claims 1 to 4, characterized in that the sleeve (11) is provided with at least one inwardly projecting desired contact point (18).
6. Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, daß die Soll-Kontaktstelle (18) aus einer Sicke besteht.6. The device according to claim 5, characterized in that the desired contact point (18) consists of a bead.
7. Vorrichtung nach Anspruch 5 oder 6, dadurch gekennzeichnet, daß die Manschette (11) an ihren Längsenden mit je zwei, an den Außenkanten angeordneten Soll- Kontaktstellen (18) versehen ist.7. The device according to claim 5 or 6, characterized in that the sleeve (11) at its longitudinal ends with two, arranged on the outer edges of the target Contact points (18) is provided.
8. Vorrichtung nach Anspruch 6 oder 7, dadurch gekennzeichnet, daß die Sicke eine solche radiale Höhe besitzt, daß sie sich im montierten Zustand der Wicklung (4) in deren Mantel (21) eindrückt.8. The device according to claim 6 or 7, characterized in that the bead has such a radial height that it presses in the assembled state of the winding (4) in the jacket (21).
9. Vorrichtung nach einem der Ansprüche 3 bis 8, dadurch gekennzeichnet, daß das Anschlußelement (16), die Anschlußfahne (15) und die Soll-Kontaktstelle (18) zur Reduzierung der Übergangs widerstände vom Mantel (21) der Wicklung (4) auf die Manschette (11) und von dieser auf die Erdungsleitung (17) großflächig ausgebildet sind.9. Device according to one of claims 3 to 8, characterized in that the connecting element (16), the terminal lug (15) and the desired contact point (18) to reduce the contact resistance from the jacket (21) of the winding (4) the sleeve (11) and from this to the ground line (17) are formed over a large area.
10. Vorrichtung nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß im Bereich von Trennstellen entstehende Enden der Erdungsleitung (17) durch ein mit einer Schlaufe (24) versehenes Verbindungsstück (25) verbunden sind.10. Device according to one of claims 1 to 9, characterized in that in the region of separating ends of the earthing line (17) are connected by a loop (24) provided with a connecting piece (25).
11. Vorrichtung nach Anspruch 10, dadurch gekennzeichnet, daß zur Verbindung der Erdungsleitungs-Enden mit dem Verbindungsstück (25) Klemmverbinder (26) vorgesehen sind.11. The device according to claim 10, characterized in that for connecting the ground line ends with the connecting piece (25) clamping connector (26) are provided.
12. Vorrichtung nach Anspruch 11, dadurch gekennzeichnet, daß die Klemmverbinder (26) aus Edelstahl bestehen.12. The apparatus according to claim 11, characterized in that the clamping connectors (26) consist of stainless steel.
13. Vorrichtung nach Anspruch 11 oder 12, dadurch gekennzeichnet, daß die Klemm- verbinder (26) mit Drehsicherungselementen (28) versehen oder als solche ausgebildet sind.13. The apparatus according to claim 11 or 12, characterized in that the clamping connector (26) with anti-rotation elements (28) or are formed as such.
14. Vorrichtung nach einem der Ansprüche 10 bis 13, dadurch gekennzeichnet, daß die Erdleitungs-Enden mit Sicherungen (23) gegen Aufspleißen verbunden sind.14. Device according to one of claims 10 to 13, characterized in that the ends of the earth lines are connected to fuses (23) to prevent them from fanning out.
15. Magnetschwebebahn mit einem Langstator (1) als Teil eines Langstator-Linearmo- tors, wobei der Langstator (1) Nuten (2) und eine in die Nuten eingelegte Wechselstrom-Wicklung (4) aufweist, die einen elektrischen, zumindest teiUeitfähigen Mantel (21) hat, dadurch gekennzeichnet, daß sie mit einer zur Erdung des Mantels (21) bestimmten Vorrichtung nach einem oder mehreren der Ansprüche 1 bis 14 ausgerü- stet ist. 15. Magnetic levitation train with a long stator (1) as part of a long stator linear motor The long stator (1) has grooves (2) and an alternating current winding (4) inserted into the grooves, which has an electrical, at least partially conductive sheath (21), characterized in that it is connected to a grounding means for the sheath ( 21) certain device according to one or more of claims 1 to 14 is equipped.
EP05740678A 2004-03-25 2005-03-22 Device for connecting the sheath of an electric winding to a ground conductor and a maglev train equipped therewith Withdrawn EP1728311A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004015096A DE102004015096A1 (en) 2004-03-25 2004-03-25 Device for connecting the jacket of an electrical winding to a grounding line and magnetic levitation train equipped therewith
PCT/DE2005/000529 WO2005096479A1 (en) 2004-03-25 2005-03-22 Device for connecting the sheath of an electric winding to a ground conductor and a maglev train equipped therewith

Publications (1)

Publication Number Publication Date
EP1728311A1 true EP1728311A1 (en) 2006-12-06

Family

ID=34963346

Family Applications (2)

Application Number Title Priority Date Filing Date
EP05729830A Withdrawn EP1728310A1 (en) 2004-03-25 2005-03-22 Long stator comprising a ground conductor and maglev railway that is equipped with said stator
EP05740678A Withdrawn EP1728311A1 (en) 2004-03-25 2005-03-22 Device for connecting the sheath of an electric winding to a ground conductor and a maglev train equipped therewith

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP05729830A Withdrawn EP1728310A1 (en) 2004-03-25 2005-03-22 Long stator comprising a ground conductor and maglev railway that is equipped with said stator

Country Status (5)

Country Link
US (2) US7563984B2 (en)
EP (2) EP1728310A1 (en)
CN (2) CN1860666B (en)
DE (1) DE102004015096A1 (en)
WO (2) WO2005096478A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004015096A1 (en) * 2004-03-25 2005-10-13 Thyssenkrupp Transrapid Gmbh Device for connecting the jacket of an electrical winding to a grounding line and magnetic levitation train equipped therewith
DE102009016745A1 (en) * 2008-12-08 2010-06-10 Thyssenkrupp Transrapid Gmbh Stator package for a maglev train
JP5688242B2 (en) * 2010-07-14 2015-03-25 矢崎総業株式会社 Shield wire ground wire connection structure
EP2973869B1 (en) 2013-03-15 2019-05-01 United Technologies Corporation Grounding sleeve
US9843179B1 (en) * 2013-04-16 2017-12-12 The United States Of America As Represented By The Secretary Of The Navy Corrosion resistant termination connector for steel wire rope/minesweeping cable
CN108418355A (en) * 2018-05-04 2018-08-17 上海电缆研究所有限公司 Long stator winding earth casing

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US963035A (en) * 1909-10-23 1910-07-05 Thomas J Cope Electric bond.
US2135937A (en) * 1937-03-25 1938-11-08 George B Gordon Coupling for wires or electrical conductors
US3806782A (en) * 1972-04-21 1974-04-23 Sumitomo Electric Industries Electromagnetic rail for driving liner motor and method of construction thereof
DE2365964A1 (en) * 1972-07-27 1977-04-07 Japan National Railway ELECTROMAGNETIC RAIL OF A THYRISTOR CONTROLLED LINEAR MOTOR FOR DRIVING A TRAIN
US4325598A (en) * 1979-12-21 1982-04-20 Diamond Communication Products, Inc. Ground clamp for grounding coaxial cable
DE3006382C2 (en) * 1980-02-21 1985-10-31 Thyssen Industrie Ag, 4300 Essen Three-phase alternating current winding for a linear motor
DE8410500U1 (en) * 1984-04-04 1984-07-12 Kelmaplast G. Kellermann GmbH, 4322 Sprockhövel Tape for finding laid in the ground, non-metallic lines or the like.
DE3917058C1 (en) 1989-05-25 1990-11-08 Thyssen Industrie Ag, 4300 Essen, De
DE3928277C1 (en) * 1989-07-25 1990-12-13 Thyssen Industrie Ag, 4300 Essen, De
JP2816400B2 (en) 1990-11-20 1998-10-27 北川工業株式会社 Conductive sheet for electromagnetic wave shielding
US5772455A (en) * 1995-05-30 1998-06-30 Electric Motion Company, Inc. Combination messenger strand ground and cable lashing wire clamp
CA2209223C (en) * 1995-10-30 2004-11-23 Luitpold Miller Elongate stator for a linear motor
DK0858690T3 (en) * 1995-10-30 2002-05-06 Nkt Cables Gmbh Device for connecting the electrically conductive sheath to a wire with an earth conductor
DE19620221A1 (en) * 1995-10-30 1997-05-07 Thyssen Industrie Long stator for a linear motor and a laminated core intended for the production of the long stator
US5759072A (en) * 1996-01-18 1998-06-02 Framatome Connectors Usa Inc. Clip-on lay-in connector
ATE197206T1 (en) * 1996-02-12 2000-11-15 Thyssen Transrapid System Gmbh METHOD FOR PRODUCING AN ELECTROMAGNETIC ASSEMBLY FOR A MAGNETIC LEAVE TRAIN
DE19703497A1 (en) * 1996-02-12 1997-08-14 Thyssen Industrie Method for producing an electromagnetic assembly for a magnetic levitation railway
US5767449A (en) * 1996-07-09 1998-06-16 Yazaki Corporation Method and apparatus for grounding a RFI/EMI shielding tube
GB2331869A (en) 1997-11-28 1999-06-02 Asea Brown Boveri Electrical contact of semi-conductive layer of HV cable
DE19833418A1 (en) 1997-12-17 1999-06-24 Otto Breitenbach Three-phase AC winding for stator of linear motor
DE20101302U1 (en) * 2001-01-25 2001-03-29 Weitkowitz Elektro Gmbh Connection socket for an earthing bridge
US6548762B2 (en) * 2001-02-21 2003-04-15 Andrew Corporation Transmission line grounding lug
DE50306008D1 (en) * 2002-04-10 2007-02-01 Transrapid Int Gmbh & Co Kg Device for operating a magnetic vehicle
DE102004015096A1 (en) * 2004-03-25 2005-10-13 Thyssenkrupp Transrapid Gmbh Device for connecting the jacket of an electrical winding to a grounding line and magnetic levitation train equipped therewith

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2005096479A1 *

Also Published As

Publication number Publication date
DE102004015096A1 (en) 2005-10-13
US20070216233A1 (en) 2007-09-20
CN1879281B (en) 2011-08-17
US20070281517A1 (en) 2007-12-06
EP1728310A1 (en) 2006-12-06
CN1879281A (en) 2006-12-13
CN1860666A (en) 2006-11-08
CN1860666B (en) 2010-12-01
US7563984B2 (en) 2009-07-21
WO2005096479A1 (en) 2005-10-13
WO2005096478A1 (en) 2005-10-13

Similar Documents

Publication Publication Date Title
EP3507866B1 (en) Conductor connection clamp
EP2446509A1 (en) Electrical plug connector
WO2010026038A1 (en) Busbar and busbar system in flat profile design comprising a plurality of partial conductor rails having recesses at the narrow side for latching of contact spring elements
WO2005096479A1 (en) Device for connecting the sheath of an electric winding to a ground conductor and a maglev train equipped therewith
EP1913619B1 (en) Switch pole with supporting frame having latching means
DE3835990A1 (en) BUSBAR CONNECTOR
WO2007085424A1 (en) Current conductor for an electrical device, especially bus bar conductor for an electrical medium voltage installation
EP2034500B1 (en) Power resistor for high voltage power switch
EP2593998B1 (en) Busbar trunking unit and busbar trunking system comprising a busbar trunking unit
EP0858690A1 (en) Device for connecting the electrically conducting jacket of a line to an earth lead
EP2107660B1 (en) Electricity rail connector
DE19604485A1 (en) Connector for two sections of a high-voltage conductor
EP3995705A1 (en) Device for fixing to an elongated element
EP1554741B1 (en) Insulant housing comprising an inner ribbed contour
DE4225989C2 (en) Field spacers for high-voltage overhead lines with bundle conductors
DE102016217496B4 (en) On resistor arrangement
DE3224743C2 (en)
DE19604486A1 (en) Connecting element for two sections of a high-voltage conductor
EP4221476B1 (en) Power line tube and power converter assembly using the same
DE202017107220U1 (en) Pantograph and conductor rail system
DE102007012530A1 (en) Arrangement for contacting an aluminum-containing electrical conductor
DE3606244C2 (en)
DE4223419C2 (en) Electric clutch
EP3863121A2 (en) Cable connection in particular for an electrical overhead line and set comprising a plurality of cable clamps
EP4054034A1 (en) Cable connection and prefabricated spiral bars and method for connecting two cable ends of a cable

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20061013

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR

DAX Request for extension of the european patent (deleted)
17Q First examination report despatched

Effective date: 20070808

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20080219